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Method for prolonging the service life of main channel of blaster furnace by utilizing independent bearing structure

A technology of bearing structure and blast furnace, applied in the field of supporting main trench, to achieve the effect of less maintenance, simple method and prolonging service life

Inactive Publication Date: 2014-03-26
LAIWU IRON & STEEL GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] One aspect of the present invention provides a method for prolonging the service life of the blast furnace main ditch by using an independent load-bearing structure, so as to solve the storage problem by constructing an independent load-bearing structure during and after transforming the ramming type main ditch into an iron storage type main ditch. Issues such as heat dissipation and service life of the iron main channel

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  • Method for prolonging the service life of main channel of blaster furnace by utilizing independent bearing structure
  • Method for prolonging the service life of main channel of blaster furnace by utilizing independent bearing structure
  • Method for prolonging the service life of main channel of blaster furnace by utilizing independent bearing structure

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Embodiment Construction

[0022] Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

[0023] figure 1 is a schematic diagram of the arrangement of the blast furnace and the main trench according to the present invention.

[0024] Such as figure 1 As shown, the taphole 11 of the blast furnace 1 communicates with the entrance of the main ditch 2, the support structure (not shown) is arranged under the main ditch 2 to support the main ditch 2 from below, and the flow iron ditch 3 is arranged on the main ditch 2 Below the outlet of the slag ditch 4 is arranged above the main ditch 2, and the slag flowing out from the main ditch 2 flows out from the slag ditch 4 for the next step of processing. The high-temperature molten iron from the blast furnace 1 flows into the main ditch 2 through the taphole 11, and the molten iron flowing out from the main ditch 2 through the skimmer flows into the flow iron ditch 3 for the next step of treatment.

[0025] ...

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Abstract

The invention provides a method for prolonging the service life of a main channel of a blaster furnace by utilizing an independent bearing structure. The method includes the following steps: according to the structure of a cast house of the blaster furnace, the transforming scope of the original supporting structure supporting the main channel is defined; by utilizing the elevation of the original supporting structure, the independent bearing structure, the elevation of which is less than the elevation of the original supporting structure, is prefabricated; within the defined transforming scope of the original supporting structure, the independent bearing structure is arranged under the original supporting structure; and in the period of damping down the blast furnace, the original supporting structure of the main channel is dismantled, so that the main channel is supported by the independent bearing structure.

Description

technical field [0001] The invention belongs to the field of blast furnace industrial construction and smelting technology, and relates to a method for prolonging the service life of a blast furnace main ditch by using an independent load-bearing structure, and more specifically, to a method for transforming a blast furnace main ditch into an iron storage type main ditch. The independent bearing structure replaces the original support structure to support the main ditch to prolong the service life of the main ditch. Background technique [0002] The main ditch arranged in the casthouse of the blast furnace is a channel for guiding high-temperature molten iron and slag. At present, only one taphole is usually designed for medium and small blast furnaces, and the main ditch connected to the taphole has a ramming type main ditch (inside The lining (working lining) adopts two construction methods: carbon ramming material) and iron storage type main ditch. Compared with the ramm...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21B7/14
Inventor 单世静赵春龙孙家荣孔菊赵建磊
Owner LAIWU IRON & STEEL GRP
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