59results about How to "Solve silt" patented technology

The invention discloses an urban sewage waterpower self-cleaning device with drum grid which comprises, a sewage water pumping pipe, a sewage backwater pipe, a sewage elevating pump and a scrubbing apparatus arranged on the sewage water pumping pipe, wherein the water intake port of the sewage water pumping pipe and the water return port of the sewage backwater pipe are arranged in the sewage trunk canal, the other ends of the sewage water pumping pipe and the sewage backwater pipe are provided with a scrubbing installation.

The invention provides a comprehensive treatment method for restoration of gangue hill ecological environment. The method specifically comprises the following steps of carrying out gangue hill slope cutting, shaping and fire extinguishing engineering, carrying out enclosure and isolation engineering, carrying out soil covering engineering, carrying out semi-flexible rapid drainage system engineering, carrying out nutrient soil construction engineering, carrying out anti-erosion vegetation restoration engineering and carrying out vegetation maintenance system engineering. According to the method, through reasonable gangue hill slope cutting and a semi-flexible rapid drainage system, a gangue hill can be ensured to be safe and stable; through gangue hill fire extinguishing and enclosure andisolation, the damage to the gangue hill can be thoroughly eliminated; through scientific and reasonable soil improvement through soil exchange, vegetation can grow fast and permanently; through an anti-erosion vegetation restoration technology, the erosion of wind and rain to a side slope can be resisted; and a reasonable vegetation maintenance system is designed, so that the problems of vegetation irrigation and fertilization of the side slope of the gangue hill can be solved, and water and soil loss of the side slope of the gangue hill can be prevented. The method has the advantages that acombination of measures are taken from the seven key points, so that the damage of spontaneous combustion of the gangue hill to the environment can be avoided, a plant community can be quickly formed,and the restoration of the mine ecological environment can be realized.

The invention discloses a lower flap gate provided with an automatic sewage disposal device, which comprises a gate plate, wherein the bottom of the gate plate is connected with a gate bottom sill arranged in a riverway through a supporting hinged shaft; a connection lifting lug arranged at the upper part of an upstream face of the gate plate is connected with an expansion rod of a hydraulic hoist placed at the top of a gate pier; the bottom of the upstream face of the gate plate is connected with a sewage disposal plate through a movable hinged shaft; the sewage disposal plate extends to the upper surface of the gate bottom sill; and the width of the sewage disposal plate is matched with the width of a gate hole of the riverway. The sewage disposal plate is formed by combining a plurality of parallel steel plates; and the front end parts of the steel plates are provided with oblique plane cutting edge structures. The lower flap gate has the advantages that the lower flap gate is simple in structure and ingenious in conception; a dead angle at an intersection (namely the gate bottom sill) between a downstream bottom face of the riverway and the gate plate is blocked off by utilizing the sewage disposal plate connected with the bottom of the upstream face of the gate plate in a hinged manner, so that the problem of silting of sediment at the bottom of the gate is solved thoroughly; complete gate closure and in-place water shutoff are ensured; and water leakage of the gate does not appear.

The invention discloses a method for arranging concentrated draining lanes of a working face floor. The method comprises the following steps that firstly, according to the coal seam structural situation, the concentrated draining lanes of a working face are arranged in floor rock along the lowest part of coal seam, double lane arrangement is adopted, one lane is connected with a return airway of amining area, and the other lane is connected with an entrance of a water sump; and water draining drill holes are formed in the intersections of roadways on both sides of the working face and the concentrated draining lanes of the working face floor, gushing water in the working face or a goaf is gathered to the lowest part of the working face by gravity, the gushing water is drained along the water draining drill holes to the draining lanes, and finally the gushing water automatically flows to the water sump along the concentrated draining lanes of the working face floor. The method fully utilizes structural features and simplifies the layout of the draining lanes, a set of draining lanes is centrally arranged in the coal seam floor to serve the entire mining area, the system is simple and reliable, the production environment of the coal mining working face is greatly improved, the disaster resistance of a mine is improved, the amount of dredging in a ditch and the water sump is greatly reduced, favorable conditions for high-yield and stable production of the mine are created, and a good application prospect is achieved.

The invention relates to a flushing system for cleaning local sedimentation in a nuclear power plant, wherein a demineralized water plant building (13) and a water taking pump room (12) of a circulation water and important plant use water system are arranged in the nuclear power plant, the flushing system comprises an ultrafiltration waste water recovery pool (1) and a flushing water pump (2), the ultrafiltration waste water recovery pool (1) is arranged in the demineralized water plant building (13), the inlet end of the flushing water pump (2) is connected with the ultrafiltration waste water recovery pool (1), and the outlet end of the flushing water pump (2) is provided with a flushing pipeline (3). The invention also provides a method adopting the flushing system for cleaning the local sedimentation in the nuclear power plant. When the flushing system and the method provided by the invention are adopted, the problem of local sedimentation of the pump room of the nuclear power plant in the high-sediment sea area is solved, the operation safety of the circulation water and important plant use water system in the pump room is improved, the utilization rate of fresh water is also improved, and the water consumption is saved.

The invention relates to a rotary gate automatically controlled by waterpower and provided with a horizontal shaft. The rotary gate comprises a lock chamber, bearing bodies, a gate shaft, a rotary gate body, suspension mechanisms, a cover plate bridge, a service bridge, a water-stopping unit and hydraulic vibration-damping units. Each bearing body is composed of a bearing groove, a bearing, a bearing gland and a bolt; the gate shaft is fixed in the bearing grooves through the bearings; the upper end of the rotary gate body is installed on the gate shaft through the suspension mechanisms; each hydraulic vibration-damping unit is composed of a piston cylinder, a piston and a piston rod; and each piston cylinder is connected to the service bridge at the side in the downstream direction through a bridge hinge, and each piston rod is connected to the lower end of the rotary gate body through a gate hinge. According to the invention, the state of water flow in the lock chamber is stable, the water storage and discharge capacity can be improved, the automatic opening and closing of the rotary gate can be controlled completely by means of the condition of upland water, the opening degree of the rotary gate can be automatically adjusted at any moment along with the water level change, and the problem of siltation in front of the gate can be solved.

The invention relates to a method for the resource treatment of water plant clear water reservoir sludge. The method mainly comprises the following steps: depositing the water plant clear water reservoir sludge into slurry, removing sand-stone impurities by filtering, placing the slurry in a reflux stirring slurry tank for stirring, transferring the slurry to a high-temperature sterilization prill tower by a high-pressure pump, performing hot air sterilization drying on the slurry to obtain grain-shaped sludge grain, calcining the sludge grain, and stabilizing other materials in the grain-shaped sludge grain such as free aluminum ion and the like into artificial sand which is stabilized and pollution-free for resource reutilization.

The utility model relates to an urban sewage hydraulic self-cleaning device provided with a roller grill, which relates to an improvement of a device which utilizes urban sewage to provide energy. It consists of a sewage suction pipe (2), a sewage return pipe (3), a sewage lifting pump (4) installed on the sewage suction pipe (2) and a decontamination device (5). The sewage suction pipe (2) The water suction port (6) and the return port (7) of the sewage return pipe (3) are arranged in the main sewage canal (1), and the other end of the sewage suction pipe (2) and the sewage return pipe (3) is provided with a decontamination device (5), the decontamination device (5) consists of a housing (8), a cylindrical grid filter (9) and a transmission device (10) that drives the rotation of the cylindrical grid filter (9) , the inside of the housing (8) is divided into a water supply area (11) and a return water area (12), and the cylindrical grille filter (9) divides the water supply area (11) into the inner water supply area (11-1) and The water supply area (11-2) outside the tube, the backwater area (12) is divided into the backwater area (12-1) inside the tube and the backwater area (12-2) outside the tube by the cylindrical grid filter (9) . The invention has the advantages of small occupied area, low cost, simple equipment and wide application range.

The invention designs a half-flexible quick drainage system applied to gangue dump treatment and aims to overcome the defect that gangue dump drainage channels are nonresistant to settling, prone to sedimentation and slow in drainage. Half-flexible drainage channels are adopted, so that damage to the channels caused by settling of gangue dump can be resisted, and quick drainage can be realized; various optimized design modes are adopted for the drainage system, each transverse drainage channel is designed with a U-shaped section, a higher middle, lower two sides and an adverse slope, so that more rainwater can enter the transverse drainage channels more quickly and can be discharged from a longitudinal drainage channel outside a gangue dump site more quickly, the problem of sedimentation in the drainage channels is solved effectively, and soaking of slopes and packways by the rainwater is reduced; the drainage channels have the advantages of high strength, corrosion resistance, long service life, freezing resistance and convenience for mounting and replacing, and a powerful guarantee is provided for long-time use of the drainage channels.

The invention discloses a self-levelling egg skin machine. The machine comprises an egg skin formation roller, multiple heating mechanisms, a large bevel gear and a liquid storage groove. The interiorof the egg skin formation roller is hollow, multiple first through holes are formed in the side wall of the egg skin formation roller in the circumference direction, a rotation shaft is coaxially arranged in the egg skin formation roller, and the egg skin formation roller can rotate around the rotation shaft; the heating mechanisms correspond to the first through holes one to one, each heating mechanism comprises an electric heating plate and a transmission shaft, one end of each transmission shaft is fixedly connected with the side face, facing the egg skin formation roller, on the corresponding electric heating plate, and a small bevel gear is arranged at the other end of each transmission shaft; the large bevel gear is fixedly arranged on the periphery of the rotation shaft and meshedwith each small bevel gear, and during rotation of the large bevel gear, the small bevel gears are driven to rotate; the liquid storage groove is located below the egg skin formation roller, and whenthe egg skin formation roller rotates, the electric heating plate can be in contact with egg liquid in the liquid storage groove. According to the self-levelling egg skin machine, the problem of localaccumulation when the egg liquid is formed into the egg skin can be solved, and accordingly the egg skin with even thickness is obtained.

The invention discloses a high-rise building rainwater collecting self-circulation utilization system. The system comprises a glass curtain wall water collecting system, a top layer water collecting system and a water circulation system in a building, rainwater can be collected in all directions by the glass curtain wall water collecting system and the top layer water collecting system, the rainwater is conveyed, purified and stored in floor space through a connecting pipeline network, the rainwater in a water storage tank can be used as fire extinguishing and sanitation water when needed, spraying cleaning or irrigation is conducted on the two water collecting parts, and used water can be recycled. By means of the system, the problem of difficult rapid discharging of blocked rainwater inan urban center can be solved, so that multiple current problems of waterlogging, rainfall runoff and the like in a city are solved, rainwater on-site collecting and recycling can be achieved to relieve the rain flood pressure of municipal pipelines, automatic spraying of indoor fire extinguishing, greening and glass curtain wall cleaning can be achieved, building water using amount is reduced, and the problem of scarce water resource is relieved.

The invention discloses a height-adjustable flat plate gate type weir and belongs to the irrigation technical field. The flat plate gate type weir comprises a waterproof control box, a gate plate, gate plate chutes, a door type gate frame, a buried type gate plate box and two adjusting screws; the buried type gate plate box is installed at a soil layer below the bottom of a canal; the lower part of the door type gate frame is fixed in the buried type gate plate box; the gate plate chutes are fixed at the left side wall and right side wall of the door type gate frame which are opposite to each other; the left side and the right side of the gate plate are inserted into the gate plate chutes respectively in a matched manner; the waterproof control box is arranged at the top of the door type gate frame; one end of each adjusting screw is connected with the waterproof control box, and the other end of each adjusting screw is connected with the gate plate; and the waterproof control box drives the adjusting screws so as to drive the gate plate to move up and down in the gate plate chutes. When the gate plate is raised to a highest point, the bottom of the gate plate is flush with the bottom of the canal; and when the gate plate is descended to a lowest point, the top of the gate plate is flush with the bottom of the canal. With the height-adjustable flat plate gate type weir of the invention adopted, the height of the weir can be adjusted, and the problem of sediment accumulation of a traditional weir or gate can be solved.

An ecological hydro-junction facility applicable to river and lake communication comprises a submerged weir, water release gates, blow sand gates, gate piers, a ship lock, a guide wall and gate hoists. In a flood season, the water release gates and the blow sand gates are opened to enable part of river water to flow into a lake region and relieve the downstream flood prevention pressure, fishes migrate through the gates to lay eggs and find foods, and the gates are closed after the flood season ends. During the dry period, the blow sand gates are opened to feed water to the downstream to washsediment deposited in the lake region to the downstream and guarantee water abundance of the lake region. Exchange of a water body of the lake region and the river water is realized through the submerged weir throughout the year for fish swimming. The ecological hydro-junction facility is a gate and weir combined allocation open type regulation and control junction. While the defects of a hydro-junction are overcome, the problems of inadequate bearing capacity of water resources and water environments of river-communicating lake regions during the dry period and the like are effectively alleviated.

The invention relates to an urban emergency rainwater drainage system, comprising drain wells, rainwater wells and a sewage discharge pipeline, wherein the rainwater wells are respectively connected with rainwater collection wells and are separately connected with a drainage ditch; the tail end of the sewage discharge pipeline is communicated with a sewage treatment terminal; the urban emergency rainwater drainage system is characterized in that each drain well is internally provided with an upper layer of one-way reverse osmosis prevention device and a lower layer of one-way reverse osmosis prevention device, and each rainwater well is internally provided with an upper layer of one-way reverse osmosis prevention device and a lower layer of one-way reverse osmosis prevention device; all the drain wells are connected in series or in parallel on the sewage discharge pipeline; a main treatment pipeline is communicated with all the rainwater wells, and all the rainwater wells are respectively communicated with the at least one drain well by a communicating pipeline; inlet ends of the communicating pipelines are communicated with the rainwater wells, and inlets of the communicating pipelines are respectively formed between the two layers of one-way reverse osmosis prevention devices on the walls of the rainwater wells; outlet ends of the communicating pipelines are communicated with the drain wells, outlets of the communicating pipelines are respectively formed between the two layers of one-way reverse osmosis prevention devices on the walls of the drain wells, and one-way communicating vessels are respectively installed at the outlets of the communicating pipelines. The urban emergency rainwater drainage system is simple in structure, compact in design, simple and convenient in construction, energy-saving and environment-friendly, and can effectively solve the problem of rain deposition while effectively utilizing the available resources.

The invention discloses a reservoir sand discharging device based on a normal curved surface funnel, and belongs to the technical field of water conservancy projects. The device comprises a sand inlet funnel and a sand conveying pipeline; the sand inlet funnel is located in a sediment accumulation area in a reservoir, the sand conveying pipeline is laid on a reservoir riverbed, the bottom of the sand inlet funnel is connected with one end of the sand conveying pipeline, and the other end of the sand conveying pipeline penetrates out of the bottom of a dam; and the appearance of the sand inlet funnel is in a bivariate normal curved surface shape, the shape of the sand conveying pipeline is in an anti-hyperbolic tangent curve shape, and a valve is arranged on the sand conveying pipeline. When the device runs, the valve on the sand conveying pipeline is opened, and under the action of water pressure in the reservoir, water flow carries sediment to be discharged into the downstream of the reservoir through the sand discharging pipeline. The normal curved surface shape of the sand inlet funnel and the hyperbolic tangent shape of the sand conveying pipeline can effectively solve the problem that a sand inlet and the interior of the pipeline are prone to being blocked, and the sand discharging efficiency is remarkably improved.

The invention belongs to the technical field of municipal pipeline construction, and particularly relates to a municipal rainwater pipeline assembly module and a construction method. The municipal rainwater pipeline assembly module comprises four assembly module bodies of an assembly module body A, an assembly module body B, an assembly module body C and an assembly module body D. Compared with atraditional mode, arrangement of road position rainwater hoppers can be canceled, arrangement of inspection wells can be reduced, the inspection wells on road parts can further be moved into green belts, the mechanical efficiency in the road surface layer paving period can be improved, vehicles can further be effectively prevented from directly acting on pipeline groove and the inspection well positions in the operation period, and the sedimentation problems of road grooves, the rainwater hoppers and the inspection wells are solved; and water heads directly act on pipe cavities when road rainwater flows into a hollow cavity A from a gap between twp templates, a formed vortex directly scours the pipeline bottom, and the problem of sediment accumulation in pipelines is solved.

The invention belongs to the technical field of water conservancy projects, and relates to a water diversion and water taking technology in water conservancy projects, in particular to an alpine region gully small-flow double water taking system. A midstream water taking area comprises a retaining wall, a solid overflow dam section, a water collecting gallery cavity overflow dam section and a bottom grid water taking dam section; the bottom grid water taking dam section is arranged between the solid overflow dam section and the water collecting gallery cavity overflow dam section; the part, higher than an upstream anti-seepage blanket area and a downstream apron area, of a midstream water taking area is divided into an upstream face, an interlayer part and a protection slope; the interlayer part of the bottom grid water taking dam section is provided with a grid and a cavity to form a bottom grid water collecting gallery, and the interlayer part of the water collecting gallery cavity overflow dam section is provided with a cover plate and a cavity to form a cavity overflow dam section water collecting gallery; and the bottom grid water collecting gallery communicates with the cavity overflow dam section water collecting gallery and is of a longitudinal slope structure from high to low, and a water diversion pipe arranged at the retaining wall is guided into the bottom grid water collecting gallery. Water taking in winter can be guaranteed, and investment can be saved.

The invention discloses a disturbance bank tail water flow device. The water flow device comprises a control module installed inside a base, one end of the control module is connected to an external temperature sensor fixed on the base, the other end of the control module is connected to a constant-temperature box; a semiconductor refrigeration piece and an internal temperature sensor are fixed onthe inner wall of the constant-temperature box; a stirrer is fixed on the upper part of the tail part of the base, and the stirrer is connected to the internal control module of the base through a transmission mechanism; and the head of the base is of a fish mouth shape so as to reduce the water flow resistance. The water flow device has the advantages that structure design is reasonable, operation is simple, accurate and fast control decisions can be made according to the detected internal and external temperatures, and the problem of sediment silting is effectively solved.

The invention belongs to the technical field of environment restoration and discloses a resource utilization method for polluted deposit. The method includes 1) building an anti-seepage tank; 2) fishing polluted deposit out, and adding the polluted deposit into the anti-seepage tank; 3) adding compost straw into the deposit with the weight percentage of the compost straw being 5-20%; 4) planting flower plants when the water content of the deposit decreases to a maximum water content of 60-80%; 5) performing water-fertilizer management; 6) monitoring contents of heavy metals and pollutants at regular times; and 7) applying the deposit for soil restoration after a monitoring result reaches a standard, and monitoring the deposit failed to reach the standard or planting flower plants again onthe deposit failed to reach the standard. The technical scheme overcomes deposit pollution and deposit sedimentation problems and is environmentally friendly. The flower plants are adopted as plants for restoration to turn the deposit into a resource and to create economic value. The method is low in cost, simple in step, short in effect production time, and good in restoration effect, builds an ecology landscape in an ecological process and is a positive and sustainable deposit disposal manner.

The invention provides a walking type sludge suction device for wastewater treatment and belongs to the technical field of sewage treatment. A plurality of sludge suction branch pipes are arranged atthe bottom in a tank body; the lower part of each sludge suction branch pipe is communicated with a plurality of sludge suction openings; the upper part of each sludge suction branch pipe is connectedwith an inlet of a sludge suction pump through a pipeline; an outlet of the sludge suction pump is connected with sludge suction general pipes; each sludge suction general pipe is communicated with asludge discharging pipe; an outlet end of the sludge discharging pipe is located at the outer part of the tank body; the sludge suction pump is fixed on a pump supporting platform; the pump supporting platform is fixed on a transverse pipeline bracket; the sludge suction branch pipes are erected on the transverse pipeline bracket. According to the walking type sludge suction device, a walking type sludge suction vehicle is adopted and is operated under water, so that the walking type sludge suction device can reach any part of a tank bottom and can walk and suck sludge at the same time; the problem of cleaning the sludge at the tank bottom can be completely solved and the complete sludge discharging effect is realized, so that the practicability is stronger.

The invention discloses a dredging device and method suitable for a drainage pipeline under an urban roadway. The dredging device and method solve the problem in the prior art that the existing manualdredging in a well is high in labor cost and energy consumption and have the advantages of simple feasible structure and high dredging efficiency. The device suitable for the drainage pipeline underthe urban roadway comprises a casing. A pedal is arranged on the top of the casing, and a plurality of fixed teeth are arranged on the circumference of the drainage pipeline, and the bottom of the pedal is provided with a transmission rod penetrating the casing to the side of the pipeline. An elastic member is sleeved on the top of the transmission rod, the bottom of the elastic member is fixedlyconnected to the casing through a fixing plate, and the top of the elastic member is detachably connected with the lower surface of the pedal. The transmission rod is provided with an active node to facilitate resetting. External force drives the elastic member to push the transmission rod through the pedal, and further the transmission rod and the fixed teeth are matched to push the drainage pipeline to rotate to avoid siltation in the underground drainage pipeline.

The present invention discloses method and apparatus of using city waste water to provide energy source. The method includes the processes of energy recovery, energy conversion and energy release. Waste water is first pumped from the waste water trunk canal, then passed through heat exchanger and finally returned into the trunk canal. The water inlet and water outlet of the water conveying pipeline share one common filter screen, which is made to rotate in the plane during waste water circulating process. The waste water circulating apparatus consists of waste water pumping pipe, waste water returning pipe, pump and dirt eliminating unit. The waste water pumping port and waste water exhausting port in the waste water trunk canal are provided with dirt eliminating units to prevent the siltation of pollutant.

The invention discloses a pressure or bubble water level indicator probe silt-isolating method and device. The device comprises a sealed silt-isolating container, a water filling pipe or a mounting pipe and an inverted-U-shaped bend are arranged on an upper cavity wall of the silt-isolating container, and an upper water filling pipe opening of the water filling pipe is higher than the bend height;a sealing mechanism is arranged at a pipe opening of the water filling pipe or the mounting pipe, and the pressure water level indicator probe or the bubble water level indicator air-blowing pipe isarranged in the silt-isolating container; the silt-isolating container is horizontally and slowly arranged at the water bottom; when the silt-isolating container is arranged at the water bottom; whenthe silt-isolating device is arranged underwater, the air is maintained at an upper part of the bend and cannot be discharged, thereby isolating the deposit and water flow disturbance influence; the precise measurement is reached, the maintenance is convenient, the probe deposit problem is fundamentally solved, the water level indicator stability is increased, and the service life can be prolongedby 1-3 times.

The invention relates to a coal-bearing wastewater treatment system and process. A filtering device in the coal-bearing wastewater treatment system comprises a middle pool, a first filter, a second filter, a first middle water pump, a second middle water pump, a first filtering pipeline, a second filtering pipeline, a third filtering pipeline, a fourth filtering pipeline and a fifth filtering pipeline; a coal water precipitation device is communicated with the middle pool, one end of the first filtering pipeline and one end of the second filtering pipeline are both located in the middle pool,one end of the third filtering pipeline and one end of the fourth filtering pipeline are communicated with the first filter and the second filter respectively, the other end of the first filtering pipeline, the other end of the second filtering pipeline, the other end of the third filtering pipeline and the other end of the fifth filtering pipeline are all communicated with the fifth filtering pipeline, the first middle water pump and the second middle water pump are arranged on the first filtering pipeline and the second filtering pipeline respectively, and the first filter and the second filter are both communicated with a clear water recycling device.

The invention discloses a river bed water intake structure, particularly discloses a river bed water intake structure for hydropower station forward water taking, and belongs to the technical field of design and construction of hydraulic structures. The problem of sediment deposition on a river channel on the upstream side of a water intake can be effectively solved. The river bed water intake structure includes a water intake, a scouring sluice and a spillway sluice which are arranged sequentially in the width direction of the river channel, wherein the axis of the water intake is consistent with the axes of the scouring sluice and the spillway sluice; and the river bed water intake structure further comprises a front sand blocking sedimentation discharge system, the front sand blocking sedimentation discharge system is arranged in a river bed on the upstream side of the water intake, and large-particle sandstone in water flow before entering the water intake is cleared away through the front sand blocking sedimentation discharge system.

The fracturing construction device comprises a barrel body, a sealing cover and a discharging assembly, a feeding opening for feeding materials into the barrel body is formed in the top of the sealing cover, a liquid injection assembly communicated with the interior of the barrel body is fixed to the outer side face of the barrel body, and an annular support capable of rotating in the circumferential direction is arranged on the inner wall of the upper end of the barrel body; a stirring assembly is fixed to the center of the annular support, a plurality of horizontally-arranged supporting plates are evenly distributed on the inner wall of the annular support in the circumferential direction, a material mixing assembly coaxial with the barrel is fixed to the inner ends of the supporting plates, and the material mixing assembly conveys materials at the bottom of the barrel to the upper portion of the barrel and discharges the materials into the barrel again. According to the sand mixing device, the annular support, the supporting plate, the material mixing assembly and the liquid injection assembly are used in cooperation, the annular support rotates, the material mixing assembly conveys sand at the bottom of the barrel body to the upper portion of the barrel body and discharges the sand into the barrel body again, and therefore the purpose that the sand in the barrel body is turned up and down is achieved, and the sand and mixed liquid are fully mixed.

The invention discloses an animal husbandry breeding wastewater treatment method and system, and belongs to the field of breeding wastewater treatment. According to the animal husbandry breeding wastewater treatment method and system, solid-liquid separation is conducted on breeding farm wastewater, the subsequent treatment efficiency can be improved, separated solid substances can be turned intowealth, the ecological environment of rural areas in China is improved, and meanwhile healthy development of agriculture and animal husbandry is achieved. Therefore, solid-liquid separation of the farm wastewater has social benefits and economic benefits, the problem of sedimentation of excrement residues in a biogas digester can be solved, air holes are prevented from being blocked by the residues, and the effect of the treatment process is brought into full play; and COD in the wastewater can be reduced to a great extent through solid-liquid separation, the volume load of anaerobic treatmentis reduced, and the volume and the occupied area of an anaerobic treatment device are reduced.