(2) Dust removal in the main building of the mixing plant. A certain amount of dust will also be generated during aggregate screening, metering, mixture mixing, transportation and loading of finished products in the main building. Negative pressure dust collection points should be set in these sensitive floors. The collected dust is purified in series through primary inertial dust removal and secondary bag dust removal. The dust removed offline can be recycled. At the same time, the powder spraying and humidifying device is installed at the powder outlet to reduce the emission of dust during the recovery of dust.
(4) Strengthen plant management. Formulate appropriate and efficient production system, standardize the construction operation process, store the production materials in a closed and dry manner as far as possible, and timely clean up the scattered objects or debris, so as to reduce the unorganized emission of dust caused by weather and man-made external factors under abnormal working conditions. The vehicles in the factory should be as slow and steady as possible and sprinkle water or spray on the road with dust on time to suppress dust generated by vehicles.
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