Method and apparatus for heating aggregate

Details Method and apparatus for heating aggregate Method and apparatus for heating aggregate

1981-05-01

1983-01-11

Camby, John J.

Heating

Processes of heating or heater operation

Including melting, vaporizing, sintering, expanding...

431 4, 431163, 431354, 432 14, 432120, F27B 1400, F27B 1500, F23J 700

Patent

active

043680356

ABSTRACT:
Method and apparatus for heating aggregate in a system which includes a unit for mixing a stream of fuel and a stream of forced air to form a gaseous combustible fuel mixture, and a blower coupled to the unit for supplying it with forced air. The apparatus includes a water-spray device for injecting a fine-particle spray, at an adjustable water-volume rate, into the air-intake opening of the blower. In the method of the invention, the temperature of the heated aggregate is monitored under conditions where the fuel mixture is characterized by a substantially constant fuel-flow rate. The water-volume rate of atomized water spray introduced into the blower is adjusted until a maximum monitored aggregate temperature is observed. The amount of fuel in the moisture-containing fuel mixture is then adjusted to effect heating of the aggregate to a desired temperature.

REFERENCES:
patent: 4014637 (1977-03-01), Schena
patent: 4152374 (1979-05-01), Wenger et al.
patent: 4249890 (1981-02-01), Graham
patent: 4295816 (1981-10-01), Robinson

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