COKE

Control and uniformity at starting-up

We started our activities in coke plants with the drying and heating for starting up the ovens. At first, they were small-scale operations. This scenario changed since 2006, and today we count the drying and heating of more than 1,000 ovens, by-product and heat-recovery. We thus consolidated ourselves as the most experienced company in Brazil for the thermal input to the start-up of coking plants, with emphasis on the uniformity of temperatures and consequent softness of expansion provided.

In the same year of 2006, we established a technological partnership with Glass Service, which is based in the Czech Republic. Since then, we have been licensed to use its computational fluid dynamics software, CFD, with which, in our technology division, Æstus, we conduct studies of heat distribution and expansion levels of coke ovens, simulating the heating conditions.

COMPREHENSIVE MONITORING

For full control over drying, heating and expansion, we work with comprehensive monitoring. In a heat-recovery battery of 40 furnaces, for example, while monitoring 128 thermocouples, we delivered a profile of high thermal uniformity and, in a by-product battery of 55 ovens monitored with 742 thermocouples, we smoothly attended to the designer's specification, obtaining a 5.7° C difference between adjacent furnaces against a tolerance of 35.0°C at temperatures above 650°C.