GB 31335-2024 PDF English
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB 31335-2024 | English | 260 |
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Norm of the energy consumption per unit production of iron ore mining and dressing
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| GB 31335-2014 | English | 209 |
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The norm of the energy consumption per unit product of iron ore surface mining
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GB 31335-2024: Norm of the energy consumption per unit production of iron ore mining and dressing
---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GB31335-2024
GB
NATIONAL STANDARD OF THE
PEOPLE'S REPUBLIC OF CHINA
ICS 27.010
CCS F 01
Replacing GB 31335-2014, GB 31336-2014, GB 31337-2014
Norm of the energy consumption per unit production of iron
ore mining and dressing
Issued on: APRIL 29, 2024
Implemented on: MAY 1, 2025
Issued by. State Administration for Market Regulation;
Standardization Administration of PRC.
Table of Contents
Foreword... 3
1 Scope... 4
2 Normative references... 4
3 Terms and definitions... 4
4 Energy consumption allowance levels... 6
5 Technical requirements... 6
6 Statistical scope and calculation method... 7
Appendix A (Normative) Adjustment coefficients for iron ore surface mining. 11
Appendix B (Normative) Adjustment coefficients for iron ore underground
mining... 13
Appendix C (Normative) Adjustment coefficients for iron ore dressing... 15
Norm of the energy consumption per unit production of iron
ore mining and dressing
1 Scope
This document specifies the levels, technical requirements, statistical scope and
calculation methods for the allowance of energy source consumption (hereinafter
referred to as "energy consumption") per unit production of iron ore surface mining,
underground mining and dressing.
This document is applicable to the calculation and assessment of the energy
consumption per unit production of iron ore surface mining, underground mining and
dressing, as well as the energy consumption control of new construction, reconstruction
and expansion projects.
2 Normative references
The provisions of the following documents constitute the essential clauses of this
document through normative references in this text. Among them, for referenced
documents with dates, only the versions corresponding to the dates are applicable to
this document; for referenced documents without dates, the latest versions (including
all amendments) are applicable to this document.
GB/T 2589 General rules for calculation of the comprehensive energy consumption
GB/T 12723 General principles for establishing allowance of energy consumption
per unit throughput
3 Terms and definitions
The terms and definitions defined in GB/T 2589 and GB/T 12723 and the following
apply to this document.
3.1 comprehensive energy consumption per unit production of iron ore surface
mining
During the statistical period, the total amount of various energy actually consumed for
every ton of ore rock mined from iron ore surface mining.
3.2 comparable comprehensive energy consumption per unit production of iron
ore surface mining
In order to achieve the comparability of energy consumption of the same final product
in the same industry, the comprehensive energy consumption per unit production
calculated by correcting various factors that affect the comprehensive energy
consumption per unit production of iron ore surface mining.
3.3 comprehensive energy consumption per unit production of iron ore
underground mining
During the statistical period, the total amount of various energy actually consumed for
each ton of raw ore mined from iron ore underground mining.
3.4 comparable comprehensive energy consumption per unit production of iron
ore underground mining
In order to achieve the comparability of energy consumption of the same final product
in the same industry, the comprehensive energy consumption per unit production
calculated by correcting various factors that affect the comprehensive energy
consumption per unit production of iron ore underground mining.
3.5 comprehensive energy consumption per unit ore of iron ore dressing
During the statistical period, the total amount of various energy actually consumed for
each ton of raw ore processed by iron ore dressing.
3.6 comparable comprehensive energy consumption per unit ore of iron ore
dressing
In order to achieve the comparability of energy consumption of the same final product
in the same industry, the comprehensive energy consumption per unit production
calculated by correcting various factors that affect the comprehensive energy
consumption per unit production of iron ore dressing.
4 Energy consumption allowance levels
The allowance levels of energy consumption per unit production of iron ore mining and
dressing are shown in Table 1, among which Level 1 has the lowest energy consumption.
5 Technical requirements
5.1 Limit values of energy consumption per unit throughput
For existing projects, the limit values of comparable comprehensive energy
consumption per unit production of iron ore surface mining, limit values of comparable
comprehensive energy consumption per unit production of iron ore underground mining,
and limit values of comparable comprehensive energy consumption per unit ore of iron
ore dressing shall comply with Level 3 of the energy consumption allowance levels in
Table 1.
5.2 Access values of energy consumption per unit throughput
For new construction, reconstruction and expansion projects, the access values of
comparable comprehensive energy consumption per unit production of iron ore surface
mining, the access values of comparable comprehensive energy consumption per unit
production of iron ore underground mining and the access values of comparable
comprehensive energy consumption per unit ore of iron ore dressing shall comply with
Level 2 of the energy consumption allowance levels in Table 1.
6 Statistical scope and calculation method
6.1 Statistical scope
6.1.1 Statistical scope of comprehensive energy consumption of iron ore surface
mining
It includes the physical quantity of various energy consumed by the main production
systems of mining technology (including mining and striping, stope crushing,
transportation, soil discharge, water supply and drainage, production scheduling and
command systems, excluding waste rock processing), auxiliary production systems
(mechanical repair, auto repair, electrical repair, explosives storage, laboratory testing,
inspection, measurement, environmental protection, and power supply) and ancillary
production systems directly serving mining production (office buildings, canteens, and
bathrooms), and converted into standard coal in accordance with the provisions of GB/T
2589.
6.1.2 Statistical scope of comprehensive energy consumption of iron ore
underground mining
It includes the physical quantity of various energy sources consumed by the main
production systems of the mining technology (including mining, underground crushing,
transportation, lifting, air compression, ventilation, filling, water supply and drainage,
lighting, production scheduling and command systems, excluding the clinker
production line built for filling), auxiliary production systems (mechanical repair, auto
repair, electrical repair, explosives storage, laboratory testing, inspection, measurement,
environmental protection, and power supply) and ancillary production systems directly
serving mining production (office buildings, canteens, and bathrooms), and converted
into standard coal in accordance with the provisions of GB/T 2589.
6.1.3 Statistical scope of comprehensive energy consumption of iron ore dressing
It includes the entire process from the entry of raw ore into the plant to the entry of
qualified iron ore concentrate into the warehouse (pond) and the entry of tailings into
the storage (yard); it includes the physical quantity of various energy consumed by the
main production systems of mineral dressing (pre-selection, crushing, screening,
grinding, grading, separation, dehydration, tailings disposal, production scheduling and
command system, excluding super iron ore concentrate processing), auxiliary
production systems (mechanical repair, auto repair, electrical repair, power supply,
water supply, water treatment, heating, testing, inspection, measurement,
environmental protection, power supply, and chemical supply) and the auxiliary
production systems directly serving production (office buildings, canteens, and
bathrooms), and converted into standard coal in accordance with the provisions of GB/T
2589.
6.2 Calculation method
6.2.1 Calculation of comprehensive energy consumption per unit production of
iron ore mining and dressing
The comprehensive energy consumption per unit production of iron ore surface mining,
iron ore underground mining and iron ore dressing is calculated according to formula
(1).
Where
e -- comprehensive energy consumption per unit production of iron ore surface
mining, underground mining or dressing, in kilograms of standard coal per ton
(kgce/t);
E -- the total amount of various energy actually consumed in iron ore surface
mining, underground mining or dressing during the statistical period,
converted into standard coal equivalent, in kilograms of standard coal (kgce);
P -- the amount of ore rock mined from surface mining, the amount of raw ore
mined from underground mining, or the amount of raw ore processed by iron
ore dressing during the statistical period, in tons (t).
6.2.2 Calculation of comparable comprehensive energy consumption per unit
production of iron ore mining and dressing
The comparable comprehensive energy consumption per unit production of iron ore
surface mining, the comparable comprehensive energy consumption per unit production
of iron ore underground mining, and the comparable comprehensive energy
consumption per unit production of iron ore dressing (excluding roasting and
concentration) are calculated according to formula (2).
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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