Multi-level impulse bagasse drying system

Abstract

The invention discloses a multi-level impulse bagasse drying system which is characterized in that the boiler gas serving as a drying source and an individual bypass bagasse drying system are adopted, the boiler high-temperature gas is fed into a spark separator; the boiler gas subjected to separation and purification and wet bagasse which has the water content less than or equal to 52% and is fed by a drum-type bagasse feeder are fed into a multi-level impulse dryer to be mixed, and then the dried bagasse with the water content less than or equal to 42% is obtained through a multi-level separator; the dried bagasse is discharged from a dual-roller bagasse feeder, and falls on a bagasse conveying belt and is conveyed back to a boiler room to serve as a fuel; and the flue gas is discharged from a chimney through a vertical flue, a deduster and a draught fan. The operation is controlled automatically by adopting an instrument; the material charge and discharge performances are both excellent, the negative pressure degree and smoothness of the whole drying system can be ensured; negative pressure is increased by a booster fan generally, thus the pressure loss of the drying system is counteracted, the negative pressure required by the combustion of the boiler can be ensured; the degree and depth of heat exchange are higher; the energy conservation and environmental conservation effects are better; the safety property is high; the operation stability is higher; and the system has better economic benefit.

Description

technical field [0001] The invention belongs to the technical field of material drying and relates to a multistage pulse bagasse drying system. Background technique [0002] Most of the bagasse in the production process of the sugar factory is used as boiler fuel for combustion. The water content of bagasse is generally about 50%, and it directly enters the boiler for combustion. A large part of the water needs to be evaporated in the boiler furnace to reach the bagasse. The ignition point of the boiler affects the furnace temperature of the boiler and reduces the combustion efficiency of the boiler. There is also a part of the bagasse powder that is completely burned and just taken out of the furnace, which not only wastes fuel greatly, is not conducive to energy saving and consumption reduction, but also affects the production of sucrose and the ecological environment. Therefore, the bagasse in the production process of the sugar factory should be dried before use. Alth...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is: in order to overcome the deficiencies in the background technology, avoid the problems of traditional dryers such as low efficiency, easy to block, not enough environmental protection, etc., to ensure the boiler combustion required The negative pressure brings greater economic and social benefits to sugar factories using bagasse, and provides a multi-stage pulse bagasse drying system

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