Characteristics and characteristics of mining
In 2009, bencong invented bitcoin, and set that there are only 21 million bitcoins. By participating in the proction of blocks and providing proof of work (POW), he can get the reward of bitcoin network. This process is mining
the concept of "mining" comes from the existing concepts in our real economic life, such as gold mining and silver mining. Because minerals are valuable, it drives people to pay labor to dig
another important point of bitcoin mining is that the miners who participate in mining recognize the value of bitcoin, and some of them are willing to spend money in the bitcoin market. Therefore, the mining of bitcoin is meaningful
extended data
currency characteristics of bitcoin
1, decentralized
bitcoin is the first distributed virtual currency, and the whole network is composed of users without central bank. Decentralization is the guarantee of bitcoin's security and freedom
2, bitcoin can be managed on any computer connected to the Internet. No matter where you are, anyone can dig, buy, sell or collect bitcoin
3, exclusive ownership
controlling bitcoin requires a private key, which can be stored in any storage medium in isolation. No one can get it except the user himself
4, low transaction cost
bitcoin can be remitted free of charge, but in the end, about 1 bitfen transaction fee will be charged for each transaction to ensure faster transaction execution
5, no hidden cost
as a means of payment from a to B, bitcoin has no cumbersome limit of quota and proceres. If you know the other party's bitcoin address, you can pay
6, cross platform mining
users can explore the computing power of different hardware on many platforms
ancient mining can be traced back to the selection of stone materials in the stone age. Later, with the rise of the metallurgical instry, mining, mineral processing technology has graally developed. This paper introces the ancient Chinese open-pit mining, underground mining, roadway support, rock fragmentation, roadway ventilation, lighting, drainage, transportation, mineral processing and other aspects< There are many surface outcrops, slope deposits or resial deposits in open-pit mining of various metal veins or orebodies, so open-pit mining has become an important mining method in ancient times. Open pit mining can be divided into excavation method and reclamation method
2. Mining is the synonym of accumulated income for activities in bitcoin
mining is brought out by the recent popularity of bitcoin. As a virtual currency, bitcoin can be exchanged for real currency. One of the ways to get bitcoin on the Internet is to participate in related activities every day. These activities, like mining in online games, need to slowly accumulate wealth in exchange for bitcoin.
mining is a proct based on blockchain technology. Mining refers to the virtual currency launched by various companies, which is also called token. If the name is different, the miner is called miner
as an electronic currency, bitcoin can be used to buy goods and services. In May 2010, the first purchase of real objects with bitcoin took place in the United States. At the same time, bitcoin is also widely concerned by the market as an investment proct. However, from the perspective of market performance, e to the lack of supervision and the intervention of a large number of speculators, the price of bitcoin is like a roller coaster and fluctuates greatly. In addition, the security of bitcoin trading platform is relatively low, once hacked, it will cause irreparable losses. In China, bitcoin is not considered as a real currency, and there are many restrictions on it. These are the risks that you need to pay attention to when investing in bitcoin.
The price of bitcoin mining machine ranges from two or three hundred yuan to 200000 yuan. From 2011 to 2013, the high configuration bitcoin "mining machine" increased from 10000 yuan to 300000 yuan, but its performance is much better than before. According to instry insiders, the old machine can only dig 1 bitcoin in 100 days, but now (2013) machine can dig 3.5 bitcoins in 100 days
according to the miner information published by the domestic assembly team, a miner with the lowest configuration at the price of 3000 yuan can be returned in more than 30 days according to the bitcoin mining speed. The machine with mining speed of 10G / s can dig about 0.03 bitcoins 24 hours a day, while the machine with mining speed of 13g / s can dig about 0.035 bitcoins 24 hours a day according to the computing power and difficulty of the whole network in 2013. Mining is actually a competition of performance and equipment. The mining machine composed of many graphics cards, even if it's only hd6770, the computing power after "grouping" 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. Taking into account the hardware price and other costs, there is a considerable expenditure in mining< br />
Data model of metallogenic regularity research
Compared with other instries, the proction environment and process of mining have the following characteristics:
(1) the main raw materials for mining and processing are naturally occurring ore bodies. The mine site cannot be selected freely, and the instrial reserves of the deposit cannot be imported or regenerated. The proction capacity, service life and economic benefit of the mine are closely related. Every mine has to go through the process of mine construction, proction, normal proction, proction rection and mine closure
(2) mining equipment and personnel are often transferred with the mining process and processing objects, and there is no fixed processing workshop. The mined ore body must be excavated a series of roadways to prepare for mining. Development, mining and stoping should be coordinated to ensure the normal proction of the mine. Otherwise, it will lead to mining and stripping imbalance or mining imbalance, forcing the mine to rece proction
(3) the general trend of mining work is that the mining conditions are getting worse and worse, the grade of mined ore is graally decreasing, and then the cost may increase. Due to the mixing of rock, the ore will be poor and the quality will be reced, and some of the ore can not be mined and lost underground. Therefore, it is necessary to continuously improve the mining and mineral processing technology and carry out comprehensive utilization to rece the cost. Recing dilution rate and loss rate is an important quality management work in mining proction, which has great economic potential< (4) the occurrence conditions and shape of ore bodies are complex, and the grade distribution is uneven. The instrial reserves may have great changes in the mining process, which makes it difficult to standardize the mining design. In addition, the mining construction period is long, and the infrastructure investment is large, so the investment risk is also large
(5) mining work is in open pit or underground stope. Due to large amount of labor, poor working conditions and poor safety, it is difficult to realize comprehensive mechanization and automation, so special attention should be paid to improving labor protection and environmental conditions
(6) the operation effect of a mine is largely determined by the market supply and demand and value of the mined ore. Therefore, the evaluation of mine management level should not be based on absolute economic benefits just like other instries
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