Method for improving quality of desulphurization gypsum in flue gas desulfurization process and flue gas desulfurization system

Abstract

The invention relates to the technical field of environmental protection desulfurization, in particular relating to a method for improving quality of desulphurization gypsum in flue gas desulfurization process and a flue gas desulfurization system. A plurality of seriflux supersaturation detection devices and a plurality of stirring devices are evenly distributed on the periphery of the seriflux tank of the flue gas desulfurization system, the stirring device is driven by a stirring driving device which is controlled by a control device; the seriflux supersaturation detection devices detect the supersaturation of peripheral seriflux and output the detection results to the control device; the control device controls the stirring driving device to operate according to the seriflux supersaturation degree detected by the seriflux supersaturation detection devices; according to the seriflux supersaturation, corresponding stirring operation is carried out on seriflux, the supersaturation of each zone of seriflux in the seriflux tank is evenly kept within the metastable state of crystal grains, thereby reducing new core formation rate of gypsum, increasing crystallization growth driving power of existing tiny crystal grains, and improving the quality of gypsum.

Description

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AI Technical Summary

Benefits of technology

The technical effect of this patented method described by this inventor overcomes previous methods where only one part of the solution was able to be completely dissolved beforehand or it had some issues such as uneven mixing caused by excessive concentration at certain parts of the process. This results in more complete mixture and even distribution throughout the entire system compared to other solutions like traditional ones. Additionally, there were no changes needed when adding smaller particles into the liquid phase during production which could affect the overall performance of the final product.

Problems solved by technology

This patented technical problem addressed in this patents relates to controlling the formation of stable and finely sintered hydrous calcined gypsum during production without forming too many tiny crystal latices or causing excessive wear on equipment caused by these mineral deposits that may form harmful substances like silica gel when heated above 200°C.

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