Wheel Excavator,Wheel Mini Excavator,1Ton Mini Wheeled Excavator,Wheeled Excavator Shandong Hexu Machinery Equipment Co.,Ltd , https://www.sdhxmachinery.com
    1 When the ore body or a considerable part of the ore body is above the local erosion reference surface, it should be developed with a flat;
    2 When using flat-level transportation, it is advisable to use ore to lower the ore; when the production scale is small, the well-flowing facilities are large, the ore is cohesive or the rock formation is not suitable for setting the shaft, the shaft, inclined well or the trackless self-equipment can be used. Directly shipped out of the surface;
    3 When the main rail of the double-track transport is long and the rock formation is not stable, and there are no other conditions, it is advisable to use a single-track double-flat raft;
    4 When determining the main flat section, the requirements for the largest piece of equipment and related safety clearances in the pit shall be met.
    Second, the development of inclined wells should meet the following requirements:
    1 If the burial depth is less than 300m , the ore body with moderate inclination or inclination is more than 300m , and it is better to use the inclined inclined shaft to develop; the ore body has a longer strike direction, and the steeply inclined ore body with burial depth less than 200m can be developed by flank inclined shaft; A gently inclined thin ore body with a small change in inclination angle should be developed by using an intrapulmonary inclined shaft;
    2 The vertical distance between the roof of the inclined wellbore and the ore body should be greater than 15m ; the width of the security pillars on both sides of the inclined wellbore should not be less than 8m ;
    3 series of inclined shafts should not be changed in the middle of the slope and adopt the two-way lane. When the two-way lane is required, the distance between the lanes of the lanes should be greater than 8m ;
    4 The lower yard of the inclined shaft should be set to avoid the diverticulum ;
    5 pedestrians should have a sidewalk for the transportation inclined shaft. Sidewalk effective width of not less than 1.0m, the effective not less than the clear height of 1.9M; inclined slope of 10 ° ~ 15 ° is provided when the stepping pedestrian; 15 ° ~ 35 ° is provided when stepping and handrails; 35 ° should be greater than Set up a ladder; an inclined shaft for rail transportation, and an isolation facility between the driveway and the sidewalk;
    6 The gap between the inclined shaft rail transportation equipment and the transportation equipment and the support shall not be less than 0.3m ; the gap between the belt conveyor and the protruding parts of other equipment shall not be less than 0.4m .
    Third, the slope road development should meet the following requirements:
    1 For small and medium-sized mines with a depth of less than 300m , slope roads can be used for development, and the slope roads should be outside the rock movement range; when conditions permit, it should be replaced by a retractable arrangement;
    2 The slope of the slope should not be greater than 12 % when transporting ore, and should not be greater than 15 % when transporting equipment materials ; the slope of the curve should be appropriately reduced;
    3 The length of the ramp is every 300m ~ 400m , and the gentle slope with the slope not more than 3 % and the length not less than 20m and meeting the requirements of the wrong car should be set ;
    4 The turning radius of the main road of the large-scale trackless equipment shall not be less than 20m , and the turning radius of the stage ramp shall not be less than 15m ; the turning radius of the slope of small and medium-sized trackless equipment shall not be less than 10m ; the outer side of the curved section shall be raised, the connecting curve of the slope point A smooth vertical curve can be used;
    5 Slope roads shall be provided with sidewalks or shelters; the width of the sidewalk shall not be less than 1.2m , and the effective net height of the sidewalk shall not be less than 1.9m ; the spacing of the escapement shall not exceed 15m in the curved section and shall not exceed in the straight section. 30m . The height of the dodge chamber should not be less than 1.9m , and the depth and width should not be less than 1.0m ;
    6 The gap between the trackless transport equipment and between the trackless transport equipment and the support shall not be less than 0.6m ;
    7 Slope road surface should be concrete, asphalt or graded gravel road.
    4. The development of shafts shall comply with the following provisions:
    1 The ore body is distributed below the local erosion reference surface, the steep inclined ore body with a depth of more than 300m or the gently inclined ore body with a dip angle of less than 20 ° should be developed by using a shaft;
    2 When the main well is a bucket well and is adjacent to the plant, the bucket unloading facility should be connected to the original mine bin of the plant;
    3 For large mines with a depth of more than 600m and a long service life, the main lifting shaft can be excavated in stages, and the service life of one drilling depth should be greater than 12a ;
    4 equipped with two cages that are independent of each other in power, and the hoist is a double-circuit power supply shaft, which can be used as a safety exit, without a ladder room; when other shafts are used as safety exits, there should be a well-equipped ladder room. .
    5. The selection of the mineral deposit development plan shall comply with the following provisions:
    1 The development plan should be based on the characteristics of deposit deposits, engineering geology and hydrogeology, exploration degree of ore deposits, ore reserves, etc., combined with surface topographic conditions, external transportation systems within the site, industrial site layout, production and construction scale, etc. A feasible development plan for general analysis, and 2 to 3 programs should be selected for detailed technical and economic comparisons;
    2 Large-scale mines with deep burial or large mining area and long service life can be developed by stages or by districts;
    3 The deposit storage conditions, topography, and other factors exploration, mining industry arrangement requires binding site, a single pioneering manner adopted in the technical, economic unreasonable, can be combined to develop ways.
    First, the development of Pingyi should meet the following requirements: