NID半干法脱硫灰生产蒸压砖中试实验研究

Pilot study of autoclaved brick production with semi-dry FGD byproduct

为了实现NID半干法脱硫灰综合利用,对利用吉林某电厂NID半干法脱硫灰作为主要原料在现有生产线生产蒸压砖进行研究,中试实验结果表明,在对现有生产线的各工艺参数进行调整及配方优化下,可以解决直接利用NID半干法脱硫灰为蒸压砖主要原材料所产生的诸如层裂、龟裂、强度低等问题,生产出30%NID半干法脱硫灰添加量的蒸压砖。并在对NID半干法脱硫灰进一步预处理下,生产出40%NID半干法脱硫灰添加量的蒸压砖。产品满足国家M15标准规定的外观、强度及抗冻融性等指标。

Pilot study of autoclaved brick production was conducted with semi-dry FGD byproduct addition in the production line. The problems,such as laminations' layer crack,weak strength,can be solved by adjusting parameters of the production line and brick making formulation. Autoclaved brick production with 30%semi-dry FGD byproduct addition and with 40% pre-treated semi-dry FGD byproduct addition can be achieved in this pilot study. The brick products produced can meet the national standard requirements.