CN113781889A - Multi-gas generation, injection and closing integrated simulation system suitable for comprehensive digging surface - Google Patents
Multi-gas generation, injection and closing integrated simulation system suitable for comprehensive digging surface Download PDFInfo
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- CN113781889A CN113781889A CN202111180046.2A CN202111180046A CN113781889A CN 113781889 A CN113781889 A CN 113781889A CN 202111180046 A CN202111180046 A CN 202111180046A CN 113781889 A CN113781889 A CN 113781889A
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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
- G09B25/02—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes of industrial processes; of machinery
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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
- G09B9/00—Simulators for teaching or training purposes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Abstract
The invention discloses a multi-gas generation, injection and closing integrated simulation system suitable for a variable comprehensive excavation surface, which comprises a variable cross-section rectangular device frame, a multi-gas nozzle group, a gas storage device, a negative pressure air suction pump, a gas-air mixing chamber, a power motor, a control panel and moving columns, wherein the variable cross-section rectangular device frame is surrounded by four L-shaped right-angle frames and four connecting rods, at least two moving columns are arranged, at least two gas nozzles are sleeved on each moving column, gas and air are sucked into the gas-air mixing chamber for mixing, the power motor is used for providing positive pressure into the gas-air mixing chamber to realize gas injection, and the control panel is used for controlling the mixing ratio of the sucked gas and air and the positive pressure of the gas-air mixing chamber. The comprehensive simulation of different injection points, different injection angles and different injection concentrations of a plurality of gases can be carried out, the multi-source gas release state of the fully-mechanized excavation working face in the coal seam mining process can be truly reflected, and an equipment foundation is provided for researching the gas distribution and treatment of the fully-mechanized excavation working face with different gas concentrations.
Description
Technical Field
The invention relates to the technical field of coal seam mining simulation experiments, in particular to a multi-gas generation, injection and closing integrated simulation system capable of adapting to a variable fully-mechanized excavation face.
Background
In the coal seam mining process, the situation of multisource gas is often met on the fully mechanized excavation face. The existing coal seam mining simulation experiment device has a lot of equipment, but has no auxiliary simulation for multi-source gas, so that the coal seam mining simulation experiment has defects, and the real situation in the coal seam mining process cannot be simulated.
Disclosure of Invention
The invention aims to provide a multi-gas generation, injection and closing integrated simulation system suitable for a variable fully-mechanized excavation face, which can truly simulate the gas release states of multiple positions of the fully-mechanized excavation face in the coal seam mining process.
Therefore, the technical scheme adopted by the invention is as follows: a multi-gas generation, injection and closing integrated simulation system suitable for a variable comprehensive digging surface comprises a variable cross-section rectangular device frame, a multi-gas nozzle group, a gas storage device, a negative pressure air suction pump, a gas-air mixing chamber, a power motor, a control panel and a moving column, the variable cross-section rectangular device frame is formed by four L-shaped right-angle frames arranged at the corners of a rectangle and four connecting rods respectively connected with two adjacent L-shaped right-angle frames in a sliding way, the movable columns are at least two and are arranged in the variable cross-section rectangular device frame at intervals from left to right, each movable column can move left and right in the variable cross-section rectangular device frame to any position and is locked and fixed, at least two gas nozzles are sleeved on each movable column, the gas nozzles can move up and down on the movable columns to any position and are locked and fixed, and the gas nozzles on all the movable columns jointly form the multi-gas nozzle group; the gas storage is equipped with the connecting valve, and the negative pressure aspirator pump is equipped with the admission valve, and gas storage, negative pressure aspirator pump link to each other with gas-air mixing chamber through the admission pipeline respectively to make gas and air inhale gas-air mixing chamber and mix, every gas shower nozzle is equipped with the shower nozzle control valve alone, and link to each other with gas-air mixing chamber through going out the gas pipeline respectively, power motor is used for providing positive pressure in the gas-air mixing chamber and realizes the gas injection, control panel is used for controlling the inspiratory mixture ratio of gas and air, gas-air mixing chamber's positive pressure.
Preferably, the number of the moving columns arranged in the variable cross-section rectangular device frame is three, and each moving column is automatically moved by a gear rack mechanism or a lead screw nut mechanism and a driving motor.
Further preferably, independent mixing cavities corresponding to the number of the gas nozzles are arranged in the gas-air mixing chamber, each independent mixing cavity is connected with the gas storage device and the negative pressure air suction pump respectively, different gas and air mixing ratios are controlled through the control panel, and the gas nozzles are connected with the corresponding independent mixing cavities through the air outlet pipes.
Further preferably, the system is arranged at the head-on position of a simulation experiment roadway of the fully mechanized coal mining face.
Preferably, the gas nozzle can move and rotate on the moving column automatically, and the control panel is used for controlling the position and the injection angle of the gas nozzle.
Preferably, the gas storage device, the negative pressure air suction pump, the gas-air mixing chamber and the power motor are arranged at the bottom position in the variable cross-section rectangular device frame, the connecting valve is installed on the gas storage device, the air inlet valve is installed on the negative pressure air suction pump, and the control panel is installed on a side column of the variable cross-section rectangular device frame.
The invention has the beneficial effects that: the width and the height of the device frame are adjusted by adopting a variable-section rectangular device, the cross sections of the fully-mechanized excavation working surfaces with different sizes are simulated, and the device frame is combined with a plurality of gas nozzle groups, a gas storage device, a negative pressure suction pump, a gas-air mixing chamber, a power motor, a control panel and a moving column to perform comprehensive simulation of different gas injection points, different injection angles and different injection concentrations.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic diagram of the head-on position of the simulation experiment roadway arranged on the coal fully-mechanized excavation face.
Detailed Description
The invention will be further illustrated by the following examples in conjunction with the accompanying drawings:
with reference to fig. 1-2, a multi-gas generation, injection and closing integrated simulation system suitable for a variable comprehensive excavation surface mainly comprises a variable cross-section rectangular device frame 10, a multi-gas nozzle group, a gas storage 1, a negative pressure air suction pump 3, a gas-air mixing chamber 5, a power motor 7, a control panel 8 and a moving column 9.
The variable cross-section rectangular device frame 10 is enclosed by four L-shaped right-angle frames 10a and four connecting rods 10 b. Four L-shaped right-angle frames 10a are arranged at the corner positions of the rectangle, and every two adjacent L-shaped right-angle frames 10a are connected in a sliding mode through connecting rods 10 b. Preferably, the two ends of the L-shaped right-angle frame 10a are provided with protrusions, the connecting rod 10b is provided with sliding grooves matched with the protrusions, and the sliding grooves and the protrusions form a sliding connection structure, so that the width and the height of the variable cross-section rectangular device frame 10 can be adjusted, and the width and the height can be respectively adjusted, thereby simulating the cross sections of the fully mechanized excavation faces with different sizes.
At least two movable columns 9 are arranged in the variable cross-section rectangular device frame 10 at intervals from left to right. Each movable column 9 can move left and right in the variable cross-section rectangular device frame 10 to any position and is locked and fixed, at least two gas nozzles 6 are sleeved on each movable column 9, and the gas nozzles 6 can move up and down on the movable columns 9 to any position and are locked and fixed. Preferably, the number of the moving columns 9 arranged in the variable cross-section rectangular device frame 10 is three, and each moving column 10 realizes automatic movement through a gear rack mechanism or a screw rod nut mechanism and a driving motor; in addition, the gas nozzle 6 can automatically move and rotate on the moving posts 9, and the control panel 8 is used for controlling the position of each moving post 9, the position of the gas nozzle 6 and the injection angle. But not limited to, the moving column 9 and the gas nozzle 6 can also adopt a manual moving structure
The gas nozzles 6 on all the moving columns 9 form a multi-gas nozzle group together. The gas holder 1 is equipped with a connecting valve 2, and is connected to a gas source through the connecting valve 2. The negative pressure suction pump 3 is provided with an intake valve 4 through which air intake is controlled. The gas storage device 1 and the negative pressure air suction pump 3 are respectively connected with the gas-air mixing chamber 5 through an air inlet pipeline, so that gas and air are sucked into the gas-air mixing chamber 5 to be mixed. Each gas nozzle 6 is individually equipped with a nozzle control valve (not shown in the figure) and is respectively connected with the gas-air mixing chamber 5 through an air outlet pipeline, so that the independent control of each gas nozzle 6 is realized. The power motor 7 is used for providing positive pressure to the gas-air mixing chamber 5 to realize gas injection, and the control panel 8 is used for controlling the mixture ratio of gas and air suction and the positive pressure of the gas-air mixing chamber 5.
Preferably, independent mixing cavities corresponding to the number of the gas nozzles 6 are arranged in the gas-air mixing chamber 5, each independent mixing cavity is respectively connected with the gas storage 1 and the negative pressure air suction pump 3, and different gas and air mixing ratios are controlled through the control panel 8. The gas nozzles 6 are connected with the corresponding independent mixing cavities through the gas outlet pipes, so that the gas concentration sprayed out of each gas nozzle 6 is different, and the real state of multi-source gas can be simulated truly.
For the optimized arrangement, the gas storage 1, the negative pressure air suction pump 3, the gas-air mixing chamber 5 and the power motor 7 are arranged at the bottom position in the variable cross-section rectangular device frame 10, the connecting valve 2 is installed on the gas storage 1, the air inlet valve 4 is installed on the negative pressure air suction pump 3, and the control panel 8 is installed on a side column of the variable cross-section rectangular device frame 10, but not limited thereto.
The system is arranged at the head-on position 11 of a simulation experiment roadway 12 of the fully mechanized coal mining face and is used for multi-source gas simulation experiments of the fully mechanized coal mining face.
Claims (6)
1. A multi-gas generation, injection and closing integrated simulation system suitable for a variable comprehensive digging surface is characterized in that: the variable cross-section rectangular device frame (10) is surrounded by four L-shaped right-angle frames (10a) arranged at rectangular corner positions and four connecting rods (10b) respectively connected with two adjacent L-shaped right-angle frames (10a) in a sliding mode, the number of the moving columns (9) is at least two, the moving columns are arranged in the variable cross-section rectangular device frame (10) at intervals from left to right, each moving column (9) can move left and right in the variable cross-section rectangular device frame (10) to any position and is locked and fixed, at least two gas nozzles (6) are sleeved on each moving column (9), the gas nozzles (6) can move up and down on the moving column (9) to any position and are locked and fixed, the gas nozzles (6) on all the movable columns (9) form the multi-gas nozzle group together; gas reservoir (1) is equipped with connecting valve (2), and negative pressure aspirator pump (3) are equipped with admission valve (4), and gas reservoir (1), negative pressure aspirator pump (3) link to each other through air inlet pipeline and gas air mixing chamber (5) respectively to make gas and air suction gas air mixing chamber (5) mix, every gas shower nozzle (6) are equipped with the shower nozzle control valve alone, and link to each other with gas air mixing chamber (5) through going out the air pipe way respectively, motor power (7) are used for providing positive pressure in gas air mixing chamber (5) and realize the gas injection, control panel (8) are used for controlling the inspiratory mixture ratio of gas and air, the positive pressure of gas air mixing chamber (5).
2. The variable-synthesis-face-adapted multi-gas generation, injection and closure integrated simulation system according to claim 1, wherein: the number of the moving columns (9) arranged in the variable cross-section rectangular device frame (10) is three, and each moving column (10) can automatically move by combining a gear rack mechanism or a screw rod nut mechanism with a driving motor.
3. The variable-synthesis-face-adapted multi-gas generation, injection and closure integrated simulation system according to claim 1, wherein: the gas-air mixing chamber (5) is internally provided with independent mixing cavities corresponding to the number of the gas spray heads (6), each independent mixing cavity is respectively connected with the gas storage device (1) and the negative pressure air suction pump (3) and controls different gas and air mixing ratios through the control panel (8), and the gas spray heads (6) are connected with the corresponding independent mixing cavities through air outlet pipes.
4. The variable-synthesis-face-adapted multi-gas generation, injection and closure integrated simulation system according to claim 1, wherein: the system is arranged at the head-on position (11) of a simulation experiment roadway (12) of the fully mechanized coal mining face.
5. The variable-synthesis-face-adapted multi-gas generation, injection and closure integrated simulation system according to any one of claims 1 to 4, wherein: the gas nozzle (6) can automatically move and rotate on the moving column (9), and the control panel (8) is used for controlling the position and the injection angle of the gas nozzle (6).
6. The variable-synthesis-face-adapted multi-gas generation, injection and closure integrated simulation system according to claim 1, wherein: the gas storage device (1), the negative-pressure air suction pump (3), the gas-air mixing chamber (5) and the power motor (7) are arranged at the bottom position in the variable-section rectangular device frame (10), the connecting valve (2) is installed on the gas storage device (1), the air inlet valve (4) is installed on the negative-pressure air suction pump (3), and the control panel (8) is installed on a side column of the variable-section rectangular device frame (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111180046.2A CN113781889B (en) | 2021-10-11 | 2021-10-11 | Multi-gas generation, injection and closing integrated simulation system suitable for comprehensive digging surface |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111180046.2A CN113781889B (en) | 2021-10-11 | 2021-10-11 | Multi-gas generation, injection and closing integrated simulation system suitable for comprehensive digging surface |
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| CN113781889A true CN113781889A (en) | 2021-12-10 |
| CN113781889B CN113781889B (en) | 2023-01-24 |
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