3429 results about "Sewage outfall" patented technology

The invention relates to the technical field of water pollution traceability, and particularly discloses a river pollutant traceability system and method based on digital twinning, and the system comprises a water body sampling module which is used for obtaining the current water quality data of a preset region of a target river; the model construction module is used for constructing a digital twinborn model according to the river topographic data and the current water quality data and by fusing the historical hydrological data, the real-time meteorological data and the drain outlet distribution topological graph; the data analysis module is used for performing spatial-temporal feature extraction on a pollutant diffusion path in the digital twinborn model by utilizing a graph convolutional neural network, applying dynamic correction pollution source position probability distribution in combination with Bayesian inference, and generating a traceability path thermodynamic diagram; and the pollution traceability module is used for obtaining a pollutant traceability result according to the confidence coefficient threshold of the traceability path thermodynamic diagram. According to the method, the efficiency and the accuracy of tracing the river pollutants in the complex dynamic environment can be remarkably improved, and technical support is provided for ecological safety and precise treatment of a drainage basin.

The invention discloses a surface water river-entering sewage draining exit pollution abnormity tracing method and device based on intelligent Internet of Things. The method comprises the following steps: constructing a database according to surface water pollution basic data; all pollution sources in the database are divided into different levels of pipeline logic relations according to the upstream and downstream communication relation of the land parcel area, the pipe network and the water system, and a pollution source-land parcel-pipe network-monitoring station intelligent Internet of Things grid is constructed; carrying out preprocessing and feature analysis on all data in the intelligent Internet of Things grid to construct a model database; a traceability model and a pollution contribution model are built based on the model database, the traceability model is used for calculating the pollution contribution rate of each pollution source, and a target discharge port or a target pollution discharge node is determined according to the pollution contribution rate; the pollution contribution model is used for generating and displaying a pollution contribution value of the target discharge port or the target pollution discharge point in response to an input instruction. The problem that a pollution source cannot be quickly and accurately determined in surface water environment management is solved.

The utility model discloses an anti-corrosion washing tower easy to clean, and particularly relates to the technical field of washing towers, the anti-corrosion washing tower easy to clean comprises a washing tower, the upper end and the lower end of the washing tower are respectively provided with a smoke exhaust port and a drain outlet, and through a spraying mechanism, a hollow shaft is driven by a motor to drive a spraying ring to rotate, and meanwhile a piston is driven to reciprocate left and right in a transmission mode. Spraying liquid is continuously pushed to enter the spraying ring and is sprayed out through the spraying head, spraying is more uniform so that the spraying liquid can make contact with waste gas, meanwhile, the hollow shaft can drive the scraping plate to clean dirt accumulated on the inner wall of the washing tower and drive the blades to flap the waste gas to make contact with and be mixed with the spraying liquid, the waste gas treatment effect is improved, the spraying liquid can be recycled, and resources are saved. The washing tower and internal parts are made of corrosion-resistant materials, so that the corrosion-resistant effect is improved, and the service life is prolonged; and through the anti-blocking assembly, the knocking block can be continuously driven to impact the filter screen to vibrate, so that cleaned dirt and the like are prevented from being accumulated to block the filter screen and influence the filtering effect and the circulation of spraying water.

The present invention proposes a method and device for detecting small targets of sewage outlets in aerial images based on improved YOLOv8. The method uses drone aerial photography technology to collect images of sewage outlets at different heights, angles, time periods and weather conditions, and improves the diversity and representativeness of training data through a variety of data enhancement technologies (such as multi-scale training, random rotation, color enhancement, etc.). In the improved YOLOv8 model, STN and GhostModule are combined to further improve the robustness and reasoning speed of the model under complex geometric changes. Compared with traditional target detection methods, the improved YOLOv8 model of the present invention has higher accuracy and recall rate in small target detection tasks, especially the robustness and generalization ability under complex backgrounds have been significantly improved. The method provides an efficient and reliable solution for sewage outlet detection in drone aerial images, which can significantly improve the intelligent level of water environment monitoring.

The invention discloses an impeller assembly, a pre-filter applying the impeller assembly and a water consuming system, and relates to the technical field of pre-filters, the impeller assembly comprises an impeller body and a mounting seat, the impeller body is provided with a connecting part, and the connecting part is used for being in transmission connection with an outer framework of the pre-filter; the mounting seat is provided with an impeller cavity, the impeller body is rotatably mounted in the impeller cavity, and one axial side of the mounting seat is provided with a first water inlet communicated with the impeller cavity and the outside of the mounting seat; a second water inlet communicated with the impeller cavity and the outside of the mounting seat is formed in the peripheral side of the mounting seat; a water outlet communicated with the impeller cavity and the outside of the mounting seat is formed in the other axial side of the mounting seat; and the water outlet is used for being communicated with a drain outlet of the pre-filter. According to the technical scheme provided by the invention, the flushing efficiency and the drainage efficiency of the pre-filter can be improved; the water flow drives the outer framework to rotate, so that the self-cleaning capability and the filtering effect of the equipment are further improved.

The invention relates to the technical field of water environment monitoring, and discloses a sewage detection and traceability system based on multi-source data fusion. The system comprises an unmanned aerial vehicle data acquisition module, an edge end preprocessing module, a cloud data fusion and modeling module, a traceability decision module and a closed-loop optimization module, and all the modules work cooperatively to realize sewage detection and traceability full-process automation. Hyperspectral, thermal infrared, LiDAR and meteorological data are collected in an integrated mode through a multi-source sensor, pollution area identification, pollutant concentration quantification, sewage draining exit positioning and pollution diffusion path tracing are accurately completed through edge end preprocessing and cloud deep fusion modeling, a detection strategy is dynamically adjusted through a closed-loop optimization mechanism, and the detection accuracy is improved. And high precision, high efficiency and real-time response of sewage detection under complex terrains are realized.

The utility model discloses a reverse osmosis membrane testing device which comprises a testing table, a placing groove, a valve, a water storage tank, a water suction pump and a water conveying pipe hydraulic oil cylinder, the placing groove is formed in the testing table, a first elastic piece is arranged in the placing groove, a sewage draining opening is formed in the bottom of the placing groove, a water purifying pipe is arranged in the sewage draining opening, and a water outlet is formed in the water purifying pipe. A sealing gasket is arranged at the top of the water purification pipe, a water purification bin is connected to the bottom of the sealing gasket, a sewage bin is arranged at the bottom of the sewage outlet, and a partition plate is arranged in the sewage bin and the water purification bin. A clamping and fixing joint composed of a placing groove, an extrusion cover, a fixing table and a hydraulic oil cylinder is arranged on the test table, so that a reverse osmosis membrane placed in the placing groove can be quickly clamped and fixed through the extrusion cover by virtue of the movement of the hydraulic oil cylinder, and the extrusion cover is connected to the fixing table through a threaded rod, so that different heights at different positions are avoided; fine adjustment can be carried out through rotation of the threaded rod, and a first spring piece is arranged in the containing groove.

The present invention proposes a filter element and a water purification system including the filter element. The filter element includes a filter element body, a water circuit switching valve and an automatic flushing valve. The filter element body is provided with a water inlet, a water outlet and a sewage outlet; the water circuit switching valve is provided with a first flow channel and a second flow channel. The water circuit switching valve has a filtering position and a flushing position. When the water circuit switching valve is in the filtering position, the first flow channel connects the external water inlet and the water inlet of the filter element body, and the second flow channel connects the external water outlet and the water outlet of the filter element body; when the water circuit switching valve is in the flushing position, the first flow channel connects the external water inlet and the water inlet of the filter element body, and the second flow channel blocks the external water outlet and / or the water outlet of the filter element body; the automatic flushing valve is connected to the sewage outlet, and the automatic flushing valve is opened and closed at a fixed time. In this way, the present invention realizes the automatic flushing of the filter element to solve the problem of impurities accumulated in the filter element when in use in the prior art.

The invention discloses a sewage treatment box for sewage treatment, and particularly relates to the technical field of chemical processing, the sewage treatment box comprises a sewage filter box and a plurality of filter screens, two sides of the sewage filter box are respectively provided with a sewage inlet and a sewage outlet which are communicated with the interior of the sewage filter box, and a filter assembly is used for cleaning impurities adsorbed on the surfaces of the filter screens and is used for filtering sewage. The filter assembly is arranged in the sewage filter tank and pushes the sewage to wash away the cleaned impurities at the filter screen, and the filter assembly comprises a cleaning scraper attached to one side of the filter screen and two supporting frames symmetrically and fixedly connected in the sewage filter tank; through the arrangement of the filter assembly, the filter assembly can rotate along the surface of the filter screen and is used for rotationally cleaning the surface of the filter screen, impurities and dirt attached to the filter screen are effectively removed, the situation that the surface of the filter screen is blocked is avoided, and sewage can quickly pass through the filter screen; therefore, the multi-stage treatment effect of the sewage filter tank on the sewage inside the sewage filter tank is improved, and the sewage treatment efficiency of the device is improved.

The shell-and-tube heat exchanger comprises a shell-and-tube heat exchanger body, the shell-and-tube heat exchanger body comprises a shell, a heat transfer tube bundle, two tube plates and a plurality of baffle plates, the two ends of the heat transfer tube bundle are installed in the shell through the two tube plates, and the baffle plates are installed in the shell through the two tube plates. The baffle plates are installed between the two tube plates at intervals in the shell pass direction of the shell, the shell is provided with a shell pass fluid inlet, a shell pass fluid outlet, a tube pass fluid inlet and a tube pass fluid outlet, the shell-and-tube heat exchanger body is further provided with a drain outlet and a pressure pulse cleaning system, and the pressure pulse cleaning system at least comprises a pulse nozzle and a nested tube. The ultrasonic cleaning and pressure pulse cleaning method is used for conducting online cleaning and full-range cleaning on the heat exchanger tube bundle space, cleaning dead angles do not exist, the cleaning efficiency is greatly improved, meanwhile, the service life of the shell-and-tube heat exchanger is effectively prolonged, the heat exchange efficiency is improved, and the labor cost is reduced.

The invention discloses heavy metal mine acid wastewater treatment equipment and method, and belongs to the technical field of wastewater treatment. The heavy metal mine acid wastewater treatment equipment comprises a slag screening barrel, a first treatment box is arranged outside one side of the slag screening barrel, a second treatment box is arranged outside one side of the first treatment box, a water collecting pipe is arranged at the top of the inner side of the slag screening barrel, and one end of the top of the water collecting pipe is in threaded connection with a guide table; the outer wall of the guide table is fixedly welded to the inner wall of the slag screening barrel, a screen is in threaded connection with one end of the bottom of the water collecting pipe, a first motor is in threaded connection with the center of the bottom of the screen, a scraper is fixed to the output end of the first motor, the outer wall of the scraper is attached to the inner wall of the screen, and a drain outlet is formed in one side of the screen. And a blow-off pipe is welded outside the blow-off port. The problems that in the prior art, slag cannot be filtered when acidic wastewater is treated, so that a filtering device is blocked by the slag, and meanwhile, the treatment effect of the acidic wastewater is affected are effectively solved.

The invention discloses an integrated chemical laboratory wastewater treatment device, belongs to the technical field of wastewater treatment, and provides a scheme as follows: a sewage inlet position can be adjusted through a steerable sewage inlet assembly, so that the integrated chemical laboratory wastewater treatment device can correspond to treatment tanks at different positions according to requirements, and the sewage inlet requirement of automatically switching different positions is met; after the steerable sewage inlet assembly corresponds to the treatment tank, a tooth valve and a tooth section are in transmission, a sewage outlet of a sewage inlet pipe can be automatically opened, direct sewage inlet operation is facilitated, meanwhile, transmission with a corresponding first gear can be achieved through a linkage assembly, and therefore the corresponding treatment tank can be automatically opened to be communicated with a three-way valve; meanwhile, the sewage inlet pipe can rotate to drive the first motor to automatically switch positions, so that the driving requirements of different positions are met, the use cost is reduced, the convection assembly can rotate in the treatment tank through transmission of the stirring assembly and the transmission assembly, and the purpose of up-and-down convection of the wastewater can be achieved; the mixing effect is improved.

The present invention relates to the technical field of environment monitoring, and specifically to an automatic inspection and identification system and method for sewage outfalls along a shoreline. The system comprises a carrier, a four-view camera, a side-scan sonar and an intelligent inspection integrated machine. An on-bridge water drain opening identification model, an overwater sewage outfall detection model, an underwater sewage outfall detection model, and a personal posture detection model are carried in the intelligent inspection integrated machine. The on-bridge water drain opening identification model analyzes a riverway environment collected by a front camera to identify an on-bridge water drain opening; the overwater sewage outfall detection mode identifies an overwater sewage outfall according to image information collected by two side cameras, i.e. a left side camera and a right side camera; the underwater sewage outfall detection model identifies an underwater sewage outfall according to underwater scene information collected by the side-scan sonar; the personal posture detection model determines whether an operator is in a safe operation state according to image information collected by a rear camera. The present invention can improve accuracy and efficiency in sewage outfall inspection processes.

The utility model discloses an integrated skid-mounted device of double vertical sand removers, which relates to the technical field of shale gas sand removal and comprises a skid-mounted base, a sand remover body and a process pipeline connected with the sand remover body, a gas inlet is arranged at the upper end of the sand remover, a gas outlet is arranged at the lower end of the sand remover, and a drain outlet is arranged at the bottom of the sand remover. The two vertical sand removers are parallelly suspended on the prying base, the sand removers are provided with maintenance platforms, and the maintenance platforms are provided with ladders and guardrails; the process pipeline comprises a gas inlet pipeline and a gas outlet pipeline; one end of the gas inlet pipeline is connected with a gas inlet of a high-layer desander; the other end of the gas inlet pipeline is connected with a low prying base in parallel; one end of the gas outlet pipeline is connected with a gas outlet of the high-layer desander and the other end of the gas outlet pipeline is connected with the low prying base in parallel; one end of the blow-off pipeline is connected with a blow-off port of the high-layer desander, and the other end of the blow-off pipeline is connected with the low prying base in parallel. The desander can be used for desanding efficiently, and is high in integration level, simple to mount and easy to carry.

The utility model discloses an electronic information board supporting assembly, which relates to the technical field of advertising and comprises a shell, a roller and a clamping roller are connected to two sides inside the shell, a protective film is arranged between the roller and the clamping roller, upright posts are fixed above and below the inside of the shell, one side of each upright post is connected with a scraping plate through a bracket, and the scraping plate is connected with the bracket. A drain outlet is formed in the bottom of the shell. Through the arrangement of the protective film, the roller, the clamping roller, the support, the scraping plate and the sewage draining exit, the transparent protective film shields a screen, rainwater is prevented from permeating into the information display panel, when it rains, the roller is driven by the motor to rotate, the contact face between the protective film and the roller is increased through the clamping roller, and therefore friction force is increased; the rotary drum drives the protective film to rotate, and the protective film collides with the fixed scraper after rotating, so that the scraper is used for scraping off a dust-water mixture on the surface of the protective film to achieve a cleaning effect, and then sewage and dust are discharged through the sewage outlet; the cleaning effect is good, and watching is not affected.

The utility model discloses a sewage treatment sludge discharge device with a stirring mechanism, which comprises a top platform, a stirring adjusting component and a self-cleaning component, a support frame is arranged at the top of the top platform, and adjusting motors in the stirring adjusting component are symmetrically arranged at the top of the support frame. A stirring mechanism of the device is composed of a stirring motor, a conveying strip and a stirring frame, the stirring frame is driven by the stirring motor to rotate, a flocculation agent added by a feeding pump is more rapidly mixed in a water body, meanwhile, the position of the stirring frame is adjusted in cooperation with a stirring adjusting assembly, the mixing speed of stirring is increased, the flocculation and sedimentation process is accelerated, and the flocculation and sedimentation efficiency is improved. The sewage treatment efficiency of the device is improved; colloidal particles are condensed into large particles, the large particles settle to the bottom of the water body and become sludge which can be accumulated at the bottom end of the interior of the treatment shell, the deposited sludge is scraped into the sewage draining exit through the self-cleaning assembly to be discharged, the automatic sludge discharging effect is achieved, manual participation in the sludge discharging process is not needed, and the practicability of the device is improved.

The invention provides a self-cleaning method of a sewage tank, the sewage tank, cleaning equipment and a cleaning base station, and the self-cleaning method comprises the following self-cleaning processes: controlling a sewage outlet to be opened so as to drain sewage in a sewage cavity, and controlling the sewage outlet to be closed; the self-cleaning mechanism is controlled to be started, and first spraying is conducted on the cavity wall of the sewage cavity; when a first specified condition is met, the self-cleaning mechanism is controlled to stop first spraying, and the drain outlet is controlled to be opened; wherein the first specified condition indicates at least one of the sewage cavity capacity or the clear water spraying amount; in response to emptying of the sewage cavity, the self-cleaning mechanism is controlled to start to conduct second spraying on the cavity wall of the sewage cavity until a second specified condition is met, and the self-cleaning mechanism is controlled to stop second spraying; wherein the second specified condition indicates the clear water spraying amount, and in the second spraying process, the drain outlet is kept open. The technical problem that an existing sewage tank is poor in self-cleaning effect can be solved.

The utility model relates to the technical field of household appliances, and provides a water heater which comprises a machine body, a water inlet pipe assembly, a water outlet pipe assembly and a filtering assembly, the machine body is provided with an inner container assembly, the inner container assembly is provided with a water storage cavity, and the inner container assembly is further provided with a water inlet, a water outlet and a sewage outlet which are communicated with the water storage cavity; the water inlet pipe assembly penetrates through the water inlet; the water outlet pipe assembly penetrates through the water outlet; the filtering assembly penetrates through the sewage draining exit, and a water outlet of the filtering assembly and a water outlet of the water outlet pipe assembly are connected to the same water outlet. Hot water in the water heater can be discharged through the water outlet pipe assembly and can also be discharged through the filtering assembly, the water outlet pipe assembly and the filtering assembly are both connected with the same water outlet, when the water heater discharges sewage, it is not needed to wait for the temperature of the hot water to be reduced, filtered water can be reused, and the utilization rate of the hot water is effectively increased.

The invention belongs to the technical field of sewage treatment, and particularly relates to sewage treatment equipment for indigo blue production and a treatment method.The sewage treatment equipment comprises a sewage treatment box, a sewage outlet is formed in the bottom in the sewage treatment box, a rotating shaft is rotationally connected to the middle of the bottom in the sewage treatment box, and a driving motor is fixedly arranged at the top of the rotating shaft; a rotating rod is fixedly connected to the surface of the rotating shaft, a first cleaning plate is fixedly connected to the bottom of the rotating rod, and a cleaning assembly is arranged in the sewage treatment box and comprises a guide block; through rotation of a rotating shaft, a sliding block is driven to move up and down under the action of a guide groove and a guide column, when the sliding block is reset, a first guide rod abuts against a U-shaped block, two second cleaning plates are driven to clean all the first cleaning plates under the action of a U-shaped connecting block, and then flocculates hung on the surfaces of the first cleaning plates are scraped off; and the problem that the rotating speed of the first cleaning plate is reduced during working is solved, and the cleaning efficiency and the precipitation effect are improved.

The invention discloses an intelligent diversion treatment device for a discharge port, and relates to the technical field of rainwater and sewage diversion. The intelligent diversion treatment device comprises a diversion barrel, the interior of the diversion barrel is divided into a fan-shaped isolation area through two baffles, a water inlet of the diversion barrel is located in the fan-shaped isolation area, water falling ports are formed in the two baffles, and rotating plates are connected to the portions, on the outer side of the fan-shaped isolation area, of the diversion barrel. Cleaning grooves are formed in the bottoms, close to the positions of the two baffles, in the fan-shaped isolation area, sewage draining outlets are formed in the bottoms of the cleaning grooves, rotating drums are rotationally connected into the cleaning grooves, and first packing augers driven by second motors are rotationally arranged in the rotating drums; the rotating shaft drives the rotating plate to rotate and simultaneously drives the rotating drum to rotate, so that the fan-shaped isolation area and the drain outlet are communicated or staggered by the drain channel. Rainwater and sewage can be distributed, and sludge and solid garbage can be automatically removed.

The desulfurization tower comprises a tower body, a smoke inlet and a drain outlet are formed in the side portion of the tower body, a smoke outlet is formed in the top of the tower body, and a liquid storage tank, at least one heat exchange layer and at least one absorption layer are sequentially arranged in the tower body from bottom to top at intervals; the cooling supply unit is arranged outside the tower body, is communicated with the liquid storage tank and is used for controlling the temperature of the desulfurization liquid in the liquid storage tank; the heat exchange layer is positioned above the smoke inlet and is used for absorbing heat in the waste gas and cooling the waste gas; the cooling supply unit is used for cooling the desulfurization liquid and then supplying the desulfurization liquid into the tower body for cooling and reacting the waste gas, so that the cooling effect on the tower body is prevented from being influenced by over-high temperature of the desulfurization liquid; waste gas entering the tower body exchanges heat with the desulfurization liquid through the heat exchange layer and can react with the desulfurization liquid preliminarily, the temperature of the waste gas is controlled so that the waste gas can react with the desulfurization liquid fully again in the absorption layer, the desulfurization efficiency is improved, the temperature of the tower body and the temperature during discharging are reduced, and the phenomenon of white smoke caused by too large temperature difference at the smoke outlet is avoided.

The invention discloses a sewage draining exit off-site law enforcement method and system based on a digital twin technology, and relates to the technical field of sewage draining exit off-site law enforcement. According to the sewage draining exit off-site law enforcement method based on the digital twinborn technology, three-dimensional point cloud data of a set sewage draining exit are obtained and input into a pre-trained structure identification model for comprehensive analysis, an attribute set of each component is obtained, a digital twinborn model is constructed, sewage draining monitoring time sequence data are continuously obtained, and the sewage draining exit off-site law enforcement method based on the digital twinborn technology is obtained. Inputting the data into a digital twin model for feature analysis to obtain a discharge behavior risk index and a discharge visual risk index of each time period, and performing comprehensive analysis to obtain a discharge abnormality evaluation index of each time period of a set drain outlet; according to the method, the preset off-site law enforcement measures are taken for the set sewage draining exit according to the discharge abnormity evaluation index of each time period, so that pre-recognition, automatic reaction and accurate response of sudden sewage draining are realized, and the instantaneity and the intelligent level of off-site supervision are improved.

The utility model discloses a prefilter which comprises a shell part and a filter element, the shell part is provided with a water inlet, a water outlet and a drain outlet, the filter element is arranged in the shell part and is matched with the shell part to form a raw water cavity communicated with the drain outlet and a purified water cavity communicated with the water outlet, a water inlet channel is arranged between the water inlet and the raw water cavity, and a water outlet channel is arranged between the water inlet and the purified water cavity. A backwashing channel is arranged between the water inlet and the water purification cavity, and a plugging piece for opening and closing the sewage draining exit is arranged at the sewage draining exit; and the water path switching mechanism is arranged on the shell part and is used for controlling the switching opening of the water inlet channel and the backwashing channel. When the pre-filter disclosed by the utility model is in a filtering state, the backwashing channel is in a closed state, so that if a backwashing filter screen is arranged on the backwashing channel, the backwashing filter screen cannot filter water flow in the filtering state, so that dirt on the backwashing filter screen can be reduced, and normal filtering of the backwashing filter screen in the backwashing state is ensured.

The invention relates to the technical field of sewage treatment, in particular to a CCRO high-efficiency water treatment system and a working method thereof. Comprising a sewage tank, a water supply pump, a scale inhibitor injection module, a sodium hydrogen sulfite injection module, a bactericide injection module, a security filter, a static mixer, a high-pressure pump, a reverse osmosis membrane assembly, a reaction tank, a circulating pump, a cleaning pump, a water production tank and a concentration device which are connected through pipelines, the sewage tank, the water supply pump, the security filter, the static mixer, the high-pressure pump, the reverse osmosis membrane assembly, the reaction tank, the circulating pump, the cleaning pump and the water production tank are all provided with an outlet and an inlet, and the reverse osmosis membrane assembly is also provided with a drain outlet; the sewage pool, the water supply pump, the static mixer, the security filter, the high-pressure pump, the reverse osmosis membrane assembly and the water producing pool are sequentially connected through the outlet and the inlet through pipelines; the problem that an existing CCRO water treatment system is insufficient in automation degree can be effectively solved, the sewage treatment efficiency and quality are improved, the operation and maintenance cost is reduced, and wide application prospects are achieved.

The utility model discloses a multi-cone separation pre-filter which comprises a filter bottle, the upper end of the filter bottle is connected with a valve head, one side of the valve head is provided with a water inlet, the other side of the valve head is provided with a water outlet, the lower end of the filter bottle is provided with a drain outlet, a ball valve is installed in the drain outlet, and a water segregator, a framework, a filter screen and a separation mechanism are installed in the filter bottle. The separation mechanism comprises an inner pipe part and an outer pipe part, an inner water cavity is formed between the inner pipe part and the outer pipe part, a plurality of conical funnels are arranged between the inner pipe part and the outer pipe part, and conical separation cavities are formed in the conical funnels. According to the multi-cone separation pre-filter disclosed by the utility model, the filter screen is combined with the multi-cone separator, double filter systems are perfectly fused, the filter effect is good, the flux is increased, the pollution discharge is clean and thorough, and the multi-cone separation pre-filter can adapt to different environmental water qualities.

The invention discloses an intelligent pet toilet in the technical field of pet supplies, and the intelligent pet toilet comprises a support which is provided with a bin body and a driving assembly used for driving the bin body to rotate on the support; a drain outlet is formed in the side wall of the bin body, and a discharge outlet is formed in the bottom of the support; a photoelectric sensor and a controller are arranged on the support, the photoelectric sensor comprises a transmitting end and a detecting end which are located on the two sides of the bin body respectively, and a plurality of open holes are formed in the side wall of the bin body; light beams emitted by the emitting end of the photoelectric sensor can irradiate the detection end through the multiple open holes formed in the upper portion of the side wall of the bin body, the controller can accurately judge the movement position of the bin body through the open holes formed in different positions, the control accuracy of the bin body is improved, the situation that the bin body offside or is not in place is avoided, and the working efficiency is improved. Normal discharge of excrement is ensured, and normal operation of the pet toilet is ensured.

The utility model provides a surface cleaning device for recycling steel pipes, which belongs to the technical field of steel pipe cleaning and comprises a shell, a support is arranged at the bottom of the shell, an inlet and an outlet are respectively arranged on the front side and the rear side of the shell, and a drain outlet is arranged at the bottom of the shell. The two sets of steel pipe leading-in assemblies are arranged at the positions, close to the front outlet and the rear outlet, of the bottom wall of the shell correspondingly; the steel pipe cleaning assembly comprises a mounting seat and a roller brush, the mounting seat is arranged at the top of the sewage draining exit, a dust removal opening is formed in the bottom of the mounting seat, the dust removal opening penetrates through the sewage draining exit and extends to the outer side of the dust removal opening, the roller brush is rotationally arranged at the top of the mounting seat, and a through hole is formed in the roller brush. The problems that in the prior art, when steel pipes are recycled, impurities such as rust, soil and cement on the steel pipes are not effectively removed, the strength and stability are poor, the weight is increased, and then reutilization of the steel pipes is affected are solved.

The utility model relates to the technical field of laser cutting, and discloses a laser cutting device capable of collecting sweeps, which comprises a top plate, two sides of the bottom of the top plate are fixedly connected with support plates, the two support plates are fixedly connected with the same material collecting frame close to the top, one side of the top of the material collecting frame is provided with a drain outlet, and the top of the material collecting frame is fixedly connected with a scraping plate. A rectangular hole is formed in the middle of the scraping plate, a threaded connection plate is slidably connected into the rectangular hole, sliding rods are slidably arranged at the two ends of the threaded connection plate in a sleeved mode, round holes matched with the sliding rods are formed in the two ends of the threaded connection plate, the tops and the bottoms of the two sliding rods are fixedly connected to the top and the bottom of the rectangular hole, and a T-shaped groove is formed in the middle of the top of the threaded connection plate. The cutting device has the technical effects that sweeps and dust generated by cutting can be cleaned in time, so that the cutting process is smoother, the working efficiency is improved, the influence of the sweeps on the cutting head can be reduced, and the cutting precision and quality are improved.

The invention discloses a rainwater collection device based on a sponge city and a collection method thereof, and particularly relates to the technical field of rainwater collection, the rainwater collection device comprises a reservoir and a precipitation cylinder, the reservoir is internally provided with an inspection well and a recycling well, the bottom of the precipitation cylinder is provided with a first pollution discharge hole, and the first pollution discharge hole is internally provided with a first sealing element; the first sealing piece can change the sealing state according to the amount of accumulated water in the precipitation barrel, a stirring piece is arranged at the inner bottom of the precipitation barrel, and the stirring piece can stir sediment at the first pollution discharge hole when the first pollution discharge hole is opened; the sewage draining exit is opened in advance according to the precipitation amount and the water storage amount in the water storage pool, meanwhile, accumulated water in the water storage pool is kept at a certain water level, the water storage pool has a certain buffer space, and therefore it is guaranteed that when the precipitation amount is large due to rainstorm or long-time raining, the water storage pool can not be blocked; the rainwater collecting device can quickly discharge flood to prevent urban waterlogging.

The invention relates to the technical field of wastewater treatment, in particular to water treatment plant reverse osmosis wastewater treatment equipment and method.The water treatment plant reverse osmosis wastewater treatment equipment comprises a precipitation barrel used for wastewater precipitation, a drainage opening is formed in the annular barrel wall of the precipitation barrel, and a sewage outlet used for discharging precipitates is formed in the bottom wall of the precipitation barrel; the filter pressing unit is arranged in the precipitation barrel, is used for separating the wastewater from the precipitation, and comprises a filter pressing part which can move up and down and is arranged in the precipitation barrel. The filter pressing unit adopted by the invention can filter precipitates generated after wastewater treatment, the precipitates do not need to stand, the wastewater treatment efficiency is effectively improved, the treated wastewater can be discharged in real time in the filtering process, and the step of discharging the wastewater through a water pump is reduced.