Experimental Study on Removal of Ultrafine Rock Powder in Diamond Drilling Based on Supermagnetic Separation Technology
In order to solve the difficult problem of removing ultrafine rock powder from diamond drilling washing fluid,the removal effect of ultrafine rock powder based on super-magnetic separation technology was investigated.The removal experiments of ultrafine rock powder in different types and amounts were designed,and the optimal dosing scheme was obtained by comparing the removal rate of ultrafine rock powder and the recovery rate of magnetic seed.The experimental results show that adding 0.5％o aluminum sulfate in 3％o concentration of partially hydrolyzed polyacrylamide solid-free washing solution can achieve the best rock powder removal effect,with 96.76％ultrafine rock powder removal rate and 96.03％magnetic seed recovery rate.Pearson correlation coefficient analysis proved that there was a positive correlation between the removal rate of ultrafine rock powder and the recovery rate of magnetic seed in the appropriate dosage range.The above research results have laid a certain foundation for the successful application of the super-magnetic separation technology in the removal of ultrafine rock powder from the diamond drilling process washing fluid
diamond drillingflushing solutionultrafine rock powdersupermagnetic separationPearson correlation coefficient analysis
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维普
