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5. Power station advanced technology application
5.1 Applied the low parameter condense steam turbine and low temperature thermo captive generating system, it collects almost all the waste heat energy and change into power generating and apparently reduced the cement plant energy consumption.
5.2 Applied the lower than 150â„?/SPAN> steam instead of steam extract reheating system, it eliminated the extract steam for low pressure heater, Deaerator and high pressure heater and reduce the steam consumption of the steam turbine.
5.3 Clinker cooling thermo heat captive boiler AQC boiler applied two section convection bank, it has absorb the thermo heat in the best way.
5.4 In order to operation in safety, all the flue gas heat captive boiler equipped the bypass pipe system. If necessary, whole the thermo captive boiler or power station system can be apart from the main cement production line and the cement line operation in normally.
6. Mail equipment list
|
SN |
Equipment description |
Specification |
|
6.1 |
Condense steam turbine |
One set |
|
|
Type |
N9-1.27 |
|
|
Rated power |
9000kW |
|
|
Rated speed |
3000r/min |
|
|
Rated living steam pressure |
1.27MPa |
|
|
Rated living steam temperature |
305â„?/SPAN> |
|
|
Steam flow rate |
45t/h |
|
|
Rated discharge pressure |
0.007MPa |
|
|
|
|
|
6.2 |
Generator |
|
|
|
Type |
QF2-9-2 |
|
|
Rated output |
9000kW |
|
|
Rated speed |
3000r/min |
|
|
Outlet voltage |
10.5kV |
|
|
|
|
|
6.3 |
Kiln end preheating captive boiler (SP) |
One set |
|
|
Inlet waste flue gas |
290000 Nm3/h-320â„?/SPAN> |
|
|
Inlet gas duct content |
�st1:chmetcnv w:st="on" UnitName="g" SourceValue="80" HasSpace="False" Negative="False" NumberType="1" TCSC="0">80g/m3 (standard) |
|
|
Discharge gas temperature |
210â„?/SPAN> -- 220â„?/SPAN> |
|
|
Water circulation |
Nature circulation |
|
|
Steam section |
|
|
|
Boiler total leakage |
�% |
|
|
Arrangement |
Vertical, outdoor |
|
|
Ash cleaning method |
As per boiler manufacturer |
|
|
Steam outlet |
21t/h-1.47Mpa-305â„?/SPAN> |
|
|
Feed water temperature |
150â„?/SPAN> |
|
|
|
|
6.4 |
Kiln head clinker cooler heat captive boiler (AQC) |
|
|
Inlet waste flue gas |
260000Nm3/h-340-400â„?/SPAN> |
|
|
Inlet gas duct content |
�st1:chmetcnv w:st="on" UnitName="g" SourceValue="50" HasSpace="False" Negative="False" NumberType="1" TCSC="0">50g/m3 (standard) |
|
|
Discharge gas temperature |
�0-100�/SPAN> |
|
|
Boiler total leakage |
�% |
|
|
Arrangement |
Vertical, outdoor |
|
|
Water circulation |
|
|
|
Steam section |
Nature circulation |
|
|
Steam outlet |
24t/h-1.47MPa-325â„?/SPAN> |
|
|
Feed water temperature |
135â„?/SPAN> |
|
|
Boiler hot water section |
|
|
|
Outlet water temperature |
70t/h-155â„?/SPAN> |
|
|
Inlet water temperature |
40â„?/SPAN> |
|
|
|
|
|
6.5 |
Boiler feed water pump |
2 sets |
|
|
Flow rate |
50-60t/h |
|
|
Height |
250-320mH2O |
|
|
|
|
|
6.6 |
Condense pump |
2 sets |
|
|
Flow rate |
50-60t/h |
|
|
Height |
54-68mH2O |
|
|
|
|
|
6.7 |
De-aerator and storage tank |
1 set |
|
|
Capacity |
50t/h |
|
|
Operation pressure |
0.008MPa |
|
|
Working temperature |
40â„?/SPAN> |
|
|
Tank capacity |
25m3 |
|
|
|
|
|
6.8 |
Mechanical cooling tower |
4 sets |
|
|
Capacity |
1500t/h |
|
|
Inlet water temperature |
33â„?/SPAN> |
|
|
Outlet water temperature |
25â„?/SPAN> |
|
|
|
|
|
6.9 |
Circulation cooling water pump |
3 sets |
|
|
Flow rate |
2300-2700t/h |
|
|
Height |
18-23mH2O |
|
|
|
|
|
6.10 |
Two stages Na ion exchanger |
Two sets |
|
|
Capacity |
20t/h |
|
|
|
|
|
6.11 |
Soft water pump |
2 sets |
|
|
Flow rate |
20-30t/h |
|
|
Height |
25-32mH2O |
|
|
|
|
|
6.12 |
Single beam double hook crane |
One set |
|
|
Main hook capacity |
20t |
|
|
Second hook |
5t |
|
|
Span |
13.5m |
|
|
|
|
|
6.13 |
DCS system |
1 set |
|
|
Total control points |
580 |
|
|
|
|
|
6.14 |
Operation table |
Three |
|
|
|
|
|
6.15 |
High voltage panel |
5 panels |
|
|
|
|
|
6.16 |
lower voltage panel |
12 panels |
|
|
|
|
|
6.17 |
Transformer |
300KVA two sets |
|
|
|
|
|
6.18 |
DN3900, PN0.1 decline waste gas pipe and valves and actuator |
1 set |
|
|
|
|
|
6.19 |
DN3900, PN0.1 waste gas pipe and valves and actuator |
1 set |
|
|
|
|
|
6.20 |
DN3000, PN0.1 waste gas pipe and valves and actuator |
3 sets |
To be continued to
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