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[來源:www.haradaip.com] [作者:淤泥固化] [日期:17-02-13]
污泥熱解氣化技術是將污泥熱解氣化作為污泥處置的核心技術,以烘干、造粒、尾氣處置、廢渣利用為依托的系統工程。該技術工藝流程為:與處理后的污泥經過低溫烘干,去除污泥表面的附著水及內含水。烘干后的污泥在熱解氣化之前完成造粒,制成棒狀或片狀的均勻顆粒,烘干廢氣進入氣化系統,造粒后的污泥進行熱解氣化,污泥中的有機物被氣化成可燃氣體,無機物以殘渣的形式排出??扇細怏w燃燒處理,可以利用能量,同時將有害物質轉換為煙氣,干凈的熱解氣供應給發動機或者燃氣輪機;熱解出的固體殘渣性能穩定,可耐強酸腐蝕,而重金屬被固化在內較難析出,由于其容易濕潤,所以出渣裝置需配備防堵塞措施。 Sludge pyrolysis gasification technology is the core of the sludge pyrolysis gasification as sludge disposal technology, drying, granulation, exhaust gas treatment, waste residue utilization based on system engineering. The technology process flow is: with the sludge after low temperature drying, after processing to remove sludge attached on the surface of the water and the water cut. After drying the sludge granulation, to be completed before the pyrolysis gasification of uniform particles made from bar or sheet, drying flue gas into the gasification system, after the granulation of sludge pyrolysis gasification of sewage sludge are vaporized into a combustible gas of organic matter, inorganic matter in the form of waste discharge. Combustible gas combustion process, can make use of energy, at the same time converts harmful substances to flue gas, a clean pyrolysis gas supplied to the engine or gas turbine; Pyrolysis of the solid residue stable performance, can resist the corrosion of strong acid, and difficult to precipitate heavy metals by curing, due to its easy to wet, so the slag device should be equipped with jam prevention measures. 污泥熱解氣化工藝路線圖 Sludge pyrolysis gasification technology roadmap 熱解氣化技術在生活垃圾處理領域已有應用,并被譽為“第三代垃圾處理技術”,目前已有桑德集團、神源環保(神霧集團)等一批企業進入垃圾熱解氣化領域。與生活垃圾相比,污泥的熱值相對較低,后端資源化、能源化的處置方式或從成本經濟的角度考慮,有所阻礙,熱解氣化技術在污泥領域的發展還有待觀察。 Pyrolysis gasification technology has been applied in the field of living garbage disposal, and is known as "the third generation of garbage disposal technology", have now been Thornton group, the god source, environmental protection, such as fog group (god) of a batch of enterprises into the field of waste pyrolysis gasification. Compared with the living garbage, relatively low calorific value of the sludge, the back-end disposition of resource, energy, or from the perspective of the cost of economic considerations, hinder, pyrolysis gasification technology development in the field of sludge remains to be seen.
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