Gasification furnace for sludge treatment

Abstract

The utility model relates to the technical field of gasification furnaces, in particular to a gasification furnace for sludge treatment, which comprises a gasification furnace main body, the lower end of the gasification furnace main body is fixedly connected with a support frame, the middle position of the gasification furnace main body is communicated with a transverse pipe, the transverse pipe is vertically communicated with a vertical pipe, the vertical pipe is connected with an air extractor, and the air extractor is connected with an air outlet. The inner wall of the transverse pipe abuts against a filtering assembly, a connecting rod is fixedly connected to the filtering assembly, the connecting rod is connected with an end cover, a sealing gasket is arranged on the end cover, and the end cover is fixedly connected with the transverse pipe through a bolt. The filter assembly can be conveniently taken out for cleaning, and the operation is convenient and fast.

Description

Technical Field

[0001] This utility model relates to the field of gasification furnace technology, and in particular to a gasification furnace for sludge treatment. Background Technology

[0002] After drying, the sludge is temporarily stored in a dry sludge silo. The system adds biomass to the silo according to the actual calorific value requirement. After the dry sludge and auxiliary biomass are mixed according to the proportion, they enter the gasifier and move from top to bottom under the action of gravity. During the movement, the four stages of reaction, namely "drying, pyrolysis, reduction and oxidation (burning off residual carbon)," are completed in sequence.

[0003] After entering the gasifier, the sludge is first further dried in the drying zone, where water vapor is discharged. In the pyrolysis zone, the organic matter in the sludge and auxiliary materials decomposes and gasifies, forming combustible gas. The non-gasifiable residue mixes with preheated air at the bottom of the pyrolysis gasifier and burns under oxygen-deficient conditions to generate carbon monoxide, releasing heat in the process. The inorganic matter in the residue melts at high temperatures, is cooled by water quenching, and is then discharged as brick aggregate. When extracting the combustible gas from the pyrolysis zone, the inorganic minerals in the sludge form ash particles at high temperatures, which are carried out with the airflow. To prevent impurities from affecting other equipment, the combustible gas must be filtered through filter components (such as filter cartridges and filter bags).

[0004] Because the high-temperature syngas contains tar vapor, it easily attracts dust after condensation, causing the filter components to become clogged. Therefore, the filter components need to be cleaned regularly. However, in order to save space, gasifiers often integrate the filter components directly inside the synthesis pipeline, forming an embedded filter structure. Furthermore, the components are generally fixed to the inner wall of the pipeline, making it difficult to disassemble and clean them. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies that make it difficult to disassemble and clean filter components, and to propose a gasification furnace for sludge treatment.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] Design a gasifier for sludge treatment, including a gasifier body, a support frame fixedly connected to the lower end of the gasifier body, a horizontal pipe connected to the middle of the gasifier body, a vertical pipe connected vertically to the horizontal pipe, an air extraction device connected to the vertical pipe, a filter assembly abutting against the inner wall of the horizontal pipe, a connecting rod fixedly connected to the filter assembly, the connecting rod connected to an end cover, a sealing gasket provided on the end cover, and the end cover fixedly connected to the horizontal pipe by bolts.

[0008] Preferably, the filter assembly includes a metal filter and a ceramic filter, both of which are fixedly connected to the connecting rod and abut against the inner wall of the horizontal tube.

[0009] Preferably, the sealing gasket is a ceramic fiber sealing gasket.

[0010] Preferably, a connecting block is fixedly connected to the end cap, and both the connecting block and the connecting rod are provided with connecting holes. A connecting post is provided in the connecting hole, and a stop bar is vertically fixedly connected to the connecting post. The stop bar abuts against the connecting block.

[0011] Preferably, the outer surface of the end cap is provided with a pointing point.

[0012] Preferably, a steam pipe is connected to the upper end of the gasifier body, and a steam-water separator is connected to the steam pipe.

[0013] Preferably, an air supply pipe is connected to the lower end of the gasifier body, and an air supply fan is connected to the air supply pipe.

[0014] Preferably, the air extraction device is a high-temperature resistant Roots blower.

[0015] The gasification furnace for sludge treatment proposed in this utility model has the following advantages: since the filter component is connected to the end cover, the filter component is taken out together when the end cover is removed, so that the filter component can be removed for cleaning, making the operation convenient and quick. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a gasification furnace for sludge treatment proposed in this utility model;

[0017] Figure 2 This is a perspective view of the vertical and horizontal pipe sections of a gasifier for sludge treatment proposed in this utility model.

[0018] Figure 3 A three-dimensional cross-sectional view of the vertical and horizontal pipe sections of a gasifier for sludge treatment proposed in this utility model. Figure 1 ;

[0019] Figure 4 A three-dimensional cross-sectional view of the vertical and horizontal pipe sections of a gasifier for sludge treatment proposed in this utility model. Figure 2 ;

[0020] Figure 5 This is a perspective view of the end cover and connecting rod portion of a gasifier for sludge treatment proposed in this utility model.

[0021] Figure 6 This is a perspective view of the end cover portion of a gasifier for sludge treatment proposed in this utility model.

[0022] In the diagram: 1. Gasifier body; 2. Steam-water separator; 3. Steam pipe; 4. Blower; 5. Air supply pipe; 6. Support frame; 7. Exhaust device; 8. Vertical pipe; 9. Horizontal pipe; 10. End cap; 11. Connecting rod; 12. Metal filter screen; 13. Ceramic filter screen; 14. Bolt; 15. Pointing point; 16. Connecting column; 17. Stop bar; 18. Sealing gasket; 19. Connecting hole; 20. Connecting block. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Example 1: Refer to Figure 1-5 A gasification furnace for sludge treatment includes a gasification furnace body 1, a support frame 6 fixedly connected to the lower end of the gasification furnace body 1, a steam pipe 3 connected to the upper end of the gasification furnace body 1, a steam-water separator 2 connected to the steam pipe 3, and sludge drying treatment in the drying zone of the gasification furnace body 1, with steam generated during the drying process being discharged through the steam pipe 3.

[0025] The lower end of the gasifier body 1 is connected to an air supply pipe 5, and an air supply fan 4 is connected to the air supply pipe 5. The air supply fan 4 supplies oxygen into the gasifier body 1 through the air supply pipe 5 to provide the oxygen required for the chemical reaction.

[0026] A horizontal pipe 9 is connected to the middle of the gasifier body 1. A vertical pipe 8 is connected to the horizontal pipe 9. An exhaust device 7 is connected to the vertical pipe 8. The exhaust device 7 is a high-temperature resistant Roots blower. A filter assembly is abutted against the inner wall of the horizontal pipe 9. A connecting rod 11 is fixedly connected to the filter assembly. The connecting rod 11 is connected to the end cover 10. A sealing gasket 18 is provided on the end cover 10. The working environment temperature of the sealing gasket 18 is high, so the sealing gasket 18 is a high-temperature resistant ceramic fiber sealing gasket.

[0027] The end cap 10 is fixedly connected to the horizontal tube 9 by bolts 14. The filter assembly is installed on the connecting rod 11. When cleaning is required, the end cap 10 is removed and taken out. Since the filter assembly is connected to the end cap 10, the filter assembly is taken out together when the end cap 10 is removed, so that the filter assembly can be taken out for cleaning. The operation is convenient and quick.

[0028] When cleaning the filter assembly regularly, use a screwdriver to remove bolt 14 to release the end cover 10 from the pipe. Then, move the end cover 10 out of the horizontal pipe 9 and pull the connecting rod 11. As the connecting rod 11 moves, it moves the filter assembly, thereby removing the filter assembly slot from the pipe for cleaning.

[0029] Example 2: Refer to Figure 2-5 In another preferred embodiment of this utility model, based on embodiment 1, the filter assembly includes a metal filter screen 12 and a ceramic filter screen 13. Both the metal filter screen 12 and the ceramic filter screen 13 are fixedly connected to the connecting rod 11. Both the metal filter screen 12 and the ceramic filter screen 13 abut against the inner wall of the horizontal tube 9. The metal filter screen 12 performs preliminary filtration of combustible gas, and the ceramic filter screen 13 performs secondary filtration of combustible gas, thereby enhancing the overall filtration effect.

[0030] Example 3: In Example 2, because the end cap 10 is connected to the connecting rod 11, when the filter assembly is damaged and needs to be replaced, the end cap 10 must also be replaced, resulting in a waste of the end cap 10 resources. (Refer to...) Figure 2-5 In another preferred embodiment of this utility model, based on embodiment 1, a connecting block 20 is fixedly connected to the end cap 10. Both the connecting block 20 and the connecting rod 11 are provided with connecting holes 19. A connecting post 16 is provided in the connecting hole 19. A stop rod 17 is vertically fixedly connected to the connecting post 16. The stop rod 17 abuts against the connecting block 20. By inserting the connecting post 16 into the connecting hole 19, the end cap 10 and the connecting rod 11 are fixed. When the filter assembly is damaged, the end cap 10 and the connecting rod 11 can be separated. Only the filter assembly needs to be replaced, avoiding the waste of resources caused by replacing the end cap 10 and saving costs.

[0031] When disassembling the end cap 10 and the connecting rod 11, pull the stop bar 17 to move the connecting post 16, disengage the connecting post 16 from the connecting hole 19, and complete the disassembly of the end cap 10 and the connecting rod 11.

[0032] Example 4: In Example 3, the connecting post 16 can only be placed in the connecting hole 19 when the stop bar 17 is above and abuts against the connecting block 20, preventing the connecting post 16 from detaching. (Refer to...) Figure 2-6 As another preferred embodiment of this utility model, based on embodiment 3, the outer surface of the end cap 10 is provided with a pointing point 15, which is used to indicate the installation direction. When installing the end cap 10, it is aligned with the top to ensure that the stop rod 17 limits the connecting post 16 so that the connecting post 16 will not detach from the connecting hole 19.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A gasifier for sludge treatment, comprising a gasifier body (1), characterized in that, A support frame (6) is fixedly connected to the lower end of the gasifier body (1). A horizontal pipe (9) is connected to the middle of the gasifier body (1). A vertical pipe (8) is vertically connected to the horizontal pipe (9). An air extraction device (7) is connected to the vertical pipe (8). A filter assembly is abutted against the inner wall of the horizontal pipe (9). A connecting rod (11) is fixedly connected to the filter assembly. The connecting rod (11) is connected to the end cap (10). A sealing gasket (18) is provided on the end cap (10). The end cap (10) is fixedly connected to the horizontal pipe (9) by bolts (14).

2. The gasification furnace for sludge treatment according to claim 1, characterized in that, The filter assembly includes a metal filter screen (12) and a ceramic filter screen (13). Both the metal filter screen (12) and the ceramic filter screen (13) are fixedly connected to the connecting rod (11). Both the metal filter screen (12) and the ceramic filter screen (13) abut against the inner wall of the horizontal tube (9).

3. A gasification furnace for sludge treatment according to claim 1, characterized in that, The sealing gasket (18) is a ceramic fiber sealing gasket.

4. A gasification furnace for sludge treatment according to claim 1, characterized in that, A connecting block (20) is fixedly connected to the end cap (10). Both the connecting block (20) and the connecting rod (11) are provided with connecting holes (19). A connecting post (16) is provided in the connecting hole (19). A stop rod (17) is vertically fixedly connected to the connecting post (16). The stop rod (17) abuts against the connecting block (20).

5. A gasification furnace for sludge treatment according to claim 4, characterized in that, The outer surface of the end cap (10) is provided with a pointing point (15).

6. A gasification furnace for sludge treatment according to claim 1, characterized in that, A steam pipe (3) is connected to the upper end of the gasifier body (1), and a steam-water separator (2) is connected to the steam pipe (3).

7. A gasification furnace for sludge treatment according to claim 4, characterized in that, The lower end of the gasifier body (1) is connected to an air supply pipe (5), and an air supply fan (4) is connected to the air supply pipe (5).

8. A gasification furnace for sludge treatment according to claim 1, characterized in that, The air extraction device (7) is a high-temperature resistant Roots blower.

Images