A large amount of toxic and harmful gases and dust will be produced in the mine production process, and radioactive and explosive gases can be precipitated in the ore. In addition, the temperature and humidity of the mine air have also changed. These unfavorable factors pose a great threat to the safety and health of miners. The basic task of mine ventilation is to continuously supply a sufficient amount of fresh air to the site to dilute and discharge various toxic, harmful gases, radioactive and explosive gases and dust, adjust climatic conditions, and ensure good air quality at the site, resulting in a A safe and comfortable working environment ensures the safety and health of miners and increases labor productivity.
In order to create a good mine atmosphere, the following ventilation technology issues must be properly addressed:
(1) Study the causes and distribution rules of toxic, harmful, radioactive and explosive gases and dust in mines, and actively adopt effective measures to eliminate smoke, detoxification and dust.
(2) Study the changing laws of mine climatic conditions and correctly solve the problem of cooling in winter antifreeze and deep hot mines.
(3) Study the laws of natural ventilation of mines, make full use of the effective effects of natural wind currents, and control the adverse effects of natural wind currents.
(4) Correctly determine the total air supply volume of the mine and the air volume required at each operation site.
(5) Correct selection of mine ventilation system, ventilation network structure and ventilation method.
(6) Correctly calculate the mine ventilation resistance and reasonably determine the ventilation power required by the mine.
(7) With the development and changes of production, air volume adjustment is carried out in time.
(8) Check and measure the mine ventilation conditions, find problems in time, and solve problems.
(9) Study the characteristics of air pollution in open pit mines and methods of ventilation and dust removal.
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