6296results about "Membrane filters" patented technology

A coulter assembly for collecting soil samples from an agricultural field in one embodiment comprises an annular collection blade configured for penetrating soil to capture a sample, an annular cam ring configured for stationary mounting to a frame of an agricultural vehicle and comprising a cam track, a blade hub coupled to the blade for rotatably supporting the annular collection blade from the annular cam ring, and a movable sample collector mounted to the annular collection blade. The moveable sample collector is configured and operable for extracting a soil sample as the annular collection blade is rotated through the soil. The moveable sample collector in one embodiment comprises a piston mechanism including a cylinder and rod movably disposed therein which actuated by the annular cam ring to alternatingly open and close a collection end of the cylinder as the annular collection blade rotates through the soil.

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 control mechanism for self-cleaning filtration systems. One embodiment is a controller for a filtration system that comprises a suction scanner and a screening element having modifiable respective locations therebetween. The controller comprises an input terminal for receiving a relative location signal and additional a differential pressure input terminal. The controller monitors differential pressure and outputs an activation signal after the differential pressure has exceeded a threshold value. The controller outputs a termination signal based on the relative location signal. Another embodiment is a filtration system that comprises: a screening element located within a filtration chamber, and a suction scanner for self-cleaning thereof. A location tracker communicates to a switching mechanism during self-cleaning sessions a signal indicative of a location of the suction scanner with respect to the screening element. The switching mechanism automatically terminates self-cleaning sessions based on the signal.

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.

Device (10) for supplying grey water (160) from a grey water producer (12) to a grey water consumer (500; 702), wherein the grey water producer (12) has a grey water outlet (14), wherein the device (10) has an inlet (16) which can be connected to the grey water outlet (14) and an outlet (18), characterized in that the device (10) also has, in addition to the outlet (18), a discharge connection (20) for discharging grey water (160) to the grey water consumer (500; 702).

A filter module for a gravity-type water-purifying device including a plurality of plate-shaped filter members, which are in a plate shape having a predetermined area, produce filtered water from raw water introduced from the outside, and are spaced apart from each other in parallel along one direction while one surface of each filter member faces each other at a predetermined; and a filtered-water integrating member for fixing one side of each of the plate-shaped filter members so that the plurality of plate-shaped filter members can be kept spaced apart from each other along one direction while facing each other, and for integrating and discharging the filtered water individually produced from each of the plurality of plate-shaped filter members.

Embodiments described herein provide a self-contained, above-the-counter beverage dispenser that allows for personalization of flavor intensity, temperature, and carbonation levels. The system can have a small form factor that allows it to sit on a countertop and below upper cabinetry. The dispenser can dispense carbonated beverages, still beverages, flavored beverages, hot beverages, cold beverages, and combinations thereof. Moreover, unlike existing systems, embodiments described herein may maintained by a user without special training, tools, or technical expertise. The dispenser can include consumable components, such as ingredient cartridges, a gas cylinder, and a filter. Each of these consumable components can be replaced easily without any tools or special training or expertise. Additionally, all consumables can be accessible behind a door on the front of the machine, making them readily accessible by only opening the front door.

An apparatus for wastewater filtration having a barrel, a basket and a screw on a shaft rotating therein for pushing solid in a distinct output. A removable cartridge comprises a cover for the barrel, the cartridge comprising a pre-sealed shaft connector which releasably connects to at least the upper shaft portion or the lower shaft portion to form the shaft. The screw comprises a brush on an outer rim thereof, the brush having radially outwardly oriented bristles that scrape an inner surface of the basket. The screw comprises a winged wiper at a bottom thereof for sweeping a bottom surface of the barrel, and the solid-material output is provided at the bottom surface of the barrel and is shaped as a rectangular opening which is offset from a central axis of the screw. Solid removal efficiency and maintenance are thereby improved.

The invention relates to a degradable filter element and a preparation method thereof, and belongs to the technical field of PLA filter elements. The degradable filter element is arranged between an atomizing element shell and a metal heating wire, a plurality of capillary holes are formed in the degradable filter element and used for being filled with tobacco tar, and the degradable filter element is prepared from a degradable composite material through melt spinning. The degradable composite material comprises the following components: polylactic acid and modified silicon dioxide, wherein the modified silicon dioxide is prepared by taking nano silicon dioxide, a silane coupling agent, ferulic acid, amino acid and copper chloride as raw materials, the silicon dioxide is organically modified, so that the dispersity of the silicon dioxide in a polylactic acid system is improved, the interface binding force of the silicon dioxide is improved, and the mechanical property of a polylactic acid material is improved; various antibacterial components are introduced, so that the antibacterial property of the polylactic acid material can be effectively improved.

A hand vacuum cleaner comprises a cyclone, a conical pre-motor filter that is positioned rearward of the cyclone and a suction motor. The pre-motor filter has a front end that faces that faces towards the cyclone air outlet. The conical pre-motor filter has an open interior volume, an outer surface, which is an upstream surface of the pre-motor filter, and an inner surface, which is a downstream surface of the pre-motor filter.

The present invention provides to a filter residue treatment device, comprising a means for supplying a pressurized fluid, a housing comprising a) a first inlet for the introduction of a medium different from the pressurized fluid and comprising a filter residue and b) a second inlet for the introduction of the pressurized fluid and an inflatable or flexible means comprised in the housing and configured and arranged for being operated by the pressurized fluid such that in an inflated or flexed state it pushes the filter residue comprised in the medium introduced through the inlet towards a filter means.

A fermentation device, comprising a fermentation device body (1) and a blower (2), wherein the blower (2) is embedded in the top of the front face of the fermentation device body; a filter box (3) is fixedly connected to the top of the front face of the fermentation device body (1); a filter plate (4) is provided on the front face of the filter box (3); the surface of the filter plate (4) has a sealing assembly (5) sleeved thereon; and a pressing plate (6) is provided on the front face of the filter box (3). By means of the provision of the filter box (3) and the filter plate (4), when a user uses the blower (2) to draw oxygen from the outside air into the fermentation device body (1), the filter plate (4) can be used to filter out foreign matter such as dust present in the air, preventing the foreign matter such as dust from entering inside the fermentation device body (1), thereby solving the problem of dust and the other impurities in the air easily entering inside the fermentation device and subsequently affecting fermentation quality due to the lack of a filter structure for intake air when using the blower (2) to draw oxygen from the air into the fermentation device, achieving the effect of facilitating filtration.

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.

A filter unit is disclosed that increases solids loading capacity, decreases specific flowrate during filtration, and improves backwash effectiveness. A flow shaping plate and / or flow diverting member are used to reduce flow entrance effects during reverse, backwash flow through the filter unit.

The present invention relates to a steam generator, which includes: a steam shell forming an outer shape and having a space for storing water formed therein; a steam heater, which is arranged inside the steam shell and generates steam by heating the water stored inside the steam shell by applying power; a water pipe, which is arranged on one side of the circumferential surface of the steam shell and is formed with a connecting hole, wherein the connecting hole allows water to flow from the outside into the interior of the steam shell, or allows water inside the steam shell to flow out to the outside; an air intake portion, which is arranged on the upper surface of the steam shell and is formed with an air intake port, wherein the air intake port allows air to flow into the interior of the steam shell; and a steam discharge portion, which is arranged on the upper surface of the steam shell at a predetermined interval from the air intake portion and is formed with a steam discharge port for discharging steam generated inside the steam shell and air flowing in through the air intake portion to the outside.

The invention relates to the field of piggery tail end odor pollution treatment, and discloses a piggery tail end odor purification filter element preparation method and application, the preparation method comprises the following steps: loading a photocatalyst on the surface of a filter element body to obtain a carrier, respectively inoculating 3-5 kinds of antagonism-free deodorization microorganisms into corresponding LB liquid culture mediums for activation and propagation, and carrying out purification on the LB liquid culture mediums to obtain the piggery tail end odor purification filter element. The preparation method comprises the following steps: preparing a bacterial solution, mixing the bacterial solution to obtain a corresponding bacterial solution, compounding all the bacterial solutions in proportion to obtain a compound bacterial solution, infiltrating a carrier in the compound bacterial solution, and carrying out biofilm formation at room temperature to obtain the filter element. After the photocatalyst on the surface is illuminated, some refractory pollutants can be decomposed into smaller intermediate products which are easier to utilize by microorganisms by utilizing light energy, a more suitable substrate is provided for the microorganisms, and the microorganisms can further thoroughly decompose the intermediate products into harmless substances such as carbon dioxide and water, so that the degradation effect is improved. Therefore, the overall degradation efficiency and degree of pollutants are improved.

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 discloses self-adhesion-crosslinking double modified bamboo powder, a preparation method and application, and relates to the technical field of composites.The preparation method of the modified bamboo powder comprises the following steps that S1, bamboo powder, 2, 5-dihydroxyterephthalic acid, 4-aminobenzoyl hydrazine, N, N '-diisopropylcarbodiimide and tris (hydroxymethyl) aminomethane are mixed for a reaction; and S2, trimesic acid is added into the solution obtained after the reaction in the S1 for a reaction, filtering, washing and drying are conducted, and the self-adhesion-crosslinking double modified bamboo powder is obtained. The prepared modified bamboo powder is green and environmentally friendly, through a self-adhesion mechanism, a cross-linking mechanism, a branched-chain phenyl heterogeneous nucleation mechanism and the like, the interfacial compatibility of PBAT and the bamboo powder and the crystallinity of PBAT are improved, and therefore the mechanical property of PBAT / bamboo powder is enhanced.

A water filtration system is also disclosed. The water filtration system includes a regenerative media filter vessel, a filtrate line, a feed line, a recirculation line, a gas line, and at least one pump. A method of filtering water in a system comprising a regenerative media filter is disclosed. The method includes operating the system in a filtration mode, operating the system in a cleaning mode responsive to a differential pressure measurement across the regenerative media filter, operating the system in an aeration mode, operating the system in a pre-filtration mode after operating the system in the cleaning mode, operating the system in a drain mode, and operating the system in the filtration mode following the drain mode. A controller and non-transitory computer-readable medium having computer-readable signals stored thereon that define instructions that, as a result of being executed by the controller, instruct the controller to perform a method of operating a water filtration system are disclosed.

The invention relates to the field of filter materials, and provides an air filter material of a medium efficiency filter and a preparation method thereof, the air filter material comprises a multi-layer composite structure: a first layer of surface modified polyester fluffy non-woven fabric, a second layer of glass fiber filter paper, a third layer of high fluffy PET fiber layer, a fourth layer of electrostatic efficiency filter layer and a fifth layer of PP spun-bonded non-woven fabric protective layer. The surface modified polyester non-woven fabric is subjected to SiO2 nano coating and super-hydrophobic functionalization treatment, so that the air permeability and hydrophobicity of the filter material are improved. The electrostatic efficiency filtering layer is made of polypropylene / barium titanate electret master batch composite melt-blown non-woven fabric, and the electret stability and the filtering performance are improved through the processes of melt blending, water electret treatment and the like. All layers of materials are prepared through a gradient hot-pressing composite technology, and excellent mechanical strength and stability are ensured. The filter material provided by the invention realizes low resistance while ensuring high dust holding capacity, and has wide application value.

A water filtration system is also disclosed. The water filtration system includes a regenerative media filter vessel, a filtrate line, a feed line, a recirculation line, a gas line, and at least one pump. A method of filtering water in a system comprising a regenerative media filter is disclosed. The method includes operating the system in a filtration mode, operating the system in a cleaning mode responsive to a differential pressure measurement across the regenerative media filter, operating the system in an aeration mode, operating the system in a pre-filtration mode after operating the system in the cleaning mode, operating the system in a drain mode, and operating the system in the filtration mode following the drain mode. A controller and non-transitory computer-readable medium having computer-readable signals stored thereon that define instructions that, as a result of being executed by the controller, instruct the controller to perform a method of operating a water filtration system are disclosed.

The invention relates to the technical field of high-temperature gas filtration, and particularly discloses a preparation method of a high-temperature-resistant and corrosion-resistant composite spunlace filter material. The preparation method of the filter material comprises the following steps: pretreating the PTFE short fibers, the glass fibers and the high-temperature-resistant glass fiber woven base cloth; mixing the pretreated glass fibers with PI fibers to obtain mixed fibers; the pretreated PTFE fibers and the mixed fibers are respectively subjected to carding, net forming and net laying, the pretreated PTFE fibers form a surface layer, the mixed fibers form a bottom layer, pretreated high-temperature-resistant glass fiber woven base cloth is used as middle base cloth, pre-needled reinforcement and winding are performed to obtain a pre-needled felt, and the pre-needled felt is subjected to spunlace reinforcement, drying and winding to obtain a filter material plain felt; dipping, shaping and laminating the filter material to obtain the high-temperature-resistant and corrosion-resistant composite spunlace filter material. According to the method, a high-temperature-resistant system for increasing the temperature-resistant threshold value layer by layer is formed, the corrosion resistance is enhanced, and synergistic improvement of high temperature resistance and strong corrosion resistance is achieved.

The present invention relates of a biodegradable and hydrophobic polylactic acid (PLA) non-woven material and a process for manufacturing thereof, said PLA non-woven material comprising a non-woven fabric for personal protective equipment, and a non-woven fabric for the three layer surgical mask; said PLA non-woven material comprising a layer of nanofiber membrane and a layer of biodegradable spunbond fabric which could fulfil the international biodegradation standard EN13432. Said non-woven fabric for the PPE has at least 45N breaking force, at least 15% elongation, and having passed level 3 fluid resistance test according to AATCC 42 and AATCC 127.

A liquid solid separator has a main container wherein a rotating filter belt receives influent for liquid sold mixture sieve processing. A filtered water collections tank, a pressurized water supply are sources of wash water inputs. Cold and hot water pressurized water supplies are also potential supply sources. Load balancing of inputs and single and dual wash water pumps are also described.

A filter arrangement has a first body member with a first axial front surface and a first radial sealing surface, a second body member with a second axial front surface and a second radial sealing surface, a contact portion and an elastic contact element. The first and second body members complementarily couple together with a connecting device. In a coupled state, the contact portion and the elastic contact element are axially compressed between the first and second axial front surface. The second radial sealing surface has a groove housing a first sealing element. When brought into the coupled state, the first radial sealing surface at least partially covers the groove of the second radial sealing surface before the contact portion and elastic contact element are at least partially axially compressed between the first and second axial front surface. When coupled, the first radial sealing surface completely covering the groove.

The invention relates to a method (100) for manufacturing a photocatalytic multi-component fiber including the following steps:Supplying a support mixture (110), including at least one thermoplastic polymer;Supplying an active mixture (120), including:at least one organic polymer,at least one photocatalyst at a concentration of at least 10% by weight relative to the weight of active mixture,at least one coupling agent resistant to oxidation,Spinning (130) a multi-component fiber from support and active mixtures;Eliminating (160) the at least one organic polymer on the surface of the multi-component fiber so as to generate a photocatalytic multi-component fiber.The invention also relates to a multi-component fiber, a textile and a filter.

A reciprocating lamination spiral solid-liquid separator is provided, including: a support frame, a filter chamber, a spiral shaft and a driving device. The filter chamber is assembled with the support frame. The spiral shaft is mounted on the support frame and passes through the filter chamber. The driving device is mounted on the support frame. Two ends of the filter chamber respectively have a feed port and a discharge channel. The filter chamber includes a first closed movable ring-piece assembly and a second closed ring-piece assembly having a motion state that is inconsistent with that of the first closed movable ring-piece assembly. The first and second closed ring-piece assemblies are stacked alternately to form the filter chamber, and a gasket is disposed between two adjacent closed ring-pieces of one of the closed ring-piece assemblies.

A fluid filtration system includes a fluid storage vessel such as a bioreactor, a filter housing including a filter element disposed therein, a pump coupled between the fluid storage vessel and the filter housing, and a flow diverter disposed between the pump and the filter housing. The pump is configured to move fluid from the fluid storage vessel through the filter element, and the flow diverter is configured for selectively directing fluid received from the pump to the first or second end of the filter housing. In a first mode of operation, the flow diverter directs flow through the filter housing in a first direction, while in a second mode of operation, the flow diverter directs flow through the filter housing in a second direction opposite the first direction.