Floatation experiment is general by grind mine, size mixing, floatation (blow bubble) comprise with an operation such as product processing, master these adroitly to manipulate a technology, ability makes experiment on the rails assures the accuracy of the experiment.
1. grinds mine. First ball mill idling a few minutes are cleaned clean, join the place that grind mine to want the one part of water next, rejoin core sample and the drug that should add in grinding mine, add another water of remnant again. The rotate speed that when grinding mine, should notice to grind mine machine is normal, notice whether sound is normal even, whether grinding in order to judge ball or club move normally inside machine, want accurate control to rub mine time. When bend gives ore pulp, want to receiving the put away on mine container to receive ball sieve, rinse with thin rapid flow wear machine wall and bottom, ore pulp in the irruptive container that accept ore deposit, mention the sieve that receive a ball, rush with urgent water clean. Will grind machine flood water finally, build good shell with equipment reoccupy.
When cleaning, should notice water quantity cannot pass much, lest floatation chamfer is not accommodated,fall. If water excessive, when clear water can be being taken out to serve as floatation with ball suction ear or siphon after clarify fill add water.
2. agitate size mixing. The purpose of agitate is to make mineral grain in suspension, make mine bead and bleb achieve effective contact. Size mixing is mix after adding drug the agitate before air, the purpose is make drug disperses equably and with mine bead action. The accretion of aqueous solution drug is usable move fluid canal, graduate, measuring glass. Be not water-solubility drug, wait like 2 oil, oleic acid, use injector direct drop is added, but should determine beforehand the real quality of every drug, its method is in one small beaker (quality is foregone) inside drop tens of drop drug, after weighing out its quality, divide again with dripping number is weighed every drops namely.
3. floatation blows bubble. Observe according to floatation process fragile substandard of bubble size, color, false or true, pliable but strong watchs a phenomenon, through adjusting blowing agent dosage, fill size of tolerance, mine face discretion and strict operation, controallable foamy quality and blow a quantity. Fill tolerance to rely on to control size of open of a powerful person and floatation engine rotate speed to undertake adjustment, after filling tolerance to decide, answer changeless, lest affect,experiment can compare a gender. Ply of layer of bubble of lab floatation machine is controlled commonly in 25-50mm, ore pulp cannot spill over from floatation chamfer by oneself. Because foamy is blown ceaselessly,go out, face of ore pulp fluid drops, should make sure foamy is blown continuously piece, should fill ceaselessly add water. If value of ore pulp Ph is right floatation impact is not big, can fill add tap water. Otherwise, should deserve to fill equally with value of ore pulp Ph beforehand add water. Adhere is in floatation chamfer is mural bubble, often must rinse it into groove. When beginning to blow bubble with the end, must determine and record the Ph value of ore pulp and temperature. After floatation ends, teem gangue, wash floatation machine clean.
4. product is handled. The product of floatation should undertake dehydration, drying, metage, sampling does chemical analysis.
If the product is very fine or contain mud much, can add flocculating agent to sedimentation in order to quicken. When stoving vulcanization mine, temperature wants control to be under 110 ℃ , oxidize in case, make product grade produces change.
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