37results about How to "Realize sewage" patented technology

The invention discloses an automatic sewage disposal method of a pool, which comprises the following steps: step 1: a siphon pipe is arranged between the pool and a sewage well, and the water outlet of the siphon pipe is arranged below the water level of the pool; step 2: the siphon pipe is provided with a valve for controlling gas and sewage discharge; and step 3: a funnel and the valve are arranged at the upper part of the siphon pipe. An automatic sewage system of the pool comprises a pipe (1), a pipe (2), a pipe (3) and the sewage well (8); the valve (4) is arranged between the pipe (1) and the pipe (2); the valve (6) is arranged between the pipe (2) and the pipe (3); the valve (5) is arranged between the valve (4) and the valve (6), and is communicated with the pipe (2); and the funnel (7) is arranged above the valve (5), and is connected with the valve (5) through the pipe. The invention can form a siphon phenomenon only through simple external force; the siphon phenomenon can be kept once formed; and the sewage process does not require water pumps and other external power, thereby saving the equipment investment.

The invention discloses an automatic rainwater collecting distribution station, belonging to the technical field of water conservancy projects. The main structure of the automatic rainwater collecting distribution station comprises a main body, a drainage execution unit, a drainage outlet, a collecting electrical execution unit, a collecting water outlet, a water quality conductivity sensor, a water inlet, an overflow vent, a power distribution control box and the like, wherein the main body is divided into a rotational flow filtering cavity and an outer cavity, the rotational flow filtering cavity and the outer cavity are fastened at the top by virtue of a flange and a bolt, the upper part of the rotational flow filtering cavity is a mechanical filtering hole and a mechanical filter screen, the lower part of the filtering cavity is a conical stereo cavity, the water inlet and the collecting water outlet are arranged at the two sides of the rotational flow filtering cavity, the overflow vent is arranged at one side of the rotational flow filtering cavity, the overflow vent is higher than the water inlet and the collecting water outlet, the water inlet is directly communicated with the conical stereo cavity, the bottom of the rotational flow filtering cavity is connected with the drainage execution unit and is directly communicated with a drain outlet, and the water inlet and the overflow vent are all fastened and connected with the rotational flow filtering cavity by virtue of flange bolts. The invention has compact structure and small volume, the construction and mounting are simple, and the control integration can be realized.

The invention discloses a backwashing high-pressure filter station, which belongs to the field of backwashing high-pressure filter devices for hydraulic systems of underground comprehensive mining hydraulic brackets. The backwashing high-pressure filter station comprises a machine seat (1) and a high-pressure filter (4), and is characterized in that: a rotating machine seat (11) is arranged on the upper part of the machine seat (1); an integrated valve seat device (7) is mounted through the rotating machine seat (11); the bottom of the integrated valve seat device (7) is connected with the high-pressure filter (4) and an energy storage device (3); the lower part of the high-pressure filter (4) is connected with a draining valve (2); and a waste liquid recovering device on the lower part of the draining valve (2) is connected with a recovery filter (12). The backwashing high-pressure filter station has the advantages of large flow, high precision, capability of on-line washing, obviouswashing effect, capability of recycling backwashing liquid and the like; and when the backwashing high-pressure filter station is used, the continuous production operation can be ensured, energy conservation and environment protection can be ensured and the cleanness of the working medium can be ensured effectively.

The invention relates to a magnetic driving rotary gas distributor equipment of gas-liquid multi-phase system. It includes a tower device with magnetic driving device, the rotary-type gas distributor can be directly rotated in the tower bottom to make gas distribution. The gas distributor is driven by rotary permanent magnetic field produced by magnetic driving device and rotated so as to implement goal of rotary gas distribution. In the supporting disk of the gas distributor a gas ingress pipe hole is set, and the ring-shaped gas distribution cavity chamber in the supporting disk and the gas-feeding circular hole on the rotary hollow shaft can be used for making gas distribution, in the bottom end of the rotary hollow shaft a cleaning pollution-discharging valve is mounted.

The invention belongs to the field of filtering devices and provides a self-washing pre-filter. The self-washing pre-filter comprises an upper barrel body and a lower barrel body, which are matched with each other, wherein a sealed chamber is formed between the upper barrel body and the lower barrel body; a water inlet, which is communicated with the chamber, is formed in the upper part of the upper barrel body; the chamber is internally provided with a filtering device and the chamber is divided into a pure water cavity and a sewage cavity; the pure water cavity is connected with a pure wateropening and the sewage cavity is connected with a sewage opening; the filtering device is further provided with a cleaning device; and the cleaning device can rotate around the filtering device and is used for cleaning the filtering device. According to the self-washing pre-filter provided by the invention, the filtering device can be cleaned, without the need of an external force; the filteringdevice keeps a clean state all the time; and mesh holes of a filtering screen are not blocked and the filtering screen does not need to be taken out for washing and replacement, so that the service life of the filtering device is greatly prolonged.

The invention discloses a pressure retaining valve with an automatic water-drain pollution-discharge function. The pressure retaining valve comprises a valve body, a valve chamber, a plug at the bottom end of the valve body, and a valve rod, wherein an inlet connection head is arranged at the top end of the valve chamber, an end seal is arranged between an inlet and the inlet connection head, and the inlet is communicated with the valve chamber; the lower end of the valve rod penetrates through a guide hole in the center of the plug, and a seal disc is arranged at the upper end of the valve rod and corresponds to the inlet; the seal disc is larger than the inlet and is smaller than the inner diameter of the inlet connection head and plays a role of opening and closing the inlet, and a pressure spring is sheathed on the valve rod between the seal disc and the plug; and a discharge port through which the valve chamber is communicated with the outside is formed in the plug. A connection thread is arranged on the outer side of the inlet connection head, and the valve rod is a rubber-vulcanized rod. A rubber sealing layer is arranged on the sealing surface of the upper end of the seal disc on the upper end of the valve rod, and the plug is in threaded connection with the valve body. A hexagonal adjustable head is arranged at the lower end of the plug. The pressure retaining valve can effectively replace the functions of original water drain valves and unloading valves, can realize automatic water drain and pollution discharge of energy storage devices, and reduces the damage effect of hot and humid air sources on the whole system.

The invention discloses a sewage treatment system and a sewage treatment method for a wire producing factory. The sewage treatment system comprises a buffer tank, a floating hair filtering tank, an extended flocculation tank, a multistage filtering tank and a PLC for controlling the whole system, wherein a neutralization tank and a dosing tank are connected to the input end of the extended flocculation tank through shunting tubes and are arranged at the top of the extended flocculation tank; a high-temperature steam tank and a dilute acid regenerating tank are connected to the input end of themultistage filtering tank through an air intake exhaust pipe. According to the sewage treatment system and the sewage treatment method disclosed by the invention, the PLC controls regular regeneration of the multistage filtering tank; dilute acid inside the dilute acid regenerating tank is atomized by an atomizer and then is fed into an air intake manifold; high-temperature steam also enters theair intake manifold and is mixed with the atomized dilute acid; alleviated dilute acid steam is aerated by an aeration machine and is introduced into the multistage filtering tank through the air intake exhaust pipe, so that an internal multiple flocculation precipitation layers and a filler filtering layer are regenerated; in addition, the whole sewage treatment system has the advantages of simple and compact structure, small occupied area and convenience in laying.

The invention relates to an aquaculture decontamination and oxygenation device, which is characterized in that a bottom fixing sleeve is installed at the middle position of a fixed vertical pole, a water-shunting trough plate is installed on the top of the bottom fixing sleeve, and a bottom fixing sleeve is installed on the top of the sluicing trough plate. The screw fixing plate is installed at the position, the roller shaft fixing plate, the roller shaft, the roller and the side wheel are installed on both sides of the middle of the water tank plate, and the sewage collecting tank is installed at the upper right side of the roller shaft fixing plate. The left side of the sewage collection tank is processed with a water inlet, and the sewage collection tank buoyancy fixing plate and the sewage collection tank floating ball are installed on the right side of the sewage collection tank. In conclusion, the invention can not only increase the oxygen in the pond, but also can Clean up impurities such as dirt and oil in the pond to achieve the purpose of circulating the entire aquaculture water body, and ultimately increase the output of pond aquaculture.

The invention discloses an automatic material distribution system for a dye auxiliary, and relates to the technical field of artificial silk dye distribution equipment, wherein a water inlet pipe is installed in a water inlet of a water filter, a high pressure water pump is installed in a water outlet of the water filter, a plurality of auxiliary conveying tanks are connected with the upper end ofa mixing bin through a pipeline conveying pump, a heating mechanism and a mixing mechanism are respectively installed in the inner part of the mixing bin, a liquid collecting plate is installed slantly at the lower end of the interior of the mixing bin, the highest point of the liquid collecting plate is connected with the upper ends of a plurality of dye vats through a plurality of control valves, a liquidometer is installed in the dye vat, a drainage pipe is installed at the lowest point of the liquid collecting plate, and a drainage valve is installed on the drainage pipe. The automatic material distribution system implements automatic conveying, the water is filtered, the time is saved, the operation is simple and convenient, and the efficiency is high; and the efficiency is conveniently improved, the sewage is discharged, and the operation is convenient.

The invention belongs to the technical field of sewage treatment, and discloses lung-simulated treatment equipment for polyvinyl chloride plastic regeneration cleaning sewage. The lung-simulated treatment equipment for the polyvinyl chloride plastic regeneration cleaning sewage comprises a water tank, support legs are installed at the bottom of the water tank, guide grooves are formed in the leftand right side walls in the water tank, guide blocks are slidingly connected into the two guide grooves, the bottom wall of the water tank is fixedly communicated with the water inlet end of a water outlet pipe, and a water valve is fixedly installed at the water outlet end of the water outlet pipe. According to the lung-simulated treatment equipment for the polyvinyl chloride plastic regenerationcleaning sewage, through the arrangement of lung-type purification mechanisms, the principle of lung breathing is simulated, and the sewage is quickly pumped and discharged; different from traditional filtering structures, the lung-type purification mechanisms can quickly collect polyvinyl chloride plastic particles after filtering the sewage, and the sewage is quickly collected; through the arrangement of sewage discharge pipes and sewage discharge linkage mechanisms, the sewage discharge of the lung-type purification mechanisms is facilitated, and the working efficiency of the equipment isimproved.

The invention discloses a medium filter for an electric automobile heat management system convenient to replace. The medium filter comprises a base, wherein a precipitation cup is connected to the base in a threaded mode; a main channel is horizontally arranged in the base, the main channel is connected to a circulation pipeline of the electric automobile heat management system in series through amedium inlet and a medium outlet of the main channel, a filter element is clamped in the precipitation cup, an annular cavity is defined between the side wall of the filter element and the inner wallof the precipitation cup, and an inlet part of the main channel communicates with the annular cavity; the inner cavity of the filter element communicates with the outlet part of the main channel upwards; a precipitation cavity is defined by the bottom surface of the filter element and the inner wall of the precipitation cup below the filter element bottom surface, and the settling cavity is downwards connected with a sewage discharging structure; and an inlet cock valve is arranged on a valve seat of an inlet part of the main channel, and an outlet cock valve is arranged on a valve seat of anoutlet part. According to the medium filter, too much media can be prevented from flowing out when the filter element is replaced, the cost of supplementing liquid is reduced, and the maintenance workload of frequently supplementing the liquid medium is avoided. According to the medium filter, the sewage discharge and backwashing are integrated, so that the filter element is prevented from beingblocked.

The invention discloses a check valve with an operation device, and belongs to the technical field of valves. The check valve comprises a valve body and a valve bonnet, wherein the valve body and thevalve bonnet are connected through bolts, an inflow channel and an outflow channel are formed in the valve body, and the end part of the inflow channel and the end part of the outflow channel are eachprovided with a flange plate; a valve shaft is arranged in the valve body, a rocking bar is connected to the valve shaft, two springs are arranged on the rocking bar, and the other ends of the springs are fixedly connected to the outflow channel; the rocking bar is connected with a valve disc through a positioning pin, a sealing ring A is arranged at the joint of the valve disc and the valve body, and the valve disc is matched with the outflow channel; an external connection pipe is arranged at the bottom of the inflow channel, a lower cover is arranged at the bottom end of the external connection pipe, a clamping ring and a filter element are arranged in the inflow channel, and the other end of the filter element extends into the external connection pipe to be fixedly connected with thelower cover; and a support is connected to the valve bonnet, a turntable is arranged on the support, the turntable is in threaded connection with a valve rod, the valve rod penetrates through the valve bonnet and the support, a mechanical seal ring is arranged at the position where the valve rod is matched with the valve bonnet, the valve rod downwards presses the rocking bar, and the turntable meshes with a hand wheel.

The invention discloses an industrialized circulating-water culture pond water-level control and sewage discharging integrated device. The industrialized circulating-water culture pond water-level control and sewage discharging integrated device includes a water tank main body arranged on the side wall of a culture pond; a water inlet and a water outlet are formed in the bottom of the interior ofthe water tank main body; the bottom of the water outlet is communicated with a main water return pipe of the culture pond through a pipeline; a three-way joint is connected to the bottom of the waterinlet through a vertical pipe, and two other connection ends of the three-way joint are communicated with a sewage discharging pipe and a main water discharging pipe respectively, wherein the main water discharging pipe is arranged at the bottom of the culture pond; a plug mechanism is arranged inside the water inlet and is located between the water inlet and the three-way joint. The industrialized circulating-water culture pond water-level control and sewage discharging integrated device is reasonable in structural design and convenient to operate and can completely replace a current ball valve or a butterfly valve or an electromagnetic valve or a pneumatic valve or a lifting valve, the material cost is greatly reduced, the manual operation cost and the pipe and trench building cost aregreatly reduced, and pipe pre-embedded sewage discharging can be achieved.

The invention provides a folding toilet bowl, comprising: a urinal; The urinal comprises a urinal body adapted to rotate between a horizontal direction and a vertical direction, a urinal edge adaptedfor a user to sit on, and a water storage mechanism. The urinal body comprises a urinal inner cavity, an opening on the urinal inner cavity, a water outlet and a sewage outlet inside the urinal innercavity, wherein the urinal edge is arranged along the opening, and the water outlet is adapted to be connected to an external water supply device; The water storage mechanism comprises: a blocking member disposed at an opening position not provided with the urinal edge and blocking completely or partially the opening position not provided with the urinal edge, the urinal body and the blocking member being formed as a water storage chamber adapted to store sewage when the urinal body rotates and rotates from the horizontal direction to the vertical direction. The invention can further reduce the floor area of the toilet bowl of the prior art.

The invention discloses a sewage draining type garbage can capable of identifying the weight of garbage. The sewage draining type garbage can comprises a can body, a dustbin and a sewage draining pipe. The sewage draining pipe penetrates in from the center of the bottom of the can body and communicates with an underground sewage draining pipeline. The garbage can further comprises a drying and deodorization device, a cavity is formed in the drying and deodorization device, and drying materials and deodorization materials are placed in the cavity. A hopper is arranged on the outer wall of the middle of the drying and deodorization device, a hopper reversed buckle is arranged at the bottom of the hopper, and the hopper reversed buckle is a pipe-shaped metal plate. A control module is arranged at the top of the can body, a display screen is arranged on the outer wall of one side of the can body, a weight sensor is further arranged on the inner side face of the top of the can body and placed on the lower side of the drying and deodorization device, and the weight sensor is in communication connection with the control module. By means of the garbage can disclosed by the invention, automatic filtering of water in garbage and sewage draining can be achieved, decaying of the garbage is avoided, undesirable odor of the garbage can is removed, and the living environment of people is improved; and the garbage in the dustbin can be weighed intelligently, and cleaning by sanitary workers is facilitated.

The invention discloses a municipal sewage pipeline, which comprises a main flow pipe, a connecting flange and a branch flow pipe, the connecting flange is arranged at the end of the main flow pipe, the branch flow pipe is fixed and communicated to the surface of the main flow pipe and is close to the end, and a flow inlet, a flow outlet, a horn-shaped flow guider and a backflow prevention device are arranged in the main flow pipe. The flow inlet is formed in the end of the main flow pipe and close to the branch flow pipe, the flow outlet is formed in the end, away from the flow inlet, of the main flow pipe, and the horn-shaped flow guider is fixed in the main flow pipe and located at the flow inlet. And the backflow prevention device is arranged in the main flow pipe, is close to the horn-shaped fluid director and is connected with the branch flow pipe in a matched manner. The invention relates to the technical field of municipal sewage disposal equipment. According to the municipal sewage pipeline, the purpose of backflow prevention is achieved, sewage backflow can be effectively prevented, the influence caused by sewage backflow is reduced, the service life of equipment is prolonged, the sewage discharge efficiency is high, and the use performance is improved.

The invention relates to an ultrasonic detection-based separation system for media with different specific gravity, and belongs to the technical field of liquid separation. The system is characterizedby comprising a liquid storage tank (5), wherein a medium input pipeline (1) for conveying a medium into the liquid storage tank (5) is arranged at the side part of the tank top of the liquid storagetank (5), a heavy medium output unit is arranged at the tank bottom of the liquid storage tank (5), three sets of ultrasonic detection units are arranged on the side part of the liquid storage tank (5) in order from top to bottom, each ultrasonic detection unit comprises an ultrasonic transmitting end and an ultrasonic receiving end, and each ultrasonic transmitting end and the corresponding ultrasonic receiving end are arranged symmetrically along the radial direction of the liquid storage tank (5). In the ultrasonic detection-based separation system for media with different specific gravity, multiple sets of the ultrasonic detection units are arranged, the detection of a light medium and a heavy medium is realized by monitoring the ultrasonic sound velocity, and thereby the separation of media with different specific gravity is realized.

The invention discloses a water inlet pipe capable of realizing primary filtration, and relates to the technical field of purification equipment. An upper connector is mounted at the upper end of a main water inlet pipe; a primary filtering net is aslant mounted on the inner upper side of the main water inlet pipe; a sewage discharge pipe is arranged at the lowest point of the primary filtering net; a sewage discharge valve is mounted on the sewage discharge pipe; two nano filtering nets are arranged on the lower side of the primary filtering net; an activated carbon filtering net is arrangedbetween the two nano filtering nets; a water collection barrel is mounted at the lower end of the main water inlet pipe; a water outlet connection threaded pipe is mounted at the lower end of the water collection barrel. The water inlet pipe disclosed by the invention has the advantages that the efficiency is improved, primary filtration and sewage discharge can be realized, blockage is easily avoided, and the water inlet pipe is convenient to use.

The invention relates to a cooling water circulating and recycling system for a normalizing furnace. The cooling water circulating and recycling system comprises crushing devices, settling ponds and filters, wherein the crushing devices are arranged at the lower parts of water collecting sumps; the output ends of the crushing devices are connected with the input ends of the settling ponds; the output ends of the settling ponds are connected with the filters; the filters are matched with aerial fog and water spraying devices; and the filters comprise coarse filters and fine filters. The cooling water circulating and recycling system disclosed by the invention has the beneficial effects that impurities in cooling water are crushed by the crushing devices; the particle size of the impurities in the cooling water can meet the requirement of the aerial fog and water spraying devices by filtering of the coarse filters and the fine filters layer by layer; normal work of spray ports of spray nozzles of aerial fog and water spraying pipes is ensured; and the service life of equipment is prolonged. The cooling water circulating and recycling system is simple in operation; and the cooling water is recycled, so that the operation cost is reduced.

The invention discloses an electric water heater and a water supply and discharge device for the same. The water supply and discharge device comprises a body portion, a sliding water retaining piece and a driver. A chamber is formed inside the body portion, a first connector and a second connector communicated with the chamber are arranged at the upper end of the body portion at an interval along the horizontal direction, a third connector matched with the first connector in the vertical direction is arranged on the body portion, and a fourth connector matched with the second connector in the vertical direction is arranged on the body portion. The sliding water retaining piece can slide in the chamber in the horizontal direction, when the sliding water retaining part moves to the position connecting the first connector and the second connector, the second connector and the fourth connector are disconnected, and when the sliding water retaining part moves to the position disconnecting the first connector and the second connector, the second connector and the fourth connector are connected. The driver is connected with the sliding water retaining piece so as to drive the same to move along the horizontal direction. The water supply and discharge device for the electric water heater is quite convenient to operate.

The invention discloses a high-efficiency energy-saving triple-effect forced circulation evaporation system, and belongs to the field of evaporation systems. According to the triple-effect forced circulation evaporation system, firstly, a circulation flash evaporation device is used for carrying out flash evaporation treatment on a raw material liquid, organic matter in the raw material liquid is separated out, then, triple-effect forced circulation evaporation is carried out on the raw material liquid, secondary steam of a front-effect separator is used as a heat source of the rear-effect heater, steam consumption is reduced, the raw material liquid can be concentrated to a set concentration, then the concentrated liquid is crystallized through a crystallization device, continuous centrifugal operation of the centrifugal machine can be realized through optimal design of the crystallization device and utilization of a group of thickeners and the centrifugal machine, and more raw material liquid treatment can be completed by using less equipment, so that the equipment in the whole system is more simplified, the equipment investment cost is reduced, the raw material liquid treatment capacity in unit time can reach 9000 kg / h, the working efficiency of the triple-effect circulation evaporation system is greatly improved, the operation energy consumption of the system is effectively reduced, and the energy can be effectively saved by 30%.

The invention discloses a trash bin with a dirt discharging function, comprising a bin body, a trash barrel and a dirt discharge pipe; the dirt discharge pipe is passed in from the bottom center of the bin body and is communicated with an underground dirt-discharging duct; the trash bin also comprises a drying deodorizer, the inside of the drying deodorizer is provided with a cavity filled with adrying material and a deodorizing material, the outer wall of the middle of the drying deodorizer is arranged in funnel shape, the bottom of the funnel is provided with a funnel reversed fastener thatis a tubular metal sheet, and the funnel reversed fastener is fastened to the dirt discharge pipe; the outer wall, except for the funnel, of the drying deodorizer is provided with drying holes; the bottom of the trash barrel is provided with a slope; the connection of the slope with the sidewall of the trash bin is provided with filter holes that face an opening of the funnel. The trash bin disclosed herein can provide automatic filtration of water in trash and dirt discharging, decomposing of the trash is avoided, fouling odor of the trash bin is removed, the living environment of people isimproved, and people's livelihood is benefited.

A multifunctional aquarium oxygenating circulating filtering device comprises a sealing mounting base, a flow guiding pipe, an air pump, an air pipe, air discharging devices which are homogeneously distributed, a filtering device, a power supply and the like, wherein the sealing mounting base is at least provided with a mounting and fixing device for the air pump, the base is provided with a cover, the bottom of the flow guiding pipe is provided with a flow guiding device, the flow guiding pipe is at least provided inside with the air discharging devices which are homogeneously distributed, one end of the air pipe is connected with the air pump and the other end is provided with the air discharging devices which are homogeneously distributed, the air discharging devices are arranged to a certain depth inside the flow guiding pipe or at the bottom of the flow guiding pipe and are connected with the air pipe, the upper portion of the flow guiding pipe is provided with a water outlet which is provided with a decontaminating device, the base is provided with a device which is connected and fixed with an aquarium, and the sealing mounting base and the flow guiding pipe are sealed and separated from outside air. The device can realize oxygenation, water circulation, filter, decontamination and homogeneous heating. The device is low in energy consumption, simple in system structure, reliable and low in production costs.

The invention provides a water-free vacuum excrement collector system, relates to the technical field of vacuum toilets, and solves the technical problems that in the prior art, an existing vacuum toilet takes water as a pushing medium, and the water is not easy to separate from dirt and cannot be recycled. The system comprises a shell and a gas cylinder shell type vacuum sewage discharge device,wherein a containing cavity and a separation cavity which are communicated with each other are formed in the shell, a pushing medium is contained in the containing cavity, and the containing cavity isconnected with a sewage discharging body; the pushing medium can enter the sewage discharging body to flush sewage; and the sewage discharging body and the separation cavity are both connected with the gas cylinder shell type vacuum sewage discharge device, the gas cylinder shell type vacuum sewage discharge device can convey sewage in the sewage discharging body to the separation cavity, and thepushing medium separated by the separation cavity can flow back to the containing cavity. Compared with an existing vacuum toilet, the water-free vacuum excrement collector system is compact in structure, small in size, convenient to install, capable of achieving no-water flushing and discharging, capable of saving energy and reducing emission, good in experience feeling, sanitary and safe.

The invention discloses a blow-down valve and a disassembly-free filter. The blow-down valve comprises a valve body and a driving mechanism for driving a valve element in the valve body to rotate; the device further comprises a cleaning brush. The cleaning brush is fixed to the driving mechanism or the valve element, and when the driving mechanism acts, the cleaning brush is in linkage with the driving mechanism and can clean the container wall or the pipe wall or the filter screen. The blow-down valve and the disassembly-free filter are easy to implement and convenient to use.

The invention relates to a drum-type backwashing dirt separator. The drum-type backwashing dirt separator comprises a drum body, the drum body is equipped with a water inlet and a water outlet, a filter mechanism is installed in the drum body, the filter mechanism is a filter screen assembly, the filter screen assembly comprises a rotating shaft, a supporting plate and a drum-shaped filter screen,and the filter screen is installed on the rotating shaft through the supporting plate and synchronously rotates along with the rotating shaft; a water baffle is further installed in the cylinder bodyand divides the filter screen into a filter bin and a backwashing bin, a dirt draining outlet is formed in one side, corresponding to the filter bin, of the drum body, and a sewage draining outlet isformed in one side, corresponding to the backwashing bin, of the drum body. The dirt separator has a wider application range for circulating water, adopts an integrated design and a pure physical treatment mode, does not need chemical agents, and is low in resistance and large in flow. And the operation cost is extremely low, operation is easy and convenient, and maintenance is convenient.