- Yu Ertie (Liaoning Coal Industry Administration)
This paper looks back on the coal preparation business in the past half century and calculates its developing prospect in the continuously development strategy of coal industry during the earlier of 21 century. The development route of coal preparation business at the market economical circumstance was also approached.
1998 03 [Abstract][OnlineView][Download 39k] - Xu Zhengang Gong Yuehua (China Coal Research Institute) Michael X Jiang (Beijing Office, NOELL-KRC Energie und Umwelttechnik GmbH, BRD)
GSP entrained flow gasification process is one of the advanced large scale gasification technologies of new generation, which is developed by the German Fuel Institute of the former German Democratic Republic The dry powder of raw material is fed into the reaction chamber from the top of the gasifier, oxygen is used as oxidant, and the molten slag formed in the high temperature reaction is discharged at the bottomof the gasifier In this paper, the application prospects of GSP technology in China is investigated after the presentation of the development course, the configuration of the gasifier, flow scheme and the technical characteristics of the technology
1998 03 [Abstract][OnlineView][Download 55k] - Dou Qingfeng (Coal Science & Technology Information Institute) Huang Shengchu (Information Center of Coalbed Methane)
ADB have supported two technical assistance items for developing the coalbed methane in China. The “Investigation of Coalbed Methane Development" as a first technical assistance item had been completed and the second item which including the “A Feasibility Study of Coalbed Methane Demonstration at NO. 5 Coal Mine, Yangquan" and “A Prefeasibility Study of Coalbed Methane Demonstration at Hanzhuang Coal Field - Shouyang, Yangquan" will be operated. This paper introduces the status of coalbed methane development and investigation conclusion in the main coal mine regions that was made by the expert group of ADB and the main content in the second technical assistance item is also introduced.
1998 03 [Abstract][OnlineView][Download 23k] - Chen Huaizhen (Beijing Research Institute of Coal Chemistry) Wu Baojun (Hefei Research Institute of Coal)
This paper introduces the coal resource, character and cleaning use route of main coal basin in Anhui province. It can be provided as a reference to the main coal consumption enterprises located at the northern China.
1998 03 [Abstract][OnlineView][Download 34k] - Yu Jie Wu Lixin Du Minghua ( Clean Coal Engineering and Research Centre of Coal lndustry )
Steam coal cleaning is the main technical route of improving the coal quality and reducing the harmful materials The basic conditions for steam coal preparation plants and coal consumers to obtain rational economic benefits is be analyzed in the paper The influence factors of coal conservation,reduced emissions,penalty on pollutant discharge are also discussed here The conditions of economic reasonableness for developing steam coal cleaning are investigated
1998 03 [Abstract][OnlineView][Download 42k] - Zhao Zhijun (Information Centre, China Coal Research Institute) Wang Fan (Beijing Municipal Institute of Labor Protection)
This paper is to provide a new way solving the concrete problems that were existed in the industrial commercialized flotation column through study on the bubble producer of new flotation column. Furthermore it can provide a reliable theory for the study on the static mixer.
1998 03 [Abstract][OnlineView][Download 24k] - Cai Changfeng (Coal Preparation Research Institute, Thangshan Research Institute, CCRI)
This paper introduces an exploration study on the coal petrographical constituent separation technique - superfine medium heavy medium cyclone for removing the fusinite based on the study on the dissociation character of coal petrography constituent. The objective is to improve the liquefaction character of low coalifaction coal.
1998 03 [Abstract][OnlineView][Download 45k] - Fang Quanguo Li Yinghua (Beijing Research Institute of Coal Chemistry,China Coal Research Institute)
The equipment for determination of industrial briquette compressive strength must be material testing machine, which degree of accuracy or precision is fine, and technical condition is up to the demands The testing result of many kind of briquitte from these machine is not marked different, the precision of the method in same laboratory is about 10%
1998 03 [Abstract][OnlineView][Download 25k] - Sun Gang (Resources Engineering Department, Beijing Science and Technology University ) Sun Wei Yue Yiming Zhang Yujin (Xuzhou Screen Machinery Manufacture Co.)
The screening probability was affected by many factors that was described in the factor analysis during to establish the mathematical model of projectile screen. Particles' matter through screen is a complex process. The geometry probability of particles' matter through screen was only shown that was happened in a twinkling when the particles contact with screen. Before it happens the other factors also effect on the particles' movement. The movement and through screen probability pattern during screening process was considered when to establish the mathematical model of projectile screen.
1998 03 [Abstract][OnlineView][Download 39k] - Long Yonghua (Shanghai Coking and Chemical Corporation Limited) Gao Jinsheng (East China University of Science and Technology)
This paper introduces a survey of the study of the effect of the mineral mattder of coal on its gasifying process It shows that the coal ash fusibility and its viscosity-temperature character are the decisive factors when choosing the way of discharging ash-slagging of coal gasifying process The fusion temperatures and the viscosity of coal ash are not only related to the chemical composition of ash but also to its mineral composition, and they are all correlated well with liquidus temperatures for the phase diagram, which provides the theoritical basis for controlling the ash-fusion temperatures and enlarging the limit of choosing gasifying process
1998 03 [Abstract][OnlineView][Download 39k] - Wang Li Chen Peng Jin Jialu (Beijing Research Institute of Coal Chemistry,CCRI )
On basis of summarizing the research status concerning moderate coal liquefaction and co-processing of coal with organic wastes,it was pointed out that direct coal liquefaction should be developed towards moderate coal hydroliquefaction,the coliquefaction of coal with waste plastics has provided a new means of utilizing these organic wastes and coal as non-fuels
1998 03 [Abstract][OnlineView][Download 33k]
1998 03 [Abstract][OnlineView][Download 19k] - Zheng Hang Wang Shanyong Zhang Xuehong (Department of Energy Resource & Engineering, Zhejiang University)
An experimental study on desulfurizaton of combustion with industrial briquette which is briquetting at front of industrial boiler was conducted. Combustion desulfurization feature of briquette and a number of effect factors of desulfurization efficiency through theory analysis and practice are discussed in this paper.
1998 03 [Abstract][OnlineView][Download 37k] - Fu Changqiang He Rong Yao Jinxing Jin Maolu Xu Xiuqing ( Department of Thermal Engineering , Tsinghua University )
This paper introduces a new kind of the research on flue gas desulfurization witha suspending - bed reactor . A suspending-bed reactor,which is similar to fluidized bed ystem,is used for flue gas desulfurization. This reactor is simple. Thus,the initial invest ment will be small in industrial ap- plications in the future. the experiment result show that this system has low flow resistance,low operating cost and high desulfurization efficiency. It not only suitable for new large scale and medium / small sized boilers, but also ideal for retrofitting existing plants, It is therefore most fit for China's conditions, and that has extensive evolution and application prospect.
1998 03 [Abstract][OnlineView][Download 29k] - Xu Guicai (Ruqigou Coal Mine, Ningxia)
Ruqigou coal mine is located at a lack water supply region and very cool in winter. Therefore the hot blast stove system (WFL 1.4 - 150/25 - W III Type) for space heating was developed and used based on the combustion character of fine anthracite. This system feature is low capital, saving electricity and without water used, so it possess a fine economic benefit .
1998 03 [Abstract][OnlineView][Download 16k]
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