Membrane separation device for treating pesticide wastewater

Abstract

The utility model discloses a membrane separation device of pesticide wastewater treatment, it includes jar body, the jar body top is fixedly connected with the branch flow pipe and washing water pipe, the washing water pipe lower end is rotatably connected with the rotary shower head, the jar body left side is fixedly connected with motor, motor right side is rotatably connected with drive link, drive link right side end is fixedly connected with silica gel scraper, the jar body inside is fixedly connected with module skeleton, module skeleton right side is fixedly connected with filter membrane, filter membrane right side is fixedly connected with fixed ring. Through above -mentioned structure, reduced the frequency of dismantling and cleaning membrane, reduced the downtime maintenance time, delayed the aging speed of membrane, prolonged the service life of filter membrane significantly, on the other hand, the modularization fixed mode simplified the dismounting process of membrane component, compared with traditional device, the operation time of membrane dismantling is greatly shortened, and the replacement efficiency of filter membrane is improved, and great convenience is provided for the daily maintenance of equipment.

Description

Technical Field

[0001] This utility model relates to the technical field of membrane separation devices for pesticide wastewater treatment, and in particular to a membrane separation device for pesticide wastewater treatment. Background Technology

[0002] Pesticide wastewater is characterized by its complex composition, high pollutant concentration, strong toxicity, and reluctance to degrade. It contains large amounts of pesticide precursors, intermediates, adjuvants, and toxic organic matter, posing a serious threat to the ecological environment and human health if directly discharged. Membrane separation technology, as a highly efficient and green separation technology, has gained widespread attention in pesticide wastewater treatment due to its advantages such as no phase change required, low energy consumption, high separation efficiency, and simple operation. Membrane separation devices utilize the selective permeability of membranes to separate specific pollutants from water under the driving force of pressure and concentration differences. In recent years, the application of membrane separation technology in pesticide wastewater treatment has made some progress, and different membrane technologies are gradually being promoted in practical engineering.

[0003] However, membrane fouling is a major bottleneck restricting the efficient operation of membrane separation units. Pesticide wastewater contains a large amount of organic matter, colloids, microorganisms, etc., which easily deposit and adsorb on the membrane surface, causing membrane fouling. Membrane fouling leads to a decrease in membrane flux and an increase in operating pressure, which not only reduces treatment efficiency but also shortens the membrane's lifespan. On the other hand, traditional membrane replacement procedures are cumbersome, requiring the disassembly of a large number of parts, resulting in low efficiency, long downtime, and high requirements for operator skills, making installation problems prone to occur. Utility Model Content

[0004] The purpose of this invention is to solve at least one of the technical problems existing in the prior art, and to provide a membrane separation device for pesticide wastewater treatment. This device can perform real-time dynamic rinsing of the filter membrane during the filtration process, reduce the adhesion of impurities on the membrane surface, and solve the problems of easy pollution and clogging of the filter membrane during pesticide wastewater treatment.

[0005] This utility model also provides a membrane separation device for treating pesticide wastewater as described above, including a tank, a sealing ring fixedly connected in the middle of the tank, a motor fixedly connected to the left side of the tank, a water outlet fixedly connected to the right side of the tank, a branch pipe fixedly connected to the top of the tank, a main branch pipe fixedly connected to the side of the tank, a distributor fixedly connected to the top of the main branch pipe, an inlet pipe connected to the left side of the distributor, a washing water pipe fixedly connected to the top of the tank, a rotating nozzle rotatably connected to the lower end of the washing water pipe, a module frame fixedly connected inside the sealing ring, a positioning pin fixedly connected to the right side of the module frame, a filter membrane fixedly connected to the right side of the module frame, a fixing ring fixedly connected to the right side of the filter membrane, a drive rod rotatably connected to the right side of the motor, and a silicone scraper fixedly connected to the right end of the drive rod.

[0006] According to the membrane separation device for pesticide wastewater treatment described in this utility model, a second fixing buckle is fixedly connected to the outer side of the sealing ring, and a first fixing buckle is fixedly connected to the upper part of the sealing ring.

[0007] According to the membrane separation device for pesticide wastewater treatment described in this utility model, a sewage pipe is fixedly connected to the lower right part of the tank, and a sewage valve is fixedly connected to the upper part of the sewage pipe.

[0008] Beneficial effects: 1. This device utilizes an inlet diversion system to create a high-velocity water flow, enabling real-time dynamic rinsing of the filter membrane and effectively reducing impurity adhesion. A silicone scraper in front of the membrane operates precisely under motor drive, promptly removing accumulated debris from the membrane surface. Simultaneously, an external water inlet pipe and rotating nozzle above the membrane spray high-pressure water for deep rinsing. This triple cleaning mechanism addresses the industry pain point of frequent disassembly and cleaning required in traditional wastewater treatment devices. It significantly reduces the frequency of disassembly and cleaning, minimizing downtime for maintenance, and fundamentally slows down membrane aging, thus significantly extending the filter membrane's lifespan.

[0009] 2. The membrane module in the middle of the tank is stably fixed to the center of the tank using a snap-fit ​​structure, while the outer retaining rings further securely lock the filter membrane to the membrane module. This modular fixing method simplifies the disassembly and assembly process of the membrane module, significantly shortens the membrane removal operation time compared to traditional devices, significantly improves the filter membrane replacement efficiency, and provides great convenience for the daily maintenance of the equipment. Attached Figure Description

[0010] The present invention will be further described below with reference to the accompanying drawings and embodiments; Figure 1 This is a perspective view of a membrane separation device for treating pesticide wastewater according to this utility model; Figure 2 This is a structural diagram of the first fixing buckle of a membrane separation device for treating pesticide wastewater according to this utility model; Figure 3 This is a structural diagram of the silicone scraper of a membrane separation device for treating pesticide wastewater according to this utility model; Figure 4 This is a schematic diagram of the module skeleton structure of a membrane separation device for treating pesticide wastewater according to this utility model.

[0011] Legend: 1. Tank body; 2. Sealing ring; 3. Branch pipe; 4. Main branch pipe; 5. Diverter; 6. Inlet pipe; 7. Motor; 8. Outlet; 9. First fixing buckle; 10. Second fixing buckle; 11. Sewage valve; 12. Drain pipe; 13. Washing water pipe; 14. Rotary nozzle; 15. Filter membrane; 16. Silicone scraper; 17. Drive rod; 18. Module frame; 19. Positioning pin; 20. Fixing ring. Detailed Implementation

[0012] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0013] Reference Figure 1-4 This utility model provides a membrane separation device for treating pesticide wastewater, which includes a tank 1, a sealing ring 2 fixedly connected in the middle of the tank 1, a motor 7 fixedly connected to the left side of the tank 1, and a water outlet 8 fixedly connected to the right side of the tank 1.

[0014] Specifically, the sealing ring 2 prevents liquid leakage inside the tank 1, and the filtered liquid is discharged from the outlet 8 on the right side.

[0015] A branch pipe 3 is fixedly connected to the top of the tank body 1, a main branch pipe 4 is fixedly connected to the side of the tank body 1, a distributor 5 is fixedly connected above the main branch pipe 4, and an inlet pipe 6 is connected to the left side of the distributor 5.

[0016] Specifically, pesticide wastewater enters the diverter 5 through the inlet pipe for diversion. Most of the wastewater flows into the tank through the main diverter 4, while a small portion flows into the filter membrane through the branch diverter 3. The diameter of the end of the branch diverter 3 is reduced and the flow rate is increased, thus achieving the effect of rinsing the filter membrane 15.

[0017] A washing water pipe 13 is fixedly connected to the top of the tank body 1, and a rotating nozzle 14 is rotatably connected to the lower end of the washing water pipe 13.

[0018] Specifically, external clean water flows in through the washing water pipe 13 and washes the surface of the filter membrane 15 through the rotating nozzle 14.

[0019] The sealing ring 2 is internally fixedly connected to a module skeleton 18, and the right side of the module skeleton 18 is fixedly connected to a positioning pin 19.

[0020] Specifically, the positioning pins 19 on the module frame 18 can accurately position the filter membrane 15.

[0021] A second fixing buckle 10 is fixedly connected to the outer side of the sealing ring 2, and a first fixing buckle 9 is fixedly connected to the upper part of the sealing ring 2.

[0022] Specifically, the second fixing buckle 10 fixes the filter membrane 15 to the module frame 18, and the first fixing buckle 9 tightly connects the module frame 18 to the tank body 1.

[0023] A filter membrane 15 is fixedly connected to the right side of the module frame 18, and a fixing ring 20 is fixedly connected to the right side of the filter membrane 15.

[0024] Specifically, the fixing ring 20 can be engaged with the positioning pin 19 to connect the filter membrane 15 to the module frame 18.

[0025] A drive rod 17 is rotatably connected to the right side of the motor 7, and a silicone scraper 16 is fixedly connected to the right end of the drive rod 17.

[0026] Specifically, the silicone scraper 16 rotates under the drive of the motor 7 to scrape away the impurities on the surface of the filter membrane 15.

[0027] A sewage pipe 12 is fixedly connected to the lower right part of the tank body 1, and a sewage valve 11 is fixedly connected to the upper part of the sewage pipe 12.

[0028] Specifically, the filtered waste liquid is discharged through drain pipe 12.

[0029] Working principle: The pesticide wastewater to be treated enters the distributor 5 through the inlet pipe 6. Within the distributor 5, the wastewater is divided. Most of the wastewater enters the front of the tank 1 through the main distributor pipe 4, while a small portion enters the branch distributor pipe 3. The end of the branch distributor pipe 3 is close to the front end of the filter membrane 15. By narrowing the orifice at the end of the distributor pipe, the water flow velocity is increased, achieving the effect of rinsing the filter membrane 15. The motor 7 is started, driving the drive rod 17 to rotate. The drive rod 17 drives the silicone scraper 16 to rotate, keeping it 1-3 mm away from the front surface of the filter membrane 15 to clean the membrane. Above the filter membrane 15 is a washing water pipe 13, with a rotating nozzle 14 connected to the end of the pipe. External clean water is sprayed onto the surface of the filter membrane 15 through the rotating nozzle 14. Deep rinsing is performed. A membrane module is fixed in the middle of the tank body 1. The module includes a sealing ring 2, a second fixing buckle 10, a filter membrane 15, a module frame 18, a positioning pin 19, a fixing ring 20, and a first fixing buckle 9. The filter membrane 15 is placed on the module frame 18. The fixing ring 20 fixes the filter membrane 15 to the module frame 18 through the positioning pin 19. The second fixing buckle 10 is rotated to lock the module, and the module is inserted into the middle of the tank body 1. The first fixing buckle 9 is rotated in sequence to fix the module in the tank body 1. The outer side of the module is sealed with a sealing ring 2 to prevent liquid leakage. The filtered filtrate flows out through the outlet 8. There is a sewage pipe 12 on the side of the tank body 1. The sewage pipe 12 controls the discharge of waste liquid through the sewage valve 11 above. The embodiments of this utility model have been described in detail above with reference to the accompanying drawings. However, this utility model is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of this utility model.

Claims

1. A membrane separation device for treating pesticide wastewater, comprising a tank (1), characterized in that: A sealing ring (2) is fixedly connected in the middle of the tank (1). A motor (7) is fixedly connected to the left side of the tank (1). A water outlet (8) is fixedly connected to the right side of the tank (1). A branch pipe (3) is fixedly connected to the top of the tank (1). A main branch pipe (4) is fixedly connected to the left side of the tank (1). A distributor (5) is fixedly connected to the top of the main branch pipe (4). A water inlet pipe (6) is connected to the left side of the distributor (5). A washing water pipe (13) is fixedly connected to the top of the tank (1). A rotating nozzle (14) is rotatably connected to the lower end of the washing water pipe (13). A module frame (18) is fixedly connected inside the sealing ring (2). A positioning pin (19) is fixedly connected to the right side of the module frame (18). A filter membrane (15) is fixedly connected to the right side of the filter membrane (15). A fixing ring (20) is fixedly connected to the right side of the filter membrane (15). A drive rod (17) is rotatably connected to the right side of the motor (7). A silicone scraper (16) is fixedly connected to the right end of the drive rod (17).

2. The membrane separation device for pesticide wastewater treatment according to claim 1, characterized in that: The outer side of the sealing ring (2) is fixedly connected with a second fixing buckle (10), and the upper part of the sealing ring (2) is fixedly connected with a first fixing buckle (9).

3. The membrane separation device for pesticide wastewater treatment according to claim 1, characterized in that: A sewage pipe (12) is fixedly connected to the lower right part of the tank (1), and a sewage valve (11) is fixedly connected to the upper part of the sewage pipe (12).

Images