Improved double-spiral-tube-bundle dust and mist eliminator

Abstract

The invention discloses an improved double-spiral-tube-bundle dedusting demister which comprises a barrel, a fixing screw and separators, an upper base and a lower base which are clamped and matched with the barrel are arranged at the upper end and the lower end of the outer ring of the barrel respectively, the fixing screw is coaxially arranged in the barrel, the separators are coaxially arranged on the fixing screw in a sleeving mode, the number of the separators is multiple, and the number of the separators is multiple. A pipe spacer sleeving the fixing screw is arranged in the middle of the barrel, and sealing plates matched with the barrel are arranged at the upper end and the lower end of the barrel. The spiral rib and the barrel are integrally arranged, so that the interior of the spiral rib is smooth and free of burrs, and smoke is effectively prevented from escaping from gaps; meanwhile, the spiral auger is designed into three stages through the pipe spacer to separate fog drops and dust in the flue gas layer by layer, the centrifugal force is strong, the flue gas passing resistance is small, and the dedusting and demisting effects are better. The structure design is simple and reasonable, the smoke passing resistance is reduced, the smoke dedusting and demisting efficiency is improved, and the practicability is high.

Description

technical field [0001] The invention relates to the technical field of dust removal and fog removal, in particular to an improved dual-coil bundle dust removal and fog removal device. Background technique [0002] When coal-fired flue gas is discharged, it is necessary to purify the coal-fired flue gas to reduce the content of dust particles and droplets in the coal-fired flue gas, so as to meet the emission requirements of dust particles and droplets. Generally, electrostatic precipitators, desulfurization towers and mist eliminators are used to transform the existing flue gas exhaust system to carry out dust removal, mist removal and desulfurization of the flue gas emission system. Some need to use wet electrostatic precipitator to further dedust the flue gas to achieve better dedusting requirements. [0003] However, the above solution has the disadvantages of high investment, high operating cost, long reconstruction period and great difficulty. [0004] The traditional...

AI Technical Summary

Problems solved by technology

When the traditional mist eliminator removes fine droplets and dust particles in the flue gas, when the flow rate is too high, it is easy to collide with the falling droplets to form secondary entrainment. When the flow rate is too low, the inertial impact force is insufficient, and the efficiency of dust removal and fog removal will be greatly reduced; Moreover, the traditional demister can only remove the dust combined with the mist droplets, and the dry dust cannot be removed, and the dust emission is not up to the standard

Images