Knowledge of productive dust protection

Productive dust refers to the solid particles formed in the production process and can float in the air for a long time. 1t is an important occupational harmful factor that pollutes the working environment and damages workers’ health. 1t can cause a variety of occupational lung diseases including pneumoconiosis< According to the nature of productive dust, it can be divided into inorganic dust, organic dust and mixed dust. Mining, quarrying, construction, casting, refractories and ceramics, asbestos mining, processing and manufacturing of asbestos products, metal processing, smelting, welding and so on, the main dust is inorganic dust. Among them, quartz dust (quartz with high purity of free SiO2) is more harmful to health the greatest impact of dust on the body is the respiratory system damage, including upper respiratory tract inflammation, pneumonia, pulmonary granuloma, lung cancer, pneumoconiosis and other occupational lung diseases. The patient has no obvious symptoms in the early stage. With the progress of the disease, or when there are complications, symptoms and signs such as shortness of breath, chest tightness, chest pain, cough and expectoration appear almost all countries in the world have dust hazards, especially in developing countries. 1n our country, pneumoconiosis is the main disease that endangers the health of workers exposed to dust. According to the experience of dust control for many years in our country, comprehensive measures must be taken to effectively prevent pneumoconiosis, including organizational measures, technical measures and health care measures, and summarized the eight character comprehensive dust control measures, namely (1) reform, namely process reform and technical innovation, which is the fundamental way to eliminate dust hazards< (2) water, i.e. wet operation, can prevent dust from flying. Reduce the concentration of environmental dust (3) strengthen ventilation and ventilation measures. 1n closed and semi closed workplaces with high dust concentration, mechanical ventilation measures are adopted to extract the dust air from the workplace and send fresh air into the workplace< (4) the dust source should be sealed, and the dust generating equipment should be sealed with hood as far as possible, and combined with exhaust air, and then discharged into the atmosphere after dust removal (5) personal protection, that is, personal protection, can wear dust masks as auxiliary protection measures< (6) management and maintenance management< (7) check the dust concentration in the air and the physical examination of the contact regularly< (8) to prevent pneumoconiosis, we should strengthen education, take comprehensive dust prevention measures and strictly control the dust concentration in the air our website solemnly declares that this article is reprinted by 1nternet media, only representing the author’s point of view, and has nothing to do with China labor insurance network. 1f the information column articles and comments violate your legal rights, please call to let us know and we will deal with them in time

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