79results about "Stationary filtering element filters" patented technology

RO membranes using chlorinated water as a feed stream maybe protected from damage by the chlorine with a protective layer including reactive nitrogen which forms chloromines on the surface of the membrane that reduce chlorine penetration. This protective layer also provides substantial anti-fouling capabilities, whether used with a chlorinated or unchlorinated feed stream because the chloramines are anti-bacterial. Although chlorine is lost in use, the anti-fouling layer or coating can be recharged with additional chlorine without damaging the discrimination layer. The anti-fouling layer or coating may be advantageously used with Thin film composite, TFC, membranes for use in forward and reverse osmosis may include nanoparticles, monohydrolyzed and/or di-hydrolyzed TMC, and/or alkaline earth alkaline metal complexes or other additives.

An oil filter for an internal combustion engine with a cup-shaped housing that is releasably connectable to a receiving head. The housing has a first interlocking element that extends across at least a portion of the outer circumference of the housing and is interrupted by at least one axially extending recess. The filter element has a liquid-tight canister provided on its outer surface with second interlocking elements, which fit into the recesses of corresponding first interlocking elements when the filter element is installed in the housing.

A protector for the inlet into a sewer system includes a straight or annular, porous tubular casing for placing on or around the periphery of a sewer grate; a skirt extending inwardly or outwardly from the bottom of the casing for overlapping the side edges of a sewer opening so the grate retains the protector in the use position; and a filler in the casing for maintaining the casing in an expanded condition, at least one of the casing, the skirt and the filler being permeable to water and impermeable to contaminants, whereby water can flow into the system while contaminants are blocked.

Provided is a fuel cartridge in which a liquid fuel is not lost in storage, in which a follower is prevented from being deformed and separating even when heavy vibration is exerted onto the fuel cartridge to make it possible to stably supply the liquid fuel directly to a fuel cell main body, in which in particular, even when a volume of a liquid fuel is big and a cartridge diameter is large, the liquid fuel can stably be supplied directly to a fuel cell main body and which is suited to a small-sized fuel cell. It is a fuel cartridge detachably connected with a fuel cell main body and assumes the following constitution; that is, the fuel cartridge is equipped with a fuel-storing vessel 10 for storing a liquid fuel, a fuel discharge part 11 and a follower 20 which seals the liquid fuel and moves as the liquid fuel is consumed at a rear end part of the liquid fuel; and the follower 20 is provided with a follower auxiliary member 21 and a cap member 22 both of which have no fluidity and are insoluble in the liquid fuel.

A fluid filter includes a housing having a tapping plate with a first aperture. A center tube is arranged in the housing proximate to the tapping plate. The center tube includes a second aperture. An elastomeric valve assembly is arranged between the center tube and the tapping plate. The valve assembly comprises a separate two-piece relief valve and anti-drain back valve. The anti-drain back valve is arranged adjacent to the first aperture for selectively blocking the first aperture to prevent fluid from exiting in the side of the filter during engine shut down. The relief valve is arranged adjacent to the second aperture for selectively blocking the second aperture to permit fluid to flow past the relief valve during high differential pressure conditions such as cold starts and plugged filter conditions.

A method of processing a return oil-based drilling fluid includes centrifuging a primarily fluids phase at a first speed and separating the primarily fluids phase into a first effluent and a first residual, centrifuging the first effluent at a second speed and separating the first effluent into a second effluent and a second residual, and centrifuging the second effluent at a third speed and separating the second effluent into a third effluent and a third residual. A surfactant, a polymer, combinations of surfactant(s) and polymer(s) and/or a wash water may be added to one or more of the return oil-based drilling fluid, the primarily fluids phase, the primarily solids phase, the first effluent, the second effluent, and the third effluent.

This disclosure concerns a static oil/water separation chamber that is installed in a well extending to an underaround production formation containing hydrocarbon oil and water. The separation chamber has an inlet for receiving well fluid from a section below the separation chamber and two outlets. One outlet discharges a water-enriched component into a discharge well section, and the other outlet produces an oil-enriched component. The height of the separation chamber is larger than the thickness of the dispersion band that is formed under normal operating conditions.

A wastewater treatment method and apparatus including a denitrification (anoxic) chamber for denitrifying wastewater, an aeration basin with Bio-Wheel for aerating the wastewater, and a membrane device in which sludge particles are separated out of the wastewater, leaving clean discharge water and reusable sludge. Sludge from the membrane chamber floor is sent back to the aeration basin or denitrification chamber or both. Excess sludge is wasted or held for further processing. Preferably, the method and apparatus facilitate both activated sludge and fixed film processes.

An oil/water separator tank having intake, discharge and vent fittings is conditioned for in-situ cleaning of the oil separator plate stacks positioned therein by selective opening of manual valves connected to each of such fittings. When so conditioned by opening of the manual valves, the in-situ cleaning is performed during repeated operational phases under automated control of solenoid operated and motor driven valves through which a plurality of sequential operational steps are performed, consisting of (a) low pressure air injected into an air sparging array within the separator tank, (b) supply of potable water into a mixing tank; (c) mixing of the potable water with the cleaning agent within the mixing tank; (d) introduction of the cleaning agent after the mixing thereof into the separator tank to enhance in-situ cleaning by dispersing the low pressure air from the air sparging array; and (e) drainage of collected waste oil from the separator tank into a waste oil tank.

A water disinfection delivery treatment system first filters the supply by a particle and then a carbon filter. The partially treated flow is split in two and a first part passes through a first cutoff valve and is fed into a disinfection (iodine) chamber, filter or feeder via a flow restricter. The chamber output passes through a second solenoid driven cutoff valve. The second part is fed to a third cutoff valve and this valve's output is summed with the second valve's output and then fed into a holding tank. The tank retain's a volume such that the water remains therein for at least a period sufficient to permit a minimum 3 log reduction of pathogenic microbes. A final carbon filter is downstream of the tank as is a meter and dispenser. A method is also provided for delivering potable drinking water.

Methods and devices for isolating nucleic acids from a mixture containing such nucleic acids and extraneous matter are provided. In one embodiment, the method of the invention comprises passing the mixture through a glass frit under conditions effective to separate the nucleic acids from the extraneous matter. In a more specific embodiment, the glass frit is a sintered glass frit.

The invention discloses industrial acidic sewage treatment equipment. The treatment equipment comprises a sewage filtering tank, a sewage neutralization tank, a sewage reaction tank and an impurity collection tank, wherein a filter screen is arranged in the sewage filtering tank, a brush roller is arranged at the upper part of the filter screen, and the brush roller is connected with a pushing mechanism. The brush roller can be pushed by the pushing mechanism to move in a moving groove, so impurities on the filter screen are removed and cleaned into the impurity collecting tank; sewage can bepumped into the sewage neutralization tank through a first pump, stirring blades are driven by a stirring motor to stir the sewage, and a chemical pumping cylinder can be driven by the stirring motorto work at the same time, so a chemical in a chemical tank is pumped into the sewage neutralization tank to be neutralized with the sewage; and the sewage can be pumped into the sewage reaction tank again for a reaction through the second pump. The equipment of the invention has the advantages of simplicity and convenience in sewage treatment, capability of ensuring that sewage meets neutralization requirements and capability of automatically cleaning and filtering impurities, and is mainly used for sewage treatment.

The invention discloses a silicon carbide foamed ceramic, and a liquid metal filter produced therefrom. The silicon carbide foamed ceramic is produced through the following steps: performing a hydrosilylation reaction on polycarbosilane and vinyl group-containing silane to synthesize thermosetting polycarbosilane, performing impregnation by using organic foam as a template to obtain an organic foam preform containing the thermosetting polycarbosilane, performing heat treatment on the foam preform to achieve solvent removal and polycarbosilane cross-linking and solidifying, and finally carryingout high-temperature pyrolysis to obtain the silicon carbide foamed ceramic. The silicon carbide foamed ceramic has characteristics of high strength, excellent temperature resistance, excellent thermal shock resistance and excellent heat conduction performance, and has great application values in the filtration of molten metal.

The present invention discloses an ecological garden rainwater cyclic utilization system. The ecological garden rainwater cyclic utilization system comprises a water pool, a right outer wall of an inserted rod is in clearance fit with a right upper inner wall of the water pool, a left middle inner wall of a box body and a left middle inner wall of a spring, a push block sleeve the right outer wallof the inserted rod, a right end of the push block is attached to a left end of the spring, and a right end of the spring is attached to a right inner wall of the box body. In the ecological garden rainwater cyclic utilization system, a filter plate is fixed in a support plate, so that the filter plate can be rapidly disassembled, problems that a filtering structure on the rainwater cyclic utilization system mostly adopts bolts for connection and is time and effort-wasting to disassembly and change are solved, a sliding rod drives a scraping plate to move left and right to clean filterable debris on the filter plate to prevent the filter plate from blocking up, and problems that in the ecological garden cyclic system, the filterable debris on the filter plate cannot be timely cleaned, thefilter plate is blocked up, and the cyclic system is paralyzed are solved.

The invention relates to the technical field of sample filtration for instrumental analysis and provides a sample filter device for instrumental analysis. The sample filter device comprises a solutionfilter chamber which comprises an external cylindrical shell, a cylindrical filter barrel is embedded in the external cylindrical shell, and supporting columns are arranged on the inner bottom face of the external cylindrical shell. The upper end of the solution filter chamber is connected with a seal cover, a rotating rod is mounted in the middle of the lower side of the seal cover, stirring blades are mounted at the tail end of the rotating rod, and a rocker is arranged in the middle of the upper side of the seal cover. A pressurizing air cylinder is mounted at the upper end of a supportingplate which is mounted on the lower side wall of the solution filter chamber. By arrangement of the two-layer solution filter chamber, convenience in thorough filtration of liquid is achieved; by arrangement of the stirring blades and the rotating rod, impurity precipitation and attachment are avoided; by arrangement of the pressurizing air cylinder, the filter speed is increased. The sample filter device is simple in structure, capable of filtering instrumental analysis samples, high in filter speed and great in filter effect.

A filter element to be inserted into a filter housing, has a filter medium (9) with a rim (10), wherein the rim (10) is connected to an injection-molded frame (11) or at least one injection-molded frame element (1), providing a flexibly bendable filter element using a frame made of plastic attached by injection molding, wherein the frame (11) or at least one frame element (1) is made of plastics of different hardnesses in alternation in at least one extension direction (6), such that the filter element can be bent flexibly at least in part by deforming the filter medium (9) and the frame (11) or frame element (1).

The invention discloses a staggered basket type filter, which comprises a shell, a water inlet, a water outlet, a basket type filter cartridge, and a connecting ring. One side of the shell is provided with the water inlet, and the other side is provided with the water outlet. The connecting ring is connected to the inner wall of the shell, and the filter cartridge is connected below the connecting ring. The water inlet and the water outlet are in staggered arrangement in height. The water inlet is disposed below the connecting ring, and the water outlet is arranged over the connecting ring. The bottom of the filter cartridge is provided with a sewage discharge outlet. During use of the staggered basket type filter provided by the invention, a to-be-filtered liquid flows into the shell from the water inlet, is filtered by the filter cartridge in the space between the filter cartridge outer wall and the shell inner wall, then flows into the inner cavity of the filter cartridge, and then flows upward to outflow through the water outlet. Thus, the solid impurities in the filtered liquid can be discharged out of the sewage discharge outlet very conveniently after depositing in the space between the filter cartridge outer wall and the shell inner wall. Therefore, with no need for frequent disassembly of the filter cartridge during usual use, the filter cartridge cleaning requirement can be satisfied, and normal production is ensured.

A method of removing a filtrate storage bottle from a water bath includes inserting at least two finger underneath a radially protruding lip of a filtrate storage bottle sealing cap and raising the at least two fingers to lift the bottle from the water bath. A side wall portion of the filtrate storage bottle sealing cap is smaller in perimeter than a circle surrounding the radially protruding lip. The cap creates a liquid tight seal with the filtrate storage bottle.

The invention belongs to the water purifying field used for field fight foot soldiers, and relates to an individual soldier water purifier which applies composite nano water purifying material and can completely remove heavy metal, organic matters, bacteria and virus. The individual soldier water purifier consists of a bottle cap (201) provided with internal thread, a filter element (202) and a bottle body (203) having a bottle mouth (204). The shapes of the composite nano water purifying material include lamellar circular shape, curve tube shape and flakiness; according to the weight percentage, the composite nano water purifying material comprises the main components: 35-60% of oxidized-aluminium hydroxide, 15-35% of glass fiber and 15-25% of cellulose, wherein, the grain diameter of the oxidized-aluminium hydroxide is 20-60 nanometers, and the specific surface area is 360-800m<2>/g. The individual soldier water purifier has strong removing capability for non-purified water, and the advantages of high purifying level and efficiency, long service life and large saturation. The applied composite nano water purifying material can be reused, is simple to regenerate, and has no secondary pollution.

The invention provides an improved single-side folding screen filter plate. The improved single-side folding screen filter plate comprises a base plate, a hole plate, a middle support screen and a filter screen, wherein the base plate is a filter plate body; a liquid outlet end is arranged at one end of the base plate; a clean liquid cavity is formed in the other end of the base plate; the clean liquid cavity is a concave cavity; support plates are arranged at the upper periphery of the concave cavity; N support ribs are arranged at the bottom in the concave cavity of the clean liquid cavity; the hole plate is paved to cover the clean liquid cavity and then is connected with the support plates and the support ribs; the middle support screen is folded to pave in a corrugate shape to cover the hole plate and the support plates and then is connected with the hole plate and the support plates; the filter screen is folded in the corrugate shape, is matched with the corrugate shape of the middle support screen and is connected with the support plate to form the filter plate, the middle support screen is paved with the filter screen; the filter plate is made of a stainless steel material; the filter plate is applicable to various industries and fields and simple to manufacture; products are high in filtering precision and long in service life; the filter screen is simple to replace; the base plate can be reused; the replaced filter screen can be recycled and regenerated, and thus the circular economy implemented and a foundation is layed for implementing standardization of the field.

The invention provides a water-saving irrigation system with a water source filtering device. According to the technical scheme, the water-saving irrigation system is composed of a plurality of planting beds, a sediment filtering trough, a filtering screen, a water suction pump, a water source purifying device, an electric control box and an irrigation pipe set. All planting beds are further provided with accumulated water troughs and accumulated water output pipes. The filtering screen is further arranged on the sediment filtering trough. The water suction pump is further provided with an accumulated water extraction pipe and an accumulated water conveying pipe. The water source purifying device is further provided with a usable water output pipe, and the irrigation pipe set is further provided with a plurality of drip irrigation pipes. The water-saving irrigation system is provided with the planting beds, the accumulated water troughs are used for collecting accumulated water which remains after long-time irrigation, and sediment in accumulated water is filtered through conveying of pipelines and the provided sediment filtering device, so that it is guaranteed that usable water enters the water source purifying device to be further filtered and purified. Purified water sources are used for irrigation of the planting beds again, and therefore the set of complete water-saving irrigation system is formed. The utilization rate of the water resource is improved.

The invention relates to a water tank of a water-jet loom, comprising a tank body, wherein the tank body is provided with a water inlet and a water outlet; one part in the tank body, which is close to the water inlet, is provided with a first filtering net; the first filtering net is in an interlayer structure and is internally filled with an adsorbing substance; the first filtering net is fixedly arranged inside the tank body through glue; one part in the tank body, which is close to the water outlet, is fixedly provided with a second filtering net; the second filtering net is an active carbon filtering net; and the heights and the widths of the first filtering net, the second filtering net and the tank body are the same. The water tank of the water-jet loom can filter impurities which are visible and invisible in the water, so that the good water quality is ensured, the nozzle of the water-jet loom is not blocked, and the quality of textiles is improved.

The invention discloses a livestock farm with excrement transiting capacity and an excrement transiting method, and belongs to the technical field of livestock farming. The technical scheme of the livestock farm is as follows: the livestock farm comprises an excrement collecting pool, a conveying packing auger, a transition pool and a wall-striding packing auger, wherein one end of the conveying packing auger is arranged in the excrement collecting pool, and the other end of the conveying packing auger exposes on the ground; the transition pool is formed close to a field wall in a field; and the wall-striding packing auger strides across the field wall, one end of the wall-striding packing auger is arranged in the transition pool, and the other end of the wall-striding packing auger is located outside the field. The livestock farm and the excrement transiting method have the beneficial effects that the transiting efficiency is high, the occurrence probability of bio-safety problems islow, the time and the labor are saved, and the transportation cost is low.

The invention discloses a filtering device for chemical waste treatment, and belongs to the technical field of chemical machinery. The filtering device for the chemical water treatment comprises a bracket, a filtering tank, a filtering screen and an anti-blockage mechanism, wherein the anti-blockage mechanism comprises an aerostatic press and an air delivery pipe; the air delivery pipe comprises an air inlet part and a working pipe; the aerostatic press is communicated with the air inlet part; the working pipe is helically distributed and horizontally arranged; the working pipe is located below the filtering screen and approaches the filtering screen; the working pipe comprises an inner end and an outer end; the inner end is communicated with the air delivery pipe; the working pipe is provided with multiple air outlets which are open upwards obliquely. Air is delivered into the working pipe by using the aerostatic press and is exhausted via the air outlets; as the multiple air outletsare obliquely arranged and the working pipe is helical, chemical water above the working pipe is enabled to do helical ascending motion; the fact that a substance which is larger in particle remainingon the filtering screen cause blockage is prevented; the filtering efficiency can be greatly improved and the filtering effect is improved.