一种黑色金属铸造用熔化炉
By using an electromagnetic coil driven by an alternating current power supply, a spiral pressing device, and a paddle stirring, the problem of low melting efficiency in ferrous metal casting melting furnaces is solved. This achieves effective pressing of unmelted metal blocks and homogenization of the molten pool, thereby improving the overall melting rate and the uniformity of metal composition.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGJIN COUNTY TIANYI IND CO LTD
- Filing Date
- 2025-07-15
- Publication Date
- 2026-07-17
AI Technical Summary
In existing ferrous metal casting melting furnaces, the melting efficiency of metal raw materials in the furnace is low, and unmelted blocks cannot be effectively pressed into the core area of the high-temperature molten pool, resulting in a sluggish overall melting rate.
An electromagnetic coil driven by an alternating current power supply generates eddy current heating. Combined with a screw pressing device and a paddle stirring, the metal is melted through electromagnetic induction heating and mechanical force. The screw pressing device drives the pressure rod to press the unmelted metal block, and the paddles achieve horizontal swirling and vertical disturbance to promote uniform melting.
It improves the efficiency of metal melting, ensures that unmelted metal blocks can effectively enter the core area of the high-temperature molten pool, avoids uneven local pressure, and promotes heat conduction and uniformity of metal composition.
Smart Images
Figure CN224517361U_ABST
Abstract
Claims
1. A melting furnace for ferrous foundries, comprising a base body (1) inside which an alternating current power supply is provided, characterised in that, An outer furnace (2) is fixed to the top of the base (1). An electromagnetic coil (3) is spirally fixed to the inner wall of the outer furnace (2). The electromagnetic coil (3) is connected to an alternating current power supply wire. An inner furnace (4) is placed in the center of the outer furnace (2). A pressing device (5) is provided on the top of the inner furnace (4). The pressing device (5) is raised and lowered by lifting devices (6) on both sides. The lifting devices (6) are installed on the base (1). The pressing device (5) includes a top plate (501), a motor (502), a fixed cylinder (503), a track groove (504), a central shaft (505), a connecting plate (506), a guide ring (507), a guide shaft (508), a sliding shaft (509), a bottom plate (510), and a pressing plate (511). The top plate (501) is installed on the top of the lifting device (6). The motor (502) is fixedly installed at the center of the top of the top plate (501), and the fixed cylinder (503) is welded to the center of the bottom. The fixed cylinder (503) has a continuous wavy track groove (504) on its outer circumference. The bottom output end of the motor (502) is coaxially connected. There is a vertical central shaft (505), which rotates inside a fixed cylinder (503). A horizontal connecting plate (506) is fixed at the bottom of the central shaft (505). The two ends of the connecting plate (506) are fixed with identical guide rings (507). A vertically sliding guide shaft (508) is provided inside the guide ring (507). A sliding shaft (509) is radially fixed at the top of the guide shaft (508). The sliding shaft (509) slides along the track groove (504). A base plate (510) is fixedly connected between the bottoms of the two guide shafts (508). A horizontal pressure plate (511) is fixed at the bottom of the base plate (510).
2. A melting furnace for ferrous metals according to claim 1, characterized in that, The bottom of the pressure plate (511) is fixed with multiple vertical pressure rods (512).
3. A melting furnace for ferrous metals according to claim 1, characterized in that, A vertical propeller shaft (513) is fixed at the center of the bottom surface of the base plate (510), and a propeller blade (514) is fixed at the bottom of the propeller shaft (513).
4. A melting furnace for ferrous metals according to claim 1, characterized in that, The lifting device (6) includes two cylinders (601), which are located on both sides of the outer furnace (2) and are installed at the bottom with the base (1) and at the top with the bottom of the top plate (501).
5. A melting furnace for ferrous metals according to claim 4, characterized in that, The top and bottom of the cylinder (601) are hinged to the top plate (501) and the base (1) respectively. A guide plate (602) is vertically fixed on the base (1) outside the cylinder (601). The guide plate (602) has an L-shaped structure and an L-shaped slide (603) is opened on the guide plate (602). Rollers (604) are installed at both ends of the top plate (501) through shafts. The rollers (604) slide along the slide (603).
6. A melting furnace for ferrous metals according to claim 1, characterized in that, The outer furnace (2) has multiple positioning holes (201) at its bottom, and the inner furnace (4) has multiple positioning columns (401) fixed at its bottom. The positioning columns (401) are inserted into the positioning holes (201) for positioning, so that the inner furnace (4) and the outer furnace (2) are aligned.