CN109468990A - A kind of building cooling dust-extraction unit - Google Patents
A kind of building cooling dust-extraction unit Download PDFInfo
- Publication number
- CN109468990A CN109468990A CN201811318179.XA CN201811318179A CN109468990A CN 109468990 A CN109468990 A CN 109468990A CN 201811318179 A CN201811318179 A CN 201811318179A CN 109468990 A CN109468990 A CN 109468990A
- Authority
- CN
- China
- Prior art keywords
- water
- storage cistern
- water storage
- cold water
- extraction unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 25
- 238000000605 extraction Methods 0.000 title claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 110
- 238000005367 electrostatic precipitation Methods 0.000 claims abstract description 26
- 239000007921 spray Substances 0.000 claims abstract description 24
- 239000003651 drinking water Substances 0.000 claims abstract description 14
- 235000020188 drinking water Nutrition 0.000 claims abstract description 14
- 238000004140 cleaning Methods 0.000 claims abstract description 12
- 238000005406 washing Methods 0.000 claims abstract description 12
- 239000004065 semiconductor Substances 0.000 claims description 10
- 238000005086 pumping Methods 0.000 claims description 2
- 239000000428 dust Substances 0.000 abstract description 8
- 239000011435 rock Substances 0.000 abstract description 6
- 238000010276 construction Methods 0.000 description 5
- 239000003595 mist Substances 0.000 description 3
- 238000001914 filtration Methods 0.000 description 2
- 206010019345 Heat stroke Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H3/00—Applying liquids to roads or like surfaces, e.g. for dust control; Stationary flushing devices
- E01H3/02—Mobile apparatus, e.g. watering-vehicles
Abstract
The present invention relates to a kind of building cooling dust-extraction units, including body, lateral partitions are equipped in the body, filter chamber is equipped with above the lateral partitions, electrostatic precipitation chamber and water washing cleaning chamber, the filter chamber side is communicated with exhaust tube, aspiration pump is installed on the exhaust tube, the first strainer is vertically connected in the filter chamber, the electrostatic precipitation is intracavitary to be equipped with two blocks of electrostatic precipitation plates, cold water storage cistern is equipped at the top of the body, the first water pump is equipped at the top of the cold water storage cistern, first water pump bottom connects the first drinking-water pipe, described first draws water bottom of the tube through the cold water storage cistern and extends to bottom in cold water storage cistern, first water pump side is connected with the first sparge pipe, the first water spray bottom of the tube, which runs through the body and extends to, is connected with fog-spray nozzle in body, the present invention can remove the dust in air, and adjustable water spray Head rocks from side to side the angle of water spray, so as to change the area coverage of water spray, to be adapted to the demand of different Environment Inside the Buildings.
Description
Technical field
The present invention relates to a kind of building cooling dust-extraction units, belong to Architectural Equipment technical field.
Background technique
Currently, work surface is exposed under burning sun more, torridity summer, operation side when architectural engineering main structure construction
Temperature is very high, even more than 40 DEG C, construction is caused to have to the high-temperature time section that is staggered, nonetheless, because of high temperature when construction operation
The problems such as causing worker's heatstroke to fall in a swoon also happens occasionally, while when carrying out construction, can generate a large amount of dust, and work people
Member if things go on like this, can cause huge damage to the health of operating personnel in dust-laden particle or harmful substance suction body, because
This, needs to be dusted construction environment and cooling is handled, and improves working environment.
Summary of the invention
The present invention proposes a kind of building cooling dust-extraction unit, can effectively remove the dust in air, and for building
When inside carrying out watering cooling, adjustable fountain head rocks from side to side the angle of water spray, so as to change the area coverage of water spray,
To be adapted to the demand of different Environment Inside the Buildings.
In order to solve the above-mentioned technical problems, the present invention provides the following technical solutions:
A kind of building cooling dust-extraction unit of the present invention, including body, are equipped with lateral partitions in the body, in the lateral partitions
Side is from left to right successively arranged filter chamber, electrostatic precipitation chamber and water washing cleaning chamber, is communicated with exhaust tube on the left of the filter chamber, institute
It states and aspiration pump is installed on exhaust tube, the aspiration pump bottom is fixedly connected with the fixing seat that the left side of machine body is equipped with, described
The first strainer is vertically connected in filter chamber, the electrostatic precipitation is intracavitary to be equipped with two blocks of electrostatic precipitation plates, sets at the top of the body
There is cold water storage cistern, the first water pump is equipped at the top of the cold water storage cistern, first water pump bottom connects the first drinking-water pipe, and described first takes out
Water pipe bottom end runs through the top of the cold water storage cistern and extends to bottom in cold water storage cistern, and first water pump side is connected with the first spray
Water pipe, first sparge pipe bottom end is at the top of the body and extends to and is connected with fog-spray nozzle in body, the transverse direction every
Plate is located at the fog-spray nozzle following position directly equipped with collector nozzle, and the collector nozzle is interior to be equipped with the second strainer, the collector nozzle bottom
It is connected with and is lauched chute, it is described to be lauched chute bottom connection circulating box, the bottom of the circulating box and body inner wall bottom
Connection, the circulation chamber interior wall are embedded semiconductor chilling plate, are equipped with the second water pump, second water pump bottom in the cold water storage cistern
The second drinking-water pipe is connected, second drinking-water pipe bottom end sequentially passes through the cold water storage cistern, the lateral partitions and the circulating box
And bottom in the circulating box is extended to, second water pump other side is equipped with the second sparge pipe, and second sparge pipe runs through
The cold water box outer wall is simultaneously connected with water hose, and the cold water storage cistern side is equipped with cabinet, is equipped with driving motor in the cabinet,
Driving motor side output end is connected with runner, is uniformly provided with multiple threaded holes, and the threaded hole on front side of the runner
Linearly distribution, one of them described threaded hole internal screw thread are connected with screw rod, run through on the screw rod and be equipped with motion bar, and is described
The head of screw rod is connected on front side of the motion bar, and described motion bar one end is hinged with cross bar, is socketed with two on the outside of the cross bar
A first axle sleeve, the cross bar threaded one end are connected with rack gear, and the rack gear side engagement is connected with gear, the gear top
It is fixedly connected with bull stick at center, the second axle sleeve there are two the top of the cabinet and connections is run through at the top of the bull stick, it is described
Second axle sleeve is set in outside the water hose, and described water hose one end is connected with fountain head.
As a preferred technical solution of the present invention, first axle sleeve bottom is connected with fixed block, the fixed block
Bottom is connect with bottom in the cabinet.
As a preferred technical solution of the present invention, the organism bottom is connected with wheel, the machine by support frame
Body side, which is equipped with, pushes handle.
As a preferred technical solution of the present invention, bottom is equipped with bearing, the top connection in the cabinet
The bull stick.
As a preferred technical solution of the present invention, the body side is communicated with exhaust outlet.
As a preferred technical solution of the present invention, be equipped with battery below the lateral partitions, the battery with
The aspiration pump, the electrostatic precipitation plate, the semiconductor chilling plate, first water pump, second water pump, the driving
Electrical connection of motor.
As a preferred technical solution of the present invention, described rack gear one end be equipped with screw thread, described cross bar one end be equipped with
The screw hole of the rack gear threaded one end connection.
As a preferred technical solution of the present invention, electrostatic precipitation chamber two sides are equipped with and the filter chamber, washing
The blow vent of purify cavity connection.
The beneficial effects obtained by the present invention are as follows being: air, which enters in filter chamber, to carry out by the first strainer primary filtration, so
Enter in electrostatic precipitation chamber afterwards and carry out electrostatic precipitation, intracavitary subsequently into water washing cleaning, the first water pump draws water simultaneously from cold water storage cistern
It is sprayed by fog-spray nozzle, on the one hand the cold mist of formation cleans the dust of remaining, on the other hand can reduce air
Temperature, so as to effectively remove the dust in air, cold water enters in circulating box eventually by chute is lauched, by semiconductor
The second sparge pipe is evacuated to by the second water pump after the cooling of cooling piece and is sprayed by fountain head, the cold water of ejection, which reaches the external world, to be removed
The effect of dirt cooling, and when for carrying out watering cooling in building, since the area for the cooling that needs to sprinkle water is uncertain, Ke Yitong
The rotation of motor driven of overdriving runner drives motion bar by screw rod when runner rotates, and motion bar drives cross bar to move left and right, this
When the first axle sleeve play guiding role, and when rack gear follows cross bar to move left and right, drive the gear left/right rotation for engaging connection
It is dynamic, thus make bull stick left-right rotation, thus make water hose that fountain head be driven to rock from side to side, and by the way that screw rod is inserted into difference
Threaded hole in, the distance that cross bar moves left and right can be changed, fountain head is finally made to rock from side to side the angle change of water spray, so as to
To change the area coverage of water spray, to be adapted to the demand of different Environment Inside the Buildings.
Detailed description of the invention
Attached drawing is used to provide further understanding of the present invention, and constitutes part of specification, with reality of the invention
It applies example to be used to explain the present invention together, not be construed as limiting the invention.In the accompanying drawings:
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is the internal structure chart of cabinet of the invention；
Fig. 3 is the surface side the A-A view of Fig. 2；
Fig. 4 is enlarged drawing at a of the invention；
Fig. 5 is the side view of Fig. 4；
Fig. 6 is top view of the invention.
In figure: 1, body；2, lateral partitions；3, filter chamber；4, electrostatic precipitation chamber；5, water washing cleaning chamber；6, exhaust tube；7,
Aspiration pump；8, the first strainer；9, electrostatic precipitation plate；10, cold water storage cistern；11, the first water pump；12, the first drinking-water pipe；13, the first spray
Water pipe；14, fog-spray nozzle；15, collector nozzle；16, it is lauched chute；17, circulating box；18, semiconductor chilling plate；19, the second water pump；
20, the second drinking-water pipe；21, water hose；22, cabinet；23, driving motor；24, runner；25, threaded hole；26, screw rod；27, living
Lever；28, cross bar；29, the first axle sleeve；30, rack gear；31, gear；32, bull stick；33, the second axle sleeve；34, fountain head；35, solid
Determine block；36, bearing；37, exhaust outlet；38, battery；39, blow vent；40, the second sparge pipe；41, the second strainer.
Specific embodiment
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, it should be understood that preferred reality described herein
Apply example only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.
Embodiment 1
As shown in figs 1 to 6, the present invention provides a kind of building cooling dust-extraction unit, including body 1, is equipped with cross in the body 1
To partition 2,2 top of lateral partitions is from left to right successively arranged filter chamber 3, electrostatic precipitation chamber 4 and water washing cleaning chamber 5, institute
It states and is communicated with exhaust tube 6 on the left of filter chamber 3, aspiration pump 7,7 bottom of aspiration pump and the machine are installed on the exhaust tube 6
The fixing seat being equipped on the left of body 1 is fixedly connected, and the first strainer 8, the electrostatic precipitation chamber 4 are vertically connected in the filter chamber 3
Two blocks of electrostatic precipitation plates 9 are inside equipped with, cold water storage cistern 10 is equipped at the top of the body 1, is equipped with the first water pump at the top of the cold water storage cistern 10
11,11 bottom of the first water pump connects the first drinking-water pipe 12, and 12 bottom end of the first drinking-water pipe is through the cold water storage cistern 10
Top simultaneously extends to bottom in cold water storage cistern 10, and 11 side of the first water pump is connected with the first sparge pipe 13, first water spray
13 bottom end of pipe, which is run through 1 top of body and extended in body 1, is connected with fog-spray nozzle 14, and the lateral partitions 2 are located at described
14 following position directly of fog-spray nozzle is equipped with collector nozzle 15, is equipped with the second strainer 41,15 bottom of collector nozzle in the collector nozzle 15
It is connected with and is lauched chute 16, it is described to be lauched 16 bottom of chute connection circulating box 17, the bottom of the circulating box 17 and the body 1
The connection of inner wall bottom, 17 inner wall of circulating box are embedded semiconductor chilling plate 18, are equipped with the second water pump 19 in the cold water storage cistern 10,
Second water pump, 19 bottom connects the second drinking-water pipe 20,20 bottom end of the second drinking-water pipe sequentially pass through the cold water storage cistern 10,
The lateral partitions 2 and the circulating box 17 simultaneously extend to bottom in the circulating box 17, and 19 other side of the second water pump is set
There is the second sparge pipe 40, second sparge pipe 20 is through 10 outer wall of cold water storage cistern and is connected with water hose 21, described cold
10 side of water tank is equipped with cabinet 22, and driving motor 23,23 side output end of the driving motor connection are equipped in the cabinet 22
There is runner 24, multiple threaded holes 25 is uniformly provided on front side of the runner 24, and the threaded hole 25 is linearly distributed, one of them
25 internal screw thread of threaded hole is connected with screw rod 26, runs through on the screw rod 26 and is equipped with motion bar 27, and the head of the screw rod 26
Portion is connected to 27 front side of motion bar, and described 27 one end of motion bar is hinged with cross bar 28, is socketed with two on the outside of the cross bar 28
A first axle sleeve 29,28 threaded one end of cross bar are connected with rack gear 30, and 30 side of the rack gear engagement is connected with gear 31, institute
It states and is fixedly connected with bull stick 32 at 31 top center of gear, the top of the cabinet 22 is run through at the top of the bull stick 32 and be connected with
Two the second axle sleeves 33, second axle sleeve 33 are set in outside the water hose 21,21 one end of water hose connection
There is fountain head 34.
First axle sleeve, 29 bottom is connected with fixed block 35, and bottom connects in 35 bottom of fixed block and the cabinet 22
It connects, fixed block 35 is played a supporting role, and 1 bottom of body is connected with wheel by support frame, and the body side is equipped with and pushes away
Dynamic handle, is moved easily the present invention, and bottom is equipped with bearing 36 in the cabinet 22, connects the bull stick at the top of the bearing 36
32, the movement that can be convenient bull stick 32,1 side of body is communicated with exhaust outlet 37, and air is finally discharged from exhaust outlet 37,
It is equipped with battery 38 below the lateral partitions 2, it is the battery 38 and the aspiration pump 7, the electrostatic precipitation plate 9, described
Semiconductor chilling plate 18, first water pump 11, second water pump 19, the driving motor 23 are electrically connected, battery 38
For the aspiration pump 7, the electrostatic precipitation plate 9, the semiconductor chilling plate 18, first water pump 11, second water pump
19, the driving motor 23 provides electric power, and described 30 one end of rack gear is equipped with screw thread, and described 28 one end of cross bar is equipped with and the rack gear
The screw hole of 30 threaded one ends connection, is fixedly connected with rack gear 30 with cross bar 28, and 4 two sides of electrostatic precipitation chamber are equipped with and the mistake
The blow vent 39 that filter chamber 3, water washing cleaning chamber 5 are connected to, 4 both ends of electrostatic precipitation chamber pass through blow vent 39 and filter chamber 3, water washing cleaning
Chamber 5 is connected to.
In the use of the present invention, the present apparatus to be pushed to the position for the dedusting that needs to cool down, aspiration pump 7 is then opened from pumping
Pipe 6 is evacuated, and air enters in filter chamber 3 through 8 primary filtration of the first strainer, subsequently into carrying out in electrostatic precipitation chamber 4
Electrostatic precipitation, subsequently into water washing cleaning chamber 5, the first water pump 11 draws water from cold water storage cistern 10 and is sprayed by fog-spray nozzle 14,
On the one hand the cold mist formed in water washing cleaning chamber 5 cleans the dust of remaining, on the other hand can reduce water and clean
Change the temperature of air in chamber 5, cold mist is adsorbed with the dust of the bulky grain of remaining, and enters circulation eventually by chute 16 is lauched
In case 17, the second strainer of period 41 plays barrier effect to the dust of bulky grain, by the cooling again of semiconductor chilling plate 18
The second sparge pipe 40 is evacuated to by the second water pump 19 afterwards and is sprayed by fountain head 34, to reach the effect of dedusting cooling to the external world
Fruit, and for carry out building watering cooling when, can by driving motor 23 drive runner 24 rotate, runner 24 rotate when pass through
Screw rod 26 drives motion bar 27 to do eccentric rotary, and motion bar 27 drives cross bar 28 back and forth to move left and right, and the first axle sleeve 29 rises at this time
To guiding role, and when rack gear 30 follows cross bar 28 to move left and right, 31 left-right rotation of gear for engaging connection is driven, thus
Make 32 left-right rotation of bull stick, to make water hose 21 that fountain head 34 be driven to rock from side to side, the motion profile of fountain head 34 is circle
Arc, and by being inserted into screw rod 26 in different threaded holes 25, the distance that cross bar 28 moves left and right can be changed, finally make to spray
Head 34 rocks from side to side the angle change of water spray, so as to change the area coverage of water spray, to be adapted to different building rings
The demand in border.
Finally, it should be noted that these are only the preferred embodiment of the present invention, it is not intended to restrict the invention, although
Present invention has been described in detail with reference to the aforementioned embodiments, for those skilled in the art, still can be right
Technical solution documented by foregoing embodiments is modified or equivalent replacement of some of the technical features.It is all
Within the spirit and principles in the present invention, any modification, equivalent replacement, improvement and so on should be included in protection of the invention
Within the scope of.
Claims (8)
1. a kind of building cooling dust-extraction unit, including body (1), which is characterized in that be equipped with lateral partitions in the body (1)
(2), filter chamber (3), electrostatic precipitation chamber (4) and water washing cleaning chamber are from left to right successively arranged above the lateral partitions (2)
(5), it is communicated with exhaust tube (6) on the left of the filter chamber (3), aspiration pump (7), the pumping is installed on the exhaust tube (6)
The fixing seat being equipped on the left of pump (7) bottom and the body (1) is fixedly connected, and is vertically connected with first in the filter chamber (3)
Strainer (8), the electrostatic precipitation chamber (4) is interior to be equipped with two pieces of electrostatic precipitation plates (9), is equipped with cold water storage cistern at the top of the body (1)
(10), the first water pump (11) are equipped at the top of the cold water storage cistern (10), the first water pump (11) bottom connects the first drinking-water pipe
(12), the first drinking-water pipe (12) bottom end runs through the top of the cold water storage cistern (10) and extends to cold water storage cistern (10) interior bottom,
First water pump (11) side is connected with the first sparge pipe (13), and the body is run through in the first sparge pipe (13) bottom end
(1) top and extending in body (1) is connected with fog-spray nozzle (14), and the lateral partitions (2) are being located at the fog-spray nozzle (14) just
Lower position is equipped with collector nozzle (15), is equipped with the second strainer (41) in the collector nozzle (15), and collector nozzle (15) bottom connects
It is connected to and is lauched chute (16), it is described to be lauched chute (16) bottom connection circulating box (17), the bottom of the circulating box (17) and institute
The connection of body (1) inner wall bottom is stated, circulating box (17) inner wall is embedded semiconductor chilling plate (18), in the cold water storage cistern (10)
Equipped with the second water pump (19), the second water pump (19) bottom connects the second drinking-water pipe (20), the second drinking-water pipe (20) bottom
End sequentially passes through the cold water storage cistern (10), the lateral partitions (2) and the circulating box (17) and extends to the circulating box
(17) interior bottom, the second water pump (19) other side are equipped with the second sparge pipe (40), and second sparge pipe (20) runs through institute
It states cold water storage cistern (10) outer wall and is connected with water hose (21), cold water storage cistern (10) side is equipped with cabinet (22), the cabinet
(22) driving motor (23) are equipped in, driving motor (23) side output end is connected with runner (24), the runner (24)
Front side is uniformly provided with multiple threaded holes (25), and the threaded hole (25) is linearly distributed, one of them described threaded hole (25)
Internal screw thread is connected with screw rod (26), is run through on the screw rod (26) and is equipped with motion bar (27), and the head of the screw rod (26) is supported
It connects on front side of the motion bar (27), described motion bar (27) one end is hinged with cross bar (28), socket on the outside of the cross bar (28)
There are two the first axle sleeve (29), cross bar (28) threaded one end is connected with rack gear (30), and rack gear (30) the side engagement connects
It is connected to gear (31), is fixedly connected with bull stick (32) at gear (31) top center, institute is run through at the top of the bull stick (32)
It states the top of cabinet (22) and connects there are two the second axle sleeve (33), second axle sleeve (33) is set in the water hose
(21) external, described water hose (21) one end is connected with fountain head (34).
2. a kind of building cooling dust-extraction unit according to claim 1, which is characterized in that the first axle sleeve (29) bottom
It is connected with fixed block (35), fixed block (35) bottom is connect with the cabinet (22) interior bottom.
3. a kind of building cooling dust-extraction unit according to claim 1, which is characterized in that body (1) bottom surrounding
It is connected with wheel by support frame, body (1) side, which is equipped with, pushes handle.
4. a kind of building cooling dust-extraction unit according to claim 1, which is characterized in that the interior bottom of the cabinet (22) is set
Have bearing (36), the bull stick (32) is connected at the top of the bearing (36).
5. a kind of building cooling dust-extraction unit according to claim 1, which is characterized in that body (1) the side connection
There are exhaust outlet (37).
6. a kind of building cooling dust-extraction unit according to claim 1, which is characterized in that below the lateral partitions (2)
Equipped with battery (38), the battery (38) and the aspiration pump (7), the electrostatic precipitation plate (9), the semiconductor refrigerating
Piece (18), first water pump (11), second water pump (19), the driving motor (23) are electrically connected.
7. a kind of building cooling dust-extraction unit according to claim 1, which is characterized in that described rack gear (30) one end is equipped with
Screw thread, described cross bar (28) one end are equipped with the screw hole connecting with the rack gear (30) threaded one end.
8. a kind of building cooling dust-extraction unit according to claim 1, which is characterized in that the electrostatic precipitation chamber (4) two
Side is equipped with the blow vent (39) being connected to the filter chamber (3), water washing cleaning chamber (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811318179.XA CN109468990B (en) | 2018-11-07 | 2018-11-07 | Building cooling dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811318179.XA CN109468990B (en) | 2018-11-07 | 2018-11-07 | Building cooling dust collector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109468990A true CN109468990A (en) | 2019-03-15 |
| CN109468990B CN109468990B (en) | 2020-09-11 |
Family
ID=65671894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811318179.XA Active CN109468990B (en) | 2018-11-07 | 2018-11-07 | Building cooling dust collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109468990B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110262595A (en) * | 2019-05-20 | 2019-09-20 | 湖北嘉辐达节能科技股份有限公司 | A kind of certainly cooling kiln processing environment control device |
| CN110820661A (en) * | 2019-11-30 | 2020-02-21 | 重庆建筑工程职业学院 | Construction site dust control equipment |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN109468990B (en) | 2020-09-11 |
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