2009年06期目次

  • Research on designment of industrial chains in eco-industrial park of coal chemistry based on the circulation economy

    ZHAN You LI Li-xin (College of Resource and Environment Engineering,Heilongjiang Institure of Science and Technology,Harbin 150027,China)

    This paper takes the Jidong county for example,The necessity of eco-industrial park of coal chemistry based on the circulation economy is analyzed.The industrial chains in eco-industrial park of coal chemistry is designed with the guidance of the eycle economy principle to reduce natural resource and energy consumption and waste emissions,The reference and basis are put forward for construction and development of eco-industrial park of coal chemistry.

    2009 06 v.15;No.64 [Abstract][OnlineView][Download 239K]

  • Research on the influences of pH value on coagulation and settlement of coal slurry

    XU Ning~1 MA Qiang~2 TAO Xiu-xiang~3 ZHAO Liang~1 ZHOU Dan-hong~1 (1.Department of Chemistry and Biology Suzhou College,Suzhou 234000,China;2.XueHu Coal Preparation Plant ShenHuo Group,Yongcheng 456550,China;3.School of Ch emieal Engineering,China University of Mining and Technology,Xuzhou 221008,China)

    Four metallic minerals (CaCl_2,MgSO_4,Al_2 (SO_4)_3 and FeCl_3) used respectively as coagulant in coal slurry under different pH,their effect on the settling efficiency was investigated by sedimentation experiment.It was indicated that the pH value had an influence on the setting effect.The effect regularity,that was acidic conditions were better than those in alkaline conditions,was identical for these different coagulants.But as far as the clarity of supernatant was concerned,it was better in alkaline conditions than those in acidic conditions when CaCl_2 and MgSO_4 and were used respectively,however,it was opposite when Al_2 (SO_4)_3 and FeCl_3 were used.

    2009 06 v.15;No.64 [Abstract][OnlineView][Download 161K]

  • Study on the role of Ca2+ in coagulation process clarifying coal preparation waste water (CPW)

    LI Yu-jie~1,GUO De~2,ZHANG Xiu-mei~2(1.Shenhua International Ltd.,Beijing 100011,China;2.Department of Safety and Environment,North-Chins Institute of Science and Technology,Beijing 101601,China)

    The calcium inorganic salts have become a coagulant to clarify coal preparation wastewater(CPW) in recent years, but the mechanism of action is unknown. Made clarifying CPW test using coagulant of CaSO_4 or AI_2 (SO_4)_3 and the flocculant of PAM, the electrokinetic potential of mine drainage and the SS of clarified water are determined. The experimental results show that there is different effect mechanism between Ca~(2+) and AI~(3+). Ca~(2+) being locative cation will be absorbed to the surface of coal particle in the electrical double layer by chemical bond and the surface potential and electrokinetic potential are changed. The electrokinetic potential will be reduced when the density of Ca~(2+) is amplified, but the dropping range was not much. The Ca~(2) being taken away by the sediment is smaller. In clarified water Ca~(2+) amount is bigger in endless cycles in the slurry system. The content of Ca~(2+) was must enough to use in compete with other cation ( AI~(3+) ,H~+ , Na~+ , K~+). Ca~(2+) can make the PAM efficiency cut down.

    2009 06 v.15;No.64 [Abstract][OnlineView][Download 644K]

  • Study on improving the density control of dense suspensions

    DU Zhen-bao,LU Mai-xi(College of Chemical and Environmental Engineeriag,China University of Mining and Technology,Beijing 100083,China)

    Heavy medium coal preparation process on the density automatic control can stabilize the product quality, analyze the factors impacting the density and separation effects,illustrate the importance of viscosity which can greatly affected by size composition.Adding viscosity to the density automatic control system as one parameter, which can perfect above system.

    2009 06 v.15;No.64 [Abstract][OnlineView][Download 411K]

  • Preliminary study on structure design for jet fluid emulsification apparatus

    LU Fang-qin~(1,2),LIU Wen-li~2(1.College of Materials Science and Engineering,Anhui University of Technology,Huainan 232001,China;2.College of Chemical and Environment Engineering,China University of Mining and Technology(Beijing),Beijing 100083,China)

    Introduce the floatation agent emulsification method based on spray application techniques and research the difference between the jet emulsifier and the common jet pump.

    2009 06 v.15;No.64 [Abstract][OnlineView][Download 177K]

  • Experimental research on flotation of a copper ore in Qinghai province

    XU Hong-xiang,CAO Yi-jun,KONG Ling-tong,HUANG Gen,DENG Xiao-wei(School of Chemical Engineering and Technology,China University of Mining and Technology,Xuzhou 221008,China)

    The raw ore sample adopted in this test mainly contained metal minerals of pyrite、copper pyrites、zinc blende、magnetite and so on including 1. 38% lcopper、40. 66% ferrum、38. 58% sulphur and 0. 05% cobalt. According to raw ore behaviour and existing production process flow, the flotation flow of two-stage roughing, three -stage cleaning and two-stage scavenging were investigated in detail. Finally obtained a copper concentrate of 16.75% Cu with a recovery of 79.95%. These separation indexes are satisfactory.

    2009 06 v.15;No.64 [Abstract][OnlineView][Download 1459K]

  • Study on the feasibility and technological issues of slime drying

    SUN Yin-hui~1,WEI Hong-wu~2(1.Shuiquan Washery,Shenhua Baotou Mining Corporation,Baotou 014100,China;(2.Tangshan Tianhe Science and Technology Development Co.,Ltd.,Tangshan 063020,China)

    Discussions on the feasibility of drying slime,introduce the feasibility and technological issues from the characteristics of slime,contradictions and problems brought by slime 、the status quo,drying effects、meaning、profit margins 、process maturity、 process design principles and several other perspective.

    2009 06 v.15;No.64 [Abstract][OnlineView][Download 223K]

  • Development of property and high added-value utilization of direct coal liquefaction residue

    ZHAO Peng~1,SUN Shu-jun~2,LU Zheng-yuan~3,CHEN Ying~1,ZHANG Xiao-jing(1.Beijing Research Institute of Coal Chemistry,China Coal Research Institute,Beijing 100013,China;2.《Clean Coal Technology》Editorial Department,Beijing 100013,China;3.Shandong Sai Feite Safe Environment Design Consulting Co.,Ltd.,Qingdao 266071,China)

    Introduced the composition, structure and properties of direct coal liquefaction residues and reviewed the research status of its high added-value utilization. On the basis of achievements and problems, future focus-bitumen modifier and carbon materials were pointed out and abandoning the traditional low efficiency of liquefaction residue application has important directive significance for Chinese direct coal liquefaction.

    2009 06 v.15;No.64 [Abstract][OnlineView][Download 195K]

  • The effect of sodium hydroxide treatment on biomass binder preparation

    LI Chun-tao,XI Bing,XU Bing,LIANG Yu-xiang(Institute of Chemical Engineering,Sichuan University,Chengdu 610065,China)

    The possibility of biomass treated with sodium hydroxide used as coal briquette binder was studied. The influence of concentration of NaOH solution and biomass species on briquette strength were researched and the briquetting mechanism of bio-briquette was observed by means of microscopy, SEM and Spectrum. The micro-structure analysis indicated that the modified biomass had bond role, NaOH concentration was proportional to the degradation of fiber which directly affects bio-briquette mechanical strength. The results showed that rice straw modified with 1.0% NaOH solution had better caking capability and biomass briquette had higher mechanical strength.

    2009 06 v.15;No.64 [Abstract][OnlineView][Download 936K]

  • Evaluation research of gasification coal water mixture additive used for low rank coal

    WANG Guo-fang~1,YAN Shu-juan~2,GUO Zhi-xin~1,HE Guo-feng(1.National Coal Water Mixture Engineering & Research Center,Beijing 100013,China;2.Chemistry & Environment Engineering College,China University of Mining anal Technology(Beijing),Beijing 100083,China)

    Based on the research of special additive technology in combustion coal water mixture and gasification coal water mixture characteristic and formation slurry conditions, a high cost performance special additive that is suitable for low rank coal gasification CWM was developed. The evaluation of it was also made through low rank coal slurry formation ability test.

    2009 06 v.15;No.64 [Abstract][OnlineView][Download 874K]

  • Study on the processing and utilization of lignite in China

    ZHAO Yong-fei~1,LI Xin-jian~1,GE Feng~2( 1.Tangshan tianhe technology development co.ltd,Tangshan 063000,China;2.Heaven and Earth Science and Technology Co.,Ltd.Tangshah Branch,Tangshan 063000,China)

    Analyze the situation of lignite processing and utilization, and put forward development direction and stratagem of China's lignite. Emphasize the fact that developing new type coal chemical industry suiting measures to local conditions is important in China, which can make better use of lignite resource .

    2009 06 v.15;No.64 [Abstract][OnlineView][Download 197K]

  • Study on the experimental feasibility of added binder blending coking

    WANG Cui-ping(Faculty of coal chemical engineering,Shanxi vocational and technical college of coal,Taiyuan 030031 China)

    Discussed the role of the binder in coal coking mechanism, introduced the testing process of 40kg coke oven, including the effect of binder, the best choice ol binder and the ratio of binder. Provided a program concerning adding binder in coking coal, which expanded the ratio of weakly coking coal and reduced the production cost, made a certain economic benefits.

    2009 06 v.15;No.64 [Abstract][OnlineView][Download 1471K]

  • Study on the change of surface morphology in the initial stage of combustion of Shenhua coal

    LIU Ming-rui,CHEN Ya-fei,JIANG Ying(Beijing Research Intitute of Coal Chemistry,China coal research institute,Beijing,100013,China)

    The paper described the change of surface morphology in the initial stage of combustion and discussed the relationship between burnout degree and surface morphology change by the SEM analysis of coke which got by different resident time in drop tube furnace, and the paper describe the behavior in the initial stage of combustion.

    2009 06 v.15;No.64 [Abstract][OnlineView][Download 529K]

  • Study on coal fired industrial boiler technologies in the US

    WU Li-xin,YU Jie(Beijing Research Institute of Coal Chemistry,China Coal Research Institute,Beijing 100013,China)

    This paper introduces the situation of industrial boilers and major coal fired industrial boilers technologies, describes the coal specifications and pollution control technologies for industrial boilers. It is found that the industrial boilers have kept higher operation efficiency through continuous technical transformation due to older age of the boilers. Special coal quality stipulations are for coal fired boilers in the US in order to ensure higher combustion efficiency and lower emissions. Coal-fired industrial boilers use various emission reduction measures, resulting in emission meeting the standards.

    2009 06 v.15;No.64 [Abstract][OnlineView][Download 730K]

  • The basic property and conprehensive utilization of the low temperature coal-tar

    ZHANG Yang,SUN Hui-qing,BAi Xiao-yan,WANG Li-bin(Beijing Research Institute of Coal Chemistry,China Coal Research Institute,Beijing 100013,China)

    The typical low temperature coal-tar samples were taken from Shenmu and Datong as the objects of the study. Analyzed the basic properties systematically, measured the contents of phenolic compounds of the coal-tar, identified the cube phenol which was exacted by aqueous alkali, and discussed the comprehensive utilization of coal-tar briefly.

    2009 06 v.15;No.64 [Abstract][OnlineView][Download 649K]

  • Operation optimizing for a compact CFB boiler with installing anti-wear device

    ZHANG Dao-kui~1,ZHU Chuan-xing~2,LV Hai-sheng~3,GAO Hong-pei~3(1.Henan Installation Group Co.,Ltd.,Luoyang 471000,China;2.State TVU Dawukou Power Plant,Shizuishan 753000,China;3.Xi' an,Thermal Power Research Institute Co.,Ltd.,Xi'an 710032,China)

    A compact CFB boiler of China Petroleum and Chemical Coiporation is faced with wear badly of water-wall. After installing multistage anti-wear device, well anti-wear effect is obtained. But operation parameters, bed temperature and so on change slightly. By optimizing, bed temperature is reduced and thermal economy is improved.

    2009 06 v.15;No.64 [Abstract][OnlineView][Download 205K]

  • Effect of heating rate and steam partial pressure on char gasification reactivity in Shenhua coal char and its maceral concentrates

    DING Hua~1,JIANG Ying~1,Li Wen-hua~2(1.Beijing Research Institute of Coal Chemistry,China Coal Research Institute,Beijing 100013,China;2.Coal Chemistry Committee of China Coal Society,Beijing 100013,China)

    Gasification reactivity of Shenhua coal char and it's maceral concentrates was investigated by non-isothermal thermogravimetiy. Effect of different heating rates and steam partial pressures on char gasification reactivity was analyzed. Gasification reactivity of samples was estimated based on maximum reaction rate and half-life. Results indicated gasification reactivity order of Shenhua char is vitrinite char > raw char > inertinite char in different heating rate and partial pressure under same gasification process.

    2009 06 v.15;No.64 [Abstract][OnlineView][Download 947K]

  • Analysis on metallogenic characteristics of China oil shale

    LI Xue-yong~(1,2),TAO Shu~1,HU Guo-li~3( 1.Key Laboratory of Marine Reservoir Evolution and Hydrocarbon Accumulation Mechanism,Ministry of Education,China;School ofEnergy Resources,China University of Geosciences (Beijing),Beijing 100083,China;2.Exploration Division of Jidong Oilfield Company,Tangshan 063004,China;3.Drilling & Production Technology Research Institute of Jidong Oilfield Company,Tangshan 063004,China)

    China is rich in oil shale resource, which deposit in continental lake, marine facies and marine-terrigenous facies, especially in continental environment. Oil shale resource-rich basin are mainly song-liao basin, ordos basin and zhunggar basin, which account for 76. 8% of the total oil shale resources reserves of China. Oilshale is mainly deposited in the Meso-Cenozoic times and it has diverse Output Status, mainly Thin-layer-like, and it almost has brown-black color, Organic matter type isⅠ-Ⅱ type kerogen. The quality ofoil shale in China are generally good and the oil shale resource, whose oil yield is more than 5% , makes up 67.64% of the whole oil shale resource.

    2009 06 v.15;No.64 [Abstract][OnlineView][Download 441K]

  • Research on preparation of activated carbon by coal blending for oil vapor recovery

    XIONG Yin-wu~1,LIANG Da-ming~1,XIA Jing-yuan~1,WANG Ling~1,SUN Zhong-chao~1,BAI Ya-na~2(1.Beijing Research Institute of Coal Chemistry,China Coal Research Institute,Beijing 100013,China;2.School of Chemistryand Environment Engineering,China University of Mining and Techaology(Beijing),Beijing 100083,China)

    Activated carbon for recovery of oil vapor was prepared from Taixi anthracite and Datong bituminous coal by changing the ratio of raw coal and process conditions. Various indexes of activated carbon were detected and the use of low-temperature N_2 adsorption measured its pore parameters. Adsorption capacity of activated carbon for oil vapor was characterized by butane working capacity ( BWC). The results show that BWC of activated carbon prepared by blending reaches higher value, which is 11. 1g/100ml. The ratio of raw coal is less affected on the BWC and activation time for longer is beneficial to improve the value of BWC. In the high specific surface area and larger pore volume conditions, the number of mesopores plays a very important role in preparation of activated carbon for gas recovery.

    2009 06 v.15;No.64 [Abstract][OnlineView][Download 791K]

  • Synthesis of butyl propionate catalyzed by cerium sulfate supported on coal based activated carbon

    MA Bo~1,WANG Jin-zhu~2,SONG Chun-lai~3,SHAO Jing-jing~(3*)(1.Donghao Corporation,Oil-gas Treatment Filiale,Daqing Oilfield Chemical Industrial Group,Daqing 163000,China;2.Jiaozuo Zhigong Medical College,Jiaozuo 454000,China;3.College of Resource and EnvironmentEngineering,Heilongjing Institute of Science and Technology,Harbin 150027,China)

    In order to find a green route of butyl propionate, this paper studied the synthesis of butyl propionate catalyzed by Ce_2 ( SO_4 )_3 supported on coal based activated carbon, the factor of esterification reaction yield, such as ratio between alcohol and acid, weight of catalyst and reaction time by the method of orthogonal design. Obtain the best synthesis conditions; the molar ratio of 1.4 : 1 , weight of catalyst of 0.6g, reaction time of 40 min, The optimum condition showed the esterification reaction yield of over 97% . The results showed that Ce_2 ( SO_4 )_3 supported on coal based activated carbon had a good catalytic activity for the synthesis of butyl propionate.

    2009 06 v.15;No.64 [Abstract][OnlineView][Download 492K]

  • Study on the relationships between optical texture of coke and quality of Coal and coke

    CHEN Hong-bo~1,BAI Xiang-fei~1,WANG Da-li~2,JIANG Ying(1.Beijing Research Institute of Coal Chemistry,China Coal Research Institute,Beijing 10013,China;2.Taiyuan coal Gasification Company,Taiyuan 030024,China)

    Analyze the defect in present standard on classification of coke optical texture, frequently-used research method on coke optical texture, reactivity of inertinite during coking, relationships between optical texture and reflectance distribution of vitrinite, relationship between optical texture of coke and coke quality are analyzed.

    2009 06 v.15;No.64 [Abstract][OnlineView][Download 644K]

  • Study on factors influencing the preparation of oil-coke

    GAO Hong-ge~1,HE Long~2,HAN Guang-dong~1(1.College of Chemical and Environmental Engineering,Shandong University of Science and Technology,Qingdao 266510,China;2.School of Chemical and Environmental Engineering,China University of Mining and Technology (Beijing),Beijing 100083,China)

    Oil-coke slurry can be used in oil fired furnace instead of the fuel. The viscosity index can meet the requirements of the application. The heavy bodied oil could make high viscous oil-coke slurry . It can reduce the viscosity by mixing different viscosity oil, also can make better use of high viscosity oil. Compound additive can make the oil-coke slurry stay steadily for several days. Besides, Temperature is also the important factor influencing the viscosity. The viscosity will lower with the temperature increased.

    2009 06 v.15;No.64 [Abstract][OnlineView][Download 661K]

  • Study on organic substance and ammonia removing from coke plant wastewater influenced by pH value and alkalinity

    ZHU Shou-dong~(1,2),CHENG Jian-guang~3,CHEN Ping~31.Shandong scientific and technical university geology information science and engineering college,Qingdao 266510,China;2.MaJiaTan construction Command Post ShenHua NingXia Coal Industry Group,Yinchuan 750000,China;3.College of Chemical and Environment Engineering,Shandong University of Science and Technology,Qingdao 266510,China)

    Discussed the treatment of distillation ammonia wastewater from coke-plant by SBR (sequencing batch reactors). The feasibility and cost effectiveness was tested. Performance of SBR process treating organic substance and ammonia was presented for different operating pattern and aeration time. Results from experiment showed that the pH value influenced nitrogen removal greatly.

    2009 06 v.15;No.64 [Abstract][OnlineView][Download 775K]

  • Occurrence speciality of polycyclic aromatic hydrocarbons in coking dust

    LI En-ke~(1,2),CHENG Xiang-li~1,CANG Da-qiang~1,TANG Rui~3,LI Mao-jing~2( 1.School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing,Beijing 100083,China;2.Tangshan Environment Monitoring Center,Tangshan 063000,China;3.College of Metallurgy and Energy,Hebei Polytechnic University,Tangshan 063009,China)

    The occunence speciality of polycyclic aromatic hydrocarbons(PAHs) in coking dust was obtained by classifying, ultrasonic pretreating and HPLC analysing dust samples collected from different sites of coking plant. Among the samples the PAHs content of the dust sample from dust bin of ground dedust station is the highest that is up to 1880. 83μg/g. In the coking dust the occurrence speciality of polycyclic aromatic hydrocarbons is obvious for small particle dust, and the PAHs contents of single constituent is quite different most of which contain 4-6 rings. Furthermore, large amount of benzo(a) pyrene is contained in the dust sample from dust bin of ground dedust station.

    2009 06 v.15;No.64 [Abstract][OnlineView][Download 913K]

  • Release rules of heavy metals in different Jining Ⅲ weathering gangue in immersion test

    JIA Hong-xia~(1,2),XIAO Xin~(1,2),ZHANG Shuang~(1,2),BAI Xin-lei~(1,2),SUN Zing-lian~(1,2)1.Jiangsu Key Laboratory of Resources and Environmental Information Engineering,Xuzhou 221008,China2.School of Environment Science & Spatial Informatics,China University of Mining and Technology,Xuzhou 221008,China)

    Take different weathering gangue from Ji-ning coal mine Ⅲ as the objects, carrying out the immersion test for the release rules of heavy metals. The results show that: (1) The values of pH both in the new and old gangue immersion solution were around 7 ～ 8, according with the Third Class of Environmental Quality Standards for Surface Water. The content of Cr was largest, followed by Mn、Zn and Pb, relatively a bit of Cu and Cd. Among of them, the content of Cr and Cd in the gangue were in excess of the Third Class of Environmental Quality Standards for Soils. (2)The same metal in the different weathering gangue took on the different rules in immersion tests, such as the metal of Cu, the peek concentration in the new gangue appeared at the beginning, while at the ending in the old one. Except the metal of Pb, the peek concentrations of other metals in the new gangue were higher than those in the old one. furthermore, the peek concentrations of Cr、Pb and Cd were in excess of Environmental Quality Standards for Surface Water.

    2009 06 v.15;No.64 [Abstract][OnlineView][Download 344K]

  • Application of coal gangue making sintering brick technology in Ta-shan coal mine

    WANG Yu-ming(Environmental Protection Department of Datong Coal Mine Group Company,Datong 037003,China)

    This paper describes the way of the Carboniferous coal gangue comprehensive utilization system and the technical background of the sintered brick. Describes in detail the production technology for the full-gangue materials, the application of two-stage vacuum hard plastic extrusion, the first firing and fully automatic, introduces the esign features and equipment selection of building 240 million / year of fired brick works projects. ( 120 million/ year production line) . Gangue brick project promotes the Tashan industrial park to optimize the industrial structure and enhances further the comprehensive economic strength of enterprises. It is one of the recycling industry chain in the Tashan industrial park.

    2009 06 v.15;No.64 [Abstract][OnlineView][Download 596K]

  • Application of molecular technology in soil microbial diversities' analysis

    LV Zuo-peng~1,TAO Xiu-xiang~1,WEN Hong-yu~2,WANG Shi-wei~1,SHI Kai-yi~1,CHENG Gan~1(1.School of Chemical Engineering,China University of Ming and Technology,Xuzhou 221008;China;2.School of Life Science,Xuzhou Normal University,Xuzhou 221116)

    Summarized the principles and methods of PCR-DGGE、cDNA、PLFA、BIOLOG、FISH and bioinformatics in molecular technology, and its application in the contaminated soil of mining areas. Discussed the influence of the heavy metal pollutant and the organic pollutant on soil microorganic diversity. And the using of these technologies for monitoring the soil pollution and analyzing the diversity of microorganism in soil. So, it's suggested that use molecular technology to obtain the information about microbial diversity in mining soil, and establish the library of microbial -bioinformation , accumulate and treat the information of microbial diversity, which is about microbiological degradation and aggregation . This bioinformatic library will be helpful for the mining soil ecosystem rehabilitation.

    2009 06 v.15;No.64 [Abstract][OnlineView][Download 277K]

  • Research and application of coal slurry cleaning equipment in shaft sump

    LOU Fang,ZHAO Hong-gang,MENG Huai,WEI Hao-ran,WANG Li,WANG Lu(Dongtan coal mine operation work area,Yanzhou Coal Mining Limited Company,Zoucheag 273512,China)

    main shaft hoisting system of coal mine is the major systems of mine safety and efficiency. The process of upgrading and loading of coal in the shed and mud set tank and water storage silt up which caused many years to clean up by using hand-dug. This way has a certain amount of security risk and clean-up difficult. In order to minimize security risks and labor intensity, we combine on-site practice, self-design and install a coal slurry clean-up device, and achieve very good cleaning results and economic benefils.

    2009 06 v.15;No.64 [Abstract][OnlineView][Download 266K]

  • Operation optimizing for a compact CFB boiler with installing anti-wear device

    ZHANG Dao-kui~1,ZHU Chuan-xing~2,LV Hai-sheng~3,GAO Hong-pei~3(1.Henan Installation Group Co.,Ltd.,Luayang 471000,China;2.State TVU Dawukou Power Plant,Shizuishan 753000,China;3.Xi'an Thermal Power Research Institute Co.,Ltd.,Xi'an 710032,China)

    A compact CFB boiler of China Petroleum and Chemical Corporation is faced with wear badly of water-wall. After installing multistage anti-wear device, well anti-wear effect is obtained. But operation parameters, bed temperature and so on change slightly. By optimizing, bed temperature is reduced and thermal economy is improved.

    2009 06 v.15;No.64 [Abstract][OnlineView][Download 1083K]

  • Research progress of dedusting facilities

    WANG Wan,ZHU Hua,LIU Yue,CHEN Lin,LIN Min,LI Zi-li(College of Chemistry and Chemical Engineering,Guizhou University,Guiyang 550003,China)

    Mainly analyze the advantage of inorganic ceramic membrane filtration dust collector, technology status and development trend, describe the dust removal mechanism, and explore the future of high temperature dust technology.

    2009 06 v.15;No.64 [Abstract][OnlineView][Download 170K]

  • Explore the feasible programe to increase coal washing capacity

    ZHANG Xue-guang~1,ZHANG Chun-ling~1,LU Jie~2(1.Daxing Coal Preparation Plant Diaobingshan 112701,China;2.Tangshan Branch,Tiandi Science and Technol Co.,Ltd,Taagshan 063012,China)

    It is a developing trend to produce clean coal and improve the ratio of washed coal preparation. In order to meet market demand, Consider comprehensivly the current status of process equipment, explore the constraints in coal washing areas, improve the washing capacity, increase economic benefits.

    2009 06 v.15;No.64 [Abstract][OnlineView][Download 818K]



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