54results about How to "Play a filter" patented technology

The invention provides a submerged plant modularized growth bed and a method for recovering growth of underwater submerged plants. The submerged plant modularized growth bed comprises suspended solids, planting layers, plant layers, a growth substrate layer, a bearing layer and balance weight facilities, the submerged plant modularized growth beds are mutually connected to form an entire piece, micropores are formed in the bearing layer so that roots of the plants can penetrate through, the growth substrate layer adopts planting soil, the periphery of the planting layer is fixedly connected with the periphery of the bearing layer, the planting layers and the bearing layer wrap the growth substrate layer, the suspended solids are fixedly arranged around the submerged plant modularized growth bed, each suspended solid is hollow and is filled with air, and the balance weights are fixedly arranged at the lower end portion of the suspended solids to keep the depth of the modularized growth bed suspending on the water surface. The submerged plant modularized growth bed is reasonable in design, compact in structure, simple to manufacture, low in cost, simple to operate and convenient to manage, and the submerged plant modularized growth bed is degraded along with the growth of the underwater submerged plants, is free of pollution, protects the environment, is wide in application range, is widely popularized conveniently, and is favorable for recovery of the underwater submerged plants in different water areas.

The invention discloses a floor mining damage zone multi-section blocking synchronous leakage detection method, which comprises the following steps of: forming a downward drill hole in a roof rock layer from a coal rock roadway, and cleaning the drill hole; installing a detection system, wherein a test probe of the detection system is formed by sequentially connecting a plurality of detection units, and the adjacent detection units are detachably connected through clamp groove joints; conveying the detection system to the initial position of the drill hole by using a drill pipe and a drilling machine in a supply measuring system; using a blocking system to seal the drill hole; using a water injection operation platform to convey a water source at the specific pressure to a water inlet pipe; processing and analyzing the collected data, then, forming a corresponding flow water vector diagram of the test section, and the like. The method provided by the invention has the advantages that the multi-section and synchronous measurement of a floor mining damage zone can be realized; the test section number in one test can be properly increased according to the length of the drill hole; the workload is exponentially reduced; and the measurement precision is improved.

The invention discloses an underground garage water drainage system which comprises a garage slope, wherein a water guide groove is formed in the upper surface of the garage slope; a garage bottom plate is connected with the lower end of the garage slope. As the water guide groove is formed in the upper surface of the garage slope, rainwater can be conveniently guided into a water inlet groove through the water guide groove; a fixing plate is fixedly mounted at the inner upper end of the water inlet groove, so that a cover plate can be conveniently inserted into a holding cavity through a fixing column; in addition, a first magnet and a second magnet are absorbed by each other, so that the cover plate can be limited and fixed and can be convenient and rapid to mount and dismount; a filtering net is arranged in the cover plate, so that functions of filtration and water drainage can be achieved; a guide rod is fixedly mounted on the fixing plate, and the guide rod is sleeved by a springsleeve and a water baffle plate, so that the water baffle plate can be conveniently moved on the guide rod in a telescopic manner, a telescopic reciprocation function for the water baffle plate can beachieved through the spring sleeve, foreign matters on the upper surface of the filtering net can be cleaned through a cleaning brush below the water baffle plate, and the water drainage effect of the filtering net can be thus improved.

The invention discloses a floor block with active carbons, which relates to a floor block and aims at solving the problems that the existing environmental building materials or decoration materials can not eliminate indoor harmful substances though the harmful substances in the decoration materials or the harmful substances which are released by the decoration materials meet standards. The floor block with active carbons adopts a first technical proposal that: through holes that are corresponding to grooves on the bottom surface of a base material layer are opened on a balancing layer; the active carbons are fixed in the grooves on the bottom surface of the base material layer and in the through holes of the balancing layer; the top surface of a venting interlayer is fixedly connected with the bottom surface of the balancing layer. The floor block with active carbons adopts a second technical proposal that: through holes are opened on a sound absorbing layer; the active carbons are fixed in the through holes; the top surface of the venting interlayer is fixedly connected with the bottom surface of the sound absorbing layer. The floor block with active carbons adopts a third technical proposal that: the active carbon layer is fixed on the bottom surface of the balancing layer; the venting interlayer is fixed on a lower side surface of the active carbon layer. The floor block of the invention has active carbons which can timely absorb, filter and eliminate the harmful gases in the rooms with such floor blocks, thereby improving the air quality.

The invention is a depth-type sand filter, the size of sand gradually diminishing with the flow direction of the normal filtering fluid. It leads the fluid to the inlet of the sand filter through the pipeline, firstly holds back big suspension through big sand area, then holds back medium suspension through medium sand area, finally eliminates most fine suspension through fine sand area, and then makes the fluid flow out from the outlet. It is composed of wall body, filtering sand and ground leak; the wall body is set with inlet and outlet, the ground leak is set under the wall body, the filtering sand is spread in the liquid flow direction in turn according to the size. It can adopt upflow and downflow modes. It can stably and economically run in a wide range. It is applied to economical sand filtering field, especially the field where the sand filter is used infrequently or discontinuously.

The invention discloses an energy-saving purification device of industrial waste gas. The energy-saving purification device comprises a base, wherein support legs and a water storage tank are fixedlyconnected to the bottom of the base, a purifying box is fixedly connected with the top of the base, and the left side of the purifying box communicates with a first filter box; an air inlet pipe communicates with the left side of the top of the first filter box, and a first filter net is disposed in the inner cavity of the first filter box. Through arrangement and cooperative use of the base, thepurifying box, an activated carbon adsorption net, an ultrafiltration membrane filter net, a second filter box, an air outlet pipe, an exhaust fan, a first water pump, a water pipe, a nozzle, the airinlet pipe, the first filter box, the first filter net, a water suction pipe, a second water pump, a connecting pipe, the water storage tank, support legs, a water injection pipe, pipe covers, the second filter net and a water outlet pipe, the problem that an existing industrial waste gas purifying device is not environmentally friendly and energy-saving is solved; the energy-saving purification device of the industrial waste gas has the advantages of environmental protection and energy conservation, and is worth promoting.

The invention discloses a multistage medical sewage treatment device. The bottom of a device body is provided with a base; the top of the base is provided with a treatment box; the top of the treatment box is provided with a water inlet; the top of the inside of the treatment box is provided with a slag removal chamber; the left upper corner of the slag removal chamber is provided with a slag removal device; one end of the slag removal device is provided with an electric push rod; one end of the electric push rod is provided with a slag discharging board; the upper right corner of the slag removal chamber is provided with a suspended matter outlet; the bottom end of the slag removal chamber is provided with a grid; the bottom of the slag removal chamber is provided with a sedimentation chamber; the bottom of the sedimentation chamber is provided with a biological treatment chamber; the bottom of the biological treatment room is provided with a disinfection chamber; the lower right corner of the disinfection chamber is provided with a clear water outlet; the bottom of the base is provided with casters. One end of the electric push rod is provided with the slag discharging board, andthe surface of the slag discharging board is provided with a plurality of bumps, so that larger suspended solids can be collided, dispersed and discharged. At the same time, the overall strength of the slag discharging board is enhanced, and the service life of the slag discharging board is prolonged.

The invention discloses a high-temperature-resistant antibacterial nanofiber non-woven fabric and a preparation method and application thereof. The non-woven fabric is prepared from 51%-98.5% by weight of butene polymer, 0.05%-5% by weight of a bacteriostatic agent, 0.05%-5% by weight of an anti-aging agent, 0.05%-5% by weight of an antistatic agent, 0%-2% by weight of a coloring agent, 0%-2% by weight of a surfactant and 0% to 30% by weight of an inorganic filler. The non-woven fabric is formed by disorderly arranging multiple layers of superfine fibers with the diameter of 100-1000 nm, the thickness of the non-woven fabric is 5 microns to 1 centimeter, the non-woven fabric has inhibiting and killing effects on fungi, bacteria and viruses, the sterilization rate reaches 99.99%, and the virus inhibition rate reaches 99.99%. The non-woven fabric is prepared by adopting melt electrostatic spinning.

The invention belongs to the technical field of plate-making printing machines and in particular relates to a nano material computer to plate (CTP) printing device. The printing device comprises a bottom plate, a V-shaped guide rail, a lifting device, a horizontal transmission mechanism and a nozzle combination device, wherein the nozzle combination device is respectively connected with a slidingplate of the lifting device, the horizontal transmission mechanism and a V-shaped sliding seat body of the V-shaped guide rail, and slides along the V-shaped guide rail; the lifting device comprises a driving mechanism, a transmission adjusting mechanism, a middle plate, the sliding plate and a positioning mechanism; the driving mechanism is arranged on the bottom plate; one end of the transmission adjusting mechanism is meshed with a gear of the driving mechanism through a single-plate cam of the transmission adjusting mechanism, and the other end of the transmission adjusting mechanism is arranged on the sliding plate through a roller seat body; the middle plate is arranged on a main plate of the transmission adjusting mechanism; one end of the positioning mechanism is connected with the middle plate and the other end of the positioning mechanism is connected with the sliding plate; and the sliding plate is connected with the middle plate through two second sliding rail components. The arranged nozzle combination device meets the nano plate-making requirement, and the printing device has high precision and a good effect.

The invention discloses a conductor path real-time calculation and inspection method and engine. The method includes the steps: (1) receiving inputted geometric data and constraint conditions; (2) inspecting and outputting a conductor path breaking the constraint conditions by the traverse path real-time calculation and inspection engine; (3) back-annotating the conductor path breaking the constraint conditions to a layout design interface and assisting in correcting layout. According to the conductor path real-time calculation and inspection method and engine, when layout data are incomplete, results can be rapidly obtained only by inspecting the geometric data (including conductor polygonal shapes and conductor contact points) of a conductor material layer, real-time inspection requirements are met, and calculation amount is small.

The invention discloses a water sample collector which comprises a waterborne control system and an underwater collecting system, wherein the waterborne control system consists of a power supply and a switch; the underwater collecting system consists of a water collecting bin, a solenoid valve, a filtering net, a hook, a sewage bottle, a fixing device, a support frame, a glass conduit, a hemp rope with scales, a rubber plug and a power line. The water sample is controlled to enter the water collecting system by utilizing the solenoid valve, weeds, sludge and other solid pollutants in water are filtered by utilizing the filtering net, and the collected water sample is directly introduced into the sewage bottle. Therefore, multiple bottles of water samples can be taken at different depths, and the water sample collector is convenient to use and simple in structure.

The invention relates to a drainage system of a cut-type open cut tunnel. An upper water collecting channel and a lower water collecting channel are arranged in a backfill layer of the open cut tunnel, each water collecting channel comprises a longitudinal drainage pipe and a fixing base used for fixing the longitudinal drainage pipe, a plurality of transverse water guide pipes are arranged between the two longitudinal water drainage pipes at intervals, and a plurality of water inflow holes are annularly formed in the upper portions of the longitudinal drainage pipes; a drainage filtering layer is further arranged between a backfill soil and stone layer and a side wall backfill layer; two rows of upward inclined drainage holes are further formed in a side slope in the longitudinal direction of the tunnel at intervals; a transverse drainage slope is arranged on the top face of the side wall backfill layer. According to the drainage system, on the basis of a traditional drainage system of the open cut tunnel, the drainage mode that a drainage device is tightly attached to an open cut tunnel lining is changed; by arranging the water collecting channels, the longitudinal drainage pipes, a concrete pedestal, the upward oblique drainage holes, the drainage filtering layer, the transverse drainage slope and the like, the effect of drainage at the back of the lining is greatly improved, and the defects of drainage at the back of a current mountain tunnel open cut tunnel lining are overcome systematically.

The invention discloses multifunctional machining mechanical equipment for plastic particle production. The multifunctional machining mechanical equipment comprises a supporting underframe, a fixed base and a conveying box. A conveying device is arranged in the conveying box, a driving wheel is arranged at the left end of the conveying device, and a driven wheel is arranged at the right end of theconveying device. Conveying frames are arranged at the lower end of the driving wheel and the lower end of the driven wheel, the driving wheel is connected with a conveying motor, and a conveying belt is arranged between the driving wheel and the driven wheel. An impurity removal box is arranged at the upper end of the conveying box, a discharging pipeline passes between the conveying box and theimpurity removal box, and a stirring box is arranged at the upper end of the impurity removal box. The multifunctional machining mechanical equipment is simple and reasonable in structural design andconvenient and fast to operate when used, and is used for the machining work of plastic particles. The equipment is easy and convenient to operate and high in automation degree, and has multiple functions of drying, impurity removal and conveying, the machining equipment of the plastic particles can be improved, and great convenience is brought to workers.

The invention provides an ultraviolet sterilizing vehicle-mounted filtering aromatherapy device. A pressing groove is formed in the shell; a switching electrode is arranged in the pressing groove; a core shell is arranged in the shell; an upper filter screen and a lower filter screen are arranged between the core shell and the shell to form a filter cavity; an air outlet cavity is formed above the upper filter screen and an air inlet cavity is formed below the lower filter screen; the filter cavity is divided into a plurality of spiral filter channels; the filter channels are filled with filter materials; an air sucking fan is arranged below the core shell; the rotating direction of the air sucking fan is the same as the bottom-to-top spiral direction of the filter channels; an ultraviolet lamp is arranged at the bottom of the air inlet cavity; an accommodating box is arranged in an opening of the core shell; a heating device and an electrical control device are arranged below the accommodating box; the shell is connected with a USB power wire; a control key is arranged on the shell; the electrical control device is electrically connected with the heating device, the air sucking fan, the switching electrode, the ultraviolet lamp and the control key; the switching electrode is electrically connected with the USB power wire. The ultraviolet sterilizing vehicle-mounted filtering aromatherapy device can accelerate volatilization of aroma, prolong the filter path, improve the filter effect and improve the air passing efficiency, and has two functions of filtering and aromatherapy.

The invention discloses a composite nano antibacterial air filtering membrane which comprises an aggregate base layer, a sticking and spraying layer and a nanofiber membrane layer which are sequentially arranged, the aggregate base layer is gum dipping wood pulp paper or polyester non-woven fabric, the sticking and spraying layer is a polyolefin material and is stuck and sprayed on the aggregate base layer, and the nanofiber membrane layer and the aggregate base layer are bonded together through hot pressing of the sticking and spraying layer; the nanofiber membrane layer is of a three-dimensional net-shaped structure which is formed by superfine fibers with the diameter of 300-500nm and is prepared from a high polymer material through an electrostatic spinning process; an antibacterial agent is added into an electrostatic spinning solution used for preparing the nanofiber membrane layer, and the antibacterial agent is added into the electrostatic spinning solution according to the proportion of 0.1%-1%. The composite nano antibacterial air filtering membrane has the performance of efficient filtration and low resistance, has certain antibacterial and bacteriostatic ability, can realize air blowback self-cleaning, can be repeatedly used, is a novel air filter material, and has a wide application prospect.

The invention discloses a cutting device with a dust collection structure for PVC plate processing. The cutting device comprises a workbench, wherein a plurality of through holes are dug in the top end surface of the workbench, a cutting plate is arranged at the top of the workbench, the cutting plate and the workbench are fixedly connected through a connector, two slide mechanisms are symmetrically arranged on the cutting plate, and a cutting groove is dug in the top end surface of the cutting plate; a limiting mechanism is arranged in the cutting groove, fixed bins are fixedly connected to the two end surfaces of the workbench, movable doors are rotatably connected to the ends, away from the workbench, of the fixed bins, filter mechanisms are arranged in the fixed bins, and supporting bases are fixedly connected to the top end surfaces of the two fixed bins. The cutting device has the beneficial effects that the filter mechanisms can achieve the effects of adsorbing and filtering sucked dust, avoid the situation that the sucked dust is inconvenient to clean due to the fact that the sucked dust is not limited, and when the sucked dust needs to be cleaned, the purpose of cleaning and replacing can be achieved only by taking out a sponge layer and an activated carbon adsorption layer.

The invention belongs to the technical field of sewage treatment equipment, and particularly relates to a device and process of distributed domestic sewage treatment. The device comprises a cylindrical pool body, wherein the cylindrical pool body is internally provided with an anoxic tank, an aerobic tank and an inverted truncated conical tank, an air inlet pipe box is connected with an air inletpipe and a blower, and a water inlet pipe is arranged at the top of the left side of the anoxic tank, a water outlet is formed in the bottom of the right side of the anoxic tank, and a perforated aeration pipe is arranged in the anoxic tank; the aerobic tank communicates with the water outlet of the anoxic tank, a microporous aeration disc and a third gas stripping pump are arranged at the bottomof the aerobic tank, and a gap is formed in the side wall of the bottom of the inverted truncated conical tank; and a first gas stripping pump is also arranged at the bottom of the inverted truncatedconical tank, the outlet end of the first gas stripping pump is connected with a sludge returning pipe, the free end of the sludge returning pipe communicates with the anoxic tank, and a water outletpipe is arranged at the center of the top of the inverted truncated conical tank. The invention aims to solve the problems, which are caused by the structural defects of an existing sewage treatment device, of a poor effect of biological removal of nitrogen and phosphorus, poor quality of effluent, large floor space and no benefits for promotion of a distributed sewage treatment technology.

The invention relates to the technical field of medicine collection, and discloses a portable semen plantaginis collecting device. The device comprises a picking barrel, a collecting barrel is fixedlymounted at the top of the picking barrel, pressing devices distributed in an annular array are sequentially arranged on the outer wall of the picking barrel from top to bottom, each pressing device comprises a pressing rod, and one end of each pressing rod extends into a picking barrel cavity; and a friction plate is fixedly installed at one ends of the pressing rods, and a sweeping device is arranged on the inner wall of the friction plate. According to the portable semen plantaginis collecting device, through the arrangement of the sweeping device, when a permanent magnet A is randomly andrapidly pressed, under the combined action of mutual attraction of magnetic force and mutual repulsion of the magnetic force, a permanent magnet C on the pressed friction plate vibrates, and the vibration of the permanent magnet C drives hard bristles to shake ceaselessly, when the hard bristles shake when getting close to the outer wall of semen plantaginis, the shaking hard bristles further improve the falling efficiency of semen plantaginis fruits, and the semen plantaginis picking efficiency is further improved.

The invention relates to the technical field of catalytic oxidation combustion purification equipment, and discloses a device for purification treatment of exhaust gas of catalytic oxidation combustion. The device comprises a support table, an air guiding port is formed in the middle of the top of a device body, and an air guiding box is fixedly connected to the middle of the top of a bottom plate. The air guiding box is clamped to the middle of the bottom of the device body, and the top of the air guiding box is fixedly connected with a funnel. Screen cloths are fixedly connected to both sides of the funnel respectively, and the two screen cloths are fixedly connected with the two sides of the inner wall of the bottom of the device body respectively. A supporting frame is fixedly connected to the inner wall of the top of each screen cloth, and the two support frames are fixedly connected through a filter screen. A reverse osmosis membrane is fixedly connected to the top of the filterscreen. An activated carbon layer is fixedly connected to the top of the reverse osmosis membrane. According to the device for purification treatment of exhaust gas of catalytic oxidation combustion,exhaust gas generated after combustion is discharged into the device body through the air guiding port, and adsorption treatment is conducted through the activated carbon layer, so that exhaust gas can be degraded.

The invention discloses a pavement grooving machine. The pavement grooving machine comprises a body, a traveling wheel, a cutter disk, a lifting mechanism and a dust removal device, wherein the dust removal device comprises a dustproof cover, a cyclone dust collector and an air pump; the cyclone dust collector comprises an outlet filter region, a cyclone separator and a dust precipitation region; a partition plate is arranged between the outlet filter region and a vortex air inlet region; the outlet filter region and the vortex air inlet region are communicated with each other through a circular communication pipeline; the vortex air inlet region comprises a vortex part and a dust collector air inlet part which is externally tangent to a main body part; the dust collector air inlet part is connected with an air outlet of the dustproof cover; a filter screen is arranged in the outlet filter region. Sucked dust-containing air is centrifugally precipitated in the cyclone separator, enters the outlet filter region through a connection pipeline and is re-filtered, so that the aims of centrifugal dust removal and filtration are achieved; the situation of blocking or replacement of a filter bag can be avoided after the pavement grooving machine is used for a long time; light impurities can be filtered out through the filter screen, and the air pump is prevented from being blocked. Therefore, the pavement grooving machine is reasonable in structure, good in dust removal effect, high in working efficiency and low in using cost.

According to the laboratory air exchange device for intelligent manufacturing, through the arrangement of the air exchange box, the air purifier, the first draught fan, an outer communicating pipe, a temperature adjusting mechanism and a one-way filtering mechanism, when air in a laboratory is replaced, people can appropriately introduce external air according to the actual situation, and the air exchange efficiency is improved; the double effects of one-way circulation and filtering are achieved through the one-way filtering mechanism, through the simple structure, the structure of the device can be saved, the manufacturing cost of the device can be saved, and people can replace the device conveniently.

The invention provides an environment-friendly kitchen ventilator air purification device. The environment-friendly kitchen ventilator air purification device comprises a cover plate and an HEPA filter layer. A surrounding plate is welded to the rear end edge position of the top of the cover plate. The bottom end face of a kitchen ventilation shell is fixedly connected with a rubber corrugation telescopic sleeve. The bottom end face of the rubber corrugation telescopic sleeve is fixedly connected with an aluminum alloy square frame. Each of the left side and the right side of the bottom end face of the aluminum alloy square frame is connected with a handle. The bottom end face of the kitchen ventilation shell is fixedly connected with the rubber corrugation telescopic sleeve, so that during cooking, the height between the rubber corrugation telescopic sleeve and a cooking fume pot can be reduced only by downward pulling the handles, cooking fume can be well and effectively sucked awayby the kitchen ventilator along the rubber corrugation telescopic sleeve, and therefore the problem that when people conduct usage in real life, since a certain height exists between the cooking fumepot and the kitchen ventilator, cooking fume generated during cooking is not prone to being sucked away by the kitchen ventilator is solved.

The invention discloses a secondary water supply device with a water quality improving function. The secondary water supply device comprises a base, a water storage tank, a case, pump sets, a pipe distribution groove, a vertical pipe and a water outlet pipe, wherein the water storage tank is arranged on the left side of the top of the base, the case is arranged on the back surface of the top of the base, the pump sets are arranged at the top of the base at equal intervals, the pipe distribution groove is formed in the top of the base, one end of the vertical pipe is connected with water inlets of the pump sets, the other end of the vertical pipe is connected with a water pipe in the pipe distribution groove, the water outlet pipe is mounted in an inner cavity of the water storage tank in a penetrating manner, a water purifying pipe as well as a purifying cone, a water guide groove and activated carbon balls in the water purifying pipe are arranged in the water storage tank, tap water directly flows along the conical surface when passing through the water purifying pipe to be contacted with the purifying cone, the tap water can be continuously contacted with the activated carbon balls, and the activated carbon balls can purify the tap water at the moment.

The invention discloses a waste gas purification device for casting processing. The device comprises a purification box, a gas inlet pipe is arranged at one end of the purification box, a gas outlet pipe is arranged at the other end, a spraying cavity and a microwave purification cavity are formed in the inner cavity of the purification box, a filter screen is fixedly arranged at the inner side ofthe gas inlet pipe, and a filter screen assembly is arranged between the spraying cavity and the microwave purification cavity. The device is novel in structural design, capable of achieving purification treatment of various casting waste gas, good in purification effect and free of secondary pollution to air in the treatment process, and the treated gas can be directly exhausted into the atmosphere.

The invention relates to a water purification treatment agent and belongs to the technical field of water purification treatment agent preparation. The water purification treatment agent solves the technical problem that the existing water purification method utilizes liquid chlorine and chlorine dioxide and produces product water containing a large amount of suspensions damaging to human health. The water purification treatment agent has good water purification effects and reduces suspensions in water. The water purification treatment agent comprises, by weight, 25% of a zinc salt, 25% of Muyu-stone powder, 25% of tourmaline powder, 10% of negative ion powder and 15% of iron chloride. The above components are blended and are bonded to sintered carbon so that a filter core is obtained. The water purification treatment agent has effects of bacterium killing and inhibition, adsorption, physical filtration and flocculation.

The invention discloses an environmental-friendly industrial flue gas and dust purifying device. The device comprises a gas delivery end, a gas discharging end and a gas discharging pipe, a first meshed filtering layer is installed in the gas delivery end, a gas uniform distributor is installed on the right side of the gas delivery end, a cleaning chamber is installed on the right side of the gasuniform distributor, a water mist nozzle is installed on the top of the cleaning chamber, a waste water box is installed below the cleaning chamber, a cloth-type funnel is installed between the wastewater chamber and the cleaning chamber, a heat pipe is installed on the right of the cleaning chamber, a catalytic device is installed on the right side of the heat pipe, a second meshed filtering layer is installed on the right of the catalytic device, a discharging end is installed on the right of the second meshed filtering layer, and an organic gas absorbing recovery system is installed on theright of the discharging end. The device has the advantages that the structure is simple, the designing is reasonable, the use is convenient, the purifying effect is good, the device can be environmentally friendly used, and the demands of industrial flue gas purifying and recovering are well met.

The invention discloses an agricultural corn thresher with a dust removal function. The agricultural corn thresher comprises a thresher body; the bottom of the thresher body is fixedly connected withtwo bilateral supporting legs; the left side of the thresher body is fixedly connected with a discharging sliding plate; the right side of the thresher body is fixedly connected with a feeding slidingplate; and the inner surface of the right side of the feeding sliding plate is fixedly connected with two synchronous motors which are symmetric back and forth. The effect of absorbing dust generatedin a working process of corn threshing is achieved due to the arrangement of a dust remover, a dust storage box and a dust suction head, and then, the effect that the quality is controlled by workingstaff in the work process is guaranteed, so that the situation that the working staff suffer from lung diseases due to inhalation of a great deal of dust into lungs can be avoided, and furthermore, the effect of protecting the working staff is achieved; moreover, the effect of facilitating the observation of the working staff is achieved by collecting the dust in time, so that the effect of increasing the work efficiency is achieved.

The invention relates to the technical field of masks, in particular to a protective mask and a processing technology. The protective mask comprises a mask body and ear hanging parts, and the ear hanging parts are located on the two sides of the mask body. The mask body comprises a protective layer, a structural layer and a fiber layer which are sequentially arranged; the fiber layer is located onthe side close to a user, protective strips are arranged on the two sides of the fiber layer, and dust machine viruses in air can be better prevented from directly entering the mouth and the nose ofthe human body. The protective layer comprises a base material layer and a coating formed by interweaving nanofibers and submicron fibers, and can play a role in filtration and protection. The structural layer is formed by blending polypropylene fibers and nylon fibers added with microbial bactericides, and the sterilization effect can be improved. The fiber layer is blended fabric formed by interweaving bamboo fibers and bamboo charcoal fibers, the bamboo fibers have good air permeability and instantaneous water absorption, the bamboo charcoal fibers have the advantages of being good in comfort performance and moisture absorption performance, the fiber layer can be attached to the surface of the skin of a user, and the comfort performance of the mask is improved.

The invention relates to the technical field of oxidative degradation for water treatment, in particular to a rotary electrode degradation device. The device comprises a shell, a liquid inlet and a liquid outlet, wherein the liquid outlet is formed in the lower left end of the shell; the liquid inlet is formed in the upper right end of the shell; a center shaft is arranged in the center of the shell; the upper end of the center shaft is provided with a speed changer and a motor; the lower end of the center shaft is provided with symmetric electrode plates. The device disclosed by the invention has the advantages that the center shaft is additionally arranged in the shell, the electrode plates are arranged on the center shaft, and the motor rotates to drive the electrode plates to rotate, so that the electrode plates keep in a moving state, and are prevented from being settled; the device has the characteristics of convenience in use, simplicity in operation, good practicability, low cost and the like.

The invention provides air purification equipment for a kitchen. The air purification equipment comprises a cover plate and an HEPA filter layer; a group of fence plates are welded at the edge position of the rear end of the top of the cover plate; the bottom end face of a housing of a range hood is fixedly connected with a group of rubber corrugated telescopic sleeves; the bottom end faces of therubber corrugated telescopic sleeves are fixedly connected with a group of aluminum alloy square frames; and the left and right sides of the bottom end face of each aluminum alloy square frame are each connected with a group of handles. According to the air purification equipment provided by the invention, the bottom end face of the shell of the range hood is fixedly connected with one group of the rubber corrugated telescopic sleeves so that oily smoke can be well effectively sucked away along the rubber corrugated telescopic sleeves by the range hood by just pulling down the sleeves throughthe handles to shorten the distance between the rubber corrugated telescopic sleeves and a pot generating the oily smoke in a food cooking process, so that the problem that the oily smoke generated during cooking is hard to suck away by the range hood because the pot generating the oily smoke has a certain height distance from the range hood during use by people in real life is solved.