Domestic garbage pyrolysis and gasification chain grate furnace

Abstract

The utility model relates to the technical field of household garbage treatment, and discloses a household garbage pyrolysis gasification chain grate furnace which comprises a fixed base, a chain grate furnace is installed in the fixed base, a pyrolysis bin is installed at the top of the fixed base, and a smoke exhaust pipe is fixedly connected to the surface of the pyrolysis bin. The output end of the smoke exhaust pipe is fixedly connected with a first flange, the surface of the first flange is in threaded connection with a second flange, one end of the second flange is fixedly connected with a limiting pipe, and the other end of the second flange is fixedly connected with a V-shaped pipe. According to the utility model, by arranging the filter plate, flue gas generated in pyrolysis of household garbage is filtered when passing through the filter plate in the V-shaped pipe, impurities in the flue gas are filtered, pollution caused by secondary utilization or direct emission of the flue gas is avoided, the filtered flue gas impurities are settled in the V-shaped pipe to reach the bottom of the V-shaped pipe, and the flue gas is prevented from entering the V-shaped pipe. And the waste water falls into the collecting box through the connecting pipe to be collected, so that subsequent treatment is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of municipal solid waste treatment technology, specifically to a chain grate furnace for municipal solid waste pyrolysis and gasification. Background Technology

[0002] A gasification chain grate stoker is an industrial boiler that uses a chain grate as the combustion device to burn solid fuels such as coal. This boiler's design allows coal to move continuously across the grate, mixing with air supplied through zoned air chambers to achieve combustion. The heat generated is used to heat water or steam to supply industrial processes or heating systems. Gasification chain grate stokers are widely used due to their reliable structure and stable operation. In the design of a gasification chain grate stoker, a water-cooled coal gate is typically installed on the front wall of the furnace to control the amount of coal added and protect the gate from high-temperature damage. A high-temperature radiation arch is installed inside the furnace to increase the heating rate of the coal coke and ensure complete combustion. Furthermore, the heat distribution within the furnace can be optimized through grate design and operating parameters to improve thermal efficiency and reduce environmental pollution.

[0003] When using a gasification chain grate furnace for the pyrolysis of municipal solid waste, a large amount of gas and flue gas will be generated inside. During the process of flue gas emission, collection and secondary utilization, or direct emission, a large amount of impurities will be generated. Therefore, when emitting or collecting flue gas, it is necessary to separate it to avoid interference from impurities inside the flue gas, and at the same time, it is necessary to facilitate the collection of impurities to avoid interference. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a chain grate furnace for pyrolysis and gasification of municipal solid waste, including a fixed base, a chain grate furnace installed inside the fixed base, a pyrolysis chamber installed on the top of the fixed base, an exhaust pipe fixedly connected to the surface of the pyrolysis chamber, a first flange fixedly connected to the output end of the exhaust pipe, a second flange threadedly connected to the surface of the first flange, a limit pipe fixedly connected to one end of the second flange, a V-shaped pipe fixedly connected to the other end of the second flange, a connecting pipe fixedly connected to the bottom of the V-shaped pipe, a mounting plate one fixedly connected to the bottom of the connecting pipe, a mounting plate two threadedly connected to the bottom of the mounting plate one, a collection chamber fixedly connected to the bottom of the mounting plate two, a limit plate fixedly connected to the inner wall of the V-shaped pipe, a spring one fixedly connected to the top of the limit plate, and a filter plate fixedly connected to the top of the spring one.

[0005] The above technical solution uses a filter plate to filter the flue gas generated during the pyrolysis of municipal solid waste. The flue gas passes through the filter plate inside the V-shaped tube, filtering out impurities and preventing pollution during the secondary use or direct emission of the flue gas. At the same time, the filtered flue gas impurities settle inside the V-shaped tube to the bottom and fall into the collection box through the connecting pipe for collection, facilitating subsequent processing.

[0006] As a further improvement to the above scheme, the pyrolysis chamber is located above the chain grate furnace, and the input end of the flue pipe is located inside the pyrolysis chamber.

[0007] With the above technical solution, the inlet end of the exhaust pipe is located inside the pyrolysis chamber, which can promptly discharge the flue gas generated during the pyrolysis process, preventing the flue gas from accumulating inside the pyrolysis chamber and thus ensuring the continuous and stable progress of the pyrolysis reaction. At the same time, the precise design of the inlet end position ensures the effective discharge of flue gas generated in different areas within the pyrolysis chamber, improving the exhaust efficiency.

[0008] As a further improvement to the above solution, the limiting tube is set inside the exhaust pipe, and there are two limiting plates, which are located at the top and bottom of the spring one, respectively.

[0009] Through the above technical solution, the top limiting plate can prevent the filter plate from rising excessively when subjected to a large upward force (such as a sudden increase in exhaust pressure), and the bottom limiting plate can prevent the spring from being over-compressed, thereby ensuring that the filter plate performs filtration work within a relatively stable range and extending the service life of the filter plate and the spring.

[0010] As a further improvement to the above solution, the number of springs is set to three, and the three springs are evenly distributed on the surface with respect to the top center of the limiting plate.

[0011] Through the above technical solution, three springs are set and symmetrically and evenly distributed on the surface around the top center of the limiting plate. When uneven pressure is applied to the filter plate during smoke exhaust, the three springs work together to ensure that the filter plate maintains a relatively stable position in all directions. The uniform distribution of support force helps to improve the filtration effect of the filter plate and reduces the possibility of filter plate deformation or damage caused by excessive local pressure.

[0012] As a further improvement to the above solution, a connecting platform is fixedly connected to the surface of the V-shaped tube, a second spring is fixedly connected to the top of the connecting platform, and a striking hammer is fixedly connected to the top of the second spring.

[0013] The above technical solution involves setting up a striking hammer. Pressing the striking hammer causes its bottom to swing under the action of a spring, striking the filter plate and ensuring that the filter screen is not clogged.

[0014] As a further improvement to the above solution, the bottom of the striking hammer is positioned above the filter screen.

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

[0016] This invention uses a filter plate to filter the flue gas generated during the pyrolysis of municipal solid waste. The flue gas passes through the filter plate inside the V-shaped tube, removing impurities and preventing pollution during the secondary use or direct emission of the flue gas. Simultaneously, the filtered flue gas impurities settle inside the V-shaped tube to the bottom and fall into the collection box through a connecting pipe for collection, facilitating subsequent processing.

[0017] This invention features a striking hammer. When the hammer is pressed, its bottom swings under the action of a spring, striking the filter plate and ensuring that the filter screen is not clogged. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the separation structure of the first flange and the second flange of this utility model;

[0020] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A;

[0021] Figure 4 This is a schematic diagram of the cross-sectional structure of the V-shaped tube of this utility model;

[0022] Figure 5 This utility model Figure 4 Enlarged structural diagram at point B.

[0023] In the diagram: 1. Fixed base; 2. Chain grate furnace; 3. Pyrolysis chamber; 4. Exhaust pipe; 5. First flange; 6. Second flange; 7. Limiting pipe; 8. V-shaped pipe; 9. Connecting pipe; 10. Mounting plate one; 11. Mounting plate two; 13. Collection chamber; 14. Limiting plate; 15. Spring one; 16. Filter plate; 17. Connecting platform; 18. Spring two; 19. Impact hammer. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0025] Example:

[0026] Please combine Figure 1-5 This embodiment of a municipal solid waste pyrolysis gasification chain grate furnace includes a fixed base 1, a chain grate furnace 2 installed inside the fixed base 1, a pyrolysis chamber 3 installed on the top of the fixed base 1, an exhaust pipe 4 fixedly connected to the surface of the pyrolysis chamber 3, a first flange 5 fixedly connected to the output end of the exhaust pipe 4, a second flange 6 threadedly connected to the surface of the first flange 5, a limit pipe 7 fixedly connected to one end of the second flange 6, a V-shaped pipe 8 fixedly connected to the other end of the second flange 6, a connecting pipe 9 fixedly connected to the bottom of the V-shaped pipe 8, a mounting plate 10 fixedly connected to the bottom of the connecting pipe 9, a second mounting plate 11 threadedly connected to the bottom of the first mounting plate 10, a collection chamber 13 fixedly connected to the bottom of the second mounting plate 11, a limit plate 14 fixedly connected to the inner wall of the V-shaped pipe 8, a spring 15 fixedly connected to the top of the limit plate 14, and a filter plate 16 fixedly connected to the top of the spring 15.

[0027] The pyrolysis chamber 3 is located above the chain grate furnace 2, and the inlet end of the exhaust pipe 4 is located inside the pyrolysis chamber 3.

[0028] The limiting tube 7 is installed inside the exhaust pipe 4, and there are two limiting plates 14, which are located at the top and bottom of the spring 15 respectively.

[0029] There are three springs 15, which are evenly distributed on the surface with respect to the top center of the limiting plate 14.

[0030] A connecting platform 17 is fixedly connected to the surface of the V-tube 8, a second spring 18 is fixedly connected to the top of the connecting platform 17, and a striking hammer 19 is fixedly connected to the top of the second spring 18.

[0031] The bottom of the striking hammer 19 is positioned above the filter plate 16.

[0032] The implementation principle of the chain grate furnace for pyrolysis gasification of municipal solid waste in this embodiment is as follows: When pyrolyzing municipal solid waste, the waste is first placed inside the pyrolysis chamber 3 for pyrolysis. The flue gas generated during the pyrolysis process enters the flue pipe 4 and is then discharged through the V-shaped pipe 8. During the discharge process, the flue gas is filtered by the filter plate 16 inside the V-shaped pipe 8 to remove impurities, thus preventing pollution during the secondary use or direct discharge of the flue gas. At the same time, the filtered flue gas impurities settle inside the V-shaped pipe 8 and reach the bottom of the V-shaped pipe 8, and then fall into the collection box through the connecting pipe 9 for collection, facilitating subsequent processing.

[0033] To prevent the filter plate 16 from clogging after prolonged use, the bottom of the hammer 19 is pressed and shaken by the spring to strike the filter plate 16, ensuring that the filter screen is not clogged.

[0034] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A chain grate furnace for pyrolysis and gasification of municipal solid waste, characterized in that: The system includes a fixed base (1), inside which a chain grate furnace (2) is installed. A pyrolysis chamber (3) is installed on top of the fixed base (1). An exhaust pipe (4) is fixedly connected to the surface of the pyrolysis chamber (3). A first flange (5) is fixedly connected to the output end of the exhaust pipe (4). A second flange (6) is threadedly connected to the surface of the first flange (5). A limit tube (7) is fixedly connected to one end of the second flange (6), and a V-shaped tube (8) is fixedly connected to the other end of the second flange (6). The bottom of the V-shaped tube (8) is fixedly connected to a connecting tube (9), the bottom of the connecting tube (9) is fixedly connected to a mounting plate one (10), the bottom of the mounting plate one (10) is threadedly connected to a mounting plate two (11), the bottom of the mounting plate two (11) is fixedly connected to a collection chamber (13), the inner wall of the V-shaped tube (8) is fixedly connected to a limiting plate (14), the top of the limiting plate (14) is fixedly connected to a spring one (15), and the top of the spring one (15) is fixedly connected to a filter plate (16).

2. The chain grate furnace for municipal solid waste pyrolysis gasification according to claim 1, characterized in that: The pyrolysis chamber (3) is located above the chain grate furnace (2), and the input end of the exhaust pipe (4) is located inside the pyrolysis chamber (3).

3. The chain grate furnace for municipal solid waste pyrolysis gasification according to claim 1, characterized in that: The limiting tube (7) is installed inside the exhaust pipe (4), and there are two limiting plates (14), which are located at the top and bottom of the spring (15) respectively.

4. A chain grate furnace for municipal solid waste pyrolysis gasification according to claim 1, characterized in that: The number of springs (15) is three, and the three springs (15) are evenly distributed on the surface with symmetry about the top center of the limiting plate (14).

5. A chain grate furnace for pyrolysis and gasification of municipal solid waste according to claim 1, characterized in that: A connecting platform (17) is fixedly connected to the surface of the V-shaped tube (8), a second spring (18) is fixedly connected to the top of the connecting platform (17), and a striking hammer (19) is fixedly connected to the top of the second spring (18).

6. A chain grate furnace for municipal solid waste pyrolysis gasification according to claim 5, characterized in that: The bottom of the striking hammer (19) is positioned above the filter plate (16).

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