Intelligent fire coal scheduling system for thermal power plant

Abstract

The invention provides an intelligent fire coal scheduling system for a thermal power plant. The system comprises an on-line coal inventory unit, a material piling and taking machine unit, a coal conveying unit, a coal bin unit and a system server, wherein the system server comprises an intelligent material piling calculation module, an intelligent coal distributing and feeding calculation module, and a material taking decision module; the intelligent material piling calculation module determines the optimal coal piling position to guide the material piling and taking machine unit to complete coal piling; the intelligent coal distributing and feeding calculation module is used for receiving coal inventory information of the on-line coal inventory unit and the real-time state of a boiler unit, determining a coal distribution scheme according to the coal inventory information and the real-time state of the boiler unit and further determining a coal feeding scheme according to boiler characteristics and the coal distribution scheme; and the material taking decision module determines a material taking path according to the coal inventory information and the coal feeding scheme to guide the material piling and taking machine unit and the coal conveying unit to cooperatively complete material taking. The fire coal of the thermal power plant is subjected to full-life cycle management and intelligent scheduling, and the boiler unit is ensured to have high safety, economy and environment friendliness under the condition of co-combustion.

Description

technical field [0001] The invention belongs to the technical field of production scheduling of thermal power plants, and in particular relates to a coal-fired intelligent scheduling system and control method of thermal power plants. Background technique [0002] China is a country where coal is the main energy source, and coal resources occupy an important position in China's primary energy structure. In the composition of China's electric power industry, coal-fired thermal power accounts for more than 80% of the total, and this structure will not change fundamentally for a long time. However, China's coal resources are unevenly distributed, the coal washing rate is low, the price fluctuates greatly, the transportation pressure is heavy, and the supply situation of the coal market is becoming increasingly tense, which makes many power plants unable to use the designed coal types of the boilers, but can only use a variety of coals Coal-fired co-firing. [0003] For power p...

AI Technical Summary

Problems solved by technology

Under the condition of blended combustion, the boiler is essentially in a non-design coal combustion state. If the blended combustion plan selected is unscientific, it may lead to a decrease in operational safety, a decrease in boiler efficiency and an increase in pollutant emissions. At the same time, if The monitoring and management of the coal type of coal is not standardized, and the situation of mistaking the coal type may also lead to the above problems. Therefore, the scientific implementation of coal-fired blending in power plants requires on the one hand the correct selection of the blending plan, and on the other hand On the one hand, it is necessary to carry out standardized management and scheduling of coal combustion

[0004] Among the patented technologies that have been disclosed in this technical field, the patent No. "200920152024.3" and the patent titled "Unattended System for Fuel Entry and Exit in Thermal Power Plants" provide an automatic management system for fuel in power plants, but only for the entry and exit of coal yards. Management; the patent number is "200910040520.4" and the technology titled "A method for co-combusting sludge in a pulverized coal furnace" introduces a method for co-combusting coal and sludge, which does not involve the determination of the proportion of co-combustion and the optimal decision-making of combustion and management level

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