Optimization Of Control System For Municipal Solid Waste Reciprocating Machinery Incinerator

Incineration technology is an effective method for recycling treatment andharmless disposal of municipal solid waste (MSW). The mechanical incinerationgrate is playing the dominant role in incineration technology in China currently, andthe relevant incineration systems and equipment mainly need to be imported fromabroad. Therefore, the automatic control systems in the relevant incineration systemsand equipment need to be redesigned to reach the requirement of Chinese local solidwaste. Automatic combustion control system is the core component in theincineration combustion process, and the quality of this system will directly influencethe performance of the incinerator as well as the stream quantity, which will furtherimpact the flue gas pollutant concentrations and the electricity generation.Therefore, it is significant to make indigenization of the automatic combustioncontrol system in China based on the mature technologies application and thesuccessful operation practices. The development of advanced automatic controlhardware and control strategy will reduce the cost of incineration power plants andoptimize the waste to energy technologies.The purpose of the study was to optimize the movement of the grate segment andair blowing system, in order to solve the actual problems found in the operation ofSeghers incineration grate and its SIGMA control system. To achieve this purpose,the logical commands, the visual interface software of the primary and the secondaryair pumps were developed to settle the problems of unbalanced feeding andnon-homogeneous distribution. The operating dataset showed that the400t/dmechanical incineration grate could increase waste input of23t/d.A predictive model was given to optimize the grate parameters based on the“Pattern recognition-artificial neural network” methodology and the massiveoperation data. The results showed that the incineration furnace temperature could increase14.82℃and the stream generated could increase89t/d after the designoptimization under the same conditions.However, because of the complexity of the waste combustion control system, thisstudy only discussed the optimization of the grate segment operation and air blowingcontrol strategy. The complete control of automatic waste combustion system and theautomatic pollutant removal, such as promoting the efficiency, should be researchedin the future.