CN104406983B - A kind of System Assessment Method of ore blast fragmentation size distribution - Google Patents
A kind of System Assessment Method of ore blast fragmentation size distribution Download PDFInfo
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Abstract
The present invention relates to a kind of System Assessment Method of ore blast fragmentation size distribution, it is characterized in that the uneven quick-fried heap of ore of all size formed after choosing mine blasting is used as the quick-fried heap of ore for shooting, the graduated graduated scale of mark is put on the captured quick-fried heap surface of ore, the method for shooting standard photographs using front vertical shoots to the quick-fried heap of ore, 10% of the photo gross area sum of all shootings not less than the quick-fried heap surface area of explosion, captured photo is inserted in PHOTOSHOP softwares, square net is set in PHOTOSHOP softwares, in photo selected by being acted on the basis of this square net, selected photo is analyzed and evaluated one by one.The advantage of invention is：The distribution situation for analyzing ore fragmentation after explosion that can be simple and quick, is directly and accurately evaluated blasting quality, and explosion design is optimized and adjusted according to analysis result, with value is widely popularized, good economic benefit can be produced after.
Description
Technical field
The invention belongs to ore blast fragmentation size Evaluation on distribution technical field, more particularly to a kind of ore blast fragmentation size distribution
System Assessment Method.
Background technology
The factor of influence ore blast fragmentation size distribution includes:Explosive parameter, blasting parameter, rock mass structure and its mechanical characteristics
Etc. various types of factor.Lumpiness size and composition after ore explosion are not only reflection explosion design with level of operation
Main information, but also affect follow-up shovel dress, broken, transport, eliminate the production technologies such as foundation, mineral processing, so that
Affect mining production cost and efficiency.Explosion ore fragmentation is larger, needs secondary blasting, and explosion ore fragmentation is smaller then quick-fried
It is broken into this increase.Therefore, a kind of effective and practicable exploded ore lumpiness assay method is found, no matter optimization explosion is set
Meter parameter, or it is all very necessary to reduce mining cost on the premise of lumpiness requirement is met.Traditional direct survey
Amount method, is analyzed to the generation direct sample after explosion, so as to obtain the information of quick-fried heap size distribution, this analysis side
Method is more due to outdoor quick-fried heap surface sillar quantity, measures time-consuming, and relatively costly, extensive use is very limited；And it is near
Rock blasting mathematics modeling over a little years, it is intensive according to mining explosive unit consumption, ore lithology, array pitch, aperture, pitch-row, blasthole
The parameters such as coefficient, burden, explosive wave impedance, short-delay time set up Mathematical Modeling, field experience formula analysis ore explosion
Lumpiness, the method lacks the interpretational criteria for different mine blasting lumpiness, and its empirical equation there is also certain error,
It is widely popularized and is also very limited.This patent elaborates to be distributed with vertical photography standard photographs system evaluation ore blast fragmentation size
New method, analysis blasting quality effect that can be simple and quick.
The content of the invention
It is an object of the invention to provide a kind of System Assessment Method of ore blast fragmentation size distribution, shone with vertical photography standard
The distribution situation of piece system evaluation ore blast fragmentation size, analysis blasting quality effect that can be simple and quick.
The purpose of the present invention is realized by following technical proposals：
The System Assessment Method of a kind of ore blast fragmentation size distribution of the invention, it is characterised in that choose shape after mine blasting
Into the uneven quick-fried heap of ore of all size as the quick-fried heap of ore for shooting, be put on the captured quick-fried heap surface of ore and indicate quarter
The graduated scale of degree, the method for shooting standard photographs using front vertical shoots to the quick-fried heap of ore, and the photo of all shootings is total
Area sum is inserted in image processing software captured photo not less than the 10% of the quick-fried heap surface area of explosion, according to broken
Size and the size with reference to graduated scale in photo that machine is required ore fragmentation, set square net in image processing software
Lattice, the size that the ore fragmentation of described disintegrating machine is required is a, b and c, and wherein a ﹤ b ﹤ c, described square net is m × m
It is individual, each lattice area wherein in square net () it is a × a, b × b and c × c, with this square net as base
Standard is acted in selected photo, and selected photo is analyzed one by one,
Wherein：
The acceptable minimum ore blast fragmentation size diameter cm of a-disintegrating machine；
The acceptable optimal ore blast fragmentation size diameter cm of b-disintegrating machine；
The acceptable maximum ore blast fragmentation size diameter cm of c-disintegrating machine；
The value number of m × m-grid.
The System Assessment Method of above-mentioned ore blast fragmentation size distribution, comprises the following steps that：
1）Each ore area accounts for each lattice area and is calculated as 1 more than or equal to 50% in setting photo, and total number is x,
Each ore area accounts for each lattice area and is calculated as -1 less than 50% in photo, and total number is y, calculates total using equation below
Count value：
=x·1+y·(-1)；
TaleCloser to 0, demolition effect is better；
TaleLess than 0, illustrate that this separate explosion ore fragmentation is smaller；
TaleMore than 0, illustrate that this separate explosion ore fragmentation is larger；
2）Select the photo of ore fragmentation totally less than b first, use m × m, the area of each lattice be a
The square net of × a sizes is counted to the ore in photo, in each lattice in the photo 1 and -1
Number is counted respectively, and is calculated with above-mentioned total count value formula, if total count valueClose to 0, ore fragmentation is big in illustrating the photo
Small minimum ore fragmentation acceptable for disintegrating machine；
By above-mentioned photo again using m × m, the area of each lattice is the square net of b × b sizes in photo
Ore counted, in each lattice in the photo 1 and -1 number count respectively, and use above-mentioned total count value
Formula is calculated, if total count valueFor, illustrate ore fragmentation size minimum ore deposit acceptable for disintegrating machine in the photo
Stone degree；
3）One ore fragmentation of reselection is generally larger than the photo of b, using m × m square net, each lattice
Area is counted for the square net of c × c sizes to the ore in photo, 1 in each lattice in the photo
Number with -1 is counted respectively, and is calculated with above-mentioned total count value formula, if total count valueClose to 0, the photo chats is illustrated
Stone degree size maximum ore fragmentation acceptable for disintegrating machine；
By above-mentioned photo again with m × m, the area of each lattice is the square net of b × b sizes in photo
Ore is counted, and 1 and -1 number is counted respectively in each lattice in the photo, and public with above-mentioned total count value
Formula is calculated, if total count valueFor, also illustrate ore fragmentation size maximum ore deposit acceptable for disintegrating machine in the photo
Stone degree；
Both with m × m, the area of each lattice for b × b sizes square net to all shooting photos with above-mentioned
Total count value formula is calculated, and obtains total count valueFor~Between ore fragmentation size be a~c, be used in combinationIt is average
Value size, evaluates the situation of ore blast fragmentation size distribution.
Ore fragmentation between this~c is capable of the suitable ore fragmentation of pan feeding for disintegrating machine, while the photograph analyzed
Work as total count value in piece﹤Or>Ore fragmentation be not suitable for disintegrating machine be selected in.
The value number of m grids of the present invention is 5m10。
Invention advantage is：The distribution situation for analyzing ore fragmentation after explosion that can be simple and quick is directly and accurately right
Blasting quality is evaluated, and explosion design is optimized and adjusted according to analysis result, with value is widely popularized, after
Good economic benefit can be produced.
Brief description of the drawings
Fig. 1 is the ore blast fragmentation size preferable photo of size overall distribution.
Fig. 2 is insertion m × m in the ore blast fragmentation size preferable photo of size overall distribution（M=8) the pros of individual lattice
The photo that shape grid is counted.
Fig. 3 is the ore blast fragmentation size less photo of size overall distribution.
Fig. 4 is insertion m × m in the ore blast fragmentation size less photo of size overall distribution（M=8) the pros of individual lattice
The photo that shape grid is counted.
Fig. 5 is the smaller photo of ore blast fragmentation size size overall distribution.
Fig. 6 is insertion m × m in the smaller photo of ore blast fragmentation size size overall distribution（M=8) the pros of individual lattice
The photo that shape grid is counted.
Fig. 7 is the larger photo of ore blast fragmentation size size overall distribution.
Fig. 8 is insertion m × m in the larger photo of ore blast fragmentation size size overall distribution（M=8) the pros of individual lattice
The photo that shape grid is counted.
Fig. 9 is the bigger photo of ore blast fragmentation size size overall distribution.
The photograph that Figure 10 is counted for insertion square net in the bigger photo of ore blast fragmentation size size overall distribution
Piece.
Figure 11 is with m × m（M=8) square net of individual lattice is counted, taleWith ore blast fragmentation size size
Relation curve.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples.
Embodiments of the invention be selected photo is used 8 × 8, the area of each lattice be b × b sizes
Square net is counted, and calculates itValue, system evaluation is carried out to the distribution of ore blast fragmentation size.Used in example below
Image processing software be PHOTOSHOP.
Embodiment 1
As depicted in figs. 1 and 2, a selected ore preferable photo of blast fragmentation size overall distribution, using 8 × 8, it is every
The area of individual lattice calculates it for the square net of b × b sizesValue, is counted as 32 of 1 in 64 grids of the picture,
It is 32 to be counted as -1, and tale is32+ (- 32)=0, illustrates the ore blast fragmentation size for disintegrating machine is acceptable
Optimal blast fragmentation size diameter b.
Embodiment 2
As shown in Figure 3 and Figure 4, the selected ore blast fragmentation size less photo of size overall distribution, using 8 × 8
Individual, each lattice area calculates it for the square net of b × b sizesValue, 1 is counted as in 64 grids of the picture
23, it is 41 to be counted as -1, and tale is23+ (- 41)=- 18, illustrate the ore blast fragmentation size for disintegrating machine can
The minimum ore blast fragmentation size diameter a of receiving.
Embodiment 3
As shown in Figure 5 and Figure 6, the smaller photo of selected ore blast fragmentation size size overall distribution, using 8 × 8
Individual, each lattice area calculates it for the square net of b × b sizesValue, 1 is counted as in 64 grids of the picture
10, it is 54 to be counted as -1, and tale is10+ (- 54)=- 44, illustrate that the ore blast fragmentation size is less than broken function
Enough minimum ore blast fragmentation size diameter a for receiving totally are announced and are not suitable for being selected in into disintegrating machine.
Embodiment 4
As shown in Figure 7 and Figure 8, the larger photo of selected ore blast fragmentation size size overall distribution, using 8 × 8
Individual, each lattice area calculates it for the square net of b × b sizesValue, 1 is counted as in 64 grids of the picture
39, it is 25 to be counted as -1, and tale is39+ (- 25)=14, illustrate the ore blast fragmentation size for disintegrating machine can
The maximum ore blast fragmentation size diameter c of receiving.
Embodiment 5
As shown in Figure 9 and Figure 10, the bigger photo of selected ore blast fragmentation size size overall distribution, using 8 × 8
Individual, each lattice area calculates it for the square net of b × b sizesValue, 1 is counted as in 64 grids of the picture
52, it is 12 to be counted as -1, and tale is52+ (- 12)=40, illustrate that the ore blast fragmentation size is more than broken function
Enough maximum ore blast fragmentation size diameter c for receiving are not suitable for selected into disintegrating machine.
It is b × b sizes to the area of captured n photo m × m, lattice to use said system evaluation method
Square net count, and use average valueSize, evaluate the situation of ore blast fragmentation size distribution, count closer to 0, it is quick-fried
Broken effect is more preferable；Count value is got over less than 0, and explosion ore fragmentation is smaller；Count value is got over more than 0, and explosion ore fragmentation is bigger.Together
When the system evaluation also fully demonstrate the System Assessment Method of this ore blast fragmentation size distribution there is the superior of simple and fast
Property.With m × m, lattice area is counted for the square net of b × b in photo, count valueFor~Between ore deposit
Stone degree is a~c, and the ore of this size is broken required ore dressing plant.
Claims (1)
1. the System Assessment Method that a kind of ore blast fragmentation size is distributed, it is characterised in that what is formed after selection mine blasting is various big
The small uneven quick-fried heap of ore is put into the graduated scale of mark as the quick-fried heap of ore for shooting on the captured quick-fried heap surface of ore
Chi, the method for shooting standard photographs using front vertical shoots to the quick-fried heap of ore, the photo gross area sum of all shootings
Not less than the 10% of the quick-fried heap surface area of explosion, captured photo is inserted in image processing software, according to disintegrating machine to ore
The size and the size with reference to graduated scale in photo of lumpiness requirement, set square net in image processing software, described
The size of the ore fragmentation requirement of disintegrating machine is a, b and c, and wherein a ﹤ b ﹤ c, described square net is m × m individual, wherein just
Each lattice area in square net is a × a, b × b and c × c, is acted on the basis of this square net selected
Photo in, selected photo is analyzed and evaluated one by one,
Wherein：
The acceptable minimum ore blast fragmentation size diameter cm of a-disintegrating machine；
The acceptable optimal ore blast fragmentation size diameter cm of b-disintegrating machine；
The acceptable maximum ore blast fragmentation size diameter cm of c-disintegrating machine；
The value number of m × m-grid, the number of described m is 5≤m≤10；
Comprise the following steps that：
1) ore area accounts for each lattice area and is calculated as 1 more than or equal to 50% in setting photo, and total number is x, in photo
Ore area accounts for each lattice area and is calculated as -1 less than 50%, and total number is y, and total count value is calculated using equation below：
μ=x1+y (- 1)；
1. tale μ is closer to 0, and demolition effect is better；
2. tale μ is less than 0, illustrates that this separate explosion ore fragmentation is smaller；
3. tale μ is more than 0, illustrates that this separate explosion ore fragmentation is larger；
2) photo of ore fragmentation totally less than b is selected first, uses m × m, the area of each lattice is for a × a is big
Small square net is counted to the ore in photo, 1 and -1 number point in each lattice in the photo
Do not count, and calculated with above-mentioned total count value formula, if total count value μ is close to 0, ore fragmentation size is broken in illustrating the photo
The acceptable minimum ore fragmentation of broken machine institute；
By above-mentioned photo again using m × m, the area of each lattice is the square net of b × b sizes to the ore deposit in photo
Stone is counted, in each lattice in the photo 1 and -1 number count respectively, and with above-mentioned total count value formula
Calculate, if total count value μ is α, illustrate ore fragmentation size minimum ore fragmentation acceptable for disintegrating machine in the photo；
3) one ore fragmentation of reselection is generally larger than the photo of b, using m × m square net, the area of each lattice
For the square net of c × c sizes is counted to the ore in photo, 1 and -1 in each lattice in the photo
Number count respectively, and with above-mentioned total count value formula calculate, if total count value μ is close to 0, illustrate ore fragmentation in the photo
Size maximum ore fragmentation acceptable for disintegrating machine；
By above-mentioned photo again with m × m, the area of each lattice is the square net of b × b sizes to the ore in photo
Counted, in each lattice in the photo 1 and -1 number count respectively, and with above-mentioned total count value formula meter
Calculate, if total count value μ is β, also illustrate ore fragmentation size maximum ore fragmentation acceptable for disintegrating machine in the photo.
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| CN1060353A (en) * | 1990-09-28 | 1992-04-15 | 北京科技大学 | Blasting of rock subregion and partition method |
| JP3331595B2 (en) * | 2000-06-05 | 2002-10-07 | 日東紡績株式会社 | Indoor environment design system, indoor environment evaluation system, indoor environment design method, and indoor environment evaluation method |
| CN101110067B (en) * | 2007-06-07 | 2010-06-30 | 李萍丰 | Intelligent analytical method and system for blasting operation |
| CN102937397B (en) * | 2012-11-27 | 2014-05-21 | 武汉大学 | Step blasting dynamic design method based on close-range photogrammetry technology |
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| CN107489420A (en) * | 2017-08-11 | 2017-12-19 | 辽宁科技大学 | Sublevel caving method without sill pillar Rock fragmentation is distributed remote real time monitoring system and method |
| CN107489420B (en) * | 2017-08-11 | 2019-02-26 | 辽宁科技大学 | Sublevel caving method without sill pillar Rock fragmentation is distributed remote real time monitoring system and method |
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