Perforation blasting, mining, transportation, earth dumping, drainage, and recessed ventilation
1. Perforated blasting equipment:
200～380mm roller drill, 100～250mm down-the-hole drill, rock drill ; Mine explosive: select the corresponding explosive according to the nature of the rock and environmental conditions; Hole network parameters: good effect, less money, hole spacing, row spacing, dose , detonation sequence, explosion pile; wear location: according to the location specified by the mining plan construction, is an important factor to adjust the stripping ratio;
2, mining work equipment:
Electric shovel (19m3), hydraulic shovel, backhoe, front loading machine, auxiliary equipment; working surface parameters: step height, length of mining area, mining width, working flat width, slope angle, sloping angle, production stripping ratio, Finally, the slope angle and slope are stable;
3. Mineral rock transportation and transportation tasks:
Ore from the face to the processing plant, from the rock face to the dump; mode of transport: motor transport, railway transport, tape transport, combined transport; continuous, intermittent; transport equipment: mining trucks (200t), electric wheel ( 350t), locomotive, mine car, tape (coarse crush); related work: road design, railway and station design;
4. Dumping work:
Transporting the stripped material to a dedicated site for safe disposal is one of the main production processes for open pit mining. If the dumping space is insufficient, it will hinder the continuous production of the mine. Dumping methods: car transport dumping, railway transport dumping, tape strip Earthmoving excavation; Dumping site construction: effective use of volume, slope stability, covering soil and land;
5, the danger of water leakage and drainage:
Equipment efficiency is low, engineering progress is slow, and slope is destabilized; water inrush factors: surface water, rock water, water in fracture zone, water in waste pit, unsealed; anti-discharge method: intercepting ditch, river retaining bank River diversion, shaft dewatering, gravity/concentrated drainage.
EN1092-1 Type 01 flange refers to plate flange, or sop flange.
It's similar to DIN2576 slip on flanges.
Slip on weld fange can be slid onto a pipe and then welded in place. It is made of carbon steel, alloy steel, and stainless steel. The industrial processes come into die forging,and machining, we can provide a wide range of slip on weld flanges, following on standards like ASME B16.5, ASME B16.47, DIN 2634, DIN 2630, and so on. Slip on flange is a type of flange that extends steel pipes, pipe fittings, etc, into the flange and connects with equipment or pipelines through fillet welds. This flanges have short neck, which increases the strength of the flange and improves the bearing capacity of the flange. So it can be used on higher pressure pipelines.
En1092 Type01 Steel Plate Flange,Type 01 Pn6 Plate Flange,Type 01 Flat Flange,Type 01 Carbon Steel Flat Flange
New Century Forging Co., Ltd , https://www.ncmflange.com