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US 8,800,898 B2Granted
Method and apparatus for processing of materials
AssigneeTempico Manufacturing, Inc.
InventorPaul Alford
Life of this patent
Estimating the term…
Abstract
A method and apparatus processing materials including municipal waste at ambient pressure and low temperatures, and processing materials; the apparatus comprising an elongated rotating cylindrical configuration.
Claims20
A method of treating municipal solid waste comprising the steps of:
- (a) providing a rotating cylinder operating at ambient pressure;
- (b) supplying waste to an inlet of the rotating cylinder;
- (c) pulping the waste while inside the cylinder, while live steam is used to maintain a pulping processing temperature between 160 degrees Fahrenheit to 210 degrees Fahrenheit at ambient pressure for a predefined retention time;
- (d) waste exiting from the cylinder and the waste being screened without having been cooked by heating above 210 degrees Fahrenheit;
- and
- (e) wherein steps “a” through “d” are performed on a continuous basis, wherein in step “b” waste is loaded into the rotating cylinder via a shrouded insulated conveyor and heating of the waste begins as steam is introduced into the insulated conveyor and the interior of the rotating cylinder.
3 more elements
A method of treating municipal solid waste comprising the steps of:
- (a) providing a rotating cylinder operating at ambient pressure;
- (b) supplying waste to an inlet of the rotating cylinder;
- (c) pulping the waste while inside the cylinder, while live steam is used to maintain a pulping processing temperature between 160 degrees Fahrenheit to 210 degrees Fahrenheit at ambient pressure for a predefined retention time;
- (d) waste exiting from the cylinder and the waste being screened without having been cooked by heating above 210 degrees Fahrenheit;
- and
- (e) wherein steps “a” through “d” are performed on a continuous basis, wherein the amount of crystallization of cell structures of cellulose and hemicellulose in the pulped waste is less than 25 percent.
3 more elements
A method of treating municipal solid waste comprising the steps of:
- (a) providing a rotating cylinder operating at ambient pressure;
- (b) supplying waste to an inlet of the rotating cylinder;
- (c) pulping the waste while inside the cylinder, while live steam is used to maintain a pulping processing temperature between 160 degrees Fahrenheit to 210 degrees Fahrenheit at ambient pressure for a predefined retention time;
- (d) waste exiting from the cylinder and the waste being screened without having been cooked by heating above 210 degrees Fahrenheit;
- and
- (e) wherein steps “a” through “d” are performed on a continuous basis, wherein in step “d” moisture is recovered from the pulped waste exiting the rotating cylinder for recycling, which is between about 50 and 95 percent, and in step “b” a portion of the original process heat is retained in the recycled water, which portion is between about 50 and 95 percent.
3 more elements
Dependencies are inferred from the claim text.