CN209447353U - A kind of experiment and tutoring system for simulating down-hole coal excavation tunnel fully mechanized mining overall process - Google Patents
A kind of experiment and tutoring system for simulating down-hole coal excavation tunnel fully mechanized mining overall process Download PDFInfo
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- CN209447353U CN209447353U CN201821846846.7U CN201821846846U CN209447353U CN 209447353 U CN209447353 U CN 209447353U CN 201821846846 U CN201821846846 U CN 201821846846U CN 209447353 U CN209447353 U CN 209447353U
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Abstract
The utility model belongs to underground coal mine full-scope simulation and teaching field, more particularly to a kind of experiment and tutoring system for simulating down-hole coal excavation tunnel fully mechanized mining overall process, solve the problems, such as that China lacks the experiment and tutoring system of covering coal mining overall process, the simulation tunnel being arranged including totally-enclosed glass fiber reinforced plastic house and in totally-enclosed glass fiber reinforced plastic house, hydraulic support, electrical haulage shearer, drag conveyor, artificial coal wall and the totally-enclosed coal seam liquefaction experimental provision being independently arranged and totally-enclosed coal bed gas dramn experiment device at present.The utility model is capable of the experimental real-training safety of effective guarantee student, saves a large amount of practice funds, student can carry out the operation of fully-mechanized mining equipment in person, and teacher can carry out the research of various projects, and high-efficient culture goes out the talent that theory and practice combines.
Description
Technical field
The utility model belongs to underground coal mine full-scope simulation and teaching field, and in particular to a kind of simulation down-hole coal excavation lane
The experiment and tutoring system of road fully mechanized mining overall process.
Background technique
External each coal excavation apparatus manufacturer only has equipment factory parameter testing at present, not right on emulated artificial coal wall
False coal wall is had in the detection of equipment, only middle coal Zhangjiakou Mei Ji Co., Ltd, the country, which mainly studies drag conveyor
Overall performance index, to coalcutter and bracket research it is very few；Because coalcutter cutting is at high cost, it is not able to satisfy student's production practice
Requirement；Zhangjiakou is scrapper conveyor professional production factory, temporarily not on coalcutter spraying firing dust and cooling system study；It adopts
Core equipment of the coal machine as working face can not carry out quantitative structural stress analysis and Reliability Analysis Research；Simultaneously should
False coal wall does not form tunnel and the fully-mechanized mining working of complete closure, not can be carried out safe ventilation monitoring；There is no built-in pipe
Line and bedding architecture not can be carried out gas, technique study is put in the pumping spy of water；Furthermore to the driving method of coalcutter, structure and machine
Reason lacks pressure and the Coal Green exploitation etc. of safety in production, coal and studies；Closing coal seam is not built, cannot study ground
The gasification in lower coal seam.
It is safe, intensive, be efficiently coal mine developing direction as well one side produces being continuously increased for ten million ton of mine per year, peace
It is the most important thing of coal mine working entirely, student has influenced Safety of Coal Mine Production to mine practice, and coal mine is not received in school substantially
The practice task of student；For culture, student that is theoretical and actually combining can be complete in simulation tunnel fully-mechanized mining working of the invention
The experimental real-training requirement of full up podolite life, the method for making student understand the various equipment of working face in the pit and its use are advised with operation
Journey, the beating one's brains of training student, manipulative ability enhance the awareness of safety and job responsibility consciousness of student.While in order to protect the mankind
The environment depended on for existence carries out research and probe to the difficult technology in the coal mining of China's main energy sources, finds scientific basis
Realize the effectively and reasonably utilization of resource；For the lasting exploit for realizing coal, which mainly studies the construction in emulation coal seam；It goes out
Dirt and cooling effect；To the forces testing of different coal, fully-mechanized mining equipment is found for the optimal parameter selection of different coal, structure
Digitlization, intelligentized control method are realized in design, final to realize that fully-mechanized mining working is unattended；Coal bed gas, shale gas before seam mining
Effective extraction and utilization, reach energy-efficient effect；For the matching of different operating face wind speed, Gas Outburst in safe ventilation
Intelligent treatment, the key technologies such as coal gasification are final to realize that coal resources rationally utilize.
As it can be seen that one kind can simulate the experiment of underground fully mechanized mining overall process and tutoring system and just seem of crucial importance.
Summary of the invention
The utility model to solve the above-mentioned problems, provides a kind of experiment for simulating down-hole coal excavation tunnel fully mechanized mining overall process
And tutoring system.The utility model is achieved by the following technical solution: a kind of simulation down-hole coal excavation tunnel fully mechanized mining overall process
Experiment and tutoring system, including totally-enclosed glass fiber reinforced plastic house and the simulation tunnel being arranged in totally-enclosed glass fiber reinforced plastic house, hydraulic
Bracket, electrical haulage shearer, drag conveyor, artificial coal wall and the totally-enclosed coal seam liquefaction experimental provision being independently arranged and complete
Coal bed gas dramn experiment device is closed, for the length in hydraulic support edge simulation tunnel to setting, people is being close in electrical haulage shearer setting
In the simulation tunnel of work coal wall, the operation of electrical haulage shearer and being directed on drag conveyor is completed, and is arranged on hydraulic support
There are firedamp sensor, dust detection controller, bionical high-definition camera and spray system, is respectively set in simulation tunnel two sides
There are perpendicular upper crossheading and lower crossheading, upper crossheading end support, upper crossheading for supporting are provided in upper crossheading region
Advance support and anchor pole anchor net combined supporting, upper crossheading are provided with air quantity and water console far from the side of hydraulic support, drill
Display screen and mining draft fan are provided with inbreak demonstration area, intelligent control platform and equipment train and track in lower crossheading region.
Further, artificial coal wall is arranged in rectangle, for the cutting resistance for studying coal wall, coal wall is hard by different Pu Shi
F=2.5, f=3 and f=4 is spent to build；It separately sets the artificial coal petrography wall of the artificial coal wall of coal bed gas extraction, leting speeper and shale gas extraction is artificial
Palisades, the Polodyakonov coefficient of the artificial coal petrography wall of coal bed gas extraction are f=2.5, and the Polodyakonov coefficient of the artificial coal petrography wall of leting speeper is f=6, page
The Polodyakonov coefficient of the artificial palisades of rock gas extraction is f=6~8.
Further, the total specification of artificial coal wall is long 30 meters, 3 meters wide, 2.5 meters high, the production material of artificial coal wall
Material includes coal, concrete, leavening agent and adhesive, and artificial coal wall, which corresponds to zones of differential stiffness staged and layered is respectively adopted, to be poured
Mode, when pouring every layer with a thickness of 100 millimeters, pour within every 24 hours one layer and in time to pouring layer carry out showering curing, position
In be arranged at intervals in artificial coal wall multiple groups for monitoring pressure and vibrating sensor, simulation is additionally provided in artificial coal wall
The preheating embedding line of the preheating embedding line of structure stratification and joints development, the artificial coal petrography wall of leting speeper and the artificial palisades of shale gas extraction is handed over
Mistake is laid.
Further, horizontally disposed top plate increased pressure frame is connected on hydraulic support, interval is solid on top plate increased pressure frame
Surely there are multiple vertically disposed hydraulic cylinders.
Preferably, totally-enclosed glass fiber reinforced plastic house uses steel truss structure, shingle is movable panel and can open pass
It closes, glass reinforced plastic uses polycarbonate plate material, and impact force is not less than 3kg/c ㎡ and specific gravity is not less than 1.34g/cm3, simulated implementation
The test of mine ventilation and various gases.
Wherein, totally-enclosed glass fiber reinforced plastic house is provided with Y type ventilating door close to the end position of upper crossheading in simulation tunnel.
The utility model has the beneficial effect that compared with prior art
The utility model uses electrical haulage shearer, drag conveyor, the hydraulic support of technical grade, fully meets student and exists
The field research of underground coal mine fully-mechanized mining working and operation efficiently solve student's theory and the practical shortcoming mutually to disconnect；Construction
Artificial coal wall, upper and lower crossheading, entire tunnel is completely enclosed, studies the rule of ventilation, the true production for completing working face, peace
Entirely, it divulges information, convey, detection overall process, meeting the needs of practising method；Various sensors and visualization device are installed, it can be into
The research of row forces testing, device parameter type selecting and intelligent unattended technology, meets the scientific research demand of teacher；Special construction
Artificial coal seam and artificial rock stratum allow student to draw out methane the practical operation with leting speeper；It is full using totally enclosed true coal bunker
Sufficient teacher is gasified to coal or liquefied research.Compared with prior art, which realizes student experimenting real training
Safety, saves a large amount of practice funds, student can carry out the operation of fully-mechanized mining equipment in person, and teacher can carry out grinding for various projects
Study carefully, high-efficient culture goes out the talent that theory and practice combines.
Detailed description of the invention
Fig. 1 is the system structure diagram of the utility model；
Fig. 2 is the structural schematic diagram of artificial coal wall in Fig. 1；
Fig. 3 is the structural representation side view of the artificial coal wall of Fig. 2；
Fig. 4 is that the utility model goes out the structural schematic diagram of dirt spraying system；
Fig. 5 is that the utility model fully-mechanized mining working gas regulates and controls schematic diagram；
Fig. 6 is the structural schematic diagram of hydraulic support in the utility model.
In figure: 1- hydraulic support, 2- electrical haulage shearer, 3- drag conveyor, the totally-enclosed glass fiber reinforced plastic house of 4-, 5- gas pass
Sensor, 6- dust detect controller, the artificial coal wall of 7-, 8- pressure and vibrating sensor, 9-Y type ventilating door, and 10- simulates tunnel,
The upper crossheading end support of 11-, the upper crossheading advance support of 12-, 13- anchor pole anchor net combined supporting, the upper crossheading of 14-, 15- air quantity and water
Measure console, 16- demonstration screen, crossheading under 17-, 18- is mining draft fan, the artificial palisades of 19- shale gas extraction, 20- leting speeper
Artificial coal wall, the totally-enclosed coal seam liquefaction experimental provision of 21-, the artificial coal wall of 22- coal bed gas extraction, the totally-enclosed coal bed gas extraction of 23-
Experimental provision, 24- intelligent control platform, 25- inbreak demonstration area, 26- equipment train and track, the bionical high-definition camera of 27-,
28- spray system, 29- preheating embedding line, 30- hydraulic cylinder, 31- top plate increased pressure frame.
Specific embodiment
A pair the utility model is further elaborated referring to Fig.1~6, a kind of simulation down-hole coal excavation tunnel fully mechanized mining overall process
Experiment and tutoring system, including totally-enclosed glass fiber reinforced plastic house 4 and the simulation tunnel 10 being arranged in totally-enclosed glass fiber reinforced plastic house 4, liquid
Pressure bracket 1, electrical haulage shearer 2, drag conveyor 3, artificial coal wall 7 and the totally-enclosed coal seam liquefaction experiment dress being independently arranged
Set 21 and totally-enclosed coal bed gas dramn experiment device 23, hydraulic support 1 along simulation tunnel 10 length to setting, electrical haulage shearer
2 are arranged in the simulation tunnel 10 for being close to artificial coal wall 7, the operation of electrical haulage shearer 2 and are directed at complete on drag conveyor 3
At being provided with firedamp sensor 5, dust detection controller 6, bionical high-definition camera 27 and spray system on hydraulic support 1
28, it is respectively arranged with perpendicular upper crossheading 14 and lower crossheading 17 in simulation 10 two sides of tunnel, is arranged in upper 14 region of crossheading
There are the upper crossheading end support 11 for supporting, upper crossheading advance support 12 and anchor pole anchor net combined supporting 13, upper crossheading 14 is remote
Side from hydraulic support 1 is provided with air quantity and water console 15, demonstration screen 16 and mining draft fan 18, lower 17th area of crossheading
Inbreak demonstration area 25, intelligent control platform 24 and equipment train and track 26 are provided in domain.
Artificial coal wall 7 is arranged in rectangle, for the cutting resistance for studying coal wall, by coal wall press different Polodyakonov coefficient f=2.5,
F=3 and f=4 are built；Separately set the artificial coal wall 22 of coal bed gas extraction, the artificial coal petrography wall 20 of leting speeper and the artificial palisades of shale gas extraction
19, the Polodyakonov coefficient of the artificial coal wall 22 of coal bed gas extraction is f=2.5, and the Polodyakonov coefficient of the artificial coal petrography wall 20 of leting speeper is f=6, page
The Polodyakonov coefficient of the artificial palisades 19 of rock gas extraction is f=6~8.The artificial total specification of coal wall 7 is 30 meters long, 3 meters wide, high
2.5 meters, the making material of artificial coal wall 7 includes coal, concrete, leavening agent and adhesive, the corresponding different hardness of artificial coal wall 7
The mode that staged and layered pours is respectively adopted in region, when pouring every layer with a thickness of 100 millimeters, pour within every 24 hours one layer and in time
To pouring layer carry out showering curing, be arranged at intervals in artificial coal wall 7 multiple groups for monitoring pressure and vibrating sensor
8, the preheating embedding line 29 of model configuration stratification and joints development, the artificial coal petrography wall 20 of leting speeper are additionally provided in artificial coal wall 7
It is laid staggeredly with the preheating embedding line 29 of the artificial palisades 19 of shale gas extraction.Horizontally disposed top plate is connected on hydraulic support 1 to add
Press box frame 31 is fixed at intervals with multiple vertically disposed hydraulic cylinders 30 on top plate increased pressure frame 31.Totally-enclosed glass fiber reinforced plastic house 4 is adopted
With steel truss structure, shingle be movable panel and can either on or off, glass reinforced plastic uses polycarbonate plate material, impact force
Not less than 3kg/c ㎡ and specific gravity is not less than 1.34g/cm3, the test of simulated implementation mine ventilation and various gases.Totally-enclosed glass
Glass steel room 4 is provided with Y type ventilating door 9 close to the end position of upper crossheading 14 in simulation tunnel 10.Using top plate increased pressure frame 31
With the Multi-cylinder plane press perpendicular technology of hydraulic cylinder 30, can quantitative study top plate rise effect to the pressure of different coals quality, solution
Certainly on the selection of coalcutter cutting power and roller pick arrangement.
Embodiment:
Fully-mechanized mining working can be built to ground using the utility model experiment and tutoring system, solve student underground
The security risk of practice, using model MG160/375-WD electrical haulage shearer 1, model SGZ630/150 drag conveyor
3 and model ZY6800/14/31 hydraulic support 1 is used as fully-mechanized mining working Backup system.Crossheading 14 is under on synchronous construction
Crossheading 17, entire tunnel 10 of simulating is completely enclosed, to true reappearance coal mining overall process, meets the needs of practising method；Installation
Various sensors, such as firedamp sensor 5, dust detection controller 6, pressure and vibrating sensor 8；Visualization device is installed, such as
Demonstration screen, inbreak demonstration area 25 can be used in the scientific research demand for meeting teacher.Except studying in addition to practising method, it can also carry out electricity and lead
Draw the training of the work posts such as 1 controllers of 2 driver of coalcutter, 3 driver of drag conveyor and hydraulic support.
In the manufacturing process for carrying out artificial coal wall 7, by the Shanxi coal seam most representative Datong Coal-field 4#, same
It is the entity coal cinder of 150 × 150 × 150mm that coal Tashan Mountain fully-mechanized mining working different location, which takes specification, carries out joint, stratification, resistance to compression
Intensity, tensile strength test；Data and analysis report based on entity coal cinder, selection assemble material, such as coal, concrete, fluffy
Loose agent and adhesive etc., 150 × 150 × 150mm simulation coal cinder manufactured experimently under different materials conditions of mixture ratios carry out mechanical performance survey
Examination；According to experimental result, summarizes and establish the detection method of artificial coal wall 7 and different materials proportion body under complete different hardness
System；According to coal seam developmental state, develop the artificial coal wall 7 of different hardness assembles technique；Pre-buried pressure and vibration in artificial coal wall 7
Dynamic sensor 8 carries out reasonable structure design convenient for the performance parameter of test point haulage shearer 2；By being ground to entity coal
Study carefully, to the formula of artificial 7 experimental applications different materials of coal wall, find different pouring technologies, break through artificial coal wall 7 joint,
Stratification realizes live cutting, achievees the purpose that artificial 7 material of coal wall recycling for energy conservation and environmental protection.
The artificial total specification of coal wall 7 is divided to be 30 meters long, 3 meters wide, 2.5 meters high using the method that hardness is segmented
Layer pours, and 10 meters of left Duan Weichang and hardness are the artificial coal wall 22 of coal bed gas extraction of f=2.5, and middle section is long 8 meters and hardness is f
The artificial coal wall 20 of=3 leting speeper, right section is long 12 meters and hardness is the artificial palisades of shale gas extraction of f=4.0.Artificial coal wall 7
Construction technology specifically: artificial coal wall 7 is individually segmented after the completion of simulate tunnel working face, placement layer by layer, every layer of 100mm,
One layer is poured within every 24 hours, keeps water drenching to dry in the shade, and fossil pressure and vibrating sensor 8, final molding after hardening.It is led by electricity
Material after drawing 2 cutting of coalcutter is to achieve the effect that save the cost, should be able to reuse conducive to environmental protection.
By the research to artificial coal wall 7, artificial coal wall and rammell are piled up in laboratory, stratification and joints development use
The method of steel pipe buried in advance, gas inject preheating embedding line 29 using CO2 pressure.Pass through torque and resistance analysis software control probing speed
Degree transmits and checks the structure change of rock stratum using directional drilling Visualized management system, feeds back with brill with measuring technique
The depth of drilling is carried out the extraction and utilization of coal bed gas, shale gas using high-pressure jet or electromagnetic wave fracturing technique, realizes energy conservation
The effective use of environmental protection and the energy.The practical operation practical training project that the artificial coal wall 22 of coal bed gas extraction is able to carry out gas drainage includes:
Carry out the practical operation real training of gas drainage pump safety inspection；Carry out the practical operation real training of water-ring vacuum pump safety operation；Carry out gas
The practical operation real training of extraction borehole construction safety inspection；Carry out the practical operation real training of drilling construction safety operation；Sealing of hole is carried out to grasp safely
The practical operation real training of work；Carry out the practical operation real training of detection of negative pressure safety operation in pipeline.The artificial coal wall 20 of leting speeper is able to carry out
Practical operation practical training project includes: the practical operation real training for carrying out drilling machine test running safety operation；Carry out the practical operation real training of aperture safety operation；
Carry out the practical operation real training of drilling safe operation；Discharge water the practical operation real training of safety operation；Carry out casing installation and sealing of hole safety
The practical operation real training of operation.
A large amount of dusts, the utility model are generated unavoidably during electrical haulage shearer 2 carries out cutting to artificial coal wall 7
Equipped with spray system 28.By generating the test and research of dust mechanism in cutting course to electrical haulage shearer 2, finds and cut
The matching relationship for cutting speed, hauling speed finds the best angle of pick arrangement, detects the number that controller 6 measures by dust
According to controlling spray system 28 using air quantity and water console 15 and carry out the dirt that goes out.Wherein, spray system 28 is arranged in hydraulic support
Atomizer on 1 and to automatically control, by achieving the effect that water-saving and environmental protection using the spray-water after atomization.
In addition, the utility model by the hydraulic supports 1 of the various sensors, electro-hydraulic control installed on electrical haulage shearer 2,
The drag conveyor 3 of frequency control, according to the various data of cutting difference coal quality real-time Transmission and for the bionical height of working face
The video that clear camera 27 transmits, is analyzed and processed using software by intelligent control platform 24, generates virtual working face
Surface model realizes artificial remote intervention, reaches the unattended of simulation working face, ensure that the safety of fully-mechanized mining working personnel.
The utility model will simulate fully-mechanized mining working and be arranged in totally-enclosed glass fiber reinforced plastic house 4, and be equipped with intelligent gas monitoring
System and intelligent Wind Speed sensor-based system regulate and control mining draft fan 18, can be after gas adds up to a certain concentration to it
It is effectively dispelled, to realize the energy-saving run of mining draft fan 18；When gas density is higher than 0.8%, by air quantity and
Water console 15 automatically opens Y type ventilating door 9, realizes the Y type ventilation of fully-mechanized mining working.Totally-enclosed glass fiber reinforced plastic house 4 uses
Steel truss structure, glass room top plate are movable panel, openable closing；Glass reinforced plastic uses polycarbonate plate, and impact force is general
200 times of logical glass, it is 8 times stronger than acrylic board, almost without the risk of fracture；Daylighting is splendid, and light transmittance is up to 75-89%,
It can compare favourably with glass；In subzero 30 degree to 130 degree of test scope, the quality comparisons such as deformation will not be caused；Research sealing
Isolation technology is carried out the research of air-liquid to entity coal sample coal using intelligence control system, finds gasification or the liquid of different coals quality
Change point, reduces the cost of winning of coal, realize the reasonable utilization of coal resources.
Claims (6)
1. a kind of experiment and tutoring system for simulating down-hole coal excavation tunnel fully mechanized mining overall process, it is characterised in that: including totally-enclosed glass
Glass steel room (4) and the simulation tunnel (10) being arranged in totally-enclosed glass fiber reinforced plastic house (4), hydraulic support (1), electrical haulage shearer
(2), drag conveyor (3), artificial coal wall (7) and the totally-enclosed coal seam being independently arranged are liquefied experimental provision (21) and totally-enclosed
Coal bed gas dramn experiment device (23), to setting, electrical haulage shearer (2) is set the length of hydraulic support (1) edge simulation tunnel (10)
It sets in the simulation tunnel (10) for being close to artificial coal wall (7), the operation of electrical haulage shearer (2) and is directed at drag conveyor
(3) it is completed on, firedamp sensor (5), dust detection controller (6), bionical high-definition camera is provided on hydraulic support (1)
(27) and spray system (28) perpendicular upper crossheading (14) and lower crossheading, are respectively arranged in simulation tunnel (10) two sides
(17), be provided in upper crossheading (14) region the upper crossheading end support (11) for supporting, upper crossheading advance support (12) and
Anchor pole anchor net combined supporting (13), upper crossheading (14) are provided with air quantity and water console far from the side of hydraulic support (1)
(15), (16) and mining draft fan (18) are shielded in demonstration, and inbreak demonstration area (25), intelligence control are provided in lower crossheading (17) region
Platform (24) processed and equipment train and track (26).
2. a kind of experiment and tutoring system for simulating down-hole coal excavation tunnel fully mechanized mining overall process according to claim 1, special
Sign is: artificial coal wall (7) is arranged in rectangle, for the cutting resistance for studying coal wall, by coal wall press different Polodyakonov coefficient f=
2.5, f=3 and f=4 are built；Separately set the artificial coal petrography wall (20) of the artificial coal wall of coal bed gas extraction (22), leting speeper and shale gas extraction
Artificial palisades (19), the Polodyakonov coefficient of the artificial coal wall of coal bed gas extraction (22) are f=2.5, the artificial coal petrography wall (20) of leting speeper it is general
Family name's hardness is f=6, and the Polodyakonov coefficient of the artificial palisades of shale gas extraction (19) is f=6~8.
3. a kind of experiment and tutoring system for simulating down-hole coal excavation tunnel fully mechanized mining overall process according to claim 2, special
Sign is: the artificial total specification of coal wall (7) is long 30 meters, 3 meters wide, 2.5 meters high, the making material packet of artificial coal wall (7)
Coal, concrete, leavening agent and adhesive are included, the corresponding zones of differential stiffness of artificial coal wall (7) is respectively adopted staged and layered and pours
Mode, when pouring every layer with a thickness of 100 millimeters, pour within every 24 hours one layer and in time to pouring layer carry out showering curing, position
Be arranged at intervals in the artificial coal wall (7) multiple groups for monitoring pressure and vibrating sensor (8), in artificial coal wall (7) and also
It is provided with the preheating embedding line (29) of model configuration stratification and joints development, the artificial coal petrography wall (20) of leting speeper and shale gas extraction people
The preheating embedding line (29) of work palisades (19) is laid staggeredly.
4. a kind of experiment and tutoring system for simulating down-hole coal excavation tunnel fully mechanized mining overall process according to claim 1, special
Sign is: horizontally disposed top plate increased pressure frame (31) is connected on hydraulic support (1), interval is solid on top plate increased pressure frame (31)
Surely there are multiple vertically disposed hydraulic cylinders (30).
5. a kind of experiment and tutoring system for simulating down-hole coal excavation tunnel fully mechanized mining overall process according to claim 1, special
Sign is: totally-enclosed glass fiber reinforced plastic house (4) use steel truss structure, shingle be movable panel and can either on or off, glass
Steel uses polycarbonate plate material, and impact force is not less than 3kg/c ㎡ and specific gravity is not less than 1.34g/cm3, simulated implementation mine is logical
The test of wind and various gases.
6. a kind of experiment and tutoring system for simulating down-hole coal excavation tunnel fully mechanized mining overall process according to claim 5, special
Sign is: totally-enclosed glass fiber reinforced plastic house (4) is provided with Y type ventilating door in end position of simulation tunnel (10) close to upper crossheading (14)
(9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821846846.7U CN209447353U (en) | 2018-11-10 | 2018-11-10 | A kind of experiment and tutoring system for simulating down-hole coal excavation tunnel fully mechanized mining overall process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821846846.7U CN209447353U (en) | 2018-11-10 | 2018-11-10 | A kind of experiment and tutoring system for simulating down-hole coal excavation tunnel fully mechanized mining overall process |
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| CN209447353U true CN209447353U (en) | 2019-09-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109448484A (en) * | 2018-11-10 | 2019-03-08 | 山西能源学院 | A kind of experiment and tutoring system for simulating down-hole coal excavation tunnel fully mechanized mining overall process |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109448484A (en) * | 2018-11-10 | 2019-03-08 | 山西能源学院 | A kind of experiment and tutoring system for simulating down-hole coal excavation tunnel fully mechanized mining overall process |
| CN109448484B (en) * | 2018-11-10 | 2024-04-26 | 山西能源学院 | Experiment and teaching system for simulating comprehensive mining whole process of underground coal mining roadway |
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Granted publication date: 20190927 Termination date: 20211110 |