Main problems in Energy Saving and Emission reduction of Industrial boilers in Chemical Plant
The main problems existing in Energy Saving and Emission reduction of Industrial boilers in Chemical plants?
1. The coal type does not match with the furnace type design, the automatic control level of the industrial boiler in the chemical plant is relatively low 3, the thermal efficiency of the industrial boiler in the chemical plant is generally lower 4, and the comprehensive quality of the operators in the industrial boiler in the chemical plant is relatively poor.
1. The selection of coal type and furnace type design mismatch fuel nature is directly related to the combustion mode of boiler, the selection of combustion equipment and the design of boiler body. At present, coal is the main fuel of industrial boilers in chemical plants in China. According to the volatile matter of dry ash-free coal, coal can be divided into four categories: lignite, bituminous coal, lean coal and anthracite.
2. The relatively low level of automatic control of industrial boilers in chemical plants is another important factor that leads to high energy consumption and substandard energy saving and emission reduction of industrial boilers in chemical plants in China. At present, the investment chemical plant industrial boiler construction investment province, the construction standard is low starting point. Therefore, the number of industrial boiler instruments in chemical plants is small, the accuracy of instrument selection is low, and the overall level of automatic control is poor, such as the lack of pulverized coal metering and important rotating equipment meters, flue gas o. The oxygen meter data is seriously inaccurate, not only the operator can not judge and adjust the operation state of the boiler in time, but also the pipeline can not be adjusted in time. Scientific worker It is also difficult for the author to evaluate and control the operation performance of the boiler scientifically. Due to the lack of hardware and management, the effect of energy saving and emission reduction of industrial boilers in chemical plants is not obvious.
Although cogeneration of heat and power has been gradually popularized in industrial production in China, the number of boilers in chemical enterprises still accounts for the vast majority, and most of them are small capacity layered combustion boilers. Because it is a common chemical factory boiler load changes frequently, often or long-term low load operation state, the existence slag and fly ash carbon content is high, the excess air excess coefficient in the flue gas, the steam and water loss is serious, the smoke exhaust temperature is high, The actual boiler thermal efficiency in China is generally low and the waste of energy resources is very serious.
4. The comprehensive quality of the industrial boiler operators in the chemical plant is relatively poor. The comprehensive quality of the operators plays an important role in the economic and environmental protection operation of the industrial boiler in the chemical plant. On the one hand, the requirements of industrial boiler workers in chemical plants are not high in many countries, and the educational level of junior middle school or above meets the requirements. On the other hand, the operating environment of industrial boilers in chemical plants is relatively bad, and the income and income are relatively low. The salary is not high. Therefore, most of the industrial boiler operators in chemical plants do not carry out systematic and in-depth theoretical training, which not only has a weak awareness of energy saving and emission reduction, but also fails to master the industrial boiler pots of chemical plants. Furnace energy saving and emission reduction skills.
