2009年05期目次

  • Study on the index system construction of CMM power generation technology evaluation

    ZHAO Lu-zheng1, YAO Fei1,CHEN Gui-feng2(1. School of Economics and Management, Beijing University of Chemical Technology, Beijing 100029, China; 2. Clean Coal Engineering & Research Center of Coal Industry, Beijing 100013, China)

    Analyze current situation and characters of CMM power generation technology then construct the index system of CMM power generation technology evaluation including four aspects: technique, economy, environment and society, this can establish a firm foundation for evaluating CMM power generation technology.

    2009 05 v.15;No.63 [Abstract][OnlineView][Download 475K]

  • Discussion of developing circular economy type frame construction in Jixi mining area

    GU Jin-feng, DONG Ping(College of Resources and Environment Engineering,Heilongjiang Institute of Science and Technologe, Harbin 150027,China)

    According to the request of "Circular Economy Promotion Law of the People's Republic of China"and the Jixi mining area actual situation, discuss the frame construction about developing circulation economic type in Jixi mining area, which is advantageous for developing circular economy in local and the coal production area.

    2009 05 v.15;No.63 [Abstract][OnlineView][Download 460K]

  • Measures to reduce power consumption in large coking coal preparation plant

    WANG Qing-guo1, GAO Lei1, ZHENG Li-xin1, ZHAO Shu-hui2, LI Jin-hua2, ZHAO Li-juan2(Linhuan Coal Preparation Plant, Huaibei 235141, China;2. Tangshan Guohua Technology Co., Ltd., Tangshan 063020, China)

    Qualified from the reduction of coal slurry in qualified suspension and controlling the concentration of magnetic separator feed two craft ideas, introduce the international advanced level of technical measures which can drop the medium consumption to 1.0kg/t below.

    2009 05 v.15;No.63 [Abstract][OnlineView][Download 363K]

  • Research on influencing rules of water-soluble and high-molecular compound on flotation and filtering of coal

    TIAN Xiao-peng(National Center of Supervision and Inspection for Coal and Chemical Product Quality, Taiyuan 030012, China)

    During the research of flotation and filtering of the coal from Ximing of Taiyuan, join four different flocculants, such as PAM, PEO, Polyacrylic acid-natrium and Chttosan. The results prove that the PEO-type of Pharmaceutical has a greater influence on the flotation and filtration process, it can improve the yield of clean coal, increase ash of refuse, speed up the filtration rate and reduce the moisture of the cake. For catioic PAM, it doesn't have obvious rules. The effects of Polyacrylic acid-natrium and chitosan are too small according to the ash and the yield.

    2009 05 v.15;No.63 [Abstract][OnlineView][Download 409K]

  • Summary of reagents of coal slurry treatment

    LIU Xiao-mei1,LIU Jiong-tian1,2,LV Xin-lei1(1. School of Chemical Engineering &Technology, China University of Mining & Technology, Xuzhou 221008; 2. School of Resources & Civil Engineering, Northeastern University, Shenyang 110004, China)

    Types and characteristics of flocculants, coagulants in the current coal slurry treatment were described.It also summarized the main researches on coal slurry treatment at home and abroad and the latest researches on effective reagents of coal slurry treatment.It detailed introduced some newly application situation in coal slurry treatment.Research and development of efficient, safety, pollution-free reagents of coal slurry treatment is proposed to be made the main forecast on the reagents research area.

    2009 05 v.15;No.63 [Abstract][OnlineView][Download 191K]

  • The practice of coal-blending selecting in coal preparation

    ZHAO Long, JIA Qian(Coal Preparation Design Engineering Cente, World Tangshan Branch, Tangshan 063110, China)

    The blending preparation proportion not only affect the stability of production but also influence the economic benefits. under the guidance of coal preparation theory, Optimize the calculation of the ratio by using computer which is simple and practical and have a positive practical significance on-site production.

    2009 05 v.15;No.63 [Abstract][OnlineView][Download 237K]

  • Research in the regularity of slime adsorbing kerosene

    LI Yu-jie1, ZHANG Xiu-mei2, GUO De2 (1.Shenhua International Trade Co., Ltd., Beijing 100011, China; 2. Resources and Environmental Engineering, North China Institute of Science and Technology, Beijing 101601,China)

    Determine kerosene adsorption quantity on coal surface byβ-cyclic dextrin spectrophotography method on the term of analyzing adsorption kerosene in the slime dilute solution. The regularity of slime adsorbing kerosene correspond to Freundlich adsorbtion by studying and the theory is expressed by means of equation.

    2009 05 v.15;No.63 [Abstract][OnlineView][Download 237K]

  • Operating Counterplan Study of Direct Coal Liquefaction Plant

    WU Xiu-zhang1,2,SHU Ge-ping1(1. Shenhua Group Corporation, Ltd.,Beijing 100011,China; 2. State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249,China)

    In order to obtain operation experiences for 6000t/d Shenhua direct coal liquefaction demonstration plant, the pre-arranged planning studies of different abnormal situations, such as the reduced supplied of catalyst and sulfur or interruption supply of catalyst and sulfur, were carried out at 6t/d process development unit (PDU). The study results shows that the supplies of catalyst reduced by half or assist catalyst sulfur interrupted have a lower impact on the operation of direct coal liquefaction plant, and it can be balanced by the proper increase of the load of preheating furnace. And the supplies of catalyst entirely interrupted have a greater impact on both the operation and the product quality of direct coal liquefaction plant, although the operation can hold.

    2009 05 v.15;No.63 [Abstract][OnlineView][Download 586K]

  • Study on feature of coal water slurry(CWS) made of magnetic additive or magnetic water

    ZHAO Yan-hong(College of Resource and Environment Engineering, Heilongjing Institute of Science and Technology, Harbin 150027, China)

    In order to analyze the influence of the magnetic water and magnetic additive to CWS, CWS is made of Jixi bituminous coal, through orthogonal experimental method, find the magnetic intension, magnetic time how to work to CWS and the best compound condition, and contrast CWS made of the magnetic additive with which made of the magnetic water, lastly analyze the magnetic mechanism through adsorbed additive on the coal surface.

    2009 05 v.15;No.63 [Abstract][OnlineView][Download 495K]

  • Development and model selection of vapor-liquid equilibria at high temperatures and high pressures for direct coal liquefaction system

    MAO Xue-feng,HU Fa-ting,SHI Shi-dong,AI Jun(Beijing Research Institute of Coal Chemistry, China Coal Research Institute, Beijing 100013, China)

    The article firstly spreads out exposition of the basic theory of vapor-liquid equilibria and the development of phase equilibrium calculation at high temperatures and high pressures was reviewed. Several models such as equation of state model, mixing model,Gibbs free energy-equation of state model were introduced. The research thought and application characteristics of Gibbs free energy-equation of state model were emphatically introduced. In accordance with the characteristic of high temperature,high pressure,strong asymmetry,strong polar,completely non-ideal system for direct coal liquefaction, the Gibbs free energy-equation of state model gave more precise result than equation of state model with conventional mixing rule and mixing model.

    2009 05 v.15;No.63 [Abstract][OnlineView][Download 286K]

  • Numerical simulation about pressure's influence on the bubble's characteristic in scrubbing-cooling chamber

    ZHAO Qian-qian, XU Feng, WU Xuan, ZHANG Guang-peng, YUAN Zhu-lin(Institute of Energy and Environment, Southeast University, Nanjing 210096, China)

    In order to reveal the heat and mass transfer characteristics of synthetic gas passing through the liquid cistern in scrubbing-cooling chamber,especially the effect of the working pressure,a dynamic simulation has been carried out by using the VOF model. A method of extracting the gas fraction and perimeter from the calculated results is created and on the base of which the effect of the pressure is systemically studied .the result of the study show that the wet perimeter increase dramatically with the pressure augmenting; the average gas fraction and wet perimeter rise along the height under the same operating pressure while all of them increase with pressure augmenting on the same height; this paper gains the change disciplinarians of the perimeter along with the working pressure.

    2009 05 v.15;No.63 [Abstract][OnlineView][Download 291K]

  • Study on the development and application of lurgi gas gasification

    WANG Peng, JI Xu-guo(Beijing Research Institute of Coal Chemistry,China Coal Research Institute, Beijing 100013, China)

    Discuss development of history、technical characteristics of lurgi gas gasification and the application status quo at home and abroad. Highlight the application of this technology in the fertilizer plant in Shanxi Tianji, Yima gas, Sasol of South Africa and the United States, the Great Plains, prospect the application of this technology in the domestic chemical industry,especially lignite.

    2009 05 v.15;No.63 [Abstract][OnlineView][Download 541K]

  • The situations and application of efficient pulverized coal fired industrial boiler technique

    JI Ren-shan1,WANG Nai-ji1,XIAO Cui-wei1, WANG Yong-gang2(1.Beijing Research Institute of Coal Chemistry,China Coal Research Institute, Beijing 100013, China; 2. School of Chemical and Environmental Engineering,Chinese Mining Industry University (Beijing),Beijing 100083,China)

    The current industrialization status abroad of efficient pulverized coal fired industrial boiler technology is summarized. The principle, features, standards, and performance of the domestic technology and its practical effects on saving energy and reducing pollutant emissions are stated in contrast with the traditional layer burning boilers, coal-water slurry boilers and oil and gas boilers on technique and economy. Contract energy management mechanism, the specific content of energy-saving mode for financing and its adaptation for the industrialization of efficient pulverized coal fired industrial boiler are specified. The development potential of the efficient pulverized coal fired industrial boiler is also analyzed in the paper.

    2009 05 v.15;No.63 [Abstract][OnlineView][Download 429K]

  • The combustion judgment of tangentially pulverized coal fired boiler

    LI Jun, YAN Wei-ping(Key Laboratory of Condition Monitoring and Control for Power Plant Equipment (North China Electric Power University), Ministry of Education, Baoding 071003, China)

    Aimed at the problem of combustion judgment of 300MW tangentially pulverized coal fired boiler, The factor analysis method is firstly to apply to solve the question. The combustion influence factors are reduced. By calculating the combined score according to the public factors, a factor analyzing diagnosis for combustion judgment was carried out and the results are reasonable. It offers a new method of combustion judgment which is better than the common methods.

    2009 05 v.15;No.63 [Abstract][OnlineView][Download 348K]

  • Progress of acetylene from coal pyrolysis using hydrogen plasma

    FANG Shi-dong, MENG Yue-dong, SHU Xing-sheng, CONG Jie, SHEN Jie, CHEN Long-wei (Institute of plasma physics, Chinese academy of sciences, Hefei 230031,China)

    The principle of the production of acetylene from coal by hydrogen plasma pyrolysis was reviewed. Experimental apparatus of pilot scale in China and the operation conditions were introduced. The coking reason of reactor and the method of coke cleaning were presented.

    2009 05 v.15;No.63 [Abstract][OnlineView][Download 125K]

  • Study on gas composition and physicochemical property about escape gas in silicon carbide furnace

    WANG Ai-min1, BAI Ni1, WANG Xiao-gang2(1. College of Chemistry and Chemical Engineerin,Yulin University, Yulin 719000,China; 2. Department of Material Science and Engineering,Xi'an University of Science and Technology, Xi'an 710054, China)

    Using multi-heat silicon carbide furnace designed by the author themselves, synthesized SiC with raw materials of coal (or coke) and quartz,great deals of fuel gas were produced at the same time. Also study the influence of coal and smelting technology on gas composition and acidity-basicity, analyzed economic benefits. The results showed that fuel gas mainly was composed of carbon monoxide(CO), the average content of CO reaches up to 70%, the average content of the CO+H2 and CO+H2+CH4 reaches 85% and 90% respectively. The content of CO could be improved by using anthracite、coke or roasting method.,This could save 25.8% for the generating of fuel gas.

    2009 05 v.15;No.63 [Abstract][OnlineView][Download 431K]

  • Effect of coal blending on the ash fusion temperature and the prediction model for the ash fusion temperature

    Li Ji-bing1,2, SHEN Ben-xian1, LI Han-xu3, ZHAO Ji-gang1, WANG Ji-ming1(1.State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China; 2. Anqing Branch Co.,SINOPEC, Anqing 246001,China; 3.Department of Chemical Engineering, Anhui University of Science and Technology, Huainan 232001,China)

    Due to the high ash fusion temperature of the coal from the Liu-qiao No.2 coal mine in Wan-bei (A), this type coal could not meet shell coal gasification for slag-tapping. Coal blending technology used to reduce ash fusion temperature of coal A was studied. This can significantly reduce the high fusibility of the coal A to meet the requirements of the shell gasifier slag-tapping process. The prediction model was established according to the relationship between coal ash fusion temperature and chemical composition of ashes by linear least square method. Showed that increasing the content of MgO and CaO in coal blending ash could significantly decrease the ash fusion temperature, the higher content of SiO2 has on condition that the total content of SiO2 and Al2O3 in the ash coal blending is constant can further decrease the ash fusion temperature. At the same time, the model could predict the coal blending ash fusion temperature by the three type of coal well.

    2009 05 v.15;No.63 [Abstract][OnlineView][Download 675K]

  • Study on the molecular formulas of Shenhua coal and its macerals

    GU Hong-wei(Coal sales center,China Shenhua Energy Company Limited,Beijing 100011, China)

    Shenhua coal and its vitrinite concentrate and inertinite concentrate are analyzed through proximate analysis、element analysis、 anthracology analysis、infrared spectrum analysis and so on.The molecular formulas of these three samples are obtained by mathematical analysis.

    2009 05 v.15;No.63 [Abstract][OnlineView][Download 339K]

  • Study on blockage remover technology of coal-bed gas

    LIU Ying-hong1,2,LIU Qiang2,SUN Hai-ping2,LIU Chun-yan3(1.Beijing University of Science and Technology, Beijing 100083,China; 2. China National Offshore Oil Corp., Beijing 100016, China; 3. Chengde Petroleum College, Chengde 067000, China)

    The surfactant could reduce the tension between the coal and the water molecule,the particles of coal are easy to be moistened by water. The fluid slurry could take the particles of the coal plugged up the slit of the coal bed to gain the ends of blockage remover. The results of the research the effect of the different kinds of surfactants show that: PS could reduce the tension obviously, and remove the particles of the coal efficiently to increase the quantity of coal-bed gas.

    2009 05 v.15;No.63 [Abstract][OnlineView][Download 383K]

  • Study on flow drag characteristic of lignite during upgrading process under low temperature

    MIAO Wen-hua1,2,BAI Zhong-hua1,2,ZHANG Xu-hui1,2(1. Department of Power Station Auxiliary Equipments Technology of CEPRI,Beijing 100070,China;2.Beijing GuodianFutong Science and Technology Development Co.,Ltd,Beijing 100070,China)

    Taking lignite in Xilinhaote particles of 10 mm as study objects,set up a numeric simulation of the throat of the condenser with SIMPLE algorithm and Eulerian model. With the numeric analogue of computer,proceeded numeric research of G-S two phases flow drag characteristic. Analyzed effects of flow drag on flow,built experiment platform of G-S two phases flow,compared the results,providing theoretical guidance meaning for studying flow drag characteristic in producer.

    2009 05 v.15;No.63 [Abstract][OnlineView][Download 226K]

  • Study on simulation model of coke oven gas recycling system

    YAN Lei,ZHOU Min(School of Management,China University of Mining and Technology,XuZhou 221116,China)

    A dynamic simulation model of production and oprating system in using coke oven gas to pruduce methanol is set up with the help of system dynamics.First,the causal relationship diagram of the production and oprating system is drawn.Based on this the paper of system dynamics flow diagram is plotted.After the reality checks,this model is used to simulate and forecast methanol's production and oprating in LH Industrial Park. The research shows that the model,simulating adequately the practical conditions,is effective and credible. It will help to elicit correct development strategies for Chinese pruduction and oprating of using coke oven gas to produce methanol;Meanwhile,both in theory and practice,it can facilitate the coordinate and sustainable development for those areas.

    2009 05 v.15;No.63 [Abstract][OnlineView][Download 394K]

  • Study on prevention of autoignition of gangue hill by fly ash grouting material

    WANG En,FAN Shao-wu,MA Chao(Security Branch,China Coal Research Institute,Beijing 100013,China)

    Autoignition of gangue hill seriously pollute the environment,endanger the health of the people of the mining area. It can get social and economic benefits by using fly ash grouting material to extinguish a fire. Fly ash grouting material which show weak alkaline can buffer acid water and curb Thiobacillus-type bacteria growth,slow down the oxidation rate of pyrite,slow down the accumulation of heat in gangue hill. After concretion,it can effectively blocked pore,reduce the speed of the internal air circulation,thereby prevent autoignition of gangue hill.

    2009 05 v.15;No.63 [Abstract][OnlineView][Download 69K]

  • Simulation and analysis of pressure loss of the wide-range liquid-solid hydrocyclone separation

    LI Ting,XIANG Xiao-dong,LIU Li,WANG Yan (College of Resources and Environment,Wuhan University of Science and Technology,Wuhan 430081,China)

    A new type of liquid-solid hydrocyclone is proposed,which can separate heavy and light particles at the same time. Experimental study revealed that at the flow of 25 m3 / h and the split ratio of 6%,this new type hydrocyclone can get maximal separation efficiency for the heavy particles;at the flow of 25m3 / h and the split ratio of 8%,it can get the highest separation efficiency for the light particles. Under the condition of the flow of 20m3/h～35m3/h,the distribution of static pressure,dynamic pressure and pressure drop within the hydrocyclone are simulated and analysed by the fluid software CFX. Results show that in the cylindrical section of the hydrocyclone,the dynamic pressure gradually decreased from top to bottom,while in the cone section,dynamic pressure gradually increased from top to bottom;in a certain range,in order to further improve the separation efficiency and reduce the pressure loss inside the hydrocyclone,it is necessary to avoid increasing entrance flow rate and appropriate to increase the split ratio.

    2009 05 v.15;No.63 [Abstract][OnlineView][Download 450K]

  • Analysis of mercury control methods for coal-fired power plant

    SUN Li-mei ( Department of Environment Engineering,Shanghai university of electric power,Shanghai 200090,China)

    Atmospheric mercury pollution problem has aroused the attention of states,mercury pollution comes mainly from coal-fired power plant. Mercury pollution prevention has been the most processing problem in electric power industry in 21th century. Analyzed methods of controlling mercury emission,Compare and analysze mercury removal of desulfurization system in coal-fired power plant. Reciew mercury control methods of coal-fired power plant.

    2009 05 v.15;No.63 [Abstract][OnlineView][Download 242K]

  • Experimental research on ash fly separator for stokes boiler with high-efficiency and low-resistance

    SONG Bo,JIN Jing,JIANG Jiang,SHA Yong-tao,JIANG Hong,LIU Rui,FAN Jun-jie (Department of Power Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China)

    Do experiment research on down-exhaust cyclone separator used for stokes boiler,research the separating efficiency and the resistance of the down-exhaust separator affected by some factors such as diameter of the vent-pipe,the deepness of the guider,the distance between the guider and the vent-pipe(the distance) and so on. After the experimentation,the best condition is the diameter of the vent-pipe 0.75D,the deepness of the guider 0.75D,the distance between the guider and the vent-pipe 0.5D. Its comprehensive property is better,and best suitable for stokes boiler as its fly ash separator.

    2009 05 v.15;No.63 [Abstract][OnlineView][Download 456K]

  • Study on the treatment of laboratory wastewater by activated fly ash

    XIA Hong-xia,ZHU Qi-hong(Chongqing University of Arts and Sciences,Chongqing 402168,China)

    Activated fly ash was used to treat laboratory waste water using different quantity、time、temperature、pH、rotational speed. The results showed that Cr(Ⅵ)of laboratory wastewater were much better adsorbed by the activated fly ash. When optimum condition is that adsorbent quantity is 4g,adsorbent time is 20min,adsorbent temperature is 20℃,pH is7.0 and adsorbent rotational speed is 70r/min,activated fly ash capacities of Cr(Ⅵ)is high to 89.9%.

    2009 05 v.15;No.63 [Abstract][OnlineView][Download 202K]

  • The utilization and resource regeneration of the desulfurization fly ash

    SHAO Xia1,LU Wen-xiong2(1.Shanghai Institute of Technology,Shanghai 200235,China;2.Department of Chemistry,Shnhai University Couege of Science,Shanghai 200072,China)

    Definite the desulfurization fly ash and demonstrate its resources.The comprehensive utilization of desulfurization fly ash in domestic and overseas is indicated in brief,the talent utilization perspectives are elaborated .

    2009 05 v.15;No.63 [Abstract][OnlineView][Download 209K]

  • Research on ecological security evaluation of the coal cities baesd on BP neural network

    JIN Ying-ji,CAO Jun-xin(School of Economics and Management ,Heilongjiang Institute of Science and Technology,Harbin 150027,China)

    This article build an evaluation index system based on pressure-state-response conceptual model. The level of ecological security of 21 coal cities are evaluated by back propagation (BP) neural network method. It show that (1) as a whole,of the cities is a little low;on partial analysis,the level of ecological security appears an regional character.two cities in Shandong Province,Huaibei in Anhui Province,Jiaozuo in Henan Province,Fushun in Liaoning Province,Tongchuan in Shanxi Province get a higher level than other cities whereas Shanxi Province get a lower level and Heilongjiang Province get a lowest level. (2) since the ecological security evaluation of BP neural network as a new method has a good and effective recognition ability,it can be replied in the citie' ecological security evaluation.

    2009 05 v.15;No.63 [Abstract][OnlineView][Download 745K]

  • Analysis of hydrogeological conditions and prediction of water gush for mining lower coal group in Xinglongzhuang coal Mine

    ZHENG Li-ping(School of Resource and Earth Science,China University of Mining and technology,Xuzhou 221008,China)

    Analyzed the hydrogeological conditions and water filling factors of lower coal group in Xinlongzhuang mine.The influencing degrees that Gray 14 and Ordovician limestone on the exploitation of lower coal group is analysed using the method of water bursting coefficient. Synthetically considering the hydrogeological conditions of coalfield aquifer,introduced the prevention and control measures of water bursting,provide the foundation for controlling the aquifer water for mining lower coal group.

    2009 05 v.15;No.63 [Abstract][OnlineView][Download 96K]



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