Furnace mouth sealing adjusting device for annealing furnace

Abstract

The utility model discloses a furnace mouth sealing adjusting device for an annealing furnace, which comprises an annealing furnace shell, a sealing plate, a first unwinding frame, a second unwinding frame, a first compression roller and a second compression roller, a first support obliquely extending towards the lower portion of the outer side is arranged at the top of the sealing plate, a first lifting frame corresponding to the first pressing roller is arranged below the first support, a first wool felt is arranged on the first unwinding frame in a winding mode, and the front end of the first wool felt extends downwards to pass through the bottom of the first pressing roller and then extends forwards. A second support obliquely extending towards the upper portion of the outer side is arranged at the bottom of the sealing plate, a second wool felt is arranged on the second unwinding frame in a winding mode, and the front end of the second wool felt extends upwards, passes through the top of the second pressing roller and then extends forwards. According to the furnace mouth sealing adjusting device for the annealing furnace, the first wool felt and the second wool felt are stable in structure and easy and convenient to replace and operate.

Description

Technical Field

[0001] The utility model relates to the technical field of annealing furnaces, in particular to a furnace mouth sealing and adjusting device for an annealing furnace. Background Technique

[0002] In the production process of steel strips, heat treatment is required in an annealing furnace. Since the steel strips are continuously produced and have a relatively large length, the annealing furnace needs to be open to facilitate the entry and exit of the steel strips. However, the open part is likely to cause heat loss and increase energy consumption. Therefore, sealing treatment is required.

[0003] In the prior art, wool felt is mostly used for sealing the annealing furnace. However, the wool felt is easily damaged and needs to be frequently replaced, and the replacement process of the wool felt is relatively complicated. The utility model patent with the authorization announcement number CN214270977U discloses an annealing furnace that is convenient for replacing the wool felt at the sealing port. By rotating the adjusting screw rod, the first roller can be rotated, and then the pressing roller can be rotated, so that the new wool felt can be rolled into the sealing port and the old wool felt can be taken out at the same time. However, it is necessary to rotate the first roller, and the operation is relatively strenuous. Moreover, the advancing direction of the wool felt is opposite to the discharging direction of the steel strip, which increases the resistance of the wool felt roll entering the annealing furnace and needs to be improved. Content of the Utility Model

[0004] The purpose of the utility model is to provide a furnace mouth sealing and adjusting device for an annealing furnace to seal the furnace mouth of the annealing furnace and improve the convenience of replacing the wool felt.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A furnace mouth sealing and adjusting device for an annealing furnace, comprising: an annealing furnace shell, a sealing plate, a first unwinding rack, a second unwinding rack, a first pressing roller and a second pressing roller. The sealing plate is vertically arranged at the front furnace mouth of the annealing furnace shell. A steel belt outlet is horizontally arranged in the sealing plate. The first pressing roller and the second pressing roller are arranged at intervals above and below in front of the steel belt outlet. A first bracket extending obliquely downward and outward is arranged at the top of the sealing plate. A first lifting frame corresponding to the first pressing roller is arranged below the first bracket. The first unwinding rack is arranged at the front end of the top of the annealing furnace shell. A first wool felt is wound on the first unwinding rack. The front end of the first wool felt extends downward, passes through the bottom of the first pressing roller and then extends forward. A second bracket extending obliquely upward and outward is arranged at the bottom of the sealing plate. A second lifting frame corresponding to the second pressing roller is arranged above the second bracket. The second unwinding rack is arranged at the front end of the bottom of the annealing furnace shell. A second wool felt is wound on the second unwinding rack. The front end of the second wool felt extends upward, passes through the top of the second pressing roller and then extends forward. A first clamping plate extending obliquely backward and upward is arranged on the first lifting frame and cooperates with the sealing plate to clamp the first wool felt. A second clamping plate extending obliquely backward and downward is arranged on the second lifting frame and cooperates with the sealing plate to clamp the second wool felt.

[0007] Wherein, a first lifting driving device extending obliquely downward and backward and connected to the first lifting frame is vertically arranged on the first bracket.

[0008] Wherein, the first lifting driving device adopts a cylinder or a hydraulic cylinder.

[0009] Wherein, a second lifting driving device extending obliquely downward and upward and connected to the second lifting frame is vertically arranged on the second bracket.

[0010] Wherein, the second lifting driving device adopts a cylinder or a hydraulic cylinder.

[0011] Wherein, vertical surfaces parallel to the sealing plate are respectively arranged at the ends of the first clamping plate and the second clamping plate.

[0012] The beneficial effects of the utility model: A furnace mouth sealing and adjusting device for an annealing furnace. During normal operation, the first pressing roller and the second pressing roller are used to press the first wool felt and the second wool felt on both sides of the steel belt in front of the steel belt outlet to seal the furnace mouth, reduce heat loss, and the first clamping plate and the second clamping plate are used to clamp and lock the first wool felt and the second wool felt to prevent the movement of the first wool felt and the second wool felt, with high stability and good heat preservation effect. After the first wool felt and the second wool felt are damaged, the first lifting frame moves upward, the second lifting frame moves downward, and the first wool felt and the second wool felt are unlocked. The first wool felt and the second wool felt can be updated with the outward movement of the steel belt through the passive unwinding of the first unwinding rack and the second unwinding rack, and the operation is simple. Description of the Drawings

[0013] Figure 1 is a schematic structural diagram of the present utility model;

[0014] Figure 2 is Figure 1 a schematic structural diagram after the first pressing roller is lifted in Detailed Embodiments

[0015] The following combines Figures 1 to 2 and further illustrates the technical solution of the present utility model through specific embodiments.

[0016] As Figure 1 shown, a furnace mouth sealing and adjusting device for an annealing furnace, which is used for annealing of steel strips, includes: an annealing furnace housing 1, a sealing plate 2, a first unwinding rack 4, a second unwinding rack 17, a first pressing roller 9, and a second pressing roller 13. The sealing plate 2 is vertically arranged at the front furnace mouth of the annealing furnace housing 1, and the sealing plate 2 is welded or fixed to the annealing furnace housing 1 with screws, and the structure is firm.

[0017] A steel strip outlet 3 is horizontally arranged in the sealing plate 2 for sending out the steel strip 10. The first pressing roller 9 and the second pressing roller 13 are arranged at intervals up and down in front of the steel strip outlet 3, and the annealed steel strip 10 is horizontally conveyed outward between the first pressing roller 9 and the second pressing roller 13.

[0018] A first support 7 extending obliquely downward and outward is arranged at the top of the sealing plate 2. A first lifting frame 8 corresponding to the first pressing roller 9 is arranged below the first support 7. In this embodiment, a first lifting driving device 6 extending obliquely downward and backward and connected to the first lifting frame 8 is vertically arranged on the first support. The first lifting driving device 6 uses a cylinder or a hydraulic cylinder to drive the lifting of the first lifting frame 8 and the first pressing roller 9.

[0019] The first unwinding rack 4 is arranged at the front end of the top of the annealing furnace housing 1. A first wool felt 11 is wound on the first unwinding rack 4. The front end of the first wool felt 11 extends downward, passes through the bottom of the first pressing roller 9 and then extends forward, and fits with the top surface of the steel strip 10 to seal and protect the steel strip outlet 3.

[0020] As Figure 1 shown, a second support 19 extending obliquely upward and outward is arranged at the bottom of the sealing plate 2. A second lifting frame 14 corresponding to the second pressing roller 13 is arranged above the second support 19. A second lifting driving device 15 extending obliquely upward and downward and connected to the second lifting frame 14 is vertically arranged on the second support. The second lifting driving device 15 uses a cylinder or a hydraulic cylinder to drive the lifting of the second pressing roller 13 and the second lifting frame 14.

[0021] The second unwinding rack 17 is arranged at the front end of the bottom of the annealing furnace housing 1. A second wool felt 12 is wound on the second unwinding rack 17. The front end of the second wool felt 12 extends upward, passes through the top of the second pressing roller 13 and then extends forward, and fits with the bottom surface of the steel strip 10 to seal and protect the steel strip outlet 3.

[0022] A first clamping plate 5 that extends obliquely upward to the rear side and cooperates with the sealing plate 2 to clamp the first wool felt 11 is arranged on the first lifting rack 8. A second clamping plate 16 that extends obliquely downward to the rear side and cooperates with the sealing plate 2 to clamp the second wool felt 12 is arranged on the second lifting rack 14. The first wool felt 11 and the second wool felt 12 are clamped and locked, preventing the first wool felt 11 and the second wool felt 12 from moving with the steel strip 10, with high stability and good heat preservation effect.

[0023] As Figure 2 shown, vertical surfaces 18 parallel to the sealing plate 2 are respectively arranged at the ends of the first clamping plate 5 and the second clamping plate 16. By making the vertical surfaces 18 fit with the vertical surfaces of the first wool felt 11 and the second wool felt 12, the clamping stability is high. After the first wool felt 11 and the second wool felt 12 are damaged, the first lifting rack 8 moves upward and the second lifting rack 14 moves downward. The first clamping plate 5 and the second clamping plate 16 no longer contact the first wool felt 11 and the second wool felt 12, and the first wool felt 11 and the second wool felt 12 are unlocked. Through the passive unwinding of the first unwinding rack 4 and the second unwinding rack 17, the first wool felt 11 and the second wool felt 12 can be updated as the steel strip 10 moves outward. Then the first lifting rack 8 moves downward to reset and the second lifting rack 14 moves upward to reset. The maintenance operation is simple, and only the damaged parts at the front ends of the first wool felt 11 and the second wool felt 12 need to be cut off or wound up.

[0024] The above content is only the preferred embodiment of the present invention. For those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation manner and application scope. The content of this specification should not be construed as a limitation to the present invention.

Claims

1. A furnace mouth sealing and adjusting device for an annealing furnace, which is used for annealing steel strips, and is characterized in that, Including: An annealing furnace shell, a sealing plate, a first unwinding rack, a second unwinding rack, a first pressing roller and a second pressing roller. The sealing plate is vertically arranged at the front furnace opening of the annealing furnace shell. A steel strip outlet is horizontally arranged in the sealing plate. The first pressing roller and the second pressing roller are arranged at intervals up and down in front of the steel strip outlet. A first support extending obliquely downward and outward is arranged at the top of the sealing plate. A first lifting frame corresponding to the first pressing roller is arranged below the first support. The first unwinding rack is arranged at the front end of the top of the annealing furnace shell. A first wool felt is wound on the first unwinding rack. The front end of the first wool felt extends downward, passes through the bottom of the first pressing roller and then extends forward. A second support extending obliquely upward and outward is arranged at the bottom of the sealing plate. A second lifting frame corresponding to the second pressing roller is arranged above the second support. The second unwinding rack is arranged at the front end of the bottom of the annealing furnace shell. A second wool felt is wound on the second unwinding rack. The front end of the second wool felt extends upward, passes through the top of the second pressing roller and then extends forward. A first clamping plate extending obliquely backward and upward and cooperating with the sealing plate to clamp the first wool felt is arranged on the first lifting frame. A second clamping plate extending obliquely backward and downward and cooperating with the sealing plate to clamp the second wool felt is arranged on the second lifting frame.

2. The furnace mouth sealing and adjusting device for an annealing furnace according to claim 1, characterized in that, A first lifting driving device extending obliquely downward and backward and connected to the first lifting frame is vertically arranged on the first support.

3. The furnace mouth sealing and adjusting device for an annealing furnace according to claim 2, wherein, The first lifting driving device adopts a cylinder or a hydraulic cylinder.

4. The furnace mouth sealing and adjusting device for an annealing furnace according to claim 1, characterized in that, A second lifting driving device extending obliquely upward and downward and connected to the second lifting frame is vertically arranged on the second support.

5. The furnace mouth sealing and adjusting device for an annealing furnace according to claim 4, characterized in that, The second lifting driving device adopts a cylinder or a hydraulic cylinder.

6. The furnace mouth sealing and adjusting device for an annealing furnace according to claim 1, characterized in that, Vertical surfaces parallel to the sealing plate are respectively arranged at the ends of the first clamping plate and the second clamping plate.

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