Research and Application of Coal Mine Enterprise Risk Information. Database. Prof. CHEN Quan, JIA Li-meng

Transcription

1 Applied Mechanics and Materials Submitted: ISSN: , Vol. 696, pp Accepted: doi: / Online: Trans Tech Publications, Switzerland Research and Application of Coal Mine Enterprise Risk Information Database Prof. CHEN Quan, JIA Li-meng (College of Environmental Science and Safety Engineering, Tianjin University of Technology, Tianjin , China) KeyWords: risk identification; risk information database; dynamic management; risk management and control tools Abstract: Enterprise safety management is centralized through scientific means, enhancing efficiency of safety management, which is an inevitable trend of safe production. Taking GT coal mine as an example, we propose identifying possible risk factors during the production process by systematic risk identification and establishing the risk information database. We should use risk information database to build a safety risk information system and produce a variety of risk management and control tools according to the actual needs of the company. We can realize dynamic management, standardize enterprise risk management and reduce accidents through continuous improving and upgrading the risk information database, which can finally achieve the healthy development of coal industry. 1.Introduction The coal industry is an important part of our industrial system. The traditional safetymanagement is unable to meet the needs of a modern industrial revolution with the development of coal industry [1]. After I visited GT coal mine, I find the safety management status of GT coal mine exists following defects: low safety management efficiency, low level of information technology (information data of safety management mainly relies on manual records and queries and the data processing mainly relies on artificial refining and screening), risk information data without dynamic management, backward concept of safety management, etc. Management efficiency is decided by accuracy of policy and accuracy of policy is decided by safety of the information. Therefore, management of coal mine safety information becomes an important research of the current coal mine safety management [2-3]. Enterprise safety management is essentially a risk management, whose aim is to reduce the impact of uncertainty of risk in daily production on enterprises to the maximum [4]. Safety management system can improve management efficiency of enterprises, share information resources and standardize the safety management of enterprises. 2.Significance of Establishment of Risk Information Database In recent years, information technology ofsafety management is an inevitable choice of the current safety management with the rapid development and widely use of information technology [5]. Risk information database applied in prevention and treatment of safety accidents as well as in daily management of safety production emerges with the consistent development of communication technology and computer technology, thus changing the traditional structure of safety production All rights reserved. No part of contents of this paper may be reproduced or transmitted in any form or by any means without the written permission of Trans Tech Publications, (ID: , Pennsylvania State University, University Park, USA-19/02/16,19:30:23)

2 302 Innovative Development of Industrial Manufacturing control, improving the efficiency of production safety control and reducing the probability of production safety accidents. Establishing and improving the risk information database not only can accelerate information technology development of coal industry, but share the risk information as well as change the traditional concepts of safety management. Risk information database is not only an important part of enterprise safety risk management information system, but also a crucial step of the transition from experience management to scientific and systematic management [6]. Risk information database can provide foundation and basis for various safety decisions of enterprises and help realize dynamic management of enterprise risk information. 3.Establishment of Enterprise Risk Information Database 3.1 Collection of Risk Information The enterprise safety management is essentially the risk management of enterprises, that is, control the impact of uncertainty in the production process within acceptable ranges. Risk management consists of three parts of risk analysis, risk assessment and risk control. Collection of risk information is the identification of risks. The common risk identification methods contains: Failure Mode and Effect Analysis (FMEA), Preliminary Hazard Analysis (PHA), Hazard and Operability Analysis (HAZOP), Event Tree Analysis (ETA), Fault Tree Analysis (FTA), Energy Source Analysis (ESA) and so on. In order to carry out a comprehensive risk identification, I carry out identification of risk information through different identification methods as technical paths from four different perspectives according to production characteristics of GT coal mine and the differences of various identification methods. The specific technical paths are shown in Figure 1. Risks and Risk Factors in Production Activity Job Hazard Analysis (JHA) Security Risk and Risk Factors in GT Coal Mine Production Operation Equipment/Facility Risk and Risk Factors Process Risk and Hazard Factors Failure Mode and Effect Analysis (FMEA) Hazard and Operability Analysis (HAZOP) Regional and Environmental Risk and Risk Factors Energy Source Analysis (ESA) Figure 1 Technical Path for Safety Risk and Risk Factors in GT Coal Mine Production As the above Figure 1 shows, we use four different methods to identify risks and risk factors of production activity, equipment/facility, process and region and environment during the process of identification of safety risk and risk factors in GT coal mine production operation. risks and risk factors in production activity from the perspective of people s unsafe behavior uses job hazard analysis (JHA) to identify the risk of each step starting from each process. Identification of equipment/facility risk and risk factors from the perspective of object s unsafe condition uses

3 Applied Mechanics and Materials Vol failure mode and effect analysis (FMEA) to identify risk factors and the hazards on personnel caused by the failure of each component through splitting equipment and facilities into relatively independent systems, subsystems or components starting from equipment and facility. Identification of process risk and hazard factors uses hazard and operability analysis (HAZOP) to divide each ventilation process node, determine factors and find risk factors for deviation in order to identify risk factors from the perspective of ventilation process. Regional and environmental risk and risk factors from the perspective of environmental factors uses energy source analysis (ESA) to divide production environment into separate areas and analyze the regional energy source and identify the risk considering all the factors causing accidental release of energy. 3.2 Establishment of Risk Database The basis of enterprise information database is to identify actual risk factors of enterprises. Only comprehensive and systematic identification of risk factors can make database play a real role. Based on the risk identification methods, we draw risk identification forms, as shown in Table 1 and Table 2 (summary table) and get the risk identification results. Through the above four identification methods, we identify risks as follows: a total of 2560 risks of gas explosion, fire, dust damage, poisoning, suffocation and 7388 corresponding hazards, then convert the above risks into computer language through computer technology, from which risk information database is established. Table 1 Risks and Risk Factors in GT Coal Mine Production Activities Process Cutting Coals Working Task Starting Shearer Risks Mechanical Injury Risk Factors(Object s Unsafe Conditions, People s Unsafe Behaviors) Isolation switch or operating handle failure causes accidental injury due to shearer isolation switches, each connecting bolt, cutter, each operating handle, etcunchecked before starting the shearer Existing Control Measures Before Operating Procedures starts, we should firstly put shearer isolation switch onto off position and then we must check all the components intact with the required water and oil Assessment of Existing Control Measures The existing control measures basically meet the requirements, but lack of clear and systematic standard and guidelines for checking Table 2 Equipment/Facility (Belt Conveyer) Risk and Risk Factors Components Failure Mode Risks (Possible Accidents) Causes of Failure Existing Control Measures Personnel Insulation aging, damaging, short surrounding circuit of start cable; Facilities including equipment suffer disconnecting of cable; cable control buttons, signaling, Remote from mechanical Malfunctioning error; mistakenly deleting remote communications, etc Start damage due to starting program; disconnecting or should be sensitive and unable opening insecurely connecting of signal reliable and braking cable and fiber optic cable normally

4 304 Innovative Development of Industrial Manufacturing 4.Dynamic Management of Risk Information Database The database changes all the time. There emerges new risk information with the development of production process, upgrading of the equipment, expansionof underground work and the change of environment factors, thus the risk database should update accordingly. That is, the original risk information inapplicable to the new work should be changed or deleted correspondingly and re-identification should be carried out due to the emerging of new risk factors with the introduction of new process, usage of new equipment and change of working environment. Results of re-identification should be entered into risk information database and therefore upgrading and perfection of risk information database can be realized, dynamic management of which should be conducted by management personnel. Authority of modifying and entering functions of risk information database should be limited in order to prevent unnecessary losses caused by personnel s operational errors. Personnel should recommend new risk information or modifying of original risk information to the safety supervision department, who verifies the information uniformly and inspects the reliability of personnel s recommendations, finally decides whether the risk data should be modified or entered. The overall process is shown in Figure 2. Personnel find problems Recommend advices to the safety supervision department Personnel of safety supervision department verify information Verify the reliability of modifying advices No Yes Non-modification of original risk information Enter new risk information or modify original risk information Figure 2 Flowchart of Dynamic Management of Risk Information Database Only when adding, modifying, supplementing and improving risk information data and maintaining dynamic updating and management of risk database are ensured, can the risk information database play a real role. 5.Application of Risk Information Database Enterprise safety risk information database is the core foundation of enterprise safety management, an important basis for enterprise safety decisions as well as the key step of the transition from experience management to scientific and systematic management [9]. Enterprise risk database not only provides query, entry, modification and other basic functions, but also allows us to extract a variety of information from risk database and combine them rationally to form appropriate control tools for enterprise management, which contains special safety precautions, post risk warning and safety operation card, information cue card of post hazard source, troubleshooting list of equipment, facility and working environment, checklist of three violation behaviors, job training courseware and other risks. 5.1 Post Risk Warning and Safety Operation Card I have extracted concerning risk data from risk information database and formed basic information files learned in the class for the front-line employees, as shown in Table 3. It contains the posts involved, risks and risk factors of each operation as well as the correct operational ways corresponding to each risk. Employees can operate by their own according to the norms in order to reduce the possibility of accidents.

5 Applied Mechanics and Materials Vol Table 3 Post Risk Warning and Safety Operation Card of GT Coal Mine (Cutting Coal Operation) Risk Cues: SpallingMechanical Injury Squeezing Injury Hitting Injury Pounding Injury FireGas ExplosionElectrical Shock No. 1 Working Task Starting shearer Risks Risk Factors Safe Operation Spalling Coal wall surrounding shearer unchecked before starting shearer; coal crushers not tapped timely or due to operation workers improper operation; spalling injury caused by without using professional tools Changes of coal wall, seam thickness and top floor should be fully checked; operation workers should wear safety protection equipment; operation workers must firstly use professional tools to ensure wall tapping and roof sounding when stepping into operation site 5.2 Troubleshooting List of Equipment/Facility and Working Environment I have screened concerning information on the basis of GT coal mine risk information database and developed troubleshooting lists of different levels for each team according to the mine troubleshooting system, as shown in Table 4. Table 4 District-level Troubleshooting List of Equipment/Facility and Working Environment of GT Coal Mine (Ventilation Area) Equipment/ Facility/ Working Environment Check Item Check Standard Risks Caused by Violating Standard Risk Rating Check Results Main fan ventilation capacity matches with wind drag and operating point within the reasonable Main Fan Main range Ventilation Fan Main fan operates normallywithout abnormal Accident sound, smell and vibration; each throttle switch is flexible, tightly closed and without leakage. 6.Conclusion The establishment and application of risk information database can improve the efficiency of enterprise safety management, realize sharing of information resources and provide foundation and basis for enterprise safety decisions. We can obtain the following conclusions through studies in this paper: 1) Establishment of risk information database has changed the traditional mode of safety management of GT coal minemine, promoting the development of coal industry information, improving the efficiency of safety management and reducing accidents. 2) I select four methods of job hazard analysis (JHA), failure mode and effect analysis (FMEA), hazard and operability analysis (HAZOP) andenergy source analysis (ESA) to conduct systematic and comprehensive identification of risk factors in all the regions of GT coal mine from four perspectives of people s unsafe behavior, object s unsafe behavior, ventilation process and working environment, which provides data basis for the establishment of risk database and meanwhile provides a reference for risk identification of the same industry.

6 306 Innovative Development of Industrial Manufacturing 3) Dynamic management of risk information database enables risk information coming from the grass roots, and at the same time the usage of various control tools enables risk information serving for the grass roots, which not only mobilize the enthusiasm of the junior staff, but standardize safety management of enterprise, promote transition of enterprise safetymanagement mode, make safetymanagement upgrade with the times and finally achieve good results. 4) Establishment and application of risk information database enables mining enterprises using technology to reduce casualties and makes qualified employees combine with high-tech information, which creates scientific information platform for the improvement of safety management as well as provides necessary decision Reference [1] ZHOU Hai.Safety Management Information System Implementation and Management for Petrochemical Enterprises [D].Zhejiang University of Technology, 2013 [2] QI De-gen.Safety Management Information System Analysis and Design for Pingdengshan Coal Group [D].Xi an University of Science and Technology, 2012 [3] LIU Tie-min. REN Wei.Status and Countermeasures of China s Coal Mine Safety Management [J]. Coal Mine Safety, 2000(2)55-57 [4] YAO An-lin. Study on Risk Management System for Petrochemical Enterprises [J]China Safety Science Journal, 2007,17(7): [5] ZHENG Li-xin. Safety Management Information System Design and Implementation [D].University of Electronic Science and Technology of China, 2013 [6] MAO Yu-zhong. LI Rui-xia.Development and Application of Risk Database for Eco-efficient Agriculture Industrialization[J].Modern Agriculture, 2000(7) [7] LUO Yun, etc. Modern Safety Management [M]. Beijing: Chemical Industry Press,2009, [8] LI Xin-juan.Coal Mine Safety Risk Management System and Basic Model Study [J]Coal Mine Safety, 2009(12): [9] HUO Zhong-gang. Status and Development Direction of China s Coal Mine Safety Technology [J]Coal Mine Safety, 2008(12):

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