Odor treatment device of sludge drying system

Abstract

The invention discloses an odor treatment device of a sludge drying system. The odor treatment device of the sludge drying system comprises a first exhaust pipeline, air inducing openings, a second exhaust pipeline, a combustion chamber, a hot gas recycling pipeline, a desulfurization chamber, a dust chamber, a biological deodorization chamber, a gas mixing chamber and an ion generator. The first exhaust pipeline, the air inducing openings and the second exhaust pipeline are arranged, tail gas in a drying bin and a workshop is exhausted into the combustion chamber to be combusted, hydrogen sulfide is converted into sulfur dioxide, and then the sulfur dioxide enters the desulfurization chamber to be desulfurized. Heat generated during combustion is returned into the drying bin to be used for sludge drying, so that the energy utilization efficiency is improved, odor emission and environmental pollution are reduced, and the deodorization efficiency is high. The ion generator is arranged for generating concentration-controllable positive and negative oxygen ions which react with odor molecules in the tail gas, and thus the concentration of odor is reduced; in addition, tiny particles in the tail gas are charged to generate a condensation effect, the dust concentration is reduced, and the concentration of the odor in the tail gas is further reduced.

Description

Technical field: [0001] The invention belongs to the technical field of sludge drying equipment, and in particular relates to an odor treatment device of a sludge drying system. Background technique: [0002] At present, sludge disposal in large cities has become difficult and expensive, long-distance sludge haulage, fuel and transportation costs have increased, sludge landfills consume a lot of land resources, and costs have increased, wet sludge direct incineration is expensive, and because Due to problems such as smog, citizens opposed the construction of incinerators in the city. Thermal drying of sludge is a safe, reliable, fast, efficient and large-scale sludge reduction technology. Sludge drying refers to the process of removing most of the water content from sludge through percolation or evaporation. After the sludge is thermally dried, the following effects can be achieved: the sludge is dried from 25% DS to 90% DS, the weight is reduced by about 78%, the product i...

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Problems solved by technology

[0004] For this reason, the technical problem to be solved by the present invention is that the odor treatment method used in the odor treatment device of the sludge drying system in the prior art cannot effectively remove the odor, the deodorization efficiency is not high, and it is not suitable for long-term use , so as to propose an odor treatment device for sludge drying system

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