A tail gas treatment device for a gum removal furnace

Abstract

This utility model relates to the field of sintering furnaces, and more particularly to a tail gas treatment device for a glue removal furnace. It includes a furnace body, which is connected to a silicon carbide box via a first connecting pipe. A silicon carbide heating tube is installed inside the silicon carbide box. The air inlet of the silicon carbide heating tube is connected to the first connecting pipe, and its air outlet is connected to an exhaust fan. The exhaust fan is fixed to the top of the silicon carbide box. This utility model utilizes the silicon carbide heating tube, which can reach higher temperatures than ordinary materials. This allows organic matter heated or burned at high temperatures by the silicon carbide heating tube to be decomposed or burned more completely and thoroughly. The silicon carbide box also provides excellent insulation and protection.

Description

Technical Field

[0001] This utility model relates to the field of sintering furnaces, and in particular to a tail gas treatment device for a glue removal furnace. Background Technology

[0002] During operation, glue removal furnaces generate a large amount of exhaust gas containing numerous carcinogenic organic compounds and dust. Direct emission without treatment would cause serious environmental pollution and harm human health. Therefore, the exhaust gas generated during operation must be treated before being released. Current technologies typically introduce the exhaust gas into a combustion chamber for combustion, burning the harmful organic compounds into water and carbon dioxide before emission. For example, patent application number CN202120586314.X discloses an exhaust gas treatment device for ceramic substrate glue removal furnaces, which uses a combustion chamber to burn the organic compounds in the exhaust gas. However, ordinary combustion chambers often fail to achieve complete and thorough combustion of organic compounds. Therefore, there is an urgent need for an exhaust gas treatment device capable of achieving complete and thorough combustion of the exhaust gas. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a tail gas treatment device for a glue degassing furnace, which solves the problems existing in the prior art. This utility model can heat the tail gas generated during the operation of the glue degassing furnace to a higher temperature by setting up a silicon carbide box and silicon carbide heating tube, so that the tail gas is cracked and burned more completely and thoroughly, thereby improving the efficiency and effect of tail gas treatment.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, the present invention provides the following technical solution: a tail gas treatment device for a glue removal furnace, comprising a furnace body, the furnace body being connected to a silicon carbide box via a first connecting pipe, a silicon carbide heating tube being provided inside the silicon carbide box, the air inlet end of the silicon carbide heating tube being connected to the first connecting pipe, and the air outlet end being connected to an exhaust fan, the exhaust fan being fixed to the top of the silicon carbide box.

[0007] Preferably, the exhaust fan's outlet is connected to one end of a second connecting pipe, and the other end of the second connecting pipe is connected to a filter box. The filter box is equipped with an exhaust pipe, and the filter box is fixed to the top of the silicon carbide box by several support columns.

[0008] Preferably, the silicon carbide heating tube is configured as a curved and meandering type, which consists of several vertical sections, a lower curved section connecting the lower ends of adjacent vertical sections, and an upper curved section connecting the upper ends of adjacent vertical sections. The top end of the upper curved section is close to the inner top wall of the silicon carbide box, and the bottom end of the lower curved section is close to the inner bottom wall of the silicon carbide box. The air inlet end of the silicon carbide heating tube is fixed to the right end of the top plate of the silicon carbide box, and its air outlet end is fixed to the left end of the top plate of the silicon carbide box.

[0009] Preferably, the vertical section includes an upper vertical section, a lower vertical section, and a mixing section connecting the upper vertical section and the lower vertical section. The mixing section includes several hollow spherical sections and a connecting section connecting two adjacent hollow spherical sections. The inner diameter of the connecting section is smaller than the inner diameter of the upper vertical section.

[0010] Preferably, a first converging pipe is provided between the first connecting pipe and the air inlet end of the silicon carbide heating pipe, and a second converging pipe is provided between the air outlet end of the silicon carbide heating pipe and the exhaust fan. Several silicon carbide heating pipes are arranged from front to back between the first converging pipe and the second converging pipe.

[0011] Preferably, the first collection pipe is fixed on the right side of the inner top wall of the silicon carbide box, and the second collection pipe is fixed on the left side of the inner top wall of the silicon carbide box.

[0012] Preferably, the outer wall of the silicon carbide heating tube is wrapped with a layer of graphite felt.

[0013] Preferably, the silicon carbide heating tube includes a silicon carbide tube, on which several heating electrodes are fixed, and the heating electrodes penetrate through the silicon carbide box and are fixedly connected to the silicon carbide box.

[0014] (III) Beneficial Effects

[0015] 1. This utility model, through the setting of silicon carbide heating tubes, can heat to higher temperatures than ordinary materials. This allows organic matter heated or burned at high temperatures by silicon carbide heating tubes to be decomposed or burned more completely and thoroughly. The silicon carbide box provides both excellent heat preservation and protection.

[0016] 2. This utility model filters the exhaust gas after it has been pyrolyzed and burned by the silicon carbide heating tube by setting up a filter box, so that the pollution of the environment caused by the exhaust gas is reduced to a minimum or zero. The filter box is set on the top of the silicon carbide box, which reduces the footprint of the entire exhaust gas treatment device and saves space. On the other hand, it also makes the second connecting pipe as short as possible, which greatly facilitates the exhaust gas to enter the filter box and to be discharged from the exhaust pipe.

[0017] 3. This utility model sets the silicon carbide heating tube in a curved and meandering shape, with the top of the upper curved section close to the inner top wall of the silicon carbide box and the bottom of the lower curved section close to the inner bottom wall of the silicon carbide box. The air inlet of the silicon carbide heating tube is fixed to the right end of the top plate of the silicon carbide box, and its air outlet is fixed to the left end of the top plate of the silicon carbide box. This arrangement maximizes the vertical and horizontal span of the silicon carbide heating tube in the silicon carbide box, thereby allowing the exhaust gas to pass through the silicon carbide heating tube for as long as possible, so that the organic matter in the exhaust gas can be decomposed or burned more completely.

[0018] 4. This utility model greatly improves the mixing of exhaust gas by setting a mixing section on the vertical section, thereby improving the uniformity and comprehensiveness of exhaust gas cracking or combustion in the silicon carbide heating tube.

[0019] 5. This utility model greatly improves the efficiency of exhaust gas treatment by setting up a first collection pipe and a second collection pipe, and by arranging several silicon carbide heating tubes from front to back between the first collection pipe and the second collection pipe. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall design of this utility model.

[0021] Figure 2 This utility model Figure 1 A schematic diagram including the second connecting pipe, filter box, and air outlet pipe.

[0022] Figure 3 This is a schematic diagram of the silicon carbide heating tube of this utility model.

[0023] Figure 4 This utility model Figure 4 A schematic diagram with the mixing section added.

[0024] Figure 5 This is a schematic diagram of the mixing section of this utility model.

[0025] Figure 6 This is a schematic diagram of the silicon carbide heating tube, the first collection tube, and the second collection tube of this utility model.

[0026] Figure 7 This is a schematic diagram of the silicon carbide box, silicon carbide tube, and heating electrode of this utility model.

[0027] In the diagram: 1-furnace body, 2-first connecting pipe, 3-silicon carbide box, 4-silicon carbide heating tube, 5-exhaust fan, 6-air outlet, 7-second connecting pipe, 8-filter box, 9-air outlet pipe, 10-support column, 15-vertical section, 16-lower curved section, 17-upper curved section, 18-upper vertical section, 19-lower vertical section, 20-mixing section, 21-hollow spherical section, 22-connecting section, 23-first collection pipe, 24-second collection pipe, 25-silicon carbide tube, 26-heating electrode. Detailed Implementation

[0028] The following will refer to the appendix in the embodiments of this utility model. Figure 1-7 The technical solutions in the embodiments of this utility model are clearly and completely described. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0029] This utility model provides a technical solution: a tail gas treatment device for a glue removal furnace, including a furnace body 1. The furnace body 1 is connected to a silicon carbide box 3 through a first connecting pipe 2. A silicon carbide heating tube 4 is installed inside the silicon carbide box 3. The air inlet of the silicon carbide heating tube 4 is connected to the first connecting pipe 2, and its air outlet is connected to an exhaust fan 5, which is fixed to the top of the silicon carbide box 3. During operation, the tail gas generated by the furnace body 1 is drawn into the silicon carbide heating tube 4 through the exhaust fan 5. The tail gas is heated at high temperature by the silicon carbide heating tube 4. The silicon carbide heating tube 4 can perform high-temperature decomposition or combustion of the organic matter in the tail gas. When combustion of the organic matter in the tail gas is required, air or oxygen needs to be introduced into it. Since the silicon carbide heating tube 4 can heat to a higher temperature than ordinary materials, the organic matter after being heated or burned by the silicon carbide heating tube 4 can be decomposed or burned more completely and thoroughly. The tail gas treated by the silicon carbide heating tube 4 is discharged through the exhaust fan 5. The silicon carbide heating tube 4 is placed inside the silicon carbide box 3, which provides excellent heat preservation and protection.

[0030] The exhaust outlet 6 of the exhaust fan 5 is connected to one end of a second connecting pipe 7, and the other end of the second connecting pipe 7 is connected to a filter box 8. The filter box 8 is equipped with an exhaust pipe 9 and is fixed to the top of the silicon carbide box 3 by several support columns 10. The filter box 8 filters the exhaust gas after it has passed through the silicon carbide heating tube 4 for pyrolysis and combustion, minimizing or eliminating environmental pollution from the exhaust gas emissions. Placing the filter box 8 on top of the silicon carbide box 3 reduces the footprint of the entire exhaust gas treatment device, saving space, and also allows the second connecting pipe 7 to be as short as possible, thus greatly facilitating the entry of exhaust gas into the filter box 8 and its discharge from the exhaust pipe 9.

[0031] The silicon carbide heating tube 4 is configured as a curved and meandering type, consisting of several vertical sections 15, a lower curved section 16 connecting the lower ends of adjacent vertical sections 15, and an upper curved section 17 connecting the upper ends of adjacent vertical sections 15. The top of the upper curved section 17 is close to the inner top wall of the silicon carbide box 3, and the bottom of the lower curved section 16 is close to the inner bottom wall of the silicon carbide box 3. The air inlet of the silicon carbide heating tube 4 is fixed to the right end of the top plate of the silicon carbide box 3, and its air outlet is fixed to the left end of the top plate of the silicon carbide box 3. Through the above configuration, the vertical and horizontal span of the silicon carbide heating tube 4 within the silicon carbide box 3 is maximized, thereby maximizing the time that the exhaust gas spends passing through the silicon carbide heating tube 4, thus allowing the organic matter in the exhaust gas to be decomposed or burned more completely.

[0032] The vertical section 15 includes an upper vertical section 18, a lower vertical section 19, and a mixing section 20 connecting the upper vertical section 18 and the lower vertical section 19. The mixing section 20 includes several hollow spherical sections 21 and connecting sections 22 connecting adjacent hollow spherical sections 21. The inner diameter of the connecting section 22 is smaller than the inner diameter of the upper vertical section 18. Both the hollow spherical sections 21 and the connecting section 22 are made of silicon carbide. The mixing section 20 significantly improves the mixing of the exhaust gas, thereby enhancing the uniformity and comprehensiveness of exhaust gas cracking or combustion within the silicon carbide heating tube 4.

[0033] A first converging pipe 23 is provided between the first connecting pipe 2 and the air inlet end of the silicon carbide heating pipe 4, and a second converging pipe 24 is provided between the air outlet end of the silicon carbide heating pipe 4 and the exhaust fan 5. Several silicon carbide heating pipes 4 are arranged from front to back between the first converging pipe 23 and the second converging pipe 24. The arrangement of multiple silicon carbide heating pipes 4 greatly improves the efficiency of exhaust gas treatment.

[0034] The first collection pipe 23 is fixed to the right side of the inner top wall of the silicon carbide box 3, and the second collection pipe 24 is fixed to the left side of the inner top wall of the silicon carbide box 3. Both the first collection pipe 23 and the second collection pipe 24 are made of silicon carbide. This arrangement not only maximizes the lateral span of the silicon carbide heating tube 4, but also improves the heat preservation effect of the silicon carbide heating tube 4 by placing the first collection pipe 23 and the second collection pipe 24 inside the silicon carbide box 3, thus reducing heat loss to the outside to a certain extent.

[0035] The outer wall of the silicon carbide heating tube 4 is wrapped with a layer of graphite soft felt, which further enhances the heat preservation effect of the silicon carbide heating tube 4.

[0036] The silicon carbide heating tube 4 includes a silicon carbide tube 25, on which a plurality of heating electrodes 26 are fixed. The heating electrodes 26 penetrate through the silicon carbide box 3 and are fixedly connected to the silicon carbide box 3. The heating of the silicon carbide tube 25 is achieved through the heating electrodes 26.

[0037] Working Principle: During operation, the exhaust gas generated by the furnace body 1 is drawn into the silicon carbide heating tube 4 by the exhaust fan 5. The silicon carbide heating tube 4 heats the exhaust gas at high temperature, enabling it to either decompose or burn the organic matter in the exhaust gas. When combustion is required, air or oxygen needs to be introduced. Because the silicon carbide heating tube 4 can reach higher temperatures than ordinary materials, the organic matter heated or burned by the silicon carbide heating tube 4 is decomposed or burned more completely and thoroughly. The exhaust gas treated by the silicon carbide heating tube 4 is then discharged by the exhaust fan 5. The silicon carbide heating tube 4 is placed inside the silicon carbide box 3, which provides both excellent insulation and protection.

[0038] 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 tail gas treatment device for a glue discharge furnace, characterized in that, The furnace body (1) is connected to a silicon carbide box (3) via a first connecting pipe (2). The silicon carbide box (3) is equipped with a silicon carbide heating tube (4). The air inlet of the silicon carbide heating tube (4) is connected to the first connecting pipe (2), and its air outlet is connected to an exhaust fan (5). The exhaust fan (5) is fixed on the top of the silicon carbide box (3).

2. The exhaust gas treatment device for a glue discharge furnace according to claim 1, characterized in that, The exhaust port (6) of the exhaust fan (5) is connected to one end of the second connecting pipe (7), and the other end of the second connecting pipe (7) is connected to the filter box (8). The filter box (8) is provided with an exhaust pipe (9), and the filter box (8) is fixed to the top of the silicon carbide box (3) by several support columns (10).

3. The exhaust gas treatment device for a glue discharge furnace according to claim 1, characterized in that, The silicon carbide heating tube (4) is configured as a curved and meandering type, which consists of several vertical sections (15), a lower curved section (16) connecting the lower end of the adjacent vertical section (15), and an upper curved section (17) connecting the upper end of the adjacent vertical section (15). The top end of the upper curved section (17) is close to the inner top wall of the silicon carbide box (3), and the bottom end of the lower curved section (16) is close to the inner bottom wall of the silicon carbide box (3). The air inlet end of the silicon carbide heating tube (4) is fixed to the right end of the top plate of the silicon carbide box (3), and its air outlet end is fixed to the left end of the top plate of the silicon carbide box (3).

4. The exhaust gas treatment device for a glue discharge furnace according to claim 3, characterized in that, The vertical section (15) includes an upper vertical section (18), a lower vertical section (19), and a mixing section (20) connecting the upper vertical section (18) and the lower vertical section (19). The mixing section (20) includes a plurality of hollow spherical sections (21) and a connecting section (22) connecting two adjacent hollow spherical sections (21). The inner diameter of the connecting section (22) is smaller than the inner diameter of the upper vertical section (18).

5. The exhaust gas treatment device for a glue discharge furnace according to claim 1, characterized in that, A first converging pipe (23) is provided between the first connecting pipe (2) and the air inlet end of the silicon carbide heating pipe (4), and a second converging pipe (24) is provided between the air outlet end of the silicon carbide heating pipe (4) and the exhaust fan (5). Several silicon carbide heating pipes (4) are provided from front to back between the first converging pipe (23) and the second converging pipe (24).

6. The exhaust gas treatment device for a glue discharging furnace according to claim 5, characterized in that, The first collection tube (23) is fixed on the right side of the inner top wall of the silicon carbide box (3), and the second collection tube (24) is fixed on the left side of the inner top wall of the silicon carbide box (3).

7. The exhaust gas treatment device for a glue removal furnace according to claim 1, characterized in that, The outer wall of the silicon carbide heating tube (4) is wrapped with a layer of graphite felt.

8. The exhaust gas treatment device for a glue discharging furnace according to claim 1, characterized in that, The silicon carbide heating tube (4) includes a silicon carbide tube (25), and a plurality of heating electrodes (26) are fixed on the silicon carbide tube (25). The heating electrodes (26) penetrate the silicon carbide box (3) and are fixedly connected to the silicon carbide box (3).

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