By calculating, the average coal consumption per hour is 26ton, annual coal consumption is 195000ton (running hour 7500 per year). The capacity of fuel yard is designed for 15 days; area is 48×150m which can store coal with 9360ton. The coal will be fed to the belt by coal bin, then transported to the crusher, after screening, the finished coal will be stored in the bin in front of the boiler.

3.      Installation solution

Two sets of Circulating fluidized bed boiler, which can burn different kind of fuel with high efficiency and can run in different load case, will be adopted. Two sets of steam turbine with capacity of 12MW and steam parameter of 48t/h-3.43-435Celsius Degree will be adopted.  The water will be pumped to the Low-Pressure heater first and then to deaerator and High-Pressure heater and then to boiler. The steam generated by two boilers will be merged together in steam header and then introduced into the two steam turbines. The turbine has Low-pressure and High-pressure steam extraction outlet to heat the feedwater in Low-Pressure heater, High-Pressure heater and deaerator.  Therefore, the thermodynamic system formed.

4.      Treatment of waste gas and slag

The electrical precipitator with single line and four electric fields will be adopted as the waste gas treatment equipment of boiler. The collected dust will be transported to the outside. The storage bin will be installed for storing the slag discharged from the boiler. The waste gas will be induced to the stack by fan.

5.      Sulfur removal treatment

The sulfur removal device should be adopted in boilers, as per the sulfur content of the coal and the characteristic of the boiler, when the furnace temperature is around 800-900Celsius Degree, burning the limestone with rated particle size, the sulfur removed efficiency can reach 80%, which will fulfill the environmental protection requirement.

6.      Cooling water and Demineralized water System

Water circulating cooling system will be selected which includes the pumps, cooling towers, water pond and pipeline. During the system working, the cooling water will be pumped from the water pond to the equipments which needed to be cooled; after heat exchanging, the water will be transported back to the cooling tower.

The mixed-bed exchanger system will be selected as the water demineralization system. The process of water treatment is as follow:

Water (domestic water pipeline or firefighting pipeline) →mechanical filter→clean water tank→clean water pump→action exchanger→CO2 removal equipment→intermediate tank→intermediate pump→anion exchanger→demineralized water tank→Demineralized water pump→Turbine room

7.      Main Equipment

8.      Main Indexes