Due to the continuous improvement of the annual output of coal mines, the continuous expansion of the working surface, the increasingly complicated production conditions and production links, this puts higher and stricter requirements on the safe operation of coal mine electromechanical equipment. In recent years, the statistics of coal mine accident analysis in the country show that coal mine electromechanical accidents ranks third, and gas explosion accidents caused by electromechanical problems in coal mines account for 40% to 45% of the total number of gas explosion accidents. Therefore, it is of great practical significance to conduct a comprehensive analysis of the coal mine electromechanical management work, find out the existing deficiencies, and seek to reduce the mechanical and electrical accidents in coal mines.
1 Problems in mechanical and electrical management of coal mines
(1) The workforce is unstable and the quality of business is low.
Because coal mines are high-risk and difficult industries, the environment is poor and the risks are high. Compared with other industries, the income is low, which makes them less attractive to professional technicians and skilled workers, making it more and more difficult for coal mine recruitment, especially for technicians with work experience. Due to the disruption of the professional talents training in China's coal industry in the past few years and the change of “job changeâ€, the serious shortage of senior professionals in coal mines has been caused.
In recent years, with the increase in coal production, the demand for miners is growing, but it is difficult to recruit talents. Most of them are farmers' contract workers and rotation workers. In addition, the brain drain of the coal mine is generally a professional and technically good electromechanical talent, and multiple factors have led to a decline in the quality of the overall electromechanical team in the mine.
(2) The mechanical and electrical management system of coal mines is not perfect
According to the new coal mine electromechanical quality standardization standards, the mine should be responsible for the organic power management department and specialized management teams such as electrical, cable, small electrical equipment, and explosion-proof inspection. However, there are quite a few mines that have not paid enough attention to this. On the contrary, a large number of compressor power management personnel and professional teams are not well established. In addition, according to the standard, there are 17 basic electromechanical management systems in each mine. However, quite a number of coal mines have not established relevant systems in accordance with the regulations or, although established, they have not been strictly implemented in accordance with the system. A tool for dealing with superior inspections.
(3) Technical training for workers is not in place
Safety technology education and training is one of the important means for employees to continuously improve their safety knowledge and operational skills. Scientific Papers. Although many coal companies have their own training institutions, most of them have not played their due role, so the training effect is not obvious. The main performances are as follows: First, the training method is backward, and the theory and practice are not well combined. Second, the education form is single and boring, and the enthusiasm of employees to learn can not be mobilized. Third, the training assessment is not strict, and the examination is only in the form. Did not achieve the purpose of testing the teaching results.
(4) Super-capacity production, equipment aging, insufficient capital investment
In recent years, under the influence of the rapid economic development and the strategic position of coal as China's basic energy and important raw materials, coal production has grown rapidly. In order to maximize the interests of enterprises, coal mines often put the production task first. Not enough attention is paid to electromechanical safety. Some even electromechanical safety is placed in a position to passively cope with production and act as a supporting role. The phenomenon of “coupling†is common and there is not enough maintenance time.
Due to historical reasons, safety equipment and equipment have been owed a lot of debts. With the need for safe production of coal mines, new requirements have been put forward for these in-use equipment. Old winches in state-owned coal mines, old explosion-proof high-voltage switches, and non-replacement non-replacements There are many flame retardant tapes and old main fans. Among these equipments, the main hoist single line brake, high voltage switch protection is incomplete, the main fan can not meet the requirements of mine air volume negative pressure, there are many hidden dangers, plus the technical measurement of the equipment is not timely in these years, the test method is backward, the existing problems It is difficult to find that there are many hidden dangers.
2 Measures for improvement of coal mine electromechanical management
(1) Strict implementation of electromechanical management system
The coal mine shall formulate all management systems in accordance with the provisions of the coal mine standardization standards, and strictly implement the established system, especially the post responsibility system of workers. Scientific Papers. Mechanical and electrical equipment maintenance personnel and operators are all special types of jobs. To ensure the normal and safe operation of equipment, we must first improve the responsibility of equipment maintenance personnel and equipment operators. The same equipment, the same use environment, responsible and unresponsible personnel to operate the equipment, the effect is very different. When responsible personnel operate the equipment, they can strictly observe the operating procedures of the equipment, operate the equipment frequently, clean the dust around the equipment and the equipment, keep the equipment clean, and always observe the operation of the equipment. If abnormal phenomena are found, it can stop in time. Call maintenance personnel to the site to check and repair, and eliminate hidden troubles in time.
Strictly implement the post responsibility system of equipment maintenance personnel and equipment operators, and link with economic interests, quantitatively manage various management measures, and the scope of equipment responsibility of maintenance personnel and operators by the mine electromechanical management function department every month. The inspection and acceptance shall be carried out, and the equipment integrity rate shall be rewarded according to the specified requirements, and the equipment integrity rate shall not meet the requirements for punishment. Dynamic management of equipment maintenance and use, mechanical and electrical management functional departments should often go deep into the underground to check the use and maintenance of monitoring equipment, once the explosion-proof electrical equipment is detected, the relevant personnel should be investigated for responsibility, not to use the equipment operating procedures. If the equipment causes damage to the equipment, the responsibility of the user and the operator shall be investigated.
(2) Strengthen the amateur training for employees
People are the carrier of science and technology, and can play a role in controlling, using, maintaining and managing electromechanical equipment. We must do technical training for electromechanical personnel, improve the quality standardization awareness of all electromechanical personnel, and carry out work according to standardization requirements. This requires us to focus on the long-term overall situation of the enterprise, to train a group of senior technicians, chief engineers, professional and technical top talents, the combination of amateur training and off-the-job training, the combination of full-time training and key training, and the combination of internal training and external training. Intensive training for new workers, new positions, and new technologies. Conditional enterprises can also use the skill wages of all employees to divide the salary level and guide the majority of technicians to learn the knowledge of electromechanical business spontaneously.
(3) Increase capital investment in new equipment
It is necessary to strive for the support of the National Policy-safety Special Fund, adopt various forms of fund-raising and financing, make plans against the Coal Mine Safety Regulations and relevant industry standards, and ensure the normal operation and renewal of the necessary production equipment and safety monitoring equipment of the coal mine. In the replacement, equipments with different protection devices, such as hoist winches and dry-type transformers, must be protected or replaced in accordance with the requirements of the “Safety Regulations for Coal Minesâ€. It is necessary to ensure the entry and maintenance of good equipment, ensure the use and maintenance of equipment according to the standard requirements, and resolutely put an end to the abuse of counterfeit mechanical and electrical products, non-coal safety mark products and non-explosion-proof products in coal mines, and eliminate the source of accidents from the source.
(4) Strengthen equipment maintenance management
Promote the concept of preventive maintenance and flexible maintenance management to achieve mechanical and electrical integration. Implement preventive maintenance to achieve "three unifications": the maintenance plan is uniformly reported, unified preparation, and unified implementation. Scientific Papers. Equipment maintenance and repair to achieve "four integration", that is, the implementation of mechanical and electrical equipment dynamic and static preventive maintenance responsibility system, mechanical and electrical equipment planning maintenance and flexible maintenance combined, parts site management and reasonable reserves combined to carry out fault diagnosis and state detection Combine. Realize dynamic monitoring of equipment, mandatory maintenance, and timely maintenance. To be on duty in the shift, "small faults do not shift", "big faults do not stay overnight", do not let the equipment "sick" operation, so that active equipment maximizes its role. Effectively reduce the electromechanical failure rate.
3 Conclusion
In the modern high-yield and high-efficiency coal mine construction, the concept of coal mine electromechanical safety management is established to earnestly implement the relevant national regulations to ensure the safe operation of electromechanical equipment and achieve the goal of high productivity and high efficiency of coal mines. The mechanical and electrical safety management of coal mines should be continuously analyzed and continuously improved in actual production so as to keep pace with the development of modern coal mines.
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