By Charles Simeons
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Additional resources for Coal: its Role in Tomorrow's Technology. A Sourcebook on Global Coal Resources
Example text
Here failure in longwall mining has been the experience, but fresh attempts are expected in Western Canada, the main sphere of increase in mining activity. East British Columbia. This area is at present practising hydraulic mining above the drainage level which is soon to be extended below it. Koiser Resources also have a large new hydraulic mine with a production target of 2 million tons by 1980. South East British Columbia. Here, an underground hydraulic mine is believed to reach 1 million tons during 1978.
It is claimed to be the world's only research institute in this field. All mines have anti-fire protection equipment capable of putting out a fire at source. Provision is also made for automatic and portable methane detectors and indicators. In most mines where hazardous gas exists the methane control systems switch off the electricity when quantities of the gas have been detected. 29 The State of the Industry Feed 0-300 mm Sizing (Screens) 0-25 mm 25-300 mm Heavy Media Separation Fines Refuse Dewatering (Screen) Heavy Media Separation Sulphur Pyrite Clay Clean Coal Product Dewatering (Screen) Unconditioned Suspension to Regeneration Dewatering (Screen) Sulphur Pyrite V-4 Clay Crushing and Grinding I 0-3 mm Rinsing and Dewater ing (Spiral Classif ier) Conditioned Suspension to Circulation Sulphur Pyrite (To sulphuric acid production) Fig.
Provision is also made for automatic and portable methane detectors and indicators. In most mines where hazardous gas exists the methane control systems switch off the electricity when quantities of the gas have been detected. 29 The State of the Industry Feed 0-300 mm Sizing (Screens) 0-25 mm 25-300 mm Heavy Media Separation Fines Refuse Dewatering (Screen) Heavy Media Separation Sulphur Pyrite Clay Clean Coal Product Dewatering (Screen) Unconditioned Suspension to Regeneration Dewatering (Screen) Sulphur Pyrite V-4 Clay Crushing and Grinding I 0-3 mm Rinsing and Dewater ing (Spiral Classif ier) Conditioned Suspension to Circulation Sulphur Pyrite (To sulphuric acid production) Fig.