2010年04期目次

  • Realization and reclamation of green technique in gas mining

    JIANG Cheng-yu~1, LI Chun-hui~2, SU Heng-yu~3 (1.College of Mining,Guizhou University,Guiyang 550003,China; 2.Faculty of Land Resource Engineering,Kunming University of Science and Technology,Kunming 650093,China; 3.Guizhou Mine Safety Scientific Research Institute,Guiyang 550025,China)

    The necessity of green technique in gas mining is proposed,describe the concept of green technique in gas mining on the basis of green technique in coal mining.Discuss the realization and reclamation of green technique in gas mining.An innovative way of turning gas from killer to helper has been accomplished.Excellent benefits will be achieved concerning economy,safety,society and environment

    2010 04 v.16;No.68 [Abstract][OnlineView][Download 185K]

  • Analysis of structural optimization and processing methods of coal products

    WANG Guan-chang,WANG Ze-nan (Changcun Coal Mine,Luan Huanneng Stock Company,Changzhi 046102,China)

    The quality of mine operation has changed after integration of coal resource.Adjusting the product structure becomes particularly important.Describe the necessary of adjusting the product structure as well as processing and utilization of coal using scientific methods.It is available for raising efficiency of resource utilization and promoting green development of coal mine.

    2010 04 v.16;No.68 [Abstract][OnlineView][Download 181K]

  • Application of liquid-solid fluidized bed to coarse slime separation

    HE Long~1, SHA Jie~2 (1.College of Applied Science and Technology,China University of Mining and Technology,Xuzhou 221008,China; 2.School of Chemical Engineering,China University of Mining and Technology,Xuzhou 221008,China)

    Introduce the present situation of coal separation industry of China.The effective separation of coarse slime is essential.Liquid-solid fluidized bed has more advantage than the other coarse slime separators because of its lower running cost and better separation effect.Introduce the operation principle and the application sitation of liquid-solid fluidized bed,predict its broad prospects,point out the importance of theoretical study to the development of liquid-solid fluidized bed in China.

    2010 04 v.16;No.68 [Abstract][OnlineView][Download 546K]

  • Optimization of circulation quantity in FJCA16-4 jet flotation machine

    WANG Qing-guo~1,CHEN Shuai~1,YANG Xiao-hong~1,HUANG Hai-feng~1,CHEN Xue-jian~1,DING Xue-gang~2 (1.Linhuan Coal Preparation Plant,Huaibei Mining Group,Huaibei 234139,China; 2.Tangshan Guohua Technology Co.,Ltd.,Tangshan 063020,China)

    Introduce how to get the best circulation quantity of three FJCAI6-4 jet flotation machines in Linhuan coal preparation plant by getting the proper working pressure and exit diameter of nozzles.The datas were obtained by a pairing contrast test of three FJCA16-4 jet flotation with different working pressure and exit diameter of nozzles each in the same feeding condition and verified by t-test method.

    2010 04 v.16;No.68 [Abstract][OnlineView][Download 997K]

  • Perfect dense medium system and reduce medium consumption

    REN Jing-long (Design Engineering Center,Tangshan Branch Company,Tiandi Science and Technology Co.,Ltd.,Tangshan 063012,China)

    How to reduce medium consumption is the key to cost savings in dence medium coal preparation plant. Introduce the current production situation of dual dence medium cyclone (φ1400 mm),analyze the reasons of high medium consumption and make some improvements,achive good results.

    2010 04 v.16;No.68 [Abstract][OnlineView][Download 147K]

  • Prospect analysis on coal-to-SNG and power generation system

    WANG Xu,LI Xian-yong (North China Power Engineering (Beijing) Co.,Ltd.,Beijing 100120,China)

    Increasing demand on high quality natural gas and high prices for natural gas have led more people to pursue unconventional methods of natural gas production.Analyze typical coal-to-SNG technology.Put forward new generation systems based on SNG (SNG-power peak regulation generation system and IGFC system) combined with high-efficiency generation system.Analyze the characteristics and prospect of the SNG generation system briefly.

    2010 04 v.16;No.68 [Abstract][OnlineView][Download 229K]

  • Current situation in coke passivating techniques

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

    Summarize the current research situations on coke passivator.The passivating effects of different passivators, the distinction of different passivating methods and the passivating mechanism were introduced.It indicates that a new technique in coking process or post-process is passivating process,and further research on passivating mechanism is much more important for developing the passivator.

    2010 04 v.16;No.68 [Abstract][OnlineView][Download 242K]

  • Selection of sulphuration scheme for COS hydrolysis catalyst

    ZHANG Chen-hui~1,WANG Zheng-dong~2,LIU Ying-hong~(3,4) (1.Sinopec Ningbo Institute of Technology,Ningbo 315103,China; 2.Liaohe Petroleum Vacational Technology College,Panjin 124103,China; 3.Beijing University of Science and Technology,Beijing 100083,China; 4.CNOOC New Energy Investment Co.,Ltd.,Beijing 100016,China)

    Based on the characteristics of crude syngas purification unit in Tianjin IGCC power station of Huaneng GreenGen Co.,Ltd.,explain application of COS hydrolysis catalyst in IGCC device,and analyze sulphuration scheme for COS hydrolysis catalyst,then select the best scheme.

    2010 04 v.16;No.68 [Abstract][OnlineView][Download 779K]

  • Reservoir characteristics and evaluation of Shuangmiao area to the South of Puguang gas field

    LEI Ke-hui~(1,2),TAO Shu~1,CHANG Xiu-fen~3,HU Han-min~4 (1.Key Laboratory of Marine Reservoir Evolution and Hydrocarbon Accumulation Mechanism,Ministry of Education,China; School of Energy Resources,China University of Geosciences (Beijing),Beijing 100083,China; 2.American PST Corp., Beijing 100101,China; 3.Halliburton(Tianjin) Beijing branch of energy service companies,Beijing 100004,China; 4.CNPC.NILE.,Beijing 100034,China)

    The characteristics of rock association,reservoir space,pore structure,pore distribution of Jia 2 and Fei 4 reservoir in Shuangmiaoehang structure,Puguang gas field were expounded.Meanwhile,the study of reservoir evaluation was done,and the correlations among the porosity,dolomite content and grained clastie content were discussed. The results show that Jia 2 reservoir is mainly composed of dolomite,whereas,Fei 4 reservoir is mainly composed of limestone.Jia 2 and Fei 4 reservoirs are mainly pore-fracture and fracture types,and Jia 2 reservoir develops more fractures than Fei 4 reservoir.Jia 2 and Fei 4 reservoirs have strong heterogeneity and different distribution characteristics,in which the physical property of Jia 2 is relatively superior to Fei 4.The relationship between the porosity of Jialingjiang reservoir and the degree of dolomitization shows significant positive correlation in three-steps.Meanwhile,it shows significant positive correlation between the porosity of Jialingjiang reservoir and the grained elastic content too,which is nearly two-steps.

    2010 04 v.16;No.68 [Abstract][OnlineView][Download 607K]

  • Study on rheological properties of coal oil mixture of binary system at normal temperature and atmosphere

    ZHAO Bao-ming~1,WANG Kai-ming~1,ZHAO Peng~2 (1.School of Science,Liaoning University of Science and Technology,Anshan 114044,China; 2.Beijing Research Institute of Coal Chemistry,China Coal Research Institute,Beijing 100013,China)

    A petrolium by-product different from traditional recycle solvent were chosen for COM preparation.Some influencing factors for viscosity change of COM were studied under normal temperature and atmosphere.Study the influencing law of theological property,shear rate,temperature and swelling of binary system on the COM viscosity. The results show that viscosity of COM increases with increasing of solvent viscosity.Apparent viscosity decreases with temperature increasing,and the relation equation of viscosity-temperature is established by analysis and regression of experimental data.

    2010 04 v.16;No.68 [Abstract][OnlineView][Download 468K]

  • Study of CO2 emission factors of coal combustion

    GAO Xin~1 WEI Gang~1 LI Shi-jun~1 MA Deng-qing~1,HE Ming~2 (1.Thermal Power Institute,Hebei Electric Power Research Institute,Shijiazhuang 050021,China; 2.Baoding Power Supply Company,Baoding 071000,China)

    Reliable prediction of CO_2 emission amount can provide a base for the calculation of CO_2 emission amount and reduction amount from coal-fired electricity generation unit.The predictive equations for CO_2 emission factors for coal combustion were developed with coal property data on different basis,as air dried basis,dry ash free basis. The predictive equations were checked by a different coal database.

    2010 04 v.16;No.68 [Abstract][OnlineView][Download 139K]

  • The emission characteristics of H2S during co-pyrolyzing of biomass and coal

    DONG Xin-guang~1,ZHANG Ge-rui~2, CHENG Shi-qing~1 (1.Boiler Dept,Shandong Electric Power Research Institute,Jinan 25002,China; 2.Huaneng Huangtai Power Plant,Jinan 250100,China;3.Shandong University,Jinan 250061,China)

    Four kinds of biomass (wheat stalks,corn stalks,cotton stalks and wood dust) and anthracite coal,bituminous coal were co-pyrolyed to study the rules of H_2S releasing.Gas Chromatogram (GC) and Mass Spectrum (MS) were used to test the H_2S release during co-pyrolyzing,influencing factors including co-pyrolyzing temperature and biomass proportion were investigated.The results show that H_2S released from blends co-pyrolyed is earlier than coal,more H_2S separate out at a lower temperature.There is a turning point of co-pyrolyzing temperature,the effecting condition is absolutely different lower and higher than that temperature.

    2010 04 v.16;No.68 [Abstract][OnlineView][Download 495K]

  • Study on microwave-promoted desulfurization of coal

    DING Nai-dong,FU Jia-wei,LI Zhao-xin,HE Qi-hui,HU Bai-xing (School of Chemistry and Chemical Engineering,Nanjing University,Nanjing 210093,China)

    Microwave irradiation was introduced to promote desulfurization of coal.The influence factors were investigated including the coal varieties,particle size and the reagents.The efficiency of desulfurization of pyrites was mainly been studied.The results show that the reaction conditions are moderate with a relatively low system temperature and the qualities of coal could be maintained as well.

    2010 04 v.16;No.68 [Abstract][OnlineView][Download 471K]

  • Study on transmittancy measurement of low rank coal

    CHEN Cui-ju (Xi'an Branch,China Coal Research Institute,Xi'an 710054,China)

    Mix coal with nitric acid and phosphoric acid,then determine the transmittance by way of visual colorimetric. Introduce the preparation of low rank coal,preparation of standard solution,coal sample processing.Illustrate the factors which influence the results and take appropriate measures.

    2010 04 v.16;No.68 [Abstract][OnlineView][Download 631K]

  • Progress of lignite upgrading technology

    XIA Hao,LIU Quan-run,MA Ming-jie (School of Materials Science and Engineering,Henan Polytechnic University,Jiaozuo 454003,China)

    Analyze recently development of lignite upgrading technology at home and abroad,introduce some typical lignite upgrading technologys and their developmental direction.

    2010 04 v.16;No.68 [Abstract][OnlineView][Download 189K]

  • The separation of group composition by column chromatography and GC/MS analysis

    WANG Shi-yu,BAI Xiao-yan,ZHANG Yang,WANG Li-bin,QU Si-jian (Beijing Research Institute of Coal Chemistry,China Coal Research Institute,Beijing 100013,China)

    Through the separation of the group composition by the column chromatography and GC/MS analysis,the low-temperature coal tar has been divided into four different groups including aliphatic series,aromatic series,esters and polar fraction.A further study has been made on the classification and the relative content of aliphatic hydrocarbon (chain alkanes,Cyclanes,Alkenes,etc.),aromatic group (Naphthalenes,Anthracenes,Phenanthrenes, etc.),oxygenated chemicals and nitrogen compounds.Qualitative and quantitative analysis on the chemical composition of the low-temperature coal taris made.

    2010 04 v.16;No.68 [Abstract][OnlineView][Download 1175K]

  • Research on drying characteristics of lignite

    TAO Jian-hong (China Pingmei Shenma Energy and Chemical Industry Group CO.,Ltd.,Pingdingshan 467000,China)

    Fluidized bed drying lignite has fast drying dehydration characteristic.For Mongolia lignite,while the drying temperature is below 200℃,it costs at least 8 minutes to reach the condition that the water content of coal is close to critical dry water content by removing external water of coal.While the drying temperature is higher than 220 ℃,drying rate has been speeded up,the time is reduced to 8 minutes.Dehydration characteristic equation accord with single diffusion model,there is close relation to drying law and drying medium temperature and wind speed.

    2010 04 v.16;No.68 [Abstract][OnlineView][Download 194K]

  • Experimental study of modification and dewatering of lignite in Manglai mine

    DONG Jin-ze~1,MA Man~2 (1.China Railway Resources Group Co.,Ltd.,Beijing 100070,China; 2.Beijing Clean Star Scientific and Technological Development Co.,Ltd.,Beijing 100070,China)

    Water and parts of oxygen-containing functional groups effecting heat value of Manglai lignite were removed by the way of modification and dewatering technology of belt furnace.This technology enrich the components of heat,improve the heat value,which accords with the index of high calorific value fuel coal(≥20.9 MJ/kg).

    2010 04 v.16;No.68 [Abstract][OnlineView][Download 442K]

  • Application of modified fly ash in treating oil-contained wastewater

    GU Xi-hui~1, LI Li-feng~1, TENG Hou-kai~1, CHEN Jun~1, YANG Zi-li~2 (1.CNOOC Tianjin Chemical Research & Design Institute,Tianjin 300131,China; 2.Hebei University of Technology,Tianjin 300130,China)

    Fly ash properties was modified respectively by hydrochloric acid,as well as first fly ash is prepared through crafting polymeric quaternary ammonium base groups.IR and physical adsorption instrument were used to study the distribution and functional groups on adsorption of the modified fly ash.The results show that fly ash treatment have a better efficiency.Solid surface sterilization of groups containing antimicrobial activity of modified fly ash maintains more than 98% and has good inhibition stability.The modified fly ash can solve the problems of blocking of biological pollution and excessive biological indicators of effluent quality.

    2010 04 v.16;No.68 [Abstract][OnlineView][Download 326K]

  • Study On phosphorus in municipal wastewater adsorpted by activated coal-measures kaoline(Ⅰ)

    SHEN Wang-qing,LI Dao-hua (Department of Chemistry and Life Science,Neijiang Teachers College,Neijiang 641112,China

    Phosphorus in municipal wastewater adsorpted by coal-measures kaoline which was activated by Na_2CO_3 had been studied.When the roast temperature is 700℃ to 750℃,adsorption rate could be got to maximum.Under the same conditions,the adsorption rate of coal-measures kaoline that have been roasted after activated is lower than coal-measures kaoline that has been activated after roasted.Adsorption rate could be got to maximum,when concentration of sodium carbonate is 2 mol/L,solid-to-liquid ratio is 10 g/L,the adsorption rate could be got to the peak respectively,and liquid film diffusion is central step.

    2010 04 v.16;No.68 [Abstract][OnlineView][Download 208K]

  • Adsorption characteristics of sediments on phosphorus in coal mining induced subsidence wetland

    SUN Zong-lian~(1,2),MENG Qing-jun~(1,2),XIAO Xin~(1,2),LIU Si~(1,2),WANG Qian~3 (1.School of Environment Science and Spatial Informatics,China University of Mining and Technology,Xuzhou 221116,China; 2.Jiangsu Key Laboratory of Resources and Environment Information Engineering,Xuzhou 221116,China; 3.Environmental Supervision Bureau of Jianhu,Yaneheng 224700,China)

    The environmental behavior of phosphorus in sediment-water interface of mining induced subsidence wetland is quite different fi'om that of other types of wetlands.Obtained results by phosphorus adsorption kinetics and adsorption isotherm experiments of sediment of subsidence wetland in Panbei coal mine of Huainan mining area. The results show that the phosphorus adsorption of the sediment can be completed in a relatively short period of time,the adsorption capacity of the sediments are strong,and can up to 609 mg/kg;The organic matter content of sediments has a positive correlation with the saturation adsorption capacity and the degree of spontaneous adsorption; The microorganisms in the sediment can promote the phosphorus adsorption in a certain role.

    2010 04 v.16;No.68 [Abstract][OnlineView][Download 704K]

  • Recognition and control of hazard of coal enterprise environment affairs

    ZHANG Ai-qing (Environmental Protection Department,Datong Coal Mine Group Company,Datong 037003,China)

    Various environment affairs inevitably occoured during the development of Datong coal mine group company. Explore the identification technique of hazard of environment,study the control aiming at different risk grade of hazard and emergency methods which are used in supervising hazard of environment affairs,upgrade environment affairs prevention and control level.

    2010 04 v.16;No.68 [Abstract][OnlineView][Download 503K]

  • Geochemical characteristics of oil and correlation of oil to source rock in ramp region of Wunan depression of Hailaer basin

    YANG Wei-hong~1,HOU Du-jie~1,LI Song~1,TAO Shu~1,LU Kun~2,HONG Hai-feng~3 (1.School of Energy Resources,China University of Geosciences (Beijing),Beijing 100083; 2.Research Institute of Petroleum Exploration and Development Zhongynan Oilfield,Puyang 457001,China; 3.Hailar Petroleum Exploration and Development Command,Daqing Oilfield Co.,Ltd.,Hailar 021008,China)

    The physical properties of ramp region of the Wunan depression oil are low density,low viscosity,high wax content and high freezing point;and its geochemical characteristics are high content of saturated hydrocarbons and low value of carbon isotope.It is mainly mature oil formed in the fresh water-brackish water environment.There is a high content of land-based plants and a certain content of aquatic plankton and algae in the parent materials of the oil. According to the group composition,carbon isotope and the biomarker data comparison of the oil and source rocks in the study area,draw the conclusion that the crude oil of the Tongbomiao group are mainly comes from the dark claystone of the Tongbomiao group;and the mother rocks of the Nantun crude oil are the dark claystone of the Nantun group and the Damoguaihe group;and the crude oil of the Damoguaiheer sector is a mixture of the mature oil which comes from the Nantun and Tongbomiao groups and the immature oil generated from the Damoguaihe group.

    2010 04 v.16;No.68 [Abstract][OnlineView][Download 1114K]

  • Study of weld repair of leaking pipes in washery

    LI Jie-wei (Fangezhuang Branch Mining Company,Kailuan Energy and Chemical Industry Co.,Ltd.,Tangshan 063109,China)

    Introduce the spotted weld repair,strip crack weld repair,interception weld repair,supplement block weld repair,whole tube weld repair targeting the leakage of material pipes in washery.These weld repair extend the lifespan of wipes,ensure the emergency repair in production.

    2010 04 v.16;No.68 [Abstract][OnlineView][Download 88K]

  • Improvement of filter pressing control system in easten Linhuan preparation plant

    WANG Hai-xin,LIU Hai-zeng (School of Materials Science and Egnineering,Anhui Polytechnic University,Huainan 2321001,China)

    The filter pressing system has been modified by programmable logic controller based on FIX。The improved control system structure and characteristics were analyzed.Introduce the principles,functions and features of programmable logic controller.The results show that the level automation is improved,ensure safe and reliable operation of coal preparation,achievegood economic and social benefits.

    2010 04 v.16;No.68 [Abstract][OnlineView][Download 153K]

  • Application of comprehensive protector to electric system to supply and use

    PEI Yao-jun,FU Chun-hong,XU Jian-zhong (Luliangshan Coal Company Coal Washary,Huozhou Coal Group,Luliang 033102,China)

    Introduce the improvement measures which is against the existing problems in power supply and electrical protective device in Luliangshan coal company coal washary.This ensure the continuous and stable operation and protect the scene,construct protective web to high and low voltage power supply and electromechanical device. Coal washery can product safely and run smoothly.

    2010 04 v.16;No.68 [Abstract][OnlineView][Download 293K]

  • The application of ultrasonic distance measurement in coal level detecting

    LI Ming (Beijing Research Institute of Mine Construction,Tiandi Science and Technology Co.,Ltd.,Beijing 100013,China)

    Introduce the application of ultrasonic diatance measurement in coal level detecting system,describe the factors which influence the detection precision and introduce the solving measures.Bulid the coal level detecting model with the questions of transmitting power and receiving sensitivity solved.Propose the feasible detection methods and theory according to analyzing the characters of sound wave spread.

    2010 04 v.16;No.68 [Abstract][OnlineView][Download 198K]
    • 下载本期数据


Clean Coal Technology            京ICP备05086979号-19

Website  Copyright © 2019 Clean Coal Technology 
Coal Tower, Hepingli, Chaoyang District, Beijing, China. 100013
Tel:  86-10-87986452 / 010-87986451           E-mail:  jjmjs@263.net