A wastewater treatment device for light stabilizer production

Abstract

This utility model belongs to the field of wastewater treatment technology, specifically relating to a wastewater treatment device for light stabilizer production. It includes a neutralization tank, a sedimentation tank, a filter tank, and a purification tank. The neutralization tank and sedimentation tank are connected by pipes, the sedimentation tank and filter tank are connected by pipes, and the filter tank and purification tank are connected by pipes. A driving component is installed on the top cover of the sedimentation tank. This light stabilizer production wastewater treatment device utilizes a protective stirring mechanism. A return spring presses a gasket, creating controllable friction between the gasket and the transmission gear. When impurities in the tank increase, causing the stirring resistance to exceed a set value, the transmission gear can overcome friction and idle, while the stirring shaft stops rotating, preventing motor damage due to overload. This "slippage" protection design effectively copes with sudden changes in resistance during sedimentation, prevents motor damage, significantly reduces equipment failure frequency, and extends motor lifespan.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a wastewater treatment device for light stabilizer production. Background Technology

[0002] Light stabilizers are key additives in polymer materials. The wastewater generated during their production process has a high concentration of organic matter, high salinity, and contains recalcitrant pollutants (such as benzotriazole derivatives). Direct discharge of such wastewater can lead to ecological problems such as soil salinization and water eutrophication.

[0003] Currently, in existing technologies, the wastewater generated during the production process is generally neutralized first, then reagents are added to the neutralized wastewater for oxidation and precipitation, the precipitated impurities are discharged, and the treated wastewater is then filtered and purified before it can be discharged. However, during the precipitation process, the amount of impurities in the sedimentation tank increases, and the resistance of the stirring shaft increases as it stirs the sedimentation tank. When the impurities reach a certain level, excessive resistance may damage the motor, and a large amount of sediment can also affect the reaction of the wastewater. Furthermore, the amount of sediment in the sedimentation tank is difficult to determine. Therefore, a wastewater treatment device for light stabilizer production is proposed. Utility Model Content

[0004] The main objective of this invention is to provide a wastewater treatment device for light stabilizer production, which can solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention proposes a wastewater treatment device for light stabilizer production, comprising a neutralization tank, a sedimentation tank, a filter tank, and a purification tank. The neutralization tank and the sedimentation tank are connected by a pipeline, the sedimentation tank and the filter tank are connected by a pipeline, and the filter tank and the purification tank are connected by a pipeline. A driving component is provided on the top cover plate of the sedimentation tank, and a protective stirring mechanism is provided on the sedimentation tank. The protective stirring mechanism includes:

[0006] A stirring shaft is rotatably connected to the top cover plate of the sedimentation tank via bearings, and a stirring rod is fixedly connected to the outer wall of the stirring shaft;

[0007] A transmission gear, which is penetrated by and rotatably connected to the stirring shaft;

[0008] A protective component is disposed above the transmission gear.

[0009] Preferably, a guide block is fixedly connected to the outer wall of the stirring shaft.

[0010] Preferably, the protective component includes a gasket, the stirring shaft passes through the pressure ring and is slidably connected to the stirring shaft, the gasket and the pressure ring are elastically connected by a return spring, the return spring presses the gasket, so that the gasket and the transmission gear have a large frictional force, the frictional force is determined by the pressure and the coefficient of friction.

[0011] Preferably, a guide rod is fixedly connected to the upper side of the pressure ring, and a screw is rotatably connected to the upper side of the pressure ring. A fixing ring is detachably connected to the top of the stirring shaft by bolts. The fixing ring is threadedly connected to the screw. The guide rod passes through the fixing ring and is slidably connected to the fixing ring. The fixing ring can be disassembled by using bolts, which facilitates the replacement of the gasket. The position of the pressure ring can be adjusted by using the screw, which in turn adjusts the pressure of the return spring on the gasket.

[0012] Preferably, the inner surface of the gasket has a groove that matches the guide block.

[0013] Preferably, the driving component includes a motor and a drive gear. The motor is fixedly connected to the top cover plate of the sedimentation tank. The output end of the motor is fixed to the drive gear, which meshes with a transmission gear. The output shaft of the motor drives the drive gear to rotate. When the shim presses against the transmission gear, the transmission gear drives the stirring shaft to rotate, which in turn drives the stirring rod to agitate the sedimentation tank, accelerating the reaction and sedimentation of impurities. When there are many impurities, the stirring rod experiences greater resistance. At this time, when the output shaft of the motor drives the drive gear to rotate, the transmission gear overcomes the friction and rotates, and the stirring shaft stops rotating to prevent damage to the motor. When the stirring shaft stops rotating, it alerts the staff to discharge the sedimented impurities.

[0014] Preferably, the sedimentation tank has a reagent inlet at the top and a waste outlet at the bottom.

[0015] This invention provides a device for treating wastewater from the production of light stabilizers. It has the following beneficial effects:

[0016] (1) The wastewater treatment device for light stabilizer production utilizes a protective stirring mechanism, with a reset spring pressing the gasket to create controllable friction between the gasket and the transmission gear. When impurities in the tank increase, causing the stirring resistance to exceed the set value, the transmission gear can overcome the friction and idle, while the stirring shaft stops rotating, preventing the motor from being damaged due to overload. This "slippage" protection design effectively addresses sudden changes in resistance during sedimentation, prevents motor damage, significantly reduces equipment failure frequency, extends motor lifespan, and ensures continuous and stable operation of the wastewater treatment system.

[0017] (2) The abnormal state of the stirring shaft stopping rotation of the light stabilizer production wastewater treatment device can be directly used as an early warning signal that the sedimentation tank needs to be discharged. This solves the problem that the amount of sediment is difficult to judge in real time in the traditional process, and avoids the reaction efficiency being affected or the equipment being blocked due to the lag in discharge. At the same time, the fixing ring can be disassembled by the use of bolts, and the worn gasket can be quickly disassembled and replaced. The gasket pressure can be precisely adjusted by the screw, which can flexibly adapt to the stirring needs of wastewater of different concentrations, realize the convenience of maintenance operation, and effectively improve the overall operation and maintenance efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0020] Figure 2 This is a partial cross-sectional structural diagram of the present invention;

[0021] Figure 3 This is a schematic diagram of the protective stirring mechanism of this utility model;

[0022] Figure 4 This is a schematic diagram of part of the protective stirring mechanism of this utility model;

[0023] Figure 5 This is a schematic diagram of the gasket structure of this utility model.

[0024] Explanation of icon numbers:

[0025] 1. Neutralization tank; 2. Sedimentation tank; 3. Filter tank; 4. Purification box; 5. Drive unit; 6. Protective stirring mechanism;

[0026] 21. Reagent inlet; 22. Impurity outlet;

[0027] 51. Electric motor; 52. Drive gear;

[0028] 61. Stirring shaft; 62. Bearing; 63. Stirring rod; 64. Transmission gear; 65. Protective assembly; 611. Guide block; 651. Gasket; 652. Return spring; 653. Pressure ring; 654. Guide rod; 655. Screw; 656. Retaining ring; 657. Bolt.

[0029] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0030] 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.

[0031] Please see Figures 1-5 This utility model proposes a wastewater treatment device for light stabilizer production, including a neutralization tank 1, a sedimentation tank 2, a filter tank 3, and a purification tank 4. The neutralization tank 1 and the sedimentation tank 2 are connected by a pipeline, and the sedimentation tank 2 and the filter tank 3 are connected by a pipeline. The top of the sedimentation tank 2 is provided with a reagent inlet 21, and the bottom of the sedimentation tank 2 is provided with a discharge port 22. Reaction reagents can be added through the reagent inlet 21 to allow the wastewater to react and its impurities to settle. The filter tank 3 and the purification tank 4 are connected by a pipeline. A driving component 5 is provided on the top cover plate of the sedimentation tank 2, and a protective stirring mechanism 6 is provided on the sedimentation tank 2.

[0032] In an embodiment of this utility model, the protective stirring mechanism 6 includes a stirring shaft 61, a transmission gear 64, and a protective component 65. The stirring shaft 61 is rotatably connected to the top cover plate of the sedimentation tank 2 via a bearing 62. A stirring rod 63 is fixedly connected to the outer wall of the stirring shaft 61. The transmission gear 64 is penetrated by the stirring shaft 61 and rotatably connected to the stirring shaft 61. The protective component 65 is disposed above the transmission gear 64. The stirring shaft 61 drives the stirring rod 63 to rotate, which can accelerate the reaction and sedimentation of wastewater in the sedimentation tank 2.

[0033] Furthermore, a guide block 611 is fixedly connected to the outer wall of the stirring shaft 61. The protective assembly 65 includes a gasket 651. The stirring shaft 61 passes through the pressure ring 653 and is slidably connected to it. The gasket 651 and the pressure ring 653 are elastically connected by a return spring 652. The return spring 652 presses the gasket 651, giving the gasket 651 and the transmission gear 64 a large frictional force. The frictional force is determined by the pressure and the coefficient of friction. The inner surface of the gasket 651 has a groove that matches the guide block 611. A guide rod 654 is fixedly connected to the upper side of the pressure ring 653. The upper side of the pressure ring 653 is rotatably connected to... A screw 655 is attached, and a retaining ring 656 is detachably connected to the top of the stirring shaft 61 via a bolt 657. The retaining ring 656 can be removed by using the bolt 657, making it easy to replace the gasket 651. The retaining ring 656 is threadedly connected to the screw 655, and the guide rod 654 passes through the retaining ring 656 and is slidably connected to the retaining ring 656. By using the screw 655, the position of the pressure ring 653 can be adjusted, thereby adjusting the pressure of the return spring 652 on the gasket 651. This allows for flexible adaptation to the stirring needs of wastewater with different concentrations, facilitating maintenance operations and effectively improving overall operation and maintenance efficiency.

[0034] Furthermore, the driving component 5 includes a motor 51 and a drive gear 52. The motor 51 is fixedly connected to the top cover plate of the sedimentation tank 2. The output end of the motor 51 is fixed to the drive gear 52. The drive gear 52 meshes with the transmission gear 64. The output shaft of the motor 51 drives the drive gear 52 to rotate. When the shim 651 presses the transmission gear 64, the transmission gear 64 drives the stirring shaft 61 to rotate, which in turn drives the stirring rod 63 to stir the sedimentation tank 2, accelerating the reaction and sedimentation of impurities. When there are many impurities, the stirring rod 63 experiences greater resistance. At this time, when the output shaft of the motor 51 drives the drive gear 52 to rotate, the transmission gear 64 overcomes the friction and rotates, and the stirring shaft 61 stops rotating, preventing damage to the motor 51. This "slippage" protection design can effectively cope with sudden changes in resistance during sedimentation, prevent damage to core components, significantly reduce the frequency of equipment failure, extend the service life of the motor 51, and provide a guarantee for the continuous and stable operation of wastewater treatment. Moreover, the abnormal state of the stirring shaft 61 stopping rotation can be directly used as an early warning signal that the sedimentation tank 2 needs to be discharged, solving the problem that the amount of sediment is difficult to judge in real time in traditional processes.

[0035] It should be noted that the above electrical components are all existing technology products. Those skilled in the art should select, install and complete the circuit debugging work according to the needs of use to ensure that all electrical appliances can work normally. The components are all general standard parts or components known to those skilled in the art. Their structure and principle can be known by those skilled in the art through technical manuals or conventional experimental methods. No specific restrictions are made here.

[0036] In use, the motor 51 drives the drive gear 52 to rotate. When the shim 651 presses the transmission gear 64, the transmission gear 64 drives the stirring shaft 61 to rotate, which in turn drives the stirring rod 63 to stir the sedimentation tank 2, accelerating the reaction and sedimentation of impurities. When there are a lot of impurities, the stirring rod 63 experiences greater resistance. At this time, when the output shaft of the motor 51 drives the drive gear 52 to rotate, the transmission gear 64 overcomes the friction and rotates, and the stirring shaft 61 stops rotating to prevent damage to the motor 51. The abnormal state of the stirring shaft 61 stopping can be directly used as an early warning signal that the sedimentation tank 2 needs to be discharged. The sediment impurities in the sedimentation tank 2 are discharged through the discharge port 22.

[0037] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A light stabilizer production wastewater treatment device comprising a neutralization tank (1), a sedimentation tank (2), a filter tank (3), and a purification tank (4), characterized by: The neutralization tank (1) and the sedimentation tank (2) are connected by a pipe. The sedimentation tank (2) and the filter tank (3) are connected by a pipe. The filter tank (3) and the purification box (4) are connected by a pipe. A driving component (5) is provided on the top cover plate of the sedimentation tank (2). A protective stirring mechanism (6) is provided on the sedimentation tank (2). The protective stirring mechanism (6) includes: A stirring shaft (61) is rotatably connected to the top cover plate of the sedimentation tank (2) via a bearing (62), and a stirring rod (63) is fixedly connected to the outer wall of the stirring shaft (61). A transmission gear (64) is passed through and rotatably connected to a stirring shaft (61); A protective component (65) is disposed above the transmission gear (64).

2. The light stabilizer production wastewater treatment apparatus according to claim 1, characterized by: A guide block (611) is fixedly connected to the outer wall of the stirring shaft (61).

3. The light stabilizer production wastewater treatment apparatus according to claim 1, characterized by: The protective component (65) includes a gasket (651), the stirring shaft (61) passes through the pressure ring (653) and is slidably connected to the stirring shaft (61), and the gasket (651) and the pressure ring (653) are elastically connected by a return spring (652).

4. A light stabilizer production wastewater treatment device according to claim 3, characterized by: A guide rod (654) is fixedly connected to the upper side of the pressure ring (653), and a screw (655) is rotatably connected to the upper side of the pressure ring (653). A fixing ring (656) is detachably connected to the top of the stirring shaft (61) by a bolt (657). The fixing ring (656) is threadedly connected to the screw (655), and the guide rod (654) passes through the fixing ring (656) and is slidably connected to the fixing ring (656).

5. The light stabilizer production wastewater treatment apparatus according to claim 3, characterized by: The inner surface of the gasket (651) is provided with a groove that matches the guide block (611).

6. The light stabilizer production wastewater treatment apparatus according to claim 1, characterized by: The driving component (5) includes a motor (51) and a drive gear (52). The motor (51) is fixedly connected to the top cover plate of the sedimentation tank (2). The output end of the motor (51) is fixed to the drive gear (52). The drive gear (52) meshes with the transmission gear (64).

7. The light stabilizer production wastewater treatment apparatus according to claim 1, characterized by: The sedimentation tank (2) has a reagent inlet (21) at the top and a waste outlet (22) at the bottom.

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