Smelting palletizing shaft furnace air-guiding wall and building method thereof

Abstract

The invention relates to a smelting palletizing shaft furnace air-guiding wall and a building method thereof, belonging to the field of smelting palletizing shaft furnaces. The air-guiding wall body is an arch-up flat-down or arch structure; firebricks for building the air-guiding wall body comprise wedge-shaped, T-shaped, L-shaped and reverse I-shaped firebricks as well as lining bricks provided with vent holes in the middle part; the air-guiding wall body is paved and built according to the number of layers and the position; the bottom of the air-guiding wall body is supported by a heat-resistant metal cork base and a support pillar under the cork base; cover plate bricks cover the upper part of the air-guiding wall; and triangular castables are cast on the cover plate brick. In the invention, firebricks with various types are paved and built according to the number of layers and the position by a reasonable method; and because of small clearance, the sealing performance of the air-guiding wall body is superior to similar air-guiding walls; besides, the novel brick is small in volume, light in weight and convenient to carry and operate. The support device is arranged at the lower part of the air-guiding wall, thereby ensuring favorable heat-resistant performance, easy production and installation and large support force.

Description

technical field [0001] The utility model relates to a shaft furnace for producing oxidation pellets in the metallurgical industry, in particular to a smelting pellet shaft furnace wind guide wall used in a sintering pellet mechanical shaft furnace and a masonry method thereof. Background technique [0002] At present, the raw material pellets used in the smelting blast furnaces of relatively large iron and steel plants in my country are all produced by mechanical shaft furnaces. Because of its high output, good quality, and the ability to use the waste gas produced by the blast furnace itself as fuel in smelting production, it has gradually replaced the old sintering method in recent years. In the prior art, the girder supporting the wind guide wall (also known as the large water beam) is welded by two seamless steel pipes with an elbow at one end, and the cooling water enters from the lower pipe and returns from the upper pipe through the elbow. At this time, the inside of...

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Problems solved by technology

[0007] The purpose of the present invention is to solve the problem of low output and high cost of the smelting shaft furnace due to the short service life of the wind guide wall girder and the wind guide wall, as well as the problems of troublesome handling and difficult replacement of high-alumina and frame-edge refractory bricks, providing A wind-guiding wall and supporting structure built with new bricks, canceling the girder of the existing smelting shaft furnace, saving production costs, reducing the accident rate of the shaft furnace, and the air-guiding wall of the smelting pellet shaft furnace and its masonry method

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