Mining machine excavation

1. bitcoin, as a kind of network virtual currency, is very popular. Many people will "dig" bitcoin. Today, let's introce the mining tutorial of bitcoin
Step 1: prepare mining machines and pools
if you want to dig bitcoin, you must prepare professional equipment. At present, there are many professional mining machines on the market, and the pool is also essential. When you choose a pool, you should also compare the output and income gap of each pool, and then choose the most suitable one
Step 2: register and set the mine account
after the mine is ready, register the mine account and set a common email. When setting the mine account, each CPU or GPU needs to set a mine account
Step 3: download the bitcoin miner
after you register and set up your account, you need to download the bitcoin miner. When downloading the miner, be sure to choose the miner that can make your CPU and graphics card play the most function. After downloading, set the server, user name, password, device and so on
Step 4: Mining
after setting up the miner, click the "start mining" button, the miner will enter the state of full speed operation, and the miner will start mining automatically.

2.

1、 Mining principle

at the beginning, we could dig bitcoin with the computer CPU. The founder of bitcoin, Nakamoto Tsung, g out the world's first creation block with his computer CPU. However, the era of CPU mining has long passed, and now bitcoin mining is the era of ASIC mining and large-scale cluster mining

looking back on the mining history, bitcoin mining has gone through the following five times: CPU mining → GPU mining → FPGA mining → ASIC mining → large-scale cluster mining, The mining speed changes are as follows:

CPU (20mhash / s) → GPU (400mhash / s) → FPGA (25ghash / s) → ASIC (3.5tash / s) → large scale cluster mining (3.5tash / s * x)

mining speed, which is called computing power in professional terms, that is, the ability of computer to generate hash collisions per second. In other words, how many hash collisions can our miner do per second is the calculation force. Computing power is the ability to dig bitcoin. The higher the computing power, the more bitcoin you dig, the higher the return

in the world of bitcoin, a data block is recorded about every 10 minutes. All mining computers are trying to package the data block and submit it, and the person who successfully generates the data block will get a bitcoin reward. Initially, bitcoin rewards of 50 bitcoins could be generated about every 10 minutes. But the payment is halved every four years, and now the bitcoin network can generate 25 bitcoins every 10 minutes

to successfully generate data blocks, miners need to find the effective hash value. To get the correct hash value, there is no shortcut. You can only guess. The process of guessing is the process of computer random hash collision. If you guess correctly, you will get bitcoin

Mining method: from a miner to a large-scale mine, you need to prepare a miner, a computer that can connect to the Internet, an AUC, a raspberry pie, power supply and all kinds of connecting lines, etc. The connection order of various devices is network cable - & gt; Raspberry pie - & gt; Microusb cable - & gt; AUC-> 4Pin cable - & gt; Mining machine and power supply

< EM > Figure 3: Mine Map (scale of tens of thousands of mining machines) < / EM >

nowadays, the profit space of small and medium-sized absenteeism who take one mining machine home or deploy a small family workshop (dozens of mining machines) is very limited, and the mining instry is graally concentrating on enterprises and teams with low-cost power resources and professional deployment ability

there are many factors that affect the mining revenue, such as the performance and power consumption of mining machinery, the computing power and difficulty of the whole network, the deployment and operation and maintenance capacity of the mine, the availability of low-cost electricity resources, and the currency price and policy guidance, etc. At present, excellent mining enterprises have the ability of chip research and development, a lot of computing power, professional mine deployment and operation experience, etc. in the future, resources and computing power will be more and more concentrated in these mining enterprises

2. Mine pool

in addition to the above equipment, you also need a necessary tool - mine pool. The function of the mine pool is to gather a large amount of mineral computing power, increase your probability of getting bitcoin, and at the same time, distribute your future bitcoin income to your account in advance

the simple explanation is as follows: now the bitcoin network generates a block every 10 minutes, which contains 25 bitcoins. Suppose there are 1W people in the world participating in mining, then in these 10 minutes, only one lucky person has taken these 25 bitcoins, and the others have nothing. The principle of the mine pool is that everyone mines in teams and distributes according to the agreed distribution method, so that the income of the miners' bitcoin tends to be stable and the risks of the miners are reced. Let's take the most common PPS allocation method as an example. Suppose that your computing power is 10t, and the computing power of the whole mine pool is 100t. Your computing power accounts for 1 / 10 of the total computing power of the mine pool. Suppose that the mine pool can generate 10 bitcoins a day, then you can get 1 bitcoin a day

3. Cloud computing power

in reality, the supply of mining machines often exceeds the demand, and at the same time, the delivery of mining machines needs a long waiting period. Miner installation, commissioning, maintenance and other processes are very complex, which requires a lot of energy. Miners have to enre the noise and heat of miner. For miners, the biggest cost is not these, but the high electricity charges consumed by mining. The profit space of small and medium-sized miners is getting smaller and smaller, even negative

Mining income and risk mining income can be calculated by the following formula:

Mining income = generated bitcoin * currency price - mining machinery cost - electricity fee - custody fee

if you are just a small miner, generally you only need to dect mining machinery cost and electricity fee

Mining risks are as follows:

< UL >

at present, the number of bitcoin is less than 4.5 million. If we do not issue additional bitcoin, the price of bitcoin will fluctuate, and the price callback will lead to the extension of the payback cycle

mining difficulty improvement at present, our machines can meet the market demand

the risk of power outage

< UL >

< EM >
< / EM >

3.

1. First of all, connect the network cable, plug the network cable into the network cable interface of the mining machine, and remember to plug it tightly. Only when the miner is connected to the Internet, there is no limit to the broadband

extended data

users can buy bitcoin, at the same time, they can also use computers to "mine" bitcoin according to a large number of calculations. When users "mine" bitcoin, they need to use the computer to search for 64 bit numbers, and then compete with other gold miners by repeatedly solving puzzles to provide the required numbers for the bitcoin network. If the user's computer successfully creates a set of numbers, then they will get 25 bitcoins

e to the decentralized programming adopted by the bitcoin system, only 25 bitcoins can be obtained every 10 minutes, and by 2140, the maximum number of bitcoins in circulation will reach 21 million. In other words, bitcoin system is able to achieve self-sufficiency, resist inflation through coding, and prevent others from destroying these codes

4. Enter the map with the type of "excavation", and then fight monsters to explode the energy battery. Take the battery to the place indicated by the map, and then call a mining machine. The mining machine needs energy battery to maintain the excavation. In the process, there are constant enemies attacking. You must ensure the safety of the mining machine and keep fighting monsters to get the battery... If the mining machine is blasted before the completion of excavation, then you are not successful in excavation, you can only get some blue crystal rewards, which is better than nothing... If the mining is successful, there will be bones, such as experience, star coin, mod, walnut and so on... Digging can be played infinitely, but the level of monsters is also rising. Most of the reasons for giving up digging are that it's too hard to hit the battery...

5. Check the price of LBTC today: 23 yuan. So, what can I do with 23 yuan? What am I going to do

in fact, we can do a lot of fun or valuable things

you can buy a hamburger set meal and an iced coke at McDonald's KFC

you can buy a discount ticket at the cinema to see star wars or transformers

you can come to the Internet bar or game hall to play games. On our side, you can play for an afternoon (nobody cares)

you can buy a bunch of roses or a mouse for the person you like to activate your feelings

of course, a 23 yuan LBTC can also be used to do more meaningful things

if there is a poor child in remote Helan Mountain of Ningxia or Laos who can't afford to pay the tuition fee of tens of yuan, as long as he has a smart phone, downloads the LBTC wallet and registers the LBTC address, other LBTC holders in the world can donate money for him to help her go to school. Lbtc3 seconds to the account, up to 1400 TPS per second, so that children can quickly get tuition

many Filipino maids go to Hong Kong and Japan to work. They live frugally every month and save a meager income. However, the handling charge of cross-border remittance is often as high as 5% - 10%, which makes them very difficult. LBTC can help them achieve this goal. LBTC remittance fee is almost zero, and there is no amount limit

until LBTC, like Alipay and WeChat, is accepted by businessmen all over the world, it is good to make hotel, buy breakfast, rent a car and travel abroad with LBTC. LBTC will make our life extremely convenient.

6.

There are three docks from Xiamen to Gulangyu. The ferry terminal is used by people with Xiamen ID card and Xiamen social security card, and is closed to tourists (on Lujiang Road, opposite to the old customs)

Dong cruise center and Songyu Wharf in Haicang District are open to foreign tourists

tickets can be ordered online or purchased at cruise center or Songyu wharf. If you are in the right place, you'd better buy it the day before you go to the island. Because there is a limit to the number of visitors to upper Gulangyu every day

image source network< br />

7. Home computers are not suitable for mining
bitcoin mining refers to the creation and addition of bitcoin blockchain in the process of block transaction. Each block contains hundreds of transactions, and each transaction is paid from one or more bitcoin addresses, other addresses or addresses
the process of creating blocks is called bitcoin mining because there are rewards for each new block to be created and added to the blockchain. In 2017, the reward was 12.5 bitcoin. So as long as you are faster than others and create a new block, you can get a 12.5 bitcoin reward
obviously, the speed of mining depends on the running speed and stability of the computer. Therefore, only professional "mining machine" can be competent for this job. This kind of machine configuration is very high, power consumption is very large, often need more than one cooperation.

8. That's about it. There are more forklifts for loading coal in coal mines, and many excavators for stripping and mountain moving

9.

Hello:

this game you said should be called diamond miner. You can open the software management in Tencent computer housekeeper, and then open the Android game in software management to search for diamond miner in Android game. After searching, you can see a lot of download resources about diamond miner. After choosing your favorite version, Connect the mobile phone to the computer, then download and install it to the mobile phone with one click

10. The extraction of gold comes from placer gold and pulse gold. Since the 1970s, the output of vein gold has been maintained at 75% ～ 85%, and placer gold accounts for 15% ～ 25%< After the primary gold deposit is exposed to the surface, e to mechanical and chemical weathering, the gold bearing vein or gold bearing mother rock is graally broken into cuttings and gold grains. Then, under the action of transportation and separation by external force, the minerals with larger specific gravity (such as gold grains) are deposited on the hillside, river bed and lakeshore bank to form a certain enrichment. Those with instrial mining value are called placer gold deposits
placer gold deposits are usually mined by dredger, hydraulic mining, excavator and underground (shaft) mining. The placer gold deposits in China are mainly mined by dredger, hydraulic mining and excavator mining
placer gold beneficiation process mainly includes preparation operation and beneficiation operation before beneficiation. Preparation operation is mainly composed of crushing and screening. Fragmentation is mainly to dissociate the ore particles and clay slime in the mined ore. Screening is to screen out the coarse fraction without gold. The commonly used equipments are plane screen, cylinder screen, cylinder scrubbing machine, etc. Gravity beneficiation is mainly used for the separation of placer gold. On the one hand, the placer gold ratio is large (average 17.50-18.0) and the particle size is coarse (generally 0.074-2mm). On the other hand, gravity beneficiation is more economical and simple. Gravity separation equipment generally uses various types of chutes, jigs and shakers (commonly used for cleaning)< However, gravity separation, flotation, mercury mixing, cyanidation, resin pulp method, carbon pulp adsorption method and heap leaching method are commonly used to extract gold. For some kinds of ores, the combined gold extraction process is often used
there are many schemes of gold separation process used in proction practice, which are usually as follows:
1. Single mixed mercury process is suitable for treating primary quartz vein deposits and oxidized ores containing coarse gold. The method of extracting gold by mixing mercury is an old and common method of gold separation. In the modern gold instry, the mixed mercury method still occupies a very important position. Because gold is mostly in free state in ores, a part of gold particles in all kinds of ores can be recovered by mixed mercury method. Practice has proved that the loss of coarse gold in tailings can be obviously reced by recovering part of gold particles in advance with mercury mixing method in gold separation process
the theoretical basis of gold extraction by mixed mercury method is that mercury can selectively wet gold particles and then diffuse into the wetted gold particles
in the slurry with water as the medium, when Mercury contacts the surface of gold particles, the contact surface formed by gold and mercury replaces the original contact surface between gold and water and between mercury and water, thus recing the surface energy and destroying the hydration film which hinders the contact between gold and mercury. At this time, mercury diffuses rapidly along the surface of the gold particle and reces the surface energy at the phase interface. Then mercury diffuses into gold particles and forms mercury compound amalgam (mercury paste)
the mixed mercury extraction method can be divided into internal mixed mercury and external mixed mercury. The mercury mixing equipment includes mixing plate, mixing chute, rammer, mixing cylinder and special small ball mill or rod mill< The process is simple, easy to operate and low cost. However, mercury is a toxic substance, which is harmful to human body. Therefore, the concentrator using mixed mercury to extract gold should strictly abide by the safety technical operation proceres, so as to minimize the harm of mercury vapor and metal mercury to human body
2. The combined process of mercury mixing and gravity separation is divided into two schemes: mixing mercury before gravity separation and gravity separation before Mercury mixing. The process of mixing mercury before gravity separation is suitable for treating simple quartz vein gold bearing ore. The process of gravity separation followed by mercury mixing is suitable for the treatment of large gold particles, but the surface is not easy to be directly mixed with mercury, and placer gold ores with low gold content
3. Gravity separation (mixed mercury) - cyanidation combined process, this process is suitable for the treatment of quartz vein gold bearing oxide ore. The concentrate from gravity separation is mixed with mercury; Or the raw ore is directly mixed with mercury, and the tailings, graded ore and mixed sand are cyanidated respectively
4. Single flotation flowsheet this flowsheet is suitable for processing sulfide gold bearing quartz vein ore, polymetallic gold bearing sulfide ore and carbon bearing (graphite) ore with fine gold particles and high floatability
5. The combined process of mercury mixing and flotation is to recover the coarse-grained gold from the ore with mercury mixing first, and then flotation with mercury mixed tailings. This process is suitable for single flotation ore, gold bearing oxide ore and associated free gold ore. The recovery rate of this process is higher than that of single flotation process
6. In the whole slime cyanidation (direct cyanidation) process, gold is proced in quartz vein ore in the form of fine or fine particle dispersion, and the ore is oxidized deeply, and does not contain Cu, as, Sb, Bi and carbonaceous materials. This kind of ore is most suitable for the whole slime cyanidation process
cyanidation is one of the main methods to extract gold and silver. This method has the advantages of high recovery rate, strong adaptability to ore and local proction of gold, so it has been widely used
gold extraction by cyanidation consists of four steps: leaching of gold bearing ore in cyanidation solution, separation of gold bearing precious solution from leaching resie, precipitation of gold leaching and smelting of gold slime. The disadvantage of this method is that cyanide is highly toxic and easy to pollute the environment. In practice, we must strictly do a good job in environmental protection and governance< This process has the following three schemes:
(1) flotation concentrate cyanidation process. It is suitable for the treatment of gold bearing quartz vein ore and quartz pyrite ore which are closely associated with gold and sulfide< (2) flotation roasting cyanidation process. The process is suitable for the treatment of floatable minerals harmful to cyanidation, with only a small amount of gold combined with this mineral
8. Flotation gravity separation combined flowsheet this flowsheet is mainly flotation method, which is suitable for the ores with close coexistence of gold and sulfide and can only recover gold by smelting method. It is also suitable for gold bearing quartz vein ore with uneven coarse accumulation and distribution, and has higher recovery than single flotation
9. Heap leaching heap leaching is a type of Cyanidation for gold extraction, which is suitable for the treatment of low-grade gold ore. The main advantages are simple process, less investment and low cost
the above nine processes are principle processes, and their internal structure should be different according to the different types and properties of ores
no matter which kind of ore contains coarse-grained gold, the principle of early recovery and more recovery should be implemented. Before the ore enters the flotation operation, gravity separation, mercury mixing or single cell flotation should be used to recover coarse-grained gold in time.