29results about How to "Evenly aerated" patented technology

The utility model discloses an arsenic-containing wastewater treatment device, which belongs to the technical field of wastewater treatment and comprises a threaded sleeve, an outer cylinder, an exhaust pipe and a water dispersing pipe, the threaded sleeve vertically penetrates and is fixed at the center of the top of a treatment tank, and an external thread is arranged at the corresponding position of the outer cylinder. The outer barrel is in threaded connection with the interior of the threaded sleeve through the external threads, and the lead angle of the external threads and the threaded sleeve is larger than the friction angle of the external threads and the threaded sleeve. Through the matching design of the sleeve, the packing, the water inlet channel and the water dispersing pipe, arsenic-containing wastewater enters the inner cavity of the sleeve, enters the water dispersing pipe through the water inlet channel and is discharged from the water discharging pipe to enter sludge, so that the arsenic-containing wastewater is in contact with the sludge and is purified, and meanwhile, the arsenic-containing wastewater is purified under the driving of the outer barrel body which is lifted and rotated. The movable area of the water dispersing pipe is larger, the water dispersing pipe can serve as a stirring rod for lifting and rotating motion, arsenic-containing waste water is dispersed and discharged into sludge, and the purification efficiency of the sludge on the arsenic-containing waste water is improved.

This invention provides a multi-stage, multi-angle, rapid diffusion oxygen dissolving three-dimensional non-clogging microbubble aerator. An air inlet pipe and an air pipe are sequentially connected along the air inlet direction. A rapid microbubble cutting and diffusion oxygen dissolving unit is fitted outside the air inlet pipe. An inner cylinder and an outer cylinder are sequentially fitted outside the air pipe from the inside to the outside. The inner cylinder has a first inner cylinder section, a second inner cylinder section, and a third inner cylinder section sequentially along the air inlet direction. A medium-sized bubble cutting and diffusion oxygen dissolving unit is installed on the outer wall of the first inner cylinder section, a large bubble cutting and diffusion oxygen dissolving unit is installed on the outer wall of the second inner cylinder section, and an air guiding unit is installed on the outer wall of the third inner cylinder section. An air diffuser unit is installed at the air outlet of the air pipe. This multi-stage, multi-angle, rapid diffusion oxygen dissolving three-dimensional non-clogging microbubble aerator effectively cuts air into microbubbles, effectively solving the problems of clogging and short lifespan of traditional aerators after long-term use, and is suitable for aerobic aeration treatment.

The utility model discloses a novel tubular aerator belongs to tubular aerator technical field, this novel tubular aerator includes the guide pipe, fixed installation on the guide pipe fixed cylinder, set in the fixed cylinder top's aeration pipe, through the cooperation of above each device, through the setting of rotating mechanism, the sleeve lifts in the cylinder, compression spring, promotes the synchronous drop of connecting cylinder, and the top of connecting cylinder is communicated with aeration pipe to drive aeration pipe to drop, when the bottom of connecting cylinder touches the fixed column, the sleeve continues to drop, and the protruding block moves along the guide rail, makes connecting cylinder rotate ninety degrees, and aeration pipe also rotates ninety degrees, in the process of aeration pipe lifting, can realize the rotation function to reach the effect of all -round aeration, has guaranteed the uniform aeration of aerator, has effectively promoted the aeration efficiency.

This utility model relates to the field of water treatment technology and discloses a uniform aeration device for a denitrification filter. It includes a main aeration pipe with an air inlet at its front and several branch aeration pipes evenly distributed at its rear. The air inlet, main aeration pipe, and branch aeration pipes are all made of stainless steel. A flange is installed on the outer side of the front end of the air inlet. The air inlet and branch aeration pipes are fixed to the main aeration pipe by welding, and both ends of the main aeration pipe are sealed with cover plates. This utility model has a simple structure and is easy to install. By arranging the main aeration pipe inside the denitrification filter and inserting the branch aeration pipes into the backwash air holes of each row of S-shaped filter bricks in the denitrification filter, the gas in the branch aeration pipes is evenly distributed. This assists the S-shaped filter bricks in uniformly aerating the denitrification filter, ensuring the uniformity of gas distribution throughout the filter and improving the efficiency of gas utilization.

The utility model provides a box type treatment device for domestic sewage, which is characterized by comprising a treatment structure, a filtering structure and a purification structure, the filtering structure is arranged above the treatment structure, the treatment structure is connected with the filtering structure in a welding manner, the purification structure is arranged on one side of the treatment structure, and the purification structure is arranged on the other side of the treatment structure. The filter structure is improved, impurities attached to the surface of a filter screen can be cleaned in time through a telescopic rod and a scraper blade, the efficient filtering performance of the filter screen is maintained, the filter chamber is turned over through rotation of a first rotating shaft, a turning cover is turned over in combination with rotation of a second rotating shaft, and the filter screen can be conveniently cleaned. The liquid inlet end extends into the filtering chamber, stable inflow of the sewage is ensured, the clamping buckle ensures the sealing performance when the overturning cover is closed, sewage leakage is prevented, and the filtering efficiency and practicability of the device are integrally improved.

The utility model discloses a MBR membrane assembly of uniform aeration, including membrane frame, membrane silk unit and water collecting pipe, and membrane silk unit is installed on membrane frame, and is linked with water collecting pipe, still include aeration assembly and flow guide component, and aeration assembly is located membrane silk unit below, and aeration assembly includes annular aeration main pipe and several even distribution's aeration branch pipe, and aeration branch pipe is perpendicular to the width direction of membrane silk unit, and two rows of aeration holes are opened along the axis symmetry on aeration branch pipe, flow guide component includes two side baffles, and side baffle is located membrane silk unit outside and leans to outside. The utility model discloses adopt annular aeration main pipe and several even distribution's aeration branch pipe, let bubble can be more evenly distributed in each area of membrane silk unit, make the sludge on the surface of membrane silk can be timely and effectively washed away, prolongs the service life of membrane silk.

The invention discloses a shaft ventilation type efficient stirrer, and relates to the technical field of stirring equipment.The shaft ventilation type efficient stirrer comprises a tank body, a sealing plate is arranged at an opening in the upper end of the tank body, a feeding port is formed in the sealing plate, and a discharging port is formed in the bottom of the tank body; the bracket is used for bearing the tank body; the center shaft is rotationally arranged at the axis of the sealing plate, the upper end of the center shaft is located above the tank body, the top of the center shaft is communicated with an air source, and the lower end of the center shaft is located in the tank body; the driving assembly is arranged at the upper end of the sealing plate and used for driving the center shaft to rotate; through the three layered aeration units, comprehensive aeration of materials on the upper layer and the lower layer of the tank body is achieved, the defect that existing equipment can only conduct bottom aeration is overcome, meanwhile, the design that the hole diameter is gradually reduced from top to bottom is adopted in a center shaft airflow channel, step-by-step pressurization is achieved in the gas flowing process, the aeration efficiency is improved, and the aeration efficiency is improved. The air outlet resistance caused by lower-layer water pressure is effectively counteracted.

The aeration chassis comprises a chassis body, a gas storage cavity, an aeration cavity, a gas channel and a gas pipe are arranged in the chassis body, a partition plate is arranged between the gas storage cavity and the aeration cavity, a gas port is formed in the partition plate, the gas channel is arranged in the gas storage cavity, and an outlet of the gas channel is communicated with the gas port. An inlet of the gas channel communicates with the gas storage cavity, the gas pipe is arranged in the gas storage cavity, and a plurality of gas holes are formed in the gas pipe. An air port is arranged on the upper portion of the tank body, an aeration plate is arranged above the air port, and a plurality of aeration channels communicated with the air port are arranged on the side wall of the aeration plate. The aeration plate is arranged above the air port, the plurality of aeration channels communicated with the air port are arranged on the side wall of the aeration plate, and large bubbles discharged from the air port pass through the plurality of aeration channels to form a plurality of small bubbles to be discharged. And the membrane filaments above can be uniformly aerated.

This invention belongs to the field of aquatic aeration technology, and specifically relates to an aeration and stirring device, comprising: a shell, a first aeration pipe, a stirring assembly, and a deceleration assembly; the first aeration pipe, the stirring assembly, and the deceleration assembly are disposed inside the shell, with the first aeration pipe located at the bottom of the shell, aerating the material inside the shell; the stirring assembly agitates the bubbles released by the first aeration pipe; the rotation of the stirring assembly drives the first aeration pipe to rotate; and the deceleration assembly makes the rotation speed of the stirring assembly greater than that of the first aeration pipe. By rotating the first aeration pipe, materials at greater depths can be fully aerated, while the rotation of the stirring assembly ensures that materials at less depths are fully aerated, resulting in uniform aeration of materials at different depths and improving aeration efficiency; the deceleration assembly makes the rotation speed of the first aeration pipe less than that of the stirring assembly, which facilitates the stirring assembly to fully agitate the bubbles released by the first aeration pipe into materials at less depths, improving oxygen utilization and increasing aeration efficiency.

The utility model provides an annular aerator, including aeration pipeline, vertical component, bottom disc, micropore diaphragm and annular tablet, aeration pipeline vertical setting, the vertical pipe top end of vertical component is connected with the bottom end of aeration pipeline, the outer flange of bottom disc is equipped with annular convex, the inner flange of bottom disc is equipped with annular convex, and the inside of inner flang is communicated with the periphery of inner flange at the bottom, the micropore diaphragm that is full of micropore is annular, and its periphery arch is equipped with the outer pressure edge cooperation of outer flange, and the inner pressure edge cooperation of its middle arch is equipped with inner flange, annular tablet is annular, micropore diaphragm is installed on the bottom disc, and the outer pressure edge is tightly sleeved on the outer flange, and the inner pressure edge is tightly sleeved on the inner flange, the vertical pipe bottom end of vertical component is fixedly connected with inner flange, makes the tight part tight on the inner pressure edge, and annular tablet is tight on the outer pressure edge, the utility model discloses convenient replacement, and the aeration is even, and the operation is stable.

The invention belongs to the technical field of aquaculture, and discloses a large-scale breeding system for flower shrimp seedlings, comprising the following steps: S1: a breeding system: a modular design is adopted, a breeding box is used for breeding flower shrimps, and the volume can be adjusted according to the breeding scale; S2: a water quality monitoring and regulating system: real-time monitoring of water quality, and regulation through an automatic water quality regulating system; S3: an oxygenation system: an aerator is used to improve the solubility of oxygen in water; S4: a feeding system: a feed feeding machine is used to feed feeds at regular intervals and in fixed quantities; the aeration position inside the breeding box can be adjusted so that the aeration position can be at different depths and different positions inside the breeding box, so that the aeration inside the breeding box is uniform, and the phenomenon of large-scale shrimp seedlings gathering is prevented, thereby preventing the shrimp seedlings from being hypoxic and dying due to collision due to the gathering, thereby improving the survival rate of the shrimp seedlings.

The invention relates to the technical field of sewage treatment, in particular to a low-energy-consumption integrated sewage treatment system suitable for rural areas, comprising a sewage purification area which is divided into an adsorption buffer area, a primary settling area, an organic pollutant conversion area, a secondary settling area and a disinfection area in sequence by a plurality of partition plates, a water inlet is formed in one side of the adsorption buffer area, and a water outlet is formed in the lower end of one side of the disinfection area; the top of the sewage purification area is connected with a gas emission reduction area through a net plate frame, the two ends of a net frame plate are detachably connected with the sewage purification area through a dismounting mechanism, a plurality of filler frames used for containing filler are arranged in the organic pollutant conversion area, and through holes are formed in the frame walls of the filler frames; positioning grooves are formed in the two side walls of each filler frame respectively, vertical sliding grooves are formed in the two side walls of the organic pollutant conversion area respectively, long-strip-shaped sliding blocks are arranged in the sliding grooves in a sliding mode, positioning blocks are arranged on one sides of the sliding blocks, and the sewage treatment device is good in sewage treatment effect and high in efficiency.

The invention discloses solid-liquid separation liquid treatment equipment for sewage treatment, relates to the technical field of sewage treatment, and aims to solve the problems that sewage subjected to aeration reaction in a container is mixed with newly introduced sewage, so that the newly introduced sewage in the aeration reaction cannot be in contact with gas preferentially, the aeration reaction is nonuniform, and the sewage treatment effect is poor. The air pressure of introduced air is increased in the accumulation process, so that the sliding disc compresses the elastic cover to deform and slide, the connecting column drives the stop block to move, different gaps are opened according to the air pressure, the air is guided out and makes contact with sewage, aeration treatment on the sewage is achieved, at the moment, the same gap is opened between the stop block and the through groove, and the air is uniformly guided out; meanwhile, the arc-shaped cover is matched with the side filler strip, so that the gas is in preferential contact with newly introduced sewage, and the situation that the aeration effect of the sewage is not uniform and the aeration treatment effect of the sewage is influenced due to preferential contact of the gas with the sewage subjected to aeration reaction is avoided while uniform aeration of the sewage is ensured.

The present application relates to desulfurization wastewater treatment technical field, specifically a kind of power plant desulfurization wastewater treatment method and system, including aeration main pipe, aeration branch pipe and aerator, the aeration main pipe is horizontally erected in wastewater treatment pond top, aeration main pipe side is connected with multiple groups of aeration branch pipe, the vertical section bottom of aeration branch pipe extends into wastewater treatment pond bottom, and the bottom of aeration branch pipe is connected with aeration device;The upper end of the aeration branch pipe is L-shaped, and the upper end between aeration main pipe and aeration branch pipe is communicated by bellows;The present application uses flexible bellows as the connecting component of aeration main pipe and aeration branch pipe, can absorb the branch pipe shaking force caused by water flow, aeration disturbance through the deformation capacity of bellows, avoid alternating stress transmission to the flange connection parts of both ends, to reduce the risk of flange loosening, sealing failure, air leakage and water leakage, prolong the service life of aeration system.

The utility model belongs to the technical field of screening devices, and particularly relates to a gold smelting concentrate pretreatment screening device which comprises a flotation bin, a blocking net bearing frame is arranged on the inner side of the flotation bin, a reverse funnel type blocking net supporting frame is arranged on the top of the blocking net bearing frame, and a blocking net is arranged on the top of the reverse funnel type blocking net supporting frame. A top cover is arranged at the top of the flotation bin, a feeding hopper is connected to the top of the top cover, a gas conveying pipe is rotationally installed between the top and the bottom of the top cover in a penetrating mode, a rotating connector is connected to the top of the gas conveying pipe, a bifurcated pipe is connected to the outer side of the gas conveying pipe, and one end of the bifurcated pipe is connected with a hollow ball. The bottom end of the air conveying pipe penetrates through the reverse funnel type blocking net supporting frame and is connected with the hollow disc, evenly-distributed air outlet holes are formed in the outer side of the hollow ball and the top of the hollow disc, liquid in the flotation bin can be evenly aerated, bubbles are evenly distributed in the liquid in the flotation bin, and the flotation efficiency is effectively improved.

The application discloses an organic waste aerobic fermentation aeration device, which comprises a hollow horizontal frame and telescopic aeration pipes. The hollow horizontal frame is horizontally fixed above a fermentation tank and adopts a hollow tubular structure. A main air cavity is formed in the hollow horizontal frame. One end of the main air cavity is connected with an aeration fan through a flange, and the other end is closed. A plurality of air path interfaces are arranged at equal intervals on the bottom of the hollow horizontal frame. Each air path interface is connected with one telescopic aeration pipe through a quick release connector. The telescopic aeration pipe comprises a plurality of mutually nested pipe sections and is composed of a main pipe section and a nested movable pipe section. The upper end of the main pipe section is fixed below the hollow horizontal frame and connected with the corresponding air path interface. The movable pipe section can be axially telescoped along the main pipe section. Each pipe section is provided with aeration holes along the pipe body. The aeration device can penetrate through the top to the bottom of the aerobic fermentation tank, uniform aeration is realized, and the telescopic aeration pipe does not affect the feeding and discharging of materials.

The utility model discloses a microbubble type breeding device which comprises a shell, and a breeding groove is formed in the upper end of the shell. The bubble generating mechanism comprises a hollow plate horizontally arranged in the breeding tank, a plurality of aeration holes are formed in the inner top of the hollow plate, a high-pressure air pump is fixedly connected to the left side of the shell, the air outlet end of the high-pressure air pump communicates with a hose, and the other end of the hose extends into the breeding tank. The hollow plate is internally communicated with the hollow plate; and the moving mechanism is used for moving the hollow plate left and right, the moving mechanism comprises a motor installed on the left side of the shell, an output shaft of the motor extends into the breeding tank and is fixedly connected with a bidirectional threaded rod, and the right end of the bidirectional threaded rod is rotationally connected with the inner wall of the right side of the breeding tank. In the using process of the device, the aeration uniformity can be effectively improved, and in addition, the blocking mechanism is arranged, so that the possibility that an aeration part is blocked can be reduced.

This application provides an organic fertilizer fermentation aeration device, comprising: a fermentation tank, a bottom aeration unit, and a side aeration unit; the side aeration unit includes a second high-pressure oxygen pump, a second main air inlet pipe, multiple second aeration pipes, and an electric telescopic rod. The second high-pressure oxygen pump is located on the outside of the side of the fermentation tank. The middle air inlet of the second main air inlet pipe is connected to the outlet of the second high-pressure oxygen pump via a flexible hose. One end of each of the multiple second aeration pipes is connected to the second main air inlet pipe. The fixed end of the electric telescopic rod is mounted at the same height as the second main air inlet pipe via a fixed bracket, and the telescopic end of the electric telescopic rod is connected to the middle of the side wall of the second main air inlet pipe. Side wall through holes are opened on the side wall of the fermentation tank near the side aeration unit, corresponding to the multiple second aeration pipes. Multiple second aeration slits are opened on the top wall of the multiple second aeration pipes. This application achieves uniform aeration during the organic fertilizer fermentation process, improving the fertilizer efficiency of the organic fertilizer.

The invention discloses sewage treatment equipment and method, and belongs to the technical field of sewage treatment.The sewage treatment equipment comprises a pool body, the pool body is a rectangular pool body and is provided with a cover body, a water inlet pipe is arranged on one side of the pool body, a water outlet pipe is arranged on the other side of the pool body, and an exhaust pipe is arranged on the cover body; a plurality of guide columns are vertically arranged, and each guide column is provided with a turntable capable of ascending, descending and rotating. Through the combination of rotation of the turntable and bidirectional aeration, in the rotating process of the turntable, the upper aeration holes and the lower aeration holes release oxygen synchronously, and meanwhile, the rotating turntable drives water flow to move, so that the laminar flow state of sewage is broken; the adjacent rotating discs rotate reversely, so that water flow forms multidirectional convection, diffusion of oxygen bubbles in sewage is accelerated, the situation that local dissolved oxygen is not uniform in the tank body is avoided, it is ensured that microorganisms keep high activity in a stable dissolved oxygen environment, and then the sewage treatment efficiency is improved.

The utility model discloses an aeration device for municipal sewage treatment, including mount, and the first motor is fixedly arranged to the mount outer wall and has the threaded lead screw with first motor output fixedly connected, the threaded lead screw outer wall is connected with the removal bearing plate, the removal bearing plate top is provided with reciprocating structure, and both ends of reciprocating structure are provided with aeration fan and have aeration pipeline with one end fixedly connected with aeration head, and the aeration pipeline one end fixedly connected with aeration head is provided with filter plate in the aeration head, the filter plate outer wall is fixedly provided with inclined surface piece in symmetry, and the aeration head outer wall is located the opposite position of inclined surface piece and is provided with dismounting structure, and the dismounting structure contains two fixed boxes of fixed mounting on the aeration head outer wall, and the fixed box inner wall is slidably connected with push rod and is fixedly installed on the plug-in rod outer wall, can realize the even aeration treatment to the different position of aeration tank.

This utility model discloses a modular, configurable curtain-type MBR pulse aeration structure, including two end members and at least one aeration member disposed between the two end members. The two end members and the at least one aeration member are detachably connected by a tenon and mortise structure to form an aeration structure body. The aeration structure body has an inner cavity with a lower opening and a surrounding inner circumferential wall. The upper end of the surrounding inner circumferential wall is connected to the top wall of the inner cavity and is shorter than the circumferential wall of the inner cavity, dividing the inner cavity into an air inlet chamber and an aeration chamber. This utility model adopts a modular, configurable design. By combining different numbers of aeration members, the length of the aeration structure can be flexibly adjusted to adapt to curtain-type MBR membrane modules of various sizes, completely solving the installation difficulties caused by the fixed size of existing aerators.

The utility model provides a low-carbon aeration system, which is suitable for the technical field of aeration systems and adopts the technical scheme that the low-carbon aeration system comprises an aerobic tank main body, an air blower main body, an I-shaped shell, a connecting plate and an electric push rod, the air blower main body is fixedly connected with the upper surface of the aerobic tank main body, the I-shaped shell is arranged above the aerobic tank main body, and the connecting plate is fixedly connected with the connecting plate. Connecting plates are symmetrically and fixedly connected to the upper surface of the I-shaped shell; electric push rods are fixedly connected to the inner walls of four circular holes in the top of the aerobic tank main body; by installing the aerobic tank main body, the air blower main body, the I-shaped shell, the connecting plate, the electric push rod, the aeration pipe main body, the fixing buckle and the conveying pipe, excessive throwing of an organic carbon source can be prevented, consumption of the organic carbon source is reduced, uniform throwing of the organic carbon source is guaranteed, meanwhile, uniform aeration is guaranteed, and after aeration is finished, the aeration effect is improved. Sealing the aeration pipe main body; the utility model is also applicable to the field of aeration systems.

The utility model discloses a double aeration sewage treatment device of promoting RPIR denitrification effect, including base, the pool body is fixed on the base, and the top of pool body is opened with the sliding slot, and the inside fixed mounting of sliding slot has the support mechanism, and one end of support mechanism is fixed with the sliding block, and one end of sliding block is fixed with motor base, and the fixed mounting of drive motor is installed on the motor base, and the stirring subassembly is installed on drive motor, and the support pipe is welded on the base, and the inside movable mounting of support pipe has the limit stop, and the limit stop is installed in the inside of support pipe through the elastic spring, and the movable mounting of limit stop is installed on the limit stop, and one end of limit stop is welded on the motor base. The utility model discloses, through the gas of aeration disc discharge, under the stirring of stirring subassembly, push to the sewage in each position, and stirring subassembly realizes the sewage stirring of completion secondary sewage aeration treatment to sewage, and effectively makes the sewage in different positions and carries out uniform aeration.

The utility model relates to the technical field of sewage treatment, in particular to a multifunctional biological aerated filter for sewage treatment, which comprises a filter body, a filter material layer, a water distribution part, an aeration part, a backwashing part and a drainage part, the movable aeration group comprises a plurality of aeration movable components, and is used for monitoring the movable position of each aeration movable component and the corresponding microorganism dissolved oxygen condition in real time; the monitoring assembly is used for monitoring obstacles around the aeration movable assemblies in real time, the adjusting assembly is used for adjusting the positions of the aeration movable assemblies, and the energy supply assembly is used for supplying power to the assemblies. The sewage treatment efficiency of the biological aerated filter is effectively improved.

The utility model discloses movable river sludge reduction online treatment equipment which comprises a floating raft, an aeration device and a filter screen box, and the floating raft comprises pedals on two sides and buoys arranged at the lower parts of the pedals; the middle of the pedal is of an open structure, a supporting frame is arranged on the open portion of the pedal, a lifting opening is formed in the middle of the supporting frame, the filter screen box is arranged below the lifting opening, lifting rings are arranged on the two sides of the filter screen box respectively, winding devices are arranged at the corresponding positions, located above the lifting rings, of the supporting frame respectively, and steel wire ropes are wound around the winding devices. The lower end of the steel wire rope is connected; the aeration device comprises a submersible pump mounted in the filter screen box, a microporous aeration head connected with a water outlet pipe of the submersible pump, and an air inlet pipe communicated with the microporous aeration head. The device is convenient to operate and wider in application range, can play an important role in the reduction treatment process of the deposited sludge in the river channel, realizes efficient aeration, saves the cost, improves the biodegradation efficiency, and ensures the sludge reduction effect.

The artificial breeding and hatching equipment comprises a culture cylinder, a supporting assembly is arranged on the lower portion of the outer wall of the culture cylinder, a screening cylinder is fixedly installed on the upper portion of the outer wall of the culture cylinder, and a screening groove is formed in the end, adjacent to the culture cylinder, of the screening cylinder. According to the novel acrossocheilus neolissocheilus egg culturing and hatching device, the novel acrossocheilus neolissocheilus eggs are placed in the culturing cylinder to be cultured and hatched, egg membranes and dead eggs in the novel acrossocheilus neolissocheilus eggs can float on the liquid level, and therefore the novel acrossocheilus neolissocheilus eggs can be cultured and hatched; the neolissocheilus heteromouth roe collecting device has the advantages that the neolissocheilus heteromouth roe flows into the screening groove through the culture solution, the neolissocheilus heteromouth roe is filtered through the screening net, roe membranes, dead roes and impurities in the neolissocheilus heteromouth roe are intercepted in the collecting area together, and the neolissocheilus heteromouth roe collecting device is high in practicability and convenient to remove impurities.

The application discloses a biological sludge recycling type sewage treatment reaction device, and relates to the technical field of sewage treatment. The device comprises a pool body, the inner part of the pool body is fixedly connected with a first partition plate, a second partition plate and a connecting plate respectively, the pool body and the first partition plate form an anaerobic zone, and the first partition plate, the second partition plate and the pool body jointly form an anoxic reaction zone. In the application, the sludge quality separation and reflux system is matched with the gradient sedimentation assembly through the spiral separator, the reinforced cyclone hydraulic field is formed in the anaerobic zone by means of the spiral flow channel with a narrowing inner diameter from top to bottom, the centrifugal force is used to make the inert sludge and heavy particles with a larger density migrate to the pool wall and sink to the sludge hopper to complete in-situ concentration, the preliminary sludge separation is realized, the separation load of the subsequent sedimentation unit is effectively reduced, the mixed contact of the sewage and the anaerobic sludge is strengthened by the cyclone state water flow, a stable anaerobic environment is created for the phosphorus accumulating organisms, and the phosphorus accumulating organisms are promoted to release phosphorus efficiently.

The utility model relates to the technical field of composting, and provides a composting aeration device which comprises an aeration box with a cavity inside, a plurality of vent holes formed in the top of the aeration box, and an aeration pipe arranged on the side face of the aeration box and used for being connected with an external air supply device. The enclosure is arranged on the periphery of the top of the aeration box, and a space defined by the enclosure and the top of the aeration box is used for placing materials. According to the utility model, the aeration is more uniform, the blockage by materials is avoided, the aeration effect is ensured, and the influence of non-uniform aeration and blockage of the aeration pipe on quick decomposition and stable quality of compost is avoided.

The invention belongs to the technical field of sewage treatment aerators, and particularly discloses an efficient anti-clogging double-rotational-flow aerator and a hoisting aeration device.The double-rotational-flow aerator comprises a barrel and an air inlet pipe, a turbulence generator is arranged in the barrel, a plurality of sets of upper rotational-flow spray pipes are arranged outside an upper rotational-flow guide cover at the upper end of the barrel, and the upper rotational-flow guide cover is provided with a plurality of sets of lower rotational-flow spray pipes; the bottom of a lower rotation flow guide cover at the lower end of the barrel is open, a plurality of lower rotational flow spraying pipes are arranged in the lower rotation flow guide cover, an air inlet pipe sequentially penetrates through the upper rotation flow guide cover and the barrel from top to bottom and is communicated with all the lower rotational flow spraying pipes, and the spiral spraying direction of all the lower rotational flow spraying pipes is consistent with the inclined spraying direction of all the upper rotational flow spraying pipes. According to the aerator disclosed by the invention, the upper rotational flow spray pipe and the lower rotational flow spray pipe are respectively arranged on the upper flow guide cover and the lower flow guide cover to form a double-rotational-flow structure, and the turbulent flow generator is arranged in the barrel, so that the aerator not only prevents blockage, but also can efficiently aerate. The hoisting aeration equipment comprises an air blower and an aerator, and the aerator is hoisted in the aeration tank by the hoisting aeration equipment through an aeration air pipe, so that the maintenance is convenient.