A low-cost, smokeless automobile incinerator capable of burning up to 80 flattened automobiles in an 8-hour operating day was designed by the Bureau of Mines and has been operated during the past 4 years. Based upon the successful operation of this prototype, a modified incinerator capable of burning both railroad cars and automobiles was designed and constructed by a major scrap processor in conjunction with the Bureau of Mines. Research on the operation of this incinerator has been conducted during the past year, burning flattened and unflattened automobiles and stock, box, and work railroad cars. Although many maintenance problems were encountered from materials of construction, operation of the incinerator was successful. Smokeless incineration of railroad cars as well as automobiles was found possible in 23 of 25 tests made in the late stages of operation. Smoke emission in the other two burns was of less than 2-minute duration in each case. The average time for burning a batch of 20 unflattened automobiles was about 35 minutes, and the railroad cars ranged from 60 to 75 minutes each for complete burnout.
Met. Soc., AIME, February 1974, TMS Preprint A74-88, 6 PP.