A synchronous control system and method for automatic coal feeding and emission reduction equipment in a coal-fired barn

Abstract

The invention discloses a synchronous control method for automatic coal feeding and emission reduction equipment in a coal-fired barn. Whenever the temperature in the coal-fired barn is lower than the set value of the temperature-time curve and the difference reaches the target value, the main control The device controls the automatic coal feeding equipment to feed coal once, and at the same time controls the start-up of the combustion-supporting fan. By adjusting the speed of the screw propeller of the automatic coal feeding equipment, the single coal feeding amount is controlled, so that the coal-fired barn is in the yellowing period, fixed color period, The corresponding single coal intake in the dry gluten period increases sequentially; the water spray flow rate of the atomizing nozzle is controlled by the water valve, so that the corresponding water spray flow in the yellowing period, the fixed color period, and the dry tendon period of the coal-fired barn is sequentially Increase, when the combustion-supporting fan is turned on, there is a larger water spray flow rate; the present invention combines the automatic coal feeding equipment with the desulfurization and dust removal equipment to effectively reduce the concentration of pollutants in the tail gas.

Description

technical field [0001] The invention relates to the field of flue-cured tobacco modulation equipment, in particular to a synchronous control system and method for automatic coal feeding and emission reduction equipment in a coal-fired oven. Background technique [0002] Coal-fired intensive barn is the main modulation equipment for flue-cured tobacco production in my country. After the coal is burned, the air in the barn is heated by the heat-dissipating device to dehydrate and dry the tobacco leaves. This process requires a lot of heat, and about 1.5kg of coal is required for each 1kg of dry tobacco. , my country is the world's largest producer of flue-cured tobacco, and the annual output of flue-cured tobacco is maintained at 1.5×10 6 About t, the annual coal consumption of flue-cured tobacco is about 2.25×10 6 t, due to the lack of corresponding emission reduction equipment and measures, the SO2 produced by burning coal in the oven 2 , smoke and other pollutants are dire...

AI Technical Summary

Problems solved by technology

[0002] The coal-fired intensive curing barn is the main modulation equipment for the production of flue-cured tobacco in my country. After the coal is burned, the air in the barn is heated by the heat dissipation equipment to dehydrate and dry the tobacco leaves. This process consumes a lot of heat, and 1 kg of dry tobacco needs about 1.5 kg of coal. , my country is the world's largest flue-cured tobacco production country, and the annual output of flue-cured tobacco is maintained at 1.5×10 6 About t, flue-cured tobacco needs to consume about 2.25×10 coal per year 6 t, due to the lack of corresponding emission reduction equipment and measures, the SO produced by burning coal in the barn 2 Pollutants such as smoke and dust are directly discharged into the atmosphere, which has brought serious harm to the environment.

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