Improve the significance of the flotation speed
The flotation rate reaches a certain recovery (or flotation unit production capacity), the flotation time.
Improve recovery and reduce flotation time, improve flotation machine efficiency is to increase the flotation rate. Improve the flotation rate is dressing production should pay attention to and research work.
The main measures to improve the flotation rate:
1) a reasonable adjustment prescription, ball mill operation specifications with particular attention to the amount of foaming agent. In general, a slight increase in foaming agent will promote the flotation rate. It must be noted: excessive amount of foaming agent to reduce the selectivity in the selection of collector dose should pay attention to the amount of foaming agent and not excessive.
2) to the extent appropriate, horizontal sand mill manufacturer to increase the flotation machine impeller speed and reduce the trough depth, the impeller and cover the gap narrowed to increase at best measures available to promote the flotation rate.
3) as soon as possible so that the pulp by flotation. Series slot than to open the associated slot, but also conducive to enhancing the flotation rate.
4) the selection of slot size must be appropriate. In general the selection of slot size can not be too much. The selection of the trough is too large, so that the slurry in the tank for too long residence time. Concentrate foam will not only poor, and also reduced the flotation rate.
5) control of the appropriate concentration of the slurry, you can get the maximum flotation rate.
the concept of positive flotation and anti-flotation
General flotation and more useful minerals that float into the foam product, gangue minerals remain in the pulp, usually called the positive flotation. But sometimes shift the gangue minerals are floating into the foam product useful minerals remain in the non-foam product, this flotation is called the reverse flotation.
what is the flotation and flotation?
If the ore contains two kinds or more than two kinds of useful minerals, the flotation method there are two kinds, one is useful minerals in turn one by one to elect a single concentrate, this method is called flotation; another is jointly selected by the useful minerals for the mixed concentrate, and then no longer useful minerals in the mixed concentrate a sorting open, this method is called flotation.
inhibitors of Pharmacy role
The inhibitor Pharmacy dichromate, lime, sulfuric acid, zinc, cyanide, sodium silicate, sodium sulphide, One cellulose.
Dichromate can be formed in the surface of the galena insoluble hydrophilic lead chromate film is a good inhibitor of galena;
Lime is a good inhibitor of pyrite;
Zinc sulfate and sodium sulfide and other agents used in conjunction, can even sphalerite;
Sodium sulfide is a sulfide ore inhibitors, such as inhibition of galena, quartz, etc.;
Cyanide can inhibit sphalerite, pyrite and copper minerals;
Sodium silicate silicate and aluminum silicate minerals have a strong inhibitory effect. Such as inhibition of beryl, spodumene, feldspar, mica;
One cellulose the carbonaceous alkaline gangue, an effective inhibitor of the comprehensive debris and slime.
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