A kind of refractory brick for kiln

Abstract

The invention belongs to the technical field of refractory material manufacturing, and specifically relates to a refractory brick for a kiln; it includes a refractory brick body, and the refractory brick body includes a heat insulation cavity, shrapnel, springs, heat insulation layer, heat insulation unit and locking unit; The brick body is provided with a heat insulation chamber; a pair of shrapnels are hinged at the opening of the heat insulation chamber, and the two shrapnels are hinged to each other; a group of heat insulation layers are arranged in the heat insulation chamber; A set of springs is provided between the heat layers; a heat insulation unit is provided on the side of the refractory brick body away from the shrapnel, and locking units are provided on both sides of the refractory brick body, and the locking units are used to lock the adjacent refractory brick bodies; the present invention The thermally expanded shrapnel drives the heat shield to shake, and the heat shield vibrates to push out the heat insulation unit, which further improves the heat insulation performance of the refractory brick body, reduces heat loss, and reduces production costs.

Description

technical field [0001] The invention belongs to the technical field of refractory material manufacturing, in particular to a refractory brick for a kiln. Background technique [0002] Rotary kiln refers to rotary calcining kiln (commonly known as rotary kiln), which belongs to the category of building materials equipment. Rotary kiln can be divided into cement kiln, metallurgical chemical kiln and lime kiln according to different materials. Cement kilns are mainly used for calcining cement clinker, which can be divided into two categories: dry production cement kiln and wet production cement kiln. Metallurgical and chemical kilns are mainly used for magnetization roasting of lean iron ore in iron and steel plants in the metallurgical industry; oxidative roasting of chromium and nickel-iron ore; roasting of high-alumina bauxite in refractory plants and clinker and aluminum hydroxide in aluminum plants; roasting of chromium ore in chemical plants And minerals such as chromiu...

AI Technical Summary

Problems solved by technology

[0005] In order to make up for the shortcomings of the existing technology, when the refractory bricks are in contact with the metal shell of the rotary kiln close to the refractory bricks, the expansion coefficients of the metal and the refractory bricks are different, and it is easy to squeeze the refractory bricks, causing the refractory bricks to loosen and fall off, reducing the heat preservation of the refractory bricks Performance, the problem of increasing fuel cost, a kind of refractory brick for kiln proposed by the present invention

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