A method for simulating natural wind pressure in underground mines
A technology of natural wind pressure and simulated ground, which is applied to the ventilation of mines/tunnels, mining equipment, earthwork drilling and mining, etc., and can solve problems such as the lack of intuitive description of natural wind pressure
Active Publication Date: 2018-09-18
SINOSTEEL MAANSHAN INST OF MINING RES CO LTD
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Problems solved by technology
It mainly focuses on the use of computer software for numerical simulation technology research, and lacks an intuitive description of the objective natural phenomenon of natural wind pressure.
Method used
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[0038] In order to further describe the present invention, a method for simulating natural wind pressure in underground mines of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0039] Option 1: by figure 1As shown in the structural diagram of the simulation device adopted by the method for simulating the natural wind pressure of underground mines, the wellhead of the return air shaft is higher than the elevation of the wellhead of the air intake shaft. The method consists of the air inlet shaft simulation pipe 1, the return air shaft simulation pipe 2, the wind tunnel simulation pipe 3 set horizontally, the shaft and the tunnel connection 4, the pipeline heating coil 5, the heating coil temperature controller 6, and the wind speed sensor 7 and temperature and humidity sensor 8 combination forms. The wind tunnel simulation pipe 3 is placed horizontally, and the two ends of the wind tunnel simulati...
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The invention discloses a method for simulating natural air pressure of an underground mine. An air applying level simulation pipe (3) is horizontally arranged, the two ends of the wind applying level simulation pipe (3) are connected with an air intake shaft simulation pipe (1) and an air return shaft simulation pipe (2) which are vertically arranged through shaft and level connecting parts (4) respectively. The exteriors of the air intake shaft simulation pipe (1), the air return shaft simulation pipe (2) and the air applying level simulation pipe (3) are wound with pipeline heating coils (5) respectively, the pipeline heating coils (5) are connected with heating coil temperature controllers (6), an air speed transducer (7) with a data display instrument is installed on the air intake shaft simulation pipe (1), and temperature and humidity sensors (8) with data display instruments are installed on the air intake shaft simulation pipe (1), the air return shaft simulation pipe (2) and the air applying level simulation pipe (3) respectively. The method has the advantages that a simulation device is simple in structure, convenient to assemble and low in cost, a calculation formula is simple, reliable and capable of simulating and demonstrating multiple natural air pressure types, and the method can be applied to mine ventilation system designing, scientific searching and teaching.
Description
technical field [0001] The invention relates to a method for simulating underground mine ventilation tests, in particular to a method for simulating and demonstrating natural wind pressure experiments, which is suitable for application in mine ventilation system design, scientific research and teaching. Background technique [0002] Natural wind pressure is a natural phenomenon that exists objectively in mines, and its effect is sometimes beneficial to mine ventilation, but sometimes it is opposite. In some mines developed by adits in mountainous areas, the natural ventilation in winter can basically replace the main fan. Natural wind pressure is an important driving force that cannot be ignored in mine ventilation. Now it is generally believed that the heat exchange and other factors caused by the wind flow cause the temperature difference between the air inlet side and the air return side of the mine, resulting in unequal air density, which makes the pressure at the botto...
Claims
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IPC IPC(8): E21F1/02
CPCE21F1/02
Inventor 贾敏涛周伟居伟伟吴冷峻黄寿元贾安民
Owner SINOSTEEL MAANSHAN INST OF MINING RES CO LTD