Converter lining structure

A converter furnace lining and furnace lining technology, applied in the direction of manufacturing converters, etc., can solve the problems of increasing use and maintenance costs, affecting the life safety of furnace linings, and fast erosion speed, so as to improve the safety and reliability of use, reduce maintenance costs, and reduce maintenance costs. Reduced effect of erosion and scour wear

Inactive Publication Date: 2016-05-25
SHANDONG IRON & STEEL CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The defect of this structure and process is that the molten pool part of the converter is still the weak link, the erosion speed is the fastest,

Method used

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  • Converter lining structure

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Embodiment Construction

[0019] In order to better understand the present invention, the implementation manner of the present invention will be explained in detail below in conjunction with the accompanying drawings.

[0020] The following is an example of the furnace diagram structure of a 120-ton converter to illustrate the specific structure of the molten pool lengthening in the furnace lining structure.

[0021] Such as figure 1 , figure 2 As shown, a converter lining structure includes an outer furnace body 1, a permanent layer lining 3 connected to the furnace body 1, a working layer lining 2 is provided on the inner side of the permanent layer lining, and the working layer lining includes a furnace bottom 4, a furnace Pool 5, the bottom of the molten pool is connected to the bottom of the furnace, the bottom of the furnace and the molten pool are made of magnesia-carbon bricks, and the molten pool is superimposed by multi-layer annular magnesia-carbon bricks in the height direction to form th...

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Abstract

The invention discloses a converter lining structure. The converter lining structure comprises a converter body at the outer side and a permanent layer lining connected with the converter body, wherein a working layer lining is arranged at the inner side of the permanent layer lining, the working layer lining comprises a converter bottom and a molten bath, the bottom of the molten bath is connected with the converter bottom, a plurality of layers of annular magnesium carbon brick bodies are superposed in the height direction of the molten bath to form a molten bath integral structure, the horizontal length of the plurality of layers of annular magnesium carbon brick bodies is gradually increased from an upper layer to a bottom layer, the thickness of the molten bath is gradually increased from the upper layer to the bottom layer, and the diameter of an inner cavity of each layer is gradually reduced from the upper layer to the bottom layer. By adopting the converter lining structure, the erosion speed of the molten bath lining bricks can be slowed down, the service life of the converter lining is prolonged, the safety of the lining is guaranteed, and the consumption of a magnesium material and a repairing mass in the production process of a converter is reduced.

Description

technical field [0001] The invention relates to the technical field of steelmaking equipment, in particular to a converter lining structure for steelmaking. A new furnace building method that can prolong the overall life of the converter lining and reduce the production cost of the converter. Background technique [0002] The furnace lining method of the steelmaking converter in the prior art is a comprehensive furnace, that is, according to the converter smelting process and smelting cycle, the structure of the converter lining is analyzed according to the gradient change law of the molten steel temperature drop during the smelting process, and a comprehensive Considering high efficiency, long life, low consumption and ensuring the maximum safety factor in the case of frequent shaking of the furnace, a two-layer plan for the converter masonry is determined, namely the permanent layer and the working layer; according to the environment in which the lining refractory material...

Claims

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Application Information

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IPC IPC(8): C21C5/44
CPCC21C5/44
Inventor 刘效森王念欣尚玉民贾崇雪张吉磊于海燕刘国李凯玉李兴彬崔立镇
Owner SHANDONG IRON & STEEL CO LTD
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