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| Standard ID | GB 21341-2022 (GB21341-2022) | | Description (Translated English) | The norm of energy consumption per unit production of ferroalloy | | Sector / Industry | National Standard | | Classification of Chinese Standard | F01 | | Classification of International Standard | 27.010 | | Word Count Estimation | 10,169 | | Date of Issue | 2022-12-29 | | Date of Implementation | 2024-01-01 | | Older Standard (superseded by this standard) | GB 21341-2017 | | Administrative Organization | National Standardization Management Committee | | Proposing organization | State Administration for Market Regulation, National Standardization Management Committee | | Standard ID | GB 21341-2017 (GB21341-2017) | | Description (Translated English) | The norm of energy consumption per unit product of ferroalloy | | Sector / Industry | National Standard | | Classification of Chinese Standard | F01 | | Classification of International Standard | 27.010 | | Word Count Estimation | 8,881 | | Date of Issue | 2017-11-01 | | Date of Implementation | 2018-11-01 | | Older Standard (superseded by this standard) | GB 21341-2008 | | Drafting Organization | China Ferroalloy Industry Association, Iron and Steel Research Institute | | Administrative Organization | China National Standardization Administration | | Regulation (derived from) | National Standard Announcement 2017 No. 29 | | Proposing organization | National Development and Reform Commission Resource Conservation and Environmental Protection Division, Ministry of Industry and Information Technology Department of Energy Saving and Comprehensive Utilization | | Issuing agency(ies) | People's Republic of China General Administration of Quality Supervision, Inspection and Quarantine, China National Standardization Administration | | Standard ID | GB 21341-2008 (GB21341-2008) | | Description (Translated English) | The norm of energy consumption per unit product of ferroalloy | | Sector / Industry | National Standard | | Classification of Chinese Standard | F01 | | Classification of International Standard | 27.010 | | Word Count Estimation | 8,831 | | Date of Issue | 2008-01-09 | | Date of Implementation | 2008-06-01 | | Quoted Standard | GB/T 2272; GB/T 3795; GB/T 4008; GB/T 5683; GB 17167 | | Drafting Organization | China Steel Industry Association | | Administrative Organization | National Energy Foundation and Management Standardization Technical Committee | | Regulation (derived from) | Announcement of Newly Approved National Standards No. 1, 2008 (No. 114 overall) | | Proposing organization | National Development and Reform Commission Resource Conservation and Environmental Protection; National Standardization Management Committee | | Issuing agency(ies) | Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China; Standardization Administration of China | | Summary | This Chinese standard specifies the ferroalloy energy consumption per unit of product technical requirements, statistical coverage and calculation methods, energy management and measures. This standard applies to reduction furnace (submerged arc furnace) production of ferrosilicon, carbon ferromanganese (furnace ferromanganese), manganese -silicon alloy, high-carbon ferrochrome and ferromanganese blast furnace (high-carbon ferromanganese) alloy 5 specifications of bulk products unit energy consumption limit calculation, assessment, and control the energy consumption of new equipment. Other ferroalloy products available for implementation. |
GB 21341-2022
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 27.010
CCS F 01
Replacing GB 21341-2017
The Norm of Energy Consumption per Unit Production of
Ferroalloy
ISSUED ON: DECEMBER 29, 2022
IMPLEMENTED ON: JANUARY 1, 2024
Issued by: State Administration for Market Regulation;
Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative References ... 4
3 Terms and Definitions ... 5
4 Levels of the Norm of Energy Consumption ... 5
5 Technical Requirements ... 7
6 Statistical Scopes and Calculation Methods ... 7
Appendix A (informative) Standard Coal Conversion Reference Coefficients of Various
Energy Sources ... 10
Appendix B (normative) Table of Benchmark Composition of Ferroalloy Products .. 11
The Norm of Energy Consumption per Unit Production of
Ferroalloy
1 Scope
This document specifies the levels, technical requirements, statistical scopes and calculation
methods for the norm of energy consumption per unit product of ferroalloy (hereinafter referred
to as energy consumption).
This document is applicable to the calculation and assessment of energy consumption per unit
product of 9 varieties: ferrosilicon produced by ferroalloy submerged arc furnaces, high carbon
ferromanganese produced by electric furnaces (limited to high carbon ferromanganese
produced through the flux-free smelting process), manganese-silicon alloy, low carbon
ferromanganese-silicon, high carbon ferrochromium and charge ferrochromium, and micro-
carbon ferromanganese and medium (low) carbon ferrochromium produced by electric
ferroalloy refining furnaces, and blast furnace ferromanganese produced by ferroalloy blast
furnace, as well as the energy consumption control of new construction, renovation and
extension projects.
2 Normative References
The contents of the following documents constitute indispensable clauses of this document
through the normative references in the text. In terms of references with a specified date, only
versions with a specified date are applicable to this document. In terms of references without a
specified date, the latest version (including all the modifications) is applicable to this document.
GB/T 2272 Ferrosilicon
GB/T 2589 General Rules for Calculation of the Comprehensive Energy Consumption
GB/T 3795 Ferromanganese
GB/T 4008 Ferromanganese-silicon
GB/T 5683 Ferrochromium
GB/T 12723 General Principles of Stipulation of Energy Consumption Norm for Unit Product
GB/T 14984.1 Ferroalloys - Vocabulary - Part 1: Materials
3 Terms and Definitions
The terms and definitions defined in GB/T 12723, and the following terms and definitions are
applicable to this document.
3.1 comprehensive energy consumption per unit product of ferroalloy
Comprehensive energy consumption per unit product of ferroalloy refers to the amount of
various energy sources consumed by ferroalloy enterprises to produce 1 benchmark ton
(converted in accordance with the benchmark composition of the main elements) of qualified
ferroalloy products during the reporting period.
3.2 smelting electricity consumption per unit product of ferroalloy
Smelting electricity consumption per unit product of ferroalloy refers to the electricity
consumption in the smelting process by ferroalloy enterprises to produce 1 benchmark ton
(converted in accordance with the benchmark composition of the main elements) of qualified
ferroalloy products during the reporting period.
3.3 coke consumption per unit product of ferroalloy
Coke consumption per unit product of ferroalloy refers to the amount of coke (dry tons)
consumed by ferroalloy blast furnace production enterprises to produce 1 benchmark ton
(converted in accordance with the benchmark composition of the main elements) of qualified
ferroalloy products during the reporting period.
3.4 low carbon ferromanganese-silicon
Low carbon ferromanganese-silicon refers to ferromanganese-silicon whose carbon content is
not greater than 0.3%.
3.5 charge ferrochromium
Charge ferrochromium refers to ferrochromium whose chromium content is 45% ~ 52% and
carbon content is below 10%.
4 Levels of the Norm of Energy Consumption
The indicators of the norm of energy consumption per unit product of ferroalloy production
enterprises include smelting electricity consumption per unit product of ferroalloy, coke
consumption per unit product of ferroalloy and comprehensive energy consumption per unit
product of ferroalloy. The levels of the norm of energy consumption are shown in Table 1 and
Table 2, in which, Level-1 represents the lowest energy consumption.
5 Technical Requirements
5.1 Limit Values of Energy Consumption per Unit Product of Existing Ferroalloy
Production Enterprises
The indicators of the limit values of energy consumption per unit product of existing ferroalloy
production enterprises include smelting electricity consumption per unit product, coke
consumption per unit product and comprehensive energy consumption per unit product. The
limit values shall be not greater than the Level-3 energy consumption indicators in Table 1 and
Table 2.
5.2 Access Values of Energy Consumption per Unit Product of Newly Constructed,
Reconstructed and Extended Ferroalloy Production Enterprises
The indicators of the access values of energy consumption per unit product of newly constructed,
reconstructed and extended ferroalloy production enterprises include smelting electricity
consumption per unit product, coke consumption per unit product and comprehensive energy
consumption per unit product. The limit values shall be not greater than the Level-2 energy
consumption indicators in Table 1 and Table 2.
6 Statistical Scopes and Calculation Methods
6.1 Statistical Scope and Valuing Principle of Energy Conversion Coefficient
6.1.1 Statistical scope
6.1.1.1 Statistical scope of comprehensive energy consumption per unit product of
ferroalloy
The comprehensive energy consumption of electric furnace ferroalloy production enterprises
shall include the smelting electrical energy consumption for heating the charge and maintaining
normal furnace conditions; power energy consumption in the production and processing process
(including raw material preparation, transportation, alloy pouring, finishing, material and alloy
transportation, dynamic electricity for auxiliary facilities, and lighting electricity, etc.);
carbonaceous reducing agents (coke, under-sieve coke of ironmaking blast furnace, small
particle coke for submerged arc furnace, and small particle semi-coke, etc.) consumption
required for reducing ore, deducting the amount of secondary energy (such as: recovered gas
and waste heat, etc.) that is recovered and externally supplied.
6.1.1.2 Statistical scope of smelting electricity consumption per unit product of ferroalloy
The smelting electricity consumption of ferroalloy products shall include electricity
consumption for smelting and furnace-washing during the smelting of products, excluding
electricity of the oven during production (the electricity of the oven refers to the electricity
consumption to increase the hearth temperature by newly opened ferroalloy submerged arc
......
GB 21341-2017
GB
NATIONAL STANDARD OF THE
PEOPLE’S 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’s 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.
......
GB 21341-2008
The norm of energy consumption per unit product of ferroalloy
ICS 27.010
F01
National Standards of People's Republic of China
Ferroalloy energy consumption per unit product
Posted 2008-01-09
2008-06-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
4.1 and 4.2 of this standard is mandatory, the rest are recommended.
Appendix A of this standard is an informative annex.
This standard by the National Development and Reform Commission Resource Conservation and Environmental Protection, the National Standardization Management Committee an industry standard
put forward.
This standard by the National Standardization Technical Committee for Energy and Management.
This standard drafting units. China Iron and Steel Association, Steel Research Institute.
The main drafters of this standard. Yang Zhizhong, Cecilia LW Chan, Li Xiu-Ping, ZHANG Chun-xia, Rand, Huang guide, born Wu Rong, Wang Xiaolan.
Ferroalloy energy consumption per unit product
1 Scope
This standard specifies the ferroalloy unit product energy consumption (hereinafter referred to as energy) technical requirements limit, the scope of statistics and calculation methods section
Manage and measure.
This standard applies to the reduction furnace (submerged arc furnace) production of ferrosilicon, high carbon ferromanganese (FeMn furnace), silicon manganese alloys, high-carbon ferrochrome and blast furnace raw
Energy produced ferromanganese (HC FeMn) alloy five specifications of bulk products unit energy consumption quota calculation, assessment, as well as new equipment
control. Other ferroalloy product implementation.
2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
GB/T 2272 ferrosilicon
GB/T 3795 ferromanganese
GB/T 4008 MANGANESE
GB/T 5683 ferrochrome
GB 17167 energy use per unit of energy measuring instruments and General Manager
3 Terms and Definitions
The following terms and definitions apply to this standard.
3.1
Ferroalloy enterprises in a variety of energy per unit of product produced during the reporting period (1 standard t) qualified ferroalloy consumption, recycling and deduction step
After the external supply of energy of all kinds of energy equivalent to the total amount of coal actually consumed.
3.2
During the reporting period, ferroalloy smelting process per unit of production (1 ton of standard) qualified power ferroalloy smelting process does not include a
Material handling, iron, casting, finishing processes such as the consumption of electricity.
4. Technical Requirements
4.1 existing ferroalloy production enterprises unit energy consumption quota limit
Existing ferroalloy production enterprises unit energy consumption per unit of product limit indicators, including smelting power consumption and comprehensive energy consumption per unit of product, its value should be
Comply with the requirements of Table 1.
Table 1 existing ferroalloy production enterprises unit energy consumption quota limit
Variety alloy ferrosilicon furnace ferromanganese silicon manganese alloy high-carbon ferrochrome ferromanganese blast furnace
Specifications FeSi75-A FeMn68C7.0 FeMn64Si18 FeCr67C6.0 FeMn68C7.0
Implementation of national standards GB/T 2272 GB/T 3795 GB/T 4008 GB/T 5683 GB/T 3795
Table 1 (continued)
Variety alloy ferrosilicon furnace ferromanganese silicon manganese alloy high-carbon ferrochrome ferromanganese blast furnace
Standard components Si75 Mn65 Mn + Si82 Cr50 Mn65
Smelting power consumption per unit of product
Limit limit/(kW · h/t)
≤8800 ≤2700 ≤4400 ≤3500 coke 1350kg/t
Comprehensive energy consumption per unit of product quota limit
[To power when the magnitude 0.1229kgce /
(KW · h) meter]/(kgce/t)
≤1980 ≤790 ≤1030 ≤900
≤1250
Comprehensive energy consumption per unit of product quota limit
[Electrically equivalent value 0.404kgce /
(KW · h) meter]/(kgce/t)
≤4600 ≤1610 ≤2380 ≤1950
Into the furnace ore grade - Mn38% Mn34% Cr2O340% Mn37%
Into the furnace ore grade increased by 1% reduction
Power consumption can be reduced limit values rise
High value/(kW · h/t)
- ≤60 ≤100
≤80
Ferrochrome ratio ≥2.2
Coke 30kg/t
4.2 New ferroalloy production enterprises access unit product energy consumption limits values
New and renovation and expansion of ferroalloy ferroalloy production equipment, including mineral hot furnace using low HOOD semi-enclosed or fully enclosed, capacity of not less than
Key poverty-stricken countries in the region to determine the 25MV · A (Midwest has an independent run small hydropower and mineral resources of a single mineral hot furnace
Capacity of not less than 12.5MV · A); and low carbon ferromanganese low carbon ferrochrome and other refining furnace, the furnace can be selected, according to the capacity of a product characteristics
Generally not less than 3MV · A; ferromanganese blast furnace volume of not less than 300m3.
When new or renovation and expansion of ferroalloy production enterprises, ferroalloy unit product energy consumption limits access for value indicators, including smelting power consumption per unit of product and
Comprehensive energy consumption per unit of product, its value should be in accordance with Table 2.
Table 2 New ferroalloy production enterprises access unit product energy consumption limits values
Variety alloy ferrosilicon furnace ferromanganese silicon manganese alloy high-carbon ferrochrome ferromanganese blast furnace
Specifications FeSi75-A FeMn68C7.0 FeMn64Si18 FeCr67C6.0 FeMn68C7.0
Implementation of national standards GB/T 2272 GB/T 3795 GB/T 4008 GB/T 5683 GB/T 3795
Standard components Si75 Mn65 Mn + Si82 Cr50 Mn65
Smelting power consumption per unit of product value limit access /
(KW · h/t)
≤8500 ≤2600 ≤4200 ≤3200 coke 1320kg/t
Limit access to comprehensive energy consumption per unit of product value
[To power when the magnitude 0.1229kgce /
(KW · h) meter]/(kgce/t)
≤1910 ≤710 ≤990 ≤810
≤1220
Limit access to comprehensive energy consumption per unit of product value
[Electrically equivalent value 0.404kgce /
(KW · h) meter]/(kgce/t)
≤4440 ≤1500 ≤2260 ≤1780
Into the furnace ore grade - Mn38% Mn34% Cr2O340% Mn37%
Into the furnace ore grade increased by 1% reduction
Power consumption can be reduced limit values rise
High value/(kW · h/t)
- ≤60 ≤100
≤80
Ferrochrome ratio ≥2.2
Coke 30kg/t
4.3 ferroalloy production enterprises advanced unit product energy consumption limits values
Ferroalloy production enterprises or processes, in ferroalloy production process should be through energy saving technological transformation and strengthening management, ferroalloy unit
Advanced product energy consumption limits values in accordance with Table 3.
Table 3 ferroalloy unit product energy consumption limits for advanced value
Variety alloy ferrosilicon furnace ferromanganese silicon manganese alloy high-carbon ferrochrome ferromanganese blast furnace
Specifications FeSi75-A FeMn68C7.0 FeMn64Si18 FeCr67C6.0 FeMn68C7.0
Implementation of national standards GB/T 2272 GB/T 3795 GB/T 4008 GB/T 5683 GB/T 3795
Standard components Si75 Mn65 Mn + Si82 Cr50 Mn65
Smelting power consumption per unit of product value advanced limit /
(KW · h/t)
≤8300 ≤2300 ≤4000 ≤2800 coke 1280kg/t
Comprehensive energy consumption per unit of product value advanced limit
[To power when the magnitude 0.1229kgce /
(KW · h) meter]/(kgce/t)
≤1850 ≤670 ≤950 ≤740
≤1180
Comprehensive energy consumption per unit of product value advanced limit
[Electrically equivalent value 0.404kgce /
(KW · h) meter]/(kgce/t)
≤4320 ≤1360 ≤2150 ≤1600
Into the furnace ore grade - Mn38% Mn34% Cr2O340% Mn37%
Into the furnace ore grade increased by 1% reduction
Power consumption can be reduced limit values rise
High value/(kW · h/t)
- ≤60 ≤100
≤80
Ferrochrome ratio ≥2.2
Coke 30kg/t
4.4 ferroalloy production of primary energy recovery amount advanced value
Ferroalloy production process, should be equipped with advanced energy-saving equipment, to maximize the recovery of energy generated by the recovered energy reached
Advanced predetermined value.
a) a closed furnace gas effective recovery rate ≥80%;
b) ferromanganese blast furnace gas recovery rate ≥96%.
5 statistical coverage and calculation methods
5.1 Scope and Statistical Energy Conversion Coefficient Value Principle
5.1.1 Range Statistics
a) comprehensive energy consumption per unit of product ferroalloy statistical range
Ferroalloy submerged arc furnace production enterprises should include energy consumption for heating furnace feed, maintain normal smelting furnace conditions consumed electrical energy consumption, but also for
Of raw ore carbonaceous reducing agent (D metallurgical coke or semi-coke gas coal coke) consumption of raw materials and the production process of preparation, transportation, smelting
Refining, alloy casting, finishing materials and alloys transportation and power energy consumption, recycling and deductions for foreign secondary energy (eg, gas, etc.) amount.
Product production to finishing after the storage requirements of the standard components of the finished meter.
b) ferroalloy smelting power consumption per unit of product range statistics
Smelting power consumption statistics to value Metering transformer high side prevail. Ferroalloy smelting process of consumption, not including drying time of production
Electric stove, electric stove wash, electric power, lighting and electricity.
Product production to finishing after the storage requirements of the standard components of the finished meter.
5.1.2 Coefficient of energy conversion principles
Calorific value of energy to various enterprises in the reporting period measured thermal values prevail. No actual conditions in Appendix A variety of standard coal off
Reference coefficients.
5.2 Calculation Method
Comprehensive energy consumption per unit of product 5.2.1 Ferroalloy
Ferroalloy comprehensive energy consumption per unit of product according to formula (1).
ETHJ =
PTHJ
(1)
Where.
ETHJ --- ferroalloy products unit comprehensive energy consumption in kilograms of standard coal per ton of standard (kgce/t);
PTHJ --- qualified ferroalloy output unit is a standard t (t).
5.2.2 ferroalloy smelting power consumption per unit of product
Ferroalloy smelting power consumption per unit of product according to formula (2).
DTHJ =
PTHJ
(2)
Where.
DTHJ --- ferroalloy smelting power consumption per unit of product, in units of kilowatt-hours per ton (kW · h/t);
PTHJ --- qualified ferroalloy output unit is a standard t (t).
6 and energy management measures
6.1 ferroalloy production enterprises should regularly assess the situation of energy consumption, and the assessment indicators break down into the grass-roots departments, the establishment of energy
Liability regime.
6.2 enterprises should be required to establish energy consumption statistics system, establish energy consumption calculation and assessment of the results of paper files, and files controlled management.
6.3 energy enterprises should be equipped with measuring instruments according to the requirements of GB 17167 and the establishment of energy measurement management system.
6.4 new or renovation and expansion of chromium, manganese ferroalloy submerged arc furnace, the furnace should be enclosed construction principle. Gas produced should be recovered merging
Rationale use.
Appendix A
(Informative)
The main reference of standard coal energy off coefficient
The average calorific energy name off of standard coal coefficient
Anthracite (wet) 25090kJ/kg 0.8571kgce/kg
Steam coal (wet) 20908kJ/kg 0.7143kgce/kg
Coke (coke dry whole)
(Ash content 13.5%)
28435kJ/kg 0.9714kgce/kg
100m3 ~ 255m3 ferromanganese blast furnace coke
(Blast furnace coke under the screen)
0.95 × 28435kJ/kg 0.95 × 0.9740kgce/kg
Submerged arc furnace with jodiin 0.90 × 28435kJ/kg 0.90 × 0.9714kgce/kg
Ferrosilicon production of semi-coke jodiin 0.75 × 28435kJ/kg 0.75 × 0.9714kgce/kg
Ferromanganese blast furnace gas 4100kJ/m3 ~ 4300kJ/m3 0.1401kgce/m3 ~ 0.1470kgce/m3
Gas furnace closed 4000kJ/m3 ~ 5000kJ/m3 0.1367kgce/m3 ~ 0.1709kgce/m3
Fuel 41816kJ/kg 1.4286kgce/kg
Electricity (equivalent value) 3600kJ/(kW · h) 0.1229kgce/(kW · h)
Electricity (equal value) - 0.4040kgce/(kW · h)
......
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