CN109113777A - More returnairshaft mine ventilation system design methods - Google Patents
More returnairshaft mine ventilation system design methods Download PDFInfo
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- CN109113777A CN109113777A CN201810932143.4A CN201810932143A CN109113777A CN 109113777 A CN109113777 A CN 109113777A CN 201810932143 A CN201810932143 A CN 201810932143A CN 109113777 A CN109113777 A CN 109113777A
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- returnairshaft
- ventilation system
- wind net
- mine ventilation
- air quantity
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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
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- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Ventilation (AREA)
Abstract
More returnairshaft mine ventilation system design methods, comprising the following steps: (1) mine ventilation system is divided into external wind net and returnairshaft two parts；(2) all returnairshaft short circuits of mine ventilation system, a characteristic value of fetching within the scope of the afforded air quantity of each returnairshaft are enabled；(3) wind net ventilation parameter outside when all returnairshaft short circuits of calculating in corresponding eigenvalue air quantity；(4) each returnairshaft short-circuit condition lower outer portion wind net characteristic curve equation is found out by the feature air quantity of each returnairshaft and external wind net ventilation parameter；(5) nesting is minimal to the technical parameter and economic parameters of returnairshaft and external wind net between maximum section between being minimal to maximum quantity of wind when successively iterative calculation returnairshaft is physical length；(6) best allocation of the amount of air scheme, output analysis result and relation curve are found out by the calculating of array nesting automatically.Analytical calculation of the present invention is scientific and reasonable, can ensure that more returnairshaft mine ventilation system ventilation costs and running cost are minimum.
Description
Technical field
The present invention relates to mine ventilation fields, and in particular to a kind of more returnairshaft mine ventilation system design methods.
Background technique
Mine ventilation system is one of important production system in the big system of mining production six, and energy consumption accounts for mine total energy consumption
One third or so, reduce mine ventilation system energy consumption and weight all had for enterprise's cost efficiency and national energy conservation and emission reduction strategy
Big meaning.
A plurality of returnairshaft shared overall ventilation of mines in more returnairshaft mine ventilation systems uses experience both at home and abroad at present
Total blast volume is assigned to each returnairshaft, determines pit shaft optimum section further according to each returnairshaft air quantity, propose economic wind speed,
The concepts such as economic section, such mode, that is, dependence experience also not Sciences Economics, it is unbalance to often result in allocation of the amount of air, causes ventage
System investment and operation cost increase.
Summary of the invention
The technical problem to be solved by the present invention is to overcome drawbacks described above of the existing technology, provide a kind of analysis meter
It is scientific and reasonable, it can ensure that more returnairshaft mine ventilation system ventilation costs and the most much lower returnairshaft mine ventilation of running cost
Design method.
The technical solution adopted by the present invention to solve the technical problems is: more returnairshaft mine ventilation system design methods,
The following steps are included:
(1) mine ventilation system is divided into external wind net and returnairshaft two parts, it is logical that two parts draft effect is superposed to mine
Wind system effect；
(2) enable all returnairshafts of mine ventilation system short-circuit (length zero, both without resistance), it is afforded in each returnairshaft
Air quantity within the scope of fetch characteristic value；
(3) wind net ventilation parameter outside when all returnairshaft short circuits of calculating in corresponding eigenvalue air quantity；
(4) each returnairshaft short-circuit condition lower outer portion is found out by the feature air quantity of each returnairshaft and external wind net ventilation parameter
Wind net characteristic curve equation, and use returnairshaft short-circuit condition lower outer portion wind net characteristic equation as external wind net numerical model；
(5) loop nesting is minimal to maximum section between being minimal to maximum quantity of wind when successively iterative calculation returnairshaft is physical length
Between returnairshaft and external wind net technical parameter and economic parameters；
(6) best allocation of the amount of air scheme, output analysis result and relation curve are found out by the calculating of array nesting automatically.
Further, in step (2), a characteristic value of being fetched in a manner of equispaced.
Further, in step (3), the external wind net ventilation parameter includes air quantity, resistance etc..
Further, in step (3), outside when network resolving all returnairshaft short circuits of calculating in corresponding eigenvalue air quantity
Portion's wind net ventilation parameter, network, which resolves, belongs to mature technology.
Further, in step (4), go out to find out each returnairshaft short-circuit condition lower outer portion by data fitting or curve matching
Wind net characteristic curve equation, data fitting or curve matching category mature technology.
Further, in step (5), the technical parameter includes basal area, air quantity, resistance etc.；The economic parameters includes
Capital construction cost, equipment acquisition cost and running cost etc..
Beneficial effects of the present invention: overcoming prior art defect, provided a kind of scientific and reasonable analysis method, it is ensured that more
Returnairshaft ventilating system total blast volume is reasonably allocated to each returnairshaft and determines each returnairshaft optimal ventilation parameter, it is ensured that more times
Ventilating shaft ventilating system ventilation cost and running cost are minimum.
Detailed description of the invention
Fig. 1 is iterative calculation flow chart.
Specific embodiment
The invention will be further described with reference to embodiments.
Embodiment
It is excellent to apply to the present embodiment two wing opposite angle type Design of Ventilation System for more returnairshaft mine ventilation system design methods
Change, comprising the following steps:
(1) the external wind net two being divided into ventilating system other than returnairshaft (southern return air vertical shaft, northern return air inclined shaft) and returnairshaft
Part, wherein external wind net includes airway and distinguished and admirable control facility；
(2) 220 m3/s of overall ventilation of mines, enabling southern return air vertical shaft, northern return air inclined shaft length is zero, southern return air vertical shaft and northern return air
It is 150 m3/s that inclined shaft minimum air quantity, which is 70 m3/s, maximum quantity of wind, and equispaced takes 6 feature air quantity, and specific data are shown in
1 air quantity data of table；
(3) southern return air vertical shaft, northern return air inclined shaft length are established and resolves model for nought state lower network, is calculated separately in 6 features
Ventilation parameter of the outside wind net under different distinguished and admirable control facilities, specific data are shown in Table 1 outer net drag data when value；
1 characteristic value of table and external wind network parameters
(4) each returnairshaft short-circuit condition lower outer portion is found out by the feature air quantity of each returnairshaft and external wind net ventilation parameter
Wind net characteristic curve equation, and use returnairshaft short-circuit condition lower outer portion wind net characteristic equation as external wind net numerical model；
Wind net characteristic curve equation outside southern return air vertical shaft: H=- 0.00021Q3+0.09015Q2- is obtained by curve-fitting method
7.706Q+2777, northern return air inclined shaft outside wind net characteristic curve equation: H=0.00098Q3-0.2528Q2+35.66Q+766.6；
H is external wind net resistance, unit Pa, Q returnairshaft air quantity, unit m3/s in formula；
(5) loop nesting is minimal to maximum section between being minimal to maximum quantity of wind when successively iterative calculation returnairshaft is physical length
Between returnairshaft and external wind net technical parameter and economic parameters, as shown in Figure 1；
Minimum, the maximum section of returnairshaft is determined according to construction equipment size, adjoining rock stability situation, for well-known technique in the industry；This reality
Applying the Central-South return air vertical shaft minimum of example and maximum section is respectively 12m2、16m2, the northern oblique 12m of return air2、24m2；
(6) best allocation of the amount of air scheme, output analysis result and relation curve are found out by the calculating of array nesting automatically.
Show that the results are shown in Table 2 for the present embodiment analysis.
Table 2 analyzes result table
Claims (10)
- The mine ventilation system design method of returnairshaft more than 1., which comprises the following steps:(1) mine ventilation system is divided into external wind net and returnairshaft two parts, it is logical that two parts draft effect is superposed to mine Wind system effect；(2) all returnairshaft short circuits of mine ventilation system are enabled, fetch a spy within the scope of the afforded air quantity of each returnairshaft Value indicative；(3) wind net ventilation parameter outside when all returnairshaft short circuits of calculating in corresponding eigenvalue air quantity；(4) each returnairshaft short-circuit condition lower outer portion is found out by the feature air quantity of each returnairshaft and external wind net ventilation parameter Wind net characteristic curve equation, and use returnairshaft short-circuit condition lower outer portion wind net characteristic equation as external wind net numerical model；(5) loop nesting is minimal to maximum section between being minimal to maximum quantity of wind when successively iterative calculation returnairshaft is physical length Between returnairshaft and external wind net technical parameter and economic parameters；(6) best allocation of the amount of air scheme, output analysis result and relation curve are found out by the calculating of array nesting automatically.
- 2. more returnairshaft mine ventilation system design methods according to claim 1, which is characterized in that in step (2), with The mode of equispaced is fetched characteristic value.
- 3. more returnairshaft mine ventilation system design methods according to claim 1 or 2, which is characterized in that step (3) In, the external wind net ventilation parameter includes air quantity, resistance.
- 4. more returnairshaft mine ventilation system design methods according to claim 1 or 2, which is characterized in that step (3) In, by network resolve calculate all returnairshaft short circuits when in corresponding eigenvalue air quantity outside wind net ventilation parameter.
- 5. more returnairshaft mine ventilation system design methods according to claim 3, which is characterized in that in step (3), lead to Cross network resolve calculate all returnairshaft short circuits when in corresponding eigenvalue air quantity outside wind net ventilation parameter.
- 6. more returnairshaft mine ventilation system design methods according to claim 1 or 2, which is characterized in that step (4) In, go out to find out each returnairshaft short-circuit condition lower outer portion wind net characteristic curve equation by data fitting or curve matching.
- 7. more returnairshaft mine ventilation system design methods according to claim 5, which is characterized in that in step (4), lead to It crosses data fitting or curve matching goes out to find out each returnairshaft short-circuit condition lower outer portion wind net characteristic curve equation.
- 8. more returnairshaft mine ventilation system design methods according to claim 1 or 2, which is characterized in that step (5) In, the technical parameter includes basal area, air quantity, resistance；The economic parameters includes capital construction cost, equipment acquisition cost and fortune Working cost.
- 9. more returnairshaft mine ventilation system design methods according to claim 3, which is characterized in that in step (5), institute Stating technical parameter includes basal area, air quantity, resistance；The economic parameters includes capital construction cost, equipment acquisition cost and operating charges With.
- 10. more returnairshaft mine ventilation system design methods according to claim 5, which is characterized in that in step (5), The technical parameter includes basal area, air quantity, resistance；The economic parameters includes capital construction cost, equipment acquisition cost and operation Expense.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810932143.4A CN109113777B (en) | 2018-08-16 | 2018-08-16 | Design method of mine ventilation system with multiple air return wells |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810932143.4A CN109113777B (en) | 2018-08-16 | 2018-08-16 | Design method of mine ventilation system with multiple air return wells |
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| CN109113777A true CN109113777A (en) | 2019-01-01 |
| CN109113777B CN109113777B (en) | 2020-03-27 |
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Citations (5)
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|---|---|---|---|---|
| SU1740687A1 (en) * | 1990-01-08 | 1992-06-15 | Институт Горного Дела Ан Казсср | Method of air treatment by recirculation |
| 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 |
| CN104268126A (en) * | 2014-10-14 | 2015-01-07 | 卢新明 | Multi-modal automatic recognition method for air duct parameters of mine ventilation system |
| CN104564120A (en) * | 2014-11-11 | 2015-04-29 | 中国矿业大学 | Operation state control decision making method of mine ventilation system |
| CN107016222A (en) * | 2017-06-02 | 2017-08-04 | 山东科技大学 | Deep level mine natural ventilation pressure emphasis influence area decision method |
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2018
- 2018-08-16 CN CN201810932143.4A patent/CN109113777B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1740687A1 (en) * | 1990-01-08 | 1992-06-15 | Институт Горного Дела Ан Казсср | Method of air treatment by recirculation |
| 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 |
| CN104268126A (en) * | 2014-10-14 | 2015-01-07 | 卢新明 | Multi-modal automatic recognition method for air duct parameters of mine ventilation system |
| CN104564120A (en) * | 2014-11-11 | 2015-04-29 | 中国矿业大学 | Operation state control decision making method of mine ventilation system |
| CN107016222A (en) * | 2017-06-02 | 2017-08-04 | 山东科技大学 | Deep level mine natural ventilation pressure emphasis influence area decision method |
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| 彭云 等: "矿井通风系统降阻优化及综合评价①", 《矿业工程研究》 * |
| 彭云 等: "角联通风网络风阻特性", 《辽宁工程技术大学学报（自然科学版）》 * |
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| 高新等: "急倾斜中厚钾盐矿体的采矿方法研究", 《化工矿物与加工》 * |
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