Application of spray mist dust-reducing system in shaft construction of subway

In 2017, construction of subway projects across the country began to spring up. Taking the construction of the Beijing subway as an example, only the Subway No. 12 line that was started along the North Third Ring Road will use a fully-enclosed steel shed structure between stations and stations to perform shaft construction operations, effectively reducing double pollution caused by noise and scum to the regional environment. .

Spray dust is a kind of wet dust. High-pressure automatic water mist spraying and dust-removing operations are carried out in the subway construction shaft opening and slag earth mouth to minimize PM10 dust pollution. The spray dust suppression system adopts water jet and fine water atomization technology to output high pressure and instantaneously release hundreds of millions of water mist particles. Through the infiltration and adhesion of the water mist, the dust particles are adsorbed by the spray droplets and settled by the weight, effectively suppressing the PM10. Dust particle diffusion, dust, dust removal effect.

Through the powerful promotion in recent years, Beijing Metro under construction units generally highly praised the effect of the dust-spraying dust-removing system on dust reduction at the construction site, supplemented with other dust-removal measures and complement each other, achieving the effect of reducing dust on the construction site. Due to its cost-effective features, the spray dust suppression system is bound to be gradually recognized and favored by construction companies.