14770 results about "Screen filter" patented technology

The invention relates to the field of household appliances, and discloses an air purifier efficient filter screen replacement prompting method and system.The method comprises the steps that firstly, air adsorption data are obtained, and the concentration of pollution particles is recognized to determine a filter screen load mode; analyzing the use state of the filter screen, and performing attenuation detection in combination with historical replacement records to obtain attenuation data; calculating the service residual life according to the attenuation data, evaluating a purification index, generating a filter screen efficiency index in combination with the environment air quality, and dividing replacement levels; then configuring multi-order prompt information according to levels, determining a filter screen edge area, calculating a penetration rate and positioning a weak part; and finally, generating a local failure graph, extracting failure interference factors, constructing adaptive replacement logic and formulating a replacement prompt scheme. The filter screen utilization rate can be increased, and the purification efficiency can be guaranteed.

The invention relates to a negative pressure dust collection type cutting machine, and belongs to the technical field of cutting machines, the negative pressure dust collection type cutting machine comprises a cutting machine workbench, a cutting module, a negative pressure dust collection module, an explosion-proof filtering system and a control system, the cutting module comprises a three-dimensional five-axis cutting mechanism and a high-power laser cutting head, and the high-power laser cutting head is loaded at the driving end of the three-dimensional five-axis cutting mechanism. The dust collector has an anti-explosion effect and an environment-friendly discharge function, and is provided with an anti-static pipeline, an inert gas injection device and a spark catcher aiming at flammable metal dust, so that the explosion risk can be remarkably reduced, multi-stage filtration is carried out by adopting the sintered metal filter cartridge, the HEPA filter screen and the like, discharged air meets the environment-friendly standard, the sewage problem of traditional wet dust collection is avoided, and the dust collector is suitable for popularization and application. And the metal plate is fixed through the evenly-distributed adsorption holes, plate deviation caused by vibration or scrap accumulation in the cutting process is prevented, and the precision of the cutting path is improved.

The invention discloses a corrosion-resistant radial plunger pump with a self-cleaning function, and relates to the technical field of radial plunger pumps, the corrosion-resistant radial plunger pump comprises a shell of a hollow structure, a vertically-arranged partition plate is fixed to the center of the interior of the shell in the length direction of the partition plate, and the length direction of the partition plate is perpendicular to the length direction of the shell; the partition plate divides the interior of the shell into two cavities, and the drainage plate is rotationally connected to one end, in the length direction of the partition plate, of the partition plate; according to the device, through cooperation of the drainage mechanism, the driving mechanism, the filter screens and other components, when the filter screen on one side is blocked, the filter screens generate displacement under the action of negative pressure suction, then the drainage plate is driven to turn, switching of the flowing direction of liquid flow is achieved, the blocked filter screen can be cleaned, the conveying work cannot be stopped, manual intervention is not needed in the process, and the working efficiency is improved. And shutdown operation is not needed, so that the production interruption time caused by blockage of the filter screen is shortened, the production efficiency is improved, and the maintenance frequency is reduced.

The invention relates to the technical field of urea production, in particular to a urea production device. Comprising a mixing tank, a feeding hopper, a stirring device, a liquid inlet pipe and a liquid discharging pipe, an inner cylinder is arranged in the mixing tank and divides the mixing tank into an inner mixing bin for storing premixed liquid and an outer mixing bin for storing raw materials to be mixed from inside to outside, a filter screen plate is arranged above the inner cylinder, and small-particle raw materials are evenly dispersed in the inner mixing bin through the filter screen plate; and the large-particle raw materials are guided into the external mixing bin. In the liquid separation stage, water waves generated by vortex rotation are used for driving the floating plate to drive the drainage plate to float up and down in the premixed liquid, so that vortex outer ring solutions with different depths are guided to the axis, and the mixing degree of the solutions in the horizontal direction is enhanced; the floating plate is used for raising the vortex outer ring solution in an inclined manner, so that gravitational potential energy is used for impacting the rear part of the drainage plate, the local concentration difference is further broken, and the solution is promoted to reach a more uniform mixing state.

The utility model discloses a slag collecting and filtering system and a dish washing machine. The slag collecting and filtering system comprises a filtering cavity which is provided with a first inlet and a first outlet and is provided with a first filter screen used for filtering washing water flowing from the first inlet to the first outlet; the residue collecting cavity is provided with a second inlet and a second outlet, the second inlet is communicated with the filter cavity, the residue collecting cavity is provided with a second filter screen and is used for filtering washing flowing from the second inlet to the second outlet, and the driving structure is in transmission connection with the first filter screen and the second filter screen. The first filter screen and the second filter screen are driven to rotate. According to the slag collecting and filtering system disclosed by the embodiment of the utility model, the washing water can be filtered through the filtering cavity, and the slag collecting cavity is used for collecting the slag, so that the filtering effect of the slag collecting and filtering system is improved, and the slag is convenient to discharge.

The present invention belongs to the technical field of oil extraction and provides a sand fracturing wellhead device, comprising a main pipe, a branch pipe connected to the side of the main pipe, a mounting ring slidably installed in the branch pipe, and a second telescopic member fixedly installed in the branch pipe to drive the mounting ring to move, the mounting ring and the branch pipe are coaxially arranged and the outer side of the mounting ring is in sliding contact with the inside of the branch pipe, a first filter is fixedly installed in the mounting ring, and a temporary storage box is provided on the branch pipe, the temporary storage box is located on the outside of the branch pipe and a storage box and a connecting groove are fixedly installed at both ends of the temporary storage box, and the connecting groove is connected to the branch pipe. Compared with the prior art, the beneficial effects of the present invention are as follows: impurities on the first filter screen will fall off the first filter screen due to speed reasons, and at the same time, the oil flowing into the connecting groove will drive the impurities that have fallen off the first filter screen into the temporary storage box, thereby achieving the cleaning of impurities on the first filter screen, and the cleaning of the first filter screen can be achieved without stopping the transportation of oil.

The invention discloses sewage treatment filtering equipment, relates to the technical field of sewage treatment, and solves the technical problems that a filter screen is easy to block and a sewage collection box is insufficient in sewage discharge capacity. The sewage treatment filtering equipment comprises a case, a roller is arranged in the case, the filter screen is arranged outside the roller, a rotating rod is rotationally mounted on the case, and a half gear fixedly sleeves the tail end of the rotating rod; a mounting frame corresponding to the half gear is fixedly mounted on the inner wall of the case, a rack capable of being meshed with the half gear is slidably mounted on the mounting frame, a sliding rod slidably mounted on the mounting frame is fixedly mounted at one end of the rack, an impact ring is integrally fixed to the tail end of the sliding rod, and a spring movably arranged on the sliding rod in a sleeving mode is arranged between the impact ring and the mounting frame. By adding the driving synchronizing wheel, the half gear, the impact ring and other structures, the transmission assembly is synchronously driven to operate when the roller rotates, the half gear is meshed with the rack to drive the spring to accumulate force, the spring pushes the impact ring to impact the filter screen when the half gear is not meshed with the rack, and the vibration cleaning efficiency of the filter screen is remarkably improved.

The invention relates to the technical field of dechlorination devices, and provides a high-chlorine coal washing dechlorination leaching device which comprises a dechlorination tank body provided with a washing dechlorination area, and a circulation opening is formed in the bottom of the washing dechlorination area; the conveying part is circularly arranged on the dechlorination tank body, the plurality of push plates are arranged on the conveying part, and the push plates are configured to move along the bottom of the washing dechlorination area under the driving of the conveying part; the screen piece is arranged on the circulation opening; the first spray pipe is arranged on the dechlorination tank body and located below the screen piece, the first spray pipe is provided with a first nozzle, and the first nozzle faces the screen piece. According to the technical scheme, the problems that in the prior art, the dechlorination effect needs to be improved when a traditional kettle body is subjected to water washing dechlorination, and a filter screen part in the kettle body is prone to being blocked are solved.

The invention relates to the technical field of electric control cabinets, and discloses an efficient heat dissipation frequency converter electric control cabinet which comprises a bottom plate and a heat insulation plate. In the efficient heat dissipation frequency converter electric control cabinet, a lower low-temperature area accelerates the flow speed of airflow in an air inlet pipe through rotation of a first fan, efficient heat dissipation is achieved, and a second fan in a high-temperature area and the first fan on the top supply air upwards; the natural convection characteristic of hot air rising is used for accelerating hot air discharging, air cooling is started at the low temperature, cooling plate water cooling is automatically switched at the high temperature, and the energy-saving performance and the powerful cooling requirement are both considered. When a differential pressure sensor on the filter screen monitors abnormity, a threaded rod can be driven to rotate, a brush plate moves up and down to automatically clean the filter screen, a second fan rotates reversely to blow dust and impurities away from the filter screen, a mounting frame is pushed inwards, a clamping block in a sleeve and a first circular truncated cone are unlocked, and a spring arranged on the sleeve in a sleeving mode can push the mounting frame and a mounting plate to automatically slide. When the mounting frame is pushed inwards again, the clamping block in the sleeve is automatically locked with the circular truncated cone I, so that the maintenance operation of the electric control cabinet is more convenient.

The utility model discloses a residue collecting and filtering device and a dish-washing machine, the residue collecting and filtering device comprises a water collecting cavity, a residue collecting cavity and a residue collecting cavity, the water collecting cavity is used for collecting washing water; the filter cavity is provided with a first inlet and a first outlet, the first inlet is communicated with the water collecting cavity, the filter cavity is used for separating residues and water in the washing water, and the filter cavity is provided with a first filter screen; the residue collecting cavity is provided with a second inlet, a second outlet and a residue discharging opening, the second inlet is communicated with the filtering cavity, the filtering cavity is used for collecting residues separated by the filtering cavity, and the residue collecting cavity is provided with a second filter screen; the circulating pump is communicated with the first outlet and the second outlet; and the draining pump is communicated with the slag discharging opening. According to the slag collecting and filtering device disclosed by the embodiment of the utility model, the washing water can be filtered through the filtering cavity, and the slag collecting cavity is used for collecting the slag, so that the filtering effect of the slag collecting and filtering device is improved, and the slag is convenient to discharge.

The utility model discloses a cleaning device for stainless steel tableware production, which relates to the technical field of stainless steel tableware production and comprises a shell, a central controller is fixedly connected to the right side of the front side of the shell, a top frame is fixedly connected to the left side of the top of a fixing frame, and all-directional washing components are arranged in the shell and the fixing frame. A drying assembly is arranged in the top frame, and a filter screen cleaning assembly is arranged at the top of the filter screen. According to the stainless steel tableware washing device, the side faces, the top and the bottom of tableware can be washed in a water spraying mode from multiple angles through the arranged all-dimensional washing assembly, the problem that part of stains are left due to washing in a single direction is solved, and meanwhile the efficiency of the cleaning link in the whole stainless steel tableware production process is improved; and residues accumulated on the surface of the filter screen can be scraped off in time, meshes of the filter screen are kept unobstructed, tableware can be dried in time through the arranged drying assembly, and breeding of microorganisms such as bacteria is effectively inhibited.

The utility model relates to the technical field of water supply pipelines, in particular to a water supply pipeline with an anti-blocking structure. Comprising a water supply pipeline, at least two anti-blocking assemblies are arranged on the water supply pipeline at intervals in the water flow direction, and multiple sets of flow guide fins are arranged on the inner wall, corresponding to the upstream end of each anti-blocking assembly, of the water supply pipeline at equal intervals; the anti-blocking assembly comprises an expanding settling cavity integrally arranged with the water supply pipeline, a fixing rod is arranged in the middle of a cavity body of the expanding settling cavity in the radial direction, a hinge shaft in the middle of the fixing rod is connected with two crossed connecting rods, and the upstream ends of the two connecting rods are connected to the inner wall of an expanding section of the expanding settling cavity through springs correspondingly. The downstream ends of the two connecting rods are jointly connected with the edge of the nickel-titanium filter screen, the nickel-titanium filter screen triggers pore diameter adjustment based on water flow pressure difference changes, the pore diameter of the nickel-titanium filter screen can stretch out and draw back in a self-adaptive mode between 50 micrometers and 500 micrometers, and the self-adaptive pipeline anti-blocking function is achieved.

The invention belongs to the technical field of sand mill equipment, and provides a sand mill filter screen cleaning system which comprises a sand mill body, a detection module, a cleaning module and a control module. The sand mill body comprises a feeding hole, a discharging pipeline, a stirring main shaft, a sleeve, a rotatable frame and a metal filter cartridge; the detection module comprises an X-ray emitter, an X-ray receiver and an image transmission assembly and is used for performing 360-degree full-coverage scanning detection on the surface of the metal filter cartridge and generating and transmitting a detection image to the control module; the cleaning module comprises a laser transmitter and a sliding groove type moving device. The control module comprises a PLC and a central control processor and is used for receiving the detection image, judging the cleaning requirement, controlling the cleaning module to clean the surface of the metal filter cartridge and starting secondary detection after cleaning is completed. According to the sand mill filter screen cleaning device, automation and intelligence of sand mill filter screen cleaning are achieved.

The invention relates to the technical field of temperature-rise-resistant electric energy metering box testing, in particular to a temperature-rise-resistant electric energy metering box and temperature rise testing equipment thereof, and the temperature-rise-resistant electric energy metering box comprises a box body, a heat dissipation module, a first sensing module and an automatic control module. Through real-time data feedback of the first temperature sensor and the first humidity sensor, the automatic control module can automatically trigger heat dissipation mode switching, and in a high-humidity environment, the first electric push rod drives the inverted-U-shaped cover plate to seal an outer air inlet and an outer heat dissipation opening to form a closed space; through cooperation with an inner circulation path of an air inducing flow channel, an inner air inducing opening, an air compression cooling unit, an air inducing barrel and an inner air outlet, external humid air can be isolated, the wiring terminal is prevented from being oxidized and corroded, and efficient cooling can be achieved through air compression cooling; in a low-humidity and high-temperature environment, the cover plate moves upwards to start external circulation, external air enters the box after dust is filtered out through the filter screen, and heat is taken away through rapid airflow circulation of the outer air inlet, the induced air flow channel and the outer heat dissipation opening.

The invention discloses a positive pressure air supply device for a clean room, and relates to the technical field of clean room air supply. By arranging the pretreatment device, when air enters through the air inlet end of the air supply box, the air makes contact with a filter screen arranged in the middle of a connecting plate so as to achieve preliminary filtration and purification, through operation of a motor arranged in an air supply assembly, a rotating shaft can be driven by fan blades so as to increase the air inlet speed, and meanwhile the air inlet speed can be increased. The rotating shaft can further drive a connecting sleeve arranged outside in a sleeving mode to rotate synchronously and drive a scraping plate connected with the rear side to scrape and clean the filtering face of the filtering net and reduce the filtering blocking problem, meanwhile, the rotating shaft can meet linkage driving of the moving assembly, reciprocating movement of a connecting plate is achieved, the contact filtering effect of the spiral filtering net and air is improved, and meanwhile the rotating shaft can be driven by the rotating shaft to rotate synchronously. And the moving assembly can perform reciprocating spraying movement of the spraying assembly, so that entering air is subjected to reciprocating spraying sedimentation by the moving assembly, and the air pretreatment effect is enhanced.

The invention provides a roasting workshop environment-friendly solid waste pollution dust collection device and method, and relates to the technical field of solid waste pollution dust collection, the roasting workshop environment-friendly solid waste pollution dust collection device comprises a shell, the shell is internally provided with a collection mechanism, the collection mechanism comprises an outer cylinder, the outer cylinder is fixedly connected with the shell, the inner surface of the outer cylinder is fixedly connected with a protection shell, and the protection shell is fixedly connected with the shell. The lower surface of the outer cylinder is fixedly connected with an inner cylinder, the lower surface of the outer cylinder is rotatably connected with a rotating cylinder through a bearing, and the surface of the rotating cylinder is fixedly connected with a filter screen. And the electrostatic adsorption is responsible for capturing residual small particles and ensuring that exhausted gas is cleaner, and for solid waste pollution dust collection, the concentration of inhalable particles in a workshop can be greatly reduced through efficient filtration, and more comprehensive protection is provided for the indoor environment.

The invention relates to the technical field of wastewater treatment, and discloses a multi-stage wastewater treatment device for wood production, which comprises a treatment tank, and further comprises a filter cartridge I and a filter cartridge II which are cylindrically arranged in the treatment tank, and the filter cartridge II is positioned in the filter cartridge I and is used for sequentially separating impurities in wastewater; the water outlet pipe is arranged at the bottom of the filter drum II and is used for guiding out the treated wastewater; the water inlet pipe is arranged at the bottom of the treatment tank. By adopting the filter cartridge I and the filter cartridge II, continuous multi-stage filtration from rough filtration to fine filtration is realized, saw dust, fibers and other impurities with different particle sizes are removed at one time, meanwhile, online self-cleaning is synchronously carried out, and rotary filtration and filter screen cleaning are synchronously carried out through motor driving; therefore, the problem that traditional filtering equipment must be frequently shut down and manually cleaned due to quick blockage of a filter screen is solved, continuous and uninterrupted efficient operation of the wastewater treatment process is ensured, and the overall treatment efficiency and production continuity are greatly improved.

The invention provides a wet-type dust removal device for an underground coal mine and a using method thereof, and belongs to the technical field of dust removal, and the technical scheme is that the wet-type dust removal device for the underground coal mine comprises a barrel, a mounting ring is fixed to the open end of the barrel, a filter screen is arranged in the mounting ring, and a mounting block is fixed to the outer side face of the filter screen; a connecting hole is formed in the wall thickness of the side wall of the barrel, a connecting rod is installed in the connecting hole, a driving mechanism is arranged in the barrel, and the driving mechanism can control the connecting rod to periodically impact the installation block. An air draft mechanism and a spraying mechanism are further arranged in the barrel body, the air draft mechanism can suck air into the barrel body from the filter screen, the spraying mechanism can spray water mist into the barrel body, and a flocculation mechanism is arranged at the top of the barrel body and can periodically drip a flocculating agent into the barrel body. The device is based on an automatic cleaning mode of periodic vibration, and the problem that a filter screen is blocked by dust chippings during mechanical extrusion cleaning of a traditional brush plate is solved.

The utility model relates to the technical field of gas turbine power plants, in particular to a safety ventilation device for a gas turbine power plant, which comprises a blowpipe, a connecting pipe and a filter component, the connecting pipe is fixedly connected with the blowpipe, and the filter component comprises two groups of barriers, an extension plate, a fixing plate, a driving motor, a driving gear, a protective cover, a lifting part and a cleaning part. The extension plate is fixedly connected with the blowing pipe; the fixed plate is fixedly connected with the extension plate; the output end of the driving motor is fixedly connected with the driving gear; the driving gear is meshed with the barrier pieces; in this way, the filter screen can be effectively prevented from being abraded, the service life of the filter screen is prolonged, when the filter screen is cleaned through the structural arrangement, the ventilation device can work normally, and the practicability of the device is improved.

The invention provides multi-parameter air pollution real-time monitoring equipment, and relates to the technical field of air monitoring. A detection sensor is fixed on a bottom plate of the electric control box in a penetrating manner; a rectangular track frame is fixedly mounted below the electric control box; an abutting plate and a square blocking frame which are vertically arranged at an interval are formed in the rectangular track frame, a circular through hole is formed in the abutting plate in a penetrating mode, the abutting plate abuts against and makes contact with the bottom end of the detection sensor, and the circular through hole communicates with an opening in the bottom end of the detection sensor; a peripheral retaining frame is slidably mounted in the rectangular track frame, a metal filter screen is arranged in the peripheral retaining frame in a covering manner, and the metal filter screen is slidably matched with the interval space between the abutting plate and the square blocking frame in a penetrating manner and covers the bottom side opening of the circular through hole. Compared with the prior art, the method has the advantages that the tedious steps that the metal filter screen needs to be detached and taken down, and an external brushing tool is used for manually brushing and cleaning the blockage of the metal filter screen can be omitted, and the efficiency and convenience of the blockage cleaning operation of the metal filter screen can be improved.

The invention relates to the field of air dust falling equipment, in particular to an environment-friendly building construction dust falling treatment device which comprises a machine shell fixedly installed on a movable seat, the top of the machine shell is rotationally communicated with an air inlet pipe, and a driving part for driving the air inlet pipe to rotate is arranged on the machine shell; the fan is fixedly installed on the upper portion of the inner wall of the machine shell, an air outlet of the air inlet pipe is communicated with the fan, the bottom of the fan is fixedly communicated with a filter box, the fan blows air towards the filter box, and a plurality of filter screens are evenly assembled on the outer wall of the filter box in the circumferential direction at intervals. Air is doubly filtered through the filter screen and the water washing box, a linkage system of the shielding mechanism and the dust removal mechanism is matched, and under the condition that normal work of a filter channel of the filter box is not affected, clean air obtained after water washing is used for conducting back flushing cleaning on the isolated filter screen; the problem that the overall efficiency of traditional equipment is reduced due to filter screen blockage is effectively solved.

The present application relates to the technical fields of animal feed preparation, and discloses a livestock feed preparation device, in order to solve the problem of clogging when the filter screen filters for a long time, the sieve cylinder is driven to rotate by the driving shaft, in this process, the relative movement between the driving wheel and the inside of the shell is utilized to force the driving wheel to move in the opposite direction between the driving sieve roller and the driven sieve roller by the transmission gear set. Since the filter part is located between the distance between the driving sieve roller and the driven sieve roller, the feed meeting the distance can be screened out, and the large stone or the granular particles are retained in the inside of the sieve cylinder. By the continuous rotation of the driving sieve roller and the driven sieve roller, the filter material clogged between the two is driven to have a tendency to move away from the filter part, thereby preventing the filter part from accumulating, and finally realizing the effect that the filter part is not easy to be clogged.

The invention relates to the technical field of sediment sampling, and discloses a riverway water environment treatment lifting device which comprises a fixing frame, sliding rails are arranged in the top end and the bottom end of the fixing frame, sampling assemblies used for collecting sediment are arranged in the sliding rails, each sampling assembly comprises a bottom supporting column, the bottom supporting columns are slidably connected with the sliding rails, and the bottom supporting columns are connected with the sliding rails. The river channel water environment treatment lifting device comprises a bottom supporting column, a supporting rod is fixed to the top of the bottom supporting column, a sampling barrel is fixed to the top of the supporting rod, and connecting blocks are fixed to the surfaces of the two sides of the sampling barrel. Water flow is limited through the appearance of the conical pipe, so that the water body shunted by the filter screen is converged again, and a certain flow speed is maintained to carry silt into the sampling barrel, so that the silt sampling accuracy is improved, and the water environment treatment efficiency is effectively improved.

The utility model discloses a semi-automatic backwashing laminated filter. The external structure of the semi-automatic backwashing laminated filter comprises a handle, a filter base body, a water inlet, a water outlet, a laminated shell, a blow-down valve, a blockage indicator, a filter screen flushing valve and the like, the internal structure comprises a flow direction selector, a butterfly check valve, a laminated filter element, a rotational flow centrifugal disc, a laminated compression inner cover, a laminated compression outer cover, a spring between the laminated compression inner cover and the laminated compression outer cover and the like. The channel position of the flow direction selector is switched by rotating the handle, so that the switching between the filtering mode and the backwashing mode is realized. In a filtering mode, muddy water flows into a raw water cavity outside the lamination after being accelerated by the rotational flow centrifugal disc, impurities are intercepted, and clear water flows into a downstream pipeline; and in a backwashing mode, the water flow is sprayed out from the spraying holes in the filter element frame by pressing the position of the lamination for compressing the inner cover and loosening the lamination, so that impurities are eluted from the lamination and discharged through the blow-down valve. In addition, a filter screen is arranged on the flow direction selector to intercept impurities of flushing water, and the filter screen can be flushed in a filtering mode. The utility model has the advantages of convenient use and simple structure.

The invention relates to the technical field of pipeline filters, in particular to a self-cleaning filter and a check valve, the self-cleaning filter comprises a pipe body and an annular filter screen, a bottom plate is coaxially fixed at one end of the annular filter screen, a water guide column is arranged on one side of the bottom plate, one end of the annular filter screen is fixedly connected with the inner wall of the pipe body through a fixing ring, and a central column is coaxially arranged at the water inlet end of the pipe body; a spiral flow channel is arranged between the central column and the inner wall of the pipe body, a slag discharging opening and a slag discharging pipe are arranged on the bottom plate, one end of the slag discharging pipe is communicated with the slag discharging opening, the other end of the slag discharging pipe penetrates through the pipe body and then is located outside the pipe body, and a cleaning mechanism is further arranged in the pipe body. Through cooperation of the spiral flow channel, the water guide column, the annular filter screen and the cleaning mechanism, the automatic cleaning of the annular filter screen is synchronously realized in the fluid filtering process, so that the filtering effect of the annular filter screen is ensured.

The invention belongs to the technical field of oil exploitation, and provides a sand-prevention fracturing wellhead device which comprises a main pipe, the side face of the main pipe communicates with a branch pipe, a mounting ring is slidably mounted in the branch pipe, and a second telescopic part for driving the mounting ring to move is fixedly mounted in the branch pipe. The installation ring and the branch pipe are coaxially arranged, the outer side face of the installation ring is in sliding contact with the interior of the branch pipe, a first filter screen is fixedly installed in the installation ring, a temporary storage box is arranged on the branch pipe and located on the outer side of the branch pipe, a storage box and a communicating groove are fixedly installed at the two ends of the temporary storage box respectively, and the communicating groove communicates with the branch pipe. Compared with the prior art, the device has the following beneficial effects that impurities on the first filter screen can be separated from the first filter screen due to the speed, meanwhile, petroleum flowing into the communicating groove can drive the impurities separated from the first filter screen to enter the temporary storage box, and cleaning of the impurities on the first filter screen is achieved; and the first filter screen can be cleaned without stopping petroleum conveying.

The invention belongs to the technical field of optical measurement, and particularly relates to intelligent laser scanning equipment for building structure surveying and mapping, which comprises a bracket, a platform is fixed at the upper end of the bracket, an annular guide rail is fixed on the outer wall of the platform, and an electric sliding block is sleeved on the annular guide rail; the lower side wall of the electric sliding block is connected with a laser scanner through a swing assembly, a notch is formed in a shell of the laser scanner, a heat dissipation assembly is installed in the notch, and the heat dissipation assembly comprises a box body. According to the laser scanner, cleaning of the annular guide rail is achieved through rotation of the rotating rod, meanwhile, water can intermittently flow out to adsorb heat on the heat conduction pipe, the heat conduction pipe can continuously adsorb heat in the laser scanner, rapid cooling of the laser scanner is completed, and meanwhile the water can be automatically cooled after flowing along the first slope; after the water body is gathered, the rotation of the scraper blade can be completed to complete the automatic cleaning of the filter screen I, so that the air flow can smoothly enter the air inlet pipe to cool the heat conduction pipe.

The utility model discloses a cutting device for precise semiconductor equipment part machining, which comprises a machining table, a cutting cooling device is mounted on the machining table, and a part limiting device is fixedly mounted on the end face of the machining table. The cutting cooling device is installed, the liquid storage tank of the cutting liquid is arranged below the machining table, the cutting liquid can be sprayed out from the spray head through the liquid pump, cooling is carried out when a part is cut, thermal deformation and abrasion of a cutter can be reduced, the machining quality is improved, the service life of the cutter is prolonged, and the machining efficiency is improved. In addition, the used cutting fluid can flow into the fluid storage tank again through a filter plate, a filter screen is arranged in the fluid storage tank, chippings doped in the cutting fluid can be filtered, a part limiting device is installed, the position of each moving block can be adjusted according to the size of a part, the part is pressed through a pressing plate to be limited, and therefore the cutting fluid can be conveniently and rapidly cut. And the nuts arranged up and down are used for fastening, so that the stability of part limiting is improved.

The utility model relates to an ion decomposition deodorization device, which comprises a shell (10), an ion decomposition device (20) and an ion decomposition device (30), the shell (10) defines a shell cavity (1), and the shell (10) extends around a horizontal central axis (109); a hollow shaft (2) arranged parallel to the horizontal central axis (109) and supported by the housing (10); the filter screen fixing piece (4) is arranged on the lower part of the shell (10); a filter screen (3) fixed to the lower portion of the housing (10) by a filter screen fixing member (4); an ion generation unit (7); the fan (8) is arranged at the upstream of the ion generation unit (7); and the electrolysis power supply comprises a positive electrode (6) electrically connected with the hollow shaft (2) and a negative electrode (5) electrically connected with the filter screen fixing piece (4).