KR20210132959A - Closed type manufacturing apparatus of starfish fine powder - Google Patents

Abstract

The present invention relates to a closed-type starfish fine powder manufacturing apparatus and the objective of the present invention is to completely pulverize starfish to acquire a fine powder, prevent wastewater generated during pulverization from being discharged to the outside of a pulverizer, and prevent odors from being generated. To this end, the starfish fine powder manufacturing apparatus comprises: an inlet hopper for inputting starfish; a pulverization unit for pulverizing the starfish; and a transfer screw for transferring the pulverized starfish. The pulverization unit includes primary pulverization unit (14) primarily pulverizing the starfish by a pulverization blade and a secondary pulverization unit (26) finely pulverizing the dried pulverized starfish by a roller. The transfer screw includes: a first transfer screw (17) drying the primarily pulverized starfish while transferring the same; a second transfer screw (19) disposed on the lower part of the first transfer screw (17); a vertical transfer screw (21) disposed at one end part of the second transfer screw (17); and a third transfer screw (23) disposed on the upper part of the first transfer screw (17). The pulverization unit and the transfer screws are disposed on the upper part of a base (B) and are sealed by a housing (44).

Description

Closed type starfish fine powder manufacturing apparatus {CLOSED TYPE MANUFACTURING APPARATUS OF STARFISH FINE POWDER}

The present invention relates to an apparatus for manufacturing starfish into fine powder, and more particularly, it is possible to finely pulverize the starfish, and the wastewater generated during pulverization of the starfish is supplied back into the manufacturing apparatus and evaporated to reduce the generation of wastewater. It relates to a sealed type starfish fine powder manufacturing apparatus configured to prevent the occurrence of odor by configuring the fine powder manufacturing apparatus in an integrated, sealed type.

A starfish is an echinoderm belonging to the family Starfish, and the part corresponding to the arm protrudes from the center of the body in the form of a star as a whole.

More than 1,800 species of these starfish are distributed in the seas of the world, and it is known that they inhabit the North Pacific in particular.

The diameter of the body of the starfish is usually 20 ~ 30cm or 60cm, and it mainly eats shellfish.

Accordingly, a lot of damage by starfish occurs in shellfish farms, and in order to prevent this, starfish are periodically captured.

In the past, these captured starfish were incinerated or buried, but recently, the captured starfish are crushed and dried, and used as fertilizer, feed, supplementary food, raw materials for pharmaceuticals, and the like.

Various structures have been proposed as an apparatus for pulverizing and drying the starfish to produce a powder.

Korean Patent Registration No. 10-0996719 discloses, an input hopper having an inlet and an outlet into which a starfish is put, and an input screw having a lower surface inclined downward and an input screw disposed vertically on the upper side of the outlet; a first transfer unit having a first transfer pipe extending from the outlet, a first transfer screw for transferring the starfish to the inside of the first transfer pipe, and a first transfer motor for driving the first transfer screw; a guide tube extending downward from one end of the first transfer tube; a grinder coupled to one end of the guide tube and crushing the starfish; A second conveying pipe coupled to the crusher and extending in one direction to collect the crushed starfish, a second conveying screw for conveying the crushed starfish in one direction to the inside of the second conveying pipe, and the second conveying screw a second transfer unit having a second transfer motor for driving; A chamber connected to one end of the second transfer unit, a drying tube extending in one direction and rotatable in the chamber and transferring the pulverized starfish in one direction during rotation, and a heater disposed between the drying tube and the chamber; dryer; and a dust collection and odor removal device coupled to one end of the second transfer pipe and suctioning and removing odors and dust contained in the pulverized starfish.

In addition, Korean Patent Registration No. 10-1090021 discloses, an input hopper into which starfish are put; A first transfer unit for transferring the starfish; grinder to crush starfish; A first dryer for primary drying of the pulverized starfish; a second dryer for secondary drying of the starfish dried from the first dryer; a dust collector and odor removal device that sucks and removes odors and dust contained in pulverized starfish; and a second conveying conveyor connected to one end of the second dryer so that the pulverized starfish is discharged.

In addition, Korean Patent Laid-Open Publication No. 10-2015-0007787 discloses, an input hopper for discharging starfish input from the outside to the bottom; a transfer conveyor having one end disposed under the input hopper to move the starfish discharged through the lower portion of the input hopper in the other end direction; a pulverizing unit disposed at the other end of the conveying conveyor to pulverize the starfish fed by the conveying conveyor and discharge it in a paste state; a drying unit for drying the starfish paste discharged by the crushing unit into starfish powder; It is made to include a discharge unit for discharging the dried starfish powder to the outside, wherein the crushing unit is formed with an inlet through which the starfish is put in the upper or side portion, and a plurality of discharge holes having a size smaller than that of the inlet at the lower portion are spaced apart from each other. a housing formed by being; and a grinding screw that is rotatably mounted inside the housing and grinds the starfish introduced through the inlet and moves it to the discharge hole, and the starfish introduced into the housing by the rotation of the grinding screw is crushed It has a structure that is pressed and extruded through the discharge hole into the starfish paste having a plurality of melodic shapes.

However, the conventional starfish crushing and drying apparatus (hereinafter simply referred to as 'crushing apparatus') has a problem in that it is difficult to crush the starfish into a fine powder state because the starfish is crushed by one crushing unit.

In addition, the conventional pulverizing apparatus has a problem in that it is difficult to completely separate moisture from the pulverized starfish.

In addition, the conventional pulverizing apparatus has a problem in that the wastewater treatment generated during pulverization of starfish is insufficient and a lot of odor is generated.

Republic of Korea Patent Registration No. 10-0996719 (2010.11.25. Announcement) Republic of Korea Patent Registration No. 10-1090021 (Notice on Dec. 2011) Republic of Korea Patent Publication No. 10-2015-0007787 (published on January 21, 2015)

The present invention is to solve the problems of the prior art, and it is an object of the present invention to completely pulverize a starfish to obtain a fine powder.

Another object of the present invention is to allow the starfish to be completely separated into powder and moisture.

Another object of the present invention is to prevent water pollution by preventing wastewater generated during pulverization of starfish from being discharged to the outside of the pulverizing device.

Another object of the present invention is to prevent odor from being generated by configuring the pulverizing device in an integral and sealed type.

In order to achieve the above object, the present invention is a starfish powder manufacturing apparatus comprising an inlet hopper for putting in a starfish, a pulverizing unit for pulverizing the starfish, and a transfer screw for transferring the pulverized starfish, the pulverization Part, the primary crushing unit for primary crushing of the starfish by the crushing blade, and a secondary crushing unit for secondly finely crushing the dried starfish crushed product by a roller, wherein the transfer screw is primarily crushed A first transfer screw for drying the starfish while transferring it, a second transfer screw disposed under the first transfer screw, a vertical transfer screw disposed at one end of the second transfer screw, and the first transfer screw It is configured to include a third transfer screw disposed on the upper portion, and the crushing unit and the transfer screw are disposed on the upper portion of the base and sealed by the housing.

In addition, the primary crushing unit, a drive shaft, a crushing blade provided on the upper portion of the drive shaft to rotate, a rotary tube provided on the outer periphery of the crushing blade to rotate, and a predetermined distance spaced apart from the outside of the rotary tube It characterized in that it comprises a cylindrical filter and a wastewater pipe provided on one side of the cylindrical filter.

In addition, a plurality of discharge holes are provided in the lower portion of the rotary tube, a spiral protrusion is provided on the outer circumferential surface of the rotary tube, and discharge wings are provided on the upper part of the rotary tube, so that the shredded starfish is transferred to the upper part along the spiral projection, , characterized in that it is transferred to the first transfer screw through the crushed material passage by the discharge blade.

In addition, the rotary cylinder includes a first gear assembled to the drive shaft, a second gear meshing with the first gear, a third gear meshing with the second gear, and a fourth gear rotating on the same axis as the third gear. , the number of rotations is reduced by receiving a rotational force through the fifth gear meshing with the fourth gear, and rotating in the opposite direction to the drive shaft.

In addition, the secondary pulverization unit is configured to include a pair of upper pulverization rollers and a pair of lower pulverization rollers, and secondly finely pulverizes the pulverized material discharged from the third feed screw.

In addition, the first transfer screw, the second transfer screw, and the third transfer screw are seated in a U-shaped frame with an open upper portion, respectively, and on the upper portion of the first transfer screw, the second transfer screw and the third transfer screw, It is characterized in that the first condensate collection tube, the second condensate collection tube and the third condensate collection tube are provided, respectively.

In addition, each water vapor evaporator is characterized in that it is provided with a hot air circulation pipe.

In addition, cooling pipes are respectively connected to the first condensate collection tube, the second condensate collection tube, and the third condensate collection tube, and the condensed water is discharged to the outside through the water outlet.

In addition, a water vapor collection guide is provided on the upper portion of the vapor evaporation unit, and a filter is provided on the upper portion of the water vapor collection guide.

In addition, a wastewater reservoir for storing wastewater collected through a wastewater pipe provided under the primary crusher is further provided, and the wastewater of the wastewater reservoir is supplied to the inside of the crusher by a wastewater pump and sprayed through the wastewater nozzle characterized by being

According to the present invention, since the starfish is primarily crushed to a certain size, dried completely, and then secondarily finely pulverized, there is an effect that can be produced in a fine powder state without moisture.

In addition, there is an effect that the water is completely removed while the crushed material crushed to a certain size is conveyed through three conveying screws.

In addition, by circulating wastewater generated during crushing of the starfish inside the crushing device and evaporating it, there is an effect of preventing water pollution by preventing the wastewater from being discharged to the outside.

In addition, there is an effect of preventing the generation of dust by spraying wastewater generated during crushing into the crushing device.

In addition, since the crushing device is configured as an integral, completely sealed type, there is an effect of preventing the occurrence of odors.

1 is a front cross-sectional view schematically showing a closed-type starfish fine powder manufacturing apparatus according to the present invention.
Figure 2 is a left side view of the starfish fine powder manufacturing apparatus according to the present invention.
Figure 3 is a cross-sectional view of the primary crushing unit according to the present invention.
Figure 4 is a perspective view of the rotary tube according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIGS. 1 and 2, the sealed starfish powder manufacturing apparatus according to the present invention includes an inlet hopper for putting in a starfish, a crushing unit for crushing the starfish, and a transfer screw for transferring the crushed starfish. In the starfish powder manufacturing apparatus including It is made to include a secondary crushing unit 26 that is finely pulverized secondarily by a roller.

That is, in the present invention, after the starfish is first crushed to a certain size in the primary crushing unit 14, it is completely dried while passing through a transfer screw, and then crushed into a fine powder in the secondary crushing unit 26.

Thereby, it is possible to produce a fine powder of starfish without any moisture.

The transfer screw includes a first transfer screw 17 for drying while transferring the primarily crushed starfish, a second transfer screw 19 disposed under the first transfer screw 17, and the second transfer It is configured to include a vertical transfer screw 21 disposed at one end of the screw 19 , and a third transfer screw 23 disposed above the first transfer screw 17 .

By the above structure, the crushed starfish is completely dried while passing through the first transfer screw 17 → the second transfer screw 19 → the vertical transfer screw 21 → the third transfer screw 23, and the secondary crushing part (26) pulverized to a fine powder.

The first transfer screw 17 is driven by a first transfer screw driving motor 18 , the second transfer screw 19 is driven by a second transfer screw driving motor 20 , and a third transfer screw (23) is driven by a third transfer screw driving motor (24), respectively.

In addition, the crushing unit and the transfer screws are disposed on the upper portion of the base (B) and sealed by the housing (44).

By the above structure, it is possible to prevent the occurrence of odor when crushing a starfish having a high moisture content.

The primary crushing unit 14 is for primarily crushing the starfish that is introduced through the crushing inlet 13 through the input screw 11, and as shown in FIGS. 3 and 4, the first crushing The drive shaft 14a driven by the sub-drive motor 15, the crushing blade 14b provided on the upper part of the drive shaft 14a to rotate, and the crushing blade 14b provided on the outer periphery to rotate It is configured to include a rotary cylinder 14c, a cylindrical filter 14g provided to be spaced apart from the outside of the rotary cylinder 14c by a predetermined distance, and a wastewater pipe 14h provided at one side of the cylindrical filter 14g .

The input screw 11 is provided at an angle and is driven by the input screw driving motor 12 , and the starfish input to the inlet hopper 10 is put into the primary crusher 14 through the crushing inlet 13 . .

Here, a plurality of discharge holes 14e are provided at a lower portion of the rotary tube 14c, a spiral protrusion 14d is provided on an outer circumferential surface of the rotary tube 14c, and discharge wings are provided on the upper portion of the rotary tube 14c. (14f) is provided.

By the above structure, the starfish primarily crushed by the crushing blade 14b is transported upward along the spiral protrusion 14d of the rotary cylinder 14c, and the crushed material passage by the discharge blade 14f. It is transferred to the first transfer screw 17 through (16).

During this process, the water from the crushed starfish is filtered by friction with the filter 14g, and the generated wastewater is temporarily stored in the wastewater reservoir 39 through the wastewater pipe 14h.

In addition, the rotary cylinder 14c includes a first gear G1 assembled to the drive shaft 14a, a second gear G2 meshing with the first gear G1, and the second gear G2 meshing with the first gear G1. The physics receives the rotational force through the third gear G3, the fourth gear G4 rotating on the same axis as the third gear G3, and the fifth gear G5 meshing with the fourth gear G4. .

By the arrangement of the gear train, the rotary cylinder 14c rotates in the opposite direction to the drive shaft 14a.

In addition, the rotational cylinder 14c is rotated at a low speed by significantly reducing the number of rotations compared to the driving shaft 14a rotating at a high speed.

And the present invention is provided with a secondary pulverization unit 26 for finely pulverizing the dried crushed material again while passing through the transfer screw.

As shown in FIGS. 1 and 2, the secondary pulverizing unit 26 includes a pair of upper pulverizing rollers 26a and a pair of lower pulverizing rollers 26b, the housing 44 It is connected to the third transfer screw 23 on the outer side of the.

Accordingly, the crushed material completely dried while passing through the first conveying screw 17, the second conveying screw 19, and the third conveying screw 23 is supplied to the secondary crushing unit 26 through the outlet 25 to provide fine pulverized into powder.

In addition, the first transfer screw 17 , the second transfer screw 19 , and the third transfer screw 23 are seated on the U-shaped frame F with an open upper portion, respectively.

That is, the upper portions of the transfer screws are formed in an open structure to form a vapor evaporator 32, respectively, and each vapor evaporator 32 is provided with a hot air circulation pipe 33 to dry the crushed material.

To this end, the present invention includes an air circulation motor 36 and an air distribution valve 37 for supplying hot air.

In addition, a semi-circular arc-shaped vapor collecting guide 42 is provided on the upper portion of the vapor evaporator 32 , and pipe connection portions 42a are formed on both sides of the vapor collecting guide 42 .

In addition, a filter 43 is provided on the upper portion of the water vapor collection guide 42 .

Condensed water generated during evaporation can be effectively collected by the above-described water vapor collecting guide 42 .

In addition, on the upper portions of the first transfer screw 17 , the second transfer screw 19 and the third transfer screw 23 , the first condensate collection tube 29 , the second condensate collection tube 30 and the third condensate water A collection container 31 is provided, respectively.

The cooling pipe 34 is respectively connected to the first condensate collection tube 29, the second condensate collection tube 30, and the third condensate collection tube 31, and the condensed water is discharged through the condensate outlet 35 to the outside. is emitted as

In addition, the present invention further includes a wastewater storage tank 39 for storing wastewater collected through a wastewater pipe 14h provided under the primary crusher 14 .

The wastewater storage tank 39 is for temporarily storing wastewater generated when crushing starfish having a moisture content of about 50 to 60%.

The wastewater stored in this way is supplied to the inside of the crusher by the wastewater pump 40 and is sprayed through the wastewater injection port 41 .

With the above structure, it is possible to prevent wastewater generated during crushing of the starfish from being discharged to the outside of the housing 44 to contaminate the water quality.

Hereinafter, a process for producing fine powder using the apparatus for manufacturing fine starfish powder according to the present invention will be described.

When the starfish is put into the inlet hopper 10 , the starfish is put into the upper part of the primary crushing unit 14 through the inlet 13 by rotation of the inclined input screw 11 .

The starfish introduced into the primary crushing unit 14 is crushed to a predetermined size by the rotation of the crushing blade 14b.

The crushed starfish thus crushed is transferred to the upper portion of the primary crushing unit 14 by the rotation of the rotary cylinder 14c through the discharge hole 14e at the bottom.

That is, the crushed material is transported to the upper portion of the primary crushing unit 14 riding on the spiral protrusion 14d formed on the outer periphery of the rotary tube 14c.

At this time, the rotary tube (14c). It rotates in the opposite direction to the drive shaft 14a which rotates the crushing blade 14b.

In addition, the rotary cylinder (14c) is rotated at a low speed by significantly reducing the number of rotations by the plurality of gear trains (G1, G2, G3, G4, G5) provided in the lower portion of the primary crushing unit 14 .

The wastewater generated when the starfish is crushed is temporarily stored in the wastewater reservoir 39 through the wastewater pipe 14h, and then is injected into the spraying device through the wastewater jetting hole 41.

The crushed material transferred to the upper portion of the primary crushing unit 14 is passed through the crushed material passage 16 by the rotation of the discharge blade 14f provided on the upper portion of the rotary tube 14c to the first conveying screw 17. are transported

Then, the crushed starfish is dried by the heat generated during crushing and the heat of the hot air circulation pipe 33 while being transported to the left on the first conveying screw 17 .

The crushed material conveyed to the left by the first conveying screw 17 is dried while being conveyed to the right again by the second conveying screw 19 provided at the lower portion thereof.

The crushed material transferred to the right end of the second transfer screw 19 is transferred to the upper part of the housing by the vertical transfer screw 21 installed vertically, and the third transfer provided on the upper part of the first transfer screw 17 . It is transferred to the screw 23 and dried again.

The crushed material completely dried while being transported to the left on the third conveying screw 23 is supplied to the secondary crushing unit 26 through the outlet 25 .

In addition, moisture generated in the drying process is condensed in the vapor evaporation space 32 provided above the first transfer screw 17 , the second transfer screw 19 , and the third transfer screw 23 , and thus generated The condensed water is discharged to the outside through the condensate outlet (35).

Since the condensed water is generated by condensation of water vapor, not wastewater generated during crushing of the starfish, it may be discharged to the outside.

The crushed material supplied to the secondary pulverizing unit 26 is pulverized into fine powder while passing through the upper pulverizing roller 26a and the lower pulverizing roller 26b, and then discharged through the fine powder outlet 28.

The pulverized starfish powder is used as a fertilizer, feed, supplementary food, raw material for pharmaceuticals, and the like.

According to the present invention, the starfish is first crushed to a certain size by the crushing blade 14b in the primary crushing unit 14, and the crushed material is completely dried while conveying through a plurality of conveying screws, and then the secondary crushing unit ( 26) and grind again.

By the above method, the water can be completely removed while the starfish crushed to a certain size move smoothly along the transfer screw, and it can be manufactured into a fine powder without any water.

In addition, since the wastewater generated when the starfish is crushed is circulated back into the device and evaporated, it is possible to prevent the generation of wastewater and prevent water pollution.

In addition, since the frames of the first to third transfer screws are U-shaped and have an open top structure, and a vapor evaporation space is formed thereon, the remaining moisture can be completely evaporated.

In addition, since the crushing device is composed of an integrated, sealed type, it is possible to prevent the odor generated when crushing the starfish.

In the above, preferred embodiments of the present invention have been exemplarily described, and the scope of the present invention is not limited to the specific embodiments described above. Those of ordinary skill in the art to which the present invention pertains will understand that various modifications and changes are possible without departing from the scope of the technical spirit of the present invention.

10: inlet hopper (Hopper) 11: dosing screw (Screw)
12: input screw drive motor 13: grinding inlet
14: primary crushing part 14a: drive shaft (Shaft)
14b: crushing blade (Blade) 14c: rotary drum
14d: spiral projection 14e: exhaust hole
14f: Discharge blade 14g: Cylindrical filter (Filter)
14h: wastewater pipe (Pipe) 15: first crushing unit driving motor
16: crushed material passage 17: first transfer screw
17a: first transfer screw shaft 18: first transfer screw drive motor
19: second feed screw 20: second feed screw drive motor
21: vertical feed screw 22: vertical feed screw drive motor
23: third transfer screw 24: third transfer screw drive motor
25: outlet 26: secondary crushing unit
26a: upper fine grinding roller 26b: lower fine grinding roller
28: fine powder outlet 29: first condensate collection container
30: second condensate collection container 31: third condensate collection container
32: vapor evaporation space 33: hot air circulation pipe
34: pipe (Pipe) 35: condensate outlet
36: air circulation motor 37: air distribution valve
38: air inlet 39: waste water storage tank
40: waste water pump (Pump) 41: waste water nozzle
42: vapor collection guide 42a: pipe connection
43: Filter 44: Housing
B: Base F: Frame
G1: 1st gear G2: 2nd gear
G3: 3rd gear G4: 4th gear
G5: 5th gear

Claims (10)

In the starfish powder manufacturing apparatus comprising an inlet hopper for putting in a starfish, a crushing unit for crushing the starfish, and a transfer screw for transferring the crushed starfish,
The crushing unit,
The primary crushing part 14 for crushing the starfish primarily by the crushing blade, and
It is made including a secondary crushing unit 26 for finely pulverizing the dried starfish shreds secondarily by a roller,
The transfer screw is
A first transfer screw 17 for drying while transferring the primarily crushed starfish;
a second transfer screw (19) disposed under the first transfer screw (17);
a vertical transfer screw 21 disposed at one end of the second transfer screw 17;
and a third transfer screw 23 disposed on the first transfer screw 17,
The pulverization unit and the transfer screws are disposed on the upper portion of the base (B) and sealed by the housing (44), characterized in that the airtight starfish fine powder manufacturing apparatus. The method of claim 1,
The primary crushing unit 14,
a drive shaft 14a;
A crushing blade (14b) provided on the upper portion of the drive shaft (14a) and rotating;
A rotary cylinder (14c) which is provided on the outer periphery of the crushing blade (14b) and rotates;
A cylindrical filter (14g) provided to be spaced apart from the outside of the rotary tube (14c) by a predetermined distance;
A closed type starfish fine powder manufacturing apparatus, characterized in that it comprises a wastewater pipe (14h) provided on one side of the cylindrical filter (14g). 3. The method of claim 2,
A plurality of discharge holes (14e) are provided in the lower portion of the rotary tube (14c),
A spiral projection (14d) is provided on the outer peripheral surface of the rotary tube (14c),
A discharge blade (14f) is provided on the upper portion of the rotary tube (14c),
Sealed starfish fine powder, characterized in that the crushed starfish are transferred upward along the spiral protrusion 14d, and are transferred to the first conveying screw 17 through the crushed material passage 16 by the discharge wings 14f. manufacturing equipment. 4. The method of claim 3,
The rotary tube (14c) is,
A first gear G1 assembled to the drive shaft 14a, a second gear G2 meshing with the first gear G1, a third gear G3 meshing with the second gear G2, the The rotational speed is reduced by receiving the rotational force through the fourth gear G4 rotating on the same axis as the third gear G3, and the fifth gear G5 meshing with the fourth gear G4,
A closed type starfish fine powder manufacturing apparatus, characterized in that it rotates in the opposite direction to the drive shaft (14a). The method of claim 1,
The secondary crushing unit 26,
It consists of a pair of upper fine grinding rollers 26a and a pair of lower fine grinding rollers 26b,
A closed type starfish fine powder manufacturing apparatus, characterized in that the secondly finely pulverizing the crushed material discharged from the third transfer screw (23). The method of claim 1,
The first transfer screw 17, the second transfer screw 19, and the third transfer screw 23 are seated on a U-shaped frame F with an open upper portion, respectively,
A first condensate collecting trough 29, a second condensate collecting trough 30 and a third condensate are collected on the first transfer screw 17, the second transfer screw 19 and the third transfer screw 23. A closed type starfish fine powder manufacturing apparatus, characterized in that each of the barrels (31) are provided. 7. The method of claim 6,
Each of the water vapor evaporator (32) is a closed type starfish fine powder manufacturing apparatus, characterized in that provided with a hot air circulation pipe (33). 7. The method of claim 6,
The cooling pipe 34 is respectively connected to the first condensate collection tube 29, the second condensate collection tube 30, and the third condensate collection tube 31, and the condensed water is discharged through the condensate outlet 35 to the outside. Sealed starfish fine powder manufacturing apparatus, characterized in that it is discharged to. 7. The method of claim 6,
A water vapor collection guide 42 is provided on the upper portion of the water vapor evaporation unit 32,
A closed type starfish fine powder manufacturing apparatus, characterized in that a filter (43) is provided on the upper portion of the water vapor collection guide (42). The method of claim 1,
A wastewater storage tank 39 for storing wastewater collected through a wastewater pipe 14h provided under the primary crusher 14 is further provided,
The wastewater of the wastewater storage tank (39) is supplied to the inside of the pulverizer by the wastewater pump (40) and is sprayed through the wastewater injection port (41).

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