一种生活垃圾处理系统

摘要：

一种生活垃圾处理系统，由机械分选单元、厌氧发酵单元和焚烧发电单元组成，其中机械分选单元由垃圾给料、破袋、磁选、滚筒筛分、风选、转盘筛分、涡电流分选、破碎除杂、制浆除杂工序组成，厌氧发酵单元由水解酸化、厌氧发酵、沼气净化、沼气脱碳、沼渣脱水、制肥、污水处理工序组成，本发明在原有垃圾焚烧发电系统的基础上，采用机械分选的手段，将生活垃圾中含量大于50%，对焚烧发电贡献少于10%的生物质选出来进行厌氧发酵，不但有利于焚烧发电，还获得额外的天然气能源和有机肥资源。

摘要（英）：

The invention relates to a domestic garbage treatment system, which comprises a mechanical sorting unit, an anaerobic fermentation unit and an incineration power generation unit, wherein the mechanical sorting unit comprises steps such as garbage feeding, bag breaking, magnetic separation, screening with a drum, wind selection, screening with a rotation disk, sorting with eddy current, breaking and impurity removing, and pulping and impurity removing, and the anaerobic fermentation unit comprises steps such as hydrolysis acidification, anaerobic fermentation, biogas purification, biogas decarbonization, biogas residue dewatering, fertilizer preparing, and sewage treatment. According to the present invention, on the basis of the original garbage incineration power generation system, by using the mechanical sorting way, the biomass having the content of more than 50% and providing the incineration power generation contribution of less than 10% in the domestic garbage is selected to perform anaerobic fermentation, such that the incineration power generation is easily achieved, and the additional natural gas energy source and the organic fertilizer resources can be obtained.