CN208996754U - The on-demand ventilation device of mine and system - Google Patents
The on-demand ventilation device of mine and system Download PDFInfo
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- CN208996754U CN208996754U CN201821698426.9U CN201821698426U CN208996754U CN 208996754 U CN208996754 U CN 208996754U CN 201821698426 U CN201821698426 U CN 201821698426U CN 208996754 U CN208996754 U CN 208996754U
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Abstract
The utility model relates to mining technique fields, it is proposed a kind of on-demand ventilation device of mine, system, method, computer-readable medium and electronic equipment, it is related to mining technique field, described device includes: total blast volume acquiring unit, demographic data's acquiring unit, device data acquiring unit, environmental data acquiring unit, and, simulation unit, for carrying out simulation run according to demographic data, device data and environmental data, obtain simulating distinguished and admirable data；Control unit determines the target operating condition of the ventilation equipment of each setting according to the total blast volume of the distinguished and admirable data of the simulation, the distinguished and admirable data of the reality and the mine.The utility model is according to the total blast volume of mine, the distinguished and admirable data of reality of part and the distinguished and admirable data of simulation, determine the target operating condition of the ventilation equipment of each setting, the working condition that the ventilation equipment of each setting can be dynamically adjusted realizes the on-demand ventilation of each operating point.
Description
Technical field
The utility model relates to mining technique field more particularly to a kind of on-demand ventilation device of mine and systems.
Background technique
Ventilating management is the important component during Mine Safety in Production.Mine ventilation needs to guarantee having for underground
Enough fresh airs, enable underground work personnel safety work, will not be generated because of anoxic it is uncomfortable,
Working environment with improvement staff, and guarantee the effect of the life security of staff.Therefore, by combining mine
Actual conditions, systematically, scientifically carrying out mine ventilation trouble free service is very important, and for Mine Safety in Production
For it is significant.
In process of production, the various ventilation ginsengs such as the air quantity of mine, wind speed, relative humidity, oxygen concentration and gas density
Number is among dynamic variation, is only fully considered that the parameter in these variations is aerated, could be continuously conveyed to underground
The fresh air of necessary amount dilutes and excludes toxic and harmful gas and mine dust, the safety of support personnel and equipment.
It is especially in the mine to extremely frigid zones, staff's processing temperature is lower, oxygen content is low, only efficiently saves
Energy ground provides the distinguished and admirable of necessary amount for underground, just can guarantee the health of staff and the normal operation of equipment, mentions
The work production efficiency of high extremely frigid zones.
During mining production, the movement of personnel and the operating status of equipment all can cause mine locally and need landscape condition
Change, and ventilation scheme in the prior art can only be used to solve the optimization of local ventilation or ventilation network monitoring, it can not be real
The ventilation adjustment of each setting of existing energy-efficient mine, that is, can not achieve the on-demand ventilation of each setting of full mine.
It should be noted that the information in above-mentioned background technology part utility model is only used for reinforcing to the utility model
The understanding of background, therefore may include the information not constituted to the prior art known to persons of ordinary skill in the art.
Utility model content
The purpose of this utility model is to provide a kind of on-demand ventilation device of mine and systems, at least to a certain extent
Overcome the on-demand ventilation for needing landscape condition to realize full mine when changing in the part of mine.
Other characteristics and advantages of the utility model will be apparent from by the following detailed description, or partially by this
The practice of utility model and acquistion.
It is according to the present utility model in a first aspect, providing a kind of on-demand ventilation device of mine, described device includes: total blast volume
Acquiring unit, for obtaining the total blast volume of the mine determined according to preset ventilation plan；Demographic data's acquiring unit, for obtaining
The demographic data for taking the personnel amount of each setting of monitoring mine to obtain；Device data acquiring unit, for obtaining monitoring
The device data that the equipment state of each setting obtains；Environmental data acquiring unit, it is described each for obtaining monitoring
The environmental data that the ambient condition of setting obtains；Simulation unit, for according to the demographic data, the device data and
The environmental data carries out simulation run, obtains simulating distinguished and admirable data, wherein the environmental data includes practical distinguished and admirable data；
Control unit determines described each according to the total blast volume of the distinguished and admirable data of the simulation, the distinguished and admirable data of the reality and the mine
The target operating condition of the ventilation equipment of a setting.
In a kind of exemplary embodiment of the utility model, described control unit is also used to according to the ventilation equipment
Target operating condition controls the ventilation equipment work.
In a kind of exemplary embodiment of the utility model, described device further includes determination unit, and the determination unit is used
The working condition of mine work is determined according to mine operation the case where；And according to the working condition and preset ventilation plan
Determine the total blast volume of mine；Wherein, the ventilation plan characterizes working condition pass corresponding with the total blast volume of the mine
System.
In a kind of exemplary embodiment of the utility model, the working condition includes following any: full load mode
Condition, normal duty working condition, general load condition condition and light load conditions condition.
Second aspect according to the present utility model, provides a kind of on-demand ventilating system of mine, including ventilation equipment and on
The on-demand ventilation device of the mine stated；Wherein, the on-demand ventilation device of the mine is connect with the ventilation equipment.
In a kind of exemplary embodiment of the utility model, the ventilation equipment include blower, and the blower includes being connected
The frequency converter and fan body connect, the on-demand ventilation device of mine are connect with the frequency converter, and the mine is divulged information dress on demand
It sets according to the target operating condition of the ventilation equipment by controlling the work of fan body described in the Frequency Converter Control.
In a kind of exemplary embodiment of the utility model, the ventilation equipment further include Ventilation Structures, the mine
On-demand ventilation device is connect with the switch of the Ventilation Structures, and the on-demand ventilation device of mine is according to the ventilation equipment
Target operating condition controls the Ventilation Structures work.
In a kind of exemplary embodiment of the utility model, the system also includes: personnel positioning apparatus, for monitoring mine
The personnel amount of each setting of well obtains demographic data, and is sent to the on-demand ventilation device of the mine；Equipment state prison
Device is controlled, the equipment state for monitoring each setting obtains device data, and is sent to the mine and divulges information on demand
Device；Environment monitoring device, the ambient condition for monitoring each setting obtains environmental data, and is sent to the mine
The on-demand ventilation device of well.
In a kind of exemplary embodiment of the utility model, the on-demand ventilation device of mine and the personnel positioning are filled
Set, the device status monitoring device, the environment monitoring device and the ventilation equipment by wireline communication network and/
Or cordless communication network connection.
Technical solution provided by the embodiment of the utility model can include the following benefits:
In technical solution provided by a kind of exemplary embodiment of the utility model, the personnel for obtaining each setting,
After equipment and ambient conditions, according to the total blast volume of mine, the distinguished and admirable data of reality of part and the simulation wind by being obtained after emulation
Flow data determines the target operating condition of the ventilation equipment of each setting, and compare the prior art, can dynamically adjust each
The working condition of the ventilation equipment of a setting realizes the on-demand ventilation of each operating point.
It should be understood that above general description and following detailed description be only it is exemplary and explanatory, not
The utility model can be limited.
Detailed description of the invention
The drawings herein are incorporated into the specification and forms part of this specification, and shows and meets the utility model
Embodiment, and be used to explain the principles of the present invention together with specification.It should be evident that the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 diagrammatically illustrates a kind of block diagram of the on-demand ventilation device of mine according to the utility model embodiment；
Fig. 2 diagrammatically illustrates a kind of block diagram of the on-demand ventilating system of mine of embodiment according to the present utility model.
Specific embodiment
Illustrative embodiments are described more fully with reference to the drawings.However, illustrative embodiments can be with more
Kind form is implemented, and is not understood as limited to example set forth herein；On the contrary, thesing embodiments are provided so that the utility model
Will be more full and complete, and the design of illustrative embodiments is comprehensively communicated to those skilled in the art.Phase in figure
Same appended drawing reference indicates same or similar structure, thus the detailed description that will omit them.
Although the term of relativity, such as "upper" "lower" is used to describe a component of icon for another in this specification
The relativeness of one component, but these terms are in this manual merely for convenient, for example, with reference to the accompanying drawings described in show
The direction of example.It is appreciated that, if making it turn upside down the module overturning of icon, the component described in "upper" will
As the component in "lower".Term of other relativities, such as "high" " low " "top" "bottom" " left side " " right side " etc. are also made to have similar
Meaning.When certain structure is at other structures "upper", it is possible to refer to that certain structural integrity is formed in other structures, or refer to certain structure
It is " direct " to be arranged in other structures, or refer to that certain structure is arranged in other structures by the way that another structure is " indirect ".
Term "one", " one ", " described " to indicate there are one or more elements/component part/etc.；Term " packet
Include " and " having " to indicate the open meaning being included and refer to that the element/component part/in addition to listing waits it
Outside also may be present other element/component part/etc..
Fig. 1 diagrammatically illustrates the on-demand ventilation device of mine of the illustrative embodiments of the disclosure, with reference to Fig. 1, mine
Ventilation device 100 includes: on demand
Total blast volume acquiring unit 102, for obtaining the total blast volume of the mine determined according to preset ventilation plan.
Demographic data's acquiring unit 103, the personnel obtained for obtaining the personnel amount of each setting of monitoring mine
Data.
Device data acquiring unit 104, for obtaining the device data for monitoring the equipment state of each setting and obtaining.
Environmental data acquiring unit 105, for obtaining the environmental data for monitoring the ambient condition of each setting and obtaining.
Simulation unit 108, for demographic data, device data and the environment according to each setting of the mine of acquisition
Data carry out simulation run, obtain simulating distinguished and admirable data, wherein environmental data includes practical distinguished and admirable data.
Control unit 106 determines each operation according to the total blast volume for simulating distinguished and admirable data, practical distinguished and admirable data and mine
The target operating condition of the ventilation equipment of point.
In the on-demand ventilation device of the mine of the exemplary embodiment of the disclosure, total blast volume acquiring unit 102 obtains mine
Total blast volume, the total blast volume are the univers parameters of mine.Demographic data's acquiring unit 402, device data acquiring unit 404 and ring
Border data capture unit 406 obtains demographic data from the sensor of collector's data, device data and environmental data respectively, sets
Standby data and environmental data.
Simulation unit 108 is according to demographic data, device data and the environmental data of each setting of the mine of acquisition
Equal local parameters call three-dimensional ventilation simulation system to carry out dynamic simulation, obtain simulating distinguished and admirable data.Here, distinguished and admirable number is simulated
It is similarly local parameter in environmental data according to the distinguished and admirable data of reality for including.Later, control unit 106 is according to above-mentioned entirety
Parameter and above-mentioned local parameter formulate the work plan of the ventilation equipment of each setting, effectively take into account whole and part need
It wants, can not only reduce ventilation energy consumption, but also can ensure that the demand for security of staff and equipment.
Here, device data includes device type, device model, number of devices and the equipment running status of equipment.Mine
The type of the equipment of each setting, model, quantity and operating status all can cause shadow to the required airflow of the setting in well
It rings.
Demographic data includes the quantity of the staff of each setting in mine.The work people of each setting in mine
The quantity of member can also impact the required airflow of the setting.
Environmental data includes the parameters such as toxic harmful gas concentration, oxygen content, temperature, humidity and practical distinguished and admirable data.This
A little parameters can equally impact the required airflow of the setting.
Here, the input data of three-dimensional ventilation simulation system includes demographic data including device type, device model, sets
For quantity, the device data of equipment running status and including toxic harmful gas concentration, oxygen content, temperature, humidity and reality
The environmental data of airflow velocity, the output data of three-dimensional ventilation simulation system include the distinguished and admirable data of simulation ideally.
Later, control unit 106 obtains two by comparing the distinguished and admirable data of simulation and practical distinguished and admirable data of each operating point
The difference of person determines the target operating condition of the ventilation equipment of each operating point further according to the difference and total blast volume data.
In this way, the target operating condition of the ventilation equipment of each operating point can take into account above-mentioned factor to each operation in mine
The influence of the required airflow of point, to realize ventilation on demand.
It, can be with after the target operating condition for determining the ventilation equipment of each operating point in the exemplary embodiment of the disclosure
Selection is by manually controlling ventilation equipment work according to the target operating condition of the ventilation equipment of each operating point or being pressed by mine
Ventilation device is needed to automatically control ventilation equipment work according to the target operating condition of the ventilation equipment of each operating point.
According to an exemplary embodiment of the present disclosure, it is obtained in total blast volume acquiring unit 102 true according to preset ventilation plan
Before the total blast volume of fixed mine, it is also necessary to determine the total blast volume of mine according to preset ventilation plan.Specifically, mine is on-demand
Ventilation device 100 further includes determination unit, which is used to determine the operating condition of mine work according to the case where mine operation
Condition；And the total blast volume of mine is determined according to working condition and preset ventilation plan；Wherein, ventilation plan characterizes working condition
With the corresponding relationship of the total blast volume of mine.
Here, working condition includes full load mode condition, normal duty working condition, general load condition condition and light
Load condition condition.Mine is according to process for stoping and production plan arrangement, according to moderate working system, by mine capacity with
Intermediate node matches on time for personnel, equipment and setting, and mine ventilation is divided into above four kinds of working conditions.Wherein, root
According to the total blast volume and the corresponding relationship of time and accounting of various working conditions and mine that ventilation plan obtains are as follows:
Full load: total required airflow 650m3/ s, time 2h, accounting 8%；
Normal duty: total required airflow 560m3/ s, time 12h, accounting 50%；
General load: total required airflow 450m3/ s, time 6h, accounting 25%；
Light load: total required airflow 300m3/ s, time 4h, accounting 17%.
Simulation unit 108 is according to demographic data, device data and the environmental data of each setting of the mine of acquisition
Equal local parameters, call analogue system to offices such as demographic data, device data and the environmental datas of each setting of mine
Portion's parameter carries out dynamic simulation, obtains simulating distinguished and admirable data.Later, control unit 106 according to total blast volume acquiring unit 102 and is imitated
The output data of true unit 108 formulates the work plan of the ventilation equipment of each setting, to effectively take into account whole and part
Needs.
In the on-demand ventilation device of mine provided by the utility model exemplary embodiment, in the people for obtaining each setting
After member, equipment and ambient conditions, according to the total blast volume of mine, the distinguished and admirable data of reality of part and the simulation by being obtained after emulation
Distinguished and admirable data determine the target operating condition of the ventilation equipment of each setting, and compare the prior art, can dynamically adjust
The target operating condition of the ventilation equipment of each setting realizes the on-demand ventilation of each operating point.
The system embodiment of the utility model introduced below, including the on-demand ventilation device of mine in above-mentioned technical proposal.
As shown in Fig. 2, according to the on-demand ventilating system 200 of mine provided by the embodiment of the utility model include: ventilation equipment 202 and on
The on-demand ventilation device 100 of the mine stated, wherein the on-demand ventilation device 100 of mine is connect with ventilation equipment 202.
According to an exemplary embodiment of the present disclosure, ventilation equipment include blower and Ventilation Structures.These blowers and ventilation
Structures are mounted in mine, can be by the remotely monitoring, long-range control of the on-demand ventilation device 100 of mine.
Wherein, blower includes the frequency converter being connected and fan body, and the on-demand ventilation device 100 of mine connects with frequency converter
It connects, the on-demand ventilation device 100 of mine passes through control Frequency Converter Control fan body work according to the target operating condition of ventilation equipment
Make.The on-demand ventilation device 100 of mine is connect with the switch of Ventilation Structures, and the on-demand ventilation device of mine 100 is according to ventilation equipment
Target operating condition control Ventilation Structures work.
The blower of mine includes main fan, secondary ventilating fan and local fan, adjustable each by controlling these blowers
The air quantity of a setting.By adjusting the draught area of the adjustable Ventilation Structures of switch state of Ventilation Structures, in conjunction with
Control to blower may be implemented to divulge information on demand, meet downhole safety job requirements, reduce ventilation energy consumption.
In addition, according to an exemplary embodiment of the present disclosure, as shown in Fig. 2, the on-demand ventilating system of mine includes various sensings
Device specifically includes:
Personnel positioning apparatus 203 obtains demographic data for monitoring the personnel amount of each setting of mine, and sends
Give mine on-demand ventilation device.
Device status monitoring device 204, the equipment state for monitoring each setting obtains device data, and is sent to
The on-demand ventilation device of mine.
Environment monitoring device 205, the ambient condition for monitoring each setting obtains environmental data, and is sent to mine
On-demand ventilation device.
Here, personnel positioning apparatus 203 can be the radio frequency identification device for being mounted on each operating point, wireless sensing
Device identification device or face identification device, and be not limited thereto.Staff is being identified using radio frequency identification device
When, staff needs to wear RF tag；When using wireless sensor identification device identification staff, staff is needed
Wear wireless sensor.For example, RF tag can be arranged on special mining dress ornament, work is arranged in wireless sensor
Make in the safety cap of personnel.
Device status monitoring device 204 can be the monitoring module being arranged in the equipment of each setting.The monitoring mould
The facility informations such as the available device type of block, device model, number of devices, and the letter such as equipment running status is obtained in real time
Breath, and transmit these information to the on-demand ventilation device of the mine on ground.
Environment monitoring device 205 can be that the sensor group of each operating point is arranged in, which may include having
Poison gas concentration sensors, oxygen concentration sensor, temperature sensor, humidity sensor, air velocity transducer etc..The sensor group
The environmental datas such as available toxic and harmful gas concentration, oxygen content, temperature, humidity and practical airflow velocity, and by these rings
Border data are sent to the on-demand ventilation device of the mine on ground.
According to an exemplary embodiment of the present disclosure, the on-demand ventilation device of mine and personnel positioning apparatus 203, equipment state are supervised
Control device 204, environment monitoring device 205 and ventilation equipment 202 are connected by wireline communication network with cordless communication network.This
The shared of demographic data, device data and environmental data may be implemented in sample, these data can be transferred to earth's surface more conveniently
The on-demand ventilation device of mine in.
The exemplary embodiment of the disclosure is used in the mining production of Deqen in Yunnan Province Pu Lang copper mine.The mine
Overall higher, the 3600~4500m of height above sea level of gesture, belongs to cold temperate climate, and processing temperature is lower, and oxygen content is low, energy saving in order to balance
It is required that and personnel and safety equipment requirement and use the exemplary embodiment of the disclosure, energy-efficient can be provided for underground
Enough is distinguished and admirable, the safety of support personnel and equipment, improves the work production efficiency of extremely frigid zones.
The on-demand ventilating system of the mine 200 and above-mentioned mine on-demand ventilation device 100 technical characteristic having the same and
Principle, above content have been described in detail, and details are not described herein again.
In the on-demand ventilating system of mine provided by the utility model exemplary embodiment, in the people for obtaining each setting
After member, equipment and ambient conditions, according to the total blast volume of mine, the distinguished and admirable data of reality of part and the simulation by being obtained after emulation
Distinguished and admirable data determine the target operating condition of the ventilation equipment of each setting, and compare the prior art, can dynamically adjust
The target operating condition of the ventilation equipment of each setting realizes the on-demand ventilation of each operating point.
Those skilled in the art are considering specification and after practicing utility model disclosed herein, will readily occur to practical
Novel other embodiments.This application is intended to cover any variations, uses, or adaptations of the utility model, these
Variations, uses, or adaptations follow the general principle of the utility model and including undocumented skills of the utility model
Common knowledge or conventional techniques in art field.The description and examples are only to be considered as illustrative, the utility model
True scope and spirit are indicated by the following claims.
It should be understood that the utility model is not limited to the accurate knot for being described above and being shown in the accompanying drawings
Structure, and various modifications and changes may be made without departing from the scope thereof.The scope of the utility model is only wanted by appended right
It asks to limit.
Claims (9)
1. a kind of on-demand ventilation device of mine, which is characterized in that described device includes:
Total blast volume acquiring unit, for obtaining the total blast volume of the mine determined according to preset ventilation plan；
Demographic data's acquiring unit, the demographic data obtained for obtaining the personnel amount of each setting of monitoring mine；
Device data acquiring unit, for obtaining the device data for monitoring the equipment state of each setting and obtaining；
Environmental data acquiring unit, for obtaining the environmental data for monitoring the ambient condition of each setting and obtaining；
Simulation unit is obtained for carrying out simulation run according to the demographic data, the device data and the environmental data
To the distinguished and admirable data of simulation, wherein the environmental data includes practical distinguished and admirable data；
Control unit determines institute according to the total blast volume of the distinguished and admirable data of the simulation, the distinguished and admirable data of the reality and the mine
State the target operating condition of the ventilation equipment of each setting.
2. the apparatus according to claim 1, which is characterized in that described control unit is also used to according to the ventilation equipment
Target operating condition control ventilation equipment work.
3. the apparatus of claim 2, which is characterized in that described device further includes determination unit, the determination unit
For determining the working condition of mine work according to the case where mine operation；And according to the working condition and preset draft gauge
Draw the total blast volume for determining mine；Wherein, it is corresponding with the total blast volume of the mine to characterize the working condition for the ventilation plan
Relationship.
4. device according to claim 3, which is characterized in that the working condition includes following any: full load work
Condition condition, normal duty working condition, general load condition condition and light load conditions condition.
5. a kind of on-demand ventilating system of mine, which is characterized in that pressed including ventilation equipment and mine as claimed in claim 4
Need ventilation device；
Wherein, the on-demand ventilation device of the mine is connect with the ventilation equipment.
6. system according to claim 5, which is characterized in that the ventilation equipment include blower, and the blower includes phase
The frequency converter and fan body of connection, the on-demand ventilation device of mine are connect with the frequency converter, and the mine is divulged information on demand
Device is according to the target operating condition of the ventilation equipment by controlling the work of fan body described in the Frequency Converter Control.
7. system according to claim 6, which is characterized in that the ventilation equipment further include Ventilation Structures, the mine
The on-demand ventilation device of well is connect with the switch of the Ventilation Structures, and the on-demand ventilation device of mine is according to the ventilation equipment
Target operating condition control Ventilation Structures work.
8. system according to claim 7, which is characterized in that the system also includes:
Personnel positioning apparatus obtains demographic data for monitoring the personnel amount of each setting of mine, and is sent to described
The on-demand ventilation device of mine；
Device status monitoring device, the equipment state for monitoring each setting obtains device data, and is sent to institute
State the on-demand ventilation device of mine；
Environment monitoring device, the ambient condition for monitoring each setting obtains environmental data, and is sent to the mine
The on-demand ventilation device of well.
9. system according to claim 8, which is characterized in that the on-demand ventilation device of mine and the personnel positioning fill
Set, the device status monitoring device, the environment monitoring device and the ventilation equipment by wireline communication network and/
Or cordless communication network connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821698426.9U CN208996754U (en) | 2018-10-19 | 2018-10-19 | The on-demand ventilation device of mine and system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821698426.9U CN208996754U (en) | 2018-10-19 | 2018-10-19 | The on-demand ventilation device of mine and system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109098748A (en) * | 2018-10-19 | 2018-12-28 | 中国恩菲工程技术有限公司 | The on-demand ventilation device of mine, system and method, medium and electronic equipment |
| CN112069844A (en) * | 2020-08-27 | 2020-12-11 | 北京市汽车解体厂有限公司 | Ventilation method, ventilation device, electronic equipment and computer readable storage medium |
| CN113931699A (en) * | 2021-10-12 | 2022-01-14 | 湖北宜化江家墩矿业有限公司 | Downhole ventilation safety comprehensive early warning method based on WebGIS platform |
-
2018
- 2018-10-19 CN CN201821698426.9U patent/CN208996754U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109098748A (en) * | 2018-10-19 | 2018-12-28 | 中国恩菲工程技术有限公司 | The on-demand ventilation device of mine, system and method, medium and electronic equipment |
| CN109098748B (en) * | 2018-10-19 | 2024-04-05 | 中国恩菲工程技术有限公司 | Mine on-demand ventilation device, system and method, medium and electronic equipment |
| CN112069844A (en) * | 2020-08-27 | 2020-12-11 | 北京市汽车解体厂有限公司 | Ventilation method, ventilation device, electronic equipment and computer readable storage medium |
| CN112069844B (en) * | 2020-08-27 | 2024-03-01 | 北京市汽车解体厂有限公司 | Ventilation method, ventilation device, electronic equipment and computer readable storage medium |
| CN113931699A (en) * | 2021-10-12 | 2022-01-14 | 湖北宜化江家墩矿业有限公司 | Downhole ventilation safety comprehensive early warning method based on WebGIS platform |
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