Calibration method and device for milling equipment

Abstract

The invention provides a verification method for powder manufacturing equipment. The verification method comprises the steps of obtaining related data of the powder manufacturing equipment; obtaining input heat quantity and output heat quantity of the powder manufacturing equipment according to the related data of the powder manufacturing equipment through calculation, wherein the input heat quantity comprises physical heat of a drying agent, physical heat of leaked cold air, physical heat of sealing air, grinding mechanical heat and raw coal physical heat while the output heat comprises raw coal water content evaporation consumed heat, heat taken out by exhaust gas drying agent, heat consumed by heating fuel and equipment heat dissipation loss; and obtaining inlet heat deviation ratio according to the input heat quantity and the output heat quantity, comparing the inlet heat deviation ratio with a preset threshold value, and when the inlet heat deviation ratio is less than the preset threshold value, obtaining a verification result of the powder manufacturing equipment through heat balance between the input heat quantity and the output heat quantity. Therefore, effective basis is provided for a working staff to determine whether the powder manufacturing equipment is normal or not, so as to perform debugging or maintaining.

Description

technical field [0001] The invention relates to the field of milling, in particular to a method and device for verifying milling equipment. Background technique [0002] The pulverizing system is an important auxiliary equipment of the power plant boiler, which occupies a very important position. Unreasonable design or operation of the pulverizing system will cause a series of problems, such as severe wear and tear of the equipment, high power consumption of the system, and deterioration of the combustion conditions in the furnace , Boiler output limitation, slagging, corrosion and other consequences in the furnace. To solve these problems, it is necessary to reasonably select the equipment parameters and system layout of the pulverizing system, and the selection of pulverizing system equipment depends on the thermal calculation results in the pulverizing system; The thermal calculation involves the processing and operation of many types of parameters; the manual calculation...

AI Technical Summary

Problems solved by technology

[0002] The pulverizing system is an important auxiliary equipment of the power plant boiler, which occupies a very important position. Unreasonable design or operation of the pulverizing system will cause a series of problems, such as severe wear and tear of the equipment, high power consumption of the system, and deterioration of the combustion conditions in the furnace , Boiler output limitation, slagging, corrosion and other consequences in the furnace. To solve these problems, it is necessary to reasonably select the equipment parameters and system layout of the pulverizing system, and the selection of pulverizing system equipment depends on the thermal calculation results in the pulverizing system; The thermal calculation involves the processing and operation of many types of parameters; the manual calculation workload is huge and not accurate enough, and the actual measurement is often inaccurate and has a large error due to the measurement environment and measurement methods; in addition, due to China's coal supply is complex and diverse, and the coal used is often quite different from the designed coal, which puts forward higher requirements for the safe and economical operation of the pulverizing system. At the same time, there are various types of coal mills and pulverizing systems. Therefore, the industry There is an urgent need for a general power plant boiler pulverization system calculation and verification method, which can be calculated for different coal types, different types of coal mills, and different types of pulverization systems, and can be used for optimal selection of pulverization system design, pulverization Provide accurate technical data for system accident analysis, optimized operation, and operation of coal mills for changing coal types and working conditions

Images