1. Prevention and control of sand and gravel material storage yard dust
In the concrete mixing plant, the dust in the sand and gravel material storage yard is mainly related to the wind speed and the moisture content of the dust particles. Therefore, reducing the open-air accumulation of materials such as sand and gravel and ensuring a certain moisture content (moisture content greater than 10%) are effective ways to suppress this kind of dust. Therefore, the concrete mixing equipment produced by Smart Machinery uses steel structures for material storage yards. Closed, and installed spray spray system equipment in the steel structure factory building, which effectively reduced the emission of such dust, greatly reduced the impact on the external environment, and completed the effective closure and control of pollution sources.
2. Prevention and control of dust during the transportation of sand and gravel materials
In the concrete mixing equipment produced by Zhengzhou Smart Machinery, the belt corridor is sealed, and the transportation, measurement, and feeding of sand and gravel materials are all planned to be carried out in a closed environment, which not only has a good dust suppression effect, but also suppresses the loss of concrete materials.
3. Prevention and control of breathing holes on the top of the powder tank and dust at the bottom of the warehouse
For the dust generated by the breathing hole on the top of the powder tank and the bottom of the warehouse, it is still possible to build a steel structure main building to close it, and follow the traditional dust collection method at the same time, install a filter element dust collector on the breathing hole on the top of each powder tank, The advantage of using negative pressure suction dust collection equipment is that the collected dust can be returned to the silo for reuse, and some dust will not disperse to the periphery even if it accumulates in the main building. The dust collection rate of the cement silo is about 99.5%.