CN114837724A - Pressure-equalizing ventilation regulating device and method for metal mine deep well mining - Google Patents
Pressure-equalizing ventilation regulating device and method for metal mine deep well mining Download PDFInfo
- Publication number
- CN114837724A CN114837724A CN202210683997.XA CN202210683997A CN114837724A CN 114837724 A CN114837724 A CN 114837724A CN 202210683997 A CN202210683997 A CN 202210683997A CN 114837724 A CN114837724 A CN 114837724A
- Authority
- CN
- China
- Prior art keywords
- air
- mining
- ventilation
- ventilator
- pressure
- 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.)
- Pending
Links
- 238000005065 mining Methods 0.000 title claims abstract description 84
- 238000009423 ventilation Methods 0.000 title claims abstract description 74
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 34
- 239000002184 metal Substances 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000012544 monitoring process Methods 0.000 claims abstract description 41
- 238000004088 simulation Methods 0.000 claims abstract description 33
- 238000009826 distribution Methods 0.000 claims abstract description 19
- 230000001276 controlling effect Effects 0.000 claims description 18
- 238000004364 calculation method Methods 0.000 claims description 12
- 238000009434 installation Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/02—Test models
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
Abstract
The invention relates to a pressure-equalizing ventilation regulating device and a pressure-equalizing ventilation regulating method for deep well mining of a metal mine, belonging to the technical field of ore mining, wherein the regulating device comprises an air inlet system, an operation system, a simulation system, a ventilator frequency modulation system, an air volume monitoring system and an air return system; the system comprises an air inlet system, an operation system and an air return system, wherein the air inlet system, the operation system and the air return system form a mine ventilation system, the simulation system is arranged in an earth surface dispatching room, and the ventilator frequency modulation system and the air quantity monitoring system are arranged in a roadway of an additional mining auxiliary ventilator. According to the pressure-equalizing ventilation regulating device and method for deep well mining of metal mines, the air pressure of the air path where the external air leakage point of the ventilation system is located tends to zero pressure or positive pressure by the aid of the air volume and the air pressure generated by the additional mining auxiliary ventilator according to the air volume and the pressure distribution of the external air leakage point on the ventilation air path, so that the external air leakage is reduced, and the effective air volume rate of a mine is improved to the maximum extent.
Description
Technical Field
The invention relates to a pressure-equalizing ventilation regulating and controlling device and a pressure-equalizing ventilation regulating and controlling method for mining of a deep mine, in particular to a pressure-equalizing ventilation regulating and controlling device and a pressure-equalizing ventilation regulating and controlling method for mining of a deep mine of a metal mine, which have external air leakage in a ventilation system due to the fact that a closed large-area goaf cannot be fully and effectively filled, and belongs to the technical field of ore mining.
Background
The goaf is one of dangerous sources influencing the safe production of the mine, and the air leakage amount of the goaf is suddenly reduced along with seasonal changes and temperature differences in the morning and evening, so that the reliability and the stability of an underground ventilation system are poor, the air distribution of an operation place is out of control, and the normal safe production of the mine is seriously influenced. Therefore, how to realize that the external air leakage caused by the goaf is in a controllable range and improve the effective air volume rate of the mine to the maximum extent becomes a problem to be solved urgently in the mine.
The method adopts common sealing and filling measures to control the air leakage of the goaf, can generally effectively solve the air leakage problem of most roadways or goafs of stopes which are finished with operation, but for metal mines in which an air leakage channel is difficult to control through the measures of filling, sealing and the like, the main control methods at present mainly comprise the following two methods:
the invention discloses a method and a device for controlling air leakage of a mine goaf, wherein the method and the device are characterized in that the static pressure of a through goaf penetration is collected by collecting the air speed in an air return roadway of an operation stope and the air speed in the air inlet roadway which is 5-10m away from an air inlet of a mine ventilator, the static pressure in a connecting roadway between the goaf penetration and a transportation roadway is collected and transmitted to a plc control system, then the mine ventilator is started and stopped remotely and the running frequency of the mine ventilator is regulated and controlled through a frequency converter, the consistency of the air inlet and return quantity of an operation area is realized, and the through goaf penetration in a ventilation system is positioned in a positive pressure area. Although the method solves the problem of air leakage at the through place of the stope and the goaf in the special production operation, an effective method is not provided for controlling the situations of no air leakage of the operation stope, air leakage outside the goaf which cannot be effectively sealed and exists in the middle section of the upper part of the operation stope and the like.
The Chinese invention patent No. ZL201510292821.1 discloses an experimental platform for simulating air leakage and plugging of a goaf, which can simulate the connection of an air inlet of a roadway and a special ventilator by adjusting the height of a support and can simulate the flow of inlet air and return air in the roadway underground; the wind flow sensor can detect the wind flow of different positions of the simulation working surface; filling stones with different crushing degrees into the push box; the plugging effect of the air plugging material can be visually measured by injecting the air plugging material into the push box. Although the method can effectively solve the problem of air leakage of the goaf, after the air leakage blocking material is injected into the upper middle goaf, the residual ore recovery operation cannot be continued in the area, and the loss of mineral resources is serious.
In summary, in combination with the characteristics of the metal mine draw-out ventilation system, if an external air leakage channel exists in the underground mining process of the mine, external air current can enter the mine ventilation system under the action of negative pressure generated by the draw-out ventilation system. Therefore, a pressure-equalizing ventilation regulating and controlling method for deep well mining of metal mines is needed, and the problems that air distribution in an operation area is out of control and the effective air rate of a mine is low due to air leakage outside a ventilation system can be solved on the premise that production is not influenced and waste of mineral resources is avoided.
Disclosure of Invention
The purpose of the invention is: in order to overcome the defects in the prior art, the pressure-equalizing ventilation regulating device and the pressure-equalizing ventilation regulating method for metal mine deep well mining are provided, the problems that air distribution in an operation area is out of control and the effective air rate of a mine is low due to external air leakage of a ventilation system can be solved, and the regulating device and the regulating method are suitable for metal mines with external air leakage of the ventilation system due to the fact that sealed large-area goafs cannot be completely and effectively filled.
The technical scheme for solving the technical problems is as follows:
a metal mine deep well mining pressure-equalizing ventilation regulating and controlling device comprises an air inlet system, an operation system, a simulation system, a ventilator frequency modulation system, an air quantity monitoring system and an air return system; the system comprises an air inlet system, an operation system and an air return system, wherein the air inlet system, the operation system and the air return system form a mine ventilation system, the simulation system is arranged in an earth surface dispatching room, and the ventilator frequency modulation system and the air quantity monitoring system are arranged in a roadway of an additional mining auxiliary ventilator.
Furthermore, the air inlet system comprises an air inlet shaft, an air leakage channel communicated with the ground surface goaf and an air inlet roadway.
Furthermore, the operation system comprises a stope access, a stope air inlet well, an operation stope, a stope return air well and a stope return air lane.
Furthermore, the simulation system comprises an original database of roadway wind resistance, network node branches, fan parameters and station parameters, and wind volume calculation and fan operation condition calculation functions.
Still further, the ventilator frequency modulation system comprises a mining auxiliary ventilator and a motor frequency converter; and the ventilator frequency modulation system is used for adjusting the air volume and the air pressure of the mining auxiliary ventilator.
Furthermore, the air volume monitoring system comprises an air velocity sensor and system accessories, wherein the air velocity sensor is arranged in a roadway of the mining auxiliary ventilator; and the air quantity monitoring system is used for monitoring the actual ventilation quantity of the mining auxiliary ventilator.
Furthermore, the distance between the wind speed sensor and a roadway top plate is less than 1m, and the distance between the wind speed sensor and the air inlet side of the mining auxiliary ventilator is 5-10 m.
Still further, the return air system comprises a return airway, a main ventilation well for mine and a return air well.
A regulation and control method based on the metal mine deep well mining pressure-equalizing ventilation regulation and control device comprises the following steps:
step 1, surveying and data arrangement are carried out on various underground roadway specifications, operation middle section arrangement, operation point distribution and ventilation resistance of a typical roadway, a simulation model is established, and a simulation system of a ventilation system is formed;
step 2, collecting the air volume calculation parameters of the operation system, calculating the actual air volume demand of the operation system, and outputting an air volume regulation and control target value of the operation system;
step 4, the simulation system outputs the operation initial frequency of the mining auxiliary ventilator, and the mining auxiliary ventilator operates according to the initial frequency, and then verification and comparison are carried out on the air quantity monitoring value of the operation system output by the air quantity monitoring system and the regulation and control target value;
The invention has the beneficial effects that: according to the pressure-equalizing ventilation regulating device and the pressure-equalizing ventilation regulating method for deep well mining of the metal mine, the air volume regulating target value of the operation system can be calculated through the simulation system according to the type and the working state of the operation surface of the underground operation system, and a reference value distinguishing reference is provided for the operation mode and the working condition of the additionally arranged auxiliary mine ventilator; according to the air volume and pressure distribution of the external air leakage point on the ventilation air duct, the air volume and the air pressure generated by the additional mining auxiliary ventilator are utilized, the air pressure of the air duct where the external air leakage point of the ventilation system is located tends to zero pressure or positive pressure, the external air leakage is reduced, and the effective air volume rate of a mine is improved to the maximum extent; the mine auxiliary ventilator can be adjusted according to the ventilator frequency modulation system, and the influence of different external air leakage quantities caused by the change of natural air pressure in different seasons and different time on the stability and reliability of the mine ventilation system is reduced.
Drawings
FIG. 1 is a schematic diagram of the framework of the present invention;
FIG. 2 is a schematic flow chart of the present invention;
fig. 3 is a schematic diagram of the mechanism of the present invention.
In the figure, 1, an air inlet system; 2. an operating system; 3. a simulation system; 4. a ventilator frequency modulation system; 5. an air quantity monitoring system; 6. an air return system; 7. a ground surface dispatching room; 8. an auxiliary ventilator for mining; 9. an air inlet well; 10. an air leakage channel is communicated with the ground surface goaf; 11. an air intake lane; 12. a return airway; 13. a main ventilator for mining; 14. a return air shaft; 15. a motor frequency converter; 16. a wind speed sensor; 17. an operation stope; 18. a stope return air shaft; 19. a damper.
Detailed Description
The principles and features of the present invention are described below in conjunction with the accompanying fig. 1-3, which are provided by way of example only to illustrate the present invention and not to limit the scope of the present invention.
A metal mine deep well mining pressure-equalizing ventilation regulating and controlling device comprises an air inlet system 1, an operation system 2, a simulation system 3, a ventilator frequency modulation system 4, an air quantity monitoring system 5 and an air return system 6; the system comprises an air inlet system 1, an operation system 2 and an air return system 6, wherein the air inlet system, the operation system 2 and the air return system 6 form a mine ventilation system, the simulation system 3 is arranged in an earth surface dispatching room 7, and the ventilator frequency modulation system 4 and the air quantity monitoring system 5 are arranged in a roadway of an additional mining auxiliary ventilator 8.
The air inlet system 1 comprises an air inlet shaft 9, an air leakage channel 10 communicated with the ground surface goaf and an air inlet roadway 11; the air inlet system 1 is except that the air inlet of the air inlet shaft 9 through the earth's surface, still has to lead to earth's surface collecting space area air leakage channel 10, and this air leakage channel intake is become suddenly little by suddenly receiving the influence of nature wind pressure and mining main blower 13 negative pressure, and this air leakage channel can't carry out effective management and control through modes such as airtight.
The operation system 2 comprises a stope access, a stope air inlet well, an operation stope 17, a stope return air well 18 and a stope return air roadway; the operation system 2 has no external air leakage source, fresh air flow enters from the air inlet shaft 9, enters the operation stope 17 through the stope approach and the stope air inlet shaft along the air inlet lane 11, and dirty air for flushing an operation surface enters the middle section air return lane from the stope air return shaft 18 and the stope air return lane.
The simulation system 3 comprises an original database of roadway wind resistance, network node branches, fan parameters and station parameters, and wind volume calculation and fan operation condition calculation functions.
The ventilator frequency modulation system 4 comprises a mining auxiliary ventilator 8 and a motor frequency converter 15; and the ventilator frequency modulation system 4 is used for adjusting the air volume and the air pressure of the mining auxiliary ventilator 8.
The air quantity monitoring system 5 comprises an air speed sensor 16 and system accessories, and the air speed sensor 16 is arranged in a roadway of the mining auxiliary ventilator 8; and the air quantity monitoring system 5 is used for monitoring the actual ventilation quantity of the mining auxiliary ventilator 8.
The distance between the wind speed sensor 16 and a roadway top plate is less than 1m, and the distance between the wind speed sensor and the air inlet side of the mining auxiliary ventilator 8 is 5-10 m.
Fan frequency modulation system 4 can be according to the influence of the natural wind pressure of different time quantums to ventilation system, adjusts the setting and is in operating condition of operating system 2's mining auxiliary ventilator 8, and then adjusts mining auxiliary ventilator 8's amount of wind and wind pressure size, combines amount of wind monitoring system 5 monitors mining auxiliary ventilator 8's actual air volume, carries out numerical value with the amount of wind under the preset condition and compares.
The return air system 6 comprises a return air roadway 12, a main mine ventilator 13 and a return air shaft 14; the return air system 6 is only provided with a return air shaft 14 communicated with the ground and a main return fan station, a mining main fan 13 is arranged at the main return fan station to bear the total return air of the mine, a mining auxiliary fan 8 is also arranged to bear the return air of the operation system 2, and dirty air entering the return air tunnel at the middle section is discharged out of the ground along the return air shaft 14 communicated with the ground.
As shown in fig. 1, the whole regulation and control device is composed of an air inlet system 1, an operation system 2, a simulation system 3, a ventilator frequency modulation system 4, an air volume monitoring system 5 and an air return system 6, wherein the simulation system 3 is formed by arranging and modeling according to data such as various underground roadway specifications, operation point distribution, ventilation resistance of typical roadways and the like, and comprises an original database of roadway air resistance, network node branches, fan parameters and station parameters, and an air volume calculation and fan operation condition resolving function, the simulation system 3 outputs an air volume regulation and control target value of the operation system 2 and an operation initial frequency of a mining auxiliary ventilator 8, and the mining auxiliary ventilator 8 operates according to the initial frequency and then verifies and compares an air volume monitoring value of the operation system 2 output by the air volume monitoring system 5 with the regulation and control target value.
The specific verification process is shown in fig. 2:
the air quantity regulation target value and the air quantity monitoring value of the operation system 2 are compared numerically, and if the air quantity monitoring value of the underground operation system 2 is higher than the air quantity regulation target value, the operating frequency of the mining auxiliary ventilator 8 is reduced; and if the air quantity monitoring value of the underground operation system 2 is lower than the air quantity regulation target value, increasing the operating frequency of the mining auxiliary ventilator 8 until the air quantity monitoring value of the underground operation system 2 meets the air quantity requirement under the preset condition. Namely, the motor frequency converter 15 is controlled by the ventilator frequency modulation system 4 to drive the operation system 2 to operate in a frequency conversion mode through the mining auxiliary ventilation fan 8, and the air quantity monitoring value of the operation system 2 is ensured to be 1-1.1 times of the air quantity regulation target value. Meanwhile, local area network publishing of the ventilation system operation state parameters is achieved.
As shown in fig. 3, the operation principle of the regulating device is as follows:
fresh air flow enters the underground operation middle section from an air inlet shaft 9 and an air leakage channel 10 communicated with the ground surface goaf, the fresh air flow entering from the air inlet shaft 9 enters an operation stope 17 without air leakage influence through an air inlet tunnel 11, dirty air flow for cleaning the operation stope 17 enters a return tunnel 12 along a stope return air shaft 18 and enters a return air system 6 under the action of an auxiliary mining ventilator 8 of an operation system 2, and the auxiliary mining ventilator 8 controls the return air quantity of the operation system 2; fresh air entering from a goaf air leakage channel 10 of the through-ground surface enters an operation stope 17 affected by goaf air leakage through an air inlet lane 11, dirty air flow for cleaning the operation stope 17 enters an air return lane 12 along a stope air return shaft 18, and the two dirty air flows are converged and then discharged out of the ground surface from an air return shaft 14 through an installed mining main ventilator 13.
The wind flow is guided by a wind door 19, a ground surface dispatching room 7 is arranged on the ground surface, the simulation system 3 is arranged in the ground surface dispatching room 7, and the ground surface dispatching room 7 realizes the wind volume calculation and fan operation condition calculation functions of the simulation system 3.
A regulation and control method based on the metal mine deep well mining pressure-equalizing ventilation regulation and control device is characterized by comprising the following steps of:
step 1, surveying and data arrangement are carried out on various underground roadway specifications, operation middle section arrangement, operation point distribution and ventilation resistance of a typical roadway, a simulation model is established, and a simulation system 3 of a ventilation system is formed;
step 2, collecting the air quantity calculation parameters of the operation system 2, calculating the actual air quantity required by the operation system 2, and outputting an air quantity regulation target value of the operation system 2;
step 4, the simulation system 3 outputs the operation initial frequency of the mining auxiliary ventilator 8, and after the mining auxiliary ventilator 8 operates according to the initial frequency, the wind quantity monitoring value output by the wind quantity monitoring system 5 to the operation system 2 is verified and compared with the regulation and control target value;
The method comprises the steps of calculating an air volume regulation target value of an operation system 2 according to the type and the working state of a working surface of an underground operation system 2, determining the type, the place, the installation mode and the operation mode of an additional mining auxiliary ventilator 8 by combining the distribution position of an external air leakage point on a ventilation air duct and adopting a multi-station voltage-sharing ventilation technology and simulating the air volume and the pressure distribution of the underground air duct by using a simulation system 3, and ensuring that the air pressure of the air duct of the external air leakage point of the ventilation system tends to zero pressure or positive pressure by using the air volume and the air pressure generated by the additional mining auxiliary ventilator 8 so as to achieve the purpose of changing the pressure distribution.
According to the pressure-equalizing ventilation regulating device and the pressure-equalizing ventilation regulating method for deep well mining of the metal mine, the air volume regulating target value of the operation system 2 can be calculated through the simulation system 3 according to the type and the working state of the operation surface of the underground operation system 2, and a reference value distinguishing reference is provided for the operation mode and the working condition of the additionally arranged auxiliary mine ventilator 8; according to the air volume and pressure distribution of the external air leakage point on the ventilation air duct, the air volume and the air pressure generated by the additional mining auxiliary ventilator 8 are utilized, the air pressure of the air duct where the external air leakage point of the ventilation system tends to zero pressure or positive pressure, the external air leakage is reduced, and the effective air volume rate of a mine is improved to the maximum extent; the operation condition of the mining auxiliary ventilator 8 can be adjusted according to the ventilator frequency modulation system 4, and the influence of different external air leakage quantities on the stability and reliability of the mine ventilation system due to the change of natural air pressure in different seasons and different time periods is reduced.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. The utility model provides a metal mine deep well exploitation voltage-sharing ventilation regulation and control device which characterized in that: the system comprises an air inlet system (1), an operation system (2), a simulation system (3), a ventilator frequency modulation system (4), an air quantity monitoring system (5) and an air return system (6); the mine ventilation system is characterized in that the air inlet system (1), the operation system (2) and the air return system (6) form a mine ventilation system, the simulation system (3) is arranged in an earth surface dispatching room (7), and the ventilator frequency modulation system (4) and the air quantity monitoring system (5) are arranged in a roadway of an additionally arranged mine auxiliary ventilator (8).
2. The metal mine deep well mining pressure equalizing ventilation regulating and controlling device according to claim 1, characterized in that: the air inlet system (1) comprises an air inlet shaft (9), an air leakage channel (10) communicated with the ground surface goaf and an air inlet roadway (11).
3. The metal mine deep well mining pressure equalizing ventilation regulating and controlling device according to claim 1, characterized in that: the operation system (2) comprises a stope access way, a stope air inlet well, an operation stope (17), a stope return air well (18) and a stope return air roadway.
4. The metal mine deep well mining pressure equalizing ventilation regulating and controlling device according to claim 1, characterized in that: the simulation system (3) comprises an original database of roadway wind resistance, network node branches, fan parameters and machine station parameters, and wind volume calculation and fan operation condition calculation functions.
5. The metal mine deep well mining pressure-equalizing ventilation regulating and controlling device as claimed in claim 1, characterized in that: the ventilator frequency modulation system (4) comprises a mining auxiliary ventilator (8) and a motor frequency converter (15); and the ventilator frequency modulation system (4) is used for adjusting the air volume and the air pressure of the mining auxiliary ventilator (8).
6. The metal mine deep well mining pressure equalizing ventilation regulating and controlling device according to claim 1, characterized in that: the air volume monitoring system (5) comprises an air velocity sensor (16) and system accessories, wherein the air velocity sensor (16) is arranged in a roadway of the mining auxiliary ventilator (8); and the air volume monitoring system (5) is used for monitoring the actual ventilation volume of the mining auxiliary ventilator (8).
7. The metal mine deep well mining pressure equalizing ventilation regulating and controlling device according to claim 6, characterized in that: the distance between the wind speed sensor (16) and a roadway top plate is less than 1m, and the distance between the wind speed sensor and the air inlet side of the mining auxiliary ventilator (8) is 5-10 m.
8. The metal mine deep well mining pressure-equalizing ventilation regulating and controlling device as claimed in claim 1, characterized in that: the air return system (6) comprises an air return roadway (12), a mining main ventilator (13) and an air return shaft (14).
9. The regulating and controlling method of the metal mine deep well mining pressure equalizing ventilation regulating and controlling device based on the claims 1 to 8 is characterized by comprising the following steps:
step 1, surveying and data arrangement are carried out on various underground roadway specifications, operation middle section arrangement, operation point distribution and ventilation resistance of a typical roadway, a simulation model is established, and a simulation system (3) of a ventilation system is formed;
step 2, collecting air volume calculation parameters of the operation system (2), calculating the actual air volume demand of the operation system (2), and outputting an air volume regulation and control target value of the operation system (2);
step 3, calculating the air volume and pressure distribution of the underground air duct according to the position of the air leakage point on the ventilation air duct, simulating the type, the place, the installation mode and the operation mode of the additionally arranged mining auxiliary ventilator (8) by means of the simulation system (3), and changing the pressure distribution of the external air leakage point by utilizing the air volume and the air pressure generated by the additionally arranged mining auxiliary ventilator (8);
step 4, the simulation system (3) outputs the operation initial frequency of the mining auxiliary ventilator (8), and after the mining auxiliary ventilator (8) operates according to the initial frequency, the wind quantity monitoring value of the operation system (2) output by the wind quantity monitoring system (5) is verified and compared with the regulation and control target value;
step 5, after the ventilation system normally operates, if the air quantity monitoring value of the underground operation system (2) is higher than the air quantity regulation target value, the operation frequency of the mining auxiliary ventilator (8) is reduced; and if the air quantity monitoring value of the underground operation system (2) is lower than the air quantity regulation target value, increasing the operating frequency of the mining auxiliary ventilator (8) until the air quantity value of the operation system (2) meets the air quantity requirement under the preset condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210683997.XA CN114837724A (en) | 2022-06-16 | 2022-06-16 | Pressure-equalizing ventilation regulating device and method for metal mine deep well mining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210683997.XA CN114837724A (en) | 2022-06-16 | 2022-06-16 | Pressure-equalizing ventilation regulating device and method for metal mine deep well mining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114837724A true CN114837724A (en) | 2022-08-02 |
Family
ID=82573908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210683997.XA Pending CN114837724A (en) | 2022-06-16 | 2022-06-16 | Pressure-equalizing ventilation regulating device and method for metal mine deep well mining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114837724A (en) |
-
2022
- 2022-06-16 CN CN202210683997.XA patent/CN114837724A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107288677B (en) | A kind of coalmine ventilation parameter intelligentization monitoring regulation device and its control method | |
| CN208588280U (en) | A kind of fixed Cutting Excavation Blasting cloth pore structure of opencut | |
| CN102425442B (en) | Variable-frequency regulation ventilation system and method for coal mining area | |
| CN2931792Y (en) | Piston vent system of subway station | |
| CN104265349B (en) | A kind of mine ventilation system construction method based on DIMINE softwares | |
| CN106468281B (en) | A kind of ventilated energy-saving control method for realizing the distribution according to need of underground mine underground air quantity | |
| CN105699061A (en) | Dust production simulation experiment device for heading machine cutting head and experiment method thereof | |
| CN105257335A (en) | Ground drilling well extraction pressure relief coal seam and goaf gas effect evaluation and control method | |
| CN105756697A (en) | Dynamical staged safe regulating and controlling method for mine ventilation system | |
| CN104594937A (en) | Ventilation method for use during mining of easily spontaneous combustion coal seam face | |
| CN102287216A (en) | Method for controlling coal mine gas accidents by filling nitrogen and controlling oxygen | |
| CN114837724A (en) | Pressure-equalizing ventilation regulating device and method for metal mine deep well mining | |
| CN109707432B (en) | Method for automatically converting underground main fan and auxiliary fan into multi-stage machine station ventilation system | |
| CN106351682A (en) | Ventilation system capable of quickly realizing multi-stage fan station reverse ventilation of underground metal mine | |
| CN114109465A (en) | Intelligent analysis decision-making method for mine ventilation system | |
| CN110318799B (en) | Ventilation method for long and large tunnel construction | |
| CN108169419A (en) | It is a kind of to test device and the experimental method that water seal cave depot reinjected water influences cave depot | |
| CN208858329U (en) | The automatic compensation device of well head safe control system | |
| CN211737183U (en) | Ventilation system for underground factory building in construction period | |
| CN104676814A (en) | Large underground cave depot construction network ventilation method | |
| Cao et al. | Dust removal of large cross-section tunnels: following ventilation and its adjustment strategy | |
| CN105569708B (en) | A kind of Ventilating Design Method of control stope explosion uranium ore heap radon seepage flow | |
| CN220705743U (en) | Automatic ventilation system for adjusting air quantity of underground mine circulation operation | |
| CN111119969A (en) | Ventilation system and ventilation improvement method for underground plant during construction period | |
| CN107083984A (en) | A kind of colliery central water sump whole wind pressure ventilation system and design method |
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 |