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GB 21341-2017 English PDF (GB21341-2017)

GB 21341-2017 English PDF (GB21341-2017)

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GB 21341-2017: The norm of energy consumption per unit product of ferroalloy

This Standard is applicable to the calculation and audit of per unit energy consumption for the following 5 kinds of products such as ferrosilicon produced in the ferroalloy ore furnace, high-carbon ferromanganese in electro-furnace (only limited to the high-carbon ferromanganese adopting the smelting process of flux-free method or less flux method), manganese-silicon alloy, high-carbon ferrochrome and ferromanganese in the blast furnace produced by ferroalloy blast furnace, as well as the energy consumption control for the newly-built or re-built projects.
GB 21341-2017
GB
NATIONAL STANDARD OF THE
PEOPLE REPUBLIC OF CHINA
ICS 27.010
F 01
Replacing GB 21341-2008
The Norm of Energy Consumption
per Unit Product of Ferroalloy
ISSUED ON. NOVEMBER 01, 2017
IMPLEMENTED ON. NOVEMBER 01, 2018
Issued by. General Administration of Quality Supervision, Inspection and Quarantine;
Standardization Administration of PRC.
Table of Contents
Foreword . 3
1 Scope .. 5
2 Normative References . 5
3 Terms and Definitions .. 5
4 Energy Consumption Limit Level .. 6
5 Technical Requirements .. 7
6 Statistical Range and Calculation Method .. 7
Appendix A (Informative) Reference Coefficient for Each Energy Source
Converted into Standard Coal . 11
Appendix B (Normative) Ferroalloy Product Standard Composition List .. 12 Foreword
This Standard was drafted as per the rules specified in GB/T 1.1-2009.
This Standard replaced GB 21341-2008 The Norm of Energy Consumption per Unit Product of Ferroalloy. Compared with GB 21341-2008, this Standard has the major technical changes as follows besides the editorial modifications.
--- Add the energy consumption limit level;
--- Delete the advanced value of energy consumption and energy conservation management and measures;
--- Retain the energy consumption limit index of power equivalent value under the conversion factor, which is revised; cancel the energy consumption limit index of power equal value under conversion factor;
--- Supplement and improve the ?€?electro-furnace ferromanganese?€? by ?€?electro- furnace high-carbon ferromanganese?€?; define it as the smelting process of flux- free method (or less flux method);
--- Supplement and improve the definitions of ?€?comprehensive energy consumption per unit product of ferroalloy?€? and ?€?smelting electricity consumption per unit product of ferroalloy?€?;
--- Add the definition, statistical range and calculation formula of ?€?coke consumption per unit product of ferroalloy?€?;
--- Modify the calculation formula of ?€?smelting electricity consumption per unit product of ferroalloy?€?;
--- Modify the capacity requirements for the newly-reconstructed ferroalloy ore furnace, and the terms of refining furnace;
--- Supplement and improve the ?€?statistical range?€?;
--- Propose the value-taking principle for the energy conversion coefficient and modify the corresponding recommended value.
This Standard was proposed by Resource Conservation and Environment Protection Department of National Development and Reform Commission, and MIIT?€?s
Department of Energy Conservation and Comprehensive Utilization.
This Standard shall be under the jurisdiction of Standardization Administration of the PEOPLE Republic of China.
The Norm of Energy Consumption
per Unit Product of Ferroalloy
1 Scope
This Standard specifies the terms and definitions, technical requirements, statistical range and calculation method of the norm of energy consumption per unit product of ferroalloy (hereinafter referred to as energy consumption).
This Standard is applicable to the calculation and audit of per unit energy consumption for the following 5 kinds of products such as ferrosilicon produced in the ferroalloy ore furnace, high-carbon ferromanganese in electro-furnace (only limited to the high- carbon ferromanganese adopting the smelting process of flux-free method or less flux method), manganese-silicon alloy, high-carbon ferrochrome and ferromanganese in the blast furnace produced by ferroalloy blast furnace, as well as the energy consumption control for the newly-built or re-built projects.
2 Normative References
The following documents are essential to the application of this document. For the dated documents, only the versions with the dates indicated are applicable to this document; for the undated documents, only the latest version (including all the amendments) are applicable to this document.
GB/T 12723 General Principles of Stipulation of Energy Consumption Norm for Unit Product
3 Terms and Definitions
The following terms and definitions and those ones stipulated in GB/T 12723 are applicable to this document.
3.1 Comprehensive energy consumption per unit product of ferroalloy
During the reporting period, various energies that are consumed by the ferroalloy enterprises to produce 1 standard ton (convert as per the standard composition of the major elements) of qualified ferroalloy products.
6.1.1 Statistical range
6.1.1.1 Statistical range for comprehensive energy consumption per unit product of ferroalloy
The comprehensive energy consumption for enterprise of ferroalloy produced in ore heat furnace shall include smelting electricity consumption for heating the furnace materials to maintain the normal furnace conditions (including smelting electricity, furnace-baking electricity, furnace-washing electricity); power energy consumption during the producing and machining processes (including raw material preparation, transportation, smelting, alloy casting, finishing, transportation of material and alloy, power electricity and illumination electricity for auxiliary facilities, etc.); the consumption of carbonaceous reducing agent (small grained metallurgical coke or small grained blue coal) required for the reduction of ore; the amount of secondary energy (such as recycled coal gas, waste heat, etc.) for recycling and external supply that shall be deducted.
6.1.1.2 Statistical range for smelting electricity consumption per unit product of ferroalloy
The smelting electricity consumption of ferroalloy product shall include smelting electricity and furnace washing electricity consumption during the smelting process; however, it excludes the furnace-baking electricity, power electricity, illumination electricity, etc. during the producing process; it shall be subjected to the measuring value of the electricity meter on the high-voltage side of the transformer in the ore heat furnace.
6.1.1.3 Statistical range for coke consumption per unit product of ferroalloy The coke consumption of ferroalloy product shall include coke consumption during the product smelting process; it excludes the coke consumption in the living facilities such as canteens, bathrooms, etc.
6.1.1.4 Ferroalloy product production statistics
The ferroalloy product production is calculated on the basis of the amounts of finished products in the warehouse after such product?€?s standard compositions of the major elements are converted and finished.
6.1.2 Value-taking principle for energy conversion coefficient
The heat value of various energy sources shall be subjected to the actually measured heat value during the reporting period of the enterprise. If there are no actual measurement conditions, please refer to Appendix A for the recommended value of standard coal coefficient converted by various energy resources.

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