Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/90015
標題: Study of a Tunnel System for Drying and Deodorizing Chicken Manure
隧道式雞糞乾燥除臭設備之研究
作者: Zhong-Qiang Li
李仲強
關鍵字: 太陽能;乾燥;雞糞;除臭;Solar energy;Dry;Chicken manure;Odor removal
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摘要: 
台灣地區雞隻飼養數量將近9 000萬隻,每日產生的雞糞量超過2 700 tons,處理過程中常造成令人不舒服的臭味,如何將其資源化而不造成環境的污染,是目前雞糞處理所要面對的議題。本研究將設計雞糞處理設備,含隧道式輸送與乾燥系統,期能達到節約能源與降低臭味的目的。後段利用攪拌乾燥箱,將水份降至更低的含量,提供更為乾燥的成品,以利農民直接使用。
乾燥雞糞時,適當的乾燥溫度與糞便厚度可降低乾燥時間與避免氮素損失。本隧道式輸送帶設備以3 cm薄層條件和60°C的加熱溫度,設計完整的乾燥設備及控制策略,使用密閉的遮罩可使熱能集中同時以抽風機將臭氣抽出處理。設備以一天處理一萬隻雞產生的雞糞(300 kg)為例,使用隧道式輸送帶乾燥8小時,設備馬達預估耗電約為5HP = 3750瓦,電費約90元/天,能將300 kg雞糞乾燥至50~60%含水率,至此可裝發酵袋使用;若需更乾的成品,可以接續使用電能攪拌箱乾燥8小時,耗電成本約為72元/天,能將雞糞乾燥至30~40%含水率。
隧道式遮罩最高能提高乾燥溫度約10°C,隔絕臭氣效果良好,與一般日曬相比,3 m距離能降低氨氣濃度至少2 ppm、最多3 ppm;降低甲胺濃度至少1 ppm、最多10 ppm。隧道式乾燥設備需總長度約15 m(分3段各5 m階梯式輸送機台)、寬1 m的輸送帶,模擬設備外型估算需要場地大小約長23 m、寬6.2 m、高3.2 m。

There are about 90 million chicken in Taiwan and produce over 2 700 tons manure each day. The offended odor makes people feel extreme uncomfortable. However, the rich nitrogen in the chicken manure presents high fertilizer application availability. To utilize the chicken manure and will not harm the environment is an important issue in Taiwan. This research is to develop a managing device for chicken manure, including a tunnel type conveying and a heating bucket associated with rotating blades. Using the tunnel type conveying system would reduce the odor mostly. Then using drying bucket to lower moisture content for more dry product, and farmers could apply the dry manure directly.
When drying chicken manure, a proper thickness of manure associated with right temperature would reduce the drying time as well as avoid the loss of nitrogen. 3 cm thickness of manure and 600 C were applied in the closed tunnel area. Closed space cumulates heat and an exhaust fan removes odor. For a 10 000 chicken farm, having 300 kg manure per day, the tunnel conveying system would consume 5 HP = 3 750 W, that is, NT$90/day for the electricity fee, and the moisture content could be reduced to 50 – 60% in 8 hours. Up to this stage, the manure could be packed up into a fermentation bag as a product. When drier product required, the post process would be in the heating bucket and the moisture content would be dropped to 30 – 40% in another 8 hours. The cost for the post process would be about NT$72 per day for the electricity.
The closed tunnel could raise inner temperature up to 100 C and reduce the odor tremendously. Compared to the chicken manure exposed in the open field, the ammonia would be dropped to 2 – 3 ppm using tunnel system in a distance of 3 meters. In addition, the monomethylamine concentration would be reduced from 1 ppm to maximum 10 ppm. The total length of the tunnel system was designed as 15 m, 5 m each for 3 step level conveyors associated with 1 m in width. The space for this tunnel conveyor system would 23 m x 6.2 m x 3.2 m for the width, depth, and height, respectively.
URI: http://hdl.handle.net/11455/90015
其他識別: U0005-2407201515325400
Rights: 同意授權瀏覽/列印電子全文服務,2015-08-03起公開。
Appears in Collections:生物產業機電工程學系

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