64results about How to "Lighten the burden of filtration" patented technology

The invention relates to the industry of water treatment, in particular to the depth-type filtration and purification of field drinking water. The invention discloses a method for filtering field water for drinking. Equipment for implementing the method comprises a filter element unit for filtration, a water pump device for pumping raw water, a germicidal lamp for sterilizing bacteria and viruses and a noncommercial power supply device, wherein the output circuit of the power supply device is connected with the germicidal lamp and the control circuit of the water pump device; the water pump device is connected to a raw water filtration and sterilization pipe formed by the filter element unit and an ultraviolet ray sterilizer. The equipment has the advantages of simple structure, convenient use, diversified water resources and capability for pretreatment, strong field environment suitability, applicability to emergency environments where accidents of natural disasters such as earthquake, flood, drought and the like occur, and contribution to the popularization and promotion of water purifiers.

The invention discloses a binding band type folding filer element which comprises a cylindrical folding filter element body, an upper sealing cover and a lower sealing cover, wherein the upper sealing cover is arranged at the upper end of the folding filter element body and bonded with the upper end part of the folding filter element body; the lower sealing cover is arranged at the lower end of the folding filter element body and bonded with the lower end part of the folding filter element body; a plurality of circles of porous binding bands are arranged on the cylindrical outer surface of the folding filter element; and the folding filter element body has a diffuse multi-pleat design which ensure that the filter element has a larger area filtering surface under the condition of the same volume. The binding bands are bundled on the cylindrical surface of the folding filter element body, thereby fixing the pleat layers of the folding filter element body, ensuring that the folding filter element body is not easy to deform and enhancing the structural strength of the folding filter element body, and moreover, the binding bands can also be used as a pre-filtering layer of the folding filter element body, thereby lightening the filtering burden of the folding filter element body, improving the treatment capacity of the folding filter element body, prolonging the service life of the filter element and reducing the investment and manpower cost.

The invention discloses a device applied to hemodialysis. The device comprises a liquid purifying assembly adopting a reverse osmosis membrane water purifying technology and a dialysate regeneration system and method combining with an adsorbent box body containing a specific adsorption material and/or a non-specific adsorption material, wherein the specific adsorption material in the adsorbent boxbody is mainly used for adsorption of urea in dialysis liquid and has not any chemical change in adsorption, and no ion accumulation is produced. The non-specific adsorption material in the adsorbentbox body is used for removing trace metal ions, creatinine, beta2M uric acid, trace organic substances and other substances in the dialysis liquid. The dialysis liquid is subjected to impurity removal through the adsorbent box body, then flows into the liquid purifying assembly and further is purified through a reverse osmosis membrane for follow-up circulation. The cost can be greatly reduced, water is saved, and the device is portable, small, exquisite and flexible to move and can simultaneously meet the demands of patients in hospitals and at home.

The invention provides a combined filter screen and a compressor with the same. The combined filter screen comprises a filter screen body with a columnar section, and an impurity removing part fixedly arranged at the outer periphery of the columnar section and absorbing chips filtered out from the filter screen body. The impurity removing part and the columnar section are matched to effectively remove impurities, so that the filter burden of the filter screen is reduced.

The invention relates to a track shot blasting device. The track shot blasting device comprises a shot blasting chamber; and a track is arranged in the shot blasting chamber, and is provided with a passing hole for enabling shot sand to pass through. The track shot blasting device further comprises a shot sand impurity removing mechanism and a material impurity removing mechanism. According to the track shot blasting device, the shot sand impurity removing mechanism can filter away waste shots, scales and the like in shots falling from a blanking hole, and the shots are fed in a shot sand separator and a shot blasting machine for recycling through an elevator, so that the power consumption of the shot blasting machine is reduced, the energy conservation is facilitated, and the workpiece treatment effect is guaranteed; and the track shot blasting device relieves the filter burden of a material filter mechanism, and guarantees the filter effect of the material filter mechanism. The material filter mechanism can filter away the waste shots, the scales and the like mixed in treated workpieces, shortens the treatment time in such subsequent procedures as cleaning, and reduces the production and maintenance costs.

The invention belongs to the technical field of riverway cleaning equipment, and particularly relates to a sewage primary filtering device. The sewage primary filtering device comprises a water discharging device, a filtering device and a spraying device, wherein the water discharging device comprises a plurality of sewage discharging pipes; all sewage discharging pipes are connected in series through a plurality of interception tee joints; the tail end of the last interception tee joint is connected with a downward bent bending pipe; the spraying device comprises a water collecting box; a water discharging pipe is inserted and connected into the lower right corner of the water collecting box; a water pump is connected onto the water discharging pipe; the filtering device comprises a mud discharging device, a water collecting plate and a sludge pool; the mud discharging device comprises a filtering box; the filtering box is positioned right under the sewage discharging pipes; the watercollecting plate is suspended right under the filtering box; the sludge pool is positioned at the lower left side of the water collecting plate; the water collecting box is positioned at the right lower side of the water collecting plate. The sewage primary filtering device can solve the problems that in the existing conventional mud-water separation process, the terminal filtering process is relatively slow; the filtering effect is relatively poor; the terminal filtering burden is relatively heavy.

The invention discloses a filtering and purifying device for radioactive industrial waste water, wherein the outer side of a sludge concentration tank is provided with a power switch which is electrically connected with a heating wire; a conveying groove is arranged at the bottom of the inner side of a sludge settling tank; the left side of the conveying groove is communicated with the sludge concentration tank through a drainage pipe; one side of the drainage pipe is provided with a gate valve, the top of the sludge settling tank is provided with a water inlet, the top side of the sludge settling tank is provided with a support frame, and the outer side of the support frame is welded with a guide cylinder; the device is used for flocculating and settling the industrial waste water throughthe sludge settling tank, filtering the impurities in the water through a filter screen, and filtering by using a reverse osmosis membrane to obtain pure water, the filtration burden of the reverse osmosis membrane is reduced, and the sludge is concentrated through the sludge concentration tank, facilitating the transportation and sealing of the sludge; the device performs reverse cleaning on thefilter screen and the reverse osmosis membrane by using the water injected by a second water pump, thereby improving the service life of the filter screen and reverse osmosis membrane.

The invention discloses an alkaline development plate punching waste water treating method and a development treating method of a planographic plate material, and relates to the technical field of a treating method and device for plate punching waste water after development during the plate manufacturing process in which an alkaline development liquid is used for development treatment of the planographic plate material. The method comprises the following steps: (1) electrolyzing alkaline development plate punching waste water at the anode part of an electrolyzer separated by a cation membrane through the effect of direct-current electricity, generating acid or metal ions, and neutralizing alkaline or alkaline salt, thus the alkaline salt and organic resin as well as coloring dye which are dissolved in the alkaline development plate punching waste water are precipitated to form sediments; (2) carrying out filtering treatment on the formed sediments; and (3) returning the clean water after filtering treatment to a development washing unit for recycling. The method has simple steps and is easy to operate, the treated waste water can reach the quality same with the fresh water, and can be maintained for use for a long cycle.

The invention relates to the water treatment industry, in particular to the aspect of deep filtration and purification of drinking water. The invention discloses a filtering and back-flushing method of a ceramic filter element of a water purifier. The pipeline of a water treatment device comprises a water path switcher and a ceramic filter element device controlled by the water path switcher; the water path switcher is provided with a back-flushing water discharge port; an inflow/outflow water switch port of a connection disk of the water path switcher is serially communicated in the pipeline of the water treatment device; an inflow/outflow water switch port of a controlled disk of the water path switcher is communicated with a water inlet and a water outlet of the controlled ceramic filter element device; a sealed switch interface is formed between the connection disk and the controlled disk, and related water switch ports are formed at corresponding equational switch positions respectively; and a filtering channel and a back-flushing channel of the controlled ceramic filter element device are formed through relative shift of the positions of the water switch ports on the connection disk and the controlled disk respectively. The invention has the advantages of effectively eliminating influence of carbon loss on the drinking water and prolonging the service life of the rear fine filter element, along with simple and practical structure, low cost and good filtering and back-flushing effect.

The invention relates to the technical field of sewage treatment in the aquatic product industry, in particular to an aquatic product ecological circulation method without wastewater discharge. A circulation system comprises a reservoir, a culture pond, a first-stage reaction pond and a second-stage reaction pond which are connected in series to form a loop, the reservoir is communicated with a self-purification pond through a water inlet pipe and a water outlet pipe, the self-purification pond is communicated with an ecological biological water purification pond through a pipeline, and a heatabsorption, heat preservation and ventilation film is arranged at the top of the ecological biological water purification pond. The circulation system actually comprises two sets of circulation subsystems, wherein one is physical and chemical filtration of circulating filtration formed by the reservoir, the culture pond, the first-stage reaction pond and the second-stage reaction pond, and the other one is biological self-purification filtration formed by the self-purification pond and the ecological biological water purification pond. The two subsystems operate in a crossed manner and do notinterfere with each other, and bait residues and biological corpses are removed through biological filtration, so that impurities in internal circulation are reduced, and the filtration burden is reduced.

The invention belongs to the technical field of sewage treatment and discloses a zero-discharge treatment process and device for printed circuit board developing wastewater. The treatment device is composed of a microfiltration device, a primary reverse osmosis device, a secondary reverse osmosis device, a sea water desalting device and an acidification-iron-carbon micro-electrolysis device. The device is adopted to treat printed circuit board developing wastewater mainly in a physical separation way and basically no agent is utilized in the whole process; the whole device is integrated by connecting the filtering devices in a series connection or parallel connection way, is capable of operating continuously and automatically, and has excellent economic benefit; and the treatment process is capable of realizing wastewater zero discharge and has excellent environmental protection benefit.

The invention relates to the technical field of filters, in particular to an environment-friendly oil filter which comprises a shell, the outer surface of the upper end of the shell is in threaded connection with a cover body, and an oil outlet is formed in the middle of the outer surface of the upper end of the cover body in a penetrating mode. According to the engine oil filter disclosed by the invention, a substance which is easily expanded by heating is arranged in a first air bag, and gas which is easily expanded in the first air bag expands by absorbing heat generated by entering engine oil to drive the first air bag to expand, so that a first push rod is pushed to move forwards, and the first push rod drives a filter plate to move to an oil inlet; the filter plate is arranged to filter large-particle impurities in engine oil entering from the oil inlet, so that the impurities in the engine oil can be filtered in a classified manner on the whole, an engine oil filter using single microporous filter paper as a filter material is avoided, the filter burden of the filter paper is reduced, the possibility of blockage in the shell is reduced, the service life of the oil filter is prolonged, and the overall practicability is improved.

The invention discloses a drug crushing device for pediatric nursing, and relates to the technical field of ceramic medical treatment apparatuses. The device comprises an air handling box, wherein a grinding device is mounted at the front side of the upper end of the air handling box; a pneumatic cyclone separating device is connected to the front side of the grinding device; the grinding device comprises a guide housing which is fixed to the front side of the upper end of the air handling box; a semispherical filtering net is mounted at a through hole in a fitting manner; a grinding ball is fixed to the lower end of a connecting rod; an air outlet tube is rotatably mounted at the inner rear side of the guide housing; the pneumatic cyclone separating device comprises a pneumatic cyclone barrel, a tapered barrel and an air exhausting tube; and tapered edible sweet wrapper is arranged close to the inner sidewall of the tapered barrel. The device has the beneficial effects that air is blown through high pressure in order to remove the surface, so that the waste is reduced, and the next drug crushing operation is conveniently carried out; and meanwhile, the device is matched with the pneumatic cyclone separating device, so that drug particles can be quickly greatly separated and collected; and the edible sweet wrapper is damaged a little and achieves drug collection.

The invention discloses a duplex composite filter material for haze-proof masks. The duplex composite filter material comprises a looped fabric filter layer (1), a non-woven fabric filter layer (2), and a moisture permeable fabric layer (3), wherein the looped fabric filter layer (1) is positioned at the outer layer of the compound filter material; the non-woven fabric filter layer (2) is positioned between the looped fabric filter layer (1) and the moisture permeable fabric layer (3); the moisture permeable fabric layer (3) is positioned at the inner layer of the compound filter material. The duplex composite filter material disclosed by the invention not only can effectively solve the problem that because a conventional dustproof mask is large in pore diameter and cannot resist micron-sized dust particles so as to achieve a dustproof function, but also can effectively solve the problems that when non-woven fabrics are adopted to make masks, usually the thickness is increased, a multi-layer manner is adopted, or compound hot pressing is performed on non-woven fabrics and other filter materials, such as activated carbon, so as to form masks, so that exhalant CO2 and water cannot scatter, and are gathered in dead cavities; therefore, human bodies can be hurt, and the masks are not suitable for long-term use.

The invention discloses a preparation method of kudzuvine root essence electuary. The preparation method specifically comprises the following steps: S1, selecting and cleaning raw materials; S2, crushing and pulping the raw materials; S3, performing enzymolysis and filtration; S4, blending and drying functional components; and S5, performing post-treatment processing. The invention relates to thetechnical field of preparation of the kudzuvine root essence electuary. The preparation method of the kudzuvine root essence electuary can realize the fusion of enzymolysis and filtration treatment to reduce the production process, the method well achieves the aim of quickly and efficiently producing the kudzuvine root essence electuary and realizes the full separation of waste impurities, enzymeliquid and effective components through one-time filtration, the preparation process is simple, the production efficiency is high, production personnel do not need to spend a large amount of time onenzymolysis and filtration treatment, the workload of the production personnel is greatly reduced, and the working efficiency of the production personnel is improved, thereby greatly facilitating theproduction of the kudzuvine root essence electuary for the production personnel.

The invention discloses an efficient and environment-friendly gravitational dust removal and recovery system for dust in the putty powder production process, and belongs to the technical field of putty powder production, the efficient and environment-friendly gravitational dust removal and recovery system comprises a treatment box, one side of the treatment box is communicated with an air inlet combination, the other side of the treatment box is communicated with a treatment combination, and the inner wall of the treatment box is connected with a plurality of recovery combinations; the multiple recovery assemblies each comprise a filter frame, an inclined plate and a brush, the inner wall of the treatment box is connected with the inclined plate, the top end of the inclined plate is connected with the inclined filter frame with a filter screen, the side face of the filter frame is connected with two linear motors with moving parts, and the two linear motors are connected with the brush. A brush used for cleaning the filter screen is connected between moving parts of the two linear motors, and a material receiving box used for receiving materials is arranged on one side of the inclined plate. The efficient and environment-friendly gravitational dust removal and recovery system for dust in the putty powder production process not only can filter and treat dust, but also can remove dust and exhaust air.

The invention discloses a centrifugal type preposed filtering device. The filtering device comprises a top plate, and a bottom plate and side plates which are fixedly connected with the top plate. The filtering device also comprises a filtering unit, wherein the filtering unit comprises blade hole plates, blind plates and Z-shaped groove plates; one side edge of each blade hole plate coincides with one edge of the corresponding blind plate, the lower end part of the coinciding edge of the blind plate is connected with one Z-shaped groove plate through a rivet, and the other side edge of the blade hole plate is connected with another blind plate adjacent to the blind plate; the blind plates and the blade hole plates are sequentially connected to form an M-shaped structure. Since the filtering device is made from galvanized plates or stainless steel plates and the distribution of filtering holes conforms to the gas flowing principle, the filtering device has the advantages of being high in purification efficiency, free form replacement of filtering elements, low in operation resistance and convenient to clean and maintain.

The invention provides a mechanical submerged arc furnace dust removal device which comprises a shell a, a cover a, a cover b, a circular truncated cone, a hole, an eccentric hole, a shaft a, a hub, asliding shaft, a spring, a sliding barrel, a sealing barrel, a packing barrel, flexible fan blades, an air inlet pipe and an air outlet pipe. The cover a is mounted on one side of the shell a. The cover b is mounted on the other side of the shell a; the circular truncated cone is mounted on the cover b; a hole is formed in the cover b; smoke-containing furnace air is blown to the flexible fan blades through an air inlet pipe to drive the flexible fan blades to rotate. The flexible fan blades drive the packing barrel to rotate; the packing barrel drives the sealing barrel to rotate around thecircular truncated cone; clean air filtered by the filter holes of the packing barrel is discharged from the air outlet pipe through the holes; when the flexible fan blades rotate, the sliding shaft and the spring rotate around the shaft a, the spring is continuously compressed and loosened, the sealing barrel is stressed unevenly, and the sealing barrel and the packing barrel vibrate ceaselesslyduring rotation so that particles attached to filter holes of the packing barrel are shaken off easily.