High-negative-pressure-resistant door cover of bag type dust collector

Abstract

The invention discloses a high-negative-pressure-resistant door cover of a bag type dust collector. A single-layer arch-shaped door cover or a double-layer arch-shaped door cover structure is adopted,and the double-layer arch-shaped door cover comprises an arch-shaped outer shell 1, a handle assembly 2, an arch-shaped inner shell 3, reinforcing vertical ribs 4, a pressure equalizing device 5, a heat preservation material 6 and a U-shaped sealing strip 7. The handle assembly 2 is welded to the position 100-200 mm away from the inner side of the edge of a door cover on the top of the arch-shaped outer shell 1, and the reinforcing vertical ribs 4 are welded between the arch-shaped outer shell 1 and the arch-shaped inner shell 3 and on the inner side of the arch-shaped inner shell 3. The pressure equalizing device 5 is arranged at the top of the arched-shaped door cover and keeps away from the reinforcing vertical ribs 4; a gap between the arch-shaped outer shell 1 and the arch-shaped inner shell 3 is filled with the heat preservation material 6; and the U-shaped sealing strip 7 is embedded in a groove formed by the arch-shaped outer shell 1 and the arch-shaped inner shell 3. The strength and rigidity of the dust remover door cover can be greatly improved, the pressure resistance of the dust remover door cover is remarkably improved, and maintenance and overhaul operation conditions are improved; the high-negative-pressure-resistant door cover has the characteristics of simple and reasonable structure, convenience in operation, strong practicability and the like.

Description

technical field [0001] The invention relates to the field of dust removal and environmental protection, in particular to a high negative pressure resistant bag type dust collector door cover. Background technique [0002] Dust collectors are widely used in industrial flue gas pollution control. For industrial flue gas purification systems, there are usually positive pressure systems and negative pressure systems according to the system position of the dust collector. When the dust collector is in front of the main fan, it is a negative pressure system, otherwise it is a positive pressure system. [0003] In engineering applications, in order to reduce the wear and tear on the fan, the purification system is mostly a negative pressure system. If the total pressure of the main fan is high, the dust collector will be in a high negative pressure operating state. [0004] The door cover of the existing bag filter basically adopts a flat plate structure. Under high negative press...

AI Technical Summary

Problems solved by technology

[0004] The door cover of the existing bag filter basically adopts a flat plate structure. Under high negative pressure operation, the door cover is prone to concave deformation, resulting in air leakage around the door cover, resulting in condensation and corrosion inside the box, affecting the equipment body and the life of the filter bag; in addition, the drainage is not smooth and the water accumulation is serious

Especially when the dust collector is opened and maintained online, due to the suction effect of the high negative pressure inside the dust collector, it is very difficult to open the door cover, which seriously affects the maintenance operation

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