JP6386958B2 - Stirrer - Google Patents

Description

  The present invention relates to a stirring device that stirs an object to be processed such as a slurry or a granular material.

  Conventionally, for example, a stirring device of Patent Document 1 below has been proposed. The stirring device of Patent Document 1 includes an inverted conical cylinder, a rotary blade accommodated in the cylinder, and a shaft body that supports the rotary blade and rotates it at the radial center of the rotary blade. The rotor blades are arranged from the upper part to the lower part of the trunk. In the stirring device of Patent Document 1, the rotary blade is configured so that the rotary blade rotates around the shaft body in order to mix the object to be processed put into the body.

JP 2011-117711 A

  However, in the above-described conventional stirring apparatus, the stirring blade and the object to be processed may rotate together depending on the object to be processed at the lower part of the stirring blade having a low peripheral speed, and the object to be processed may not be processed.

  Then, this invention aims at provision of the stirring apparatus which can stir reliably to-be-processed object.

The stirrer of the present invention includes an inverted conical cylinder into which an object to be processed is charged, a shaft body arranged in the vertical direction at the radial center of the cylinder, and an inner peripheral surface of the cylinder accommodated in the cylinder. A rotating blade that rotates around the shaft body along with an inner stirring auxiliary member that assists the stirring of the workpiece by the rotation of the rotating blade by relative rotation with the rotating blade, and the inner stirring auxiliary member is an inner stirring auxiliary member. The inner stirring assisting part is disposed on the shaft body side which is the inner side of the body with respect to the rotor blades, and the rotor blades are provided near the lower part of the body and have continuous ribbon blades, and the ribbon blade spirals. In the middle of the shape, an outer stirrer auxiliary member that rotates with the ribbon blade along the reverse cone inclination direction of the body is provided, and the ribbon blade is supported by the shaft body via the outer stirrer auxiliary member and the lateral connecting rod , The stirring auxiliary member is attached to the lower part of the barrel, and its inner stirring auxiliary part is It is disposed inside the cylinder relative to the carbon blades, and has a lower ribbon blade, characterized in that extending in the vertical direction.

In the above configuration, since the inner stirring auxiliary portion of the inner stirring auxiliary member is disposed on the shaft body side that is the inner side of the drum with respect to the rotary blade, the workpiece is stirred even inside the rotary blade, and the drum is reversed The entire object to be processed is surely agitated by the members of both the rotary blade and the inner stirring auxiliary part, including the object to be treated that tends to stay in the lower part due to the conical shape. Further, in the above configuration, since the ribbon blade can have a space inside, it is easy to move the object to be processed at the center of the ribbon blade. However, since the space occupies a large proportion, It is hard to stir well. However, by providing the inner stirring portion of the inner stirring member inside the ribbon blade, the object to be processed existing inside the ribbon blade is reliably stirred. Further, according to the above configuration, the outer stirring auxiliary portion of the outer stirring auxiliary member rotates together with the ribbon blade to stir the workpiece, and the inner stirring auxiliary portion rotates relative to the ribbon blade and the ribbon blade. Thus, the object to be processed inside the ribbon blade is agitated.

A stirring device of the present invention, the inner stirred auxiliary member may employ a configuration that is supported by and fixed to the non rotating the lower end of the cylinder.

  In the above configuration, the inner agitation assisting unit may be stopped with respect to the rotation of the rotating blades, may be rotated in the same direction at a different speed from the rotating blades, or may be rotated. If the inner stirring auxiliary part does not rotate in the same direction at the same speed as the rotary blade, the relative relationship between both the rotary blade and the inner stirring auxiliary part may be used. The workpiece is reliably agitated by the rotation.

  In the above configuration, since the inside of the ribbon blade can be a space, it is easy to move the workpiece to the lower part at the center of the ribbon blade. Hard to stir. However, by providing the inner stirring portion of the inner stirring member inside the ribbon blade, the object to be processed existing inside the ribbon blade is reliably stirred.

  According to the above configuration, the outer agitation auxiliary part of the outer agitation auxiliary member rotates together with the ribbon blade to stir the workpiece, and the rotation of the ribbon wing and the inner agitation auxiliary part that rotates relative to the ribbon wing The workpiece inside the ribbon blade is agitated.

  In the stirring device of the present invention, the inner stirring auxiliary portion of the stirring auxiliary member is arranged on the shaft body side which is the inner side of the drum with respect to the rotary blade, so that the object to be processed is stirred even inside the rotary blade, Because of the inverted conical shape, the entire object to be processed can be reliably agitated by both the rotary blade and the inner stirring auxiliary part, including the object to be treated which tends to stay in the lower part.

It is a front view showing the whole structure of the stirring apparatus which concerns on 1st embodiment of this invention. FIG. FIG. 3 is a schematic arrow view taken along line AA in FIG. 2. FIG. 3 is a schematic arrow view taken along line BB in FIG. 2. FIG. 6 is a schematic arrow view taken along the line D-D in FIG. 4. It is a front view of the state which attached the stirring auxiliary member to the ball valve. It is a front view showing the whole structure of the stirring apparatus which concerns on 2nd embodiment of this invention. It is a principal part top view of the stirring apparatus which concerns on other embodiment.

  Hereinafter, a stirring device according to an embodiment of the present invention will be described with reference to the drawings. First. A stirring device 1 according to a first embodiment of the present invention will be described with reference to FIGS. 1 to 6. As shown in FIG. 1 and FIG. 2, the stirring device 1 includes a barrel 3 into which an object to be treated 2 is charged, and a shaft body (also referred to as a stirring shaft) arranged along the vertical direction at the radial center of the barrel 3. ) 4, a drive unit (not shown) that rotates the shaft body 4 about its axis 4 a, and a rotating blade (stirring) that is housed in the body 3 and rotates about the shaft body 4 along the inner peripheral surface of the body 3 Blade) 6 and an inner stirring assisting member 7 for assisting the stirring of the workpiece 2 by the rotation of the rotating blade 6.

  Examples of the workpiece 2 include slurry and powder. The body 3 includes a body body 8 having a lower end portion that is an opening 9 and formed in an inverted conical shape, and a ball valve (in this case, a tank ball valve is used) 10 installed to close the opening 9. With. The body 8 is provided with an outer shell 3A that surrounds from the top to the bottom. The outer shell 3 </ b> A is disposed with respect to the side wall of the trunk body 8 via a predetermined gap (space). The gap of the radial width between the outer shell 3A and the main body 8 is a substantially constant amount, and a space 11 is formed outside the outer surface (radially outward) of the upper surface of the main body 8 by the outer shell 3A. Yes. The space 11 is supplied with a heating medium (for example, steam or hot water) for heating the workpiece 2 put into the trunk body 8.

  A supply port 12 and a discharge port 13 for supplying or discharging the heat medium are connected to the upper end and the lower end of the outer shell 3A. In this case, the supply port portion 12 (steam inlet) is disposed at the upper end portion, and the discharge port portion 13 (steam outlet) is disposed at the lower end portion. The outer shell 3 </ b> A, the space 11, the supply port portion 12, and the discharge port portion 13 are configured as a means for drying the workpiece 2.

  The upper surface of the trunk body 8 is a lid portion 14 that gently protrudes upward. The lid portion 14 is provided with a loading port portion 15 for loading the workpiece 2 into the trunk body 8. An insertion hole 16 through which the shaft body 4 is inserted from above the upper surface is formed in the central portion in the radial direction of the lid body portion 14. As shown in FIG. 6, the ball valve 10 includes a ball portion 17 that is switched depending on whether the workpiece 2 is sealed or dropped, and includes a drive operation portion 18 that drives the ball portion 17.

  As shown in FIGS. 1, 2, and 5, the shaft body 4 has a tandem shape that gradually decreases in diameter toward the lower side, and a thermometer 19 that detects the temperature of the workpiece 2 is disposed at the lower end. Has been. The upper end portion of the shaft body 4 is inserted through the insertion hole 16, and a lid body 20 that seals the inside of the trunk body 8 in a state where the shaft body 4 is inserted into the insertion hole 16 is provided. A drive unit for rotating the shaft body 4 around its axis 4a is attached.

  The rotary blade 6 includes a paddle blade 21 and a ribbon blade 22. As shown in FIG. 1 and FIG. 4, among these, the ribbon blade 22 is disposed in the lower part in the trunk body 8, and the paddle blade 21 is disposed above the ribbon blade 22. In the present embodiment, one ribbon blade 22 is provided.

  The paddle blades 21 are intermittently arranged on the spiral, and are arranged at predetermined intervals in the direction along the shaft body 4 (the vertical distance is set shorter as it moves downward) and the shaft body 4. It is arranged in a radial position centered on the. The outermost diameter portion of each paddle blade 21 is attached to the shaft body 4 via a lateral coupling rod (also referred to as an “arm”) 23 so as to be disposed very close to the inner peripheral surface of the trunk body 8. . The horizontal connecting rod 23 is arranged in a substantially horizontal direction, and also serves as a stirring function for the workpiece 2 by rotating together with the shaft body 4. The proximal end of the lateral connecting rod 23 is attached to the shaft body 4, and the distal end of the lateral connecting rod 23 is attached to the center in the circumferential direction of the paddle blade 21. Each paddle blade 21 is disposed so as to be inclined in a direction (see an arrow in FIG. 1) in which the workpiece 2 is moved upward within the trunk body 8 in accordance with the rotation direction of the shaft body 4.

  The ribbon blade 22 is formed in a screw shape and is disposed further below the lowest paddle blade 21. Unlike the paddle blade 21, the ribbon blade 22 is formed in a continuous spiral shape. The ribbon blade 22 is formed so as to have a smaller diameter toward the lower side thereof, and reaches the lowest position of the trunk body 8. The thermometer 19 is disposed inside (inward in the radial direction) the ribbon blade 22.

  The outermost diameter portion of the ribbon blade 22 is disposed very close to the inner peripheral surface of the trunk body 8. The ribbon blades 22 are not attached to the shaft body 4 but are inclined to connect the lateral connecting rods 23 that support the lower paddle blades 21 and the midway portion of the ribbon blades 22 in the spiral direction (of the trunk body 8). The horizontal connection rod 23 is supported by an inclined connection rod 24 and a vertical connection rod 24A (both also referred to as “support”). The inclined connecting rod 24 corresponds to an outer stirring auxiliary member. In the present embodiment, an inclined inclined connecting rod and a vertical vertical connecting rod are provided. However, all of them may be inclined connecting rods, or all may be vertical connecting rods.

  As shown in FIGS. 2 and 3, a plurality of inner stirring assisting members 7 are provided. Any of the inner agitation assisting members 7 is set so as not to rotate around the center line 3a of the trunk 3 (which is also the axis of the shaft body 4). That is, the inner stirring assisting member 7 does not rotate around the center line 3 a, and thus rotates relative to the rotary blade 6. In this embodiment, the inner stirring auxiliary member 7 is provided as a pair along the radial direction. One inner stirring auxiliary member 7 is a first inner stirring auxiliary member 7A, and the first inner stirring auxiliary member 7A is formed in a bowl shape. The first inner stirring assisting member 7A includes a first stirring assisting portion 71 and a base end portion (lower end portion) 71A.

  The base end portion 71A is fixed to the tank bottom flange 27 around the opening 26 exposing the upper portion of the ball 25 of the ball valve 10, for example, by welding. The tank bottom flange 27 is formed on a conical surface 27a that is inclined upward toward the outside. The first agitation assisting portion 71 is formed integrally with the base end portion 71 </ b> A and is disposed along the center line 3 a of the body 3. The base end portion 71A is formed so as to be inclined inward as the upper portion thereof, and the first stirring auxiliary portion 71 is formed integrally with the upper end of the base end portion 71A.

  The other inner stirring assisting member 7 is a second inner stirring assisting member 7B, and the second inner stirring assisting member 7B includes a second stirring assisting portion 72 and a base end portion (lower end portion) 72A. The base end portion 72A is fixed to the tank bottom flange 27 of the ball valve 10 by welding, for example. The second agitation assisting part 72 is formed integrally with the base end part 72A, and as shown in FIG. 3, a plate-like shape having an inclined surface 72a inclined on one side surface (upstream in the direction of stirring of the workpiece 2). Is formed. The second agitation assisting part 72 is arranged along the center line 3 a of the trunk 3. The base end portion 72A is formed so as to incline inward as the upper portion thereof, and the first stirring auxiliary portion 71 is formed integrally with the upper end of the base end portion 72A.

  The first inner agitation assisting member 7A and the second inner agitation assisting member 7B are disposed so as to be separated from each other in the radial direction. The first agitation assisting part 71 of the first inner agitation assisting member 7A and the second agitation assisting part 72 of the second inner agitation assisting member 7B are arranged so as to be parallel to each other, and in the middle in the longitudinal direction (the middle part in the vertical direction) The ring-shaped connecting ring member 28 is firmly integrated.

  The first agitation assisting part 71 and the second agitation assisting part 72 are arranged inside the rotary blade, in this case, the ribbon blade 22 so as not to contact the ribbon blade 22. The upper end position of the first stirring auxiliary part 71 and the upper end position of the second stirring auxiliary part 72 are set to be different. That is, the upper end position of the first agitation assisting part 71 is set higher than the upper end position of the second agitation assisting part 72. Both the upper end position of the first stirring auxiliary portion 71 and the upper end position of the second stirring auxiliary portion 72 do not reach the height of the paddle blade 21 at the lowest position. The radial position of the first stirring assist part 71 and the radial position of the second stirring assist part 72 are set differently. That is, the radial position of the second agitation assisting part 72 is arranged closer to the shaft body 4 (thermometer 19) than the radial position of the first agitation assisting part 71. Further, the first agitation assisting part 71 and the second agitation assisting part 72 are arranged inside the inclined connecting rod 24, and the upper end position of the first agitation assisting part 71 and the upper end position of the second agitation assisting part 72 are A position corresponding to the middle of the inclined connecting rod 24 in the vertical direction is reached. That is, the entire inclined connecting rod 24 is used as the outer stirring portion.

  In the stirring device 1 having the above-described configuration, when the workpiece 2 (for example, slurry in this case) is introduced into the trunk body 8 from the inlet port 15 and the drive unit is driven, the trunk body 8 remains in a non-rotating state. 4 rotates (in the direction of the arrow in FIG. 1), and is connected to the shaft body 4 via a lateral coupling rod 23 and connected to the lateral coupling rod 23 via an inclined coupling rod 24. The ribbon blade 22 rotates around the shaft center 4 a together with the shaft body 4. Then, the workpiece 2 is agitated by the rotation of the paddle blade 21 and the ribbon blade 22 so as to rise inside the trunk body 8.

  On the other hand, when the heating medium is supplied from the supply port 12 into the space 11 and discharged from the discharge port 13, the object 2 in the trunk body 8 is heated and moisture (for example, Water, an organic solvent, etc.) are discharged as vapor from a discharge port (not shown) provided in the trunk body 8 and the object to be processed 2 is dried. In addition, the structure which takes in air from the nozzle of the apparatus upper part which is not shown in figure, and depressurize the inside of an apparatus is employ | adopted normally, and the to-be-processed object 2 is dried by making the inside of an apparatus the state near a vacuum.

  Incidentally, a ball valve 10 is disposed in the opening 9 of the trunk body 8. Further, the ribbon blades 22 of the rotary blades 6 are arranged in the lower part of the body 8 and the inside of the ribbon blades 22 is a space. In this environment, the processed object 2 is easily dropped to the ball valve 10 side.

  However, in this embodiment, the first stirring assist part 71 of the first inner stirring assisting member 7A and the second stirring assisting part 72 of the second inner stirring assisting member 7B are disposed inside the ribbon blade 22, The agitation assisting part 71 and the second agitation assisting part 72 are along the vertical direction and restrain the ribbon blade 22 from rotating around the axis 4a.

  By the way, as described above, even if the inner side of the ribbon blade 22 is a space, the workpiece 2 may be rotated with the ribbon blade 22 on the inner diameter side of the ribbon blade 22. However, even if such co-rotation occurs, the workpiece 2 is sufficiently stirred even on the inner diameter side of the ribbon blade 22 by providing the inner stirring auxiliary member as described above. In particular, when the rotational speed is low, the possibility of occurrence of rotation increases, but even in such a case, the workpiece 2 can be sufficiently stirred.

  In addition, the first stirring auxiliary portion 71 and the second stirring auxiliary portion 72 are at different radial distances from the shaft center 4a (shaft body 4), and the upper end position of the first stirring auxiliary portion 71 and the second stirring auxiliary portion 72 are. The first agitation assisting part 71 and the second agitation assisting part 72 have different radial cross-sectional shapes.

  As in the present embodiment, the first agitation assisting part 71 and the second agitation assisting part 72 are arranged at non-target positions with the shaft body 4 as the center, and the height and the cross-sectional shape of both are made different, thereby stirring. The property is greatly improved. For this reason, the to-be-processed object 2 in the internal diameter side of the ribbon blade | wing 22 can fully be stirred. In particular, the radial cross-sectional shape of the second stirring auxiliary portion 72 is formed in a plate shape having an inclined surface 72a inclined on one side surface, so that the workpiece 2 is spread upstream in the stirring flow direction. It is more excellent in agitation.

  In the present embodiment, the entire object to be processed 2 can be reliably stirred regardless of the position of the object to be processed 2 in the trunk body 8, so that the dryness (moisture content) of the object to be processed 2 is set. This can be achieved, and by opening the ball valve 10, the workpiece 2 can be smoothly discharged from the trunk body 8 to the outside. Further, the first stirring auxiliary portion 71 and the second stirring auxiliary portion 72 are integrated by the connecting ring member 28. However, since the connecting ring member 28 does not rotate around the axis 4a, the function as the stirring auxiliary portion. Have

  The present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention. In the above embodiment, the first stirring auxiliary part and the second stirring auxiliary part have a circular shape and the second stirring auxiliary part have a plate shape as the cross-sectional shapes of the first stirring auxiliary part and the second stirring auxiliary part. It is good also considering the cross-sectional shape of a stirring assistance part as the same shape.

  FIG. 7 shows a second embodiment. The second embodiment differs from the first embodiment in the configuration and arrangement position of the stirring assisting member. In the second embodiment, the stirring auxiliary portions of the plurality of inner stirring auxiliary members 73 and 74 are arranged on the inner peripheral surface of the trunk body 8 along the radial direction. The inner agitation assisting members 73 and 74 are disposed below the inner peripheral surface of the trunk body 8 so as to be spaced apart from each other in the circumferential direction of the trunk body 8 (for example, 180 °), and are displaced from each other in the vertical direction. . The base end portions of the inner stirring auxiliary members 73 and 74 are fixed to the inner peripheral surface of the trunk body 8.

  These inner stirring auxiliary members 73 and 74 may be rod-shaped, and are formed in a plate shape having an inclined surface with one side inclined so as to spread the workpiece 2 upstream in the flow direction of stirring. Also good. At least one of the plurality of inner agitation assisting members 73 and 74 is disposed further lower than the paddle blade 21 at the lowest position. Moreover, in each inner side stirring auxiliary member 73 and 74, the front end side located inside the paddle blade 21 is specified as an auxiliary stirring part. With this configuration, it is possible to agitate the workpiece 2 at the lower part in the trunk body 8.

  The inner agitation assisting member is disposed below the paddle blade 21 disposed at the upper position (for example, the middle portion in the vertical direction) in addition to the lower position relative to the paddle blade 21 at the lowest position. In this way, the stirrability of the workpiece 2 can be further improved.

  Moreover, as shown in FIG. 8, you may provide three inner side stirring auxiliary members 75,76,77 spaced apart in the circumferential direction. And it is preferable to set the upper end positions of these three inner stirring auxiliary members 75, 76, 77 to be different. In addition, it is preferable to vary the amount of protrusion outward in the radial direction with respect to the shaft 4. By comprising in this way, disorder is easy to produce in the stirring direction of the to-be-processed object 2, and stirring property improves. In the embodiment of FIG. 8, the connecting ring member 28 has a distorted circular shape in plan view. By comprising in this way, it is easy to produce disorder in the stirring direction of the to-be-processed object 2, and stirring property improves. Furthermore, the inner stirring auxiliary members 75, 76, 77 are fixed to the conical surface 27a of the tank bottom flange 27 as a tripod structure and connected by the connecting ring member 28, whereby the inner stirring auxiliary members 75, 76, 77 are firmly held. The

  Although the inner stirring auxiliary members 75 and 76 are equidistant from the shaft 4, all of the inner stirring auxiliary members 75, 76, and 77 may be arranged at different distances from the shaft 4 in order to promote stirring. .

  Furthermore, although not shown in the drawings, the present invention has a configuration in which a rotating shaft is fitted around the shaft body 4 via a bearing seal so that the rotating shaft can rotate about the axis 4a. The present invention can also be applied to the stirring device 1 having a configuration in which the blades 22 are attached.

  In each said embodiment, the structure which the stirring assistance member (stirring assistance part) has stopped with respect to rotation of the rotary blade 6 was described. However, the stirring assisting member (stirring assisting part) may be configured to rotate in the same direction at different speeds relative to the rotation of the rotating blades, or may be configured to rotate in the opposite direction to the rotating blades. In any case, if the stirring assisting member does not rotate in the same direction at the same speed as the rotating blade, the workpiece can be reliably stirred by the relative rotation of both the rotating blade and the stirring assisting member.

  As such a configuration, for example, the central axis is a double tube composed of an outer cylinder and an inner cylinder, the tip of the inner cylinder is projected from the tip of the outer cylinder, and a paddle blade is installed on the outer cylinder side, This can also be achieved by installing an inner stirring assist member at the inner cylinder end and rotating the outer cylinder and the inner cylinder at different speeds.

  In each of the above embodiments, the slurry containing moisture has been described as the workpiece 2. For this reason, a heat medium was supplied to the space 11 between the trunk body 8 and the outer shell 3A to dry the slurry. However, the stirring device 1 can also be used for mixing and stirring liquids, mixing and stirring powders, and the like. In such a case, it is not always necessary to supply the heat medium to the space 11 between the trunk body 8 and the outer shell 3A.

  Moreover, you may make it supply a refrigerant | coolant (heating medium with temperature lower than the to-be-processed object 2) as needed. Moreover, although the front-end | tip of the horizontal direction connecting rod 23 is attached to the center of the circumferential direction of the paddle blade 21, it is not limited to this, The paddle blade 21 is set to the front direction with respect to the advancing direction with respect to the horizontal direction connecting rod 23, Alternatively, it may be attached with its position shifted backward.

  In addition, in each said embodiment, although discharge of the to-be-processed object 2 was discharged | emitted from the lowest position of the trunk | drum main body 8, it can also be set as the structure discharged | emitted from the middle part of the trunk | drum main body 8 in the up-down direction. Specifically, a discharge port is provided on the side surface of the lower end portion of the trunk body 8, and the workpiece 2 is discharged from the side surface portion. In this case, the lowermost position of the trunk body 8 is configured so that the container itself is completely sealed or is closed by a flange or the like.

  Further, in the embodiment shown in FIG. 1, the thermometer 19 is provided at the tip portion of the shaft body 4, but the workpiece 2 in the inner space of the ribbon blade 22 is assumed to be in accordance with the movement of the ribbon blade 22. If it is provided, the workpiece 2 will not be sufficiently stirred. In such a case, depending on the type and temperature of the workpiece 2, the temperature of the workpiece 2 may not be accurately measured with the thermometer 19 provided at the tip of the shaft body 4. However, in the present invention, since the inner space of the stirring blade (ribbon blade 22 in FIG. 1) is sufficiently stirred by providing the inner stirring auxiliary member 7, the temperature of the workpiece 2 is measured more accurately. be able to.

  In the embodiment shown in FIG. 1, the inner agitation assisting member 7 is installed upward from the lower part of the apparatus, and the lower end part thereof is welded to the tank bottom flange 27. For this reason, the inner stirring auxiliary member 7 can be easily attached to and detached from the stirring device 1 by removing the tank bottom flange 27.

  Moreover, although the 1st stirring auxiliary member 7A and the 2nd stirring auxiliary member 7B differ in the length of an up-down direction, they are not limited to this, You may make it the same length. Further, a thermometer may be installed with the inside of the inner stirring assisting member 7 as a cavity, and dry air or the like may be supplied inside the stirring device. Furthermore, although the container upper part is comprised by the cover body part which becomes convex gradually toward upper direction, it is not limited to this, Flat plate shape may be sufficient.

  DESCRIPTION OF SYMBOLS 1 ... Stirring apparatus, 2 ... To-be-processed object, 3 ... Body, 3a ... Center line, 4 ... Shaft body, 4a ... Axis center, 6 ... Rotary blade, 7 ... Inner stirring auxiliary member, 7A ... First stirring auxiliary member, 7B ... Second stirring auxiliary member, 8 ... Cylinder body, 21 ... Paddle blade, 22 ... Ribbon blade, 23 ... Horizontal connecting rod, 24 ... Inclined connecting rod, 28 ... Connecting ring member, 71 ... First stirring auxiliary portion, 71A ... proximal end portion, 72 ... second stirring auxiliary portion, 72a ... inclined surface, 72A ... proximal end portion

Claims (2)

An inverted-conical barrel into which workpieces are thrown in, a shaft body arranged in the vertical direction at the center in the radial direction of the barrel, and a rotation around the shaft body along the inner peripheral surface of the barrel A rotating blade, and an inner stirring auxiliary member that assists the stirring of the workpiece by the rotation of the rotating blade by relative rotation with the rotating blade,
The inner stirring assisting member includes an inner stirring assisting part, and the inner stirring assisting part is disposed on the shaft body side that is the inner side of the trunk with respect to the rotary blade,
The rotary wing is provided with a ribbon wing that is spirally continuous near the lower part of the trunk,
In the middle of the spiral shape of the ribbon wing, an outer stirrer auxiliary member that rotates with the ribbon wing along the reverse cone inclination direction of the trunk is provided.
The ribbon blade is supported by the shaft body via the outer stirring auxiliary member and the lateral connecting rod ,
The inner stirring auxiliary member is attached to the lower part of the cylinder, the inner stirring auxiliary part is disposed on the inner side of the cylinder with respect to the ribbon wing , and extends in the vertical direction from the lower side of the ribbon wing . Inner stirred auxiliary member is stirring device according to claim 1, wherein are supported and fixed to the non rotating the lower end of the cylinder.

Images