CN104265349B - A kind of mine ventilation system construction method based on DIMINE softwares - Google Patents
A kind of mine ventilation system construction method based on DIMINE softwares Download PDFInfo
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- 238000005516 engineering process Methods 0.000 claims abstract description 6
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- 238000004088 simulation Methods 0.000 claims abstract description 6
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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
- E21F1/02—Test models
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Abstract
The invention discloses a kind of mine ventilation system construction methods based on DIMINE softwares, pass through DIMINE software building mine ventilation system threedimensional models, ventilating system threedimensional model for the DIMINE file formats built, it is converted into the file format that 3DVent softwares can be compatible with, it is required according to Ventilation Network Solution technology, with reference to mine actual conditions, complete the Ventilation Network Solution work in mine, according to Ventilation Network Solution result, the Design of Ventilation System in mine is completed to work with the scheme optimization of transformation, according to Ventilation Network Solution result, carry out Ventilation Network Solution result three-dimensional visualization and distinguished and admirable animation simulation software realizes technical research, the true three-dimensional visualization of the Ventilation Network Solution result in mine and distinguished and admirable animation simulation are realized using software.It this invention simplifies process of solution, improves work efficiency and accuracy, electric energy can be saved, ventilation cost is reduced, improve underground microclimate condition, good operating environment is created for underground work personnel.
Description
Technical field
The invention belongs to pit mining journey technical field more particularly to a kind of mine ventilation systems based on DIMINE softwares
Construction method.
Background technology
As superficial part mineral resources have tended to be exhausted, the existing part non-coal mine in the country enters the following mining phase of km.
The increase of mining depth results in many mining technique problems, and wherein ventilating problem is especially prominent.It is with a long history for digging up mine,
Mining depth is deeper, and tunnel is intricate, while the stage casing of operation is more, and work surface dispersion, air feed circuit is long, leaks out big, and
Goaf and the not closed non-coal mine of waste roadway, ventilation is more difficult, and ventilation high energy consumption, fan efficiency are low, ventilation effect
It is undesirable.Such mine, if using multi fan Multi-stage station ventilation method, effect can improve significantly.
Multi fan Multi stages ventilation is in the 1980s, China borrows on the basis of national aeration technology and experience is summarized
The experience of mirror Sweden Kiruna iron ore, a kind of new and effective method of ventilation of proposition.Multi fan Multi-stage station ventilation method is to adopt
With in parallel between wind turbine at the same level, connect between wind turbines at different levels.It is the ventilation pressure using machine stations at different levels wind turbine, is respectively overcome each
Machine station undertakes local resistance and the on-way resistance of range, by it is fresh it is distinguished and admirable be constantly transported to each setting in underground, dirt
Harmful gas, dust etc. water down and discharge earth's surface.Using multi fan Multi-stage station ventilation there is pressure to be evenly distributed, leak out
It is small, blower fan work is efficient, air volume control is flexible, effective of wind amount rate is high and low power consumption and other advantages, be it is a kind of generally apply to it is non-
The method of ventilation of coal underground mine.
Using multi fan Multi-stage station ventilation method, several or even tens of Fans need to be mounted on underground.Due to wind turbine
Disperse more, cause ventilating management difficult.If design manages unreasonable, recirculating air flow can be formed or even wind turbine can be made
In unstable, inefficient state operation.Therefore, it if can quickly and accurately be resolved to ventilation network, is tied using resolving
Fruit analysis in time and the ventilation condition for improving underground, to mine, the improvement of practical safety production situation is of great significance.
In Ventilation Network Solution, it is always outstanding problem that basic data, which prepares cumbersome and error correction difficulty,.Traditional wind net
Software requirement manual drawing ventilation network map is resolved, then network node and branch are numbered, basic data settlement and input, this
It is work very cumbersome in local building.The especially complicated ventilation network of large-scale mine, is completed on hundred one by one by hand
The Data Preparation of thousand numbers is extremely difficult.Main problem is that manual operations is time-consuming, laborious, efficiency is low, error-prone,
Cause error correction in solution process and project setting there are larger difficulty, so as to be difficult to ensure that the reliability of calculation result.
If the Ventilation Network Solution Software of three-dimensional visualization can be used, it is three-dimensional that ventilating system is drawn in three-dimensional software
Automatic building topology relationship while figure then to node and branch's automatic numbering, both simplifies process of solution in this way, time saving fast
Victory greatlys improve efficiency and accuracy, and local building and the situation of error correction difficulty can be made to obtain radical change, so as to
Or company carries out ventilation standardized management and provides safeguard.
Invention content
The purpose of the present invention is to provide a kind of mine ventilation system construction methods based on DIMINE softwares, it is intended to simplify
Step is calculated, improves settlement efficiency and accuracy, reduces ventilation cost, good operating environment is founded for underground work personnel.
The invention is realized in this way a kind of mine ventilation system construction method based on DIMINE softwares includes：
Step 1: on the basis of the existing function of DIMINE softwares, according to the original three-dimensional roadway model in mine, structure is logical
Wind system threedimensional model, and improve soft according to project team member's three-dimensional software application experience and Design of Ventilation System requirement, assistance
Part existing capability, and form 3DVent softwares and build ventilating system threedimensional model automatically, complete the ventilation network three-dimensional mould in mine
Type is built；
Step 2: for the ventilating system threedimensional model of the DIMINE file formats built, it is converted into 3DVent
The file format that software can be compatible with；
Step 3: after completing software and building ventilating system threedimensional model function automatically, using software, and according to ventilation
The requirement of network solving technique with reference to mine actual conditions, completes the Ventilation Network Solution work in mine；
Step 4: according to Ventilation Network Solution as a result, carrying out Design of Ventilation System and the scheme optimization software realization of transformation
Technical research using multi-scheme data sharing technology, completes the Design of Ventilation System in mine and works with the scheme optimization of transformation；
Step 5: according to Ventilation Network Solution as a result, carrying out Ventilation Network Solution result three-dimensional visualization and distinguished and admirable animation
Simulation software realizes technical research, is visualized using the true three-dimensional of the Ventilation Network Solution result in software realization mine and distinguished and admirable
Animation simulation.
It further, only need to be according to the well of the original DIMINE file formats in each mine when building ventilating system threedimensional model
Lane engineering model increases center line using " 2 ratio lines " order in DIMINE digital mine software line editting functions, uses
Center line represents ventilation routes, while according to firsthand information, the well lane engineering as ventilation routes newly opened is supplemented
It is perfect.
Further, ventilating system model file format conversion is * .3ds formatted files.
Further, Ventilation Network Solution uses, 3DVent softwares, and idiographic flow is：1. build ventilating system threedimensional model；
2. initiation parameter；3. create airway；4. input basic data；5. check ventilation network；6. it irises wipe mesh and just intends wind
Amount (software backstage is automatically performed)；7. Fan Selection；8. it iterates to calculate；9. air quantity is adjusted, air regulator, preferably auxiliary fan are calculated；It is 10. defeated
Go out network calculation result.
Further, three-dimensional visualization and distinguished and admirable animation simulation are carried out using 3DVent softwares.
Effect summarizes
Beneficial effects of the present invention are as follows：
(1) 3DVent softwares can realize that multi fan multi-fan-station ventilation network resolves；It can realize entire ventilating system
The wind turbine of each installation point is virtual, preferably, parameter calculates；It can realize that the air quantity in special branch tunnel is adjusted；It can realize resolving
As a result three-dimensional visualization and distinguished and admirable animation simulation.
(2) ventilating system threedimensional model is built using three-dimensional visualization ventilation software, can intuitively reflects ventilation roadway
Position, length and connection relation and wind direction, air quantity, ventilation equipment facility etc.；It is established automatically while building model
Topological relation both simplifies process of solution, improves work efficiency and accuracy, and makes local building and the shape of error correction difficulty
Condition has obtained radical change.
(3) by Dahongshan Copper Mine rice bottom, region real data does not verify this system, and calculation result is carried out
Analysis shows Mine Ventilation Network Solution science, reliable of the 3DVent softwares for multi fan Multi stages ventilation.The software can be made
For the tool of Design of ventilation qualitative and quantitative analysis, the tool of mine ventilation administrative staff is can also be used as, helps ventilating management
Technical staff pinpoints the problems and optimizes ventilation network in time, and help is provided for Design of ventilation and daily ventilating management.
(4) system design, scheme optimization, the system reform and visualization is aerated using three-dimensional visualization ventilation software to manage
Reason can save electric energy, reduce ventilation cost, improve underground microclimate condition, and good operation is created for underground work personnel
Environment.
Description of the drawings
Fig. 1 is the mine ventilation system construction method flow chart provided in an embodiment of the present invention based on DIMINE softwares.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, it is right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Fig. 1 shows the mine ventilation system construction method flow based on DIMINE softwares of the present invention, as shown in the figure, one
Mine ventilation system construction method of the kind based on DIMINE softwares includes：
S101：On the basis of the existing function of DIMINE softwares, according to the original three-dimensional roadway model in mine, structure ventilation
System threedimensional model, and software is improved according to project team member's three-dimensional software application experience and Design of Ventilation System requirement, assistance
Existing capability, and form 3DVent softwares and build ventilating system threedimensional model automatically, complete the ventilation network threedimensional model in mine
Structure；
S102：Ventilating system threedimensional model for the DIMINE file formats built, it is soft to be converted into 3DVent
The file format that part can be compatible with；
S103：After completing software and building ventilating system threedimensional model function automatically, using software, and according to ventilated net
The requirement of network solving technique with reference to mine actual conditions, completes the Ventilation Network Solution work in mine；
S104：According to Ventilation Network Solution as a result, carrying out Design of Ventilation System and the scheme optimization software realization skill of transformation
Art research using multi-scheme data sharing technology, completes the Design of Ventilation System in mine and works with the scheme optimization of transformation；
S105：According to Ventilation Network Solution as a result, development Ventilation Network Solution result three-dimensional visualization and distinguished and admirable animation are imitated
The true three-dimensional visualization and wind flow of the Ventilation Network Solution result in mine are realized in true Software Realization Technique research using software
Draw emulation.
It further, only need to be according to the well of the original DIMINE file formats in each mine when building ventilating system threedimensional model
Lane engineering model increases center line using " 2 ratio lines " order in DIMINE digital mine software line editting functions, uses
Center line represents ventilation routes, while according to firsthand information, the well lane engineering as ventilation routes newly opened is supplemented
It is perfect.
Further, ventilating system model file format conversion is * .3ds formatted files.
Further, Ventilation Network Solution uses, 3DVent softwares, and idiographic flow is：1. build ventilating system threedimensional model；
2. initiation parameter；3. create airway；4. input basic data；5. check ventilation network；6. it irises wipe mesh and just intends wind
Amount (software backstage is automatically performed)；7. Fan Selection；8. it iterates to calculate；9. air quantity is adjusted, air regulator, preferably auxiliary fan are calculated；It is 10. defeated
Go out network calculation result.
Further, three-dimensional visualization and distinguished and admirable animation simulation are carried out using 3DVent softwares.
One Dahongshan Copper Mine local building of embodiment and system evaluation
It is bright red using DIMINE digital mine software buildings at the scene after investigation Dahongshan Copper Mine ventilating system ventilation present situation
The existing ventilating system threedimensional model of mountain copper mine.
It is required according to Ventilation Network Solution, it, only need to be original according to Dahongshan Copper Mine when building ventilating system threedimensional model
The well lane engineering model of DIMINE file formats utilizes " the 2 ratio lines " in DIMINE digital mine software line editting functions
Order increases center line, and ventilation routes are represented with center line.Simultaneously according to firsthand information, to newly opening as ventilation routes
Well lane engineering supplement perfect.
1st, it when building Dahongshan Copper Mine ventilating system threedimensional model, in ventilation routes turnoff, is ordered using " point interrupts "
It enables, center line into Break Row is operated, forms branch and node, work is ready for subsequent network resolving.Each branch, node
It is connected with each other (except the node of logical earth's surface).To prevent from being connected with each other the false connection of appearance in the process between node, in structure mould
During type, ordered as possible using " capture " that DIMINE softwares provide.
2nd, carry out network using replacement software 3DVent and resolve work.Therefore, the DIMINE file formats for building
Ventilating system threedimensional model, need to be further converted into the file format that 3DVent softwares can be compatible with.
Off the shelf software is researched and analysed, solves the file format compatibling problem between two software.It can incite somebody to action
The file of DIMINE forms is conveniently transferred to 3DVent softwares by AutoCAD softwares.
3rd, before local building basic data input is carried out it may first have to which rice bottom, zonal ventilation system description is not three-dimensional
The file of model .3ds forms is converted to the ventilation network threedimensional model with local building parameter attribute.Above-mentioned work is completed
Afterwards, it then can be carried out local building basic data input service.The main position for including 139 branch headings, is rubbed at type
Wipe resistance coefficient, basal area, perimeter, natural ventilation pressure and local resistance, the position of 10 constant current branch headings and air quantity, 6 dresses
The position of machine point and actual measurement air quantity.Parameter typing must be carried out to each branch heading, it is impossible to have omission.This is inputted each
The air quantity of installation point is to be subject to revised data according to project team's field measurement, as shown in table 1.
Region field measurement is not subject to revised each installation point air quantity at table 1 meter of bottom
4th, the basic data input needed for local building finishes, you can into sector-style net inspection, the purpose of wind net inspection is main
Be by " ventilation " → " check network " order, check entire ventilation network connection earth's surface into, return air branch heading, constant current lane
Whether road and the setting of installation tunnel hold water, and with the presence or absence of phenomenon is not interrupted, each branch node is for each branch heading turnoff
It is no to there is false connection etc..
By checking network, modified according to miscue.It has been finally completed rice bottom not zonal ventilation Network Check work
Make, whole network includes 139 branches, 103 nodes, 37 mesh, 10 fixed air quantity tunnels, 6 installation point tunnels altogether.
5th, ventilation present situation network resolves, after ventilation network has checked, you can carries out the rice bottom wind that region is not installed respectively a little
Machine type selecting.
For each installation point, software all can be according to air quantity, Virtual Fan Pressure, number of units in parallel, series connection series and related calculation
Method is retrieved one by one from wind turbine database, all wind turbines for meeting this installation point condition is listed in table, user can be according to reality
Border needs, the wind turbine model that oneself is selected to be satisfied with.
Due to being that zonal ventilation system description does not carry out network resolving to Dahongshan Copper Mine rice bottom, mine has mating wind
Machine equipment, therefore in Fan Selection, we are as far as possible using having wind turbine, so that the better reaction system of calculation result shows
Shape.
According to the principle of Fan Selection, type selecting is carried out to the installation point wind turbine of the rice bottom not existing normal operation in region, finally
Wind turbine model for 6 installation point selections is as shown in table 2.
2 meters of bottoms of table not free wind turbine of zonal ventilation network software
Airway Network Check is errorless, after the completion of Virtual Fan Pressure, the preferred wind turbine of air quantity, you can carries out meter Di Mo areas
Domain ventilation network iterative calculation.It is ordered by " iterative calculation ", if resolved successfully, software can show that " solution is counted as in information bar
The prompt message of work(".If resolving is unsuccessful, software can pop up corresponding dialog box, and provide corresponding prompt message, user
It needs, according to prompt message, to be adjusted ventilation network and parameter, be resolved again after the completion of adjustment, until software prompt solution
It is counted as work(.The results are shown in Table 3 for the rice bottom the being finally completed wind turbine iterative calculation that zonal ventilation network is not installed respectively a little.
Zonal ventilation network is not installed respectively a wind turbine iterative calculation result at table 3 meters of bottoms
In iterative process, the mesh comprising constant current branch heading will not participate in iteration.Therefore after the completion of iterating to calculate,
It needs to calculate the mesh comprising constant current branch, i.e., air quantity is adjusted.
The rice bottom being finally completed not zonal ventilation network constant current branch heading air quantity regulating calculation result as shown in table 4,5.
4 meters of bottoms of table not zonal ventilation network air regulator regulating calculation result
5 meters of bottoms of table not zonal ventilation network booster control result of calculation
Due to 9 bottom of rice, region does not belong to the part of bright red 2 mountain copper mine, 4 entire 3 into, 0 system of return air system all with our department's system
Be connected, be the accuracy for not influencing calculation result when individually carrying out rice bottom zonal ventilation network not resolving, we with our department
Connected tunnel is handled as lane of leaking out.Therefore, rice bottom not zonal ventilation network constant current branch heading air quantity tune is being carried out
In section (drop resistance adjust) result of calculation, occur No. 5, No. 9, No. 10 constant current branches adjust the excessive situation of air quantity, wind pressure, select
Power of fan is also bigger, does not deal with here, and when resolving our department's system in the future, they are included into our department's system, remakes unification
Consider.
Since the wind pressure value that No. 2 and No. 8 constant current branch headings need to be adjusted is very small, only more than ten pas even several pas, are nothings
Method preferably goes out auxiliary fan, can also also ignore not in practical application at the scene without the wind turbine of so small pressure in practical application
Meter.Therefore this two constant current branch headings do not have to install auxiliary fan.
The network carried out for the ventilating system present situation in rice bottom not region resolves, due to structure ventilating system threedimensional model side
Face, panel, working face are not built specifically, only regard rough wind passage as, quantity, air quantity and position are with actually having one
Set a distance, part roadway are given up, therefore can only substantially reflect distinguished and admirable distribution condition in systems.In terms of basic data, in well
When lane section, perimeter actual measurement, it is the several points for surveying a roadway, is then averaged, but this can not entirely accurate reaction
The windage of whole roadway；Do not consider the problems of natural ventilation pressure in the process of resolving and leak out, also other many restraining factors.
Therefore, calculation result can only precursor reactant whole system greatly allocation of the amount of air, element branches roadway and fan parameter and field measurement
There are some deviations also not at all surprising.
Calculation result is using database purchase and management, and after the completion of network resolves, software is automatically real by data and model
It is seamlessly connected between body, and is shown on ventilation network threedimensional model, user can easily check each branch heading
The relevant parameters such as number, windage, air quantity, wind speed, wind direction.The output of network calculation result is mainly defeated with Word document form
Go out.All information of calculation result are automatically write in Word document, to be written to finish, user can pass through Word document shape
Formula checks detailed calculation result.
For resolving as a result, by corresponding with threedimensional model, the allocation of the amount of air situation of each branch heading can be analyzed, respectively
Whether in rational property interval, constant current branch heading air quantity is adjusted as a result, ventilating system the fan condition point of installation point
Overall performane parameter etc..
By network calculation result it is found that rice bottom not zonal ventilation system description network：Tunnel item number=139；Node
Number=103；Computational accuracy=0.001；Constant current tunnel item number=10.Installation lane item number=6；Natural ventilation pressure number=0；Total air inlet
Item number=3；Always go out air way item number=3.The ventilating system overall performane parameter that network resolves：Total volume of return air 139.8m3/ s, total wind pressure
750.5Pa, total windage 0.0384Ns2/m8, equivalent orifice 6.08m2.Its detailed calculation result is shown in annex (Dahongshan Copper Mine rice bottom
Not zonal ventilation system description network calculation result).
About total windage, equivalent orifice and the Numerical accuracy of the drag overall problem in calculation result.The drag overall of mine
It calculates, is air quantity and the wind pressure according to total blast volume and wind turbine, first calculates equivalent orifice and windage, then with equivalent orifice or wind
Resistance value and total blast volume calculate drag overall value.Therefore, even same ventilating system, if the air quantity of total blast volume or wind turbine
It changes with the numerical value of wind pressure, the variation of equivalent orifice or windage value will be caused, and then cause the variation of drag overall value.This
Come, a system once being formed, changes regardless of the air quantity for flowing through mine, and windage value should be definite value.
Rice bottom not Local Area Network resolve during, it is contemplated that some inleakages to leak out a little, these it is distinguished and admirable mostly without
It rice bottom is crossed not inside district system, but flows to our department region, therefore, actually enter rice bottom not region mine built-in system
Total blast volume is not so big, therefore the equivalent orifice of mine is caused to become larger, and mine resistance becomes smaller.If the feelings leaked out are not accounted for
Condition, then the equivalent orifice of mine will become smaller, mine resistance will become larger.These are all that algorithm makes so.
6th, ventilating system Present assessment
This is mainly according to rice the bottom not investigation of zonal ventilation system for field, underground measured data and present situation network calculation result
Carry out system evaluation.
The rice bottom wind turbine that the existing wind turbine in region is not automatically selected with software network resolving is compared in order to clearer
Existing wind turbine is now listed in resolving the airflow pressure that fan parameter and each installation point calculate in table, joins in detail by analysis
Number is shown in Table 6.
Due to being that zonal ventilation system description does not resolve to rice bottom, whole system has wind turbine and is using, therefore
When carrying out network resolving, for the wind turbine of each installation point, we select mine wind turbine model currently in use now as far as possible
Network resolving is carried out, primarily to verifying the operation conditions of existing ventilating system, if the optimum state in balance and stability.
In order to ensure smoothly completing for iterative calculation, for installing individually, a little current wind turbine substitutes into present situation network, causes to iterate to calculate nothing
Method is convergent, we just select the free wind turbine of software, wait after the completion of resolving, then with current wind turbine comparative analysis.Pass through analysis
The wind turbine that calculation result compares the point it is known that part is installed with current fan parameter is consistent with the current wind turbine in mine, also a
The wind turbine do not installed a little and the current wind turbine in mine are inconsistent.Next we will carry out detailed analysis to inconsistent installation point.
The not existing Fan Equipment in region and the software iterative calculation selection fan parameter comparison of 6 meters of bottoms of table
The 620 original wind turbine models of stage casing B80 lines：K40-8-No17, rated power：30kW, air quantity range：21.1-
45.9m3/ s, wind pressure range：123-568Pa.This system network calculation result shows, 620 stage casing B80 line wind turbine models：K40-
4-No12, rated power：37kW, air quantity range：14.7-32.1m3/ s, wind pressure range：242-1118Pa.And 620 stage casing B80
Traditional thread binding machine point required airflow is 25m3/ s overcomes resistance 800Pa or so.By comparison, the air quantity of original wind turbine is met the requirements, but wind
Pressure can not meet to be required herein.Field measurement, blower pressure is larger herein, and design requirement is not achieved in air quantity, inefficient, distinguished and admirable
It cannot be according to the route flow forward of planning.
Why the traditional thread binding machine points of 620 stage casing B80 have so big resistance, with reference to its main cause of field assay, wind herein
Stream is diverted by our department's subincline, and downward 600 stage casing, 575 stage casings, 550 stage casings, 535 stage casings, 500 levels amount to 6
Platform machine, general assembly acc power 396kW are being operated, and the negative pressure that causes to install herein is larger.
The 660 original wind turbine models of stage casing B98 lines：K40-8-No22, rated power：110kW, air quantity range：45.7-
99.4m3/ s, wind pressure range：206-952Pa.This system network calculation result shows, 660 stage casing B98 line wind turbine models：K40-
8-No21, rated power：90kW, air quantity range：39.7-86.5m3/ s, wind pressure range：188-867Pa.And 660 stage casing B98 lines
Installation point required airflow is 60m3/ s overcomes resistance 180Pa or so.By comparison, wind pressure, the air quantity of original wind turbine are fully able to completely
Foot production requirement herein.According to producing needs in ore deposit, thus it is possible to vary angle of fan leaves makees appropriate adjust using variable-frequency governor
It is whole, production requirement can be met but also save electric energy, reduce ventilation expense.
By each tunnel allocation of the amount of air and pressure loss situation and field measurement data comparison, calculation result can be relatively accurate
Reflect original ventilating system there are the problem of.
No. 105 branch's (600 stage casing trackless ramp entrance) calculation results show 29.23m3/ s, with field measurement data
29.97m3/ s is compared, and calculation result and actual measurement air quantity are unanimous on the whole.
No. 42 branch's (640 not adopting quasi- main line entrance in rice bottom) calculation results show 24.99m3/ s, with field measurement data
11.84m3/ s is compared, and calculation result and actual measurement air quantity gap are larger, the main reason is that onsite application K40-8-No17 wind turbines,
The wind turbine cannot overcome the negative pressure of 800Pa or so herein completely.
No. 44 branches (rice bottom not 640 air inlet) calculation result shows 24.66m3/ s, with field measurement data 25m3/ s pairs
Than calculation result coincide substantially with actual measurement air quantity.
No. 92 branch's (690 the river bank transportation roadway) calculation results show 73.9m3/s(85.9m3/ s subtracts meter bottom not in 600
Section double track transport lane 12m3/ s), with field measurement data 74.75m3/ s is compared, and calculation result and actual measurement air quantity are basically identical.
Since branch heading is excessive, no longer whole comparative analyses herein can refer to " Dahongshan Copper Mine rice bottom not zonal ventilation
System description network calculation result ", not " rice bottom zonal ventilation network " and associated field measured data compare and analyze.
Due to structure ventilating system threedimensional model and basic data preparation be difficult it is accurate completely the same with live reality,
Therefore, calculation result there is element branches roadway and fan parameter and field measurement to have some deviations be also normal phenomenon.
7th, there are the problem of
(1) rice bottom not 640 air inlets installation point (No. 2 machine stations), the wind turbine K40-8-No17 of onsite application, which cannot
Overcome the negative pressure of 800Pa or so herein completely, cause herein fan delivery design requirement is not achieved, it is inefficient, it is distinguished and admirable cannot
According to the route flow forward of planning.
(2) the rice bottom not special air return lane in 720 stage casings installation point (No. 6 machine stations), the wind turbine K40-8-No22 of onsite application,
Through running at full capacity, operating status shows slightly forced, reach design return air amount it is slightly inadequate, adjustment was done at scene, blade angle
32 degree are adjusted to, surge phenomenon occurs in fan operation.
(3) there is not Air escape branch in 670 VI main line entrance of 600-720 ramps and 670 VI main line return air ends at rice bottom, cause
Excessively fresh is distinguished and admirable to be directly entered air return system.
(4) 680 stage casing air return lanes do not have inverted ventilation phenomenon at rice bottom, and main cause is the special air return lane installation point (6 in 720 stage casings
Number machine station) wind turbine, it is impossible to lower stage casing, horizontal air quantity are completely consumed, cause air quantity redundancy.
8th, suggestion and measure
Analyzed according to calculation result, for rice bottom not the current ventilating system in region there are the problem of, propose following to suggest arranging
It applies, it would be desirable to provide help to the safety in production in mine.
(1) rice bottom not 640 air inlets installation point (No. 2 machine stations), it is proposed that original wind turbine " K40-8-No17 " is changed to type
The wind turbine of number " K40-4-No12 " rated power 37kW, to improve the problem of not smooth of divulging information herein, the air quantity of the model wind turbine
Range：14.7-32.1m3/ s, wind pressure range：242-1118Pa.
(2) the rice bottom not special air return lane in 720 stage casings installation point (No. 6 machine stations), it is proposed that by original wind turbine " K40-8-No22 "
The wind turbine of model " K40-8-No24 " rated power 160kW is changed to, it is excessive to improve wind turbine load herein, operation surge,
The problem of efficiency is low, the air quantity range of the model wind turbine：59.3-129.1m3/ s, wind pressure range：245-1133Pa.It is appropriate simultaneously
The return air amount of 660 stage casing B98 lines (No. 4 machine stations) wind turbine is reduced, to solve the problems, such as the inverted ventilation of 680 stage casing air return lanes.
(3) for rice bottom, there is not Air escape branch problem in 670 VI main line entrance of 600-720 ramps, belongs to weight again herein
The transport connection road wanted, can not install air regulator and be adjusted.It is recommended that installing air curtain or drenching installation herein, increase ventilation resistance,
Reduced air quantity.
(4) when network resolves, to rice bottom, not newly-increased ramp has carried out constant current control, but is nothing herein according to live reality
Method installation is auxiliary to fan what is be adjusted, it is proposed that is adjusted using 600 stage casing B84 line wind turbines, during use, according to live practical
Wind turbine is adjusted.
(5) when carrying out network examination resolving according to field data, it is found that 600 stage casing B92 lines increase newly and pressed at air -return duct installation point
Power is too small, in formal resolved, considers herein by Blower-free.Calculation result is shown, still whole network can be made to reach flat
Weighing apparatus.It is recommended that wind turbine herein wouldn't be removed, wind turbine is allowed to shut down, verify the ventilation condition of whole system and then according to reality
Border appropriately adjusts.
(6) with safeguarding, no or temporary no tunnel will carry out permanent closed or interim in time for strengthening system management
Closed, the main roadway and return air roadway of entering the wind should be safeguarded often, keep cleaning and distinguished and admirable unimpeded, forbid stacking material and facility,
Fan Equipment wants running check, periodically carries out maintenance.
By the rice bottom not practical ventilation situation of region underground site, compared and analyzed with reference to network calculation result, it can be with
Find out that the mine ventilation system designs reasonable, indices meet relevant national standard requirement, and volume of air supply, which is more than, needs wind
Amount, ventilation effect is relatively preferable, and wind turbine operating is stablized relatively, disclosure satisfy that the needs of Mine Safety in Production substantially.It if can be to upper
It states indivedual positions of problems and installation point is handled, it will obtain more ideal ventilation effect.
9th, ventilating system optimizes：
According to this system there are the problem of and suggestion and measure, network presence model is adjusted it is perfect, modification it is relevant
Network resolves basic data, and the special air return lane installation point wind turbine in 720 stage casings is changed to model " K40-8-No24 " rated power
The wind turbine of 160kW, the traditional thread binding machine point wind turbines of 660 stage casing B98 are changed to the wind turbine of model " K40-8-No20 " rated power 75kW,
The traditional thread binding machine point wind turbines of 620 stage casing B80 are changed to the wind turbine of model " K40-4-No12 " rated power 37kW.
For the inverted ventilation problem of 680 stage casing air return lanes, multi-scheme is carried out by using 3DVent softwares and resolves verification repeatedly,
If the special air return lane installation point in 720 stage casings uses " K40-8-No24 " wind turbine, return air amount herein is increased, while reduce in 660
The return air amount of section B98 lines (No. 4 machine stations) wind turbine, can solve the problems, such as inverted ventilation herein.
By adjusting later, re-start network according to said program and resolve, calculation result, which is shown, can reach entire net
The pressure balance of network, and allocation of the amount of air is more suitable for current production status, while can improve the special air return lane in 720 stage casings
The load of installation point wind turbine, increases return air amount.Zonal ventilation system optimization network does not resolve knot at specific Dahongshan Copper Mine rice bottom
Fruit is as follows：
Tunnel item number=139；Node number=103；Computational accuracy=0.001；Fixed air quantity item number=10.
Installation lane item number=6；Natural ventilation pressure number=0；Total air inlet item number=3；Always go out air way item number=3.
Each installation point fan operation situation
Total installed capacity number of units：6, total shaft power=107.43kW, total power of motor=135.71kW, general assembly acc power=
343.00kW。
Air regulator regulating calculation result
Booster control result of calculation
Auxiliary fan sum is installed：4, total shaft power=218.04kW, total power of motor=275.42kW, general assembly acc power=
425.00kW。
Ventilating system overall performane parameter --- network iterates to calculate result
Total intake=136.99m3/ s, total wind pressure=670.52Pa, total windage=0.03573Ns2/m8, equivalent orifice=
6.3m2。
Each tunnel allocation of the amount of air and pressure loss situation
Above-mentioned, although the foregoing specific embodiments of the present invention is described with reference to the accompanying drawings, not protects model to the present invention
The limitation enclosed, those skilled in the art should understand that, based on the technical solutions of the present invention, those skilled in the art are not
The various modifications or changes that needing to pay performing creative labour can make are still fallen within the protection scope of the present invention.
Claims (1)
1. a kind of mine ventilation system construction method based on DIMINE softwares, which is characterized in that described soft based on DIMINE
The mine ventilation system construction method of part includes：
Step 1: on the basis of the existing function of DIMINE softwares, according to the original three-dimensional roadway model in mine, ventage is built
System threedimensional model, and improve software according to project team member's three-dimensional software application experience and Design of Ventilation System requirement, assistance and show
It is functional, and form 3DVent softwares and build ventilating system threedimensional model automatically, complete the ventilation network threedimensional model structure in mine
It builds；
Step 2: for the ventilating system threedimensional model of the DIMINE file formats built, it is converted into 3DVent softwares
The file format that can be compatible with；
Step 3: after completing software and building ventilating system threedimensional model function automatically, using software, and according to ventilation network
Solving technique requirement with reference to mine actual conditions, completes the Ventilation Network Solution work in mine；
Step 4: according to Ventilation Network Solution as a result, carrying out Design of Ventilation System and the scheme optimization Software Realization Technique of transformation
Research using multi-scheme data sharing technology, completes the Design of Ventilation System in mine and works with the scheme optimization of transformation；
Step 5: according to Ventilation Network Solution as a result, carrying out Ventilation Network Solution result three-dimensional visualization and distinguished and admirable animation simulation
Software Realization Technique is studied, and the true three-dimensional visualization of the Ventilation Network Solution result in mine and distinguished and admirable animation are realized using software
Emulation；
When building ventilating system threedimensional model, only need to according to the well lane engineering model of the original DIMINE file formats in each mine,
Increase center line using " 2 ratio lines " order in DIMINE digital mine software line editting functions, represent logical with center line
Wind path line, while according to firsthand information, the well lane engineering as ventilation routes newly opened supplement perfect；Ventilating system
Model file format conversion is * .3ds formatted files；Ventilation Network Solution uses, 3DVent softwares, and idiographic flow is：1. it builds
Ventilating system threedimensional model；2. initiation parameter；3. create airway；4. input basic data；5. check ventilation network；⑥
It irises wipe mesh and just intends air quantity；7. Fan Selection；8. it iterates to calculate；9. air quantity is adjusted, air regulator and auxiliary fan are calculated；10. export network
Calculation result；
Three-dimensional visualization and distinguished and admirable animation simulation are carried out using 3DVent softwares.
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| CN104775841B (en) * | 2015-03-02 | 2017-01-04 | 陕西陕煤黄陵矿业有限公司 | Ventilation network safety partition method for mine wind points |
| CN104948215B (en) * | 2015-05-19 | 2016-05-25 | 卢新明 | A kind of excellent tuning control method of associating of mine ventilation system |
| CN105718631A (en) * | 2016-01-14 | 2016-06-29 | 江苏立典机床科技有限公司 | Numerical value simulation-based ventilation duct smoke purification system |
| 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 |
| CN109098748B (en) * | 2018-10-19 | 2024-04-05 | 中国恩菲工程技术有限公司 | Mine on-demand ventilation device, system and method, medium and electronic equipment |
| CN111209617A (en) * | 2019-12-26 | 2020-05-29 | 中交第一航务工程局有限公司 | Port ventilation system forward design method based on BIM technology |
| CN113468647B (en) * | 2021-07-22 | 2023-11-17 | 河南发恩德矿业有限公司 | Old mine ventilation system transformation method |
| CN115619061B (en) * | 2022-11-01 | 2023-04-28 | 山东蓝光软件有限公司 | Cooperative regulation and control method for wind flow and people flow in mine catastrophe period |
| 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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