Defoaming and density measuring system for slurry outside desulfurizing absorption tower

Abstract

The invention discloses a defoaming and density measuring system for slurry outside a desulfurizing absorption tower and a construction method. The system comprises an absorption tower, slurry in theabsorption tower, a slurry outlet pipeline and a slurry discharge pump, which are connected to the exterior of the absorption tower; a defoaming pipeline, which is connected to the slurry outlet pipeline; a buffer device, which is connected into the defoaming pipeline; a nozzle, which is connected to the downstream end of the defoaming pipeline; a defoaming box, which is connected to the lower portion of the nozzle; a discharging pipeline, which is connected to the bottom end of the defoaming box; a densimeter, which is connected into the discharging pipeline; and a trench is connected to thelower portion of the discharging pipeline. The buffer device comprises a connecting pipe and a pore plate in the connecting pipe. During construction, through the arranged defoaming pipeline, the nozzle and the defoaming box, bubbles can be effectively eliminated, the defoaming time is shortened and the size of the defoaming box is reduced. The measurement efficiency and accuracy are improved. Through the buffer device, the slurry can be conveyed under reduced pressure; and the defoaming box is connected with the discharge pipeline, so that slurry self-flowing and density measurement are facilitated.

Description

technical field [0001] The invention belongs to the technical field of wet desulfurization engineering, and in particular relates to a defoaming and density measuring system and a construction method for slurry outside a desulfurization absorption tower. Background technique [0002] In the limestone-gypsum wet desulfurization process, it is necessary to control several parameters in the absorption tower. Among them, the slurry density is a direct control parameter to judge whether the absorption tower is in an accident state, and an indirect parameter to determine the liquid level in the absorption tower according to the pressure difference. Therefore, the slurry density is one of the most important parameters in the wet desulfurization process. [0003] In the past, the density measurement of the absorption tower adopts two methods of high and low pressure differential density measurement or measurement outside the sampling tower. In recent years, with the large-scale ex...

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Problems solved by technology

[0005] The invention provides a slurry defoaming and density measurement system and construction method outside the desulfurization absorption tower, which are used to solve the technical problems of saving time when defoaming the slurry in the desulfurization absorption tower, reducing the size of the defoaming box, and conveniently measuring the density of the slurry by self-flowing.

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