PRODUCTION OF FINE PARTICLE

PROBLEM TO BE SOLVED: To continuously and efficiently produce fine particle with a prescribed particle size or smaller by jetting a liquid with high pressure into a slurry-state liquid in which an object to be crushed is suspended. SOLUTION: A jetting hole 2 is opened in a container 1 in which a slu...

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Bibliographic Details
Main Authors NISHIMURA SEIJI, NAKAGAWA ZENICHI, YOSHIHARA FUKUZEN, TANAKA DOUSHICHI
Format Patent
LanguageEnglish
Published 26.05.1998
Edition6
Subjects
CRUSHING, PULVERISING, OR DISINTEGRATING
CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL
MILLING GRAIN
PERFORMING OPERATIONS
PREPARATORY TREATMENT OF GRAIN FOR MILLING
TRANSPORTING
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Summary:PROBLEM TO BE SOLVED: To continuously and efficiently produce fine particle with a prescribed particle size or smaller by jetting a liquid with high pressure into a slurry-state liquid in which an object to be crushed is suspended. SOLUTION: A jetting hole 2 is opened in a container 1 in which a slurry state liquid is to be poured and a liquid 4 supplied from a pressure generating source 3 such as a pump is jetted to the slurry-state liquid. The particle in the slurry-state liquid is crushed by shearing force in a jet current shearing layer induced by jetting the liquid 4 at high pressure and also by impact pressure due to cavitation generated in the slurry-state liquid in the container 1. Since the volume of the liquid in the container 1 increases by continuous supply of the liquid 4 in such a manner, the supply of the liquid 4 is stopped in a stage that a prescribed amount of supply is completed and the resultant fine particle which is a crushed product in the slurry-state liquid in the container is taken out. In order to take out the fine particle, a method of sorting by a sorter or evaporating the liquid is employed and the remaining particle is taken out.
Bibliography:Application Number: JP19960303065