English
In stone processing, cutting and polishing not only raise dust, but also pose health hazards that are difficult to distinguish with the naked eye. Once crystalline silica dust enters the lungs, it can cause silicosis and the damage is irreversible. This guide is not empty talk, it only talks about the practical protection points that fit the workshop.
Recognize the true face of dust
The characteristics of dust vary in different processes: granite dust has a high silicon content, while marble dust, although having a low silicon content, is prone to scattering. During dry operation, PM2.5 level dust will remain suspended for a long time and is more likely to penetrate the alveoli than large particle dust. It is recommended to conduct a dust concentration test every 3 months, with a focus on the breathing zone area of the operating position rather than the overall value of the workshop.
Choose and use the right protective equipment
Ordinary gauze masks are almost ineffective against stone dust. For general positions, KN95 self-priming filter anti particle respirator can be selected for air tightness inspection before operation. But in high concentration and high hardness dust environments such as granite cutting, it is recommended to upgrade directly to KN100 grade silicone half masks, such as the combination of Fangdun1105K and 2102N filter cotton. Its liquid silicone material has high adhesion, and the dual filter box design has a large dust holding capacity, which can effectively intercept 99.97% of fine dust, making it more suitable for wearing all day long.
Homework details "prevent small mistakes and avoid gradual ones"
Wet operation is a highly cost-effective and practical dust reduction method: during cutting, the water flow covers the contact point of the saw blade, and the water pressure is not less than 0.2 MPa; Continuous spray shall be used for grinding to avoid dry grinding for ten minutes and raising dust for half an hour. Check the sealing of the interface of the dust collection hood every week. Pipeline damage can reduce the dust removal efficiency by more than 50%. For workstations that require frequent head lifting or side lifting for irregular processing or manual carving, using face masks with single filter box designs such as Fangdun7200B is more flexible, ensuring protection levels and reducing visual blind spots, making it convenient for workers to work in complex postures.
Get out of the misconception of protection
Some people think that 'if you wear it for a long time and feel dizzy, you don't need to wear it', but in fact, dizziness is often caused by clogged filter cartridges or wearing it too tightly. Adjust it in a timely manner; Youth can withstand it "is more dangerous - the incubation period of silicosis is 10-20 years. It is recommended to take protective measures when young, but regret it in middle age. Before starting work, perform baseline lung function tests, undergo annual follow-up examinations, and establish personal health records.
Respiratory protection is not a "face saving project" to deal with examinations. From selecting the right cover to wet dust reduction, every detail is reducing the burden on the lungs. Healthy lungs are the most stable capital for stone workers.
