Annealing furnace port rolling sealing device

Abstract

The utility model discloses an annealing furnace mouth rolling sealing device relates to metal material processing technical field, and the utility model discloses a pair of symmetry distribution of two of sealing framework is equipped with, and one side of sealing framework is equipped with sealing mechanism, is used for carrying out sealing treatment to annealing furnace mouth, and sealing mechanism includes: adjusting assembly includes the sealing roller seat of a group of setting at both sides of sealing framework, and the application can pass through the meshing drive of worm wheel and worm and the thread drive of screw rod, and the spacing of upper and lower sealing steel roller can be adjusted flexibly according to the thickness of steel band under the spacing effect of spacing groove to sealing roller seat, which can guarantee that steel band passes smoothly, can effectively prevent the overflow of high-temperature gas in the furnace, significantly improves the sealing performance of annealing furnace mouth, reduces energy consumption, helps to keep the stability of the temperature in the furnace, makes steel band annealing treatment in the uniform temperature field, reduces the product quality problem caused by the uneven temperature.

Description

Technical Field

[0001] This utility model relates to the field of metal material processing technology, specifically to a rolling sealing device for the opening of an annealing furnace. Background Technology

[0002] In the field of metal processing, annealing furnaces are key equipment for annealing metals. By heating metals (such as steel strips) to an appropriate temperature and holding it for a certain time, followed by cooling at a suitable rate, the microstructure and properties of the metals can be effectively improved.

[0003] Referring to the patent document: Patent Publication No. CN217715941U, Patent Publication Date 2022-11-01, a sealing device for the furnace mouth of an annealing furnace is disclosed. The annealing furnace includes a sealing movable hole on its upper surface. Two fixed plates are installed inside the sealing movable hole, and a sealing block is installed between the two fixed plates. A refractory rubber block is installed on the outer surface of each fixed plate. A support base is installed above the fixed plates, and two lifting lugs are symmetrically installed above the support base. A pull rod is installed above the lifting lugs, a connecting buckle is installed above the pull rod, a locking buckle is installed above the connecting buckle, and a steel wire rope is connected above the locking buckle. This sealing device for the furnace mouth of an annealing furnace achieves a sealed cover by controlling the up-and-down movement of the fixed plates and sealing blocks. This prevents equipment accidents caused by the leakage of flue gas from the furnace mouth and premature shutdown due to equipment damage in the area, effectively ensuring the sealing performance of the annealing furnace on the production line and the safety of operators working in the furnace mouth area.

[0004] Based on the search of patent numbers and the shortcomings of existing technologies, the following was found:

[0005] Currently, most existing annealing furnace mouth sealing devices adopt fixed structures or simple elastic sealing structures. Fixed structure sealing devices are difficult to flexibly adjust the sealing gap according to the different thicknesses of the steel strip to be annealed. When the thickness of the steel strip changes, the sealing is prone to failure, resulting in serious heat loss in the furnace and a significant increase in energy consumption. Although the elastic sealing structure can adapt to the changes in steel strip thickness to a certain extent, the elastic material is prone to wear, aging and deformation with the increase of service time, and the sealing performance gradually declines. Frequent replacement of sealing components is required, which increases equipment maintenance costs and downtime, and reduces production efficiency.

[0006] Therefore, this utility model provides a rolling sealing device for the furnace mouth of an annealing furnace. Utility Model Content

[0007] To address the problem that existing sealing devices for annealing furnaces cannot be adjusted according to the size of the annealed metal workpieces, the purpose of this invention is to provide a rolling sealing device for the furnace opening of an annealing furnace.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a rolling sealing device for the opening of an annealing furnace, comprising a sealing frame, wherein two sealing frames are symmetrically distributed, and a sealing mechanism is provided on one side of the sealing frame for sealing the opening of the annealing furnace. The sealing mechanism includes:

[0009] The adjusting assembly includes a set of sealing roller seats on both sides of the sealing frame. A screw is fixedly installed in the middle of one side of each of the four sealing roller seats. A set of housings is fixedly installed in the middle of the middle of each of the two sealing frames. A worm gear is rotatably installed in the middle of the middle of each of the two housings. A worm is rotatably installed in the middle of one side of each of the two housings. Both worms are meshed with the worm gear. Both screws are threaded in the middle of the worm gear. Two symmetrically distributed rotating shafts are provided on one side of the middle of the two sealing frames. The two ends of the two rotating shafts are fixedly installed in the opposite ends of the worm. Sealing steel rollers are fixedly installed in the middle of the opposite sides of the two sets of sealing roller seats.

[0010] The tensioning assembly, located on the upper part of the sealing frame, is used to adjust the tension of the sealing device.

[0011] Preferably, the tensioning assembly includes a set of fixing plates fixed on both sides of the sealing frame. Bolts are rotatably installed on one side of each of the four fixing plates. Sliding blocks are threadedly installed in the middle of each of the bolts. Two symmetrically distributed limiting shafts are provided opposite each other in the middle of the four fixing plates. The two ends of the two limiting shafts are fixedly installed in the middle of the opposite side of the sliding blocks. Two symmetrically distributed support shafts are provided on the other side of the upper part of the fixing plates. The two ends of the two support shafts are fixedly installed in the middle of the opposite side of the fixing plates.

[0012] Preferably, the fixing plate has two symmetrically distributed wool blankets in the middle. One end of the wool blanket is installed on the upper part of the sealing steel roller, and the other end of the wool blanket is installed on the upper part of the limiting shaft. The middle part of the wool blanket is in contact with the outer surface of the support shaft.

[0013] Preferably, each of the two sealing skeletons has two symmetrically distributed limiting grooves in the middle, and one side of each of the multiple sealing roller seats is slidably engaged in the middle of the limiting groove.

[0014] Preferably, both ends of the plurality of worm gears rotatably pass through the middle of one side of the housing, and a handle is fixedly installed at the end of the plurality of worm gears away from the axis of rotation.

[0015] Preferably, each of the four fixed plates has two symmetrically distributed sliding grooves on one side of its upper part, and each of the four sliding blocks has a slider fixedly installed at both ends, with the sliders slidably locked in the middle of the sliding groove.

[0016] Beneficial effects

[0017] This invention provides a rolling sealing device for the furnace mouth of an annealing furnace. Compared with the prior art, it has the following advantages:

[0018] 1. This application utilizes the meshing transmission of a worm gear and a worm, along with the threaded transmission of a screw, to limit the position of the sealing roller seat via a limiting groove. This allows for flexible adjustment of the distance between the upper and lower sealing rollers based on the thickness of the steel strip. This ensures smooth passage of the steel strip while effectively preventing the escape of high-temperature gas from the furnace. It significantly improves the sealing performance of the annealing furnace opening, reduces energy consumption, helps maintain stable furnace temperature, and enables the steel strip to undergo annealing in a uniform temperature field, reducing product quality problems caused by uneven temperature.

[0019] 2. This application adjusts the position of the sliding block by rotating the bolt and using threaded transmission, thereby changing the relative position of the limiting shaft and the support shaft, realizing flexible adjustment of the tension of the wool blanket. It can adapt to the wear and deformation of the wool blanket during long-term use, ensuring that the wool blanket always maintains close contact with the steel belt surface, further enhancing the sealing effect and extending the service life of the sealing device. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 This is a schematic diagram of the tensioning component structure of this utility model.

[0022] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle.

[0023] Figure 4 This is a schematic diagram of the adjustment component structure of this utility model.

[0024] Figure 5 This utility model Figure 4 Enlarged view of point B in the middle.

[0025] In the diagram: 1. Sealing frame; 2. Sealing mechanism; 21. Adjustment component; 211. Housing; 212. Screw; 213. Worm gear; 214. Worm; 215. Rotating shaft; 216. Handle; 217. Sealing roller seat; 218. Limiting groove; 219. Sealing steel roller; 22. Tensioning component; 221. Fixing plate; 222. Sliding block; 223. Sliding block; 224. Slide groove; 225. Bolt; 226. Limiting shaft; 227. Wool blanket; 228. Support shaft. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-5 This utility model provides a technical solution: a rolling sealing device for the opening of an annealing furnace, comprising a sealing frame 1, two symmetrically distributed sealing frames 1, and a sealing mechanism 2 on one side of the sealing frame 1 for sealing the opening of the annealing furnace. The sealing mechanism 2 includes:

[0028] The adjusting assembly 21 includes a set of sealing roller seats 217 disposed on both sides of the sealing frame 1. Each of the four sealing roller seats 217 has a screw 212 fixedly installed in the middle of one side. Each of the two sealing frames 1 has a set of housings 211 fixedly installed in one side. Each of the two sets of housings 211 has a worm gear 213 rotatably installed in the middle of one side. Each of the two sets of housings 211 has a worm 214 rotatably installed in one side. Both sets of worms 214 are meshed with the worm gear 213. The housings 211 are integrally formed from high-strength alloy steel and are precision machined to form a cavity structure suitable for the transmission of the worm gear 213 and worm 214. Each of the two sets of screws 212 is threadedly installed in the middle of the worm gear 213. Each of the two sealing frames 1 has two symmetrically distributed rotating shafts 215 on one side of the middle. Both ends of the two rotating shafts 215 are fixedly installed on the opposite sides of the worm 214. Each of the two sets of sealing roller seats 217 has a sealing steel roller 219 fixedly installed in the middle of the opposite sides.

[0029] Tensioning assembly 22 is disposed on the upper part of sealing frame 1 and is used to adjust the tension of its sealing device.

[0030] The tensioning assembly 22 includes a set of fixing plates 221 fixed on both sides of the sealing frame 1. Bolts 225 are rotatably installed on one side of each of the four fixing plates 221. Sliding blocks 222 are threadedly installed in the middle of each of the bolts 225. Two symmetrically distributed limiting shafts 226 are provided opposite each other in the middle of the four fixing plates 221. The two ends of the two limiting shafts 226 are fixedly installed in the middle of the opposite side of the sliding blocks 222. Two symmetrically distributed support shafts 228 are provided on the other side of the upper part of the fixing plates 221. The two ends of the two support shafts 228 are fixedly installed in the middle of the opposite side of the fixing plates 221.

[0031] Two symmetrically distributed wool blankets 227 are provided in the middle of the fixing plate 221. The wool blankets 227 are made of high-quality wool and are treated with special weaving technology and oil and water resistance, which gives them good sealing performance and durability. The wool blankets 227 are in contact with the steel belt, which can provide support and guidance for the steel belt while ensuring the sealing effect. This keeps the steel belt running stably when entering and exiting the furnace, and avoids problems such as belt deviation and shaking. This helps to improve the continuity and stability of production. One end of the wool blanket 227 is installed on the upper part of the sealing steel roller 219, and the other end of the wool blanket 227 is installed on the upper part of the limiting shaft 226. The middle part of the wool blanket 227 is in contact with the outer surface of the support shaft 228. The surface of the support shaft 228 is provided with anti-slip texture to prevent the wool blanket 227 from slipping on the support shaft 228.

[0032] Two symmetrically distributed limiting grooves 218 are opened in the middle of the two sealing skeletons 1. One side of the multiple sealing roller seats 217 is slidably locked in the middle of the limiting grooves 218. The limiting grooves 218 can limit the sealing roller seats 217, ensuring that the sealing roller seats 217 can be moved by the screw 212 under the transmission of the worm gear 213 and worm 214, thereby adjusting the position of the sealing steel roller 219.

[0033] Both ends of multiple worm gears 214 rotate through the middle of one side of the housing 211. Each end of multiple worm gears 214 away from the rotating shaft 215 is fixedly equipped with a handle 216. The surface of the handle 216 is covered with an anti-slip rubber layer, which makes it easy for the operator to hold and rotate. By rotating the handle 216, the worm gear 214 can be driven to rotate.

[0034] Two symmetrically distributed grooves 224 are provided on the upper side of each of the four fixed plates 221. Slider blocks 223 are fixedly installed at both ends of the four sliding blocks 222. Multiple sliders 223 are slidably locked in the middle of the grooves 224. The cross-sectional shape of the grooves 224 is T-shaped, which can effectively limit the sliders 223 and prevent the sliding blocks 222 from tipping over or shifting during movement.

[0035] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0036] During operation, the sealing frame 1 is installed at the inlet and outlet of the annealing furnace via a flange connection. By simultaneously rotating the two upper handles 216, the upper worm gear 214 is driven to rotate. Under the transmission of its rotating shaft 215, the two worm gears 214 can rotate synchronously. Under the threaded transmission of the two screws 212, the two sealing roller seats 217 move along the direction of the limiting groove 218 through the limiting groove 218. The lower sealing roller seat 217 moves in the same way, which can drive the sealing steel roller 219 to move, thereby adjusting the distance between the upper and lower steel rollers so that the steel strip to be annealed can pass smoothly into the annealing furnace and be sealed at the same time.

[0037] After adjustment, the position of the sliding block 222 can be adjusted by rotating the bolt 225 under its threaded transmission, thereby adjusting the relative position of the limiting shaft 226 and the support shaft 228, so that when they are close together, the wool blanket 227 is relaxed, and when they are far apart, the wool roll is tightened.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rolling sealing device for the opening of an annealing furnace, comprising a sealing frame (1), characterized in that: The sealing frame (1) has two symmetrically distributed parts, and a sealing mechanism (2) is provided on one side of the sealing frame (1) for sealing the furnace opening of the annealing furnace. The sealing mechanism (2) includes: The adjusting assembly (21) includes a set of sealing roller seats (217) arranged on both sides of the sealing frame (1). Each of the four sealing roller seats (217) has a screw (212) fixedly installed in the middle of one side. Each of the two sealing frames (1) has a set of housings (211) fixedly installed in one side. Each of the two housings (211) has a worm gear (213) rotatably installed in the middle of one side. Each of the two housings (211) has a worm (214) rotatably installed in one side. Each of the two worms (214) is meshed with the worm gear (213). Each of the two screws (212) is threaded in the middle of the worm gear (213). Each of the two sealing frames (1) has two symmetrically distributed rotating shafts (215) on one side of the middle. Both ends of the two rotating shafts (215) are fixedly installed in the opposite side of the worm (214). Each of the two sets of sealing roller seats (217) has a sealing steel roller (219) fixedly installed in the middle of the opposite side. Tensioning assembly (22) is located on the upper part of sealing frame (1) and is used to adjust the tension of its sealing device.

2. The rolling sealing device for the annealing furnace opening according to claim 1, characterized in that: The tensioning assembly (22) includes a set of fixing plates (221) fixed on both sides of the sealing frame (1). Bolts (225) are rotatably installed on one side of each of the four fixing plates (221). Sliding blocks (222) are threadedly installed in the middle of each of the bolts (225). Two symmetrically distributed limiting shafts (226) are provided in the middle of the four fixing plates (221). Both ends of the two limiting shafts (226) are fixedly installed in the middle of the opposite side of the sliding block (222). Two symmetrically distributed support shafts (228) are provided on the other side of the upper part of the fixing plate (221). Both ends of the two support shafts (228) are fixedly installed in the middle of the opposite side of the fixing plate (221).

3. The rolling sealing device for the annealing furnace opening according to claim 2, characterized in that: The fixing plate (221) has two symmetrically distributed wool blankets (227) in the middle. One end of the wool blanket (227) is installed on the upper part of the sealing steel roller (219), and the other end of the wool blanket (227) is installed on the upper part of the limiting shaft (226). The middle part of the wool blanket (227) is in contact with the outer surface of the support shaft (228).

4. The rolling sealing device for the annealing furnace opening according to claim 1, characterized in that: Two symmetrically distributed limiting grooves (218) are opened in the middle of the two sealing skeletons (1), and one side of the multiple sealing roller seats (217) is slidably locked in the middle of the limiting grooves (218).

5. The rolling sealing device for the annealing furnace opening according to claim 1, characterized in that: Both ends of the plurality of worm gears (214) rotate through the middle of one side of the housing (211), and a handle (216) is fixedly installed at the end of the plurality of worm gears (214) away from the pivot (215).

6. The rolling sealing device for the annealing furnace opening according to claim 2, characterized in that: Each of the four fixed plates (221) has two symmetrically distributed sliding grooves (224) on one side of its upper part. Each of the four sliding blocks (222) has a slider (223) fixedly installed at both ends. Multiple sliders (223) are slidably locked in the middle of the sliding groove (224).

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