| 摘要 |
The invention relates to a heat accumulating type vacuum drying machine for dung of domestic animal, which dries substance of environmental pollution (dung of domestic animal) by means of vacuum to produce good organic fertilizer manure and to prevent environmental pollution. The invention relates to an improvement to a vacuum drying machine for dung of domestic animal, according to a registered utility model (Korean Utility Model No. 071754). A prior dyring machine for dung of domestic animal (the Korean Utility Model No. 071754) makes use of a heating medium oil, which is found to be disadvantageous in catching fire. The invention provides a direct firing type apparatus which comprises heat accumulating plates (2, 2') provided in a fire casing (31) for accumulating heat, an automatic shut-off device (24) provided on an upper portion of a chimney (23) for automatic opening and closing for maximization of thermal efficiency, and a filter provided in a suction casing (15) for prevention of suction of sawdust. The invention is effective in preventing environmental pollution and producing organic fertilizer.
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