- Dong Jin-yue(Jinan Design And Research Institute of Coal Industry,Jinan 250031,China)
The coal resources are non-regenerative energy source. It is the important substantial foundation for the national economy. The object of coal cleaning production is that to develop and use the valuable coal resources enough and effectively, improve the resources output coefficient and carry out circular economy mode. Based on expounding the cleaning mining technique and pollution control technique in the coal production, this paper probes into the issues about the cleaning production evaluating contents of coal underground mining and establishing the system of evaluation.
2003 03 [Abstract][OnlineView][Download 40k] - ZHANG Yue-shou(Coal Preparation Plant, Fenkuang Group,Jiexiu 032000,China)
The floatation test of slime by using 5 forms frothing agent was conducted in Jiexiu Coal Preparation Plant. The result is shown that, cleaned coal yield is about 80% when cleaned coal ash content is under 90% ～95% condition through contrast test and primary optimum test. The frothing agent consumption is suggested that: secondary octanol 30 g/t, kerosene 600 g/t or GF oil 100 /t, kerosene 1000 g/t.
2003 03 [Abstract][OnlineView][Download 25k] - MA Yu-feng1,LI Jian-qiang2,WAN Qi-ke1,JIANG Xiu-min3, 4(1Shengli Power Plant Dongying 257087,China; 2Industry Engineering Department, Dongying Vocational Institute Dongying 257091,China; 3Thermal and Energy Engineering Institute, Shanghai Communication University Shanghai 200240,China)
The status of coal water mixture atomization combustion technology, application direction and existence problem are analyzed. Fluidization-suspension high efficiency combustion new technology and its feature are introduced. The significance and application foreground of coal water mixture fluidization-suspension combustion technology are analyzed based on the practice application situation.
2003 03 [Abstract][OnlineView][Download 49k] - ZHANG Tong-xiang,QIAN Jian-qing, REN You-zhong, YU Lian-haication, Institute for Thermal Power Engineering,Zhejiang University,Hangzhou 310027,China)
The ignition character of briquette is one of the key factor which having direct influence on its combustion. In order to explore the ignition properties of briquette, five types of coal were tested on the test installation. Based on the results, the influences of volatile, captured sulfur additives and shaped pressure were analyzed, and compared with the ignition of coal powder tested on thermobalance. The influences of usual factor on the ignition of briquette and coal powder were also analyzed.
2003 03 [Abstract][OnlineView][Download 31k] - LIU Jian-wen1,SHAN Zhong-jian1,ZHANG Xiao-feng2,ZHANG De-wei2(1China University of Mining & Technology (Beijing), Beijing 100083,China; 2Hunan Tiantai Energy Co. Ltd.,Zhuzho 412005,China)
The Coal Black Liquor Mixture (CBLM) Technology, BL Membrane Treatment Technology, Integrated Membrane Technology (IMT) are introduced in this paper. According to integrating of science and technology being one of the world science and technology innovation, integrated technology between membrane separation and other mature technology or membrane separations is an important tendency for settling present period industry problem. The integration of CBLM and IMT was put forward, which is suited for Chinese condition. Based on the waste treatment as a resource concept, integrated high-tech membrane separation technology and CWM etc. clean coal technology, to synthesize harnessing SO2 pollution due to burning high-sulfur coal, when treating BL,looked as a kind of resources, it is innovation integrated technology that technology and economy all will be feasibility.
2003 03 [Abstract][OnlineView][Download 48k] - XIAO Nai-you,YAO En-ti,WANG Wen-liang(The National Center of Coal and Coke Quality Supervision and Inspection,Beijing 100013,China)
The influence factors of civil honeycomb briquette dynamic state combustion were studied such as stove condition, ambience temperature etc, and SO2 emission and captured sulfur. The performance evaluation index of total water evaporation and thermal efficiency is described. The result is shown that, stove condition and ambience temperature affected directly the total water evaporation value and the thermal efficiency. The relationship between thermal efficiency and SO2 emission is a direct proportion for same kind honeycomb briquette. With regard to the other auxiliary performance evaluation index are also described.
2003 03 [Abstract][OnlineView][Download 54k] - FU Xi,ZHANG Hong-bo (1Fuqiang Coal Preparation Plant, Qitaihe 154600,China; 2Heilongjiang Institute of Science and Technology. Jixi 158105,China)
the coupling agent of eater titanate treated the rubber filler was gained by using the pulverization fly ash that surface. Subsidiary strengthen effect of the filler on the rubber was measured. The result is shown that the filler has a good quality and it can be in place of calcium carbonate, magnesium carbonate or pottery clay and partially of Carbon black for the same subsidiary strengthen effect. Therefore it can reduce the use level of carbon black and cost of rubber.
2003 03 [Abstract][OnlineView][Download 30k] - FU Wen-an(Zaizhuang Coal Mining Group Co.,Zaozhuang 277000,China )
Some of the problems have meted such as to construct coal water mixture plant in coalmine or users centralization area and economic rational supplement scope of coal water mixture sale during market development practice in Zaizhuang Coal Mining Group Co. With regard to the opinions and suggestions in the next development stage of coal water mixture are put forward.
2003 03 [Abstract][OnlineView][Download 28k] - Ji Xu-guo,Bu Xue-peng,Wang Peng(Coal Chemical and Technology Research Branch Institute, China Coal Research Institute, Beijing 100013,China)
Lignite gasification used in pressured fixed bed gasifier is an efficient measures for upgrade its use value. Coal qualities analysis via seven kinds of lignite in China and pressured gasification in different diametric fixed bed gasifier are conducted and obtained different gasification technology and economy indexes. It can be summarized commonly rule of lignite gasification used in pressured fixed bed gasifier.
2003 03 [Abstract][OnlineView][Download 42k] - YANG Yi-bo, SUN Li-jun(Zhengzhou Electric Power College, Zhenhzhou, Henan 450004,China)
The technology of large type homemade CFBB has become the key part in CFBB study. There are still some problems in this process, such as it can not reach to the normal steam flow in operating, lower main steam parameters, high carbon content in ash, slag blockage. In this paper, these problems have been tested, analyzed and discussed.
2003 03 [Abstract][OnlineView][Download 33k] - SHEN Hong-qing,LIANG Li-jun(Beijing Huayu Engineering Co. Ltd,Pingdingshah 467002,China)
In common use structure and advantages of the assembly transformer substation in electric supply and distribution at coal water mixture plant are introduced. The allocation assembly transformer substation principle and control signal scheme base on the demand of plant are described. At the same time it has some of the confines as comparison with the conventional electric distribution system.
2003 03 [Abstract][OnlineView][Download 15k] - WANG Bing-dong(Thermal Power Plant, Yongcheng Coal and Electricity Group. Yongcheng 476600,China)
The application of new type coal slime pumping system on the Coal Slime Circulating Fluidized Bed Boiler was introduced. Equipments disposition, principle of work, functional character and operation control are discussed in detail. The operation result shown that, the system possesses many advantages such as high automatic control, good performance, simple and convenient operation, environment friendly. It has a good application and dissemination.
2003 03 [Abstract][OnlineView][Download 32k] - Tu Hua,Ji Yang-rui,Jiang Ying,Chen Wen-min(Coal Chemical and Technology Research Branch Institute, China Coal Research Institute,Beijing 100013,China)
The relation between volatile matter and hydrogen content in Chinese anthracite is studied in detail. And the regressive equations that to calculate hydrogen content in Chinese anthracite is obtained by using multivariate nonlinear regression.
2003 03 [Abstract][OnlineView][Download 45k] - PI Zhong-yuan1,LI Ying-hua1,SHI Hong-xia2 , WANG Qi-bao2(1Nation Coal Quality Supervise and Inspection Center, Beijing 100013,China; 2Beijing School, China University of Mining & Technology, Beijing 100083,China)
The application of hydrogen compound generation technology in As, Se, Sb, Bi, Ga, Ge, Sn, Pb, Te, and Hg detection is introduced based on the trace element content in coal and detection methods at present. Hydrogen compound generation technology principle, advantage and disadvantage, generation method and application method are discussed.
2003 03 [Abstract][OnlineView][Download 46k] - ZHOU Hong-cang,JIN Bao-sheng,ZHONG Zhao-pinglogy of Ministry of Education, Thermoenergy Engineering Research Institute,Southeast University,Nanjing 210096 ,China)
To establish a method for the simultaneous determination of 5 compositions of coal gas from fluidized bed partial gasification by gas chromatography. Coal gas samplers in gas sampling bag were injected into gas chromatography by a six-port valve, separated by repacked column TDX-01 and determined by thermal conductivity detector (TCD). In determination range of the experiments, the correlation coefficients are all above 0.999 and the average relative standard deviation (RSD) is 1.538%. The method of gas chromatography is rapid, economical, accurate and suitable for determine the components of coal gas from fluidized bed partial gasification of coal.
2003 03 [Abstract][OnlineView][Download 38k] - FAN Xi-jie,XU Xing-sheng,XIAO Shang-hong(Xinwen Mining Group Huafeng Coal Mine, Taian 271413,China)
Huafeng Coal Mine used up waste residue. Wastewater and waste gas progressively, dispelled scrap materials in the process of production, through carrying out cleaning production and cleaning utilization. Utilization ratio of resources is raised, pollutant emission is reduced. The ecological system of coal mine is in favorable circulating condition of continued development.
2003 03 [Abstract][OnlineView][Download 19k] 下载本期数据