Coal pulverizer used in coal furnace for power plant

Coal pulverizer used in coal furnace for power plant

Coal pulverizer 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.

Coal pulverizer characteristics:

Thick lining panel: coal pulverizer, the inner shell lining is with thick chrome steel plates. So it is very durable.

High wear-resistant hammer for crushing.

Small particle size: after crushed,the particle size is smaller, when burning it will be more sufficiently and more environmental(less smoke). The particle size is about 160-200 mesh.

High production capacity. coal pulverizer is with reasonable design, 10% higher than similar products in production.

Combustion. Our machine has double oxygen input, it can improve efficiency and burn sufficiently.

Rapid deceleration integration: reduction gear and spindle are designed in same group, to save electricity.

No black smoke.

Coal pulverizer structure and working principle:
Coal pulverizer 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.

 Coal burner introduction:
Coal burner (or pulverized coal burner) is a mechanical device that burns pulverized coal into a flame in a controlled manner. Coal burner is mainly composed of pulverized coal machine, host of combustion machine(including combustion chamber, automatic back and forth motion system, automatic rotation system, the combustion air supply system) control system, ignition system, the crater and others.

Coal burner working principle:
In the worksite, a coal burner works with the coal pulverizer and coal hopper usually. The coal in the hopper is conveyed to the coal pulverizer by screw conveyor. The coal pulverizer will crush the coal into pulverized coal. In the coal burner, the pulverized coal mixes with air (High-speed air flow is generated by the draft fan on the coal burner), and is ignited by the oil burning igniter.

Coal pulverizer technical parameter:

Coal pulverizer Application:

Coal pulverizer to be used for drying, annealing, tempering boilers, steam and so on. 

Applicable industry: Malleable Iron, foundries, rolling mills, strip mills, cement plants, boiler plant industry.

It can replace oil, gas and electric power thermal energy equipment, which can save 40-50% of energy.

Mark of coal: bituminous coal;
Gross calorific value: ≥5000kcal/kg (≥ 20000kJ/kg);
Net calorific value: ≥4200kcal/kg;
Volatile matter: ≥25%;
Ash Content: ≤10%;
Total moisture: ≤35%;
Inherent moisture: ≤14%;
Total sulphur: ≤1%;
Particle size: ≤20mm.
Note: These indexes are the lowest requirements for the coal, the better coal will be

better at practice.

Coal pulverizer shipping:

Derui services:

Payment: By TT,30% upon order confirmed, 70% upon shipment.

Delivery: After we got your prepayment, we can arrange the production, it need take 6(six) working days.Second, it will need 4(four) 

days for the inland transportation to china Port. third, it will need 2(two) days for complete the china customs clearance.

Warranty: one year. If any parts (excluding easily damaging parts) are found defective in quality in the first year, we shall replace it

 free-of-cost. But the relevant cost shall be bear in your account (round trip air ticket, board and lodging).

How to visit us ?

If you want to visit our factory, please note our city name, Zhengzhou City, Henan Province, China(mainland)

Our air port name is : Zhengzhou Xinzheng International air port.

Train station name is: Zhengzhou (Zhengzhou north) train station