JP2001157849A - Crushing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To crush to a desired particle size. SOLUTION: A pair of first and second crushing disks 5a, 5b are installed so as to face each other with a crushing gap 7 of a certain width D. At least one of the disks 5a, 5b is made rotary, and the second disk 5b is made movable to-and-fro relatively to the first disk 5a to make the gap width D adjustable. Thus, an object to be crushed is crushed between the rotating first and second disks 5a, 5b and simultaneously a crushing product with a small particle size is discharged through the gap 7 between the disks 5a, 5b.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a method for converting a raw stone (raw material) into a raw material for ceramics, a crushed stone, a crushed raw material such as an aggregate, and a crushed material.
It mainly relates to a crushing device for crushing into coarsely crushed and intermediate crushed products.

[0002]

2. Description of the Related Art Conventionally, a jaw crusher is known as a general crushing device (crushing device, intermediate crushing device). This jaw crusher is capable of removing two strong tooth plates opposed in a V shape. And one of the two tooth plates is fixed, and the movable tooth plate is moved with respect to the fixed tooth plate so that the angle and distance between the two tooth plates fluctuate, and inserted between the two tooth plates. The object to be crushed (lumps) was chewed. Therefore, in the conventional crusher (jaw crusher), since the movement direction is a reciprocating swing motion, it is difficult to improve the efficiency, or the fixed position of the two plates and the fixed position of the movable tooth plate are fixed. It was difficult to control the particle size of the pulverized material. In addition, the crushing tooth surface of the tooth plate is severely damaged and worn, so that the tooth plate (crushing tooth surface) needs to be replaced frequently. However, there is a drawback that the apparatus becomes large and expensive.

[0003]

SUMMARY OF THE INVENTION The present invention provides a pulverizing apparatus for improving the pulverizing efficiency and pulverizing to a desired particle size.

[0004]

DISCLOSURE OF THE INVENTION The present invention has a crushing gap having a predetermined gap width in view of the problem that the crushing efficiency is low and the crushing to a desired particle size is difficult based on the above prior art. A pair of first and second crushing plates are set up relative to each other, at least one of the first and second crushing plates is rotatable, and the other second crushing plate is movable with respect to one of the first crushing plates. The width of the gap can be freely adjusted to crush the object to be crushed between the rotating first and second crushing machines, and to reduce the particle size due to the crushing gap between the first and second crushing machines. The crushed material is discharged, and the above problem is solved by adjusting the width of the crushing gap that determines the particle size of the crushed material to be discharged.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. First, the object, use, and the like of the device of the present invention are as follows. The ore (raw material) to be pulverized is a solid that does not contain a large amount of fibrous material.
mm intermediate pulverized product, finely pulverized product as a by-product. For example, ceramic raw materials such as quartzite, feldspar, and other stones, ceramic baked products, and glass are pulverized (crushed) into powdered or granular materials (ceramic raw materials), or coarser raw materials and intermediate pulverized raw materials in the preceding stage. Alternatively, the device of the present invention is used for crushing rock into crushed stone, aggregate, and gravel, and crushes and intermediately crushes shellfish, livestock bone, and the like. That is, the present invention can be applied to the pulverization of the material to be pulverized M which can be roughly pulverized, except for some substances which are so fibrous that the pulverization operation by the apparatus of the present invention is not suitable.

As shown in FIGS. 1 to 4, a crusher 1 according to the present invention comprises a first rotating body having a frame 2 having first and second driving sources 3a and 3b, a hopper 4 and a first crusher 5a. 6a and the second
Each is equipped with a slidable second rotating body 6b having a crushing plate 5b, and as shown in FIG. 6, a pair of first and second crushing plates 5a, 5b.
Are erected relative to each other so as to have a crushing gap 7 between them so that they can rotate in the reverse direction. In addition, as shown in an example described later,
The first and second crushing plates 5a and 5b which are relatively erected are rotatable in the reverse direction, but it is sufficient if at least one of them is rotatable, that is, it is relatively rotatable. As a basic operation of the crushing apparatus 1 having such a basic configuration, the material to be crushed M put into the hopper 4 moves inside the first rotating body 6a in the horizontal direction, and the crushing gap 7 is removed from the first crushing machine 5a. The crushed material W smaller than the gap width D of the crushing gap 7 that can be slid and adjusted is dropped and discharged from the chute 8. Although not shown, the crushed material M is provided on the upstream side of the hopper 4 and the downstream side of the chute 8.
And a transport device for the crushed material W.

Hereinafter, the configuration of the embodiment will be described in detail. As shown in FIGS. 1 to 4, a crushing chamber 10 containing first and second crushing plates 5 a and 5 b which are relatively rotated in an upright state is provided at a central portion of the upper frame 2 a of the frame 2. The left side is the first rotating body 6a having the hopper 4, and in the figure, the right side is a predetermined amount,
The second rotating body 6b is slidable left and right.

On the other hand, as shown in FIGS. 1 to 4 and in detail, FIGS. An open material input box 11 is installed, a hopper 4 is provided on the upper left side of the material input box 11, and a first drive shaft 12 is rotatably mounted at the center of the material input box 11. The driving side of the first drive shaft 12 (left side in the figure)
Penetrates the raw material charging box 11 and is supported by bearings 13. The base end (the left end in the figure) of the first drive shaft 12 is connected to the first drive source 3a. On the other hand, the tip side of the first drive shaft 12 (in the figure,
The first crusher 5a is attached to the right side), and the first crusher 5a
A screw-shaped conveying member 15 is mounted on the outer peripheral side of the drive shaft 12 via a collar 14, and a shaft mounting portion 16 of the first crushing machine 5a is mounted.
A material input window 17 is opened around the periphery of the container. In addition, raw material input box
11 and the first drive shaft 12, the crushing chamber 10 and the raw material charging box 11 are appropriately sealed.

Further, the other second rotary body 6b on the right side is shown in FIGS. 1 to 4 in its entirety, FIGS. 5 to 7 in the vicinity of the crushing chamber 10, and FIGS. As shown in FIGS. 8 to 10, guide rails 21 and 21a are provided on guide frames 20 and 20a horizontally installed on both sides of the upper frame 2a.
A partial frame of a moving frame 23 having a second rotating body 6b is attached to sliding bodies 22, 22a moving on the guide rails 21, 21a. A cylinder arm 24, 24a is provided on one side of the upper frame 2a of the frame 2 to protrude upward, and a movable frame 23 is provided at a predetermined distance from the cylinder arm 24, 24a.
Cylinder brackets 25, 25a are protruded above, and the cylinder arms 24, 24a and the cylinder brackets 25, 25a are pivotally connected to both ends of cylinders 26, 26a in which rods move forward and backward by hydraulic pressure. With this configuration, the guide rails 21 and 21a and the sliding members are provided on the guide frames 20 and 20a of the upper frame 2a.
The movable frame 23 supported via the 22 and 22a is movable left and right (movable forward and backward) by the operation of the cylinders 26 and 26a.

As shown in FIGS. 1, 2 and 9, stoppers 28 and 28a provided at the end of the moving frame 23 and contacting with contact plates 27 and 27a are attached to the upper frame 2a near the crushing chamber 10. When mounted, the stoppers 28, 28a are adjustable in position. When the movable frame 23 that can move left and right is advanced to the crushing chamber 10 by the configuration that regulates the amount of advance of the second crushing machine 5b from the front side (the crushing chamber 10 side) of the second crushing machine 5b, the stopper 28, The operation is stopped at 28a, and the position of the second crushing machine 5b in the crushing chamber 10 is set to a desired position. Further, the second crushing machine 5b is movable by the pressing force of the cylinders 26 and 26a, and the position thereof is regulated by the stoppers 28 and 28a. 5a and the second crusher
A predetermined amount of the crushing gap 7 is set between 5b, and the other second crushing plate 5b is pressed in the direction of one first crushing plate 5a.

Also, as shown in FIGS.
23 has a rotating frame 29 at the top and a motor frame 30 at the bottom.
And the bearings 31 and 31a provided on the rotating body frame 29 are used for the second
The second drive shaft 32 of the second rotating body 6b having the crushing machine 5b is rotatably supported. Then, as shown in FIGS.
The distal end (the left end in the figure) of the drive shaft 32 is located in the crushing chamber 10 and the second crushing plate 5b is attached, and the base end (the right end in the figure) of the second drive shaft 32 as shown in FIGS. ) Is connected to a pulley 35 of the second drive source 3 b attached to the motor frame 30 by a belt 36.

Next, the first, which rotates relatively reversely in the crushing chamber 10,
The configuration of the second crushers 5a and 5b will be described. As shown in FIGS. 11 and 12, the first crushing machine 5a on the raw material input side (left side) and the second crushing machine 5b on the movable side (right side) have a ring-shaped crushing surface 40 of basically the same configuration. And the first crusher on the raw material input side
They differ from each other in that the above-mentioned material input window 17 is opened in 5a. Then, as shown in FIG. 11, three spokes 4 are attached to a cylindrical shaft mounting portion 16 located at the center of the first crushing machine 5a.
3, 43a ... are attached in the radial direction, and the spokes 43, 43a ...
A ring-shaped disk 44 serving as a crushing surface 40 is attached to the tip of the disk. With this configuration, the shaft mounting portion 16 and the disc 44
Between the spokes 43, 43a,... Constitute a material input window 17 communicating the material input box 11 and the crushing gap 7 (input space 70 described later), and the inner edge of the ring plate of the disc 44 is the material input box 11
It almost matches the height. The side edges of the spokes 43, 43a in the rotational direction and the inner edge of the disc 44 are inclined surfaces 45, 45a.
...

As shown in FIGS. 11 and 12 (b), a ring-shaped plate is provided on the front surface of the disk 44 in the first and second crushing plates 5a and 5b via a seat plate 50 for height adjustment. The base 51 is fixed. The base for the integrated disk 44 or seat plate 50
As the mounting state of 51, bolts 55 and 55a
, While the inner edge of the disk 44 (seat plate 50) has a step relative to the seating surface 50a of the ring-shaped base 51.
50b is projected, and when mounting the base 51 to the disc 44,
The inner edge of the base 51 is in circular contact with the outer edge of 50b.

As shown in FIG. 12, an outer peripheral rim of a base 51 attached to the disk 44 is formed integrally with the front side to form a flange receiver 52 having a predetermined height. The unit board 54 of the collective unit tooth plates 53, 53a... In which the crushing surface 40 is divided into six parts is mounted, and a pedestal is provided in front of the unit board 54.
A predetermined number of divided blades 57a, 57a,... Are mounted via 56a, 56a,. These mounting forms include a set unit tooth plate
In the case of 53, 53a, the divided blades 57, 57a are bolted from the rear side of the pedestals 56a, 56a to the pedestals 56, 56a.
Are fixed to the unit board 54 from the back side of the unit board 54 with bolts 59, 59a..., And the front side of the unit board 54 in the collective unit tooth plates 53, 53a. The unit substrate 54 is fixed to the base 51 from the adjacent tooth gap 71 (between divided blades 57, 57a, which will be described later) with bolts 60, 60a,.

Each of the divided blades 57a, 57a,... Has a substantially triangular shape, one of the vertices is disposed on the center side, and the bottom is disposed on the outer peripheral side, and the adjacent divided blades 57, 57a,. So that there is no gap on the peripheral side. And pedestals 56, 56a ...
Also has a substantially triangular shape having substantially the same shape as the divided blades 57, 57a.
The outer periphery of the pedestals 56, 56a... Is in line contact with the inner periphery of the flange receiver 52 projecting from the base 51, while the outer periphery of the split blades 57, 57a. Let me.

With this configuration, as shown in FIG. 6, the first and second crushing plates 5a and 5b which are relatively erected in the crushing chamber 10 are provided.
Between the crushing surfaces 40, that is, the unit tooth plates 53, 53a.
57, 57a...) Form the crushing gap 7 (gap width D).
As shown in FIG. 12 (b), in the divided blades 57, 57a... Having a substantially triangular shape and the apex located on the inner peripheral side, the gap on the inner peripheral side of the adjacent divided blades 57, 57a. It becomes 71. Then, a part (entirely, both ends) of the crushed material M bites into the adjacent tooth gap 71 of the first and second crushing plates 5a and 5b which are relatively erected, and the first and second rotating members relatively rotate. Crushed by the crushers 5a and 5b. Also, the divided blades 57, 57a are collective unit tooth plates 53, 53a,
Since it is arranged in a ring shape via the base 51 and the like, the crushing gap 7 between the first and second crushing machines 5a and 5b,
There are no split blades 57, 57a on the inner edge side of 53, 53a, etc.
This space is divided into hopper 4, raw material input box 11, raw material input port 17
And a charging space 70 for the material to be crushed M to be moved and charged into the crushing gap 7 through the hole (see FIGS. 5 to 7).

Next, the operation of the crusher according to the present invention will be described. The basic operation of the crushing device 1 having the above configuration is as follows.
The stoppers 28 and 28a are appropriately adjusted so that the gap width D of the crushing gap 7 between the first crushing machine 5a and the second crushing machine 5b in the crushing chamber 10 is set to a predetermined width in accordance with the desired particle size of the crushed material W. After setting the position, the cylinders 26 and 26a are operated. Then, the moving frame 23 mounted with the second rotating body 6b having the second crushing machine 5b at the tip moves forward, and the stoppers 28, 28a
The contact plates 27 and 27a of the moving frame 23 come into contact with the moving frame 23, and the moving frame 23 stops moving. As a result, the second crushing machine 5b facing the first crushing machine 5a is crushed by the cylinders 26 and 26a.
The slide movement is stopped while being urged to the 10 side, and the gap width D between the first crushing machine 5a and the second crushing machine 5b is set to be a predetermined width. Then, the first rotating body 6a is rotated at a low speed, and the second rotating body 6b is rotated at an appropriate speed in the opposite direction (the first rotating body 6a).
(Higher speed is desirable).

Then, when a large-diameter crushed material M such as a lump is put into the hopper 4 communicating with the raw material charging box 11 in the first rotating body 6a on the left side in the figure, the crushed material M is Inside the first rotating body 6a, it gradually moves to the crushing chamber 10 side by rotation of a screw provided on the outer periphery of the first drive shaft 12 of the first rotating body 6a (operation of the screw member 15). And the raw material input window of the first crusher 5a
From 17, it is moved and dropped into the input space 70 (crushing gap 7) between the crushing surfaces 40 of the first crushing machine 5 a and the second crushing machine 5 b, and the first and second crushing machines 5 a and 5 b rotate relatively. The crushed material W having a predetermined particle size smaller than the gap width D of the crushing gap 7 slid and adjusted by the operation described below is dropped and discharged to the chute 8 from between the first and second crushing machines 5a and 5b.

The details of the crushing operation will be described below. The material to be crushed M which is moved and dropped into the crushing chamber 10 from the material input window 17 of the first rotating body 6a is dropped to a predetermined thickness (high) by the unit substrate 54, the pedestals 56, 56a,. Sa) set unit tooth plate 53,
After being dropped and loaded into the charging space 70 on the inner edge side of 53a, the material to be crushed M rolls on the inner edge of the collective unit tooth plates 53, 53a of the first and second crushing machines 5a, 5b which rotate relatively in reverse. I do. Collective unit tooth plate
The inner peripheral side of the divided blades 57, 57a,.
, The part (one or both ends) of the material to be crushed M is located in the adjacent tooth gap 71 of one or both of the first and second crushing machines 5a, 5b and the unitary tooth plates 53, 53a,. The first and second crushing plates 5a and 5b which are fitted and rotated relatively in the reverse direction are subjected to a shearing action to break and crush. The broken crushed material M fitted into one of the first and second crushing plates 5a and 5b is carried upward according to the rotation of the first and second crushing plates 5a and 5b. It falls or rolls on the way and moves below the input space 70. Among the crushed materials to be crushed M, the particle size is the first and second crushers 5a and 5b.
Those having a gap width D between them fall from the crushing gap 7 between the two as crushed materials W from the crushing chamber 10 to the chute 8, and those having a particle size larger than the gap width D stay in the crushing chamber 10 and are collected in units. Rolls again on the inner edges of the tooth plates 53, 53a,..., And the crushing action is continued. Therefore, since the crushed material W corresponding to the gap width D between the first and second crushing machines 5a and 5b is discharged, the crushed material W
Has a particle size of a coarsely crushed product and a partially crushed product partially containing a granular material.

Next, the adjustment of the particle size and the change of the second crusher 5b due to the very hard crushed material M will be described. As described above, the second crushing plate 5b is advanced by the cylinders 26 and 26a, and the second crushing plate 5b is set at a predetermined position by the stoppers 28 and 28a to perform the crushing operation. Since W is discharged according to the set width of the gap width D or is recirculated to the charging space 70, the position of the second crushing machine 5b,
The maximum particle size of the crushed material W is set by the size of the gap width D.
On the other hand, the second crusher positioned at a desired gap width D
5b is always pressed by the cylinders 26 and 26a toward the opposing first crushing plate 5a, but when the crushed material M is very hard and large, a pair of opposing first and second crushing plates 5a is used. When the object to be crushed M is bitten and rotated at 5b, the cylinder 26,
The second crusher 5b retreats slightly and rotates against the pressing force of 26a. After the crushed material M returns to the charging space 70,
By repeatedly receiving the crushing action, the residual stress accumulates in the material to be crushed M and is partially crushed at first, and finally crushed to a desired particle size.

Next, the set unit tooth plate 53 in the crushing action,
The external force, stress, etc. acting on 53a will be described. When an external force acts on the material to be crushed M by the crushing action of the pair of opposing first and second crushers 5a and 5b, the first and second crushers 5
A reaction and a reaction force act on the divided blades 57, 57a,... of a and 5b, and the stress is generated. Since the crushed material M is mainly bitten by the divided blades 57, 57a and the pedestals 56, 56a, reaction force and the like also act on them, and fixing bolts 58, 58a,.
9, 59a…, 60, 60a…
The reaction force acting on the pedestals 56, 56a... Also acts on the inner periphery of the flange receiver 52 of the base 51 where the outer peripheral sides of the pedestals 56, 56a. Further, the reaction force is divided blades 57, 57a, pedestal 5
6, 56a... Also act on the unit board 54. Even in this state, since the unit board 54 is in contact with the inner periphery of the
Also acts on the inner circumference of 52. Therefore, the reaction force acting on the divided blades 57, 57a... And the pedestals 56, 56a.
55, 55a ..., 58, 58a ..., 59, 59a ..., 60, 60a ... and also acts as a stress on the flange support 52 and the unit substrate 54, etc., and a part of the stress is integrated with the base 51 into a ring-shaped solid. It acts on the collar guard 52 and bears the burden.

Next, measures for abrasion of the divided blades 57, 57a,... Will be described. There are two types of countermeasures.
Means for replacing the split blades 57, 57a when the 57a is worn;
There is a means for reducing the wear itself of the divided blades 57, 57a.
As a countermeasure against wear, the structure of the divided blades 57, 57a,... Is, as described above, a set unit tooth plate 53, 53a.
And the set unit tooth plates 53, 53a.
... are the unit substrate 54, the pedestals 56, 56a ... and the divided blades 57, 57a ...
It is a structure made detachable by the three members. In this structure, the unit board 54 of the collective unit tooth plates 53, 53a,... Is detached from the front side of the base 51, and specifically, the divided blade 57,
The bolts 60, 60a are operated from the adjacent tooth gaps 71a between them, and then the pedestals 56, 56a are removed from the rear side of the detached collective unit tooth plates 53, 53a. 56a…
..., the divided blades 57, 57a are removed from the
a Exchange…. In addition, the base 51 and the collective unit tooth plates 53, 53a ...
Are bolts that are located away from the crushing surface 40 side, and are attached to the unit substrate 54, the pedestals 56, 56a, and the divided blades 57, 57a.
55, 55a... 58, 58a..., 59, 59a..., The crushing surface 40 side is a screw portion and the head is on the back side, the head is not damaged by the crushing action, and there is no bearing in detachability.

As a countermeasure against the wear of the divided blades 57, 57a... Themselves, the divided blades 57, 57a.
Part of ... is made of another material. That is, as shown in FIG. 13, ceramic rods 80, 80a which are members having low abrasion.
.. Are buried in the thickness direction of the divided blades 57, 57a. The divided blades 57, 57a are gradually worn from the surface, but when the ceramic rods 80, 80a are exposed, the rods 80, 80a are brought into contact with the material M to be crushed, and the crushing action is performed. Done. In this operation, the wear of the rods 80, 80a... Is low, so that the wear around the rods is relatively reduced.
... Wear is reduced overall.

[0024]

In short, according to the present invention, since the pair of first and second crushing plates 5a and 5b having the crushing gap 7 having the predetermined gap width D are relatively erected, the crushing and crushing are performed to less than the gap width D. The crushed material W can be naturally dropped and discharged from between the first and second crushing plates 5a and 5b, and the first and second crushing plates 5a and 5b have a gap width D and face each other. Therefore, no power loss or wear occurs between the two non-contact crushers, and at least one of the first and second crushers 5a and 5b is rotatable, so that the first and second crushers performing the crushing action are performed. Since the boards 5a and 5b are rotating, the efficiency can be improved by continuous crushing action. Further, since the gap width D can be adjusted by making the other second crushing machine 5b movable with respect to the first crushing machine 5a, the particle size of the crushed material W to be discharged is determined. First and second crushers 5a, 5b
By adjusting the gap width D between them, it is possible to easily obtain the crushed material W having a desired particle size.

Further, the first and second crushing plates 5a and 5b can be moved relative to each other by the pressing force of the cylinders 26 and 26a. The second crushing plate 5b can be easily moved when the crushing surface 5 of the first and second crushing plates 5a and 5b is maintained or when the crushing surface 40 of the first and second crushing plates 5a and 5b is maintained. (2) Position adjustable stoppers 28 and 28a are provided to regulate the travel of the crusher 5b.
By adjusting the stoppers 28 and 28a, the gap width D, which is a particle size determining factor, can be easily set to a desired value, and the second crushing plate 5b is set outward at the time of crushing, that is, in the direction in which the gap width D increases. Even if stress is generated, the second crushing machine 5b can be held at a substantially constant position by the pressing action of the cylinders 26 and 26a. Further, when the extremely hard crushed material M is mixed, The second crushing machine 5b retreats against the pressing force of 26a, and it is possible to prevent the second crushing machine 5b, in particular, the collective unit tooth plates 53, 53a,...

The crushing gap 7 of the first and second crushers 5a and 5b
Since the crushing surface 40 is set in a ring shape so as to form the central part of the crushing surface 70 as a charging space 70, the distance between the charging spaces 70 at the inner edge of the crushing surface 40 is widened, and a large crushed material M can be charged. In addition, since the material introduction window 17 for the material M to be crushed into the introduction space 70 is provided at the center of the first crushing machine 5a, the crushing gap 7 between the pair of first and second crushing machines 5a and 5b is covered. The crushed material M can be easily charged.

Further, since the first drive shaft 12 is rotatably supported in the raw material charging box 11 and the screw member 15 is provided on the outer periphery of the first drive shaft 12, a pair of first and second crushers are provided. 5a,
The movement of the material to be crushed M in the direction of the input space 70 between 5b can be facilitated, and the material input box 11 and the input space are provided at the center of the first crusher 5a attached to the tip of the first drive shaft 12. Since the raw material charging window 17 communicating with 70 is provided, the material to be crushed M moved by the operation of the first drive shaft 12 can be easily subsequently charged from the raw material charging window 17 into the charging space 70. Since the second crushing plate 5b is rotatable in the opposite direction as compared with the rotation direction of the first crushing plate 5a, the second crushing plate 5b is rotated in the opposite direction to the first crushing plate 5a for charging the material to be crushed M. Thus, the relative rotational force can be reliably obtained. Further, since the hopper 4 is provided in the raw material charging box 11, the crushed material M charged into the hopper 4 is sequentially transferred to the crushing gap 7 between the first and second crushing plates 5a and 5b. The practical effect is enormous, for example, the crushing operation can be easily performed only by charging the material to be crushed M into the crusher.

[Brief description of the drawings]

FIG. 1 is an overall front view of a crusher according to the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a left side view of FIG.

FIG. 4 is a right side view of FIG. 1;

FIG. 5 is a vertical sectional view centering on a crushing chamber.

FIG. 6 is a cross-sectional view showing a positional relationship and a moving relationship between first and second crushers.

FIG. 7 is a horizontal sectional view of FIG. 5;

FIG. 8 is a front view showing a moving frame.

FIG. 9 is a plan view of FIG.

FIG. 10 is a right side view of FIG.

FIG. 11 is a right side view and a vertical sectional view of the first crushing machine.

FIG. 12 is a side view and a sectional view of a main part of the first crushing machine.

FIG. 13 is a front view and a sectional view of a split blade.

[Explanation of symbols]

 4 Hopper 5a 1st crusher 5b 2nd crusher 7 Crushing gap 11 Material input box 12 First drive shaft 15 Screw member 17 Material input window 26, 26a Cylinder 28, 28a Stopper 40 Crushing surface 70 Input space D Gap width M Cover Crushed material

Claims (5)

[Claims] 1. A pair of first and second crushing plates having a crushing gap having a predetermined gap width are provided upright, and at least one of the first and second crushing plates is rotatable and one of the first and second crushing plates is rotatable. A crushing apparatus characterized in that the other second crushing machine is movable with respect to the crushing machine so that the gap width can be adjusted. 2. A position in which the other second crusher is movable to the one first crusher by the pressing force of a cylinder and the amount of advance of the second crusher is regulated from the front side of the second crusher. 2. An adjustable stopper is provided.
A crushing device as described. 3. A crushing surface is set in a ring shape so that a central portion of a crushing gap between the first and second crushing disks is formed as a charging space, and a central portion of one of the first crushing disks is provided with a cover for the charging space. 3. A crushed material input window is provided.
A crushing device as described. 4. A first driving shaft is rotatably supported in a raw material charging box, and a screw member is provided on an outer periphery of the first driving shaft, and a center of a first crushing machine attached to a tip of the first driving shaft is provided. 4. A raw material charging window which communicates a raw material charging box with a charging space in the portion, wherein the second crushing disk is rotatable in a reverse direction relative to the rotation direction of the first crushing disk. Crushing equipment. 5. The crusher according to claim 4, wherein a hopper is provided in the raw material charging box.