222results about How to "Extended cleaning cycle" patented technology

The invention discloses a high-temperature radiation furnace tube for enhancing heat transfer as well as a preparation method and application of the high-temperature radiation furnace tube. The heat-transfer-enhanced high-temperature radiation furnace tube comprises a high-temperature radiation furnace tube, namely a thick tube, of which the inner surface is subjected to roughness treatment and / or a high-temperature radiation furnace tube, namely a streaming terminal, of which the inner surface is sequentially subjected to roughness treatment and streaming structure surfacing treatment, and the roughness parameter Ra of the inner surface of the thick tube is 3.2-40.5 m; and the streaming structure is in one or more forms of a sphere, a raindrop shape and a strip shape. According to the invention, the heat conduction effect and the temperature and airflow uniformity of the furnace tube can be obviously improved through combination of slight increase of the inner surface area and a micron-scale inner surface streaming structure within a certain range, meanwhile, the filling volume of a catalyst in the furnace tube is not influenced, and obvious pressure drop at the outlet end of the furnace tube is avoided.

The invention particularly provides a control method and device for self-cleaning of a water tank. The method comprises the steps of monitoring water quality data and cleaning data of each water tank in real time, selectively obtaining environment data of the water tanks according to the water quality data and the cleaning data of each water tank, and substituting the water quality data, the cleaning data and the environment data of the water tanks into a cleaning analysis and evaluation model when the environment data is obtained, obtaining a self-cleaning treatment scheme corresponding to the water tank, executing the self-cleaning treatment scheme on the water tank, obtaining cleaning water quality data of the water tank, and substituting the cleaning water quality data into the cleaning analysis and evaluation model again to obtain a self-cleaning evaluation result of the water tank. And feeding back the self-cleaning treatment scheme and the self-cleaning evaluation result to a user terminal corresponding to the water tank, and selectively cutting off water supply of the water tank based on the self-cleaning evaluation result of the water tank. And through real-time monitoring and timely self-cleaning treatment, water quality pollution is effectively prevented, and the safety of domestic water of a user is guaranteed.

The invention belongs to the technical field of heat exchange equipment, and particularly relates to a double-layer coil pipe type multi-stage heat exchanger and a heat exchange method thereof.The double-layer coil pipe type multi-stage heat exchanger comprises multiple heat exchanger bodies which are sequentially connected in series, each heat exchanger body comprises an outer cylinder, an inner cylinder, a first-layer coil pipe and a second-layer coil pipe, and each outer cylinder is arranged on the outer wall of the corresponding inner cylinder in a sleeving mode and provided with a fluid inlet and a fluid outlet; a fluid inlet and a fluid outlet which are communicated are formed in the inner cylinders, the fluid outlet of the upper-stage inner cylinder is communicated with the fluid inlet of the lower-stage inner cylinder, and the first-layer coil pipe and the second-layer coil pipe are both arranged in an annular cavity formed by the outer cylinder and the inner cylinders.

The invention provides a reverse osmosis high-silicon-resistant scale inhibitor for coal chemical wastewater and application of the reverse osmosis high-silicon-resistant scale inhibitor. The reverse osmosis high-silicon-resistant scale inhibitor for the coal chemical industry wastewater comprises an acrylic acid-sulfonate copolymer, 1, 2, 4-tricarboxylic acid-2-phosphonic acid butane, polyacrylic acid and hydrolytic polymaleic acid, and the weight ratio of the acrylic acid-sulfonate copolymer to the 1, 2, 4-tricarboxylic acid-2-phosphonic acid butane to the polyacrylic acid to the hydrolytic polymaleic acid is (15-25): (10-20): (2-8): (1-5).

The invention discloses a bearing ring polishing device for bearing production and machining, and relates to the technical field of bearing production and machining. A machine cabinet assembly is arranged at the bottom of the top base, a grinding table is arranged in the center of the top of the top base, supporting columns are arranged at the corners of the top of the top base, a circular plate is arranged at the tops of the supporting columns, a motor is arranged at the top of the circular plate, and an electric telescopic rod is arranged at the bottom of the circular plate. Bearing rings of different specifications and diameters are clamped in a self-adaptive mode through the L-shaped arc top plate, meanwhile, the friction force is gradually increased due to the fact that the guide arc plate and the rubber soft block continuously go deep downwards along with the bearing rings, and the stability of the bearing rings on the top of the grinding table is effectively improved; and the situation that the bearing ring shakes due to high-speed rotation of the grinding disc during grinding, the preset grinding direction of the bearing ring deviates, and the phenomenon that the grinding thickness of the bearing ring is not uniform is avoided.

The utility model discloses a building underground water pressure stabilization anti-floating structure, which relates to the building pressure stabilization anti-floating field, and comprises a bottom plate, a through hole is arranged on the bottom plate, a water seepage cylinder is arranged in the through hole, a water seepage hole is arranged on the outer wall of the water seepage cylinder, a floating plate is arranged in the water seepage cylinder, and a drain hole is arranged on the water seepage cylinder. A water collecting groove is formed in the bottom plate, and a water baffle is arranged at the bottom of the floating plate. Groundwater enters the water seepage cylinder through the water seepage holes so as to guarantee the stability of the pressure of the underground water, the underground water cannot seep into the water seepage cylinder when the pressure of the underground water is too low, the underground water is filtered through the water seepage holes, the phenomenon that the drainage holes are blocked is effectively improved, and therefore the cleaning period of workers is prolonged; when the floating plate drives the water baffle to float upwards, the drainage hole is completely exposed, and at the moment, underground water in the water seepage barrel is drained into the water collection tank, so that workers can conveniently and regularly pump the underground water.

The invention discloses a direct coal liquefaction residue solvent extraction deliming method, refined asphalt and application, and relates to the technical field of solid waste resource treatment. According to the method, process conditions and process parameters are reasonably controlled, the thermal dissolution effect of an extraction agent and the liquefied residues is improved, a scale inhibitor composed of a multi-element alkyl organic matter, an auxiliary and coking washing oil is mixed with the extraction agent, then the ground liquefied residues are added into a material obtained through mixing, and the extraction agent and the liquefied residues are mixed uniformly. The slurry is prepared by controlling the stirring speed, the reaction temperature and the like; due to the addition of the scale inhibitor, the concentration of the residue extraction liquid is improved, and the treatment capacity and efficiency are enhanced; and a filter used for precision filtration adopts a stainless steel metal sintered filter element, so that the filter is resistant to higher temperature and pressure, the service life can be prolonged, and the stripping of viscous materials such as asphaltene in the liquefied residues is facilitated. The ultralow-ash refined asphalt prepared by the method can be used as a high-quality raw material of a high-end carbon material.

The utility model discloses a combined end cover with a filter screen suitable for a spiral-wound membrane component, an end cover main body comprises a first inner ring, a first outer ring and first support ribs uniformly distributed between the first inner ring and the first outer ring along the circumferential direction, a water inlet is formed in an area among two adjacent ribs, the first inner ring and the first outer ring, and a water outlet is formed in an area among the first inner ring and the first outer ring. A filter screen is arranged on the water inlet, the filter screen is fixed between the end cover body and a pressing plate through the pressing plate with the structure similar to that of the end cover body, or the filter screen is fixed to the end face of the inner side of the pressing plate in advance, and then the pressing plate is fixed to the end cover body. The filter screen structure is arranged at the water inlet of the end cover, so that when water enters, large particles can be blocked by the filter screen structure and are prevented from entering the water inlet runner of the spiral-wound membrane module, and the anti-pollution and anti-blocking effect is achieved.

The invention provides a circumferential-in and circumferential-out radial-flow type superimposed sedimentation tank, and relates to the field of sewage treatment, the circumferential-in and circumferential-out radial-flow type superimposed sedimentation tank comprises a bottom plate and a tank wall arranged above the bottom plate, and the tank wall and the bottom plate form a tank body; an annular table is arranged above the pool wall, a water inlet groove and a water outlet groove are formed in the annular table, the water inlet groove is communicated with a sewage inlet, water distribution holes communicated with the pool body are formed in the bottom of the water inlet groove and are formed in the sewage flowing direction, and a water outlet communicated with the pool body is formed in the bottom of the water outlet groove; a water diversion groove is further formed in the annular table, clean water flows into the water diversion groove from the upper end of the water outlet groove, and the water diversion groove is provided with a clean water outlet. The annular grid device is arranged below the water outlet tank, the grid device and the tank wall are arranged at an interval, so that sewage directly enters the tank body, and the water outlet flow path is prolonged in a peripheral inlet and peripheral outlet manner, so that the retention time of the sewage in the tank body is longer, and floc particles in the sewage can be fully precipitated.

The invention relates to the technical field of clothes treatment, in particular to clothes treatment equipment. The problems that an existing thread scrap filtering device is prone to causing air duct blockage, the drying efficiency is reduced, and then the user experience is affected are solved. Therefore, the clothes processing equipment comprises a box body, a drum door pivotally connected with the box body, a thread scrap removing device, an outer drum, an inner drum and a drying air duct, the outer drum, the inner drum and the drying air duct are arranged in the box body, the thread scrap removing device is installed on the drum door and located on the inner side of a window screen of the drum door, and under the condition that the drum door is closed, the thread scrap removing device can remove thread scraps. The thread scrap removing device is located in the box body and abuts against and is spliced with the front air duct of the drying air duct, so that the front air duct communicates with the inner barrel through the thread scrap removing device; and the thread scrap removing device is arranged to be capable of filtering the drying airflow flowing from the inner barrel to the front air duct so as to separate thread scraps in the drying airflow and collecting the thread scraps. The clothes processing equipment is high in drying efficiency and good in user experience.

The utility model relates to the technical field of expansion joints, in particular to a precise anti-impact expansion joint with an anti-sinking function, which comprises two bases, mounting cavities are arranged on opposite sides of the bases, concrete base blocks are fixedly mounted on the inner walls of the mounting cavities, guide components are arranged in the mounting cavities, and the guide components are arranged on the inner walls of the concrete base blocks. And the guide assembly comprises a guide supporting plate, a telescopic assembly is fixedly installed at the center of the top of the guide supporting plate, and sliding cavities are formed in the tops of the opposite sides of the base correspondingly. The problems that the manufacturing cost is high, the machining process is complex, the waterproof performance is common, cleaning is inconvenient, and in the expansion and contraction process of the expansion joint, the comb plate is prone to damage, difficult to repair and common in anti-sinking performance are solved, the anti-sinking effect is achieved, impact resistance can be achieved, the service life of the expansion joint is prolonged, and the service life of the expansion joint is prolonged. The cleaning period of the expansion joint is prolonged, and physical exhaustion of workers is reduced.

The utility model relates to the technical field of electric vehicle equipment, and provides a heat dissipation mechanism for double battery compartments of an electric vehicle, which comprises a battery compartment body, a heat dissipation compartment body is arranged on one side of the battery compartment body, and a ventilation opening is arranged between the heat dissipation compartment body and the battery compartment body, so that the interiors of the heat dissipation compartment body and the battery compartment body are communicated with each other; partition plates are symmetrically arranged in the heat dissipation bin body, a filtering cavity is formed between the partition plates and the two side walls of the heat dissipation bin body, a filtering assembly is arranged in the filtering cavity, air inlet holes communicated with the filtering cavity are formed in the side walls of the heat dissipation bin body, and the opening side of the filtering assembly completely surrounds one ends of the air inlet holes. According to the utility model, the defects in the prior art are overcome, the design is reasonable, the structure is compact, air enters the heat dissipation bin body after being filtered by the filtering assembly, and the situation that dust enters the battery bin body to cause short circuit of batteries in the battery bin body and faults are caused is avoided. In the running process of the electric vehicle, the filter cylinder vibrates to enable dust to fall into the dust storage cylinder to be stored, and the cleaning period for cleaning the filter assembly is greatly prolonged.

The invention relates to the technical field of exhaust pipes, in particular to an exhaust pipe which comprises a round pipe, a gas inlet pipe and a gas outlet pipe are connected to the two ends of the round pipe correspondingly, a resonance mechanism is arranged on the side, close to the gas inlet pipe, in the round pipe and changes the flowing direction and speed of waste gas, and a filtering mechanism is arranged on the side, close to the gas outlet pipe, in the round pipe and comprises a rotating disc. A plurality of air holes are annularly formed in the rotating disc at equal intervals, filter plates are fixedly arranged on the sides, close to the air inlet pipe, in the air holes, a driving mechanism is arranged on the side, away from the air inlet pipe, of the rotating disc, the driving mechanism comprises a rotating shaft, and the rotating shaft is coaxially and rotatably connected with the circular pipe through a bearing seat; the end of the impact rod makes impact contact with the outer wall of the side, close to the air outlet pipe, of the turntable. The filtering mechanism and the driving mechanism are arranged, the cleaning period of the filtering mechanism is greatly prolonged, for sailing in special environments and special weather, the maintenance cost of the aircraft is reduced, the use efficiency of the aircraft is also improved, and the design is ingenious.

The invention belongs to the field of high-power galvanometers, particularly relates to a high-power galvanometer with a dustproof mechanism, and solves the problems that in the prior art, dust cannot be treated in time in the using process of the high-power galvanometer, solids and batting on a filter screen are not easy to clean, and the service life of the high-power galvanometer is affected. Comprising a galvanometer body, a welding head, a mounting part, an exhaust fan and a dust cover, the galvanometer body comprises the welding head, the mounting part and the exhaust fan, the welding head can directly make contact with a machining part, the mounting part can be fixed through a bolt to be connected with an external connecting rod, and the exhaust fan is mounted on the dust cover through a bolt. The dust cover is fixedly arranged outside the welding head in a sleeving mode, a dust fog channel is formed in the dust cover, an outlet of the dust fog channel right faces the exhaust fan, the dust fog generated in the machining and using process of the galvanometer is intensively sucked by additionally arranging the dust cover outside the high-power galvanometer, and the high efficiency of the galvanometer in the using process and the clean working environment are kept all the time.

The invention relates to the technical field of semiconductor material processing, in particular to a wafer transfer device, a wafer transfer method and a wafer bonding method. The wafer transfer device comprises a transfer disc which is provided with a first surface and a second surface, the first surface is provided with a wafer bearing area and a transition area, the wafer bearing area is internally provided with a plurality of uniformly distributed negative pressure holes, and the first surface is communicated with the second surface through the negative pressure holes; the guide hole intersects with the edge of the wafer bearing area and enables the first surface and the second surface of the transfer disc to be communicated; the negative pressure disc is used for supporting the transfer disc from the second surface of the transfer disc and can form negative pressure; and the lifting platform can support the wafer to reciprocate along the first direction. The wafer transfer device and the wafer transfer method provided by the invention are used for stably transferring wafers in different technological processes, especially in a damaged technological process, and can reduce the formation of pollutants and reduce the pollutant cleaning cost.

The present invention relates to the technical field of material processing, and discloses a silicon-containing processing aid for thermoplastic resin and a preparation method thereof. The raw material components of the silicon-containing processing aid include modified polysiloxane, ultrahigh molecular weight polysiloxane, filler and additives; the structural formula of the modified polysiloxane is shown in the general formula (1): (1) The silicon-containing processing aid for thermoplastic resin provided by the present invention can improve the problems of die buildup and melt fracture of thermoplastic resin and its composite material during extrusion; can greatly improve the crystal point problem during film production; and further extend the screw cleaning cycle and equipment service life during processing of thermoplastic resin and its composite material, thereby improving production efficiency and product quality.

The tail gas purification complete equipment applied to the gas turbine relates to the technical field of tail gas purification, and is characterized in that the tail gas purification complete equipment comprises a gas inlet pipe, a purification cylinder body is arranged on the right side surface of the gas inlet pipe, and a stainless steel packaging plate is arranged on the outer surface of the purification cylinder body; an exhaust manifold is arranged on the right side surface of the air inlet pipe, and sensor frames are arranged on the outer surfaces of the exhaust manifold and the air inlet pipe; the purification barrel comprises a purification barrel body, a first stainless steel packaging ring and a second stainless steel packaging ring, the first stainless steel packaging ring is installed on the inner wall of the purification barrel body, and a first purifier carrier and a second purifier carrier are sequentially installed in the purification barrel body from left to right. In order to solve the problem of large effective reaction volume of the corresponding tail gas purification device, the purification barrel body is provided with a continuous oxidation reaction device, so that the self-cleaning function of the purification equipment is achieved.

The invention relates to the technical field of membrane separation, and discloses a brand new medicament for efficiently repairing a reverse osmosis membrane, the brand new medicament comprises nano self-healing particles and an anti-fouling polymer which are used for constructing a composite membrane, the composite membrane comprises a base membrane layer, an anti-fouling polymer membrane layer and a nano self-healing layer, the nano self-healing particles are selected from nano-silver or nano-zinc oxide particles, and the anti-fouling polymer membrane layer is selected from nano-silver or nano-zinc oxide particles. Carrying out surface modification; the anti-fouling polymer material is selected from polyethylene glycol or polytetrafluoroethylene and forms an anti-fouling layer with low surface energy; the surface modification of the nano self-healing particles adopts a silane coupling agent for treatment. The anti-fouling polymer membrane layer is added on the base membrane layer, the anti-fouling polymer membrane layer has good hydrophilicity and low surface energy, adsorption and deposition of pollutants on the surface of the membrane can be effectively reduced, high water flux and separation performance of the membrane are maintained by reducing accumulation of the pollutants on the surface of the membrane, the cleaning period is prolonged, and performance degradation caused by pollution is reduced.

The utility model discloses a multi-stage discharging screening machine, which belongs to the technical field of screening devices and comprises a vibrating screening machine main body, and a material distributing device and a cleaning device are mounted on the vibrating screening machine main body. The cleaning device comprises a guide assembly and a scraping assembly, the guide assembly and the scraping assembly are both connected with the vibrating screen classifier body, and the guide assembly is connected with the scraping assembly. Through the mode, the scraping component is driven by the guide component to scrape the screen, so that tea adhered to the screen is cleaned and falls off, and the cleaning period of the screen is prolonged; through the arrangement of the first screen and the second screen, the tea leaves can be subjected to multi-stage screening and discharging; the tea leaves at the feeding port are separated through the material distributing device, so that the clustered tea leaves are dispersed, and the screening effect is better.

The utility model discloses a security and protection monitoring device based on face recognition, and relates to the security and protection monitoring device technology field, the security and protection monitoring device comprises a recognition panel, a recognition lens and a sun shield, the outer wall of the sun shield is provided with a rain shield, the inner wall of a mounting groove is provided with a first power-on module, the inner wall of the mounting groove is provided with an electromagnet, and the electromagnet is provided with a second power-on module. A light supplementing lamp is installed on the outer wall of the first power-on module, a second power-on module is installed on the outer wall of the light supplementing lamp, a magnet body is installed on the outer wall of the light supplementing lamp, and a light gathering plate is installed on the outer wall of the recognition panel. The auxiliary mechanism is installed, the sun shield is used for shielding outside sunlight, the rain shield is used for protecting the recognition lens, and the light supplement lamp is installed in the installation groove, so that when outside light is dark, the light supplement lamp is turned on to light the face of a person, the recognition lens can clearly recognize the face of the person, and the recognition effect is good. And the identification accuracy of the identification lens is prevented from being influenced by the external environment.

The application discloses a honeycomb type rainwater collecting pool in the technical field of municipal engineering drainage, which comprises six side plates, a water inlet pipe, a plurality of columns and two three-hole side plates, two closed side plates and two double-hole side plates. Each column is arranged on one side of each side plate and is in clamping connection with the side plate. Each three-hole side plate, closed side plate and double-hole side plate is in clamping connection with the column and has a hexagonal shape. The honeycomb type modular design is adopted, the six side plates, three-hole side plates, closed side plates and double-hole side plates are clamped and connected through the columns, the overall shape has no fixed size limitation, the number of modules can be freely increased or decreased and the combined form can be arbitrarily adjusted according to the actual space of narrow and irregular sites such as road corners at the end of rainwater branch pipes, cracks in old communities and narrow green belts, and meanwhile, the clamping and positioning structure of the upper fixed plate, lower fixed plate and column ensures the overall stability after assembly.

The invention relates to the technical field of wine anti-oxidation, in particular to a novel fruit wine anti-oxidation device which comprises a wine storage tank, an extrusion device installed at the upper end of the wine storage tank and a wine outlet tank fixed to the bottom face of the wine storage tank, and a wine guide opening is formed between the wine storage tank and the wine outlet tank; a filtering assembly is arranged on the bottom wall of the wine storage tank and comprises a top plate, a folding filter screen and a bottom ring, the bottom ring is in threaded connection with the bottom wall of the wine storage tank and is concentric with the wine guide opening, the folding filter screen is a tubular column, the bottom end of the folding filter screen is fixedly connected to the bottom ring, and the top plate is fixedly connected to the upper end of the folding filter screen; a plurality of supporting assemblies are annularly arranged on the side edge of the filtering assembly and used for supporting the top plate, each supporting assembly comprises a limiting frame and a supporting strip, and the limiting frames are fixedly connected to the bottom ring. Impurities generated in the fruit wine storage process can be filtered and cleaned, so that the purity of the led-out wine is guaranteed, and the purity and taste of the wine are guaranteed.

The present invention relates to a method for preparing low-carbon olefin raw materials by selective desulfurization and denitrogenation of diesel, wherein the diesel raw material oil is contacted with a selectively regulated hydrofining catalyst for hydrofining reaction, and the obtained refined oil is subjected to solvent extraction to obtain extracted oil rich in aromatics and raffinate oil rich in alkanes; wherein the raffinate oil is used as a high-quality raw material for steam cracking to produce ethylene, and the extracted oil can be directly used as a raw material for hydrocracking or catalytic cracking to produce high-octane gasoline or BTX light components. The present invention optimizes the raw materials and process structure of the existing device, not only fully utilizes various raw material resources, but also effectively solves the problem of diesel outlet and ethylene material shortage.

The present application belongs to the technical field of oily wastewater treatment equipment, and particularly relates to a combined filter and oil removal equipment for oily wastewater treatment. The equipment comprises coalescing filter cartridges and modified quartz sand fillings arranged in the coalescing filter cartridges, and combines a traditional filling filter with a filter cartridge type coalescing oil removal device to form a structure of 'fillings in filter cartridges'. The present application disperses the filter fillings in the coalescing filter cartridges, effectively avoids the problem of hardening of large filling slabs, improves the stability and service life of the system, and has the functions of efficient oil removal and filtration of suspended solids. The equipment has compact structure, small volume and stable operation, can significantly improve the filtration efficiency and reduce the maintenance frequency, and is suitable for oily wastewater treatment systems with large water quality fluctuations.

The utility model relates to the technical field of planting, and provides a greenhouse ventilation device based on informatization control, which is not easy to block and long in cleaning period and comprises an air inlet main machine and a ventilation pipe arranged on one side of the air inlet main machine and extending into a greenhouse. The air inlet main machine comprises an air inlet shell with one side connected with the ventilation pipe and an air extractor arranged in the air inlet shell, a filter screen is detachably arranged on the inner wall of the air inlet shell, the top of the filter screen penetrates through the air inlet shell and extends upwards, and a rotary cleaning block capable of making contact with the filter screen is further arranged on the side, located on the filter screen, of the inner wall of the air inlet shell. The airflow enters to drive the rotary cleaning block to rotate to contact with the filter screen to clean attachments on the surface of the filter screen.

The utility model discloses a chemical fertilizer production granulation cooling assembly, which belongs to the technical field of chemical fertilizer production equipment and comprises a heat absorption pipe communicated with the inside of a granulator, a filter box fixed at one end of the heat absorption pipe and used for dust filtration, and a filter plate detachably mounted in the filter box and used for dust filtration, the air guide pipe and the heat absorption branch pipe are fixed on the filter box, the air guide pipe and the heat absorption branch pipe are oppositely distributed on the filter box, and the blowing and sucking dual-purpose pump is fixed at one end of the air guide pipe and is used for extracting heat in the granulator. The cleaning roller, the blocking plate, the dust discharging pipe, the electromagnetic valve and other structures are used in cooperation, the operation state of the blowing and sucking dual-purpose pump and the heat evacuation path in the granulator are switched, on the premise that operation and cooling of the granulator are not affected, the effect of cleaning the blocking face of the filter plate through back flushing is achieved, two purposes are achieved, and the production efficiency is improved. The period of dismounting, cleaning or replacing the filter plate is prolonged, and manpower and material resource cost for cleaning is saved.

The utility model discloses a percolate diversion and confluence structure which comprises a diversion pipe, a U-shaped pipe and a collecting pipe which are sequentially communicated, the diversion pipe is used for guiding percolate flowing out of a garbage hopper into the collecting pipe, the U-shaped pipe is used for isolating air between the diversion pipe and the collecting pipe, and the collecting pipe is used for collecting the percolate into a percolate pool. According to the structure, a water seal structure can be built through the U-shaped pipe between the percolate flow guide pipe and the collecting pipe, the water seal structure is used for isolating the space below the pusher from the collecting pipe so as to isolate combustible gas from flames, explosion is avoided, water used for water seal comes from the percolate, additional adding is not needed, discharging of the percolate is not affected, and the structure is simple and convenient. On the basis of a U-shaped pipe communication principle, static pressure is formed by utilizing a water column existing in a U-shaped pipe, the static pressure and negative pressure in the garbage combustion furnace are mutually counteracted to achieve force balance, and then when leachate flows down from the upper part, the balance is broken to achieve the purpose of drainage. The design is ingenious, the structure is simple, and parts are convenient to machine, install and use.

The utility model relates to the technical field of drainage collectors, and discloses a drainage collector capable of cleaning the interior, a floating ball switch is additionally arranged on one side of a trap, water is drained from a water supply pipeline through a water guide pipe, an electromagnetic valve is arranged in the middle of the water guide pipe, and when the water level in the trap is detected to be too low, the electromagnetic valve is opened, and the water level in the trap is closed. When the anti-blocking floor drain is blocked, the electromagnetic valve is opened, water is supplemented into the trap pipe through the water guide pipe, the situation of odor returning caused by the low water level can be avoided, the anti-blocking floor drain is installed in a floating mode through the spring, the contact switch is arranged on the lower portion of the anti-blocking floor drain, and when the anti-blocking floor drain is blocked, the contact switch is switched on. When the anti-blocking floor drain is used, the pressure of the anti-blocking floor drain is increased due to water accumulation, the thrust of the spring is overcome to press the contact switch, water is conveyed to the flushing cylinder seat through the water guide pipe, and automatic flushing and cleaning of the anti-blocking floor drain can be realized without manual operation; leakage holes in the peripheral side and the lower portion of the anti-blocking floor drain can be effectively washed and cleaned through the washing spray holes.

The invention belongs to the technical field of preparation of compounds, and particularly relates to a device and a process method for producing potassium chloride through two-stage negative pressure evaporation by utilizing an MVR (mechanical vapor recompression) technology. The device comprises an evaporation system, a compression heating system, a negative pressure system and an air supply system, the evaporation system comprises at least two sets of evaporation devices forming continuous production, and each evaporation device comprises an evaporation tank, a heating chamber, a circulating pump and a condensate water tank; the compression heating system comprises a scrubber tower, an evaporation compressor and a steam superheat degree eliminating device; the negative pressure system comprises a water ring vacuum pump, an evaporation compressor and a vacuum cooler; and the air supply system supplies live steam to each section of evaporation device. The method comprises the following steps: blending raw material brine; a first-stage evaporation process and a second-stage evaporation process; a compressor heating procedure; a negative pressure process; and supplementing air. According to the invention, the heat pump technology is utilized to optimize and improve the existing process for producing potassium chloride from bittern, electricity is utilized to replace steam, the production cost can be reduced, and the deficit and even twisting of the process for producing potassium chloride from bittern are realized.

The utility model discloses a kind of anti-clogging filter membrane assemblies, it is related to water filtration technical field, including cylindrical filter membrane and cylindrical hard filter cartridge;The hard filter cartridge is located in filter membrane inside;Hard filter cartridge lower side and upper side are equipped with water inlet pipe and pollution collection box respectively, water inlet pipe is rotatably installed with the impeller rotating with water flow, hard filter cartridge inside is equipped with bracket, and bracket edge is equipped with the brush that is attached with hard filter cartridge inner wall;The impeller is connected with bracket through pivot;The utility model drives impeller rotation by water flow, impeller drives bracket and brush to clean the foreign matter of hard filter cartridge inside, can avoid foreign matter to be stuck on hard filter cartridge;Pollution collection box is set in hard filter cartridge lower side, can accommodate the foreign matter cleaned in large quantity, prolongs the cleaning cycle of hard filter cartridge.