CN216005910U

CN216005910U - Water cooling beam for blast furnace tuyere platform

Info

Publication number: CN216005910U
Application number: CN202122555047.2U
Authority: CN
Inventors: 屈俊杰; 肖卫锋; 贺鑫杰
Original assignee: CISDI Engineering Co Ltd
Current assignee: CISDI Engineering Co Ltd
Priority date: 2021-10-22
Filing date: 2021-10-22
Publication date: 2022-03-11
Anticipated expiration: 2031-10-22

Abstract

The utility model discloses a water-cooling roof beam for blast furnace tuyere platform, including the roof beam body, water pipe and fire-resistant filler, the roof beam body is hollow structure, the internal portion of roof beam is arranged in to the water pipe, fire-resistant filler is filled between water pipe and roof beam internal wall. In the utility model, cooling fluid is introduced into the water pipe, the gap between the water pipe and the inner wall of the beam body is filled with the fireproof filler, the heat received by the beam body is conducted to the water pipe through the fireproof filler, and then the heat is taken away by the cooling fluid flowing in the water pipe; the internal portion of roof beam of this structure does not require to have inclosed cavity, and because the setting of fire-resistant filler, even roof beam body deformation, the buffering based on fire-resistant filler also does benefit to the protection roof beam body and does not take place the rigidity with the water pipe and interferes, can protect the water pipe integrality, ensures that the internal portion of roof beam water can not leak, ensures to cool off the roof beam body under the safe condition, reduces roof beam body temperature, prolongs its life, reduces wind gap platform temperature, for production operation provides more convenience and safety.

Description

Water cooling beam for blast furnace tuyere platform

Technical Field

The utility model belongs to the technical field of metallurgical industry, a water-cooling roof beam for blast furnace tuyere platform is related to.

Background

In the metallurgical industry, an iron runner is arranged under a blast furnace tuyere platform of metallurgical equipment, 1500 ℃ liquid metal flows through the iron runner from a blast furnace taphole, the tuyere platform steel beam is roasted by heat brought by high-temperature liquid metal, even if the bottom of the tuyere platform steel beam is insulated by using a spray coating, a large amount of heat is still transferred to the steel beam and further transferred to the upper part of the tuyere platform, so that the tuyere platform is at high temperature, the steel beam can be quickly fatigued by the high temperature, the structure of the tuyere platform is damaged, and the high temperature of the tuyere platform is not beneficial to production operation on the tuyere platform and production safety.

Based on the defects, the heat dissipation structure at the position of the blast furnace tuyere platform and the steel beam is required to be improved, and the currently proposed means is to introduce water into the steel beam so as to directly cool the steel beam, take away the heat transferred to the steel beam, reduce the temperature of the steel beam and reduce the heat transferred to the upper part of the tuyere platform; however, the cooling mode has high requirement on the structural tightness of the steel beam, if the steel beam is deformed by heating to cause local damage, water leakage in the steel beam is easy to cause, when water leaks to molten iron in the iron runner, a large amount of steam generated after high-temperature gasification is easy to cause explosion, potential safety hazards exist, and therefore the practical use effect is poor.

Therefore, a water-cooling beam for a blast furnace tuyere platform is needed, which can forcibly cool a steel beam to reduce the temperature of the steel beam and ensure the safety of an internal cooling medium through the improvement of the water-cooling beam.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a water-cooling roof beam for blast furnace tuyere platform can carry out forced cooling to the girder steel and reduce its temperature, also guarantees inside coolant's safety simultaneously, has both prolonged the life of girder steel, also reduces tuyere platform temperature, provides more facilities and safety for production operation.

The utility model discloses a water-cooling roof beam for blast furnace tuyere platform, including the roof beam body, water pipe and fire-resistant filler, the roof beam body is hollow structure, the internal portion of roof beam is arranged in to the water pipe, fire-resistant filler is filled between water pipe and roof beam internal wall.

Furthermore, a plurality of water pipes are arranged in the beam body.

Further, the water pipes are arranged in a horizontal direction.

Further, the refractory filler is filled between the adjacent water pipes.

Further, the cross section of the beam body is of a rectangular structure.

Further, the bottom of the beam body is coated with a heat insulation coating.

The utility model has the advantages that:

in the utility model, cooling fluid is introduced into the water pipe, the gap between the water pipe and the inner wall of the beam body is filled with the fireproof filler, the heat received by the beam body is conducted to the water pipe through the fireproof filler, and then the heat is taken away by the cooling fluid flowing in the water pipe; the beam body of the structure is not required to be provided with a closed cavity; and owing to the setting of fire-resistant filler, even the roof beam body deformation, the buffering based on fire-resistant filler also does benefit to the protection roof beam body and does not take place the rigidity and interfere with the water pipe, can protect the water pipe integrality, ensures that the water of roof beam internal portion can not leak, ensures cooling down the roof beam body under the safe condition, reduces roof beam body temperature, prolongs its life, reduces wind gap platform temperature, provides more convenience and safety for production operation.

Drawings

The invention is further described with reference to the following figures and examples.

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

FIG. 2 is a schematic cross-sectional view;

Detailed Description

As shown in the figure: the embodiment provides a water-cooling roof beam for blast furnace tuyere platform, including the roof beam body 1, water pipe 2 and fire-resistant filler 3, the roof beam body is hollow structure, the internal portion of roof beam is arranged in to the water pipe, fire-resistant filler is filled between water pipe and roof beam internal wall. Referring to fig. 1, the beam body may be of a conventional steel beam structure, the refractory filler may be obtained from existing refractory filler bricks or other commercially available materials, and the refractory material may be silicon refractory, aluminosilicate refractory, or other known materials; the water pipe is forced to be introduced with cooling fluid through the water pump, a gap between the water pipe and the inner wall of the beam body is filled with the refractory filler, heat received by the beam body is conducted to the water pipe through the refractory filler, and then the heat is taken away by the cooling fluid flowing in the water pipe; the internal portion of roof beam of this structure does not require to have inclosed cavity, and because the setting of fire-resistant filler, even roof beam body deformation, the buffering based on fire-resistant filler also does benefit to the protection roof beam body and does not take place the rigidity with the water pipe and interferes, can protect the water pipe integrality, ensures that the internal portion of roof beam water can not leak, ensures to cool off the roof beam body under the safe condition, reduces roof beam body temperature, prolongs its life, reduces wind gap platform temperature, for production operation provides more convenience and safety.

In this embodiment, the internal water pipe that is provided with more of roof beam. Referring to fig. 1, three water pipes are provided to improve a cooling effect by a plurality of water pipes, and the number of the water pipes may be determined according to the size of the water pipes and the size of the inside of the beam body.

In this embodiment, the water pipes are arranged in a horizontal direction. As shown in the combined figure 1, the water pipes are round pipes through the water pipes which are horizontally arranged, a heat insulation barrier is formed in the horizontal direction inside the beam body, the upward conduction of heat can be effectively limited, the good cooling effect of the beam body is guaranteed, meanwhile, the upward transmission of heat can be reduced, the temperature of the air port platform is further reduced, and the safe production operation on the air port platform is facilitated.

In this embodiment, the refractory filler is further filled between the adjacent water tubes. As shown in the combined figure 1, the gaps between the horizontally adjacent water pipes are filled with the refractory filler, so that heat is isolated, the heat is limited to be directly upwards transferred, and the cooling effect of the water pipes is improved.

In this embodiment, the cross section of the beam body is a rectangular structure. As shown in fig. 1, the beam body is a hollow rectangular beam, and the beam body can be a pre-supported integrated member or can be formed by welding four plates on site, and horizontal arrangement of internal water pipes is facilitated through the rectangular beam body.

In this embodiment, the bottom of the beam is coated with a thermal barrier coating 4. The fireproof coating for the thick steel structure is preferably adopted, and the fireproof coating delays the temperature rise of steel and protects the steel by utilizing the granular surface, smaller density, low heat conductivity and heat absorptivity of materials in the coating in fire. The fireproof coating is prepared by mixing proper inorganic cementing materials, such as water glass, silica sol, aluminum phosphate, refractory cement and the like, and then adding inorganic light heat-insulating aggregate materials, fireproof additives, chemical agents, reinforcing materials, fillers and the like, and the heat-insulating coating can also be formed by directly purchasing the existing coating through spraying, and is not described in detail.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. The utility model provides a water-cooling roof beam for blast furnace tuyere platform which characterized in that: the beam is of a hollow structure, the water pipe is arranged inside the beam, and the fireproof filler is filled between the water pipe and the inner wall of the beam.

2. The water-cooled beam for the tuyere platform of the blast furnace as set forth in claim 1, wherein: the beam body is internally provided with a plurality of water tubes.

3. The water-cooled beam for the tuyere platform of the blast furnace as set forth in claim 2, wherein: the water pipes are arranged in a horizontal direction.

4. The water-cooled beam for the tuyere platform of the blast furnace according to claim 2 or 3, wherein: the refractory filler is also filled between adjacent water tubes.

5. The water-cooled beam for the tuyere platform of the blast furnace as set forth in claim 3, wherein: the cross section of the beam body is of a rectangular structure.

6. The water-cooled beam for the tuyere platform of the blast furnace as set forth in claim 2, wherein: the bottom of the beam body is coated with a heat insulation coating.