Cooling crystallizer, help needed

For continuous cooling crystallizers, a spiral cooling crystallizer can be selected. Continuous crystallization offers advantages such as high yield, low energy consumption, less mother liquor, good product quality, a high degree of automation, and small equipment footprint.

This question is too general... It depends on what material you want to crystallize, the properties of that material, and so on

It depends specifically on what substance you need to crystallize and the properties of that material. In this way, it’s difficult for everyone to answer

The FC forced circulation mode is commonly used in evaporation crystallization, but less so in cooling crystallization. The DTB type refers to a crystallizer equipped with a flow guide ring; it is commonly used in vacuum flash evaporation crystallization processes. It is also utilized in cooling crystallization processes as well as evaporation crystallization processes that employ external coolers. The OSLO type is a type of crystallizer that does not involve stirring, and it features different functional zones that enable the formation of a relatively stable crystal bed layer. It is used for both cooling crystallization and evaporation crystallization, and it works particularly well for products whose crystal density is much higher than that of the mother liquor. There is no absolute advantage among different types of crystallizers; the choice should be made based on the specific product and operating conditions. Moreover, depending on the properties of the material in question, the optimal crystallizer design may differ significantly from those three categories mentioned above.

The FC forced circulation mode is commonly used in evaporation crystallization, but less so in cooling crystallization. The DTB type refers to a crystallizer equipped with a flow guide ring; it is commonly used in vacuum flash evaporation crystallization processes. It is also utilized in cooling crystallization processes as well as evaporation crystallization processes that employ external coolers. The OSLO type is a type of crystallizer that does not involve stirring, and it features different functional zones that enable the formation of a relatively stable crystal bed layer. It is used for both cooling crystallization and evaporation crystallization, and it works particularly well for products whose crystal density is much higher than that of the mother liquor. There is no absolute advantage among different types of crystallizers; the choice should be made based on the specific product and operating conditions. Moreover, depending on the properties of the material in question, the optimal crystallizer design may differ significantly from those three categories mentioned above.

The DTB crystallizer used in our current plants is primarily chosen based on the crystallization conditions, especially the solubility curve, which has a significant impact on the design of the crystallizer. When expanding the plants, we also considered the OSLO type; it should be noted that some of its components can be omitted depending on the process requirements, thereby reducing investment costs.

Horizontal wall-scraping cooling crystallizers have a large heat exchange area, and are particularly suitable for the crystallization of materials with small crystals and a certain viscosity!

We need to introduce your materials first in order to select the appropriate one; if your medium isn’t very special, there are usually ready-made devices available for you to choose from

I think you could go to Jingbo to take a look at their Na2SO4 crystals (PTU); if you’re still not sure, then get in touch with me—I’ve only seen crystallization equipment for flue gas desulfurization (PTU) water treatment. Hope it’s useful to you!