Vertical solidification furnace exhaust gas purification device

Abstract

This utility model discloses a vertical curing furnace exhaust gas purification device, relating to the field of industrial exhaust gas technology. The technical solution includes a vertical curing furnace body, a purification chamber on one side of the furnace body, and an exhaust gas purification mechanism inside the purification chamber. The exhaust gas purification mechanism includes a retention box, which is fixedly located inside the purification chamber. Multiple air inlet hoods are fixedly installed at the bottom of the retention box, and conveying pipes are fixedly installed at the top of each air inlet hood. The conveying pipes penetrate the retention box and are fixedly connected to it. This utility model, by setting up an exhaust gas dispersion conveying structure composed of multiple air inlet hoods, conveying pipes, and discharge pipes, combined with an adjustable liquid level retention box structure, ensures that high-temperature VOCs exhaust gas is evenly distributed and forced through the absorbent liquid layer. This greatly increases the contact area and contact time between the exhaust gas and the absorbent, solving the problems of uneven exhaust gas distribution and insufficient contact in traditional methods, thereby significantly improving the VOCs removal efficiency.

Description

Technical Field

[0001] This utility model relates to the field of industrial waste gas treatment technology, specifically to a vertical curing furnace waste gas purification device. Background Technology

[0002] Vertical curing ovens are widely used in industries such as printing, coating, and electronic component manufacturing. They are characterized by a vertically arranged oven body, where workpieces move from top to bottom or bottom to top inside the oven to complete the curing process of coatings or inks. During this process, a large amount of high-temperature waste gas containing a large amount of VOCs is generated. If this waste gas is directly discharged, it will cause serious pollution to the environment.

[0003] The existing contact methods between waste gas and absorbent are unreasonable, mostly involving single-channel transport, resulting in uneven waste gas distribution and incomplete VOCs removal. Utility Model Content

[0004] Therefore, this utility model provides a vertical curing oven exhaust gas purification device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a vertical curing oven exhaust gas purification device, comprising a vertical curing oven body, a purification box provided on one side of the vertical curing oven body, and an exhaust gas purification mechanism provided inside the purification box; The exhaust gas purification mechanism includes a retention box, which is fixedly installed inside the purification chamber. Multiple air inlet hoods are fixedly installed at the bottom of the retention box, and each of the multiple air inlet hoods has a conveying pipe fixedly installed at its top. The conveying pipes pass through the retention box and are fixedly connected to it. A discharge pipe is fixedly installed at one end of each of the multiple conveying pipes. A drain box is installed on one side of the retention box, which passes through the retention box and is slidably connected to it. Two fixing rods are fixedly installed at the top of the drain box, and a slide rail is fixedly installed at one end of each of the two fixing rods. A second motor is fixedly installed on one side of the purification chamber, and a rotating shaft is fixedly connected to the output end of the second motor. A rotating plate is fixedly connected to one end of the rotating shaft, and a rotating column is connected to one side of the rotating plate via a bearing. The rotating column slides inside the slide rail.

[0006] Preferably, a first motor is fixedly installed on the top of the purification chamber, and a drive shaft is fixedly connected to the output end of the first motor. The drive shaft extends into the interior of the purification chamber and is connected to the retention box through a bearing. An agitator is fixedly sleeved on the outside of the drive shaft.

[0007] Preferably, an exhaust pipe is fixedly installed on the top of the purification chamber.

[0008] Preferably, a drain pipe is fixedly provided on one side of the purification chamber.

[0009] Preferably, an inlet pipe is fixedly provided on one side of the purification chamber.

[0010] Preferably, the bottom of the purification chamber is fixedly provided with multiple support columns.

[0011] Preferably, a waste discharge pipe is fixedly provided on one side of the vertical curing oven body, and the waste discharge pipe extends into the interior of the purification chamber and is fixedly connected to the connection point of the purification chamber.

[0012] Preferably, the waste discharge pipe passes through the retention box and is fixedly connected to the retention box.

[0013] Preferably, a partition is fixedly provided between the purification box and the retention box.

[0014] The present invention has the following beneficial effects: By setting up a waste gas dispersion conveying structure consisting of multiple air inlet hoods, conveying pipes and discharge pipes, and combining it with an adjustable liquid level retention box structure, high-temperature VOCs waste gas is evenly distributed and forced to pass through the absorbent liquid layer, which greatly increases the contact area and contact time between the waste gas and the absorbent, solves the problems of uneven waste gas distribution and insufficient contact in traditional methods, and thus significantly improves the VOCs removal efficiency. By setting up a stirring structure consisting of a first motor, a drive shaft, and stirring blades, the absorbent can be continuously stirred to prevent local saturation, maintain the activity and uniformity of the absorbent, and further improve the purification effect. At the same time, the liquid level adjustment mechanism consisting of a second motor, a rotating plate, a slide rail, and other components can dynamically control the liquid level of the absorbent in the retention box, ensuring that the outlet of the discharge pipe is always submerged below the liquid surface, adapting to different working conditions, and ensuring the stability and efficiency of the purification process. The entire device has a reasonable structural design, high purification efficiency, good automation, and strong practicality. Attached Figure Description

[0015] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0016] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0017] Figure 1 A schematic diagram of the overall structure of this utility model; Figure 2 This is a front sectional view of the purification chamber provided by this utility model; Figure 3 This is a side sectional view of the purification chamber provided by this utility model; Figure 4 A three-dimensional view of the exhaust gas purification mechanism provided by this utility model.

[0018] In the diagram: 1. Vertical curing oven body; 2. Purification chamber; 3. Waste discharge pipe; 4. Liquid discharge pipe; 5. Support column; 6. Liquid inlet pipe; 7. First motor; 8. Exhaust pipe; 9. Drive shaft; 10. Stirring blade; 11. Retention box; 12. Air inlet hood; 13. Conveying pipe; 14. Discharge pipe; 15. Second motor; 16. Slide rail; 17. Rotating shaft; 18. Fixing rod; 19. Liquid discharge box body; 20. Rotating plate; 21. Rotating column; 22. Partition plate. Detailed Implementation

[0019] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] See attached document Figure 1 -Appendix Figure 4 The present invention provides a vertical curing furnace exhaust gas purification device, including a vertical curing furnace body 1, a purification box 2 on one side of the vertical curing furnace body 1, and an exhaust gas purification mechanism inside the purification box 2. The exhaust gas purification mechanism includes a retention box 11, which is fixedly installed inside the purification chamber 2. Multiple air inlet hoods 12 are fixedly installed at the bottom of the retention box 11, and each air inlet hood 12 has a conveying pipe 13 fixedly installed at its top. The conveying pipe 13 passes through the retention box 11 and is fixedly connected to it. A discharge pipe 14 is fixedly installed at one end of each of the multiple conveying pipes 13. A drain box 19 is provided on one side of the retention box 11, which passes through the retention box 11 and is slidably connected to it. Two fixing rods 18 are fixedly installed at the top of the drain box 19. One end of the fixed rod 18 is fixedly provided with a slide rail 16, a second motor 15 is fixedly provided on one side of the purification chamber 2, a rotating shaft 17 is fixedly connected to the output end of the second motor 15, a rotating plate 20 is fixedly connected to one end of the rotating shaft 17, a rotating column 21 is connected to one side of the rotating plate 20 through a bearing, the rotating column 21 slides inside the slide rail 16, a waste discharge pipe 3 is fixedly provided on one side of the vertical curing oven body 1, the waste discharge pipe 3 extends into the interior of the purification chamber 2 and is fixedly connected to the connection point of the purification chamber 2, the waste discharge pipe 3 passes through the retention box 11 and is fixedly connected to the retention box 11; In this embodiment, after the exhaust gas enters the purification chamber 2, it is evenly captured by multiple air inlets 12. Through the dispersing effect of the air inlets 12, the exhaust gas is prevented from concentrating and impacting the absorbent liquid surface. Subsequently, the exhaust gas is transported to the discharge pipe 14 through the conveying pipe 13, and finally released into the absorbent from the outlet of the discharge pipe 14. The second motor 15 is started, and the second motor 15 drives the rotating shaft 17 to rotate. The rotating shaft 17 drives the rotating plate 20 to rotate synchronously. The rotating column 21 on one side of the rotating plate 20 makes a circular motion accordingly, and the rotating column 21 always slides inside the slide rail 16, thereby pushing the slide rail 16 to move up and down. The slide rail 16 drives the drain box 19 to slide inside the retention box 11 through the fixing rod 18, thereby adjusting the height of the drain box 19 and realizing precise control of the absorbent liquid level in the retention box 11. This ensures that the outlet of the discharge pipe 14 is always immersed in the absorbent, and the exhaust gas must completely pass through the absorbent liquid before it can be discharged upward, maximizing the contact time. To achieve the mixing purpose, the device adopts the following technical solution: A first motor 7 is fixedly installed on the top of the purification box 2. A transmission shaft 9 is fixedly connected to the output end of the first motor 7. The transmission shaft 9 extends into the interior of the purification box 2 and is connected to the retention box 11 through a bearing. An agitator 10 is fixedly sleeved on the outside of the transmission shaft 9. When the first motor 7 is started, the first motor 7 controls the transmission shaft 9 to rotate. The transmission shaft 9 drives the externally fixed agitator 10 to rotate in the absorbent. The agitation of the agitator 10 accelerates the flow of the absorbent, avoids the absorbent from reducing its adsorption capacity due to local VOCs saturation, and significantly improves the reaction efficiency between the waste gas and the absorbent. In order to achieve the purpose of exhaust, the device adopts the following technical solution: an exhaust pipe 8 is fixedly provided on the top of the purification box 2. The gas purified by the absorbent will flow upward and be discharged through the exhaust pipe 8 on the top of the purification box 2. In order to achieve the purpose of draining, the device adopts the following technical solution: a drain pipe 4 is fixedly provided on one side of the purification box 2. The absorbent will flow into the bottom of the purification box 2 through the drain box 19. Finally, the ineffective absorbent can be periodically discharged through the drain pipe 4 to realize the recycling of the absorbent. In order to achieve the purpose of liquid inlet, the device adopts the following technical solution: a liquid inlet pipe 6 is fixedly provided on one side of the purification chamber 2, and a special VOCs absorbent is injected into the purification chamber 2 through the liquid inlet pipe 6; To achieve the purpose of support, the device adopts the following technical solution: multiple support columns 5 are fixedly provided at the bottom of the purification box 2, and the support columns 5 have the function of supporting the purification box 2.

[0021] To achieve the separation, the device employs the following technical solution: a partition 22 is fixedly provided between the purification chamber 2 and the retention box 11. The partition 22 plays a crucial role in separating the retention box 11 from the bottom space of the purification chamber 2, thus preventing waste gas from escaping directly from the bottom without being absorbed and treated.

[0022] The usage process of this utility model is as follows: The VOCs waste gas generated during the workpiece curing process in the vertical curing oven body 1 is directly discharged into the purification chamber 2 through the waste discharge pipe 3; Subsequently, a special VOCs absorbent is injected into the purification chamber 2 through the inlet pipe 6. The absorbent flows into the retention box 11 along the inner wall of the purification chamber 2. The partition 22 plays a key role in separating the retention box 11 from the bottom space of the purification chamber 2, preventing the exhaust gas from directly escaping from the bottom without absorption treatment. The absorbent gradually accumulates in the retention box 11. When the liquid level rises to be level with the inlet of the drain box 19, the absorbent will flow into the bottom of the purification chamber 2 through the drain box 19. Finally, the ineffective absorbent can be periodically discharged through the drain pipe 4 to achieve the recycling of the absorbent. After the exhaust gas enters the purification chamber 2, it is evenly captured by multiple air intake hoods 12. Through the dispersing effect of the air intake hoods 12, the exhaust gas is prevented from concentrating and impacting the absorbent liquid surface. Then, the exhaust gas is transported to the discharge pipe 14 through the delivery pipe 13, and finally released into the absorbent from the outlet of the discharge pipe 14. The second motor 15 is started, and the second motor 15 drives the rotating shaft 17 to rotate. The rotating shaft 17 drives the rotating plate 20 to rotate synchronously. The rotating column 21 on one side of the rotating plate 20 makes a circular motion accordingly, and the rotating column 21 always slides inside the slide rail 16, thereby pushing the slide rail 16 to move up and down. The slide rail 16 drives the drain box 19 to slide in the retention box 11 through the fixed rod 18, thereby adjusting the height of the drain box 19 and realizing precise control of the absorbent liquid level in the retention box 11. This ensures that the outlet of the discharge pipe 14 is always immersed in the absorbent, and the exhaust gas must completely pass through the absorbent liquid before it can be discharged upward, maximizing the contact time. Simultaneously, the first motor 7 is started, which controls the transmission shaft 9 to rotate. The transmission shaft 9 drives the externally fixed stirring blade 10 to rotate in the absorbent. The stirring action of the stirring blade 10 accelerates the flow of the absorbent, avoids the local saturation of the absorbent due to VOCs and reduces its adsorption capacity, and significantly improves the reaction efficiency between the waste gas and the absorbent. The gas purified by the absorbent will flow upward and be discharged through the exhaust pipe 8 at the top of the purification box 2. The discharged gas meets the environmental protection emission requirements and effectively reduces pollution to the environment. Throughout the operation, the liquid level can be controlled by adjusting the speed of the second motor 15 according to the exhaust gas emission and VOC concentration, and the stirring intensity can be changed by adjusting the speed of the first motor 7, ensuring that the device can maintain a high-efficiency purification effect under different operating conditions.

[0023] The above description is merely a preferred embodiment of this utility model. Any person skilled in the art may modify this utility model or modify it into an equivalent technical solution using the technical solutions described above. Therefore, any simple modifications or equivalent substitutions made based on the technical solutions of this utility model are within the scope of protection claimed by this utility model.

Claims

1. A vertical curing oven exhaust gas purification device, comprising a vertical curing oven body (1), characterized in that: The vertical curing furnace body (1) is provided with a purification box (2) on one side, and the purification box (2) is provided with a waste gas purification mechanism. The exhaust gas purification mechanism includes a stagnation box (11), which is fixedly installed inside the purification chamber (2). Multiple air inlet hoods (12) are fixedly installed at the bottom of the stagnation box (11), and each of the multiple air inlet hoods (12) has a fixed conveying pipe (13) at its top. The conveying pipe (13) passes through the stagnation box (11) and is fixedly connected to it. A discharge pipe (14) is fixedly installed at one end of each of the multiple conveying pipes (13). A drain box (19) is provided on one side of the stagnation box (11), and the drain box (19) passes through the stagnation box (11). 11) and slidably connected to the retention box (11), the top of the drain box (19) is fixedly provided with two fixed rods (18), one end of the two fixed rods (18) is fixedly provided with a slide rail (16), the side of the purification box (2) is fixedly provided with a second motor (15), the output end of the second motor (15) is fixedly connected with a rotating shaft (17), one end of the rotating shaft (17) is fixedly connected with a rotating plate (20), one side of the rotating plate (20) is connected with a rotating column (21) through a bearing, and the rotating column (21) slides inside the slide rail (16).

2. The exhaust gas purification device for a vertical curing oven according to claim 1, characterized in that: The top of the purification chamber (2) is fixedly equipped with a first motor (7), and the output end of the first motor (7) is fixedly connected to a transmission shaft (9). The transmission shaft (9) extends into the interior of the purification chamber (2) and is connected to the stagnation box (11) through a bearing. The outside of the transmission shaft (9) is fixedly fitted with a stirring blade (10).

3. The exhaust gas purification device for a vertical curing oven according to claim 1, characterized in that: An exhaust pipe (8) is fixedly installed on the top of the purification box (2).

4. The exhaust gas purification device for a vertical curing oven according to claim 1, characterized in that: A drain pipe (4) is fixedly installed on one side of the purification box (2).

5. The exhaust gas purification device for a vertical curing oven according to claim 1, characterized in that: The purification chamber (2) is fixedly equipped with an inlet pipe (6) on one side.

6. The exhaust gas purification device for a vertical curing oven according to claim 1, characterized in that: The bottom of the purification box (2) is fixed with multiple support columns (5).

7. The exhaust gas purification device for a vertical curing oven according to claim 1, characterized in that: The vertical curing oven body (1) is fixedly provided with a waste discharge pipe (3) on one side. The waste discharge pipe (3) extends into the purification box (2) and is fixedly connected to the purification box (2) at the connection point.

8. The exhaust gas purification device for a vertical curing oven according to claim 7, characterized in that: The waste discharge pipe (3) passes through the retention box (11) and is fixedly connected to the retention box (11).

9. The exhaust gas purification device for a vertical curing oven according to claim 1, characterized in that: A partition (22) is fixedly provided between the purification box (2) and the retention box (11).

Images