High-salinity wastewater treatment device

Abstract

The utility model discloses a high-salinity wastewater treatment device, which relates to the field of RO (reverse osmosis) membrane filtration for high-salinity wastewater and comprises a shell, a sewage inlet pipe is mounted at one end of the periphery of the shell, a high-concentration wastewater outlet pipe is mounted at the other end of the periphery of the shell, and an RO membrane is mounted on the inner wall of the shell and positioned between the sewage inlet pipe and the high-concentration wastewater outlet pipe. A central pipe penetrating to one end of the exterior of the shell is mounted in the center of the RO membrane, a plurality of water holes are formed in the central pipe at equal intervals, a rotating mechanism penetrating to the interior of the central pipe is mounted at one end, close to the high-concentration wastewater outlet pipe, of the shell, and a water passing mechanism connected with the rotating mechanism is mounted on the inner wall of the central pipe. According to the utility model, the rotating mechanism and the water passing mechanism are arranged, and after the water passing mechanism is closed by the rotating mechanism, the closing of the central pipe can be realized, so that backwashing can be realized, and the RO membrane which is used for a long time can be cleaned more conveniently.

Description

Technical Field

[0001] This utility model relates to the field of RO membrane filtration for high-salinity wastewater, specifically a high-salinity wastewater treatment device. Background Technology

[0002] There are various ways to treat high-salinity wastewater, such as high-temperature distillation and membrane filtration. When using membrane filtration to filter high-salinity wastewater, RO membranes are generally used.

[0003] The existing RO membrane is not convenient for backwashing because the design of the central tube and water holes is insufficient to maintain enough water pressure on the water path during backwashing. It can only be disassembled and cleaned, which is inconvenient. Utility Model Content

[0004] The purpose of this utility model is to provide a high-salinity wastewater treatment device in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-salinity wastewater treatment device, comprising a shell, a wastewater inlet pipe installed at one end of the outer periphery of the shell, and a high-concentration wastewater outlet pipe installed at the other end of the outer periphery of the shell. An RO membrane is installed on the inner wall of the shell between the wastewater inlet pipe and the high-concentration wastewater outlet pipe. A central tube is installed at the center of the RO membrane, extending to one end of the outer periphery of the shell. Multiple water holes are equidistantly arranged inside the central tube. A rotating mechanism is installed at one end of the shell near the high-concentration wastewater outlet pipe, extending into the interior of the central tube. A water-passing mechanism connected to the rotating mechanism is installed on the inner wall of the central tube.

[0006] As a further embodiment of this utility model: the rotating mechanism includes a rotating motor installed on the outer shell near the end of the high-concentration wastewater outlet pipe, the output shaft of the rotating motor passes through the inner cavity of the outer shell, and a sealing ring is provided at the rotatable connection position between the output shaft of the rotating motor and the outer shell, the RO membrane is connected to a rotating shaft passing through the inner cavity of the central tube through a connecting assembly, and a sealing ring is installed at the rotatable connection position between the rotating shaft and the central tube.

[0007] As a further embodiment of this utility model: the water-passing mechanism includes a connecting plate fixedly installed on the inner wall of the central pipe and another connecting plate rotatably installed on the inner wall of the central pipe. The outer circumference of the other connecting plate is integrally formed with a rotating ring. The inner wall of the central pipe is provided with a groove for the rotating ring to rotate. The two connecting plates are in contact with each other, and a sealing ring is provided at the contact position of the two connecting plates. A through hole is provided at the lower part of the interior of the two connecting plates.

[0008] As a further embodiment of this utility model: the connecting assembly includes a first connector installed at the output end of the rotary motor, the end of the first connector away from the rotary motor having an integrally formed hexagonal head, and the connecting assembly also includes a second connector installed at the end of the rotating shaft located outside the central tube, the end of the second connector away from the hexagonal head having a hexagonal groove for the hexagonal head to be inserted.

[0009] As a further embodiment of this utility model: a bracket is fixedly installed on the inner wall of the central tube at the position adjacent to the two water holes, the central hole of the bracket is rotatably connected to the rotating shaft, and a trough for water flow is provided on the bracket.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. By setting up a rotating mechanism and a water supply mechanism, the central pipe can be shut off after the water supply mechanism is closed by rotating the mechanism, which can realize backwashing and make it easier to clean the RO membrane that has been used for a long time. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0014] Figure 3 For the present utility model Figure 2 Enlarged view of a portion of point A in the middle;

[0015] Figure 4 For the present utility model Figure 2 Enlarged view of section B in the middle.

[0016] In the diagram: 1. Outer shell; 2. Sewage inlet pipe; 3. High-concentration wastewater outlet pipe; 4. Central pipe; 5. Rotary motor; 6. RO membrane; 7. Water hole; 8. Connecting plate; 9. Through hole; 10. Rotating ring; 11. Rotating shaft; 12. Support; 13. No. 1 connector; 14. Hexagonal head; 15. No. 2 connector. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figures 1-4In this embodiment of the present invention, the high-salt wastewater treatment device includes a shell 1. A sewage inlet pipe 2 is installed at one end of the outer periphery of the shell 1, and a high-concentration wastewater outlet pipe 3 is installed at the other end of the outer periphery of the shell 1. An RO membrane 6 is installed on the inner wall of the shell 1 between the sewage inlet pipe 2 and the high-concentration wastewater outlet pipe 3. A central tube 4 is installed in the center of the RO membrane 6, penetrating to one end of the outer periphery of the shell 1. Multiple water holes 7 are equidistantly opened inside the central tube 4. A rotating mechanism is installed at one end of the shell 1 near the high-concentration wastewater outlet pipe 3, penetrating to the interior of the central tube 4. A water-passing mechanism connected to the rotating mechanism is installed on the inner wall of the central tube 4.

[0019] In this embodiment: First, when treating high-salinity wastewater, the wastewater is pumped into the interior of the outer casing 1 through the wastewater inlet pipe 2. As the wastewater continuously enters, the water pressure increases. Under this pressure, the wastewater enters the RO membrane 6 and is filtered layer by layer. The salt in the wastewater is intercepted, while the water passes through the filter holes and water holes 7 of the RO membrane 6 into the central pipe 4. The filtered high-salinity substances are discharged from the other end of the RO membrane 6 and discharged outward through the high-concentration wastewater outlet pipe 3, thus completing the treatment of high-salinity wastewater. When the water filtration system becomes clogged or the water flow is blocked after prolonged use, first close the valve connected to the high-concentration wastewater outlet pipe 3 and disconnect the pipe connected to the sewage inlet pipe 2. Start the rotating mechanism, which will drive the water flow mechanism to close, thus closing the central pipe 4. Then, pump backwash water. Since the central pipe 4 is closed, the water will not pass through it. Under water pressure, the impurities clogging the RO membrane 6 are backwashed out and discharged from the sewage inlet pipe 2, achieving the backwashing effect.

[0020] Please refer to this carefully. Figure 1 , Figure 2 and Figure 4 The rotating mechanism includes a rotating motor 5 installed at one end of the outer casing 1 near the high-concentration wastewater outlet pipe 3. The output shaft of the rotating motor 5 extends through the inner cavity of the outer casing 1, and a sealing ring is provided at the rotatable connection position between the output shaft of the rotating motor 5 and the outer casing 1. The RO membrane 6 is connected to a rotating shaft 11 that extends through the inner cavity of the central tube 4 via a connecting assembly. A sealing ring is installed at the rotatable connection position between the rotating shaft 11 and the central tube 4. The connecting assembly includes a first connector 13 installed at the output end of the rotating motor 5. The end of the first connector 13 away from the rotating motor 5 has an integrally formed hexagonal head 14. The connecting assembly also includes a second connector 15 installed at the outer end of the rotating shaft 11 located outside the central tube 4. The end of the second connector 15 away from the hexagonal head 14 has a hexagonal groove for the hexagonal head 14 to be inserted.

[0021] In this embodiment: when installing the rotary motor 5, the rotary motor 5 drives the hexagonal head 14 to connect with the hexagonal slot, so that the first connector 13 and the second connector 15 can be connected. When closing the water supply mechanism, the rotary motor 5 is started, and the rotary motor 5 drives the rotary shaft 11 to rotate. The rotary shaft 11 drives the water supply mechanism component connected to it to rotate, so as to realize the closing and starting of the water supply mechanism.

[0022] Please refer to this carefully. Figure 2 , Figure 3 The water-passing mechanism includes a connecting plate 8 fixedly installed on the inner wall of the central pipe 4 and another connecting plate 8 rotatably installed on the inner wall of the central pipe 4. The outer circumference of the other connecting plate 8 is integrally formed with a rotating ring 10. The inner wall of the central pipe 4 is provided with a groove for the rotating ring 10 to rotate. The two connecting plates 8 are in contact with each other, and a sealing ring is provided at the contact position of the two connecting plates 8. A through hole 9 is provided at the lower part of the interior of the two connecting plates 8.

[0023] In this embodiment: the rotating shaft 11 drives the connecting plate 8 connected to it to rotate, and the connecting plate 8 drives the rotating ring 10 on its outer periphery to rotate. At this time, the connecting plate 8 rotates relative to the connecting plate 8 fixedly connected to the inner wall of the central tube 4, and the two through holes 9 are misaligned, so the water passage mechanism can be closed. Similarly, when the two through holes 9 are aligned, the water passage mechanism can be opened.

[0024] Please refer to this carefully. Figure 3 A bracket 12 is fixedly installed on the inner wall of the central tube 4 at the position of two adjacent water holes 7. The central hole of the bracket 12 is rotatably connected to the rotating shaft 11, and a trough for water flow is opened on the bracket 12.

[0025] In this embodiment, the bracket 12 is designed to provide rotational support for the rotating shaft 11, thereby achieving a better torque transmission effect.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high-salinity wastewater treatment device, comprising a casing (1), characterized in that, A sewage inlet pipe (2) is installed at one end of the outer periphery of the outer shell (1), and a high-concentration wastewater outlet pipe (3) is installed at the other end of the outer periphery of the outer shell (1). An RO membrane (6) is installed on the inner wall of the outer shell (1) between the sewage inlet pipe (2) and the high-concentration wastewater outlet pipe (3). A central tube (4) is installed in the center of the RO membrane (6) and extends to one end of the outer shell (1). Multiple water holes (7) are equidistantly opened inside the central tube (4). A rotating mechanism that extends into the central tube (4) is installed at one end of the outer shell (1) near the high-concentration wastewater outlet pipe (3). A water-passing mechanism connected to the rotating mechanism is installed on the inner wall of the central tube (4).

2. The high-salinity wastewater treatment device according to claim 1, characterized in that, The rotating mechanism includes a rotating motor (5) installed on the outer shell (1) near the high-concentration wastewater outlet pipe (3). The output shaft of the rotating motor (5) extends through the inner cavity of the outer shell (1), and a sealing ring is provided at the rotatable connection position between the output shaft of the rotating motor (5) and the outer shell (1). The RO membrane (6) is connected to a rotating shaft (11) extending through the inner cavity of the central tube (4) via a connecting assembly. A sealing ring is installed at the rotatable connection position between the rotating shaft (11) and the central tube (4).

3. The high-salinity wastewater treatment device according to claim 2, characterized in that, The water-passing mechanism includes a connecting plate (8) fixedly installed on the inner wall of the central pipe (4) and another connecting plate (8) rotatably installed on the inner wall of the central pipe (4). The outer circumference of the other connecting plate (8) is integrally formed with a rotating ring (10). The inner wall of the central pipe (4) is provided with a groove for the rotating ring (10) to rotate. The two connecting plates (8) are in contact with each other, and a sealing ring is provided at the contact position of the two connecting plates (8). A through hole (9) is provided at the lower part of the interior of the two connecting plates (8).

4. The high-salinity wastewater treatment device according to claim 3, characterized in that, The connecting assembly includes a first connector (13) installed at the output end of the rotary motor (5), the first connector (13) having a hexagonal head (14) integrally formed at the end away from the rotary motor (5), and the connecting assembly also includes a second connector (15) installed at the end of the rotating shaft (11) located outside the central tube (4), the second connector (15) having a hexagonal groove for the hexagonal head (14) to be inserted at the end away from the hexagonal head (14).

5. The high-salinity wastewater treatment device according to claim 4, characterized in that, The inner wall of the central tube (4) is fixedly installed with a bracket (12) at the adjacent position of the two water holes (7). The central hole of the bracket (12) is rotatably connected to the rotating shaft (11), and a trough for water flow is opened on the bracket (12).

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