JP2000126627A - Granulating device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily adjust the clearance between a fixed tooth and a hammer. SOLUTION: Granulation chambers 15 and 16 are arranged respectively at the upper part and lower part of the casing 7 furnished with a supply port 8 at the top and a discharge port 9 at the bottom. Hammers 17 are furnished respectively in the upper and lower granulation chambers 15 and 16 and revolved on a horizontal shaft, and fixed-tooth blocks 22a and 22b and 22c and 22d having a fixed tooth 12 inside are arranged at the front and rear of the upper granulation chamber 15 and at the front and rear of the lower granulation chamber 16. The respective fixed-tooth blocks 22a, 22b, 22c and 22d are placed on the copper sheet 33 of a supporting plate 32 fixed to the casing 7. Further, clearance adjusting parts 36 are arranged between the blocks 22a, 22b, 22c and 22d and the casing 7 to move both with two bolts.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a granulating apparatus used for granulating a granulated material such as a steel beverage can by crushing the granulated material between fixed teeth and a hammer. In particular, the present invention relates to a granulating apparatus capable of easily adjusting a clearance between a fixed tooth and a hammer.

[0002]

2. Description of the Related Art Today, used steel cans and aluminum cans are collected and recycled as steel and aluminum raw materials, respectively. After separating empty cans such as steel cans and aluminum cans from bottles, PET bottles, and other used containers through a sorter or trommel, place them in a can crusher, and then separate and collect only the steel cans with a magnetic separator. Further, only the aluminum can is separated and collected by an eddy current sorter, and the collected steel can and aluminum can are processed by a can purification system for increasing the purity as a steel material or an aluminum material, respectively. Like that.

In the can purification system, as shown in FIG. 2, an empty can 1 such as a steel can or an aluminum can is sent to a crusher 2 to be crushed to a required size, and then sent to a rotary kiln type roasting furnace 3. The coating, plating and foreign matter on the surface of the empty can 1 are removed by incineration. In this case, when the empty can 1 is a steel beverage can, the aluminum lid is separated from the difference in the coefficient of thermal expansion and the melting point. Then, it is sent to a granulator 4 and crushed and granulated to obtain pellets 5 of a raw material of steel or aluminum having a predetermined particle size.
Are separated into steel pellets 5a and aluminum pellets 5b by the magnetic separation conveyor 6, and are respectively collected.

[0004] Granulation apparatus 4 used in the above-mentioned can purification system
Is a box-shaped casing having a supply port 8 at the upper end and a discharge port 9 at the lower end, as schematically shown in FIGS. 3 and 4 (a) and (b). 7
At the top, a fixed quantity feeder 11 of a rotary paddle type equipped with a charging hopper 10 at the upper end is attached, and fixed teeth 12 are formed in the casing 7 in an arc shape such that the inner surface is on the inner diameter side. A pair of front and rear fixed tooth mounting plates 13a and 13b and 13c and 13d, each of which is provided as a set, is provided as one set, between the lower end portions of the front and rear fixed tooth mounting plates 13a and 13b, and similarly between the fixed tooth mounting plates 13c. 14a and a perforated plate 14b which are respectively disposed between the lower ends of
Granulation chamber 1 having a cylindrical shape in the horizontal direction and formed in the horizontal direction.
5 and 16 are formed in two upper and lower stages, and the upper and lower granulating chambers 15 and 16 are formed.
A drum 18 having a plurality of sector-shaped hammers 17 rotatably mounted on an outer peripheral portion thereof is rotatably arranged in a lateral direction in the left and right direction, and each of the drums 18 is rotationally driven by a driving device (not shown). So that
Further, the clearance between the fixed teeth 12 and the hammer 17 on the outer peripheral portion of the drum 18 in the upper granulation chamber 15 is set to about 60 mm, and the blade 14a has a slit 19 having a width of 60 mm in accordance with the clearance. The clearance between the fixed teeth 12 and the hammer 17 of the drum 18 in the lower granulation chamber 16 is about 40 mm, and the perforated plate 14b has a hole 20 with a diameter of 40 mm. 1 is supplied by the fixed amount supply device 11 and further supplied into the upper granulation chamber 15 through the supply port 8, the fixed teeth 12 and the hammer 17 of the rotating drum 18 in the upper granulation chamber 15. After the primary granulation is performed to the size of the clearance between the fixed teeth 12 and the hammer 17, that is, 60 mm in thickness, Only those having a size that can pass through the slit 19 of FIG. 4a are dropped and supplied to the lower granulation chamber 16, and those that cannot pass through the slit 19 become the upper granulation chamber 15 until they can pass. The granulation is performed between the fixed teeth 12 and the hammer 17 while being repeatedly rotated in the inside, and the one transferred into the lower granulation chamber 16 has the fixed teeth 12 and the hammer having a narrow clearance of 40 mm. The pellets 5 having a particle size of 40 mm or less, which are again crushed and granulated to pass through the holes 20 of the lower perforated plate 14b.
Is discharged from the discharge port 9 and collected.

The rear fixed tooth mounting plate 13b of the upper granulating chamber 15 has a vertical upper part, and the supply port 8 is communicated with the upper end of the opposed front fixed tooth mounting plate 13a so as to be supplied. The empty can 1 is received from the supply port 8 into the upper granulating chamber 15, and the front fixed tooth mounting plate 13 c of the lower granulating chamber 16 is made to have a vertical upper part, and the opposing rear fixed tooth mounting plate 13 c. 13d, the empty cans 1 which are dropped and supplied from the upper granulation chamber 15 can be received, and the drums 18 of the upper and lower granulation chambers 15 and 16 receive the empty cans 1 which have received the fixed cans 12 respectively. It is configured to be rotationally driven in a direction in which it is engaged with the hammer 17.

The upper and lower granulating chambers 15, 16
Inside, when the empty can 1 is crushed and granulated between the fixed teeth 12 and the hammer 17, the fixed teeth 12 and the hammer 17 gradually wear. If the clearance between the hammer 17 is widened, the supplied empty can 1 cannot be granulated to a desired particle size. Therefore, it is necessary to appropriately adjust the clearance between the fixed teeth 12 and the hammer 17. For this reason, conventionally, the fixed tooth mounting plates 13 before and after the upper and lower granulating chambers 15 and 16 are used.
a, 13b and side plates 21 extending in the front-rear direction along the inner surface of the casing 7 on the back surfaces of 13c and 13d.
The fixed tooth blocks 22a, 22b, 22c, 22d are formed by symmetrically providing the fixed tooth blocks 22a, 22b, 22c, 22c.
22d side plates 21a, 21b and 21c, 21
d, a plurality of screw holes 23 are respectively provided at required positions, and long holes 24 extending in the front-rear direction corresponding to the screw holes 23 are formed on both left and right side surfaces of the casing 7.
Through the stud bolt 25 and the fixed tooth block 22
a, 22b, 22c, and 22d are screwed into the screw holes 23 so that each of the stud bolts 25 is elongated.
4 slidably supported in the fixed tooth block 22
a, 22b, 22c, and 22d are arranged so as to be slidable in the front-rear direction in the casing 7, and during operation, the nuts 26 are screwed into the stud bolts 25 and fastened to fix the fixed tooth blocks 22a, 22b, and 22d.
When the clearance between the fixed teeth 12 and the hammer 17 is widened, the nut 26 is loosened and the stud bolt 25 or the casing 7 is fixed. The clearance between the fixed teeth 12 and the hammer 17 is adjusted by pushing the fixed tooth blocks 22a, 22b, 22c and 22d themselves toward the hammer 17 of the drum 18 by human power and hammering through hatches (not shown) provided on the front and rear surfaces so as to be freely opened and closed. I can do it.

[0007] Reference numeral 27 denotes a bearing for supporting a shaft 28 of the drum 18 disposed so as to penetrate the casing 7 to the left and right at positions on the left and right sides of the casing 7, and 29 communicates with the discharge port 9 to support the casing 7. It is a horizontal pedestal provided with an opening 30 to be formed.

[0008]

However, since the fixed tooth blocks 22a, 22b, 22c and 22d have a large weight per block, it is difficult for them to slide in the front-rear direction by human power. As a result, there is a problem that rusting occurs and the frictional force at the time of sliding increases, and it is actually very difficult to adjust the clearance between the fixed teeth 12 and the hammer 17.

Therefore, the present invention is intended to make it easier to adjust the clearance between the fixed teeth and the hammer.

[0010]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a granulating chamber at a vertical position in a box-shaped casing provided with a supply port at an upper end and a discharge port at a lower end. Is formed, and a hammer is rotatably installed in each granulation chamber, and a fixed tooth block formed by protruding a number of fixed teeth inside so as to provide a required clearance between the hammer and the rotation locus of the hammer. Arranged on both front and rear sides, and provided with a saw having a number of slits between the lower end of the fixed tooth block before and after the upper granulation chamber, between the lower end of the fixed tooth block before and after the lower granulation chamber from the slit A perforated plate having a large number of small holes is provided, and the granulated material supplied from the supply port is subjected to primary granulation in the upper granulating chamber by hitting with a fixed tooth and a hammer, and then the lower granulating chamber is passed through the upper granule. At the lower granulation chamber. Banging by the fixed teeth and hammer 2
In a granulating apparatus in which particles having a predetermined particle size after the next granulation are passed through a lower perforated plate and discharged from a discharge port, the granulating chambers in the upper and lower stages are provided on the front side and the rear side of the casing. A clearance for adjusting the clearance between the fixed teeth and the hammer by moving each fixed tooth block in the front-rear direction with respect to the casing in each opening for drawing out each fixed tooth block before and after Parts, and each of the fixed tooth blocks is slidably supported via a copper plate on a support member provided on the casing, and a clearance adjustment part is provided on the outside of the fixed tooth block in the left-right direction of the casing. A support plate attached so as to overhang, a support protrusion attached to the outside of the casing so as to face each of the support plates, a screw hole and a fool hole drilled in the support plate, A push bolt which is screwed so as to penetrate the screw hole and whose tip abuts the support projection, and a pull which is threaded into the screw hole which penetrates the fool hole and penetrates the tip with the support projection. It shall be composed of bolts.

When adjusting the clearance between the fixed teeth and the hammer, the push bolt of the clearance adjusting section is loosened, a required amount is pulled out, and then the pull bolt is tightened, whereby the support plate is drawn to the support projection. The fixed tooth block can be moved in the hammer direction integrally with the support plate.
At this time, since the fixed tooth block is placed on the copper plate and can be slid, it is possible to prevent an increase in frictional force when the fixed tooth block moves due to rust of the fixed tooth block.

Further, the contact portion between the lower end of the fixed tooth block and the upper surface of the fixed tooth block support is greased up, so that the contact portion between the fixed tooth block and the fixed tooth block support is greased. The fixed tooth block can be moved up easily.

[0013]

Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 (a), 1 (b) and 1 (c) show an embodiment of a granulating apparatus according to the present invention. As shown in FIGS. 3 and 4, a horizontal granulating chamber 15 is shown. And 16 to casing 7
And a hammer 1 inside the upper granulation chamber 15.
7 is attached to the outer periphery of the drum 18 so as to be rotatable, and fixed teeth 12 are attached to the inner surfaces of the fixed tooth attachment plates 13a and 13b on the front side and the rear side thereof, so that the clearance with the hammer 17 is predetermined. Set fixed tooth blocks 22a and 2
2b, and a drum 18 having a hammer 17 mounted on the outer periphery thereof is also rotatably disposed in the lower granulation chamber 16 in the same manner. Fixed tooth blocks 22c and 22d are provided so as to reduce the clearance with the hammer 17, and each fixed tooth mounting plate 13 of the upper and lower front and rear fixed tooth blocks 22a and 22b is provided.
a and a lower side fixed tooth block 22 provided with a slit 14a having a slit 19 corresponding to the clearance between the hammer 17 and the fixed teeth 12 between the lower ends of the lower and upper fixed teeth blocks 13a and 13b.
In a configuration of a horizontal biaxial system, a perforated plate 14b having a hole 20 having a diameter corresponding to the clearance between the hammer 17 and the fixed teeth 12 is provided between the lower end portions of the fixed tooth mounting plates 13c and 13d of c and 22d. The front side of the upper granulation chamber 15 and the lower granulation chamber 16
An opening 31 corresponding to each of the fixed tooth blocks 22a and 22c on the front side is provided so that both the fixed tooth blocks 22a and 22c are exposed forward. At the positions corresponding to the fixed tooth blocks 22 on the rear side of the lower granulation chamber 16 and the rear side of the lower granulation chamber 16.
Is provided so that the fixed tooth blocks 22b and 22d are both exposed rearward.
a, 22b, 22c, 22d side plate 21
A support plate 32 for supporting the fixed tooth blocks 22a, 22b, 22c, 22d in the front-rear direction while supporting the fixed tooth blocks 22a, 21b, 21c, 21d is installed inside the casing 7, and the upper surface of each support plate 32 is provided. A copper plate 33 is attached to a portion in contact with each side plate so that the fixed tooth blocks 22a, 22b, 22c, 22d can slide in the front-rear direction on the upper surface of each copper plate 33.

Further, each fixed tooth block 22a, 22b, 2
2c, 22d left and right side plates 21a, 21b,
21c and 21d are fixedly attached to left and right end portions of each support plate 34 by protruding a predetermined amount from the opening 31 to the outside of the casing 7 and fixing the support plates 34 extending in the left-right direction at required positions in the vertical direction of each protruding end. Are projected to the left and right positions of the casing 7, while supporting projections 35 are provided at required positions at the front and rear ends of the casing 7 so as to face the left and right ends of the support plates 34 at a required interval. A clearance for adjusting the clearance between the fixed teeth 12 and the hammer 17 by moving each fixed tooth block in the front-rear direction by a bolt tightening operation between the pair of the support plate 34 and the support protrusion 35. The adjusting portions 36 are disposed on both left and right sides of each of the fixed tooth blocks 22a, 22b, 22c, 22d.

The clearance adjusting section 36 includes a support plate 3
A screw hole 37 and a fool hole 38 are vertically arranged at the right and left ends of the screw hole 4, and a push bolt 39 screwed into the screw hole 37.
Is made to abut against the opposing surface of the support projection 35, and the tip of the pull bolt 40 penetrated through the fool hole 38 is screwed into the screw hole 41 formed in the support projection 35. In each of the fixed tooth blocks 2 as an initial state in which a predetermined clearance is arranged between the fixed teeth 12 and the hammer 17,
2a, 22b, 22c, and 22d are fixed in the front-rear direction, and the push bolt 39 is loosened.
After a gap is formed between the tip of No. 9 and the support protrusion 35,
By tightening the pull bolt 40 again until the tip of the push bolt 39 abuts the support projection 35, the support plate 34 is drawn to the support projection 35, and the fixed tooth block is integrally formed with the support plate 34 in the casing 1. It can be moved to one side.

The copper plate 33 on the support plate 32 and the fixed tooth blocks 22a, 22
b, 22c, 22d side plates 21a, 21b,
Grease-up holes 42 are formed at required positions on both left and right sides of the casing 7 so that grease is supplied to the contact portions with the lower ends of 21c and 21d, and the copper plate 33 and the fixed teeth are passed through the grease-up holes 42. Blocks 22a, 22b, 22
The grease of the contact part with c and 22d can be made.

Further, each fixed tooth block 22a, 22b,
Left and right side plates 21a, 21 of 22c, 22d
A plurality of screw holes 43 are provided at required positions of b, 21c, and 21d, respectively. On the other hand, long holes 44 extending in the front-rear direction are formed on both right and left side surfaces of the casing 7 so as to correspond to the screw holes 43. 44 through the screw hole 4
By screwing the fixed tooth block 3 onto the fixed tooth block 3, it is possible to prevent the fixed tooth block from swaying in the left-right direction during operation.

Other configurations are the same as those shown in FIGS. 3 and 4 (a) and (b), and the same components are denoted by the same reference numerals.

When the empty can 1 is granulated, the fixed teeth 12 and the hammer 1 in each of the upper and lower granulating chambers are formed in the same manner as in the prior art.
7 is set to a predetermined value, for example, 60 mm in the upper granulation chamber 15 and 60 mm in the lower granulation chamber 16.
In this case, the size of each granulation chamber 15 and 16
When the roasted empty can 1 is loaded into the loading hopper 10 in a state where the drums 18 are driven to rotate in the inside, first, the empty can 1 is placed in the upper granulating chamber 15 by the upper grade 14a. The primary granulation is performed by crushing between the fixed teeth 12 and the hammer 17 until it can pass through a slit 19 having a width of, for example, 60 mm. The lower perforated plate 1 is fixed between the fixed teeth 12 and the hammer 17 having a smaller clearance.
4b, for example, is crushed and subjected to secondary granulation until it can pass through a hole 20 having a diameter of 40 mm, and only the pellets 5 passing through the hole 20 are discharged from the discharge port 9 and collected. Become so.

When the fixed teeth 12 and the hammer 17 are worn out due to granulation of the empty can 1 and the clearance is widened, first, the bolt 45 is loosened, and then the push bolt 39 of the clearance adjusting section 36 is loosened. And the push bolt 39
Required space between the tip of the support projection 35 and
An interval corresponding to the clearance adjustment amount is opened, and then the pull bolt 40 is tightened until the tip of the push bolt 39 abuts against the support projection 35 again.
The support member 34 is moved in a direction to draw the support member 34 with respect to the support member 5. As a result, the fixed tooth block can be moved in the direction of the hammer 17 integrally with the support member 34, and adjustment is performed so that the clearance between the fixed teeth 12 and the hammer 17 is reduced.

As described above, the movement of the fixed tooth blocks 22a, 22b, 22c, 22d in the direction of the hammer 17 during the clearance adjustment can be performed by the tightening operation of the pull bolt 40, and the clearance adjustment operation is performed in comparison with the conventional case. And the amount of movement of the fixed tooth blocks 22a, 22b, 22c, 22d can be set by the amount of pull-out of the push bolt.
Clearance adjustment can be ensured, and
Since the fixed tooth blocks 22a, 22b, 22c, and 22d are placed on the copper plate 33 on the support plate 32, rusting can be prevented, and grease is injected from the grease-up hole 42 and fixed. Tooth blocks 22a, 22b, 22
By grease-up the contact portion between the lower ends of c and 22d and the upper surface of the copper plate 33, the fixed tooth blocks 22a, 22b,
The movement of 22c and 22d can be made easier.

The present invention is not limited to the above embodiment, and the shape of the fixed teeth 12 may be not a hemispherical shape but a saw-tooth shape. 16, the clearance between the fixed teeth 12 and the hammer 17 and the slit 19 in the upper step 14a.
And the diameter of the hole 20 of the lower perforated plate 14b may be freely determined so as to obtain pellets 5 having a desired particle size. Blocks 22a, 22b, 22c, 22d
Tooth block 22a, 2 at the contact portion between
It may be another shape such as a groove provided on the bottom surface of 2b, 22c, 22d or on the upper surface of the copper plate 33. As the fixed tooth block support material, instead of the support plate 32, along the left and right inner side surfaces of the casing 7, A rectangular rod-shaped fixed tooth block supporting material may be provided, and further, a granulated material other than the empty can 1 may be crushed to be used for granulation. It goes without saying that various changes can be made without departing from the spirit of the present invention.

[0024]

As described above, according to the granulating apparatus of the present invention, the granulating chambers are provided at upper and lower positions in a box-shaped casing having a supply port at the upper end and a discharge port at the lower end. Forming and installing the hammer rotatably in each granulation chamber,
A fixed tooth block having a large number of fixed teeth protruding inward so as to provide a required clearance between the rotation locus of the hammer and the fixed tooth block is disposed on both front and rear sides, and fixed tooth blocks before and after the upper granulation chamber. Provided with a sawboard having a number of slits between the lower end of the granule, provided with a perforated plate having a number of holes smaller than the slits between the lower end of the fixed tooth block in front of and behind the lower granulation chamber, granulation supplied from the supply port The product is subjected to primary granulation by hitting with a fixed tooth and a hammer in the upper granulation chamber, then dropped and supplied to the lower granulation chamber through the upper grader, and again beaten with the fixed teeth and the hammer in the lower granulation chamber. In a granulating apparatus in which the secondary granulated particles having a predetermined particle size are passed through a lower porous plate and discharged from a discharge port,
Openings are provided on the front side and the rear side of the casing for drawing out the fixed tooth blocks before and after each of the granulating chambers in the upper and lower stages, and each fixed tooth block is moved in the front and rear direction with respect to the casing in each of the openings. Since a clearance adjusting portion for adjusting the clearance between the fixed teeth and the hammer is provided, and each of the fixed tooth blocks is slidably supported via a copper plate on a support member provided on the casing. In addition, it is possible to prevent an increase in frictional force when moving the fixed tooth block due to rusting of the fixed tooth block, and to support the clearance adjustment portion so as to protrude in the left and right direction of the casing outside the fixed tooth block. Plate, a support protrusion attached to the outside of the casing so as to face each of the support plates, a screw hole and a fool hole drilled in the support plate,
A push bolt which is screwed so as to penetrate the screw hole and whose tip abuts the support protrusion, and a pull which is screwed into the screw hole which penetrates the fool hole and penetrates the tip with the support protrusion. The fixed tooth block can be moved in the front-rear direction by operating the push bolt and pull bolt, making it easier to adjust the clearance between the fixed teeth and the hammer than before. Can be performed, and the amount of movement of the fixed tooth block at the time of clearance adjustment can be set by the amount of pull-out of the push bolt, so that the clearance adjustment can be ensured,
Furthermore, by providing a grease-up hole for grease-up a contact portion between the lower end of the fixed tooth block and the upper surface of the fixed tooth block support material, the fixed tooth block and the fixed tooth block support material The contact portion is greased up, so that the fixed tooth block can be moved more easily.

[Brief description of the drawings]

FIG. 1 shows an embodiment of a granulating apparatus according to the present invention, in which (a) is a partially cut side view, and (b) is a partially cut enlarged side view of a clearance adjusting portion of part A of (a). FIG. 3C is a plan view of FIG.

FIG. 2 is a schematic diagram showing a can purification system for pelletizing an empty can as a high-purity steel raw material or aluminum raw material.

FIG. 3 is a cut-away side view schematically illustrating an example of a conventional granulation apparatus.

FIG. 4 shows the granulating apparatus shown in FIG. 3, wherein FIG. 4A is a schematic side view, and FIG. 4B is an enlarged view of FIG.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 empty can (granulated material) 7 casing 8 supply port 9 discharge port 11 fixed-quantity supply device (supply device) 12 fixed teeth 13a, 13b, 13c, 13d fixed tooth mounting plate 14a sandboard 14b perforated plate 15 granulation chamber 16 Granule chamber 17 Hammer 18 Drum 21a, 21b, 21c, 21d Side plate 22a, 22b, 22c, 22d Fixed tooth block 31 Opening 32 Fixed tooth block support plate (fixed tooth block support material) 33 Copper plate 34 Support plate 35 Support projection 36 Clearance adjustment part 37 Screw hole 38 Fool hole 39 Push bolt 40 Pull bolt 41 Screw hole 42 Grease-up hole (grease-up part)

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI theme coat ゛ (reference) C22B 1/248 B09B 3/00 301Q F term (reference) 4D004 AA27 AC04 BA05 CA04 CB13 4D065 AA02 AA24 BB03 BB12 EA05 EB02 EC09 ED18 ED23 4D067 DD06 GA10 GA18 GB07 4G004 AA03 4K001 AA02 AA10 BA22 CA01 CA09 CA25

Claims (3)

[Claims] 1. A granulation chamber is formed at a vertical position in a box-shaped casing having a supply port at an upper end and a discharge port at a lower end, and a hammer is rotatably installed in each of the granulation chambers. And a fixed tooth block having a large number of fixed teeth protruding inside so as to provide a required clearance with the rotation locus of the hammer is disposed on both front and rear sides, and in front of and behind the upper granulation chamber. A saw blade having a number of slits was provided between the lower ends of the fixed tooth blocks, and a perforated plate having a number of holes smaller than the slits was provided between the lower ends of the fixed tooth blocks before and after the lower granulation chamber, and supplied from the supply port. After the granulated material is subjected to primary granulation by hitting with a fixed tooth and a hammer in the upper granulation chamber, the granulated material is dropped and supplied to the lower granulation chamber through the upper grader, and the fixed teeth and the hammer are again supplied to the lower granulation chamber. And hit by 2
In a granulating apparatus in which particles having a predetermined particle size after the next granulation are passed through a lower perforated plate and discharged from a discharge port, the granulating chambers in the upper and lower stages are provided on the front side and the rear side of the casing. A clearance for adjusting the clearance between the fixed teeth and the hammer by moving each fixed tooth block in the front-rear direction with respect to the casing in each opening for drawing out each fixed tooth block before and after A granulating apparatus having a configuration in which a portion is provided and each of the fixed tooth blocks is slidably supported via a copper plate on a support member provided in a casing. 2. A support plate having a clearance adjusting portion attached to the outside of the fixed tooth block so as to project in the left-right direction of the casing, a support projection attached to the outside of the casing so as to face each of the support plates, A screw hole and a fool hole drilled in the support plate, a push bolt screwed so as to penetrate the screw hole and a tip abutting on the support projection, and a tip part supported by penetrating the fool hole 2. The granulating apparatus according to claim 1, wherein said granulating apparatus comprises a pull bolt screwed into a screw hole formed in said projection. 3. The granulating apparatus according to claim 1, wherein a contact portion between a lower end of the fixed tooth block and an upper surface of the fixed tooth block support material is greased.