Raw material feeding device for titanium ingot smelting

Abstract

The invention relates to the technical field of titanium ingot smelting, in particular to a titanium ingot smelting raw material feeding device which comprises a vacuum consumable electric arc furnace, a feeding pipe is fixedly installed at the upper end of the vacuum consumable electric arc furnace, a lifting assembly is fixedly installed on the vacuum consumable electric arc furnace, and an air extractor is fixedly installed on the lifting assembly. The consumable electrode is clamped and fixed through the clamping ring, meanwhile, the consumable electrode is adsorbed and fixed through the adsorption head, when the clamping ring is loosened, the consumable electrode can be supported through the adsorption head, when the adsorption head is loosened, the consumable electrode can be clamped and fixed through the clamping ring, and when the adsorption head and the clamping ring are loosened, the consumable electrode can be clamped and fixed through the adsorption head. The adsorption head can pump out air in the feeding pipe between the sealing ring and the clamping ring, certain negative pressure is formed in the feeding pipe, the consumable electrode is pulled, the consumable electrode is prevented from automatically sliding off, the time for processing equipment is bought, and the situation that potential safety hazards are caused and follow-up production is affected is avoided.

Description

Technical Field

[0001] This invention relates to the field of titanium ingot smelting technology, specifically to a raw material feeding device for titanium ingot smelting. Background Technology

[0002] Titanium ingot smelting is a core step in the production of titanium and titanium alloys. Its purpose is to transform sponge titanium, titanium alloy raw materials, or recycled materials into titanium ingots with uniform composition, qualified purity, and dense structure, providing qualified billets for subsequent processing (such as forging and rolling). In industry, vacuum consumable arc furnaces are the mainstream equipment for titanium ingot smelting. In the pretreatment stage, titanium is combined with other materials to prepare consumable electrodes. Vacuum consumable arc furnaces use consumable electrodes as raw materials. During the smelting process, the high temperature generated by the arc causes the lower end of the consumable electrode to melt continuously. As the lower end melts, consumable electrodes are continuously fed into the vacuum consumable arc furnace for processing.

[0003] Existing feeding equipment for vacuum consumable arc furnaces typically uses clamping devices to hold the top of the electrode. However, this single clamping method can cause the consumable electrode to detach downwards if the clamp slips, affecting the safe operation of the equipment and subsequent processing. Therefore, it is necessary to propose a raw material feeding device for titanium ingot smelting. Summary of the Invention

[0004] To address the problems in the prior art, the present invention provides a raw material feeding device for titanium ingot smelting.

[0005] The technical solution adopted by this invention to solve its technical problem is: a raw material feeding device for titanium ingot smelting, including a vacuum self-consuming electric arc furnace, a feeding pipe fixedly installed at the upper end of the vacuum self-consuming electric arc furnace, a lifting assembly fixedly installed on the vacuum self-consuming electric arc furnace, a vacuum pump fixedly installed on the lifting assembly, a fixed pipe fixedly connected to the lower end of the vacuum pump, the lower end of the fixed pipe extending into the feeding pipe and fixedly connected to an adsorption head, a sealing ring sleeved on the fixed pipe, two elastic rods fixedly installed at the lower end of the fixed pipe, a semi-circular clamping ring fixedly connected to the end of each elastic rod away from the fixed pipe, a receiving groove opened on the outer wall of the two clamping rings on the side away from each other, a fixing hole through the receiving groove, a threaded rod slidably connected in the fixing hole, one end of the threaded rod extending into the receiving groove on one side and fixedly connected to a bolt head, the other end of the threaded rod extending into the receiving groove on the other side and threadedly connected to a nut.

[0006] Specifically, the lifting assembly includes a mounting plate, which is fixedly connected to the outer side wall of the top of the vacuum self-consuming electric arc furnace. A driving cylinder is fixedly installed on the upper surface of the mounting plate, and a piston rod is movably connected to the output end of the driving cylinder. A support plate is fixedly installed at the top of the piston rod, and the vacuum pump and the fixed pipe are both fixedly installed on the support plate.

[0007] Specifically, an exhaust pipe is fixedly installed on the upper surface of the vacuum self-consuming electric arc furnace, and an inlet pipe is fixedly installed on the upper surface of the vacuum self-consuming electric arc furnace.

[0008] Specifically, the outer ring wall of the sealing ring is provided with threads, the inner wall of the upper end of the feed pipe is provided with threads, the sealing ring is threadedly connected to the feed pipe, and a rotating handle is fixedly connected to the upper surface of the sealing ring.

[0009] Specifically, the two semi-annular clamping rings together form a ring-shaped fixing ring, and a consumable electrode is clamped and fixed inside the fixing ring, with the top of the consumable electrode abutting against the adsorption head.

[0010] Specifically, the fixing ring is slidably connected to the consumable electrode inside the feed pipe, and the lower end of the consumable electrode extends into the vacuum consumable arc furnace.

[0011] Specifically, the lower end of the vacuum self-consuming electric arc furnace is cone-shaped, and a discharge port is provided at the lower end of the vacuum self-consuming electric arc furnace.

[0012] The beneficial effects of this invention are as follows: The raw material feeding device for titanium ingot smelting described in this invention uses a clamping ring to clamp and fix the consumable electrode. Simultaneously, a vacuum pump extracts air from the fixing ring and the adsorption head, creating a negative pressure inside to adsorb and fix the consumable electrode. If the clamping ring becomes loose, the adsorption head can support the consumable electrode; if the adsorption head becomes loose, the clamping ring can clamp and fix the consumable electrode. When both the adsorption head and the clamping ring become loose, the adsorption head extracts air between the sealing ring and the clamping ring, creating a certain negative pressure in the feed pipe and pulling on the consumable electrode to prevent it from slipping off. This buys time to process the equipment, thus avoiding safety hazards that could affect subsequent production. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] Figure 1 A front view of the external structure of a raw material feeding device for titanium ingot smelting provided by the present invention; Figure 2 A partial cross-sectional view of a raw material feeding device for titanium ingot smelting provided by the present invention; Figure 3 A partial sectional side view of a raw material feeding device for titanium ingot smelting provided by the present invention; Figure 4 Exploded view of the fixed tube, adsorption head, sealing ring, elastic rod and clamping ring of the raw material feeding device for titanium ingot smelting provided by the present invention; Figure 5 A schematic diagram of the external structure of a consumable electrode clamping state of a raw material feeding device for titanium ingot melting provided by the present invention. Figure 6 A front internal sectional view of the consumable electrode clamping state of a raw material feeding device for titanium ingot smelting provided by the present invention; Figure 7 This is a side internal sectional view of the consumable electrode clamping state of a raw material feeding device for titanium ingot smelting provided by the present invention.

[0015] In the diagram: 1. Vacuum self-consuming electric arc furnace; 2. Feed pipe; 3. Evacuator; 4. Fixed pipe; 5. Adsorption head; 6. Sealing ring; 7. Elastic rod; 8. Clamping ring; 9. Storage groove; 10. Fixing hole; 11. Threaded rod; 12. Bolt head; 13. Nut; 14. Mounting plate; 15. Drive cylinder; 16. Piston rod; 17. Support plate; 18. Evacuation pipe; 19. Inlet pipe; 20. Rotating handle; 21. Discharge port. Detailed Implementation

[0016] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0017] like Figures 1-7 As shown, the present invention provides the following technical solution: Example 1: A raw material feeding device for titanium ingot smelting includes a vacuum self-consuming electric arc furnace 1. A feed pipe 2 is fixedly installed at the upper end of the vacuum self-consuming electric arc furnace 1. A lifting assembly is fixedly installed on the vacuum self-consuming electric arc furnace 1. A vacuum pump 3 is fixedly installed on the lifting assembly. A fixed pipe 4 is fixedly connected to the lower end of the vacuum pump 3. The lower end of the fixed pipe 4 extends into the feed pipe 2 and is fixedly connected to an adsorption head 5. A sealing ring 6 is sleeved on the fixed pipe 4. Two elastic rods 7 are fixedly installed at the lower end of the fixed pipe 4. A semi-circular clamping ring 8 is fixedly connected to the end of the elastic rod 7 away from the fixed pipe 4. A receiving groove 9 is opened on the outer wall of the side away from the two clamping rings 8. A fixing hole 10 is opened through the receiving groove 9. A threaded rod 11 is slidably connected in the fixing hole 10. One end of the threaded rod 11 extends into the receiving groove 9 on one side and is fixedly connected to a bolt head 12. The other end of the threaded rod 11 extends into the receiving groove 9 on the other side and is threadedly connected to a nut 13. The lifting assembly includes a mounting plate 14, which is fixedly connected to the outer side wall of the top of the vacuum self-consuming electric arc furnace 1. A drive cylinder 15 is fixedly installed on the upper surface of the mounting plate 14. A piston rod 16 is movably connected to the output end of the drive cylinder 15. A support plate 17 is fixedly installed on the top of the piston rod 16. The vacuum pump 3 and the fixed pipe 4 are both fixedly installed on the support plate 17. When using it, the following steps are included: S1. First, insert the top of the consumable electrode between the two clamping rings 8 and abut the top of the consumable electrode against the adsorption head 5. Then push the two clamping rings 8 against each other. Then insert the threaded rod 11 into the fixing hole 10. Then rotate the threaded rod 11 through the bolt head 12 so that the threaded rod 11 is threadedly connected to the nut 13, thereby making the two clamping rings 8 form a fixing ring and clamp and fix the consumable electrode. S2. Start the vacuum pump 3. The vacuum pump 3 will extract the air from the fixed tube 4 and the adsorption head 5 and create a negative pressure in the fixed tube 4 and the adsorption head 5. The adsorption head 5 will adsorb the consumable electrode to fix it. S3. Start the drive cylinder 15. The drive cylinder 15 drives the piston rod 16 to descend. The piston rod 16 will drive the support plate 17. The support plate 17 will drive the fixed tube 4, the adsorption head 5, the clamping ring 8 and the consumable electrode to descend into the feed tube 2. After the adsorption head 5, the clamping ring 8 and the consumable electrode descend to the feed tube 2, the descent stops. Then the sealing ring 6 is threaded to the feed tube 2 and the upper end of the feed tube 2 is sealed. S4. Start the vacuum self-consuming electric arc furnace 1. The vacuum self-consuming electric arc furnace 1 melts the lower end of the self-consuming electrode that enters it. Then start the drive cylinder 15 to drive the self-consuming electrode to descend into the vacuum self-consuming electric arc furnace 1 at a constant speed for processing. The molten titanium ingot is discharged through the discharge port 21 for subsequent processing. S5. When the clamping ring 8 loosens its grip on the consumable electrode, the suction head 5 can be used to adsorb the consumable electrode to increase the support strength. S6. When the adsorption of the adsorption head 5 becomes loose, the self-consumable electrode can be prevented from sliding down by clamping the self-consumable electrode by the clamping ring 8. The adsorption head 5 will be adsorbed on the self-consumable electrode again to fix it again while the vacuum pump 3 continues to pump air. S7. When both the clamping ring 8 and the adsorption head 5 are loose, the consumable electrode will slowly slide downwards. At this time, even if the vacuum pump 3 continues to pump air, it will not be able to adsorb the adsorption head 5 onto the consumable electrode. This will draw out the air in the feed 2 between the clamping ring 8 and the sealing ring 6 and form a certain negative pressure inside, which will pull the consumable electrode to a certain extent, so that the consumable electrode will not fall off in a short time. This makes it convenient to stop and maintain the vacuum consumable arc furnace 1 during this time, thereby avoiding damage to the vacuum consumable arc furnace 1 and affecting its use.

[0018] Example 2: The technical solutions in this example that differ from Example 1 include: A vacuum self-consuming arc furnace 1 has a vacuum pipe 18 fixedly installed on its upper surface. This pipe creates a vacuum inside the crucible, facilitating the melting of titanium ingots. An inlet pipe 19 is also fixedly installed on the upper surface of the furnace, injecting oxygen and other necessary processing gases into the furnace. The outer ring wall of the sealing ring 6 is threaded, and the inner wall of the upper end of the feed pipe 2 is threaded. The sealing ring 6 is threaded onto the feed pipe 2. A rotating handle 20 is fixedly connected to the upper surface of the sealing ring 6. Rotating the handle 20 rotates the sealing ring 6, connecting it to the feed pipe 2. This ensures the connection between the sealing ring 6 and the feed pipe 2. The gap between the feed pipes 2 is sealed, and the two semi-annular clamping rings 8 together form a ring-shaped fixing ring. The self-consumable electrode is clamped and fixed inside the fixing ring. The self-consumable electrode is clamped and fixed by the fixing ring formed by the clamping rings 8, and the feed pipe 2 is sealed. The top of the self-consumable electrode abuts against the adsorption head 5. The top of the self-consumable electrode is fixed by the adsorption head 5. The fixing ring and the self-consumable electrode are slidably connected in the feed pipe 2 to facilitate the formation of a negative pressure vacuum to fix the self-consumable electrode. The lower end of the self-consumable electrode extends into the vacuum self-consumable arc furnace 1. The lower end of the vacuum self-consumable arc furnace 1 is tapered, and the lower end of the vacuum self-consumable arc furnace 1 is provided with a discharge port 21. The processed titanium ingot is discharged through the discharge port 12.

[0019] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A raw material feeding device for titanium ingot smelting, comprising a vacuum consumable electric arc furnace (1), characterized in that, A feed pipe (2) is fixedly installed at the upper end of the vacuum self-consuming electric arc furnace (1). A lifting assembly is fixedly installed on the vacuum self-consuming electric arc furnace (1). A vacuum pump (3) is fixedly installed on the lifting assembly. A fixed pipe (4) is fixedly connected to the lower end of the vacuum pump (3). The lower end of the fixed pipe (4) extends into the feed pipe (2) and is fixedly connected to an adsorption head (5). A sealing ring (6) is fitted on the fixed pipe (4). Two elastic rods (7) are fixedly installed at the lower end of the fixed pipe (4). The elastic rods (7) are away from the fixed pipe. (4) One end of each of the two clamping rings (8) is fixedly connected to a semi-circular clamping ring (8). The outer side wall of each clamping ring (8) on the opposite side is provided with a storage groove (9). A fixing hole (10) is provided through the storage groove (9). A threaded rod (11) is slidably connected in the fixing hole (10). One end of the threaded rod (11) extends into the storage groove (9) on one side and is fixedly connected with a bolt head (12). The other end of the threaded rod (11) extends into the storage groove (9) on the other side and is threadedly connected with a nut (13).

2. The raw material feeding device for titanium ingot smelting according to claim 1, characterized in that: The lifting assembly includes a mounting plate (14), which is fixedly connected to the outer side wall of the top of the vacuum self-consuming electric arc furnace (1). A driving cylinder (15) is fixedly installed on the upper surface of the mounting plate (14). A piston rod (16) is movably connected to the output end of the driving cylinder (15). A support plate (17) is fixedly installed at the top of the piston rod (16). The vacuum pump (3) and the fixed pipe (4) are both fixedly installed on the support plate (17).

3. The raw material feeding device for titanium ingot smelting according to claim 1, characterized in that: The upper surface of the vacuum self-consuming electric arc furnace (1) is fixedly equipped with a suction pipe (18) and an air inlet pipe (19).

4. The raw material feeding device for titanium ingot smelting according to claim 1, characterized in that: The outer ring wall of the sealing ring (6) is provided with threads, the inner wall of the upper end of the feed pipe (2) is provided with threads, and the sealing ring (6) is threadedly connected to the feed pipe (2). A rotating handle (20) is fixedly connected to the upper surface of the sealing ring (6).

5. The raw material feeding device for titanium ingot smelting according to claim 1, characterized in that: The two semi-annular clamping rings (8) together form a ring-shaped fixing ring, and a self-consuming electrode is clamped and fixed inside the fixing ring. The top of the self-consuming electrode abuts against the adsorption head (5).

6. The raw material feeding device for titanium ingot smelting according to claim 5, characterized in that: The fixed ring is slidably connected to the consumable electrode in the feed pipe (2), and the lower end of the consumable electrode extends into the vacuum consumable arc furnace (1).

7. The raw material feeding device for titanium ingot smelting according to claim 1, characterized in that: The lower end of the vacuum self-consuming electric arc furnace (1) is cone-shaped, and the lower end of the vacuum self-consuming electric arc furnace (1) is provided with a discharge port (21).

Images