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2024 Vol. 0, No. 05
Published: 2024-05-10
1
Research on resource application of lepidolite slag as cement mixture and admixture
Lepidolite slag is a general solid waste, its main components are silicon dioxide, aluminum oxide, calcium oxide, iron trioxide, etc., and the composition is similar to cement mixtures and concrete admixtures. In this paper, a number of detections and tests have been carried out based on the requirements of national standards, and the feasibility of using it as cement mixture and admixture has been analyzed from many aspects. The results showed that the lepidolite slag is qualified in heavy metal leaching and radioactivity detection, which has potential hydraulic and pozzolanic properties. It passes stability detection, has a high activity strength index, and meets the basic requirements as a cement mixture and admixture. However, lepidolite slag has a high-water content, large composition fluctuations, and high alkali content and sulfur trioxide content. When using lepidolite, homogenization should be strengthened and the addition should be controlled to make the alkali and sulfur trioxide content in cement meet the national standard requirements
2024 Vol. 0 (05): 1- [
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127
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4
Process of green and low-carbon development of cement industry in China and suggestions for next step
Hot!
LIU Shujuan, et al
2024 Vol. 0 (05): 4- [
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105
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7
Discussion on difference between Zhejiang Province and national cement industry ultra-low emission transformation policy
YUAN Chenjian, et al
2024 Vol. 0 (05): 7- [
Abstract
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85
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12
Practice of transforming 5 000 t/d production line for ultra-low NOx emission
CHENG Hongtao
2024 Vol. 0 (05): 12- [
Abstract
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107
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17
Way of realizing zero discharge of wastewater in cement enterprises
Hot!
PAN Lei, et al.
2024 Vol. 0 (05): 17- [
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93
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19
Production practice of co-processing of municipal sludge with cement kiln
ZHAO Wukui
2024 Vol. 0 (05): 19- [
Abstract
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88
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22
Study on chloride ion permeability resistance of high strength concrete under different curing methods
LI Shuai, et al.
In order to explore the influence of curing methods on the chloride ion permeability resistance of high strength concrete, this study used the RCM method and the electric flux method to comparatively study the chloride ion penetration resistance of high-strength concrete produced by the three most common curing methods (standard curing, steam curing and high temperature autoclaves curing) in practical engineering. The results showed that the chloride ion migration coefficient of the same component concrete was positively correlated with the electric flux. Compared with the high strength concrete under standard curing, the chloride ion migration coefficient of concrete under steam curing and high temperature autoclave curing increased by 365.4% and 61.5%, and the electric flux increased by 317.8% and 110.7% respectively.It is mutually confirmed that the chloride ion resistance of standard curing concrete is the best, and the chloride ion penetration resistance of high temperature autoclaved curing concrete is between standard curing and steam curing
2024 Vol. 0 (05): 22- [
Abstract
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93
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27
Flow rate control and application of cement powder in grinding mill based on GPC
NIE Mingming, et al
2024 Vol. 0 (05): 27- [
Abstract
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92
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30
Research and application of auxiliary loading model of cement shipping terminal based on deep learning
WANG Yang, et al.
The dock is an important hub connecting water transportation and land transportation. However, due to the complex working environment of the loading machine on the dock, operators may face many problems during the loading process, such as the inability to fully monitor the operation process, and the emission of ash/dust during loading. In order to alleviate this situation, this paper proposes an assisted ship loading model based on deep learning algorithms. Based on advanced YOLOv7 and YOLOv8 models, it can monitor the loading process 24 hours a day, predict the position and height of the ship loading spout in real time, calculate the material deviation and detect ash emission during loading. In addition, when the ship loading spout approaches the walls of the cargo hold, a warning will be issued to avoid collision.
2024 Vol. 0 (05): 30- [
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81
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35
Design of robot hard facing system of roller sleeve of vertical grinding roller based on machine vision
CHEN Zhonghua
2024 Vol. 0 (05): 35- [
Abstract
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107
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37
Real-time volume and top position calculation of bulk piles based on 3D point cloud
LIU Kun
2024 Vol. 0 (05): 37- [
Abstract
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111
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40
Thinking on improving quality of engineering design documents of cement plant
ZHANG Xi
2024 Vol. 0 (05): 40- [
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68
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43
Practice of reducing resistance of kiln head exhaust system
Hot!
LI Yutian, et al.
2024 Vol. 0 (05): 43- [
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133
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46
Optimization measures of cement vertical mill operation without heat source
TIAN Fu, et al.
2024 Vol. 0 (05): 46- [
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80
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48
Quantitative analysis of consumption reduction effect of nano heat insulation material in preheater
MAN Yuanli
2024 Vol. 0 (05): 48- [
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80
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50
Measures to reduce pulverized coal depletion in kiln
LI Qiang, et al.
2024 Vol. 0 (05): 50- [
Abstract
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97
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52
Design, development and application of high substitution ratio calciner
Hot!
WANG Xuanqian, et al
2024 Vol. 0 (05): 52- [
Abstract
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105
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57
Successful practice of assembling vertical grinding roller bearings by liquid nitrogen freezing method
WANG Xiaoxing
2024 Vol. 0 (05): 57- [
Abstract
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88
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62
Analysis and treatment practice of motor journal and bearing bush failure
SHAO Zhongwei
2024 Vol. 0 (05): 62- [
Abstract
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79
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66
Application of new stud roller in cement industry
WANG Xin, et al
2024 Vol. 0 (05): 66- [
Abstract
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107
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69
Abnormal high temperature treatment of rotary kiln support wheel and application of water lapped tile technology
LI Wenming
2024 Vol. 0 (05): 69- [
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102
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71
Transformation of raw material inlet V selection channel in roller press system
GONG Jianli, et al
2024 Vol. 0 (05): 71- [
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78
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73
Upgrading practice of circulating water system of waste heat power generation in cement plant
WANG Mingyue
2024 Vol. 0 (05): 73- [
Abstract
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72
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75
Optimization and improvement measures of slag micro-powder metering system
LI Mingjie, et al.
2024 Vol. 0 (05): 75- [
Abstract
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85
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77
Renovation of forced blanking of fly ash storage silo
RONG Jianyong
2024 Vol. 0 (05): 77- [
Abstract
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107
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