SYSTEM AND METHOD FOR MICRONISATION OF SOLID PARTICLES USING FLUID DISTRIBUTION CHANNEL Russian patent published in 2025 - IPC B02C19/06 

FIELD: performing operations.

SUBSTANCE: invention relates to a system for micronisation of solid particles and a method for micronisation using such a system, which can be used in grinding solid particles. System (100) for micronising solid particles using a module with a fluid distribution channel comprises one or more compressed gas pipelines (1), (2), (3) provided with a corresponding compressed gas inlet (102), one or more powder feeders (104), each of which is installed in corresponding pipelines (1), (2), (3) of compressed gas, one or more modules (106) with a channel for fluid medium distribution, each of which is formed by a sequence of fluid medium distributors connected by means of a common passage. Each module (106) with a channel for fluid distribution is connected downstream of the corresponding one or more powder feeders (104). System also comprises cyclone separator (112) connected to all corresponding pipelines (1), (2), (3) of compressed gas, connected to corresponding outlets of corresponding one or more modules (106) with channel for fluid medium distribution and one or more particle size analysers in combination with one or more fluid guide distributors (108) located on compressed gas pipelines (1), (2), (3) near the outlets of one or more modules (106) with channel for fluid medium distribution. Method of micronising solid particles comprises receiving compressed gas through one or more compressed gas inlets (102) into one or more compressed gas lines (1), (2), (3), feeding the powder material to be micronised into the compressed gas flowing in the corresponding compressed gas pipeline to form a powder-gas flow, receiving the powder-gas flow into the corresponding one or more modules (106) with a fluid distribution channel, made from a series of fluid distributors, from a corresponding compressed gas pipeline, dividing the powder-gas flow into two flows and facilitating the collision of particles of the powder material in the separated flows in each of the sequence of fluid medium distributors, thereby causing powder material particle size reduction due to strong impact collisions. Then analysing the particle size of the powder material in the micronised powder-gas stream exiting from one or more modules (106) with channel for fluid medium distribution, and if the analysed particle size exceeds the required size, then the micronised powder-gas stream is directed to one or more modules (106) with channel for fluid medium distribution for further size reduction, or if the analysed particle size is equal to the required particle size or less, then the micronised powder-gas flow is directed to cyclone separator (112). After that, the micronised powder material is separated from the compressed gas.

EFFECT: system and method are characterized by energy efficiency and provide possibility of reuse of waste compressed gas.

10 cl, 3 dwg