A Refractory Masonry Structure for the Feed Hopper of a Ring Cooler

Abstract

The invention discloses a refractory masonry structure for a feed hopper of an annular cooler, comprising a feed hopper, an air-cooled wall is fixedly connected to the bottom of the inner cavity of the feed hopper, and a second air-cooled wall is fixedly connected to the top of the air-cooled wall through a steel plate. Two anchor nails, the surface of the second anchor nail is sleeved with a steel fiber corundum castable, and the top of the steel fiber corundum castable is provided with a heat-resistant and wear-resistant stainless steel plate. In the present invention, the second anchor nail is welded on the upper part of the air-cooled wall of the inner cavity of the hopper, and the continuous welding ensures firmness. The first anchor nail is welded at the bottom of the heat-resistant and wear-resistant stainless steel plate, and the continuous welding ensures firmness. The formwork is erected before construction, and the formwork ensures pouring The material is formed into a slope of at least 30°, and the heat-resistant and wear-resistant stainless steel plate is buckled on the steel fiber corundum castable. The heat-resistant and wear-resistant stainless steel plate and the steel fiber corundum castable form a combined structure, and the material falls to the inclined heat-resistant Grinding the stainless steel plate not only reduces the erosion of the material, but also improves the anti-wear performance.

Description

technical field [0001] The invention relates to the technical field of refractory masonry for an annular cooler of a pellet production line, in particular to a refractory masonry structure for a feed hopper of an annular cooler. Background technique [0002] Pelletizing is a kind of refractory masonry structure method of ring cooler feeding hopper for artificial block raw materials. During the agglomeration process, the material not only changes its physical properties due to rolling into balls and dense particles, but also changes its chemical and physicochemical properties, which improves the metallurgical properties of the material. [0003] The pellets are suitable for large-scale production, with uniform particle size, which can ensure good air permeability of blast furnace charge, high porosity, good reducibility, high cold strength, easy transportation and storage, and is not easy to break. It is not only used in blast furnaces, but also used in Converter, open heart...

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Problems solved by technology

[0006] The object of the present invention is to provide a refractory masonry structure for the feed hopper of the annular cooler, which has simple structural principles, low material cost, and simple construction, and can effectively reduce the wind of the hot pellets falling from the rotary kiln on the feed hopper of the annular cooler. The erosion and wear of refractory materials on the upper part of the cold wall are suitable for ring coolers of various specifications. The advantage of wide coverage solves the problem that the refractory materials on the upper part of the existing air-cooled wall have a low service life and are prone to wear, cracking and crushing, etc. Problems, often need to be rebuilt, which seriously affects continuous production and brings about loss of production stoppage

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