Gas top-fired high-temperature energy-saving continuous kiln

Abstract

A gas top-combustion high-temperature energy-saving continuous kiln, including at least one single kiln, and a burner, a kiln bottom heat exchanger and a flue gas circulation system arranged on the single kiln, characterized in that: the burner is a vertical The ceramic burner is set at the center of the vault of the kiln body; the kiln bottom heat exchanger is a tubular ceramic heat exchanger, which is respectively installed in the annular flue, the main flue, and the branch flue at the bottom of the kiln; The kiln wall of the body is a hollow cavity structure; the bottom of the hollow cavity of the kiln wall communicates with the cold air inlet installed at the bottom of the furnace, and the top of the hollow cavity of the kiln wall communicates with the hot air installed on the upper part of the outer wall of the kiln wall through the hot air pipe. The exit is connected.

Description

technical field [0001] The invention relates to a high-temperature firing kiln suitable for ceramics and refractory material industries, in particular to a gas top-combustion high-temperature energy-saving continuous kiln. [0002] Background technique [0003] At present, the high-temperature firing kilns in the ceramic and refractory industries are generally tunnel kilns and downdraft kilns. The tunnel kiln is a continuous firing kiln, which uses the countercurrent principle and has the characteristics of short cycle, large output, high quality, high heat utilization rate, good heat retention and waste heat utilization. The disadvantage is that the firing system should not be changed arbitrarily. It is generally only suitable for mass production and products with basically the same firing system requirements, and the flexibility is poor. Downdraft kiln is a kind of intermittent kiln. When the flame comes out of the burner and then goes up to the top of the kiln, it trans...

AI Technical Summary

Problems solved by technology

But the disadvantage is that after the flame descends from the kiln roof, it is discharged through the flue and the chimney, the discharge temperature is very high, and the heat loss is large. In addition, it is intermittent, and the waste heat is difficult to use; The structure of the kiln body (kiln roof) is greatly affected, and it cannot be fired at high temperature

Images