Paint slag filtering and precipitating device for paint spraying sewage treatment

Abstract

The utility model discloses a paint slag filtering and precipitating device for paint spraying sewage treatment, which relates to the technical field of sewage treatment and comprises an equipment body, the equipment body comprises a plurality of stirring bins and a precipitating tank, the plurality of stirring bins are separated by fixedly arranged clapboards, matched fences are embedded and fixed in the lower ends of the clapboards, and L-shaped plates are arranged on the input sides of the clapboards. A plurality of evenly-distributed cleaning columns are fixedly arranged on the inner side of the L-shaped plate in the horizontal direction, a second lead screw is arranged in the end of the L-shaped plate, a second motor is arranged at the upper end of the second lead screw, a baffle is arranged on the output side of the partition plate, a sliding block is arranged at the upper end of the partition plate, a first lead screw is arranged in the sliding block, a first motor is arranged at the end of the first lead screw, and the sliding block horizontally and linearly moves in a reciprocating mode to drive the baffle to vertically ascend and descend. By adjusting the size of the circulating opening of the fence, the flowing speed of water flow between the stirring bins is changed, the paint slag filtering and precipitating efficiency is improved, in addition, the fence blocks large impurities, meanwhile, dredging is conducted in cooperation with vertical lifting of the cleaning column on the input side, and it is guaranteed that water flow passing is not affected.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a paint sludge filtration and sedimentation device for treating paint spraying wastewater. Background Technology

[0002] Paint spraying wastewater contains a lot of paint residue, which can easily cause blockages in pipes and spray towers and make the water turbid. If this type of wastewater is discharged directly without treatment, it will cause serious damage to the ecological environment. Therefore, it is necessary to purify it through paint residue filtration and sedimentation equipment to ensure that the wastewater meets environmental discharge standards or can be recycled.

[0003] In existing paint sludge filtration and sedimentation equipment, wastewater is mixed with chemicals in a mixing chamber to form flocs. The flocculation is carried out by mixing and flocculating in multiple mixing chambers in sequence to improve the paint sludge filtration and sedimentation effect. However, the flow of wastewater between the mixing chambers is achieved by overflow from the high and low plates at the top of the mixing chambers. The slow water flow speed affects the paint sludge filtration and sedimentation efficiency.

[0004] To address the aforementioned problems, this utility model provides a paint sludge filtration and sedimentation device for treating paint spraying wastewater. Utility Model Content

[0005] The purpose of this invention is to provide a paint sludge filtration and sedimentation device for paint spraying wastewater treatment. By adjusting the size of the flow opening of the screen, the flow speed of water between the mixing chambers is changed, thereby improving the paint sludge filtration and sedimentation efficiency. In addition, the screen blocks larger impurities, and at the same time, it works in conjunction with the vertical lifting and lowering of the cleaning column on the input side to unclog the flow and ensure that the water flow is not affected, thus solving the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a paint sludge filtration and sedimentation device for paint spraying wastewater treatment, comprising a device body, the device body including several mixing chambers and a sedimentation tank, the several mixing chambers being separated by fixed partitions, a matching fence being fitted and fixed inside the lower end of the partition, an L-shaped plate being provided on the input side of the partition, several evenly distributed cleaning columns being fixed horizontally on the inner side of the L-shaped plate, a second lead screw being provided inside the end of the L-shaped plate, a second motor being provided at the upper end of the second lead screw, a baffle being provided on the output side of the partition, a slider being provided at the upper end of the partition, a first lead screw being provided inside the slider, a first motor being provided at the end of the first lead screw, the slider reciprocating linearly in the horizontal direction driving the baffle to move vertically up and down.

[0007] Furthermore, guide rods are symmetrically arranged at both ends of the output side of the partition, and first fixing plates are symmetrically fixed at the upper and lower ends of the guide rods. The sides of the first fixing plates are fixed on the side of the output side of the partition, and the two ends of the baffle are internally slidably connected to the outer sides of the corresponding first fixing plates. The back of the baffle is in contact with and slides against the side of the output side of the fence.

[0008] Furthermore, a second fixing plate is symmetrically fixed at the two edges of the upper end of the partition plate. The first motor is fixedly installed on the side of the corresponding second fixing plate, and its output end extends and is fixedly connected to the end of the first lead screw. The outer side of the first lead screw away from the first motor is rotatably connected to the inside of the corresponding second fixing plate through a bearing. The first lead screw is threadedly connected to the inside of the slider. The bottom end of the slider is slidably connected to the upper end of the partition plate. An L-shaped rod is fixedly installed on the side of the slider. A connecting post is fixedly installed on the side of the L-shaped rod away from the slider. An inclined groove is opened on the front end face of the baffle plate. The connecting post is in contact with the inner surface of the inclined groove.

[0009] Furthermore, the size of the baffle is matched to the size of the fence.

[0010] Furthermore, a rectangular groove is provided at the edge of the input side of the partition. The second motor is fixedly installed on the top surface inside the rectangular groove. The output end of the second motor is fixedly connected to the upper end of the second lead screw. The outer side of the bottom end of the second lead screw is rotatably connected to the bottom end of the rectangular groove through a bearing. The second lead screw is internally threaded to the end of the L-shaped plate. The outer side of the end of the L-shaped plate is slidably connected to the inner surface of the rectangular groove.

[0011] Furthermore, there is a certain gap between the inner side of the L-shaped plate and the side of the fence input. The cleaning column part of the structure is located inside the fence flow opening. The cleaning column and the fence flow opening correspond one-to-one. The cleaning column and the baffle do not interfere with each other.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This utility model provides a paint sludge filtration and sedimentation device for treating paint spraying wastewater. Wastewater is pumped to a mixing chamber via a lift pump and pipeline. A dosing pump adds chemicals through the pipeline, and a stirrer thoroughly mixes the chemicals with the wastewater, causing a large amount of flocculent material to gradually appear in the water. Paint sludge particles in the water are adsorbed into the flocculent material, achieving the effect of separating sludge and water and clarifying the water quality. The water then flows through a screen into the next mixing chamber, where chemicals are added and stirred again, and flocculation occurs again. This process is repeated multiple times until complete flocculation. The water then flows into a sedimentation tank to begin sedimentation. During this process, the flow rate can be adjusted by changing the size of the screen opening. A first motor drives... The first lead screw rotates, causing the slider to reciprocate horizontally, which in turn causes the baffle to move vertically up and down. This adjusts the size of the grate's flow opening, thereby increasing the water flow speed between the mixing chambers and improving the efficiency of paint sludge filtration and sedimentation. The grate can also block larger impurities. If impurities are blocked on the grate's input side, the second motor drives the second lead screw to rotate, causing the L-shaped plate to move vertically up and down. This, in turn, causes several cleaning columns to move vertically up and down within the grate's flow opening, pushing the impurities upwards or downwards to the upper or lower side of the grate's input side. Due to the water flow, the impurities are adsorbed on the grate's input side, thus clearing the grate and allowing water flow to continue. The purpose of this design is to improve the efficiency of paint sludge filtration and sedimentation by adjusting the size of the grate's flow opening to change the water flow speed between the mixing chambers. In addition, the grate blocks larger impurities, and the vertical movement of the cleaning columns on the input side ensures that water flow is not affected. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the output side structure of the partition plate in this utility model;

[0016] Figure 3 This is a schematic diagram of the input side structure of the partition plate in this utility model;

[0017] Figure 4 This is a schematic diagram showing the location of the connecting column in this utility model.

[0018] In the diagram: 1. Equipment body; 2. Mixing chamber; 3. Sedimentation tank; 4. Baffle; 5. Fence; 6. First fixing plate; 7. Guide rod; 8. Baffle; 9. Inclined chute; 10. Second fixing plate; 11. First lead screw; 12. First motor; 13. Sliding block; 14. L-shaped rod; 15. Connecting column; 16. Rectangular chute; 17. Second motor; 18. Second lead screw; 19. L-shaped plate; 20. Cleaning column. Detailed Implementation

[0019] 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.

[0020] To address the technical challenge of improving the filtration and sedimentation efficiency of paint sludge, such as... Figures 1-4 As shown, the following preferred technical solutions are provided:

[0021] A paint sludge filtration and sedimentation device for treating paint spraying wastewater includes a device body 1, which contains several mixing chambers 2 and a sedimentation tank 3. The mixing chambers 2 are separated by fixed partitions 4. Matching fences 5 are embedded and fixed inside the lower end of the partitions 4. An L-shaped plate 19 is provided on the input side of the partitions 4. Several evenly distributed cleaning columns 20 are fixed horizontally on the inner side of the L-shaped plate 19. A second lead screw 18 is provided inside the end of the L-shaped plate 19. A second motor 17 is provided at the upper end of the second lead screw 18. A baffle 8 is provided on the output side of the partitions 4. A slider 13 is provided at the upper end of the partitions 4. A first lead screw 11 is provided inside the slider 13. A first motor 12 is provided at the end of the first lead screw 11. The horizontal reciprocating linear motion of the slider 13 drives the baffle 8 to move vertically up and down.

[0022] Specifically, wastewater is pumped to mixing chamber 2 via a booster pump and pipeline. A dosing pump adds chemicals through the pipeline, and a mixer thoroughly mixes the chemicals with the wastewater, causing a large amount of flocculent material to gradually form in the water. Paint residue particles in the water are adsorbed into the flocculent material, achieving separation of sludge and water and clarifying the water quality. The water then flows through the screen 5 into the next mixing chamber 2, where chemicals are added and the mixture is stirred again for further flocculation. This process is repeated multiple times until complete flocculation occurs. The water then flows into sedimentation tank 3 to begin settling. During this process, the flow rate can be adjusted by changing the size of the opening in the screen 5. The first motor 12 drives the first lead screw 11 to rotate, causing the slider 13 to move horizontally. The reciprocating linear motion drives the baffle 8 to move vertically up and down, adjusting the size of the flow opening of the grate 5. This increases the water flow speed within the mixing chamber 2, thereby improving the efficiency of paint sludge filtration and sedimentation. The grate 5 can also block larger impurities. If impurities are blocked on the input side of the grate 5, the second motor 17 drives the second lead screw 18 to rotate, causing the L-shaped plate 19 to move vertically up and down. This, in turn, causes several cleaning columns 20 to move vertically up and down within the flow opening of the grate 5, pushing the impurities upwards or downwards to the upper or lower side of the input side of the grate 5. Due to the water flow, the impurities are adsorbed on the input side of the grate 5, thus clearing the grate 5 and not affecting the water flow. The purpose of this design is to change the water flow speed within the mixing chamber 2 by adjusting the size of the flow opening of the grate 5, thereby improving the efficiency of paint sludge filtration and sedimentation. In addition, the grate 5 blocks larger impurities, and the vertical movement of the cleaning columns 20 on the input side ensures that the water flow is not affected.

[0023] Furthermore, such as Figure 2 As shown, the following preferred technical solutions are provided:

[0024] Guide rods 7 are symmetrically arranged at both ends of the output side of the partition 4. The upper and lower ends of the guide rods 7 are symmetrically fixed with first fixing plates 6. The sides of the first fixing plates 6 are fixed on the output side of the partition 4. The two ends of the baffle 8 are internally slidably connected to the outer side of the corresponding first fixing plates 6. The back of the baffle 8 is in contact with the output side of the fence 5 and slides. The purpose of this design is to ensure that the baffle 8 can be raised and lowered vertically and to change the size of the flow opening of the fence 5.

[0025] Furthermore, such as Figures 2-4 As shown, the following preferred technical solutions are provided:

[0026] A second fixing plate 10 is symmetrically fixed at the two edges of the upper end of the partition 4. The first motor 12 is fixedly installed on the side of the corresponding second fixing plate 10, and its output end extends and is fixedly connected to the end of the first lead screw 11. The outer side of the first lead screw 11 away from the first motor 12 is rotatably connected to the inside of the corresponding second fixing plate 10 through a bearing. The first lead screw 11 is threadedly connected to the slider 13. The bottom end of the slider 13 is slidably connected to the upper end of the partition 4. An L-shaped rod 14 is fixedly installed on the side of the slider 13. A connecting post 15 is fixedly installed on the side of the L-shaped rod 14 away from the slider 13. An inclined groove 9 is opened on the front end face of the baffle 8. The connecting post 15 is in contact with the inner surface of the inclined groove 9. The purpose of this design is that the first motor 12 drives the first lead screw 11 to rotate, which drives the slider 13 to reciprocate linearly in the horizontal direction, and then drives the connecting post 15 on the L-shaped rod 14 to move synchronously. Because the connecting post 15 is in contact with the inner surface of the inclined groove 9, it drives the baffle 8 to rise and fall vertically.

[0027] Furthermore, such as Figure 2 and Figure 3 As shown, the following preferred technical solutions are provided:

[0028] The size of the baffle 8 is matched with that of the fence 5. This design aims to ensure structural rationality.

[0029] Furthermore, such as Figure 3 As shown, the following preferred technical solutions are provided:

[0030] A rectangular groove 16 is provided on the side edge of the input side of the partition 4. The second motor 17 is fixedly installed on the top surface inside the rectangular groove 16. The output end of the second motor 17 is fixedly connected to the upper end of the second lead screw 18. The outer side of the bottom end of the second lead screw 18 is rotatably connected to the bottom end of the rectangular groove 16 through a bearing. The second lead screw 18 is internally threaded to the end of the L-shaped plate 19. The outer side of the end of the L-shaped plate 19 is slidably connected to the inner surface of the rectangular groove 16. The purpose of this design is that the second motor 17 drives the second lead screw 18 to rotate, thereby driving the L-shaped plate 19 to rise and fall vertically, and thus driving the cleaning column 20 to move synchronously.

[0031] Furthermore, such as Figure 2 and Figure 3 As shown, the following preferred technical solutions are provided:

[0032] There is a certain gap between the inner side of the L-shaped plate 19 and the input side of the fence 5. The cleaning column 20 is located inside the flow port of the fence 5. The cleaning column 20 corresponds to the flow port of the fence 5 one by one. The cleaning column 20 and the baffle 8 do not interfere with each other. The purpose of this design is to effectively move impurities by working together with the L-shaped plate 19 and the cleaning column 20 to ensure that the fence 5 is unobstructed.

[0033] In summary: Wastewater is pumped to mixing chamber 2 via a lift pump and pipeline. Chemicals are added via a dosing pump and pipeline. The agitator thoroughly mixes the chemicals with the wastewater, causing a large amount of flocculent material to gradually form in the water. Paint residue particles in the water are adsorbed into the flocculent material, achieving separation of sludge and water and clarifying the water quality. The water then flows through the screen 5 into the next mixing chamber 2, where chemicals are added and agitated again, and flocculation occurs once more. This process is repeated multiple times until complete flocculation. The water then flows into sedimentation tank 3 to begin settling. During this process, the flow rate can be adjusted by changing the size of the flow opening in screen 5. The first motor 12 drives the first lead screw 11 to rotate, causing the slider 13 to move horizontally. The reciprocating linear motion drives the baffle 8 to move vertically up and down, adjusting the size of the flow opening of the grate 5. This increases the water flow speed within the mixing chamber 2, thereby improving the efficiency of paint sludge filtration and sedimentation. The grate 5 can also block larger impurities. If impurities are blocked on the input side of the grate 5, the second motor 17 drives the second lead screw 18 to rotate, causing the L-shaped plate 19 to move vertically up and down. This, in turn, causes several cleaning columns 20 to move vertically up and down within the flow opening of the grate 5, pushing the impurities upwards or downwards to the upper or lower side of the input side of the grate 5. Due to the water flow, the impurities are adsorbed on the input side of the grate 5, thus clearing the grate 5 and not affecting the water flow. The purpose of this design is to change the water flow speed within the mixing chamber 2 by adjusting the size of the flow opening of the grate 5, thereby improving the efficiency of paint sludge filtration and sedimentation. In addition, the grate 5 blocks larger impurities, and the vertical movement of the cleaning columns 20 on the input side ensures that the water flow is not affected.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A paint sludge filtration and sedimentation device for treating paint spraying wastewater, comprising a main body (1), the main body (1) including a plurality of mixing chambers (2) and a sedimentation tank (3), wherein the plurality of mixing chambers (2) are separated by fixed partitions (4), characterized in that: The partition (4) has a matching fence (5) fitted and fixed inside its lower end. An L-shaped plate (19) is provided on the input side of the partition (4). Several uniformly distributed cleaning columns (20) are fixed horizontally on the inner side of the L-shaped plate (19). A second lead screw (18) is provided inside the end of the L-shaped plate (19). A second motor (17) is provided at the upper end of the second lead screw (18). A baffle (8) is provided on the output side of the partition (4). A slider (13) is provided at the upper end of the partition (4). A first lead screw (11) is provided inside the slider (13). A first motor (12) is provided at the end of the first lead screw (11). The slider (13) drives the baffle (8) to move vertically up and down by horizontal reciprocating linear motion.

2. The paint sludge filtration and sedimentation device for paint spraying wastewater treatment according to claim 1, characterized in that: The partition (4) has guide rods (7) symmetrically arranged at both ends of the output side. The guide rods (7) are fixed with first fixing plates (6) symmetrically fixed at the upper and lower ends. The side of the first fixing plate (6) is fixed on the side of the output side of the partition (4). The baffle (8) is internally slidably connected to the outside of the corresponding first fixing plate (6) at both ends. The back of the baffle (8) is in contact with the side of the output side of the fence (5) and slides.

3. The paint sludge filtration and sedimentation device for paint spraying wastewater treatment according to claim 1, characterized in that: The upper end of the partition (4) is symmetrically fixed with two second fixing plates (10). The first motor (12) is fixedly installed on the side of the corresponding second fixing plate (10) and its output end extends and is fixedly connected to the end of the first lead screw (11). The outer side of the first lead screw (11) away from the first motor (12) is rotatably connected to the inside of the corresponding second fixing plate (10) through a bearing. The first lead screw (11) is threadedly connected to the slider (13). The bottom end of the slider (13) is slidably connected to the upper end of the partition (4). The side of the slider (13) is fixed with an L-shaped rod (14). The side of the L-shaped rod (14) away from the slider (13) is fixed with a connecting post (15). The front end face of the baffle (8) is inclined with a groove (9). The connecting post (15) is in contact with the inner surface of the groove (9).

4. The paint sludge filtration and sedimentation device for paint spraying wastewater treatment according to claim 1, characterized in that: The baffle (8) is the same size as the fence (5).

5. The paint sludge filtration and sedimentation device for paint spraying wastewater treatment according to claim 1, characterized in that: A rectangular groove (16) is provided at the edge of the input side of the partition (4). The second motor (17) is fixedly installed on the top surface inside the rectangular groove (16). The output end of the second motor (17) is fixedly connected to the upper end of the second lead screw (18). The outer side of the bottom end of the second lead screw (18) is rotatably connected to the bottom end of the rectangular groove (16) through a bearing. The second lead screw (18) is internally threaded to the end of the L-shaped plate (19). The outer side of the end of the L-shaped plate (19) is slidably connected to the inner surface of the rectangular groove (16).

6. The paint sludge filtration and sedimentation device for paint spraying wastewater treatment according to claim 1, characterized in that: There is a certain gap between the inner side of the L-shaped plate (19) and the input side of the fence (5). The cleaning column (20) is located inside the flow port of the fence (5). The cleaning column (20) corresponds to the flow port of the fence (5) one by one. The cleaning column (20) and the baffle (8) do not interfere with each other.

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