Potential of performance improvement of Indian coal washeries
- CPEI, CMPDI, Ranchi (India)
The quality parameters of clean coal as produced from washeries are no longer up to the required specifications of the steel plants. As a result, steel plants are required to import better quality coal for blending with indigenous coal. To reduce the import, the performance of the washeries need to be improved. It is observed that there is a gradual deterioration as well as variation in the quality of raw coal feed to the washeries. There has been change in the size consist and increased proportion of fines. This has resulted in the operational problems and low plant availability. There are other constraints affecting the performance of the washeries. In addition to design deficiencies, there are frequent power interruptions, poor quality magnetite, break-down due to poor maintenance schedule and spare parts management, inadequate instrumentation and automation, quality control etc. Unless the above problems are attended, the performance of the washeries cannot be improved. The existing washeries require modifications/modernisation so that they can deal with the changed characteristics of raw coal. The system of washing has to be optimised in terms of plant utilisation and recovery of clean coal of desired quality. The different problems faced today have been analysed and suggestions for improvement put forward.
- OSTI ID:
- 81497
- Report Number(s):
- CONF-950579--
- Country of Publication:
- United States
- Language:
- English
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