A brick-embedded stave structure resistant to thermal stress damage

Abstract

The invention discloses a stave brick-embedded structure resistant to thermal stress damage, which comprises a stave wall body, the heating surface of the stave wall body is inlaid with several refractory bricks arranged in sequence; the front end face of the refractory brick It is an inlaid surface, inlaid in the wall body of the cooling wall, the rear end surface opposite to the front end surface is the working surface, and the other four surfaces are non-working surfaces; among the four non-working surfaces, two non-working surfaces are set as inclined planes , so that brick joints are formed between adjacent refractory bricks; the brick joints are provided with refractory mortar. The present invention absorbs the thermal strain of the refractory bricks in a high-temperature environment by arranging materials with different elastic modulus values ​​occupying a certain space, so as to reduce or eliminate the internal thermal stress of the refractory brick lining structure.

Description

technical field [0001] The invention relates to a modern blast furnace shell structure, more particularly, to a cooling stave inlaid brick structure resistant to thermal stress damage. Background technique [0002] In order to improve the service life of modern blast furnaces, brick-inlaid cooling staves are often installed on the furnace shell of the furnace body. This is a structure inlaid with refractory bricks on the metal structure. This structure includes metal (cast iron, copper, etc.) structure , built-in water cooling pipes, etc., refractory bricks are inlaid on the metal structure, such as figure 1 shown. [0003] Due to the harsh environmental conditions, the use time of this part of the refractory bricks embedded in the cooling wall body (the time to play the role of heat insulation and wear resistance) is often not long, as long as two or three years, and as short as a few months. Longevity affects. The refractory bricks inlaid on the cooling stave actually u...

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Problems solved by technology

[0003] Due to the harsh environmental conditions, the service life of the refractory bricks embedded in the stave wall (the time to play the role of heat insulation and wear resistance) is often not long, ranging from two to three years to a few months. longevity impact

The refractory bricks inlaid on the cooling stave in actual use, the bad phenomenon is mainly reflected in the occurrence of fragmentation, damage and falling off, so that the metal wall of the cooling stave is directly exposed, and is directly washed by the high temperature charge and air flow in the furnace, directly affecting the use of the cooling stave life

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