110 results about "Treatment pond" patented technology

This invention discloses a method and system for purifying and treating release agents, belonging to the field of release agent purification and treatment. The treatment method is as follows: S1, raw release agent wastewater is introduced into a treatment tank for hydraulic cavitation treatment, while ozone is simultaneously introduced. Floating oil, waste wax, and solid particulate matter in the wastewater float to the surface of the treatment tank and overflow into a scum tank; S2, after cavitation treatment, when there is very little scum on the surface of the treatment tank, the treated liquid in the treatment tank is introduced into a media filter for further filtration. The filtered clean liquid is then transported to a supply tank; S3, when the media packing adsorbs a thick wax layer, the pressure in the filter tank reaches a threshold. Water from the circulating water tank is introduced into the filter tank to backwash the wax layer. The water containing wax after backwashing enters the circulating water tank; S4, when the wax content in the circulating water in the circulating water tank reaches a threshold, a low-temperature steel roller is used to cool the water, causing wax to precipitate onto the steel roller. The wax is scraped off and collected, and the water is reused. This invention uses hydraulic cavitation to break out and remove oil and wax from waste liquid, and further removes residual waste wax from the treated liquid through media filtration, ensuring the cleanliness of the recycled mold release agent liquid.

The application discloses a membrane biological reaction sewage treatment device with sludge recovery and reduction structure and relates to the technical field of membrane biological reaction sewage treatment.The device comprises a treatment pool body, a membrane reaction group arranged on the right side in the treatment pool body, a separation mechanism arranged on the left side in the treatment pool body, a separation partition plate, a separation sieve plate fixedly arranged on the left side in the middle of the separation partition plate, a flow transverse groove arranged in the lower end of the separation partition plate, and a sedimentation mechanism arranged on the middle of the treatment pool body.The left side area of the treatment pool body is isolated by the separation partition plate, the flow transverse groove is arranged in the lower end of the separation partition plate, and the sedimentation mechanism is arranged on the middle of the treatment pool body.The membrane biological reaction sewage treatment device with sludge recovery and reduction structure can separate the water-containing sludge by the treatment pool body, reduce the load of the treatment pool body, and uniformly distribute the medicament by the middle spreading filter box, so that the sewage is efficiently treated by overflowing into the membrane reaction group, and the efficiency of environmental protection treatment is improved.

The application relates to the technical field of industrial wastewater treatment, and discloses an aging resin recovery wastewater treatment device and method, which comprises a treatment pool body, a stirring shaft, stirring blades, a position adjusting assembly, a floating removal tank, sliding limiting blocks, a backflow prevention baffle, a plugging block, a bottom position adjusting seat, position adjusting matching blocks and a first filter screen. The treatment pool body comprises an upper circular tank body and a lower rectangular box body which are arranged in a vertical mode and are in communication with each other. The floating removal tank is arranged in the upper circular tank body, so that the suspended impurities on the liquid surface can be recycled. The treatment pool body comprises the upper circular tank body, so that the floating removal tank can fully recycle the suspended impurities on the liquid surface during rotation. The position adjusting assembly comprises a position adjusting rod which is arranged in a sliding mode and a rotating mode, so that the floating removal tank and the stirring shaft can be connected, and the suspended impurities can be recycled and stored conveniently.

A kind of wastewater treatment automatic filtering salvage mechanism, including support frame, rotary assembly is equipped on the support frame, adjusting assembly is equipped on the support frame;The utility model provides a kind of wastewater treatment automatic filtering salvage mechanism, and salvage frame can be rotated to the automatic salvage of floating garbage in wastewater treatment pond by rotary assembly, without manual operation to the salvage of floating garbage, solve the problem of the existing to the salvage of suspended garbage, mostly need to manually hold salvage device to the salvage of garbage, it is time-consuming and laborious to use, and the problem of low work efficiency.

The utility model belongs to sewage treatment technical field, concretely relates to an intelligent sewage treatment equipment, including treatment pond and monitor, the first screen and the second screen of first hydraulic cylinder control are slidably assembled in treatment pond, the upper side of first screen is equipped with a plurality of circular ring fixedly, the upper side of treatment pond is slidably assembled with lifting plate, the lower side of lifting plate is equipped with the cross bar fixedly matched with a plurality of circular ring, the upper side of treatment pond is slidably assembled with the third screen of second hydraulic cylinder control, the upper side of treatment pond is equipped with the movement subassembly matched with first screen and the second screen, and the rear side of treatment pond is equipped with cleaning spare, through monitor, the garbage situation under the first screen and the second screen are blocked is monitored in real time, when needing cleaning, first hydraulic cylinder drives first screen and the second screen to go up through lifting plate, and the cleaning of cooperation movement subassembly and cleaning spare is carried out, and second hydraulic cylinder drives third screen to drop down, to guarantee the continuous operation of treatment pond, ensure the continuous operation of treatment pond.

The utility model relates to garbage treatment technical field, concretely relates to a novel organic waste treatment pool with self -cleaning, including treatment pool body, one side fixedly connected with dosing pipe of treatment pool body, both sides surface fixedly connected with electric telescopic rail of treatment pool body, the output fixedly connected with pressure plate of electric telescopic rail, the surface of treatment pool body is provided with adjusting structure, the inside slide connection of treatment pool body has the placing frame, the bottom of placing frame is provided with cleaning structure. The utility model sets up adjusting structure and placing frame, can adjust the height of placing frame through adjusting structure, the connection between placing frame and adjusting structure is simple, conveniently takes out placing frame from treatment pool body and washes replacement, sets up dosing pipe and cleaning structure, can clean the inner wall of treatment pool body, prevents organic waste liquid from adhering on the inner wall of treatment pool body and causes the influence to subsequent use.

The application provides a quick thawing device for pet feed production, which comprises a support frame, a treatment pool containing water is fixedly connected to the support frame, two electric heating pipes symmetrically arranged are arranged on the bottom wall in the treatment pool, a mounting plate is fixedly connected to the upper surface of the support frame, a first driving motor is fixedly installed on one side surface of the mounting plate, a driving shaft is fixedly connected to the output end of the first driving motor, a first connecting gear is fixedly connected to the end, away from the first driving motor, of the driving shaft, a connecting shaft is horizontally arranged on the support frame, a second connecting gear meshing with the first connecting gear is fixedly sleeved on the connecting shaft, two adjusting plates are fixedly sleeved on the connecting shaft, guide rods are fixedly connected to the upper surface of the support frame near four corners, and a connecting frame is slidably sleeved on the four guide rods; the application can realize quick and uniform thawing of raw materials, has a short time consumption, further improves the thawing efficiency, and is beneficial to actual use.

The present invention addresses the problem of providing a method for starting up an anaerobic treatment tank that utilizes a carrier, the method making it possible to suppress generation of a short-circuit flow in an anaerobic treatment tank and to secure fluidity in the anaerobic treatment tank during the start-up of the anaerobic treatment tank, and also making it possible to improve the treatment efficiency after the start-up.　In order to solve the problem, the present invention provides a method for starting up an anaerobic treatment tank, the method including: a first carrier charging step for putting a carrier into an anaerobic treatment tank; a sludge charging step for putting sludge into the anaerobic treatment tank after the first carrier charging step; and a second carrier charging step for additionally putting a carrier into the anaerobic treatment tank after the sludge charging step.　According to the present invention, the generation of a short-circuit flow in an anaerobic treatment tank is suppressed by charging the anaerobic treatment tank with a carrier and a substance involved in adhesion of microorganisms in a predetermined order, so that fluidity in the anaerobic treatment tank is ensured and the treatment efficiency after the start-up can be improved.

The application discloses a kind of remediation devices for groundwater pollution treatment, it is related to the technical field of groundwater pollution treatment, it includes support pedestal, the upper surface of support pedestal is fixedly installed with support column, support column is equipped with the repair treatment pool for repairing groundwater, first water pump is equipped on repair treatment pool, the output of first water pump is connected with water outlet pipe, the water outlet of water outlet pipe extends to the inside of repair treatment pool, the input of first water pump is connected with water inlet pipe, the water inlet of water inlet pipe extends to groundwater and is connected with water collector;Water collector includes balance disc, sealing sleeve is equipped on the bottom center position of balance disc, connecting sleeve is equipped in sealing sleeve, the water inlet of water inlet pipe penetrates balance disc, and is connected with connecting sleeve and is communicated.This application has the effect of effectively gathering and guiding groundwater from different directions, thereby improving water collection efficiency.

The present invention provides an aerobic treatment tank capable of increasing the processing capacity of aerobic treatment, and a wastewater treatment apparatus equipped with this aerobic treatment tank. [Solution] The aerobic treatment tank 1 is configured to perform aerobic treatment on the water to be treated while allowing it to flow down along the bottom plate 2. The aerobic treatment tank 1 has a bottom plate 2 and side plates 3 erected around the bottom plate 2. The side plates 3 have ventilation holes 31 which include an outer opening 311 that opens to the external space of the aerobic treatment tank 1, an inner opening 313 that opens to the internal space 11 of the aerobic treatment tank 1, and a connecting part that connects the outer opening 311 and the inner opening 313.

The utility model discloses a sludge environmental protection treatment pool with scraper mechanism belongs to sludge environmental protection treatment pool technical field, including pool body, both ends of pool body all are provided with the mechanism of discharging mud, and the both sides of pool body top are provided with the material scraping mechanism respectively. In the utility model, by setting up and slide bar on the both sides of pool body top, and setting up the upper moving frame on the slide bar and the shuttle screw rod, and setting up the upper side scraper and the triangle scraper below the moving frame, through servo motor drive the shuttle screw rod rotation, through the thread cooperation between the shuttle screw rod and the moving frame drive the moving frame, side scraper and triangle scraper reciprocating movement in the inner chamber of pool body, utilize side scraper to scrape the sludge that adheres on the inner chamber lateral wall of pool body, utilize triangle scraper to push the sludge at the bottom of the inner chamber of pool body, realized to the function of two -way pushing to sludge, avoided the influence that sludge brought to side scraper and triangle scraper drive arrangement simultaneously.

The application relates to the technical field of leachate treatment, in particular to a multi-concentration leachate full-quantization modular treatment system, which comprises pretreatment pools, flow meters, membrane reduction devices, evaporation-drying integrated machines and detection devices, the pretreatment pools are provided with a plurality of pretreatment pools, the plurality of pretreatment pools are communicated, the pretreatment pools are each provided with a water pump, the water pump is used for realizing the transfer of multi-concentration leachate between the plurality of pretreatment pools, the flow meter is communicated with the terminal pretreatment pool, the membrane reduction device is communicated with the flow meter, the membrane reduction device is internally provided with a material separation membrane and a sea desalination membrane, the evaporation-drying integrated machine is connected with the output end of the membrane reduction device, the evaporation-drying integrated machine is used for evaporating and drying the multi-concentration leachate, and the detection device is used for water quality and odor monitoring; the application has the advantages of being suitable for multi-concentration leachate, realizing intelligent control and full quantization.

The application discloses a sewage purification device based on an AOA process and particularly relates to the technical field of sewage purification, comprising a treatment tank arranged on the ground and used for treating sewage, two auxiliary components arranged on the upper part of the inner surface of the treatment tank, a stirring component one arranged below the auxiliary component on the rear side, a mixing component arranged on the middle part of the inner surface of the treatment tank, and a stirring component two arranged on the front side of the inner surface of the treatment tank. The application forms a nearly sealed anaerobic reaction space through cooperation of the intercepting plate one and the intercepting plate two, realizes a low-oxygen environment required by anaerobic reaction, avoids penetration of external oxygen to destroy anaerobic conditions, realizes continuous air suction and gas collection of the anaerobic zone and the anoxic zone through cooperation of the sliding plate, the vertical plate and the air bag, reduces the oxygen content above the anaerobic zone to guarantee reaction conditions, recycles methane generated by the anaerobic reaction, reduces nitrogen residue in the anoxic zone, and solves the problems of methane leakage pollution and sludge floating caused by nitrogen adhesion to sludge.

The utility model discloses a kind of neutralization reaction systems of handling acidic waste liquid, including neutralization reaction kettle, neutralization liquid treatment pool, waste gas treatment device and heat exchanger, and the neutralization liquid output port pipe line of neutralization reaction kettle is connected to neutralization liquid treatment pool, and waste gas output port pipe line is connected to waste gas treatment device, and temporary storage bin is fixedly installed on the top of neutralization reaction kettle, and the top of neutralization reaction kettle is equipped with feeding port, and quantitative feeder is installed on the connecting pipe of temporary storage bin and feeding port, feeding control assembly is installed on the top of neutralization reaction kettle, and the opening of quantitative feeder is chain controlled by feeding control assembly, and coil pipe is installed on the outer wall of neutralization reaction kettle, and coil pipe pipe line is connected to heat exchanger, the utility model designs and installs quantitative feeder to solve the quantitative feeding problem of reaction material, and the utility model can effectively control the intensity of neutralization treatment reaction, so that waste liquid can be safely carried out under temperature control.

This utility model provides a graded sewage treatment device, belonging to the field of sewage treatment technology. The graded sewage treatment device includes a sewage treatment machine and a treatment protection mechanism. The sewage treatment machine has a treatment tank inside. A connector is installed on the top left side of the sewage treatment machine. A protective frame is movably connected to both sides of the connector. A protective pad is fixedly connected to the inner side of the protective frame. A protective cover is movably connected to the top of the protective frame, and a protective plate is movably connected inside the protective cover. By setting up the treatment protection mechanism, a clamping and protective medium can be formed between the connector and the external sewage pipeline, allowing the user to protect the connection between the connector and the external sewage pipeline. This prevents the connector from being affected by external rainwater and other contaminants during operation, avoiding corrosion and rust that could lead to sewage leakage. Therefore, the protective performance and stability of the sewage treatment connection between the sewage treatment machine and the connector are improved.

This disclosure relates to the technical field of oil-water separation devices. One embodiment of this disclosure provides an oil-water separation device, which includes: a treatment tank and a pair of inlet and outlet pipes, the inlet and outlet pipes being arranged on both sides of the treatment tank; a dosing component being arranged at the top of the treatment tank; an aeration pipe being arranged at the bottom of the treatment tank; a separation and cleaning component being arranged on the treatment tank; a pair of connecting plates for the separation and cleaning component, both of which are arranged at the top ends of the treatment tank; a guide rod being arranged between the pair of opposing connecting plates; a drive screw being rotatably connected between the pair of connecting plates; a collection tank being provided on one side of the treatment tank; and a discharge pipe being arranged outside the treatment tank, the discharge pipe being connected to the inside of the collection tank. This technical solution solves the technical problem in the prior art where the floating oil layer mixes with impurities, making it difficult for traditional devices to completely remove these complex oil layers, resulting in incomplete oil layer removal and residual oil continuing to contaminate the treated water.

The present application relates to wastewater treatment technical field, specifically to a kind of wastewater treatment equipment and process for tetramethylammonium hydroxide production, including the treatment pool with gas main in pool, the top of gas main is equipped with aerator;Aerator includes base pipe, the top of base pipe is equipped with the rectifier plate that is hollow inside and is communicated with base pipe, both board surfaces of rectifier plate are equipped with rectifier hole communicated with the cavity inside rectifier plate;The top of base pipe is also covered with the aeration membrane cover that simultaneously covers rectifier plate entirely, aeration membrane cover and base pipe form aeration chamber communicated with rectifier hole on rectifier plate, the surface of aeration membrane cover is equipped with aeration hole communicated with aeration chamber;Rectifier plate is supported up from inside aeration membrane cover aeration membrane cover, and aeration membrane cover is divided into upper aeration zone and lower aeration zone, when gas is sprayed through aeration hole at lower aeration zone, it will float up, and it will drive aeration membrane cover vibration to carry out the blockage cleaning of aeration hole, and it will move to the upper aeration zone above to carry out aeration compensation.

This invention relates to the field of degradation treatment technology, and specifically discloses a microbial degradation treatment device for kitchen waste. The extrusion assembly includes a first telescopic rod, the movable end of which is fixedly connected to a fixed frame. The top of the fixed frame is fixedly connected to the fixed end of a first spring rod via a bracket. The movable end of the first spring rod is fixedly connected to a cover plate. An extrusion plate is fixedly connected to the side of the fixed frame. The extrusion plate includes a lower extrusion plate, the top of which is fixedly connected to an upper extrusion plate. A guide groove is formed on the side of the upper extrusion plate. The side of the lower extrusion plate is fixedly connected to the side of the fixed frame. The bottom of the cover plate contacts the top of the upper extrusion plate. The side of the lower extrusion plate contacts the inner wall of the treatment tank. Kitchen waste is poured into the treatment tank along the top. This microbial degradation treatment device for kitchen waste achieves solid-liquid separation and facilitates waste discharge.

This utility model discloses a flotation phosphorus removal wastewater treatment device, including a treatment tank and an anti-sludge structure. The treatment tank has an outlet for effluent discharge. The anti-sludge structure covers the treatment tank on one side of the outlet and includes a filter screen that slides longitudinally on one side of the outlet. The filter screen has a rectangular frame around its periphery for contacting the filter screen with the treatment tank. This utility model not only connects a filter screen at the outlet to block larger debris, but also includes a drive source that drives the filter screen to slide up and down in the treatment tank, and a connecting rod connecting the drive source and the filter screen. During use, the drive source drives the connecting rod to move the filter screen up and down, blocking the outlet while reducing sludge buildup at the filter screen. Furthermore, the treatment tank includes a sliding groove for the sliding block and a cleaning brush for cleaning the filter screen, further cleaning the filter screen and reducing maintenance difficulty.

This invention provides acidic industrial wastewater treatment equipment and a wastewater purification agent preparation and purification process, relating to the field of wastewater treatment technology. The equipment includes a treatment tank, a wetting mechanism, a transmission mechanism, and a dosing mechanism. The wetting mechanism includes a mesh plate disposed inside the treatment tank. Connecting frames are fixed to both sides of the top of the mesh plate, and three guide rods are fixed to the top of each of the two connecting frames. A sealing plate is disposed on the top of the treatment tank, and six guide seats are fixed inside the sealing plate. The six guide rods are slidably connected to the interior of the six guide seats. This solution ultimately achieves the effect of continuously rotating a rotating disc and using the reciprocating motion of the mesh plate to force the floating purification agent into the water, breaking the air film on the surface of the purification agent and helping its internal pores to quickly fill with water. This allows the purification agent to rapidly change from a floating state to a wetted state, fundamentally solving the problem of the purification agent floating and improving the neutralization treatment efficiency of acidic industrial wastewater.

The utility model discloses a water treatment pool. The water treatment pool comprises: a pool body, the pool body has a water treatment cavity; a diving device, the diving device is arranged in the water treatment cavity; and a maintenance auxiliary device, the maintenance auxiliary device is arranged in the water treatment cavity in a detachable manner, a maintenance space is formed between the maintenance auxiliary device and the wall surface of the water treatment cavity, or the maintenance auxiliary device has the maintenance space, and the diving device can be located in the maintenance space. The water treatment pool has the advantages of long continuous operation time, stable operation, low difficulty in maintenance and replacement of the diving device, and high maintenance and replacement efficiency.

A quantitative dosing method using sensor detection. At present, when the powdered flocculating agent is dosed, the dosing amount is operated according to the experience of employees, and the weight of the flocculating agent cannot be accurately dosed. The present application comprises the following steps: when it is necessary to add the powder to the treatment tank to promote sewage treatment, the internal movable installation of the powder hopper is provided with a discharging auger assembly, at this time, under the action of the discharging auger assembly, the powder enters the surface of the carrier plate through the discharging cylinder; the weight is weighed by the gravity sensor, when the gravity value on the display screen of the control panel reaches the expected value, the discharging auger assembly stops working; the electric push rod switch is started, the electric push rod makes the supporting seat retract, the discharge plate is inclined, and the powder on the discharge plate enters the inside of the sewage treatment tank through the dosing port, and the quantitative dosing work of the sewage treatment tank is completed. The present application is used for quantitative dosing.

The application provides a kind of oxygen-enriched membrane reactor and membrane bioreactor coupling sewage treatment system, relating to domestic sewage technical field, including: coupling treatment pool, clear water pool, sludge storage pool, equipment room, guide wall, sewage inlet pipe, air supply fan, oxygen-enriched membrane reactor and inorganic membrane bioreactor;The upper portion of the coupling treatment pool is the equipment room, and the air supply fan and the control system are in the equipment room.The application integrates the oxygen-enriched membrane reactor and the inorganic membrane bioreactor by modularization reinforcement treatment, forms the aerobic zone, the facultative zone and the anaerobic zone in the oxygen-enriched membrane reactor due to its unique structure and high oxygen utilization efficiency, is used for the nitrification of ammonia nitrogen and the removal of most total nitrogen, forms simultaneous nitrification and denitrification reaction in the reactor, further strengthens the removal of pollutants in water in the inorganic membrane bioreactor, and realizes the separation of sludge and water, so that the effluent quality of the sewage treatment system is stable and up to standard under the condition of ensuring certain fluctuation of water quantity.

This utility model belongs to the field of wastewater treatment technology, and particularly relates to a wastewater treatment device for dyeing processes. It includes a treatment tank, and further comprises: two fixed rods fixedly connected to the inner wall of the treatment tank; two sliders slidably connected between the two fixed rods; multiple wheels fixedly connected within the two sliders, with each wheel located on the top surface of the two fixed rods and in contact with them; and two stirring rods rotatably connected to the bottom surface of the sliders; two drive components located within the two sliders and used to drive the corresponding stirring rods to rotate; and a fixed block fixedly connected to the top surface of the treatment tank, with a movable groove communicating with the outside. This utility model solves the problem that in the use of wastewater treatment devices for dyeing processes, the stirring mechanism can only stir in one place, and the stirring position cannot be adjusted, resulting in low stirring efficiency.

The utility model provides a sewage treatment tank convenient to clean relates to sewage treatment tank technical field, a sewage treatment tank convenient to clean, including the treatment tank, the inside of treatment tank is equipped with the cleaning mechanism who cleans treatment tank inner wall and inner bottom wall, the cleaning mechanism includes the movable frame who slides in the inside of treatment tank, the outer surface fixed connection of movable frame has the fixed scraper who cleans and scrapes treatment tank inner wall and inner bottom wall. Through the control movable frame in the inside of treatment pool horizontal sliding, through fixed scraper to the sludge on treatment tank inner wall and inner bottom wall is scraped, lightens the cleaning burden of operator later period, and under the action of lifting mechanism, drives movable sleeve to reciprocating lifting sliding, through the broken nail of movable sleeve one end to the mud layer of treatment tank inner bottom wall deposition is broken, the normal scraping of fixed scraper is convenient to prevent the obstruction of big mud block, has improved the cleaning effect to treatment tank.

This technology enables more efficient filtration operation of treatment tanks. [Solution] The filtration cassette installed in the treatment tank comprises a housing, an inlet provided at the bottom of the housing through which the water to be treated flows in, an outlet provided in the housing through which the water to be treated flows out, a filter material housed inside the housing and forming a filtration layer between the inlet and the outlet, and a lifting member installed to be able to move up and down within a range including a first position that opens the inlet and a second position that covers the inlet. When the lifting member is positioned in the first position, a first flow path is formed between the lifting member and the housing to guide the water to be treated to the filtration layer. When the lifting member is positioned in the second position, a second flow path is formed between the lifting member, the housing, or the lifting member and the housing to guide the water to be treated to the outside of the housing.

The utility model discloses a water distributor belongs to sewage treatment equipment technical field, specifically relates to a kind of sewage treatment equipment self-flow water distribution water distributor, it include: water distribution tank, water distribution pipe, water distribution bucket and counterweight;The water inlet of water distribution pipe is connected with the water outlet of water distribution tank, the water distribution bucket is movably installed in water distribution tank, and the counterweight is fixedly installed on water distribution bucket;The utility model water distributor can realize the uniform distribution of water flow, ensure that every drop of water can fully play its role, to improve wastewater treatment efficiency, promote the full contact of wastewater and sludge, to improve the efficiency and quality of wastewater treatment. Water distributor distributes water volume by certain rule, ensure that wastewater can be evenly distributed in treatment pond, so that wastewater and sludge can be fully mixed, to accelerate biological reaction process, improve treatment effect.

The utility model relates to an irrigation water pretreatment pool for lemon planting, including treatment pool, two symmetrical partition plates are fixedly connected in treatment pool, arc bottom is fixedly connected in the bottom end in treatment pool, two symmetrical connecting plates are fixedly connected to the upper end of treatment pool, the outer end of rear side is equipped with motor, the first rotation axis is rotatably connected between two connecting plates, the first rotation axis is connected with the power output end of motor, the filter screen is fixedly connected to the bottom end of first rotation axis, the upper end of partition plate in right side is chiseled with the sliding slot, the sliding block is slidably connected in the sliding slot, the upper end of sliding block is equipped with the U shape frame, the second rotation axis is fixedly connected between the inner wall of U shape frame, the sliding rod is equipped with the sliding rod outside second rotation axis, the strip hole that matches with second rotation axis is chiseled to the outer end of sliding rod, can realize the sandstone material of cleaning on the filter screen, improve the filtering effect of filter screen, also can improve the service life of filter screen.

The present application belongs to the field of power plant sewage treatment, and particularly relates to a power plant water resource pollution cascade treatment device achieving near-zero emission, comprising: a cascade treatment pool main body, the top of which is fixedly connected with a fence for protection; a water inlet conversion assembly installed at the water inlet area of the cascade treatment pool main body, the water inlet conversion assembly comprising a multilayer variable-aperture curved surface energy dissipation cover; through the structural design of the water inlet conversion assembly, active conversion and spatial redistribution of the kinetic energy of the inlet water are achieved. Specifically, the multilayer variable-aperture curved surface energy dissipation cover adopts a three-layer nested structure of an inner cover, a middle cover and an outer cover, variable-diameter through holes are arranged on the middle cover in a spiral arrangement, and the hole diameter gradually increases from the center to the edge, so that the water flow forms a rotational velocity gradient field with fast center and slow edge when passing through, thereby constructing a dynamic rotating water curtain wall in the water inlet area and constraining the kinetic energy of the main water flow in the center area of the energy dissipation cover.

The utility model belongs to sewage treatment technical field, specifically is a kind of sludge discharge device for sewage treatment, including bottom plate;The top of bottom plate is fixedly installed with support leg, the top of support leg is fixedly installed with treatment pond, the bottom of treatment pond inner wall is provided with rotating mechanism, one side of treatment pond inner wall is provided with guide mechanism;The surface of treatment pond is close to the side of inclined plate and is provided with material conveying mechanism, by the setting of rotary disc, connecting block, conveying inclined plate, speed reducer, inclined plate, silica gel scraper and intercepting plate, the cooperation of rotary disc, connecting block and speed reducer can be by rotation to slowly transport silt, conveying inclined plate can prevent silt from appearing violent shaking and dispersion in the process of rotation by its inclination angle, the cooperation of inclined plate, silica gel scraper and intercepting plate can constantly scrape the silt on its surface in the process of rotary disc rotation, and by the inclination angle of itself, to transport silt to outside.