KR101837415B1 - Cleansing device using dry ice block - Google Patents

Abstract

The present invention relates to a dry ice block cleaning apparatus. According to the present invention, a pellet of a desired size can be produced by controlling a pressing force of a dry ice block, and a blade for cutting a dry ice block is divided into the inside and outside, It is possible to reduce the load applied and produce pellets of uniform size.

Description

[0001] The present invention relates to a dry ice block cleaning device,

The present invention relates to a cleaning device using a dry ice block, and more particularly, to a technique for effectively crushing a dry ice block and continuously spraying a uniform amount of dry ice pellets to improve cleaning efficiency.

Dry ice cleaning system is a device that removes foreign matter by injecting hard dry ice particles harmless to industrial facilities and environment at high speed. Dry ice particles sublimate into harmless gas as soon as they hit the surface, removing only contaminants without leaving any damage on the cleaning surface, leaving no secondary contaminants or moisture, so ceramic, synthetic resin, rare metals, fiberglass, rubber, plastic , Steel, electronic parts, die casting mold, reactor interior, tire mold and so on.

However, existing equipments have focused only on improvement of spraying technology of pulverized dry ice, and it has been difficult to produce homogeneous particles according to their applications by the most basic grinding method.

On the other hand, Korean Patent Laid-Open No. 10-2015-0079019 ('Dry Ice Cleaning Device', issued May 20, 2015) relates to a cleaning device using dry ice.

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made to solve the above-mentioned problems occurring in the prior art, and it is an object of the present invention to provide a technique for efficiently pulverizing a dry ice block, have.

According to an aspect of the present invention, there is provided a dry ice block cleaning apparatus including: a feeding unit for supplying a dry ice block; A crushing unit for crushing dry ice blocks supplied through the feeding unit to produce pellets; And a mixing part for supplying a predetermined amount of pellets by supplying air to the crushed pellets in the crushing part, wherein the crushing part comprises an inner blade facing the inner side of the dry ice supplied through the feeding part, A crushing plate which is provided with an outer blade facing the outer side of the ice and rotates by receiving power from the crushing motor; And a hopper for temporarily storing the pellets pulverized by the respective blades of the crushing plate.

Here, the hopper is provided with an air supply port, so that air can be supplied through the air supply port to prevent the pellets from sticking to each other.

In addition, the hopper is provided with a vibrator, so that the vibration of the vibrator can prevent the pellet from sticking to the inner wall of the hopper.

In addition, the mixing unit may include an inlet hole through which the pellets supplied from the hopper are inserted into an upper portion of the mixer, an upper inlet pad seating groove is formed below the inlet hole, and discharge air is supplied to another point of the upper portion A top plate on which a main air supply port is formed and an upper outlet pad receiving groove is formed below the main air supply port; An upper inlet pad which is seated in the upper inlet pad seating groove of the top plate and in which a pellet introduction hole is formed; An upper outlet pad which is seated in the upper outlet pad seating groove of the top plate and in which an air inlet hole for introducing air is formed; A lower outlet pad seating groove is formed in an upper portion of a position corresponding to the upper inlet pad seating groove, a lower outlet pad seating groove is formed in an upper portion corresponding to the upper outlet pad seating groove, A base plate communicating from the seating groove to another point and having a discharge hole through which the pellet moves; A lower inlet pad seated in the lower inlet pad seating groove of the base plate; A lower outlet pad mounted on a lower outlet pad seating groove of the base plate and having pellet discharge grooves through which pellets are discharged; And a rotor plate rotatable between the top plate and the base plate, wherein the rotor plate has a plurality of pellet transfer grooves formed at a position corresponding to a radius of the pellet insertion hole of the upper inlet pad and an air introduction hole of the upper outlet pad A pellet feeding groove of the upper plate and a pellet feeding hole of the upper inlet pad are filled in the pellet feed groove of the rotor plate, and then the pellet feed groove of the pellet is filled with the pellet feed groove, When the pellet is positioned in the air inlet hole of the outlet pad, air is supplied through the main air inlet of the top plate, and the air pushes the pellet filled in the pellet transfer groove of the rotor plate through the air inlet hole of the upper outlet pad The pellet which has been withdrawn from the pellet transfer groove is pushed into the pellet discharge groove Through the outlet hole of the base plate it can be injected to the outside.

The apparatus may further include an outlet pipe communicating the discharge hole of the base plate and the cleaning gun, wherein at least one auxiliary air supply port is provided at an intermediate point.

The feeding unit may include a body having a seating space in which the dry ice block is seated; A cover covering and protecting the seating space, the cover covering the seating space at a predetermined distance from the upper portion of the body so as to have a moving groove; A pressure plate for pressing the dry ice block; And a guide for indicating a remaining amount of the dry ice block while being connected to the pressure plate through a moving groove between the upper part of the body and the cover.

Also, by controlling the pressure of the pressing plate against the dry ice block, the size of the pellet to be crushed in the crushing unit can be adjusted.

The present invention has the following effects.

First, by controlling the pressing force of the pressure plate, it is possible to produce pellets of a size according to the washing purpose. At this time, since the crush plate is divided into the inner blade located at the center and the outer blade located at the outer periphery, the load applied to one blade is reduced and the short path can be cut at once, so that the pellets of uniform size can be produced.

Also, since the pressurizing link can freely move horizontally through the moving groove between the upper part of the lid and the upper part of the body, the remaining amount of the dry ice block can be immediately confirmed through the scale indicated by the instructions.

In addition, the produced pellets can be continuously discharged by a predetermined amount of pellet unit through the mixing unit, not by randomly injecting the pellets, so that the cleaning efficiency can be increased by spraying a predetermined amount of dry ice pellets.

In addition, it is possible to supply auxiliary air or carbon dioxide through the auxiliary air supply port provided in the outlet pipe, thereby preventing clogging of exhaust holes through the generation of negative pressure, and generating high-pressure carbon dioxide to generate dry ice snow.

1 is a perspective view for explaining a dry ice block cleaning apparatus according to an embodiment of the present invention;
FIG. 2 is a front view of the dry ice block cleaning apparatus shown in FIG. 1. FIG.
3 is a view for explaining blades of the crushing section in the dry ice block cleaning apparatus shown in Fig. 1; Fig.
Fig. 4 is a view of the crushing unit viewed from the other direction in the dry ice block cleaning apparatus shown in Fig. 1; Fig.
FIG. 5 is a top view of the mixing unit in the dry ice block cleaning apparatus shown in FIG. 1; FIG.
FIG. 6 is a front view of the mixing unit in the dry ice block cleaning apparatus shown in FIG. 1; FIG.
FIG. 7 is a schematic exploded perspective view for explaining the structure of the mixing unit in the dry ice block cleaning apparatus shown in FIG. 1; FIG.
8 is a conceptual view for explaining the structure of the mixing unit in the dry ice block cleaning apparatus shown in FIG.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. However, some configurations which are not related to the gist of the present invention may be omitted or compressed, but the configurations omitted are not necessarily those not necessary in the present invention, and they may be combined by a person having ordinary skill in the art to which the present invention belongs. .

FIG. 1 is a perspective view for explaining a dry ice block cleaning apparatus according to an embodiment of the present invention, and FIG. 2 is a front view of the dry ice block cleaning apparatus shown in FIG.

1 and 2, a dry ice block cleaning apparatus according to an embodiment of the present invention includes a main body 10, a feeding unit 20, a crushing unit 30, A mixing unit 40, a cleaning gun 70, and an operation unit 80. [

The body 10 supports other configurations of the apparatus, and a moving wheel (not shown) may be installed on the floor to facilitate the movement of the apparatus.

The feeding part 20 is provided to supply the dry ice block to the crushing part 30 side. In this embodiment, when the cleaning device is viewed from the front, the feeding part 20 is positioned on the upper right side.

The crushing unit 30 is provided for crushing the dry ice block supplied through the feeding unit 20 to produce pellets. In this embodiment, when the washing apparatus is viewed from the front, the upper left part, that is, the feeding part 20, And the crushing unit 30 is positioned in contact with the crushing unit 30.

The mixing unit 40 supplies air to the pulverized pellets in the pulverizing unit 30 to discharge a predetermined amount of the pellets. In the present embodiment, when the cleaning device is viewed from the front, the mixing unit 40 is located below the grinding unit 30 and the feeding unit 20.

The cleaning gun 70 is provided for spraying the pellets discharged from the mixing unit 40 onto the object to be cleaned.

The operation unit 80 is provided on the front surface of the washing apparatus and receives a user's command or controls the pressing force of the pressing plate 26 of the feeding unit 20 in conjunction with a separate control unit It is possible to control the rotation of the crush plate 31 of the crankcase 31 or to control the valve for supplying the air or the auxiliary gas.

Hereinafter, each of the components of the cleaning apparatus described above will be described in more detail.

First, the feeding section 20 includes a body 21, a lid 23, a pressing block 25, a pressing plate 26, a pressurizing link 27, a guide 28 and a ruler 29.

The body 21 has a seat space 22 in which a front side and one side (left side in the drawing) are opened and a dry ice block is seated on the inside.

The open front face of the body 21 can be opened and closed by the lid 23. That is, the lower part of the lid 23 is hinged to the lower part of the body 21, so that the body 21 can be opened and closed while being rotated up and down. At this time, the lid 23 can be raised to close the front surface of the body 21 and be fixed to the body 21 using the locking pieces 23a. At this time, between the upper part of the lid 23 and the upper part of the body 21 They are spaced apart at regular intervals. The spaced-apart gap between the upper part of the lid 23 and the upper part of the body 21 is referred to as a moving groove 24 for convenience.

A pressure block 25 is horizontally moved by a separate cylinder (not shown) at the upper part of the body 21 and a scale 29 is provided at the rear of the pressure block 25.

The inner seat space 22 of the body 21 is provided with a pressure plate 26 for pressing the dry ice block. The pressure plate 26 is connected to the pressure block 25 through a pressurizing link 27 passing through the moving groove 24.

In addition, a guide 28 is provided on the pressing block 25. Therefore, when the pressing block 25 moves, the pressure plate 26 and the pointer 28 can move horizontally together. The pressing link 27 can freely move along the moving groove 24 even when the cover 23 is covered for safety in crushing the dry ice block so that the pressing plate 26, The pressing block 25, and the guide 28 all move horizontally together. Therefore, even if the state of the dry ice block can not be checked by the lid 23, the remaining amount of the dry ice block can be easily confirmed through the scale 29 indicated by the guide 28. [

In the drawing, the pressure plate 26 pushes the dry ice block from the right side to the left side. The pressurized dry ice block is brought into close contact with the crushing plate 31 of the crushing unit 30 facing the left side of the body 21 of the feeding unit 20.

FIG. 3 is a view for explaining blades of the crushing unit in the dry ice block cleaning apparatus shown in FIG. 1, and FIG. 4 is a view showing the crushing unit in another direction in the dry ice block cleaning apparatus shown in FIG. 3 and 4, the crushing section 30 includes a crushing plate 31, a crushing motor 35, a crushing power transmitting section 36 and a hopper 37. [

The crushing plate 31 is in close contact with one side (left side in FIG. 2) of the body 21 of the feeding part 20 and can be rotated by receiving the power of the crushing motor 35 through the crushing power transmitting part 36 . The crushing plate 31 is provided with a plurality of blades 32 and 33 and a slit 34.

Specifically, an inner blade 32 is provided near the center of the crush plate 31, and an outer blade 33 is provided at the outer periphery thereof. Each of the blades 32 and 33 is detachably mounted on the crush plate 31 and is replaceable.

The blades 32 and 33 are all provided so as to be bladed in a direction radially extending from the center of the crush plate 31, although there is a difference in whether the crush plate 31 is located close to the center of the crush plate 31 or the crush plate 31 . Further, slits 34 passing through the front and rear sides of the crush plate 31 are formed at the positions where the blades 32 and 33 are positioned.

A hopper 37 for temporarily storing cut particles of a dry ice block, that is, pellets, is provided on the opposite side of the crushing plate 31 facing the body 21 of the feeding unit 20. [ The hopper 37 is made to be narrowed from top to bottom. An air supply port 38 is provided at one point, and a vibrator 39 for generating vibration is installed at another point.

Therefore, when the crushing plate 31 rotates while the dry ice block is in close contact with the crushing plate 31, the blades 32 and 33 cut the dry ice block, and the cut pellet passes through the slit 34, (37) located on the opposite side of the hopper (31).

At this time, when the pellets are accumulated in the hopper 37, there is a possibility that the respective pellets stick together. To this end, the hopper 37 is provided with an air supply port 38, and air can be introduced through the air supply port 38 to prevent the pellets from sticking together.

Further, the pellet may adhere to the inner wall of the hopper 37 and may interfere with discharge. Therefore, by vibrating the hopper 37 through the vibrator 39, the pellet can smoothly escape downward without sticking to the inner wall of the hopper 37.

The pellets temporarily stored in the hopper 37 are supplied to the mixing unit 40 directly or through an inlet pipe (not shown).

FIG. 5 is a top view of the mixing unit in the dry ice block cleaning apparatus shown in FIG. 1, FIG. 6 is a front view of the mixing unit in the dry ice block cleaning apparatus shown in FIG. 1, FIG. 8 is a conceptual view for explaining the structure of a mixing unit in the dry ice block cleaning apparatus shown in FIG. 1. FIG. 8 is a schematic exploded perspective view for explaining the structure of the mixing unit in the dry ice block cleaning apparatus.

The mixing unit 40 supplies air to the pulverized pellets in the pulverizing unit 30 to discharge a predetermined amount of the pellets. The mixing unit 40 includes a top plate 41, an upper inlet pad 46, an upper outlet pad 48, a base plate 55, a lower inlet pad 52, a lower outlet pad 53, 50, an outlet pipe 59, a mixing motor 62, and a mixing power transmission portion 63.

The top plate 41 is provided at one point with a charging hole 42 into which pellets supplied from the hopper 37 are charged and an upper inlet pad seating groove 43 is formed below the charging hole 42. A main air supply port 44 through which air for discharge is supplied is formed at another upper portion of the top plate 41, and an upper outlet pad seating groove 45 is formed below the main air supply port 44.

The upper inlet pad 46 is seated in the upper inlet pad seating groove 43 of the top plate 41 and a pellet injection hole 47 is formed. The upper and lower portions of the top plate 41 are penetrated by the charging hole 42 and the pellet charging hole 47 in a state where the upper inlet pad 46 is seated in the upper inlet pad seating groove 43.

The upper outlet pad 48 is seated in the upper outlet pad seating groove 45 of the top plate 41 and has an air inlet hole 49 into which air is introduced. The upper and lower portions of the top plate 41 are penetrated by the main air supply port 44 and the air input hole 49 in a state where the upper outlet pad 48 is seated in the upper outlet pad seating groove 45.

Below the top plate 41 is disposed a rotor plate 50 that receives the power of the mixing motor 62 through the mixing power transmission unit 63 and rotates. ).

First, the base plate 55 is formed with a lower inlet pad seating groove 56 at an upper portion corresponding to the upper inlet pad seating groove 43 and at an upper portion corresponding to the upper outlet pad seating groove 45 And a lower outlet pad seating groove 57 is formed. Further, a discharge hole 58 through which the pellet is communicated from the bottom surface of the lower outlet pad seating groove 57 to the other point is formed.

The lower inlet pad 52 is seated in the lower inlet pad seating groove 56 of the base plate 55.

The lower outlet pad 53 is seated in the lower outlet pad seating groove 57 of the base plate 55 and has pellet discharge grooves 54 through which the pellets are discharged. The pellet discharge groove 54 is connected to the outside of the base plate 55 through the discharge hole 58 in a state where the lower outlet pad 53 is seated in the lower outlet pad seating groove 57.

An outlet pipe 59 is connected to the discharge hole 58 of the base plate 55 and pellets discharged from the discharge hole 58 by the outlet pipe 59 may be supplied to the cleaning gun 70 and sprayed . At this time, the outlet pipe 59 is provided with a first auxiliary air supply port 60 and a second auxiliary air supply port 61, respectively, which will be described below.

The rotor plate 50 is rotated between the top plate 41 and the base plate 55 so that the pellet injection hole 47 of the upper inlet pad 46 and the air inlet hole 49 of the upper outlet pad 48 A plurality of pellet transfer grooves 51 are formed at positions facing each other.

Hereinafter, the operation of the dry ice block cleaning apparatus according to the embodiment of the present invention will be described.

The lid 23 of the feeding part 20 is opened and the dry ice block is placed in the seating space 22 between the left side of the body 21 and the pressing plate 26. [ Thereafter, when the lid 23 is closed and the command is inputted through the operating unit 80, the pressurizing block 25 moves to press the dry ice block toward the crushing plate 31, The crushing plate 31 rotates and the blades 32 and 33 cut the dry ice block finely to produce pellets.

At this time, the size of the pellet can be adjusted by the pressing force of the pressure plate 26. That is, the size of the pellets may need to be adjusted depending on the cleaning purpose. If the pressure plate 26 pushes the dry ice block at a large pressure, relatively thick pellets are produced. If the pressure plate 26 is pushed at a small pressure, relatively thin pellets can be produced . The pressing force of the pressing plate 26 can be adjusted by controlling a cylinder (not shown) associated with the pressing block 25. [

Also, the size of the dry ice block is reduced as the milling is performed. The pressure plate 26 pushing the dry ice block is connected to the pressurizing link 27 passing through the moving groove 24 between the lid 23 and the upper part of the body 21, It can be visually confirmed at which position of the ruler 29 the pointer 28 is pointing since it is connected to the pointer 25 and the pointer 28 and moves together.

On the other hand, the crush plate 31 is provided with an inner blade 32 near the center thereof and an outer blade 33 provided outside the crush plate 31. Therefore, the inner portion of the dry ice block is cut by the inner blade 32, and the outer portion is cut by the outer blade 33.

If a single blade is elongated from the center of the crushing plate 31 to the outer periphery, a large load is applied to cut the dry ice block, and it is possible to produce a pellet having a constant thickness high.

Therefore, when the inside and outside of the dry ice block are cut by using the inner blade 32 and the outer blade 33 in a state of being separated from each other, the load imposed on one of the blades 32 and 33 can be greatly reduced, By cutting the short portions of the blades 32 and 33 at once, it is possible to produce pellets of uniform size.

The pellets temporarily stored in the hopper 37 are prevented from sticking to each other by the air supplied from the air supply port 38 provided at one side of the hopper 37 and the vibration of the vibrator 39 causes the hopper 37 to continuously So that the pellets can smoothly escape downward without sticking to the inner wall of the hopper 37.

The pellets discharged from the hopper 37 are supplied to the mixing section 40 through an inlet pipe (not shown). That is, through the charging hole 42 of the top plate 41 and then to the discharging hole 58 of the base plate 55. The conceptual view is shown in FIG. In this embodiment, the inlet hole 42 of the top plate 41 and the main air inlet 44 are designed to be spaced apart from each other by 90 degrees with respect to the center of the top plate 41. For convenience of explanation, In the conceptual diagram, it is assumed that the injection hole 42 and the main air supply port 44 are opposed to each other, that is, 180 degrees apart from each other.

The pellets introduced through the pouring holes 42 of the top plate 41 and the pellet injecting holes 47 of the upper inlet pad 46 are pelletized by the pellet feeding grooves 51 of the rotor plate 50 located below the upper inlet padding 46 ).

When the pellet transferring groove 51 in which the pellet is filled with the rotor plate 50 is rotated is positioned in the air inlet hole 49 of the upper outlet pad 48, the main air supply port 44 of the top plate 41 And the air pushes down the pellet filled in the pellet feed groove 51 of the rotor plate 50 through the air inlet hole 49 of the upper outlet pad 48.

The pellet that has escaped from the pellet transfer groove 51 of the rotor plate 50 is discharged to the outside through the pellet discharge groove 54 of the lower outlet pad 53 and the discharge hole 58 of the base plate 55. That is, the outlet pipe 59 is connected to the discharge hole 58 of the base plate 55, so that the pellet can be moved toward the cleaning gun 70 through the outlet pipe 59.

The pellets can be discharged by the pressure of the air injected through the main air supply port 44 formed in the top plate 41. However, by using the auxiliary air supply ports 60 and 61 formed in the outlet pipe 59 The discharge may be induced.

That is, when air is supplied through the first auxiliary air supply port 60 of the outlet pipe 59, negative pressure is generated in the discharge hole 58. Therefore, the pellets can be rapidly moved toward the cleaning gun 70 by the pushing force of the air injected through the main air supply port 44 and the pulling force of the negative pressure generated in the discharge hole 58. That is, the pellet is prevented from being clogged in the discharge hole 58 or the outlet pipe 59 by the air injection through the first auxiliary air supply port 60.

The second auxiliary air supply port 61 is provided for supplying a separate gas. For example, when a high-pressure carbon dioxide tank is connected to the second auxiliary air supply port 61, a part of the high-pressure carbon dioxide is mixed with the pellets to form a dry ice snow, and the remaining gas is used as a jetting medium, ) Side of the spray nozzle.

Supply of air through the main air supply port 44, supply of air through the first auxiliary air supply port 60, supply of high-pressure carbon dioxide through the second auxiliary air supply port 61, Or may be selectively controlled through the operation unit 80. [ For example, in the cleaning operation using dry ice pellets, air and carbon dioxide are supplied through the main air supply port 44 and the second auxiliary air supply port 61 to perform a cleaning operation using dry ice snow, The air supply through the main air supply port 44 and the rotation of the rotor plate 50 can be interrupted while supplying air through the first auxiliary air supply port 60. [ That is, after the cleaning operation is completed, the cleaning site can be dried only by the air ejected from the cleaning gun 70.

As described in detail above, according to the present invention, pellets of a size suitable for cleaning purposes can be produced by controlling the pressing force of the pressure plate 26. At this time, the crushing plate 31 is divided into the inner blade 32 located at the center and the outer blade 33 located at the outer periphery, so that the load applied to one blade 32, 33 is reduced, It is possible to produce pellets of homogeneous size.

Since the pressurizing link 27 can freely move horizontally through the moving groove 24 between the upper part of the lid 23 and the upper part of the body 21, the remaining amount of the dry ice block can be adjusted by the ruler 29 indicated by the pointer 28 You can check it right away.

In addition, the produced pellets can be continuously discharged by a predetermined amount of pellets through the mixing unit 40, and the cleaning efficiency can be increased by spraying a predetermined amount of dry ice pellets.

In addition, auxiliary air or carbon dioxide can be supplied through the auxiliary air supply ports 60 and 61 provided in the outlet pipe 59, so that clogging of the discharge hole 58 can be prevented through the generation of negative pressure, Ice snow can be generated and used for cleaning.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, And additions should be considered as falling within the scope of the claims of the present invention.

10: Body
20: Feeding section
21: Body
22: seating space
23: Cover
23a:
24: Moving home
25: Press block
26: pressure plate
27: Pressurizing link
28: Instructions
29: Ruler
30: Crushing section
31: crush plate
32: inner blade
33: outer blade
34: slit
35: Crushing motor
36: Crushing power transmission part
37: Hopper
38: Air supply port
39: Vibrator
40: Mixing section
41: Top plate
42: Input ball
43: upper inlet pad seating groove
44: Main air supply port
45: upper outlet pad seating groove
46: Upper inlet pad
47: pellet injection ball
48: Upper outlet pad
49: Air injection hole
50: Rotor plate
51: Pellet feed groove
52: Lower inlet pad
53: Lower outlet pad
54: pellet discharge groove
55: base plate
56: Lower inlet pad seating groove
57: Lower outlet pad seating groove
58: discharge hole
59: Outlet pipe
60: First auxiliary air supply port
61: Second auxiliary air supply port
62: Mixing motor
63: Mixing power transmission part
70: Cleaning Gun
80:

Claims (7)

A feeding part for supplying the dry ice block;
A crushing unit for crushing dry ice blocks supplied through the feeding unit to produce pellets; And
And a mixing unit for supplying air to the pellets pulverized in the pulverizing unit to discharge a predetermined amount of pellets,
Wherein the crushing unit comprises:
An inner blade facing the inner side of the dry ice supplied through the feeding part and an outer blade facing the outer side of the dry ice, the crushing plate being rotated by receiving power from the crushing motor; And
And a hopper for temporarily storing the pellets pulverized by each blade of the crushing plate,
Wherein the mixing unit comprises:
An upper inlet pad seating groove is formed below the injection hole, and a main air supply port for supplying discharge air to another point of the upper portion is formed A top plate having an upper outlet pad seating groove formed under the main air supply port;
An upper inlet pad which is seated in the upper inlet pad seating groove of the top plate and in which a pellet introduction hole is formed;
An upper outlet pad which is seated in the upper outlet pad seating groove of the top plate and in which an air inlet hole for introducing air is formed;
A lower outlet pad seating groove is formed in an upper portion of a position corresponding to the upper inlet pad seating groove, a lower outlet pad seating groove is formed in an upper portion corresponding to the upper outlet pad seating groove, A base plate communicating from the seating groove to another point and having a discharge hole through which the pellet moves;
A lower inlet pad seated in the lower inlet pad seating groove of the base plate;
A lower outlet pad mounted on a lower outlet pad seating groove of the base plate and having pellet discharge grooves through which pellets are discharged; And
And a rotor plate rotatable between the top plate and the base plate, wherein the rotor plate has a plurality of pellet transfer grooves formed at a position corresponding to a radius of the pellet insertion hole of the upper inlet pad and an air introduction hole of the upper outlet pad,
The pellets introduced from the hopper are filled in the pellet transfer grooves of the upper plate through the pellet injection holes of the upper plate and the pellet feed holes of the upper plate and then the pellet transfer groove is filled with the pellet, Air is supplied through the main air supply port of the top plate to push the pellet filled in the pellet transfer groove of the rotor plate through the air introduction hole of the upper outlet pad And the pellet that has escaped from the pellet transfer groove can be discharged to the outside through the pellet discharge groove of the lower outlet pad and the discharge hole of the base plate.
The method according to claim 1,
Wherein the hopper is provided with an air supply port so that air is supplied through the air supply port to prevent the pellets from sticking to each other.
The method according to claim 1,
Wherein the hopper is provided with a vibrator so that the vibration of the vibrator prevents the pellet from sticking to the inner wall of the hopper.
delete The method according to claim 1,
Further comprising an outlet pipe communicating the discharge hole of the base plate with the cleaning gun, wherein at least one auxiliary air supply port is provided at an intermediate point of the discharge pipe.
The method according to claim 1,
The feeding unit includes:
A body having a seating space in which a dry ice block is seated;
A cover covering and protecting the seating space, the cover covering the seating space at a predetermined distance from the upper portion of the body so as to have a moving groove;
A pressure plate for pressing the dry ice block; And
And a guide for indicating the remaining amount of the dry ice block while being connected to the pressure plate through a moving groove between the upper portion of the body and the cover.
The method according to claim 6,
And the size of the pellet to be crushed by the crushing unit can be adjusted by controlling the pressure of the pressure plate to press the dry ice block.

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