Hebei Messi Biology Co., Ltd. stated that the recovery of cobalt metal from the cobalt sulfate solution system generally adopts the production of cobalt hydroxide products by adding magnesium oxide slurry. Whether the concentration of magnesium oxide slurry remains stable is crucial to the quality of products obtained from the cobalt precipitation industry. A high concentration of magnesium oxide slurry will increase the content of impurity magnesium in the cobalt product, affecting the product quality. A low concentration of magnesium oxide slurry will reduce the cobalt recovery rate. In the past, magnesium oxide slurry was generally prepared by manually controlling the amount of magnesium oxide added and manually switching valves to control the amount of new water added. There are problems that manual operation easily causes fluctuations in the concentration of magnesium oxide slurry and it is difficult to quickly adjust the concentration in time according to production needs.
A magnesium oxide quantitative slurry mixing device for cobalt precipitation production includes: a screw feeder, a magnesium oxide slurry mixing tank, a magnesium oxide slurry delivery pump and a cobalt precipitation reaction stirring tank; the top of the magnesium oxide slurry mixing tank is provided with a feed port, the lower part of the side wall is provided with a discharge port, the top of the magnesium oxide slurry mixing tank is connected to the lower end of a new water pipe, the new water pipe is provided with an electric valve, the feed port of the magnesium oxide slurry mixing tank is connected to the discharge end of the screw feeder through a pipeline; the liquid inlet of the magnesium oxide slurry delivery pump is connected to the discharge port of the magnesium oxide slurry mixing tank through a pipeline; the upper end of the cobalt precipitation reaction stirring tank is provided with a liquid inlet, and the liquid inlet of the cobalt precipitation reaction stirring tank is connected to the liquid outlet of the magnesium oxide slurry delivery pump through a pipeline. The utility model can realize the uniform addition of magnesium oxide, control the amount of magnesium oxide added, and is conducive to the preparation of magnesium oxide slurry according to the requirements of cobalt production.