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The regular floating beneficiation about fine silt method
Date:2014-12-23 01:13 From:Bailing Machinery Author:admin
In the flotation practice, in order to overcome the deterioration of fine mud flotation process, and eliminate the harmful effects of fine mud, often adopt the following measures.
1. When the fine mud is too much, adding dispersant to reduce its influence
Generally, we can add six partial sodium phosphate sodium silicate can join. Dispersant is pure electrolyte, its role is increasing fine mud on the surface of the electric.When fine mud close to each other, mutually exclusive, due to the same electrical make slime dispersing effect, prevent fine mud nonselective poly group.
Disperser method is simpler, less applicable to mud.But, this method still can not fundamentally solve the thin mud caused by poor selectivity, large dosage of reagents and other shortcomings, so often need to strengthen the selection operation in production practice.
2.Removing slime in advance before flotation
Preliminary desliming and there are two ways: desliming flotation desliming and machinery. Flotation desliming is to use a small amount of foaming agent and collector to a portion of the slime first, and then carries on the coarse particle flotation.Mechanical desliming is in front of the flotation with classifier (e.g., hydrocyclone) for removing part of fine mud.The granularity of general desliming in 10.20 microns.Graded mainly by classifying equipment performance.After desliming, also can improve the effect of the coarse particle flotation.The main problem is fine mud is difficult to handle, if fine mud little useful mineral content can be abandoned, but often the useful minerals grade and ore in fine mud, if discard it makes fine metal loss in vain in the mud.
3. The mud separation
Fine mud single flotation process requirement:
A. appropriate USES longer flotation time, according to data reported, less than 10 micron grade of flotation time was 40-60 minutes;
B. high mixing (up to 60% - 70% of the pulp density) and low concentration flotation (generally below 20%);
C. segmented, increase dosage of collector, reduce the dosage of foaming agent;
D. your, the tiny bubbles and hearing the pulp flow weakening rise.
In actual production, to meet the technological requirements of fine mud flotation is difficult, so fine mud flotation index is not high.While processing the above fine mud methods adopted for the production, but did not resolve the special process of fine mud flotation.From the direction of view of the present study, to improve the fine particle flotation speed by two ways: one is the increase of particle size of fine mud flotation;Second is to reduce the flotation bubble size.
Henan Bailing Machinery manufactures various kinds of beneficiation turn-key project and equipments, such as flotation machine, magnetic separator, jigging machine, shaking table, etc. We are commited to supply with the best quality and reasonable price products.
1. When the fine mud is too much, adding dispersant to reduce its influence
Generally, we can add six partial sodium phosphate sodium silicate can join. Dispersant is pure electrolyte, its role is increasing fine mud on the surface of the electric.When fine mud close to each other, mutually exclusive, due to the same electrical make slime dispersing effect, prevent fine mud nonselective poly group.
Disperser method is simpler, less applicable to mud.But, this method still can not fundamentally solve the thin mud caused by poor selectivity, large dosage of reagents and other shortcomings, so often need to strengthen the selection operation in production practice.
2.Removing slime in advance before flotation
Preliminary desliming and there are two ways: desliming flotation desliming and machinery. Flotation desliming is to use a small amount of foaming agent and collector to a portion of the slime first, and then carries on the coarse particle flotation.Mechanical desliming is in front of the flotation with classifier (e.g., hydrocyclone) for removing part of fine mud.The granularity of general desliming in 10.20 microns.Graded mainly by classifying equipment performance.After desliming, also can improve the effect of the coarse particle flotation.The main problem is fine mud is difficult to handle, if fine mud little useful mineral content can be abandoned, but often the useful minerals grade and ore in fine mud, if discard it makes fine metal loss in vain in the mud.
3. The mud separation
Fine mud single flotation process requirement:
A. appropriate USES longer flotation time, according to data reported, less than 10 micron grade of flotation time was 40-60 minutes;
B. high mixing (up to 60% - 70% of the pulp density) and low concentration flotation (generally below 20%);
C. segmented, increase dosage of collector, reduce the dosage of foaming agent;
D. your, the tiny bubbles and hearing the pulp flow weakening rise.
In actual production, to meet the technological requirements of fine mud flotation is difficult, so fine mud flotation index is not high.While processing the above fine mud methods adopted for the production, but did not resolve the special process of fine mud flotation.From the direction of view of the present study, to improve the fine particle flotation speed by two ways: one is the increase of particle size of fine mud flotation;Second is to reduce the flotation bubble size.
Henan Bailing Machinery manufactures various kinds of beneficiation turn-key project and equipments, such as flotation machine, magnetic separator, jigging machine, shaking table, etc. We are commited to supply with the best quality and reasonable price products.
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