CN114130143A

CN114130143A - Air purification device based on dust of polishing

Info

Publication number: CN114130143A
Application number: CN202111212407.7A
Authority: CN
Inventors: 吴逸敏
Original assignee: Individual
Current assignee: Huizhou Yiwei New Energy Co ltd
Priority date: 2021-10-18
Filing date: 2021-10-18
Publication date: 2022-03-04
Anticipated expiration: 2041-10-18
Also published as: CN114130143B

Abstract

The invention is suitable for the technical field of dust treatment, and provides an air purification device based on polishing dust, which comprises a flared opening, a first pipeline, an air storage tank, a second pipeline, a dust treatment device, a wastewater processor and a water tank, wherein the flared opening is communicated with the air storage tank through the first pipeline, the upper surface of the air storage tank is communicated with six second pipelines, the other ends of the six second pipelines are respectively communicated with the dust treatment device, a third pipeline is connected below the dust treatment device, the wastewater processor is connected below the third pipeline and is communicated with the water tank through a fourth pipeline, and a fifth pipeline connected with the dust treatment device is arranged in the water tank. The dust-containing gas is sucked into the dust treatment device, and after the dust-containing gas is removed by wet-type water, the water in the air is further filtered, and clean air is discharged, so that the aim of purifying the air is achieved.

Description

Air purification device based on dust of polishing

Technical Field

The invention belongs to the technical field of dust treatment, and particularly relates to an air purification device based on polishing dust.

Background

Grinding is an indispensable process in machining, a large amount of dust is inevitably generated in the grinding process, if the grinding dust is not timely treated, the working environment is seriously polluted, the respiratory tract system of a human body is directly damaged, people who are in the working environment for a long time easily generate respiratory tract diseases, and the health of related workers is seriously damaged, so that the development of a related dust treatment device is of great significance to the development of the mechanical process.

For further reducing cost in business, energy-concerving and environment-protective, present dust treatment device of polishing adopts spray column water bath dust removal mostly, has caused the not complete problem of removing dust inadequately, provides an air purification device based on the dust of polishing from this and has the important function to solving above problem.

Disclosure of Invention

The invention provides an air purification device based on grinding dust, and aims to solve the problem of dust gas pollution.

In order to achieve the purpose, the invention provides an air purification device based on grinding dust, which comprises a flaring, a first pipeline, an air storage tank, a second pipeline, a dust treatment device, a wastewater processor and a water tank, the flaring is communicated with the gas storage tank through the first pipeline, the upper surface of the gas storage tank is communicated with six second pipelines, the other ends of the six second pipelines are respectively communicated with the dust treatment device, a third pipeline is connected below the dust treatment device, a fourth electromagnetic valve is arranged in the third pipeline, the wastewater processor is connected below the third pipeline and is communicated with the water tank through a fourth pipeline, the water tank is provided with a water inlet pipe, the bottom of the water tank is provided with a water pump, the water pump is provided with a fifth pipeline, and the fifth pipeline is connected with the dust treatment device.

Preferably, a fan is arranged in the front end of the first pipeline, a dust collecting device is arranged in the middle end of the first pipeline, the dust collecting device comprises a first filter screen, a collecting hole and a collecting box, the collecting hole is funnel-shaped, a switch door is arranged in the collecting box, and a first handle is arranged on the switch door.

Preferably, a first electromagnetic valve is arranged in the second pipeline, and the tail end of an air outlet of the second pipeline is arched.

Preferably, the dust treatment device comprises a mixer, a stirrer and a spraying device, wherein a first hole, a second hole, a third hole, an air outlet cylinder and a flow collecting plate are arranged in the mixer, the second pipeline is arranged on the first hole, the spraying device is arranged in the second hole in a sealing manner and comprises a mist sprayer, a water sprayer, branch pipelines, a sixth pipeline and a joint, the upper surface of the joint is arranged in the fifth pipeline in a sealing manner, six pipeline bodies are arranged in the side surfaces of the joint in a sealing manner, the sixth pipeline bodies are communicated with the branch pipelines, the water sprayer is arranged at the tail end of the sixth pipeline body, the mist sprayer is arranged at the tail end of the branch pipeline body, the water sprayer and the mist sprayer are funnel-shaped, the mist sprayer is positioned below the water sprayer, the third hole is arranged in the third pipeline in a sealing manner, the gas outlet cylinder sets up the upper surface of blender, the inside fifth solenoid valve that is provided with of gas outlet cylinder, the inside water purifier that is provided with of gas outlet cylinder, the fifth solenoid valve is located the water purifier below, the agitator includes primary shaft and motor, the primary shaft passes the bottom of blender with the current collector plate and with it seal installation, be provided with impeller and stirring body on the primary shaft, the stirring body is the loudspeaker heliciform, the lower extreme of primary shaft with motor erection joint, motor and outside fixed connection.

Preferably, a second electromagnetic valve is arranged on the sixth pipeline, the second electromagnetic valve is located below a joint of the sixth pipeline and the branch pipeline, and a third electromagnetic valve is arranged on the branch pipeline.

Preferably, the wastewater treatment apparatus is provided with a first filter.

Preferably, a check valve is provided in the fourth pipe.

Preferably, the wastewater treatment device comprises a first box body, a second box body and a third box body, wherein the first box body and the third box body are fixedly connected with the outside, a first annular chute is formed on the first box body, a second chute is formed on the first annular chute, a first sliding block and a second handle are arranged on the second box body, a second annular groove is formed in the upper surface of the third box body, a water level sensing device is arranged on the inner side surface of the second box body, a third annular groove is formed in the side surface of the third box body, a second sliding block is arranged in the third annular groove, an anti-misoperation device is arranged at the starting position of the second sliding block and comprises a fixer and a protection plate, the fixer is fixedly arranged at the upper end of the third annular groove, the protection plate is rotatably connected with the fixer, and the second sliding block is made of a magnet, the material of third annular groove place circumference is the aluminum alloy, the medial surface of third box is provided with the installation piece, install on the installation piece the second filter, the second filter includes fixed plate, commentaries on classics board, clearance board and collector, the commentaries on classics board with the lower surface of clearance board all is provided with brush 22, the fixed plate with installation piece fixed connection, be provided with fourth annular recess on the fixed plate, the commentaries on classics board with be provided with third slider and fourth slider on the clearance board respectively, third slider and fourth slider with fourth annular recess rotates and is connected, the commentaries on classics board with clearance board relative fixed connection, be provided with an arc opening on the fixed plate, arc opening below fixed connection the collector, the fourth slider is the magnet material.

Preferably, a seventh pipeline is arranged on the side surface of the air storage tank, the seventh pipeline inclines upwards, a pressure valve is arranged in the seventh pipeline, and an elastic air bag is installed at the tail end of the seventh pipeline in a sealing mode.

The beneficial technical effects related to the implementation of the invention are as follows: send into dust treatment device through the gas that the fan will contain the dust, dust treatment device sprays through carrying out the mist earlier to the gas that contains the dust and makes partial dust combine with the mist water droplet earlier, carries out the processing that the stirring of spraying water mixes to it again and makes the abundant absorption of remaining dust reach the effect of abundant dust removal on the water droplet, then discharges sewage, further discharges clean gas in order to reach the effect of purifying gas, above-mentioned sewage is reuse in dust treatment again after being handled, environmental protection and energy saving.

Drawings

Fig. 1 is a schematic view of the overall structure of a first embodiment of a polishing dust-based air cleaning apparatus provided by the present invention;

FIG. 2 is a schematic cross-sectional view of the first conduit shown in FIG. 1;

FIG. 3 is a schematic view of the installation of the dust handling apparatus shown in FIG. 1;

FIG. 4 is a schematic cross-sectional view of the dust handling apparatus shown in FIG. 3;

FIG. 5 is a schematic cross-sectional view of the mixer shown in FIG. 4;

FIG. 6 is a schematic cross-sectional view of the tank shown in FIG. 1;

fig. 7 is a schematic view of the overall structure of a second embodiment of the polishing dust-based air cleaning apparatus provided by the present invention;

FIG. 8 is a schematic view showing the construction of the wastewater treatment apparatus shown in FIG. 7;

FIG. 9 is a schematic cross-sectional view of the wastewater processor shown in FIG. 7;

FIG. 10 is a schematic structural view of the second casing shown in FIG. 8;

FIG. 11 is a bottom view of the first tank shown in FIG. 8;

fig. 12 is a schematic view showing the overall structure of a second filter of a second embodiment of the polishing dust-based air cleaning apparatus according to the present invention;

FIG. 13 is a schematic cross-sectional view of the second filter shown in FIG. 12;

fig. 14 is a schematic structural diagram of the whole of a third embodiment of the air cleaning device based on grinding dust provided by the invention.

1-flaring; 2-a first conduit; 201-a fan; 202-a first screen; 203-a collection well; 3-a collection box; 301-opening and closing the door; 302-a first handle; 4-a gas storage tank; 401-a seventh conduit; 402-an elastic balloon; 5-a second conduit; 501-a first electromagnetic valve; 6-a mixer; 601-branch pipes; 602-a sixth conduit; 604-a linker; 605-a motor; 606-a first axis; 607-an impeller; 608-stirring body; 609-mist sprayer; 610-water sprayer; 611-a second hole; 612-an air outlet cylinder; 613-first hole; 614-current collecting plate; 615-mounting holes; 616-a third aperture; 7-a second box body; 701-a second handle; 702-a first slider; 8-a fourth conduit; 9-a water tank; 901-water inlet pipe; 10-a fifth pipeline; 11-a third conduit; 12-a first box; 1201-a first annular chute; 1202-a second runner; 13-a third box; 1301-a third annular groove; 1302-a second slider; 1303-a holder; 1304-protective plate; 1305 — a second annular groove; 1306-a mounting block; 14-a second filter; 15-a water pump; 16-a fixed plate; 1601-fourth annular groove; 17-rotating the plate; 1701-third slider; 18-a collector; 19-cleaning the plate; 20-a fourth slider; 21-a connecting shaft; 22-a brush; 23-a wastewater processor; 24-first filter.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration and are not intended to limit the invention.

Example 1:

referring to fig. 1-6, the polishing dust-based air purification device provided by the invention comprises an expansion opening 1, a first pipeline 2, an air storage tank 4, a second pipeline 5, a dust treatment device, a wastewater processor 23 and a water tank 9, wherein the expansion opening 1 is communicated with the air storage tank 4 through the first pipeline 2, six second pipelines 5 are communicated with the upper surface of the air storage tank 4, the other ends of the six second pipelines 5 are respectively communicated with the dust treatment device, a third pipeline 11 is connected below the dust treatment device, a fourth electromagnetic valve is arranged in the third pipeline 11, the wastewater processor 23 is connected below the third pipeline 11, the wastewater processor 23 is communicated with the water tank 9 through a fourth pipeline 8, a water inlet pipe 901 is arranged in the water tank 9, a water pump 15 is arranged at the bottom of the water tank 9, a fifth pipeline 10 is arranged on the water pump 15, and the fifth pipeline 10 is connected with the dust treatment device.

The inside fan 201 that is provided with of front end of first pipeline 2, the inside dust collecting device that is provided with of middle-end of first pipeline 2, dust collecting device include first filter screen 202, collecting hole 203, collecting box 3, and collecting hole 203 is for leaking hopper-shaped, is provided with switch door 301 in the collecting box 3, is provided with the first in command 302 on the switch door 301.

Because fan 201, first filter screen 202, collection hole 203, collecting box 3 and the setting of switch door 301 for the air of the dusty of exterior space is inhaled and is held back the dust of large granule and further collects it in collecting box 3, can discharge it after collecting full a certain amount of dust, has consequently alleviateed the processing burden of follow-up dust treatment device to the dust, and dust removal effect is better, and can prolong dust treatment device's life.

The second pipeline 5 is provided with a first electromagnetic valve 501, and the tail end of the air outlet of the second pipeline 5 is arched.

Due to the design of the first electromagnetic valve 501 and the arched tail end of the air outlet of the second pipeline 5, the volume of the air containing dust entering the dust processing device can be controlled, and the water flow in the dust processing device is prevented from being poured back to the second pipeline 5 when the dust processing device works.

The dust treatment device comprises a mixer 6, a stirrer and a spraying device, wherein the mixer is provided with a first hole 613, a second hole 611, a third hole 616, an air outlet cylinder 612 and a current collecting plate 614, the first hole 613 is provided with a second pipeline 5, the second hole 611 is provided with the spraying device in a sealing way, the spraying device comprises an atomizing sprayer 609, a water sprayer 610, a branch pipeline 601, a sixth pipeline 602 and a connector 604, the upper surface of the connector 604 is mounted with a fifth pipeline 10 in a sealing way, the side surface of the connector 604 is mounted with six sixth pipelines 602 in a sealing way, the sixth pipeline 602 is communicated with the branch pipeline 601, the tail end of the sixth pipeline 602 is provided with the water sprayer 610, the tail end of the branch pipeline 601 is provided with an atomizing 609, the water sprayer 610 and the atomizing 609 are both funnel-shaped, the atomizing 609 is positioned below the water sprayer 610, the third hole 616 is mounted with the third pipeline 11 in a sealing way, the air outlet cylinder 612 is arranged on the upper surface of the mixer 6, the air outlet cylinder 612 is internally provided with a fifth electromagnetic valve, the air outlet cylinder 612 is internally provided with a water filter, the fifth electromagnetic valve is positioned below the water filter, the stirrer comprises a first shaft 606 and a motor 605, the first shaft 606 penetrates through the bottom of the mixer 6 and the flow collecting plate 614 and is hermetically mounted with the flow collecting plate, the first shaft 606 is provided with an impeller 607 and a stirring body 608, the stirring body 608 is in a trumpet spiral shape, the lower end of the first shaft 606 is fixedly connected with the motor 605, and the motor 605 is fixedly connected with the outside.

Because sprinkler 610 and mist diffuser 609 are hourglass hopper-shaped, make spun fog drop and water droplet fully contact with pending dust, stirring body 608 can intensive mixing for the loudspeaker heliciform makes and is full of in blender 6 when being full of suitable water, make the dust adhere to on water completely, reach better dust removal effect, can not obstruct the rising of impeller 607 during operation air current simultaneously, thereby make the air after being purified can discharge from play chimney 612 comparatively smoothly, because the setting of current collector 614, make the sewage after handling conveniently discharge.

A second electromagnetic valve is arranged on the sixth pipeline 602, the second electromagnetic valve is located below the joint of the sixth pipeline 602 and the branch pipeline 601, and a third electromagnetic valve is arranged on the branch pipeline 601.

Due to the arrangement of the second electromagnetic valve and the third electromagnetic valve, the mist sprayer 609 on the branch pipeline 601 can work firstly through the control switch, and the water sprayer 610 on the sixth pipeline 602 works later, so that part of dust is firstly combined with mist, and the rest dust is combined with water drops, and a better dust removal effect can be achieved.

The wastewater treatment unit 23 is provided with a first filter 24.

Due to the arrangement of the first filter 24, the waste water can be recycled.

A one-way valve is arranged in the fourth conduit 8.

Due to the one-way valve, the water in the water tank 9 does not flow into the wastewater processor 23.

The working principle of the embodiment is as follows: the fourth electromagnetic valve and the fifth electromagnetic valve are closed firstly, the fan 201 sucks air containing dust from the flaring 1, the air enters the air storage tank 4 and further enters the mixer 6 from the second pipeline 5, when the air content in the mixer 6 reaches a certain volume, the first electromagnetic valve 501 is controlled to close the second pipeline 5, the subsequently sucked air is temporarily stored in the air storage tank 4, the mist sprayer 609 works to enable part of dust to be combined with mist drops and fall, the water sprayer 610 sprays water to enable a proper amount of water to be stored in the mixer 6, the stirrer 608 further works to enable the dust to be completely combined with water flow, the fourth electromagnetic valve is further opened to enable sewage to enter the third pipeline 11 from the collecting plate 614 and to be discharged into the waste water processor 23, the fifth electromagnetic valve is further opened, clean gas is discharged through the water filter of the air outlet cylinder 612 through the rotation of the impeller 607, then, the first solenoid valve 501 is opened, and the cycle operation is started.

The beneficial technical effects related to the implementation of the embodiment are as follows:

because mist sprayer 609, water sprayer 610, blender 6, the setting of agitator and waste water processor 23 for partial dust and droplet combine to fall down, further water sprayer 610 sprays water and makes and deposits suitable amount of water in the blender 6, further work through stirring body 608, make dust and rivers intensive mixing, combine completely, whole dust removal process adopts wet dedusting, the environmental protection is pollution-free, and can reach better dust removal effect, and waste water can cyclic utilization after handling, green.

Example 2:

referring to fig. 7 to 13, in addition to embodiment 1, the present invention provides another wastewater treatment apparatus including:

the device comprises a first box body 12, a second box body 7 and a third box body 13, wherein the first box body 12 and the third box body 13 are fixedly connected with the outside, a first annular sliding groove 1201 is formed on the first box body 12, a second sliding groove 1202 is formed on the first annular sliding groove 1201, a first sliding block 702 and a second handle 701 are arranged on the second box body 7, a second annular groove 1305 is arranged on the upper surface of the third box body 13, a water level sensing device is arranged on the inner side surface of the second box body 7, a third annular groove 1301 is arranged on the side surface of the third box body, a second sliding block 1302 is arranged in the third annular groove 1301, an anti-collision device is arranged at the starting position of the second sliding block 1302, the anti-collision device comprises a fixer 1303 and a protection plate 1304, the fixer 1303 is fixedly arranged on the side surface of the third annular groove 1301, and the protection plate 1304 is rotatably connected with the fixer 1303, the second sliding block 1302 is made of a magnet, the third annular groove 1301 is made of an aluminum alloy, the third box 13 is provided with a mounting block 1306 on the inner side, the second filter 14 is mounted on the mounting block 1306, the second filter 14 comprises a fixed plate 16, a rotating plate 17, a cleaning plate 19 and a collector 18, brushes 22 are arranged on the lower surfaces of the rotating plate 17 and the cleaning plate 19, the fixed plate 16 is fixedly connected with the mounting block 1306, a fourth annular groove 1601 is arranged on the fixed plate 16, a third sliding block 1701 and a fourth sliding block 20 are respectively arranged on the rotating plate 17 and the cleaning plate 19, the third sliding block 1701 and the fourth sliding block 20 are rotatably connected with the fourth annular groove 1601, the rotating plate 17 is relatively fixedly connected with the cleaning plate 19, and an arc-shaped opening is arranged on the fixed plate 16, the collector 18 is fixedly connected below the arc-shaped opening, the fourth sliding block 20 is made of a magnet material, and the fourth sliding block 20 and the second sliding block 1302 are located on the same radius.

Due to the arrangement of the first annular chute 1201, the second chute 1202, the first slider 702, the second handle 701 and the second annular groove 1305, the second box 7 can be pushed upwards, so that the second filter 14 in the wastewater treatment device is convenient to install, take out and replace, due to the arrangement of the fixed plate 16, the rotating plate 17, the cleaning plate 19, the brush 22 and the collector 18 in the second filter 14, when the second filter 14 is clogged, the brushes 22 brush the dirt blocked on the fixed plate 16 through the rotation of the cleaning plate 19 and the rotating plate 17, the brushed dirt is further discharged into the collector 18 through the rotation of the cleaning plate 19 and the rotating plate 17 for temporary storage, due to the fact that the third annular groove 1301, the second sliding block 1302 and the fourth sliding block 20 are arranged, materials of the circumference where the third annular groove 1301 is located are all aluminum alloy, and the third annular groove is not magnetic, and therefore manual work can be effectively achieved to achieve the work of clearing blockage from external operation.

The working principle of the embodiment is as follows:

when the second filter 14 is blocked, sewage in the dust treatment device is continuously discharged, therefore, the water level in the sewage treatment device can rise, at the moment, the water level sensing device detects that the water level rises to send an alarm, the protection plate 1304 is manually opened, the second sliding block 1302 is further rotated to drive the fourth sliding block 20 to rotate, the rotating plate 17 and the cleaning plate 19 are rotated, meanwhile, the brushes 22 on the lower surfaces of the rotating plate 17 and the cleaning plate 19 clean dirt on the upper surface of the fixed plate 16, and along with the rotation of the rotating plate 17 and the cleaning plate 19, the cleaned dirt is pushed into the collector 18, so that the problem that the second filter 14 is blocked can be emergently treated, the normal operation of the whole air purification device is realized, and the stable working efficiency is ensured.

because the first annular chute 1201, the second chute 1202, the first slider 702, the second handle 701 and the second annular groove 1305 are arranged, the second box body 7 can be pushed away upwards, so that the second filter 14 in the wastewater treatment device is convenient to install, take out and replace, meanwhile, the second filter 14 is convenient to clean regularly, the service life of the second filter 14 is prolonged, due to the arrangement of the fixing plate 16, the rotating plate 17, the cleaning plate 19 and the brush 22, the problem that the second filter 14 is blocked can be emergently treated, the second filter 14 is environment-friendly and durable, and the normal operation of the dedusting work of the whole device is guaranteed.

Example 3:

referring to fig. 14, in addition to embodiment 2, the other structure is not changed, and the present invention further includes:

a seventh pipeline 401 is arranged on the side surface of the air storage tank 4, the seventh pipeline 401 is inclined upwards, a pressure valve is arranged in the seventh pipeline 401, and an elastic air bag 402 is hermetically arranged at the tail end of the seventh pipeline 401.

Due to the arrangement of the seventh pipeline 401, the pressure valve and the elastic airbag 402, when the first electromagnetic valve 501 in the second pipeline 5 is closed and the flow of the dust-containing gas sucked by the fan 201 is suddenly increased, and the pressure in the gas storage tank 4 is increased to a certain value, the pressure valve in the seventh pipeline 401 is opened, and the gas enters the elastic airbag 402, so that a temporary buffering effect is realized.

The working principle of the embodiment is as follows:

the first electromagnetic valve 501 in the second pipeline 5 is closed, when the flow of the sucked dust-containing gas of the fan 201 is suddenly increased, the pressure in the gas storage tank 4 is continuously increased, when the pressure is increased to a certain value, the pressure valve in the seventh pipeline 401 is opened, the gas enters the elastic airbag 402 to realize temporary buffer action, after the normal work is recovered, the gas in the elastic airbag 402 is discharged, meanwhile, the dust in the elastic airbag 402 slides out from the inclined seventh pipeline 401, and the pressure valve is closed.

because the setting of elasticity gasbag 402 for the effect of a buffering is realized to gas holder 4 under the condition of internal pressure increase suddenly, realizes gas holder 4's normal operating, guarantees air purification device's normal operating, can keep comparatively stable work efficiency.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides an air purification device based on dust of polishing which characterized in that: comprises a flaring (1), a first pipeline (2), a gas storage tank (4), a second pipeline (5), a dust treatment device, a wastewater processor (23) and a water tank (9), wherein the flaring (1) is communicated with the gas storage tank (4) through the first pipeline (2), the upper surface of the gas storage tank (4) is communicated with six second pipelines (5), the other ends of the six second pipelines (5) are respectively communicated with the dust treatment device, a third pipeline (11) is connected below the dust treatment device, a fourth electromagnetic valve is arranged in the third pipeline (11), the wastewater processor (23) is connected below the third pipeline (11), the wastewater processor (23) is communicated with the water tank (9) through a fourth pipeline (8), a water inlet pipe (901) is arranged in the water tank (9), and a water pump (15) is arranged at the bottom of the water tank (9), and a fifth pipeline (10) is installed on the water pump (15), and the fifth pipeline (10) is connected with the dust treatment device.

2. The sanding dust based air cleaning device as defined in claim 1, wherein: the utility model discloses a dust collector, including first pipeline (2), collection box (3), fan (201) are provided with in the front end of first pipeline (2), the inside dust collecting device that is provided with of middle-end of first pipeline (2), dust collecting device includes first filter screen (202), collection hole (203), collecting box (3), collection hole (203) are for leaking hopper-shaped, be provided with switch door (301) in collecting box (3), be provided with first in command (302) on switch door (301).

3. The sanding dust based air cleaning device as defined in claim 1, wherein: a first electromagnetic valve (501) is arranged in the second pipeline (5), and the tail end of an air outlet of the second pipeline (5) is arched.

4. The sanding dust based air cleaning device as defined in claim 1, wherein: the dust treatment device comprises a mixer (6), an agitator and a spraying device, wherein a first hole (613), a second hole (611), a third hole (616), an air outlet cylinder (612) and a current collecting plate (614) are arranged in the mixer, the second pipeline (5) is installed on the first hole (613), the spraying device is installed in a sealing manner through the second hole (611), the spraying device comprises a mist sprayer (609), a water sprayer (610), a branch pipeline (601), a sixth pipeline (602) and a joint (604), the upper surface of the joint (604) is installed in a sealing manner with the fifth pipeline (10), the side surface of the joint (604) is installed with six sixth pipelines (602) in a sealing manner, the sixth pipeline (602) is communicated with the branch pipeline (601), the water sprayer (610) is installed at the tail end of the sixth pipeline (602), and the mist sprayer (609) is installed at the tail end of the branch pipeline (601), the water sprayer (610) and the mist sprayer (609) are funnel-shaped, the mist sprayer (609) is located below the water sprayer (610), the third hole (616) is hermetically mounted with the third pipeline (11), the air outlet cylinder (612) is arranged on the upper surface of the mixer (6), a fifth electromagnetic valve is arranged inside the air outlet cylinder (612), a water filter is arranged inside the air outlet cylinder (612), the fifth electromagnetic valve is located below the water filter, the stirrer comprises a first shaft (606) and a motor (605), the first shaft (606) penetrates through the bottom of the mixer (6) and the flow collecting plate (614) and is hermetically mounted with the flow collecting plate, an impeller (607) and a stirring body (608) are arranged on the first shaft (606), the stirring body (608) is in a horn spiral shape, and the lower end of the first shaft (606) is mounted and connected with the motor (605), the motor (605) is fixedly connected with the outside.

5. The sanding dust based air cleaning device as defined in claim 4, wherein: a second electromagnetic valve is arranged on the sixth pipeline (602), the second electromagnetic valve is positioned below the joint of the sixth pipeline (602) and the branch pipeline (601), and a third electromagnetic valve is arranged on the branch pipeline (601).

6. The sanding dust based air cleaning device as defined in claim 1, wherein: the wastewater processor (23) is provided with a first filter (24).

7. The sanding dust based air cleaning device as defined in claim 1, wherein: a one-way valve is arranged in the fourth pipeline (8).

8. The sanding dust based air cleaning device as defined in claim 6, wherein: the wastewater treatment device comprises a first box body (12), a second box body (7) and a third box body (13), wherein the first box body (12) and the third box body (13) are fixedly connected with the outside, a first annular sliding chute (1201) is formed on the first box body (12), a second sliding chute (1202) is formed on the first annular sliding chute (1201), a first sliding block (702) and a second handle (701) are arranged on the second box body (7), a water level sensing device is arranged on the inner side surface of the second box body (7), a second annular groove (1305) is arranged on the upper surface of the third box body (13), a third annular groove (1301) is arranged on the side surface of the third box body, a second sliding block (1302) is arranged in the third annular groove (1301), an anti-collision device is arranged at the starting position of the second sliding block (1302), and comprises a fixer (1303) and a protection plate (1302), the fixer (1303) is fixedly installed on the side face of the third annular groove (1301), the protection plate (1304) is rotatably connected with the fixer (1303), the second sliding block (1302) is made of a magnet, the third annular groove (1301) is made of aluminum alloy, an installation block (1306) is arranged on the inner side face of the third box body (13), a second filter (14) is installed on the installation block (1306), the second filter (14) comprises a fixed plate (16), a rotating plate (17), a cleaning plate (19) and a collector (18), brushes (22) are arranged on the lower surfaces of the rotating plate (17) and the cleaning plate (19), the fixed plate (16) is fixedly connected with the installation block (1306), a fourth annular groove (1601) is arranged on the fixed plate (16), and a third sliding block (1701) and a fourth sliding block (20) are respectively arranged on the rotating plate (17) and the cleaning plate (19), the third sliding block (1701) and the fourth sliding block (20) are rotatably connected with the fourth annular groove (1601), the rotating plate (17) is fixedly connected with the cleaning plate (19) relatively, an arc-shaped opening is formed in the fixing plate (16), the collector (18) is fixedly connected below the arc-shaped opening, and the fourth sliding block (20) is made of a magnet material.

9. The sanding dust based air cleaning device as defined in claim 1, wherein: a seventh pipeline (401) is arranged on the side face of the air storage tank (4), the seventh pipeline (401) inclines upwards, a pressure valve is arranged in the seventh pipeline (401), and an elastic air bag (402) is installed at the tail end of the seventh pipeline (401) in a sealing mode.