ThyssenKrupp Steel Europe Builds Dedusting System
11/17/2010 - ThyssenKrupp Steel Europe has begun a project in Duisburg that it says will reduce particulate emissions by 450 tonnes per year. The company is building an additional filter to capture sinter plant dust. Completion is scheduled for October 2011.
ThyssenKrupp Steel Europe has begun a project that it says will reduce particulate emissions by 450 tonnes per year. The company is building an additional filter to capture sinter plant dust. The foundations have already been completed and building work on the steel frame for the 32-meter-tall building has begun. Completion is scheduled for October 2011.
ThyssenKrupp Steel is investing 30 million euros in the project. The investment is part of a comprehensive filter system for the sinter belts. Exhaust air arising directly at the belts is extracted and currently is cleaned by high-voltage electrostatic precipitators; the system cleans around a hundred billion cubic meters of gas a year. In the new system under construction, cleaned air is additionally passed through a fabric filter, which is said by the company to reduce the particulate-matter content per cubic meter exhaust air by another more than 50%.
ThyssenKrupp Steel Europe recently installed state-of-the-art control technology to improve the efficiency of older high-voltage electrostatic precipitators. The mixing drums are now also being connected to the dedusting system.
The company expects a reduction in particulate matter of around three micrograms per cubic meter air.
The new filter system is being built on a roughly 650-square-meter site directly next to the sinter belts. The fabric filter has a surface area of around 13,640 square meters. It consists of almost 14,000 tubes through which the exhaust air is sucked. The dust collects on the walls of the tubes. The fan that sucks the air through the system at a speed of up to 22 meters per second is powered by an 1800-kilowatt motor.
ThyssenKrupp Steel Europe notes that, under a voluntary particulate reduction program, it has introduced a total of 41 measures to cut particulate pollution in recent years.
