icecool
Mechanical
- Sep 6, 2010
- 23
Dear All,
I am working in a 250MW Coal power plant. This power plant has 3 Tube mills. normally 2 are in service. These mills named as AB, CD, and EF.
The problem is whenever I take Mill CD in service. It consumes more power than other mills (Mill rating is 2350 kw, Mill AB and EF takes around 1150 kW. When operating Mill CD consumes 1300 kW. All these Mills are operating at same coal flow). In addition whenever mill CD is in service the PA Fan also consumes more power.
The way structure is designed the Mill CD is placed in between AB and EF. also the Common duct of PA fan air has similar kind of design. I attached a line diagram of mill and PA Fan. Please suggest what could be a potential issue with Mill CD. I have attached a line diagram of the Mill and PA fan.
Thanks
I am working in a 250MW Coal power plant. This power plant has 3 Tube mills. normally 2 are in service. These mills named as AB, CD, and EF.
The problem is whenever I take Mill CD in service. It consumes more power than other mills (Mill rating is 2350 kw, Mill AB and EF takes around 1150 kW. When operating Mill CD consumes 1300 kW. All these Mills are operating at same coal flow). In addition whenever mill CD is in service the PA Fan also consumes more power.
The way structure is designed the Mill CD is placed in between AB and EF. also the Common duct of PA fan air has similar kind of design. I attached a line diagram of mill and PA Fan. Please suggest what could be a potential issue with Mill CD. I have attached a line diagram of the Mill and PA fan.
Thanks