CN216129627U

CN216129627U - Water-cooling fire door behind converter stove

Info

Publication number: CN216129627U
Application number: CN202121676639.3U
Authority: CN
Inventors: 王松伟; 张保立
Original assignee: Hebei Xinda Iron and Steel Group Co Ltd
Current assignee: Hebei Xinda Iron and Steel Group Co Ltd
Priority date: 2021-07-22
Filing date: 2021-07-22
Publication date: 2022-03-25
Anticipated expiration: 2031-07-22

Abstract

The utility model discloses a converter rear water-cooling fire-blocking door, which comprises a door main body; an inner cavity is arranged in the door main body; the upper part or the middle upper part of the inner cavity is provided with a horizontal diversion reinforcing plate, the front end and two sides of the horizontal diversion reinforcing plate are connected with the inner wall of the inner cavity, and the rear end of the horizontal diversion reinforcing plate is spaced from the inner wall of the inner cavity; a vertical flow guide reinforcing plate is arranged between the horizontal flow guide reinforcing plate and the bottom of the inner cavity and comprises an upper vertical flow guide reinforcing plate and a lower vertical flow guide reinforcing plate; the upper end of the upper vertical flow guide reinforcing plate is connected with the horizontal flow guide reinforcing plate, two sides of the upper vertical flow guide reinforcing plate are connected with the inner wall of the inner cavity, and a space is reserved between the lower end of the upper vertical flow guide reinforcing plate and the bottom of the inner cavity; the lower end of the lower vertical flow guide reinforcing plate is connected with the bottom of the inner cavity, two sides of the lower vertical flow guide reinforcing plate are connected with the inner wall of the inner cavity, and the upper end of the lower vertical flow guide reinforcing plate is spaced from the horizontal flow guide reinforcing plate; the upper vertical diversion reinforcing plate and the lower vertical diversion reinforcing plate are arranged at intervals. The fire door has the characteristics of simple structure, good cooling effect, good cooling uniformity and the like.

Description

Water-cooling fire door behind converter stove

Technical Field

The utility model relates to a converter fire damper, in particular to a converter rear water-cooling fire damper.

Background

Each converter comprises a front fire damper and a rear fire damper; the converter rear fire door is arranged behind the converter, and plays a role in protecting operators and a slag stopping feeding device during production so as to prevent molten steel from splashing and heat radiation from damaging the operators and equipment; and when slag is collected behind the furnace, the fire door can be smoothly moved away, and then the steel slag is manually cleaned.

Because the working environment of the rear fire-proof door of the converter is extremely severe and is damaged by high-temperature radiation and molten steel splashing from the beginning of installation and use, the fire-proof door must have high temperature resistance and certain impact resistance. The existing furnace rear fire door is generally made of a common steel plate, the steel plate is very easy to deform and damage after meeting high temperature, and the steel plate can not effectively shield the high temperature due to the fast conduction of the steel plate to the temperature, so that the conditions of smoke dust, high temperature overflow and the like can be caused due to the fact that the shielding is not tight, and potential safety hazards exist to operating personnel and equipment.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of providing a converter rear water-cooling fire door with a good protection effect.

In order to solve the technical problems, the technical scheme adopted by the utility model is as follows: it includes a door main body; an inner cavity is arranged in the door main body; the upper part or the middle upper part of the inner cavity is provided with a horizontal diversion reinforcing plate, the front end and two sides of the horizontal diversion reinforcing plate are connected with the inner wall of the inner cavity, and the rear end of the horizontal diversion reinforcing plate is spaced from the inner wall of the inner cavity; a vertical flow guide reinforcing plate is arranged between the horizontal flow guide reinforcing plate and the bottom of the inner cavity and comprises an upper vertical flow guide reinforcing plate and a lower vertical flow guide reinforcing plate; the upper end of the upper vertical flow guide reinforcing plate is connected with the horizontal flow guide reinforcing plate, two sides of the upper vertical flow guide reinforcing plate are connected with the inner wall of the inner cavity, and a space is reserved between the lower end of the upper vertical flow guide reinforcing plate and the bottom of the inner cavity; the lower end of the lower vertical flow guide reinforcing plate is connected with the bottom of the inner cavity, two sides of the lower vertical flow guide reinforcing plate are connected with the inner wall of the inner cavity, and the upper end of the lower vertical flow guide reinforcing plate is spaced from the horizontal flow guide reinforcing plate; the upper vertical diversion reinforcing plate and the lower vertical diversion reinforcing plate are arranged at intervals; the inner cavity at the upper part of the horizontal diversion reinforcing plate is communicated with a metal hose outwards; the metal hose is communicated with the water pool and the water pump in sequence and then communicated with the inner cavity at the lower part of the horizontal diversion reinforcing plate.

The vertical diversion reinforcing plate at the rearmost end is an upper vertical diversion reinforcing plate. The last vertical water conservancy diversion reinforcing plate of rearmost end is connected at the rearmost end of horizontal water conservancy diversion reinforcing plate.

A control valve is arranged on a metal hose between a water pool and a door main body; and a cut-off valve is arranged on the metal hose between the water pump and the door main body.

The door main body is connected with a rear fire hole of the converter in a front-back sliding manner.

Adopt the produced beneficial effect of above-mentioned technical scheme to lie in: according to the utility model, the water in the water tank is conveyed into the inner cavity of the door main body through the metal hose and the water pump to cool the door main body, so that the door main body is prevented from deforming; through the last vertical water conservancy diversion reinforcing plate and the vertical water conservancy diversion reinforcing plate down that the interval set up, make the water of input door main part inner chamber be the interior lower part of wave flow through door main part, flow out behind horizontal water conservancy diversion reinforcing plate upper portion again to make water more even that flows in the inner chamber, thereby more even for door main part heat dissipation, avoid the difference in temperature between the different positions of door main part too big, thereby prevent door main part production deformation more effectively. The door body has the characteristics of simple structure, good cooling effect, good cooling uniformity and the like, can effectively avoid the deformation and damage of the door body due to temperature, effectively improves the protection effect and prolongs the service life.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the front end surface of the door main body according to the present invention.

In the figure: a water pool 1; a metal hose 2; a control valve 3; a driving wheel 4; a door main body 5; a horizontal flow guide reinforcing plate 6; a driven wheel 7; an inner cavity 8; an upper vertical diversion reinforcing plate 9; a lower vertical flow guide reinforcing plate 10; a shut-off valve 11; a water pump 12; an upper strip steel plate 13; side steel plates 14; a water inlet 15; a lower strip-shaped steel plate 16; a front strip steel plate 17; a water outlet 18.

Detailed Description

As shown in fig. 1 and 2, the converter furnace rear water-cooling fire damper comprises a door main body 5; the door main body 5 is composed of two side steel plates 14, an upper strip steel plate 13, a rear strip steel plate, a lower strip steel plate 16 and a front strip steel plate 17 which are welded around the side steel plates 14; a space is arranged between the two side steel plates 14, so that an inner cavity 8 is formed in the door main body 5; the two sides of the inner cavity 8 are provided with side steel plates 14, the front end is provided with a front strip steel plate 17, the rear end is provided with a rear strip steel plate, the upper end is provided with an upper strip steel plate 13, and the lower end is provided with a lower strip steel plate 16.

As shown in fig. 1, a horizontal diversion reinforcing plate 6 is arranged in an inner cavity 8 of a door main body 5 of the converter rear water-cooling fire damper; the horizontal flow guide reinforcing plate 6 is a horizontally arranged strip-shaped steel plate, the front end of the horizontal flow guide reinforcing plate is welded with the front strip-shaped steel plate 17 at the upper part or the middle upper part of the inner cavity 8, two sides of the horizontal flow guide reinforcing plate are welded with the side steel plates 14, and a certain distance is reserved between the rear end and the rear strip-shaped steel plate; thus, the horizontal diversion reinforcing plate 6 divides the inner cavity 8 into an upper cavity and a lower cavity. A vertical flow guide reinforcing plate is arranged between the horizontal flow guide reinforcing plate 6 and the bottom of the inner cavity 8; the vertical diversion reinforcing plates comprise an upper vertical diversion reinforcing plate 9 and a lower vertical diversion reinforcing plate 10; the upper vertical flow guide reinforcing plate 9 is a vertically arranged strip-shaped steel plate, the upper end of the upper vertical flow guide reinforcing plate is welded with the bottom of the horizontal flow guide reinforcing plate 6, two sides of the upper vertical flow guide reinforcing plate are welded with the side steel plate 14, and a certain distance is reserved between the lower end of the upper vertical flow guide reinforcing plate and the lower strip-shaped steel plate 16; the lower vertical flow guide reinforcing plate 10 is a vertically arranged strip-shaped steel plate, the lower end of the lower vertical flow guide reinforcing plate is welded with the lower strip-shaped steel plate 16, the two sides of the lower vertical flow guide reinforcing plate are welded with the side steel plates 14, and a certain distance exists between the upper end of the lower vertical flow guide reinforcing plate and the horizontal flow guide reinforcing plate 6; thus, the upper vertical diversion reinforcing plate 9 and the lower vertical diversion reinforcing plate 10 respectively divide the inner cavities at the lower parts of the horizontal diversion reinforcing plates 6 into half parts. The upper vertical diversion reinforcing plate 9 and the lower vertical diversion reinforcing plate 10 are arranged at intervals, the foremost vertical diversion reinforcing plate is the lower vertical diversion reinforcing plate 10, the rearmost vertical diversion reinforcing plate is the upper vertical diversion reinforcing plate 9, and the rearmost upper vertical diversion reinforcing plate 9 is welded at the rearmost end of the horizontal diversion reinforcing plate 6; thus, a water path which is bent up and down is formed in the inner cavity at the lower part of the horizontal diversion reinforced plate 6, and the water path flows upwards from the rearmost end of the inner cavity 8 into the inner cavity at the upper part of the horizontal diversion reinforced plate 6.

As shown in fig. 1 and 2, the rear water-cooling fire damper of the converter is provided with a water outlet 18 at the upper part of a front strip-shaped steel plate 17, and the water outlet 18 penetrates through the front strip-shaped steel plate 17 and is communicated with an inner cavity 8 at the upper part of a horizontal diversion reinforcing plate; the lower part of the front strip-shaped steel plate 17 is provided with a water inlet 15, and the water inlet 15 penetrates through the front strip-shaped steel plate 17 and is communicated with the inner cavity 8 at the lower part of the horizontal flow guide reinforcing plate. A metal hose 2 is communicated between the water inlet 15 and the water outlet 18; the metal hose 2 is sequentially communicated with a control valve 3, a water tank 1, a water pump 12 and a cut-off valve 11 from a water outlet 18 to a water inlet 15. Therefore, the water pump 12 can convey the water in the water pool 1 into the inner cavity of the door main body from the water inlet 15 through the metal hose 3 and then flow out of the metal hose 3 from the water outlet 18, so that the circulation of cooling water is realized; the control valve 3 is used for controlling the flow of water, and the stop valve 11 is used for cutting off the circulation of water when the temperature is not required to be reduced.

As shown in fig. 1, the door main body 5 of the converter rear water-cooling fire-blocking door is connected to a converter rear fire hole in a front-back sliding manner, the upper part of the door main body 5 is connected with a driving wheel 4 and a driven wheel 7 in a rolling manner, the driving wheel 4 is driven to rotate by a power device, the rotating driving wheel 4 drives the door main body 5 to slide in the front-back sliding manner, and the driven wheel 7 rotates passively, so that the fire-blocking door is opened and closed; and because the metal hose 2 is adopted as a pipeline of cooling water, the opening and closing of the fire door cannot be influenced.

As shown in figure 1, the application process of the converter rear water-cooling fire damper is as follows: the power device drives the driving wheel 4 to rotate, and the door main body 5 slides to the rear fire hole of the converter; opening a stop valve 11, starting a water pump 12, controlling the flow of water through a control valve 3, and conveying the water in the water tank 1 into the inner cavity of the door main body 5 from a water inlet 15 through a metal hose 3; the water flow firstly forms a waterway which is bent up and down in the inner cavity 8 at the lower part of the horizontal diversion reinforcing plate 6, and the waterway upwards flows into the inner cavity 8 at the upper part of the horizontal diversion reinforcing plate 6 from the rearmost end of the inner cavity 8; and finally, the cooling water flows out of the water outlet 18 into the metal hose 3 to realize the circulating cooling of the cooling water. When cooling is not needed, the water pump 12 is closed, and the shut-off valve 11 and the control valve 3 are closed.

Claims

1. The utility model provides a converter stove back water-cooling fire door which characterized in that: it comprises a door body (5); an inner cavity (8) is arranged in the door main body (5); the upper part or the middle upper part of the inner cavity (8) is provided with a horizontal diversion reinforcing plate (6), the front end and two sides of the horizontal diversion reinforcing plate (6) are connected with the inner wall of the inner cavity, and the rear end is spaced from the inner wall of the inner cavity; a vertical flow guide reinforcing plate is arranged between the horizontal flow guide reinforcing plate (6) and the bottom of the inner cavity (8), and comprises an upper vertical flow guide reinforcing plate (9) and a lower vertical flow guide reinforcing plate (10); the upper end of the upper vertical diversion reinforcing plate (9) is connected with the horizontal diversion reinforcing plate (6), the two sides of the upper vertical diversion reinforcing plate are connected with the inner wall of the inner cavity, and the lower end of the upper vertical diversion reinforcing plate is spaced from the bottom of the inner cavity (8); the lower end of the lower vertical diversion reinforcing plate (10) is connected with the bottom of the inner cavity (8), the two sides of the lower vertical diversion reinforcing plate are connected with the inner wall of the inner cavity, and the upper end of the lower vertical diversion reinforcing plate is spaced from the horizontal diversion reinforcing plate (6); the upper vertical diversion reinforcing plate (9) and the lower vertical diversion reinforcing plate (10) are arranged at intervals; an inner cavity (8) at the upper part of the horizontal diversion reinforcing plate is outwards communicated with a metal hose (2); the metal hose (2) is communicated with the water pool (1) and the water pump (12) in sequence and then is communicated with the inner cavity (8) at the lower part of the horizontal diversion reinforcing plate.

2. The converter furnace rear water-cooling fire door according to claim 1, characterized in that: the vertical diversion reinforcing plate at the rearmost end is an upper vertical diversion reinforcing plate (9).

3. The converter furnace rear water-cooling fire door according to claim 2, characterized in that: the rearmost upper vertical diversion reinforcing plate (9) is connected to the rearmost end of the horizontal diversion reinforcing plate (6).

4. The converter furnace rear water-cooling fire door according to claim 1, characterized in that: a control valve (3) is arranged on the metal hose (2) between the water tank (1) and the door main body (5); and a cut-off valve (11) is arranged on the metal hose (2) between the water pump (12) and the door main body (5).

5. The converter furnace rear water-cooling fire door according to any one of claims 1 to 4, characterized in that: the door main body (5) is connected with a rear fire hole of the converter in a sliding manner.