Temperature-controlled tramp metal separation assembly
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Solution Overview
Problem
Existing tramp metal separation devices face issues with increased operating temperature due to friction, leading to reduced magnetic force, which affects the efficiency and continuity of the separation process.
Innovation Solution
A temperature-controlled tramp metal separation assembly featuring a core rod with a chamber and magnetic set, where external cooling air flows through an air path to maintain a stable temperature, and a movable sleeve tube designed to capture and discharge tramp metals while minimizing friction, utilizing non-magnetic materials and high magnetic permeability spacers to prevent magnetic force reduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the magnet assembly continuously contacts the wiper plate to remove tramp metals, then the tramp metal removal efficiency is improved, but the operating temperature increases due to friction, reducing magnetic force
Solution Approach 1:
The magnet assembly is segmented into multiple magnetic rollers arranged in series, allowing the contact surface to be distributed across multiple smaller rollers rather than one large continuous surface, reducing friction heat concentration
Solution Approach 2:
A cooling air flow is introduced as an intermediary cooling medium between the magnet assembly and the environment, carrying away friction-generated heat to maintain operating temperature and magnetic force
2Extent of automation
If the sleeve tube moves back and forth on the magnetic rod surface to capture and discharge tramp metals, then the continuous separation operation is improved, but the operating temperature increases due to friction, resulting in decreased magnetic force
Solution Approach 1:
The sleeve tube is extracted from direct contact with the magnetic rod surface by introducing a layer of cooling air flow between them, eliminating friction while maintaining the ability to capture and discharge tramp metals through the movable sleeve tube mechanism
Solution Approach 2:
A pneumatic cooling air flow system is used to provide both cooling and a protective barrier between the sleeve tube and magnetic rod, using gas pressure to maintain separation and reduce friction during the back-and-forth movement
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively maintains an acceptable operating temperature, preventing a decrease in magnetic force and ensuring continuous, efficient tramp metal separation by introducing external cooling air and optimizing the design of the core rod and sleeve tube.
Implementation Method 1
an external cooling air flow can be introduced from the air inlet, and then discharged from the air outlet via the air path
Implementation Method 2
The magnetic set includes a plurality of magnetic members and a plurality of spacers made of a material having a high magnetic permeability or a high saturation magnetization
Data Source
AI summary
A temperature-controlled tramp metal separation assembly includes a core rod and a magnetic set. The core rod is made of non-magnetic materials and includes a chamber, a first end with an air inlet, and a second end with an air outlet. The magnetic set includes a plurality of magnetic members and a plurality of spacers respectively disposed between the two adjacent magnetic members. The magnetic set is nested in the chamber in a way that an air path is formed therein so that an external cooling air flow can be introduced from the air inlet, and then discharged from the air outlet via the air path. Thus, the operating temperature of the tramp metal separating process can be maintained at an acceptable level, preventing the magnetic force of the magnet set from being reduced.