61 results about "Nylon filter" patented technology

The invention provides an electrochromic material as well as a preparation method and application thereof. The structural formula of the electrochromic material is as follows: # imgabs0 #, wherein AR1 is a group as shown in R1 or R3; aR2 is a group represented by R2 or R6; aR3 is selected from any one group represented by R3, R4 and R5; aR4 is a group represented by R2, n is the degree of polymerization, and n is 4-35. According to the invention, four high-performance electrochromic materials TTP, TEP, TPP and PBP3P which can be processed in a solution are prepared by adopting an arylation polycondensation process; the electrochromic material is used as a raw material, a high-performance patterned electrochromic camouflage device is prepared by means of mask spraying, and nylon filter membranes with different apertures are introduced into a device structure to adjust the transmittance of the device so as to achieve a better camouflage effect.

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 application discloses an amorphous metal organic framework film and a preparation method and application thereof. The metal organic framework film is prepared by the following method: carbon nanotubes are first deposited on a nylon filter film to obtain a carbon nanotube / nylon base, then a precursor solution for electrodepositing the metal organic framework film is prepared, and finally the amorphous metal organic framework film is prepared on the carbon nanotube / nylon base by an electrodeposition method. The application retains the local order of MOF materials, meanwhile, destroys the long-range order of the structure, and obtains a continuous and dense amorphous metal organic framework film. The film exhibits excellent performance in a hydrogen and methane separation test, and has a good application prospect.

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.

The utility model discloses a combined filter for a lithium battery liquid injection process and a rotary dehumidifier, and belongs to the technical field of air treatment equipment, the combined filter comprises a nylon filter screen and an acid removal filter screen, the air inlet end of the nylon filter screen is tightly attached to the air outlet end of the acid removal filter screen; the characteristics of excellent acid resistance, abundant fiber structures on the surface and the like of the nylon filter screen are fully utilized, so that acidic substances in air can be effectively intercepted under the condition of not causing relatively large air pressure loss; and the nylon filter screen is tightly attached to the deacidification filter screen, so that the intercepted acidic substances can further enter the deacidification filter screen to neutralize the corresponding acidic substances, and the purpose of deacidification of the air is achieved.

The present invention belongs to the technical field of flexible thermoelectric film preparation and relates to an n-type Ag2Se / Ti3C2T x A thermoelectric composite material, a preparation method thereof and application in preparing a flexible film. The thermoelectric composite material comprises Ag2Se and Ti3C2T x Composite obtained; Among them, Ti3C2T x The mass fraction of is 0.2%-1.5%. The present invention adopts a method for constructing an n-type inorganic material with a heterojunction structure, and enhances the power factor of the material by adjusting the electronic structure and the energy band structure, thereby improving the thermoelectric performance of the material. The Ag2Se / Ti3C2T prepared with nylon filter membrane as the substrate x The PF of the flexible thermoelectric film reached 1153.51 μW·m near room temperature. ‑1 ·K ‑2 The preparation method of the present invention is simple, the raw materials are easily available, the requirements for reaction equipment are low, the operation is simple, the conditions are mild, and the preparation efficiency is high.

The utility model provides a high interception rate nylon filter material, including a first nylon net, a second nylon net and a support layer, the support layer is fixedly connected to the second nylon net, the first nylon net and the second nylon net are compounded by pressing, the first nylon net includes radial monofilaments and axial monofilaments, the radial monofilaments and the axial monofilaments are woven perpendicularly to each other, the second nylon net includes a first filter ring and a second filter ring, the first filter ring and the second filter ring are interlocked in the same row. This solution arranges a second nylon net interlocked with the first filter ring and the second filter ring between the first nylon net and the support layer, so that larger particles remain on the side of the first nylon net away from the second nylon net, and smaller gel particles are retained in the first filter ring and the second filter ring, thereby achieving the purpose of improving the interception efficiency of the nylon filter material and preventing clogging.

The utility model provides an ultra-low resistance filtering device capable of being used for common plate air pipe connection, which comprises a box body and a high-efficiency filter, a fixing assembly is arranged on the inner wall of the lower part of the box body, the high-efficiency filter is fixed on the top of the box body through the fixing assembly, and a flange is arranged on the top of the high-efficiency filter. An air outlet is formed in the bottom of the box body, an integrally-formed frame body is installed at the air outlet, a plurality of semi-elliptical blades are arranged in the integrally-formed frame body, an adjusting mechanism used for replacing the filter screen is arranged in the integrally-formed frame body, lifting lugs are arranged on the two sides of the box body, and the lifting lugs are arranged on the two sides of the box body. And the box body is fixed on a ceiling through the lifting lugs. According to the device, the nylon filter screen can be replaced in a drawing and inserting mode through cooperation of the integrally-formed frame body and the nylon filter screen, installation is convenient, the nylon filter screen can be rapidly detached and replaced, the surface of the box body is treated through the electrostatic spraying technology, and the device has the advantages of being high in strength, resistant to corrosion, capable of insulating sound and reducing noise, long in service life and high in practicability.

A physical test method for finely screening fine-grained soil particles to nanoscale comprises the following steps: step 1, obtaining loess fine particles with the particle size of less than 0.075 mm through a dry screen, and completing earlier-stage treatment work of a soil sample; secondly, a traditional vibration screening machine is transformed, and the transformed vibration screening machine is used for conducting wet screening on the loess fine particles with the particle size smaller than 0.075 mm; 3, after-treatment of the soil body after wet screening: separately drying the soil particle grading groups after wet screening separation through an oven or a drying oven, weighing after grinding, recording and storing; and 4, obtaining a particle score curve of the fine-grained soil: drawing the particle score curve of the soil particle content of each grade on the logarithmic coordinate system so as to represent the distribution condition of the fine-grained soil in different particle group intervals. On the basis of a traditional sieve shaker, the advantages of a wet screening method are combined, the steel sieve of the traditional sieve shaker is modified through the nylon filter cloth, the steel bars and the rubber rings, and the purpose of accurately and directly separating fine soil particles is achieved.

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 application discloses a spice extraction device, which comprises a support frame, a hydraulic cylinder, a pressing disc, an upper hanging column, an upper through hole, a liquid storage barrel, a support seat, a guide pipe, a support basket, a guide hole, a support ring and a filtering part. The support frame is welded by steel plates. An upright hydraulic cylinder is fixed to the upper end of the support frame. The piston rod of the hydraulic cylinder penetrates the upper end of the support frame, and a horizontal pressing disc is fixed to the bottom end of the hydraulic cylinder. The application adopts a hydraulic driving mode. Compared with a traditional air pressure driving mode, the application can apply greater extrusion force to raw materials during the pressing process. The application is matched with a nylon filter screen which can stir the raw materials. The utilization rate of the raw materials is greatly improved, unnecessary waste is avoided, the nylon filter screen and the support frame which are convenient to assemble and disassemble are used, the feeding and discharging of the raw materials during the pressing process are more convenient and fast, the production efficiency is improved, and the troubles caused by cleaning filter residues are reduced.

The utility model discloses a simple breeding container for root mites, which comprises an outer container and an inner container, an isolation belt is arranged between the outer container and the inner container, the outer container comprises an outer container body and an outer container cover, a first magnet is arranged on the outer container body, and a nylon filter layer is arranged on the outer container cover; the inner container comprises an inner container body and an inner container base, and a second magnet is arranged on the inner container base. According to the feeding device for the root mites, the root mites are placed in the outer container, sealed by the outer container cover and then placed in the isolation belt in the inner container, and the root mites can be prevented from climbing out of the outer container under the action of the nylon filter layer on the outer container cover and the second magnet on the base of the inner container. Meanwhile, observation is facilitated, and therefore rapid observation and counting of the root mites are achieved.

The present invention relates to the technical field of peanut oil preparation, and discloses an efficient preparation method of high oleic peanut oil, comprising the following steps: step 1, selecting peanut varieties with high oleic acid content, screening peanuts, removing impurities, damaged and moldy peanuts, washing the screened peanuts, and then drying them under a low temperature dry environment to a water content of 5% to 8%, step 2, crushing the dried peanuts into 4-6 petals, then conveying the crushed peanuts downward, and fixing the opening after being received by a cylindrical squeezing bag made of nylon filter cloth, and then starting the transmission mechanism in the squeezing device to push the squeezing mechanism backward, and further squeezing bags fall between the blocking mechanism and the squeezing mechanism. By driving the squeezing mechanism to squeeze forward, the whole process is coherent and efficient, greatly reducing the operation time, and using the receiving mechanism to move the receiving plate forward, and the squeezing bag is squeezed and thinned and needs to be transferred when it is transferred, thereby improving the overall production efficiency.

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 utility model discloses an elevator air conditioner of an air purification device, which belongs to the technical field of elevator air conditioners and comprises an elevator air conditioner box body, a chassis is mounted at the bottom of the elevator air conditioner box body, and a condenser is mounted on one side of the top of the chassis. According to the utility model, the panel on the air purification assembly is arranged on one side of the elevator air conditioner box body, and a nylon filter, an activated carbon filter and an anion filter are arranged in the panel; the first-stage nylon filter adopts the characteristic treatment of dust filtration, paint mist adhesion, deodorization, harmful gas adsorption, noise reduction, water filtration, oil smoke filtration in a high-temperature environment and the like, and the second-stage activated carbon filter not only can improve the air quality and prevent pollution, but also has higher cost performance and wide applicability, and is suitable for popularization and application. And the third-stage anion filter has a relatively strong bactericidal effect and can inhibit bacteria, fungi and viruses, so that the air in the elevator is effectively purified.

The utility model relates to the technical field of environmental protection, and particularly discloses a white mud dehydration device. Comprising a machine shell and an extrusion dewatering mechanism arranged in the machine shell. The machine shell is supported through the machine frame. The extrusion dewatering mechanism comprises a charging barrel and a rotating shaft arranged in the charging barrel, and the rotating shaft is provided with a spiral body of which the outer diameter is gradually increased from one end to the other end; a material circulation cavity is formed between the spiral body and the interior of the charging barrel; a discharge port is formed in one end, connected with the charging barrel, of the shell, and a feed port is formed in the top of the other end of the charging barrel; a plurality of water leakage holes are formed in a machine body of the charging barrel; nylon filter cloth is also arranged in the charging barrel; the extrusion dewatering mechanism is driven by a driving device arranged on the rack and realizes extrusion dewatering operation; and the outer diameter of the spiral body is gradually increased from the direction of the discharge port to the direction of the feed port. Through the arrangement, the operation efficiency of the equipment is improved, the maintenance cost is reduced, and the whole production process is smoother and more efficient.

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 utility model discloses a novel precise filter cloth filtering rotary drum filter tank, which relates to the technical field of rotary drum filters, aims to solve the technical problems of short service life and high maintenance cost of filter meshes, and comprises a rotary drum machine shell, a driving shaft is rotatably connected to one side of the rotary drum machine shell, and a driving structure is arranged on the periphery of the driving shaft. One end of the driving shaft penetrates through the drum machine shell and is connected with a rotating frame, a plurality of filter screens are arranged on the peripheral area of the rotating frame, the filter screens are formed by weaving nylon materials, positioning structures fixed to the rotating frame are arranged on the peripheries of the filter screens, the positioning structures fix the filter screens, and a plurality of anti-deformation structures are arranged on the inner sides of the positioning structures. According to the utility model, the nylon filter screen is used for replacing a metal filter screen, the liquid inlet is necked down, and the pins at a plurality of positions and the filter screen are limited, so that the filter has the advantages of strong water permeability, firmness, durability, low improvement cost and lower maintenance cost, and meanwhile, the capacity of resisting deformation under high pressure is improved.

The invention discloses a pretreatment method of tetrahydrocannabinol in a cannabidiol raw material and a detection method thereof, and the method is characterized by comprising the following steps: placing a crushed CBD raw material sample in a centrifuge tube, adding an ammonium formate buffer solution, a mixed extracting solution formed by mixing acetonitrile and trichloromethane, and normal hexane, carrying out vortex mixing for 1-3 min, then carrying out horizontal oscillation for 20-40 min, and carrying out centrifugation to obtain a supernatant; the CBD raw material sample, the ammonium formate buffer solution, the mixed extracting solution and the n-hexane are mixed according to a mixing ratio of 0.2 g: 12.5 mL: 20mL: 10mL, the CBD raw material sample, the ammonium formate buffer solution, the mixed extracting solution and the n-hexane are frozen in a refrigerator at the temperature of-20 DEG C for more than 1 hour, middle-layer clear liquid is taken through centrifugation and filtered through a 0.2-micron nylon filter membrane to be subjected to UPLC-MS / MS analysis, and the CBD raw material sample, the ammonium formate buffer solution, the mixed extracting solution and the n-hexane are mixed according to a mixing ratio of 0.2 g: 12.5 mL: 20mL: 10mL.

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 relates to the field of nylon liquid filter bags, and discloses a nylon liquid filter bag convenient to clean, which comprises a nylon filter bag, a lantern ring is fixedly connected to the bottom end of the nylon filter bag, a rotating plate is rotatably connected to the inner wall of the lantern ring, and a filter frame is fixedly connected to the left end of the rotating plate. A limiting mechanism is arranged on the inner wall of the top end of the rotating plate, the outer wall of the rotating plate is movably connected with a rotating wheel, the outer wall of the lantern ring is fixedly connected with a placing ring, and the outer wall of the nylon filter bag is in contact with sleeve cloth. According to the utility model, the limiting plate is separated from the notch in the inner wall of the lantern ring by moving the rotating wheel, so that the filter frame does not shield the bottom end of the lantern ring any more, solid particles quickly fall down from the nylon filter bag and the bottom end of the lantern ring, the nylon filter bag does not need to be manually overturned and poured by a worker, and the device is simple and convenient in actual operation; and the cleaning efficiency of the nylon filter bag is improved to a certain extent.

The present invention provides a manufacturing device for a filter membrane for detecting Schistosoma haematobium eggs, belonging to the technical field of prevention and control of parasitic diseases. The manufacturing device for the filter membrane for detecting Schistosoma haematobium eggs is composed of a temperature control switch 1, a cylindrical blade 3, a heating device 2, a spring 6 and a depressible handle 4. Compared with the prior art, the device can bond the edges of a nylon filter screen into a whole circle, making the edges clear, and during use, it will not cause wire breakage or wire running due to the inability to fix the edges of the filter screen, resulting in uneven local pore sizes of the filter screen, thereby affecting the accuracy of filtering Schistosoma haematobium eggs.

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.

The invention relates to the technical field of surface hydration inhibition testing, and provides a drilling fluid surface hydration inhibition testing device and method.The device comprises a reaction tank, nylon filter cloth, a first fixing frame and a second fixing frame are arranged in the reaction tank, one end of the nylon filter cloth is detachably connected with the first fixing frame, and the other end of the nylon filter cloth is detachably connected with the second fixing frame; one end of the first fixing frame is detachably connected with the bottom of the reaction tank, the other end of the first fixing frame is detachably connected with the second fixing frame, the first fixing frame is detachably connected with the inner wall of the top of the reaction tank, and the second fixing frame is detachably connected with the inner wall of the bottom of the reaction tank. And the method is suitable for testing the surface hydration inhibition of various water-based drilling fluids, and provides powerful support for the development of a drilling fluid technology.