263results about How to "Effective interception" patented technology

This invention relates to the field of pulverized coal conveying and dust removal technology, specifically to a pulverized coal dust removal method, comprising: S1: Constructing a dust removal system: setting up a dust cover on a conveyor belt, setting up a pressure-reducing chamber on the dust cover, installing wear-resistant baffles at the bottom of the dust cover, and installing a dust curtain inside the dust cover; installing a dust collector at the top of the dust cover; S2: Coal conveying and primary dust removal: starting the conveyor belt to transport coal, the coal falls onto the conveyor belt, and the generated dust-laden gas forms a local high-pressure zone under the obstruction of the dust curtain, causing a portion of the dust-laden gas to undergo primary filtration through the filter components on the pressure-reducing chamber; S3: Secondary dust removal: the remaining dust-laden gas in the dust cover is sucked into the dust collector, the dust-laden gas enters below the liquid surface of the dust collector, causing the pulverized coal particles to settle and form coal slurry, which is then transported outside the dust collector, and the purified gas is discharged through the outlet. This method achieves closed-loop control of the entire process from source dust suppression to end-of-pipe treatment through two-stage synergistic dust removal, improving the dust removal effect.

The utility model relates to the technical field of chemical reagent experiments, in particular to a flask with an explosion-proof function, which comprises a safety plug, the bottom end of the safety plug vertically penetrates through an opening at the top end of a thin bottle neck, a ball bottle body is arranged at the bottom end of the thin bottle neck, and a pressure relief through pipe is arranged on the outer wall of one side of the ball bottle body. And a pressure relief valve obliquely penetrates through the interior of the pressure relief through pipe, one side of the outer portion of the ball bottle body is sleeved with a first protective net sleeve, and one side of the first protective net sleeve is connected with a second protective net sleeve in an adsorption mode. According to the improved flask and the safety plug, automatic pressure adjustment is achieved, a controllable pressure relief channel is formed, the sealing performance and the safety are balanced, the relative positions of the pressure relief valve and the pressure relief hole are changed, high-pressure gas can be conveniently diffused and discharged in a fan shape through the pressure relief hole, the impact force and danger of gas injection are reduced, meanwhile, the pressure relief valve has a reset mechanism, and the safety performance is improved. The first protective net sleeve and the second protective net sleeve can effectively intercept large glass fragments generated when the bottle body is broken, and the large glass fragments are prevented from splashing to hurt people.

The utility model relates to an anti-ice-falling device for the surface of a cross tie beam of a bridge tower, which comprises a plurality of anti-ice-falling devices arranged on the surface of the cross tie beam, each anti-ice-falling device comprises an anti-ice-falling clamp, a plurality of raised fixing pieces and a plurality of extended connecting pieces, and the anti-ice-falling clamps comprise a first anti-ice-falling clamp and a second anti-ice-falling clamp. The first anti-ice-falling clamp and the second anti-ice-falling clamp are fixedly arranged on the edges of the left side and the right side of the cross tie beam respectively, and the first anti-ice-falling clamp and the second anti-ice-falling clamp are connected into a whole through the extending connecting pieces and the protruding fixing pieces and fixed to the upper surface of the cross tie beam. The limiting baffles arranged at certain intervals prevent solid accumulated ice from sliding on the upper surface of the bridge tower cross tie beam, meanwhile, lateral drainage of the upper surface of the cross tie beam cannot be hindered, the phenomenon that a traditional drainage channel becomes a'water blocking channel 'due to icing is avoided, and the size of a single block of ice accumulated on the upper surface of the cross tie beam is limited within a safety threshold value as much as possible.

The utility model discloses a wheat-steeping ventilation overflow wheat-water separation water-saving device, which relates to the technical field of beer manufacturing equipment and comprises a wheat-steeping tank body, a separation component and a blanking groove body, a protection plate is arranged on the wheat steeping tank body, connecting frames are arranged on the inner wall of the protection plate, the connecting frames are evenly distributed in the circumferential direction with the protection plate as the circle center, the number of the connecting frames is multiple sets, and mounting rings are arranged between the multiple sets of connecting frames; the separation assembly is arranged on the barley steeping tank body and is used for separating barley from barley water in a use state; and the blanking groove body is arranged on the wheat steeping tank body. According to the utility model, the separation assembly is arranged, so that solid particles such as barley can be effectively intercepted in the barley steeping tank body in the overflow process and are prevented from flowing out along with water, more thorough wheat-water separation can be realized, and the separation efficiency is improved; and fluid dynamic characteristics in the wheat steeping tank body can be optimized, so that water flow is smoother, and meanwhile, the possibility that wheat is brought out by the water flow is reduced.

This invention relates to the field of fine chemical technology, specifically disclosing a production process for electronic-grade diethyl carbonate. The method includes the following steps: ethylene carbonate and anhydrous ethanol undergo a transesterification reaction in a microwave reactor catalyzed by a composite catalyst; the reaction solution is then subjected to phase separation treatment, followed by a continuous separation process coupling atmospheric and vacuum distillation to obtain an intermediate; further purification is achieved by molecular sieve adsorption to remove metal impurities and moisture, combined with precision filtration using a polytetrafluoroethylene membrane. The composite catalyst significantly improves the transesterification reaction efficiency and product selectivity. This process, through the synergistic effect of reaction process enhancement and multi-stage purification technology, achieves highly efficient removal of moisture, metal impurities, and nanoscale particles from the reaction system. The resulting electronic-grade diethyl carbonate meets the stringent requirements of high-end electronic chemicals such as lithium battery electrolytes, and possesses technical advantages such as short reaction cycle, thorough impurity removal, and high product purity.

The utility model relates to the technical field of oil extraction, in particular to an efficient temporary plugging anti-overflow device. Comprising an upper connector, the upper connector is fixedly and hermetically connected with a valve connector, the lower end of the valve connector is fixedly and hermetically connected with a filter pipe and an outer cylinder, the filter pipe is located on the inner side of the outer cylinder, the valve connector is provided with an air hole communicated with an annular cavity between the outer cylinder and the filter pipe, and a check valve is installed in the air hole; the lower end of the filter pipe is fixedly and hermetically connected with a lower pipe located inside the outer cylinder, the lower end of the lower pipe is blocked and fixedly connected with the lower end of the outer cylinder through a lower connector, and a temporary blocking plate is detachably, fixedly and hermetically connected into the lower connector. Through soluble temporary plugging, multi-stage filtering, gas-liquid separation and modular sealing design, the device has the core advantages of efficient overflow prevention, rapid production, airlock prevention, low maintenance cost and the like, has both environmental protection property and economical efficiency, and is suitable for oil well operation under complex working conditions.

This utility model provides a welding fume purification and collection device for metal products. The device includes a housing, a filter assembly, a pipe body, an air inlet hood, and a pre-filtration mechanism. The filter assembly, housed within the housing, includes a fan, a filter element, and a telescopic pipe. The fan's input end is connected to the filter element, and the other end of the filter element is connected to the telescopic pipe, which communicates with the pipe body. The pre-filtration mechanism is located within the telescopic pipe. This device relates to the field of welding fume treatment. By incorporating a pre-filtration mechanism within the telescopic pipe, this utility model effectively filters and intercepts large-sized impurities carried in the welding fume before it enters the filter element, preventing these impurities from directly entering the filter element. This significantly reduces the risk of filter element clogging and damage, extends the filter element's service life, and reduces maintenance and replacement costs.

The utility model belongs to the technical field of waste heat utilization equipment, and particularly relates to a waste heat boiler which comprises a waste heat boiler body and supporting legs, a waste heat recovery structure is arranged above the waste heat boiler body and comprises a filtering mechanism and a recovery mechanism, and the filtering mechanism comprises a supporting plate, a gas guide pipe, an installation plate, a fixing plate and a rotating rod. The top of the supporting plate is connected with the bottom of the recycling box, one end of the waste heat boiler communicates with one end of the gas guide pipe, and the two ends of the mounting plate are connected with the inner wall of the recycling box. According to the waste heat boiler, after flue gas enters the recycling bin, the flow speed is reduced, the retention time is prolonged, the filter screen can effectively intercept solid impurities in the flue gas, pollutant emission is reduced, environmental pollution is avoided, impurities accumulated on the surface of the filter screen can be automatically removed, blocking is prevented, and the filtering efficiency is maintained; and meanwhile, the filter screen can be quickly and conveniently disassembled and assembled, and the working efficiency of the waste heat boiler is improved.

The utility model relates to the technical field of radish irrigation devices, in particular to an energy-saving irrigation device for radish planting, which comprises a storage box, a water inlet pipe is fixedly mounted at the top of a front side plate of the storage box, a threaded pipe is mounted at the water outlet end of the water inlet pipe, and a threaded sleeve is in threaded connection with the threaded pipe. A filter mesh bag is fixedly mounted at the bottom end of the threaded sleeve; a conveying pump is arranged outside the storage box, a conveying pipe is fixedly installed at the water outlet end of the conveying pump, a plurality of evenly-distributed pipes are detachably connected to the conveying pipe, a plurality of water dripping holes are formed in the evenly-distributed pipes, a hard pipe is fixedly installed at the water inlet end of the conveying pump, and the tail end of the hard pipe penetrates into the storage box and is fixedly provided with a hose. A threaded connector is fixedly installed at the tail end of the hose, a mesh cylinder is detachably connected to the end of the threaded connector, a filter screen is arranged on the outer surface of the mesh cylinder, and a hollow floating plate is fixedly installed on the top face of the mesh cylinder. The drip irrigation device is convenient for drip irrigation operation and has a better impurity filtering effect.

The invention provides a Yankee drying cylinder system with multi-stage heat energy recovery and automatic temperature control, which relates to the technical field of heat energy recovery and comprises a multi-stage heat energy recovery unit, a steam mixing and adjusting unit and an intelligent temperature control center, the multi-stage heat energy recovery unit is used for recovering sensible heat of tail gas discharged by a Yankee drying cylinder, heat dissipation of a cylinder body and latent heat of condensate water and converting the sensible heat, the heat dissipation and the latent heat into available low-pressure steam; by arranging the first-stage tail gas recovery assembly, the second-stage cylinder body heat dissipation recovery assembly and the third-stage condensate water recovery assembly which are sequentially connected, sensible heat of tail gas discharged by the Yankee dryer, heat dissipation of the cylinder body and latent heat of condensate water can be comprehensively captured, and energy waste caused by direct discharge of waste heat in a traditional system is avoided; recycled heat energy is converted into low-pressure steam, then the low-pressure steam is stored in the low-pressure steam buffer tank and serves as a recycled steam source to be mixed with main steam to be introduced into the Yankee drying cylinder again, part of main steam consumption is effectively replaced, the input amount of external main steam is greatly reduced, and the industrial development trend of energy conservation and consumption reduction is met.

The utility model discloses an interception type trash holding structure for river regulation, and belongs to the technical field of river regulation, the technical scheme is that the interception type trash holding structure comprises a trash holding net, and a floating lifting assembly is arranged on the outer side of the trash holding net. The floating blocks on the two sides can enable the trash holding net to automatically adjust the height along with rising and falling of the water level by means of buoyancy, when the water level rises, the floating blocks drive the trash holding net to move upwards, garbage is prevented from crossing over the trash holding net, it is ensured that pollutants can be effectively intercepted all the time, and when the water level falls, the trash holding net also falls along with the trash holding net to continuously play an interception role. The connecting rods on the inner sides of the floating blocks are stably connected with the trash holding net, meanwhile, the floating blocks on the two sides of the trash holding net float more stably, pulleys in the guide grooves are matched with the guide rails, the trash holding net can be guided to ascend and descend stably, friction is reduced, the stability of the whole structure is enhanced, and the stability of the guide rails is improved through the balancing weight at the bottom. Therefore, the stability of the trash holding net in water is ensured.

The invention belongs to the technical field of shield slurry treatment equipment, and particularly provides a shield construction slurry treatment device and method. The stirring assembly is rotationally arranged in the stirring box, and a power part is fixedly arranged on one side of the stirring box; the filtering assembly comprises a filtering cylinder, the filtering cylinder is arranged on the outer side of the stirring assembly in a sleeving mode, openings in the two ends of the filtering cylinder are rotationally connected with the two sides, in the length direction, of the stirring box correspondingly, and the two ends of the stirring box are provided with a feeding port and a discharging port which are communicated with the interior of the filtering assembly correspondingly; one end of the stirring rod penetrates through the side wall of the stirring box and the opening of the filter cartridge and then extends into the stirring space. The filter cartridge is arranged to be matched with the stirring assembly, large-particle impurities in raw materials can be effectively intercepted while the raw materials are fully stirred, the large-particle impurities are prevented from scratching a sealing system of a shield tunneling machine or blocking a slurry circulating pipeline, and meanwhile the problems that a cutter head of the shield tunneling machine is blocked or a slurry discharging pipeline is abraded are solved.

This utility model discloses a low-resistance, high-efficiency air filter, belonging to the technical field of filtration equipment. It includes a mounting box and a blower. The blower is housed within the mounting box, and an air outlet pipe is located at the top of the mounting box, connecting to the outlet end of the blower. An air inlet box is fixedly connected to the back of the mounting box, with an air inlet pipe connected to its upper end. An exhaust pipe is fixedly connected to the lower end of the air inlet box, connecting to the inlet end of the blower. Several slots are provided on the back of the air inlet box, each containing a filter frame. This utility model improves maintenance efficiency and makes the device more convenient to use by incorporating filter frames. It can quickly adapt to different air filtration needs. By using filter cotton, it provides air purification, improving air filtration efficiency and ensuring a stable output of filtered air to meet the air purification requirements of various locations.

This utility model discloses a hydrogen injection device for a hydrogen refueling station, including a cooling tank. A first connecting pipe and a second pair of connecting pipes are fixedly installed opposite each other on both sides of the cooling tank. A heat exchange pipe is fixed between the first connecting pipe and the second pair of connecting pipes. Multiple filter cartridges are arranged on the side of the cooling tank closest to the first connecting pipe. Each filter cartridge contains a primary filter screen, a secondary ceramic fiber filter element, and a terminal polymer membrane filter element. The filter cartridges closest to the cooling tank are connected to the first connecting pipe, and the multiple filter cartridges are connected to each other via the second connecting pipe. The top of the filter cartridges furthest from the cooling tank is fixed with the first pair of connecting pipes. Through this structure, the cooling tank effectively suppresses temperature rise during refueling, reducing safety risks caused by the easily elevated temperature of hydrogen during refueling. The three-stage filtration module reduces potential damage to components from contaminant particles in the hydrogen fuel, effectively extending the lifespan of critical components.

This invention relates to the field of image analysis technology, specifically to a machine vision-based quality inspection system for new energy vehicle wiring harnesses and cable ties assembly. The system includes: an image acquisition module that uses polarimetric stereo technology to acquire multi-angle images; a geometric reconstruction and reference extraction module that calculates the surface normal field of the insulation layer and separates the background field of the cable's cylindrical curvature and the micro-indentation residual field, thereby extracting the global axial and radial curvature moduli of the cable; a feature decoupling analysis module that calculates the contour-shaping migration flow field of the indentation micro-residual field relative to the standard contour, and performs anisotropic decomposition of the flow field based on the global axial direction of the cable to obtain the axial slip index; and a quality inspection module that determines an adaptive slip judgment threshold based on the cable's radial curvature modulus, thereby generating inspection results. This invention solves the problems of difficulty in sensing micro-deformation on reflective cylindrical surfaces and the difficulty in decoupling slip risk from assembly tolerances, thus improving the accuracy of wiring harness and cable tie assembly quality inspection.

The utility model relates to the related technical field of aluminum alloy windows, in particular to a safe sealing type aluminum alloy window which comprises a window frame, a window sash body, a lock body, a hollow glass body, an elastic element, a multi-layer sealing component, a water baffle and a drainage component. According to the safe sealing type aluminum alloy window, the window sash body is locked or opened through the lock body, the air tightness and the waterproofness of the window in the closed state are guaranteed through the elastic element and the multiple layers of sealing components, the water baffle and the drainage component further prevent rainwater from invading, and accumulated water is drained in time; therefore, the overall usability and the service life of the window are improved.

The utility model discloses an environment-friendly gutter inlet and belongs to the technical field of gutter inlets, the environment-friendly gutter inlet comprises a well body, a sand setting chamber, a water purifying chamber and a water filtering wall, the open end of the well body is covered with a plurality of grates, the sand setting chamber is arranged in the well body, the sand setting chamber corresponds to the plurality of grates along the vertical direction, and the water purifying chamber is arranged in the well body. The sand setting chamber is used for removing large-particle suspended solids in water flow, the water purification chamber is arranged in the well body and communicated with the sand setting chamber, a rainwater pipe communicated with a municipal drainage system is arranged in the water purification chamber and used for discharging flowing water in the water purification chamber, and the water filtering wall is detachably arranged between the sand setting chamber and the water purification chamber. And the water filtering wall is used for intercepting silt of sewage in the sand settling chamber. Therefore, through multi-stage filtering of the grate, the sand settling chamber and the water filtering wall, silt and suspended solids in rainwater are effectively reduced, the blocking risk of a municipal drainage system is reduced, the cleaning efficiency is improved, the service life of a pipe network is prolonged, and the operation and maintenance cost is reduced.

This utility model relates to the field of water spraying devices, and more particularly to a high-pressure fine water mist spraying device, including a water tank; it also includes a cleaning seat and a nozzle. A filter screen is fixedly connected inside the water tank, and a cleaning seat is provided between the water tank and the filter screen. A water pump is fixedly connected to the upper end of the inner wall of the water tank and inside the filter screen. A support base and a controller are fixedly connected to the upper end of the water tank, and an internal toothed ring is rotatably connected to the inner wall of the support base. Through the use of the cleaning seat, external water is filtered through the filter screen, effectively intercepting impurities in the liquid, preventing nozzle clogging, and improving atomization efficiency. The water pump pumps the filtered water in the water tank to the distribution pipe, and the water is sprayed out by the nozzle for water spraying. After a period of use, the cleaning seat moves up and down to thoroughly remove the sediment on the outer wall of the filter screen and the inner wall of the water tank. Regular cleaning is performed, which has a high degree of automation, improves the cleaning effect and efficiency, reduces the maintenance frequency, and extends the service life of the nozzle.

This utility model belongs to the field of gypsum slurry technology, and particularly relates to a three-stage sedimentation and filtration device for gypsum slurry. It includes a support plate, a support frame above the support plate, a primary filter box above the support frame, an inlet above the primary filter box, a secondary filter tank connected to one side of the primary filter box via a first discharge pipe, a support base below the secondary filter tank, a tertiary filter box connected to one side of the secondary filter tank via a second discharge pipe, and a discharge pipe on one side of the tertiary filter box. The primary filter box contains a vibrating plate assembly for preliminary filtration of the slurry, and a spiral feeding assembly below the vibrating plate assembly. This utility model fundamentally solves the shortcomings of traditional processes in handling complex slurries, achieving deep removal of pollutants and efficient resource recovery while ensuring continuous operation, thus possessing significant economic and environmental benefits.

The invention provides an oil pipeline leakage emergency treatment method. The method comprises the following steps: acquiring leakage point condition data, and performing temporary leakage stoppage on a leakage point based on the leakage point condition data; an oil fence point at the downstream position of the leakage point is selected for oil fence laying; and oil recovery equipment is used for recovering spilled oil. According to the oil pipeline leakage emergency treatment method, the treatment efficiency is improved.

The utility model discloses an air cleaner of automobile engine, including the shell, its characterized in that, is provided with filter assembly in the shell, and the top of shell is equipped with the central pipe, filter assembly includes the upper end cover and lower end cover of interval arrangement, is equipped with the through -hole of central pipe crossing on the upper end cover, is equipped with the support net between the upper end cover and lower end cover, the inboard of support net is equipped with the first filter paper, and the first filter paper is transverse folding shape, the outboard of support net is equipped with the second filter paper, and the second filter paper is longitudinal folding shape, and the both ends of support net, first filter paper and second filter paper are fixedly connected with upper end cover and lower end cover respectively, the utility model discloses is equipped with the support net between the upper end cover and lower end cover, and the inboard of support net is equipped with the first filter paper, and the first filter paper is transverse folding shape, can effectively intercept most particulate impurities in air, and the outboard of support net is equipped with the second filter paper, and the second filter paper shows longitudinal folding shape, and the remaining impurities in air are filtered secondly, thereby improve the filter quality of filter.

The utility model relates to the technical field of filter grid, concretely is a kind of breeding pond water inlet filter grid of fish escape prevention, including frame, the surface of the frame is fixedly installed with screw rod holder, by setting screw rod, cleaning rod, spring, pressing plate, cleaning brush, scraper, utilize the synergistic effect of these structures, when motor drives screw rod rotation, screw rod block drives cleaning rod along slide rod steady movement, ensure that cleaning process is stable and without deviation, spring pushes pressing plate and makes brush piece closely adhere filter plate surface, guarantee brush piece overall contact, avoid brush leak, shovel-shaped scraper located below brush piece, can shovel stubborn impurities attached on filter plate first, then brush piece is thoroughly cleaned to residual small dirt, form the cleaning process of first shovel after brush, both can efficiently remove the plug on filter plate, and can protect filter plate from excessive wear, ensure that filter plate keeps good permeability state for a long time, effectively prevent impurity blockage and fish escape.

The utility model relates to the technical field of indoor environment adjustment, and discloses an indoor ecological health-care system which comprises an ecological room, and an embedded air pipe is fixedly mounted on the inner side of the ecological room. According to the indoor ecological health care system, by arranging the filter plate, the electrostatic dust collection net, the photocatalytic net, the negative ion generator, the cleaning assembly and other assemblies, the traditional passive purification mode of filter net interception is changed, the filter plate and the electrostatic dust collection net can effectively intercept particulate pollutants, the photocatalytic net can actively inhibit or decompose the activity of microorganisms, and the purification effect is improved. The negative ion generator generates negative ions, suspended particles in the air can be adsorbed and coagulated, the negative ions can be combined with bacteria, viruses and the like in the air, the structure of the air is destroyed, the microbial activity is reduced, multiple assemblies act synergistically, the purification treatment efficiency is greatly improved, the risk of secondary pollution in the high-humidity environment is reduced, frequent replacement of a filter screen is not needed, and the cost is reduced. The maintenance cost and the operation complexity are reduced, and a healthier and fresher indoor air environment is created.

The utility model discloses a filter sound -absorbing structure is used to compressor air intake, including front cover, back cover, filter component, the front cover is fixedly connected with back cover and forms the internal cavity, be equipped with a plurality of baffle and sound -absorbing cotton in the internal cavity, the filter component is provided with air inlet and air outlet, the upper portion of front cover sets up the installation cavity, the installation cavity can dismantle and install filter component, the bottom of back cover sets up the air outlet, the length of baffle is less than the length of internal cavity, a plurality of baffles are mutually staggered arrangement, and the airflow channel is formed between mutually staggered arrangement baffle. The utility model integrates filter and sound -absorbing function in the same structure, replaces traditional discrete scheme, before compressor air intake, through the utility model can play the double -deck effect of filter and sound -absorbing, reduces equipment occupied space simultaneously, reduces installation layout difficulty, simplifies installation and maintenance process, and then reduces comprehensive cost.

This invention belongs to the field of pile foundation blasting safety protection technology. Addressing the problems of prominent blind spots and cumbersome disassembly and assembly in existing protective devices, it discloses a wellhead flyrock protection device and method for pile foundation blasting, including a mounting frame, a protective body, and a ground nail shell. The protective body is located in the middle of the mounting frame and is filled with a filling layer that hardens rapidly under the action of the blasting shock wave. It has a protective cavity, a transmission slide rod, a piston plate, and a slide rail. The inner wall of the protective cavity is fitted with the blasting material, and the outer wall is made of aramid fiber. The ground nail shell is detachably connected to the mounting frame. Its internal reinforcement structure, through a linkage assembly, drives a claw structure to embed into the ground, improving stability. The bottom baffle of the mounting frame is equipped with a steel mesh, and the outer side is hinged to a side plate. The side plate is linked to the transmission slide rod through an angle adaptive adjustment mechanism, allowing dynamic adjustment of the protection angle. This invention, through graded protection and deep reinforcement design, achieves interception of blasting flyrock under different working conditions, effectively ensuring the safety of pile foundation blasting operations.

The utility model discloses an acetic ester solvent recycling system, relates to the field of acetic ester solvent recycling, and aims to solve the technical problems that in the prior art, an existing acetic ester solvent is generally recycled by a distillation tower after being used, but a filtering mechanism is not arranged at the front end of the existing distillation tower, so that the cost is low. The problem that the internal structure of the distillation tower is damaged by residual metal scraps in the solvent is solved. A plurality of supporting rods are arranged at the upper end of the interior of the filtering device at equal intervals in an array mode, an electromagnetic iron rod is arranged at the upper end of each supporting rod, bevel guide plates are fixedly connected to the front end and the rear end of the lower end of the interior of the filtering device, and the lower ends of the two bevel guide plates are jointly and fixedly connected with a semicircular filtering net; by arranging the electromagnetic iron rod, the semicircular filter screen and the conical filter screen, separation of metal impurities in a solvent is achieved, and the problem that equipment is damaged by metal scraps due to the fact that the front end of a traditional distillation tower is free of magnetic filtration is solved.

The utility model discloses a kind of high-temperature trona liquid decoloration after powder activated carbon filtration recovery devices, including, tank body, tank body is provided with raw liquid import, tank body inside is provided with inner convergence pipe, multiple groups of filter components are provided on inner convergence pipe, filter cloth is provided on filter component, outer tube is connected on inner convergence pipe, and clear liquid port and circulation port are respectively provided on outer tube, further include the pre-coating mechanism for providing activated carbon coating for filter cloth on filter component, pre-coating mechanism includes pre-coating jar one and pre-coating jar two.The utility model is by being provided with pre-coating mechanism, can form bottom layer skeleton on filter cloth surface first, then fill the gap with low concentration activated carbon to form dense surface layer, to effectively intercept tiny fine powder activated carbon, significantly reduce the risk of fine powder penetrating filter cloth pore, greatly improve the interception efficiency of fine powder of filtration device, guarantee the filtration effect, solve the problem of poor filtration effect caused by fine powder penetration of existing filter cloth type filtration device.

The utility model relates to the technical field of drinking water treatment, and discloses drinking water algae intelligent separation equipment which comprises a filter box, a water inlet pipe is arranged on one side of the filter box, a water outlet pipe is arranged on the other side of the filter box, a rough filtration assembly and a filter assembly are arranged in the filter box, and the filter assembly is located on one side of the rough filtration assembly; a plurality of parallel filter holes are formed in the rough filtration assembly, the filter holes are formed in the middle of the filter plate and extend to the two ends of the filter plate, the rough filtration assembly comprises a first filter plate and a second filter plate, the filter holes in the first filter plate are formed in the horizontal direction of the filter plate, and the filter holes in the second filter plate are formed in the vertical direction of the filter plate; a first gap is formed between the first filter plate and the second filter plate; the filter holes are large in size, a water source can pass through while algae are intercepted, the blocking condition is not prone to occurring, most of the algae are intercepted in the first gaps, the algae in different flowing directions are intercepted through the filter holes in different arrangement modes, the interception effect is better, and clearing is convenient.

This invention relates to the field of biosensing technology, providing a self-driven sorting device with a near-field direct-write gradient grid and its fabrication method. The invention aims to solve the problems of existing microfluidic sorting devices, such as reliance on external power, susceptibility to stacking and clogging, and severe human background interference. The device constructs a spatially heterogeneous geometric topological grid in situ on a porous substrate using a near-field direct-write process, forming a three-level gradient path consisting of a primary coarse filtration zone, a secondary sorting zone, and a tertiary retention zone. This invention utilizes substrate capillary forces to drive sample flow and achieves physical guidance and precise retention of human cells through a deterministic lateral displacement mechanism. While significantly increasing sample processing throughput, it drastically reduces the proportion of human reads in sequencing, providing a convenient and efficient technical platform for automated preprocessing of complex biological samples and high-sensitivity clinical detection.