Research On The Operational Technology For The Coordinated Disposal Of Municipal Solid Waste Incinerators And General Industrial Solid Waste

With the rapid development of domestic industry,the production of industrial solid waste has increased significantly,making the rational disposal of industrial solid waste a major challenge in the construction of ecological civilization.The traditional landfill method results in serious waste of resources and environmental pollution.Therefore,the collaborative disposal of general industrial solid waste using municipal solid waste incinerators is an important measure for reducing and recycling solid waste resources in China.In order to address the operational management issues related to the incineration of general industrial solid waste in municipal solid waste incinerators,research has been carried out on the overall scheme design,heating value regulation of incinerated materials,operational management,and control of incineration gas emissions.This research integrates the operational technologies of municipal solid waste incineration for the collaborative disposal of general industrial solid waste.(1)The corresponding collaborative disposal scheme and emergency measures for general industrial solid waste disposal were constructed based on the feeding system,incinerator system,waste heat furnace system,and flue gas treatment system of the thousand-ton incinerator in combination with the requirements of the disposal process.This included the collection and transportation scheme,garbage warehouse zoning management,combustion adjustment scheme,mixing and burning technical support,and emergency disposal scheme,aiming to ensure the safety,environmental protection,and stability of the mixing process.(2)The calorific value of industrial solid waste is much higher than that of domestic waste,which negatively affects the operation of the incinerator.By adjusting the mixing ratio and conducting water absorption experiments and multi-phase materials,the calorific value control of the furnace material was explored.It was determined that the calorific value of the furnace material should be controlled at 2600Kcal/kg,which allowed the boiler to maintain optimal operations and economic efficiency.Based on the average calorific value of industrial solid waste of 3,600Kcal/kg,the mixing ratio of domestic and industrial solid waste should not exceed 5:4.(3)The process from fuel supply to combustion adjustment was managed to optimize and adjust the general industrial solid waste mixing and burning operations.The key control points of burning flame,hot action reduction rate,and cloth thickness were explored based on the experience of household waste incineration,material characteristics of industrial solid waste mixing,and special working conditions.Determining the optimal cloth thickness of an incinerator between 600～800 mm,reflected in the DCS parameter of 35%～45%,and an exhaust air pressure of one section of 250～450pa improved the boiler efficiency.(4)The mixing ratio of industrial solid waste increased acid gas and NOx values in flue gas,as well as frequency of CO and other problems.To ensure the standard emission of flue gas pollution during general industrial solid waste mixing,the mixing ratio of industrial solid waste should not exceed the limit of 44%.Acid gas control should adhere to the principle of "lime slurry sulfur reduction,wet liquid alkali acid mainly",and NOx should be controlled by appropriately reducing the excess air coefficient and timely adjusting the optimal reaction area.The goal of reducing costs should be achieved on the basis of environmental protection standards.