Cleaning and liquid contact with solids – Processes – For metallic – siliceous – or calcareous basework – including...
Patent
1982-03-12
1983-08-09
Lindsay, Jr., Robert L.
Cleaning and liquid contact with solids
Processes
For metallic, siliceous, or calcareous basework, including...
65 2, 65 65, C03C 2300
Patent
active
043976921
ABSTRACT:
A method and apparatus for the reclamation of inorganic fibers from waste continuous strips of inorganic fibers. A binding agent, such as an organic binder, must be removed before the fibers can be reused or further processed. One or more layers of continuous strips are conveyed to a heating zone where the strips 42 are supported along a predetermined path as a heating fluid is drawn rapidly through the strips. The heating fluid is controlled as to temperature, pressure and mass flow rate to insure that the binder is properly decomposed and that the products of decomposition are rapidly carried away from the strips to prevent heat buildup which could cause a temperature increase to the fusion point of the fibers. Process temperatures are thus suitably controlled to below the fusion temperature of the fiber material. The reclaimable fiber may be directly recycled, further processed as desired or, in the case where binder is still present on the fibers in unacceptable levels, these non-reclaimable fibers may be dumped for subsequent disposal. Products of binder decomposition are incinerated and form part of the heating fluid drawn through the strips.
REFERENCES:
patent: 2674549 (1954-04-01), Balz
patent: 3253897 (1966-05-01), Falls
patent: 3375155 (1968-03-01), Adams
patent: 3847664 (1974-11-01), Gravel
patent: 3852108 (1974-12-01), Lindberg
patent: 4145202 (1979-03-01), Grodin
Miller John H.
Ramge Dennis L.
Halvorsen Ronald M.
Lindsay, Jr. Robert L.
Lister John D.
Manville Service Corporation
Thomson Richard K.
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