kneader
By using unlubricated bearings and seals in the kneader, the problems of reduced physical properties of the kneaded material and insufficient sealing performance were solved, resulting in a kneader with high sealing performance and a simplified structure.
CN122249282APending Publication Date: 2026-06-19KOBE STEEL LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- KOBE STEEL LTD
- Filing Date
- 2024-11-25
- Publication Date
- 2026-06-19
AI Technical Summary
Technical Problem
Existing kneaders using non-petroleum lubricating oils in the bearing section under supercritical or subcritical conditions are prone to causing a decrease in the physical properties of the kneaded material and insufficient sealing performance.
Method used
The design employs unlubricated bearings and seals that do not contain lubricating oil, ensuring high sealing performance of the rotor bearing section and preventing working fluid leakage through the seals, thus avoiding lubricating oil from entering the kneading space.
Benefits of technology
It effectively inhibits the degradation of the physical properties of the kneaded material, improves the sealing performance of the rotor shaft, simplifies the equipment structure, and makes it easier to maintain.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN122249282A_ABST
Abstract
A kneader (1) is provided that suppresses the degradation of the physical properties of the kneaded mixture and has high sealing performance at the shaft portion of the rotor. The kneader (1) includes: a chamber (2) defining a kneading space (15); a rotor (3) having a first rotor shaft portion (12) and a second rotor shaft portion (13); a first bearing portion (4) supporting the first rotor shaft portion (12) in a rotatable manner; a second bearing portion (5) supporting the second rotor shaft portion (13) in a rotatable manner; and seals (6a, 6b) preventing leakage of working fluid at a position closer to the motor than the chamber (2). At least one of the first bearing portion (4) and the second bearing portion (5) includes an unlubricated bearing.
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