Energy-saving rotary kiln and furnace lining fireproof brick building slurry

Abstract

The invention discloses an energy-saving rotary kiln and furnace lining fireproof brick building slurry. The energy-saving rotary kiln consists of a cylindrical steel body kiln shell, a plurality of high-temperature fireproof brick steel plate dies, and steel plate die supporting columns, high-temperature fireproof bricks and fireproof brick building slurry which are welded together, wherein the fireproof brick building slurry is high in filling property, contractibility and sintering performance. The intensity is high, and the furnace condition of a blast furnace can be kept stable (the depth of an iron notch, the fluctuation of the smelting time and the full-blast plugging rate), so that the yield of the blast furnace is increased; the slag resistance performance is high, and the energy-saving rotary kiln can resist corrosion and scouring; no crack is generated during quick heating, so that the combination strength is high; the energy-saving rotary kiln has certain contractibility under high temperature and is high in ventilation property and high in intensity, so that the phenomenon that the fireproof bricks are broken due to expansion in a high-temperature environment is avoided.

Description

technical field [0001] The invention relates to the field of industrial kilns, in particular to an energy-saving rotary kiln and the refractory brick masonry slurry for the lining of the rotary kiln; it is a kiln suitable for sintering processing of metallurgy, cement, chemical industry, lime and the like. Background technique [0002] Rotary kiln (rotary kiln) has a long history of being used in metallurgy, cement, chemical industry, lime and other sintering processes; the traditional masonry method is to use two square logs on each side of the refractory when the rotary kiln is half built. On the lining, then use three lead screws to support the two ends and the middle part of the square wood respectively, rotate the kiln body 180 degrees and then build half of the remaining part. This kind of masonry method is specifically reflected in the shortage of production practice. The advantage is that the safety factor is low in practical applications, because refractory linings ...

AI Technical Summary

Problems solved by technology

[0002] Rotary kiln (rotary kiln) has a long history of being used in metallurgy, cement, chemical industry, lime and other sintering processes; the traditional masonry method is to use two square logs on each side of the refractory when the rotary kiln is half built. On the lining, then use three lead screws to support the two ends and the middle part of the square wood respectively, rotate the kiln body 180 degrees and then build half of the remaining part. This kind of masonry method is specifically reflected in the shortage of production practice. The advantage is that the safety factor is low in practical applications, because refractory linings such as refractory bricks have positive and negative errors regardless of international and national standards, so the refractory lining built by masonry cannot be on the same level. Hazards to personal safety may arise at any time

Low work efficiency: when using lead screw masonry, the longest masonry can only be three meters at a time, and the fastest masonry time for each top is three days. For example, it takes about 80 days for an 80-meter-long rotary kiln to be masonry , and the labor intensity of workers is high, and the tools used in masonry are expensive

Increased required energy consumption increases business costs

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