Harrow(Rake) Vacuum Drying Equipment Specifically Designed for Lithium-Ion Batteries
In the lithium-ion battery industry, vacuum paddle dryers are primarily used for drying cathode and anode materials (especially lithium iron phosphate). The core principle involves rapidly removing moisture in a vacuum and low-temperature environment. At the same time, the unique design of the paddle blades and striking rods addresses material caking and oxidation issues, ensuring high material purity.
The following details the specific applications and key technical aspects of this equipment in lithium battery material production:
1. Core Operating Principle
Vacuum Low-Temperature Drying: This process utilizes the principle that the boiling point of water in materials decreases under vacuum conditions, with the material being indirectly heated via a jacket (using hot water, steam, or thermal oil). Under high vacuum conditions (typically -0.09 to -0.096 MPa), moisture and organic solvents rapidly evaporate at lower temperatures and are extracted by the vacuum system, preventing lithium battery materials (such as lithium iron phosphate) from oxidizing or suffering structural damage at high temperatures.
Dynamic Agitation: The main shaft inside the equipment drives the rake teeth (or scrapers) to rotate continuously in both directions. This not only removes material adhering to the heated walls, preventing localized overheating, but also creates continuous circulation of the material within the drum, greatly improving the uniformity of heat distribution and ensuring consistent moisture content in every batch of material.
YANCHENG QUANPIN MACHINERY CO.. LTD
Sales Manager – Stacie Tang
MP: +86 19850785582
Tel: +86 0515-69038899
E-mail: stacie@quanpinmachine.com
WhatsAPP: 8615921493205
WeChat: 86 19850785582
https://www.quanpinmachine.com/
https://quanpindrying.en.alibaba.com/
Address: Jiangsu Province, China.
Post time: Mar-26-2026