CN114570141A - Construction site encloses fender and uses automatic environmental protection spraying dust device - Google Patents
Construction site encloses fender and uses automatic environmental protection spraying dust device Download PDFInfo
- Publication number
- CN114570141A CN114570141A CN202210069199.8A CN202210069199A CN114570141A CN 114570141 A CN114570141 A CN 114570141A CN 202210069199 A CN202210069199 A CN 202210069199A CN 114570141 A CN114570141 A CN 114570141A
- Authority
- CN
- China
- Prior art keywords
- spraying
- water
- baffle
- collecting tank
- dust
- 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.)
- Pending
Links
- 238000005507 spraying Methods 0.000 title claims abstract description 91
- 238000010276 construction Methods 0.000 title claims abstract description 32
- 239000000428 dust Substances 0.000 title claims abstract description 13
- 230000007613 environmental effect Effects 0.000 title claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 124
- 239000002245 particle Substances 0.000 claims abstract description 20
- 238000012544 monitoring process Methods 0.000 claims abstract description 13
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 239000007921 spray Substances 0.000 claims description 27
- 230000000694 effects Effects 0.000 abstract description 2
- 238000004064 recycling Methods 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 230000003020 moisturizing effect Effects 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Images
Classifications
-
- 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
- B01D47/063—Spray cleaning with two or more jets impinging against each other
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention discloses an automatic environment-friendly spraying dust-settling device for a construction site enclosure, which comprises a data acquisition sensor, a control end and a recyclable spraying system, wherein the data acquisition sensor is connected with the control end; the data acquisition sensor comprises an environment monitor and a GPRS wireless transmission module, the environment monitor monitors inhalable particles in a monitoring range, such as PM2.5 and PM10, the GPRS wireless transmission module transmits the values to the control end, the control end is provided with an early warning value of inhalable particle concentration, when the transmitted values of inhalable particle concentration exceed the early warning value, the control end starts the circulating spraying system, and when the concentration of inhalable particles falls below the early warning value, the circulating spraying system is closed. The dust-settling device can realize automatic spraying dust settling and water resource recycling, achieves better dust settling effect, saves a large amount of water resources, and is environment-friendly, economical and practical.
Description
Technical Field
The invention belongs to the technical field of concrete construction, and particularly relates to an automatic environment-friendly spraying dust-settling device for a construction site enclosure.
Background
With the rapid development of urban modernization, construction sites such as subway construction, road maintenance and the like appear in cities, the construction sites are one of main sources of inhalable dust particulate pollution, construction flying dust is an important reason causing urban haze and harms the health of urban residents, and therefore strengthening the treatment of the flying dust pollution of the construction sites is an urgent need for improving the urban air pollution.
At present, most standard construction site has set up spraying system on the bounding wall and has carried out the dust fall, but do not set up recovery system, cause the waste of a large amount of water resources, and enclose one side that keeps off and mostly be manway, because the shower nozzle sets up improperly, reasons such as wind speed is great, lead to large tracts of water smoke to cover the passageway, cause the discomfort of pedestrian, especially in winter, the water smoke of unrestrained manway freezes, cause the potential safety hazard to pedestrian, and more spraying system adopts artifical manual opening control, although some building sites have also practiced out raise dust monitoring system's intelligent control, but intelligent degree is not high, and popularization is not carried out. Therefore, an automatic environment-friendly spraying dust-settling device for construction site enclosure is needed.
Disclosure of Invention
The invention provides an automatic environment-friendly spraying dust-settling device for a construction site enclosure, aiming at the defects in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
an automatic environment-friendly spraying dust-settling device for a construction site enclosure is characterized by comprising a data acquisition sensor, a control end and a recyclable spraying system; the data acquisition sensor comprises an environment monitoring instrument and a GPRS wireless transmission module, the environment monitoring instrument monitors the concentration of inhalable particles in a monitoring range, the GPRS wireless transmission module transmits the value of the concentration of the inhalable particles to the control end, the control end is provided with an early warning value of the concentration of the inhalable particles, when the transmitted value of the concentration of the inhalable particles exceeds the early warning value, the control end opens the circulating spraying system, and the circulating spraying system sprays water to the construction site.
In order to optimize the technical scheme, the specific measures adopted further comprise:
further, after the recyclable spraying system is started, when the concentration of inhalable particles is monitored to be lower than the early warning value for 10 minutes continuously, the control end closes the recyclable spraying system, and the recyclable spraying system stops spraying water to the construction site.
Further, the recyclable spraying system comprises a high-pressure water pump, a water feeding pipe, a spraying main pipe, a spraying frame, a fence, a water collecting tank and an electromagnetic valve; one end of the high-pressure water pump is connected with the water collecting tank, the other end of the high-pressure water pump is fixedly connected with the water feeding pipe, and the high-pressure water pump is internally provided with a sensor, so that the pressure applied by the high-pressure water pump is controlled through a control end, and the spraying amount of the atomizing spray head can be further controlled; the upper water pipe is fixedly connected and communicated with a horizontally arranged spraying main pipe, and the electromagnetic valve is arranged on the upper water pipe; the spraying frame comprises a baffle which is a semi-surrounding structure with an opening facing one side of the construction site, and the baffle is fixedly connected to the spraying main pipe; the lower side of the spraying main pipe is fixedly connected with a surrounding baffle.
Furthermore, the spray frame also comprises a fastener, a baffle hole, a spray branch pipe and an atomization nozzle; the baffle plate hole is formed in the bottom surface of the baffle plate, a fastening piece is arranged on the baffle plate hole, and the baffle plate is fixed on the spraying main pipe through the fastening piece; one end of the spraying branch pipe penetrates through the baffle hole and the spraying main pipe to be fixedly connected, the other end of the spraying branch pipe penetrates through the fastening piece and is located in the baffle, and the atomizing nozzle is fixedly connected to the spraying branch pipe.
Furthermore, a water collecting tank is arranged on one side of the lower end of the enclosure facing the construction site, an outlet of the water collecting tank is positioned above the water collecting tank, and the water collecting tank can collect part of water resources sprayed by the atomizing nozzles on one hand, can also collect rainwater and underground water discharged by excavation of the foundation pit, and flows the collected water resources into the water collecting tank through the water collecting tank; the cross-section of water catch bowl is "U" shape, and the top of water catch bowl is equipped with first filter screen, avoids debris to get into the header tank.
Furthermore, a second filter screen is horizontally arranged in the water collecting tank.
Furthermore, the high-pressure water pump is internally provided with a sensor, so that the pressure applied by the high-pressure water pump is controlled through a control end, and the spraying amount of the atomizing nozzle can be further controlled.
Further, be provided with water level monitoring system in the header tank, water level monitoring system contains the ball-cock assembly, and when the water level dropped to the setting value, the ball-cock assembly was opened automatically, adopted municipal water supply pipe network water supply system to carry out the moisturizing to avoid collecting the problem that the water capacity is not enough.
Furthermore, the water supply pipe, the spraying main pipe and the spraying branch pipe are all PVC water supply pipes, and the PVC water supply pipe has the advantages of small self weight of the pipes, convenience in installation and disassembly, low manufacturing cost and the like.
Furthermore, the top surface of the baffle is a plate body capable of extending towards the inside of a construction site and contracting reversely, and the range of the baffle is adjusted according to the size of the spray.
The invention has the beneficial effects that:
1. in the recyclable spraying system provided by the invention, the baffle is arranged above each atomizing spray head, so that atomized water vapor sprayed by the atomizing spray heads is prevented from influencing pedestrians passing by the enclosure, and adverse effects of the sprayed water vapor on the outside of a construction site are reduced; the baffle is different from a conventional continuous baffle, can be installed according to actual requirements, is convenient and quick to install, and reduces the manufacturing cost of the baffle.
2. The circulating spraying system provided by the invention is provided with the baffle, the enclosure, the water collecting tank and the water collecting tank, water vapor is sprayed out of the atomizing spray head, the water vapor after dust fall falls on the baffle and the enclosure, flows into the water collecting tank and further flows into the water collecting tank, and the water source flowing into the water collecting tank can be recycled.
3. The wireless sensor is used for controlling the operation of the spraying system, when the flying dust reaches the early warning value in the construction site, the spraying system is automatically started, when the concentration of inhalable particles is monitored to be lower than the early warning value in 10 minutes continuously, the control end closes the recyclable spraying system, the recyclable spraying system stops spraying water to the construction site, waste of water resources is avoided, manual supervision is not needed, manpower is greatly reduced, and cost is reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a partial structure of the spray frame of the present invention;
FIG. 3 is an automatic spray flow diagram of the present invention;
the names of the parts indicated by the numerical references in the above figures are as follows: the device comprises a high-pressure water pump 1, a water feeding pipe 2, a main spraying pipe 3, a spraying frame 4, a baffle 4-1, a fastening piece 4-2, a baffle hole 4-3, a spraying branch pipe 4-4, an atomizing nozzle 4-5, a surrounding baffle 5, a water collecting tank 6, a second filter screen 7, a water collecting tank 8 and an electromagnetic valve 9.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
Referring to fig. 1-3, an automatic environment-friendly spraying dust-settling device for a construction site enclosure comprises a data acquisition sensor, a control end and a circulating spraying system;
the recyclable spraying system comprises a high-pressure water pump 1, a water feeding pipe 2, a spraying main pipe 3, a spraying frame 4, a baffle 5, a water collecting tank 8 and an electromagnetic valve 9; the high-pressure water pump 1 is internally provided with a sensor, so that the pressure applied by the high-pressure water pump 1 is controlled through a control end, and the spraying amount of the atomizing nozzles 4-5 can be further controlled; one end of the high-pressure water pump 1 is connected with the water collecting tank 8, and the other end of the high-pressure water pump is fixedly connected with the upper water pipe 2; the upper water pipe 2 is fixedly connected and communicated with the horizontally arranged spraying main pipe 3 through a three-way joint, and the electromagnetic valve 9 is arranged on the upper water pipe 2; the spray frame 4 comprises a baffle 4-1, a fastener 4-2, a baffle hole 4-3, a spray branch pipe 4-4 and an atomizing nozzle 4-5; the baffle 4-1 is of a semi-surrounding structure with an opening at one side, the top surface of the baffle 4-1 is a plate body capable of extending and contracting reversely towards the inside of a construction site, the range of the baffle is adjusted according to the size of spray, and the baffle 4-1 is fixedly connected to the spray main pipe 3; the baffle hole 4-3 is formed in the bottom surface of the baffle 4-1, a fastening piece 4-2 is arranged on the baffle hole 4-3, and the baffle 4-1 is fixed on the spray main pipe 3 through the fastening piece 4-2; one end of the spray branch pipe 4-4 penetrates through the baffle hole 4-3 to be fixedly connected with the spray main pipe 3 through a three-way joint, the other end of the spray branch pipe penetrates through the fastening piece 4-2 to be positioned in the baffle 4-1, and the atomizing spray head 4-5 is fixedly connected to the spray branch pipe 4-4; the lower side of the main spray pipe 3 is fixedly connected with an enclosure 5, a water collecting tank 6 is installed at one side, facing a construction site, of the lower end of the enclosure 5, on one hand, the water collecting tank 6 can collect part of water resources sprayed by the atomizing nozzles 4-5, and can also collect rainwater and underground water discharged by excavation of a foundation pit, the collected water resources flow into a water collecting tank 8 through the water collecting tank 6, the cross section of the water collecting tank 6 is U-shaped, and a first filter screen is arranged at the top end of the water collecting tank 6 to prevent sundries from entering the water collecting tank 8; the water collection tank 8 is placed in the below of enclosing fender 5, the inside horizontal installation of water collection tank 8 has second filter screen 7, avoids debris to get into circulation system, still be provided with water level monitoring system in the water collection tank 8, water level monitoring system contains the ball-cock assembly, and when the water level dropped to the setting value, the ball-cock assembly was automatic to be opened, adopts municipal water supply pipe network water supply system to carry out the moisturizing to avoid collecting the problem that the water yield is not enough.
The water feeding pipe 2, the spraying main pipe 3 and the spraying branch pipes 4-4 are all PVC water feeding pipes, and have the advantages of small self weight of the pipes, convenient installation and disassembly, low manufacturing cost and the like.
The data acquisition sensor comprises an environment monitor and a GPRS wireless transmission module, the environment monitor monitors the concentration of inhalable particles in a monitoring range, the GPRS wireless transmission module transmits the numerical value of the concentration of the inhalable particles to a control end, the control end is provided with an early warning value of the numerical value of the concentration of the inhalable particles, when the transmitted numerical value of the concentration of the inhalable particles exceeds the early warning value, the GPRS wireless transmission module transmits a signal to a signal receiver in a high-pressure water pump 1, the high-pressure water pump 1 is opened, an electromagnetic valve 9 is simultaneously opened, the high-pressure water pump 1 pumps a water source from a water collecting tank 8 to a spray main pipe 3, water is respectively conveyed to each spray branch pipe 4-4 from the spray main pipe 3, and is finally sprayed out from an atomizing spray nozzle 4-5 for spraying and dust falling, and the baffle 4-1 plays a role in blocking, therefore, the moisture cannot fall into the sidewalk behind; the water scattered in the air after being sprayed or contacted with the baffle 5 flows into the water collecting tank 6 and finally flows into the water collecting tank 8, or directly falls into the water collecting tank 8, so that the water is recycled; and when the concentration of inhalable particles is monitored to be lower than the early warning value within 10 minutes continuously, the control end closes the circulating spraying system and stops the circulating spraying system from spraying water to the construction site.
It should be noted that the terms "upper", "lower", "left", "right", "front", "back", etc. used in the present invention are for clarity of description only, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not limited by the technical contents of the essential changes.
The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may be made by those skilled in the art without departing from the principle of the invention.
Claims (10)
1. An automatic environment-friendly spraying dust-settling device for a construction site enclosure is characterized by comprising a data acquisition sensor, a control end and a recyclable spraying system; the data acquisition sensor comprises an environment monitor and a GPRS wireless transmission module, the environment monitor monitors the concentration of inhalable particles in a monitoring range, the value of the concentration of the inhalable particles is transmitted to the control end through the GPRS wireless transmission module, the control end is provided with an early warning value of the concentration of the inhalable particles, when the transmitted value of the concentration of the inhalable particles exceeds the early warning value, the control end starts the circulating spraying system, and the circulating spraying system sprays water to the construction site.
2. The automatic environment-friendly spraying dust-settling device as claimed in claim 1, wherein after the recyclable spraying system is started, when the concentration of inhalable particles is monitored to be lower than the early warning value for 10 minutes continuously, the control end closes the recyclable spraying system, and the recyclable spraying system stops spraying water to a construction site.
3. The automatic environment-friendly spraying dust-settling device as claimed in claim 1, wherein the recyclable spraying system comprises a high-pressure water pump (1), a water supply pipe (2), a spraying main pipe (3), a spraying frame (4), a fence (5), a water collecting tank (8) and an electromagnetic valve (9);
one end of the high-pressure water pump (1) is connected with the water collecting tank (8), and the other end of the high-pressure water pump is fixedly connected with the water feeding pipe (2); the water supply pipe (2) is fixedly connected and communicated with a horizontally arranged spraying main pipe (3), and the electromagnetic valve (9) is arranged on the water supply pipe (2); the spraying frame (4) comprises a baffle (4-1), the baffle (4-1) is a semi-surrounding structure with an opening facing one side of a construction site, and the baffle (4-1) is fixedly connected to the spraying main pipe (3); the lower side of the spraying main pipe (3) is fixedly connected with a surrounding baffle (5).
4. The automatic environment-friendly spraying dust-settling device as claimed in claim 3, wherein the spraying frame (4) further comprises a fastener (4-2), a baffle hole (4-3), a spraying branch pipe (4-4) and an atomizing nozzle (4-5); the baffle hole (4-3) is formed in the bottom surface of the baffle (4-1), the fastener (4-2) is arranged on the baffle hole (4-3), and the baffle (4-1) is fixed on the spray main pipe (3) through the fastener (4-2); one end of the spraying branch pipe (4-4) penetrates through the baffle hole (4-3) and is fixedly connected with the spraying main pipe (3), the other end of the spraying branch pipe penetrates through the fastening piece (4-2) and is positioned in the baffle (4-1), and the atomizing nozzle (4-5) is fixedly connected to the spraying branch pipe (4-4).
5. An automatic environment-friendly spraying dust-settling device as claimed in claim 3, wherein a water collecting tank (6) is installed at one side of the lower end of the enclosure (5) facing the construction site, an outlet of the water collecting tank (6) is positioned above the water collecting tank (8), the cross section of the water collecting tank (6) is U-shaped, and a first filter screen is arranged at the top end of the water collecting tank (6).
6. An automatic environmental protection spraying dust fall device according to claim 3, characterized in that the inside of the water collecting tank (8) is horizontally provided with a second filter screen (7).
7. An automatic environment-friendly spraying dust-settling device as claimed in claim 3, wherein a water level monitoring system is arranged in the water collecting tank (8), and the water level monitoring system comprises a ball float valve.
8. An automatic environment-friendly spraying dust-settling device as claimed in claim 3, wherein a sensor is arranged in the high-pressure water pump (1).
9. The automatic environment-friendly spraying dust-settling device as claimed in claim 3, wherein the water supply pipe (2), the main spraying pipe (3) and the branch spraying pipes (4-4) are all PVC water supply pipes.
10. An automatic environment-friendly spraying dust-settling device as claimed in claim 3, wherein the top surface of the baffle (4-1) is a plate body which can extend and contract towards the inside of a construction site in the opposite direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210069199.8A CN114570141A (en) | 2022-01-21 | 2022-01-21 | Construction site encloses fender and uses automatic environmental protection spraying dust device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210069199.8A CN114570141A (en) | 2022-01-21 | 2022-01-21 | Construction site encloses fender and uses automatic environmental protection spraying dust device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114570141A true CN114570141A (en) | 2022-06-03 |
Family
ID=81771074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210069199.8A Pending CN114570141A (en) | 2022-01-21 | 2022-01-21 | Construction site encloses fender and uses automatic environmental protection spraying dust device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114570141A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5713970A (en) * | 1995-12-28 | 1998-02-03 | Raring; David L. | Multi-chambered scrubbing apparatus for dust control |
| CN108646601A (en) * | 2018-05-15 | 2018-10-12 | 安徽天卓信息技术有限公司 | A kind of wisdom building site atomizing spray control system based on Internet of Things |
| CN208878866U (en) * | 2018-09-30 | 2019-05-21 | 中建交通建设集团有限公司 | A kind of fugitive dust automatic control system |
| CN213287328U (en) * | 2020-09-02 | 2021-05-28 | 王永刚 | Environment-friendly water-saving spraying device for building construction |
| CN112957851A (en) * | 2021-02-04 | 2021-06-15 | 山东莱芜建设集团有限公司 | Environment-friendly building construction dust-settling method |
| CN214345259U (en) * | 2021-01-27 | 2021-10-08 | 中铁十二局集团第二工程有限公司 | Fence dustproof spraying device |
| KR20210126262A (en) * | 2020-04-10 | 2021-10-20 | 박영인 | Fine dust reduction system |
-
2022
- 2022-01-21 CN CN202210069199.8A patent/CN114570141A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5713970A (en) * | 1995-12-28 | 1998-02-03 | Raring; David L. | Multi-chambered scrubbing apparatus for dust control |
| CN108646601A (en) * | 2018-05-15 | 2018-10-12 | 安徽天卓信息技术有限公司 | A kind of wisdom building site atomizing spray control system based on Internet of Things |
| CN208878866U (en) * | 2018-09-30 | 2019-05-21 | 中建交通建设集团有限公司 | A kind of fugitive dust automatic control system |
| KR20210126262A (en) * | 2020-04-10 | 2021-10-20 | 박영인 | Fine dust reduction system |
| CN213287328U (en) * | 2020-09-02 | 2021-05-28 | 王永刚 | Environment-friendly water-saving spraying device for building construction |
| CN214345259U (en) * | 2021-01-27 | 2021-10-08 | 中铁十二局集团第二工程有限公司 | Fence dustproof spraying device |
| CN112957851A (en) * | 2021-02-04 | 2021-06-15 | 山东莱芜建设集团有限公司 | Environment-friendly building construction dust-settling method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR102166681B1 (en) | Clean load system with remote control function | |
| CN104631547A (en) | Rainwater collecting system | |
| CN210905421U (en) | Building site encloses fender and sprays dust fall system | |
| CN106837405B (en) | A kind of underground mine returnairshaft waste air demisting dust falling system | |
| CN210827738U (en) | Municipal administration is with dirty diverging device of rain | |
| KR102166679B1 (en) | Improved clean load system | |
| CN114570141A (en) | Construction site encloses fender and uses automatic environmental protection spraying dust device | |
| CN208346702U (en) | A kind of highway isolating device | |
| CN206592148U (en) | The outer blowdown wind controlling device of underground mine returnairshaft | |
| CN214353192U (en) | Prefabricated T roof beam intelligence sprays maintenance system | |
| CN109372058A (en) | A kind of rain collector and collection method | |
| CN104818680A (en) | Cleaning device for solar municipal bridge guardrail and use method of cleaning device | |
| CN213527912U (en) | Atomizer for dust fall | |
| CN210059134U (en) | Security protection camera system for construction site | |
| CN209286918U (en) | A kind of guardrail spray system | |
| CN216320783U (en) | Building site control dust collecting equipment | |
| CN205530448U (en) | Rainwater device is collected to overhead road surface inlet for stom water | |
| CN218911698U (en) | Prevent flowing backward rain dirt diverging device | |
| CN218130754U (en) | Dust fall rail is used in public road bridge roof beam construction | |
| CN205604154U (en) | Spraying dedusting device based on retrieve rainwater | |
| CN216185029U (en) | A raise dust processing apparatus for ore mining | |
| CN214883356U (en) | Watering device for environmental improvement | |
| CN215164533U (en) | Urban pedestrian overpass | |
| CN211384310U (en) | Water mist dust suppression device | |
| CN219091524U (en) | Saving type road dust fall device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220603 |