CAJ | 학술논문

为制备中低温热解用型煤，以我国典型低阶烟煤神木煤为原煤，以煤焦油重质组分及沥青为黏结剂，研究成型压力、水分、黏结剂种类及添加量对型煤冷热强度的影响，考察复合黏结剂配比对型煤冷热强度的影响规律。结果表明：型煤的强度随着压力和水分的增加呈先增大后减小的趋势；黏结剂种类对型煤强度的影响作用不同，煤焦油和煤沥青添加量的增加分别增强了冷强度和热强度；在成型水分13%、成型压力141 MPa、煤焦油重质组分质量分数9%和煤沥青质量分数为16%的优化工艺条件下，型煤的冷、热强度均较优，可以满足中低温热解直立炭化炉对原料的要求。
위제비중저온열해용형매，이아국전형저계연매신목매위원매，이매초유중질조분급력청위점결제，연구성형압력、수분、점결제충류급첨가량대형매랭열강도적영향，고찰복합점결제배비대형매랭열강도적영향규률。결과표명：형매적강도수착압력화수분적증가정선증대후감소적추세；점결제충류대형매강도적영향작용불동，매초유화매력청첨가량적증가분별증강료랭강도화열강도；재성형수분13%、성형압력141 MPa、매초유중질조분질량분수9%화매력청질량분수위16%적우화공예조건하，형매적랭、열강도균교우，가이만족중저온열해직립탄화로대원료적요구。
In order to prepare briquette for pyrolysis at mid-low temperature,Shenmu coal which was typical low rank coal was adopted as the sample,the heavy component of coal tar and asphalt were used as binder. The effects of briquetting pressure,moisture,binder types and additive amount on cold strength and thermal strength of briquette were studied. The influence rule of binders ratio on the cold and hot strength of briquette was investigated. The results showed that,with the increase of pressure and moisture,the briquette strength increased first,then decreased. Different binders had different influences on briquette properties. The increase of coal tar and asphalt enhanced the cold and hot strengthen of briquette. When the briquette moisture was 13%,the briquetting pressure was 141 MPa,the mass fraction of coal tar and asphalt was 9% and 16% respectively,the briquette had better performance,which met the demands of mid-low tempera-ture pyrolysis in vertical carbonization furnace.