Long-term inhalation of graphite dust can cause graphite pneumoconiosis, individual protection should be to prevent or reduce these dust into the human respiratory organs. The body itself into the respiratory tract dust has a defensive function, through a variety of ways to remove most of the dust particles, through the body of the various functions of the vast majority of inhalation of dust will be excluded from the body, into and remain in the hilar lymph nodes , Just a small part of the inhalation of dust. Therefore, as long as the operating environment in the graphite dust concentration control in the state under the health standards below, was inhaled the body of trace graphite dust does not endanger human health.

Processing of graphite, the local dust concentration will be relatively large, simple and effective way is to wear dust masks. Commonly used dust masks for self-priming masks. Self-priming masks can be divided into simple masks and ventilation valve with two. Simple masks with small breathing resistance, high dust resistance, light weight, easy to clean, low cost, does not affect the operation and other advantages, but it has a strong hygroscopicity, the use of a long time to increase resistance, short life, simple masks Suitable for low dust area operations, such as the operation of graphite processing center. With ventilation valve with a suction valve and exhalation valve, filter installed in a special filter box, with dirty can replace the new filter, the suction air through the suction valve by the filter after filtering into the lungs Department, exhaled gas from the breathing valve directly discharged masks. With ventilation valve masks with good rigidity, high dust resistance, low resistance, good dust retention effect, long life, etc., but its complex structure and the impact of high quality and high cost, suitable for high dust area operations, such as Operation of graphite sawing machines and so on. 6 concluding remarks

Although the graphite processing will produce a lot of dust, as long as the appropriate measures to control the concentration of dust within the national safety standards can reduce machine tool wear, improve production efficiency, can also prevent the occurrence of graphite pneumoconiosis. With the extensive application of graphite materials, graphite dust control will also be increasingly attention to the prevention and control of dust in line with environmental protection requirements, but also in line with the interests of manufacturers requirements.