2000 Vol. 26, No. 5

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Cover Catalogue
Voltage Characteristic Curve of Sensor with Carrier of Catalyst
ZHANG Zhi-gang, WANG Ru-lin, ZHANG Zhi-feng
2000, 26(5): 1-3.
<Abstract>(34)
Abstract:
Function assessment of component is generally taken on target set by industrial standard in the research and production of component with carrier catalyst. This paper puts forward the concepts of voltage characteristic curve of sensor with carrier of catalyst through the research of carrier catalyst and the reality of production. Voltage characteristic curve can fully reflect performance of sensor with carrier of catalyst. The paper also gives measuring process of voltage characteristic curve and main proper value of sensitivity voltage characteristic curve.
The New Type Transmission and Display System for Coal Level in Bunker on and under the Ground
WU Yu-liang
2000, 26(5): 4-5.
<Abstract>(29)
Abstract:
In order to perfect mine industrial television monitoring system, Baodian mine adopts radar detecting head replacing ultrasonic detecting head and applies with techniques of Bitbus communication error correcting and computer pattern, which has achieved automatic control and monitoring of coal level in coal bunker.
Research on Digital Controller of DC Power Charger Based on Microcomputer
WANG Xin, DU Qing-na
2000, 26(5): 6-8.
<Abstract>(38)
Abstract:
The paper calculates the transfer function of accumulators for thyristor rectifying charger based on microcomputer in detail and approximately settles the transfer function. It analyzes the characteristics of charger system and gives the designing methods of digital controller of charger system. It also advances the defining methods of magnifying coefficient of thyristor rectifying device in the microcomputer control system. At the same time, the main components, basic working principle and main functions of charger based on microcomputer are introduced.
Study in Disk Braking System for Downward Belt Conveyor
BAO Ji-hua, YU Yan, ZHOU Man-sha
2000, 26(5): 9-10.
<Abstract>(16)
Abstract:
Design of General Database in Network Management Information System for Coal Preparation Plant
HE Ya-qun, LIU Huai-yu
2000, 26(5): 11-12.
<Abstract>(24)
Abstract:
Data interchange is a key link in the overall design of Local Area Network (LAN) Management Information System(MIS). With researching the way of general data interchange on LAN MIS, the paper puts forward a plan for general database which suits to current administration pattern in coal preparation plant. The design has effectively solved the general data interchange problems of subsystems in LAN MIS.
Research on Integrated Facility Management System in CIMS for Coal Preparation Plant
GONG Dun-wei , XU Shi-fan , HONG Da-wei
2000, 26(5): 13-15.
<Abstract>(56)
Abstract:
Based on the requirement of facility management and the framework of CIMS for coal preparation plant, the paper proposes the architecture of integrated facility management system in CIMS, gives technical route to realize the system and reconfigures the organization system related with the integrated facility management system. It can carry out production smoothly, reduce production costs of product by applying with this system, which can raise the competitive power of product in the market.
Study on Test Bed of Hydraulic Valve
LI Xin-ping, SHI Lian-jun, ZHOU Zhi-qing, YANG Jing, SUN Dong-dong, ZHU Huai-bing
2000, 26(5): 15-16.
<Abstract>(70)
Abstract:
Main Causes Why Home-made PC Electric Control System for Mine Hoisters Has Not Achieved All-PC and the Way to Deal with the Situatio
LIU Chun-sheng
2000, 26(5): 17-19.
<Abstract>(31)
Abstract:
This paper expounds the developing course and present situation of home made PC electric control system for mine hoisters and points out main causes why the PC electric control system has not achieved all PC. The countermeasures to make it all PC are put forward. Finally, system achieved method of the braking system of mine hoisters controlled by PC is introduced.
Current Status of Research and Prospect for Compensation of Dynamic Reactive Power
WU Xiao-jie, BAI Yue
2000, 26(5): 19-22.
<Abstract>(28)
Abstract:
The paper introduces the genesis of problems about reactive compensation, solving measures through classification and relation between reactive compensation and harmonic inhibition. It also introduces the current status and tendency of research and development at home and abroad.
The Application of Variable-frequency Speed Regulator in Raised Shaft Drill
SUN Yu-ping, XU Zi-ping, ZHANG Bi
2000, 26(5): 22-23.
<Abstract>(26)
Abstract:
Utilizing Fixed Loading to Increase Lift Ability
MIAO Yun-jiang, NI Hong-zhao, YAN Qian-hui
2000, 26(5): 24-25.
<Abstract>(32)
Abstract:
The Application of Centralized and Decentralized Control System in the Production Process of Diggings Coking Plant
HAO Rong , LIU Xiao-qiang , GUO Yi-nan , DOU Wei , WANG Su-chuan , TAN De-jian , LI Cun-tao , BAI Xian-he
2000, 26(5): 26-28.
<Abstract>(54)
Abstract:
This paper introduces the application of centralized and decentralized control system in the production process of diggings coking plant. The system structure, function, main control tactics and application software are described.
The Application of Complete Equipment of Automatic Following and Compensation of Capacitance Current of High-voltage Electric Network and Ground Protection in Huafeng Coal Mine
YU Guo-qiang, HAN Ting-liang
2000, 26(5): 29-30.
<Abstract>(42)
Abstract:
Network Linking System with PLC of Series SYSMAC
ZHANG Lin
2000, 26(5): 31-32.
<Abstract>(55)
Abstract:
It is presented the network linking system which is composed of series SYSMAC PLC in the paper. This system has many advantages, such as the reliable workability, flexible configuration, long communication distance, fast transmission rate, ect. It can be applied to the long distance and decentralized control system with different scale based on PLC control.
The Application of Microcomputer in Industrial Boiler Control System
SHANG Li-qun, YE Bing
2000, 26(5): 33-34.
<Abstract>(48)
Abstract:
The Applicaiton of Cryptographic Identification Button in Automobile Security
HE Quan-shun, YU Zhong-we
2000, 26(5): 34-35.
<Abstract>(28)
Abstract:
Cold-draw Technology of Thin-wall Tube
LIU Guang-xin, ZHANG He-xi
2000, 26(5): 36-36.
<Abstract>(41)
Abstract:
Study and Analysis of the Data Exchanging Unit Used in Model KJ93 Mine Control and Monitoring System for Safety and Productio
LI Chang-qing, ZHU Shi-song, ZHAO Jian-gui
2000, 26(5): 37-39.
<Abstract>(29)
Abstract:
The paper deals in detail with the designing methods of hardware and software of the data exchanging unit used in model KJ93 mine control and monitoring system for safety and production.
Adjusting of Intermediate Frequency Power Supply and It’s Fault Removing Methods
TONG Jun, YE Xin-mi
2000, 26(5): 40-42.
<Abstract>(51)
Abstract:
The paper analyses the principle, adjusting and common fault removing of intermediate frequency power supply with novoltage starting.
Several Problems in Circulating Programmable Electric Control System of AC Hoisters
XU Hui-yong
2000, 26(5): 43-45.
<Abstract>(60)
Abstract:
The paper discusses the existing problems of vacuum commutator and rotor vacuum contactor in programmable electric control system of AC hoisters and puts forward the methods to solve them. It also introduces several links of control circuits and improving plan of the control system.
Secondary Line Design of Centralized Control for Low-voltage System with Δ-Y0-11/Y-Y0-12 in Coal Preparation Plant
XIAO Hai-feng, HONG Ting
2000, 26(5): 46-46.
<Abstract>(30)
Abstract:

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