一种凝聚型抑尘剂的制备及性能测试
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摘要
基于接枝共聚理论的不断发展和应用,提出以淀粉、膨润土作为基体,丙烯酰胺作为单体,用过硫酸钾作为引发剂,N,N′-亚甲基双丙烯酰胺作为交联剂,利用膨润土比表面积高及吸附性能好的优势,制备一种凝聚型抑尘剂。用单因素实验测试选出产物的最优配比,以接触角实验测试产物的润湿性,以产物作用于煤粉表面的实际凝聚效果分析产物的作用机理,以扫描电镜实验观察产物失水后的表面结构。结果表明:产物的润湿性能好,凝聚效果好,能很好的起到抑尘作用。
Based on the continuous development and application of graft copolymerization theory,it was proposed to prepare a condensing dust suppressant by taking starch and bentonite as the matrix,acrylamide as monomer,potassium persulfate as initiator,and N-N′methylene diacrylamide as cross-linking agent.High specific surface area and adsorption performance of bentonite were used in the preparation.The optimal ratio of the selected product was tested by single factor experiment.The wettability of the product was tested by contact angle experiment,the action mechanism of the product was analyzed based on the actual coagulation effect of the product on the pulverized coal surface,the surface structure of the product after water loss was observed by scanning electron microscopy.The results showed that the product had a good wettability,good coagulation effect and could conduct a good dust inhibition.
Based on the continuous development and application of graft copolymerization theory,it was proposed to prepare a condensing dust suppressant by taking starch and bentonite as the matrix,acrylamide as monomer,potassium persulfate as initiator,and N-N′methylene diacrylamide as cross-linking agent.High specific surface area and adsorption performance of bentonite were used in the preparation.The optimal ratio of the selected product was tested by single factor experiment.The wettability of the product was tested by contact angle experiment,the action mechanism of the product was analyzed based on the actual coagulation effect of the product on the pulverized coal surface,the surface structure of the product after water loss was observed by scanning electron microscopy.The results showed that the product had a good wettability,good coagulation effect and could conduct a good dust inhibition.
引文
[1]周刚,聂文,程卫民,王昊.煤矿综放工作面高压雾化降尘对粉尘颗粒微观参数影响规律分析[J].煤炭学报,2014,39(10):2053-2059.
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[9]刘洋,王美燕,赵素素,刘洋洋,杨静.改性超支化聚酯抑尘剂的合成及其性能[J].山东科技大学学报(自然科学版),2018,37(3):26-34.
[10]Yunlong Ma,Gang zhou,Jianfei Ding,Shuailong Li,Gang Wang.Preparation and characterization of an agglomeration-cementing agent for dust suppression in open pit coal mining[J].Cellulose,2018,25:4011-4029.
[11]Gang Zhou,Tao Fan,Yunlong Ma.Preparation and chemical characterization of an environmentally-friendly coal dust cementing agent[J].Joumal of Chemical Technology and Biotechnology,2017,92(10):2699-2708.
[12]Tao Fan,Gang Zhou,Jiayuan Wang.Preparation and characterization of a wetting-agglomeration-based hybird coal dust suppressant[J].Process Safety and Environmental Protection,2018(113):282-291.
[13]周刚,程卫民,徐翠翠,聂文.不同变质程度煤尘润湿性差异的13C-NMR特征解析[J].煤炭学报,2015,40(12):2849-2855.
[14]周刚,薛娇,程卫民,聂文,王昊.基于X射线衍射实验的堆垛结构对煤尘润湿性的影响[J].工程科学学报,2015,37(12):1535-1541.
[15]韩高升,杨坤,李化雪,韩浩.煤矿复合抑尘剂的筛选及性能研究[J].山东科技大学学报(自然科学版),2015,34(5):14-19.
[2]张连勇,邢士军,陈龙高,张忠阳.综放工作面采煤机负压二次降尘技术的研究与应用[J].山东科技大学学报(自然科学版),2002(2):79-82.
[3]周刚,程卫民,陈连军,聂文.综放工作面粉尘浓度空间分布规律的数值模拟及其应用[J].煤炭学报,2010,35(12):2094-2099.
[4]周刚,程卫民,王刚,崔向飞.综放工作面粉尘场与雾滴场耦合关系的实验研究[J].煤炭学报,2010,35(10):1660-1664.
[5]周刚,张琦,白若男,徐茂,张明光.大采高综采面风流-呼尘耦合运移规律CFD数值模拟[J].中国矿业大学学报,2016,45(4):684-693.
[6]孙兆朋,王元元,李心秋.薄煤层矿井开采综合防尘技术研究[J].山东科技大学学报(自然科学版),2014,33(2):67-74.
[7]程卫民,刘伟,聂文,周刚,崔向飞,孙鑫.煤矿采掘工作面粉尘防治技术及其发展趋势[J].山东科技大学学报(自然科学版),2010,29(4):77-82.
[8]Gang Zhou,Yunlong Ma,Tao Fan,Gang Wang.Preparation and characteristics of a multifunctional dust suppressant with agglomeration and wettability performance used in coal mine[J].Chemical Engineering Research and Design,2018,132:729-742.
[9]刘洋,王美燕,赵素素,刘洋洋,杨静.改性超支化聚酯抑尘剂的合成及其性能[J].山东科技大学学报(自然科学版),2018,37(3):26-34.
[10]Yunlong Ma,Gang zhou,Jianfei Ding,Shuailong Li,Gang Wang.Preparation and characterization of an agglomeration-cementing agent for dust suppression in open pit coal mining[J].Cellulose,2018,25:4011-4029.
[11]Gang Zhou,Tao Fan,Yunlong Ma.Preparation and chemical characterization of an environmentally-friendly coal dust cementing agent[J].Joumal of Chemical Technology and Biotechnology,2017,92(10):2699-2708.
[12]Tao Fan,Gang Zhou,Jiayuan Wang.Preparation and characterization of a wetting-agglomeration-based hybird coal dust suppressant[J].Process Safety and Environmental Protection,2018(113):282-291.
[13]周刚,程卫民,徐翠翠,聂文.不同变质程度煤尘润湿性差异的13C-NMR特征解析[J].煤炭学报,2015,40(12):2849-2855.
[14]周刚,薛娇,程卫民,聂文,王昊.基于X射线衍射实验的堆垛结构对煤尘润湿性的影响[J].工程科学学报,2015,37(12):1535-1541.
[15]韩高升,杨坤,李化雪,韩浩.煤矿复合抑尘剂的筛选及性能研究[J].山东科技大学学报(自然科学版),2015,34(5):14-19.