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GB/T 32974-2024: Methods of determination and calculation of heat balance in regenerative furnace of iron and steel industry
Status: Valid GB/T 32974: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 32974-2024 | English | 519 |
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Methods of determination and calculation of heat balance in regenerative furnace of iron and steel industry
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GB/T 32974-2024
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| GB/T 32974-2016 | English | 439 |
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Methods of determination and calculation of heat balance in regenerative furnace of iron and steel industry
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GB/T 32974-2016
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PDF similar to GB/T 32974-2024
Basic data | Standard ID | GB/T 32974-2024 (GB/T32974-2024) | | Description (Translated English) | Methods of determination and calculation of heat balance in regenerative furnace of iron and steel industry | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H04 | | Classification of International Standard | 77��010 | | Word Count Estimation | 26,292 | | Date of Issue | 2024-09-29 | | Date of Implementation | 2025-04-01 | | Older Standard (superseded by this standard) | GB/T 32974-2016,GB/T 32971-2016 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 32974-2024: Methods of determination and calculation of heat balance in regenerative furnace of iron and steel industry
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 77-010
CCSH04
National Standard of the People's Republic of China
Replaces GB/T 32974-2016, GB/T 32971-2016
Regenerative Industrial Furnaces in the Steel Industry
Thermal balance test and calculation method
Released on 2024-09-29
2025-04-01 Implementation
State Administration for Market Regulation
The National Standardization Administration issued
Foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents"
Drafting.
This document replaces GB/T 32974-2016 "Test and calculation method for heat balance of regenerative industrial furnaces in the steel industry" and
GB/T 32971-2016 "Test and calculation method for heat balance of regenerative ladle baking system in the steel industry", which is similar to GB/T 32974-2016
The main technical changes are as follows.
a) Added the test scope of heat balance of regenerative ladle baking system (see 4.3);
b) Increased the thermal balance test time of the ladle baking system (see 4.4);
c) The heat balance calculation units have been changed (see 4.5, Chapter 9, 4.5, Chapter 9 of the.2016 edition);
d) The frequency of flue gas sampling and analysis has been changed (see 8.2.4.1, 8.2.4.1 of the.2016 edition);
e) The smoke volume test method has been changed (see 8.2.4.2, 8.2.4.2 of the.2016 edition);
f) Added the test content and methods for ladle (see 8.2.10);
g) The wind speed range of heat dissipation on the furnace surface has been changed (see 9.2.6, 9.2.6 of the.2016 edition);
h) Added the calculation method of heat loss through the ladle lining, outer shell and ladle cover (see 9.2.12);
i) The oxidation burn test method has been changed (see 8.2.3.3, Appendix D of the.2016 edition).
Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.
This document was proposed by the China Iron and Steel Association.
This document is under the jurisdiction of the National Technical Committee on Steel Standardization (SAC/TC183).
This document was drafted by. Shandong Iron and Steel Group Rizhao Co., Ltd., Metallurgical Industry Information Standards Research Institute, Yingkou Institute of Technology, Shandong Huimin
Technology Development Co., Ltd., Sinosteel Anshan Thermal Energy Research Institute Co., Ltd.
The main drafters of this document are. Cong Wei, Li Hongcui, Wang Jiangwei, Luan Caixia, Qiu Jinhui, Yang Xiuqing, Liu Jianwei, Chen Jian, Fan Tianjiao, Chen Qingjun,
Zhang Ruopeng, Wu Kangkang, Zhao Chunzhu, and Yu Jingyao.
The previous versions of the documents replaced by this document are as follows.
---GB/T 32974, first issued in.2016, this is the first revision;
---GB/T 32971, first issued in.2016.
Regenerative Industrial Furnaces in the Steel Industry
Thermal balance test and calculation method
1 Scope
This document specifies the heat balance test and calculation benchmarks, test object overview, recent
Periodic production situation, test preparation, test steps, test content and methods, and calculation methods.
This document is applicable to the heat balance test and
calculate.
2 Normative references
The contents of the following documents constitute essential clauses of this document through normative references in this document.
For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to
This document.
YB/T 4209 Technical Specification for Regenerative Combustion in the Iron and Steel Industry
YB/T 4773 Determination and calculation method of oxidation loss of steel billets
3 Terms and definitions
The terms and definitions defined in YB/T 4209 and YB/T 4773 apply to this document.
4 Thermal balance test and calculation benchmark
4.1 Reference temperature
The average ambient temperature is used, that is, the ambient temperature of the regenerative industrial furnace in the workshop 1m away from the furnace wall or 1m away from the ladle or ladle roaster.
Average ambient temperature.
4.2 Fuel calorific value
The received low calorific value of wet coal gas is adopted.
4.3 Thermal balance test range
According to the test requirements, the whole furnace (including heat storage recovery device) or (and) the furnace heat balance of the industrial furnace is tested and calculated.
The thermal balance test of the ladle baking system includes the baking machine, air pipeline, gas pipeline, exhaust pipe and the baked ladle.
4.4 Thermal balance test time
For industrial furnaces, continuous measurement is performed when the type and specification of the materials entering the furnace remain unchanged and the furnace operating conditions are stable.
The measurement should be completed within 8 hours, and the number of measurements should not be less than 2 times, each time for 1 hour. The measurement of temperature, pressure, flow rate and other parameters should be not less than 1 hour per hour.
4 times and then take the average.
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