Biomass power plant fuel system

Abstract

At present, when a biomass power plant burns yellow straws, the mode that the yellow straws are packed and then crushed, or crushed and then packed and baled off is adopted, and as crushing equipment can not adapt to the loose and soft characters of the yellow straws, the crushing effect is poor; and the problems that the crushed straws needs to be conveyed by a spiral packing auger before entering a stove and the packing auger is intertwined by the straws can not be solved. The existing operating power plant which burns the yellow straws now burns rice hulls and peanut shells and the like instead of the yellow straws due to the incapability of solving the problems. In order to achieve the entire pack burning of the biomass fuel and direct burning on a fire grate, a whole set of biomass power plant fuel supply system which adapts to the mode is developed and designed, the system mainly comprises systems and equipment such as a process route which adapts to the mode and a high-density straw packer, a crane and a bucket grab thereof, an automatic conveyor line for entire pack feeding, and the like. The system is successfully applied in Jiangsu Donghai Longyuan Biomass Power Plant.

Description

1. Technical field [0001] The present invention relates to the capacity calculation and reasonable selection of a complete set of processes and equipment for biomass fuel collection, processing, storage, packing, reshipment, transportation, loading and unloading, in-plant transportation, and furnace loading in biomass power plants. The fuel systems of straw power plants are different. It is different from the coal conveying system of conventional power plants, and also different from the feeding system of the paper industry. 2. Background technology [0002] At present, when burning yellow straw in biomass power plants, all straws are packed and broken or packed and then scattered. The crushing effect is not good; and the crushed straw needs to be conveyed by the screw auger before entering the furnace, the problem of the straw winding auger cannot be solved, and the negative pressure of the boiler makes it difficult to achieve a quieter layer on the grate for the light crus...

AI Technical Summary

Problems solved by technology

[0002] At present, when burning yellow straw in biomass power plants, all straws are packed and broken or packed and then scattered. The crushing effect is not good; and the crushed straw needs to be transported by the screw auger before entering the furnace, the problem of the straw winding auger cannot be solved, and the negative pressure of the boiler makes it difficult to achieve a quieter layer on the grate for the light crushed straw fuel Combustion technology, the increase of fly ash provides a coking and corrosion environment

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