The Effect of the Characteristics of the Partition Plate Unit on the Separating Process of −6 mm Fine Coal in the Compound Dry Separator
Although compound dry separation technology has been applied to industrial applications for +6 mm size fraction of coal separation, the technology has not been widely applied in the separation of fine coal (−6 mm). In this study, the effect of the partition plate unit characteristics on bo...
Main Authors: | , , , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
MDPI AG
2019-04-01
|
Series: | Minerals |
Subjects: | |
Online Access: | https://www.mdpi.com/2075-163X/9/4/215 |
id |
doaj-a3134730cb6d44df82baaf09239e9eea |
---|---|
record_format |
Article |
spelling |
doaj-a3134730cb6d44df82baaf09239e9eea2020-11-24T20:42:10ZengMDPI AGMinerals2075-163X2019-04-019421510.3390/min9040215min9040215The Effect of the Characteristics of the Partition Plate Unit on the Separating Process of −6 mm Fine Coal in the Compound Dry SeparatorChangshuai Chen0Longlong Wang1Zhenfu Luo2Yuemin Zhao3Bo Lv4Yanhong Fu5Xuan Xu6Key Laboratory of Coal Processing and Efficient Utilization of Ministry of Education, China University of Mining & Technology, Xuzhou 221116, ChinaKey Laboratory of Coal Processing and Efficient Utilization of Ministry of Education, China University of Mining & Technology, Xuzhou 221116, ChinaKey Laboratory of Coal Processing and Efficient Utilization of Ministry of Education, China University of Mining & Technology, Xuzhou 221116, ChinaKey Laboratory of Coal Processing and Efficient Utilization of Ministry of Education, China University of Mining & Technology, Xuzhou 221116, ChinaKey Laboratory of Coal Processing and Efficient Utilization of Ministry of Education, China University of Mining & Technology, Xuzhou 221116, ChinaKey Laboratory of Coal Processing and Efficient Utilization of Ministry of Education, China University of Mining & Technology, Xuzhou 221116, ChinaKey Laboratory of Coal Processing and Efficient Utilization of Ministry of Education, China University of Mining & Technology, Xuzhou 221116, ChinaAlthough compound dry separation technology has been applied to industrial applications for +6 mm size fraction of coal separation, the technology has not been widely applied in the separation of fine coal (−6 mm). In this study, the effect of the partition plate unit characteristics on both the average density of particles in the bed uniformly and the final separation results in a fine coal separation process were studied. According to the results, the standard deviations of the corresponding density distribution were 0.08, 0.14, and 0.07 when the height of the partition plate was 2.5 cm, the partition plate angle was 35°, and the distance from the apex of partition plate on the backplane, was 12 cm, respectively, which were the lowest values at the same level. These results showed that the average density of particles in the bed was uniformly, and its corresponding density distribution contour map was more regular. When the amplitude was 2.8 mm, the frequency was 29 Hz, the height of the partition plate was 2.5 cm, the partition plate angle was 35°, and the distance from the apex of the partition plate to the backplane was 12 cm; as a result, the <i>E</i> value was 0.115 g/cm<sup>3</sup>, the yield of the concentrate was 69.24%, the ash content was 12.52%, and the separation effect was better. The characteristics of the partition plate unit have an important effect on the separating process of −6 mm fine coal in the compound dry separator.https://www.mdpi.com/2075-163X/9/4/215compound dry separationpartition plate unitbed densityfine coal |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Changshuai Chen Longlong Wang Zhenfu Luo Yuemin Zhao Bo Lv Yanhong Fu Xuan Xu |
spellingShingle |
Changshuai Chen Longlong Wang Zhenfu Luo Yuemin Zhao Bo Lv Yanhong Fu Xuan Xu The Effect of the Characteristics of the Partition Plate Unit on the Separating Process of −6 mm Fine Coal in the Compound Dry Separator Minerals compound dry separation partition plate unit bed density fine coal |
author_facet |
Changshuai Chen Longlong Wang Zhenfu Luo Yuemin Zhao Bo Lv Yanhong Fu Xuan Xu |
author_sort |
Changshuai Chen |
title |
The Effect of the Characteristics of the Partition Plate Unit on the Separating Process of −6 mm Fine Coal in the Compound Dry Separator |
title_short |
The Effect of the Characteristics of the Partition Plate Unit on the Separating Process of −6 mm Fine Coal in the Compound Dry Separator |
title_full |
The Effect of the Characteristics of the Partition Plate Unit on the Separating Process of −6 mm Fine Coal in the Compound Dry Separator |
title_fullStr |
The Effect of the Characteristics of the Partition Plate Unit on the Separating Process of −6 mm Fine Coal in the Compound Dry Separator |
title_full_unstemmed |
The Effect of the Characteristics of the Partition Plate Unit on the Separating Process of −6 mm Fine Coal in the Compound Dry Separator |
title_sort |
effect of the characteristics of the partition plate unit on the separating process of −6 mm fine coal in the compound dry separator |
publisher |
MDPI AG |
series |
Minerals |
issn |
2075-163X |
publishDate |
2019-04-01 |
description |
Although compound dry separation technology has been applied to industrial applications for +6 mm size fraction of coal separation, the technology has not been widely applied in the separation of fine coal (−6 mm). In this study, the effect of the partition plate unit characteristics on both the average density of particles in the bed uniformly and the final separation results in a fine coal separation process were studied. According to the results, the standard deviations of the corresponding density distribution were 0.08, 0.14, and 0.07 when the height of the partition plate was 2.5 cm, the partition plate angle was 35°, and the distance from the apex of partition plate on the backplane, was 12 cm, respectively, which were the lowest values at the same level. These results showed that the average density of particles in the bed was uniformly, and its corresponding density distribution contour map was more regular. When the amplitude was 2.8 mm, the frequency was 29 Hz, the height of the partition plate was 2.5 cm, the partition plate angle was 35°, and the distance from the apex of the partition plate to the backplane was 12 cm; as a result, the <i>E</i> value was 0.115 g/cm<sup>3</sup>, the yield of the concentrate was 69.24%, the ash content was 12.52%, and the separation effect was better. The characteristics of the partition plate unit have an important effect on the separating process of −6 mm fine coal in the compound dry separator. |
topic |
compound dry separation partition plate unit bed density fine coal |
url |
https://www.mdpi.com/2075-163X/9/4/215 |
work_keys_str_mv |
AT changshuaichen theeffectofthecharacteristicsofthepartitionplateunitontheseparatingprocessof6mmfinecoalinthecompounddryseparator AT longlongwang theeffectofthecharacteristicsofthepartitionplateunitontheseparatingprocessof6mmfinecoalinthecompounddryseparator AT zhenfuluo theeffectofthecharacteristicsofthepartitionplateunitontheseparatingprocessof6mmfinecoalinthecompounddryseparator AT yueminzhao theeffectofthecharacteristicsofthepartitionplateunitontheseparatingprocessof6mmfinecoalinthecompounddryseparator AT bolv theeffectofthecharacteristicsofthepartitionplateunitontheseparatingprocessof6mmfinecoalinthecompounddryseparator AT yanhongfu theeffectofthecharacteristicsofthepartitionplateunitontheseparatingprocessof6mmfinecoalinthecompounddryseparator AT xuanxu theeffectofthecharacteristicsofthepartitionplateunitontheseparatingprocessof6mmfinecoalinthecompounddryseparator AT changshuaichen effectofthecharacteristicsofthepartitionplateunitontheseparatingprocessof6mmfinecoalinthecompounddryseparator AT longlongwang effectofthecharacteristicsofthepartitionplateunitontheseparatingprocessof6mmfinecoalinthecompounddryseparator AT zhenfuluo effectofthecharacteristicsofthepartitionplateunitontheseparatingprocessof6mmfinecoalinthecompounddryseparator AT yueminzhao effectofthecharacteristicsofthepartitionplateunitontheseparatingprocessof6mmfinecoalinthecompounddryseparator AT bolv effectofthecharacteristicsofthepartitionplateunitontheseparatingprocessof6mmfinecoalinthecompounddryseparator AT yanhongfu effectofthecharacteristicsofthepartitionplateunitontheseparatingprocessof6mmfinecoalinthecompounddryseparator AT xuanxu effectofthecharacteristicsofthepartitionplateunitontheseparatingprocessof6mmfinecoalinthecompounddryseparator |
_version_ |
1716823011053535232 |