Water spraying quenching device for solid waste treatment

Abstract

The utility model discloses a water spray quenching device for solid waste treatment, which comprises a combustion chamber, the combustion chamber is communicated with a secondary combustion chamber, the secondary combustion chamber is communicated with a pre-cooling furnace through a first communicating pipe, a smoke pipe assembly is arranged in the pre-cooling furnace, the smoke pipe assembly is communicated with a quenching furnace, and the quenching furnace is communicated with the secondary combustion chamber through a second communicating pipe. And a smoke tube quenching assembly is arranged in the quenching furnace. Through the arrangement of the pre-cooling furnace, flue gas after combustion can be pre-cooled through the pre-cooling furnace and then enters the quenching furnace to be cooled, so that the quenching furnace can have a better cooling effect, and meanwhile, through the arrangement of the transverse pipes and the staggered vertical pipes in the pre-cooling furnace, the pre-cooling can be better carried out; through the arrangement of the circulating water tank, water in the quenching furnace can be recycled and used for cooling flue gas in the precooling furnace, and through the arrangement of the main pipe and the extension plate in the quenching furnace, the flue gas can be better cooled in the water spraying process.

Description

Technical Field

[0001] This utility model relates to the field of water spray cooling technology, specifically a water spray cooling device for solid waste treatment. Background Technology

[0002] Effective treatment of solid waste is a crucial issue in modern industry and environmental protection. With rapid industrialization and urbanization, the amount of solid waste generated, including industrial slag, domestic waste, and hazardous waste, is constantly increasing. If not properly treated, this solid waste not only occupies land resources but also poses a serious threat to the environment and human health. Therefore, developing efficient and environmentally friendly solid waste treatment technologies and equipment is of paramount importance. Solid waste treatment often involves high-temperature pyrolysis, incineration, or gasification processes. In these processes, the generated high-temperature flue gas and related substances need to be rapidly cooled to prevent the formation of secondary pollutants and to improve the efficiency of subsequent gas purification. Against this backdrop, water spray quenching devices have emerged. These devices utilize water mist to directly contact high-temperature gas, rapidly reducing the gas temperature through evaporation and heat absorption. They offer advantages such as simple structure, low operating costs, and significant cooling effects.

[0003] However, existing technologies still have significant shortcomings, such as:

[0004] In existing technologies, flue gas from the combustion chamber is often directly discharged into the quench furnace for cooling, which is not effective in cooling the flue gas. In addition, in existing technologies, quench water is often used only once without being circulated or reused multiple times, which is very wasteful. Utility Model Content

[0005] The purpose of this invention is to provide a water spray quenching device for solid waste treatment to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A water spray quenching device for solid waste treatment includes a combustion chamber, which is connected to a secondary combustion chamber, and the secondary combustion chamber is connected to a precooling furnace through a first connecting pipe.

[0008] The precooling furnace is equipped with a flue pipe assembly, which is connected to the secondary combustion chamber. The flue pipe assembly is also connected to a quench furnace, which is equipped with a flue pipe quench assembly.

[0009] The flue gas quenching assembly includes a main flue gas pipe disposed inside the quenching furnace. The main flue gas pipe and the flue gas pipe assembly are connected by a second connecting pipe. The main flue gas pipe is provided with a plurality of extension plates, and the extension plates are provided with cavities inside, and the cavities are connected to the main flue gas pipe.

[0010] The quench furnace is equipped with a quench water tank on its exterior and a number of spray heads on its inner wall. The spray heads and the quench water tank are connected through a first water inlet pipe, and a first water outlet pipe is connected to the bottom of the quench furnace.

[0011] A water circulation component is installed at the bottom of the quench furnace. The water circulation component is used to recycle the water inside the quench furnace and to precool the precooling furnace.

[0012] Preferably, the flue assembly includes several horizontal pipes fixedly installed inside the precooling furnace, the spacing between the horizontal pipes gradually decreasing from top to bottom, and adjacent horizontal pipes being connected by vertical pipes.

[0013] Preferably, the vertical tubes are staggered among the horizontal tubes.

[0014] Preferably, the water circulation assembly includes a circulating water tank disposed at the bottom of the quench furnace, the circulating water tank being connected to the interior of the quench furnace via a first outlet pipe;

[0015] The precooling furnace is equipped with a second water inlet pipe and a second water outlet pipe, and the circulating water tank is connected to the interior of the precooling furnace through the second water inlet pipe.

[0016] Preferably, the second water inlet pipe is located at the bottom of the precooling furnace, the second water outlet pipe is located at the top of the precooling furnace, and the second water outlet pipe is connected to a wastewater recovery tank.

[0017] Preferably, a plurality of heat dissipation plates are provided on the outer wall of the circulating water tank, and a filter plate is movably arranged inside the circulating water tank.

[0018] Preferably, the outer wall of the quench furnace is provided with an exhaust pipe that communicates with the main flue.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. By setting up a precooling furnace, the flue gas after combustion can be precooled in the precooling furnace before entering the quench furnace for cooling, so that the quench furnace can have a better cooling effect. At the same time, the arrangement of multiple horizontal pipes and intersecting vertical pipes inside the precooling furnace can extend the path of the flue gas inside the precooling furnace, so as to better precool it.

[0021] 2. By setting up a circulating water tank, the water inside the quench furnace can be recycled and used to cool the flue gas inside the precooling furnace;

[0022] 3. The main tubes and extension plates inside the quench furnace enable the flue gas to be cooled better during the water spraying process. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the internal structure of the precooling furnace of this utility model;

[0025] Figure 3 This is a schematic diagram of the internal structure of the quench furnace of this utility model;

[0026] Figure 4 This is a three-dimensional structural diagram of the circulating water tank of this utility model.

[0027] In the diagram: 1. Combustion chamber; 2. Secondary combustion chamber; 3. First connecting pipe; 4. Precooling furnace; 5. Quenching furnace; 6. Main flue; 7. Second connecting pipe; 8. Extension plate; 9. Cavity; 10. Quenching water tank; 11. Spray head; 12. First water inlet pipe; 13. First water outlet pipe; 14. Horizontal pipe; 15. Vertical pipe; 16. Circulating water tank; 17. Second water inlet pipe; 18. Second water outlet pipe; 19. Wastewater recovery tank; 20. Heat dissipation plate; 21. Filter plate; 22. Exhaust pipe. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1-4 This utility model provides a technical solution:

[0030] A water spray quenching device for solid waste treatment includes a combustion chamber 1, a secondary combustion chamber 2 connected to the combustion chamber 1, and a precooling furnace 4 connected to the secondary combustion chamber 2 through a first connecting pipe 3.

[0031] In this embodiment, a combustion chamber 1 and a secondary combustion chamber 2 are provided. Solid waste is first fully combusted inside the combustion chamber 1 and the secondary combustion chamber 2, and then the flue gas generated enters the precooling furnace 4 through the first connecting pipe 3.

[0032] The precooling furnace 4 is equipped with a flue pipe assembly, which is connected to the secondary combustion chamber 2. The flue pipe assembly is also connected to the quench furnace 5, which is equipped with a flue pipe quench assembly.

[0033] The flue assembly in this embodiment is designed to pre-cool the flue gas, and then the pre-cooled flue gas enters the flue gas rapid cooling assembly for rapid cooling. This design ensures that the rapid cooling assembly can better cool the flue gas.

[0034] The flue gas quenching assembly includes a main flue gas pipe 6 installed inside the quenching furnace 5. The main flue gas pipe 6 and the flue gas assembly are connected by a second connecting pipe 7. Several extension plates 8 are installed on the main flue gas pipe 6. A cavity 9 is installed inside the extension plate 8. The cavity 9 is connected to the main flue gas pipe 6. An exhaust pipe 22 connected to the main flue gas pipe 6 is installed on the outer wall of the quenching furnace 5.

[0035] In this embodiment, the main flue 6 of the quench furnace 5 is square and is arranged inside the quench furnace 5 from top to bottom. The bottom of the quench furnace 5 is provided with an exhaust pipe 22 that is connected to the main flue 6. Several extension plates 8 are provided on both sides of the main flue 6. The cavity 9 inside the extension plate 8 is connected to the inside of the main flue 6. This arrangement can increase the area of ​​the flue gas. The cold water sprayed by the subsequent spray head 11 can cool the flue gas through the main flue 6 and the extension plate 8. In this embodiment, multiple spray heads 11 are provided and are arranged on the inner wall of the quench furnace 5.

[0036] A quenching furnace 5 is provided with a quenching water tank 10 on the outside, and a number of spray heads 11 are provided on the inner wall of the quenching furnace 5. The spray heads 11 and the quenching water tank 10 are connected through a first water inlet pipe 12, and a first water outlet pipe 13 is connected to the bottom of the quenching furnace 5.

[0037] In this embodiment, the cold water inside the quench water tank 10 enters the quench furnace 5 through the first inlet pipe 12 under the action of the water pump, and then sprays the main flue pipe 6 and the extension plate 8 through the spray head 11 to cool the flue gas. The water that enters the quench furnace 5 enters the water circulation component through the outlet pipe.

[0038] A water circulation component is installed at the bottom of the quench furnace 5. The water circulation component is used to recycle the water inside the quench furnace 5 and to precool the precooling furnace 4.

[0039] The flue assembly includes several horizontal tubes 14 fixedly installed inside the precooling furnace 4. The spacing between the horizontal tubes 14 gradually decreases from top to bottom. Adjacent horizontal tubes 14 are connected by vertical tubes 15, and the vertical tubes 15 are staggered between the horizontal tubes 14.

[0040] The second water inlet pipe 17 is located at the bottom of the precooling furnace 4, and the second water outlet pipe 18 is located at the top of the precooling furnace 4. The second water outlet pipe 18 is connected to the wastewater recovery tank 19.

[0041] In this embodiment, several horizontal pipes 14 and staggered vertical pipes 15 are arranged inside the precooling furnace 4. The horizontal pipes 14 and vertical pipes 15 are interconnected. This arrangement ensures that the flue gas has a longer path to flow inside the precooling furnace 4, thus ensuring the precooling effect. Although the temperature of the water after cooling the flue gas in the quench furnace 5 will rise to a certain extent, it can still cool the flue gas inside the precooling furnace 4. This is because the temperature of the flue gas inside the precooling furnace 4 is the highest, which is definitely higher than the temperature of the water after cooling the flue gas in the quench furnace 5. Considering that the circulating water is input from the bottom of the precooling furnace 4 under the action of a water pump and then discharged from the top of the precooling furnace 4, the horizontal pipes 14 are arranged more densely at the bottom of the precooling furnace 4, which can better precool the flue gas inside the precooling furnace 4.

[0042] After the circulating water precools the flue gas inside the precooling furnace 4, the temperature will rise again, and it will no longer be suitable for circulation. Therefore, the circulating water passing through the precooling furnace 4 will be directly discharged into the wastewater recovery tank 19.

[0043] The water circulation assembly includes a circulating water tank 16 located at the bottom of the quench furnace 5. The circulating water tank 16 is connected to the interior of the quench furnace 5 via a first water outlet pipe 13. The precooling furnace 4 is provided with a second water inlet pipe 17 and a second water outlet pipe 18. The circulating water tank 16 is connected to the interior of the precooling furnace 4 via the second water inlet pipe 17. Several heat dissipation plates 20 are provided on the outer wall of the circulating water tank 16. A filter screen plate 21 is movably arranged inside the circulating water tank 16.

[0044] The water circulation assembly is based on the circulating water tank 16. Under the action of the water pump, the circulating water inside the circulating water tank 16 is transported to the precooling furnace 4 through the second water inlet pipe 17, and discharged through the second water outlet pipe 18. A heat dissipation plate 20 is installed on the outer wall of the circulating water tank 16, which can cool the circulating water inside the circulating water tank 16 to a certain extent before entering the precooling furnace 4. The filter plate 21 installed can filter the circulating water to a certain extent. In this embodiment, the filter plate 21 is detachable, which can realize the periodic cleaning and replacement of the filter plate 21.

[0045] 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 water spray quenching device for solid waste treatment, comprising a combustion chamber (1), characterized in that: The combustion chamber (1) is connected to a secondary combustion chamber (2), and the secondary combustion chamber (2) is connected to a precooling furnace (4) through a first connecting pipe (3). The precooling furnace (4) is equipped with a flue pipe assembly, which is connected to the secondary combustion chamber (2). The flue pipe assembly is connected to a quench furnace (5), which is equipped with a flue pipe quench assembly. The flue gas quenching assembly includes a main flue gas pipe (6) disposed inside the quenching furnace (5). The main flue gas pipe (6) and the flue gas pipe assembly are connected through a second connecting pipe (7). The main flue gas pipe (6) is provided with a plurality of extension plates (8). The extension plates (8) are provided with cavities (9) inside. The cavities (9) are connected to the main flue gas pipe (6). The quench furnace (5) is provided with a quench water tank (10) on the outside, and a number of spray heads (11) are provided on the inner wall of the quench furnace (5). The spray heads (11) and the quench water tank (10) are connected through a first water inlet pipe (12). The bottom of the quench furnace (5) is connected to a first water outlet pipe (13). The bottom of the quench furnace (5) is equipped with a water circulation component, which is used to recycle the water inside the quench furnace (5) and to precool the precooling furnace (4).

2. The water spray quenching device for solid waste treatment according to claim 1, characterized in that: The flue assembly includes several horizontal pipes (14) fixedly installed inside the precooling furnace (4). The spacing between the horizontal pipes (14) gradually decreases from top to bottom, and adjacent horizontal pipes (14) are connected by vertical pipes (15).

3. The water spray quenching device for solid waste treatment according to claim 2, characterized in that: The vertical tubes (15) are staggered between the horizontal tubes (14).

4. A water spray quenching device for solid waste treatment according to claim 3, characterized in that: The water circulation assembly includes a circulating water tank (16) located at the bottom of the quench furnace (5), and the circulating water tank (16) is connected to the interior of the quench furnace (5) through a first outlet pipe (13). The precooling furnace (4) is equipped with a second water inlet pipe (17) and a second water outlet pipe (18), and the circulating water tank (16) is connected to the interior of the precooling furnace (4) through the second water inlet pipe (17).

5. A water spray quenching device for solid waste treatment according to claim 4, characterized in that: The second water inlet pipe (17) is located at the bottom of the precooling furnace (4), and the second water outlet pipe (18) is located at the top of the precooling furnace (4). The second water outlet pipe (18) is connected to a wastewater recycling tank (19).

6. A water spray quenching device for solid waste treatment according to claim 4, characterized in that: The outer wall of the circulating water tank (16) is provided with several heat dissipation plates (20), and the inside of the circulating water tank (16) is provided with a filter plate (21).

7. A water spray quenching device for solid waste treatment according to claim 1, characterized in that: The outer wall of the quench furnace (5) is provided with an exhaust pipe (22) that is connected to the main flue pipe (6).

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