RWE Npower
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Tilbury Power Station - England
Dynamic Classifier Retrofit
In November 2005, Loesche GmbH was contracted to design, supply and install five trial dynamic classifiers for Tilbury Power Station, Essex, England.
The pre-conversion Mean Rosin Rammler Slope was 49.4°, rising to 58.8° post conversion (2006).
After successfully passing the guarantee conditions, Loesche Energy Systems was awarded the subsequent contracts for units 8 & 10 (five dynamic classifiers per unit).
Unit 8 installation was successfully completed in June 2007 with unit 10 scheduled for completion in October.
Mill Speification
Mill Size:
MPS 180
Original Classifier:
OEM static
Retrofit Classifier:
LSKS 36 zD- 2so
Capacity:
35.0 Te/hr
Product Fineness:
>75% - 75 micron
>99.75% - 300 micron
Completion Date:
Unit 9 — Sept 2006
Unit 8— June 2007
Unit 10—Oct 2007
Summary of Results
Coal Flow:
35.0 (Te/hr)
Contract Coal:
Bituminous
200 micron: 99.9% passing
150 micron: 98.3% passing
90 micron: 83.1% passing
63 micron: 63.7% passing