Forehearths Process Control - Infrared Analysis System

The fact that physical properties of the glass as a function of temperature makes forehearth control difficult. Forehearth control is particularly important in the container glass industry where control of not only the temperature but also constant gob weight is critical. Proper control reduces the number of rejects, which in turn increases productivity and saves energy (Worrell et al., 2008. p.70).

In a solution developed by XPAS vision in Netherlands, infrared analysis system analyzes the product quality before leaving the forehearth allowing real–time control to maintain continuous product quality. The system can be combined with automatic control of the gob weight, to further increase productivity (Worrell et al., 2008. p.71).

Development Status Products
Commercial
Glass

Forehearths Process Control - Infrared Analysis SystemCosts & Benefits

Parent Process: Conditioning and Forming
Energy Savings Potential

Typical energy savings are estimated at 2-3% of total plants energy use through reduction of the reject rate. A plan in Netherlands was able to reduce fuel consumption of the plant by 5% (Worrell et al., 2008. p.71).

CO2 Emission Reduction Potential
Costs

The installation of this system provided a plant in the Netherlands with total annual benefits of over $3 million/year, of which $200,000 was due to energy savings (Worrell et al., 2008. p.71).

Forehearths Process Control - Infrared Analysis System Publications

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71