272results about How to "Guaranteed filtering effect" patented technology

The invention relates to the technical field of sewage treatment, in particular to a sewage purification method which comprises the following steps: S1, introducing sewage into a filtering device, and efficiently removing formed solid impurities in the sewage by using the filtering device; s2, discharging the sewage from which the large solid impurities are removed into a water storage tank, and then carrying out ultrasonic atomization treatment on the sewage to remove water-insoluble impurities; s3, collecting and condensing atomized water mist, and then adding the atomized water mist into an adsorption tank; the filtering device comprises a treatment box and a fixing rod, a baffle is connected to the treatment box in a sliding mode, a plurality of filtering holes are formed in the treatment box and located in the right side of the baffle, the treatment box is in an inclined posture with the left higher than the right, a sliding block is connected to the fixing rod in a sliding mode, and the efficient filtering effect on large solid impurities can be achieved without a filter screen; the filtering effect is ensured for a long time, and the filtering efficiency of large solid impurities is improved.

The utility model provides a kind of green laser welder, it is related to full tab electric core production technical field, including machine body, the side of machine body is fixedly installed with controller, the surface of machine body is fixedly installed with support, the top of support is fixedly installed with hydraulic cylinder one, the output end of hydraulic cylinder one is fixedly connected with lifting plate, the bottom of lifting plate is fixedly installed with mounting plate.The utility model drives bidirectional screw rod to rotate by starting motor, so that sliding block drives arc clamping plate to move towards, so different size negative current collector can be clamped, cooperate arc clamping plate inside natural rubber arc-shaped protective pad to further improve clamping stability, while rotating the rotating head on fixed plate, drive screw rod to rotate, so that protruding block drives lower pressing plate to move downwards, the surface of negative tab can be compacted and fixed, ensure that welding area is closely fitted, improve welding precision and product yield.

The present application relates to the technical field of shale gas sampling, in particular to a shale gas exploitation sampling device and method, the device comprises a box body and an inspection door, a filter box is arranged in the upper middle part of the box body, a low-temperature box is arranged in the lower middle part of the box body, an adsorption box is arranged in one end of the box body, a shunt pipe is arranged on the inner wall of the bottom end of the low-temperature box, a cooling mechanism for low-temperature water removal is arranged in the low-temperature box, a filtering mechanism for automatic filtering and automatic cleaning is arranged in the filter box, an adsorption mechanism for adsorption is arranged in the adsorption box, and a connecting mechanism for connecting a sampling pipeline is arranged in one end of the box body. The device can be suitable for sampling pipelines of different sizes and shapes, can ensure the firmness and sealing property of the connection, can automatically sample and purify different shale gases comprehensively, and can ensure the accuracy and sufficient amount of sampling.

The utility model provides a sand blasting device for imitating a sand beach in a water park, which can effectively filter large-particle substances in mortar and periodically scrape and clean a filter piece through a scraper blade to ensure the filtering effect of the filter piece, and comprises a containing cavity and at least one first discharge hole, the filtering piece is arranged at the end, located in the containing cavity, of the first discharging opening and used for filtering large-particle matter in mortar; and the scraping plate is matched with the filtering piece and is used for scraping the surface of the filtering piece.

The utility model discloses a temperature control oil change type transformer oil tank which comprises a transformer oil tank body. The transformer oil tank cooling device has the advantages that the first oil passing tank, the spiral cold guide oil pipe, the second oil passing tank and the electric heating rod are arranged, so that when transformer oil needs to be cooled, cooling liquid is continuously introduced into the first oil passing tank, the cooling effect is achieved, the cooling effect is good, and the cooling effect is good. Cooling liquid in the first oil passing box is used for cooling oil passing through the spiral cold guide oil pipe, when transformer oil needs to be heated, all electric heating rods in the second oil passing box are used for heating the transformer oil passing through the second oil passing box, and a filter screen plate, a rotating rod and an impurity scraping plate are arranged, so that the oil passing through the spiral cold guide oil pipe is cooled; when the output end of the motor drives the rotating rod and the impurity scraping plate to rotate, the impurity scraping plate scrapes impurities filtered out from one side of the filter screen plate, and the filtering effect of the filter screen plate on transformer oil is guaranteed.

The application discloses an intelligent dust removal device for waste gas treatment of a coal-fired power plant, and relates to the technical field of waste gas treatment.The device comprises a dust removal box, an air inlet fixedly connected to the side wall of the dust removal box, a filter plate fixedly connected to the inside of the dust removal box, and a filter effect real-time detection mechanism and a dust cleaning and collecting mechanism.The device can reduce unnecessary troubleshooting and maintenance frequency, thereby reducing maintenance cost and time cost, and can maintain or replace the clogged or damaged filter plate in time when the filter plate is damaged, so that the continuous and efficient operation of the spray dust removal system can be ensured, and the overall operation efficiency is improved.Further, the device can avoid long-time use of the filter plate without timely maintenance or replacement, so that impurities and particulate matter can be prevented from entering the spray dust removal system, the cleanliness of water resources is ensured, and the overall performance of the spray dust removal system is improved.

A hidden drainage ditch system of a building curtain wall comprises a drainage ditch, a cover plate is installed on the drainage ditch, a water inlet is further formed in the upper portion of the drainage ditch, and the hidden drainage ditch system further comprises a filtering assembly arranged at the water inlet. The filtering assembly further comprises a primary filtering piece and a secondary filtering piece; the primary filter part comprises a barrier plate mounted at the water inlet, and a drainage gap for water flow to pass through is formed between the barrier plate and the water inlet; the secondary filtering piece comprises a filtering plate and a plurality of leakage holes formed in the filtering plate. According to the utility model, the blockage problem of the drainage ditch can be further relieved, and the maintenance intensity of the drainage system can be effectively reduced, so that the reliability and stability of the drainage system are enhanced.

The utility model relates to cooling equipment technical field discloses a cooling tower, including base, the upper surface fixed connection of base has support frame, the upper surface fixed connection of support frame has tower body, the outer wall fixed connection of tower body has the fairing, the inside fixed connection of fairing has the fan, the inside fixed connection of tower body has annular pipe, the inside fixed connection of annular pipe has the limit cylinder, the inside sliding connection of limit cylinder has the clamping block, the outer wall fixed connection of clamping block has first telescopic link, the outer wall sliding connection of first telescopic link has first spring. In the utility model, through adopting elastic buckle structure, through the mutual cooperation between clamping block, first spring and limit cylinder, through simple pulling, the spray head can be separated from annular pipe, only needs to be inserted during installation to be automatic locking, need not the tool auxiliary, significantly shorten the spray head replacement or cleaning time, avoid the cooling efficiency decline caused by the spray head blockage, guarantee equipment continuous stable operation.

This utility model provides a water collection device for irrigating garden plants, belonging to the field of garden irrigation technology. It includes a water collection channel with a rotatable screen cylinder inside. A partition plate, attached to the outer wall of the screen cylinder, is inclinedly fixed to the top of the inner wall of the water collection channel. A pipe, fixed to the inner wall of the water collection channel, is embedded in the inner cavity of the screen cylinder. A nozzle is installed on the outer wall of the pipe to spray water onto the inner wall of the screen cylinder. After filtering muddy water, a water pump introduces the filtered water into the pipe through a return water pipe. Water is then sprayed onto the screen cylinder by the nozzles on the pipe. The continuously rotating screen cylinder cleans the screen holes sequentially, ensuring the filtration effect of the screen cylinder. The filtered water is further treated by the filter layer. A water purification agent channel extending outwards is fixedly installed at the bottom of the outer wall of the water collection channel. Water purification agent is introduced into the water collection channel through this channel, and a linkage stirring component mixes and stirs the water purification agent, improving the water treatment effect.

The utility model relates to the technical field of swimming pool anti-blocking filtering, in particular to a swimming pool filtering system filter element anti-blocking flow guiding device which comprises a filter element anti-blocking flow guiding device body and a filter element, a lower barrel and an upper barrel which are connected with each other are arranged outside the filter element anti-blocking flow guiding device body, and water inlet pipes are arranged on the side face of the upper barrel in a central symmetry mode. A spiral guide plate is integrally arranged on the inner side of the lower barrel, a spiral brush is fixed to the side edge of the spiral guide plate, positioning bosses are integrally arranged at the bottom of the inner side of the lower barrel and the top of the inner side of the upper barrel respectively, the upper end and the lower end of the filter element are rotationally clamped with the positioning bosses respectively, and double-layer filter paper is installed on the side face of the filter element. And an inner support transmission framework is connected in the filter element. According to the filter element anti-blocking flow guide device of the swimming pool filtering system, the filter element can be rotated, the spiral flow guide plate is arranged outside the filter element, swimming pool water can be evenly distributed, the filtering effect is guaranteed, meanwhile, the outer portion of the filter element can be cleaned, and the filtering anti-blocking effect is improved.

The utility model relates to the technical field of machining center machines, and discloses a metal machining center machine which comprises a protection bin, a machining center body is installed in the protection bin, a liquid collecting box is fixed to the bottom face in the machining center body, and the liquid collecting box corresponds to a machining table of the machining center body in position. A filtering assembly used for filtering cutting fluid is arranged on the top face of the fluid collecting box and comprises a filtering plate fixed to the top face of the fluid collecting box, and a jacking needle cylinder is arranged in the fluid collecting box and located below the filtering plate. Waste liquid impurities are filtered and separated through the filter plate to achieve recycling of cutting liquid, the jacking needle cylinder is driven to rotate below the filter plate, the needle tip of the jacking needle cylinder is inserted into the filter hole of the filter plate to jack up the impurities in the filter hole, the scraping plate can conduct scraping and cleaning conveniently, and the cutting liquid recycling device is simple in structure and convenient to use. Impurities are prevented from being blocked in the filtering holes and are difficult to clean, and the cleaning effect on the filtering plate is effectively improved, so that the filtering effect of the filtering plate is ensured.

This utility model belongs to the field of sludge filtration technology and discloses a dynamic sludge filtration device, including a housing. A filtration unit and a discharge unit are connected to the outside of the housing via a rotating motor and a discharge motor, respectively. The filtration unit and discharge unit are located inside the housing. A water pumping unit is located at the top of the housing and connected to the water pumping unit via a filtration water pumping pipe. The discharge unit is located at the bottom of the filtration unit and the water pumping unit. This utility model can increase the sludge contact area and filtration area, allowing liquid to penetrate into the filter housing more quickly. Combined with the rotating water pumping component, the liquid is promptly extracted, improving the speed and efficiency of sludge dewatering and shortening the processing cycle. The rotating motor drives a rotating rod, which in turn causes the filter housing to rotate within the sludge. Dewatering is achieved using the principle of free liquid permeation. Compared to traditional methods that rely on strong external force for dewatering, this effectively reduces the moisture content of the filter cake and significantly reduces energy consumption.

The utility model relates to paper processing equipment technical field discloses a kind of processing equipment for high-temperature-resistant waterproof wrapping paper production, including rack, and the side of rack is equipped with feed inlet, and feed inlet is used to high-temperature-resistant waterproof wrapping paper into the inboard of rack;Two support plates are fixed in the inner wall of rack, and two groups of rotating rollers are rotatably connected between rack and support plate, and rotating roller is used to flatten high-temperature-resistant waterproof wrapping paper;Rack top is equipped with heating assembly, and heating assembly is used to dry high-temperature-resistant waterproof wrapping paper;Heating assembly side is equipped with connecting assembly, air is heated by electric heating wire, and hot air is blown out using fan, and several air outlets on first air outlet pipe are evenly blown to the two sides of raw material, to ensure that drying process is uniform, can quickly and effectively dry treatment to high-temperature-resistant waterproof wrapping paper kraft paper raw material, remove moisture in paper, improve production efficiency.

The application discloses a kind of intelligent filter-pressing devices and processes suitable for organic silicon of filter-pressing device technical field, including support seat, the front and rear ends of the support seat are all fixedly connected with main beam, and the side away from support seat between two main beams is fixedly connected with thrust plate;After the end of filter-pressing, external controller will control drive block to open filter plate one by one, filter cake falls off, during the movement of filter plate, filter cloth will be separated from filter plate under the action of separation plate, which is conducive to the separation of filter cloth and filter plate, the filter residue attached to the surface of filter cloth can be separated from filter plate, which is convenient for subsequent cleaning, to avoid filter cloth and filter plate sticking together during cleaning, filter residue will be closely attached to the surface of filter cloth and filter plate during filter-pressing, which makes it difficult to clean;Subsequently, the filter residue on the surface of filter cloth will be scraped off by scraping block, which is conducive to cleaning the filter residue remaining on the surface of filter cloth after one filter-pressing, to avoid the influence of residual filter residue on the filtering effect of filter cloth.

The utility model discloses a switch direct-current power supply with a filtering anti-burning circuit, which mainly solves the problem that the existing switch power supply is easy to short-circuit and cannot be used normally. The switch direct-current power supply comprises a full-bridge rectifier D connected in series with the input end of an alternating-current power supply, a power-on protection circuit connected with the input end of the alternating-current power supply, a surge protection circuit connected with the full-bridge rectifier D, a filtering anti-burning circuit connected with the surge protection circuit, and a short-circuit protection circuit connected with the filtering anti-burning circuit, and the direct-current output end is connected with the short-circuit protection circuit. Through the above design, the switch DC power supply effectively solves various unstable factors, such as voltage fluctuation, short circuit and surge, possibly encountered by a traditional DC power supply in a complex line and a severe environment through the accurately designed circuit assembly, thereby substantially improving the operation stability and safety of electronic equipment.

The utility model provides a multifunctional return filter applied to a blood return process. The multifunctional return filter comprises a return upper shell and an interceptor lower shell which are symmetrically arranged up and down, a filter screen is arranged between the return upper shell and the interceptor lower shell, a first connecting pipe is arranged at the top of the return upper shell, and a second connecting pipe is arranged at the bottom of the return lower shell; the first connecting pipe and the second connecting pipe are designed to be L-shaped, and the connecting parts of the first connecting pipe and the second connecting pipe and an external pipeline are horizontally arranged. Through the first connecting pipe and the second connecting pipe which are designed to be L-shaped, the connecting position of the connecting pipe and an external pipeline is transversely arranged, the stability during connection is improved, and the connecting position is prevented from falling off.

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 relates to the technical field of wastewater treatment, in particular to a device for treating wastewater containing perfluorinated compounds, which comprises a filtering tank and a settling tank, a precipitation tank for chemical reaction precipitation of the wastewater is arranged below the filtering tank; wastewater is poured into the filtering tank, perfluorinated compounds in the wastewater are adsorbed and suspended solids and impurities in the wastewater are filtered out through the activated carbon adsorption plate and the filtering plate in the filtering tank, then the wastewater enters the depositing tank, and fluorine ions in the wastewater are removed through chemical deposition of the wastewater and a proper amount of chemical agents. According to the method, fluorine ions react with a medicament to generate insoluble precipitates, so that the concentration of the fluorine ions in wastewater is reduced, after the filtering structure is used for a period of time, the filtering structure is detached and cleaned, accumulated pollutants are removed through regular cleaning, the filtering effect is kept, the wastewater treatment efficiency is improved, meanwhile, the filtering performance is kept through regular cleaning, and the service life of the filtering structure is prolonged. The wastewater treatment effect and the wastewater treatment quality are ensured.

This utility model discloses a phosphate rock slurry filtration device, belonging to the field of phosphate rock processing technology. It includes a filter box and filter plates located within the filter box. The bottom of the filter box is provided with a corrugated bottom plate, which includes multiple adjacently arranged recesses and protrusions. Each protrusion corresponds to a filter plate, and the filter plate is inserted into the protrusion. Each recess has an inlet on one side and an outlet on the other side. This utility model, through the corrugated bottom plate and multiple filter plates located on the protrusions, can effectively filter the slurry while ensuring that filtered impurities settle in the recesses, reducing secondary filtration and improving the overall filtration effect of the filter box. Furthermore, the filter plates can be easily removed from the chute and slot for cleaning or replacement by lifting them.

The application discloses a ball valve, which comprises a main pipeline, a fixed cover is fixedly connected to the upper side wall of the main pipeline, a ball is movably embedded in the inner wall of the main pipeline and is located below the fixed cover, an arc-shaped movable groove matched with the ball is formed in the inner wall of the main pipeline, a water through hole is formed in the middle part of the ball, a rotating shaft is movably and fixedly connected to the upper side wall of the ball and extends through the inner top wall of the main pipeline and into the fixed cover, a tooth rod is movably and fixedly arranged in the upper side wall of the fixed cover, and a limiting mechanism is arranged on one side of the tooth rod in the fixed cover. The rotating mode is replaced by the pressing mode, so that the ball valve is conveniently opened, and under the impact of flowing water on the turbine, the cleaning brush can reciprocally clean the filter screen, the filtering effect of the filter screen is ensured, the main pipeline is prevented from being blocked, and the user only needs to push the push plate inward to achieve the effect that the ball valve is automatically closed, so that the ball valve is convenient to use.

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 discloses a water recycling device for a bottle washing machine, and belongs to the technical field of ultrasonic cleaning equipment, the water recycling device comprises a main water tank, a mounting frame is placed at the top of the main water tank, and a water inlet pipe used for guiding sewage in the bottle washing machine into the main water tank is embedded in one side of the upper surface of the mounting frame; a filter hopper is fixedly mounted on the lower surface of the mounting frame through a mounting block, and a drainage pipe is fixedly connected to the position, close to the lower end, of the side wall of the main water tank; according to the bottle washing machine, sewage in the bottle washing machine is guided into the main water tank through the water inlet pipe, the sewage is filtered through the filter hopper, the filtered clean water is conveyed into the auxiliary water tank through the drainage pipe to be reused by the bottle washing machine, and cyclic utilization of water resources is achieved; the connecting block rotates in the filter hopper, the cleaning brush is driven to rotate and clean the filter hopper, impurities such as precipitates on the filter hopper are cleaned up, the impurities are prevented from blocking the filter hopper, and the filtering effect is kept.

The utility model belongs to the technical field of agriculture, and provides an agricultural economic water-saving device which comprises an installation plate, supporting grooves oppositely installed at the upper end of the installation plate, a water tank arranged between the two supporting grooves, a water outlet pipe communicated with one side of the water tank, a water pump arranged at the upper end of the installation plate, an input end of the water pump communicated with the water outlet pipe, and an output end of the water pump communicated with a pipeline. Nozzles are arranged on the outer surface of the pipeline. Rainwater is effectively collected through the water tank in rainy days, reasonable utilization of water resources is achieved, irrigation water source supply is increased, and dependence of agricultural production on underground water or surface water is reduced, so that water cost is saved, water resource environment protection is facilitated, sustainable development of agricultural production is achieved, and the ecological agriculture development requirement is met. The filter screen can effectively intercept sundries such as fallen leaves, branches and soil, it is ensured that rainwater entering the water tank is relatively clean, and the rainwater collecting quality is improved.

This utility model relates to the field of central water treatment technology, specifically a water-saving central water treatment device, including a discharge box. An inlet is fixedly connected to the top of the discharge box, and a filter plate and an activated carbon honeycomb plate are arranged inside the discharge box. A dosing port and a drain port are fixedly connected to the surface of the discharge box. This utility model utilizes the movement of a plug within a first fixed block, coupled with a first spring, to allow the plug to engage and disengage with a slot. This facilitates the limiting and releasing of the connecting plate, and allows the mounting frame to slide in and out. The opening of the sliding groove and the setting of the slider facilitate the installation and removal of the filter plate and activated carbon honeycomb plate. This allows for convenient cleaning and replacement of the filter plate and activated carbon honeycomb plate during water treatment, ensuring the filtration and adsorption effects of the filter plate and activated carbon honeycomb plate, thereby guaranteeing the quality and efficiency of water treatment and reducing water loss.

A river ecological dike dam comprises a bottom frame body, a storage shell is arranged on the bottom frame body, and the upper surface of the storage shell is obliquely arranged; the storage shell comprises bottom supporting rods connected with the bottom frame body, a plurality of vertical supporting rods are arranged on the bottom supporting rods, a bottom supporting net is arranged between every two adjacent bottom supporting rods, and a vertical supporting net is arranged between every two adjacent vertical supporting rods. Lateral supporting nets are arranged between the bottom supporting rods and the vertical supporting rods which are oppositely arranged, and gaps among the bottom supporting nets, the vertical supporting nets and the lateral supporting nets are filled with coarse sand. According to the device, the mode that the device is arranged at the bottom of the dike dam is adopted, the collecting and filtering effects on shoreside sundries and garbage can be achieved, water and soil loss can be prevented, and under some conditions needing greening, some plants suitable for the conditions can be planted by internally arranging coarse sand so as to meet the greening requirement.

The utility model discloses a combined spliced graphitization furnace waste gas treatment device relates to graphitization furnace waste gas treatment device technical field, the utility model discloses a bottom plate is installed the filter jar at the top of bottom plate, the water tank is installed at the top of bottom plate, the top fixedly connected with exhaust pipe of water tank. The utility model discloses a filter part, specifically when the waste gas that enters the inside of filter jar is primarily filtered, the rotation of pivot one will drive the rotation of vibrating piece one, and the convex block on vibrating piece one will contact with the convex block on vibrating piece two when vibrating piece one rotates, makes filter plate slide on guide rod, and makes spring contract, when the convex block on vibrating piece one and vibrating piece two no longer contact, spring drives filter plate reset, to this realizes the vibration effect of filter plate, reduces the dust in waste gas and adheres the situation on filter plate, has promoted the passability of filter plate, has reduced the jam problem that filter plate appeared because of dust adhesion, has guaranteed the filtration effect.

This utility model relates to the field of polishing fluid filtration technology, specifically to a steel ball surface polishing fluid circulation filtration system, including a filter box, a mesh frame horizontally fixedly connected inside the filter box, a filter screen installed on the inner surface of the mesh frame, a connecting frame fixedly connected to the back of the filter box, a guide rail horizontally fixedly connected to the front of the connecting frame, a slide block slidably connected to the guide rail, an electromagnet fixedly installed on the left side surface of the connecting frame, a connecting plate fixedly connected to the front of the slide block, a connecting rod horizontally extending through the connecting plate, two limiting rings fixedly sleeved on the outer surface of the connecting rod, a shaped through groove through the connecting frame, an mounting plate fixedly connected to the back of the connecting rod, a crossbar fixedly connected to the back of the mounting plate away from the connecting rod, the crossbar being located in the shaped through groove, and an mounting frame fixedly connected to the front of the connecting rod. This application enables magnetic cleaning of metal particles on the filter screen surface without removing the filter screen, saving time and effort while improving work efficiency.

This invention discloses a biochemical treatment device and method for producing water from high-salinity gas fields via MVR distillation. The device includes a base, a biochemical tank at the top of the base, a support frame on the side of the base, and a collection mechanism below the support frame that automatically detects and collects excess sludge. A sealing mechanism is installed on the side wall of the biochemical tank, and a filter plate is installed inside the tank. This invention, through the configuration of a drive motor, an electric telescopic rod, a fan-shaped collection chamber, a first trapezoidal block, a contact rod, a reciprocating switch, and a second trapezoidal block, achieves automatic cleaning when the sludge reaches half the capacity of the biochemical tank, preventing a reduction in tank volume from affecting biochemical treatment efficiency. Furthermore, the adjustment mechanism gradually increases aeration as aerobic bacteria multiply, ensuring sufficient oxygen for nitrification and maintaining the wastewater treatment efficiency of the biochemical tank. This adaptive adjustment requires no manual intervention and is convenient and quick.

The utility model discloses a special building water supply and drainage device which comprises a collecting tank, two limiting pieces are arranged outside the collecting tank, two lifting pieces are arranged outside the collecting tank, a sealing cover is arranged above the collecting tank, the bottom face of the sealing cover is connected with a connecting column, the bottom face of the connecting column is connected with a filter screen plate, and the filter screen plate is connected with a water inlet pipe. The bottom surface of the collecting tank is communicated with a blow-off pipe, and the outer surface of the blow-off pipe is communicated with a blow-off electric butterfly valve. According to the utility model, through the two lifting pieces arranged outside the collecting tank, the lifting plate, the sealing cover and the filter screen plate can be driven to move upwards, power can be provided for the lifting motion of the filter screen plate until the filter screen plate is moved out of the upper part of the collecting tank and is as high as the top of the collecting tank, and at the moment, the cleaning tool can directly clean the filter screen plate in all directions; compared with a traditional internal cleaning mode, impurities can be cleared away more thoroughly, slag discharging omission is avoided, the filtering effect of the filtering net plate is guaranteed, and follow-up drainage is facilitated.

The utility model discloses a mixing and grinding device convenient to clean for anticorrosive paint production, which comprises a base and a filter plate, a case is fixedly mounted at the top of the base, a feed port is fixedly sleeved in the middle of the top of the case, a grinding roller is arranged in an inner cavity of the top of the case, and a mixing barrel is arranged in an inner cavity of the bottom of the base. A stirring motor is fixedly installed on the lower surface of the middle of the mixing barrel, the output end of the stirring motor is fixedly sleeved with a main shaft, a plurality of stirring rods are fixedly installed on the outer surface of the main shaft, the filter plate is obliquely arranged in an inner cavity in the middle of the base, and the outer surfaces of the two sides in the length direction are slidably installed on the inner walls of the two sides of the base; a vibrating mechanism is arranged under the filter plate, and a circulating material returning mechanism is arranged on the side, close to the back face of the machine box, of the filter plate in the length direction; by means of the conveying function of the inclined filter plate and the circulating material returning mechanism, large-particle-size particle raw materials are cleaned and subjected to backflow treatment, the filtering effect of the filter plate is guaranteed, and meanwhile the actual production efficiency is improved.