Additive manufacturing (3D printing) has been shown to be a viable route to realize crystallizer design and affords the opportunity to accelerate development of novel, lab scale designs as well as the ability to rapidly adapt tailor-made equipment to the requirements of a specific application. This article presents a novel, modular crystallizer design, and the design rationale is discussed. The crystallizer consists of a heated, cylindrical mantle in conjunction with a concentric internal cylinder with a lamellar surface structure designed to keep particles in lateral motion relative to the direction of fluid flow. Using a single module, fluid and particle residence times and particle size evolution have been evaluated as a function of operating parameters. The performance of the equipment over an extended period of time has been investigated with a view to characterizing its propensity for fouling and blockage.

中文翻译：

---

新型连续环形间隙结晶器的设计和表征

增材制造（3D 打印）已被证明是实现结晶器设计的可行途径，并提供了加速新型实验室规模设计开发的机会，以及快速调整定制设备以满足特定应用要求的能力。本文提出了一种新颖的模块化结晶器设计，并讨论了设计原理。该结晶器由加热的圆柱形外壳和同心内圆柱体组成，该同心内圆柱体具有层状表面结构，旨在保持颗粒相对于流体流动方向的横向运动。使用单个模块，流体和颗粒的停留时间以及颗粒尺寸的演变已被评估为操作参数的函数。对设备在较长时间内的性能进行了研究，以表征其结垢和堵塞的倾向。