The invention belongs to the field of waste treatment technology, and particularly relates to a harmless treatment system for solid waste. The system sequentially includes a light plastic primary sorting device, a feeding device, a horizontal rotary grading sieve, a sealed drying container, a waste collector and a gasifier. Both ends of the grading sieve are open, and the sealed drying container is arranged on the outer side. A heat supply pipeline is connected between the drying container and the combustion chamber of the gasifier. A light plastic discharge port is arranged at the feeding end of the grading sieve and connected with a plastic collection chamber, an exhaust fan and a waste gas purifier. The grading sieve is divided into three segmented sections from front to rear. The sealed drying container is provided with a fine particle silo and other aggregate silos respectively. The fine particle silo is connected to an organic fertilizer fermentation tank, while other aggregate silos are sequentially connected with a metal recycling machine, an integrated crushing and sorting machine and an inorganic waste treatment tank. The system performs multiple sorting on waste plastics, conducts gasification combustion on combustible waste, and realizes classified utilization of other wastes with high efficiency and environmental friendliness. It avoids dioxin air pollution caused by traditional plastic gasification processes and achieves thorough harmless disposal.

Country Code: CN

Application Number: CN201611161912.2