18results about How to "Improve backwashing effect" patented technology

The present application relates to sewage treatment technical field, especially to a kind of biological aerated filter, comprising: pool body, aeration body and filter plate, the filter plate is located in the lower part of pool body, pool body is divided into two parts, the lower part of pool body is pipe gallery, the upper part of pool body is sequentially provided with supporting layer, filter material layer and effluent zone from bottom to top, the aeration body is set in the upper part of filter plate, the upper part of aeration body passes through supporting layer and extends into filter material layer, sewage inlet pipe and backwash inlet pipe are respectively arranged on the side wall of one side of pipe gallery, the effluent outlet is arranged on the side wall of one side of pool body in effluent zone, the present application provides a kind of biological aerated filter, increases the running direction and running path of oxygen, makes filter material and oxygen in multidirectional contact sufficiently, improves the transfer efficiency of oxygen and the utilization rate of filter material, improves the oxidation degradation efficiency to sewage, effectively improves sewage treatment efficiency.

The utility model provides a mobile engineering machinery vehicle hydraulic oil purification device, including the car body and setting on the car body coarse filter, fine filter, vacuum tank, motor oil pump group and electric control cabinet, is provided with walking wheel in the bottom surface four corners of car body, and the oil inlet of coarse filter is connected through the connecting pipe with hydraulic oil tank, is provided with the oil inlet valve on connecting pipe, and the oil outlet of coarse filter is connected with heater through pipeline, and heater, vacuum tank and condenser are connected in proper order through pipeline, and vacuum tank is connected with vacuum pump, and the oil outlet of this vacuum tank is connected with fine filter through pipeline and motor oil pump group, and the oil outlet of fine filter is connected with oil storage jar, and the bottom of condenser is provided with the drain valve, and its top is provided with the condensing pipe, the utility model discloses can filter out the impurity in the hydraulic oil through setting filter on the movable car body, guarantees the filtering effect simultaneously through the cooperation of heater, vacuum tank and condenser to remove the moisture in the hydraulic oil.

The utility model discloses a flat sheet membrane assembly with a plug-in type cluster combination modular structure, which preferably comprises a hollow flat sheet membrane assembly body, an upper connecting piece, a lower connecting piece, a rubber division bar, a groove-shaped plate and an O-shaped sealing ring, a plurality of hollow flat diaphragm assemblies with the same specification are arranged in parallel at intervals along the thickness direction of the hollow flat diaphragm assemblies to form a group, the upper ends of the hollow flat diaphragm assemblies are inserted into holes of the upper connecting piece and are detachably connected in parallel through O-shaped sealing rings, and the lower ends of the hollow flat diaphragm assemblies are embedded into the lower connecting piece through rubber division bars to be detachably connected in parallel; groove-shaped plates are symmetrically embedded in the side faces between the upper connecting piece and the lower connecting piece, and detachable connection is formed, so that a plurality of hollow flat plate membrane assemblies are bundled into an integral combined structure. In a preferred second scheme, except for all the structures in the first scheme, the device further comprises a water collecting box connected to the upper connecting piece. The utility model provides two preferable schemes, so that the installation mode is more flexible, and the adaptability is stronger.

The utility model discloses an integrated water purifier for surface water treatment, which comprises a water purifier, the water purifier comprises a water purification tank, a reactor is arranged on the water purification tank, a filter tank is fixedly arranged in the water purification tank, a honeycomb filler layer is arranged at the top of the filter tank, the filter tank is communicated with the reactor, and an anthracite filter layer and a quartz sand filter layer are arranged at the bottom of the water purification tank. A back flushing pipe is arranged below the quartz sand filter layer, one side of the back flushing pipe is communicated with a water outlet pipe and a driving pipe, the driving pipe is provided with a flow rate adjusting device and a water pump, sewage in the reactor reacts with a flocculating agent and then enters the filter box, and large particles in the sewage enter the filter box under the action of the honeycomb filler layer. Filtered water is further filtered by the quartz sand filter layer and the anthracite filter layer and then is discharged through the backwashing pipe and the water outlet pipe, siphon backwashing is changed into a water pump, backwashing strength is high, backwashing is thorough and clean, and the filter effect is good.

This invention relates to the field of filtration equipment, specifically to a fiber media filter. The tank contains multiple vertically spaced mesh panels, with fiber ball filter media positioned between adjacent mesh panels. A steel wire rope connects adjacent mesh panels. The bottom mesh panel is fixedly installed inside the tank, while the top mesh panel is connected to a drive component for vertical movement. The tank contains a rotating rod driven by a power unit and rotating around its own axis. The rotating rod vertically penetrates the multiple mesh panels. A rotating sleeve is vertically slidably mounted on the rotating rod between adjacent mesh panels, and actuating blades are fixedly mounted on the rotating sleeve. During backwashing of the fiber ball filter media, a first electric push rod retracts, causing the top mesh panel to move upwards. This, in turn, pulls the steel wire rope to widen the spacing between the multiple mesh panels, dispersing the fiber ball filter media between the mesh panels and preventing the multiple layers of fiber ball filter media from accumulating together.

The invention discloses a balanced backwashing mechanism and a system thereof, and belongs to the technical field of filter tank backwashing. The mechanism comprises a balancing sleeve, a liquid inlet pipe is arranged at the top of the balancing sleeve, a liquid distribution cover is arranged in the balancing sleeve, and a liquid inlet groove is formed in the bottom of the liquid distribution cover; a first threaded cylinder is connected below the liquid distribution cover through a fixed cylinder, a first screw rod is in threaded connection in the first threaded cylinder, and a mixing auger is connected to the bottom end of the first screw rod; a sliding plate is rotationally connected among the plurality of mixing augers, and a floating bag is arranged at the bottom of the sliding plate. The water level change is sensed through the floating bag, the mixing auger is driven to rotate, and dynamic mixing and uniform liquid distribution of backwashing water flow are achieved; meanwhile, through cooperation of a second screw rod and the liquid distribution pipe, rotary spraying of the liquid distribution pipe is achieved, and the liquid distribution uniformity is further improved. The backwashing device is compact in structure, good in backwashing effect and capable of effectively prolonging the backwashing interval and saving water.

The present application relates to the technical field of porous metal filtering device, and particularly relates to a metal sintered filter element filtering and separating device intelligent control method and system, which comprises the following steps: obtaining the prominent performance of the plugging degree at each time according to the difference of the pressure difference parameters between adjacent time of the metal sintered filter element filtering and separating device; obtaining the backwashing trigger index at each time according to the prominent performance of the plugging degree and the pressure difference parameters at each time and before each time, so as to determine the trigger time; obtaining the backwashing strength requirement from the backwashing trigger index, the pressure difference parameter and the prominent performance of the plugging degree, so as to output the backwashing control instruction of the trigger time. The present application determines the trigger time in combination with the real-time plugging condition inside the metal sintered filter element filtering and separating device, improves the accuracy and reliability of the backwashing trigger start control, and the backwashing strength requirement of the trigger time is related to the actual state of the trigger time, which can improve the backwashing effect.

The utility model relates to mine water treatment technical field, concretely relates to a mine water treatment station valveless filter, mainly solves the technical problem that the backwash effect of valveless filter is poor. The valveless filter of this no includes water inlet subassembly, filter assembly, backwash subassembly and blow material subassembly, and filter assembly includes filter box and fresh water tank, and backwash subassembly includes backwash upper water pipe, backwash lower water pipe, backwash auxiliary pipe, exhaust pipe, backwash destruction pipe and drainage sink, and blow material subassembly includes fan, air pipe and cut -off valve. The valveless filter of this no adds blow material subassembly, when backwashing, opens cut -off valve and starts fan, and fan blows into airflow to the filter material in filter box through the air blowing hole of air pipe, and airflow can scatter the impurity such as particle deposited on filter material, and can be discharged with backwash water flow, so as to be able to improve the effect of backwashing greatly, avoid the hardening caused by filter material impurity deposition, guarantee filter material service life.

This invention relates to a method for preparing a high-purity tubular silicon carbide external coating film. The external coating film is applied to the outside of single-channel or multi-channel tubular silicon carbide supports of various sizes using a negative / positive pressure coating process. The film layer consists of one or two layers. The preparation method of the film layer is as follows: First, silicon carbide powder, silicon source, pH adjuster, dispersant, and solvent are mixed to obtain a uniform and stable slurry with high solids content. Then, using a special negative / positive pressure process, the slurry is uniformly coated onto the outside of the single-channel or multi-channel tubular silicon carbide support. After drying, it has a certain strength. Finally, it is sintered under a protective atmosphere without pressure to obtain a high-purity silicon carbide external coating film that is tightly bonded to the support. This invention innovatively coats a silicon carbide membrane separation layer onto the outer wall of a support body, enabling it to process liquids with no upper limit on solid content. Furthermore, the membrane layer is tightly bonded to the support body, exhibits good erosion resistance, high filtration accuracy, good backwashing effect, and is not prone to clogging. It has broad application prospects in fields such as coal mine wastewater separation, high-viscosity industrial wastewater filtration, recovery of acid solutions containing precious metals, and purification or concentration of high-concentration slurries under harsh working conditions.

The utility model relates to the related technical field of water treatment, in particular to a water treatment all-in-one machine combining laminated filtering and automatic dosing, which comprises an equipment body, and the equipment body comprises an electric cabinet arranged at the top of the inner side of a cabinet body; a treatment assembly is arranged in the cabinet body and comprises a water inlet pipe penetrating through one side of the cabinet body; the laminated filter is arranged in the cabinet body; the backwashing valve is arranged between the water inlet pipe and the laminated filter; the medicine storage box is arranged at the inner bottom of the cabinet body; the suction pumps are symmetrical to the outer side of the water inlet pipe; the connecting pipe is arranged between the pesticide storage box and the suction pump; the blow-off pipe is arranged at the bottom of the backwashing valve and penetrates through the other side of the cabinet body; the water drainage pipe penetrates through the other side of the cabinet body and is located at the bottom of the backwashing valve, a laminated filter and dosing equipment are combined through the treatment assembly, an up-down structure is formed, and occupied space is saved.

The utility model discloses a deep bed denitrification filter which comprises a filter body, a filter bed filled in the filter body and a backwashing pipeline, the filter bed comprises a lower supporting layer, a microbial filler layer positioned above the lower supporting layer, an upper supporting layer positioned above the microbial filler layer and a filter material filling layer positioned above the upper supporting layer; the backwash pipeline comprises a lower-layer backwash pipe laid below the lower supporting layer, an upper-layer backwash pipe laid below the upper supporting layer and a water supply pipe used for conveying backwash water, the water supply pipe is divided into two paths, one path is connected with the lower-layer backwash pipe, and the other path is connected with the upper-layer backwash pipe; and switch valves are mounted on the two water supply pipes. According to the utility model, the backwashing effect can be effectively improved, the backwashing frequency of an area where microorganisms are located is reduced, and the influence of backwashing on microbial populations is reduced.

The utility model discloses an incrustation scale filtering structure, which relates to the technical field of incrustation scale filtering devices and comprises a shell assembly, a filter element and a wall scraping assembly, wherein the shell assembly consists of a filter cartridge shell, a water outlet, a polygonal butt joint block, a bottom cover shell, a drain outlet, a backwashing water inlet and a filter water inlet; and a channel formed by the backwashing water inlet and the drain outlet is used for realizing backwashing operation on filtered impurities. Through the arrangement of the shell assembly with the backwashing water inlet and the drain outlet and the wall scraping assembly, backwashing operation on the filter element can be realized, and meanwhile, water flow entering the filter cartridge shell through the backwashing water inlet impacts the water wheel blades, so that the water wheel blades drive the inner scraping plate, the rotating ring seat and the outer scraping plate to rotate integrally; therefore, the outer side surface of the filter element main body and the side surface of the inner wall of the filter cartridge shell are scraped, adhered impurities are scraped and taken away by flowing water flow, and the backwashing effect is further improved.

The utility model discloses a filter device for wastewater treatment belongs to wastewater treatment technical field, this device includes processing jar, top cap and filter mechanism, the upside opening of processing jar, bottom is equipped with blowdown pipe, and is equipped with blowdown valve on blowdown pipe, is equipped with the water inlet pipe between the supporting ring and blowdown pipe in processing jar, filter mechanism is located in processing jar, and is placed on supporting ring, top cap is detachably connected with processing jar, is equipped with the water outlet pipe on top cap, is equipped with the compression ring in top cap, and compression ring is pressed on the upper end surface of filter mechanism. The filter mode of lower water inlet upper drainage greatly reduces the impurity adhesion amount of filter mechanism bottom, can carry out backflushing to filter mechanism, and backflushing effect is good, guarantees the filtration efficiency of filter device to wastewater.

This invention provides an activated sludge sorting method and a wastewater treatment method. The activated sludge sorting method includes the following steps: supplying a portion of activated sludge from a biological treatment tank to an activated sludge sorting device; sorting the portion of activated sludge to remove sludge residue, thereby obtaining first activated sludge; and returning the first activated sludge to the biological treatment tank; measuring the organic matter content in the first activated sludge to obtain a first organic matter content; and comparing the first organic matter content with a predetermined organic matter content value to determine whether further sorting of the activated sludge in the biological treatment tank, including the first activated sludge, is necessary. By employing the activated sludge sorting method of this invention, the sorting status of the activated sludge can be monitored in real time based on the organic matter content, thereby improving the treatment effect of the activated sludge process.

This invention provides a filtration device, comprising: a receiving cavity for containing particulate filter media, the receiving cavity including a first sub-receiving cavity, a second sub-receiving cavity, and a third sub-receiving cavity connected sequentially along the flow direction of the liquid to be filtered; the bottom of the first sub-receiving cavity is connected to the top of the second sub-receiving cavity, and the bottom of the second sub-receiving cavity is connected to the top of the third sub-receiving cavity; along the flow direction of the liquid to be filtered, the cross-sectional area of ​​the first sub-receiving cavity gradually decreases, the cross-sectional area of ​​the second sub-receiving cavity remains constant, and the cross-sectional area of ​​the third sub-receiving cavity gradually increases; the top of the first sub-receiving cavity is provided with a liquid inlet; an arched filter screen, including: a first screen body arched towards the liquid inlet; and a support portion, one end of which is connected to the outer periphery of the first screen body and is sealed to the inner wall of the second sub-receiving cavity. Using the above solution, the service life of the particulate filter media can be extended and the backwashing effect can be improved.

The utility model relates to the technical field of filters, in particular to a continuous multi-medium filter which comprises a shell, and the outer wall of the shell is connected with a cover plate through a hinge; an exhaust pipe is installed above the shell through screws, a feeding port is welded to one side of the shell, a discharging port is welded to the other side of the shell, the middle of the shell is connected with a backwashing water outlet and a liquid water inlet through flange pipelines, the liquid water inlet is formed in one side of the backwashing water outlet, and the liquid water inlet is formed in the other side of the backwashing water outlet. The interior of the shell is connected with a perforated plate through a hinge, a filter layer is attached to the upper part of the perforated plate, quartz stone is attached to the upper part of the filter layer, a backwashing water inlet is welded to the upper part of the perforated plate, and an output shaft of an air cylinder is mounted below the perforated plate through a shaft pin. The improved filter is provided with a plurality of layers for continuous filtration, and is additionally provided with a backwashing filtration device and an assembly for quickly changing materials of an internal filter layer, so that the replacement of the internal materials is more convenient.

The utility model relates to the technical field of machining equipment, and discloses an engine air inlet precise milling device which comprises a mounting table, a blocking frame is fixedly connected to the outer portion of the mounting table, a milling machine is arranged on one side of the blocking frame, a machining table is fixedly connected to the interior of the blocking frame, and a collecting assembly is arranged in the mounting table. The collecting assembly comprises a slope groove, the slope groove is formed in the mounting table, a water frame is fixedly connected to the lower surface of the mounting table, and two mounting grooves are formed in the inner wall of the water frame. Water flow after milling and washing can directly flow back into the water frame conveniently, water flow recycling is facilitated, meanwhile, under the double filtering action of the large-hole filtering plate and the small-hole filtering plate, impurity particles mixed in backflow water are effectively reduced, the risk that a spraying head is blocked is reduced, and after water flow filtering is completed through the collecting assembly, the water flow can be recycled conveniently. And a backwashing function is added to the filter plate, so that impurity particles blocked in filter holes can be cleaned.

This utility model relates to the field of backwash filter technology and discloses a high-pressure pulse backwash filter, including a tank with a high-pressure air pipe rotatably connected to the top of the tank. This high-pressure pulse backwash filter, through the arrangement of a rotating mechanism, high-pressure air pipe, and nozzles, operates as follows: When a drive motor on one side is activated, it drives a top auxiliary gear and a main gear meshing with the auxiliary gear to rotate. This causes the high-pressure air pipe installed inside the main gear to rotate inside the tank under the drive of the top rotating joint. In conjunction with a pulse generator on one side, high-pressure gas is delivered to the nozzles. The high-pressure gas is then ejected at high speed in a pulsed form through the inclined injection holes of the nozzles. Because the nozzles are rotating, the ejected high-pressure pulsed airflow can evenly cover every area of ​​the filter's inner surface, avoiding any dead zones that could affect the normal operation of the device.