CAJ | 학술논문

神府煤属于低变质的不黏结煤，低灰、低硫、高内水，煤质特性致使其难以制备成高浓度、低黏度的水煤浆。为了提高神府煤水煤浆浓度，基于粒度级配理论，在神府煤水煤浆制备中加入超细煤粉，通过干法成浆筛选不同粒径煤粉的最佳配比以及2种添加剂的复配比例，探讨了不同粒径的超细神府煤粉对水煤浆黏度和稳定性的影响。结果表明：添加剂 TJJ1与 TJJ2的质量比为4︰1时对水煤浆具有较好的分散效果，当3种粒径煤粉的质量分数比例为 W125~200︰（Wd50=12μm ︰ Wd50=6.5μm ）=40︰（60︰40）时，制备的神府煤水煤浆浓度接近70%，黏度低于1200 mPa·s，稳定性为 B 级，水煤浆可满足工业使用要求。
신부매속우저변질적불점결매，저회、저류、고내수，매질특성치사기난이제비성고농도、저점도적수매장。위료제고신부매수매장농도，기우립도급배이론，재신부매수매장제비중가입초세매분，통과간법성장사선불동립경매분적최가배비이급2충첨가제적복배비례，탐토료불동립경적초세신부매분대수매장점도화은정성적영향。결과표명：첨가제 TJJ1여 TJJ2적질량비위4︰1시대수매장구유교호적분산효과，당3충립경매분적질량분수비례위 W125~200︰（Wd50=12μm ︰ Wd50=6.5μm ）=40︰（60︰40）시，제비적신부매수매장농도접근70%，점도저우1200 mPa·s，은정성위 B 급，수매장가만족공업사용요구。
In order to improve Shenfu coal water slurry(CWS)concentration and overcome the preparation problems due to the bad coal properties such as low ash and sulfur content,high internal water,the ultra-fine Shenfu coal fines was added to the CWS according to the particle gradation theory. The optimum proportion of different particle size and ratio of two additives were optimized via dry CWS prepara-tion process. The influence of different size ultra-fine Shenfu coal fines on viscosity and stability of CWS was researched. The results showed that,when the mass ratio of TJJ1 and TJJ2 was 4 ︰ 1,the dispersity of CWS was the best,When the mass ratio of W125 ~ 200 and Wd50 =12μm and Wd50 =6. 5μm was 40 ︰ 60 ︰ 40,the concentration of CWS was about 70% ,the viscosity was below 1200 mPa·s,the stability was B which met the industrial requirements.