Recent experience with low-energy drying of backing bricks

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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