Household garbage incineration fly ash treatment device

Abstract

The utility model relates to the related technical field of garbage treatment, and discloses a household garbage incineration fly ash treatment device which comprises a main body assembly and an ash removal assembly, the main body assembly comprises a base, an outer cylinder is fixed on the base, an inner cylinder is arranged in an inner cavity of the outer cylinder, the main body assembly further comprises a leading-in pipeline, and the leading-in pipeline is communicated with the ash removal assembly. And the inlet pipeline penetrates through the side wall of the outer cylinder and the top end of the inner cylinder. By means of the main body assembly and the ash removal assembly, gas enters the umbrella-shaped piece through the inlet pipeline, flue gas containing fly ash passes through the air outlet hole, is filtered for the first time, enters the water bath filter pipe, advances along the winding water bath filter pipe under the action of original external force and is continuously filtered, and the dust removal effect is improved. The problem that the filtering and dust removing effects are not ideal enough due to the fact that the flow speed of the waste gas is too high during physical filtering in an existing scheme is solved.

Description

Technical Field

[0001] This utility model relates to the field of waste treatment technology, specifically a device for treating fly ash from municipal solid waste incineration. Background Technology

[0002] Waste is solid waste generated in human daily life and production. The most widely used waste treatment methods today are sanitary landfill, high-temperature composting, and incineration. During the waste incineration process, a large amount of suspended fly ash is generated, so it is necessary to use waste incineration fly ash treatment equipment to filter these suspended solids.

[0003] Existing fly ash is mostly too complex in composition, containing not only various heavy metals but also many toxic substances. Single ash removal methods are no longer sufficient to completely remove fly ash from exhaust gases. Now, an extremely complex industrial ash removal process is needed, which cleans the fly ash through a combination of physical and chemical ash removal. In the process of physical ash removal, water filtration and spraying are mostly used for ash removal. However, the existing water filtration is not ideal because the flow rate of gas carrying fly ash through the water is too fast. At the same time, the spraying ash removal process does not have water recycling equipment, which is quite wasteful of water resources.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a fly ash treatment device for municipal solid waste incineration. Through its main component and ash removal component, this utility model solves the problem that the filtration and ash removal effect is not ideal in existing solutions due to excessively high exhaust gas velocity during physical filtration.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0007] A municipal solid waste incineration fly ash treatment device includes a main component and an ash removal component. The main component includes a base, on which an outer cylinder is fixed. An inner cylinder is disposed within the inner cavity of the outer cylinder. The main component also includes an inlet pipe that penetrates the side wall of the outer cylinder and the top of the inner cylinder. An umbrella-shaped component is fixedly attached to one end of the inlet pipe extending into the inner cylinder, and the umbrella-shaped component has an air outlet. A water bath filter pipe is also connected to the top of the outer cylinder, and the other end of the water bath filter pipe communicates with the inner cavity of the outer cylinder. The outer cylinder has a peripheral side... An exhaust pipe is fixedly installed at the top, and a water inlet pipe is also fixedly installed through the bottom of the outer cylinder's circumferential side. A dust removal assembly is also provided on the outer cylinder. The dust removal assembly includes a fixing member rotatably connected to the top of the inner circumferential side of the outer cylinder. An annular water pipe is fixed at the center of the fixing member. A water mist nozzle is fixedly installed through the outer circumference of the annular water pipe. A water pump and a filter are also fixed on the base. The dust removal assembly also includes a circulating water pipe. The outer cylinder, the filter, the water pump, and the water mist nozzle are sequentially connected through the circulating water pipe.

[0008] Preferably, the bottom end of the inner cylinder and the inner cavity of the outer cylinder are in communication.

[0009] Preferably, the cross-section of the water bath filter tube is S-shaped.

[0010] Preferably, the inlet pipe is arranged in a Z-shape.

[0011] Preferably, the outer peripheral surface of the umbrella-shaped component is an inverted cone shape.

[0012] Preferably, both the air outlet and the water mist nozzle are provided with a plurality of holes.

[0013] Preferably, the top of the outer cylinder is sloped.

[0014] Preferably, the dust removal assembly further includes a motor fixed to the top of the outer cylinder, the motor drive shaft is fixed with a bevel gear, the outer peripheral side of the protruding part of the fixing member is also provided with a bevel gear ring adapted to the bevel gear, and multiple cleaning scrapers are also fixed on the fixing member.

[0015] Compared with the prior art, this utility model provides a device for treating fly ash from municipal solid waste incineration, which has the following beneficial effects:

[0016] 1. This utility model, through its main component and ash removal component, allows for the addition of a certain amount of water into the outer cylinder via the water inlet pipe during use. The system connects to the waste incineration equipment via the inlet pipe, and the gas enters the umbrella-shaped component through the inlet pipe. The flue gas containing fly ash passes through the outlet hole, where it undergoes its first filtration. It then enters the water bath filter pipe, where it travels along the winding water bath filter pipe under external force, continuously undergoing filtration. Finally, it re-enters the inner cavity of the outer cylinder and is rinsed by water mist nozzles. This solves the problem in existing solutions where the high exhaust gas velocity during physical filtration results in insufficient ash removal efficiency.

[0017] 2. This utility model, through its dust removal component, also includes a motor. The motor drives the fixing component to rotate via a bevel gear, thereby rotating the annular water pipe and the water mist nozzle. This further improves the quality of the water mist spraying for dust removal. Simultaneously, the fixing component is equipped with a cleaning scraper. As the fixing component rotates, the cleaning scraper scrapes off the fly ash sprayed onto the inner wall of the outer cylinder by the water mist nozzle, causing it to fall onto the water surface inside the outer cylinder. This dust can then be discharged or cleaned during water draining through the inlet pipe or filtration through the filter. This solves the problem in the previous solutions where dust adhered to the side wall of the device after the final water mist spraying, making subsequent cleaning difficult. Furthermore, the rotation of the water mist nozzle further improves the cleaning quality.

[0018] 3. This utility model, through its ash removal component, uses a water pump to circulate and reuse the water used to filter fly ash within the device, greatly improving the utilization rate of water resources and solving the problem of excessive wastewater in traditional water mist nozzle fly ash removal methods. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the internal structure of the outer cylinder of this utility model;

[0020] Figure 2 for Figure 1 Enlarged structural diagram of the A-section structure;

[0021] Figure 3 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the internal structure of the outer and inner cylinders of this utility model in two cross sections.

[0023] In the picture:

[0024] 1. Main body component; 11. Base; 12. Outer cylinder; 121. Inner cylinder; 13. Inlet pipe; 14. Umbrella-shaped component; 141. Air outlet; 15. Water bath filter pipe; 16. Exhaust pipe; 17. Water inlet pipe;

[0025] 2. Ash removal components; 21. Circular water pipe; 211. Water mist nozzle; 22. Fixture; 23. Cleaning scraper; 24. Circulating water pipe; 25. Motor; 26. Bevel gear; 261. Bevel gear ring; 27. Water pump; 28. Filter. Detailed Implementation

[0026] 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.

[0027] As described in the background section, there are shortcomings in the existing technology. In order to solve the above-mentioned technical problems, this application proposes a municipal solid waste incineration fly ash treatment device.

[0028] Please see Figure 1 - Figure 4 A municipal solid waste incineration fly ash treatment device includes a main component 1 and an ash removal component 2. The main component 1 includes a base 11, on which an outer cylinder 12 is fixed. An inner cylinder 121 is disposed within the inner cavity of the outer cylinder 12. The main component 1 also includes an inlet pipe 13, which penetrates the side wall of the outer cylinder 12 and the top end of the inner cylinder 121. One end of the inlet pipe 13 extending into the inner cylinder 121 is fixedly connected to an umbrella-shaped component 14, which has an air outlet 141. A water bath filter pipe 15 is also connected to the top end of the outer cylinder 12, and the other end of the water bath filter pipe 15 communicates with the inner cavity of the outer cylinder 12. The outer cylinder 12 is surrounded by... An exhaust pipe 16 is fixedly installed through the top of the side, and a water inlet pipe 17 is also fixedly installed through the bottom of the side of the outer cylinder 12. A dust removal assembly 2 is also provided on the outer cylinder 12. The dust removal assembly 2 includes a fixing member 22 rotatably connected to the top of the inner side of the outer cylinder 12. An annular water pipe 21 is fixed at the center of the fixing member 22. A water mist nozzle 211 is fixedly installed through the outer side of the annular water pipe 21. A water pump 27 and a filter 28 are also fixed on the base 11. The dust removal assembly 2 also includes a circulating water pipe 24. The outer cylinder 12, the filter 28, the water pump 27 and the water mist nozzle 211 are sequentially connected through the circulating water pipe 24.

[0029] When using this device, a certain amount of water is added to the outer cylinder 12 through the water inlet pipe 17. The water added to the outer cylinder 12 should be approximately two-thirds full above the water bath filter pipe 15. The inlet pipe 13 is then connected to the waste incineration equipment for exhaust. First, the gas enters the umbrella-shaped component 14 through the inlet pipe 13. The umbrella-shaped component 14 has an exhaust hole 141. The flue gas containing fly ash passes through the exhaust hole 141 and undergoes the first filtration. It floats up under the action of buoyancy and enters the water bath filter pipe 15. Under the action of external force, it travels along the winding water bath filter pipe 15 and is continuously filtered. The optimal level is when the water level inside the device is two-thirds of the height of the water bath filter pipe 15. After repeated filtration through the water bath filter pipe 15, it re-enters the inner cavity of the outer cylinder 12. During this period, it is finally rinsed by the water mist nozzle 211 to achieve physical filtration. Finally, it is discharged from the exhaust pipe 16, completing the physical cleaning of the fly ash, and then proceeds to the subsequent processing steps.

[0030] Furthermore, the bottom end of the inner cylinder 121 is connected to the inner cavity of the outer cylinder 12, so that the filtered water in the inner cylinder 121 and the filtered water in the outer cylinder 12 can be interconnected and form a circulation.

[0031] Furthermore, the cross-section of the water bath filter pipe 15 is S-shaped; the exhaust gas carrying a large amount of fly ash enters the device, and after passing through the water bath filter pipe 15, it will be repeatedly washed to filter out the fly ash.

[0032] Furthermore, the inlet pipe 13 is arranged in a Z-shape, with the highest point of the inlet pipe 13 being higher than the liquid level of the filtered water in the device, so that the filtered water will not flow back into the inlet pipe 13 when the device is not in use.

[0033] Furthermore, the outer peripheral surface of the umbrella-shaped component 14 is inverted conical, which allows the exhaust gas and fly ash coming out of the air outlet 141 below the umbrella-shaped component 14 to rise along the outer peripheral surface until they flow into the water bath filter pipe 15 for repeated filtration.

[0034] Furthermore, both the air outlet 141 and the water mist nozzle 211 are provided with a plurality of outlets. The plurality of air outlets 141 can allow the gas to diffuse and be discharged more evenly and prevent the gas from being too concentrated, which would result in an unsatisfactory filtration effect. The plurality of water mist nozzles 211 can improve the quality of water mist filtration.

[0035] Furthermore, the top of the outer cylinder 12 is sloped, which allows the gas after filtering fly ash to be discharged more effectively from the exhaust pipe 16.

[0036] Furthermore, the dust removal assembly 2 also includes a motor 25 fixed to the top of the outer cylinder 12. The motor 25 has a bevel gear 26 fixed to its power shaft. The outer peripheral side of the part of the fixing member 22 that protrudes from the outer cylinder 12 is also provided with a bevel gear ring 261 that is adapted to the bevel gear 26. Multiple cleaning scrapers 23 are also fixed on the fixing member 22.

[0037] The motor 25 drives the fixing member 22 to rotate via the bevel gear 26, thereby driving the annular water pipe 21 and the water mist nozzle 211 to rotate. This further improves the quality of water mist spraying and dust removal by the water mist nozzle 211. At the same time, the fixing member 22 is also equipped with a cleaning scraper 23. When the fixing member 22 rotates, the cleaning scraper 23 scrapes the fly ash sprayed onto the inner wall of the outer cylinder 12 by the water mist nozzle 211, causing it to fall onto the water surface inside the outer cylinder 12. It can then be discharged or cleaned when water is discharged through the water inlet pipe 17 or filtered by the filter 28.

[0038] Working Principle: When using this device, a certain amount of water is added to the outer cylinder 12 through the water inlet pipe 17. The water added to the outer cylinder 12 should be approximately two-thirds full above the water bath filter pipe 15. The inlet pipe 13 is then connected to the waste incineration equipment for exhaust. First, the gas enters the umbrella-shaped component 14 through the inlet pipe 13. The umbrella-shaped component 14 has an outlet hole 141. The flue gas containing fly ash passes through the outlet hole 141 and undergoes the first filtration. It will float up under the action of buoyancy and enter the water bath filter pipe 15. Under the action of external force, it travels along the winding water bath filter pipe 15 and is continuously filtered. The optimal water level inside the device is two-thirds of the height of the water bath filter pipe 15. After repeated filtration through the water bath filter pipe 15, it re-enters the inner cavity of the outer cylinder 12, where it is finally rinsed by the water mist nozzle 211. The device achieves physical filtration and ultimately discharges the fly ash through the exhaust pipe 16, completing the physical cleaning of fly ash before proceeding to subsequent processing steps. Simultaneously, the device is equipped with a motor 25, which drives the fixed component 22 to rotate via a bevel gear 26. This, in turn, drives the annular water pipe 21 and water mist nozzles 211 to rotate, further enhancing the fly ash removal quality through water mist spraying from the nozzles 211. Additionally, the fixed component 22 is equipped with a cleaning scraper 23. As the fixed component 22 rotates, the cleaning scraper 23 scrapes the fly ash sprayed onto the inner wall of the outer cylinder 12 by the water mist nozzles 211, causing it to fall onto the water surface inside the outer cylinder 12. This fly ash can then be discharged or cleaned through the water inlet pipe 17 or during filtration by the filter 28. Furthermore, the device utilizes a water pump 27 to circulate and flush the water used for filtering fly ash throughout the device, significantly improving water resource utilization.

[0039] 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 device for treating fly ash from municipal solid waste incineration, comprising a main component (1) and an ash removal component (2), characterized in that: The main component (1) includes a base (11), an outer cylinder (12) is fixed on the base (11), an inner cylinder (121) is provided in the inner cavity of the outer cylinder (12), the main component (1) also includes an inlet pipe (13), the inlet pipe (13) penetrates the side wall of the outer cylinder (12) and the top end of the inner cylinder (121), an umbrella-shaped component (14) is fixed through one end of the inlet pipe (13) into the inner cylinder (121), and an air outlet (141) is provided on the umbrella-shaped component (14); a water bath filter pipe (15) is also connected through the top end of the outer cylinder (12), the other end of the water bath filter pipe (15) is connected to the inner cavity of the outer cylinder (12), an exhaust pipe (16) is fixed through the top end of the peripheral side of the outer cylinder (12), and a water inlet pipe (17) is fixed through the bottom end of the peripheral side of the outer cylinder (12); The outer cylinder (12) is also provided with a dust removal component (2). The dust removal component (2) includes a fixing member (22) rotatably connected to the top of the inner circumferential side of the outer cylinder (12). A ring-shaped water pipe (21) is fixed at the center of the fixing member (22). A water mist nozzle (211) is fixed through the outer circumferential side of the ring-shaped water pipe (21). A water pump (27) and a filter (28) are also fixed on the base (11). The dust removal component (2) also includes a circulating water pipe (24). The outer cylinder (12), the filter (28), the water pump (27) and the water mist nozzle (211) are sequentially connected through the circulating water pipe (24).

2. The municipal solid waste incineration fly ash treatment device according to claim 1, characterized in that: The bottom end of the inner cylinder (121) is connected to the inner cavity of the outer cylinder (12).

3. The municipal solid waste incineration fly ash treatment device according to claim 1, characterized in that: The water bath filter tube (15) has an S-shaped cross-section.

4. The municipal solid waste incineration fly ash treatment device according to claim 1, characterized in that: The inlet pipe (13) is arranged in a Z-shape.

5. The municipal solid waste incineration fly ash treatment device according to claim 1, characterized in that: The outer peripheral surface of the umbrella-shaped component (14) is inverted conical.

6. The municipal solid waste incineration fly ash treatment device according to claim 1, characterized in that: Both the air outlet (141) and the water mist nozzle (211) are provided with a number of holes.

7. The municipal solid waste incineration fly ash treatment device according to claim 1, characterized in that: The top of the outer cylinder (12) is set at an angle.

8. The municipal solid waste incineration fly ash treatment device according to claim 1, characterized in that: The dust removal assembly (2) also includes a motor (25) fixed to the top of the outer cylinder (12). The motor (25) has a bevel gear (26) fixed to its power shaft. The outer circumferential side of the part of the fixing member (22) protruding from the outer cylinder (12) is also provided with a bevel gear ring (261) that is compatible with the bevel gear (26). Multiple cleaning scrapers (23) are also fixed on the fixing member (22).

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