How to Improve Combustion Efficiency of Grate Incinerators
Here are some ways to improve the combustion efficiency of grate-type incinerators:
Waste Pretreatment
Lower moisture content: Pre-treatment such as composting leaches out leachate, reducing moisture and raising the low calorific value so waste burns more easily. Control particle size: Crushing and screening produce uniform, appropriately sized waste, increasing the contact area with air for fuller combustion and avoiding uneven burning.
Optimize the Grate System
Design grate structure properly: Design the grate shape, size and inclination according to waste characteristics so waste moves smoothly and evenly, promoting full contact and mixing with air. Keep grate openings clear: Clean grate openings regularly to prevent blockage and ensure good ventilation so primary air penetrates the fuel layer.
Adjust Combustion Parameters
Precisely control feed speed and volume: Adjust feed rate and amount based on grate speed, waste calorific value and combustion status to keep waste evenly distributed with proper residence time. Scientifically control grate speed: Adjust grate speed according to combustion progress and furnace temperature so waste is optimally treated in drying, combustion and burnout stages. Optimize ventilation: Balance the ratio and volume of primary and secondary air. Primary air supplies oxygen for ignition and stable combustion; secondary air enhances in-furnace disturbance so combustion
