Filtration device for dehydration of gypsum produced by desulfurization

Abstract

The invention belongs to the technical field of dehydration filter devices, in particular to a filter device for dehydration of gypsum produced by desulfurization, which includes a filter cavity and an external fixed base plate. Both sides of the inner cavity of the filter cavity are provided with wave plates. A control box is installed above the fixed base plate, and a rangefinder located directly above the filter cavity is fixedly installed on the bottom of the external fixed base plate. By installing a vibrating device inside the filter cavity, using the sealed box as power, shaking the fluff sheet, the gypsum inside the filter cavity is precipitated, and the water floats above the inner cavity of the filter cavity, and then the rangefinder is used for detection. The controller inside the control box controls the lifting height of the lifting device and adjusts it, so that the water absorbing device below the lifting device continuously absorbs the water in the inner cavity of the upper filter chamber.

Description

technical field [0001] The invention belongs to the technical field of dehydration filter devices, and in particular relates to a filter device for dehydration of gypsum produced by desulfurization. Background technique [0002] Usually, the flue gas in a power plant contains a large amount of sulfur oxides, so it must be treated by a desulfurization device before it is discharged to meet the emission standards. Limestone is generally used for flue gas desulfurization, and the thermal power plants of this system all use Vacuum belt dehydrator is used for solid-liquid separation of tail products. The vacuum belt dehydrator is a secondary dehydration equipment for gypsum slurry, which is a kind of equipment for separating the solid and liquid of gypsum slurry, including frame, filter cloth, belt and vacuum box. Among them, the filter cloth is the main part to achieve solid-liquid separation. Its working principle is that the gypsum slurry is continuously loaded and spread on ...

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Problems solved by technology

[0003] However, the filter cloth runs on the belt relying on the skirt, and the skirt runs with the belt, and once it passes through the driving roller and the driven roller, expansion and contraction deformation will occur once, but with the prolongation of the operating cycle, the skirt will undergo fatigue deformation, The adhesion between the skirt and the belt decreases, and the skirt is easy to crack, which affects the normal use of the device, and the maintenance of the filter cloth is more difficult and complicated. In order to solve the above problems, this application proposes a filter device for dehydration of gypsum produced by desulfurization

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