263results about How to "Avoid affecting the filtering effect" patented technology

The invention relates to the technical field of water filtering and purifying, in particular to a water filtering and purifying treatment device. The water filtering and purifying treatment device comprises a shell, wherein two threaded blocks are symmetrically arranged on each threaded rod; the side walls of the threaded blocks are connected with first scraper plates; a cross plate is arranged between inner walls of the shell; two springs are symmetrically arranged at two sides of the outer wall of the cross plate; a second scraper plate is arranged on one end, which is far away from the cross plate, of each spring; the second scraper plates are provided with connecting ropes connected with the threaded blocks; two cross rods matched with the connecting ropes are symmetrically arranged between the inner walls of the shell. The water filtering and purifying treatment device disclosed by the invention is provided with the threaded rods, the threaded blocks and the first scraper plates,so that impurities attached to the inner wall of the shell can be removed, and filtering can be prevented from being affected by the impurities attached to the shell; through the arrangement of the springs, the connecting ropes, the threaded rods and the threaded blocks, the second scraper plates can be driven to do reciprocating motion, the impurities on the filter net can be removed, the impurities can be prevented from blocking the filter net and affecting a filter effect, and the practicability is high.

The invention belongs to the technical field of multi-stage treatment of sewage, and particularly relates to a treatment device for sewage. The device comprises a machine frame and a cleaning bucket,the cleaning bucket is provided with a water inlet pipe and a water outlet pipe, a filter plate is arranged in the cleaning bucket, a telescopic oil filter plate is arranged in the cleaning bucket, two openings for taking out the oil filter plate are symmetrically arranged in the side walls of the cleaning bucket, a water wheel is rotatably connected with the interior of the water outlet pipe, thewater wheel is coaxially connected with a cam and a ratchet wheel, the machine frame is fixedly provided with a piston cylinder, the piston cylinder is provided with a one-way gas inlet valve, the machine frame is fixedly provided with a limit plate, an air bag is placed on the limit plate, the air bag is provided with an air inlet and an air valve, the piston cylinder communicates with the air inlet of the air bag, a replacement plate is slidably connected with the machine frame, the replacement plate abuts against one end of the oil filter plate, and the replacement plate is provided with apawl that cooperates with the ratchet wheel. According to the device provided by the invention, multi-stage treatment can be performed on the sewage, mud and sand do not block the water inlet pipe inthe treatment process, and the device is mostly used for treatment of the sewage.

The invention discloses a crushing device for building construction and a using method thereof, and relates to the technical field of building construction. The problem of blockage in the crushing process is solved. The crushing device specifically comprises a box body, a shell is fixed to the top of the box body through bolts, a magnetic attraction plate is fixed to the outer wall of the oppositeside of the shell through bolts, a metal sensor is fixed to the inner wall of one side of the top of the shell through bolts, a crushing mechanism is arranged on the inner wall of the shell, four supporting legs are fixed to the outer wall of the bottom of the box body through bolts, a discharging pipe is fixed to the outer wall of one side of the bottom of the box body through threads, a fan isfixed to the outer wall of one side of the box body through bolts, a partition plate is fixed to the inner wall of one side of the box body through bolts, an extrusion mechanism is arranged on the outer wall of one side of the top of the partition plate, and a filter plate is placed on the outer wall of one side of the partition plate. According to the crushing device, an electric motor is started, so that the output end of the electric motor drives the filter plate and spines to reciprocate, and it is avoided that stones stay and accumulate on the filter plate and are crushed again at the same time.

The invention discloses a domestic sewage treatment device. The domestic sewage treatment device comprises a box body, wherein support columns are respectively arranged at the left side and right sideof the lower end of the box body; a universal wheel is arranged at the lower end of each support column; a motor box I is arranged at the right side of the upper end of the box body; a motor I is arranged in the motor box I; the lower end of the motor I is connected with a rotary shaft I; the lower end of the rotary shaft I penetrates through the top part of the box body, and a main gear is arranged at the lower end of the rotary shaft I. The domestic sewage treatment device has the advantages that in the working process, the motor I works to drive the rotary shaft I to rotate, so that the main gear drives a driven gear to rotate, a screw rod is rotated, a slide seat is slide left and right, an electric telescopic rod and a scraping plate are driven to move, and the impurities on a filterplate are cleared, so that the influence to the filtering effect due to blockage of the filter plate by the impurities is avoided; the filter plate and the fixed block are detachably connected, and acorresponding movable plate is arranged at the outer side of the box body, so that the filter plate can be conveniently cleaned and repaired, and the service life of the filter plate is prolonged; the sewage treatment effect is guaranteed, and the practicality is strong.

The invention discloses an industrial waste gas purifying device, which comprises a bottom plate, a roller device, a support device, a holding device, a humidifying device, a filtering device, an air intake device, a shaking device and an air exhaust device, wherein the roller device comprises a first support block (21) and a roller (22); the support device comprises a material receiving box (31), a first support rod (32), a first transverse rod (33), a second support rod (34), a second transverse rod (35), a third support rod (36), a third transverse rod (37), a water tank (38) and a first fixing block (39); the holding device (4) comprises a first fixing frame (41), a second fixing frame (42), a fourth support rod (43), a first connecting rod (44) and a second holding rod (45); the humidifying device (5) comprises a framework body (51) and a material discharging hopper (52). The industrial waste gas purifying device has the advantages that the air which enters the device can be effectively performed with particle suction and dust removal, and the dust can be conveniently collected.

The invention discloses an electric field coupled type radio power transmission topology structure with the high anti-offset performance. The electric field coupled type radio power transmission topology structure comprises a direct-current power supply, an electric field coupled type radio power transmission circuit, a filter circuit and a load resistor that are connected successively. The electric field coupled type radio power transmission circuit consists of a high-frequency inverter circuit, a primary side compensation circuit, a coupling structure, a secondary side compensation circuit and a high-frequency rectifier circuit that are connected in sequence. The rear end of the high-frequency rectifier circuit is connected with the filter circuit. The secondary side compensation circuitincludes an inductor Ls, a capacitor Cs, and a capacitor Cls connected in parallel with the inductor Ls and the capacitor Cs, wherein the inductor Ls and the capacitor Cs are connected in series; andthe capacitor Cs is connected in parallel with the front end of the high-frequency rectifier circuit. The filter circuit includes an inductor Lr and a capacitor Cr; the inductor Lr and the capacitorCr are connected in series and then are connected in parallel with the rear end of the high-frequency rectifier circuit. Therefore, a technical problem that the transmission efficiency of the system is too low because of the short transmission distance and the deviation between polar plates in the coupled structure in the prior art can be solved.

The invention discloses an impurity-removing watering device for landscape appreciative Dendrobium officinale planting. The impurity-removing watering device includes a water inlet pipe, a barrel, a water outlet pipe and branch pipes; a left end and a right end of the barrel are fixedly connected to the water inlet pipe and the water outlet pipe respectively; filtering screens can block large particular impurities and perform primary filtering on water; water streams flow to drive propeller impellers to rotate so as to drive scrapping plates to scrape the large particular impurities on surfaces of the filtering screens, and in this way, the problem that the filtering effect is affected due to excess impurities absorbed on the filtering screens during a long time filtering process can be overcome; the impurities are deposited on an arc covering plate, the impurities can be discharged by regularly opening a seal ball valve; first magnets on rotation rings and second magnets in gaps between the rotation rings can absorb iron impurities in water, and perform secondary filtering on the water; an intermediate section of the barrel can be dismounted to remove the impurities, the service life is prolonged, covering nets and filtering materials can perform third filtering on the water and soften the water quality to some extent, and growth of the Dendrobium officinale is facilitated.

The invention discloses a cyclone filter for sponge city rainwater collection. The cyclone filter comprises a shell, a rainwater collection device and a water incoming device, a filter net is arranged in the shell, a first water inlet is arranged at the upper end of the shell, the side face of the shell is provided with a water outlet, the lower end of the shell is connected with a blow-down valve, the lower end of the first water inlet is connected with a flow slowing device, the water incoming device is mounted at the upper end of the first water inlet and connected with the rainwater collection device which collects rainwater, and the rainwater is delivered into the cyclone filter for centrifugal separation through the water incoming device. Aiming at the defects of existing cyclone filters, the rainwater collection device is arranged on the shell of the cyclone filter, so that the cyclone filter itself has a rainwater collection function, the objective of integrating rainwater collection with rainwater purification, can continuously recycle rainwater, is quite high in efficiency and fully utilizes rainwater resources.

The invention discloses an efficient bag-type air dust remover. The efficient bag-type air dust remover comprises a box body and an air inlet pipe, the air inlet pipe is installed at the top of the left side of the box body, bottom pillars are installed at the four corners of the bottom of the box body, the outer wall of the bag body is connected with the inner wall of a top plate, a motor wheel is connected with idler wheels through a belt, multiple top rods are installed on the outer walls of the idler wheels, first springs are installed in inner cavities of the top rods, connecting rods areinstalled at the tops of the first springs, and pulleys are installed at the tops of the connecting rods, and are in lap joint with the outer walls of the right sides of filters. By means of the efficient bag-type air dust remover, through an air pump which is installed on the inner wall of the top of the box body, it is also prevented that the filters are damaged when the filters are fiercely struck by the idler wheels; through a waste residue opening which is formed in the bottom of the box body, waste residues filtered out by the filters can fall down along the waste residue opening, the purpose of timely cleaning away the residues is achieved, and it is prevented that the filtering effect gets poor when too many waste residues are accumulated inside the box body.

The invention provides a marine micro-plastic collection device, and belongs to the technical field of micro-plastic collection. The device comprises a ship body, two circular pipes and a rotating mechanism, the two circular pipes are respectively located at the left side and the right side of the ship body correspondingly, the length directions of the two circular pipes are consistent with the length direction of the ship body, every circular pipe is horizontally provided with supporting rods, the free ends of the supporting rods are hinged to the ship body, a water inlet is arranged at one end, close to the head of the ship body, of every circular pipe, a water outlet is arranged at one end, close to the tail of the ship body, of each circular pipe, three filtering mechanisms are sequentially arranged in every circular pipe from the corresponding water inlet to the corresponding water outlet, the three filtering mechanisms can sequentially filter micro-plastics from large to small, the rotating mechanism is arranged on the ship body structure, and the rotating mechanism can drive the two round pipes to rotate in the same direction and in the opposite directions at the same time.The device can quickly collect the micro-plastics in the ocean, and is simple and efficient.

The invention discloses a municipal garden drainage cellar well system, which comprises a water outlet, a first filter plate and a cellar well. A second sleeve is installed at the bottom of the water outlet, a push rod is installed at the inner bottom of the second sleeve, a third sleeve is installed at the bottom of the second sleeve, and the push rod runs through the first The second sleeve, the push rod is connected with the third sleeve through a compression spring. The drainage pit system for municipal gardens, through the cooperation of the stopper, the ejector rod and the compression spring, blocks the drain when there is no rainwater left, which can prevent the smell from floating out; through the cooperation of the third baffle and the rotating shaft, it can Scrape off the leaf sludge left on the second filter plate to prevent the second filter plate from being blocked and the third filter plate from being blocked to affect the filtering effect. This system separates rainwater in multiple stages, greatly improving the filtration efficiency efficiency and quality.

The invention belongs to the technical field of machining equipment, particularly relates to environment-friendly machining equipment facilitating cleaning and aims to solve the problem that dust andsweeps cannot be cleaned up in the prior art. According to the following scheme, the environment-friendly machining equipment comprises a workbench; a machining table is fixedly mounted in the centerof the top of the workbench; a plurality of material leaking holes are evenly formed in the top of the machining table at equal intervals; a through hole is formed in the top of the workbench; a funnel is fixedly installed in the center of the bottom of the workbench; the machining table, the through hole and the funnel are correspondingly arranged in position; and supporting plates are fixedly installed on the two sides of the bottom of the workbench. The environment-friendly machining equipment is compact in structure, reasonable in design and convenient to operate, dust and scraps generatedin the machining process can be collected, the air quality of the surrounding environment is improved, dust accumulated on a filter screen can be removed through a brush, and the situation that the filtering effect is affected due to the fact that much dust is accumulated on the filter screen is effectively avoided.

The invention discloses an aquatic animal fertilized ovum in-vitro incubating device. The aquatic animal fertilized ovum in-vitro incubating device is characterized by comprising an incubator, a nutrient solution disinfecting device, a circulating device for circulating a nutrient solution in the incubator in the incubating process, a temperature control device for controlling the temperature in the incubator, and a filtering device for separating fertilized ova from the nutrient solution, the filtering device is provided with a wavy first slide groove, a wavy second slide groove and a filterscreen arranged on the first slide groove and the second slide groove, the circulating device is provided with an overflow hole, and the overflow hole is higher than the lowest portion of the filter screen and lower than the highest portion of the filter screen. By simulating the micro flowing water environment in the natural conditions and meanwhile keeping the temperature and cleanliness of thenutrient solution, the aquatic animal fertilized ovum in-vitro incubating survival rate is increased.

The invention discloses a three-proofing filtering element, which comprises a metal external barrel, an upper cover plate, a lower cover plate, a metal inner cover, a paper core upper end cover, a paper core lower end cover, a paper core and an activated carbon granule layer. The three-proofing filtering element has a scientific and reasonable overall structure, can efficiently filter particulates and gas smoke through two-stage filtering, is suitable for military installation, refuge places, fire sites and other specific environments, and has excellent resistance to impact, firing pulse and harsh environment. In the first-stage filtering, the paper core, especially fiberglass paper core, is adopted for filtering, thus having the advantages of high filtering precision, low original resistance, high filtering efficiency, high temperature resistance and high pressure resistance, strong chemical resistance, and resistance to mold and moisture. In the second-stage filtering, activated carbon is adopted for filtering, adsorption and conversion, thus having a distinct effect of removing toxic chemicals, fine dust, pollen, pathogenic bacteria, smoke, water molecules, off odor, formaldehyde, VOC organic volatiles and other gases, and the effective rate is up to 99.99995%.

The invention discloses environment-friendly efficient dust-removing clearing equipment for electrical engineering equipment, and relates to the equipment dust-removing field. In order to solve the problems that existing equipment dust-removing device is not good in dust-removing effect, and cannot bring use convenience to a user, the invention discloses the following scheme: the environment-friendly efficient dust-removing clearing equipment comprises a dust collecting box fixedly arranged on a movable base and a water tank, wherein the top of the dust collecting box is fixedly equipped withan L-shaped mounting plate; a vertical air guide sleeve is fixedly arranged on the top inner wall of the dust collecting box; the lower end of the air guide sleeve is integrally equipped with a hollowmesh enclosure; the outer side of the hollow mesh enclosure is fixedly equipped with a dust filter cloth bag through a hoop; and the upper part of the dust collecting box is rotatably equipped with avertical rotary rod. The environment-friendly efficient dust-removing clearing equipment can be used for clearing dust for the equipment surface, further can avoid dust flying, and enables dust processing effect to be good under dual-processing effect; and moreover, in a dust clearing process, too thick dust attached on a filter bag further can be automatically wiped off periodically, so that toothick dust is prevented from affecting the filter effect.

The invention discloses an axle-free water pressure circulation impulse starting filter, comprising a roller; a support wheel is arranged below the outer wall of the roller of which the surface is provided with filter meshes; a sewage inlet pipe and a sewage collecting slot are formed in the roller of which the inner wall is provided with a water pressure impact plate; the water outlet of the sewage inlet pipe is positioned at position which can supply water to impact a water pressure impact plate and enables the same to drive the roller to rotate. A water body need to be filtered and with mobility drives the roller to rotate without the need of electric energy for driving, and the aim of efficiently continuously treating various types of sewage without energy consumption is realized. The water pressure impact plate is made of a filter net plate, thus firstly, increasing a sewage filtering area and secondly, preventing sludge from being accumulated at the bottom of the roller and affecting a filtering effect.

The invention discloses a liquor-brewing bottom boiler water filter and a liquor-brewing bottom boiler water filtering method and particularly relates to the liquor-brewing bottom boiler water filter and the liquor-brewing bottom boiler water filtering method which are used in the field of liquor production. The invention provides a liquor-brewing bottom boiler water filter which can effectively prevent a filtering device from blocking, is high in filtering efficiency, is less in vinasse cleaning times and can improve stability of waste water treatment. The filter includes a water inlet pipe, a water collecting box and a pedal. The water collecting box is formed by a bottom plate and three side plates in an enclosing manner. The pedal is disposed on an end part of the water collecting box. The three side plates are filtering plates provided with screening gaps. A filtering area of the whole liquor-brewing bottom boiler water filter is increased and filtering efficiency is increased. The invention also provides the liquor-brewing bottom boiler water filtering method which can effectively prevent the filtering device from blocking, is high in filtering efficiency, is less in the vinasse cleaning times and can improve the stability of waste water treatment. The liquor-brewing bottom boiler water is fed into the water collecting box through the water inlet and is filtered through the liquor-brewing bottom boiler water filter so that the filtering efficiency is increased.

The invention discloses a filtering device for a pharmaceutical device, relates to the technical field of pharmaceutical equipment, and is mainly for solving the problem of impurity accumulation of anexisting filtering device, and requirements for regular manual cleaning. The filtering device includes a box body and a filtering mechanism, the filtering mechanism is arranged in the box body, the filtering mechanism comprises a filter mesh cylinder, a motor, a scraper and a brush strip, the top of the box body is provided with an air blowing device, and the air blowing device comprises a fan and a hard air pipe, and further comprises a backwashing device. The backwashing device comprises a water tank, a water pump and a hard water pipe. According to the invention, the filtering mechanism isarranged, so that the filtering device can automatically clean impurities on the filter mesh cylinder to prevent the impurity accumulation from affecting the filtering effect. The brush strip brushing the filter mesh cylinder can prevent meshes of the filter mesh cylinder from being blocked and improve the filtration efficiency. The backwashing device is arranged, and water in the water tank is pumped into the hard water pipe by the water pump, and then is sprayed out by a spray hole to backwash the rotating filter mesh cylinder, so that the work efficiency is improved and a next time of useis facilitated.

The invention discloses a dust removal system for a waste and old product recovery line. The dust removal system comprises a cyclone dust remover, a pulse dust remover and a fan, wherein the cyclone dust remover comprises an air inlet and an outlet; air exhausted by a machine goes in the air inlet; the pulse dust remover comprises a casing, an air supply device and a plurality of filtering elements; a filtering cavity is formed inside the casing, and comprises a first cavity and a second cavity which are mutually isolated; the plurality of filtering elements are arranged in the first cavity; each filtering element is provided with an inside space; the inside space communicates with filtering holes of the corresponding element, and communicates with the second cavity; the first cavity communicates with the air outlet of the cyclone dust remover; the air supply device is provided for providing pulse type air flow, and comprises a plurality of air outlet pipes; each air outlet pipe extends to the inside space of at least one filtering element; an air inlet of the fan communicates with the second cavity. The dust removal system has the advantages that air exhausted by the recovery line can realize dust removal, so that the air quality is improved.

The invention belongs to the technical field of water treatment equipment, and discloses a variable gap type fiber bundle filter and an application method thereof. The filter comprises a shell, a filtration water inlet pipe, and a filtration water outlet pipe, wherein the filtration water inlet pipe and the filtration water outlet pipe are arranged on the shell. A transmission rod and a fiber bundle filtering element are arranged in the shell. The filtration water outlet pipe stretches into the fiber bundle filtering element. The filtration water inlet pipe is provided with a flocculating device. A driving member is arranged on the exterior of the shell. The upper end and lower end of the transmission rod are respectively provided with an upper connection plate and a lower connection plate that are connected to the fiber bundle filtering element. The transmission rod drives the upper connection plate to adjust the compression gap of the fiber bundle filtering element. According to the application method, at first, the wastewater is flocculated by the flocculating device, and then water is filtered by the fiber bundle filtering element, which can be washed and repeatedly used. The operation is simple, an adjustable compression structure is adopted, thus the filtration density can be adjusted according to the needs; the filtration water outlet pipe stretches into the fiber bundle filtering element, the water side-stream degree is reduced, the filtering effect is improved; the fiber bundle filtering element can be repeatedly washed and used, and the cost is reduced.

The invention discloses an adjustable multifunctional sewage treatment method, which is characterized in that a booster pump is installed at the side position of the top end of a treatment box, the input port of the booster pump is fixedly connected with a water inlet pipe, a self-separation mechanism is installed at the side position of the inner wall of the treatment box, the self-separation mechanism comprises a rotating rod, a placing plate, a supporting block, a heavy ball, a limiting plate, an ejector rod, a telescopic spring, a limiting block, a fixing block, a rotating plate, a mounting groove, an auxiliary rubber roller, a partition plate, a first grid and a second grid. According to the invention, by structurally arranging a self-separation mechanism, large impurities in sewage can be conveniently filtered under the action of a placing plate and a second grid; and when the placing plate is perpendicular to the bottom of a treatment box, an ejector rod impacts a rotating plate through the gravitational acceleration of a heavy ball, so that larger impurities can be conveniently guided into a first grid through an auxiliary rubber roller, and the sewage and the larger impurities can be separated in sequence.

The invention relates to the field of sewage purification and more particularly relates to an alga graded filtering device for removing algae in a coupling manner. The alga graded filtering device comprises an alga separate filtering tank, a collection driver, a feeding pipe, a liquid recycling pipe, four alga recycling frames and two alga recycling pushing devices, wherein the collection driver is rotatably connected to the upper end of the alga separate filtering tank; the feeding pipe and the liquid recycling pipe are fixedly connected and communicated to upper and lower ends of the alga separate filtering tank respectively; left and right ends of the collection driver are in intermittent engaged transmission with the two alga recycling pushing devices respectively. The alga graded filtering device provided by the invention has the beneficial effects that the algae in liquid containing batch algae can be filtered and discharged in a graded manner; meanwhile, a phenomenon that blocking is caused by the fact that the liquid contains excessive algae so that the filtering effect is influenced is also prevented.

The invention relates to a flue gas desulfurization and denitrification treatment method for a coal-fired power plant. A workbench, a collecting device and a treatment device are included. The collecting device is fixedly installed at the upper end of the workbench. The treatment device is fixedly mounted at the upper end of the collecting device. The treatment device comprises a treatment tank, an air inlet pipe, a filter frame, a feeding pipe, a motor, a stirring frame and a valve. According to the invention, the flue gas is primarily filtered through the treatment device, a filtering part is cleaned, the problem that the service life and using effect of the filtering part are reduced due to too many impurities accumulated on the surface of the filtering part is prevented, and the flue gas can completely react with a reagent; and the reacted liquid is filtered through the collecting device, the surface of a filtering plate is cleaned, so that the situation in which the filtering plate is blocked and the filtering effect is influenced due to the fact that too many sediments are accumulated on the surface of the filtering plate is prevented.

The invention discloses a bypass filtration system for filtering impurities in water. The bypass filtration system comprises a water filtering tank and a settling tank arranged on the outer side wallof the water filtering tank, wherein a first water inlet hole is formed in the upper side wall of the water filtering tank, a first water outlet pipe is arranged at the bottom of the water filtering tank, a first through hole is formed in the side wall of the water filtering tank, a second through hole matched with the first through hole is formed in the side wall of the settling tank, a rotatingshaft is arranged on one side, close to the water filtering tank, of the settling tank in the vertical horizontal direction, a foldable filtering assembly is arranged on the side wall of the rotatingshaft, the filtering assembly is located in the water filtering tank in the initial state, the filtering assembly is completely unfolded and blocks the cross section of the water filtering tank, and the part, located in the water filtering tank, of the filtering assembly is folded in the direction close to the settling tank in use. Compared with the prior art, the bypass filtering system providedby the invention has the advantages that by arranging the foldable filtering assembly, impurities deposited on the filtering assembly are transferred into the settling tank, so that the impurities areprevented from being deposited on the filtering assembly to influence the filtering effect.

The invention provides an airflow guide type atomizer. The atomizer comprises a machine shell (10), a shell (30) with an atomizing cavity (310), an air pump (21), an air pipe (22), an air nozzle (23)and an oil nozzle (24), a filter (40) is further installed in the shell (30), and a guide plate (332) used for guiding airflow jetted by the air nozzle (23) to flow upwards is arranged on the side, right opposite to the air nozzle (23). According to the scheme, when the air nozzle (23) sprays air flow and extracts essential oil to form mixed air flow, the mixed air flow can be guided by the guideplate (332) so as to be better guided to the filter (40), and the filter (40) can conveniently filter the mixed air flow; meanwhile, the guide plate (332) can also adsorb and gather part of essentialoil liquid drops in the mixed airflow, so that the situation that the essential oil liquid drops splash onto the filter (40) and block the filter (40) is reduced, and the filtering effect is preventedfrom being influenced.

The invention discloses a dust filtering device capable of realizing automatic control and on-line cleaning functions. The dust filtering device comprises a rack as well as a filtering system, an automatic cleaning system, a transmission system and a transmission control system which are arranged on the rack, wherein the filtering system comprises a filtering screen and a filtering screen tensioning mechanism; the filtering screen is erected on the tensioning mechanism; the automatic cleaning system comprises upper pumping devices, lower pumping devices, an upper brush roller and a lower brushroller; the upper pumping devices and the lower pumping devices are symmetrically arranged at the top and the bottom of the rack respectively; the upper brush roller is arranged on the rack through abearing and is positioned above the upper pumping devices; the lower brush roller is arranged on the rack through a bearing and is positioned above the lower pumping devices; and the transmission system comprises an upper transmission roller, a lower transmission roller, a transmission shaft and a driving motor. The dust filtering device disclosed by the invention is capable of performing continuous dust removal and filtration on the gas in a pipeline, has a self-cleaning function and prevents secondary pollution.

The present invention discloses an application of a rush core used as an atmospheric air and a drinking water filtration material, and provides a novel filtering structure of the rush core, the filtration material has good air permeability, permeability and biological activity, is environmentally friendly, and has good filtering effect for particles in water and air. In addition, the invention also discloses a novel filtering device of the novel filtering structure, the novel filtering device comprises a rush core layer composed of rush core particles. The rush core layer is formed by the rush core particles by mutual bonding, and also can be formed by other filtering mechanisms. The rush core used as an atmospheric air and the drinking water filtration material has good air permeability, permeability and biological activity, is environmentally friendly, and has good filtering effect for particles in water and air.

The invention relates to the technical field of cement production, in particular to a crusher for cement production. The crusher comprises a crushing cylinder, wherein the top end of the crushing cylinder is fixedly sleeved with a cylinder cover, a feeding port is formed in the cylinder cover, a turning cover is mounted at the feeding port, a crushing mechanism is arranged in the crushing cylinder, the crushing mechanism comprises a motor frame fixedly mounted at the middle position of the top end of the cylinder cover, a first motor is fixedly mounted in the motor frame, a main driving shaftis vertically connected to the end of an output shaft of the first motor, the main driving shaft penetrates through the cylinder cover and extends into the crushing cylinder, a U-shaped frame is fixedly mounted at the end of the main driving shaft, and a grinding roller is rotationally mounted between the two ends of the inner side of the U-shaped frame. Compared with the prior art, the crusher has the advantages that the crushing efficiency is high, the crushing uniformity is good, a dust collection effect is achieved, the pollution of a working environment is lowered, and the waste of raw materials is relieved.

The invention discloses a high-efficiency domestic wastewater treatment device. The high-efficiency domestic wastewater treatment device structurally comprises a water inlet seat, an exhausting pipe,connecting supports, a water outlet seat, an impurity filtering box and a domestic wastewater treatment device, wherein the water inlet seat is connected to one end of the domestic wastewater treatment device; the connecting supports are uniformly welded on the upper-end surface of the domestic wastewater treatment device at equal distances; the exhausting pipe is welded at one side of the upper-end surface of the domestic wastewater treatment device; the other end of the domestic wastewater treatment device is connected with the water outlet seat; the impurity filtering box is arranged on theinner surface of the domestic wastewater treatment device. According to the high-efficiency domestic wastewater treatment device, the impurity filtering box is arranged so that the domestic wastewater treatment device with high equipment efficiency can be used for effectively preventing a condition that the filtering effect of equipment is influenced when excessive impurities are accumulated in domestic wastewater in a utilization process; the maintenance on a filtering plate by a user is reduced and the working efficiency of the equipment is improved; the high-efficiency domestic wastewatertreatment device is convenient to use and strong in practicability.