Grading treatment device for waste gas purification of aluminum veneer spraying line

Abstract

The utility model discloses a stage treatment device for waste gas purification of an aluminum veneer spraying line. The stage treatment device comprises a treatment tower, and an activated carbon adsorption layer, a drying layer, a demisting layer, a spraying mechanism, a filter screen and a cleaning mechanism are sequentially arranged in the treatment tower from top to bottom; a gas inlet is formed in one side of the treatment tower; a gas outlet is formed in the top of the The cleaning mechanism comprises a high-pressure spray pipe, a supporting shaft, a first electric push rod, a second electric push rod, a fixing plate, a brushing plate and a first water pump. The activated carbon adsorption layer comprises a supporting frame, an activated carbon plate, a second supporting plate, a first wedge-shaped block, a connecting shaft, a second wedge-shaped block, a fixing arm and a sealing plate; the spraying mechanism comprises a spraying pipe, a second water pipe and a second water pump. According to the spraying waste gas treatment device, spraying waste gas can be effectively pretreated through spraying, demisting, drying and adsorption in sequence, then blockages on the filter screen can be effectively cleaned through the cleaning mechanism, and the cleanliness of circulating water is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of spray waste gas treatment, and particularly relates to a hierarchical treatment device for waste gas purification of an aluminum single-board spraying line. Background Technique

[0002] Considering the durability of building products, aluminum single boards need to be painted on a spraying line. Most of them use fluorocarbon liquid paint. The above-mentioned varieties of paint need to be cured by high-temperature baking. The liquid paint contains more than 30% toxic and harmful organic solvents, and the main components are organic solvents such as toluene, xylene, ketones, and esters. Therefore, the waste gas generated by spraying needs to be effectively treated before it can be discharged.

[0003] After retrieval, there is a waste gas treatment device for an aluminum single-board spraying line with the publication number of CN221536214U in the prior art. In this solution, there is a cleaning mechanism for cleaning the filter screen. The cleaning mechanism includes an outer box fixedly installed on the outer wall of the tower body and a booster pump. An electric push rod is fixedly installed inside the outer box. The filter screen is cleaned by supplying water with the booster pump in cooperation with the cleaning mechanism.

[0004] In this solution, since the high-pressure nozzle connected to the booster pump is located above the filter screen, under the impact of high-pressure water, the blockage will be directly washed into the circulating water below the filter screen, and the debris will enter the circulating state and be used for spraying along with the water flow, which not only fails to achieve the cleaning effect, but also reduces the spray dust removal effect on the waste gas.

[0005] After retrieval, there is a paint mist pretreatment device applied to aluminum single-board spraying with the publication number of CN220345384U in the prior art, including a spray cabinet box body. An exhaust gas inlet is opened at the top of one end of the spray cabinet box body, and an exhaust gas outlet is opened at the top of the other end. A first sewage discharge port is provided at the bottom of one end of the spray cabinet box body, and a second sewage discharge port is provided at the bottom of the other end. Both the first sewage discharge port and the second sewage discharge port are communicated with the inside of the spray cabinet box body. It also includes: a circulating water tank, a spraying mechanism, and a demisting mechanism.

[0006] Although the spray water of this device uses the water in the circulating water tank for recycling, after long-term use, more impurities will accumulate in the circulating water. Over time, the impurities will block the nozzles, greatly reducing the spray effect on the waste gas. It can be seen that both of the above two prior arts have deficiencies in dealing with impurities in the circulating spray water. Summary of the Invention

[0007] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a hierarchical treatment device for waste gas purification of an aluminum single-board spraying line, which can effectively pre-treat the spraying waste gas through spraying, demisting, drying, and adsorption in sequence, and then can also effectively clean and remove the blockage of the filter screen through the cleaning mechanism to ensure the cleanliness of the circulating water.

[0008] To achieve the above object, the technical solution adopted by the utility model is as follows:

[0009] A hierarchical treatment device for waste gas purification of an aluminum single board spraying line, comprising a treatment tower. Inside the treatment tower, an activated carbon adsorption layer, a drying layer, a demisting layer, a spraying mechanism, a filter screen, and a cleaning mechanism are successively arranged from top to bottom; an air inlet is arranged on one side of the treatment tower, and an air outlet is arranged at the top of the treatment tower. Waste gas enters the treatment tower from the air inlet, and then is sprayed by the spraying mechanism to reduce dust. Then, the steam-water mixture passes through the demisting layer and the drying layer, and then passes through the activated carbon adsorption layer to adsorb organic substances in the waste gas, and then is discharged through the air outlet. The filter screen filters the spraying water, and then the cleaning mechanism cleans the filter screen to ensure the normal operation of the filtering function.

[0010] The side wall of the treatment tower is provided with a first slide rail and a second slide rail, and a partition board is arranged at the bottom of the treatment tower. The two sides of the partition board are respectively set as a cleaning bin and a clean water bin; a guide plate is arranged on the inner wall of the treatment tower to guide the spraying water; a cleaning port is arranged at the bottom of the treatment tower and corresponds to the cleaning bin; a replacement port and a buckle are arranged on one side of the treatment tower, and the buckle is located on both sides of the replacement port.

[0011] The filter screen is fixedly connected to the top of the partition board and the side wall of the treatment tower.

[0012] The cleaning mechanism includes a high-pressure spray pipe, a support shaft, a first electric push rod, a second electric push rod, a fixing plate, a brush sweeping plate, and a first water pump; the support shaft is fixedly connected to the partition board and the inner wall of the treatment tower, and a support plate is arranged on the high-pressure spray pipe, and the support plate is slidably connected to the support shaft; a first water pipe is arranged on the high-pressure spray pipe, and the first water pipe is connected to the first water pump, and the first water pump is arranged in the clean water bin; the first electric push rod and the second electric push rod are fixed on the outer wall of the treatment tower, and the top shaft of the first electric push rod passes through the side wall of the treatment tower and is fixedly connected to the high-pressure spray pipe; guide plates are arranged at both ends of the fixing plate and are arranged in the second slide rail, and the top shaft of the second electric push rod passes through the side wall of the treatment tower and is fixedly connected to the fixing plate; a guide shaft is arranged on the brush sweeping plate and is slidably connected to the fixing plate; a third spring is sleeved on the guide shaft; a brush sweeping strip is arranged on the brush sweeping plate; an arc-shaped baffle is arranged on the fixing plate.

[0013] The activated carbon adsorption layer includes a support frame, an activated carbon plate, a second support plate, a first wedge block, a connecting shaft, a second wedge block, a fixed arm, and a sealing plate; the activated carbon plate is fixed on the support frame, the sealing plate is fixed on one side of the support frame and fits the size of the replacement opening, and the support frame is inserted into the treatment tower along the first slide rail at the replacement opening; there are two groups of second support plates which are respectively arranged at both ends of the sealing plate and fixedly connected, each group of second support plates has two pieces and the second support plates are fixedly connected by a connecting plate; the first wedge block is slidably connected to the second support plate, one end of the first wedge block is provided with a limiting shaft and is slidably connected to the second support plate, a first spring is sleeved on the limiting shaft, and a first through groove is provided on the first wedge block; a fixedly connected connecting shaft is arranged between the two groups of second support plates, the second wedge block is inserted into the connecting plate, the second wedge block is arranged on one side of the first through groove, a fixed shaft is provided on the second wedge block, a fixed arm is arranged between the fixed shafts, and a second spring is sleeved on the fixed shaft.

[0014] The spraying mechanism includes a spray pipe, a second water pipe, and a second water pump; the second water pump is arranged in the clean water tank, the spray pipe is fixedly connected to the inner wall of the treatment tower, and the second water pipe connects the second water pump and the spray pipe.

[0015] The beneficial effects of the present utility model compared with the prior art are as follows:

[0016] 1) In this solution, a cleaning mechanism for cleaning the filter screen is provided, and a high-pressure spray pipe and a brushing plate are respectively arranged on both sides of the filter screen; first, the first water pump supplies water to the high-pressure spray pipe to backflush the filter screen and wash out the blockages from the filter screen holes, then the first electric push rod pushes the high-pressure spray pipe to slide along the support shaft, and then the second electric push rod pushes the fixing plate to drive the brushing plate to move along the second slide rail to brush the sundries washed out by the high-pressure spray pipe on the surface of the filter screen; the high-pressure spray pipe is in front and the brushing plate is behind. In this way, the water flow flushed out of the filter screen by the high-pressure spray pipe can be blocked by the arc-shaped baffle to prevent the water flow from carrying the blocked impurities and impacting other parts of the treatment tower, affecting the cleaning; the blocked impurities are cleaned into the cleaning bin and then processed through the cleaning port; further, the third spring can push the brushing plate and the brushing strips to closely fit the filter screen to ensure the cleaning effect;

[0017] At the same time, compared with the structure where the high-pressure spray pipe is arranged above, arranging the high-pressure spray pipe below can wash out the blockages of the filter screen, avoiding the drawback that when the high-pressure spray pipe is arranged above and impacts downward, the blocked sundries will be impacted into the clean water tank. Description of the Drawings

[0018] Att Figure 1 is a schematic structural diagram of a hierarchical treatment device for waste gas purification in an aluminum single-board spraying line of the present utility model;

[0019] Att Figure 2 is a schematic diagram of the internal structure of the treatment tower;

[0020] Att Figure 3It is the first structural schematic diagram of the cleaning mechanism;

[0021] Attached Figure 4 It is the second structural schematic diagram of the cleaning mechanism;

[0022] Attached Figure 5 It is the structural schematic diagram of the activated carbon adsorption layer;

[0023] Attached Figure 6 It is attached Figure 5 The enlarged schematic diagram of the local structure in

[0024] In the figure: 1. Treatment tower; 11. Air inlet; 12. Air outlet; 13. Cleaning port; 14. Replacement port; 15. Buckle; 16. First slide rail; 17. Second slide rail; 18. Deflector; 19. Partition; 101. Cleaning bin; 102. Clear water bin;

[0025] 2. Cleaning mechanism; 21. High-pressure spray pipe; 211. Support plate; 212. First water pipe; 22. Support shaft; 23. First electric push rod; 24. Second electric push rod; 25. Fixed plate; 251. Guide plate; 252. Arc-shaped baffle; 26. Brush sweeping plate; 261. Brush sweeping strip; 27. Guide shaft; 28. Third spring; 29. First water pump;

[0026] 3. Spraying mechanism; 31. Spraying pipe; 32. Second water pipe; 33. Second water pump; 4. Demisting layer; 5. Drying layer;

[0027] 6. Activated carbon adsorption layer; 61. Support frame; 62. Activated carbon plate; 63. Second support plate; 631. Connecting plate; 64. First wedge block; 641. First through groove; 642. Limit shaft; 643. First spring; 65. Connecting shaft; 66. Second wedge block; 661. Fixed shaft; 662. Second spring; 67. Fixed arm; 68. Sealing plate; 7. Filter screen. Detailed implementation manners

[0028] For the convenience of understanding by those skilled in the art, the technical solutions of the present utility model will be further specifically described below in conjunction with the attached Figures 1-6 , and will be further specifically described below.

[0029] A hierarchical treatment device for waste gas purification of an aluminum veneer spraying line, comprising a treatment tower 1. Inside the treatment tower 1, there are successively arranged an activated carbon adsorption layer 6, a drying layer 5, a demisting layer 4, a spraying mechanism 3, a filter screen 7, and a cleaning mechanism 2 from top to bottom; there is an air inlet 11 on one side of the treatment tower 1, and an air outlet 12 at the top of the treatment tower 1. The waste gas enters the treatment tower 1 from the air inlet 11, and then is sprayed by the spraying mechanism 3 to reduce dust. Then, the steam-water mixture passes through the demisting layer 4 and the drying layer 5, and then passes through the activated carbon adsorption layer 6 to adsorb the organic matter in the waste gas, and then is discharged through the air outlet 12. The filter screen 7 filters the spraying water, and then the cleaning mechanism 2 cleans the filter screen 7 to ensure the normal operation of the filtering function; the demisting layer can use a baffle demister in the existing technology to achieve the demisting effect. Secondly, the drying layer is provided with granular desiccant filled therein to achieve the drying effect.

[0030] On the side wall of the treatment tower 1, there are a first slide rail 16 and a second slide rail 17. At the bottom of the treatment tower 1, there is a partition plate 19. The two sides of the partition plate 19 are respectively set as a cleaning bin 101 and a clear water bin 102; on the inner wall of the treatment tower 1, there is a guide plate 18 for guiding the spraying water; at the bottom of the treatment tower 1, there is a cleaning port 13 corresponding to the cleaning bin 101; on one side of the treatment tower 1, there are a replacement port 14 and a buckle 15, and the buckle 15 is located on both sides of the replacement port 14.

[0031] The filter screen 7 is fixedly connected to the top of the partition plate 19 and the side wall of the treatment tower 1.

[0032] The cleaning mechanism 2 includes a high-pressure spray pipe 21, a support shaft 22, a first electric push rod 23, a second electric push rod 24, a fixing plate 25, a brush sweeping plate 26, and a first water pump 29; the support shaft 22 is fixedly connected to the partition plate 19 and the inner wall of the treatment tower 1. On the high-pressure spray pipe 21, there is a support plate 211, and the support plate 211 is slidably connected to the support shaft 22; on the high-pressure spray pipe 21, there is a first water pipe 212, and the first water pipe 212 is connected to the first water pump 29, and the first water pump 29 is arranged in the clear water bin 102; the first electric push rod 23 and the second electric push rod 24 are fixed on the outer wall of the treatment tower 1. The top shaft of the first electric push rod 23 passes through the side wall of the treatment tower 1 and is fixedly connected to the high-pressure spray pipe 21; both ends of the fixing plate 25 are provided with guide plates 251 and are arranged in the second slide rail 17. The top shaft of the second electric push rod 24 passes through the side wall of the treatment tower 1 and is fixedly connected to the fixing plate 25; on the brush sweeping plate 26, there is a guide shaft 27 and is slidably connected to the fixing plate 25; a third spring 28 is sleeved on the guide shaft 27; on the brush sweeping plate 26, there are brush sweeping strips 261; on the fixing plate 25, there is an arc-shaped baffle 252.

[0033] The activated carbon adsorption layer 6 includes a support frame 61, an activated carbon plate 62, a second support plate 63, a first wedge block 64, a connecting shaft 65, a second wedge block 66, a fixed arm 67, and a sealing plate 68. The activated carbon plate 62 is fixed on the support frame 61, and the sealing plate 68 is fixed on one side of the support frame 61 and fits the size of the replacement opening 14. The support frame 61 inserts the first slide rail 16 along the replacement opening 14 into the treatment tower 1. There are two groups of second support plates 63, which are respectively arranged at both ends of the sealing plate 68 and fixedly connected. Each group of second support plates 63 has two pieces, and the second support plates 63 are fixedly connected by a connecting plate 631. The first wedge block 64 is slidably connected to the second support plate 63. One end of the first wedge block 64 is provided with a limiting shaft 642 and is slidably connected to the second support plate 63. A first spring 643 is sleeved on the limiting shaft 642. The first wedge block 64 is provided with a first through groove 641. A fixedly connected connecting shaft 65 is arranged between the two groups of second support plates 63. The second wedge block 66 is inserted into the connecting plate 631. The second wedge block 66 is arranged on one side of the first through groove 641. The second wedge block 66 is provided with a fixed shaft 661. A fixed arm 67 is arranged between the fixed shafts 661. A second spring 662 is sleeved on the fixed shaft 661.

[0034] The spraying mechanism 3 includes a spray pipe 31, a second water pipe 32, and a second water pump 33. The second water pump 33 is arranged in the clean water tank 102. The spray pipe 31 is fixedly connected to the inner wall of the treatment tower 1. The second water pipe 32 connects the second water pump 33 and the spray pipe 31.

[0035] A hierarchical treatment device for waste gas purification in an aluminum single - panel spraying line works as follows:

[0036] The waste gas enters the treatment tower 1 from the air inlet 11, and then undergoes dust reduction by spraying through the spraying mechanism 3. Then, the steam - water mixture passes through the demisting layer 4 and the drying layer 5, and then passes through the activated carbon adsorption layer 6 to adsorb the organic matter in the waste gas, and then is discharged through the air outlet 12. The filter net 7 filters the waste water, and then the cleaning mechanism 2 cleans the filter net to ensure the normal operation of the filtering function.

[0037] When the cleaning mechanism 2 cleans the filter net 7, first, the first water pump 29 supplies water to the high - pressure spray pipe 21. The high - pressure spray pipe 21 flushes the filter net 7 in reverse to wash out the blockages from the filter net holes. Then, the first electric push rod 23 pushes the high - pressure spray pipe 21 to slide along the support shaft 22. Subsequently, the second electric push rod 24 pushes the fixing plate 25 to drive the brush - sweeping plate 26 to move along the second slide rail 17 to brush the debris washed out of the filter net 7 surface by the high - pressure spray pipe 21. The high - pressure spray pipe 21 is in the front, and the brush - sweeping plate 26 is in the back. The water flow flushing out of the filter net by the high - pressure spray pipe 21 is blocked by the arc - shaped baffle 252 to prevent the water flow mixed with the blocked impurities from impacting other parts of the treatment tower 1 and affecting the cleaning. The blocked impurities are cleaned into the cleaning bin 101 and then are processed through the cleaning opening 13.

[0038] After the activated carbon adsorption layer 6 has been working for a long time, the activated carbon plate 62 needs to be replaced to ensure the adsorption effect. First, press the fixed arm 67 so that the second wedge block 66 enters the first through groove 641. During this process, the wedge surface of the second wedge block 66 abuts against the side wall of the first through groove 641. As the second wedge block 66 advances, the first wedge block 64 is pressed by the wedge surface to slide backward, causing the first wedge block 64 to withdraw from the locked state of the buckle 15. Then, pull out the connecting shaft 65 to pull the support frame 61 out of the treatment tower 1, and then replace the activated carbon plate 62 on the support frame 61. At this time, the second wedge block 66 is pushed out of the first through groove 641 by the second spring 662 and disengages from the first wedge block 64, and the first wedge block 64 is pushed out by the first spring 643. After replacement, push the support frame 61 into the first slide rail 16 and the replacement port 14. At this time, the wedge surface of the first wedge block 64 pushes the side of the buckle 15. Continuing to push, the first wedge block 64 passes over the buckle 15 and enters the through hole of the buckle 15 under the push of the first spring 643 to achieve automatic locking, and the sealing plate 68 closes the replacement port 14 at the same time, completing the replacement and application of the activated carbon plate 62. In the above application solution, during the process of replacing the activated carbon plate 62, it is easy to operate and can complete the replacement quickly.

[0039] In the description of the present invention, unless otherwise specified, the meaning of "a plurality of" is two or more; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0040] In summary, including but not limited to electronic or electrical components such as electric push rods and motors are components in the prior art, obtained through private customization or purchase, and the electrical connections between the components are all conventional circuit connections or electrical connections in the prior art, which are not within the protection scope of the present invention;

[0041] The above content is only an example and description of the structure of the present invention. Those skilled in the art of this technology make various modifications or supplements to the specific embodiments described or use similar methods to replace them. As long as they do not deviate from the structure of the present invention or exceed the scope defined by this claim book, they should all fall within the protection scope of the present invention.

Claims

1. A graded treatment device for purifying exhaust gas from an aluminum plate spraying line, comprising a treatment tower, characterized in that The inside of the treatment tower is equipped with an activated carbon adsorption layer, a drying layer, a demisting layer, a spray mechanism, a filter screen, and a cleaning mechanism from top to bottom; an air inlet is provided on one side of the treatment tower, and an air outlet is provided on the top of the treatment tower; The cleaning mechanism includes a high-pressure nozzle, a support shaft, a first electric push rod, a second electric push rod, a fixed plate, a brush plate, and a first water pump; the support shaft is fixedly connected to the partition and the inner wall of the treatment tower, and a support plate is provided on the high-pressure nozzle, and the support plate is slidably connected to the support shaft; a first water pipe is provided on the high-pressure nozzle, and the first water pipe is connected to the first water pump, and the first water pump is arranged in the clean water bin; the first electric push rod and the second electric push rod are fixed to the outer wall of the treatment tower, and the top shaft of the first electric push rod passes through the side wall of the treatment tower and is fixedly connected to the high-pressure nozzle; guide plates are provided at both ends of the fixed plate and are arranged in the second slide rail, and the top shaft of the second electric push rod passes through the side wall of the treatment tower and is fixedly connected to the fixed plate; a guide shaft is provided on the brush plate and is slidably connected to the fixed plate; a third spring is sleeved on the guide shaft; a brush strip is provided on the brush plate; and an arc-shaped baffle is provided on the fixed plate; The activated carbon adsorption layer includes a support frame, an activated carbon plate, a second support plate, a first wedge block, a connecting shaft, a second wedge block, a fixed arm, and a sealing plate; the activated carbon plate is fixed on the support frame, the sealing plate is fixed on one side of the support frame and fits the size of the replacement port, and the support frame is plugged into the first slide rail along the replacement port to enter the treatment tower; the second support plate is provided with two groups and is respectively arranged at both ends of the sealing plate and fixedly connected, each group of second support plates is provided with two pieces and the second support plates are fixedly connected by a connecting plate; the first wedge block is slidably connected to the second support plate, one end of the first wedge block is provided with a limiting shaft and is slidably connected to the second support plate, the limiting shaft is sleeved with a first spring, and the first wedge block is provided with a first through groove; a fixedly connected connecting shaft is provided between the two groups of second support plates, the second wedge block is plugged into the connecting plate, the second wedge block is arranged on one side of the first through groove, a fixed shaft is provided on the second wedge block, a fixed arm is provided between the fixed shafts, and a second spring is sleeved on the fixed shaft.

2. The grading treatment device for purifying exhaust gas from an aluminum veneer spraying line according to claim 1 is characterized in that The spray mechanism comprises a spray pipe, a second water pipe and a second water pump; the second water pump is arranged in the clean water bin, the spray pipe is fixedly connected to the inner wall of the treatment tower, and the second water pipe connects the second water pump and the spray pipe.

3. The grading treatment device for purifying exhaust gas from an aluminum veneer spraying line according to claim 1 is characterized in that The side wall of the treatment tower is provided with a first slide rail and a second slide rail, the bottom of the treatment tower is provided with a partition, and the two sides of the partition are respectively provided with a cleaning bin and a clean water bin; a guide plate is provided on the inner wall of the treatment tower for guiding the spray water; a cleaning port is provided at the bottom of the treatment tower and corresponds to the cleaning bin; a replacement port and a buckle are provided on one side of the treatment tower, and the buckle is located on both sides of the replacement port.

4. The grading treatment device for purifying exhaust gas from an aluminum veneer spraying line according to claim 1 is characterized in that The filter screen is fixedly connected to the top of the partition plate and the side wall of the processing tower.

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