35results about How to "Improve dust suppression efficiency" patented technology

This invention discloses a low-temperature carbon dioxide high-expansion foam dust suppression system and method for ore pass unloading. The dust suppression system includes a first high-expansion foam generator and a second high-expansion foam generator at the ore pass unloading port and ore bin, respectively. A foaming dust suppressant is mixed with inert carbon dioxide gas and a sulfide ore inhibitor to create foam with both dust suppression and ore spontaneous combustion inhibition properties. Because the foam contains an ore inhibitor, the spontaneous combustion tendency of ore dust upon contact with the foam is effectively reduced. Simultaneously, after the foam bursts, the low-temperature carbon dioxide gas within it lowers the ambient temperature and oxygen concentration within the ore pass, creating a low-temperature, low-oxygen environment and reducing the risk of ore spontaneous combustion and agglomeration within the ore pass. Furthermore, the low-temperature carbon dioxide generates natural convection, inducing airflow within the ore pass and accelerating foam diffusion. Therefore, this invention's low-temperature carbon dioxide high-expansion foam dust suppression system achieves synergistic prevention and control of dust and ore spontaneous combustion within the ore pass.

The utility model discloses a dust falling device for stainless steel composite board welding, including sewage mechanism and dust falling mechanism, dust falling mechanism includes dust falling box, explosion door, water storage tank, water inlet pipe, water spray board, a plurality of sprayers, fixed plate, lift cylinder, bottom plate, motor box, clamping box, clamping groove, waterproof motor, bidirectional screw rod, sliding block, clamping plate, small sliding block and waterproof cloth, and the drive of waterproof motor to bidirectional screw rod makes clamping plate clamps composite board, and rotates under the drive of motor box after being taken up by lift cylinder, can let the front and back of composite board can all be sprayed to water, and sewage mechanism includes sewage plate, sewage guide groove, sewage groove, sewage pipe, electromagnetic valve, top plate and grating plate, and the sewage after dust falling is guided under the grating plate in sewage guide groove and sewage groove and is discharged through sewage pipe, effectively carries out unified collection and processing to sewage, avoids the influence outside environment. The scheme improves dust falling efficiency and sewage treatment efficiency greatly.

This utility model relates to the technical field of spray dust suppression devices, and discloses a spray dust suppression device for a roadheader. It includes a threaded head, a water supply pipe fixedly installed at the bottom of the threaded head, a branch pipe fixedly installed at the bottom of the water supply pipe, and a three-stage mist particle covering dust suppression mechanism fixedly installed at the end of the branch pipe away from the water supply pipe. This roadheader spray dust suppression device, through its three-stage mist particle covering dust suppression mechanism, utilizes three high-pressure atomizing nozzles (a first, second, and third nozzles) with different angles and layouts. High-pressure atomizing nozzle a first nozzle blocks upward-rising dust, high-pressure atomizing nozzle a second nozzle captures dust escaping from the edges, and high-pressure atomizing nozzle a third nozzle forms a three-dimensional interception barrier. The three nozzles complement each other in their coverage, effectively covering and suppressing dust in the area above and to the sides of the conveyor belt, while simultaneously blocking dust escape channels, thus improving the overall dust suppression efficiency of the roadheader's transport section.

The utility model is applicable to the technical field of construction environment governance, and provides a spraying device for highway construction, which comprises an isolation frame for isolating a highway construction area, and an anti-slip mat for increasing friction force is arranged at the bottom of the isolation frame; the baffles are installed on the two sides of the isolation frame, and a storage bin used for storing water is arranged between the baffles; the liquid discharge pipe is fixed on the isolation frame and extends into the water storage bin; the water pump is arranged in the water storage bin and is used for pumping water for dust falling; and a connecting pipe is arranged between the liquid discharge end of the water pump and the liquid inlet pipe of the liquid discharge pipe. According to the scheme, the spraying device for highway construction is large in liquid storage range, rainwater can be collected for dust falling while frequent water supplementing by personnel is not needed, the spraying device can also serve as an isolation fence of a construction site, and the influence on the construction site is small.

The utility model discloses a kind of mine underground automatic water mist spray dust fall systems, belong to mine dust removal technical equipment field, solve the existing mine underground dust removal mode not completely, water is easy to accumulate in dust removal process, there is the problem of big security risk.The utility model includes with the annular water pipe and PLC controller of mine top matching adaptation, multiple atomizing nozzles are evenly provided on annular water pipe, one end of annular water pipe is connected with water supply pipe, solenoid valve is equipped on water supply pipe, high-pressure pump is connected on water supply pipe, another end of annular water pipe is connected with drain pipe, multiple smoke dust sensors are also equipped on annular water pipe, PLC controller is connected with solenoid valve and smoke dust sensor.The utility model structure is simple, system is stable, can satisfy the requirement of dust fall in underground main roadway, sectional road, sectional ramp, fan station, application range is wide, especially suitable for underground main haulage roadway, air return, stope and other air quality bad working place, avoid dust pollution harm employee health.

The utility model discloses a concrete manufacturing dust treatment device which comprises a dust collection main box and square-opening right-angle air inlet pipes, and the square-opening right-angle air inlet pipes are connected to the two sides of the dust collection main box. The front end and the rear end of the dust collection main box are connected with air collection covers, one end of each air collection cover is connected with an air collection pipe, one end of each air collection pipe is connected with a front air box, the bottom end of each front air box is connected with a centrifugal fan, and a spraying dust falling mechanism is arranged at the bottom end of the dust collection main box. The centrifugal fan is driven, the air collecting pipe, the air collecting cover, the dust collecting main box and the square-opening right-angle air inlet pipe are matched so that dust in the concrete manufacturing process can be sucked into the dust collecting main box, dust removal is achieved, the filter screen is installed in the air collecting cover, and the filter screen is covered with the nylon fiber synthetic resin film. And dust is prevented from being sucked into the centrifugal fan.

The invention relates to the technical field of dust suppression devices, and discloses a dust suppression device for fiber composite material production, which comprises a dust suppression box body, a vibration mechanism and a disassembly mechanism, the outer surface of the dust suppression box body is fixedly connected with a support frame, the vibration mechanism is arranged in the dust suppression box body, and the disassembly mechanism is arranged at the bottom of the dust suppression box body. By arranging the vibration mechanism, specifically, after a motor is started, an eccentric rod drives rotating discs on the two sides to synchronously run, the eccentric rod slides in a sliding groove of a swing rod, the swing rod swings in a reciprocating mode, a top extrusion block extrudes an arc-shaped block at the bottom of a sliding rod, and the sliding rod is driven to move up and down in a fixed frame; when the dust suppression device works, an impact rod and an impact block are synchronously driven to move upwards to impact a first filter screen, a first spring and a second spring are compressed, and after an extrusion block is separated from an arc-shaped block, the first spring and the second spring respectively drive the impact block and a sliding rod to reset and continuously vibrate dust on the surface of the first filter screen, so that blockage of the first filter screen is reduced, and continuity of dust suppression work is improved.

The utility model relates to ball mill device technical field discloses a kind of ball mill devices for noble metal catalyst processing of convenient dust reduction, including outer tube and ball mill filter cylinder, the front and rear sidewalls of ball mill filter cylinder bearing are penetrated by outer tube, and the inside of ball mill filter cylinder is placed with multiple grinding steel balls, the surface of outer tube is fixedly installed with four support columns, and the bottom surface of support column is fixedly installed with bottom plate, the front sidewall center bearing of ball mill filter cylinder is penetrated and is provided with feed hopper, and feed hopper is fixedly installed on the top surface of bottom plate by straight rod, the bottom of outer tube is fixedly penetrated and is provided with guide chute, this ball mill device for noble metal catalyst processing of convenient dust reduction can effectively collect and handle the dust generated in ball milling process, reduce the harm of dust to the health of operator and pollution to working environment, while avoiding dust to influence the normal operation of other equipment, meet the demand of noble metal catalyst efficient processing.

This invention proposes a dust suppression system suitable for cold climates, comprising a chemical tank, a water supply pipeline, a mixer, a liquid storage tank, an air compressor, an air storage tank, a foaming tank, and a spraying device. The foaming outlet of the foaming tank is connected to the inlet of the spraying device via a pipeline, and the spraying device is located in the area to be suppressed. The advantages are: the foaming tank uses a low-pressure foaming principle to produce foam, which is then sprayed through spray nozzles to areas prone to dust generation, thereby achieving dust suppression. Simultaneously, since the coal conveyor belt vibrates during operation, it can cause secondary dust generation; the foam can form a continuous "covering film" above the belt, thus providing a continuous dust suppression effect. Due to the poor fluidity of the foam, it will not affect the working environment. By installing a dust detection probe and a spray nozzle at each belt transfer point, individual control of each spray valve is achieved, allowing for optimal dust control with minimal chemical dosage.

A kind of photovoltaic power station field dust fall device, including photovoltaic module, fixed support, hydraulic machine, dust removal rod and atomizing spray head.Lifting of dust removal rod is controlled by hydraulic machine, and top spray head sprays mist to remove dust.Dust suction hole is arranged in dust removal rod, is connected with negative pressure main pipe by air suction branch pipe, realizes dust suction function;Liquid supply system is connected with main pipe by branch pipe and spray head.Limiting ring is arranged between modules, and dust removal rod is slidably connected by rail clamping on both sides, to ensure stable operation.Bottom air inlet is connected with spiral air pipe and air suction branch pipe, and liquid delivery pipe is connected with liquid supply branch pipe by spiral liquid pipe.Controller realizes intelligent control by remote communication.The device has the advantages of simple structure, flexible extension, avoiding obstruction, dust suction and atomization collaborative operation, improving dust fall efficiency and power generation stability, energy saving and high efficiency, strong applicability.

The invention belongs to the technical field of dust suppression devices, and particularly provides a building engineering construction site dust suppression device which comprises a base, a water tank is arranged on the base, a power frame assembly is arranged in the center of the upper portion of the base, a dust collection assembly is arranged on the power frame assembly, and the outer side of the power frame assembly is sleeved with an adjustable spraying mechanism. According to the dust suppression device for the construction site of the constructional engineering, the spraying range can be adjusted according to the situation of the construction site, the adjustable spraying mechanism is arranged, the technical effect of flexible conversion between an omni-directional spraying range mode and a directional spraying range mode is achieved through combination of guiding of a circular track and the elastic effect of a reset spring, and the practicability is high. The spraying height and the spraying range are adjustable through the meshing structure; in addition, a negative pressure adsorption mode is adopted, and large-particle dust on the construction site is treated.

The utility model discloses a dust falling device, which relates to the related technical field of dust falling and comprises a filter box, a dust monitor is arranged at the bottom of the inner wall of the filter box, the outer wall of one side of the filter box is connected with one side of a control box, and a display screen is arranged on the other side of the control box. Protective covers which are symmetrically distributed are arranged at the top of the filter box, fan blades matched with the protective covers are arranged in the protective covers, the input ends of the fan blades are connected with one end of a transmission shaft matched with the fan blades, and an alternating current motor is arranged above the transmission shaft. According to the dust falling device, the dust concentration in air in the filter box can be detected through the dust monitor, the display screen can directly display detection data, the rotating speed of the alternating current motor is automatically adjusted according to the dust concentration in cooperation with the control box, the dust falling effect is guaranteed, meanwhile, energy consumption is reduced, and the operation cost is optimized; and the two alternating current motors operate to drive the two fan blades to operate, so that dust-containing air can be efficiently sucked into the equipment for treatment.

The invention relates to the technical field of dust falling, in particular to a dust falling device for blasting engineering, which comprises a walking vehicle, a first dust falling mechanism and a second dust falling mechanism, the first dust falling mechanism comprises a first liquid storage tank, a negative pressure dust removal assembly is arranged on the front wall face of the first liquid storage tank, and an outlet of the negative pressure dust removal assembly extends below the liquid level of liquid in the first liquid storage tank; the second dust falling mechanism comprises a second liquid storage tank arranged on the first liquid storage tank, an atomization assembly is movably arranged at the top end of the second liquid storage tank, and the atomization assembly atomizes and sprays out clear water in the second liquid storage tank; the atomization assembly communicates with the top end of the first liquid storage tank and is used for assisting water mist diffusion through recycled air. And the first liquid storage tank is communicated with the second liquid storage tank through a filtering assembly. Through the combined design of the walking vehicle, negative pressure dust removal and atomized water spraying, efficient and flexible blasting engineering dust falling is achieved, and the dust falling efficiency, the resource utilization rate and the maintainability of the device are improved.

This invention discloses a spray dust suppression structure for engineering construction, including a mobile vehicle and a liquid storage tank mounted on the mobile vehicle. The liquid storage tank contains a filter bucket, and a filter element is installed inside the filter bucket. A pipeline assembly is connected to the inside of the liquid storage tank via a water pump. The pipeline assembly is installed at the top of the filter bucket. The pipeline assembly, which runs through the filter element, connects to the inside of the liquid storage tank and the inner cavity of a sleeve. A scraper is connected to the second output end of a dual-axis motor. In this spray dust suppression structure for engineering construction, the filter element inside the filter bucket filters impurities from the water source. The mixed liquid is pumped into the filter bucket, which not only facilitates cleaning the filter element with the mixed liquid but also effectively blocks dust particles in the mixed liquid, reducing the problem of water quality degradation inside the storage tank. The dual-axis motor drives the scraper to rotate inside the filter bucket, facilitating the removal of impurities and reducing the need for frequent filter replacements, thus reducing maintenance costs.

The utility model discloses a spraying dust remover for cement production, which belongs to the technical field of spraying in cement production, and comprises a dust removal box and a spraying agent box, a motor is fixedly arranged at the bottom of the dust removal box, a filter plate is arranged in the dust removal box, the spraying dust remover further comprises a rotating rod, a rotating shaft and a rotating shaft, the motor is fixedly connected to the output end of the motor; according to the spraying dust remover for cement production, by starting an air blower, cement dust can be prevented from floating upwards and adhering to the inner wall of the top of the dust removal box after entering the dust removal box, the cement dust can be completely subjected to dust falling treatment, and meanwhile a motor drives a rotating rod to rotate; and a connecting rod is driven to drive a first trapezoidal block to rotate to abut against a second trapezoidal block, so that a sliding rod upwards drives an upper top plate to upwards jack the bottom of a filter plate, and the operation is repeated, so that continuous vibration of the filter plate is realized, the filter plate can be prevented from being blocked by a cement mixture, and improvement of the dust falling efficiency of cement dust is facilitated.

The utility model discloses a kind of wall spraying devices for building construction, it is related to building construction technical field, including rail and fence, the fence is arranged in the rail inside, and with the rail fixed connection.The utility model is cooperated by setting rail, fence, movable slot, placement slot, lifting assembly, screw rod, movable support, worm wheel, driving part, worm, handle, spray assembly, spray pipe, support seat, spray head and connecting conveying hose, to some extent, it is improved or solved that however, the height position of the spray pipe and the spray head is mostly fixed in the use process of the existing building construction wall spraying device, cannot be flexibly adjusted according to the distribution height of dust at construction site, when dust is concentrated in higher position, the spray range of spray head is limited by fixed height, the effect of spray dust reduction will be greatly discounted, directly affect dust reduction effect and flexibility in use.

The utility model discloses a dust raising prevention spraying device, and relates to the technical field of construction dust prevention, the dust raising prevention spraying device comprises a plurality of fence pieces which are arranged in a butt joint mode, a plurality of inserting pieces are installed at one ends of the fence pieces, a plurality of clamping pieces are fixedly connected to the fence pieces, the inserting pieces correspond to the clamping pieces, atomization pieces are installed on the fence pieces, and the clamping pieces are fixedly connected to the fence pieces. When flying dust prevention spraying work is carried out on a construction site, atomization spraying is carried out through the atomization piece, flying dust on the construction site can be treated, the surrounding flying dust condition is monitored in real time through the flying dust detection sensor in the period, and when it is monitored that the flying dust amount is increased, the auxiliary dust suppression piece is installed on the top of the enclosure piece. The auxiliary dust suppression part can be opened, sprays water mist in a swinging mode and is matched with the atomization part to further suppress the flying dust, the suppression range of the flying dust is expanded, the dust falling efficiency of the flying dust is improved, meanwhile, water mist output can be adjusted in real time according to the change of the field flying dust amount, and excessive waste of water resources is avoided.

The utility model discloses a dust falling device for carbon adsorption material production and processing, which comprises a fixed plate, the upper surface of the fixed plate is fixedly connected with a dust falling frame, the right side surface of the dust falling frame is fixedly communicated with a blow-off pipe, the outer surface of the blow-off pipe is fixedly communicated with a valve, and an air suction port of the dust falling frame is fixedly provided with an air suction cover. Through the cooperation of the exhaust fan and the air suction cover, dust can be efficiently sucked in, pollution is reduced, two water pumps are utilized to spray water mist from the spray type spray head through the water suction pipe, the connecting pipe, the first communicating pipe, the second communicating pipe and the spraying pipe, meanwhile, a water curtain is formed at the drainage groove, dust is settled after making contact with the water mist and the water curtain, and dust removal is achieved. The dust falling efficiency is remarkably improved through a multi-stage dust falling mechanism, the dust falling effect is conveniently and visually observed through an observation window and glass, by means of the arrangement of a blow-off pipe and a valve, the operation of blow-off and water injection can be flexibly controlled according to needs, it is guaranteed that dust makes full contact with water mist and a water curtain, and the dust falling effect is improved.

The utility model discloses a tea leaf refining processing dust falling device with recovery processing function, including support frame, one side of support frame top is equipped with two fixed base, is equipped with first threaded rod between two fixed base, first motor rotating shaft penetrates fixed base and is fixedly connected with first threaded rod, be equipped with first movable block on first threaded rod, first movable block is fixedly connected with fixed plate, the side of fixed plate away from support frame is equipped with movable frame, second motor rotating shaft penetrates movable frame and is fixedly connected with second threaded rod, be equipped with second movable block on second threaded rod, second movable block is fixedly connected with fixed plate, connecting plate is fixedly connected with air inlet groove. This kind of dust falling device simple structure can be according to the different position of dust production in the tea leaf processing process, accurately adjust the collection position of air inlet groove, greatly expands the dust collection range, improves dust falling efficiency.

The present application relates to the field of environmental protection dust reduction technology of construction engineering, and provides an energy-saving construction engineering dust control device, which comprises a vehicle frame, a spray gun, a water tank, moving wheels and a water supply assembly, the moving wheels are arranged at the bottom of the vehicle frame and used for moving the device, the water tank is fixed to the top of the vehicle frame, the water inlet end of the water supply assembly is communicated with the water tank, and the water outlet end of the water supply assembly is communicated with the spray gun, the spray gun is installed above the vehicle frame through an angle adjusting mechanism, and the spray gun is provided with an openable and closable protection mechanism at the mist outlet end. The present application has the following beneficial effects: the openable and closable protection mechanism is arranged at the mist outlet of the spray gun, a plurality of closed pieces can be used to close and seal the mist outlet when the device is stopped, foreign matters such as dust, sand and cement ash in the construction site are completely blocked from entering the interior of the spray gun, the problems of nozzle blockage and corrosion and damage of internal components are effectively avoided, and the failure rate and maintenance cost of the equipment are greatly reduced.

The utility model provides a porridge machine without blanking dust, which comprises a charging barrel, a material stirring sheet, a blanking disc, a spraying assembly and a material basin, the charging barrel is arranged right above the material basin, the blanking disc is arranged at the bottom of the charging barrel, a discharge port is arranged at the bottom of the blanking disc, the material stirring sheet is arranged in the blanking disc, the spraying assembly is arranged on the spraying assembly, and the spraying assembly is arranged on the spraying assembly. The spraying assembly is connected with the rotating assembly, the spraying assembly comprises an annular water conveying pipeline, a plurality of atomizing nozzles are arranged on the inner wall of the annular water conveying pipeline, and the atomizing nozzles are arranged towards a feed falling path; by the adoption of the technical scheme, the annular water conveying pipeline is additionally arranged on the outer side of the discharging disc, water mist is sprayed to wrap feed particles when feed falls, dust generation is effectively restrained, the water spraying amount is distributed to the atomization spray head and the water injection opening according to the proportion, and the dual functions of dust suppression and porridge mixing are achieved; the dust suppression device has the advantages of being simple in structure, high in dust suppression efficiency and low in improvement cost.

The invention relates to the related technical field of environmental sanitation cleaning, and particularly discloses a road surface deep cleaning and dust suppression integrated environmental sanitation washing and sweeping vehicle which comprises a shell cover, a main sweeping assembly and a secondary sweeping assembly. The secondary sweeping assemblies are arranged on the bearing plate in an annular array mode with the center of the main sweeping assembly as the circle center, the secondary sweeping assemblies can conduct dynamic lifting floating self-adjustment and overturning deviation self-adjustment, and deep cleaning can be conducted on an uneven road surface through cooperation of the secondary sweeping assemblies and the main sweeping assembly. According to the road surface deep cleaning and dust suppression integrated environmental sanitation washing and sweeping vehicle, dynamic lifting floating self-adjustment and overturning deviation self-adjustment are achieved, through multi-directional self-adaptive adjustment, the vehicle can be completely matched with fluctuation changes of a road surface, and the use requirement for deep cleaning of the road surface is met; and dust generated by raising in the cleaning process can be directly covered in all directions and instantly sucked in.

The utility model discloses a kind of intelligent circulation water dustproof noise reduction water curtain systems, comprising: precipitation well, intelligent controller, multistage filter, water curtain control system and end spraying device;Precipitation well, multistage filter and water curtain control system are sequentially connected;Precipitation well carries out collection to groundwater in subway station foundation pit, and is transported to multistage filter by water supply pipeline and is filtered and purified;Water curtain control system transports filtered and purified groundwater to end spraying device and sprays;Water curtain control system is connected with intelligent controller.The utility model compared with traditional artificial watering and fog cannon car and other dust reduction measures, the water curtain system of the utility model has the advantages of less investment, low cost, low carbon, zero noise, wide coverage, high dust reduction efficiency, while also solve the construction difficulties of poor air circulation in foundation pit, operating surface temperature higher.

The application relates to the technical field of tunnel energy-saving lighting, and discloses a tunnel dust-reducing energy-saving lighting device, which comprises a supporting rod and two mounting plates, the two mounting plates are symmetrically fixedly installed on the supporting rod, the outer wall of the supporting rod is symmetrically fixedly installed with lamp boxes, the inner wall of the lamp box is provided with a lamp plate, the supporting rod is symmetrically fixedly installed with a ventilation duct, and the inner wall of the ventilation duct is rotatably installed with a rotating shaft. The rotating shaft and the blade in the ventilation duct rotate, not only ensuring the gas circulation in the tunnel, but also driving the dust-reducing assembly by the linkage assembly, the atomizing nozzles in the dust-reducing assembly can rotate and change the atomizing range under the action of different centrifugal forces, the effective treatment of the dust in the tunnel is realized, the dust-reducing efficiency is improved, the dust-reducing range is ensured to be extensive, the dispersion of the dust in the tunnel is effectively avoided, and the driving safety in the tunnel is effectively ensured.

The utility model relates to cement retarder production technical field, and disclose a dust falling device for cement retarder production, including bottom plate, four universal wheels are fixedly connected in bottom plate bottom surface, push handle is fixedly connected in the right side surface of bottom plate, and the processing box is fixedly connected in the top surface of bottom plate, the processing box inside is provided with dust falling subassembly and stirring subassembly. Through dust falling subassembly, utilize dust absorption pipe and filter cartridge, inhale the dust into the water in processing box, utilize the weight gain effect of water fast settlement big particle dust, filter cartridge carries out secondary interception to fine dust simultaneously, significantly reduces dust overflow, compared with prior art, need not frequent spraying water mist can realize efficient dust falling, reduced water resource consumption, promoted the dust falling efficiency, and through motor drive filter cartridge continued rotation, cooperate cleaning brush automatic removal dust adhered to its surface, avoided the problem that traditional filter plate needs frequent dismounting and cleaning, greatly shortened maintenance time.

The invention relates to the technical field of construction air dust removal equipment, and discloses an air dust removal device for environmental protection engineering construction, the air dust removal device comprises a base, the top of the base is rotatably connected with an adjusting frame through a bearing, the inner wall of the adjusting frame is rotatably connected with a protective sleeve through a rotating shaft, and a flow guide mechanism is arranged in the protective sleeve; the flow guide mechanism comprises a guide plate; the outer wall of the flow guide sleeve is fixedly connected with the inner wall of the protective sleeve, a flow guide groove is formed in the outer wall of the flow guide sleeve, a flow guide plate is fixedly connected to the outer wall of the flow guide sleeve, the outer wall of the flow guide plate is connected with the inner wall of the protective sleeve, and a first connecting hole is formed in the outer wall of the flow guide sleeve. According to the air dust removal device for environment-friendly engineering construction, atomized particles with different diameters are screened and distinguished through the flow guide mechanism, and the atomized particles with different diameters are output, so that the coverage area of the air dust removal device for outputting atomized gas for dust falling is increased, and the dust falling effect of the air dust removal device for environment-friendly engineering construction is better.

This utility model relates to a dust suppression device for post-construction work at a deeply buried railway station, comprising: a support frame; and several spray components, including a movable component and a spray component slidably mounted on the support frame in a left-right direction. Each spray component includes an arc-shaped plate mounted on the movable component, a spray pipe rotatably mounted on the movable component, and a driving component mounted on the spray pipe. The arc-shaped plate has an arc-shaped groove, and one end of the spray pipe slides within the arc-shaped groove, so that the driving component drives the spray pipe to slide left and right within the arc-shaped groove. This utility model, by setting an arc-shaped plate and its arc-shaped groove, allows the spray pipe to slide left and right within the arc-shaped groove under the action of the driving component, thereby achieving a large-area spray coverage. It enables rapid and efficient dust suppression operations, overcoming the problems of fixed nozzle angles and limited spray range in existing systems, and significantly improving dust suppression efficiency and adaptability.

This invention discloses a construction wastewater discharge device and its process for green construction, belonging to the field of construction wastewater treatment and resource recycling technology. It includes: a wastewater collection module; a wastewater diversion device with a first outlet and a second outlet; a single-stage solid-liquid separation module; an internal circulation storage tank; a multi-functional additive dosing system; an independent reuse water supply pipeline; a conventional wastewater treatment module; an external discharge pipeline; and an intelligent control system. This invention divides construction site wastewater into two independent channels: an internal circulation reuse channel and an external discharge treatment channel. The internal circulation water undergoes only a single solid-liquid separation followed by the addition of additives to achieve long-term non-corrosiveness, improve concrete mixing efficiency, and enhance the dust suppression effect of mist cannons. The external discharge wastewater meets discharge standards after conventional treatment. This invention has advantages such as low treatment cost, multiple reuse functions, and significant water-saving effects, and is suitable for various construction sites.

This utility model discloses a dust suppression device for building construction, relating to the field of dust suppression technology. It includes a support column and connecting rods fixedly connected to one side of the column surface. One end of each of the two connecting rods is fixedly connected to a fixed rod. Both sides of the fixed rod's wall are rotatably connected to a swinging structure, which utilizes its own transmission effect to create a swinging characteristic. In use, the support column is installed in the area requiring dust suppression. A water supply pipe is then inserted into the top of the dust suppression spraying structure, allowing water for dust suppression to be delivered to the interior. Simultaneously, the swinging structure drives the dust suppression spraying structure to create a swinging spraying effect, effectively expanding the sprayed area in front of the device. This not only reduces the spray blind zone but also improves the dust suppression efficiency. Furthermore, the device's simple structure facilitates maintenance and adjustment.