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Coal sampling computerised

RAICHUR, JAN. 11. The coal sampling system at the Raichur Thermal Power Station has been computerised. The arm of the equipment collects samples from the wagons and drops them in the bins kept in a cabin attached to it. The bins are sealed and sent to the laboratory at the plant. It takes less than an hour to collect samples from 58 wagons. The older mechanical system used to take several hours of manual labour.

The computerised system is said to have ensured perfect grading of coal. With an installed capacity of 1,470 MW, the power station needs about seven million tonnes of coal annually. This is brought from Singareni Collieries, the Western Coal Fields, and the Mahanadi Coal Fields. Karnataka Power Corporation Ltd. has reserved Rs.1,000 crore of its annual budget of Rs.1,900 crore for buying coal. R.R. Chousalkar, Executive Director (Thermal), and D. Jayaprakash, Executive Director (Thermal Construction), of the power station, told that the introduction of high-grade washed coal and computerised collection of samples and grading had enabled the corporation to save about Rs. 100 crore annually.

According to Mr. Chousalkar, the ash percentage in washed coal is 34 as against the 45 in the unwashed fuel.

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