As for the sludge drying air stream for the ejector, and more particularly, for the sludge drying air stream for the ejector in the number to further reduce the water content in the sludge.
Sludge dryer airflow ejector according to the present invention includes a first inlet, a pipe, a second inlet and outlet. The first inlet is formed in the nozzle to draw air. The pipe is fitted to the outlet of the nozzle. Wherein the second inlet is formed in the pipe in order to suck the sludge. The ejector is formed at the outlet of the pipe in order to eject the sludge and air are formed in the diffuser. And the nozzle is the inlet diameter of 2.10 to 2.12, the ratio of the outlet. Further, a of the pipe for the outlet of the nozzle inner diameter ratio of 1.53 to 1.55. And the ratio of the inner diameter of the second inlet to the outlet of the nozzle is 1.06 to 1.08. And the length of the nozzle to the inner diameter of the nozzle outlet ratio is 4.63 to 4.65. And the length of the pipe to the inside diameter of the nozzle outlet ratio is 2.92 to 2.94. And the length of the diffuser to the inner diameter of the nozzle outlet ratio is 5.14 to 5.16.
According to the present invention, by providing a sludge stream drier for the ejector having an optimum aspect ratio, it is possible to increase the intake vacuum pressure for sucking inlet air flow and the sludge. Due to this more finely pulverizing the sludge it can be reduced by the amount of moisture.