Integrated multistage water purification ultrafiltration membrane equipment capable of removing algae

Abstract

The invention relates to the technical field of water treatment, and provides an integrated multi-stage water purification ultrafiltration membrane device capable of removing algae, the integrated multi-stage water purification ultrafiltration membrane device comprises a coagulation box, and two sides of the top end of the coagulation box are fixedly connected with a medicine adding tank and a liquid adding pipe; according to the device, a second motor is started, the second motor drives a second rotating rod to rotate, the second rotating rod drives a gear to rotate, the gear drives a rack to rotate, the rack drives a supporting rotating ring and an inflation connecting block to rotate, and the inflation connecting block drives a fixed flushing pipe to rotate, so that the fixed flushing pipe rotates for flushing, and flushing is achieved while the fixed flushing pipe rotates; pollutants obtained after flushing are mixed with liquid in the ultrafiltration tank, then the discharging pipe is opened, the pollutants are discharged through the discharging pipe, then operation and cleaning are repeated, if the flat plate type ultrafiltration membrane needs to be replaced, the deflection ring can be deflected out, and therefore the flat plate type ultrafiltration membrane can be replaced. And pulling out the flat plate type ultrafiltration membrane from the support plate for replacement.

Description

Technical Field

[0001] The invention relates to the technical field of water treatment, and in particular to an integrated multi-stage water purification ultrafiltration membrane device capable of removing algae. Background Art

[0002] Algae are a common organic pollutant in water bodies. Their growth and reproduction will cause the water's color, turbidity, odor and other indicators to deteriorate, affecting the safety and appearance of the water quality. It will also increase the difficulty and cost of water treatment. Ultrafiltration membrane is a water treatment technology that uses the separation principle of a semi-permeable membrane to intercept suspended matter, colloids, microorganisms, etc. in the water. It has the advantages of simple operation, high efficiency, small footprint and low energy consumption.

[0003] For example, the invention disclosed in the publication number CN118289889A relates to the technical field of water purification equipment, and provides an integrated multi-stage water purification ultrafiltration membrane device capable of removing algae, including: an ultrafiltration membrane device housing and an algae removal housing, wherein the algae removal housing is arranged below the ultrafiltration membrane device housing, and a plurality of filter elements are arranged equidistantly inside the algae removal housing. In this invention, sewage is transported to the interior of the algae removal housing through the second water inlet pipe, and the rotating blades can be rotated under the impact force of the sewage, so that the sewage is transported toward the second water outlet pipe, and the algae substances are filtered and intercepted by the filter element, and the scraper bar rotates synchronously to scrape off the algae substances adsorbed on the bottom of the filter element, so as to prevent the algae substances from adhering to the surface of the ultrafiltration membrane filaments and block the tiny holes of the ultrafiltration membrane filaments. In this way, the integrated multi-stage water purification ultrafiltration membrane device does not need to perform frequent backwashing operations, thereby improving the filtration efficiency of the integrated multi-stage water purification ultrafiltration membrane device.

[0004] In the above-mentioned prior art, water is added into a filter barrel, and algae in the water are filtered and intercepted by a filter element. The filtered liquid passes through the filter element and enters an ultrafiltration membrane assembly. The ultrafiltration membrane assembly further filters the incoming liquid, and the filtered liquid is discharged and collected. However, after filtration by the filter element, tiny pollutants are still present in the water. These pollutants are accumulated on the ultrafiltration membrane after being filtered by the ultrafiltration membrane, forming a pollution layer on the membrane surface or in the membrane pores, thereby resulting in a decrease in membrane flux, an increase in membrane resistance, and a shortened membrane life. Summary of the invention

[0005] The purpose of the present invention is to solve the problem in the prior art that after filtration by the filter element, fine pollutants still exist in the water. After being filtered by the ultrafiltration membrane, these pollutants accumulate on the ultrafiltration membrane and form a pollution layer on the membrane surface or in the membrane pores, thus causing the membrane flux to decrease, the membrane resistance to increase, and the membrane life to be shortened.

[0006] In order to achieve the above-mentioned objectives, the present invention adopts the following technical scheme: an integrated multi-stage water purification ultrafiltration membrane device capable of removing algae, comprising a coagulation box, both sides of the top of the coagulation box are fixedly connected with a dosing tank and a liquid adding pipe, the interior of the coagulation box is equidistantly arranged and fixedly connected with filter plates, the middle part of the bottom end of the coagulation box is fixedly connected with a water inlet pipe, a stirring assembly is arranged inside the coagulation box, the bottom end of the coagulation box is fixedly connected with an ultrafiltration tank, the front of the ultrafiltration tank is equidistantly arranged and fixedly connected with a discharge pipe, one side of the bottom end of the ultrafiltration tank is fixedly connected with a drain pipe, the bottom end of the ultrafiltration tank is fixedly connected with a support seat, the top of the ultrafiltration tank is fixedly connected to the water inlet pipe, the interior of the ultrafiltration tank is equidistantly arranged with ultrafiltration membrane assemblies, a rotating assembly is arranged on one side of the ultrafiltration tank, an inflation assembly is arranged on the other side of the ultrafiltration tank, and a flushing component is arranged inside the ultrafiltration tank at the bottom end of the ultrafiltration membrane assembly.

[0007] As a preferred embodiment, the rotating assembly includes a first bracket, the first bracket is fixed on one side of the ultrafiltration tank, the top end of the first bracket is fixedly connected to the second motor, the bottom end of the second motor is transmission-connected to the second rotating rod, the second rotating rod passes through the first bracket and is rotationally connected to the first bracket, the bottom end of the second rotating rod is fixedly connected to a plurality of gears, a supporting swivel is provided on the side of the gear close to the ultrafiltration tank, the second motor is started, the second motor drives the second rotating rod to rotate, the second rotating rod drives the gear to rotate, the gear drives the rack to rotate, and the rack drives the supporting swivel and the inflation connecting block to rotate.

[0008] As a preferred embodiment, the support swivels are equidistantly arranged in the middle of the ultrafiltration tank and are rotatably connected to the ultrafiltration tank, an inflation connecting block is fixedly connected to one radial side of the support swivel, a deflection ring is clamped on one side of the inflation connecting block, the inflation connecting block and the deflection ring are both rotatably connected to the ultrafiltration tank, the support swivel, the inflation connecting block and the bottom end of the outer wall of the deflection ring are fixedly connected with a rack, the rack is meshed with the gear, and the inflation connecting block drives the fixed flushing pipe to rotate, so that the fixed flushing pipe rotates and flushes, which facilitates flushing while the fixed flushing pipe rotates, thereby effectively removing the contamination of the flat ultrafiltration membrane by algae, and the flushing is more comprehensive, and the pollutants flushed out are mixed with the liquid in the ultrafiltration tank, and then the discharge pipe is opened, the pollutants are discharged through the discharge pipe, and then the cleaning operation is repeated.

[0009] As a preferred embodiment, the inflation assembly includes a second bracket, the second bracket is fixed on the side of the ultrafiltration tank away from the first bracket, the top of the second bracket is fixedly connected to an air pump, one side of the air pump is fixedly connected to an air pipe, the air pipe passes through the second bracket and is fixedly connected to the second bracket, and a plurality of connecting air pipes are fixedly connected to the side of the air pipe close to the ultrafiltration tank. The flat-plate ultrafiltration membrane performs long-term precise filtration, and pollutants will adhere to the surface and need to be cleaned. Therefore, the filter plate and the drain pipe are closed, and the air pump is started. The air pump supplies air to the inside of the air pipe, the second bracket supplies air to the inside of the connecting air pipe, and the connecting air pipe supplies air to the supporting air ring.

[0010] As a preferred embodiment, the end of the connecting air pipe away from the air supply pipe is fixedly connected to a supporting air ring, and the supporting air ring is fixed to the ultrafiltration tank at the top of the supporting swivel, and the internal rotation of the bottom end of the supporting air ring is connected to a rotating air ring, and the radial side of the bottom end of the rotating air ring is fixedly connected to an outlet pipe, and the bottom end of the outlet pipe is fixedly connected to the deflection ring, the supporting air ring supplies air to the interior of the outlet pipe, the outlet pipe supplies air to the inflation connecting block, the inflation connecting block supplies air to the fixed flushing pipe, and then sprays air through the high-pressure air head, and when the rotating assembly drives the fixed flushing pipe to rotate, the inflation connecting block can drive the outlet pipe to rotate, and the outlet pipe drives the rotating air ring to rotate in the supporting air ring, so that during the rotation of the fixed flushing pipe, the supporting air ring always supplies air to the outlet pipe through the rotating air ring, so that the inside of the fixed flushing pipe always maintains high pressure.

[0011] As a preferred embodiment, the ultrafiltration membrane assembly includes a flat ultrafiltration membrane, which is equidistantly arranged inside an ultrafiltration tank, and has limit plates fixedly connected to both sides of the flat ultrafiltration membrane. The outer wall of the limit plate is slidably connected to a mounting plate, and the mounting plate is located inside the ultrafiltration tank at a support swivel, and the side away from the flat ultrafiltration membrane is slidably connected to the support swivel, and the top of the mounting plate is fixedly connected to a support plate, and the support plate is fixed inside the ultrafiltration tank at the top of the support swivel. If the flat ultrafiltration membrane needs to be replaced, the deflection ring can be deflected out, and the flat ultrafiltration membrane can be pulled out from the support plate for replacement.

[0012] As a preferred embodiment, the flushing part includes a fixed flushing pipe, which is fixed on the inner side of the inflation connecting block. A movable flushing pipe is slidably connected inside the fixed flushing pipe. One end of the movable flushing pipe located inside the fixed flushing pipe is fixedly connected with a sealing ring. The pressure in the fixed flushing pipe gradually increases, and part of the gas is ejected through the high-pressure gas head at the top of the fixed flushing pipe. As the pressure in the fixed flushing pipe increases, the movable flushing pipe gradually extends from the fixed flushing pipe until the movable flushing pipe is fully extended and pulls the spring, causing the spring to stretch.

[0013] As a preferred embodiment, the sealing ring is slidably connected to the fixed flushing pipe, springs are arranged inside the fixed flushing pipe and the movable flushing pipe, and the top ends of the fixed flushing pipe and the movable flushing pipe are equidistantly arranged and fixedly connected with high-pressure gas heads, and the high-pressure gas head at the top end of the movable flushing pipe also starts to pressurize and spray the gas, thereby reversely inflating the flat-plate ultrafiltration membrane, and spraying the gas at high pressure to flush out the pollutants in the pores of the flat-plate ultrafiltration membrane, thereby achieving flushing. Therefore, when not flushing, the fixed flushing pipe is in a shortened state, reducing contact with the liquid and avoiding obstruction to the downward flow of the liquid.

[0014] As a preferred embodiment, the stirring assembly includes a first motor, which is fixed in the middle of the top of the coagulation box. The bottom end of the first motor is transmission-connected with a first rotating rod, which passes through the coagulation box and the filter plate and is rotationally connected with the coagulation box and the filter plate. The bottom end of the first rotating rod is located at the top of the filter plate and is fixedly connected with a fixed rod. The staff adds raw water to the interior of the coagulation box through the liquid adding pipe, and then adds coagulation liquid to the coagulation box through the dosing tank according to the proportion of raw water. The first motor is started, and the first motor drives the first rotating rod to rotate, the first rotating rod drives the fixed rod to rotate, and the fixed rod drives the fixed ring and the stirring blade to rotate.

[0015] As a preferred embodiment, a fixing ring is fixedly connected to the middle part of the fixing rod, a scraper frame is fixedly connected to the middle part of the fixing ring, the scraper frame is slidably connected to the coagulation box and the filter plate, and a stirring blade is fixedly connected to the end of the fixing rod away from the first rotating rod. The stirring blade rotates to stir the coagulation liquid and the raw water to make them fully mixed and react, and finally form suspended matter and colloids that condense into large particles. The large particles are filtered by the filter plate, and the filtered water passes through the filter plate into the interior of the ultrafiltration tank, and the fixed ring drives the scraper frame to rotate, which can scrape the large particles accumulated on the filter plate, thereby increasing the filtration speed of the filter plate.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. In the present invention, the second motor is started, the second motor drives the second rotating rod to rotate, the second rotating rod drives the gear to rotate, the gear drives the rack to rotate, the rack drives the supporting swivel and the inflation connecting block to rotate, and the inflation connecting block drives the fixed flushing pipe to rotate, so that the fixed flushing pipe rotates to flush, which is convenient for flushing while the fixed flushing pipe rotates, thereby effectively removing the contamination of algae on the flat-plate ultrafiltration membrane, and flushing is more comprehensive, and the flushed pollutants are mixed with the liquid in the ultrafiltration tank, and then the discharge pipe is opened, and the pollutants are discharged through the discharge pipe, and then the cleaning operation is repeated. If the flat-plate ultrafiltration membrane needs to be replaced, the deflection ring can be deflected out, and the flat-plate ultrafiltration membrane can be pulled out from the support plate for replacement.

[0018] 2. In the present invention, the flat ultrafiltration membrane performs long-term precise filtration, and pollutants will adhere to the surface and need to be cleaned. Therefore, the filter plate and the drain pipe are closed, and the air pump is started. The air pump supplies air to the inside of the air pipe, the second bracket supplies air to the inside of the connecting air pipe, and the connecting air pipe supplies air to the supporting air ring. The supporting air ring supplies air to the inside of the outlet pipe, the outlet pipe supplies air to the inflatable connecting block, the inflatable connecting block supplies air to the fixed flushing pipe, and then sprays air through the high-pressure air head. When the rotating assembly drives the fixed flushing pipe to rotate, the inflatable connecting block can drive the outlet pipe to rotate, and the outlet pipe drives the rotating air ring to rotate in the supporting air ring, so that during the rotation of the fixed flushing pipe, the supporting air ring always supplies air to the outlet pipe through the rotating air ring, so that the inside of the fixed flushing pipe always maintains high pressure.

[0019] 3. In the present invention, the pressure in the fixed flushing pipe gradually increases, and part of the gas is ejected through the high-pressure gas head at the top of the fixed flushing pipe. As the pressure in the fixed flushing pipe increases, the movable flushing pipe gradually extends from the fixed flushing pipe until the movable flushing pipe is fully extended, and the high-pressure gas head at the top of the movable flushing pipe also starts to spray gas, thereby reversely inflating the flat-plate ultrafiltration membrane, and ejecting the gas at high pressure to flush out the pollutants in the pores of the flat-plate ultrafiltration membrane, thereby achieving flushing. Therefore, when not flushing, the fixed flushing pipe is in a shortened state, reducing contact with the liquid and avoiding obstruction to the downward flow of the liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the structure of an integrated multi-stage water purification ultrafiltration membrane device capable of removing algae provided by the present invention;

[0021] Figure 2 A schematic cross-sectional structure diagram of an integrated multi-stage water purification ultrafiltration membrane device capable of removing algae provided by the present invention;

[0022] Figure 3 A schematic diagram of the cross-sectional structure of a coagulation tube of an integrated multi-stage water purification ultrafiltration membrane device capable of removing algae provided by the present invention;

[0023] Figure 4 A schematic diagram of the cross-sectional structure of an ultrafiltration tank of an integrated multi-stage water purification ultrafiltration membrane device capable of removing algae provided by the present invention;

[0024] Figure 5 A schematic diagram of the structure of an aeration component of an integrated multi-stage water purification ultrafiltration membrane device capable of removing algae provided by the present invention;

[0025] Figure 6 A schematic diagram of the structure of a rotating assembly of an integrated multi-stage water purification ultrafiltration membrane device capable of removing algae provided by the present invention;

[0026] Figure 7 A schematic diagram of the cross-sectional structure of a flushing component of an integrated multi-stage water purification ultrafiltration membrane device capable of removing algae provided by the present invention;

[0027] Figure 8 A schematic diagram of the structure of an ultrafiltration membrane assembly of an integrated multi-stage water purification ultrafiltration membrane device capable of removing algae provided by the present invention;

[0028] Legend:

[0029] 1. Coagulation box; 111. Dosing tank; 112. Dosing pipe; 113. Filter plate; 114. Water inlet pipe; 12. First motor; 121. First rotating rod; 122. Fixed rod; 123. Fixed ring; 124. Scraper frame; 125. Stirring blade; 2. Ultrafiltration tank; 21. Discharge pipe; 22. Drain pipe; 23. Support seat; 31. First bracket; 32. Second motor; 33. Second rotating rod; 34. Gear; 35. Support Support swivel ring; 36, inflation connection block; 37, deflection ring; 38, rack; 41, second bracket; 42, air pump; 43, air pipe; 44, connecting air pipe; 45, support air ring; 46, rotating air ring; 47, air outlet pipe; 51, flat ultrafiltration membrane; 52, limit plate; 53, mounting plate; 54, support plate; 61, fixed flushing pipe; 62, movable flushing pipe; 63, sealing ring; 64, spring; 65, high-pressure gas head. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figure 1 - Figure 8 The present invention provides a technical solution: an integrated multi-stage water purification ultrafiltration membrane device capable of removing algae, comprising a coagulation tank 1, both sides of the top of the coagulation tank 1 are fixedly connected with a dosing tank 111 and a liquid adding pipe 112, filter plates 113 are fixedly connected and arranged equidistantly inside the coagulation tank 1, a water inlet pipe 114 is fixedly connected to the middle of the bottom end of the coagulation tank 1, a stirring assembly is arranged inside the coagulation tank 1, an ultrafiltration tank 2 is fixedly connected to the bottom end of the coagulation tank 1, a discharge pipe 21 is fixedly connected and arranged equidistantly on the front of the ultrafiltration tank 2, a drain pipe 22 is fixedly connected to one side of the bottom end of the ultrafiltration tank 2, a support seat 23 is fixedly connected to the bottom end of the ultrafiltration tank 2, the top of the ultrafiltration tank 2 is fixedly connected to the water inlet pipe 114, ultrafiltration membrane assemblies are arranged equidistantly inside the ultrafiltration tank 2, a rotating assembly is arranged on one side of the ultrafiltration tank 2, an inflation assembly is arranged on the other side of the ultrafiltration tank 2, and a flushing component is arranged at the bottom end of the ultrafiltration membrane assembly inside the ultrafiltration tank 2.

[0032] like Figure 1 - Figure 8 As shown, the rotating assembly includes a first bracket 31, the first bracket 31 is fixed on one side of the ultrafiltration tank 2, the top of the first bracket 31 is fixedly connected to the second motor 32, the bottom end of the second motor 32 is transmission-connected to the second rotating rod 33, the second rotating rod 33 passes through the first bracket 31 and is rotatably connected to the first bracket 31, the bottom end of the second rotating rod 33 is fixedly connected to a plurality of gears 34, a support swivel 35 is provided on the side of the gear 34 close to the ultrafiltration tank 2, the support swivel 35 is equidistantly arranged in the middle of the ultrafiltration tank 2, and is rotatably connected to the ultrafiltration tank 2, a radial side of the support swivel 35 is fixedly connected to an inflation connecting block 36, a deflection ring 37 is clamped on the support swivel 35 on one side of the inflation connecting block 36, the inflation connecting block 36 and the deflection ring 37 are all rotatably connected to the ultrafiltration tank 2, the bottom ends of the outer walls of the support swivel 35, the inflation connecting block 36 and the deflection ring 37 are fixedly connected to a rack 38, and the rack 38 meshes with the gear 34.

[0033] In this embodiment, the flat ultrafiltration membrane 51 performs accurate filtration for a long time, and pollutants adhere to the surface and need to be cleaned. Therefore, the filter plate 113 and the drain pipe 22 are closed, and the air pump 42 is started. The air pump 42 supplies air to the inside of the air supply pipe 43, and the second bracket 41 supplies air to the inside of the connecting air pipe 44, and the connecting air pipe 44 supplies air to the supporting air ring 45. The supporting air ring 45 supplies air to the inside of the outlet pipe 47, and the outlet pipe 47 supplies air to the inflatable connecting block 36, and the inflatable connecting block 36 supplies air to the fixed flushing pipe 61, and then sprays it through the high-pressure gas head 65. When the rotating assembly drives the fixed flushing pipe 61 to rotate, the inflatable connecting block 36 can drive the outlet pipe 47 to rotate, and the outlet pipe 47 drives the rotating air ring 46 to rotate in the supporting air ring 45, so that during the rotation of the fixed flushing pipe 61, the supporting air ring 45 always supplies air to the outlet pipe 47 through the rotating air ring 46, so that the inside of the fixed flushing pipe 61 always maintains high pressure.

[0034] like Figure 1 - Figure 8As shown, the inflation component includes a second bracket 41, the second bracket 41 is fixed to the side of the ultrafiltration tank 2 away from the first bracket 31, the top of the second bracket 41 is fixedly connected to an air pump 42, one side of the air pump 42 is fixedly connected to an air pipe 43, the air pipe 43 runs through the second bracket 41 and is fixedly connected to the second bracket 41, a side of the air pipe 43 close to the ultrafiltration tank 2 is fixedly connected to a plurality of connecting air pipes 44, one end of the connecting air pipe 44 away from the air pipe 43 is fixedly connected to a supporting air ring 45, the supporting air ring 45 is fixed to the top of the ultrafiltration tank 2 at the supporting swivel 35, the bottom of the supporting air ring 45 is rotatably connected to a rotating air ring 46, and the rotating air ring An air outlet pipe 47 is fixedly connected to one radial side of the bottom end of the ring 46, and the bottom end of the air outlet pipe 47 is fixedly connected to the deflection ring 37. The ultrafiltration membrane assembly includes a flat ultrafiltration membrane 51, and the flat ultrafiltration membranes 51 are equidistantly arranged inside the ultrafiltration tank 2. Limiting plates 52 are fixedly connected to both sides of the flat ultrafiltration membrane 51, and the outer wall of the limiting plate 52 is slidably connected to a mounting plate 53. The mounting plate 53 is located inside the ultrafiltration tank 2 at the support swivel 35, and is slidably connected to the support swivel 35 on the side away from the flat ultrafiltration membrane 51. The top of the mounting plate 53 is fixedly connected to a support plate 54, and the support plate 54 is fixed inside the ultrafiltration tank 2 at the top of the support swivel 35.

[0035] In this embodiment, the second motor 32 is started, the second motor 32 drives the second rotating rod 33 to rotate, the second rotating rod 33 drives the gear 34 to rotate, the gear 34 drives the rack 38 to rotate, the rack 38 drives the supporting swivel 35 and the inflation connecting block 36 to rotate, and the inflation connecting block 36 drives the fixed flushing pipe 61 to rotate, so that the fixed flushing pipe 61 rotates and flushes, so that the fixed flushing pipe 61 can be flushed while rotating, thereby effectively removing the contamination of algae on the flat ultrafiltration membrane 51, and flushing is more comprehensive, and the flushed pollutants are mixed with the liquid in the ultrafiltration tank 2, and then the discharge pipe 21 is opened, and the pollutants are discharged through the discharge pipe 21, and then the cleaning operation is repeated. If the flat ultrafiltration membrane 51 needs to be replaced, the deflection ring 37 can be deflected out, and the flat ultrafiltration membrane 51 can be pulled out from the support plate 54 for replacement.

[0036] like Figure 1 - Figure 8 As shown, the flushing part includes a fixed flushing pipe 61, which is fixed on the inner side of the inflation connecting block 36, and a movable flushing pipe 62 is slidably connected inside the fixed flushing pipe 61. One end of the movable flushing pipe 62 located inside the fixed flushing pipe 61 is fixedly connected with a sealing ring 63, and the sealing ring 63 is slidably connected to the fixed flushing pipe 61. Springs 64 are arranged inside the fixed flushing pipe 61 and the movable flushing pipe 62, and high-pressure gas heads 65 are equidistantly arranged and fixedly connected at the top ends of the fixed flushing pipe 61 and the movable flushing pipe 62.

[0037] In this embodiment, the fixed flushing pipe 61 gradually becomes high-pressure, and part of the gas is ejected through the high-pressure gas head 65 at the top of the fixed flushing pipe 61. As the pressure in the fixed flushing pipe 61 increases, the movable flushing pipe 62 gradually extends from the fixed flushing pipe 61 until the movable flushing pipe 62 is fully extended, and the high-pressure gas head 65 at the top of the movable flushing pipe 62 also starts to spray air, thereby reversely inflating the flat ultrafiltration membrane 51, and the gas is ejected at high pressure to flush out the pollutants in the pores of the flat ultrafiltration membrane 51, thereby achieving flushing. Therefore, when not flushing, the fixed flushing pipe 61 is in a shortened state, reducing contact with the liquid and avoiding blocking the downward flow of the liquid.

[0038] like Figure 1 - Figure 8 As shown, the stirring assembly includes a first motor 12, which is fixed in the middle of the top of the coagulation box 1, and the bottom end of the first motor 12 is transmission-connected with a first rotating rod 121, which penetrates the coagulation box 1 and the filter plate 113, and is rotationally connected with the coagulation box 1 and the filter plate 113, the bottom end of the first rotating rod 121 is located at the top of the filter plate 113 and is fixedly connected with a fixing rod 122, the middle part of the fixing rod 122 is fixedly connected with a fixing ring 123, the middle part of the fixing ring 123 is fixedly connected with a scraper frame 124, the scraper frame 124 is slidingly connected with the coagulation box 1 and the coagulation box 1 and the filter plate 113, and the end of the fixing rod 122 away from the first rotating rod 121 is fixedly connected with a stirring blade 125.

[0039] In this embodiment, the staff adds raw water to the interior of the coagulation tank 1 through the liquid adding pipe 112, and then adds coagulant liquid to the coagulation tank 1 through the dosing tank 111 according to the proportion of the raw water, and starts the first motor 12. The first motor 12 drives the first rotating rod 121 to rotate, and the first rotating rod 121 drives the fixed rod 122 to rotate, and the fixed rod 122 drives the fixed ring 123 and the stirring blade 125 to rotate. The stirring blade 125 rotates to stir the coagulant liquid and the raw water to make them fully mixed and react, and finally form suspended matter and colloids to condense into large particles, which are filtered by the filter plate 113. The filtered water enters the interior of the ultrafiltration tank 2 through the filter plate 113, and the fixed ring 123 drives the scraper frame 124 to rotate, which can scrape the large particles accumulated on the filter plate 113, thereby increasing the filtration speed of the filter plate 113.

[0040] Working principle: First, the staff adds raw water to the inside of the coagulation tank 1 through the liquid adding pipe 112, and then adds coagulation liquid to the coagulation tank 1 through the dosing tank 111 according to the proportion of the raw water, and starts the first motor 12, the first motor 12 drives the first rotating rod 121 to rotate, the first rotating rod 121 drives the fixed rod 122 to rotate, the fixed rod 122 drives the fixed ring 123 and the stirring blade 125 to rotate, the stirring blade 125 rotates to stir the coagulation liquid and the raw water, so that they are fully mixed and reacted, and finally form suspended matter and colloids to condense into large particles, which are filtered by the filter plate 113, and the filtered water enters the interior of the ultrafiltration tank 2 through the filter plate 113, and the fixed ring 123 drives the scraper frame 124 The rotation can scrape the large particles accumulated on the filter plate 113, thereby increasing the filtering speed of the filter plate 113. The liquid enters the ultrafiltration tank 2 and falls onto the flat ultrafiltration membrane 51. The multi-layer flat ultrafiltration membrane 51 can further filter the liquid to remove suspended matter, bacteria, viruses and other harmful substances in the water. After multi-layer filtration, the liquid is discharged and collected through the drain pipe 22. The flat ultrafiltration membrane 51 has been filtering accurately for a long time, and pollutants will adhere to the surface and need to be cleaned. Therefore, the filter plate 113 and the drain pipe 22 are closed, and the air pump 42 is started. The air pump 42 supplies air to the inside of the air pipe 43, the second bracket 41 supplies air to the inside of the connecting air pipe 44, and the connecting air pipe 44 supplies air to the supporting air ring 45. The supporting air ring 45 supplies air to the inside of the air outlet pipe 47, the air outlet pipe 47 supplies air to the inflation connection block 36, the inflation connection block 36 supplies air to the fixed flushing pipe 61, the fixed flushing pipe 61 gradually becomes high pressure, and part of the gas is ejected through the high-pressure gas head 65 at the top of the fixed flushing pipe 61, as the pressure in the fixed flushing pipe 61 increases, the movable flushing pipe 62 gradually extends from the fixed flushing pipe 61 until the movable flushing pipe 62 is fully extended, and the high-pressure gas head 65 at the top of the movable flushing pipe 62 also starts to pressurize and eject the gas, thereby reversely inflating the flat-plate ultrafiltration membrane 51, and ejecting the gas at high pressure to flush out the pollutants in the pores of the flat-plate ultrafiltration membrane 51, thereby achieving flushing. Therefore, when not flushing, the fixed flushing pipe 61 is in a shortened state, reducing the pressure with The contact of the liquid is avoided to block the liquid when it flows downward. At the same time, the second motor 32 is started, the second motor 32 drives the second rotating rod 33 to rotate, the second rotating rod 33 drives the gear 34 to rotate, the gear 34 drives the rack 38 to rotate, the rack 38 drives the supporting swivel 35 and the inflation connecting block 36 to rotate, and the inflation connecting block 36 drives the fixed flushing pipe 61 to rotate, so that the fixed flushing pipe 61 rotates to flush, thereby flushing more comprehensively, and the pollutants flushed out are mixed with the liquid in the ultrafiltration tank 2, and then the discharge pipe 21 is opened, and the pollutants are discharged through the discharge pipe 21, and then the cleaning operation is repeated. If it is necessary to replace the flat ultrafiltration membrane 51, the deflection ring 37 can be deflected out, and the flat ultrafiltration membrane 51 can be pulled out from the support plate 54 for replacement.

[0041] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. An integrated multi-stage water purification ultrafiltration membrane device capable of removing algae, comprising a coagulation tank (1), characterized in that: Both sides of the top of the coagulation box (1) are fixedly connected to a dosing tank (111) and a liquid adding pipe (112); filter plates (113) are fixedly connected at equal intervals inside the coagulation box (1); a water inlet pipe (114) is fixedly connected to the middle of the bottom of the coagulation box (1); a stirring assembly is arranged inside the coagulation box (1); an ultrafiltration tank (2) is fixedly connected to the bottom of the coagulation box (1); and a discharge pipe (21) is fixedly connected to the front of the ultrafiltration tank (2) at equal intervals. A drainage pipe (22) is fixedly connected to one side of the bottom end of the ultrafiltration tank (2), a support seat (23) is fixedly connected to the bottom end of the ultrafiltration tank (2), the top end of the ultrafiltration tank (2) is fixedly connected to the water inlet pipe (114), ultrafiltration membrane assemblies are equidistantly arranged inside the ultrafiltration tank (2), a rotating assembly is provided on one side of the ultrafiltration tank (2), an inflation assembly is provided on the other side of the ultrafiltration tank (2), and a flushing component is provided inside the ultrafiltration tank (2) at the bottom end of the ultrafiltration membrane assembly.

2. The integrated multi-stage water purification ultrafiltration membrane device capable of removing algae according to claim 1, characterized in that: The rotating assembly comprises a first bracket (31), the first bracket (31) is fixed on one side of the ultrafiltration tank (2), the top end of the first bracket (31) is fixedly connected to a second motor (32), the bottom end of the second motor (32) is transmission-connected to a second rotating rod (33), the second rotating rod (33) passes through the first bracket (31) and is rotationally connected to the first bracket (31), the bottom end of the second rotating rod (33) is fixedly connected to a plurality of gears (34), and a supporting rotating ring (35) is provided on a side of the gears (34) close to the ultrafiltration tank (2).

3. The integrated multi-stage water purification ultrafiltration membrane device capable of removing algae according to claim 2, characterized in that: The support swivels (35) are arranged equidistantly in the middle of the ultrafiltration tank (2) and are rotatably connected to the ultrafiltration tank (2). A gas charging connection block (36) is fixedly connected to one radial side of the support swivel (35). A deflection ring (37) is clamped on one side of the gas charging connection block (36). The gas charging connection block (36) and the deflection ring (37) are both rotatably connected to the ultrafiltration tank (2). A rack (38) is fixedly connected to the bottom ends of the outer walls of the support swivel (35), the gas charging connection block (36) and the deflection ring (37), and the rack (38) is meshed with the gear (34).

4. The integrated multi-stage water purification ultrafiltration membrane device capable of removing algae according to claim 1, characterized in that: The inflation assembly comprises a second bracket (41), the second bracket (41) being fixed on a side of the ultrafiltration tank (2) away from the first bracket (31), the top end of the second bracket (41) being fixedly connected to an air pump (42), one side of the air pump (42) being fixedly connected to an air delivery pipe (43), the air delivery pipe (43) passing through the second bracket (41) and being fixedly connected to the second bracket (41), and a side of the air delivery pipe (43) close to the ultrafiltration tank (2) being fixedly connected to a plurality of connecting air pipes (44).

5. The integrated multi-stage water purification ultrafiltration membrane device capable of removing algae according to claim 4, characterized in that: One end of the connecting air pipe (44) away from the air delivery pipe (43) is fixedly connected to a supporting air ring (45), and the supporting air ring (45) is fixed to the top of the ultrafiltration tank (2) located at the supporting rotating ring (35). The bottom end of the supporting air ring (45) is internally rotatably connected to a rotating air ring (46), and one radial side of the bottom end of the rotating air ring (46) is fixedly connected to an air outlet pipe (47), and the bottom end of the air outlet pipe (47) is fixedly connected to the deflection ring (37).

6. The integrated multi-stage water purification ultrafiltration membrane device capable of removing algae according to claim 1, characterized in that: The ultrafiltration membrane assembly comprises a flat ultrafiltration membrane (51), wherein the flat ultrafiltration membrane (51) is arranged equidistantly inside the ultrafiltration tank (2), and the two sides of the flat ultrafiltration membrane (51) are fixedly connected to limit plates (52), and the outer wall of the limit plate (52) is slidably connected to a mounting plate (53), and the mounting plate (53) is located inside the ultrafiltration tank (2) at the support swivel (35), and is slidably connected to the support swivel (35) on the side away from the flat ultrafiltration membrane (51), and the top of the mounting plate (53) is fixedly connected to a support plate (54), and the support plate (54) is fixed inside the ultrafiltration tank (2) at the top of the support swivel (35).

7. The integrated multi-stage water purification ultrafiltration membrane device capable of removing algae according to claim 1, characterized in that: The flushing component comprises a fixed flushing pipe (61), the fixed flushing pipe (61) being fixed on the inner side of the inflation connection block (36), a movable flushing pipe (62) being slidably connected inside the fixed flushing pipe (61), and a sealing ring (63) being fixedly connected to one end of the movable flushing pipe (62) located inside the fixed flushing pipe (61).

8. The integrated multi-stage water purification ultrafiltration membrane device capable of removing algae according to claim 7, characterized in that: The sealing ring (63) is slidably connected to the fixed flushing pipe (61), springs (64) are provided inside the fixed flushing pipe (61) and the movable flushing pipe (62), and high-pressure gas heads (65) are equidistantly arranged and fixedly connected to the top ends of the fixed flushing pipe (61) and the movable flushing pipe (62).

9. The integrated multi-stage water purification ultrafiltration membrane device capable of removing algae according to claim 1, characterized in that: The stirring assembly comprises a first motor (12), the first motor (12) being fixed at the middle of the top end of the coagulation box (1), the bottom end of the first motor (12) being transmission-connected to a first rotating rod (121), the first rotating rod (121) passing through the coagulation box (1) and the filter plate (113), and being rotationally connected to the coagulation box (1) and the filter plate (113), the bottom end of the first rotating rod (121) being located at the top end of the filter plate (113) and being fixedly connected to a fixing rod (122).

10. The integrated multi-stage water purification ultrafiltration membrane device capable of removing algae according to claim 9, characterized in that: A fixing ring (123) is fixedly connected to the middle of the fixing rod (122), a scraper frame (124) is fixedly connected to the middle of the fixing ring (123), the scraper frame (124) is slidably connected to the coagulation box (1) and the coagulation box (1) and the filter plate (113), and a stirring blade (125) is fixedly connected to one end of the fixing rod (122) away from the first rotating rod (121).

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