FEEDER FOREHEARTH PRINCIPLE AND OPERATION (INTRODUCTORY TRAINING)

23 - 24 September 2025
14:00 - 17:30 CET
EINDHOVEN (NL) AND/OR ONLINE

As the fined glass melt exits the furnace through the throat, it enters the conditioning area. Many glass products, such as containers, glassware, and glass wool, are thermally conditioned in the furnace. The forehearth’s purpose is to supply homogeneous glass at the correct temperature to the outlet. Colored glass can also be produced inside forehearths by combining frits directly into the melt. The glass delivery must be well-controlled in stable operation, before and after a job change. This course provides an overview of the various parameters available for optimal feeder control.

Contents
• General principle of feeder and forehearth system
• Thermal heat transfer and temperature homogeneity
• The impact of gas heating and electrical boosting
• Devitrification at the cold spots
• Mixing and coloring
• Equipment and measurement devices
• Control and automation

After the training you will:
• Know which levers impact the behavior to deliver a homogeneous glass at the proper temperature
• Optimize job changes
• Monitor feeder behavior with all available measurements
• Recognize and take action in the event of quality issues related to the forehearth

Training methods
We offer a blended learning approach by mixing e-learning, lectures, open discussions, exercises, and case studies in teams or individually. The number of participants per course is between 10 and 25 to maximize your learning experience. Participants always receive the presentations and a training certificate.

Level of seniority
This course is meant for novice to junior professionals who would like to improve their understanding and apply the knowledge in practical cases.

Trainers
Christian Räbiger
Christian Räbiger studied process engineering at the Technical University of Freiberg, specializing in glass, ceramics, and building materials. He joined the technology department of Sorg for 8 years where he designed, modeled, and optimized multiple glass furnaces to improve the energy demand and production quality. He also offered troubleshooting and technical support. He then moved to Swarco for 4 years. His activities included planning furnace reconstructions and new furnaces, R&D, and project work. In 2023, he joined CelSian as technical director for the EU area.
Arca Lyiel
Studied metallurgical and materials engineering in Ankara (Middle East Technical University) and obtained her PhD from Istanbul Technical University in 2009. She worked as furnace designer and glass properties manager for Şişecam improving, trouble-shooting or developing new glass formulations for different businesses and products (float, container, glassware, e-glass and technological glasses). She joined CelSian as laboratory manager, furnace operations and trainer in 2024.
Price Training costs € 1.200,- per participant.


Price excludes tax and duties.
The 6th participant from the same company can join for free.
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