Belts have adjustable distance from operator’s panel, up to 250 mm with motors, screw jacks and display in operator’s panel
Top belt supported with magnets running the length of the oven
Speed: 1.5 to 15 meters per minute
(2) belt drive systems, using large driven rolls
(2) belt tensioners, using pneumatic pistons
(2) belt guidance systems, using sensors and motors
Air System
(3) air fans driven by frequency converters, with adjustable steeples for forcing air throughout the web and through the burner; (1) fan for each section
Air plenums from top and bottom to equalize surfaces
Air flow inversion possible in each section (bottom to top or top to bottom)
Hand operated baffles for closing air on the side of the web to increase efficiency
Independently adjustable smoke extraction system in each section
Air channel with net filters (can be cleaned without opening oven)
Heating and Burners
Burners: 3 gas burners, each 250,000 kcal per hour, modulating action, PID controlled, 1 burner in each section, each individually regulated with temperature up to 220 °C
Burner fuel: natural gas, minimum pressure 50 millibar at burner, temperature precision +/- 1.5%
Cooling
(2) fans, length 3,000 mm, double belt for final calibration
Fans with frequency converter to adjust airflow levels, controlled at operator’s panel, system to close air on the side of the web to protect efficiency
Construction and Access
Large inspection doors on each side of the oven
Insulated with pressed-rockwool filled sandwich panels
Dimensions and Status
Floorspace required, total width: 4,050 mm (from edge to edge), each side has 700 mm projection for burners and fans
Status: currently running, still available as of 5/19/20
Specifications
Capacity: 750,000 kcal/h
Dimensions: 15500mm length
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