| 摘要 |
PROBLEM TO BE SOLVED: To provide a slurry spraying nozzle which is free from clogging, can smoothly mix an additive in slurry, achieves good nodulization, and can stably spray the slurry to a target surface located ranging from a short distance to a long distance. SOLUTION: According to the structure of the slurry spraying nozzle, the slurry for vegetative substrate in which a nodulizing agent is mixed beforehand, is force-fed from a slurry introduction port (101a) into a nozzle passage (101), and compressed air is introduced from compressed air injection ports (103) into the nozzle passage. The nozzle has slit-like additive suction ports (104) arranged on an upstream side of the respective compressed air injection ports, and the width of each suction port is optimally set to almost 1/10 the diameter of the nozzle passage. The slurry in the passage is accelerated due to the introduced compressed air, and accordingly the additive in the form of continuous fibers is smoothly sucked. Then good agitation is carried out in the nozzle and the slurry having the additive suitably mixed therein is nodulized and ejected from a slurry ejection port (101b). The nodulizing agent may be mixed in the slurry via the additive suction ports. COPYRIGHT: (C)2006,JPO&NCIPI
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