3447 results about "Dust abatement" patented technology

A batch feeding-based multi-stage screening device for granular materials, comprising a housing (1). A quantification assembly (2) is installed at the top of the housing (1), a dust removal assembly (3) is installed outside the housing (1), and an anti-blocking assembly (6) is installed inside the housing (1); the dust removal assembly (3) comprises a mounting plate (305) and a fixed column (304); the mounting plate (305) and the fixed column (304) are both fixedly connected to the outside of the housing (1), a rack plate (306) is slidably connected to the outer surface of the mounting plate (305), a movable rod (311) is fixedly connected to the bottom end of the rack plate (306), a rubber piston (312) is fixedly connected to the bottom end of the movable rod (311), and a filter box (301) is fixedly connected to the outside of the housing (1). A large amount of dust on the surface of rice grains can be adsorbed, filtered and removed by means of the dust removal assembly, thereby improving the quality of rice.

The invention discloses dust removal equipment for dust explosion prevention and a dust removal method thereof, and relates to the field of dust removal equipment.The dust removal equipment comprises a dust removal box, a plurality of dust removal cloth bags in the dust removal box and a treatment mechanism for dust explosion prevention, the treatment mechanism is composed of a gas mixing assembly, a scraping assembly and a vibration assembly, and a filter bag top frame is connected with a vibration pipe frame through the vibration assembly; the gas mixing assembly is communicated with the dust removal box through a gas inlet pipe, the gas mixing assembly is used for mixing dusty gas and inert gas and preliminarily removing large-particle dust, and the scraping assembly is arranged below the gas mixing assembly and scrapes the filtered large-particle dust; and the vibration assembly is used for periodically vibrating the dust removal cloth bag after the scraping assembly is detached so as to remove fine dust attached to the inner wall of the dust removal cloth bag. Inert gas is introduced and fully mixed before entering the dust removal box, and primary large-particle dust is filtered, so that the oxygen concentration is reduced, and dust explosion is effectively prevented.

The invention relates to a coal-fired unit electrostatic dust collection energy-saving optimization method, system and equipment and a storage medium, and the method comprises the steps: obtaining historically collected system operation data of a coal-fired unit electrostatic dust collection system, and constructing an outlet NOx concentration prediction model and an outlet dust concentration dynamic model according to the system operation data; power optimization control strategies of high-voltage power supplies of all levels of electric fields in the dust removal system are obtained, a model is built based on the outlet NOx concentration prediction model, the outlet dust concentration dynamic model and the optimization control strategies, and an electrostatic dust removal energy-saving optimization model is obtained; acquiring a preset environment-friendly standard concentration, and analyzing the environment-friendly standard concentration through the electrostatic dust collection energy-saving optimization model to obtain an optimal dust collection parameter; and adjusting the current or voltage of each level of electric field in the dust removal system according to the optimal dust removal parameters. Through the constructed energy-saving optimization model, the electrostatic dust collection control system can reduce the dust emission concentration and meet the pollutant emission standard, and meanwhile, the energy consumption of the electric dust collector can be greatly reduced.

The invention relates to the technical field of safety and environmental protection, in particular to a negative-pressure circulating explosion-control dust removal method suitable for combustible dust places, which comprises the following steps: firstly, sealing a bin body and injecting carbon dioxide-nitrogen inert gas to generate a low-oxygen environment; then, a flow guide angle-adjustable cyclone separator, a dielectric barrier discharge plasma reactor and a waste heat thermo-acoustic transducer are driven to cooperatively capture dust, and sound node amplitude synthesis capture data are obtained through compressed sensing of a microphone; inputting the environment data and the capture data into a reinforcement learning process containing a micro-thermochemistry model, and outputting instructions for adjusting negative pressure pulse, inert flow, sound field intensity and cyclone geometry; in combination with distributed radio frequency imaging data, an adversarial digital twinborn model is generated to predict explosion free energy, and automatic rollback or shutdown is carried out when the explosion free energy exceeds a threshold, so that a safe, efficient and low-energy-consumption closed loop is formed.

The invention relates to the technical field of underground dust removal and ventilation, in particular to an underground driving working face ventilation and purification device and a use method.The underground driving working face ventilation and purification device comprises an air duct, a detection frame is arranged at the top of the air duct, a sensing system is arranged outside the detection frame, and a dust collection unit is arranged in an inner cavity of the air duct; compared with an existing ventilation and purification device for the driving working face, when air suction is conducted on the driving working face through an air duct, the head-on collecting assembly can accelerate the air suction speed of the air duct, on the other hand, the head-on collecting assembly can be close to the area, with large dust, of the driving face, accurate suction is achieved, and the dispersion speed of dust is reduced; dust in the air is removed from the underground driving working face through the atomization dust removal assembly; the head-on collecting assembly is close to the heading face of the dust raising position and assists the air duct in adsorbing and discharging air.

The invention discloses a gravel aggregate dust removal device, and relates to the technical field of dust removal equipment. Comprising a shell; the dust inlet is formed in the side wall of the shell; the filtering assembly is arranged in the shell, and the dust inlet is communicated with the filtering assembly; the spraying water tank is arranged in the shell, and the filtering assembly is communicated with the spraying water tank; the spraying plate assembly is arranged in the spraying water tank; the air outlet box is arranged on the side wall, away from the filtering assembly, of the spraying water tank, and the air outlet box communicates with the spraying water tank; the air outlet is formed in the top of the shell and communicates with the air outlet box. The filtering assembly comprises a filtering box arranged in the shell, a filtering conveying belt is arranged in the filtering box in a penetrating mode, and the two opposite side walls of the filtering box communicate with the dust inlet and the spraying water tank correspondingly; the spraying plate assembly comprises a partition plate horizontally arranged in the spraying water tank, and a spraying head is arranged above the partition plate. The device has the advantages that the contact area between dust and purified water is increased, the contact time between dust and purified water is prolonged, and the dust removal effect is improved.

The invention relates to the technical field of dust removal, temperature reduction and cooling, and discloses an intelligent water mist dust removal, temperature reduction and cooling control method and system fused with machine vision, and the method comprises the steps: collecting and fusing image data through a multi-mode visual perception module, and recognizing a key region; constructing a neural ejection field by using an implicit neural representation technology; developing a water mist diffusion prediction model based on the conditional generative adversarial network; pID control and reinforcement learning are combined to realize parameter adaptive optimization; visualizing a preview effect by adopting a neural rendering technology; according to the system, accurate identification and positioning of a dust high-temperature area are achieved, the water resource utilization rate and the cooling speed are improved, centimeter-level spraying precision is achieved, control delay is reduced, energy consumption is reduced, and the technical problems of blind spraying, inaccurate control and response lag of a traditional system are solved.

The invention relates to the technical field of environment-friendly production equipment control, and discloses a multi-equipment cooperative dust removal control system for an environment-friendly production line. The system comprises a dust data acquisition module for acquiring and dividing operation data flow of production line equipment; the dust state reconstruction module is used for generating a dust and airflow distribution situation map; the dedusting efficiency evaluation module is associated with the situation map to determine a dedusting level; the regulation and control strategy generation module is used for matching control strategies; and the cooperative control unit performs bidirectional verification to generate a cooperative dust removal instruction. The system is also provided with an industrial communication gateway for realizing protocol interaction, an equipment linkage module for optimizing a dust removal process, an instruction issuing module for controlling equipment operation, and a data archiving module for storing data and generating a record chain. The system can comprehensively collect dust data, accurately evaluate the dust removal efficiency, efficiently cooperate with multi-equipment dust removal, improve the dust removal effect and management level of an environment-friendly production line and reduce energy consumption, and has a good application prospect.

The utility model provides a dustproof mechanism and a gluing machine thereof, and relates to the technical field of gluing machines, the dustproof mechanism comprises a rack, a conveyor belt, a splicing type dustproof cover, a vacuum pump, an air inlet window, a dustproof filter screen, a lifting type shielding piece, a dustproof gluing roller and a feeding dust removal mechanism, the splicing type dustproof cover is used as an external dustproof cover, the dustproof gluing roller is shielded, and the dust removal mechanism is arranged on the dustproof mechanism. To-be-glued raw materials are subjected to wind blowing dust removal through the feeding dust removal mechanism at the feeding end of the conveying belt, the to-be-glued raw materials subjected to dust removal enter the splicing type dust cover from the feeding and discharging gap, the lifting type shielding pieces on the front side and the rear side of the splicing type dust cover descend to shield the feeding and discharging gap, and external dust entering is reduced; and the vacuum pump is started to discharge dust entering the spliced dust cover due to feeding in time, cleaner air is introduced, and the amount of dust adhering to the surfaces of the gluing roller body and the to-be-glued raw materials is greatly reduced.

The invention discloses an intelligent dust fall device for a building construction site, and belongs to the technical field of dust removal equipment.The intelligent dust fall device for the building construction site comprises a dust fall mounting box, a detachable water flow pushing mechanism is mounted on one side of the dust fall mounting box, and a linkage mechanism is arranged below the dust fall mounting box; a spraying adjustable mechanism is arranged below the linkage mechanism; a torrent mounting plate is fixedly mounted in the dust fall mounting box, and a plurality of groups of circulating grooves are uniformly and fixedly connected to the circumference of the lower end of the dust fall mounting box; a mounting column is fixedly mounted at the lower end of the spraying adjustable mechanism, a supporting frame is fixedly connected to one side of the mounting column, and reinforcing ribs are fixedly connected to the supporting frame. By arranging the spraying adjustable mechanism, water mist generated by the atomizing nozzle is pushed to be more uniformly diffused all around, the dust falling coverage range is expanded, and by designing the air spraying pipelines with different angles, the collision opportunity of dust and the water mist is increased, and the probability that the dust is adsorbed by the water mist is improved.

A method for predicting unsteady filtering resistance of a dry type dust removal system comprises the following steps: constructing a loading fiber layer filtering resistance model by utilizing the pressure loss of a fiber collecting body; constructing a relation model between the resistance on the cleaning fiber and the resistance acting on the loaded fiber trapping body; constructing a relation model among the diameter change rate of the fiber capturing body, the filtering efficiency and the filtering time parameter; the influence of particle deposition non-uniformity is eliminated through an integral method, and a loading fiber layer filtering resistance model is solved; according to the Darcy law, constructing a relation model among the filtering resistance, the dust layer thickness and the dust layer permeability coefficient when the dust-containing airflow flows through the dust layer; a dust layer filtering resistance model is constructed and solved through the equivalent relation between the deposited dust mass and the captured dust mass; and based on the fiber layer filtration resistance model and the dust layer filtration resistance model, obtaining an unsteady state filtration resistance prediction model of the dry dust removal system. According to the method, the accuracy and practicability of unsteady filtering resistance prediction can be improved.

The invention discloses an efficient wet-type cyclone dust collector with dust falling and carbon sequestration functions. The efficient wet-type cyclone dust collector comprises a dust collection chamber with a closed structure, a microorganism culture chamber, a water purification chamber and a sewage chamber, the front end and the rear end of the dust removal chamber communicate with the outside through an air inlet pipe and an air outlet pipe correspondingly, and an axial flow fan and a cyclone separator are fixedly arranged in the dust removal chamber. A microorganism culture tank is arranged in the microorganism culture chamber and comprises a liquid inlet, a liquid outlet, a stirring mechanism and a cleaning mechanism. According to the efficient wet-type cyclone dust collector with the dust falling and carbon sequestration functions, through mutual cooperation of all the parts, a microbial dust removal technology is integrated on the basis of an existing wet-type dust removal technology, energy consumption can be reduced, the dust treatment effect can be improved, greenhouse gases such as carbon dioxide can be captured and fixed, and the dust falling and carbon sequestration functions are achieved. Therefore, air pollution is reduced, the comprehensive energy utilization efficiency of the dust removal system can be improved, and a more environment-friendly and energy-saving solution is provided for the industrial production process.

The invention relates to the technical field of plate polishing, and provides a polishing device for decorative plate production, which comprises a frame body, a dust removal cover body is arranged on the frame body, a plate body input channel and a plate body output channel are oppositely formed in the dust removal cover body, and a polishing conveying assembly is arranged in the dust removal cover body and is used for polishing a plate body; the top of the dust removal cover body is communicated with a dust discharge pipe; the number of the dust overflowing prevention assemblies is two, and the dust overflowing prevention assemblies are arranged in the plate body input channel and the plate body output channel correspondingly. According to the decorative plate polishing device, the dust overflowing prevention assemblies are arranged in the plate body input channel and the plate body output channel correspondingly, and the gap air inlet design between the channels and the plate body is combined, so that the dust overflowing probability at the gap of the channels is reduced when the plate body passes through; the technical problem that the working environment is affected due to the fact that dust easily overflows when a polishing device in the related technology polishes a plate body is solved.

The invention relates to the technical field of energy utilization and energy conservation and emission reduction, and discloses a sludge incineration tail gas treatment system and an energy storage heat exchanger. The system comprises a tail gas purification module, a carbon capture and solidification module, a circulating power generation module, an air dehumidification heat pump module and a cascade energy storage module. The tail gas purification module is used for sequentially carrying out particulate matter filtration, desulfurization, electrostatic dust collection and denitration treatment on tail gas discharged by the incinerator; the carbon capture and solidification module is used for collecting CO2 in the tail gas through a temperature swing adsorption and low-temperature cooling technology; the circulating power generation module is used for converting low-grade waste heat in the tail gas into electric energy through an organic Rankine cycle technology; the air dehumidification heat pump module is used for dehumidifying and preheating air entering the incinerator; the stepped energy storage module is used for conducting graded recovery and management on waste heat of different temperature zones in tail gas in the purification process. According to the system, various pollutants in the tail gas are efficiently removed, and waste heat of different temperature grades is recycled and utilized in a graded mode.

The invention discloses a primary and secondary fusion complete ring main unit with a dust removal function, and belongs to the technical field of ring main units. When a sleeve is pressed downwards to descend under the action of external force, the end of the sleeve is in contact with a first spring and extrudes the first spring, the first spring generates elastic deformation, and when thrust for pressing the sleeve downwards is dissipated, the first spring deforms; elastic deformation of a first spring recovers, thrust is generated to push a lower connecting plate to ascend and rotate, the lower connecting plate is matched with an upper connecting plate to twist a hydrophobic filter screen, the hydrophobic filter screen can extrude a wet dust layer when twisted, moisture in the dust layer can be removed easily through extrusion, binding force between dust particles is weakened, and the dust particles can be prevented from falling off. Meanwhile, the twisting of the hydrophobic filter screen also enables the dust layer to be subjected to shear force, and when the action of the force is greater than the binding force between the dust particles or between the dust particles and the hydrophobic filter screen, the dust layer can be stripped from the surface of the filter bag and fall off.

The utility model discloses a dust removing and sticking device for polaroid processing, which relates to the technical field of polaroid processing dust sticking and comprises a support frame, a conveying unit is arranged on the inner side of the support frame, a dust sticking unit is arranged on the top surface of the support frame, a dust blowing unit is arranged on the top surface of the dust sticking unit, and the dust sticking unit comprises a mounting frame. The mounting frame is fixedly connected to the inner side of the top face of the supporting frame, the scraping and cleaning unit is arranged on the inner side of the mounting frame, the scraping and cleaning unit comprises a mounting groove, the mounting groove is formed in the inner side of the mounting frame, and a dust collection box is slidably connected to the inner side of the mounting groove. According to the polaroid dust sticking device, through the arrangement of the mounting groove, the dust collecting box, the telescopic rod, the third spring, the attaching block and the scraping plate, the effect of conveniently scraping and cleaning dust stuck to the dust sticking roller is achieved, the working efficiency of polaroid dust sticking is improved, meanwhile, the dust is conveniently cleaned, and meanwhile the practicability of the device is improved.

The invention relates to the field of dust removal, and discloses a woodworking central dust remover which comprises a dust remover body, a filter assembly and a dust removal assembly arranged in a filter bag, a dust removal cavity and a dust suction cavity are formed in the dust remover body, an air chamber valve is arranged between the dust removal cavity and the dust suction cavity, the air chamber valve separates the two cavities, an air inlet is formed in the side wall of the dust removal cavity, and an air outlet is formed in the side wall of the dust suction cavity; the linkage ash removal mechanism is constructed by arranging the supporting rods capable of expanding in the radial direction in the filter bag and the tightening ring connected to the bottom. The multiple supporting rods synchronously expand outwards under the action of high-pressure airflow to drive the tightening ring to be screwed, so that the filter bag structure is expanded and twisted to form a composite disturbance area covering the inner wall and the bottom, the dust attachment state is effectively destroyed, and the filter bag structure is particularly suitable for cleaning the bottom, wrinkles and other traditional areas difficult to clean.

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 utility model provides a dust removal cleaning device for preventing and treating atmospheric environmental pollution, and relates to the field of atmospheric environmental pollution prevention and treatment. The dust removal cleaning device for atmospheric environmental pollution prevention and control comprises a filter bin, an air inlet is formed in the front end of the filter bin, an air suction port is formed in the rear end of the filter bin, the bottom of the filter bin is in through connection with a liquid drainage bin, and a fixing frame is rotationally connected to the center position in the filter bin. When the dust removal and cleaning device for atmospheric environmental pollution prevention and control is used, a filter bin filters air through an air inlet and an air suction port, filtered impurities are attached to the surface of the front end of a filter plate, at the moment, a servo motor drives a power wheel to rotate by a circle, the power wheel drives an adjusting wheel to rotate by 90 degrees, and the adjusting wheel drives a fixing frame to rotate; the fixing frame drives the filter plate to rotate, the side, attached with impurities, of the filter plate faces downwards, at the moment, the filter plate is in a horizontal state, meanwhile, the fixing frame drives the baffle to block the air inlet and the air suction port of the filter bin, and the waste gas blocking device has the advantage of blocking waste gas.

The utility model relates to the field of ore grinding equipment, in particular to ore grinding equipment with a dust falling structure, which comprises a bottom plate, supporting legs, a grinding box, a feeding pipe, a discharging pipe, a coaxial reversing assembly, a crushing and grinding assembly and a dust removing assembly, through cooperative work of the coaxial reversing assembly, the crushing and grinding assembly and the dust removal assembly, the integrated process of ore crushing, fine grinding and efficient dust removal is achieved, through combined operation of the coaxial reversing assembly, the crushing and grinding assembly and the dust removal assembly, the stability in the crushing and grinding process is guaranteed, the crushing effect is improved through reverse rotation, and the crushing efficiency is improved. The dust removal assembly removes dust generated in the whole process, cleanness of the working environment and health of operators are maintained, environmental pollution is effectively reduced, in addition, when the two rotating shafts rotate, the first crushing blade and the second crushing blade can cut ore in the opposite directions, and therefore strong shearing force is generated, and the crushing efficiency is improved. Therefore, the ore can be crushed more effectively and further refined.

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 discloses a stiffening plate fitting, positioning and dust removing mechanism which comprises a fixed plate fixed to a workbench, a positioning frame which is hollow in the middle and is of a square structure is arranged at the top of the fixed plate, the four side faces of the inner side of the positioning frame are inclined faces, and moving grooves are formed in the front side edge and the rear side edge, opposite to each other, of the positioning frame. Placing grooves are formed in the left and right opposite side edges of the positioning frame, connecting rods are arranged at the two ends of the electrostatic dust collection rod, and the two ends of the electrostatic dust collection rod are in sliding insertion connection with the two moving grooves of the positioning frame correspondingly. The device is used for reinforcing and attaching the plate, automatic positioning and position adjusting are achieved when the plate moves to the bearing plate, the attaching accuracy is improved, reinforcing and attaching of various reinforcing plates at different positions of the same plate are achieved at the same time, the dust collection paste can adsorb and collect dust falling after an electrostatic dust collection rod stops working, and the device is simple and practical.

A method for predicting the unsteady filtering efficiency of a dry-type filtering dust removal system comprises the following steps: calculating the filtering efficiency of single particles according to the particle capturing efficiency caused by the free diffusion effect, the direct interception effect and the inertial collision effect of dust; constructing a relation model between the dust layer filtering efficiency and the unit layer filtering efficiency; constructing a relation model among the unsteady filtering efficiency, the fiber layer filtering efficiency and the dust layer filtering efficiency of the dry type filtering dust removal system; according to the law of conservation of materials, constructing a relation model between the unsteady filtering efficiency and the filtering time when the dust layer thickness is specific; according to the particle size distribution percentage, constructing a relation model between the unsteady-state filtering efficiency of the single-particle-size dust particles and the unsteady-state filtering efficiency of the multi-dispersed-phase dust; and based on the obtained relation model, obtaining an unsteady-state filtering efficiency prediction formula of the dry-type filtering dust removal system. According to the method, the universality and accuracy of the method for predicting the unsteady filtering efficiency of the dry-type filtering dust removal system can be improved.

The invention provides a dust removal method and system for a surface galvanizing automatic production line, and the method comprises the steps: installing air quality sensors at all key points in a workshop of the surface galvanizing automatic production line, and monitoring the dust concentration, humidity, temperature and other key parameters in the air in real time; the air quality in the workshop is evaluated according to the key parameters, and if it is monitored that the air dust concentration of a certain workshop area exceeds a preset safety threshold value, the workshop area is automatically adjusted to a dust removal mode; judging that a dust removal mode needs to be started, sending an instruction to dust removal equipment, starting a corresponding dust removal program, and starting an industrial dust collector or a spraying system; after the dust removal equipment starts to work, the air quality sensor continues to monitor the air quality and provides real-time feedback. The system comprises a parameter acquisition module, a quality evaluation module and a dust removal execution module. According to the invention, real-time monitoring, intelligent evaluation, automatic dust removal and continuous optimization of air quality are realized.

The invention relates to a dust compensation-based temperature imaging detection system and method for dust removal equipment. According to the system, an infrared thermal imager module is mounted on one side of the exterior of the dust removal equipment; the dust concentration sensor module is mounted outside the dust removal equipment; the data transmission module is respectively connected with the thermal infrared imager module, the dust concentration sensor module and the data processing and control module; the data processing and control module comprises a data acquisition unit, a data preprocessing unit, a dust compensation unit, a temperature imaging generation unit and an alarm and control unit; and the data processing and control module is respectively connected with the display and alarm module and the dust removal equipment. The method comprises the following steps: based on temperature data and current dust concentration data, obtaining compensated temperature data through a temperature compensation algorithm; and generating and displaying a multi-color temperature imaging image according to the compensated temperature data, comparing the multi-color temperature imaging image with a set temperature threshold value, and controlling the display and alarm module to give an alarm when the multi-color temperature imaging image is abnormal. According to the system and the method, the temperature of the dust removal equipment can be accurately monitored.

The invention provides an intelligent dust remover control method and system based on electrostatic adsorption. The method comprises the following steps: acquiring dust concentration, temperature and humidity and particulate matter impedance spectrum data of a working environment, screening key measurement points, applying an alternating electric field to obtain an impedance phase difference map, performing frequency spectrum consistency verification on the impedance phase difference map and the impedance spectrum data after temperature and humidity compensation, and calculating conductivity discrimination parameters of dust with different particle sizes; deploying a parallel metal plate adsorption array containing an insulating dielectric layer, and adjusting the plate spacing to change the electric field intensity; generating a resistivity space distribution thermodynamic diagram based on the conductivity discrimination parameters, and cooperating with drive board spacing adjustment and voltage output according to the resistance gradient change of the insulation and conductive dust gathering area and the migration path; and a measurement point location screening strategy is updated in combination with the spacing adjustment amplitude and the voltage change rate, and the impedance spectrum precision is optimized. Precise identification of insulation and conductivity multi-mode dust and dynamic electric field self-adaptive adsorption are achieved, the dust removal efficiency of a complex environment is improved, and energy consumption is reduced.

The utility model provides a thermal power plant cloth bag convenient for dust removal, which relates to the field of dust removal cloth bags and comprises a support, a plurality of monomer structures are mounted in the support, every two monomer structures are in close contact, each monomer structure comprises two fixing rings and a short cloth bag, the two fixing rings are fixedly connected with the short cloth bag, and the short cloth bag is fixedly connected with the support. Each short cloth bag is corrugated, and the outer surface of each short cloth bag is sleeved with a tightening ring. According to the thermal power plant cloth bag facilitating dust removal, the multiple short cloth bags are of a gradient pore structure, surface pores are slightly smaller to guarantee the filtering precision, internal pores are gradually enlarged to facilitate dust falling, and the short cloth bags are corrugated, so that the surface area is increased, meanwhile, airflow and dust distribution is changed, dust removal is facilitated, and the dust removal efficiency is improved. And by arranging the multiple sets of nuts, when the multiple sets of nuts are taken out, rapid replacement is facilitated, and therefore the problems that traditional dust removal and ash removal are difficult, and replacement is not easy are solved.

The invention discloses a protective fence with a dustproof function and a using method, and relates to the technical field of protective fences. The protective fence with the dustproof function comprises a mounting base and a protective fence body, a mounting top cover is fixedly mounted at the top end of the protective fence body, and an air inlet pipe head is fixedly mounted on the front face of the mounting top cover; the operation method comprises the following steps: S1, electrifying the device; an electrostatic dust collection structure composed of the discharge electrode and the dust collection electrode is connected with high-voltage direct current, and the air exhaust flow guide fan is connected with a construction site circuit to extract flying dust generated on a construction site. In the foundation pit excavation process, air mixed with dust is rapidly sucked into an air inlet pipe head through an air suction flow guide fan and then enters an electrostatic dust removal structure, dust in the air is rapidly removed, the air is rapidly discharged in cooperation with a dust filter screen column, the dust cleaning speed in the foundation pit excavation process is increased, and the dust removal efficiency is improved. And the dust treatment effect of the whole device is ensured.

The invention relates to a method for cooperatively treating chromium-containing sludge by using a waste dust collecting bag and blast furnace dust. The method comprises the following steps: roasting the waste dust collecting bag to obtain roasted ash of the waste dust collecting bag; mixing the roasting ash and blast furnace fly ash; adding the mixed material 1 into the chromium-containing waste liquid, and carrying out plate-frame pressure filtration to obtain a mixed material 2; the method comprises the following steps: cutting iron ore into blocks, drying, roasting after drying, quickly water-cooling a roasted product, grinding after water-cooling, and magnetically separating a ground product to obtain spinel iron ore concentrate containing ferrochrome and low-chromium tailings. According to the method, the waste dedusting cloth bag and the blast furnace dedusting ash are used as curing agents, curing of heavy metal chromium in the chromium-containing sludge is achieved, the leaching rate of hexavalent chromium and total chromium in the obtained product is far lower than the standard limit value, harmless treatment of the chromium-containing sludge is achieved, the purpose of treating waste with waste is achieved, the obtained ferrochrome spinel can be recycled through magnetic separation, and the method is environmentally friendly. The produced low-chromium tailings can be directly buried or used as building materials.

The utility model relates to a dry quenching primary dust remover structure which is characterized in that a layered dust removal device is arranged in a dust remover body and consists of parallel interlayers, small interlayer ash hoppers and interlayer ash discharge channels; an inlet dust removal channel is arranged between the dust remover inlet and the dust remover ash hopper, and an outlet dust removal channel is arranged between the dust remover ash hopper and the dust remover outlet; the parallel interlayer divides the inlet dedusting channel and the outlet dedusting channel into an upper layer and a lower layer; the middle part of the parallel interlayer is connected with an interlayer ash discharge channel through an interlayer small ash hopper; a bottom outlet of the interlayer ash discharge channel is communicated with an ash discharge port of the dust remover; according to the utility model, the dust removal efficiency of the primary dust remover is improved, and meanwhile, the dust removal convenience is ensured.