Continuous sulfur heating melting pool

Abstract

The invention discloses a continuous hot molten sulfur pool, which comprises a sealed sulfur molten pool body with a feeding port provided with a discharge port, and steam coil heaters are arranged around the inner wall of the molten sulfur pool body; There is also a steam coil heater around the mouth; or at least one side around the feeding mouth is also equipped with a steam coil heater so that the feeding mouth is heated by the steam coil heater and the steam coil on the inner wall of the molten sulfur pool body Surrounded by the device; there is an agitator around the feeding port and in the area surrounded by the steam coil heater. The sulfur slag is directly added to the closed sulfur melting pool, under the action of the steam coil heater and the stirrer, the elemental sulfur in the sulfur slag is heated and melted by the temperature of the molten crude sulfur in the sulfur melting pool, and the temperature of the molten crude sulfur is determined by Steam coil indirect heating provided. The invention has the advantages of small footprint, good environmental protection, energy saving and low labor intensity, short process, large processing capacity, simple production operation, etc., and can process sulfur slag with high sulfur content.

Description

technical field [0001] The invention belongs to the technical field of nonferrous metallurgy, and in particular relates to a continuous hot-melt sulfur pool. Background technique [0002] Under normal circumstances, nickel sulfide electrolysis anode slime contains more than 80% elemental sulfur, and the sulfur concentrate produced by zinc oxygen pressure leaching underflow flotation contains more than 75% elemental sulfur. In industrial production, elemental sulfur is used at about 120 ℃. The characteristics of melting into a liquid state, using the hot melting process to melt the elemental sulfur in the sulfur slag, and controlling the temperature in it, so that it has better fluidity, and the sulfur in it is separated and recovered. In the production of non-ferrous metallurgy industry, there are currently two production methods for melting sulfur-containing slag, one is the intermittent hot melting sulfur method, and the other is the continuous hot melting sulfur method. ...

AI Technical Summary

Problems solved by technology

However, the technology of the continuous hot melting sulfur method is relatively late and relatively new, and most of them still use the intermittent hot melting sulfur method at present, and the processing capacity of the cyclone in the existing continuous sulfur melting process equipment is limited, and the production capacity is limited; and when When the circulating pump cannot operate normally, there is no molten crude sulfur added to the cyclone, which often causes sulfur slag to block the conical discharge port of the cyclone, causing production to stop; in addition, the effective volume of the crude sulfur pool used with the cyclone is small , generally less than 30 times the volume of sulfur slag processed per hour, the phenomenon of elemental sulfur overflow (cavity) often occurs when water vapor evaporates, and there is no scientific agitator and heater in the crude sulfur pool, so it cannot be separated from the cyclone molten sulfur treatment

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