Energy recovery system for an incinerator

Patent · Tue Dec 04 00:00:00 EST 1984

OSTI ID:6065919

Erlandsson, K I

An energy recovery system for an incinerator. Hot flue gases from the incinerator are discharged into a vertical stack and the lower end of the stack is connected through an auxiliary conduit to a heat exchanger, such as a steam or hot water boiler. An induced draft fan draws the hot flue gases through the conduit and boiler to generate steam or hot water and a damper is located within the conduit. A fuel burner is connected in the conduit and operates to supply heat to the boiler during periods when the incinerator is not operating. A first flow sensing mechanism is located in the conduit upstream of the boiler, while a second flow sensing mechanism is positioned in the stack downstream of the connection of the stack and the conduit. In the incinerator mode of operation, the second flow sensing mechanism controls the damper in a manner to obtain a substantially zero flow of waste gas through the stack to the atmosphere to insure that all of the waste gas from the incinerator is directed through the conduit to the boiler. During periods when the incinerator is not operating, the burner mode of operation is established and the first flow sensing mechanism controls the damper to obtain substantially zero flow of gas upstream of the burner so that all of the heat from the burner will be directed to the boiler.

• Assignee: Kelley Company Inc.
• Patent Number(s): US 4485746
• OSTI ID: 6065919
• Resource Relation: Patent File Date: Filed date 18 Nov 1983; Other Information: PAT-APPL-553358
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
INCINERATORS
HEAT RECOVERY
WASTE HEAT UTILIZATION
BLOWERS
BOILERS
BURNERS
CONTROL SYSTEMS
DAMPING
DRAFT CONTROL SYSTEMS
FLOW REGULATORS
FLUE GAS
GAS FLOW
HEAT EXCHANGERS
OPERATION
CONTROL EQUIPMENT
ENERGY RECOVERY
EQUIPMENT
FLUID FLOW
GASEOUS WASTES
RECOVERY
WASTE PRODUCT UTILIZATION
WASTES
320304* - Energy Conservation
Consumption
& Utilization- Industrial & Agricultural Processes- Waste Heat Recovery & Utilization