Plastic and nonmetallic article shaping or treating: processes – Formation of solid particulate material directly from molten... – By extrusion spraying or gravity fall through orifice
Patent
1975-01-16
1976-05-11
Yudkoff, Norman
Plastic and nonmetallic article shaping or treating: processes
Formation of solid particulate material directly from molten...
By extrusion spraying or gravity fall through orifice
201 25, 201 25, 201 34, 201 36, 48 62A, 65 21, B22D 2308
Patent
active
039560767
ABSTRACT:
Solid waste material is disposed of and a portion thereof converted into valuable refractory material within a reactor having a substantially vertical pyrolysis chamber, a refuse charging inlet and a combustible gas outlet in the upper region thereof and a molten refractory material outlet in the lower region thereof. Gas-feed means charges an oxygen-rich gas into the chamber under pressure at a plurality of vertically spaced points along the length thereof so as to produce combustion of the waste organic components and generate heat. The charge is controlled to maintain a plurality of different temperature zones along the length of the chamber so as to effect incomplete combustion of the waste organic component and form a combustible gas and an organic-free molten refractory material. Preferably the gas-feed means includes a substantially vertical core member with the chamber, for receiving and channeling the oxygen-rich gas through conduits therein, and the distribution of the oxygen-rich gas among the various conduits is controlled by temperature sensors located within the various temperature zones. The molten refractory material is prilled to form ceramic prills which are recovered as a product of the process.
The solid waste material may be compacted prior to being charged through the refuse charging inlet and the molten refractory material withdrawn from the chamber may be prilled by discharging into a countercurrent stream of gas to form ceramic beads. The combustible gas may be processed to recover tars, and it may be burned to generate heat for producing power. The solid waste material contains as minimum weight values about 2.0 per cent of glass and ceramics, 18.0 per cent of paper products, 3.0 per cent of metals and 6.0 per cent of food waste and other organic materials.
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patent: 3841992 (1974-10-01), Jones
Powell, Jr. Orlo A.
Roncari Angelo J.
Bernstein Hiram H.
Urban Research & Development Corporation
Yudkoff Norman
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