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Construction method for replacement of blast furnace shell in blast furnace overhaul project

A blast furnace shell and construction method technology, applied in blast furnace, blast furnace details, blast furnace parts and other directions, can solve the problem that large crawler cranes cannot enter the operation and the like

Inactive Publication Date: 2018-12-28
CHINA FIRST METALLURGICAL GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The main purpose of the present invention is to provide a construction method for blast furnace overhaul project to replace the blast furnace shell, which aims to reduce the impact on the overall stability and bearing capacity of the furnace body frame, and overcome the problem that large crawler cranes cannot enter the operation

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  • Construction method for replacement of blast furnace shell in blast furnace overhaul project
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  • Construction method for replacement of blast furnace shell in blast furnace overhaul project

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Embodiment Construction

[0038] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0039] It should be noted that, in the description of the present invention, the terms "horizontal", "vertical", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientation or positional relationship indicated by "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, and It is not to indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, or operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be cons...

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Abstract

The invention discloses a construction method for replacement of a blast furnace shell in a blast furnace overhaul project. The construction method comprises the following steps: a new blast furnace shell is divided into sectional combining structures, and a lifting support frame and a pushing trolley are erected on the pushing side of a new blast furnace outside a cast house; a lifting device iserected on a blast furnace top rigid frame, a plurality of furnace body frame platforms on the upper surface of the pushing side of an old furnace shell and the wall surface and roof of the cast houseon the pushing side are dismounted, a pushing channel for the new furnace shell is erected, and the old blast furnace shell and accessory structures to be replaced are dismounted; the lower half of the new blast furnace shell is hoisted with a sequential method; the upper half of the new blast furnace shell is hoisted with a reverse loading method, and the upper half and the lower half of the newblast furnace shell are connected. According to the construction method for replacement of the blast furnace shell in the blast furnace overhaul project, influence on overall stability and bearing capacity of the furnace body frame can be reduced, and the problem of incapability of large crawler cranes to enter for operation is solved.

Description

technical field [0001] The invention relates to the technical field of blast furnace maintenance and construction methods, in particular to a construction method for replacing a blast furnace shell in a blast furnace overhaul project. Background technique [0002] At present, due to the long-term high-temperature environment of the blast furnace body in the domestic iron and steel industry, the furnace shell of the bosh, hearth and the cooling equipment in the furnace shell are most vulnerable to damage. Therefore, each blast furnace basically has to go through the stages of minor repair, medium repair and major repair. Blast furnace overhaul generally involves the furnace body frame not being moved, the furnace shell, cooling equipment and refractory materials in the furnace are all replaced, and part of the furnace top equipment is replaced. Among them, the replacement of the blast furnace shell determines the duration of the entire overhaul and renovation project. [00...

Claims

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Application Information

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IPC IPC(8): C21B7/00
CPCC21B7/00
Inventor 汪艳勇邱国平
Owner CHINA FIRST METALLURGICAL GROUP
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