| 摘要 |
PROBLEM TO BE SOLVED: To accurately and stably supply relatively large combustible waste to a region sufficiently remote from the downstream end of a kiln by using a nozzle with a straight tube part having a specified length from the front end as a throwing nozzle. SOLUTION: A nozzle with a straight tube part having >=5 m, preferably >=7 m length L from the front end is used as a nozzle 4 for throwing combustible waste disposed with a main burner 3. Since the nozzle can impart 20-100 m/sec velocity to combustible waste blown from the front end of the nozzle, the waste can be reliably and stably thrown and dropped into the optimum throwing region located in the range of 20-50 m from the downstream end of a kiln. The combustible waste is not limited if it can be thrown into the kiln by an air flow but the waste having 0.5-30 g mass and 1-50 mm size is preferable. The throwing nozzle 4 is preferably disposed so as to align the front ends of the nozzle 4 and the main burner 3.
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