Vertical furnace with sectional heating combustion chamber and heating method of vertical furnace

Abstract

The invention relates to a vertical furnace with a sectional heating combustion chamber and a heating method of the vertical furnace. The vertical furnace comprises the combustion chamber, a carbonization chamber, a regenerative chamber, a furnace roof and a small flue, wherein the upper part and the lower part of the combustion chamber respectively communicate with the upper part and the lower part of the regenerative chamber; a coal gas first-section supply opening is formed in the bottom of a vertical flue of the combustion chamber; a coal gas second-section supply opening is formed in the middle of the vertical flue of the combustion chamber; a coal gas third-section supply opening is formed in the top of the vertical flue of the combustion chamber; and the combustion chamber is provided with a central partition wall which divides the combustion chamber into a left combustion chamber and a right combustion chamber in the longitudinal direction. High-heating uniformity of the vertical furnace can be improved effectively, the purpose of increasing the height of the carbonization chamber is achieved, and large-scale development of the vertical furnace is realized; meanwhile, combustion temperature and combustion intensity of the bottom and the top of the combustion chamber can be reduced, and the temperature of the high temperature point is reduced, so that generation of NOx is reduced, and environmental protection is facilitated further; and the vertical furnace is convenient to operate and adjustable in air flow, and facilitates improvement of production efficiency and thermal engineering efficiency.

Description

technical field [0001] The invention relates to a vertical furnace, in particular to a vertical furnace with section heating of a combustion chamber and a heating method thereof. Background technique [0002] In the 1970s and 1980s, vertical furnaces were widely used to produce city gas and semi-coke. In recent years, the country has developed strict control over environmental pollution sources, and the domestic demand for metallurgical coke has been declining. However, the concept of new energy semi-coke industry has given vertical furnaces room for development. At present, the semi-coke output of the vertical furnace is low, the thermal efficiency is low, the environmental protection efficiency is also low, and the investment and floor area are relatively large. In order to solve the above problems, improve production efficiency, and reduce environmental pollution, the vertical furnace should be developed toward large-scale development. Increasing the height of the retort...

AI Technical Summary

Problems solved by technology

At present, the semi-coke output of the vertical furnace is low, the thermal efficiency is low, the environmental protection efficiency is also low, and the investment and floor area are too large

In order to solve the above problems, improve production efficiency, and reduce environmental pollution, the vertical furnace should be developed toward large-scale development. Increasing the height of the retort section is one direction to increase the output of semi-coke. However, due to the influence of high-level heating, the development of large-scale vertical furnaces is relatively slow.

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