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[来源:www.yuniguhua.com] [作者:淤泥固化] [日期:17-02-13]
污泥热解气化技术是将污泥热解气化作为污泥处置的核心技术,以烘干、造粒、尾气处置、废渣利用为依托的系统工程。该技术工艺流程为:与处理后的污泥经过低温烘干,去除污泥表面的附着水及内含水。烘干后的污泥在热解气化之前完成造粒,制成棒状或片状的均匀颗粒,烘干废气进入气化系统,造粒后的污泥进行热解气化,污泥中的有机物被气化成可燃气体,无机物以残渣的形式排出。可燃气体燃烧处理,可以利用能量,同时将有害物质转换为烟气,干净的热解气供应给发动机或者燃气轮机;热解出的固体残渣性能稳定,可耐强酸腐蚀,而重金属被固化在内较难析出,由于其容易湿润,所以出渣装置需配备防堵塞措施。 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. 污泥热解气化工艺路线图 Sludge pyrolysis gasification technology roadmap 热解气化技术在生活垃圾处理领域已有应用,并被誉为“第三代垃圾处理技术”,目前已有桑德集团、神源环保(神雾集团)等一批企业进入垃圾热解气化领域。与生活垃圾相比,污泥的热值相对较低,后端资源化、能源化的处置方式或从成本经济的角度考虑,有所阻碍,热解气化技术在污泥领域的发展还有待观察。 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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