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- The fly and bottom ashes are both composed of amorphous glass, minerals and unburnt coal particles. 结果表明，飞灰和底灰均由玻璃体、矿物和未燃炭组成。
- Results show that both concentration of HCN and NH3 are high under high volatile and fine pulverized coal particles. 试验结果表明：挥发分越高，煤粉粒径越小，HCN、NH3析出浓度越大。
- The physical properties of desulphurizing material s are usually different from coal particles in diameter and density. 由于喷入炉内的脱硫物质在粒径和密度上通常与煤颗粒不同，在流化区域上也存在差异。
- Separate volatile and char combustion phases were detected for the coal particles studied. 观测的煤粒子被发现有个别挥发物及焦的燃烧阶段。
- A rotating cone shaped reactor has been designed for studying pyrolytic process of coal particles mixed with a heat carrying medium. 设计出一种旋转锥式煤热解炉,对炉内煤颗粒热解过程进行实验研究,测定了煤颗粒平均粒径、热解温度、旋转锥旋转速率及煤热解失重的关系。
- The reason is that coal particles containing more vitrinite easily undergo a softening and deformation stage and swell significantly during pyrolysis. 镜质组体积分数越高，在热解过程中更容易软化、变形，发生剧烈膨胀。
- NO_x emission properties during combustion with air staging of differently sized Shenhua coal particles were investigated in an one-dimensional furnace with multipath air inlet. 在多路进风一维炉上,研究不同粒径的神华煤在分级燃烧中氮氧化物的排放规律。结果表明:不分级燃烧时中等粒径煤粉氮氧化物的排放较高;
- With the newly designed dual chamber pressurized thermogravimetric analyzer (PTGA) the ignition experiments of eight kinds of coal particles were performed under pressure. 利用自行研制的双炉膛加压热重分析仪进行了8种煤的加压着火试验。
- Experimental results show that substantial change of emission rate occurred when electromagnetic fields were applied to coal particles saturated with gas under the pressur... 根据煤屑瓦斯放散理论,分析了实验现象的机理,应用突出煤体电磁响应特征,提出了关于突出机理和突出防治的新见解。
- By performing Static Thermo-mechanical Analyses, we revealed the expansion characteristics of the coal particles in shielding gas atmosphere during the devolatilization. 通过静态热机械分析仪可以了解在有保护气的条件下,煤颗粒在挥发分析出的过程中颗粒的膨胀特性。
- The research shows that the thermal expansion and fragmentation of coal particles mainly occur in the stage of devolatilization during the coal combustion. 研究表明，煤颗粒在燃烧过程中其热膨胀破碎主要发生在挥发分析出阶段；
- The results indicated that the saturated adsorption of additive on the surface of coal particles increased after CWS was irradiated by ultrasound, which resulted in increase of zeta potential of CWS. 实验结果表明,煤浆经超声辐照后添加剂在煤粒表面的饱和吸附量增加,相应煤浆浆体的动电势也随之增加,而添加剂在煤粒表面饱和吸附量的增加与超声辐照引起的煤粒比表面积的增加密切相关。
- Regardless of the different sizes of coal particles, they all tended to break at the stage of devolatilization.It was even easier for coal particles to break if they contain high volatilize materials. 对于不同的煤颗粒来说,挥发分析出的阶段是颗粒最容易发生破碎的阶段,含高挥发分的煤样在实际的燃烧破碎中更容易发生膨胀破碎。
- The effects of the coal particles' mean size,pyrolysis temperature,cone's rotational speed and the proportion of the mixture on the coal's pyrolytic weight loss were tot determined. 实验结果表明,随着煤颗粒平均粒径的增加、热解温度的降低和旋转锥旋转速率的减小,热解失重呈现出明显的下降趋势;
- Aiming at a calciner with true size, three kinds of pulverized coal particles combustion in calciner of cement kiln were modeled by using PDF chemical model with method of numerical simulation. 针对一实际尺寸的分解炉建立数学模型,采用简化的PDF反应模型对3种不同煤质煤粉在分解炉内的燃烧过程进行了数值模拟。
- Single particle heat transfer characteristic has a great influence on ignition and combustion of coal particles in FBC boiler. 单个颗粒的传热过程对于燃煤流化床锅炉中煤的着火和随后的燃烧过程具有重要的影响。
- The surface terms are induced in chemical thermodynamics and kinetics, and effects of particle sizes on combustion and pyrolysis of coal particles are analysed and discussed. 在化学热力学和动力学理论中引入表面项,并由此来分析和讨论粒度对煤颗粒燃烧和热解反应的影响规律。
- The effects of fluctuating temperature of hot gas flow on the instantaneous devolatilization rate of pulverized coal particls are explored. 研究了热气流中气相温度脉动对煤粉颗粒瞬时热解挥发速率的影响。
- Increased reaction time, smaller coal particle size and increased reburn fuel fraction lead to higher NO reduction rate. 所以,在使煤粉成为超细粉的基础上,利用低挥发分烟煤作为再燃燃料是具有可行性的。
- The interior devolatilization of coal particle can increase the interior pressure which can produce expansion and fine crack leading to fragment. 内部挥发分的析出会使颗粒内压增大而产生膨胀，进而产生细小裂纹并破碎；
