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Fluidized bed type jet milling and modifying system and application thereof

A jet pulverization and fluidized bed technology, applied in chemical instruments and methods, chemical/physical processes, methods of granulating raw materials, etc. Pulverized fracture minimum stress reduction effect

Active Publication Date: 2015-12-02
INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS +1
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  • Abstract
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  • Application Information

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Problems solved by technology

[0007] However, at the same time of jet crushing, problems such as agglomeration of ultrafine materials will also occur.

Method used

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  • Fluidized bed type jet milling and modifying system and application thereof

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Embodiment Construction

[0051] The present invention will be further elaborated and illustrated below in conjunction with the embodiments of the present invention.

[0052] a kind of like figure 1 The shown fluidized bed airflow milling modification system comprises an air compressor 1, airflow milling and classifying device 3, cyclone separator 8, bag collector 10 and induced draft fan 11 connected in series in sequence, and is characterized in that the air A heater 2 is also connected in series between the press 1 and the jet crushing and classifying device 3; the jet crushing and classifying device 3 includes a crushing chamber, a classifying wheel 7 and a supersonic nozzle 5, and the side wall of the crushing chamber has a hole in the middle Atomizing nozzle 6 is installed, and described atomizing nozzle 6 is connected with air compressor 1 by pipeline, and described supersonic nozzle 5 is installed in the position near the bottom of pulverizing chamber, and described classification wheel 7 is ar...

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Abstract

The invention discloses a fluidized bed type jet milling and modifying system and application thereof. The fluidized bed type jet milling and modifying system comprises an air compressor, a heater, a jet milling and grading device, a cyclone separator, a bag collector, an induced draft fan and an atomizing nozzle. The jet milling of powder material carried by hot air is conducted; the atomizing nozzle is used for atomizing a surfactant solution and then injecting the surfactant solution into a milling cavity; the hot air is used for drying the material continuously and simultaneously providing a certain environment temperature for the coating reaction of surfactants on the surface of the material, so that the surfactants are relatively liable to crosslink and form films on the surfaces of powder particles, thereby achieving the effect of milling and modifying simultaneously. An integrated process for milling and modifying ultrafine powder is provided; the fluidized bed type jet milling and modifying system is mainly used for solving the agglomeration phenomenon caused by increase of surface energy of the powder in the ultra-fining process; the fluidity of the powder is improved, so that the high operational performance of the powder can be retained.

Description

technical field [0001] The invention relates to the technical field of ultrafine powder material crushing, in particular to a fluidized bed airflow crushing powder modification system and its application. Background technique [0002] Ultrafine powder refers to the scale between molecules, atoms and bulk materials, usually refers to tiny solid particles in the range of micron to nanometer particle size. Including metal, non-metal, organic, inorganic and biological and other material particles. Ultrafine powder is usually divided into micron-scale, sub-micron-scale and nano-scale powder materials. [0003] Ultrafine powder technology refers to the preparation and application technology related to ultrafine powder. It mainly involves the preparation, classification, separation, drying, transportation, mixing and homogenization of ultrafine powder, surface modification technology, and safety technology such as packaging and transportation in the process of manufacturing, stor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B02C19/06B02C23/14B02C23/00B02C23/06B01J2/00B01J19/00
Inventor 杨云涛叶坤左金杨光成王军谯志强沈金朋李瑞刘有松
Owner INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
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