674results about How to "Large filter area" patented technology

The invention relates to the technical field of water meters, and particularly discloses an Internet of Things intelligent water meter which comprises a water collecting box, mounting mechanisms are fixedly mounted at the input end and the output end of the water collecting box, and a filtering mechanism is movably mounted in the water collecting box. When water flow enters the water collecting box through the conical connecting hopper, the water flow is filtered by the filter screen cylinder, impurities are removed, the Internet of Things intelligent water meter is protected, the water flow makes contact with the spiral blade, the spiral blade is spirally twisted, the water flow drives the spiral blade to rotate, and then the rotary disc and the cleaning brush rotate around the filter screen cylinder to clean the outer surface of the filter screen cylinder; water flow enters the interior after being filtered and screened by the filter screen cylinder, then flows to the detection end of the water meter through the water passing holes of the rotary disc and is discharged from the output end of the water collecting box, the cylindrical filter screen is large in filtering area, the water flow can drive self-cleaning, the influence on the flow speed in the water collecting box is reduced, efficient filtering is kept, and the influence on the water flow speed is reduced.

The invention relates to a gas nano purifier. The gas nano purifier comprises a mounting seat, the gas storage bin is installed on the installation base and used for storing clean gas, the side wall of the upper portion of the gas storage bin extends upwards to form an installation plate, and a gas path through hole is formed in the middle of the installation plate; the gas-water separator is mounted on the mounting plate and is used for carrying out primary purification on to-be-cleaned gas; the adsorption tower is mounted on the mounting plate and is used for carrying out secondary purification on the to-be-cleaned gas; gas to be cleaned sequentially flows through the gas-water separator and the adsorption tower and then enters the gas storage bin; the adsorption tower is communicated with the gas storage bin through an exhaust pipe; and the exhaust pipe penetrates through the gas path through hole. Through the arrangement, the installation operation is greatly simplified, and the integrity and the space utilization rate of equipment are improved.

The invention provides a rapid monitoring device and method for ballast water, relates to the technical field of ballast water monitoring, and provides a more reliable, rapid, effective and standardized monitoring method, a portable device and an enrichment device for entry and exit inspection and quarantine departments. The device comprises a box body, a connecting flange arranged outside the box body and an enrichment device located outside the box body and used for enriching ballast water environment DNA related substances, an inner cavity of the box body is hollow, a positive pressure pump is fixed in the inner cavity of the box body, and a negative pressure pump is fixed in the inner cavity of the box body. A water delivery port and a water discharge port are formed in the box body, the connecting flange is communicated with the water delivery port of the box body through a connecting pipe, a water inlet of the positive pressure pump is communicated with the water delivery port of the box body through a pipeline, a water outlet of the positive pressure pump is communicated with a water inlet of the enrichment device through a pipeline, and a water outlet of the enrichment device is communicated with the water discharge port of the box body through a pipeline.

The invention discloses a red sandstone foundation pit drainage structure and a construction method thereof, and relates to the technical field of foundation pit drainage, the red sandstone foundation pit drainage structure comprises a buoyancy assembly, a water suction pump, an electromagnetic three-way valve and two sediment filtering assemblies, and the two sediment filtering assemblies are controlled by the electromagnetic three-way valve to alternately work; the silt filtering assembly in a working state is used for filtering silt, and the silt filtering assembly in an idle state is used for precipitating and collecting the intercepted silt. Alternate work of the two sediment filtering assemblies is achieved through the electromagnetic three-way valve, drainage continuity is guaranteed, the idle time of the sediment filtering assemblies is effectively utilized for sediment collection, and the situation that efficiency is reduced due to frequent cleaning of a traditional single filtering system is avoided; and the cleaned silt is independently collected, and does not enter the raw water body to cause the increase of the silt concentration and influence the subsequent drainage.

The invention discloses multi-stage wastewater treatment equipment for fabric disinfectant production, and relates to the technical field of wastewater treatment.The multi-stage wastewater treatment equipment for fabric disinfectant production comprises a filtering bin, a shielding cover is detachably and fixedly installed at the top end of the filtering bin, and a water inlet pipe is fixedly communicated with the center of the top of the shielding cover; the auxiliary stirring mechanism comprises a rotating part which is rotationally connected to the center position of the bottom of the inner wall of the filtering bin; the compression of the supporting spring and the compression of the buffer spring are synchronously carried out, when the flow of waste water is reduced or the impact force applied by the flow to the trapezoidal block is changed, the acting force on the supporting spring and the buffer spring is reduced, and the supporting spring and the buffer spring tend to rebound upwards, so that the filter screen is further buffered through the supporting spring and the buffer spring; meanwhile, the filter screen vibrates in the using process, and the situation that the filter screen is blocked by large-particle impurities, and preliminary filtration of the wastewater is affected is avoided.

The utility model relates to the technical field of soil pretreatment, in particular to a soil pretreatment device which comprises a box body and a screening mechanism, a drying mechanism is arranged on the upper side in the box body, the screening mechanism is located on the lower side in the box body, and the screening mechanism comprises a screening assembly and a material control assembly used for controlling the discharging amount of soil. The device has the beneficial effects that impurities in soil are screened and filtered through the screening assembly, in the screening process, the soil on the filter plate is stirred back and forth towards the two sides through the sweeping assembly, the soil is spread towards the two sides, the filtering area is increased, soil adhering to the surface of the filter plate is scraped away, and the utilization rate of the filter plate is increased; the anti-blocking structure is used for applying certain vibration to the filter plate, so that soil on the filter plate is turned over, impurities in the filter plate are turned over along with the soil, the situation that the impurities block filter holes is reduced, soil discharging is more facilitated through vibration, the filtering speed is increased, and meanwhile the filtering efficiency is improved.

The invention relates to the field of coal gasification chilled water, in particular to a coal gasification chilled water filtering system which comprises at least two filter bodies connected into a coal gasification chilled water system and arranged in parallel, and each filter body comprises a shell, a V-shaped sieve plate, a sieve plate flushing assembly and a shell flushing assembly. According to the coal gasification chilled water filtering system, on-line automatic dual cleaning of the filter body can be achieved, under the condition that normal operation of the filtering system is not affected, high-pressure grey water of a coal gasification grey water system is used for cleaning the sieve plate from the upper portion through the top flushing spray head, the inner wall of the shell is flushed through the combination of the side flushing pipe, and the filtering effect is good. The flushing effect of the filter body is improved, the service life of the filter body is prolonged, recycling of the filter body is achieved, the problems that at present, ash blocks the filter, chilled water supply is insufficient, and a gasification furnace cannot operate for a long period are solved, the working intensity of workers is reduced, and the production investment cost is saved.

The utility model relates to the technical field of breather valves, in particular to a diaphragm type sand-proof anti-freezing fire-retardant integrated breather valve which comprises a valve seat covering a tank opening of a storage tank in a sealing mode, an air inlet hole is formed in the valve seat in a penetrating mode, a supporting ring is arranged on the outer side of the air inlet hole in a surrounding mode, and an annular groove is formed in the upper annular face of the supporting ring in a concave mode. A groove cavity of the annular groove is communicated with a tank cavity of the storage tank through an air guide pipe; a valve cover is installed on the valve seat, a breathing film capable of covering the air inlet hole and the annular groove is arranged between the valve cover and the valve seat in a clamped mode, and the air inlet end of the air inlet hole is provided with an inverted conical filter screen in a communicating mode so as to complete the breathing action capable of preventing sand in a matched mode. According to the utility model, the conical filter screen is communicated and mounted at the air inlet, so that impurities such as sand and dust are effectively prevented from entering the breather valve, and the cleanness and normal work of the valve body are ensured. Meanwhile, due to the design of the inverted conical filter screen, the filtering area is increased, the filtering efficiency is improved, sand and dust can slide down and be cleaned conveniently, and the maintenance cost is reduced.

The invention discloses a trash rack grid for hydropower station sewage treatment and a trash holding method thereof.The trash rack grid comprises a trash holding outer frame, the two ends of the trash holding outer frame fixedly communicate with a water inlet and a water outlet correspondingly, and two filtering assemblies used for filtering impurities are arranged in the trash holding outer frame in parallel; the filtering assembly comprises two side plates, and the two side plates are fixedly connected to the two sides of the trash holding outer frame correspondingly. Impurities can be filtered by arranging the first grating plate and the second grating plate and collected in the collecting box, the filtering efficiency can be guaranteed, the two filtering assemblies can be switched by arranging the driving assembly, manual cleaning is not needed, the working efficiency is improved, and the practicability is high. In addition, when the filtering assembly is lifted, the first grating plate and the second grating plate can be turned up towards the two sides, then internal impurities can be helped to be discharged, and then the workload of workers can be greatly reduced.

The utility model relates to the technical field of solid waste treatment, in particular to an orange-shaped filtering and separating device for subcritical DME (Dimethyl Ether) dissolution of high-water-content sludge, which comprises a box body, a filtering and separating unit arranged on the inner side of the box body, a flow guide unit arranged above the filtering and separating unit, and a liquid phase collecting pipe arranged in the middle of the filtering and separating unit, the filtering and separating unit comprises a horizontal bottom plate and a plurality of filtering plates, the horizontal bottom plate is matched with the box body to form a closed space, the plurality of filtering plates are vertically connected with the horizontal bottom plate and are distributed around the periphery of the liquid phase collecting pipe, and the plurality of filtering plates divide the inner side of the box body into a plurality of solid-liquid separating areas and a plurality of liquid phase collecting areas; the solid-liquid separation areas and the liquid-phase collection areas are arranged at intervals, the liquid-phase collection areas are communicated with the liquid-phase collection pipe, openings are formed in the horizontal bottom plate corresponding to the solid-liquid separation areas, and sealing plates are arranged at the positions of the openings; a first purging assembly is arranged at the top of the box body corresponding to the solid-liquid separation area, and a second purging assembly is arranged on the inner wall of the box body corresponding to the liquid phase collection area.

The utility model relates to the technical field of dust removal equipment, and provides anti-blocking dust removal equipment, which is characterized in that three conical filter elements are sequentially arranged at the middle section position inside an outer tank body from top to bottom, three groups of flushing nozzles are arranged on the tank wall of the outer tank body, and each group comprises four flushing nozzles; the four flushing nozzles in one group are aligned to the surfaces of the conical filter elements, three cleaning liquid guide-out valve pipes which are communicated with the top surface spaces of the three conical filter elements respectively are arranged on the tank wall of the right side of the outer tank body, and four filter element anti-blocking scrapers are uniformly distributed on the top surface of each conical filter element; a rotary driving mechanism for driving the four filter element anti-blocking scrapers on the top surface of each conical filter element to rotate and scrape is mounted in the outer tank body; and a negative pressure air pump is mounted on the left side, close to the lower end, of the outer tank body. The dust removal equipment has the advantages of blockage prevention, efficient filtration, automatic cleaning and the like, is suitable for various industrial production places and environments, improves the air quality, guarantees the health of personnel, and is dust removal equipment with excellent performance.

The invention relates to the technical field of oil filtering equipment, in particular to a base oil filtering and separating device which comprises a rack, an inner cavity is formed in the rack, a slag discharging opening and an oil filling opening are formed in the rack, and the oil filling opening is connected with an external positive pressure oil supply mechanism; a restraining cover and a flow slowing plate are arranged in the inner cavity and located above the oil injection port, and the flow slowing plate and the restraining cover form a guiding position flow slowing structure where oil flows along a curve path. A filter pressing frame is arranged above the flow slowing plate, a plurality of filter cartridges are arranged on the filter pressing frame, the outer side walls of the filter cartridges are wrapped with filter screens, and the inner spaces of the filter cartridges extend to the outer side of the rack through oil outlet pipes communicated with the tops. The invention provides a base oil filtering and separating device, which is beneficial for solving the problems that some existing filtering devices adopt an oil filtering path from top to bottom, impurities mixed in crude oil are easy to quickly precipitate to cause filter screen blockage, and the follow-up injected crude oil continuously overflows the impurities to accelerate the complete blockage of the filter screen.

The invention discloses a wastewater treatment device which comprises a box body unit, the box body unit comprises a treatment box and a flow guide frame matched with the treatment box, and a drainage pipe is fixedly installed at the bottom end of the flow guide frame. Wastewater enters the treatment box through a water inlet pipe, drives a water wheel to rotate firstly, then falls to a filter screen to be filtered and then is discharged; the gear and the toothed plate drive the filter screen to swing, so that wastewater is uniformly distributed, the filtering area is increased, filtering is accelerated, the adjusting structure controls the filter screen to improve swinging of the filter screen, the filtering effect of the filter screen is improved, meanwhile, force generated by swinging of the filter screen can remove impurities in filter holes, blockage is prevented, and the service life of the filter screen is prolonged; the driving structure drives the filter screen to rotate, the scraping structure removes impurities, the filter screen flaps the scraping structure when swinging, the impurities fall off, the cleaning effect is enhanced, the falling impurities fall into the collecting box through the material guiding base, and the connecting shaft rotates to drive the spiral blade to push the impurities to the material guiding opening to be discharged.

The present invention relates to the technical field of bag dust collectors, and proposes a self-cleaning mechanism of a bag dust collector, including a shell, the shell having a first air inlet and a first air outlet; a mounting platform is arranged in the shell, and the interior of the shell is divided into a first cavity and a second cavity; a number of support cages are arranged on the mounting platform; a pleated bag is sleeved on the support cage, and the gas to be treated in the first cavity passes through the pleated bag and enters the second cavity; a back-blowing nozzle is arranged in the second cavity; there are two slides, the two slides are arranged in the support cage at intervals, and slide vertically relative to the support cage, a high-pressure space is formed between the two slides, and the back-blowing nozzle is connected to the high-pressure space. Through the above technical scheme, the problem that the bag dust collector using pleated bags for dust removal in the prior art simply uses back-blowing means to clean the bags, and the folds of the bags are not completely cleaned is solved.

The utility model belongs to the technical field of water purification equipment, particularly relates to drinking water filtering equipment convenient to clean, and aims to solve the problems of frequent replacement of a filter element and complicated cleaning in the background technology, the following scheme is provided: the drinking water filtering equipment comprises an outer cylinder, a baffle ring is welded at the bottom of the inner wall of the outer cylinder, and a cloth bag filter element is placed on the outer wall of the top of the baffle ring; and brackets which are distributed at equal intervals are welded on the inner wall of the baffle ring. Under the action of the support, on one hand, the filtering area of the cloth bag filter element can be increased to the maximum extent, on the other hand, the opening of the cloth bag filter element can be forced to face downwards, most impurities can be directly separated from the cloth bag filter element after being filtered, the filtering period of the cloth bag filter element is prolonged, the replacement frequency of the cloth bag filter element is reduced, and the consumable cost is saved; the washing coverage of the double-head washing spray head is wide, thoroughness of cloth bag filter element cleaning is guaranteed, automatic cleaning of the cloth bag filter element is achieved, and compared with an external cleaning mode of equipment, convenience of filter element cleaning is greatly improved.

The invention discloses a filtering module, a filtering assembly, a pre-filter and a water consumption system, and relates to the technical field of water consumption systems.The filtering module is internally provided with a water passing cavity, and the filtering module is provided with a first water passing opening and a second water passing opening which are communicated with the water passing cavity; the filtering module comprises a filtering piece arranged at the second water passing opening, the filtering piece is annularly arranged and is provided with an inner ring edge and an outer ring edge, and the outer ring edge is located on the axial side of the inner ring edge. According to the technical scheme, the filtering area of the filtering module can be increased.

The invention relates to the technical field of lubricating oil treatment, in particular to a waste lubricating oil rapid natural precipitation device which comprises a precipitation cylinder and a fixing plate distributed over the precipitation cylinder and fixedly connected with an external object, and a filtering mechanism is arranged in the precipitation cylinder; the filtering mechanism comprises a first filtering assembly, the first filtering assembly comprises a filtering cylinder arranged on the upper side in the precipitation cylinder, a sliding rail of an annular structure is fixed to the upper side of the exterior of the filtering cylinder, and the filtering cylinder is rotationally connected with the inner wall of the precipitation cylinder through the sliding rail. According to the filtering structure, on one hand, metal wires in the cutting oil can be effectively filtered and subjected to impurity removal, the filtered metal wires are collected, the collected metal wires are stacked and laid in the filtering structure, a better silk screen filtering structure is formed, the filtering effect is further improved in the reverse direction, on the other hand, secondary filtering is provided, and the filtering effect is improved. The filtering area of the filtered cutting oil is further increased, oil sludge and metal dust impurities in the cutting oil are filtered, and the quality of subsequent cutting oil is improved.

The invention relates to the technical field of industrial furnaces, and discloses an industrial furnace dust adsorption device which comprises an industrial furnace, a supporting frame, a gas collecting and filtering mechanism and a discharging mechanism, the supporting frame is installed at the upper end of the industrial furnace, and the gas collecting and filtering mechanism is installed in the middle of the supporting frame; the discharging mechanism is installed in the middle of the gas collecting and filtering mechanism, the gas collecting and filtering mechanism comprises a gas collecting unit, a rotating unit and a flow dividing unit, the gas collecting unit is installed at the upper end of the industrial furnace, the rotating unit is installed in the middle of the gas collecting unit, and the flow dividing unit is installed in the middle of the gas collecting unit. According to the dust adsorption device of the industrial furnace, the flow dividing unit in the gas collecting and filtering mechanism is installed, and the first discharge flow dividing pipe, the second discharge flow dividing pipe and the third discharge flow dividing pipe are arranged to be at three heights, so that most use conditions can be met, and the situation that the discharge rate is low due to the fact that pipelines are too thin is avoided; therefore, the smoothness of discharging and filtering can be improved.

A portable air purification device of the present invention comprises a filter module and an air blower, wherein the air blower is provided with an air inlet and an outward output port, the filter module is a breathable filter material soft bag, the filter material soft bag is filled with filter material, a cavity is provided in the filter material soft bag, the air blower is arranged in the cavity, and its air inlet is connected to the inside of the filter material soft bag. The portable air purification device of the present invention can quickly disassemble and replace the filter material soft bag to replace the filter material, and is flexible to use and convenient to carry.

The utility model relates to the technical field of down silk filtering, and discloses a device for filtering down silk in down products by utilizing static electricity, which comprises a filtering chamber, a raw material bin, a feeding hole, two air inlets, a dustproof net, an air blower, an electrostatic generator and a filtering assembly, two rotating connecting pieces are fixedly connected to the front end of an inner cavity of the movable groove at equal intervals, a rotating shaft is rotatably connected between the two rotating connecting pieces, a cover plate is fixedly connected to one side of the outer surface of the rotating shaft, a discharging bin is fixedly connected to the right end of the filtering chamber, and a discharging pipeline is fixedly connected to the bottom end of the discharging bin. Down silk and impurities in an inner cavity of the filtering chamber are charged through the electrostatic generator, the cross-shaped filtering plate is charged by the power supply, the down silk and the impurities are adsorbed on the surface of the cross-shaped filtering plate through the opposite charges, the cover plate is convenient to open and close through the movable groove, the filtering assembly is convenient to clean and replace, and the filtering effect of the device is guaranteed.

The invention discloses a filtering module, a filtering assembly, a pre-filter and a water using system, and relates to the technical field of water using systems.The filtering module comprises a plurality of supporting frameworks and a filtering piece, a water passing cavity is defined by the supporting frameworks, and a first water passing opening and a second water passing opening which are communicated with the water passing cavity are formed; in a filtering flow path of the pre-filter, the second water passing port, the water passing cavity and the first water passing port are sequentially distributed along upstream and downstream; the filtering part is arranged on the supporting framework and corresponds to the second water passing opening, and at least part of the filtering part is obliquely arranged. According to the technical scheme, the filtering area of the filtering module can be increased.

The utility model discloses a water conservancy project gate water purification device, relates to water conservancy gate technical field, including gate frame, interception subassembly and filter screen, the inside of gate frame is provided with gate main part, and the interception subassembly is installed in the front of gate frame, the interception subassembly includes interception screen frame, locking bolt and interception screen, locking bolts penetrate through the upper sides of the intercepting net frames, a blocking net is fixed between the intercepting net frames, the blocking net is of an arc-shaped structure, rear side plates are fixed to the rear side of the gate frame, a filter screen is installed between the rear side plates, and a trash removal assembly is installed above the outer side of the filter screen. According to the gate water purifying device for the water conservancy project, the blocking net is of an arc-shaped structure, compared with a plane-shaped structure, the available water filtering area is larger, the blocking net can conveniently intercept garbage and impurity dirt passing through the gate body, the filtering net can conveniently intercept impurities passing through the gate body again, pollutants are prevented from passing through, and therefore the multi-layer water purifying effect is achieved.

The invention discloses a batch rapid cultivation device for sweet clover seedlings, and relates to the technical field of cultivation devices, and the batch rapid cultivation device comprises a composite mechanism. According to the batch rapid cultivation device for sweet clover seedlings, through the design of a composite mechanism, the seedlings are placed in a square block 16, the growth trend of the seedlings is restrained through a limiting mechanism 17, the growth space of the seedlings is optimized, single-body growth is facilitated, and the situation that the cultivation quality is affected due to mutual winding is avoided; water is precipitated in seedling soil, part of the water permeates downwards, excessive water is collected through a collecting box 15, pollution to the interior of equipment is avoided, corrosion to the internal equipment is prevented, then the collecting box 15 is pulled from a lower sliding rail 14, subsequent cleaning of the excessive precipitated water is facilitated, meanwhile, the composite mechanism 1 is closed, and the composite mechanism 1 can be used for collecting the residual water. The internal space can be kept moist, and the growth environment is optimized.

The utility model relates to the technical field of filtering equipment, and discloses a filtering device for recycling high-temperature condensate water, which comprises a shell, a filter screen cylinder is arranged in the shell, a plugging plate is arranged at one end, close to a water inlet of the shell, of the filter screen cylinder, and the diameter of the plugging plate is matched with the inner diameter of the shell; a water inlet hole is formed in the part, larger than the diameter of the filter screen cylinder, of the plugging plate; one end, close to the water outlet of the shell, of the filter screen cylinder is communicated with an outlet in the end part of the shell; a cleaning sleeve is rotationally arranged on the shell, and a cleaning brush in contact with the outer wall of the filter screen cylinder is arranged in the cleaning sleeve; according to the utility model, the filtering area of circulating water can be increased, the filtering efficiency is ensured, meanwhile, regular dirt cleaning can be realized without disassembly, and the conditions that the filtering efficiency is reduced due to the fact that dirt is attached to the filtering net cylinder and the working intensity is increased due to frequent disassembly are avoided.

The invention belongs to the technical field of water treatment, and particularly relates to a channel coupling type superfine grid based on water passing capacity improvement and an operation method thereof.The main body frame is connected with the bottom face of a fine grid channel through a first support, a water inlet baffle is further vertically arranged on the bottom face of the fine grid channel, and the water inlet baffle is buckled to the end, close to a water inlet, of a side plate; a cover plate of the fine grid channel is provided with a second support and a spiral squeezing groove; an equipment outer cover is buckled on a side plate and the spiral squeezing groove; a filtering grid plate is horizontally and fixedly arranged between the side plates, the two ends of the filtering grid plate are connected with the water inlet baffle and the slag guide plate respectively, and the slag guide plate is further connected with the spiral squeezing groove; a driving rotating shaft, a first driven rotating shaft and a second driven rotating shaft are arranged between the side plates; the driving chain wheel, the first driven chain wheel and the second driven chain wheel are connected through a transmission chain, and a slag scraping plate is arranged on the transmission chain. The problems of insufficient water passing capacity, separation grid slag penetration, high driving energy consumption and the like of a traditional fine / superfine grid can be solved.

The utility model relates to the technical field of filter elements, and discloses a novel filter element which comprises a filter element body and filter element end covers, the filter element end covers are arranged at the two ends of the filter element body, the filter element body comprises filter paper, the periphery of the filter paper is sequentially folded to form a plurality of first folding parts, and the outer side of any first folding part is folded inwards to form at least one second folding part; the filter element body is formed by folding and enclosing the first folding parts, and the second folding parts are arranged at the first folding parts, so that the second folding parts are added under the condition that the number of the first folding parts is not changed, the filtering area of the filter element body is increased under the condition that the inner diameter of the filter element body is not changed, and the filtering effect is further improved.

The utility model relates to a filter cartridge for a pit filter, and belongs to the technical field of pit filters. Comprising an inner cylinder and an outer cylinder, the outer cylinder is a hollow annular shell, the inner wall and the outer wall of the outer cylinder are each provided with a first through hole communicated with the interior of the outer cylinder, the inner cylinder is located in the outer cylinder, the inner cylinder and the outer cylinder are coaxially arranged, and the outer wall of the inner cylinder is provided with a second through hole communicated with the interior of the inner cylinder; an annular water inlet cavity is formed between the inner wall of the outer barrel and the outer wall of the inner barrel, the corresponding ends of the outer barrel and the inner barrel are open, and the end, close to the opening of the outer barrel, of the annular water inlet cavity is fixedly connected with an annular sealing plate. According to the utility model, the problem of low filtering efficiency of a pit filter in the prior art is solved.

The present application relates to the field of sewage filtering devices, and specifically to a sewage treatment filtering device, which comprises: a filter bin configured to limit a cavity for temporary storage of sewage; a catalytic filter element disposed in the filter bin and configured as a spiral structure; and a cleaning device sleeved on the outer wall of the catalytic filter element; a driving device connected to one end of the catalytic filter element and configured to drive the catalytic filter element to rotate around its own central axis; a limiting device slidably connected to the cleaning device and configured to limit the moving direction of the cleaning device so that the cleaning device rotates and moves around the surface of the catalytic filter element when the catalytic filter element rotates. The present application can automatically clean the surface of the catalytic filter element through the above-mentioned structural design, extend the service life of the catalytic filter element, and improve the cleaning efficiency and cleaning effect.

The utility model discloses a kitchen waste sorting device. The kitchen waste sorting device comprises a machine body, a feeding hopper is installed at the upper end of the machine body, a liquid outlet pipe is installed at the bottom end of the machine body, a filter screen is installed in the machine body, an inner cylinder is installed on one side of the machine body, screw rods are installed in the inner cylinder and the position, located on the upper side of the filter screen, in the machine body, and an outer cylinder is installed on the outer side of the inner cylinder. The outer cylinder and the machine body are connected in a penetrating mode, water seepage holes are formed in the section, located in the outer cylinder, of the inner cylinder, a cover plate is rotationally installed at the upper end of the feeding hopper, sterilization mechanisms are installed on the two sides of the cover plate, and a cleaning mechanism is installed in the middle of the cover plate. After the machine is used, the cover plate is reset, the interior of the machine body can be cleaned through the cleaning mechanism, odor caused by bacteria breeding in the machine body due to attachment of dirt and greasy dirt is avoided, the interior of the machine body can be sterilized and disinfected through the sterilization mechanism after cleaning, and cleanliness of the interior of the machine body is guaranteed.

The invention relates to the field of filtering devices, in particular to a material filter pressing device which comprises a high-water-level water tank, a low-water-level sedimentation tank and a floating filter plate, the high-water-level water tank is located on one side of the low-water-level sedimentation tank, the bottom of the high-water-level water tank is communicated with the bottom of the low-water-level sedimentation tank, and the low-water-level sedimentation tank is located on the lower middle portion of the high-water-level water tank. The floating filter plate is horizontally arranged in the low-water-level sedimentation tank, and the edge of the floating filter plate is in sliding connection with the inner wall of the low-water-level sedimentation tank in the vertical direction. The floating filter plate continuously filters water in the low-water-level sedimentation tank, meanwhile, the water is settled in the low-water-level sedimentation tank, the water in the low-water-level sedimentation tank always upwards penetrates through the floating filter plate, and materials filtered from the lower surface of the floating filter plate can be stably attached to the lower surface of the floating filter plate; the attached and settled materials and the materials in the attaching and settling process are prevented from being dispersed, material settling and filtering of the low-water-level settling pond in the water body below the floating filter plate are facilitated, and the filtering and settling efficiency is improved.