Hazardous waste incineration flue gas waste heat recovery system

Abstract

The utility model provides a hazardous waste incineration flue gas waste heat recovery system, which relates to the technical field of waste heat recovery, and comprises a bottom shell, a flue gas treatment box and a waste heat recovery box, the top of the flue gas treatment box is fixedly provided with a flue gas inlet pipe, the interior of the waste heat recovery box is fixedly provided with a coiled pipe, and the coiled pipe is fixedly provided with a flue gas outlet pipe. And an air extracting pump is fixedly mounted at the top of the bottom shell. The smoke filtering function is achieved through the filter screen, the situation that unfiltered smoke is directly discharged to pollute the environment is effectively avoided, meanwhile, when the filter screen is blocked and needs to be cleaned, the sliding plate is pushed upwards to compress the spring so that the limiting plate can relieve limitation on the connecting plate, then the handle is pulled, and the connecting plate, the frame and the filter screen can be taken out in a sliding mode to be cleaned. The sliding plate is loosened, and the spring rebounds, so that the limiting plate is reset to limit the connecting plate, and due to the design, the filter screen can be quickly cleaned when being blocked, the flue gas treatment effect and efficiency are ensured, and equipment faults and performance reduction caused by blockage are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of waste heat recovery, in particular to a hazardous waste incineration flue gas waste heat recovery system. Background Art

[0002] The PTA production process generates a large amount of residue, which contains a certain amount of cobalt oxide. my country's annual PTA production is huge, and the corresponding cobalt oxide content in the residue is considerable. If it is not recycled, it will not only result in a significant waste of resources but also increase the raw material cost of PTA production. Currently, during treatment, hazardous waste (including PTA residue) is placed in an incinerator for high-temperature incineration. During this process, the organic matter in the waste is decomposed, and metal substances such as cobalt oxide exist in the flue gas in a specific chemical form at high temperatures. The high-temperature flue gas generated by incineration enters the waste heat recovery device, which transfers the heat in the flue gas to the working medium (such as water, air, etc.), causing the working medium to heat up. The heated working medium can then be used in other processes such as heating, power generation, and heating in industrial production.

[0003] Currently, traditional waste heat recovery devices do not have a filtering structure for flue gas, and the unfiltered flue gas contains a large amount of dust, particulate matter and corrosive substances. If directly discharged, it will cause pollution to the environment, so it needs to be improved. Summary of the Invention

[0004] The purpose of the utility model is to solve the problem in the prior art that the waste heat recovery device cannot filter the flue gas, and to propose a waste heat recovery system for hazardous waste incineration flue gas.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a waste heat recovery system for the flue gas from the incineration of hazardous waste, comprising a bottom shell, a flue gas treatment box and a waste heat recovery box, a flue gas inlet pipe is fixedly installed on the top of the flue gas treatment box, a serpentine pipe is fixedly installed inside the waste heat recovery box, an air pump is fixedly installed on the top of the bottom shell, a connecting pipe is fixedly installed on the input end of the air pump, a water inlet pipe is fixedly installed on the top of the waste heat recovery box, a solenoid valve is fixedly installed on the outer wall of the water inlet pipe, a drain pipe is fixedly installed on one side of the waste heat recovery box, and the outer wall of the drain pipe is fixedly installed There is a second solenoid valve, a slide groove is provided on one side of the flue gas treatment box, a card groove is provided on the side of the flue gas treatment box close to the slide groove, the inside of the slide groove is slidably connected to a frame, a filter is fixedly installed on the inside of the frame, a connecting plate is fixedly installed on the side of the frame away from the slide groove, a handle is fixedly installed on the side of the connecting plate away from the frame, a C-shaped frame is fixedly installed on the side of the flue gas treatment box close to the slide groove, a guide column is fixedly installed on the inside of the C-shaped frame, the outer wall of the guide column is slidably connected to a slide plate, a limit plate is symmetrically fixedly installed on the bottom of the slide plate, and a spring is provided on the outer wall of the guide column.

[0006] Preferably, the output end of the air pump is fixedly connected to the serpentine tube, and the connecting plate is slidably connected to the slot.

[0007] Preferably, a sealing groove is formed on the inner surface of the card slot, and a sealing gasket is fixedly mounted on a side of the connecting plate away from the handle, and the sealing gasket is slidably connected to the sealing groove.

[0008] Preferably, one end of the spring is fixedly connected to the slide plate, and the other end of the spring is fixedly connected to the C-shaped frame.

[0009] Preferably, the slide plate is slidably connected to the C-shaped frame, the limit plate is slidably connected to the connecting plate, and the flue gas treatment box and the waste heat recovery box are both fixedly connected to the bottom shell.

[0010] Preferably, a fixing plate is fixedly installed on the inner side of the bottom of the bottom shell, a limiting column is fixedly installed on the top of the fixing plate, a driving motor is fixedly installed on the top of the bottom shell, a threaded rod is fixedly installed on the output end of the driving motor, a sliding plate is threadedly connected to the outer wall of the threaded rod, and moving wheels are symmetrically fixedly installed on the bottom of the sliding plate.

[0011] Preferably, the top end of the limiting column is fixedly connected to the bottom shell, the bottom end of the threaded rod is rotationally connected to the fixed plate, and the sliding plate is slidingly connected to the limiting column.

[0012] Compared with the prior art, the advantages and positive effects of the present invention are:

[0013] 1. In the utility model, the filtering function of the flue gas is realized by the filter screen, which effectively avoids the direct discharge of unfiltered flue gas to pollute the environment. At the same time, when the filter screen is clogged and needs to be cleaned, the slide plate is pushed upward to compress the spring so that the limit plate releases the restriction on the connecting plate, and then the handle is pulled to slide the connecting plate, frame and filter screen out for cleaning. After cleaning, they are reset, the slide plate is released, and the spring rebounds to reset the limit plate to restrict the connecting plate. This design can quickly clean the filter screen when it is clogged, ensure the effect and efficiency of flue gas treatment, and reduce equipment failure and performance degradation caused by blockage.

[0014] 2. In the present invention, the driving motor drives the threaded rod to move the sliding plate along the limit column, thereby controlling the moving wheel to extend or retract the bottom shell, which makes it easy to move the equipment to a new position to adapt to layout changes and avoids the use of other handling equipment when moving the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model proposes a schematic diagram of the overall structure of a hazardous waste incineration flue gas waste heat recovery system;

[0016] Figure 2 This is a schematic diagram of a cross-sectional view of a hazardous waste incineration flue gas waste heat recovery system proposed in the utility model;

[0017] Figure 3 This is a side structural diagram of a hazardous waste incineration flue gas waste heat recovery system proposed in the utility model;

[0018] Figure 4 This utility model proposes a hazardous waste incineration flue gas waste heat recovery system Figure 3 Enlarged view of point A in the middle;

[0019] Figure 5 This is a partial structural diagram of a hazardous waste incineration flue gas waste heat recovery system proposed in the utility model;

[0020] Figure 6 The utility model provides a schematic diagram of a cross-sectional view of the structure of a hazardous waste incineration flue gas waste heat recovery system when viewed from above.

[0021] Legend: 1. Bottom shell; 2. Flue gas treatment box; 3. Waste heat recovery box; 4. Flue gas inlet pipe; 5. Serpentine pipe; 6. Vacuum pump; 7. Connecting pipe; 8. Water inlet pipe; 9. Solenoid valve 1; 10. Drain pipe; 11. Solenoid valve 2; 12. Slide; 13. Card slot; 14. Frame; 15. Filter; 16. Connecting plate; 17. Handle; 18. Sealing gasket; 19. Sealing groove; 20. C-type frame; 21. Guide column; 22. Slide plate; 23. Limit plate; 24. Spring; 25. Fixed plate; 26. Limit column; 27. Drive motor; 28. Threaded rod; 29. ​​Sliding plate; 30. Moving wheel. DETAILED DESCRIPTION

[0022] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0024] Example 1: Figure 1-Figure 5As shown, the utility model provides a technical solution: a waste heat recovery system for the incineration of hazardous waste flue gas, comprising a bottom shell 1, a flue gas treatment box 2 and a waste heat recovery box 3, a flue gas inlet pipe 4 is fixedly installed on the top of the flue gas treatment box 2, a serpentine pipe 5 is fixedly installed inside the waste heat recovery box 3, an air suction pump 6 is fixedly installed on the top of the bottom shell 1, and a connecting pipe 7 is fixedly installed on the input end of the air suction pump 6, a water inlet pipe 8 is fixedly installed on the top of the waste heat recovery box 3, and a solenoid valve 1 9 is fixedly installed on the outer wall of the water inlet pipe 8, a drain pipe 10 is fixedly installed on one side of the waste heat recovery box 3, and a solenoid valve 2 11 is fixedly installed on the outer wall of the drain pipe 10, a slide 12 is provided on one side of the flue gas treatment box 2, a card slot 13 is provided on the side of the flue gas treatment box 2 close to the slide 12, a frame 14 is slidably connected to the inside of the slide 12, a filter screen 15 is fixedly installed on the inside of the frame 14, a connecting plate 16 is fixedly installed on the side of the frame 14 away from the slide 12, and the connecting plate 16 is away from the frame A handle 17 is fixedly installed on one side of the frame 14, and a C-shaped frame 20 is fixedly installed on the side of the flue gas treatment box 2 near the slide groove 12. A guide column 21 is fixedly installed inside the C-shaped frame 20, and the outer wall of the guide column 21 is slidably connected with a slide plate 22. The bottom of the slide plate 22 is symmetrically fixedly installed with a limit plate 23. The outer wall of the guide column 21 is sleeved with a spring 24, and the output end of the air pump 6 is fixedly connected to the serpentine tube 5, and the connecting plate 16 is slidably connected with the slot 13. A sealing groove 19 is provided on the inner surface of the slot 13, and a sealing gasket 18 is fixedly installed on the side of the connecting plate 16 away from the handle 17. The sealing gasket 18 is slidably connected with the sealing groove 19, one end of the spring 24 is fixedly connected to the slide plate 22, and the other end of the spring 24 is fixedly connected to the C-shaped frame 20, the slide plate 22 is slidably connected to the C-shaped frame 20, the limit plate 23 is slidably connected to the connecting plate 16, and the flue gas treatment box 2 and the waste heat recovery box 3 are both fixedly connected to the bottom shell 1.

[0025] In this embodiment, the flue gas filtering function is achieved through the filter 15, which effectively avoids the direct discharge of unfiltered flue gas to pollute the environment. At the same time, when the filter 15 is blocked and needs to be cleaned, the slide plate 22 is pushed upward to compress the spring 24 so that the limit plate 23 releases the restriction on the connecting plate 16, and then the handle 17 is pulled to slide the connecting plate 16, the frame 14 and the filter 15 out for cleaning. After cleaning, they are reset, the slide plate 22 is released, and the spring 24 rebounds to reset the limit plate 23 to restrict the connecting plate 16. This design can quickly clean the filter 15 when it is blocked, thereby ensuring the effect and efficiency of flue gas treatment and reducing equipment failures and performance degradation caused by blockage.

[0026] Example 2: Figure 6As shown, a fixing plate 25 is fixedly installed on the inner side of the bottom of the bottom shell 1, a limiting column 26 is fixedly installed on the top of the fixing plate 25, a driving motor 27 is fixedly installed on the top of the bottom shell 1, a threaded rod 28 is fixedly installed on the output end of the driving motor 27, and a sliding plate 29 is threadedly connected to the outer wall of the threaded rod 28, and a moving wheel 30 is symmetrically fixedly installed on the bottom of the sliding plate 29, the top end of the limiting column 26 is fixedly connected to the bottom shell 1, the bottom end of the threaded rod 28 is rotatably connected to the fixed plate 25, and the sliding plate 29 is slidably connected to the limiting column 26.

[0027] In this embodiment, the threaded rod 28 is driven by the driving motor 27 to move the sliding plate 29 along the limiting column 26, thereby controlling the moving wheel 30 to extend or retract the bottom shell 1, which enables the device to be easily moved to a new position to adapt to layout changes and avoids the use of other transport equipment when moving the device.

[0028] The working principle of this embodiment: When in use, the high-temperature flue gas generated by the incineration of hazardous waste enters the flue gas treatment box 2 through the flue gas inlet pipe 4. The flue gas is first filtered through the filter 15 in the flue gas treatment box 2. Under the action of the vacuum pump 6, the filtered flue gas enters the serpentine 5 in the waste heat recovery box 3 from the flue gas treatment box 2 through the connecting pipe 7. After entering, the solenoid valve 1 9 is opened. After opening, cold water is injected into the waste heat recovery box 3 from the water inlet pipe 8. When the high-temperature flue gas flows in the serpentine 5, the heat is transferred to the water around the serpentine 5 through heat exchange, so that the water is heated. The hot water heated by heat exchange can be discharged from the drain pipe 10 by opening the solenoid valve 2 11. After the filter screen 15 is blocked and needs to be removed and cleaned, the slide plate 22 is first pushed upward so that the slide plate 22 slides upward along the outer wall of the guide column 21. The slide plate 22 will compress the spring 24 upward during the upward sliding process. After the compression is to a certain extent, the limit plate 23 at the bottom of the slide plate 22 will release the restriction of the connecting plate 16. After the restriction is released, the handle 17 is pulled again, and the handle 17 drives the connecting plate 16 to slide inside the slot 13. During the sliding process of the connecting plate 16, the frame 14 will slide inside the slide slot 12. During the sliding process of the frame 14, the filter screen 15 will move together. When the device needs to be moved, the drive motor 27 is started, and the drive motor 27 drives the threaded rod 28 to rotate. Since the sliding plate 29 is threadedly connected to the threaded rod 28 and is slidably connected to the limit column 26, the rotation of the threaded rod 28 will cause the sliding plate 29 to move up and down along the limit column 26. When the sliding plate 29 moves downward, it drives the moving wheel 30 to extend downward from the bottom shell 1, so that the equipment can be moved. When the equipment moves to the designated position, the drive motor 27 is reversed to move the sliding plate 29 upward and retract the moving wheel 30 into the bottom shell 1, so that the equipment is stably placed on the ground. This design can easily move the equipment to a new position to better adapt to changes in the overall layout, and effectively avoids the need to use other handling equipment when moving the equipment.

[0029] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A hazardous waste incineration flue gas waste heat recovery system, comprising a bottom shell (1), a flue gas treatment box (2) and a waste heat recovery box (3), characterized in that: A flue gas inlet pipe (4) is fixedly installed on the top of the flue gas treatment box (2), a serpentine pipe (5) is fixedly installed inside the waste heat recovery box (3), an air pump (6) is fixedly installed on the top of the bottom shell (1), and a connecting pipe (7) is fixedly installed on the input end of the air pump (6), a water inlet pipe (8) is fixedly installed on the top of the waste heat recovery box (3), and a solenoid valve 1 (9) is fixedly installed on the outer wall of the water inlet pipe (8), a drain pipe (10) is fixedly installed on one side of the waste heat recovery box (3), and a solenoid valve 2 (11) is fixedly installed on the outer wall of the drain pipe (10), a slide groove (12) is provided on one side of the flue gas treatment box (2), and a card is provided on the side of the flue gas treatment box (2) close to the slide groove (12). The flue gas treatment box (2) is provided with a C-shaped frame (20) fixedly mounted on the side close to the chute (12), a guide column (21) is fixedly mounted on the inside of the C-shaped frame (20), a slide plate (22) is slidably connected to the inside of the guide column (21), a limit plate (23) is symmetrically fixedly mounted on the bottom of the slide plate (22), and a spring (24) is provided on the outer wall of the guide column (21).

2. The hazardous waste incineration flue gas waste heat recovery system according to claim 1, characterized in that: The output end of the air pump (6) is fixedly connected to the serpentine tube (5), and the connecting plate (16) is slidably connected to the slot (13).

3. The hazardous waste incineration flue gas waste heat recovery system according to claim 1, characterized in that: A sealing groove (19) is provided on the inner surface of the card slot (13), and a sealing gasket (18) is fixedly mounted on the side of the connecting plate (16) away from the handle (17), and the sealing gasket (18) is slidably connected to the sealing groove (19).

4. The hazardous waste incineration flue gas waste heat recovery system according to claim 1, characterized in that: One end of the spring (24) is fixedly connected to the slide plate (22), and the other end of the spring (24) is fixedly connected to the C-shaped frame (20).

5. The hazardous waste incineration flue gas waste heat recovery system according to claim 1, characterized in that: The slide plate (22) is slidably connected to the C-shaped frame (20), the limit plate (23) is slidably connected to the connecting plate (16), and the flue gas treatment box (2) and the waste heat recovery box (3) are both fixedly connected to the bottom shell (1).

6. The hazardous waste incineration flue gas waste heat recovery system according to claim 1, characterized in that: A fixing plate (25) is fixedly mounted on the inner side of the bottom of the bottom shell (1), a limiting column (26) is fixedly mounted on the top of the fixing plate (25), a driving motor (27) is fixedly mounted on the top of the bottom shell (1), a threaded rod (28) is fixedly mounted on the output end of the driving motor (27), a sliding plate (29) is threadedly connected to the outer wall of the threaded rod (28), and a moving wheel (30) is symmetrically fixedly mounted on the bottom of the sliding plate (29).

7. The hazardous waste incineration flue gas waste heat recovery system according to claim 6, characterized in that: The top end of the limiting column (26) is fixedly connected to the bottom shell (1), the bottom end of the threaded rod (28) is rotationally connected to the fixed plate (25), and the sliding plate (29) is slidingly connected to the limiting column (26).

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