Powdered coal microwave pyrolysis and retorting furnace

Abstract

The invention discloses a powdered coal microwave pyrolysis and retorting furnace. The furnace comprises a feeding elevator, a limited and sealed coal storage bunker, a limited and sealed coal feeding bunker, a pre-heating drying section furnace body (2), ceramic panel turnover machines (3), a heating section furnace body (4), pyrolysis and retorting section furnace bodies (5), a cooling section furnace body (6), a discharge section furnace body (7), a coal gas lifting channel (8), a fire-resistant thermal insulation system (9), a microwave system (10), microwave leaky antennas (11), a rack platform (12), a semi-coke cooling system and coal gas water seal (13), a semi-coke collection system (14) and a crude gas collection port (15), wherein microwave inhibition and anti-explosion devices are arranged at junctions of components of a main furnace body. Pyrolysis and retorting of powdered coal are realized on the basis of a microwave heating principle and a non-thermal catalytic effect, and accordingly, compared with existing predominant gas thermal carrier retorting process, the powdered coal microwave pyrolysis and retorting furnace has remarkable advantages of adaptability to raw material coal with vaster specifications, high pyrolysis speed and production efficiency, good product quality, avoidance of environment pollution and the like.

Description

technical field [0001] The invention relates to a dry distillation furnace, in particular to a microwave pulverized coal cracking dry distillation furnace. Background technique [0002] (1) The project is in line with the overall strategy of national economic development and promotes the rapid development of regional economy. The Eleventh Five-Year Plan of my country's national economic and social development points out that it supports the western region to "transform resource advantages into industrial advantages, vigorously develop characteristic industries, strengthen clean energy, and advantages Mineral resource development and processing". Based on the rich local coal resources, this project produces high-quality semi-coke (which can be used as metallurgical injection material and power plant injection coal), high-quality light component coal tar (which can be hydrogenated to produce diesel and gasoline), high calorific value Component coal gas (most of its components a...

AI Technical Summary

Problems solved by technology

Taking a thermal power enterprise that burns 1 million tons of low-grade coal annually as an example, if it adopts the method of direct combustion without upgrading and processing, it will save more than 50,000 tons of tar with a very high market value and a considerable amount of tar each year. Gas is a great waste of national strategic resources

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