CN216107036U - Blast furnace base coal gas blowby and stove outer covering rising defect management device - Google Patents
Blast furnace base coal gas blowby and stove outer covering rising defect management device Download PDFInfo
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- CN216107036U CN216107036U CN202122448301.9U CN202122448301U CN216107036U CN 216107036 U CN216107036 U CN 216107036U CN 202122448301 U CN202122448301 U CN 202122448301U CN 216107036 U CN216107036 U CN 216107036U
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Abstract
The utility model relates to a blast furnace base gas blowby and stove outer covering rising defect treatment device, which is characterized in that: consists of: the steel structure top plate, the vertical plate II and the vertical plate III form a steel structure annular body, the blast furnace water cooling pipe and the embedded steel bar assembly are fixedly connected and arranged in the steel structure annular body through the bolt assembly, the gas blowby channel between the cement foundation pier and the steel structure is tightly blocked under the combined action of rigid sealing and elastic sealing at the bottom of a new steel structure, all the gas blowby channels of the steel structure are thoroughly sealed through welding of the vertical plate, the vertical plate and the water cooling pipe, and the compensation effect of trace upward movement of the furnace shell can be achieved. According to the utility model, by manufacturing the steel structure combined seal and pouring and installing the bolt assembly, the forced seal of the blowby gas is realized, the pressurized gas is not leaked, the trend of rising of the furnace shell is retarded, the operation safety of the blast furnace is ensured, and the safe production is realized.
Description
Technical Field
The utility model belongs to the technical field of blast furnace smelting and maintenance in the metallurgical industry, belongs to a treatment method for the defects of pressurized gas blowby at the joint part of a blast furnace shell and a cement foundation pier, outward blowby of the cement foundation pier, and abnormal rising of the blast furnace shell, and particularly relates to a treatment device for the defects of blast furnace foundation gas blowby and furnace shell rising and a manufacturing method aiming at the problems that in the metallurgical industry, in the process of blast furnace operation, blowby gas in a furnace is cracked due to a welding port of a furnace bottom sealing plate structure in the furnace and the blowby gas in the furnace descends.
Background
At present, in the process of running of a blast furnace in the domestic metallurgical industry, due to the fact that welding openings of sealing plate structures of the inner furnace bottom of the blast furnace are cracked, gas in the furnace descends, the defect that the gas under pressure leaks outwards at the joint part of a furnace shell and a cement foundation pier, the gas under pressure leaks from the cement foundation pier, and the abnormal rising of the furnace shell of the blast furnace, the bottom plate of the furnace shell is driven to be separated from the position of the furnace base of the cement foundation pier and the joint part of the cement foundation pier, the defect that the gas under pressure leaks and the abnormal rising of the furnace shell of the blast furnace result in the gas under pressure to flow out of the interior of the blast furnace, the sealing performance is lost, the gas under pressure leaks to cause great influence on safety production, serious personal safety accidents easily occur, the rising of the furnace shell causes serious deformation of a guide pipe and a compensator of a tuyere air supply branch pipe, the deformation amount exceeds the compensation range, a main water pipe at the bottom of the furnace separates from a support seat, and other accident potential hazards seriously affect the safe running of equipment. In the prior art, the smelting intensity is reduced, the pressure in the furnace is controlled, a large-mass counterweight is added at the relevant position of a blast furnace shell, and the blast furnace body is grouted. However, the implementation of these treatment measures seriously affects the blast furnace yield, and the problems of gas blowby of the blast furnace foundation and furnace shell rising cannot be thoroughly solved, and still exist: potential safety production hazards and safe operation of blast furnace equipment. The requirements of long-term, stable and safe operation of the blast furnace cannot be met, and the problems of furnace foundation sealing and furnace shell rising cannot be thoroughly solved for a long time.
Disclosure of Invention
The utility model relates to a blast furnace foundation gas blowby and furnace shell rising defect treatment device, which comprises the following components:
the utility model relates to a blast furnace foundation gas blowby and furnace shell rising defect treatment device, which is characterized in that: consists of: the steel structure top plate, the vertical plate II and the vertical plate III form a steel structure annular body, the blast furnace water cooling pipe and the bar planting assembly are fixedly connected and arranged in the steel structure annular body through a bolt assembly, the reinforcing U-shaped frame is fixedly connected with the bolt assembly and the vertical plate I, one end of the bolt assembly penetrates through the upper part of the steel structure top plate and is fixedly connected with the steel structure top plate, and the blast furnace water cooling pipe is fixedly connected with the vertical plate II and the vertical plate III through welding; the flexible structural member is arranged at the upper part of the steel structure annular body, the gas sealing cover and the reinforcing rib plate assembly are arranged at the upper part of the steel structure top plate, and concrete is poured in the steel structure annular body; the bottom of the blast furnace base gas blowby and furnace shell rising defect treatment device is provided with a device comprising: the fixed support component comprises an expansion bolt, a foundation coaming, a support plate, a bottom plate and a partition plate, wherein the foundation coaming is provided with the expansion bolt and fixedly connected with the support plate, the foundation coaming is fixedly arranged at the lower part of the bottom plate, the partition plate is arranged on the bottom plate, and the upper part of the bottom plate is provided with a polymer bonding rigid seal body and an elastic seal body.
The utility model relates to a device for treating the defects of gas blowby of a blast furnace foundation and rising of a furnace shell, which is characterized in that a gas blowby channel between a cement foundation pier and a steel structure is tightly blocked under the combined action of rigid sealing and elastic sealing at the bottom of the steel structure, all the gas blowby channels of the steel structure are thoroughly sealed by welding a vertical plate, a vertical plate and a water cooling pipe and by welding a flexible part with a top plate, the vertical plate and a gas sealing cover, and can play a role in compensating the slight upward movement of the furnace shell. According to the utility model, by manufacturing the steel structure combined seal and pouring and installing the bolt assembly, the forced seal of the blowby gas is realized, the pressurized gas is not leaked, the trend of rising of the furnace shell is retarded, the operation safety of the blast furnace is ensured, and the safe production is realized.
Drawings
FIG. 1 is a schematic structural view of a blast furnace foundation gas blowby and furnace shell rising defect treatment device;
in the figure: the structure comprises a blast furnace shell 1, a steel structure top plate 2, a bolt assembly 3, a blast furnace water cooling pipe 4, a blast furnace foundation coaming 5, poured concrete 6, a steel bar planting assembly 7, an elastic sealing body 8, a high polymer bonding rigid sealing body 9, an expansion bolt 10, a foundation coaming 11, a supporting plate 12, a bottom plate 13, a partition plate 14, a vertical plate I15, a reinforced U-shaped frame 16, a vertical plate II 17, a vertical plate III 18, a flexible structural member 19, a coal gas sealing cover 20 and a reinforced rib plate assembly 21.
Detailed Description
The utility model relates to a blast furnace base gas blowby and furnace shell rising defect treatment device, which is realized by adopting the blast furnace base gas blowby and furnace shell rising defect treatment device, and is specifically explained by combining an embodiment and an attached drawing.
Referring to fig. 1, the device for treating the defects of gas blowby of the blast furnace foundation and furnace shell rising of the utility model comprises: the steel structure top plate 2, the vertical plate II 17 and the vertical plate III 18 form a steel structure annular body, the blast furnace water cooling pipe 4 and the steel bar planting assembly 7 are fixedly connected and arranged in the steel structure annular body through the bolt assembly 3, the reinforcing U-shaped frame 16 is fixedly connected with the bolt assembly 3 and the vertical plate I15, one end of the bolt assembly 3 penetrates through the upper part of the steel structure top plate 2 and is fixedly connected with the steel structure top plate 2, and the blast furnace water cooling pipe 4 is fixedly connected with the vertical plate II 17 and the vertical plate III 18 through welding; the flexible structural member 19 is arranged at the upper part of the steel structure annular body, the gas sealing cover 20 and the reinforcing plate component 21 are arranged at the upper part of the steel structure top plate 2, and concrete 6 is poured in the steel structure annular body; the bottom of the blast furnace base gas blowby and furnace shell rising defect treatment device is provided with a device comprising: the expansion bolt 10 is arranged on the foundation coaming 11 and fixedly connected with the supporting plate 12, the foundation coaming 11 is fixedly arranged at the lower part of the bottom plate 13, the partition plate 14 is arranged on the bottom plate 13, and the macromolecule bonding rigid sealing body 9 and the elastic sealing body 8 are arranged at the upper part of the bottom plate 13.
The method for manufacturing the blast furnace foundation gas blowby and furnace shell rising defect treatment device comprises the following steps:
(1) manufacturing a blast furnace foundation gas blowby and furnace shell rising defect treatment device at the periphery of the blast furnace bottom, the furnace foundation and the cement foundation pier; firstly, a steel structure ring body is manufactured, a steel structure top plate 2, a vertical plate I15, a vertical plate II 17 and a vertical plate III 18 are connected into a whole through welding to manufacture the steel structure ring body, a blast furnace water cooling pipe 4 and a bar planting assembly 7 are fixedly connected and arranged in the steel structure ring body through a bolt assembly 3, a combined sealing mechanism of a high polymer bonding rigid sealing body 9 and an elastic sealing body 8 is manufactured at the bottom, and a coal gas sealing cover 20 is fixedly connected through wrapping, welding and adopting the blast furnace water cooling pipe 4, the vertical plate II 17 and the vertical plate III 18 to realize the plugging of the leakage of the furnace base coal gas; the blast furnace foundation coaming 5 is connected with the bottom of the blast furnace shell 1, a combined sealing structure of a bottom macromolecule bonded rigid sealing body 9 and an elastic sealing body 8 is manufactured at the lower part of the blast furnace foundation coaming 5, and a flexible structural member 19 and a gas sealing cover 20 are welded, fixed and connected to realize thorough control of the leakage and plugging of the furnace foundation gas;
(2) the steel construction ring body is through adopting expansion bolts 10 to fix basic bounding wall 11 on cement base mound, weld fixation connects backup pad 12 on basic bounding wall 11, bottom plate 13 and baffle 14, reinforcing plate subassembly 21 and steel construction roof 2 fixed connection that set up in the bottom of blast furnace shell 1, construction bolt subassembly 3, again with connect riser I15, consolidate U type frame 16, riser II 17, riser III 18 and flexonics spare 19 and fastening bolt subassembly 3, the stove shell has been hindered to rise, ensure blast furnace operation safety, realize safety in production.
The working principle is as follows:
the device for treating the blast furnace foundation gas blowby and furnace shell rising defect of the utility model blocks the furnace foundation gas blowby channel, by installing expansion bolts 10, a foundation coaming 11, a welding support plate 12, a bottom plate 13, a clapboard 14, a combined sealing mechanism for manufacturing a high polymer bonding rigid sealing body 9 and a welding vertical plate I15 to manufacture an elastic sealing body 8, and by wrapping and welding a plurality of blast furnace water cooling pipes 4 and welding and fixedly connecting with a flexible structural member 19 and a gas sealing cover 20 through a peripheral new steel structural vertical plate II 17 and a vertical plate III 18, the purposes of treating the furnace foundation gas leakage and blocking are realized, and the gas content in the air of the production working environment of the furnace bottom and the furnace foundation is ensured to meet the national standard requirement of the safety of the blast furnace production environment gas.
According to the utility model, the cast concrete structure is manufactured, the bolt assembly 3 is arranged in the cast concrete structure, and the blast furnace shell 1 is forcibly tensioned through the steel structure top plate 2, so that the rising trend of the blast furnace shell 1 is prevented. A steel structure top plate 2 is welded at the root of a blast furnace shell 1, a steel bar embedded part 7 and a mounting bolt component 3 are implanted and chemically fixed in a drilling mode on the side surface of a foundation pier, and a vertical plate I15, a reinforced U-shaped frame 16, a vertical plate II 17, a vertical plate III 18, a flexible structural part 19 and a reinforcing rib plate 21 are fixedly connected in a welding mode. Pouring concrete 6, realize that fixing bolt subassembly 3 holds blast furnace shell 1, so as to prevent and realized that blast furnace shell 1 no longer continues to rise, in blast furnace production operation, the safety of blast furnace equipment has been guaranteed, overcome and stop rising of furnace shell and lead to furnace roof eduction tube and wind gap air supply branch pipe compensator to warp seriously, the deflection exceeds the trend of compensation scope, multiple accident hidden danger such as stove bottom main water pipe break away from seat has been solved, the safe operation of ironmaking equipment has been guaranteed, the operating factor of blast furnace production has been improved, the blast furnace output has been improved, create very high economic benefits when guaranteeing blast furnace equipment safety.
The utility model adopts the blast furnace foundation gas blowby and furnace shell rising defect treatment device, the gas blowby channel between the cement foundation pier and the steel structure is tightly sealed by the combined action of rigid sealing and elastic sealing at the bottom of the steel structure, all the gas blowby channels of the steel structure are completely sealed by welding the vertical plate, the vertical plate and the water cooling pipe, and the flexible piece, the top plate, the vertical plate and the gas sealing cover, and the compensation effect of trace upward movement of the furnace shell can be achieved. According to the utility model, by manufacturing the steel structure combined seal and pouring and installing the bolt assembly, the forced seal of the blowby gas is realized, the pressurized gas is not leaked, the trend of rising of the furnace shell is retarded, the operation safety of the blast furnace is ensured, and the safe production is realized.
Claims (1)
1. The utility model provides a blast furnace base coal gas blowby and stove outer covering defect management device that rises which characterized in that: consists of: the steel structure annular body is composed of a steel structure top plate (2), a vertical plate II (17) and a vertical plate III (18), the blast furnace water cooling pipe (4) and the steel bar planting assembly (7) are fixedly connected and arranged in the steel structure annular body through a bolt assembly (3), a reinforcing U-shaped frame (16) is fixedly connected with the bolt assembly (3) and the vertical plate I (15), one end of the bolt assembly (3) penetrates through the upper part of the steel structure top plate (2) and is fixedly connected with the steel structure top plate (2), and the blast furnace water cooling pipe (4) is fixedly connected with the vertical plate II (17) and the vertical plate III (18) through welding; the flexible structural member (19) is arranged at the upper part of the steel structure annular body, the gas sealing cover (20) and the reinforcing rib plate assembly (21) are arranged at the upper part of the steel structure top plate (2), and concrete (6) is poured in the steel structure annular body; the bottom of the blast furnace base gas blowby and furnace shell rising defect treatment device is provided with a device comprising: the fixed support component that expansion bolts (10), basic bounding wall (11), backup pad (12), bottom plate (13) and baffle (14) constitute is equipped with expansion bolts (10) and backup pad (12) fixed connection on basic bounding wall (11), and fixed the setting is in the lower part of bottom plate (13) in basic bounding wall (11), is equipped with baffle (14) on bottom plate (13), is equipped with polymer bonding rigidity seal (9) and elastic seal (8) on the upper portion of bottom plate (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122448301.9U CN216107036U (en) | 2021-10-12 | 2021-10-12 | Blast furnace base coal gas blowby and stove outer covering rising defect management device |
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| CN202122448301.9U CN216107036U (en) | 2021-10-12 | 2021-10-12 | Blast furnace base coal gas blowby and stove outer covering rising defect management device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113817885A (en) * | 2021-10-12 | 2021-12-21 | 刘海龙 | Blast furnace base gas blowby and furnace shell rising defect treatment device and manufacturing method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113817885A (en) * | 2021-10-12 | 2021-12-21 | 刘海龙 | Blast furnace base gas blowby and furnace shell rising defect treatment device and manufacturing method |
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