Sub-column sublevel caving method Because a certain amount of bottom column is left, the bottom column mineral amount can be recovered through special recovery design. However, due to the deterioration of mining conditions, the recovery rate is low, resulting in waste of resources. In order to solve the shortcomings of the bottom column of the sublevel caving method, the bottomless sublevel caving method has been popularized at home and abroad. The main feature is that the stage is divided into sections by segmented roadway, and the upper and lower sections are fed back. When mining, the upper fan-shaped medium-deep hole is drilled in the approach, with a small collapse step. The collapsed mine is squeezed into a collapsed area filled with waste rock. The caving ore is carried out from the end of the recovery tunnel and is transported to the mine by means of mining equipment. As the ore is released, the covered rock descends, filling the goaf and achieving ground pressure management.
According to the different parts of the nugget shipment equipment, there is a non-pillar sublevel caving method with a railless transportation scheme and a rail transportation scheme. The former's mining equipment is a scraper, the latter is a rock loader and a mine car.
According to the different parts of the nugget shipment equipment, there is a non-pillar sublevel caving method with a railless transportation scheme and a rail transportation scheme. The former's mining equipment is a scraper, the latter is a rock loader and a mine car.
Product categories of Fryer, fried kind of snack, all kinds of nuts and meat, fish and so on.We can provide customers with personalized Fryer to meet customer needs.
We are specialized manufacturers with 15 years of extruder experience, we have the perfect after-sales service and technical support. Look forward to your cooperation!
Fryer Machine, Batch Fryer, Continuous Fryer, Continuous Fryer Machine
Jinan Chenyang Technology Co., Ltd. , https://www.cyricestrawproductionline.com