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Open air mine semicontinuous conveying system single line slope conveying designing method

A technology of transportation system and design method, which is applied in surface mining, earthwork drilling, underground mining, etc., can solve the problems of large amount of stripped rock and high stripping ratio, and can reduce the amount of stripped rock, increase the slope angle, reduce the The effect of production stripping ratio

Inactive Publication Date: 2004-12-22
UNIV OF SCI & TECH BEIJING
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  • Summary
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AI Technical Summary

Problems solved by technology

According to the foreign design and actual mine production, the transportation road of the automobile-belt semi-continuous transportation process generally adopts a double-lane design, and the designed width of the double-lane platform is 24-28m; the longitudinal slope of the designed road is 7-8%, resulting in a large amount of rock stripping, High stripping ratio

Method used

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Embodiment Construction

[0007] A mine has an annual output of 12 million t / a of ore, and the total amount of mining and stripping is 48 million t / a.

[0008] Extending from the +104m main access ditch to -350m at the bottom of the stope, it is the main transportation road for the stope. The crushing station is at a level of -185m, and the original design of the road between +104m and -185m is a double-lane road, which is changed to a single-lane connecting road in the present invention. %, the middle staggering area is set at the buffer platform between the two slope sections, the gentle slope section is 50m long, and the sum of the width of the transport platform and the width of the safety platform is 27.7m. The road between -185m and -260m is the production and transportation road, and the ore rock below the final working level of the movable crushing station will be transported to the movable crushing station by car through this road. . The road between -260m and -305m is also a production and ...

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Abstract

In the invention, transportation from exploitation breaking station down to bottom of surface mine is designed according to normal motor vehicle transportation, and main transportation road includes dual lanes. Character is that road going up from exploitation breaking station is designed according to condition of single line and high slope. Width of platform of transportation line or single vehicle is 14-19m, longitudinal slope as 12-15%. Buffering platforms are setup in middle staggering zone in width 25-30m and length 40-60m of gentle slope in use for staggering vehicles or breakdown maintenance. The invention increases slope angle, reduces quantity of stripping rock, and stripping ratio.

Description

technical field [0001] The invention belongs to the field of mining, in particular to a design method for single-line steep-slope transportation of an open-pit mine vehicle-belt semi-continuous transportation system. Background technique [0002] As the mining depth of open-pit mines continues to decrease, the distance of ore and rock transportation continues to increase, and the efficiency of equipment transportation continues to decline, resulting in an increase in the cost of ore. When the mining depth of the open pit mine exceeds 300m, the car-tape semi-continuous transportation has obvious advantages. The foreign production practice shows that: the car-belt semi-continuous transportation process is the development direction of the deep concave open-pit mine transportation. According to the foreign design and actual mine production, the transportation road of the automobile-belt semi-continuous transportation process generally adopts a double-lane design, and the design...

Claims

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Application Information

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IPC IPC(8): E01C1/00E21C41/26
CPCY02A30/60
Inventor 蔡美峰郝树华
Owner UNIV OF SCI & TECH BEIJING
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