Two-stage type cavitation bubble generator

Abstract

The invention discloses a two-section type cavitation bubble generator which comprises a first cavitation section and a second cavitation section, wherein the first cavitation section comprises a first jet chamber, a compression channel, a gas chamber and a mixing channel; The first jet chamber, the compression channel, the gas cavity and the mixing channel are sequentially communicated in the fluid flowing direction. The second cavitation section comprises a second jet chamber with an opening in one end, an outlet channel for outputting fluid and a center body; the open end of the second jetchamber is connected with the fluid output end of the first cavitation section, and the other end of the second jet chamber is communicated with the outlet channel; a low-pressure fluid inlet communicated with the second jet chamber is formed in the wall of the second jet chamber; the center body is arranged in the middle of the second jet chamber and fixedly connected with the second jet chamber,and a center body channel used for mixing fluid and gas is formed in the radial center of the center body. The cavitation bubble generator has high cavitation efficiency, the cavitation action rangeof a single generator is wide, the cavitation bubble generator can be effectively used for a high-sulfur slag dissociation process, the slag-sulfur separation effect is improved, and a good foundationis provided for subsequent flotation sulfur extraction.

Description

technical field [0001] The invention relates to the field of heavy metal metallurgy, in particular to a two-stage cavitation bubble generator. Background technique [0002] The direct leaching process realizes the full wet treatment of zinc sulfide concentrate. The zinc production capacity of the direct leaching process of zinc concentrate in my country is about 500,000 tons / year, and the total amount of high-sulfur slag produced along with it reaches 600,000 tons / year. In addition to elemental sulfur, high-sulfur slag also contains valuable components such as zinc, lead, silver, indium, and toxic elements such as arsenic, cadmium, and mercury. The efficient recovery of elemental sulfur from acid leaching slag embodies the advantages of direct leaching technology. It is also beneficial to the comprehensive recovery of valuable components in the subsequent acid leaching residue. At present, domestic zinc direct leaching enterprises generally adopt the "flotation-hot filtrati...

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Problems solved by technology

[0006] The invention provides a two-stage cavitation bubble generator to solve the problems of low cavitation efficiency and poor cavitation dissociation effect of the cavitation bubble generator in the related art

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