Mercury paste distillation tank is the most commonly used mercury paste distillation equipment in small and medium mines.
Because the gasification temperature circle of mercury is lower than the melting point and boiling point of gold, the mercury and gold in mercury paste are separated by distillation method, and the solid mercury paste produced by gold separation plant can be distilled regularly. In order to fully separate mercury from mercury in mercury paste, many gold separation plants control the temperature of mercury vapor at 400-450 degrees, and raise the temperature to 750-800 degrees at the later stage of mercury vaporization for 30 minutes. The recovery rate of mercury in mercury evaporation is usually greater than 99% for 5-6 hours. Small and medium-sized mines use distillation tanks to steam mercury, large mines use distillation furnaces.
Because the gasification temperature circle of mercury is lower than the melting point and boiling point of gold, the mercury and gold in mercury paste are separated by distillation.
The solid mercury paste is placed in a sealed cast steel tank, the top of which is connected to an iron pipe containing a condensing pipe. When the temperature rises slowly to 356 degrees, the mercury in the mercury paste is vaporized and escaped along the iron pipe, and then recovered in a container with spherical droplets below the water after condensation.
- small volume, easy to carry and transfer.
- distillation efficiency is high and operation is simple.
- compact design, unique water cooling device to ensure complete liquefaction of mercury.
- the special emptying device of Frei mercury paste distillation tank to avoid the harm of residual mercury vapor in the tank after distillation.
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