YS/T 1543-2022 English PDF (YST1543-2022)

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YS/T 1543-2022: The Norm of Energy Consumption per Unit Production of Lithium
YS/T 1543-2022
YS
NONFERROUS INDUSTRY STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
ICS 77.150.99
CCS H 01
The Norm of Energy Consumption per Unit Production of
Lithium
ISSUED ON: SEPTEMBER 30, 2022
IMPLEMENTED ON: APRIL 1, 2023
Issued by: Ministry of Industry and Information Technology of the People’s
Republic of China
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative References ... 4
3 Terms and Definitions ... 4
4 Requirements ... 5
5 Statistical Range, Calculation Method and Calculation Range ... 6
6 Energy Saving Management and Measures ... 13
Appendix A (Informative) Current Reference Standard Coal Conversion Coefficients
for Commonly Used Energy Types ... 14
Appendix B (Informative) Energy Equivalent Reference Values of Commonly Used
Energy-Consuming Medium ... 15
The Norm of Energy Consumption per Unit Production of
Lithium
1 Scope
This Document stipulates the requirements, statistical range, calculation range, calculation
method, and energy-saving management and measures for the norm of energy consumption per
unit production of lithium in lithium smelting enterprises.
This Document is applicable to the calculation and assessment of energy consumption of
products of lithium smelting enterprises, as well as the energy consumption control of new
projects; and is also applicable to the assessment of energy consumption of enterprise upgraded
product processes.
2 Normative References
The provisions in following documents become the essential provisions of this Document
through reference in 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) is applicable to this Document.
GB/T 2589 General principles for calculation of total production energy consumption
GB/T 4369 Lithium
GB/T 12723 General principles for establishing allowance of energy consumption per unit
throughput
GB 17167 General principle for equipping and managing of the measuring instrument of
energy in organization of energy using
3 Terms and Definitions
For the purposes of this Document, the terms and definitions given in GB/T 2589 and GB/T
12732 and the following apply.
3.1 Unit energy consumption in working procedure
All types of energy consumed shall not be recalculated or omitted. When there is a supply and
demand relationship, the input and output sides shall be consistent in the calculated values. The
energy consumption when the equipment is shut down for maintenance shall also be included
in the calculation, and be evenly allocated every month according to the operation cycle after
the maintenance.
The waste heat recovered by the enterprise does not belong to purchased energy. When
calculating product working procedure and technology energy consumption, recalculation with
purchased energy shall be avoided from the purchased energy. The energy used by the waste
heat utilization device is included in the product working procedure and technology energy
consumption. The portion of recovered energy for self-use shall be included in the object
consumption of the self-use working procedure. When it is transferred to other working
procedure, it shall be included in the normal consumption in the used working procedure. The
recovered energy after being converted into standard coal shall be deducted from the waste heat
recovery working procedure and technology energy consumption. If it contains energy
consumption indicators for recovering waste heat, it shall be marked with "including waste heat
power generation" or similar words.
5.1.3 Measurement of object energy amounts
The measurement of object energy amounts shall comply with the provisions of the Law on
Metrology of the People's Republic of China and GB 17167.
5.1.4 Measurement units of various energies
The measurement units of various energies are as follows:
a) The units of enterprise production energy consumption, product technology energy
consumption, and product integrate energy consumption: kgce, tce (kilograms of
standard coal, tons of standard coal);
b) Units of coal, coke, and heavy oil: kg, t, 104 t (kg, ton, 10,000 tons);
c) Unit of electricity: kW•h, 104 kW•h (kilowatt hour, ten thousand kilowatt hours);
d) Units of gas, compressed air, and oxygen: m3, 104 m3 (cubic meters, 10,000 cubic meters);
e) Units of water: t, 104 t (tons, 10,000 tons).
5.1.5 Methods of various energy conversion to standard coal
The energy with a low (bit) calorific value equal to 29.3076 MJ (megajoule) is called 1 kg of
standard coal.
For externally purchased fuel energy, the actual measured low calorific value or the actual
measured value provided by the supplier can be used as the basis for calculation; or it can be
converted by the conversion coefficient of the national statistics department, see Appendix A.
Secondary energy and energy-consuming medium are converted according to the
corresponding energy equivalent value. When an enterprise converts energy to self-production,
the amount of standard coal shall be converted according to the actual object amount of energy
input. When it is exported and supplied by a centralized production organization, its energy
equivalent values shall be stipulated by the competent department. When it is purchased and
exported, its energy equivalent values shall be the same. When energy equivalent values are not
provided, it can be converted according to the conversion coefficient of the national statistics
department, see Appendix B.
5.1.6 Determination of product output per unit product energy consumption
5.1.6.1 The annual data of energy consumption per unit product of lithium smelting enterprises
is calculated by dividing the sum of energy consumption in each month by the weighted average
of the output in each month. Products are divided into crude metallic lithium, industrial-level
metallic lithium, and battery-level metallic lithium. Crude metallic lithium refers to metallic
lithium directly produced by electrolysis of lithium chloride. Among the designations specified
in GB/T 4369, Li-4, Li-5, and Li-6 are industrial-level metallic lithium. Li-1, Li-2, and Li-3 are
battery-level metallic lithium.
5.1.6.2 To calculate the output of qualified crude metallic lithium products, the output of
qualified crude metallic lithium within the statistical period of the unified plan shall be used.
5.1.6.3 To calculate the output of qualified industrial-level metallic lithium products, the output
of qualified industrial-level metallic lithium products within the statistical period of the unified
plan shall be used.
5.1.6.4 To calculate the output of qualified battery-level metallic lithium products, the output
of qualified battery-level metallic lithium products within the statistical period of the unified
plan shall be used.
5.1.7 Others
The energy consumption of indirect auxiliary and ancillary production systems and the loss of
energy and energy-consuming medium in the enterprise's internal storage, conversion,
distribution, supply and export, that is, indirect integrate energy consumption, shall be allocated
to each product according to the percentage of energy consumption of each product technology
in the energy consumption of enterprise's production technology.
The energy consumption of the annual equipment overhaul shall be included in the product
technology energy consumption, and evenly distributed to ea...