Fluorite ore dressing plant example (4)
(2) Process flow: Hong'an fluorite ore is mined underground, with a particle size of 400~0mm, and is classified by two stages of screening. A section of fixed grid sieve, sifting out a large ore of +50mm, less than 50mm of ore, and then divided into three sizes of 50~20mm and less than 20mm by 1700×4000 seat vibrating screen (self-made), respectively Ship to the ground hand picking area for manual selection. The above process is basically open-air operation, the hand selection process is shown in Figure 4; the hand-selected block concentrate quality is shown in Table 10. The hand-selected lean ore is crushed to less than 15mm by two-stage closed-circuit crushing process, and two-stage continuous grinding is used. The final grinding fineness is less than 0.074mm and the content is more than 75%, which satisfies the flotation requirement for obtaining high-quality concentrate. The flotation is a rough, two sweep, six selection process, and the six selected middle mines are returned to the rough selection. The return method is six selected medium mines flowing to the middle mine concentrate pool, and the 100mm rubber pump is used. As for the Φ24m medium ore concentrator of a certain height, the slurry is concentrated to a concentration of 25% to the rough selection. The role of concentration, one is to reduce silicon, the second to maintain a stable ore, reduce the impact of slurry fluctuations on the quality of concentrate. At the same time, the grinding process has the flexibility of re-grinding or refining the concentrate. The process flow is shown in Figure 5. The mineral processing technology indicators are shown in Table 11. The mineral processing unit consumption indicators are shown in Table 12. The main equipment is shown in Table 13. Liquid Packaging Machine,Automatic Liquid Packaging Machine,Water Juice Packaging Machine,Shampoo Seal Packing Machine Jinan Guoqiang Machinery CO,.ltd , https://www.jinanpackaging.com