- XIAO Bin 1, ZHANG A-ling 1, CHEN Gui-feng 2(1. Nuclear and New Energy Technology Institute, Qinghua University. Beijing 100084, China; 2. Coal Industry Clean Coal Engineering Technology Research Center. Beijing 100013, China)
Based on the methodology of life cycle inventory, the environmental impacts of seven clean coal-fired power generation technologies are evaluated and material consumption and environmental emissions is provided quantitatively. The results support the decision-making theory of the scheme and policy of the development of clean coal-fired power generation technology.
2005 02 [Abstract][OnlineView][Download 127k] - ZHANG Qing-lin(Yantai Energy Inspect Monitoring Center, Yantai 264001,China)
The measure suggestions were put forward such as energy provided quality, energy administration, saving energy technology development and technique transformation based on the status analysis of coal fired industrial operation efficiency, existence problems and cause in China, and use the experience of developed countries for reference and successful case in China.
2005 02 [Abstract][OnlineView][Download 145k] - WANG Dong-shen, LI Jie(Project Preparatory Department, Shandong Yankuan Group. Zhoucheng 273500, China)
The main technique route of the substitution coal for petroleum and transportation used oil and chemical products competition ability was discussed. To develop coal chemical engineering rational route in the coal enterprise is to produce methanol and alkenes.
2005 02 [Abstract][OnlineView][Download 116k] - WANG Cai-yun, MEI Guo-min, YANG Jian-guo(School of Chemical Engineering and Technology, China University of Mining and Technology. Xuzhou 221008, China)
The effect of two common coal sample preparation methods on the contact angle based on the coal wettability quantitative measurement and them advantage and disadvantage was discussed in detail. Grinding coal sample result is better than the forming fine coal during contact angle measurement.
2005 02 [Abstract][OnlineView][Download 63k] - LI Ping,FU Xiao-heng,ZHOU Jian-jun,LI Xiang-li(Chemistry and Environment Engineering College, China University of Mining and Technology, Beijing 100083, China)
The reserves and utilization situation of coking coal in China were analyzed. Middlings of Fangezhuang Coal Preparation Plant that is 1 40 from to 1 60 density grade is used as experiment test samples for exploration the utilization good quality coal resources of China. Float and sink test are adopted by using the ZnCl 2 as heavy liquid and classification grade was conducted according to the density. And then various density grade coal samples putting into grinding and treatment by using the flocculation-floatation process for recovery the low ash cleaned coal. The conditions of separation the low ash cleaned coal were approached from Fangezhuang middlings. After classification, the total ash is under 8 14% at the same separation density condition.
2005 02 [Abstract][OnlineView][Download 102k] - WANG Bin, LIU Wen-yu, CHEN Ming-bo, WANG Li-bin(Beijing Research Institute of Coal Chemistry, CCRI. Beijing 100013, China)
The feasibility of thermal state continuative feeding coking process with coal liquefaction residue was discussed through experiment study. It was provided as a technology basis for comprehensive utilization liquefaction residue and accomplishment the process linking up between the residue coking and direct liquefaction.
2005 02 [Abstract][OnlineView][Download 204k] - LIANG Cai-qin, WANG Xiao-ming, MA Zhi-guo, CUI Jun-qing(Gushuyuan Coal Mine, Jincheng Coal Industry Group. Jincheng 048000, China)
A systematic analysis was conducted that is about the effect of coal size, stirring time, forming pressure, water adding amount, binder selection and adding amount on the briquette production through practice operation. The optimum process parameters were found that is suitable for GDC1147/180 briquette machine.
2005 02 [Abstract][OnlineView][Download 80k] - YU Xiao-dong, ZHANG Shuang-quan, TANG Zhi-hong, Liang Yong-ping (School of Chemical Engineering and Technology, CUMT, Xuzhou, Jiangsu 221008,China)
Different ratio of Datong bituminous coal and Taixi anthracite were used as raw material, and the additive are Mg(OH) 2·4MgCO 3·5H 2O and NH 4NO 3. Activated carbons were prepared at different carbonization temperatures and activation temperatures. The result is shown that, Abundant mesoporos activated carbons could be produced at following conditions such as high ratio of Datong bituminous coal, best ratio of Mg(OH) 2·4MgCO 3·5H 2O and NH 4NO 3 at 1 ∶ 2. and optimum carbonization temperature at 600℃.
2005 02 [Abstract][OnlineView][Download 99k] - LI Rui-yang, Dong li(School of Energy Science & Engineering, Harbin Institute of Technology. Haerbin 150001, China)
This paper described the characteristic of air dynamic field distribution situation in a six corners tangentially boiler after the retrofit by using the air gradation combustion technology. The result is shown that, it can be concluded that the air gradation combustion technology is useful to ensure the lignite steady combustion under lower load, control the emission of NO x and reduce the slagging phenomenon in a six corners tangentially boiler.
2005 02 [Abstract][OnlineView][Download 248k] - ZHENG Yi-rong, FU Cui-yan, FENG Jie, ZHANG Su-qing(Hebei Institute of Vocational Technique, Shijiazhuang 050091, China)
The relationship of combustion efficiency and pulverization coal size distribution by using the different kinds coal is studied. Result is shown that, a best value of bituminous size distribution was existed for gained the high coal combustion efficiency. Also the best value of coal size distribution was existed for bituminous and anthracite if the coal grinding consumption was accounted. Recommend value is 60% to 80% pulverized coal size below -0 074 mm based on this study. The relationship of coal combustion efficiency and reflectivity of vitrinite was also studied.
2005 02 [Abstract][OnlineView][Download 92k] -
2005 02 [Abstract][OnlineView][Download 20k] - JI Xu-guo, BU Xue-peng(Beijing Research Institute of Coal Chemistry, CCRI. Beijing 100013, China)
It has been studied that adaptability of pressured gasification of long flame coal in the pressurized fixed bed gasifier (ID 100mm) Due to the has strong caking a stirrer was installed when it carried pressured gasification. Study indicated that it fitted for fixed bed pressured gasification process after installed the stirrer.
2005 02 [Abstract][OnlineView][Download 95k] - LI Wen-xing, ZHENG Yi-rong, FENG Jie, LI Jian-suo(Hebei Institute of Vocational Technique, Shijiazhuang 050091, China)
Blowing coal process has been used in the blast furnace in Shijiazhuang Steel Work since Sept. 2001 and the rate of blowing coal reached 78 Kg/t iron in 2003. Suitable coal kinds have been selected on the base of further innovating and perfecting the former blowing system for to increase the blowing coal amount and to decrease the cost of pig iron. The fuel quality was improved. The experiment of blowing bituminous and anthracite blending was conducted successfully on Mar. 4 2004. Blending rate of bituminous keeps above 75% steadily. The aim of saving energy, decreasing consumption and increasing efficiency has been reached.
2005 02 [Abstract][OnlineView][Download 73k] - LI Shu-rong 1, WANG Ling 1, ZHANG Wen-hui 1, LIU Ting-yue 2(1 Beijing Research Institute of Coal Chemistry, CCRI. Beijing 100013, China; 2.Beijing Clothes College Beijing 100029, China)
Comparison and analysis were made for existence several activated carbon iodine adsorption value measurement methods based on the measurement result. Advantage and disadvantage of this method were discussed. A suggestion was put forward based on the existence problems in GB/T7702 7-1977 nation standard.
2005 02 [Abstract][OnlineView][Download 71k] -
2005 02 [Abstract][OnlineView][Download 24k] - ZHANG Dong-chen(Anhui University of Science and Technology, Huainan 232001, China)
The meaning, technical classification and method of coal desulfurization in China were analyzed in this paper based on the distribution characters of sulfur content in coal and coal burning environment pollution rigorous situations. The research and progress of coal microorganism desulfurization in domestic and abroad were introduced. With regard to the microorganism variety and desulfurization methods were analyzed and evaluated also.
2005 02 [Abstract][OnlineView][Download 148k] - LIU Meng 1, JIN Yan-hua 1, NING Cheng-hao 2(1.Economic Management College, Beijing Chemical University. Beijing 100029, China; 2.Coal Industry Clean Coal Engineering Technology Research Center. Beijing 100013, China)
The development of coal bed methane clean development mechanism (CDM) in China possesses a great potential. However up to now the relative baseline methodology has not been approved by EB which becomes a bottleneck for coal bed methane CDM project development due to coal bed methane extraction situation at different coalmine is various and complex and the CDM is a newly emerging things. The main content of two applied baseline methodologies of coal bed methane comprehensive utilization CDM project was introduced in this paper, and its weakness was analyzed. At the same time, the suggestions were provided. It is expected that, this paper could give some reference to the later researches.
2005 02 [Abstract][OnlineView][Download 99k]
2005 02 [Abstract][OnlineView][Download 31k] - HUANG Guang-xu, CHEN Lun-jian, SHEN Yi-qing(Henan Polytechnic University,Jiaozuo 454000,China )
The comprehensive utilization of slime in China was elaborated, and the physical and chemical characteristics of fly ash and coal slime ash after combustion were analyzed and compared. The results indicated that many comprehensive utilization ways of the fly ash can be used as reference for those of the slime ash. At last, a waste-free comprehensive utilization idea of the slime, which accords with the requirements of circular economy is put forward.
2005 02 [Abstract][OnlineView][Download 128k] - LIN Qiao-yu(Xinjiang Coalfield Geology Bureau. Wulumuqi 830091, China)
A few of influence factors were introduced that is about the accuracy of SO 3 content in coal ash measurement by using CLS-1 type 2 coulometry.
2005 02 [Abstract][OnlineView][Download 66k] -
2005 02 [Abstract][OnlineView][Download 20k] - LUO Wei-guo, LUO Ning(Shandong Huaju Energy Shared Co Ltd. Zoucheng 273500,China)
The essentials and role for enhancing the enterprise administration level of establishment administration system were discussed through establishment of quality, environment and job-safety health system in Shandong Huaju Energy Shared Co. Ltd. It is put forward that, the continued improving of system operation is needed.
2005 02 [Abstract][OnlineView][Download 84k] -
2005 02 [Abstract][OnlineView][Download 19k] - ZHAO Xue-dao(Xinjiang Coalfield Geology Bureau. Wulumuqi 830091, China)
The application of EXCEL 2000 in coal sieve float-and-sink analysis for various worktables manufacture is introduced. Two examples were provided for explanation.
2005 02 [Abstract][OnlineView][Download 64k] -
2005 02 [Abstract][OnlineView][Download 59k] - HUANG Yue-ping, MENG Qiu-li(First Coal Mine, Pingdingshan Coal Industry Group. Pingdingshan 467000, China)
The harmful effects of building material on housing environment and the important to develop the green building materials were discussed. A suggestion was put forward for popularization the green building material.
2005 02 [Abstract][OnlineView][Download 38k] -
2005 02 [Abstract][OnlineView][Download 20k] - WANG Zhi-rong(Geological hazards institute, Gan su Academy of sciences, Lanzhou 730000,China)
Red-soft-mudstone layer landslides of Jurassic and Cretaceous and Tertiary are distributed in north china widely. It is the basic characteristic of red-soft-mudstone layer with weak anti-weathering capability, feeble rock mass strength, rather bad engineering geological property, and it is very sensitive to water generally, landslide hazards in this area is very serious. Geological environmental conditions of the red-mudstone layer landslides are the key factors for forming landslides, rock mass strength characteristics determined the mechanical and deforming mechanism of landslides. The traits and moving characteristics of red-mudstone layer landslide varied with different conditions of deformation and failure. Based on the study of rock mass strength in different failing conditions and shear strength of rock layer surface, this article analyzed the mechanisms of creeping deformation and slip plane forming systemically, the basic characteristic of the red-soft-mudstone layer landslide was given after the studies and statistic analysis of typical red-soft-mudstone layer landslide examples.
2005 02 [Abstract][OnlineView][Download 98k] 下载本期数据