F - Mech Eng,Light,Heat,Weapons – 23 – G
Patent
F - Mech Eng,Light,Heat,Weapons
23
G
110/2
F23G 5/00 (2006.01) F23G 5/20 (2006.01) F23G 7/12 (2006.01)
Patent
CA 1172911
REFUSE BURNING PROCESS AND APPARATUS Abstract A process is provided for burning refuse containing polyvinyl chloride without the consequent production of phosgene. The refuse is carbonized in a rotary furnace at temperatures below 1200 degrees F., especially 700 degrees F., in an oxygen deficient atmosphere. A burnable gas containing the carbonized refuse is drawn from the furnace by an air jet wherein same is mixed with oxygen and selectively combusted. Uncarbonized refuse is collected and withdrawn after exiting the furnace. An apparatus is provided for combustion of the refuse in the nonphosgene generating process and includes the rotary furnace. Special seals are provided for the furnace to prevent excess oxygen from entering thereinto. In particular, the seals are utilized between the rotary ends of the furnace and stationary head associated with each end respectively. Each seal includes an upper and lower flap of fire resistant material secured to an end of the furnace and a companion flap of like material is secured to an associated end of the stationary head such that the intermediate flap sealably slides between the upper and lower flaps during rotation of the furnace thereby substantially sealing between the furnace and the stationary head.
394426
Fetherstonhaugh & Co.
Lientz La Clede
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