CN104747224A - 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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- CN104747224A CN104747224A CN201510044163.4A CN201510044163A CN104747224A CN 104747224 A CN104747224 A CN 104747224A CN 201510044163 A CN201510044163 A CN 201510044163A CN 104747224 A CN104747224 A CN 104747224A
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- ventilation
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- E—FIXED CONSTRUCTIONS
- E21—EARTH 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 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 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
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 complexity analytical method based on mine ventilation equivalent area.
Background technology
Based on the complication system of mine ventilation under underground network, Ventilation Structures and the acting in conjunction of mine ventilation power facility, for safe coal production and Health Status For Workers Exposed provide basic guarantee.Along with the propelling of getting working face, the extension of developing level, and the expansion of limit of mining, ventilation system is correspondingly in continuous dynamic evolution process, make mine ventilation gradually difficult, the corresponding increase of ventilation energy consumption, and may can not meet the demands owing to ventilating and cause the Hidden hazrads such as gas accumulation to occur.Therefore ventilation professional attaches great importance to the analysis and research to ventilation system, propose the concept of equivalent orifice and the criterion of Degree of Difficulty of Mine Ventilation, improve ventilation instrument and ventilation optimization method, expand ventilation energy optimization and ventilation system weak link Research on Identification widely.
The leading indicator that equivalent orifice judges as Degree of Difficulty of Mine Ventilation, directs actual production activity effectively; But also should see, equivalent orifice can only carry out overall assessment to the complexity of mine ventilation, not comprehensively with concrete.Corresponding, ventilation optimization is mainly in order to obtain tunnel and relevant physical characteristic of ventilating, the design parameter measured along journey roadway can be obtained, but because tunnel annexation is complicated, discrete flowing resistance information directly can not reflect the ventilation complexity of full mine or mine local, also needs to rely on a large amount of manual analyses when determination data is used for ventilation system system optimization and transformation.
Traditional equivalent orifice method can not adapt to completely in the ventilation complexity analysis of modern mine, the recent Improvement applicability of equivalent orifice concept for modern large-scale mine, but the overall assessment be still confined in general ventilation system, the local conditions of ventilation system cannot be reflected and identify ventilation " bottleneck ", and Ventilation Effect mutual between roadway can not be indicated; Ventilation optimization can disclose the ventilation feature of concrete roadway and be that ventilation system Optimization analyses lays the foundation, but fail to relate to the analysis to mine or mine local ventilation complexity and judgement, therefore the two all also exists obvious limitation when evaluating complexity of mine ventilation.
Summary of the invention
The object of the invention is to provide a kind of ventilation complexity analytical method based on mine ventilation equivalent area.
For achieving the above object, the present invention implements according to following technical scheme:
Based on a ventilation complexity analytical method for mine ventilation equivalent area, comprise the following steps:
1) collect ventilation system Back ground Information, comprise ventilation system topological structure, tunnel basic parameter, tunnel windage information and fan performance parameter;
2) obtain network and resolve required ventilation system Back ground Information, carry out initial network and resolve, obtain ventilation system air quantity, blast, windage basic data;
3) the ventilation cut set of each node in ventilation system is solved; ;
4) tunnel equivalent area is solved;
5) according to ventilation network node, mine ventilation equivalent area is calculated;
6) draw blast-equivalent area figure, node-equivalent area figure, blast-equivalent energy consumption figure, node-equivalent energy consumption figure, mine ventilation system is carried out to the analysis of ventilation bottleneck, resistance distribution, ventilate equivalent energy consumption and equivalent wind speed.
As present invention further optimization scheme, described acquisition tunnel windage information obtains according to measure of resistance and tunnel investigation.
Concrete, described step 3) concrete steps as follows:
A) mine ventilation network is expressed as the form G={V of figure, E}, wherein, V represents wind net node set; E represents the set in tunnel;
B) in ventilation network G, if branch e
j∈ E, its start node is v
start, end node is v
end, then as h (v
end)≤h (v
i) < h (v
start) time, e
j∈ S
cut(v
i), claim S
cut(v
i) be node v
icorresponding ventilation cut set, wherein, node v
iblast be h (v
i).
As present invention further optimization scheme, described step 4) basis
solve tunnel equivalent area, wherein A
effectivefor tunnel equivalent cross-section, Q
airwayfor tunnel air quantity, h
airwayfor tunnel blast.
As present invention further optimization scheme, described step 5) in its ventilation cut set S is asked to a node
cut(v
i), any node v
ithe tunnel equivalent cross-section sum of each branch in ventilation cut set is the mine ventilation equivalent area Area (v corresponding with this node blast pressure
i),
Wherein, A (e
j) be branch e
juseful area, Q
i(e
j) air quantity in tunnel belonging to cut set, h
i(e
j) for affiliated tunnel is at two internodal pressure reduction of cut set, defined from cut set, between two cut set isobaric cut-off rules, the blast in tunnel is equal; Based on mine ventilation system figure, successively travel through all node from system beginning node to end-node according to wind direction, obtain a series of mine ventilation equivalent area, be mine ventilation equivalent face productive set MVEA, MVEA=(Area (v
1), Area (v
2) ..., Area (v
n)).
Ventilation bottleneck analysis: under normal circumstances, the ventilation equivalent area in the air intake region that ventilation system is total and return air region is less, and using wind region, owing to arranging by the difference of wind point, the larger change of ventilation equivalent area can be caused, be reflected to for equivalent area fluctuates situation up and down in figure, go out to ventilate neck region by carrying out analysis identifiable design to the minimum of equivalent area in figure;
Resistance distributional analysis: by ventilation equivalent area figure, can see the resistance ratios of mine air intake-use wind-return air clearly, simultaneously according to the size cases of equivalent area, analyzes distinguished and admirable change in resistance rule in mine flow process;
Energy consumption analysis of ventilation: both can with node or blast for object, analyze the rule of energy distribution, also can with the isobaric cut-off rule of two cut sets for foundation, equivalent energy consumption between calculating, form the resistance/node equivalent energy consumption figure based on resistance development trend or Node distribution, thus form the expansion of ventilation equivalent area figure, analyze the energy distribution rule of mine, the high energy consumption region of Location of Mine;
Equivalent wind speed is analyzed: based on mine ventilation equivalent area, can obtain the equivalent wind speed of mine, thus under the laws and regulations such as safety code, can analyze the reasonability of full ore deposit wind speed.
Above-mentioned analytical method basically forms the integrated of the Common graphical such as mine ventilation equivalent area figure, ventilation network map, ventilation energy consumption figure, thus is the ventilation complexity of mine, and Optimization analyses provides a set of comprehensive analytical method and theory.
Compared with prior art, the present invention uses for reference on the basis of equivalent orifice physical significance, propose definition and the graphic plotting rule of mine equivalent area, and establish the step and method of concrete analysis, the method not only can reflect the overall ventilation trend of mine, the detailed resistance Distribution Pattern of mine and ventilation " bottleneck " region can also be represented, be conducive to the fine-grained management of mine ventilation system, for Degree of Difficulty of Mine Ventilation analysis proposes the thinking and countermeasure of novelty.
This method calculates in conjunction with analog simulations such as Ventilation Network Solutions, can make certainly quantitative analysis evaluation, effectively serve medium-term and long-term technical Analysis and the system optimization of mine ventilation to ventilation system Optimizing Reconstruction effect.
Accompanying drawing explanation
Fig. 1 is mine ventilation equivalent area analysis process figure of the present invention;
Fig. 2 be the embodiment of the present invention 1 take node blast pressure as transverse axis, the ventilation equivalent area of each node mine ventilation equivalent area figure that is the longitudinal axis;
Fig. 3 be the embodiment of the present invention 1 be called with network node name the mine ventilation equivalent area figure that the ventilation equivalent area of transverse axis, each node is the longitudinal axis;
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.
Detailed description of the invention
Below in conjunction with specific embodiment, the invention will be further described, is used for explaining the present invention in this illustrative examples of inventing and explanation, but not as a limitation of the invention.
Embodiment 1
A kind of ventilation complexity analytical method based on mine ventilation equivalent area as shown in Figure 1, comprises the following steps:
1) collect ventilation system Back ground Information, comprise ventilation system topological structure, tunnel basic parameter, investigate the tunnel windage information and fan performance parameter that obtain according to measure of resistance and tunnel;
2) obtain network and resolve required ventilation system Back ground Information, carry out initial network and resolve, obtain ventilation system air quantity, blast, windage basic data;
3) mine ventilation network is expressed as the form G={V of figure, E}, wherein, V represents wind net node set; E represents the set in tunnel;
4) in ventilation network G, if branch e
j∈ E, its start node is v
start, end node is v
end, then as h (v
end)≤h (v
i) < h (v
start) time, e
j∈ S
cut(v
i), claim S
cut(v
i) be node v
icorresponding ventilation cut set, wherein, node v
iblast be h (v
i);
5) basis
solve tunnel equivalent area, wherein A
effectivefor tunnel equivalent cross-section, Q
airwayfor tunnel air quantity, h
airwayfor tunnel blast;
6) according to ventilation network node, its ventilation cut set S is asked to a node
cut(v
i), any node v
ithe tunnel equivalent cross-section sum of each branch in ventilation cut set is the mine ventilation equivalent area Area (v corresponding with this node blast pressure
i),
Wherein, A (e
j) be branch e
juseful area, Q
i(e
j) air quantity in tunnel belonging to cut set, h
i(e
j) for affiliated tunnel is at two internodal pressure reduction of cut set, defined from cut set, between two cut set isobaric cut-off rules, the blast in tunnel is equal; Based on mine ventilation system figure, successively travel through all node from system beginning node to end-node according to wind direction, obtain a series of mine ventilation equivalent area, be mine ventilation equivalent face productive set MVEA, MVEA=(Area (v
1), Area (v
2) ..., Area (v
n));
7) in order to the physical significance expressed by clear expression mine ventilation equivalent area data, intuitively, clearly to express the ventilation complexity of each section of ventilation system, the drawing convention of ventilation equivalent face figure both can based on wind pressure value, also based on each node in ventilation network map, the graph-based analytical method of two kinds of forms can be The present invention gives.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 be transverse axis as shown in Figure 2, maximum value is mine drag overall, and another kind is called that transverse axis is as shown in Figure 3 with network node name, because two internodal tunnel effective cross sectional areas are relatively fixing, the characteristic curve therefore in figure is shown as trapezoidal.Wherein node blast pressure-equivalent area figure clearly can show the Changing Patterns such as resistance distribution corresponding to mine air entering and returning resistance ratios, equivalent area; Nodename-equivalent area figure then can show ventilation equivalent area corresponding to different node, disclose the ventilation equivalent area fluctuation situation corresponding to different node, thus the high energy consumption region of effective location mine, concept and the figures such as blast-equivalent energy consumption, node-equivalent energy consumption, blast-equivalent wind speed and node equivalent wind speed can also be expanded based on equivalent area definition and upper figure, mine ventilation system be carried out to the analysis of ventilation bottleneck, resistance distribution, ventilate equivalent energy consumption and equivalent wind speed.
Embodiment 2
Below by way of the instance analysis to red building woods ore deposit, verify the validity based on the ventilation complexity analytical method of mine ventilation equivalent area, this ore deposit is one of four pairs of large-scale mines determining at Shen Fu South overall plan of country, field with "nine squares" area 159 square kilometres, oil in place 20.16 hundred million tons, 87 years mine service-lives.Coal seam thick and in thick, compose and deposit stable, inclination angle is little, and roof and floor is stablized complete, and mining conditions is superior, ventilates and adopts single horizontal centre apportion to extract mode out, longwall full-mechanized mining technique.
By investigating the tunnel in this ore deposit, obtain the data such as tunnel essential characteristic data, blower fan appraising datum, ventilation optimization and ventilation ten days report, then based on mine present situation to ventilation system deployment analysis, carry out Ventilation Network Solution successively and seen Fig. 4, ventilation network map has been shown in Fig. 5, ventilation energy consumption figure is shown in Fig. 6, ventilation cut-set analysis has been in table 1.
Table 1 ventilates major avenues of approach (S15201 work plane) cut set and mine equivalent area (part)
Blast-equivalent area figure, node-equivalent face figure, blast-equivalent energy consumption figure and node-equivalent energy consumption figure is respectively as shown in Fig. 7,8,9,10, can find out in left hand view based on this ore deposit mine ventilation equivalent area figure, this ore deposit air intake zonal ventilation resistance 340pa, with wind region 469pa, return air region 360pa, resistance distribution is relatively reasonable; Always enter, ventilation equivalent area in return air two ends is lower, illustrate total air intake region and total return air region wind speed larger, wherein only return aircourse 50 and 51, and the total energy consumption of intake 1 and 29 accounts for more than 50% of full mine, and the higher area distribution of energy consumption is in the region of negative pressure 550pa-1040pa, other eight lane energy consumptions are also higher, should draw attention; 1 Ileal neobladder, 1 preparing exploit layer and 6 development end are furnished with in mine wind region, larger by the ventilation equivalent area of wind section, but it is comparatively remarkable with ventilation equivalent area change in wind region, angle from ventilation layout is described, the production layout in mine wind region is dispatched to be improved with ventilation.Air intake zonal ventilation equivalent area in right part of flg increases gradually, illustrates to produce large lane along with close to section, and roadway layout increases gradually; This figure shows with the equivalent area fluctuation in wind region comparatively large equally, illustrates that work plane is arranged and air distribution is designed with room for improvement; Ventilation " bottleneck " appears at the regions such as node 185,186,80,34,47,48 and 50, should strengthen separate ventilation management, to improve work plane anti-disaster ability.
Technical scheme of the present invention is not limited to the restriction of above-mentioned specific embodiment, the technology distortion that every technical scheme according to the present invention is made, and all falls within protection scope of the present invention.
Claims (5)
1., based on a ventilation complexity analytical method for mine ventilation equivalent area, it is characterized in that, comprise the following steps:
1) collect ventilation system Back ground Information, comprise ventilation system topological structure, tunnel basic parameter, tunnel windage information and fan performance parameter;
2) obtain network and resolve required ventilation system Back ground Information, carry out initial network and resolve, obtain ventilation system air quantity, blast, windage basic data;
3) the ventilation cut set of each node in ventilation system is solved;
4) tunnel equivalent area is solved;
5) according to ventilation network node, mine ventilation equivalent area is calculated;
6) draw ventilation network map and ventilation energy consumption figure, mine ventilation system is carried out to the analysis of ventilation bottleneck, resistance distribution, ventilate equivalent energy consumption and equivalent wind speed.
2. the ventilation complexity analytical method based on mine ventilation equivalent area according to claim 1, is characterized in that: described acquisition tunnel windage information obtains according to measure of resistance and tunnel investigation.
3. the ventilation complexity analytical method based on mine ventilation equivalent area according to claim 1, is characterized in that: described step 3) concrete steps as follows:
A) mine ventilation network is expressed as the form G={V of figure, E}, wherein, V represents wind net node set; E represents the set in tunnel;
B) in ventilation network map G, if branch e
j∈ E, its start node is v
start, end node is v
end, then as h (v
end)≤h (v
i) < h (v
start) time, e
j∈ S
cut(v
i), claim S
cut(v
i) be node v
icorresponding ventilation cut set, wherein, node v
iblast be h (v
i).
4. the ventilation complexity analytical method based on mine ventilation equivalent area according to claim 1, is characterized in that: described step 4) basis
solve tunnel equivalent area, wherein A
effectivefor tunnel equivalent cross-section, Q
airwayfor tunnel air quantity, h
airwayfor tunnel blast.
5. the ventilation complexity analytical method based on mine ventilation equivalent area according to claim 1, is characterized in that: described step 5) in its ventilation cut set S is asked to a node
cut(v
i), any node v
ithe tunnel equivalent cross-section sum of each branch in ventilation cut set is the mine ventilation equivalent area Area (v corresponding with this node blast pressure
i),
Wherein, A (e
j) be branch e
juseful area, Q
i(e
j) air quantity in tunnel belonging to cut set, h
i(e
j) for affiliated tunnel is at two internodal pressure reduction of cut set, defined from cut set, between two cut set isobaric cut-off rules, the blast in tunnel is equal; Based on mine ventilation system figure, successively travel through all node from system beginning node to end-node according to wind direction, obtain a series of mine ventilation equivalent area, be mine ventilation equivalent face productive set MVEA, MVEA=(Area (v
1), Area (v
2) ..., Area (v
n)).
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105756697A (en) * | 2016-05-05 | 2016-07-13 | 中国矿业大学 | Dynamical staged safe regulating and controlling method for mine ventilation system |
| CN105937401A (en) * | 2016-06-22 | 2016-09-14 | 西安科技大学 | Support method for U-type ventilation primary tunneling setting-up double roadways |
| CN106948853A (en) * | 2017-05-11 | 2017-07-14 | 山东蓝光软件有限公司 | A kind of global accurate sensors optimum placement method for surveying wind of mine |
| CN109869178A (en) * | 2019-01-07 | 2019-06-11 | 太原理工大学 | A kind of method of quick identification wind net polygonal net connection |
| CN114611428A (en) * | 2022-03-14 | 2022-06-10 | 山东蓝光软件有限公司 | Simulation analysis method for complex mine ventilation network |
| CN116663210A (en) * | 2023-05-15 | 2023-08-29 | 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 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102323998A (en) * | 2011-09-29 | 2012-01-18 | 辽宁工程技术大学 | Method for checking wind-friction resistance value of mine roadway |
| 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 |
| CN102650214A (en) * | 2012-05-31 | 2012-08-29 | 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 |
| CN103603691A (en) * | 2013-11-28 | 2014-02-26 | 煤炭科学研究总院 | Mine ventilation dynamic resolving and analysis early warning method and system |
-
2015
- 2015-01-28 CN CN201510044163.4A patent/CN104747224B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102323998A (en) * | 2011-09-29 | 2012-01-18 | 辽宁工程技术大学 | Method for checking wind-friction resistance value of mine roadway |
| CN102650214A (en) * | 2012-05-31 | 2012-08-29 | 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 |
| CN103603691A (en) * | 2013-11-28 | 2014-02-26 | 煤炭科学研究总院 | Mine ventilation dynamic resolving and analysis early warning method and system |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105756697A (en) * | 2016-05-05 | 2016-07-13 | 中国矿业大学 | Dynamical staged safe regulating and controlling method for mine ventilation system |
| CN105937401A (en) * | 2016-06-22 | 2016-09-14 | 西安科技大学 | Support method for U-type ventilation primary tunneling setting-up double roadways |
| CN106948853A (en) * | 2017-05-11 | 2017-07-14 | 山东蓝光软件有限公司 | A kind of global accurate sensors optimum placement method for surveying wind of mine |
| CN109869178A (en) * | 2019-01-07 | 2019-06-11 | 太原理工大学 | A kind of method of quick identification wind net polygonal net connection |
| CN114611428A (en) * | 2022-03-14 | 2022-06-10 | 山东蓝光软件有限公司 | Simulation analysis method for complex mine ventilation network |
| 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 |
| CN116663210A (en) * | 2023-05-15 | 2023-08-29 | 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 |
| 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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