Production process of byproduct iron of thermal power plant and reduction kiln thereof

Abstract

The invention relates to a production process of byproduct iron of a thermal power plant and a reduction kiln thereof, comprising the production process and the reduction kiln. The invention aims to solve the technical problem of function waste of a zone easily obtaining high reduction capacity in the burning process of fuel coal. The process is characterized by comprising the following steps of:firstly transforming fire coal into gas; and then making the gas pass through the reduction kiln and reducing the gas to a raw material mineral, wherein the effective components of the gas consumed in the reduction process are 35% of the total amount of the effective components of the gas at most. The reduction kiln of the production process of byproduct iron of thermal power plant is characterized in that the reduction kiln is a rotation kiln. The invention is mainly used for obtaining iron products with lower cost in the form of byproducts, avoids the consumption of coking coal resources and is especially suitable for the technical transformation of newly built thermal power plant s and the traditional power plants.

Description

technical field [0001] The invention relates to a production process of by-product iron in a thermal power plant and a reduction kiln thereof. Background technique [0002] On the one hand, thermal power generation is the main source of electricity in my country. According to reports, most of my country's coal production (about 2 billion tons per year) is only used for thermal power generation. [0003] On the other hand, in the iron and steel industry, although the blast furnace ironmaking process is still in the mainstream position, however, due to the threat of the worldwide shortage of coking coal resources and the unfriendly environment of the sintering and coking industry, countries have carried out non-blast furnace ironmaking. Research. For example, research on various smelting reduction technologies, etc., some of which have already entered into the industrialized production that has begun to take shape. Their iron smelting process is inseparable from the key lin...

AI Technical Summary

Problems solved by technology

[0007] The main technical problems to be solved by the present invention are firstly the problem that the reducing ability of the reducing substances in coal cannot be rationally utilized; or in other words, it solves the waste of functions in the area where the fuel coal is easy to obtain high reducing ability in the combustion process question

In other words, on the one hand, the present invention is to solve the problem that thermal power generation enterprises fail to make reasonable use of the opportunity to obtain a high reducing atmosphere in the early stage of coal and / or gas combustion process; , for example, iron-making enterprises are paying a high price, struggling to manufacture and maintain such a highly reducing atmosphere

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