Method for controlling temperatures in the afterburner and combustion hearths of a multiple hearth furnace

Patent · Tue Jul 05 00:00:00 EDT 1983

OSTI ID:5610749

Lewis, F M

The present invention relates to a method for efficiently incinerating waste material, particularly dewatered sludge, in a multiple hearth furnace by controlling the temperature of the individual hearths of the furnace within certain prescribed limits by modulating the amount of combustion air, and controlling the temperature of the afterburner or combustion hearths to within certain prescribed limits by splitting the feed sludge between the first two upper waste material handling hearths.

• Assignee: Sterling Drug, Inc.
• Patent Number(s): US 4391208
• OSTI ID: 5610749
• Resource Relation: Patent File Date: Filed date 29 Sep 1980; Other Information: PAT-APPL-192021
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
AFTERBURNERS
TEMPERATURE CONTROL
FURNACES
OPERATION
SEWAGE SLUDGE
COMBUSTION
AIR POLLUTION CONTROL
EFFICIENCY
CHEMICAL REACTIONS
CONTROL
EQUIPMENT
OXIDATION
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
SEWAGE
SLUDGES
THERMOCHEMICAL PROCESSES
WASTES
421000* - Engineering- Combustion Systems