Abstract
Laboratory testing was conducted to evaluate the performance of a pilot-scale, plate-and-frame filter press for dewatering anthracite refuse slurry. The fully automated filter press is equipped with a hydraulic system, which operates the plates and diaphragm feed pumps. The unit contains a single set of plates having a filtration area of 0.45 m x 0.45 m. A sample was collected from an anthracite cleaning plant's thickener underflow stream, which was feeding a belt-filter press at approximately 24% solids by weight. The sample was a nominal -0.21 mm and had an ash value of 53%. It contained approximately 50% of-0.025 mm material with an ash value of 68%. Filter tests were carried out to evaluate the effects of feed solids concentration, filter time, air-drying time, and air-blow pressure on filtrate flow and solids content, final cake moisture, and cake throughput. The typical operating pressure was approximately 860 kPa. It was found that the filtering time and drying time had the most significant effects on product moisture and unit capacity. Product moistures less than 25% with filtrate solids contents less than 0.2% solids by weight were obtained in many cases with moisture contents less than 20% possible.
| Original language | English (US) |
|---|---|
| Title of host publication | International Coal Preparation Congress 2010, Conference Proceedings |
| Pages | 516-524 |
| Number of pages | 9 |
| State | Published - 2010 |
| Event | 16th International Coal Preparation Congress, ICPC 2010 - Lexington, KY, United States Duration: Apr 25 2010 → Apr 30 2010 |
Other
| Other | 16th International Coal Preparation Congress, ICPC 2010 |
|---|---|
| Country/Territory | United States |
| City | Lexington, KY |
| Period | 4/25/10 → 4/30/10 |
All Science Journal Classification (ASJC) codes
- Economic Geology
- Geotechnical Engineering and Engineering Geology