The fourth word of the dustproof eight-character policy is

The fourth word of the dustproof eight-character policy is wind.

The eight-character policy of dust prevention refers to: skin, water, density, wind, protection, management, teaching and inspection. Wind is ventilation and dust removal. "Renovation" refers to the reform of process and production equipment, "water" refers to wet operation, "density" refers to closed dust source, "wind" refers to ventilation and dust removal, "protection" refers to individual protection, and "tube" refers to a series of measures to ensure the maintenance and management of dust removal equipment and the implementation of dust removal management system.

"Education" refers to strengthening publicity and education, so that the legal representatives and workers of enterprises can correctly understand the hazards of dust, that is, occupational health examination, including pre-job, on-job, off-job and emergency occupational health examination. Those who have the following diseases in the pre-job examination are not allowed to engage in dust contact: active tuberculosis, serious chronic respiratory infectious diseases, chest diseases that significantly affect lung function, and serious cardiovascular diseases.

The meaning of productive dust

Productive dust refers to solid particles that are produced in production activities and can float in the production environment for a long time. The more particles with small particle size, the higher the dispersion, and conversely, the lower the dispersion.

Different production sites can be exposed to different kinds of productive dust: in agriculture, grain processing, sugar industry, animal management and textile industry, organic dust mainly composed of plant dust and animal dust is exposed; Mining, quarrying, construction, casting, refractories and ceramics industries are mainly exposed to timely mixed dust; Contact with metal and its compound dust during welding, metalworking and smelting.