27 results about "First flush" patented technology

The utility model relates to a cast iron base with a dust removal function and a grinding and polishing workstation, and belongs to the field of mechanical equipment. The dust removal base comprises a base body and is structurally characterized by further comprising a dust removal system which is matched with the base body. A threading groove is formed in the bottom of the base main body, a dust removal groove is formed in the top of the base main body, a grating net plate is arranged above the dust removal groove, a sedimentation tank and a water storage tank are further arranged at the top of the base main body, a filter plate is arranged between the sedimentation tank and the water storage tank, the dust removal groove is located above the sedimentation tank, and the grating net plate is located above the water storage tank. A liquid level sensor is arranged in the reservoir, a first flushing slope and a second flushing slope are arranged on the two sides of the dust removal groove correspondingly, and a first flushing groove and a second flushing groove are formed above the first flushing slope and the second flushing slope correspondingly; the first flushing tank and the second flushing tank are both matched with a circulating mechanism in the dust removal system.

The application relates to the technical field of water purifiers, and discloses a water purifier flushing method and device, a water purifier and a storage medium. The method comprises the following steps: a first flushing signal is acquired; in response to the first flushing signal, it is judged whether the water pressure of a pure water discharge pipeline is greater than or equal to a preset water pressure; if the water pressure of the pure water discharge pipeline is greater than or equal to the preset water pressure, the water inlet electromagnetic valve is controlled to be closed, the booster pump is controlled to be opened, and the filtering system is controlled to be opened; the filtering system is controlled to prepare tap water remaining in the booster pump and the filtering system into pure water, and a ready signal is obtained; in response to the ready signal, the flushing electromagnetic valve is controlled to be opened, the booster pump is controlled to be pressurized, and the filtering system is controlled to flush a filter element; the filter element can be flushed by using pure water, the flushing effect is improved, the service life of the filter element is prolonged, the filter element is flushed by using pure water, the flushing effect is good by using less pure water, and therefore, water sources are saved.

The application discloses a water route structure, a flushing method and a water purifier with a built-in water tank. The water route structure comprises a water inlet route and a backflow route. The backflow route is connected with the water inlet route. A filter assembly is arranged on the water inlet route. The water inlet end of a water outlet route is connected with the wastewater output end of the filter assembly. The water inlet route comprises a first water inlet route. A water tank is arranged on the first water inlet route. The water inlet end of the water tank is connected with the water outlet end of the filter assembly. The backflow route comprises a first flushing water route and a water outlet route. A first straight-flow pump, an evaporation capillary and a first one-way valve are sequentially arranged on the first flushing water route. The first flushing water route is communicated with the water tank. A sensor assembly is arranged on the water outlet route. The application can realize pickling strategy of the water purifier with the built-in water tank based on the filtered pure water, flush the scaling and clogging of the water purifier, improve the descaling effect and rationality, save water resources and realize sustainable application.

The utility model discloses garbage separation equipment of a sweeping truck or a washing and sweeping truck, which belongs to the technical field of garbage separation and comprises a shell, a first flushing device, a first conveying device, a second conveying device, a first separation tank and a second separation tank. The first separating tank is communicated with the feeding port and the first discharging port, the second separating tank is communicated with the second discharging port, a filtering piece is arranged between the first separating tank and the second separating tank, the first flushing device is installed at the feeding port, the first conveying device is installed in the first separating tank, and the second conveying device is installed in the second separating tank. Liquid is sprayed through the first cleaning device, the effects of dust falling, liquid supplementing and garbage cleaning are achieved, mud and sand can be separated into water and enter the second separation tank through the filtering piece, the separation equipment is simple in structure and low in cost, and the mud and sand separation effect can be improved by cleaning garbage through the first flushing device.

The utility model discloses a vertical flow type sedimentation tank and sewage treatment system, wherein the vertical flow type sedimentation tank comprises a tank body, a first flushing pipe and a second flushing pipe are arranged in the tank body in a high-low distribution mode, the first flushing pipe and the second flushing pipe are located at the position of a mud bucket of the tank body, and at least one of the first flushing pipe and the second flushing pipe extends out of the tank body. The left side or the right side of a first branch pipe of the first flushing pipe and the left side or the right side of a second branch pipe of the second flushing pipe are provided with spraying holes so that media sprayed out of the first branch pipe and the second branch pipe can form rotational flow. According to the vertical flow type sedimentation tank disclosed by the utility model, at least two layers of flushing pipes which are distributed in a high-low manner are adopted, so that the coverage range during cleaning can be effectively increased, and meanwhile, the two layers of flushing pipes adopt a manner of arranging spray holes on one side, so that a cleaning medium can effectively form rotational flow, and the cleaning effect can be better improved.

This invention provides a digging and flushing device for a submerged shaft boring machine. The cutting head is driven to rotate within a housing, using its surface cutting teeth to break up the rock and soil at the bottom and walls of the shaft. A slurry pump is mounted on the housing. By placing a first flushing component at a first predetermined position between the slurry pump inlet and the cutting head, and a second flushing component at a second predetermined position after the cutting head has rotated past the slurry pump inlet, the first flushing component performs high-pressure flushing in the suction chamber area where soil is first generated and most prone to adhesion. This disrupts the adhesive structure of the soil at its source, preventing it from adhering to the cutting head surface and forming mud cakes. Even if a small amount of soil is not flushed away by the first flushing component, the second flushing component performs secondary cleaning within the digging chamber, further reducing the risk of mud cake formation. This dual flushing mechanism significantly improves the adaptability of the cutting head in strata prone to mud cake formation, such as argillaceous clay and silty mudstone. The synergistic effect of both components achieves full-process flushing coverage for each rotation cycle of the cutting head.

The present invention provides a sludge backwashing system for flushing a sludge pipe, comprising a flushing component, a sensor, and a controller. The flushing component comprises a flushing three-way valve, a first port of the flushing three-way valve being connected to a flushing tank, a second port of the flushing three-way valve being connected to a first flushing pipe, a bottom end of the first flushing pipe being connected to a starting end of the sludge pipe, a third port of the flushing three-way valve being connected to a second flushing pipe, a third flushing pipe being vertically arranged at the bottom end of the second flushing pipe, a plurality of first water outlets being arranged at the bottom of the third flushing pipe, and the plurality of first water outlets being connected to an upper wall of the sludge pipe, a sensor being arranged in the sludge pipe for detecting a sludge state in the sludge pipe, a controller being arranged on the flushing three-way valve and electrically connected to the sensor, and the controller being used to receive a sludge state signal detected by the sensor, and to control the switch state of the three ports of the flushing three-way valve according to the sludge state signal.

The invention relates to a ship navigation system and method, and the system comprises a ship lift, a main channel, and a dredging mechanism. The ship lift is arranged in the main canal, the main canal is provided with a dredging area, and the dredging area is located at an inlet of the ship lift; the desilting mechanism comprises a flushing part and an inflation part, the inflation part is provided with an inflation pipe used for inflating the desilting area, the flushing part comprises a first flushing pipe and a second flushing pipe, a flushing opening of the first flushing pipe faces the bottom of the desilting area, and a flushing opening of the second flushing pipe is higher than that of the first flushing pipe; and the water flow in the desilting area forms a vortex. According to the scheme, ship navigation can be prevented from being affected by sediments such as silt accumulated at the bottom of the ship lift, and normal operation of ship navigation is guaranteed.

A device for automatically and comprehensively flushing and discharging sediment in a water storage reservoir area in a long-acting mode through hydraulic power is characterized in that a stone retention area, an overflow dam transversely penetrating through a river channel and a first-stage temporary silt area are sequentially built on a sediment deposition body in the river channel near a water inlet of the reservoir area, and second flow guide embankments which are distributed in a staggered mode are arranged on river banks on the two sides of the first-stage temporary silt area; a first water distribution gate is built at the rear end of the first-stage temporary silt area, and a first compound sand discharge gate is built on one side of the first water distribution gate; a first flushing gate of which the rear side is communicated with the desilting tunnel / channel is built in the reservoir area on the rear side of the first diversion gate; the desilting tunnel / channel is built on one side of the reservoir area or in a mountain on one side of the reservoir area, the front end of the desilting tunnel / channel is connected with the first compound desilting gate, and an outlet in the rear end of the desilting tunnel / channel is communicated with the first desilting gate and the second desilting gate. The device has the advantages of being easy to build, operate and maintain, low in silt discharging cost, high in efficiency and the like, silt in a water storage reservoir area can be automatically and comprehensively flushed and discharged in a long-acting mode only through limited hydraulic power, and the silt discharging device can benefit the future in a long-acting mode.

The utility model relates to a rotary flushing sewage discharging closestool which comprises a pot body with an opening in the top, a seat ring arranged at the top of the pot body, a cap head connected to the lower end of the front side wall of the pot body, a baffle extending to the position above the rear end of the cap head, a siphon sewage discharging pipe connected to the rear end of the cap head to form a trap, and a water feeding channel arranged on the siphon sewage discharging pipe. The first flushing water channel is arranged on the back of the rear side wall of the pot body, the upper end of the first flushing water channel is communicated with the upper water channel, the lower end of the first flushing water channel extends to the trap and tangentially enters from the trap, and a lower opening of the first flushing water channel is located below the water sealing surface; the second flushing water channel is arranged in the seat ring, one end of the second flushing water channel is communicated with the upper water channel, and the other end extends towards the front end of the pot body along one side of the seat ring close to the first flushing water channel; according to the scheme, rotating water flow is formed through tangential entering of the pipeline, water rotates in the trap, dazzling flushing is formed in the blow-off pipe, and the effect of flushing the whole inner wall of the blow-off pipe is achieved.

The utility model relates to the technical field of filtering, and discloses a filtering device, a water circulation system and road cleaning equipment.The filtering device comprises a loading body, a filtering assembly and a first washing unit, a cavity is formed in the loading body and used for containing sewage, meanwhile, the loading body is provided with an input port and an output port, and the sewage enters the cavity through the input port and flows into the cavity through the output port; the bottom of the cavity is designed to be an inclined guide face, the output port is located at the first end, namely the end with the lowest horizontal height, of the inclined guide face, it is guaranteed that fluid can be smoothly guided out, and the filtering assembly comprises a membrane assembly, is installed in the cavity and is responsible for filtering sewage. The first flushing unit is connected to the loading main body, extends into the chamber and is used for flushing the membrane module so as to maintain the filtering efficiency and avoid the influence of dirt accumulation on the equipment performance, and the design of the filtering device optimizes the flowing path of sewage, improves the filtering and flushing efficiency and ensures the efficient and stable operation of the filtering system.

The utility model provides a closestool which comprises a closestool body, a first flushing pipeline connected to the side face of the inner wall of the closestool body, and a second flushing pipeline connected to a first section of a drainage channel of the closestool body. The third flushing pipeline is connected to the third section of the drainage channel; when the drainage channel is not blocked, for the siphon type closestool, the third flushing pipeline flushes the drainage channel, negative pressure can be rapidly formed in the drainage channel, the siphon effect is enhanced, dirt and sewage are rapidly discharged, and the blocking condition is reduced; and for a direct flushing type closestool, the third flushing pipeline performs high-pressure flushing on the dirt flushed into the third section by the first flushing pipeline and the second flushing pipeline, and the dirt can be quickly flushed away from the third section, so that the third section is prevented from being blocked. And when the third section is blocked, high-pressure water of the third flushing pipeline can effectively flush away blockages regardless of a siphon closestool or a direct flushing closestool, so that the problem of blockage is solved.

The utility model relates to the field of waste gas absorption equipment, and discloses waste gas environmental pollution abatement and absorption equipment, which comprises a box body, a waste gas treatment structure is fixedly arranged in the box body, the waste gas treatment structure comprises a shunt pipe, gas nozzles which are uniformly distributed are fixedly arranged above the shunt pipe, and the gas nozzles are communicated with the shunt pipe. And a first flushing pipe, a filter plate, a second flushing pipe, a third flushing pipe and a demisting layer are sequentially and fixedly arranged above the gas spray head from bottom to top. When equipment is used, waste gas is sprayed into water from the gas nozzles of the shunt pipes, dust and water-soluble impurities can be removed, water-insoluble impurities in the gas can be filtered by the filter plate, liquid carried in the gas can be intercepted by the demisting layer, residual pollutants in the liquid can be prevented from being brought out, and the water-soluble impurities in the gas can be removed by the demisting layer. And the washing pipe can clean the filter plate and the demisting layer, the gas purification effect can be improved conveniently, the waste gas introduction speed can be controlled through the waste gas introduction structure, and the waste gas can be fully purified.

The invention provides a vertical flow direction shallow layer grouting plugging treatment method and device under the flowing water condition. The method comprises the steps that a target treatment area is determined according to obtained geological information of a mining area; a target grouting hole is constructed in the target treatment area, flushing fluid is provided for the target grouting hole, and the flushing fluid leakage amount of the target grouting hole is determined according to the obtained grouting working condition information of the target grouting hole; in response to the fact that the flushing fluid leakage amount of the target grouting hole is larger than a preset leakage threshold value, target grout matched with the target treatment area is determined based on the first flushing fluid data; and the target grout is conveyed to the target treatment area through the target grouting holes, so that a waterproof curtain for preventing water flow in the vertical flow direction from passing through the target treatment area is formed in the target treatment area. According to the method, accurate plugging and efficient treatment can be conducted on the target treatment area, the slurry dosage is reduced, the grouting construction period is shortened, the waterproof function can be stably maintained for a long time, and therefore water-preserved mining and water system maintenance are achieved.

The embodiment of the application relates to a mud circulating system, and belongs to the technical field of tunnel construction equipment. The embodiment of the application aims to solve the technical problem that the flushing performance of the mud circulating system in the related art is weak and the mud circulating system cannot be applied to large-diameter or super-large-diameter tunnel engineering. The mud circulating system comprises: a mud treatment device; a mud inlet pipeline assembly that is connected to the mud treatment device and a shield body and is used for conveying mud from the mud treatment device to the shield body; at least one flushing pipeline assembly that comprises a first flushing pipeline, a second flushing pipeline and a switching module, the first flushing pipeline is connected to the mud inlet pipeline assembly and the shield body; the second flushing pipeline is parallel to the first flushing pipeline, is connected to the mud inlet pipeline assembly and the shield body, and is provided with a booster pump; and the switching module is used for adjusting the flushing mode of the first flushing pipeline and the second flushing pipeline. The mud circulating system can be applied to large-diameter or super-large-diameter tunnel engineering.

The utility model discloses a self-flushing filtering device. The self-flushing filtering device comprises a box body, a water inlet pipe, a first water outlet pipe, a first flushing assembly and a first blow-off pipe, a partition plate is arranged in the box body to divide an inner cavity of the box body into a first area and a second area, a connecting channel is formed between the upper end of the partition plate and the top wall of the box body to communicate the first area with the second area, a filtering assembly is arranged in the first area and divides the first area into a water inlet area and an overflow area, and the water inlet area is located below the overflow area. The water inlet pipe is connected with the water inlet area. The first water outlet pipe is connected with the second area. The first flushing assembly is located above the filtering assembly and used for flushing the filtering assembly. And the first blow-off pipe is connected with the water inlet area. The self-flushing filtering device can filter impurities in water and self-clean the filtering assembly, frequent replacement of the filtering assembly is avoided, time and labor are saved, the working efficiency is improved, and the self-flushing filtering device can be used for filtering circulating cooling water in the chilling casting process of thin films such as low-temperature heat-sealing matt films and the like.

The application discloses a flushing faucet arrangement method and device based on building water supply and drainage, and a medium, and belongs to the technical field of building water supply and drainage design, and is used for solving the technical problems that the existing building water supply and drainage design is more dependent on manual operation, and is prone to low efficiency, poor consistency, high error rate and complicated modification. The method comprises the following steps: performing position identification processing on a building water supply and drainage model related to a basement flushing faucet, and obtaining object type information to be arranged; performing distance position judgment on a sump area in the object type information to be arranged related to a surrounding wall type, and obtaining a first flushing faucet arrangement strategy; performing distance position judgment on a door position area related to the surrounding wall type, and obtaining a second flushing faucet arrangement strategy; and determining a flushing faucet arrangement strategy of the building water supply and drainage model based on the first flushing faucet arrangement strategy and the second flushing faucet arrangement strategy.

The invention relates to a coal slime water treatment system and method.The coal slime water treatment system comprises at least one collecting pool, a treatment assembly, a recycling pool and a drainage assembly, the collecting pool is used for collecting coal slime water, and the treatment assembly is communicated with the collecting pool and used for treating the coal slime water in the collecting pool; the recycling pool is used for recycling the treated slime water, the drainage assembly comprises a plurality of drainage ditches, the drainage ditches are used for conveying the slime water to the collecting pool, and a plurality of first flushing nozzles are arranged in the drainage ditches at intervals in the extending direction of the drainage ditches and used for flushing the drainage ditches. According to the slime water treatment system, the first flushing nozzles are arranged in the drainage ditch and can be started when the drainage ditch does not work to flush impurities such as residual coal slime in the drainage ditch, and the situation that a large number of impurities are accumulated in the drainage ditch along with use of the drainage ditch, workers need to clean the impurities regularly in the follow-up process, and a large number of manpower resources are wasted is avoided.

The utility model provides a mute lower flushing structure of a closestool. The flushing structure is installed in an installation hole of a water storage cavity of the closestool in a sealed mode. The inner connecting ring part is provided with a first flushing hole, the outer connecting pipe part is provided with a second flushing hole communicated with the first flushing hole, and the hole wall of the first flushing hole is provided with a pressurizing slope which is gradually shrunk in the flushing flow direction of the bottom flushing water so that the bottom flushing water can be pressurized and flushed. And the circulation caliber of the water outlet A of the first flushing hole is smaller than that of the water inlet B of the second flushing hole. The circulation caliber of the water outlet A of the first flushing hole is designed to be smaller than the circulation caliber of the water inlet B of the second flushing hole, so that only the bottom flushing water pressure can be increased, and the flushing force is increased; in addition, the water outlet amount of bottom flushing water can be guaranteed, the bottom flushing water noise is low in the water outlet process, and the user experience is good.

The utility model discloses a stirring and flushing device for an adjusting tank, which relates to the technical field of sewage treatment and comprises two rotating rods rotatably mounted close to two sides in an adjusting tank body, a stirring motor is mounted at the front end of the adjusting tank body and is in transmission connection with the rotating rods through a transmission wheel set, and the rotating rods are connected with the adjusting tank body. A stirring wheel is arranged at the front position of the outer ring of the rotating rod, and the rear position of the outer ring of the rotating rod; through the second flushing water pipe, the first flushing water pipe and the backflow water pump, the large influence of impurity accumulation on the water storage capacity of the adjusting tank body is avoided, the drainage effect is conveniently improved, the large influence of impurity standing accumulation on drainage is prevented, and the problems that in the using process of a traditional adjusting tank, deposition is likely to be caused, the amount of deposited garbage is large, and large water storage space is occupied are solved; the problems that the water storage capacity of the regulating reservoir is affected, the sewage discharge efficiency is low, and meanwhile, the sewage is easily blocked by settled garbage during discharge and is difficult to discharge in time are solved.

The invention discloses a flushing faucet arrangement method and equipment based on building water supply and drainage and a medium, belongs to the technical field of building water supply and drainage design, and is used for solving the technical problems of low efficiency, poor consistency, high error rate and tedious modification caused by dependence on manual operation in the existing building water supply and drainage design. The method comprises the following steps: carrying out position identification processing on a basement flushing faucet on a building water supply and drainage model to obtain to-be-arranged object type information; distance position judgment under related surrounding wall types is conducted on a sump area in the type information of the objects to be arranged, and a first flushing faucet arrangement strategy is obtained; performing distance position judgment on the door position area under the related surrounding wall type to obtain a second flushing faucet arrangement strategy; and determining a flushing faucet arrangement strategy of the building water supply and drainage model based on the first flushing faucet arrangement strategy and the second flushing faucet arrangement strategy.

According to the mute energy-gathering flushing closestool, a flushing circle channel is arranged at the top of an inner container, and a blow-off pipeline is arranged at the bottom of the inner container; the flushing circle channel is provided with a first flushing hole and a second flushing hole, the second flushing hole is formed in any side of the flushing circle channel, and the first flushing hole is formed in the rear side of the flushing circle channel; a first flushing face and a second flushing face which are connected with each other are arranged at the front end of the inner container from top to bottom, the first flushing face and the second flushing face have different inclination angles, water flowing out of the first flushing hole faces the first flushing face to form first water flow, and water flowing out of the second flushing hole faces the second flushing face to form second water flow. The first water flow and the second water flow converge into third water flow to flush the blow-off pipeline. A spraying hole structure of the closestool is omitted, the position and the water outlet direction of a flushing hole are optimized, water flow is guided to generate vortexes through the special design of an inner container, the vortexes are gathered into water flow with higher pushing force to push dirt to enter a dirt discharging pipeline, and due to the fact that the spraying hole is omitted, sound in the flushing process of the closestool is weakened.

The utility model discloses an ultrasonic self-cleaning device for a large evaporator, which comprises an evaporation barrel and four water rings which are mutually attached and surround the periphery of the evaporation barrel, and the evaporation barrel and the water rings are respectively subjected to ultrasonic self-cleaning through a first transducer and a second transducer. Sewage and garbage are discharged through a first drainage pipe and a second drainage pipe respectively, a vortex drainer at the top of the first drainage pipe can enhance the cleaning effect, and finally the inner wall of the first drainage pipe is flushed through a first flushing assembly and a second flushing assembly; the ultrasonic cleaning device has the advantages that cleaning is conducted through ultrasonic waves, the cleaning effect is good, related cleaning structures do not need to be mounted or dismounted before and after cleaning, and the operation difficulty of workers is reduced; the device is cleaned through the flushing assembly, so that the cleaning effect is prevented from being affected by sewage and garbage residues; and a vortex drainer is arranged at the top of the first drainage pipe, so that vortexes generated during drainage are enhanced, and sewage and garbage generated after ultrasonic cleaning are conveniently taken away.

The utility model relates to rotating disc type filtering equipment, which belongs to the field of filtering equipment and comprises a frame, a first flushing system, a driving system and a cleaning belt are arranged on the frame, the cleaning belt is of a vertical annular structure, and the driving system is used for driving each screen plate to perform continuous plane rotation action. The direction of the rotation action is matched with the annular structure, and the first flushing system is used for flushing dirt on the screen plate; the cleaning belt comprises a plurality of net plates which are sequentially connected end to end to form a vertical annular structure, and all the net plates are connected with the driving system. The device is compact in structure and small in occupied space; compared with the prior art, large water pressure cannot be formed, the net plate can be replaced on the ground, channel drainage is not needed, and the rotary chain in the track is free of maintenance under the normal condition, easy to disassemble and convenient to maintain; the transmission is simple, and the force applied to the screen plate by the water flow is transmitted to civil engineering, so that the operation stability is high.

The invention relates to the technical field of purified drinking water treatment systems, in particular to a multi-scene purified drinking water treatment system, which comprises a central control unit, a water purification unit and a control unit, the water return pipe assembly comprises a water return main pipe and a water return branch pipe, the output end of the water return main pipe is connected with the input end of the central control unit, the output end of the water return branch pipe is connected with the outer wall of the water return main pipe, and the other end of the water return branch pipe is connected with terminal drinking equipment; the dispersing assembly comprises a flushing driving part, a water pumping pipe and a first flushing pipe, the flushing driving part is arranged on one side of the water return main pipe, one end of the water pumping pipe is inserted into the outer wall of the water return branch pipe, the other end of the water pumping pipe is connected with the input end of the flushing driving part, and one end of the first flushing pipe is connected with the output end of the flushing driving part; the other end of the first flushing pipe is obliquely inserted into the water return main pipe, and the output end of the first flushing pipe is aligned to the joint of the water return main pipe, so that the dredging convenience after the purified drinking water treatment system is blocked can be improved.

The utility model provides a kind of top rod formula tap water and water composite flush control valve, including water storage component, the water storage component, the water storage component includes water storage tank, the bottom of the water storage tank is integrally formed and is communicated with the installation of water outlet pipe, the inside of the water storage tank is equipped with tap water control valve, the tap water control valve includes upper cover body, the bottom of the upper cover body is equipped with water control cylinder, the outer wall of the water control cylinder is opened with several water inlet holes, the middle of the upper cover body is equipped with the one end of top rod with screw thread.The top rod formula tap water and water composite flush control valve, simple structure, under the delivery of electromagnetic valve to water, water pressure breaks open cover plate and enters the inside of pumping valve to carry out first flush, piston receives the push of water pressure and triggers top rod to rise and drive water control cylinder to rise, so that tap water enters the inside of water storage tank and stores tap water, both make water resources be fully utilized, save water resources, also use tap water to flush clean residual water in closestool, reduce the negative effect produced by water flush.

The utility model discloses a contaminated soil pretreatment oversize product flushing device, which relates to the technical field of flushing, and comprises a cleaning machine body, a flushing control handle, a first flushing component, a second flushing component, a moving component and a support, and the flushing control handle is erected on the cleaning machine body; the first flushing assembly is mounted at one end of the flushing control handle; the second flushing assembly is mounted at the top of the cleaning machine body; the moving assembly is arranged between the first flushing assembly and the second flushing assembly; the supporting bracket is fixed to the surface of the cleaning machine body. Through the arrangement mode that the first flushing assembly, the second flushing assembly and the moving assembly are matched, the multiple high-pressure gun heads can flush materials on the screen at different angles, the flushing efficiency is improved, multiple flushing can be conducted, the efficiency of flushing large materials on the screen is improved, and meanwhile the cleaning machine is matched with movement of the cleaning machine body, so that the cleaning efficiency is improved. The cleaning device is suitable for cleaning of large-occasion contaminated soil pretreatment oversize products.