Aluminum-iron alloy preparation heating device

Abstract

The utility model relates to an aluminum-iron alloy preparation heating device which comprises a double-layer furnace, the double-layer furnace comprises an outer layer furnace wall and an inner layer crucible, an outer cavity is formed between the outer layer furnace wall and the inner layer crucible, an electric heating body surrounding the inner layer crucible is arranged in the outer cavity, a furnace cover is arranged on the top of the double-layer furnace, an annular fuel pipe is arranged on the furnace cover, and the fuel pipe is connected with the outer layer furnace wall. The fuel pipe is provided with a plurality of combustion nozzles arranged in a circumferential array. According to the aluminum-iron alloy preparation heating device, the direct heating mode and the smelting kettle external heating mode are adopted, so that the center and the edge of the smelting kettle are heated uniformly, and the smelting efficiency is improved.

Description

Technical Field

[0001] The utility model relates to metal smelting and casting technology, in particular to a heating device for preparing aluminum-iron alloy. Background Art

[0002] Melting refers to putting metal materials and other auxiliary materials into a heating furnace to melt and temper them. The materials undergo certain physical and chemical changes in the furnace at high temperature (1300-1600K). Different metal proportions produce different alloy properties. High-performance synthetic metals are necessities for special industries and precision manufacturing. The preparation of alloys requires more precise temperature control and element proportions.

[0003] In recent years, my country's alloy smelting industry has developed rapidly, and the number of enterprises has increased rapidly, but the scale is uneven. From the technical level of smelting equipment, the use of external heating and central heating alone will result in uneven smelting heating and low smelting efficiency. Utility Model Content

[0004] The utility model aims to provide a heating device for preparing aluminum-iron alloy, which is used to solve the problems of uneven smelting heating and low smelting efficiency during the preparation of iron-aluminum alloy.

[0005] In order to solve the above problems, the utility model provides an aluminum-iron alloy preparation heating device, including a double-layer furnace, the double-layer furnace including an outer furnace wall and an inner crucible, an outer cavity is formed between the outer furnace wall and the inner crucible, an electric heating body surrounding the inner crucible is arranged in the outer cavity, a furnace cover is provided on the top of the double-layer furnace, an annular fuel pipe is provided under the furnace cover, and a plurality of combustion nozzles in a circular array are arranged on the fuel pipe.

[0006] The aluminum-iron alloy preparation heating device provided by the utility model also has the following technical features:

[0007] Furthermore, shaft tubes are symmetrically fixedly connected to both sides of the outer furnace wall, the shaft tubes are rotatably connected to brackets, a driven gear is fixedly connected to the shaft tube on one side of the outer furnace wall, a driving motor is fixedly connected to the bracket, a driving shaft of the driving motor is fixedly connected to a driving gear, and the driving gear is meshed with the driven gear.

[0008] Furthermore, the bracket on the other side of the outer furnace wall is hinged to the furnace cover, and a right-angle curved arm is fixedly connected to the furnace cover, one end of the right-angle curved arm is connected to the top of the furnace cover, and the other end of the right-angle curved arm is fixedly connected to the hinge of the furnace cover. A support plate is fixedly connected to the bracket, and an oblong slide groove is provided on the right-angle curved arm. A cylindrical slider is slidably connected to the slide groove, and a pneumatic device is fixedly connected to the slider, and the pneumatic device is fixedly connected to the support plate.

[0009] Furthermore, the outer cavity is filled with fire-resistant heat-insulating materials.

[0010] Furthermore, the furnace cover is provided with an exhaust hole and an explosion-proof valve.

[0011] Furthermore, a weighing sensor is installed at the bottom of the bracket.

[0012] Furthermore, a liquid pouring nozzle is provided on the double-layer furnace.

[0013] The utility model has the following beneficial effects: the aluminum-iron alloy preparation heating device described in the present application adopts two methods: direct heating and external heating of the smelting kettle, so that the center and edge of the smelting kettle are heated evenly, thereby improving the smelting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a partial cross-sectional axonometric schematic diagram of the heating device for preparing aluminum-iron alloy according to an embodiment of the utility model;

[0015] Figure 2 This is an axonometric schematic diagram of an aluminum-iron alloy preparation heating device according to an embodiment of the utility model;

[0016] Figure 3 It is a front cross-sectional schematic diagram of a heating device for preparing aluminum-iron alloy according to an embodiment of the utility model.

[0017] (1-outer furnace wall, 2-inner crucible, 3-outer cavity, 4-electric heating body, 5-furnace cover, 6-fuel pipe, 7-combustion nozzle, 8-axis tube, 9-bracket, 10-driven gear, 11-driving motor, 12-driving gear, 13-right angle arm, 14-support plate, 15-slide, 16-exhaust hole, 17-explosion-proof valve, 18-weighing sensor, 19-liquid pouring nozzle, 20-sliding block, 21-pneumatic device) DETAILED DESCRIPTION

[0018] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict.

[0019] like Figures 1 to 3 In the embodiment of the aluminum-iron alloy preparation heating device of the utility model shown, the aluminum-iron alloy preparation heating device includes a double-layer furnace, the double-layer furnace includes an outer furnace wall 1 and an inner crucible 2, an outer cavity 3 is formed between the outer furnace wall 1 and the inner crucible 2, an electric heating body 4 is arranged around the inner crucible 2 in the outer cavity 3, a furnace cover 5 is provided on the top of the double-layer furnace, an annular fuel pipe 6 is provided under the furnace cover 5, and a plurality of combustion nozzles 7 in a circular array are provided on the fuel pipe 6.

[0020] Specifically, the furnace cover 5 is opened to put the alloy raw material to be prepared into the furnace, the furnace cover 5 is closed and the electric heating body 4 and the natural gas combustion nozzle 7 are started at the same time. The outer electric heating body 4 is conducive to the melting of the metal at the edge of the furnace, and the combustion nozzle 7 melts the intermediate metal, thereby accelerating the melting rate of the metal raw material. After the raw materials in the furnace are melted, the power of the electric heating body 4 is adjusted to keep the molten metal in the furnace in an insulated state to save energy. The fuel pipe 6 is connected to the gas and oxygen supply facilities outside the device.

[0021] In one embodiment of the present application, preferably, shaft tubes 8 are symmetrically fixedly connected to both sides of the outer furnace wall 1, and brackets 9 are rotatably connected to the shaft tubes 8. A driven gear 10 is fixedly connected to the shaft tubes 8 on one side of the outer furnace wall 1, and a drive motor 11 is fixedly connected to the bracket 9. The drive shaft of the drive motor 11 is fixedly connected to a drive gear 12, and the drive gear 12 is meshed with the driven gear 10. The shaft tubes 8 are connected to the outer cavity 3 for passing a power supply cable for supplying power to the electric heating body 4, and the rotating double-layer furnace is used to pour the prepared alloy solution out of the smelting furnace to avoid safety hazards during manual dumping operations.

[0022] In one embodiment of the present application, preferably, the bracket 9 on the other side of the outer furnace wall 1 is hinged to the furnace cover 5, and a right-angle curved arm 13 is fixedly connected to the furnace cover 5, one end of the right-angle curved arm 13 is connected to the top of the furnace cover 5, and the other end of the right-angle curved arm 13 is fixedly connected to the hinge of the furnace cover 5, and a support plate 14 is fixedly connected to the bracket 9, and an oblong slide groove 15 is provided on the right-angle curved arm 13, and a cylindrical slider 20 is slidably connected to the slide groove 15, and the slider 20 is fixedly connected to the pneumatic device 21, and the pneumatic device 21 is fixedly connected to the support plate 14. When the furnace cover 5 is opened, the gas of the pneumatic device 21 The pneumatic push rod retracts into the pneumatic device 15, pulling the right-angled curved arm 13 to make the furnace cover 5 rotate and open around the hinged support on the bracket 9. When closing the furnace cover 5, the pneumatic push rod of the pneumatic device 21 extends out to push the right-angled curved arm 13 to drive the furnace cover 5 to close, so as to reduce the heat loss during the melting process, and also facilitate the pouring of the molten metal in the double-layer furnace. Since the pneumatic device 21 is fixed on the support plate 14, when the pneumatic push rod of the pneumatic device 21 pulls the right-angled curved arm 13, in order to ensure that the pneumatic push rod can smoothly open and close the furnace cover 5, the slider 20 connected to the top of the pneumatic push rod needs to slide and rotate in the slide groove 15.

[0023] In one embodiment of the present application, preferably, the outer cavity 3 is filled with refractory insulation material for heat preservation and insulation, reducing heat loss of the external heating electric heater 4 and avoiding safety hazards caused by excessive temperature of the outer furnace wall 1.

[0024] In one embodiment of the present application, preferably, the furnace cover 5 is provided with an exhaust hole 16 and an explosion-proof valve 17 for discharging carbon dioxide and water vapor generated by the combustion of gas to avoid the risk of explosion caused by excessive pressure in the furnace.

[0025] In one embodiment of the present application, preferably, a weighing sensor 18 is installed at the bottom of the bracket 9 to control the mass ratio of the raw materials during the adding process, so as to facilitate the weighing of other molten metal liquids added.

[0026] In one embodiment of the present application, preferably, a pouring nozzle 19 is provided on the double-layer furnace to facilitate pouring of the molten metal liquid.

[0027] In summary, the aluminum-iron alloy preparation heating device in the above-mentioned embodiment of the utility model, specifically, opens the furnace cover 5 to put the alloy raw material to be prepared into the furnace, closes the furnace cover 5 and starts the electric heating body 4 and the combustion nozzle 7 at the same time, the peripheral electric heating body 4 is conducive to the melting of the metal at the edge of the furnace, and the combustion nozzle 7 melts the intermediate metal, thereby accelerating the melting rate of the metal raw material. After the raw materials in the furnace are melted, the power of the electric heating body 4 is adjusted to keep the molten metal in the furnace in an insulated state to save energy. The device adopts two methods: direct heating and crucible external heating, so that the center and edge of the crucible are heated evenly, thereby improving the smelting efficiency.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A heating device for preparing aluminum-iron alloy, characterized in that: The invention comprises a double-layer furnace, which comprises an outer furnace wall and an inner crucible, an outer cavity is formed between the outer furnace wall and the inner crucible, an electric heating body wound around the inner crucible is arranged in the outer cavity, a furnace cover is arranged on the top of the double-layer furnace, an annular fuel pipe is arranged on the furnace cover, and a plurality of combustion nozzles in a circular array are arranged on the fuel pipe.

2. The aluminum-iron alloy preparation heating device according to claim 1, characterized in that: The two sides of the outer furnace wall are symmetrically fixedly connected with shaft tubes, the shaft tubes are rotatably connected with brackets, a driven gear is fixedly connected to the shaft tube on one side of the outer furnace wall, a driving motor is fixedly connected to the bracket, a driving shaft of the driving motor is fixedly connected with a driving gear, and the driving gear is meshed with the driven gear.

3. The aluminum-iron alloy preparation heating device according to claim 2, characterized in that: The bracket on the other side of the outer furnace wall is hinged to the furnace cover, and a right-angle curved arm is fixedly connected to the furnace cover, one end of the right-angle curved arm is connected to the top of the furnace cover, and the other end of the right-angle curved arm is fixedly connected to the hinge of the furnace cover, and a support plate is fixedly connected to the bracket, and an oblong slide groove is provided on the right-angle curved arm, and a cylindrical slider is slidably connected to the slide groove, and the slider is fixedly connected to a pneumatic device, and the pneumatic device is fixedly connected to the support plate.

4. The aluminum-iron alloy preparation heating device according to claim 1, characterized in that: The outer cavity is filled with fire-resistant heat-insulating materials.

5. The aluminum-iron alloy preparation heating device according to claim 1, characterized in that: The furnace cover is provided with an exhaust hole and an explosion-proof valve.

6. The aluminum-iron alloy preparation heating device according to claim 2, characterized in that: A weighing sensor is installed at the bottom of the bracket.

7. The aluminum-iron alloy preparation heating device according to claim 1, characterized in that: The double-layer furnace is provided with a liquid pouring nozzle.

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