- Wang Ting-ting,Ma Qing-yuan,Guo Ji-ping(University of Science and Technology Liaoning,Altitude Vocational School,Anshan 114044,China)
There are some characters in medium-long term city gas load forecasting,such as longer time and uncertain demand increasing.A method is proposed to weakening the original data by using buffer operator before use GM(1,1)model.Simulated calculation results demonstrate that it is an accurate and efficient method.
2007 01 No.47 [Abstract][OnlineView][Download 64K] - XIA Ling-yong(Washing Department of Coal Industry Company,Kailuan Group,Tangshan,063018,China)
This paper introduced the technique reconstruction of kailuan coal washing plant,and the programming,the condition and effect of implement.
2007 01 No.47 [Abstract][OnlineView][Download 19K] - MENG Fan-na1,SHAO Jin-Yuan2,CHEN Xiao-hua2(1 Department of Resources and environment engineering,Heilongjiang Institute of Science and Technology,Harbin 150027,China;2 Shenyang Design and Research Institute of Sino-coal International Engineering Group,Shengyang 110015,China)
In order to lengthen the work piece service life,this article uses the electroless plating the method to cause the coal preparation mechanical surface deposition Ni-P alloy,and carries on the test to its mechanical superficial corrosion attrition performance,the conclusion is because electroless Ni-P alloy to have very high is wear resistance and the corrosion resistance performance,may make the coal preparation machine service time to grow 5～8 times.
2007 01 No.47 [Abstract][OnlineView][Download 289K] - ZHANG Guang-jun1,SUN Xin-an2(1.Tiandi Science Stock Ltd.,Beijing 100013,China 2.Chia Coal XI'an Uesign Engineering Ltd,ShanXi,Xi'an 710054)
The medicament accession auto-control system was developed on the technics requirement of adding medicament to harrow concentrator.We achieved the closed control of adding medicament automatically according to the concentration,flux and overfall turbidity of ore pulp,settled the problems of water pollution,medicament waste,and reclaim of granule coal during the treatment of coal slime water,and assured the efficiency and steady running of harrow concentrator.
2007 01 No.47 [Abstract][OnlineView][Download 29K] - TANG Li-gang1,XIE Guang-yuan1,SHI Chang-sheng2(1.China University of Mining & Technology School of Chemical Engineering and Technology,Xuzhou 221008,China;2.China University of Mining & Technology School of Environment Science and Spatial Informatics,Xuzhou 221008 China)
Cyclonic micro-bubble flotation column Separation System was of obvious dissipative structure characteristics.Based on the dissipative structure theory,Influences of feed,operation and environment on separation efficiency was analyzed.Dynamic equation and dissipative structure model were established,and the model was used in coal processing.The practice results indicated that value of was pivotal to the model of flotation column system.,and logical value of was of significant theoretic guidance significance to coal preparation.
2007 01 No.47 [Abstract][OnlineView][Download 42K] - XU Bo(Security and Environment Engineering Department,Jixi University,Jixi 158100,China)
This paper introduced donghai coal mine adopted multiple dry washing machine to eliminate gangue from run coal in order to settle the merchandise problem since the bad coal quality.And through it this corporation got the better separating effect and the economic effect also be improved.
2007 01 No.47 [Abstract][OnlineView][Download 33K] - ZHANG Jian-ping(Shanxi Provincial Chemical Design Institute,Taiyuan 030024,China)
Our clean-type,heat-recovery coke oven with stamping process which have been improved with large cubage oven and stamping process and heat-recovery coking technologies has changed the laggard coking producing technologies which produced bulk and superfine coke for exports before in China.Possessed with many advantages,such as clean production,fine quality,utilizing reasonably nature resources and fine benefits,it is an advanced coking trend provided with independent intellectual property rights in China.
2007 01 No.47 [Abstract][OnlineView][Download 34K] - WANG Ling,LI Shu-rong,ZHANG Wen-hui(Engineering Department,Beijing Research Institute of Coal Chemistry,CCRI,Beijing 100013,China)
This paper introduced the production criterions and a part of detection criterions,which china active carbon enter EU mart must follow.
2007 01 No.47 [Abstract][OnlineView][Download 27K] - Shen Bo-xiong,Shi Zhan-liang,Guo Bin-bin,Wang Cheng-dong,Wu Chun-fei(College of Environmental Science & Engineering,Nankai University,Tianjin 300071,China)
In this paper,studies have been carried out on the active of CeO2/ACFNand MnOx/ ACFN at low temperature(80~300℃) selective catalytic reduction(SCR) of NO by ammonia.A scanning electron microscope(SEM) was used to obtain qualitative information about the metal(CeO2 or MnOx) distribution on the supported ACFN surface.A X-ray diffractometer(XRD) was used to conduct qualitative analyses of the CeO2 or MnOx in the catalysts.It was demonstrated that the efficiency of de-NO by CeO2/ACFN and MnOx/ ACFN was good.Especially,the efficiency of de-NO by10wt% MnOx/ACFN,more than 85%,was good and stable at low temperature from 80℃ to 300℃,this is a very perfect performance of catalysts in SCR.
2007 01 No.47 [Abstract][OnlineView][Download 172K] - XIONG Yin-wu1,2,DU Ming-hua2,ZHU Shu-quan1,ZHANG Wen-hui2(1.Chemistry and Environment Engineering College,China University of Mining and Technology,Beijing 100083,China;2.Beijing Research Institute of Coal Chemistry,CCRI,Beijing 100013,China)
This paper summarized the basic condition of removing hydrargyrum from flue gas with coal-sorbent nowadays,and emphasized the research actuality of fly ash charcoal and metamorphic active carbon and the character of removing hydrargyrum each.The influence of polar gas on removing hydrargyrum also be mentioned.
2007 01 No.47 [Abstract][OnlineView][Download 47K] - WU Xiao-hua,ZHU Shu-quan,WANG Qi,XIE Wei-wei(China University of Mining & Technology School of Chemical Engineering and Technology,Beijing 100083,China)
The polyethylene glycol-acrylate ester has been synthesized through the esterification of acrylic(AA) and polyethylene glycol(PEO).Test results of the properties of CWS including stability and slurry ability show that the highest concentration is 68% for shuanyashan coal when used additive 0.5%,d50 30.86μm.
2007 01 No.47 [Abstract][OnlineView][Download 105K] - LI Hua1,ZHANG Shi-hua2,BAN Chun-lan1(1.Chemical Engineering College,Zhengzhou University,Zhengzhou 450002,China;2.Mengzhou Chemical Plant,Luoyang 471100)
Based on selected 2 micdesulfurization strains from soil samples polluted by flue gas from the heat and power plant in Zhengzhou city,in order to find out their rules of growth and multiplication,the growth curves for 5-1-b、5-3-b strains have been determined with 721-spectrophotometer on the condition of constant temperature.It can be shown from their own growth curve that the strains enter into logarithm period after culturing 8 hours,and the maximum OD was determined after 40 hours or so,they have 4 growth periods,i.e adjustment period,logarithm period,stabilization period and death period.And the physiological and biochemical characteristics for micdesulfurization strains have also been experimented;the determined result of growth curves and morphological character can be as a reference of selecting industrialization condition.
2007 01 No.47 [Abstract][OnlineView][Download 26K] - WANG Jun1,ZHANG Chuan-ju2,ZHANG Chun-lan3(1.The Thermal Engineering Department of Shandong Architecture University,Jina 250014,China;2.Energy and Power Engineering Department of Shandong University,Jinan 250061,China;3.Ji'nan Suzuki Motorcycle Co.Ltd,Jinan 250101,China)
Industrial boiler is wildly used as an important thermal drive facility,but it is a big energy waste since its lower running efficiency,the way promotes the efficiency is regulating working condition as well as technique reconstruction.The factors influenced the running of 1.4 MW catenulate furnace outlet were analyzed and ameliorated,and made a better efficiency of energy conservation.
2007 01 No.47 [Abstract][OnlineView][Download 25K] - SHE Hong1,FENG Jie2,3,ZHAO Hui-min4(1.Hebei Insitute of Vocational Technique,Shijiazhuang 050091,China;2.Beijing University of Science and Technology,Beijing 100083,China;3.College of Material Science and Engineering,Hebei University of Science and Technology,Shijiazhuang 050054,China;4.The third steed-morking plant of hangang Co.Ltd,Handan 056015,China)
The suitable oxygen-enrichment rate for maintaining appropriate RAFT and maximizing the benefit Of oxygen-enrichment has been discussed in this paper.Some concepts including calculating formulae such as the critical coal-to-coke replacement ratio,the benefit-rising critical oxygen-enrichment rate and the critical oxygen price for oxygen-enrichment has been put forward.
2007 01 No.47 [Abstract][OnlineView][Download 33K] - KONG Wei-hui,LIU Wen-zhong,CHEN Ping(Department of Resources and Environmental Engineering,Anhui University of Science and Technology,Huainan 232001,China.)
In this paper,advancement on the migration,transformation and release control of Chromium in coal combustion process is presented from several important aspects.The contents of Chromium in coal are introduced.The mechanisms of Chromium migration and transformation during combustion are illustrated.Finally,the current control technology of Chromium release is briefly introduced.Research needs are identified and potentially promising research topics on Chromium release are discussed.
2007 01 No.47 [Abstract][OnlineView][Download 31K] - MIAO Huan-yu1,JIANG You-xin1,CHANG Jie2(1.Department of Material Science and Engineering,Southwest University of Science and Technology,Mianyang 621010,China;2.Calciner,Chengdu 610021,China)
Compared with soft coal,anthracite is not used for froducing cement in rotary kiln or in precalciner as its higher ignition temperature and more time to burn out.In order to widen its selective range of coals in cement kiln.,the article studies the anthracite used in precalciner.CuO,Fe2O3,MnO2 as the catalyst were selected and discussed the influence of different kinds of catalysts and their content on the ignition temperature of coal which studied by combustion analysis,TG-DTG.The result indicated that: CuO,Fe2O3,KMnO4,MnO2 added in the anthracite may reduce the ignition temperature of the anthracite in varying degree.The XRD analysis of combustion product showed that the catalyses which were used in the tests play the major role in the combustion.The catalysed take part in the chemical reactions of the burning.The catalysts have had the catalysed combustion with the carbon in the coal during the firing process which caused reducing of the ignition temperature of anthracite.
2007 01 No.47 [Abstract][OnlineView][Download 62K] - WANG Feng-yin,CHONG Li-qin,TAO Zhong-wei,XU Zhi-qiang,ZHANG Rong-zeng(China University of Mining and Technology,D11 Xueyuan Road Beijing,100083)
This paper analyzed ash composition of Coal-Black liquor Mixture(CBM).The thermodynamical and environmental tests were done on industrial boilers burning common Coal-Water Mixture(CWM) and CBM.The theoretical analysis and testing results both prove that CBM has significant desulphurizing effects.The environmental order can be satisfied without adding any other desulphurizing measures.It is an economic and high efficient way to treat with the SO2 pollution of burning coal.
2007 01 No.47 [Abstract][OnlineView][Download 18K] - GONG Zhi-jian1,TIAN Yuan-yu1,LI Wen-hua2,XU Zhen-gang2(1.Chemistry and Environment Engineering College,Shandong Science and Technology University,Qingdao 266510,China;2.Beijing Research Institute of Coal Chemistry,CCRI,Beijing 100013,China)
The author made many FeOOH samples adopting different alkaline proportion(n=1,0.8),different aeration capacity(1.25L/min and 1.5L/min)and different oxidation measures under the system of FeCl2-NH4OH.The TEM、XRD and TG token of samples indicated that reducing the oxidation speed can easily produce the mixture of Fe3O4 or γ-FeOOH、α-FeOOH and Fe3O4,which are of lower activation of desulfurzation,and increasing air flux or adding oxidizer to quicken oxidation speed can produce FeOOH with higher activation of desulfurization.
2007 01 No.47 [Abstract][OnlineView][Download 271K] - ZENG Ling-da,ZHOU Huai-chun,FU Pei-fang,YAO Bin(National Laboratory of Coal Combustion,Huazhong University of Science & Technology,Wuhan 430074,China)
DeNOx treatment of the flue gas in coal-fired Houshi power plants may greatly reduce NOx emission,and obviously improve the environment.The Selected Catalytic Reduction(SCR) DeNOx technology is a technology to remove the NOx in the flue gas after the fuel is burned.This paper briefs the basic principle,system configuration of SCR and the impacts of newly-added SCR equipment on the design and material selection of the relevant auxiliary equipment,such as air-preheaters and induced draft fans,etc.,and puts forward the corresponding suggestions.
2007 01 No.47 [Abstract][OnlineView][Download 113K] - YANG Xiao-ling(Xianyang Normal College,Xianyang 712000,China)
This paper summarized the actuality and evolvement of research and application of desulfurizer during flue gas desulfuzation,and discussed merits and defects of different kinds of desulfurizers.It indicated that the main technique of flue gas desulfurization in china is calcium way with calcic desulfurizer,and the most potential one is using ammonia as desulfurizer.Controlled sulfur pollution effectively and rejected secondary pollution,and byproduct resourcation are the important aspects of researching desulfurize technique for the future.
2007 01 No.47 [Abstract][OnlineView][Download 24K] - ZHU Shao-wen(Coal WashingPlant of Jining Number Two Coal Mine,Yankuang Group,Jining,272072,China)
This paper introduced the way of eliminating impurities of coal production during shipment and before consignation.Though the careful management of analysis and research,technological innovation,process control,supervision,and application of statistics technique,we adopted efficient way with pertinence to reduce the content of production impurities.
2007 01 No.47 [Abstract][OnlineView][Download 37K] - ZHOU Xiao-lv,ZHANG Ping,CHEN Wen,TONG Wei,ZHU Lin,YE Ying(Department of Environment Engineering,Shanghai University of Electric Power,Shanghai 200090)
To Found a method of low prices and good results to transform the mine wastewater into water resources in Shen-mu mine area,the author studied the coal fly ash coming from Da-liuta's own place to treat Da-liuta coal mine wastewater,by experiments and contrasts the method of mixture had been determined,and some important parameters have been got.The results show that the appropriate amount is about 1g/L,the mixture stir time is 20~30 minutes,the stir speed is 50turn/min,the sediment time is 40~60 minutes.
2007 01 No.47 [Abstract][OnlineView][Download 41K] - CHEN Qi-zhong,WANG Yang(Maoming CWM of Clean Energy Ltd.,Maoming 525011,China)
According to the analysis of contaminative source of CWM production,and the vice of sewage purification in building workshop now,we put forward a new train of thoughts of sewage reclaim,so the cleanly production and water saving were realized.It also provided experience for sewage reclaim and alteration and sewage purification.
2007 01 No.47 [Abstract][OnlineView][Download 30K] - WANG Long-qin ZHANG Ming-qing ZHOU Xi-de ZHOU Sheng-li(Mining Engineering Department,Cai Jiaguan Campus,Guizhou University,Gui yang 550003,China))
In this paper,various water pollution phenomena of coal mine are discussed first,then a series of controlling techniques are presented to protect water resource from pollution.
2007 01 No.47 [Abstract][OnlineView][Download 36K] - GONG Quan-hong(Design and Research Ltd.,Datong Coal Mine Industry Group,Datong,037003,China)
Coal mine corporation added their profits and ameliorate environment conditions through implementing the clean coal technology.And it also made harmonious development of economic growth and environment protection.
2007 01 No.47 [Abstract][OnlineView][Download 22K] - XU Hu(Design and Research Ltd.,Datong Coal Mine Industry Group,Datong,037003,China)
Through introduced the technology and typical process of clean coal industry at advanced country in the world,expound in our country the construction of clean energy source base、 present situation and development of clean coal technology、 revolutionary of coal transport、construction of coal ash pellet production line integrated utilizing of coal waste role,demonstrate the prospects in our country for coal industry.
2007 01 No.47 [Abstract][OnlineView][Download 28K] 下载本期数据