CN211255976U - Heating equipment device for heat treatment of furnace shell of blast furnace hot blast stove - Google Patents

Abstract

The utility model discloses a blast furnace hot blast stove outer covering thermal treatment firing equipment device, including steel urceolus, heat-resisting brick, fuel pipe and hot air discharge pipe, the inside at the steel urceolus is installed to heat-resisting brick, the one end of fuel pipe is passed the steel urceolus and is installed in the inside of heat-resisting brick, the upper end of hot air discharge pipe installation steel urceolus, the inside of steel urceolus is provided with the steel inner tube, the lower extreme welding of steel urceolus and steel inner tube has the supporting steel board, it has thermal-insulated foaming board to fill between steel urceolus and the steel inner tube, the middle part of heat-resisting brick. The utility model has the advantages that: the area of the support steel pipe contacting with the heat-resisting bricks through the heating pieces and the heat releasing pieces is increased, the heating efficiency of the support steel pipe is improved through the heating pieces, the heat releasing efficiency of the heating pieces is improved through the heat releasing pieces, the heat conversion rate is improved, the strength of the hot blast stove structure is improved, and the heat loss is reduced.

Description

Heating equipment device for heat treatment of furnace shell of blast furnace hot blast stove

Technical Field

The utility model relates to a hot blast furnace device, in particular to a heating device for heat treatment of a furnace shell of a blast furnace hot blast furnace, which belongs to the technical field of blast furnace smelting equipment.

Background

The hot blast stove is used for heating blast air to required temperature when the iron-making blast furnace works so as to improve the benefit and efficiency of the blast furnace; the hot blast stove works according to the principle of 'heat storage', coal gas is combusted in a combustion chamber, high-temperature waste gas passes through checker bricks to store heat, after the checker bricks are fully heated, the hot blast stove can be changed into air supply, at the moment, all combustion related valves are closed, all air supply valves are opened, and cold air is heated and sent out through the checker bricks. When the traditional hot blast stove is used, the steel cylinder has poor heat insulation effect, certain heat loss exists, meanwhile, the heat-resistant brick has insufficient structural stability, and the problem that the mixture of the externally introduced air and the combusted gas is not complete during direct heating is solved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a blast furnace hot blast stove outer covering thermal treatment firing equipment device just in order to solve above-mentioned problem, it is obvious to possess thermal-insulated effect, and heat-resisting brick stable in structure simultaneously, the air that lets in and the gas misce bene's after the burning advantage.

The utility model achieves the above purpose through the following technical proposal, a furnace shell heat treatment heating device of a blast furnace hot blast stove comprises a steel outer cylinder, heat-resistant bricks, a fuel pipe and a hot blast discharge pipe, the heat-resisting brick is arranged in the steel outer cylinder, one end of the fuel pipe penetrates through the steel outer cylinder and is arranged in the heat-resisting brick, the hot air discharge pipe is arranged at the upper end of the steel outer cylinder, the steel inner cylinder is arranged in the steel outer cylinder, the lower ends of the steel outer cylinder and the steel inner cylinder are welded with supporting steel plates, a heat insulation foaming plate is filled between the steel outer cylinder and the steel inner cylinder, the middle part of the heat-resistant brick is provided with a combustion chamber, the end part of the fuel pipe is positioned at the upper end of the combustion chamber, the supporting steel pipe is embedded in the heat-resisting brick, the inner surface welding of supporting the steel pipe has the piece that receives heat, the outer surface welding of supporting the steel pipe has the piece that gives off heat, the surface that heat-resisting brick is located the supporting steel pipe outside has seted up the bleeder vent.

Preferably, the lower extreme of steel urceolus is provided with the intake pipe, be provided with the air guide plate in the supporting steel board of steel urceolus and steel inner tube lower extreme welded, the upper surface welding of air guide plate has the outlet duct, just intake pipe, air guide plate and outlet duct are linked together.

Preferably, twenty air outlet pipes welded to the upper surface of the air guide plate are arranged, twenty air outlet pipes are arranged at equal intervals in an annular mode, and the inclination angle between each air outlet pipe and the horizontal plane is 30 degrees.

Preferably, the heated sheets and the heat-releasing sheets are both of a plate-shaped structure, twenty heat-releasing sheets welded on the outer surface of the support steel pipe are provided, and forty heat-receiving sheets welded on the inner surface of the support steel pipe are provided.

Preferably, twenty heat radiating sheets are distributed around the heating plate at equal intervals, and forty heat receiving sheets are distributed around the heating plate at equal intervals.

Preferably, the air holes are of arc-shaped strip structures.

The utility model has the advantages that: the heat-resistant bricks are supported through the supporting steel pipes embedded in the heat-resistant bricks, the strength of the structure of the heat-resistant bricks is increased, the heating sheets welded on the inner surfaces of the steel pipes and the heat-releasing sheets welded on the outer surfaces of the steel pipes are supported at the same time, the contact area of the supporting steel pipes and the heat-resistant bricks through the heating sheets and the heat-releasing sheets is increased, the heating efficiency of the supporting steel pipes is improved through the heating sheets, the heat-releasing efficiency of the heating sheets is improved through the heat-releasing sheets, meanwhile, air holes formed in the surfaces of the heat-resistant bricks increase the contact area of air and the heat-resistant bricks, the heat conversion is improved, meanwhile, a steel inner cylinder arranged in the steel outer cylinder and a heat-insulating foaming plate filled between the steel outer cylinder and the steel inner cylinder are arranged, a double-layer steel cylinder formed by the steel outer cylinder and the steel inner cylinder is enabled to improve the, through the air guide plate that sets up in steel urceolus and the welded supporting steel plate of steel inner tube lower extreme, air guide plate communicates with outlet duct and intake pipe respectively simultaneously, and the outlet duct is 30 degrees with the contained angle of horizontal plane simultaneously, and the exhaust wind of the outlet duct of being convenient for is clockwise rotation, has improved the mobility of air on heat-resisting brick surface, has increased the even degree that the air is heated, has improved the efficiency of heat transfer.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic sectional structure of the present invention;

FIG. 3 is a schematic cross-sectional structure diagram of a heat-resistant brick of the present invention;

fig. 4 is a schematic structural view of the supporting steel pipe, the heat receiving sheet, the heat releasing sheet and the air holes of the present invention.

Fig. 5 is a schematic view of the three-dimensional structure of the air guiding plate and the air outlet pipe of the present invention.

In the figure: 1. a steel outer cylinder; 2. a steel inner cylinder; 3. a thermally insulating foam board; 4. heat-resistant bricks; 5. a combustion chamber; 6. a fuel tube; 7. a hot air discharge pipe; 8. supporting the steel pipe; 9. a heat receiving sheet; 10. a heat release sheet; 11. air holes are formed; 12. an air guide plate; 13. an air outlet pipe; 14. an air inlet pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, a furnace shell heat treatment heating device for a blast furnace hot blast stove comprises a steel outer cylinder 1, heat-resistant bricks 4, a fuel pipe 6 and a hot blast discharge pipe 7, wherein the heat-resistant bricks 4 are installed inside the steel outer cylinder 1, one end of the fuel pipe 6 penetrates through the steel outer cylinder 1 and is installed inside the heat-resistant bricks 4, the hot blast discharge pipe 7 is installed at the upper end of the steel outer cylinder 1, a steel inner cylinder 2 is arranged inside the steel outer cylinder 1, a supporting steel plate is welded at the lower ends of the steel outer cylinder 1 and the steel inner cylinder 2, a heat insulation foam plate 3 is filled between the steel outer cylinder 1 and the steel inner cylinder 2, a combustion chamber 5 is arranged in the middle of the heat-resistant bricks 4, the end of the fuel pipe 6 is positioned at the upper end of the combustion chamber 5, a supporting steel pipe 8 is embedded inside the heat-resistant bricks 4, a heating sheet 9 is welded on the inner surface of the supporting steel pipe 8, the strength of the structure of the heat-resisting brick 4 is increased by supporting the heat-resisting brick 4 through the supporting steel pipe 8 embedded in the heat-resisting brick 4, meanwhile, the heating sheet 9 welded on the inner surface of the supporting steel pipe 8 and the heat-releasing sheet 10 welded on the outer surface of the supporting steel pipe 8 are increased, the contact area of the supporting steel pipe 8 and the heat-resisting brick 4 through the heating sheet 9 is increased, the heating efficiency of the supporting steel pipe 8 is improved through the heating sheet 9, the heat-releasing efficiency of the heating sheet 9 is improved through the heat-releasing sheet 10, meanwhile, the air holes 11 formed in the surface of the heat-resisting brick 4 are increased, the contact area of air and the heat-resisting brick 4 is increased, the heat conversion is improved, meanwhile, the steel inner cylinder 2 arranged in the steel outer cylinder 1 and the heat-insulating foaming plate 3 filled between the steel outer cylinder 1 and the steel inner cylinder 2 are formed by the steel outer cylinder 1 and the steel inner cylinder 2, and, meanwhile, the heat insulation foaming plate 3 is convenient for heat insulation of the hot blast stove, and heat loss is reduced.

As a technical optimization scheme of the utility model, the lower end of the steel outer cylinder 1 is provided with an air inlet pipe 14, the air guide plate 12 is arranged in a support steel plate welded with the lower ends of the steel outer cylinder 1 and the steel inner cylinder 2, the air outlet pipe 13 is welded on the upper surface of the air guide plate 12, the air inlet pipe 14, the air guide plate 12 and the air outlet pipe 13 are communicated, the air outlet pipe 13 welded on the upper surface of the air guide plate 12 is twenty, twenty air outlet pipes 13 are respectively arranged in an annular shape with equal intervals, the inclination angle of the air outlet pipe 13 and the horizontal plane is 30 degrees, the air guide plate 12 is arranged in the support steel plate welded with the lower ends of the steel outer cylinder 1 and the steel inner cylinder 2, the air guide plate 12 is respectively communicated with the air outlet pipe 13 and the air inlet pipe 14, the included angle of the air outlet pipe 13 and the horizontal plane is 30 degrees, the wind discharged by the air outlet, the efficiency of heat transfer is improved.

As a technical optimization scheme of the utility model, the piece 9 that receives heat is platelike structure with heat release piece 10, supports 8 outer surface welded of steel pipe heat release piece 10 and is provided with twenty, supports 8 inner surface welded of steel pipe heat release piece 9 and is provided with forty, and twenty heat release pieces 10 equidistant distribute around, and forty receive heat piece 9 equidistant distribute around, have increased heat transfer's speed, have increased the stability of heat-resisting brick 4 structures simultaneously.

As a technical optimization scheme of the utility model, bleeder vent 11 is arc-shaped strip structure, increases the area of air and 4 contacts of heat-resisting brick.

The utility model discloses when using, during the use, gas and air inject the inside of combustion chamber 5 into through fuel pipe 6 and light, 5 inside heats heat-resisting brick 4 through the burning this moment in combustion chamber, the heat is through heated piece 9 after heat-resisting brick 4 is heated simultaneously, support steel pipe 8 and the outside of heat-resisting brick 4 of releasing heat piece 10 fast transfer, inject into the inside air of air guide plate 12 by intake pipe 14 simultaneously, the inside air of air guide plate 12 simultaneously upwards discharges through outlet duct 13, because outlet duct 13 personally submits 30 degrees contained angles with the level, make high-speed rotatory when the air upwards moves, make the gas homogeneous mixing after the burning in air and the combustion chamber 5, the bleeder vent 11 that passes heat-resisting brick 4 surface after the while mixes heats, hot-blast pipe 7 outwards discharges in the blast furnace through hot-blast discharge simultaneously.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (6)

1. The utility model provides a blast furnace hot blast stove outer covering heat treatment firing equipment device, includes steel urceolus (1), heat-resisting brick (4), fuel pipe (6) and hot-blast discharge pipe (7), install the inside at steel urceolus (1) heat-resisting brick (4), the inside at heat-resisting brick (4) is passed through steel urceolus (1) and is installed to the one end of fuel pipe (6), the upper end of steel urceolus (1) is installed to hot-blast discharge pipe (7), its characterized in that: the inside of steel urceolus (1) is provided with steel inner tube (2), the lower extreme welding of steel urceolus (1) and steel inner tube (2) has supporting steel plate, it has thermal-insulated foaming board (3) to fill between steel urceolus (1) and steel inner tube (2), the middle part of heat-resisting brick (4) is provided with combustion chamber (5), just the tip of fuel pipe (6) is located the upper end of combustion chamber (5), the inside of heat-resisting brick (4) is inlayed and is had support steel pipe (8), the interior skin weld who supports steel pipe (8) has heated piece (9), the skin weld who supports steel pipe (8) has exothermic piece (10), bleeder vent (11) have been seted up on the surface that heat-resisting brick (4) are located the support steel pipe (8) outside.

2. The furnace shell heat treatment heating equipment device of the blast furnace hot blast furnace as claimed in claim 1, characterized in that: the lower extreme of steel urceolus (1) is provided with intake pipe (14), be provided with air guide plate (12) in steel urceolus (1) and the welded supporting steel plate of steel inner tube (2) lower extreme, air guide plate's (12) upper surface welding has outlet duct (13), just intake pipe (14), air guide plate (12) and outlet duct (13) are linked together.

3. The furnace shell heat treatment heating equipment device of the blast furnace hot blast furnace as claimed in claim 2, characterized in that: twenty air outlet pipes (13) welded on the upper surface of the air guide disc (12) are arranged, twenty air outlet pipes (13) are arranged at equal intervals in an annular mode, and the inclination angle between each air outlet pipe (13) and the horizontal plane is 30 degrees.

4. The furnace shell heat treatment heating equipment device of the blast furnace hot blast furnace as claimed in claim 1, characterized in that: the heating sheet (9) and the heat releasing sheet (10) are both of a plate-shaped structure, twenty heat releasing sheets (10) welded on the outer surface of the support steel pipe (8) are arranged, and forty heat receiving sheets (9) welded on the inner surface of the support steel pipe (8) are arranged.

5. The furnace shell heat treatment heating equipment device of the blast furnace hot blast furnace as claimed in claim 4, characterized in that: twenty heat-radiating sheets (10) are distributed in a surrounding way at equal intervals, and forty heat-receiving sheets (9) are distributed in a surrounding way at equal intervals.

6. The furnace shell heat treatment heating equipment device of the blast furnace hot blast furnace as claimed in claim 1, characterized in that: the air holes (11) are of arc-shaped strip structures.

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