蒋涵元;宋万军;周瑞通;张宁;孙常松;
JIANG Hanyuan;SONG Wanjun;ZHOU Ruitong;ZHANG Ning;SUN Changsong;Washing Center of Shenhua Shendong Coal Group Co. ,Ltd.;

• 1:神华神东煤炭集团洗选中心

摘要(Abstract)：

针对保德选煤厂北部区原加介系统存在的加介周期长、加介不及时、介耗高等问题,在分析常用加介系统的基础上,设计了一种新加介工艺,并根据保德选煤厂北部区现有工艺系统、设备布置、空间结构提出具体实施方案。改造后,保德选煤厂运行状况良好,增加了重悬浮液浓度,提高加介效率和灵敏度,保证回收率和商品煤质量,降低生产成本。介耗由原来的平均0.62 kg/t降至最低0.21kg/t,降低了66.13%。因加介量减少,且浓介桶始终存有浓介质,一旦发现密度降低,可随时加介,减轻了加介工劳动强度。加介时间由每5 t介质1.57 h降至8 min,降低了91.51%,因密度低造成的分选系统跑煤、回收率低等问题得以有效控制。保德选煤厂每年可多创造效益459.52万元,达到了减员、增效、降耗的目的。
There were lots of problems in Baode coal preparation plant,such as long cycle of medium dosing period,insensitive and poor medium dosing effect. To resolve these problems,the Baode coal preparation plant design a new medium dosing process,provide detailed implement scheme based on the process system,equipment layout,spatial structure of North District. The transformation increase the concentration of dense-medium,medium dosing efficiency and sensitivity. The medium consumption decrease from 0. 62 kg / t to 0. 21 kg / t,lowering 66. 13 percent. Meanwhile,for five tons medium,the dosing period reduce from 1. 57 hours to 8 minutes,dropping 91. 51cpercent.The reduction of medium consumption lighten the intensity of labor and increase the production efficiency. The plant increase the benefits by 4. 5952 × 106yuan per year.

关键词(KeyWords)： 加介;介耗;悬浮液;回收率;浓介质;合介桶
medium dosing;medium consumption;suspension;recovery;high concentration medium;designated medium barrel

Abstract:

Keywords:

基金项目(Foundation):

作者(Authors): 蒋涵元;宋万军;周瑞通;张宁;孙常松;
JIANG Hanyuan;SONG Wanjun;ZHOU Ruitong;ZHANG Ning;SUN Changsong;Washing Center of Shenhua Shendong Coal Group Co. ,Ltd.;

DOI: 10.13226/j.issn.1006-6772.2014.02.010

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