System evaluation method for block distribution after ore blasting

A system evaluation and degree distribution technology, applied in the direction of material analysis, image analysis, and material analysis through optical means, can solve the problems of extensive promotion restrictions, labor and time-consuming measurement, empirical formula errors, etc., and achieve extensive promotion value, good Economic benefits, the effect of accurate evaluation

Active Publication Date: 2015-03-11
ANSTEEL GRP MINING CO LTD
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  • Description
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Problems solved by technology

The direct measurement method in the traditional sense is to directly sample and analyze the blasting products to obtain the information on the particle size distribution of the blast pile. Due to the large number of rocks on the surface of the blast pile, this analysis method is labor-intensive and time-consuming, and the cost is high. , the wide application is greatly limited; and in recent years, the mathematical modeling method of mine blasting, according to the unit consumpt

Method used

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  • System evaluation method for block distribution after ore blasting
  • System evaluation method for block distribution after ore blasting
  • System evaluation method for block distribution after ore blasting

Examples

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Comparison scheme
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Example Embodiment

[0040] Example 1

[0041] Such as figure 1 with figure 2 As shown, a selected photo with a good overall distribution of blasting fragmentation is calculated using 8×8 square grids with an area of ​​b×b each. Value, 32 of the 64 squares in the picture are counted as 1, 32 are counted as -1, and the total count is 32+(-32)=0, indicating that the blasting fragmentation of the ore is the best blasting fragmentation diameter b acceptable to the crusher.

Example Embodiment

[0042] Example 2

[0043] Such as image 3 with Figure 4 As shown, a selected photo with a small overall distribution of ore blasting fragmentation size is calculated using 8×8 square grids with an area of ​​b×b each. Value, 23 of the 64 squares in the picture are counted as 1, 41 are counted as -1, and the total count is 23+(-41)=-18, indicating that the blasting fragmentation of the ore is the smallest blasting fragmentation diameter a that the crusher can accept.

Example Embodiment

[0044] Example 3

[0045] Such as Figure 5 with Image 6 As shown, a selected photo of ore blasting with a smaller overall size distribution is calculated using 8×8 square grids with an area of ​​b×b each. Value, 10 of the 64 squares in the picture are counted as 1, 54 are counted as -1, and the total count is 10+(-54)=-44, indicating that the blasting fragmentation of the ore is less than the minimum blasting fragmentation diameter a that the crusher can accept. The overall announcement is not suitable for entry into the crusher.

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Abstract

The invention relates to a system evaluation method for block distribution after ore blasting. The system evaluation method is characterized in that various ore blasting muck piles with uneven sizes formed after mining blasting are selected for shooting; a graduated scale is placed on the surface of the ore blasting muck piles to be shot; the ore blasting muck piles are shot using a method for shooting standard photos in a positive and vertical manner; the total shot area is larger than or equal to 10% of the surface area of the ore blasting muck piles; the photos are processed using the PHOTOSHOP software, a square grid is set on the selected pictures, and the selected pictures are acted by taking the square grid as a standard and are analyzed and evaluated one by one. The system evaluation method for block distribution after ore blasting has the advantages that the block distribution after ore blasting can be easily and quickly analyzed; the blasting quality can be directly and accurately evaluated; the blasting design can be optimized and adjusted according to the analysis result; the system evaluation method has a wide promotion value and can create favorable economic benefits in application.

Description

[0001] technical field [0002] The invention belongs to the technical field of ore blasting lumpiness distribution evaluation, in particular to a system evaluation method for ore blasting lumpiness distribution. Background technique [0003] Factors affecting the distribution of ore blasting fragmentation include: explosive parameters, blasting parameters, rock mass structure and its mechanical characteristics and other factors. The block size and composition of ore after blasting are not only the main information reflecting blasting design and operation level, but also affect subsequent production processes such as shovel loading, crushing, transportation, root removal, mineral processing, etc., thus affecting mine production costs and efficiency. If the blasting ore lumpiness is large, secondary blasting is required, and if the blasting ore lumpiness is small, the blasting cost will increase. Therefore, it is necessary to find an effective and practicable method for de...

Claims

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Application Information

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IPC IPC(8): G01N21/84G06F19/00G06T7/00
Inventor 孙厚广潘鹏飞韩忠和范晓明王乐
Owner ANSTEEL GRP MINING CO LTD
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