| 摘要 |
A rotary kiln for the manufacture of cement clinker comprises an elongated tubular steel member with an internal refractory brick lining, an inlet feed, an exit adjacent to a lower end of the tubular member, and means for intercepting heat, and thus cooling, the newly formed cement clinker at the exit. Preferably, the temperature of clinker issuing from the kiln is reduced by lengthening a burner pipe, thus minimising entropy in a burning zone and reducing the throughput potential of the kiln. A lifting device may be installed at the lower end of a cooling zone of the kiln, where intercepted heat from the lifted clinker leaving the device may enhance entropy in the burning zone of the kiln. The clinker dust created by the lifting device may be carried up through the kiln in particulate form with the gas flow, with the lighter clinker dust being carried up into the burning zone of the kiln where it releases its acquired heat. Preferably, the acquired heat reduces the calcining heat requirement in the burning zone of the kiln such that the combined enhanced entropy and reduced calcining heat requirement increases and restores the throughput potential of the kiln to its original level. |
