JP5588272B2 - Production system for foam-containing solid fat food and method for producing foam-containing solid fat food - Google Patents

Description

  The present invention relates to a production system for a bubble-containing solid fat food and a method for producing a bubble-containing solid fat food.

Such a production system of a bubble-containing solid fat food and a method for producing a bubble-containing solid fat food produce a solid fat food containing bubbles such as air and nitrogen. Specific examples of the solid fat food Examples include margarine and butter.
In general, solid fats and oils such as margarine and butter are kept solid by being stored at a low temperature such as a refrigerator.
In order to soften such a solid fat food even at a low temperature equivalent to the storage temperature of a refrigerator or the like and to make it easy to apply to a food such as bread, bubbles are included in the solid fat food.

In such a production system for a bubble-containing solid fat food, conventionally, a feed pump that feeds a raw material that contains oil and fat and is heated to flow, and a gas is sent to the feed material that is sent from the feed pump. An aeration means to be included and a cooling means for cooling and solidifying the aerated raw material containing the gas by the aeration means were provided.
That is, it has been a production method in which an aerated raw material containing a gas by an aeration means is supplied to a cooling means as it is, and is cooled by a cooling means to be solidified (for example, see Patent Document 1).

By the way, since the overrun value calculated | required by the following formula is generally used as a parameter | index showing the gas content rate in bubble-containing solid fat food, in the following description, the gas content rate in bubble-containing solid fat food When discussing the size of, we will use this overrun value to explain.
Overrun value = {(weight at a predetermined volume of a solid fat-and-fat food product not containing air bubbles−weight at a predetermined volume of a solid oil-and-fat food product containing air bubbles) ÷ weight by a predetermined volume of a solid oil-and-fat food product containing air bubbles} × 100 [%]

JP-A-9-154487

By the way, the aerated solid fat food can be softened even at low temperatures as the overrun value is increased. Conventionally, it is difficult to increase the overrun value for the following reasons, and the overrun value is increased. There was room for improvement above.
That is, since the aerated raw material containing the gas by the aeration means is supplied to the cooling means as it is, and cooled by the cooling means to be solidified, the bubbles in the aerated raw material supplied to the cooling means Large bubbles and large bubbles are likely to become larger because the bubbles are easily integrated with each other, and the larger the bubbles, the easier to escape from the aerated material.
Accordingly, bubbles are removed from the aerated raw material in the path from the aerated means to the cooling means or while being cooled by the cooling means, and as a result, it is difficult to increase the overrun value.
For example, in the case where only fats and oils such as margarine and butter are raw materials having a composition, conventionally, even if the overrun value is increased, the limit is up to 10%.

  Incidentally, it is conceivable to reduce the size of bubbles contained in the raw material by reducing the size of the ejection holes for ejecting gas in the aeration means. However, since the temperature of the heated material is relatively high even though it can flow, the smaller the gas ejection holes in the aeration means, the more difficult it is to inject the gas into the material. There is a limit to reducing the size of bubbles to be contained.

In addition, in said patent document 1, what contained honey in addition to fats and oils is used as a raw material. And since the raw material containing honey in addition to fats and oils has a higher viscosity in a flowable state than the raw materials containing only fats and oils, bubbles are difficult to escape and the overrun value can be increased.
That is, fats and oils containing honey are likely to increase the overrun value. However, as a bubble-containing solid oil and fat food, it is desirable to increase the overrun value even for fats and oils that are difficult to increase the overrun value.
That is, it is desired to increase the overrun value not only when the oil and fat is used alone, but also when the raw material includes a material other than the oil and fat such as honey in addition to the oil and fat.

  The present invention has been made in view of such circumstances, and the object thereof is to increase the overrun value and to produce a foam-containing solid fat food system capable of evenly dispersing bubbles and a foam-containing solid fat. It is in providing the manufacturing method of foodstuffs.

In order to achieve the above object, the characteristic configuration of the production system of the bubble-containing solid fat food according to the present invention includes a heating storage section that stores a raw material containing fat and oil and that is heated to flow, and the heating storage section. A pump for sending out the raw material heated so as to be flowable, an aeration means for containing gas in the raw material sent from the delivery pump and in a heated state, and a flow containing gas by the aeration means A subdivided mixing means for subdividing and remixing the aerated raw material in a state and in a heated state, and subdividing the bubbles contained in the aerated raw material, and the bubbles subdivided by the subdivided mixing means An agitating and cooling unit that cools and solidifies the aerated raw material that is in a temperature-raised state with stirring, and pressurizes the aerated raw material that is sent from the sub-mixing means and is supplied to the agitating and cooling unit Boosting pump Vignetting,
The delivery pressure of the heated material by the delivery pump is set to be smaller than the discharge pressure of the aerated material in the elevated temperature state by the boost pump .

According to the above characteristic configuration, the raw material containing fats and oils and heated so as to be flowable is delivered by the delivery pump, and gas is contained in the raw material delivered from the delivery pump by the aeration means.
The aerated raw material containing the gas by the aeration means and in a fluid state is subdivided and remixed in the subdivision mixing means, and the bubbles contained in the aerated raw material are subdivided to serve as a cooling means . In the stirring and cooling unit , the aerated raw material containing bubbles subdivided by the subdivision mixing means is cooled and solidified while being stirred . Until the aerated raw material is supplied to the stirring and cooling unit , the aerated raw material is in a temperature rising state, and in the stirring and cooling unit , the aerated raw material is in a cooled state.
That is, since the bubbles in the aerated raw material are subdivided and uniformly dispersed throughout the entire area of the aerated raw material by the subdivision mixing means, the subdivided small bubbles are difficult to escape from the aerated raw material, The subdivided small bubbles are difficult to be integrated because they are difficult to integrate, and the state in which the small bubbles are dispersed in the aerated raw material is maintained.
Then, so bubbles are supposed to be aerated raw material which is distributed evenly subdivided is supplied to the stirring cooled portion from subdivision mixing means, pathway or stirring cooler reaching the stirring cooling unit from subdivision mixing means During the cooling, the bubbles are difficult to escape from the aerated raw material, so that the aerated raw material can be cooled and solidified in a state where the subdivided bubbles are sufficiently retained in the stirring and cooling unit . Moreover, the gas thrown in from an aeration means can be hold | maintained in a bubble-containing solid fat food without waste.
Therefore, it is possible to provide a production system for a bubble-containing solid fat food that can increase the overrun value and can evenly disperse the bubbles.

Furthermore, according to the above characteristic configuration, the aerated raw material fed from the subdivision mixing unit is boosted by the boosting pump and then supplied to the cooling unit.
In other words, by increasing the delivery pressure of the aerated raw material by the boosting pump, the bubbles are more difficult to escape from the aerated raw material, so that it is cooled in the path from the subdivision mixing means to the cooling means or by the cooling means. In the meantime, it is possible to further suppress bubbles from being removed from the aerated raw material.
Therefore, the overrun value can be further increased.

A further characteristic configuration of the production system of the bubble-containing solid fat food according to the present invention is that the aeration means includes a plurality of ejection holes that are closed at the tip and eject gas radially outward, on the tip side of the cylindrical wall. It is composed of cylindrical gas ejection nozzles dispersed in the circumferential direction.
The gas jet nozzle is disposed in a raw material supply path through which the raw material that has been sent out from the delivery pump and in a heated state flows, with the longitudinal direction aligned with the raw material flow direction.

According to the above characteristic configuration, gas is ejected from each ejection hole of the aeration means in a direction intersecting with the flow direction of the raw material in the raw material supply path (outward in the radial direction of the gas ejection nozzle), and from a plurality of ejection holes. Since the gas is ejected in different directions, the ejected gas becomes bubbles and is dispersed in a wide range of the raw material flowing in the raw material supply path.
Then, since the aerated raw material is supplied to the subdivision mixing means in a state where the bubbles are dispersed in a wider range of the aerated raw material, the subdivided mixing means subdivides the bubbles, and the subdivided bubbles are aerated. It can be more evenly distributed over a wider range of raw materials.
Therefore, it is possible to produce a bubble-containing solid fat food having a high overrun value and having the bubbles more evenly dispersed.

  A further characteristic configuration of the production system of the bubble-containing solid fat food product according to the present invention is such that the subdivision mixing means includes a plurality of narrow subdivision paths capable of flowing by bending the aerated raw material at a plurality of locations. It is in the point.

According to the above characteristic configuration, the aerated raw material flows in parallel through a plurality of narrow subdivision processing paths while repeatedly colliding with and bending the members forming the bent portions of the subdivision processing paths.
The aerated raw material flows and merges through a plurality of narrow subdivision paths, and is subdivided and remixed by a shearing action every time it collides with a forming member of a bent portion of each subdivision process path and bends. Therefore, the bubbles contained in the aerated raw material are further subdivided and are more evenly dispersed throughout the entire area of the aerated raw material.
Accordingly, it is possible to produce a bubble-containing solid fat food in which the overrun value is higher and the bubbles are more evenly dispersed.

A further characteristic configuration of the production system for the bubble-containing solid fat food according to the present invention is that the sub-mixing means is in a state where the outer peripheral surface is spaced from the inner peripheral surface of the outer member. An inner member disposed in the outer member,
A plurality of rod-like or tooth-like outer protrusions protruding radially inward on the inner peripheral surface of the outer member are arranged in the axial direction in the circumferential direction. Provided at intervals,
On the outer peripheral surface of the inner member, a plurality of rod-like or tooth-like inner protrusions protruding radially outward are arranged at intervals in the circumferential direction. It is provided with a space in the axial direction in a form in which each inner protrusion is staggered in the circumferential direction with each outer protrusion, and enters between the protrusion rows with a distance from the outer protrusion row,
The plurality of subdivision paths are formed by the plurality of outer protrusion rows and the plurality of inner protrusion rows between the outer member and the inner member.

According to the above characteristic configuration, a larger number of subdivision paths are formed in the annular space between the outer member and the inner member by the plurality of outer projection rows and the plurality of inner projection rows. A large number of subdivided processing paths are connected like a mesh, and are configured so that merging and branching are repeated at a plurality of locations.
And the aerated raw material flowing through the mesh-shaped subdivision processing path collides with the outer protrusions and the inner protrusions (corresponding to the forming member of the subdivision processing path) and is subdivided. Since the aeration raw materials collide with each other again and repeatedly many times, the aeration raw materials are further subdivided and remixed more effectively, and the bubbles contained in the aeration raw materials are further subdivided. And is more evenly distributed throughout the raw material.
Accordingly, it is possible to produce a bubble-containing solid fat food having a higher overrun value and in which bubbles are more evenly dispersed.

A further characteristic configuration of the production system of the bubble-containing solid fat food according to the present invention is that the subdivision mixing means has a cylindrical subdivision mixing whose one end is closed along the raw material flow direction in the raw material supply path. Subdivision mixing provided with a plurality of narrow subdivision passages that are connected to the subpart side tube body and the subdivision mixing unit side pipe body through a receiving port and that can flow by bending the aerated raw material at a plurality of locations. With
The gas ejection nozzle is inserted into the subdivision mixing unit side tube from the closed end of the subdivision mixing unit side tube so as to be substantially concentric with the subdivision mixing unit side tube, and is arranged in the longitudinal direction of the gas injection nozzle. The point is that the gas is ejected in the radial direction with respect to the moving aerated raw material .

In the production system for a bubble-containing solid fat food, the cross-sectional shape of each of the inner peripheral surface of the outer member and the outer peripheral surface of the inner member is a circle, and either the outer member or the inner member is driven. You may be comprised so that it may rotate.
According to this, since one of the outer member and the inner member is driven and rotated, when the aerated raw material flows out between the projections of the stationary member of the outer member and the inner member, the outer member and the inner member The projection of the stationary member of the outer member and the inner member when colliding with the projection of the rotating member of the member and outflowing between the projections of the rotating member of the outer member and the inner member And repeatedly flowing through the plurality of subdivision processing paths between the outer member and the inner member while repeating the collision.
Therefore, the aerated raw material is subdivided and remixed very effectively, and the bubbles contained in the aerated raw material are subdivided very effectively and evenly distributed over the entire area of the aerated raw material. As a result, it is possible to produce a bubble-containing solid fat food having a higher overrun value and having the bubbles more evenly dispersed.

In order to achieve the above-mentioned object, the characteristic configuration of the method for producing a bubble-containing solid fat food according to the present invention is to feed a raw material that contains fat and is heated to flow in the heating storage section by a pump for delivery. The raw material sent from the pump for delivery is made to contain a gas by the aeration means, and the aeration raw material in the fluidized state and the temperature rise state is subdivided by the aeration means. Subdivided and remixed by means to subdivide the bubbles contained in the aerated raw material, and boosted the aerated raw material containing the subdivided bubbles by the subdivided mixing means in a heated state by a booster pump Then, when solidifying by cooling with stirring by the stirring cooling unit, the delivery pressure of the heated raw material by the delivery pump is the discharge pressure of the aerated raw material in the elevated temperature state by the boosting pump Smaller than It lies in the fact that is.

According to the above characteristic configuration, the raw material containing fats and oils and heated so as to be flowable is delivered by the delivery pump, and gas is contained in the raw material delivered from the delivery pump by the aeration means.
Gas is contained aerated raw material in the fluidized state by the pneumatic means, and then re-mixed with subdividing the subdivided mixing means, subdivided air bubbles contained in the aerated material, in a stirred cooling unit, subdivided The aerated raw material containing bubbles subdivided by the mixing means is cooled and solidified while stirring . Until the aerated raw material is supplied to the stirring and cooling unit , the aerated raw material is in a heated state, and in the agitating and cooling unit , the aerated raw material is in a cooled state.
In other words, since the bubbles in the aerated raw material are subdivided and subdivided evenly throughout the entire area of the aerated raw material by the subdivision mixing means, the subdivided small bubbles are difficult to escape from the aerated raw material. The small bubbles thus formed are difficult to be integrated and are therefore difficult to increase, and the state in which the small bubbles are dispersed in the aerated raw material is maintained.
Then, so can be supplied to the stirring cooled portion of the subdivided evenly distributed aerated raw material gas bubbles from subdivision mixing means, and stirred at pathway or stirring cooler reaching the stirring cooling unit from subdivision mixing means While cooling, it is difficult for air bubbles to escape from the aerated raw material, so that the aerated raw material can be cooled and solidified in a state where the subdivided bubbles are sufficiently retained in the stirring cooling section . Moreover, the gas thrown in from an aeration means can be hold | maintained in a bubble-containing solid fat food without waste.
Therefore, it is possible to provide a method for producing a bubble-containing solid fat food that can increase the overrun value and can evenly disperse the bubbles.

The block diagram which shows the whole schematic structure of the manufacturing system of a bubble containing solid fat food Sectional view of the main part showing the periphery of the gas ejection nozzle Partial cutaway perspective view of subdivision mixing section Partial sectional view on a plane perpendicular to the rotational axis of the rotor in the subdivision mixing section Partial sectional view on a plane along the rotation axis of the rotor in the subdivision mixing section Side view of the stirring cooling part with a part cut away VII-VII arrow view of FIG.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
As shown in FIG. 1, a production system for a bubble-containing solid fat food (hereinafter sometimes abbreviated as “fat food production system”) stores a raw material M containing fat and oil and heats it up so that it can flow. Unit 20, a delivery pump 1 for delivering the raw material M heated to flow by the heating storage unit 20, and a gas from a gas supply source 2 such as a cylinder to the raw material M delivered from the delivery pump 1 The gas ejection nozzle 3 containing G (an example of the aeration means) and the aeration raw material Mg in a fluid state containing the gas G by the gas ejection nozzle 3 are subdivided and remixed, and the aeration A sub-mixing unit 30 (an example of a sub-mixing unit) that subdivides the bubbles B contained in the raw material Mg, and an aerated raw material Mg containing the bubbles B subdivided in the sub-mixing unit 30 is cooled while stirring. Solidification stirring cooling section 0 is constituted by a (one example of the cooling means).
In this embodiment, the oil and fat food manufacturing system is further provided with a booster pump 4 that pressurizes the aerated raw material Mg sent from the subdivision mixing unit 30 and supplies it to the stirring and cooling unit 40.
In this embodiment, a case where margarine is used as the raw material M containing oil and fat and nitrogen gas is used as the gas G will be described as an example.

As shown in FIG. 1, a delivery port 21 of the heating storage unit 20 and a receiving port 41 of the stirring and cooling unit 40 are connected by a raw material supply path 5, and the raw material supply path 5 is directed from the upstream side toward the downstream side. In order, a delivery pump 1, a subdivision mixing unit 30, and a booster pump 4 are provided. Further, the fat and oil food delivery path 6 through which the bubble-containing solid fat and oil food F is fed is connected to the delivery port 42 of the stirring and cooling unit 40.
A gas supply path 7 through which the gas G is sent from the gas supply source 2 is connected to a portion of the raw material supply path 5 between the delivery pump 1 and the subdivision mixing unit 30 via the gas ejection nozzle 3, and the gas supply The passage 7 is provided with a gas flow rate adjusting valve 8 that adjusts the supply amount of the gas G to the raw material M flowing through the raw material supply passage 5. The flow rate of the raw material M flowing through the raw material supply path 5 is adjusted by the delivery pump 1.

Next, description will be added about each part of the fat and oil food manufacturing system.
As shown in FIG. 1, the heating storage unit 20 includes a storage tank 22 that stores the raw material M, a hot water jacket 23 that covers the outer periphery of the storage tank 22, and the like, and the raw material M that has been heated to flow. Is provided at the bottom of the storage tank 22.
And it is comprised so that the raw material M in the storage tank 22 may be heated to the temperature which can flow by circulatingly supplying the hot water adjusted to predetermined temperature to the warm water jacket 23 with a warm water supply source (illustration omitted). . Incidentally, when the raw material M is margarine, the margarine is heated to, for example, about 40 ° C. by the hot water jacket 23. When the margarine is heated to about 40 ° C. as described above, the margarine has a viscosity of about 65 cP and can flow.
The delivery pump 1 is provided in the raw material supply path 5 so as to suck the delivery port 21 of the storage tank 22.

As shown in FIG. 2, the gas ejection nozzle 3 has a plurality of gas Gs ejected radially outwardly to the distal end side (location slightly retracted from the distal end) of the cylindrical wall of the cylindrical body 3 a whose distal end is closed. The ejection holes 3b are distributed and provided in the circumferential direction.
In this embodiment, the two ejection holes 3b are provided on the cylindrical wall of the cylindrical body 3a so as to be distributed on the opposite sides with respect to the axis of the cylindrical body 3a.

As shown in FIG. 2 and FIG. 3, a cylindrical subdivision mixing unit side tube 9 whose one end is closed is connected to the receiving port 31 of the subdivision mixing unit 30, and the subdivision mixing unit side tube 9 On the closed end side, the delivery pump side pipe body 10 is connected in a substantially right-angled manner, and a part of the raw material supply path 5 is formed by the delivery pump side pipe body 10 and the subdivision mixing part side pipe body 9. Yes.
Then, the gas ejection nozzle 3 has its longitudinal direction along the longitudinal direction of the subdivision mixing unit side tube 9 and the tip ejection hole 3b is close to the receiving port 31 of the subdivision mixing unit 30. The tube body 9 is inserted substantially concentrically from its closed end.
That is, the gas ejection nozzle 3 is disposed in the raw material supply path 5 in which the raw material M sent from the delivery pump 1 flows in a posture in which the longitudinal direction is aligned with the raw material flow direction.

As shown in FIG. 2, the gas G is ejected from each ejection hole 3 b of the gas ejection nozzle 3 in a direction substantially orthogonal to the flow direction of the raw material M in the raw material supply path 5 (left and right direction in FIG. 2), and two Since the gas G is ejected from the ejection holes 3b in the opposite directions, the ejected gas G becomes bubbles B and is dispersed in a wide range of the raw material M flowing in the raw material supply path 5.
Furthermore, since the gas G is ejected from the gas ejection nozzle 3 to the raw material M near the upper side of the receiving port 31 of the subdivision mixing unit 30, the bubbles B are sufficiently retained inside the aerated raw material Mg. The aerated raw material Mg can be supplied into the subdivision mixing unit 30.
Accordingly, the aerated raw material Mg can be supplied into the subdivision mixing unit 30 in a state where the bubbles B are dispersed and retained in a wide range of the aerated raw material Mg. While being subdivided, the subdivided bubbles B can be evenly dispersed throughout the aerated raw material M.

In addition, since the gas G is contained in the raw material M by the gas jet nozzle 3 before being boosted by the boost pump 4, the raw material supply path is not required even if the pressure of the gas G ejected from the gas jet nozzle 3 is increased. The gas M can be contained in the raw material M by the gas ejection nozzle 3 only by making the pressure slightly higher than the pressure in 5.
Therefore, even if the pressure of the gas G is lowered while being sent from the gas supply source 2 to the gas ejection nozzle 3 by sending the gas G to the gas ejection nozzle 3 through the sterilization filter, the gas ejection nozzle 3 supplies the raw material M to the raw material M. Gas G can be contained.
In addition, when a nitrogen gas cylinder is used as the gas supply source 2, it is not necessary to use a high-pressure (for example, 5 MPa) cylinder, and a means such as a compressor for boosting the gas G is not required. Incidentally, when the pressure of the gas G is increased using a compressor and sent to the gas ejection nozzle 3, an oil mist separator is provided downstream of the compressor in order to maintain the hygiene of the gas G. In addition, when the gas G is pressurized by the compressor and contained by the gas ejection nozzle 3 with respect to the raw material M boosted by the boosting pump 4, an expensive one that can be discharged at a higher pressure is used as the compressor. It is necessary to use it.

As shown in FIGS. 3 to 5, the subdivision mixing unit 30 includes a plurality of narrow subdivision processing paths 33 that can flow by bending the aerated raw material Mg at a plurality of locations.
In this embodiment, the sub-mixing unit 30 includes a stator 34 as a cylindrical outer member, and an inner member disposed in the stator 34 with an outer peripheral surface spaced from an inner peripheral surface of the stator 34. And a rotor 35.
On the inner peripheral surface of the stator 34, a plurality of rows of annular outer protrusion rows 34 </ b> L are arranged in the axial direction in a plurality of teeth-like outer protrusions 34 p protruding inward in the radial direction. It is provided at intervals.
Further, on the outer peripheral surface of the rotor 35, a plurality of rows of annular inner projection rows 35L, in which a plurality of tooth-like inner projections 35p projecting radially outward, are arranged at intervals in the circumferential direction, one by one. The outer protrusions 34L are provided between the outer protrusions 34L with a space therebetween, and the inner protrusions 35p are provided to be spaced apart from each of the outer protrusions 34p in the circumferential direction.
Specifically, in a state where the rotor 35 is stopped at a predetermined rotation phase (the rotation phases in which the inner protrusions 35p alternate with the outer protrusions 34p in the circumferential direction), the direction orthogonal to the axis of the rotor 35 In view, a plurality of outer protrusions 34p and a plurality of inner protrusions 35p are arranged in a staggered pattern.
Incidentally, the shape of each of the tooth-shaped outer protrusion 34p and the tooth-shaped inner protrusion 35p is wider than the depth (the length in the direction along the axis of the stator 34 or the rotor 35) (the circumferential direction of the stator 34 or the rotor 35). The length in the direction along (1) is a longer flat prismatic shape.

A plurality of subdivision processing paths 33 are formed between the stator 34 and the rotor 35 by a plurality of rows of outer projection rows 34L and a plurality of rows of inner projection rows 35L.
For example, in a state where the rotor 35 is in a predetermined rotational phase (a rotational phase in which each inner protrusion 35p alternates with each outer protrusion 34p in the circumferential direction), a plurality of rows of outer protrusion rows 34L and a plurality of rows of inner protrusion rows 35L A large number of subdivision processing paths 33 are connected in a mesh pattern and formed so as to join and branch at a number of locations.

The submixing unit 30 will be described. As shown in FIGS. 3 to 5, the stator 34 has a substantially cylindrical shape in which the cross-sectional shape of the inner peripheral surface (the cross-sectional shape in a plane orthogonal to the axis) is a circle. A tapered receiving cylinder 36 having a smaller diameter at the tip is connected to one end thereof, the other end is closed, and a rotor 35 described later is supported in a cantilevered manner at the closed end.
The open end of the receiving cylinder 36 is used as a receiving port 31, and a delivery port 32 is formed at the end of the peripheral wall of the stator 34 opposite to the receiving port 31, via the receiving port 31 and the sending port 32. The subdivision mixing unit 30 is provided in the raw material supply path 5.

The rotor 35 has a cylindrical shape with both ends closed, and the rotation shaft 37 of the cylindrical rotor 35 is pivotally supported by the closed end of the stator 34 so that the rotor 35 rotates concentrically with the stator 34. The cantilever is supported freely.
The projecting end of the rotating shaft 37 from the stator 34 is connected to the subdivision mixing motor 38 and the rotor 35 is driven and rotated by the subdivision mixing motor 38.

According to said subdivision mixing part 30, as shown below, the aeration raw material Mg can be subdivided and remixed, and the bubbles B contained in the aeration raw material Mg can be subdivided.
That is, when the flowable aerated raw material Mg is supplied to the receiving port 31 with the rotor 35 being driven and rotated, the aerated raw material Mg flows between the stator 34 and the rotor 35.
Then, when the aerated raw material Mg flows out from the inner protrusion 35p of the rotor 35 in the rotating state, it collides with the outer protrusion 34p of the stationary stator 34 and undergoes a shearing action, and the outer protrusion 34p of the stator 34 in the stationary state. When it flows out from the space, it collides with the inner protrusion 35p of the rotor 35 in a rotating state and repeatedly receives a shearing action, and flows through a number of subdivision processing paths 33 between the stator 34 and the rotor 35 while repeating merging and dividing. To do.
Therefore, since the aerated raw material Mg is subdivided very effectively and remixed, the bubbles B contained in the aerated raw material Mg are subdivided very effectively, and the entire area in the aerated raw material Mg is expanded. Evenly distributed.

  As shown in FIG. 1, the boosting pump 4 is provided in the raw material supply path 5 so as to act on the delivery port 32 of the subdivision mixing unit 30 and pressurize and discharge the sucked aerated raw material Mg. Incidentally, for example, a plunger pump is used as the boosting pump 4.

  As shown in FIGS. 6 and 7, the stirring / cooling unit 40 can be driven and rotated by a cylindrical cylinder 45 whose both ends are closed by a receiving-side lid 43 and a sending-side lid 44, and a stirring motor (not shown). A cylindrical agitating rotor 46 disposed in the cylinder 45 in a state of being rotated, a triangular cylindrical triangular rotor 47 disposed in the agitating rotor 46 in a state of being rotatably supported, and an outer peripheral surface of the agitating rotor 46. A plurality of scrapers 48 provided so as to be swingable around a swing axis along the axial direction, a cylindrical refrigerant jacket 49 covering the outer periphery of the cylinder 45, and the like. Incidentally, as shown in FIG. 7, the cross-sectional shape of the triangular rotor 47 is a substantially equilateral triangular shape having three rounded corners, and the triangular rotor 47 has three corners with a stirring rotor 46. The stirring rotor 46 is disposed so as to be rotatable in the vicinity of the inner peripheral surface.

As shown in FIG. 6, the cylinder 45 and the refrigerant jacket 49 are supported by the receiving side frame 50 and the sending side frame 51.
In other words, the receiving side frame 50 is provided with a mounting port 50a through which the cylinder 45 can be inserted, and the sending side frame 51 is also provided with a mounting port 51a through which the cylinder 45 can be inserted.
One end of the cylinder 45 is inserted into the mounting port 50 a of the receiving side frame 50, and the other end is inserted into the mounting port 51 a of the sending side frame 51, and a refrigerant jacket 49 disposed outside the cylinder 45. One end of the cylinder 45 is fixed to the receiving side frame 50 and the other end is fixed to the sending side frame 51, so that the refrigerant jacket 49 surrounding the cylinder 45 and the outer periphery thereof is supported by the receiving side frame 50 and the sending side frame 51. ing.
As shown in FIGS. 6 and 7, a refrigerant supply port 52 is provided at the lower part of the refrigerant jacket 49 on the receiving side frame 50 side so as to communicate with the refrigerant jacket 49, and the delivery side frame 51 in the refrigerant jacket 49 is provided. A refrigerant discharge port 53 is provided in the upper part on the side so as to communicate with the refrigerant jacket 49.

As shown in FIG. 6, in order to rotatably support the triangular rotor 47, a shaft support recess 47a is provided at one end of the triangular rotor 47, and a shaft portion 47b is provided at the other end.
The receiving side lid 43 is fixed to the receiving side frame 50 in a state in which one end of the cylinder 45 is closed, and the receiving side lid 43 is provided with a receiving port 41 at the upper part thereof so as to communicate with the cylinder 45. In addition, a shaft support through-hole 43 a is provided concentrically with the cylinder 45.
The rotating shaft 54 is rotatably supported by the shaft support through-hole 43a of the receiving side lid body 43. An agitator motor (not shown) is connected to the end of the rotating shaft 54 outside the cylinder, and a shaft that is fitted in the shaft support recess 47 a of the triangular rotor 47 is located in the portion of the rotating shaft 54 that is located in the cylinder 45. A portion 54a is projected.
The delivery port side cover body 44 is fixed to the delivery side frame 51 in a state where the other end of the cylinder 45 is closed, and the delivery port 42 communicates with the inside of the cylinder 45 at the lower part of the delivery side cover body 44. In addition, a shaft support recess 44 a is provided concentrically with the cylinder 45.
The triangular rotor 47 is supported at its one end shaft support recess 47 a by the shaft portion 54 a of the rotary shaft 54, and the other end shaft portion 47 b is at the shaft support recess 44 a of the delivery side lid 44. The triangular rotor 47 is disposed in the stirring rotor 46 so as to be rotatable independently of the stirring rotor 46.

As shown in FIGS. 6 and 7, the stirring rotor 46 is formed with a plurality of flow holes 46 a penetrating in and out of the cylinder in a state dispersed in the circumferential direction and the longitudinal direction.
The stirring rotor 46 is provided in a state where one end is fixed to the rotary shaft 54 and the other end is rotatably supported by the shaft portion 47b of the triangular rotor 47, and the stirring rotor 46 is driven and rotated by the stirring motor. It is the composition which becomes.
In this embodiment, 24 scrapers 48 are provided on the outer circumferential surface of the agitating rotor 46 in such a manner that six rows arranged at equal intervals in the longitudinal direction are arranged at four intervals at equal intervals in the circumferential direction.

Although illustration is omitted, a refrigeration apparatus is provided for cooling the cylinder 45, and the refrigerant jacket 49 is provided so as to function as an evaporator in the refrigeration apparatus.
That is, the refrigerant liquid depressurized by the expansion valve is supplied from the refrigerant supply port 52 to the refrigerant jacket 49, and the refrigerant vapor that has evaporated and evaporated in the refrigerant jacket 49 is sent from the refrigerant discharge port 53 to the compressor. The refrigerant jacket 49 is incorporated into the refrigerant circuit.

According to the agitation cooling unit 40, the aerated raw material Mg in a fluid state is cooled and solidified while being agitated as follows.
That is, when the agitation motor (not shown) is operated, the agitation rotor 46 is driven to rotate (counterclockwise direction in FIG. 7), and the plurality of scrapers 48 agitate while the tips abut against the inner surface of the cylinder 45 by centrifugal force. It is rotated integrally with the rotor 46.
On the other hand, even if the agitation rotor 46 is driven to rotate, the triangular rotor 47 is not driven to rotate integrally with the agitation rotor 46 but can be rotated independently.
When the refrigerant is supplied to the refrigerant jacket 49 by operating the refrigeration apparatus, the refrigerant takes the heat of vaporization through the cylinder 45 in the refrigerant jacket 49 and evaporates, so that the cylinder 45 is cooled.

The fluidized raw material Mg supplied from the receiving port 41 into the cylinder 45 is cooled from the portion in contact with the inner peripheral surface of the cylinder 45 to increase its viscosity and adhere to the inner peripheral surface of the cylinder 45. The aerated raw material Mg adhering to the inner peripheral surface of the cylinder 45 is scraped off by the scraper 48 that rotates together with the stirring rotor 46 and enters the stirring rotor 46 through the flow hole 46a of the stirring rotor 46. Then, it is placed on the triangular rotor 47.
The triangular rotor 47 rotates when the equilibrium state shifts due to the loading of the aerated raw material Mg, and the aerated raw material Mg placed on the triangular rotor 47 goes out of the stirring rotor 46 through the flow hole 46a of the stirring rotor 46. Then, it comes into contact with the inner peripheral surface of the cylinder 45 again and is cooled to increase the viscosity, and adheres to the inner peripheral surface of the cylinder 45.
As described above, the fluidized raw material Mg supplied into the cylinder 45 comes into contact with the inner peripheral surface of the cylinder 45 and is cooled and adhered to the inner peripheral surface of the cylinder 45, or the scraper 48 allows the While being scraped off from the inner peripheral surface, it is sent toward the delivery port 42 and solidified while being stirred.
Then, the bubble-containing solid fat food F is sent from the outlet 42 to the fat food delivery path 6.

Using the oil / fat food production system configured as described above, the following method for producing a bubble-containing solid oil / fat food can be executed.
That is, the feed pump 1 feeds the raw material M containing oil and fat that has been heated to flow, and the gas jet nozzle 3 causes the raw material M sent from the feed pump 1 to contain the gas G.
The gas injection nozzle 3 contains the gas G and is in a fluid state. The submerged mixing section 30 subdivides and remixes the gas containing raw material Mg, and subdivides the bubbles B contained in the gas containing raw material Mg. The pressure-increasing pump 4 increases the pressure of the aerated raw material Mg delivered from the subdivision mixing unit 30 and supplies it to the stirring and cooling unit 40.
The aerated raw material Mg subdivided and remixed in the subdivision mixing unit 30 by the stirring cooling unit 40 is cooled and solidified while stirring.

In other words, the subdivided mixing unit 30 can subdivide the bubbles B in the aerated raw material Mg and evenly disperse them throughout the entire area of the aerated raw material Mg. The small bubbles B that are not easily separated from each other are difficult to be integrated, so that the small bubbles B are difficult to be large, and the state in which the small bubbles B are dispersed in the aerated raw material Mg is maintained.
Then, the aerated raw material Mg in which the bubbles B are subdivided and uniformly dispersed is supplied from the sub-mixing unit 30 to the stirring and cooling unit 40, so that the sub-mixing unit 30 reaches the stirring and cooling unit 40. While cooling in the passage or while stirring in the stirring and cooling unit 40, it is difficult for the bubbles B to escape from the aerated raw material Mg. Therefore, the aerated raw material Mg is cooled and solidified while the bubbles B are sufficiently retained. can do.
As a result, it is possible to produce a bubble-containing solid fat food having a high overrun value and having the bubbles B dispersed uniformly.

Next, before supplying the aerated raw material Mg containing the bubbles B by the gas ejection nozzle 3 to the stirring and cooling unit 40, by subdividing the bubbles B contained in the aerated raw material Mg by the subdivision mixing unit 30, The result of the verification test that verified that the overrun value can be increased will be described.
In this verification test, the aeration raw material Mg containing the bubbles B by the gas ejection nozzle 3 is supplied to the stirring cooling unit 40 by subdividing the bubbles B contained in the aeration raw material Mg through the subdivision mixing unit 30. In the case (hereinafter, may be described as being remixed), and in the case of supplying the aerated raw material Mg containing the bubbles B by the gas ejection nozzle 3 to the stirring and cooling unit 40 without going through the subdivision mixing unit 30 (hereinafter referred to as “remixing”). , The overrun value may be compared. Incidentally, in this verification test, margarine was used as the raw material M, and nitrogen gas was used as the gas G.

The conditions of the verification test are as follows.
-Viscosity and temperature of the raw material M sent out from the heating storage part 20: About 65 cP, 40 degreeC
-Flow rate of flowable raw material M delivered by the delivery pump 1: about 1000 liters / h
・ Flow rate of gas G: about 500 liters / h
-Feeding pressure of the raw material M by the pump 1 for delivery: 0.16 Mpa (with remixing), 0.18 to 0.20 MPa (without remixing)
-Supply pressure of gas G from the gas ejection nozzle 3: 0.17 MPa (with remixing), 0.19 to 0.21 MPa (without remixing)
-Delivery (discharge) pressure of the aerated raw material Mg by the pressurizing pump 4: 1.9 MPa (with remixing), 1.5 to 1.8 MPa (without remixing)
-Temperature of the bubble-containing solid fat food delivered from the stirring and cooling unit 40: 10.4 ° C (with remixing), 11.5 ° C (without remixing)
The number of rotations of the rotor 35 in the subdivision mixing unit 30: 1800 rpm

The overrun value of the bubble-containing solid oil / fat food delivered from the stirring and cooling unit 40 was 46% when remixing was performed, and 3.5% when no remixing was performed. In addition, these overrun values are average values at the time of sampling the bubble-containing solid fat food F ten times each.
By this verification test, before supplying the aerated raw material Mg to the stirring and cooling unit 40, it is subdivided by the subdivision mixing unit 30 and remixed, and the bubbles B contained in the aerated raw material Mg are subdivided. It was found that the run value can be increased.

[Another embodiment]
Next, another embodiment will be described.
(A) The specific structure of the subdivision mixing part 30 is not limited to the structure demonstrated in said embodiment.
(A-1) When the subdivision mixing unit 30 is configured with a plurality of narrow subdivision processing paths 33, a plurality of outer projection rows 34L and inner members 35 provided in the outer member 34 as in the above embodiment. However, the present invention is not limited to the case where a plurality of narrow subdivision processing paths 33 are formed by the plurality of inner projection rows 35 </ b> L provided in the above. For example, a plurality of narrow grooves that are bent at a plurality of locations may be formed in parallel on a block-shaped processing path forming member, and a plurality of narrow subdivided processing paths 33 may be configured by the plurality of narrow grooves.
(A-2) When the subdivision mixing unit 30 is configured to include a plurality of narrow subdivision processing paths 33, outer protrusions 34p respectively provided to the outer member 34 and the inner member 35 in order to form a plurality of subdivision processing paths 33, The shape of the inner protrusion 35p is not limited to the tooth shape as in the above embodiment, and may be a rod shape such as a cylinder.
(A-3) When the subdivision mixing unit 30 is configured by the outer member 34 and the inner member 35 as in the above embodiment, in the above embodiment, either one of the outer member 34 and the inner member 34 (the above-mentioned In the embodiment, the case where the rotor 35) as the inner member is driven and rotated is exemplified, but both the outer member 34 and the inner member 35 may be provided in a fixed state.
In this case, the cross-sectional shapes of the inner peripheral surface of the outer member 34 and the outer peripheral surface of the inner member 35 are not limited to circles.
(A-4) When the subdivision mixing part 30 is comprised by the outer member 34 and the inner member 35 like said embodiment, it flows through the cross-sectional area of each of the inner peripheral surface of the outer member 34, and the outer peripheral surface of the inner member 35. You may comprise so that it may become narrow gradually toward the lower side of a direction.
(A-5) In the pipe body in which the aerated raw material Mg flows, the blade or screw provided with a plurality of blades is driven and rotated to subdivide and remix the aerated raw material Mg, You may comprise the subdivision mixing part 30 by the braid | blade and the braid | blade or screw which is driven and rotated within the pipe | tube body.

(B) In the above embodiment, the booster pump 4 is provided between the subdivision mixing unit 30 and the stirring cooling unit 40 in the raw material supply path 5 .

(C) The number of the ejection holes 3b provided to be dispersed in the circumferential direction in the gas ejection nozzle 3 is not limited to the two exemplified in the above embodiment, and may be three or more. In addition, the ejection holes 3 b may be provided in a plurality of rows along the longitudinal direction of the gas ejection nozzle 3.

( D ) The specific example of the raw material M is not limited to the margarine exemplified in the above embodiment, and various oils and fats that become fluid when heated and solidify when cooled from the fluid state. For example, butter can be used. Moreover, what contains raw materials other than fats and oils, such as a honey, besides the thing only of fats and oils can be used.
Specific examples of the gas G are not limited to the nitrogen gas exemplified in the above embodiment, and various gases such as an inert gas and air other than the nitrogen gas can be used. A mixture of seed gases can also be used.

  As described above, it is possible to provide a production system for a bubble-containing solid fat food that can increase the overrun value and can evenly disperse bubbles, and a method for producing the bubble-containing solid fat food.

1 Pump for delivery 3 Gas ejection nozzle (aeration means)
3b Injection hole 4 Booster pump 5 Raw material supply path
9 Subdivision side tube
20 Heat storage part 30 Subdivision mixing part (subdivision mixing means)
31 Receiving port 33 Subdivision processing path 34 Stator (outer member)
34p Outer protrusion 34L Outer protrusion row 35 Rotor (inner member)
35p Inner protrusion 35L Inner protrusion row 40 Stirring cooling part (cooling means)
B Bubbles F Bubble-containing solid fat food G Gas M Raw material Mg Air-containing raw material

Claims (6)

A heating storage section for storing a raw material containing fats and oils and raising the temperature so as to be flowable, a delivery pump for delivering the raw material heated to be flowable by the heating storage section, and a temperature rise sent from the delivery pump An aeration means for containing a gas in the raw material in a state, and a gas-containing raw material that is in a fluidized state and in a temperature-raised state by the aeration means is subdivided and remixed to A sub-mixing means for subdividing the bubbles contained in the raw material, and an agitation cooling unit that cools and solidifies the aerated raw material that contains the sub-divided air bubbles in the sub-mixing means while stirring, and a booster pump supplying the stirred cooling portion is provided by boosting the aerated material in the Atsushi Nobori is sent from the subdivision mixing means,
A production system for a bubble-containing solid fat food in which the delivery pressure of the heated raw material by the delivery pump is set smaller than the discharge pressure of the aerated raw material in the elevated temperature state by the boosting pump. . The aerating means is constituted by a cylindrical gas ejection nozzle having a distal end closed and a plurality of ejection holes for ejecting gas radially outwardly distributed in the circumferential direction on the distal end side of the cylindrical wall;
The gas ejection nozzle, the raw material supply path that material in the Atsushi Nobori is sent from the delivery pump to flow, according to claim 1 which is disposed in a posture that has along the longitudinal direction in the material flow direction A production system for air-containing solid fat foods. The production system for a bubble-containing solid fat / oil food according to claim 1 or 2 , wherein the subdividing and mixing means includes a plurality of narrow subdividing paths capable of flowing by bending an aerated raw material at a plurality of locations. . The subdivision mixing means includes a cylindrical outer member, and an inner member disposed in the outer member with an outer peripheral surface spaced from an inner peripheral surface of the outer member,
A plurality of rod-like or tooth-like outer protrusions protruding radially inward on the inner peripheral surface of the outer member are arranged in the axial direction in the circumferential direction. Provided at intervals,
On the outer peripheral surface of the inner member, a plurality of rod-like or tooth-like inner protrusions protruding radially outward are arranged at intervals in the circumferential direction. It is provided with a space in the axial direction in a form in which each inner protrusion is staggered in the circumferential direction with each outer protrusion, and enters between the protrusion rows with a distance from the outer protrusion row,
The bubble-containing solid oil and fat according to claim 3 , wherein the plurality of subdivided processing paths are formed by the plurality of outer protrusion rows and the plurality of inner protrusion rows between the outer member and the inner member. Food production system. The subdivision mixing unit communicates with the subdivision mixing unit side tube having a cylindrical end closed at one end along the raw material flow direction in the raw material supply path, and the subdivision mixing unit side tube through a receiving port. A subdivision mixing unit having a plurality of narrow subdivision processing paths that are connected and flowable by bending the aerated raw material at a plurality of locations;
The gas ejection nozzle is inserted into the subdivision mixing unit side tube from the closed end of the subdivision mixing unit side tube so as to be substantially concentric with the subdivision mixing unit side tube, and is arranged in the longitudinal direction of the gas injection nozzle. The manufacturing system of the bubble containing solid fat food of Claim 2 which ejects the said gas to a radial direction with respect to the moving aeration raw material. The raw material that contains oil and fat and that has been heated so as to be flowable in the heating storage unit is sent out by a delivery pump, and the raw material that is sent out from the delivery pump and is in a raised temperature state contains gas by an aeration means, The aerated raw material that is in a fluid state and in a heated state containing gas by the aeration means is subdivided and remixed by the subdivision mixing means to subdivide the bubbles contained in the aerated raw material, and the subdivision When the aerated raw material containing bubbles subdivided by the mixing means is heated by a pressure- increasing pump and cooled and solidified with stirring by a stirring cooling unit , the temperature rising by the sending pump A method for producing a bubble-containing solid fat food in which the delivery pressure of the raw material is set to be smaller than the discharge pressure of the aerated raw material in the elevated temperature state by the boosting pump .

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