英、美等国许多科研工作者,正在进行水射流采煤的高压水泵,增压器和高压密封的研究。他们认为,他们是在从事采煤技术革命──不用机械刀具落煤,而且几乎是无尘的,无爆炸危险的,快速的和经济的。 水射流采煤──通常称水力采煤的研究,已进行多年,但都没有取得什么效果。在苏联、英国也在积极研究,但也无什么成就。美国矿业局前几年在无烟煤矿区进行了试验,但也未创造什么奇迹。总之,在一定程度上,这种技术在私下被认为是没有发展前途的。 Many researchers from Britain, the United States and other countries are engaged in the research of high pressure water pump, supercharger and high pressure sealing of water jet coal mining. They think they are working on the technological revolution in coal mining - coal-cutting without mechanical tools and almost dust-free, explosive-free, fast and economical. Water jet mining - a study commonly referred to as hydraulic coal mining, has been going on for years, but none has yielded any results. In the Soviet Union, Britain is also actively studying, but there is no achievement. The United States Bureau of Mines a few years ago in the anthracite mining area has been tested, but it did not create any miracle. In short, to a certain extent, this technology is considered to be privately unprompted.