| 摘要 |
<p>The invention is in the field of power engineering, specifically the thermal processing of coal, and can be used in thermal power plants for refining low-grade coal to produce environmentally clean synthesis gas. To enhance the fuel's reactivity and increase the output of synthesis gas, a portion of fuel undergoes electro-thermo-chemical preparation in advance; this involves directing the dust-air mixture through preparation chambers (PC) (2 and 3). There a stream of low-temperature plasma is generated, and the combustion products are then directed towards the reaction chamber (RC) (1), into which the main stream of pulverised fuel and gasifying agent are tangentially introduced, and complete gasification of the fuel occurs. The installation for applying this method comprises a vertically positioned reaction chamber (RC) (1) whose lower part is linked with at least two preparation chambers (PC) (2 and 3), placed diametrally for advance electro-thermo-chemical processing of the fuel. Each preparation chamber (PC) is made as a muffle (4) with a built-in plasma generator (5) and the muffles (4) are connected to the reaction chamber (RC) (1) tangentially and face-to-face. The means for introducing into the reaction chamber (RC) (1) the main stream of coal dust and gasifying agent are positioned diametrally and are tangentially connected to the reaction chamber (RC) (1).</p> |
