I'll give you something unnecessary. Look at the last page. You need more experts. There are three main upper (lower) mountains in the mining area, including two air inlets and a special return air, which run through the whole mining area; The return air of all mining faces is introduced into the mining area from the special return air lane, and a reliable safety monitoring system is installed in accordance with the regulations, which meets the requirements of equipment serialization standards.

Then, several of our classmates, led by several technicians, visited and studied under the mine. Because this is the first time for all of us to enter the mine, everyone is very excited. We all feel a little uncomfortable with our ears because we are in weightlessness. We soon went to the bottom of the well and visited the underground pump house, substation and underground garage. The technicians patiently explained their working principle and performance, as well as their work.

Finally, I visited the pump room on the ground, where two axial-flow super-power fans are working and two centrifugal fans are on standby at any time to prevent unexpected situations. There, our teacher explained the working principle and performance of the fan

On this day, we visited the coal mine for practice, which let us know some basic conditions of the mine and laid the foundation for our future study.

Through this internship, I learned a lot about safety in production, which laid the foundation for my future study of professional knowledge, deepened my understanding of society, exercised my various abilities, and made me clearly realize my own shortcomings and inspired my enthusiasm for future study. Source: www.lw372 1.com