A 4000m using scanning radar 3 High-efficiency and low-consumption smelting method of blast furnace

Abstract

The invention provides a method for implementing efficient and low-consumption smelting of 4000m<3> blast furnace by the aid of a scanning radar and belongs to the field of blast furnace operations. The method includes: acquisition of shapes of charge levels, charge level O / C ratio distribution calculation, establishment of blast-furnace upper adjustment case library, hearth condition evaluation,slag iron emission evaluation, tuyere air feed area and air speed determination, establishment of blast-furnace upper and lower adjustment case libraries, furnace condition matching, furnace conditionoptimizing and furnace condition adjustment unit. The method can adapt to ever-changing furnace conditions, furnace condition data is acquired through the scanning radar, the upper and lower adjustment case libraries are established, the furnace condition adjustment is performed after evaluation and matching, the case libraries are further supplemented with cases, updating and maintaining are facilitated, the problem about accuracy and instantaneity in blast furnace management is solved, and normal smelting of efficient and low-consumption of the blast furnace is realized.

Description

technical field [0001] The invention belongs to the field of blast furnace operation, and specifically provides a 4000m 3 A high-efficiency and low-consumption smelting method in a blast furnace. Background technique [0002] In the past 15 years, the large-scale blast furnace in China has made great strides, and the blast furnace is larger than 1000m 3 There are currently more than 300 large blast furnaces in China, with a total production capacity of more than 500 million tons. The modern blast furnace is a huge high-pressure, high-temperature, high-dust gas generator. During the operation of the blast furnace, due to its huge volume, there are many factors that affect its stable operation, such as fluctuations in the quality of incoming raw materials, equipment failures, and operational differences. Affect the production process of the blast furnace, and the most direct impact of the fluctuation of the production process is the increase of fuel consumption, CO 2 Emissi...

AI Technical Summary

Problems solved by technology

There is a huge gap between this expectation and the current actual operation of the blast furnace. Due to the huge volume and huge inertia of the blast furnace, in the actual process, the adjustment of the upper and lower parts is often not in place. Under the current equipment condition, the upper and lower adjustment measures have been taken in the future. , I don’t know the actual situation of the material surface, which leads to a state of groping for the matching of the upper and lower parts. Whether the operation adjustment is accurate or not is completely an empirical behavior.

Images