Concentration crystallization kettle

Abstract

The invention relates to the technical field of chemical equipment, and especially relates to a concentration crystallization kettle. The concentration crystallization kettle comprises a kettle body,a stirring mechanism, a driving mechanism and liquid guide mechanisms, wherein a liquid heating member is arranged in the kettle body; a liquid inlet valve for feeding a liquid and a discharge valve for discharging crystals are fixedly mounted on the kettle body; the plurality of liquid guide mechanisms with the same specification are annularly arranged on the inner wall of the kettle body; the liquid guide mechanisms are distributed at equal intervals; each liquid guide mechanism comprises a U-shaped pipe, a submersible pump and a solution port; the U-shaped pipes are fixedly mounted on the inner wall of the kettle body through pipe clamps; the submersible pumps are fixedly mounted on the U-shaped pipes; solution ports are fixedly formed in two ends of each U-shaped pipe; the stirring mechanism is arranged on a rotating base fixedly arranged in the kettle body; the stirring mechanism comprises a rotating rod and stirring blades; one end of the rotating rod is inserted into the rotating base and is rotationally connected with the rotating base; and stirring blades are fixedly arranged on rod walls on two sides of the rotating rod. The concentration crystallization kettle provided by the invention has the advantage of improving the heating temperature balance.

Description

technical field [0001] The invention relates to the technical field of chemical equipment, in particular to a concentrated crystallization kettle. Background technique [0002] Crystallization technology is a conventional technology for separating solid products from liquids. It is often used in the production of various chemical products, such as chemical reagents, medicines, food, etc., which involve crystallization, such as chemical reagents ammonium heptamolybdate, Production of sodium molybdate and sodium tungstate. Crystallization technology can be divided into evaporative crystallization or cooling crystallization, that is, to evaporate the solvent or reduce the solubility. Evaporate the solvent to make the solution from unsaturated to saturated, and continue to evaporate, the excess solute will be precipitated in the form of crystals, and the solubility will be reduced to reduce the solubility of the solute and crystals will be precipitated. . [0003] However, the...

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Problems solved by technology

[0003] However, there are many defects in most of the existing crystallization kettles, for example, it is often scorched on the inner wall of the crystallization kettle, which makes it inconvenient to extract the product. Uneven solution temperature and poor crystallization rate

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