Process decomposition treatment device for medical waste incineration waste gas

Abstract

The invention relates to the technical field of waste treatment, in particular to a process decomposition treatment device for medical waste incineration waste gas. The device comprises a dust removal interlayer, wherein an annular dust settling chamber is arranged on the upper portion of the dust removal interlayer, a deposition space is arranged on the lower portion of the dust removal interlayer, glycerin is arranged in the deposition space, and a spraying system for spraying glycerol downwards from the top of the dust settling chamber is arranged outside the dust removal interlayer. According to the invention, the dust removal interlayer and a neutralization cylinder are arranged to treat dust and acid gas in waste gas, dust particles and metal particles in the waste gas are preliminarily captured in the dust removal interlayer through glycerin with high viscosity so as to reduce the content of particulate matter in the waste gas, meanwhile, dioxin can be absorbed from the waste gas, dioxin is prevented from being discharged, the reliability of continuous filtration can be guaranteed by filtering particulate matter through glycerol, gas enters the neutralization cylinder and then is neutralized through an alkaline solution, and acid gas in waste gas is treated.

Description

technical field [0001] The invention relates to the technical field of garbage treatment, in particular to a process-based decomposition treatment device for medical garbage incineration waste gas. Background technique [0002] Medical waste refers to the polluting waste produced by hospitals that have been in contact with patients' blood and flesh. Such as used cotton balls, gauze, tape, waste water, disposable medical equipment, postoperative waste products, expired medicines, etc. According to the medical inspection report of the national health department, because medical waste has the characteristics of space pollution, acute infection and latent pollution, its viruses and bacteria are dozens, hundreds or even thousands of times more harmful than ordinary domestic waste. If it is not handled properly, it will cause serious pollution to the environment, and it may also become the source of epidemics. Medical waste enters the inclined downward grate through the feed hopp...

AI Technical Summary

Problems solved by technology

The treatment technologies for acid gas mainly include dry process, semi-dry process, wet process and circulating fluidized bed process; the removal of heavy metals and dust mainly adopts activated carbon adsorption, bag filter, electrostatic precipitator and other means, but the above The removal effect of the method on fine particle size dust is poor, and the bag filter has problems such as clogged and broken filter bags. The above-mentioned methods are insufficient for the comprehensive removal of pollutants in the exhaust gas. , especially the problem of acid gas and a large amount of fly ash disposal, it is necessary to adopt a new flue gas treatment process that can meet the needs of more advanced, more scientific and efficient

[0004] Therefore, the invention with the application number CN201510106490.8 discloses a method for purifying waste gas from medical waste incineration. The wet absorption step uses an absorption tower to absorb acidic substances in the flue gas, and the dry dust removal step uses a dust collector to remove solid particles and heavy metals. It uses lime slurry spray method to react with acid gas. Since calcium hydroxide is insoluble in water, it is difficult to carry out sufficient contact reaction during the reaction process, and there are dioxins in the mixture, which are very stable and extremely insoluble. If it cannot be removed in the first step, it will be attached to the subsequent adsorbent, and it is easy to cause secondary pollution when changing the adsorbent or lime slurry in this way. Therefore, an effective Decomposition treatment device for removing dioxins in exhaust gas

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