The process essentials and industrial test of ultrasonic imm
2020-10-16 10:12Introduction：The process essentials and industrial test of ultrasonic immersion The ultrasonic assisted leaching does not change the normal process of cyanidation gold extraction, but only adds a set of reinforcement reaction system before conventional
The process essentials and industrial test of ultrasonic immersion
The ultrasonic assisted leaching does not change the normal process of cyanidation gold extraction, but only adds a set of reinforcement reaction system before conventional cyanidation leaching, so that all the slurry entering the system passes through the reinforcement reaction system, and then the normal leaching is conducted.
The strengthening reaction system mainly includes the strengthening reaction kettle and S-type generator.The strengthening reaction kettle is composed of R - type generator, A - type generator, steam - water separator and kettle.Its function is to increase the content of dissolved oxygen in the slurry through jet, to make the aeration distribution uniform, to make the ore particles produce self-grinding, so as to destroy the saturated layer and passivating film on the solid surface and increase the diffusion rate.The S-type generator is composed of high-power single-head ultrasonic generator, high-power energy converter and amplitude converter.Its function is to cause local erosion or denudation on the solid surface through the impact micro-jet produced by ultrasonic wave, improve the mass transfer effect and increase the reaction activity on the solid surface, so as to increase the reaction speed.
The hot water carbon in pulp plant of Dongfeng Fold Mine in Chifeng city, Inner Mongolia underwent technical transformation from November to December, 1990, with a production scale of 100t/d.There are two kinds of leaching raw ore. One is the raw ore mined by the mine, which is called raw ore. Another kind of mixed alloy ore is mixed with this ore by 1:1, which is called mixed ore The experimental results showed that the leaching time was shortened from 20 ~ 22h to 24 ~ 30min, and the reaction speed was increased 40 times for row ore.The leaching rate increased by 4% ~ 5%.for mixed ore, the leaching time decreased by the same extent, and the leaching rate increased by 21% ~ 24%.The results show that the effect of ultrasonic assisted leaching on refractory ore is more remarkable.
