CN104775841B - Ventilation network safety partition method for mine wind points - Google Patents

Abstract

The invention discloses a ventilation network safety partition dividing method facing mine wind points, which defines six different safety partitions including an air inlet area, an air return area, an air using area upstream, an air using area downstream and a bypass area, adopts a breadth-first search algorithm to perform traversal analysis on a coal mine ventilation network by taking the wind points (a stope face and a tunneling face) as a center, realizes the partition of the ventilation network by combining with a safety partition dividing algorithm, and further establishes a disaster traceability method based on the safety partitions for the analysis and management of coal mine safety production.

Description

Towards the mine ventilation network security partitioning division methods of wind point

Technical field

The present invention relates to the division methods of coalmine ventilation network structure.

Background technology

Coalmine ventilation network is under the constraint of the condition such as chief ventilators and Ventilation Structures, it is achieved to roadway network system Air feed, its Core Feature is the demand ensureing each wind point to fresh air, by the toxic and harmful of Workplace with Dust Control is within the limit of regulation, and sets up the production environment meeting practitioner's health requirements.To this end, " colliery is pacified Full code " require to provide independent separate ventilation for down-hole each wind point, and for carrying with wind point of independent ventilation cannot be realized Strict ventilation quality regulation and safety guarantee requirement are gone out.

Separate ventilation has multiple advantage, and it is reliable, takes precautions against natural calamities, to combat a natural disaster performance strong；Separate ventilation simple in construction, distinguished and admirable Can easily be accommodated, flowing resistance is little；It is avoided that the problem that part tunnel wind speed is too high, is the basic mode of coalmine ventilation, and extremely Meet ventilating system complexity, wind path length, have that spontaneous fire is dangerous, the actual ventilation requirement of the large-scale mine of high methane.

The security against fire guarantee of modern large complicated building is based on the fire compartment delimited, the most similar, coal The basic region that security partitioning in the ventilating system of ore deposit belongs to for ventilation, gas, fire extinguishing analysis and management configuration divides, point Not by manifesting in security risk, the aspect such as daily management feature, emergency processing strategy have the roadway set of higher similarity to constitute. Each roadway set constitutes a security partitioning, and the roadway in subregion is connected with each other (containing being associated by air node), each Roadway is all associated with unique security partitioning, and thus ventilating system is divided into non-overlapping, exhaustively security partitioning body System.Get on very well in principle, ventilating system include mine air intake, mine return air, mine wind, with Feng Qu upstream, with Feng Qu downstream, with And bypass the security partitioning that this six class is different, wherein with wind district comprise multiple with getting working face and leading room as core point District, it is, in general, that the security partitioning in mine wind district is consistent with the ventilation subregion of application wind point mutually；With Feng Qu upstream and use wind Downstream, district subregion may be then respectively one, it is also possible to for multiple, but at most not over the security partitioning number in wind district, for Relatively simple ventilating system or the stronger mine of zoned venting characteristics, the security partitioning of each wind point may be upper and lower by it The roadway of trip is directly included in interior and does not subdivides；Bypass district includes the bypass wind that all and each wind point is paralleled in principle Road, these bypass air channels may there is no directly contact each other, but as " bypass " in useful wind air channel and have it common Ventilation feature, is usually placed in same security partitioning and does not subdivides.

The Regional Characteristics of mire ventilation safety has obtained everybody generally approval, but owing to coalmine ventilation network structure is multiple Miscellaneous, and each local have again while demonstrating area differentiation inherence association, thus divide more difficulty.

The management relative poor of separate ventilation at present, the ventilation subregion of each wind point is still not clear, and along with colliery digging The propelling of work, wind web frame is continually changing and the most numerous and the most jumbled so that mine ventilation management becomes the work of complexity and difficulty. Particular problem has: 1, the complexity development of ventilating system, adds and directly manages mining ventilation and safety with personal experience The difficulty of work, often leads to ventilation safety manager's lack of clear-cut job responsibility, and task is heavy, it is difficult to analyse in depth and ore deposit faced by understanding Well ventilating system, directly influences precognition and takes precautions against the ability of ventilation safety risk；2, mine ventilation system owing to new lane is through, The reasons such as old lane is discarded, the change of roadway purposes, Ventilation Structures increase and decrease, its topological structure and roadway ventilation attribute be continually changing, Causing the presentation attributes of security risk in system to change therewith, ventilation safety manager and technical staff are difficult in depth recognize in time Know the objective environment constantly updated, add and manage the delayed or security risk caused of slipping up；3, the daily management of ventilation safety Require to hold the overall management and control to security situation with emergency disposal, manifest causal succinct understanding, corresponding the other side to abnormal The good and bad judgement of case, thus for the demand that the combination that complicated ventilating system is divided into simple module has reality.

Ventilation network is divided into security partitioning, is conducive to the assurance of overall importance to ventilation network, and to air quantity, gas Etc. grasp and the analysis of information, the problem finding in time to exist；When ventilating system occurs abnormal, it is simple to press subregion order quickly The source of orientation problem also determines counte-rplan；Management philosophy based on security partitioning, beneficially to colliery enforcement, everyone has responsibility Fine-grained management and security control, ensure the safe operation of ventilating system with the system of more science.

Summary of the invention

It is an object of the invention to provide a kind of ventilation network security partitioning division methods towards mine wind point, based on peace The management philosophy of full subregion, is conducive to implementing colliery fine-grained management and the security control that everyone has responsibility, with more science System ensures the safe operation of ventilating system.

The technical scheme is that a kind of ventilation network security partitioning division methods towards mine wind point, it is special Levy and be to comprise the steps of

(1) mine attribute connected-graph model is set up, by topological structure and the attribute information expressed intact in addition of mine；

(2) utilizing breadth-first search to analyze the topological structure of mine attribute connection figure, the suitable of foundation wind point is searched Tunnel collection and inverse search tunnel collection；

(3) set up security partitioning partitioning algorithm, with wind point along search tunnel collection and inverse search tunnel collection on the basis of, will ventilate Network is divided into six class security partitionings；

Wherein mine attribute connected-graph model in step (1), this model G={V, E, A} represent, wherein V represents wind net Node set；E represents the set in tunnel；A represents that community set, attribute information include following ATTRIBUTE INDEX and data type:

A(e_i)={ A_Type(e_i),A_D(e_i)A_P(e_i),A_Q(e_i)}

A_Type(e_i) it is tunnel type, described tunnel leads to type and represents the functional attributes in tunnel, when tunnel type is coal-getter Make when face, driving face, to show that this tunnel is quantitative attributes for using wind point, tunnel type；

A_D(e_i) it is tunnel wind direction, the direction that described tunnel wind direction is distinguished and admirable in representing tunnel, tunnel wind direction Boolean table Showing, described tunnel wind direction is qualitative data；

A_P(e_i) it is tunnel blast, the difference of the absolute blast at two ends, blast tunnel, described tunnel determines, tunnel blast It it is quantitative data；

A_Q(e_i) it is tunnel air quantity, described tunnel air quantity represents the size of ventilation in tunnel, and tunnel airflow meter is quantitatively to count According to.

The wherein breadth-first search described in step (2):

Wherein the foundation centered by with wind point described in step (2) is along searching tunnel collection and referring to against searching tunnel collection:

Determine according to tunnel type attribute and use wind point, then according to the wind direction attribute of tunnel type, with BFS Flowing search and inverted air current analysis, the suitable of foundation wind point searches tunnel collection and against searching tunnel collection respectively with the wind,

Wherein along searching tunnel collection: set air channel e_iFor using wind point, then air quantity is gathered partially or completely from the air channel of wind point, Use E_For(i)Represent；

Against searching tunnel collection: set air channel e_iFor using wind point, then the air quantity partly or entirely inflow air channel of wind point is gathered, and uses E_Back(i)Represent.

Wherein the division methods of the ventilation network six class security partitioning described in step (3) is as follows:

Set up air flow in laneway constitute relational matrix R, the distinguished and admirable constituent relation in each two tunnels of element representation therein, r_i,jRepresent tunnel e_iFlow into or from tunnel e_jAir quantity account for tunnel e_iThe ratio of air quantity.

Use wind district: be actually with wind point to the extension of upstream and downstream with wind district, contact close tunnel composition with wind point, The air quantity being usually expressed as the tunnel with wind district all is from using wind point, or all inflow wind points.With wind district E_Use(i)Set up such as Shown in following formula (2)

E_Use(i)={ e_j|r_i,j=100% | | r_j,i=100%} (2)

Air intake district: establish inverse search tunnel collection after, ask the public inverse of the useful wind point of institute to search tunnel, i.e. against searching tunnel collection Occur simultaneously just for the air intake district of ventilation network, calculate by formula (3),

$E_{\mathrm{In}}=\underset{i=1}{\overset{k}{\∩}}{E}_{\mathrm{Back}\left(i\right)}---\left(3\right)$

Return zone: setting up along after searching tunnel collection, asking the public along searching tunnel of the useful wind point of institute, the i.e. suitable friendship searching tunnel collection Integrating the return zone as ventilation network, calculate by formula (4), complicated wind net has multiple blower fan and returnairshaft, can build respectively The return zone of vertical each blower fan,

$E_{\mathrm{Out}}=\underset{i=1}{\overset{k}{\∩}}{E}_{\mathrm{For}\left(i\right)}---\left(4\right)$

Use Feng Qu upstream: be distinguished and admirable excessive from air intake district to wind district with Feng Qu upstream, be the most mature and stable logical Wind region, the probability typically gone wrong is little, and sensor is the most less, can carry out management and control as a region, with in wind district Being calculated as of trip: deduct use wind district with the inverse tunnel collection of searching of wind point, then deduct air intake district, calculate by formula (5),

E_Ups(i)=E_Back(i)-E_In-E_Use(i) (5)

Use Feng Qu downstream: function and significance is similar, with being calculated as of Feng Qu downstream: use Feng Dianshunsou lane with Feng Qu upstream Road collection deducts uses wind district, then deducts return zone, calculates by formula (6),

E_Downs(i)=E_For(i)-E_Out-E_Use(i) (6)

Bypass district: all types of regions more than removing in ventilation network, the most remaining for bypassing district, count by formula (7) Calculate,

$E_{\mathrm{other}}=E-\underset{i=1}{\overset{k}{\∪}}{E}_{\mathrm{Back}\left(i\right)}\underset{i=1}{\overset{k}{\∪}}{E}_{\mathrm{For}\left(i\right)}---\left(7\right)$

The invention discloses a kind of security partitioning based on BFS division methods, it is possible to by ventilation network by not Be divided into six class regions with characteristic: air intake district, return zone, with wind district, with Feng Qu upstream, with Feng Qu downstream and bypass district.Propose Centered by with wind point (stope, driving face), based on the BFS process in graph theory, and combine and draw Algorithm is divided to achieve the automatic division of coalmine ventilation network.

The invention have the advantage that set up security partitioning can carry out management and control as relatively independent region, when occurring passing During the abnormalities such as sensor data fluctuation and gas alarming, more targeted Source Tracing can be carried out.Will problem Source quickly navigates in one or several subregion, with guide field management personnel, attention is quickly focused on most probable and occurs The region of problem, it is simple to the discovery in problem source.Thus Added Management person carries out the ventilation safety management work in colliery.

Accompanying drawing explanation

Fig. 1 is security partitioning of the present invention type schematic diagram.

Fig. 2 is BFS spanning tree of the present invention.

Fig. 3 is ventilation network security partitioning of the present invention partitioning algorithm flow chart.

Fig. 4 is embodiment of the present invention Huang Ling two ore deposit partial ventilation system.

Fig. 5-1 is that the suitable of 62-86 stope of the present invention searches tunnel and against searching tunnel.

Fig. 5-2 is that the suitable of 78-79 stope of the present invention searches tunnel and against searching tunnel.

Fig. 5-3 is that the suitable of 94-96 development end of the present invention searches tunnel and against searching tunnel.

Fig. 5-4 is that the suitable of 93-95 development end of the present invention searches tunnel and against searching tunnel.

Fig. 6 is the division schematic diagram of embodiment of the present invention ventilation safety subregion.

Detailed description of the invention

With concrete example, present invention is described in further details below in conjunction with the accompanying drawings

One, the whole implementation method flow of invention

Ventilation network BFS process, security partitioning partitioning algorithm combine, and just define complete colliery and lead to Wind network security subregion division methods, its process is as shown in Figure 3.First according to the actual ventilation network of mine, mine is set up Attributed graph model G；Set up the air quantity constituent relation matrix R in each tunnel；According to air quantity constituent relation foundation wind district E_Use(i)； Then select one and use wind point, to carry out BFS with wind point for beginning node, set up the suitable of each wind point and search tunnel Collection E_For(i)；Then wind point is taken along searching union that tunnel integrates as return zone E_Out；Set up with Feng Qu downstream E by formula (6)_Downs(i)； By reverse for the direction of the wind direction attribute in tunnel in attributed graph model G；Then select one and use wind point, to enter for beginning node with wind point Row BFS, sets up the inverse of each wind point and searches tunnel collection E_Back(i)；Then wind point is taken along the union searching tunnel collection For air intake district E_In；Set up with Feng Qu downstream E by formula (5)_Ups(i)；Back-pushed-type (7) sets up bypass district E_Other。

Two, the division principle of security partitioning

The security partitioning of ventilation network refers to from mire ventilation safety angle, with the distinguished and admirable relation that affects as foundation, Ventilation network is divided in terms of ventilation safety the relatively independent regional ensemble having certain general character.Can be seen that security partitioning Division need to meet integrity, the principle such as relation is clear and definite, the degree of coupling is low and business is complete.Specific Principles is as follows:

Security partitioning must have integrity.Only structural integrity, boundary within each security partitioning ventilates and believes Cease perfect, could be aerated analyzing, calculating and manage for subregion inside.Need the tunnel phase in security partitioning specifically Intercommunicated, structural integrity；The air intake of subregion, return air part node clearly, information completely.Only ensure that the complete of security partitioning Whole property could realize relatively independent performance of ventilating analysis and management and control；

Upstream-downstream relationship between security partitioning is clear and definite.The conduction of ventilation safety problem is a mistake being from upstream to downstream Journey.After a certain tunnel there is a problem, affected by wind direction, the downstream area of himself can be affected.Specify that subregion Upstream and downstream, then can effectively instruct discovery and the management and control of problem.

The degree of coupling between security partitioning is relatively low: the influence each other the fewest more analysis be easy in region and the pipe between security partitioning Reason, when being aerated subregion, should reduce the degree of coupling between each subregion, i.e. boundary node is the fewest, and node is attached The ventilation situation in nearly tunnel is relatively stable.So manager need not too much note the situation of connected regions, and can concentrate one's energy to locate The problem in district is paid close attention to before should.

Operation system should not split by security partitioning: ventilates and serves primarily in each setting, therefore should during zoning Consider the needs of operation system, the tunnel closely coupled with a certain business is included in a region.As with stope The air intake, the return aircourse that are joined directly together should be divided in a region with stope, so could support more targetedly to make The ventilation safety analysis of industry point and management.

Three, the attribute in colliery connects figure

The ventilation network in colliery is converted to mine attribute connected-graph model, and with G={V, E, A} represent.Wherein, V represents wind Net node set；E represents the set in tunnel；A represents that community set, attribute information include following ATTRIBUTE INDEX and data class Type:

A(e_i)={ A_Type(e_i),A_D(e_i)A_P(e_i),A_Q(e_i)}

A_Type(e_i) it is tunnel type, described tunnel leads to type and represents the functional attributes in tunnel, when tunnel type is coal-getter Make when face, driving face, to show that this tunnel is quantitative attributes for using wind point, tunnel type；

A_D(e_i) it is tunnel wind direction, the direction that described tunnel wind direction is distinguished and admirable in representing tunnel, tunnel wind direction Boolean table Showing, described tunnel wind direction is qualitative data；

A_P(e_i) it is tunnel blast, the difference of the absolute blast at two ends, blast tunnel, described tunnel determines, tunnel blast It it is quantitative data；

A_Q(e_i) it is tunnel air quantity, described tunnel air quantity represents the size of ventilation in tunnel, and tunnel airflow meter is quantitatively to count According to.

Each security partitioning is made up of some air channels, uses a subset of air channel set E to identify.Owing to safety is divided Division is emphasized towards using wind point, so a part of subregion needs to be identified by with wind point tunnel.

Four, the BFS that security partitioning divides

In order to carry out security partitioning division, need first to carry out searching for the stream with the wind of wind point and inverted air current search.The present invention Use breadth-first search that each wind point is scanned for, set up corresponding along searching tunnel collection and against searching tunnel collection, make The basis divided for security partitioning.

Width first traversal is a kind of hierarchical searching method in graph theory, is representing utilization range in ventilation network with directed graph First search, what what the spanning tree obtained can be apparent from represented between air channel affects relation, can be used for carrying out suitable with wind point Wind search and against the wind search.

As shown on the left of Fig. 2, a ventilation network is carried out BFS, by search is inverse search tunnel collection as a example by, first First that the direction of directed graph is reverse, then scan for: if air channel 2-1 is for use wind point, then with node v₁For root node；Then Add with v₁All directed node (v for beginning node₂) as the 1st layer set, and be labeled as accessing；Again to access Node is beginning node, and search, with its directed node being beginning node, if not accessing node then as its next layer, and is marked Note；Repeat this process, i.e. available BFS spanning tree as shown in Figure 2.

Breadth-first search is as follows:

Wherein, the degree of depth of node BFN (v_j) represent；Father node Father (the v of each node_j) represent；Access identities With Mark (p_root) represent, 1 is the node accessed；The fifo queue Q of node represents.

Five, the division of security partitioning

Ventilation safety subregion is a kind of segmentation to complicated ventilation network, by the foundation of security partitioning, can pacify for colliery Full analysis, management and the disaster produced is disposed and is provided valuable foundation and information.

Coalmine ventilation network is divided into different security partitionings, needs first to flow search centered by wind point with the wind Searching for inverted air current, the suitable of foundation wind point searches tunnel collection and against searching tunnel collection respectively.Along searching tunnel collection: set air channel e_iFor with wind Point, then air quantity is gathered partially or completely from the air channel of wind point, uses E_For(i)Represent；Against searching tunnel collection: set air channel e_iFor with wind Point, then the air quantity partly or entirely inflow air channel of wind point is gathered, and uses E_Back(i)Represent.If the k of ventilation network is individual with wind point minute Wei e₁,e₂,…,e_k, set up centered by these are with wind point along search tunnel collection and inverse search tunnel collection after, six class security partitionings Division methods is specific as follows:

Use wind district: in close relations with wind point with the tunnel in wind district, because these air channels distinguished and admirable or be entirely derived from Use wind point, or fully flow into and use wind point, it is therefore desirable to by wind net two-by-two the distinguished and admirable constituent relation in tunnel divide and use wind district. The relation that air flow in laneway is constituted can use air quantity constituent relation matrix R to represent, each two tunnels of element representation therein distinguished and admirable Constituent relation, r_i,jRepresent tunnel e_iFlow into or from tunnel e_jAir quantity account for tunnel e_iThe ratio of air quantity.Such as r_1,2=100% table Show tunnel e₁Flow into or from tunnel e₂Air quantity account for tunnel e₁The ratio of air quantity is 100%, i.e. tunnel e₁Apoplexy all flow into or From tunnel e₂；Such as r_2,1=50% represents tunnel e₂Flow into or from tunnel e₁In air quantity account for tunnel e₂The ratio of air quantity is 50%, i.e. tunnel e₂In wind half flow into or from tunnel e₁。

It is actually with wind point to the extension of upstream and downstream with wind district, contacts close tunnel composition, usual table with wind point The air quantity in the tunnel in Xian Weiyongfeng district all is from using wind point, or all inflow wind points.With wind district E_Use(i)Set up such as following formula (2) shown in.

E_Use(i)={ e_j|r_i,j=100% | | r_j,i=100%} (2)

Air intake district: establish inverse search tunnel collection after, ask the public inverse of the useful wind point of institute to search tunnel, i.e. against searching tunnel collection Occur simultaneously just for the air intake district of ventilation network, calculate by formula (3).It should be noted that the ventilation network meeting that complexity is higher There is multiple downcast, air intake district can be set up respectively for each downcast.

$E_{\mathrm{In}}=\underset{i=1}{\overset{k}{\∩}}{E}_{\mathrm{Back}\left(i\right)}---\left(3\right)$

Return zone: setting up along after searching tunnel collection, asking the public along searching tunnel of the useful wind point of institute, the i.e. suitable friendship searching tunnel collection Integrate the return zone as ventilation network, calculate by formula (4).Complicated wind net has multiple blower fan and returnairshaft, can build respectively The return zone of vertical each blower fan.

$E_{\mathrm{Out}}=\underset{i=1}{\overset{k}{\∩}}{E}_{\mathrm{For}\left(i\right)}---\left(4\right)$

Use Feng Qu upstream: be distinguished and admirable excessive from air intake district to wind district with Feng Qu upstream, be the most mature and stable logical Wind region, the probability typically gone wrong is little, and sensor is the most less, can carry out management and control as a region.With in wind district Being calculated as of trip: deduct use wind district with the inverse tunnel collection of searching of wind point, then deduct air intake district, calculate by formula (5).

E_Ups(i)=E_Back(i)-E_In-E_Use(i) (5)

Use Feng Qu downstream: function and significance is similar, with being calculated as of Feng Qu downstream: use Feng Dianshunsou lane with Feng Qu upstream Road collection deducts uses wind district, then deducts return zone, calculates by formula (6).

E_Downs(i)=E_For(i)-E_Out-E_Use(i) (6)

Bypass district: all types of regions more than removing in ventilation network, the most remaining for bypassing district, count by formula (7) Calculate.

$E_{\mathrm{other}}=E-\underset{i=1}{\overset{k}{\∪}}{E}_{\mathrm{Back}\left(i\right)}\underset{i=1}{\overset{k}{\∪}}{E}_{\mathrm{For}\left(i\right)}---\left(7\right)$

The type of security partitioning is illustrated as shown in Figure 1.

Six, embodiment

As a example by ore deposit, Huang Ling two, safety of coal mines partition method proposed by the invention is verified.Ore deposit, Huang Ling two sets Meter production capacity is annual 7000000, and mine uses slope development mode, single coal seam list level development, uses partition type to ventilate. The complete ventilating system in ore deposit, Huang Ling two is extremely complex, as a example by example uses the part in this ore deposit, and has carried out suitable simplification, Selected partial ventilation system contain four air inlets and one go out return air inlet, total nearly 60 tunnels, as shown in Figure 4.

This part has four to use wind point, including two stopes (62-86,78-79) and two development end (94-96, 95-98).The method based on BFS proposed with the present invention, first searches tunnel collection and against searching to four with the suitable of wind point Tunnel collection is analyzed, and result is as shown in Fig. 5-1,5-2,5-3,5-4.

Along search tunnel collection and inverse search tunnel collection on the basis of, the security partitioning partitioning algorithm set up with the present invention is to this Ventilating system is analyzed, and is finally obtained the security partitioning result of this ventilating system, as shown in Figure 6.Wherein cover this The six of bright proposition big security partitioning type, is marked in the drawings with different lines, due to wherein more with wind point, is not differentiated between The difference upstream and downstream of wind point, the details of this part can be checked in conjunction with the content of Fig. 5-1,5-2,5-3,5-4.

Analyzed it can be seen that safety analysis division side based on BFS proposed by the invention by examples detailed above Method, it is possible to effectively split ventilating system, the multiple security partitioning set up has clear and definite ventilation implication, is suitable to make Management and control is carried out for relatively independent region, in conjunction with the disaster source tracing method based on security partitioning proposed, can Added Management person Carry out the ventilation safety management work in colliery.

In sum, the present invention establishes the concept of ventilation network security partitioning, and gives its division principle, establishes The security partitioning of six quasi-representatives, and construct security partitioning division methods based on BFS.By complicated ventilation network After being divided into some security partitionings, each region has certain structure and business independence, so divides in the system of being aerated When analysis and management, can be managed by different grain size layering, it is simple to technical staff and manager grasp the relation of each by stages With the situation of total system, be conducive to expanding management means, promote the level of coal mine safety management, promote mire ventilation safety Fine-grained management.

Being described in detail present invention above, technical scheme is not limited to above-mentioned specific embodiment Restriction, the explanation of above example is only intended to help to understand method and the core concept of the present invention.It should be pointed out that, for this For the those of ordinary skill of technical field, under the premise of not departing from the present invention, it is also possible to invention is carried out some improvement and Modify, also fall in the protection domain of the claims in the present invention.

Claims (5)

1. one kind towards the mine ventilation network security partitioning division methods of wind point, it is characterised in that comprise the steps of

(1) mine attribute connected-graph model is set up, by topological structure and the attribute information expressed intact in addition of mine；

(2) utilizing breadth-first search to analyze the topological structure of mine attribute connection figure, the suitable of foundation wind point searches tunnel Collect and against searching tunnel collection；

(3) set up security partitioning partitioning algorithm, with wind point along search tunnel collection and inverse search tunnel collection on the basis of, by ventilation network It is divided into six class security partitionings.

2. as claimed in claim 1 towards the mine ventilation network security partitioning division methods of wind point, it is characterised in that step Suddenly mine attribute connected-graph model in (1), this model G={V, E, A} represent, wherein V represents wind net node set；E represents The set in tunnel；A represents that community set, attribute information include following ATTRIBUTE INDEX and data type:

A(e_i)={ A_Type(e_i),A_D(e_i)A_P(e_i),A_Q(e_i)}

A_Type(e_i) be tunnel type, described tunnel type represents the functional attributes in tunnel, when tunnel type be coal-face, Show during driving face that this tunnel is quantitative attributes for using wind point, tunnel type；

A_D(e_i) it is tunnel wind direction, the direction that described tunnel wind direction is distinguished and admirable in representing tunnel, tunnel wind direction Boolean represents, institute Stating tunnel wind direction is qualitative data；

A_P(e_i) it is tunnel blast, the difference of the absolute blast at two ends, blast tunnel, described tunnel determines, tunnel blast is fixed Amount data；

A_Q(e_i) it is tunnel air quantity, described tunnel air quantity represents the size of ventilation in tunnel, and tunnel air quantity is quantitative data.

3. as claimed in claim 1 towards the mine ventilation network security partitioning division methods of wind point, it is characterised in that step Suddenly the breadth-first search described in (2):

4. as claimed in claim 1 towards the mine ventilation network security partitioning division methods of wind point, it is characterised in that step Suddenly (2) are set up centered by with wind point along searching tunnel collection and referring to against searching tunnel collection:

Determine according to tunnel type attribute and use wind point, then according to the wind direction attribute of tunnel type, carry out with BFS Stream search and inverted air current analysis with the wind, the suitable of foundation wind point searches tunnel collection and against searching tunnel collection respectively,

Wherein along searching tunnel collection: set air channel e_iFor using wind point, then air quantity is gathered partially or completely from the air channel of wind point, uses E_For(i)Represent；

Against searching tunnel collection: set air channel e_iFor using wind point, then the air quantity partly or entirely inflow air channel of wind point is gathered, and uses E_Back(i) Represent.

5. as claimed in claim 1 towards the mine ventilation network security partitioning division methods of wind point, it is characterised in that step Suddenly in (3), the division methods of ventilation network six class security partitioning is as follows:

Set up the relational matrix R that air flow in laneway is constituted, the distinguished and admirable constituent relation in each two tunnels of element representation therein, r_i,j Represent tunnel e_iFlow into or from tunnel e_jAir quantity account for tunnel e_iThe ratio of air quantity,

$R={\left[\begin{array}{cccc}0& r_{1,2}& L& r_{1,n}\\ r_{2,1}& 0& L& r_{2,n}\\ M& M& O& M\\ r_{n,1}& r_{n,2}& L& 0\end{array}\right]}_{n\×n}---\left(1\right)$

Use wind district: be actually with wind point to the extension of upstream and downstream with wind district, contact close tunnel composition, generally with wind point The air quantity showing as the tunnel with wind district all is from using wind point, or all inflow wind points, with wind district E_Use(i)Set up such as following formula (2) shown in

E_Use(i)={ e_j|r_i,j=100% | | r_j,i=100%} (2)

Air intake district: establish inverse search tunnel collection after, ask the public inverse of the useful wind point of institute to search tunnel, i.e. against the common factor searching tunnel collection Just for the air intake district of ventilation network, calculate by formula (3),

$E_{In}=\underset{i=1}{\overset{k}{I}}{E}_{Back\left(i\right)}---\left(3\right)$

Return zone: setting up along after searching tunnel collection, asks the public along searching tunnel of the useful wind point of institute, i.e. suitable search tunnel collection common factor be The return zone of ventilation network, calculates by formula (4), and complicated wind net has multiple blower fan and returnairshaft, can set up every respectively The return zone of individual blower fan,

$E_{Out}=\underset{i=1}{\overset{k}{I}}{E}_{For\left(i\right)}---\left(4\right)$

Use Feng Qu upstream: be distinguished and admirable excessive from air intake district to wind district with Feng Qu upstream, be the most mature and stable plenum area Territory, the probability typically gone wrong is little, and sensor is the most less, can carry out management and control as a region, with Feng Qu upstream It is calculated as: deduct use wind district with the inverse tunnel collection of searching of wind point, then deduct air intake district, calculate by formula (5),

E_Ups(i)=E_Back(i)-E_In-E_Use(i) (5)

Use Feng Qu downstream: function and significance is similar with Feng Qu upstream, with being calculated as of Feng Qu downstream: with wind point along searching tunnel collection Deduct and use wind district, then deduct return zone, calculate by formula (6),

E_Downs(i)=E_For(i)-E_Out-E_Use(i) (6)

Bypass district: all types of regions more than removing in ventilation network, the most remaining is bypass district, calculates by formula (7),

$E_{Other}=E-\underset{i=1}{\overset{k}{U}}{E}_{Back\left(i\right)}\underset{i=1}{\overset{k}{U}}{E}_{For\left(i\right)}---\left(7\right).$