Exhaust gas purification system for a heat-shrinking furnace

Abstract

The utility model discloses a waste gas purification system of heat shrinkage furnace relates to waste gas purification technical field, aims at solving current purification equipment adopts a variety of equipment division of labor processing, occupies the space is big, and the technical problem of maintenance and production cost improvement, including top cap, shell, side cover and seal cover, the both ends downside of shell all are equipped with production line erection mouth, the front and back end surface upside of shell all are equipped with operating mouth, the middle department of top cap upper end surface is equipped with gas collecting pipe, top cap bottom is installed with the purification box, and the both sides of purification box all are equipped with side groove, install the fixed baffle in side groove, and seal cover plug -in installation is in side groove opening, and seal cover corresponds operating mouth, the inside of seal cover alternately distributes and has the inclined plane board, and the side groove is separated with baffle by the inclined plane board and separates out the airflow cavity. The utility model has the advantage that the special airflow channel completes the cooling and particle exclusion, is convenient for subsequent direct activated carbon adsorption purification, and reduces the use cost.

Description

Technical Field

[0001] This utility model relates to the field of waste gas purification technology, and more specifically, to a waste gas purification system for a heat shrink furnace. Background Technology

[0002] Heat shrink ovens primarily generate heat through heating elements, with common heating methods including hot air heating and infrared heating. When a product with a heat shrink sleeve (film) is placed inside the oven, the heat transferred through hot air or infrared radiation causes the heat shrink material to reach above its glass transition temperature. The polymer chains then begin to move, causing the material to shrink and adhere tightly to the outer surface of the product, thus providing multiple functions such as protection, labeling, and insulation.

[0003] During the operation of a heat shrink oven, the heating of the heat shrink sleeve may generate VOCs, particulate matter, and other harmful gases. Existing devices typically purify these gases through various processing steps, which requires significant factory space and necessitates additional equipment for each process, increasing production and maintenance costs. Therefore, we propose a waste gas purification system for heat shrink ovens. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a waste gas purification system for heat shrink furnaces to solve the technical problems of current purification equipment using multiple equipment for multi-process processing, occupying a large space, and increasing maintenance and production costs.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a waste gas purification system for a heat shrink furnace, including a top cover, an outer shell, side covers, and a sealing cover. The lower sides of both ends of the outer shell are provided with production line mounting openings, and the upper sides of both the front and rear ends of the outer shell are provided with operation openings. A gas collecting pipe is provided in the middle of the upper end face of the top cover. A purification box is installed at the bottom of the top cover, and side grooves are provided on both sides of the purification box. A partition is installed and fixed within the side groove. The sealing cover is inserted into the opening of the side groove and corresponds to the operation opening. Inclined plates are alternately distributed on the inner side of the sealing cover. The side groove is separated from the partition by the inclined plates to create an airflow cavity. The side cover is fixed to the outer side of the sealing cover by bolts.

[0006] In use, the outer casing of this device is installed at the exhaust port of the production line. Waste gas from the heat shrink furnace production enters the casing, and is collected by a negative pressure fan connected to the gas collection pipe. The waste gas then enters the purification chamber through the inlet pipe in the side trough, where it is adsorbed and purified by activated carbon. The activated carbon adsorption removes VOCs from the waste gas. This structural design allows for a suspended installation, reducing space occupancy within the factory. Furthermore, by mounting the device on the production line, it directly recovers waste gas from the heat shrink furnace, minimizing pipeline congestion and preventing reduced recovery quality due to particulate impurities clogging the pipelines. The cap is plugged into the side trough, and the inclined plates divide the channels between the partitions, forming a meandering, inclined airflow cavity. When the airflow attraction reaches a specified standard, directional air pressure is generated, and particulate impurities in the waste gas are removed by the inclined, meandering airflow cavity. When the airflow moves rapidly within the return airflow chamber, the centrifugal force generated at the angle of the flow creates a meandering flow. This force throws particulate impurities from the exhaust gas onto the particle box, where they are adhered to by the felt plate and removed. Simultaneously, the meandering flow chamber increases the length of the exhaust gas flow, ensuring full contact with the inclined plate. Both the inclined plate and the cover are made of copper, facilitating rapid heat absorption. An external fan at the operating port rapidly reduces the heat of the high-temperature exhaust gas through air cooling, preventing any impact on the activated carbon adsorption process for VOCs removal. This structural design creates a unique exhaust gas flow channel, generating centrifugal separation while simultaneously achieving heat exchange. This prevents excessively high exhaust gas temperatures and internal particulate impurities from affecting the subsequent activated carbon adsorption quality. This equipment can complete adsorption, impurity removal, and cooling without requiring multiple processing steps, making it highly practical.

[0007] Preferably, an air inlet pipe is installed at the middle of the top of the side groove, and the air inlet pipe is located at the end of the airflow cavity channel, and the position of the air inlet pipe is adapted to the slope plate.

[0008] Preferably, the partition is provided in two sets, and the two sets of partitions are located in two side grooves respectively. Each set of partitions consists of three horizontal plates, and the three horizontal plates are distributed in a triangular shape. The horizontal plates are provided with upper and lower insertion ports respectively.

[0009] Preferably, the cover has an insertion port, and the insertion port is offset from the ramp plate.

[0010] Preferably, the inner side of the side cover is arrayed with granule boxes, and a felt board is fixed inside the granule box. The cross-section of the granule box is triangular, and the granule box is in contact with the slope plate on the corresponding side.

[0011] Preferably, the pellet box is located at a meandering angle within the airflow cavity, and the felt plate inside the pellet box corresponds to the inclined surface of the upper ramp plate. The pellet box is inserted and installed in the insertion port.

[0012] Preferably, the cover, ramp, and partition are all made of copper, and the width of the ramp and partition is adapted to the depth of the side groove.

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

[0014] 1. This utility model, through the design of the top cover, has its outer shell installed at the exhaust port of the production line. The waste gas generated during the heat shrink furnace production enters the outer shell and is collected by starting a negative pressure fan connected to the gas collection pipe. The waste gas then enters the purification chamber through the air inlet pipe in the side groove, where it is adsorbed and purified by activated carbon. The activated carbon adsorption process removes VOCs from the waste gas. Through the above structural design, the entire device can be installed in a suspended manner, reducing the space occupied in the factory. At the same time, this device is mounted on the production line to directly recover the waste gas from the heat shrink furnace production, reducing pipeline guidance and preventing the reduction in recovery quality caused by particulate impurities clogging the pipeline.

[0015] 2. This utility model also incorporates a cap design. The cap is plugged into the side groove, and the inclined plate separates the channels between the partitions, forming a meandering and inclined airflow cavity. When the airflow attraction reaches a specified standard, it generates directional air pressure. When particulate impurities in the exhaust gas flow rapidly within the inclined and meandering airflow cavity, centrifugal force is generated at the angle of the meandering airflow, causing the particulate impurities in the exhaust gas to be thrown onto the particle box. The particulate impurities are then adhered to by the felt plate inside the particle box, thus removing them. Simultaneously, the meandering airflow cavity increases the exhaust gas flow length, fully... The device is in contact with the ramp plate, both of which are made of copper, enabling rapid heat absorption. An external fan is installed at the operating port to quickly reduce the heat of the high-temperature exhaust gas through air cooling, preventing any impact on the activated carbon adsorption process for VOCs removal. Through the above structural design, the device forms a special exhaust gas flow channel, generating centrifugal separation while also achieving heat exchange. This prevents excessively high exhaust gas temperature and internal particulate impurities from affecting the subsequent activated carbon adsorption quality. This equipment can complete adsorption, impurity removal, and cooling without the need for multiple processing steps, making it highly practical. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the top cover structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the outer shell structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the side groove structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the sealing structure of this utility model;

[0021] Figure 6 This is a schematic diagram of the combined structure of this utility model;

[0022] Figure 7 This is a schematic diagram of the airflow cavity of this utility model;

[0023] Figure 8 This is a schematic diagram of the side cover structure of this utility model.

[0024] The following are the labels in the diagram: 1. Top cover; 101. Gas collection pipe; 102. Purification box; 103. Air inlet pipe; 104. Side groove; 2. Outer shell; 201. Production line mounting port; 202. Operation port; 3. Side cover; 301. Granule box; 302. Felt board; 4. Sealing cover; 401. Sloping plate; 402. Insertion port; 5. Partition; 501. Upper insertion port; 502. Lower insertion port; 6. Airflow cavity. Detailed Implementation

[0025] like Figures 1 to 6 As shown, this utility model relates to a waste gas purification system for a heat shrink furnace, including a top cover 1, an outer shell 2, side covers 3, and a sealing cover 4. Both ends of the outer shell 2 have production line mounting openings 201 on their lower sides, and both the front and rear ends of the outer shell 2 have operation openings 202 on their upper sides. A gas collecting pipe 101 is located in the middle of the upper surface of the top cover 1. A purification box 102 is installed at the bottom of the top cover 1, and side grooves 104 are provided on both sides of the purification box 102. A partition 5 is fixedly installed in the side groove 104. An air inlet pipe 103 is installed in the middle of the top of the side groove 104, and the air inlet pipe 103 is located at the end of the airflow cavity 6 channel. The air inlet pipe 103 is matched with the position of the inclined plate 401. Two sets of partitions 5 are provided, and the two sets of partitions 5 are located in the two side grooves 104 respectively. Each set of partitions 5 consists of three horizontal plates, and the three horizontal plates are distributed in a triangular pattern. The horizontal plates correspond to... The device has an upper insertion port 501 and a lower insertion port 502. The cover 4 has an insertion port 402, which is staggered from the ramp plate 401. The outer shell 2 of the device is installed at the exhaust port of the production line. The exhaust gas caused by the heat shrink furnace production enters the inner shell 2. The exhaust gas is collected by starting the negative pressure fan connected to the gas collection pipe 101. The exhaust gas enters the purification box 102 through the air inlet pipe 103 in the side groove 104. The activated carbon in the purification box 102 is used for adsorption and purification. The VOCs in the exhaust gas are adsorbed and purified by the activated carbon. Through the above structural design, the device is installed in a suspended manner, which reduces the space occupied in the factory. At the same time, the device is erected on the production line to directly recover the exhaust gas from the heat shrink furnace production, reduce pipeline guidance, and prevent the recovery quality from being reduced due to the blockage of the pipeline by particulate impurities.

[0026] like Figures 3 to 8 As shown, this utility model relates to a waste gas purification system for a heat shrink furnace, including a top cover 1, an outer shell 2, a side cover 3, and a sealing cover 4. The sealing cover 4 is inserted and installed at the opening of the side groove 104, and the sealing cover 4 corresponds to the operation port 202. Inclined plates 401 are alternately distributed on the inner side of the sealing cover 4. The side groove 104 is separated from the partition plate 5 by the inclined plates 401 to form an airflow cavity 6. The side cover 3 is fixed to the outer side of the sealing cover 4 by bolts. Granule boxes 301 are arranged in an array on the inner side of the side cover 3, and a felt board 302 is fixed inside the granule box 301. The cross-section of the granule box 301 is as follows: The design is triangular, with the pellet box 301 fitting snugly against the corresponding ramp plate 401. The pellet box 301 is located at the meandering angle within the airflow cavity 6, and the felt plate 302 inside the pellet box 301 corresponds to the inclined surface of the upper ramp plate 401. The pellet box 301 is inserted into the insertion port 402. The cover 4, ramp plate 401, and partition 5 are all made of copper. The width of the ramp plate 401 and partition 5 is adapted to the depth of the side groove 104. The cover 4 is inserted into the side groove 104. The ramp plate 401 separates the channels between the partitions 5, forming... The meandering, inclined airflow cavity 6 generates directional air pressure when the airflow attraction reaches a specified standard. As particulate impurities in the exhaust gas flow rapidly within this cavity, centrifugal force is generated at the angle of the meandering flow, causing them to be thrown onto the particle box 301. The felt plate 302 inside the particle box 301 adheres to the particles, effectively removing them. Simultaneously, the meandering airflow cavity 6 increases the exhaust gas flow length, ensuring full contact with the inclined plate 401. The inclined plate 401 and the cover 4... All components are made of copper, enabling rapid heat absorption. An external fan is installed at the operating port 202 to quickly reduce the heat of the high-temperature exhaust gas through air cooling, preventing any impact on the activated carbon adsorption process for VOCs removal. Through the above structural design, this device forms a special exhaust gas flow channel, generating centrifugal separation while also achieving heat exchange. This prevents excessively high exhaust gas temperature and internal particulate impurities from affecting the subsequent activated carbon adsorption quality. This equipment can complete adsorption, impurity removal, and cooling without the need for multiple processing steps, making it highly practical.

[0027] Working Principle: This embodiment provides a waste gas purification system for a heat shrink furnace. During use, the outer casing 2 is installed at the exhaust port of the production line. Waste gas generated during heat shrink furnace production enters the casing 2. The waste gas is collected by activating a negative pressure fan connected to the gas collection pipe 101. The waste gas then enters the purification chamber 102 through the inlet pipe 103 within the side trough 104. The activated carbon inside the purification chamber 102 performs adsorption purification, adsorbing and purifying the VOCs in the waste gas. The cover 4 is plugged into the side trough 104. A ramp 401 separates the channels between the partitions 5, forming a meandering, inclined airflow cavity 6. When the airflow attraction reaches a specified standard, it generates… The directional airflow pressure causes particulate impurities in the exhaust gas to flow rapidly within the inclined and meandering airflow cavity 6. When the airflow meanders at the angle, the rapid flow generates centrifugal force, causing the particulate impurities to be thrown onto the particle box 301. The particulate impurities are then adhered to by the felt plate 302 inside the particle box 301, thus removing them. At the same time, the meandering airflow cavity 6 increases the length of the exhaust gas flow, ensuring full contact with the inclined plate 401. Both the inclined plate 401 and the cover 4 are made of copper, which allows for rapid heat absorption. An external fan is installed at the operating port 202 to quickly reduce the heat of the high-temperature exhaust gas through air cooling, preventing any impact on the activated carbon adsorption process for VOCs removal.

[0028] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A waste gas purification system for a heat shrink oven, comprising a top cover (1), an outer shell (2), a side cover (3), and a sealing cover (4), characterized in that: The outer shell (2) has production line mounting ports (201) on both lower sides. The front and rear end faces of the outer shell (2) have operation ports (202) on the upper side. The top cover (1) has an air collection pipe (101) in the middle of the upper end face. The bottom of the top cover (1) is equipped with a purification box (102), and the purification box (102) has side grooves (104) on both sides. The side grooves (104) are equipped with fixed partitions (5). The cover (4) is inserted into the opening of the side groove (104) and corresponds to the operation port (202). The inner side of the cover (4) has alternating slope plates (401). The side grooves (104) are separated from the partitions (5) by the slope plates (401) to form an airflow cavity (6). The side cover (3) is fixed to the outside of the cover (4) by bolts.

2. The exhaust gas purification system for a heat shrink furnace according to claim 1, characterized in that: An air inlet pipe (103) is installed at the middle of the top of the side groove (104), and the air inlet pipe (103) is located at the end of the airflow cavity (6) channel. The air inlet pipe (103) is adapted to the position of the ramp plate (401).

3. The exhaust gas purification system for a heat shrink furnace according to claim 2, characterized in that: The partition (5) is provided in two sets, and the two sets of partitions (5) are located in two side grooves (104) respectively. Each set of partitions (5) consists of three horizontal plates, and the three horizontal plates are distributed in a triangular shape. The upper insertion port (501) and the lower insertion port (502) are correspondingly opened on the horizontal plates.

4. The exhaust gas purification system for a heat shrink furnace according to claim 3, characterized in that: The cover (4) has an insertion port (402) and the insertion port (402) is misaligned with the ramp plate (401).

5. The exhaust gas purification system for a heat shrink furnace according to claim 4, characterized in that: The inner side of the side cover (3) is arrayed with granule boxes (301), and a felt board (302) is fixed inside the granule box (301). The cross-section of the granule box (301) is triangular, and the granule box (301) is attached to the slope plate (401) on the corresponding side.

6. The exhaust gas purification system for a heat shrink furnace according to claim 5, characterized in that: The pellet box (301) is located at the meandering angle inside the airflow cavity (6), and the felt plate (302) inside the pellet box (301) corresponds to the inclined surface of the upper inclined plate (401). The pellet box (301) is inserted and installed in the insertion port (402).

7. The exhaust gas purification system for a heat shrink furnace according to claim 6, characterized in that: The cover (4), ramp (401) and partition (5) are all made of copper, and the width of the ramp (401) and partition (5) is adapted to the depth of the side groove (104).

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