Rated steam output: 20-35ton/h
Rated working pressure: 1.25-2.5Mpa
Fuel type: anthracite coal, meagre coal, lignitous coal, bituminous coal
The coal fired steam boiler system is a large industrial bulk boiler. Due to limitations of volume and transportation, we transport parts of the boiler in pieces and customers can assemble them on site. We can provide technicians to provide on-site installation and debugging services upon request.
The boiler is fueled by coal and it effectively heats the water within, evaporating it so that it can condense within a heat exchanger and the cycle continues. It can provide heat for manufacturing equipment or as generalized heating in large structures.
The steam boiler is widely used in industry, and its main applications include:
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The industrial boiler is a natural circulation boiler which is divided into two parts. The upper part is a boiler heated surface, and under part is a grate. The economizer and air per-heater are set at the tail of the boiler. The boiler features a water circulation system, flue gas system, ash system and blowing system.
1. Boiler heated surface
The boiler heated surface consists of a steam drum, water drum, header, water wall and convection tube bundle. Water drum is equipped with sewage device.
The boiler uses chain grate and wind blows from the bottom. There are 6 independent wind chambers under the grate, which can be adjusted according to the user combustion conditions to save electricity.
The economizer is placed at the tail of boiler, which is used to recover the residual heat of flue gas. When the temperature of exhaust gas is too high, the economizer can reduce the temperature and can save fuel.
4. Air per-heater
The air pre-heater can heat the air before entering the boiler and improve combustion efficiency.
5. Water circulation system
Water source—pump—economizer—drum—downcomer-- water drum-- riser tube-- steam drum-- steam outlet
6. Ash system
The fuel ash after burning is discharged by the slag extractor at the end of grate, ash not timely discharged will fall into front ash bucket with chain grate running. So users need to clean regularly.
industrial boiler, steam boiler, tube boiler, coal fired boiler