Ferrochrome SAF
Tenova designs, engineers and supplies high capacity submerged arc furnaces for producing ferrochrome. The furnaces can be open, semi-closed or closed. Depending on the application, the use of bag filters, wet scrubbers or dry scrubbers can be incorporated to remove particulates from the furnace off gas.
Overview
Tenova Pyromet is a leading designer and supplier of high-capacity electric submerged-arc and brush-arc smelting furnaces and complete smelting plants for the production of ferroalloys, base metals, slag cleaning and alloy refining.
Technical data
- Semi-closed or closed furnaces with capacity up to 65MW
- Annual production capacity depending on raw materials specifications.
- Can produce charge chrome or high carbon ferrochrome.
- Option of venturi scrubber system or bag filter system for cleaning of off-gas.
- Integration of Tenova Multiple Pre-heater technology to reduce energy consumption
- The complete material handling, including batching plant can be designed
- A hot metal tapping solution that meets customer needs
Innovation
Tenova specialises in Submerged and brush Arc Furnace design for smelting projects which provides continuous and efficient operations. Tenova 's leading edge technology and depth of experience is displayed by the fulfillment of our passion for continuous improvement and providing the best available technology to our customers.
Fundamental process knowhow enables each furnace design to incorporate:
Project process design, incorporating impact of customer specific raw material composition; this ensures that the systems such as the batching plant, off-gas cleaning system is designed with flexibility required to achieve stable peak power input and hot metal quality regardless of input material chemical compositions.
Tenova projects incorporate latest technologies such as:
- Multiple Preheater to reduce energy consumption
- Efficient furnace off gas cleaning systems
- Tenova AutoFurn® automatic furnace controller software
Safety
Safety is at the core of Tenova’s designs. Not only is physical barriers considered for moving areas, intelligent instrumentation is used to constantly monitor ambient air quality in the furnace building, and complex algorithms applied to determine potential upset conditions and proactively react.
Robotic technologies are also being implemented to remove workers from potentially risky areas.
Access control is an integral design of the furnace building, to ensure no uncontrolled access to potentially hazardous areas.
Automation
The Tenova AutoFurn® is an intelligent software system that provides an additional level of automation, above the SCADA and PLC.
AutoFurn® is designed to be user friendly. It improves the efficiency of furnace operations by obtaining a higher power input to the furnace and maintaining stability and balance in teh furnace. It is suitable for new and can be easility retrofitted into existing furnaces. AutoFurn® can be configured to suit different ferroalloy processes, as well as other reduction processes such as base metals, mineral wool and platinum group metals
Data is presented to operators via responsive human machine interfaces, including reports and trends, accessed from compatible web browsers. This also enables the customer to make us of the innovative Tenova PyroMobile application from alternative locations.
Environment
Tenova uses cutting edge technology to ensure that environmental protection and compliance with legislation are integrated into the design of each smelting plant. Tenova furnace off-gas scrubbers used with closed furnaces and bag filters used with semi-closed and open furnace ensure that gases from smelting processes are cleaned of particulate matter before the cleaned gases are vented to the atmosphere.
Where needed, the furnace is fitted with a secondary fume evacuation system that captures fugitive emissions around the furnace. Tenova recommends that a suitable Tenova gas cleaning solution be used to ensure optimal furnace performance.
Digital
Tenova’s AutoFurn® Furnace Controller is designed for real-time precise process/operation and monitoring.
Related Solutions
South Africa & RoW
Andre Esterhuizen
General Manager - Sales and Marketing, Tenova Pyromet
