炼焦中煤浮选药剂的试验研究
|
摘要
为解决选煤厂中煤产量高,煤炭资源浪费严重的问题,以开滦矿区钱家营选煤厂浮选中煤为研究对象,采用新型H70(捕收剂—H707,起泡剂—H708)系列浮选药剂进行试验,并与钱家营选煤厂原有浮选药剂(捕收剂—柴油,起泡剂—杂醇)的浮选效果进行对比。试验结果表明:在两种药剂用量相当的条件下,H70系列药剂的浮选精煤产率比原有药剂的浮选精煤产率提高了10个百分点,尾煤灰分提高5～8个百分点,可燃体回收率提高了8～10个百分点。
Qianjiaying Coking Coal Preparation Plant produces each year a large amount of middling product, causing therefore a substantial waste of coal resources. To tackle this problem, test is conducted on the flotation of the plant′s middling product of flotation circuit using the new-type H70 series agents(collector—H707, frother—H708), and the effect of flotation is compared with that obtained by using the original agents(collector—diesel and frother—fusel). Test result shows that when the two kinds of agents are used with the same dosage, use of the H70 series agents can lead to an increase of yield of concentrate, and ash of tailings and combustible matters, which are 10 percentage points, 5～8 percentage points and 8～10 percentage points higher respectively than those when the former agents are used.
Qianjiaying Coking Coal Preparation Plant produces each year a large amount of middling product, causing therefore a substantial waste of coal resources. To tackle this problem, test is conducted on the flotation of the plant′s middling product of flotation circuit using the new-type H70 series agents(collector—H707, frother—H708), and the effect of flotation is compared with that obtained by using the original agents(collector—diesel and frother—fusel). Test result shows that when the two kinds of agents are used with the same dosage, use of the H70 series agents can lead to an increase of yield of concentrate, and ash of tailings and combustible matters, which are 10 percentage points, 5～8 percentage points and 8～10 percentage points higher respectively than those when the former agents are used.
引文
[1] 桂夏辉,邢耀文,王波,等.煤泥浮选过程强化之一——国内外研究现状篇[J].选煤技术,2017(1):93-107.
[2] 桂夏辉,邢耀文,王英伟,等.煤泥浮选过程强化之四——易浮难选煤泥浮选过程特征篇[J].选煤技术,2017(4):92-97.
[3] 张锐,夏阳超,谭金龙,等.低阶煤分子碳结构的分析与研究[J].中国煤炭,2018,44(12):88-94,116.
[4] 魏立勇,王东岳,杨自立,等.浮选中煤磨矿解离工艺技术的研究[J].中国煤炭,2017,43(10):96-101.
[5] 李臣威,张鹏德,桂夏辉,等.炼焦中煤解离再选试验研究[J].煤炭科学技术,2016,44(10):203-209.
[6] 田全志,邢耀文,张义,等.浮选中煤絮凝浮选试验研究[J].煤炭技术,2015,34(12):265-267.
[7] 杨自立.开滦矿区浮选中煤解离-浮选工艺研究[D].徐州:中国矿业大学,2017.
[8] 邹文杰,曹亦俊,孙春宝.炼焦中煤的尺度效应及对浮选的影响[J].煤炭学报,2016,41(2):469-474.
[9] 孙凤杰,陶秀祥.炼焦中煤柱浮选试验研究[J].选煤技术,2017(6):1-4.
[10] 万宁,宋宁,包崇军,等.煤炭浮选降灰试验研究[J].选煤技术,2013(5):15-18.
[11] 郗朋,赵选选,刘文礼,等.炼焦中煤絮团-浮选抑制剂的优化试验研究[J].煤炭工程,2015,47(1):112-114.
[2] 桂夏辉,邢耀文,王英伟,等.煤泥浮选过程强化之四——易浮难选煤泥浮选过程特征篇[J].选煤技术,2017(4):92-97.
[3] 张锐,夏阳超,谭金龙,等.低阶煤分子碳结构的分析与研究[J].中国煤炭,2018,44(12):88-94,116.
[4] 魏立勇,王东岳,杨自立,等.浮选中煤磨矿解离工艺技术的研究[J].中国煤炭,2017,43(10):96-101.
[5] 李臣威,张鹏德,桂夏辉,等.炼焦中煤解离再选试验研究[J].煤炭科学技术,2016,44(10):203-209.
[6] 田全志,邢耀文,张义,等.浮选中煤絮凝浮选试验研究[J].煤炭技术,2015,34(12):265-267.
[7] 杨自立.开滦矿区浮选中煤解离-浮选工艺研究[D].徐州:中国矿业大学,2017.
[8] 邹文杰,曹亦俊,孙春宝.炼焦中煤的尺度效应及对浮选的影响[J].煤炭学报,2016,41(2):469-474.
[9] 孙凤杰,陶秀祥.炼焦中煤柱浮选试验研究[J].选煤技术,2017(6):1-4.
[10] 万宁,宋宁,包崇军,等.煤炭浮选降灰试验研究[J].选煤技术,2013(5):15-18.
[11] 郗朋,赵选选,刘文礼,等.炼焦中煤絮团-浮选抑制剂的优化试验研究[J].煤炭工程,2015,47(1):112-114.