Introduction of miner ppt
when building bitcoin, Nakamoto wants bitcoin to be a decentralized currency, not only for use and trading, but also for mining. But it backfired. With the increasing value of cryptocurrency such as bitcoin, mining has become an instry. The competition is more and more fierce, and the pursuit of mining computing power is higher and higher. Therefore, from ordinary computer mining, ASIC mining machine and GPU mining machine have evolved
the algorithm of ASIC mining machine is almost sha256, while the algorithm of GPU mining is different. For example, the algorithm of BTG is equihash, and the algorithm of BCD is optimized x13. Although it is not absolute, it can be simply considered that the currency of sha256 algorithm is generally mined by ASIC mining machine. Other algorithms are basically using GPU miner. There are also exceptions. Scrypt's Leyte coin used to be mined by GPU miner, but later scrypt's algorithm was also conquered by ASIC chips, such as ant miner L3 +, which is the ASIC miner used to dig Leyte coin
ASIC miner refers to the miner that uses ASIC chip as the core of computing power. ASIC is the abbreviation of application specific integrated circuit, which is a kind of electronic circuit (chip) specially designed for a specific purpose. Some mining machinery factories have designed ASIC chips specially for computing the sha256 algorithm of bitcoin, and the mining machinery using them is ASIC mining machinery. Because ASIC chip is only built for specific computing, its efficiency can be much higher than that of CPU. For example, the current mainstream ant miner S9 is ASIC miner, which uses 189 ASIC chips, the computing power reaches 13.5th/s, and the power consumption is only 1350W. As a comparison, the computing power of gtx1080ti, the flagship computer graphics card, will not exceed 60mh / s even if it is optimized well. The difference is tens of thousands of times
GPU miner refers to the miner that uses GPU graphics card as the core of computing power. Cryptocurrencies such as Ethereum, bitcoin and diamond use graphics algorithms, so the speed of computing with graphics card will be the highest. Compared with ASIC miner, GPU miner is more well-known, because it is a computer with enhanced graphics card configurationthe purpose of GPU miner is to make money, so we should pursue the power consumption ratio and maximum profit, so we should pay attention to the cost performance. Generally, the medium and high-end positioning graphics cards, such as AMD rx560 and rx570, have high power consumption ratio, which is a good choice for GPU miner. While flagship cards such as gtx1080ti and AMD vega64 have the strongest single card performance, they are not cost-effective in terms of price and power consumption
in addition, the ASIC miner also has some exotic procts, such as the USB miner of burning cat, which is slightly larger than the U disk, and the power consumption is only 2.25w, which is the smallest bitcoin miner at present
< / blockquote >the above quoted digcoin.com - "Introction to mining machinery classification" has many professional terms. I hope it can help you, thank you
Mining is the use of bitcoin mining machine, which is used to earn bitcoin
one of the ways to get bitcoin is that users download software from personal computer and then run specific algorithm to get corresponding bitcoin after communicating with remote server
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
mining is actually a competition of performance and equipment. The mining machine composed of many graphics cards, even if it's only hd6770, can surpass the single graphics card of most users
and this is not the most terrible. Some mining machines are made up of more such graphics card arrays. When dozens or even hundreds of graphics cards come together, the graphics card itself costs money. Considering the hardware price and other costs, there is a considerable expenditure in mining
bitcoin mining process:
1. To find the ore pool
to start mining, there must be a ore pool with convenient operation and stable output. Its function is to subdivide the data packets for each terminal, and pay the corresponding amount of bitcoin according to the proportion of the data packets calculated by the terminal through precise algorithm
2. Download bitcoin miner (software)
in fact, there are many kinds of this miner, you can go to the official website to download
3. Setting mining software is a green software. After installation, we can set the language first to facilitate further setting. Next, you need to set the server, user name, password, equipment and so on. Generally, the server chooses a better network from BTC guide series, and the user name and password are set by ourselves before
4, bitcoin mining start
when we confirm that all settings are correct, click the "start mining" button to start bitcoin mining, and then the graphics card will soon enter the full speed running state, the temperature and fan speed will increase, you can monitor the state through gpu-z or graphics card driver
take: Metro Line 5 (Tiantongyuan North Songjiazhuang)
go: Heping West Bridge (passing 8 stations)
go down: Chongwenmen (walking about 150 meters)
Change: 729 (Dongba building materials City chengheyuan community)
go up: Chongwenmen West (passing 22 stations)
go down: Wanyuan road
walk: to Beijing Aerospace general hospital, About 300 meters
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Qiaodong
Change: Express No.1 (Qianmen Demaozhuang)
upper: Muxiyuan bridge (after 9 stops)
lower: Donggaodi
walk: about 250 meters to Beijing Aerospace general hospital
1. Demon refining task: 12 rings a day. When you receive the task, you can choose to use 10 gifts to brush to 10 stars, and when you receive the reward, you can choose to use 50 gifts to get twice the reward
2. Experience , we can gain a lot of experience through experience , and get double reward by using 100 yuan treasure
3. Equipment recycling: you can gain experience and shield fragments by recycling unwanted equipment
4. Through the twelve palaces, you can gain experience and gem fragments
5. In demon killing territory, you can gain experience by using the guard to snipe the monsters in demon killing ridge
6. Escorting the escort cart, the better the quality of the escort cart, the more experience you can gain
7. Hang up the mining machine, buy Chiyue mining hoe in Tiejin mall and go to the mine cave for mining to gain experience.
1. Model and specification: ккд— 700 (px-700 / 130) feed mouth 700 mm
2. Feed and discharge particle size: feed particle size: & lt; 550 mm; Ore size: 100-160 mm
3. Type: suspension shaft type
4. Transmission mode: the motor is decelerated by V-belt pulley and connected to the transmission shaft by elastic coupling
5. Maximum lifting capacity of crushing cone: 160mm
6. Eccentricity: upper eccentricity: 21.61mm; Lower eccentricity: 33.37 mm
7. Motor model jr127-8, 130 kW, 735 rpm
8. Shaft speed: 406 rpm
9. Eccentric sleeve revolution, 140 rpm
10. Proction capacity: when the discharge port is 130 mm, the proction capacity is about 300 t / h
11. Lubrication mode: oil pump
12. Overall dimension: 2800 × five hundred and fifty-five × 4415
13. Total weight: 33706kg. 1. Overload operation of equipment is not allowed, such as too much or too large ore feeding, too small ore outlet, etc
2. The maximum lump size of ore feeding should not exceed 80-85% of the width of ore feeding mouth
3. The adjusting gap of the ore outlet should be within the range of 100-160 mm (the crushing cone is 1:3, that is, the crushing cone rises by 6 mm and the ore outlet decreases by 1 mm)
4. It is strictly forbidden for metal iron and other foreign matters to enter the crusher cavity ring operation. If they enter, they should be stopped immediately for elimination. 1. Check whether there is enough lubricating oil in the oil tank, whether the oil quality meets the requirements, and whether the oil filter is not clean
2. Test the oil pump and check whether there is oil leakage in the oil pump and pipeline
3. Whether the oil pressure is between 0.8-1.5kg/cm2
4. Check whether the oil return is not smooth and the oil flow is unstable
5. There is no looseness in the foundation screw of each part of the machine body and the frame interface screw in the frame
6. Whether the screws, pulley and key of the transmission shaft are loose
7. If there are any materials in the crusher chamber, it must be removed before starting
8. Whether the easily worn parts of the engine body (such as broken cone liner and middle frame liner) are seriously worn or cracked
9. Check whether the funnel is blocked or seriously worn
10. Check whether the hand wheel of oil immersed rheostat in electrical part is at zero position
11. Check the contact condition of motor carbon brush
12. It is not flexible to check the distribution box and operating mechanism
13. Check whether the pointer of ammeter is at zero. 1. Operation method of the equipment
(1) before operation, the equipment must be inspected item by item according to the inspection content
(2) start the oil pump first, and start the motor only after the return oil is normal
(3) pay special attention to the sound of motor and crusher when starting, and stop running immediately in case of any abnormality
(4) start feeding after normal operation of the equipment
(5) ore feeding must be stopped when the operation is stopped, and it can only be stopped when there is no ore in the crushing chamber
(6) stop the oil pump feeding
2. Start up operation sequence:
(1) first check whether the oil immersed rheostat is at the zero position and whether the short-circuit switch is open
(2) press the start button
(3) slowly transfer the hand wheel of the oil immersed rheostat to the starting position until the motor reaches the rated speed
(4) close the short circuit breaker
(5) observe whether the indication of ammeter is normal
(6) the motor shall not be started frequently, and generally it shall not be started more than three times continuously
3. Stop operation sequence:
(1) stop feeding before stop, and stop the crusher when all ores in the crusher cavity are discharged
(2) the operator presses the stop button
(3) turn the hand wheel of the oil immersed rheostat back to the zero position and open the short-circuit knife switch
(4) after power failure without notice or shutdown with load, the ore in the crusher cavity must be taken out to facilitate the start-up after power supply
2. The length of grinding span should be adapted to the separation span. If the separation span is too long, parallel configuration can be considered
3. The grinding machine of multi-stage grinding can be configured in the same bay or in two bays. The advantages of two span configuration are simple process and few circuits, but when there are not many grinders, it is more economical to configure in one span
4. The angle of belt conveyor used for grinding machine feeding should not be too large, generally less than 18 °， The receiving point of the feeder should be stable, and the captain depends on the installation requirements of the electronic scale. In order to ensure the accuracy, it is better to use the tail of the heavy hammer to tighten the belt to maintain a certain tension
5. Crane capacity shall be selected according to regulations. When multiple cranes are used e to the large number of mills, the double deck layout method should be avoided to rece the height of the plant
6. The special maintenance equipment should be selected according to the requirements of the manufacturer. The grinding machine with a diameter of more than 5m should generally be equipped with a special manipulator, and there should be enough space and area in the configuration
7. When grinding across the surface, enough slope should be maintained, generally 5-10%, and good sewage and sand discharge systems should be set up to meet the requirements of environmental protection and rece metal loss
8. Due to the large noise in the workshop, the relevant offices, living rooms and automatic control rooms should be arranged far away from the sound source, or appropriate sound insulation measures should be taken
9. The steel ball warehouse should be located near the maintenance site, and the transportation convenience should be considered in combination with the terrain. In order to improve the condition of ball cleaning, a waste ball bin should be set up on the maintenance site to facilitate the transportation of waste balls by truck
10. The area of the maintenance site shall be selected according to the provisions of this manual. The gate of the site shall be consistent with the external transportation conditions. The specifications of the gate shall meet the installation and transportation requirements of grinding machine parts and components. When the overall size of the equipment is large, the installation hole should be reserved
this information is provided by Henan Gongyi Xinxing Machinery Factory.
the three businesses (cloud computing power, mining machinery leasing, mining machinery trusteeship) provided by Chinese and foreign mining instry have lowered the threshold of mining, allowing small and medium-sized miners to participate in block chain mining through "cloud mining"
what is "cloud mining"? Cloud mining is usually a large-scale mine, which divides its self purchased mining machine into a smaller contract according to its computing power, and stipulates different service life. The contract of selling computing power in this way is called computing power contract. Users can purchase or lease the whole mining machine for mining, thus avoiding the trouble of maintaining the mining machine in the self built mine
the reason why it is called cloud mining is that users do not need to touch physical mining machines, and the occurrence of mining behavior is just a few mouse clicks for them, which is completely virtualized
in terms of threshold and convenience, cloud mining is quite in demand
for the mine, it is equivalent to locking in the revenue in advance and sharing the cost equally; For the users who purchase computing power and rent mining machines for cloud mining, they are free from the tedious steps of site selection, mining machine setting, cooling and noise removal that may be involved in traditional mining. At the same time, compared with family mining, large-scale mines have the advantage of lower electricity price, and users pay less electricity and maintenance costs, which is a win-win situation
suggestions are only for reference, not for any investment suggestions.
The equipment of tungsten ore dressing proction line is composed of jaw crusher, ball mill, classifier, magnetic separator, flotation machine, thickener, dryer and other main equipment, which can form a complete dressing proction line with feeder, elevator and conveyor. The tungsten ore beneficiation proction line has the advantages of high efficiency, low energy, high capacity, economic and reasonable