JP3225431U - Crusher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pulverizing device capable of stably and reliably pulverizing hard plant material such as rice husk. SOLUTION: A main body in which a first chamber 21 having an inlet 25, a second chamber 22, and a third chamber 23 and a fourth chamber 24 each having an outlet 26 are divided by a partition plate 30 having a through hole 31. The case 2 is arranged in each of the first to fourth chambers through which the shaft 7 is rotatably provided by driving a motor through the first to fourth chambers, and is connected to the same shaft. , A rotating member 5, and a screen member 6 having an aperture through which pulverized material having a predetermined size passes is provided on an outer peripheral portion of the rotating member in the third and fourth chambers. The diameter of the member is larger than the rotation member of the third chamber, the diameter of the rotation member of the third chamber is larger than the rotation member of the second chamber, and the diameter of the rotation member of the second chamber is set larger than the rotation member of the first chamber. ing. [Selection diagram] Fig. 1

Description

  The present invention relates to a pulverizing device capable of finely pulverizing a plant material or the like.

  At present, environmental pollution due to waste plastic caused by disposal of used plastic trays has become a global problem.

  To deal with the problem of waste plastic, the development of biodegradable plastic trays, the development of biotray using crushed material of plant material such as rice husk, straw, bamboo, etc. A biotray (for example, see Patent Literature 1) manufactured by kneading the above-mentioned crushed plant material and a binder containing a biodegradable plastic has been developed.

  On the other hand, when producing the crushed material of the plant-based material, for example, when trying to pulverize the rice hull, the rice hull contains about 18% of very hard vegetable silicon, The use of a grinding-type pulverizing apparatus as shown in Patent Document 2 which has been generally used in the past has caused problems such as insufficient pulverization and failure of the pulverizing apparatus.

Japanese Patent Application Laid-Open No. 2000-229313 JP 2003-103189 A

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a pulverizing device capable of stably and reliably pulverizing hard plant-based materials such as rice husks.

The present invention has been made to solve the above technical problem, and has the following features.
First, the crushing device of the present invention has a main body case in which a first chamber having an inlet, a second chamber, a third chamber having an outlet, and a fourth chamber each having a partition having a through hole. And a shaft provided so as to be rotatable by driving a motor through the first to fourth chambers, and arranged in each of the first to fourth chambers and connected to the same shaft. , A rotating member having a plurality of hammer members provided so as to protrude from an outer periphery of the disk, and a predetermined size is provided on an outer peripheral portion of the rotating member in the third chamber and the fourth chamber. A screen member having an aperture through which the crushed material passes is provided, wherein the diameter of the rotating member of the fourth chamber is larger than that of the rotating member of the third chamber, and the diameter of the rotating member of the third chamber is The rotation of the second chamber is larger than the rotation member of the second chamber. Wherein the diameter of the wood is set to be larger than the rotating member of the first chamber.
Secondly, in the crushing device according to the first aspect of the present invention, it is preferable that a foreign substance accommodating portion is provided below the first chamber and the second chamber.
Third, in the crushing device of the first or second invention, it is preferable that the rotating member is provided with a hammer member sandwiched between two disks.
Fourth, in the crushing device of the first to third inventions, the rotating member may be provided at a boundary between the first chamber and the second chamber and at a boundary between the second chamber and the third chamber. preferable.

  According to the crushing device of the present invention, hard plant-based materials such as rice hulls can be crushed stably and reliably.

FIG. 2 is a schematic cross-sectional view showing an embodiment of the crushing device of the present invention. FIG. 2 is a cross-sectional view of a boundary between a first chamber and a second chamber in the crushing device of the embodiment of FIG. 1. It is a boundary sectional view of the 3rd room and the 4th room in the crushing device of an embodiment of Drawing 1. FIG. 2 is a plan view of a rotating member of the embodiment of FIG. 1, wherein (A) is a rotating member of a first chamber, (B) is a rotating member of a second chamber, and (C) is a plan view of a rotating member of a third chamber. It is. It is a partial plan view of the screen member provided in the 3rd room and the 4th room in a crusher.

  Hereinafter, embodiments of the crushing device of the present invention will be described in detail with reference to the drawings. FIG. 1 is a schematic sectional view showing an embodiment of the pulverizing device of the present invention, FIG. 2 is a sectional sectional view of a first chamber and a second chamber in FIG. 1, and FIG. It is a boundary sectional view of a room and the 4th room.

  As shown in FIG. 1, the crushing apparatus 1 of the present embodiment includes a first chamber 21 having an inlet 25, a second chamber 22, and a third chamber 23 and a fourth chamber 24 each having an outlet 26, The main body case 2 is divided by a partition plate 30 having a through hole 31. Further, a shaft 7 rotatably provided through the first chamber 21 to the fourth chamber 24 is provided, and each of the first chamber 21 to the fourth chamber 24 is connected to the shaft 7. The rotating member 5 including the disk 40 and the hammer member 41 is arranged.

  In the crushing device 1 of the present embodiment, the rotating members 5 provided in the first chamber 21 to the fourth chamber 24 in the main body case 2 are provided with the shaft 7 inserted through the center of the disk 40. . Further, the shaft 7 is supported by a bearing 71, a pulley is provided at one end thereof, and a belt is hung on the rotation shaft of the pulley and the motor. The rotation of the motor causes the shaft 7 to rotate and is fixed to the shaft 7. Thus, the rotating member 5 disposed in each of the first chamber 21 to the fourth chamber 24 rotates.

  The rotating member 5 provided in each of the first chamber 21 to the fourth chamber 24 includes a disk 40 and a hammer member 41, as shown in FIGS. A plurality of plates 40 are radially fixed by bolts so as to partially protrude from the outer periphery. In addition, the rotating member 5 fixes a plurality of hammer members 41 to one disk 40 like the rotating members 5 (51) and (52) of the first chamber 21 and the second chamber 22 in FIG. The configuration may be such that the hammer member 41 is sandwiched between the two disks 40 in a plurality of rows as in the rotating members 5 (53) and (54) of the third chamber 23 and the fourth chamber 24. Further, a plurality of rotating members 5 can be provided in parallel like the rotating member 5 (52) of the second chamber 22 shown in FIG. Thereby, the material to be pulverized to a predetermined particle size can be introduced into the third chamber 23 and the fourth chamber 24.

  The number of hammers can be appropriately determined according to the specifications of the crushing device 1. However, as in the present embodiment, the configuration is such that six hammer members 41 are arranged in two to four rows for each rotating member 5. be able to. The diameter of the rotating member 5, that is, the diameter of the disk 40, is larger than the rotating member 5 (53) of the third chamber 23 because the diameter of the rotating member 5 (54) of the fourth chamber 24 is larger than that of the third chamber 23. The diameter of the member 5 (53) is set larger than the rotation member 5 (52) of the second chamber 22, and the diameter of the rotation member 5 (52) of the second chamber 22 is set larger than the rotation member 5 (51) of the first chamber 21. Have been.

  According to the above configuration, during rotation, a difference occurs in the moving speed of the outer periphery of each rotating member 5 of the first chamber 21 to the fourth chamber 24, and accordingly, a different wind is generated in each chamber. Then, a moving wind is generated from the first chamber 21 to the fourth chamber 24 due to a difference in air pressure due to the difference in the air volume. Specifically, the air pressure on the fourth chamber 24 side becomes lower than that on the first chamber 21 side, and the material to be ground introduced from the input port 25 provided in the first chamber 21 is pulverized toward the fourth chamber 24. While moving.

  The material to be pulverized to be introduced into the pulverizer 1 is not particularly limited as long as it is a material that can be finely pulverized by the hammer member 41. Materials that cannot be obtained, for example, hard plant-based materials to be crushed, such as rice husks, wood chips, and bamboo, can be suitably crushed.

  The first to fourth chambers 21 to 24 of the crushing device 1 of the present invention are divided by partition plates 30, and each partition plate 30 has a through hole 31 having a size through which the crushed material to be crushed passes. Is provided. The size of the through hole 31 can be appropriately set according to the pulverizing characteristics of the material to be pulverized, and is not particularly limited. A size of about 程度 16 mm is considered.

  Further, in the crushing apparatus 1 of the present embodiment, the rotating member 5 can be provided at the boundary between the first chamber 21 and the second chamber 22 and at the boundary between the second chamber 22 and the third chamber 23. Thereby, the rotating member 5 itself becomes a partition at the position where the partition plate 30 is provided, and more efficient pulverization is possible.

  Further, a screen member having an aperture of a size through which a crushed material having a predetermined size passes is provided on the outer peripheral portion of the rotating member 5 (53) of the third chamber 23 and the rotating member 5 (54) of the fourth chamber 24. 6 are provided. The aperture of the screen member 6 can be set in accordance with the particle size of the finally obtained pulverized material. For example, in the case of pulverizing rice hulls, usually about 1.0 to 1.5 mm is considered. You.

  Further, the crushing device 1 of the present invention can be provided with a foreign substance storage portion 8 below the first chamber 21 and the second chamber 22. For example, in the case where foreign matter having a higher specific gravity than the material to be ground such as metal, stone, or glass is mixed in the introduced material to be ground, if the foreign matter passes through the first chamber 21 and thereafter, the partition plate 30 or There is a possibility that the hammer, the screen member 6 or the like may be damaged, or a fire may occur inside the apparatus. In consideration of such a problem, by providing the foreign substance storage portion 8 below the first chamber 21 and the second chamber 22, foreign substances having a specific gravity larger than the material to be ground can be stored in the third chamber 23 and the fourth chamber 24. Before being introduced, it can be dropped down and collected in the foreign substance storage unit 8. When the amount of air flowing from the first chamber 21 to the fourth chamber 24 is large, foreign matter and the like may be introduced into the third and fourth chambers 23 and 24 without falling to the foreign matter storage unit 8. Therefore, it is considered that the number of rotations of the rotating member 5 is controlled and adjusted so as to obtain an appropriate air volume.

  Further, the residue storage section 9 can be provided in the lower part of the fourth chamber 24. By providing the residue accommodating section 9, for example, foreign matter introduced into the third chamber 23 and the fourth chamber 24 without being collected in the foreign substance accommodating section 8 provided below the first chamber 21 and the second chamber 22, In addition, the material to be pulverized that has not been completely pulverized can be collected without remaining inside the screen member 6. Thereby, even when continuous pulverization is performed, continuous pulverization can be performed efficiently without causing clogging of the screen member 6 and the like.

  According to the crushing device 1 of the present invention having the above configuration, even if a hard vegetable material such as rice hulls is used, the material to be crushed is introduced from the inlet 25 of the first chamber 21 to be crushed by the generated wind. The material is stably and reliably pulverized while being moved to the second chamber 22, the third chamber 23, and the fourth chamber 24, and the pulverized material having a target particle diameter is discharged from the outlet 26 of the third chamber 23 and the fourth chamber 24. Can be obtained by discharging.

Hereinafter, the mechanism of the pulverization using the pulverizer 1 of the embodiment shown in FIG. 1 will be described in detail. First, the motor is driven in advance, and the rotating members 5 (51) to (54) disposed on the shaft 7 and each of the first to fourth chambers 21 and 24 via a belt wrapped around the rotating shaft of the motor. ) Is rotated. At this time, the number of rotations of the shaft 7, that is, the number of rotations of the rotating members 5 (51) to (54) is appropriately set in consideration of the amount of generated air, the type of material to be pulverized, and the like. For example, in the case of grinding rice hulls, it is considered that the rice husks are rotated at 2500 rpm as a standard rotation speed. In addition, in the crushing apparatus 1 of the embodiment shown in FIG. 1, when the rotating member 5 is rotated under the above conditions, it has been confirmed that an appropriate generated air volume is 15 to 25 m ³ / min. For example, a foreign substance or the like having a large specific gravity can be dropped downward and collected in the foreign substance collection unit 8, and the material to be ground can be smoothly moved from the first chamber 21 to the fourth chamber 24 while being crushed. .

  Next, in this state, the material to be pulverized is charged from the charging port 25 provided in the first chamber 21. Then, the material to be crushed moves to the rotating member 5 (51) in the first chamber 21 due to the wind generated by the rotation of the rotating member 5, collides with the hammer member 41 of the rotating member 5 (51), and is crushed. At this time, foreign matter having a relatively large specific gravity mixed into the material to be ground is stored in the foreign matter storage portion 8 provided below the first chamber 21.

  The material to be pulverized in the first chamber 21 passes through the through hole 31 of the partition plate 30 provided between the first chamber 21 and the second chamber 22 and is introduced into the second chamber 22, and The rotating member 5 (52) disposed in the inside 22 collides with the hammer member 41 and is further finely crushed.

  The material to be pulverized in the second chamber 22 passes through the through hole 31 of the partition plate 30 provided between the second chamber 22 and the third chamber 23, and is introduced into the third chamber 23. The rotating member 5 (53) disposed in the inside 23 collides with the hammer member 41 and is further finely crushed. The pulverized product having a predetermined particle size passes through a screen member 6 having a predetermined opening provided on the outer peripheral portion of the rotating member 5 of the third chamber 23, and is provided at a lower portion of the third chamber 23. It is discharged from the discharge port 26 provided.

  The material to be pulverized that has not been pulverized to the predetermined particle size in the third chamber 23 passes through the through-hole 31 of the partition plate 30 provided between the third chamber 23 and the fourth chamber 24 and passes through the fourth chamber 24. Into the rotary chamber 5 (54) disposed in the fourth chamber 24, and is finely crushed. After passing through a screen member 6 having a predetermined aperture provided on an outer peripheral portion of the rotating member 5, the rotating member 5 is discharged from a discharge port 26 provided at a lower portion of the fourth chamber 24. Here, since the particle size of the material to be ground is determined by the aperture of the screen member 6 provided in the third chamber 23 and the fourth chamber 24, the type and hardness of the material to be ground and the target particle size By selectively using the screen member 6 according to the above, a pulverized product (powder) having a desired particle size can be obtained.

  As a result, only the crushed material having a predetermined particle size that has passed through the screen member 6 provided on the outer peripheral portion of the rotating member 5 in the third chamber 23 and the fourth chamber 24 is discharged from the discharge port 26, and the plant system having the desired particle size is obtained. Powder can be obtained. The residue that has not been pulverized even in the fourth chamber 24 is collected in the residue storage unit 9 provided in the fourth chamber 24.

  According to the crushing device of the present invention having the above configuration, even a hard vegetable material such as rice hulls can be crushed stably and reliably.

DESCRIPTION OF SYMBOLS 1 Crusher 2 Main body case 21 1st chamber 22 2nd chamber 23 3rd chamber 24 4th chamber 25 Input port 26 Outlet 30 Partition plate 31 Through hole 40 Disk 41 Hammer member 5 Rotating member 6 Screen member 7 Shaft 71 Bearing 8 Foreign substance storage section 9 Residue storage section

Claims (4)

A first chamber having an inlet, a second chamber, a third chamber having an outlet, and a fourth chamber having an outlet each divided by a partition plate having a through hole;
A shaft that is inserted through the first chamber through the fourth chamber and that is rotatably provided by driving a motor;
A rotating member disposed in each of the first to fourth chambers and connected to the same shaft, the rotating member having a disk and a plurality of hammer members provided to protrude from the outer periphery of the disk; ,
A screen member having an aperture through which a crushed material having a predetermined size passes is provided on an outer peripheral portion of the rotating member in the third chamber and the fourth chamber,
The diameter of the rotating member in the fourth chamber is larger than the rotating member in the third chamber, the diameter of the rotating member in the third chamber is larger than the rotating member in the second chamber, and the diameter of the rotating member in the second chamber is larger. A crusher, wherein a diameter of the rotating member is set to be larger than that of the rotating member in the first chamber.   The crusher according to claim 1, wherein a foreign substance storage unit is provided below the first chamber and the second chamber.   The crusher according to claim 1, wherein the rotating member is provided with a hammer member sandwiched between two disks. The crusher according to any one of claims 1 to 3, wherein the rotating member is provided at a boundary between the first chamber and the second chamber and a boundary between the second chamber and the third chamber. .

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