Smelting device for electroslag ingot

Abstract

The smelting device comprises a bottom plate, a supporting table is fixedly connected to the upper end of the right side of the bottom plate, a mounting plate is arranged in the supporting table, a single chip microcomputer is arranged at the lower end of the right side of the supporting table, a water cooling crystallizer is arranged on the left side of the bottom plate, and the smelting device further comprises an air injection mechanism. The air blowing mechanism comprises an air blowing pump, a worm, a rotating seat, a semi-worm gear and an air spraying head, the air blowing pump is arranged on the right side of the upper end of the mounting plate, the lower end of the mounting plate is rotationally connected with the worm, the rotating seat is fixedly connected to the lower end of the mounting plate, the semi-worm gear is rotationally connected into the rotating seat through a pin shaft, and the air spraying head is arranged at the lower end of the semi-worm gear; according to the smelting device for the electroslag ingot, inert gas is sprayed to the spiral air duct through the air spraying mechanism, so that a low-oxygen area is formed at the upper end of the water-cooling crystallizer, then contact between molten metal and air is reduced, metal oxidation is prevented, and metal solidification is better.

Description

Technical Field

[0001] The utility model relates to the technical field of electroslag ingot melting, in particular to a melting device for electroslag ingots. Background Technique

[0002] An electroslag ingot is a metal ingot produced by the electroslag remelting process. Electroslag remelting uses the resistance heat generated when an electric current passes through a molten slag to gradually melt a consumable electrode. The molten metal droplets pass through the slag layer and gather in a water-cooled mold, where they solidify to form an ingot in the mold.

[0003] The traditional melting device for electroslag ingots mainly has a fixture on a vertically movable slide rail to hold a consumable electrode. The consumable electrode is placed into the water-cooled mold for electroslag ingot melting by the up and down movement of the slide rail.

[0004] This kind of melting device for electroslag ingots has the following disadvantages: during the melting process, the air is isolated from the metal solution by the crust on the surface of the metal solution, and the isolation effect is not good, which will cause metal oxidation and affect the solidification effect. We propose a melting device for electroslag ingots. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is to overcome the existing defects, and provide a melting device for electroslag ingots. An inert gas is sprayed into a spiral air duct through a jet mechanism to form a low-oxygen area at the upper end of the water-cooled mold, thereby reducing the contact between the molten metal and the air, preventing metal oxidation, and making the metal solidify better, which can effectively solve the problems in the background technique.

[0006] To achieve the above object, the utility model provides the following technical solution: A melting device for electroslag ingots, including a bottom plate. The upper right end of the bottom plate is fixedly connected with a support platform. An installation plate is arranged inside the support platform. A single-chip microcomputer is arranged at the lower right end of the support platform. A water-cooled mold is arranged on the left side of the bottom plate. It also includes a jet mechanism.

[0007] The jet mechanism: It includes a blowing pump, a worm, a rotating seat, a semi-worm gear and a jet head. The blowing pump is arranged at the upper right end of the installation plate. The lower end of the installation plate is rotatably connected with a worm. The lower end of the installation plate is fixedly connected with a rotating seat. A semi-worm gear is rotatably connected in the rotating seat through a pin shaft. A jet head is arranged at the lower end of the semi-worm gear. The semi-worm gear is meshed with the worm.

[0008] Among them: The input end of the single-chip microcomputer is electrically connected to an external power supply, and the input end of the blowing pump is electrically connected to the output end of the single-chip microcomputer. An inert gas is sprayed into a spiral air duct through the jet mechanism to form a low-oxygen area at the upper end of the water-cooled mold, thereby reducing the contact between the molten metal and the air, preventing metal oxidation, and making the metal solidify better.

[0009] Further, the jet mechanism further includes a second motor, which is arranged on the upper right side of the mounting plate. The output shaft of the second motor passes through the circular hole at the upper end of the mounting plate and is fixedly connected to the worm. The input end of the second motor is electrically connected to the output end of the single-chip microcomputer, and the angle of the nozzle can be adjusted.

[0010] Further, a chute is provided on the left side of the support table. A slider is slidably connected in the chute, and the left side of the slider is fixedly connected to a mounting plate to realize the up and down movement of the consumable electrode.

[0011] Further, a first motor is arranged at the bottom of the chute. A lead screw is arranged at the upper end of the output shaft of the first motor. The lead screw passes through the threaded hole in the middle of the slider and is threadedly connected to the slider. The upper end of the lead screw is rotatably connected to the top of the chute. The input end of the first motor is electrically connected to the output end of the single-chip microcomputer to provide the force for the slider to slide up and down.

[0012] Further, a water tank is fixedly connected to the left end of the bottom plate. A water-cooled crystallizer is fixedly installed on the upper end of the water tank through bolts to facilitate final demolding.

[0013] Further, a water outlet is arranged at the upper end of the outer surface of the water-cooled crystallizer, and a water inlet is arranged at the lower end of the outer surface of the water-cooled crystallizer. A water tank outlet is arranged on the front side of the outer surface of the water tank. The water tank outlet is connected to the water inlet through a pipeline to realize water circulation.

[0014] Further, a water pump is connected in series between the water tank outlet and the water inlet. The input end of the water pump is electrically connected to the output end of the single-chip microcomputer to provide power for water circulation.

[0015] Further, a consumable electrode is arranged at the lower left side of the mounting plate, and a transformer is arranged in the middle of the right side of the support table. The input end of the consumable electrode is electrically connected to the output end of the transformer, and the input end of the transformer is electrically connected to the output end of the single-chip microcomputer to heat the consumable electrode.

[0016] Further, a spiral air duct is arranged at the upper end of the inner wall of the water-cooled crystallizer to reduce the wind speed.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows: The melting device for electroslag ingots has the following advantages:

[0018] The second motor drives the worm to rotate, transmitting the semi-worm gear to drive the jet head to rotate around the pin shaft, thereby adjusting the jet angle of the jet head. Since the ejected gas is argon, an inert gas, the gas flows along the spiral air duct, the path becomes longer, and the resistance increases, thus reducing the flow rate. Therefore, a low-oxygen area is formed at the upper end of the water-cooled mold, thereby reducing the contact between the molten metal and the air and avoiding the oxidation phenomenon during the metal condensation process. By spraying inert gas into the spiral air duct through the jet mechanism, a low-oxygen area is formed at the upper end of the water-cooled mold, further reducing the contact between the molten metal and the air, preventing metal oxidation, and making the metal solidify better. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the present invention;

[0020] Figure 2 is a schematic structural diagram of the main view cross-section of the present invention.

[0021] 1 bottom plate, 2 support platform, 3 transformer, 4 single-chip microcomputer, 5 chute, 6 slider, 7 first motor, 8 lead screw, 9 mounting plate, 10 jet mechanism, 101 air blowing pump, 102 second motor, 103 worm, 104 rotating seat, 105 semi-worm gear, 106 jet head, 11 consumable electrode, 12 water-cooled mold, 13 water pump, 14 water tank, 15 water outlet, 16 water inlet, 17 water tank outlet, 18 spiral air duct. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0023] Please refer to Figure 1-2, this embodiment provides a technical solution: a melting device for an electroslag ingot, including a bottom plate 1. At the upper right end of the bottom plate 1, there is a support platform 2 fixedly connected. Inside the support platform 2, there is a mounting plate 9. At the left end of the bottom plate 1, there is a water tank 14 fixedly connected. At the upper end of the water tank 14, a water-cooled mold 12 is fixedly installed by bolts. At the upper outer surface of the water-cooled mold 12, there is a water outlet 15. At the lower outer surface of the water-cooled mold 12, there is a water inlet 16. At the front side of the outer surface of the water tank 14, there is a water tank outlet 17. The water tank outlet 17 is connected to the water inlet 16 through a pipeline. A water pump 13 is connected in series between the water tank outlet 17 and the water inlet 16. The input end of the water pump 13 is electrically connected to the output end of a single-chip microcomputer 4. At the lower right side of the support platform 2, there is a single-chip microcomputer 4. On the left side of the bottom plate 1, there is a water-cooled mold 12. At the upper inner wall of the water-cooled mold 12, there is a spiral air duct 18. On the left side of the support platform 2, there is a chute 5. Inside the chute 5, there is a sliding block 6 slidably connected. On the left side of the sliding block 6, there is a mounting plate 9 fixedly connected. At the lower left side of the mounting plate 9, there is a consumable electrode 11. In the middle of the right side of the support platform 2, there is a transformer 3. The input end of the consumable electrode 11 is electrically connected to the output end of the transformer 3. The input end of the transformer 3 is electrically connected to the output end of the single-chip microcomputer 4. At the bottom of the chute 5, there is a first motor 7. At the upper end of the output shaft of the first motor 7, there is a lead screw 8. The lead screw 8 passes through the threaded hole in the middle of the sliding block 6 and is threadedly connected to the sliding block 6. The upper end of the lead screw 8 is rotatably connected to the top of the chute 5. The input end of the first motor 7 is electrically connected to the output end of the single-chip microcomputer 4. It further includes a jet mechanism 10. When melting an electroslag ingot, the operator needs to first put the slag ingot to be melted into the water-cooled mold 12, then fill the water tank 14 with water and connect it to an external water source, then connect the water tank outlet 17 to the water inlet 16 of the water-cooled mold 12, and connect the water outlet 17 of the water-cooled mold 12 to the external water source, so that the external water source forms a loop with the water in the water tank 14 and the water-cooled mold 12. Then, through the single-chip microcomputer 4, turn on the first motor 7 to lower the consumable electrode 11 at the lower end of the mounting plate 9 into the water-cooled mold 12 to contact the electroslag ingot. Then, through the single-chip microcomputer 4, turn on the transformer 3 to supply power to the consumable electrode 11 by the transformer 3 so that the consumable electrode 11 generates heat to melt the electroslag ingot. At this time, through the single-chip microcomputer 4, turn on the water pump 13. The operation of the water pump 13 causes the water in the water tank 14 and the water-cooled mold 12 to circulate with the external water source, thereby realizing heat exchange and cooling the melted metal liquid to make it solidify;

[0024] Jetting mechanism 10: It includes a blowing pump 101, a worm 103, a rotating seat 104, a semi-worm gear 105 and a jetting head 106. The blowing pump 101 is arranged on the upper right side of the mounting plate 9. The lower end of the mounting plate 9 is rotatably connected with the worm 103. The lower end of the mounting plate 9 is fixedly connected with the rotating seat 104. The semi-worm gear 105 is rotatably connected in the rotating seat 104 through a pin shaft. The jetting head 106 is arranged at the lower end of the semi-worm gear 105. The semi-worm gear 105 is meshed with the worm 103. The jetting mechanism 10 further includes a second motor 102. The second motor 102 is arranged on the upper right side of the mounting plate 9. The output shaft of the second motor 102 passes through the round hole at the upper end of the mounting plate 9 and is fixedly connected with the worm 103. The input end of the second motor 102 is electrically connected to the output end of the single-chip microcomputer 4. When the blowing pump 101 and the second motor 102 are turned on, the second motor 102 rotates to drive the worm 103 to rotate, driving the semi-worm gear 105 to drive the jetting head 106 to rotate around the pin shaft, so as to adjust the jetting angle of the jetting head 106. The jetting head 106 is adjusted to jet towards the spiral air duct 18. Since the ejected gas is argon, which is an inert gas, the gas flows along the spiral air duct 18, the path becomes longer, and the resistance increases, thus reducing the flow rate. Therefore, a low-oxygen area is formed at the upper end of the water-cooled mold 12, reducing the contact between the molten metal and the air and avoiding the oxidation phenomenon during the metal solidification process. By jetting inert gas into the spiral air duct through the jetting mechanism, a low-oxygen area is formed at the upper end of the water-cooled mold, further reducing the contact between the molten metal and the air, preventing metal oxidation, and making the metal solidify better;

[0025] Among them: The input end of the single-chip microcomputer 4 is electrically connected to an external power supply, and the input end of the blowing pump 101 is electrically connected to the output end of the single-chip microcomputer 4.

[0026] The working principle of a melting device for electroslag ingots provided by the present utility model is as follows: When electroslag ingot melting is required, the staff for electroslag ingot melting needs to first place the slag ingot to be melted into the water-cooled mold 12, then fill the water tank 14 with water and connect it to an external water source, and then connect the water outlet 17 of the water tank to the water inlet 16 of the water-cooled mold 12, and connect the water outlet 17 of the water-cooled mold 12 to the external water source, so that the external water source forms a loop with the water in the water tank 14 and the water-cooled mold 12. Then, the first motor 7 is turned on through the single-chip microcomputer 4 to lower the consumable electrode 11 at the lower end of the mounting plate 9 into the water-cooled mold 12 to contact the electroslag ingot. Then, the transformer 3 is turned on through the single-chip microcomputer 4 to supply power to the consumable electrode 11 by the transformer 3, so that the consumable electrode 11 generates heat to melt the electroslag ingot. At this time, the water pump 13 is turned on through the single-chip microcomputer 4, and the operation of the water pump 13 causes the water in the water tank 14 and the water-cooled mold 12 to circulate with the external water source, thereby realizing heat exchange and cooling the melted metal liquid to make it solidify. When the electroslag ingot is about to be completely melted into metal liquid, the air blowing pump 101 and the second motor 102 are turned on through the single-chip microcomputer 4. The second motor 102 rotates to drive the worm 103 to rotate, and the transmission half worm wheel 105 drives the air jet head 106 to rotate around the pin shaft, thereby adjusting the jet angle of the air jet head 106. The air jet head 106 is adjusted to jet air towards the spiral air duct 18. Since the ejected gas is argon, an inert gas, the gas flows along the spiral air duct 18, the path becomes longer, and the resistance increases, thereby reducing the flow rate. Therefore, a low-oxygen area is formed at the upper end of the water-cooled mold 12, thereby reducing the contact between the metal liquid and the air and avoiding the oxidation phenomenon during the solidification of the metal. After the metal liquid is solidified, the fastening screws at the lower end of the water-cooled mold 12 can be removed to separate it from the water tank 14, and then it can be lifted to the demolding area by a crane for demolding.

[0027] It should be noted that, in the above embodiments, the single-chip microcomputer 4 disclosed is preferably the STC series, the second motor 102 is preferably 110BYGH1.8, the air blowing pump 101 is preferably XGB-7, the first motor 7 is preferably CDDR7, the water pump 13 is preferably Movitec vertical multi-stage centrifugal pump, and the single-chip microcomputer 4 controls the second motor 10, the air blowing pump 101, the first motor 7 and the water pump 13 to work by using the commonly used methods in the prior art.

[0028] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. All equivalent structural or equivalent process transformations made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied to other related technical fields, are equally included in the patent protection scope of the present utility model.

Claims

1. A smelting device for electroslag ingots, comprising a bottom plate (1), a support platform (2) is fixedly connected to the upper right end of the bottom plate (1), a mounting plate (9) is provided inside the support platform (2), a single chip computer (4) is provided at the lower right end of the support platform (2), and a water-cooled crystallizer (12) is provided on the left side of the bottom plate (1), characterized in that: Also includes an air jet mechanism (10); The jet mechanism (10) comprises an air pump (101), a worm (103), a rotating seat (104), a half worm gear (105) and an air jet head (106). The air pump (101) is arranged on the right side of the upper end of the mounting plate (9). The lower end of the mounting plate (9) is rotatably connected to the worm (103). The lower end of the mounting plate (9) is fixedly connected to the rotating seat (104). The rotating seat (104) is rotatably connected to the half worm gear (105) via a pin shaft. The lower end of the half worm gear (105) is provided with an air jet head (106). The half worm gear (105) is meshingly connected to the worm (103). Wherein: the input end of the single chip microcomputer (4) is electrically connected to an external power supply, and the input end of the air blowing pump (101) is electrically connected to the output end of the single chip microcomputer (4).

2. A smelting device for electroslag ingots according to claim 1, characterized in that: The jet mechanism (10) further comprises a second motor (102), which is arranged on the right side of the upper end of the mounting plate (9), the output shaft of the second motor (102) passes through the circular hole at the upper end of the mounting plate (9) and is fixedly connected to the worm (103), and the input end of the second motor (102) is electrically connected to the output end of the single-chip computer (4).

3. The smelting device for electroslag ingot according to claim 1, characterized in that: A slide groove (5) is provided on the left side of the support platform (2), a sliding block (6) is slidably connected in the slide groove (5), and a mounting plate (9) is fixedly connected to the left side of the sliding block (6).

4. A smelting device for electroslag ingots according to claim 3, characterized in that: A first motor (7) is arranged at the bottom of the slide groove (5), a screw rod (8) is arranged at the upper end of the output shaft of the first motor (7), the screw rod (8) passes through the threaded hole in the middle of the slider (6) and is threadedly connected to the slider (6), the upper end of the screw rod (8) is rotatably connected to the top of the slide groove (5), and the input end of the first motor (7) is electrically connected to the output end of the single chip computer (4).

5. The smelting device for electroslag ingot according to claim 1, characterized in that: The left end of the bottom plate (1) is fixedly connected to a water tank (14), and the upper end of the water tank (14) is fixedly mounted with a water-cooled crystallizer (12) via bolts.

6. A smelting device for electroslag ingots according to claim 5, characterized in that: The upper end of the outer surface of the water-cooled crystallizer (12) is provided with a water outlet (15), the lower end of the outer surface of the water-cooled crystallizer (12) is provided with a water inlet (16), and the outer surface of the water tank (14) is provided with a water tank outlet (17), and the water tank outlet (17) is connected to the water inlet (16) through a pipeline.

7. A smelting device for electroslag ingots according to claim 6, characterized in that: A water pump (13) is connected in series between the water outlet (17) and the water inlet (16) of the water tank, and the input end of the water pump (13) is electrically connected to the output end of the single chip computer (4).

8. The smelting device for electroslag ingot according to claim 6, characterized in that: A consumable electrode (11) is arranged at the lower left end of the mounting plate (9), a transformer (3) is arranged at the middle right end of the support platform (2), the input end of the consumable electrode (11) is electrically connected to the output end of the transformer (3), and the input end of the transformer (3) is electrically connected to the output end of the single chip computer (4).

9. The smelting device for electroslag ingot according to claim 5, characterized in that: A spiral air duct (18) is provided at the upper end of the inner wall of the water-cooled crystallizer (12).

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