Incinerator sludge back-spraying blending combustion system

Abstract

The invention relates to the field of waste incineration, in particular to an incinerator sludge back-spraying blending combustion system. The sludge back-spraying blending combustion system is connected with a sludge bin through a sludge supply device and comprises a feeding assembly communicating with the interior of an incinerator, the feeding assembly comprises a feeding piece arranged on the incinerator and a feeding pipe connected to the feeding piece, the feeding pipe is connected with the sludge supply device, the discharging end of the feeding piece communicates with the interior of the incinerator, the discharging end of the feeding piece is fixedly connected with a flow limiting plate, and a plurality of sludge outlets are formed in the flow limiting plate; and the feeding piece is connected with a pressurizing assembly for pressurizing the sludge. The sludge back-spraying blending combustion system has the effect of improving the sludge treatment capacity.

Description

technical field [0001] This application relates to the field of garbage incineration, in particular to an incinerator sludge back-spraying mixed combustion system. Background technique [0002] The incineration of garbage and the use of garbage incineration to generate electricity are the main ways to deal with domestic garbage. With the continuous increase of domestic sewage discharge in my country's cities and the continuous improvement of sewage treatment capacity and efficiency, the amount of sludge produced is also increasing, and the sludge produced by sewage treatment contains a large amount of organic matter and rich nitrogen, phosphorus and other nutrients, as well as toxic and harmful components such as heavy metals, pathogenic bacteria and parasites. In order to reduce the secondary pollution caused by sludge, To treat the sludge, a method of mixing and incinerating the sludge and domestic waste is proposed. [0003] The application submitted earlier with the publi...

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Problems solved by technology

[0004] In view of the above-mentioned related technologies, the inventors found that: the pipeline for transporting the sludge is connected to the incineration boiler, the sludge is directly discharged from the pipeline, and falls onto the grate on the lower side, and the sludge discharged from the pipeline is in the form of Cylindrical, and the cross-sectional diameter of the cylindrical sludge is adapted to the diameter of the pipeline. In the case of a small diameter of the pipeline, the process of transporting the sludge will not be smooth. Therefore, the diameter of the pipeline should be greater than a specific range value. In this way, the size of the sludge discharged into the incineration boiler will be large, and it will be difficult for the cylindrical sludge to dry completely during the process of falling onto the lower grate, making the sludge falling on the grate It contains a certain amount of water, which is easy to affect the ignition speed and combustion efficiency of domestic waste. It is easy to be discharged together with domestic waste when the sludge is not completely burned, and the efficiency of sludge incineration is low.

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