At present, China Jinling iron ore, the national iron ore, copper, silver-hui Copper Mountain ore mine in Hebei, China copper copper, iron ore and so the temple using this method. The characteristics of this method are: (1) A common feature of the open field method belonging to the empty field method is also the two-step mining, the first mining room, the rear mining column, and finally the empty space that has been cut as planned. (3) To open the trough - since the working face of this mining method is vertical, before the start of the mining work, in addition to the bottom and the leakage at the bottom of the mine, the cutting trough must be opened. The thin ore is made by cutting the vertical groove as the blasting free surface. (4) The ore that has fallen off is released from the bottom of the mine, (ie, staged mining, rather than sub-zonal mining, which is different from the Zambian subsection method mentioned earlier). As the work surface progresses, the goaf continues to expand. (5) There is no ore left in the mine, and it is kept in an empty field. The workers work in the small section roadway and do not enter the goaf, which is safer.
Technical parameters
Name
specifications
1
2
3
Product introduction
Luoyang Hongxin Heavy Machinery CO., TLD. can design and product all kinds of flying shear which used in metallurgy rolling steel industry.
Company Introduction
Hongxin is dedicated to produce reducers, hoists, crushers, Ball Grinding Mills and the equipments of screening, coal washing, metallurgy and cement, and replacement parts. Meanwhile, we provide the perform maintenance service for various series of equipments. There are 52 large-scale equipments applied into the manufacturing process, such as T200 CNC floor boring and milling machine, YK 73125 CNC molding gear grinding machine, YK322B CNC molding gear grinding machine, Y3200 gear hobbing machine, Y1600 CNC gear sharper, 4m vertical lathe, 6.3m CNC vertical lathe, T110 CNC boring machine, and 52 middle-sized productive and assistive equipments, which integrate strong manufacturing and processing capability with complete managing system of production and technology, quality management system and comprehensive testing measures.
Certificates
Contacts
Flying Shear Flying Shear,Flying Shear Cutting Machine,High Speed Flying Shear,Ribbed Steel Bars Flying Shear Luoyang Hongxin Heavy Machinery CO., TLD. , https://www.hxreducer.com
(2) This method is a mining method that divides the full height of the mine into several sections and drills the natural support of the thin ore in the section roadway. This is the method of making vertical vertical fan-shaped holes in the section roadway (the work surface is sturdy).
Overview of the mining method in the staged rock drilling stage
Sublevel Room drilling segment, it is segmented rock, stage a kind of ore mining method, widely applied in our country, according to 1971 statistics, the domestic ten kinds of major non-ferrous metal mines, the proportion of use It reached 16.27%, second only to the shallow hole retention method.