A high-moisture distiller's grain fuel direct-fired boiler system

Abstract

The invention discloses a high-moisture vinasse fuel direct-fired boiler system which comprises a screw conveyer, a boiler, a dust remover, a drying gasification combustion device and an air distribution system, wherein the boiler comprises a hearth, a hearth feed inlet, a hearth discharge hole, hearth air inlets positioned on the front side wall and the rear side wall of the hearth, a hearth air outlet, a chain grate arranged between the hearth feed inlet and the hearth discharge hole and a water cooling grate arranged at the hearth feed inlet; an inlet end of the drying gasification combustion device is connected with the screw conveyer, and an outlet end of the drying gasification combustion device is connected to the front side wall of the hearth between the hearth air inlets and the hearth feed inlet; and the air distribution system comprises primary air sent into the hearth from the hearth air outlet, secondary air sent into the hearth respectively from the hearth air inlet and the hearth feed inlet and circulation air which is introduced from the rear end of the dust remover and sent into the drying gasification combustion device. The high-moisture vinasse fuel direct-fired boiler system can be used for realizing the direct burning of high-moisture vinasse and reducing the quantity of support equipment.

Description

technical field [0001] The invention relates to a boiler system, in particular to a high-moisture distiller's grain fuel direct-fired boiler system. Background technique [0002] At present, the water content of distiller's grains produced by winery brewing is generally about 60%, which takes up a lot of space and resources, and causes serious pollution to the environment. How to recycle distiller's grains has become a research topic in the brewing industry and other industries. If it is used as fuel, the first method is usually to dry the distiller's grains before burning, and the second way is to burn the distiller's grains mixed with coal. [0003] The first method uses the distiller's grains drying system (see figure 1 ) and distiller's grains combustion system. The distiller's grains drying system includes an incinerator 1, a drying drum 2, a water film dust collector 3 and an induced draft fan 4. First use coal as fuel and burn it in the hearth of the incinerator 1...

AI Technical Summary

Problems solved by technology

[0004] (1) It is necessary to use coal as an auxiliary fuel to dry wet distiller's grains, so the energy consumption is large;

[0005] (2) The entire system is complex, with many equipments and a large floor area;

[0006] (3) High operating cost

[0008] (1) Coal needs to be used as auxiliary fuel, so the energy consumption is relatively large, and the energy saving effect is not obvious;

[0009] (2) The processing capacity of distiller's grains is limited

Images