A cold reduction annealing furnace for stainless steel

Abstract

The present application relates to the field of stainless steel production and processing, and particularly relates to a cold rolling annealing furnace for stainless steel, which comprises an annealing furnace, the inside of the annealing furnace is provided with a conveying device, the inner wall bottom of the annealing furnace is fixedly connected with the bottom of the conveying device, the top of the annealing furnace is fixedly connected with a heat storage device, and the outer surface of the annealing furnace is fixedly connected with a heat utilization device, the heat and the generated waste gas are conducted to the U-shaped pipe through the spiral pipe and then into the short column, water is added to the outer bucket and the inner bucket, and the inactivated activated carbon is added to the inner disc, the water can be quickly heated through the spiral pipe, a large amount of steam is generated, the steam regenerates the activated carbon through the air holes, the steam flow rate of the inner bucket is faster due to the fact that the diameter of the inner bucket is smaller at the top and larger at the bottom, the activated carbon can be better regenerated through the slow steam of the outer bucket and the fast steam of the inner bucket, the high-temperature waste gas can be cooled through the spiral pipe, and subsequent filtration is facilitated.

Description

Technical Field

[0001] This invention relates to the field of stainless steel production and processing, and specifically to a cold rolling annealing furnace for stainless steel. Background Technology

[0002] To improve the microstructure and performance, stainless steel strip needs to be annealed after cold rolling. The continuous annealing furnace for cold-rolled stainless steel is a key piece of equipment in the direct rolling, annealing and pickling line for cold-rolled stainless steel, and it is a key process in the production of cold-rolled stainless steel products.

[0003] Existing stainless steel cold rolling annealing furnaces contain a large number of impurities in the stainless steel during operation. These impurities generate a large amount of smoke when they encounter high temperatures inside the annealing furnace, impacting the surrounding environment and reducing the environmental friendliness of the equipment. At the same time, current continuous annealing furnaces for cold rolling stainless steel use open flame burners for direct heating, consuming natural gas as the energy medium. Energy saving and consumption reduction in annealing furnaces are important ways for enterprises to reduce production costs, save energy, and increase economic benefits. However, currently, not only is most of the waste heat from the annealing furnace heating exhaust gas not fully utilized and is directly discharged into the atmosphere, but the waste heat of the stainless steel strip itself is never utilized, despite the high output of stainless steel annealing furnaces. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the technical solution adopted by this invention to solve its technical problems is as follows: The present invention provides a cold rolling annealing furnace for stainless steel, comprising an annealing furnace, wherein a conveying device is provided inside the annealing furnace, and the bottom of the inner wall of the annealing furnace is fixedly connected to the bottom of the conveying device; a heat storage device is fixedly connected to the top of the annealing furnace; a heat utilization device is fixedly connected to the outer surface of the annealing furnace; and an empty cooling box is fixedly connected to the end of the conveying device away from the annealing furnace.

[0005] Preferably, the conveying device includes a fixed frame, with a steel belt inside the fixed frame. The top of the fixed frame contacts the bottom of the steel belt. A motor is fixedly connected to the outer surface of the fixed frame. Fixed rods are symmetrically arranged at the end of the fixed frame away from the motor, and the inner wall of the fixed frame is rotatably connected to the outer surface of the fixed rods. A sliding groove is formed on the outer surface of the fixed frame, and a slider is slidably connected to the inner wall of the sliding groove. A plate-shaped cleaning component is fixedly connected to the end of the slider away from the fixed rod. A base plate is fixedly connected to the end of the fixed frame near the fixed rod, and a tubular cleaning component is fixedly connected to the top of the base plate. This allows the workpiece to be quickly transported into the annealing furnace, ensuring processing efficiency.

[0006] Preferably, the plate-shaped cleaning component includes a U-shaped plate, with rotating plates symmetrically arranged on the top of the U-shaped plate, and the top of the U-shaped plate is fixedly connected to the bottom of the rotating plates. A rotating shaft is fixedly connected to the outer surface of the rotating plates, and a cleaning shaft is rotatably connected to the outer surface of the rotating shaft. A roller is rotatably connected to the end of the U-shaped plate away from the rotating plates, and a rotating column is fixedly connected to the end of the roller away from the U-shaped plate. Sleeves are evenly arranged on the outer surface of the roller, and the outer surface of the roller is slidably connected to the inner wall of the sleeves.

[0007] Preferably, the outer surface of the sleeve is uniformly provided with sliding rods, and the outer surface of the sleeve is fixedly connected to the end of the sliding rod near the roller. A scraper is slidably connected to the outer surface of the sliding rod, and a spring is sleeved on the outer surface of the sliding rod. An arc-shaped groove is formed on the outer surface of the scraper, and a moving rod is slidably connected to the inner wall of the arc-shaped groove. A counterweight ball is fixedly connected to both ends of the moving rod, and an elastic rod is fixedly connected to the outer surface of the counterweight ball. A cleaning plate is fixedly connected to the end of the elastic rod away from the counterweight ball. This allows for cleaning of the flat steel surface, removing impurities from the flat surface, and preventing surface impurities from contacting the high-temperature transmission device and entering the annealing furnace. The process involves burning, which produces a large amount of toxic gas. Two moving blocks adjust the contact distance with the steel plate, and a scraper scrapes impurities from the steel plate surface. A spring keeps the scraper and steel plate in close contact for better cleaning. The distance between the sleeves can be adjusted according to the size of the steel plate to clean different sized steel plates, preventing other scrapers from being contaminated and increasing the cleaning burden. When too many impurities accumulate on a scraper, the rotating column can be rotated to move the scraper downwards, and the moving rod moves within the arc groove. With the help of the gravity ball, the movement speed is faster. The cleaning plate cleans the scraper surface to ensure better cleaning effect. The steel plate then moves forward, and the cleaning shaft performs a secondary cleaning of the steel plate surface.

[0008] Preferably, the tubular cleaning component includes a fixed frame comprising a load-bearing block. A roller is rotatably connected to the top of the load-bearing block. A fixed ring is fixedly connected to the outer surface of the load-bearing block. A brush is fixedly connected to the inner wall of the fixed ring. A scraper ring is fixedly connected to the inner wall of the fixed ring. A rotating ring is rotatably connected to the end of the fixed ring furthest from the load-bearing block. Pressure columns are symmetrically arranged on the inner wall of the rotating ring, and the inner wall of the rotating ring is slidably connected to the outer surface of the pressure columns. A second spring is sleeved on the outer surface of each pressure column. A pressure plate is fixedly connected to the end of the pressure column near the second spring. A cleaning plate is slidably connected to the end of the pressure plate closest to the spring. Fixed long columns are symmetrically arranged on the pressure plate, and the outer surface of the pressure plate is connected to both ends of the fixed long columns. A scraper is fixedly connected to the outer surface of the fixed column to clean the surface of the steel pipe and remove impurities. The steel pipe is placed on the load-bearing block, and the roller ensures that it can be pushed forward better, ensuring that the brush and the surface of the steel pipe are in contact. If the steel pipe is placed directly, it will flatten the brush and lose its cleaning effect. The brush brushes away the impurities on the surface. Because the brush is deformed due to the pressure of the steel pipe, it will scrape the scraping ring. The scraping ring will remove the impurities adhering to the brush. When the steel pipe is pushed forward, the spring will push the pressure plate, so that the cleaning plate and the steel pipe come into contact, wiping away the impurities that were loosened by the brush on the surface of the steel pipe. After cleaning, the cleaning plate is fixed, and the rotating ring is rotated so that the scraper cleans the surface of the cleaning plate.

[0009] Preferably, the heat storage device includes a heat storage box, on the outer surface of which vent pipes are symmetrically arranged, and the outer surface of the heat storage box is fixedly connected to the end of the vent pipes away from the annealing furnace. A filter box is fixedly connected to the top of the heat storage box, and an agitator is fixedly connected to the inner wall of the filter box. An exhaust gas pipe is fixedly connected to the outer surface of the filter box, and an exhaust fan is fixedly connected to the top of the filter box. This allows for the filtration of exhaust gas and the storage of heat energy, facilitating rapid heat replenishment when the annealing furnace needs to be heated, without wasting excess fuel. The exhaust gas is drawn into the filter box by the exhaust fan, and activated carbon is placed inside the filter box. The gas flows into the heat storage box through adsorption by the activated carbon.

[0010] Preferably, the agitating component includes a hemispherical body, with three arc-shaped strips fixedly connected to the center of the hemispherical body. A stirring plate is fixedly connected to the bottom of the arc-shaped strips, and a rotating cylinder is fixedly connected to the top of the hemispherical body. Three semi-circular plates are fixedly connected to the outer surface of the rotating cylinder, and a fixed cylinder is rotatably connected to the top of the rotating cylinder. A circular frame is fixedly connected to the outer surface of the fixed cylinder. This allows the added activated carbon to be evenly spread in the filter box. Since the upper layer of activated carbon will lose its activity first, agitation ensures the uniformity of the activated carbon's deactivation, avoiding waste and guaranteeing its filtration effect. The air from the exhaust fan pushes the semi-circular plates, causing the rotating cylinder and arc-shaped strips to rotate, and the stirring plate to evenly spread the activated carbon.

[0011] Preferably, the heat utilization device includes an outer barrel, an outer pipe fixedly connected to the inner wall of the outer barrel, a spiral pipe fixedly connected to one end of the outer pipe near the outer barrel, an inner barrel fixedly connected to the bottom of the inner wall of the outer barrel, a U-tube fixedly connected to the end of the spiral pipe away from the outer pipe, an outer disc fixedly connected to the top of the outer barrel, an inner disc fixedly connected to the bottom of the inner wall of the outer disc, air holes formed on the outer surface of the inner disc, a short column fixedly connected to the top of the outer disc, a sleeve column rotatably connected to the bottom of the inner wall of the short column, three rotating blades fixedly connected to the outer surface of the sleeve column, and a leveling component fixedly connected to the bottom of the sleeve column, which can fully utilize the residual heat of the annealing furnace. The heat is designed to ensure that the waste heat of the annealing furnace is not wasted. The outer tube and spiral tube are made of copper, which has better thermal conductivity. The heat and the generated exhaust gas are conducted through the spiral tube to the U-shaped tube and into the short column, driving the vane to rotate. Water is added to the outer and inner barrels, and deactivated activated carbon is added to the inner plate. The spiral tube can quickly heat the water and generate a large amount of steam. The steam regenerates the activated carbon through the pores. Because the inner barrel has a smaller diameter at the top and a larger diameter at the bottom, the steam flow rate from the inner barrel is faster. The slow steam from the outer barrel and the fast steam from the inner barrel can better regenerate the activated carbon, and the high-temperature exhaust gas can be cooled through the spiral tube, which facilitates subsequent filtration.

[0012] Preferably, the leveling component includes a short shaft, a bent rod fixedly connected to the bottom of the short shaft, connecting rods fixedly connected to both ends of the bent rod, a bonding rod fixedly connected to the end of the connecting rod away from the bent rod, a baffle plate fixedly connected to the top of the bonding rod, short sleeves evenly distributed on the outer surface of the bent rod, and the outer surface of the bent rod rotatably connected to the inner wall of the short sleeves, an inclined plate fixedly connected to the outer surface of the short sleeves, a square groove formed on the outer surface of the inclined plate, a short rod fixedly connected to the inner wall of the square groove, and a hook fixedly connected to the end of the inclined plate away from the short sleeves. This allows for sufficient contact between the activated carbon and steam, ensuring its regeneration effect, preventing local accumulation, and guiding... Excessive temperature causes the activated carbon to lose its activity. The rotation of the sleeve column drives the short shaft to rotate, and the curved rod agitates the activated carbon. Because the inner plate is arc-shaped, it tends to accumulate in the middle. The connecting rod is a curved rod that extends from the edge of the inner plate towards the center. Together with the baffle plate, it can evenly spread the activated carbon in the middle outwards of the inner plate, avoiding local accumulation. Through rotation, the inclined plate contacts the activated carbon, turning the bottom activated carbon up so that the upper activated carbon can also have better contact with the steam. The hook can be inserted into the activated carbon, allowing the inclined plate to better reach the bottom of the activated carbon. The activated carbon passes through the square groove and the short rod to prevent the activated carbon from sticking together and not being able to contact the steam well.

[0013] Preferably, the filter box is fixed on the outer surface of the circular frame, and the bottom of the stirring plate is in contact with the bottom of the inner wall of the filter box.

[0014] The beneficial effects of this invention are as follows:

[0015] 1. This invention, by setting up a plate-shaped cleaning component, can clean the surface of flat steel, remove impurities from the surface of the plate, and prevent surface impurities from being burned and producing a large amount of toxic gases when in contact with high-temperature transmission devices or entering the annealing furnace. Two moving blocks adjust the contact distance with the steel plate, and a scraper scrapes the impurities on the surface of the steel plate. A spring keeps the scraper and the steel plate in close contact for better cleaning effect. The distance between the sleeves can be adjusted according to the size of the steel plate to clean steel plates of different sizes, avoiding contamination of other scrapers and increasing the cleaning burden. When too many impurities accumulate on a scraper, the rotating column can be rotated to move the scraper downward, and the moving rod moves in the arc groove. With the help of the gravity ball, the movement speed is faster. The cleaning plate cleans the surface of the scraper to ensure better cleaning effect. The steel plate moves forward again, and the cleaning shaft performs a secondary cleaning of the surface of the steel plate.

[0016] 2. This invention, by setting a tubular cleaning component, can clean the surface of a steel pipe and remove impurities. The steel pipe is placed on a load-bearing block, and the rollers ensure that it can move forward better, ensuring that the brush and the surface of the steel pipe are in contact. If the steel pipe is placed directly, it will flatten the brush and lose its cleaning effect. The brush brushes away the impurities on the surface. Because the brush is deformed due to being squeezed by the steel pipe, it will scrape the scraper ring. The scraper ring will remove the impurities adhering to the brush. When the steel pipe is pushed forward, the spring pushes the pressure plate, so that the cleaning plate comes into contact with the steel pipe and wipes away the impurities that were loosened by the brush on the surface of the steel pipe. After cleaning, the cleaning plate is fixed, and the rotating ring is rotated so that the scraper cleans the surface of the cleaning plate.

[0017] 3. This invention, by setting up a heat utilization device, can fully utilize the waste heat of the annealing furnace, ensuring that the waste heat of the annealing furnace is not wasted. The outer tube and spiral tube are made of copper, which has better thermal conductivity. The heat and the generated waste gas are conducted through the spiral tube to the U-shaped tube and enter the short column, driving the vane to rotate. Water is added to the outer and inner barrels, and the deactivated activated carbon is added to the inner plate. The spiral tube can quickly heat the water and generate a large amount of steam. The steam regenerates the activated carbon through the pores. Since the diameter of the inner barrel is smaller at the top and larger at the bottom, the steam flow rate out of the inner barrel is faster. Through the slow steam in the outer barrel and the fast steam in the inner barrel, the activated carbon can be regenerated better, and the high-temperature waste gas can be cooled through the spiral tube, which facilitates subsequent filtration.

[0018] 4. This invention, by setting up a leveling component, ensures full contact between activated carbon and steam, guaranteeing its regeneration effect and preventing local accumulation that could lead to excessively high temperatures and loss of activity. The rotating sleeve drives the short shaft to rotate, and the curved rod agitates the activated carbon. Since the inner disc is arc-shaped, some carbon may accumulate in the center. The conforming rod, a curved rod extending from the edge of the inner disc towards the center, along with the baffle plate, evenly spreads the activated carbon from the center outwards, preventing local accumulation. Through rotation, the inclined plate contacts the activated carbon, turning the bottom activated carbon upwards, allowing the upper layer to better contact with the steam. The hook can be inserted into the activated carbon, allowing the inclined plate to better reach the bottom of the activated carbon. The activated carbon passes through a square groove and the short rod, preventing sticking in the activated carbon trough and ensuring good contact with the steam. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the transmission device of the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of the plate-shaped cleaning component of the present invention;

[0022] Figure 4 This is the present invention. Figure 3 A schematic diagram of the structure at point A;

[0023] Figure 5 This is a schematic diagram of the tubular cleaning component of the present invention;

[0024] Figure 6 This is a schematic diagram of the heat storage device of the present invention;

[0025] Figure 7 This is a schematic diagram of the agitator component of the present invention;

[0026] Figure 8 This is a schematic diagram of the heat utilization device of the present invention;

[0027] Figure 9 This is a schematic diagram of the structure of the flattening component of the present invention;

[0028] In the diagram: 1. Annealing furnace; 2. Conveying device; 3. Heat storage device; 4. Heat utilization device; 5. Air cooling box; 21. Fixing frame; 22. Steel belt; 23. Motor; 24. Fixing rod; 25. Slide rail; 26. Sliding block; 27. Plate-shaped cleaning component; 28. Base plate; 29. ​​Tubular cleaning component; 271. U-shaped plate; 272. Rotating plate; 273. Rotating shaft; 274. Cleaning shaft; 275. Rotating column; 2 76. Roller; 277. Sleeve; 278. Slide rod; 279. Spring 1; 2710. Scraper; 2711. Arc groove; 2712. Moving rod; 2713. Counterweight ball; 2714. Elastic rod; 2715. Cleaning plate; 291. Load-bearing block; 292. Roller; 293. Fixing ring; 294. Brush; 295. Scraper ring; 296. Rotary ring; 297. Pressure column; 298. Spring 2; 2 99. Pressure plate; 2910. Cleaning plate; 2911. Fixed column; 2912. Scraper; 31. Heat storage box; 32. Vent pipe; 33. Filter box; 34. Agitator; 35. Exhaust pipe; 36. Vacuum pump; 331. Hemispherical column; 332. Arc strip; 333. Agitator plate; 334. Swirl cylinder; 335. Semicircular plate; 336. Fixed cylinder; 337. Circular frame; 41. Outer barrel; 42. Outer pipe ; 43. Spiral tube; 44. Inner barrel; 45. U-tube; 46. Outer disc; 47. Inner disc; 48. Air hole; 49. Flattening component; 410. Short column; 411. Sleeve column; 412. Rotating blade; 491. Short shaft; 492. Bent rod; 493. Connecting rod; 494. Adhesive rod; 495. Baffle plate; 496. Short sleeve; 497. Inclined plate; 498. Square groove; 499. Short rod; 4910. Hook. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for a particular purpose.

[0030] Example, using Figures 1-9 The following describes a cold rolling annealing furnace for stainless steel according to one embodiment of the present invention.

[0031] like Figures 1-9As shown, the present invention provides a cold rolling annealing furnace 1 for stainless steel, comprising an annealing furnace 1, a conveying device 2 disposed inside the annealing furnace 1, and the bottom of the inner wall of the annealing furnace 1 being fixedly connected to the bottom of the conveying device 2, a heat storage device 3 being fixedly connected to the top of the annealing furnace 1, a heat utilization device 4 being fixedly connected to the outer surface of the annealing furnace 1, and an empty cooling box 5 being fixedly connected to the end of the conveying device 2 away from the annealing furnace 1.

[0032] The conveying device 2 includes a fixed frame 21, inside which a steel belt 22 is installed. The top of the fixed frame 21 contacts the bottom of the steel belt 22. A motor 23 is fixedly connected to the outer surface of the fixed frame 21. Fixed rods 24 are symmetrically arranged at the end of the fixed frame 21 away from the motor 23, and the inner wall of the fixed frame 21 is rotatably connected to the outer surface of the fixed rods 24. A groove 25 is opened on the outer surface of the fixed frame 21, and a slider 26 is slidably connected to the inner wall of the groove 25. A plate-shaped cleaning component 27 is fixedly connected to the end of the slider 26 away from the fixed rods 24. A base plate 28 is fixedly connected to the end of the fixed frame 21 near the fixed rods 24, and a tubular cleaning component 29 is fixedly connected to the top of the base plate 28. This device can quickly transport the workpiece into the annealing furnace 1, ensuring processing efficiency.

[0033] The plate-type cleaning component 27 includes a U-shaped plate 271. A rotating plate 272 is symmetrically arranged on the top of the U-shaped plate 271, and the top of the U-shaped plate 271 is fixedly connected to the bottom of the rotating plate 272. A rotating shaft 273 is fixedly connected to the outer surface of the rotating plate 272, and a cleaning shaft 274 is rotatably connected to the outer surface of the rotating shaft 273. A roller 276 is rotatably connected to the end of the U-shaped plate 271 away from the rotating plate 272, and a rotating column 275 is fixedly connected to the end of the roller 276 away from the U-shaped plate 271. Sleeves 277 are evenly arranged on the outer surface of the roller 276, and the outer surface of the roller 276 is slidably connected to the inner wall of the sleeves 277.

[0034] The outer surface of the sleeve 277 is evenly provided with sliding rods 278, and the outer surface of the sleeve 277 is fixedly connected to the end of the sliding rod 278 near the roller 276. A scraper 2710 is slidably connected to the outer surface of the sliding rod 278, and a spring 279 is sleeved on the outer surface of the sliding rod 278. An arc-shaped groove 2711 is opened on the outer surface of the scraper 2710, and a moving rod 2712 is slidably connected to the inner wall of the arc-shaped groove 2711. A counterweight ball 2713 is fixedly connected to both ends of the moving rod 2712, and an elastic rod 2714 is fixedly connected to the outer surface of the counterweight ball 2713. A cleaning plate 2715 is fixedly connected to the end of the elastic rod 2714 away from the counterweight ball 2713. This system can clean the surface of the flat steel, remove impurities from the surface of the flat plate, and prevent surface impurities from contacting the high-temperature transmission device and entering the annealing furnace 1. The process involves burning, which produces a large amount of toxic gas. Two moving blocks adjust the contact distance with the steel plate. The scraper 2710 scrapes the impurities on the surface of the steel plate. Spring 279 keeps the scraper 2710 and the steel plate in close contact for better cleaning. The distance between the sleeves 277 can be adjusted according to the size of the steel plate to clean steel plates of different sizes, preventing other scrapers 2710 from being contaminated and increasing the cleaning burden. When too many impurities accumulate on a scraper 2710, the rotating column 275 can be rotated to move the scraper 2710 downwards. The moving rod 2712 moves within the arc groove 2711, and with the help of the gravity ball, the movement speed is faster. The cleaning plate 2715 cleans the surface of the scraper 2710 to ensure better cleaning effect. The steel plate then moves forward, and the cleaning shaft 274 performs a secondary cleaning of the steel plate surface.

[0035] The tubular cleaning component 29 includes a fixing frame 21 and a load-bearing block 291. A roller 292 is rotatably connected to the top of the load-bearing block 291. A fixing ring 293 is fixedly connected to the outer surface of the load-bearing block 291. A brush 294 is fixedly connected to the inner wall of the fixing ring 293. A scraper ring 295 is fixedly connected to the inner wall of the fixing ring 293. A rotating ring 296 is rotatably connected to the end of the fixing ring 293 away from the load-bearing block 291. Pressure columns 297 are symmetrically arranged on the inner wall of the rotating ring 296, and the inner wall of the rotating ring 296 is slidably connected to the outer surface of the pressure columns 297. A second spring 298 is sleeved on the outer surface of the pressure column 297. A pressure plate 299 is fixedly connected to the end of the pressure column 297 near the second spring 298. A cleaning plate 2910 is slidably connected to the end of the pressure plate 299 that is close to the spring. Fixed long columns 2911 are symmetrically arranged on the pressure plate 299, and the outer surface of the pressure plate 299 is connected to both ends of the fixed long columns 2911. A scraper 2912 is fixedly connected to the outer surface of the fixed column 2911, which can clean the surface of the steel pipe and remove impurities. The steel pipe is placed on the load-bearing block 291, and the roller 292 ensures that it can be pushed forward better, ensuring that the brush 294 is in contact with the surface of the steel pipe. If the steel pipe is placed directly, the brush 294 will be flattened and lose its cleaning effect. The brush 294 brushes away the impurities on the surface. Due to the deformation caused by the compression of the steel pipe, the brush 294 will scrape the scraper ring 295. The scraper ring 295 will remove the impurities attached to the brush 294. When the steel pipe is pushed forward, the spring 298 will push the pressure plate 299, so that the cleaning plate 2910 comes into contact with the steel pipe and wipes away the impurities loosened by the brush 294 on the surface of the steel pipe. After cleaning, the cleaning plate 2910 is fixed, and the rotating ring 296 is rotated so that the scraper 2912 cleans the surface of the cleaning plate 2910.

[0036] The heat storage device 3 includes a heat storage box 31. Ventilation pipes 32 are symmetrically arranged on the outer surface of the heat storage box 31, and the outer surface of the heat storage box 31 is fixedly connected to the end of the ventilation pipes 32 away from the annealing furnace 1. A filter box 33 is fixedly connected to the top of the heat storage box 31. An agitator 34 is fixedly connected to the inner wall of the filter box 33. An exhaust pipe 35 is fixedly connected to the outer surface of the filter box 33. An exhaust fan 36 is fixedly connected to the top of the filter box 33. The exhaust fan 36 can filter out the exhaust gas and store the heat energy, so that when the annealing furnace 1 needs to be heated, the heat can be quickly replenished without wasting excess fuel. The exhaust gas is drawn into the filter box 33 by the exhaust fan 36. Activated carbon is placed in the filter box 33. The exhaust gas flows into the heat storage box 31 through adsorption by the activated carbon.

[0037] The stirring component 34 includes a hemispherical 331, with an arc-shaped strip 332 fixedly connected to the middle of the hemispherical 331, and three of them are evenly arranged. A stirring plate 333 is fixedly connected to the bottom of the arc-shaped strip 332. A vortex cylinder 334 is fixedly connected to the top of the hemispherical 331. A semi-circular plate 335 is fixedly connected to the outer surface of the vortex cylinder 334, and three of them are evenly arranged. A fixed cylinder 336 is rotatably connected to the top of the vortex cylinder 334. A circular frame 337 is fixedly connected to the outer surface of the fixed cylinder 336. The added activated carbon can be evenly spread in the filter box 33. Since the upper layer of activated carbon will lose its activity first, the stirring makes the deactivation of activated carbon uniform, avoids waste, and ensures its filtration effect. The air blower 36 pushes the semi-circular plate 335, causing the vortex cylinder 334 to rotate, the arc-shaped strip 332 to rotate, and the stirring plate 333 to evenly spread the activated carbon.

[0038] The heat utilization device 4 includes an outer barrel 41, an outer pipe 42 fixedly connected to the inner wall of the outer barrel 41, a spiral pipe 43 fixedly connected to one end of the outer pipe 42 near the outer barrel 41, an inner barrel 44 fixedly connected to the bottom of the inner wall of the outer barrel 41, a U-tube 45 fixedly connected to the end of the spiral pipe 43 away from the outer pipe 42, an outer disc 46 fixedly connected to the top of the outer barrel 41, an inner disc 47 fixedly connected to the bottom of the inner wall of the outer disc 46, air holes 48 opened on the outer surface of the inner disc 47, a short column 410 fixedly connected to the top of the outer disc 46, a sleeve column 411 rotatably connected to the bottom of the inner wall of the short column 410, three rotating blades 412 fixedly connected to the outer surface of the sleeve column 411, and a leveling component 49 fixedly connected to the bottom of the sleeve column 411, which can fully utilize the residual heat of the annealing furnace 1. To ensure that the residual heat of the annealing furnace 1 is not wasted, the outer tube 42 and the spiral tube 43 are made of copper, which has better thermal conductivity. The heat and the generated exhaust gas are conducted through the spiral tube 43 to the U-shaped tube and into the short column 410, driving the rotor 412 to rotate. Water is added to the outer barrel 41 and the inner barrel 44, and the deactivated activated carbon is added to the inner plate 47. The spiral tube 43 can quickly heat the water and generate a large amount of steam. The steam regenerates the activated carbon through the vent 48. Since the diameter of the inner barrel 44 is smaller at the top and larger at the bottom, the steam flow rate from the inner barrel 44 is faster. Through the slow steam from the outer barrel 41 and the fast steam from the inner barrel 44, the activated carbon can be regenerated better, and the high-temperature exhaust gas can be cooled through the spiral tube 43, which facilitates subsequent filtration.

[0039] The leveling component 49 includes a short shaft 491. A bent rod 492 is fixedly connected to the bottom of the short shaft 491. Connecting rods 493 are fixedly connected to both ends of the bent rod 492. A fitting rod 494 is fixedly connected to the end of the connecting rod 493 away from the bent rod 492. A baffle plate 495 is fixedly connected to the top of the fitting rod 494. Short sleeves 496 are evenly distributed on the outer surface of the bent rod 492, and the outer surface of the bent rod 492 is rotatably connected to the inner wall of the short sleeves 496. An inclined plate 497 is fixedly connected to the outer surface of the short sleeves 496. A square groove 498 is formed on the outer surface of the inclined plate 497. A short rod 499 is fixedly connected to the inner wall of the square groove 498. A hook 4910 is fixedly connected to the end of the inclined plate 497 away from the short sleeves 496. This allows the activated carbon and steam to fully contact, ensuring its regeneration effect and preventing... Localized accumulation leads to excessively high temperatures, causing the activated carbon to lose its activity. Rotation of the sleeve column 411 drives the short shaft 491 to rotate, and the bent rod 492 agitates the activated carbon. Since the inner disk 47 is arc-shaped, some activated carbon accumulates in the center. The conforming rod 494, a curved rod extending from the edge of the inner disk 47 towards the center, along with the baffle plate 495, evenly spreads the activated carbon from the center outwards, preventing localized accumulation. Through rotation, the inclined plate 497 contacts the activated carbon, turning the bottom activated carbon upwards, allowing the upper layer of activated carbon to better contact with steam. The hook 4910 can be inserted into the activated carbon, allowing the inclined plate 497 to better reach the bottom of the activated carbon. The activated carbon passes through the square groove 498 and the short rod 499 to prevent sticking in the activated carbon tank, which would hinder proper contact with steam.

[0040] like Figures 1-8 As shown, this invention provides a cold rolling annealing furnace 1 for stainless steel.

[0041] The specific workflow is as follows:

[0042] During operation, if it is a steel plate, place the steel plate on the plate cleaning component 27, adjust the slider 26 to make the scraper 2710 contact the steel plate, adjust the distance between the sleeves 277 to clean steel plates of different sizes, push the steel plate, and the scraper 2710 scrapes the impurities on the surface of the steel plate. Rotate the rotating column 275 to move the scraper 2710 downward, and the moving rod 2712 moves in the arc groove 2711. With the help of the gravity ball, the moving speed is faster. The cleaning plate 2715 cleans the surface of the scraper 2710. The steel plate moves forward again, and the cleaning shaft 274 performs a second cleaning on the surface of the steel plate. If it is a tubular workpiece, place the steel pipe... The roller 292 ensures better forward movement on the load-bearing block 291. The brush 294 removes surface impurities. The brush 294, deformed by the pressure of the steel pipe, scrapes against the scraper ring 295, which removes the impurities adhering to the brush 294. Spring 298 pushes the pressure plate 299, causing the cleaning plate 2910 to contact the steel pipe, wiping away the impurities loosened by the brush 294. After cleaning, the cleaning plate 2910 is fixed, and the rotating ring 296 is rotated, causing the scraper 2912 to clean the surface of the cleaning plate 2910. The motor 23 is then turned on, and the steel belt 22... The workpiece is brought into the annealing furnace 1. Exhaust gas enters the outer pipe 42, is drawn in by the exhaust fan 36, and is conducted through the spiral pipe 43 to the U-shaped pipe, entering the short column 410. This drives the rotating blade 412 to rotate. Activated carbon is added into the filter box 33, and the exhaust gas is drawn into the filter box 33. The exhaust fan 36 then drives the semi-circular plate 335, causing the rotating cylinder 334 to rotate. The arc-shaped strip 332 rotates, and the stirring plate 333 evenly spreads the activated carbon. The heated exhaust gas flows into the heat storage box 31 after being filtered by the activated carbon. When the annealing furnace 1 needs to be heated, the heat in the heat storage box 31 is injected into the annealing furnace 1 through the vent pipe 32. The processed workpiece is transported to the air-cooled box 5 by the steel belt 22. Water is injected into the inner barrel 44 and the outer barrel 41. The deactivated activated carbon is taken out and placed on the inner plate 47. The residual heat and exhaust gas heating are passed through the spiral tube 43 to heat the water in the inner barrel 44 and the outer barrel 41 to generate steam. The exhaust gas drives the vane 412 to rotate, the short shaft 491 to rotate, the bent rod 492 to stir the activated carbon, the inclined plate 497 to contact the activated carbon, and flip the bottom activated carbon to the top so that the upper activated carbon can also have better contact with the steam. The hook 4910 can be inserted into the activated carbon so that the inclined plate 497 can better enter the bottom of the activated carbon and flip the activated carbon.

[0043] Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A cold-rolled annealing furnace for stainless steel, comprising an annealing furnace (1), characterized in that: The annealing furnace (1) is equipped with a conveying device (2) inside, and the bottom of the inner wall of the annealing furnace (1) is fixedly connected to the bottom of the conveying device (2). The top of the annealing furnace (1) is fixedly connected to a heat storage device (3), and the outer surface of the annealing furnace (1) is fixedly connected to a heat utilization device (4). The end of the conveying device (2) away from the annealing furnace (1) is fixedly connected to an air cooling box (5). The conveying device (2) includes a fixed frame (21), inside which a steel belt (22) is provided. The top of the fixed frame (21) is in contact with the bottom of the steel belt (22). A motor (23) is fixedly connected to the outer surface of the fixed frame (21). A fixed rod (24) is symmetrically arranged at the end of the fixed frame (21) away from the motor (23). The inner wall of the fixed frame (21) is rotatably connected to the outer surface of the fixed rod (24). A sliding groove (25) is opened on the outer surface of the fixed frame (21). A slider (26) is slidably connected to the inner wall of the sliding groove (25). A plate-shaped cleaning component (27) is fixedly connected to the end of the slider (26) away from the fixed rod (24). A base plate (28) is fixedly connected to the end of the fixed frame (21) close to the fixed rod (24). A tubular cleaning component (29) is fixedly connected to the top of the base plate (28). The plate-shaped cleaning component (27) includes a U-shaped plate (271), a rotating plate (272) is symmetrically arranged on the top of the U-shaped plate (271), and the top of the U-shaped plate (271) is fixedly connected to the bottom of the rotating plate (272). A rotating shaft (273) is fixedly connected to the outer surface of the rotating plate (272), and a cleaning shaft (274) is rotatably connected to the outer surface of the rotating shaft (273). A roller (276) is rotatably connected to the end of the U-shaped plate (271) away from the rotating plate (272), and a rotating column (275) is fixedly connected to the end of the roller (276) away from the U-shaped plate (271). Sleeves (277) are evenly arranged on the outer surface of the roller (276), and the outer surface of the roller (276) is slidably connected to the inner wall of the sleeve (277). The outer surface of the sleeve (277) is uniformly provided with sliding rods (278), and the outer surface of the sleeve (277) is fixedly connected to one end of the sliding rod (278) near the roller (276). The outer surface of the sliding rod (278) is slidably connected with a scraper (2710), and a spring (279) is sleeved on the outer surface of the sliding rod (278). The outer surface of the scraper (2710) is provided with an arc-shaped groove (2711), and a moving rod (2712) is slidably connected to the inner wall of the arc-shaped groove (2711). The two ends of the moving rod (2712) are fixedly connected with counterweight balls (2713), and the outer surface of the counterweight balls (2713) is fixedly connected with an elastic rod (2714). The end of the elastic rod (2714) away from the counterweight balls (2713) is fixedly connected with a cleaning plate (2715).

2. The cold rolling annealing furnace (1) for stainless steel according to claim 1, characterized in that: The tubular cleaning component (29) includes a fixing frame (21) and a load-bearing block (291). A roller (292) is rotatably connected to the top of the load-bearing block (291). A fixing ring (293) is fixedly connected to the outer surface of the load-bearing block (291). A brush (294) is fixedly connected to the inner wall of the fixing ring (293). A scraper ring (295) is fixedly connected to the inner wall of the fixing ring (293). A rotating ring (296) is rotatably connected to the end of the fixing ring (293) away from the load-bearing block (291). Pressure columns (297) are symmetrically arranged on the inner wall of the rotating ring (296). The inner wall of the ring (296) is slidably connected to the outer surface of the pressure column (297). A second spring (298) is sleeved on the outer surface of the pressure column (297). A pressure plate (299) is fixedly connected to one end of the pressure column (297) near the second spring (298). A cleaning plate (2910) is slidably connected to one end of the pressure plate (299) away from the spring. Fixed long columns (2911) are symmetrically arranged on the pressure plate (299). The outer surface of the pressure plate (299) is fixedly connected to both ends of the fixed long columns (2911). A scraper (2912) is fixedly connected to the outer surface of the fixed long columns (2911).

3. The cold rolling annealing furnace (1) for stainless steel according to claim 1, characterized in that: The heat storage device (3) includes a heat storage box (31). Ventilation pipes (32) are symmetrically arranged on the outer surface of the heat storage box (31). The outer surface of the heat storage box (31) is fixedly connected to the end of the ventilation pipe (32) away from the annealing furnace (1). A filter box (33) is fixedly connected to the top of the heat storage box (31). An agitator (34) is fixedly connected to the inner wall of the filter box (33). An exhaust pipe (35) is fixedly connected to the outer surface of the filter box (33). A vacuum pump (36) is fixedly connected to the top of the filter box (33).

4. The cold rolling annealing furnace (1) for stainless steel according to claim 3, characterized in that: The stirring component (34) includes a hemisphere (331), an arc-shaped strip (332) is fixedly connected to the middle of the hemisphere (331), and three of them are evenly arranged. A stirring plate (333) is fixedly connected to the bottom of the arc-shaped strip (332). A rotating cylinder (334) is fixedly connected to the top of the hemisphere (331). A semi-circular plate (335) is fixedly connected to the outer surface of the rotating cylinder (334), and three of them are evenly arranged. A fixed cylinder (336) is rotatably connected to the top of the rotating cylinder (334), and a circular frame (337) is fixedly connected to the outer surface of the fixed cylinder (336).

5. The cold rolling annealing furnace (1) for stainless steel according to claim 1, characterized in that: The heat utilization device (4) includes an outer barrel (41), an outer tube (42) is fixedly connected to the inner wall of the outer barrel (41), a spiral tube (43) is fixedly connected to one end of the outer tube (42) near the outer barrel (41), an inner barrel (44) is fixedly connected to the bottom of the inner wall of the outer barrel (41), a U-tube (45) is fixedly connected to one end of the spiral tube (43) away from the outer tube (42), an outer disc (46) is fixedly connected to the top of the outer barrel (41), an inner disc (47) is fixedly connected to the bottom of the inner wall of the outer disc (46), an air hole (48) is opened on the outer surface of the inner disc, a short column (410) is fixedly connected to the top of the outer disc (46), a sleeve column (411) is rotatably connected to the bottom of the inner wall of the short column (410), a rotating blade (412) is fixedly connected to the outer surface of the sleeve column (411), and the number of rotating blades (412) is three, and a flattening component (49) is fixedly connected to the bottom of the sleeve column (411).

6. The cold rolling annealing furnace (1) for stainless steel according to claim 5, characterized in that: The leveling component (49) includes a short shaft (491), a bent rod (492) is fixedly connected to the bottom of the short shaft (491), a connecting rod (493) is fixedly connected to both ends of the bent rod (492), a fitting rod (494) is fixedly connected to the end of the connecting rod (493) away from the bent rod (492), a baffle plate (495) is fixedly connected to the top of the fitting rod (494), short sleeves (496) are evenly arranged on the outer surface of the bent rod (492), and the outer surface of the bent rod (492) is rotatably connected to the inner wall of the short sleeves (496). An inclined plate (497) is fixedly connected to the outer surface of the short sleeves (496), a square groove (498) is opened on the outer surface of the inclined plate (497), a short rod (499) is fixedly connected to the inner wall of the square groove (498), and a hook (4910) is fixedly connected to the end of the inclined plate (497) away from the short sleeves (496).

7. The cold rolling annealing furnace (1) for stainless steel according to claim 4, characterized in that: The filter box (33) is fixed on the outer surface of the circular frame (337), and the bottom of the stirring plate (333) is in contact with the bottom of the inner wall of the filter box (33).

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