High-temperature flue gas treatment device after pyrolysis of low-concentration gas

Abstract

The utility model discloses a high-temperature flue gas treatment device after low-concentration gas pyrolysis in the technical field of high-temperature flue gas treatment, which comprises a shell, a partition plate fixedly mounted in an inner cavity of the shell, an automatic door device arranged at the front end of the partition plate, an activated carbon filter plate arranged in the middle of the shell, and a fixed plate fixedly mounted on the upper wall of the activated carbon filter plate. A locking mechanism is fixedly mounted on the outer wall of the shell and comprises a fixing block, a rack and a second-stage gear, the rack is slidably mounted in an inner cavity of the fixing block, a first connecting block is fixedly mounted on the upper wall of the rack, a connecting ring is mounted at the upper end of the first connecting block, the second-stage gear is mounted on the side of the rack, and a second connecting block is fixedly mounted on the upper wall of the second-stage gear. By means of the activated carbon filter plate, high-temperature flue gas flowing through the activated carbon filter plate can be filtered, sulfur dioxide in the high-temperature flue gas can be adsorbed, and by means of the locking mechanism and the fixing plate, the activated carbon filter plate can be rapidly replaced.

Description

Technical Field

[0001] This utility model relates to the field of high-temperature flue gas treatment technology, specifically a high-temperature flue gas treatment device after the pyrolysis of low-concentration methane gas. Background Technology

[0002] Methane, also known as biogas or natural gas, is mainly composed of methane. Its chemical symbol is CH4. It is a colorless, odorless, tasteless, flammable, and explosive gas that is widely used in daily life for boiling water, cooking, and lighting.

[0003] Gas pyrolysis typically refers to the chemical decomposition of gas (mainly methane) under high-temperature conditions. This process may produce a series of reactions, including the cracking and reforming of methane, generating products such as hydrogen, carbon monoxide, carbon dioxide, nitrogen dioxide, and sulfur dioxide.

[0004] Gas is formed from the decomposition of cellulose and organic matter by anaerobic bacteria during the early stages of coal formation from ancient plants. With societal development, ultra-low concentration gas is often maintained using high-temperature flue gas treatment devices after oxidation and pyrolysis. However, existing high-temperature flue gas treatment devices cannot handle the small amount of sulfur dioxide produced during pyrolysis. Sulfur dioxide leaks can harm human health and pollute the environment. Therefore, a high-temperature flue gas treatment device that can filter sulfur dioxide and whose filter plates can be quickly replaced during operation is needed.

[0005] Based on this, this utility model designs a high-temperature flue gas treatment device after the pyrolysis of low-concentration methane gas to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a high-temperature flue gas treatment device after the pyrolysis of low-concentration methane gas, in order to solve the problem mentioned in the background art that the existing high-temperature flue gas treatment devices cannot handle the small amount of sulfur dioxide in the pyrolysis, and that sulfur dioxide leakage will cause harm to the human body and pollute the environment.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a high-temperature flue gas treatment device after pyrolysis of low-concentration methane gas, comprising a shell, a partition fixedly installed in the inner cavity of the shell, an automatic door device provided at the front end of the partition, an activated carbon filter plate provided in the middle of the shell, a fixing plate fixedly installed on the upper wall of the activated carbon filter plate, and a locking mechanism fixedly installed on the outer wall of the shell, the locking mechanism comprising a fixing block, a rack and a secondary gear, a rack slidably installed in the inner cavity of the fixing block, a first connecting block fixedly installed on the upper wall of the rack, a connecting ring installed at the upper end of the first connecting block, a secondary gear installed on the side of the rack, a second connecting block fixedly installed on the upper wall of the secondary gear, and a handle fixedly installed on the side wall of the second connecting block.

[0008] Preferably, the automatic door device includes a drive motor and an isolation door. The drive motor is fixedly installed on the outer wall of the housing, and a protective cover is provided around the drive motor. A first bevel gear is fixedly installed at the output end of the drive motor. A second bevel gear is provided below the first bevel gear, and the first bevel gear meshes with the second bevel gear. A first bearing is fixedly installed on the lower wall of the second bevel gear. A fixing sleeve is fixedly installed on the outer wall of the first bearing. The fixing sleeve is fixedly installed on the lower wall of the isolation door. A sealing limit ring is provided above the isolation door, and the sealing limit ring is fixedly installed on the inner wall of the housing.

[0009] Preferably, a tension spring is fixedly installed inside the cavity of the secondary gear, and a rotating disk is fixedly connected to the lower wall of the tension spring. The rotating disk is rotatably installed on the lower wall of the cavity of the fixed block. A gear groove is opened on the lower wall of the cavity of the fixed block, and the gear groove cooperates with the secondary gear. A hook is provided on the outer wall of the fixed plate, and the hook cooperates with the connecting ring.

[0010] Preferably, the outer wall of the outer shell is provided with a third connecting block, the upper end of the third connecting block is provided with a second bearing, the outer wall of the second bearing is fitted with a fixing plate, the front end of the fixing plate is provided with a locking hole, the outer wall of the outer shell is provided with a locking block, and the locking hole cooperates with the locking block.

[0011] Preferably, the automatic door device is provided in two sets, and the two sets of automatic door devices are respectively installed on both sides of the partition.

[0012] Preferably, two sets of locking mechanisms and activated carbon filter plates are symmetrically arranged, and a handle is fixedly installed on the upper wall of the fixing plate.

[0013] Preferably, the rack sidewall is provided with a limiting rod, and the inner cavity sidewall of the fixing block is provided with a limiting hole, and the limiting rod and the limiting hole cooperate with each other.

[0014] Preferably, the outer shell is divided into three layers, with a heat insulation layer in the middle.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] I. This utility model uses an activated carbon filter plate to filter high-temperature flue gas flowing through it, adsorbing sulfur dioxide. The activated carbon filter plate can be quickly replaced using a locking mechanism and a fixing plate.

[0017] II. This utility model can divide the high-temperature flue gas after pyrolysis into two channels by setting a baffle. The high-temperature flue gas is controlled by an automatic door device to enter only one of the channels. When it is necessary to replace the activated carbon filter plate, the channel to be replaced is closed to prevent the flow of high-temperature flue gas. Then the filter plate is replaced, so that the filter plate replacement can be completed without stopping the operation. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the main view structure of this utility model;

[0020] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0021] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0022] Figure 4 This is a top-down structural diagram of the present invention;

[0023] Figure 5 This is a schematic cross-sectional view of the locking mechanism of this utility model;

[0024] Figure 6 This utility model Figure 4 A magnified structural diagram of A in the middle;

[0025] Figure 7 This is a schematic diagram of the structure of this utility model from a cross-sectional perspective;

[0026] Figure 8 This utility model Figure 7 A magnified structural diagram of B in the diagram.

[0027] The attached diagram lists the components represented by each number as follows:

[0028] 1-Outer shell, 2-Isolation door, 3-Drive motor, 4-Fixing plate, 5-Handle, 6-Partition plate, 7-Fixing sleeve, 8-Bearing No. 1, 9-Bevel gear No. 1, 10-Bevel gear No. 2, 11-Protective cover, 12-Hook, 13-Connecting ring, 14-Connecting block No. 1, 15-Rack, 16-Fixing block, 17-Connecting block No. 2, 18-Secondary gear, 19-Rotating disc, 20-Tension spring, 21-Fixing plate, 22-Bearing No. 2, 23-Connecting block No. 3, 24-Locking block, 25-Locking hole, 26-Handle, 27-Sealing limit ring, 28-Limiting rod, 29-Limiting hole, 30-Activated carbon filter plate. Detailed Implementation

[0029] The following will refer to the appendix in the embodiments of this utility model. Figure 1-8 The technical solutions in the embodiments of this utility model are clearly and completely described herein. 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 skilled in the art without creative effort are within the protection scope of this utility model.

[0030] See appendix Figure 1 Appendix Figure 4 and attached Figure 5 This utility model provides a technical solution: a high-temperature flue gas treatment device after pyrolysis of low-concentration methane gas, including a shell 1, a partition 6 fixedly installed in the inner cavity of the shell 1, an automatic door device at the front end of the partition 6, an activated carbon filter plate 30 in the middle of the shell 1, a fixing plate 4 fixedly installed on the upper wall of the activated carbon filter plate 30, and a locking mechanism fixedly installed on the outer wall of the shell 1. The locking mechanism includes a fixing block 16, a rack 15 and a secondary gear 18. The rack 15 is slidably installed in the inner cavity of the fixing block 16. A first connecting block 14 is fixedly installed on the upper wall of the rack 15. A connecting ring 13 is installed on the upper end of the first connecting block 14. A secondary gear 18 is installed on the side of the rack 15. A second connecting block 17 is fixedly installed on the upper wall of the secondary gear 18. A handle 26 is fixedly installed on the side wall of the second connecting block 17. Through the locking mechanism, the activated carbon filter plate 30 can be quickly replaced and fixed, so that its filtration effect will not decrease due to the long-term lack of replacement of the activated carbon filter plate 30.

[0031] See appendix Figure 1 Appendix Figure 2 and attached Figure 3The automatic door device includes a drive motor 3 and an isolation door 2. The drive motor 3 is fixedly installed on the outer wall of the housing 1. A protective cover 11 is provided around the drive motor 3. A first bevel gear 9 is fixedly installed at the output end of the drive motor 3. A second bevel gear 10 is provided below the first bevel gear 9. The first bevel gear 9 and the second bevel gear 10 mesh with each other. A first bearing 8 is fixedly installed on the lower wall of the second bevel gear 10. A fixing sleeve 7 is fixedly installed on the outer wall of the first bearing 8. The fixing sleeve 7 is fixedly installed on the lower wall of the isolation door 2. A sealing limit ring 27 is provided above the isolation door 2. The sealing limit ring 27 is fixedly installed on the inner wall of the housing 1. The protective cover 11 increases the service life of the drive motor 3. The automatic door device can control the passage of the high-temperature gas split on both sides, so that the activated carbon filter plate 30 can be replaced without stopping the operation. The sealing limit ring 27 provides better sealing when the isolation door is closed.

[0032] See appendix Figure 5 A tension spring 20 is fixedly installed inside the cavity of the secondary gear 18. A rotating disk 19 is fixedly connected to the lower wall of the tension spring 20. The rotating disk 19 is rotatably installed on the lower wall of the cavity of the fixed block 16. A gear groove is opened on the lower wall of the cavity of the fixed block 16. The gear groove cooperates with the secondary gear 18. A hook 12 is provided on the outer wall of the fixed plate 4. The hook 12 cooperates with the connecting ring 13. Through the gear groove and the tension spring 20, the locking device can be locked.

[0033] See appendix Figure 4 and attached Figure 6 The outer wall of the outer shell 1 is provided with a third connecting block 23. The upper end of the third connecting block 23 is provided with a second bearing 22. The outer wall of the second bearing 22 is fitted with a fixing plate 21. The front end of the fixing plate 21 is provided with a locking hole 25. The outer wall of the outer shell 1 is provided with a locking block 24. The locking hole 25 cooperates with the locking block 24. The fixing plate 4 is fixed in a secondary way, making its installation more secure.

[0034] See appendix Figure 1-8 Two sets of automatic door devices are provided, which are respectively installed on both sides of the partition 6. Two sets of locking mechanisms and activated carbon filter plates 30 are symmetrically arranged. A handle 5 is fixedly installed on the upper wall of the fixed plate 4. The handle 5 makes it easier to take out the activated carbon filter plate 30. A limit rod 28 is provided on the side wall of the rack 15. A limit hole 29 is opened on the inner side wall of the fixed block 16. The limit rod 28 and the limit hole 29 cooperate with each other. The rack 15 moves to a specific position through the limit rod 28. The outer shell 1 is divided into three layers. A heat insulation layer is provided in the middle of the outer shell 1. By setting the heat insulation layer, the high temperature flue gas inside will not affect the operation of the components on the outer wall.

[0035] A specific application of this embodiment is as follows: Before using this utility model, the worker places the activated carbon filter plate 30 into the outer casing 1 through the handle 5. Then, the worker hangs the connecting ring 13 on the hook 12. The worker then lifts the handle 26, which in turn lifts the second connecting block 17, which in turn lifts the secondary gear 18. The lifting of the secondary gear 18 stretches the tension spring 20, causing it to disengage from the gear slot. The worker then rotates the handle 26, which in turn rotates the secondary gear 18, causing the rack 15 to move. The rack 15 moves the first connecting block 14 and the connecting ring 13, causing the connecting ring 13 to tighten with the hook 12. The worker then lowers the handle 26, at which point the tension spring 20 returns to its original position. The return of the tension spring 20 causes the secondary gear 18 to return to its original position, allowing it to re-engage from the gear slot and complete the self-locking. Finally, the worker pries the fixing plate 21 inward, engaging the locking hole 25 at the upper end of the fixing plate 21 into the locking block 2. Within 4 hours, complete the secondary locking, then install the device in the required position, and then open the automatic door device to allow high-temperature flue gas to pass through both channels. When it is necessary to replace the activated carbon filter plate 30, the operator needs to ensure that the activated carbon filter plate 30 passing through on the correct side is replaced, and then start the corresponding drive motor 3. The drive motor 3 starts and drives the first bevel gear 9 to rotate, which in turn drives the second bevel gear 10 to rotate, which in turn drives the first bearing 8 to rotate, which in turn drives the fixing sleeve 7 and the isolation door 2 to rotate. The isolation door 2 rotates and closes the channel, preventing high-temperature flue gas from passing through. Then, the operator rotates the handle 26 to remove the fixing piece 21 from the locking block 24, and takes out the activated carbon filter plate 30 through the handle 5. Then, replace it with a new activated carbon filter plate 30, and then start the drive motor 3 again to open the isolation door 2, thus opening the channel and completing the replacement. The design of the automatic door device and the quick replacement of the activated carbon filter plate 30 allow the filter plate to be replaced without closing the operation, making it convenient to use and saving time.

[0036] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0037] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A high-temperature flue gas treatment device after pyrolysis of low-concentration methane gas, comprising a shell (1), characterized in that: A partition (6) is fixedly installed in the inner cavity of the outer shell (1). An automatic door device is provided at the front end of the partition (6). An activated carbon filter plate (30) is provided in the middle of the outer shell (1). A fixing plate (4) is fixedly installed on the upper wall of the activated carbon filter plate (30). A locking mechanism is fixedly installed on the outer wall of the outer shell (1). The locking mechanism includes a fixing block (16), a rack (15), and a secondary gear (18). A rack (15) is slidably installed in the inner cavity of the fixing block (16). A first connecting block (14) is fixedly installed on the upper wall of the rack (15). A connecting ring (13) is installed on the upper end of the first connecting block (14). A secondary gear (18) is installed on the side of the rack (15). A second connecting block (17) is fixedly installed on the upper wall of the secondary gear (18). A handle (26) is fixedly installed on the side wall of the second connecting block (17).

2. The high-temperature flue gas treatment device after low-concentration methane gas pyrolysis according to claim 1, characterized in that: The automatic door device includes a drive motor (3) and an isolation door (2). The drive motor (3) is fixedly installed on the outer wall of the outer shell (1). A protective cover (11) is provided around the drive motor (3). A first bevel gear (9) is fixedly installed at the output end of the drive motor (3). A second bevel gear (10) is provided below the first bevel gear (9). The first bevel gear (9) meshes with the second bevel gear (10). A first bearing (8) is fixedly installed on the lower wall of the second bevel gear (10). A fixing sleeve (7) is fixedly installed on the outer wall of the first bearing (8). The fixing sleeve (7) is fixedly installed on the lower wall of the isolation door (2). A sealing limit ring (27) is provided above the isolation door (2). The sealing limit ring (27) is fixedly installed on the inner wall of the outer shell (1).

3. The high-temperature flue gas treatment device after low-concentration methane gas pyrolysis according to claim 1, characterized in that: A tension spring (20) is fixedly installed inside the cavity of the secondary gear (18). A rotating disk (19) is fixedly connected to the lower wall of the tension spring (20). The rotating disk (19) is rotatably installed on the lower wall of the cavity of the fixed block (16). A gear groove is provided on the lower wall of the cavity of the fixed block (16). The gear groove cooperates with the secondary gear (18). A hook (12) is provided on the outer wall of the fixed plate (4). The hook (12) cooperates with the connecting ring (13).

4. The high-temperature flue gas treatment device after low-concentration methane gas pyrolysis according to claim 1, characterized in that: The outer wall of the outer shell (1) is provided with a No. 3 connecting block (23), the upper end of the No. 3 connecting block (23) is provided with a No. 2 bearing (22), the outer wall of the No. 2 bearing (22) is fitted with a fixing plate (21), the front end of the fixing plate (21) is provided with a locking hole (25), the outer wall of the outer shell (1) is provided with a locking block (24), and the locking hole (25) cooperates with the locking block (24).

5. The high-temperature flue gas treatment device after low-concentration methane gas pyrolysis according to claim 1, characterized in that: The automatic door device is provided in two sets, and the two sets of automatic door devices are respectively installed on both sides of the partition (6).

6. The high-temperature flue gas treatment device after low-concentration methane gas pyrolysis according to claim 1, characterized in that: The locking mechanism and the activated carbon filter plate (30) are symmetrically arranged in two sets, and a handle (5) is fixedly installed on the upper wall of the fixing plate (4).

7. The high-temperature flue gas treatment device after low-concentration methane gas pyrolysis according to claim 1, characterized in that: The rack (15) has a limiting rod (28) on its side wall, and the fixing block (16) has a limiting hole (29) on its inner side wall. The limiting rod (28) and the limiting hole (29) cooperate with each other.

8. The high-temperature flue gas treatment device after low-concentration methane gas pyrolysis according to claim 1, characterized in that: The outer shell (1) is divided into three layers, and a heat insulation layer is provided in the middle of the outer shell (1).

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