A device for treating dyeing and finishing wastewater of fabric by reverse osmosis

Abstract

This utility model belongs to the field of dyeing and finishing technology, and in particular to a reverse osmosis fabric dyeing and finishing wastewater treatment device. This utility model uses a sealing plate installed between the outer shell and the first cover plate to seal the device during operation. When cleaning or replacing the RO membrane, simply loosening the positioning bolts fixed on the first cover plate allows the position of the sealing plate to be adjusted without disassembly. Using the circular hole in the middle of the sealing plate that coincides with the first cover plate, a push plate fixed on one side of the ejection mechanism can pass through both the first cover plate and the sealing plate simultaneously, quickly ejecting the RO membrane inside the shell. Simply removing the second cover plate on the other side of the shell allows the RO membrane to be pushed out of the shell using the thrust of the threaded ejection mechanism. This effectively reduces the need for manual pushing, making replacement more efficient.

Description

Technical Field

[0001] This utility model relates to the field of dyeing and finishing technology, specifically to a reverse osmosis fabric dyeing and finishing wastewater treatment device. Background Technology

[0002] Dyeing and finishing wastewater is industrial wastewater generated during textile printing and dyeing processes. Its sources are complex and its pollutant concentrations are high. Reverse osmosis, typically occurring after physical or biological treatment, is used to remove dissolved salts, trace organic matter, and heavy metals, ensuring the water quality meets reuse or discharge standards. It is a membrane separation process that uses pressure difference as the driving force to separate the solvent from the solution. The principle is that pressure is applied to the feed solution on one side of the membrane. When the pressure exceeds its osmotic pressure, the solvent will permeate in the opposite direction of natural osmosis. Thus, the permeated solvent, i.e., permeate, is obtained on the low-pressure side of the membrane, while the concentrated solution, i.e., concentrate, is obtained on the high-pressure side.

[0003] When using reverse osmosis to treat wastewater, RO membranes are needed to filter the pretreated wastewater. After a certain period of operation, contaminants will appear on the surface of the RO membrane. If it is not cleaned regularly, it will become clogged, thus affecting efficiency. It is usually replaced manually. The size of the pipe is similar to that of the RO membrane, and because there are impurities inside the device, it is easy to get stuck when removing it. It is time-consuming, laborious and inconvenient.

[0004] Therefore, we propose a reverse osmosis fabric dyeing and finishing wastewater treatment device to solve the above problems. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides a reverse osmosis fabric dyeing and finishing wastewater treatment device, which solves the problems mentioned in the background section.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0009] A reverse osmosis fabric dyeing and finishing wastewater treatment device includes: an outer shell, a first cover plate and a second cover plate respectively installed on both sides of the outer shell, a sealing plate installed between the outer shell and the first cover plate, and an ejection mechanism installed on the first cover plate.

[0010] It also includes: a set of connecting plates fixed on one side of the outer shell, the connecting plates having slots, a first cover plate having slots at the same position as the connecting plates and being installed on the connecting plates, a set of flanges fixed on the other side of the outer shell, and a second cover plate being installed on the flanges;

[0011] A set of round holes is provided in the middle part of the first cover plate, and a set of support brackets is fixed on the round holes. The sealing plate has two sets of identical waist-shaped slots, the inner size of which is the same as the size of the slots opened on the support brackets of the first cover plate, allowing the sealing plate to be installed between the outer shell and the first cover plate. A set of round holes identical to those on the middle part of the first cover plate is also provided on one side of the sealing plate, allowing the ejection mechanism installed on the first cover plate to pass through the sealing plate.

[0012] Furthermore, a set of lead screws is fixed on one side of the ejection mechanism, and a set of handles is installed on the other side of the ejection mechanism. A set of push plates is fixed on the side of the lead screws away from the ejection mechanism, and the handles are installed on the other side of the ejection mechanism.

[0013] Furthermore, the support frame fixed on the first cover plate has a set of threaded holes that cooperate with the lead screw on the ejection mechanism. It is installed on the first cover plate by threaded connection, and the size of the push plate is the same as the size of the slot hole opened in the middle part of the first cover plate and the sealing plate.

[0014] Furthermore, a set of pure water outlet pipes is also installed on the second cover plate. An annular groove is provided on one side of the pure water outlet pipe. The bushing is installed in the annular groove on the pure water outlet pipe through an internally opened round hole, allowing the bushing to move inside the groove. A set of threads is provided on the pure water outlet pipe away from the bushing.

[0015] An RO membrane is installed inside the outer casing. A threaded hole is opened on one side of the RO membrane to match the pure water outlet pipe. The pure water outlet pipe is installed inside the RO membrane through the threaded connection.

[0016] Furthermore, a set of threaded protrusions is fixedly provided on the second cover plate, and the inside of the bushing is provided with threads that cooperate with the protrusions on the second cover plate for threaded connection.

[0017] Furthermore, water inlets and wastewater outlets are respectively provided on the upper sides of both sides of the outer casing.

[0018] Beneficial effects

[0019] Compared with the prior art, this utility model provides a reverse osmosis fabric dyeing and finishing wastewater treatment device, which has the following beneficial effects:

[0020] This invention features a sealing plate installed between the outer casing and the first cover plate. During operation, this plate provides a seal. When replacing the RO membrane, simply loosening the positioning bolts on the first cover plate allows adjustment of the sealing plate's position without disassembly. A circular hole in the middle of the sealing plate, coinciding with the first cover plate, allows a push plate fixed to one side of the ejection mechanism to pass through both the first cover plate and the sealing plate, quickly ejecting the RO membrane from inside the casing. Removing the second cover plate on the other side of the casing then uses the thrust of the ejection mechanism's threads to push the RO membrane out of the casing, effectively reducing the need for manual pushing and making replacement more efficient. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the first cover plate structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the second cover plate structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the RO membrane structure of this utility model.

[0025] In the diagram: 1. Outer shell; 2. First cover plate; 3. Second cover plate; 4. Sealing plate; 5. Ejection mechanism; 6. Push plate; 7. Handle; 8. Bushing; 9. RO membrane; 10. Positioning bolt; 11. Inlet; 12. Wastewater outlet; 13. Pure water outlet pipe. Detailed Implementation

[0026] 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.

[0027] Example

[0028] like Figure 1-4As shown in the figure, an embodiment of the present invention discloses a reverse osmosis fabric dyeing and finishing wastewater treatment device, comprising: a shell 1, a first cover plate 2 and a second cover plate 3 respectively installed on both sides of the shell 1, a sealing plate 4 installed between the shell 1 and the first cover plate 2, and an ejection mechanism 5 installed on the first cover plate 2; further comprising: a set of connecting plates fixed on one side of the shell 1, the connecting plates having four sets of slots, the first cover plate 2 having corresponding slots on the connecting plates, and being installed by four sets of positioning bolts 10; the sealing plate 4 being installed between the shell 1 and the first cover plate 2 by having waist-shaped slots on both sides allowing the positioning bolts 10 to pass through, and allowing the positioning bolts 10 to pass through. The device moves within the waist-shaped slot of the sealing plate 4; a set of flanges is fixed on the other side of the outer shell 1; the second cover plate 3 is installed by a set of positioning bolts 10 of another size through slots that match the flanges; a set of threaded protrusions is also fixed on the side of the second cover plate 3 away from the first cover plate 2; a set of pure water outlet pipes 13 is also installed on the second cover plate 3; an annular groove is opened on one side of the pure water outlet pipe 13; the bushing 8 is installed in the annular groove on the pure water outlet pipe 13 through an internal round hole, allowing the bushing 8 to move within the groove; the pure water outlet pipe 13 is connected to the threaded protrusions on the second cover plate 3 through the threads on the bushing 8. A set of circular holes is provided in the middle part of the first cover plate 2. A set of support frames is fixed on the circular holes. The ejection mechanism 5 is installed on the support frames, and a set of lead screws is fixed on one side of the ejection mechanism 5. The push plate 6 is connected to the ejection mechanism 5 through the lead screws. The handle 7 is installed on the other side of the ejection mechanism 5. A set of threaded holes that cooperate with the lead screws on the ejection mechanism 5 are provided on the support frame fixed on one side of the first cover plate 2. The support frame is installed on the first cover plate 2 through threaded connection. A circular hole of the same size as the one on the first cover plate 2 is provided on the sealing plate 4. The size of the push plate 6 is set to be able to pass through the circular holes on the first cover plate 2 and the sealing plate 4 at the same time. The RO membrane 9 is installed inside the housing 1. A limiting device is fixed on the side of the housing 1 near the first cover plate 2, which can leave space for the wastewater that is fed into the device from the inlet 11 and discharged from the wastewater outlet 12 on the other side. One side of the RO membrane 9 is closed, and the other side of the water guide pipe is provided with a threaded hole that matches the pure water outlet pipe 13. After installation, the filtered pure water can be discharged from the pure water outlet pipe 13.

[0029] During operation, an external high-pressure pump is used to transport pretreated wastewater from inlet 11 into the device. Because the device has a closed structure, the wastewater will be transported to the other end through RO membrane 9. During the transport process, reverse osmosis is used to filter the wastewater through the membrane on RO membrane 9 under external pressure. The filtered pure water flows out from the water guide pipe inside RO membrane 9 along the pure water outlet pipe 13. The wastewater after filtering out pure water is discharged from wastewater outlet 12. When it is necessary to clean or replace the internal RO membrane 9, first turn off the water supply to depressurize the inside of the device, and then remove the second cover plate 3. On the other side, the first cover plate 2 only needs to be loosened by loosening the four sets of positioning bolts 10 so that the sealing plate 4 can move inside. After aligning the round hole in the middle part of the sealing plate 4 with the ejector mechanism 5, simply rotate the handle 7 installed on one side of the ejector mechanism 5 to push the RO membrane 9 installed inside the device using the push plate 6 connected to the other side of the ejector mechanism 5. This can effectively reduce the need for manual pushing and make the replacement more efficient.

[0030] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A reverse osmosis fabric dyeing and finishing wastewater treatment device, comprising: The outer casing (1), the first cover plate (2) and the second cover plate (3) installed on the two sides of the outer casing (1) respectively, the sealing plate (4) installed between the outer casing (1) and the first cover plate (2), and the ejection mechanism (5) installed on the first cover plate (2); The features are as follows: a set of connecting plates are fixed on one side of the outer shell (1), and slots are opened on the connecting plates. The first cover plate (2) is opened with slots in the same position as the connecting plates and is installed on the connecting plates. A set of flanges is fixed on the other side of the outer shell (1), and the second cover plate (3) is installed on the flanges. A set of round holes are provided in the middle part of the first cover plate (2), and a set of support frames are fixed on the round holes. The sealing plate (4) has two sets of identical waist-shaped slots. The inner size of the waist-shaped slots is the same as the size of the slots opened on the support frames of the first cover plate (2), allowing the sealing plate (4) to be installed between the outer shell (1) and the first cover plate (2). A set of round holes with the same shape as the middle part of the first cover plate (2) are also provided on one side of the sealing plate (4), allowing the ejection mechanism (5) installed on the first cover plate (2) to pass through the sealing plate (4).

2. The reverse osmosis fabric dyeing and finishing wastewater treatment device according to claim 1, characterized in that: A set of lead screws is fixed on one side of the ejection mechanism (5), and a set of handles (7) is installed on the other side of the ejection mechanism (5). A set of push plates (6) is fixed on the side of the lead screw away from the ejection mechanism (5), and the handles (7) are installed on the other side of the ejection mechanism (5).

3. The reverse osmosis fabric dyeing and finishing wastewater treatment device according to claim 2, characterized in that: The support frame fixed on the first cover plate (2) has a set of threaded holes that cooperate with the lead screw on the ejector mechanism (5). It is installed on the first cover plate (2) by threaded connection, and the size of the push plate (6) is the same as the size of the slot hole opened in the middle part of the first cover plate (2) and the sealing plate (4).

4. The reverse osmosis fabric dyeing and finishing wastewater treatment device according to claim 1, characterized in that: A set of pure water outlet pipes (13) is also installed on the second cover plate (3). An annular groove is provided on one side of the pure water outlet pipe (13). The bushing (8) is installed in the annular groove on the pure water outlet pipe (13) through an internal round hole, allowing the bushing (8) to move inside the groove. A set of threads is provided on the end of the pure water outlet pipe (13) away from the bushing (8). An RO membrane (9) is installed inside the outer shell (1). A threaded hole is provided on one side of the RO membrane (9) to match the pure water outlet pipe (13). The pure water outlet pipe (13) is installed inside the RO membrane (9) through threaded connection.

5. The reverse osmosis fabric dyeing and finishing wastewater treatment device according to claim 1, characterized in that: The second cover plate (3) is also fixed with a set of threaded protrusions, and the bushing (8) has threads inside that cooperate with the protrusions on the second cover plate (3) for threaded connection.

6. The reverse osmosis fabric dyeing and finishing wastewater treatment device according to claim 1, characterized in that: The upper sides of the outer shell (1) are respectively provided with a water inlet (11) and a wastewater outlet (12).

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