JPH10309485A - Grinder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a grinder wherein foreign matter are difficult to twist around part grinding materials to be ground when the materials to be ground are ground. SOLUTION: A pair of rollers 21, 22 are provided in an apparatus main body 1 to which a charge opening 11 of materials to be ground and its discharge opening are provided, and the apparatus main body is so constituted that the materials to be ground can be charged between both rollers 21, 22. Many projections 23 are provided onto outer surfaces of a pair of the rollers 21, 22, a first driver rotatably driving both rollers 21, 22 around respective shaft centers is provided, and both rollers 21, 22 are freely rotatably constituted so that the projections 23 are opposed to each other, and transfer from upside to downward between both rollers 21, 22. Further, a projection part 25 projecting inside the apparatus proper 1 on an inner wall surface of the apparatus proper 1 is freely rotatably provided around the shaft center along its projecting direction. A second driver 26 wherein the projection part 25 is rotatably driven around the shaft center, is provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pulverizer for pulverizing an object to be ground between a pair of rollers.

[0002]

2. Description of the Related Art As this kind of crushing apparatus, there is used a crushing apparatus in which a pair of rollers having a crushing blade plate are rotated to uniformly grind an object to be crushed introduced during the rotation.

[0003]

However, according to the above-mentioned conventional pulverizing apparatus, when the object to be pulverized contains resin, the friction when the pulverizing blade plate cuts the resin. By heat, the resin melt-softened, asbestos,
Foreign matter such as fibrous reinforcing material such as pulp adheres to the crushing blade plate and sticks out, and the crushing ability of the crushing blade plate rapidly decreases, making it difficult to crush the material to be crushed, The pulverization process is delayed, and it becomes impossible to obtain the pulverized material pulverized by the pulverizing device, and it is not possible to take out the pulverized material from the pulverizing device. . Therefore, an object of the present invention is to provide a pulverizing device in which a foreign substance is hardly entangled with a part to be pulverized when the object to be pulverized is pulverized.

[0004]

The characteristic structure of the pulverizing apparatus of the present invention for achieving this object will be described with reference to the drawings. 1, a pair of rollers 21 and 22 are provided inside, and a material to be crushed can be put between the rollers 21 and 22; and a large number of projections 23 are provided on the outer surfaces of the pair of rollers 21 and 22; A first driving device 24 for driving the rollers 21 and 22 to rotate about their respective axes;
And the two rollers 21 and 22 are configured to be rotatable so that the protrusions 23 oppose each other and move between the rollers 21 and 22 from above to below. On the inner wall surface, a protruding portion 25 protruding inward of the device main body 1 is rotatably provided around an axis along the protruding direction, and a second driving device 26 for rotating the protruding portion 25 about the axis is provided. It is desirable that a large number of diamond particles be fixed to the outer surface of the protrusion 25.

[0005] The drawings are used merely for reference, and the present invention is not limited to the configuration of the drawings.

[Effects] In other words, a pair of rollers is provided inside the apparatus body provided with an inlet and an outlet for the material to be ground, and the material to be ground can be charged between the two rollers. The object to be ground introduced from the inlet can be conveyed to the outlet while being compressed. At this time, a large number of protrusions are provided on the outer surfaces of the pair of rollers, and a first driving device that drives the two rollers to rotate about their respective axes is provided. Since both rollers are configured to be rotatable so as to move downward, the object to be crushed is
While being forcibly moved between the rollers, it is likely to be shredded by the protrusions. Here, when a foreign substance is entangled with the projection, the foreign substance is conveyed along the roller, and tends to move upward between the apparatus main body and the roller. However, since a projection is provided on the inner wall surface of the apparatus main body to protrude inward of the apparatus main body, the foreign matter is easily caught by the projection and is easily removed from the projection. , It is difficult for the cutting ability to be reduced. Furthermore,
Since the second driving device is provided so as to be rotatable around the axis along the projecting direction and drives the projecting portion to rotate about the axis, the projecting portion is more securely entangled with the projecting portion. Foreign matter can be removed. In addition, if a large number of diamond particles are fixed to the outer surface of the protrusion, the foreign matter can be easily cut between the protrusions, so that the crushing efficiency is further improved. A grinding device can be provided.

[0007] Therefore, the projecting portion can pierce and crush the object to be crushed in a state where the foreign matter is not entangled with the foreign matter, so that the crushing operation can be maintained in a good state and the crushing efficiency can be improved. I was able to help.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a crushing apparatus according to the present invention will be described below with reference to the drawings. As shown in FIGS. 1 to 3, an apparatus main body including a hopper 1 into which an object to be crushed is charged is provided. The hopper 1 is provided with a perforation apparatus 2 and a crushing apparatus. Further, a screw 33 is provided downstream of the pulverizing device.
The conveyor device 3 having the inside is connected in series, and the objects to be ground can be sequentially processed while being conveyed.

The hopper 1 is provided with an inlet 11 for a large-diameter object to be ground and an outlet 12 for discharging a perforated object to be ground. A perforation device 2 provided with perforation rollers 21 and 22 is provided. The perforation rollers 21 and 22 are provided with a large number of perforation protrusions 23 on the outer surface thereof, and are respectively connected to a rotation drive device 24 that rotates around the axis. Thereby, the boring projections 23 face each other, move up and down between the rollers 21 and 22 and pierce the crushed object, and separate the crushed object while transporting the crushed object downward. it can. Further, on the inner wall of the hopper 1, there are provided a large number of projections 25 for dropping the crushed object which has hardly fallen down by piercing the projection 23 for boring.

As shown in FIG. 2, the protruding portion 25 protrudes inwardly of the hopper 1, and the rotatable boring projections 23 pass through an intermediate portion thereof. The protruding portion 25 is rotatably provided around an axis along the protruding direction, and is provided with a second driving device 26 which is driven to rotate about the axis. In addition, a large number of industrial diamonds are fixed to the outer surface of the protruding portion to reinforce the diamond, so that a relatively hard material to be ground can be ground.

As shown in FIGS. 1 to 3, the conveyor device 3 has a cylindrical casing 31 in which a plurality of independent blades 32 are attached in a spiral manner around a rotating shaft. The screw 33 is provided with a driving device 34 for rotating and driving around the axis along the longitudinal direction of the casing 31. A large number of projecting portions 35 protruding inward of the casing 31 are provided inside the casing 31 so as to be detachable at four locations in the circumferential direction of the casing along the longitudinal direction of the casing 31.

At the bottom of the casing 31, there is provided a sieve portion 36 for dropping and discharging fine particles to the outside of the casing. The sieve portion 36 is formed so that fine contaminants such as sand, glass and metal can be dropped and removed. I have.

A connecting portion 37 is provided at one end of the casing 31 so as to be connected to the discharge port 12 of the hopper 1 so that the crushed material can be carried in. The other end of the casing 31 is shredded. A discharge port 38 for discharging the conveyed material to be crushed is provided so that the shredded material to be crushed can be taken out. Thereby, the crushed object mass is formed between the rotating blade 32 and the protruding portion 35 so as to be further shredded.

[0014] Based on such a configuration, a plate-like waste lump mainly composed of plastic is treated as follows. When the waste mass is thrown in from the input port 11, the waste is formed into a small lump while a large number of holes are formed on the surface based on the large number of protrusions 23 provided on the rollers 21 and 22. It is dropped and supplied to the lower conveyor device 3. The waste mass dropped and supplied to the conveyor device 3 is conveyed from one end to the other end by the screw,
It is further shredded between the blade and the protrusion. At this time, contaminants such as sand contained in the waste are dropped and removed from the sieve portion while being separated, so that the melting process mainly composed of plastic becomes easy. The shredded and desanded waste mass is subjected to a subsequent process of melting and molding into RDF.

In the above-described embodiment, an example is shown in which the present invention is applied to the pulverization of waste. However, other pulverized materials may be used.
Even if fibrous materials such as asbestos and pulp are entangled with the protrusion, it can be efficiently removed. Further, in the above embodiment, since it is used for crushing a lump of waste mainly composed of a resin, as a particularly preferred form, it is configured to be further shredded by using the conveyor device 3, but depending on the type of the material to be crushed, The processing device following the pulverizing device can be variously changed.

Since the protruding portions 35 are formed to be softer than the blades 32, the blades 32 are not so large that high processing capacity can be obtained simply by replacing the protruding portions 35 individually at the time of maintenance. It can be maintained.

[Brief description of the drawings]

FIG. 1 is a longitudinal side view of a crusher.

FIG. 2 is a longitudinal sectional front view of a crusher.

FIG. 3 is a vertical sectional front view of the conveyor device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Device main body 11 Input port 12 Discharge port 21, 22 Roller 23 Projection 24 First drive device 25 Projection part 26 Second drive device

Claims (2)

[Claims] An apparatus body provided with an inlet and an outlet for an object to be crushed is provided with a pair of rollers therein so that the object to be crushed can be charged between the two rollers and the outside of the pair of rollers. Providing a number of protrusions on the surface, providing a first drive device for rotating the rollers about their respective axes, so that the protrusions face each other and move between the rollers from top to bottom. , The two rollers are configured to be rotatable, and a protruding portion that protrudes inward of the device main body is provided on an inner wall surface of the device main body so as to be rotatable around an axis along the protruding direction. A crusher provided with a second drive device for rotating the shaft around the axis. 2. The pulverizing device according to claim 1, wherein a large number of diamond particles are fixed to an outer surface of the projection.