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- Title
Measures of reducing moisture of fine clean coal in Sitai coal preparation plant.
- Authors
AN Yao
- Abstract
To reduce the moisture of fine clean coal of Sitai coal preparation plant, analyse the product composition and moisture, find that high moisture of coarse slime and filter cake are the main reasons. To resolve this problem, take the following measures. First, replace the traditional sieve bend with the intelligent vibratory one, flip the screen surface regularly, add belt to screen surface in order to slow the speed of sluny. Second, increase the sieve seam of FC1200 centrifuge from 0.375 mm to 0.500 mm and adjust the operation parameters of hydrocyclone group. Third, improve maintenance of filter and adjust process parameters promptly according to the feed concentration. Fourth, introduce a vertical filter HVPF-120 m², and increase ash to lower moisture by adding coal screening system. By these measures, the moisture of fine clean coal decrease from 15.72% to under 14.00%, which reduce the belt slipping in product transportation system and decrease the labor intensity. Beyond that, the clean coal no longer freeze the railway cars. The measures ensure the normal outward transport of Sitai coal preparation plant and saves transport costs 5.4 x 106 yuan.
- Subjects
CLEAN coal technologies; COAL preparation plants; CHEMICAL reduction; MOISTURE; FILTERS &; filtration; VIBRATION (Mechanics)
- Publication
Clean Coal Technology, 2014, Vol 20, Issue 4, p20
- ISSN
1006-6772
- Publication type
Article
- DOI
10.13226/j.issn.1006-6772.2014.04.006