Accurate desulfurization system based on dense flow absorber desulfuration process

Abstract

The invention relates to an accurate desulfurization system based on a dense flow absorber desulfuration process, belonging to the technical field of dense flow absorber desulfuration. The system comprises a frequency changer, an intermediate hopper, an electronic scale belt, a water quantity regulating valve and a PLC (Programmable Logic Controller) control system, wherein the frequency changer is additionally arranged on a star-shaped feeding machine at the lower part of a dust remover ash bucket, the intermediate hopper is additionally arranged at the lower part of a scraping machine, and the electronic scale belt is arranged under the intermediate bin; and the star-shaped feeding machine is controlled by adopting the frequency changer to discharge ash, the intermediate bin is a weighting type intermediate bin and used for controlling the position of the bin, the electronic scale belt controls the ash adding quantity, the water quantity regulating valve controls the water quantity,and the PLC control system forms a closed ring control loop. The invention has the advantages that a dense flow absorber desulfuration system realizes accurate desulfuration through changing the process; the accurate gas desulfurization system can be used for continuously, stably and accurately carrying out desulfurization; and unstable system desulfurization brought by frequent manual operation and experimental operation of operators is avoided.

Description

technical field [0001] The invention belongs to the technical field of dense-phase dry tower desulfurization, and in particular provides an accurate desulfurization system based on the dense-phase dry tower desulfurization process. 2 The method of automatically matching the amount of ash and water with the concentration change can be used in the sintering flue gas desulfurization system. Background technique [0002] The 360-square-meter sintering machine flue gas desulfurization equipment of Shougang Mining Company’s sintering plant adopts dense phase dry tower desulfurization technology. The ash circulation system uses pneumatic conveying to transport the desulfurizer to the bucket elevator, and the bucket elevator sends it to the humidifier for desulfurization. The tower participates in the desulfurization reaction. Part of the desulfurization ash is deposited into the ash hopper of the desulfurization tower and the transition chamber, and most of it is deposited into the...

AI Technical Summary

Problems solved by technology

The original design is to control the current of the bucket elevator by starting and stopping the star feeder at the post. When the current of the bucket elevator is low and cannot meet the water addition requirements of the system, the post needs to adjust the star feeder in time.

First of all, the on-site operators have to judge the current of the bucket elevator based on experience, and adjust it in time. If the adjustment is slow, it will affect the desulfurization efficiency; make adjustments in

This kind of operation method is random, and the labor intensity of the on-site operators is high, and the working time is long. It is inevitable that the current fluctuation of the bucket elevator will be large, which will affect the desulfurization efficiency and cannot achieve continuous and stable desulfurization.

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