KYF flotation machine is not only a general air mixing type flotation machine of good flotation technical index and low energy consumption, but also can be horizontal layout to reduce the beneficiation process complexity and infrastructure investment. KYF type flotation machine is not provided with self-priming function and is usually used together with XCF flotation machine, which is widely used in non-ferrous metal, black metal and chemical industry, and have produced remarkable economic benefits.