2000 results about "Filter media" patented technology

A regenerative filter that includes a filter housing having inlet and outlet zones; a fluid path provided between the inlet and outlet zones; a plurality of filter elements each having an outer surface filter media applied thereto and functioning to filter particulate or contaminants from the fluid path; and a tube sheet that is supported across the filter housing, that is disposed just before the outlet zone and that provides the support for the plurality of filter elements. The plurality of filter elements are disposed in an array and includes bridging members or elements that connect between adjacent filter elements, and that forms with the filter elements, a closed interstitial space between adjacent filter elements for liquid flow; a nanoscale barrier on interior surfaces, including that of the regenerative media itself, providing a mechanism to disrupt the cell wall of microscopic viruses and organisms.

A regenerative filter that includes a filter housing having inlet and outlet zones; a fluid path provided between the inlet and outlet zones; a plurality of filter elements each having an outer surface filter media applied thereto and functioning to filter particulate or contaminants from the fluid path; and a tube sheet that is supported across the filter housing, that is disposed just before the outlet zone and that provides the support for the plurality of filter elements. The plurality of filter elements are disposed in an array and includes bridging members or elements that connect between adjacent filter elements, and that forms with the filter elements, a closed interstitial space between adjacent filter elements for liquid flow; a nanoscale barrier on interior surfaces, including that of the regenerative media itself, providing a mechanism to disrupt the cell wall of microscopic viruses and organisms.

A water filter system includes an upper chamber removably coupled with a lower chamber. In implementations the lower chamber has a sidewall and a rim wider than the sidewall. A filter medium filters water from the upper to the lower chamber. A seal couples between the chambers and has a circular cross-section and a gap receiving a portion of the sidewall. The seal may also have a cavity receiving the rim. The seal includes one or more arced flaps contacting the upper chamber, a tip of each arced flap defining a circular inner opening of the seal. The seal includes one or more first barbs contacting the upper chamber, each first barb forming a circle. The seal includes one or more second barbs contacting the lower chamber, each second barb forming a circle.

A regenerative filter that includes a filter housing having inlet and outlet zones; a fluid path provided between the inlet and outlet zones; a plurality of filter elements each having an outer surface filter media applied thereto and functioning to filter particulate or contaminants from the fluid path. The filter elements are disposed in an monolithic array. An inlet port arrangement is disposed at the filter housing leading to the inlet zone and is constructed and arranged to direct the fluid path into the filter housing in a manner so as to maintain a controlled turbulence at the inlet zone. The inlet port arrangement comprises a pair of inlet ports that are arranged in juxtaposition at the inlet zone and each having one end where the fluid flow enters. Embodiments that are considered as falling under the scope of the present invention include 1. Single inlet / two or more outlets; 2. Two or more inlets / single outlet, or 3. Two or more inlets and two or more outlets.

The invention relates to a ring filter element with a filter medium body in the form of a bellows, which has at least one radially internal pleat spreading section adjacent to an open end disk. The open end disk has at least one recess. The recess and the pleat spreading section are arranged in overlapping positions. At the axial end facing away from the open end disk, the filter medium body is sealed by a closed end disk. When the ring filter element is used in a filter device, an engagement element engages the pleat spreading section and / or the recess. The engagement element can be formed on a filter housing or on another ring filter element of the filter device. Thus, an angular position of the ring filter element relative to the filter housing or the other ring filter element is fixed.

An underdrain filtered water collection system includes: a pair of opposing drainpipes, each drainpipe having a plurality of collection drains; and a diffuser screen. The diffuser screen can slide within an outlet in each of the collection drains. A diffuser screen for a pressure vessel containing filter media includes: a screen pipe; a solid plate coupled to a base of the screen pipe; and a winged diffuser arranged around an outer circumference of the solid plate. The winged diffuser includes a plurality of foldable wings. The screen pipe includes a mesh screen having preconfigured interstices therethrough. Feed water flows through the screen pipe where it is directed by an inner surface of the solid plate to flow in a diffused flow through the interstices of the mesh screen and the wings.

The invention belongs to the technical field of reaction crystallization type solid-liquid separation, and particularly relates to filtering equipment with a reaction aging crystallization function. The device comprises a reaction kettle and a centrifugal filter disc which is located in the reaction kettle and can rotate and ascend and descend, and a reserved channel for materials to ascend and filter cakes to descend is formed between the disc edge of the centrifugal filter disc and the inner wall of the reaction kettle; the upper disc surface of the centrifugal filter disc is provided with a filter surface, a kettle cavity of the reaction kettle is communicated with a liquid accumulation cavity positioned in the centrifugal filter disc through the filter surface, the liquid accumulation cavity is communicated with a mother liquor outlet through a transition channel, and a slag outlet for discharging filter cakes is formed in the bottom of the reaction kettle. Through vertical reciprocating motion of the filter disc and multi-dimensional motion of rotation, rapid filtering and centrifugal discharging functions of materials needing reaction, aging and crystallization operation are achieved, smoothness of a filtering medium channel can be effectively guaranteed, and the effects of being simple in structure and compact in structure are achieved.

A filter system adapted for use with a paint spray booth having an inlet duct and an exhaust duct includes at least one movable cart formed with a housing having one or more surfaces for providing a housing inlet and an housing outlet, at least one filter media element arranged within the housing and positioned between the housing inlet and the housing outlet, and at least one movable device having at least one sealing element. The filter system further includes an inlet hood securely attached to the inlet duct and an outlet hood securely attached to the exhaust duct. The at least one movable cart is configured to move for making contact with the at least one seal between the housing inlet and the inlet hood, and between the housing outlet and the outlet hood.

Filter media for use in liquid filters and liquid filters are provided that include a substrate, such as a porous membrane, and nanoparticles incorporated into the substrate. The nanoparticles may comprise nanoparticles, nanofibers or mini fibers that have at least one dimension less than about 20 microns. The nanoparticles are bonded to the fibers within the substrate and are dispersed "in depth" within the substrate, which improves the performance characteristics of the material for a number of different applications. For example, the nanoparticles increase the overall surface area within the substrate, which may increase its filtration efficiency and allow for the capture of submicron contaminants without significantly compromising other factors, such as bubble point or through-put across the filter.

The invention relates to the technical field of mineralized filter elements, particularly provides a magnesium-containing mineralized filter material, a mineralized filter element and a preparation method of the mineralized filter element, and aims at solving the problem that the service life of the magnesium mineralized filter element is shortened due to the fact that the magnesium ion release speed of the existing magnesium mineralized filter element is too high. The magnesium-containing mineralized filter material comprises modified magnesium ore and modified dolomite, wherein the mass ratio of the modified magnesium ore to the modified dolomite is (0.25-6): 1. By controlling the ratio of the modified magnesium ore to the modified dolomite, the precipitation concentration and speed of magnesium ions in water can be controlled, so that the concentration of the magnesium ions in the water can meet user requirements, and the service life of a magnesium mineralization filter element can be prolonged.

Apparatuses including coalescing filter are discussed and shown. The coalescing filter can optionally include: a filter media; a central core defining a central cavity, the central core positioned within the filter media; a first end cap; a coupling assembly attached to and extending outward from the first end cap, wherein the coupling assembly is configured to couple with a housing to position the coalescing filter within the housing; and a second end cap opposing the first end cap.

A gas filter system including an outer filter element having a first filter medium arranged between a first end cap and a second end cap, and an inner filter element having a second filter medium arranged between a third end cap and a fourth end cap, wherein the first, third and fourth end caps are open, wherein the outer filter element is closed at the second end cap, wherein the first filter medium is arrangeable to surround the second filter medium, such that the outer filter element is sealed against the inner filter element between the second end cap and the fourth end cap.

A septic tank filter system includes a tank. The tank includes an inlet and an outlet, wherein the outlet is disposed on the tank below the inlet to enable a flow of wastewater to be gravity fed from the inlet to the outlet. A filter is positioned in the tank. The filter includes a frame. A filter media is disposed on the frame. The filter media is operable to filter the wastewater of waste material as the wastewater passes therethrough. An overflow opening is disposed on a top portion of the filter. A bottom of the overflow opening is located above the tank outlet and below the tank inlet. When the filter media is not clogged, a level of the wastewater remains below the overflow opening. When the filter media is clogged, the level of the wastewater rises until the wastewater flows over the overflow opening.

A filter media comprises a first fiber layer and a second fiber layer positioned downstream of the first fiber layer. The first fiber layer has a first geometric mean fiber diameter of less than 1 μm such that the geometric standard deviation of fiber diameter is greater than 2. The second fiber layer has a second geometric mean fiber diameter of less than 1 μm such that the geometric standard deviation of fiber diameter is less than 2.

The invention relates to a filter element (100) for a separation element (200) for separating at least one liquid from a fluid, in particular a gaseous fluid, having a hollow cylindrical filter medium body (102) which has an end plate (120) with a fluid inlet opening (108) on a first end face (104), wherein the separation element (200) has at least one adapter (10) for receiving the filter element (100). The end plate (120) has a part of a sealing device (16) which can be brought together in an axial direction (50) and which is designed to correspond to another part of the sealing device (16) on the at least one adapter (10). The end plate (120) further has at least a part of a bayonet connection device (30) which is designed to correspond to another part of the bayonet connection device (30) on the at least one adapter (10). The invention further relates to a separation element (200) for a separation device (300) and a separation device (300).

To provide a compaction state control method of a filter material layer which changes an index of the end of discharge of compaction water according to the state of a filter material, and thereby forming a filter material layer in a state optimal for filtration treatment.SOLUTION: A filtration device for performing compaction treatment of discharging compaction water stored in a filtration tank before filtration treatment from below, and compacting a filter material layer by a dynamic pressure at the time of discharge includes: previously setting a foundation discharge value as a discrimination index of a compaction state; gradually setting a coefficient corresponding to a duration time of an immediately-preceding filtration treatment step; calculating a coefficient from an immediately-preceding filtration duration time; calculating a reference discharge value by multiplexing the foundation discharge value by the coefficient; discriminating that the compaction state is satisfactory, and finishing the compaction water discharge step, when at least one discharge value of the discharge speed and the discharge flow rate of the compaction water reaches a reference discharge value; and discriminating that the compaction state is not satisfactory, and shifting the step to a compaction water storage step again, and thereby improving filtration treatment efficiency, when the discharge value does not reach the reference discharge value.SELECTED DRAWING: Figure 3

The invention relates to the technical field of industrial water treatment equipment, and discloses an intelligent flushing self-cleaning filter system for industrial water treatment. A dynamic suspended matter monitoring module of the system collects three-dimensional distribution data of deposits on the surface of a filtering medium in real time, and mixed deposition characteristics of suspended solids and oil stains are recognized through a multispectral imaging technology; the differential pressure trigger control module establishes a mapping relation between sediment thickness and fluid resistance according to the three-dimensional distribution data, and generates a cleaning trigger instruction when the real-time differential pressure data reaches a dynamic threshold interval; the spiral trajectory planning module analyzes the cleaning trigger instruction, and generates a composite motion trajectory containing a rotation angular velocity and an axial displacement rate in combination with the current position of a suction nozzle and a filter screen topological structure; the multi-mode flushing execution module synchronously adjusts torque output of a hydraulic motor and linear displacement of a piston cylinder based on the composite motion trail, so that a suction nozzle covers the whole effective filtering area of a filter screen along a spiral path.

Systems and methods involving filtration are disclosed. A filtration device includes a first opening, a second opening, and a vortical filter, the vortical filter comprising a rib. The rib may be configured to generate vortices to keep the filtered particles in suspension and to provide a flow path extending from the first opening to the second opening. The filtration device may filter particle from the fluid by cross-flow filtration along the flow path across a filter media surrounding at least a portion of the circumference of the vortical filter. The filtration device may be effective at filters greater than 90% of microplastics mass when post-filtered to 10 microns when measured using the method of either of Example 1 or Example 2. The filtration device may be effective at filtering particles from the fluid at high flow speeds, such as flow speeds greater than 50 cm / sec or greater than 100 cm / sec.

Systems and methods involving filtration are disclosed. A filtration device includes a first opening, a second opening, and a vortical filter, the vortical filter comprising a rib. The rib may be configured to generate vortices to keep the filtered particles in suspension and to provide a flow path extending from the first opening to the second opening. The filtration device may filter particle from the fluid by cross-flow filtration along the flow path across a filter media surrounding at least a portion of the circumference of the vortical filter. The filtration device may be effective at filters greater than 90% of microplastics by mass when post-filtered to 10 microns when measured using the method of either of Example 1 or Example 2. The filtration device may be effective at filtering particles from the fluid at high flow speeds, such as flow speeds greater than 50 cm / sec or greater than 100 cm / sec.

An underdrain filtered water collection system includes: a pair of opposing drainpipes, each drainpipe having a plurality of collection drains; and a diffuser screen. The diffuser screen can slide within an outlet in each of the collection drains. A diffuser screen for a pressure vessel containing filter media includes: a screen pipe; a solid plate coupled to a base of the screen pipe; and a winged diffuser arranged around an outer circumference of the solid plate. The winged diffuser includes a plurality of foldable wings. The screen pipe includes a mesh screen having preconfigured interstices therethrough. Feed water flows through the screen pipe where it is directed by an inner surface of the solid plate to flow in a diffused flow through the interstices of the mesh screen and the wings.

The invention relates to a flat filter element and an air filter. A filter medium body of the flat filter element is completely enclosed by a seal. Within the area enclosed by the seal, the filter medium of the filter medium body has an interruption. In the area of ​​the interruption, the filter medium body is closed by a sealing element. The sealing element prevents the passage of unfiltered air from the raw side to the clean side. The sealing element is dome-shaped. In the assembled state, a support finger of a first housing part engages the sealing element from a first side and extends completely through the filter medium body parallel to the main flow direction, so that the support finger protrudes from the filter medium body on a second side. The dome-shaped area of ​​the sealing element spans the protruding support finger.The sealing element is positioned between the support finger of the first housing part and a support element of a second housing part. The support finger and the support element provide support for the filter medium body on both sides by means of the sealing element.

The invention relates to the technical field of water treatment, in particular to a continuous quicksand filter, and provides the continuous quicksand filter aiming at the problems in the prior art, the height position of an air box is reasonably designed, the structure of the air box is optimized, the air stripping effect of compressed air is fully utilized, and an air pipe is prevented from being blocked; the structure of an existing sand washer is improved, the movement path of filter materials in the sand washer is prolonged, collision among the filter materials is increased, the dirty sand cleaning effect is improved, the three-phase separation effect is improved, and the regeneration and reuse rate of the filter materials is increased; meanwhile, the structure of the water distributor is optimized, the water distribution amount in unit cross sectional area is equal, the filtering height of the sand bed is fully utilized, and the filtering effect is improved.

A fluid strainer that is meant to remove debris from the flow of fluid through a strainer and that includes a housing having inlet and outlet ports. The housing defines an interior chamber through which the fluid flows. The fluid strainer including a single strainer basked disposed within the housing chamber. The strainer basket has open input end into which the fluid flows from the housing inlet and opposed side walls that extend in the direction of the fluid. The strainer basked further includes an open output end that is comprised of a pair of tapered output wall that direct the fluid flow to the housing outlet port. The strainer housing also includes a side inlet pipe for receiving filtration media.

The utility model relates to the technical field of valves, and specifically to a valve with a filtering function, which includes a fluid pipeline, two valve bodies fixedly arranged on the fluid pipeline, a first filter chamber and a second filter chamber adjacent to each other fixedly arranged on the fluid pipeline, and the first filter chamber and the second filter chamber are located between the two valve bodies. A filter cartridge is arranged in the first filter chamber, and the filter cartridge blocks the pipelines of the fluid pipelines located at both ends thereof, and an adsorbent is arranged in the second filter chamber, and the adsorbent blocks the channels of the fluid pipelines located at both ends thereof. There is a cavity in the filter cartridge, and one end of the filter cartridge is not closed as the inlet of the filter cartridge, and a plurality of filter holes are penetrated from top to bottom of the cavity wall of the filter cartridge as the outlet of the filter cartridge. A brushing structure is slidably arranged on the cavity wall of the filter cartridge. The utility model solves the technical problems of multiple filtering of impurities in the valve pipeline and rapid replacement of the filter medium.

The invention relates to a filter element (100) and a filter system (1000) for cleaning a fluid, comprising a first end disk (10) and a second end disk (20) spaced apart from each other in a longitudinal direction (32). A filter medium body (40) with a filter medium (48) having a closed circumference is arranged sealingly between the end disks (10, 20) and encloses an interior space (42). A support element (50) is arranged in the interior space (42), which has an axial retainer (54) for operative connection with an axial retainer (14) of the first end disk (10) and which projects with a projection (52) with its axial retainer (54) into a nozzle (12) extending longitudinally (32) away from the filter medium body (40) and with the axial retainer (14) of the first end disk (10).The second end disk (20) has a ring element (22) projecting into the interior (42) with a contour (26) which forms an end stop (70) of the second end disk (20) when connecting the filter medium body (40) with the second end disk (20) with a counter contour (56) of the support element (50).

A tubular decrement filtering device belongs to the technical field of water treatment and is characterized in that a raw water feeding pipe is hermetically communicated with a feeding and discharging pipe of a first filtering unit through a water inlet flowmeter and a pressure gauge, and a water outlet connecting pipe orifice of the first filtering unit is serially and hermetically communicated with the following filtering units in sequence; the water outlet connecting pipe orifice of the last filter unit is hermetically communicated with a concentrated water connecting pipe through a concentrated water flowmeter, a backwashing pipe orifice is mounted on the filter pipe wall of each filter unit, backwashing pipes are hermetically communicated in parallel in sequence through the backwashing pipe orifices of the filter units, and a clean water discharging pipe orifice is mounted below the filter pipe wall of each filter unit. And the clean water discharge pipe orifices are sequentially connected in parallel and are hermetically communicated with the clean water discharge pipe through a clean water flowmeter. The method has the beneficial effects that the wastewater can be subjected to decrement treatment without using a flocculating agent; the problem that other filtering systems cannot run continuously is solved, and the situation that the filtering flow is changed from large to small and the filtering medium is finally cleaned by shutdown like a filter press and other filters is not needed.

The invention relates to a flat filter element comprising multiple filter medium bodies. An inner filter medium body is accommodated in a recess circumferentially bounded by at least one outer filter medium body. The inner and outer filter medium bodies are formed from separate pieces of preferably pleated filter medium. The inner filter medium body is attached to the outer filter medium body(s). Preferably, a connecting means serving for attachment simultaneously seals the inner and outer filter medium bodies from one another.

The invention discloses a port sewage dynamic treatment control system based on pressure feedback and flow coordination, and relates to the technical field of port sewage treatment. The port sewage dynamic treatment control system based on pressure feedback and flow coordination comprises a port sewage pipeline blockage analysis module, a port sewage flowing state analysis module and a sewage pressure coordination control analysis module. According to the method, port sewage pipeline blockage analysis is carried out through the obtained filter medium pressure difference to judge whether anti-oscillation variable-frequency optimization is carried out or not, and then whether intelligent speed regulation optimization is carried out or not is judged based on the port sewage flowing state analysis result; and finally, sewage pressure cooperative control analysis is carried out through the obtained sewage pressure cooperative data to judge whether separation supply optimization is carried out or not, so that the sewage parameter closed-loop cooperative control efficiency in the reaction tank is improved when blockage occurs in the biochemical treatment stage. The problem that the closed-loop cooperative control efficiency of sewage parameters in the reaction tank is not high when blockage occurs in the biochemical treatment stage is effectively solved.

The invention provides a printing and dyeing wastewater concentration method and system, and the method comprises the steps: carrying out pretreatment on desizing wastewater, so that suspended particles and colloidal impurities in the wastewater are intercepted and adsorbed by a filtering medium; carrying out buffering and flow regulation on the pretreated wastewater, and meanwhile, carrying out heat exchange on hot condensate water generated in the printing and dyeing production process and the pretreated wastewater; raising the temperature of the wastewater to 40 DEG C or above; pressurizing the heated wastewater and then carrying out membrane separation and concentration treatment, forming dialysate by micromolecular substances and part of water, and gradually accumulating intercepted macromolecular substances to form concentrated solution; when the concentration of the concentrated solution reaches the discharge standard, pollutants are treated by adopting a chemical precipitation method and a biological treatment method, or useful substances are recycled. The wastewater concentration process flow is optimized, the wastewater is filtered, intercepted and adsorbed through multiple media, a good water inlet condition is provided for concentration treatment, modified starch and PVA in the wastewater are effectively concentrated, and the follow-up treatment volume and difficulty are reduced.