CN117484405A - Sand blasting machine for hardware electroplating and use method thereof - Google Patents

Abstract

The invention discloses a sand blasting machine for hardware electroplating and a use method thereof, and relates to the technical field of sand blasting machines. According to the invention, after the sand grains and rust on the outer surface wall of the workpiece are treated by the main body mechanism and the cleaning mechanism, the rust is dissolved in water by adding the acidic substance, separation among the sand grains, the rust and the water can be finished by the subsequent separating device, and the sand grains are conveyed into the sand grain box, so that the sand grains are washed, the recycling of the sand grains is finished, the loss amount of sand materials is reduced, and the treatment cost of the workpiece is reduced.

Description

Sand blasting machine for hardware electroplating and use method thereof

Technical Field

The invention relates to the technical field of sand blasters, in particular to a sand blaster for hardware electroplating and a use method thereof.

Background

The sand blasting machine for hardware electroplating is a special device for hardware surface treatment, adopts a sand blasting technology, and impacts the hardware surface through sand grains sprayed at high speed to remove dirt, oxide layers, coatings and the like on the surface, meanwhile, the roughness of the product surface is improved, the binding force with an electroplated layer is enhanced, the sand blasting machine for hardware electroplating generally has the advantages of high efficiency, environmental protection, energy saving and the like, can meet the high requirements of hardware surface treatment, and in the use process, proper model and parameters of the sand blasting machine are required to be selected according to factors such as the material, surface condition, treatment requirement and the like of the product so as to achieve the optimal treatment effect.

Existing, for example, chinese patent nos.: the utility model provides a sand blasting machine for hardware electroplating in CN112318381A, its structure is including opening and shutting the bin gate, a support, the sand discharge mouth, the organism, the right side hinged joint of bin gate and organism opens and shuts, the sand discharge mouth is inlayed and is fixed in the lower extreme position of organism, organism and support welding mutually, through the thrust that the dull polish raw materials produced to the inboard of atress board, can make the atress board slide downwards along the frame under the cooperation of connecting block, thereby make the contact block of atress board bottom can laminate with the upper surface of taking Kong Wujin work piece, so make two atress boards can directly spout the aperture of taking Kong Wujin work piece with the dull polish raw materials inside, the outside through the outward blowout of mechanism is to the thrust that the board produced of cleaing away, and produce the vibration when pulling fast to the atress board through outer chamber when the dull polish raw materials stops spouting, can make the board inwards shrink along the guide slot, so make the atress board can be in the outside gliding in-process will accept the inboard attached dull polish raw materials of frame and push down.

The equipment can push off the frosted raw materials attached to the inner side of the bearing frame, but the conventional sand blasting machine is used for simple filtration in the treatment process, and can easily cause some rust and impurity to be carried in sand grains in the long-term use process, and repeatedly increases in the multiple use process, so that the subsequent impact effect is influenced.

Disclosure of Invention

The invention aims to provide a sand blasting machine for hardware electroplating, which effectively separates impurities and rust in sand grains so as to improve and utilize the impact treatment effect on workpieces, thereby effectively solving the problems in the background.

In order to achieve the above purpose, the present invention provides the following technical solutions: the sand blasting machine for hardware electroplating comprises a main body mechanism, wherein the outer surface wall of the main body mechanism is fixedly communicated with a cleaning mechanism, and the inner surface wall of the main body mechanism is fixedly inserted with a recovery mechanism;

the cleaning mechanism comprises a conveying pipe body, an output pipe is fixedly communicated with the outer surface wall of the conveying pipe body, a switch valve is fixedly communicated with the inside of the output pipe, an electromagnetic valve is fixedly communicated with the inside of the conveying pipe body, a cleaning box is fixedly communicated with the bottom of the conveying pipe body, a solid-liquid separator is fixedly communicated with one side of the outer wall of the cleaning box, a liquid discharge pipe is fixedly communicated with the bottom of the solid-liquid separator, a communicating pipe is fixedly communicated with one side of the outer wall of the solid-liquid separator, a centrifugal machine is fixedly communicated with the output end of the communicating pipe, and a sand box is fixedly communicated with the output end of the centrifugal machine.

Preferably, the top of the sand box is fixedly communicated with two sand conveying pipelines, and the output ends of the two sand conveying pipelines are fixedly communicated with corrugated pipes.

Preferably, the output ends of the two corrugated pipes are fixedly communicated with sand blasting guns, the outer surface walls of the two sand blasting guns are fixedly communicated with air pressure pipes, and the inner surface wall of the output pipe is fixedly inserted with a filter screen.

Preferably, the main body mechanism comprises a sand blasting treatment box, a leakage box is fixedly communicated with the bottom of the sand blasting treatment box, a fixing column is fixedly sleeved on the outer surface wall of the sand blasting treatment box, and four anti-slip pads are fixedly inserted into the bottom of the fixing column.

Preferably, the inner surface wall of the fixed column is fixedly connected with two connecting plates, a transparent acrylic plate is arranged on one side of the outer wall of the sand blasting treatment box, and two operation grooves are formed on one side of the outer wall of the sand blasting treatment box.

Preferably, two holes are formed in the top of the sand blasting treatment box, and a fixing groove is formed in one side of the outer wall of the sand blasting treatment box.

Preferably, the inside of sandblast treatment case is through hinge fixedly connected with door plant, sandblast treatment case outer wall one side fixedly connected with locking piece one, outer wall one side fixedly connected with locking piece two of door plant, the inner wall bottom fixedly connected with two slides of sandblast treatment case, two through the slider slip between the inside of slide is inlayed and is placed the board.

Preferably, the recycling mechanism comprises a fan, the output end of the fan is fixedly communicated with a collecting ring, and the output end of the collecting ring is fixedly communicated with an exhaust pipeline.

Preferably, the outer surface walls of the two sand conveying pipelines are fixedly inserted into the holes, the outer surface walls of the fans are fixedly inserted into the fixing grooves, the bottoms of the leak boxes are fixedly communicated with the input end of the conveying pipe body, and the bottoms of the sand boxes are fixedly connected with the tops of the sand blasting treatment boxes.

The application method of the sand blasting machine for hardware electroplating comprises the following steps:

step one: firstly, when the equipment is used, sand is inverted in the sand box for preservation treatment, then the sand can be effectively conveyed into the sand blasting gun under the suction of two sand conveying pipelines, in the suction process, the length and the angle position can be adjusted by means of the corrugated pipe, compressed gas can be conveyed into the sand blasting gun through the air pressure pipe, and the sand is sprayed out through the sand blasting gun through high-pressure gas, so that the rust removal treatment on the outer surface wall of the component to be processed is completed;

step two: the sand particles then carry impurities and rust, by gravity, to the interior of the leak box and can then add some acidic substances to the interior of the leak box such as: dilute sulfuric acid or hydrochloric acid, when the acidic substance contacts with rust, chemical reaction occurs, so that the rust is dissolved or decomposed and is melted in water, sand grains at the top of the rust and water dissolved in the rust can be dropped downwards by opening the switch valve, the sand grains therein can be filtered by the filter screen, and sewage after the reaction can be discharged through the output pipe;

step three: after sewage treatment is accomplished, the solenoid valve can be again opened this moment and the sand grain is placed in the inside of wasing the case to accomplish the inside of wasing the case and wash the sand grain, and wash the case and wash the inside that the moisture after the back can flow into solid-liquid separation ware, and under the effect of solid-liquid separation ware, accomplish the separation is implemented to the moisture after sand grain and washing, and implement the liquid transport away through the fluid-discharge tube, and under the effect of centrifuge self, self produces centrifugal force, can draw the sand grain after wasing to self, and carry the inside of sand grain case again, accomplish a cyclic treatment of sand grain, carry out reuse to the sand grain.

Compared with the prior art, the invention has the beneficial effects that:

according to the invention, after the sand grains and rust on the outer surface wall of the workpiece are treated by the main body mechanism and the cleaning mechanism, the rust is dissolved in water by adding the acidic substance, separation among the sand grains, the rust and the water can be finished by the subsequent separating device, and the sand grains are conveyed into the sand grain box, so that the sand grains are washed, the recycling of the sand grains is finished, the loss amount of sand materials is reduced, and the treatment cost of the workpiece is reduced.

According to the invention, under the action of the main body mechanism, the cleaning mechanism and the recovery mechanism, the impact treatment of the workpiece can be performed by the two sand blasting guns, so that rust on the outer surface wall of the workpiece is removed, and under the action of the corrugated pipe and the moving assembly in the corrugated pipe, the position, the angle and the depth of the workpiece can be adjusted, so that the treatment efficiency can be improved.

According to the invention, dust in the internal processing environment is adsorbed by the blower in the process of processing the workpiece by the gravel under the action of the main body mechanism, the cleaning mechanism and the recovery mechanism, and the dust can be conveyed out, so that the influence of the generated dust on the outside is reduced.

Drawings

FIG. 1 is a perspective view of a front view of a sand blaster for electroplating hardware in accordance with the present invention;

FIG. 2 is a perspective exploded view of the main body mechanism of the sandblasting machine for hardware plating according to the present invention;

FIG. 3 is a perspective exploded view of a part of the main body mechanism in a sandblasting machine for hardware electroplating according to the present invention;

FIG. 4 is a perspective view of a cleaning mechanism in a sandblasting machine for electroplating hardware in accordance with the present invention;

FIG. 5 is a perspective cutaway view of a cleaning mechanism in a sandblasting machine for electroplating hardware in accordance with the present invention;

FIG. 6 is a partial perspective view of a cleaning mechanism in a sandblasting machine for electroplating hardware in accordance with the present invention;

fig. 7 is a perspective exploded view of a recovery mechanism in a sandblasting machine for plating hardware according to the present invention.

In the figure: 1. a main body mechanism; 101. a sand blasting treatment box; 102. a leak box; 103. fixing the column; 104. an anti-slip pad; 105. a connecting plate; 106. a transparent acrylic plate; 107. an operation groove; 108. a hole; 109. a fixing groove; 110. a door panel; 111. a first locking block; 112. a second locking block; 113. a slide; 114. placing a plate; 2. a cleaning mechanism; 201. a delivery tube body; 202. an output pipe; 203. a switch valve; 204. an electromagnetic valve; 205. a cleaning box; 206. a solid-liquid separator; 207. a liquid discharge pipe; 208. a communicating pipe; 209. a centrifuge; 210. a sand box; 211. a sand conveying pipeline; 212. a bellows; 213. a sand blasting gun; 214. an air pressure pipe; 215. a filter screen; 3. a recovery mechanism; 301. a blower; 302. a collection ring; 303. an exhaust gas conduit.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1-7, the invention provides a sand blasting machine for hardware electroplating, which comprises a main body mechanism 1, wherein a cleaning mechanism 2 is fixedly communicated with the outer surface wall of the main body mechanism 1, and a recovery mechanism 3 is fixedly inserted into the inner surface wall of the main body mechanism 1;

the cleaning mechanism 2 comprises a conveying pipe body 201, an output pipe 202 is fixedly communicated with the outer surface wall of the conveying pipe body 201, a switch valve 203 is fixedly communicated with the inside of the output pipe 202, an electromagnetic valve 204 is fixedly communicated with the inside of the conveying pipe body 201, a cleaning box 205 is fixedly communicated with the bottom of the conveying pipe body 201, a solid-liquid separator 206 is fixedly communicated with one side of the outer wall of the cleaning box 205, a liquid drain pipe 207 is fixedly communicated with the bottom of the solid-liquid separator 206, a communicating pipe 208 is fixedly communicated with one side of the outer wall of the solid-liquid separator 206, a centrifuge 209 is fixedly communicated with the output end of the communicating pipe 208, and a sand box 210 is fixedly communicated with the output end of the centrifuge 209.

According to fig. 4-6: the top of sand box 210 is fixed to be linked together and is had two sand conveying pipelines 211, and the output of two sand conveying pipelines 211 is all fixed to be linked together and is had bellows 212, firstly under the effect of two sand conveying pipelines 211, can draw the sand to self inside effectively to can carry out adjustment processing to position, angle and length effectively at two bellows 212, and can adjust according to user's demand.

According to fig. 4-6: the output ends of the two corrugated pipes 212 are fixedly communicated with sand blasting guns 213, the outer surface walls of the two sand blasting guns 213 are fixedly communicated with air pressure pipes 214, a filter screen 215 is fixedly inserted into the inner surface wall of the output pipe 202, the two air pressure pipes 214 can convey air after external compression to the inside of the sand blasting guns 213, effective power can be effectively provided for spraying sand grains, and the impacted sand grains can be subjected to rust removal treatment on workpieces to be treated.

According to fig. 2-3: the main body mechanism 1 comprises a sand blasting treatment box 101, a drain box 102 is fixedly communicated with the bottom of the sand blasting treatment box 101, a fixing column 103 is fixedly sleeved on the outer surface wall of the sand blasting treatment box 101, four anti-slip pads 104 are fixedly inserted into the bottom of the fixing column 103, sand grains and rust impurities after treatment can fall downwards under the action of gravity, the sand grains and rust impurities can be collected in the drain box 102, moisture and acidic substances are added in the drain box 102, and the acidic substances and rust can be kept to react, so that the acidic substances and the rust are dissolved in water.

According to fig. 2-3: the interior surface wall fixedly connected with two connecting plates 105 of fixed column 103, the outer wall one side of sandblast treatment case 101 sets up transparent acrylic board 106, and two operation grooves 107 have been seted up to outer wall one side of sandblast treatment case 101, thereby avoid outside operating personnel to see the inside rust cleaning situation of sandblast treatment case 101 through transparent acrylic board 106 under the effect of transparent acrylic board 106.

According to fig. 2-3: two holes 108 are formed in the top of the sandblasting box 101, a fixing groove 109 is formed in one side of the outer wall of the sandblasting box 101, the two holes 108 are formed, a worker can insert hands into the two holes 108 conveniently, and control processing of the two sandblasting guns 213 is completed.

According to fig. 2-3: the inside of the sand blasting treatment box 101 is fixedly connected with a door plate 110 through a hinge, one side of the outer wall of the sand blasting treatment box 101 is fixedly connected with a first locking piece 111, one side of the outer wall of the door plate 110 is fixedly connected with a second locking piece 112, the bottom of the inner wall of the sand blasting treatment box 101 is fixedly connected with two sliding seats 113, a placing plate 114 is embedded between the inside of the two sliding seats 113 through sliding blocks, firstly, a workpiece to be treated is placed at the top of the placing plate 114, and under the action of the sliding blocks, the placing plate 114 can be kept to transversely move at the tops of the two sliding seats 113, so that the position movement is kept, and the position adjustment is improved.

According to fig. 7: the recycling mechanism 3 comprises a fan 301, the output end of the fan 301 is fixedly connected with a collecting ring 302, the output end of the collecting ring 302 is fixedly connected with an exhaust pipeline 303, and firstly dust generated in the sand blasting treatment box 101 can be effectively collected under the action of the fan 301 and is conveyed out through the exhaust pipeline 303.

According to the figures 2-7: the outer surface walls of the two sand conveying pipelines 211 are fixedly inserted into the holes 108, the outer surface walls of the fans 301 are fixedly inserted into the fixing grooves 109, the bottom of the leak box 102 is fixedly communicated with the input end of the conveying pipe body 201, the bottom of the sand box 210 is fixedly connected with the top of the sand blasting treatment box 101, and the connection among the main body mechanism 1, the cleaning mechanism 2 and the recovery mechanism 3 can be completed under the connection of a series of components, so that the sand is cleaned and recycled.

The working principle of the whole mechanism is as follows: when the device is used, a workpiece to be processed is placed on the top of the placing plate 114, the sliding blocks are embedded in the sliding seat 113 in a sliding manner, the placing plate 114 can be kept to transversely move on the top of the two sliding seats 113, the position movement is completed, sand is conveyed into the sand box 210 for storage, then the sand can be effectively conveyed into the sand gun 213 respectively under the action of the two sand conveying pipelines 211 and the corrugated pipe 212, hands can be inserted into the two operation grooves 107 by a user, the operation processing of the two sand guns 213 can be effectively completed, the length, the angle and the position of the operation can be adjusted by the corrugated pipe 212, the compressed gas can be conveyed into the sand gun 213 by the air pressure pipe 214, the sand can be sprayed out by the sand gun 213, the rust removal processing is completed on the outer surface wall of the component to be processed, then the sand can be carried with impurities and falls into the interior of the drain box 102 under the action of gravity, and acidic substances (for example: dilute sulfuric acid or hydrochloric acid), when the acidic substance comes into contact with rust, chemical reaction occurs, causing the rust to dissolve or decompose and melt in water, and the on-off valve 203 is opened to drop down sand particles at the top thereof and water dissolved in the rust, and the sand particles therein can be filtered by the filter screen 215, and wherein the sewage after the reaction is discharged through the output pipe 202, while the sand particles remain inside the delivery pipe body 201, and then the solenoid valve 204 is opened again to drop the sand particles inside the washing tank 205, and the sand particles are washed inside the washing tank 205, the washing tank 205 and the water after washing flow into the solid-liquid separator 206, and the separation of the sand and the water after washing is completed by the solid-liquid separator 206, and the liquid is conveyed out by the liquid discharge pipe 207, and the centrifugal force is generated by the centrifugal machine 209 itself, and a negative pressure is generated in the communicating pipe 208, so that the sand after the cleaning can be finally drawn into the centrifugal machine itself, and conveyed to the sand tank 210 again for storage, thereby forming the recycling treatment of the sand.

The invention also provides a use method of the sand blaster for hardware electroplating, which comprises the following steps:

step one: firstly, when the device is used, sand is inverted in the sand box 210 for storage treatment, then the sand can be effectively conveyed into the sand blasting gun 213 under the suction of the two sand conveying pipelines 211, in the suction process, the length and the angle position can be adjusted by means of the corrugated pipe 212, compressed gas can be conveyed into the sand blasting gun 213 by the air pressure pipe 214, and the sand is sprayed out by the sand blasting gun 213 by high-pressure gas, so that rust removal treatment on the outer surface wall of an assembly to be processed is completed;

step two: the sand particles then carry impurities and rust and drop into the interior of the leak box 102 by gravity, and then some acidic substances (e.g., dilute sulfuric acid or hydrochloric acid) can be added into the interior of the leak box 102, when the acidic substances are in contact with the rust, chemical reaction occurs, so that the rust is dissolved or decomposed and melted in water, and the sand particles on the top of the sand particles and the water dissolved in the rust can be dropped downwards by opening the switch valve 203, and the sand particles therein can be filtered by the filter screen 215, and the sewage after the reaction can be discharged through the output pipe 202;

step three: after the sewage treatment is completed, the electromagnetic valve 204 is opened again at this time, so that the sand can be placed in the cleaning tank 205, the sand is cleaned in the cleaning tank 205, the cleaning tank 205 and the cleaned water can flow into the solid-liquid separator 206, the separation of the sand and the cleaned water can be completed under the action of the solid-liquid separator 206, the liquid is conveyed out through the liquid discharge pipe 207, the centrifugal force is generated by the centrifugal machine 209, the cleaned sand can be drawn into the centrifugal machine, and the sand is conveyed into the sand tank 210 again, one circulation treatment of the sand is completed, and the sand is reused.

Although the present invention has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present invention.

Claims (10)

1. The utility model provides a sand blasting machine for hardware electroplating which characterized in that: the cleaning device comprises a main body mechanism (1), wherein the outer surface wall of the main body mechanism (1) is fixedly communicated with a cleaning mechanism (2), and the inner surface wall of the main body mechanism (1) is fixedly inserted with a recovery mechanism (3);

the cleaning mechanism (2) comprises a conveying pipe body (201), an output pipe (202) is fixedly communicated with the outer surface wall of the conveying pipe body (201), an on-off valve (203) is fixedly communicated with the inside of the output pipe (202), an electromagnetic valve (204) is fixedly communicated with the inside of the conveying pipe body (201), a cleaning box (205) is fixedly communicated with the bottom of the conveying pipe body (201), a solid-liquid separator (206) is fixedly communicated with one side of the outer wall of the cleaning box (205), a liquid discharge pipe (207) is fixedly communicated with the bottom of the solid-liquid separator (206), a communicating pipe (208) is fixedly communicated with one side of the outer wall of the solid-liquid separator (206), a centrifugal machine (209) is fixedly communicated with the output end of the communicating pipe (208), and a sand box (210) is fixedly communicated with the output end of the centrifugal machine (209).

2. The blasting machine for electroplating hardware according to claim 1, wherein: two sand conveying pipelines (211) are fixedly communicated with the top of the sand box (210), and corrugated pipes (212) are fixedly communicated with the output ends of the two sand conveying pipelines (211).

3. The blasting machine for electroplating hardware according to claim 2, wherein: the output ends of the two corrugated pipes (212) are fixedly communicated with sand blasting guns (213), the outer surface walls of the two sand blasting guns (213) are fixedly communicated with air pressure pipes (214), and a filter screen (215) is fixedly inserted into the inner surface wall of the output pipe (202).

4. A sandblasting machine for electroplating hardware according to claim 3, wherein: the main body mechanism (1) comprises a sand blasting treatment box (101), a leak box (102) is fixedly communicated with the bottom of the sand blasting treatment box (101), a fixing column (103) is fixedly sleeved on the outer surface wall of the sand blasting treatment box (101), and four anti-slip pads (104) are fixedly inserted at the bottom of the fixing column (103).

5. The sandblasting machine for electroplating hardware according to claim 4, wherein: the inner surface wall of fixed column (103) fixedly connected with two connecting plates (105), outer wall one side of sandblast treatment case (101) sets up transparent acrylic board (106), two operation grooves (107) have been seted up to outer wall one side of sandblast treatment case (101).

6. The sandblasting machine for electroplating hardware according to claim 5, wherein: two holes (108) are formed in the top of the sand blasting treatment box (101), and a fixing groove (109) is formed in one side of the outer wall of the sand blasting treatment box (101).

7. The sandblasting machine for electroplating hardware according to claim 6, wherein: the inside of sandblast treatment case (101) is through hinge fixedly connected with door plant (110), sandblast treatment case (101) outer wall one side fixedly connected with locking piece one (111), outer wall one side fixedly connected with locking piece two (112) of door plant (110), the inner wall bottom fixedly connected with two slide (113) of sandblast treatment case (101), two through the slider slip between the inside of slide (113) inlay and be equipped with place board (114).

8. The sandblasting machine for electroplating hardware according to claim 7, wherein: the recycling mechanism (3) comprises a fan (301), the output end of the fan (301) is fixedly communicated with a collecting ring (302), and the output end of the collecting ring (302) is fixedly communicated with an exhaust pipeline (303).

9. The sandblasting machine for electroplating hardware according to claim 8, wherein: the outer surface walls of the two sand conveying pipelines (211) are fixedly inserted into the holes (108), the outer surface walls of the fans (301) are fixedly inserted into the fixing grooves (109), the bottoms of the leak boxes (102) are fixedly communicated with the input end of the conveying pipe body (201), and the bottoms of the sand boxes (210) are fixedly connected with the top of the sand blasting treatment box (101).

10. A method of using the sandblasting machine for hardware plating according to claim 9, comprising the steps of:

s1: firstly, when the device is used, sand is inverted to be stored in the sand box (210), then the sand can be effectively conveyed into the sand spraying gun (213) under the suction of two sand conveying pipelines (211), in the suction process, the length and the angle position can be adjusted by means of the corrugated pipe (212), compressed gas can be conveyed into the sand spraying gun (213) through the air pressure pipe (214), and the sand is sprayed out by the sand spraying gun (213) through high-pressure gas, so that rust removal treatment on the outer surface wall of a component to be processed is completed;

s2: then sand particles carry impurities and rust and fall into the interior of the leak box (102) under the action of gravity, and then acidic substances (such as dilute sulfuric acid or hydrochloric acid) can be added into the interior of the leak box (102), when the acidic substances are contacted with the rust, chemical reaction can occur, so that the rust is dissolved or decomposed and is melted in water, and the sand particles on the top of the sand particles and the water dissolved in the rust can be downwards fallen by opening the switch valve (203), and the sand particles can be filtered by the filter screen (215), and sewage after the reaction can be discharged through the output pipe (202);

s3: after the sewage treatment is finished, the electromagnetic valve (204) is opened again at this moment, sand can be placed in the cleaning box (205), and the sand is cleaned in the cleaning box (205), and the water after the cleaning box (205) and the cleaning can flow into the solid-liquid separator (206), and under the action of the solid-liquid separator (206), the separation of the sand and the water after the cleaning is finished, and the liquid is conveyed out through the liquid discharge pipe (207), and under the action of the centrifugal machine (209), centrifugal force is generated, the sand after the cleaning can be drawn into the centrifugal machine and conveyed into the sand box (210), one circulation treatment of the sand is finished, and the sand is recycled.