Pyrometallurgy: Roasting, Smelting, Refining & Electrowinning

Pyrometallurgy: Roasting, Smelting, Refining & Electrowinning2017-04-21T02:33:06-04:00
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Zn roasting (2 replies and 1 comment)

Zhanbolat
1 month ago
Zhanbolat 1 month ago

Hi guys!

Does anybody reccomend an effective way to grind the zinc calcine after roasting? Or how you reccomend control the particle size of calcines in and after roaster to avoid problems in further leaching. 

Here we have air separation and then there are ball mils to grind the larger pieces but it takes time and unproductive.

P.S. if you have some advices about zinc sulfide concentrate blending for the fluidized bed roasting, I would be glad to hear it

K@TTU
1 month ago
K@TTU 1 month ago

Normally, the calcine product from fuildized bed roaster overflow ,WHB dust go to the cooling drum cum ball mill , if you have find any coarser in content , may  treat classifier  cum we ball mill in NL underflow thickner , may avoid the coarse fraction improve the recovery

Zhanbolat
1 month ago

Thank you! I got it. got it. But what kind of ball mill you could recommend? we have three roasters, when two roaster work it somehow can handle it. But in case of 3 roasters ball mill has problem. Capcaity is 10 t/h but I guess, actually it less.

Zhanbolat
1 month ago
Zhanbolat 1 month ago

Okay, got it. But what kind of ball mill you could recommend? we have three roasters, when two roaster work it somehow can handle it. But in case of 3 roasters ball mill has problem. Capcaity is 10 t/h but I guess, actually it less. 

 

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