Orthogonal experimental study to optimise the combustion conditions of blended municipal sludge and cotton stalks
Taking heat generation as the evaluation index,the orthogonal experiment was used to optimize the combustion conditions of blending municipal sludge and cotton stalks.The result showed that the pri-mary and secondary factors affecting the heat generation of the sludge mixture were cotton stalks blending ratio＞stirring time＞particle size of blending,and the optimal blending conditions were 40％of cotton stalks blending,stirring time of 5 min,and blending particle size of 0.075 mm.Under optimal mixing con-ditions,the ignition and combustion temperatures of urban sludge were significantly reduced,the heat gen-eration was increased by 34％,the comprehensive combustion characteristic index was increased by 3.97 times,the activation energy was reduced by 12.74 kJ/mol,and the sludge and cotton stalks were in the stage of positive facilitation in the combustion process almost the whole time.
万方数据
维普
