CN113468647A - Old mine ventilation system transformation method - Google Patents
Old mine ventilation system transformation method Download PDFInfo
- Publication number
- CN113468647A CN113468647A CN202110827917.9A CN202110827917A CN113468647A CN 113468647 A CN113468647 A CN 113468647A CN 202110827917 A CN202110827917 A CN 202110827917A CN 113468647 A CN113468647 A CN 113468647A
- Authority
- CN
- China
- Prior art keywords
- air
- ventilation
- simulation
- mine
- roadway
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000009423 ventilation Methods 0.000 title claims abstract description 119
- 238000011426 transformation method Methods 0.000 title description 4
- 238000004088 simulation Methods 0.000 claims abstract description 62
- 238000005457 optimization Methods 0.000 claims abstract description 37
- 230000000007 visual effect Effects 0.000 claims abstract description 24
- 230000009466 transformation Effects 0.000 claims abstract description 18
- 238000004364 calculation method Methods 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 13
- 238000005057 refrigeration Methods 0.000 claims abstract description 13
- 230000001131 transforming effect Effects 0.000 claims abstract description 11
- 230000003247 decreasing effect Effects 0.000 claims abstract description 7
- 229910001220 stainless steel Inorganic materials 0.000 claims description 37
- 239000010935 stainless steel Substances 0.000 claims description 37
- 239000011449 brick Substances 0.000 claims description 29
- 238000005452 bending Methods 0.000 claims description 8
- 239000002699 waste material Substances 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 5
- 230000004888 barrier function Effects 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 238000009420 retrofitting Methods 0.000 claims 1
- 238000005065 mining Methods 0.000 abstract description 11
- 238000007789 sealing Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004630 mental health Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000009323 psychological health Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 238000002076 thermal analysis method Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/13—Architectural design, e.g. computer-aided architectural design [CAAD] related to design of buildings, bridges, landscapes, production plants or roads
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
- G06F2119/02—Reliability analysis or reliability optimisation; Failure analysis, e.g. worst case scenario performance, failure mode and effects analysis [FMEA]
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Theoretical Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Evolutionary Computation (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Computational Mathematics (AREA)
- Civil Engineering (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Pure & Applied Mathematics (AREA)
- Architecture (AREA)
- Ventilation (AREA)
Abstract
A method for modifying an old mine ventilation system comprises the following steps: establishing a simulation ventilation network according to the existing mine roadway space data and the related ventilation system data by means of modern three-dimensional ventilation simulation software; wind current and heat calculation are carried out on the simulation ventilation network through three-dimensional ventilation simulation software, and a three-dimensional visual simulation result of the actual operation condition of the existing mine ventilation network is obtained; analyzing a three-dimensional visual simulation result, finding out the existing operation tunnels with small wind flow and wind pressure or without wind flow or with high temperature, and pertinently making a plurality of optimization schemes for increasing or decreasing ventilation tunnels and fans or increasing refrigeration parameters; and carrying out wind current and thermal simulation calculation on the plurality of optimization schemes and comparing to obtain an optimization transformation scheme, and transforming the ventilation system of the existing mine according to the optimization transformation scheme, thereby effectively improving the air quality and the operation environment of the underground roadway mining operation surface.
Description
Technical Field
The invention relates to the technical field of ventilation systems of mine enterprises, in particular to a method for improving an old mine ventilation system.
Background
With the continuous development of mineral resources, the shallow deposit and the deposit reserve with relatively simple mining technical conditions in China are continuously consumed, and most mines are forced to be exploited to deep or complex deposits; along with the exploitation of deep mineral deposits, the problems brought by the deep mineral deposits are mainly and intensively reflected in that ventilation systems are more and more complex, the air quality of underground roadway exploitation operation surfaces is poorer, the temperature is higher, manual convection current and thermal analysis are used for resolving and proposing a transformation scheme, and the solution is correspondingly more and more difficult, and even becomes an unfinishable work; the poor air quality and the high temperature of the underground roadway mining operation surface not only affect the working efficiency, but also threaten the life safety and physical and psychological health of underground operation personnel; therefore, how to transform the ventilation system of the old mine and improve the air quality and the temperature of the underground roadway mining operation surface becomes a problem to be solved urgently.
Disclosure of Invention
In order to overcome the defects in the background art, the invention discloses a method for modifying an old mine ventilation system, which comprises the following steps: establishing a simulation ventilation network according to the existing mine roadway space data and the related ventilation system data by means of modern three-dimensional ventilation simulation software; performing wind current and heat calculation on the established simulation ventilation network through three-dimensional ventilation simulation software to obtain a three-dimensional visual simulation result of the actual operation condition of the existing mine ventilation network; analyzing the three-dimensional visual simulation result, and finding out the existing operation tunnel with small wind flow and wind pressure or without wind flow or with high temperature; aiming at a roadway with small wind flow and wind pressure or a roadway without wind flow or a roadway with high temperature, a plurality of optimization schemes for increasing or decreasing ventilation roadways and fans or increasing refrigeration parameters are made for the simulated ventilation network; carrying out wind current and thermal simulation calculation again on the simulation ventilation networks of the optimization schemes to obtain a three-dimensional visual simulation result of the operation condition of the mine ventilation network of the optimization scheme; and comparing three-dimensional visual simulation results of the operation of the mine ventilation network with a plurality of optimization schemes to obtain an optimization transformation scheme, and transforming the ventilation system of the existing mine according to the optimization transformation scheme, thereby effectively improving the air quality and the operation environment of the underground roadway mining operation surface.
In order to realize the purpose, the invention adopts the following technical scheme: an old mine ventilation system transformation method comprises the following steps:
s1, constructing a three-dimensional model: constructing a three-dimensional model of the mine roadway in AutoCAD according to the existing spatial data of the mine roadway;
s2, constructing a simulation ventilation network; storing a central line of a three-dimensional model of a mine roadway constructed in AutoCAD as a DXF format file, importing the file into three-dimensional ventilation simulation software Ventsim, and establishing a simulation ventilation network;
s3, simulating ventilation network assignment: setting air flow type, friction resistance coefficient, support form, end face shape, end face specification, barrier area, positions of a main ventilator and a local ventilator, a fan characteristic curve and related parameters of air pressure, temperature and humidity of an air inlet to a simulated ventilation network according to existing mine roadway ventilation data; the digitization of the ventilation system of the old mine is realized through the three steps, and the digitization of the ventilation system of the old mine is the basis for optimizing and transforming the ventilation system by means of the modern computer technology;
s4, current situation simulation calculation: performing wind current and thermal simulation calculation on the assigned simulation ventilation network to obtain a three-dimensional visual simulation result of the actual operation condition of the existing mine ventilation network; the three-dimensional visual simulation result can visually and intuitively observe the actual operation condition of the existing ventilation network, and meanwhile, by matching with data query, the structure, the ventilation technical condition and the existing problems of the existing ventilation system can be known in detail, so that a basic reference basis is provided for seeking an optimization scheme;
s5, optimizing the simulation ventilation network: finding out an operation tunnel with low wind flow and wind pressure or without wind flow or an operation tunnel with high temperature according to the prompt of a three-dimensional visual simulation result of the actual operation condition of the existing mine ventilation network; aiming at an operation roadway with small wind flow and wind pressure or without wind flow or an operation roadway with high temperature, a plurality of optimization schemes for increasing or decreasing ventilation roadways, or increasing local fans, refrigeration parameters, or ventilation structures or obstacle areas are made for the simulation ventilation network; carrying out wind current and thermal simulation calculation again on the simulation ventilation networks of the optimization schemes to obtain a three-dimensional visual simulation result of the operation condition of the mine ventilation network of the optimization scheme; comparing three-dimensional visual simulation results of the operation conditions of the mine ventilation networks of the plurality of optimization schemes to obtain an optimization transformation scheme; the ventilation laneway is increased or decreased, the fan is used for optimizing the air return system, a new air return laneway can be added, part of the air return laneway can be closed, and a new ventilation patio can be constructed and added when necessary; the local fan is added to improve the air supply rate of a part of underground roadway mining operation surface; increasing refrigeration parameters for improving the environmental temperature of the underground roadway mining operation surface; in addition, when seeking an optimization scheme, not only the problem that whether the optimization scheme can finally solve the operation roadway with small wind flow and wind pressure or without wind flow or with high temperature is considered, but also the problems of the implementation project amount, the project period, the project cost, the long-term operation reliability and the like of the optimization scheme are also considered, so that the optimization scheme is an optimal solution obtained by comprehensively considering and comprehensively balancing various factors with the aim of solving the problems as guidance.
Furthermore, the increased refrigeration parameters are realized by transforming the air conveying pipe barrel passing through a lower-temperature roadway into a stainless steel air conveying pipe barrel in the actual ventilation network transformation; the method is characterized in that a refrigerating unit is not added in a ventilation system, but the temperature of the fresh air flow which is conveyed to the mining operation surface of the underground roadway is reduced by utilizing the characteristics of low and constant temperature of part of mine roadways, and the stainless steel air conveying pipe barrel is adopted to reduce the temperature of the fresh air flow in the roadway section with low temperature by utilizing the advantage of good heat conductivity of stainless steel materials.
Preferably, the increased refrigeration parameters are realized by transforming the air delivery pipe barrel passing through the waste roadway with a lower temperature into an air reservoir in the actual ventilation network transformation; through transforming the lower abandonment tunnel of temperature into the wind storehouse and realizing, set up the sealed brick wall at the lower abandonment tunnel both ends of temperature, make the lower abandonment tunnel of temperature form the very big enclosure space of volume, carry the fresh air current to underworkings exploitation operation face through the wind storehouse and dwell for a longer time, consequently fresh air current's cooling effect is better.
As for the selection of the stainless steel air delivery pipe barrel or the air warehouse to realize the cooling of the fresh air flow, the selection needs to be determined according to the specific network structure of the existing ventilation system.
Furthermore, the stainless steel air delivery pipe barrel is formed by bending and welding a stainless steel strip along the length direction, and as the strength at the welding seam is lower, the welded stainless steel air delivery pipe barrel is not circular and is actually similar to a drop shape, in order to improve the shape of the welded stainless steel air delivery pipe barrel and prevent the welding seam from cracking, a plurality of pipe hoops are fixedly arranged on the outer wall of the stainless steel air delivery pipe barrel, the stainless steel air delivery pipe barrel keeps circular through the pipe hoops, adjacent stainless steel air delivery pipe barrels and the stainless steel air delivery pipe barrel and the original air delivery pipe barrel are fixedly connected through flanges, and sealing gaskets are arranged at the joints of the flanges to prevent air leakage; the stainless steel air delivery pipe barrels are connected at the bending transition positions by adopting stainless steel corrugated pipes, and the characteristics that the stainless steel corrugated pipes are easy to bend and deform and adjustable in length are utilized, so that the bending degree of the stainless steel corrugated pipes is adjusted according to the bending of the actual situation in a construction site, and the error of the connection length of the two stainless steel air delivery pipe barrels is compensated; the stainless steel air delivery pipe barrel is high in cost, long in service life, free of maintenance and free of electric energy consumption when fresh air flow is cooled, so that long-term operation cost is extremely low, and comprehensive consideration of the cost can still be accepted.
Furthermore, the air warehouse is a closed space formed by arranging an air warehouse air inlet end closed brick wall and an air warehouse air outlet end closed brick wall at two ends of the original waste roadway with lower temperature respectively; an air inlet pipe barrel is fixedly arranged on the wall of the air inlet end closed brick of the air warehouse, an air outlet pipe barrel is fixedly arranged on the wall of the air outlet end closed brick of the air warehouse, and an air warehouse fan is arranged on the air outlet pipe barrel; fresh air flows into the air reservoir through the air inlet pipe barrel and is output through the air outlet pipe barrel under the driving of the fan of the air reservoir, and the fresh air flow can be fully cooled due to the fact that the capacity of the air reservoir is actively large and the fresh air flow stays in the air reservoir for a long time, and therefore the cooling effect of the fresh air flow is better.
Furthermore, emergency air supply pipes are arranged on the closed brick wall at the air inlet end of the air warehouse and the closed brick wall at the air outlet end of the air warehouse; the emergency air supply pipe is provided with a control valve which has two control modes of manual operation and automatic operation, and under the emergency condition that the air inlet pipe barrel stops supplying air, the control valve is opened to communicate the air reservoir with the tunnel outside the air reservoir, so that the problem that the pressure in the air reservoir is reduced when the air inlet pipe barrel stops supplying air, which causes that the air supply on the mining operation surface of the underground tunnel cannot work normally is prevented; meanwhile, because the air reservoir has a large volume, even in an emergency situation that the air inlet pipe barrel stops supplying air, the fresh air stored in the air reservoir can still be used for ensuring that the air is continuously supplied to the underground roadway mining operation surface for a period of time.
The air inlet end closed brick wall and the air outlet end closed brick wall of the air warehouse are provided with pedestrian passing doors; under emergency, underground operators can temporarily hide in the wind reservoir through a pedestrian passing door, and a large amount of fresh air stored in the wind reservoir is used as a temporary shelter; and people can pass through the wind storehouse through a door to serve as an emergency evacuation channel.
Due to the adoption of the technical scheme, the invention has the following beneficial effects: the invention discloses a method for modifying an old mine ventilation system, which comprises the following steps: establishing a simulation ventilation network according to the existing mine roadway space data and the related ventilation system data by means of modern three-dimensional ventilation simulation software; performing wind current and heat calculation on the established simulation ventilation network through three-dimensional ventilation simulation software to obtain a three-dimensional visual simulation result of the actual operation condition of the existing mine ventilation network; analyzing the three-dimensional visual simulation result, and finding out the existing operation tunnel with small wind flow and wind pressure or without wind flow or with high temperature; aiming at a roadway with small wind flow and wind pressure or a roadway without wind flow or a roadway with high temperature, a plurality of optimization schemes for increasing or decreasing ventilation roadways and fans or increasing refrigeration parameters are made for the simulated ventilation network; carrying out wind current and thermal simulation calculation again on the simulation ventilation networks of the optimization schemes to obtain a three-dimensional visual simulation result of the operation condition of the mine ventilation network of the optimization scheme; and comparing three-dimensional visual simulation results of the operation of the mine ventilation network with a plurality of optimization schemes to obtain an optimization transformation scheme, and transforming the ventilation system of the existing mine according to the optimization transformation scheme, thereby effectively improving the air quality and the operation environment of the underground roadway mining operation surface, and ensuring the life safety, physical and mental health and operation efficiency of underground operators.
Drawings
FIG. 1 is a schematic flow chart for obtaining an optimal modification scheme of an old mine ventilation system;
FIG. 2 is a schematic view of a stainless steel air delivery pipe barrel and a connecting structure;
FIG. 3 is a schematic view of the wind reservoir structure;
FIG. 4 is a schematic structural view of a brick wall with a closed air inlet end of an air reservoir;
fig. 5 is a schematic structural view of a brick wall closed at an air outlet end of an air warehouse.
In the figure: 1. a stainless steel air delivery pipe barrel; 1.1, pipe hoop; 2. a stainless steel bellows; 3. a wind reservoir; 3.1, sealing the brick wall at the air inlet end of the air warehouse; 3.1.1, an air inlet pipe barrel; 3.1.2, an emergency air supply pipe; 3.2, sealing the brick wall at the air outlet end of the air warehouse; 3.2.1, an air outlet pipe barrel; 3.2.1.1, wind storehouse fan.
Detailed Description
The present invention will be explained in detail by the following examples, which are disclosed for the purpose of protecting all technical improvements within the scope of the present invention.
An old mine ventilation system transformation method comprises the following steps:
s1, constructing a three-dimensional model: constructing a three-dimensional model of the mine roadway in AutoCAD according to the existing spatial data of the mine roadway;
s2, constructing a simulation ventilation network; storing a central line of a three-dimensional model of a mine roadway constructed in AutoCAD as a DXF format file, importing the file into three-dimensional ventilation simulation software Ventsim, and establishing a simulation ventilation network;
s3, simulating ventilation network assignment: setting air flow type, friction resistance coefficient, support form, end face shape, end face specification, barrier area, positions of a main ventilator and a local ventilator, a fan characteristic curve and related parameters of air pressure, temperature and humidity of an air inlet to a simulated ventilation network according to existing mine roadway ventilation data;
s4, current situation simulation calculation: performing wind current and thermal simulation calculation on the assigned simulation ventilation network to obtain a three-dimensional visual simulation result of the actual operation condition of the existing mine ventilation network;
s5, optimizing the simulation ventilation network: finding out an operation tunnel with low wind flow and wind pressure or without wind flow or an operation tunnel with high temperature according to the prompt of a three-dimensional visual simulation result of the actual operation condition of the existing mine ventilation network; aiming at an operation roadway with small wind flow and wind pressure or without wind flow or an operation roadway with high temperature, a plurality of optimization schemes for increasing or decreasing ventilation roadways, or increasing local fans and refrigeration parameters, or ventilating structures or obstacle areas are made for the simulation ventilation network; carrying out wind current and thermal simulation calculation again on the simulation ventilation networks of the optimization schemes to obtain a three-dimensional visual simulation result of the operation condition of the mine ventilation network of the optimization scheme; comparing three-dimensional visual simulation results of the operation conditions of the mine ventilation networks of the plurality of optimization schemes to obtain an optimization transformation scheme;
the increased refrigeration parameters are realized by transforming the air conveying pipe barrel passing through the lower-temperature roadway into a stainless steel air conveying pipe barrel 1 in the actual ventilation network transformation; the stainless steel air delivery pipe barrel 1 is formed by bending and welding a stainless steel strip along the length direction; a plurality of pipe hoops 1.1 are fixedly arranged on the outer wall of the stainless steel air delivery pipe barrel 1, and the adjacent stainless steel air delivery pipe barrels 1 and the stainless steel air delivery pipe barrel 1 and the original air delivery pipe barrel are fixedly connected through flanges; the bending transition position of the stainless steel air delivery pipe barrel 1 is connected by a stainless steel corrugated pipe 2.
The increased refrigeration parameters are realized by transforming the air delivery pipe barrel passing through the waste tunnel with lower temperature into an air reservoir 3 in the actual ventilation network transformation; the air reservoir 3 is a closed space formed by arranging an air inlet end closed brick wall 3.1 and an air outlet end closed brick wall 3.2 at two ends of an original waste roadway with a lower temperature respectively; an air inlet pipe barrel 3.1.1 is fixedly arranged on the air inlet end closed brick wall 3.1 of the air warehouse, an air outlet pipe barrel 3.2.1 is fixedly arranged on the air outlet end closed brick wall 3.2 of the air warehouse, and an air warehouse fan 3.2.1.1 is arranged on the air outlet pipe barrel 3.2.1; an emergency air supplementing pipe 3.1.2 is arranged on each of the air inlet end closed brick wall 3.1 and the air outlet end closed brick wall 3.2 of the air warehouse; a control valve is arranged on the emergency air supply pipe 3.1.2; the air inlet end closed brick wall 3.1 and the air outlet end closed brick wall 3.2 of the air warehouse are provided with pedestrian passing doors.
For example, the deep development system of the lead-zinc-silver mine of the Luoning moon channel is extended, the temperature of an underground operation roadway can reach as high as 33 ℃, and the humidity reaches 98% RH, meanwhile, the main slope way, the branch slope way, the CM102 and other areas are influenced by tail gas of trackless transportation equipment, the underground operation environment is relatively poor, the physical health of personnel is harmed, and the working efficiency is influenced; through three-dimensional visual simulation and optimization of the operation condition of the existing ventilation network, the following transformation scheme is obtained:
firstly, additionally designing a ventilation raise with the diameter of 2.0m at the middle section of 60-260 m of the ramp;
secondly, a ventilation raise with the diameter of 1.4m is additionally designed from CM102-570m to CM108-710 m;
thirdly, sealing the abandoned roadway by aiming at the slope ramp-300 m \260m \210m, the return airway from CM101-260m to the slope ramp-260 m, the return airway from CM105-210m, PD16-260m to the slope ramp-260 m, and additionally arranging a pedestrian passing door, an air door and the like; namely permanently sealing thirteen positions of a slope ramp-300 m middle section abandoned roadway and additionally arranging a pedestrian passing door; mounting an air door on a return airway from CM101 m to 260m of a ramp way to 260 m; five places of a slope ramp-260 m abandoned roadway modified wind reservoir 3 are provided with pedestrian passing doors; two permanently closed places of the-210 m middle section abandoned roadway of the ramp are provided with pedestrian passing doors; mounting an air door on a PD16-260m main tunnel; twelve permanently closed positions of middle section abandoned roadways of PD16-260m \210m are provided with pedestrian passing doors; the CM105 is provided with 3 air doors;
fourthly, replacing the CM105-260m pedestrian ventilation shaft steel plate platform with a steel mesh platform, designing a pedestrian ventilation shaft with the size of 1.5m multiplied by 1.5m by a main tunnel penetrating the PD16-160m and the CM101-160m, and erecting the steel mesh platform for avoiding the pedestrians in the disaster and returning air;
after the transformation, the temperature of the underground operation roadway is reduced to 26 ℃, the humidity is reduced to 60 percent RH, and the air quality is obviously improved.
The present invention is not described in detail in the prior art.
Claims (7)
1. A method for modifying an old mine ventilation system is characterized by comprising the following steps: the method comprises the following steps:
s1, constructing a three-dimensional model: constructing a three-dimensional model of the mine roadway in AutoCAD according to the existing spatial data of the mine roadway;
s2, constructing a simulation ventilation network; storing a central line of a three-dimensional model of a mine roadway constructed in AutoCAD as a DXF format file, importing the file into three-dimensional ventilation simulation software Ventsim, and establishing a simulation ventilation network;
s3, simulating ventilation network assignment: setting air flow type, friction resistance coefficient, support form, end face shape, end face specification, barrier area, positions of a main ventilator and a local ventilator, a fan characteristic curve and related parameters of air pressure, temperature and humidity of an air inlet to a simulated ventilation network according to existing mine roadway ventilation data;
s4, current situation simulation calculation: performing wind current and thermal simulation calculation on the assigned simulation ventilation network to obtain a three-dimensional visual simulation result of the actual operation condition of the existing mine ventilation network;
s5, optimizing the simulation ventilation network: finding out an operation tunnel with low wind flow and wind pressure or without wind flow or an operation tunnel with high temperature according to the prompt of a three-dimensional visual simulation result of the actual operation condition of the existing mine ventilation network; aiming at an operation roadway with small wind flow and wind pressure or without wind flow or an operation roadway with high temperature, a plurality of optimization schemes for increasing or decreasing ventilation roadways, or increasing local fans, refrigeration parameters, or ventilation structures or obstacle areas are made for the simulation ventilation network; carrying out wind current and thermal simulation calculation again on the simulation ventilation networks of the optimization schemes to obtain a three-dimensional visual simulation result of the operation condition of the mine ventilation network of the optimization scheme; and comparing three-dimensional visual simulation results of the operation conditions of the mine ventilation networks of the plurality of optimization schemes to obtain an optimization transformation scheme.
2. The old mine ventilation system reconstruction method as claimed in claim 1, wherein: the increased refrigeration parameters are realized by transforming the air conveying pipe barrel passing through the lower-temperature roadway into a stainless steel air conveying pipe barrel (1) in the actual ventilation network transformation.
3. The old mine ventilation system reconstruction method as claimed in claim 1, wherein: the increased refrigeration parameters are realized by transforming the air delivery pipe barrel passing through the waste tunnel with lower temperature into an air reservoir (3) in the actual ventilation network transformation.
4. The old mine ventilation system reconstruction method as claimed in claim 2, wherein: the stainless steel air delivery pipe barrel (1) is formed by bending and welding a stainless steel strip along the length direction; a plurality of pipe hoops (1.1) are fixedly arranged on the outer wall of the stainless steel air delivery pipe barrel (1), and adjacent stainless steel air delivery pipe barrels (1) and the stainless steel air delivery pipe barrel (1) and the original air delivery pipe barrel are fixedly connected through flanges; the bending transition position of the stainless steel air delivery pipe barrel (1) is connected by a stainless steel corrugated pipe (2).
5. A method of retrofitting an old mine ventilation system as claimed in claim 3, wherein: the air reservoir (3) is a closed space formed by arranging an air inlet end closed brick wall (3.1) and an air outlet end closed brick wall (3.2) at two ends of an original waste roadway with a lower temperature respectively; an air inlet pipe barrel (3.1.1) is fixedly arranged on the air inlet end closed brick wall (3.1) of the air warehouse, an air outlet pipe barrel (3.2.1) is fixedly arranged on the air outlet end closed brick wall (3.2) of the air warehouse, and an air warehouse fan (3.2.1.1) is arranged on the air outlet pipe barrel (3.2.1).
6. The old mine ventilation system reconstruction method as claimed in claim 5, wherein: emergency air supply pipes (3.1.2) are arranged on the air inlet end closed brick wall (3.1) and the air outlet end closed brick wall (3.2) of the air warehouse; the emergency air supply pipe (3.1.2) is provided with a control valve.
7. The old mine ventilation system reconstruction method as claimed in claim 5, wherein: the air inlet end closed brick wall (3.1) and the air outlet end closed brick wall (3.2) of the air warehouse are provided with pedestrian passing doors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110827917.9A CN113468647B (en) | 2021-07-22 | 2021-07-22 | Old mine ventilation system transformation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110827917.9A CN113468647B (en) | 2021-07-22 | 2021-07-22 | Old mine ventilation system transformation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113468647A true CN113468647A (en) | 2021-10-01 |
| CN113468647B CN113468647B (en) | 2023-11-17 |
Family
ID=77881649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110827917.9A Active CN113468647B (en) | 2021-07-22 | 2021-07-22 | Old mine ventilation system transformation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113468647B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265349A (en) * | 2014-08-07 | 2015-01-07 | 玉溪矿业有限公司 | Mine ventilation system building method based on DIMINE software |
| CN110633540A (en) * | 2019-09-24 | 2019-12-31 | 青岛理工大学 | Metal mine ventilation three-dimensional visual simulation aided decision control system and method |
| KR102246499B1 (en) * | 2019-12-13 | 2021-05-04 | 주식회사 이에스피 | System and method for mine safety integrated management |
-
2021
- 2021-07-22 CN CN202110827917.9A patent/CN113468647B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265349A (en) * | 2014-08-07 | 2015-01-07 | 玉溪矿业有限公司 | Mine ventilation system building method based on DIMINE software |
| CN110633540A (en) * | 2019-09-24 | 2019-12-31 | 青岛理工大学 | Metal mine ventilation three-dimensional visual simulation aided decision control system and method |
| KR102246499B1 (en) * | 2019-12-13 | 2021-05-04 | 주식회사 이에스피 | System and method for mine safety integrated management |
Non-Patent Citations (2)
| Title |
|---|
| 柳明明: "Ventsim三维通风仿真系统在金山矿山的应用", 《金属矿山》, no. 412 * |
| 王海宁;彭斌;彭家兰;刘红芳;: "基于三维仿真的矿井通风系统及其优化研究", 中国安全科学学报, no. 09 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113468647B (en) | 2023-11-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104746531B (en) | A kind of stainless steel composite pipe gallery | |
| CN104871747A (en) | Low-temperature grain storage method for low-temperature barn | |
| CN110440429A (en) | Subway arch top ventilation shaft assembling constructing method | |
| CN113468647A (en) | Old mine ventilation system transformation method | |
| CN108709227A (en) | One kind dividing room type ground heat heating device and installation method | |
| CN110067588B (en) | Tunnel cold air system based on phase change cold storage | |
| CN202628160U (en) | System for realizing long-time uniform cooling in high-temperature stope face of mine | |
| CN204063227U (en) | A kind of combination energy-saving heating system comprising UTILIZATION OF VESIDUAL HEAT IN Cycling hot-blast heating system | |
| CN206571204U (en) | A kind of prizing liquefied oil gas bottle gas supply station | |
| CN217598384U (en) | New energy automobile trades power station | |
| CN115560407A (en) | Public area ventilation air-conditioning system with machine room arranged in middle of subway station | |
| CN211257072U (en) | Utility tunnel ventilation unit, utility tunnel and utility tunnel system | |
| CN114033463A (en) | Method for regulating and controlling interval subsection positive accumulated temperature and negative accumulated temperature of heat insulation structure by combined ventilation | |
| CN208332439U (en) | One kind dividing room type ground heat heating device | |
| CN102619254A (en) | Thermal insulation water supply well through geothermal method and construction method thereof | |
| CN217501730U (en) | Mine total air inlet lane sprays heat sink | |
| CN220541207U (en) | Diverting and heat exchanging heating system for geothermal fluid containing oil gas | |
| CN217810463U (en) | Bridge structure with pipe gallery function | |
| CN114427281B (en) | Waterproof box can be dismantled to electromechanical pipeline wears structure roofing | |
| CN211080298U (en) | Utility tunnel steel unit and utility tunnel | |
| CN207214852U (en) | Unpowered cooling tower unit noise reduction system | |
| Akgül et al. | Investigation of Methods to Increase Energy Efficiency in Old Buildings: A Case Study on a School Building Constructed in 2007 | |
| CN2814215Y (en) | Building indoor temperature regulating device | |
| Zhang et al. | Study on optimization regulation algorithm and application of mine ventilation system | |
| CN205532677U (en) | Shaft ventilation air methane discharging equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240603 Address after: 527300 Gaocheng lead zinc mining area, Datian village committee, Gaocun Town, yun'an District, Yunfu City, Guangdong Province Patentee after: Guangdong faende Mining Co.,Ltd. Country or region after: China Address before: 471716 Zhuangtou Village, Xiayu Town, Luoning County, Luoyang City, Henan Province Patentee before: HENAN FAENDE MINING CO.,LTD. Country or region before: China |