Solid waste disposal system

Patent · Tue Mar 18 04:00:00 EST 1980

OSTI ID:5748437

Woods, M G

A waste disposal system for the thermal conversion of municipal and industrial solid wastes into essentially pollution free products of combustion is disclosed. The waste disposal system includes a building enclosure having an interior storage area for accumulating combustible refuse, and an incinerator for thermally oxidizing the refuse. In a preferred embodiment, the incinerator includes a combustion chamber which is maintained at a reduced pressure level relative to the pressure of the surrounding atmosphere. This subatomspheric pressure arrangement produces a positive flow of air into the chamber as it is loaded thereby permitting loading during combustion virtually without risk of injury to personnel or damage to surrounding combustible material. In another preferred embodiment, the incinerator includes a primary combustion chamber which is maintained in an excess air condition as combustion occurs, and a secondary combustion chamber into which an auxiliary source of fuel such as natural gas is injected. Heat energy is recovered by conveying the exhaust gases from the secondary combustion chamber through a steam generator for the production of steam to operate an industrial process or for the operation of a steam turbine prime mover for generating electricity. The rate at which auxiliary fuel is injected into the secondary combustion chamber is controlled to ensure complete combustion of the exhaust gases to meet environmental standards, and to sustain the generation of a predetermined minimum level of heat energy in the exhaust gases for supporting the continuous production of steam to compensate for a temporary shortage of refuse derived fuel.

• Assignee: IFI; EDB-82-064965
• Patent Number(s): US 4193354
• OSTI ID: 5748437
• Country of Publication: United States
• Language: English

Related Subjects

20 FOSSIL-FUELED POWER PLANTS
200103* -- Fossil-Fueled Power Plants-- Waste-Fueled Systems
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320305 -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Industrial Waste Management
320604 -- Energy Conservation
Consumption
& Utilization-- Municipalities & Community Systems-- Municipal Waste Management-- (1980-)
AIR POLLUTION CONTROL
CHEMICAL REACTIONS
COMBUSTION CHAMBERS
CONTROL
DESIGN
EFFICIENCY
ENERGY RECOVERY
FLUE GAS
GASEOUS WASTES
HEAT RECOVERY
INCINERATORS
INDUSTRIAL WASTES
MANAGEMENT
MUNICIPAL WASTES
OXIDATION
POLLUTION CONTROL
POWER PLANTS
PRODUCTION
RECOVERY
REFUSE-FUELED POWER PLANTS
SOLID WASTES
STEAM
THERMAL POWER PLANTS
WASTE DISPOSAL
WASTE MANAGEMENT
WASTES