370 results about "Electrostatic precipitator" patented technology

The application relates to the technical field of dust collectors, and particularly discloses a comprehensive and efficient cleaning electrostatic dust collector which comprises a dust removal box body and a dust collecting hopper which are arranged in communication with each other, a plurality of anode plates are arranged in the dust removal box body, an electrode rod is arranged between two adjacent anode plates, an anode plate cleaning mechanism which moves up and down is arranged in the dust removal box body, the anode plate cleaning mechanism comprises a lifting frame and a lifting driving assembly, a hollow strip plate which is located directly below the gap between the two adjacent anode plates is arranged in the lifting frame, a row of impact strips are arranged in the hollow strip plate, a turntable protection shell which is used for extending into the other end of the anode plate is arranged on the hollow strip plate, a turntable is arranged in the turntable protection shell, and a guide groove which is used for being matched with the end guiding column of the impact strip is arranged on the turntable. The electrostatic dust collector disclosed by the application can cover the whole anode plate through the impact and vibration, the dust attached to the surface of the whole anode plate can be shaken off, and the dust removal effect of the electrostatic dust collector during long-term use is effectively ensured.

The utility model discloses vacuum bottle electrostatic dust collection equipment which comprises a double-channel conveying device, an upper electrostatic dust collector, a lower electrostatic dust collector, an upper blowing mechanism and a lower blowing mechanism, the double-channel conveying device comprises a rack and two conveying mechanisms, and the two conveying mechanisms are symmetrically arranged on the rack front and back; each conveying mechanism comprises a feeding mesh belt, a material arranging screw rod, a feeding rotary table, a transmission clamping jaw chain group, a discharging rotary table and a discharging bin which are sequentially arranged in the conveying direction; the upper electrostatic dust collector and the upper blowing mechanism are sequentially arranged above the conveying clamping jaw chain sets of the two conveying mechanisms in the conveying direction. The lower electrostatic dust collector and the lower blowing mechanism are sequentially arranged below the conveying clamping jaw chain sets of the two conveying mechanisms in the conveying direction. According to the electrostatic dust collection equipment for the vacuum bottle, an electrostatic dust collection procedure and a clean compressed air cleaning procedure are integrated, and compared with a single dust collection procedure of a traditional filling machine, the dust collection effect is more obvious, so that the product quality is guaranteed.

The invention belongs to the technical field of converter gas treatment, and relates to a converter high-temperature vaporization flue boiler outlet gas treatment device, which comprises a first conveying pipeline, a second conveying pipeline, a cyclone dust collector and a tempering dust collector, an inlet of the first conveying pipeline is used for being connected with a coal gas outlet of a converter vaporization flue boiler, an outlet of the first conveying pipeline is connected with an inlet of the cyclone dust collector, an inlet of the second conveying pipeline is connected with an outlet of the cyclone dust collector, and an outlet of the second conveying pipeline is connected with an inlet of the tempering dust collector. An outlet of the tempering dust remover is connected with an electrostatic dust remover; the first conveying pipeline is provided with fire extinguishing equipment used for extinguishing sparks in the pipe section, and the second conveying pipeline is provided with at least one fire pipe evaporator arranged in the flowing direction of coal gas. The problem that the fire tube is blocked due to zinc liquid drops, high-temperature molten ash and the like condensed by zinc steam in the coal gas heat and mass recovery process through the fire tube evaporator is solved.

The embodiment of the invention provides an electric precipitator polar line surface defect identification method and system, and belongs to the technical field of electric precipitation. The method comprises the following steps: acquiring an original digital color image of the polar line in a corona discharge state; generating a grayscale image based on the original digital color image, and constructing a binary image for representing a brightness area according to a preset threshold; performing median filtering and mean filtering in sequence based on the binary image to construct a de-noised binary image, and performing Canny edge detection on the de-noised binary image to generate a halo edge image of a burr tip point; and based on the halo edge image, corona discharge positions and brightness information of two sharp points of each barb are extracted, and a polar line surface defect identification result is output according to a preset normal distribution mode. According to the scheme, the corona discharge characteristics can be stably extracted in complex imaging environments such as high dust and weak light, so that the polar line surface defects can be reliably identified.

The train type dust falling device comprises a front section train and a rear section train which are arranged on a track of a return airway and connected in series, a horizontal cyclone water film dust remover and an electrostatic dust remover are sequentially arranged on the front section train from front to back, and an air inlet in the front end of the horizontal cyclone water film dust remover is connected with a dust collection pipeline system. A floating dust suction hood, a transfer point dust suction hood and a plurality of working face dust suction hoods are arranged on the dust suction pipeline system, and an electrostatic generator and a counter-rotating axial flow fan are arranged on the rear section of train side by side in the left-right direction. The device can move along with the movement of the coal face, keeps a good dust collection state, and greatly improves the dust collection effect and greatly improves the air environment of the coal face of an underground coal mine in a wet dust collection and electrostatic dust collection combined mode on the premise of ensuring gas safety.

The invention discloses an electrostatic dust collection cleaning workbench for a ceramic substrate, and relates to the technical field of electrostatic dust collection, the electrostatic dust collection cleaning workbench comprises a manipulator and a box body, the manipulator is arranged on the outer side of the box body, a workbench is arranged in the box body, an output mechanism is arranged at the top of the box body, and an air curtain mechanism is arranged at the bottom of the box body; an air pump is arranged on the side of the box body and communicated with the output mechanism and the air curtain mechanism through pipelines. The ceramic substrate is placed on the workbench, the air pump extracts nitrogen from the nitrogen tank, the nitrogen is conveyed into the output mechanism and the air curtain mechanism through the air pump, the output mechanism sprays the nitrogen, the sprayed nitrogen conducts electrostatic dust removal on the ceramic substrate on the workbench, the air curtain mechanism sprays the nitrogen, and the sprayed nitrogen is dense to form an air curtain barrier. The air curtain barrier and the output mechanism are combined to form a relatively closed space, so that interference of external dust is avoided, and the electrostatic dust collection effect of the ceramic substrate is improved.

The utility model relates to textile setting machine tail gas treatment technical field, and disclose a kind of tail gas treatment equipment of textile setting machine, including filter box, the inside of the filter box is equipped with two chute, the inside sliding connection of chute has first filter mechanism.The tail gas treatment equipment of textile setting machine, by the setting of first filter mechanism and second filter mechanism, when carrying out pretreatment to tail gas, tail gas first enters filter box interior and carries out first filtration, by filter screen and activated carbon layer in filter box, impurity in tail gas is filtered and adsorbed, then part of small impurities will be transported to the processing box of side by pipeline, the high voltage power supply of both sides on the surface of processing box is started, high voltage power supply makes the electrostatic precipitator plate of side produce electric field, and the small impurities of surrounding electrification are adsorbed on its surface, to realize the effect of depth treatment to tail gas, improve the quality of tail gas treatment, avoid impurity to cause blockage and damage to subsequent processing equipment.

The invention relates to the technical field of electric precipitation, in particular to overload monitoring equipment and a monitoring method for electric precipitation equipment, and the method comprises the following steps: acquiring target production data; determining a target dust discharge amount according to the target production data; and determining the target current magnitude according to the target dust discharge amount. The method has the advantages that the neural network is used for conducting deep learning on online collected production data, a corresponding relation model between the dust amount and the power plant production data is established, the smoke dust emission amount is predicted based on the model, the average secondary current amount of the electric field is adjusted in real time on the basis, and the purposes of reducing consumption and reducing power consumption are achieved. According to the invention, the control aims of improving the reliability of the IGBT and prolonging the service life of the IGBT are fulfilled, the spark discharge phenomenon can be reduced or avoided as much as possible, equipment such as the IGBT and a trigger circuit board can be better protected, and unnecessary electric energy consumption can be effectively reduced at the same time.

The application discloses a flue gas recovery system in a calcination zinc sulfide process and relates to the technical field of zinc sulfide production. The flue gas recovery system comprises, which are connected by pipelines in sequence, a waste heat recovery boiler, a bag-type dust collector, an electrostatic precipitator, a mixed converter, a cyclone separator, an absorption tower and a spray tower. The mixed converter comprises an outer cavity, an inner cavity and a tail gas inlet pipe. The tail gas inlet pipe is connected with one end of the inner cavity. The outer cavity is provided with a medium inlet at the end far from the tail gas inlet pipe. The outer cavity is provided with a medium outlet at the end far from the medium inlet. The inner cavity is provided with a tail gas outlet pipe at the end far from the tail gas inlet pipe. An oxygen inlet and a powder inlet are installed on the side wall of the inner cavity. The inner cavity is internally provided with a turbulence column. Under the guidance of the turbulence column, the tail gas, oxygen and catalyst powder can be fully mixed, which can accelerate the reaction speed of sulfur dioxide and oxygen in the tail gas, thereby accelerating the generation speed and quality of sulfur trioxide.

The utility model discloses a sound wave soot blower for electrostatic precipitator, it includes the casing, one end fixed mounting of casing has compressed gas source, one side of compressed gas source is provided with main gas pipe, be provided with a plurality of different length's branch gas pipe on main gas pipe, one end of a plurality of branch gas pipe all is fixedly installed with intelligent control valve all to the shell and is all downward, the lower end fixed mounting of intelligent control valve has variable frequency formula resonant cavity sound wave generator, the lower end fixed connection of variable frequency formula resonant cavity sound wave generator has directional sound wave sound signal horn, directional sound wave sound signal horn is located the top of dust collecting electrode, through the branch gas pipe of different length to directional sound wave sound signal horn and variable frequency formula resonant cavity sound wave generator form asymmetric interval distribution, effectively reduced the sound wave interference between each electric field.

The utility model belongs to the technical field of dust removal devices, and particularly discloses a workshop dust removal system for putty powder production, which comprises a dust removal box, a main fan and a plurality of dust collectors, the dust collectors are arranged below the side wall of a workshop, the dust inlet surfaces of the dust collectors are obliquely arranged, and an electrostatic dust removal plate is fixedly connected in the dust removal box. Electric modules are fixedly connected to the top of the dust removal box on the two sides of the electrostatic dust removal plate, cleaning motors are fixedly connected to moving terminals of the electric modules, cleaning rolling brushes are fixedly connected to rotating shafts of the cleaning motors, an air inlet end and an air outlet end are arranged at the left end and the right end of the dust removal box respectively, a discharging pipe is arranged at the bottom of the dust removal box, and the bottom of the discharging pipe communicates with a collecting box. The inclined dust collector is arranged on the lower portion of the workshop and is suitable for collecting dust in the workshop, the electrostatic dust collection plate is arranged in the dust collection box, the dust can be well collected and treated, the cleaning rolling brush is arranged, and the dust adsorbed on the electrostatic dust collection plate can be collected through the rolling brush.

This utility model discloses a mechanical cold-press sludge treatment device, including a sludge mechanical cold-press deep dewatering system, a dried sludge incineration waste heat recovery system, and a flue gas purification system; it includes a wet sludge storage silo, a primary sludge conveying pump, a sludge conditioning machine, a secondary sludge conveying pump, a sludge distributor, a sludge cold press, a sludge feeder, a dry sludge storage silo, a sludge feeder, a sludge incinerator system, a waste heat boiler system, an SNCR in-furnace denitrification system, an electrostatic precipitator, a dry deacidification tower, an activated carbon injection system, a bag filter, a lime-gypsum wet deacidification tower, a low-temperature SCR denitrification system, an induced draft fan, and a chimney; this utility model achieves sludge dewatering and drying at room temperature through mechanical cold-pressing technology to reach the conditions for self-sustaining combustion, and then incinerates the dried sludge through a bubbling circulating fluidized bed incineration, fully recovering the heat released from sludge incineration for power generation or heating, thereby realizing the resource utilization of sludge.

The utility model relates to a kind of multi-functional high-efficiency indoor air purifier, and sub-machine system mode is used in the shell, and air state signal is transmitted by signal tower. The upper part of air purifier is two sub-machine parking spaces with automatic charging device, and the lower part is mother machine system. When air pollution is weak, sub-machine is dispatched according to the set route to start purification, and carry out inspection while passing the set target point, and feedback real-time air quality. When air pollution is strong, the air purification device of mother machine starts to work. Sub-machine system works with four air purifiers through connecting plate, and controller and detection device are installed in the center. The upper surface of air purifier is installed with power device, and power lift is provided. Mother machine system purifies air through electrostatic precipitator and formaldehyde removal module. When there are multiple pollution sources in the room, the purification degree and purification efficiency are greatly improved, and the utility model also has the functions of real-time monitoring indoor air quality, releasing negative ions, sterilization and disinfection.

The invention discloses a shield tunneling machine working face cyclone water film dust removal and electrostatic dust removal rear matching train device which comprises a cyclone water film dust remover and an electrostatic dust remover which are arranged on a front dust removal train section, and an electrostatic generator and a counter-rotating axial flow fan which are arranged on a rear dust removal train section. The front end of the electrostatic generator is connected with the electrostatic dust collector through a cable bridge, and an air outlet in the rear end of the electrostatic dust collector is connected with an air inlet in the front end of the counter-rotating axial flow fan through an air duct bridge; an air inlet at the front end of the cyclone water film dust remover is connected with a dust collection pipeline system; the dust collection pipeline system is provided with a floating dust space dust collection cover, a transfer point dust collection cover and a plurality of cutter head dust collection short pipes. The dust collection device can move along with movement of the shield working face, a good dust collection state is kept all the time, the dust collection effect is greatly improved in a wet dust collection and electrostatic dust collection combined mode, the air environment of the shield working face is fully improved, and meanwhile dust-containing air is prevented from being exhausted into the atmosphere to pollute the atmospheric environment.

The invention discloses a converter smelting determination method and device, electronic equipment and a storage medium, and belongs to the technical field of converter smelting. The method comprises the following steps: matching a first gas content in an evaporative cooler before a converter to be detected is loaded with a first preset gas content standard, and determining a matching result; based on a matching result, determining whether to start blowing of the to-be-detected converter or not; after it is determined that blowing of the to-be-detected converter is started, whether a blowing permission instruction for blowing the to-be-detected converter is generated or not is determined on the basis of the second gas content at the outlet of the electrostatic dust collector before blowing and a second preset gas content standard; and after it is determined that the blowing permission instruction for blowing the converter to be detected is generated, the oxygen lance is controlled to descend in response to the blowing permission instruction, and the blowing process is started based on the preset oxygen lance control parameters corresponding to the oxygen lance. According to the invention, standardization of blowing of converters of different steel plant equipment can be realized. And the production efficiency and the yield of steel are further improved.

This utility model belongs to the technical field of chemical production equipment and discloses a waste gas treatment device for silicone sealant production. It includes suction hoods installed at various points on the production line, which are sequentially connected via pipes to a dust collector, an incinerator, a wet electrostatic precipitator, an alkaline scrubbing tower, an induced draft fan, and a chimney. The outlet of the dust collector is connected to the inlet of the incinerator, the outlet of the incinerator is connected to the inlet of the wet electrostatic precipitator, the outlet of the wet electrostatic precipitator is connected to the inlet of the alkaline scrubbing tower, the outlet of the alkaline scrubbing tower is connected to the inlet of the induced draft fan, and the outlet of the induced draft fan is connected to the inlet of the chimney. This utility model can treat the waste gas generated during silicone sealant production, ensuring environmental and personal safety.

This utility model discloses a vibratory dust removal device for an electrostatic precipitator, comprising an electrode plate, several striking mechanisms, and a toggle mechanism. The striking mechanism includes a support base fixed to the electrode plate by bolts, an L-shaped striking hammer hinged to the support base, a striking post located below the L-shaped striking hammer and fixed to the electrode plate by bolts, and a return spring connected at one end to the L-shaped striking hammer and at the other end to the striking post. The toggle mechanism includes a reduction gearbox fixedly installed to the internal frame of the electrostatic precipitator, a drive motor mounted on the reduction gearbox and connected to the reduction gearbox at its output end, a drive shaft extending from the output end of the drive motor, a lever fixedly connected to and parallel to the drive shaft, a driven shaft fixedly installed at the other end of the lever and aligned with the drive shaft, and a driven shaft mounting seat with a built-in bearing housing fixedly installed to the internal frame of the electrostatic precipitator. This device, through the cooperation of the striking mechanism and the toggle mechanism, effectively removes dust from inside the electrostatic precipitator.

1. Name of the product in this design: Cathode wire. 2. Application of this design: Used as a cathode wire in an electrostatic precipitator. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

This invention discloses a method and system for producing zinc calcined sand from zinc-containing waste based on calorific value classification and flue gas recycling. First, the zinc-containing hazardous waste is classified according to its calorific value. High-calorific-value raw materials are self-heated and roasted in a fluidized bed roaster (1), while low-calorific-value raw materials are supplemented and roasted in a rotary kiln (2), achieving efficient energy utilization. Then, the zinc-containing flue gas dust and sludge collected through flue gas purification are returned to the rotary kiln (2) for cyclic roasting via a closed conveying device (8). Combined with a multi-stage flue gas purification process involving "dry + wet + deep treatment" (gravity settling chamber (4), scrubbing tower (5), desulfurization device (6), and electrostatic precipitator (7)), efficient zinc recovery and ultra-low emissions are achieved. The total zinc recovery rate of this invention reaches 90%-95%, reducing energy consumption by more than 20% compared to traditional processes, and the particulate matter in the exhaust gas is ≤10mg / m³. 3 SO2 ≤ 35 mg / m³ 3 The products meet industry standards, achieving the unified treatment, resource recycling, and environmental compliance of zinc-containing hazardous waste, and possess significant commercial value and social benefits.

The utility model relates to the technical field of steel smelting and discloses a steelmaking waste gas treatment device which comprises a waste gas conveying pipeline, an electrostatic dust collector is connected to the tail end of the waste gas conveying pipeline, and a water-cooling heat dissipation assembly connected to the ground is arranged on the outer side of the front end of the waste gas conveying pipeline. The exhaust gas conveying pipeline is provided with a dehumidification assembly at the tail end of the water-cooling heat dissipation assembly. The water-cooling heat dissipation assembly is arranged on the outer side of the waste gas conveying pipeline, waste gas in the pipeline can be cooled, in this way, the waste gas cannot erode the heat dissipation assembly, the service life of the assembly is prolonged, and meanwhile the heat dissipation effect is guaranteed; and by arranging the dehumidification assembly, moisture in the waste gas can be adsorbed out and discharged from the waste water pipe under the action of gravity, so that the working condition of the electrostatic dust collector is improved, and the risk of equipment corrosion can be reduced.

The application relates to the technical field of electric dust collectors, in particular to a design method of an electrode plate of an electrostatic dust collector, which comprises the following steps: S1, collecting key parameters of flue gas to be treated, analyzing dust characteristics, and determining a dust removal efficiency; S2, based on the key parameters and the dust characteristics, determining an electrode plate material, an electrode plate surface treatment process, an electrode plate structure, an electrode plate rigidity and an electrode plate spacing range; based on the dust removal efficiency, adopting an even-flow type electric dust collector efficiency model to perform back calculation, and initially determining a required total dust collection area, the even-flow type electric dust collector efficiency model being: eta = 1-exp (‑(A / Q)*ω*ζ) Wherein, eta is a target dust removal efficiency, A is the required total dust collection area (m2), Q is flue gas flow (m3 / s), omega is an effective driving speed of dust (m / s), and zeta is an electrode plate coefficient and is less than 1. While ensuring high dust removal efficiency, energy consumption and cost are maximally reduced.

The utility model provides a teppanyaki built-in internal circulation lampblack purification all-in-one machine, and belongs to the technical field of lampblack purification equipment. A filter box and an exhaust box which are communicated with each other are arranged on the mounting frame; the filter box is provided with an air inlet, a fan is arranged in the exhaust box, and an air outlet is formed in the exhaust box; a front primary filter screen, an electrostatic dust collector, an HEPA (High Efficiency Particulate Air) filter screen, an ozone removal layer, an activated carbon layer and an ultraviolet germicidal lamp are sequentially arranged in the filter box in the direction from the first end to the second end of the filter box; an oil collecting groove is formed in the bottom of the filter box. According to the utility model, through a multi-stage filtering and purifying technology, particulate matters, harmful gas and peculiar smell in the oil fume are effectively removed, and the efficient purification of the oil fume is realized. The device is arranged in the teppanyaki equipment, does not occupy extra space, and can save space. All parts are reasonable in design, easy to disassemble and clean and convenient to maintain.

This invention belongs to the technical field of gasification carbon production equipment, specifically a biomass pellet fuel gasification device, including a gasifier, a cyclone dust collector, an electrostatic precipitator, a dry filter, and a gas storage tank connected in series; it also includes a cooling and regulating mechanism. By setting up the cooling and regulating mechanism and utilizing the periodic docking of the cleaning nozzle, return pipe, and heat exchange channel, this invention achieves the directional transport of liquid and solid impurities that hinder heat transfer efficiency in the heat exchange channel. Therefore, during the long-term carbon production process, it not only maintains a stable cooling effect on the combustible gas, facilitating the subsequent separation of tar from the combustible gas, but also re-transports the cleaned products back to the gasifier, where the steam stream provides raw materials for the reduction process, and the tar can undergo high-temperature cracking again. This results in a reduction of the proportion of waste produced from biomass pellet fuel gasification carbon production and an increase in the combustible gas recovery rate.

This invention discloses an electrostatic precipitator system for dust treatment, relating to the field of rubber production technology. It includes a pretreatment unit, a main treatment unit, and a post-treatment unit. The pretreatment unit includes a cyclone alkali spray tower, the main treatment unit includes a wet electrostatic precipitator, and the post-treatment unit includes a demister filter and an activated carbon adsorber. This invention employs a tiered process: cyclone alkali spray tower pretreatment, wet electrostatic precipitator main treatment, and demister filter and activated carbon adsorber post-treatment, targeting different types of pollutants. The pretreatment stage efficiently removes oily substances, large particulate dust, and hydrogen sulfide, creating suitable conditions for the main treatment; the electrostatic precipitator stage achieves deep dust separation; and the demister filter stage intercepts residual fine dust and water mist. This multi-stage synergy ensures efficient waste gas purification.

This utility model discloses a desulfurization system for a coal-fired boiler, including a desulfurization tower connected to the flue gas duct of the coal-fired boiler via a flue gas inlet pipe. A wet electrostatic precipitator, an induced draft fan, and a chimney are sequentially installed on the flue gas outlet pipe behind the desulfurization tower. The desulfurization tower has multiple layers of spray pipes inside, and a slurry pool is located at the bottom of the tower. The slurry pool is connected to the spray pipes via a circulation pipe, which is equipped with a circulation pump. An oxidation pipe is connected to the top of the desulfurization tower, and an oxidation fan is installed on the oxidation pipe. A desulfurizing agent preparation mechanism is connected to the slurry pool at the bottom of the desulfurization tower. A slurry treatment mechanism is also connected to the bottom of the desulfurization tower via a pipe. This utility model optimizes process design, enhances material circulation, and implements precise parameter control. By utilizing spray layer atomization and forced oxidation by the oxidation fan, it ensures desulfurization effectiveness, improves the overall operating efficiency of the system, and enhances resource utilization through gypsum dewatering and filtrate recycling.

The utility model discloses a waste gas purification device for sludge treatment, which comprises a first-stage cyclone separator, a second-stage cyclone separator, a first-stage cyclone separator, a second-stage cyclone separator, a third-stage cyclone separator and a fourth-stage cyclone separator, the second-stage electrostatic dust collector is used for further removing tiny particulate matters; the wet washing tower is used for absorbing acid gas in the waste gas; the adsorption tower is used for adsorbing organic matters in the waste gas; the photocatalytic oxidation device is used for decomposing harmful substances in the waste gas; the exhaust fan is used for exhausting the purified waste gas; wherein the primary cyclone separator, the secondary electrostatic dust collector, the wet washing tower, the adsorption tower, the photo-catalytic oxidizer and the exhaust fan are arranged in sequence and are communicated in sequence. And through multi-stage purification treatment, the waste gas purification efficiency is improved.

A light source apparatus (200) includes a gas discharge stage (210) and a metal fluoride trap (300). The gas discharge stage includes an optical amplifier (206) and a set of optical elements (250, 260). The optical amplifier includes a chamber (211) configured to hold a gas discharge medium (213), the gas discharge medium outputting a light beam. The set of optical elements is configured to form an optical resonator around the optical amplifier. The metal fluoride trap is configured to trap metal fluoride dust generated from the gas discharge stage. The metal fluoride trap includes an electrostatic precipitator (320) and a packed-bed filter (400, 402, 404) disposed around the electrostatic precipitator. The packed-bed filter includes a plurality of beads configured (406, 408) to absorb metal fluoride dust (208).

This invention discloses an integrated device for coal tar separation and recovery and electrostatic precipitator in coal gangue decarbonization tail gas, belonging to the field of flue gas treatment technology. It includes a dust collector, a coal tar separation and collection hopper, a radial flow rotary disc tar collector, and an electrostatic precipitator unit. The radial flow rotary disc tar collector is installed in the coal tar separation and collection hopper and includes an inner air-flowing central pipe, an outer pipe, multiple hollow collection discs, and a rotation drive assembly. A jacket is formed between the inner air-flowing central pipe and the outer pipe for introducing a heat exchange medium. The inner cavity of the hollow collection discs communicates with the jacket. A radial exhaust channel for tail gas is provided on the inner air-flowing central pipe. During operation, the heat exchange medium is switched to keep the disc surface at a low temperature during the condensation and collection stage, where tar in the tail gas condenses and adheres to the disc surface. During the desorption and regeneration stage, the heat exchange medium is switched to a high temperature and rotates at high speed, using centrifugal force to throw the tar out and collect it. This achieves anhydrous separation and resource recovery of tar, avoiding tar contamination of the electrostatic precipitator unit.

An insulation device and a wet electrostatic precipitator having the same are provided. The insulation device comprises: an insulation device body 310 forming an insulating area 310-1, the insulation

This invention discloses a multi-directional flow field electrostatic separator, belonging to the technical field of powder classification equipment, and used in a coal mill. The static separator includes: an inner cone; an outer cone located circumferentially outside the inner cone, with a mounting plate covering the top of the outer cone above the inner cone; an axial guide vane assembly located at the lower part of the annular space formed by the inner and outer cones, used to guide the axial flow of the air-powder mixture entering the annular space; and a radial guide vane assembly located between the mounting plate and the inner cone, used to guide the radial flow of the air-powder mixture from the axial guide vane assembly. In this application, the radial and axial guide vane assemblies cooperate to guide the radial and axial flow of the air-powder mixture, respectively, enhancing the device's ability to control the fineness and uniformity of coal powder and improving the coal powder separation capacity.