Preparation Of Foam Insulation Board For Industrial Waste Residue

With the deterioration of environmental pollution and the massive consumption of natural resources,people put forward higher requirements on building materials related to personal safety,green and environmental protection.A large number of industrial wastes are used to produce new building materials,which not only solves the problem of comprehensive utilization of industrial wastes;Can produce the building material of green environmental protection again,have very important social sense and economic benefit.In this paper,the main use of coal gangue,polishing powder industrial waste residue and waste glass,add the right amount of fluxing agent,foaming agent,stabilizing agent and other auxiliary materials,and forming technology on preparation of blank,by controlling the roasting system,regulate the density of foam insulation board,strength,porosity,coefficient of thermal conductivity and the pore characteristics,optimize the preparation of industrial waste heat preservation plate of the main raw materials,formulation,molding technology and system of roasting process,after a pilot experiment,achieve the purpose of to guide industrial production.The influence of the proportion of gangue powder and glass powder,sintering temperature system,cosolvent,foaming agent and foam stabilizer on the properties of gangue thermal insulation board was studied in the development of gangue thermal insulation board.This paper analyzes the strength,thermal conductivity,porosity,pore characteristics,volume density and other parameters of gangue thermal insulation plate,and formulates the optimal raw material proportion and optimal process system of gangue thermal insulation plate.The experimental results show that the main raw material proportion of gangue thermal insulation plate is 30:70,SiC as the cosolvent.Foaming agent 5%,stable foam agent 2%,fluxing agent 3%,sintering process for the initial temperature of 50 to 500?,temperature 60 min;500?to 900?,the temperature 45 min,insulation 20 min;900? to 1000?,the temperature 45 min,insulation at 1000? for 20 min,preparation of the coal gangue heat preservation plate volume density of 830 kg/,m3,coefficient of thermal conductivity is 0.2830 w/(m·k),the compressive strength is 0.925 MPa,bibulous rate is 7.62%.The proportion of main raw materials,foaming temperature and foaming time were studied in the research of the polishing stone insulation board.The influence of sintering temperature and sintering time on the properties of heat preservation board.Through the characterization of the properties of polished stone insulation board,the raw material proportion and production process of polished stone insulation board were determined.The analysis of experimental results shows that:when the proportion of waste glass powder to polished stone powder is 40:60,the ratio of raw materials is the best.Burning system of the basic process to preheat to 500?,and then increased to 850±25? for making glass melt foaming in full,and then after the temperature rise to 1100±50?sintering molding,preparation of polishing powder insulation plate volume density is 600?800 kg,m3,coefficient of thermal conductivity is 0.20 w/(m·k),the compressive strength of 2.3 MPa.During the pilot test of polished stone powder insulation board,by further adjusting the proportion of raw materials and optimizing the roasting process,the thermal conductivity of the product is 0.06?0.09w/(m·k),the volume density is 160?280 kg/m3,the compressive strength is 3.5?8.Ompa,the water absorption rate is less than 5%,and the fire resistance of the production of insulation board is Al.According to the relevant national standard design of insulation plate construction process,and has been applied in engineering.