Alga iodate evaporating crystallizer

Abstract

The invention discloses an alga iodate evaporating crystallizer. An evaporating chamber, a heating chamber and a salt foot are connected from top to bottom to form an integrated structure; an alga iodate immersing solution enters from a feeding hole formed in the upper part of the evaporating chamber and then enters the heating chamber; the heating chamber is internally provided with a heating pipe; a steam inlet is formed in the upper part of the heating pipe and a condensed water outlet is formed in the lower part of the heating pipe; steam enters the heating pipe to heat the alga iodate immersing solution; the evaporating chamber is provided with a circulating device for circularly conveying the alga iodate immersing solution from the evaporating chamber to the heating chamber; after a certain temperature is reached, the alga iodate immersing solution is boiled and evaporated; alga iodate is concentrated to separate out the salt foot sinking to the bottom. With the adoption of the alga iodate evaporating crystallizer disclosed by the invention, the evaporating chamber, the heating chamber, the circulating device and the salt foot, which are needed by evaporation and crystallization, are integrated into a whole; the structure is compact; the boundary dimension is reduced by a half when being compared with that of an evaporating device with the same effect, so that the manufacturing cost is greatly saved and the occupied floor area is reduced.

Description

Technical field [0001] The invention relates to a crystallization device, in particular to a seaweed iodine evaporation crystallizer. Background technique [0002] Evaporative crystallizer is a kind of crystallizer. Its structure and operation are the same as some evaporators (hanging basket evaporator, forced circulation evaporator). The solvent is heated and evaporated under reduced pressure, and the solution reaches supersaturation and crystals are precipitated. Usually the solution is concentrated in the evaporator first, and then poured into another crystallizer to complete the crystallization process. The extraction of seaweed iodine usually uses a continuous evaporation crystallizer. During operation, the material liquid is added from the lower part of the circulation pipe, mixed with the crystal slurry leaving the bottom of the crystallization chamber, and then sent to the heating chamber by the pump. The crystal slurry is heated in the heating chamber (usually 2~6℃), bu...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved and the technical task proposed by the present invention are to improve the prior art and provide a seaweed iodine evaporation crystallizer, which solves the problem that the evaporation crystallizer in the current technology has many equipment parts, occupies a large area, and has high production costs. The problem of high power consumption

Images