摘要
以膨润土为黏结剂,采用冷压成型制备出型煤,主要研究了膨润土含量、水分、成型压力和粉煤粒度对型煤抗压强度的影响.结果表明:型煤抗压强度、灰分均与膨润土含量成正比,并得出其线性方程,可根据其工艺需要确定膨润土加入量,计算产品的灰分.水分控制在14%～16%,成型压力为40kN,膨润土含量为7%时,可制备出平均抗压强度为1 420N/个,灰分为11.7%的型煤.
The influence of bentonite content, moisture content and granularity of fine coal on the compressive strength by the binder of bentonite was studied. The results showed that the compressive strength of briqutte and ash content were proportionate to bentonite content. A liner formula was gained. Content of bentonite can be determined according to demand of process. And the ash content of the product can be calculated by the formula. When moisture content was in the range of 14%-16%, compacting pressure was 40 kN and the bentonite content was 7%, briqutte with compressive strength of 1 420 N/ball and ash content of 11.7% was syn- thesized.
出处
《煤炭转化》
CAS
CSCD
北大核心
2012年第1期65-68,共4页
Coal Conversion
基金
国家科技支撑计划研究项目(2009BAA20B02)
关键词
型煤
抗压强度
膨润土
briquette, compressive strength, bentonite
