85 results about "Oil sludge" patented technology

This utility model relates to the field of wind power yaw technology and discloses a waste oil collection device for the maintenance of a wind turbine yaw system. The device includes a yaw main wheel and a track component. The track component includes a calibration plate with a fixing groove at the top. A fixing component is inserted into the inner wall of the fixing groove, and a snap-fit ​​component is fixed to the bottom of the inner wall of the fixing groove. A snap-fit ​​groove is formed at the bottom of the fixing component, and the inner wall of the snap-fit ​​groove is snap-fitted to the surface of the snap-fit ​​component. A sloping shovel is fixed to the side of the fixing component away from the calibration plate, and a backhoe is fixed to the side of the sloping shovel closer to the bottom of the calibration plate. This utility model secures the fixing component to the fixing groove of the calibration plate, ensuring that the bottom of the sloping shovel and the backhoe are tightly fitted to the top of the calibration plate. Thus, during the forward rotation of the yaw main wheel, the sludge on the inner wall of the yaw main wheel is scooped up by the sloping shovel, and the backhoe similarly scoops up the sludge during the reverse rotation. Workers only need to clean the sloping shovel and backhoe periodically.

This utility model relates to the technical field of oil sludge separation devices, specifically to a solid-phase and liquid-phase separation device for oil sludge treatment. It includes an oil sludge crushing box, an oil-liquid separation box installed at the bottom of the crushing box, and a box cover installed at the top of the crushing box. A crushing mechanism is fixed to the top of the box cover and penetrates through the crushing box into the oil-liquid separation box. A separation mechanism is installed between the crushing box and the oil sludge crushing box, penetrating into the oil-liquid separation box. A filter plate is bolted to the inside of the crushing box. This utility model achieves crushing and stirring of the oil sludge through the cooperation of the internal parts of the crushing mechanism, and compresses the crushed sludge to better separate the oil and water within the sludge. The separation of oil and water is achieved through the cooperation of the internal parts of the separation mechanism, creating separate oil and water layers for easier separation and discharge.

The embodiment of the application provides a kind of oily sludge reduction cleaning equipment, it is related to oil exploitation, refining technical field, including equipment ontology, equipment ontology includes scraping floating oil filter module, oil sludge dehydration module and oil sludge lifting module, scraping floating oil filter module is provided with feed aeration zone, floating oil salvage area and floating oil scraping area in, aeration device is provided in feed aeration zone, oil extraction device is provided in floating oil salvage area, oil scraping device is provided in floating oil scraping area, the end of oil scraping device is provided with oil outlet, oil sludge propulsion device is provided in the bottom of scraping floating oil filter module, oil sludge lifting module is communicated with scraping floating oil filter module at the position of oil sludge propulsion device close to tail portion, the inside of the oil sludge lifting module is equipped with oil sludge lifting device, the oil sludge lifting device is connected with oil sludge dehydration module, and oil sludge dehydration device is provided in the oil sludge dehydration module.The application has the effect of cleaning, oil removal, degassing, dehydration.

The present application relates to the technical field of oil tank cleaning, and discloses an oil tank cleaning robot, which comprises an oil tank body, the inner wall of the oil tank body is provided with an adsorption walking assembly, the adsorption walking assembly comprises a walking mother ship platform which is rotatably installed on the outer surface of the oil tank body, the inner surface of the oil tank body is provided with a corresponding electromagnetic adsorption disc, the bottom end of the electromagnetic adsorption disc is fixedly connected with a robot body, and the bottom end of the robot body is rotatably installed with a cleaning scraping assembly, so that the stable movement and bearing of the robot on the arc-shaped tank wall are solved; meanwhile, the angle-adjustable mechanical scraper, the high-pressure rotating nozzle and the closed collecting shell with the built-in conveying belt are integrated, the continuous closed-loop operation of'scraping, peeling and high-pressure crushing' for the hard oil sludge is realized, the secondary pollution problem caused by the splashing of oil stains in the traditional cleaning mode is fundamentally avoided, and the cleaning efficiency and safety are significantly improved.

The application discloses a kind of ashless hydraulic oil lubricating oil compositions, according to mass percentage includes the following components: ashless antiwear agent 0.2-0.4wt%, bisphenol antioxidant 0.2-0.5wt%, auxiliary antioxidant 0.1-0.25%, ionic liquid 0.2-0.5wt%, rust inhibitor 0.02-0.04wt%, passivator 0.02-0.05%, demulsifier 0.01-0.02wt%, anti-foaming agent is 0.01-0.02wt%, ester base oil 1-5wt%, the rest is base oil.The hydraulic oil lubricating oil composition of the application has oxidation resistance, low sludge, hydrolytic stability, passes through high-pressure plunger Komatsu HPV35+35 bench test, meets the harsh operating condition requirements of high-temperature high-pressure hydraulic system, and can be applied to various hydraulic systems.

The utility model discloses a kind of high-efficiency paper tape filter, belong to paper tape filter field.A kind of high-efficiency paper tape filter, including liquid storage tank, filter screen plate is equipped in liquid storage tank, paper tape is equipped above the filter screen plate, the paper tape filter further includes: gland, including gland part and gland support, the cavity is formed in the gland part inside, filter chamber is formed between the cavity and paper tape;Driving mechanism is connected with the gland support, drives the up-and-down lifting movement of the gland;Limiting mechanism, the paper tape is limited;When the gland descends, make paper tape adhere to the gland;When the gland is lifted, make paper tape separate from the gland;Paper release frame, located in one side of the liquid storage tank;Paper release roll is set on the paper release frame;Paper receiving frame, located in the other side of the liquid storage tank;Paper receiving roll is set on the paper receiving frame.The utility model of a kind of high-efficiency paper tape filter uses positive pressure liquid inlet, overcome the resistance of oil sludge or waste wax to paper tape, improve liquid inlet efficiency, and reduce paper tape consumption.

1. The name of the design product: oil furnace (environmental protection). 2. The use of the design product: cooking stove for cooking at home and business. 3. The design points of the design product: the overall shape of the product. 4. The picture or photo that best indicates the design points: perspective view.

This invention discloses an oil sludge extraction system, comprising a separation tower, multiple partition units, and an inlet pipe. The separation tower includes a feed section and an extraction section from top to bottom. The feed section has an inlet and an outlet. The inlet is for the oil sludge and extraction solvent to enter. The extraction section is used to extract light tar from the oil sludge and has a light oil outlet for discharging the light tar. The multiple partition units are spaced apart from top to bottom within the extraction section. Each partition unit includes multiple partition tubes spaced apart along a first direction and extending along a second direction. The inlet pipe is located on the separation tower and extends one end into the extraction section. The pipe wall of the inlet pipe has multiple spaced-apart vents for introducing heating gas into the extraction section. The oil sludge extraction system of this invention has the advantages of high oil yield.

The present application relates to non-ferrous metal processing wastewater treatment technical field, specifically to a kind of aluminium processing waste emulsion concentrate deep demulsification process, the concentrate is obtained after the evaporation concentration 6~10 times of aluminium processing waste emulsion, the process includes the following steps: S1, the concentrate is transported to demulsification device, with 30~60 r / min stirring rate is gently stirred, so that the concentrate is in homogeneous mixing state;S2, 98% concentrated sulfuric acid is added to demulsification device as demulsifier in dropwise manner, dropwise rate is 0.5~1.0 L / h, and the amount of demulsifier is 0.5%~2.0% of the weight of concentrate.Indirect heating method is used instead of steam aeration in prior art, no additional water is introduced into the reaction system, to avoid the concentrate is diluted by steam.Oil sludge output is reduced to 18%~20% of the volume of concentrate, which is 20%~28% lower than 25% of steam aeration scheme;Completely stratification time is shortened to 5.0 hours, which is 33% shorter than 7.5 hours of steam aeration scheme.

The present application relates to oil gun control technical field, especially in kind of automatic cleaning oil gun atomizing piece device and alarm system, including: cleaning device, alarm system and DCS interlock loop, cleaning device includes: propeller, cleaner, cleaner is embedded in the oil gun pipeline, the cleaner is provided with propelling track, propelling track is arranged on the inner wall of oil gun pipeline, propelling pipe, propelling pipe is embedded in the oil gun pipeline, propelling pipe is fixedly connected with propelling track, atomizing piece, atomizing piece is arranged in the oil gun pipeline, atomizing piece is provided with a plurality of atomizing holes, and the cleaner is consistent with a plurality of atomizing holes, propelling pipe is used for advancing the cleaner along the propelling track to the atomizing piece, the cleaner is used for cleaning the oil sludge in a plurality of atomizing holes on the atomizing piece, the present application can be in the unit put into oil gun timing in and out cleaning device to clean the oil gun atomizing piece, change the traditional disassembly cleaning mode, improve the work efficiency.

This utility model relates to the field of hydraulic oil testing technology for engineering machinery, specifically a hydraulic oil oxidation life testing device. The device includes a main body with an outer frame. An equipment cavity is formed inside the outer frame, and an oil tank is fixed to the bottom of the equipment cavity. In this utility model, during a circulation simulation process in a circulating pipeline, a plunger pump, in conjunction with this testing device, can simulate the operating conditions of engineering machinery equipment. Hydraulic oil oxidation durability tests are conducted under high temperature, high pressure, ventilation, and the presence of a Cu catalyst. By examining indicators such as changes in oil viscosity, increase in acid value, sludge formation, and remaining oxidation life, the device can monitor the performance change trend during oil degradation, comprehensively evaluate the oxidation durability of the hydraulic oil, predict the service life of the oil in the equipment, thereby reflecting the true lifespan of the oil, improving evaluation efficiency, and also enabling comparative experiments with multiple samples, which is more conducive to the screening of oil formulations.

The utility model discloses a hand brake, belongs to rail transit equipment field, including drive shaft, transmission nut, self locking ratchet and drive gear. Drive shaft is provided with the compression part. Transmission nut and drive shaft form the screw pair. Self locking ratchet is limited between compression part and transmission nut. Drive gear and transmission nut can pass through each other transmission torque. Transmission nut and drive shaft are provided with sealing ring between, and sealing ring is located between self locking ratchet and screw pair. Drive shaft and transmission nut form the screw pair structure, are used for realizing the loading and unloading of brake force. Self locking ratchet realizes the self locking function of keeping the brake state, prevents the load rebound. Drive gear and transmission nut realize the mutual transmission of torque force, realize the conversion of external driving force input. Sealing ring sets up in the front end of screw pair, and the abrasive dust is prevented from invading the screw meshing surface, reduces the risk of oil mud cementation, improves the long-term reliability of system.

The application provides a butterfly wing-sphagnum bionic grinding wheel and internal thread grinding system, and relates to the field of grinding systems. The application aims at the problem that the current bionic grinding wheel is difficult to adapt to the harsh environment during internal thread grinding, the grinding wheel matrix is difficult to discharge chips and is easy to be blocked, and the grinding fluid is difficult to stay, causing insufficient lubrication. The application is characterized in that the V-shaped working surface component is used to simulate the super-hydrophobic layer of butterfly wings, the micro-protrusion part and the secondary micro-nano texture structure are used to reduce the surface energy and adhesion of the matrix surface, so that the oil sludge generated during grinding is difficult to adhere, and the self-cleaning is realized by means of the slope of the V-shaped working surface and the rotating centrifugal effect, effectively relieving the blocking phenomenon in the narrow space. The bionic sphagnum hydrophilic abrasive particle cluster arranged in the concave groove is used to form a small liquid storage unit by using the porous hydrophilic structure, so that the stored grinding fluid can be released during the grinding of the workpiece, effectively improving the heat dissipation and chip removal environment of the internal thread grinding area, reducing the risk of workpiece surface burn, and improving the processing quality.

The utility model belongs to oil processing technical field, concretely relates to a filter with oil sludge cleaning function, including base, the top of base is provided with first casing, the inside of first casing is provided with second casing at the top of base, the inside top of base is fixedly provided with power component at the middle position, the output of power component is provided with rotating component, the front and back of power component bottom are all fixedly provided with first connecting rod, first connecting rod is provided with first touch tooth on the side close to second casing, a plurality of second touch tooth are provided with equal interval at the position corresponding to first touch tooth on the outer wall of second casing. The utility model can clean the impurity adhered to the inner wall of second casing, and filter through the filter core, so that the impurity washed down adheres to the filter core through the filter, thereby reducing the probability that the impurity adheres to the inner wall of second casing to form oil sludge, and facilitating the cleaning of the inner wall of second casing.

The utility model discloses oil field oil sludge centrifugal solid -liquid separation reduction machine relates to oil field oil sludge processing technical field, the utility model discloses a base is fixedly connected with a plurality of support blocks to the outer wall of base, the utility model discloses a drum and turbine blade are set up, because the rotation direction of first gear and second gear is different, so when drum rotates clockwise, then the connecting pipe will rotate counterclockwise, so need to set up the blade of turbine blade into left -hand blade in advance, at this moment can send the object to the small end of drum through the rotation of turbine blade, and because turbine blade is reverse rotation, so the shear force produced when it rotates can cut the solid, reached through the rotation of turbine blade and drum opposite, utilize the shear force of turbine blade and cut the object conveniently extrude liquid, prevent appearing because the inside of solid has liquid, and only rely on centrifuge rotation produced centrifugal force to be difficult to completely carry out solid -liquid separation, leading to the separation effect of device is poor.

This invention belongs to the field of solid waste treatment and resource utilization technology, and discloses a surfactant elution and biochar synergistic electro-osmotic dewatering process for oily sludge and its application. Addressing the problems of high water content (>96%), strong insulation due to oil film coating, and difficulties in conventional dewatering of oily sludge, this invention adopts a coupled route of "liquid phase modification - mechanical pre-dewatering - electro-osmotic deep drying". First, surfactants are used to remove the oil film on the surface of sludge particles; then, biochar is added to construct a rigid conductive framework, and the water content is reduced to 80%~85% to form a sludge cake through flocculation and mechanical pressure filtration; finally, deep dewatering is carried out under the synergistic effect of electric field and mechanical pressure. This invention uses biochar to solve the problems of high resistance and high energy consumption of oily sludge, while combining Joule heating effect to assist in viscosity reduction. The water content of the treated sludge can be reduced to below 60%, and some oil is recovered during dewatering. It features high treatment efficiency, low energy consumption, long electrode life, and high resource utilization.

The embodiment of the present application provides an oil sludge chain plate conveyor and an oil sludge pyrolysis system. The oil sludge chain plate conveyor comprises a rack, a transmission mechanism and a chain plate mechanism. The transmission mechanism is arranged on the rack, the chain plate mechanism comprises a plurality of chain plates, each chain plate is arranged on the transmission mechanism, and each chain plate comprises a chain plate body and a lap joint part extending along one side of the chain plate body and towards another chain plate adjacent to the chain plate. The lap joint part of one chain plate abuts one side of the thickness direction of the chain plate body of the chain plate adjacent to the chain plate, and the side is arranged close to the transmission mechanism. The oil sludge chain plate conveyor avoids the problem of oil sludge seepage along the gap between adjacent chain plates through the cooperation between the lap joint part and the chain plate body. Therefore, the oil sludge chain plate conveyor according to the embodiment of the present application has the advantages of avoiding chain plate conveyor seepage, improving pyrolysis stability and pyrolysis efficiency.

This invention relates to a rust-preventive, degreasing, and sludge-removing water-based cleaning agent and its preparation method, belonging to the field of metal surface cleaning technology. This invention aims to solve the problems of low efficiency in removing old sludge from existing water-based cleaning agents, easy rust re-emergence in cleaned metals, and the inability of a single product to simultaneously address cleaning and rust prevention. It consists of the following components by weight percentage: 2%-7% fatty alcohol polyoxyethylene ether (AEO-9), 2%-5% oil stain remover, 3%-10% emulsifier, 3%-12% rust and corrosion inhibitor, 10%-20% alkaline additive, 2%-6% solubilizer, 0.05%-0.15% defoamer, and the balance being deionized water. This invention is suitable for surface cleaning of various metal materials such as carbon steel, cast iron, and stainless steel, and can meet the cleaning and rust prevention needs of various industrial equipment such as machine tools, injection molding machines, engines, and hardware accessories.

The application discloses a compressor oil additive composition, which comprises the following components in percentage by mass: 10-50% of an antioxidant, 5-30% of a double ionic liquid, 5-20% of an extreme pressure anti-wear agent, 2-8% of a light stabilizer, 1-5% of a demulsifier, 1-5% of an antifoaming agent, and the balance of diluents, wherein the sum of the percentage by mass of the above components is 100%. The application further discloses a compressor oil, which is prepared by blending the composition with a mineral type base oil or a synthetic type base oil. The double ionic liquid complex system of the double imidazole cation and the double phosphate anion exhibits excellent rust resistance, corrosion resistance and oxidation resistance, can provide good protection for metal under high temperature and high pressure and strong corrosion environment, reduces the generation of carbon deposition, paint film and sludge, and also has excellent thermal stability, extreme pressure anti-wear property, emulsion resistance and antifoaming property, and meets the lubrication requirements of compressor equipment under high temperature and high pressure and strong corrosion environment in the petroleum refining, large ship and other industries.

This invention provides a hot water washing system for oily sludge that integrates a twin-helix mixer and a disc centrifuge. The system includes a feeding unit, a twin-helix mixing unit, and a disc centrifugal separation unit. The feeding unit feeds material into the twin-helix mixing unit. The inlet of the disc centrifugal separation unit is connected to the outlet of the twin-helix mixing unit via a feed pump. The disc centrifugal separation unit centrifuges and separates the oily sludge treated by the twin-helix mixing unit. The twin-helix mixing unit achieves efficient convective mixing of oily sludge with hot water and chemicals. The disc centrifugal separation unit enables rapid separation of the oil-water-sludge three phases. Simultaneously, a temperature control unit can regulate the material temperature within the mixing unit in real time, and a chemical addition unit precisely proportions the cleaning agents. This highly integrated system improves mixing uniformity by 20%-30% and separation efficiency by 15%-25% compared to conventional equipment, making it suitable for the efficient and harmless treatment of various types of industrial oily sludge.

The utility model discloses an oil sludge treatment device based on aeration facilities, including processing box, stirring mechanism, aeration mechanism and photovoltaic mechanism, and stirring mechanism includes first helical agitator, second helical agitator, gas permeable box, first sprocket, motor, transmission chain and second sprocket, and the motor is used to drive first helical agitator and second helical agitator rotation, and aeration mechanism includes cyclone diffuser, pressure -resistant connecting pipe and steam generator, and steam generator is used to drive cyclone diffuser and spray steam, and photovoltaic mechanism includes energy storage battery, inverter, photovoltaic controller and photovoltaic board. The utility model discloses through helical agitator and steam jet cooperation, ensure that oil sludge and steam contact fully and form even mixed phase state, form high temperature airflow disturbance, promote oil, water, solid phase's physical separation in oil sludge, play the effect of double efficient aeration treatment oil sludge.

The application belongs to the technical field of oil sludge separating agents, and specifically provides an oil sludge separating agent and an oil sludge separating method, and the preparation steps include the following: taking propylene glycol block polyether, a coagulant and an oil capturing agent, stirring, and obtaining; the preparation steps of the oil capturing agent include the following: S01. Taking polycaprolactone, adding acetone to heat and disperse to obtain A liquid; S02. Taking hydroxypropyl-beta-cyclodextrin and propyl gallate, heating, adding water and stirring, then adjusting pH, adding ethylenediamine disuccinic acid, and continuing to stir to obtain B liquid; S03. Dropping A liquid into B liquid, maintaining stirring until mixing is complete, and then rotary evaporation to collect solid components to obtain. After the oil sludge is treated by the oil sludge separating agent and the separating method, the total oil removal rate of the oil sludge is greater than or equal to 92.5%.

This invention discloses a method for preparing an ozone catalyst based on oily iron sludge, comprising: adding polyacrylamide, sintering plant electrostatic precipitator ash, and bentonite to dried and pulverized hot-rolled oily sludge, continuously stirring for a set time to obtain a homogeneous material, drying the homogeneous material to a set moisture content to form granules, and carbonizing the granules to obtain an ozone catalyst; effectively solving the problems of harmlessness, volume reduction, and resource utilization of metallurgical solid waste hot-rolled oily sludge, and innovatively providing a production route for an ozone catalyst with low cost and good catalytic performance.

The application discloses a kind of oil-containing metal solid waste processing methods based on pressurized dissolution and vacuum strengthening separation, belong to metallurgical industry solid waste processing and resource recovery technical field, including the following steps: liquid organic solvent is mixed with dry sludge in inert gas under heating and pressurization, solvent-sludge mixture is obtained;And solvent-sludge mixture is gradient temperature distillation in vacuum environment, wherein gradient temperature distillation includes: first stage distillation is carried out, and organic solvent is recovered;Second stage distillation is carried out at 280~320 DEG C, and recovered oil and solid residue are obtained;Wherein the organic solvent used is saturated hydrocarbon.The process flow of the processing method is simple, not only the characteristic component obtained by recovery lubrication is well maintained;And, the oil content of the obtained solid residue can be greatly reduced.

The application relates to an oil sludge cleaning device which comprises a pressure cleaning device and an oil sludge collecting device. The pressure cleaning device comprises an oil chamber and a pressure supplier connected with the oil chamber. The oil chamber is filled with filter oil and inert gas, and the oil chamber is communicated with a transformer. The pressure supplier is used for providing pressure between the oil chamber and the transformer, so that the filter oil and the inert gas form an oil-gas mixture which is introduced into the transformer. The oil sludge collecting device comprises a recovery container, a pipeline assembly and an adsorption assembly. One end of the pipeline assembly is communicated with the transformer, and the other end is communicated with the recovery container. The adsorption assembly is used for sucking out the oil sludge in the transformer to the recovery container through the pipeline assembly. The oil sludge cleaning device is provided with the pressure supplier, and the oil-gas mixture is introduced into the transformer to impact the oil sludge adsorbed on the transformer, so that the oil sludge adhered to the surface of the internal components of the transformer is better discharged. The cleaned oil sludge is collected in the recovery container through the adsorption assembly, and the cleaning device can be operated in a system mode and effectively improves the cleaning effect.

The utility model discloses an oil sludge pyrolysis is with sundry screening device relates to oil sludge pyrolysis technical field, including screening jar body, the bottom fixed mounting of screening jar body has the pipe of discharging with valve, the inside of screening jar body is provided with screening structure, the screening structure includes square bar, square bar rotatory mounting is in the inside bottom of screening jar body, the outside of square bar is provided with slide column, the outside of slide column is provided with first filter screen and second filter screen, this oil sludge pyrolysis is with sundry screening device, through respectively rotating two butterfly bolts, cancel the limiting effect to two positioning plate, at this moment can the annular plate from the bottom end of slide column slide out, thereby removes the limiting effect to first filter screen and second filter screen, thereby can first filter screen and second filter screen from the outside of slide column slide out replacement, and the quick dismounting and assembly have effectively improved the use effect of device.

This invention relates to the field of lubricating oil pipe technology, and more particularly to a lubricating oil pipe for a transmission in a new energy vehicle. The pipe includes a lubricating oil pipe with a fixed base at one end. A guide seat A is slidably fitted inside the fixed base, and a piston rod is slidably fitted inside the guide seat A. A pipe wall treatment mechanism is rotatably connected to one end of the piston rod. A drive mechanism is located on one side of the pipe wall treatment mechanism, and an air inlet is located on one side of the drive mechanism. An air guide and reset mechanism is rotatably connected to the lower side of the air inlet. An oil treatment seat is fixedly connected to the other end of the lubricating oil pipe. By incorporating the piston rod and the pipe wall treatment mechanism, when the piston rod moves along the inner wall of the lubricating oil pipe, combined with the self-rotating cleaning function of the conical scraper, not only can sludge inside the lubricating oil pipe be effectively removed, but the lubricating oil flow efficiency can also be improved, the transmission service life extended, maintenance costs reduced, and the reliability and safety of the entire system enhanced.

The application discloses a treatment system and method for oily sludge, which comprises a pretreatment and storage module, a wet oxidation heat exchange reaction module, a conditioning water module, an oily sludge pumping module and a self-gas stripping sedimentation separation module. The pretreatment and storage module is used to remove impurities in foreign oily sludge, the wet oxidation heat exchange reaction module is used to perform wet oxidation reaction on the oily sludge to realize oxidation modification and demulsification, the self-gas stripping sedimentation separation module is used to perform three-phase separation on the oxidized oily sludge and utilize reaction heat and reaction gas in the oxidation reaction process, the reaction heat is used to make the temperature in the separation process higher than the 'wall temperature' to ensure efficient separation, and the reaction gas is used to adhere to oil droplets to accelerate the floating separation of the oil phase. In particular, carbon dioxide in the reaction gas dissolves in water to generate carbonic acid to form an acidic environment, which can promote the polymerization of oil droplets to improve the separation effect.

This utility model discloses a heated cleaning device for sludge removal from the inner wall of heavy oil drainage pipes. It includes a positioning sleeve with a detachable push-pull mechanism at its center, connected to a cleaning mechanism. The cleaning mechanism includes a mounting base with a rotating head at its front end. Multiple telescopic blocks are evenly distributed around the rotating head on its outer surface, each with an electromagnetic induction heating coil. A negative pressure suction hood is located at the rear end of the mounting base, with a scraper ring fitted onto it. A positioning seat for positioning the scraper ring is detachably installed at the rear end of the negative pressure suction hood. A suction hose is connected to the negative pressure suction hood, and the suction hose is connected to a recovery tank via a suction pump. This utility model integrates "thermal softening + mechanical peeling + negative pressure recovery" into a single design, eliminating the need for chemical agents, saving energy and protecting the environment, providing excellent cleaning results, and reducing cleaning costs.

This utility model belongs to the field of building drainage, specifically a grease trapping and automatic cleaning device for building risers. It includes a housing with an inlet fixedly connected to the top and an outlet fixedly connected to the bottom. The inner diameter of the housing is larger than the inner diameter of the pipe and has a smooth transition section. The housing is a metal structure that can cool the water using indoor temperature, which is beneficial for oil film solidification. The annular structure design of the filter screen ensures the passage of large debris in the water. The scraper, brush, and crusher continuously scrape the grease on the wall surface as it rotates, assisting the grease to descend and accumulate on the annular filter screen. The brush continuously cleans the filter screen as it rotates, carrying the grease to the screen. The mesh structure traps residual grease on the wall surface, and finally, the grease is separated and discharged at the spiral conveyor, preventing grease from adhering to the inner wall and causing blockage.