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2023 Vol. 0, No. 09
Published: 2023-08-31
1
Influence of fine iron tailings with different content on performance of steel slag base autoclaved aerated concrete#br#
Hot!
WU Tiejun, et al.
In order to improve the resource utilization rate of iron tailings, the feasibility of making autoclaved aerated
concrete (AAC) by using fine iron tailings as raw material instead of steel slag was studied. In this paper, the effects of fine
iron tailings on pH value, fluidity, foaming property, compressive strength and dry density of AAC under different mix ratios
were studied. The mineral composition, microscopic morphology and pore structure were studied by X-ray diffraction (XRD),
fourier-transform infrared spectrum analysis (FTIR), thermogravimetry-differential thermal analysis (TG-DTA), scanning
electron microscopy-energy dispersive spectroscopy (SEM/EDS) analysis and pore structure characterization analysis. The
results showed that the addition of fine iron tailings decreased the pH of slurry, increased the fluidity of slurry, inhibited the
foaming process, decreased the diameter of pores and enhanced the compressive strength of AAC. The addition of fine iron
tailings can enhance the AAC performance, which is ascribed to the synergistic influence of tobermorite and anhydrite.
2023 Vol. 0 (09): 1- [
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8
Study on particle size characteristics of ferrialuminate cement with various fineness#br# and its influence on properties#br#
WANG Zhiyong, et al.
Particle characteristic parameters of ferroaluminate cement with various fineness were tested by sieving,
air permeability and laser diffraction methods. The test results of different methods were compared and analyzed, and
the influence of fineness on the physical properties of cement was studied. The results showed that it had a good linear
relationship between Blaine specific surface area and specific surface area calculated by laser particle size method of
ferroaluminate cement. However, it had a poor corresponding relationship between the residue on sieve results determined
by negative pressure sieve and calculated results by laser particle size method. Particle size distribution of ferroaluminate
cement with various fineness conforms to the RRSB model, and it has a power function relationship between Blaine specific
surface area and the product of characteristic particle size and uniformity coefficient. With the increase of fineness, the setting
time of ferroaluminate cement is decreasing, the strength is increasing and it has a good correspondence between the setting
time and strength and Blaine specific surface area of ferroaluminate cement.
2023 Vol. 0 (09): 8- [
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85
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14
Analysis of combustion characteristics of biomass alternative fuels
Hot!
TANG bing
2023 Vol. 0 (09): 14- [
Abstract
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117
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4
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18
Application of high alternative fuel technology in cement process design
Hot!
YAO Xiuli, et al.
2023 Vol. 0 (09): 18- [
Abstract
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99
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21
Production test of co-processing tungsten slag in cement kiln
FANG Lei, et al.
2023 Vol. 0 (09): 21- [
Abstract
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105
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24
Design and application of SCR denitrification technology in reducing nitrogen and saving energy of kiln tail gas
Hot!
NIU Zhiyuan, et al
2023 Vol. 0 (09): 24- [
Abstract
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131
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27
Fineness regulation of cement standard is seen from influence of specific surface area
LUO Fan
2023 Vol. 0 (09): 27- [
Abstract
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143
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30
Analysis of laboratory comparison results of cement mortar strength in 2022 in Shaanxi Province#br#
WANG Hailong, et al.
2023 Vol. 0 (09): 30- [
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82
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33
Application of coal-burning furnace slag as raw material in clinker production
ZHANG Haitao, et al.
2023 Vol. 0 (09): 33- [
Abstract
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101
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35
Application of coal-burning furnace slag as raw material in clinker production
ZHANG Haitao, et al.
2023 Vol. 0 (09): 35- [
Abstract
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84
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38
Practice of fluctuation adjustment of water-soluble chromium (Ⅵ) in PC kiln clinker
WU Guilin, et al./
2023 Vol. 0 (09): 38- [
Abstract
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88
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0
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40
Professional consultation inspection-a method to improve professional management level of enterprises#br#
ZENG Tingxiang
2023 Vol. 0 (09): 40- [
Abstract
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97
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43
Application of new type cyclone inner cylinder plate
JU Ruixi
2023 Vol. 0 (09): 43- [
Abstract
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100
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45
Analysis and treatment of abnormal damage of kiln refractory
LI Gang, et al.
2023 Vol. 0 (09): 45- [
Abstract
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75
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47
Technical improvement of stable blanking in homogenizing storage bin
GUO Yongqiang, et al.
2023 Vol. 0 (09): 47- [
Abstract
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110
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49
Cement ball mill discharge end cover plate replacement and bearing bush heating
LIANG Liqiang, et al.
2023 Vol. 0 (09): 49- [
Abstract
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96
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0
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51
Research and application of HRM vertical roller core repair welding technology
ZHOU Fei
2023 Vol. 0 (09): 51- [
Abstract
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75
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53
Analysis and solution of damage of planetary wheel and bearing of BPP176S vertical#br# mill reducer#br#
GAO Xianli, et al.
2023 Vol. 0 (09): 53- [
Abstract
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93
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56
Design and application of U-shaped curve belt conveyor with natural guidance
SONG Xifei
2023 Vol. 0 (09): 56- [
Abstract
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92
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59
Path of intelligent construction of cement enterprises and deep integration of#br# informatization and industrialization and related case introduction#br#
QIAN Jianrong, et al.
2023 Vol. 0 (09): 59- [
Abstract
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105
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66
Application of wireless data transmission radio in cement factory
YUAN Fengwen, et al.
2023 Vol. 0 (09): 66- [
Abstract
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79
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69
Application of regional intelligent centralized lubrication technology in cement plant
ZHAO Jun, et al.
2023 Vol. 0 (09): 69- [
Abstract
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109
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71
Application practice of automatic optimization control system in raw material vertical#br# mill#br#
LI Yutian, et al.
2023 Vol. 0 (09): 71- [
Abstract
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99
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74
Technical characteristics and application of closed-loop feedback adjustment system#br# of cement packing machine checkweigher#br#
JIA Guilai, et al.
2023 Vol. 0 (09): 74- [
Abstract
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103
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77
Optimization of electric control system for vertical mill based on Profibus-DP bus
HUANG Wuyin, et al
2023 Vol. 0 (09): 77- [
Abstract
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79
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79
Formulation of national standard for ‹determination of total chromium in cement raw#br# materials#br#
WANG Wei, et al./
2023 Vol. 0 (09): 79- [
Abstract
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137
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83
KC-0978 grate cooler hydraulic system renovation and fault judgment treatment
Han wenxian
2023 Vol. 0 (09): 83- [
Abstract
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99
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86
Improvement of safety protection measures for maintenance of cement kiln
DING Erlei, et al.
2023 Vol. 0 (09): 86- [
Abstract
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99
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