Method for improving primary salty mud washing ability

Abstract

The invention relates to a salty mud washing process, and in particular relates to a method for improving the primary salty mud washing ability. The method comprises the following steps of adding settling agent dry powder and water into a settling agent preparation tank according to a mass ratio (0.025%-0.05%):1, and stirring the settling agent dry powder to be uniformly dissolved in the settling agent preparation tank; adding the well-dissolved settling agent and the primary salty mud into an assistant pump according to the volume ratio of 1: 10 to 20, conveying the mixture into a mud washing barrel pipeline through the assistant pump, and realizing the uniform mixing of the settling agent and the salty mud by utilizing the turbulence characteristic of the liquid inside the conveying pipeline; placing the mixture of settling agent and the salty mud into a mud washing barrel; continuing to mix the salty mud and the settling agent in the mud washing barrel, washing the mixture through the washing water, driving the magnesium hydrate (Mg(OH)2) and calcium sulfate (CaSO4) in the salty mud to be settled through the organic large molecules in the settling agent composition in the washing process, thereby realizing the settlement of the salty mud within a half hour.

Description

technical field [0001] The invention relates to a salt mud washing process, in particular to a method for improving the washing capacity of a salt mud. Background technique [0002] In the production process of soda ash, the original salt needs to be dissolved in water to form saturated brine. The original salt and brine contain a large amount of calcium and magnesium impurities, and the saturated brine needs to be refined and impurity-removed. In the two-step refining process, the crude Magnesium and sulfate radicals in brine are removed to form brine without magnesium and sulfate radicals, and a certain amount of main component Mg(OH) is produced at the same time 2 , CaSO 4 A salt mud slurry. After the primary salt mud slurry enters the central sleeve of the mud washing tank, due to the low density of the primary salt mud and the small salt mud particles, it is seriously disturbed by the liquid, and the sinking speed in the mud washing tank is slow, which seriously...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of low processing capacity and poor washing effect of the primary salt mud washing tank in the existing mud washing technology, and to provide a A method of improving the washing capacity of primary salt mud, which greatly increases the sedimentation rate of primary salt mud

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