Reinforced buffer type furnace nose baffle valve device

Abstract

The invention provides a reinforced buffer type furnace nose baffle valve device, which belongs to the technical field of metallurgical engineering, and comprises a rectangular valve plate, one long edge of the valve plate is provided with a connecting shaft, and the back surface of the other long edge and the back surfaces of two wide edges of the valve plate are detachably provided with elastic buffer pieces and pressing plates in sequence from inside to outside; and the elastic buffer piece is made of a heat-resistant elastic material. The device has the beneficial effects that the function of isolating an annealing furnace from a furnace nose outlet area can be reliably realized during long-term stable operation, the adverse effects on the surface quality of strip steel and the galvanizing quality can be reduced, and the efficient and stable proceeding of a hot galvanizing process is guaranteed.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of metallurgical engineering, and particularly relates to a reinforced buffer type furnace nose baffle valve device. BACKGROUND

[0002] In the hot galvanizing process, the baffle valve in the middle section of the furnace nose plays a crucial role, and its main function is to isolate the annealing furnace from the outlet area of the furnace nose, ensuring the stable operation of the entire galvanizing process, which is of great significance to the improvement of product quality. However, there are many problems in the actual application of the device that need to be solved.

[0003] On the one hand, since the valve furnace nose baffle valve is in a special and high-temperature environment inside the furnace cavity for a long time and needs to be frequently operated, the valve plate of the furnace nose baffle valve is prone to deformation in the long-term operation. Moreover, once the valve plate of the furnace nose baffle valve is deformed, it will come into contact with the passing strip steel, thereby causing the strip steel to be scratched, which seriously affects the surface quality of the strip steel.

[0004] On the other hand, since the furnace nose baffle valve relies on the cylinder to provide power to realize opening and closing operation, the existing furnace nose baffle valve operates rapidly but lacks buffering function, which will generate a large impact force during opening and closing. This impact force not only causes the zinc ash in the furnace nose baffle valve and the internal cavity of the middle section of the furnace nose to fall off, but also causes the falling zinc ash to adhere to the surface of the strip steel, which easily causes the strip steel to be missed plated, greatly affecting the galvanizing quality of the product. SUMMARY

[0005] The technical problem solved by the present application is to provide a reinforced buffer type furnace nose baffle valve device, which can not only reliably realize the function of isolating the annealing furnace from the outlet area of the furnace nose in long-term stable operation, but also reduce the adverse effects on the surface quality of the strip steel and the galvanizing quality, ensuring the efficient and stable operation of the hot galvanizing process.

[0006] In order to solve the above technical problems, the technical solution provided by the present application is as follows: a reinforced buffer type furnace nose baffle valve device, which comprises a rectangular valve plate, one of the long edges of the valve plate is provided with a connecting shaft, the back surface of the other long edge and the back surfaces of the two wide edges of the valve plate are sequentially and detachably provided with an elastic buffer and a pressing plate from inside to outside, the elastic buffer is made of heat-resistant elastic material and can be fixed by the pressing plate. In this way, when the valve plate operates, the elastic buffer can effectively absorb the impact force generated by the operation by virtue of its good elasticity and buffering performance, thereby reducing the zinc ash falling caused by vibration, and maximizing the avoidance of the problem of zinc ash falling causing the strip steel to be missed plated, thereby significantly improving the integrity and quality stability of the strip steel galvanizing.

[0007] Further, the elastic buffer is a heat-resistant ceramic fiber rope, which is composed of ceramic fiber and organic or inorganic binder, has high temperature resistance and certain elasticity, and can realize sealing and buffering at high temperature, and is especially suitable for high-temperature environments such as furnace noses.

[0008] Further, the elastic buffer and the pressing plate are both concave in shape and fit the long side and the two wide sides of the valve plate.

[0009] Further, the surface of the valve plate is provided with a through hole three, the surface of the elastic buffer is provided with a through hole four, the surface of the pressing plate is provided with a through hole five, and the bolt two is threadedly connected with the nut two after sequentially penetrating the through hole three, the through hole four and the through hole five, so that the elastic buffer is detachably installed on the valve plate.

[0010] Further, the back surface of the valve plate is provided with at least two reinforcing vertical plates, and the structural stability of the valve plate is enhanced through the reinforcing vertical plates, thereby improving the deformation resistance.

[0011] Further, the back surface of the valve plate is uniformly provided with nine reinforcing vertical plates along the length direction.

[0012] Further, the valve plate is made of 0Cr25Ni20, so that the valve plate made of heat-resistant steel material with excellent oxidation resistance and high temperature strength can perform well under high temperature conditions, fundamentally solves the problem of scratches on the strip caused by long-time operation of the valve plate, effectively guarantees the surface quality of the strip during the running of the middle section of the furnace nose, and ensures the smooth progress of hot galvanizing production.

[0013] Further, one of the long sides of the valve plate is provided with a sleeve, and at least two through holes one are uniformly arranged on the side wall of the sleeve along the length direction; the connecting shaft is inserted into the sleeve, and at least two through holes two are uniformly arranged on the connecting shaft along the length direction, the connecting shaft is connected together through the bolt one penetrating the corresponding through holes one and two, and the through holes one can be directly designed as threaded holes, or the end of the bolt one is threadedly connected with the nut one after penetrating the through holes one.

[0014] From the above technical solutions, it can be seen that the present application has the following advantages: first, the present application aims at the problem of easy deformation of the valve plate, and improves the deformation resistance of the valve plate in high temperature environment and frequent operation conditions through structural reinforcement design, thereby avoiding scratches on the strip caused by contact between the deformed valve plate and the strip, and guaranteeing the surface quality of the strip; second, in order to solve the problem of lack of buffering of the baffle valve, the present application adds a buffering function to reduce the impact force when the baffle valve opens and closes, reduces the phenomenon of zinc ash falling caused by impact, thereby reducing the risk of zinc ash adhering to the surface of the strip, and improving the galvanizing quality of the strip. BRIEF DESCRIPTION OF DRAWINGS

[0015] To more clearly illustrate the technical solution of the present invention, the accompanying drawings used in the description will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a structural schematic diagram of a specific embodiment of the present invention.

[0017] In the diagram: 1. Valve plate; 2. Sleeve; 3. Connecting shaft; 4. Bolt 1; 5. Reinforcing plate; 6. Elastic buffer; 7. Pressure plate; 8. Bolt 2; 9. Through hole 4; 10. Nut 2. Detailed Implementation

[0018] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0019] like Figure 1 As shown, this invention provides a reinforced buffer-type furnace nose baffle valve device, which includes a rectangular valve plate 1 made of 0Cr25Ni20 material, which has excellent heat resistance and deformation resistance. A sleeve 2 is provided on one long side of the valve plate 1. At least two through holes 1 are evenly distributed along the length of the side wall of the sleeve 2. A connecting shaft 3 is inserted inside the sleeve 2. At least two through holes 2 are evenly distributed along the length of the connecting shaft 3, and the through holes 2 are arranged opposite to the through holes 1. The connecting shaft 3 is detachably connected to the corresponding through holes 1 and 2 by bolts 4 passing through them. Furthermore, the through holes 1 can be designed as threaded holes, or the end of the bolt 4 can be threaded through the through hole 1 and connected to a nut.

[0020] The back surface of the other long side and the back surface of the two wide sides of the valve plate 1 are detachably installed from inside to outside in sequence with the elastic buffer 6 and the pressing plate 7. Among them, the elastic buffer 6 is a strip-shaped structure made of heat-resistant elastic material, and preferably uses heat-resistant ceramic fiber rope, which is composed of ceramic fiber and organic or inorganic binder, has high temperature resistance and certain elasticity, can realize sealing, buffering and other functions at high temperature, and is especially suitable for high temperature environment such as furnace snout. Meanwhile, in the embodiment, the shape of the elastic buffer 6 and the shape of the pressing plate 7 are designed as concave shapes when the elastic buffer 6 is installed, and are simultaneously attached to the long side and the two wide sides of the valve plate 1; a plurality of through holes three are provided on the surface of the valve plate 1, a plurality of through holes four 9 are provided on the surface of the elastic buffer 6, a plurality of through holes five are provided on the surface of the pressing plate 7, and the bolt two 8 is sequentially threaded through the through hole three, the through hole four 9 and the through hole five, and then the nut two 10 is screwed, so as to realize the detachable installation of the elastic buffer 6 on the valve plate 1. In this way, when the valve plate 1 acts, the elastic buffer 6 can effectively absorb the impact force generated by the action due to its good elasticity and buffering performance, thereby reducing the zinc ash falling caused by vibration, maximizing the avoidance of the problem of strip steel plating leakage caused by zinc ash falling, and significantly improving the integrity and quality stability of strip steel galvanizing.

[0021] In addition, the nine reinforcing vertical plates 5 are uniformly installed on the back surface of the valve plate 1 along the length direction, and the structure stability of the valve plate 1 is enhanced through the reinforcing vertical plates 5, and the anti-deformation ability is improved, so as to ensure that the valve plate 1 can perform well under high temperature conditions, fundamentally solve the problem that the strip steel is scratched due to long-time operation of the valve plate 1, effectively guarantee the surface quality of the strip steel during the operation of the middle section of the furnace snout, and ensure the smooth progress of hot galvanizing production.

[0022] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A reinforced cushioned furnace nose damper valve device comprising a rectangular valve plate (1), one of the long sides of the valve plate (1) is provided with a connecting shaft (3), characterized in that, The back surface of the other long side and the back surface of the two wide sides of the valve plate (1) are detachably installed with elastic buffer (6) and pressing plate (7) from inside to outside in sequence, and the elastic buffer (6) is made of heat-resistant elastic material.

2. The reinforced cushioned furnace nozzle damper valve apparatus of claim 1, wherein, The elastic buffer (6) is a heat-resistant ceramic fiber rope.

3. The reinforced cushioned furnace nozzle damper valve apparatus of claim 1, wherein, The shape of the elastic buffer (6) and the shape of the pressing plate (7) are both concave.

4. The reinforced cushioned furnace nozzle damper valve apparatus of claim 1, wherein, The surface of the valve plate (1) is penetrated by through hole three, the surface of the elastic buffer (6) is penetrated by through hole four (9), the surface of the pressing plate (7) is penetrated by through hole five, and the bolt two (8) is threadedly connected with the nut two (10) after penetrating the through hole three, the through hole four (9) and the through hole five in sequence.

5. The reinforced cushioned furnace nozzle damper valve apparatus of any of claims 1-4, wherein, The back surface of the valve plate (1) is installed with at least two reinforcing vertical plates (5).

6. The reinforced cushioned furnace nozzle damper valve apparatus of claim 5, wherein, The back surface of the valve plate (1) is uniformly installed with nine reinforcing vertical plates (5) along the length direction.

7. The reinforced cushioned furnace nozzle damper valve apparatus of claim 5, wherein, The material of the valve plate (1) is 0Cr25Ni20.

8. The reinforced cushioned furnace nozzle damper valve apparatus of claim 5, wherein, One of the long sides of the valve plate (1) is provided with a sleeve (2), and at least two through holes one are uniformly arranged on the side wall of the sleeve (2) along the length direction; the connecting shaft (3) is inserted into the sleeve (2), and at least two through holes two are uniformly arranged on the connecting shaft (3) along the length direction, and the connecting shaft (3) is connected together through the bolt one (4) penetrating the corresponding through hole one and the through hole two.

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