KALOCER oxide ceramics protect pipes against zinc concentrate 2018/11/27 Our customer extracts and processes approximately 150 thousand tonnes per year of zinc and lead ores from their own mine. Zinc alloys are used in the smelting and automotive industries as well as for the continuous zinc- plating of products in the processing industry. In the course of refining, zinc oxide (ZnO) is conveyed at 400°C via pneumatic pipes and pipe bends from the sphalerite roasting plant to the leaching unit. ZnO is an extremely abrasive material and causes high friction wear, especially in the previously used cast iron pipe bends and piping immediately beyond them.Along with short low service life, the customer was also dissatisfied by the high weight of the piping components. Kalenborn lined the pipes a

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