The hopper-top dust collector is a single unit dust removal equipment with an automatic cleaning mechanism. This type of hopper-top dust collector is widely used in various industrial and mining enterprises such as cement, mineral powder, mining, metallurgy, building materials, machinery, chemical industry, and grain processing. It is a dust removal device used for filtering fine, non-fibrous dry dust in the gas or for recovering dry powder materials during the production process. The dust removal efficiency of the hopper-top dust collector can reach up to 99%. 

Working principle of the roof dust collector 

The dusty gas enters the dust collector box through the inlet. Due to the various effects of the filter bag, the fine dust particles are retained on the outer wall of the filter bag. The purified gas then exits through the box outlet on the filter bag. As the usage time increases, the dust adsorbed on the surface of the filter bag accumulates, reducing the透气性 of the filter bag， and causing the resistance of the dust collector to continuously increase. To ensure that the dust removal efficiency of the dust collector remains within the specified range， the pulse control instrument sends out a signal， sequentially opening the electromagnetic pulse valve， causing the compressed air in the air bag to be sprayed through the spray holes of the blowing pipe to the corresponding Venturi tube. When the high-speed airflow passes through the Venturi tube， it induces several times the amount of surrounding air to enter the filter cylinder， causing a rapid expansion between the filter bags. Due to the impact of the reverse pulse airflow， it disappears quickly， and the filter bags rapidly contract. This causes the dust adhering to the outer wall of the filter bags to be removed， and the fallen dust enters the dust bin.