摘要
由于印染污泥、市政污泥、河涌污泥等均含有一定热值,既是制砖原料,也是燃料,经"泥水一体化"脱水工艺将水分脱至55%左右,按比例加入页岩、炉渣等,充分练泥混合、采用高挤出压力、高真空度和低成型含水率的双级真空硬塑挤出机制出砖坯,烘干处理、烧制后制成市政用砖。
Urban sludge contains a certain calorific, so can be used as fuel and raw material for making brick. First, sludge is dehydrated to about 55%, and mixed into shale and slag, etc. in proportion: secondly well kneaded and extruded into green bricks by double vacuum still extruder, after that, they are dried and fired into final products.
出处
《砖瓦》
2012年第5期5-10,共6页
Brick-tile
关键词
污水处理
城市污泥
烧结砖
资源化
泥水一体化
建筑节能
sewage treatment, urban sludge, fired brick, resource use, integration of sludge-swage, energy conservation of building