How To Save Cost Of Coal Fired Boiler
Coal fired boilers are widely used in our country and abroad. To realize the energy conservation of coal fired boiler, all aspects of factors should be considered. Reducing the burning loss is an effective way to save cost of boiler. There are several factors that should be take into account
Appropriate coal
The quality of coal has a grate influence on the service life of coal fired boiler, the proper coal includes the following aspects: the ash content of coal is not less than 6%, the ash melting point should be over 1250 ℃, the coal particle size should be moderate, the detritus content below 3mm is not more than 30%, the largest particle should not exceed 40mm.
A reasonable layout of furnace
In order to reduce the combustion loss, the full combustion of fuel is needed, which can be achieved by strengthening the mix and stir of space air, it is completed by the cooperation of front and rear arches and the secondary air.
A reasonable air distribution
The air is indispensable to ensure combustion,the reasonable air distribution makes a great difference to the energy conservation of coal-fired boiler, the air should also be reasonably distributed along the grate length and width direction.For example, ZG coal-fired boiler adopts the way of air inlet in both sides, longitudinally arranges six air chambers along the grate, each air chamber has air regulating devices to adjust the air volume, which can achieve the best effect of adjusting the combustion.
Meanwhile, we should also regulate and control the combustion of fuel layer well by changing the thickness of coal seam,the volume of air supply and the speed of grate.
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