Silencing device and method for dry desulfurization and denitrification

Abstract

The invention discloses silencing device and method for dry desulfurization and denitrification and belongs to the technical field of dry desulfurization and denitrification. The silencing device comprises a driving mechanism and an annular air mechanism, wherein the driving mechanism drives the annular air mechanism to rotate; the annular air mechanism is arranged in the dry desulfurization and denitrification device and is communicated with a feeding hole in the side wall of the hearth; instantaneous separation of organic calcium is achieved through the annular air mechanism, so that noise caused by the instantaneous expansion of the organic calcium is reduced; the organic calcium enters the outer cover shell along the feeding connector and the conveying pipeline, so that the flowing path of the organic calcium is lengthened, the speed of the organic calcium entering the outer cover shell at first is reduced, and the noise caused by too high expansion speed of the organic calcium isavoided. Through linkage of the pressure sensor and the controller, automatic starting of the inner driving motor is achieved, the time difference during manual operation is effectively avoided, so that the noise caused by direct injection of organic calcium can be prevented in time. The separation of the organic calcium at the injection moment is achieved through a mechanical structure, so that the device is simple in structure, low in manufacturing cost and convenient to use.

Description

technical field [0001] The invention relates to the technical field of dry desulfurization and denitrification, in particular to a sound-absorbing device and method for dry desulfurization and denitrification. Background technique [0002] In-furnace organic calcium desulfurization and denitrification technology is a kind of dry desulfurization and denitrification technology. The specific process is to generate organic calcium through the reaction of organic oil generated by high-temperature pyrolysis of garbage waste with calcium-based compounds, and then spray organic calcium into the furnace for combustion. Instantaneous expansion, decomposition and combustion occur under high temperature conditions, so as to obtain high flue gas desulfurization and denitrification efficiency, but in the process of organic calcium desulfurization and denitrification in the furnace, the instantaneous speed of the organic calcium injected by the spray gun into the furnace is very fast, The ...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a kind of sound-absorbing device and method that can effectively eliminate noise, is simple in structure, low in cost, and is easy to use, so as to solve the problem of organic calcium sprayed into the furnace by the spray gun proposed in the above-mentioned background technology. The instantaneous speed is very fast, and when it is in contact with the high temperature in the furnace, it will cause a large impact on the furnace wall when it expands instantaneously, and it will cause a loud noise. With the continuous injection of organic calcium, the furnace will continue to emit noise, which will seriously affect the work. personnel health issues

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