粉煤灰综合利用 FLY ASH COMPREHENSIVE UTILIZATION 2010NO.6 试验用 粉煤灰浮选脱碳* Removing Carbon from Fly Ash by Floatation 荣令坤，张金山 (内蒙古科技大学矿业工程学院，包头014010) 摘要：通过一系列条件试验，最终确定“一粗一扫”浮选流程，选用轻柴油做捕收剂，粗选用量4000g/ 扫选 1200g/t 仲辛醇做起泡剂，粗选用量400g/t 扫选200g/t 粗选矿浆浓度100g/L 充气量0.30m3/八m2min) 得到最终 粉煤灰产品产率65.54%，烧失量4.21%，达到1级灰标准，粗选精碳产率19.85%，灰分58%，有一定的市场价值. 关键词：粉煤灰：脱碳：浮选 中图分类号：X773 文献标识码：A文章编号：1005-8249(2010)06-0015-04 Rong Lingkun Zhang Jinshan (School of Mineral Engineering Inner Mongolia University of Science and Technology Baotou 014010) Abstract:The rougher-seavenger flotation circuit was confirmed finally through a series of conditioning tests.Light diesel oil was confirmed for collector the dosage is 4000g/t in rougher and 1200g/t in scavenger flotation.2-octanol was confirmed for the frother the dosage is 400g/t in rougher and200/t in scavenger flotation The pulp density was confirmed for100g/L aeration quantity(.30m3/m2mn the experiments goe the final fly ash product(productivity 65.54% loss on ignition 4.21%which reached the standards of tier one coal ash and the elean coal produetivity 19.85% ash content 58%which also had certain market value. Key words:Coal Ash removing Carbon floatation 粉煤灰是煤炭在发电厂锅炉中燃烧后排放的一种 人造火山灰材料.目前，全球粉煤灰的排放量之大，占 就包头市来讲，目前全市共有4个灰场累计粉煤 地之广，已经对环境造成了很大的危害.虽说粉煤灰 灰堆放量为4500万t左右，全部为电厂的湿排灰，碳 在电厂是废物，但是在建材、热工、筑路、铸造、冶金、化 含量都在14%左右，新排粉煤灰中，老机组仍然采用 工、环保等传统工业以及高科技领域有着广泛的应用，的是湿式排灰，品质仍然属于碳含量高的Ⅲ级粉煤灰. 尤其是在建材行业.但根据GB1596-1991《用于水泥 新机组多采用煤粉炉燃烧工艺，电除尘干式排灰，碳含 和混凝土中的粉煤灰》，水泥混合材用粉煤灰烧失量 量显著降低，一般低于5%，其中1级...
粉煤灰浮选脱碳.pdf
