Recent experience with low-energy drying of backing bricks
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»1 Air and heat sources for modern chamber dryers
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»2 Auxiliary fresh-air fan with damper and stub...
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»3 Conceptual design of a continuous dryer...
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»4 A typical low-energy drying curve
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»5 Comparison between a fast dryer and a rotary...
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»6 Basic module for fast drying
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»7 Schematic diagram of combined low-energy and...
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»8 Cross-sectional view of the EcoDry low-energy...
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»9 Cross-sectional view of the XStream fast dryer,...
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»10 Drying rate as a function ambient-air...
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»11 Regional differences in climate
The practical implementation of low-energy drying at several different brickworks is featured here. Also presented is a fast-drying process with which to implement low-energy drying in new dryers with short drying times and acceptable dimensions. Finally, a profitability analysis shows that the planning for any new dryer(s) should always include an ambient-air drying component.
1 Introduction
If you ask a brickyard owner from South Africa how much it costs to dry bricks, he will tell you how much he has to pay a lot of people to cover the bricks with protective sheeting every evening.
› Energy expenditures? Forget it!
The potential for saving money on thermal energy by drying with ambient air is enormous [2]. Brick people in German-speaking countries, too, are developing a keen interest in low-energy drying. Already, three backing brick plants there are using chamber dryers with at least one low-energy drying chamber. At one plant, the brand-new drying chambers were...
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