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Siemens Develops New Sublance for LD Converters
04/09/2012 - Siemens VAI Metals Technologies offers LD (BOF) steel works operators the Simetal Sublance 2.0, a new lance system for temperature and oxygen measurement, sample-taking, and bath level detection.
Siemens VAI Metals Technologies offers LD (BOF) steel works operators the Simetal Sublance 2.0, a new lance system for temperature and oxygen measurement, sample-taking, and bath level detection. The system consists of a vertically mobile sublance, including a lance car and a special probe magazine. It features a radar-based measuring system for fast, precise positioning of the lance, which can achieve measuring cycle times of less than 110 seconds.
The new Simetal Sublance 2.0 from Siemens is designed for installation above the converter cooling stack. Measurements and samples are taken through a port in the stack. The drive system of the sublance is designed on the same principle as that of an elevator. Two redundant steel ropes fed over non-slip traction sheaves connect the vertically mobile lance car to a counterweight. This is slightly heavier than the lance traveling device, so the device can be returned to its starting position in the event of a power outage or drive malfunction.
The new Simetal Sublance 2.0 from Siemens is designed for installation above the converter cooling stack. Measurements and samples are taken through a port in the stack. The drive system of the sublance is designed on the same principle as that of an elevator. Two redundant steel ropes fed over non-slip traction sheaves connect the vertically mobile lance car to a counterweight. This is slightly heavier than the lance traveling device, so the device can be returned to its starting position in the event of a power outage or drive malfunction.
The lance car is equipped with multiple, adjustable rollers that ensure smooth motion along the guiding rails. The sublance itself is attached to the lance car by a quick coupling device. The lance, together with the water supply, is automatically coupled by means of its own dead weight. The lance is positioned by means of a measuring encoder on the drive and a noncontact radar system. No additional position encoders are required on the rails themselves.
Siemens has developed a new magazine solution for handling and holding the probes. The magazine has up to five storage boxes, each of which can hold 20 probes for long-term operation. Each box indicates the precise number of probes it contains, and sends a message to the control center when this falls below a settable limit.
A supplementary solution for automated calibration of the measuring system is currently under development. The Simetal Sublance 2.0 can also be combined with the Siemens LiquiRob robot system.
The Siemens Industry Sector (Erlangen, Germany) is a leading supplier of innovative and environmentally friendly products and solutions for industrial customers. With a global workforce of more than 100,000 employees, the Industry Sector comprises the divisions Industry Automation, Drive Technologies and Customer Services as well as the Business Unit Metals Technologies.
The Metals Technologies Business Unit (Linz, Austria), part of the Siemens Industry Sector, is one of the world's leading suppliers of plant construction and engineering in the iron and steel industry as well as in the flat rolling segment of the aluminum industry. The Business Unit offers a comprehensive product and service portfolio for metallurgical plants and equipment as well as integrated automation and environmental solutions covering the entire lifecycle of plants.
