Abstract:

Compared with rake thickener covering a large area but having low concentration efficiency and old-fashioned lamella thickener prone to clogged up in operation and difficult to clean up, lamella thickener operating in tilting slender up-flowing developed by Yunnan Keenly New Materials Co. Ltd. (former Kunming Metallurgical Research Institute) has simpler structure, more convenient operation and overcomes their disadvantages. The device’s internal inclined plates are made of modified polypropylene. They can avoid coal slime agglomeration on the plates’ surface and have long service life. The industrial test results show that tilting slender up-flowing lamella thickener isn’t easy to clogged up during operation, consumes lower energy and gets higher underflow concentration. Its unit area processing capacity is 3 times larger than that of Φ28m rake thickener.

Key words: tilting slender up-flowing lamella thickener, industrial test, coal slurry concentration