付东升;郑化安;杨阳;张云;王文婧;
FU Dongsheng;ZHENG Huaan;YANG Yang;ZHANG Yun;WANG Wenjing;Shaanxi Coal and Chemical Technology Institute Co. ,Ltd.;

• 1:陕西煤业化工技术研究院有限责任公司

摘要(Abstract)：

为解决粉煤固体热载体热解工艺中焦粉无法直接利用,易造成粉尘污染等问题,采用高分子聚合物复配制得SCC-2型复合黏结剂,研究了固体热载体热解焦粉的成型工艺,分析了型焦的物化性质。结果表明:固体热载体热解焦粉最佳成型工艺条件为:固体热载体热解焦粉-3 mm质量分数大于80%;SCC-2型复合黏结剂质量分数为30%,添加量为焦粉质量的15%²0%。采用SCC-2型复合黏结剂成型的型焦灰分和固定碳略有增加、发热量升高;冷压强度、落下强度和浸水强度均较高,分别达到580 N/个、83%和220 N/个;型焦热稳定性和防水性能好,化学反应性随温度的升高而增大,1 000℃时还原率可达96%,满足工业生产要求。型焦可代替部分块炭使用,有效解决了固体热载体热解焦粉再利用难题,具有较好的推广应用前景。
To direct use fine coke in the process of fine coal pyrolysis with solid heat carrier and reduce pollution,introduce the SCC-2compound binder which is made from several polymer compounds,research the briquetting technologies and physical and chemical properties of formed coke. The results show that,when the-3 mm particles in fine coke is over 80 percent,the mass fraction of SCC-2 compound binder is 30 percent,the mass of binder account for 15% to 20% of the amount of fine coke,the briquetting effect is the best. Due to the SCC-2 type binder,the ash,fixed carbon,calorific value of formed coke increase,the performances of the dried formed coke,the compression strength,dropping strength,compressive strength after immersion of dried formed coke is 580 N per one,83 percent,220 N per one. Its heat stability and water resistance is excellent,its chemical reactivity increase with the rise of temperature,when the temperature is1000 ℃,the reduction rate can reach 90 percent. The formed coke also can partly replace carbon block,so the new type binder has broad application prospects.

关键词(KeyWords)： 固体热载体;焦粉;复合黏结剂;型焦;成型工艺
solid heat carrier;fine coke;compound binder;formed coke;briquetting technology

Abstract:

Keywords:

基金项目(Foundation): 陕西煤业化工集团有限责任公司基础研究基金资助项目(2013YJY-N-Y-C007)

作者(Authors): 付东升;郑化安;杨阳;张云;王文婧;
FU Dongsheng;ZHENG Huaan;YANG Yang;ZHANG Yun;WANG Wenjing;Shaanxi Coal and Chemical Technology Institute Co. ,Ltd.;

DOI: 10.13226/j.issn.1006-6772.2014.02.012

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