Author: C. Twigge-Molecey, D. Berkley
The Minerals, Metals & Materials Society, 1991
Abstract
As emission constraints for metallurgical plants become more difficult to meet, control of major, multi-vessel, flue systems become more critical. Control instabilities can result in significant loss of system capacity or emissions to the environment. This paper will discuss the use of dynamic simulation techniques to optimize both the design and control strategies for these systems.
A significant safety hazard is associated with pressure excursions from process upsets or equipment failures. Pressure rise rates of up to 10 kPa/sec can occur. These cannot be followed by conventional controls. Fail-safe high speed venting is required to protect both the furnaces and operating personnel. Design options, sizing techniques and practical problems are discussed.
