Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Muckpile and scooping boundary measurement setting-out method

A technology of measurement stakeout and blast pile, which is applied in the direction of measuring devices, measuring instruments, surveying and navigation, etc., can solve the problems of lack of technical basis for stakeout methods, loss dilution, less research on stakeout of shovel-loaded ore-rock boundary, etc., and achieve improvement The effects of piercing efficiency, increasing production capacity, and reducing mining loss and dilution rate

Active Publication Date: 2017-04-26
CHINA GOLD INNER MONGOLIA MINING
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In each of the above situations, it is necessary to stake out the shoveling boundary line on the site blast pile, and the stake out method lacks strict technical basis, and the stake out result may cause a large loss and dilution, but there is no way to investigate. As a design principle, there are few studies on the setting out of the shovel-loaded ore-rock boundary when mixed explosions occur

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Muckpile and scooping boundary measurement setting-out method
  • Muckpile and scooping boundary measurement setting-out method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The method for measuring and setting out the boundary line of explosive pile shoveling includes the following steps:

[0023] (1) Measure the occurrence of solid ore and rock in the blasting block with obvious color difference, measure the ore and rock dispersion of the blasting pile virtual body, find the blasting distribution law, and calculate the average blasting loose coefficient and coefficient dispersion error, pay attention to distinguish a free surface , two free surfaces and the same number of rows of blasting holes should be statistically calculated separately, and the number of measurements in each case should be more than 13 blasting piles:

[0024] Loose coefficient k= V 虚 / V 实 = imaginary volume of blast pile / real volume of block before blasting;

[0025] (2) Measure the shovel slope angle of the electric shovel and excavator, calculate the shovel slope angle of the explosive pile section below the section height of 2 meters and the shovel slope angle o...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a muckpile and scooping boundary measurement setting-out method; the method comprises: planning according to certain rules in accordance with the parameters, such as muckpile bulk coefficient, muckpile shape, scooping slope angle, and orebody occurrence state, measuring muckpile shape when rock-ore boundary is less than 10 m away from pre-blasting slope crest, and calculating a setting-out position by using the method of approach; when the rock-ore boundary is greater than 10 m away from the pre-blasting slope crest, calculating the setting-out position directly, wherein extrapolation distance is a distance from a boundary point to a part 2 m off the last row of hole lines, multiplied by bulk coefficient of this position. The problem of how to perform precise separate scooping and setting-out in rock-ore mixed blasting is well solved, mining loss is reduced, and dilution rate is reduced effectively; in addition, perforating efficiency of a related section is improved, perforating, blasting and scooping cycle time of the related section is shortened, and the productivity of an operation line is improved.

Description

technical field [0001] The invention relates to the technical field of open-pit mining, in particular to a method for measuring and setting out boundaries of blast pile shoveling. Background technique [0002] In the process of open-pit mining, separate blasting and separate mining should be carried out according to the boundary of the ore body. However, in the actual construction process, due to the ore body and its changes, mixed explosions inevitably occur. What often happens is that the mixed blasting stack is close to the thickness of the removal. , generally do not pack. There are generally two cases when mining personnel do piercing and blasting and shoveling design: one is that when low-grade ore and surrounding rock are mixed and blasted, the design is carried out according to the principle of loss and dilution; Dilute the ore near the boundary to a certain grade value. In each of the above situations, it is necessary to stake out the boundary line of shoveling on...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01C15/00
CPCG01C15/00
Inventor 余建国王晓东范国敏
Owner CHINA GOLD INNER MONGOLIA MINING
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com