Maximum continuous raining days

           Highest snow depth

2.4.5   Height above sea level:          <550 meter

2.4.6   Seismic condition of area

2.4.7   Mean wind speed

2.4.8   Extreme maximum windy speed

2.5      Hydrology (shall submitted by client�?/SPAN>

           The thermo power plant annually water consumption: 890,000ton/year

2.6      Seismology data

           This design are based upon the maximum seismology 7 Richard scale.

3.        Power Station Electric Connection

The proposal of the 9MW heat captive power station applied the 10kV single bus connection. The generating of 9MW bus connected with cement plant main 10 kV bus of the transformer and to the public power grid. The connection point just in generator output and the generator output voltage shall be same as the main transformer in the cement plant.

The 9MW lower temperature heat captive thermo power station mainly as the energy saving composition application and lower the process energy consumption. The generating power mainly used to the cement production line. The power station operation in parallel but not connected with the public power grid net. As the clinker production line has stoppage for equipment overhaul and maintenance, the power station also stop running.

4.        Power plant plan and Main Equipment

In according to the cement company production condition and our well experienced, for the best used the waste heat and with �?high reliability, advanced technology, no affect the cement production�?principle, make the waste heat captive  power plant as following:

4.1      Waste heat captive boiler

¨                       Kiln end waste heat captive boiler (SP boiler)

Set the SP boiler in the end of the kiln, it is just equipped the steam section, produces the 1.47MPa 305°C steam mixed with the saturated steam 1.47MPa 325 °C from the Kiln head boiler (AQC boiler) and then enter to the steam turbine main inlet, the flue gas discharged from the SP boiler which temperature reduced to 210°C -220°C for the raw meal drying.

¨                       Kiln head waste heat captive boiler (AQC boiler)

The kiln head heat captive boiler (AQC boiler) has two sections of steam and hot water. The steam section produced the 1.47 MPa 325°C superheated steam and it will mixed the steam from SP boiler and enter into Steam turbine for generating; the hot water section used for heating the water from de-aerator to 140-160°C and as the feed water to the SP boiler. The flue gas of AQC discharged temperature lower than 100°C.

4.2      Steam turbine

Above two thermo captive boiler produced steam and hot water total can generate 8180kW. In consideration of the cement production line operation undulate and power override (standard turbine is consideration), we selected the 9MW condense steam turbine, the rated steam inlet parameter as 1.27Mpa-305�?/SPAN>, discharge pressure as 0.007MPa(abs).

4.3      Deaerator system

           Deaerator:           50t/h vacuum Deaerator.

4.4      Steam turbine circulation water system

           Four sets of 1500t/h mechanical cooling tower�?/SPAN>

4.5      Generator is 9000kW, outlet voltage 10kV (as per specified), connected with the existing transformer in the cement plant, station internal power used from cement main transformer.

4.6      Control system

Applied the DCS computer control system, control center located in the steam turbine room.

4.7      Chemical water treatment system

           Applied the two stages Na soften system.

4.8      Others such as pressure air, repairing and maintenance of electrical and machinery will be share as the exist cement factory.

  Above description, it will have the advance in flexible operation, higher reliability, generating workshop as a sub system not affect the main cement factory.