35results about How to "Efficient dust removal" patented technology

The utility model relates to the technical field of automobile decorating part production, and discloses an automobile decorating part spraying line electrostatic dust collection device which comprises a supporting frame, a spraying transmission line is installed above the supporting frame, a supporting cover is fixedly connected to the upper surface of the supporting frame, and a dust collection assembly is installed on one side of the interior of the supporting cover. A filtering assembly is mounted on the upper surface of the supporting cover; the dust removal assembly comprises a supporting plate and a first ion wind bar, the two ends of the first ion wind bar are fixedly connected to the inner wall of the supporting plate, a hydraulic rod is fixedly connected to the upper surface of the supporting cover, the output end of the hydraulic rod is fixedly connected to the upper surface of the supporting plate, and a first limiting rod is fixedly connected to one side of the outer wall of the supporting plate. According to the utility model, the decorating parts are conveyed to the lower part of the supporting cover through the spraying conveying line, and the fan I blows clean air flow for preliminary dust removal; the hydraulic rod drives the supporting plate and the first ion wind bar to ascend and descend, the angle of the second ion wind bar is adjusted, efficient dust removal is achieved, and the practicability of the device is improved.

The utility model discloses an integral dust removal system for a workshop, which relates to the technical field of dust removal and comprises a dust collection pipeline, a bag-type dust remover, an air compressor, an induced draft fan, a spray tower and an exhaust pipeline, the dust collection pipeline is connected into a plurality of stations, an air inlet of the bag-type dust remover is connected with the dust collection pipeline, and the air compressor is communicated with the bag-type dust remover through a pipeline. An air inlet of the induced draft fan is communicated with an air outlet of the bag-type dust collector through a pipeline, an air inlet of the spray tower is communicated with an outlet of the induced draft fan through a pipeline, and the exhaust pipeline is communicated with an air outlet in the top of the spray tower through a pipeline. According to the utility model, cloth bag dust removal and spray tower dust removal are carried out in sequence, high-efficiency dust removal and deep purification can be realized through graded purification, the ultra-low emission requirement is met, and gaseous pollutants are removed at the same time; the system stability is improved; and dust escape and secondary pollution are prevented. The included angle between the dust collection pipeline and the horizontal plane can prevent smoke dust from accumulating in the pipeline due to horizontal laying of the pipeline.

This utility model relates to the field of electrical equipment dust removal technology, and discloses an electrical dust collector for thermal power plants, including a collection box, a movable plate, and a blower. An upper plate parallel to the movable plate is fixed above it. An air pump is installed between the upper plate and the movable plate. The outlet of the air pump is connected to the blower via a flexible hose. Multiple air outlet pipes communicating with the interior of the blower are evenly connected to the side of the blower. A top cover is placed on top of the collection box, and a side opening communicating with the interior is opened on the surface of the top cover. A bottom plate is horizontally fixed to the lower interior of the collection box, and a downward-blowing fan is installed between the bottom plate and the bottom of the collection box. This utility model's technical solution, by combining a blower for blowing away dust and a collection box for collecting dust, utilizes the air from the air pump to remove dust from electrical equipment, and the blown-down dust can be quickly collected into the collection box. It achieves efficient dust removal through air blowing while simultaneously preventing dust diffusion during the dust removal process.

The utility model discloses dust removal equipment for crushing bentonite, which comprises a dust removal cover, a flow guide pipe, a cyclone separator and a bag-type dust remover, and a dust outlet of the dust removal cover is connected with a tangential air inlet of the cyclone separator through the flow guide pipe; a top outlet of the cyclone separator is communicated with an air inlet of the bag-type dust collector through a pipeline; a conical dust collecting hopper at the bottom of the cyclone separator is connected with a dust collecting box through a dust discharging valve; a filter bag group is arranged in the bag-type dust collector, a pulse dust cleaning device is arranged at the top of the bag-type dust collector, and the outlet end of the bag-type dust collector is connected with an induced draft fan through an air pipe; through the combination of the cyclone separator and the bag-type dust collector, the cyclone separator is firstly used for pre-separation, most dust particles are separated out, and then the bag-type dust collector is used for further filtration, so that the overall dust collection efficiency is improved, the cyclone separator is used as a pre-separation device, large-particle dust can be removed in advance, and the dust collection efficiency is improved. The amount of dust entering the bag-type dust collector is reduced, and the loss speed of the filter bag is effectively reduced.

This utility model relates to the field of dust collector technology, and in particular to a water curtain dust collector, comprising a tower body, a Venturi tube connected to the lower side wall of the tower body, a screen installed on the inner side of the lower part of the tower body, several baffles installed below the screen, and a water collection tank connected to the lower end of the tower body. Both the screen and the baffles are hollow. A sedimentation tank is connected to the water collection tank. The upper outer wall of the sedimentation tank is connected to the screen and baffles via a water supply and heating pipeline. The outlets of the screen and baffles are connected to the water collection tank via a return water pipeline. This water curtain dust collector, by using a hollow screen and baffles and constructing a water circulation heating system using a water collection tank, sedimentation tank, water supply and heating pipeline, and return water pipeline, achieves several advantages. Firstly, the heated circulating water flows within the screen and baffles, increasing their surface temperature and effectively preventing the solidification and accumulation of sticky particles due to temperature reduction, thus solving the problem of flow channel blockage and extending the equipment maintenance cycle.

The invention discloses a petrochemical waste gas treatment device which comprises a pipeline for conveying waste gas, the pipeline comprises a straight pipe section, a throat pipe section and an output section, a tower spring-shaped circulating water pipe is arranged in the straight pipe section, the circulating water pipe is provided with a water inlet and a water outlet which extend outwards, and the inner diameter of the throat pipe section is smaller than that of the straight pipe section and that of the output section. A washing ring pipe is arranged on the outer wall of the throat pipe section, a plurality of nozzles are fixed to the circumference of the washing ring pipe in an array mode and penetrate through the pipe wall to extend inwards, the output section is communicated with the outer wall of the treatment tower, a particle capturing mechanism is arranged in the treatment tower, and the top of the treatment tower is communicated with a cyclone dust collector through a conveying pipeline. An exhaust pipe is arranged at the top of the cyclone dust collector; the petrochemical waste gas treatment device can effectively cool, dedust and desulphurize waste gas during use, prevents dust-containing and sulfur-containing waste gas from being directly discharged to influence the environment, and is suitable for popularization and use.

The utility model provides a kind of thermal insulation board processing cutting device, including workbench, the upper side of workbench is equipped with two installation grooves, the inside of installation groove is provided with clamping mechanism, the side of workbench is fixedly connected with L-shaped support plate, the upper side of L-shaped support plate is equipped with two hydraulic cylinders, the output end of two hydraulic cylinders extends to the lower side of L-shaped support plate and is fixedly connected with a fixed plate, the lower side of fixed plate is equipped with cutting knife, the lower side of fixed plate is slid and elastically cooperated with two pressing plates, two pressing plates are arranged on the both sides of cutting knife. By setting collection shell, negative pressure fan, cutting groove, drawer box and cleaning mechanism, the cutting debris generated is dropped into collection shell through cutting groove, the suction force generated by negative pressure fan quickly sucks the scattered debris, avoids accumulation workbench, at the same time, cleaning mechanism prevents filter screen blockage, ensures that negative pressure fan continues efficient work, realizes effective dust removal and cleaning.

The utility model provides a desulfurization, denitrification and dust removal integrated device which comprises a treatment tower, a dust removal box is fixedly mounted on the inner wall of the bottom end of the treatment tower, a first liquid storage tank is fixedly mounted at the top end of the dust removal box, two second liquid storage tanks are fixedly mounted on the inner side wall of the treatment tower, and top umbrellas are fixedly mounted on the inner side walls of the two second liquid storage tanks. The top umbrellas and the bottom umbrellas are arranged, the bottom ends of the top umbrellas are communicated with a plurality of communicating pipes, the bottom ends of the communicating pipes are communicated with a bottom umbrella, an annular grid is fixedly installed on the outer side of the bottom umbrella, and the outer side of the annular grid is fixedly connected with the inner side wall of the treatment tower. According to the smoke dust treatment device, smoke dust can firstly flow from top to bottom through the bottom umbrella, so that the smoke dust flows from bottom to top to the outlet from the top umbrella after penetrating through the annular grid, the time of the smoke dust and desulfurization and denitrification liquid can be prolonged in a limited space after the smoke dust flows through the bottom umbrella and the top umbrella, and the smoke dust treatment efficiency of the whole device is improved.

The utility model discloses a kind of air knife dust removal devices, it includes cloth guide roller group, first dust collection mechanism, second dust collection mechanism, first air knife assembly and second air knife assembly, cloth guide roller group includes first cloth guide roller and second cloth guide roller, first dust collection mechanism and first air knife assembly are installed in the front side of fabric between first cloth guide roller and second cloth guide roller and are aligned with fabric setting, second dust collection mechanism and second air knife assembly are installed in the reverse side of fabric between first cloth guide roller and second cloth guide roller and are aligned with fabric setting, and the air outlet of first air knife assembly is towards the dust collection port of first dust collection mechanism, the air outlet of second air knife assembly is towards the dust collection port of second dust collection mechanism. It is penetrated by first air knife assembly and second air knife assembly to the front and back of fabric and carries out penetrating blowing dust removal, then by first dust collection mechanism and second dust collection mechanism dust collection, improve cleaning effect, realize the efficient dust removal of fabric.

The utility model discloses a dust removal device of a mining unloading station, which relates to the technical field of mining equipment and comprises an unloading station body and a dust removal box, one side of the unloading station body is provided with the dust removal box, the top end of the dust removal box is fixedly provided with a fan box, one side of the dust removal box is connected with a dust-gas pipeline in a circulating manner, and the dust-gas pipeline is provided with a fan. And an air volume adjusting valve is fixedly mounted in the middle of the dust-gas pipeline. The fan box of the dust removal device of the mining unloading station extracts dust-containing gas generated by the unloading station body through the dust-gas pipeline and the dust hood, the air volume adjusting valve on the dust-gas pipeline can adjust the air volume, the dust-containing gas enters the dust removal box to be treated, dust is discharged from the bottom dust discharge port, and purified gas is discharged from the purified gas outlet. The water pump above the water tank conveys water to the water supply pipe annularly distributed on the outer side of the dust suction hood through the connecting water pipe and the water supply pipe, then the water is sprayed out through the multiple mist spray heads on the inner side to spray and reduce dust in the dust suction hood, the fixing frame is used for stabilizing the water supply pipe, efficient dust removal is achieved, and the unloading station environment is improved.

This invention relates to the field of dust removal equipment technology, and discloses an environmentally friendly dust removal device for building decoration engineering. The main body shell includes a cavity formed within itself; the adjustment mechanism includes a flow guiding unit disposed within the cavity and an air inlet duct disposed outside the cavity. The flow guiding unit includes a spiral tube, a limiting plate fixedly connected to the spiral tube, and several fixing threads fixedly connected to the limiting plate. The flow guiding unit guides the airflow entering the cavity to move spirally along the spiral tube and the fixing threads. This environmentally friendly dust removal device for building decoration engineering, through the coordinated guidance of the airflow by the spiral tube and the fixing threads, and the physical obstruction formed on both sides of the airflow by the limiting plates, not only strengthens the spiral strength of the airflow but also shortens the movement distance of fine dust, thus solving the defects of existing technologies where fine dust is difficult to effectively capture due to low centrifugal force and long movement distance.

The application discloses an argon recovery system and method for graphene production waste gas, and belongs to the technical field of industrial gas recovery and purification, comprising a pretreatment unit, a compression unit and a purification unit; the pretreatment unit comprises a spray tower and a basket filter; three layers of spraying units and two layers of dust separation units are arranged in the spray tower; from the bottom of the tower upwards, the structure comprises a first spraying layer, a first separation composite layer, a second spraying layer, a second separation composite layer and a third spraying layer in sequence; by the above mode, the spray tower structure with the multistage purification structure is designed, the spray tower structure is used as the front pretreatment unit, most of the graphene dust can be efficiently removed, the problem of the dust blockage of the subsequent argon purification system is solved fundamentally, and the equipment maintenance cost is reduced.

The utility model discloses a computer dust adsorbing and removing assembly, and relates to the technical field of dust removing assemblies, the computer dust adsorbing and removing assembly comprises a middle layer plate, an upper cover plate and a bottom cover plate, the four corners of the middle layer plate are all rotatably connected with rotating shafts in an inserted mode, and each rotating shaft comprises three first rotating shafts and a second rotating shaft; a first transmission chain wheel and a second transmission chain wheel are fixedly connected to the shaft wall, located below the middle-layer plate, of the three first rotating shafts and the shaft wall, located below the middle-layer plate, of the second rotating shaft in a sleeving mode correspondingly, and the first transmission chain wheel and the second transmission chain wheel are in transmission connection through a transmission chain belt. The masking paper feeding device has the advantages that masking paper is discharged through the unwinding roller, the masking paper is guided by the rubber guide roller to move close to the surface of a computer, and dust is effectively adsorbed and removed. The adhesive force between the masking paper and dust is strong, and no adhesive residue is left, so that the thoroughness and safety of dust removal are ensured.

The utility model belongs to the technical field of dust removal of concrete mixing plants, and provides a watering dust removal device of a concrete mixing plant, which comprises a base and a watering pipe, the base is transversely arranged at the top of a stock bin partition wall, the length direction of the base is consistent with that of the stock bin partition wall, and supports are arranged on two sides of the top of the base. The two supports can synchronously slide in the length direction of the base, and the moving directions of the two supports are opposite. The water sprinkling pipe comprises a shaft pipe and a bent pipe, the shaft pipe is rotationally installed at the top of the support, the length direction of the shaft pipe is consistent with the length direction of the base, the water inlet end of the shaft pipe is connected with a soft pump pipe, and the two ends of the bent pipe are in butt joint with and communicated with the two ends of the shaft pipe respectively. The spraying range can be expanded by changing the transverse displacement distance of the water spraying pipe, large-area dust covering can be guaranteed, accurate spraying can be conducted on a dust area by changing the elevation angle of the water spraying pipe, and therefore efficient dust removal is conducted.

The dust filtering device of the grain elevator comprises a grain distributing box and a dust removing mechanism, a grain conveying mechanism is fixedly arranged at the top end of the grain distributing box, a first supporting frame is fixedly arranged on the periphery of the lower end of the grain distributing box, and a second vibration motor is fixedly arranged on one side of the grain distributing box. A volute fan is fixedly arranged on one side of the dust removal mechanism, a first vibration motor is fixedly arranged on the other side of the dust removal mechanism, a dust removal pipe is fixedly arranged at the position, close to the lower end of the first vibration motor, of the other side of the dust removal mechanism, a collection box is arranged at the bottom end of the dust removal mechanism, and second supporting frames are fixedly arranged on the periphery of the lower end of the dust removal mechanism. The dust removal mechanism comprises a shell. The grain distribution box has the beneficial effects that most dust of grains can be stripped in front of a dust removal system through the grain distribution box, the device is provided with a quick disassembly structure, the filter screen can be disassembled and assembled without tools, and daily cleaning and maintenance are facilitated.

This utility model discloses a dust removal mechanism for an automatic cutting bed, comprising: a cutting bed, an automatic cutter, a pair of retractors, a collection box, and a dust collection structure. This utility model relates to the field of cutting bed dust removal technology. During the operation of the cutting bed, the automatic cutter cuts the fabric on the retractors, with a concave mounting bracket positioned above it. The sealing hydraulic push rod inside the sealing concave block extends and retracts, causing the sealing convex block to rise and fall stably along the sealing concave block, squeezing and sealing the cutting bed to effectively prevent dust leakage. During cutting, the auxiliary dust removal component rises and falls with the automatic cutter, mounting the fabric. An air pump discharges gas from the inside of the well-shaped negative pressure pipe, and multiple J-shaped siphons guide air from the inside of the concave mounting bracket. The auxiliary dust removal component simultaneously performs negative pressure adsorption filtration, and the air is further processed by the filter component in the collection box.

This utility model relates to the field of dust removal technology in paint production, and is a dust removal device for paint production. It includes a negative pressure main pipe, a negative pressure main pipe 2, a bag filter dust collector, a dust removal fan, an activated carbon adsorption box, a UV photolysis purifier, a blower, and a return air duct. The negative pressure main pipe 1 is equipped with at least two negative pressure branch pipes 1. This utility model has a reasonable and compact structure and is easy to use. It uses the negative pressure main pipe 1 to collect dust from the equipment to be collected, sending it to the bag filter dust collector for dust removal. The negative pressure main pipe 2 absorbs harmful gases, which are then sequentially sent through the exhaust duct and dust removal fan to the activated carbon adsorption box and the UV photolysis purifier for dust removal and purification. Finally, the air is returned to each workshop through the return air duct by the blower, forming an air circulation system and achieving effective dust removal and purification. It features good system circulation, good dust removal effect, low energy consumption, high working efficiency, and good dust removal and waste gas treatment effect.

This utility model belongs to the technical field of metallurgical ironmaking equipment, and relates to a tuyere platform suction beam. This suction beam, as part of the tuyere platform, is arranged near the taphole. It includes a box-shaped beam and an external dust collection pipe communicating with the inner cavity of the box-shaped beam. The box-shaped beam has suction ports to remove high-temperature fumes. The external dust collection pipe is connected to an external dust collection system. This utility model, through the suction ports on the box-shaped beam and its connection to an external dust collection system, can effectively remove high-temperature fumes in front of the furnace, reducing the temperature in that area and improving the furnace environment. It eliminates the need for an additional dust hood, reducing investment costs while not occupying limited space in front of the furnace. Furthermore, the tuyere platform suction beam is a certain distance from the equipment in front of the furnace, preventing the equipment from being baked by the inhaled high-temperature fumes, thus extending the equipment's service life.

The utility model discloses a dust removal device for refractory material production, which relates to the technical field of dust removal equipment and comprises a conveying base, a conveying belt is mounted in the conveying base, and a dust removal mechanism is arranged above the conveying base. And the dust removal mechanism comprises a dust removal box, a dust removal roller is rotationally arranged on the inner wall of the dust removal box, a dust suction pipe is fixedly arranged on the inner wall of the dust removal roller, a plurality of dust suction holes are formed in the surface of the dust suction pipe, and a driving box is fixedly arranged on the back face of the dust removal box. The dust removal device has efficient dust removal capacity, the dust removal mechanism is arranged and comprises a dust removal box, a dust removal roller, a dust suction pipe, a dust suction hole and the like, and the dust removal mechanism is matched with a driving motor and a dust suction pump to work, so that the dust removal roller can be used for driving a strip-shaped shifting piece to turn over materials; dust generated on the refractory material production line is efficiently adsorbed and removed, the dust suction holes are evenly distributed in the surface of the dust suction pipe, the dust suction area is increased, and the dust removal efficiency is improved.

This utility model discloses a dual-motor automatic winding machine, relating to the field of automatic winding machine technology. Its key technical features include: an installation and placement mechanism; a winding drive mechanism, with two winding drive mechanisms installed and connected to the inner upper end of the installation and placement mechanism; a winding mechanism fixed to the front end of the winding drive mechanism; a movable adjustment mechanism installed and connected to the right end of the installation and placement mechanism; and an upper and lower adsorption mechanism installed and connected inside the movable adjustment mechanism, which is connected to an air pump dust suction pipe. The technical advantage is that the movable adjustment mechanism is detachably installed and connected to the right end of the installation and placement mechanism, facilitating installation and removal. The upper and lower adsorption mechanism can adsorb dust from both above and below the movable adjustment mechanism, effectively removing dust. The adsorbed dust is then effectively filtered and collected through the air pump dust suction pipe.

The utility model discloses a dust removal device of a grain drying tower, and particularly relates to the technical field of dust removal devices, the dust removal device comprises a first mounting frame and a second mounting frame fixed on one side of the first mounting frame, a centrifugal dust remover is mounted on the first mounting frame, an exhaust pipe is arranged at the top of the centrifugal dust remover, and a dust removal fan is arranged on the exhaust pipe. A dust discharging hopper is arranged at the bottom of the drying tower, a fan is mounted on the second mounting frame, and the drying tower further comprises a filtering and dehumidifying mechanism for performing primary treatment on waste gas discharged by the drying tower; according to the utility model, through the arrangement of the filtering and dehumidifying mechanism, waste gas can be preliminarily filtered and can be dehumidified, so that the problem that dust is attached to the inside of the centrifugal dust collector to scale due to high humidity of the waste gas is avoided, subsequent self-cleaning of the centrifugal dust collector is facilitated, the dust collection effect of the centrifugal dust collector is improved, and the service life of the centrifugal dust collector is prolonged. The efficient dust removal of the grain drying tower waste gas is further realized.

The utility model relates to the technical field of dust removal of processing workshops, and discloses a bag-type dust remover for an equipment processing workshop, which comprises a dust removal box, an annular groove is arranged on the inner side of the dust removal box, a bearing plate is slidably mounted on the inner side of the annular groove, and a fixed plate is fixedly sleeved on the inner wall of the dust removal box and is flush with the bottom side surface of the annular groove. Compared with a traditional device, when the dust discharging mechanism sprays dust-containing gas into the dust removal box, dust-containing particles are adsorbed on the outer surface of the dust removal cloth bag to increase the weight of the dust removal cloth bag, elastic deformation of the spring is triggered to drive the bearing plate to sink, the controller is triggered to start the gas spraying mechanism, and the gas is conveyed to the first connecting pipe through the conveying pipe and the annular communicating pipe; according to the design, the mechanical linkage and elasticity principle is ingeniously utilized, precise automatic control is achieved, dust removal is efficient, stable operation of equipment is guaranteed, and manual intervention is reduced.

This utility model discloses an anti-aging, high-ductility PVC sheet production equipment, relating to the field of PVC sheet production. It includes a main body of equipment and PVC sheets. The inner wall of the main body is equipped with a cleaning mechanism, which includes a first cleaning roller and a second cleaning roller rotatably mounted on the inner wall of the main body. A first end-face gear is fixedly mounted at the end of the first cleaning roller, and a second end-face gear is fixedly mounted at the end of the second cleaning roller. A drive motor is fixedly mounted on the outer wall of the main body, and a drive shaft is fixedly mounted at the output end of the drive motor, with a drive gear fixedly mounted at the end of the drive shaft. A pressing mechanism is provided at the end of the second cleaning roller. This anti-aging, high-ductility PVC sheet production equipment can simultaneously perform dust removal on both the upper and lower surfaces of the sheet, forming a double-sided cleaning structure. Compared to traditional single-sided cleaning methods, it can more comprehensively remove dust adhering to the sheet surface, avoiding dust residue affecting sheet quality and subsequent use.

This utility model discloses a pretreatment device for processing waste tires into rubber powder, relating to the field of recycled rubber powder pretreatment technology. It includes a crushing box with two hollow crushing rollers rotatably connected to the inner walls of both sides. Two guide plates are symmetrically installed inside the crushing box. The crushing box drives the two hollow crushing rollers to rotate in opposite directions via a drive mechanism. Each hollow crushing roller has a hollow rotating shaft fixed and connected to both ends, and a rotary joint is installed on the outer side of each hollow rotating shaft. In use, the water in the storage tank is cooled by a cooling component, and the cooling water flows within the two hollow crushing rollers, thereby absorbing the heat generated during the crushing process. This effectively prevents rubber from sticking to the hollow crushing rollers, avoids material blockage, and improves the crushing effect.

The utility model relates to the technical field of die machining, and discloses plastic die steel polishing treatment equipment which comprises a workbench, a supporting frame is fixedly arranged above the workbench, and a mounting groove is fixedly formed in one side of the upper surface of the supporting frame. According to the plastic die steel polishing treatment equipment, the double-face threaded rod is driven by the adjusting motor to rotate, the internal thread adjusting blocks on the two sides synchronously move in the opposite direction or the back-to-back direction by means of the characteristics of reverse threads at the two ends of the double-face threaded rod, then the adjusting plate, the polishing motor and the polishing wheel are driven to adjust the distance, and through the design, the surfaces of the two sides of plastic die steel can be polished at the same time; compared with a traditional single-end polishing mode, the machining efficiency is directly doubled, the positions of the double polishing wheels can be accurately adjusted according to the width of the die steel, it is ensured that the polishing wheels are tightly attached to the surface of the die steel, efficient and uniform polishing operation is achieved, and the problem of die steel deformation caused by uneven single-side polishing stress is effectively solved.

The utility model belongs to dust removal and dehumidification equipment technical field, concretely relates to a series connection formula high -efficient composite stabilizer production is with the air draft dust removal and dehumidification equipment that removes dust, including the box, the box one side is equipped with the air draft motor, and the air draft motor output shaft connects the impeller, and the impeller one side is equipped with the cyclone dust removal mechanism, the cyclone dust removal mechanism includes the air inlet, and the air inlet inner wall is equipped with the water spray opening, and the air inlet upper side is equipped with the overflow outlet, and the air inlet lower side is equipped with the dust outlet, and the overflow outlet one side is equipped with the dehumidification dust removal mechanism, the water spray opening is connected with the spray mechanism, and the utility model discloses the cooperation of cyclone dust removal mechanism and water mist, can effectively remove most dust, and then combines the filter screen and the filter adsorption effect of activated carbon layer, and the dust removal efficiency is high, can effectively filter the remaining dust particle.

The invention relates to a hot air supply system and method for preparing white carbon black through rice hull gasification. The hot air supply system comprises a rice hull gasification device, a first-stage gas-gas heat exchanger, a filter bag dust collector, a second-stage gas-gas heat exchanger, a waste heat boiler, an air mixing device and an SCR denitration device. The rice hull gasification device is used for outputting dust-containing fuel gas after rice hull gasification, and the dust-containing fuel gas is subjected to primary cooling through a primary gas-gas heat exchanger and subjected to dust removal through a filter bag dust remover to obtain clean fuel gas; the clean fuel gas is secondarily cooled by the secondary gas-gas heat exchanger and is combusted in the waste heat boiler to form high-temperature flue gas, and the high-temperature flue gas is cooled by the air mixing device and is changed into clean flue gas after passing through the SCR denitration device; clean flue gas sequentially passes through the second-stage gas-gas heat exchanger and the first-stage gas-gas heat exchanger to be subjected to heat exchange and temperature rise to form target clean flue gas, the target clean flue gas is used for preparing white carbon black, after waste heat is utilized, the target clean flue gas is directly discharged, and a chimney and an induced draft fan do not need to be used. The technical problems that in the prior art, a device is complex in process, high in energy consumption and poor in operation stability are solved.

The utility model provides a spray purification dust remover, which belongs to the technical field of environmental protection equipment and comprises a spray tower and a purification tower, a spray air guide pipe, a dust inlet pipe head and an external spray nozzle are fixedly mounted in an inner cavity of the spray tower, the dust inlet pipe head is fixedly mounted on the outer side of the spray tower and close to the top, and the external spray nozzle is fixedly mounted on the top of the spray tower. According to the utility model, through the collaborative design of the two towers and the annular array arrangement of the external nozzles, high-concentration dust and fibers generated by grinding and polishing are efficiently collected, and the maintenance frequency and the operation cost are obviously reduced through a closed-loop water circulation system and a packless design; the airflow speed is accurately controlled through the negative pressure fan, raised dust is effectively restrained, an ignition source is eliminated, and the dust explosion risk is fundamentally prevented; and a multi-stage treatment process of primary purification of the spray tower and secondary separation of the purification tower is adopted, so that the particulate matter emission concentration strictly meets the environmental protection standard, and the effects of efficient dust removal, safe explosion prevention and intelligent operation and maintenance are integrally achieved.

The invention relates to the technical field of air filtering, in particular to a polluted air filtering device with a self-cleaning function, which comprises a filtering box and a pipeline connected with the filtering box, and a primary filter screen, an electrostatic dust collection mechanism, an HEPA (High Efficiency Particulate Air) filter screen and an adsorbent are sequentially arranged in the filtering box. The electrostatic dust collection mechanism comprises a fixed frame and a plurality of dust collection polar plates mounted on the fixed frame, and the dust collection polar plates are obliquely distributed; a communicating pipe is arranged in the fixing frame and connected with an air supply pipe, and a plurality of ash removing mechanisms are arranged on the surface of the communicating pipe. A dry cleaning mode combining high-pressure air jet and mechanical scraping is adopted to replace a traditional washing cleaning mode, the problem of microorganism breeding caused by a humid environment is thoroughly avoided, the risk of secondary pollution is fundamentally eradicated, and the quality safety of indoor air is guaranteed. Meanwhile, the water resource consumption is reduced, and the environmental protection performance is improved.

An environmentally friendly steel structure arc welding device includes a welding torch and a dust collection cylinder. The dust collection cylinder includes an air inlet cylinder facing the welding torch tip and an air suction cylinder connected to an external air extraction device. The air inlet cylinder and the air suction cylinder are connected. The interior of the air inlet cylinder has multiple air inlet channels around the periphery of the welding torch. Each air inlet channel is equipped with an airflow regulating component, which is configured to adjust the airflow through the air inlet channel according to the amount of dust in the air inlet channel. By adjusting the opening of the airflow regulating component, the airflow in the air inlet channel is positively correlated with the amount of dust. The air inlet channels at different positions can distribute the airflow in each air inlet channel according to the distribution area of ​​dust, so that the airflow can carry away as much dust as possible. While maintaining a certain extraction power, it achieves a high-efficiency dust removal effect. At the same time, the dust filter cylinder can filter dust particles at the rear of the air inlet channel and backwash periodically, without affecting the continuity of fume exhaust during welding torch operation.