thickener

Abstract

The invention provides a thickener for separating the saturated solution and solids contained in the slurry, which has an overflow pipe in the cavity, which can reduce the loss of solids caused by the overflow of salt blooms, and can also reduce the loss of solids caused by salt blooms. Pipeline blockage, which is conducive to long-term efficient and stable operation.

Description

technical field [0001] The invention relates to the field of solid-liquid phase separation, in particular to a thickener. Background technique [0002] Thickeners are widely used in chemical, pharmaceutical and other industries for solid-liquid phase separation. Thickeners are typically used to separate crystalline salts from concentrated brines. [0003] The conventional way of separating crystalline salts using thickeners works as follows. Heat the salt solution to 90-100°C, evaporate the water in the evaporator, and when the salt solution is saturated and crystalline salt precipitates, the slurry containing crystalline salt enters the thickener. The slurry delaminates in the thickener, essentially separating the upper saturated solution (sometimes called the supernatant) and the crystalline salts that settle in the lower part of the solution. When the amount of slurry sent into the thickener is greater than the capacity of the thickener, the saturated solution in the u...

AI Technical Summary

Problems solved by technology

In particular, since the slurry it handles is a solid-liquid mixture, it is easy to cause blockage of each outlet pipe, which in turn results in time and expense costs for maintenance and cleaning

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