CN219764634U - Backwashing sewage disposal device of immersed ultrafiltration device - Google Patents

Abstract

The utility model discloses a backwashing sewage disposal device of an immersed ultrafiltration device, which comprises a frame, a filter screen arranged on the frame, and a water outlet and a water inlet fixedly arranged on the frame, wherein capillary tubes are arranged in the filter screen, water pipes are connected between the capillary tubes and the water outlet and the water inlet, the water outlet is externally connected with a water suction pump, a sewage disposal box is arranged at the bottom of the frame, a filter pipe is arranged in the sewage disposal box, a pipe orifice at the upper end of the filter pipe is provided with a filter piece, a sewage blocking block is arranged on the filter pipe, a plurality of filter plates are arranged in the sewage disposal box, the filter plates are distributed on two sides of the sewage blocking block, and the filter plates and the sewage blocking block divide the sewage disposal box into a filter cavity and a sedimentation cavity; the filth is filtered by the filter, and the fine impurity of water gets into the sedimentation chamber, and under the effect of keeping off the dirty piece, the filth can not directly get into the filter tube, and the filth is precipitated the intracavity, and comparatively pure water flows from the filter tube, can carry out secondary filtration and use.

Description

Backwashing sewage disposal device of immersed ultrafiltration device

Technical Field

The utility model relates to the technical field of filtering devices, in particular to a backwashing sewage disposal device of an immersed ultrafiltration device.

Background

At present, the ultrafiltration membrane filtration process is widely applied in the field of water treatment, and the immersed ultrafiltration membrane process is focused on because of good adaptability to the existing process transformation. The application form of the immersed ultrafiltration membrane component mainly comprises that the membrane component is directly arranged in a membrane tank, and filtration is formed by the suction effect of a pump. When the membrane is used for a period of time, the filtration efficiency of the membrane is reduced due to dirt blockage, and the service life of the membrane is reduced.

In the prior art, as disclosed in patent application number CN202010394575.1, an immersed membrane module ultrafiltration filter device is disclosed, a backwash cycle is prolonged by a duplex pretreatment filter, treated water is injected into the membrane module filter through a backwash purification assembly for backwash, and thus the service life of the membrane is prolonged. The immersed ultrafiltration device generally fully soaks the membrane in the water tank, only washes out impurities on the membrane during backwashing, but the impurities can all return to the water tank, and when the membrane is filtered again, the impurities can still be adsorbed on the surface of the membrane, so that the filtering efficiency is affected.

Disclosure of Invention

In order to solve at least one technical problem mentioned in the background art, the utility model aims to provide a backwashing sewage disposal device of an immersed ultrafiltration device, which is used for treating impurity dirt flushed from a membrane after backwashing and preventing the impurity dirt from being adsorbed on the surface of the membrane again and influencing the filtration efficiency.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a submergence formula ultrafiltration device's backwash waste fitting discharging, includes the frame, installs the filter screen in the frame and sets firmly in frame delivery port and water inlet, be equipped with the capillary in the filter screen, delivery port and water inlet are connected with the water pipe respectively between capillary, the delivery port external suction pump that has, the frame bottom is equipped with the blow off case, be equipped with the filter tube in the blow off case, be equipped with the fender dirty piece on the filter tube, be equipped with a plurality of filter in the blow off case, the filter distributes in the both sides of keeping off dirty piece, and filter and fender dirty piece divide into filter chamber and sedimentation chamber in with the blow off case.

Compared with the prior art, the utility model has the beneficial effects that:

fill water in the capillary through the water inlet, water washes the filth outside the filter screen, realizes the backwash to the filter screen, and the filth that is washed off gets into the blow off incasement by gravity, and the filth is filtered by the filter, but the filtration precision of filter is lower than the filter screen, and the filth carries tiny impurity to get into the sedimentation chamber, under the effect of fender dirty piece, and the filth can not directly get into the filter tube, and the filth is deposited in the sedimentation chamber after, comparatively pure water flows from the filter tube, can carry out secondary filtration and use.

Preferably, each of the two sides of the filter plate is provided with a fixed plate, the fixed plate is provided with a rotating shaft, the rotating shaft is rotationally connected with the inner wall of the sewage draining box, a transmission component for driving the rotating shaft to rotate is arranged in the sewage draining box, and a filter piece is arranged at the pipe orifice at the upper end of the filter pipe.

Preferably, the transmission assembly comprises a belt wheel fixedly arranged on the rotating shafts, a belt for transmission between the belt wheels and a motor fixedly arranged on one of the rotating shafts.

Preferably, the both sides of filter screen are equipped with the vibrating rod, the both sides sliding connection of frame has the slider, and two sliders set firmly in the both sides of vibrating rod respectively, be equipped with the electric putter that is used for driving the slider reciprocal slip in the frame.

Preferably, the drain is offered to the diapire of sedimentation chamber, the outside of drain can be dismantled and be connected with the dirt collection case, the slip connection has the scraper blade that is used for pushing away the filth on the diapire of sedimentation chamber to the drain to the sediment chamber to and be used for driving the gliding drive assembly of scraper blade.

Preferably, the transmission assembly comprises a hydraulic rod arranged in the sedimentation cavity, and the output end of the hydraulic rod is fixedly arranged on the scraping plate.

Preferably, the filter pipe is provided with a liquid discharge groove, two ends of the liquid discharge groove extend to the inner wall of the sedimentation cavity, the plane of the top surface of the liquid discharge groove is higher than the plane of the bottom inner wall of the sewage draining box, and the scraping plates are arranged on two sides of the filter pipe.

Preferably, both sides of the dirt block have a downward extending tendency.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a cross-sectional view of the present utility model;

FIG. 3 is a cross-sectional view taken at "A-A" of FIG. 2;

FIG. 4 is a cross-sectional view taken at 2"B-B';

FIG. 5 is an enlarged view of a portion of FIG. 2"C";

FIG. 6 is a schematic view of a filter tube according to the present utility model;

in the figure:

1. a frame; 11. a filter screen; 12. a water outlet; 13. a water inlet; 14. a vibrating rod; 15. a slide block; 2. a blow-down tank; 20. a sewage outlet; 201. a filter chamber; 202. a sedimentation chamber; 21. a filter tube; 211. a liquid discharge tank; 212. a filter; 22. a dirt block; 23. a filter plate; 230. a rotating shaft; 231. a belt wheel; 232. a fixing plate; 24. a scraper.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 and 3, the present embodiment provides a backwashing sewage disposal device of an immersed ultrafiltration device, wherein the immersed ultrafiltration device comprises a frame 1, a filter screen 11 installed on the frame 1, and a water outlet 12 fixedly arranged on the frame 1, a capillary tube is arranged in the filter screen 11, a water pipe is connected between the capillary tube and the water outlet 12, and a water pump is externally connected to the water outlet 12; the immersed ultrafiltration device is immersed in a water tank, a water suction pump is started, water in the water tank is pumped into a capillary tube through a filter screen 11 under the pressure of the water suction pump, dirt is filtered outside the filter screen 11, filtered water enters a water outlet 12 through the capillary tube, and finally flows out through the water outlet 12.

The outer surface of the filter screen 11 for filtering for a period of time can accumulate a lot of dirt, at this time, the filter screen 11 is backwashed by adding water into a capillary tube, in the embodiment, a water inlet 13 is fixedly arranged on the frame 1, and a water pipe is connected between the capillary tube and the water inlet 13; in order to prevent backwash water from entering the water outlet 12, a first one-way valve and a second one-way valve are respectively arranged in the water pipe between the capillary tube and the water inlet 13 and between the capillary tube and the water outlet 12, water in the first one-way valve flows into the capillary tube from the water inlet 13, and water in the second one-way valve flows into the water outlet 12 from the capillary tube.

In order to quickly clean the filter screen 11, referring to fig. 2-4, in this embodiment, vibration rods 14 are disposed at two sides of the filter screen 11, the vibration rods 14 are clamped at two sides of the filter screen 11, two sides of the frame 1 are slidably connected with sliding blocks 15, the two sliding blocks 15 are respectively and fixedly disposed at two sides of the vibration rods 14, and two electric push rods for driving the two sliding blocks 15 to slide reciprocally are disposed in the frame 1; in the backwashing process, two electric push rods are started, the same frequency pushes the sliding block 15 to reciprocate horizontally to move in a small amplitude, the vibrating rod 14 is driven to reciprocate horizontally to move in a small amplitude, the vibrating rod 14 clamps the filter screen 11, the filter screen 11 is vibrated, and the dirt flushing speed on the filter screen 11 is accelerated.

Referring to fig. 1-4, in this embodiment, a drain tank 2 is disposed at the bottom of the frame 1, a filter tube 21 is disposed in the drain tank 2, in order to prevent a large amount of dirt from entering the filter tube 21 after the filter plate 23 is turned over, a drain tank 211 is disposed on the filter tube 21, a plane of a top surface of the drain tank 211 is higher than a plane of a bottom inner wall of the drain tank 2, a filter 212 is disposed at a notch of a pipe orifice/top surface of the drain tank 211 at an upper end of the filter tube 21, a dirt blocking block 22 is disposed on the filter tube 21, two sides of the dirt blocking block 22 have a downward extending trend, a plurality of filter plates 23 are disposed in the drain tank 2, the filter plates 23 are distributed on two sides of the dirt blocking block 22, and the filter plates 23 and the dirt blocking block 22 divide the drain tank 2 into a filter cavity 201 and a settling cavity 202; the partial overlap between adjacent filter plates 23 (see fig. 5) ensures that there are no gaps between the filter plates 23 and the filter plates 23.

Referring to fig. 5, in this embodiment, two sides of each filter plate 23 are provided with a fixing plate 232, a rotating shaft 230 is disposed on the fixing plate 232, the rotating shaft 230 is rotatably connected with an inner wall of the sewage draining box 2, and a transmission assembly for driving the rotating shaft 230 to rotate is disposed in the sewage draining box 2; the transmission assembly includes a belt wheel 231 fixed on one of the rotating shafts 230, a belt for driving the belt wheel 231, and a motor fixed on one of the rotating shafts 230.

Referring to fig. 1-4, in the present embodiment, a drain 20 is provided on a bottom wall of the settling chamber 202, a dirt collecting tank is detachably connected to an outer side of the drain 20, a scraper 24 for pushing dirt on the bottom wall of the settling chamber 202 to the drain 20, and a transmission assembly for driving the scraper 24 to slide are slidably connected in the settling chamber 202, the scraper 24 is disposed on two sides of the filter tube 21, and in order to prevent the scraper 24 from being unable to clean dirt in front and back (in front and back along a moving direction of the scraper 24) of the drain tank 211, two ends of the drain tank 211 extend to an inner wall of the settling chamber 202 (refer to fig. 6).

Wherein, the transmission assembly includes a hydraulic rod disposed in the sedimentation chamber 202, and an output end of the hydraulic rod is fixed on the scraper 24.

In order to prevent the scraper 24 from having a cleaning dead angle, the upper end of the filter tube 21 extends to two side walls of the sedimentation chamber 202 along the cleaning direction of the scraper 24 (as shown in fig. 4), the dirt block 22 also extends along the direction, and the axis of the rotating shaft 230 of the filter plate 23 is parallel to the direction; the both sides of scraper 24 are connected with the lateral wall of filter tube 21 upper end and the inner wall of sedimentation chamber 202 in a sliding way, and the bottom of scraper 24 is connected with the diapire of sedimentation chamber 202 in a sliding way.

After water enters the filter cavity 201 and is filtered by the filter plate 23, after the filter plate 23 filters for a period of time, a motor is started, a belt wheel and a belt are transmitted, the rotating shaft 230 rotates 180 degrees, the filter plate 23 is turned over, the dirt filtered on the upper side of the filter plate 23 is turned over to the lower side, and slowly precipitates to the bottom of the filter cavity 201 under the action of gravity, and due to the action of the dirt blocking block 22 (the position of the rotating shaft 23 is not higher than the upper side of the filter tube 21), the dirt does not enter the filter tube 21, but directly precipitates to the bottom of the precipitation cavity 202; the filter pipe 21 is provided with a valve, after the valve is opened, water in the sedimentation cavity 202 flows out of the filter pipe 21, and part of water can be filtered for the second time; the dirt deposited in the deposition chamber 202 moves through the magnet driven by the hydraulic rod to drive the scraper 24 to move, so as to push the dirt into the sewage outlet 20, and enter a dirt collecting box (not shown in the figure, the upper side of the dirt collecting box is provided with an opening, can receive the dirt dropped from the sewage outlet 20 and has a certain accommodating space), and after a period of time, the dirt collecting box is disassembled and cleaned, and then is installed back to the bottom of the sewage outlet 20.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims (8)

1. The utility model provides a backwash waste fitting discharging of submergence formula ultrafiltration device, includes frame (1), installs filter screen (11) on frame (1) to and set firmly delivery port (12) and water inlet (13) on frame (1), be equipped with the capillary in filter screen (11), delivery port (12) and water inlet (13) are connected with the water pipe respectively with the capillary between, delivery port (12) external suction pump that has, a serial communication port, frame (1) bottom is equipped with blow-down case (2), be equipped with filter tube (21) in blow-down case (2), be equipped with on filter tube (21) and keep off dirty piece (22), be equipped with a plurality of filter plate (23) in blow-down case (2), filter plate (23) and keep off dirty piece (22) and divide into filter chamber (201) and sedimentation chamber (202) in blow-down case (2).

2. The backwashing sewage disposal device of the immersed ultrafiltration device according to claim 1, wherein both sides of each filter plate (23) are provided with a fixed plate (232), a rotating shaft (230) is arranged on the fixed plate (232), the rotating shaft (230) is rotationally connected with the inner wall of the sewage disposal box (2), a transmission component for driving the rotating shaft (230) to rotate is arranged in the sewage disposal box (2), and a filter element (212) is arranged at the pipe orifice at the upper end of the filter pipe (21).

3. The backwashing sewage disposal device of an immersed ultrafiltration device according to claim 2, wherein the transmission assembly comprises a belt wheel (231) fixed on the rotation shaft (230), a belt for transmission between the belt wheels (231), and a motor fixed on one of the rotation shafts (230).

4. The backwashing sewage disposal device of the immersed ultrafiltration device according to claim 1, wherein the two sides of the filter screen (11) are provided with vibrating rods (14), two sides of the frame (1) are slidably connected with sliding blocks (15), the two sliding blocks (15) are respectively fixedly arranged at two sides of the vibrating rods (14), and an electric push rod for driving the sliding blocks (15) to slide reciprocally is arranged in the frame (1).

5. The backwashing sewage disposal device of the immersed ultrafiltration device according to claim 1, wherein a sewage drain (20) is arranged on the bottom wall of the sedimentation cavity (202), a sewage collecting box is detachably connected to the outer side of the sewage drain (20), a scraper (24) for pushing sewage on the bottom wall of the sedimentation cavity (202) to the sewage drain (20) is slidably connected to the sedimentation cavity (202), and a transmission component for driving the scraper (24) to slide is arranged.

6. The backwash sewage draining device of an immersed ultrafiltration device according to claim 5, wherein said transmission assembly comprises a hydraulic rod arranged in a sedimentation chamber (202), and an output end of said hydraulic rod is fixed on a scraper (24).

7. The backwashing sewage disposal device of the immersed ultrafiltration device according to claim 5, wherein the filter pipe (21) is provided with a liquid drain groove (211), two ends of the liquid drain groove (211) extend to the inner wall of the sedimentation cavity (202), the plane of the top surface of the liquid drain groove (211) is higher than the plane of the bottom inner wall of the sewage disposal box (2), and the scraping plates (24) are arranged at two sides of the filter pipe (21).

8. A backwash sewage draining device for an immersion type ultrafiltration apparatus according to claim 1 wherein both sides of said sewage blocking block (22) have a downward extending tendency.