Membrane bioreactor filtration membrane structure

Abstract

The utility model discloses a membrane bioreactor filter membrane structure, it includes: mounting bracket, both ends of mounting bracket are all provided with single -way pipe, curtain type filter membrane, curtain type filter membrane is fixed in mounting bracket through single -way pipe, square frame, square frame surrounds mounting bracket, scraper ring, scraper ring is fixed in the inside of square frame, and curtain type filter membrane's lower extreme passes through square frame, load rope, both ends of load rope are all provided with the ring, limiting rod, bolt, limiting rod sets up in the upper end of mounting bracket, and bolt penetrates limiting rod. Through the light quality square frame and scraper ring in the state of suspension, make multiple curtain type filter membranes synchronous swing, reduce the influence of impurity to curtain type filter membrane, utilize the limited length of suspension square frame load rope to limit the maximum activity range of curtain type filter membrane simultaneously, reduce the hidden danger of curtain type filter membrane damage.

Description

Technical Field

[0001] This utility model relates to the field of biofilm reactor technology, and in particular to a membrane bioreactor filtration membrane structure. Background Technology

[0002] Membrane bioreactors (MBRs) are a highly efficient wastewater treatment technology. In traditional MBRs, curtain-type filter membranes are usually fixed by suspension. However, during reactor operation, the filter membranes need to sway with the help of water flow to reduce the impact of dirt adhering to the filter membrane surface on the filtration effect. Due to the relative arrangement of multiple filter membranes, the movement effect of the filter membrane in the middle part is poor, and pollutants are easily deposited on the membrane surface, which leads to increased concentration polarization, decreased membrane flux, and the need for frequent cleaning and maintenance, which increases operating energy consumption and cost, and affects the practicality of the membrane bioreactor filtration structure. Utility Model Content

[0003] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide a membrane bioreactor filtration membrane structure that increases the influence of water flow on each filtration membrane, improves the swaying effect of the filtration membrane, and at the same time limits the maximum range of motion of the filtration membrane, thereby reducing the risk of damage to the filtration membrane due to excessive movement.

[0004] This utility model also provides a membrane bioreactor filtration membrane structure as described above, comprising: a mounting frame, with single-pass pipes at both the upper and lower ends of the mounting frame; a curtain-type filtration membrane, which is fixed to the mounting frame via the single-pass pipes; a square frame surrounding the mounting frame; a scraper ring, which is fixed inside the square frame, and the lower end of the curtain-type filtration membrane passes through the square frame; a load-bearing rope, with hanging rings at both the upper and lower ends of the load-bearing rope; a limiting rod and a pin, with the limiting rod located at the upper end of the mounting frame and the pin passing through the limiting rod.

[0005] According to the membrane bioreactor filtration membrane structure of the present invention, the mounting frame consists of a main tube and a connecting rod, and the single-pass tube is disposed on the surface of the main tube.

[0006] According to the membrane bioreactor filtration membrane structure of this utility model, both the square frame and the hanging ring are made of polypropylene, and the square frame is a hollow structure.

[0007] According to the membrane bioreactor filtration membrane structure of this utility model, the length of the square frame is greater than the length of the mounting frame, and the inner wall of the square frame is in contact with the surface of the connecting rod in the vertical position in the mounting frame.

[0008] According to the present invention, a membrane bioreactor filtration membrane structure is provided, wherein the curtain-type filtration membrane is composed of fiber filaments and two long tubes, and one end of the single-pass tube is located inside the long tube.

[0009] According to the membrane bioreactor filtration membrane structure of this utility model, the length of the curtain-type filtration membrane is greater than the height of the mounting frame, and the curtain-type filtration membrane is in a curved state.

[0010] According to the membrane bioreactor filtration membrane structure of this utility model, the hanging ring at the lower end of the load-bearing rope is fixedly connected to the square frame, and the limiting rod is in contact with the inner wall of the hanging ring at the upper end of the load-bearing rope.

[0011] According to the membrane bioreactor filtration membrane structure of this utility model, the pin is a square structure, and the surface of the pin is in contact with the surface of the vertical connecting rod in the mounting frame.

[0012] Beneficial effects:

[0013] The membrane bioreactor filtration membrane structure of this technical solution uses hooks, limiting rods, and load-bearing ropes to suspend a square frame. The lightweight nature of the square frame and its internal scraper rings increases the impact of water flow on the curtain membrane, improving the swaying effect of the curtain filter membrane. The scraper rings corresponding to each curtain filter membrane ensure that the curtain filter membranes sway synchronously. The limited length of the load-bearing rope restricts the movement range of the square frame along the water flow direction, preventing the curtain filter membrane from being damaged due to excessive stretching. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0015] Figure 1 This is a left view of the filtration membrane structure of a membrane bioreactor according to the present invention;

[0016] Figure 2 This is a right-side structural view of the membrane structure of a membrane bioreactor according to the present invention;

[0017] Figure 3 This is a bottom view of the membrane structure of a membrane bioreactor according to the present invention;

[0018] Figure 4 This utility model relates to a membrane bioreactor filtration membrane structure. Figure 2 Enlarged structural diagram at point A in the middle.

[0019] Legend:

[0020] 1. Mounting bracket; 2. Curtain filter membrane; 3. Single-channel pipe; 4. Square frame; 5. Scraper ring; 6. Hanging ring; 7. Load-bearing rope; 8. Limiting rod; 9. Pin; 10. Main channel pipe; 11. Connecting rod. Detailed Implementation

[0021] 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.

[0022] Reference Figure 1-4 This utility model discloses a membrane bioreactor filtration membrane structure, comprising: a mounting frame 1, with single-pass pipes 3 at both the upper and lower ends of the mounting frame 1; a curtain-type filter membrane 2, which is fixed to the mounting frame 1 via the single-pass pipes 3; a square frame 4, which surrounds the mounting frame 1; a scraper ring 5, which is fixed inside the square frame 4, and the lower end of the curtain-type filter membrane 2 passes through the square frame 4; a load-bearing rope 7, with hanging rings 6 at both the upper and lower ends of the load-bearing rope 7; a limiting rod 8 and a pin 9, with the limiting rod 8 located at the upper end of the mounting frame 1 and the pin 9 passing through the limiting rod 8.

[0023] The mounting bracket 1 consists of a main pipe 10 and a connecting rod 11. A single pipe 3 is installed on the surface of the main pipe 10. The main pipe 10 is used to guide the discharge of filtered water.

[0024] Both the square frame 4 and the hanging ring 6 are made of polypropylene. The hollow structure of the square frame 4 and the materials and structure of the square frame 4 and the hanging ring 6 ensure that the water flow can stably drive the square frame 4 to move.

[0025] The length of the square frame 4 is greater than the length of the mounting frame 1. The inner wall of the square frame 4 is in contact with the surface of the vertical connecting rod 11 in the mounting frame 1. The structure between the square frame 4 and the mounting frame 1 ensures that the square frame 4 moves stably along the water flow direction.

[0026] The curtain filter membrane 2 is composed of fiber filaments and two long tubes. One end of the single tube 3 is located inside the long tube. The length of the curtain filter membrane 2 is greater than the height of the mounting frame 1. The curtain filter membrane 2 is in a curved state. The curtain filter membrane 2 uses the characteristics of fiber filaments to filter impurities in sewage.

[0027] The hanging ring 6 at the lower end of the load-bearing rope 7 is fixedly connected to the square frame 4. The limiting rod 8 contacts the inner wall of the hanging ring 6 at the upper end of the load-bearing rope 7. The pin 9 has a square structure, and the surface of the pin 9 contacts the surface of the vertical connecting rod 11 in the mounting bracket 1. The hanging ring 6 cooperates with the limiting rod 8 and the pin 9 to increase the convenience of assembling and disassembling the square frame 4.

[0028] The installation method and physical reference for the curtain filter membrane 2 and mounting bracket 1 are shown at the following link: "https: / / www.douyin.com / video / 7290814452239224105"

[0029] Working principle: First, the square frame 4 is suspended and fixed by using the hanging ring 6 and the limiting rod 8 and the pin 9. Then, the upper end of the curtain filter membrane 2 is fixed by the method of installing the curtain filter membrane 2 as shown in the above video. Then, the lower end of the curtain filter membrane 2 is pulled downward through the scraper ring 5.

[0030] When the reactor is in use, the square frame 4 faces the direction of water flow to ensure that the square frame 4 can be pushed by the water flow. The maximum movement distance of the square frame 4 is the length of the load-bearing rope 7 in the tilting state. The length of the load-bearing rope 7 is referenced to the maximum stretching range of the curtain filter membrane 2, and the length of the load-bearing rope 7 is less than the length of the maximum stretching range of the curtain filter membrane 2.

[0031] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A membrane bioreactor filtration membrane structure, characterized in that, include: Mounting bracket (1), with single-through pipes (3) provided at both the upper and lower ends of the mounting bracket (1). A curtain filter membrane (2) is fixed to the mounting frame (1) by a single-pass pipe (3); A square frame (4) surrounds the mounting bracket (1); Scraping ring (5), the scraping ring (5) is fixed inside the square frame (4), and the lower end of the curtain filter membrane (2) passes through the square frame (4). The load-bearing rope (7) has hanging rings (6) at both its upper and lower ends. Limiting rod (8) and pin (9), the limiting rod (8) is set at the upper end of the mounting frame (1), and the pin (9) passes through the limiting rod (8).

2. The membrane bioreactor filtration membrane structure according to claim 1, characterized in that, The mounting bracket (1) consists of a main pipe (10) and a connecting rod (11), and the single-pass pipe (3) is disposed on the surface of the main pipe (10).

3. The membrane structure for a membrane bioreactor according to claim 1, characterized in that, Both the square frame (4) and the hanging ring (6) are made of polypropylene, and the square frame (4) is a hollow structure.

4. The membrane bioreactor filtration membrane structure according to claim 3, characterized in that, The length of the square frame (4) is greater than the length of the mounting bracket (1), and the inner wall of the square frame (4) is in contact with the surface of the connecting rod (11) in the vertical position in the mounting bracket (1).

5. The membrane bioreactor filtration membrane structure according to claim 1, characterized in that, The curtain filter membrane (2) is composed of fiber filaments and two long tubes, with one end of the single tube (3) located inside the long tube.

6. The membrane structure for a membrane bioreactor according to claim 1, characterized in that, The length of the curtain filter membrane (2) is greater than the height of the mounting frame (1), and the curtain filter membrane (2) is in a bent state.

7. The membrane bioreactor filtration membrane structure according to claim 1, characterized in that, The hanging ring (6) at the lower end of the load-bearing rope (7) is fixedly connected to the square frame (4), and the limiting rod (8) is in contact with the inner wall of the hanging ring (6) at the upper end of the load-bearing rope (7).

8. The membrane structure for a membrane bioreactor according to claim 1, characterized in that, The pin (9) has a square structure, and the surface of the pin (9) is in contact with the surface of the vertical connecting rod (11) in the mounting bracket (1).

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