Miner inspection
Publish: 2021-05-28 13:25:52
1. In the first cycle, bitcoin miners can enter the bed pool to grab the first mine. If the head mine has 1000 S9 units participating in mining, according to one block every 10 minutes, each block will be awarded 50 coins, and about 7200 bed will be proced in 24h. On average, one S9 miner will proce about 7.2 bed coins in 24h, and the specific income will be based on the actual participating mining capacity. At present, the computing power of BTC is 149.25eh/s, which is equivalent to the computing power of 10 million S9 machines. If 1% of BTC's computing power participates in bed mining in the future, it will also reach the scale of 100000 S9 units, then the amount of coins g will be only 1% of the amount of bed coins g by the current head mine. The current price of BTC is about ￥ 76000 yuan, so there is a lot of room for the price imagination of bed.
2. Second hand hardware is safer to go to physical stores. Although online stores are cheaper, they are really not safe. There are too many routines. Of course, physical stores also have a lot of routines, all of which are face-to-face inspection, so it is difficult to cheat.
3. Electromechanical Safety Quality Standardization standard and assessment score table
total score of mine:
serial number Inspection items Assessment and scoring method Standard
score Actual score The reasons for dection
total one hundred
one Equipment and index thirty < br />1 The mechanical and electrical equipment must have the proct certificate, the coal mine proct safety mark, and the explosion-proof equipment must have the explosion-proof certificate On site inspection, if one is found unqualified, no score will be given five < br />2 The intact rate of mechanical and electrical equipment in the whole mine is 90% For on-site inspection, 0.5 points will be dected for every 1% rection five < br />3 The large fixed equipment in use is in good condition 1.5 points will be dected if one is not in good condition ring on-site inspection three < br />4 Explosion proof rate of explosion-proof electrical equipment and small electrical appliances is 100% No score will be given if one set (piece) is found to be lost ring on-site inspection five < br />5 The qualified rate of small electrical appliances is 95% For on-site inspection, 0.5 points will be dected for every 1% rection two < br />6 The qualified rate of cable hanging is 95% For on-site inspection, 0.5 points will be dected for every 1% rection two < br />7 The intact rate of miner's lamp is 95%, and there is no red light or off light for miner's lamp in use underground On site inspection, no score below 95%, spot check no less than 50, 0.5 points dected if a red light is found underground; One point will be dected if the lights are off two < br />8 5% of equipment to be repaired For on-site inspection, 1 point will be dected for every 1% increase two < br />9 Electromechanical accident rate 1% Check the report and record, accumulate by month, no score if it is more than 2%, no score if it is inconsistent with the record two < br />10 No non-standard and obsolete equipment 0.5 points will be dected if one is found one < br />11 Have the equipment overhaul plan issued by the company (bureau), and can complete 90% or more If there is no overhaul plan or the completion rate of the plan is less than 90%, if it is less than 25% in the first half of the year, no score will be given one
two Electromechanical Safety thirty < br /> The safety protection device is complete and reliable, and the qualified rate is 100% < br />1 Main lifting system five < br /> The vertical shaft (inclined shaft) hoisting system should be equipped with: (1) under voltage protection 2) Over current protection 3) Over winding protection 4) Gate gap protection 5) Over speed protection 6) Speed limit protection 7) Loose rope protection 8) The signal and control circuit are locked 9) Single rope cage lifting with anti falling device 10) The communication signals are perfect and meet the requirements 11) Depth indicator failure protection 12) Full bin protection device 13) Deceleration function protection 14) The function protection against over winding, over speed, speed limit and deceleration is set as independent double line type 15) Auxiliary shaft and negative lifting system are equipped with electric braking 16) If the braking deceleration degree of inclined shaft lifting can not meet the requirements, secondary braking device shall be set 17) Lifting winch height One point will be dected if one site inspection fails. three
inspector: professional team leader: inspection time:
Electromechanical Safety Quality Standardization standard and assessment score table (continued Table 1)
total score of mine:
serial number Inspection items Assessment and scoring method Standard
score Actual score The reasons for dection
Low voltage double circuit 18) Shaft wellhead facilities interlocking 19) Anti collision beam and can supporting device of shaft hoisting system 20) The overwinding height and overwinding distance of shaft hoisting system meet the requirements 21) the skip of main shaft is loaded with fixed weight 22) install instrial TV monitor at upper and lower wellhead < br /> Main lifting belt conveyor
installation of wire rope traction belt: ① under voltage protection; ②; Over current protection; ③ De grooving protection; ④ Over speed protection; ⑤ Local overload protection of conveyor belt; ⑥ When the wire rope tensioning car reaches the terminal point and the tensioning heavy hammer falls to the ground for protection; ⑦ There should be an emergency stop device that can be operated by passengers or other personnel at any place of the whole length of the conveyor; ⑧ Sound and light signal and automatic stop device for dismounting place; ⑨ Installation of steel cord belt: ① under voltage protection; 2; ② Over current protection; ③ Coal storage protection; ④ Anti skid protection; ⑤ Anti deviation device; ⑥ Temperature protection; ⑦ Smoke protection; ⑧ Automatic sprinkler; ⑨ Belt tension drop protection; ⑩ Tear protection; (11) anti reversing device and braking device shall be set up ring up running, and braking device shall be set up ring down running; (12) belt break protection device. One disqualification is not scored two < br />2 Mine ventilation system has:
(1) 2) . anti wind facilities 3) Explosion proof door 4) The motor has over-current protection and no voltage release device 5) Bearing has over temperature indication and alarm signal 6) . there is a private phone If one item is missing or one place is unqualified, no score will be given one < br />3 The compressed air system has over temperature protection, water and oil cut-off protection or signal, motor over-current protection, safety valve and pressure relief valve reliable action If one item is missing or one place is unqualified, no score will be given. one < br />4 The main drainage system includes: closed door; The distribution gate is complete and flexible; Reliable water diversion device; Short circuit protection; The motor protection is complete; The safe passage is unblocked; Under voltage protection If one item is missing or one place is unqualified, no score will be given one < br />5 The steam boiler of heating system (instrial boiler system with evaporation capacity of 2T / h and above) is equipped with two-color water level gauge or two independent water level gauges, with high and low water level alarm device, and the action of safety valve and blowdown valve is reliable. The hot water boiler shall be equipped with thermometer, safety valve, overtemperature protection and automatic water supply device, with reliable action, pressure recing valve, overpressure alarm and interlock protection in the system. If one item is missing or one place is unqualified, no score will be given one
inspector: professional team leader: inspection time:
Electromechanical Safety Quality Standardization standard and assessment score table (continued Table 2)
total score of mine:
serial number Inspection items Assessment and scoring method Standard
score Actual score Reasons for dection
6 The ground power supply system has: (1) special double circuits for main equipment 2) Direct supply motor or switch with capacitor has under voltage protection 3) Over current protection 4) Switch cabinet "five prevention" function 5) The switch cabinet with reverse power transmission shall be locked and clearly marked 6) The substation shall have reliable tripping power supply 7) The high voltage distribution board is equipped with selective grounding protection 8) The single-phase grounding capacitive current meets the requirements 9) The main operation mode meets the requirements 10) Electrical work order and operation order meet the requirements 11) There is a private phone On site inspection, one less item or one unqualified item: (1) no score; (2) ~ (11) dect 1 point three < br />7 Underground power supply system twelve < br />1 Qualified power supply system design and protection setting verification 0.5 points will be dected if one of them fails to pass the on-site inspection and data checking two < br />2 High voltage flameproof switch should be installed: (1) under voltage release protection 2) Short circuit protection 3) Overload protection 4) Selective grounding protection device 5) The vacuum high voltage explosion-proof switch should also be equipped with overvoltage protection
the general high voltage switch for mining should be installed with: (1) under voltage protection 2) Short circuit protection 0.5 points will be dected if one part is not installed or unqualified (1) ~ (2) ring on-site inspection or data checking 3) Dect 0.2 point for (5) one point five < br />3 Low voltage motors are equipped with short circuit, overload, single-phase disconnection, leakage blocking protection and remote control devices. If one part is not installed or unqualified, no score will be given one < br />4 The motor of 40kW and above shall be controlled by vacuum electromagnetic force starter, and the motor shall be protected comprehensively If one part is not installed or unqualified, no score will be given. one < br />5 Comprehensive protection for 127V power supply system (including signal lighting, electric coal drill, etc.) 0.5 points will be dected if one part is not installed or unqualified ring on-site inspection or data checking one < br />6 Local fans and electrical equipment in heading face must be equipped with wind power locking device If one part is not installed or unqualified, no score will be given. one < br />7 Wind power locking device and gas power locking device must be installed in coal roadway driving face If one part is not installed or unqualified, no score will be given. one point five < br />8 Four small wires and power cables use flame retardant cables 0.5 points will be dected if one cable is unqualified, 0.5 points will be dected if one cable joint of intrinsically safe system is unqualified, and the unqualified cable joint of non intrinsically safe system will be punished as loss of explosion one < br />9 Low voltage power supply system must be equipped with leakage detection protection or selective leakage protection device. 0.5 points will be dected if one non conformity is found ring on-site inspection or data checking one < br />10 The grounding protection meets the requirements of "detailed rules for installation, inspection and measurement of underground protective grounding devices in coal mines" If one disqualification is found ring on-site inspection, no score will be given one
inspector: professional team leader: inspection time:
Electromechanical Safety Quality Standardization standard and assessment score table (continued Table 3)
total score of mine:
serial number Inspection items Assessment and scoring method Standard
score Actual score Reasons for dection
8 Mining and transportation equipment six < br />1 The shearer is equipped with locking device for emergency stop scraper conveyor, and the fully mechanized working face is equipped with communication and lighting. The working face with inclination of 15 degrees and above must be equipped with anti-skid device. The working face of coal plough shall be equipped with devices that can stop the plough head and scraper conveyor at any time or send signals to the driver of coal plough at least every 30 m. The plough head position indicator shall be provided. When the inclination angle of working face is more than 12 degrees, the scraper conveyor must be equipped with anti-skid and anchoring devices. The loader shall be equipped with rail clamping device, brake, protective railings and lighting. The buzzer, lighting and emergency stop switch of roadheader are complete. 0.5 points will be dected if one item is missing or one place is unqualified in on-site inspection or inspection data three < br />2 Scraper conveyor, belt conveyor
hydraulic coupling of scraper conveyor, using water (or fire-resistant liquid) medium, using qualified fusible plug and explosion-proof sheet
flame retardant belt is used for belt conveyor, with anti-skid, coal stacking, anti deviation, temperature and smoke protection, automatic sprinkling device, protective barrier at the head, shield at the tail, and crossing bridge at pedestrian crossing The head and tail of the conveyor are fixed firmly 0.5 points will be dected if one non conformity is found ring on-site inspection or data checking two < br />3 The hydraulic system
has complete parts and components, the pipeline and valve group are not connected and leaking, and the pump station pressure meets the requirements 0.1 point will be dected for one disqualification ring on-site inspection one
three Mechanical and electrical management, civilized proction forty < br />1 There are mechanical and electrical departments and electrical, cable, small electrical appliances, explosion-proof inspection, equipment, accessories, grease, tape professional management team five < br />1 Mechanical and electrical department in charge and play a leading role in charge of business There is no department in charge or it doesn't work, no score one < br />2 Business flow chart suitable for integrated management No, no, No one < br />3 ( 1) Electrical management 2) Cable management 3) Small electrical equipment management 4) Explosion proof inspection 5) Equipment management 6) Spare parts management 7) Oil management (including emulsion Management) If one item is found to be unmanaged or mismanaged, 1 point will be dected three < br />2 Carry out comprehensive management of equipment eight < br />1 Participate in the overall planning of major equipment Check information, no planning or implementation is not good score one < br />2 Reasonable selection Check the equipment, find one does not meet the requirements, no score one < br />3 Timely installation 0.5 points will be dected if one of the equipment is found not to meet the requirements one
inspector: professional team leader: inspection time:
Electromechanical Safety and quality standardization standards and assessment
total score of mine:
serial number Inspection items Assessment and scoring method Standard
score Actual score The reasons for dection
total one hundred
one Equipment and index thirty < br />1 The mechanical and electrical equipment must have the proct certificate, the coal mine proct safety mark, and the explosion-proof equipment must have the explosion-proof certificate On site inspection, if one is found unqualified, no score will be given five < br />2 The intact rate of mechanical and electrical equipment in the whole mine is 90% For on-site inspection, 0.5 points will be dected for every 1% rection five < br />3 The large fixed equipment in use is in good condition 1.5 points will be dected if one is not in good condition ring on-site inspection three < br />4 Explosion proof rate of explosion-proof electrical equipment and small electrical appliances is 100% No score will be given if one set (piece) is found to be lost ring on-site inspection five < br />5 The qualified rate of small electrical appliances is 95% For on-site inspection, 0.5 points will be dected for every 1% rection two < br />6 The qualified rate of cable hanging is 95% For on-site inspection, 0.5 points will be dected for every 1% rection two < br />7 The intact rate of miner's lamp is 95%, and there is no red light or off light for miner's lamp in use underground On site inspection, no score below 95%, spot check no less than 50, 0.5 points dected if a red light is found underground; One point will be dected if the lights are off two < br />8 5% of equipment to be repaired For on-site inspection, 1 point will be dected for every 1% increase two < br />9 Electromechanical accident rate 1% Check the report and record, accumulate by month, no score if it is more than 2%, no score if it is inconsistent with the record two < br />10 No non-standard and obsolete equipment 0.5 points will be dected if one is found one < br />11 Have the equipment overhaul plan issued by the company (bureau), and can complete 90% or more If there is no overhaul plan or the completion rate of the plan is less than 90%, if it is less than 25% in the first half of the year, no score will be given one
two Electromechanical Safety thirty < br /> The safety protection device is complete and reliable, and the qualified rate is 100% < br />1 Main lifting system five < br /> The vertical shaft (inclined shaft) hoisting system should be equipped with: (1) under voltage protection 2) Over current protection 3) Over winding protection 4) Gate gap protection 5) Over speed protection 6) Speed limit protection 7) Loose rope protection 8) The signal and control circuit are locked 9) Single rope cage lifting with anti falling device 10) The communication signals are perfect and meet the requirements 11) Depth indicator failure protection 12) Full bin protection device 13) Deceleration function protection 14) The function protection against over winding, over speed, speed limit and deceleration is set as independent double line type 15) Auxiliary shaft and negative lifting system are equipped with electric braking 16) If the braking deceleration degree of inclined shaft lifting can not meet the requirements, secondary braking device shall be set 17) Lifting winch height One point will be dected if one site inspection fails. three
inspector: professional team leader: inspection time:
Electromechanical Safety Quality Standardization standard and assessment score table (continued Table 1)
total score of mine:
serial number Inspection items Assessment and scoring method Standard
score Actual score The reasons for dection
Low voltage double circuit 18) Shaft wellhead facilities interlocking 19) Anti collision beam and can supporting device of shaft hoisting system 20) The overwinding height and overwinding distance of shaft hoisting system meet the requirements 21) the skip of main shaft is loaded with fixed weight 22) install instrial TV monitor at upper and lower wellhead < br /> Main lifting belt conveyor
installation of wire rope traction belt: ① under voltage protection; ②; Over current protection; ③ De grooving protection; ④ Over speed protection; ⑤ Local overload protection of conveyor belt; ⑥ When the wire rope tensioning car reaches the terminal point and the tensioning heavy hammer falls to the ground for protection; ⑦ There should be an emergency stop device that can be operated by passengers or other personnel at any place of the whole length of the conveyor; ⑧ Sound and light signal and automatic stop device for dismounting place; ⑨ Installation of steel cord belt: ① under voltage protection; 2; ② Over current protection; ③ Coal storage protection; ④ Anti skid protection; ⑤ Anti deviation device; ⑥ Temperature protection; ⑦ Smoke protection; ⑧ Automatic sprinkler; ⑨ Belt tension drop protection; ⑩ Tear protection; (11) anti reversing device and braking device shall be set up ring up running, and braking device shall be set up ring down running; (12) belt break protection device. One disqualification is not scored two < br />2 Mine ventilation system has:
(1) 2) . anti wind facilities 3) Explosion proof door 4) The motor has over-current protection and no voltage release device 5) Bearing has over temperature indication and alarm signal 6) . there is a private phone If one item is missing or one place is unqualified, no score will be given one < br />3 The compressed air system has over temperature protection, water and oil cut-off protection or signal, motor over-current protection, safety valve and pressure relief valve reliable action If one item is missing or one place is unqualified, no score will be given. one < br />4 The main drainage system includes: closed door; The distribution gate is complete and flexible; Reliable water diversion device; Short circuit protection; The motor protection is complete; The safe passage is unblocked; Under voltage protection If one item is missing or one place is unqualified, no score will be given one < br />5 The steam boiler of heating system (instrial boiler system with evaporation capacity of 2T / h and above) is equipped with two-color water level gauge or two independent water level gauges, with high and low water level alarm device, and the action of safety valve and blowdown valve is reliable. The hot water boiler shall be equipped with thermometer, safety valve, overtemperature protection and automatic water supply device, with reliable action, pressure recing valve, overpressure alarm and interlock protection in the system. If one item is missing or one place is unqualified, no score will be given one
inspector: professional team leader: inspection time:
Electromechanical Safety Quality Standardization standard and assessment score table (continued Table 2)
total score of mine:
serial number Inspection items Assessment and scoring method Standard
score Actual score Reasons for dection
6 The ground power supply system has: (1) special double circuits for main equipment 2) Direct supply motor or switch with capacitor has under voltage protection 3) Over current protection 4) Switch cabinet "five prevention" function 5) The switch cabinet with reverse power transmission shall be locked and clearly marked 6) The substation shall have reliable tripping power supply 7) The high voltage distribution board is equipped with selective grounding protection 8) The single-phase grounding capacitive current meets the requirements 9) The main operation mode meets the requirements 10) Electrical work order and operation order meet the requirements 11) There is a private phone On site inspection, one less item or one unqualified item: (1) no score; (2) ~ (11) dect 1 point three < br />7 Underground power supply system twelve < br />1 Qualified power supply system design and protection setting verification 0.5 points will be dected if one of them fails to pass the on-site inspection and data checking two < br />2 High voltage flameproof switch should be installed: (1) under voltage release protection 2) Short circuit protection 3) Overload protection 4) Selective grounding protection device 5) The vacuum high voltage explosion-proof switch should also be equipped with overvoltage protection
the general high voltage switch for mining should be installed with: (1) under voltage protection 2) Short circuit protection 0.5 points will be dected if one part is not installed or unqualified (1) ~ (2) ring on-site inspection or data checking 3) Dect 0.2 point for (5) one point five < br />3 Low voltage motors are equipped with short circuit, overload, single-phase disconnection, leakage blocking protection and remote control devices. If one part is not installed or unqualified, no score will be given one < br />4 The motor of 40kW and above shall be controlled by vacuum electromagnetic force starter, and the motor shall be protected comprehensively If one part is not installed or unqualified, no score will be given. one < br />5 Comprehensive protection for 127V power supply system (including signal lighting, electric coal drill, etc.) 0.5 points will be dected if one part is not installed or unqualified ring on-site inspection or data checking one < br />6 Local fans and electrical equipment in heading face must be equipped with wind power locking device If one part is not installed or unqualified, no score will be given. one < br />7 Wind power locking device and gas power locking device must be installed in coal roadway driving face If one part is not installed or unqualified, no score will be given. one point five < br />8 Four small wires and power cables use flame retardant cables 0.5 points will be dected if one cable is unqualified, 0.5 points will be dected if one cable joint of intrinsically safe system is unqualified, and the unqualified cable joint of non intrinsically safe system will be punished as loss of explosion one < br />9 Low voltage power supply system must be equipped with leakage detection protection or selective leakage protection device. 0.5 points will be dected if one non conformity is found ring on-site inspection or data checking one < br />10 The grounding protection meets the requirements of "detailed rules for installation, inspection and measurement of underground protective grounding devices in coal mines" If one disqualification is found ring on-site inspection, no score will be given one
inspector: professional team leader: inspection time:
Electromechanical Safety Quality Standardization standard and assessment score table (continued Table 3)
total score of mine:
serial number Inspection items Assessment and scoring method Standard
score Actual score Reasons for dection
8 Mining and transportation equipment six < br />1 The shearer is equipped with locking device for emergency stop scraper conveyor, and the fully mechanized working face is equipped with communication and lighting. The working face with inclination of 15 degrees and above must be equipped with anti-skid device. The working face of coal plough shall be equipped with devices that can stop the plough head and scraper conveyor at any time or send signals to the driver of coal plough at least every 30 m. The plough head position indicator shall be provided. When the inclination angle of working face is more than 12 degrees, the scraper conveyor must be equipped with anti-skid and anchoring devices. The loader shall be equipped with rail clamping device, brake, protective railings and lighting. The buzzer, lighting and emergency stop switch of roadheader are complete. 0.5 points will be dected if one item is missing or one place is unqualified in on-site inspection or inspection data three < br />2 Scraper conveyor, belt conveyor
hydraulic coupling of scraper conveyor, using water (or fire-resistant liquid) medium, using qualified fusible plug and explosion-proof sheet
flame retardant belt is used for belt conveyor, with anti-skid, coal stacking, anti deviation, temperature and smoke protection, automatic sprinkling device, protective barrier at the head, shield at the tail, and crossing bridge at pedestrian crossing The head and tail of the conveyor are fixed firmly 0.5 points will be dected if one non conformity is found ring on-site inspection or data checking two < br />3 The hydraulic system
has complete parts and components, the pipeline and valve group are not connected and leaking, and the pump station pressure meets the requirements 0.1 point will be dected for one disqualification ring on-site inspection one
three Mechanical and electrical management, civilized proction forty < br />1 There are mechanical and electrical departments and electrical, cable, small electrical appliances, explosion-proof inspection, equipment, accessories, grease, tape professional management team five < br />1 Mechanical and electrical department in charge and play a leading role in charge of business There is no department in charge or it doesn't work, no score one < br />2 Business flow chart suitable for integrated management No, no, No one < br />3 ( 1) Electrical management 2) Cable management 3) Small electrical equipment management 4) Explosion proof inspection 5) Equipment management 6) Spare parts management 7) Oil management (including emulsion Management) If one item is found to be unmanaged or mismanaged, 1 point will be dected three < br />2 Carry out comprehensive management of equipment eight < br />1 Participate in the overall planning of major equipment Check information, no planning or implementation is not good score one < br />2 Reasonable selection Check the equipment, find one does not meet the requirements, no score one < br />3 Timely installation 0.5 points will be dected if one of the equipment is found not to meet the requirements one
inspector: professional team leader: inspection time:
Electromechanical Safety and quality standardization standards and assessment
4. The following ball mill maintenance knowledge comes from Yunnan Hengfu mine equipment ball mill equipment network:
after maintenance, it can be delivered for use only after passing the acceptance according to the equipment maintenance system
1. Before start-up, remove the sundries around the equipment, check whether the screws are tight, check the wear of spoon head and grading blade, and check whether the belt conveyor and feeder are in good condition
2. Check whether the oil pipe is smooth, the oil quantity of the recer should reach the mark line, the oil quality should meet the quality requirements, and the lubrication tools should be complete
3. Check whether the rotating parts and safety facilities are reliable, and whether the electrical parts are faulty
4. Check whether the water pipe and pulp pipe are unblocked, and whether there is drip leakage in each part; Check the wear of the bottom of the discharge chute and remove the debris in the chute
5. After stopping for more than two hours, the ball mill and classifier should be barring before starting up to make the consolidated ore loose and rece the impact load when the equipment starts up
6. After the inspection is completed and the equipment of the post is confirmed to be normal, the "maintenance board" can be removed to inform the next process and the electrician ty room to send power and prepare to start.
after maintenance, it can be delivered for use only after passing the acceptance according to the equipment maintenance system
1. Before start-up, remove the sundries around the equipment, check whether the screws are tight, check the wear of spoon head and grading blade, and check whether the belt conveyor and feeder are in good condition
2. Check whether the oil pipe is smooth, the oil quantity of the recer should reach the mark line, the oil quality should meet the quality requirements, and the lubrication tools should be complete
3. Check whether the rotating parts and safety facilities are reliable, and whether the electrical parts are faulty
4. Check whether the water pipe and pulp pipe are unblocked, and whether there is drip leakage in each part; Check the wear of the bottom of the discharge chute and remove the debris in the chute
5. After stopping for more than two hours, the ball mill and classifier should be barring before starting up to make the consolidated ore loose and rece the impact load when the equipment starts up
6. After the inspection is completed and the equipment of the post is confirmed to be normal, the "maintenance board" can be removed to inform the next process and the electrician ty room to send power and prepare to start.
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