Refractory masonry structure of ring cold machine feed hopper

Abstract

The invention discloses a refractory masonry structure of a ring cold machine feed hopper. The refractory masonry structure comprises a feed hopper, the bottom of an inner cavity of the feed hopper isfixedly connected with an air cooling wall, the top of the air cooling wall is fixedly connected with a second anchoring nail through a steel plate, the surface of the second anchoring nail is sleeved with a steel fiber corundum castable, and a heat-resistant and wear-resistant stainless steel plate is arranged at the top of the steel fiber corundum castable. The second anchoring nail is welded to the upper portion of the air cooling wall of the inner cavity of the feed hopper, firmness is guaranteed through continuous welding, the first anchoring nails are welded to the bottom of the heat-resisting and wear-resisting stainless steel plate, and the firmness is guaranteed through continuous welding; the formwork is erected before construction, and the formwork guarantees that castable is inclined by at least 30 degrees; the heat-resisting and wear-resisting stainless steel plate is buckled on the steel fiber corundum castable in a pressing mode, the heat-resisting and wear-resisting stainless steel plate and the steel fiber corundum castable form a combined structure, materials fall onto the heat-resisting and wear-resisting stainless steel plate which is obliquely arranged, scouring of the materials is weakened, and the wear-resisting performance is improved.

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] Pellet is a kind of refractory masonry structure method of ring cooler feeding hopper for artificial block raw materials. It is a process of turning powdery iron ore into physical properties and chemical composition that can meet the requirements of the next step of ironmaking. During the agglomeration process, the physical properties of the material not only change due to rolling into balls and dense particles, but more importantly, the chemical and physical chemical properties occur, which improves the metallurgical properties of the material. [0003] Pellets are suitable for large-scale production, with uniform particle size, good air permeability of blast furnace charge, high porosity, good reducibility, high cold s...

AI Technical Summary

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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