38results about How to "Reduce filter pressure" patented technology

The invention relates to the technical field of industrial waste gas purification, in particular to an industrial waste gas purification ecological protection device which comprises a machine body, a purification liquid cavity and a dust collection cavity are integrally formed in the middle of the machine body, an annular limiting groove is formed in the inner wall of the machine body, and an impurity temporary storage cavity is integrally formed in the bottom end of the machine body; an impurity separation assembly is arranged at the bottom of the inner side of the machine body, and the annular limiting groove is slidably connected with the driving assembly. According to the improved ecological protection device, waste gas entering the machine body is subjected to primary impurity removal through the impurity separation assembly, so that the filtering pressure of a filter screen is reduced, a cleaning piece and an impurity cleaning plate are driven to rotate, impurities in the filter screen and an impurity temporary storage cavity are cleaned, meanwhile, a driving assembly can further drive a spraying turbulent flow assembly to operate, and the cleaning effect is improved. The rising speed of the waste gas is reduced while purifying liquid is sprayed out of the industrial waste gas, the contact time of the purifying liquid and the waste gas is prolonged, and the purifying effect on the industrial waste gas is improved.

The invention discloses a resourceful treatment device and method for lithium-containing wastewater, the resourceful treatment device for the lithium-containing wastewater comprises a reaction tank and a stirring assembly, the reaction tank is used for storing the lithium-containing wastewater, the stirring assembly is used for stirring the lithium-containing wastewater in the reaction tank, the stirring assembly comprises a mounting frame, the mounting frame is rotatably connected with a stirring main rod, and the stirring main rod is rotatably connected with the reaction tank. The stirring assembly comprises a stirring main rod, a plurality of stirring branch rods are arranged on the stirring main rod, a first cavity is formed in the stirring main rod, second cavities are formed in the stirring branch rods, the first cavity is communicated with the second cavities, heat sources can circulate in the first cavity and the second cavities, and the stirring assembly further comprises a medicine adding pipeline which is arranged on the stirring main rod. Compared with the prior art, the resourceful treatment device for the lithium-containing wastewater is beneficial to extracting heavy metal ions in the lithium-containing wastewater and reducing the filtering pressure of the filtering device, so that the cleaning and maintenance times of the filtering device are reduced, and the resourceful treatment cost of the lithium-containing wastewater is reduced.

The invention provides a thermal power plant wastewater filtering mechanism which comprises a filtering box body and a filtering net plate, and the filtering net plate is used for filtering thermal power plant wastewater; the dynamic mixing assembly moves along with the dosing assembly and rotates, and the dynamic mixing assembly is used for stirring the liquid in the filtering box body; and the cleaning and mixing assembly is connected with the dynamic mixing assembly, the cleaning and mixing assembly operates along with the operation of the dynamic mixing assembly, and the cleaning and mixing assembly is used for further stirring the liquid in the filter screen plate and cleaning the filter screen plate at the same time. The thermal power plant wastewater can be filtered by utilizing the filter screen plate, and the dynamic mixing assembly and the clear mixing assembly can rotate along with the movement of the chemical adding assembly, so that liquid in the filter screen plate is stirred, a treatment chemical can be in full contact with the thermal power plant wastewater, and the treatment effect of the treatment chemical on the thermal power plant wastewater is improved; and the cleaning and mixing assembly moves to clean the filter screen plate, so that the filter screen plate is prevented from being blocked to influence use.

The invention discloses a multi-stage filtering device and a filtering process for grinding fluid of a grinding machine, and the multi-stage filtering device mainly comprises a supporting bottom frame, a filtering box, a horizontal filter, a sewage pump, a static ring settling box, a static ring water pump and the like. Efficient stepped precipitation of the grinding fluid is realized, the pressure of the horizontal filter is greatly reduced, the filtering effect is improved, and the service life is prolonged. The innovative design of the static ring settling tank is combined with hoisting equipment, so that sludge is quickly cleaned, and manpower is saved. The second settling tank shaped like the Arabic numeral seven and the guide rail are designed to provide sufficient walking space for the horizontal filter, and cleaning is convenient; the waste output ends of the paper filter and the magnetic filter are arranged in different directions, and the waste mixed loading problem is solved. In addition, the device is further provided with intelligent monitoring facilities such as an ultrasonic liquid level meter, a liquid level alarm, a water supplementing pipe and an electromagnetic valve, and stable operation is ensured.

The utility model discloses an anti-blocking FFU (fan filter unit), which belongs to the technical field of FFU filtration and comprises a machine body, the upper end of the machine body is fixedly connected with a support block, the upper end of the support block is fixedly connected with a bearing frame, an opening of the machine body is fixedly connected with a filter cover, the bearing frame is rotatably connected with a spiral scraping strip, and the spiral scraping strip is fixedly connected with the machine body. A gap of 0.5 mm is reserved between the spiral scraping strip and the filter cover, and the upper end of the spiral scraping strip is fixedly connected with a fan blade. When the machine body works, air is sucked in through the filter cover, airflow acts on the fan blades, the fan blades rotate, and the spiral scraping strips are driven by the fan blades to rotate; when the thickness of large-particle dust accumulated on the filter cover exceeds 0.5 mm, the spiral scraping strip is used for cleaning the dust, the dust on the filter cover is prevented from being accumulated too thick, meanwhile, the filter cover is used for preventing the large-particle dust from entering the machine body, the filter pressure of the filter element in the machine body is reduced, and the filter element is conveniently prevented from being blocked in the replacement period.

The utility model discloses a switching device, which comprises a plunger disc, a plunger piston, a plunger piston, a plunger piston and a plunger piston, wherein the plunger piston disc is correspondingly arranged at a liquid outlet at the bottom of a liquid storage tank of a full-automatic coating filter; the driving rods are arranged on the two sides of the plunger disc; the sliding rail is fixedly arranged on the liquid storage tank and corresponds to the position of the driving rod, and the driving rod is arranged in the sliding rail in a sliding mode; the connecting rod is hinged to the bottom of the driving rod; the rotating frame is hinged to the tail end of the connecting rod; the output shaft is hinged to the middle of the rotating frame; the cylinder is connected to the bottom of the output shaft. The full-automatic coating filter comprises the switching device. According to the switching device and the full-automatic coating filter thereof, the coating can be intermittently input, and the filtering pressure of the filter is reduced.

The present invention discloses an air circulation purification system for a barite powder production workshop, including: a diaphragm pump connected to the air inlet end of any ventilation port in the production workshop, a gravity dust collector connected to the exhaust end of the diaphragm pump, for preliminary sedimentation of powder in the air, a cyclone separator connected to the exhaust end of the gravity dust collector, for rapid preliminary separation of powder with larger particles in the air, and a bag filter connected to the exhaust end of the cyclone separator for fine filtering and separation of powder with larger particles in the air. The air circulation purification system for the barite powder production workshop adopts a series-parallel mode of multiple dust treatment devices to filter the powder in the air at multiple stages, so that the filtering pressure of the equipment with slower filtering speed and higher filtering accuracy is lower, so that the air to be filtered can pass through the equipment with higher filtering accuracy as soon as possible, and the air circulation speed in the production workshop is improved.

The utility model relates to the technical field of domestic sewage purification, and discloses a sewage purification treatment device which comprises a main body mechanism, a cleaning mechanism and a filtering mechanism, the cleaning mechanism is located at the outer end of the main body mechanism, and the filtering mechanism is located at the inner end of the main body mechanism. The main body mechanism comprises a machine body, a supporting rod, a rubber pad, an initial limiting area, a first movable groove and a second movable groove, and the supporting rod is fixedly installed at the lower end of the machine body. According to the sewage purification treatment device, impurities on the filter screen are pushed to the two ends of the filter screen through the movable plate capable of moving left and right, the filter screen is prevented from being blocked by the impurities, the sewage discharge efficiency is prevented from being influenced, hair is cleaned by a brush on a connecting shaft through the connecting shaft capable of rotating and moving left and right, and the filter screen is prevented from being blocked by the hair; when the hair on the brush is too many, the connecting shaft is rotated and is separated from the fixed shaft, so that the connecting shaft is taken down to clean the hair on the brush, and the flexibility of the device is improved.

The invention relates to the technical field of insect prevention devices, in particular to an all-weather insect prevention protection device for greenhouse planting and a protection method.The all-weather insect prevention protection device comprises a greenhouse ventilation mounting plate and an insect prevention filter screen plate, a support is fixedly connected to the outer wall of one side of the greenhouse ventilation mounting plate, and a driving motor is mounted on the outer wall of the bottom end of the support; one end of an output shaft of the driving motor is connected with a rotating rod through a coupler, the outer wall of the rotating rod is fixedly connected with a plurality of first bevel gears, a plurality of air inlet grooves are formed in the outer wall of one side of the greenhouse ventilation mounting plate, and the outer wall of one side of each air inlet groove is fixedly connected with a rectangular frame. The air inlet flow direction during ventilation can be controlled, the ventilation uniform effect is better, the rotary drum can be matched with the fixed cleaning plate to achieve self-cleaning of the filter structure during rotation, the insect-proof filter screen plate is connected through the spring and matched with the spherical protrusion to vibrate, the cleaning effect is further enhanced, and the cleaning effect is improved. And the use efficiency of the anti-scour protection device for greenhouse planting is improved.

The utility model relates to the technical field of sewage treatment, in particular to an efficient membrane separation type wastewater treatment device which comprises a support, a membrane separation unit and a pretreatment unit are arranged on the inner side and the outer side of the support respectively, the pretreatment unit is communicated with the membrane separation unit, and the pretreatment unit is used for pre-filtering wastewater; wherein the pretreatment unit comprises a cylinder part, a filter part and a cleaning part are arranged in the cylinder part, the cleaning part is sleeved with the filter part through a connecting assembly, large-particle impurities contained in wastewater can be pre-filtered through the arrangement of the pretreatment unit, and the wastewater filtering efficiency is further improved; the cleaning part cleans impurities adhering to the inner wall and the outer wall of the filter part while reciprocating, the situation that the filter part is inconvenient to clean and affects the wastewater treatment efficiency is prevented, and the first cleaning part and the second cleaning part can be detached and replaced after long-time use.

The juice extractor comprises a shell and a material container, a hydraulic cylinder is fixed to the inner top wall of the shell, an electronic variable pump is fixed to one side of the hydraulic cylinder, a mounting plate is fixed to the bottom end of the hydraulic cylinder, and limiting rods are fixed to the left end and the right end of the mounting plate; an electric telescopic rod is fixed to the bottom end of the mounting plate, a pressing block is fixed to the bottom end of the electric telescopic rod, and the material container is fixed to the inner bottom wall of the shell. Compared with an existing juice extractor, the juice extractor has the advantages that juice is extracted in a pressing mode, few material fragments are generated, the pressure of the filtering mechanism is greatly reduced, meanwhile, the pressing mechanism can move downwards slowly, and therefore the juice extractor can be suitable for juice extraction in different stages; and shock absorption can be conducted on the device in the vertical direction and the side direction, so that damage caused by shock to the device is reduced, and noise generated when the device works can also be reduced.

The invention relates to the field of air purification, in particular to a plasma air purification and disinfection machine, comprising a machine body, wherein a disinfection unit is arranged in the machine body, and the disinfection unit comprises a primary filter module, an electrostatic ion adsorption module, a plasma catalytic module, a plasma disinfection module and a negative ion freshness module; a pair of symmetrical side walls of the machine body are movable plates, which are installed at a disassembly window of the machine body through a clamping unit, and the interior of the machine body inside the disassembly window is sequentially installed with the primary filter module, the electrostatic ion adsorption module, the plasma catalytic module and the plasma disinfection module from bottom to top; the primary filter module is installed at the air inlet of the lower end side wall of the machine body; a negative ion freshness module is installed above the plasma disinfection module, and the negative ion freshness module is placed at the air outlet at the top of the machine body.

The invention relates to the technical field of greasing agent preparation, in particular to a preparation device of a grease type greasing agent for ecological leather, and the preparation device comprises a cooling unit and a filtering unit. The mixture is quantitatively filtered and quantitatively cooled at the same time, the mixture dispersedly flows downwards in the process that the mixture makes contact with the filtering grid plate, solid particles in the mixture are completely filtered through cooperation of the filtering grid plate and the second filtering frame, the filtering grid plate can reduce the filtering pressure of the second filtering frame, and the filtering efficiency is improved. A large number of solid particles are prevented from being accumulated on the surface of the second filtering frame to cause blockage, filtering and cooling are synchronously carried out in the whole process, the processing efficiency of the device is improved, and meanwhile the cooling and filtering difficulty of the mixture is reduced.

The utility model discloses a kind of high-precision filter elements of hydraulic circulating system, related technical field of hydraulic system is disclosed.The utility model includes main component and protection component, main component includes outer tube, oil inlet is fixed in one end of outer tube, support piece is fixed in outer tube inner chamber center, filter material is arranged in the outer periphery side of support piece, oil outlet is fixed in one end of support piece.The utility model is passed through the protection component of being set, when hydraulic oil enters outer tube, first contact with the anti-impact top plate of being opposite oil inlet, disperse oil impact force, flow to anti-impact outside plate, after the staggered arrangement of anti-impact outside plate, anti-impact inside plate further carries out oil flow and buffering, prevent the metal impurity in oil liquid from directly impacting filter material, solve the problem that high-precision filter elements of hydraulic circulating system are easily impacted by metal impurity in oil liquid and lead to damage and shortened life.

The invention relates to the technical field of metal powder processing, in particular to aluminum alloy wear-resistant coating preparation equipment which comprises an atomizer, a tundish installed at the top of the atomizer, a collecting chamber installed at the bottom of the atomizer, a plurality of nozzles installed at the top of an inner cavity of the atomizer and a water pump for supplying water to the nozzles. An opening allowing melt to pass through is formed between the tops of the intermediate inclusion atomizers, the nozzles face the inclined lower portion and are aligned with the melt dripping in the opening in a V shape, high-pressure water jet sprayed out of the nozzles decomposes the melt into molten liquid drops, the molten liquid drops are mixed with water to form a water-powder mixture after being cooled, and opening and closing doors are rotationally installed on the atomizers. An electromagnet penetrates through and is fixedly installed in the opening and closing door, a magnetic attraction piece is fixedly installed at the end, located in the atomizer, of the electromagnet, the magnetic attraction piece synchronously generates magnetic attraction force when the electromagnet is started to generate magnetic force, a liquid receiving barrel located under the opening is installed in an inner cavity of the atomizer, and a water outlet pipe is arranged on the side, facing the magnetic attraction piece, of the liquid receiving barrel.

The utility model relates to the technical field of geotechnical engineering, and discloses a drilling rig for geotechnical engineering investigation, which comprises a fixed plate and further comprises a sliding component arranged in a shell, the dust suction assembly is arranged on the outer side of the dust suction bin and used for sucking and removing dust. After the limiting rod is pulled out of the limiting hole and the sliding rod is not limited, the spring arranged at one end of the sliding shell pushes the sliding shell to move towards the ground through accumulated resilience force, and meanwhile, the fixing frame on the outer side of the sliding shell drives the inserting cone to penetrate through the guide groove to be inserted into the soil layer, so that the device is connected with the ground, and the stability of the device during working is improved; dust generated in the drilling process is sucked in through the dust suction cover and conveyed into the dust suction bin through the conveying pipe, then the water pump pumps a water source through the filter cap at the water inlet end and conveys the water source to the spraying head through the water outlet end, spraying and dust falling are conducted on the dust sucked into the dust suction bin, the filtering pressure of the filter screen is relieved, and the risk that the filter screen is blocked is reduced.

The present invention belongs to the technical field of traditional Chinese medicine processing, and in particular, relates to a method for preparing licorice extract by processing licorice and its application. The present invention first pre-treats licorice slices with cold plasma, further adds 60-95% ethanol in a microwave reactor to microwave the licorice slices, and then repeatedly extracts them with hot reflux under the protection of an antioxidant, and finally separates and concentrates the extract to prepare an extract. In the present invention, the roasted licorice does not need to be crushed, and the active energy particles in the cold plasma are used to react with the surface of the licorice to produce surface etching, and at the same time, a large number of free radicals can be generated on the surface of the licorice to significantly increase wettability and hydrophilicity, and further cracks are generated in the microwave extraction, so that the solvent enters the interior of the licorice material and releases glycyrrhizic acid. The method of the present invention has high extraction efficiency and few impurities, and the prepared licorice extract can be widely used in various pharmaceutical preparations.

The utility model relates to a kind of car washer wastewater treatment device, effectively solve the problem that car washer sewage treatment filter screen is easy to block, long settling time;The technical solution solved includes settling unit, and settling unit includes settling cylinder, and several layers of separation cylinder are coaxially installed in settling cylinder, from inside to outside, the layer number of separation cylinder is first layer to Nth layer, the total layer number of separation cylinder is odd, the lower end of the odd layer separation cylinder is provided with water tank, the upper end of the even layer separation cylinder is provided with water tank, the upper end of separation cylinder is equipped with first water inlet pipe and first water outlet pipe, the lower end of first water inlet pipe is located in the separation cylinder of first layer, the lower end of first water outlet pipe is located between the separation cylinder of outermost layer and settling cylinder, and first water outlet pipe is connected with first water pump;The utility model is filtered by multistage settling and fine sand layer, can effectively separate impurities, in addition, by flushing sand, sand can be quickly completed, solve the problem that filter screen of traditional filtering equipment is easy to block, and filter screen needs to be frequently disassembled and cleaned.

The present application relates to a kind of layer filter specially used for flocculation, flocculation in sewage after the separation of flocculation body, with the pool body of top opening, the inside of pool body is separated to form water storage area and water storage area by partition;Water storage area is equipped with water inlet pipe, and electromagnetic valve and water inlet quantity regulating valve are arranged on water inlet pipe;Water storage area is equipped with water outlet hose, and one end of water outlet hose is water inlet, and float is fixedly connected around water inlet;The other end of water outlet hose is water outlet, and water outlet is located outside pool body and is communicated with outside;Water outlet hose is equipped with water outlet quantity regulating valve.The water storage area is transversely arranged with at least one layer of filter bag, and the filter bag is made of monofilament filter cloth;One end of filter bag is equipped with water inlet, and the water inlet is communicated with the water outlet end of water inlet main pipe through transition pipe;Partition bottom is equipped with differential pressure gauge.The present application has simple structure, low filtration pressure, fast filtration speed, clear water outlet, and is especially suitable for small-scale sewage flocculation body separation.

The utility model relates to the technical field of dust filtering equipment, and discloses a ventilation dust filtering device for mining, which comprises a filtering valve body, an air valve is fixedly mounted on one side of the filtering valve body, a motor is fixedly mounted at the bottom of the filtering valve body, and a mounting ring seat is fixedly mounted on the outer side of the filtering valve body close to the motor. A dust removal box is further fixedly mounted at the position, close to the mounting ring base, of the bottom of the filter valve body, and a flow guide cover is fixedly mounted at the position, close to the mounting ring base, in the filter valve body. Through the arrangement of the filter valve body and the air valve, the whole device can be connected between two sections of air pipes, dust in the air is filtered in cooperation with a filter screen on one side of a plurality of supporting rods in the device, and meanwhile, the supporting rods and the filter screen can be driven to rotate in cooperation with a connecting through groove, a gear and a mounting ring; and therefore, the filter screen is cleaned by means of the brush rod and the bristles on one side of the gear, and the cleaned dust enters the dust removal drawer to be collected, so that later concentrated cleaning is facilitated.

The invention discloses a method and a system for sterilizing and filtering high-viscosity liquid medicine, relates to the technical field of sterilizing and filtering, and solves the problems of low filtering efficiency, prolonged filtering time, increased filtering pressure in a high-resistance filtering process, low filtering cost and the like caused by high viscosity of the liquid medicine and high possibility of blocking a filtering membrane during filtering in the traditional sterile filtering method. The filter membrane is easy to damage. The method comprises the following steps: carrying out shearing dispersion treatment on a non-sterile high-viscosity liquid medicine; sequentially carrying out pre-filtering treatment and degerming filtering treatment on the liquid medicine subjected to shearing and dispersing treatment; a hydrophilic filter element is adopted in the pre-filtering treatment, and a hydrophilic degerming-grade filter element is adopted in the degerming filtering treatment; the aperture of the filter element subjected to pre-filtration treatment is larger than that of the filter element subjected to degerming filtration treatment; according to the invention, the viscosity of the high-viscosity liquid medicine is effectively reduced, the high-efficiency filtration of the high-viscosity liquid medicine is realized, the filtration efficiency is improved, the filter element is not easy to block, and the damage to the filter element is reduced.

The utility model relates to the technical field of pulse dust removers, in particular to a pulse dust remover powder recycling device which comprises a recycling box, a second fixing frame and a collecting box, first clamping grooves are formed in the middle of the left end and the middle of the right end of the second fixing frame, and a first handle is fixedly connected to the middle of the front end of the second fixing frame. A second filter screen is embedded in the lower portion of the inner wall face of the second fixing frame, and second clamping grooves are formed in the middle of the left end and the middle of the right end of the collecting box. According to the powder recycling device of the pulse dust collector, the first filter screen in the first fixing frame can preliminarily filter large-particle dust, the subsequent filtering effect is improved, the second filter screen further filters the dust, the dust recycling purity is improved, and the dust recycling efficiency is improved. And the second fixing frame and the collecting box are clamped in the second sleeve groove and the first sleeve groove correspondingly, through cooperation of the first clamping rod and the first clamping groove and cooperation of the second clamping rod and the second clamping groove, mounting and dismounting are convenient and fast, and recycled dust can be treated and cleaned conveniently.

The application discloses a kind of lithium-containing wastewater's resource processing device and method, lithium-containing wastewater's resource processing device includes reaction tank, stirring assembly, reaction tank is used to store lithium-containing wastewater, stirring assembly is used to stir and handle lithium-containing wastewater in reaction tank, stirring assembly includes mounting bracket, mounting bracket is rotatably connected with stirring main rod, stirring main rod is provided with several stirring branch rods, first cavity is opened in stirring main rod, second cavity is opened in stirring branch rod, first cavity and second cavity are communicated, first cavity, second cavity can be used to flow heat source, stirring assembly further includes dosing line, dosing line is set on stirring main rod.Compared with prior art, a kind of lithium-containing wastewater's resource processing device of the application is conducive to extracting heavy metal ions in lithium-containing wastewater, reduces the filtration pressure of filter device, thereby reducing the cleaning and maintenance frequency of filter device, reduces the cost of lithium-containing wastewater's resource processing.

The present application discloses a gas-tight sampling device, which belongs to the field of gas sampling technology, and includes a sampling joint, a sleeve, a sampling bottle, an operating rod, a connecting structure, a blocking plate, a reinforcement structure, an opening and closing structure, and a triggering structure. The opening end of the sleeve is detachably connected to the sampling joint through a connecting structure, the blocking plate is used to block the sampling joint, and the reinforcement structure is used to fix the blocking plate and the sampling joint; the sampling bottle has a coaxially arranged annular partition, and an annular piston body slides in the piston cavity; the operating rod is used to release the fixing of the blocking plate by the reinforcement structure through the opening and closing structure, and the operating rod is used to drive each piston body to slide in turn through the triggering structure. The present application can realize sampling of the sampling bottle directly in the production environment, while taking into account the airtightness of the production environment before and after sampling, thereby improving the accuracy of sampling detection.

The invention discloses an assembly type tunnel construction filtering type dust removal device and relates to the technical field of filtering type dust removal. Moving blocks are slidably arranged at the top of the inner side of a limiting groove, an arc-shaped rack is connected between every two adjacent moving blocks through screws, a filtering box is connected to the bottom of a lifting frame, and a hole is formed in one end of the filtering box and connected to one end of an axial flow fan; most of water mist adsorbing dust is adsorbed on the inner wall of the spiral pipe under the guidance of the spiral pipe, the water mist is quickly condensed into water drops under the action of temperature difference, most of the water mist flows through the interior of the spiral pipe and is condensed into water drops to be discharged under the action of gravity, preliminary filtration is achieved, and the dust removal efficiency is improved. The filtering pressure of the filter element is reduced, the continuous working time of the equipment is longer, the movable motor drives the movable block to move back and forth in the limiting groove, the dust collection range is expanded, and the dust removal speed is increased.

The utility model relates to a sewage circulating filtering device which comprises a filtering box, a sand storage box is arranged on the lower end face of the filtering box, the sides, close to each other, of the sand storage box and the filtering box are open, a separation barrel is arranged in the filtering box and is vertically and fixedly arranged in the filtering box, and a filtering barrel is arranged between the sand storage box and the separation barrel; the lower end face of the filter cartridge is fixedly connected to the sand storage box, the space between the filter cartridge and the sand storage box is filled with filter sand, the upper end face of the filter box is provided with a water inlet and a water outlet which are communicated with the filter box, the water outlet and the water inlet are formed in the inner side and the outer side of the partition layer respectively, and a fine filter screen is arranged in the partition cartridge. The sewage treatment device has the effect of efficiently and stably filtering sewage.

The invention relates to a method for efficiently removing refractory organic pollutants or new pollutants in water, which comprises the following steps: at normal temperature and normal pressure, pretreating wastewater containing the refractory organic pollutants or new pollutants to remove suspended matters, and adding acid or alkali into an adjusting tank to adjust the pH value of the wastewater to 4-10; then conveying the wastewater into a continuous flow membrane chemical reactor through a lifting pump, and respectively adding an agent A and an agent B in the process of conveying the wastewater into the continuous flow membrane chemical reactor; the hydraulic retention time of the wastewater in the continuous flow membrane chemical reactor is 1-4H, and the agent A generates oxyradical under the action of the agent B and the continuous flow membrane chemical reactor; refractory organic pollutants or new pollutants in the wastewater are mineralized into carbon dioxide and water or biochemical micromolecular organic matters under the action of oxyradicals, the membrane assembly forms negative pressure under the action of the water producing pump, and the treated wastewater is discharged after being subjected to negative pressure filtration by the membrane assembly, so that the wastewater treatment is completed.

The utility model discloses a cooling water filtering device and a hydraulic station system. The cooling water filtering device comprises a filtering barrel, a filtering unit for filtering, and a backwashing structure which is arranged on the filtering barrel and is used for cleaning the filtering unit, a filtering water inlet is formed in the upper part of the filtering barrel, a filtering water outlet is formed in the lower part of the filtering barrel, an inner cavity, between the filtering water inlet and the filtering water outlet, of the filtering barrel is sequentially and hermetically connected with a first partition plate and a second partition plate from top to bottom, a first mounting hole is formed in the first partition plate, and a second mounting hole is formed in the second partition plate; the filter unit comprises a first-stage filter mesh bag and a second-stage filter mesh bag; the first-stage filter mesh bag is arranged in the first mounting hole in a penetrating manner and is in sealed connection with the first partition plate; the second-stage filter mesh bag is arranged in the second mounting hole in a penetrating manner and is in sealed connection with the second partition plate; the aperture of a filter hole of the first-stage filter mesh bag is larger than that of a filter hole of the second-stage filter mesh bag. The device can filter out particle impurities with different sizes in a water body in a grading manner, improves the filtering efficiency, can perform backwashing self-cleaning, and is time-saving and labor-saving.

The utility model relates to the field of agricultural wastewater, in particular to a recycling and purifying device for agricultural wastewater, and aims to solve the technical problems that when the recycling and purifying device is used for purifying the agricultural wastewater, a filtering structure of the recycling and purifying device is easily blocked by garbage in the agricultural wastewater, and the wastewater is difficult to disinfect and sterilize well. According to the technical scheme, the recycling and purifying device for the agricultural wastewater comprises a filter element, a supporting assembly, a tank body assembly, a collecting assembly, a filtering assembly and a purifying assembly; according to the agricultural wastewater treatment device, the motor drives the filter screen to adsorb and collect garbage and impurities in agricultural wastewater along the inner wall of the bearing tank, so that the device is prevented from being blocked by the garbage or the impurities, and the agricultural wastewater is stirred to react with the purification rod, so that the agricultural wastewater is disinfected and sterilized; the problems that when the recycling and purifying device is used for purifying agricultural wastewater, a filtering structure is easily blocked by garbage in the agricultural wastewater, and the wastewater is difficult to disinfect and sterilize well are solved.

The utility model discloses a back fish tank mini fish closestool relates to back fish tank technical field. The back fish tank mini fish closestool, including back fish tank body, the rearing cavity and processing cavity of setting in the inside of back fish tank body, the inside of processing cavity is provided with fish closestool body, and fish is active in the rearing cavity. The device sets up the fish closestool body and filter screen pipe of combination formula in the back fish tank, makes under the spacing of extraction channel, and the dirty water of fish excrement excrement is pumped to the inside of filter screen pipe, and the fish closestool body is collected in the inside of fish closestool body finally under the fish excrement of filter screen pipe interception, makes the effective reduction of dry and wet separation filter piece's filtration pressure, and combines screw joint and fixed screw rod etc. parts, can complete fish closestool body and the convenient split of filter screen pipe and back fish tank and fish closestool body between, the cleaning maintenance of fish closestool body and filter screen pipe is convenient.