CN104747224B - Ventilation complexity analysis method based on mine ventilation equivalent area - Google Patents
Ventilation complexity analysis method based on mine ventilation equivalent area Download PDFInfo
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- 238000009423 ventilation Methods 0.000 title claims abstract description 142
- 238000004458 analytical method Methods 0.000 title claims abstract description 35
- 238000005265 energy consumption Methods 0.000 claims abstract description 27
- 230000000694 effects Effects 0.000 claims abstract description 9
- 238000011835 investigation Methods 0.000 claims description 3
- 230000009467 reduction Effects 0.000 claims description 3
- 238000009826 distribution Methods 0.000 abstract description 12
- 238000005457 optimization Methods 0.000 abstract description 11
- 238000000034 method Methods 0.000 abstract description 10
- 230000007774 longterm Effects 0.000 abstract description 2
- 238000004088 simulation Methods 0.000 abstract description 2
- 238000004364 calculation method Methods 0.000 abstract 1
- 238000011156 evaluation Methods 0.000 abstract 1
- 238000004445 quantitative analysis Methods 0.000 abstract 1
- 230000008859 change Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000007726 management method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
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- 238000013433 optimization analysis Methods 0.000 description 1
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- 238000012207 quantitative assay Methods 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/006—Ventilation at the working face of galleries or tunnels
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/02—Test models
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- Engineering & Computer Science (AREA)
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Abstract
The invention discloses a ventilation complexity analysis method based on a mine ventilation equivalent area. The method includes the following steps that basic ventilation system information, such as a ventilation system topological structure, basic roadway parameters, roadway wind resistance information and fan performance parameters, is collected; the basic ventilation system information required for network solution is obtained, initial network solution is conducted, and the air volume, the air pressure and the basic wind resistance data of the ventilation system are obtained; the ventilation cut set of all nodes in the ventilation system is solved; the roadway equivalent area is solved; the mine ventilation equivalent area is worked out according to the ventilation network nodes; a ventilation network graph and a ventilation energy consumption graph are drawn, analysis on the ventilation bottleneck, the resistance distribution, the ventilation equivalent energy consumption and the equivalent wind speed is conducted on the mine ventilation system. According to the ventilation complexity analysis method, in combination with ventilation network solution and other analog simulation calculation, accurate quantitative analysis evaluation can be conducted on the optimization reformation effect of the ventilation system, and the ventilation complexity analysis method serves medium and long-term technical analysis and system optimization of main ventilation effectively.
Description
Technical field
The present invention relates to mine ventilation system field, particularly a kind of ventilation difficulty or ease journey based on mine ventilation equivalent area
Degree analysis method.
Background technology
Mine ventilation is with the complication system under underground network, Ventilation Structures and mine ventilation power facility collective effect
Based on, produce for safe coal and Health Status For Workers Exposed provides basic guarantee.With the propulsion of getting working face, open up level
Extension, and the extension of limit of mining, so that mine ventilation during ventilating system is correspondingly in continuous dynamic evolution
Gradually difficult, ventilation energy consumption accordingly increases, and can not meet requirement and lead to the Hidden hazrads such as gas accumulation because of ventilation
Occur.Therefore ventilation professional attaches great importance to the analysis and research to ventilating system it is proposed that the concept of equivalent orifice and mine lead to
The criterion of wind complexity, improves ventilation instrument and ventilation optimization method, expands extensive ventilation energy consumption excellent
Change and ventilating system weak link Research on Identification.
The leading indicator that equivalent orifice judges as Degree of Difficulty of Mine Ventilation, directs actual production activity effectively；But
Be also it should be seen that, equivalent orifice can only carry out overall assessment to the complexity of mine ventilation, not comprehensively and concrete.On the other hand
Should, ventilation optimization mainly in order to obtain tunnel and related physical characteristics of divulging information, can obtain the tool measuring along journey roadway
Body parameter, but because tunnel annexation is complicated, discrete flowing resistance information can not directly reflect full mine or mine local
Ventilation complexity, determination data be used for ventilating system system optimization and transformation when also need to rely on substantial amounts of manual analyses.
Traditional equivalent orifice method can not adapt in the ventilation complexity analysis of modern mine completely, and recent grinds
Study carefully the suitability improving equivalent orifice concept for modern large-scale mine, but still generally be limited to overall to ventilating system
Evaluate it is impossible to reflecting the local conditions of ventilating system and identifying ventilation " bottleneck ", and mutual ventilation shadow between roadway can not be indicated
Ring；Ventilation optimization can disclose the ventilation feature of concrete roadway and be that ventilating system optimization analysis lays the foundation, and but fail
It is related to the analysis to mine or mine local ventilation complexity and judgement, therefore the two is evaluating the complexity of mine ventilation
When all there is obvious limitation.
Content of the invention
The invention aims to providing a kind of ventilation complexity analysis method based on mine ventilation equivalent area.
For reaching above-mentioned purpose, the present invention is to implement according to technical scheme below:
A kind of ventilation complexity analysis method based on mine ventilation equivalent area, comprises the following steps:
1) collect ventilating system Back ground Information, including ventilating system topological structure, tunnel basic parameter, tunnel windage information
With fan performance parameter；
2) obtain network and resolve required ventilating system Back ground Information, carry out initial network resolving, obtain ventilating system wind
Amount, blast, windage basic data；
3) solve the ventilation cut set of each node in ventilating system；；
4) solve tunnel equivalent area；
5) according to ventilation network node, calculate mine ventilation equivalent area；
6) blast-equivalent area figure, node-equivalent area figure, blast-equivalent energy consumption figure, node-equivalent energy consumption are drawn
Figure, is aerated bottleneck, the analysis of resistance distribution, equivalent energy consumption of divulging information and equivalent wind speed to mine ventilation system.
As present invention further optimization scheme, described acquisition tunnel windage information is to adjust according to measure of resistance and tunnel
Discover and seize and take.
Specifically, described step 3) specifically comprise the following steps that
A) mine ventilation network is expressed as form g={ v, e } of figure, wherein, v represents wind net node set；E represents lane
The set in road；
B) in ventilation network g, if branch ej∈ e, its start node is vstart, end node is vend, then as h (vend)
≤h(vi) ＜ h (vstart) when, ej∈scut(vi), claim scut(vi) it is node viCorresponding ventilation cut set, wherein, node viWind
Press as h (vi).
As present invention further optimization scheme, described step 4) basisSolve
Tunnel equivalent area, wherein aeffectiveFor tunnel equivalent cross-section, qairwayFor tunnel air quantity, hairwayFor tunnel blast.
As present invention further optimization scheme, described step 5) in a node asked with its cut set s that divulges informationcut(vi), appoint
One node viThe tunnel equivalent cross-section sum of each branch in ventilation cut set is mine ventilation corresponding with this node blast pressure etc.
Effect area area (vi),
Wherein, a (ej) it is branch ejUseful area, qi(ej) for the affiliated tunnel of cut set air quantity, hi(ej) it is affiliated tunnel at two
Pressure reduction between cut set node, is defined from cut set, and between two cut set equipressure cut-off rules, the blast in tunnel is equal；Based on ore deposit
Well ventilation plan, successively travels through all nodes from system beginning node to end-node according to wind direction, obtains a series of ore deposit
Well ventilation equivalent area, as mine ventilation equivalent face productive set mvea, mvea=(area (v1),area(v2),…,area
(vn)).
Ventilation bottleneck analysis: under normal circumstances, the ventilation equivalent area in the total air intake region of ventilating system and return air region
Less, and using wind region, due to the difference arrangement with wind point, can lead to divulge information the large change of equivalent area, reflects figure
In fluctuate up and down situation for equivalent area, by being analyzed may recognize that ventilation bottle-neck zone to the minimum of in figure equivalent area
Domain；
Resistance distributional analysiss: by equivalent area figure of divulging information, be clear that mine air intake-with the resistance of wind-return air
Power ratio, simultaneously according to the size cases of equivalent area, analyzes the resistance Changing Pattern in the distinguished and admirable flow process in mine；
Energy consumption analysis of ventilation: the rule of energy distribution both with node or blast as object, can have been analyzed it is also possible to two
Cut set equipressure cut-off rule is foundation, the equivalent energy consumption between calculating, formed resistance based on resistance development trend or Node distribution/
Node equivalent energy consumption figure, thus forming the extension of ventilation equivalent area figure, the energy distribution rule of analysis mine, Location of Mine
High energy consumption region；
Equivalent wind speed is analyzed: based on mine ventilation equivalent area, can obtain the equivalent wind speed of mine, such that it is able in peace
Under the laws and regulations such as full code, the reasonability distribution to full ore deposit wind speed is analyzed.
Above-mentioned analysis method basically forms the common figures such as mine ventilation equivalent area figure, ventilation network map, ventilation energy consumption figure
Shape integrated, thus for mine ventilation complexity, optimize analysis provide a set of comprehensive analysis method and theory.
Compared with prior art, the present invention uses for reference on the basis of equivalent orifice physical significance it is proposed that mine equivalent area
Definition and graphic plotting rule, and establish step and the method for concrete analysis, the method not only can reflect that mine is overall
Ventilation trend, can also represent the detailed resistance Distribution Pattern of mine and ventilation " bottleneck " region, be conducive to mine ventilation system
Fine-grained management, be that Degree of Difficulty of Mine Ventilation analysis proposes thinking and the method for novelty.
This method combines the analog simulations such as Ventilation Network Solution and calculates, and can make standard to ventilating system Optimizing Reconstruction effect
Quantitative assay, effectively serves in medium-term and long-term technical Analysis and the system optimization of mine ventilation.
Brief description
Fig. 1 is the mine ventilation equivalent area analysis process figure of the present invention；
Fig. 2 be the embodiment of the present invention 1 with node blast pressure as transverse axis, the ventilation equivalent area of each node is as the longitudinal axis
Mine ventilation equivalent area figure；
Fig. 3 is the ventilation equivalent area with the entitled transverse axis of network node, each node of the embodiment of the present invention 1 is vertical
The mine ventilation equivalent area figure of axle；
Fig. 4 is the Ventilation Network Solution figure of the embodiment of the present invention 2；
Fig. 5 is the ventilation network map of the embodiment of the present invention 2；
Fig. 6 is the ventilation energy consumption figure of the embodiment of the present invention 2；
Fig. 7 is the blast-equivalent area figure of the embodiment of the present invention 2；
Fig. 8 is the node-equivalent face figure of the embodiment of the present invention 2；
Fig. 9 is the blast-equivalent energy consumption figure of the embodiment of the present invention 2；
Figure 10 is the node-equivalent energy consumption figure of the embodiment of the present invention 2.
Specific embodiment
With reference to specific embodiment, the invention will be further described, illustrative examples and explanation that here is invented
It is used for explaining the present invention, but not as a limitation of the invention.
Embodiment 1
A kind of ventilation complexity analysis method based on mine ventilation equivalent area as shown in Figure 1, walks including following
Rapid:
1) collect ventilating system Back ground Information, including ventilating system topological structure, tunnel basic parameter, foundation measure of resistance
The tunnel windage information obtaining with tunnel investigation and fan performance parameter；
2) obtain network and resolve required ventilating system Back ground Information, carry out initial network resolving, obtain ventilating system wind
Amount, blast, windage basic data；
3) mine ventilation network is expressed as form g={ v, e } of figure, wherein, v represents wind net node set；E represents lane
The set in road；
4) in ventilation network g, if branch ej∈ e, its start node is vstart, end node is vend, then as h (vend)
≤h(vi) ＜ h (vstart) when, ej∈scut(vi), claim scut(vi) it is node viCorresponding ventilation cut set, wherein, node viWind
Press as h (vi)；
5) basisSolve tunnel equivalent area, wherein aeffectiveEquivalent disconnected for tunnel
Face, qairwayFor tunnel air quantity, hairwayFor tunnel blast；
6) according to ventilation network node, a node is asked with its cut set s that divulges informationcut(vi), any node viIn ventilation cut set
The tunnel equivalent cross-section sum of each branch be mine ventilation equivalent area area (v corresponding with this node blast pressurei), Wherein, a (ej) be
Branch ejUseful area, qi(ej) for the affiliated tunnel of cut set air quantity, hi(ej) it is affiliated tunnel between two cut set nodes
Pressure reduction, is defined from cut set, and between two cut set equipressure cut-off rules, the blast in tunnel is equal；Based on mine ventilation system
Figure, successively travels through all nodes from system beginning node to end-node according to wind direction, obtains a series of mine ventilation equivalent
Area, as mine ventilation equivalent face productive set mvea, mvea=(area (v1),area(v2),…,area(vn))；
7) in order to clearly express the physical significance expressed by mine ventilation equivalent area data, intuitively, clearly to express
The ventilation complexity of each section of ventilating system, the drawing convention of ventilation equivalent face figure both can be based on wind pressure value, may be based on divulging information
Each node in network, The present invention gives the graph-based analysis method of two kinds of forms.Specifically: the figure longitudinal axis is
The ventilation equivalent area of each node；Transverse axis has two kinds of forms of expression, a kind of with node blast pressure as transverse axis as shown in Fig. 2
It is worth greatly for mine drag overall, another kind is as shown in figure 3, the tunnel between due to two nodes has with the entitled transverse axis of network node
Effect basal area is relatively fixed, and the characteristic curve of therefore in figure is shown as trapezoidal.Wherein node blast pressure-equivalent area figure can be clearly
The Changing Patterns such as performance mine air entering and returning resistance ratios, the distribution of equivalent area corresponding resistance；Nodename-equivalent area figure then may be used
To show different node corresponding ventilation equivalent areas, disclose the ventilation equivalent area fluctuation situation corresponding to different nodes, from
And the high energy consumption region of effective Location of Mine, blast-equivalent energy consumption, section can also be expanded based on equivalent area definition and upper figure
Concept and the figures such as point-equivalent energy consumption, blast-equivalent wind speed and node equivalent wind speed, are aerated bottle to mine ventilation system
Neck, the analysis of resistance distribution, equivalent energy consumption of divulging information and equivalent wind speed.
Embodiment 2
Below by way of the instance analysis to red building woods ore deposit, checking is divided based on the ventilation complexity of mine ventilation equivalent area
The effectiveness of analysis method, this ore deposit is one of four pairs of large-scale mines that country determines in Shen Fu South overall planning, field with "nine squares" area 159
Square kilometre, 20.16 hundred million tons of oil in place, 87 years mine service-lives.The thick and middle thickness in coal seam, preservation is stable, and inclination angle is little, pushes up bottom
Plate is stably complete, and mining conditions are superior, and ventilation divides row extraction mode, longwall full-mechanized mining technique using single horizontal centre.
By the tunnel investigation to this ore deposit, obtain tunnel basic feature data, blower fan appraising datum, ventilation optimization
With data such as ventilation ten days reports, it is then based on mine present situation to ventilating system deployment analysis, has carried out Ventilation Network Solution successively and seen
Fig. 4, ventilation network map is shown in that Fig. 5, ventilation energy consumption figure are shown in that Fig. 6, ventilation cut-set analysis are shown in Table 1.
Table 1 ventilation major avenues of approach (s15201 work surface) cut set and mine equivalent area (part)
As shown in Fig. 7,8,9,10 be respectively blast-equivalent area figure, node-equivalent face figure, blast-equivalent energy consumption figure and
Node-equivalent energy consumption figure, in the left hand view based on this ore deposit mine ventilation equivalent area figure as can be seen that this ore deposit air intake region leads to
Wind resistance 340pa, with wind region 469pa, return air region 360pa, resistance distribution is relatively reasonable；Always enter, return air two ends ventilation etc.
Effect area is relatively low, illustrates larger in total air intake region and total return air region wind speed, wherein only return aircourse 50 and 51, and air intake
The total energy consumption in tunnel 1 and 29 accounts for more than the 50% of full mine, and the higher area distribution of energy consumption is in negative pressure 550pa-1040pa
Region, in addition eight lane energy consumptions are also higher, should draw attention；Mine wind region be disposed with 1 Ileal neobladder, 1 standby adopt
Face and 6 development end, the ventilation equivalent area with wind section is larger, but more notable with ventilation equivalent area change in wind region,
Illustrate for the angle of ventilation layout, mine is to be improved with ventilation scheduling with the production layout in wind region.In right part of flg
Air intake zonal ventilation equivalent area is gradually increased, and illustrates to produce big lane with close to section, roadway layout gradually increases；This figure is same
The equivalent area fluctuation that sample shows with wind region is larger, illustrates that work surface arrangement is left some room for improvement with air distribution design；Ventilation
" bottleneck " occurs in the regions such as node 185,186,80,34,47,48 and 50, should strengthen separate ventilation management, to improve work surface
Anti-disaster ability.
Technical scheme is not limited to the restriction of above-mentioned specific embodiment, and every technology according to the present invention scheme is done
The technology deformation going out, each falls within protection scope of the present invention.
Claims (1)
1. a kind of ventilation complexity analysis method based on mine ventilation equivalent area is it is characterised in that comprise the following steps:
1) collect ventilating system Back ground Information, including ventilating system topological structure, tunnel basic parameter, tunnel windage information and wind
Machine performance parameter；
2) obtain network and resolve required ventilating system Back ground Information, carry out initial network resolving, obtain ventilating system air quantity, wind
Pressure, windage basic data；
3) solve the ventilation cut set of each node in ventilating system；
4) solve tunnel equivalent area；
5) according to ventilation network node, calculate mine ventilation equivalent area；
6) draw ventilation network map and ventilation energy consumption figure, mine ventilation system is aerated with bottleneck, resistance is distributed, ventilation is equivalent
Energy consumption and the analysis of equivalent wind speed, described acquisition tunnel windage information obtains according to measure of resistance and tunnel investigation, described
Step 3) specifically comprise the following steps that
A) mine ventilation network is expressed as form g={ v, e } of figure, wherein, v represents wind net node set；E represents tunnel
Set；
B) in ventilation network map g, if branch ej∈ e, its start node is vstart, end node is vend, then as h (vend)≤h
(vi)<h(vstart) when, ej∈scut(vi), claim scut(vi) it is node viCorresponding ventilation cut set, wherein, node viBlast be h
(vi), described step 4) basisSolve tunnel equivalent area, wherein aeffectiveFor tunnel etc.
Effect section, qairwayFor tunnel air quantity, hairwayFor tunnel blast, described step 5) in a node asked with its cut set s that divulges informationcut(vi),
Any node viThe tunnel equivalent cross-section sum of each branch in ventilation cut set is mine ventilation corresponding with this node blast pressure etc.
Effect area area (vi),Its
In, a (ej) it is branch ejUseful area, qi(ej) for the affiliated tunnel of cut set air quantity, hi(ej) cut at two for affiliated tunnel
Pressure reduction between collection node, is defined from cut set, and between two cut set equipressure cut-off rules, the blast in tunnel is equal；Based on mine
Ventilation plan, successively travels through all nodes from system beginning node to end-node according to wind direction, obtains a series of mine
Ventilation equivalent area, as mine ventilation equivalent face productive set mvea, mvea=(area (v1),area(v2),…,area(vn)).
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| CN105756697B (en) * | 2016-05-05 | 2018-01-02 | 中国矿业大学 | A kind of safe adjustment control method of mine ventilation system Dynamic stage |
| CN105937401B (en) * | 2016-06-22 | 2017-12-19 | 西安科技大学 | The method for protecting support in Liu Sheshuan lanes is once tunneled in a kind of U-shaped ventilation |
| CN106948853B (en) * | 2017-05-11 | 2018-03-20 | 山东蓝光软件有限公司 | A kind of global accurate sensors optimum placement method for surveying wind of mine |
| CN109869178B (en) * | 2019-01-07 | 2020-12-04 | 太原理工大学 | Method for rapidly identifying wind net corner wind connection path |
| CN114611428B (en) * | 2022-03-14 | 2022-09-30 | 山东蓝光软件有限公司 | Simulation analysis method for complex mine ventilation network |
| CN116663210B (en) * | 2023-05-15 | 2024-02-02 | 北京龙软科技股份有限公司 | Conversion method and system for three-dimensional roadway space relation to ventilation network calculation model |
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| CN101655012A (en) * | 2009-07-03 | 2010-02-24 | 中交第二公路勘察设计研究院有限公司 | Method for ventilating double-hole tunnel network |
| CN102465708A (en) * | 2010-11-12 | 2012-05-23 | 平安煤矿瓦斯治理国家工程研究中心有限责任公司 | Mine ventilation information processing system and method |
| WO2012097437A1 (en) * | 2011-01-17 | 2012-07-26 | Boudreau-Espley-Pitre Corporation | System and method for energy consumption optimization |
| CN102323998B (en) * | 2011-09-29 | 2014-02-05 | 辽宁工程技术大学 | Method for checking wind-friction resistance value of mine roadway |
| CN102650214B (en) * | 2012-05-31 | 2014-07-16 | 中煤科工集团重庆研究院 | Early warning method and system for on-line monitoring and analysis of mine ventilation system |
| CN103603691B (en) * | 2013-11-28 | 2016-08-17 | 煤炭科学技术研究院有限公司 | A kind of mine ventilation dynamic resolving and analysis early warning method and system |
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