Fire spurting prevention device for heating mantle
By using a combined sealing structure of sealing members and refractory cloth in the heating cover, the problem of lax sealing between the sealing ring and the sink is solved, and the effect of effectively preventing fire and improving heating performance is achieved.
Patent Information
- Application Number
- CN202420167070.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-22
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-01-22
AI Technical Summary
After long-term use, the sealing ring of the heating cover is not tightly sealed, causing fire to rise, affecting production safety and heating performance.
A combined sealing structure consisting of a sealing member and a refractory cloth is adopted. The sealing member is welded and fixed to the sealing ring body, and the refractory cloth is covered on the inclined surface and the outer wall surface, and is fixed by an anchor to form a sealing effect that combines hardness and flexibility.
Effectively prevent fire from rushing, improve the heating performance of the heating cover and the sealing effect during the production process, and ensure the connection strength and stability of the equipment.
Smart Images
Figure CN222143727U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of heating furnace equipment, and in particular relates to a heating cover anti-fire device. Background Art
[0002] The heating hood is an important equipment for the bell-type furnace production line. Its function is to heat the inner hood to ensure the full reaction between the steel coil and H2 in the furnace. It is the heat source of the steel coil. The ignition and heating of the heating hood directly affect the smooth progress of production and the yield rate of the product. The heating hood equipment is composed of a gas system, a combustion air system, a combustion device, an exhaust gas emission system, an automatic control system, etc. During the production process of the furnace, the strip steel is heated and annealed by controlling the combustion of the gas burner.
[0003] Since the bell-type furnace was put into operation, the heating bell has been working at full capacity. After long-term use, many problems have been exposed, such as the sealing ring is not tight, resulting in fire, which seriously affects production safety, accelerates the deterioration of many equipment functions of the heating bell, and greatly reduces the heating performance, which directly affects the annealing cycle and the output of the unit. Utility Model Content
[0004] The utility model aims to provide a heating cover anti-fire jump device to solve the fire jump problem caused by the sealing structure proposed in the above background technology during use.
[0005] To achieve the above object, the utility model provides the following technical solution: a heating cover anti-fire device, the anti-fire device is constituted as a sealing structure at the connection position of the sealing ring body and the water tank in the heating cover, and the anti-fire device includes:
[0006] A sealing member is welded and fixed on the sealing ring body, wherein the sealing member is configured as an annular member, and an end surface of one axial end of the sealing member is configured as an inclined surface that is inclined;
[0007] The fire-resistant cloth at least covers the inclined surface.
[0008] Preferably, the inclined surface and the water tank surface are arranged parallel to each other.
[0009] Preferably, the height of the weld foot at the connection position between the sealing component and the sealing ring body is 4 mm.
[0010] Preferably, the sealing component has an outer diameter of 2200 mm, a height of 50 mm and a thickness of 5 mm.
[0011] Preferably, the fire-resistant cloth also covers the outer wall surface of the sealing component in the circumferential direction.
[0012] Preferably, the fire-resistant cloth is fixed to the outer surface of the sealing member by an anchor.
[0013] Preferably, the anchor is made of metal or ceramic material.
[0014] Preferably, the sealing member is made of steel.
[0015] Preferably, the heating cover has a shell component, and the sealing ring body is welded and fixed to the bottom end of the shell component.
[0016] Preferably, the height of the weld foot at the connection position between the shell component and the sealing ring body is 4 mm.
[0017] Compared with the prior art, the beneficial effects of the utility model are:
[0018] The present application sets up a combined sealing structure consisting of a sealing component and a fire-resistant cloth, that is, adopts a combined sealing structure of rigidity and flexibility, and uses the rigid sealing component as an assembly (welding) carrier to ensure the connection strength and use strength of the anti-fire jump device. At the same time, the flexible sealing structure can further improve the sealing effect of the contact surface, effectively prevent the occurrence of fire jump, and ensure the heating performance of the heating hood during the production process. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is the front view of the heating hood;
[0020] Figure 2 This is a schematic diagram of the structure of the fire prevention device.
[0021] In the figure:
[0022] 100, housing member, 101, sealing ring body;
[0023] 200. Anti-fire device; 201. Sealing member; 201a. Inclined surface; 202. Fire-resistant cloth. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0025] The heating hood is an important equipment dedicated to the hood-type furnace production line. Its function is to heat the inner hood to ensure the full reaction of the steel coils in the furnace with H2. It is the heat source of the steel coils. Specifically, the heating hood has a shell component 100, which defines a reaction zone inside. At the same time, the heating hood is also provided with a water tank. In order to prevent water accumulation inside the water tank, the water tank adopts an inclined design and is overall high inside and low outside. At the same time, a sealing ring body 101 is provided on the shell component 100 of the heating hood to prevent the problem of fire in the production process. The existing sealing ring body 101 is fixed to the bottom end of the shell component 100 by welding. The preferred weld foot height is 4 mm. However, due to the inclined design of the heating hood water tank, there is often a gap between the contact surface of the sealing ring body 101 and the water tank in the heating hood, resulting in a poor seal between the two and causing fire. In order to solve the sealing problem between the sealing ring and the water tank, the following heating hood anti-fire device 200 is designed.
[0026] A heating cover anti-sparking device 200 (hereinafter referred to as the anti-sparking device 200), the anti-sparking device 200 is fixed to the sealing ring body 101 at the bottom of the shell member 100, and is constituted as a sealing structure between the sealing ring body 101 and the water tank inside the heating cover shell. In some embodiments, the anti-sparking device 200 is composed of a sealing member 201 and a fire-resistant cloth 202 coated on at least part of the outer surface of the sealing member 201. In some embodiments, the anti-sparking device 200 is fixed to the sealing ring body 101 by welding, preferably Specifically, the sealing member 201 is constituted as an annular member. For example, the sealing member 201 is constituted as an annular body with a diameter of 2200 mm, a height of 50 mm, and a thickness of 5 mm. Further, the end face of the sealing member 201 at one axial end is constituted as an inclined surface 201a, and its inclination angle is the same as the inclination angle of the water tank, that is, the inclined surface 201a of the sealing member 201 is arranged parallel to the surface of the water tank, so that the contact surface of the sealing member 201 and the water tank can be completely fitted to ensure the sealing effect. Figure 1 and 2 , continuing to explain the anti-fire jump device 200, the above-mentioned refractory cloth 202 at least covers the inclined surface 201a of the sealing component 201, so as to change the original hard contact between the two metal surfaces into a soft contact between the refractory cloth 202 and the water tank surface, thereby further improving the sealing effect. In some embodiments, the circumferential outer wall surface of the above-mentioned sealing component 201 is also provided with a refractory cloth 202. Through the combined sealing structure of the sealing component 201 and the refractory cloth 202, that is, a combined sealing structure of hardness and flexibility is adopted, and the hard sealing component 201 is used as an assembly (welding) carrier, the connection strength and use strength of the anti-fire jump device 200 can be guaranteed. At the same time, the flexible sealing structure can further improve the sealing effect of the contact surface, thereby effectively preventing the occurrence of fire jump phenomenon.
[0027] In some embodiments, the fire-resistant cloth 202 is fixed to the outer surface of the sealing member 201 by an anchor, which is made of metal or ceramic material and is configured to maintain the connection between the fire-resistant cloth 202 and the sealing member 201 in a high temperature environment to ensure the stability of the anti-fire device 200 during use.
[0028] In some embodiments, the refractory cloth 202 is constructed as a high-temperature resistant fireproof cloth, that is, a high-temperature resistant inorganic fiber. The silicon dioxide (SiO2) content in the refractory cloth 202 is higher than 96%, and the softening point is close to 1700°C. It can be used for a long time at 900°C, can work at 1450°C for 10 minutes, and can work at 1600°C for 15 seconds and still remain in good condition. It has the characteristics of stable chemical properties, high temperature resistance, and ablation resistance, so as to ensure that the above-mentioned anti-fire device 200 can maintain the sealing effect between the water tank and the sealing ring in the high temperature environment inside the heating hood.
[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A heating cover fire prevention device, Features: The anti-flame-out device is constituted as a sealing structure at the connection position between the sealing ring body and the water tank in the heating cover, and the anti-flame-out device comprises: A sealing member is welded and fixed on the sealing ring body, wherein the sealing member is configured as an annular member, and an end surface of one axial end of the sealing member is configured as an inclined surface that is inclined; The fire-resistant cloth at least covers the inclined surface.
2. A heating cover fire prevention device according to claim 1, Features: The inclined surface is arranged parallel to the water tank surface.
3. A heating cover fire prevention device according to claim 1, Features: The height of the weld foot at the connection position between the sealing component and the sealing ring body is 4 mm.
4. A heating cover fire prevention device according to claim 1, Features: The outer diameter of the sealing component is 2200 mm, the height is 50 mm, and the thickness is 5 mm.
5. A heating cover fire prevention device according to claim 1, Features: The fire-resistant cloth also covers the outer wall surface of the sealing member in the circumferential direction.
6. A heating cover fire prevention device according to claim 1, Features: The fire-resistant cloth is fixed to the outer surface of the sealing member by an anchor.
7. A heating cover fire prevention device according to claim 6, Features: The anchor is made of metal or ceramic material.
8. A heating cover fire prevention device according to claim 1, Features: The sealing member is made of steel material.
9. A heating cover fire prevention device according to claim 1, Features: The heating cover has a shell component, and the sealing ring body is welded and fixed to the bottom end of the shell component.
10. A heating cover fire prevention device according to claim 9, Features: The height of the weld foot at the connection position between the shell component and the sealing ring body is 4 mm.