Compatible additive for inhibiting volatilization of chlorine salt in fly ash sintering process and fly ash treatment method

• Main Authors: QIAN GUANGREN, LONG XIANGXING, SU HONGBING
• Format: Patent
• Language: Chinese; English
• Published: 22.03.2024
• Subjects: DISPOSAL OF SOLID WASTE; PERFORMING OPERATIONS; RECLAMATION OF CONTAMINED SOIL SOIL; TRANSPORTING

The invention relates to a compatible additive for inhibiting volatilization of chlorine salt in a fly ash sintering process and a fly ash treatment method. The compatible additive comprises 3-10 wt% of a melting point reducing material, 20-47 wt% of a silicon-aluminum auxiliary material, 10-15 wt% of an organic molding auxiliary material and the balance of a core temperature reinforcing agent. The fly ash treatment method comprises the following steps: fully mixing fly ash, a compatible additive and water to form a fly ash compatible mixture; compacting and molding the fly ash compatible mixture under the pressure of not less than 15 Mpa to form a fly ash compatible mixed block; by means of a fly ash generating furnace, the fly ash product and the fly ash compatible mixed block are co-fired in the hearth temperature environment of 850 DEG C or above, fly ash product slag and fly ash compatible sintered blocks are formed, and the fly ash product slag and the fly ash compatible sintered blocks are rapidly cool