Metal recycling smelting furnace

By introducing a combination of induction coils and ceramic stirring rods into the metal smelting furnace, the problems of uneven heating of molten metal and difficulty in removing it are solved, achieving efficient metal smelting and convenient discharge process.

CN224302703UActive Publication Date: 2026-05-29恒昌重工(山东)有限公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
恒昌重工(山东)有限公司
Filing Date
2025-05-14
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing metal smelting furnaces suffer from uneven heating, lack of stirring function, and difficulty in removing molten metal during the smelting process, which affects smelting efficiency and consumes manpower.

Method used

A metal recycling furnace was designed, comprising an outer frame, a chassis, a crucible melting chamber, an auxiliary melting mechanism, a tilting mechanism, and an auxiliary feeding mechanism. The furnace achieves uniform heating and tilted discharge of molten metal through the combined use of eddy currents generated by induction coils, stirring by ceramic stirring rods, and tilting mechanism.

Benefits of technology

It achieves uniform heating of molten metal, improves smelting efficiency, and saves manpower and simplifies the process of removing molten metal by using an inclined discharge mechanism.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224302703U_ABST
    Figure CN224302703U_ABST
Patent Text Reader

Abstract

The utility model discloses a kind of metal recycling smelting furnaces, including outer frame, machine case, crucible smelting cavity, auxiliary smelting mechanism, turnover mechanism, induction coil and auxiliary unloading mechanism, the left and right sides of machine case are all fixed with support shaft, support shaft is rotatably connected with outer frame, auxiliary unloading mechanism for driving machine case to rotate and tilt is installed on outer frame, crucible smelting cavity is fixed in machine case, induction coil is installed on the outside of crucible smelting cavity, discharge port is installed on the upper end of crucible smelting cavity, auxiliary smelting mechanism is installed on the side of machine case, turnover mechanism for driving auxiliary smelting mechanism to overturn is installed on the side of machine case.The utility model smelts while stirring, so that heating is more uniform, smelting efficiency is higher;Inclined discharge is convenient, saves manpower.
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Description

Technical Field

[0001] This utility model relates to the field of smelting furnace technology, and in particular to a metal recycling smelting furnace. Background Technology

[0002] When recycling scrap metal, a smelting furnace is often required for melting. Chinese patent CN205245799U discloses a metal smelting furnace, which includes a cylindrical inner liner and an outer shell. The inner cavity of the outer shell is conical, wider at the top and narrower at the bottom. The upper end of the inner cavity of the outer shell is connected to...

[0003] A sealing ring is provided at the gap of the inner liner, and a pull-out lifting ring is provided at the upper end of the sealing ring. The beneficial effects of this utility model of a metal smelting furnace are: by designing the inner liner and the outer shell as separate parts for easy disassembly, when cleaning the furnace body, only the sealing ring needs to be pulled out and the inner liner lifted out. This not only makes disassembly convenient but also reduces labor intensity, which is very beneficial to production.

[0004] The aforementioned patents only allow for static melting and lack a stirring function, which can easily lead to uneven heating and affect melting efficiency. In addition, the patents do not have a tilting discharge function, making it troublesome and labor-intensive to remove the high-temperature molten metal from the furnace after melting. Therefore, in view of the above situation, there is an urgent need to develop a metal recycling melting furnace that can stir during melting, resulting in more uniform heating, higher melting efficiency, convenient tilting discharge, and labor saving, in order to overcome the shortcomings of current practical applications and meet current needs. Utility Model Content

[0005] The purpose of this invention is to provide a metal recycling smelting furnace to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A metal recycling smelting furnace includes an outer frame, a housing, a crucible melting chamber, an auxiliary smelting mechanism, a tilting mechanism, an induction coil, and an auxiliary feeding mechanism. Support shafts are fixed to both sides of the housing, and these support shafts are rotatably connected to the outer frame. An auxiliary feeding mechanism for rotating and tilting the housing is mounted on the outer frame. A crucible melting chamber is fixed inside the housing, and an induction coil is mounted on the outer side of the crucible melting chamber. A drain port is mounted on the upper end of the crucible melting chamber. An auxiliary smelting mechanism is mounted on one side of the housing. The surface is equipped with a turning mechanism for driving the auxiliary melting mechanism to turn. The auxiliary melting mechanism includes: a movable frame, a first motor, a first gear, a second gear, a ceramic stirring rod, and a rotating shaft. The lower end of the movable frame is fixed with a rotating shaft, which is rotatably connected to the side of the machine housing. The movable frame is fixed with a first motor. A first gear is provided on one side of the first motor and meshes with it. A second gear is provided on one side of the first gear and meshes with it. The second gear is fixed to the ceramic stirring rod, which is rotatably connected to the movable frame.

[0008] Preferably, the flipping mechanism includes a second motor, a third gear, and a fourth gear. The second motor is fixed to the side of the housing, the third gear is fixed on the output shaft of the second motor, and a fourth gear meshing with the third gear is provided on one side of the third gear. The fourth gear is fixed on the rotating shaft.

[0009] Preferably, the auxiliary feeding mechanism includes a third motor, a fifth gear, and a sixth gear. The third motor is fixed to the outer frame, the fifth gear is fixed to the output shaft of the third motor, a sixth gear is provided on one side of the fifth gear to mesh with it, and the sixth gear is fixed to the support shaft.

[0010] Preferably, a PLC controller is mounted on the outer frame, and the first motor, the second motor, the induction coil, and the third motor are electrically connected to the PLC controller.

[0011] The beneficial effects of this utility model are as follows: In use, scrap metal is added to the crucible melting chamber. An induction coil is activated to generate eddy currents in the scrap metal, thus melting it. Simultaneously, a second motor drives the third and fourth gears to rotate. The fourth gear drives the rotating shaft and movable frame to rotate, and the movable frame drives a ceramic stirring rod to be inserted into the crucible melting chamber. A first motor then drives the first gear, second gear, and ceramic stirring rod to rotate, stirring the molten metal in the crucible melting chamber, making the heating more uniform and improving melting efficiency. After melting, a tilting mechanism removes the auxiliary melting mechanism from the crucible melting chamber. Then, a third motor drives the fifth and sixth gears to rotate slowly. The sixth gear rotates the support shaft and the casing, causing the crucible melting chamber to slowly tilt, allowing the molten metal to drain from the outlet. In summary, this utility model achieves simultaneous stirring during melting, resulting in more uniform heating and higher melting efficiency; the tilting discharge is convenient and saves manpower. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0013] Figure 2 This is a schematic diagram of the usage state of this utility model.

[0014] Figure 3 This is a schematic diagram of the material feeding state of this utility model.

[0015] Figure 4 This is a partial structural schematic diagram of the present invention.

[0016] Figure 5 This is an internal sectional view of the chassis in this utility model.

[0017] Legend:

[0018] 1. Outer frame; 2. Chassis; 201. Support shaft; 3. Crucible melting chamber; 301. Drain port; 4. Auxiliary melting mechanism; 401. Movable frame; 402. First motor; 403. First gear; 404. Second gear; 405. Ceramic stirring rod; 406. Rotating shaft; 5. Tilting mechanism; 501. Second motor; 502. Third gear; 503. Fourth gear; 6. Induction coil; 7. Auxiliary feeding mechanism; 701. Third motor; 702. Fifth gear; 703. Sixth gear; 8. PLC controller. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0020] Specific implementation examples are given below.

[0021] See Figures 1-5 In this embodiment of the present invention, a metal recycling smelting furnace includes an outer frame 1, a housing 2, a crucible smelting chamber 3, an auxiliary smelting mechanism 4, a tilting mechanism 5, an induction coil 6, and an auxiliary feeding mechanism 7. Support shafts 201 are fixed on both the left and right sides of the housing 2, and the support shafts 201 are rotatably connected to the outer frame 1. The auxiliary feeding mechanism 7, used to drive the housing 2 to rotate and tilt, is installed on the outer frame 1. The crucible smelting chamber 3 is fixed inside the housing 2, and an induction coil 6 is installed on the outer side of the crucible smelting chamber 3. A drain port 301 is installed on the upper end of the crucible smelting chamber 3. The auxiliary smelting mechanism 4 is installed on one side of the housing 2, and a tilting mechanism 5, used to drive the auxiliary smelting mechanism 4 to tilt, is installed on the side of the housing 2.

[0022] The auxiliary melting mechanism 4 includes: a movable frame 401, a first motor 402, a first gear 403, a second gear 404, a ceramic stirring rod 405, and a rotating shaft 406. The lower end of the movable frame 401 is fixed with the rotating shaft 406, which is rotatably connected to the side of the casing 2. The first motor 402 is fixed on the movable frame 401. A first gear 403 meshes with the first motor 402 on one side, and a second gear 404 meshes with the first gear 403 on one side. The second gear 404 is fixed to the ceramic stirring rod 405, which is rotatably connected to the movable frame 401. In use, the ceramic stirring rod 405 is inserted into the crucible melting chamber 3, and the first motor 402 drives the first gear 403, the second gear 404, and the ceramic stirring rod 405 to rotate. The ceramic stirring rod 405 stirs the molten metal in the crucible melting chamber 3, making it more evenly heated.

[0023] The flipping mechanism 5 includes a second motor 501, a third gear 502, and a fourth gear 503. The second motor 501 is fixed to the side of the housing 2. The third gear 502 is fixed on the output shaft of the second motor 501. A fourth gear 503 is provided on one side of the third gear 502 and meshes with it. The fourth gear 503 is fixed on the rotating shaft 406. In use, the second motor 501 drives the third gear 502 and the fourth gear 503 to rotate, and the fourth gear 503 drives the rotating shaft 406 and the movable frame 401 to rotate.

[0024] The auxiliary feeding mechanism 7 includes a third motor 701, a fifth gear 702, and a sixth gear 703. The third motor 701 is fixed to the outer frame 1. The fifth gear 702 is fixed on the output shaft of the third motor 701. The sixth gear 703 is provided on one side of the fifth gear 702 and meshes with it. The sixth gear 703 is fixed to the support shaft 201. In use, the third motor 701 drives the fifth gear 702 and the sixth gear 703 to rotate slowly. The rotation of the sixth gear 703 drives the support shaft 201 and the housing 2 to rotate. The housing 2 drives the crucible melting chamber 3 to rotate and tilt slowly, so that the molten metal in the crucible melting chamber 3 is discharged from the drain port 301.

[0025] A PLC controller 8 is installed on the outer frame 1. The first motor 402, the second motor 501, the induction coil 6 and the third motor 701 are electrically connected to the PLC controller 8 for control purposes.

[0026] Working principle: In use, scrap metal is added to the crucible melting chamber 3. The induction coil 6 is activated, causing eddy currents in the scrap metal, thus melting it. Simultaneously, the second motor 501 drives the third gear 502 and the fourth gear 503 to rotate. The fourth gear 503 drives the rotating shaft 406 and the movable frame 401 to rotate. The movable frame 401 then drives the ceramic stirring rod 405 to be inserted into the crucible melting chamber 3. The first motor 402 then drives the first gear 403, the second gear 404, and the ceramic stirring rod 405... 05 rotates, and the ceramic stirring rod 405 stirs the molten metal in the crucible melting chamber 3, making it more evenly heated and improving the melting efficiency. After melting, the auxiliary melting mechanism 4 is moved out of the crucible melting chamber 3 by the flipping mechanism 5. Then, the fifth gear 702 and the sixth gear 703 are slowly rotated by the third motor 701. The rotation of the sixth gear 703 drives the support shaft 201 and the machine box 2 to rotate. The machine box 2 drives the crucible melting chamber 3 to slowly rotate and tilt, so that the molten metal in the crucible melting chamber 3 is discharged from the drain port 301.

[0027] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A metal recycling smelting furnace, characterized in that, The system includes an outer frame (1), a housing (2), a crucible melting chamber (3), an auxiliary melting mechanism (4), a tilting mechanism (5), an induction coil (6), and an auxiliary feeding mechanism (7). Support shafts (201) are fixed on both the left and right sides of the housing (2), and the support shafts (201) are rotatably connected to the outer frame (1). An auxiliary feeding mechanism (7) for rotating and tilting the housing (2) is installed on the outer frame (1). A crucible melting chamber (3) is fixed inside the housing (2), and an induction coil (6) is installed on the outside of the crucible melting chamber (3). A drain port (301) is installed at the upper end of the crucible melting chamber (3). An auxiliary melting mechanism (4) is installed on one side of the housing (2), and a tilting mechanism for rotating the auxiliary melting mechanism (4) is installed on the side of the housing (2). The auxiliary smelting mechanism (4) includes: a movable frame (401), a first motor (402), a first gear (403), a second gear (404), a ceramic stirring rod (405), and a rotating shaft (406). The lower end of the movable frame (401) is fixed with a rotating shaft (406), which is rotatably connected to the side of the machine box (2). The movable frame (401) is fixed with a first motor (402). A first gear (403) meshes with the first motor (402) on one side, and a second gear (404) meshes with the first gear (403) on one side. The second gear (404) is fixed on the ceramic stirring rod (405), which is rotatably connected to the movable frame (401).

2. The metal recycling smelting furnace according to claim 1, characterized in that, The flipping mechanism (5) includes a second motor (501), a third gear (502) and a fourth gear (503). The second motor (501) is fixed to the side of the housing (2). The third gear (502) is fixed on the output shaft of the second motor (501). A fourth gear (503) meshes with the third gear (502) on one side. The fourth gear (503) is fixed on the rotating shaft (406).

3. The metal recycling smelting furnace according to claim 2, characterized in that, The auxiliary feeding mechanism (7) includes a third motor (701), a fifth gear (702) and a sixth gear (703). The third motor (701) is fixed on the outer frame (1). The fifth gear (702) is fixed on the output shaft of the third motor (701). The sixth gear (703) meshes with the fifth gear (702) on one side. The sixth gear (703) is fixed on the support shaft (201).

4. The metal recycling smelting furnace according to claim 3, characterized in that, A PLC controller (8) is installed on the outer frame (1), and the first motor (402), the second motor (501), the induction coil (6) and the third motor (701) are electrically connected to the PLC controller (8).