CN116735143A - Coal mine dust control simulation system - Google Patents
Coal mine dust control simulation system Download PDFInfo
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- CN116735143A CN116735143A CN202310694495.1A CN202310694495A CN116735143A CN 116735143 A CN116735143 A CN 116735143A CN 202310694495 A CN202310694495 A CN 202310694495A CN 116735143 A CN116735143 A CN 116735143A
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- 239000000428 dust Substances 0.000 title claims abstract description 128
- 238000004088 simulation Methods 0.000 title claims abstract description 61
- 239000003245 coal Substances 0.000 title claims abstract description 43
- 238000012360 testing method Methods 0.000 claims abstract description 80
- 239000002245 particle Substances 0.000 claims abstract description 61
- 238000005507 spraying Methods 0.000 claims abstract description 43
- 238000012544 monitoring process Methods 0.000 claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 239000007921 spray Substances 0.000 claims description 20
- 238000009792 diffusion process Methods 0.000 claims description 17
- 239000010865 sewage Substances 0.000 claims description 15
- 230000000087 stabilizing effect Effects 0.000 claims description 11
- 238000007599 discharging Methods 0.000 claims description 5
- 238000007664 blowing Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 4
- 230000008602 contraction Effects 0.000 claims 5
- 238000000917 particle-image velocimetry Methods 0.000 abstract description 3
- 239000003595 mist Substances 0.000 description 13
- 238000005065 mining Methods 0.000 description 6
- 230000002265 prevention Effects 0.000 description 4
- 230000006872 improvement Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000000889 atomisation Methods 0.000 description 2
- 239000002817 coal dust Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000241 respiratory effect Effects 0.000 description 2
- 208000019693 Lung disease Diseases 0.000 description 1
- 208000028571 Occupational disease Diseases 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000025518 detection of mechanical stimulus involved in sensory perception of wind Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B25/00—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
- G01M9/06—Measuring arrangements specially adapted for aerodynamic testing
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- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- Theoretical Computer Science (AREA)
- Fluid Mechanics (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The application provides a coal mine dust control simulation system, which comprises: the simulation roadway is provided with an air inlet, a test cavity and an air outlet which are sequentially communicated; the dust generator is used for conveying dust into the test cavity; the spraying unit is provided with a plurality of nozzles, the plurality of nozzles are different in size, and the nozzles are used for spraying to the test cavity; the roadway environment monitoring unit is positioned in the test cavity and is used for monitoring the environment in the roadway; the micro-nano laser granularity detector is used for testing and analyzing the particle sizes of fog drops generated by nozzles with different sizes; the phase Doppler particle detector is used for testing and analyzing the speeds of fog drops generated by nozzles with different sizes; the particle image velocimetry detector is used for shooting fog drops generated by nozzles with different sizes so as to test and analyze the speed of the fog drops. By the technical scheme provided by the application, the problem that a coal mine dust control simulation system in the prior art cannot select a proper nozzle for different dust sources can be solved.
Description
Technical Field
The application relates to the technical field of coal mine dust control, in particular to a simulation system for coal mine dust control.
Background
Along with the improvement of the mechanization degree of the coal industry in China, the problem of high-concentration dust on the mining working face is more and more serious. According to actual measurement, the dust concentration of the head-on of the fully-mechanized coal mining face is 1500-2000 mg/m under the condition of not taking any dustproof measure 3 The dust concentration of the general fully mechanized mining face can reach 4000-5000 mg/m 3 In addition, the concentration of the respiratory dust in the dust is close to 40%, and the high-concentration dust not only easily causes explosion of gas and coal dust, but also causes coal dustThe main cause of lung disease is the first.
Along with the improvement of the mechanized and automatic mining degree of the coal mine, the disease condition of the mining industry and the occupational disease is still optimistic, the economic loss is huge, and great pain is brought to patients and families. Therefore, reducing the dust concentration in the coal mine and reducing the harm of respiratory dust have become important research subjects for coal mine occupational safety and health.
Spray dust fall technology is the most commonly used dust control means in mining work surfaces. However, the existing spray dust settling device is generally in a single mode, suitable nozzles cannot be selected according to different dust sources, the on-site spray system only subjectively selects the nozzles according to practical experience, different types of atomization devices are not adopted for accurate spray dust settling, the method for measuring the atomization performance of the nozzles is single, and the measuring accuracy is not sufficient.
Disclosure of Invention
The application provides a coal mine dust prevention simulation system, which at least solves the problem that the coal mine dust prevention simulation system in the prior art cannot select proper nozzles for different dust sources.
In order to solve the above problems, the present application provides a simulation system for preventing and controlling coal dust, comprising: the simulation roadway is provided with an air inlet, a test cavity and an air outlet which are sequentially communicated; the dust generator is arranged at the air inlet and is used for conveying dust into the test cavity; the spraying unit is provided with a plurality of nozzles, the plurality of nozzles are different in size, and the nozzles are used for spraying to the test cavity; the roadway environment monitoring unit is positioned in the test cavity and is used for monitoring the environment in the roadway; the micro-nano laser granularity detector comprises a micro-nano laser granularity meter emitter and a micro-nano laser granularity meter receiver, wherein the micro-nano laser granularity meter emitter and the micro-nano laser granularity meter receiver are respectively positioned at two sides outside the simulation roadway, and the micro-nano laser granularity detector is used for testing and analyzing the particle sizes of fog drops generated by nozzles with different sizes; the phase Doppler particle detector comprises a phase Doppler particle emitter and a phase Doppler particle receiver, the phase Doppler particle emitter and the phase Doppler particle receiver are positioned on the same side outside the simulation roadway, and the phase Doppler particle detector is used for testing and analyzing the speeds of fog drops generated by nozzles with different sizes; the particle image velocimeter is used for shooting fogdrops generated by nozzles with different sizes so as to test and analyze the speeds of the fogdrops.
Further, the spraying unit comprises a conveying part and a spraying rod, the conveying part is located outside the simulation roadway, the spraying rod is vertically arranged in the test cavity, one end of the conveying part penetrates into the test cavity and is communicated with the spraying rod, the conveying part is used for supplying water to the spraying rod, and the spraying rod is provided with a plurality of nozzles.
Further, the conveying part comprises a water tank, a booster pump and a conveying pipe, the spray rod comprises a rod body and a plurality of nozzles, the rod body is vertically arranged in the test cavity, the nozzles are communicated with the rod body, the water inlet of the booster pump is communicated with the water tank, the water outlet of the booster pump is communicated with one end of the conveying pipe, and the other end of the conveying pipe is communicated with the rod body.
Further, the simulation system for preventing and treating coal mine dust further comprises a dust removing fan, a temperature adjusting device and an air conditioner, wherein the dust removing fan is arranged at the air outlet, dust after dust falling of the spraying unit is purified and discharged, the temperature adjusting device and the air conditioner are arranged in the test cavity, the temperature adjusting device is used for adjusting the temperature in the test cavity, and the air conditioner is used for blowing air into the test cavity.
Further, roadway environment monitoring unit includes dust sampler, U type barometer and pitot tube, and dust sampler, U type barometer and pitot tube all set up in the test chamber, and the dust sampler is used for gathering the dust, and U type barometer is used for detecting the atmospheric pressure value in the test chamber, and the pitot tube is used for detecting the wind speed in the test chamber.
Further, the simulation system for preventing and treating coal mine dust further comprises a fan frequency converter, wherein the fan frequency converter is electrically connected with the dust removing fan, and the fan frequency converter is used for adjusting the rotating speed of the dust removing fan.
Further, the emulation tunnel is including the entrance segment, the diffusion section, stable section, shrink section and export section that communicate in proper order, diffusion section and shrink section are conical structure, the diameter of entrance segment, the diameter of export section all is less than the diameter of stable section, the one end and the entrance segment intercommunication that the diffusion section diameter is little, the one end and the one end intercommunication of stable section that the diffusion section diameter is big, the one end and the other end intercommunication of stable section that the shrink section diameter is big, the one end and the export section intercommunication that shrink section diameter is little, the diffusion section, stable section and shrink section form test chamber jointly, the entrance section has the air intake, the export section has the air outlet.
Further, the simulation system for preventing and treating coal mine dust further comprises a sewage processor, wherein the sewage processor is communicated with the test cavity and is positioned on one side of the spraying unit close to the air outlet, and the sewage processor is used for purifying and discharging sewage generated after dust fall of the spraying unit.
Further, the coal mine dust prevention simulation system further comprises a first sliding rail and a second sliding rail, the first sliding rail and the second sliding rail are respectively arranged on two sides of the simulation roadway, the micro-nano laser particle size analyzer emitter is slidably arranged on the first sliding rail, and the micro-nano laser particle size analyzer receiver is slidably arranged on the second sliding rail.
Further, the coal mine dust prevention simulation system further comprises a controller, the dust generator, the spraying unit and the roadway environment monitoring unit are electrically connected with the controller, the controller controls the dust generator and the spraying unit to operate, and the controller is used for receiving detection information of the roadway environment monitoring unit.
By applying the technical scheme of the application, the application provides a coal mine dust control simulation system, which comprises the following components: the simulation roadway is provided with an air inlet, a test cavity and an air outlet which are sequentially communicated; the dust generator is arranged at the air inlet and is used for conveying dust into the test cavity; the spraying unit is provided with a plurality of nozzles, the plurality of nozzles are different in size, and the nozzles are used for spraying to the test cavity; the roadway environment monitoring unit is positioned in the test cavity and is used for monitoring the environment in the roadway; the micro-nano laser granularity detector comprises a micro-nano laser granularity meter emitter and a micro-nano laser granularity meter receiver, wherein the micro-nano laser granularity meter emitter and the micro-nano laser granularity meter receiver are respectively positioned at two sides outside the simulation roadway, and the micro-nano laser granularity detector is used for testing and analyzing the particle sizes of fog drops generated by nozzles with different sizes; the phase Doppler particle detector comprises a phase Doppler particle emitter and a phase Doppler particle receiver, the phase Doppler particle emitter and the phase Doppler particle receiver are positioned on the same side outside the simulation roadway, and the phase Doppler particle detector is used for testing and analyzing the speeds of fog drops generated by nozzles with different sizes; the particle image velocimeter is used for shooting fogdrops generated by nozzles with different sizes so as to test and analyze the speeds of the fogdrops. By adopting the scheme, the micro-nano laser particle size analyzer emitter and the micro-nano laser particle size analyzer receiver are respectively positioned at two sides outside the simulation roadway, so that the particle sizes of fog drops generated by nozzles with different sizes can be tested and analyzed, and the micro-nano laser particle size detector can form a linear analysis area (namely, the characteristic analysis of the linear area can be carried out on the fog drops); the phase Doppler particle emitter and the phase Doppler particle receiver are positioned on the same side outside the simulation roadway, so that the speeds of fog drops generated by nozzles with different sizes are tested and analyzed, and the phase Doppler particle detector can form a point analysis area (namely, the characteristic analysis of the point area can be carried out on the fog drops); the particle image velocimetry detector is arranged, mist drops generated by nozzles with different sizes can be shot, so that the speed of the mist drops is tested and analyzed, an analysis area of one surface (namely, the characteristic analysis of the area of the mist drops can be formed, and the characteristic analysis of points, lines and surfaces can be performed on the mist drops generated by spraying, so that the analysis is more accurate, and better nozzle type selection can be provided for different dust sources. By utilizing the coal mine dust control simulation system, the problem that the coal mine dust control simulation system in the prior art cannot select proper nozzles for different dust sources can be effectively solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:
fig. 1 shows a schematic structural diagram of a coal mine dust control simulation system provided by an embodiment of the application.
Wherein the above figures include the following reference numerals:
10. simulating a roadway; 11. an air inlet; 12. a test chamber; 13. an air outlet; 14. an inlet section; 15. a diffusion section; 16. a stabilizing section; 17. a constriction section; 18. an outlet section;
20. a dust generator;
30. a spraying unit; 31. a conveying section; 311. a water tank; 312. a pressurizing pump; 313. a delivery tube; 32. a spray rod; 321. a rod body;
40. a roadway environment monitoring unit; 41. a dust sampler; 42. a U-shaped barometer; 43. a pitot tube;
50. a micro-nano laser particle sizer emitter;
60. a micro-nano laser particle sizer receiver;
70. a dust removal fan;
80. a fan frequency converter;
91. a sewage treatment device; 92. a first slide rail; 93. and a second slide rail.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, embodiments of the application. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the application, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
As shown in fig. 1, an embodiment of the present application provides a simulation system for dust control in a coal mine, including:
the simulation roadway 10 is provided with an air inlet 11, a test cavity 12 and an air outlet 13 which are sequentially communicated;
the dust generator 20 is arranged at the air inlet 11, and the dust generator 20 is used for conveying dust into the test cavity 12;
a spray unit 30, the spray unit 30 having a plurality of nozzles, the plurality of nozzles being different in size, the nozzles being for spraying a spray to the test chamber 12;
the roadway environment monitoring unit 40 is positioned in the test cavity 12, and the roadway environment monitoring unit 40 is used for monitoring the environment in the roadway;
the micro-nano laser granularity detector comprises a micro-nano laser granularity meter emitter 50 and a micro-nano laser granularity meter receiver 60, wherein the micro-nano laser granularity meter emitter 50 and the micro-nano laser granularity meter receiver 60 are respectively positioned at two sides outside the simulation roadway 10, and the micro-nano laser granularity detector is used for testing and analyzing the particle sizes of fog drops generated by nozzles with different sizes;
the phase Doppler particle detector comprises a phase Doppler particle emitter and a phase Doppler particle receiver, the phase Doppler particle emitter and the phase Doppler particle receiver are positioned on the same side outside the simulation roadway 10, and the phase Doppler particle detector is used for testing and analyzing the speeds of fogdrops generated by nozzles with different sizes;
the particle image velocimeter is used for shooting fogdrops generated by nozzles with different sizes so as to test and analyze the speeds of the fogdrops.
By adopting the scheme, the micro-nano laser particle size analyzer emitter 50 and the micro-nano laser particle size analyzer receiver 60 are respectively positioned at two sides outside the simulation roadway 10, so that the particle size of fog drops generated by nozzles with different sizes can be tested and analyzed, and the micro-nano laser particle size detector can form a linear analysis area (namely, the characteristic analysis of the linear area can be carried out on the fog drops); the phase Doppler particle emitter and the phase Doppler particle receiver are positioned on the same side outside the simulation roadway 10, so that the speed of fog drops generated by nozzles with different sizes is tested and analyzed, and the phase Doppler particle detector can form a point analysis area (namely, the characteristic analysis of the point area can be carried out on the fog drops); the particle image velocimetry detector is arranged, mist drops generated by nozzles with different sizes can be shot, so that the speed of the mist drops is tested and analyzed, an analysis area of one surface (namely, the characteristic analysis of the area of the mist drops can be formed, and the characteristic analysis of points, lines and surfaces can be performed on the mist drops generated by spraying, so that the analysis is more accurate, and better nozzle type selection can be provided for different dust sources. By utilizing the coal mine dust control simulation system, the problem that the coal mine dust control simulation system in the prior art cannot select proper nozzles for different dust sources can be effectively solved.
Wherein, the spraying unit 30 includes conveying portion 31 and spray wand 32, and conveying portion 31 is located outside the emulation tunnel 10, and spray wand 32 vertical setting is in test chamber 12, and the one end of conveying portion 31 penetrates in the test chamber 12, and communicates with spray wand 32, and conveying portion 31 is used for supplying water for spray wand 32, and spray wand 32 has a plurality of nozzles.
The water can be transported to the spray rod 32 by the transport unit 31, and the purpose of spraying the test chamber 12 with the nozzle is achieved.
Further, the conveying part 31 includes a water tank 311, a pressurizing pump 312 and a conveying pipe 313, the spray rod 32 includes a rod body 321 and a plurality of nozzles, the rod body 321 is vertically arranged in the test cavity 12, the plurality of nozzles are all communicated with the rod body 321, a water inlet of the pressurizing pump 312 is communicated with the water tank 311, a water outlet of the pressurizing pump 312 is communicated with one end of the conveying pipe 313, and the other end of the conveying pipe 313 is communicated with the rod body 321.
The water in the water tank 311 can be supplied to the supply pipe 313 by the pressurizing pump 312, and supplied to the rod 321 through the supply pipe 313, and the nozzles are connected to the rod 321, so that the water is supplied to the nozzles.
In this embodiment, the simulation system for preventing and controlling coal mine dust further includes a dust removing fan 70, a temperature adjusting device and an air conditioner, the dust removing fan 70 is disposed at the air outlet 13, the dust removing fan 70 is used for purifying and discharging dust after dust is reduced by the spraying unit 30, the temperature adjusting device and the air conditioner are both disposed in the test cavity 12, the temperature adjusting device is used for adjusting the temperature in the test cavity 12, and the air conditioner is used for blowing air into the test cavity 12.
The dust removing fan 70 is arranged at the air outlet 13, so that dust after dust falling of the spraying unit 30 can be purified and discharged; a temperature adjusting device is arranged, so that the temperature in the test cavity 12 can be adjusted according to the test requirement; the air conditioner is arranged, and the wind speed of blowing into the test cavity 12 can be adjusted according to the test requirement.
The roadway environment monitoring unit 40 comprises a dust sampler 41, a U-shaped barometer 42 and a pitot tube 43, wherein the dust sampler 41, the U-shaped barometer 42 and the pitot tube 43 are all arranged in the test cavity 12, the dust sampler 41 is used for collecting dust, the U-shaped barometer 42 is used for detecting the air pressure value in the test cavity 12, and the pitot tube 43 is used for detecting the wind speed in the test cavity 12.
A dust sampler 41 is arranged, so that the dust type in the test cavity 12 can be collected; the U-shaped barometer 42 is arranged, so that the air pressure value in the test cavity 12 can be detected to meet the test requirement; the pitot tube 43 is provided to enable detection of wind speed within the test chamber 12 to meet testing requirements.
Specifically, the simulation system for preventing and controlling coal mine dust further comprises a fan frequency converter 80, wherein the fan frequency converter 80 is electrically connected with the dust removal fan 70, and the fan frequency converter 80 is used for adjusting the rotating speed of the dust removal fan 70.
The fan frequency converter 80 is electrically connected with the dust removal fan 70, so that the rotating speed of the dust removal fan 70 can be adjusted through the fan frequency converter 80 to meet actual demands.
In this embodiment, the simulation roadway 10 includes an inlet section 14, a diffusion section 15, a stabilizing section 16, a shrinkage section 17 and an outlet section 18 which are sequentially communicated, the diffusion section 15 and the shrinkage section 17 are in a conical structure, the diameter of the inlet section 14 and the diameter of the outlet section 18 are smaller than the diameter of the stabilizing section 16, one end of the diffusion section 15 with a small diameter is communicated with the inlet section 14, one end of the diffusion section 15 with a large diameter is communicated with one end of the stabilizing section 16, one end of the shrinkage section 17 with a large diameter is communicated with the other end of the stabilizing section 16, one end of the shrinkage section 17 with a small diameter is communicated with the outlet section 18, the diffusion section 15, the stabilizing section 16 and the shrinkage section 17 jointly form a test cavity 12, the inlet section 14 is provided with an air inlet 11, and the outlet section 18 is provided with an air outlet 13.
By adopting the arrangement mode, the diffusion section 15 is arranged, so that the gas can be timely diffused; the stable section 16 is arranged, so that the micro-nano laser particle size detector, the phase Doppler particle detector and the particle image velocimeter can analyze and test fog drops generated by the nozzle conveniently; an outlet section 18 is provided for communication with a dust extraction fan 70.
Specifically, the simulation system for preventing and treating coal mine dust further comprises a sewage processor 91, wherein the sewage processor 91 is communicated with the test cavity 12 and is positioned on one side of the spraying unit 30 close to the air outlet 13, and the sewage processor 91 is used for purifying and discharging sewage generated after dust fall of the spraying unit 30.
The sewage treatment device 91 is provided to purify and discharge sewage generated after dust fall by the spray unit 30.
In this embodiment, the simulation system for preventing and controlling coal mine dust further includes a first sliding rail 92 and a second sliding rail 93, where the first sliding rail 92 and the second sliding rail 93 are respectively disposed on two sides of the simulation roadway 10, the micro-nano laser particle size analyzer emitter 50 is slidably disposed on the first sliding rail 92, and the micro-nano laser particle size analyzer receiver 60 is slidably disposed on the second sliding rail 93.
By the arrangement, the positions of the micro-nano laser particle size analyzer emitter 50 and the micro-nano laser particle size analyzer receiver 60 can be adjusted according to actual requirements, and the universality of the coal mine dust control simulation system is improved.
Specifically, the simulation system for preventing and controlling coal mine dust further comprises a controller, the dust generator 20, the spraying unit 30 and the roadway environment monitoring unit 40 are electrically connected with the controller, the controller controls the dust generator 20 and the spraying unit 30 to operate, and the controller is used for receiving detection information of the roadway environment monitoring unit 40.
A controller is provided to control the operation of the dust generator 20 and the spraying unit 30; and also receives detection information of the roadway environment monitoring unit 40 so as to monitor the environment in the roadway.
The advantage of using this scheme is as follows:
the simulation system for preventing and treating coal mine dust not only considers the influence of underground complex environments, but also can realize multi-field coupling simulation of underground wind flow fields, water mist fields, dust fields and the like, measure the dust concentration before and after the mist fields, realize space three-dimensional measurement and analysis of mist drop fields under the influence factors of different wind flow sizes, nozzle types, positions, mist pressure and the like, and have important significance for researching the optimal parameters of mist spray dust fall and developing novel dust removing equipment.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
In the description of the present application, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present application and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present application; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present application.
The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (10)
1. A coal mine dust control simulation system, comprising:
the simulation roadway (10) is provided with an air inlet (11), a test cavity (12) and an air outlet (13) which are sequentially communicated;
a dust generator (20), wherein the dust generator (20) is arranged at the air inlet (11), and the dust generator (20) is used for conveying dust into the test cavity (12);
a spray unit (30), the spray unit (30) having a plurality of nozzles, the plurality of nozzles being of different sizes, the nozzles being for spraying into the test chamber (12);
the roadway environment monitoring unit (40), the roadway environment monitoring unit (40) is positioned in the test cavity (12), and the roadway environment monitoring unit (40) is used for monitoring the environment in the roadway;
the micro-nano laser granularity detector comprises a micro-nano laser granularity meter emitter (50) and a micro-nano laser granularity meter receiver (60), wherein the micro-nano laser granularity meter emitter (50) and the micro-nano laser granularity meter receiver (60) are respectively positioned at two sides outside the simulation roadway (10), and the micro-nano laser granularity detector is used for testing and analyzing the particle sizes of fog drops generated by the nozzles with different sizes;
the phase Doppler particle detector comprises a phase Doppler particle emitter and a phase Doppler particle receiver, the phase Doppler particle emitter and the phase Doppler particle receiver are positioned on the same side outside the simulation roadway (10), and the phase Doppler particle detector is used for testing and analyzing the speeds of fog drops generated by the nozzles with different sizes;
and the particle image velocimeter is used for shooting fogdrops generated by the nozzles with different sizes so as to test and analyze the speeds of the fogdrops.
2. The coal mine dust control simulation system according to claim 1, wherein the spraying unit (30) comprises a conveying part (31) and a spraying rod (32), the conveying part (31) is located outside the simulation roadway (10), the spraying rod (32) is vertically arranged in the test cavity (12), one end of the conveying part (31) penetrates into the test cavity (12) and is communicated with the spraying rod (32), the conveying part (31) is used for supplying water to the spraying rod (32), and the spraying rod (32) is provided with a plurality of nozzles.
3. The coal mine dust control simulation system according to claim 2, wherein the conveying part (31) comprises a water tank (311), a pressurizing pump (312) and a conveying pipe (313), the spraying rod (32) comprises a rod body (321) and a plurality of nozzles, the rod body (321) is vertically arranged in the test cavity (12), the nozzles are communicated with the rod body (321), a water inlet of the pressurizing pump (312) is communicated with the water tank (311), a water outlet of the pressurizing pump (312) is communicated with one end of the conveying pipe (313), and the other end of the conveying pipe (313) is communicated with the rod body (321).
4. The simulation system for preventing and controlling coal mine dust according to claim 1, further comprising a dust removing fan (70), a temperature adjusting device and an air conditioner, wherein the dust removing fan (70) is arranged at the air outlet (13), the dust removing fan (70) is used for purifying dust after dust falling by the spraying unit (30) and discharging the dust, the temperature adjusting device and the air conditioner are both arranged in the test cavity (12), the temperature adjusting device is used for adjusting the temperature in the test cavity (12), and the air conditioner is used for blowing air into the test cavity (12).
5. The coal mine dust control simulation system according to claim 4, wherein the roadway environment monitoring unit (40) comprises a dust sampler (41), a U-shaped barometer (42) and a pitot tube (43), the dust sampler (41), the U-shaped barometer (42) and the pitot tube (43) are all arranged in the test cavity (12), the dust sampler (41) is used for collecting dust, the U-shaped barometer (42) is used for detecting a barometric pressure value in the test cavity (12), and the pitot tube (43) is used for detecting a wind speed in the test cavity (12).
6. The coal mine dust control simulation system of claim 4, further comprising a fan frequency converter (80), wherein the fan frequency converter (80) is electrically connected to the dust removal fan (70), and wherein the fan frequency converter (80) is configured to adjust a rotational speed of the dust removal fan (70).
7. The coal mine dust control simulation system according to claim 1, wherein the simulation roadway (10) comprises an inlet section (14), a diffusion section (15), a stabilizing section (16), a contraction section (17) and an outlet section (18) which are sequentially communicated, the diffusion section (15) and the contraction section (17) are of conical structures, the diameter of the inlet section (14) and the diameter of the outlet section (18) are smaller than the diameter of the stabilizing section (16), one end of the diffusion section (15) with a small diameter is communicated with the inlet section (14), one end of the diffusion section (15) with a large diameter is communicated with one end of the stabilizing section (16), one end of the contraction section (17) with a large diameter is communicated with the other end of the stabilizing section (16), one end of the contraction section (17) with a small diameter is communicated with the outlet section (18), the diffusion section (15), the stabilizing section (16) and the contraction section (17) together form the test cavity (12), the inlet section (14) has the air inlet (11) and the air inlet (13) has the air inlet (13).
8. The coal mine dust control simulation system according to claim 1, further comprising a sewage processor (91), wherein the sewage processor (91) is communicated with the test cavity (12) and is located at one side of the spraying unit (30) close to the air outlet (13), and the sewage processor (91) is used for purifying and discharging sewage generated after dust fall of the spraying unit (30).
9. The coal mine dust control simulation system of claim 1, further comprising a first slide rail (92) and a second slide rail (93), the first slide rail (92) and the second slide rail (93) being disposed on both sides of the simulated roadway (10), the micro-nano laser particle sizer transmitter (50) being slidably disposed on the first slide rail (92), the micro-nano laser particle sizer receiver (60) being slidably disposed on the second slide rail (93).
10. The coal mine dust control simulation system according to claim 1, further comprising a controller, wherein the dust generator (20), the spraying unit (30), and the roadway environment monitoring unit (40) are electrically connected to the controller, and the controller controls operation of the dust generator (20) and the spraying unit (30), and the controller is configured to receive detection information of the roadway environment monitoring unit (40).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310694495.1A CN116735143A (en) | 2023-06-09 | 2023-06-09 | Coal mine dust control simulation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310694495.1A CN116735143A (en) | 2023-06-09 | 2023-06-09 | Coal mine dust control simulation system |
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| Publication Number | Publication Date |
|---|---|
| CN116735143A true CN116735143A (en) | 2023-09-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310694495.1A Pending CN116735143A (en) | 2023-06-09 | 2023-06-09 | Coal mine dust control simulation system |
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| Country | Link |
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| CN (1) | CN116735143A (en) |
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2023
- 2023-06-09 CN CN202310694495.1A patent/CN116735143A/en active Pending
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