| Document ID (ISN) | 31297 |
| CIS number |
79-693 |
| ISSN - Serial title |
0026-5160 - American Mining Congress Journal |
| Year |
1978 |
| Convention or series no. |
|
| Author(s) |
Hoelter H. |
| Title |
Underground use of dust scrubbers. |
| Bibliographic information |
Mar. 1978, Vol.64, No.3, p.46-49. Illus. |
| Abstract |
This article surveys recent developments in wet dust collectors and a new compact dry dust collector for use in underground coal mines. The aspects of efficiency of removal of dust-laden air from the face area are studied, comparing conditions in the USA and in Europe. The article considers the use of a dust collecting enclosure or hood on a rotary crusher and on a conveyor belt transfer point and describes a dust collector arrangement for a tunnel boring machine. The inferiority of dry collectors (filter and cyclone types) underground is emphasised and the test findings on a wet dust collector recently developed in West Germany are given, stressing the adjuvant role of turbulence in the collector in the wetting of particles and illustrating the principle of a horizontal centrifugal separator for separating dust-laden micro-droplets from the air flow. The author claims that high-pressure wet collector systems have 99.99% efficiency. A prototype dry dust collector with a specially impregnated tough filter fabric, currently being tested, is described. |
| Descriptors (primary) |
airborne dust; coal mining; dust collectors; local exhaust |
| Descriptors (secondary) |
centrifugal dust collectors; description of equipment; collection efficiency; wet dust collectors; filter dust collectors |
| Document type |
- |
| Subject(s) |
Dust, aerosols and related diseases
|
| Broad subject area(s) |
|
| Browse category(ies) |
Ventilation
Mining and quarrying
|
