Floatation agent of fine-grain-size middlings and application of floatation agent
A flotation agent and fine particle technology, applied in flotation, solid separation and other directions, can solve the problem of unsatisfactory separation results in crushing and sorting, and achieve the effect of reducing load, reducing pollution and ensuring tail coal ash content.
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Embodiment 1
[0045] A flotation reagent for fine-grained coal, the raw materials of which are as follows: α-terpineol 36%, heavy liquid paraffin 55%, alkylphenol polyoxyethylene ether 1.5%, methyl isobutyl Base methanol 1.9%, xylene 1.9%, polypropylene glycol 1.8%, sodium silicate 1.9%.
[0046] Such as figure 2 Shown, the concrete flotation process flow of the present invention is as follows:
[0047] S1. Feed the fine-grained medium coal 1 (raw material) with a particle size below 3mm into the mixing tank A through a feed pump (not shown in the figure) for slurry mixing, and produce fine-grained medium coal slurry 2 after slurry adjustment.
[0048] S2. Feed the fine-grained medium coal slurry 2 into the spiral separator B for spiral tailing operation, and produce high-ash gangue particles as the sorted tailing coal 3, and simultaneously produce and retain the sorted coarse and clean coal 4; The ash content of the sorted tailing coal 3 can reach about 70%, which is treated as gangue.
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Embodiment 2
[0055] A flotation agent for fine-grained medium coal. The raw materials of the agent are: 15.6% of n-butanol, 10.4% of n-hexanol, 34% of kerosene, 34% of diesel oil, 1.4% of alkylphenol polyoxyethylene ether, Methyl isobutyl carbinol 1.1%, xylene 1.3%, polypropylene glycol 1.1%, sodium silicate 1.1%.
[0056] Such as figure 2 Shown, the concrete flotation process flow of the present invention is as follows:
[0057] S1. Feed the fine-grained medium coal 1 (raw material) with a particle size below 3mm into the mixing tank A through a feed pump (not shown in the figure) for slurry mixing, and produce fine-grained medium coal slurry 2 after slurry adjustment.
[0058] S2. Feed the fine-grained medium coal slurry 2 into the spiral separator B for spiral tailing operation, and produce high-ash gangue particles as the sorted tailing coal 3, and simultaneously produce and retain the sorted coarse and clean coal 4; Sorted tailing coal 3 is treated as gangue.
[0059] S3. Put the ...
Embodiment 3
[0065] A flotation agent for fine-grained coal. The raw materials of the agent are as follows: n-octanol 20%, α-terpineol 16%, kerosene 28.5%, heavy liquid paraffin 28.5%, alkylphenol Oxyethylene ether 1.4%, methyl isobutyl carbinol 1.6%, xylene 1.3%, polypropylene glycol 1.5%, sodium silicate 1.2%
[0066] Such as figure 2 Shown, the concrete flotation process flow of the present invention is as follows
[0067] S1. Feed the fine-grained medium coal 1 (raw material) with a particle size below 3mm into the mixing tank A through a feed pump (not shown in the figure) for slurry mixing, and produce fine-grained medium coal slurry 2 after slurry adjustment.
[0068] S2. Feed the fine-grained medium coal slurry 2 into the spiral separator B for spiral tailing operation, and produce high-ash gangue particles as the sorted tailing coal 3, and simultaneously produce and retain the sorted coarse and clean coal 4; Sorted tailing coal 3 is treated as gangue.
[0069] S3. Put the sort...
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