Solid material comminution or disintegration – Processes – With application of fluid or lubricant material
Patent
1996-01-04
1998-08-04
Husar, John M.
Solid material comminution or disintegration
Processes
With application of fluid or lubricant material
241 2413, 241 2414, 241 2418, 241 79, 241DIG38, B02C 1912, B02C 2314
Patent
active
057881677
ABSTRACT:
Preferred processes to separate metallic and non-metallic constituent components of at least one electronic product are generally comprised of the following steps: (a) repeatedly crushing the at least one electronic product to create a plurality of crushed electronic components; (b) repeatedly screening the plurality of crushed electronic components to ensure that the plurality of crushed electronic components substantially conform to a specific size; and (c) repeatedly separating portions of the plurality of crushed electronic components after steps (a) and (b) into non-metallic constituent components, metallic constituent components and mixed constituent components by weight, the mixed constituent components having both non-metallic constituent components and metallic constituent components; and (d) returning the mixed constituent components to be recrushed, rescreened, and reseparated in steps (a), (b), and (c). In addition, before step (a), the at least one electronic product must be provided or otherwise transported to crushing machines to perform step (a). Likewise, the crushed electronic components must be transported from one crushing machine to another crushing machine and to the separating apparatus to perform step (c). The crushed electronic products are also periodically screened, such as after each crushing step to limit the size of the crushed materials in the stream of crushed materials being evaluated. Lightweight material is also removed from the stream of crushed materials by at least one air separator. Portions of the light weight material that comprise metallic material are preferably returned to the stream of crushed material. Portions of lightweight material substantially comprised of non-metallic materials (i.e., dust) is transported to a collection apparatus. The products can be shredded before step (a).
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Burke R. Darryl
Husar John M.
Resource Concepts, FNC
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