澳大利亚气煤生产水煤浆的可行性研究

Feasibility of preparing coal water slurry with Australian gas coal

为解决国内制浆原料煤逐渐短缺的问题,分析了进口煤炭资源中澳大利亚煤炭的储量、产量、出口量等情况。发现通过与澳大利亚煤炭公司签订长期煤炭交易合同,无论从煤价、煤炭运输价格及关税方面都有优惠,有利于解决国内煤炭资源短缺和煤价较高的问题。通过气煤成浆性实验和工业性生产实验,发现澳大利亚煤煤质优异,可将其与国内平一煤进行配煤实验。结果表明:当两者的收到基质量比为1∶1时,制得的水煤浆浓度可达64.5%以上,黏度小于1400 mPa.s,热值大于17.562 MJ/kg,达到商品浆制浆要求,可以作为生产水煤浆的制浆煤种。

To resolve the problem of raw coal shortage, which is used for preparing coal water slurry, analyse the reserves, output and export volume of Australian coal. Find that signing long-term coal trading contract with Australian coal companies can have discount in coal price, transport price and tariff. This method also is beneficial for relieving the strain on resources and decreasing coal price. The results of slurrying experiment and industrial test show that, Australian coal property is great, which can be blended with Tianyi coal. When the as received basis mass ratio of these two components is 1 ： 1, the concentration of coal water slurry is more than 64. 5 percent, the viscosity is less than 1400 mPa ~ s, the calorific value is greater than 17. 562 MJ/kg. The blending coal can be used to prepare coal water slurry.