Alkali concentrated flake device capable of simultaneously producing different concentrations of solid caustic soda

Abstract

The invention discloses an alkali concentrated flake device capable of simultaneously producing different concentrations of solid caustic soda. The alkali concentrated flake device comprises an alkaliliquor trough, a triple-effect concentrated flake mechanism, a quadratic-effect concentrated flake mechanism and one-effect concentrated flake mechanism, wherein each one-effect concentrated flake mechanism comprises an evaporator, a separator and a flaking mechanism, a feeding pipe of the evaporator in the quadratic-effect concentrated flake mechanism is communicated with an output pipe on a separator material outlet in the triple-effect concentrated flake mechanism, and a feeding pipe of the evaporator in the one-effect concentrated flake mechanism is communicated with an output pipe on a separator material outlet in the quadratic-effect concentrated flake mechanism. The alkali concentrated flake device has the advantages that the flexibility is high, one type of caustic soda flakes ofany concentration in the range of 50 to 99 percent can be produced according to the customer requirement, various caustic soda flakes of different concentrations can be simultaneously produced, so that one set of device can perform the diversified production according to different requirements of the customer, thereby greatly improving the market competence of solid caustic soda production enterprises, and also effectively reducing the production energy consumption.

Description

technical field [0001] The invention relates to the technical field of alkali concentration production, in particular to alkali concentration flaking equipment. Background technique [0002] In the chlor-alkali industry, sodium hydroxide products are usually named after the mass concentration of sodium hydroxide. For example, a sodium hydroxide solution with a mass concentration of 32% is called 32 liquid alkali, and a sodium hydroxide solution with a mass concentration of 50% is called 50 liquid alkali, solid sodium hydroxide with a mass concentration of 75% is called 75 solid alkali, and solid sodium hydroxide with a mass concentration of about 99% is called 99 solid alkali. Flake solid alkali is referred to as flake alkali. [0003] With 50 liquid caustic soda as raw material, only a single product can be obtained by using traditional alkali concentrators for evaporation and concentration - 99 caustic soda or 75 caustic soda. However, the production of caustic soda with...

AI Technical Summary

Problems solved by technology

[0003] With 50 liquid caustic soda as the raw material, only a single product can be obtained by using the traditional alkali concentration device to evaporate and concentrate - 99 caustic soda or 75 caustic soda

However, the production of caustic soda with a single concentration not only consumes a lot of energy, but also has high product costs, and cannot meet the different needs of customers.

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