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Dairy industry CFB boiler low loss header low range gas hot water
boiler
Dairy industry CFB Utilization
1. With CFB technology, the circulating bed material flows together
with flue gas through the furnace, after which it is separated from
the gas and returned back to the lower part of the furnace with
cyclones.
2. This technology provides an even combustion temperature profile,
which is optimal for handling a wide variety of fuel properties,
such as heating value, moisture, ash content and a number of low
melting point ash components.
3. This also ensures low primary emissions with high combustion
efficiency and excellent utilization of additives for sulphur
removal and other special purposes.
CFB High fuel flexibility
1. The main advantage of our boiler is its superb fuel flexibility.
Most of the over 90 references around the world are multifuel
boilers that combust biomasses and fossil fuels in continuously
varying proportions.
2. Cocombustion is an environmentally benign method of combining
excellent reliability and availability with great potential to
optimize operational costs by allowing several fuel alternatives.
CFB Boiler Low environmental impact
1. As for temperatures inside the furnace, while a regular boiler
reaches 1,400-1,500°C, temperatures inside a CFB are in the low
range of 800-900°C, thus inhibiting the generation of thermal
nitrogen oxides (NOx whose production is dependent on combustion
temperature).
2. Further, with the use of two-stage combustion, NOx generation
can be limited to less than 100 ppm. When limestone is supplied to
the furnace, furnace desulfurization can take place as illustrated
by the following chemical equations.
Main Specifications of Circulation Fluidized Bed Boiler
boiler capacity | 35t/h | 75t/h | 130t/h |
rated steam capacity t/h | 35 | 75 | 130 |
rated working pressure Mpa | 3.82 | 3.82 | 5.3 |
rated steam temperature℃ | 450 | 450 | 450 |
feed water temperature ℃ | 105 | 130 | 150 |
combustion method | Circulation fludized bed combustion | Circulation fludized bed combustion | Circulation fludized bed combustion |
applicable coal | Coal | Coal | Coal |
design the fuel low level caloric | 12670 | 8117 | 6520 |
the coal consumption at full load operation(Kg/h) | 9045 | 20417 | 38792 |
designed efficiency % | 88.6 | 88 | 88 |
exit gas temperature ℃ | 150 | 145 | 150 |
De-sulfur efficiency % | 88 | 88 | 88 |
fuel particle requirement mm | ≤10 | ≤8 | ≤10 |
lime stone particle requirement mm | ≤2 | ≤2 | ≤2 |
drum central line elevation mm | 25000 | 28300 | 33000 |
the highest point elevation l mm | 26750 | 33950 | 54270 |