I. Analysis of current situation of electromechanical safety management
(1) Problems with management personnel
1. The functional role of the electromechanical management personnel has not been fully utilized, and the regional team has not recognized the importance of electromechanical safety management. At present, most teams have the idea that my job is to grab the footage and catch the output. This month's production tasks are over-completed, and my work will be done this month. In the work, the management of electromechanical equipment has nothing to do with me. Although there are also teams who arrange electric pliers to repair and maintain the equipment, he rarely asks questions about whether the work has been done, overhauled or maintained. This short-sighted approach to re-production and light equipment management is not advisable. In the future, equipment may fail at any time, seriously affecting the normal production.
2. The overall technical quality of the electric fitter team is low. Skilled and professional technicians are seriously lacking. Some electromechanical personnel have no professional technical knowledge and lack of theoretical knowledge. Some of the electromechanical personnel have just been recruited from the school, and they lack practical experience. Violations often occur.
3. Electromechanical training has gone through the field and the purpose of training has not been achieved. Although the electromechanical training work is carried out year after year, due to the short training time, the pertinence is not strong, the theoretical knowledge is more abstract, the employees can not be applied in the actual work, resulting in low enthusiasm for employees, and electromechanical training has gone through the game. The failure to achieve the "I want to learn" to "I want to learn" change, training can not achieve the desired results.
4. The safety awareness of electromechanical personnel is weak, numb, and does not firmly establish the idea of ​​"safety first". It violates the "three major regulations" and related safety regulations, illegal command, and illegal operation. The level of education is uneven, and the technical process of mastering special operations is not familiar. The knowledge of the safe operation of technical work is not well understood and the level of familiarity is not enough.
5. Insufficient understanding of electromechanical quality standardization work. Each mining area does not manage or abandon management of electrical management, five small electrical appliances management, explosion-proof inspection, equipment management, parts management, cable and pipeline suspension management, and equipment oil leakage. The electromechanical personnel's quality standardization was poor, and they failed to achieve the standard post and standard work. The management of fixed equipment and mobile equipment failed to comply with the "Electromechanical Quality Standardization Standards".
6. As the company's mechanization level continues to improve, mechanical and electrical equipment is constantly updated, and new technologies are seriously lagging behind. For example, if the slope of the inclined shaft, the three-speed, the variable frequency winch, and other technical strengths are weak, the equipment will be difficult to repair in time, and it will not be repaired in time. The technicians need to be repaired, resulting in the passive production of electromechanical safety.
(2) Problems in equipment management
1. Management is not in place. The whole process management of equipment from selection, purchase, installation, maintenance, repair to scrapping is not in place at some points. For example, the existing low-voltage flameproof vacuum feed switches have equipments produced by Shanghai Hudong, Bada Electric, China Electro-optical, etc., which increase the cost of equipment maintenance parts. Equipment often fails, resulting in equipment accessories not being shared. The equipment cannot be rotated and repaired as planned, and some electrical equipment is directly transferred to the operation site for use. The quality of equipment maintenance is not up to standard, and some of the repaired equipment cannot be used after the underground installation or the oil leakage is serious.
2. Due to the adjustment and change of the operation site at any time, the movement is frequent, and the installation of electromechanical equipment is increased; in view of the complicated geological conditions in the underground, the maintenance and maintenance of electromechanical equipment cannot be in place.
3, mechanical and electrical equipment "with disease" operation is taken for granted. During the daily inspection process, it was found that various units in the use, maintenance and management of machinery and equipment still have many problems such as extensive management and inconsistency.
4. There are many hidden dangers in electromechanical equipment. Safety facilities, protective devices are incomplete, personnel positioning system and safety monitoring system are not working properly. Some fixed equipment voltmeters, ammeters, pressure gauges, vacuum gauges, safety valves are not regularly verified according to regulations or long-term unverified, underground electrical device without the required electrical tests done, overcurrent protection setting is too large, some copper, aluminum, iron, instead of the fuse wire. Leakage protection, lighting signal comprehensive protection failure, belt conveyor not installed comprehensive protection, wind power blocking, gas electrical blocking test and record is not standardized. The material and process of the local grounding electrode and connection of the underground did not meet the requirements, and the installation was unqualified. The explosion of electrical equipment is not uncommon.
Second, the countermeasures to improve the level of electromechanical safety management
(1) Improve management personnel's understanding of the use, maintenance and management of electromechanical equipment.
1. The transportation department must strengthen supervision, guidance and service work. The person in charge of electromechanical technology should regularly inspect and supervise the equipment maintenance and repair work of each team, and provide necessary guidance on technology. For some drivers who do not understand the maintenance and repair equipment, they should be taught how to do it and arrange it in a planned manner. The drivers and teams of each unit conduct training in rotation, so that they all recognize the importance of the management of mechanical and electrical equipment, thereby improving their skills in repairing and maintaining equipment.
2. The scrapped materials and equipment should be scrapped in time and cannot be used any more. For example, the curved and squeegee scraper should be replaced in time. If it cannot be used, it should be replaced and repaired. It should follow the operation requirements and laws of the equipment. Maintenance and maintenance.
3. It is necessary to strengthen the inspection and inspection of electromechanical equipment and the routine maintenance and regular maintenance of electromechanical equipment. The maintenance of electromechanical transportation facilities shall be formulated with inspection plans and measures, clear inspection tasks and scope, detailed records of maintenance contents, specification quality and maintenance personnel, and designated personnel or equipment administrators to check and accept.
(2) Improve the technical level of employees' business, promote a skill and versatility, and take the position of employees in the right place to give full play to each individual's specialty.
1. The main responsibility of the scraper and belt driver is to open the scraper and the belt conveyor. At best, only the dry coal of the floating coal is used. As a transportation driver, the basic structure and simple maintenance of the scraper and belt head equipment should be Understand, the scraper and belt conveyor are not always open every shift. When the machine is stopped, there is sufficient time to maintain the equipment. Check whether the roller is in good condition, whether the belt runs on the bracket, whether the scraper is missing. And intact, the speed of the gearbox and hydraulic coupler is abnormal. The literacy level of employees is different. We must give full play to the role of each employee. For those with strong skills, we must use some people with higher education level. Their ability to accept is relatively strong, and it is easy to learn something with strong technical requirements. People with lower literacy can do some less technical work. The use of employees in each position should be tailored, not blind, and must be targeted to effectively play the role of each employee.
2. Establish an incentive mechanism to improve the economic treatment of technical backbones. The electric fitter evaluates the technical title and strictly implements the wage level of the downhole electric fitter and the management of the salary level of the ground electric fitter.
(3) Strengthen the technical training for the use and maintenance of mechanical and electrical equipment and improve work efficiency.
In order to manage, use and maintain mechanical and electrical equipment, it is necessary to have a competent professional technical team to strengthen professional technical training for employees. Business technology training is an important basic work of electromechanical management. Trained personnel must learn the basics and learn the technical expertise needed to manage, use and repair equipment. For example, the basic structure of the winch, the basic electrical schematic, the operator must know, the role of the planetary gear of the winch, the transmission mode of the motor, the fixing method of the wire rope, the wear requirements of the wire rope, etc. He understands the basic principles of these devices. In the actual use and maintenance process, he can handle it consciously, and he can work according to the requirements of the equipment. This also increases the reliability and safety of the equipment. Others such as the scraper of the scraper are distorted and deformed. The slipper chain jumps, affecting normal production. It takes a certain time for each chain to be processed, and there is a safety hazard. Normally, replacing a scraper can take only a few minutes to complete, and it is almost done in idle time. The daily maintenance of the belt roller and the tightness of the bolt at the rotating part must be checked at any time. These are all required by the technology of electromechanical equipment. By doing daily use, maintenance and management, we can reduce the labor intensity of employees, improve work efficiency and increase the safety factor. Therefore, we must strengthen professional technical training for each position. Work and improve the professional and technical level of our employees is an indispensable part of our mechanical equipment management. Training on the professional skills of employees, targeted theoretical training, to let employees know the theoretical knowledge of some of the equipment used. At the same time, in the work, the technical management personnel can conduct on-site guidance, connect the theory with the actual, and carry out the actual operation. This will fundamentally improve the level of staff operations.
(4) Strengthen the establishment of standardization of electromechanical quality, establish and improve a standardized management system, improve the quality standardization awareness of all electromechanical personnel, and carry out electromechanical work in accordance with standardization requirements.
Electromechanical standardization is the basis for ensuring the safe and mechanical production of mines. It is necessary to gradually improve the electromechanical standardization work, and formulate the goals, specific measures and completion time of standardization construction. Implement the "three catches", that is, to upgrade the quality of the surface, grasp the head surface, the machine path, the machine room online, and focus on the weak links. Establish an electromechanical standardization reward and punishment system, carry out electromechanical standardization competition activities, establish a standardized model electromechanical mining area, computer room diverticulum, and machine path, and promote the comprehensive development of electromechanical standardization work.
(5) Innovate employees' electromechanical safety publicity and education, and increase training efforts.
Targetedly conduct dynamic drills for employees, focus on solving the contradiction between informatization input and employee quality, and realize informationization of safety management, standardization of formal operations, refinement of equipment and facilities, and humanization of working environment. Gradually form a closed technical training management process.
(6) Establish a complete and effective management procedure.
The mechanical transportation department is the functional department of mechanical and electrical equipment management. It is responsible for the management of all mechanical and electrical equipment in the mine. It is responsible for formulating the mechanical and electrical equipment management system. It is necessary to establish a practical and sound standard for large and small mechanical and electrical equipment, and is responsible for daily supervision and inspection; The team captain of the team is the first responsible person of the electromechanical equipment management of each district team. It must be very clear about the perfect standards of electromechanical equipment, and strictly comply with the requirements of the package mechanism, and the responsibility for the management of electromechanical equipment is up to the people; the equipment is not strictly prohibited; the district teams It is necessary to have a complete and effective system for the use, maintenance and management of electromechanical equipment; each district team must have detailed records regardless of the use and maintenance of the equipment. The mechanical transportation department and the management personnel of each district team must strictly inspect the mechanical and electrical equipment in strict accordance with the requirements of the mechanical and electrical equipment, and conduct strict assessment of the incomplete mechanical and electrical equipment. If the equipment does not meet the requirements, the punishment shall be put in place according to the equipment management regulations, so as to further strengthen the safety production management of each district team. Responsibility of personnel and operators.
(7) Actively adopt new equipment, new technologies and new processes.
Promote the use of new equipment, new technologies, new processes, especially the use of comprehensive mechanized coal mining equipment, to avoid the use of equipment to reduce equipment investment, a large number of personnel, a wide range of points, and low efficiency of human tactics, should go out of vicious circle, adopt Advanced process flow, reasonable control of the number of operating points and working surfaces, reducing the number of accident sources. Adhere to the concept of “multiple equipment and less peopleâ€, vigorously promote the heavy equipment of mines, improve the comprehensive mechanization level of mines through equipment, and truly realize the safety, high output and high efficiency of mines.
(8) In order to ensure and facilitate the management of mechanical and electrical equipment, when selecting electromechanical equipment, it is necessary to make the model uniform and the manufacturer uniform. The equipment is intelligent. In order to facilitate quick troubleshooting, the model of the equipment is unified, the spare parts are interchangeable, which reduces the time of failure. Second, it is easy to train, and the staff can quickly grasp the performance of the switch, as long as one understands the model. The switch will do.
(9) Highlight the key points of electromechanical management.
The current electromechanical management should highlight the four key points:
1. Improve the safety and reliability of electromechanical equipment. The important electrical equipment that threatens the safe production of mines must be updated and modified in a timely manner. For equipment that does not meet the requirements and standards of the “Safety Regulations for Coal Minesâ€, it is necessary to formulate rectification plans in phases and rectify them in batches. Gradually improve the safety and reliability of the equipment.
2. Ensure that the three systems of underground power supply, lifting and transportation are operating normally. The underground power supply system is the power system for the production of first-line equipment. The underground environment is complex and changeable. The focus is on the on-site management of mobile equipment, perfecting the safety integrated protection device to prevent the occurrence of power failure trips and preventing the explosion of electrical equipment. Lifting transportation is the main transportation equipment of the mine. In particular, the main and auxiliary shafts are lifted daily. It is the throat of the mine. Every day, it is necessary to strengthen the inspection of the lifting wire rope, winch, connecting device, over-winding device, brake brake and automatic safety device. The problem must be dealt with in a timely manner. It is necessary to further improve the various protection devices of the transportation system and adhere to the daily mandatory maintenance. The belt conveyor and the scraper conveyor are the main transportation equipments of all units. Once the fault occurs, the production will be paralyzed and the conveyor daily must be strengthened. Maintenance and overhaul.
3. It is necessary to further improve the “six major systems†(ie safety monitoring and monitoring, personnel positioning, self-rescue of pressure, water supply rescue, emergency risk avoidance, communication system), to ensure that the system is stable and reliable, and the operation is normal.
4. The key points of the link are operation, maintenance and maintenance. If the operation is not followed, the accident will occur. If the inspection is not carried out, the hidden dangers will not be found, and the aging and wear will not be improved. Comprehensive cleaning of underground size junction boxes, electric bells, explosion-proof telephones, various operating buttons, etc., so that the qualification rate of Wuxiao Electric Appliances should reach 95%, and the explosion-proof rate should reach 100%. The maintenance of the equipment is divided into three categories: large, medium and small repair according to the different maintenance contents and workload. The equipment for mining face is adhered to the regular maintenance system. Each class has maintenance time, daily inspection and maintenance time is arranged, medium-sized maintenance is arranged every week, and large-scale production maintenance is scheduled every month. Eliminate the phenomenon of “running, running, dripping and leaking†of equipment. At the same time, measures such as placing desiccant and replacing the sealing gasket on the switch of the electromechanical device to eliminate the hidden danger caused by the tidal weight. A comprehensive physical examination of the equipment can eliminate hidden dangers inside the equipment in time, so that the equipment can operate safer and more smoothly.
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