Salt bath furnace heating steam post-treatment device

Abstract

The present application belongs to the technical field of salt bath furnace, and particularly discloses a salt bath furnace heating steam post-treatment device, which comprises an adjusting cover and a fixing column, the inside of the fixing column is provided with an air cavity penetrating to the top, the adjusting cover is slidingly sleeved on the outer surface of the fixing column, and the top of the fixing column and the inner top surface of the adjusting cover are slidingly and sealingly matched, and the inner bottom surface of the air cavity is provided with a driving assembly, the toxic steam generated by the salt bath furnace is conveyed to the device for neutralization through the air inlet pipe, the toxic steam enters the air cavity through the air inlet at the bottom of the air inlet pipe in the conveying process, the steam is filtered through the filter cover in the air cavity, and the flowing steam triggers the driving assembly to clean the filtering surface of the filter cover, the filtered gas enters the neutralizing device for neutralization, and is discharged from the exhaust pipe after neutralization, and when the concentration of the neutralizing substance in the neutralizing device is low, the neutralizing substance is replaced through the blowdown adjusting element.

Description

Technical Field

[0001] This invention relates to the field of salt bath furnace technology, and more particularly to a post-treatment device for heating steam in a salt bath furnace. Background Technology

[0002] A salt bath furnace is an industrial furnace that uses molten salt solution as a heating medium to immerse workpieces in the salt solution for heating. Depending on the furnace's operating temperature, salts such as sodium chloride, potassium chloride, barium chloride, sodium cyanide, potassium cyanide, sodium nitrate, and potassium nitrate are usually selected as the heating medium. Salt bath furnaces have a fast heating speed and uniform temperature.

[0003] When using a salt bath furnace to process workpieces, the workpieces are constantly heated in the salt solution, and a layer of salt film adheres to the surface of the workpieces when they are taken out of the furnace. Therefore, it can prevent the surface of the workpieces from oxidizing and decarburizing. Salt bath furnaces can be used for heat treatment heating such as quenching, annealing, tempering, cyaniding, and aging of carbon steel, alloy steel, tool steel, die steel, and aluminum alloys. They can also be used for low-oxidation heating during precision forging of steel. However, the vapor of the heating medium in a salt bath furnace is harmful to the human body and can easily cause mild poisoning to operators in factory workshops. Summary of the Invention

[0004] In order to solve the problems existing in the prior art, the present invention provides a post-treatment device for steam heated by a salt bath furnace.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a steam post-treatment device for a salt bath furnace, comprising an adjusting hood and a fixed column, wherein the fixed column has an air cavity extending from the inside to the top, the adjusting hood is slidably fitted onto the outer surface of the fixed column, and the top of the fixed column is slidably and sealed to the inner top surface of the adjusting hood, a driving component is provided on the inner bottom surface of the air cavity, a central closing device is provided inside the fixed column, and a sewage discharge adjusting component is provided on the outer surface of the fixed column near the bottom edge;

[0006] The bottom of the fixed column is fixed with an air inlet head at the middle. Multiple air inlets are equidistantly opened at the bottom of the air inlet head along the circumferential direction, and one end of each air inlet penetrates to the bottom surface of the air chamber.

[0007] Preferably, the bottom of the fixed column is connected to the air intake pipe, and flange rings are fixed on the outer surface of the fixed column near the bottom edge and the outer surface of the air intake pipe near the top edge. The two flange rings are connected to each other, the bottom of the air intake head extends into the interior of the air intake pipe, and an annular groove is opened on the top of the flange ring on the fixed column. An opening is opened on one side of the inner wall of the annular groove, and the opening extends to the outside of the flange ring.

[0008] Preferably, the drive assembly includes a pole, which is fixed to the inner bottom surface of the air chamber and located in the middle of the air chamber. The outer surface of the pole is provided with annular limiting grooves near the top and bottom edges. An upper drive ring is rotatably arranged inside the annular limiting groove at the top of the pole, and a lower drive ring is rotatably arranged inside the annular limiting groove at the bottom of the pole.

[0009] Preferably, multiple connecting rods are fixed at equal intervals along the circumferential direction at the bottom of the upper drive ring, and the bottom of each connecting rod extends and is fixed to the top of the lower drive ring. The multiple connecting rods are arranged around the outer surface of the upright. Multiple vortex blades are fixed at equal intervals along the circumferential direction on the outer surface of the lower drive ring, and the multiple vortex blades are located above the air inlet.

[0010] Preferably, the inner wall of the air chamber is provided with a filter screen cover, and three side rods are fixed at equal intervals along the circumferential direction on the outer surface of the upper drive ring. One end of each of the three side rods extends to the top of the filter screen cover, and a scraper is fixed to the bottom of one end of each of the three side rods. One side of the outer surface of the multiple scrapers is in contact with the inner wall of the filter screen cover, and the bottom of the scraper extends to the bottom of the filter screen cover.

[0011] Preferably, the neutralizing device includes a neutralizing cavity, which is opened inside the fixed column. A buffer cavity is opened inside the fixed column near the inner edge. The neutralizing cavity is located below the buffer cavity. Multiple through holes are equidistantly opened on the inner wall of the buffer cavity along the circumferential direction. The multiple through holes all penetrate into the interior of the air cavity and are located on one side of the filter screen.

[0012] Preferably, the bottom surface of the buffer chamber has multiple drainage holes equidistantly arranged along the circumferential direction, the bottom surface of the neutralization chamber has multiple bridging holes equidistantly arranged along the circumferential direction, one end of each drainage hole is connected to the bottom of the bridging hole, the top surface of the neutralization chamber has multiple air guide holes equidistantly arranged along the circumferential direction, extending to the top of the fixed column, the top of the regulating cover is fixed with an exhaust pipe at the middle, the top surface of the regulating cover has multiple bending holes equidistantly arranged along the circumferential direction, one end of each bending hole is connected to the interior of the exhaust pipe, and the bottom of each bending hole is connected to the top of the air guide hole.

[0013] Preferably, the sewage regulating component includes an regulating ring. An annular opening is provided on the outer surface of the fixed column near the bottom edge. The annular opening is interconnected with multiple drainage holes. Multiple bridging holes are all connected to the inner top surface of the annular opening. The regulating ring is rotatably and sealingly connected to the inside of the annular opening. Multiple through holes are provided at equal intervals along the circumferential direction on the top of the regulating ring, which are connected to the bottom. The multiple drainage holes and bridging holes are all interconnected through the through holes.

[0014] Preferably, the top of the adjusting ring is fixed to the bottom of the adjusting cover near the edge of the outer surface, a rubber sleeve is fixed to the outer surface of the adjusting cover near the top edge, and multiple feeding pipes are fixed at equal intervals along the circumferential direction on the top of the adjusting cover. The bottom of each of the multiple feeding pipes is connected to the inner top surface of the adjusting cover, and each of the multiple feeding pipes is opposite to the air guide hole.

[0015] Preferably, the top of the adjusting ring is provided with multiple drain holes at equal intervals along the circumferential direction. One end of each drain hole extends through the outer surface of the adjusting ring and is located above the annular groove. The top of each drain hole is connected to the bridging hole. The feed pipe is located directly above the drain hole, and the bending hole is located directly above the through hole.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. In this invention, toxic vapors generated by a salt bath furnace are transported to this device through an air inlet pipe for neutralization. During the transport process, the toxic vapors enter the gas chamber through the air inlet pipe and the air inlet at the bottom of the air inlet head. Inside the gas chamber, the vapors are filtered by a filter screen. The flowing vapor triggers a drive component to clean the filter surface of the filter screen. The filtered gas enters the neutralization device for neutralization and is discharged from the exhaust pipe. When the concentration of the neutralizing substance inside the neutralization device becomes low, it is replaced by a sewage discharge regulating component.

[0018] 2. When the drive assembly is working in this invention, since toxic vapors flow into the bottom of the air chamber from the air inlet, and multiple vortex blades are located above the air inlet, the airflow hits the vortex blades when the toxic vapors flow in, causing the vortex blades to rotate. The lower drive ring and the upper drive ring connected to the vortex blades are fixed by a connecting rod, so the upper drive ring can be driven to rotate. When the upper drive ring rotates, it will drive the side rod and scraper to rotate together. When the scraper rotates, it will scrape off and clean the filtered dirt along the filter surface inside the filter screen, ensuring the filter screen's filtration permeability.

[0019] 3. When the neutralizing device of the present invention is working, the liquid that can neutralize the toxic vapors first needs to be placed inside the neutralization chamber. After being filtered by the filter screen, the toxic vapors flow into the bottom of the neutralization chamber through the drainage hole. Then, as the toxic vapors flow upward from the bottom of the neutralization chamber, they are neutralized by the neutralizing liquid inside the neutralization chamber. The neutralized gas flows into the bending hole through the air guide hole, and then flows to the exhaust pipe from the bending hole and is discharged.

[0020] 4. When the discharge regulating component of this invention is working, if the concentration of the neutralizing liquid inside the neutralization chamber meets the requirements, the equipment will operate according to the working steps of the neutralization device. At this time, the feed pipe and the air guide hole are misaligned and opposite, the bending hole and the air guide hole are interconnected, and below the neutralization chamber, the bridging hole is interconnected with the drainage hole through the through hole. The discharge hole and the bridging hole are misaligned and opposite. When the concentration of the neutralizing liquid inside the neutralization chamber is low and needs to be replaced, the regulating cover can be rotated to make the feed pipe and the air guide hole interconnected, the bending hole and the air guide hole misaligned and opposite, the discharge hole and the bridging hole interconnected, and the bridging hole and the drainage hole cut off from each other. At this time, the gas inside the gas chamber cannot enter the neutralization chamber through the drainage hole. The neutralizing liquid inside the neutralization chamber is discharged through the bridging hole and the discharge hole. Fresh neutralizing liquid supplied from the outside enters the air guide hole through the feed pipe and then enters the neutralization chamber through the air guide hole, so that the neutralizing liquid can be replaced. After replacement, the regulating cover can be reversed to reset the equipment. Attached Figure Description

[0021] Figure 1 This invention provides a front-view perspective three-dimensional structural diagram of a salt bath furnace heating steam post-treatment device;

[0022] Figure 2 This invention provides a bottom-view perspective three-dimensional structural diagram of a salt bath furnace heating steam post-treatment device;

[0023] Figure 3 This invention provides a cross-sectional perspective view of a steam post-treatment device for a salt bath furnace.

[0024] Figure 4 This invention provides a three-dimensional cross-sectional view of one side of a fixed column in a salt bath furnace heating steam post-treatment device.

[0025] Figure 5 This invention provides a three-dimensional cross-sectional view of the other side of a fixed column in a salt bath furnace heating steam post-treatment device.

[0026] Figure 6 This invention provides a front-view three-dimensional structural diagram of the drive component in a salt bath furnace heated steam post-treatment device;

[0027] Figure 7 For the present invention Figure 3 A magnified view of a portion of point A in the middle;

[0028] Figure 8 For the present invention Figure 4 A magnified view of a portion of point B in the middle.

[0029] In the diagram: 1. Adjusting cover; 2. Rubber sleeve; 3. Flange ring; 4. Annular groove; 5. Opening; 6. Air inlet pipe; 7. Feed pipe; 8. Exhaust pipe; 9. Air inlet head; 10. Air inlet; 11. Bending hole; 12. Fixed column; 13. Air guide hole; 14. Neutralization chamber; 15. Annular opening; 16. Drainage hole; 17. Buffer chamber; 18. Filter screen cover; 19. Through port; 20. Adjusting ring; 21. Through hole; 22. Vertical rod; 23. Drain hole; 24. Annular limiting groove; 25. Upper drive ring; 26. Lower drive ring; 27. Vortex blade; 28. Connecting rod; 29. ​​Side rod; 30. Scraper; 31. Air chamber; 32. Bridging hole. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Please see Figure 1-8 The present invention provides a technical solution: a steam post-treatment device for a salt bath furnace, comprising an adjusting cover 1 and a fixed column 12. The fixed column 12 has an air cavity 31 extending from the inside to the top. The adjusting cover 1 is slidably fitted onto the outer surface of the fixed column 12, and the top of the fixed column 12 is slidably sealed to the inner top surface of the adjusting cover 1. A driving component is provided on the inner bottom surface of the air cavity 31. A central closing device is provided inside the fixed column 12. A sewage discharge adjusting component is provided on the outer surface of the fixed column 12 near the bottom edge.

[0032] An air inlet head 9 is fixed at the bottom of the fixed column 12 in the middle. Multiple air inlets 10 are equidistantly opened at the bottom of the air inlet head 9 along the circumferential direction. One end of each air inlet 10 extends to the bottom surface of the air chamber 31. An air inlet pipe 6 is connected to the bottom of the fixed column 12. Flange rings 3 are fixed at the bottom edge of the outer surface of the fixed column 12 and at the top edge of the outer surface of the air inlet pipe 6. The two flange rings 3 are connected to each other. The bottom of the air inlet head 9 extends into the interior of the air inlet pipe 6. An annular groove 4 is opened at the top of the flange ring 3 on the fixed column 12. An opening 5 is opened on one side of the inner wall of the annular groove 4, and the opening 5 extends to the outside of the flange ring 3.

[0033] The effect achieved is that the toxic vapor generated by the salt bath furnace is transported to this device for neutralization through the air inlet pipe 6. During the transport process, the toxic vapor enters the gas chamber 31 through the air inlet pipe 6 and the air inlet 10 at the bottom of the air inlet head 9. Inside the gas chamber 31, the vapor is filtered by the filter screen 18, and the flowing vapor triggers the drive component to clean the filter surface of the filter screen 18. The filtered gas enters the neutralization device for neutralization, and is discharged from the exhaust pipe 8 after neutralization. When the concentration of the neutralizing substance inside the neutralization device becomes low, it is replaced by the sewage discharge regulating component.

[0034] like Figure 2 , Figure 4 , Figure 5 , Figure 6 and Figure 8 As shown, the drive assembly includes a vertical rod 22, which is fixed to the inner bottom surface of the air chamber 31 and located in the middle of the air chamber 31. Annular limiting grooves 24 are formed on the outer surface of the vertical rod 22 near its top and bottom edges. An upper drive ring 25 is rotatably disposed inside the annular limiting groove 24 at the top of the vertical rod 22, and a lower drive ring 26 is rotatably disposed inside the annular limiting groove 24 at the bottom of the vertical rod 22. Multiple connecting rods 28 are equidistantly fixed at the bottom of the upper drive ring 25 along the circumferential direction. The bottoms of the multiple connecting rods 28 extend and are correspondingly fixed to the top of the lower drive ring 26. The multiple connecting rods 28 surround the upper drive ring 25. The outer surface of the upright 22 is arranged with multiple vortex blades 27 fixed at equal intervals along the circumferential direction on the outer surface of the lower drive ring 26. The multiple vortex blades 27 are all located above the air inlet 10. The inner wall of the air chamber 31 is provided with a filter screen 18. The outer surface of the upper drive ring 25 is fixed with three side rods 29 at equal intervals along the circumferential direction. One end of each of the three side rods 29 extends to the top of the filter screen 18. A scraper 30 is fixed to the bottom of one end of each of the three side rods 29. One side of the outer surface of each of the multiple scrapers 30 is in contact with the inner wall of the filter screen 18, and the bottom of the scraper 30 extends to the bottom of the filter screen 18.

[0035] The effect achieved is that, since toxic vapors flow into the bottom of the air chamber 31 from the air inlet 10, and multiple vortex blades 27 are located above the air inlet 10, the airflow hits the vortex blades 27 when the toxic vapors flow in, causing the vortex blades 27 to rotate. The lower drive ring 26 and the upper drive ring 25 connected to the vortex blades 27 are fixed by the connecting rod 28, so the upper drive ring 25 can be driven to rotate. When the upper drive ring 25 rotates, it will drive the side rod 29 and the scraper 30 to rotate together. When the scraper 30 rotates, it will scrape and clean the filtered dirt along the filter surface inside the filter screen 18, ensuring the filtration permeability of the filter screen 18.

[0036] like Figure 3 , Figure 4 and Figure 7As shown, the neutralizing device includes a neutralizing cavity 14, which is located inside the fixed column 12. A buffer cavity 17 is located near the inner edge of the fixed column 12. The neutralizing cavity 14 is situated below the buffer cavity 17. Multiple through-holes 19 are equidistantly spaced along the circumferential direction on the inner wall of the buffer cavity 17. Each through-hole 19 leads to the interior of the air chamber 31 and is located on one side of the filter screen 18. Multiple drainage holes 16 are equidistantly spaced along the circumferential direction on the bottom surface of the buffer cavity 17. The bottom surface of the neutralizing cavity 14 is also equidistantly spaced along the circumferential direction... Multiple bridging holes 32 are provided at intervals, and one end of each of the multiple drainage holes 16 is connected to the bottom of the bridging hole 32. Multiple air guide holes 13 are provided at equal intervals along the circumferential direction on the inner top surface of the neutralization cavity 14, which are connected to the top of the fixed column 12. An exhaust pipe 8 is fixed at the middle of the top of the regulating cover 1. Multiple bending holes 11 are provided at equal intervals along the circumferential direction on the inner top surface of the regulating cover 1. One end of each of the multiple bending holes 11 is connected to the interior of the exhaust pipe 8, and the bottom of each of the multiple bending holes 11 is connected to the top of the air guide holes 13.

[0037] The effect achieved is as follows: first, a liquid that can neutralize toxic vapors needs to be placed inside the neutralization chamber 14. After being filtered by the filter screen 18, the toxic vapors flow into the bottom of the neutralization chamber 14 through the drainage hole 16. Then, as the toxic vapors flow upward from the bottom of the neutralization chamber 14, they are neutralized by the neutralizing liquid inside the neutralization chamber 14. The neutralized gas flows into the bending hole 11 through the air guide hole 13, and then flows from the bending hole 11 to the exhaust pipe 8 for discharge.

[0038] like Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 7As shown, the sewage regulating component includes an regulating ring 20. An annular opening 15 is formed on the outer surface of the fixed column 12 near its bottom edge. The annular opening 15 and multiple drainage holes 16 penetrate each other. Multiple bridging holes 32 extend to the inner top surface of the annular opening 15. The regulating ring 20 is rotatably and sealingly connected to the inside of the annular opening 15. Multiple through holes 21 extending to the bottom are equidistantly formed along the circumferential direction on the top of the regulating ring 20. The multiple drainage holes 16 and bridging holes 32 are interconnected through the through holes 21. The top of the regulating ring 20 is fixed to the bottom of the regulating cover 1 near its outer surface edge. The outer surface of the regulating cover 1 is close to... A rubber sleeve 2 is fixed at the top edge. Multiple feed pipes 7 are fixed at equal intervals along the circumferential direction on the top of the adjusting cover 1. The bottom of each feed pipe 7 is connected to the inner top surface of the adjusting cover 1. Each feed pipe 7 is opposite to the air guide hole 13. Multiple discharge holes 23 are opened at equal intervals along the circumferential direction on the top of the adjusting ring 20. One end of each discharge hole 23 is connected to the outer surface of the adjusting ring 20 and is located above the annular groove 4. The top of each discharge hole 23 is connected to the bridging hole 32. The feed pipe 7 is located directly above the discharge hole 23. The bending hole 11 is located directly above the through hole 21.

[0039] The desired effect is that when the concentration of the neutralizing liquid inside the neutralization chamber 14 meets the requirements, the equipment will operate according to the working steps of the neutralization device. At this time, the feed pipe 7 and the air guide hole 13 are misaligned and opposite, and the bending hole 11 is connected to the air guide hole 13. Below the neutralization chamber 14, the bridging hole 32 is connected to the drainage hole 16 through the through hole 21, and the discharge hole 23 is misaligned and opposite to the bridging hole 32. When the concentration of the neutralizing liquid inside the neutralization chamber 14 is low and needs to be replaced, the adjusting cover 1 can be rotated to connect the feed pipe 7 and the air guide hole 13. The bending hole 11 and the air guide hole 13 are misaligned and opposite each other. The discharge hole 23 and the bridging hole 32 are interconnected. The bridging hole 32 and the drainage hole 16 are cut off from each other. At this time, the gas inside the air chamber 31 cannot enter the neutralization chamber 14 through the drainage hole 16. The neutralized liquid inside the neutralization chamber 14 is discharged through the bridging hole 32 and the discharge hole 23. The fresh neutralized liquid supplied from the outside enters the air guide hole 13 through the feed pipe 7, and then enters the neutralization chamber 14 through the air guide hole 13, so that the neutralized liquid can be replaced. After replacement, the equipment can be reset by reversing the adjustment cover 1.

[0040] Working Principle: When using this device, toxic vapors generated by the salt bath furnace are transported to this device through the inlet pipe 6 for neutralization. During the transport process, the toxic vapors enter the gas chamber 31 through the inlet pipe 6 and the inlet 10 at the bottom of the inlet head 9. Inside the gas chamber 31, the vapors are filtered by the filter screen 18, and the flowing vapor triggers the drive component. Since the toxic vapors flow into the bottom of the gas chamber 31 from the inlet 10, and multiple vortex blades 27 are located above the inlet 10, the airflow hits the vortex blades 27 when the toxic vapors flow in, causing the vortex blades 27 to rotate. The lower part of the vortex blades 27 is connected to the vortex blades 27. The drive ring 26 and the upper drive ring 25 are fixed together by a connecting rod 28, so the upper drive ring 25 can be rotated. When the upper drive ring 25 rotates, it will drive the side rod 29 and the scraper 30 to rotate together. When the scraper 30 rotates, it will scrape and clean the filtered dirt along the filter surface inside the filter screen 18, ensuring the filtration permeability of the filter screen 18. First, a liquid that can neutralize toxic vapors needs to be placed inside the neutralization chamber 14. After being filtered by the filter screen 18, the toxic vapors flow into the bottom of the neutralization chamber 14 through the drainage hole 16. Then, the toxic vapors flow upward from the bottom inside the neutralization chamber 14 and are neutralized inside the neutralization chamber 14. The neutralizing liquid neutralizes the gas, and the neutralized gas flows into the bending hole 11 through the air guide hole 13, and then flows out through the bending hole 11 to the exhaust pipe 8. When the concentration of the neutralizing liquid inside the neutralization chamber 14 meets the requirements, the equipment will operate according to the working steps of the neutralization device. At this time, the feed pipe 7 is offset from the air guide hole 13, and the bending hole 11 is connected to the air guide hole 13. Below the neutralization chamber 14, the bridging hole 32 is connected to the drainage hole 16 through the through hole 21, and the discharge hole 23 is offset from the bridging hole 32. When the concentration of the neutralizing liquid inside the neutralization chamber 14 is low and needs to be replaced, the device can be rotated. Adjusting cover 1 connects the feed pipe 7 to the air guide hole 13, with the bending hole 11 offset from the air guide hole 13. The drain hole 23 connects to the bridging hole 32, and the bridging hole 32 is cut off from the drainage hole 16. At this time, the gas inside the air chamber 31 cannot enter the neutralization chamber 14 through the drainage hole 16. The neutralized liquid inside the neutralization chamber 14 is discharged through the bridging hole 32 and the drain hole 23. Fresh neutralized liquid supplied from the outside enters the air guide hole 13 through the feed pipe 7, and then enters the neutralization chamber 14 through the air guide hole 13, so that the neutralized liquid can be replaced. After replacement, reversing the adjusting cover 1 can reset the equipment.

[0041] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A post-treatment device for steam heated by a salt bath furnace, characterized in that, It includes an adjusting cover (1) and a fixed column (12). The fixed column (12) has an air cavity (31) extending to the top inside. The adjusting cover (1) is slidably fitted on the outer surface of the fixed column (12), and the top of the fixed column (12) is slidably sealed to the inner top surface of the adjusting cover (1). A driving component is provided on the inner bottom surface of the air cavity (31). A central closing device is provided inside the fixed column (12). A sewage discharge adjusting component is provided on the outer surface of the fixed column (12) near the bottom edge. The bottom of the fixed column (12) is fixed with an air inlet head (9) at the middle. The bottom of the air inlet head (9) is provided with multiple air inlets (10) at equal intervals along the circumferential direction. One end of each of the multiple air inlets (10) penetrates into the inner bottom surface of the air chamber (31). The drive assembly includes a vertical rod (22). The vertical rod (22) is fixed to the inner bottom surface of the air chamber (31) and is located in the middle of the air chamber (31). The outer surface of the vertical rod (22) is provided with an annular limiting groove (24) near the top and bottom edges. An upper drive ring (25) is rotatably arranged inside the annular limiting groove (24) at the top of the vertical rod (22). A lower drive ring (26) is rotatably arranged inside the annular limiting groove (24) at the bottom of the vertical rod (22). Multiple connecting rods (28) are fixed at equal intervals along the circumferential direction at the bottom of the upper drive ring (25). The bottom of each connecting rod (28) is fixed to the top of the lower drive ring (26). Multiple connecting rods (28) are arranged around the outer surface of the upright (22). Multiple vortex blades (27) are fixed at equal intervals along the circumferential direction on the outer surface of the lower drive ring (26). Multiple vortex blades (27) are located above the air inlet (10). A filter screen (18) is provided on the inner wall of the air chamber (31). Three side rods (29) are fixed at equal intervals along the circumferential direction on the outer surface of the upper drive ring (25). One end of each of the three side rods (29) extends to the top of the filter screen (18). A scraper (30) is fixed at the bottom of one end of each of the three side rods (29). One side of the outer surface of each of the multiple scrapers (30) is in contact with the inner wall of the filter screen (18), and the bottom of the scraper (30) extends to the bottom of the filter screen (18). The neutralizing device includes a neutralizing cavity (14), which is located inside a fixed column (12). A buffer cavity (17) is located near the inner edge of the fixed column (12). The neutralizing cavity (14) is located below the buffer cavity (17). Multiple through-holes (19) are equidistantly spaced along the circumferential direction on the inner wall of the buffer cavity (17). Each through-hole (19) extends into the air chamber (31) and is located on one side of the filter screen (18). Multiple drainage holes (16) are equidistantly spaced along the circumferential direction on the bottom surface of the buffer cavity (17). The bottom surface of the neutralizing cavity (14) is equidistantly spaced along the circumferential direction. Multiple bridging holes (32) are equidistantly provided. One end of each of the multiple drainage holes (16) is connected to the bottom of the bridging hole (32). Multiple air guide holes (13) are equidistantly provided on the inner top surface of the neutralization cavity (14) along the circumferential direction and are connected to the top of the fixed column (12). An exhaust pipe (8) is fixed at the middle of the top of the adjustment cover (1). Multiple bending holes (11) are equidistantly provided on the inner top surface of the adjustment cover (1) along the circumferential direction. One end of each of the multiple bending holes (11) is connected to the interior of the exhaust pipe (8). The bottom of each of the multiple bending holes (11) is connected to the top of the air guide hole (13).

2. The post-treatment device for steam heated by a salt bath furnace according to claim 1, characterized in that: The bottom of the fixed column (12) is connected to the air inlet pipe (6). Flange rings (3) are fixed on the outer surface of the fixed column (12) near the bottom edge and on the outer surface of the air inlet pipe (6) near the top edge. The two flange rings (3) are connected to each other. The bottom of the air inlet head (9) extends into the interior of the air inlet pipe (6). An annular groove (4) is provided on the top of the flange ring (3) on the fixed column (12). An opening (5) is provided on one side of the inner wall of the annular groove (4). The opening (5) extends to the outside of the flange ring (3).

3. The post-treatment device for steam heated by a salt bath furnace according to claim 2, characterized in that: The sewage discharge regulating component includes an regulating ring (20). An annular opening (15) is provided on the outer surface of the fixed column (12) near the bottom edge. The annular opening (15) is interconnected with multiple drainage holes (16). Multiple bridging holes (32) are all connected to the inner top surface of the annular opening (15). The regulating ring (20) is rotatably and sealingly connected to the inside of the annular opening (15). Multiple through holes (21) are provided at equal intervals along the circumferential direction on the top of the regulating ring (20) and are connected to the bottom. Multiple drainage holes (16) and bridging holes (32) are all connected to each other through the through holes (21).

4. The post-treatment device for steam heating in a salt bath furnace according to claim 3, characterized in that: The top of the adjusting ring (20) is fixed to the bottom of the adjusting cover (1) near the edge of the outer surface. A rubber sleeve (2) is fixed to the outer surface of the adjusting cover (1) near the top edge. Multiple feeding pipes (7) are fixed at equal intervals along the circumferential direction on the top of the adjusting cover (1). The bottom of each of the multiple feeding pipes (7) is connected to the inner top surface of the adjusting cover (1). Each of the multiple feeding pipes (7) is opposite to the air guide hole (13).

5. The post-treatment device for steam heated by a salt bath furnace according to claim 4, characterized in that: The top of the adjusting ring (20) is provided with a plurality of drain holes (23) at equal intervals along the circumferential direction. One end of each drain hole (23) extends through to the outer surface of the adjusting ring (20) and is located above the annular groove (4). The top of each drain hole (23) is connected to the bridging hole (32). The feed pipe (7) is located directly above the drain hole (23), and the bending hole (11) is located directly above the through hole (21).

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