Metal Melting Apparatus with High-Cycle Regenerative System
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Solution Overview
Problem
Conventional metal melting methods are time-consuming and laborious, requiring prolonged heating of metal materials from ordinary temperature to high melting points, and involve hazardous ladling of molten metals, disrupting the continuous process.
Innovation Solution
A metal melting apparatus equipped with a high-cycle regenerative system that preheats metal materials using recycled high-temperature air, allowing for continuous and efficient melting from solid to liquid, and a feeding system that enables uninterrupted metal injection into molds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If metal materials are heated from ordinary temperature in a conventional furnace, then the metal materials can be melted, but the melting process takes a long time
Solution Approach 1:
The patent applies preliminary action by preheating metal granules or sheets before they enter the melting furnace. The preheating device uses heat from the melting furnace to raise the temperature of metal materials in advance, so when they are subsequently melted, the process requires less time and energy input from the furnace.
Solution Approach 2:
The patent implements continuity of useful action through a closed-loop heat recovery system. The high-temperature air and molten metal exiting the melting furnace are directed through heat exchangers to preheat incoming metal materials, ensuring that heat is continuously recovered and reused rather than being wasted, thereby maintaining continuous productive action.
2Ease of operation
If molten materials are ladled out of the furnace manually or automatically, then the molten materials can be transferred to molds, but the process is hazardous and requires careful handling
Solution Approach 1:
The patent replaces manual or automatic ladling operations with a gravity-fed pouring system. The melting furnace is positioned at a height that allows molten metal to flow automatically into molds through gravity, eliminating the need for ladling operations and their associated hazards while maintaining ease of operation.
3Productivity
If the melting process is interrupted for ladling operations, then molten materials can be transferred to molds, but the process becomes disfluent and time-consuming
Solution Approach 1:
The patent ensures continuity of useful action by designing a system where preheating and melting operations can proceed simultaneously and continuously. The preheating device operates in parallel with the melting furnace, and the gravity-fed pouring system allows continuous transfer of molten metal to molds without interrupting the melting process, thereby maintaining fluent production flow.
4Loss of time
If high temperature air is recycled and used to preheat metal materials, then melting time is greatly shortened, but the system complexity increases
Solution Approach 1:
The patent applies universality by designing heat exchangers that serve multiple functions: they preheat metal granules or sheets before melting, and simultaneously preheat air that will be used for combustion or processing. This multi-functionality reduces the need for separate heating systems, thereby shortening melting time while limiting the increase in system complexity.
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
Significantly reduces melting time, ensures a fluent and safe process by preheating metal materials before melting, and allows for continuous operation without stopping for ladling, enhancing efficiency and safety.
Implementation Method 1
The HRS heats and recycles high temperature air in the heating furnace and guides the high temperature air to the preheating screw to preheat metal materials
Implementation Method 2
melting the metal materials in the melting furnace
Implementation Method 3
heat the metal materials until they are melted
Data Source
AI summary
A metal melting apparatus has a heating furnace, a melting furnace mounted on the heating furnace, a high-cycle regenerative system (HRS), a raw material feeding device and a melted material feeding device mounted on the melting furnace. The HRS heats and recycles high temperature air in the heating furnace and guides the high temperature air to the preheating screw to preheat metal materials in the preheating screw. Thus, a time for melting the metal materials from solid to liquid is greatly shortened. Furthermore, a series of processes for preheating the metal materials in the raw material feeding device, melting the metal materials in the melting furnace and injecting the molten materials to the molds is fluent, time-saving and safe, and can progress continuously.