Gravity self-slip movement is the use of ore potential energy to dig the ore. It is suitable for steeply inclined ore bodies and thick inclined and inclined ore bodies. It is widely used. It has the advantages of high production efficiency and low cost. Therefore, the mining method and When the components are appropriate, they should be used as long as the conditions are appropriate.
Gravity self-slip transport is limited by the inclination of the ore body, the stability of the surrounding rock, the structure of the floor and the nature of the ore. The inclination of the ore body is generally greater than 50°~55° . When the ore contains more ore, the humidity is large. When the viscosity is strong, it is greater than this number. In recent years, many mines have promoted vibrating miners to replace all kinds of leak gates of gravity ore mining, and the effect is very significant.
The wooden funnel used for gravity self-slip operation is replaced by a light vibrating miner (weight 500kg , power 150kw ), which has great significance in saving pit wood . According to the statistics of each tungsten mine, the pit wood used for a wooden funnel, including maintenance, is about 2.0m3 , and the amount of ore of a wooden funnel is 1kt . Based on this calculation, the Jiangxi tungsten mine system is based on the current annual output. In the mining and transportation, the vibration and ore is fully promoted, and the annual saving of the pit is about 7,800 m3 , and the mining workers are freed from the cumbersome and dangerous mining operations, which is conducive to safe production. The disadvantages of replacing the wooden funnel with a vibrating miner are:
( 1 ) The initial investment is relatively large. The purchase of a light vibrating miner is 1,500 yuan, which is 3~4 times that of the wooden funnel . If the vibrating ore machine can be reused more than 4 times, the cost will be lower than that of the wooden funnel; ( 2 ) It is necessary to increase the maintenance workload of the electrician and fitter and the work of demolition and installation; ( 3 ) when the explosive blasting method is used to blow large blocks in the funnel and handle the blockage, use the vibrating miner to mine, and the bare drug pack There are strict restrictions on the placement and dosage (not to exceed 0.5kg ).
Gravity self-slip transport is limited by the inclination of the ore body, the stability of the surrounding rock, the structure of the floor and the nature of the ore. The inclination of the ore body is generally greater than 50°~55° . When the ore contains more ore, the humidity is large. When the viscosity is strong, it is greater than this number. In recent years, many mines have promoted vibrating miners to replace all kinds of leak gates of gravity ore mining, and the effect is very significant.
The wooden funnel used for gravity self-slip operation is replaced by a light vibrating miner (weight 500kg , power 150kw ), which has great significance in saving pit wood . According to the statistics of each tungsten mine, the pit wood used for a wooden funnel, including maintenance, is about 2.0m3 , and the amount of ore of a wooden funnel is 1kt . Based on this calculation, the Jiangxi tungsten mine system is based on the current annual output. In the mining and transportation, the vibration and ore is fully promoted, and the annual saving of the pit is about 7,800 m3 , and the mining workers are freed from the cumbersome and dangerous mining operations, which is conducive to safe production. The disadvantages of replacing the wooden funnel with a vibrating miner are:
( 1 ) The initial investment is relatively large. The purchase of a light vibrating miner is 1,500 yuan, which is 3~4 times that of the wooden funnel . If the vibrating ore machine can be reused more than 4 times, the cost will be lower than that of the wooden funnel; ( 2 ) It is necessary to increase the maintenance workload of the electrician and fitter and the work of demolition and installation; ( 3 ) when the explosive blasting method is used to blow large blocks in the funnel and handle the blockage, use the vibrating miner to mine, and the bare drug pack There are strict restrictions on the placement and dosage (not to exceed 0.5kg ).
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