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Desulfurized gypsum quality regulation and control system and method

A control system and desulfurized gypsum technology, applied in the field of desulfurized gypsum quality control system, can solve the problems of waste of resources, poor quality of desulfurized gypsum, etc., and achieve the effect of improving quality

Pending Publication Date: 2021-07-20
DATANG ENVIRONMENT IND GRP +1
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  • Claims
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Problems solved by technology

[0006] One of the technical problems to be solved by the present invention is to provide a desulfurized gypsum quality control system to solve the problem that the desulfurized gypsum produced in existing power plants is of poor quality and can only be treated as solid waste, resulting in a huge waste of resources
[0007] The second technical problem to be solved by the present invention is to provide a method for controlling the quality of desulfurized gypsum, which solves the problem that the existing gypsum quality control method needs to add additional grain enlargers to improve the purity of gypsum

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  • Desulfurized gypsum quality regulation and control system and method

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Embodiment Construction

[0047] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0048] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form also includes the plural form, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this description, it indicates that there are Features, steps, operations, devices, components and / or combinations thereof.

[0049] Embodiments of the technical solution of the present invention will be described in detail belo...

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Abstract

The invention relates to the technical field of flue gas desulfurization, in particular to a desulfurized gypsum quality regulation and control system and method. The desulfurized ypsum quality regulation and control system comprises a desulfurization device, a gypsum buffer device, a gypsum rotational flow device and a vacuum belt conveyor device, the desulfurization device, the gypsum buffer device, the gypsum rotational flow device and the vacuum belt conveyor device are sequentially connected end to end; a primary flushing device is arranged between the gypsum buffer device and the gypsum rotational flow device; and a secondary flushing component is arranged on the vacuum belt conveyor device. The desulfurization device can control the utilization rate and the oxidation degree of limestone and the purity of calcium sulfate from the source, so that the quality of desulfurized gypsum is improved; the gypsum buffer device can be used for adjusting the temperature, pH and density of the slurry, so that a proper growth environment is provided for the growth of gypsum crystals; and in addition, soluble salt components in the desulfurized gypsum can be effectively removed through graded washing and graded dehydrating, and the quality of the desulfurized gypsum is stably controlled.

Description

technical field [0001] The invention relates to the technical field of flue gas desulfurization, in particular to a desulfurization gypsum quality control system and method. Background technique [0002] Flue gas desulfurization is a widely used desulfurization technology, among which limestone-gypsum wet flue gas desulfurization is the most widely used and most mature flue gas desulfurization technology in the world, accounting for 85% of the world's desulfurization market Left and right, limestone-gypsum wet flue gas desulfurization technology has higher desulfurization efficiency. [0003] The by-product of limestone-gypsum wet desulfurization is desulfurization gypsum, namely calcium sulfate dihydrate (CaSO 4 ·H 2 O), can be widely used in the preparation of gypsum board, gypsum block, gypsum powder building material products as raw material. However, the quality of desulfurized gypsum is uneven at present, and the desulfurized gypsum directly produced by power plants...

Claims

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Application Information

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IPC IPC(8): C01F11/46C04B11/028B01D53/80B01D53/50
CPCC01F11/464C01F11/468C04B11/028B01D53/80B01D53/502B01D53/504C01P2006/82
Inventor 李晓峰张国柱张钧泰谷小兵白玉勇吴静
Owner DATANG ENVIRONMENT IND GRP
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