390 results about "Roughing filter" patented technology

The invention belongs to a petroleum sewage treatment method, in particular relates to an oil pumping in oil filed sewage treatment method and the process flow thereof. The invention is characterized in that the oil pumping sewage from the rude oil is firstly added with oxidizer so as to partially oxidize the sulfide in the sewage, and then is added with precipitant so as to remove the settlementof rest secondary sulfide in the sewage; organic high polymer flocculant is added inside the sewage to flocculate the substances such as sediment and oil inside the sewage; disinfectant is added inside for disinfection and for settlement separation; the sewage is rough filtered and then finely filtered so as to reach the quality standard of pouring water; the filtered water is photoelectrically sterilized, and then anti-sludge inhibitor is added into water for accomplishing anti-sludge inhibition after being photoelectrically sterilized and before entering into a clean water pot; and the water inside the clean water pot is used for back pouring. The invention solves the high sulfur content, high germ content and high mineralization oil pumping sewage treatment problem, and reaches the quality standard of back pouring water for low permeable oil filed, thereby protecting the environment and saving the water resource.

A unique hardware architecture that combines short pulse, stepped frequency and centerline processing. The inventive architecture implements a radar system having a transmitter for transmitting short pulses, each pulse being stepped in frequency and a receiver receiving the pulses and providing an output signal in response thereto. In the illustrative embodiment, the transmitter includes a frequency source, an RF switch coupled to the source and a controller for controlling the RF switch. The receiver includes a signal processor implemented with a center line roughing filter. The signal processor has multiple channels each of which has a range gate and a digital filter. The digital filter includes a Fast Fourier Transform adapted to output a range Doppler matrix.

The invention relates to a waste gas treatment device, and belongs to the technical field of environmental protection. A photochemistry coupling low-temperature plasma waste gas treatment device comprises a shell, wherein the bottom of the shell is provided with a water exhaust opening; the left side wall and the right side wall of the shell are respectively provided with a gas inlet and a gas outlet; a communicated air duct is formed between the gas inlet and the gas outlet; the air duct is internally provided with a rough filtering module, an ultramicro purifying module, a baffle plate demister and a photochemistry coupling low-temperature plasma module sequentially at the direction from the gas inlet to the gas outlet; the device is also provided with a PLC (programmable logic controller) system and a circulation water filtering system. The photochemistry coupling low-temperature plasma module provided by the invention combines ultraviolet rays and a low-temperature plasma electromagnetic field organically and integrally; ultraviolet irradiation can promote the reaction effect and velocity of low-temperature plasma, and improve the treatment efficiency; the device is provided with the PLC system which is simple to operate; the circulation water filtering system of the device can save water resource effectively.

The invention relates to a water disposal system, comprising a swirl rough filter which is communicated with the feeding water to be disposed, a water disposal device which is connected with the swirl rough filter, and a disposed water collecting box which is used for collecting the disposed water which is disposed by the water disposal device; wherein, the water disposal device comprises a radial swirl filter; the middle part of the shell of the mainbody of the radial swirl filter is communicated with a tangent water outlet, the upper part thereof is provided with a ring-shaped overflow device and a lower part thereof is provided with a conical medium supporting screen and filled by filter medium; the bottom of the overflow device is provided with a supporting frame and vanes which are obliquely arranged on the supporting frame; the supporting frame, the vanes and the radial swirl filter shell form the ring-shaped sleeve; water which is disposed by the radial swirl filter flows into the disposed water collecting box. The water disposal system leas more water to be circulated and reused, has simple structure, few part numbers, low cost, is easy for large-scale production, economical running, installation and operation. The invention also relates to a water disposal device used for the water disposal system.

A tanning wastewater treatment and reuse apparatus includes a coarse filter, a regulation pool, a hydraulic sieve, a desulfurization pool, a first nanocatalytic electrolyzer, a flocculation pool, a first settling pool, a flotation device, a biochemical pool, a second settling pool, a second nanocatalytic electrolyzer, a fine filter, and a compressor. Also provided is a tanning wastewater treatment and reuse method includes the steps of desulfurization, first nanocatalytic electrolysis, flocculation, biochemical treatment, second catalytic electrolysis, and filtration. The invention allows high CODCr removal rate, reduced chemical agent consumption, reduced sludge formation, thorough treatment, and high water reuse rate.

The invention provides a lubricating oil multi-stage oil-water automatic separating system, comprising an oil-return oil tank which is serially connected to a fine sink-oil tank, a cycle oil tank, a roughing filter, a pipeline heater, a vacuum can, a fine filter, and a product oil tank; a PLC control cabinet electrically connected to the oil-return oil tank, and a return pipeline for unqualified oil arranged between the fine filter and the cycle oil tank. Simultaneously, the invention also provides a control method for the lubricating oil multi-stage oil-water automatic separating system. The invention has the advantages that the oil consumption is reduced to 50-80 barrels per month after using the separating system, and the spare cost of oil consumption is about 50-60 thousands yuan per month except power consumption and filter materials cost, the discharged polluted oil is reduced by 15 barrels per day, and the pollution degree of oil treated by water is abated, and surrounding environment is remarkably improved, additionally, the automaticity and production efficiency in production process can also be improved.

The invention discloses a method for preparing corn polypeptide by taking zein as raw materials, which is designed for solving the defects that the traditional method of lifting alkali but sinking sour is easy to damage the active ingredient of the zein and the product has many impurities by hydrolyzing the yellow corn powder directly. The method is that: dissolving sufficiently the zein powder in alkaline water solution, conducting the limited zymohydrolysis on the zein with alkali protease and then undertaking the rough filter, decolor by using active carbon, bitter removing, fine filter, sterilization, vaccume compression, spraying and drying, thus achieving the corn polypeptide. The method selects the raw material with high content of proteide but without impurities as amylum, fibre and coloring matter, etc. and takes the alkaline water solution as the latent solvent which enables the zein dissolved sufficiently and facilitates the combination of the kali protease and the zein typsin and also enables the corn polypeptide product contain alkali ion which is good for human body. The corn polypeptide has the advantages of simple technics, easy controlled zymohydrolysis degree and good quality and effects.

The invention belongs to the fields of the water supply and sewage treatment devices, and provides a water treatment device and method aiming at excessive ferrum, manganese, fluorine and arsenic in underground water. The water treatment device consists of a partition oxidizing reaction tank (1), an inclined tube sedimentation tank (2), an upward flow quartz sand rough filter material filter tank (3), a downward flow multi-medium filtering tank (4) and a disinfection and water clarifying tank (5) which are sequentially communicated. The water treatment method adopts such a process flow of aeration, partition oxidizing reaction, inclined tube sedimentation, upward flow filtering, aeration, and downward flow filtering in sequence, and comprises the steps of firstly removing interference of ferrum to manganese and then removing the manganese; and feeding a flocculant in the partition oxidizing reaction tank and feeding a pH regulation agent into a pump to be capable of primarily removing fluorine and arsenic, carrying out two-stage filtering to be capable of ensuring that the water after treatment can achieve the standard. The water treatment device and method can remove the excessive ferrum, manganese, fluorine and arsenic substances in the same one device, and the treatment effect is superior to current sanitary standard of domestic drinking water in China.

The invention discloses a plant source anti-bacteria type organic nutrient solution and a preparation method thereof. The plant source anti-bacteria type organic nutrient solution is prepared from a nutrient solution A and a nutrient solution B, wherein the nutrient solution A is prepared from biogas slurry and organic matter decomposed liquid, and the nutrient solution B is prepared from dandelions, houttuynia cordata, radix scutellariae, honeysuckles, radix isatidis and coptis chinensis. The preparation method comprises the steps that the nutrient solution A is prepared from the biogas slurry and the organic matter decomposed liquid; the dandelions, the houttuynia cordata, the radix scutellariae, the honeysuckles, the radix isatidis and the coptis chinensis are smashed, grinded and sieved, traditional Chinese medicine mixture fine powder is obtained and added into water to be soaked, sieving is conducted to remove impurities and residues, a rough filtered solution is obtained, sieving is conducted on the rough filtered solution, and the nutrient solution B is obtained; and the nutrient solution A and the nutrient solution B are mixed, namely the plant source anti-bacteria type organic nutrient solution is obtained. According to the prepared plant source type organic nutrient solution, organic components are used as raw materials completely, damage to the soil and environment does not exist, nutrition is rich, cost is low and the antibacterial effect is significant.

The invention provides a personal respirable dust sampling device. The personal respirable dust sampling device comprises a sampling box, a filter screen, a sampling filter membrane and a driving device, wherein the sampling box is used for providing an installation space for a sampling component; the filter screen is installed inside the sampling box, comprises a rough filter screen used for filtering out particles exceeding the dust sampling standard, and a fine filter screen used for filtering dust conforming to the sampling standard in a grading manner; the sampling filter membrane is installed at one end of a gas outlet of the fine filter screen and is used for adsorbing filtered dust and is taken as an analysis sample of dust content; the driving device comprises a driving motor and a driving shaft which simultaneously penetrates through axle lines of the rough filter screen and the fine filter screen to drive the rough filter screen and the fine filter screen to simultaneously rotate. According to the device, the technology of combination of impact type separation and a double-layer conical surface filter screen is adopted, the dusty environment is sampled, large granular dust can be separated firstly by utilizing the rough filter screen, and then respirable dust conforming to the regulations of a BMRC sampling efficacy curve is separated by utilizing the fine filter screen, so that the sampling precision is improved.

A package plant for treating raw water to yield potable water. The package plant includes an inlet for raw water, followed by an ozonator for disinfecting the water. Next is provided an up flow roughing filter including a chemically active layer, on top. A slow sand filter follows, which is sized and shaped to promote growth of a biomass for water purification. The up flow roughing filter removes particulates, contributes to the removal of dissolved organics, and protects the slow sand biomass by removing disinfection residuals. In another aspect a method of maintaining the plant is provided, including washing the up flow roughing filter by draining water down through it, providing a vigorous up flow to agitate the top layer, and then washing the slow sand filter.

The invention provides a filter valve, which belongs to the technical field of machinery, and solves the problems of unsatisfactory filtering effect and low practical valve of a conventional filter valve. The filter valve comprises a valve body with a water inlet and a water outlet formed in two ends, wherein the valve body is provided with one filtering pipe for allowing the valve body water inlet and the valve body water outlet to be communicated; an outer end of the filtering pipe is connected with a sewage draining piece; a rough filter screen and a fine filter screen are fixed in the filtering pipe; the rough filter screen is sleeved with the fine filter screen; the rough filter screen and the fine filter screen are all regular grid shape, and mesh of the rough filter screen is greater than that of the thin filter screen. The filter valve has the advantages of simple structure, good filtering effect, high practical value, and the like.

The invention discloses a cooling liquid storing box with stirring and filtering functions and applied for a numerically-controlled machine tool. The cooling liquid storing box with the stirring and filtering functions comprises a storing box body, wherein a sealing end cover is mounted on the top part of the storing box body; and a rotating bearing, a supporting clamping seat and a flow guide plate are sequentially arranged in an inner chamber of the storing box body from top to bottom. According to the cooling liquid storing box with the stirring and filtering functions and applied for the numerically-controlled machine tool, a stirring impeller is impacted by reflowing cooling liquid, so that the cooling liquid is stirred by the rotating stirring impeller, and the problem that the cooling liquid is accumulated to influence the impurity filtering of a rough filtering net is reduced; impurities in the cooling liquid can be conveniently filtered out; and meanwhile, iron slag in the cooling liquid can be filtered out through the magnetic effect of an adsorbing magnet, and thus the influence of the iron slag on the filtering of the rough filtering net is reduced; the cooling liquid in the inner chamber of the storing box body can be conveniently used; the influence of insufficient supply of cooling liquid on the processing accuracy of the numerically-controlled machine tool is reduced; and the processing quality of the numerically-controlled machine tool is ensured.

The invention relates to a method for separating MSC (Mesenchymal Stem Cell) climbing sheets of umbilical tissue. The method comprises the following steps of: taking an umbilical cord of a newborn baby and cleaning with a phosphate buffer solution; crushing the umbilical cord; filtering the crushed umbilical cord with a rough filter screen and a filter screen of 200 meshes to obtain an umbilical tissue block with the diameter of 1-1.5mm; draining water and inoculating the umbilical tissue block in a culture dish; putting the culture dish in a 37 DEG C culture box containing 5% of CO2 for 3h; adding culture fluid D-MEM (Dulbecco-Modified Eagle Media) / F12 containing 20% of cow's serum and 10ng / ml of EGF (Epidermal Growth Factor) and putting back to the culture box for 5 days; adding trypsinase to the culture dish and putting dry cells in digestive juice; filtering the digestive juice by the filter screen of 200 meshes; and centrifugating the filtrate and removing supernatant fluid to obtain mesenchymal stem cells of the umbilical tissue. The invention has simpler and more convenient operation, keeps the original activity and the growth state of the cells, improves the yield of the MSCs and avoids the loss action of collagenase on the stem cells and prevents the pollution danger by introducing animal-based proteins and pathogens into animal original collagenase.

This invention discloses channel radial trunk diesel vehicle tail gas particle filter device of environmental devices composed of rough filter screen and fine filter screen mounted on the case package plate. When the gas is exhausted from the engine enters from the inlet and goes out through outlet, the tail gas particles are captured by the filter screen to be purified to prevent it from pollution to environment.

The invention discloses a desert tree planting machine. The desert tree planting machine comprises a split type sand absorbing hole forming device, an air and sand separator and an airflow power device. The split type sand absorbing hole forming device comprises a hole forming pipe and a sand absorbing pipe which are in a cylindrical shape. The sand absorbing pipe is sleeved with the hole forming pipe, and an annular cavity is formed between the sand absorbing pipe and the hole forming pipe. The distance between the bottom of the sand absorbing pipe and the bottom of the hole forming pipe can be adjusted. The air and sand separator comprises a rough filtering chamber and a fine filtering chamber, a partition board is arranged between the rough filtering chamber and the fine filtering chamber, and the upper portion of the rough filtering chamber is communicated with the upper portion of the fine filtering chamber. A sand inlet is formed in the top of the rough filtering chamber, and a sand discharging port I is formed in the bottom of the rough filtering chamber. An air outlet is formed in the top of the fine filtering chamber, and a sand discharging port II is formed in the bottom of the fine filtering chamber. Sand discharging valve ports are formed in the sand discharging port I and the sand discharging port II. The sand absorbing pipe is communicated with the sand inlet. The air outlet is communicated with the airflow power device. The operating principle of the desert tree planting machine is different from the operating principle of machine drilling and a ditcher in the prior art, the desert tree planting machine is simple in structure, and a hole can be formed fast.

The invention discloses a clutch hydraulic control system for a double-planet-row confluence hydro-mechanical continuously variable transmission. The clutch hydraulic control system comprises a clutchcontrol system, a lubricating cooling system and an oil supply system. The oil supply system comprises an oil tank. Oil in the oil tank passes through a rough filter and then passes through a low-pressure large-flow gear pump and a high-pressure small-flow gear pump after. The low-pressure large-flow gear pump communicates with a first hydraulic clutch, a second hydraulic clutch and a third hydraulic clutch. An oil outlet of the high-pressure small-flow gear pump communicates with a precise filter, and the precise filter communicates with a first proportional pressure reducing valve, a secondproportional pressure reducing valve and a third proportional pressure reducing valve. The three proportional pressure reducing valves communicate with spring reset oil cylinders. The three hydraulicclutches are connected into a control oil way through the three spring reset oil cylinders. By means of the clutch hydraulic control system for the double-planet-row confluence hydro-mechanical continuously variable transmission, the structure is simpler, the size is reduced, the cost is reduced, the oil pressure is stably controlled, hydraulic oil compensation can be conducted on oil leakage ofthe system, and reliability of the lubricating cooling system is high.

The invention provides an intelligent self-circulation well washing device, wherein a drainage fluid treatment system in a washing fluid treatment part is controlled by an intelligent control treatment part to desand the washing fluid, and then subjected to impurity separation by a settling tank, the drainage fluid which has been subjected to impurity separation is rough filtered by a coarse strainer and fine filtered by a fine filter to clean the washing fluid, a working fluid power system in the washing fluid treatment part is controlled by the intelligent control treatment part to adjust the rotating speed of an engine so as to use the cleaned washing fluid as the working fluid to be converted into high-pressure working fluid by a well washing pump to output, and thus the cleaning of the well is achieved. The intelligent self-circulation well washing device is a vehicle-mounted well washing vehicle, and has a function of intelligently controlling the whole washing process; according to the intelligent self-circulation well washing device, effectively control in the well washing process according to different kinds of wells and different washing phases can be achieved, the water injection well is protected, and the washing quality of the water injection well is improved.

The invention discloses a water resource recycling machine with a sewage treatment mechanism, and relates to the technical field of water resource recycling. The water resource recycling machine with the sewage treatment mechanism comprises a precipitation tank. A sewage inlet pipe is connected with one side of the precipitation tank, and a sewage discharge pipe is connected with the other side of the precipitation tank. A controller is installed on the front surface of the precipitation tank. A supporting column and a sewage treatment tank are sequentially arranged on the top of the precipitation tank from left to right. A cushion plate is fixedly connected with the top of the supporting column. A first water pump is installed on the top of the cushion plate. According to the water resource recycling machine with the sewage treatment mechanism, by using the precipitation tank, a rough filter tank, a fine filter tank, a first sterilization tank and a second sterilization tank, multistage treatment can be conducted on sewage, it is ensured that the sewage can be treated to be up to the standard, the problem that the sewage treatment effect of the water resource recycling machine is poor is solved, and the recovery utilization rate of water resources is further increased.

The invention discloses a recycling method of 6-amino penicillanic acid through film, which comprises the following steps: adjusting pH value of crystal mother liquid with 6-amino penicillanic acid to 5.0-8.5; proceeding rough filter; adding mother liquid into nano-filtering system; separating through nano-filtering film; obtaining the condensate and dislysate with condensing times at 5-20; adopting the organic solvent tolerant film with stop molecular weight at 5-800 at 1-10 deg.c under 15-40bar; washing the nano-filtering system.

The invention discloses a multilayer filter, which comprises a filter main body, wherein a feed port is formed in the top end of the filter main body; a liquid outlet is formed in the bottom end of the filter main body; a rough filtering component is arranged at the upper part of an inner cavity of the filter main body, and consists of a plurality of rough filtering layers; a fine filtering component is arranged at the lower part of the inner cavity of the filter main body, and consists of a plurality of fine filtering layers; both the rough filtering component and the fine filtering component are movably connected with the inner wall of the filter main body. The multilayer filter has the beneficial effects that the filter is novel in structure, easy to manufacture and convenient to use; filtering effects can be effectively improved; the filtering layers can be extracted to be conveniently cleaned.

The invention discloses a novel air purifier convenient to clean. The novel air purifier comprises a shell, a first filtering system and a second filtering system. A first air inlet is fixedly formed in the outer surface of the left side of the shell. An air outlet is fixedly formed in the outer surface of the right side of the shell. Two movable core taking doors are arranged on the top of the shell. The first filtering system is sequentially provided with a rough filtering cotton layer, an HEPA efficient filter net layer and an activated carbon filter layer from the outer side to the interior. The second filtering system comprises a corona electrode and a dust collecting plate. Supporting plates are fixedly arranged at the bottom of the first filtering system and the bottom of the second filtering system. Supporting springs are arranged on the lower surfaces of the supporting plates. The parts, located on the two sides of the supporting plates, of the bottom of the shell are provided with clamping hooks, and the back faces of the clamping hooks are connected with the bottom of the shell through springs. Through the arrangement of the movable core taking doors, the first filtering system and the second filtering system, the air purifier does not need to be dismounted during cleaning, and the purifying capability of the air purifier is improved, wherein the first filtering system and the second filtering system are connected through the springs.

The invention provides an integral water purifying device for removing hardness of underground water. The integral water purifying device comprises a water inlet unit (3), an agent adding unit (4), a main body (1) and a cone-shaped body (2) inverted in the main body (1), wherein the vertex of the cone-shaped body (2) is connected with the water inlet unit (3), and the bottom surface of the cone-shaped body (2) is open; a primary reaction unit (21) and a micro-expansion rough filtering unit (22) are arranged in sequence on the cone-shaped body (2) from bottom to top; a water distribution layer (11), a deep filtering unit (12), a water collecting region (13) and a disinfecting unit (14) are arranged in sequence on the main body (1) from top to bottom; the agent adding unit (4) is arranged on the water inlet unit (3). The device is designed according to the reaction process and characteristics of the conventional agent for removing hardness of underground water, and has the advantages of rapid hardness removing process, easiness in operation, low running cost, good effluent quality and the like. Meanwhile, the device has the advantage of small floor area.

The invention discloses an intelligent sterilization storage cabinet for household tableware. A containing cavity is fixed in a cabinet body, a first supporting frame, a second supporting frame and athird supporting frame are arranged in sequence inside the containing cavity, the two ends of the first supporting frame are in sliding connection with slide rails, the two ends of the second supporting frame are in sliding connection with the slide rails, the two ends of the third supporting frame are in sliding connection with the slide rails, the slide rails are fixedly arranged on the inner wall of the containing cavity, multiple ventilation holes are formed in one side of the cabinet body and communicated with the containing cavity, a filtering device is located between the ventilation holes and the containing cavity and fixedly connected with the cabinet body and comprises a rough filter net, an active carbon filter net, a water-absorption resin net and a containing box, the containing box is fixedly connected with the cabinet body, a cover body is movably connected with a box body through a buckle, and the rough filter net, the active carbon filter net and the water-absorption resin net are sequentially fixed into the box body. The intelligent sterilization storage cabinet for the household tableware can effectively dehumidify the tableware, damage to internal elements inside the sterilization cabinet caused by wet air is prevented, and breeding of bacteria due to long-term storage is also avoided.

An apparatus for preparing a macromolecule sample from a complex liquid mixture includes a hydraulic system adapted for control by an automated controller, comprising a pump and one or more valves. The hydraulic system can be controlled by an automated controller to apply the liquid mixture to one or more filters with a pressure differential across each filter. The filters include a rough filter selected to separate, from a macromolecule in a liquid mixture, at least a portion of one or more rough components in the mixture that are larger than the macromolecule. Further included is a fine filter selected to separate from the macromolecule at least a portion of one or more fine components in the mixture that are smaller than the macromolecule. A method for preparing a macromolecule sample includes automatically acquiring a liquid mixture, the mixture including a macromolecule. At least a portion of the other components in the mixture are automatically separated from the macromolecule by applying the mixture to each of one or more filters, with a pressure differential across each filter.

The invention provides a cold-rolled sheet shape signal online mode recognition method. The method includes the steps of receiving sheet shape measurement values of measurement segments in the width direction of a cold-rolled strip steel measured by a sheet shape instrument in an online mode, comparing the measurement values with a set distribution value of a corresponding target sheet shape, obtaining sheet shape deviation values of all measurement segments, determining the largest value of the absolute values of the sheet shape deviation values, carrying out the normalization processing on the sheet shape deviation values of all measurement segments, carrying out the rough-filtering processing on deviation values, after the normalization processing, of the measurement segments, recognizing sheet shape modes through a radial basis function neural network based on the differential evolution intelligent optimization algorithm, and judging a sheet shape mode recognition result. Through the normalization processing and the rough-filtering processing of the sheet shape deviation values of all measurement segments, the adverse influence of bad point data of the sheet shape measurement values on sheet shape mode recognition can be obviously eliminated, and recognition accuracy of the sheet shape mode is improved. Molding accuracy and network training efficiency are obviously improved due to the fact that the differential evolution intelligent optimization algorithm is applied to the sheet shape mode recognition based on the radial basis function neural network.

The invention discloses a mining dust collection device and a mining dust collection method. The mining dust collection device comprises a dust collection tank, a multifunctional liquid storage tank and an efficient filtering tank, wherein a high-pressure spray head, a rough filtering net and a fine filtering net are sequentially mounted from top to bottom inside the dust collection tank; the diameters of the rough filtering net and the fine filtering net are equal to each other; the edges of the rough filtering net and the fine filtering net are clung to the inner cylinder of the lower shellof the dust collection tank; a gap is formed between the inner cylinder and the lower shell of the dust collection tank; the left side wall of the lower shell of the dust collection tank is communicated with a first conveying tube; a first electronic valve is mounted on the first conveying tube; the right end of the inner cylinder of the lower shell of the dust collection tank is communicated witha fifth conveying tube; the fifth conveying tube penetrates out from the lower shell of the dust collection tank and is divided into two branches rightwards; one branch is communicated with the multifunctional liquid storage tank through a third electronic valve; the other branch is communicated with the efficient filtering tank through a fourth electronic valve. Two different dust collection methods can be selected according to different mounting modes of the device, and residents or staff in mining areas can be prevented from breathing diseases such as pneumoconiosis.

The invention relates to a plasma vehicle-mounted air purifier. The plasma vehicle-mounted air purifier comprises a shell, an air inlet, an air outlet, a fan, a circuit module, a power module, an indicator lamp, a plasma box and an electromagnet. The air inlet is formed in one side of the shell. A honeycomb-shape metal rough filtering layer is installed in the air inlet. The plasma box is of a square structure. The two ends of the plasma box are connected with ventilation ducts in an open mode. Three to five pairs of static metal nets are arranged in the plasma box and installed at the two ends of the plasma box. The two ends of the static metal nets are arranged equivalently and symmetrically. After the plasma vehicle-mounted air purifier is powered on, dust in air moves towards the positive pole under action of a static electric field when passing through the electric field, electric charges are released after the dust reaches the positive pole, and the effects of adsorbing the dust and purifying air are achieved. The plasma purification mode is adopted, the dust is adsorbed through the static metal nets, and air in a vehicle is purified due to the filtering effect of an HEPA filtering layer, an activated carbon filtering layer and a photocatalyst filtering layer.