Tank-type ultrafiltration equipment

Abstract

The invention belongs to the technical field of water treatment, and particularly relates to tank-type ultrafiltration equipment, which comprises an ultrafiltration equipment shell, the hollow pipe is rotationally connected to the inner wall of the ultrafiltration equipment shell through a bearing; the connecting shaft drives the first gear to rotate, the first gear drives the second gear to rotate, the second gear drives the hollow pipe to rotate, the hollow pipe drives the sealing plate to rotate, the sealing plate drives the ultrafiltration membrane and the scraper to rotate, the ultrafiltration membrane is soft in texture, in the rotating process, the ultrafiltration membrane is impacted by water, dirt falls off, and the function of cleaning the ultrafiltration membrane is achieved. The membrane treatment capacity of the ultrafiltration membrane is improved, the service life of the ultrafiltration membrane is prolonged, and the scraper is in contact with the shell of the ultrafiltration equipment to remove dirt on the shell of the ultrafiltration equipment; the second gear rotates to drive the third gear to rotate, the third gear drives the reciprocating lead screw to rotate, the reciprocating lead screw drives the blocking plate to reciprocate, the blocking plate discontinuously leaves the liquid storage box, the cleaning agent in the liquid storage box flows out, the ultrafiltration membrane is cleaned in cooperation with stirring, and the cleaning effect of the ultrafiltration membrane is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of water treatment, in particular to a tank type ultrafiltration device. Background Art

[0002] Ultrafiltration is a membrane separation technology that can purify and separate solutions. Ultrafiltration membrane is a solution separation device that uses ultrafiltration membrane filaments as filtration medium and the pressure difference on both sides of the membrane as the driving force. The ultrafiltration membrane only allows solvents, inorganic salts and small molecular organic matter in the solution to pass through, while intercepting large molecular substances such as suspended matter, colloids, proteins and microorganisms in the solution, thereby achieving the purpose of purification and separation. Ultrafiltration membranes are widely used in water treatment projects, and ultrafiltration technology plays an increasingly important role in reverse osmosis pretreatment and drinking water treatment.

[0003] A Chinese patent with publication number CN118001927B discloses a tank-type ultrafiltration device including a main filtering tank body, a primary filtering component for performing primary filtering action on liquid entering the main filtering tank body, a secondary filtering component for performing secondary filtering on liquid filtered by the primary filtering component, a primary ultrafiltration component for filtering liquid filtered by the secondary filtering component, a fine filtering component for filtering liquid treated by the primary ultrafiltration component, and a secondary ultrafiltration component for filtering liquid treated by the fine filtering component. A main liquid inlet is provided on the upper side of the main filtering tank body, a main liquid outlet is provided at the end of the main filtering tank body, the primary filtering component is installed in the main filtering tank body, and multi-stage filtering action on the liquid is achieved through the mutual cooperation of various structures, thereby improving the filtering efficiency of the liquid and also improving the filtering effect of the liquid.

[0004] In the above technology, filtration can be performed through the filter assembly, but after the filter assembly has been running for a period of time, the membrane surface and membrane pores of the filter assembly are easily clogged by pollutants, resulting in a gradual decrease in membrane flux, inability to continue filtration, and inconvenience for continued flow of treated water. Membrane pollution shortens the service life of the membrane; and the aeration volume needs to be increased, wasting resources.

[0005] To this end, the present invention provides a tank type ultrafiltration device. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve the technical problem is: a tank-type ultrafiltration device described in the present invention comprises:

[0008] Ultrafiltration equipment housing;

[0009] The hollow tube is rotatably connected to the inner wall of the ultrafiltration device housing through a bearing;

[0010] Two sealing plates are symmetrically fixed to both ends of the hollow tube;

[0011] Multiple ultrafiltration membranes are evenly connected to two sealing plates;

[0012] A cleaning mechanism is arranged inside the housing of the ultrafiltration device;

[0013] The cleaning mechanism includes a liquid storage box, which is connected and fixedly connected to the ultrafiltration equipment housing; the outer wall of the hollow tube is fixedly connected to the second gear; the top outer wall of the housing is fixedly connected to a motor; the output shaft of the motor is fixedly connected to a connecting shaft, and the connecting shaft is rotatably connected to the ultrafiltration equipment housing through a bearing; one end of the connecting shaft is fixedly connected to a first gear, and the first gear is meshed with the second gear; a side plate is rotatably connected to the side wall of the hollow tube through a rotating shaft; a reciprocating screw is rotatably connected to the top of the side plate through a bearing, and a sealing plate is threadedly connected to the top of the reciprocating screw; the sealing plate moves in the liquid storage box; the outer wall of the reciprocating screw is fixedly connected to a third gear, and the third gear is meshed with the second gear; a plug is installed at one end of the liquid storage box.

[0014] Preferably, six scrapers are fixedly connected to the outer wall of the hollow tube; the scrapers are in contact with the inner wall of the ultrafiltration equipment shell; a plurality of through holes are evenly opened on the hollow tube, wherein the through holes on the same horizontal line are all arranged between adjacent scrapers, and the ultrafiltration plates are evenly arranged between adjacent scrapers.

[0015] Preferably, both ends of the ultrafiltration equipment housing are connected with flanges; one end of one of the flanges is connected and fixedly connected to a connecting pipe, and one end of the connecting pipe is connected and fixedly connected to a processing box; a first filter plate and a second filter plate are fixedly connected to the inner wall of the processing box in sequence, and the filter holes of the first filter plate are larger than the filter holes of the second filter plate; a rotating rod is provided in the processing box, and the rotating rod is rotatably connected to the first filter plate and the second filter plate through a bearing; a plurality of impellers are fixedly connected to the outer side wall of the rotating rod; and three cleaning brushes are fixedly connected to the outer side wall of the rotating rod.

[0016] Preferably, the rotating rod is fixed with a first U-shaped frame, a first scraper rod, a second U-shaped frame and a second scraper rod in sequence, the first U-shaped frame and the second U-shaped frame are in contact with the inner wall of the processing box respectively; the first scraper rod is in contact with the first filter plate; the second scraper rod is in contact with the second filter plate.

[0017] Preferably, the outer side wall of one end of the treatment box close to the cleaning brush is connected and fixedly connected with a water inlet pipe, and a water pump is installed on the water inlet pipe; and the bottom of the treatment box is fixedly connected with two second support seats.

[0018] Preferably, the bottom of the processing box is connected and fixedly connected with a sewage pipe, and a sewage discharge valve is installed on the sewage pipe.

[0019] Preferably, the bottom of the connecting pipe is connected and fixedly connected with a delivery pipe, a suction pump is installed on the delivery pipe, and a second control valve is installed at one end of the processing box.

[0020] Preferably, a cleaning agent is provided in the liquid storage box, and the components of the cleaning agent are composed of an acidic oxidant, an alkyl polyglucoside, an organic acid, a surfactant, a dispersant and water.

[0021] Preferably, the top of the ultrafiltration equipment housing is connected and fixedly connected to an air pipe, on which an air valve is installed; the top of the ultrafiltration equipment housing is fixedly connected to an L-shaped plate, on the top of the L-shaped plate is fixedly connected to an aerator, and the air pipe is connected and fixedly connected to the aerator.

[0022] Preferably, one end of the ultrafiltration equipment housing is connected and fixedly connected to a water outlet pipe, and a first control valve is installed on the water outlet pipe; and two first support seats are fixedly connected to the bottom of the ultrafiltration equipment housing.

[0023] The beneficial effects of the present invention are as follows:

[0024] 1. A tank type ultrafiltration device described in the present invention cooperates with the first gear, the second gear and the third gear; when too much dirt accumulates on the ultrafiltration membrane, the first control valve and the second control valve are closed, and then the motor is turned on, the motor drives the connecting shaft to rotate through the output shaft, drives the first gear to rotate through the connecting shaft, drives the second gear to rotate through the first gear, drives the hollow tube to rotate through the second gear, the hollow tube drives the sealing plate to rotate, the sealing plate drives the ultrafiltration membrane and the scraper to rotate, the ultrafiltration membrane is relatively soft in texture, and during the rotation process, the ultrafiltration membrane is impacted by water, and dirt falls off, thereby realizing the function of cleaning the ultrafiltration membrane, and improving the membrane processing capacity and life of the ultrafiltration membrane, the scraper contacts with the ultrafiltration device housing to remove dirt on the ultrafiltration device housing; when the second gear rotates, it drives the third gear to rotate, and drives the reciprocating screw to rotate through the third gear, and the reciprocating screw drives the sealing plate to reciprocate, and the sealing plate intermittently leaves the liquid storage box, and the cleaning agent in the liquid storage box flows out, cooperates with stirring to clean the ultrafiltration membrane, and improves the cleaning effect of the ultrafiltration membrane.

[0025] 2. A tank type ultrafiltration device according to the present invention, through the cooperation of the cleaning brush, the impeller, the first filter plate and the second filter plate, when the sewage passes through the treatment box, one end of the treatment box is provided with a step shape to slow down the flow rate of the water flow, and the water flow passes through the first filter plate and the second filter plate stably and smoothly, so as to facilitate the cleaning of large particles of impurities in the sewage. When the sewage flows, the impeller rotates under the action of the water flow, and the impeller drives the rotating rod to rotate, and the rotating rod drives the cleaning brush to rotate. When the cleaning brush rotates, the filamentary impurities in the sewage are curled to prevent the filamentary impurities from being entangled in the connecting pipe and the ultrafiltration membrane, which is inconvenient to clean and easily causes blockage; the first U-shaped frame, the first scraper, the second U-shaped frame and the second scraper are driven to rotate by the rotation of the rotating rod, and the first U-shaped frame and the second U-shaped frame are respectively in contact with the inner wall of the treatment box to clean the inner wall of the treatment box, and the first U-shaped frame, the first scraper, the second U-shaped frame and the second scraper are respectively in contact with the first filter plate and the second filter plate to clean the first filter plate and the second filter plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention will be further described below in conjunction with the accompanying drawings.

[0027] Figure 1 is a first stereogram of the present invention;

[0028] Figure 2 is a second stereogram of the present invention;

[0029] Figure 3 is a cross-sectional view of the present invention;

[0030] Figure 4 It is a schematic diagram of the structure of the sealing plate, the scraper and the ultrafiltration membrane in the present invention;

[0031] Figure 5 It is a structural schematic diagram of the scraper in the present invention;

[0032] Figure 6 It is a structural schematic diagram of a cross section of the liquid storage box in the present invention;

[0033] Figure 7 It is a structural schematic diagram of a cross section of a processing box in the present invention;

[0034] Figure 8 It is a schematic diagram of the structure of the first filter plate and the second filter plate in the present invention;

[0035] Fig. 9 It is a schematic diagram of the structure enlarged at A in the present invention;

[0036] In the figure: 1, ultrafiltration equipment housing; 11, first support seat; 12, flange; 13, water outlet pipe; 14, first control valve; 15, hollow tube; 16, sealing plate; 17, scraper; 18, ultrafiltration membrane; 2, treatment box; 21, first filter plate; 22, second filter plate; 23, rotating rod; 24, cleaning brush; 25, impeller; 26, first U-shaped frame; 27, second U-shaped frame; 28, first scraper; 29, second scraper; 210, first Two supporting seats; 211, sewage pipe; 212, sewage valve; 3, motor; 31, first gear; 32, connecting shaft; 33, second gear; 4, liquid storage box; 41, third gear; 42, side plate; 43, reciprocating screw rod; 44, blocking plate; 5, L-shaped plate; 51, aerator; 52, air pipe; 53, air valve; 6, water inlet pipe; 61, water pump; 7, connecting pipe; 71, second control valve; 72, delivery pipe; 73, suction pump. DETAILED DESCRIPTION

[0037] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0038] like Figures 1 to 9 As shown, a tank-type ultrafiltration device according to an embodiment of the present invention comprises: an ultrafiltration device housing 1; a hollow tube 15, which is rotatably connected to the inner wall of the ultrafiltration device housing 1 through a bearing; two sealing plates 16, which are symmetrically fixed to the two ends of the hollow tube 15; a plurality of ultrafiltration membranes 18, which are evenly connected to the two sealing plates 16; a cleaning mechanism, which is arranged inside the ultrafiltration device housing 1; the cleaning mechanism comprises a liquid storage box 4, which is connected and fixed to the ultrafiltration device housing 1; a second gear 33 is fixed to the outer side wall of the hollow tube 15; a motor 3 is fixed to the outer side wall of the top end of the housing; the output shaft of the motor 3 is fixed to a connecting shaft 32 The connecting shaft 32 is rotatably connected to the ultrafiltration device housing 1 through a bearing; a first gear 31 is fixedly connected to one end of the connecting shaft 32, and the first gear 31 is meshed with the second gear 33; a side plate 42 is rotatably connected to the side wall of the hollow tube 15 through a rotating shaft; a reciprocating screw rod 43 is rotatably connected to the top of the side plate 42 through a bearing, and a sealing plate 44 is threadedly connected to the top of the reciprocating screw rod 43; the sealing plate 44 moves in the liquid storage box 4; a third gear 41 is fixedly connected to the outer side wall of the reciprocating screw rod 43, and the third gear 41 is meshed with the second gear 33; a plug is installed at one end of the liquid storage box 4.

[0039] In the prior art, filtration can be performed through the ultrafiltration membrane 18, but after the ultrafiltration membrane 18 has been running for a period of time, the membrane surface and membrane pores of the ultrafiltration membrane 18 are easily clogged by pollutants, resulting in a gradual decrease in membrane flux, inability to continue filtering, and inconvenience in the continued flow of water treatment. Membrane pollution shortens the service life of the membrane;

[0040] When the cleaning mechanism provided by the present invention is in use, during the process of water treatment, the sewage is firstly flowed into the treatment box 2 through the water inlet pipe 6 to be pre-treated, and large particles of impurities in the sewage are removed, and then the sewage enters the ultrafiltration device housing 1 through the connecting pipe 7, and is adsorbed by the ultrafiltration membrane 18 in the ultrafiltration device housing 1 to remove small particles of impurities in the water, and then discharged from the outlet pipe 13, and the remaining dirt accumulates on the ultrafiltration membrane 18. When too much dirt accumulates on the ultrafiltration membrane 18, the first control valve 14 and the second control valve 71 are closed, and then the motor 3 is turned on, and the motor 3 drives the connecting shaft 32 to rotate through the output shaft, drives the first gear 31 to rotate through the connecting shaft 32, drives the second gear 33 to rotate through the first gear 31, and drives the second gear 33 to rotate through the second gear 33. The hollow tube 15 rotates, and the hollow tube 15 drives the sealing plate 16 to rotate, and the sealing plate 16 drives the ultrafiltration membrane 18 and the scraper 17 to rotate. The ultrafiltration membrane 18 is relatively soft in texture. During the rotation process, the ultrafiltration membrane 18 is impacted by water, and dirt falls off, thereby realizing the function of cleaning the ultrafiltration membrane 18 and improving the membrane processing capacity and life of the ultrafiltration membrane 18. The scraper 17 contacts the ultrafiltration equipment housing 1 to remove dirt on the ultrafiltration equipment housing 1; when the second gear 33 rotates, it drives the third gear 41 to rotate, and the reciprocating screw 43 is driven to rotate by the third gear 41. The reciprocating screw 43 drives the sealing plate 44 to reciprocate, and the sealing plate 44 intermittently leaves the liquid storage box 4, and the cleaning agent in the liquid storage box 4 flows out, and the ultrafiltration membrane 18 is cleaned with stirring, thereby improving the cleaning effect of the ultrafiltration membrane 18.

[0041] like Figure 4 and Figure 5 As shown, six scrapers 17 are fixedly connected to the outer wall of the hollow tube 15; the scrapers 17 are in contact with the inner wall of the ultrafiltration equipment housing 1; a plurality of through holes are evenly opened on the hollow tube 15, wherein the through holes on the same horizontal line are all arranged between adjacent scrapers 17, and the ultrafiltration plates are evenly arranged between adjacent scrapers 17.

[0042] When the scraper 17 provided by the present invention is in use, the hollow tube 15 rotates to drive the scraper 17 to rotate, and the scraper 17 continuously rubs the inner wall of the ultrafiltration equipment housing 1, thereby scraping some dirt from the inner wall of the ultrafiltration equipment housing 1 to prevent the dirt from adhering to the inner wall of the ultrafiltration equipment housing 1.

[0043] like Figure 3 and Figure 7As shown, both ends of the ultrafiltration equipment housing 1 are connected with flanges 12; one end of one of the flanges 12 is connected and fixedly connected with a connecting pipe 7, and one end of the connecting pipe 7 is connected and fixedly connected with a processing box 2; the first filter plate 21 and the second filter plate 22 are fixedly connected to the inner wall of the processing box 2 in sequence, and the filter holes of the first filter plate 21 are larger than the filter holes of the second filter plate 22; a rotating rod 23 is provided in the processing box 2, and the rotating rod 23 is rotatably connected to the first filter plate 21 and the second filter plate 22 through bearings; a plurality of impellers 25 are fixedly connected to the outer wall of the rotating rod 23; and three cleaning brushes 24 are fixedly connected to the outer wall of the rotating rod 23.

[0044] When the first filter plate 21 and the second filter plate 22 provided by the present invention are in use, when the sewage passes through the treatment box 2, one end of the treatment box 2 is provided with a step shape to slow down the flow rate of the water flow, so that the sewage passes through the first filter plate 21 and the second filter plate 22 stably and smoothly, which is convenient for cleaning large particles of impurities in the sewage. When the sewage flows, under the action of the water flow, the impeller 25 rotates, the impeller 25 drives the rotating rod 23 to rotate, and the rotating rod 23 drives the cleaning brush 24 to rotate. When the cleaning brush 24 rotates, the filamentary debris in the sewage is curled to prevent the filamentary debris from being entangled in the connecting pipe 7 and the ultrafiltration membrane 18, which is inconvenient to clean and easily causes blockage.

[0045] like Figure 8 As shown, the rotating rod 23 is fixedly connected with a first U-shaped frame 26, a first scraper rod 28, a second U-shaped frame 27 and a second scraper rod 29 in sequence. The first U-shaped frame 26 and the second U-shaped frame 27 are respectively in contact with the inner wall of the processing box 2; the first scraper rod 28 is in contact with the first filter plate 21; and the second scraper rod 29 is in contact with the second filter plate 22.

[0046] When in use, the first U-shaped frame 26, the first scraper 28, the second U-shaped frame 27 and the second scraper 29 provided by the present invention are rotated by the rotating rod 23 to drive the first U-shaped frame 26, the first scraper 28, the second U-shaped frame 27 and the second scraper 29 to rotate, and the first U-shaped frame 26 and the second U-shaped frame 27 are respectively in contact with the inner wall of the processing box 2 to clean the inner wall of the processing box 2, and the first U-shaped frame 26, the first scraper 28, the second U-shaped frame 27 and the second scraper 29 are respectively in contact with the first filter plate 21 and the second filter plate 22 to clean the first filter plate 21 and the second filter plate 22.

[0047] like Figure 3 As shown, the outer wall of one end of the treatment box 2 close to the cleaning brush 24 is connected and fixedly connected with a water inlet pipe 6, and a water pump 61 is installed on the water inlet pipe 6; the bottom of the treatment box 2 is fixedly connected with two second support seats 210.

[0048] When the water inlet pipe 6 provided by the present invention is in use, the sewage is transported to the treatment box 2 through the water inlet pipe 6 under the action of the water pump 61 to pre-treat the sewage.

[0049] like Figure 3 As shown, the bottom of the processing box 2 is connected and fixedly connected with a sewage pipe 211, and a sewage valve 212 is installed on the sewage pipe 211.

[0050] When the sewage pipe 211 provided by the present invention is in use, after a period of processing, there are many large particles of impurities in the processing box 2. If it is not cleaned in time, it is easy to cause the water flow in the processing box 2 to slow down. By opening the sewage valve 212, the large particles of impurities in the processing box 2 are discharged through the sewage pipe 211.

[0051] like Figure 3 As shown, the bottom of the connecting pipe 7 is connected and fixedly connected with a delivery pipe 72 , a suction pump 73 is installed on the delivery pipe 72 , and a second control valve 71 is installed at one end of the processing box 2 .

[0052] When the suction pump 73 provided by the present invention is in use, the suction pump 73 is mainly used for cleaning the ultrafiltration membrane 18, closing the second control valve 71, delivering clean water to flush the ultrafiltration membrane 18, and then pumping out the dirt.

[0053] like Figure 6 As shown, the liquid storage box 4 is provided with a cleaning agent, and the components of the cleaning agent are composed of an acidic oxidant, an alkyl polyglucoside, an organic acid, a surfactant, a dispersant and water.

[0054] When used, the cleaning agent provided by the present invention, in cooperation with the cleaning agent, better reacts with small particle impurities on the surface of the ultrafiltration membrane 18, improves the cleaning effect of the ultrafiltration membrane 18, thereby increasing the membrane flux of the ultrafiltration membrane 18 and extending the service life of the ultrafiltration membrane 18.

[0055] like Fig. 9 As shown, the top of the ultrafiltration equipment housing 1 is connected and fixedly connected with an air pipe 52, and an air valve 53 is installed on the air pipe 52; the top of the ultrafiltration equipment housing 1 is fixedly connected with an L-shaped plate 5, and the top of the L-shaped plate 5 is fixedly connected with an aerator 51, and the air pipe 52 is connected and fixedly connected to the aerator 51.

[0056] When the aerator 51 provided by the present invention is in use, during the cleaning process, by opening the air valve 53, the aerator 51 transports oxygen through the aeration pipe, and the oxygen enters the surface of the ultrafiltration membrane 18 and reacts with the aerobic microorganisms on the surface of the ultrafiltration membrane 18, thereby achieving the function of cleaning the microorganisms on the surface of the ultrafiltration membrane 18.

[0057] like Figure 1 to Figure 2 As shown, one end of the ultrafiltration device housing 1 is connected and fixedly connected to a water outlet pipe 13 , and a first control valve 14 is installed on the water outlet pipe 13 ; and two first support seats 11 are fixedly connected to the bottom of the ultrafiltration device housing 1 .

[0058] When the outlet pipe 13 provided by the present invention is in use, the sewage is filtered and purified after pretreatment and ultrafiltration treatment. By opening the first control valve 14, the water flows from the outlet pipe 13 to the next process, which is convenient for further treatment of the water.

[0059] Working principle: During the water treatment process, the sewage is firstly directed through the water inlet pipe 6 to flow into the treatment box 2 for pretreatment to remove large particles of impurities in the sewage; when the sewage passes through the treatment box 2, one end of the treatment box 2 is provided with a step shape to slow down the flow rate of the water flow, so that the water flows stably and smoothly through the first filter plate 21 and the second filter plate 22, so as to facilitate the removal of large particles of impurities in the sewage. When the sewage flows, the impeller 25 rotates under the action of the water flow, and the impeller 25 drives the rotating rod 23 to rotate, and the rotating rod 23 drives the cleaning brush 24 to rotate, and the cleaning brush 24 curls the filamentary impurities in the sewage when rotating. , to prevent filamentary debris from being entangled in the connecting pipe 7 and the ultrafiltration membrane 18, which is inconvenient to clean and easily causes blockage; the rotating rod 23 rotates to drive the first U-shaped frame 26, the first scraper 28, the second U-shaped frame 27 and the second scraper 29 to rotate, and the first U-shaped frame 26 and the second U-shaped frame 27 are respectively in contact with the inner wall of the processing box 2 to clean the inner wall of the processing box 2, and the first U-shaped frame 26, the first scraper 28, the second U-shaped frame 27 and the second scraper 29 are respectively in contact with the first filter plate 21 and the second filter plate 22 to clean the first filter plate 21 and the second filter plate 22;

[0060] Then it enters the ultrafiltration device housing 1 through the connecting pipe 7, is adsorbed by the ultrafiltration membrane 18 in the ultrafiltration device housing 1, removes small particles of impurities in the water, and then is discharged from the outlet pipe 13. The remaining dirt accumulates on the ultrafiltration membrane 18. When too much dirt accumulates on the ultrafiltration membrane 18, the first control valve 14 and the second control valve 71 are closed, and then the motor 3 is turned on. The motor 3 drives the connecting shaft 32 to rotate through the output shaft, drives the first gear 31 to rotate through the connecting shaft 32, drives the second gear 33 to rotate through the first gear 31, drives the hollow tube 15 to rotate through the second gear 33, the hollow tube 15 drives the sealing plate 16 to rotate, and the sealing plate 16 drives the ultrafiltration membrane 18 and the scraper 17 rotate, the ultrafiltration membrane 18 is relatively soft, and during the rotation process, the ultrafiltration membrane 18 is impacted by water, and dirt falls off, thereby realizing the function of cleaning the ultrafiltration membrane 18 and improving the membrane processing capacity and life of the ultrafiltration membrane 18. The scraper 17 contacts the ultrafiltration equipment housing 1 to remove dirt on the ultrafiltration equipment housing 1; when the second gear 33 rotates, it drives the third gear 41 to rotate, and the reciprocating screw 43 is driven to rotate by the third gear 41. The reciprocating screw 43 drives the sealing plate 44 to reciprocate, and the sealing plate 44 intermittently leaves the liquid storage box 4, and the cleaning agent in the liquid storage box 4 flows out, cooperates with stirring to clean the ultrafiltration membrane 18, and improves the cleaning effect of the ultrafiltration membrane 18.

[0061] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A tank type ultrafiltration device, comprising: Ultrafiltration device housing (1); The hollow tube (15) is rotatably connected to the inner wall of the ultrafiltration device housing (1) via a bearing; Two sealing plates (16) are symmetrically fixed to the two ends of the hollow tube (15); A plurality of ultrafiltration membranes (18) are evenly connected to the two sealing plates (16); A cleaning mechanism is arranged inside the ultrafiltration device housing (1); The cleaning mechanism is characterized in that: the cleaning mechanism comprises a liquid storage box (4), the liquid storage box (4) is connected and fixedly connected to the ultrafiltration device housing (1); the outer wall of the hollow tube (15) is fixedly connected to a second gear (33); the outer wall of the top end of the housing is fixedly connected to a motor (3); the output shaft of the motor (3) is fixedly connected to a connecting shaft (32), and the connecting shaft (32) is rotatably connected to the ultrafiltration device housing (1) through a bearing; one end of the connecting shaft (32) is fixedly connected to a first gear (31), and the first gear (31) is connected to the second gear (33). The gear (33) is meshed; a side plate (42) is rotatably connected to the side wall of the hollow tube (15) via a rotating shaft; a reciprocating screw rod (43) is rotatably connected to the top of the side plate (42) via a bearing, and a sealing plate (44) is threadedly connected to the top of the reciprocating screw rod (43); the sealing plate (44) moves in the liquid storage box (4); a third gear (41) is fixedly connected to the outer side wall of the reciprocating screw rod (43), and the third gear (41) is meshed with the second gear (33); a plug is installed at one end of the liquid storage box (4).

2. A tank type ultrafiltration device according to claim 1, characterized in that: Six scrapers (17) are fixedly connected to the outer wall of the hollow tube (15); the scrapers (17) are in contact with the inner wall of the ultrafiltration device housing (1); a plurality of through holes are evenly opened on the hollow tube (15), wherein the through holes on the same horizontal line are all arranged between adjacent scrapers (17), and the ultrafiltration plates are evenly arranged between adjacent scrapers (17).

3. A tank type ultrafiltration device according to claim 2, characterized in that: Both ends of the ultrafiltration device housing (1) are connected with flanges (12); one end of one of the flanges (12) is connected and fixedly connected to a connecting pipe (7), and one end of the connecting pipe (7) is connected and fixedly connected to a processing box (2); a first filter plate (21) and a second filter plate (22) are fixedly connected in sequence to the inner wall of the processing box (2), and the filter holes of the first filter plate (21) are larger than the filter holes of the second filter plate (22); a rotating rod (23) is provided in the processing box (2), and the rotating rod (23) is rotatably connected to the first filter plate (21) and the second filter plate (22) through a bearing; a plurality of impellers (25) are fixedly connected to the outer wall of the rotating rod (23); and three cleaning brushes (24) are fixedly connected to the outer wall of the rotating rod (23).

4. A tank type ultrafiltration device according to claim 3, characterized in that: The rotating rod (23) is fixedly connected in sequence with a first U-shaped frame (26), a first scraper rod (28), a second U-shaped frame (27) and a second scraper rod (29); the first U-shaped frame (26) and the second U-shaped frame (27) are respectively in contact with the inner wall of the processing box (2); the first scraper rod (28) is in contact with the first filter plate (21); and the second scraper rod (29) is in contact with the second filter plate (22).

5. A tank type ultrafiltration device according to claim 4, characterized in that: The outer wall of one end of the treatment box (2) close to the cleaning brush (24) is connected and fixedly connected to a water inlet pipe (6), and a water pump (61) is installed on the water inlet pipe (6); the bottom of the treatment box (2) is fixedly connected to two second support seats (210).

6. A tank type ultrafiltration device according to claim 5, characterized in that: The bottom of the processing box (2) is connected and fixedly connected to a sewage discharge pipe (211), and a sewage discharge valve (212) is installed on the sewage discharge pipe (211).

7. A tank type ultrafiltration device according to claim 6, characterized in that: The bottom of the connecting pipe (7) is connected and fixedly connected to a delivery pipe (72), a suction pump (73) is installed on the delivery pipe (72), and a second control valve (71) is installed at one end of the processing box (2).

8. A tank type ultrafiltration device according to claim 7, characterized in that: The liquid storage box (4) is provided with a cleaning agent, and the cleaning agent comprises components of an acidic oxidant, an alkyl polyglucoside, an organic acid, a surfactant, a dispersant and water.

9. A tank type ultrafiltration device according to claim 8, characterized in that: The top of the ultrafiltration equipment housing (1) is connected and fixedly connected to an air supply pipe (52), and an air valve (53) is installed on the air supply pipe (52); the top of the ultrafiltration equipment housing (1) is fixedly connected to an L-shaped plate (5), and the top of the L-shaped plate (5) is fixedly connected to an aerator (51), and the air supply pipe (52) is connected and fixedly connected to the aerator (51).

10. A tank type ultrafiltration device according to claim 9, characterized in that: One end of the ultrafiltration equipment housing (1) is connected and fixedly connected to a water outlet pipe (13), and a first control valve (14) is installed on the water outlet pipe (13); and the bottom of the ultrafiltration equipment housing (1) is fixedly connected to two first support seats (11).

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