JP2002263520A - Granular material grinding apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a granular matter grinding apparatus capable of reducing the replacing frequency of the parts of a grinding means and capable of simply adjusting the particle size of a ground granular material. SOLUTION: The rotary member (16) of the grinding means (15) is supported on a housing (2) in a freely rotatable manner and the fixing member (17) of the grinding means (15) is mounted on the housing (2). The housing (2) is constituted of first and second housing members (3) and (4) to arrange a gap adjusting member (24) between both housing members (3) and (4). The gap adjusting member (24) is mounted in the first housing member (3) in a way that it rotates freely but does not move back and forth and screwed together with the second housing member (4). The fixing member (17) is allowed to advance and retreat in the rotary axis direction of the rotary member (16) by rotating the gap adjusting member (24) to regulate the gap between the fixing member (17) and the rotary member (16).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for crushing rice husks, rice, soybeans, wood chips, wood chips and other granular materials. More specifically, the present invention can reduce the frequency of replacing parts of crushing means. The present invention relates to an apparatus for crushing granular materials that can easily adjust the particle size of crushed powders.

[0002]

2. Description of the Related Art For example, since rice hulls contain vitreous material, it is required that the rice husks be sufficiently ground to be effectively used as fertilizers. As a device for crushing granular organic matter such as rice hulls of this kind, conventionally, a housing is provided with a supply unit, a crushing unit, and a discharge unit, and the crushing unit includes a rotating member having a conical outer surface; And a mortar-shaped fixing member disposed so as to face the outer surface. The granular material supplied into the housing from the supply means is crushed between the rotating member and the fixed member, and the crushed powder is discharged from the discharge means.

[0003]

The above-mentioned conventional crushing means generates high heat of, for example, about 100 ° C. due to friction when crushing the granular material. If the surface of the rotating member or the fixed member is worn due to friction at this time, the granular material cannot be sufficiently crushed, and the discharged granular material becomes larger than a desired particle size. For this reason, it is necessary to replace the rotating member and the fixing member with new ones according to the progress of the wear,
There is a problem that these replacement operations are complicated and replacement parts are expensive. Further, conventionally, the particle size of the powdered material crushed and discharged by the crushing means has been adjusted by changing a discharge speed by replacing a screw feeder provided in the discharging means. However, this screw feeder is usually mounted inside the housing at the tip of the rotating member, and when replacing the screw feeder, a part of the housing must be disassembled, and the particle size cannot be easily adjusted. Was.

[0004] The present invention is to solve the above problems, to provide a device for crushing granular material, which can reduce the frequency of replacement of parts of the crushing means, and can easily adjust the particle size of the crushed powder. Is a technical task.

[0005]

In order to solve the above-mentioned problems, the present invention will be described with reference to FIGS. 1 to 5 showing an embodiment of the present invention. It is what was constituted. That is, the housing (2), the supply means (10) for supplying the particulate matter (32) to the internal space of the housing (2), and the crushing means (15) for crushing the particulate matter (32)
And a discharging means (23) for discharging the granules (33) generated by the crushing to the outside of the housing (2). The crushing means (15) is provided with a rotating member (16) and A fixing member (17) arranged opposite to the outer surface of the rotating member (16), the rotatable member (16) being rotatably supported by the housing (2), and the fixing member (17) being Is mounted on the housing (2), and at least one of the rotating member (16) and the fixed member (17) is moved forward and backward in the direction of the rotation axis of the rotating member (16), so that the two members (16, 17) are Characterized in that the gap is adjustable.

[0006]

When the crushing device is used for a long period of time, the surface of the crushing means wears and the gap between the rotating member and the fixed member increases. Therefore, when the gap becomes larger than a predetermined value, at least one of the rotating member and the fixed member is moved forward and backward in the direction of the rotation axis of the rotating member. As a result, the gap between them is narrowed, and the particulate matter is crushed in the same gap as before wear without replacing the rotating member or the fixed member. Further, when at least one of the rotating member and the fixed member is moved forward and backward to change the gap between the two, the degree of crushing the granular material differs. That is, when the gap between the rotating member and the fixed member is widened, the passage from the gap to the discharging means is also widened, and the above-mentioned granular material and the crushed powder are easily moved to the discharging means. As a result, the particulate matter is discharged without being sufficiently crushed, and the particle size of the obtained granule increases. Conversely, when the gap becomes narrow, the passage from the gap to the discharge means also becomes narrow, and it becomes impossible to easily move to the discharge means. As a result, the granular material is sufficiently crushed, and the particle size of the discharged granular material is reduced.

[0007] Specific structures for moving the rotating member and the fixed member forward and backward include, for example, the following. (B) The fixing member (17) is mounted on the housing (2) so as to be non-rotatable and reciprocable, and the housing (2) and the fixing member (1
7), a gap adjusting member (24) is rotatably and non-removably mounted on one side, and the gap adjusting member (24) is screwed on the other side. For example, when the gap adjusting member is rotatably and non-removably mounted on the housing and the gap adjusting member is screwed to the fixing member, when the gap adjusting member is rotated, the fixing member screwed to the gap adjusting member is attached to the housing. Since the rotation member is mounted so as not to rotate, the rotation member moves forward and backward in the axial direction of the rotation member, and the gap between the rotation member and the rotation member is adjusted.

(B) The housing (2) is composed of a first housing member (3) and a second housing member (4),
This second housing member (4) is connected to the first housing member (3).
The first housing member (3) rotatably supports the rotating member (16), and the second housing member (4) supports the fixing member (17).
Is fixed, and a gap adjusting member (24) is rotatably and non-removably mounted on the one housing member (3), and this gap adjusting member (24) is screwed to the other housing member (4).
In this case, when the gap adjusting member is rotated, the second housing member advances and retreats with respect to the first housing member because one of the housing members screwed thereto is non-rotatably mounted on the other housing member. Then, the gap between the rotating member supported by the first housing member and the fixed member fixed to the second housing member is adjusted.

(C) The fixing member (17) is connected to the housing (2).
To the housing (2)
The gap adjusting member (24) is screwed into the fixing member (1) at a pitch different from the screwing.
Screw into 7). In this case, when the gap adjusting member is rotated, the fixing member moves forward and backward by an amount different from the screw pitch with respect to the housing, and the gap with the rotating member is adjusted.

(D) The housing (2) is composed of a first housing member (3) and a second housing member (4),
This second housing member (4) is connected to the first housing member (3).
The first housing member (3) rotatably supports the rotating member (16), and the second housing member (4) rotatably supports the fixed member (17).
And a gap adjusting member is attached to the first housing member (3).
(24) and the gap adjusting member (24) is screwed to the second housing member (4) at a different pitch from the screwing. In this case, when the gap adjusting member is rotated,
The second housing member advances and retreats by an amount different from the first housing member by the screw pitch, and the gap between the rotating member supported by the first housing member and the fixing member fixed to the second housing member is adjusted. You.

(E) A gap adjusting member is provided on the housing (2).
(24) is screwed into the gap adjusting member (24), and the rotating member (16) is supported so as not to move forward and backward and to be rotatable. In this case, when the rotary operating member is rotated, the rotary member moves forward and backward with the rotary operating member with respect to the housing.

(F) The fixing member (17) is connected to the housing
(2) is fixed via at least one thin plate (37), and a part or all of the thin plate (37) is configured to be detachable. In this case, when the thin plate is mounted, the fixing member separates from the housing, and when the thin plate is removed, the fixing member approaches the housing. As a result, the fixing member moves forward and backward with respect to the rotating member by the thickness of the thin plate to be detached.

(G) The housing (2) is composed of a first housing member (3) and a second housing member (4),
The first housing member (3) rotatably supports the rotating member (16) and the second housing member (4).
The second housing member is fixed to the fixing member (17).
(4) is fixed to the first housing member (3) via at least one thin plate (37), and part or all of the thin plate (37) is configured to be detachable. In this case, when the thin plate is mounted, the two housing members are separated from each other, and when the thin plate is removed, they come close to each other. As a result, the fixing member moves forward and backward with respect to the rotating member by the thickness of the thin plate to be removed.

However, the present invention is not limited to the above specific structures as long as at least one of the rotating member and the fixed member can be moved forward and backward.

[0015]

1 to 3 show a first embodiment in which the present invention is applied to a rice husk crusher, FIG. 1 is a partial sectional view of the crusher, and FIG. Sectional view taken along line II, FIG.
FIG. 3 is a sectional view taken along line III-III in FIG. 1.

As shown in FIG. 1, a housing (2) of the grinding device (1) comprises a first housing member (3) and a second housing member (4), and the first housing member (3). Is fixed to a speed reducer (5), and a second housing member (4) is attached to the first housing member (3) via a key (6) so as to be non-rotatable and advanceable / retractable. A movement limiting bolt (7) is fixed to a lower portion of the second housing member (4),
Connect the tip of the movement limiting bolt (7) to the first housing member.
It protrudes into the left and right long engagement grooves (8) formed in (3).

The second housing member (4) comprises a right housing part (4R) and a left housing part (4L) fixed to each other. A bracket (9) is fixed to the upper surface of the left housing part (4L), and a hopper (10) serving as a supply means is supported on the bracket (9), and a lower end opening (11) of the hopper (10) is provided. Is projected below the upper surface of the left housing part (4L) to face the internal space of the housing (2).

In the vicinity of the upper surface of the left housing part (4L), an exhaust port for communicating the internal space of the housing (2) with the outside air is provided.
(12) is provided. As shown in FIGS. 1 and 2, the right housing part (4R) is also provided with an exhaust passage (13) in the upper part and the lower part in a horizontal direction, respectively, so that the housing (2)
The inner space of the is communicated with the outside air. On the left end surface of the right housing part (4R), a drain passage (14) is formed downward from the lower exhaust passage (13).

In the internal space of the housing (2), crushing means (15) having a frusto-conical shape with shaving teeth (not shown) formed on the outer surface.
Of the rotating members (16) are accommodated. A drive shaft (18) fixed to the right end of the rotating member (16) is rotatably supported by a first housing member (3) via a bearing (not shown), and is rotatable inside the speed reducer (5). It is linked to the input shaft (19). This input shaft (19) is connectable to an output shaft (not shown) of the prime mover. Reference numeral (20) denotes an oil seal mounted between the drive shaft (18) and the first housing member (3).

On the left end surface of the second housing member (4), a fixing member (17) of crushing means (15) formed in a mortar shape and having shaving teeth (not shown) on the inner surface is provided with the rotating member. It is fixed facing the outer surface of the member (16). A discharge nozzle (21) is fixed to the left end surface of the fixing member (17), and a screw feeder (22) fixed to the left end of the rotating member (16) is protruded into the discharge nozzle (21). Yes, this discharge nozzle (2
1) and the screw feeder (22) constitute a discharging means (23).

A cylindrical gap adjusting member (24) is mounted outside the first housing member (3). Recessed grooves (25) are formed on the inner peripheral surface of the gap adjusting member (24) and the outer peripheral surface of the first housing member (3), respectively.
As shown in FIGS. 1 and 3, by filling a large number of steel balls (26) over the two concave grooves (25), the gap adjusting member (24) is moved relative to the first housing member (3). It is rotatable and cannot be moved forward or backward.

A screw portion (27) is formed on the outer peripheral surface of the gap adjusting member (24) on the left side, and is screwed to the right housing portion (4R) of the second housing member (4). . Also,
On the right side of the outer peripheral surface of the gap adjusting member (24), a handle (28) for rotating operation is fixed.

As shown in FIG. 3, the gap adjusting member (24)
Eight engaging recesses (29) are provided on the outer peripheral surface at the same interval. On the other hand, the second housing member (4) is provided with an indexing pin (30) at a position facing one of the concave portions (29), and is pressed by a resilient spring (31), and this indexing pin is The tip of (30) is configured to engage with the opposed recess (29).

Next, an operation of crushing rice hulls using the above crushing apparatus will be described. When the input shaft (19) of the speed reducer (5) is driven by a motor (not shown), the drive shaft (18) rotates the rotating member (16) around a horizontal axis. Next, when rice hulls (32), which are granular organic substances, are charged into the hopper (10), the rice hulls (32) are opened at the lower end of the hopper (10) (11).
Is guided into the internal space of the housing (2) and crushed between the rotating member (16) and the fixed member (17) of the crushing means (15), and then turned into a granular material (33). Screw feeder (2
It is discharged from the discharge nozzle (21) by 2).

The moisture contained in the rice hulls evaporates due to the frictional heat generated by the crushing, and the water vapor is discharged to the outside from the exhaust port (12) and the exhaust path (13). For this reason, the pressure in the housing (2) is prevented from rising, and the hopper (10)
The rice hull (32) is prevented from getting wet in the inside, and the so-called bridge phenomenon is prevented from occurring. Further, the water generated by the condensation of the water vapor and the like is smoothly discharged from the drain passage (14), and the water is prevented from being accumulated in the housing (2).

The crushing operation crushes the rice hulls into a powder having a predetermined particle size. With the crushing operation, the shaving teeth formed on the surface of the crushing means (15) gradually wear out. The gap between the rotating member (16) and the fixed member (17) gradually widens. When the gap between the two (16, 17) widens, the passage from this gap to the screw feeder (22) of the discharge means (23), that is, the tip of the rotating member (16) and the fixed member (17) The powder (33) obtained by crushing the chaff (32) is easily moved to the screw feeder (22). As a result, the rice husk (32) is discharged without being sufficiently crushed, so that the particle size of the powder (33) discharged from the discharge nozzle (21) does not become sufficiently small.

Then, when the obtained granular material becomes larger than a predetermined particle size, the gap between the rotating member (16) and the fixed member (17) is adjusted by the following operation. First, the index pin (30) is pulled up against the pressing force of the resilient spring (31), and the tip of the index pin (30) is detached from the engaging recess (29). When the handle (28) is rotated in this state,
The first housing member (3) is provided without the gap adjusting member (24) moving back and forth in the direction of the rotation axis of the rotating member (16).
Rotate around. Due to the rotation of the gap adjusting member (24), the second housing member (4) screwed into the gap adjusting member (24)
Since it cannot rotate with respect to the first housing member (3), it retracts in the direction of the rotation axis of the rotation member (16). As a result,
The fixing member (17) of the crushing means (15) is a second housing member (4).
Together with the rotating member (16). And
When the fixing member (17) comes close to the proper dimension, the tip of the index pin (30) is engaged with the engaging recess (29), and the gap adjusting member (24) is held in a non-rotatable state.

The engaging recess (29) is provided with the gap adjusting member.
Since the fixing member (17) is formed at equal intervals at eight locations around the (24), the moving dimension of the fixing member (17) is adjusted in units of ８ of the pitch of the screw portion (27). The unit of adjustment of the movement dimension is arbitrarily set according to the number of the formed concave portions (29) and the pitch of the screw portions (27). If the movement dimension of the second housing member (4) is going to become excessively large, the tip of the movement limiting bolt (7) is connected to the engagement groove.
The end of (8) is abutted, and the movement of the second housing member (4) is stopped. Thereby, the second housing member
Excessive movement of (4) is restricted, and interference with the rotating member (16) is prevented.

In the above description, the operation for returning to the original gap when the gap between the fixed member and the rotating member becomes large due to the wear of the crushing means has been described. The same applies to the case where the particle size of the powder discharged from the apparatus is adjusted. That is, when reducing the particle size, the same operation as above is performed to fix the fixing member (17) to the rotating member (16).
When the grain size is to be increased, the handle (28) is rotated in the opposite direction to separate the fixing member (17) from the rotating member (16).

When the fixing member (17) is brought close to the rotating member (16) as described above, the gap between the two members (16, 17) becomes narrow, and the passage from this gap to the discharge means (23) becomes narrow. Therefore, the rice husk (32) and the granular material (33) cannot be easily moved to the discharging means (23). Moreover, the discharge means (23) is provided with the discharge nozzle (2
1) The length of entry of the screw feeder (22) into the inside becomes long, so that the discharge load increases. As a result, the chaff (32) is sufficiently crushed and discharged, so that the obtained granular material (33)
Has a finer grain size. In addition, the fixing member (17) is
In the case of separating from (6), the gap between the two (16, 17) is widened and the passage from this gap to the discharge means (23) is also widened, and the chaff (32) and the granular material (33) are Movement to the discharging means (23) is facilitated. In addition, since the discharge length of the screw feeder (22) into the discharge nozzle (21) of the discharge means (23) is reduced, the discharge load is reduced. As a result, rice husk (3
Since the crushing of 2) is not sufficiently performed and is discharged, the particle size of the obtained granular material (33) becomes coarse.

In the first embodiment, the gap adjusting member is rotatably and non-removably mounted on the first housing member and is screwed to the second housing member. May be screwed onto the second housing member so as to be rotatable and non-removable. The two housing members may be screwed to each other, and the screw pitches of the screw portions may be different from each other. In this case, different pitches refer to different dimensions that are advanced by one rotation, or to advance in mutually opposite directions (that is, to form screws that are opposite to each other). Further, in the first embodiment, the gap adjusting member is disposed between the two housing members. However, in the present invention, it is sufficient that the fixing member of the crushing means can be moved. And may be arranged between them.

FIG. 4 is a partial cross-sectional view of a grinding device according to a second embodiment of the present invention. In the second embodiment, FIG.
As shown in the figure, the second housing member (4) is connected and fixed to the speed reducer (5) through the support arm (34), and therefore, the second housing member (4) is also fixed to the speed reducer (5). It is immovable with respect to the first housing member (3) fixed to.

[0033] Inside the first housing member (3),
A cylindrical gap adjusting member (24) is disposed, and is screwed to the first housing member (3) with a screw portion (27) formed on the right side of the outer peripheral surface of the gap adjusting member (24). is there. A handle (28) is fixed to the left side of the outer peripheral surface of the gap adjusting member (24), and the handle (28) is attached to the first housing member.
It is configured to protrude outward from between (3) and the second housing member (4) so that it can be operated from the outside.

A drive shaft (18) is inserted inside the gap adjusting member (24).
Via the two bearings (35, 36), the gap adjusting member (24) is supported so as not to move in the direction of the rotation axis and to be rotatable. Therefore, the rotating member (16) of the crushing means (15) fixed to the left end of the drive shaft (18) is also unable to move forward and backward with respect to the gap adjusting member (24), and is rotatably supported. Have been. The other configuration is the same as that of the first embodiment, and the description is omitted.

In the crushing device (1), the gap between the rotating member (16) of the crushing means (15) and the fixed member (17) is adjusted by the following procedure. First, similarly to the first embodiment, the indexing pin (30) is pulled up against the pressing force of the resilient spring (31), and the tip of the indexing pin (30) is disengaged from the engaging recess (29).
When the handle (28) is rotated in this state, the gap adjusting member (24) to which the handle (28) is fixed is screwed with respect to the first housing member (3). Then, as the gap adjusting member (24) moves forward and backward, the drive shaft (18) supported by the gap adjusting member (24) and the rotating member (16) of the crushing means (15) move forward and backward together, and as a result, the rotating member (16) and fixing member (1
7) is adjusted.

FIG. 5 shows a third embodiment of the present invention.
5A is a partial cross-sectional view of an apparatus for crushing granular material, and FIG.
It is an expanded sectional view of the B section of (a). In the third embodiment, the housing (2) is composed of a first housing member (3) and a second housing member (4), and the first housing member (3) is fixed to the speed reducer (5). In addition, the first housing member (3) rotatably supports a rotating member (16) of the crushing means (15).

As shown in FIG. 5 (b), the second housing member (4) is fixed to the first housing member (3) via a plurality of thin plates (37). On the left end face of 4), crushing means (15) through a plurality of similar thin plates (37)
The fixing member (17) is fixed. The thin plates (37) are configured to be detachable one by one by loosening the fixing bolts (38). By attaching or detaching the thin plate (37), the fixing member (17) of the crushing means (15) approaches or separates from the rotating member (16) by the thickness of the thin plate (37).

In the third embodiment, thin plates (37) are interposed on the left and right end surfaces of the second housing member (4). However, in the present invention, if the gap between the fixed member and the rotating member can be adjusted. Well, between the housing and the fixing means, the first
What is necessary is just to comprise so that a thin plate can be attached to and detached from at least one between a housing member and a 2nd housing member.

[0039]

Since the present invention is constructed and operates as described above, it has the following effects.

(1) When the crushing means is worn and the gap between the rotating member and the fixed member is widened and cannot be sufficiently crushed, at least one of the rotating member and the fixed member is replaced with the rotating member. The gap between the two can be narrowed to the conventional gap only by moving forward and backward in the direction of the rotation axis, and the granular material can be crushed well as before the abrasion. Therefore, the frequency of replacement of the rotating member and the fixed member can be reduced, so that maintenance can be simplified and the cost required for maintenance can be reduced by omitting replacement parts.

(2) By moving at least one of the rotating member and the fixed member back and forth and changing the gap between the two, the particle size of the crushed and discharged powder can be changed. No work such as disassembling the device and replacing the screw feeder as in the prior art is required, and the particle size of the obtained granular material can be easily adjusted.In addition, since it does not require a plurality of types of screw feeders, it is implemented at low cost it can.

(3) According to the invention of claims 2 to 6, between the housing and the fixing member, between the first housing member and the second housing member, or between the housing and the rotating member. Since the gap adjustment member is arranged, it is a very simple operation just to rotate this gap adjustment member,
The gap between the rotating member and the fixed member can be adjusted without disassembling the crushing device.

(4) In the invention of claim 7 or claim 8, at least one thin plate is mounted between the housing and the fixing member or between the first housing member and the second housing member. It can be implemented only at low cost. Moreover,
The gap between the rotating member and the fixed member can be easily adjusted by a simple operation of simply attaching or detaching a part or all of the thin plate.

[Brief description of the drawings]

FIG. 1 is a partial cross-sectional view of an apparatus for crushing particulate matter, showing a first embodiment of the present invention.

FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 3 is a sectional view taken along line III-III in FIG.

FIG. 4 is a view corresponding to FIG. 1, showing a second embodiment of the present invention.

FIG. 5 shows a third embodiment of the present invention, and FIG.
FIG. 5B is an enlarged sectional view of a portion B in FIG. 5A.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Granulation device of a granular material, 2 ... Housing, 3 ... 1st housing member, 4 ... 2nd housing member, 10 ... Supply means
(Hopper), 15: crushing means, 16: rotating member, 17: fixing member, 23: discharging means, 24: gap adjusting member, 32: rice hull (granular material), 33: powder and granule.

Claims (8)

[Claims] 1. A housing (2) and the housing (2)
Supply means (10) for supplying the granular material (32) to the internal space of the crushing means (15) for crushing the granular material (32), and the powder (33) produced by the crushing Discharging means (23) for discharging the crushing means (15) to the outside of the housing (2). The crushing means (15) comprises a rotating member (16) and the rotating member (16).
And a fixing member (17) arranged so as to face the outer surface of the housing. The rotating member (16) is rotatably supported by the housing (2), and the fixing member (17) is fixed to the housing.
(2), and at least one of the rotating member (16) and the fixing member (17) is
By moving the rotating member (16) forward and backward in the direction of the rotation axis, both (1)
An apparatus for crushing particulate matter, characterized in that the gap between 6 and 17) is adjustable. 2. The fixing member (17) is mounted on the housing (2) so as to be non-rotatable and advanceable / retractable, and a gap adjusting member (24) is provided on one of the housing (2) and the fixing member (17). The apparatus for crushing granular materials according to claim 1, wherein the gap adjusting member (24) is screwed to the other side so as to be rotatable and non-movable. 3. The housing (2) comprises a first housing member (3) and a second housing member (4), and the second housing member (4) is rotated by the first housing member (3). The first housing member (3) rotatably supports the rotating member (16), and the second housing member (4).
The gap adjusting member (24) is rotatably and non-removably mounted on the one housing member (3), and the gap adjusting member (24) is attached to the other housing member (3). The apparatus for crushing granular materials according to claim 1, which is screwed into (4). 4. The fixing member (17) is mounted on the housing (2) so as to be non-rotatable and retractable, and a gap adjusting member (24) is screwed into the housing (2). 2. The apparatus for crushing granular material according to claim 1, wherein the fixing member (17) is screwed at a pitch different from the screwing. 5. The housing (2) comprises a first housing member (3) and a second housing member (4), and the second housing member (4) is rotated by the first housing member (3). The first housing member (3) rotatably supports the rotating member (16), and the second housing member (4).
The gap adjusting member (24) is screwed to the first housing member (3), and the gap adjusting member (24) is screwed into the first housing member (3) at a pitch different from that of the screw. 2 screwed to the housing member (4),
The apparatus for crushing granular material according to claim 1. 6. A gap adjusting member (24) provided on the housing (2).
And the rotating member is fixed to the gap adjusting member (24).
2. The apparatus according to claim 1, wherein the supporting means (16) is rotatably supported so as not to move forward and backward.
A device for crushing a granular material according to item 1. 7. The fixing member (17) is connected to the housing (2).
2. The apparatus for crushing granular material according to claim 1, wherein the apparatus is fixed via at least one thin plate (37), and a part or all of the thin plate (37) is detachable. 8. The housing (2) comprises a first housing member (3) and a second housing member (4), and the rotating member (16) is rotatable on the first housing member (3). And the fixing member (17) is fixed to the second housing member (4), and the second housing member (4) is connected to the first housing member (3).
The apparatus for crushing granular material according to claim 1 or 7, wherein the apparatus is fixed via at least one thin plate (37), and a part or all of the thin plate (37) is detachably configured.