In actual work, various types of stope bottom structures and stope moving methods can be used due to the different conditions of the ore body, the method of collapse, and the transport equipment used. 1. The labor consumption of forming the bottom structure accounts for 20-40% of the total labor consumption per ton of ore. 2. The amount of ore in the bottom column accounts for 15-20% of the ore mineral volume, or even larger, and the ore loss rate of the bottom column is relatively large, generally about 30~60%, so the design of the bottom structure of the stope is correct. Whether or not, there is a significant impact on the loss of mining methods and the indicators of depletion. V-Shape Notch Mold,V-Shape Notch Cutting Die,Cathode V-Shape Notch Cutting Mold,Cathode V-Shape Notch Punch Mould Guangdong Rixin Precision Technology Co., Ltd. , https://www.nissontooling.com
The stopway movement and the bottom structure have a major impact on the technical and economic indicators of the recovery. It is manifested in the following aspects:
The cost of the stope should be 10-20%, or even larger, and the individual mines reach 50%, which is second only to the cost of mining. Stope haulage and costs related to the number of haulage methods, per ton of ore, such as a VCR Method FANKOU lead zinc ore haulage costs, diesel oil scraper ore is 3.53 yuan, the mining machine is equipped with a vibration The motor car is 0.6 yuan. The Dajishan tungsten mine is used in the stage mining method by ZCZ-26 type rock loader. The gravity is discharged from the water funnel and the vibrating ore is mined. The transportation cost per ton of ore is 1.69 yuan and 0.44 yuan. and 0.37 yuan, Yunnan Province in the ore Fengshan door copper ore, the ore having a bottom scraper to the sublevel caving, instead forced vibration drawing stage caving, the cost per ton of ore mining saves $ 2.