A two-way slag removal system for biomass boilers and its control method

Abstract

The invention discloses a two-way slag removal system for biomass boilers, which has the characteristics of good slag removal effect and long service life, and can realize the function of self-blocking. And the auger placed in the guide shell. The auger includes a rotating shaft and two-way helical blades symmetrically arranged with the center of the rotating shaft. The guide shell is provided with a slag inlet located above the center of the rotating shaft. There is a slag outlet under the two-way helical blade, the inner end of the two-way helical blade is welded with the rotating shaft, and the thickness of the two-way helical blade gradually decreases from the inner end to the outer end. In the motor, the right connecting shaft and the motor shaft of the motor are connected by a coupling, and the right connecting shaft and the coupling are connected by a vibration mechanism, and the invention is suitable for the technical field of boilers.

Description

technical field [0001] The invention belongs to the technical field of boilers, in particular to a two-way slag removal system for biomass boilers and a control method thereof. Background technique [0002] At present, the tail slag removal equipment commonly used in biomass boilers (grate furnace) is mainly a one-way slag removal machine designed by the manufacturer, which includes motors, couplings, augers and guide jackets and other components. The motor is used as the power, through The shaft coupling drives the shaft auger to rotate at a constant speed. With the help of the rotation force of the auger, the burnt ash and slag at the tail of the boiler are drawn out of the furnace in one direction, and then flow out through the slag outlet opened on the lower side of the guide jacket. The slag outlet Connect the slag discharge pipe to collect the burnt ash of the boiler into the slag truck and transport it to the building material manufacturer as raw material. However, t...

AI Technical Summary

Problems solved by technology

However, the motor power of the existing one-way slag remover is small, so that once the boiler load exceeds the working condition, the amount of ash and slag is large, and it is easy to get stuck and stalled, and there is also the problem that the auger is blocked due to ash and slag agglomeration , it is very easy to cause technical problems such as greater wear of the rotating blades of the auger, fracture of the coupling, and burnout of the motor.

Images