JP4444196B2 - Liquid egg shell removal device - Google Patents

Description

  The present invention relates to an apparatus for removing eggshells in the production of liquid eggs.

2. Description of the Related Art Conventionally, a so-called shell trap has been provided as an apparatus for removing eggshell fragments mixed in the content of an egg after splitting in a liquid egg manufacturing process. In this shell trap, the flow path is bent up and down with respect to the flow direction of the liquid egg, the turbulent flow is caused in the liquid egg, and the mixed eggshell is separated from the egg contents and settled. In Patrice search,
IC = (A23B?) AND FK = (Ciel trap)
I tried to search with the search formula, but the search result was 0 for both patents and utility models.
In addition, there is the following Patent Document 1 as a prior art that refers to the removal of eggshells in the manufacturing process of liquid eggs.
JP 2001-346508 A (paragraph numbers 0002, 0009, 0011 and 0016)

Due to the viscosity of the liquid egg, it is difficult to remove the fragments of the mixed eggshell. In particular, in the case of a product that is packaged in an incomplete state with a mixed state of egg yolk and egg white so as to keep the state of the original egg as much as possible after cleavage, mixing of the egg content is insufficient and mixing It is supposed that the eggshell is more difficult to separate.
In view of the above-mentioned problems, the present invention provides a first method for separating and removing the eggshell from the liquid egg more efficiently by giving the liquid egg a bent flow path in the left-right direction in addition to the vertical direction. It is an issue.
In addition to the first problem described above, the second object of the present invention is to make it difficult to mix the separated and removed eggshell again.

Furthermore, in addition to the first or second problem described above, the present invention makes it easy to expose the eggshell attached to the lower side of the egg and remove it by allowing the liquid egg to flow down while being inverted upside down. This is the third problem.
In addition to the third problem described above, the present invention makes it difficult to mix the removed eggshell again.

(1) 1st invention In order to solve said 1st subject, 1st invention among this invention is the inflow port 11 into which the liquid egg 50 flows in, the outflow port 17 into which the liquid egg 50 flows out, and these. A liquid egg shell removal device 10 having a flow path 12 having a downward slope toward the outlet 17 between
The flow path 12 is bent a plurality of times to the left and right with respect to the flow direction,
On the bottom surface 22 of the flow path, at least one of the plurality of bent portions, a pocket 30 which is a fitting recess opened upward is arranged in series along the flow path,
The upstream side of the flow path 12 is characterized in that the flow depth is deeper and the flow width is narrower than the downstream side.

  That is, the liquid egg 50 flowing in from the inflow port 11 flows down toward the outflow port 17 according to the downward inclination of the flow path 12. First, in the upstream portion near the inflow port 11, the width of the flow path 12 is narrow and the depth is deep. As a result, the flow velocity is increased in this upstream portion. In the meantime, the flow path 12 is bent a plurality of times in the left-right direction, so that a turbulent flow in the left-right direction occurs. In addition, at least one pocket 30 is provided for each bent portion. In the pocket 30, once the flow is lowered toward the bottom surface 31, the turbulent flow in the vertical direction is also generated by turning upward at the edge 32 on the downstream side. Thereby, in the upstream portion, a large spiral flow is generated by combining the turbulent flow in the vertical and horizontal directions and the high flow velocity, and the pieces of eggshell attached to or held by the liquid egg 50 are efficiently separated. It will be. Further, the eggshell separated at the edge 32 on the downstream side of the pocket is caught and does not flow any further downstream, so that it is removed from the liquid egg 50.

On the other hand, in the downstream portion close to the outlet 17, the width of the flow path 12 is wide and the depth is shallow. As a result, the flow velocity is reduced in this downstream portion, so that the eggshell fragments are easily caught at the edge 32 on the downstream side of the pocket.
(2) Second invention In order to solve the second problem, the second invention of the present invention is characterized in that, in addition to the features of the first invention, a groove is formed in the bottom surface of the edge 32 on the downstream side of the pocket. It is characterized in that a hollow 33 is provided.
That is, by providing a groove-like depression 33 on the bottom surface of the edge 32 on the downstream side of the pocket, the eggshell that has been caught by the downstream side of the pocket 30 can be easily collected in the depression 33 and returned to the liquid egg 50 again. It becomes difficult to mix.

(3) Third invention In order to solve the third problem, the third invention of the present invention is characterized in that, in addition to the features of the first or second invention, the most downstream portion of the flow path 12 is A plurality of horizontal planes 40 are connected in a stepped manner while forming a step 41, forming a downward slope as a whole,
A protrusion 42 protruding upward is provided over the entire length of the edge facing the step 41 of each of the horizontal planes 40.
That is, the liquid egg 50 that has been bent left and right in the flow path 12 and has been applied with a vertical flow by the pockets 30 flows down the stepped step 41 at the most downstream portion and reaches the outlet 17. As described above, the protrusion 42 is provided on the edge of the horizontal surface 40 of each step 41. Then, the liquid egg 50 flowing down the step 41 is caught by the protrusion 42 and falls to the horizontal surface 40 of the lower step while being turned upside down. As a result, pieces of eggshell adhering to the lower surface of the liquid egg 50 are exposed to the surface, and thus are more easily removed. Further, a piece of eggshell is caught on the ridge 42 and removed.

(4) Fourth Invention In order to solve the fourth problem, the fourth invention of the present invention is characterized in that, in addition to the features of the third invention, the ridge 42 is provided upstream of the ridge 42. A groove-like depression 43 is provided over the entire length of 42.
That is, the eggshell fragments that are removed by being caught by the protrusions 42 on the horizontal surface 40 of the step 41 are more likely to accumulate in the depressions 43 and are unlikely to be mixed into the liquid egg 50 again.

Since this invention is comprised as mentioned above, there exists an effect described below.
That is, according to the first aspect of the present invention, the egg shell is more efficiently separated and removed from the liquid egg by bending the liquid egg in the vertical direction in addition to the vertical direction. Is possible.
Moreover, according to 2nd invention among this invention, in addition to the said 1st effect, mixing of the separated eggshell again becomes difficult.
Furthermore, according to the third invention of the present invention, in addition to the first or second effect, the eggshell attached to the lower side of the egg is exposed to the surface by causing the liquid egg to flow while being inverted upside down. This can be easily removed.

  Further, according to the fourth aspect of the present invention, in addition to the third effect, it becomes difficult to mix the removed eggshell again.

(1) First Embodiment Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.
FIG. 1 is a plan view showing a liquid eggshell removing apparatus 10 according to the present embodiment.
The raw eggs cleaned and sterilized according to a conventional method are divided by an egg breaking machine, and the egg contents are separated as a liquid egg 50. At this point, most of the eggshell is to be removed, but some eggshell is unavoidably attached or mixed into the liquid egg 50. The liquid egg 50 reaches the inflow port 11 of the liquid egg shell removal device 10 through the transport path, and then flows down the flow path 12 toward the outflow port 17.

In the liquid egg shell removal apparatus 10, the flow path 12 through which the liquid egg 50 flows is composed of an upstream portion 13, a midstream portion 14, a downstream portion 15, and a staircase portion 16. Moreover, as shown in the II-II cross section (FIG. 2) of FIG. 1, it has the downward inclination from the left side to the right side in the positional relationship of FIG. Further, as shown in the III-III cross section (FIG. 3), IV-IV cross section (FIG. 4), and VV cross section (FIG. 5) in FIG. The midstream portion 14 slopes downward from the back to the front (FIG. 4), and the downstream portion 15 slopes downward again from the front to the back (FIG. 5). .
In the upstream portion 13, the midstream portion 14, and the downstream portion 15, a left partition 20 that blocks the left side and a right partition 21 that blocks the right side of the liquid egg 50 flow down alternately. As a result, the flow of the liquid egg 50 is bent to the left and right. Furthermore, each time the left partition 20 or the right partition 21 appears, the bottom surface 22 of the flow path is provided with a pocket 30 that is a rectangular recess that is horizontally long in the flow-down direction. The pockets 30 are provided at four locations in each of the upstream portion 13, the midstream portion 14, and the downstream portion 15, and are provided at a total of 12 locations, but these are arranged in series along the flow path 12. ing. When the liquid egg 50 flowing down the bottom 22 of the flow path reaches the pocket 30, it once descends toward the bottom surface 31 (see FIG. 2) and then rises again at the downstream edge 32. A flow will be given. Such descending and rising of the liquid egg 50 is repeated every time the left and right bends are bent by the left partition 20 or the right partition 21. A complex turbulent flow is formed by the combination of such left and right bending and vertical movement, whereby the eggshell adhering to or mixed in the liquid egg 50 is easily separated.

  Further, the width (flow width) of the flow path 12 becomes wider from the upstream portion 13 to the downstream portion 15 through the middle flow portion 14. As a result, as shown in FIG. 2, the flow of the liquid egg 50 becomes shallower from the upstream portion 13 to the downstream portion 15 through the midstream portion 14. As a result, in the upstream portion 13, the flow velocity of the liquid egg 50 in the flow path 12 is deeper and the flow width is narrower than that in the middle flow portion 14 and the downstream portion 15, so that the flow velocity is faster. In addition, the flow velocity of the flow path of the liquid egg 50 is shallower and wider than that of the upstream portion 13 in the middle flow portion 14, and thus the flow velocity is slower. Since the depth is deep and the flow width is narrow, the flow velocity is faster. Further, in the downstream portion 15, the flow depth of the liquid egg 50 is shallower and the flow width is wider than the upstream portion 13 and the middle flow portion 14, so that the flow velocity is slower.

Further, as shown in FIGS. 3 to 5, the liquid egg 50 flowing down the upstream portion 13, the midstream portion 14, and the downstream portion 15 moves downstream from the pocket when it rises from the bottom surface 31 of the pocket to the bottom surface 22 of the flow path. Collides with side edge 32. This collision further forms a turbulent flow in the liquid egg 50, and the separated eggshell comes into contact with the edge 32 to prevent the flow down. Thus, the eggshell is separated from the liquid egg 50.
The liquid egg 50 that has passed through the downstream portion 15 reaches the staircase portion 16 corresponding to the most downstream portion of the flow path 12. As shown in the VI-VI cross section of FIG. 1 (FIG. 6), the staircase portion has a plurality of fan-shaped horizontal surfaces 40 connected in a staircase pattern while forming a plurality of steps 41, and is inclined downward as a whole. Furthermore, a ridge 42 is formed over the entire length of the edge facing the step 41 of each horizontal plane 40. That is, when the liquid egg 50 flows down the step 41, the liquid egg 50 once comes into contact with the ridge 42, and the top of the liquid egg 50 is inverted. As a result, the eggshell adhering to the lower side of the liquid egg 50 (that is, the eggshell sandwiched between the liquid egg 50 and the bottom surface 22 or the horizontal surface 40 of the flow path) is exposed to the surface, so that it is further separated. It becomes easy to be done. In addition, the separated eggshell comes into contact with the ridge 42 and is prevented from flowing down. Thus, the eggshell remaining so far is also separated from the liquid egg 50. The liquid egg 50 that has passed through the staircase portion 16 is transported to the next process via the outflow port 17.

(2) Second Embodiment Hereinafter, a second embodiment of the present invention will be described with reference to FIG. 1, FIG. 7, and FIG.
This embodiment is basically the same as the first embodiment. The first difference is that a recess 33 is formed on the bottom surface side of the downstream side edge 32 of each pocket, as shown in the III-III cross section of FIG. 1 (FIG. 7). As a result, the eggshell that has been brought into contact with the downstream side edge 32 of the pocket and prevented from flowing down settles in the depression 33, so that it becomes difficult to re-mix the eggshell from the liquid egg 50. Removal is more reliable. Such pocket recess 33 is provided not only in the upstream portion 13 but also in the midstream portion 14 and the downstream portion 15.

  Furthermore, as a second difference between the present embodiment and the first embodiment, as shown in the VI-VI cross section (FIG. 8) of FIG. The depression 43 is provided on the upstream side of the ridge. The depression 43 on the upstream side of the ridge, like the pocket depression 33 described above, sinks the eggshell that is in contact with the ridge 42 and prevented from flowing down, and this causes the eggshell to be mixed into the liquid egg 50 again. In addition to ensuring that the eggshell is removed from the liquid egg 50.

The liquid egg eggshell removal apparatus which concerns on the 1st or 2nd embodiment of this invention is shown with a top view. FIG. 2 is a cross-sectional view taken along the line II-II in FIG. 1 in the first embodiment of the present invention. FIG. 3 is a cross-sectional view taken along the line III-III in FIG. 1 in the first embodiment of the present invention. FIG. 4 is a cross-sectional view taken along the line IV-IV in FIG. 1 in the first embodiment of the present invention. 1 is a cross-sectional view taken along line VV in FIG. 1 in the first embodiment of the present invention. FIG. 1 is a cross-sectional view taken along the line VI-VI in FIG. 1 in the first embodiment of the present invention. FIG. 3 is a cross-sectional view taken along the line III-III in FIG. 1 in the second embodiment of the present invention. FIG. 6 is a cross-sectional view taken along the line VI-VI in FIG. 1 in the second embodiment of the present invention.

Explanation of symbols

10 Liquid egg shell removal device 11 Inlet 12 Channel
13 Upstream part 14 Middle stream part 15 Downstream part
16 Stairs 17 Outlet
20 Left partition 21 Right partition 22 Bottom of channel
30 Pocket 31 Bottom of pocket 32 Downstream edge of pocket
33 Pocket depression
40 Horizontal plane 41 Step 42 Projection
43 Indentation upstream of ridge
50 liquid eggs

Claims (4)

A liquid egg eggshell removing apparatus comprising an inlet into which liquid egg flows in, an outlet through which liquid egg flows out, and a flow path having a downward slope between the outlet and the outlet.
The flow path is bent a plurality of times to the left and right with respect to the flow-down direction,
On the bottom surface of the flow path, at least one of the plurality of bent portions, a pocket which is a fitting recess opened upward is arranged in series along the flow path,
The liquid egg eggshell removing apparatus characterized in that the upstream side of the flow path is formed deeper and narrower than the downstream side.   2. The liquid egg eggshell removing apparatus according to claim 1, wherein a groove-like depression is provided on the bottom surface of the edge on the downstream side of the pocket. The most downstream part of the flow path is a series of horizontal planes that form steps in a stepped manner, forming a downward slope as a whole,
The liquid egg eggshell removing device according to claim 1, wherein a protrusion protruding upward is provided over the entire length of the edge facing each step of each horizontal plane.   The liquid egg eggshell removing device according to claim 3, wherein a groove-like depression is provided on the upstream side of the ridge over the entire length of the ridge.

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