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Method for measuring and calculating filling material line in blast furnace opening charge combined calculation

A filling material and material line technology, which is applied in computer material science, manufacturing calculation system, chemical statistics, etc., can solve the problems of large variation, affecting the loading of furnace materials and the preparation process of furnace opening, etc.

Active Publication Date: 2021-10-01
SHANXI TAIGANG STAINLESS STEEL CO LTD
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Problems solved by technology

The disadvantage of this method is that it does not take into account that the charge compression rate changes linearly at the level of the furnace height, and is not a fixed value, and the material line calculated by the traditional method after filling is often worse than the actual loading situation. In the process of actually loading and opening the furnace charge, once a deviation is found, in order not to affect the overall ore-coke ratio and total coke ratio of the furnace charge, it is necessary to perform complex adjustment calculations, which will affect the charge loading and furnace preparation process

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  • Method for measuring and calculating filling material line in blast furnace opening charge combined calculation
  • Method for measuring and calculating filling material line in blast furnace opening charge combined calculation
  • Method for measuring and calculating filling material line in blast furnace opening charge combined calculation

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Embodiment Construction

[0033] The specific embodiments of the present invention are further described below through examples, but the specific embodiments of the present invention are not limited to the following examples.

[0034] Taking the combined calculation process of a blast furnace charge as an example, the blast furnace is divided into 15 sections in terms of height, and the volume and compression ratio of each section are shown in the following table:

[0035] Table 1 Calculation of Blast Furnace Compression Ratio

[0036]

[0037] 1. The first calculation

[0038] (1) Calculation of the compression ratio of each section

[0039] As shown in Table 1, the blast furnace is divided into 15 sections along the height, and the material lines of each section are shown in Table 1, and the compression ratio of the first section ε 1 5%, the 15th segment compression ratio ε 15 is 15%, use the calculation formula (1) to calculate the compression ratio of each segment:

[0040] Stage 2 compressi...

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Abstract

A method for measuring and calculating a filling material line in blast furnace opening charge combined calculation belongs to the field of metallurgy, and comprises the following steps of: deriving a judgment method and a calculation formula for judging the filling material line in blast furnace opening charge calculation according to the relationship among the volume of the filling material, the compression ratio and the filling material line in a blast furnace opening charge process, wherein the calculation formula of compression ratio of each section is shown in the specification, epsilon i is the compression ratio of the ith section, the value range of i is 1-n, and the unit is %; and n is the number of unit spaces divided from the zero stock line of the blast furnace to the central line of the tuyere, and the value range of n is 6-15. The filling material line can be accurately judged in the combined calculation process of the blast furnace opening charge, so that it is ensured that the actual furnace opening charge is loaded into the blast furnace without errors, and it is ensured that the overall ore-coke ratio and the total coke ratio of opening furnace charge are consistent with the plan.

Description

technical field [0001] The invention relates to a method for measuring and calculating the filling material line in the joint calculation process of the starting charge of the iron and steel metallurgy blast furnace. Background technique [0002] Accurate calculation of the filling material line is an important link in the joint calculation process of the blast furnace start-up charge. If the theoretical calculation results of the start-up charge are to be loaded into the blast furnace without error, it is necessary to ensure the accuracy of the filling material line in the calculation. If the theoretical calculation of the filling material If the line is not accurate enough, the actual charging will be inconsistent with the planned charging. In order to meet the requirements of the material line, either more or less batches of material will be loaded, and the result will affect the overall charging of the furnace. The ore coke ratio and the total coke ratio also have a cert...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G16C60/00G16C20/70G06F17/18
CPCG16C60/00G16C20/70G06F17/18Y02P90/30
Inventor 巩黎伟李昊堃宋建忠郑伟张智王兆辉梁建华
Owner SHANXI TAIGANG STAINLESS STEEL CO LTD
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