JP2001104818A - Pulverizing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pulverizing device which is capable of efficiently pulveriz ing waste home electric appliances, waste office automation apparatus and other wastes containing various kinds of metals, thermosetting resins, etc., at a low cost to necessary grain sizes when these wastes are subjected to separa tion, classification, etc., of valuables. SOLUTION: This pulverizing device has a work supplying means 2 for supplying the works to be pulverized, a cylindrical file 3 for finely chipping off the supplied works by a rubbing effect, a rotating means 4 for rotating the cylindrical file and plural classifying means 5 for continuously classifying the primary powder generated in the cylindrical file 3 below the cylindrical file 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technology suitable for waste treatment for collecting and recycling valuable materials, for example, wastes containing various substances such as plastics and metals. When separating and sorting valuable and unnecessary materials from wastes that can be recycled as fillers, such as curable plastics, which can be recycled as fillers if they are finely pulverized. The present invention relates to a fine pulverizing apparatus, a fine pulverizer, and a cylindrical file for fine pulverization which are suitable for the pulverization of waste as a pretreatment.

[0002]

2. Description of the Related Art Conventionally, when recovering valuable resources from metal-containing waste, a manual disassembly / disassembly sorting method or a method of performing coarse crushing using a crusher or a shredder and then separating them by specific gravity sorting has been carried out. Have been done. In that case, the particle size of the crushed material is at most several centimeters,
There is no known technology capable of accurately separating and separating valuable materials by grinding to the order of millimeters or hundreds of microns.

[0003] Food, waste paper, plastic, coal,
Fine mills for non-metals such as cement and pigments have been developed.However, in the past, the finer the powder, the greater the processing time and the shorter the service life of the equipment.
The running cost was high.

Further, a fine pulverizer, a fine pulverizer, and the like capable of directly and finely pulverizing waste materials containing metals such as waste home appliances and waste OA equipment have not been put to practical use yet.

[0005]

In order to separate and collect valuable resources from waste and to recycle valuable resources, separation and separation from mixed substances of valuable and unnecessary substances are performed with as high accuracy as possible. There is a need to increase the value of valuables and reduce processing costs.

[0006] Like waste home appliances and OA equipment, metals,
In order to separate each substance from many constituent materials such as plastic, glass, wood, etc., usually, first crushing,
Make the shape easy to sort. However, when an object composed of a plurality of materials is roughly crushed to about a few centimeters, when a conventional crushing method is used, an inclusion phenomenon in which one material wraps around another material occurs, and the material is sorted out in units of material. Separation / separation is often difficult.

As a method of solving such a problem, if the constituent material is made extremely fine, the above-mentioned inclusion phenomenon does not occur.
The sorting accuracy for each material is dramatically improved.

[0008] Further, there is also a waste such as thermosetting plastics, which can be recycled if it is finely pulverized to a particle size of several tens of microns as a filler.

Under such technical background, a conventionally known pulverizing technique, for example, Japanese Patent Publication No. Hei 6-77690
JP-A-7-155636, JP-A-6-22624
No. 1, JP-A-8-243418, JP-B-6-7363
No. 6, JP-A-6-170272, Jitsuhei 8-4112
There is a technique disclosed in each gazette such as the Japanese Patent Publication No. However, in these conventional techniques, there are problems in that the durability of the apparatus is low and the frequency of replacing parts is high in order to pulverize the object finely, so that the processing capacity is low and the maintenance cost is high.

[0010] The present invention solves the above-mentioned problems, and it is necessary to separate and separate valuable resources from waste home appliances, waste OA equipment, waste containing various metals, thermosetting resin, and the like. It is an object of the present invention to provide a fine pulverizing apparatus capable of performing a fine pulverizing process efficiently and at low cost with respect to a particle size to be obtained.

[0011]

In order to achieve the above object, according to the present invention, there is provided an object supply means for supplying an object to be pulverized, and the supplied object to be processed. A cylindrical file for finely scraping off by a rubbing action, a rotating means for rotating the cylindrical file, and a plurality of stages for continuously classifying the primary powder generated by the cylindrical file below the cylindrical file. And a classifying means.

According to a second aspect of the present invention, in the fine pulverizing apparatus according to the first aspect, the cylindrical file is an integrally formed file in which the entire surface of the cylindrical rotating body is formed in a file shape. Provide a grinding device.

According to a third aspect of the present invention, in the fine pulverizing apparatus according to the first aspect, the cylindrical file is an assembling type in which a plurality of plates each having a curvature whose surface is formed into a file shape are fixed to the surface of the rotating body. A fine pulverizing device characterized by being a file is provided.

According to a fourth aspect of the present invention, in the fine pulverizing apparatus according to any one of the first to third aspects, the object-to-be-processed supply means is provided for the cylindrical file rotating the object to be processed on a horizontal axis. A fine pulverizing apparatus characterized in that the fine pulverizing apparatus is configured to be fed from one or a plurality of locations in a horizontal direction.

According to a fifth aspect of the present invention, in the fine pulverizing apparatus according to any one of the first to third aspects, the workpiece supply means is provided for the cylindrical file rotating the workpiece on a horizontal axis. A fine pulverizing apparatus characterized in that the pulverizing apparatus is configured to be fed from one or a plurality of positions in a vertical direction.

According to a sixth aspect of the present invention, in the fine pulverizing apparatus according to any one of the first to third aspects, the workpiece supply means is provided for the cylindrical file rotating the workpiece on a horizontal axis. A pulverizing apparatus, wherein the pulverizing apparatus is configured to be fed from one or a plurality of positions in a horizontal direction and a vertical direction, respectively.

According to a seventh aspect of the present invention, in the fine pulverizing apparatus according to any one of the first to third aspects, the workpiece supply means is provided for the cylindrical file rotating the workpiece on a vertical axis. A fine pulverizing apparatus characterized in that the fine pulverizing apparatus is configured to be fed from one or a plurality of locations in a horizontal direction.

According to an eighth aspect of the present invention, in the fine pulverizing apparatus according to any one of the first to seventh aspects, the workpiece supply means is a drive mechanism using air or liquid, a mechanical drive mechanism, or a combination thereof. Provided is a pulverizing apparatus characterized in that an object to be processed is fed by a mechanism.

According to a ninth aspect of the present invention, in the pulverizing apparatus according to any one of the first to seventh aspects, the processing object supply means includes a pressing force or a feeding speed of the processing object against a cylindrical file, or And an adjusting means for adjusting both of them.

According to a tenth aspect of the present invention, in the fine pulverizing apparatus according to any one of the first to ninth aspects, one or both of the cylindrical file and the fine powder pulverized thereby are cooled to room temperature or lower. A pulverizing apparatus characterized by comprising a cooling means for cooling the powder.

According to the eleventh aspect of the present invention, in the fine pulverizing apparatus according to the tenth aspect, the cooling means directly blows the refrigerant onto the surface of the cylindrical file, means for flowing the refrigerant into the inside of the cylindrical file, or A pulverizing apparatus characterized by both means is provided.

In the twelfth aspect of the present invention, the first to eleventh aspects
The refining device according to any one of the above, further comprising a re-supplying unit for re-supplying the offcuts having a predetermined particle size from the classifying unit to the pulverizing and supplying unit.

According to the thirteenth aspect, the first to twelfth aspects are described.
In the fine pulverizing device according to any one of the above, the eye shape of the cylindrical file has a groove pitch of 1 mm or more, 3 mm or less,
Groove depth 0.5mm or more, 2mm or less, groove angle 10 °
As described above, the present invention provides a fine pulverizing device characterized by being set at 60 ° or less.

According to the fourteenth aspect, the first to thirteenth aspects are described.
In the fine pulverizing device described in any one of the above, the cylindrical file is provided with an outer diameter of 200 mm or more and 500 mm or less, and a width of 100 mm or more and 500 mm or less.

According to the fifteenth aspect, the first to fourteenth aspects are described.
In the fine pulverizing apparatus according to any one of the above, the rotating means of the cylindrical file is an electric motor.

According to a sixteenth aspect of the present invention, there is provided the fine pulverizing apparatus according to the fifteenth aspect, further comprising a rotation speed control means capable of controlling the rotation speed of the rotating means.

According to a seventeenth aspect of the present invention, there is provided the fine pulverizing apparatus according to the ninth aspect, wherein the adjusting means is a hydraulic or pneumatic cylinder mechanism.

According to the eighteenth aspect of the present invention, the first to the seventh aspects are provided.
In the fine pulverizing apparatus according to any one of the above, a discharge port of the workpiece of the cylindrical file is directly connected to an inlet of the classifying apparatus.

According to the nineteenth aspect of the present invention, the first to the seventeenth aspects are described.
In the pulverizing apparatus according to any one of the above, the processing object supply means has a plurality of cassette-type storage sections capable of storing the processing object, and the storage sections are alternately pressed against a rotating file. And a pulverizing apparatus characterized in that the pulverizing is performed.

[0030]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a fine pulverizer according to the present invention will be described below with reference to the drawings.

1 to 16 show one embodiment of the present invention.

First, the overall structure of the fine pulverizing apparatus will be described with reference to FIGS. In the fine pulverizing apparatus 1 of the present embodiment, an object to be pulverized is introduced by a conveyor, a hopper, or the like (not shown), and an object supply unit that supplies the introduced object to be pulverized. 2, a cylindrical file 3 for finely shaving off the supplied workpiece by a rubbing action, a rotating means 4 for rotating the cylindrical file 3, and a primary powder generated by the cylindrical file 3 It has a configuration including a plurality of classifying means 5 for classifying continuously below the file 3. This fine grinding device 1
Is installed on a gantry 6 having a fixed frame structure, for example.

FIGS. 5 to 7 are enlarged views of main parts of FIGS. 1 to 3, respectively. As shown in these figures, the rotating means 4 is, for example, an electric motor, and the cylindrical file 3 is coaxially and rotatably mounted on a horizontal rotating shaft 7 connected to the motor. The cylindrical file 3 is surrounded by a casing 8, and a hopper 9 is provided below the casing 8 as an outlet of the workpiece. The workpiece supply means 2 includes a driving source 10a such as a cylinder.
And a block-shaped feed piece 10b is connected to the feed piece 10, and the surface of the feed piece 10 facing the cylindrical file 3 is formed in an arc shape. Then, the feed top 10 reciprocates in the processing case 11 and presses the processing object against the cylindrical file 3.

Next, each component will be specifically described with reference to FIGS.

FIG. 7 is a front view showing the arrangement of the workpiece supply means 2, the cylindrical file 3, the classification device 5, and the like.
Is a longitudinal sectional view, and FIGS. 9 and 10 are plan views.
As shown in FIG. 7, the workpiece supply means 2 is arranged horizontally on a gantry 6, and is configured to press the workpiece against a cylindrical file 3 along a horizontal direction. Cylindrical file 3
Is configured to rotate around the horizontal axis 3a, and the inlet of the classifying device 5 is connected directly below the hopper 9, which is the outlet thereof. The classifying device 5 has, for example, a three-stage structure with upper and lower stages, and has a discharge port 12 through which fine powder having a predetermined particle size can be discharged from each stage. The coarse particles remaining at the uppermost stage are returned from the uppermost outlet 12a to the workpiece supply means 2 by a conveyor 13a such as a belt conveyor.

As shown in FIGS. 8 to 10, the workpiece supply means has, for example, two left and right cassette-type storage sections 2a and 2b which can move in a direction perpendicular to the workpiece feeding direction. The workpiece 13 made of a thermosetting resin or the like is housed in each of the housing sections 2a and 2b, and is supplied to the cylindrical file 3 alternately.

FIG. 11 shows a cooling configuration of the cylindrical file 3. As shown in FIG. 11 and FIG. 4 described above, in the present embodiment, a cooling means 14 for cooling one or both of the cylindrical file 3 and the fine powder differentiated by this to room temperature or below is provided. Have been.
The cooling means 14 is of a type that cools the cylindrical file 3 from the inside. A refrigerant introduction pipe 15 is inserted into the inside of the cylindrical file 3 from the outside, and is ejected from a nozzle 15 a provided at the tip of the refrigerant introduction pipe 15. It has become so. And
The jetted refrigerant (see the arrow in FIG. 11) is supplied to the refrigerant introduction pipe 1
5 is collected by an external circulation mechanism or the like through a gap between the shaft 5a of the cylindrical file 3 and the shaft 3a. With such a configuration, the heat generated in the case of performing the fine pulverization of the processing target 13 is removed to perform file cooling, thereby ensuring soundness and workability.

FIG. 12 shows a case where an electric motor or a hydraulic motor is used as the rotating means 4 of the cylindrical file 3. Although not shown in the present embodiment, an electric motor or a hydraulic motor as the rotating means 4 is connected to a predetermined power supply or hydraulic power source.

FIG. 13 shows a detailed configuration of the cylindrical file 3 according to the present embodiment. FIG. 1A is a diagram showing the entire cylindrical file, and FIG. 1B is a diagram showing one file plate 16 as a file part. As shown in this figure, in the present embodiment, the cylindrical file 3 has a plurality of file plates 16 having a curvature whose surface is formed into a file shape.
It is of an assembling type fixed to the surface of a cylindrical rotating body 17. According to such a configuration, the file plate 16
In other words, since it is configured in a tile shape, it is easy to repair or replace when it is partially damaged, and it is possible to enhance maintainability.

FIG. 14 shows a process of returning the coarse powder 18 to the workpiece supply means 2 again by the transport device 13a shown in FIG. 7 when processing is performed using the apparatus of this embodiment. It is. As shown in FIG.
By supplying the coarse powder 18 sieved from the uppermost part of the cylinder together with the processing object 13 to the cylindrical file 3, the processing residue can be reduced, thereby enabling efficient processing. is there.

FIG. 15 and FIG. 16 show the detailed configuration of 3. As shown in these figures, in the present embodiment, the eye shape of the cylindrical file 3 is such that the groove pitch a is 1
The groove depth b (depth from the top of the file nail to the groove bottom) is set to 0.5 mm or more and 2 mm or less, and the groove angle c is set to 10 ° or more and 60 ° or less. . The outer diameter (diameter) d of the cylindrical file 3 is 200 mm.
, 500 mm or less, width e is 100 mm or more, 500
mm or less. With such a configuration, good results were obtained especially in the fine pulverization treatment of the thermosetting resin.

That is, Tables 1 and 2 below show the critical points of the samples in the present embodiment in which each of the above values was changed. Table 1 shows the relationship between the groove pitch a and the depth b, the finely pulverized particle size, and the processing speed. As is clear from Table 1, if the groove pitch and the depth are too small, a predetermined fine pulverizing process cannot be expected, and the processing capacity is reduced due to clogging or the like. Table 2 shows the relationship among the groove angle, the fine particle size and the processing speed. From Table 2, it was recognized that when the groove angle c is 10 ° or more and 60 ° or less, the finely pulverized particle size and the processing speed can be increased.

Next, another embodiment of the present invention will be described. 17 to 25 show modified examples of the processing object supply means, the cooling means, the file structure, and the like.

That is, in the above-described embodiment, the processing object supply means is configured to feed the processing object 13 to the cylindrical file 3 rotating on the horizontal axis from one or a plurality of positions in the horizontal direction. In the present invention, various modifications are possible.

For example, as shown in FIG. 17 as a side view,
The processing object supply means 2 may be configured to feed the processing object 13 to the cylindrical file 3 rotating on the horizontal axis from one or a plurality of positions in the vertical direction.

As shown in FIG. 18 as a side view,
The workpiece supply means 2 may be configured to feed the workpiece 13 to the cylindrical file 3 rotating on the vertical axis from one or more locations in the horizontal direction.

In addition, a configuration may be adopted in which the object 13 is fed into the cylindrical file rotating on the horizontal axis from one or more locations in the horizontal and vertical directions. By appropriately adopting such a configuration, the processing operation can be performed in an optimal state according to the processing target, the device scale, the working environment, and the like.

Various modifications and applications are also possible for the driving mechanism of the cylindrical file 3 and the workpiece supply means 2.

FIG. 19 shows an example of a configuration that enables control of the rotation speed of the cylindrical file 3. In this example, the driving source 1
Inverter 19 is connected to 0a to control the rotation speed.

FIG. 20 and FIG.
Of the driving mechanism. In the case of FIG. 20, for example, a hydraulic cylinder mechanism is applied, and the feed piece 10b is reciprocated by the piston 20 driven in the cylinder as the drive source 10a. In this case, an arbitrary speed can be set by providing a branch pipe 21, a flow control valve 22, a switching valve 23, a feed speed control valve 24, and a return speed control valve 25, and controlling these with an operation panel 26.

In the case of FIG. 21, a pneumatic cylinder mechanism is adopted, and compressed air from a compressor is led through a pipe 27, and an adjusting valve 28, a switching valve 29, a branch pipe 30 and the like are configured as elements. Then, as described above, the speed can be set to an arbitrary speed by the setting means 31.

FIGS. 22 to 24 show modified examples of the cooling mechanism of the cylindrical file 3.

FIG. 22 shows a configuration in which the refrigerant is supplied through the shaft 3a of the cylindrical file 3. In this case, the shaft 3a is driven by a motor 32 provided on the outer peripheral surface side, and a seal 33 is provided. Thereby, refrigerant can be supplied through the inside of the rotating shaft 3a.

FIG. 23 shows a configuration in which a coolant is blown onto the outer surface of the cylindrical file 3 to perform cooling from the outer surface side.
That is, the nozzle 35 is connected to the refrigerant introduction pipe 34, and the refrigerant is discharged from the refrigerant discharge hole 36 to the file surface to perform external cooling.

FIG. 24 shows another means for cooling the outer surface of the cylindrical file 3. In this example, the cylindrical file 3
Is penetrated through a case portion for covering the surface of the cylindrical file 3, whereby the refrigerant is ejected to the surface of the cylindrical file 3 and is cooled together with the powder 38 being processed.

The same cooling effect as that of the above embodiment can be obtained by each of the cooling means described above.

FIG. 25 shows a modification of the cylindrical file 3. In the above-described embodiment, the assembly type is such that a plurality of plates having a curvature whose surfaces are formed into a file shape are fixed to the surface of the rotating body. However, the cylindrical file 3 shown in FIG.
The whole is integrated, and the whole surface is formed in the shape of a sliver.

As described above, in the present invention, each component can be implemented in various modes.

[0059]

[Table 1]

[0060]

[Table 2]

[0061]

As described in detail in the above embodiments, according to the present invention, wastes of various sizes including various materials including plastics and metals can be directly pulverized by abrasion action. it can. Therefore, fine powders of the desired particle size can be easily obtained from wastes containing metals into fine powders that enable efficient separation and collection of valuables. And a fine pulverizing apparatus capable of finely pulverizing all waste materials. As a result, effective recycling of waste materials becomes possible, and the global environment can be well preserved.
Global resources can be used effectively economically.

[Brief description of the drawings]

FIG. 1 is an overall front view showing an embodiment of a fine grinding device according to the present invention.

FIG. 2 is an overall plan view showing an embodiment of a fine grinding device according to the present invention.

FIG. 3 is an overall side view showing an embodiment of a fine grinding device according to the present invention.

FIG. 4 is an enlarged front view showing one embodiment of the fine pulverizing device according to the present invention.

FIG. 5 is an enlarged plan front view showing one embodiment of the fine pulverizing device according to the present invention.

FIG. 6 is an enlarged side view showing one embodiment of the fine pulverizing device according to the present invention.

FIG. 7 is an enlarged view specifically showing the fine pulverizing device in the embodiment.

FIG. 8 is a front view showing a feed mechanism in the embodiment.

FIG. 9 is a plan view showing a feed mechanism in the embodiment.

FIG. 10 is an explanatory view showing a feed mechanism in the embodiment.

FIG. 11 is a view showing a cooling mechanism in the embodiment.

FIG. 12 is a view showing a driving mechanism in the embodiment.

FIGS. 13A and 13B are views showing a file in the embodiment.

FIG. 14 is a view showing a return mechanism in the embodiment.

FIG. 15 is a diagram showing a groove angle of a file in the embodiment.

FIG. 16 is a view showing a groove depth and the like of a file in the embodiment.

FIG. 17 is a view showing another embodiment of the fine pulverizing apparatus according to the present invention.

FIG. 18 is a view showing another embodiment of the pulverizing device according to the present invention.

FIG. 19 is a view showing another embodiment of the pulverizing device according to the present invention.

FIG. 20 is a view showing another embodiment of the pulverizing device according to the present invention.

FIG. 21 is a view showing another embodiment of the fine pulverizing device according to the present invention.

FIG. 22 is a view showing another embodiment of the pulverizing device according to the present invention.

FIG. 23 is a view showing another embodiment of the pulverizing device according to the present invention.

FIG. 24 is a view showing another embodiment of the pulverizing device according to the present invention.

FIG. 25 is a diagram showing another embodiment of the pulverizing device according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pulverizing apparatus 2 Processing object supply means 2a, 2b Cassette type storage part 3 Cylindrical file 3a Horizontal axis 4 Rotation means 5 Classification means 6 Mount 7 Rotation shaft 8 Casing 9 Hopper 10a Drive source 10b Feeding piece 11 Processing case Reference Signs List 12a Discharge port 13 Workpiece 13a Transport device 14 Cooling means 15 Refrigerant introduction pipe 16 File plate 17 Rotating body 18 Coarse powder 19 Inverter 20 Piston 21 Branch pipe 22 Flow control valve 23 Switching valve 24 Feed speed control valve 25 Return speed control valve 26 Operation panel 27 Piping 28 Adjusting valve 29 Switching valve 30 Branch pipe 31 Setting means 32 Motor 33 Seal 34 Refrigerant introduction pipe 35 Nozzle 36 Refrigerant ejection hole 37 Refrigerant introduction pipe 38 Powder

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Yu Yamamoto 2-4, Suehirocho, Tsurumi-ku, Yokohama-shi, Kanagawa F-term in Toshiba Keihin Works (reference) 4D004 AA07 AA21 AA22 AA46 BA01 BA05 BA07 CA04 CA08 CA32 CB13 CB42 DA02 DA03 DA13 DA20 4D067 EE01 EE12 EE17 EE34 GA10 GA16 GA20 4F301 AA21 BE12 BE32 BF01 BF31

Claims (19)

[Claims] 1. An object supply means for supplying an object to be pulverized, a cylindrical file for finely shaving off the supplied object by a rubbing action, and rotating the cylindrical file. A fine pulverizing apparatus comprising: a rotating means; and a plurality of stages of classifying means for continuously classifying primary powder generated by the cylindrical file below the cylindrical file. 2. The fine grinding apparatus according to claim 1, wherein the cylindrical file is an integrally formed file in which the entire surface of the cylindrical rotating body is formed into a file shape. 3. The pulverizing apparatus according to claim 1, wherein the cylindrical file is an assembling file in which a plurality of plates having a curved surface and having a curvature are fixed to the surface of the rotating body. Characteristic pulverizer. 4. The fine pulverizing apparatus according to claim 1, wherein the processing object supply means is configured to horizontally move the processing object with respect to a cylindrical file rotating on a horizontal axis. A pulverizing device characterized in that it is configured to be fed from a place or a plurality of places. 5. The fine pulverizing apparatus according to claim 1, wherein the processing object supply means vertically moves the processing object with respect to a cylindrical file rotating on a horizontal axis. A pulverizing device characterized in that it is configured to be fed from a place or a plurality of places. 6. The fine pulverizing apparatus according to claim 1, wherein the processing object supply means is configured to horizontally and vertically move the processing object with respect to a cylindrical file rotating on a horizontal axis. A pulverizing apparatus characterized in that it is configured to be fed from one or a plurality of locations in each direction. 7. The fine pulverizing apparatus according to claim 1, wherein the processing object supply means is configured to horizontally move the processing object with respect to a cylindrical file rotating on a vertical axis. A pulverizing device characterized in that it is configured to be fed from a place or a plurality of places. 8. The finely pulverizing apparatus according to claim 1, wherein the object to be processed is supplied by a driving mechanism using air or a liquid, a mechanical driving mechanism, or a combination thereof. A fine pulverizing device, wherein the fine pulverizing device is configured to send the fine particles. 9. The finely pulverizing apparatus according to any one of claims 1 to 7, wherein the processing object supply means adjusts a pressing force or a feeding speed of the processing object against the cylindrical file, or both of them. A pulverizing device comprising an adjusting means. 10. A cooling device according to claim 1, wherein one or both of the cylindrical file and the fine powder pulverized thereby are cooled to room temperature or lower. A pulverizing device comprising: 11. The pulverizing apparatus according to claim 10, wherein the cooling means is means for directly blowing the refrigerant on the surface of the cylindrical file, means for flowing the refrigerant into the cylindrical file, or both means. A pulverizing device characterized by the above-mentioned. 12. The fine pulverizing apparatus according to claim 1, further comprising a re-supplying means for re-supplying the offcuts having a predetermined particle size from the classifying means to the fine pulverizing and supplying means. Crushing equipment. 13. The fine pulverizing device according to claim 1, wherein a groove shape of the cylindrical file has a groove pitch of 1 mm or more, 3 mm or less, and a groove depth of 0.5 mm.
The pulverizing apparatus is characterized in that the length is set to 2 mm or less and the groove angle is set to 10 ° or more and 60 ° or less. 14. The fine pulverizing device according to claim 1, wherein the cylindrical file has an outer diameter of 20 mm.
0 mm or more, 500 mm or less, width 100 mm or more, 5
A fine pulverizing device characterized by being set to not more than 00 mm. 15. The pulverizing apparatus according to claim 1, wherein the rotating means of the cylindrical file comprises:
A pulverizing device characterized by being an electric motor. 16. The fine pulverizing apparatus according to claim 15, further comprising a rotation speed control means for controlling a rotation speed of the rotation means. 17. The fine pulverizing device according to claim 9, wherein
The pulverizing device, wherein the adjusting means is a hydraulic or pneumatic cylinder mechanism. 18. The fine pulverizing apparatus according to claim 1, wherein a discharge port of the processing object of the cylindrical file is directly connected to an inlet of the classifying apparatus. 19. A pulverizing apparatus according to claim 1, wherein the processing object supply means has a plurality of cassette-type storage sections capable of storing the processing object. A pulverizing device characterized in that the parts are alternately pressed against a rotating file.