2562 results about "Dust fall" patented technology

An aluminum ash pickling device, which relates to the technical field of pickling devices, and comprises a pickling tower (1); and a filtering mechanism comprises a filter screen (8), a rotating shaft (9), a cleaning brush (10) and a rotating disc (11). By means of the filter screen (8), when an induced draft fan (4) drives waste gas to an air intake pipe (2), the waste gas is filtered by the filter screen (8) before entering the pickling tower (1); and under the action of the induced draft fan (4), wind power generated by the waste gas pushes the rotating disc (11) to drive the rotating shaft (9) to rotate, the rotating shaft (9) drives the cleaning brush (10) to rotate, the cleaning brush (10) agitates dust on a surface of the filter screen (8) during rotation, and at this point, the dust is loosened and comes off the surface of the filter screen (8), thus reducing the probability of the filter screen (8) being blocked, and preventing the circulation of the waste gas from being affected. When the wind power is small, the dust falls downward into a collecting box (12), a rotating cover (14) is rotated to release the connection between the rotating cover (14) and an external thread (13), and at this point, the dust accumulated in the collecting box (12) flows downward, such that a worker can collect the dust, thus preventing a small amount of aluminum ash from entering the pickling tower (1) along with the induced draft fan (4) and mixing with an agent which would otherwise impair the treatment efficiency of ammonia gas.

The invention relates to the technical field of construction site dust fall, in particular to a BIM cooperative construction site dust fall spraying device dynamic optimization and construction application system which comprises an environment sensing module, a spraying decision module, an execution regulation and control module and an abnormal response module. The system collects environment parameters through a sensor network to generate a dynamic environment portrait, optimizes a spraying coverage scheme in combination with a BIM model, monitors and adjusts the spraying effect in real time through a closed-loop regulation and control mechanism, and detects abnormal accumulation points to generate a strengthening instruction. According to the invention, precision, dynamic and energy-saving dust fall of the construction site can be realized, the construction environment quality is improved, and the resource consumption is reduced.

The invention discloses automatic stone grinding and dust removing equipment integrating negative pressure adsorption and filtration, and relates to the field of stone grinding, the automatic stone grinding and dust removing equipment comprises a cutting machine, a grinding mechanism and a machining supporting platform, the cutting machine is used for cutting stone, a stone outlet is formed in the cutting machine, and the cut stone is discharged from the stone outlet; the machining supporting platform is arranged at the bottom of the stone outlet and used for bearing the stone, and the grinding mechanism is used for grinding the stone on the machining supporting platform. When stone is placed on the machining supporting platform, the machining supporting platform is provided with a part of suction holes not covered by the stone, and when a negative pressure fan is started in the grinding process of the stone, the negative pressure fan can suck dust into the machining supporting platform, so that the dust falling effect is achieved, and the dust falling problem is solved from a cutting source.

The invention provides a rainwater and wastewater recycling system for a construction site, and relates to the technical field of rainwater collection, the rainwater and wastewater recycling system comprises an underground water well, a water collecting tank is arranged at the upper end of the underground water well, a center shaft is installed at the circle center of the underground water well, and the water collecting tank is rotatably installed on the surface of the center shaft through a bearing; an unfolding assembly is arranged at the top of the water collecting tank, the water spraying rods can be unfolded and folded through the unfolding assembly, in the unfolding state, the plastic cloth between the two water spraying rods can be unfolded to form an umbrella-shaped structure, and rainwater flows into the water collecting tank through the surfaces of the different plastic cloth; impurities and soil in rainwater are filtered in the space formed by the interlayers in the water collecting tank, then the rainwater is collected by the underground water well, when the water spraying rod is folded, the rainwater collected in the underground water well can serve as dust falling spraying water to be conveyed to the water spraying rod, rainwater collection and recycling are achieved, and the device is convenient to install and suitable for a construction site.

The invention relates to the field of air dust falling equipment, in particular to an environment-friendly building construction dust falling treatment device which comprises a machine shell fixedly installed on a movable seat, the top of the machine shell is rotationally communicated with an air inlet pipe, and a driving part for driving the air inlet pipe to rotate is arranged on the machine shell; the fan is fixedly installed on the upper portion of the inner wall of the machine shell, an air outlet of the air inlet pipe is communicated with the fan, the bottom of the fan is fixedly communicated with a filter box, the fan blows air towards the filter box, and a plurality of filter screens are evenly assembled on the outer wall of the filter box in the circumferential direction at intervals. Air is doubly filtered through the filter screen and the water washing box, a linkage system of the shielding mechanism and the dust removal mechanism is matched, and under the condition that normal work of a filter channel of the filter box is not affected, clean air obtained after water washing is used for conducting back flushing cleaning on the isolated filter screen; the problem that the overall efficiency of traditional equipment is reduced due to filter screen blockage is effectively solved.

The invention discloses a landscaping engineering construction dust fall device, and relates to the technical field of construction dust fall, the landscaping engineering construction dust fall device comprises a spraying table, a rotary table is fixedly connected to the upper end of the spraying table, a cleaning mechanism is arranged at the upper end of the spraying table, a supporting mechanism is arranged on the surface of the rotary table, and the rotary table comprises a spraying cylinder rotationally connected to the upper end of the rotary table; a first supporting seat is fixedly connected to the upper end of the spraying table, a first rotating sleeve is rotatably connected to the inner wall of the first supporting seat, a missing gear is fixedly connected to the side end of the first rotating sleeve, a rotating rod is rotatably connected to the upper end of the spraying table, and an upper bevel gear is fixedly connected to the surface of the rotating rod. By adopting the reversing transmission technology that the first rotating sleeve and the missing gear are matched with the upper helical gear and the lower helical gear of the rotating rod, the spraying barrel can be driven to achieve stable periodic reciprocating swing, the limitation of fixed angle or one-way rotation of traditional spraying equipment is broken through, the coverage range of water mist is greatly expanded, and distribution is more uniform.

The invention provides an arrangement method of an excavator spraying and dust falling device and the dust falling device, and relates to the technical field of excavators. The method comprises the following steps: determining a bucket and a required spraying range around the bucket; determining a nozzle mounting reference position; according to the transverse length and the longitudinal length of the spraying range, the number of transverse each row of sprayers and the number of longitudinal each column of sprayers are calculated by combining the effective spraying area of the single sprayers; calculating an included angle between a transverse nozzle and the horizontal direction and an included angle between a longitudinal nozzle and the vertical direction according to the distances from the highest point, the lowest point and the farthest point of the spraying range to the nozzle mounting position; and installing the nozzles according to the calculated number and angle of the nozzles, and controlling the nozzles to spray to form a water curtain covering the spraying range. In the operation process of the excavator, spraying and dust falling are carried out at the same time, the excavator bucket can be cooled, dust generated in the excavation process can also be treated, efficiency is high, cost is low, the spraying water amount is small, accumulated water cannot be generated, and operation safety and operation efficiency are guaranteed.

The invention relates to a litz wire processing technology and a squaring machine, and relates to the technical field of litz wire processing, and the litz wire processing technology comprises the following steps: S1, wire preparation; s2, manufacturing an enameled single wire; s3, bunching; s4, twisting is carried out; s5, squaring; s6, film covering and insulation treatment; and S7, forming. According to the litz wire processing technology, the squaring machine and the dust removal mechanism, the cleanliness of a stranded wire in the squaring process is effectively guaranteed, specifically, an annular pipe with a plurality of air outlet heads A and air outlet heads B and a dust falling pipe are arranged in the dust removal box, the air outlet heads can evenly blow out high-pressure air, dust and impurities on the surface of the stranded wire are effectively removed, and the dust removal efficiency is improved. In addition, the electrostatic generator and the electrostatic dust collection plate in the air inlet box can effectively prevent dust from flying, the dust removal effect is further enhanced, it is ensured that the surfaces of the stranded wires are clean, the quality of subsequent procedures is improved, meanwhile, the influence of dust on mechanical parts of the squaring machine is reduced, and the quality of the squaring machine is improved. And the service life of equipment is prolonged.

The invention discloses a precise dust fall and explosion suppression control method for a fully mechanized coal mining face and a combined type electric ball valve, and relates to the technical field of automatic control. The method comprises the following steps: step 1, an intelligent control device synchronously issues a sampling trigger instruction to a dust monitoring assembly, a spray monitoring assembly and a vibration monitoring assembly; when the three sequences simultaneously meet the preset trigger conditions, generating a trigger event and a control starting point; 2, dividing service areas based on a valve group topology table, determining a target service area, and obtaining a candidate sequence from far to near according to the connection sequence of the valve group topology table and a combined manifold; and 3, the target valve position sequence and the action window are issued to a soft opening and closing curve generator so as to drive an execution motor speed reduction self-locking mechanism in each electric ball valve unit. According to the invention, through collaborative optimization in three aspects of monitoring, scheduling and execution, limitations in triggering accuracy, multi-valve coupling control and execution reliability in the prior art are broken through.

The invention relates to the technical field of dust suppression, and discloses petroleum coke blending dust suppression and recovery equipment which comprises a machine shell and a plurality of pulse guns, a partition plate is fixedly arranged in the machine shell, and an inner cavity of the machine shell is divided into a dust collection cavity and a clean cavity by the partition plate; the driving piece is used for controlling the turning plate to close the square groove in the pulse dust cleaning stage, so that dust falling from the outer wall of the filter cartridge is guided to the dust collection cavity along the inclined plate; and the turning plate is controlled to open the square groove in a non-deashing filtering stage, so that dust-containing gas enters the external space of the filter cartridge through the square groove. An inclined plate is arranged below each layer of filter cartridge, and a turning plate controlled by a driving piece is arranged on each inclined plate. The equipment opens the turning plate in the filtering stage to enable airflow to pass through, and closes the turning plate below the ash removal layer in the pulse ash removal stage to form physical isolation. And dust falling from upper-layer dust removal is thoroughly prevented from falling onto the surface of the lower-layer filter cartridge. The service life of the filter cartridge is obviously prolonged and the maintenance frequency and energy consumption are reduced.

The invention discloses a novel dust falling material with strong wettability and high strength and toughness and a preparation method thereof. The novel dust falling material is prepared from the following raw materials in parts by weight: 1-3 parts of pectin, 10-35 parts of acrylamide, 1-2.5 parts of an initiator, 0.06-0.1 part of sodium periodate, 20-60 parts of bentonite, 8-12 parts of a wetting agent and 1000-3000 parts of water. According to the dust suppressant, the remarkable advantages of performance breakthrough, environment friendliness and economic optimization are achieved through the synergistic effect of multiple components, it is measured through experiments that the dust suppressant can form a solidified shell layer with toughness and strength on the surface of a coal sample, and the dust suppressant has the unique double-water-locking mechanism that polymer carboxyl chemical bonding water molecules and bound water physically adsorbed between bentonite layers are combined, so that the dust suppressant has the good dust suppressant effect on the surface of the coal sample. A good water loss rate can be maintained in a high-temperature drought environment, and the dust suppression efficiency can be improved due to the rapid film forming characteristic. A solidified layer with a complete structure is formed after drying, pulverized coal is effectively prevented from loosening, the inhibition rates of PM2.5 and PM10 both exceed 95%, and the efficient and lasting dust suppression effect is achieved.

The invention relates to the technical field of air conditioners, and provides a cleaning method and device for an air conditioner indoor unit. Judging whether the dust accumulation parameter reaches a preset cleaning condition or not; under the condition that the dust accumulation parameter reaches the preset cleaning condition, the indoor fan is controlled to operate reversely, so that first reverse airflow flowing from the air outlet to the air inlet is generated and used for purging the filter screen; and the air inlet is controlled to be closed, the indoor fan is controlled again to operate reversely to generate second reverse airflow, and the second reverse airflow is used for discharging the dust falling into the heat exchanger through the condensate water pipeline. Whether the filter screen meets the preset cleaning condition or not is judged by monitoring the dust accumulation parameters of the filter screen in real time, when the preset cleaning condition is met, reverse blowing is conducted on the filter screen, then the air inlet is closed, and dust deposited on the heat exchanger is discharged outdoors through the condensate water pipeline by means of the indoor fan again. Therefore, on-demand cleaning based on the actual dust accumulation condition is achieved, and the cleaning efficiency is improved.

The medical part surface treatment device comprises a grinding box, a box door, a grinding mechanism, dust falling grooves, a clamping mechanism and a dust suction mechanism, through the arrangement that the dust suction mechanism is matched with the two sets of dust falling grooves, in the grinding process, a dust suction fan is started, strong suction force is generated, and the grinding efficiency is improved; dust generated by polishing is quickly sucked into the dust collection shell through the dust falling groove, the dust is effectively intercepted when passing through the filter screen in the dust collection shell, clean air is discharged through the air outlet of the dust collection fan, the dust is effectively prevented from diffusing in the polishing box, the cleanliness of the working environment is guaranteed, meanwhile, the filter screen is detachably inserted into the dust collection shell, and the dust collection effect is good. Regular dismounting and cleaning are facilitated, and it is ensured that the dust collection mechanism always keeps a good dust collection effect; through the arrangement of the two sets of clamping mechanisms, the two sets of clamping mechanisms can provide stable and strong clamping force, so that the monitor shell is always kept stable in the polishing process and does not shake or move, and the polishing precision and quality are guaranteed.

The invention discloses an assembly type mortise and tenon joint retention wall and a construction method. The retention wall comprises a foundation base, a vertical water baffle and a dust removal and dirt removal unit. The foundation base is formed by pouring reinforced concrete on the installation site, and a second mortise is formed in the foundation base. A plurality of groups of vertical water baffles are arranged according to water retaining requirements, second tenons matched with the second mortises are arranged at the bottoms of plate bodies of the vertical water baffles, and first mortises and first tenons matched with the first mortises are arranged on the two sides of the plate bodies correspondingly; the foundation base is connected with the vertical water baffles in a two-section mortise and tenon mode, and the water baffles are connected in a mortise and tenon and wedge nail tenon combination mode. The dust removal and decontamination unit comprises a water passing hole, a three-stage reservoir, a dust removal spraying pipe and a dredging spraying pipe; sewage is filtered through the water passing holes, then enters the third-stage water storage pool and is sprayed out from the dust removal spraying pipe and the desilting spraying pipe according to needs, and the dust falling function and the desilting function are achieved respectively. According to the retention wall, the stability of the overall structure is greatly improved, and water resources can be recycled.

The invention discloses a water-saving type cleaning robot based on visual analysis, and relates to the cleaning robot technology, the water-saving type cleaning robot comprises a protective shell and a bearing bottom plate which form a robot body, and the protective shell is fixedly mounted on the top surface of the bearing bottom plate; sweeping rotating brushes are rotationally arranged on the left side and the right side of the front side of the bottom surface of the bearing bottom plate through bearings; wherein a visual analyzer is arranged above the front surface of the protective shell; a circulating mechanism is arranged behind the top face of the bearing bottom plate and comprises a circulating base. According to the water-saving type cleaning robot based on visual analysis, the supply water tank in the robot body assists the atomization sprayer to form a three-dimensional dust suppression and dust falling area, so that after wet dust is collected more efficiently, separated spraying water flows back to the circulating mechanism again after being treated, and the dust suppression and dust falling efficiency is improved. A complete, efficient and self-adaptive dust suppression closed-loop system is formed, and the balance between the optimal dust suppression effect and the lowest energy consumption and water consumption is achieved.

The application discloses a kind of hierarchical progressive laser welding dust removal equipment, including laser installed on equipment support and welding platform located directly below it, also including dust removal piece between welding platform and laser, the dust removal piece includes welding slag splashing dust removal assembly and welding station dust removal assembly located in its lower part.The application is realized double dust removal by setting dust removal assembly in welding slag splashing dust removal assembly and welding station dust removal assembly, ensure that dust can be treated comprehensively, and progressive dust fall assembly is set in welding slag splashing dust removal assembly, dust removal is carried out by progressive dust fall assembly, dust can be slowed down by level, effectively slow down welding slag and increase dust removal efficiency, and the hierarchical progressive laser welding dust removal mechanism of the application adopts non-contact dust removal mode, simple structure, reduce space occupation, easy to install.

The invention discloses an elevator energy feedback and energy storage system, and belongs to the field of energy feedback. Comprising a super capacitor cabinet, the super capacitor cabinet comprises a cabinet body frame, and the side surface of the cabinet body frame is provided with ventilation mesh holes; the dehumidification module is arranged on the inner wall of the cabinet body frame, and the dehumidification module is used for removing moisture in the super capacitor cabinet; the dust removal module is arranged on the side face of the cabinet body frame and used for synchronously cleaning the ventilation mesh holes along with falling of the dehumidification bag; and the collection module is arranged on the dehumidification module, and the collection module is used for collecting the dust falling into the super capacitor cabinet. According to the elevator energy feedback and energy storage system, a dehumidification bag is automatically replaced through the dehumidification module, and low-frequency inspection is adapted; the dust removal module cleans the ventilation mesh holes through mechanical linkage; the collecting module collects dust through an air curtain and a drawer. The three synergistically guarantee dehumidification, ventilation and dust prevention, reduce the risk of short circuit, and ensure long-term reliable operation of the elevator energy storage system.

The invention relates to a simulation method and device for a hydraulic support column descending and support moving dust production migration rule, and belongs to the technical field of coal mine dust control. In order to solve the problems that the prediction error of an existing model exceeds 40%, the migration path deviation exceeds 50%, the side seam adjusting precision of the device is + / -20 mm, and the dust falling efficiency fluctuates by 35%, a multi-factor coupling modeling and intelligent dynamic regulation and control technology is provided. The method comprises the following steps: constructing a dust production prediction model of coal rock hardness, water content, roof pressure bearing and side seam spacing coupling, monitoring dust distribution in real time by adopting a laser scattering sensor and a particle size spectrometer array, designing a high-precision electric push rod to adjust the side seam spacing to + / -0.5 mm, and dynamically correcting an error in combination with Kalman filtering. The device comprises an adjustable support assembly, a triaxial pressure loading module and an intelligent verification system. The dust production prediction error is 9.8%, the migration deviation is 14.6%, the adjusting efficiency is improved by 3.2 times, the dust falling fluctuation is compressed to 7.9%, and the respiratory dust inhibition rate reaches 85.4%.

The invention belongs to the technical field of unattended management of thermal power plants, and relates to an intelligent dust fall and combustion suppression unattended management and control method and system for a coal yard of a thermal power plant. The method comprises the following steps: acquiring coal dust concentration, a dust region, a plurality of coal pile weights and a plurality of coal pile position forms; obtaining the spraying amount according to the coal dust concentration, and obtaining the spraying area range according to the dust area. The coal pile temperature is obtained in real time, whether combustion suppression control needs to be carried out or not is judged according to the coal pile temperature, if yes, the component of combustion suppression medicine is obtained according to the weight of the multiple coal piles, the medicine concentration is obtained according to the component of the combustion suppression medicine and the coal pile temperature, and the spraying angle of the medicine spraying equipment is obtained according to the position forms of the multiple coal piles. The manual labor intensity and the occupational disease hazard probability are remarkably reduced through automatic spraying operation; and real-time temperature monitoring and precise spraying cooling are combined, so that spontaneous combustion of the coal pile is effectively prevented. According to the invention, intelligent safety control of the coal yard is realized, and the stability and reliability of safe operation of the coal yard are improved.

The invention discloses a novel environment-friendly watering device for dust fall in constructional engineering construction, and relates to the technical field of constructional engineering.The novel environment-friendly watering device for dust fall in constructional engineering construction comprises a water tank, universal wheels are fixedly connected to the bottom of the water tank, a water inlet is formed in the top of the water tank, and a water pump is fixedly connected to the side wall of the water tank; the bottom of the water pump is fixedly connected with one end of a water suction pipe; according to the novel environment-friendly watering device for dust fall in building engineering construction, by starting a motor, a rotating rod rotates, so that a rotating column is driven to rotate and do circular motion, chemicals enter the rotating column from a chemical liquid opening, meanwhile, the rotating column rotates to drive a spraying column to rotate in the same direction, and the chemical liquid is sprayed out and evenly sprayed into a water tank; the problem that more water needs to be sprayed for dust falling due to the fact that liquid medicine is concentrated at one position of the water tank and dissolution of water and the liquid medicine is slow is solved. And the water-saving effect is achieved.

The invention relates to a fully mechanized coal mining face dust distribution spatio-temporal evolution prediction method and system based on multi-dust-source coupling, and belongs to the technical field of coal mine dust treatment and intelligent prediction. Aiming at the problems of insufficient quantification of multi-dust-source interaction, lack of respirable dust monitoring and low prediction model precision in the prior art, the invention provides the following scheme: constructing a coal cutter coal cutting dust production model and a hydraulic support moving dust production model, and fusing coal rock crushing characteristic parameters and equipment working condition parameters; establishing a dust migration numerical model based on a Navier-Stokes equation and a discrete phase model; calibrating model parameters in real time through a distributed sensor network; and generating a respiratory zone height dust spatio-temporal evolution graph and driving an intelligent dustproof system. The method has the effects that the dust concentration prediction error is reduced from 40% to 12-15%, and the dust source positioning error lt is reduced; the dust falling efficiency is improved by 30%, the water is saved by 22%, and the device is suitable for the scene with the mining height of 3-8 m and the wind speed of 0.5-3.0 m / s.

The invention discloses dust fall equipment for a building construction site, and relates to the technical field of dust fall, and the dust fall equipment comprises a dust fall device. According to the dust falling equipment for the building construction site, the dust falling device is designed and makes contact with the ground through the stabilizing mechanism, so that the contact area between the dust falling equipment and the ground is increased, the friction force of components to the ground is improved, dust in the building construction site is absorbed through wind power generated by the pneumatic mechanism, the dust falling effect is achieved, human health is protected, and the disease risk is reduced; dust is guided through the guide plate, the flowing speed in the dust equipment is increased, dust residues in the equipment are reduced, liquid is sprayed into a site through the spraying device, so that the dust falling effect is achieved, the airflow flowing direction is changed through the pneumatic mechanism, the pneumatic mechanism is matched with the spraying device, and the dust falling effect is improved. In the process that the spraying device sprays the site liquid for dust falling, the liquid spraying range is enlarged through wind power, so that the site dust falling efficiency is improved, and the equipment spraying range is enlarged.

The invention relates to the technical field of tunnel construction, in particular to a dust falling device and method based on machine vision, and the dust falling device comprises a surrounding rock structural surface intelligent recognition device, an anchoring assembly, a sliding rail assembly, an atomization assembly, a vision device, a dust concentration instrument, a four-in-one gas monitor, a phase Doppler particle analyzer and a control device. The anchoring assembly is detachably installed on the top wall of a tunnel, the sliding rail assembly is connected to the anchoring assembly, the sliding rail assembly is arranged in the axial direction of the tunnel, the atomization assembly is connected to the sliding rail assembly, the atomization assembly is connected to the sliding rail assembly, and the atomization assembly is connected to a tunnel water pipe. The intelligent recognition equipment for the surrounding rock structural plane is mounted at a position close to a tunnel face in a tunnel. The technical problems that in the prior art, tunnel blasting and dust falling equipment always operates independently, and effective coordination and intelligent control are lacked are solved.

The large stone cutting machine with the adjustable water spraying position comprises a portal frame, a cutting saw blade, a control box, a back plate and a water spraying mechanism, the water spraying mechanism comprises a water conveying pipeline, a spraying head, a bearing plate, a roller, a pull rope, a linear guide rail, an electric rotary table, a magnetic attraction block and a metal block, and stone can be placed below the cutting saw blade to be cut; in the cutting process, the linear guide rail can drive the electric rotary table and the magnetic attraction block to move above the roller, when the magnetic attraction block moves to the position above the metal block, magnetic attraction can be conducted, and after magnetic attraction is completed, the electric rotary table can drive the roller to rotate through the magnetic attraction block and the metal block, so that the pull rope is further wound; and the number of the rollers is two, the position of the water conveying pipeline in the arc-shaped rail groove can be adjusted by controlling the different rollers to rotate, and water sprayed out of the spray heads can conduct targeted cooling and dust falling on different positions of the cutting saw blade.

The utility model relates to a top-mounted power device for a pure electric dust suppression vehicle. The top-mounted power device comprises a chassis, and a tank body, a fog gun, a fan motor, a lifting oil cylinder, a slewing mechanism and a power assembly which are positioned on the chassis, the fan motor is used for driving fan blades in the fog gun to rotate; the power assembly comprises a double-head output motor, a gear pump, a water pump and a two-in-one controller, the front end of the double-head output motor is directly connected with the water pump, the water pump supplies water for road surface watering operation and spraying dust falling operation, and the rear end of the double-head output motor is directly connected with the gear pump; and the two-in-one controller is used for controlling the operation of the double-end output motor and the fan motor. Through optimization of a control system and integration of a power structure, a two-in-one controller is adopted to control all operation actions of loading, a double-end output motor is adopted to directly connect and drive a water pump and a hydraulic pump, redundant motors and controllers are omitted, wire harnesses are reduced, the weight of a vehicle is reduced, the effective volume of a tank body is increased, and cost is saved.

The invention belongs to the technical field of coal mine intelligent safety and environmental protection, and relates to an intelligent spraying and dust falling control method and device for a coal mine and computer equipment, and the method comprises the steps: collecting dust concentration, personnel activity and equipment state parameters in a roadway in real time by arranging various types of sensors; constructing a dust diffusion model and risk level evaluation based on the collected dust concentration, personnel activity and equipment state parameters; based on a risk assessment result, an optimal spraying control strategy is automatically generated, and the dust falling effect and resource consumption are balanced; the control strategy is converted into a specific execution instruction, and a spraying device is driven to carry out dust falling; multi-system interlocking linkage and cooperative control dust falling are carried out; through continuous monitoring and data analysis, the operation effect of the system is evaluated, and control parameters are automatically optimized. The system has the advantages of precise dust fall, improvement of operation safety, resource saving, reduction of operation cost, multi-system cooperation, enhancement of emergency response, continuous optimization and improvement of system efficiency.

The invention belongs to the technical field of building construction, and discloses a construction dust falling device which comprises a shell and further comprises a protective cover and a middle shaft which are fixedly connected to the top of the shell and the interior of a cavity correspondingly, a spray head assembly is arranged in the shell, and a conveying pipe assembly for conveying water into the spray head assembly is arranged at the bottom of the shell; a direction adjusting mechanism capable of reversely adjusting the spraying direction of the spray head assembly along with the wind direction is installed on the protective cover. According to the scheme, a water source is guided into the spray head body through the conveying pipe assembly and sprayed outwards from the end of the spray head body, so that when the device encounters airflow, the blades can deflect with the spherical part of the sleeve rod as the axis, for example, when the spray head assembly deflects with the middle shaft as the axis, the flow baffles can abut against the corresponding supporting arc plates and make the supporting arc plates deflect, and the airflow is sprayed outwards from the end of the spray head body. And at the moment, the nozzle body can spray a farther distance to resist airflow, so that the effective contact time of water mist and dust is prolonged.

The utility model provides a coal dust spraying and dust falling device for coal mining, which comprises supports fixedly arranged on two sides of a rack at the output end of a conveying belt, a transverse plate is fixedly arranged between the top ends of the two supports, a spraying pipe is erected below the transverse plate, and spraying heads are uniformly arranged at the bottom of the spraying pipe; the spraying pipe is connected with a water supply assembly through a pipeline, the water supply assembly is electrically connected with a controller, and the controller is used for controlling the water supply assembly to supply water to the spraying pipe or stop supplying water to the spraying pipe. The controller is electrically connected with a relay for controlling the start and stop of the conveying belt and is used for collecting power-on and power-off signals of the conveying belt; according to the utility model, the water supply assembly and the conveying belt are in linkage control, spraying dust fall is carried out when the conveying belt runs, spraying dust fall is stopped after the conveying belt stops and delays for a period of time, the spraying dust fall is not influenced by the height of coal gangue flow on the conveying belt, and the dust fall effect is ensured.

The utility model discloses a collaborative micro-nano bubble water device for mine wastewater utilization and dust fall, and belongs to the technical field of mine environmental protection equipment. The device comprises a gas cylinder and a water storage tank, the water storage tank is sequentially connected with a primary purification device, a secondary purification device and a micro-nano bubble generating device through pipelines, the gas cylinder is connected with the micro-nano bubble generating device through a gas conveying pipeline, and the micro-nano bubble generating device is connected with a micro-nano bubble water storage tank through a pipeline. The micro-nano bubble water storage tank is communicated with the clamping head plate through a conveying pipe provided with a high-pressure water pump, a nozzle mounting base is arranged at the bottom of the clamping head plate, and an atomizing nozzle used for generating water mist is arranged on the nozzle mounting base. According to the utility model, the wastewater treatment unit, the micro-nano bubble preparation unit, the spray dust fall unit and the ultrasonic synergistic unit are integrated into an integrated device, so that resource circulation and cooperative utilization are realized, meanwhile, a multi-nozzle layout capable of being quickly disassembled and assembled is arranged, and the coverage range is flexible and adjustable.

The invention provides an intelligent variable-frequency dust fall system for a construction site. A flying dust monitoring module is used for monitoring dust particulate matter information of the construction site; the dust falling module is used for carrying out dust falling operation on the construction site; the water supply module is used for collecting treated water so as to supply water to the dust falling module during the dust falling operation; the frequency conversion control module is used for controlling respective working states of the dust falling module and the water supply module according to the dust particulate matter information, and dynamically regulating and controlling operation of dust falling equipment by detecting the dust particulate matter information of flying dust in real time, so that accurate and efficient flying dust treatment is realized, the utilization efficiency of water resources and energy can be optimized, and the dust falling equipment can be flexibly suitable for various construction environments; the flying dust treatment effect and the resource saving capacity are remarkably improved, and the problem of air pollution caused by flying dust on the construction site is effectively solved.