Experimental study on melting waste incineration fly ash to produce thermal insulation fibers
Manucipal solid waste incineration fly ash contains metal oxide components such as Ca,Si,Al,Na,etc.This paper proposes a method for producing insulation fibers by melting waste incineration fly ash with waste incineration slag and waste glass.The pilot test results show that the addition of auxiliary materials reduces the melting point of the mixed material and increases the viscosity of the melt magma.When the fly ash alone or the fly ash ratio is too high,fiber cannot be formed.As the speed of the four roller centrifuge increases,the average diameter of the fiber will become finer.Using the formula of 80%fly ash+20%slag,the average diameter of the fiber will decrease to 6.04 μm when the four roller speeds are 3960 r/min,3960 r/min,4290 r/min,and 4620 r/min,respectively.The heavy metals in the insulation fibers obtained by melting were effectively fixed,and the removal rates of Cr,As,and Pb reached 87.6%,96.7%,and 99.9%,respectively.
municipal waste incineration fly ashinsulation cottonmeltviscosityfiber diameterslag
万方数据
维普
