Walking machines that can dig mines
The most advanced bitcoin mining machine, one to two years to dig out a bitcoin, bitcoin mining is now too difficult. If you want to dig, you can dig ether currency. Now it is steadily appreciating every day. According to the current development trend, it will be able to recover its capital in about seven months, and then it will be profitable< br />
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
the money g can't fill the electricity bill hole
the configuration of home computers is low, and the computing power of graphics card can't keep up,
mining machines are generally equipped with server power supply<
now mining mainly relies on graphics card (GPU), ordinary home computers, which may be able to dig a coin for hundreds of years
now mining has entered the era of specialization and clustering. Without professional mining machines, there is no profit (because you have the cost of electricity). How can you compete with tens of thousands of other machines. If you really want to do mining, Jianye will buy a special miner to join in the large-scale mining pool.
you can receive about 30 yuan, and the game currency ranges from 50E to 20E
1. Before starting, signal should be sent out to check whether the brake action is flexible and reliable
2. The operation should be smooth and accurate, not too fast or too fast
3. "Five don't touch": don't touch the heavenly wheel; Do not touch the safety teeth
do not touch the track shoe and frame; Do not touch buffer wood; Don't touch the loading vehicle and trunk
4. When doing homework, we must do "eight prohibitions": No "three legs" homework; It is not allowed to bite the teeth unilaterally; It is not allowed to excavate large stones and hard gnaw solid stones or roots; It is not allowed to use bucket teeth to carry large stones for loading; The bucket is not allowed to rotate or walk until it is withdrawn from the working face; Loading is not allowed if the transport vehicle does not stop stably; The bucket is not allowed to pass over the cab; Do not use the bucket to push the car
5. When the bucket is full and rotating, it is not allowed to use the emergency brake to prevent flying materials from causing accidents
6. When the w-100 and w-200 excavators rotate, they should use the rotary brake as far as possible, and it is forbidden to use the reverse top brake of the steering clutch
7. It is forbidden to suspend the bucket, walk or change the boom angle when the bucket is fully loaded
8. The bucket should be unloaded at the middle position above the truck body, and the bucket should not be biased. The unloading height should be such that the bottom plate of the bucket does not touch the truck
9. No umbrella edge or loose boulder is allowed on the face of the tunnel. If collapse danger is found, the excavator shall be handled immediately or evacuated to a safe place
10. When the excavator is turning, no one is allowed to get on or off, and no one is allowed to pass or stay within the turning range
11. During operation, it is necessary to monitor whether there is any abnormal sound in each part and whether the indication of each instrument is in the normal range
the diesel power plant should be checked regularly for oil leakage, water leakage and air leakage. When the water temperature is 75 ~ 850c and the engine oil temperature is 800C, it is suitable to work< The engine oil pressure of 4146 diesel engine is 1.8-3kg/cm2< The oil pressure of 6135 diesel engine is 3-3.5kg/cm2
for the motor power unit, it is necessary to check whether the temperature rise of the motor transformer and each bearing is normal, and whether the generator and motor commutator are on fire. Find out the cause of the general problem and deal with it in time
12. During operation, it is forbidden to inject oil, adjust, repair or clean the rotating parts
13. It is forbidden to excavate the rock above grade 5 without blasting
14. It is strictly forbidden to use bucket for lifting service instry
15. When the operator leaves his post, he must land the bucket
16. When working underwater, the allowable depth of water is: w-100 is lower than the walking brake, w-200 and WK-4 are lower than the plane under the walking square axis< (2) lifting operation
1. The working ground shall be flat and solid, and the maximum gradient shall not exceed 5%
2. The driver should closely contact and cooperate with the ground commander, and operate according to the signal directed by the flag officer. If the signal is not clear, it should be clear before operation
3. Strictly abide by the regulations of the original factory on lifting performance, and do not overload operation
4. When lifting a full load object close to the crane, the heavy object must be lifted 10-30 cm above the ground and stayed for 2-3 minutes, and then the lifting can be continued after it is checked and confirmed to be firm, stable and reliable. When working near full load, it is forbidden to carry out two kinds of operation at the same time
5. The lifting of heavy objects must be stable and the descending speed must be uniform. Sudden braking and sudden braking are forbidden
6. The heavy objects should be bound firmly, the center of gravity of the spreader should match the center of gravity of the heavy objects as far as possible, and inclined lifting is prohibited.