2010年06期目次

  • Study on the regularity of distribution of coal ash

    REN Zhi-hu,FAN Xiao-nan (School of Material Science and Technology,Anhui University of Science and Technology,Huainan 232001,China)

    Introduce the method of coal ash calculation.According to the factors affecting the products ash,establish multiple linear regression equation,so the products ash can be decided quickly and accurately.This is also a feasible method to determine the total ash content in float and sink test,and has significant meaning in theory and practice.

    2010 06 v.16;No.70 [Abstract][OnlineView][Download 2712K]

  • Technical transformation of slurry system of Dashucun coal washery

    SUN Xiao-bin (Dashucun Coal Washery,Fengfeng Jizhong Energy Group Co.,Ltd.,Handan 056300,China)

    Analyze the problems existed in slurry system of Dashucun coal washery.Carry out technical reforms based on the characteristics of slurry.The detail measures are adding floating system,changing one step concentration and recovery process to two steps process.The results show that the system after reforming operate stably,ash concent decrease,medium consumption reduce and have remarked economic benefits.

    2010 06 v.16;No.70 [Abstract][OnlineView][Download 190K]

  • Application of KZG pressure filter in Xieqiao coal washery

    JIANG Tian-liang (Xieqiao Coal Mine,Huainan Mining (Group) Co.,Ltd.,Huainan 236221,China)

    Introduce KZG550/2000 pressure filter to transform the filter-press final recovery parachute.Analyze the using effects of this new pressure filter.It has the features of big flow,strong recovery ability,well-adapted,simply operation comparing with the KM pressure filter.It can improve the production output and guarantee the quality of product.

    2010 06 v.16;No.70 [Abstract][OnlineView][Download 493K]

  • Study on reactive characteristic of initial stage in direct coal liquefaction process

    LI Gang~1,LING Kai-cheng~2 (1.School of Material and Chemical Engineering,Sichuan University of Science & Engineering,Zigong 643000,China; 2.College of Chemistry and Chemical Engineering,Taiyuan University of Technology,Taiyuan 030024,China)

    Taking Yangcun coal as an example,the reactive characteristic of initial stage in direct coal liquefaction process was studied by using a 17mL micro-autoclave.Under the condition of 490℃ and double amount of tetralin solvent,the total conversion approached 84.47% when the reaction time was only 5 minutes,which showed that coal had an initial high reactivity characteristic in direct liquefaction process.Under pure N_2 atmosphere,the conversion increased from 66.38% to 83.27% as the initial pressure increased from 1.5 MPa to 7 MPa,which showed that besides the contribution to hydrogen-donation the pressure itself of H_2 pressure was also very important.Under 1.5 MPa of N_2 pressure,with the solvent/coal ratio was increased to 4:1,the conversion increased to 79%,but after that it did not increase any more,which showed that the method of adding excessive amount of hydrogen donor solvent to compensate the conversion loss brought by the decrease in system pressure was infeasible.

    2010 06 v.16;No.70 [Abstract][OnlineView][Download 407K]

  • Technical progress and analysis of semi-coke production with low metamorphic degree coal

    ZHAO Jun-xue~1,LI Hui-juan~1,LI Xiao-ming~1,LIU Jun-li~1,HUA Jian-she~2 (1.School of Metallurgical Engineering,Xi'an University of Architecture and Technology,Xi'an 710055,China; 2.Shaanxi Research Center of Metallurgical Engineering,Xi'an 710055,China)

    Technical progress of semi-coke production with low metamorphic degree coal were introduced.The technical characteristics of different developing stages were summerized.Based on the analysis of modern technology used in practical plants,the developing trend of new distillation technology is predicted.The prospects of some new technology,such as semi-coke production with oxygen-enriched air as a agent,coke dry quenching with cold distillation gas and micro-wave distillation are introduced and analized.

    2010 06 v.16;No.70 [Abstract][OnlineView][Download 256K]

  • Application of supercriticai fluid extraction technology in coal processing

    HE Xuan-ming~1,LI Tie-lu~1,WANG Kuan-qiang~2,QIN Jin~1,ZHANG Hua-jun~1 (1.Hubei Key Laboratory of Coal Conversion and New Materials, Wuhan University of Science and Technology,Wuhan 430081,China; 2.Jining Carbon Group Co.,Ltd.,Jining 272100,China)

    Supercritical fluid extraction technology is a new,green,environmental protection technology.The purposes of using this extraction technology on coal includes three respects,which are gasifying hydrogen,removing impurities and liquefying coal in supercritical conditions.Summarize the latest developments of research and applications of supercritical fluid extraction on coal from three respects and mainly expound the study process of this technology used on coal liquefaction in an attempt to provide ideas for a deep research on coal.

    2010 06 v.16;No.70 [Abstract][OnlineView][Download 356K]

  • Status of exploiting and utilization of oil shale in China

    CHEN Xiao-fei,GAO Wu-jun,ZHAO Jie,HUANG Jian-ning,WU Yi-xi, ZHANG Jun-qing,DOU Jun-lu,TIAN Peng-jun,ZHANG Zhong-min (Shaanxi Metallurgical Design & Research Institute Co.,Ltd.,Xi'an 710032,China)

    The prospect of oil shale and the history of its development and utilization in China are briefly introduced. The retorting technique and situation are also summarized.The developing trend of the oil shale orientation is forecasted.

    2010 06 v.16;No.70 [Abstract][OnlineView][Download 202K]

  • Control technology of flue gas SO_2 in coal-fired industrial boilers

    XIAO Cui-wei (State Key Laboratory of Coal Mining and Environment Protection,China Coal Research Instatute,Beijing 100013,China)

    The generation and hazard of coal burning sulfur pollutants,coal burning,furnace desulfurization and flue gas desulfurization technology were introduced.The after combustion flue gas desulfurization technology research situation was emphasized and some new technology developments and application situation were introduced.

    2010 06 v.16;No.70 [Abstract][OnlineView][Download 340K]

  • Analysis influencing factors of yield and properties of low-temperature tar

    FAN Yi-long,WANG Ning-bo,XU Hong-dong,MEN Chang-gui (Northwest Chemical Engineering Research Institute,Xi'an 710600,China)

    Analyze the characteristics of low-temperature tar,summarize the effects of coal properties,reactor types,technology conditions on yield and properties of low-temperature tar.Finally,puts forward measures for enhancing the yield and properties of low-temperature tar,such as coal selection,new type reactor exploitation,pyrolysis technology conditions selection.

    2010 06 v.16;No.70 [Abstract][OnlineView][Download 479K]

  • Influence of off-design gas turbine on performance of gasification island in IGCC system

    ZHOU Guo-feng~1,ZHANG Zhong-xiao~1,LI Zhen-zhong~2,QI Li-li~1,CHEN Lei~2,CHEN Xiao-li~2 (1.School of Energy and Power Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China; 2.National Power Plant Combustion Research Center,Shenyang 110034,China)

    A system model of 200MW IGCC is established with the Thermoflex software.Briefly analyze the design parameters of the gasification island.Off-design characteristics of the gasification island are mainly analyzed when gas turbine load varies from 100% to 40%.The results show that with the reduction of gas turbine load,the gasifier inlet parameters fall at constant O/C ratio and the power consumption such as air separation system reduces;at the same time the syngas temperatures out of the radiation syngas cooler,convective syngas cooler and the high-pressure economizer fall;besides heat absorption power,steam pressure out of waste heat boiler and the entrance temperature of the absorption tower in the desulfurization system decrease;syngas pressure out of syngas saturator decreases which lead to decrease in volume fraction of H_2O,and the syngas heating value increases which is no help for keeping down the NO_x.

    2010 06 v.16;No.70 [Abstract][OnlineView][Download 530K]

  • Research on magnetism enhancement of pyrite in coal under overheating steam atmosphere

    XU Shi-hui,LI Yan-feng,CHEN Wen-kan,ZI Tao (Institute of Chemical Technology,China University of Mining and Technology,Xuzhou 221008,China)

    Do heat treatment experiments taking the Xishan Coal and Electricity Group coal as samples,using self-pyrolysis equipment at high temperature steam atmosphere,pyrolysis temperature 400～700℃ thermal decompose pretreatment coal samples,research the magnetic desulfurization of pretreatment coal sample with homemade PM-C30 cylindrical magnetic filter.The results show that increasing the pyrolysis temperature on the magnetic desulfurization can improve desulfurization efficiency especially at 500℃,the desulfurization rate is 56.86%,and coal desulfurization rate is improved 40.49% compared with raw coal.For Xishan coal,the thermal solution -magnetic select desulfurization technology can effectively remove inorganic sulfur,but the organic sulfur removal ineffective.

    2010 06 v.16;No.70 [Abstract][OnlineView][Download 856K]

  • Research on the effect of the fusion characteristics of Xiaolongtan lignite ashes

    LI Feng-hai~(1,2),HUANG Jie-jie~1,FANG Yi-tian~1,WANG Yang~1 (1.Institute of Coal Chemistry,Chinese Academy of Sciences,Taiyuan 030001,China; 2.Graduate University of Chinese Academy of Sciences,Beijing 100039,China)

    In order to optimize the operating conditions of lignite fluid-bed gasification,the influence of particle size,atmosphere condition and residual carbon content on the fusion characteristics of Xiaolongtan lignite ashes are investigated.The issues that lead to the variation of ash fusion temperature (AFT) are analyzed from the aspects of ash composition and mineral transformation using chemical analyses and XRD measurement.Results show that the change of AFT caused by particle sizes is due to the variation of total alkali content in ashes;the modification of AFT in different atmospheres results from the generation of low melting point fayalite and hercynite under weak reducing atmosphere,which come from the reactions between the wustite and anorthite;the difference of AFT caused by residual carbon content is the result of the formation of Fe_3C,reducing atmosphere and the "skeleton" of residual carbon within the ashes cone.

    2010 06 v.16;No.70 [Abstract][OnlineView][Download 874K]

  • Analysis of coal quality characteristics of Carboniferous and Permian coal seam and development of CCT in Henan Province

    LI Yuan-jian,FAN Yun-xia,LIU Su-qing,YANG Min (Henan Province Research Institute of Coal Geological Prospecting,Zhengzhou 450052,China)

    The features of microscopic coal petrography,chemical properties,technological properties of Taiyuan Fm,Shanxi Fm,Xiashihezi Fm coal are different because of depositional environmental difference.Strengthening coal quality characteristics evaluation and developing clean coal technology vigorously all very important to coal utilization and exploration,also hall the profound significance in improving energy using efficiency,reducing the pollutant discharge,impelling structure optimization and economical reforming and pattern innovation.

    2010 06 v.16;No.70 [Abstract][OnlineView][Download 650K]

  • Research on steam explosion device for lignite upgrading

    ZHOU Jian-ming~1,GONG Zhi-jian~2,LIU Wen-yu~1,FANG Zhao-ying~2 (1.Beijing Research Institute of Coal Chemistry,China Coal Research Institute,Beijing 100013,China; 2.College of Chemical and Environmenal Engineering,Shandong University of Science and Technology,Qingdao 266510,China)

    A steam explosion grinding and upgrading study was carried on Neimeng lignite with the steam explosion method.The investigation was conducted on the process conditions,and the steam explosion effects,meanwhile, the influence of process conditions of the steam explosion on lignite upgrading were also studied.The results show that the steam explosion has great effects on lignite grinding and lignite upgrading.When the residence time is 1 h, with the increasing of the steam explosion temperature,the lignite moisture decrease by 63.6%,the volatile decresse by 11.3% and the oxygen content decrease by 48%,while the carbon content increase by 12.9%.The lignite quality is improved after upgrading.

    2010 06 v.16;No.70 [Abstract][OnlineView][Download 575K]

  • Study on washability of prite recovery from high-sulfur coal refuse

    LI Xiao-hua (Changping Coal Co.,Ltd.,Jincheng Coal Group,Jincheng 046000,China)

    High-sulfur coal refuse of Jincheng Wangtai Mining Area was used as research subject,and the experiments were carried out to recover pyrite with the methods of table and aqueous medium swirler.The results show that using above two methods could obtain the concentrate with more than 32% sulfur grade.The sulphur recovery exceed 80%.

    2010 06 v.16;No.70 [Abstract][OnlineView][Download 1219K]

  • Study on the determination method of sulfur conversion rate of coking coal

    YU Bo-lin,DUAN Chun-ming (HuBei CPSS New Chemical Energy Resources Co.,Ltd.,Huangshi 435001,China)

    Based on the principle that sulfur existed in different kinds of coals transforming into total sultur in coking coal,with sulfur content of single coal,coal blend ways,measured value of coke dry basis sulfur get the sulfur conversion rate of single coal.Taking advantage of the rate can appreciate the sulfur content of coke.

    2010 06 v.16;No.70 [Abstract][OnlineView][Download 1769K]

  • Impact on ecological environmental impact assessment of developing Shendong Mining Area

    CHENG Shui-Ying~1,ZHOU Yu-hong~2 (1.Xi'an Branch,China Coal Research Institute,Xi'an 710054,China; 2.College of Environmental Sciences and Chemistry Engineering,Xi'an Polytechnic University,Xi'an 710048,China)

    Based on Landsat TM imagines in 1986 and 2008,using remote sensing techniques and GIS,evolution of ecological environment of Shendong Mining Area were studied in land use/land cover changes ( LUCC) and landscape pattern index.The results show that the integrative index of land use/land cover changes decrease 1.01%, the type of LUCC is still agricultural ecosystem;the landscape of mining area change a certain extent,but the exploitation haven't change the dominated landscape,so the influence on changing of landscape by exploitation may be suggested to be little.

    2010 06 v.16;No.70 [Abstract][OnlineView][Download 987K]

  • Study on the dust covering agent dedicated to coal railway transport

    CAI Jue-xian,DONG Bo,LI Ying-quan (Environmental and Municipal Engineering,Lanzhou Jiaotong University,Lanzhou 730070,China)

    In order to solve the problem of dust pollution in coal railway transport and reduce the coal waste,a new special dust covering agent dedicated to coal railway transport was developed.By comparing the coal dust quantity along the line and the coal loss rate before and after spraying the dust covering agent in Daqin Railway,the results show that the dust covering agent have a good effect and observably reduce the loss in coal railway transport.

    2010 06 v.16;No.70 [Abstract][OnlineView][Download 1619K]

  • Analysis of causes and measures of gas accumulation in upper corner of coal mining face

    JIANG Cheng-yu~1,LIU Yong~1,LI Chun-hui~2 (1.College of Mining,Guizhou University,Guiyang 550003,China; 2.Faculty of Land Resource Engineering,Kunming University of Science and Technology,Kunming 650093,China)

    Through analyzing gas resource,influence factors of gas emission and gas accumulation in upper corner of coal mining face,the treatment measures of gas accumulation and gas ultra limits in upper corner of coal mining face are proposed.It is important to guarantee safety production and improve economic efficiency in coal mining enterprises.

    2010 06 v.16;No.70 [Abstract][OnlineView][Download 189K]

  • Uniform corrosion tests of special dust covering agent dedicated to coal railway transport

    DONG Bo,CAI Jue-xian,LI Ying-quan (Environmental and Municipal Engineering,Lanzhou Jiaotong University,Lanzhou 730070,China)

    In order to solve the problems of the coal dust pollution and coal loss,a new special dust covering agent dedicated to coal railway transport is developed.Uniform corrosion tests of materials of traffic tools in the dust cover agent solution is performed to prevent harmful effect of dust covering agent for traffic tools such as the train and the track.The uniform corrosion tests of ordinary carbon steel,TCS stainless steel,alufer aluminium alloy,alkyd paint and train rubber hose were carried,and the results show that the dust covering agent has not corrosivity and can be applied to most traffic tools.

    2010 06 v.16;No.70 [Abstract][OnlineView][Download 1441K]

  • Analysis of the relationship between waveform characteristics and anisotropic properties in layered rocks

    WANG Wen-bing~1,JI Rong-sheng~1,QIAO Yan-hong~2,GOU Ming-fu~3 (1.School of Engineering & Technology,China University of Geosciences (Beijing),Beijing 100083,China; 2.Faculty of Construction Engineering;Langfang Teachers College,Langfang 065000,China; 3.CCDE Geophysical Prospecting Company,Chengdu 610213,China)

    The research on acoustic characteristics of rocks is thought to be a fairly reasonable approach which will reflect the insight details of texture and mechanical properties of rocks.According to the study of acoustic characteristics, a lot of information can be learned which can be used in rocks blasting.Some acoustic experiments were conducted on layered rocks,it is closely related between acoustic velocity and rock blasting fractured results,and the waveform of sonic wave is tightly correlated with the acoustic velocity.Obviously,in some sense,the acoustic waveform characteristics and rock blasting fractured results could be correlated in some way.So the differences of the waveform in rock's different directions and the differences of rock blasting fractured results in different directions are to some extent correlated.

    2010 06 v.16;No.70 [Abstract][OnlineView][Download 374K]

  • Study and application of technology of special geologic tectonic zone of full-mechanized face

    LIU Xiao-wei (Xieqiao Coal Mine,Huainan Mining (Group) Co.,Ltd.,Huainan 236221,China)

    13 - 1 coal seam is the typical three-soft coal seam which is the main mining seam in Xieqiao coal mine. It is harder to operate while passing complex geological structures.Control apical plate and coal wall with the method of injecting malisan which is a new polymer polymerized material grouting strengthening technology combining polyurethane wood anchor strengthening technology.This method is a reference for fully mechanized and large cutting height workface mining under the same conditions.

    2010 06 v.16;No.70 [Abstract][OnlineView][Download 907K]

  • Metallogenic characteristics and exploitation and separation technology of oil sand

    ZHOU Peng~1,WANG Wen-bing~1,CUI Yi~2,HE Jiang~1,GOU Ming-fu~3,LIU yi~4 (1.School of Engineering & Technology,China University of Geosciences (Beijing),Beijing 100083,China; 2.China Huaneng Group,Coal Department,Beijing 100031,China; 3.China National Petroleum Corporation Chuanqing Drilling Engineering CO.,Ltd.,Geophysical Prospecting Company,Chengdu 610213,China; 4.The forth Oil Production Plant of PetroChina Dagang Oilfield,Dagang 300280,China)

    Give a systematic introduction about the formation of oil sand mine and the exploitation and separation ways of oil sand resource.Meanwhile,introduce the newest methods in extracting the asphaltic oil abroad,provide reference for the development and utilization of oil sand in our country.

    2010 06 v.16;No.70 [Abstract][OnlineView][Download 435K]

  • Application of redundant system of stratus ftserver in mine integrated automation system

    CHEN Su-ling (Beijing YZHCOAL Engineering Design CO.,Ltd.,Beijing 100088,China)

    Introduce the importance and components of mine integrated automation system,analyze two different kinds of operating methods of foreground server of this system.These are dual-computer hot-standby system and edundant system of stratus ftserver.Compare the function,merit and demerit,routine attention workload of the two systems.Point out the characteristics of edundant system of stratus ftserver.

    2010 06 v.16;No.70 [Abstract][OnlineView][Download 381K]

  • Research on reducing cross-pipe primary cooler resistance

    HUANG Chang-sheng,WANG Mu-hai,XU Qing-peng,FU Qiang,SONG Yin-tao (Shan dong Yan Kuang Inter national Coking CO.,Ltd.,Yanzhou 272100,China)

    Introduce the issues of cross-pipe primary cooler caused by improper operation.The equipment is transformed after finding the reasons.Resolve the problems which are big resistance,lower load production,heat gas waste.

    2010 06 v.16;No.70 [Abstract][OnlineView][Download 434K]

  • Sequence-stratigraphic framework on Mesozoic and Paleogene of the East China Sea shelf basin

    DUAN Jiu-chun~(1,2),ZHAO Ying-jie~1,MI Hui-fen~2 (1.School of Energy Resources,China University of Geosciences (Beijing),Beijing 100083,China; 2.China National offshore Oil Corp Energy Technology & Services Limited,Beijing 100027,China)

    According to seismic wave Termination type and borehole data,4 first-class sequence boundaries and 4 second-class sequence boundaries are identifed in Mesozoic and Paleogene of the East China Sea shelf basin.Moreover, these strata into 3 tectonic sequences and 7 super sequences are divided.Based on analyzing the evolution of sequence stratigraphy,it is pointed out that the evolution of sedimentary in the East China Sea shelf basin include 6 stages;Depress stage,Fore-arc stage,Volcanic stage,Rift stage,Post-rift stage and Inversion stage.

    2010 06 v.16;No.70 [Abstract][OnlineView][Download 481K]



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