Method for extracting metal cobalt and tungsten from scrap hard alloy and special calcining device
A cemented carbide and metal extraction technology, which is applied in the field of recycling and reuse of waste cemented carbide, can solve the problems of high energy consumption, waste of heat energy, low recovery rate of metallic cobalt and tungsten, etc., and achieves high extraction rate and improved calcination efficiency. , the effect of improving efficiency
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[0028] Below in conjunction with accompanying drawing, the special calciner provided by the present invention and the technology that utilizes this calciner to extract metal cobalt and tungsten from waste cemented carbide are described in further detail:
[0029] Such as figure 1 Shown is a schematic structural view of the special calciner for extracting metal cobalt and tungsten from waste cemented carbide provided by the present invention. That is, the structure of the calciner includes: a tubular structure calciner 14 made of graphite material, consisting of a feed section 1, a calcined section 2 and a discharge section 3, the two ends of which are a feed port 4 and a discharge port 5, An electric heating mechanism 6 and an insulating layer 7 are arranged around the exterior of the calcining section 2 constituting the calcining chamber, and a hydrogen blowing pipe 8 is arranged at the discharge section constituting the calcining chamber.
[0030] In the above structure, in...
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