Method and apparatus for incinerating waste material

Patent · Tue Sep 27 04:00:00 EDT 1977

OSTI ID:6345989

von Dreusche, Jr, C F

A method and apparatus are disclosed for incinerating waste material in a multiple hearth furnace having a plurality of vertically spaced hearths wherein waste material is introduced to the furnace at the top thereof and moves downwardly in a generally serpentine fashion moving alternately inwardly and outwardly across the hearths and is discharged at the bottom of the furnace, and including the steps of introducing towards the lower-most hearth thereof air in a quantity less than that theoretically required for complete combustion of the material being processed, thereafter at successively higher hearths ascertaining the temperature at each hearth and adding air thereto in quantities only sufficient to support combustion thereon, and on each hearth in the middle portion of the furnace adding only enough air to each hearth so as to maintain the temperature on that hearth under a maximum predetermined limit, and on the hearths towards the top of the furnace reducing the quantity of air added, and thence discharging the exhaust gases at the top of the furnace.

• Assignee: Nichols Engineering and Research Corp.
• Patent Number(s): US 4050389
• OSTI ID: 6345989
• Country of Publication: United States
• Language: English

Related Subjects

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-)
CHEMICAL REACTIONS
COMBUSTION
DESIGN
INCINERATORS
MUNICIPAL WASTES
OPERATION
OXIDATION
SOLID WASTES
THERMOCHEMICAL PROCESSES
WASTES