Novel wastes incineration flue gas purification system and process thereof

Abstract

The invention belongs to the waste gas handling technical field, particularly a novel waste burning gas cleaning system and the cleaning technology, wherein the system includes a dump dry type gas washing tower, a circulating fluid bed, a bag dust collector and a fan, and the cleaning technology is: the gas enters the dump dry type gas washing tower through the gas entry, which removes the sour gas in the gas; the cleaned gas enters the circulating fluid bed through the tower gas outlet, which removes the water and the residue sour gas, and enters the bag dust collector through the gas outlet of the circulating fluid bed; the bag dust collector filters the fine dust particles, the neutralizer particles, the deacidification reaction product particles and the active carbon particles in the gas, the cleaned gas is discharged into the air through the fan and the chimney. The system and the technology of the invention can greatly advance the cleaning capacity to the gas with wide accommodation limit and regulating range, low cost.

Description

technical field [0001] The invention belongs to the technical field of waste gas treatment, and in particular relates to a novel waste incineration flue gas purification system and purification process. Background technique [0002] At present, wastes containing more combustible components are usually reduced and harmlessly treated by incineration, and conventional incineration systems often produce new pollutants, such as acid gas (SO 2 , NO, etc.), dioxins, etc. These pollutants will damage the atmospheric environment and cause harm to the human body, so the flue gas after incineration must be purified. The flue gas purification system used in the national patent "incineration treatment system for hazardous waste in industrial areas" (patent number: 02235414.X) is composed of a water scrubber tower and a bag filter. Patent No.: 200420050509.9) The flue gas purification system used is composed of a spray tower, a bag filter and a secondary bag filter. Although these flue ...

AI Technical Summary

Problems solved by technology

These pollutants will damage the atmospheric environment and cause harm to the human body, so the flue gas after incineration must be purified

The flue gas purification system used in the national patent "incineration treatment system for hazardous waste in industrial areas" (patent number: 02235414.X) is composed of a water scrubber tower and a bag filter. Patent No.: 200420050509.9) The flue gas purification system used is composed of a spray tower, a bag filter and a secondary bag filter. Although these flue gas purification systems can effectively remove pollutants such as acid gases, the moisture in the flue gas It cannot be effectively removed, which will cause internal corrosion of the bag filter and shorten the service life

Furthermore, because there are many types of waste incinerated, the output of pollutants generated fluctuates greatly, so only the scrubber cannot guarantee the complete removal of pollutants

Spraying activated carbon or hydrated lime into pipelines or scrubbers can further adsorb pollutants and reduce their emissions, but due to insufficient contact, activated carbon or hydrated lime has poor adsorption effects on pollutants

Moreover, due to the immeasurable amount of pollutants, when the amount of pollutants is small, it will cause waste of activated carbon or slaked lime

Images