2007年03期目次

  • The Effect of Coal Mine Safety and the Countermeasure of Analysis to the Discerption of Coal Seam Gas and Coal Mine Right

    CAI Kai-dong (Coal Industry Company of Jincheng,Jincheng 0480(0),China)

    The text analyses that the discerption of coal seam gas right and coal mine right won't be profitable to mine coal and open up coal seam gas.At the same time,if the coal company opens up safe mines and develops safely,the phenomenon above will bring some bad effects.So a main developing body between coal and coal seam gas in the area of coal mine and coal layout won't only realize that opening up coal and gas at the same time,but it's also an available approach to develop safely of coal mine industry and open up coal gas effectively.

    2007 03 No.49 [Abstract][OnlineView][Download 179K]

  • The Foundation of an Evaluation Index System about Cleaning Production in Coal Cleaning Plant

    SUN Li-mei Shanghai college of electric power,Shanghai 200090,China CHEN Zhong The second Industrial University of Shanghai,Shanghai 201209,China BAI Yan-ying Chinese Research Academy of Environmental Sciences,Beijing 100043,China

    The text explains the evaluation index system and benchmark about cleaning production based on collec- ting abundant technology information and the evaluation index system about cleaning production in home and sea at present,which develops under the thought of cleaning production and combines with practical production and tech- nology alteration.And the text also analyses the evaluation of cleaning production about practical technology altera- tion in some coal cleaning plant,according to the evaluation index and benchmark.

    2007 03 No.49 [Abstract][OnlineView][Download 784K]

  • The Study on Removal of Trace Elements in Coal by Coal Preparation

    WANG Lin (Beijing Research Institute of Coal Chemistry,China Coal Research Institute,Beijing 100013,China)

    The removal of trace elements in coal during coal preparation was researched by float- sink testa.The results show that the removal of trace elements of coal is dominated by their organic affinity.For most coals,the el- ements of As,Cr,Hg,Mn,Ga,Ta,Ti,W and Cs have higher theoretical removal percentage.Generally speak- ing,the elements of B,Mo and Y etc.are difficult to be removed during coal washing.The theoretical removal percentage of Be,Se and Pb etc.varies largely from one coal to another,in accordance with their complex modes of occurrences in coals.

    2007 03 No.49 [Abstract][OnlineView][Download 591K]

  • Application of Modified Starch Polymeric Flocculants in Coal Slurry in Preparation Plant

    JIANG Lin-hua ZOU Li-zhuang LIU Quan LI wei GUO Xiang-kun WANG Shi-bing FENG Li-pin School of Chemistry and Environmental Engineering,China University of Mining and Technology,Beijing 100083,China XU Chu-yang Department of Material Science & Engineering,Anhui University of Science and Technology,Huainan 232001,China

    To effective resolving the characteristics of large quantity of fine coal in coal slurry and the difficulty in processing in Pansan plant,from flocculating mechanism,using Ce4 + as initiator,St-AM was prepared by graft copolymerization and acrylamide onto starch,the FSM were experimented in flocculating test and be found to be a- ble to cause fine coal coagulate and produce settlement,obtain the purpose of separation of solid from liquid.. When the ratio of the FSM flocculants to coal slurry without water is 50g/t and coagulating agents is 1.5kg/t,the effect of settlement is the best,productive power is 75t/h,moisture of filter cake is about 25%,concentration of clarified liquid is about 60g/L,thus realizing coal cleaning with clean water,improving the pressure filtration effect and increasing the efficiency of coal processing,contrasting with PAM,the St-AM have cheapness,nontoxic and flocculating well,providing a effective way for fine coal slurry processing.

    2007 03 No.49 [Abstract][OnlineView][Download 670K]

  • The Retrospection of the Mode of"1+1"that has Put into Production in Coking Coal Plant for Three Years

    WU Xi-fang QIU Yong HOU Jing-bao Wenfeng Science and Technology limited company in Jiaohua,Fenyang 032200,China WANG Peng YAN Rui-min WANG Shu-kuai Guohua Science and Technology limited company,Tangshan 063020.China

    The text explains that the running status of the mode of One Plus One,which has put into production in Wenfeng coal cleaning plant devised by coking coal plant for more than three years.Because of these,the plant can use clean water to wash coal and lowering medium consumption so that it reaches the international level,less than 0.6kg/t.Moreover,all kinds of economic indexes of producing are better than all devised indexes as a whole.

    2007 03 No.49 [Abstract][OnlineView][Download 488K]

  • Application of Polymer-layered Silicate Nanocomposite to Grouting Materials

    ZHANG Xin-xia YANG Zhi-yi (College of Mechanical and Electrical Engineering,China University of Minging and Technology,Xuzhou 221008,China)

    Polymer-layered silicate nanocomposites were prepared using the appropriate organic polymermaterials that are selected from the existing chemical grouting materials.A series of process conditions such as the best re- cruitment of montmorillonite,the best reaction temperature and time are confirmed.They are characterized by XRD and SEM.

    2007 03 No.49 [Abstract][OnlineView][Download 197K]

  • Rheology and Correction for Wall Slip on High Concentrated Coal Water Slurries

    WANG Qiu-fen CHEN Liang-yong REN Yuan DUAN Yu-feng (Key Laboratory of Clean Coal Power Generation and Combustion Technology of the Ministry of Education,Southeast University,Nanjing 210096,China)

    Coal water mixtures are known to exhibit slip in their flows,but there have been not consistent conclu- sions acquired when applying the classic Mooney method and Jastrzebski method into high concentrated coal water slurries (CWS).On the basis of hypothesis about wall slip,the slip phenomenon of high concentrated CWS flows in pipes is investigated through tests in deferent pipelines.The effects of slip added flow on the overall flow rate of CWS transportation are focused.The real rheology and its distinct formula with a yield stress for high concentrated coal water slurry were proposed based on selection of a maximal slip index.

    2007 03 No.49 [Abstract][OnlineView][Download 318K]

  • Experiment Reseach of Adsorption and NMR on the Noulding Coal

    HU Ai-jun PAN Yi-shan TANG Ju-peng LI Cheng-quan DONG Zi-xian (Department of Mechanics & Engineering Science,Liaoning Technical University,Fuxin 123000,China)

    The amount of CH4 adsorbed by nature coal is very small,and the pore is ununiform,but the moulding coal not only increase the volume of CH4 adsorbed but also make the proe uniform and control the porosity(within the limit).Do the experiment about adsorption and desorption with moulding coal and change the condition,find how it influence the adsorption.Then do the reseach about CPMG and T_2 on the moulding coal by NMR method.

    2007 03 No.49 [Abstract][OnlineView][Download 326K]

  • Effect of De-watering and Upgrading of Low Rank Coal on Slurry-Formation Ability

    DUAN Qing-bing WANG Guo-fang HE Guo-feng ZHAN Long YU Yong-nian Nation CWM Engineering & Technology Research Center,CCRI,Beijing 100013,China ZHANG Gui State Administration of Work Safety,Beijing 100713,China

    The necessity of expanded coal rank for CWM production and saving coking coal resources were dis- cussed in this paper.Shenfu coal (a kind low rank coal) was used to produce high concentration CWM through de -watering and upgrading technology treatment.The research achievement provided an important technique to sup- port for low rank coal CWM production.

    2007 03 No.49 [Abstract][OnlineView][Download 295K]

  • Study on Burning and Pyrolysis Features of the Composite Refuse Derived Fuel

    SONG Zhi-wei LV Yi-bo College of Resource and Environmental Engineering Heilongjiang Institute of Science and Technology,Harbin 150027,China ZHANG Wan-feng Harbin environmental monitoring centre,Harbin 150067,China

    The combustion property and the release behavior of chlorine in composite refuse derived fuel (CRDF) were investigated respectively by thermogravimetric analysis and gas chromatography -mass spectrometry.The re- suits show that no distinct difference existed in the case of both combustion and pyrolysis,the release rate of inor- ganic chlorine in combustion reached 90% at temperature between 500～600℃,while it was about 76% in the case of pyrolysis,more kinds and high concentration of organic chlorine compounds released in pyrolysis when tem- perature was beyond 800℃.There were three prominent phases in the thermal process of CRDF according to ther- mogravimetric analysis:the first phase occurred at temperature between 200～300℃,the weight loss in this phase was about 38.5%;the second phase occurred at temperature between 400～500℃,the weight loss was 20.35%; while the last phase occurred slowly at the temperature between 600～800℃with 22.25% weight loss.

    2007 03 No.49 [Abstract][OnlineView][Download 600K]

  • Study on Accessorial Cementitious Properties of Calcining Coal Gangue with Calcite

    ZHOU Shuang-xi (School of Civil Engineering and Architecture,East China Jiaotong University,Nanchang 330013,China)

    The accessorial cementitious propertie of coal gangue is enhanced when coal gangue was calcining with calcite at a certain temperature.The increased mineral of limestone,calcium sulphate and CaO·Al_2O_3 content can be observed in the XRD patterns of calcining coal gangue with calcite compared with single calcining coal gangue. The structure of calcining coal gangue with calcite is loose,and some fusible mineral is filled in the interspace,in which some volatile gas leave behind.

    2007 03 No.49 [Abstract][OnlineView][Download 399K]

  • The Computation and Experiment of Burnout-time on Superfine Pulverized Coal

    DAI Ji-bang JIN Jing LI Li JIANG Jiang (The University of Shanghai for Science and Technology Thermal and Dynamic college,Shanghai 200093,China)

    This paper computes the burnout - time of pulverized coal and experiment in one-dimenion thermal fur- nace,concludes that the relation between residing-time in burnout zone and size of pulverized coal in the circum- stance of the higher burnout efficiency.

    2007 03 No.49 [Abstract][OnlineView][Download 191K]

  • Analysis of Coal Ash Fusion Characteristics of High Fusibility Coal Blending with Low's with Ternary Phase Diagram

    WU Xiao-jiang~(1,2) ZHANG Zhong-xiao~1 PIAO Gui-lin~2 Shigekatsu MORI~3 Yoshinori ITATYA~2 CHEN Long~1 1.Department of Power Energy (University of Shanghai for Science and Technology),Shanghai 200093,China 2.Department of Chemical Engineering( Nagoya University),Nagoya 464-8603,Japan 3.Center for Cooperative Research in Advanced Science and Technology,Nagoya 464-8603,Japan

    The coal ash fusion characteristics of high fusibility coal blending with two low fusibility coals respectively were studied and the result was analyzed by ternary phase diagram.The results indicate that the ash fusion point of high fusibility coal can be reduced effectively by coal blending.The trends of ash fusion point for two blended coals were not linear with the proportions of adding coal,but mirrored by changes in the liquidus temperature from terna- ry systems.The ternary systems are not only suitable for single coal but also for coal blends.The melting points of coal ashes that their components were closed to boundaries between regions or triple points were lower and changed more evident than those fare away from the boundaries between regions or triple points.Ternary systems can be well analyzed the melting behaviors of blending coal.The results of experiment were agreed with the theory analysis by using ternary phase diagrams.

    2007 03 No.49 [Abstract][OnlineView][Download 289K]

  • Study on Hydrocarbon-generating Characteristics of Carboniferous Permian Coal in Ordos Basin

    GU Guang-ming (Xi'an Branch,China coal research institute,Xi'an 710054,China)

    Through deepened study of Hydrocarbon generating characteristics of Carboniferous Permian coal in Ordos Basin and based on the results of coal petrological,coal quality and pyrolysis tests,the paper analysed the main factors influencing hydrocarbon- generating characteristics of coal,and discussed the relationship of different tech- nical parameters.It is believed that the hydrocarbon-generating characteristics of coal are closely related to organic type,vitrinite content and rank of coal.Humic organic materials constitute hydrocarbon-grnerating source of coal mainly generate gasous hydrocarbon and are important material source of natural gas.

    2007 03 No.49 [Abstract][OnlineView][Download 468K]

  • Study on the Factors Affecting Fixed Sulfur of Burnable Coal

    MA Xiao-yan ZHANG Xing-qiao (Resource and Environment Engineering Dept.,Heilongjiang Institute of Science and Technology,Haerbin 150027,China)

    To deduce and predict the possibility of calcium sulfate,production of fixed sulfur,in reductive atmos- phere by fundamental function of thermodynamics,by experiment,test the temperature of decomposition of calcium sulfate in the reductive atmosphere to be identical with the temperature of theoretical deduction.Conclude that re- ductive atmosphere is main fact in which the rate of fixed sulfur will decrease at low temperature.

    2007 03 No.49 [Abstract][OnlineView][Download 241K]

  • Study on the Preparation of CeO_2/γ-Al_2O_3 Desulfurizer and Sulfation Kinetics

    YU Qing-chun WANG Xin-dong Department of Physical Chemistry,University of Science and Technology Beijing,Beijing 100083,China ZHANG Shi-chao School of Material Science and Engineering,Beijing University of Aeronautics and Astronautics,Beijing 100083,China ZHANG Jie LU Zhen-ming Institute of Nnclear and Energy Technology,Tsinghua University,Beijing 102201,China

    In this paper 0.03gCeO_2/g(γ-Al_2O_3)adsorbent was prepared by impregnation and characterized by X- ray diffraction which showed that the dispersion of CuO supported onγ-Al_2O_3 was submonolayer.Thermogravimetric technique was used to study the intrinsic sulfation kinetics of CeO_2/g-Al_2O_3 sorbent.With increasing SO2 concen- tration and temperature,conversion would increase.Intrinsic kinetics equation was R=1.1394E(-4)oexp(- 1508.39/T)mg/mg·s.Activation of CeO_2 supported onγ-Al_2O_3 lowered much compared with that of pure CeO_2. Activation energy,reaction order with respect to SO_2,and pre-exponential were 12540.78J/mol,first order,and 1.1394Exp (-4) mg(mgos)-1 respectively.0.03gCeO_2/g(γ-Al_2O_3) desulfurizer could be regenerated,but long time would reduce its regeneration performance.

    2007 03 No.49 [Abstract][OnlineView][Download 213K]

  • Characteristics and Pollution of Mine Water

    LIU Yong SUN Ya-jun school of resource and earth science,CUMT,Xuzhou 221008,China WANG Meng Lianshui Environmental Monitoring Station,Lianshui 225800,China

    During the production of coal-mine,a large amount of mine water will be discharged without disposal.It not only causes the environment pollution of surrounding mining areas,but also wastes a great deal of precious water resources.By analyzed water resource and water quality of coal mines,Five classes of mining water are divided as clear mine water,high-SS mine water,high-TDS mine water,acidic mine water,and particular contamination mine water.The paper discusses generation mechanism of mine water and its pollution.

    2007 03 No.49 [Abstract][OnlineView][Download 307K]

  • Research about Characteristics of IGCC Power Plant for Environment Protection

    YAN Shun-lin WANG Jun-you WANG Jin-quan LI Tai-xing WEN Zhi-qiang (School of Energy and Power Engineering;North China Electric Power University,Baoding 071003,China)

    The present paper has analyzed the way and measure of IGCC on controlling pollutants emission in detail, the characteristics and advantage of IGCC on controlling pollutants emission are summarized in the paper.Through the comparison with conventional PC on those,the results indicate that the pollutants emission can be controlled ef- fectively in IGCC power station,and the indexes of pollutants emission are much lower than the advanced environ- ment protection criterion in the world

    2007 03 No.49 [Abstract][OnlineView][Download 330K]

  • Investigation of the Development Strategy to Coal Chemical Industry about Mining Group A

    ZHAO Lin-feng AN Jing-wen (School of management,China university of mining and technology (Beijing campus),Beqing 100083,China)

    It is necessary demand that mining group corporation A practices strategic management to the coal chemi- cal industry for the purpose of strong and greatness.The article will adopt the theory of modem strategic manage- ment in western.Development strategy for mining group corporation A will be constituted by the way of the (SWOT) analysis of interior environment,exterior environment and integration ability.

    2007 03 No.49 [Abstract][OnlineView][Download 265K]

  • Influencing Factors of China Coal Mine Safety and Prevention Countermeasures

    HUANG Jun NIU Yan-ping College of Resource and Environmental Engine,Wuhan University of Technology.Wuhan 430070,China LU Shan The Seventh Construction Corporation in Linhai City,Linhai 317016,China

    Through analysis of the actuality of high rate of accident,severe casualty and losing of economy,manage- ment is regarded as the most important factor influencing the safety of coal mine and some effective prevention coun- termeasures are proposed in this paper.

    2007 03 No.49 [Abstract][OnlineView][Download 184K]



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