CN215672305U - Multi-middle-section unilateral long-distance single-head tunneling relay ventilation system - Google Patents
Multi-middle-section unilateral long-distance single-head tunneling relay ventilation system Download PDFInfo
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Abstract
The utility model provides a multi-middle-section single-side long-distance single-head tunneling relay ventilation system. The ventilation system comprises an air shaft, at least two pulse outer roadways at the middle sections, an air cave, a plurality of fans and air cylinders, wherein the pulse outer roadways are communicated with the air shaft; the dryer includes air inlet dryer and return air dryer, and the fan passes through the air inlet dryer with fresh air current carry to every the operation face in outer lane of pulse to dirty wind through the return air dryer with the operation face production is discharged to the earth's surface. Through the mode, the fresh air flow can be conveyed to the operation surface of each middle section, so that effective ventilation of the middle sections is realized; meanwhile, dirty air generated by the working face can be fully discharged, the dirty air is effectively prevented from entering a roadway, and the air quality in the roadway is ensured, so that fresh air flow is safely, reliably and efficiently provided for the tunneling working face, the working environment of the tunneling working face is improved, and the method has important practical application value for safe and effective ventilation in the multi-middle-section single-side long-distance single-head tunneling process.
Description
Technical Field
The utility model relates to the technical field of underground mine ventilation, in particular to a multi-middle-section single-side long-distance single-head tunneling relay ventilation system.
Background
The mine ventilation system is used as an important production auxiliary system in the process of mining ore bodies, and is mainly used for continuously conveying fresh air to the underground, discharging toxic and harmful gas and dust, and regulating the temperature of the underground mine, so that a good mining environment is created, and the safety and health of miners are ensured. Therefore, the mine ventilation system is an important safety guarantee for underground mining operation, and how to design a safe and effective mine ventilation system has important significance for the safety of the underground operation and the efficient mining.
In the actual exploitation process, main engineering usually includes main shaft, air shaft and partial middle section prospecting engineering, need equip when the main shaft pit shaft, when unable realization both sides are tunneled simultaneously, then can lead to a plurality of middle sections to need unilateral long distance one-head tunnelling, causes the ventilation degree of difficulty to obviously increase, and conventional ventilation system has been difficult to satisfy the ventilation demand of carrying out unilateral long distance one-head tunnelling to many middle sections.
The patent with publication number CN111140269A provides a ventilation system is tunneled to many working faces one-end of metal underground mine capital construction period, this patent sets up the earth's surface fan through the well head play at the mine, set up the clean room in the mine tunnel, set up purifying box and a plurality of transfer fan in the clean room again, make the gas outlet of every transfer fan pass through an air outlet and a branch dryer on the clean room lateral wall and send gas to a tunnelling working face to effectively solve the common not enough problem of air volume of underground mine one-end tunnelling working face. However, the structure of the purification chamber in the ventilation system is complex, and the construction difficulty is improved to a certain extent; and the ventilation system can only introduce fresh air into a plurality of tunneling operation surfaces in a single middle section, and the ventilation requirements of a plurality of middle sections are difficult to meet simultaneously.
In view of the above, there is a need for an improved multi-section single-side long-distance single-heading relay ventilation system to solve the above problems.
SUMMERY OF THE UTILITY MODEL
In view of the defects of the prior art, the utility model aims to provide a multi-middle-section single-side long-distance single-head tunneling relay ventilation system. The air inlet and the air return wind cylinders are respectively erected in the shaft of the air shaft, fresh air flow is sent to the wind tunnel in each middle section underground through the air inlet wind cylinders, then fresh air flow is sent to the operation surface in the roadway outside the vein by a local fan in the wind tunnel, and dirty air generated by the operation surface is directly discharged to the ground surface through the air return wind cylinders, so that the dirty air is effectively prevented from entering the roadway, the air quality in the roadway is ensured, the fresh air flow is safely, reliably and efficiently provided for the tunneling working surface, and the operation environment of the tunneling working surface is improved.
In order to achieve the purpose, the utility model provides a multi-middle-section one-side long-distance single-head tunneling relay ventilation system which comprises an air shaft, at least two middle-section extrapulous roadways communicated with the air shaft, an air cave communicated with the extrapulous roadways, a plurality of fans and air cylinders, wherein the air cave is communicated with the extrapulous roadways; the dryer includes air inlet dryer and return air dryer, the fan passes through the air inlet dryer will fresh air current carry to every the operation face in outer lane of pulse, and pass through the return air dryer will dirty wind that the operation face produced discharges to the earth's surface.
As a further improvement of the utility model, the fan cave is internally provided with an air inlet of the air duct and a fan mounting opening.
As a further improvement of the present invention, the fan includes at least one surface fan disposed at the wellhead of the air shaft, a fan in the wind tunnel through the fan installation port, and a drawout fan disposed in the extravenal roadway near the working surface.
As a further improvement of the utility model, the fan further comprises a plurality of relay office fans uniformly distributed between the fan cave and the working surface, and the joint of each relay office fan is connected by a hard air duct.
As a further improvement of the utility model, the air inlet duct comprises a main air inlet duct arranged in the shaft of the air shaft and branch air ducts respectively arranged in the pulse outer tunnels corresponding to the middle sections, and each branch air duct is communicated with the main air inlet duct; the main air inlet cylinder is connected with the surface fan, the branch air cylinder conveys fresh air flow to the air chamber through the air cylinder air inlet, and the air chamber local fan conveys the fresh air flow to the operation surface through the branch air cylinder.
As a further improvement of the utility model, the air return duct comprises a main air return duct arranged in the shaft of the air shaft and sub air return ducts respectively arranged in the pulse outer lane corresponding to each middle section, and each sub air return duct is communicated with the main air return duct; the sub air return cylinder is connected with the extraction type fan.
As a further improvement of the utility model, a group of spraying dust settling devices are respectively arranged on two sides of the draw-out type fan and used for reducing the dust concentration.
As a further improvement of the utility model, the main air inlet barrel is a hard air barrel, and the sub air inlet barrel and the air return barrel are soft air barrels.
As a further improvement of the utility model, the diameter of the hard air duct is 600-1000 mm, and the diameter of the soft air duct is 400-600 mm.
As a further improvement of the utility model, the surface fan and the extraction fan are axial fans.
The utility model has the beneficial effects that:
according to the utility model, the air inlet and air return wind cylinders are respectively erected in the shaft of the air shaft, so that on one hand, fresh air flow extracted by the surface fan can be sent to the underground through the air inlet wind cylinders and is respectively conveyed to the air tunnels in the middle sections through the air branch wind cylinders, and then the fresh air flow is sent to the operation surface in the extravenal roadway by the local fan in the air tunnels, so that effective ventilation of the middle sections is realized; on the other hand, the dirty wind generated by the working face of each middle section can be directly discharged to the ground surface through the return air duct under the action of the extraction type fan, so that the dirty wind is effectively prevented from entering a roadway, the air quality in the roadway is ensured, the fresh wind flow is safely, reliably and efficiently provided for the driving working face, and the working environment of the driving working face is improved.
Meanwhile, the utility model takes the fan drift as a starting point, and installs corresponding relay office fans at intervals of preset distance, so that the relay office fans are uniformly distributed between the fan drift and the working face, thereby ensuring that fresh air flow can be continuously conveyed to the working face in the process of long-distance one-head tunneling, thoroughly solving the ventilation problem of deep long-distance one-head tunneling, effectively improving the working environment in mines and tunnels, and improving the mining efficiency and safety.
In addition, the spray dust settling device is arranged at the position of the draw-out fan, so that the dust concentration is reduced, and the working environment is further improved; the multi-middle-section single-side long-distance single-head tunneling relay ventilation system provided by the utility model is simple in overall structure, easy to install, good in ventilation effect and higher in practical application value.
Drawings
Fig. 1 is a schematic structural diagram of a multi-middle-section single-side long-distance single-head tunneling relay ventilation system provided by the utility model.
Reference numerals
1. An air shaft; 21. a first extraarterial roadway; 22. a second extraarterial roadway; 31. a first wind cave; 32. a second fan drift; 41. a first working surface; 42. a second working surface; 51. a surface fan; 52. a first fan of a fan cave; 53. a second fan of the wind cave; 54. a first draw-out fan; 55. a second draw-out fan; 61. a main air inlet cylinder; 62. a first branch air inlet cylinder; 63. a second air inlet cylinder; 71. a main air return duct; 72. a first branch return air duct; 73. and the second air return duct.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
It should be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and/or processing steps closely related to the aspects of the present invention are shown in the drawings, and other details not closely related to the present invention are omitted.
In addition, it is also to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Referring to fig. 1, the utility model provides a multi-middle-section one-side long-distance single-head tunneling relay ventilation system, which comprises an air shaft 1, at least two middle-section extrapulous roadways communicated with the air shaft 1, an air cave communicated with the extrapulous roadways, and a plurality of fans and air cylinders; the dryer includes air inlet dryer and return air dryer, the fan passes through the air inlet dryer will fresh air current carry to every the operation face in outer lane of pulse, and pass through the return air dryer will dirty wind that the operation face produced discharges to the earth's surface.
The fan cave is internally provided with an air duct air inlet and a fan mounting opening and is used for introducing fresh air flow input by the air inlet air duct into the fan cave, and a local fan is mounted through the fan mounting opening and further conveys the fresh air flow to a working surface.
In an embodiment of the present invention, the first development section is set to be a 300m section and a 350m section, wherein the 350m section is used for tunneling a first extrapulsating roadway 21, and the 300m section is used for tunneling a second extrapulsating roadway 22; the tail ends of the first pulse outer roadway 21 and the second pulse outer roadway 22 are respectively a first working surface and a second working surface, and the first wind cave 31 and the second wind cave 32 are respectively communicated with the first pulse outer roadway 21 and the second pulse outer roadway 22.
Specifically, the fans include at least one surface fan 51 arranged at the wellhead of the air shaft 1, a first fan office fan 52 and a second fan office fan 53 respectively arranged in the first fan office 31 and the second fan office 32 through the fan mounting ports, a first extraction type fan 54 arranged in the first extravenal roadway 21 and close to the first working surface 41, and a second extraction type fan 55 arranged in the second extravenal roadway 22 and close to the second working surface 42. In some embodiments of the present invention, the surface fan 51 has two fans, one fan is a spare fan, and each fan is a 2 × 30kW axial-flow fan; each fan and the extraction type fan are axial flow fans of 2 multiplied by 11 kW. A group of spraying and dust settling devices are respectively arranged on two sides of the first extraction type fan 54 and the second extraction type fan 55 and used for reducing the dust concentration.
Meanwhile, the air inlet duct comprises a main air inlet barrel 61 arranged in the shaft of the air shaft 1, and a first branch air inlet barrel 62 and a second branch air inlet barrel 63 respectively arranged in the first pulse outer lane 21 and the second pulse outer lane 22, wherein the first branch air inlet barrel 62 and the second branch air inlet barrel 63 are respectively communicated with the main air inlet barrel 61; the main air inlet barrel 61 is connected with the surface fan 51, the first branch air inlet barrel 62 and the second branch air inlet barrel 63 respectively convey fresh air to the first fan cave 31 and the second fan cave 32 through the air barrel air inlets, and then the first fan cave local fan 52 and the second fan cave local fan 53 respectively convey the fresh air to the first working surface 41 and the second working surface 42 through the first branch air inlet barrel 62 and the second branch air inlet barrel 63.
The air return duct comprises a main air return duct 71 arranged in the shaft of the air shaft 1, and a first sub air return duct 72 and a second sub air return duct 73 which are respectively arranged in the first vein outer lane 21 and the second vein outer lane 22, wherein the first sub air return duct 72 and the second sub air return duct 73 are respectively communicated with the main air return duct 71; the first and second split return ducts 72 and 73 are connected to the first and second extraction fans 54 and 55, respectively.
In some embodiments of the present invention, the main air inlet barrel 61 is a hard air barrel with a diameter of 600mm, and each sub air inlet barrel and the air return barrel are soft air barrels with a diameter of 400 mm. In other embodiments of the present invention, the diameter of the hard air duct can be selected from 600 to 1000mm as required, and the diameter of the soft air duct can also be selected from 400 to 600mm, both of which can meet the use requirements.
In some embodiments of the present invention, the fan further includes a plurality of first relay office fans uniformly distributed between the first wind cave 31 and the first working surface 41, and a plurality of second relay office fans uniformly distributed between the second wind cave 32 and the second working surface 42, a connection of each relay office fan is connected by using a hard wind tunnel, and an interval between adjacent relay office fans is 400m, so that it is ensured that fresh wind flow can be continuously conveyed to the working surface in a long-distance single-heading process, a ventilation problem of deep long-distance single-heading is thoroughly solved, an operating environment in a mine and a roadway is effectively improved, and mining efficiency and safety are improved.
The working principle of the multi-middle-section single-side long-distance single-head tunneling relay ventilation system provided by the utility model is explained as follows:
the air inlet and air return two air ducts are respectively erected in the shaft of the air shaft, fresh air flow extracted by an earth surface fan is sent to the underground through the main air inlet duct and is respectively conveyed to the air tunnels in the middle sections through the branch air ducts, and then the fresh air flow is sent to the operation surface in the extravenal roadway by the local fan in the air tunnels, so that effective ventilation of the middle sections is realized; meanwhile, the dirty air generated by the working face of each middle section is directly discharged to the ground surface through the air return air drum under the action of the extraction type fan, so that the dirty air is effectively prevented from entering a roadway, the air quality in the roadway is ensured, and therefore, fresh air flow is safely, reliably and efficiently provided for the driving working face, and the working environment of the driving working face is improved.
In conclusion, the utility model provides a multi-middle-section single-side long-distance single-head tunneling relay ventilation system. The ventilation system comprises an air shaft, at least two pulse outer roadways at the middle sections, an air cave, a plurality of fans and air cylinders, wherein the pulse outer roadways are communicated with the air shaft; the dryer includes air inlet dryer and return air dryer, and the fan passes through the air inlet dryer with fresh air current carry to every the operation face in outer lane of pulse to dirty wind through the return air dryer with the operation face production is discharged to the earth's surface. Through the mode, the fresh air flow can be conveyed to the operation surface of each middle section, so that effective ventilation of the middle sections is realized; meanwhile, dirty air generated by the working face can be fully discharged, the dirty air is effectively prevented from entering a roadway, and the air quality in the roadway is ensured, so that fresh air flow is safely, reliably and efficiently provided for the tunneling working face, the working environment of the tunneling working face is improved, and the method has important practical application value for safe and effective ventilation in the multi-middle-section single-side long-distance single-head tunneling process.
Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the present invention.
Claims (10)
1. The utility model provides a many middle sections unilateral long distance single-end tunnelling relay ventilation system which characterized in that: the wind tunnel comprises a wind shaft (1), at least two pulse outer tunnels at the middle sections, a wind tunnel, a plurality of fans and wind cylinders, wherein the pulse outer tunnels are communicated with the wind shaft (1); the dryer includes air inlet dryer and return air dryer, the fan passes through the air inlet dryer will fresh air current carry to every the operation face in outer lane of pulse, and pass through the return air dryer will dirty wind that the operation face produced discharges to the earth's surface.
2. The multi-midsection single-side long-distance single-head tunneling relay ventilation system according to claim 1, characterized in that: and an air inlet of the air duct and a fan mounting opening are arranged in the wind cave.
3. The multi-midsection single-side long-distance single-head tunneling relay ventilation system according to claim 2, characterized in that: the fan including set up in at least one ground surface fan (51) of blast well wellhead department, through the fan installing port set up in the fan cave office fan in the fan cave and set up in be close to in the outer lane of arteries and veins the pull-out type fan of operation face department.
4. The multi-midsection single-side long-distance single-head tunneling relay ventilation system according to claim 3, characterized in that: the fan further comprises a plurality of relay local fans which are uniformly distributed between the fan cave and the working surface, and the joints of the relay local fans are connected through hard air ducts.
5. The multi-midsection single-side long-distance single-head tunneling relay ventilation system according to claim 3, characterized in that: the air inlet air duct comprises a main air inlet duct (61) arranged in the air shaft and branch air ducts respectively arranged in the pulse outer roadway corresponding to each middle section, and each branch air duct is communicated with the main air inlet duct; the main air inlet cylinder is connected with the surface fan, the branch air cylinder conveys fresh air flow to the air chamber through the air cylinder air inlet, and the air chamber local fan conveys the fresh air flow to the operation surface through the branch air cylinder.
6. The multi-midsection single-side long-distance single-head tunneling relay ventilation system according to claim 3, characterized in that: the air return air cylinder comprises a main air return cylinder (71) arranged in the air shaft and sub air return cylinders respectively arranged in the pulse outer roadway corresponding to each middle section, and each sub air return cylinder is communicated with the main air return cylinder; the sub air return cylinder is connected with the extraction type fan.
7. The multi-midsection single-side long-distance single-head tunneling relay ventilation system according to claim 3, characterized in that: and a group of spraying dust settling devices are respectively arranged on two sides of the draw-out fan and used for reducing the dust concentration.
8. The multi-midsection single-side long-distance single-head tunneling relay ventilation system according to claim 5, characterized in that: the main air inlet barrel (61) is a hard air barrel, and the sub air inlet barrel and the air return barrel are soft air barrels.
9. The multi-midsection single-side long-distance single-head tunneling relay ventilation system according to claim 8, characterized in that: the diameter of stereoplasm dryer is 600 ~ 1000mm, the diameter of soft dryer is 400 ~ 600 mm.
10. The multi-midsection single-side long-distance single-head tunneling relay ventilation system according to claim 3, characterized in that: the surface fan (51) and the extraction type fan are axial flow fans.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121286327.1U CN215672305U (en) | 2021-06-09 | 2021-06-09 | Multi-middle-section unilateral long-distance single-head tunneling relay ventilation system |
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| CN202121286327.1U CN215672305U (en) | 2021-06-09 | 2021-06-09 | Multi-middle-section unilateral long-distance single-head tunneling relay ventilation system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114705472A (en) * | 2022-06-07 | 2022-07-05 | 四川省鼓风机制造有限责任公司 | Ventilator wind power control test tool platform and using method |
| CN115653662A (en) * | 2022-11-18 | 2023-01-31 | 太原理工大学 | Ventilation system of long-distance single-head roadway |
-
2021
- 2021-06-09 CN CN202121286327.1U patent/CN215672305U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114705472A (en) * | 2022-06-07 | 2022-07-05 | 四川省鼓风机制造有限责任公司 | Ventilator wind power control test tool platform and using method |
| CN114705472B (en) * | 2022-06-07 | 2022-09-06 | 四川省鼓风机制造有限责任公司 | Ventilator wind power control test tool platform and using method |
| CN115653662A (en) * | 2022-11-18 | 2023-01-31 | 太原理工大学 | Ventilation system of long-distance single-head roadway |
| CN115653662B (en) * | 2022-11-18 | 2024-01-30 | 太原理工大学 | Ventilating system of long-distance single-head roadway |
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