1653 results about "Filter material" patented technology

The invention relates to a bandage, a pleated filter cartridge and dust removal equipment, and belongs to the technical field of filtering and dust removal equipment. The bandage is applied to the pleated filter cartridge and comprises a pleated structural member and a fixing structural member, the pleated structural member comprises an annular body and a plurality of tooth bodies connected to the inner side of the annular body, part of adjacent tooth bodies are arranged at intervals in the annular arrangement direction of the annular body to form receding grooves, at least one adjacent tooth body is arranged at intervals to form mounting grooves, and the fixing structural member is fixed to the annular body. The avoiding groove and the mounting groove are both used for avoiding at least one fold tooth of the filter material; the fixing structural part is arranged in the mounting groove and comprises a clamping piece part with an opening end and a connecting end and a fixing part, the clamping piece part is connected with the fixing part through the connecting end, the opening end of the clamping piece part is used for being connected with the pleat teeth of the filter material, and the fixing part is connected with the annular body. According to the bandage, the pleated filter cartridge and the dust removal equipment provided by the invention, the problems that the bandage is easy to age and deform after being used for a long time and the filtering effect of the filter cartridge is finally reduced are at least solved.

The invention discloses a cyclone separation and moving particle bed coupled pulverized coal pyrolysis oil gas high-temperature dust removal system, and belongs to the technical field of coal clean utilization. The system comprises a cyclone separator, a fine filtration unit, a filter material cyclic regeneration unit and an intelligent control unit, the fine filtration unit comprises a particle bed, a particle bin is arranged at the top end of the particle bed, and a composite filter material layer is arranged on the particle bed; a dust-containing high-temperature oil gas pipeline and a pretreatment high-temperature oil gas pipeline are arranged at the top end of the cyclone separator, dust-containing high-temperature oil gas is introduced into the cyclone separator through the dust-containing high-temperature oil gas pipeline to be pretreated, and the pretreated dust-containing high-temperature oil gas is introduced into the particle bed through the pretreatment high-temperature oil gas pipeline to be finely filtered; and a coke breeze discharge pipe is arranged at the bottom of the cyclone separator. The invention is used for solving the technical problem of low gas-solid separation efficiency at high temperature caused by the adoption of a single filter material in the existing pulverized coal dust removal system.

The invention discloses a CO detection device for a monorail crane diesel engine, and relates to the technical field of gas detection equipment, the CO detection device comprises a mounting box, a detection assembly is arranged on one side in the mounting box, the detection assembly comprises a detection box, a gas chamber is arranged in the detection box, a laser detector is arranged in the gas chamber, and the laser detector is arranged in the detection box. One end of the air chamber is fixedly connected with an air inlet filtering assembly, and one side of the detection assembly is provided with a back-flushing cleaning assembly used for cleaning the air inlet filtering assembly; one end of the mounting box is rotationally connected with a butt joint used for being in butt joint with an exhaust pipe of the diesel engine. Sampled flue gas is filtered through the gas inlet filtering assembly, high-pressure flue gas is stored through the high-pressure gas storage cavity, the high-pressure flue gas is discharged to the gas inlet filtering assembly when needed through control of the backflushing electromagnetic valve, filter material carbon deposition is removed through gas reverse impact force, and the trouble of frequent manual replacement and maintenance is avoided.

The invention belongs to the technical field of intelligent control, and particularly relates to an air purification system based on intelligent perception and a self-adaptive regulation and control method thereof. Comprising a multi-dimensional environment perception unit, an environment data fusion and modeling unit, a self-adaptive regulation and optimization decision unit, a modular air purification execution unit and a man-machine interaction and user preference setting unit. According to the method, multi-element parameters are collected, fusion modeling is carried out, a pollution source is identified and predicted, a multi-target optimization algorithm is applied to generate an optimal purification strategy, and then a purification execution unit is controlled. The indoor air quality can be finely and dynamically managed, the purification efficiency is remarkably improved, energy consumption, operation noise and the service life of a filter material are intelligently balanced, and a personalized healthy breathing environment is provided.

The invention belongs to the technical field of sewage treatment, and particularly relates to an intelligent response filter material, a preparation method thereof and a denitrification deep-bed filter tank. The intelligent response filter material is of a three-layer composite structure and sequentially comprises a carbon source inner core, a transition layer and a wrapping layer from the inner layer to the outer layer; the carbon source core comprises aquatic plant powder, aggregate and reinforced fibers, the transition layer adopts a hydrophilic modified porous carrier, and the wrapping layer adopts a pH responsive polymer. According to the invention, the intelligent response type filter material prepared from aquatic plant straws is adopted, and the pH response type envelope can automatically adjust the release rate of a carbon source according to the pH change caused by the denitrification process, so that intelligent on-demand supply of the carbon source is realized, and the denitrification efficiency and the utilization rate of the carbon source are greatly improved.

Aspects of the present disclosure are directed to apparatuses and related method involving filters and filtering. As may be implemented in accordance with one or more embodiments, a filter material is configured to filter particulates from air passing through the filter material, and includes an adjustable component to provide two or more sizing configurations of the filter material. Coupling material is configured and arranged to couple a surface of the filter material to an air passage opening of a ventilator apparatus, while facilitating air flow through the filter material and with the air passage opening. The coupling material and filter material are configured for subsequent concurrent removal from the ventilator apparatus.

A medical device delivery arrangement that includes a medical device, a delivery system, and a filter arrangement. The delivery system includes a catheter and a guide shaft that are configured to move independently from one another. The filter arrangement is configured to move between a constrained-collapsed position and a deployed position. The filter arrangement includes a filter frame and a filter material. The guide shaft is moveable relative to the filter arrangement between a constraining and non-constraining position. The filter arrangement is positioned in the constrained-collapsed position when the guide shaft is in the constraining position due to the guide shaft being positioned partially or fully over the filter arrangement. The filter arrangement is in the deployed position when the guide shaft is in the non-constraining position due the guide shaft being positioned distal to the filter arrangement.

The application discloses a kind of nanocellulose modified acrylic water-based emulsion and its preparation method and application, it is related to the technical field of polymer composite.A kind of modified acrylic water-based emulsion includes 180-220 parts of acrylate monomer, 45-60 parts of functional monomer, 3-5 parts of nanocellulose liquid, 4-6 parts of emulsifier, 1.5-2 parts of initiator, 2-3 parts of sodium bicarbonate and 275-300 parts of deionized water, wherein functional monomer includes hydroxy acrylate, acrylonitrile and fluorine-containing acrylate.By using fluorine-containing acrylate with nanocellulose to modify acrylic emulsion, water-based emulsion with good film-forming performance can be prepared, and the formed coating has good adhesion, stain resistance, heat oil resistance and mechanical strength, if the water-based emulsion is applied to the surface modification of filter material, not only can improve the hand feeling of filter material, but also can improve the stain resistance and service life of filter material surface.

A coffee making system includes a multi-use filter body. The filter body includes a base, a top portion, and a sidewall connecting the base and the top portion, the sidewall at least partially including filter material. The filter material is adapted to allow the passage of liquid and prevent the passage of coffee grounds. The filter body is selectively useable in an inverted position as a filter in a press coffee making mode of operation and selectively useable in an upright position in a pour-over coffee making mode of operation. In another version, the filter body and a transverse filter body combine to form a dual filter arrangement that can be used in a press coffee maker and / or to make an infused beverage.

To make it possible to easily perform an assembling work.SOLUTION: A filter includes: a filter medium 2 having each folding surface 21a facing in opposite directions by folding of a sheet-shaped filter material 2A in an accordion shape, each end face 21b and each lamination plane 21c; a frame body 3 which opens each folding surface 21a and is provided on each end face 21b and each lamination plane 21c; and a sheet member 4 which is so provided as to cover the end face 21b of the filter medium 2, and is bonded to the end face 21b by an adhesive. The sheet member 4 and the frame body 3 are partially bonded by the adhesive, and a seal material is filled between an opening edge (covering part 3Ab) of the frame body 3 and an end edge on the end face 21b side of each folding surface 21a along the opening edge.SELECTED DRAWING: Figure 1

The invention discloses a gasoline filter element assembly machine and a using method thereof, and belongs to the technical field of gasoline filter element assembly.The gasoline filter element assembly machine comprises a workbench, a plurality of filter material positioning mechanisms are linearly arranged on the side wall of the workbench at equal intervals, and paper filter materials to be glued are arranged on the filter material positioning mechanisms; a downward pressing mechanism is arranged at each circular opening in the upper surface of the workbench, an end cover is arranged at the output end of each downward pressing mechanism, the filter material positioning mechanism comprises a cylinder, a cover body and a chassis, a limiting plate is arranged on the side wall of the cylinder, the front edge of the limiting plate can make contact with a crease of a paper filter material, and a gluing mechanism is arranged above the cylinder. The folding marks of the paper filter material are limited, deformation, deviation and adhesion of the folding marks during gluing are avoided, the design can be adjusted to adapt to filter materials with different folding mark numbers, universality is improved, glue brushing is guided, glue consumption is reduced, overflowing and hole blocking are prevented, the filter area is guaranteed, the process is simplified through integrated design, the rejection rate is reduced, and the filter performance and efficiency are both considered.

The invention belongs to the technical field of fishpond filtering materials, and discloses a preparation method of a fishpond filtering composite carbon material and the fishpond filtering composite carbon material. The preparation method of the fishpond filtering composite carbon material comprises the following steps: 1) performing kneading and extrusion molding treatment on mixed powder comprising modified bentonite, biomass powder, diatomite, a pore forming agent and a photocatalyst and a binder solution to obtain a green body; 2) drying the green body, performing multi-section programmed heating carbonization in an inert atmosphere, and cooling to obtain a porous carbon ceramic framework loaded with a photocatalyst; 3, the porous carbon ceramic framework is soaked in the graphene oxide dispersion liquid, and the fishpond filtering composite carbon material.The fishpond filtering composite carbon material is obtained.The preparation temperature is relatively low, the fishpond filtering composite carbon material has a developed macropore-mesopore-micropore graded pore structure, and efficient physical adsorption, photocatalytic degradation and microbial biofilm culturing functions can be achieved at the same time.

The invention relates to the technical field of separation and filtration control, and discloses a backwashing energy-saving control method and system for a filter tank of a water purification plant, and the method comprises the steps: analyzing the pore change condition and resistance distribution condition of a filter layer according to filter tank parameter data collected by a preset sensor in real time, and calculating the pollution degree; calculating a backwashing trigger water volume threshold value based on preset design parameters, calculating a load threshold value based on the accumulated treated water volume, and if the pollution degree is greater than the backwashing trigger water volume threshold value or the treated water volume is greater than the load threshold value, triggering backwashing and generating a backwashing instruction; analyzing the physical characteristics of the filter material, calculating the critical value of the expansion rate of the filter material, calculating the backwashing water quantity and the backwashing gas quantity in combination with the pollution degree, and outputting a backwashing parameter set; controlling corresponding equipment to perform backwashing operation, and if the water quality index is greater than or equal to a preset water quality standard, stopping the backwashing operation; according to the invention, the resource utilization rate can be improved while the flushing safety is ensured, the energy consumption is saved to the greatest extent, the filter material is protected, and the energy is saved.

The invention discloses a circulating water purification treatment process for heat exchange equipment, and relates to the technical field of circulating water purification treatment, and the circulating water purification treatment process comprises the following steps: preparing a polyaspartic acid-silane functionalized grafting intermediate; selecting a porous zeolite matrix, and performing acid activation treatment; the preparation method comprises the following steps: preparing a zeolite matrix, soaking the zeolite matrix in sol, standing, defoaming, heating and calcining to obtain a nano TiO2 coated zeolite matrix of which the surface is coated with nano titanium dioxide; immersing the nano TiO2 coated zeolite matrix into the solution, adjusting the pH value of the solution, and stirring for reaction to obtain a PASP functionalized zeolite filter material; and immersing the PASP functionalized zeolite filter material into a silver nitrate solution, carrying out photocatalytic reduction, and carrying out in-situ reduction and deposition on silver ions to obtain the silver / titanium dioxide-polyaspartic acid synergistic functionalized composite filter material. The composite filter material with synergistic functions realizes efficient scale inhibition and sterilization and rapid purification, shows excellent stability and durability under severe working conditions of high temperature, long period and the like, and is environment-friendly and low in maintenance cost.

The invention relates to the technical field of sewage treatment, and particularly discloses a high-porosity slow-release microelement anti-mineralization sulfur autotrophic denitrification filter material and a preparation method thereof. The sulfur autotrophic denitrification filter material is of a core-shell structure, a complex of sulfur, volcanic rock micro powder and a curing fungicide is used as an inner core, and a hydrophobic polymer coating layer and a porous ceramic bonding layer are sequentially coated on the surface of the inner core; the hydrophobic polymer coating layer is a hydrophobic breathable composite film formed by crosslinking a polydimethylsiloxane prepolymer and calcium alginate. The volcanic rock natural trace elements are utilized to realize waste control by waste, surface mineralization is effectively prevented through the hydrophobic middle layer, the activity of the microbial inoculum is protected in combination with a low-temperature flexible sintering process, and the whole device has the advantages of high porosity, light weight, quick start, long service life, low backwashing energy consumption and the like. Compared with the prior art, the invention has remarkable innovativeness and creativity in the aspects of structural design, material selection and process integration.

The present disclosure claims a combined filter element mechanism, which is applied to a shower head or a faucet and comprises a housing with a hollow cavity; a cover plate detachably arranged on the housing; and a plurality of sub-filter boxes sequentially arranged in a cavity enclosed by the housing and the cover plate. Each sub-filter box is respectively provided with a filter material, and the filter materials in the plurality of sub-filter boxes are the same or different. The present disclosure facilitates the replacement of filter materials in the sub-filter boxes through the detachable connection between the housing and the cover plate as well as the detachable connection of sub-filter boxes. Users can fill corresponding filter materials according to water qualities or personal preferences, thus effectively solving the problems that the existing shower head filter element cannot perform customized filtration according to water qualities and is inconvenient for replacement.

The invention discloses a control method of a leisure water body filtering system based on artificial intelligence, and relates to the technical field of intelligent monitoring and control of water quality of water bodies, a topological graph model is established and combined with real-time multi-source sensor data, global monitoring of a water body pollution state is realized, and accurate sensing of water quality change of each subarea is ensured; the probability and migration path of the pollution source are dynamically analyzed through the graph neural network, the system can quickly identify a high-pollution area, and resource waste caused by traditional fixed-frequency filtering is avoided; based on a partition filtering activation mechanism of a pollution source probability, high-strength treatment such as ultrasonic flocculation and negative pressure filtering is only started in a target partition, and the energy consumption of a non-pollution area is synchronously reduced; through dynamic resource scheduling, unnecessary equipment operation is reduced, and the service life of a filter material is prolonged; and in cooperation with seasonal threshold adjustment, the system adapts to water quality baseline changes in dry seasons and rainy seasons, and the false triggering risk is reduced.

The invention relates to the technical field of cleaning devices, and discloses a waste gas dedusting and cleaning device for atmospheric environmental pollution control, which comprises a box body, a base is mounted at the bottom of the box body, a sleeve is fixedly connected to the inner wall of the box body, a partition plate is further fixedly connected to the inner wall of the box body, and a driving motor is mounted at the top of the partition plate. The filter element barrel continuously and slowly rotates, so that the surface area of the whole filter screen faces the air inlet direction with the highest polluted air concentration in turn, the consumption of filter materials is very uniform due to the rotating design, all the filter materials are fully utilized, and the air purification effect is improved. And the whole filter element barrel almost simultaneously reaches the end point of service life. The effective service life of the filter screen can be greatly prolonged, the air inlet efficiency can be optimized, the filter screen is utilized to the maximum extent, the purification effect is further improved, the swinging grating plate can actively guide the suction port to different directions, and purification dead corners are reduced.

The invention relates to the technical field of industrial filter materials, in particular to a spunlace filter material for a filter cartridge and a preparation method of the spunlace filter material for the filter cartridge, and the preparation method comprises the following steps: S1, respectively opening and mixing modified polytetrafluoroethylene fibers and polyester fibers to obtain mixed fibers, and carding, lapping, combining and pre-needling the mixed fibers to obtain a pre-needled felt; s2, the pre-needled felt is subjected to spunlace reinforcement and drying shaping, and a filter material plain felt is obtained; s3, singeing the surface of the filter material plain felt, soaking the filter material plain felt in the finishing liquid, mangling the soaked filter material plain felt, and drying to obtain the spunlace filter material for the filter cartridge. The flame retardant property, corrosion resistance and filtering efficiency of the spunlaced filter material for the filter cartridge are comprehensively improved through chemical crosslinking of epoxy groups introduced to the surfaces of the modified polytetrafluoroethylene fibers and amino groups on the surfaces of the modified silicon dioxide and a finishing liquid impregnation technology.

The invention discloses a filter non-woven fabric. The filter non-woven fabric comprises a surface layer, a middle layer and a bottom layer which are sequentially stacked, wherein the surface layer is a fine filtering layer and is prepared by electrostatic spinning of nanofibers; the middle layer is arranged as a main filter layer and is prepared from high-efficiency electret melt-blown polypropylene; the bottom layer is a supporting layer and is made of spun-bonded polyester; the surface density is set to be 0.3-0.8 g / m, and the thickness is set to be 5-15 microns, so that a superfine limiting network is formed; the surface density of the middle layer is set to be 15-30 g / m, the thickness of the middle layer is set to be 0.3-0.6 mm, and an electret adopts fluoridation treatment and a corona electret; the surface density of the bottom layer is 20-40g / m, and the thickness of the bottom layer is 0.15-0.3 mm. According to the non-woven fabric for the filter, the nanofibers are directly deposited on the melt-blown layer through one-step online compounding, then the spun-bonded bottom layer is compounded through hot pressing, production steps are reduced, the interlayer binding force is enhanced, meanwhile, the nanofibers are only compounded on the surface layer of the filter material, and the cost can be greatly reduced.

The invention relates to the technical field of filter materials, and discloses a spunlace high-flux filter bag with a gradient aperture structure and a forming process thereof, the spunlace high-flux filter bag comprises a surface layer, a middle layer and a bottom layer which are respectively formed by 0.8 dtex polyester fiber, 1.5 dtex polyester fiber and 3.0 dtex polyester fiber, and a three-dimensional gradient structure with the aperture being 8 microns, 25 microns and 60 microns in sequence is formed through three-step gradient spunlace treatment. The filter bag does not need an adhesive, integration is achieved through mechanical entanglement of fibers, pollutants are intercepted step by step in the thickness direction, and blocking is effectively delayed. The initial flux is greater than or equal to 850L / (m < 2 >. H) under 0.1 MPa, the rejection rate of 5-micron particles is greater than 99%, and the time for attenuating the flux to 50% is prolonged by 2.3 times or more compared with that of a traditional filter bag.

The invention relates to the technical field of gas adsorption materials, in particular to a plasma modified UiO-66-NH2 / activated carbon composite filter material as well as a preparation method and application thereof. The preparation method comprises the following steps: adding activated carbon into a UiO-66-NH2 precursor solution, vacuumizing in a vacuum drying oven for 1-3 hours, then transferring into a reaction kettle, heating to 80-120 DEG C, reacting for 20-25 hours, cooling to room temperature, washing and drying to obtain a UiO-66-NH2 / activated carbon composite material; and placing the UiO-66-NH2 / activated carbon composite material in a plasma reactor, and carrying out plasma treatment by taking H2 / Ar as a working gas to obtain the plasma-modified UiO-66-NH2 / activated carbon composite material. According to the invention, UiO-66-NH2 is loaded in the activated carbon, so that the effects of increasing the specific surface area of the activated carbon and developing a microporous structure are achieved, the adsorption capacity of low-concentration trichloro ethylene reaches 281 mg / g, and the UiO-66-NH2 loaded activated carbon is a filter material for effectively adsorbing trichloro ethylene (TCE).

The utility model discloses an efficient particle membrane filtering device. The efficient particle membrane filtering device comprises a skid structure, the skid structure comprises a plurality of particle film high-speed filters, the particle film high-speed filters are arranged in a single-branch, multi-branch and grouped mode in a skid, each particle film high-speed filter comprises a column type filter assembly, a water inlet multi-way valve and a water production multi-way valve, and a valve, a pipeline, an instrument and an electric control system are further arranged in the skid. The filter operates according to the sequence of operation, waiting, backwashing and commissioning, solves the problem that a conventional filter is large in backwashing water amount, easy to be polluted and blocked and long in process, can realize high-flow-rate, high-precision and high-stability filtration, can treat large-flux incoming water, and reduces the use of filter materials; a column type skid structure is adopted, the occupied area of the filter is greatly reduced, the technological process is shortened, flexible and free permutation and combination are achieved, various complex water qualities can be dealt with, and the requirement for the inlet water quality is relatively wide.

The invention discloses a low-turbidity water treatment method and system, a medium and a product, and the method comprises the following steps: obtaining a first floc particle size of floc; determining the particle size state of the first floc particle size; obtaining morphological indexes of the floc; when the particle size state is a first particle size state, the stirring frequency of the auxiliary stirring device of the micro-flocculation reactor is determined, and stirring is conducted; when the particle size state is a second particle size state, calculating the increment of the flocculation agent; obtaining a second floc particle size, re-judging a particle size state, and determining and adjusting a flocculation reagent formula and a dosage of the micro-flocculation system and a stirring frequency of an auxiliary stirring device of the micro-flocculation reactor according to the particle size state until the second floc particle size is within a preset particle size interval, so as to obtain a target floc; and obtaining a final floc particle size corresponding to the target floc, determining a filtering parameter of a material layer of the deep filtering unit based on the final floc particle size, and controlling the filtering material layer to filter according to the filtering parameter. The low-turbidity water treatment efficiency can be improved.

The application discloses a gluten-free powder and flour vacuum feeding system, which comprises a feeding machine body and a filter material body. The filter material body comprises a volute-shaped outer filter element and an inner filter core, and the inner filter core is located inside the outer filter element. An outer airflow cavity is formed between the outer filter element and the feeding machine body, an inner airflow cavity is formed between the outer filter element and the inner filter core, and the outer airflow cavity and the inner airflow cavity are communicated. The application relates to the technical field of pneumatic vacuum feeding and conveying, and the filter material body reciprocates up and down in a rotating state. The powder is efficiently separated from the filter material body under the action of centrifugal force and continuous vibration, and dynamic desorption is realized. The filter material body adopts a double-layer structure of the volute-shaped outer filter element and the inner filter core for grading filtration. The outer filter element and the feeding machine body form the outer airflow cavity, and the inner filter core and the outer filter element form the inner airflow cavity. When the airflow carries the powder, the filter screen of the outer filter cavity can preliminarily adsorb part of the powder, the amount of the powder entering the inner filter core is reduced, and the continuous negative pressure suction capacity is improved.

The utility model relates to a kind of waste gas separation and recovery device, including gas-liquid separation tank, cooling water tank, gas holder, wax tower and filter box, the end of gas-liquid separation tank is equipped with filter box for filtering waste gas, and the one end of filter box is inserted with air inlet pipe for air intake, and the top end of filter box is equipped with detachable cover plate, and the middle of filter box is equipped with adjusting assembly, and adjusting assembly includes two limit plates rotationally connected in filter box inner side wall. The utility model detects the flow rate of intake and exhaust by two flowmeters in real time, when the exhaust flow rate reduces, the operator drives first connecting rod horizontal movement by starting electric push rod, thereby driving second connecting rod and limit plate rotation, thereby changing the size of intake passage, thereby changing net gas flow rate, simultaneously driving first filter screen rotation, shake off the impurity on the surface of first filter screen, avoid corner dust blockage, improve the stability of adsorbing filter material filtering, thereby improve the stability of gas flow.

A filter material for manufacturing a segment of a smoking article is described. The filter material includes a hydro-entangled nonwoven, which includes fibers. The fibers are selected from the group consisting of pulp fibers, fibers of regenerated cellulose and mixtures thereof. These fibers are contained in the nonwoven in an amount of 50% to 100% of the mass of the hydro-entangled nonwoven. The nonwoven is in the form of a web, has a longitudinal direction in the running direction of the web, a cross direction orthogonal thereto and lying in the plane of the web and a thickness direction orthogonal to longitudinal direction and the cross direction. The nonwoven is shaped to have a wave structure in the plane formed by the cross direction and the thickness direction with a wave height from 50 μm to 1000 μm and a wave length from 150 μm to 5000 μm.

The utility model relates to the technical field of filter elements, in particular to a filter material one-way release structure and a filter element, the filter material one-way release structure comprises a pipe body, a connecting part and a water inlet part, one end of the pipe body is provided with a water inlet, the other end of the pipe body is provided with a water outlet, one end of the pipe body is provided with a positioning part, and a cavity for filling a filter material is formed in the pipe body. A baffle and a protruding block are fixedly installed in the cavity, and the back face of the baffle is rotationally connected with a rotating plate. According to the utility model, through the combination of the baffle plate, the rotating plate and the telescopic rod, water flow can only pass through unidirectionally, the backflow of impurities is avoided, the utilization efficiency of a filter material is improved, the purification effect of the water flow during filtration is ensured, and the damage to the filter material caused by reverse flow is prevented; the water flow enters from the water inlet and is discharged from the water outlet after being treated by the filter material; compared with a traditional design, the one-way opening further ensures one-way flow, the filtering effect is optimized, waste of filter materials is reduced, the service life of the filter element is prolonged, and the reliability of the system is improved.

The invention relates to the technical field of industrial waste gas purification, and particularly discloses a magnetic control type micro-nano bubble industrial waste gas absorption and purification device which comprises a base, a purification mechanism arranged on the base and used for purifying waste gas, and a regulation and control mechanism arranged on the base and used for regulating and controlling the waste gas. The regulation and control mechanism is used for regulating the gas inlet and outlet speed of the device. By arranging the purification mechanism, when the device is used, the device can block suspended colloid larger than pores by utilizing the pores of a filter material quartz sand filter membrane through a purification box, and adsorb dissolved organic pigment heavy metals in water by virtue of pores and chemical groups on the surfaces of filter materials such as activated carbon zeolite and the like under the adsorption action similar to a sieve; and in addition, a first motor can be started to drive a connecting pipe and a transverse pipe to extract waste gas in a filter pipe into a purification box for purification and filtration, gas inlet of the device can be regulated and controlled through a pipeline valve, and the use safety of the device is improved.