US 12,072,276 B2
Online measurement device for crystal size and shape in high-solid-content crystallization process
Fangkun Zhang, Qingdao (CN); Zidong Ai, Qingdao (CN); Bing Wu, Qingdao (CN); and Baoming Shan, Qingdao (CN)
Assigned to QINGDAO UNIVERSITY OF SCIENCE AND TECHNOLOGY, Qingdao (CN)
Appl. No. 17/775,901
Filed by Qingdao University of Science and Technology, Qingdao (CN)
PCT Filed Nov. 8, 2021, PCT No. PCT/CN2021/129276
§ 371(c)(1), (2) Date May 11, 2022,
PCT Pub. No. WO2022/105632, PCT Pub. Date May 27, 2022.
Claims priority of application No. 202011291265.3 (CN), filed on Nov. 18, 2020.
Prior Publication US 2023/0152205 A1, May 18, 2023
Int. Cl. B01D 9/02 (2006.01); B01D 9/00 (2006.01); G01N 15/1404 (2024.01); G01N 15/1434 (2024.01); G01N 15/14 (2006.01)
CPC G01N 15/1434 (2013.01) [B01D 9/0063 (2013.01); B01D 9/0077 (2013.01); G01N 15/1404 (2013.01); B01D 2009/0086 (2013.01); G01N 2015/1493 (2013.01); G01N 2015/1497 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An online measurement device for crystal size and shape in a high-solid-content crystallization process, comprising: a solution amplifier, a measurement device, a peristaltic pump, a crystallization kettle, a dilution device, and a solution storage tank,
wherein a crystal-containing solution is arranged in the crystallization kettle; wherein an inner wall of the solution amplifier is smooth, a first end of the solution amplifier is an amplification end, and a second end of the solution amplifier is a contraction end; wherein identical through holes are formed in middle parts of both the first end and the second end of the solution amplifier, and the solution amplifier is communicated with a pipeline by the identical through holes;
wherein the contraction end of the solution amplifier is communicated with a first end of the solution storage tank and a first end of the crystallization kettle; wherein the amplification end of the solution amplifier is communicated with the dilution device and the peristaltic pump; wherein the peristaltic pump is communicated with a second end of the crystallization kettle; wherein the solution amplifier, the peristaltic pump and the crystallization kettle form a complete passage through a pipeline; wherein a measurement instrument of the measurement device is arranged at an outer side of the solution amplifier and focuses on a solution in the amplification end of the solution amplifier; and wherein at least one stop valve is mounted on each branch of the pipeline.