7results about How to "Reduce filter pressure" patented technology

The utility model relates to the technical field of sewage treatment, in particular to an efficient membrane separation type wastewater treatment device which comprises a support, a membrane separation unit and a pretreatment unit are arranged on the inner side and the outer side of the support respectively, the pretreatment unit is communicated with the membrane separation unit, and the pretreatment unit is used for pre-filtering wastewater; wherein the pretreatment unit comprises a cylinder part, a filter part and a cleaning part are arranged in the cylinder part, the cleaning part is sleeved with the filter part through a connecting assembly, large-particle impurities contained in wastewater can be pre-filtered through the arrangement of the pretreatment unit, and the wastewater filtering efficiency is further improved; the cleaning part cleans impurities adhering to the inner wall and the outer wall of the filter part while reciprocating, the situation that the filter part is inconvenient to clean and affects the wastewater treatment efficiency is prevented, and the first cleaning part and the second cleaning part can be detached and replaced after long-time use.

The utility model relates to a kind of car washer wastewater treatment device, effectively solve the problem that car washer sewage treatment filter screen is easy to block, long settling time;The technical solution solved includes settling unit, and settling unit includes settling cylinder, and several layers of separation cylinder are coaxially installed in settling cylinder, from inside to outside, the layer number of separation cylinder is first layer to Nth layer, the total layer number of separation cylinder is odd, the lower end of the odd layer separation cylinder is provided with water tank, the upper end of the even layer separation cylinder is provided with water tank, the upper end of separation cylinder is equipped with first water inlet pipe and first water outlet pipe, the lower end of first water inlet pipe is located in the separation cylinder of first layer, the lower end of first water outlet pipe is located between the separation cylinder of outermost layer and settling cylinder, and first water outlet pipe is connected with first water pump;The utility model is filtered by multistage settling and fine sand layer, can effectively separate impurities, in addition, by flushing sand, sand can be quickly completed, solve the problem that filter screen of traditional filtering equipment is easy to block, and filter screen needs to be frequently disassembled and cleaned.

The application discloses a kind of lithium-containing wastewater's resource processing device and method, lithium-containing wastewater's resource processing device includes reaction tank, stirring assembly, reaction tank is used to store lithium-containing wastewater, stirring assembly is used to stir and handle lithium-containing wastewater in reaction tank, stirring assembly includes mounting bracket, mounting bracket is rotatably connected with stirring main rod, stirring main rod is provided with several stirring branch rods, first cavity is opened in stirring main rod, second cavity is opened in stirring branch rod, first cavity and second cavity are communicated, first cavity, second cavity can be used to flow heat source, stirring assembly further includes dosing line, dosing line is set on stirring main rod.Compared with prior art, a kind of lithium-containing wastewater's resource processing device of the application is conducive to extracting heavy metal ions in lithium-containing wastewater, reduces the filtration pressure of filter device, thereby reducing the cleaning and maintenance frequency of filter device, reduces the cost of lithium-containing wastewater's resource processing.

The utility model discloses a cooling water filtering device and a hydraulic station system. The cooling water filtering device comprises a filtering barrel, a filtering unit for filtering, and a backwashing structure which is arranged on the filtering barrel and is used for cleaning the filtering unit, a filtering water inlet is formed in the upper part of the filtering barrel, a filtering water outlet is formed in the lower part of the filtering barrel, an inner cavity, between the filtering water inlet and the filtering water outlet, of the filtering barrel is sequentially and hermetically connected with a first partition plate and a second partition plate from top to bottom, a first mounting hole is formed in the first partition plate, and a second mounting hole is formed in the second partition plate; the filter unit comprises a first-stage filter mesh bag and a second-stage filter mesh bag; the first-stage filter mesh bag is arranged in the first mounting hole in a penetrating manner and is in sealed connection with the first partition plate; the second-stage filter mesh bag is arranged in the second mounting hole in a penetrating manner and is in sealed connection with the second partition plate; the aperture of a filter hole of the first-stage filter mesh bag is larger than that of a filter hole of the second-stage filter mesh bag. The device can filter out particle impurities with different sizes in a water body in a grading manner, improves the filtering efficiency, can perform backwashing self-cleaning, and is time-saving and labor-saving.

The utility model discloses a back fish tank mini fish closestool relates to back fish tank technical field. The back fish tank mini fish closestool, including back fish tank body, the rearing cavity and processing cavity of setting in the inside of back fish tank body, the inside of processing cavity is provided with fish closestool body, and fish is active in the rearing cavity. The device sets up the fish closestool body and filter screen pipe of combination formula in the back fish tank, makes under the spacing of extraction channel, and the dirty water of fish excrement excrement is pumped to the inside of filter screen pipe, and the fish closestool body is collected in the inside of fish closestool body finally under the fish excrement of filter screen pipe interception, makes the effective reduction of dry and wet separation filter piece's filtration pressure, and combines screw joint and fixed screw rod etc. parts, can complete fish closestool body and the convenient split of filter screen pipe and back fish tank and fish closestool body between, the cleaning maintenance of fish closestool body and filter screen pipe is convenient.

This utility model relates to the field of filtration equipment technology, specifically to a filtration device for an open-face washing machine, including a filter box, a box cover, and a connecting device. The box cover is installed on the filter box via the connecting device. A water inlet pipe is provided on one side of the filter box. It also includes a filtration device, which includes a stepped platform, filter screens, baffles, guide plates, a support assembly, and an installation assembly. The stepped platform is fixedly installed inside the filter box and close to the water inlet pipe. The filter screens are installed on the stepped platform via the installation assembly. The baffles are fixedly installed on the stepped platform. The guide plates are fixedly installed at the bottom of the stepped platform and are fixedly connected to the bottom of the filter box. The support assembly is installed inside the filter box. The stepped platform ensures smooth water flow. The multi-component filter screens arranged in a stepped manner on the platform gradually block lint, reducing the filtration pressure on the filter screens and preventing them from becoming clogged.

This utility model discloses a condensation and filtration device for ammonium nitrate production, belonging to the field of ammonium nitrate production technology. It includes a feed pipe, a primary filtration unit, a centrifugal separation chamber, a secondary filtration unit, and a collection tank. The feed pipe has an atomizing nozzle at its end, which is connected to the top of a cyclone condenser. The bottom outlet of the cyclone condenser is connected to the primary filtration unit, which includes a multi-layer gradient metal sintered mesh and a vibration cleaning mechanism. The upper part of the centrifugal separation chamber is connected to the primary filtration unit via a spiral guide channel. The secondary filtration unit includes a coaxially arranged porous ceramic membrane tube and an activated carbon adsorption layer sleeved on the outside of the porous ceramic membrane tube. The secondary filtration unit is connected to the bottom of the centrifugal separation chamber via a guide pipe. The collection tank is connected below the secondary filtration unit via a quick-release flange. This application can achieve comprehensive interception of solid suspended matter of different particle sizes, significantly improving the filtration accuracy and stability of the condensate.