Coal Injection Machine

Introduction of coal injection machine

Coal injection machine is used for crushing the lump coal to some certain particle size and further grinding, finally will get the pulverized coal after grinding, which is the important auxiliary equipment for the furnace using the pulverized coal as fuel.

Coal grinding process is the process of coal being crushed and increased the surface area, which can increase burning out rate of coal.

Pulverized coal machine is widely used for industrial boiler (such as heating, annealing, tempering), heating boiler, conduction oil boiler (drying, vaporing) and other kinds boilers. It can be used instead of fuel oil, gas, and electrical heat energy equipment, which can save 50% energy.

Features of coal injection machine

1. Steady heating, uniform heating, special structure, long live life, less repair.

2. Steady fire, high temperature, temperature of hot air can add up to 1300-1400 degree.

3.Sufficient burning fuel, high burning rate be more than 95%.

4. .An easy adjustment of the injection amount and high accuracy of the  injection amount. Increasing 50-70% of rotary drier capacity, saving more than 50% of coal compare with others.

5. Easy to fire and conduct, full automatic.

6. Suitable for most kinds of coal, such as bituminous coal, lignite and so on

7. Wide range application: new type rotary drier, vertical drier, wind-wept mill, old type rotary drier, raw mill drying.

Working principle of coal injection machine

Coal injection machine is consist of feeder, grinding chamber, fan chamber and separator. Grinding chamber is consist of crushing body, main shaft, coal hammer and lining board.

Fan chamber, installed fixed fan on shaft, spraying coal powder to burner. At the bottom of separator, connect with machine body, at the top, coal powder conveyor connect with pipe.

In the cutting edge of separator welded with big size coal powder backflow pipe connect with material entrance, big size coal back to grinding chamber for grinding again.

Technical data