7138results about "Using liquid separation agent" patented technology

The invention relates to the technical field of unmanned aerial vehicle dynamic dust suppression intelligent decision making based on multi-sensor data fusion, in particular to a loess photovoltaic construction dust suppression unmanned aerial vehicle spraying dynamic regulation and control device and method, and the method comprises the steps: building a dynamically updated four-dimensional concentration field through a sensor cooperation unit in combination with a turbulence diffusion model of a dust field reconstruction engine; and the strategy knowledge base is optimized to shorten the flight path planning decision-making period from the minute level of the existing offline planning to the second level response. And the anti-interference execution unit realizes accurate spray trajectory tracking under a complex wind field condition. And a real-time evaluation closed loop of the dust suppression effect is constructed by a dual-spectrum imaging and deep learning analysis technology of the efficiency feedback unit, so that a dust field model can dynamically correct boundary condition parameters. The response lag time of an existing dust suppression system is shortened, meanwhile, the spray coverage rate is increased, energy consumption is reduced on the premise that the dust suppression effect is guaranteed, and an intelligent solution is provided for photovoltaic construction flying dust treatment.

The invention relates to the technical field of deodorization control, in particular to an air dust suppression, haze reduction and deodorization control system and method based on the Internet of Things. The method comprises the following steps: acquiring three-dimensional point cloud data and point cloud echo signals of a target area; analyzing the abnormal weakening trend of the echo intensity of the point cloud echo signal to calculate the dust concentration of the air in the target area; calibrating the dust concentration by using the three-dimensional point cloud data to obtain dust concentration three-dimensional gradient distribution data; acquiring a wind speed vector of the target area; constructing an air vortex field model based on the wind speed vector; performing dust migration path prediction on the dust concentration three-dimensional gradient distribution data by using an air vortex field model to generate dust migration path prediction data; and determining mobile positioning data of the fog gun based on the dust concentration three-dimensional gradient distribution data. According to the method, refined and dynamic air dust suppression, haze reduction and deodorization control is realized through point cloud modeling, air vortex field prediction and intelligent spraying optimization.

The invention discloses a waste gas washing spray tower with an anti-corrosion structure, and relates to the technical field of waste gas treatment.The waste gas washing spray tower comprises a tower body, a liquid storage tank formed in the tower body, a gas inlet pipe installed on the side wall of one side of the tower body and a gas outlet pipe installed at the top of the tower body; spraying assemblies are mounted in the tower body above the two filler purification assemblies, a demister is mounted on the inner wall of the tower body below the gas outlet pipe, and an anti-corrosion lining is laid on the inner wall of the tower body. By arranging the filler purification assembly, the effect that blocked filler can be automatically discharged from the rectangular grid during cleaning is achieved, manual scraping is not needed, the labor burden of workers is reduced, and the speed of taking the filler out of the spray tower is increased; and by arranging the traction mechanism, the effect that the traction rope pulls and drives the two filler purification assemblies to synchronously turn over is achieved, and simultaneous discharging of filler in the two filler purification assemblies is facilitated.

A disk-pack turbine for use, for example, in systems and methods in at least one embodiment for separating fluids including liquids and gases into subcomponents by passing the fluid through a vortex chamber into an expansion chamber and then through at least a portion of a waveform pattern present between at least two rotors and / or disks. The rotors and / or disks having waveform patterns on at least one side. In at least one embodiment, the waveform patterns include a plurality of hyperbolic waveforms travelling around an axial center of the disk with each hyperbolic waveform having a varying diameter along the waveform.

The invention discloses a mobile intelligent control spraying and dust-settling system, and particularly relates to the technical field of compensation or utilization of an external environment of a spraying and dust-settling spraying vehicle under a wind field disturbance condition, which comprises a plurality of wind speed and wind direction sensing nodes mounted on a lifting rod in the advancing process of the spraying and dust-settling spraying vehicle, acquiring a plurality of local wind field parameters in different heights and directions, and constructing a wind speed gradient data set based on the local wind field parameters; and performing normalization and disturbance feature extraction processing on the wind speed gradient data set to generate a wind disturbance time sequence and a spatial disturbance distribution map. By constructing a time-space coupling control mechanism fusing wind disturbance feature extraction, trend prediction and path calibration, advanced sensing of non-steady-state wind field disturbance and dynamic correction of spray response parameters are achieved, and therefore the problems of sensing-control coupling lag and spray offset errors are solved.

The invention discloses a dust treatment device for emery production, and relates to the technical field of emery production, the dust treatment device comprises a dust absorption mechanism and a dust absorption pipe mounted on one side of the dust absorption mechanism, a dust treatment mechanism is arranged on one side of the dust absorption mechanism, and a filter box is arranged on one side of the dust treatment mechanism; the dust absorbing mechanism comprises a dust absorbing sleeve, a first rotating shaft is arranged in the center of the interior of the dust absorbing sleeve, a dispersing rotating disc is fixedly installed on one side of the first rotating shaft and rotationally connected with the dust absorbing sleeve, and a plurality of dispersing spiral plates are fixedly installed on the outer side of the first rotating shaft; due to the fact that a certain amount of water is contained in the anti-static spray, the preliminary dust falling effect can be achieved, meanwhile, the anti-static effect can be achieved, and the phenomenon that due to the fact that the concentration of sucked dust is too high, dust suction pipes are mostly made of metal materials, certain electrostatic sparks are generated and make contact with aluminum oxide dust, and then explosion is generated is avoided.

The invention discloses a building demolition dust intelligent suppression method and system, and relates to the field of building demolition dust suppression, and the method comprises the steps: obtaining the wind field data of a building demolition area and the spatial position information of a structure, and obtaining the arrangement parameters of each nozzle unit in a spraying system; constructing a wind barrier interference area model in the target area according to the spatial position information and the wind field data; calculating the spraying range of each nozzle unit according to the arrangement parameters; performing space superposition on the spraying range and the wind barrier interference area model, calculating a distribution prediction value of spraying particles generated by each nozzle unit in a three-dimensional space, and generating a space unit matrix of an operation area; traversing the space unit matrix to judge the particle distribution uniformity; maintaining or adjusting nozzle unit arrangement parameters according to a judgment result; dynamic reconfiguration of spraying resources in a multi-nozzle system is achieved, and the problem that the dust suppression efficiency is low due to coexistence of over-spraying and under-spraying is solved.

The invention discloses a control process and equipment for processing waste gas treatment in the generic semiconductor industry, and relates to the technical field of semiconductor, panel, solar energy and LED waste gas treatment. The equipment comprises a gas inlet control unit, a plasma torch, a reaction cavity, a water tank and a washing tower which are sequentially connected, wherein the gas inlet control unit comprises a three-way valve to realize switching of a main machine and a standby machine; the water tank is provided with a heat exchange and monitoring part; the washing tower comprises a washing section, a turbulent flow section and a demisting section. The process comprises the steps of air inlet control, pyrolysis combustion, cooling and pre-dedusting, water washing, washing tower treatment and the like, and is combined with PID control of plasma power and CDA consumption, and logic control of drainage, flushing and the like. The problems of pipeline blockage and corrosion caused by high operation cost, short PM period and poor washing effect in the process of treating high-dust and high-corrosion process waste gas in the prior art are solved, and the method has the advantages of reducing the cost, prolonging the maintenance period, improving the treatment efficiency and the like.

The invention relates to a combined truncated cone type gas-liquid redistributor. The combined truncated cone type gas-liquid redistributor comprises a conical wall and a connecting bottom plate. Theconnecting bottom plate is fixedly arranged at the bottom of the conical wall, and is provided with a plurality of strip-shaped folding plates; the strip-shaped folding plates are of inverted-V structures; a plurality of air holes are formed at equal intervals in both sides of each strip-shaped folding plate; a stop plate is fixedly arranged on the lateral side of the strip-shaped folding plate above each air hole, and an angle is formed between each stop plate and the lateral side of the corresponding strip-shaped folding plate; the angles between the stop plates and the lateral sides of thestrip-shaped folding plates are proportional to the distances from the stop plates to the center of the connecting bottom plate. The combined truncated cone type gas-liquid redistributor has the advantages that the strip-shaped folding plates and the stop plates are adopted to achieve a good distribution effect of washing liquid, and accordingly, the area and time of contact between gases and liquid can be increased and prolonged; the included angles between the stop plates and the lateral sides of the strip-shaped folding plates are proportional to the distances from the stop plates to the center of the connecting bottom plate, so that the differences among the flowing speeds of gases from each air hole are small, the gas distribution effect is good, poor gas-liquid distribution in a packing tower is reduced, and the gas-liquid mass transfer efficiency is improved.

The invention relates to the technical field of intelligent environmental protection, in particular to an unmanned aerial vehicle urban atmospheric pollution monitoring and preventing system based on radar and AI cooperation, which comprises a laser radar scanning module, an edge computing gateway, a cloud server, a small unmanned aerial vehicle inspection module, an unmanned aerial vehicle spraying module and a fog gun vehicle module, the laser radar scanning module scans and generates point cloud data in real time, and pollution information is obtained by combining positioning and aerosol inversion; the edge computing gateway uses a DBSCAN clustering algorithm and an improved YOLOv8 model to determine pollution hot spot coordinates, grades and pollution source types; the cloud server dynamically dispatches all the modules in sequence, an improved ant colony algorithm is adopted to plan a route, and real-time obstacle avoidance and accurate spraying are achieved; the small unmanned aerial vehicle inspection module obtains an image of a polluted area, the unmanned aerial vehicle spraying module carries out precise spraying treatment, and the fog gun vehicle module carries out dust suppressant spraying on a dust raising source. The defects of a traditional atmospheric pollution monitoring and treatment means are overcome, and accurate monitoring and efficient treatment are achieved.

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 relates to the technical field of building construction early warning, and particularly discloses a building construction temporary facility early warning management and control system based on the Internet, environment data of a construction site are collected in real time through a multi-dimensional environment sensing equipment array, and a surface dust accumulation distribution image of a windproof dust suppression net is synchronously obtained through an image collection device; performing multi-source environmental parameter fusion modeling according to the environmental data to obtain a construction site environmental parameter fusion model; performing dynamic efficiency evaluation on the dust suppression capability of the windproof dust suppression net to obtain a dust suppression efficiency evaluation coefficient of the windproof dust suppression net; and when the dust suppression efficiency evaluation coefficient is lower than a preset threshold value, an atomization spraying system is triggered automatically, and a corresponding spraying instruction is generated automatically, so that the atomization spraying system is controlled. Through real-time monitoring, dynamic evaluation and automatic control, the use efficiency of the windproof dust suppression net can be effectively improved, raised dust emission of a construction site is reduced, and environment-friendly compliance of construction activities is ensured.

This invention discloses a dust suppression machine for building demolition, belonging to the technical field of building demolition. It includes a water storage base with a water pump inside, and a water supply pipe connected to one end of a dust suppression cylinder, with a motor installed inside the other end of the dust suppression cylinder. It also includes a first annular pipe fixed to the inner wall of the dust suppression cylinder near the water supply pipe, and the first annular pipe communicating with the water supply pipe; a support frame fixed to the upper surface of the water storage base, with the dust suppression cylinder rotatably mounted on the inner side of the support frame, and an expansion mechanism located in the middle of the dust suppression cylinder. This dust suppression machine for building demolition increases the spraying range by adding nozzles to the outside of the dust suppression cylinder. Compared to traditional methods of changing the spray angle and adjusting the horizontal position, it can further expand the spraying range, adjust the spraying distance, and recover liquid dripping near the dust suppression machine, reducing water waste.

The invention discloses a dust suppression method and system for railway track dry bulk cargo loading. The method comprises the steps that if it is detected that loading operation is started on an iron road trunk line, an area to be subjected to dust suppression is determined based on loading operation field data; acquiring environment information corresponding to the region to be subjected to dust suppression, wherein the environment information comprises wind direction information; determining a to-be-loaded article based on the loading field operation data, and determining the moisture content corresponding to the to-be-loaded article; and a control strategy corresponding to the spraying system is determined based on the wind direction information, the water content and the area corresponding to the area to be subjected to dust suppression, and operation parameters corresponding to the spraying system are adjusted based on the control strategy so as to perform dust suppression treatment on the loading operation process. According to the invention, accurate treatment of railway track loading flying dust pollution is realized, limitation of traditional fixed dust suppression is broken through, and pollution prevention and control efficiency and resource utilization efficiency are remarkably improved.

The dust falling device comprises a base, a fog gun barrel is installed above the base, a water tank is installed on one side of the base and communicates with the fog gun barrel through a pipeline, a plurality of spray heads are fixedly installed on one side of an inner cavity of the fog gun barrel, and an adjusting assembly is fixedly installed between the base and the fog gun barrel. A fan assembly is fixedly installed in an inner cavity of the fog gun barrel, a recycling assembly is installed above the water tank, the problem that water mist coalesces and falls off due to high-speed airflow of a traditional fog gun machine is solved through the recycling assembly, and a collecting plate is driven to be overturned and unfolded to form a funnel-shaped structure; the inclined flow guide face is used for receiving undiffused water mist which falls off due to disturbance of high-speed airflow of a draught fan and is close to a spraying opening of the mist gun barrel, the collected water mist is guided to return to the water tank through the collecting tray and the recycling pipe, efficient recycling of water resources which do not effectively participate in dust falling is achieved, and the water resource utilization efficiency of the device is improved. And the water resource consumption of dust falling operation of the device is reduced.

Provided is an environment-friendly mobile collecting box for decoration cutting dust. The mobile collecting box comprises a box body, wherein a water tank is fixedly mounted on one side of the bottomsurface of the inner wall of the box body, the bottom surface and the outer side of the water tank are fixedly connected to the inner wall of the box body separately, the inner side of the water tankis fixedly connected to one side of the box body, and openings are formed in the top surface and the other side of the box body; a first through hole is formed in the bottom of the inner side of theinner wall of the water tank, a switching valve is disposed in the first through hole, and a second through hole is formed in one side of the box body; the interior of the first through hole communicates with the interior of the second through hole, and the second through hole communicates with the interior of the box body; the top surface of the water tank is fixedly connected to one end of a hose, and the other end of the hose is arranged in the box body, and a floating plate is fixedly mounted on the periphery of the other end of the hose. Sediment in the box body can be pushed directly into the garbage bag through cooperative use of a mud box and a garbage bag, and the mud box can be taken and placed freely; after the mud box is taken out, a sealing cap of the garbage bag containing the sediment is removed, and after the garbage bag is replaced by a new garbage bag, the mud box is put back, and the sediment is not in contact with the mud box, and cleaning of the mud box by a user is not needed, so that time and labor are saved.

The invention discloses a garden construction flying dust pollution prediction and suppression system based on big data multi-dimensional analysis, and belongs to the field of environment detection. The invention discloses a garden construction flying dust pollution prediction and suppression system based on big data multi-dimensional analysis. The system comprises a data acquisition module, an edge calculation node module, a prediction and pre-diagnosis module, a suppression strategy generation module and an intelligent scheduling execution module. The problems of monitoring lagging, difficulty in tracing, passive treatment and serious resource waste in the prior art are solved, a full-dimensional data acquisition and processing system is constructed, accurate perception and dynamic association of construction dust pollution sources are realized, advanced prediction of pollution situations is realized by deploying edge calculation and cloud intelligent analysis, and the construction dust pollution sources can be effectively monitored. And finally, through dynamic optimization of a suppression strategy and intelligent scheduling execution, conversion from passive response to active pre-control and from extensive operation to targeted treatment is realized, and the problems of monitoring lag, passive response, resource waste and the like in traditional treatment are effectively solved.

The utility model discloses an energy-saving flue gas treatment device for an electric melting furnace, and relates to the technical field of flue gas treatment of electric melting furnaces. The device comprises a base and further comprises a purification box arranged on one side of the top of the base, a heat exchange box is arranged on the other side of the top of the base, a smoke inlet flue is connected to one side of the top of the heat exchange box in an inserted mode, and a liquid level meter is arranged at the front end of the heat exchange box. The spraying dust-settling assembly is arranged on the other side of the purifying box, water in the purifying box is pumped out through the pump machine during use, impurities in the filter cover are used for filtering, the situation that the impurities are sucked into the pump machine and attached to an impeller for a long time, and normal operation of the pump machine is affected is avoided, the impurities are conveyed into the annular spraying pipe through the conveying pipe, and the water purifying efficiency is improved. And then the flue gas which is fused with the water body and absorbs impurities is further absorbed and subjected to dust falling treatment under spraying of the spraying opening, so that the flue gas treatment effect of the device by utilizing a liquid absorption method is further improved, and the practicability is high.

The utility model relates to the technical field of gas-liquid redistributors, and discloses a gas-liquid redistributor for a small packed tower, which comprises a distribution plate, gas uniform distribution holes and liquid uniform distribution holes are arranged on the distribution plate and are arranged on different circles taking the center of the distribution plate as the center, and the gas uniform distribution holes and the liquid uniform distribution holes are arranged on each circle. The gas uniform distribution holes and the liquid uniform distribution holes are alternately distributed, the distances between two adjacent circles are equal, and the liquid distribution holes of the two adjacent circles are distributed in a staggered manner; a gas distribution pipe and a liquid distribution pipe are respectively arranged above and below the distribution disc, the gas distribution pipe is connected with the gas uniform distribution holes, and the liquid distribution pipe is connected with the liquid uniform distribution holes. The gas-liquid redistributor disclosed by the utility model is suitable for being used in a small-sized gas-liquid mass transfer packed tower, has a simple structure, cuts a gas phase into smaller gas flows, uniformly distributes liquid into smaller liquid drops, and increases the contact area between the liquid and the gas, thereby improving the mass transfer efficiency.

The invention relates to the technical field of starch processing, and particularly discloses a section tail gas efficient dust removal and deodorization device for starch processing, the section tail gas efficient dust removal and deodorization device comprises a dust removal box, a first deodorization box and a second deodorization box which are sequentially installed from bottom to top, the dust removal box is filled with deodorization liquid medicine, and one side of the dust removal box is provided with an air inlet assembly; a biological deodorization assembly is arranged in the first deodorization box, and a photocatalytic deodorization assembly is arranged in the second deodorization box; and mounting lug seats which are distributed at equal intervals are fixed to the inner wall of the dust removal box, and the same blocking cylinder is fixedly mounted at one ends of the mounting lug seats. According to the device, the contact efficiency of tail gas and liquid medicine is remarkable, dust particles in the tail gas can be effectively intercepted and adsorbed, meanwhile, a secondary dust removal area is formed in the upper space of the dust removal box, the dust removal rate is further increased, deep deodorization and multiple deodorization modes are progressively performed layer by layer, odor substances in the tail gas can be fully removed, and the environment friendliness is achieved. And the discharged gas is fresh and harmless.

The invention relates to the field of building construction equipment, in particular to dust falling equipment for building construction and a using method thereof.The dust falling equipment comprises a machine base, a mounting frame is arranged at the top of the machine base, an air duct is hinged to the upper end of the mounting frame, and a draught fan is fixedly installed in the air duct. According to the dust falling equipment for building construction, through cooperation of the adjusting mechanism, the nozzles and the transmission mechanism on the supporting structure, the spraying paths of the nozzles can be changed, the radial spraying diameter between the multiple nozzles is increased, and therefore the spraying range and the coverage area are enlarged; through cooperation of the adjusting mechanism and the contraction assembly, the radial diameter at the air duct end can be increased along with deflection of the nozzle, so that the spraying range of the nozzle can be further improved, the radial distance at the air duct end is reduced along with deflection and gathering of the nozzle, dispersion of water mist can be reduced when the dust falling device carries out centralized dust falling on a certain position, and the dust falling efficiency is improved. Therefore, the adaptability of the equipment to different working conditions is improved.

The invention relates to the technical field of environmental protection, in particular to a spraying dust removal method, equipment and system. The spraying dust removal equipment comprises an outer cylinder and an adjusting mechanism, wherein a smoke inlet is formed in the lower part of the outer cylinder. The adjusting mechanism comprises an adjusting assembly and a plurality of turbulent balls. The adjusting assembly comprises a pull ring, a net bag and a driving unit. The smaller the initial dust air flow entering the smoke inlet is, the larger the upward moving stroke of the pull ring driven by the driving unit is, the upward moving of the pull ring drives the middle of the net bag to be further sunken downwards, the structure is convenient for weak air flow to preferentially pass through the periphery of the net bag with a small number of turbulent balls, effective turbulent washing is formed in the area, and the working efficiency is improved; and the normal operation and the dust removal effect of the equipment under low load are ensured. The invention provides a spraying dust removal method, equipment and a system, aiming at solving the problems that the dust removal efficiency is low and even the dust removal device cannot work when the flow of dust gas introduced into the existing dust removal device does not reach a preset dust gas flow range value.

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 present invention discloses a highly integrated intelligent construction platform for use in the construction of a building's main structure. The platform comprises a Bailey frame and supporting columns. A cantilever support frame is connected below the supporting columns, which is connected to a support guide rail and a lifting mechanism. One end of the Bailey frame extends out of the building's main structure and is connected to a trolley crane. A material distributing machine, a top scaffolding board, a mobile house, a canopy, and a sprinkler system are integrated above the Bailey frame. A lifting material distributing platform is provided below the trolley crane. A construction elevator is provided on the side of the Bailey frame near the mobile house. The support guide rail and the lifting material distributing platform are both connected to a plurality of wall guide seats. A connecting frame is connected between a plurality of supporting columns on the same side. A plurality of groove-shaped structural members are provided on the side of the Bailey frame. The beneficial effects of the present invention are: achieving multi-functional high integration, greatly improving the working efficiency of the intelligent construction platform, reducing manual labor and the need for other external equipment, and achieving cost reduction and efficiency improvement; and convenient lifting and high safety.

The invention belongs to the field of industrial flue gas purification technology and energy conservation, and relates to a system and a method for removing condensable particulate matters through multi-field coupling synergistic enhanced condensation, the system comprises a desulfurization tower, a flash tank, a condensation structure, a liquid collecting tank and a cold water spraying layer, a slurry distribution layer of the flash tank is connected with a tower kettle of the desulfurization tower, and a flash slurry pool of the flash tank is connected with the slurry spraying layer; the liquid collecting tank, the condensation structure and the cold water spraying layer are sequentially arranged from bottom to top and are integrated in the same shell to form a secondary removal device capable of condensing particles, the secondary removal device is communicated with the top of the desulfurization tower, and flue gas channels are uniformly distributed on the liquid collecting tank; the condensation structure is formed by combining a plurality of obliquely-arranged wave-shaped condensation plates in parallel, the surfaces of the wave-shaped condensation plates are arranged in a hydrophobic mode, a plurality of protrusions and pits are arranged on the faces, facing flue gas, of the wave-shaped condensation plates, and condensable particles in the flue gas can be effectively removed.

The invention provides a wet-type dust removal device for an underground coal mine and a using method thereof, and belongs to the technical field of dust removal, and the technical scheme is that the wet-type dust removal device for the underground coal mine comprises a barrel, a mounting ring is fixed to the open end of the barrel, a filter screen is arranged in the mounting ring, and a mounting block is fixed to the outer side face of the filter screen; a connecting hole is formed in the wall thickness of the side wall of the barrel, a connecting rod is installed in the connecting hole, a driving mechanism is arranged in the barrel, and the driving mechanism can control the connecting rod to periodically impact the installation block. An air draft mechanism and a spraying mechanism are further arranged in the barrel body, the air draft mechanism can suck air into the barrel body from the filter screen, the spraying mechanism can spray water mist into the barrel body, and a flocculation mechanism is arranged at the top of the barrel body and can periodically drip a flocculating agent into the barrel body. The device is based on an automatic cleaning mode of periodic vibration, and the problem that a filter screen is blocked by dust chippings during mechanical extrusion cleaning of a traditional brush plate is solved.

The invention relates to the technical field of crucible dust collection, in particular to a dust collection structure for a neodymium iron boron sheet crucible slag removal procedure, which comprises a dust collection pipe, the upper part of the dust collection pipe is tubular, the lower part of the dust collection pipe is conical, and two spraying units which are symmetrically arranged left and right are arranged on the conical structure of the dust collection pipe; the rotatable water pipe is adopted to drive the spray pipes distributed in the circumferential direction to rotate synchronously, cooling water mist is continuously sprayed into the dust suction pipe through the two atomization nozzles on the spray pipes, active cooling is achieved, and the service life of equipment is prolonged; the rotating cylinder is adopted to drive the vortex-line-shaped pushing plate to rotate, raised dust is pushed outwards in the radial direction of the dust suction pipe through the outwards-protruding arc-shaped face of the pushing plate, dust is forced to be close to a spraying area quickly, the mixing efficiency of the raised dust and water mist is remarkably improved, the cooling effect is improved, and the dust removal efficiency is improved.

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.