Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Low-temperature ball-milling experimental apparatus

A low-temperature ball milling and experimental device technology, applied in grain processing and other directions, can solve the problems of increased energy consumption and prolonged ball milling time.

Inactive Publication Date: 2013-11-13
XI AN JIAOTONG UNIV
View PDF10 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is meaningless to extend the ball milling time too long, and it will only lead to an increase in energy consumption, because too fine particles cannot effectively store the elastic energy required for crack expansion

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Low-temperature ball-milling experimental apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A ball milling experiment of silicon powder at -150°C was carried out.

[0034] First, put silicon powder with a purity > 99.9% and a particle size of 200 mesh into a stainless steel ball milling tank with a ball-to-material ratio of 10:1. Vacuum the ball milling tank and inject Ar gas to prevent the powder from being oxidized during the ball milling process. Then assemble the jig and cover the airtight box. Then turn on the low-temperature air extractor and adjust the power of the air extractor to extract low-temperature gas, adjust the power of the mesh heater, and check the temperature display of the low-temperature first temperature detector, which is around -170°C, and the cold air enters along with the low-temperature insulation air duct Cool the ball mill insulation cabin and ball mill tank in the sealed box of the ball mill, and then observe the second temperature measuring probe in the sealed box, which shows that the temperature is -150°C. After 20 minutes of ...

Embodiment 2

[0036] A ball milling experiment of pure aluminum powder at -196°C was carried out.

[0037] First, put pure aluminum powder with a purity >99.9% and a particle size of 400 mesh into a stainless steel ball mill tank with a ball-to-material ratio of 20:1. Vacuum the ball mill jar and feed Ar gas to prevent the powder from oxidizing during the ball milling process. Then assemble the jig and cover the airtight box. Then turn on the low-temperature air extractor and adjust the power of the air extractor to extract low-temperature gas. The cold air enters the sealed box of the ball mill along with the low-temperature heat preservation air duct to cool the heat preservation cabin and the ball mill tank of the ball mill. Then observe the two temperature measuring probes, which show that the temperature is -196°C, keep warm for 20 minutes, start the ball mill, adjust the speed to 500r / min, and stop the ball mill after 5 hours. The obtained pure aluminum powder product is nano crysta...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a low-temperature ball-milling experimental apparatus which comprises a planetary low-temperature ball mill arranged in a sealed box, wherein a low-temperature gas generating device is connected onto an air inlet through a pipeline with a gas temperature control device, cooling gas is discharged from an exhaust port formed in the top of the sealed box, a drive device is arranged at the rear end of the sealed box and drives the planetary type low-temperature ball mill to rotate through a transmission device arranged at the bottom of the sealed box, and the transmission device is arranged in a base. Through the low-temperature ball-milling experimental apparatus, low-temperature gas generated by the low-temperature gas generating device is introduced into the sealed box, the low temperature of low-temperature ball milling is obtained by using the low-temperature gas when the drive mechanism drives the planetary type low-temperature ball mill, a ball milling tank is pre-cooled, and thus the function of saving energy is achieved, the gas is exhausted by the exhaust port in the top of the sealed box, and the low-temperature ball-milling experimental apparatus capable of accurately, efficiently and rapidly preparing relatively fine and passivated nano powder particles is realized.

Description

technical field [0001] The invention relates to a low-temperature ball milling experimental system capable of serving at normal pressure and at a working temperature of -120°C to -196°C, in particular to a low-temperature ball milling experimental device. Background technique [0002] The planetary ball mill is mainly designed for crushing, grinding, and dispersing powders such as metals, non-metals, organics, and Chinese herbal medicines. Its working principle is to use abrasives and powders to roll at high speed in the grinding tank to generate strong shear and impact on the materials. , Rolling to achieve the purpose of crushing, grinding, dispersing and emulsifying materials. The planetary ball mill is equipped with four ball milling pots on the same turntable. When the turntable rotates, the ball milling pots revolve around the axis of the turntable and at the same time rotate around their own axis to perform planetary motion. The balls in the jar collide with each oth...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B02C17/08B02C17/18B02C17/24B02C23/00
Inventor 孙良李烨飞高义民汤姝莉周寰林
Owner XI AN JIAOTONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com