JPH08281136A - Chaff crushing device - Google Patents

Abstract

PURPOSE: To provide a chaff crushing device which is capable of preventing a pollution problem caused by the burning of chaff from occurring and producing chaff which can be recycled. CONSTITUTION: This chaff crushing device consists of a crushing part 1 equipped with a fixed blade and a rotary blade which crush chaff sucked through a suction port 5 in its center and discharge the crushed chaff from a discharge port 10, and a suction pipe 21 which connects the suction port 5 of the crushing part 1 to a chaff storage part 20. In addition, the device is equipped with a foreign matter removal part 22 which is provided at a region halfway through a suction pipe 21 and removes foreign matter such as pebbles contained in the chaff, a discharge pipe 11 which is connected to the discharge port 10 of the crushing part 1, and a powder accumulation part 60 which is connected to the discharge pipe 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a chaff crusher for crushing chaff.

[0002]

2. Description of the Related Art Conventionally, "rice husk" after removing rice from paddy has been rarely used and incinerated.

[0003]

However, there is a problem in that when the incineration process is performed, the smoke causes air pollution to cause pollution problems. As a result of earnest research on the reuse of rice husks, the present applicant has found that by finely pulverizing the rice husks, it can be mixed with wall materials of building materials or reused for rugs such as compost and barns. The invention was developed.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a chaff crusher in which the pollution problem caused by the incineration of chaff is prevented and the chaff can be reused. There is.

[0005]

A chaff crusher according to a first aspect of the present invention is provided with a fixed blade and a rotary blade, and crushes chaff sucked from a suction port at a central portion and discharged from a discharge port. And a suction pipe that connects the suction port of the crushing unit and the chaff storage unit, and a foreign matter removal unit that is provided in the middle of the suction pipe and that removes foreign substances such as pebbles contained in chaff. It is characterized by

A chaff crusher according to a second aspect of the present invention includes a fixed blade and a rotary blade, and a crushing unit for crushing the chaff sucked from the suction port at the center and discharging it from the discharge port; A suction pipe that connects the suction port and the chaff storage unit, a foreign matter removal unit that is provided in the middle of the suction pipe to remove foreign matter such as pebbles contained in chaff, and that is connected to the discharge port of the crushing unit. It is characterized in that it has a discharge pipe and a powder accumulating portion connected to this discharge pipe.

A third aspect of the present invention is characterized in that the powder accumulating portion includes a coarse particle accumulating portion and a fine particle accumulating portion.

[0008]

According to the first aspect of the invention, when the crushing unit is driven, the chaff of the chaff storage unit is sucked into the crushing unit through the suction pipe. On the way, pebbles heavier than chaff,
Iron pieces and the like are dropped and removed by the foreign matter removing unit. The chaff taken into the crushing unit collides with the rotary blade and the fixed blade and is crushed.

According to the second aspect of the present invention, when the crushing section is driven, the chaff of the chaff storage section is sucked into the crushing section through the suction pipe. On the way, small stones, iron pieces, etc., which are heavier than chaff, are dropped into the foreign matter removing unit and removed. The chaff taken into the crushing unit collides with the rotary blade and the fixed blade and is crushed. The crushed chaff is stored in the powder accumulation section.

According to the third aspect of the invention, the powder crushed by the crushing unit generates coarse powder having a large particle size and fine powder having a small particle size, both of which are carried by the air flow into the discharge pipe. Coarse grain powder having a large weight is accumulated in the coarse grain powder accumulating portion, and light fine grain powder is accumulated in the fine grain powder accumulating portion.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First Embodiment according to Claims 1 and 2 of the present invention
The embodiment will be described with reference to FIGS. First,
The crushing unit 1 will be described. The case 2 has a bowl shape with an open side surface, and a bowl-shaped cover 3 is attached so as to close the opening portion, whereby a cylindrical space portion 1a is formed inside. On the inner surface of the cover 3, a plurality of square fixed blades 4 are concentrically formed so as to project in three rows, for example. A suction port 5 is provided at the center.

A bearing 2a is provided at the center of the case 2, and a shaft 7 of a rotary disk 6 is rotatably supported by the bearing 2a. The turntable 6 is driven by a motor 8 via a pulley 8a and a belt 8b to rotate at high speed in the space 1a, and a plurality of rotary blades 9 are concentrically projected on the turntable 6. The rotary blades 9 have a fan-shaped segment shape, and are located in the middle of the fixed blades 4 and face each other. Further, when the side surfaces of the rotary blade 9 are connected, an arcuate shape extending outward from the center is formed. The number of rotations, the size, the number, etc. of the fixed blade 4 and the rotary blade 9 are appropriately selected according to the crushed grain size of the chaff, the suction negative pressure, and the like. A discharge port 10 is provided on the outer peripheral portion of the crushing unit 1, and a discharge pipe 11 is connected to the discharge port 10.

The suction pipe 21 connects the suction port 5 and the chaff storage portion 20, and is made of a vinyl pipe. The foreign matter removing unit 22 is composed of a T-shaped tube 23 interposed in the middle of the suction tube 21 and a box body 24 connected below the T-shaped tube 23. The drawer 24a for taking out is provided. And
It has airtightness as a whole when the drawer 24a is attached.

The powder accumulating section 60 is a cubic container, and an outlet 61 is provided below the inclined section 60a. The take-out port 61 is provided with a take-out valve 62 having a handle that can be operated from the side, and can be opened and closed. It should be noted that the observation window 6 is provided at a position above the inclined portion 60a.
3 is provided. Further, a filter 64 is attached inside and a fan 65 is attached outside. The powder accumulating unit 60 may use a large room as the powder accumulating unit 60 as it is.

FIG. 3 shows a second embodiment according to claim 2 of the present invention. The difference from the first embodiment is that, instead of the powder accumulating section 60, a coarse particle accumulating section 32 and a fine particle accumulating section 41 are provided. The difference will be described below. The discharge pipe 11 includes a first discharge pipe 11a connecting the discharge port 10 and the coarse-grained powder accumulating portion 32, and the coarse-grained powder accumulating portion 3
2 and the second discharge pipe 1 for connecting between the fine powder collecting portion 41
1b.

The particle size separation unit 25 is attached to the tip of the second discharge pipe 11b, and is composed of a plurality of oblique plates 25a arranged in parallel at intervals and conveyed and crushed. The flow velocity of chaff is changed to separate coarse particles.

The coarse-grained powder accumulating section 32 is a cubic container, and an outlet 33 is provided below the inclined section 32a. The take-out port 33 is provided with a take-out valve 34 provided with a handle that can be operated from the side and can be opened and closed. The coarse grain powder accumulating portion 32 is provided with a viewing window 35 at a position above the inclined portion 32a.

As shown in FIG. 4, the fine powder collecting section 41 is connected to the discharge pipe 11b on the downstream side of the particle size separating section 25. This is a cubic container, and an outlet 42 is provided below the inclined portion 41a. The take-out port 42 is provided with a take-out valve 43 having a handle that can be operated from the side, and can be opened and closed. A plurality of filter bags 44 are opened downward and suspended in the fine powder collecting portion 41. When passing through the filter bags 44, crushed powder is filtered, and air is exhausted from an exhaust port 45 at the upper end. It is released outdoors. Although not shown in the drawings, these filter bags 44
An appropriate vibrating means is provided to remove the crushed powder accumulated inside.

In addition, the exhaust port 4 is provided in the fine powder collecting portion 41.
A fan 46 is attached to the outside of 5. The fan 46 is not limited to the outside of the exhaust port 45, and may be provided between the particle size classification unit 25 and the fine particle accumulation unit 41. A bag 51 for accommodating the pulverized powder is attached to the take-out port 33 of the coarse-grained powder accumulating portion 32 and the take-out port 42 of the fine-grained powder accumulating portion 41.

Next, the operation of the above configuration will be described by taking the second embodiment as an example. First, the motor 8 of the crushing unit 1 is driven to rotate the plurality of rotary blades 9 at high speed, and further the fan 46 of the fine particle collecting unit 41 is rotated. Then, the inside of the crushing unit 1 becomes a negative pressure, and the husks of the chaff storage unit 20 are sucked into the crushing unit 1 through the suction pipe 21. On the way, pebbles heavier than chaff, iron pieces, etc.
Is dropped into the box 24 and removed. The chaff that has been sucked into the crushing unit 1 is urged by the rotary blade 9 and collides against the fixed blades 4 that are arranged facing each other to be crushed. In this pulverizing process, fine powder and relatively coarse powder are generated,
All of these are carried by the air flow from the discharge port 10 into the discharge pipe 11.

The crushed chaff is conveyed from the discharge pipe 11a to the upper end of the coarse-grained powder accumulating section 32. Then, the coarse-grained powder having a large weight falls into the coarse-grained powder accumulating portion 32, and the inclined portion is accommodated in the bag 51 from the outlet 33 through the outlet 32a.
Moreover, the light fine-grained powder floats above the coarse-grained powder accumulating portion 32. Then, the flow generated by the fan 46 passes through the plurality of slanting plates 25 a of the particle size classification unit 25, is conveyed to the fine particle accumulation unit 41, and passes through the filtration bag 44. When passing through the filter bag 44, the fine powder is filtered and the air is discharged to the outside through the exhaust port 45 at the upper end. These filter bags 4
The fine powder filtered to No. 4 falls when the filter bag 44 is vibrated by an appropriate vibrating means (not shown), and the take-out port 42
To the bag 51.

When the chaff is fully stored in the bag 51, the take-out valves 34, 43 are operated to take out the take-out ports 34,
When 42 is closed, the chaff is accumulated on the lower ends of the coarse-grained powder accumulating portion 32 and the fine-grain powder accumulating portion 41. Therefore, the bag 51 filled with the chaff may be removed, a new bag 51 may be attached, and the take-out valves 34 and 43 may be opened.
The state of the chaff accumulated at the lower ends of the coarse-grained powder accumulating section 32 and the fine-grained powder accumulating section 41 can be observed through the observation window 35.

Heavy pebbles, iron pieces, and the like that have fallen into the foreign matter removing section 22 are regularly drawn out of the drawer 24a and discarded when operation is stopped.

According to the above embodiment, since the chaff is sucked from the center of the crushing section 1, a large amount of chaff can be supplied as compared with the case where the chaff is supplied by gravity. Further, the supply amount can be appropriately changed by selecting the number of rotations of the crushing unit 1, the specifications of the fixed blade 4 and the rotary blade 9. Further, since the shavings were crushed in the crushing unit 1, the coarse-grained powder can be reused for the compost and the rug such as the cowshed, and the fine-grained powder can be mixed with the wall material as the building material for use. It has an excellent effect that it can contribute to the reuse of resources. Incidentally, there is an excellent effect that it is possible to prevent the pollution problem due to the smoke generated when the chaff is incinerated conventionally.
Further, since the pebbles and iron pieces mixed in the chaff are removed, the blade of the crushing section is not damaged.

[0025]

The chaff crusher according to the first and second aspects of the present invention sucks chaff from which foreign matters such as pebbles have been removed by the foreign matter removing unit through the suction port of the crushing unit and collides with the rotary blade and the fixed blade. Since it is crushed and accumulated in the powder accumulation part through the discharge pipe, the crushed chaff can be easily managed, and it can be reused for rugs such as compost and barns, contributing to the reuse of resources. The present invention has an excellent effect that the problem of pollution due to smoke generated by the conventional method of incineration can be prevented.

Since the chaff crusher according to the third aspect of the present invention includes the coarse-grain powder accumulating portion and the fine-grain powder accumulating portion, the coarse-grain powder and the fine-grain powder can be separately accumulated. It has an excellent effect that the management can be performed extremely easily.

[Brief description of drawings]

FIG. 1 is a front view showing a first embodiment of the present invention.

FIG. 2 is an exploded perspective view of a crushing unit.

FIG. 3 is a vertical sectional side view of a crushing unit.

FIG. 4 is a front view showing a second embodiment of the present invention.

FIG. 5 is a side view showing an upper half portion of the fine powder accumulating portion in a cutaway manner.

[Explanation of symbols]

 1 crushing part 4 fixed blade 5 suction port 9 rotary blade 10 discharge port 11 discharge pipe 20 chaff storage part 21 suction pipe 22 foreign matter removing part 32 coarse particle collecting part 41 fine particle collecting part 60 powder collecting part

Claims (3)

[Claims] 1. A crushing unit having a fixed blade and a rotary blade, for crushing chaff sucked from a suction port at a central part and discharging it from a discharge port, and a suction port of the crushing unit and a chaff storage unit are connected to each other. A chaff crusher comprising: a suction pipe; and a foreign matter removing unit provided at an intermediate portion of the suction pipe to remove foreign matters such as pebbles contained in the chaff. 2. A crushing unit having a fixed blade and a rotary blade, for crushing chaff sucked from a suction port at the center and discharging it from a discharge port, and a suction port of the crushing unit and a chaff storage unit are connected to each other. A suction pipe, a foreign matter removing unit provided in the middle of the suction pipe to remove foreign substances such as pebbles contained in chaff, a discharge pipe connected to the discharge port of the crushing unit, and a connection to this discharge pipe A chaff crusher characterized by comprising: 3. The chaff crusher according to claim 2, wherein the powder accumulating section includes a coarse particle accumulating section and a fine particle accumulating section.