Spraying device and urea granule production apparatus

Abstract

The present disclosure provides a spraying device and a urea particle preparation equipment, the spraying device can include: a spray head, a connecting pipe and a filter structure, the spray head is provided with a spray hole; the connecting pipe has a liquid inlet end and a liquid outlet end, the liquid outlet end is rotatably connected with the spray head; the filter structure includes: a connecting skeleton and a filter screen, the connecting skeleton is detachably arranged in the connecting pipe and is provided with a first opening hole penetrating the liquid inlet end and the liquid outlet end, the filter screen is connected with the connecting skeleton and covers the surface of the connecting skeleton corresponding to the liquid inlet end, and the filter screen is provided with a second opening hole penetrating the liquid inlet end and the first opening hole, the aperture of the second opening hole is smaller than the aperture of the first opening hole; wherein, the connecting pipe is provided with a through hole having a closed state and an open state near the position of the filter structure, and the aperture of the through hole is larger than the aperture of the second opening hole.

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