2365results about How to "Guaranteed filtering effect" patented technology

The invention relates to the technical field of spectrum analysis, in particular to an intelligent protein quality detection method and system based on spectrum analysis, and the method comprises the following steps: collecting infrared spectrum data of a preset number of protein samples; determining a local fluctuation coefficient of the transmittance of each wavelength; determining a fluctuation coefficient of the infrared spectrum data of each protein sample; screening the infrared spectrum data of all the protein samples based on the fluctuation coefficient to obtain fluctuation data of each suspected impurity; equally dividing each piece of suspected impurity fluctuation data into each fragment; determining an abnormal index of the suspected impurity fluctuation data in each segment; correcting a spatial domain weight and a value domain weight of each filtering window in a bilateral filtering algorithm based on the abnormal index, and denoising infrared spectrum data of the protein sample; and determining a difference coefficient of the infrared spectrum data of each protein sample, and detecting the protein quality. Therefore, the accuracy of protein quality detection is improved.

The invention belongs to the technical field of environmental sanitation machinery, and particularly relates to a high-speed low-noise centrifugal fan with an air filtering effect, the high-speed low-noise centrifugal fan comprises a fan volute, a fan impeller is mounted in the fan volute, the fan impeller comprises a front disc, a middle disc and a plurality of fan blades, the fan blades are located between the front disc and the middle disc, and the fan blades are arranged in the fan volute. A flow channel of the fan impeller is formed by the front disc, the middle disc and the space between every two adjacent fan blades, and a driving motor is installed on the rear side of the fan volute. According to the high-speed low-noise centrifugal fan with the air filtering effect, brand new plans are made on the blade shape, the blade structure, the volute, the volute tongue and the overall structure of the fan, and particularly, the cyclone separator is additionally arranged at the air inlet of the fan, so that high-speed air entering the volute of the fan is rapidly separated and purified; and dust and other garbage in the gas are settled and separated, so that the quality of air discharged into the atmosphere from an outlet of the fan is improved, and secondary pollution of environmental sanitation operation is reduced.

The invention relates to the technical field of sewage treatment devices, in particular to a sewage multi-stage separation treatment device and method.The sewage multi-stage separation treatment device comprises a settling tank, a glass observation window used for observing the interior of the settling tank is inlaid in the side wall of the settling tank, and a water outlet is formed in the bottom of the settling tank; an electromagnetic valve is arranged in the water outlet, a filter box is fixedly connected to the top of the sediment box, two filter screens for filtering sewage are fixedly connected to the interior of the filter box, a water inlet is fixedly connected to one side of the filter box, one end of the water inlet inclines towards the filter screens, and the other end of the water inlet inclines towards the filter screens; and a cleaning mechanism for cleaning the filter screen is arranged in the filter box. Compared with the prior art, the device has the advantages that impurities filtered on the filter screen can be continuously cleaned, scraped and collected in the filtering process, meanwhile, the filter screen does not need to be detached and cleaned, and rapid precipitation of the impurities in sewage in the precipitation tank can be effectively promoted by quantitatively adding a flocculating agent, so that the precipitation efficiency is improved.

The invention relates to the technical field of wastewater recovery equipment, and discloses wastewater recovery equipment for environmental protection, which comprises a shell, a top cover is mounted on the inner wall of the top of the shell, a protective shell is mounted at the top of the top cover, a water inlet pipe is fixedly connected to the top of the top cover, and a nutrition box is mounted at the rear part of the shell. When wastewater enters the equipment, the motor drives the transmission rod and the baffle I to rotate, and the fixed column can filter impurities in the wastewater for the first time, so that the impurities are adsorbed on the surface of the baffle I and limited by the fixed column; and meanwhile, a transmission wheel I in the cleaning device is in friction rotation with a shell to drive a rotating rod and a blade to rotate, so that overlarge impurities in water can be crushed, the influence of overlarge impurities on the dredging property of a filter plate I is avoided, the blockage of the filter plate I is prevented, and smooth drainage is ensured.

The invention relates to the field of wastewater treatment, in particular to a wastewater treatment method based on air flotation separation, which comprises a barrel, an inlet and outlet unit, a driving motor, a rotating rod, a multi-stage electric push rod, a partition plate and the like, the cylinder body is connected with an inlet and outlet unit for feeding and discharging water; the barrel is rotationally connected with a rotating rod, and an output shaft of the driving motor is fixedly connected with the rotating rod; a plurality of multi-stage electric push rods are fixedly connected to the bottom of the barrel; the telescopic parts of all the multi-stage electric push rods are fixedly connected with a partition plate jointly, and the partition plate is in sliding connection with the inner wall of the barrel. Wastewater penetrates through the filter screen from bottom to top, large deposited impurities in the wastewater are filtered, and the filtered large impurities can precipitate downwards under the action of self gravity and cannot be accumulated and attached to the surface of the filter screen, so that the content of the impurities attached to the surface of the filter screen is effectively reduced.

The invention discloses a purification treatment device and method for cleaning wastewater after pickling of a hot-rolled titanium plate. The purification treatment device comprises a sedimentation tank, a pipeline, a neutralization mechanism and a filtering mechanism, a water inlet pipe and a second drainage pipe are arranged on the filtering mechanism, the water inlet pipe is used for wastewater transmission and drainage, the second drainage pipe is connected with the neutralization mechanism, and the pipeline is arranged between and connected with the neutralization mechanism and the sedimentation tank. According to the filtering mechanism, the filtering plates can be alternately used and replaced in time, normal operation of the filtering process is guaranteed, and then normal operation of the follow-up treatment process is guaranteed; meanwhile, a roller and a neutralizing tank are arranged in the neutralizing mechanism, a neutralizing agent in the roller is firstly mixed, and then neutralized wastewater in the roller is stirred and neutralized with wastewater in the neutralizing tank by taking neutralized wastewater in the roller as a source of the neutralizing agent; a conventional mixing mode that a neutralizing agent is added from the top of the tank and stirred in a point breaking mode is changed into a mode that neutralizing wastewater in the roller in the neutralizing tank and wastewater outside the roller are stirred and mixed in a face breaking mode, and the mixing and stirring efficiency is greatly improved.

The invention discloses a sewage treatment pipeline, and relates to the technical field of pipelines. The sewage treatment pipeline comprises pipeline bodies, and the pipeline bodies are fixed through a connecting mechanism; the connecting mechanism comprises a base, the top of the base is fixedly connected with two symmetrically-arranged first clamping hoops, and the side wall of each first clamping hoop is rotationally connected with a second clamping hoop through a rotating assembly. According to the sewage treatment pipeline, when the pipeline body is connected, more convenience and rapidness are achieved, meanwhile, automatic blowing cleaning can be conducted on the end face and the side wall of the connecting part, the sealing effect is guaranteed, when the sewage treatment pipeline is used, impurities can be intercepted on the surface of the filter screen and in the working pipe, blockage of the pipeline body can be avoided, and meanwhile, the pipeline body is prevented from being blocked. According to the pipeline, intercepted impurities can be absorbed, in addition, the surface of the filter screen can be subjected to absorption, scraping and vibration cleaning, the cleaning efficiency and effect are guaranteed, and then the using effect and the service life of the pipeline body are guaranteed.

The invention discloses an automatic filter screen replacing device for a film blowing machine, and belongs to the technical field of film blowing machines, the automatic filter screen replacing device comprises a base, an extruder is arranged on one side of the top of the base, the output end of the extruder is communicated with a connecting pipe, the other end of the connecting pipe is communicated with a fixing box, and a preheating assembly is arranged on one side of the exterior of the fixing box; a blocking frame, a filter screen and a press-fit assembly are arranged in the fixing box, and a discharging assembly is arranged on the bottom side of the outer portion of the fixing box. According to the device, through the multi-station design, automatic replacement and automatic discharging of a filter screen can be achieved, the influence of external factors on a conveying pipeline of the device is reduced in the replacement process so that the machining quality of products can be guaranteed, meanwhile, the inner wall of a sealing disc is further cleaned in the discharging process, and the sealing disc is prevented from being damaged. And impurities are prevented from adhering to the interior of the sealing disc and enter one side of the blocking frame in the feeding process of the filter screen, so that the influence on the production quality of products is prevented, and the replacement effect of the device is further improved.

The invention relates to the technical field of breathing machines, in particular to a filtering device for a breathing machine, which comprises a circular shell, a fan-shaped groove is formed in the side surface of the circular shell, a rotating block is rotatably connected in the circular shell, two placing holes are formed in the rotating block along the circumferential direction, annular filter elements are arranged in the placing holes, and the annular filter elements are arranged in the annular filter elements. The top of the circular shell fixedly communicates with an air inlet pipe, and the side, away from the fan-shaped groove, of the circular shell fixedly communicates with an exhaust pipe. According to the breathing machine, communication between the air inlet pipe and the exhaust pipe and the containing shell is removed under the action of the filtering conversion mechanism, and the air inlet pipe and the exhaust pipe are communicated with the replaced annular filter element again for filtering, so that the filter element of the breathing machine is replaced in the working state, normal filtering is guaranteed in the replacement process, and the service life of the breathing machine is prolonged. The influence of filter element replacement on the work of the breathing machine is reduced.

The invention relates to the technical field of sewage filtering, and discloses sewage filtering equipment for water resource treatment, which comprises a barrel body, and further comprises an upper turntable, a lower turntable, a water inlet pipe and a water outlet pipe, a circular groove matched with the lower rotating disc is formed in the bottom of the barrel body, and the lower rotating disc is rotationally installed in the circular groove; the filtering assembly is used for filtering impurities in the sewage; the cleaning assembly is used for cleaning the filtering assembly. According to the sewage treatment device, the first net cylinder and the second net cylinder are staggered to form a smaller diameter, a better filtering effect on sewage is conveniently formed, and when filtering holes formed by the first net cylinder and the second net cylinder are blocked, the second net cylinder is moved, so that the diameters of the filtering holes formed by the first net cylinder and the second net cylinder are increased, and the filtering effect is improved. And the first net barrel and the second net barrel can be cleaned conveniently, and the using effect of the equipment is improved.

The invention discloses multistage potato starch sewage treatment equipment, and relates to the technical field of sewage treatment.The multistage potato starch sewage treatment equipment comprises a treatment pond and a solid waste isolation mechanism, the solid waste isolation mechanism comprises two isolation ponds and a lifting frame, and the two isolation ponds are both arranged at the left end of the interior of the treatment pond; the two lifting frames are movably arranged in the two isolation pools respectively, the solid waste discharging mechanism comprises two movable boxes and a reciprocating box, and the two movable boxes are movably arranged at the front ends and the rear ends of the top ends of the right sides of the two isolation pools respectively. After the lifting frame is driven to ascend, the movable grating is driven to rotate by 180 degrees through movement of the reciprocating box, solid waste accumulated on the movable grating can be conveniently discharged out of the isolation pool, the equipment can continuously block the solid waste in potato starch sewage, obstructions are automatically discharged, the manual workload is relieved, and the working efficiency is improved. The pretreatment efficiency of the potato starch sewage is improved.

The utility model relates to the field of environmental engineering, and discloses a waste gas treatment device with a filtering function, which comprises an absorption box, an air inlet pipe penetrates through the rear surface of the absorption box and is fixedly connected with the rear surface of the absorption box, a water outlet pipe penetrates through the left surface of the absorption box and is fixedly connected with the left surface of the absorption box, and a dust falling assembly is arranged on the front surface of the absorption box. An air conveying pipe penetrates through and is fixedly connected to the upper surface of the absorption box, a fan is arranged in the middle section of the air conveying pipe, a filter box is fixedly connected to the outer wall of the right end of the air conveying pipe, a filter assembly is arranged in the filter box and comprises an activated carbon plate, and a pull plate penetrates through and is slidably connected to the front surface of the filter box. According to the utility model, by controlling the filter assembly, the filter plate can be driven to shake back and forth, impurities accumulated at meshes are shaken off, blockage is prevented, smooth circulation of air and the filtering effect of waste gas are ensured, the stability of the device when the device filters the waste gas is ensured, and the working quality is improved.

The invention relates to the technical field of drainage structures, in particular to a drainage method for hydraulic engineering construction. The system comprises a sedimentation module and a water collection module, the sedimentation module comprises a sedimentation tank, the water collection module comprises a water collection tank, a plurality of communication mechanisms are communicated between the sedimentation tank and the water collection tank, each communication mechanism comprises two communication holes formed in the side walls of the sedimentation tank and the water collection tank at the same height, and the communication holes in the side walls of the sedimentation tank are located in the lower portion of the sedimentation tank; according to the drainage method for hydraulic engineering construction, the sedimentation tank is used for settling silt in collected water, and then the interception mechanism is used for filtering suspended impurities mixed in the water; when suspended impurities are accumulated in the intercepting plate, the intercepting plate slides up and down in the communicating pipe, so that the filtering effect can be kept while the accumulated impurities are removed; in the process that water flows through the communicating pipe, the gravitational potential energy difference of water level change can prevent silt from blocking the intercepting plate, and the intercepting plate can prevent impurities from entering the water collecting tank.

The invention discloses continuous purification equipment for sewage treatment, which comprises a cylindrical shell, a filter cartridge part and a scraper self-adjusting cleaning mechanism, the filter cartridge part is arranged at the center of a cylindrical cavity of the cylindrical shell and is used for filtering and purifying solid waste in sewage, the scraper self-adjusting cleaning mechanism is movably sleeved on the filter cartridge part, and the scraper self-adjusting cleaning mechanism is used for cleaning the solid waste in the sewage. A reciprocating sliding structure is formed in a cylinder cavity of the cylindrical shell, and the scraping device is used for scraping and cleaning solid waste accumulated on a filter cylinder piece without affecting filtering and purifying treatment and scraping and pushing the solid waste to assist in centralized collection. According to the continuous purification equipment for sewage treatment, automatic scraping and cleaning operation is achieved, the blocking phenomenon caused by solid waste filtration and accumulation is avoided, the passing rate of follow-up sewage filtration and purification is guaranteed, in addition, concentrated collection of filtered solid waste is achieved, the use requirement of automatic cleaning operation is met, and the continuous purification equipment is worthy of popularization and application. And the service life of the filter cartridge piece is ensured.

The utility model discloses a filter device of a fiber melt spinning machine, which is characterized by comprising a metal sintering net filter element, a metal wire net fixedly arranged at the top of the metal sintering net filter element and metal sand filled in the metal sintering net filter element, a fixing ring is clamped at the top of the metal sintering net filter element, and the metal sintering net filter element is fixed on the fixing ring. The fixing ring is hollow, the metal wire mesh is clamped on the fixing ring, and the bottom of the fixing ring is clamped at the top of the metal sintered mesh filter element; according to the filtering device, a triple filtering mode is adopted, before polycarbosilane enters the spinneret plate, layered filtering is formed, large-particle impurities are effectively removed, the filtering effect is ensured, the metal sand plays a role in defoaming while filtering is conducted, the problem that the spinneret plate is blocked by a polycarbosilane macromolecular structure is effectively solved, and the filtering effect is improved. The continuity of the spinning length and the quality of produced fibers can be guaranteed, and stable proceeding of subsequent procedures is facilitated.

The invention provides an anti-interference transformer with a cooling structure, and belongs to the technical field of transformers, the anti-interference transformer comprises a transformer main body, the transformer main body is connected with a reinforcing assembly, the reinforcing assembly comprises a transition box, one end of the transition box is provided with a heat dissipation cylinder, the lower end of the reinforcing assembly is provided with a backflow assembly, and the backflow assembly comprises a backflow box and a drain pipe. The transformer body is connected with a filter, the reinforcing assembly further comprises an extension cylinder, an ejector rod and a sealing baffle, and a telescopic spring is arranged in the extension cylinder; a swinging assembly and a position measuring assembly. The transformer cooling device has the beneficial effects that impurities can be removed and precipitated in the flowing cooling process of insulating oil so as to reduce damage to a transformer, the fan can be triggered to rotate along with temperature rise so as to improve the heat dissipation efficiency, meanwhile, dust can be removed so as to reduce accumulation of charges in the dust, and the service life of the transformer is prolonged. And electromagnetic interference and corona discharge are effectively reduced, so that the anti-interference effect of the transformer main body is improved.

The utility model discloses an electric backwashing filter for a hydraulic support, which relates to the technical field of backwashing filters and comprises a valve body, a valve string, a filter element and an electromagnetic pilot valve are mounted in the valve body in a matching manner, the electromagnetic pilot valve is used for controlling the action of the valve string, and a liquid injection port, a liquid discharge port and an impurity discharge port are arranged on the valve body in a matching manner. A pressure sensor is installed on the valve body in a matched mode and electrically connected with a controller of the hydraulic support. According to the electric backwashing filter for the hydraulic support, through cooperative arrangement of the support controller, the main and auxiliary electromagnetic valves, the valve string and the pressure sensor, the pressure difference of the two sides of the filter element can be monitored in the first time, backwashing filtering can be automatically carried out in time, the service life of the filter element is prolonged, and it is guaranteed that the filtering capacity of the filter element is within the normal range all the time; the actual use condition of the filter element is mastered to remind personnel to replace the filter element in time, so that the system stability is ensured, and the coal mining efficiency is improved.

The utility model provides a filtering structure and a strong brine reduction device, and belongs to the technical field of strong brine treatment. The filtering structure comprises a filtering assembly and a cleaning assembly, the filtering assembly comprises a tank body and a filtering plate, the filtering plate is arranged in the tank body, the filtering plate is conical, the cleaning assembly comprises a rotating shaft, a motor, an elastic piece, a scraping plate, a cleaning window plate and a stirring rod, the rotating shaft is rotationally arranged in the tank body, and the motor is arranged in the tank body. By arranging the tank body, the filter plate, the rotating shaft, the motor, the elastic piece, the scraper blade, the cleaning window plate and the stirring rod, the conical filter plate is beneficial to guiding filtered objects to fall to the edge, the filtering effect is guaranteed, the scraper blade is tightly attached to the filter plate through the elastic piece, the scraping and cleaning effects of the filter plate are improved, and the filtering effect is improved. After use, the cleaning window plate is opened to clean impurities of filtered substances, and the stirring rod stirs and mixes the filtered strong brine and the medicament for treatment.

The invention relates to the technical field of air purification, and discloses a workshop dust removal device for furniture production, the workshop dust removal device comprises a device main body, a telescopic mechanism and a driving mechanism, a filtering mechanism is fixedly mounted in the device main body, and the telescopic mechanism is fixedly mounted in the filtering mechanism; the driving mechanism is fixedly mounted at the top of the device main body, an air inlet is formed in one side of the device main body, a discharge port is fixedly mounted at the bottom of the device main body, an exhaust port is fixedly mounted at the top of the device main body, and a partition plate is fixedly mounted in the device main body. According to the device, after wood chips are filtered through the filtering mechanism, the wood chips are left outside the filtering mechanism, filtered air enters the upper portion of the interior of the device body and then is exhausted into the air through an exhaust port, and a metal structure outside the filtering mechanism can prevent the wood chips from being scratched while filtering the wood chips; therefore, the filtering effect can still be kept in long-time work.

The invention discloses a photomask defect identification method, and belongs to the technical field of photomask detection. The method comprises the following steps: S1, acquiring a surface defect image; s2, preprocessing the surface defect image based on the imaging characteristics of the defect; s3, performing filtering algorithm correction on the preprocessed surface defect image; s4, performing colorimetric analysis on the surface defect image corrected by the filtering algorithm to obtain a particle region; s5, on the basis of morphological characteristics of defects, segmenting the particle region to obtain defect islands; and S6, performing morphological analysis on the defective island to obtain a defect type and a defect size. The photomask defect identification method provided by the invention combines morphological and colorimetric analysis methods to automatically process the surface defect image and extract the defect island, improves the accuracy of defect identification, gets rid of the constraint of the difference of different equipment imaging systems, realizes automatic batch processing, and saves the manpower and material investment in the mass production link.

The utility model provides a chemical plant waste gas detection collecting device which comprises a gas storage tank, a hand-held rod fixedly connected to the top of the gas storage tank, foot pads fixedly connected to four corners of the bottom of the gas storage tank, a gas outlet pipe fixedly connected to the left side of the gas storage tank, a first electric control valve fixedly sleeved on the outer side of the gas outlet pipe, and a pressure monitoring mechanism arranged on the right side of the gas storage tank. The right side of the pressure monitoring mechanism is provided with an exhaust pipe, the right end of the exhaust pipe is fixedly connected with a threaded connector, the right side of the exhaust pipe is fixedly connected with a sealing ring in a sleeving mode, the threaded connector is sleeved with an internal thread connecting sleeve, the right end of the internal thread connecting sleeve is fixedly connected with a connecting hose, and the right end of the connecting hose is provided with an exhaust filtering mechanism. The pressure monitoring mechanism is arranged, so that the use requirements under different conditions can be met, the practicability is high, meanwhile, the sealing condition can be detected, a user can know the leakage at the first time when the leakage occurs, and the safety is improved.

The utility model discloses a sewage precipitation and purification device, and belongs to the technical field of precipitation and purification devices. Comprising a treatment tank, a filter screen, a water inlet pipe and a feeding pipe, a spiral conveyor is fixed to the lower end of the treatment tank, an impurity collecting hopper is fixedly installed in the treatment tank, the spiral conveyor is in through connection with the lower end of the impurity collecting hopper, the spiral conveyor comprises a driving shaft, and a scraper blade matched with the inner contour of the impurity collecting hopper is fixedly installed on the driving shaft; the driving shaft is coaxially and rotatably connected with a cleaning brush, the cleaning brush is attached to the lower surface of the filter screen, a flow guide pipe arranged above the filter screen is fixed in the treatment tank, the driving shaft is coaxially and rotatably connected with a connecting shaft, and a plurality of stirring blades which are annularly distributed are fixedly mounted on the connecting shaft; and the flow guide pipe is communicated and connected with an overflow pipe penetrating through the treatment tank, so that the technical effects of keeping the filter screen clean continuously, reducing the power consumption cost and cleaning the bottom of the treatment tank are achieved.

The invention relates to the related technical field of power plant flue gas treatment, in particular to power plant flue gas dust removal equipment which comprises a dust removal tank, an exhaust cavity and a gas inlet cavity are formed in the upper side and the lower side of an inner cavity of the dust removal tank correspondingly, and an exhaust pipe connected with the exhaust cavity and a gas inlet pipe connected with the gas inlet cavity are fixedly installed on the outer wall of the dust removal tank; a plurality of air guide holes are formed in the lower end of the exhaust cavity at equal intervals, a filter screen is arranged in the exhaust cavity, the lower end of the filter screen is attached to the upper ends of the air guide holes, an adjusting cavity is formed in the lower side of the air inlet cavity, a driving motor is fixedly installed in the adjusting cavity, and a driven gear is fixedly installed on the lower side of the rotating disc. And a driving gear engaged with the driven gear is fixedly mounted at the outer end of the driving motor through an output shaft of the driving motor. According to the flue gas dust removal equipment for the power plant, dust in the filter screen can be cleaned, blockage caused by the dust in the filter screen is avoided, and the flue gas treatment effect of the filter screen is guaranteed.

The invention discloses a multistage AAO rural domestic sewage treatment device and method, and belongs to the technical field of domestic sewage treatment, the multistage AAO rural domestic sewage treatment device comprises a filter unit and a plurality of water supply units, the filter unit is communicated with an anaerobic tank through one water supply unit, the anaerobic tank is communicated with an anoxic tank through one water supply unit, and a gas pressure regulating tank is assembled on the anoxic tank; through the arranged compression unit, when a pressing plate is moved downwards through an electric hydraulic rod to compress collected waste, a lower baffle can be driven to move downwards together, the outlet end of a filtering piece is blocked, normal filtering can be guaranteed in the compression period, meanwhile, the waste does not continue to fall off, and the practicability is high. And meanwhile, after the collecting box is full of waste, the upper baffle can move upwards by moving the pressing plate upwards to block the Y-shaped flow dividing pipe, so that in the waste pouring period, even if a person pours sewage, the sewage cannot flow into the box, and the situation that the sewage is splashed all around is avoided.

The invention discloses a trash rack grid for hydropower station sewage treatment and a trash holding method thereof.The trash rack grid comprises a trash holding outer frame, the two ends of the trash holding outer frame fixedly communicate with a water inlet and a water outlet correspondingly, and two filtering assemblies used for filtering impurities are arranged in the trash holding outer frame in parallel; the filtering assembly comprises two side plates, and the two side plates are fixedly connected to the two sides of the trash holding outer frame correspondingly. Impurities can be filtered by arranging the first grating plate and the second grating plate and collected in the collecting box, the filtering efficiency can be guaranteed, the two filtering assemblies can be switched by arranging the driving assembly, manual cleaning is not needed, the working efficiency is improved, and the practicability is high. In addition, when the filtering assembly is lifted, the first grating plate and the second grating plate can be turned up towards the two sides, then internal impurities can be helped to be discharged, and then the workload of workers can be greatly reduced.

The invention relates to the field of dry quenching processes, aims at solving the problem that the production cost of dry quenching is increased due to the fact that a large amount of nitrogen is discharged in the production process of dry quenching, and particularly relates to a dry quenching dedusting pneumatic ash conveying system which comprises a gas conveying unit, a dedusting filtering unit, a filtering cleaning unit and a nitrogen recycling unit. In the operation process of the ash conveying system, nitrogen for conveying ash is collected, so that the collected nitrogen is reused, nitrogen waste caused by direct discharge of nitrogen into air is avoided, nitrogen recycling is realized, nitrogen consumption cost is reduced, and meanwhile, the filtering performance of the tail end dust removal device is analyzed, so that the dust removal efficiency is improved. Visual monitoring of the dust removal device is achieved, automatic cleaning of the dust removal device is achieved in a pulse backflushing mode, it is guaranteed that the filtering performance of the dust conveying system is in a normal working condition, meanwhile, it is avoided that a filter screen is cleaned manually according to experience, and the timeliness of cleaning of the filter screen is improved.

The invention discloses a high-salinity wastewater treatment process and equipment, and solves the problems that impurities are not easy to self-clean and the blocking probability of a filter plate is still relatively high, the high-salinity wastewater treatment equipment comprises a treatment box, a treatment cavity is formed in the treatment box, the treatment cavity penetrates to the top end of the treatment box, a movable filter assembly is mounted in the treatment cavity, and the movable filter assembly is arranged in the treatment box. The movable filtering assembly comprises a partition plate fixedly mounted in the middle of the inner bottom wall of the treatment cavity, the partition plate divides the treatment cavity into a wastewater storage cavity and an impurity storage cavity, and a driving roller is arranged at the top of one side, away from the wastewater storage cavity, of the impurity storage cavity; according to the sewage treatment device, during working, the inclined filter belt is arranged in the treatment cavity, when wastewater is introduced into the wastewater storage cavity, the wastewater is filtered through the filter holes, the filter holes are uniformly formed in the filter belt, and the filter belt moves continuously, so that the wastewater continuously passes through the upper part of the scraping head while being continuously filtered; impurities attached to the filtering belt are scraped through the scraping head, so that the filtering effect is ensured.

The invention relates to the technical field of wastewater treatment, in particular to a thermal power plant wastewater treatment device and a method thereof.The thermal power plant wastewater treatment device comprises a squeezing unit, and a filter screen of an annular structure is arranged in the squeezing unit; the periphery of the filter screen is sleeved with an impurity removal unit of an annular structure, the impurity removal unit is internally provided with a first annular shell fixedly arranged on the periphery of the filter screen in a sleeving mode and a second annular shell arranged on the periphery of the first annular shell in a sleeving mode, the first annular shell and the second annular shell are communicated with each other, and air blown to the first annular shell is introduced into the second annular shell; the first annular shell is used for collecting water separated by the filter screen, when the filter screen is in a filtering state, air in the second annular shell stops circulating, after the filter screen completes filtering, the second annular shell blows air into the first annular shell, and the air entering the first annular shell penetrates through the filter screen and flows into the filter screen. And the workload of workers is reduced.

The invention discloses an auxiliary dust falling device for municipal construction and a using method thereof, and relates to the technical field of municipal engineering, the auxiliary dust falling device comprises an outer shell, an exhaust driving part is arranged at the top of the outer shell, and a material collecting hopper is fixedly embedded in the side wall of the outer shell; the filtering part is in a hollow cylinder shape and is rotationally installed in an inner cavity of the outer shell, an arc scraping opening is formed in the side, close to the filtering part, of the material collecting hopper, and the material collecting hopper is slidably connected with the outer wall of the filtering part through the arc scraping opening; and the sweeping mechanism is arranged on the inner wall of one side of the outer shell. The hollow cylindrical filtering piece is assembled in the shell, the filtering piece can be driven to rotate while air is exhausted by matching with the air exhaust driving piece, the area for filtering on the filtering piece can be continuously adjusted, the filtering work quality is guaranteed, meanwhile, the arc scraping opening characteristic on the material collecting hopper and the rotation of the filtering piece can be utilized, and the filtering efficiency is improved. And automatic cleaning of the outer wall of the filtering piece is achieved, so that the filtering effect is guaranteed while self-cleaning of the filtering piece is achieved.