Installation and method of burning cement raw

Details Installation and method of burning cement raw Installation and method of burning cement raw

1977-05-04

1978-12-19

Camby, John J.

Heating

Processes of heating or heater operation

Including passing, treating or conveying gas into or through...

432106, F27B 1500, F27B 702

Patent

active

041303903

ABSTRACT:
Extensive improvements in the production capability of the existing installations of the type comprising a rotary kiln and a suspension preheater unit are disclosed; that is, another suspension preheater unit provided with a calciner at its lowermost heat transfer stage and a distributor to direct a part of the preheated raw materials from the existing preheater to the calciner are installed, and all the raw materials supplied to two preheater units are uniformly and highly calcined ahead of the kiln in the preheaters by control of the distributor as well as the fuel rate to the calciner, thereby the production capacity of the kiln is doubled. Furthermore the accumulation of raw materials on the bottom of the calciner can be substantially eliminated and the specific power consumption of the installations may be reduced.

REFERENCES:
patent: 3904353 (1975-09-01), Bosshard et al.
patent: 3914098 (1975-10-01), Kano et al.

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