Use of Oxygen with a High Carbon Content Shale Clay to Reduce Firing Energy in Brickmaking. Final Report

摘要

For a total installation cost of Pound 17,580, a demonstration project at Ibstock Brick (Nostell) Ltd. has achieved minimum savings of Pound 38,736/year with a simple payback period on this base figure of 5.4 months. Ibstock Brick's Nostell works had already installed oxygen injection equipment prior to the demonstration. Preliminary investigations were carried out and the kiln was fitted with two additional rows of oxygen lances, a variable speed control exhaust fan and a secondary cooling fan with motorised damper control. By increasing the use of oxygen and using high carbon raw materials, energy savings worth approximately Pound 22,000/year, savings on raw material costs worth Pound 23,456/year and increased throughput, providing potential for increased profitability were achieved. (ERA citation 12:025135)