A furnace tail gas waste heat recovery and reuse device
By designing a movable thermal energy conversion device and adsorbent filling block, combining a water pump and a nozzle for flue gas filtration and purification, and achieving convenient maintenance of the thermal energy conversion device, the problem of easy corrosion and maintenance difficulties in the existing equipment is solved, and the performance and maintenance of the equipment are improved.
Patent Information
- Application Number
- CN202420653706.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-01
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2034-04-01
AI Technical Summary
The thermal energy conversion device of the existing furnace exhaust heat recovery equipment is prone to corrosion and difficult to maintain. At the same time, the lack of flue gas purification device has led to an increase in space occupation.
A furnace exhaust exhaust heat recovery and reuse equipment is designed, using a movable thermal energy conversion device and adsorbent filling block, combining a water pump and a nozzle for flue gas filtration and purification, and the heat energy conversion device is conveniently inspected and repaired through tension blocks and fixed pins.
It effectively prevents the corrosion of impurities in the flue gas from the heat energy conversion device, simplifies the maintenance process of the equipment, and improves the overall performance of the equipment through flue gas filtration and purification.
Smart Images
Figure CN222718694U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of furnace tail gas treatment, in particular to a furnace tail gas waste heat recovery and reuse device. Background Art
[0002] It plays an important role in the ferroalloy smelting process. It is mainly formed by the reaction of coke and ore. It is a toxic and harmful greenhouse gas. Its main components include carbon monoxide, hydrogen, methane, carbon dioxide and other gases. Therefore, the tail gas of the submerged arc furnace contains rich chemical energy and thermal energy.
[0003] The existing waste heat recovery equipment for furnace tail gas has a heat conversion device fixed inside the equipment. Since the flue gas may contain chemical substances, the heat conversion device may be corroded. However, the fact that it is fixed inside makes maintenance difficult. At the same time, since it does not have a flue gas purification device, it needs to be connected to a flue gas purification device. The two devices increase the space occupied. Summary of the invention
[0004] In view of the deficiencies in the prior art, the utility model provides a furnace tail gas waste heat recovery and reuse device, which has the advantages of filtering flue gas and being easy to repair, and solves the problems raised by the above-mentioned background technology.
[0005] The utility model provides the following technical solutions: a furnace tail gas waste heat recovery and reuse device, comprising a shell, the outer walls of the shell are respectively fixedly installed with a smoke inlet and a fixed shell, the top of the shell is fixedly installed with a heat collection device, the top of the fixed shell is fixedly installed with a water tank, the side of the fixed shell away from the shell is respectively fixedly installed with a smoke outlet and a water outlet, the inner wall of the fixed shell is respectively fixedly installed with an adsorbent filling block and a partition, the inner wall of the water tank is fixedly installed with a water pump, the output port of the water pump is fixedly installed with a nozzle, the inner wall of the shell is fixedly installed with a mounting frame, the inner wall of the mounting frame is slidably connected with a heat energy conversion device, the outer wall of the heat energy conversion device is fixedly installed with a fixing block and a handle, the inner wall of the shell is fixedly provided with a spring, the inner wall of the shell is slidably connected with a fixing pin, and the outer wall of the fixing pin is fixedly installed with a tension block.
[0006] As a preferred technical solution of the utility model, a circular groove is provided on the side of the partition close to the adsorbent filling block, and the circular groove penetrates the partition.
[0007] As a preferred technical solution of the utility model, the nozzle penetrates the outer wall of the fixed shell, and the spray end of the nozzle is located inside the fixed shell.
[0008] As a preferred technical solution of the utility model, the inner wall of the mounting frame is provided with two extension pieces, and the two extension pieces are located on both sides of the thermal energy conversion device.
[0009] As a preferred technical solution of the utility model, a circular groove is provided on the outer wall of the fixing block, and the diameter of the circular groove is the same as the diameter of the fixing pin.
[0010] As a preferred technical solution of the utility model, the tension block is located outside the shell, and the tension block penetrates the outer wall of the shell and is connected with the fixing pin.
[0011] As a preferred technical solution of the utility model,
[0012] Compared with the prior art, the utility model has the following beneficial effects:
[0013] 1. The waste heat recovery and reuse equipment of the furnace tail gas reaches the inside of the fixed shell through the flue gas, so that the flue gas passes through the adsorbent filling block to the side of the partition close to the adsorbent filling block. When the flue gas passes through the adsorbent filling block, the adsorbent filling block attaches to the impurities attached to the flue gas. At this time, the flue gas passes through the circular groove opened on the outer wall of the partition to reach the side of the partition away from the adsorbent filling block. At this time, the water pump is started, and the water pump sprays the liquid in the water tank through the nozzle to spray the flue gas, so that the sprayed flue gas is discharged through the smoke outlet, and the sprayed liquid is discharged from the water outlet.
[0014] 2. The waste heat recovery and reuse equipment of the furnace tail gas drives the fixing pin to move by pulling the tension block, so that the fixing pin moves in the direction of the spring and compresses the spring at the same time. At this time, the fixing pin is separated from the fixing block. At this time, the handle is pulled, and the handle drives the heat energy conversion device to move inside the mounting frame, and the heat energy conversion device is taken out from the inside of the shell, so as to inspect and repair the heat energy conversion device. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;
[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;
[0017] Figure 3 This is a schematic diagram of the structure of the mounting frame of the utility model;
[0018] Figure 4 This is a schematic diagram of the cross-sectional structure of the shell of the utility model;
[0019] Figure 5 For this utility model Figure 4 Enlarged structural diagram at A in the middle.
[0020] In the figure: 1. shell; 2. smoke inlet; 3. heat collection device; 4. fixed shell; 5. water tank; 6. smoke outlet; 7. adsorbent filling block; 8. partition; 9. water pump; 10. nozzle; 11. mounting frame; 12. heat energy conversion device; 13. fixing block; 14. handle; 15. fixing pin; 16. spring; 17. tension block; 18. water outlet. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0022] See also Figure 1-5 A device for recovering and reusing waste heat from furnace tail gas comprises a shell 1, a smoke inlet 2 and a fixed shell 4 are fixedly installed on the outer wall of the shell 1, a heat collecting device 3 is fixedly installed on the top of the shell 1, a water tank 5 is fixedly installed on the top of the fixed shell 4, a smoke outlet 6 and a water outlet 18 are fixedly installed on the side of the fixed shell 4 away from the shell 1, an adsorbent filling block 7 and a partition 8 are fixedly installed on the inner wall of the fixed shell 4, a water pump 9 is fixedly installed on the inner wall of the water tank 5, and a nozzle 10 is fixedly installed on the output port of the water pump 9, a mounting frame 11 is fixedly installed on the inner wall of the shell 1, a heat energy conversion device 12 is slidably connected to the inner wall of the mounting frame 11, a fixing block 13 and a handle 14 are fixedly installed on the outer wall of the heat energy conversion device 12, and the shell A spring 16 is fixedly provided on the inner wall of the shell 1, a fixing pin 15 is slidably connected to the inner wall of the shell 1, and a tension block 17 is fixedly installed on the outer wall of the fixing pin 15. In the above structure, there are two mounting frames 11 and heat conversion devices 12, and the two mounting frames 11 and heat conversion devices 12 are staggered and distributed on the upper and lower sides of the inner wall of the shell 1, so that after the smoke enters the interior of the shell 1 from the smoke inlet 2, it reaches the outside of a heat conversion device 12 close to the smoke inlet 2, so that the heat conversion device 12 absorbs the heat in the smoke, and the smoke moves from the bottom of the mounting frame 11 to the heat conversion device 12 far from the smoke inlet 2, and the second heat conversion device 12 absorbs the heat in the smoke for a second time.
[0023] In a preferred embodiment, a circular groove is provided on the side of the partition 8 close to the adsorbent filling block 7, and the circular groove passes through the partition 8. In the above structure, when the flue gas reaches the inside of the fixed shell 4 from the inside of the shell 1, the flue gas passes through the adsorbent filling block 7, and the adsorbent filling block 7 adsorbs the attachments in the flue gas, so that the flue gas reaches the other side of the adsorbent filling block 7. When the flue gas reaches the side of the adsorbent filling block 7 located on the partition 8, it passes through the circular groove provided on the outer wall of the partition 8 to reach the side of the partition 8 far from the adsorbent filling block 7.
[0024] In a preferred embodiment, the nozzle 10 penetrates the outer wall of the fixed shell 4, and the spraying end of the nozzle 10 is located inside the fixed shell 4. In the above structure, when the smoke reaches the side of the partition 8 away from the adsorbent filling block 7, the water pump 9 starts to work, so that the water pump 9 absorbs the liquid in the water tank 5 and sprays it out through the nozzle 10, so that the smoke is sprayed for the second time, and the smoke after spraying is discharged through the smoke outlet 6, and the liquid is discharged through the water outlet 18.
[0025] In a preferred embodiment, the inner wall of the mounting frame 11 is provided with two extension plates, and the two extension plates are located on both sides of the thermal energy conversion device 12. In the above structure, the thermal energy conversion device 12 is fixed by the two extension plates inside the mounting frame 11, so that the thermal energy conversion device 12 will not tilt inside the mounting frame 11.
[0026] In a preferred embodiment, a circular groove is provided on the outer wall of the fixing block 13, and the diameter of the circular groove is the same as the diameter of the fixing pin 15. In the above structure, the fixing block 13 is fixed by the fixing pin 15 by inserting the fixing pin 15 into the circular groove provided on the outer wall of the fixing block 13, thereby fixing the mounting frame 11.
[0027] In a preferred embodiment, the tension block 17 is located outside the shell 1, and the tension block 17 penetrates the outer wall of the shell 1 and is connected to the fixing pin 15. In the above structure, by pulling the tension block 17, the tension block 17 drives the fixing pin 15 to move in the direction of the spring 16, so that the fixing pin 15 moves toward the spring 16.
[0028] Working principle: when the device is needed, the smoke inlet 2 is sleeved on the outside of the exhaust port. When the exhaust port discharges smoke into the smoke inlet 2, it reaches the outside of a heat conversion device 12 close to the smoke inlet 2, so that the heat conversion device 12 absorbs the heat in the smoke. The smoke moves from the bottom of the mounting frame 11 to the heat conversion device 12 far from the smoke inlet 2. The second heat conversion device 12 absorbs the heat in the smoke for a second time. The heat absorbed by the heat conversion device 12 is transmitted to the heat collection device 3. The heat collection device 3 distributes the heat energy. When the smoke reaches the inside of the fixed shell 4 from the inside of the shell 1, the smoke passes through the adsorbent filling block 7. The adsorbent filling block 7 adsorbs the attachments in the smoke, so that the smoke reaches the other side of the adsorbent filling block 7. When the smoke reaches the side of the adsorbent filling block 7 close to the partition 8, the smoke passes through the adsorbent filling block 7. The smoke reaches the side of the partition 8 away from the adsorbent filling block 7 through the circular groove provided on the outer wall of the partition 8. When the smoke reaches the side of the partition 8 away from the adsorbent filling block 7, the water pump 9 starts to work, so that the water pump 9 absorbs the liquid in the water tank 5 and sprays it out from the nozzle 10, so that the smoke is sprayed twice. The smoke after spraying is discharged through the smoke outlet 6, and the liquid is discharged through the water outlet 18, so that the smoke is filtered and discharged. When the heat energy conversion device 12 needs to be repaired, by pulling the tension block 17, the tension block 17 drives the fixing pin 15 to move in the direction of the spring 16, so that the fixing pin 15 is disengaged from the circular groove provided on the outer wall of the fixing block 13, and the spring 16 is compressed at the same time. At this time, the handle 14 is pulled, and the handle 14 drives the heat energy conversion device 12 to move inside the mounting frame 11, and the heat energy conversion device 12 is taken out from the mounting frame 11 for repair.
[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A furnace tail gas waste heat recovery and reuse device, comprising a housing (1), characterized in that: The outer wall of the shell (1) is respectively fixedly mounted with a smoke inlet (2) and a fixed shell (4); the top of the shell (1) is respectively fixedly mounted with a heat collection device (3); the top of the fixed shell (4) is respectively fixedly mounted with a water tank (5); a smoke outlet (6) and a water outlet (18) are respectively fixedly mounted on a side of the fixed shell (4) away from the shell (1); an adsorbent filling block (7) and a partition (8) are respectively fixedly mounted on the inner wall of the fixed shell (4); a water pump (9) is respectively fixedly mounted on the inner wall of the water tank (5); A nozzle (10) is fixedly mounted on the output port of the water pump (9); a mounting frame (11) is fixedly mounted on the inner wall of the housing (1); a heat energy conversion device (12) is slidably connected to the inner wall of the mounting frame (11); a fixing block (13) and a handle (14) are fixedly mounted on the outer wall of the heat energy conversion device (12); a spring (16) is fixedly mounted on the inner wall of the housing (1); a fixing pin (15) is slidably connected to the inner wall of the housing (1); and a tension block (17) is fixedly mounted on the outer wall of the fixing pin (15).
2. The furnace tail gas waste heat recovery and reuse equipment according to claim 1 is characterized in that: The partition plate (8) is provided with a circular groove on one side close to the adsorbent filling block (7), and the circular groove penetrates the partition plate (8).
3. The furnace tail gas waste heat recovery and reuse equipment according to claim 1 is characterized in that: The spray head (10) penetrates the outer wall of the fixed shell (4), and the spray end of the spray head (10) is located inside the fixed shell (4).
4. The furnace tail gas waste heat recovery and reuse equipment according to claim 1 is characterized in that: The inner wall of the mounting frame (11) is provided with two extension pieces, and the two extension pieces are located on both sides of the heat energy conversion device (12).
5. The furnace tail gas waste heat recovery and reuse equipment according to claim 1 is characterized in that: A circular groove is formed on the outer wall of the fixing block (13), and the diameter of the circular groove is the same as the diameter of the fixing pin (15).
6. The furnace tail gas waste heat recovery and reuse equipment according to claim 1 is characterized in that: The tension block (17) is located outside the housing (1), and the tension block (17) penetrates the outer wall of the housing (1) and is connected to the fixing pin (15).