Multiphase flow micro-nano air flotation ultrafiltration device

Abstract

The utility model relates to the field of water treatment equipment, in particular to a multiphase flow micro-nano air floatation ultrafiltration device which comprises a water treatment box body, an equipment area is arranged at the bottom of the water treatment box body, and a water inlet area, a flocculation area, a water distribution area, a contact area, an air floatation area and a separation area are sequentially arranged at the top of the water treatment box body from left to right. A multi-phase flow micro-nano bubble generation system is arranged in the equipment area, a bubble release pipe is fixedly connected to the bottom of the air floatation area, the multi-phase flow micro-nano bubble generation system is connected with the air floatation area through the bubble release pipe, a slag collection box is fixedly arranged on one side of the water treatment box body and communicates with the separation area, a plurality of ultrafiltration membrane boxes are fixedly arranged in the separation area, and the ultrafiltration membrane boxes are communicated with the air floatation area. A slag scraping mechanism is fixedly arranged at the top of the separation area, a driving mechanism is fixedly arranged at the top of the slag collecting box, the driving mechanism controls the slag scraping mechanism to operate, and the device has the advantages of being good in air flotation effect, simple in structure and small in occupied area.

Description

Technical Field

[0001] The utility model relates to the field of water treatment equipment, in particular to a multiphase flow micro-nano air flotation ultrafiltration device. Background Art

[0002] At present, in the field of water treatment and purification, many water purification plants directly use the water in the reservoir as raw water and purify the water in the reservoir through filtration and purification. However, the traditional flotation process has a complex dissolved air system, the bubble diameter is large and uneven, the system energy consumption is high, and the flotation effect is unstable. In addition, the water in the reservoir generally has the characteristics of high algae in summer and low temperature and low turbidity in winter, which leads to poor traditional coagulation and sedimentation treatment effect and high consumption of reagents. It will also cause frequent fouling and blockage in the subsequent ultrafiltration process. Therefore, a multiphase flow micro-nano flotation ultrafiltration device is needed to solve the problems of poor flotation effect and high system energy consumption of existing flotation devices. Utility Model Content

[0003] The utility model aims to provide a multiphase flow micro-nano flotation ultrafiltration device, which solves the problem of unstable effect of traditional flotation process and avoids the problem of fouling of ultrafiltration membrane caused by unstable flotation effect, and has the advantages of good flotation effect, simple structure and small footprint.

[0004] The utility model aims to provide a multiphase flow micro-nano flotation ultrafiltration device, comprising a water treatment box body, an equipment area is arranged at the bottom of the water treatment box body, and a water inlet area, a flocculation area, a water distribution area, a contact area, a flotation area and a separation area are arranged in sequence on the top from left to right, the water inlet area, the flocculation area, the water distribution area, the contact area, the flotation area and the separation area are all separated by a partition, a folding plate flocculation box is slidably arranged in the flocculation area, a multiphase flow micro-nano bubble generating system is arranged in the equipment area, a bubble release tube is fixedly connected to the bottom of the flotation area, the multiphase flow micro-nano bubble generating system is connected to the flotation area through the bubble release tube, a slag collecting box is fixedly arranged on one side of the water treatment box body, the slag collecting box is communicated with the separation area, a plurality of ultrafiltration membrane boxes are fixedly arranged in the separation area, a slag scraping mechanism is fixedly arranged on the top of the separation area, a driving mechanism is fixedly arranged on the top of the slag collecting box, and the driving mechanism controls the operation of the slag scraping mechanism.

[0005] Furthermore, the scraping mechanism includes an active roller and a driven roller, both ends of which are fixedly provided with rotating shafts, the active roller and the driven roller are both rotatably arranged at the top of the separation zone, a conveyor belt is sleeved on the active roller and the driven roller, and a plurality of scrapers are evenly arranged on the surface of the conveyor belt, and the rotating shaft at one end of the active roller passes through the separation zone and is fixedly connected to the driving mechanism.

[0006] Furthermore, the driving mechanism includes a driving motor, pulley one and pulley two. The driving motor is fixedly arranged on the top of the slag collecting box. Pulley one is fixedly connected to the output end of the driving motor. Pulley two is fixedly connected to the rotating shaft at one end of the active roller. Belts are provided on pulley one and pulley two.

[0007] Furthermore, a sewage collection box is fixedly arranged in the equipment area, and sewage pipes are fixedly connected to the bottom of the flocculation area and the water distribution area, and the other ends of the sewage pipes are connected to the sewage collection box.

[0008] Furthermore, a plurality of flocculation folding plates are fixedly arranged in the folding plate flocculation box, sliders are fixedly arranged on both sides of the folding plate flocculation box, sliding grooves are opened on the inner walls on both sides of the flocculation area, and the folding plate flocculation box is slidably arranged in the flocculation area through the sliders and the sliding grooves.

[0009] Furthermore, solenoid valves are embedded at the bottom of the flocculation zone and the water distribution zone, and a one-way valve is embedded at the bottom of the flotation zone. The flocculation zone and the water distribution zone are connected to the sewage pipe through the solenoid valve, and the flotation zone is connected to the bubble release pipe through the one-way valve.

[0010] Furthermore, an opening is fixedly provided on one side of the slag collecting box, and the slag collecting box is connected with the separation zone through the opening.

[0011] The working principle and use principle of the utility model are as follows: the device conveys raw water to the water inlet area through a water inlet pipe matched with the water inlet area, uniformly distributes the raw water to the flocculation area through the water delivery port at the bottom of the water inlet area, performs flocculation and filtration through the folded plate flocculation box in the flocculation area, and the mud discharge pipe at the bottom of the flocculation area can discharge the accumulated mud into the sewage collection box, the raw water treated in the flocculation area further enters the water distribution area, and is again conveyed to the contact area through uniform water distribution in the water distribution area, in the contact area, the gas-containing water generated by the multiphase flow micro-nano bubble generation system is first released into the contact area through the air flotation release pipe and fully contacts with the water to absorb impurities such as floating objects in the water, and then the water treated in the air flotation area is again conveyed to the separation area, in the separation area, the pollutants float up under the action of the multiphase flow micro-nano bubble generation system, and the pollutants are collected and discharged into the slag collection box through the scraping mechanism, and the clean water in the lower layer enters the ultrafiltration membrane box for further filtration, and finally the filtered water is discharged from the device through the drain port.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the device processes raw water in sequence through the flocculation zone, the water distribution zone, the contact zone and the separation zone, and the pollutants floating on the upper layer can be collected and discharged through the scraping mechanism, thereby improving the filtering effect of the ultrafiltration membrane box and extending the service life of the ultrafiltration membrane box. It has the advantages of good flotation effect, simple structure and small footprint.

[0013] The overall height of the device can be adjusted to meet various usage requirements, and the double-roller linkage crushing improves the crushing effect. The two crushing chambers crush the ore separately, increasing the crushing efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of a multiphase flow micro-nano flotation ultrafiltration device of the utility model;

[0015] Figure 2 This is a cross-sectional view of the overall structure of a multiphase flow micro-nano flotation ultrafiltration device of the utility model;

[0016] Figure 3 This is a schematic diagram of the scraping mechanism and driving mechanism of a multiphase flow micro-nano air flotation ultrafiltration device of the utility model:

[0017] Figure 4 It is a schematic diagram of the enlarged structure of location A of a multiphase flow micro-nano flotation ultrafiltration device of the utility model.

[0018] Explanation of the reference numerals: 1. water treatment tank body; 2. equipment area; 21. sewage collection tank; 211. sewage pipe; 212. solenoid valve; 22. multiphase flow micro-nano bubble generation system; 221. bubble release tube; 222. one-way valve; 3. water inlet area; 4. flocculation area; 41. folded plate flocculation box; 411. flocculation folded plate; 412. slider; 413. chute; 5. water distribution area; 6. contact area; 7. flotation area; 8. separation area; 81. ultrafiltration membrane box; 9. slag collection box; 91. opening; 10. slag scraping mechanism; 101. active roller; 102. driven roller; 103. rotating shaft; 104. conveyor belt; 105. scraper; 11. driving mechanism; 111. driving motor; 112. pulley one; 113. pulley two; 114. belt. DETAILED DESCRIPTION

[0019] according to Figure 1 and Figure 2As shown, a multiphase flow micro-nano flotation ultrafiltration device comprises a water treatment box body 1, an equipment area 2 is arranged at the bottom of the water treatment box body 1, and a water inlet area 3, a flocculation area 4, a water distribution area 5, a contact area 6, a flotation area 7 and a separation area 8 are arranged on the top from left to right, the water inlet area 3, the flocculation area 4, the water distribution area 5, the contact area 6, the flotation area 7 and the separation area 8 are separated by a partition, a folding plate flocculation box 41 is slidably arranged in the flocculation area 4, a multiphase flow micro-nano bubble generating system 22 is arranged in the equipment area 2, a bubble release tube 221 is fixedly connected to the bottom of the flotation area 7, and the multiphase flow micro-nano bubble generating system 22 is connected to the flotation area 7 through the bubble release tube 221, a slag collecting box 9 is fixedly arranged on one side of the water treatment box body 1, and the slag collecting box 9 is communicated with the separation area 8. A plurality of ultrafiltration membrane boxes 81 are fixedly arranged, a scraping mechanism 10 is fixedly arranged on the top of the separation zone 8, and a driving mechanism 11 is fixedly arranged on the top of the slag collecting box 9, and the driving mechanism 11 controls the operation of the scraping mechanism 10; a sewage collecting box 21 is fixedly arranged in the equipment area 2, and a sewage pipe 211 is fixedly connected to the bottom of the flocculation zone 4 and the water distribution zone 5, and the other end of the sewage pipe 211 is connected to the sewage collecting box 21; a solenoid valve 212 is embedded in the bottom of the flocculation zone 4 and the water distribution zone 5, and a one-way valve 222 is embedded in the bottom of the flotation zone 7, the flocculation zone 4 and the water distribution zone 5 are connected to the sewage pipe 211 through the solenoid valve 212, and the flotation zone 7 is connected to the bubble release pipe 221 through the one-way valve 222; an opening 91 is fixedly arranged on one side of the slag collecting box 9, and the slag collecting box 9 is connected to the separation zone 8 through the opening 91.

[0020] In the specific implementation, the water treatment box body 1 is separated by a partition to separate the water inlet area 3, the flocculation area 4, the water distribution area 5, the contact area 6, the flotation area 7 and the separation area 8, and the partitions between the water inlet area 3 and the flocculation area 4, and between the flocculation area 4 and the water distribution area 5 are provided with water inlets. The partitions of the water distribution area 5, the contact area 6, the flotation area 7 and the separation area 8 can be set to different heights according to actual use conditions. The multiphase flow micro-nano bubble generating system 22 can adopt a Chinese patent with publication number CN113648915A that discloses a micro-nano bubble generating system. The water inlet area 3 and the water distribution area 5 are respectively provided with a raw water inlet pipe and a water distribution pipe used in conjunction with them. The raw water that needs to be treated can be transported into the device through the raw water inlet pipe and the water distribution pipe, and reasonable water distribution can be carried out. The micro-nano bubble generating system 22 generates Nanobubbles are transported to the contact area 6 through the bubble release system to be mixed with the raw water for treatment. The solenoid valve 212 can be of ZQDF-B series. The solenoid valve 212 is used to control the opening and closing of the sewage pipe 211 to discharge the sludge in the flocculation area 4 and the water distribution area 5 into the sewage collection tank 21. The one-way valve 222 can be of RD series, and the flow direction of the one-way valve 222 is from the bubble release system toward the flotation area 7. The scraping mechanism 10 is arranged on the top of the separation area 8 and the scraping mechanism 10 is flush with the horizontal sheet of the water treatment. The scraping mechanism 10 is controlled by the driving mechanism 11 to scrape the suspended matter floating on the upper surface of the water to the slag collection box 9 and collect it. The ultrafiltration membrane is arranged in the ultrafiltration membrane box 81. The ultrafiltration membrane in the ultrafiltration membrane box 81 further filters the tiny impurities in the water to improve the effect of water treatment.

[0021] according to Figure 3 As shown, the scraping mechanism 10 includes an active roller 101 and a driven roller 102, both ends of the active roller 101 and the driven roller 102 are fixedly provided with a rotating shaft 103, the active roller 101 and the driven roller 102 are both rotatably arranged at the top of the separation zone 8 through the rotating shaft 103, the active roller 101 and the driven roller 102 are sleeved with a conveyor belt 104, and a plurality of scrapers 105 are evenly arranged on the surface of the transmission belt, the rotating shaft 103 at one end of the active roller 101 passes through the separation zone 8 and is fixedly connected to the driving mechanism 11; the driving mechanism 11 includes a driving motor 111, a pulley 1 112 and a pulley 2 113, the driving motor 111 is fixedly arranged on the top of the slag collecting box 9, the pulley 1 112 is fixedly connected to the output end of the driving motor 111, the pulley 2 113 is fixedly connected to the rotating shaft 103 at one end of the active roller 101, and the pulley 1 112 and the pulley 2 113 are sleeved with a belt 114.

[0022] During the specific implementation, the driving motor 111 controls the pulley 112 to rotate, and the rotating pulley 112 drives the belt 114 to rotate. The rotating belt 114 further controls the pulley 2 113 to rotate the rotating shaft 103. The rotating pulley 2 113 drives the active roller 101 set in the separation area 8 to rotate. The rotating active roller 101 further drives the driven roller 102 to rotate through the conveyor belt 104. A plurality of scrapers 105 are arranged on the conveyor belt 104. The rotating conveyor belt 104 utilizes the scrapers 105 to continuously transport the suspended matter floating on the upper layer of the water to the slag collecting box 9 for collection.

[0023] according to Figure 4 As shown, a plurality of flocculation folding plates 411 are fixedly arranged in the folding plate flocculation box 41, sliders 412 are fixedly arranged on both sides of the folding plate flocculation box 41, and slide grooves 413 are opened on the inner walls on both sides of the flocculation area 4. The folding plate flocculation box 41 is slidably arranged in the flocculation area 4 through the sliders 412 and the slide grooves 413.

[0024] In a specific implementation, a plurality of flocculation folding plates 411 can be provided, and sliders 412 on both sides of the flocculation box are slidably arranged in the slide grooves 413 on the inner wall of the flocculation area 4. The folding plate flocculation box 41 is limited by the sliders 412 and the slide grooves 413, and the folding plate flocculation box 41 is conveniently taken out and installed, thereby facilitating the replacement and maintenance of the folding plate flocculation box 41 and the flocculation folding plates 411.

Claims

1. A multiphase flow micro-nano flotation ultrafiltration device, comprising a water treatment tank body (1), characterized in that: The water treatment tank body (1) is provided with an equipment area (2) at the bottom, and a water inlet area (3), a flocculation area (4), a water distribution area (5), a contact area (6), an air flotation area (7) and a separation area (8) are provided at the top in order from left to right. The water inlet area (3), the flocculation area (4), the water distribution area (5), the contact area (6), the air flotation area (7) and the separation area (8) are all separated by a partition. A folding plate flocculation box (41) is slidably provided in the flocculation area (4). A multiphase flow micro-nano bubble generating system (22) is provided in the equipment area (2). The bottom of the air flotation area (7) is provided with a plurality of micro-nano bubbles. A bubble release tube (221) is fixedly connected, and the multiphase flow micro-nano bubble generation system (22) is connected to the flotation zone (7) via the bubble release tube (221); a slag collecting box (9) is fixedly arranged on one side of the water treatment box body (1); the slag collecting box (9) is connected to the separation zone (8); a plurality of ultrafiltration membrane boxes (81) are fixedly arranged in the separation zone (8); a slag scraping mechanism (10) is fixedly arranged on the top of the separation zone (8); a driving mechanism (11) is fixedly arranged on the top of the slag collecting box (9); and the driving mechanism (11) controls the operation of the slag scraping mechanism (10).

2. A multiphase flow micro-nano flotation ultrafiltration device according to claim 1, characterized in that: The scraping mechanism (10) comprises an active roller (101) and a driven roller (102), both ends of which are fixedly provided with a rotating shaft (103), the active roller (101) and the driven roller (102) are both rotatably arranged at the top of the separation zone (8) via the rotating shaft (103), a conveyor belt (104) is sleeved on the active roller (101) and the driven roller (102), a plurality of scrapers (105) are evenly arranged on the surface of the conveyor belt, and the rotating shaft (103) at one end of the active roller (101) passes through the separation zone (8) and is fixedly connected to the driving mechanism (11).

3. A multiphase flow micro-nano flotation ultrafiltration device according to claim 1 or 2, characterized in that: The driving mechanism (11) comprises a driving motor (111), a first pulley (112) and a second pulley (113); the driving motor (111) is fixedly arranged on the top of the slag collecting box (9); the first pulley (112) is fixedly connected to the output end of the driving motor (111); the second pulley (113) is fixedly connected to the rotating shaft (103) at one end of the driving roller (101); and a belt (114) is sleeved on the first pulley (112) and the second pulley (113).

4. A multiphase flow micro-nano flotation ultrafiltration device according to claim 1 or 2, characterized in that: A sewage collection tank (21) is fixedly arranged in the equipment area (2), and sewage discharge pipes (211) are fixedly connected to the bottoms of the flocculation area (4) and the water distribution area (5), and the other ends of the sewage discharge pipes (211) are connected to the sewage collection tank (21).

5. The multiphase flow micro-nano flotation ultrafiltration device according to claim 3, characterized in that: A sewage collection tank (21) is fixedly arranged in the equipment area (2), and sewage discharge pipes (211) are fixedly connected to the bottoms of the flocculation area (4) and the water distribution area (5), and the other ends of the sewage discharge pipes (211) are connected to the sewage collection tank (21).

6. A multiphase flow micro-nano flotation ultrafiltration device according to claim 1, 2 or 5, characterized in that: A plurality of flocculation folding plates (411) are fixedly arranged in the folding plate flocculation box (41), sliding blocks (412) are fixedly arranged on both sides of the folding plate flocculation box (41), sliding grooves (413) are provided on the inner walls on both sides of the flocculation area (4), and the folding plate flocculation box (41) is slidably arranged in the flocculation area (4) via the sliding blocks (412) and the sliding grooves (413).

7. The multiphase flow micro-nano flotation ultrafiltration device according to claim 3, characterized in that: A plurality of flocculation folding plates (411) are fixedly arranged in the folding plate flocculation box (41), sliding blocks (412) are fixedly arranged on both sides of the folding plate flocculation box (41), sliding grooves (413) are provided on the inner walls on both sides of the flocculation area (4), and the folding plate flocculation box (41) is slidably arranged in the flocculation area (4) via the sliding blocks (412) and the sliding grooves (413).

8. The multiphase flow micro-nano flotation ultrafiltration device according to claim 4, characterized in that: A plurality of flocculation folding plates (411) are fixedly arranged in the folding plate flocculation box (41), sliding blocks (412) are fixedly arranged on both sides of the folding plate flocculation box (41), sliding grooves (413) are provided on the inner walls on both sides of the flocculation area (4), and the folding plate flocculation box (41) is slidably arranged in the flocculation area (4) via the sliding blocks (412) and the sliding grooves (413).

9. The multiphase flow micro-nano flotation ultrafiltration device according to claim 4, characterized in that: The bottoms of the flocculation zone (4) and the water distribution zone (5) are both embedded with electromagnetic valves (212), and the bottom of the flotation zone (7) is embedded with a one-way valve (222); the flocculation zone (4) and the water distribution zone (5) are connected to the sewage discharge pipe (211) via the electromagnetic valve (212), and the flotation zone (7) is connected to the bubble release pipe (221) via the one-way valve (222).

10. A multiphase flow micro-nano flotation ultrafiltration device according to claim 1, 2, 5, 7, 8 or 9, characterized in that: An opening (91) is fixedly provided on one side of the slag collecting box (9), and the slag collecting box (9) is connected to the separation zone (8) through the opening (91).

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