Dry type granulating system for sulfonium

Abstract

The invention discloses a dry type granulating system for sulfonium. The dry type granulating system comprises a closed box body, and an air granulation device, a particle collection device, a transportation device and a dry type cooling device which are arranged in the closed box body, wherein the dry type cooling device is used for cooling sulfonium particles; the air granulation device is arranged at one end of the closed box body; the material feeding end of the air granulation device extends out of the closed box body; the transportation device is arranged at the bottom of the closed box body; the output end of the transportation device extends out of the closed box body; the dry type cooling device is arranged above the transportation device; the particle collection device is a V-shaped slot of which the bottom is provided with an opening; and the opening in the bottom of the particle collection device is connected with the dry type cooling device. The dry type granulating system has the advantages of high safety coefficient, low pollution, long service life and high economical benefit.

Description

technical field [0001] The invention relates to non-ferrous metal smelting, in particular to a dry granulation system for matte. Background technique [0002] Matte is a eutectic of non-ferrous heavy metal sulfides and iron sulfides, also known as molten matte. It is an important intermediate product of sulfide concentrate pyrometallurgy of copper, nickel and other metals. For example, the matte obtained from copper smelting is called copper matte (or matte), which belongs to Cu 2 S-FeS system, while nickel sulfide concentrate can be smelted to obtain Cu 2 S-Ni 3 S 2 -Copper-nickel matte (or copper-nickel matte) of FeS system. [0003] Since matte is an intermediate product of smelting, it must be desulfurized to obtain the final metal required, so matte must be further smelted. At present, there are many processes for smelting matte, including horizontal converter blowing, flash blowing, Mitsubishi smelting furnace smelting, oxygen bottom blowing continuous copper sme...

AI Technical Summary

Problems solved by technology

The "water quenching" process has serious defects and potential safety hazards: (1) liquid matte (1100~1300 °C) will explode when it meets water, and there is a safety hazard in the process of processing; (2) the produced SO 2 Difficulties in gas collection caused a large amount of flue gas to escape in the workshop, which seriously affected the environment. Moreover, the matte after water quenching had to undergo wet grinding, drying and other processes, which was cumbersome; (3) the amount of liquid matte processed each time was small, Low production efficiency

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