Waste water treatment device for TFT-LCD (Thin Film Transistor-Liquid Crystal Display) panel production

Abstract

The utility model discloses a waste water treatment device for TFT-LCD panel production, which belongs to the field of sewage treatment, and comprises a regulating tank, an ozone chamber, an aerobic chamber and a sedimentation tank, the regulating tank is used for regulating the pH value of waste water, the ozone chamber is used for removing compounds in the waste water, the aerobic chamber is used for further removing compounds in the waste water, and the sedimentation tank is used for settling the waste water. The sedimentation tank is used for removing suspended matters and impurities in wastewater, a driving motor is connected with a rotating shaft to drive a bevel gear I and a bevel gear II to drive a threaded shaft to rotate, and a movable block is controlled to be connected with a scraper to drive a scraper blade to scrape sludge and push the sludge to move towards a collecting box, so that the sludge is effectively removed, and the limitation of the device is reduced; the device can deal with sludge in different states, guarantee normal operation of the device and improve the use value of the device, meanwhile, the scraper pushes the cutting claws to cut the sludge into long strips, blockage is avoided, resistance generated when the scraper moves by the sludge is reduced, equipment energy is saved, and the working efficiency of the device is improved.

Description

Technical Field

[0001] The utility model relates to the field of wastewater treatment, in particular to a wastewater treatment device for the production of TFT-LCD panels. Background Art

[0002] The wastewater generated during the production process of TFT-LCD panels contains a variety of pollutants. In order to reduce the impact of wastewater on the environment, corresponding treatment measures are needed.

[0003] A Chinese patent discloses a device for treating wastewater produced by LCD (publication number CN 211497318 U). The patent includes a collection chamber, a mediation chamber, an anaerobic tank, an aerobic tank, a coagulation tank, a sedimentation tank and a clear water tank. The collection chamber is configured to collect wastewater produced by LCD. After being collected by the collection chamber, the wastewater produced by LCD is sequentially connected to the mediation chamber for adjusting pH, the anaerobic tank for removing C / H compounds, the aerobic tank for removing active cleaning agents, the coagulation tank, the sedimentation tank and the clear water tank through pipelines. The system also includes: an acid dosing unit connected to the mediation chamber pipeline, a PAC dosing unit and a PAM dosing unit connected to the coagulation tank pipeline, and a sludge tank connected to the sedimentation tank pipeline. The utility model creatively designs a wastewater treatment device for industrial wastewater produced by LCD. The wastewater treatment device has a simple process flow, is economical and environmentally friendly. The system is used to treat LCD production wastewater with good treatment effect. After treatment, it meets the emission standards. However, the scraper of the patent needs to be driven by water flow to remove the sludge, which requires the device to work in a water environment with a certain flow rate. For static water or water with too slow flow rate, the device cannot work normally, resulting in certain limitations of the device and reducing the use value of the device. Utility Model Content

[0004] The purpose of the utility model is to provide a wastewater treatment device for the production of TFT-LCD panels to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A wastewater treatment device for TFT-LCD panel production, comprising a regulating tank, an ozone chamber, an aerobic chamber and a sedimentation tank, wherein the regulating tank is configured to regulate the pH value of the wastewater, the ozone chamber is configured to remove compounds in the wastewater, the aerobic chamber is configured to further remove compounds in the wastewater, and the sedimentation tank is configured to remove suspended matter and impurities in the wastewater;

[0007] A scraper for scraping off sludge in the sedimentation tank is arranged inside the sedimentation tank, a movable structure for controlling the movement of the scraper is installed on the top of the scraper, a collecting box for collecting sludge impurities in wastewater is fixedly installed on one side of the bottom end of the sedimentation tank, and a partition structure for avoiding sludge blockage is installed on the top of the collecting box.

[0008] As a further solution of the utility model, the movable structure includes a driving motor for providing power to the equipment, and threaded shafts are rotatably connected on both sides of the driving motor. A movable block is provided on the outer wall sliding sleeve of the threaded shaft, and the bottom end of the movable block is fixedly connected to the top end of the scraper.

[0009] As a further solution of the utility model, the driving motor is configured as a dual-axis motor, and the output ends on both sides are fixedly connected to a rotating shaft, the outer walls of the two groups of the rotating shafts are fixedly installed with a bevel gear 1, the outer wall of the bevel gear 1 is meshed with a bevel gear 2 for driving the threaded shaft to rotate, and the two groups of bevel gears 2 are fixedly connected to the two threaded shafts respectively.

[0010] As a further solution of the utility model, both sides of the scraper are tightly fitted with the inner wall of the sedimentation tank, and the bottom end is fixedly connected with a scraper blade for reducing the friction between the scraper and the sedimentation tank, and the side of the scraper close to the collection box is fixedly connected with a dividing claw for preliminary dividing the sludge.

[0011] As a further solution of the utility model, the partition structure includes a fixed shaft, and the outer wall of the fixed shaft is fixedly connected to multiple groups of rotating blades, and a partition plate is fixedly installed inside each group of rotating blades.

[0012] As a further solution of the utility model, a water inlet box is fixedly connected to one side of the sedimentation tank close to the aerobic chamber, a filter plate for removing scum in wastewater is fixedly installed inside the water inlet box, and a water inlet pipe is fixedly connected to the outer wall of the water inlet box.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. When the utility model is used, the driving motor is connected to the rotating shaft to drive the bevel gear 1 and the bevel gear 2 to drive the threaded shaft to rotate, and the movable block is controlled to connect the scraper to drive the scraper to scrape the sludge and push it to the collection box, so as to achieve effective removal of the sludge, reduce the limitations of the device, cope with sludge in different states, ensure the normal operation of the device, and enhance the use value of the device. At the same time, the scraper pushes the dividing claw to divide the sludge into long strips to avoid blockage, reduce the resistance of the sludge to the movement of the scraper, save equipment energy, and improve the working efficiency of the device.

[0015] 2. When the utility model is used, the deadweight of the sludge is used to drive the rotating blades to rotate around the fixed axis, and the partition plate divides the sludge into small pieces again, which is convenient for discharge from the sludge discharge pipe, further reducing the probability of blockage of the device, improving the efficiency and stability of the device in treating sludge, and reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a wastewater treatment device for TFT-LCD panel production.

[0017] Figure 2 A cross-sectional view of the internal structure of a wastewater treatment device for the production of TFT-LCD panels.

[0018] Figure 3 A diagram of the structure of a mobile structure in a wastewater treatment plant for the production of TFT-LCD panels.

[0019] Figure 4 This is a structural diagram of a scraper in a wastewater treatment device for TFT-LCD panel production.

[0020] Figure 5 A structural diagram of a partition structure in a wastewater treatment device for the production of TFT-LCD panels.

[0021] In the figure: 1, regulating tank; 2, ozone chamber; 3, aerobic chamber; 4, sedimentation tank; 5, scraper; 6, collecting box; 7, driving motor; 8, protective cover; 9, fixed shaft; 10, mud discharge pipe; 11, valve; 12, water inlet box; 13, filter plate; 14, water inlet pipe; 15, baffle plate; 16, water outlet pipe; 17, water pump; 18, fixed plate; 19, support column; 20, waste water pipe; 501, scraper; 502, dividing claw; 503, empty groove; 701, threaded shaft; 702, movable block; 703, rotating shaft; 704, bevel gear one; 705, bevel gear two; 706, connecting piece one; 707, connecting piece two; 901, rotating blade; 902, partition plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example 1: Please refer to Figure 1-3, a wastewater treatment device for TFT-LCD panel production, comprising a regulating tank 1, an ozone chamber 2, an aerobic chamber 3 and a sedimentation tank 4, wherein the regulating tank 1 is configured to regulate the pH value of the wastewater, the ozone chamber 2 is configured to remove compounds in the wastewater, the aerobic chamber 3 is configured to further remove compounds in the wastewater, and the sedimentation tank 4 is configured to remove suspended matter and impurities in the wastewater, and the regulating tank 1, the ozone chamber 2 and the aerobic chamber 3 are connected by a pipeline;

[0024] The sedimentation tank 4 is provided with a scraper 5 for scraping off the sludge in the sedimentation tank 4, and a moving structure for controlling the movement of the scraper 5 is installed on the top of the scraper 5. A collecting box 6 for collecting sludge impurities in the wastewater is fixedly installed on one side of the bottom end of the sedimentation tank 4, and a partition structure for avoiding sludge blockage is installed on the top of the collecting box 6;

[0025] The mobile structure includes a driving motor 7 for providing power to the equipment. The driving motor 7 is fixedly installed on the top of the sedimentation tank 4 through a base. Both sides of the driving motor 7 are rotatably connected with threaded shafts 701. The outer wall sliding sleeve of the threaded shaft 701 is provided with a movable block 702. One end of the two threaded shafts 701 passes through the movable block 702. The bottom end of the movable block 702 is fixedly connected to the top of the scraper 5.

[0026] Example 2: Please refer to Figure 3 , the driving motor 7 is configured as a double-axis motor, and the output ends on both sides are fixedly connected with a rotating shaft 703, and the two sets of rotating shafts 703 are fixedly connected to the top of the sedimentation tank 4 by rotating a connecting piece 706 installed at one end thereof, and the outer walls of the two sets of rotating shafts 703 are fixedly installed with a bevel gear 1 704, and the outer wall of the bevel gear 1 704 is meshed with a bevel gear 2 705 for driving the threaded shaft 701 to rotate, and the two sets of bevel gears 2 705 are fixedly connected to the two threaded shafts 701 respectively, and the two threaded shafts 701 are fixedly connected to the top of the sedimentation tank 4 by rotating a connecting piece 2 707 installed at one end thereof;

[0027] A protective cover 8 for protecting the equipment is installed at the top of the driving motor 7. The protective cover 8 is fixedly connected to the outer wall of the sedimentation tank 4 by bolts installed inside the protective cover 8. The protective cover 8 covers the driving motor 7, the rotating shaft 703, the bevel gear 1 704 and the bevel gear 2 705, reducing the damage to the device caused by wind and rain, extending the service life of the device, and preventing corrosion and rust of the equipment from affecting the normal operation of the device.

[0028] See also Figure 4, both sides of the scraper 5 are tightly fitted with the inner wall of the sedimentation tank 4 to enhance the cleaning ability of the scraper 5, and the bottom end is fixedly connected with a scraper blade 501 for reducing the friction between the scraper 5 and the sedimentation tank 4, the material of the scraper blade 501 is set to be silicone, which has a certain softness, and the bottom end of the scraper blade 501 is set to be triangular to enhance the cleaning effect of the scraper blade 501, and the side of the scraper 5 close to the collection box 6 is fixedly connected with a dividing claw 502 for preliminary dividing the sludge, and the dividing claw 502 is provided with a total of multiple groups and symmetrically and evenly distributed. The scraper 5 moves, pushing the dividing claw 502 to move, and the sludge at the bottom of the sedimentation tank 4 is divided into long strips to avoid blockage and reduce the resistance of the sludge to the scraper 5;

[0029] Specifically, the scraper 5 is configured to be tilted as a whole and tilted toward the collecting box 6. An empty groove 503 is opened inside the scraper 5 to facilitate the flow of wastewater. By utilizing the scraper 5's own tilt and the empty groove 503, the resistance of the scraper 5 to the silt when the mobile device drives the scraper 5 to move is reduced, thereby saving equipment energy, improving the working efficiency of the device, and enhancing the practical value of the device.

[0030] See also Figure 5 The partition structure includes a fixed shaft 9, the outer wall of the fixed shaft 9 is fixedly connected to a plurality of groups of rotating blades 901, and a partition plate 902 is fixedly installed inside each group of rotating blades 901, and both ends of the fixed shaft 9 are rotatably connected to the inner wall of the sedimentation tank 4 through bearings;

[0031] Specifically, one end of each set of rotating blades 901 is set to be sawtooth-shaped, which is convenient for better segmentation of sludge. The sludge drives the separation structure to rotate, so that the sludge enters the collection box 6 in batches and in small quantities, avoiding blockage inside the collection box 6.

[0032] See also Figure 1-2 The collecting box 6 is configured to be conical, which can facilitate the sludge to fall into the collecting box 6. A mud discharge pipe 10 is fixedly connected to one side of the collecting box 6, and a valve 11 for the mud discharge pipe 10 to flow is fixedly installed on the outer wall of the mud discharge pipe 10.

[0033] See also Figure 1-2 A water inlet box 12 is fixedly connected to one side of the sedimentation tank 4 near the aerobic chamber 3, a filter plate 13 for removing scum in the wastewater is fixedly installed inside the water inlet box 12, a water inlet pipe 14 is fixedly connected to the outer wall of the water inlet box 12, and the other end of the water inlet pipe 14 is connected to the aerobic chamber 3. A water inlet slot for wastewater to enter is opened on one side of the sedimentation tank 4 near the water inlet box 12, a baffle 15 for slowing down the flow rate of wastewater is fixedly connected inside the sedimentation tank 4, and the sedimentation tank 4 adopts a horizontal flow sedimentation method;

[0034] A water outlet pipe 16 is fixedly connected to the side of the sedimentation tank 4 away from the water inlet pipe 14, and a water pump 17 is fixedly connected to one end of the water outlet pipe 16. A fixing plate 18 for limiting and fixing is fixedly installed at the bottom end of the water pump 17. The fixing plate 18 is fixedly connected to the outer wall of the sedimentation tank 4. A plurality of support columns 19 for supporting stability are fixedly installed at the bottom end of the sedimentation tank 4, and a wastewater pipe 20 is fixedly connected to one side of the regulating tank 1.

[0035] The working principle of the utility model is:

[0036] First, the wastewater enters the regulating tank 1 from the wastewater pipe 20 to adjust the pH value of the wastewater to a suitable range, and then enters the ozone chamber 2 and the aerobic chamber 3 from the pipeline in turn to remove the compounds in the wastewater, and then enters the water inlet tank 12 from the water inlet pipe 14, passes through the filter plate 13 to remove the scum in the water, and enters the sedimentation tank 4 from the water inlet slot. The baffle plate 15 slows down the water speed to facilitate the precipitation of impurities. After precipitation is completed, the water source inside the sedimentation tank 4 is pumped out by the water pump 17 connected to the outlet pipe 16, and the residual sludge is removed. The drive motor 7 is started to connect the rotating shaft 703 to drive the bevel gear 1 704 to rotate, so that the bevel gear 2 705 drives the threaded shaft 701 to rotate accordingly, and the movable block 702 connected to the scraper 5 is controlled to move, and the dividing claw 502 is pushed to divide the sludge into long strips, and the scraper 501 is allowed to scrape the sludge and push it to the collection box 6. The dead weight of the sludge drives the rotating blade 901 to rotate around the fixed shaft 9, and the partition plate 902 divides the sludge into small pieces again, and finally it is discharged from the sludge discharge pipe 10.

[0037] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A wastewater treatment device for TFT-LCD panel production, comprising a regulating tank (1), an ozone chamber (2), an aerobic chamber (3) and a sedimentation tank (4), characterized in that: The regulating tank (1) is configured to regulate the pH value of the wastewater, the ozone chamber (2) is configured to remove compounds in the wastewater, the aerobic chamber (3) is configured to further remove compounds in the wastewater, and the sedimentation tank (4) is configured to remove suspended matter and impurities in the wastewater; A scraper (5) for scraping off sludge in the sedimentation tank (4) is arranged inside the sedimentation tank (4), a moving structure for controlling the movement of the scraper (5) is installed on the top of the scraper (5), a collecting box (6) for collecting sludge impurities in wastewater is fixedly installed on one side of the bottom end of the sedimentation tank (4), and a partition structure for avoiding sludge blockage is installed on the top of the collecting box (6).

2. The wastewater treatment device for TFT-LCD panel production according to claim 1, characterized in that: The mobile structure comprises a driving motor (7) for providing power to the device, and threaded shafts (701) are rotatably connected to both sides of the driving motor (7), and a movable block (702) is slidably sleeved on the outer wall of the threaded shaft (701), and the bottom end of the movable block (702) is fixedly connected to the top end of the scraper (5).

3. The wastewater treatment device for TFT-LCD panel production according to claim 2, characterized in that: The driving motor (7) is configured as a dual-axis motor, and the output ends on both sides are fixedly connected to a rotating shaft (703), the outer walls of the two groups of rotating shafts (703) are fixedly mounted with a bevel gear 1 (704), the outer wall of the bevel gear 1 (704) is meshed with a bevel gear 2 (705) for driving the threaded shaft (701) to rotate, and the two groups of bevel gear 2 (705) are respectively fixedly connected to the two threaded shafts (701).

4. The wastewater treatment device for TFT-LCD panel production according to claim 1, characterized in that: Both sides of the scraper (5) are tightly fitted to the inner wall of the sedimentation tank (4), and a scraper blade (501) for reducing friction between the scraper (5) and the sedimentation tank (4) is fixedly connected to the bottom end; and a dividing claw (502) for initially dividing sludge is fixedly connected to the side of the scraper (5) close to the collection box (6).

5. The wastewater treatment device for TFT-LCD panel production according to claim 1, characterized in that: The partition structure comprises a fixed shaft (9), the outer wall of the fixed shaft (9) being fixedly connected to a plurality of groups of rotating blades (901), and a partition plate (902) being fixedly installed inside each group of rotating blades (901).

6. The wastewater treatment device for TFT-LCD panel production according to claim 1, characterized in that: A water inlet box (12) is fixedly connected to one side of the sedimentation tank (4) close to the aerobic chamber (3), a filter plate (13) for removing scum in wastewater is fixedly installed inside the water inlet box (12), and a water inlet pipe (14) is fixedly connected to the outer wall of the water inlet box (12).

Images