Anti-oxidation device of magnesium alloy smelting furnace

Abstract

The utility model discloses an anti-oxidation device for a magnesium alloy smelting furnace, which relates to the technical field of magnesium alloy smelting and comprises a furnace body, a mixing mechanism is mounted at the top of the furnace body, a sealing mechanism is mounted at the top of the mixing mechanism, the mixing mechanism comprises a crucible and a top cover, the crucible is mounted inside the furnace body, and the top cover is mounted on the top of the furnace body. The top cover is installed at the top of the furnace body, a liquid outlet pipe penetrates through the periphery of the crucible and is close to the top end, a sealing groove and a pipe groove are formed in the positions, close to the edge, of the bottom of the top cover respectively, and two handles are fixedly installed on the periphery of the top cover; a stirring rod penetrates through the middle position of the upper end and the lower end of the top cover and is movably mounted in the crucible; a rocking disc is mounted at the top of the stirring rod; by means of the structure, flux adding is facilitated, the flux and molten liquid are mixed, contact between oxygen and the molten liquid is reduced, meanwhile, the molten liquid can be prevented from being splashed out in the smelting process, and the internal sealing performance is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of magnesium alloy smelting, in particular to an anti-oxidation device for a magnesium alloy smelting furnace. Background Art

[0002] Magnesium alloy is an alloy with a low melting point and is easily reacted with oxygen during the smelting process. In order to prevent oxidation, anti-oxidation covering flux or SF6 and other gas protection are usually added during the smelting process. These fluxes or protective gases can form a protective film on the surface of the magnesium melt, isolating the oxygen in the air from contacting the melt.

[0003] When the existing anti-oxidation device of the magnesium alloy smelting furnace is in use, the flux is added to the melt unevenly, which makes it inconvenient to fully mix the melt and the flux, reducing the anti-oxidation effect. In addition, the melt is prone to splashing during the smelting process, reducing the internal sealing, which has a certain impact on actual use. Utility Model Content

[0004] The utility model aims to provide an anti-oxidation device for a magnesium alloy smelting furnace, so as to solve the problems that, when the existing anti-oxidation device for a magnesium alloy smelting furnace is in use, the flux is not added uniformly to the molten metal, making it inconvenient to fully mix the molten metal with the flux, thereby reducing the anti-oxidation effect, and the molten metal is easily splashed during the smelting process, thereby reducing the internal sealing.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: an anti-oxidation device for a magnesium alloy smelting furnace, comprising a furnace body, a mixing mechanism is installed on the top of the furnace body, a sealing mechanism is installed on the top of the mixing mechanism, the mixing mechanism comprises a crucible and a top cover, the crucible is installed inside the furnace body, the top cover is installed on the top of the furnace body, a liquid outlet pipe is installed through the periphery of the crucible near the top end, a sealing groove and a pipe groove are respectively opened at the bottom of the top cover near the edge, two handles are fixedly installed on the periphery of the top cover, a stirring rod is movably installed through the upper and lower ends of the top cover and located inside the crucible, a rocking plate is installed on the top of the stirring rod, a hopper is installed through the top of the top cover near the edge, a valve is installed in the middle of the hopper, three fastening bolts are movably installed through the periphery of the top cover, a first knob is fixedly installed on the outer end of the fastening bolt, and a pressing block is movably installed at the inner end of the fastening bolt and located inside the top cover.

[0006] As a further solution of the utility model, the top of the crucible is located in the sealing groove in a clamping arrangement, and the liquid outlet pipe is located in the pipe groove in a matching arrangement.

[0007] As a further solution of the utility model, the stirring rod passes through the upper and lower ends of the top cover and is movably and rotatably arranged, and the bottom end of the hopper and the inside of the crucible are connected to each other.

[0008] As a further solution of the utility model, the fastening bolt passes through the interior of the top cover and is threadedly connected, and the pressure block is located at the inner end of the fastening bolt and is rotatably arranged through a bearing.

[0009] As a further solution of the utility model, the sealing mechanism includes a fixed block, which is fixedly installed on the top of the top cover, and a screw is movably installed on the top of the fixed block. A second knob is fixedly installed on the top of the screw, and a lifting plate is movably installed which passes through the interior of the top cover and is sleeved on the periphery of the screw.

[0010] As a further solution of the utility model, the screw rod is located on the top of the fixed block and is movably rotatable, and the lifting plate is sleeved on the outer periphery of the screw rod and is threadedly connected.

[0011] As a further solution of the utility model, the outer side of the lifting plate and the inner wall of the crucible are matched with each other, and the width of the lifting plate is greater than the diameter of the liquid outlet pipe.

[0012] The beneficial effects of the utility model are as follows:

[0013] (1) The present invention provides a mixing mechanism to prevent oxidation of the covering flux added to the hopper, the opening and closing of the valve allows the flux to be added to the melt, the melt and the flux are mixed by the rotation of the stirring rod to prevent the melt from being oxidized, and the addition of the flux is facilitated, the pressing block is driven to slide by the fastening bolt to press the crucible, so that the top cover and the crucible are fixed to each other, thereby improving the internal sealing;

[0014] (2) The present invention provides a sealing mechanism, and the screw drives the lifting plate to slide downward to close the mouth of the liquid outlet pipe, which can prevent the melt from splashing out during the smelting process and further improve the internal sealing. The lifting plate slides upward to open the mouth of the liquid outlet pipe to facilitate the pouring of the melt. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the anti-oxidation device for magnesium alloy smelting furnace of the utility model;

[0016] Figure 2 It is a schematic diagram of the internal structure of the mixing mechanism in the anti-oxidation device of the magnesium alloy smelting furnace of the utility model;

[0017] Figure 3 It is a schematic diagram of the back structure of the sealing mechanism in the anti-oxidation device of the magnesium alloy smelting furnace of the utility model;

[0018] Figure 4 It is a side view of the anti-oxidation device of the magnesium alloy smelting furnace of the utility model.

[0019] In the figure: 1. furnace body; 2. mixing mechanism; 3. sealing mechanism; 4. crucible; 5. top cover; 6. liquid outlet pipe; 7. sealing groove; 8. pipe groove; 9. handle; 10. stirring rod; 11. rocking plate; 12. hopper; 13. valve; 14. fastening bolt; 15. first knob; 16. pressure block; 17. fixing block; 18. screw; 19. second knob; 20. lifting plate. DETAILED DESCRIPTION

[0020] The technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] Example 1

[0022] like Figure 1-4 As shown, the anti-oxidation device of the magnesium alloy smelting furnace comprises a furnace body 1, a mixing mechanism 2 is installed on the top of the furnace body 1, a sealing mechanism 3 is installed on the top of the mixing mechanism 2, the mixing mechanism 2 comprises a crucible 4 and a top cover 5, the crucible 4 is installed inside the furnace body 1, the top cover 5 is installed on the top of the furnace body 1, a liquid outlet pipe 6 is installed through the periphery of the crucible 4 near the top, a sealing groove 7 and a pipe groove 8 are respectively provided at the bottom of the top cover 5 near the edge, two handles 9 are fixedly installed on the periphery of the top cover 5, a stirring rod 10 is movably installed through the upper and lower ends of the top cover 5 and located inside the crucible 4, a rocking plate 11 is installed on the top of the stirring rod 10, a hopper 12 is installed through the top of the top cover 5 near the edge, a valve 13 is installed in the middle of the hopper 12, three fastening bolts 14 are movably installed through the periphery of the top cover 5, a first knob 15 is fixedly installed on the outer end of the fastening bolt 14, and a pressing block 16 is movably installed at the inner end of the fastening bolt 14 and located inside the top cover 5.

[0023] In this embodiment, the top of the crucible 4 is located in the sealing groove 7 and is clamped, the liquid outlet pipe 6 is located in the pipe groove 8 and is matched with each other, and the top cover 5 is located on the top of the furnace body 1, so that the top of the crucible 4 is clamped into the sealing groove 7 to make the crucible 4 sealed.

[0024] In this embodiment, the stirring rod 10 passes through the upper and lower ends of the top cover 5 and is movably rotatable. The bottom end of the hopper 12 is interconnected with the interior of the crucible 4. The anti-oxidation covering flux is added through the hopper 12. The stirring rod 10 rotates to fully mix the magnesium alloy melt and the flux to form a protective film.

[0025] In this embodiment, the fastening bolt 14 passes through the interior of the top cover 5 and is threadedly connected. The pressing block 16 is located at the inner end of the fastening bolt 14 and is rotatably arranged through a bearing. The fastening bolt 14 drives the pressing block 16 to slide inward to press the edge of the crucible 4 to fix the top cover 5.

[0026] In this embodiment, the sealing mechanism 3 includes a fixed block 17, which is fixedly installed on the top of the top cover 5. A screw 18 is movably installed on the top of the fixed block 17. A second knob 19 is fixedly installed on the top of the screw 18. A lifting plate 20 is movably installed passing through the interior of the top cover 5 and sleeved on the periphery of the screw 18. By rotating the second knob 19, the screw 18 drives the lifting plate 20 to slide up and down, thereby opening or closing the liquid outlet of the liquid outlet pipe 6, so that the interior is sealed to facilitate the pouring of the molten liquid.

[0027] The utility model is an anti-oxidation device for a magnesium alloy smelting furnace. When in use, the magnesium alloy is placed in a crucible 4, and the crucible 4 is heated by controlling a furnace body 1. When smelting, a top cover 5 is installed on the top of the furnace body 1 so that the top of the crucible 4 is inserted into a sealing groove 7, and a liquid outlet pipe 6 is located in a pipe groove 8. The three first knobs 15 are rotated respectively so that a fastening bolt 14 drives a pressing block 16 to slide inward under the action of a threaded connection, and the crucible 4 is pressed and fixed. Since the magnesium alloy is easy to react with oxygen, an anti-oxidation covering flux is added into a hopper 12, a valve 13 is opened to add the flux into the melt, and a stirring rod 10 is rotated by shaking a rocker 11 so that the flux is mixed with the melt to form a protective film, so as to isolate the oxygen in the air from contacting the melt. During the smelting process, the screw 18 is rotated by rotating a second knob 19, and a lifting plate 20 is driven to slide downward, so that the mouth of the liquid outlet pipe 6 is closed to prevent the melt from splashing out.

[0028] Example 2

[0029] Different from Example 1, in this embodiment, the screw rod 18 is located at the top of the fixed block 17 and is movably rotatable, and the lifting plate 20 is sleeved on the outer periphery of the screw rod 18 and is threadedly connected. The rotation of the screw rod 18 facilitates the up and down sliding adjustment of the lifting plate 20.

[0030] Example 3

[0031] Different from Example 2, in this embodiment, the outer side of the lifting plate 20 and the inner wall of the crucible 4 are matched with each other, the width of the lifting plate 20 is larger than the diameter of the liquid outlet pipe 6, and the lifting plate 20 slides downward to the pipe mouth of the liquid outlet pipe 6 to seal it to prevent the internal melt from splashing out and external air from entering.

Claims

1. An anti-oxidation device for a magnesium alloy smelting furnace, comprising a furnace body (1), a mixing mechanism (2) being installed on the top of the furnace body (1), a sealing mechanism (3) being installed on the top of the mixing mechanism (2), characterized in that: The mixing mechanism (2) comprises a crucible (4) and a top cover (5), wherein the crucible (4) is installed inside the furnace body (1), and the top cover (5) is installed on the top of the furnace body (1). A liquid outlet pipe (6) is installed through the periphery of the crucible (4) near the top end, and a sealing groove (7) and a pipe groove (8) are respectively provided at the bottom of the top cover (5) near the edge. Two handles (9) are fixedly installed on the periphery of the top cover (5), and a handle (9) is installed through the upper and lower ends of the top cover (5) at the center and located inside the crucible (4). A stirring rod (10) is movably installed, a rocking plate (11) is installed on the top of the stirring rod (10), a hopper (12) is installed through the top of the top cover (5) near the edge, a valve (13) is installed in the middle of the hopper (12), three fastening bolts (14) are movably installed through the periphery of the top cover (5), a first knob (15) is fixedly installed on the outer end of the fastening bolt (14), and a pressure block (16) is movably installed at the inner end of the fastening bolt (14) and located inside the top cover (5).

2. The anti-oxidation device for magnesium alloy smelting furnace according to claim 1, characterized in that: The top of the crucible (4) is located in the sealing groove (7) in a clamping arrangement, and the liquid outlet pipe (6) is located in the pipe groove (8) in a matching arrangement.

3. The anti-oxidation device for magnesium alloy smelting furnace according to claim 1, characterized in that: The stirring rod (10) penetrates the upper and lower ends of the top cover (5) and is movably rotatable, and the bottom end of the hopper (12) and the interior of the crucible (4) are connected to each other.

4. The anti-oxidation device for a magnesium alloy smelting furnace according to claim 1, characterized in that: The fastening bolt (14) penetrates the interior of the top cover (5) and is arranged in a threaded connection, and the pressing block (16) is located at the inner end of the fastening bolt (14) and is rotatably arranged through a bearing.

5. The anti-oxidation device for magnesium alloy smelting furnace according to claim 1, characterized in that: The sealing mechanism (3) comprises a fixed block (17), the fixed block (17) is fixedly mounted on the top of the top cover (5), a screw rod (18) is movably mounted on the top of the fixed block (17), a second knob (19) is fixedly mounted on the top of the screw rod (18), and a lifting plate (20) is movably mounted on the periphery of the screw rod (18) and passes through the interior of the top cover (5).

6. The anti-oxidation device for magnesium alloy smelting furnace according to claim 5, characterized in that: The screw rod (18) is located on the top of the fixed block (17) and is movably rotatable, and the lifting plate (20) is sleeved on the outer periphery of the screw rod (18) and is threadedly connected.

7. The anti-oxidation device for a magnesium alloy smelting furnace according to claim 5, characterized in that: The outer side of the lifting plate (20) and the inner wall of the crucible (4) are arranged to match each other, and the width of the lifting plate (20) is greater than the diameter of the liquid outlet pipe (6).

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