CN112495097A - High-pressure spraying device for air purification - Google Patents
High-pressure spraying device for air purification Download PDFInfo
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- CN112495097A CN112495097A CN202011360969.1A CN202011360969A CN112495097A CN 112495097 A CN112495097 A CN 112495097A CN 202011360969 A CN202011360969 A CN 202011360969A CN 112495097 A CN112495097 A CN 112495097A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
- B01D47/08—Spray cleaning with rotary nozzles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2247/00—Details relating to the separation of dispersed particles from gases, air or vapours by liquid as separating agent
- B01D2247/12—Fan arrangements for providing forced draft
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Abstract
The invention discloses a high-pressure spraying device for air purification, which comprises a device box, wherein a high-pressure plunger pump, a motor and a water tank are arranged in the device box, the motor is in driving connection with the high-pressure plunger pump, the high-pressure plunger pump is communicated with the water tank through a first conduit, a first belt pulley is coaxially and fixedly connected to an output shaft of the motor, a first exhaust port is formed in the side wall of the device box, a dust suction mechanism is fixedly connected to the outer side of the device box, a hollow partition plate is fixedly connected to the inner side of the device box, the high-pressure plunger pump and the motor are both fixedly arranged at the upper end of the partition plate, the water tank is fixedly arranged between the partition plate and the bottom of the device box, an absorption box is fixedly connected between the partition plate. The invention not only can effectively improve the effect of dust absorption treatment, but also can improve the spraying range through the driving of the motor, thereby being beneficial to dust absorption.
Description
Technical Field
The invention relates to the technical field of air purification equipment, in particular to a high-pressure spraying device for air purification.
Background
The spraying machine is caused by natural phenomena such as water vapor, cloud and fog, and can be used for generating an environment at any time and any place, the water fog can absorb a large amount of heat in the air, and through scientific statistics, every kilogram of water is used for exciting artificial fog in a floating state, and the obtained effect is equal to dissolving seven kilograms of ice. The water is changed into gas state from liquid state, so that the space temperature is increased, and the aim of reducing the air temperature is achieved.
At present, when dust in the air is absorbed by using a high-pressure spraying device and water mist falls from a high place, the water mist is firstly contacted with the dust in the air of an upper layer for adsorption effect on the dust when the water mist moves to the air of a lower layer is poor, in addition, the spraying direction range of the existing water mist spraying component is small, and therefore the high-pressure spraying device for air purification is provided.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a high-pressure spraying device for air purification.
In order to achieve the purpose, the invention adopts the following technical scheme:
a high-pressure spraying device for air purification comprises a device box, wherein a high-pressure plunger pump, a motor and a water tank are arranged in the device box, the motor is in driving connection with the high-pressure plunger pump, the high-pressure plunger pump is communicated with the water tank through a first guide pipe, a first belt pulley is coaxially and fixedly connected onto an output shaft of the motor, a first exhaust port is formed in the side wall of the device box, a dust suction mechanism is fixedly connected onto the outer side of the device box, a hollow partition plate is fixedly connected into the device box, the high-pressure plunger pump and the motor are fixedly arranged at the upper end of the partition plate, the water tank is fixedly arranged between the partition plate and the bottom of the device box, an absorption box is fixedly connected between the partition plate and the bottom of the device box, an absorption mechanism is arranged in the absorption box and is communicated with the water tank, and a second exhaust port communicated with, the side wall of the absorption box is communicated with a drain pipe, the drain pipe penetrates through the side wall of the device box and extends to the outside of the device box, the top surface of the absorption box is communicated with an air suction mechanism, the air suction mechanism penetrates through the partition plate and is communicated with a dust suction mechanism, a first transmission mechanism is arranged in the device box, the first belt pulley is in transmission connection with the first transmission mechanism, the first transmission mechanism is in transmission connection with the air suction mechanism, the upper end of the device box is provided with a second transmission mechanism, the lower end of the second transmission mechanism penetrates through the top surface of the device box and is in transmission connection with the first transmission mechanism, the upper end of the device box is fixedly connected with a third transmission mechanism, the third transmission mechanism is in transmission connection with the second transmission mechanism, the upper end of the device box is fixedly connected with a rotating mechanism, the rotating mechanism is in transmission connection with the third transmission mechanism, and the side wall of, and a second guide pipe is communicated between the spray head and the high-pressure plunger pump.
Preferably, the dust collection mechanism comprises a U-shaped dust collection box fixedly arranged on the side wall of the device box, a filter screen plate matched with the dust collection box is fixedly connected in the dust collection box, a plurality of air inlets are formed in the side wall of the dust collection box, and the dust collection box is communicated with the air suction mechanism.
Preferably, the absorption mechanism comprises a plurality of cavities arranged in the side wall of the absorption box, the side wall of each cavity is provided with a water spray opening communicated with the absorption box, the side wall of each cavity is provided with a first water guide pipe in a communicated mode, the first water guide pipes are communicated with one second water guide pipe, the second water guide pipes are communicated with a water pump, and a third water guide pipe is communicated between the water pump and the water tank.
Preferably, the air suction mechanism comprises an air suction pipe communicated with and arranged at the upper end of the absorption box, an air guide pipe is communicated between the air suction pipe and the dust suction box, a first rotating shaft penetrates through the top surface of the air suction pipe in a rotating mode, a fan blade is coaxially and fixedly connected to the first rotating shaft below the air guide pipe, a first bevel gear is fixedly connected to the upper end of the first rotating shaft, and the first bevel gear is in transmission connection with the first transmission mechanism.
Preferably, the first transmission mechanism comprises a second rotating shaft rotatably arranged in the device box, a second belt pulley, a second bevel gear and an incomplete gear are coaxially and fixedly connected to the second rotating shaft, the second belt pulley is in transmission connection with the first belt pulley, the second bevel gear is meshed with the first bevel gear, and the incomplete gear is in transmission connection with the second transmission mechanism.
Preferably, the second drive mechanism includes the rack that slides and runs through the setting of device case top surface, incomplete gear and third drive mechanism all with rack toothing, the upper end fixedly connected with horizontal plate of rack, fixedly connected with telescopic link between the upper end of horizontal plate and device case, the cover is equipped with the spring on the telescopic link, the both ends of spring respectively with the upper end fixed connection of horizontal plate and device case.
Preferably, the third transmission mechanism comprises a supporting plate fixedly arranged at the upper end of the device box, a worm is arranged on the supporting plate in a rotating penetrating mode, a complete gear is coaxially and fixedly connected onto the worm, the complete gear is meshed with the rack, and the worm is meshed with the rotating mechanism.
Preferably, the rotating mechanism comprises a third rotating shaft rotatably arranged at the upper end of the device box, the spray head is fixedly arranged on the side wall of the third rotating shaft, a worm wheel and an annular disc are coaxially and fixedly connected to the third rotating shaft, and the worm wheel is meshed with the worm.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, through the arrangement of the dust absorption mechanism, the air suction mechanism and the absorption mechanism, the air around the spraying device can be sucked into the absorption box, and the water mist sprayed by the absorption mechanism absorbs the dust in the air, so that the dust in the air at the lower layer can be absorbed and purified, and the dust absorption and purification effects of the spraying device on the dust in the air can be effectively improved.
2. In the invention, the spray head can rotate within 180 degrees through the motor, the first transmission mechanism, the second transmission mechanism, the third transmission mechanism and the rotating mechanism, so that the spraying range of water mist can be effectively expanded, in addition, when the air purified by the absorption mechanism is discharged through the first exhaust port on the side wall of the device box, the air fluidity of the device box can be improved, the motor is convenient to cool, and the service life of the driving motor is favorably prolonged.
Drawings
Fig. 1 is a perspective view of a high pressure spraying apparatus for air purification according to the present invention;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
FIG. 3 is a schematic top view of a dust box of a high pressure spraying device for air purification according to the present invention;
fig. 4 is a connection diagram of a incomplete gear and a rack in the high-pressure spraying device for air purification according to the present invention.
In the figure: 1 device box, 2 high-pressure plunger pumps, 3 motors, 4 first guide pipes, 5 first belt pulleys, 6 first exhaust ports, 7 partition plates, 8 water tanks, 9 absorption tanks, 10 water discharge pipes, 11 spray heads, 12 second guide pipes, 13 dust absorption tanks, 14 filter screen plates, 15 air inlets, 16 chambers, 17 water spray ports, 18 first water guide pipes, 19 second water guide pipes, 20 water pumps, 21 third water guide pipes, 22 air suction pipes, 23 air guide pipes, 24 first rotating shafts, 25 fan blades, 26 first bevel gears, 27 second rotating shafts, 28 second belt pulleys, 29 second bevel gears, 30 incomplete gears, 31 racks, 32 horizontal plates, 33 telescopic rods, 34 springs, 35 supporting plates, 36 worms, 37 complete gears, 38 third rotating shafts, 39 worm gears, 40 annular discs and 41 second exhaust ports.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-4, a high pressure spraying device for air purification, comprising a device box 1, a high pressure plunger pump 2, a motor 3 and a water tank 8 are arranged in the device box 1, the motor 3 is connected with the high pressure plunger pump 2 in a driving manner, the high pressure plunger pump 2 is communicated with the water tank 8 through a first conduit 4, wherein the side walls of the device box 1 and the water tank 8 are respectively provided with a water inlet, the two communicated water inlets are convenient for supplying water to the water tank 8, in addition, the lower end of the device box 1 is provided with a roller (not shown in the figure) for moving the spraying device, a first belt pulley 5 is coaxially and fixedly connected with an output shaft of the motor 3, the side wall of the device box 1 is provided with a first exhaust port 6, the outer side of the device box 1 is fixedly connected with a dust collection mechanism, a hollow partition 7 is fixedly connected in the device box 1, and the, the water tank 8 is fixedly arranged between the partition plate 7 and the bottom of the device box 1, the absorption box 9 is fixedly connected between the partition plate 7 and the bottom of the device box 1, an absorption mechanism is arranged in the absorption box 9 and is communicated with the water tank 8, a second exhaust port 41 communicated with the device box 1 is arranged on the side wall of the absorption box 9, a drain pipe 10 is communicated with the side wall of the absorption box 9 and penetrates through the side wall of the device box 1 and extends to the outside, wherein a control valve is arranged on the drain pipe 10 and is convenient for controlling the discharge of absorbed sewage, an air suction mechanism is communicated with the top surface of the absorption box 9 and penetrates through the partition plate 7 and is communicated with a dust collection mechanism, a first transmission mechanism is arranged in the device box 1, a first belt pulley 5 is in transmission connection with the first transmission mechanism, the air suction mechanism of the first transmission mechanism is in transmission connection, and a second transmission mechanism is arranged at, the lower end of the second transmission mechanism penetrates through the top surface of the device box 1 and is in transmission connection with the first transmission mechanism, the upper end of the device box 1 is fixedly connected with a third transmission mechanism, the third transmission mechanism is in transmission connection with the second transmission mechanism, the upper end of the device box 1 is fixedly connected with a rotating mechanism, the rotating mechanism is in transmission connection with the third transmission mechanism, a spray head 11 is fixedly installed on the side wall of the rotating mechanism, and a second guide pipe 12 is communicated between the spray head 11 and the high-pressure plunger pump 2.
Wherein, dust absorption mechanism is including the dust absorption case 13 of the U type of fixed setting on device case 1 lateral wall, fixedly connected with it assorted filter plate 14 in the dust absorption case 13, is equipped with a plurality of air inlets 15 on the lateral wall of dust absorption case 13, and dust absorption case 9 sets up with the mechanism intercommunication of breathing in, and it needs to explain, is equipped with the clearance mouth on the lateral wall of dust absorption case 13, packs in the clearance mouth and has filled the closing plate (clearance mouth and closing plate are all not shown in the drawing).
Wherein, the absorbing mechanism is including setting up a plurality of cavities 16 in the lateral wall of absorption box 9, be equipped with the water jet 17 that is linked together with absorption box 9 on the lateral wall of cavity 16, all communicate on the lateral wall of cavity 16 and be equipped with first aqueduct 18, many first aqueduct 18 intercommunication are equipped with same root second aqueduct 19, second aqueduct 19 intercommunication is equipped with water pump 20, the intercommunication is equipped with third aqueduct 21 between water pump 20 and the water tank 8, it needs to explain, a plurality of water jet 17 set up in turn, be convenient for adsorb the dust in the air.
The air suction mechanism comprises an air suction pipe 22 which is communicated with the upper end of the absorption box 9, an air guide pipe 23 is communicated between the air suction pipe 22 and the dust suction box 13, a first rotating shaft 24 penetrates through the top surface of the air suction pipe 22 in a rotating mode, a fan blade 25 is coaxially and fixedly connected onto the first rotating shaft 24 below the air guide pipe 23, a first bevel gear 26 is fixedly connected onto the upper end of the first rotating shaft 24, and the first bevel gear 26 is in transmission connection with a first transmission mechanism.
The first transmission mechanism comprises a second rotating shaft 27 which is rotatably arranged in the device box 1, a second belt pulley 28, a second bevel gear 29 and an incomplete gear 30 are coaxially and fixedly connected to the second rotating shaft 27, the second belt pulley 28 is in transmission connection with the first belt pulley 5 through a belt, the second bevel gear 29 is meshed with the first bevel gear 26, and the incomplete gear 30 is in transmission connection with the second transmission mechanism.
More specifically, the second drive mechanism includes rack 31 that slides and runs through the setting of device case 1 top surface, and incomplete gear 30 and third drive mechanism all mesh with rack 31, and the upper end fixedly connected with horizontal plate 32 of rack 31, fixedly connected with telescopic link 33 between the upper end of horizontal plate 32 and device case 1, the cover is equipped with spring 34 on telescopic link 33, the both ends of spring 34 respectively with the upper end fixed connection of horizontal plate 32 and device case 1.
The third transmission mechanism comprises a support plate 35 fixedly arranged at the upper end of the device box 1, a worm 36 is rotatably arranged on the support plate 35 in a penetrating mode, a complete gear 37 is coaxially and fixedly connected onto the worm 36, the complete gear 37 is meshed with the rack 31, and the worm 36 is meshed with the rotating mechanism.
The rotating mechanism comprises a third rotating shaft 38 rotatably arranged at the upper end of the device box 1, the spray head 11 is fixedly arranged on the side wall of the third rotating shaft 38, a worm wheel 39 and an annular disc 40 are coaxially and fixedly connected to the third rotating shaft 38, the worm wheel 39 is meshed with the worm 36, it should be noted that the annular disc 40 is positioned above the worm wheel 39, and the second conduit 12 is a corrugated pipe to prevent the second conduit 12 from contacting with the worm wheel 39 or the worm 36 when the third rotating shaft 38 rotates.
In the invention, the device can be slowly pushed to move when in use, in the process, the motor 3 is started to enable the high-pressure plunger pump 2 to work to spray water mist through the spray head 11, meanwhile, the first belt pulley 5 and the second belt pulley 28 are in transmission connection to drive the second rotating shaft 27, the second bevel gear 29 and the incomplete gear 30 to synchronously rotate, the first bevel gear 26 and the second bevel gear 29 are meshed to enable the first rotating shaft 24 and the fan blade 25 to rapidly rotate, so that air around the device can be absorbed, namely low-layer air enters the air suction pipe 22 through the air inlet 15, the filter screen plate 14 and the air guide pipe 23 in sequence and then is discharged through the second air outlet 41 on the side wall of the absorption box 9 and the first air outlet 6 on the side wall of the device box 1, in the process, the water pump 20 is started to work to pump water in the water tank 8 into the chamber 16 and is sprayed out through the water spraying port 17, form multichannel water smoke curtain from top to bottom at absorption box 9 and from the top to the direction, be convenient for adsorb the dust in the air after filtering, in addition, when incomplete gear 30 and rack 31 mesh, incomplete gear 30 can drive rack 31 and move in vertical direction, rack 31's motion can drive complete gear 37 and worm 36 and rotate, because worm 36 and worm wheel 39 mesh, can drive third rotation axis 38 and drive shower nozzle 11 and rotate, can expand the range of spraying when slowing down, on the contrary, when incomplete gear 30 and rack 31 separate, under the effect of spring 34, rack 31 does the motion that resets, can know from the above-mentioned expression with the same reason, shower nozzle 11 antiport, can realize then in the spraying process, shower nozzle 11 reciprocating rotation sprays.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. The high-pressure spraying device for air purification comprises a device box (1), wherein a high-pressure plunger pump (2), a motor (3) and a water tank (8) are arranged in the device box (1), the motor (3) is in driving connection with the high-pressure plunger pump (2), the high-pressure plunger pump (2) is communicated with the water tank (8) through a first guide pipe (4), the high-pressure spraying device is characterized in that a first belt pulley (5) is coaxially and fixedly connected onto an output shaft of the motor (3), a first exhaust port (6) is arranged on the side wall of the device box (1), a dust suction mechanism is fixedly connected onto the outer side of the device box (1), a hollowed-out partition plate (7) is fixedly connected into the device box (1), the high-pressure plunger pump (2) and the motor (3) are fixedly arranged at the upper end of the partition plate (7), and the water tank (8) is fixedly arranged between the partition plate (7) and the bottom of the, an absorption box (9) is fixedly connected between the bottom of the partition plate (7) and the bottom of the device box (1), an absorption mechanism is arranged in the absorption box (9), the absorption mechanism is communicated with a water tank (8), a second exhaust port (41) communicated with the device box (1) is arranged on the side wall of the absorption box (9), a drain pipe (10) is communicated with the side wall of the absorption box (9), the drain pipe (10) penetrates through the side wall of the device box (1) and extends to the outside of the device box, an air suction mechanism is communicated with the top surface of the absorption box (9), the air suction mechanism penetrates through the partition plate (7) and is communicated with a dust collection mechanism, a first transmission mechanism is arranged in the device box (1), a first belt pulley (5) is in transmission connection with the first transmission mechanism, the first transmission mechanism is in transmission connection with the air suction mechanism, a second transmission mechanism is arranged at the upper end of the device box (1), the lower extreme of second drive mechanism passes the top surface of device case (1) and is connected with the transmission of first drive mechanism, the upper end fixedly connected with third drive mechanism of device case (1), third drive mechanism is connected with the transmission of second drive mechanism, the upper end fixedly connected with rotary mechanism of device case (1), rotary mechanism is connected with the transmission of third drive mechanism, fixed mounting has shower nozzle (11) on rotary mechanism's the lateral wall, the intercommunication is provided with second pipe (12) between shower nozzle (11) and high pressure plunger pump (2).
2. The high-pressure spraying device for air purification according to claim 1, wherein the dust collection mechanism comprises a U-shaped dust collection box (13) fixedly arranged on the side wall of the device box (1), a filter screen plate (14) matched with the dust collection box (13) is fixedly connected in the dust collection box (13), a plurality of air inlets (15) are arranged on the side wall of the dust collection box (13), and the dust collection box (9) is communicated with the dust collection mechanism.
3. The high-pressure spraying device for air purification according to claim 3, wherein the absorption mechanism comprises a plurality of chambers (16) arranged in the side wall of the absorption box (9), the side wall of each chamber (16) is provided with a water spray opening (17) communicated with the absorption box (9), the side wall of each chamber (16) is provided with a first water guide pipe (18) in a communicated manner, the first water guide pipes (18) are provided with a same second water guide pipe (19) in a communicated manner, the second water guide pipes (19) are provided with a water pump (20) in a communicated manner, and a third water guide pipe (21) is arranged between the water pump (20) and the water tank (8) in a communicated manner.
4. The high-pressure spraying device for air purification according to claim 3, wherein the air suction mechanism comprises an air suction pipe (22) which is communicated with and arranged at the upper end of the absorption box (9), an air guide pipe (23) is communicated between the air suction pipe (22) and the dust suction box (13), a first rotating shaft (24) is rotatably arranged on the top surface of the air suction pipe (22) in a penetrating manner, fan blades (25) are coaxially and fixedly connected to the first rotating shaft (24) below the air guide pipe (23), a first bevel gear (26) is fixedly connected to the upper end of the first rotating shaft (24), and the first bevel gear (26) is in transmission connection with the first transmission mechanism.
5. The high-pressure spraying device for air purification according to claim 4, wherein the first transmission mechanism comprises a second rotating shaft (27) rotatably disposed in the device box (1), a second pulley (28), a second bevel gear (29) and an incomplete gear (30) are coaxially and fixedly connected to the second rotating shaft (27), the second pulley (28) is in transmission connection with the first pulley (5), the second bevel gear (29) is engaged with the first bevel gear (26), and the incomplete gear (30) is in transmission connection with the second transmission mechanism.
6. The high-pressure spraying device for air purification according to claim 5, wherein the second transmission mechanism comprises a rack (31) slidably penetrating the top surface of the device box (1), the incomplete gear (30) and the third transmission mechanism are both meshed with the rack (31), a horizontal plate (32) is fixedly connected to the upper end of the rack (31), an expansion link (33) is fixedly connected between the horizontal plate (32) and the upper end of the device box (1), a spring (34) is sleeved on the expansion link (33), and two ends of the spring (34) are respectively fixedly connected with the horizontal plate (32) and the upper end of the device box (1).
7. The high-pressure spraying device for air purification according to claim 6, wherein the third transmission mechanism comprises a support plate (35) fixedly arranged at the upper end of the device box (1), a worm (36) is rotatably arranged on the support plate (35) in a penetrating manner, a complete gear (37) is coaxially and fixedly connected to the worm (36), the complete gear (37) is meshed with the rack (31), and the worm (36) is meshed with the rotating mechanism.
8. The high-pressure sprayer device for air purification according to claim 7, wherein the rotating mechanism comprises a third rotating shaft (38) rotatably arranged at the upper end of the device box (1), the spray head (11) is fixedly arranged on the side wall of the third rotating shaft (38), a worm wheel (39) and an annular disc (40) are coaxially and fixedly connected to the third rotating shaft (38), and the worm wheel (39) is meshed with the worm (36).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011360969.1A CN112495097A (en) | 2020-11-28 | 2020-11-28 | High-pressure spraying device for air purification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011360969.1A CN112495097A (en) | 2020-11-28 | 2020-11-28 | High-pressure spraying device for air purification |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112495097A true CN112495097A (en) | 2021-03-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011360969.1A Pending CN112495097A (en) | 2020-11-28 | 2020-11-28 | High-pressure spraying device for air purification |
Country Status (1)
| Country | Link |
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| CN (1) | CN112495097A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114288813A (en) * | 2021-12-15 | 2022-04-08 | 赖绍波 | Mine air purification wind pressure device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114288813A (en) * | 2021-12-15 | 2022-04-08 | 赖绍波 | Mine air purification wind pressure device |
| CN114288813B (en) * | 2021-12-15 | 2023-10-10 | 济南沃尔菲斯科技有限公司 | Mine air purification wind pressure device |
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