煤样
- coal sample
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且随升温速率的提高,煤样的热重(TG)曲线向右偏移。
With the temperature rising rate increased , TG curve of the coal sample was displaced to right .
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因此,本论文结合煤矿实际条件最终确定了CO为主,烯烷比为辅作为西山官地煤样的指标气体。
Taking into account the actual conditions , the indicator gases were determined by choosing CO as the main indicator gas and defin-alkyl ratio as an supplemented one for coal sample from Guandi mine .
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四合木分布区土壤细菌遗传多样性在有煤样地(A)和无煤样地(B)间具有差异性。
There is a magnificant difference of the genetic diversity of Bacteria in the distributive area of Tetraena Mongolica , between the area with colliery and the one without colliery .
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确定了煤样在不同温度下生成标志气体的规律及CO气体浓度随温度变化的规律,对预测预报煤的自然发火具有重要的理论和实际意义。
The rules for the significant gas produced by coal samples and the rules for CO consistency changing by temperature were obtained at different temperature .
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结果:①淮北矿务局九个矿区煤样标本的游离SiO2含量平均为6.33%;
Results : ① The average free silica concentration of Huai Bei Coal Mine is 6.33 % ;
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同时,对煤样进行等温吸附CH4试验。
The test of CH 4 isothermal adsorption of coal samples is also calculated .
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采用XPS技术分析了我国以烟煤为主的七种煤样以及对应的快速加氢热解半焦中有机硫的化学形态。
Using XPS analyses the organic sulfur of seven different Chinese coals and their semi-cokes from flash hydropyrolysis were studied .
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通过计算得出不同粒度煤样的耗氧速度和CO,CO2,CH4等气体的产生速率,以及这些特性参数随煤温和粒度的变化规律。
Through calculation , the law of concentration changes for CO , CO_2 etc and the relation of oxygen consumption velocity to coal temperature was achieved .
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实验收集了国内16种不同变质程度的煤样进行热解,对热解过程中PAHs生成排放从内因和外因两个方面进行了研究。
PAHs emitted from 16 kinds of different rank Chinese coals during pyrolysis were studied from the internal factors and external factors .
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提出了堆积煤样的体积耗氧速度常数新指标,其值可通过试验直接测定;给出了耗氧速度(量)与CO产生速度(量)的比例变化关系。
In addition , we have also proposed a new index & the volume of the oxygen consumption of the coal samples , whose value can be directly tested by the experiment .
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通过程序升温实验研究了煤炭的自燃特性,测定了不同粒度煤样在不同温度下产生CO,CO2等气体的浓度。
The characteristics of coal spontaneous combustion were investigated through programmed temperature experiment and the concentration of CO , CO2 etc for coal with various sizes was measured at different temperatures .
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利用X-射线衍射物相分析法(XRD)对煤样、灰样及高温灰样进行矿物质的定性分析,具体研究不同地质年代的煤和煤灰的矿物质构成差异性。
Make qualitative analysis on these selected coals , coal-ashes and high-temperature coal-ashes with X-ray diffraction ( XRD ) . Study the diversities of different geological-time coals and coal-ash particularly .
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其中,温度和煤样对产物CH4的产量有高度显著的影响,压力对其无显著性影响。
Among them , temperature and coal components have significant impacts on the production of CH4 , while pressure has no significant impacts .
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针对富含瓦斯煤样渗流的非Darcy流特性,计算了渗流失稳时的临界压力梯度。
Based on the permeability characteristics of non-Darcy flow of coal samples from gas-rich mines , critical pressure gradient at seepage instability is computed .
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同时应用约束非线性规划求最优解的数学模型,模拟出煤层煤样柱状以及其煤层表面,并在Matlab中实现仿真。
Also , the study applies mathematical model of nonlinear programming with constraints to the optimal solution to simulate the pillar and the curved surface of coal seam , and the simulation in Matlab can be achieved .
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运用RFPA软件对煤样受载过程声发射特性进行了模拟研究。
AE characteristic of coal in process of deformation is simulated by the soft of RFPA .
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采用TGFTIR联机实验方法,对不同煤样进行了热重分析,同时对煤样的析出产物进行红外光谱实时跟踪检测;
The Thermogravimetric ( TG ) analysis on several kinds of coal were carried out by TG & FTIR analysis method . The volatiles were evaluated by FTIR on real time .
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光照是引发自由基反应的常见方法,本文测定了煤样在紫外光照射下自由基浓度和气体氧化产物(CO和CO2)的变化情况。
Light is an ordinary method of initiating free radical reactions . The changes of the free radicals concentration and gases oxidation production ( CO & CO2 ) with the coal samples were measured by ultraviolet lighting .
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用RFPA软件对煤样钻孔冲击进行了数值模拟研究,验证了钻孔冲击试验得出的临界压力。
The software RFPA is used to simulate the borehole burst , and to validate the critical pressure .
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分析煤样氧化自燃生成产物的红外3D光谱图谱,应用量子化学密度泛函(DFT)理论计算方法对构建的煤分子化学基本结构单元进行了优化,得到了分子构型参数和振动频率。
Based on that , the vibration frequency and the parameters of molecule structure were gained while optimizing the basal chemical structure cell of coal molecule by quantum chemical DFT method according analyzing the 3D infrared spectrum figures .
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影响煤样对菌体吸附量的因素依次为pH值>煤样粒度>接触时间>菌液浓度,其中pH值决定了细胞与煤表面带电性的差异。
Cell adsorbing capacity on the coal surface was measured and the results showed that the order of influence factors was pH coal particle size contact time concentration of bacilli . The pH determined the charging difference between cell and surface of coal .
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结果表明,LZ煤样中的汞主要赋存于黄铁矿中,硫主要来自硫铁矿硫。
The studies show that the mercury in LZ coal sample may be associated with pyrite , and the form of sulfur was pyritic sulfur .
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用~(241)Am-Be中子源照射煤样,测量中子感生的瞬发γ射线能谱,由特征γ射线的强度来确定C、H含量。
Coal samples are radiated by ~ ( 241 ) Am-Be neutron source . The induced prompt gamma rays by neutron are measured . We determined the contents of carbon and hydrogen in coal samples by characteristic gamma rays .
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分别用TG、DSC曲线对不同煤样进行了热动力学分析,计算了不同煤样的反应机理函数、增重阶段的着火活化能、相关度及指前因子。
The article uses the TG and DSC curves of different kinds of coal for thermo-kinetic analysis and calculates different kinds of reaction mechanism of coal and the ignition activation energy of weight gain phase and correlation degree and pre-exponential factor .
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将合成出的NSF分别与不同煤化程度的煤样混合进行制浆实验,考察缩合度与煤分子结构的匹配性,以此来确定最佳缩合度值。
Mixing NSF with coals of different ranks , the matching performance between condensation degree of NSF and coal molecular structure was studied , and the optimal condensation degree was obtained .
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在所考察的正交试验参数范围内,压力、温度、煤样三个因素对气化产物CH4产量的影响的主次顺序为:温度、煤样、压力。
In the whole range of the parameters of the orthogonal experiments , pressure , temperature and coal components are listed in descending order of impacts on CH4 production as : temperature , coal components and pressure .
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与全煤样相比较,该煤样抽提物的藿烷衍生物13C值则减少8~34‰,标志在成煤过程中甲烷的细菌循环起着作用。
Hopane derivatives in this coal extract are depleted in 13C compared to the bulk coal by 8 ~ 34 ‰, suggesting that bacterial cycling of methane played a role during the formation of this coal .
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3煤样在某一温压条件下(100℃、100MPa),应力应变强度都是最低的,为煤岩组分影响的结果。
Sample is the lowest under certain temperature and pressure ( 100 ℃ / 100 MPa ), which might be related to the effect of maceral .
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在液氮温度下,通过测试煤样在气体饱和蒸气压力范围内对N2的吸附过程及吸附量,用BET和BJH理论模型计算出煤的孔体积和孔表面积。
At the temperature of liquid nitrogen the N 2 adsorption process and adsorptive volume of coal samples are measured under the gas saturated vapour pressure . Using BET and BJH theoretical models the pore volume and area of coal are calculated .
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本文采用离散分形布朗增量随机场(DFBIR)模型对煤样微观结构的显微图像做了分形定量研究。
This paper researches the fractal of the scanning electron micrograph of coal samples by Discrete Fractal Brownian Increment Random Field ( DFBIR ) .