Wet flue gas desulfurization gypsum dehydrator

Abstract

The invention relates to a wet flue gas desulfurization gypsum dehydrator, which comprises a host system and a vacuum system, wherein the host system comprises a frame, a slurry tank, a rotating device, a driving device, a discharging device and filter disks; two ends of the slurry tank are fixed on the frame; the rotating device has a cylindrical structure, and two ends of the rotating device are fixed at two ends of the slurry tank; the driving device drives the rotating device to rotate in the slurry tank; a plurality of filter disks are arranged on the rotating device, the filter disks have a shape of an annular disk, each filter disk encircles the outer circumferential surface of the rotating device, cavities are formed in the filter disks, and the surfaces of the filter disks are provided with micropores communicated with the cavities; the discharging device is fixed on the slurry tank and is in contact with the surfaces of the filter disks; and the vacuum system is communicated with the cavities in the filter disks. The wet flue gas desulfurization gypsum dehydrator has the advantages of reliable performance, small floor area, low energy consumption, low switch maintenance cost and good dehydrating effect.

Description

technical field [0001] The invention relates to a flue gas wet desulfurization gypsum dehydrator, which belongs to the field of flue gas wet desulfurization gypsum dehydration. Background technique [0002] Usually, power plant flue gas contains sulfur (SO 2 ) must be removed by a desulfurization device before it is discharged. Flue gas desulfurization generally adopts limestone-gypsum wet flue gas desulfurization (FGD) system. At present, most of the domestic and even the world use the limestone-gypsum process for desulfurization (SO 2 ) thermal power plants of the system all use vacuum belt dehydrators to separate solids and liquids from their tail products. This vacuum belt dehydrator has the advantages of mature technology, reliable performance and simple operation in this industry. But on the other hand, this vacuum belt dehydrator has the disadvantages of large floor space, high investment, high energy consumption, high filtrate concentration and high maintenance c...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the shortcomings of the traditional vacuum belt dehydrator used on FGD, especially a series of problems caused by insufficient plant space in the desulfurization transformation of power plants, and provide a flue gas wet desulfurization gypsum dehydrator, It uses the facade as the filter surface, which solves the shortcomings of the traditional vacuum belt dehydrator, which has a large footprint and high energy consumption. It is a reliable performance, small footprint, low energy consumption, low switch maintenance cost, and good dehydration effect. Premium dehydrator

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