Calculation method for controlling electric furnace smelting cost

A calculation method and electric furnace smelting technology, applied in the field of metallurgy, can solve problems such as affecting the accuracy of ingredients

Active Publication Date: 2019-11-22
WISDRI ENG & RES INC LTD
View PDF6 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the diversity of scrap steel raw material structure, and the difference of scrap steel types

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Calculation method for controlling electric furnace smelting cost
  • Calculation method for controlling electric furnace smelting cost
  • Calculation method for controlling electric furnace smelting cost

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0120] Taking an 80t electric furnace in a steel factory to produce Q345 steel as an example, the traditional method and the optimized method of the present invention are used for batching, and the composition and price of scrap steel and alloy materials, as well as the electric energy consumption of scrap steel, are determined before the calculation of the optimal batching model of the present invention , at the same time determine the required value of the bulk density of scrap steel and its constraint range, and the target composition and constraint range of the target steel grade. Through the above constraint equation and objective function, use the simplex method to find the minimum value of the objective function when adding various types of scrap steel and alloys , and the results are shown in Table 1.

[0121] Table 1 Optimized ingredient scheme and cost analysis

[0122]

[0123] It can be seen from Table 1 that when the optimized batching model of the present inve...

Embodiment 2

[0125] Taking a 60t electric furnace in a steel factory to produce 45 steel as an example, the traditional method and the optimized method are used for batching, and the composition and price of scrap steel and alloy materials, as well as the electric energy consumption of scrap steel, are determined before the calculation of the optimal batching model of the present invention. Determine the required value of the bulk density of scrap steel and its constraint range, and the target composition and constraint range of the target steel grade. Through the above constraint equation and objective function, use the simplex method to find the addition amount of various types of scrap steel and alloys when the objective function is at a minimum. The results are shown in Table 2.

[0126] Table 2 Optimized ingredient scheme and cost analysis

[0127]

[0128] It can be seen from Table 2 that when the optimal batching model of the present invention is used for batching, the cost of sm...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a calculation method for controlling the smelting cost of an electric furnace. The method comprises the following steps of: according to requirements of target components of a finished product, scrap steel bulk density, scrap steel element oxidation rate, alloy element yield, metal rate of metal materials and scrap steel bulk density, a finished product target component constraint equation, a scrap steel target bulk density constraint equation, a scrap steel and alloy quality constraint equation and an optimized batching target function are constructed, a linear programming mathematical model is constructed according to the equations, and the addition amount of scrap steel and alloy when the smelting cost is minimum are obtained through calculation. According to themethod, factors such as the burning loss rate of elements in the scrap steel, the alloy yield, the scrap steel density and the metal rate of metal raw materials in the smelting process are comprehensively considered; meanwhile, factor coefficients of different scrap steel types to electric energy consumption are introduced into an optimized batching objective function of the smelting cost, a comprehensive optimized batching model of the total cost of scrap steel, alloy and electric energy consumption is constructed, better applicability is achieved for a multi-element raw material structure, and the smelting cost of the electric furnace is effectively reduced.

Description

technical field [0001] The invention belongs to the technical field of metallurgy, and in particular relates to a calculation method for controlling the smelting cost of an electric furnace. Background technique [0002] Scrap steel is an important raw material for electric arc furnace steelmaking and the most important part of the total cost of steelmaking. In reality, there are many types of scrap steel used as raw materials, the composition and density fluctuate greatly, and the price gap is also large. At present, the domestic supply of scrap iron and steel still cannot effectively meet the demand of the steel market, and the price of scrap iron and steel has been at a high level. Therefore, the scientific proportioning of steel scrap is an important link to realize the reduction of the cost per ton of steel in electric furnace steelmaking. It is mainly based on the technical requirements of smelting steel types and smelting process requirements, reasonably matching va...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G06Q30/02G06Q10/04G06Q10/06C21C5/52
CPCG06Q30/0206G06Q10/04G06Q10/06395C21C5/52Y02P10/20
Inventor 操龙虎徐永斌
Owner WISDRI ENG & RES INC LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap