Search

Copyright of Experimental Technology & Management is the property of Experimental Technology & Management Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Mining Magazine is the property of China Mining Magazine Co., Ltd. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Experimental Technology & Management is the property of Experimental Technology & Management Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Coal Geology & Exploration is the property of Xian Research Institute of China Coal Research Institute and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Coal Science & Technology (0253-2336) is the property of Coal Science & Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Experimental Technology & Management is the property of Experimental Technology & Management Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The flotation microscopic model considers that the attachment behavior of coal particles and bubbles is the key step to achieve flotation. Therefore, the direct research on attachment behavior is very important. A device was designed by ourselves to directly measure the attachment behavior of coal particles and bubbles. In this paper, the raw coal of Inner Mongolia Gongwusu was taken as the experiment subjects and the attachment behavior of 0. 1-0. 15 mm coal samples with different densities was directly observed. Then, it was analised by the multi-target tracking software. The results showed that coal particles would flowed around the bubble before collision occurrence, and the velocity and direction of coal particles would changed. The velocity of coal particles decreased to minimum when coal particles colliding with bubble. The sliding velocity of coal particles on the bubble surface firstly increased gradually, and sliding velocity reached the maximum at the bubble "equator" position. After crossed the "equator", the sliding velocity of coal particles gradually decreased, and finally coal particles attached to the bottom of the bubble. The attachment efficiency of coal particles and bubbles decreased with the increase of collision angle. At the same collision angle, the attachment efficiency and the critical attachment angle decreased with the increase of coal density. With the increase of terminal velocity, both the attachment efficiency and the critical attachment angle decreased. Therefore, the regulation of the attachment efficiency of different density was verified. [ABSTRACT FROM AUTHOR]