29 results about "Normal filter" patented technology

The method comprises the following steps: irradiating a normal filter stick by adopting a single-molecule scattering spectrometer to obtain a standard blasting bead scattering spectrum, and determining a standard characteristic peak according to the standard blasting bead scattering spectrum; irradiating the to-be-detected filter stick by adopting a single-molecule scattering spectrometer to obtain a to-be-evaluated blasting bead scattering spectrum, and extracting a characteristic peak of the to-be-evaluated blasting bead scattering spectrum; the to-be-evaluated scattering spectrum is evaluated according to the standard scattering spectrum, when the characteristic peak of the to-be-evaluated blasting bead scattering spectrum is the same as the standard characteristic peak, the blasting beads of the to-be-detected filter stick are qualified, and when the characteristic peak of the to-be-evaluated blasting bead scattering spectrum is different from the standard characteristic peak, the blasting beads of the to-be-detected filter stick leak liquid.

The invention relates to the technical field of filter elements, and discloses an intelligent element replacement control method and device based on filter element filtering resistance, the method comprises the following steps: determining filtering resistance performance parameters of a current filter element, the filtering resistance performance parameters comprising at least one of a pump working resistance parameter, a membrane front pressure parameter and a membrane front and back pressure difference parameter; judging whether the current filter element meets a preset normal filter resistance condition or not according to the filter resistance performance parameter; when it is judged that the current filter element does not meet the preset normal filtering resistance condition, an abnormal filtering factor of the current filter element is determined, and the abnormal filtering factor is used for representing a factor making the current filter element not meet the normal filtering resistance condition; and according to the abnormal filtering factor, generating a core changing control parameter of the current filter core. Therefore, the accuracy and the timeliness of replacing the filter element can be improved.

The present invention discloses a high-smoke and dust waste gas filtering and adsorbing device, which relates to the technical field of high-smoke and dust waste gas filtering. It includes a circular filtering barrel, a filtering component and a cleaning component. The present invention uses a flow monitor to continuously monitor the gas flow in the exhaust pipe. When the gas flow in the exhaust pipe is lower than the interval value in the normal filtering state preset in advance due to the clogging of the filter cloth, the two-way pump is started to pump a fixed amount of water into the circular collecting barrel and then closed. The buoyancy of the water drives the buoyancy ball, the elastic rod and the elastic ball to impact the filter cloth, knocking off the particulate impurities on the filter cloth. At the same time, the exhaust gas flow entering the special-shaped cover impacts the bristles to make them swing, removing the particulate matter on the filter net. When the gas flow in the exhaust pipe returns to the normal interval value due to the filter cloth returning to normal, the two-way pump is started to pump out the water mixed with impurities in the circular collecting barrel and then closed. It can automatically clean when the flow decreases due to the clogging of the filter cloth, maintaining a good filtering state of the filter cloth without the need to stop the machine and wait.

The utility model relates to the technical field of water cups, in particular to a hand-pressing water purifying cup, which is characterized in that a filter component is directly plugged at the bottom of an inner cup, so that sewage in an outer cup can quickly penetrate through the filter component to enter the inner cup when a user performs mutual filter pressing on the inner cup and the outer cup in the later period, and the water purifying effect is improved. The through-flow efficiency is improved; and the filter pressing resistance is reduced. In addition, the filtering assembly and the water inlet are in rotary buckling connection, tight connection of the filtering assembly and the water inlet is guaranteed, rapid disassembly and assembly in the later period are facilitated, and use convenience is improved. In addition, the outer wall of the other end of the filtering assembly abuts against the inner wall of the outer cup, sundries attached to the inner wall of the outer cup can be scraped to the bottom, and cleaning is convenient. And the design can prevent water in the outer cup from flowing out of a gap between the outer cup and the inner cup during filter pressing, so that the pressure between the bottom of the outer cup and the filter assembly is stable in the filter pressing process, and normal filter pressing is guaranteed.

The utility model relates to the technical field of casting equipment, and discloses an efficient double-disc stirring cooler which comprises a cooler tank body, a connecting pipeline is arranged at the top of the cooler tank body, the cooler tank body is communicated with a dust collecting box through the connecting pipeline, a filter assembly is arranged at the inlet end of the connecting pipeline and comprises a filter plate, and the filter plate is arranged on the connecting pipeline. A connecting rod is rotatably arranged in the middle of the filter plate, a servo motor is connected to one end, far away from the cooler tank body, of the connecting rod, a mounting plate sleeves the other end of the connecting rod, two scraping plates are slidably arranged on one side, close to the filter plate, of the mounting plate, and the two scraping plates are separately arranged on two sides of the connecting rod and are slidably connected with the surface of the filter plate; a brush is embedded in the side, close to the filter plate, of the scraper. According to the utility model, the molding sand adsorbed on the filter plate is cleaned, so that the normal filtering effect is ensured, the influence on dust removal in the cooler caused by blockage of the filter plate is avoided, and the cleaned molding sand falls back into the cooler again and is premixed through sufficient stirring.

The system, equipment, and procedures provide a filter condition sensor. The filter condition sensor includes a first pressure port and a second pressure port located on a housing and configured to provide access to an upstream and a downstream side of a filter, respectively. A pressure transmitter is configured to measure a differential pressure between the upstream and downstream sides of the filter. A color-changing indicator, emitting three different colors, is located on the front of the housing. A control unit is configured to cause the color-changing indicator to emit three different colors, indicating normal filter operation, a warning that the filter should be replaced soon, or a warning that the filter should be replaced immediately.

The utility model discloses a kind of self-cleaning water-based paint filtering devices, belong to filtering device field, including device main body, the lower end of device main body is equipped with hopper, and opening is equipped on device main body, the inside of device main body is equipped with filter frame. By opening drain port in one end of filter frame, setting hopper at the lower end of filter frame, simultaneously using pivot to install filter frame, cooperate first overturning component use, when normal filtering, the drain port on filter frame is inclined upwards, can ensure normal filtering effect, when needing self-cleaning, first overturning component starts driving filter frame to overturn by pivot, so that the drain port on filter frame is inclined downwards and discharges impurities, can realize the effect of rapid blowdown, adopt water jet pipe cooperation second overturning component use, utilize the washing effect of water to improve self-cleaning effect, simultaneously, second overturning component swings back and forth with water jet pipe, can expand washing range, ensure washing effect.

The invention discloses an organic waste gas pretreatment device and treatment method in the technical field of organic waste gas early-stage impurity removal and adsorption, and aims to solve the problem that in the prior art, the working process of a cloth bag type filter is difficult to intervene manually. The device comprises an air bellow, a primary filter plate assembly is arranged at the upstream position in the air bellow, a plurality of cloth bag type filter assemblies are arranged at the downstream position in the air bellow, a plurality of supporting partition plates are arranged on a fixing support, partition partition plates are arranged on the fixing support, and a plurality of fan covers capable of covering a plurality of filter bags at the same time are arranged on the back face of the fixing support in a buckled mode. An air outlet pipe is arranged on the fan cover in a communicating mode, and a flow sensor and a three-way electromagnetic valve are sequentially arranged on the air outlet pipe in the air outlet direction. The bag type filter is used for monitoring whether each bag type filter assembly is in a relatively normal filtering state or not, and can be subjected to back flushing maintenance when the filter is seriously blocked, so that the service life of the bag type filter is guaranteed, and the replacement frequency is reduced.

The utility model belongs to the technical field of filters, and particularly relates to a silicon powder filter for polycrystalline silicon production, which comprises a pattern plate and a filter element, a connecting ring is fixedly connected to the top of the pattern plate, a quick disassembly and assembly component is arranged between the connecting ring and the filter element, and a damage plugging component is arranged on the filter element. Grooves are formed in the inner walls of the two sides of the connecting ring, and two inserting grooves are formed in the top of the connecting ring. The filter element sealing device is reasonable in structural design, a small amount of damaged filter elements can be conveniently sealed through the arrangement of the rotating ring, the sealing plate, the plugging head and the supporting ring, so that the normal filtering use of the filter is not hindered, and when the damaged filter elements are too many, the sealing effect is good. Through arrangement of screws, locking grooves, cross rods, reset springs, moving plates, fixing plates, fixing grooves, inserting grooves, inserting grooves, mounting rings and connecting rings, the damaged filter element can be quickly and efficiently disassembled, assembled and replaced, and the disassembling, assembling and replacing efficiency is improved.

Systems, devices, and methods for a filter health sensor are provided. The filter health sensor includes a first pressure port and a second pressure port on the housing and configured to respectively enter an upstream side and a downstream side of the filter. A pressure transducer is configured to measure a pressure difference between the upstream side of the filter and the downstream side of the filter. A color changing indicator is located on the front side of the housing to emit three different colors. The control unit is configured to cause three different colors to be emitted from the color change indicator indicating a normal filter operation, a warning that the filter should be replaced as soon as possible, or a warning that the filter should be replaced immediately.

The utility model belongs to the technical field of filters, and particularly relates to a heat preservation jacket filter which comprises a barrel, a filter inlet and a heating outlet are respectively formed in the front face of the barrel from top to bottom, a filter outlet is formed in the left side surface of the barrel, a discharge outlet in the lower portion of the barrel is in threaded connection with a screwed plug, and a heating inlet is formed in the right side surface of the barrel. A cover plate is fixedly installed on the upper surface of the cylinder through bolts, and a thermometer installation opening and an exhaust opening are formed in the upper surface of the cover plate from front to back. According to the heat preservation jacket filter, by arranging the cleaning assembly, after the controller detects that the difference value between the first flow sensor and the second flow sensor is larger than a preset difference threshold value through the first flow sensor and the second flow sensor, the controller controls starting of the driving motor and the cleaning assembly, and automatic cleaning of the filter screen is ensured; the cleaning blades can effectively remove accumulated matters on the filter screen through the actions of rotating and brushing, so that the normal filtering efficiency of the filter screen is recovered.

The application discloses a cloth bag dust remover, and relates to the technical field of dust removal equipment, which comprises a filter box, a cloth bag filter mechanism and a pulse cleaning mechanism arranged in the filter box, and the pulse cleaning mechanism is arranged above the cloth bag filter mechanism; the cloth bag filter mechanism comprises a plurality of filter bags for filtering dust-containing gas; the cloth bag dust remover further comprises an isolation mechanism for pushing a damaged filter bag to compress and fold along the axial direction; when the side of the filter bag is damaged, the isolation mechanism is arranged, the connecting rope is wound by the winding mechanism, the filter bag is compressed and folded, the damaged filter bag is completely isolated, the dust-containing gas cannot be directly led out through the damaged filter bag, the normal filtering work of other filter bags is not affected, and the cloth bag dust remover can continue to filter.

This utility model discloses a masterbatch hot melt filtering device, including a device body. A support rod is fixedly connected to the right side of the device body. A fixing plate is installed through the outer ring of the support rod near the right side. A limiting plate is fixedly installed through the outer ring of the support rod and is located on the left side of the fixing plate. A fastening nut is threadedly connected to the right side of the support rod and is located on the right side of the fixing plate. A groove is opened through the device body, and a filter frame is installed through the groove. A hydraulic telescopic rod is fixedly connected to one side of the filter frame through a connecting sealing plate. Two filtering positions are set on the filter frame, one for normal filtration and the other for standby filtration. When the filter screen needs to be replaced, the filter frame is adjusted under the action of the hydraulic telescopic rod, so that the standby filtration position replaces the normal filtration position. The normal filter screen is pushed out of the device body for subsequent filter screen disassembly and replacement, reducing long-term downtime.

The utility model discloses a water affair water supply pipeline filtering device convenient to clean, and relates to the technical field of water supply filtering, the water affair water supply pipeline filtering device convenient to clean comprises a volute, a water source filtering collector is placed on the inner side of the volute, and a water inlet pipeline is integrally arranged on the side face of the volute; wherein the water source filtering collector is provided with a worm-gear-shaped hollow collecting shell, one end of the hollow collecting shell is aligned with the water inlet pipeline, and a sealing end plate is integrally arranged at the other end of the hollow collecting shell; filtering through holes are respectively formed in the inner sides of the hollow collecting shell and the sealing end plate; according to the utility model, after water flow is in contact with the inner wall of the hollow collecting shell, a vortex is formed, filtered impurities are pushed to the end part of the hollow collecting shell and are intensively accumulated at the end part, the normal filtering effect is not influenced, and the filtering through holes in the inner wall of the hollow collecting shell can continuously filter and release pressure for the water flow, so that the water flow is quickly filtered; the filtering area is increased and the service life is prolonged.

According to the activated carbon filter of the purified water unit, the filter cartridge is fixed on the box body through the fastening mechanism so as to drive the filter cartridge to be in a vertical state, the water outlet pipe is communicated with the water filtering cavity at the moment, and water filtered by the filter element flows out through the filtering water pipe and is used for normal water supply; when the filter element needs to be replaced, the valve at the corresponding position is closed, the corresponding filter cylinder is rotated out of the box body through the mounting frame, the inclined state of the filter cylinder is kept through the limiting mechanism, and at the moment, the water outlet pipe is communicated with the drainage cavity, so that the filter element can be replaced. Water in the filter cartridge is discharged through the drain pipe, so that the end cover is conveniently opened to replace the filter element, and the filter cartridge at other positions is still kept in a normal filtering working state, namely, the filter element can be replaced without shutdown, so that the preparation efficiency of purified water is improved, the replacement operation of the filter element is simplified, and convenience in operation is provided for workers.

The utility model discloses an automatic rejecting device for filter stick detection, which comprises a detection table, an airflow rejecting mechanism, a rotary feeding mechanism and a photoelectric detection mechanism, a detection bin is fixedly arranged in the middle of the detection table, an air pump is arranged below the detection table, an air guide pipe is communicated between the air pump and the detection bin, and electromagnetic valves are fixedly arranged on the air guide pipe. Waste pipes are arranged below the rear side of the detection bin in a communicating mode, a waste box is arranged on the rear side of the detection table, a rotary feeding mechanism is arranged in the detection bin, and a photoelectric detection mechanism is arranged on the upper portion in the detection bin. According to the utility model, the air pump is started to blow air to the air guide pipe, then the electromagnetic valve is used for controlling the opening and closing of the air blowing, and the unqualified filter sticks are blown out through the waste pipe and fall into the waste box by using compressed air, so that the unqualified filter sticks are removed under the condition that normal filter sticks are not influenced; the motor drives the rotating shaft to rotate to drive the multiple sets of conveying rolling discs to rotate synchronously, multiple sets of filter sticks are detected at the same time, and the detection efficiency is effectively improved.

The utility model provides a grinding device for powder processing, and relates to the technical field of powder processing equipment, the grinding device for powder processing comprises a rack, a rotatable ball milling tank is arranged on the rack, a driving structure is arranged on the rack, and the driving structure is used for driving the ball milling tank to rotate; by arranging the filter screen, materials can be filtered, so that the materials which are completely ground pass through the filter screen and enter the collecting cover to be collected, the materials can be discharged in the grinding process, and after the materials are discharged, the materials in the ball-milling tank can be reduced; at the moment, materials which are not completely ground can be better and faster ground through the steel balls in the ball milling tank, the grinding speed is increased, the working efficiency is improved, the filter screen can be protected by arranging a shielding frame and an arc-shaped protection baffle, the influence of the falling steel balls on the filter screen is avoided, and the service life of the filter screen is prolonged. And the service life and normal filtering operation of the filter screen are ensured.

The utility model relates to the related technical field of water distributors, in particular to a filter water distributor which comprises a filter water distributor main body, a backwashing mechanism is arranged on the outer side surface of the filter water distributor main body, and a filtering assembly is arranged on the inner side surface of the filter water distributor main body. According to the water distributor of the filter, the water outlet pipe, the water pump, the water conveying pipe, the first valve, the blow-off pipe, the filter screen and the second valve are arranged, the filter screen is further arranged on the inner side of the blow-off pipe, the filter screen can intercept a large filtering medium and prevent the large filtering medium from being discharged along with sewage to cause waste of resources, and after backwashing is finished, the water pump and the second valve are closed, so that the water distributor is convenient to use. And the first valve is opened, so that the filter water distributor main body recovers normal filtering work for regularly cleaning the filtering medium, preventing blockage, prolonging the service life of the filtering medium and reducing the maintenance frequency.

The utility model relates to the technical field of filtering device testing, and discloses testing equipment for a filtering device, which is provided with a testing device, a circulating mechanism and a protection box, the testing device is used for testing the filtering device, the circulating mechanism is used for recycling liquid, and the protection box is used for protecting the filtering device. The positions of a driving gear, a driven gear and a motor can be fixed and supported, the stability of the device during operation can be improved, and the problems that the workload and the cost of an enterprise during filter maintenance are increased, the maintenance efficiency is low, and the maintenance cost is low due to the lack of test equipment capable of rapidly and effectively implementing a flushing test in the current market are solved. In the prior art, the normal operation of the production is influenced by the influence on the normal operation of the production, and efficient, rapid and effective test equipment is adopted to carry out flushing test on the filter to maintain the normal filtering effect and timely clean, maintain and replace the filter, so that the service life of the filter is prolonged, the production cost is reduced, and the product quality is improved.

The utility model discloses a filter stick conveying device which comprises a conveying pipeline, a guide assembly, an adjusting assembly and a supporting frame, wherein one end of the conveying pipeline is connected with a device of a previous process; the guide assembly is arranged at the other end of the conveying pipeline; the adjusting assembly is arranged on one side of the guide assembly; and the adjusting assembly is used for adjusting the position of the guiding assembly and is used for guiding normal filter sticks in the conveying pipeline to the next working procedure or removing blocked filter sticks in the conveying pipeline. According to the filter stick conveying device, the problem that filter sticks in a conveying channel are not easy to clean is solved, the production quality and the conveying efficiency of the filter sticks are guaranteed, the conveying pipeline does not need to be directly operated in the whole process of removing blocked filter sticks, and the cleaning time is shortened.

The utility model discloses a coating air supply filtering device, and relates to the technical field of coating gas filtering. The device comprises a device body, an air inlet groove formed in one side of the device body, and an air outlet groove formed in the side, away from the air inlet groove, of the device body, and further comprises a flow guide base fixedly arranged on the inner side of one end of the device body, a first filter plate is distributed on one side of the flow guide base, and a second filter plate is distributed on the other side of the first filter plate; a fixing base is fixedly arranged on one side of the top end of the device body, a motor is fixedly arranged on the side wall of the fixing base, and the output end of the motor is connected with an eccentric wheel. Through the arrangement of the motor, the eccentric wheel, the movable rod, the reset spring, the cleaning brush and other structures, the longitudinal reciprocating motion of the cleaning brush can be conveniently and subsequently realized, so that the filter plate can be conveniently and subsequently cleaned by utilizing the motion of the cleaning brush, and the phenomenon that more impurities are accumulated in the filter plate after the filter plate is used for a long time is prevented; the normal filtering treatment of the filter plate on the air is influenced, and the overall practicability is higher.

Systems, apparatuses, and methods provide for a filter health sensor. The filter health sensor includes a first pressure port and a second pressure port located on a housing and configured to access an upstream side and a downstream side of a filter, respectively. A pressure transducer is configured to measure a differential pressure between the upstream side of the filter and the downstream side of the filter. A color changing indicator is located on a front side of the housing to emit three different colors. A control unit is configured to cause three different colors to emit from the color changing indicator indicating normal filter operations, a warning that the filter should be replaced soon, or a warning that the filter should be replaced immediately.

The invention provides a file-free memory horse detection method and device based on deep learning, and the method comprises the steps: firstly obtaining a Filter object metadata table and a historical attack event table, building a first incidence relation between the two tables, and calculating an attack interval time generation sequence; determining a high-risk target according to the sequence, extracting a feature value of the high-risk target, and establishing a second association relationship with a malicious code injection type; the abnormal performance of the high-risk target is detected through the relation, and an abnormal performance sequence is generated. And taking the sequence and a detection sequence of a normal Filter object as a positive sample and a negative sample respectively, and training a neural network to detect the non-file memory horse attack. According to the method, multi-dimensional space-time correlation analysis and a deep learning model are fused, periodic attacks are recognized through the first correlation relation and the density clustering algorithm, the feature confusion resistance is improved through the second correlation relation, and high-precision detection is achieved.

The invention belongs to the technical field of air compressors, particularly relates to a low-pressure dry-type oil-free rotary-tooth air compressor, and aims to solve the problems that a conventional common filter can only filter passively, is single in filtering effect, cannot be replaced according to the actual pollution condition, and cannot be replaced according to the actual pollution condition. According to the scheme, the air compressor comprises an air compressor shell, a control panel and an emergency button are arranged on the outer portion of the air compressor shell, and a mounting panel is fixedly connected to the inner portion of the air compressor shell. According to the low-pressure dry type oil-free rotary-tooth air compressor, through integration of dynamic filtering, real-time monitoring, automatic replacement and stable sealing, intelligent maintenance and high-reliability operation of the air compressor are achieved, and the problem that a traditional filter cannot adapt to the actual pollution condition is effectively solved; and the method is suitable for industrial fields with high air quality requirements.

The utility model discloses a disinfection device for air purifier belongs to air purifier disinfection field, aims at solving the user under prior art filter screen needs to dismantle multilayer buckle, screw or complex shell subassembly when replacing, and the operation process is complicated, especially for the old user or the person of limited physical existence obvious inconvenience, and more importantly, filter screen in long -term use will cause dust, aging to lead the efficiency to drop, and these components in the prior art structure are often blocked by the outer end filter screen or the body frame, and the filter screen system needs to be disassembled when disassembling and cleaning or replacing, not only increased the operation difficulty, also can cause the normal filter screen to be damaged because of frequent disassembly and assembly. Including air purifier shell, the upper end of air purifier shell is installed with upper cover, the inside of upper cover is provided with suction mechanism, the inside of air purifier shell is provided with dismounting mechanism, and the dismounting mechanism includes the upper limit ring that fixedly connected in the top of air purifier shell inside.

The utility model discloses a metal filter bag and a dust remover, which comprise a top plate, a connecting part arranged on the lower end surface of the top plate, a filter bag main body connected with the connecting part, a second connecting part connected with the lower end of the filter bag main body, a second filter bag main body connected with the lower end of the second connecting part, a tail plugging part arranged at the lower end of the second filter bag main body, and a groove downwards arranged on the lower end surface of the connecting part, the upper end face of the second connecting part is downward, the lower end face of the second connecting part is upward provided with a second groove and a third groove, and the upper end face of the tail plugging part is downward provided with a fourth groove. According to the utility model, the metal filter bag is arranged in sections, and the outer side of each section can be provided with a baffle plate for blocking the damaged filter bag, so that the dust removal effect of other normal filter bags is ensured; the baffle is arranged without increasing the overall height of the filter bag, and operation is convenient; meanwhile, two groups of dust removal boxes are arranged, so that continuous flowing of the flue gas can be realized, and the dust removal efficiency is ensured.

The utility model discloses a crafted beer saccharifying and filtering device, which belongs to the technical field of beer production, and comprises a filtering shell, a filtering assembly, a driving assembly, a cleaning assembly, a plurality of filtering holes and a baffle plate, the filtering shell comprises a shell, a feed port and a discharge port, and the plurality of filtering holes are all arranged in the shell; according to the utility model, the rotating filter conveying belt in the shell ensures that the corresponding part of the filter conveying belt below the feed port is continuously changed, so that the filter conveying belt below the feed port is not easily blocked due to accumulation of impurities, and the rotating filter conveying belt drives the filtered impurities to be conveyed towards one side of the baffle; impurities on the surface of the filtering conveying belt are scraped off by the cleaning plate and fall onto the plurality of filtering holes, so that the filtering conveying belt can be continuously cleaned in the filtering process, the device can clean a conveying structure in the device without shutdown, the operation is simple, and the normal filtering efficiency of the device is ensured.

The utility model relates to filter press technical field, and disclose a kind of DMF recovery residue filter press, comprising: filter press subassembly, the filter press subassembly includes mounting bracket, the rear side of mounting bracket is fixedly installed with thrust plate, the rear side of thrust plate is fixedly installed with feed valve, the front side of mounting bracket is fixedly installed with hydraulic oil cylinder, the telescopic end of hydraulic oil cylinder is fixedly installed with compression plate, the inner side of mounting bracket is all provided with filter press plate, installation component, the installation component includes shell, the surface of mounting bracket is located shell, the upper and lower sides of shell surface are all set with notch. This kind of DMF recovery residue filter press, by setting installation component, this mode can quickly disassemble and assemble filter press plate, when the surface of filter press plate is too much solid impurities, affect normal filter press work, after, it is quickly disassembled and cleaned, improve the convenience of filter press plate disassembly, convenient for operator to use.

The invention discloses an automatic replacement device and an automatic replacement method for a dry-type filter module. The automatic replacement device comprises a guide rail, a moving trolley and an unpowered slide rail, the guide rails are distributed in the length direction of the dry-type paint mist intercepting area, a moving trolley is arranged on the guide rails, the moving trolley can move along the guide rails and carry the dry-type filtering module, and the unpowered sliding rail is arranged on the side of the guide rails and extends to the dry-type paint mist intercepting area. The dry-type filtering module disclosed by the invention can be automatically moved in and out through power control, and manual operation is not needed; the moved-out dry type filtering module is automatically conveyed to a hazardous waste area through a moving trolley and a guide rail; when the dangerous waste carrying trolley drives the removed dry type filtering module away from the dry type filtering module to be replaced and automatically conveys the dry type filtering module to a to-be-replaced area, the dry type filtering module is automatically conveyed to the joint of the spraying room paint mist filtering treatment chamber through the power mechanism, the chamber door is automatically closed, the internal seal is opened, and normal filtering operation work is recovered.