GB/T 26281-2021Methods for the calculation of heat balance, heat efficiency and comprehensive energy consumption of cement rotary kiln (English PDF)

1 Scope

This document specifies the calculation of heat balance, thermal efficiency and comprehensive energy consumption of rotary kilns (including preheating, firing and cooling systems) for the production of cement clinker:

Calculation method, including calculation basis and calculation benchmark, calculation of heat balance and thermal efficiency of rotary kiln system, calculation of heat balance and thermal efficiency of cooler, etc:

content:

This document is applicable to the heat balance, thermal efficiency and

Calculation of comprehensive energy consumption for clinker firing: Heat balance, thermal efficiency and comprehensive energy of clinker burning when waste is used as alternative raw material and alternative fuel

The calculation method of consumption can refer to this document:

2 Normative references

The contents of the following documents constitute essential provisions of this document through normative references in the text: Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document:

GB/T 213 Determination method of calorific value of coal

GB/T 2587 General rules for energy balance of energy-using equipment

GB/T 2589 General Principles of Comprehensive Energy Consumption Calculation

GB 16780 Limit of energy consumption per unit product of cement

GB 17167 General Rules for the Equipping and Management of Energy Measuring Instruments for Energy Consumption Units

GB/T 26282 Determination method of heat balance of cement rotary kiln

GB/T 27977 Electric energy efficiency test and calculation method for cement production

GB/T 33650 Technical requirements for energy consumption evaluation in cement manufacturing

GB/T 33652 Technical Specifications for Energy Consumption Testing of Cement Manufacturing

GB/T 35461 Requirements for the equipment and management of energy measuring instruments in cement production enterprises

3 Terms and Definitions

The following terms and definitions apply to this document:

3:1

Clinker burning heat consumption heatconsumptionofclinkerburning

During the test period, the combustion heat of various fuels consumed by clinker sintering is converted into the thermal energy consumed by 1kg of clinker:

Note: The heat consumption of clinker burning can also be called the heat of fuel combustion:

3:2

Firing system heat utilization ratio of pyrosystem ny

During the test period, the effective utilization of thermal energy in the cement clinker firing system accounted for the proportion of the thermal energy input of fuel combustion: