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China 's huge garbage and municipal sludge production , incineration is one of the effective ways to waste resources , reduction , harmless , but garbage and sludge has a complex composition and high moisture content and other characteristics , it is difficult to achieve direct incineration . High calorific value with low calorific value fuel mixing heat value in a complementary manner , can improve the combustion characteristics of the low calorific value fuel . Based on pre- orthogonal experiment upcoming pretreated waste , municipal sludge and coal are mixed , and mixed with a certain amount of accelerant and desulfurizer , processing of solid fuels . Verify the preliminary results were to sum ??up the inadequacies of the adjustment of test factors and levels , to optimize the test . A ( garbage: pulverized coal ) , B ( sludge ) , C ( sawdust ) , D ( accelerant MnO2) , E ( calcium hydroxide ) as a control factor, the content of the different factors for horizontal press L16 (45) orthogonal table orthogonal experiment . Determination of the compressive strength of the briquette , soaking strength, flooding the multiplex dry strength , thermal stability, thermal value , desulfurization rate , and chlorine-fixativity rate, the average effect of orthogonal and engineering analysis . Select the best combination of the test , Nissan 35t solid fuel , for example , the proposed budget per ton of fuel costs . The conclusions were as follows : (1 ) validation test : the complex dry strength and thermal stability are greater than the maximum index value of the orthogonal table , other indicators measured values ??were less than the maximum index value . ( 2) to optimize the test : compared with the pre- test , the fuel mechanical properties ( compressive strength , flooding intensity and complex dry strength ) and sulfur retention rate maximum , but the thermal stability and lower heat value , especially in the heat-stable reduced significantly . Various factors , C - factors ( sawdust ) impact on the calorific value of the largest and the most influential factors of other indicators are subject to A ( garbage : pulverized coal ) . ( 3) cost estimates: in accordance with the the fuel forming process and the scale of production , the selection of equipment and staffing , the calculated fuel costs 366.592 yuan / ton , the lowest price of coal is about 700 yuan / ton , briquette about 450 yuan / ton . Accounting , release the same heat , lower the cost of solid waste fuel consumption .
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