Mining machine maintenance training

2. In short, you put the IFPs mining machine in the mine of a professional hosting enterprise, and then the hosting enterprise will provide you with power, network, mine pool, and special maintenance personnel. Of course, the price of these star cube hosting is lower than the market power. Although IPFs mining is different from BTC mining, which requires super-high computing power, and even everyone can participate in mining, e to the influence of geographical location, bandwidth resources, geographical location and other factors, indivial mining is difficult to achieve the highest income. Therefore, the highest income of mining can be achieved only by selecting legitimate enterprises that meet the national standards and managing them with the most professional team.

3. If you don't know much about mining machinery, you can use the trusteeship of today's miners. The power supply of the mine is sufficient and the maintenance is professional

4. Digyi mining is very famous and professional in the instry.

5. Sichuan is the most concentrated mining area in China, so Cheng also has a lot of mining machine maintenance points. Yinbit has a maintenance center in Cheng, which is also the official authorized maintenance of Shenma and Xindong. Shenma baonei machines can be repaired free of charge, and Xindong all series of mining machines can be repaired.

6. Don't need Oh, direct subscription contract is OK, simple and convenient operation.

7. I don't need it

8. The conditions are really not good! However, compared with poverty alleviation and peace, it is more formal ·
at least there is no money for coaches! I learned the car there. I got my driver's license in a month···

9. You take a bus to Zhangdian
bus station
, get off and take No.1 bus to Boshan station, and you will arrive in an hour.

10. Mechanical and electrical quality standardization training program
in order to improve the mechanical and electrical safety and quality standardization of our mine, let every mechanical and electrical staff be familiar with the mechanical and electrical safety and quality standardization standards, be able to go to standard posts and do standard work, ensure the mechanical and electrical equipment in good condition, safe operation without accidents, and ensure the safety proction of our mine, A comprehensive training is specially organized for the mechanical and electrical staff of the whole mine. The specific plan is as follows:
I Training contents: basic knowledge of electrician, mechanical and electrical safety and quality standardization standard of Jinmei group, 60 articles on explosion protection of Jinmei group, mechanical and electrical management system of Yuecheng coal mine Training methods: training teachers: Wang Zhongqing, Wang Gang, Liu Qingmin, Qin Yuqin, Wei Huibin
Li Yonggang, Su Changqing, Guo Liuyong, Wang discipline
3 Training time:
March 3 and April 3 (explosion-proof inspector) teacher: Qin Yuqin
March 6 and April 6 (explosion-proof inspector) teacher: Li Yonggang
March 10 and April 10 (underground monitoring and control worker) teacher: Liu Qingmin
March 13 On April 13 (underground monitoring and control worker), teacher: Wei Huibin
on March 15 (post operation standard), teacher: Guo Liuyong
on March 17 and April 7 (monitoring and control operator), teacher: Wei Huibin
on March 21 April 8 (monitoring and control operator) Instructor: Su Changqing
March 25 (post operation standard) Instructor: Wang Keji
April 11 and April 15 (safety proction regulations) Instructor: Wang Gang
April 18 (review) Instructor: Wang Zhongqing
v. training requirements: 1. Trainers should attend the training on time, Do not be late or leave early
2. Trainers must listen carefully and take notes
3. Teachers should prepare teaching plans and give lectures carefully< If necessary, the teaching plan should be in the following format:

lesson plan (teaching plan)
course Teaching class Teachers
teaching time Section Review

topics
mine power supply system and mining area power supply safety

teaching objectives and requirements
through lectures, students can understand and master the basic knowledge of coal mine power supply system; The students are required to master the basic knowledge of "three professional and two locking" and power supply in mining area

teaching process

through lectures Requirements of coal mine enterprises for power supply
1 Power load is divided into: first level load, second level load and third level load< br />2、 Rated voltage class:
(1) The high voltage shall not exceed 10000v< br />2 Low voltage not exceeding 1140V< br />3 The rated voltage of lighting signal, telephone and hand-held electrical equipment shall not exceed 127V< br />4 The rated voltage of remote control circuit shall not exceed 36V< br />3、 Basic requirements of power load on power supply:
(1) Ensure the reliability of power supply< br />2 Ensure the safety of power supply< br />3 Ensure the good quality of power supply< br />4 Ensure the economy of power supply system
2 Power supply system of mine and mining area
1 The mine power supply system
has a whole which is connected with the mine ground substation, the underground central substation, the mining area substation and the working face distribution point in a certain way, which is called the mine power supply system
according to the mine field scope, burial depth and geological conditions, the mine power supply system is divided into deep well and shallow well power supply system. If the buried depth of coal seam is more than 150m, the deep well power supply system should be adopted, and if the buried depth is less than 150m, the shallow well power supply system should be adopted. Deep well power supply system is adopted in our mine< br />2、 Neutral point operation mode of transformer
(1) Operation mode of neutral point direct grounding
(2) Operation mode of ungrounded neutral point
(3) The neutral point adopts arc suppression coil grounding operation mode
(4) The wiring modes of low-voltage distribution lines include radial type, trunk type and ring type< br />3、 Power supply system in mining area
substation in mining area is the center of power consumption in mining area. Its power supply is provided by the central substation, and its main task is to change high-voltage power into low-voltage power, and distribute this voltage to the mining face and other electrical equipment in the mining area
the location of the substation in the mining area depends on such factors as low-voltage power supply voltage, power supply distance, coal mining mode and layout of the roadway, coal geological conditions and mechanization degree. Generally, the substation in the mining area is located in the center of the electrical load in the mining area to ensure that the terminal voltage of all electrical equipment in the mining area is not less than 95% of the rated voltage of the equipment
the substation in the mining area should be well ventilated, the surrounding rock of the chamber should be firm, without water drenching, and easy to maintain
3 Requirements of coal mine safety regulations on mine power supply
1 There should be two circuit power supply lines in the mine< br />2、 There shall be no less than two circuits for the power supply lines of underground central substation, main drainage pump room and drainage pump room in mining area< br />3、 The neutral point of underground distribution transformer shall not be directly grounded. It is strictly forbidden to directly supply power to the underground by the transformer or generator directly grounded by the ground neutral point< br />4、 When there are two or more voltages in the underground low-voltage distribution system, the rated voltage value should be clearly marked on the low-voltage electrical equipment< br />5、 The mine must be provided with power distribution system diagram, underground electrical equipment layout and power, telephone, signal and other circuit plans, and filled in timely< br />6、 Electrical equipment shall not operate beyond rated value< br />7、 Before the explosion-proof electrical equipment is put into the well, its "proct certificate", "explosion-proof certificate", "safety sign of coal mine procts" and safety performance should be checked; After passing the inspection, the well can be opened
4 Safe operation system of electricity use
1 Work ticket system
2 Work permit system for high voltage operation
3 High voltage switching and test operation ticket system
4 Work monitoring system
5 Power cut and transmission system
6 Underground ten no system
7 Three no, four have, two Qi, three complete, three adhere to the system
five Safety of power supply in mining area
1 Regulations and requirements of Electromechanical chamber
2 Setting of power distribution points in working face
3 Harm of electric shock and preventive measures
4 Safety precautions to prevent electric shock in coal mine Integrity standard and maintenance quality standard of underground electrical equipment
1 The function, significance and implementation way of the integrity standard of underground electrical equipment
2 Integrity standard of underground electrical equipment
3 Matters needing attention in the installation and relocation of underground electrical equipment Stray current
1 The harm of stray current
2 Measures to prevent stray current “ Three special and two locking "
the three special are powered by separate transformers, switches and cable lines used in the substation in the mining area, without tapping other loads, so as to improve the power supply reliability of the local fan and rece the interference of other factors on the fan. The gas electric blocking device is a kind of blocking device which can automatically shut down the power supply when the gas detector in the heading face detects that the gas concentration exceeds the specified concentration, and only when the gas is reced to the specified limit (methane 1%, carbon dioxide 1.5%) can the power be transmitted; Wind power locking means that only under the condition of normal ventilation of the fan, the driving face power supply can be formally transmitted. Once the wind stops, the power supply in the working face will be cut off. Personnel were evacuated in time< br />1、 Composition and working principle
2 Function and application scope
3 “ The key point of teaching is to introce the basic knowledge of coal mine power supply system; The difficulty is to study and use the power supply management and "three professional and two locking" in the actual work, and to master it skillfully

operation arrangement
1. What grade of standard voltage is commonly used underground
2. What is "three specialties and two locks"
3. What are the requirements for wiring in the integrity standard of underground electrical equipment

Teaching Postscript