Heating – Tumbler-type rotary - drum furnace – Having flexible – cooled – or air curtain seal between rotary...
Patent
1982-01-18
1983-08-23
Yuen, Henry C.
Heating
Tumbler-type rotary - drum furnace
Having flexible, cooled, or air curtain seal between rotary...
432242, 277153, F27B 724
Patent
active
044001541
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 Uncarbonized refuse is collected and withdrawn after exiting the furnace.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.
REFERENCES:
patent: 2104040 (1938-01-01), Hurt
patent: 2659588 (1953-11-01), Blanchard
patent: 2826403 (1958-03-01), Moklebust
patent: 3193266 (1965-07-01), Becker
patent: 3383115 (1968-05-01), Eckley et al.
patent: 3794565 (1974-02-01), Bielski et al.
patent: 3838015 (1974-09-01), Buchbinder et al.
patent: 3842762 (1974-10-01), Sargent et al.
patent: 3882801 (1975-05-01), Bolle
patent: 3940239 (1976-02-01), Rossi et al.
patent: 4037543 (1977-07-01), Angelo
patent: 4050389 (1977-09-01), von Dreusche, Jr.
patent: 4103899 (1978-08-01), Turner
patent: 4111439 (1978-09-01), Schmidt
patent: 4182246 (1980-01-01), Lombana et al.
patent: 4193756 (1980-03-01), Leon
patent: 4199154 (1980-04-01), Mueller
patent: 4274344 (1981-06-01), Nider
LandOfFree
Refuse burning apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Refuse burning apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Refuse burning apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1945813