2263results about "Loose filtering material filters" patented technology

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.

The invention relates to the technical field of soil layer drilling, in particular to an efficient underground water quality detection sampling device which comprises a base, a fixing seat is further arranged on the base, and a device storage structure and a sample storage structure are arranged on the left side and the right side of the fixing seat respectively; a supporting structure is further arranged in the middle of the fixing base and comprises a vertical plate, a transverse plate, an axial motor, a mounting base, a lead screw, a guide rod and a drill rod. The drill rod is connected with the mounting seat through a rotating piece; the drill rod comprises a drill bit, a rod body, a sampling water pump and a sampling pipe; a sampling hole is further formed in the drill bit, and a liquid collecting cavity which is coaxially distributed is formed in the center in the rod body; a first cavity and a second cavity which are distributed from inside to outside are further formed in the rod body and located on the outer side of the liquid collecting cavity, and the sampling hole extends inwards, penetrates through the first cavity and the second cavity and is communicated with the liquid collecting cavity. The device is reasonable in structural design, filtering, collecting, sampling and storing operation of underground water at different heights can be completed on the basis that efficient drilling of underground water soil layers at different depth positions is achieved, and the using effect is good.

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 provides a coalescence-selective filtration-deep bed filtration efficient oil-water separation system which comprises a coalescence system, a selective filtration system and a deep bed filtration system, oily wastewater enters a coalescer, and tiny oil droplets are coalesced into larger oil droplets through wetting coalescence and collision coalescence; the coalesced wastewater enters a selective filter, oil droplets and water respectively flow out through an oil channel and a water channel, and primary separation is realized; according to the present invention, the water after the primary separation enters the deep bed filter to achieve the deep separation, the efficient oil-water separation and the water quality standard discharge or reuse are achieved through the combination process of coalescence, selective filtration and deep bed filtration, and the system has advantages of high treatment efficiency, low energy consumption, less carbon emission, oil and water recycling, or water standard discharge.

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 utility model discloses a water treatment device adopting an ozone micro-nano bubble coupling electrochemical oxidation process. The water treatment device comprises an ozone generating device, a micro-nano bubble generating device, a BDD (Boron Drain Discharge) electrode unit and an air flotation filter tank device, the device has the following beneficial effects: (1) the Venturi jet device is adopted to release ozone micro-nano bubbles, so that wastewater and the micro-nano bubbles are fully stirred and mixed and are fully contacted with the BDD electrode for oxidative degradation, and the impact force formed by jet flow can wash the BDD electrode plate, so that the BDD electrode plate is prevented from being easily blocked; (2) an ozone micro-nano bubble technology and a BDD electrode technology are coupled to generate a synergistic effect, a large number of hydroxyl radicals are generated, the oxidation capacity is enhanced, the organic matter removal capacity is improved, and the sterilization, decoloration and deodorization capacities of the device on raw water are enhanced. And (3) the BDD is combined with an air flotation process, so that the occupied area is reduced, and the layout is optimized. And (4) fine particles in the water body are further removed by the air floatation superposition filter tank, and the concentration of suspended particulate matters is reduced.

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.

A filtering apparatus is configured to receive pressurized fluid from a pump. The filtering apparatus has a main inlet, a main outlet, and a filtering branch comprising a first filter. An agitator of a tank from which the pump draws is configured to receive fluid flow from the filtering branch via a proportional valve and an inlet connection. A method of operating a filtering system includes influencing fluid flow from a tank to one or more nozzles via a filtering apparatus; and diverting a portion of the fluid flow through plural filters of a different mesh size back to an agitating mechanism through a lower portion of the tank.

The invention relates to the technical field of swimming pool filtration, in particular to a composite treatment method of a filter aid for swimming pool filtration, which comprises the following steps: S1, adding the filter aid: adding a powdered activated carbon filter aid into a filter through a feeding pump, and forming an activated carbon filter aid filter cake in the filter; s2, filtering: intercepting or adsorbing impurities when the water in the to-be-treated pond is filtered through an activated carbon filter aid filter cake and a filter, and continuously or intermittently supplementing a powdered activated carbon filter aid in order to maintain the filtering efficiency; s3, backwashing: when the pressure difference of the filter reaches a set value, backwashing is started, and intercepted and adsorbed pollutants and the activated carbon filter aid filter cake slurry are discharged into a drainage system together. The device has the effects of efficiently removing chloramine and other disinfection by-products, peculiar smell, pigment and other pollutants, guaranteeing the water quality safety of the swimming pool and maintaining normal operation of the swimming pool.

The invention discloses a water purification method and system for urban and rural integrated water supply, and relates to the technical field of water treatment. The water purification method for urban and rural integrated water supply solves the problems that an existing system is poor in process adaptability, inaccurate in control and low in energy efficiency. Water quality and pipe network data are collected in real time through a sensor; an adjustable folded plate flocculation device is adopted, and the flocculation effect is optimized in combination with turbidity dynamic adjustment; constructing a multi-parameter dosing model, and dynamically dosing according to flow, turbidity and the like; the LSTM neural network is used for predicting the state of a filter layer, and air-water pulse backwashing is intelligently controlled; and adding a composite flocculant to enhance pollutant removal, and realizing water quality prediction and system collaborative optimization by virtue of a random forest algorithm and a digital twin platform. The flocculation efficiency is improved, dosing is accurately controlled, energy consumption and water resource waste are reduced, and an efficient and stable scheme is provided for urban and rural water supply.

The utility model discloses a denitrification deep bed filter treatment device which comprises a filter body, a water inlet pipe, a water outlet pipe, a filler layer, a gravel layer and a quartz layer, partition plates are uniformly and fixedly connected in the filter body, through holes are uniformly formed in the upper side and the lower side of each partition plate, a dirt scattering channel is formed in each partition plate, and a water collecting pipe is arranged on one side of the filter body. The bottom side in the filter tank body is fixedly connected with a fixing plate, the fixing plate is provided with a groove, a first baffle is fixedly connected in the groove, the bottom end of the first baffle is fixedly connected with a driving motor, and the output end of the driving motor is fixedly connected with a second baffle; according to the utility model, the spacing plates are arranged among the filler layer, the gravel layer and the quartz layer, the through holes are formed in the spacing plates, then the sewage discharge channels are arranged in the spacing plates, and the impurities of the filter material are treated through the water collecting pipe, the water distributing pipe and the nozzles, so that the layering of the filter material can be ensured, and the treatment efficiency of the impurities and sludge is improved.

The invention discloses a method for improving the operation efficiency of a filter tank, and belongs to the technical field of water treatment.The method includes the steps that the situation change rule of a filter material of the filter tank in the backwashing process is observed, the optimal backwashing state is found, and the internal mechanism relation of the porosity of the filter material, the expansion rate of the filter material, backwashing parameters and the like is established; the overall operation effect of the filter tank is judged, the health degree of the filter tank is evaluated, the manual inspection intensity is reduced, management personnel are assisted in decision analysis, early warning is facilitated, and the operation efficiency of the filter tank is improved while the water quality safety of effluent of the filter tank is guaranteed. The whole operation is more reasonable and intelligent, water resources are saved, the burden of a water treatment process is reduced, management is carried out in units, monitoring of daily operation is met, the opportunity of supplementing or updating of the filter material is guided through evaluation of the health degree of the filter material, and scientific early warning and refined operation and maintenance are met.

A mesh filter for a fuel system of a vehicle may include: a frame for maintaining a shape thereof; a mesh member coupled to the frame so as to remove foreign substances contained in fuel, where the mesh member includes a first mesh member and a second mesh member; and an opening unit for opening and closing a fuel path in the first mesh member. In particular, the second mesh member has a mesh size smaller than a mesh size of the first mesh member such that the mesh filter inhibits clogging of the mesh filter with paraffin wax.

A filtering apparatus is configured to receive pressurized fluid from a pump. The filtering apparatus has a main inlet, a main outlet, and a filtering branch comprising a first filter. An agitator of a tank from which the pump draws is configured to receive fluid flow from the filtering branch via a proportional valve and an inlet connection. A method of operating a filtering system includes influencing fluid flow from a tank to one or more nozzles via a filtering apparatus; and diverting a portion of the fluid flow through plural filters of a different mesh size back to an agitating mechanism through a lower portion of the tank.

The invention relates to the technical field of fish meat processing, and discloses a fish meat pretreatment cleaning device which comprises a containing groove, two partition plates are fixedly installed in the containing groove, the two partition plates divide the interior of the containing groove into three parts, the middle part is a cleaning groove, the two sides are backflow grooves, the right half part of each partition plate is provided with a partition net, and the right half part of each partition plate is provided with a filter screen. And a liquid supply assembly is fixedly installed at the left end of the containing groove, four drainage pipes are connected to the right end of the liquid supply assembly, and spray head assemblies are arranged on the four drainage pipes. In the rotating process of the rotating drum, a sliding column slides along a first inclined groove, a second arc-shaped groove, a second inclined groove and a first arc-shaped groove to drive a second lantern ring and a push plate to reciprocate left and right, so that a sliding frame is driven to reciprocate left and right, and a spray head body swings back and forth; the moving mechanism also moves in the transverse direction; therefore, the purposes of adjusting the angle of the nozzle body and improving the fish turning effect are achieved.

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 water filtration treatment, and particularly discloses an agricultural irrigation horizontal net type gravel filtration treatment system which comprises a gravel bin, a flow equalizing assembly, an opening and closing assembly, a detection assembly and a vibration assembly, and the gravel bin comprises a coarse sand bin, a medium sand bin and a fine sand bin; sewage can uniformly enter the gravel bin through the flow equalizing assembly, the medium sand bin and the fine sand bin are both closed through the opening and closing assembly, the sewage is filtered through the coarse sand bin, when only the fine sand bin is closed, the sewage is filtered through the coarse sand bin and the medium sand bin, the medium sand bin and the fine sand bin are both opened, and the sewage is filtered through the coarse sand bin, the medium sand bin and the fine sand bin; therefore, different filtering effects can be selected according to actual use requirements, the detection assembly can detect the cleanliness of backwashing water, the speed of inputting the backwashing water is adjusted according to a detection result, and the vibration assembly can vibrate medium sand and fine sand, so that impurities attached to the medium sand and the fine sand are reduced, and the service life of the medium sand and the fine sand is prolonged. And the washing effect on the medium sand and the fine sand is further improved.

A system for reconditioning contaminated water includes a plurality of filter tanks, each filter tank configured to hold a media mixture comprising media particles to which contaminants adhere when the contaminated water is pumped through the filter tanks and a feed water pump to pump the contaminated water through the plurality of filter tanks. The plurality of filter tanks are configured to form a multistage filter system for filtering the contaminated water at different contaminant particle sizes, and the feed water pump pumps the contaminated water through the multistage filter system in a continuous manner during a normal filtering mode.

This disclosure relates to filtration screens for use in a backwashable granular media bed filtration system. Drop-in retrofit kits for a backwashable granular media bed filtration system comprising one or more filtrations screens are provided herein. Such screens and kits can comprise a media support screen, a backwash filter screen, or a combination thereof. The kit can further comprise an agitator element comprising an impeller having vanes in which the impeller vane surfaces are coated with an abrasion resistant material. Associated filtration systems and processes are also described herein.

A filter section includes a filter having a cylindrical shape formed from a pleated plate; an attachment section having a cylindrical shape provided on a side surface of the tank, the attachment section with one end of the filtration section; a plate covering an end of the filtration section on a side not provided with the attachment section; and a baffle plate provided adjacent to the filtration section. The filtration section is provided along a horizontal direction, and the filtration section and the plate are provided inside the tank. The baffle plate includes at least one of a first baffle plate provided inside the pleated filter and a second baffle plate provided outside the pleated filter. The first baffle plate is disposed at least above a central axis of the filtration section, and the second baffle plate is disposed at least below the central axis.

The invention relates to a water treatment multi-medium filter, which relates to the technical field of sewage treatment equipment, and comprises a bracket, a tank body, a filtering assembly, a flushing assembly and an adjusting assembly, the top and the bottom of the tank body are respectively communicated with a water inlet pipe and a water outlet pipe; three groups of filtering assemblies are arranged, and each filtering assembly comprises a first partition plate, a second partition plate and a filtering medium; the first partition plate and the second partition plate are arranged in the tank body, and filter holes are formed in the first partition plate and the second partition plate; the filtering media are located between the first partition plate and the second partition plate, and the filtering precision of the three filtering media is gradually increased in the direction close to the bottom of the tank body; the flushing assembly is arranged on the tank body and is used for cleaning the filtering medium; the adjusting assembly is arranged on the tank body and used for adjusting the distance between the first partition plate and the second partition plate. The cleaning efficiency of the filtering medium can be 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.

A fluid strainer that is meant to remove debris from a fluid stream and including a housing having in inlet port defined at an inlet wall of the housing and an outlet port that is opposite to the inlet port and that is defined by an outlet wall of the housing; the housing defining an interior chamber through which the fluid flows; a strainer basket that is disposed within the housing chamber; the strainer basket having an open inlet end into which the fluid flows from the housing inlet, opposed sidewalls including a pair of tapered outlet walls that merge and direct the fluid flow to the housing outlet port and an outlet end wall; and a bar that is disposed within the housing that is located adjacent to and across the outlet port for spacing the outlet end wall of the strainer basket from the housing outlet wall.

To provide an apparatus for cleaning and concentrating fine particle slurry capable of reducing the amount of cleaning water or the amount of cleaning waste water used in an apparatus for producing fine particle powder.SOLUTION: An apparatus for cleaning and concentrating fine particle slurry includes: a slurry tank 30 for storing fine particle slurry; a flow channel 56 for supplying the stored fine particle slurry to a stirring type crossflow filtration device 6; a return flow channel 76 for returning filtrate discharged from the stirring type crossflow filtration device 6 to the slurry tank 30; a waste flow channel 78 for discarding the filtrate discharged from the stirring type crossflow filtration device 6; a filtrate sensor including a conductivity sensor 71 for measuring the conductivity of the filtrate discharged from the stirring type crossflow filtration device 6 or a density sensor for measuring the density of the filtrate; a flow channel switching device 74 for performing flow channel switching as to cause the filtrate discharged from the stirring type crossflow filtration device 6 to flow in the return flow channel 76 or the waste flow channel 78; and a control part 69 for controlling the flow channel switching device 74 for causing the filtrate to flow in the waste flow channel 78 or the return flow channel 76.SELECTED DRAWING: Figure 1

The utility model discloses a urechis unicinctus sand filter, and belongs to the technical field of aquaculture tail water treatment. The sand filter comprises a sand filter body, a hollow overflow layer and an outer protective layer, the sand filter body is divided into three layers, namely a fine sand layer, a coarse sand layer and a cobblestone layer, through a urechis unicinctus culture box supporting sieve plate, a coarse sand screen and a cobblestone screen. And the fine sand layer is divided into four fan-shaped sea worm breeding boxes, the side surfaces and the bottoms of the box bodies are permeable screen-shaped, and arc-shaped protective plates are arranged on top plates of the box bodies, are folded at the upper edge of the sand filter body and are used for overflow drainage. And the sand filter is used for filtering large particles in the aquaculture tail water by absorbing residual bait and excrement in the aquaculture tail water by using the sea intestines and filtering the large particles in the aquaculture tail water by using fine sand. The device organically integrates machinery, microorganisms and organisms to purify the culture tail water, is time-saving and labor-saving, is suitable for filtering natural seawater or factory-like and pond seedling culture and culture tail water, and is wide in application range; the utilization rate and the output rate of unit seawater resources are improved, and waste of water resources is avoided.

The invention relates to an automatically controlled inverted backwashing pre-filter, which comprises a valve casing, a filtering and backwashing mechanism and a filter bottle, the valve casing is provided with a water inlet end, a water outlet end, an upward filter bottle assembling end and a valve casing cavity, the filter bottle and the filter bottle assembling end are fixed in a matched manner, the filtering and backwashing mechanism is arranged in the filter bottle, and the valve casing cavity is provided with a water inlet and a water outlet. A cavity between the filtering mechanism and the filtering bottle forms a raw water cavity, the filtering and backwashing mechanism comprises a filtering mechanism and a backwashing mechanism which are coaxially arranged, a flow guide seat is arranged in the valve shell cavity and divides the valve shell cavity into a water inlet end valve shell cavity, a central end valve shell cavity and a water outlet end valve shell cavity, and the water inlet end valve shell cavity, the central end valve shell cavity and the water outlet end valve shell cavity are communicated through the flow guide seat. The water inlet end valve shell cavity is communicated with the water inlet end and is provided with a particle blow-down control valve, the central end valve shell cavity is communicated with a filter screen backwashing blow-down valve through a central blow-down pipe, and the water outlet end valve shell cavity is communicated with the water outlet end. The inverted backwashing pre-filter is simple in structure, more optimized in structure and easy to match with an installation occasion, and is provided with a plurality of blowdown channels to meet the requirement of different application modes for automatic control.

The invention relates to the technical field of sewage treatment, in particular to a backwashing multi-medium filtering device, which comprises a washing assembly, a tank body, a drain outlet, a water outlet and a water conveying pipe, the pushing assembly comprises a filtering layer, a servo motor, a washing column arranged in the filtering layer, a moving column arranged on the inner wall of the washing column and a spray washing column arranged on the inner wall of the washing column; a servo motor drives a lower connecting disc to rotate slowly, the connecting disc drives a water pipe to rotate below a filter layer, water flow is sprayed into the filter layer from the bottom of the filter layer through a water spraying opening in the surface of the water pipe, and filter materials at the bottom of the filter layer are washed in cooperation with backwashing water flow; the washing columns in the filter layers rotate together, the spray washing columns on the surfaces of the washing columns can be intermittently opened, vortexes are sprayed outwards, the filter materials on the layers are further washed, impurities are separated from the filter materials, finally, the impurities are discharged through reverse impact water flow at the bottom, and the sewage treatment efficiency is improved.

The invention provides a backwashing multi-stage water treatment filtering and purifying method and system, the method is used for filtering industrial sewage and then recollecting and reusing, and the method comprises the following steps: discharging gas in a filtering tank out of the tank and then closing an exhaust port; sewage to be filtered enters from the water inlet, is filtered by the multi-layer medium filtering layer and is discharged from the water outlet; various parameters in filtering are monitored, and under the condition that the remote control single chip microcomputer controls the pressure difference of each filtering tank to be within a pressure difference threshold value, it is guaranteed that filtered water discharged from a water outlet meets the turbidity requirement in the drainage standard; when the pressure difference in a certain filtering tank exceeds a pressure difference threshold value, backwashing the corresponding filtering tank; and after the back washing is finished, the forward filtering step is repeated again. The optimal flow velocity of the water inlet and the optimal flow velocity of the water outlet are obtained through learning optimization, and then it is guaranteed that sewage at the water outlet meets the turbidity requirement in the drainage standard. Meanwhile, when the pressure difference in a certain filtering tank exceeds a pressure difference threshold value, the filtering tank can be backwashed.

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.