CN110801695A - Full-automatic full-coverage spraying device - Google Patents

Full-automatic full-coverage spraying device Download PDF

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Publication number
CN110801695A
CN110801695A CN201911204502.5A CN201911204502A CN110801695A CN 110801695 A CN110801695 A CN 110801695A CN 201911204502 A CN201911204502 A CN 201911204502A CN 110801695 A CN110801695 A CN 110801695A
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CN
China
Prior art keywords
module
real
water
sensor
collecting tank
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
Application number
CN201911204502.5A
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Chinese (zh)
Inventor
杨日震
亢懿
石文远
翟晓东
张万峰
刘密林
李海卫
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Shanxi Industrial Equipment Installation Group Co Ltd
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Shanxi Industrial Equipment Installation Group Co Ltd
Priority date (The priority date 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 date listed.)
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Application filed by Shanxi Industrial Equipment Installation Group Co Ltd filed Critical Shanxi Industrial Equipment Installation Group Co Ltd
Priority to CN201911204502.5A priority Critical patent/CN110801695A/en
Publication of CN110801695A publication Critical patent/CN110801695A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D47/00Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D47/06Spray cleaning
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03BINSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B3/00Methods or installations for obtaining or collecting drinking water or tap water
    • E03B3/02Methods or installations for obtaining or collecting drinking water or tap water from rain-water
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03BINSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B3/00Methods or installations for obtaining or collecting drinking water or tap water
    • E03B3/06Methods or installations for obtaining or collecting drinking water or tap water from underground
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01WMETEOROLOGY
    • G01W1/00Meteorology
    • G01W1/02Instruments for indicating weather conditions by measuring two or more variables, e.g. humidity, pressure, temperature, cloud cover or wind speed
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00Programme-control systems
    • G05B19/02Programme-control systems electric
    • G05B19/418Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS], computer integrated manufacturing [CIM]
    • G05B19/4183Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS], computer integrated manufacturing [CIM] characterised by data acquisition, e.g. workpiece identification
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00Water conservation; Efficient water supply; Efficient water use
    • Y02A20/108Rainwater harvesting

Abstract

The invention discloses a full-automatic full-coverage spraying device, which comprises a water source system, wherein a water supply system is arranged on one side of the water source system, a control system is arranged on one side of the water supply system, which is far away from the water source system, a conversion circuit is arranged below the control system, and a sensor system is arranged on one side of the conversion circuit; the invention has the advantages that through arranging the sensor system, the conversion circuit, the control system, the water source system, the water supply system, the water pump, the motor and the spraying system, various structures are mutually matched, the system has high practicability, comprehensive functions and flow operation, and can meet the actual requirements of dust prevention and dust fall field spraying; the control system comprises a weather station, a central computer, a satellite station, a sub-controller and an electromagnetic valve, so that the device has flexible functions and authority control, the function setting and the authority control are organically combined, the hierarchical management can be realized, and the operation is simple and convenient.

Description

Full-automatic full-coverage spraying device
Technical Field
The invention belongs to the technical field of research and application of dust-settling spraying systems in construction sites, and particularly relates to a full-automatic full-coverage spraying device.
Background
In recent years, strict standardization management of construction site dust control work needs a large amount of manpower and material resources, the demand for water sources is quite large, and a construction site automatic spraying system is a new construction dust control technology and aims to solve the technical problem that how to collect rainwater and wastewater on a construction site and use the rainwater and the wastewater to achieve the purpose of dust control in the prior art.
Disclosure of Invention
To solve the problems set forth in the background art described above. The invention provides a full-automatic full-coverage spraying device which has the characteristics of dust fall, dust prevention, energy conservation and water conservation.
In order to achieve the purpose, the invention provides the following technical scheme: a full-automatic full-coverage spraying device comprises a water source system, wherein a water supply system is installed on one side of the water source system, a control system is installed on one side, away from the water source system, of the water supply system, a conversion circuit is installed below the control system, a sensor system is installed on one side of the conversion circuit, a monitoring control system is installed on the other side of the conversion circuit, a water pump is installed on one side, away from the water supply system, of the control system, a motor is installed above the water pump, and a spraying system is installed on one side, away from the control system, of the motor;
the water source system comprises a rainwater collecting pool, a waste water collecting pool and a construction underground water collecting pool, wherein the waste water collecting pool is fixed below the rainwater collecting pool, and the construction underground water collecting pool is installed on one side of the waste water collecting pool, which is far away from the rainwater collecting pool;
the water supply system comprises a control cabinet, a water outlet pipe, a collecting pool, a water inlet pipe and a control valve, wherein one side of the collecting pool is connected with the water outlet pipe, the other side of the collecting pool is connected with the water inlet pipe, the water outlet pipe and the water inlet pipe are both provided with the control valve, and the control cabinet is fixed above the collecting pool;
the control system comprises a weather station, a central computer, a satellite station, sub-controllers and electromagnetic valves, wherein the central computer is installed on one side of the weather station, the satellite station is installed on one side, away from the weather station, of the central computer, the sub-controllers are installed on one side, away from the central computer, of the satellite station, and the electromagnetic valves are installed on one sides, away from the satellite station, of the sub-controllers;
the spraying system comprises a main pipeline, branch pipelines, maintenance valves and spray heads, wherein one side of the main pipeline is connected with a plurality of branch pipelines, the maintenance valves are mounted on the plurality of branch pipelines, and the spray heads are connected to one ends of the plurality of branch pipelines far away from the main pipeline;
the monitoring control system comprises a DCS real-time detection system function module, a real-time data acquisition function module, a real-time sending module, a real-time data receiving module, a graph editing module, a system configuration module, a process dynamic monitoring module and a system process recording and processing module, wherein the real-time data acquisition function module is installed below the DCS real-time detection system function module, the real-time sending module is fixed below the real-time data acquisition function module, the real-time data receiving module is connected below the real-time sending module, and the system process recording and processing module, the process dynamic monitoring module, the system configuration module and the graph editing module are respectively installed below the real-time data receiving module from left to right;
the sensor system comprises a dust sensor, a temperature and humidity sensor, a wind speed and direction sensor, a liquid level sensor, a pressure sensor and an embedded module, wherein the temperature and humidity sensor is connected below the dust sensor, the wind speed and direction sensor is installed below the temperature and humidity sensor, the liquid level sensor is fixed below the wind speed and direction sensor, the pressure sensor is installed below the liquid level sensor, and the embedded module is connected to one side of the pressure sensor.
Preferably, a multistage sedimentation filtering structure is arranged in the collecting tank.
Preferably, the pipe diameter range of the main pipeline is 20 mm.
Preferably, the branch pipeline is arranged in a branch pipe network.
Preferably, the spray head is a multi-angle rotating spray head.
Preferably, the arrangement mode of the spray heads comprises three modes of single-row cross arrangement, triangular belt arrangement and square annular arrangement.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention has the advantages that through arranging the sensor system, the conversion circuit, the control system, the water source system, the water supply system, the water pump, the motor and the spraying system, various structures are mutually matched, the system has high practicability, comprehensive functions and flow operation, and can meet the actual requirements of dust prevention and dust fall field spraying.
2. The control system comprises a weather station, a central computer, a satellite station, a sub-controller and an electromagnetic valve, and various structures are mutually matched, so that the device has flexible functions and authority control, the function setting and the authority control are organically combined, the hierarchical management can be realized, the operation is simple and convenient, and the purposes of saving energy and water can be achieved.
3. The DCS real-time detection system comprises a DCS real-time detection system function module, a real-time data acquisition function module, a real-time sending module, a real-time data receiving module, a graph editing module, a system configuration module, a process dynamic monitoring module and a system process recording and processing module, and various structures are matched with each other, so that a maintenance environment can be automatically formed, monitoring objects and corresponding data can be timely changed in use, and the DCS real-time detection system has good market popularization force.
Drawings
FIG. 1 is a schematic diagram of the workflow of the present invention;
FIG. 2 is a schematic diagram of the water source system of the present invention;
FIG. 3 is a schematic view of the structure of the water supply system of the present invention;
FIG. 4 is a schematic structural diagram of a control system according to the present invention;
FIG. 5 is a schematic view of the spraying system of the present invention;
FIG. 6 is a schematic diagram of a monitoring operating system according to the present invention;
FIG. 7 is a schematic diagram of the sensor system of the present invention;
in the figure: 1. a water source system; 11. a rainwater collection tank; 12. a wastewater collection tank; 13. constructing an underground water collecting tank; 2. a water supply system; 21. a control cabinet; 22. a water outlet pipe; 23. a pooling pool; 24. a water inlet pipe; 25. a control valve; 3. a control system; 31. a weather station; 32. a central computer; 33. a satellite station; 34. a sub-controller; 35. an electromagnetic valve; 4. a water pump; 5. an electric motor; 6. a spraying system; 61. a main pipeline; 62. branch pipelines; 63. a service valve; 64. a spray head; 7. monitoring the control system; 71. DCS real-time detection system function module; 72. a real-time data acquisition function module; 73. a real-time sending module; 74. a real-time data receiving module; 75. a graph editing module; 76. a system configuration module; 77. a process dynamic monitoring module; 78. a system process recording and processing module; 8. a conversion circuit; 9. a sensor system; 91. a dust sensor; 92. a temperature and humidity sensor; 93. a wind speed and direction sensor; 94. a liquid level sensor; 95. a pressure sensor; 96. and an embedded module.
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-7, the present invention provides the following technical solutions: a full-automatic full-coverage spraying device comprises a water source system 1, wherein a water supply system 2 is installed on one side of the water source system 1, a control system 3 is installed on one side, away from the water source system 1, of the water supply system 2, a conversion circuit 8 is installed below the control system 3, a sensor system 9 is installed on one side of the conversion circuit 8, a monitoring control system 7 is installed on the other side of the conversion circuit 8, a water pump 4 is installed on one side, away from the water supply system 2, of the control system 3, a motor 5 is installed above the water pump 4, and a spraying system 6 is installed on one side, away from the control system 3, of;
the water source system 1 comprises a rainwater collecting tank 11, a wastewater collecting tank 12 and a construction underground water collecting tank 13, wherein the wastewater collecting tank 12 is fixed below the rainwater collecting tank 11, and the construction underground water collecting tank 13 is installed on one side of the wastewater collecting tank 12, which is far away from the rainwater collecting tank 11;
the water supply system 2 comprises a control cabinet 21, a water outlet pipe 22, a collecting tank 23, a water inlet pipe 24 and a control valve 25, wherein in order to filter the collected water source, in the embodiment, preferably, a multi-stage sedimentation filtering structure is arranged inside the collecting tank 23, one side of the collecting tank 23 is connected with the water outlet pipe 22, the other side of the collecting tank 23 is connected with the water inlet pipe 24, the control valve 25 is respectively arranged on the water outlet pipe 22 and the water inlet pipe 24, and the control cabinet 21 is fixed above the collecting tank 23;
the control system 3 comprises a weather station 31, a central computer 32, a satellite station 33, sub-controllers 34 and electromagnetic valves 35, wherein the central computer 32 is installed on one side of the weather station 31, the satellite station 33 is installed on one side, away from the weather station 31, of the central computer 32, the sub-controllers 34 are installed on one side, away from the central computer 32, of the satellite station 33, and the electromagnetic valves 35 are installed on one sides, away from the satellite station 33, of the sub-controllers 34;
the sprinkler system 6 comprises a main conduit 61, a branch conduit 62, a service valve 63 and a spray head 64, wherein, in order to provide better use effect for the main pipe 61, in this embodiment, preferably, the pipe diameter of the main pipe 61 ranges from 20mm to 60mm, one side of the main pipe 61 is connected with a plurality of branch pipes 62, in order to facilitate the spraying operation, in this embodiment, preferably, the branch pipes 62 are arranged in a branch pipe network, the plurality of branch pipes 62 are all provided with the maintenance valve 63, one ends of the plurality of branch pipes 62 far away from the main pipe 61 are all connected with the spray heads 64, in order to provide a better use effect of the spray head 64, in this embodiment, it is preferable that the spray head 64 is a multi-angle rotating spray head, in order to be suitable for different construction sites, in the present embodiment, preferably, the spray heads 64 are arranged in three forms, i.e., a single-row cross arrangement, a triangular belt arrangement, and a square ring arrangement;
the monitoring control system 7 comprises a DCS real-time detection system function module 71, a real-time data acquisition function module 72, a real-time sending module 73, a real-time data receiving module 74, a graph editing module 75, a system configuration module 76, a process dynamic monitoring module 77 and a system process recording and processing module 78, wherein the real-time data acquisition function module 72 is installed below the DCS real-time detection system function module 71, the real-time sending module 73 is fixed below the real-time data acquisition function module 72, the real-time data receiving module 74 is connected below the real-time sending module 73, and the system process recording and processing module 78, the process dynamic monitoring module 77, the system configuration module 76 and the graph editing module 75 are respectively installed below the real-time data receiving module 74 from left to right;
the sensor system 9 comprises a dust sensor 91, a temperature and humidity sensor 92, a wind speed and direction sensor 93, a liquid level sensor 94, a pressure sensor 95 and an embedded module 96, wherein the temperature and humidity sensor 92 is connected below the dust sensor 91, the wind speed and direction sensor 93 is installed below the temperature and humidity sensor 92, the liquid level sensor 94 is fixed below the wind speed and direction sensor 93, the pressure sensor 95 is installed below the liquid level sensor 94, and the embedded module 96 is connected to one side of the pressure sensor 95.
The working principle and the using process of the invention are as follows: in the using process of the invention, a sensor system 9 monitors a plurality of groups of meteorological elements (a dust raising sensor 91 monitors the dust raising condition of a construction site, a temperature and humidity sensor 92 monitors the temperature and humidity of the construction site, a wind speed and direction sensor 93 monitors the wind speed and the wind direction of the construction site, a liquid level sensor 94 monitors the soil humidity condition of the construction site, a pressure sensor 95 monitors the pressure condition of the construction site, other sensors can be added according to the actual construction site condition for monitoring), the monitoring data is transmitted to a conversion circuit 8 through an embedded module 96, the data is transmitted to a meteorological station 31 in real time through a wireless receiving module after being converted by the conversion circuit 8, the meteorological station 31 transmits the data to a central computer 32 through the wireless receiving module, the central computer 32 analyzes the meteorological data and then issues instructions to a satellite station 33 according to different meteorological conditions, after receiving the instruction, the satellite station 33 selectively issues the instruction to the single branch controller 34 or the multiple branch controllers 34 according to the situation, the single branch controller 34 or the multiple branch controllers 34 control the corresponding electromagnetic valves 35 to act, simultaneously, the water pump 4 and the motor 5 are matched to introduce the water in the collecting tank 23 (the water in the collecting tank 23 is introduced through the rainwater collecting tank 11, the wastewater collecting tank 12 and the construction groundwater collecting tank 13 via the water inlet pipe 24, and in the process of introduction or extraction, the water flow of the water inlet pipe 24 and the water outlet pipe 22 is controlled by controlling the control valve 25 via the control cabinet 21, and in the process of extraction, the water source is filtered by the multistage sedimentation structure to avoid blocking the pipeline) and is introduced into the main pipe 61 via the water outlet pipe 22, and then enters the single branch pipeline 62 or the multiple branch pipelines 62 (the branch pipeline 62 with the electromagnetic valve 35 opened) via the main pipe 61, and finally enters the single spray head 64 or the multiple spray heads 64 via the single branch pipeline 62 or the multiple branch pipelines, therefore, automation and accurate control of dust prevention and dust fall sites are realized, water conservation is facilitated, the monitoring control system 7 monitors in real time in the control process, and through the mutual cooperation of the DCS real-time detection system function module 71, the real-time data acquisition function module 72, the real-time sending module 73, the real-time data receiving module 74, the graph editing module 75, the system configuration module 76, the process dynamic monitoring module 77 and the system process recording and processing module 78, the maintenance environment is automatically formed, meanwhile, monitoring objects and corresponding data can be timely changed in use, and the device has good market popularization force.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a full-automatic full coverage spray set, includes water source system (1), its characterized in that: a water supply system (2) is installed on one side of the water source system (1), a control system (3) is installed on one side, far away from the water source system (1), of the water supply system (2), a conversion circuit (8) is installed below the control system (3), a sensor system (9) is installed on one side of the conversion circuit (8), a monitoring control system (7) is installed on the other side of the conversion circuit (8), a water pump (4) is installed on one side, far away from the water supply system (2), of the control system (3), a motor (5) is installed above the water pump (4), and a spraying system (6) is installed on one side, far away from the control system (3), of the motor (5);
the water source system (1) comprises a rainwater collecting tank (11), a waste water collecting tank (12) and a construction underground water collecting tank (13), wherein the waste water collecting tank (12) is fixed below the rainwater collecting tank (11), and the construction underground water collecting tank (13) is installed on one side, away from the rainwater collecting tank (11), of the waste water collecting tank (12);
the water supply system (2) comprises a control cabinet (21), a water outlet pipe (22), a collecting pool (23), a water inlet pipe (24) and a control valve (25), wherein the water outlet pipe (22) is connected to one side of the collecting pool (23), the water inlet pipe (24) is connected to the other side of the collecting pool (23), the control valves (25) are mounted on the water outlet pipe (22) and the water inlet pipe (24), and the control cabinet (21) is fixed above the collecting pool (23);
the control system (3) comprises a weather station (31), a central computer (32), a satellite station (33), sub-controllers (34) and electromagnetic valves (35), wherein the central computer (32) is installed on one side of the weather station (31), the satellite station (33) is installed on one side, away from the weather station (31), of the central computer (32), the sub-controllers (34) are installed on one side, away from the central computer (32), of the satellite station (33), and the electromagnetic valves (35) are installed on one sides, away from the satellite station (33), of the sub-controllers (34);
the spraying system (6) comprises a main pipeline (61), branch pipelines (62), maintenance valves (63) and spray heads (64), wherein one side of the main pipeline (61) is connected with a plurality of branch pipelines (62), the maintenance valves (63) are arranged on the plurality of branch pipelines (62), and the spray heads (64) are connected to one ends, far away from the main pipeline (61), of the plurality of branch pipelines (62);
the monitoring control system (7) comprises a DCS real-time detection system function module (71), a real-time data acquisition function module (72), a real-time sending module (73), a real-time data receiving module (74), a graph editing module (75), a system configuration module (76), a process dynamic monitoring module (77) and a system process recording and processing module (78), wherein the real-time data acquisition function module (72) is installed below the DCS real-time detection system function module (71), the real-time sending module (73) is fixed below the real-time data acquisition function module (72), the real-time data receiving module (74) is connected below the real-time sending module (73), and the system process recording and processing module (78), the process dynamic monitoring module (77) and the real-time data receiving module (74) are respectively installed below the real-time data receiving module (74) from left to right, A system configuration module (76) and a graphics editing module (75);
sensor system (9) are including raise dust sensor (91), temperature and humidity sensor (92), wind speed and direction sensor (93), level sensor (94), pressure sensor (95) and embedded module (96), wherein, the below of raise dust sensor (91) is connected with temperature and humidity sensor (92), wind speed and direction sensor (93) are installed to the below of temperature and humidity sensor (92), the below of wind speed and direction sensor (93) is fixed with level sensor (94), pressure sensor (95) are installed to the below of level sensor (94), one side of pressure sensor (95) is connected with embedded module (96).
2. The fully automatic and fully covered spray system according to claim 1, wherein: and a multistage sedimentation filtering structure is arranged in the collecting tank (23).
3. The fully automatic and fully covered spray system according to claim 1, wherein: the pipe diameter range of the main pipe (61) is 20-60 mm.
4. The fully automatic and fully covered spray system according to claim 1, wherein: the branch pipelines (62) are arranged in a branch pipe network.
5. The fully automatic and fully covered spray system according to claim 1, wherein: the spray head (64) is a multi-angle rotary spray head.
6. The fully automatic and fully covered spray system according to claim 1, wherein: the arrangement modes of the spray heads (64) include a single-row crossed arrangement mode, a triangular belt arrangement mode and a square annular arrangement mode.
CN201911204502.5A 2019-11-29 2019-11-29 Full-automatic full-coverage spraying device Pending CN110801695A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112012150A (en) * 2020-08-07 2020-12-01 北京科技大学 Pressure self-balancing self-adaptive dust suppression system for deep-concave open-pit transportation road

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205958998U (en) * 2016-08-17 2017-02-15 河南省郑州水利学校 Execute online dust fall system in industrial area ground
CN207277494U (en) * 2017-07-21 2018-04-27 中建八局第一建设有限公司 A kind of automatic spray depositing dust cooling system of water circulation use
CN108636641A (en) * 2018-05-18 2018-10-12 中建八局第二建设有限公司 A kind of system and its construction method for removing haze to construction site depositing dust
CN211189559U (en) * 2019-11-29 2020-08-07 山西省工业设备安装集团有限公司 Full-automatic full-coverage spraying device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205958998U (en) * 2016-08-17 2017-02-15 河南省郑州水利学校 Execute online dust fall system in industrial area ground
CN207277494U (en) * 2017-07-21 2018-04-27 中建八局第一建设有限公司 A kind of automatic spray depositing dust cooling system of water circulation use
CN108636641A (en) * 2018-05-18 2018-10-12 中建八局第二建设有限公司 A kind of system and its construction method for removing haze to construction site depositing dust
CN211189559U (en) * 2019-11-29 2020-08-07 山西省工业设备安装集团有限公司 Full-automatic full-coverage spraying device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112012150A (en) * 2020-08-07 2020-12-01 北京科技大学 Pressure self-balancing self-adaptive dust suppression system for deep-concave open-pit transportation road

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