A kind of purification equipment for wastewater treatment reverse osmosis membrane

Abstract

This invention discloses a purification device for reverse osmosis membranes in wastewater treatment, relating to the field of reverse osmosis membrane purification technology. It includes a frame, a purification inner cylinder, a covering outer cylinder, and a rotating and tilting mechanism. The invention utilizes a covering outer cylinder, a purification inner cylinder, and a rotating and tilting mechanism mounted on the frame. A notched gear is driven by the output of a drive motor. When the teeth of the notched gear mesh with the rack, the entire reverse osmosis membrane is thoroughly purified, avoiding excessive force on the membrane ends caused by unidirectional water flow purification and ensuring the quality of the purified product. When the teeth of the notched gear disengage from the rack, the purification inner cylinder rotates synchronously in the opposite direction with varying acceleration, while the covering outer cylinder tilts synchronously around the hinge point with the fixed frame and tilts towards the outlet. This allows the ejected viscous deposits to slide towards the outlet with the low-pressure water flow and be discharged together, ensuring purification effectiveness without affecting the purification of the next reverse osmosis membrane.

Description

Technical Field

[0001] This invention relates to the field of reverse osmosis membrane purification technology, and more specifically to a purification device for wastewater treatment using a reverse osmosis membrane. Background Technology

[0002] The creation of a civilized city is a systematic project involving various aspects such as urban environment, infrastructure, public order, and environmental sanitation. Particular emphasis is placed on preventing and controlling urban waste to achieve a virtuous cycle of the ecological environment. The dyeing and printing industry is a major contributor to industrial wastewater discharge. Its wastewater is generated from multiple processes such as washing, dyeing, printing, and sizing, containing large amounts of organic matter such as dyes, starch, and detergents, as well as inorganic matter such as alkalis, sulfides, and various salts. Untreated dyeing and printing wastewater discharge causes serious environmental pollution. Current water purification equipment uses liquid-phase membranes driven by pressure difference. Under pressure, water molecules in the solution permeate through the membrane, while other organic matter, inorganic matter, bacteria, and viruses are retained, thus achieving purification. For the purification process after using reverse osmosis membranes, current methods often employ a combination of water flow and airflow to continuously clean and purify the reverse osmosis membrane inside the cylinder.

[0003] However, existing technologies have certain drawbacks after long-term use, such as: First, in order to completely purify the entire reverse osmosis membrane, a purification method using continuous pressurized circulating water flow combined with strong airflow is adopted. This results in excessive force on the end inlet of the reverse osmosis membrane inside the cylinder, causing the pore size of the reverse osmosis membrane element at that location to increase or even be damaged, leading to a decrease in the quality of the purified product. Second, although the cleaning agent can effectively remove the deposits on the reverse osmosis membrane, the groove of its end sealing gasket often retains viscous deposits that are difficult to remove. As purification continues, these viscous deposits will detach from the reverse osmosis membrane and adhere to the inner cylinder wall, affecting the subsequent purification effect of the reverse osmosis membrane. Summary of the Invention

[0004] The purpose of this invention is to provide a purification device for reverse osmosis membranes in wastewater treatment, so as to solve the above-mentioned defects caused by the prior art.

[0005] A wastewater treatment reverse osmosis membrane purification device includes a frame, a purification inner cylinder, a covering outer cylinder, and a rotating and tilting mechanism. One side of the covering outer cylinder is fixedly mounted on the frame, and the other side of the covering outer cylinder is detachably mounted on the other side of the frame. An clearance opening is provided at the lower end of the covering outer cylinder. The purification inner cylinder is coaxially and rotatably mounted inside the covering outer cylinder. The outer surface of the purification inner cylinder is threaded. A reverse osmosis membrane is placed inside the purification inner cylinder. The rotating and tilting mechanism is mounted on the frame and is used to purify the reverse osmosis membrane and remove viscous deposits in the purification inner cylinder under low pressure.

[0006] Preferably, the rotating and tilting mechanism includes a drive motor, a sliding frame, and a lifting frame. The drive motor is mounted on the frame, and a notched gear is installed at the output end of the drive motor. A fixed frame is provided on the frame. There are two sliding frames that are symmetrically slidably arranged at both ends of the fixed frame. A rack that meshes with the notched gear is installed at the upper end of the sliding frame. Two symmetrically arranged tension springs are fixedly installed at the lower end of the sliding frame. The other ends of the two tension springs are fixedly connected to the fixed frame. A connecting rod is hinged to one side of the sliding frame. The other end of the connecting rod is connected to the lifting frame. The lifting frame is slidably arranged on the frame through a guide rod. An arc-shaped top plate is installed at the upper end of the lifting frame. A push rod is fixedly installed at the other side of the sliding frame.

[0007] Preferably, the middle section of the outer cylinder is hinged to the fixed frame, a sliding rod is fixedly installed in the clearance opening, a slider is slidably installed on the sliding rod, a spring is sleeved on the sliding rod between the slider and the end of the clearance opening, a guide groove is fixedly installed at the lower end of the slider, a push rod is placed in the guide groove, and the upper end of the slider passes through the clearance opening and abuts against the threaded outer surface of the purification inner cylinder.

[0008] Preferably, the clearance opening cooperates with the slider.

[0009] Preferably, the arc-shaped top plate is positioned vertically between the fixing frame and the push rod.

[0010] Preferably, the teeth on the notched gear are symmetrical.

[0011] Preferably, the arc-shaped top plate is detachable and fits into the outer wall of the outer cylinder.

[0012] Preferably, the guide slot is in the shape of an inverted "Y".

[0013] The advantages of this invention are:

[0014] By setting an outer covering cylinder, a purification inner cylinder, and a rotating and tilting mechanism on the frame, the output end of the drive motor drives the notched gear to rotate. When the teeth on the notched gear mesh with the rack, the purification inner cylinder rotates inside the outer covering cylinder, and the purified water flows around the purification inner cylinder, which can comprehensively purify the entire reverse osmosis membrane and avoid excessive force on the end of the reverse osmosis membrane caused by unidirectional water flow purification, thus ensuring the quality of the purified product.

[0015] When the teeth on the notched gear disengage from the rack, the fixed frame and slider quickly return to their original position under the elastic force of the tension spring. This causes the inner purification cylinder to rotate synchronously in the opposite direction with varying acceleration. This swings the viscous deposits attached to the groove of the end sealing gasket. At the same time, the end of the arc-shaped top plate abuts against the outer wall of the outer casing, causing the outer casing to sway synchronously around the hinge point with the fixed frame and tilt towards the outlet. This allows the viscous deposits to slide towards the outlet with the low-pressure water flow and be discharged together, ensuring the purification effect without affecting the purification of the next reverse osmosis membrane. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention.

[0017] Figure 2 This is a schematic diagram of the assembly of the purification inner cylinder and the rotating and tumbling mechanism in this invention.

[0018] Figure 3 This is a schematic diagram of the assembly of the outer cylinder and the partial rotating and tumbling mechanism in this invention.

[0019] Among them, 1-frame, 2-purification inner cylinder, 3-covering outer cylinder, 4-rotation and tilting mechanism, 5-avoidance opening, 31-slide bar, 32-slider, 33-spring, 34-guide slot, 401-drive motor, 402-sliding frame, 403-lifting frame, 404-notched gear, 405-fixed frame, 406-rack, 407-tension spring, 408-connecting rod, 409-guide rod, 410-arc head top plate, 411-push rod. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0021] like Figures 1 to 3 As shown, a wastewater treatment reverse osmosis membrane purification device includes a frame 1, a purification inner cylinder 2, a covering outer cylinder 3, and a rotating and tilting mechanism 4. One side of the covering outer cylinder 3 is fixedly mounted on the frame 1, and the other side of the covering outer cylinder 3 is detachably mounted on the other side of the frame 1. An avoidance opening 5 is provided at the lower end of the covering outer cylinder 3. The purification inner cylinder 2 is coaxially rotatably mounted inside the covering outer cylinder 3. The outer surface of the purification inner cylinder is threaded. A reverse osmosis membrane is placed inside the purification inner cylinder 2. The rotating and tilting mechanism 4 is mounted on the frame 1 and is used to purify the reverse osmosis membrane and remove viscous deposits in the purification inner cylinder under low pressure.

[0022] In this embodiment, the rotating and tilting mechanism 4 includes a drive motor 401, a sliding frame 402, and a lifting frame 403. The drive motor 401 is mounted on the frame 1, and a notched gear 404 is mounted on the output end of the drive motor 401. A fixed frame 405 is provided on the frame 1. There are two sliding frames 402 that are symmetrically slidably disposed at both ends of the fixed frame 405. A rack 406 that meshes with the notched gear 404 is mounted on the upper end of the sliding frame 402. Two symmetrically arranged tension springs 407 are fixedly installed at the lower end of 02. The other ends of the two tension springs 407 are fixedly connected to the fixed frame 405. A connecting rod 408 is hinged to one side of the sliding frame 402. The other end of the connecting rod 408 is connected to the lifting frame 403. The lifting frame 403 is slidably installed on the frame 1 through the guide rod 409. An arc head top plate 410 is installed at the upper end of the lifting frame 403. A push rod 411 is fixedly installed at the other side of the sliding frame 402.

[0023] In this embodiment, the middle section of the outer cylinder 3 is hinged to the fixing frame 405. A sliding rod 31 is fixedly installed in the clearance opening 5. A slider 32 is slidably installed on the sliding rod 31. A spring 33 is sleeved on the sliding rod 31 between the slider 32 and the end of the clearance opening 5. A guide groove 34 is fixedly installed at the lower end of the slider 32. A push rod 411 is placed in the guide groove 34. The upper end of the slider 32 passes through the clearance opening 5 and abuts against the threaded outer surface of the purification inner cylinder.

[0024] It should be noted that the drive motor 401 is a servo motor, and both ends of the purification inner cylinder 2 and the outer covering cylinder 3 are connected to the external circulating water circuit.

[0025] In this embodiment, the clearance opening 5 cooperates with the slider 32.

[0026] In this embodiment, the arc-shaped top plate 410 is placed vertically between the fixed frame 405 and the push rod 411, that is, the arc-shaped top plate 410 and the lifting frame 403 will not have rigid contact with the fixed frame 405, the teeth on the notched gear 404 are symmetrical, and the arc-shaped top plate 410 is detachable and cooperates with the outer wall of the outer cylinder 3.

[0027] In addition, the guide slot 34 is in the shape of an inverted "Y".

[0028] Working process and principle: In the process of using this invention, the reverse osmosis membrane to be purified is first placed in the purification inner cylinder 2. Through the circulating water channels at both ends of the purification inner cylinder 2 and the outer cylinder 3, a low-pressure purified water flow is continuously provided to the internal reverse osmosis membrane. The outer cylinder 3 covers the purification inner cylinder 2 to reduce noise during the purification process. Then, the drive motor 401 is started, causing its output end to drive the notched gear 404 (e.g., Figure 2 Rotate clockwise as shown in the diagram;

[0029] When the teeth on the notched gear 404 mesh with the rack 406, the sliding frame 402 is driven to slide on the fixed frame 405. Under the push of the push rod 411 on the sliding frame 402, the slider 32 is pushed to slide on the slide rod 31 through the guide slot 34. The upper end face of the slider 32 placed in the threaded groove on the inner tube 2 will drive the inner tube 2 to rotate inside the outer tube 3, thereby causing the reverse osmosis membrane inside to rotate synchronously. The purified water flow forms a flow around the inner tube 2, which can fully purify the entire reverse osmosis membrane. At this time, the tension spring 407 on the opposite side of the sliding direction of the push rod 411 is in a stretched state, and the arc head top plate 410 does not contact the outer wall of the outer tube 3.

[0030] When the teeth on the notched gear 404 disengage from the rack 406, under the elastic force of the tension spring 33 of the tension spring 407, the fixed frame 405 and the slider 32 quickly reset and retract, causing the inner purification cylinder 2 to rotate synchronously in the opposite direction (counterclockwise) with variable acceleration. This causes the viscous fluid adhering to the groove of the end sealing gasket to be flung and placed on the inner wall of the inner purification cylinder 2. At the same time, under the pull of the connecting rod 408, the lifting frame 403 slides upward on the guide rod 409, and the end of the arc head top plate 410 abuts against the outer wall of the outer covering cylinder 3. This causes the outer covering cylinder 3 to sway synchronously around the hinge point with the fixed frame 405 and tilt towards the outlet, so that the flung viscous fluid adhering to the outlet is discharged along with the low-pressure water flow.

[0031] Then, the teeth of another symmetrical notched gear 404 mesh with the rack 406, achieving continuous low-pressure reciprocating purification of the reverse osmosis membrane.

[0032] Based on the above, the present invention sets up an outer cylinder 3, a purification inner cylinder 2 and a rotating and tumbling mechanism 4 on the frame 1. The output end of the drive motor 401 drives the notched gear 404 to rotate. When the teeth on the notched gear 404 mesh with the rack 406, the purification inner cylinder 2 rotates inside the outer cylinder 3. The purified water flows around the purification inner cylinder 2, which can comprehensively purify the entire reverse osmosis membrane and avoid excessive force on the end of the reverse osmosis membrane caused by unidirectional water flow purification, thus ensuring the quality of the purified product.

[0033] When the teeth on the notched gear 404 disengage from the rack 406, under the elastic force of the tension spring 33 of the tension spring 407, the fixed frame 405 and the slider 32 quickly reset and retract, causing the inner purification cylinder 2 to rotate synchronously in the opposite direction with variable acceleration. This causes the viscous fluid deposits attached to the groove of the end sealing gasket to be flung away. At the same time, the end of the arc-shaped top plate 410 abuts against the outer wall of the outer casing 3, causing the outer casing 3 to sway synchronously around the hinge point with the fixed frame 405 and tilt towards the outlet. This allows the flung viscous fluid deposits to slide towards the outlet with the low-pressure water flow and be discharged together, ensuring the purification effect without affecting the purification of the next reverse osmosis membrane.

[0034] As is known from common technical knowledge, this invention can be implemented through other embodiments that do not depart from its spirit or essential characteristics. Therefore, the disclosed embodiments described above are merely illustrative in all respects and are not the only ones. All modifications within the scope of this invention or its equivalents are included in this invention.

Claims

1. A purification device for wastewater treatment using a reverse osmosis membrane, characterized in that, The device includes a frame (1), a purification inner cylinder (2), a covering outer cylinder (3), and a rotating and tumbling mechanism (4). One side of the covering outer cylinder (3) is fixedly installed on the frame (1), and the other side of the covering outer cylinder (3) is detachably installed on the other side of the frame (1). A clearance opening (5) is provided at the lower end of the covering outer cylinder (3). The purification inner cylinder (2) is coaxially rotatably installed inside the covering outer cylinder (3). The outer surface of the purification inner cylinder is threaded. A reverse osmosis membrane is placed inside the purification inner cylinder (2). The rotating and tumbling mechanism (4) is installed on the frame (1) and is used to purify the reverse osmosis membrane and remove viscous deposits in the purification inner cylinder under low pressure. The rotating and tilting mechanism (4) includes a drive motor (401), a sliding frame (402), and a lifting frame (403). The drive motor (401) is mounted on the frame (1), and a notched gear (404) is installed at the output end of the drive motor (401). A fixed frame (405) is provided on the frame (1). There are two sliding frames (402) that are symmetrically slidably arranged at both ends of the fixed frame (405). A rack (406) that meshes with the notched gear (404) is installed at the upper end of the sliding frame (402). Two symmetrically arranged tension springs (407) are fixedly installed at the lower end of the sliding frame (402). The other end of the two tension springs (407) is fixedly connected to the fixed frame (405). A connecting rod (408) is hinged to one side of the sliding frame (402). The other end of the connecting rod (408) is connected to the lifting frame (403). The lifting frame (403) is slidably installed on the frame (1) through the guide rod (409). An arc head top plate (410) is installed at the upper end of the lifting frame (403). A push rod (411) is fixedly installed at the other side of the sliding frame (402).

2. The purification equipment for reverse osmosis membrane wastewater treatment according to claim 1, characterized in that: The middle section of the outer cylinder (3) is hinged to the fixed frame (405). A slide rod (31) is fixedly installed in the clearance opening (5). A slider (32) is slidably installed on the slide rod (31). A spring (33) is sleeved on the slide rod (31) between the slider (32) and the end of the clearance opening (5). A guide groove (34) is fixedly installed at the lower end of the slider (32). A push rod (411) is placed in the guide groove (34). The upper end of the slider (32) passes through the clearance opening (5) and abuts against the threaded outer surface of the purification inner cylinder.

3. The purification equipment for reverse osmosis membrane wastewater treatment according to claim 1, characterized in that: The clearance opening (5) cooperates with the slider (32).

4. The purification equipment for reverse osmosis membrane wastewater treatment according to claim 1, characterized in that: The arc-shaped top plate (410) is positioned vertically between the fixed frame (405) and the push rod (411).

5. The purification equipment for reverse osmosis membrane in wastewater treatment according to claim 1, characterized in that: The teeth on the notched gear (404) are symmetrical.

6. The purification equipment for reverse osmosis membrane in wastewater treatment according to claim 1, characterized in that: The arc-shaped top plate (410) is detachable and fits into the outer wall of the outer cylinder (3).

7. The purification equipment for reverse osmosis membrane wastewater treatment according to claim 2, characterized in that: The guide slot (34) is in the shape of an inverted "Y".

Images