A centrifugal production system for separating gypsum

Abstract

The invention relates to the technical field of flue gas treatment and in particular relates to a centrifugal production system for separating gypsum. The system at least comprises a material slurry thickening device for carrying out primary dehydration, a material slurry homogenization device for uniformly blending material slurry and a centrifugal dehydration device for realizing material slurry dehydration and washing and filter cake scraping treatment, which are engaged in sequence. The system provided by the invention can be used for effectively cleaning impurities in liquid so that the impurities are concentrated in discharge liquid; on one hand, large-yield and high-quality gypsum products can be obtained; on the other hand, potential threats to the environment, caused by impurity dispersion, are also eliminated, multiple purposes are realized simultaneously. The system provided by the invention has a high automation degree and can realize online monitoring and control; data is automatically saved and report forms and the like are automatically generated; the centrifugal production system has the advantages of extremely high integration level, shorter flow, few material operation links, capability of realizing whole sealing and influence on the environment is less, so that the centrifugal production system is suitable for current industrial production.

Description

technical field [0001] The invention relates to the technical field of flue gas treatment, in particular to a centrifugal production system for separating gypsum. Background technique [0002] Limestone (lime)-gypsum wet desulfurization is currently the main method of flue gas desulfurization in the power and non-ferrous industries. It has the advantages of mature and reliable technology, high desulfurization efficiency, rich source of desulfurizer raw materials, and comprehensive utilization of by-product gypsum. In the power industry, due to the large amount of flue gas treatment and the high concentration of sulfur dioxide in the flue gas, limestone is usually used as a desulfurizer; if the concentration of sulfur dioxide in the tail gas of acid production is low, the amount of flue gas is not large, and the actual conditions on site are limited, limestone can also be used for desulfurization. agent. The desulfurization unit is mainly composed of desulfurization tower, p...

AI Technical Summary

Problems solved by technology

At present, there is no mature process and complete sets of equipment in the gypsum production link, the process parameters are not specific, and the supporting equipment is not perfect, which leads to most manufacturers still in the state of technological exploration, whether it is for key process routes or main process parameters, or even There is no clear concept of the specific requirements and interrelationships of supporting equipment, so that the quality of gypsum products in the limestone / lime-gypsum wet desulfurization process cannot be distinguished, and the quality grades vary greatly

Since there is no specific process and system as a comparison, it is impossible to propose a complete and reliable plan for the improvement of the quality of gypsum products. On the one hand, the market competitiveness of the enterprise is reduced, and on the other hand, the impurity content in the effluent is high, and the biochemical indicators High, greater threat to the environment

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