Shougang Mining Company

Tangshan, China

Shougang Mining Company

Tangshan, China
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Liu L.,Tsinghua National Laboratory for Information Sciences and Technology | Li Y.,Tsinghua National Laboratory for Information Sciences and Technology | Zhang Z.,Tsinghua National Laboratory for Information Sciences and Technology | Feng Z.,Tsinghua National Laboratory for Information Sciences and Technology | And 2 more authors.
IEEE Antennas and Propagation Society, AP-S International Symposium (Digest) | Year: 2013

Experiment on channel propagation characteristic in underground iron mine was reported in this paper. Our work was carried out by CC1110-based Wireless Sensor Networks (WSN). The measured data verifies robustness and reliability of the system, which highlights the potential of underground personnel positioning system consisting of WSN-based backbone architecture. © 2013 IEEE.


Deng C.,Tsinghua National Laboratory for Information Sciences and Technology | Li Y.,Tsinghua National Laboratory for Information Sciences and Technology | Feng Z.,Tsinghua National Laboratory for Information Sciences and Technology | Li W.,Shougang Mining Corporation | Zhang D.,Shougang Mining Corporation
IEEE Antennas and Propagation Society, AP-S International Symposium (Digest) | Year: 2013

A novel dual-band circularly-polarized (CP) stacked patch antenna is presented in this paper. The antenna consists of two layers of FR4 substrates separated by an air gap. The dual-band circular polarization is achieved from aperture-coupled elements by a rotated square patch and a circular patch, which are etched on the top and bottom sides of the upper substrate. Computed results show that the -10 dB reflection coefficient bandwidths are 15.4% centered at 2.18 GHz and 14.2% centered at 2.5 GHz, respectively. The 3 dB axial-ratio (AR) bandwidths are 2.75% and 2.6%, which are within the reflection coefficient bandwidths. The frequency ratio of dual bands is 1.148. © 2013 IEEE.


Zhao Z.-X.,Shougang Institute of Technology | Pei Y.-D.,Shougang Institute of Technology | Pan W.,Shougang Institute of Technology | Pan W.,University of Science and Technology Beijing | And 3 more authors.
Kang T'ieh/Iron and Steel (Peking) | Year: 2010

The high temperature properties of iron ore, such as assimilation, liquid phase fluidity, can reflect behaviours at high temperature during sintering, compared with the normal temperature properties of iron ore, so the high temperature properties of iron ore are significant for optimizing ore sintering matching. High temperature properties of ores used in Shougang since 2000 were measured, compared and analyzed, with results showing that combined water of ore promotes the assimilation of ore, and ore with high SiO 2 content has high liquid phase fluidity under the same basicity, on the condition that CaO addition is no more than CaO amount according to eutectic temperature in CaO-Fe 2O 3.


Li H.-G.,University of Science and Technology Beijing | Li H.-G.,Shougang Mining Company | Zhang J.-L.,University of Science and Technology Beijing | Pei Y.-D.,Shougang Institute of Technology | And 2 more authors.
Journal of Iron and Steel Research International | Year: 2011

The whole melting curve of iron ore during sintering process was obtained, and the melting characteristics of iron ore were defined and explained. The whole melting process of mixture, mixed by iron ore and CaO reagent at basicity of 2.0 and 4.0, respectively, was observed using a SiC heating furnace with camcorder unit, and the melting curves of mixture that were relative height vs temperature curves were obtained. Besides, the melting characteristics of iron ore during sintering were introduced through defining some points in the melting curves, such as liquid forming temperature, inflexion temperature and flowing temperature, and the meaning of different shapes of the melting curves was clarified. © 2011 Central Iron and Steel Research Institute.


Zhang Y.,University of Science and Technology Beijing | Feng J.,University of Science and Technology Beijing | Xu J.,Shougang Mining Corporation | Zhang Y.,Shougang Mining Corporation | Yang J.,Shougang Mining Corporation
Energy Conversion and Management | Year: 2011

Many models of iron ore pellet induration have been developed on the basis of the first law of thermodynamics. However, the exergy analysis, well grounded on the first and second law, of the process is rare. Therefore, exergy balance test was systematically carried out on a grate-kiln, and energy and exergy analyses have been conducted to investigate irreversibility of the process. A model of iron oxide pellet exergy (IOPEM) is presented according to oxidation kinetic characteristics. It is found that the maximum effect (-6.8%) of the characteristics on the pellet exergy appears in the raised end of the kiln. The exergy efficiency of the system is determined to be 10.7% whereas its energy efficiency 59.9%, indicating a great potential for energy-saving improvements. The exergy analysis reveals exergy destruction ratio of kiln and cooler is 14.1%, and 7.7% respectively, and the largest exergy destruction (74.2%) results from the grate. No violent effect of reference environment temperature on exergy efficiency of major components is observed, indicating the grate is the major source of irreversibility. In a word, this study provides a better understanding of the energy and exergy flows of iron ore pellet induration in the grate-kiln and helps to economize energy. © 2010 Elsevier Ltd. All rights reserved.


Feng J.-X.,University of Science and Technology Beijing | Liang K.-L.,University of Science and Technology Beijing | Sun Z.-B.,University of Science and Technology Beijing | Xu J.-H.,Shougang Mining Company | And 2 more authors.
International Journal of Minerals, Metallurgy and Materials | Year: 2011

A 3-D mathematical model was presented for the cooling process of iron ore pellets based on the laws of mass, momentum, and heat transfer. The flow, pressure, and temperature fields were obtained by numerical simulation with the commercial software FLUENT. In order to verify the model, a mass and energy balance field test was systematically carried out on an annular cooler in Shougang Mining Company. The maximum relative errors of temperature, pressure, and velocity between computational and testing results are 2.87%, -8.11%, and 7.14%, respectively, indicating the validity of the model. Further, the effects of process parameters, such as pellet diameter, bed thickness, air velocity, and temperature, on the pellet bed temperature profiles were studied. © University of Science and Technology Beijing and Springer-Verlag Berlin Heidelberg 2011.


Li H.-G.,University of Science and Technology Beijing | Zhang J.-L.,University of Science and Technology Beijing | Song W.-W.,Shougang Mining Company | Liang H.-Y.,Shougang Mining Company
Kang T'ieh/Iron and Steel (Peking) | Year: 2010

To study the influence of different proportion of iron ore fines from India on the sintering efficiency and sinter quality, not only the tests of sintering characteristics and sinter cup of iron ore fines from India were done, but also the industrial test and application was researched. The sinter quality and other technical and economic indexes were explored for different proportion of iron ore fines from India. The results can provide the guidance for determining proper proportion of sinter.


Feng J.-X.,University of Science and Technology Beijing | Liang K.-L.,University of Science and Technology Beijing | Zhang C.,University of Science and Technology Beijing | Xu J.-H.,Shougang Mining Company | And 2 more authors.
Beijing Keji Daxue Xuebao/Journal of University of Science and Technology Beijing | Year: 2010

Based on the principle or laws of energy conservation, fluid flow, and heat and mass transfer, a mathematical model of pellet cooling and oxidation was established and solved by a three-diagonal matrix algorithm. Its numerical simulation software was developed with Visual Basic 6.0. A field test was performed and the established model was verified by practical measured results. The maximum relative error between computational and measuring results is 4.8%, indicating that the developed model is correct and reliable. A numerical simulation of the pellet thermal process in an annular cooler was conducted with the developed computational software and the temperature distribution of the pellet bed was gained. The simulation results show that the main influencing factors on the cooling process of the pellet bed in an annular cooler are air velocity in the first cooling zone, pellet bed thickness, pellet size and the annular cooler's velocity. Under the research condition, the reasonable operation parameters are the following: the range of pellet bed thickness is from 550 to 800 mm, the range of pellet size is from 7 to 16 mm, the range of air velocity in the first cooling zone is from 1.2 to 2.5 m · s-1, and the range of the annular cooler's velocity is from 1.0 to 1.5 m · min-1.


Du C.-F.,University of Science and Technology Beijing | Zhao Y.,University of Science and Technology Beijing | Li Y.-X.,Shougang Mining Company
Dongbei Daxue Xuebao/Journal of Northeastern University | Year: 2014

The site test and the method of numerical simulation were combined together to study the distribution of flow field in deep sunken open-pit mines. Based on actual situation of the mine, five site test points are required for the experiments in Shougang Shuichang Iron Mine to observe wind direction and wind speed of different vertical height. According to the site observation results, it shows that when the wind speed ranges from 1 m/s to 2 m/s, the coming-wind goes into the stope from both southwest and northeast and form recombination circulation structure; when the wind speed reaches to 4.7 m/s or even bigger, the wind direction of the five site test points is same with the direction of the coming-wind, no recombination circulation has been observed in the stope. Furthermore, the geometrical model of orebody was established on the basis of Gambit technology, and the distributions of flow field of deep sunken open-pit mines in different wind speed conditions were separately simulated by applying Fluent software. The simulation results show that, as the wind speed increases, the location of the local recombination circulation center increases gradually, meanwhile, so are the width of the range and the thickness of the center. The simulation results of dust mass concentration are in agreement with the site test results.


Bai L.M.,Hebei Polytechnic University | Zhang S.M.,Shougang Mining Company | Zhang D.Y.,Shougang Mining Company | Dai S.J.,Hebei Polytechnic University | Li M.,Hebei Polytechnic University
Advanced Materials Research | Year: 2013

In order to improve the separating index of ilmenite to separate the concentrate by high intensity magnetic separation, the Heishan iron ore in Chengde did some work. Separate the sulfide ore out by flotation under the conditions of concentration by weight in feed 32%, consumption of xanthate 200g/t and 2# oil 40g/t. Use sulfate to adjust the pH of the low sulphur product of flotation, the mixture of EM351-2 and EM351-3 as foaming agent, after one roughinging and four fold concentrating, got the final titanium concentrate, the grade of which is 47.23%, and the recovery is 58.29%. During the procedure of roughing, the consumption of the reagent as follows: sulfate 2kg/t, EM351-3 1kg/t, EM351-2 900g/t. The consumption of sulfate during fourfold concentrating is 1kg/t. The index is more stable when the concentration in feed is 18%~26% during flotation. The index is stable during the continuous 26 work time for the process under this reagent system. The screen analysis of the flotation concentrate indicates that this reagent system has a better effect on the flotation of +0.074mm particles, and a bad effect on the flotation of -0.045mm particles. © (2013) Trans Tech Publications, Switzerland.

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