A kind of sodium chloride crystallization recovery device with stirring device

Abstract

The invention provides a sodium chloride crystal recycling device with a stirring device. The sodium chloride crystal recycling device comprises a sodium chloride solution storing groove, a circulating pump, a pre-mixed groove, a heat exchanger, an evaporation chamber and a crystal separation chamber, wherein the outlet of the sodium chloride solution storing groove is connected with the inlet of the circulating pump; the outlet of the circulating pump is connected with the inlet of the premixing groove; the inlet of the premixing groove is connected with the tube-pass inlet of the heat exchanger; the tube-pass outlet of the heat exchanger is connected with the side wall feeding hole of the evaporation chamber; the bottom outlet of the evaporation chamber communicates with the crystal separation chamber; the crystal separation chamber is provided with a bottom discharging hole storing groove. The sodium chloride crystal recycling device has the beneficial effects that the evaporation and concentration speed is increased effectively, and sodium chloride is recycled safely and reliably.

Description

technical field [0001] The invention relates to the field, more specifically to a sodium chloride crystallization recovery device with a stirring device. Background technique [0002] Sodium chloride is a basic chemical raw material, which can be widely used in chemical industry, materials, textile, printing and dyeing and other industries. If the content of sodium chloride in wastewater is high, it will cause waste of resources. Therefore how to effectively reclaim the sodium chloride of waste water in the sodium chloride production process is a problem to be solved. [0003] In the past crystallization devices, sodium chloride was mostly recovered by heating and concentrating, and the steam generated during the heating and concentrating process was used for heating. In this device, the overflow port on the side wall of the crystallization separation chamber and the outlet of the sodium chloride solution storage tank After converging near the circulating pump, it enters th...

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Problems solved by technology

[0003] In the past crystallization devices, sodium chloride was mostly recovered by heating and concentrating, and the steam generated during the heating and concentrating process was used for heating. In this device, the overflow port on the side wall of the crystallization separation chamber and the outlet of the sodium chloride solution storage tank After converging near the circulating pump, it enters the circulating pump. Due to the temperature difference between the crystallization separation chamber and the sodium chloride solution in the sodium chloride solution storage tank, the pipeline at the confluence point vibrates; Directly discharge the waste of energy; because there will be a small amount of organic matter remaining in the production process of silica sol, it is easy to generate air bubbles containing organic matter when heating and concentrating, and the air bubbles entering the vacuum equipment will easily cause vacuum equipment pollution and are extremely difficult to clean

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