CN113599937A - Efficient dust settling system and dust settling process for house demolition - Google Patents
Efficient dust settling system and dust settling process for house demolition Download PDFInfo
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- CN113599937A CN113599937A CN202110965753.6A CN202110965753A CN113599937A CN 113599937 A CN113599937 A CN 113599937A CN 202110965753 A CN202110965753 A CN 202110965753A CN 113599937 A CN113599937 A CN 113599937A
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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
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
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Abstract
The application relates to a house is demolishd and is used high-efficient dust fall system and dust fall technology, and it is including installing on the transport vechicle and liftable folding watering device and installing the dust extraction who is used for absorbing dust and water smoke on the transport vechicle, dust extraction is including installing at transport vechicle one side dust absorption pipe, for the aspiration pipe provides the aspiration pump of suction and be used for handling the processing subassembly of dust and water smoke. This application has the characteristics of high-efficient dust fall when demolising the house, reaches the effect that improves the house and demolishs efficiency and be convenient for people to clear up building rubbish.
Description
Technical Field
The application relates to the technical field of house demolition equipment, in particular to a house demolition efficient dust settling system and a dust settling process.
Background
The house is a common living residence of people, the stability of the house is an important guarantee for the life safety of people, the house serving as a building also has a certain service life, and when the house reaches the service life or has a larger defect, the house needs to be dismantled and rebuilt.
The in-process that the house demolishd, the breakage of concrete can produce certain dust and building rubbish, and the dust that produces after the house is demolishd sinks to certain degree after, clears up and building waste cyclic utilization to these building rubbish, and at this in-process, the nature of dust subsides comparatively slowly, consequently, often subsides dust through modes such as watering.
In view of the above-mentioned related art, the inventor believes that the manner in which dust is settled by sprinkling water is slow, and further improvement is desired.
Disclosure of Invention
In order to improve the dust fall speed in the house demolition process and improve the house demolition efficiency, the application provides a house demolishs and uses high-efficient dust fall system and dust fall technology.
The application provides a house is demolishd and is used high-efficient dust fall system and dust fall technology adopts following technical scheme:
the utility model provides a house is demolishd and is used high-efficient dust fall system, is including installing on the transport vechicle and liftable folding watering device and installing the dust extraction who is used for absorbing dust and water smoke on the transport vechicle, dust extraction is including installing at transport vechicle one side dust absorption pipe, for the aspiration pump that the dust absorption pipe provided suction and be used for handling the processing module of dust and water smoke.
Through adopting above-mentioned technical scheme, installation watering device and including the dust extraction of processing subassembly can be to demolising the produced dust in house and watering the dust fall, simultaneously, absorb dust and water smoke in the bottom, can accelerate the speed of dust fall and improve the dust fall quality to can reduce dust too big and influence the circumstances that the resident was healthy on every side, absorb dust in addition, can reduce the dust that later stage clearance building rubbish produced or aroused, fundamentally clearance dust.
Optionally, watering device includes that a plurality of heads and tails rotate the arm of connecting folding setting, and is adjacent keep away from the transport vechicle through the telescopic cylinder drive between the arm install the watering board on the arm, install the water tank on the transport vechicle, the intercommunication is installed the watering hose on the water tank, install the water pump between water tank and the watering hose, the watering hose is kept away from water tank one end and is passed the arm in proper order and communicate with the watering board.
Through adopting above-mentioned technical scheme, installation arm, telescoping cylinder, watering board, water tank, watering hose and water pump open the telescoping cylinder, can drive the arm and expand to lift up watering hose one end and watering board, demolish the position to the house of eminence and carry out the watering, thereby the watering position of regulation watering board that can be nimble, demolish the dust that produces with better to the house and carry out the dust fall.
Optionally, the watering plate rotates to be installed on the arm and adjusts turned angle through the motor, the watering of watering plate personally submits triangle-shaped, and at the watering in-process, the watering volume of keeping away from arm one side is more than being close to arm one side.
Through adopting above-mentioned technical scheme, the installation telescoping cylinder with set the watering plate to three horn shapes, the distribution that can be convenient for adjust the watering direction and the make full use of watering plate comes the dust fall, can reach dust fall effect better.
Optionally, the watering plate includes the aqueduct and with the watering orifice plate of the detachable intercommunication of aqueduct, when the watering plate is in fold condition, the watering face that aqueduct one side was kept away from to the watering orifice plate faces upward, the detachable filter screen of installing in the aqueduct, the aqueduct passes through the aqua storage union coupling with the water tank, install the valve on the aqua storage pipe.
Through adopting above-mentioned technical scheme, installation aqueduct and watering orifice plate, the watering orifice plate can be collected the rainwater to recycle.
Optionally, a plurality of groups of elastic arc pieces are annularly arranged on the water guide pipe, one group of elastic arc pieces comprises elastic arc pieces with two convex arc surfaces abutting against each other, and a locking hole for embedding the two elastic arc pieces is formed in the edge of the filter screen.
Through adopting above-mentioned technical scheme, installation elasticity arc piece with set up the locking hole, can be through rotating the filter screen, with the convex part embedding of elasticity arc piece in the locking hole to firm locking filter screen can be convenient for install and dismantle the filter screen, the workman of being convenient for clears up the filter screen.
Optionally, the watering hole plate is in threaded connection with the water guide pipe, a hand wheel is installed on the outer side of the watering hole plate, and the hand wheel coincides with the center line of the watering hole plate.
Through adopting above-mentioned technical scheme, watering orifice plate and aqueduct threaded connection set up the hand wheel, can be convenient for install and dismantle the watering orifice plate to in collect and utilize the rainwater, reach energy-concerving and environment-protective effect.
Optionally, the dust suction pipe is far away from and is connected one end intercommunication with the aspiration pump and install the dust absorption board, a plurality of dust absorption mouths have been seted up to dust absorption board one side of keeping away from the dust suction pipe, dust absorption board keeps away from dust suction pipe one side and sets to the arcwall face sunken to dust suction pipe one side.
Through adopting above-mentioned technical scheme, the installation dust absorption board to keep away from dust absorption pipe side at the dust absorption board and set the arcwall face into, can enlarge the absorptive area of dust, thereby improve the absorptive efficiency of dust and water smoke and quality.
Optionally, a protective frame for reducing the damage of building fragments to the dust collection plate is mounted on the arc-shaped surface of the dust collection plate.
Through adopting above-mentioned technical scheme, the installation protection frame can reduce the house and dismantle the in-process, and the condition that building rubbish hit the dust absorption board.
Optionally, the treatment component comprises a treatment box filled with water, the input end of the air suction pump is communicated with one end of the dust suction pipe, the output end of the air suction pump stretches into the bottom of the treatment box, the top of the treatment box is provided with an exhaust pipe, and the exhaust pipe is provided with a dust filter screen.
Through adopting above-mentioned technical scheme, case, blast pipe and dust filter net are handled in the installation, can let in the aquatic of handling in the case with the mist that has dust to collect dust, reduce dust and to the influence of surrounding environment, reach the effect of high-efficient clearance dust.
A construction method using the efficient dust settling system for house demolition comprises the following steps:
the method comprises the following steps: transporting the transport vehicle to a house dismantling position;
step two: before the house is dismantled, a watering device is adopted to sprinkle water on the house;
step three: when demolishing the house, adopt watering device to remove the position and spill the dust fall, simultaneously, open dust extraction, absorb dust and water smoke in the bottom.
Through adopting above-mentioned technical scheme, to watering moist to the house, then at the in-process of dismantling, adopt the top watering, the mode of below dust absorption can be demolishd the dust that the in-process produced to the house and carry out efficient dust fall and clearance, reduces the house and demolishs the influence that the dust that the in-process produced to the surrounding environment.
In summary, the present application includes at least one of the following beneficial technical effects:
1. by installing the transport vehicle, the water spraying device and the dust collection device, dust generated in the house disassembly process can be efficiently reduced, and collected, so that the influence caused by dust accumulation is reduced;
2. through setting up processing case, blast pipe and dust filter net, can carry out high-efficient clearance to inspiratory dust mist, reduce dust and scatter and cause harmful effects to the ring in the air, clean mode is simple and convenient.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.
Fig. 2 is a schematic view of an installation structure of a filter screen in the embodiment of the present application.
Description of reference numerals:
1. a transport vehicle; 10. a water tank; 2. a watering device; 20. a mechanical arm; 21. a sprinkler plate; 210. a water conduit; 211. a watering hole plate; 2110. a hand wheel; 212. a filter screen; 2120. an elastic arc piece; 2121. a locking hole; 213. a water storage pipe; 214. a valve; 22. a water hose; 23. a water pump; 3. a dust collection device; 30. a dust collection pipe; 31. an air pump; 32. a processing component; 320. a treatment tank; 321. an exhaust pipe; 322. a dust filter screen; 33. a dust collection plate; 34. a dust suction port; 35. a protective frame.
Detailed Description
The present application is described in further detail below with reference to figures 1-2.
The embodiment of the application discloses house is demolishd and is used high-efficient dust fall system and dust fall technology.
Referring to fig. 1, the house is demolishd and is used high-efficient dust fall system includes transport vechicle 1, install watering device 2 and dust extraction 3 on transport vechicle 1, watering device 2 installs at transport vechicle 1 top, and the liftable is folding, thereby can demolish the position to the house of co-altitude not and carry out the watering dust fall, dust extraction 3 that is in transport vechicle 1 one side is used for absorbing dust and the water smoke that contains dust, on the one hand, can accelerate the subsidence of dust, in order to reduce dust and fly upward the influence to the surrounding environment, on the other hand, can collect dust, reduce the influence that dust secondary was raised and is brought.
The watering device 2 comprises a plurality of mechanical arms 20 connected in a head-tail rotating manner, the adjacent two mechanical arms 20 can be folded, the adjacent two mechanical arms 20 and the mechanical arm 20 close to the transport vehicle 1 are connected with the transport vehicle 1 through the telescopic cylinder in a driving manner, the telescopic cylinder can adopt a cylinder, a hydraulic cylinder can also be adopted, so that the folded mechanical arm 20 can be unfolded, a watering plate 21 and a motor are installed on the mechanical arm 20 far away from one side of the transport vehicle 1, the watering plate 21 is connected with the mechanical arm 20 in a rotating manner, the output end of the motor is fixedly connected with the watering plate 21, so that the angle between the watering plate 21 and the mechanical arm 20 can be adjusted through the motor, and the motor can adopt a servo motor.
Install water tank 10 on transport vechicle 1, water tank 10 is last to communicate and is installed watering hose 22, install water pump 23 between watering hose 22 and the water tank 10, watering hose 22 keeps away from water tank 10 one end and passes end to end's arm 20 in proper order, and finally communicate with watering board 21, thereby can be through drive water pump 23, extract water in the water tank 10 to watering board 21 in, with watering to the position that the house was demolishd on, in order to reach the effect of dust fall, highly driving motor is come to the house dismantlement according to distance between the position that watering device 2 and house were demolishd and the house, adjust watering board 21's watering direction, with better subsides the dust of dismantling the in-process production in the house.
The sprinkler plate 21 comprises a water guide pipe 210 and a sprinkling hole plate 211 detachably connected with one end of the water guide pipe 210, the water guide pipe 210 and the sprinkling hole plate 211 are both arranged in a cylindrical shape, one end of the water guide pipe 210, far away from the sprinkling hole plate 211, is communicated with a sprinkling hose 22, the sprinkling hole plate 211 is in threaded connection with the water guide pipe 210, a hand wheel 2110 is arranged outside the sprinkling hole plate 211, the center line of the hand wheel 2110 is overlapped with the center line of the sprinkling hole plate 211, the hand wheel 2110 is connected with the sprinkling hole plate 211 through a connecting rod, so that the sprinkling hole plate 211 can be conveniently rotated through the hand wheel 2110, and the sprinkling hole plate 211 is detached from the water guide pipe 210.
When the mechanical arm 20 and the sprinkler panel 21 are both in a folded state, an opening at one end of the water conduit 210 communicated with the sprinkler aperture plate 211 faces upward, a water storage pipe 213 is installed at one end of the sprinkler hose 22 far away from the water pump 23 in a communicating manner, one end of the water storage pipe 213 far away from the sprinkler hose 22 bypasses the water pump 23 to be directly communicated with the water tank 10, a valve 214 is installed in the water storage pipe 213, and the valve 214 can be a manual valve or an electric valve.
When rainy day, set mechanical arm 20 and watering board 21 to fold condition, aqueduct 210 one end opening up opens valve 214, just can collect the rainwater, and the rainwater flows in from aqueduct 210 opening towards the upper end to carry out the water storage through watering hose 22 and standpipe 213 direct inflow water tank 10, thereby can make full use of rainwater, reach energy-concerving and environment-protective effect.
In order to improve the quality of the collected rainwater, a filter screen 212 is detachably mounted on the inner side of the water guide pipe 210, the filter screen 212 can filter the rainwater when collecting the rainwater, the quality of the collected rainwater is improved, and in the watering process, the water in the water tank 10 can be filtered, so that the blocking of the watering hole plate 211 is reduced.
In order to improve the watering efficiency, arrange into triangle-shaped with the watering hole on the watering orifice plate 211, the quantity in watering hole is from being close to arm 20 to keeping away from arm 20 and increasing gradually, at the watering in-process, the watering of watering orifice plate 211 is triangle-shaped, and the watering volume of keeping away from arm 20 one side is more than being close to arm 20 one side, at the watering in-process, the watering direction of watering orifice plate 211 is preceding below generally, it can appropriate reduction to keep away from the house and demolish the position and be close to the watering volume of arm 20 one side promptly, thereby can improve the utilization ratio of watering, reach energy-concerving and environment-protective effect.
In order to facilitate the installation and the detachment of the filter screen 212, a plurality of sets of elastic arc pieces 2120 are annularly arranged on the inner side of the water conduit 210, two elastic arc pieces 2120 are arranged on each set of elastic arc pieces 2120, two convex arc surfaces of two elastic arc pieces 2120 in the same set abut against each other and press against each other, a yielding hole is correspondingly formed in the outer side of the filter screen 212, a locking hole 2121 is formed in the position, close to the yielding hole, of the outer side of the filter screen 212, the filter screen 212 is embedded into the water conduit 210 through the yielding hole, two convex parts of two elastic arc pieces 2120 in the same set are embedded into the locking hole 2121 by rotating the filter screen 212, and therefore the filter screen 212 can be locked into the water conduit 210, in addition, the elastic arc pieces 2120 can play a buffering role on the filter screen 212, and the filter screen 212 can be better protected.
In this embodiment, a dust suction plate 33 is installed at the dust suction end of the dust suction pipe 30 in a communicating manner, a plurality of dust suction ports 34 are formed in an end surface of the dust suction plate 33 away from the dust suction pipe 30, and an end surface of the dust suction plate 33 away from the dust suction pipe 30 is set to be an arc surface recessed towards one side of the dust suction pipe 30, so that the dust suction area can be increased, and the dust suction effect can be improved.
In order to reduce the damage of the dust collection plate 33 caused by the construction wastes falling on the dust collection plate 33 in the house dismantling process, a protective frame 35 is arranged on the arc-shaped surface of the dust collection plate 33, and the protective frame 35 is in a plane grid shape.
In this embodiment, the processing assembly 32 includes a processing box 320 mounted on the transportation vehicle 1, the processing box 320 is filled with water, the input end of the suction pump 31 is communicated with one end of the dust suction pipe 30 far from the dust suction plate 33, the output end of the suction pump 31 extends into the inner bottom of the processing box 320 through a pipeline, the top of the processing box 320 is communicated with an exhaust pipe 321, and the exhaust pipe 321 is provided with a dust filter 322.
The suction pump 31 is turned on to draw the mist with dust into the water inside the treatment tank 320, so that the dust is left in the treatment tank 320 to collect the dust, and the dust is reduced from settling on the construction waste and being re-lifted when the construction waste is treated or when wind blows, causing adverse effects on the surrounding environment.
The embodiment of the application further discloses a construction method of the efficient dust settling system for house demolition, which comprises the following steps:
firstly, the transport vehicle 1 is driven to a house dismantling position, and the dust suction plate 33 on the dust suction device 3 is opposite to a house needing dismantling.
And step two, lifting the sprinkling plate 21 on the sprinkling device 2 to a height higher than that of the house to carry out primary sprinkling on the house, and if the water in the water tank 10 is insufficient, carrying out water delivery on the water tank 10 by connecting the water tank 10 with a local water pipe.
Step three, when demolising the house, the concrete position that watering device 2 demolishd the house sprays the dust fall, and dust extraction 3 collects and handles the dust of bottom and the water smoke that has dust to can reach the effect of high-efficient dust fall, reduce the dust diffusion and influence resident's around physical and mental health and the influence to the surrounding environment.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. The utility model provides a house is demolishd and is used high-efficient dust fall system which characterized in that: including installing on transport vechicle (1) and liftable folding watering device (2) and installing dust extraction (3) that are used for absorbing dust and water smoke on transport vechicle (1), dust extraction (3) are including installing at transport vechicle (1) one side dust absorption pipe (30), for aspiration pump (31) that dust absorption pipe (30) provided suction and be used for handling processing subassembly (32) of dust and water smoke.
2. The efficient dustfall system for house demolition according to claim 1, wherein: watering device (2) include that a plurality of heads and tails rotate arm (20) of connecting folding setting, and are adjacent through the telescoping cylinder drive between arm (20), keep away from transport vechicle (1) install watering board (21) on arm (20), install water tank (10) on transport vechicle (1), watering hose (22) are installed to the intercommunication on water tank (10), install water pump (23) between water tank (10) and watering hose (22), watering hose (22) are kept away from water tank (10) one end and are passed arm (20) in proper order and are linked together with watering board (21).
3. The efficient dustfall system for house demolition according to claim 2, wherein: the watering plate (21) is rotatably installed on the mechanical arm (20) and the rotating angle of the watering plate is adjusted through the motor, the watering surface of the watering plate (21) is triangular, and the amount of watering away from one side of the mechanical arm (20) is more than that close to one side of the mechanical arm in the watering process.
4. The efficient dustfall system for house demolition according to claim 2, wherein: watering board (21) include aqueduct (210) and with watering orifice plate (211) of the detachable intercommunication of aqueduct (210), when watering board (21) is in fold condition, the watering face that aqueduct (210) one side was kept away from in watering orifice plate (211) is upwards, detachable filter screen (212) of installing in aqueduct (210), aqueduct (210) are connected through aqua storage pipe (213) with water tank (10), install valve (214) on aqua storage pipe (213).
5. The efficient dustfall system for house demolition according to claim 4, wherein: a plurality of groups of elastic arc pieces (2120) are annularly arranged on the water guide pipe (210), one group of elastic arc pieces (2120) comprises elastic arc pieces (2120) with two convex arc surfaces abutting against each other, and a locking hole (2121) for the two elastic arc pieces (2120) to be embedded into is formed in the edge of the filter screen (212).
6. The efficient dustfall system for house demolition according to claim 4, wherein: the water spraying hole plate (211) is in threaded connection with the water guide pipe (210), a hand wheel (2110) is installed on the outer side of the water spraying hole plate (211), and the center lines of the hand wheel (2110) and the water spraying hole plate (211) coincide.
7. The efficient dustfall system for house demolition according to claim 1, wherein: dust absorption pipe (30) are kept away from and are connected one end intercommunication with aspiration pump (31) and install dust absorption board (33), dust absorption board (33) are kept away from dust absorption pipe (30) one side and have been seted up a plurality of dust absorption mouths (34), dust absorption board (33) are kept away from dust absorption pipe (30) one side and are set to the arcwall face of sinking to dust absorption pipe (30) one side.
8. The efficient dustfall system for house demolition according to claim 1, wherein: and a protective frame (35) used for reducing the phenomenon that building fragments break the dust absorption plate (33) is arranged on the arc-shaped surface of the dust absorption plate (33).
9. The efficient dustfall system for house demolition according to claim 1, wherein: handle subassembly (32) including handling case (320) that is equipped with water, aspiration pump (31) input and dust absorption pipe (30) one end intercommunication, aspiration pump (31) output stretches into and handles case (320) bottom, handle case (320) top and install blast pipe (321), install dust screen (322) on blast pipe (321).
10. The construction method of the high-efficiency dust settling system for house demolition according to any one of claims 1 to 9, characterized in that: the method comprises the following steps:
the method comprises the following steps: the transport vehicle (1) is transported to a house dismantling position;
step two: before the house is dismantled, a watering device (2) is adopted to sprinkle water on the house;
step three: when demolishing the house, adopt watering device (2) to spray water the dust fall to demolishing the position, simultaneously, open dust extraction (3), absorb dust and water smoke in the bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110965753.6A CN113599937A (en) | 2021-08-23 | 2021-08-23 | Efficient dust settling system and dust settling process for house demolition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110965753.6A CN113599937A (en) | 2021-08-23 | 2021-08-23 | Efficient dust settling system and dust settling process for house demolition |
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| Publication Number | Publication Date |
|---|---|
| CN113599937A true CN113599937A (en) | 2021-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110965753.6A Pending CN113599937A (en) | 2021-08-23 | 2021-08-23 | Efficient dust settling system and dust settling process for house demolition |
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| CN (1) | CN113599937A (en) |
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| CN210993480U (en) * | 2019-09-12 | 2020-07-14 | 中电建十一局工程有限公司 | Novel dust fall equipment is used in earthwork operation |
| CN111871096A (en) * | 2020-07-14 | 2020-11-03 | 江苏富源广建设发展有限公司 | Rainwater is retrieved and is sprayed dust fall system for green construction |
| CN212835602U (en) * | 2020-08-14 | 2021-03-30 | 中建八局第一建设有限公司 | Spray dust-settling and cooling device for demolishing crushing machinery |
| CN112807898A (en) * | 2020-12-22 | 2021-05-18 | 盐城兴城置业有限公司 | House is demolishd with watering dust absorption formula dust device |
| CN213590022U (en) * | 2020-09-04 | 2021-07-02 | 杭州壹丈科技有限公司 | Raise dust system robot |
| CN213976207U (en) * | 2020-12-10 | 2021-08-17 | 湖南拓浦智能科技有限公司 | Arm type lifting dust suppression device |
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2021
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003001038A (en) * | 2001-06-18 | 2003-01-07 | Yutaka Bankin Kogyo Kk | Sprinkling dust collector |
| JP2017048574A (en) * | 2015-08-31 | 2017-03-09 | 日立建機株式会社 | Water sprinkling attachment, work machine, and water sprinkling system |
| CN206980365U (en) * | 2017-07-21 | 2018-02-09 | 李跃辉 | A kind of road construction device for reducing dust |
| CN210814488U (en) * | 2019-09-04 | 2020-06-23 | 重庆交通职业学院 | Dust collector for house construction |
| CN210993480U (en) * | 2019-09-12 | 2020-07-14 | 中电建十一局工程有限公司 | Novel dust fall equipment is used in earthwork operation |
| CN111871096A (en) * | 2020-07-14 | 2020-11-03 | 江苏富源广建设发展有限公司 | Rainwater is retrieved and is sprayed dust fall system for green construction |
| CN212835602U (en) * | 2020-08-14 | 2021-03-30 | 中建八局第一建设有限公司 | Spray dust-settling and cooling device for demolishing crushing machinery |
| CN213590022U (en) * | 2020-09-04 | 2021-07-02 | 杭州壹丈科技有限公司 | Raise dust system robot |
| CN213976207U (en) * | 2020-12-10 | 2021-08-17 | 湖南拓浦智能科技有限公司 | Arm type lifting dust suppression device |
| CN112807898A (en) * | 2020-12-22 | 2021-05-18 | 盐城兴城置业有限公司 | House is demolishd with watering dust absorption formula dust device |
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Application publication date: 20211105 |