CN-122015475-A - Control method and device of drying furnace, electronic equipment and storage medium

CN122015475ACN 122015475 ACN122015475 ACN 122015475ACN-122015475-A

Abstract

The embodiment of the invention provides a control method and device of a drying furnace, electronic equipment and a storage medium, and relates to the field of metallurgy, wherein the method comprises the following steps: determining a regulation target parameter and a theoretical gas amount of the drying furnace, drying the drying furnace based on the theoretical gas amount, detecting the combustion temperature, the exhaust gas temperature and the oxygen content of the exhaust gas of the drying furnace in real time, and regulating the opening of a gas regulating valve and an air regulating valve of the drying furnace based on the combustion temperature, the exhaust gas temperature and the oxygen content of the exhaust gas of the drying furnace so as to achieve the regulation target parameter and improve the drying efficiency of the drying furnace.

Inventors

WANG NING
LIU ZHILING
LI WEIHUA
HU LIN
ZHANG YONG
LAI XIAOHUI
YE JIANGANG
WANG YISONG
LIU WEI
QIAN KUN
ZOU YONGGANG

Assignees

新余钢铁股份有限公司

Dates

Publication Date: 20260512
Application Date: 20260407

Claims (10)

1. A control method of a drying oven, which is applied to a lump ore drying system, the method comprising: Determining regulation target parameters and theoretical gas quantity of a drying furnace; drying the drying furnace based on the theoretical gas quantity; detecting the combustion temperature of the drying furnace, the temperature of the waste gas and the oxygen content of the waste gas in real time; And adjusting the opening of a gas regulating valve and an air regulating valve of the drying furnace based on the combustion temperature of the drying furnace, the temperature of the waste gas and the oxygen content of the waste gas so as to achieve the regulation target parameters.
2. The method of claim 1, wherein the lump ore drying system comprises a gas regulating valve, a drying furnace, a dilution fan and an air regulating valve; the gas regulating valve is connected with the drying furnace and controls the quantity of gas conveyed to the drying furnace; the air regulating valve is connected with the drying furnace and controls the air quantity delivered to the drying furnace.
3. The method of claim 1, wherein the step of determining a theoretical amount of gas comprises: acquiring the weight of the lump ore and the moisture content corresponding to the weight of the lump ore in real time; Calculating the current water content to be evaporated based on the weight of the lump ore and the water content; determining an ambient temperature and a target temperature of the flue gas; And calculating the theoretical gas demand according to the water content, the target temperature of the flue gas, the ambient temperature and the gas quantity required by water evaporation per unit mass.
4. The method according to claim 1, wherein the step of adjusting the opening degrees of the gas regulating valve and the air regulating valve of the drying furnace based on the combustion temperature of the drying furnace, the exhaust gas temperature, and the oxygen content of the exhaust gas to achieve the regulation target parameter comprises: Comparing the combustion temperature of the drying furnace with a preset combustion temperature; when the combustion temperature of the drying furnace is smaller than the preset combustion temperature, opening of the gas regulating valve is regulated; when the combustion temperature of the drying furnace is higher than the preset combustion temperature, the opening of the gas regulating valve is reduced; Or; Comparing the exhaust gas temperature with a preset exhaust gas temperature; When the exhaust gas temperature is smaller than the preset exhaust gas temperature, the opening degree of the gas regulating valve is regulated; and when the exhaust gas temperature is higher than the preset exhaust gas temperature, reducing the opening of the gas regulating valve.
5. The method of claim 4, wherein the step of adjusting the opening degree of the gas regulating valve when the combustion temperature of the drying oven is less than the preset combustion temperature comprises: Calculating a first difference value between the combustion temperature of the drying furnace and the preset combustion temperature; determining a first opening compensation value of the gas regulating valve based on the first difference value; and adjusting the opening of the gas regulating valve based on the first opening compensation value.
6. The method of claim 4, wherein the step of increasing the opening of the gas regulating valve when the exhaust gas temperature is less than the preset exhaust gas temperature comprises: calculating a second difference between the exhaust gas temperature and the preset exhaust gas temperature; determining a second opening compensation value of the gas regulating valve based on the second difference value; And adjusting the opening of the gas regulating valve based on the second opening compensation value.
7. The method according to claim 1, wherein the step of adjusting the opening degrees of the gas regulating valve and the air regulating valve of the drying furnace based on the combustion temperature of the drying furnace, the exhaust gas temperature, and the oxygen content of the exhaust gas to achieve the regulation target parameter comprises: comparing the oxygen content with a preset oxygen content; when the oxygen content is smaller than the preset oxygen content, opening of the air regulating valve is regulated; And when the oxygen content is larger than the preset oxygen content, reducing the opening of the air regulating valve.
8. A control apparatus for a drying oven, which is applied to a lump ore drying system, the apparatus comprising: the determining module is used for determining the regulation and control target parameters and the theoretical gas quantity of the drying furnace; the drying module is used for drying the drying furnace based on the theoretical gas quantity; The detection module is used for detecting the combustion temperature, the exhaust gas temperature and the oxygen content of the exhaust gas of the drying furnace in real time; and the adjusting module is used for adjusting the opening degrees of the gas regulating valve and the air regulating valve of the drying furnace based on the combustion temperature of the drying furnace, the temperature of the waste gas and the oxygen content of the waste gas so as to achieve the regulation and control target parameters.
9. An electronic device comprising a memory storing a computer program and a processor implementing the steps of the method of any one of claims 1-7 when the computer program is executed by the processor.
10. A storage medium having stored thereon a computer program, which when executed by a processor performs the steps of the method according to any of claims 1-7.

Description

Control method and device of drying furnace, electronic equipment and storage medium Technical Field The invention relates to the field of metallurgy, in particular to a control method and device of a drying furnace, electronic equipment and a storage medium. Background In existing lump ore drying systems, the adjustment of the furnace temperature is typically dependent on a fixed operating gear (e.g., I, II, III). The operator needs to manually select and switch the gears according to the observed hearth temperature and the exhaust gas temperature, so as to indirectly adjust the combustion gas amount and the corresponding temperature. The method relies on the experience of operators to manually switch the fixed gears, so that accurate and continuous adjustment cannot be realized, and the production efficiency is not optimized and the labor force is liberated. Only a few fixed gears are provided, the efficient linkage with key variables such as flow, moisture and the like of the charged lump ore cannot be realized, and the optimal balance of the drying effect and the energy consumption is difficult to realize. Disclosure of Invention The invention aims to provide a control method and device of a drying furnace, electronic equipment and a storage medium, which can improve the drying efficiency of the drying furnace. In order to achieve the above object, the technical scheme adopted by the embodiment of the application is as follows: In a first aspect, an embodiment of the present application provides a control method of a drying furnace, which is applied to a lump ore drying system, the method including: Determining regulation target parameters and theoretical gas quantity of a drying furnace; drying the drying furnace based on the theoretical gas quantity; detecting the combustion temperature of the drying furnace, the temperature of the waste gas and the oxygen content of the waste gas in real time; And adjusting the opening of a gas regulating valve and an air regulating valve of the drying furnace based on the combustion temperature of the drying furnace, the temperature of the waste gas and the oxygen content of the waste gas so as to achieve the regulation target parameters. In an alternative embodiment, the lump ore drying system comprises a gas regulating valve, a drying furnace, a dilution fan and an air regulating valve; the gas regulating valve is connected with the drying furnace and controls the quantity of gas conveyed to the drying furnace; the air regulating valve is connected with the drying furnace and controls the air quantity delivered to the drying furnace. In an alternative embodiment, the step of determining the theoretical gas amount comprises: acquiring the weight of the lump ore and the moisture content corresponding to the weight of the lump ore in real time; Calculating the current water content to be evaporated based on the weight of the lump ore and the water content; determining an ambient temperature and a target temperature of the flue gas; And calculating the theoretical gas demand according to the water content, the target temperature of the flue gas, the ambient temperature and the gas quantity required by water evaporation per unit mass. In an optional embodiment, the step of adjusting the opening degrees of the gas regulating valve and the air regulating valve of the drying furnace based on the combustion temperature, the exhaust gas temperature and the oxygen content of the exhaust gas of the drying furnace to reach the regulation target parameter includes: Comparing the combustion temperature of the drying furnace with a preset combustion temperature; when the combustion temperature of the drying furnace is smaller than the preset combustion temperature, opening of the gas regulating valve is regulated; when the combustion temperature of the drying furnace is higher than the preset combustion temperature, the opening of the gas regulating valve is reduced; Or; Comparing the exhaust gas temperature with a preset exhaust gas temperature; When the exhaust gas temperature is smaller than the preset exhaust gas temperature, the opening degree of the gas regulating valve is regulated; and when the exhaust gas temperature is higher than the preset exhaust gas temperature, reducing the opening of the gas regulating valve. In an optional embodiment, the step of adjusting the opening of the gas regulating valve when the combustion temperature of the drying furnace is less than the preset combustion temperature includes: Calculating a first difference value between the combustion temperature of the drying furnace and the preset combustion temperature; determining a first opening compensation value of the gas regulating valve based on the first difference value; and adjusting the opening of the gas regulating valve based on the first opening compensation value. In an alternative embodiment, the step of adjusting the opening of the gas regulating valve when the exhaust gas temperat