26 results about "Nylon filter" patented technology

The utility model provides an environment-friendly waterproof structure, and relates to the field of building waterproof structures. Two rows of top bolts symmetrically penetrate through the outer eaves of the left side and the right side of the flexible plastic waterproof pad, the flexible plastic waterproof pad is fixed to a roof through the two rows of top bolts, and a plurality of rows of planting grooves are formed in the top end of the flexible plastic waterproof pad at equal intervals; the planting groove is of a rectangular structure, the interior of the planting groove is filled with soil, and green plants and flower plants for greening and environmental protection are planted in the soil; a soil sealing plate is embedded in an opening in the top end of the planting groove in a sealing and covering mode, the whole soil sealing plate is of a U-shaped structure, two L-shaped clamping plates are symmetrically and downwards welded to the top ends of a left side plate and a right side plate of the soil sealing plate, and two soil filtering assemblies can intercept and filter residual and mingled soil in overflowing water through nylon filtering wires evenly and densely distributed on the two soil filtering assemblies; the soil content in the rainwater is further reduced, and the probability that a roof drainage system is blocked and the water and soil loss of soil in the planting groove are further reduced.

The utility model provides a grading screen for breeding macrobrachium rosenbergii larvae, which comprises a base, an arch-shaped mounting frame is fixedly mounted at the top of the base, a grading screening mechanism for the macrobrachium rosenbergii larvae is arranged on the inner side of the arch-shaped mounting frame, a water collecting tank is fixedly mounted at the top of the base, and a collecting tank is arranged at the top of the water collecting tank. And the macrobrachium rosenbergii larva grading screening mechanism comprises three screening grooves which are vertically placed, nylon filter screens are fixedly installed at the bottoms of the screening grooves, inserting grooves are formed in the right sides of the screening grooves, baffles are arranged in the inserting grooves in a penetrating and inserting mode, and two circular connecting rings are fixedly installed on the inner side of an arch-shaped installation frame. The base is arranged to achieve installation of the water collecting tank, the water collecting tank is arranged to collect and discharge water, and the macrobrachium rosenbergii larva grading screening mechanism is arranged to achieve grading filtering of macrobrachium rosenbergii larva. Further, larvae of macrobrachium rosenbergii with different sizes are separated, so that the survival rate during subsequent culture can be increased.

This invention relates to a gas separation membrane for N2 / CH4 using a dual-selectivity mechanism and its preparation method. Chromium nitrate nonahydrate, an organic acid, acetylacetone, ethyl acetate, and acetone are mixed and dissolved to obtain a dark green solution. The dark green solution is poured into sufficient diethyl ether to precipitate the precipitate, which is then dried in a vacuum oven to obtain chromium cluster powder. An MXene colloidal solution is lyophilized to obtain MXene sheet material. Deionized water and chromium cluster powder are mixed to form solution A. The MXene sheet material is added to solution A to obtain mixture B. Mixture B is deposited onto nylon filter paper using vacuum filtration to form a gas separation membrane, which is then placed in a vacuum oven to activate the chromium clusters. A Cr-MXene gas separation membrane rich in Cr clusters between MXene sheets is prepared. The prepared membrane possesses both diffusion-selectivity and reaction-selectivity mechanisms, enabling efficient separation of the N2 / CH4 system.

The utility model relates to the field of fuel cells, and discloses a novel hydrogen fuel cell deionizer which comprises a barrel, end covers are arranged at two ends of the barrel, mixed bed resin is filled in a cavity of the barrel, a liquid inlet and a liquid outlet are respectively arranged on the two end covers, a composite nylon filter screen is arranged in each end cover, and the composite nylon filter screen is provided with a double-layer filter screen structure. The inner side filter screen is high in strength and small in mesh number, the outer side filter screen is low in strength and large in mesh number, a liquid inlet cavity, a transition cavity and a discharge cavity are sequentially formed in the end cover, the cavity bodies of the liquid inlet cavity, the transition cavity and the discharge cavity are sequentially enlarged, the liquid inlet cavity is formed in the liquid inlet / liquid outlet, the discharge cavity is communicated with the cavity of the barrel, and the composite nylon filter screen is arranged in the discharge cavity. According to the deionizer, brand new flow channel design is adopted, flow resistance and exchange capacity are balanced, meanwhile, the composite nylon filter screen without ion precipitation is adopted, the service life of the deionizer is further prolonged, and long-term stable work in a high-temperature environment is guaranteed.

The utility model provides a chromatographic device. The chromatographic device comprises a chromatographic column and a receiving bottle, the number of sections of the chromatographic column is at least two; every two sections of the chromatographic column are fixed by a three-section hoop; a filter membrane is arranged between the receiving head of the receiving bottle and the chromatographic column; the filter membrane comprises a nylon filter membrane with the pore diameter of 0.1-1 mu m, a PTFE filter membrane with the pore diameter of 0.1-1 mu m or a UPE filter membrane with the pore diameter of 0.1-1 mu m. According to the utility model, the filter membrane is arranged between the receiving head of the receiving bottle and the chromatographic column, so that mechanical impurities and organic polymers in a mixture to be separated can be well removed, and the impurities are prevented from polluting a target object; the chromatography device can be used for positive-pressure column chromatography, negative-pressure column chromatography or normal-pressure column chromatography, is wide in application range and has wide-range popularization and application prospects.

The utility model relates to the technical field of seawater sampling, in particular to a surface seawater sampler which comprises a floating platform frame body, a wind-up roller is fixedly mounted on the floating platform frame body, a rope is mounted on the wind-up roller, a filtering and sampling structure is arranged on the rope, and the floating platform frame body is fixedly connected with the wind-up roller. The filtering and sampling structure comprises a cover body fixedly mounted at one end of the rope, a barrel is arranged below the cover body, a suction pump is fixedly mounted at the top of the cover body, a fixing frame is fixedly mounted on the suction pump, a filtering frame is arranged on the fixing frame, and a sampling device is arranged on the filtering frame. A glass fiber filter membrane, a polycarbonate filter membrane and a nylon filter membrane are sequentially arranged in the filter frame from top to bottom. Through the arrangement of the filtering and sampling structure, floating objects and plankton can be intercepted and filtered in the process of sampling surface seawater, and the floating objects and plankton are prevented from causing blockage and affecting the quality of seawater detection after filtration.

The utility model provides a bubble cleaning machine capable of filtering circulating water, which relates to the technical field of bubble cleaning machines and comprises a support frame, a cleaning pool is fixedly mounted on the surface of the support frame, a conveying mesh belt is fixedly mounted on the surface of the cleaning pool, and a water sprayer is fixedly mounted on the surface of the conveying mesh belt. Large impurities can be effectively intercepted through the arranged filter basket and prevented from entering the filter box, the burden of a subsequent filter layer is relieved, fine sand and mud particles can be further removed through the arranged nylon filter layer, and primary purification of water is ensured; through the arrangement of the motor and the stirring rod, the non-woven fabric filter bag can rotate in the filter box, a dynamic filtering effect is formed, impurities are effectively intercepted and gathered by the non-woven fabric filter bag, concentrated cleaning is facilitated, and finally through the deep purification effect of the activated carbon filter frame, the water quality is further improved, and the water recycling period is prolonged.

The utility model relates to the technical field of pectin extraction, in particular to a reaction kettle for efficiently extracting pectin, which comprises a shell, a controller and a reaction kettle body, the controller is fixedly mounted at the front end of the outer wall of the shell, and a pectin conveying control structure is arranged at the lower end of the reaction kettle body. A pectin discharging and efficient filtering extraction structure is arranged at the lower end of one side of the shell. According to the reaction kettle for efficiently extracting the pectin, a prepared hot pectin product is poured above the hung nylon filter cloth through the drainage pipe, so that the gravity for discharging the pectin can press the nylon filter cloth downwards to be in an inverted arch shape, impurities can be left above the nylon filter cloth, downward pressure is applied to the pectin product through the air cylinder, and the pectin filtering process is accelerated; the mechanical device accelerates pectin filtration without direct contact of hands with high-temperature pectin, and mechanical driving force can more quickly promote the pectin to complete a filtration process, so that the pectin extraction efficiency of the reaction kettle for efficiently extracting pectin is improved.

The utility model discloses compact water curtain fresh air equipment, which is applied to the field of fresh air equipment and comprises a shell, a frame is bolted between the inner walls of the shell, evaporation wet films are sequentially bolted between the inner walls of the frame from inside to outside, a fan is fixedly sleeved on the top of the shell, and a water tank is bolted between the frame and the inner walls of the shell. The V-shaped compact layout design is adopted, the two side plates are arranged in a mutually inclined mode, compared with a traditional vertical columnar layout, the occupied area of equipment is greatly reduced, installation requirements of places such as machine rooms with limited spaces can be met, meanwhile, the heat exchange area is increased, the sliding rods drive the trapezoidal grooves to move by pressing the pressing blocks, and the heat exchange efficiency is improved. During maintenance, the trapezoidal grooves move to enable the steel balls to be separated from the fixing grooves, the fixing pins are taken down, and then the outer frame, the nylon filter screen, the primary filter screen and the intermediate filter screen are sequentially taken out for maintenance, so that the maintenance amount is reduced, and the maintenance efficiency is improved.

The invention discloses a method for correcting a densimeter method by using a nylon filter cloth wet screen analysis method, and relates to the technical field of particle analysis in soil mass engineering properties. And for the fine-particle soil body with the particle size smaller than 0.075 mm, based on the particle size division standard of the wet screen analysis method, synchronous adjustment of the particle size of the densimeter method is achieved by adopting an interpolation method, and verification is conducted. The principle is clear, the calculation process is completely programmed, more accurate gradation is obtained, the repeatability is high, the stability is high, and the reliability is high; the defects of time consumption, labor consumption, high cost and the like caused by comprehensive popularization of a wet screen analysis method are avoided, the advantages of simplicity and convenience in operation and good continuity of a densimeter method are reserved, and meanwhile, the precision of fine-grained soil particle analysis is improved; densimeter method system errors caused by Stokes law hypothesis, temperature influence, reading errors and other factors are effectively optimized, so that the finally obtained grain composition curve is closer to the real distribution of soil samples, and the problem of low data accuracy of the densimeter method, which puzzles engineering practice for a long time, is solved.

The invention discloses a modular structure for a deep foundation pit recharge well and a construction method, and relates to the technical field of building construction, the modular structure comprises a bottom inverted filter cylinder, a standardized well casing, a prefabricated filter unit and a top cover plate, all the parts are modular structures prefabricated in a factory, and the complete recharge well is assembled in a detachable connection mode; the bottom inverted filter cylinder is filled with a graded broken stone inverted filter layer, the prefabricated filter unit comprises a steel reinforcement cage and a nylon filter screen wrapping the steel reinforcement cage, and plum blossom-shaped open holes are formed in the bottom and the side wall of the standardized well casing. Modular design and factory prefabrication production are adopted, all parts are uniform in specification and good in adaptability, rapid splicing is achieved on site in an internal and external thread screwing mode, the tedious on-site machining and step-by-step feeding procedures of a traditional recharge well are greatly simplified, intensive manual operation is reduced, the construction period is shortened, and the construction efficiency is improved. And efficient construction requirements of modern engineering are met.

The utility model discloses a nylon filter bag and relates to the technical field of nylon filter bags. The nylon filter bag comprises a filtering and cleaning outer barrel, a nylon filter bag body and a cleaning device, the nylon filter bag body is fixedly installed outside the filtering and cleaning outer barrel, the cleaning device is fixedly connected with the filtering and cleaning outer barrel, and a uniform stirring and filtering assembly is fixedly installed outside the nylon filter bag body. The nylon filter bag can be used for uniformly filtering and improving the filtering efficiency through rotation of a stirring baffle during filtering, a filter bag cleaning assembly is arranged, the interior of a filtering and cleaning outer barrel is sealed, clear water is guided out of a water outlet hole from a first embedded sliding block, and a nylon filter bag body can be washed; clear water is guided out of the water outlet hole from the first embedded sliding block through the flushing assembly for flushing, solid particles and impurities on the filter bag can be effectively removed, and the original filtering effect of the filter bag is recovered.

This invention provides an electrochromic material, its preparation method, and its application. The structural formula of the electrochromic material is shown below: AR1 is a group represented by R1 or R3; AR2 is a group represented by R2 or R6; AR3 is selected from any one of R3, R4, and R5; AR4 is a group represented by R2; n is the degree of polymerization, and n is 4–35. This invention uses an arylation polycondensation process to prepare four high-performance solution-processable electrochromic materials: TTP, TEP, TPP, and PBP3P. Using these electrochromic materials as raw materials, high-performance patterned electrochromic camouflage devices are prepared using mask spraying. Nylon filter membranes with different pore sizes are introduced into the device structure to adjust the device's transmittance and achieve better camouflage effects.

The utility model relates to the technical field of filter tanks, and discloses a filter tank for filtering steam condensate water, which comprises a filter tank body, a settling zone, a filter zone and an adsorption zone. According to the filter tank for filtering steam condensate water, the stepped baffle plate arranged in the filter tank body is matched with the flow guide groove, three-stage sedimentation of scale particles is achieved, the sedimentation effect is improved, the linkage design of the conveying auger and the guide table achieves the effect of conveniently discharging scale, and the filter tank is convenient to use. The micro submersible pump conveys clear water on the upper layer of the settling area to the filtering area through the liquid conveying pipe, sediment disturbance is avoided, the particle removal rate is improved by combining double-layer interception of the stainless steel punched plate and the nylon filter cloth, and when water submerges the nylon filter cloth and is higher than the overflow plate, the water naturally flows into the adsorption area to be subjected to adsorption treatment, and the water quality is improved. The adsorption area is composed of a coarse-hole activated carbon layer, an ion exchange resin layer and a quartz sand layer, organic matter, metal ions and particles are synchronously removed, and the hardness of discharged water is reduced.

The invention relates to the field of mold manufacturing, and discloses a mold for seawater purification filter screen production, the mold comprises an upper mold base and a lower mold base, the upper end of the lower mold base is fixedly connected with a guide column for the upper mold base to slide, the upper end of the lower mold base is fixedly connected with a mold table, the lower end of the upper mold base is provided with a mold cavity, and the inner wall of the mold cavity is provided with a mold channel; an injection molding auxiliary assembly used for reducing the wrinkling probability of the nylon filter screen during injection molding and facilitating rapid sleeving and demolding treatment of the nylon filter screen is arranged in the lower mold base. The injection molding auxiliary assembly comprises an opening formed in the surface of the mold table, a silicon rubber bag is fixedly connected into the mold table, a water inlet pipe is fixedly connected into the lower mold base, and a drainage valve is fixedly connected to the upper portion of the lower mold base. The nylon filter screen can be supported from the inner side after the silicone rubber bag body is expanded, so that the nylon filter screen is in a tight state, and the situation that after injection molding, wrinkles appear between the nylon filter screen and an injection molding part, and consequently adhesion is not firm is avoided.

The utility model discloses a sheep slaughtering and processing device which comprises a cleaning table, mounting columns are mounted on the periphery of the bottom of the cleaning table, a supporting plate is mounted at the bottoms of the inner sides of the mounting columns, a filtering box is mounted at the top of the supporting plate, and water guide pipes are communicated with the two sides of the top of the filtering box. The top of the water guide pipe penetrates through an inner cavity of the cleaning table. The cleaning device has the advantages that waste water generated during cleaning enters the cleaning table through the filter screen opening, the waste water is conveyed into the filter box through the water guide pipe in the cleaning table, and the waste water is filtered through the high-density stainless steel filter screen plate and the nylon filter screen plate on the two sides of the inner cavity of the filter box; according to the sewage treatment device, impurities such as suspended solids and particulate matters in the sewage can be effectively intercepted, and the nylon filter screen plate can effectively remove the impurities such as suspended solids and particulate matters in the sewage due to high wear resistance, corrosion resistance and good filtering performance, so that the clarity of effluent water is ensured.

The invention discloses a mining plugging gas wall with gas adsorption and rapid gas leakage functions, and belongs to the technical field of mine gas disaster prevention and control. Comprising a gas wall body, a gas adsorption device and a quick tightening mechanism. The gas adsorption device is arranged on the side, facing the coal mine working face corner, of the gas wall body and structurally comprises a water removal layer, a dust removal layer, a drying layer and an adsorption layer in sequence from outside to inside. The water removal layer is a stainless steel vapor-gas-liquid filter screen, the dust removal layer is a nylon filter screen, the drying layer is an allochroic silicagel drying agent, and a novel gas adsorption material is filled in the adsorption layer and is used for efficiently adsorbing gas; and the quick tightening mechanism is arranged on the other side of the air wall body and comprises a large-diameter air inflation hole, a plurality of small-diameter air leakage holes which are uniformly distributed and a set of knot mechanism connected by a Peru knot, and the air wall liner can be quickly tightened by pulling the knot, so that quick air leakage is realized.

The utility model discloses a kind of dissolving liquid filtering devices for gold refining, it is related to gold refining technical field, including shell, metal filter screen and nylon filter screen;Shell: inside fixed with collecting vessel, the bottom surface of the collecting vessel is fixed with liquid outlet pipe, the outside of the liquid outlet pipe is equipped with intelligent solenoid valve, the rear side of the shell inside is sequentially provided with first filter frame and second filter frame from top to bottom, the metal filter screen passes through the through slot of shell top surface and the inside of first filter frame corresponding plug-in, the nylon filter screen passes through the through slot of shell top surface and the inside of second filter frame corresponding plug-in, the dissolving liquid filtering device for gold refining, by the double-stage filtration of metal filter screen and nylon filter screen to improve filtering precision and efficiency, while motor-driven scraper and electromagnetic adsorption can efficiently remove filter screen impurities and classify waste recovery, reduce manual intervention and downtime, make device applicable to high-purity gold refining process.

This invention discloses a "tea bag" type instant Trichoderma agent, its usage method, and application. It includes: an inner packaging, which is a nylon filter bag with a porosity of 50-70 mesh and dimensions of 7cm×7cm to 9cm×9cm; an outer packaging, which is a heat-sealed tea filter paper bag with dimensions of 11cm×11cm to 13cm×13cm; and Trichoderma bio-organic fertilizer filled in the inner packaging, with a filling amount of 25-35g and a Trichoderma spore content ≥1×10⁻⁶. 8 cfu / g. The Trichoderma spore liquid prepared by this invention has a significant effect on promoting growth and increasing yield of cucumbers. The product size and fertilizer content can be changed according to specific conditions, and it can be applied as a fertilizer to adapt to diverse modern agricultural production methods.

This utility model discloses a novel basalt fiber dust collector bag in the field of dust collector bag technology. It includes a filter bag body with an internal filtration cavity. The filter bag body comprises a base fabric, with a basalt fiber filter layer fixedly connected to the inner wall of the base fabric. A support layer is fixedly connected to the inner wall of the basalt fiber filter layer, and a nylon filter layer is disposed on the inner wall of the support layer. Through this multi-layer composite filtration structure (including a basalt fiber filter layer, a nylon filter layer, a polypropylene filter layer, and a polyester filter layer), it can effectively intercept dust particles of different sizes, improving overall filtration efficiency. The introduction of basalt fiber significantly improves the high-temperature resistance and corrosion resistance of the dust collector bag, enabling it to operate stably for a long time under harsh working conditions and extending its service life. The design of the support layer and the support cavity, as well as the setting of the support columns, effectively enhance the structural strength of the dust collector bag, preventing deformation or damage under high pressure differentials.

The utility model discloses a granular material cleaning device which comprises a cleaning basket body, a handle, a bottom support, a cleaning pool, a rotor and a drainage pipe. The upper end of the cleaning basket main body is connected with the lifting handle, the lower end of the cleaning basket main body is connected with the bottom support and arranged in the cleaning pool, the rotor is arranged at the bottom of the cleaning pool, and the lower end face of the cleaning pool is connected with the drainage pipe. The cleaning basket body is composed of a screen. And a plurality of nylon filter screens are arranged in the cleaning basket main body and are used for sub-packaging different materials. The cleaning basket body is cylindrical, and a taking opening is formed in the side edge of the cleaning basket body. The cleaning basket body is made of 316L stainless steel materials. And cleaning liquid is injected into the cleaning pool. The distance between the lower end face of the cleaning basket body and the rotor is 5 cm. The number of the drainage pipes can be multiple. The particle material cleaning device aims to overcome the existing defects, and is simple in structure and high in adaptability.

The utility model relates to the technical field of ion exchange backwashing resin collection, and discloses a resin collection device for backwashing of an ion exchanger, which comprises a cross-shaped water distributor and a branch pipe mounted on the outer surface of the lower end of the cross-shaped water distributor, and a connecting component is mounted at the lower end of a mounting component and on the outer surface of the branch pipe. A collecting component is mounted at the lower end of the connecting component and at the bottom end of the branch pipe, the collecting component comprises an external pipe and a nylon filter screen B mounted at one end of the interior of the external pipe, and the nylon filter screen A and the nylon filter screen B are used for blocking broken resin and collecting the broken resin. The nylon filter screen A and the nylon filter screen B are made of nylon materials, and nylon has good toughness and corrosion resistance and can bear repeated impact of water flow in the water inlet direction and the water outlet direction without being damaged, so that the resin collecting effect of the structure is kept.

The utility model relates to the technical field of sewage treatment, in particular to sludge reduction sewage treatment equipment which comprises a shell, the bottom end of the shell is fixedly connected with a guide shell, the bottom end of the guide shell is fixedly connected with a bottom plate, and the bottom end of the bottom plate is fixedly connected with a first motor; the output end of the first motor is fixedly connected with a first rotating shaft penetrating through the bottom plate, the outer side of the first rotating shaft is fixedly connected with a stirring plate located on the inner side of the guide shell, the bottom end of the bottom plate is communicated with a drainage pipe located on the outer side of the first motor, and the interior of the drainage pipe is fixedly connected with a stainless steel wedge-shaped net. The sewage pump can accelerate sewage and sludge to enter the drainage pipe, the cement separation effect is achieved through the stainless steel wedge-shaped net, the sludge is discharged through the auger, redundant water in the sludge can be discharged through the nylon filter net, the efficient sewage and sludge separation effect is achieved through the components, and the sludge in the sewage is removed more efficiently.

The utility model discloses an air curtain dust collection and removal device for safety engineering, which comprises an equipment main shell, the bottom of the equipment main shell is fixedly connected with an air collection cover, the top of the equipment main shell is fixedly connected with a top cover cap, and two sides of the top end of the top cover cap are respectively provided with a centrifugal fan. And a filter screen structure convenient to replace is arranged at the front end of the equipment main shell. According to the air curtain dust collecting and removing device for safety engineering, by arranging the side edge guide frame, the front end sealing plate, the handles, the hand-screwing bolts, the nylon filter screen, the fixing angle iron and the internal thread pipe base, when the air curtain dust collecting and removing device is used, the four hand-screwing bolts are unscrewed and pulled out, and after the hand-screwing bolts are separated from the internal thread pipe base on the fixing angle iron, the two handles on the front end sealing plate are grasped and pulled outwards; the front end sealing plate and the nylon filter screen can be synchronously pulled out, the side edge guide frame can support the nylon filter screen, the function of conveniently replacing the filter screen is achieved, and the problem that the device does not have the function of conveniently replacing the filter screen is solved.