Self-cleaning ultrafiltration device for boron-containing wastewater treatment

Abstract

The utility model discloses a self-cleaning ultrafiltration device for boron-containing wastewater treatment. The self-cleaning ultrafiltration device comprises a filter tank, a filter screen and an ultrafiltration membrane are sequentially arranged in an inner cavity of the filter box from top to bottom, and positioning frames are fixedly mounted on the surfaces of the filter screen and the ultrafiltration membrane; through the arrangement of the locking assembly, the filter screen and the ultrafiltration membrane can be installed and fixed in the inner cavity of the filter box, wastewater is primarily filtered through the filter screen and then secondarily filtered through the ultrafiltration membrane, and in the using process, the sliding seat and the cleaning brush can be driven to move through the driving assembly; the surface of the filter screen and the surface of the ultrafiltration membrane are brushed and cleaned to prevent the filter screen and the ultrafiltration membrane from being blocked, the ultrafiltration membrane and the filter screen in the device are detachably arranged and can be easily detached and replaced, and through the arrangement of the device, waste water can be filtered, and meanwhile, the waste water can be recycled. And the filter plate and the ultrafiltration membrane can be cleaned.

Description

TECHNICAL FIELD

[0001] The utility model relates to wastewater treatment technical field, concretely is a kind of for boron-containing wastewater treatment's self-cleaning type ultrafiltration device. BACKGROUND

[0002] Ultrafiltration (UF) device is an advanced membrane separation technology, solvent and various small solutes contained in feed liquid are permeated from high-pressure feed liquid side to low-pressure side through filter membrane, so that the permeate or called ultrafiltration liquid is obtained;Its ultrafiltration membrane micropore can reach below 0.01 microns (one hundred thousandth millimeter), can effectively remove the microparticle, colloid, bacteria, heat source and organic matter in water, and the solute molecule with size larger than membrane pore size is intercepted by membrane to concentrate liquid, and ultrafiltration device is also used in boron-containing wastewater treatment process.

[0003] The ultrafiltration device of traditional technology is provided with filter plate and ultrafiltration membrane in filter box, impurities in wastewater are easy to block filter plate and ultrafiltration membrane in long-time use process, so that water flow cannot pass through filter plate and ultrafiltration membrane smoothly, and its filtering effect is also weakened. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of for boron-containing wastewater treatment's self-cleaning type ultrafiltration device to solve the problems presented in the above background.

[0005] To achieve the above object, the utility model provides a kind of for boron-containing wastewater treatment's self-cleaning type ultrafiltration device, including filter box;

[0006] The inner chamber of the filter box is sequentially provided with filter screen and ultrafiltration membrane from top to bottom, the surface of filter screen and ultrafiltration membrane is fixedly installed with positioning frame, the surface of positioning frame is slidably connected with the inner chamber of filter box, and one side of positioning frame is fixedly installed with pull plate extending to the outside of filter box and penetrating through filter box;

[0007] Locking assembly for fixing the use position of positioning frame is further provided between pull plate and filter box, cleaning assembly for brushing the surface of filter screen and ultrafiltration membrane is further provided between filter screen and ultrafiltration membrane.

[0008] In one embodiment, the cleaning assembly includes sliding seat slidably installed in the inner chamber of filter box, cleaning brush is fixedly installed on the upper and lower sides of sliding seat, the bristles of two groups of cleaning brush are respectively in contact with the surface of filter screen and ultrafiltration membrane, driving assembly for driving sliding seat to move is further installed on the surface of filter box, guiding assembly for improving the movement stability of sliding seat and filter box is further provided between sliding seat and filter box.

[0009] In one embodiment, the driving assembly comprises a driving motor fixedly installed on one side of the filter box, an output shaft of the driving motor penetrates through the filter box and extends to the inner cavity of the filter box, a driving lead screw is fixedly installed on the output shaft of the driving motor, and the driving lead screw is rotatably connected to the inner wall of the filter box at an end away from the driving motor.

[0010] In one embodiment, the guiding assembly comprises two groups of guiding rods fixedly installed in the inner cavity of the filter box, and guiding holes are formed in the surface of the sliding seat and located at the corresponding positions of the guiding rods, and the inner wall of the guiding hole is slidably connected to the surface of the guiding rod.

[0011] In one embodiment, the locking assembly comprises locking plates fixedly installed on both sides of the pulling plate, and a locking rod is arranged on one side of the locking plate, one end of the locking rod penetrates through the locking plate and extends to the outside of the locking plate and is threadedly connected to the surface of the filter box.

[0012] In one embodiment, a sealing ring is fixedly installed on the back surface of the pulling plate, and the side of the sealing ring away from the pulling plate is attached to the surface of the filter box.

[0013] In one embodiment, the top of the filter box is communicated with a water inlet pipe, the bottom of one side of the filter box is communicated with a drain pipe, and a control valve is installed on each of the water inlet pipe and the drain pipe.

[0014] In one embodiment, sliding rails are fixedly installed on the front and rear sides of the inner cavity of the filter box and located at the corresponding positions of the positioning frame, and the front and rear sides of the positioning frame are slidably connected to the inner walls of the corresponding sliding rails.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The filter screen and the ultrafiltration membrane are installed and fixed in the inner cavity of the filter box through the locking assembly, waste water is first subjected to primary filtration through the filter screen and then subjected to secondary filtration through the ultrafiltration membrane, in the use process, the sliding seat and the cleaning brush are driven to move through the driving assembly, the surface of the filter screen and the ultrafiltration membrane is cleaned, so that the problem of blockage of the filter screen and the ultrafiltration membrane is prevented, and the ultrafiltration membrane and the filter screen are detachably arranged in the device, so that they can be easily disassembled and replaced, and the filter plate and the ultrafiltration membrane can be cleaned while the waste water is filtered through the arrangement of the device. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic view of the utility model;

[0018] Figure 2 It is a structural schematic view of the utility model when the filter screen and the ultrafiltration membrane are disassembled;

[0019] Figure 3 It is the structure schematic view of the filter box inside the utility model;

[0020] Figure 4 It is the structure schematic view of the driving assembly of the utility model.

[0021] In the drawing:

[0022] 1, filter box;

[0023] 2, filter screen;

[0024] 3, ultrafiltration membrane;

[0025] 4, positioning frame;

[0026] 5, pull plate;

[0027] 6, slide;

[0028] 7, cleaning brush;

[0029] 8, driving motor;

[0030] 9, drive screw;

[0031] 10, guide rod;

[0032] 11, guide hole;

[0033] 12, locking plate;

[0034] 13, locking rod;

[0035] 14, sealing ring;

[0036] 15, water inlet pipe;

[0037] 16, drain pipe;

[0038] 17, control valve;

[0039] 18, slide rail. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0041] Please refer to Figures 1-4The utility model provides a kind of self-cleaning type ultrafiltration device for boron-containing wastewater treatment, including filter box 1, the top of filter box 1 is connected with water inlet pipe 15, the bottom of one side of filter box 1 is connected with drain pipe 16, control valve 17 is uniformly installed on water inlet pipe 15 and drain pipe 16, the inner chamber of filter box 1 is sequentially provided with filter screen 2 and ultrafiltration membrane 3 from top to bottom, the surface of filter screen 2 and ultrafiltration membrane 3 is fixedly installed with positioning frame 4, the surface of positioning frame 4 is slidably connected with the inner chamber of filter box 1, and one side of positioning frame 4 is fixedly installed with pull plate 5, which extends to the outside of filter box 1 and penetrates filter box 1.

[0042] In the embodiment, the user can connect the water inlet pipe 15 to the wastewater discharge pipe, and the wastewater enters the inner chamber of the filter box 1 through the water inlet pipe 15. The wastewater is first filtered by the filter screen 2 and then filtered again by the ultrafiltration membrane 3. When the filter screen 2 and the ultrafiltration membrane 3 need to be replaced after long-term use, the user can pull the pull plate 5 to remove the filter screen 2 and the ultrafiltration membrane 3 from the filter box 1 for replacement. The control valve 17 can be used to control the opening and closing of the water inlet pipe 15 and the drain pipe 16.

[0043] As an option, a locking assembly is provided between the pull plate 5 and the filter box 1 to fix the use position of the positioning frame 4. The locking assembly includes locking plates 12 fixedly installed on both sides of the pull plate 5. The locking plates 12 are provided with locking rods 13 on one side. One end of the locking rod 13 penetrates the locking plate 12 and extends to the outside of the locking plate 12 and is threadedly connected with the surface of the filter box 1. By the arrangement of the locking assembly, when the filter screen 2 and the ultrafiltration membrane 3 are installed in the inner chamber of the filter box 1, one side of the pull plate 5 will be attached to the surface of the filter box 1. At this time, the user can tighten the locking rod 13 to lock and fix the pull plate 5 and the filter box 1 together, thereby positioning the use position of the filter screen 2 and the ultrafiltration membrane 3.

[0044] The back surface of the pull plate 5 is fixedly installed with a sealing ring 14, and the side of the sealing ring 14 away from the pull plate 5 is attached to the surface of the filter box 1. By the arrangement of the sealing ring 14, the connection between the positioning frame 4 and the filter box 1 can be sealed to prevent water from seeping. The front and rear sides of the inner chamber of the filter box 1 and located at the corresponding positions of the positioning frame 4 are fixedly installed with sliding rails 18. The front and rear sides of the positioning frame 4 are slidably connected with the inner walls of the corresponding sliding rails 18. By the arrangement of the sliding rails 18, the positioning frame 4 can be assisted and supported, and the stability of movement can be improved. When the positioning frame 4 moves, the front and rear sides will slide in the inner walls of the sliding rails 18.

[0045] It is worth mentioning that the cleaning assembly for cleaning the surface of the filter screen 2 and the ultrafiltration membrane 3 is further arranged between the filter screen 2 and the ultrafiltration membrane 3, the cleaning assembly comprises a sliding seat 6 slidingly arranged in the inner cavity of the filter box 1, the upper and lower sides of the sliding seat 6 are fixedly provided with cleaning brushes 7, the bristles of the two groups of cleaning brushes 7 are respectively in contact with the surfaces of the filter screen 2 and the ultrafiltration membrane 3, the surface of the filter box 1 is further provided with a driving assembly for driving the sliding seat 6 to move, the driving assembly comprises a driving motor 8 fixedly arranged on one side of the filter box 1, the output shaft of the driving motor 8 penetrates through the filter box 1 and extends into the inner cavity of the filter box 1 and is fixedly provided with a driving lead screw 9, the end of the driving lead screw 9 away from the driving motor 8 is rotatably connected with the inner wall of the filter box 1, and the surface of the driving lead screw 9 is threadedly connected with the inside of the sliding seat 6.

[0046] In use, the output shaft of the driving motor 8 drives the driving lead screw 9 to rotate, thereby driving the sliding seat 6 to move, and the cleaning brushes 7 are driven to move by the sliding seat 6, so that the surfaces of the filter screen 2 and the ultrafiltration membrane 3 are cleaned to prevent the surfaces from being blocked.

[0047] Further, the guiding assembly for improving the movement stability of the sliding seat 6 is further arranged between the sliding seat 6 and the filter box 1, the guiding assembly comprises two groups of guiding rods 10 fixedly arranged in the inner cavity of the filter box 1, the surface of the sliding seat 6 and located at the corresponding positions of the guiding rods 10 is provided with guiding holes 11, and the inner walls of the guiding holes 11 are slidingly connected with the surfaces of the guiding rods 10. Through the arrangement of the guiding assembly, the stability of the movement of the sliding seat 6 in the filter box 1 can be improved, and the guiding holes 11 are driven to slide on the surfaces of the guiding rods 10 when the sliding seat 6 moves.

[0048] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A self-cleaning ultrafiltration device for boron-containing wastewater treatment, comprising a filter box (1), characterized in that: the inner cavity of the filter box (1) is sequentially provided with a filter screen (2) and an ultrafiltration membrane (3) from top to bottom, and the surfaces of the filter screen (2) and the ultrafiltration membrane (3) are fixedly provided with positioning frames (4); the surface of the positioning frame (4) is slidably connected with the inner cavity of the filter box (1), and one side of the positioning frame (4) penetrates through the filter box (1) and extends to the outside of the filter box (1) and is fixedly provided with a pull plate (5); a locking assembly is further arranged between the pull plate (5) and the filter box (1) for fixing the use position of the positioning frame (4), and a cleaning assembly is further arranged between the filter screen (2) and the ultrafiltration membrane (3) for cleaning the surfaces thereof.

2. The self-cleaning ultrafiltration device for boron-containing wastewater treatment according to claim 1, characterized in that: the cleaning assembly comprises a sliding seat (6) slidably arranged in the inner cavity of the filter box (1), and cleaning brushes (7) are fixedly arranged on the upper and lower sides of the sliding seat (6), and the bristles of the two groups of cleaning brushes (7) are respectively in contact with the surfaces of the filter screen (2) and the ultrafiltration membrane (3); the surface of the filter box (1) is further provided with a driving assembly for driving the sliding seat (6) to move, and a guide assembly is further arranged between the sliding seat (6) and the filter box (1) for improving the movement stability thereof.

3. The self-cleaning ultrafiltration device for boron-containing wastewater treatment according to claim 2, characterized in that: the driving assembly comprises a driving motor (8) fixedly arranged on one side of the filter box (1), and a driving lead screw (9) is fixedly arranged on the output shaft of the driving motor (8) and penetrates through the filter box (1) and extends into the inner cavity of the filter box (1).

4. The self-cleaning ultrafiltration device for boron-containing wastewater treatment according to claim 2, characterized in that: the guide assembly comprises two groups of guide rods (10) fixedly arranged in the inner cavity of the filter box (1), and a guide hole (11) is formed in the surface of the sliding seat (6) and located at the corresponding position of the guide rods (10), and the inner wall of the guide hole (11) is slidably connected with the surface of the guide rod (10).

5. The self-cleaning ultrafiltration device for boron-containing wastewater treatment according to claim 1, characterized in that: the locking assembly comprises locking plates (12) fixedly arranged on both sides of the pull plate (5), and a locking rod (13) is arranged on one side of the locking plate (12), and one end of the locking rod (13) penetrates through the locking plate (12) and extends to the outside of the locking plate (12) and is threadedly connected with the surface of the filter box (1).

6. The self-cleaning ultrafiltration device for boron-containing wastewater treatment according to claim 1, characterized in that: a sealing ring (14) is fixedly arranged on the back surface of the pull plate (5), and one side of the sealing ring (14) away from the pull plate (5) is attached to the surface of the filter box (1). ​ ​ ​ ​ ​ ​ ​ ​ ​ 7. The self-cleaning ultrafiltration device for boron-containing wastewater treatment according to claim 1, characterized in that: the top of the filter box (1) is communicated with a water inlet pipe (15), the bottom of one side of the filter box (1) is communicated with a drain pipe (16), and a control valve (17) is installed on each of the water inlet pipe (15) and the drain pipe (16).

8. The self-cleaning ultrafiltration device for boron-containing wastewater treatment according to claim 1, characterized in that: the front and back sides of the inner cavity of the filter box (1) and the corresponding positions of the positioning frame (4) are fixedly installed with sliding rails (18), and the front and back sides of the positioning frame (4) are slidingly connected with the inner walls of the corresponding sliding rails (18). ​ ​

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