Miner fixing
Publish: 2021-04-18 04:35:19
1.
Specific steps:
< UL >first of all, we need to find a mine pool which is easy to operate and proces stable output. The role of the mine pool is to subdivide the data packets for each terminal. We can pay the corresponding amount of bitcoin according to the proportion of the data packets calculated by the terminal through the precise algorithm
2. The purpose of mining is to package the transaction block. If the package is successful, you will open a new package and get a 25 bitcoin reward, as well as the handling charge for the future transactions added to the package
then other miners will start to package the transaction generated by your new package until the next package comes out first
in the future, the mining capacity of bitcoin will be small or even zero. You still have transaction fees. The system will always need miners, and mining machines will still exist.
then other miners will start to package the transaction generated by your new package until the next package comes out first
in the future, the mining capacity of bitcoin will be small or even zero. You still have transaction fees. The system will always need miners, and mining machines will still exist.
3.
Bitcoin mining machine is a kind of computer used to earn bitcoin. This kind of computer generally has professional mining chips and works in the way of burning graphics card, which consumes a lot of power. It is one of the ways to get bitcoin that users download software from personal computer and then run specific algorithm to get corresponding bitcoin after communicating with remote server
mining is actually a competition of performance and equipment, and a competition of computing power among miners. Miners with more computing power are more likely to dig bitcoin. With the increase of computing power in the whole network, it is more and more difficult to dig bits with traditional devices (CPU, GPU). People have developed chips specially used for mining. Chip is the core part of mining machine. The process of chip operation will proce a lot of heat, in order to cool down, bitcoin miner is generally equipped with heat sink and fan
bitcoin is a kind of virtual currency. Bitcoin mining system is the process of carrying out mathematical operation for bitcoin network through computer hardware. Miners who provide services can get a reward, because the network reward is calculated according to the tasks completed by miners, so the competition for mining is very fierce
bitcoin mining started with low-cost hardware such as CPU or GPU, but with the popularity of bitcoin, the mining process has changed greatly. Nowadays, the mining activities are transferred to the field programmable gate array, and the hash speed can be achieved through optimization. The mining efficiency of this mode is very high
4. Bitcoin is a kind of cryptocurrency based on decentralization, using peer-to-peer network and consensus initiative, open source, and blockchain as the underlying technology. The concept of bitcoin was first proposed by Nakamoto on November 1, 2008, and was officially born on January 3, 2009. Unlike all currencies, bitcoin does not rely on a specific currency institution to issue. It is generated by a large number of calculations based on a specific algorithm. Bitcoin economy uses a distributed database composed of many nodes in the whole P2P network to confirm and record all transactions, and uses cryptography design to ensure the security of all aspects of money circulation. The decentralized nature and algorithm of P2P can ensure that it is impossible to artificially manipulate the value of bitcoin through mass proction. The design based on cryptography can make bitcoin only be transferred or paid by the real owner. This also ensures the anonymity of money ownership and circulation transactions. The biggest difference between bitcoin and other virtual currencies is that the total amount of bitcoin is very limited and it has a strong scarcity
warm tips:
1. The above explanations are for reference only, without any suggestions
2. Before investing, it is recommended that you first understand the risks existing in the project, and clearly understand the investors, investment institutions, chain activity and other information of the project, rather than blindly investing or mistakenly entering the capital market. Investment is risky, so we should be cautious when entering the market
response time: November 30, 2020. Please refer to the official website of Ping An Bank for the latest business changes
[Ping An Bank I know] want to know more? Come and see "Ping An Bank I know" ~
https://b.pingan.com.cn/paim/iknow/index.html
warm tips:
1. The above explanations are for reference only, without any suggestions
2. Before investing, it is recommended that you first understand the risks existing in the project, and clearly understand the investors, investment institutions, chain activity and other information of the project, rather than blindly investing or mistakenly entering the capital market. Investment is risky, so we should be cautious when entering the market
response time: November 30, 2020. Please refer to the official website of Ping An Bank for the latest business changes
[Ping An Bank I know] want to know more? Come and see "Ping An Bank I know" ~
https://b.pingan.com.cn/paim/iknow/index.html
5.
Mining needs high-end graphics card, mining equipment is the first to eliminate NV graphics card. Mining must be done with graphics cards. The overall structure of mining equipment and ordinary PC machine is different is the number of graphics cards. You can install four or eight through pic extension
after expansion, an expansion shelf needs to be made. To fix the graphics card and other equipment, we need to get some fans on the shelf to cool the graphics card
CPU is not very important. But not lower than i5< br />
6. If you want to dig a mine, you should understand these first, and then decide whether to join the army of miners or not
as a miner, I used graphics card very early and then butterfly machine. At present, I use Avalon's 220 miner and just received a new 180 ant miner. To tell you the truth, mining is not as simple as you think. Here I will list some practical difficulties you need to face in mining. If you find that some of these items can't be solved and overcome for the time being, don't rush to buy a miner, because from the moment you buy, if you can't mine, Then you will face a real loss
first, list the problems to face
1, be able to accept the noise - the noise of the mining machine is very loud, which is equivalent to that you put the air conditioner outside the room
1-1, strong hands-on ability - the noise can be controlled to a certain extent by adding water cooling, but it needs to be done by yourself. The installation process of water cooling is not as simple as the online tutorial. It needs to be extremely careful. The capacitor on the logic board is easy to touch, and it must be successful at one time. Once the refrigerant is added, the machine will have problems again, It would be disastrous to dismantle the water cooling system
1-2, conditional repair of the chip capacitor - in the process of water cooling installation, the capacitor is easy to fall off, these chip capacitors are very difficult to weld
2, you can set up the network - you can't just plug in the Internet cable! Need to understand the routing, know how to change the IP of the router, mining IP is fixed, according to mining IP to do settings
2-1, you can get a fixed IP address - if you are mining in a company, you can't set up a route, so you must have the condition to get a fixed IP, and then set up your own network through this IP
3. The environment of continuous power supply and continuous network - mining is a 24-hour business. Don't take it for granted that a meeting is OK in one day. Many companies will cut off power at midnight. This must be made clear
3-1. In low temperature environment, in addition to 24-hour continuous power supply, there should also be a relatively cold environment. In actual mining, we can clearly feel the importance of temperature for mining<
let's assume two scenarios,
in the company:
if your working environment is very quiet, it is not suitable, even if water cooling is installed. If you are a senior blue collar, in the workshop, do you have the conditions to set up the network and get a fixed IP? If you can't, give up
at home:
can you stand noise? Can tolerate to a certain extent
is it possible to install water cooling? It can be installed conditionally
is it possible to set up a network? There are also conditions to set up the network
is it warm in that room? Yes, but you can open windows on the second bedroom or balcony
is it possible to pull the wire and the wiring board in the balcony? No problem
congratulations, you can buy a miner to dig it up, but if one of them doesn't work, you need to think carefully before making a decision
the above-mentioned points should not be taken as unimportant or major problems. For example, it is necessary to have the conditions to install water cooling, for example, in a lower temperature environment, for example, to have a fixed IP
when the miner starts to operate and makes a rumbling sound, if you are in the company, you have to turn it off awkwardly. If you are at home, you need to figure out how to explain to your family or girlfriend that the noise will exist for 24 hours, and hope they don't mind
if your home is warm, your miner will never be able to achieve the highest computing power it can. You must accept it calmly, don't be depressed, it's useless to find the seller. Unless you open the window to let in the cold air, you will find that you and the miner are so out of place. That's why laomaozi is very fond of mining< Make complaints about mobile phone, br / > and if you work hard to move the mine to the company, you may think that the electricity charge is in the whole province. You can't get the mine to connect. Then you can only move the mine to home or sell it as a second-hand machine...
these words are typed word by word by me. I hope it can help you. You must find out whether you are qualified to do this at present. As for how to dig, it's a very simple thing: buy a miner, register an account on a mining website, Download a multibit to store the bitcoin you get, and link the miner to the network for power on, Set up the network, give it the fixed IP specified on the chassis, use the computer to access the IP, make some simple settings, and then wait for the receipt
what else can I ask you
as a miner, I used graphics card very early and then butterfly machine. At present, I use Avalon's 220 miner and just received a new 180 ant miner. To tell you the truth, mining is not as simple as you think. Here I will list some practical difficulties you need to face in mining. If you find that some of these items can't be solved and overcome for the time being, don't rush to buy a miner, because from the moment you buy, if you can't mine, Then you will face a real loss
first, list the problems to face
1, be able to accept the noise - the noise of the mining machine is very loud, which is equivalent to that you put the air conditioner outside the room
1-1, strong hands-on ability - the noise can be controlled to a certain extent by adding water cooling, but it needs to be done by yourself. The installation process of water cooling is not as simple as the online tutorial. It needs to be extremely careful. The capacitor on the logic board is easy to touch, and it must be successful at one time. Once the refrigerant is added, the machine will have problems again, It would be disastrous to dismantle the water cooling system
1-2, conditional repair of the chip capacitor - in the process of water cooling installation, the capacitor is easy to fall off, these chip capacitors are very difficult to weld
2, you can set up the network - you can't just plug in the Internet cable! Need to understand the routing, know how to change the IP of the router, mining IP is fixed, according to mining IP to do settings
2-1, you can get a fixed IP address - if you are mining in a company, you can't set up a route, so you must have the condition to get a fixed IP, and then set up your own network through this IP
3. The environment of continuous power supply and continuous network - mining is a 24-hour business. Don't take it for granted that a meeting is OK in one day. Many companies will cut off power at midnight. This must be made clear
3-1. In low temperature environment, in addition to 24-hour continuous power supply, there should also be a relatively cold environment. In actual mining, we can clearly feel the importance of temperature for mining<
let's assume two scenarios,
in the company:
if your working environment is very quiet, it is not suitable, even if water cooling is installed. If you are a senior blue collar, in the workshop, do you have the conditions to set up the network and get a fixed IP? If you can't, give up
at home:
can you stand noise? Can tolerate to a certain extent
is it possible to install water cooling? It can be installed conditionally
is it possible to set up a network? There are also conditions to set up the network
is it warm in that room? Yes, but you can open windows on the second bedroom or balcony
is it possible to pull the wire and the wiring board in the balcony? No problem
congratulations, you can buy a miner to dig it up, but if one of them doesn't work, you need to think carefully before making a decision
the above-mentioned points should not be taken as unimportant or major problems. For example, it is necessary to have the conditions to install water cooling, for example, in a lower temperature environment, for example, to have a fixed IP
when the miner starts to operate and makes a rumbling sound, if you are in the company, you have to turn it off awkwardly. If you are at home, you need to figure out how to explain to your family or girlfriend that the noise will exist for 24 hours, and hope they don't mind
if your home is warm, your miner will never be able to achieve the highest computing power it can. You must accept it calmly, don't be depressed, it's useless to find the seller. Unless you open the window to let in the cold air, you will find that you and the miner are so out of place. That's why laomaozi is very fond of mining< Make complaints about mobile phone, br / > and if you work hard to move the mine to the company, you may think that the electricity charge is in the whole province. You can't get the mine to connect. Then you can only move the mine to home or sell it as a second-hand machine...
these words are typed word by word by me. I hope it can help you. You must find out whether you are qualified to do this at present. As for how to dig, it's a very simple thing: buy a miner, register an account on a mining website, Download a multibit to store the bitcoin you get, and link the miner to the network for power on, Set up the network, give it the fixed IP specified on the chassis, use the computer to access the IP, make some simple settings, and then wait for the receipt
what else can I ask you
7.
As of July 24, 2020, the state has not issued any laws to prove that bitcoin mining machine is illegal
bitcoin mining machine is one of the ways to obtain bitcoin. Bitcoin is a kind of network virtual currency proced by open source P2P software
it doesn't rely on the issuance of specific monetary institutions, and it is generated through a large number of calculations of specific algorithms. Bitcoin economy uses a distributed database composed of many nodes in the whole P2P network to confirm and record all transactions. The decentralized nature and algorithm of P2P can ensure that it is impossible to artificially manipulate the value of bitcoin through mass proction
extended data
the issue and transaction of bitcoin are realized by mining, and it is cast at a certain but slowing rate. Each new block is accompanied by a certain number of new bitcoin from scratch, which is used as a coinbase transaction to reward the miners who find the block
the reward for each block is not fixed. For every 210000 blocks mined, it takes about four years, and the currency issuance rate is reced by 50%. In the first four years of bitcoin's operation, each block created 50 new bitcoins. Each block creates 12.5 new bitcoins. In addition to the block award, the miner will receive a handling fee for all transactions within the block<
source: Internet - bitcoin mining machine
8. Nakamoto once said that the number of bitcoins is fixed at 21 million. Since the bitcoin was g out, the price has been high. However, with more and more miners, we all see the fat of blockchain mining. Mining is naturally more and more difficult, so it is very important to choose a good miner. At present, the mainstream miner is ASIC miner, graphics card miner, GPU miner, storage miner. Specifically, we need to find a professional mining platform to ask, such as jinhoe mining, professional mining platform, each miner model should have it, you can try to ask.
9. It's OK. I have a fixed income for more than a month
10. Large fixed equipment management system
a lifting equipment
1, the maximum braking oil pressure of the hydraulic station should be adjusted according to the maximum actual tension difference, after careful calculation. When the hoisting system changes, it should be recalculated and set. The setting data should be filed after being approved by the chief of mechanical and electrical section, deputy chief of mechanical and electrical department, and chief of mechanical and electrical mine. The secondary braking oil pressure shall meet the requirements of safety braking deceleration specified in "coal mine safety regulations". The hydraulic system can not be changed at will, and the change must be submitted to the Ministry of mechanical and electrical transportation for approval
2. According to the service life of brake disc spring is 500000 cycles, according to the actual lifting situation, the replacement cycle of disc spring in main shaft is 15 months, and that in auxiliary shaft is 2 years. The disc spring should be replaced in pairs ring maintenance and replacement
3. The brake disc must be clean and free of oil stain. If the brake shoe clearance does not meet the requirements, it should be adjusted in time. When adjusting, it is necessary to lock the drum with the locking device. It is strictly prohibited to adjust the brake shoe clearance ring the operation of the winch.
4. After adjusting the disc brake clearance, the turn spacing of the return spring should be readjusted, and the spacing should be 1-1.5mm; After adjusting the clearance of translation brake, there should be 4mm space between connecting plate and brake seat
5. When checking the brake every day, pay attention to the sudden change of brake clearance. When the brake clearance changes suddenly, check the condition of disc spring
6. The hydraulic automatic compensation device must be sensitive and reliable and tested once a month. Check the brake disc spring at least once a season, and make records carefully
in order to implement the responsibility, the records should be standardized: the records include maintenance personnel, responsible personnel, recording personnel, time, place, technical parameters, etc
7. For the brake with return spring, the disc spring break monitoring switch must be installed, and the contact shall be connected in series to the signal circuit. When the brake shoe clearance suddenly increases, check whether the disc spring is broken
8. When adjusting the rope or repairing the rope adjusting cylinder, the lifting container corresponding to the movable drum should be at the bottom loading position, and the lifting container corresponding to the dead drum should be at the wellhead parking position
9. The filter element and filter screen of the hydraulic station shall be cleaned once a quarter, the valve core shall be cleaned once a half year, the brake oil pipe shall be cleaned once a year, the hydraulic oil shall be replaced once a half year, and the recer oil shall be replaced once a year
10. When lowering heavy objects, electric braking should be put into operation. When the working brake is involved in braking, the temperature rise of brake shoe should be paid attention to, so as to avoid high temperature of brake shoe, rece friction coefficient and affect braking torque. It is strictly forbidden to lower heavy objects when the electric braking system is not perfect
11. The electric braking closed-loop system and the adjustable braking closed-loop system should be sensitive and reliable to ensure that the deceleration meets the design requirements
12. The skip in the main shaft must be loaded with fixed weight, and it is strictly forbidden to load more blindly, which may cause serious accidents
13. In case of no emergency, safety braking shall not be used ring operation
14. When someone enters the drum for operation, the motor control panel must be switched off and power off, and special person shall be assigned to supervise
15. The hoisting motor is switched with the standby motor once every two years, and the brake oil pump and lubricating oil pump are switched with the standby pump once a month
16. The replaced equipment should be repaired in time. It is strictly forbidden to dismantle the spare parts and use them for other purposes. The integrity of the equipment should be ensured. In summer, it is necessary to determine whether to dry the standby motor by current method according to the insulation resistance, and conct withstand voltage test if necessary. When the accumulated operation time of the motor reaches two years, in addition to routine inspection and measurement, it is also necessary to check the wear of the journal and bearing, the fixation of the winding, the looseness of the wiring, the bending of the shaft, etc., and make records and store them in the equipment management file
17. The selection and calculation of lifting wire rope must be submitted to the Ministry of mechanical and electrical transportation for approval. The mechanical and electrical transportation department, the supply company and the mine jointly select the manufacturer
18. The diameter, lay direction and contact mode of wire rope shall be rechecked after arrival. The steel wire rope must be tested according to the relevant provisions of the "coal mine safety regulations". The steel wire rope of mixed hoisting shall be inspected once before suspension and once every six months thereafter; The main shaft hoisting wire rope shall be inspected once before suspension, once every 12 months since suspension, and once every 6 months thereafter
19. Safety technical measures shall be taken when replacing the lifting wire rope, and dead bending of the new rope is strictly prohibited. The daily inspection system must be strictly implemented for the lifting wire rope in use, especially for the inspection of the tangent point between the wire rope and the crown wheel and the roller in the parking lot. The nondestructive inspection shall be carried out regularly with the wire rope flaw detector. If necessary, the inspection shall be carried out once a day. If any mutation is found, it shall be replaced immediately
20. The lifting wire rope in use should be staggered regularly, and the wrong rope date and length should be recorded. The rope groove diameter of the main lifting device crown pulley shall be measured once a year to ensure that the rope groove diameter is greater than 7.5-15% of the rope diameter. If not, the crown pulley shall be cut or replaced
21. After three months of operation, the lifting wire rope should be oiled once a month
22. Mercury contact switch shall be used to replace mechanical pressure contact switch for loose rope protection device of lifting wire rope. In order to prevent misoperation caused by wire rope jumping, there should be a delay of more than 0.5 seconds between the rope loosening protection device and the safety circuit
23. According to the corrosion degree, the derrick and shaft equipment shall be treated with anti-corrosion treatment in time, and reinforced or replaced if necessary
24. The hoisting and hanging device and anti falling device shall be inspected once a day, the linkage test of each part of anti falling device shall be concted once a week, and the brake rope and buffer rope of auxiliary shaft anti falling device shall be inspected once a week. The inspection and test shall be recorded, and the date of putting wedge connection device into use must be indicated in the record. Safety technical measures shall be formulated for replacement of coupling device
25. The test of cage Arrestor in vertical shaft must comply with the provisions of technical documents of the equipment. If there are no provisions, the test shall be concted according to the following provisions:
1) static test of brake rope arrestor. The distance of the arrestor sliding down along the brake rope shall not exceed 40mm< (2) in the decoupling test of the brake rope type fall arrester, the relative falling height of the catcher to the brake rope shall not exceed 100 mm< (3) for the decoupling test of the brake rope type fall preventer or the plug-in fall preventer of the wooden tank way, the falling height of the cage to the derrick shall not exceed 400mm< When the cage is loaded, the length of the buffer rope must be 1-1.3 times of the free falling height of the catcher. The non decoupling test shall be carried out every 6 months and once a year. Anti pier and anti-collision device must be tested once a year
26. The lifting system of main and auxiliary shafts should realize the TV monitoring of the wellhead and bottom of the shaft by the driver to ensure normal use
27. The winch must be tested regularly. The test period of auxiliary shaft is one year, and that of main shaft is three years< 2. Ventilation equipment
1. The mine ventilation Department should provide the mechanical and electrical department with scientific air distribution according to the needs of mining, and the mine mechanical and electrical department should adjust the working condition of the fan according to the air distribution. The working condition of the fan should be in the instrial utilization area, and it is strictly forbidden to operate the fan under high negative pressure
2. The fan room should have the records of switching, reverse air and fan condition adjustment, in which the time of switching, reverse air, condition adjustment and the changes of various parameters must be indicated
3. The running fan should be switched with the standby fan once a month, and the switched fan should be repaired and maintained in time. When entering the fan for internal inspection, the power supply of the fan must be disconnected, the power failure sign must be hung, and a special person shall be assigned to take care of it. If there is a brake device, the brake must be reliable. If there is no brake device, measures shall be taken to prevent the impeller from rotating
4. When the axial-flow and reverse wind are applied to the cyclone, the fan must be stopped stably, and the reverse power transmission shall be carried out after the brake device is released
5. Check the air door winch, power supply line and electric control system once a month to ensure flexible and reliable operation of the winch
6. Check the reverse ventilation facilities at least once a quarter; Under normal circumstances, the anti air drill should be carried out once a year. If the mine ventilation system has great changes, the anti air drill should be carried out once a year. The explosion-proof door shall be inspected and repaired every 6 months
7. The wire rope for pulling or hanging the damper must be replaced when the broken wire of one lay exceeds 25%
8. The air door and explosion-proof door should be maintained frequently, opened and closed flexibly, and the air leakage must be strictly controlled. The external air leakage rate should not exceed 5% without lifting equipment, and should not exceed 15% with lifting equipment
9. Except for emergency shutdown, the fan switching must be approved by the chief engineer of the mine
10. The technical performance test of the fan is concted every three years
11. It is forbidden to connect "t" to other loads in the power supply line of the air shaft, and it is not allowed to connect other loads to the bus section of the fan in the air shaft substation. Under normal circumstances, it is strictly forbidden to cross the fan and the line
12. All kinds of protection devices of the distribution board of the wind shaft substation must be set once a year to ensure that all kinds of electrical protection actions are sensitive and reliable
III. the drainage equipment shall be implemented according to the water pump management system
IV. boilers, compressed air and lifting equipment shall be implemented according to the special equipment management system
v. the management of general parts and general equipment shall be carried out according to the equipment management system
VI. punishment measures: all inspection and test record reports required by this system shall be inspected once a month. If they are not filled in or filled out in a non-standard way, they will be fined 50 yuan each time. Those who violate the above regulations will be fined 200 yuan for one time and ordered to correct and deal with immediately. Otherwise, the equipment will stop running. If the machine is forced to operate, the responsible person shall be punished as illegal operation, and the responsible unit shall be fined 200-500 yuan / time< Since April 25, 2007, this system has been implemented under the supervision of mechanical and electrical department, safety and quality department and dispatching room
a lifting equipment
1, the maximum braking oil pressure of the hydraulic station should be adjusted according to the maximum actual tension difference, after careful calculation. When the hoisting system changes, it should be recalculated and set. The setting data should be filed after being approved by the chief of mechanical and electrical section, deputy chief of mechanical and electrical department, and chief of mechanical and electrical mine. The secondary braking oil pressure shall meet the requirements of safety braking deceleration specified in "coal mine safety regulations". The hydraulic system can not be changed at will, and the change must be submitted to the Ministry of mechanical and electrical transportation for approval
2. According to the service life of brake disc spring is 500000 cycles, according to the actual lifting situation, the replacement cycle of disc spring in main shaft is 15 months, and that in auxiliary shaft is 2 years. The disc spring should be replaced in pairs ring maintenance and replacement
3. The brake disc must be clean and free of oil stain. If the brake shoe clearance does not meet the requirements, it should be adjusted in time. When adjusting, it is necessary to lock the drum with the locking device. It is strictly prohibited to adjust the brake shoe clearance ring the operation of the winch.
4. After adjusting the disc brake clearance, the turn spacing of the return spring should be readjusted, and the spacing should be 1-1.5mm; After adjusting the clearance of translation brake, there should be 4mm space between connecting plate and brake seat
5. When checking the brake every day, pay attention to the sudden change of brake clearance. When the brake clearance changes suddenly, check the condition of disc spring
6. The hydraulic automatic compensation device must be sensitive and reliable and tested once a month. Check the brake disc spring at least once a season, and make records carefully
in order to implement the responsibility, the records should be standardized: the records include maintenance personnel, responsible personnel, recording personnel, time, place, technical parameters, etc
7. For the brake with return spring, the disc spring break monitoring switch must be installed, and the contact shall be connected in series to the signal circuit. When the brake shoe clearance suddenly increases, check whether the disc spring is broken
8. When adjusting the rope or repairing the rope adjusting cylinder, the lifting container corresponding to the movable drum should be at the bottom loading position, and the lifting container corresponding to the dead drum should be at the wellhead parking position
9. The filter element and filter screen of the hydraulic station shall be cleaned once a quarter, the valve core shall be cleaned once a half year, the brake oil pipe shall be cleaned once a year, the hydraulic oil shall be replaced once a half year, and the recer oil shall be replaced once a year
10. When lowering heavy objects, electric braking should be put into operation. When the working brake is involved in braking, the temperature rise of brake shoe should be paid attention to, so as to avoid high temperature of brake shoe, rece friction coefficient and affect braking torque. It is strictly forbidden to lower heavy objects when the electric braking system is not perfect
11. The electric braking closed-loop system and the adjustable braking closed-loop system should be sensitive and reliable to ensure that the deceleration meets the design requirements
12. The skip in the main shaft must be loaded with fixed weight, and it is strictly forbidden to load more blindly, which may cause serious accidents
13. In case of no emergency, safety braking shall not be used ring operation
14. When someone enters the drum for operation, the motor control panel must be switched off and power off, and special person shall be assigned to supervise
15. The hoisting motor is switched with the standby motor once every two years, and the brake oil pump and lubricating oil pump are switched with the standby pump once a month
16. The replaced equipment should be repaired in time. It is strictly forbidden to dismantle the spare parts and use them for other purposes. The integrity of the equipment should be ensured. In summer, it is necessary to determine whether to dry the standby motor by current method according to the insulation resistance, and conct withstand voltage test if necessary. When the accumulated operation time of the motor reaches two years, in addition to routine inspection and measurement, it is also necessary to check the wear of the journal and bearing, the fixation of the winding, the looseness of the wiring, the bending of the shaft, etc., and make records and store them in the equipment management file
17. The selection and calculation of lifting wire rope must be submitted to the Ministry of mechanical and electrical transportation for approval. The mechanical and electrical transportation department, the supply company and the mine jointly select the manufacturer
18. The diameter, lay direction and contact mode of wire rope shall be rechecked after arrival. The steel wire rope must be tested according to the relevant provisions of the "coal mine safety regulations". The steel wire rope of mixed hoisting shall be inspected once before suspension and once every six months thereafter; The main shaft hoisting wire rope shall be inspected once before suspension, once every 12 months since suspension, and once every 6 months thereafter
19. Safety technical measures shall be taken when replacing the lifting wire rope, and dead bending of the new rope is strictly prohibited. The daily inspection system must be strictly implemented for the lifting wire rope in use, especially for the inspection of the tangent point between the wire rope and the crown wheel and the roller in the parking lot. The nondestructive inspection shall be carried out regularly with the wire rope flaw detector. If necessary, the inspection shall be carried out once a day. If any mutation is found, it shall be replaced immediately
20. The lifting wire rope in use should be staggered regularly, and the wrong rope date and length should be recorded. The rope groove diameter of the main lifting device crown pulley shall be measured once a year to ensure that the rope groove diameter is greater than 7.5-15% of the rope diameter. If not, the crown pulley shall be cut or replaced
21. After three months of operation, the lifting wire rope should be oiled once a month
22. Mercury contact switch shall be used to replace mechanical pressure contact switch for loose rope protection device of lifting wire rope. In order to prevent misoperation caused by wire rope jumping, there should be a delay of more than 0.5 seconds between the rope loosening protection device and the safety circuit
23. According to the corrosion degree, the derrick and shaft equipment shall be treated with anti-corrosion treatment in time, and reinforced or replaced if necessary
24. The hoisting and hanging device and anti falling device shall be inspected once a day, the linkage test of each part of anti falling device shall be concted once a week, and the brake rope and buffer rope of auxiliary shaft anti falling device shall be inspected once a week. The inspection and test shall be recorded, and the date of putting wedge connection device into use must be indicated in the record. Safety technical measures shall be formulated for replacement of coupling device
25. The test of cage Arrestor in vertical shaft must comply with the provisions of technical documents of the equipment. If there are no provisions, the test shall be concted according to the following provisions:
1) static test of brake rope arrestor. The distance of the arrestor sliding down along the brake rope shall not exceed 40mm< (2) in the decoupling test of the brake rope type fall arrester, the relative falling height of the catcher to the brake rope shall not exceed 100 mm< (3) for the decoupling test of the brake rope type fall preventer or the plug-in fall preventer of the wooden tank way, the falling height of the cage to the derrick shall not exceed 400mm< When the cage is loaded, the length of the buffer rope must be 1-1.3 times of the free falling height of the catcher. The non decoupling test shall be carried out every 6 months and once a year. Anti pier and anti-collision device must be tested once a year
26. The lifting system of main and auxiliary shafts should realize the TV monitoring of the wellhead and bottom of the shaft by the driver to ensure normal use
27. The winch must be tested regularly. The test period of auxiliary shaft is one year, and that of main shaft is three years< 2. Ventilation equipment
1. The mine ventilation Department should provide the mechanical and electrical department with scientific air distribution according to the needs of mining, and the mine mechanical and electrical department should adjust the working condition of the fan according to the air distribution. The working condition of the fan should be in the instrial utilization area, and it is strictly forbidden to operate the fan under high negative pressure
2. The fan room should have the records of switching, reverse air and fan condition adjustment, in which the time of switching, reverse air, condition adjustment and the changes of various parameters must be indicated
3. The running fan should be switched with the standby fan once a month, and the switched fan should be repaired and maintained in time. When entering the fan for internal inspection, the power supply of the fan must be disconnected, the power failure sign must be hung, and a special person shall be assigned to take care of it. If there is a brake device, the brake must be reliable. If there is no brake device, measures shall be taken to prevent the impeller from rotating
4. When the axial-flow and reverse wind are applied to the cyclone, the fan must be stopped stably, and the reverse power transmission shall be carried out after the brake device is released
5. Check the air door winch, power supply line and electric control system once a month to ensure flexible and reliable operation of the winch
6. Check the reverse ventilation facilities at least once a quarter; Under normal circumstances, the anti air drill should be carried out once a year. If the mine ventilation system has great changes, the anti air drill should be carried out once a year. The explosion-proof door shall be inspected and repaired every 6 months
7. The wire rope for pulling or hanging the damper must be replaced when the broken wire of one lay exceeds 25%
8. The air door and explosion-proof door should be maintained frequently, opened and closed flexibly, and the air leakage must be strictly controlled. The external air leakage rate should not exceed 5% without lifting equipment, and should not exceed 15% with lifting equipment
9. Except for emergency shutdown, the fan switching must be approved by the chief engineer of the mine
10. The technical performance test of the fan is concted every three years
11. It is forbidden to connect "t" to other loads in the power supply line of the air shaft, and it is not allowed to connect other loads to the bus section of the fan in the air shaft substation. Under normal circumstances, it is strictly forbidden to cross the fan and the line
12. All kinds of protection devices of the distribution board of the wind shaft substation must be set once a year to ensure that all kinds of electrical protection actions are sensitive and reliable
III. the drainage equipment shall be implemented according to the water pump management system
IV. boilers, compressed air and lifting equipment shall be implemented according to the special equipment management system
v. the management of general parts and general equipment shall be carried out according to the equipment management system
VI. punishment measures: all inspection and test record reports required by this system shall be inspected once a month. If they are not filled in or filled out in a non-standard way, they will be fined 50 yuan each time. Those who violate the above regulations will be fined 200 yuan for one time and ordered to correct and deal with immediately. Otherwise, the equipment will stop running. If the machine is forced to operate, the responsible person shall be punished as illegal operation, and the responsible unit shall be fined 200-500 yuan / time< Since April 25, 2007, this system has been implemented under the supervision of mechanical and electrical department, safety and quality department and dispatching room
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