Steam rotary sodium sulfate drying system and method

Abstract

The invention provides a steam rotary sodium sulfate drying system and a method thereof. The system comprises a solid-liquid separation unit, a drying unit and a collection unit, wherein sodium sulfate slurry is subjected to solid-liquid separation through the solid-liquid separation unit; the separated solid is dried through the drying unit, and then collected and packaged by the collection unit.The solid-liquid separation unit comprises a swirler, a centrifugal machine and a conveying chute, slurry is primarily separated by the swirler and then is subjected to solid-liquid separation by thecentrifugal machine, separated solid enters the drying unit through the chute, and liquid separated by the swirler and the centrifugal machine returns to a sodium sulfate slurry tank. According to the scheme, the conventional production efficiency is effectively broken through; that the yield is more than 20 tons / hour can be ensured; the blockage of the materials to conveying equipment is effectively reduced; the maintenance cost of the equipment is reduced; the production quality of sodium sulfate is ensured, the mass production of the materials is facilitated, the production cost is effectively reduced, and the economic value of the materials is improved.

Description

technical field [0001] The invention relates to the production technology of mirabilite, in particular to a steam rotary sodium sulfate drying system and a method thereof. Background technique [0002] Anhydrous sodium sulfate is also called anhydrous nitrate, anhydrous Glauber's salt, Yuanming powder; white fine-grained crystal or powder, easily soluble in water, hygroscopic, odorless and non-toxic. Sodium sulfate can form heptahydrate and decahydrate, and heptahydrate (Na2SO4·7H2O) is a white orthorhombic crystal. When heated to 24.4 ° C, it turns into anhydrous. Sodium sulfate and carbon are reduced to sodium sulfide when reacting at high temperature; therefore, it is widely used in the manufacture of sodium sulfide, sodium silicate, etc., and is also used in papermaking, glass, printing and dyeing, synthetic fiber, leather, food, chemical and other processes. In addition, it is also used as an admixture for non-ferrous metal mineral processing, enamel, rubber, chemical...

AI Technical Summary

Problems solved by technology

[0008] However, this method is prone to material blocking during the use process, and at the same time it cannot break through mass production. The maximum production efficiency can only be below 10 tons / hour. The cost of equipment maintenance during the production process is high, which affects production efficiency.

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