CN101338685B - Elevated plain mine artificial supercharging and aeration method - Google Patents
Elevated plain mine artificial supercharging and aeration method Download PDFInfo
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- CN101338685B CN101338685B CN200810138528XA CN200810138528A CN101338685B CN 101338685 B CN101338685 B CN 101338685B CN 200810138528X A CN200810138528X A CN 200810138528XA CN 200810138528 A CN200810138528 A CN 200810138528A CN 101338685 B CN101338685 B CN 101338685B
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Abstract
The present invention discloses a plateau mine manual supercharging and ventilating method which mainly comprises the steps as follows: a proper mine main ventilator (1) is used for blowing ventilation; an air adit (4) is excavated between a main well (2) and an auxiliary well (3) and is used for installing the main ventilator (1); the air adit (4) is respectively communicated with the main well (2) and the auxiliary well (3); a closed establishment (6) is built at the well mouth of the auxiliary well (3). Two air doors (5) are arranged at the well cylinder of the main well (2) to prevent the air which is not utilized from exhausting; the main well (2) and the auxiliary well (3) are also used as air inlet wells; an air well (9) is specially used for the air return of the whole mine; under the action of the blowing main ventilator (1), a whole mine ventilation system is under the state of plus pressure higher than local atmospheric pressure; an adjusting air door (8) is arranged in a main air return laneway or an air return well to increase the ventilation resultant drag of the mine, and the same time, the adjusting air door (8) controls the mine ventilation resistance distribution to ensure that higher air pressure is formed at air places, such as a working face (7), and the like, so as to realize the purposes of improving underground air pressure and increasing the oxygen content of unit bulk. The plateau mine manual supercharging and ventilating method is fit for improving the underground air pressure of the plateau mine and the oxygen content of unit bulk and improving the underground working environment.
Description
Technical field
The present invention relates to a kind ofly can improve underground air pressure and unit volume oxygen content, improve the elevated plain mine artificial supercharging and aeration method of plateau mine working environment at coal mines.
Background technology
At present, the plateau mine mainly adopts exhaust ventilation, and main ventilation fan is installed in the return air well head, major and minor well air intake, returnairshaft return air.But, under the effect of the main ventilation fan of pull-out type, the whole mine ventilation system is in the negative pressure state that is lower than local atmospheric pressure, because the environmental quality of highlands is that atmospheric pressure is low, the rarefaction of air anoxic, adopt exhaust ventilation that underground air pressure is further reduced, cause down-hole anoxic problem to become even more serious, brought adverse effect to the operation of personnel in the pit work and electromechanical equipment.
Summary of the invention
In order to overcome underground air pressure and the low deficiency of unit volume oxygen content that exists in the existing method of ventilation of plateau mine, the invention provides a kind of elevated plain mine artificial supercharging and aeration method of knowing clearly, this method can improve plateau mine underground air pressure and unit volume oxygen content, improves working environment at coal mines.
The technical solution adopted for the present invention to solve the technical problems is: according to mine blast volume, the force value that overall resistance of mine airflow and underground air need improve is chosen suitable main fan in mine, adopt forced ventilation, leading, beat the wind cave between the auxiliary shaft main ventilation fan is installed, the wind cave respectively with the master, auxiliary shaft connects, construct airtight facility at auxiliary well head, establish the twice air door at main shaft, prevent distinguished and admirable without utilizing directly from the master, auxiliary shaft is discharged, main shaft, the double downcast of doing of auxiliary shaft, ventilating shaft is specifically designed to the return air of whole mine, under the effect of forced main ventilation fan, the whole mine ventilation system is in the barotropic state that is higher than local atmospheric pressure, and underground air pressure is tentatively improved; Because distinguished and admirable flowing in the tunnel must be constantly overcomes resistance in the tunnel with corresponding air pressure, the mobile required air pressure of the big more air of tunnel resistance is big more, and air pressure is along with the extension in tunnel constantly reduces in the mine, therefore in main return aircourse or returnairshaft, air damper is set, increase the ventilation drag overall of mine, distribute by air damper control mine resistance simultaneously, reduce the preceding Air Resistance in Roadway Ventilation of work plane, Air Resistance in Roadway Ventilation behind the increase work plane, make usefulness wind place such as work plane form higher air pressure, on the basis of forced ventilation, further improve underground air pressure.
The invention has the beneficial effects as follows, when guaranteeing down-hole institute required airflow, effectively improve underground air pressure, increase the unit volume oxygen content, improved personnel in the pit's work and electromechanical equipment running environment.
Description of drawings
Figure of description is the elevated plain mine artificial supercharging and aeration method plan.
1. main fan in mine among the figure, 2. main shaft, 3. auxiliary shaft, 4. wind cave, 5. air door is 6. airtight, 7. work plane, 8. air damper, 9. ventilating shaft.
The specific embodiment
Below in conjunction with accompanying drawing embodiments of the invention are described further:
In the figure illustrated embodiment, according to mine blast volume, the force value that overall resistance of mine airflow and underground air need improve is chosen suitable main fan in mine (1), adopt forced ventilation, between main shaft (2) and auxiliary shaft (3), beat wind cave (4) main ventilation fan (1) is installed, wind cave (4) connects with main shaft (2) and auxiliary shaft (3) respectively, distinguished and admirable in order to prevent without utilizing directly from main shaft (2) and auxiliary shaft (3) discharge, construct airtight facility (6) at auxiliary shaft (3) well head, establish twice air door (5) at main shaft (2) pit shaft, main shaft (2) and the double downcast of doing of auxiliary shaft (3), ventilating shaft (9) is specifically designed to the return air of whole mine, under the effect of forced main ventilation fan, the whole mine ventilation system is in and is higher than local atmospheric barotropic state, owing to distinguished and admirablely constantly overcome resistance in the tunnel when flowing along the tunnel with corresponding air pressure in the down-hole, the pressure of air is along with the extension in tunnel is ever-reduced, increase the mine drag overall by air damper (8) being set in main return aircourse, distribute by air damper (8) control mine resistance simultaneously, form higher air pressure near making work plane (7), improved underground air pressure and unit volume oxygen content.
Claims (1)
1. one kind is improved plateau mine underground air pressure and unit volume oxygen content, improves the elevated plain mine artificial supercharging and aeration method of working environment at coal mines, comprising:
Choose suitable main fan in mine (1) according to the force value that mine blast volume, overall resistance of mine airflow and underground air needs improve, between main shaft (2) and auxiliary shaft (3), beat wind cave (4) main ventilation fan (1) is installed, wind cave (4) connects with main shaft (2) and auxiliary shaft (3) respectively, main shaft (2), the double downcast of doing of auxiliary shaft (3), ventilating shaft (9) is specifically designed to the return air of whole mine;
It is characterized in that: adopt forced ventilation, distinguished and admirable in order to prevent without utilizing directly from main shaft (2) and auxiliary shaft (3) discharge, construct airtight facility (6) at auxiliary shaft (3) well head, twice air door (5) is established in top at main shaft (2) pit shaft and wind cave (4) connector, under the effect of forced main ventilation fan (1), the whole mine ventilation system is in and is higher than local atmospheric barotropic state, underground air pressure is tentatively improved, in main return aircourse or returnairshaft, air damper (8) is set, increase the ventilation drag overall of mine, distribute by air damper (8) control mine resistance, make the underground work environment form higher air pressure, on the basis of forced ventilation, further improve underground air pressure, thereby improve the unit volume oxygen content.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810138528XA CN101338685B (en) | 2008-07-17 | 2008-07-17 | Elevated plain mine artificial supercharging and aeration method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810138528XA CN101338685B (en) | 2008-07-17 | 2008-07-17 | Elevated plain mine artificial supercharging and aeration method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101338685A CN101338685A (en) | 2009-01-07 |
| CN101338685B true CN101338685B (en) | 2010-06-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810138528XA Expired - Fee Related CN101338685B (en) | 2008-07-17 | 2008-07-17 | Elevated plain mine artificial supercharging and aeration method |
Country Status (1)
| Country | Link |
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| CN (1) | CN101338685B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102071963A (en) * | 2010-12-04 | 2011-05-25 | 北京科技大学 | Oxygen increasing method and device for working face of non-coal mine at plateau |
| CN106321138B (en) * | 2016-09-13 | 2018-06-01 | 中钢集团马鞍山矿山研究院有限公司 | A kind of underground metal mine multi fan station ventilation system inverted ventilation test method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101215973A (en) * | 2007-12-29 | 2008-07-09 | 中铁隧道集团有限公司 | Tunnel construction jet flow laneway ventilation method |
-
2008
- 2008-07-17 CN CN200810138528XA patent/CN101338685B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101215973A (en) * | 2007-12-29 | 2008-07-09 | 中铁隧道集团有限公司 | Tunnel construction jet flow laneway ventilation method |
Non-Patent Citations (4)
| Title |
|---|
| 孙信义.试论压入式通风在高海拔矿井中的应用.煤炭工程 3.2004,(3),35-39. |
| 孙信义.试论压入式通风在高海拔矿井中的应用.煤炭工程 3.2004,(3),35-39. * |
| 马红伟等.五七煤矿开采后期正压通风的生产实践.中州煤炭 4.2007,(4),91-92. |
| 马红伟等.五七煤矿开采后期正压通风的生产实践.中州煤炭 4.2007,(4),91-92. * |
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| CN101338685A (en) | 2009-01-07 |
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Granted publication date: 20100616 Termination date: 20120717 |