Sichuan Danba Mica Mine Concentrator

The plant is located at the mouth of the mica mine in Danba County, Sichuan Province. The ore is a pegmatite type, which mainly produces flaky mica. The ore grade is 9.1 kg/m 3 , in which the mica is 44%, the particle size composition is 100-200mm, accounting for 32.3%, and 0-20mm accounting for 34.6%. After the large mica is sorted out in the ore, the fixed rod sieve (100 mm sieve hole) is fed into the Jaw Crusher , which is larger than the sieve pore size and enters the jaw crusher , and then fed into the vibrating sieve together with the sieved product. The sieve machine has two layers of screens, the upper screen is bar-shaped, the screen width is 20 mm; the lower sieve is square-hole screen, and the sieve hole is 20 mm×20 mm. After sieving, a total of three products are obtained, which are larger than 20mm, from which mica crystals and continuum are sorted, and the living body is manually broken and the mica crystals larger than 4cm 2 are sorted; less than the first sieve sieve, larger than the second The size of the sieve pores, from which the mica crystals and the continuum are sorted, and the living body is manually crushed to pick up mica crystals larger than 4 cm 2 ; the smaller than the second sieve size is concentrated as tailings. This method has a processing capacity of up to 10 t/h and a concentrate grade of over 99%. The ore recovery rate (mechanical screening) can reach 95%. The main equipment is: fixed rod sieve, 250mm × 500mm jaw crusher , vibration sorting machine, etc. The Danba mica ore dressing process is shown in the figure below.

The ball mills are used to grind materials into extremely fine powder for use in mineral dressing processes, paints, pyrotechnics, ceramics and selective laser sintering. The materials are ground by Coriolis forces, an interaction between frictional and impact forces, as a result of difference in speeds between the balls and grinding jars.
The rolls rotate on precision bronze bearings and are simultaneously driven by a pinion stand. The roll height is adjustable independently or simultaneously through a side-wheel screw down assembly. There are entry and exit tables with adjustable guides installed on the entry table. Emergency stop bars will be installed on entry and exit of mill. In addition, all controls are in a centrally located operating station.


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Shenyang Sanland Mining Equipment Manufacture Co., Ltd. , https://www.sanlandcrusher.com