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244 results about "Filter material" patented technology

Exhaust gas separation and recovery device

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.
Owner:YANTAI HENGRAN PLASTIC TECHNOLOGY CO LTD

Scraper device and its application in filter rod forming machine

This utility model relates to the technical field of cigarette production equipment, and discloses a scraper device and its application in a filter rod forming machine. The scraper device is used to prevent filter material bundles from getting caught in the fabric roller. The scraper device includes a main body, in which an air inlet channel and an air blowing channel are provided. One end of the air inlet channel is connected to an external air source, and the other end is connected to the air blowing channel. The end of the air blowing channel away from the air inlet channel forms an air blowing hole on the surface of the main body. The scraper device is internally improved so that after the forming paper breaks, the external air source is activated and pumps in airflow. The airflow passes through the air inlet channel and the air blowing channel inside the scraper device and is blown out through the air blowing hole, blowing the filter material bundles away from the fabric roller to prevent the bundles from getting caught in the gaps of the fabric roller, reducing the investment cost of subsequent maintenance and cleaning, and improving the efficiency of equipment use.
Owner:CHINA TOBACCO ZHEJIANG IND CO LTD

A feeding device for PVC pipe production

ActiveCN224426408UAvoid affecting product qualityAccurate weighing dataProcess engineeringFilter material
This utility model discloses a feeding device for PVC pipe production, comprising: an extruder body; a storage silo connected to the feed inlet of the extruder body; a feeding silo located on one side of the extruder body; a negative pressure pipe connecting the feeding silo and the storage silo, wherein a negative pressure fan is connected to the negative pressure pipe; and a weighing component located on the feeding silo for weighing materials. The advantages of this utility model are that it allows for the sequential weighing of different materials using the weighing component, resulting in accurate weighing data, avoiding uneven material proportions that could affect product quality, filtering materials to prevent clumping and impurities from entering, thus improving production quality, facilitating impurity removal, and increasing work efficiency.
Owner:HANDAN JINGWEN WATER SAVING EQUIP INSTALLATION CO LTD

Air compressor with freeze-drying precision filter function

The application relates to an air compressor with a freeze-drying precision filter function and belongs to the technical field of air compressors. The air compressor comprises a mounting frame, the inside of the mounting frame is provided with an air compressor, a primary filter, a freeze dryer and multiple precision filters, the primary filter comprises a filter tank, a sealing cover is fixedly installed on the upper side of the inner wall of the filter tank through bolts, a filter assembly is arranged at the bottom of the sealing cover, the filter assembly comprises a filter screen cylinder fixedly installed at the bottom of the sealing cover, the application can respectively process according to the blockage degree of the filter structure, when the blockage is slight, the device can realize online cleaning without shutdown, the filter material can be reused, the single-use service life is significantly prolonged, the filter material replacement frequency is reduced, and the use cost of the user is reduced, when the blockage is severe, the device will stop and warn the operator to replace the filter material, the problem that the motor is damaged due to blockage is avoided, and the energy saving property during the motor operation is ensured.
Owner:WANBOLUN MECHANICAL & ELECTRICAL EQUIPMENT (GUANGZHOU) CO LTD

A filter for charging refrigerant

The utility model relates to refrigeration equipment technical field discloses a kind of filter of refrigerant filling, including cylindrical shell, the inside of cylindrical shell is provided with mounting seat, the cylindrical shell is made of high-strength corrosion-resistant material, such as stainless steel, to ensure that under the long-term effect of refrigerant cannot be corroded and damaged, ensure the service life of filter, the inside of mounting seat is provided with internal thread, the inside of cylindrical shell is provided with filter core, the periphery of filter core is provided with docking seat.The filter of refrigerant filling, the filter of the utility model adopts high-precision filter material, can effectively remove small impurity particles in refrigerant, improve the purity of refrigerant, to improve the operating efficiency and stability of refrigeration system, reduce the occurrence of system failure, prolong the service life of refrigeration system, by the thread connection mode of the docking seat of filter core and mounting seat, greatly simplify the installation and replacement steps of filter core, reduce maintenance difficulty and time cost.
Owner:SICHUAN HAOANYI ENVIRONMENTAL TECHNOLOGY CO LTD

Filter cartridge with inner and outer combination and water dispenser with same

The utility model discloses a filter core and water dispenser with its of inside and outside combination, filter core includes paper folding and activated carbon filter material, and paper folding inside has water outlet cavity, and the outside of paper folding is first water inlet surface, and activated carbon filter material is annular, and activated carbon filter material is set in paper folding outside, and the outside of activated carbon filter material is second water inlet surface, and the inside of activated carbon filter material is water outlet surface, and water outlet surface is linked with first water inlet surface, and the utility model discloses a paper folding is set in activated carbon filter material, and makes raw water to pass through activated carbon filter material and paper folding filtration in proper order, and due to activated carbon filter material can intercept the macroparticle of tap water, thereby avoids these macroparticles to accumulate quickly on paper folding, and reduces the pollution of paper folding degree, and then prolongs the service life of paper folding.
Owner:FOSHAN MICRO MIDEA FILTER MFG CO LTD

A gravity settling multi-stage filtration device

ActiveCN224479124UFilter materialOil filter
The utility model discloses a gravity settlement multistage filter equipment, including first oil tank, second oil tank and third oil tank, the first oil tank is installed in the top of second oil tank, the second oil tank is installed in the top of third oil tank, the bottom of first oil tank, second oil tank and third oil tank are communicated with the oil pit, the filter mechanism is installed in the oil pit inside, the utility model has the advantages that convenient maintenance, solved the hydraulic oil filter equipment in the process of using, the filter material inside filter equipment is inconvenient to maintain replacement, is difficult to apply convenient and reliability demand high scene, and maintenance difficulty is higher, increased technical staff work load's problem.
Owner:唐合科技(内蒙古)股份有限公司

A small-diameter deep well hole-forming construction method

This invention relates to the field of geotechnical drilling engineering technology, and discloses a method for drilling small-diameter deep wells, comprising the following steps: using a positive circulation drilling rig to prepare a mud system based on the laterite soil of the construction site; using a composite reinforced roller cone bit for drilling operations in pebble layers; using a semi-automatic pulley system to connect or disconnect drill rods; using a positive circulation drilling rig to perform a segmented lifting and scraping wall composite process for drilling, in which a hole guide tool is used for scraping the wall; determining the depth of the aquifer before lowering the well casing; completing the butt joint connection of the well casing by welding, and completing the lowering and installation of the well casing; after the well casing is installed, sequentially performing mud replacement, air compressor agitation and well washing, and simultaneously completing the symmetrical backfilling of filter material; conducting a pumping test to complete the well completion quality acceptance. This invention can significantly improve drilling efficiency, well completion quality, and construction safety in complex pebble formations, while effectively reducing construction costs.
Owner:HEBEI CONSTR & INVESTIGATION RES INST

A detachable anti-clogging filter dam and its application method

The present application relates to the technical field of aquaculture tail water treatment, and particularly relates to a detachable anti-blocking filter dam and an application method thereof, which comprises a filter dam main body, an adjustable baffle, a pull-out filter core module and an anti-blocking module; the filter dam main body is spliced by a plurality of independent filtering units through a quick detachable structure; the adjustable baffle is arranged in the main body to realize switching between horizontal flow and vertical flow; the pull-out filter core module is assembled in the unit and is provided with a sealing structure between the main body frame; the anti-blocking module comprises a flow guide uniform distribution plate at a water inlet end and a hierarchical filter material combination in the filter core module. The present application adopts an integrated technical solution of overall detachability, hierarchical anti-blocking, dual-mode adaptation and online maintenance, and solves the problems of traditional filter dam, such as blocking, jamming, corrosion, complex maintenance, high cost and poor adaptability, from the aspects of structure and application, so as to realize the comprehensive technical effects of efficient purification, long-term stability and low-cost operation.
Owner:TIANJIN SEA WATER DESALINATION & COMPLEX UTILIZATION INST STATE OCEANOGRAPHI +1

High speed filter backwash apparatus

The utility model discloses a high -speed filter backwash device relates to high -speed filter cleaning technical field, it includes filter jar, air inlet pipe and water inlet pipe, be provided with the air pipe ring pipe and the water pipe ring pipe below the filter material in the filter jar, the air pipe ring pipe is provided with the exhaust hole, the air pipe ring pipe is connected with the air inlet pipe, the water pipe ring pipe is provided with the drain hole, the water pipe ring pipe is connected with the water inlet pipe, the water pipe ring pipe is located the air pipe ring pipe top, the utility model discloses can solve the place that the existing backwash mode exists the big air quantity will cause the filter material to roll over even to run the material, finally leads to the backwash effect of high -speed filter to be poor, the suspended solid in filter material is more, the problem that the pressure difference rises very fast after backwash.
Owner:广西钢铁集团有限公司 +1

Anti-clogging water permeable pipe

ActiveCN224442326USoil scienceFiltration
This utility model relates to the field of permeable pipe technology and discloses an anti-clogging permeable pipe, comprising a permeable pipe body: both ends of the permeable pipe body are equipped with mounting rings, a fine filter layer is sleeved on the outer surface of the permeable pipe body, both ends of the fine filter layer are fixed to the mounting rings, a coarse filter layer is sleeved on the outer surface of the mounting rings, both ends of the coarse filter layer are fixed to the mounting rings, and the fine filter layer is made of polypropylene filter mesh. This anti-clogging permeable pipe, by combining the polypropylene filter mesh and non-woven geotextile into a double-layer filtration structure, can fully utilize the synergistic advantages of the two materials, significantly improving the overall protective performance of the permeable pipe. This clearly defined layered filtration design avoids rapid clogging caused by excessively fine single materials and solves the problem of insufficient interception of fine particles by a single coarse filter material. In addition, the double-layer structure can buffer soil stress, adapt to foundation deformation, and extend the service life of the permeable pipe.
Owner:YIZHENG KANGSHUN GEOTECHNICAL MATERIALS CO LTD

A device for embedding a borehole pressure meter in a borehole

ActiveCN224550094UFilter mediaFilter material
The utility model relates to a kind of hole inside upward hole osmotic pressure gauge burying device, including the filter protection component, expandable fixed component, connection adjusting piece and detachable conveying rod connected in turn.Filter protection component contains double-layer porous sleeve: inner sleeve contains osmotic pressure gauge and fills filter medium, and outer sleeve is filled with support filter material between inner sleeve;Expandable fixed component includes elastic sealing member, reset member and support framework, and framework is provided with wire shaft direction passage and connection structure;One end of connection adjusting piece cooperates framework connection structure, and the other end is provided with transmission cooperation part;Conveying rod one end is provided with matching drive part, and the other end is provided with extension connection structure.The utility model realizes upward hole stable placement by expandable fixed component, double-layer sleeve inverse filtration structure prevents silting up and protects osmotic pressure gauge, and detachable design supports repair and reuse, adapts to deep hole and short-term / long-term monitoring demand, and provides reliable technical means for underground engineering osmotic pressure monitoring.
Owner:CHANGJIANG RIVER SCI RES INST CHANGJIANG WATER RESOURCES COMMISSION +2

Novel filter material and preparation process thereof

PendingCN122352175APolymer scienceDivinylbenzene
This invention relates to the field of filter material production technology, specifically to a novel filter material and its preparation process, comprising the following steps: drying and swelling styrene-divinylbenzene copolymer spheres, then adding them to a sulfonation tank; adding concentrated sulfuric acid to the sulfonation tank, starting a first motor to drive a stirring blade for stirring, and heating to carry out the sulfonation reaction; initially, the stirring blade rotates counterclockwise; at the end of the reaction, a second motor is started to drive a lead screw to rotate, causing the moving parts and stirring blades to move to the bottom of the rotating shaft, while simultaneously the gear rotates under the action of the gear plate, causing the stirring blades to rotate 180°, and then rotate clockwise; after sulfonation, a strongly acidic cation exchange resin is obtained. This invention, by setting a driving structure to change the position of the stirring blades according to different reaction stages, and simultaneously changing the tilt angle of the stirring blades, avoids the styrene-divinylbenzene copolymer spheres floating on the surface of concentrated sulfuric acid or accumulating at the bottom of the sulfonation tank, thus preventing a decrease in yield.
Owner:GUANGZHOU LINGCHAO TECHNOLOGY CO LTD

One-key pressing switch filter material water outlet device

ActiveCN224478505UKey pressingWater flow
The utility model discloses a one key presses and switches filter material's water outlet device, including the body that is equipped with the water passing cavity and the water outlet, and the water passing cavity is connected with the water outlet, is equipped with the ejection assembly in the body, and it can axial movement and has the cavity of placing filter material. Ejection assembly realizes the cavity switching in the body through the cooperation of the guide column and the undulating guide groove, and in combination with spring reset and one -way valve check structure ensures that the operation is convenient and safe. The utility model discloses through pressing quick replacement filter material, simplifies the operation step, prevents water flow splashing, optimizes water flow path to fully flush filter material, is applicable to carbonic acid spring wash head and a variety of scenes, has remarkable technical advantage and market application prospect.
Owner:XIAMEN EASO CO LTD

A filter cartridge device

PendingCN122273174ARealize individual replacementReduce replacement costsWater flowFilter material
This invention discloses a filter cartridge device, comprising a first filter cartridge, a second filter cartridge, and a third filter cartridge. The first filter cartridge has a first water flow channel, a second inlet water flow channel, and a second outlet water flow channel, with a first filter material disposed along the water flow path of the first water flow channel. The second filter cartridge has a third water flow channel and a fourth water flow channel, with a second filter material disposed along the water flow path between the third and fourth water flow channels. The third filter cartridge is detachably disposed within the fourth water flow channel. The first and second filter cartridges are detachably connected, and the third water flow channel is connected to the second inlet water flow channel. The outlet end of the third filter cartridge is detachably connected to the first filter cartridge and is connected to the second outlet water flow channel. This solution enables individual replacement of filter cartridges of different levels, reducing filter cartridge replacement costs.
Owner:QINGDAO HAIER STRAUSS WATER EQUIP CO LTD +1

Modular rain flood resource deep purification and underground storage integrated device

The application relates to the technical field of ecological environment engineering, and discloses a modular rain flood resource deep purification and underground storage integrated device, which comprises a radial shear purification module, a hydraulic closed locking assembly and a spiral push flow storage module which are coaxially and communicatively arranged from top to bottom; the radial shear purification module comprises a first shell, a composite filter material layer filled in the first shell, an inverted funnel-shaped flow guide cover arranged above the composite filter material layer and a central siphon assembly, a horizontal annular flow channel is formed between the lower edge of the inverted funnel-shaped flow guide cover and the upper surface of the composite filter material layer; the spiral push flow storage module comprises a second shell and a spiral flow guide plate arranged in the second shell. Through cooperation of the inverted funnel-shaped flow guide cover and the central siphon assembly, vertical gravity flow during cleaning is converted into horizontal radial converging flow along the filter material surface, the integrity of a biofilm structure is maintained, and long-term stable operation of the filter layer can be realized without external power.
Owner:SUZHOU ZHONGHENGTONG ROAD & BRIDGE GRP CO LTD

Flat integrated filter bag

The present application relates to the technical field of filter bag, in particular to a kind of flat integrated filter bag, including cloth bag filter mechanism, cloth bag filter mechanism is fixedly connected with support pipe in, support pipe both ends are inserted into external environment, several filter holes are opened in the outside of support pipe, liquid is filtered first by cloth bag filter mechanism, then liquid is filtered again by several filter holes in the outside of support pipe, filtered liquid is discharged by the lower end of support pipe.The present application filters water source first by cloth bag filter mechanism, then water source passes through several filter holes and enters into support pipe to be filtered again and discharged, when water flow backflush cleaning is carried out, by backflush liquid into guide cavity drives transmission mechanism to rotate, by transmission mechanism drives beating mechanism to beat cloth bag filter mechanism, by beating mechanism to beat cloth bag filter mechanism, filter cake formed by filter material is cleaned under the impact of water flow.
Owner:TAIZHOU HAOTIAN IND FABRIC +1

Loading cabinet

This application provides a feeding cabinet that integrates the feeding pump, feeding pipeline, filtration system, conveying pipeline, discharging pipeline, and sampling pipeline into a single cabinet, reducing the floor space required, facilitating installation, minimizing external pipelines, and lowering maintenance costs. Simultaneously, this feeding cabinet filters materials before feeding, ensuring material cleanliness. The feeding cabinet also integrates a sampling pipeline for taking samples of the filtered material to test whether it meets quality requirements.
Owner:SHANGHAI SENSONG HAOCHUN NEW MATERIAL TECHNOLOGY CO LTD

An acrylic resin waste gas treatment filtering device

ActiveCN121243972BImprove purification efficiencyImprove absorption rateAcrylic resinExhaust fumes
The present application relates to waste gas treatment technical field, specifically to a kind of acrylic resin waste gas treatment filter equipment, including main body, the main body inside is equipped with purification cavity, the main body circumferential outer wall is fixedly connected with shunt pipe, the shunt pipe bottom is equipped with several air pipes, the air pipe bottom end is penetrated to the inside of purification cavity;The inside of the purification cavity is provided with purification device, the purification device includes rotation installation in the center position of the inside bottom of purification cavity drive shaft, the inside of the purification cavity is located at the top position of drive shaft and is provided with limit frame, the center position of the limit frame bottom is penetrated and is equipped with docking interface.This application is through gas distribution plate, push plate and filter assembly linkage, to establish gas-liquid mixing neutralization system, improve the neutralization of acidic substances and the absorption efficiency of soluble VOCs, reduce the subsequent pollutant load, push plate, filter assembly and other collaborative impurities, clean filter screen, prevent secondary pollution, prolong the service life of filter material.
Owner:NANXIONG YALTON CHEM CO LTD

A low turbidity water treatment method, system, medium and product

ActiveCN121573734BFlocculationFiltration
A low-turbidity water treatment method, system, medium and product, wherein the method comprises: obtaining a first floc particle size of flocs; determining a particle size state of the first floc particle size; obtaining a morphological index of the flocs; when the particle size state is a first particle size state, determining a stirring frequency of a micro-flocculation reactor auxiliary stirring device and stirring; when the particle size state is a second particle size state, calculating an increase amount of a flocculating agent; obtaining a second floc particle size, re-determining the particle size state, and determining a flocculating agent formula of a micro-flocculation system, a dosing amount and a stirring frequency of the micro-flocculation reactor auxiliary stirring device according to the particle size state until the second floc particle size is within a preset particle size range, to obtain target flocs; obtaining a final floc particle size corresponding to the target flocs, determining a filtration parameter of a filter material layer of a deep filtration unit based on the final floc particle size, and controlling the filter material layer to filter according to the filtration parameter. The application can improve the low-turbidity water treatment efficiency.
Owner:BEIJING HUADE GREATION ENVIRONMENTAL PROTECTION EQUIP CO

Underground impact protection wall provided with a communication pipe

The utility model relates to underground anti-scour wall with communicating pipe, and the wall body is distributed with several communicating pipes, and the communicating pipe is constituted by vertical communicating pipe and several branch communicating pipes, and the branch communicating pipes of same communicating pipe are arranged on both sides of vertical communicating pipe, and the branch communicating pipe is horizontally arranged, and its inner end is connected with vertical communicating pipe, and its outer end is opened on the wall surface, and the branch communicating pipes on both sides of same vertical communicating pipe are staggered in vertical direction, and the branch communicating pipe is filled with filter material. The utility model constructs the communicating pipe on both sides of ground connected wall, and avoids or reduces the blockage of communicating pipe caused by concrete pouring, and is suitable for underground anti-scour wall and other ground connected wall.
Owner:SHENGZHOU WANGXIN JINSHUI CONSTR INVESTMENT CO LTD

One-piece injection molded air filter element seamless outer frame

ActiveCN224462417UReduce replacement costsGuaranteed isolationAir filterFilter material
The utility model belongs to air filter element technical field discloses integrated injection molding air filter element seamless outer frame, including main frame, vice frame body, a plurality of installation slot that set up on main frame, two first sliding slot that set up on main frame and a plurality of rear limit board that are located main frame rear side, main frame, a plurality of installation slots, two first sliding slots and a plurality of rear limit board are integrally formed by polyurethane foaming material through the mode of pouring into forming mould, vice frame body is detachably connected with main frame through mounting assembly, the utility model discloses the design of adjustable height of movable plate, cooperation vice frame body on a plurality of plug-in slots and elastic plug-in rod locking structure, can freely adjust the filter material containing cavity height that constitutes by lower limit board and upper limit board, makes user not need to replace outer frame main body, through simple operation can adapt to different height filter material, has promoted the scope of application, effectively reduced the replacement cost when using different filter material.
Owner:JIANGYIN HUANGDAN PURIFICATION EQUIP

air filter

PendingJP2026110344AAir filterFilter material
An air filter in which the entire outer circumference of the filter material is surrounded by a box-shaped filter frame, wherein perforations formed along the outer circumference of the air outlet surface and air inlet surface of the filter frame are made so that the filter material can be neatly and easily cut along the perforations. [Solution] An air filter in which the entire outer circumference of a filter material 40 is surrounded by a box-shaped filter frame 10, wherein a strip 30 for cutting is formed along the outer circumference of the air outlet surface 11b and the air inlet surface 11a of the filter frame 10 with perforations 20a, 20b, and the air outlet surface 11b and the air inlet surface 11a are exposed by cutting off this strip 30.
Owner:NIPPON MUKI CO LTD

Self-cleaning water filtration device

ActiveCN224541200UFiltrationRinse water
The utility model discloses a kind of self-cleaning water filtering equipment, it is related to water treatment technical field;The self-cleaning water filtering equipment includes at least two groups of parallelly arranged filter device, filter water pipeline subassembly and flushing pipeline subassembly, the filter device includes shell and filter piece, the shell is divided into first chamber and second chamber by the filter piece;The filter water pipeline subassembly includes main water inlet pipeline and main water outlet pipeline, raw water sequentially passes through the main water inlet pipeline, the first chamber, the second chamber and the main water outlet pipeline;The flushing pipeline subassembly includes flushing water inlet pipeline and flushing water outlet pipeline, flushing water sequentially passes through the flushing water inlet, the second chamber, the first chamber and the flushing water outlet, to carry out reverse flushing cleaning to the filter piece.The technical scheme provided by the utility model can reduce filter material consumption and reduce operating cost under the premise of ensuring water filtration quality.
Owner:SHENZHEN HUAGONG ENVIRONMENTAL PROTECTION TECH CO LTD

high folding high filter screen without partition

ActiveCN224541299Ureduce resistanceIncrease the effective filter areaNumerical controlThermodynamics
The utility model relates to high -efficient air filter technical field especially is involved in a kind of high folding high filter screen without partition, it includes the filter material and external frame using continuous V-type folding design.Filter material wave crest and wave trough are fixed by hot melt adhesive bonding, folding angle is 70 ° to 80 °, glue line width is 0.8mm to 1.2mm, form self-supporting structure.Production process adopts multi-axis linkage numerical control paper folding machine to combine air pressure auxiliary shaping technology, realize high-precision folding and stable setting.External frame selects metal or hard plastic, ensure that filter material is installed firm.The utility model is optimized by no partition design and high folding density, significantly reduce airflow resistance, improve filtration efficiency and dust capacity, reduce material use simultaneously, reduce cost and improve environmental protection.
Owner:FUTAI CLEAN TECH KUNSHAN

Medical grade pressure relief rest pod

The utility model discloses a medical grade pressure alleviation rest cabin, including cabin body, the inside of cabin body is provided with massage chair, the side wall of cabin body one side is fixed and is embedded with air intake cover, the sealed insertion slot of being adapted to filter material is seted up on the inner wall of air inlet pipe, and filter material is inserted in the inside of sealed insertion slot, and the side wall of filter material one side is fixed on the side wall of air inlet pipe one side through locating plate and fixed screw, and this design makes the installation and disassembly of filter material more convenient and fast, when filter material reaches the service life or needs to change, maintenance personnel can complete the operation fast, greatly shorten the equipment downtime, improve the operation efficiency and maintenance convenience of equipment, and the air induction component set up at the top of cabin can efficiently exhaust the turbid air in the cabin, and this air circulation renewal mechanism effectively maintains the freshness of the air in the cabin, avoids the problems such as peculiar smell, bacterial breeding caused by the non-communicating air, and provides a comfortable, healthy internal environment for the user.
Owner:TEYI TECH (HEFEI) CO LTD

Method for preparing electronic grade ultra-pure water

This invention relates to the field of water treatment technology and discloses a method for preparing electronic-grade ultrapure water. The method involves filtering raw water through a 500-mesh stainless steel screen to remove organic matter, residual chlorine, and odors, followed by softening treatment with ion exchange resin to reduce hardness. The pretreated water is then fed into an MBR reactor, where air bubbles are used to flush the surface of the MBR flat-sheet membrane. The effluent from the MBR biological treatment is then fed into an ultrafiltration permeate tank, where it undergoes a three-stage degassing process, including microbial elimination, removal of residual suspended solids and colloidal particles, and reverse osmosis treatment. After cooling, the water is fed into an intermediate water tank. The effluent from the intermediate water tank is pumped into an EDI water treatment system. After deep purification via EDI, resin debris and microorganisms are removed by filtration. The electronic-grade ultrapure water is then stored in a nitrogen-sealed water tank and returned to the front end of the EDI system via a circulation pipeline. This invention improves desalination rate and impurity removal accuracy, enables automatic replacement of filter materials without shutdown, and ensures continuous production.
Owner:SHANGHAI FUSHITE INSTR EQUIP

A prefabricated concrete slope protection system based on slope back drainage

ActiveCN224514249UMildewDitch
The utility model discloses a kind of prefabricated concrete slope protection systems based on slope back drainage, including retaining wall slope protection system and prefabricated module slope protection system;The retaining wall slope protection system is used for slope body vertical face slope protection and drainage;The retaining wall slope protection system includes retaining wall, counter overflow ditch and water collection / cut-off ditch pressure coping stone groove;The prefabricated module slope protection system is used for slope body inclined slope face slope protection and drainage;The prefabricated module slope protection system includes several prefabricated modules, several HDPE sleeve and drainage main pipeline;The utility model has the advantages that: point type anchor cable structure is adopted, and construction process is simplified;Retaining wall slope back drainage structure construction method is adopted, cancels traditional drain hole, adds slope back filter material belt and wall root return overflow ditch, so that slope top rainwater or slope internal stagnant water is darkly drained, frost heaving is prevented;Through darkly drained design, wall surface mildew, long green moss and other problems are avoided, and the landscape quality of slope protection layer exposed surface is improved.
Owner:BEIJING HANGTIANWANYUAN ARCHITECTURE ENG CO LTD

A silt separation system for recycling wastewater of a concrete mixing plant

PendingCN122441155APipe fittingFilter material
The present application relates to concrete mixing plant wastewater treatment technical field, more exactly, it is a kind of concrete mixing plant wastewater recycling silt separation system, its structure includes machine body, be located in the water inlet end of machine body and be equipped with water jet pipe fittings, be installed in the filter screen of machine body inside near water inlet end, be installed in the filter material device between filter screen and water jet pipe fittings and be installed in the aggregate frame of both sides of machine body.Affirmative effect: the present application adopts the movement of movable filter material shaft in filter material device between special-shaped and straight rail frame, cooperates rotation drive, makes silt and water fully separate;The contact area of the outer surface of movable filter material shaft is increased, which is beneficial to silt adhesion separation, and improves separation efficiency together, when encountering larger stone, the interval between adjacent movable filter material shafts and rolling can be adjusted independently, which can move the stone to the inside of both sides of aggregate frame, prevent it from causing the jamming of components or other influences in subsequent separation process.
Owner:QUANZHOU SHISHI AOLI CONCRETE CO LTD