1861 results about "Sewage outfall" patented technology

The invention discloses an intelligent water resource control platform based on cloud computing and an expert system. The platform comprises a site measurement and control station, an internet of things data transmission system and a cloud computing service platform, and is characterized in that the control platform carries out automatic real-time collection on water resource information of a water supply water source, underground water, a water intake, a boundary control fracture surface and a sewage draining exit and site equipment operating condition information through the site measurement and control station, and real-time data preprocessing is achieved by means of an additionally installed site intelligent controller; internet of things data transmission equipment is adopted in the internet of things data transmission system to sent data of the measurement and control station to the cloud computing platform, and data support is provided for water resource management and advanced applications; the cloud computing service platform achieves real-time monitoring on water resources, monitoring on operating condition and remote on-line maintenance on site monitoring equipment and applications on water resource service, and a water resource decision is utilized to support the expert system to achieve assessment, early warning and emergency commanding of the water resources. The cloud computing and the Internet of things technology are applied to the platform, so measurement and control data are timely and efficiently processed, the intelligent computing technology is applied so that intelligent assessment and early warning of the water resources can be achieved, and safety of the water resources is guaranteed to a great extent.

The invention relates to the technical field of road cleaning and particularly relates to a scrubber and a non-motor vehicle road surface cleaning system using the scrubber. The scrubber comprises brushes formed by a plurality of circular brush discs. The brushes are connected with gears through springs, and heights can be adjusted automatically on uneven road surfaces, so that the circular brush discs are prevented from being abraded and bumped, and the brush service life is greatly prolonged; the brushes can rise and descend vertically by the controlling of a lifting motor to meet cleaning requirements of grounds of different heights. The invention further discloses the non-motor vehicle road surface cleaning system using the scrubber. The system comprises the scrubber and a water suction machine matched with the scrubber. The water suction machine follows traveling trajectories of the scrubber tightly, so that sewage and mud left by the scrubber is suctioned during cleaning constantly and drain the sewage and mud to roadside drainage ports timely to clean and dry the ground thoroughly. Accordingly, the cleaning cost is saved to the largest extent while the cleaning efficiency is guaranteed.

The invention provides an efficient photocatalysis water treatment device. The efficient photocatalysis water treatment device comprises a tank body, a quartz tube, a backflow port, an extra-ultraviolet tube, a three-dimensional ceramic honeycomb net photochemical reaction chamber, a sewage distributor, a sewage port, an aeration port, an aeration assembly, a sewage draining port, a medicine distributing assembly, a medicine port, a coarse filtering net, a high-pressure backwashing device, a high-pressure water port, a tail gas recovering port and a reciprocating motion device; three ports are formed at the lower part of the tank body, namely, an organic sewage port, the aeration port and the medicine port; the three-dimensional ceramic honeycomb net photochemical reaction chamber for loading the extra-ultraviolet lamp and a nanometer TiO2 photocatalyst are formed at the upper part of the tank body; and the tail gas recovery port is formed at the upper part of the tank body.

The invention relates to the technical field of big data, and discloses a pollution source positioning method and device based on big data, equipment and a storage medium. The pollution source positioning method based on big data comprises the following steps: monitoring a target river reach area within a preset time length range and acquiring data to obtain monitoring data corresponding to a plurality of sewage draining exits; classifying the pollutants based on a preset classification model to obtain a pollution source; calculating the pollutant discharge amount corresponding to the pollution source according to the pollutant concentration; calculating the correlation between the pollutant discharge amount and the monitoring data through a preset algorithm to obtain a pollution dischargerule portrait; when it is detected that the pollutant concentration exceeds the standard, conducting matching analysis on pollutants exceeding the standard according to the pollution discharge rule portrait, and obtaining a target pollution source; and when the target pollution source is an industrial source, determining a target enterprise from the pollution discharge rule portrait, and sendingpreset early warning information. According to the invention, by excavating the emission rules of different types of pollution sources, the accuracy of pollution source positioning is improved, and early warning is carried out in time.

The invention discloses a quick measuring method of BOD in hyperhaline industrial waste water. The method comprises the following steps: taking 10g sludge from a hyperhaline waste water sewage outfall; adding 90mL sterilized normal saline into the sludge; carrying out streaking on a beef extract peptone culture medium plate for 2d at a temperature of 37 DEG C till obtaining pure salt-tolerant bacterial strain; inoculating the bacterial strain in beef extract peptone culture medium to carry out shaking culture inside a constant temperature shaking box for 24h, centrifugation for 5min at a rotating speed of 4,500r / min and washing by means of 0.9 percent NaCl solution, thereby obtaining salt-tolerant bacteria; dispersing 5mg carbon nano tube in water to form 5mg.mL carbon nano tube suspension; preparing the salt-tolerant bacteria into 0.2 g.mL bacterial suspension by phosphate buffer solution; mixing the bacterial suspension with the carbon nano tube suspension according to the volume ratio of 1:2, and evenly coating 30 mu L mixed suspension on cellulose film with the aperture equal to 0.2 mu; cooling the cellulose film semidry and fixing the film on a dissolved oxygen electrode to form a BOD electrode; and setting a dissolved oxygen analyzer as automatic measuring and recording output current in time by magnetic data acquisition software. The quick measuring method has the advantages of simplicity and quickness, high accuracy and ideal stability.

The invention discloses a supercritical-water-oxidation energy recovery system. The supercritical-water-oxidation energy recovery system disclosed by the invention has the beneficial effects that theoutlet end of a supercritical water oxidation reactor is connected with a high-pressure hydrocyclone, inorganic salts in reaction products in the supercritical water oxidation reactor are discharged from a sewage discharging port, high-pressure and high-pressure gas generated is exhausted into a buffering tank to carry out flat-pressing treatment, then the flatly-pressed gas passes through a high-pressure turboexpander and a low-pressure turboexpander in sequence to carry out residual-heat utilization for generating power, an outlet of the low-pressure turboexpander is connected with an evaporator, a Rankine circulation system is connected on the evaporator and is utilized for further utilizing residual heat of fluid passing through the evaporator, so that the energy input of the Rankine circulation system is reduced; the supercritical water oxidation system and a residual-heat and residual-pressure recovery system are fully combined, and heat energy and pressure energy of supercritical water oxidation products are fully utilized, so that the energy recovery and utilization rate of the supercritical water oxidation system is increased; carbon dioxide in the products is separated and recovered by utilizing a gas-liquid separator and a rectifying tower, so that the emission of greenhouse gas is reduced.

The invention relates to a spray tower with the function of cleaning the packing layer, which includes a body, a water pipe, a packing layer and a water pump, and also includes a spraying mechanism, a cleaning mechanism and a sewage discharge mechanism. The cleaning mechanism includes a first support rod and a knocking block , a first transmission rod, a second transmission rod, a first drive assembly and two springs, the blowdown mechanism includes a second drive assembly, a second support rod, a moving block, a connecting rod, a scraper and a blowdown assembly, which has In the spray tower with packing layer cleaning function, the packing layer is beaten by the cleaning mechanism, and the dirt in the packing layer is cleaned out under the action of inertia, and the packing layer is sprayed by the spraying mechanism, thus realizing the cleaning of the packing layer. The cleaning of the packing layer can be kept clean, thereby improving the purification effect of the spray tower. Not only that, the sludge deposited in the spray tower is cleaned through the sewage discharge mechanism, which not only improves the efficiency of cleaning sludge in the spray tower, It also prevents sludge from clogging the sewage outlet.

The invention discloses a kitchen waste and waste water treatment integrated device and a method. The kitchen waste and waste water treatment integrated device comprises casing body which contains a water inlet and a sewage draining port, a classification system arranged at the position of the water inlet, a crushing system connected to the classification system, a dehydration system connected to the crushing system, a deodorizing and sterilization system connected to the dehydration system, an oil-water separating system connected to the deodorizing and sterilization system, an oil scraping system connected to the oil-water separating system, a filtration system connected to the oil-water separating system and a collection system; and the classification system, the crushing system and the oil scraping system are respectively connected to the collection system. The kitchen waste and waste water treatment integrated device employs the above structure, and can effectively classify and treat the metal waste, organic garbage, oil and waste water in kitchen waste water.

A method for positioning an illegal sewage outfall. A mobile monitoring component with a water quality sensor is placed in a riverway for cruise; and during the cruise, if the water quality sensor detects pollution of the river water quality, a detection on any cross section of the riverway is carried out. If concentration of pollutants detected in the same cross section maintains the same, it shows that the mobile monitoring component is far from an illegal sewage outfall; then a one-dimensional water quality model is utilized to estimate a distance between the mobile monitoring component and the illegal sewage outfall; and the mobile monitoring component is sent to the estimated position in the riverway. If concentration pollutants detected in the same cross section changes, it shows that the mobile monitoring component is near to the illegal sewage outfall; then a Z-shaped search path method based on changes of pollutant concentration values is utilized for accurate positioning of an illegal sewage outfall. The invention has the advantages of simple principle, high degree of intelligence, stability, reliability and accurate positioning.

The invention relates to the technical field of water purification equipment, and particularly relates to a multifunctional water purifier with the functions of sterilization, disinfection, preservation, energy conservation, environment protection and the like. The water purifier adopts a dual-membrane, dual-water and dual-drainage design of an ultrafiltration membrane and a reverse osmosis membrane, an ozone and ultraviolet sterilization, disinfection and preservation design, a filter element exchange reminding function design, a water-saving design, a multifunctional filter element design, an ultrafiltration water, purified water, ozone water, clear water and functional water drainage design, a transparent housing design, and a leakage protection design. The multifunctional water purifier is designed into dual-membrane and dual-row drainage by adopting the dual-membrane, dual-water and dual-drainage design of the ultrafiltration membrane and the reverse osmosis membrane; the drainage capacity can be up to 100%; a plurality of one-way valves are designed in the device; the valves play a plurality of water control requirements; each control switch is properly turned on and off, so as to achieve purified water outlet drainage or ozone water outlet drainage or clear water outlet drainage or functional water outlet drainage or reverse osmosis membrane drain outlet drainage or ultrafiltration membrane drain outlet drainage or leakage protection start.

The invention discloses an automatic backwashing filter and a working method, which are suitable for filtering impurities in sewage. The filter comprises a runner switching main valve, a valve plate and a barrel, the valve plate is arranged on an upper opening of the barrel, and the main valve is arranged on the valve plate and communicated with the interior of the barrel through a runner; two flow channels are arranged on the valve plate, one flow channel is a filtering flow channel communicated with the inner space of the filter screen, and the other flow channel is a backwashing flow channel communicated with the space between the filter screen and the cylinder body; the flow channel switching main valve comprises a valve body, a sewage draining exit, a water inlet and a water outlet are sequentially formed in the valve body from left to right, and a filtering outlet connected with the filtering flow channel and a backwashing outlet connected with the backwashing flow channel are sequentially formed in the lower portion of the valve body from left to right; wherein a two-position five-way reversing valve group capable of automatically switching a normal working mode or a backwashing mode according to the blockage condition of the filter screen is arranged among the drain outlet, the water inlet, the water outlet, the filter outlet and the backwashing outlet. The filter is simple in structure, does not consume energy, and automatically switches backwashing.

The invention discloses a filter and a washing machine. The filter and the washing machine are designed for solving the problems that the existing filters are not even in filtration and cannot be cleaned automatically, and the like. The filter comprises a filter cylinder body and a filter screen. The cylinder body is provided with a water inlet, a water outlet, and a sewage discharge port. The filter screen is installed inside the cylinder body and the filter screen separates the inner cavity of the filter cylinder body into two portions including an internal containing cavity and an external containing cavity. The upper end of the internal containing cavity is connected with the water inlet; the lower end is connected with the sewage discharge port. The external containing cavity is connected with the water outlet. Sewage flows into the internal containing cavity from the water inlet, and then enters the external containing cavity after being filtered by the filter screen; and then the sewage is discharged through the water outlet. The filtered impurities are discharged through the sewage discharge port. The filter is even in filtration, and easy to deposit the impurities. The washing machine having the filter is able to filter the water for washing clothes in circulation, and is able to discharge the filtered impurities automatically, thus saving plenty of water resources.

The invention relates to a vacuum system which comprises a plurality of drainage sources, a plurality of vacuum conveying pumps, a sewage collecting part and a control center. Each sewage source comprises a drainage pool with a sewage outfall, a vacuum release valve, a vapor integrated double electromagnetic valve and a control device; and the sewage outfall of the drainage pool is connected with a discharge pipe of the sewage source by the vacuum release valve. The discharge pipe of the sewage source is connected with a sewage suction pipe by an isolation ball valve; the sewage suction pipe is connected with an inlet pipe of each vacuum conveying pump; and an outlet pipe of each vacuum conveying pump is connected with a sewage discharge pipe which is connected to the sewage collecting part. A pressure detection device in electric connection with the control center is arranged on the sewage suction pipe; and the vacuum conveying pump and the control center are in electric connection. In the vacuum system, the control center carries out intelligent control that one or a plurality of the vacuum conveying pumps are opened according to the detected vacuum degree of the sewage suction pipe; the vacuum system can ensure the vacuum degree of the sewage suction pipe to make sewage discharging smooth, effectively saves energy, has simple control, reduces cost, improves the reliability of the system and is convenient to maintain.

The invention relates to a culture method of penaeid shrimps in an over-winter shed, which comprises the following steps: building up a culture pond of the over-winter shed; discharging sea water into the culture pond after treatment, culturing water color of culture water, and then pouring shrimp fries into the culture water for culture; applying a beneficial microorganism preparation during the culture period for degrading pollutants produced during the culture process and conditioning water quality; regulating water temperature of the culture pond by opening small doors at two sides of the shed and opening a plastic thin film; and discharging sewage at the bottom of the culture pond through a central sewage discharge outlet daily and simultaneously supplementing fresh water in the late stage of culture. The culture method of the penaeid shrimps in the over-winter shed can effectively utilize the idle period of the culture pond of the penaeid shrimps in winter, realize the outdoor culture of the penaeid shrimps in winter in the South, ensure the supply of fresh and live penaeid shrimps to the market in low season of the culture and improve the production benefits and the market benefits of the culture; and the culture pond of the over-winter shed for the penaeid shrimps is simple to build up, building materials can be selected according to local material sources, and the plastic thin film and a large-mesh net coat covered on the over-winter shed can ensure that the over-winter shed can realize wind resistance and no leakage of rain.

The invention discloses a ceramic pedestal pan with a rearmounted flushing pipeline and a manufacturing process thereof. The ceramic pedestal pan comprises a seat body, a bed pan, a draining curve and a flushing pipeline, and is characterized in that: the outlet of the draining curve and a draining opening of the bed pan are connected in the front, the flushing pipeline is arranged at the back of the bed pan, and a flushing protecting hole of the flushing pipeline and the draining opening of the bed pan are connected at the back, wherein the cross section area of the opening of the flushing pipeline is 16-24cm<2>, and the cross section area of the flushing protecting hole is 2-5cm<2>. The product only needs 3-4L of water for flushing and draining at every time, keeps excellent drainage performance and also realizes the water saving effect; in addition, the product has reasonable structure and does not generate rearmounted center of gravity; and the production process of the product has simple operation, and the yield of the product is high.

The invention relates to a city watercourse drain outlet sewage treatment method. The method mainly comprise the steps of regulation, wherein sewage is introduced into a regulating reservoir for regulation; mixing with flocculant, wherein sewage in the regulating reservoir is led out to be mixed with flocculant; flocculent settling, wherein sewage mixed with flocculant is sequentially introduced into a baffle flocculation reaction tank and a settling tank for sewage flocculation and sludge precipitation separation; denitrification, wherein water discharged from the settling tank and part of water discharged from a nitration aerating filter are introduced into a denitrification filter for denitrification; aerobiotic nitration, wherein water discharged from the denitrification filter is introduced into a nitration aerating filter for nitration; filtration, wherein part of water discharged from the nitration aerating filter is introduced into a filtering device for filtration. The invention further provides a sewage treatment device adopting the method. The sewage treatment device comprises a regulating reservoir, a pipeline mixer, a baffle flocculation reaction tank, an oblique plate settling tank, a denitrification filter, a nitration aerating filter and a clear water pond which are connected in series, wherein a water outlet pipeline of the clear water pond is connected to a filter device.

The invention discloses an anti-blocking sewage treatment device, which comprises a tank body, wherein the middle upper part in the tank body is provided with a screen bucket; the upper part of the screen bucket is connected with a rotation device capable of driving the screen bucket to rotate; the bottom center position of the screen bucket is provided with a blow-off pipe; a first filter screenand a second filter screen are arranged below the screen bucket in sequence; two sides of the first filter screen and the second filter screen are respectively provided with a first drain outlet and asecond drain outlet; the blow-off pipe penetrates through the first filter screen and the second filter screen; one side of the screen bucket in the tank body is provided with a water injection mechanism; the water injection mechanism is connected with a water tank through a water conveying main pipe out of the tank body; the water conveying main pipe is provided with a water pump; the top of thescreen bucket is opened; the top of the screen bucket is provided with a water feeing pipe; one side of the bottom of the tank body is provided with a water discharging pipe. According to the anti-blocking sewage treatment device, sludge and impurities can be successfully discharged so as to avoid from blocking the screen bucket, the first filter layer and the second filter layer.

The invention relates to a squatting pan with excrement residue sensing cleaning apparatus. The squatting pan comprises a squatting pan body, a water supply pipe connected with an annular flushing cavity of the squatting pan, a water route electromagnetic valve, an approaching-type infrared sensor and a control circuit, and is characterized by being additionally provided with an odor pumping mechanism and an intelligent flushing control mechanism; the odor pumping mechanism comprises a draught pipe, a fan, an air route electromagnetic valve and a control circuit, and the intelligent flushing control mechanism comprises an excrement residue sensor installed in the squatting pan, a turbidity detector installed on a water return elbow water sealing layer on the lower end of a draining openingof the squatting pan and a control circuit connected with the approaching-type infrared sensor, the water route electromagnetic valve, the excrement residue sensor and the turbidity detector. The squatting pan has the beneficial effects that a majority (more than 80 percent) of odor can be pumped from a toilet groove, and the probability of the continuous odor release of the excrement residues inthe toilet can be reduced. The water consumption of the squatting pan is reduced.

The invention provides a YOLO V5-based unmanned aerial vehicle aerial image river sewage draining exit detection method and system. The method comprises the steps of establishing an unmanned aerial vehicle aerial image river sewage draining exit image data set; preprocessing the established data set, and establishing a training set and a test set; and building a YOLO V5 model, testing the performance of the trained YOLO V5 model by using the test set, and then using the model for unmanned aerial vehicle aerial sewage draining exit image identification. The problem that in a traditional targetdetection method, the detection precision of small targets such as a sewage draining exit of an aerial image of an unmanned aerial vehicle is low is solved. The invention assists in manually detectingthe river sewage draining exit of the aerial image, and improves the detection precision of the sewage draining exit.

The invention relates to a rapid tracing method for sudden water pollution of a drainage basin. The method comprises the following steps: obtaining the distribution of a potential pollution source area of a water pollution source; monitoring water quality components in the potential pollution source area; pollutants exceeding the highest allowable discharge concentration of the comprehensive sewage discharge standard or higher than three times of background values are selected as composition characteristic pollution factors; building a traceability model; calculating a risk sensitive area of the polluted water flow source probability in real time; and counting the pollutant concentration in the risk sensitive area and the contribution of each industry to the pollutant concentration in a drain outlet discharge list. According to the method, the water pollutant concentration of the drainage basin and the contribution of each pollution discharge point in the list to the pollutant concentration of the risk area of the drainage basin can be accurately simulated, the water environment quality of the drainage basin can be effectively monitored, the problem of excessive pollution dischargeof a key pollution discharge port is solved, the calculated amount is small, and a traceability result can be quickly obtained.

Provided is a suction pollution discharge method for online air draft-on-site gravity pollution discharge. The method includes the steps that a container connected with a sewage discharging opening ofa toilet stool is included, the bottom of the container is provided with a normally-closed sewage discharging opening capable of being opened through the gravity of waste water generated by one-timedefecation, the sewage discharging opening is connected with an on-site waste water storage tank, and an air draft combination is arranged at the top of the container. Therefore, negative pressure canbe formed in the container by opening the air draft combination for a short time, so that the waste water in the toilet stool can be driven to be discharged into the waste water storage tank throughthe container.

The invention discloses a novel direct-discharging type closestool blowdown system and a novel non-water-tank closestool flushing system. The novel direct-discharging type closestool blowdown system comprises a blowdown outlet connecting sealing ring, a blowdown pipe I, a cylinder cover I, a cylinder body, piston components, a spring and a spring supporting part, wherein the piston components comprise a blowdown opening piston component, a cylinder piston component and a piston connecting pipe. The novel direct-discharging type closestool blowdown system replaces a ceramic internal blowdown pipeline (a siphon pipeline) with a zigzag pipe in an existing pedestal closestool, the structure of the pedestal closestool is made to be simpler, manufacturing and sintering yield of the pedestal closestool is improved, and energy is saved and emission is reduced in the production of pedestal closestools.

The invention discloses a primary purified water treatment tank which mainly comprises a purification tank, a fixed filtering plate, a movable filtering plate, a power device and a connecting rod, wherein a water inlet is formed in one end of the upper part of the purification tank; a purified water outlet is formed in the other end of the upper part of the purification tank; a first drain outlet is formed in one end of the lower part of the purification tank; a second drain outlet is formed in the other end of the lower part of the purification tank; the fixed filtering plate and the movable filtering plate are arranged in parallel to isolate the water inlet from the water outlet; the movable filtering plate is connected with the power device through the connecting rod so as to move to approach to the upper water inlet and the lower first drain outlet, and can be automatically washed through high-level falling water at regular time. According to the primary purified water treatment tank, small holes for filtering sewage are formed when filtering holes in two filtering plates inside the tank body are overlapped and covered by each other, after the two plates are separated, large holes are easy to clean, the movable filtering plate can be moved to a space between the upper water inlet and the lower first drain outlet at regular time, and the filtering holes can be automatically washed through high-level falling water, so that the washing can be continuously performed at regular time, and the advantages of no blocking and load resistance are achieved.

A high-efficiency garbage processor comprises a working table, a garbage crusher, a solid-liquid separation device and an electric control box, wherein the surface of the working table is provided with a material collecting basin; the bottom part of the material collecting basin is provided with a discharging port; the discharging port is connected with the garbage crusher; the garbage crusher is connected with the solid-liquid separation device via a garbage pipe; the solid-liquid separation device comprises a collecting box, a motor, a speed reduction box, a heater, an auger assembly, a water pump, a water exhaust pipe and a drain outlet; the auger assembly is fixed in the collecting box in an inclined axis direction; the auger assembly comprises a spiral auger, a filter cartridge and a connection net cover; the filter cartridge is a column-shaped hollow container; the connection net cover is located right above a feeding port; and the connection net cover realizes external feeding via a pipeline. In the mode, the invention provides a high-efficiency garbage processor, and solid and liquid separation is mainly carried out on participated food garbage through the solid-liquid separation device. The working efficiency of the entire machine is high, and the garbage separation quality can be ensured.

The invention discloses an online chemical oxidation dynamic membrane system available for processing the hardly-biodegradable wastewater. The online chemical oxidation dynamic membrane system is characterized by comprising a hydrogen peroxide header tank (1), a ferrous ore powder mixing tank (2), a pH adjusting header tank (3), a circulating tank (4), a circulating pump (5), a membrane and membrane module (6), a recycling tank (7), and a detection control device (8) of flow (L) / temperature (T) / pressure (P) / pH parameter. The outlets of the hydrogen peroxide header tank, the ferrous ore powder mixing tank and the pH adjusting header tank are connected with the circulating tank; the outlet of the circulating tank is connected with the circulating pump; the outlet of the circulating pump is connected with the circulating side of the membrane and membrane module; the detection control device (8) of the flow (L) / temperature (T) / pressure (P) / pH parameter is installed on the outlet pipe of the circulating pump, the outlet of the circulating side of the membrane and membrane module is connected with the circulating tank; a drain outlet is arranged at bottom part of the circulating side of the membrane and membrane module, the drain outlet is connected with the recycling tank; and the production water on the production water side of the membrane and membrane module is sent out of the system. By adopting the system, the product water quality of the base membrane can be greatly increased, the treatment process can be simplified, the removal rate of the chroma, TSS, CODCr, BOD5 and the benzene series can be increased, the contaminant residual amount on the circulating side can be obviously reduced and the wastewater treatment cost can be reduced.

The invention provides a front water filter and belongs to the field of water treatment equipment. The front water filter comprises a shell, a filter component, a water inlet and outlet valve component and a blow-down component, wherein the shell is additionally internally provided with a cleaning component; a funnel-shaped blow-down cavity is formed in the lower part of the shell; the blow-down component comprises a blow-down hole in the bottom of the blow-down cavity; and a siphon blow-down pipe is arranged at the blow-down hole. On one hand, the front water filter is equipped with a cleaning mechanism to scrape and clean the outer surface of a filtering net, and thus impurities adhered to the filtering net can be removed; and on the other hand, a spiral runway is formed in the inner wall of the shell of the filter, and the siphon blow-down pipe is arranged at the blow-down hole, water flow vortexes are formed inside the shell, and impurities adhered to the filtering net and the inner wall of the shell can be sufficiently removed through the sucking force resulted by a siphon function. The decontamination ability of the filter can be greatly improved, and the service life of thefilter can be prolonged.

The present invention discloses a gas dust-removing device, including a shell; a gas inlet is disposed at the upper end of one side of the shell; a gas outlet is disposed at the upper end of the other side of the shell; the gas dust-removing device is characterized in that a dust-removing chamber is disposed inside the shell; the upper end of the dust-removing chamber is provided with a spraying device; the spraying device is communicated with a water pipe; the water pipe is provided with a control valve; a filtering device is disposed in the dust-removing chamber; a water collecting chamber is disposed at the lower end of the dust-removing chamber; a sewage treatment plant is disposed in the water collecting chamber; a sewage outfall is disposed at the bottom of the water collecting chamber; a water outfall is disposed at one side of the water collecting chamber; the water outfall is communicated with the water pipe through a water pump; a water level controller is arranged in the water collecting chamber; and the gas inlet is communicated with the dust-removing chamber. The invention has the advantages that the combination of the spraying device and the filtering device can effectively remove impurities in gas; the impurities in gas are filtered into the water collecting chamber through the filtering device, and then the impurities in sewage are treated by the sewage treatment plant in the water collecting chamber.

The invention discloses a sewage pretreatment method and device. A settling assembly is arranged in a support frame; a water inlet pipe penetrates through the side top end of a settling tank; the bottom end of a dirt discharge port is connected with a dirt discharge pipe; a supporting column is slidably mounted in a rubber pipe; support springs are uniformly distributed on the bottom surface of the settling tank; a dosing assembly is mounted at the top of the settling tank; a water inlet assembly is connected to the top of the water inlet pipe; one side of the dirt discharge pipe is connectedwith a slag removal assembly; an arc-shaped filter screen is mounted in a semi-cylindrical barrel; and one end of a porous rotating pipe is connected with a return pipe. Ferromagnetic substances are removed through the water inlet assembly, so obstruction is avoided; and sewage settles after entering the settling tank, the settling assembly is matched with the dosing assembly to remove sediments,the settling assembly is extremely convenient to clean, and floating objects on the top surface of the arc-shaped filter screen are removed through the slag removal assembly, so that the primary treatment process of the sewage is completed, the cleaning is simple and convenient, the operation is easy, and the subsequent water treatment is convenient.

The invention relates to a secondary water supply and water storage tank which comprises a tank body, an end cover, a cleaning device and a moving device. The end cover is detachably arranged at the upper end of the tank body, the cleaning device is arranged between the end cover and the tank body, a sidewall of the cleaning device is connected with a sidewall of the moving device, the upper end of the tank body is provided with a water inlet, the lower end of the tank body is provided with a water outlet and a sewage draining outlet, the upper end of the end cover is provided with a feeding inlet, and the cleaning device comprises a rotation motor, a rotating shaft, a sidewall cleaning mechanism, a top cleaning mechanism and a bottom cleaning mechanism. According to the secondary water supply and water storage tank, workers can clean the inner wall of the tank body without entering the interior of the water tank, the labor intensity of the workers is effectively reduced, hidden riskscaused by the fact that the workers work in the tank body with poor air circulation are eliminated, the cleaning device is detachably connected with the tank body, and the workers can conveniently andindependently overhaul and maintain the cleaning device.

The invention discloses a 3D super-swirling siphon closestool. The 3D super-swirling siphon closestool comprises a closestool main body, wherein the closestool main body comprises a closestool tank, a siphon pipe, a flushing water passage and a jetting water passage; a flushing hole is formed in the top of the closestool tank; a jet orifice and a drain outlet are formed in the bottom of the closestool tank; the flushing hole is communicated with the flushing water passage; the jet orifice is communicated with the jetting water passage; the drain outlet is communicated with the siphon pipe; an angle is formed between the hole surface of the flushing hole and the side surface of the closestool tank, so that water jetted from the flushing hole does circumferential movement around the closestool tank to form a first swirl; the jet orifice is formed in the side of the closestool tank, water jetted from the jet orifice does circumferential movement around the closestool tank to form a second swirl; the second swirl and the first swirl have the same swirling direction. The 3D super-swirling siphon closestool can achieve a double-swirl water flow, speeds up siphon, speeds up drainage, sufficiently reduces noises and has significant water-saving and draining effects.