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Intelligent heating control technology for threaded steel

A technology of intelligent heating and control technology, applied in the direction of heat treatment process control, heat treatment furnace, manufacturing tools, etc., can solve the problems of uneven heating temperature of billet, high fuel consumption, and untimely adjustment, so as to achieve timely temperature adjustment, fuel saving, The effect of improving productivity

Active Publication Date: 2018-12-14
HEFEI ORIENT METALLURGICAL EQUIP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Billet heating is currently mainly fueled by coal gas. Due to the influence of gas calorific value, pressure, temperature, and detection methods, rebar manufacturers use manual judgment of billet heating degree and manual operation in this process, resulting in untimely and inaccurate adjustments. High fuel consumption, uneven billet heating temperature

Method used

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  • Intelligent heating control technology for threaded steel
  • Intelligent heating control technology for threaded steel
  • Intelligent heating control technology for threaded steel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A rebar intelligent heating control technology, characterized in that it comprises the following steps:

[0025] (1) Set multi-point thermocouples in the preheating section, heating section, and soaking section of the billet heating furnace, use the stepping cycle of the heating furnace to track the position change of the billet after entering the furnace, and detect the temperature of each section in real time through the thermocouple;

[0026] (2) Install exhaust gas sampling devices in the exhaust pipes of the preheating section, heating section, and soaking section of the heating furnace to sample and analyze the exhaust gas in each section in real time, and detect the oxygen content and air-fuel ratio of the exhaust gas;

[0027] (3) Install a fuel calorific value detector on the fuel main pipe to detect the fuel calorific value in real time;

[0028] (4) Install a temperature detector on the inlet side of the billet heating furnace and the inlet side of the roughi...

Embodiment 2

[0034] A rebar intelligent heating control technology, characterized in that it comprises the following steps:

[0035] (1) Set multi-point thermocouples in the preheating section, heating section, and soaking section of the billet heating furnace, use the stepping cycle of the heating furnace to track the position change of the billet after entering the furnace, and detect the temperature of each section in real time through the thermocouple;

[0036] (2) Install exhaust gas sampling devices in the exhaust pipes of the preheating section, heating section, and soaking section of the heating furnace to sample and analyze the exhaust gas in each section in real time, and detect the oxygen content and air-fuel ratio of the exhaust gas;

[0037] (3) Install a fuel calorific value detector on the fuel main pipe to detect the fuel calorific value in real time;

[0038] (4) Install a temperature detector on the inlet side of the billet heating furnace and the inlet side of the roughi...

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Abstract

The invention discloses an intelligent heating control technology for threaded steel, and relates to the field of threaded steel production. A multi-point thermocouple is arranged in a preheating section, a heating section and a soaking section of a steel billet heating furnace; a waste gas sampling device is installed on a three-section smoke exhaust pipeline of the preheating section, the heating section and the heat soaking section, and a fuel heat value detector is installed on a fuel main pipe, a temperature detector is installed on the furnace inlet side of the steel billet heating furnace and the inlet side of a roughing mill, the temperature of the steel billet before entering the furnace and the temperature after heating are detected, the temperature after the steel billet is heated is used as a dependent variable, the temperature before the steel billet enters the furnace, the heat value of the fuel, the oxygen content of the waste gas and the air-fuel ratio are used as an independent variable, and a multi-element regression model is built. The temperature before the steel billet enters the furnace, the heat value of the fuel, the oxygen content of the waste gas and the air-fuel ratio are adjusted by resolving a multi-element regression model so as to achieve the temperature after heating of the steel billet; the heating process is intelligently controlled, so that the temperature adjustment is timely and accurate, and the temperature difference of the steel billet after heating is less than 30 DEG C.

Description

Technical field: [0001] The invention relates to the field of screw steel production, in particular to an intelligent heating control technology for screw steel. Background technique: [0002] my country is a well-deserved big country of iron and steel. In the past ten years since the beginning of the new century, my country's iron and steel industry has developed rapidly, and the output of crude steel has increased rapidly. %. At present, there are more than 1,400 iron and steel enterprises in the country. Among them, the output of rebar is about 300 million tons, and there are more than 500 production lines. At present, the level of automation and intelligence of domestic rebar production lines is relatively low, with high dependence on people and high cost. Rebar production has developed rapidly in recent years, from the original single-line rolling to two-slit, three-slit, four-slit, five-slit rolling, six-slit rolling has been successfully tested, and the level of aut...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D9/70C21D11/00G06F17/18G06F17/50
CPCC21D9/70C21D11/00G06F17/18G06F30/20G06F2119/08
Inventor 赵家柱袁永文王平吉吴鹏
Owner HEFEI ORIENT METALLURGICAL EQUIP