Smelting device for titanium rod preparation

Abstract

The invention relates to the technical field of titanium rod preparation, in particular to a smelting device for titanium rod preparation, which comprises a furnace body, a filter assembly is arranged in the furnace body, a lifting assembly is arranged on the inner wall of the furnace body, a material taking assembly is arranged at the bottom of the furnace body, the filter assembly comprises four supporting blocks, and heating cylinders are clamped on the upper surfaces of the supporting blocks. A plurality of discharging holes are formed in the outer wall of the lower end of the heating cylinder, molten titanium materials are guided by the guide ring to directionally flow into the collecting ring groove of the disc, unmolten solid impurities cannot pass through the discharging holes due to large particles and naturally stay in the heating cylinder, and separation of the molten materials and the impurities is achieved. A secondary screening structure is formed by the collecting ring groove in the upper surface of the disc and the center collecting hole, it is ensured that only pure molten titanium materials can be conveyed downwards to a material barrel through the collecting hole, the mechanical property and purity of titanium rods prepared subsequently are remarkably improved, cross contamination of follow-up smelting batches caused by impurity residues is avoided, and the quality stability of long-term production is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of titanium rod preparation technology, specifically a melting apparatus for preparing titanium rods. Background Technology

[0002] The smelting process in titanium rod preparation is the core factor determining its purity and mechanical properties. Currently, the most mainstream method in industry is vacuum arc melting. Arc melting uses a tungsten electrode as one end of the arc, and the titanium raw material is placed in a crucible as the other end. After energizing, a high-voltage arc is generated between the tungsten electrode and the titanium raw material. The energy released by the arc can make the local temperature reach 2000-3000℃, which is sufficient to quickly melt titanium and alloying elements and form a uniform molten metal pool.

[0003] For example, a melting apparatus for processing titanium alloy bars, disclosed in CN214937736U, can preheat the material through a heating mechanism before heating and melting, shortening the melting time and achieving a more thorough melting effect. However, some impurities that cannot be melted will remain in the material during the heating process. These impurities will be discharged along with the molten material through the conveying pipes in the melting furnace. This results in impurities in the final cooled titanium ingot, which affects the quality of the prepared titanium bars. Furthermore, the impurities in the molten material remain in the melting furnace, affecting the subsequent raw material melting and reducing the quality of subsequent raw material melting work. Summary of the Invention

[0004] To address the problems in the prior art, the present invention provides a melting apparatus for preparing titanium rods.

[0005] The technical solution adopted by the present invention to solve its technical problem is: including a furnace body, wherein a filter assembly is provided inside the furnace body, a lifting assembly is provided on the inner wall of the furnace body, and a material picking assembly is provided at the bottom of the furnace body; The filter assembly includes four support blocks. A heating cylinder is snapped onto the upper surface of each support block. Multiple discharge holes are provided on the lower outer wall of the heating cylinder. A guide ring is fixedly sleeved on the lower outer wall of the heating cylinder. Two fixing blocks are fixedly connected to the inner wall of the furnace body. A sleeve is fixedly connected to the other end of each fixing block. A disc is snapped into the inside of the sleeve. A collection ring groove is provided on the outer side of the upper surface of the disc. A collection hole is provided at the center of the upper surface of the disc.

[0006] Specifically, the lower outer wall of the heating cylinder is tapered, and the guide ring is fixedly sleeved on the lowermost outer wall of the heating cylinder, with the outer wall of the guide ring corresponding to the collecting ring groove.

[0007] Specifically, the upper surface of the disk is located below the upper surface of the sleeve, and the outer wall of the disk matches the inner wall of the sleeve.

[0008] Specifically, the lifting assembly includes two rotating grooves and a clamping groove formed at the lower end of the outer wall of the sleeve. The rotating grooves are formed on the outer wall of the furnace body. A fixed shaft is fixedly connected to the inner wall of the rotating grooves. A rotating rod is rotatably connected to the surface of the fixed shaft. A rubber sleeve is engaged at one end of the rotating rod. The rubber sleeve is fixedly connected to the outer wall of the furnace body. The other end of the rotating rod is engaged inside the clamping groove.

[0009] Specifically, one end of the rotating rod is engaged inside the clamping groove at the lower end of the disc, and the rotating rod is in contact with the lower surface of the disc.

[0010] Specifically, the material handling assembly includes a collar that is movably fitted onto the outer wall of the furnace body. Two openings are symmetrically formed on the outer wall of the furnace body. Two sliding grooves are symmetrically formed on the inner wall of the collar. A retaining strip is slidably connected inside the sliding groove. The retaining strip is fixedly connected to the outer wall of the furnace body. A material bucket is placed at the bottom of the furnace body.

[0011] Specifically, a top cover is snapped onto the upper end of the furnace body, and a heat insulation sleeve is fixedly fitted onto the surface of the top cover. A heating electrode is snapped onto the inside of the heat insulation sleeve.

[0012] The beneficial effects of this invention are: (1) The smelting device for preparing titanium rods described in this invention guides the molten titanium material into the collection ring groove of the disc through the guide ring. The unmelted solid impurities cannot pass through the discharge hole due to their large particle size and naturally remain in the heating cylinder, thus achieving the separation of molten material and impurities. The collection ring groove on the upper surface of the disc and the central collection hole form a secondary screening structure, ensuring that only pure molten titanium material can be transported down to the material bucket through the collection hole, reducing the impurity content in the titanium ingot from the source, significantly improving the mechanical properties and purity of the titanium rods prepared in the subsequent process, avoiding cross-contamination of subsequent smelting batches by impurity residues, and ensuring long-term production quality stability. (2) The smelting device for preparing titanium rods described in this invention can lift the disc by rotating one end of the rotating rod wrapped with a rubber sleeve, so that the bottom end of the collecting ring groove is raised to the top of the sleeve, and the impurities in the collecting ring groove slide down to the bottom of the furnace body. This can quickly clean the impurities in the disc and prevent them from affecting subsequent smelting work. Attached Figure Description

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

[0014] Figure 1 This is a schematic diagram of the structure of a melting apparatus for preparing titanium rods provided by the present invention; Figure 2 A schematic cross-sectional view of a melting apparatus for preparing titanium rods provided by the present invention. Figure 1 ; Figure 3 A schematic cross-sectional view of a melting apparatus for preparing titanium rods provided by the present invention. Figure 2 ; Figure 4 This is a schematic diagram of the furnace structure of a melting apparatus for preparing titanium rods provided by the present invention; Figure 5 This is a schematic diagram of the heating cylinder structure of a melting apparatus for preparing titanium rods provided by the present invention; Figure 6 This is a schematic diagram of the sleeve structure of a melting apparatus for preparing titanium rods provided by the present invention; Figure 7 This is a schematic diagram of a disc structure for a melting apparatus for preparing titanium rods provided by the present invention.

[0015] In the diagram: 1. Furnace body; 2. Filter assembly; 21. Support block; 22. Heating cylinder; 23. Discharge hole; 24. Guide ring; 25. Fixing block; 26. Sleeve; 27. Disc; 28. Collection ring groove; 29. ​​Collection hole; 3. Lifting assembly; 31. Rotary groove; 32. Fixing shaft; 33. Rotating rod; 34. Rubber sleeve; 35. Clamping groove; 4. Material handling assembly; 41. Collar; 42. Opening; 43. Slide groove; 44. Clamping strip; 45. Material bucket; 46. Top cover; 47. Heat insulation sleeve; 48. Heating electrode. 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] Please see Figures 1 to 7 The present invention provides the following technical solutions: Example 1: A melting device for preparing titanium rods includes a furnace body 1, a filter assembly 2 is provided inside the furnace body 1, a lifting assembly 3 is provided on the inner wall of the furnace body 1, and a material handling assembly 4 is provided at the bottom of the furnace body 1. The filter assembly 2 includes four support blocks 21. A heating cylinder 22 is snapped onto the upper surface of the support block 21. Multiple discharge holes 23 are opened on the lower outer wall of the heating cylinder 22. A guide ring 24 is fixedly sleeved on the lower outer wall of the heating cylinder 22. Two fixing blocks 25 are fixedly connected to the inner wall of the furnace body 1. A sleeve 26 is fixedly connected to the other end of the fixing block 25. A disc 27 is snapped into the inside of the sleeve 26. A collection ring groove 28 is opened on the outer side of the upper surface of the disc 27. A collection hole 29 is opened at the center of the upper surface of the disc 27.

[0018] The lower outer wall of the heating cylinder 22 is tapered, and the guide ring 24 is fixedly sleeved on the lowermost outer wall of the heating cylinder 22. The outer wall of the guide ring 24 corresponds to the collecting ring groove 28.

[0019] The upper surface of the disc 27 is located below the upper surface of the sleeve 26, and the outer wall of the disc 27 matches the inner wall of the sleeve 26.

[0020] In use, first, evenly fix the four support blocks 21 inside the lower end of the furnace body 1, ensuring that the upper surfaces of the support blocks are at the same horizontal level; then, snap the heating cylinder 22 onto the upper surface of the support blocks 21. The lower end of the heating cylinder 22 has a conical structure, and its axis must be aligned with the axis of the furnace body 1; next, fix the guide ring 24 onto the outer wall of the lowest end of the heating cylinder 22, ensuring that the outer wall of the guide ring 24 is smooth and burr-free; then, fix the sleeve 26 horizontally to the inner wall of the furnace body 1 using two fixing blocks 25. The two ends of the fixing blocks 25 are welded and fixed to the inner wall of the furnace body 1 and the outer wall of the sleeve 26, respectively. Finally, snap the disc 27 into the inside of the sleeve 26, so that the upper surface of the disc 27 is located below the upper surface of the sleeve 26, and the outer wall of the disc 27 is in close contact with the inner wall of the sleeve 26. At this time, the outer wall of the guide ring 24 corresponds to the position of the collection ring groove 28 of the disc 27, and the titanium raw material is fed in. Inside the heating cylinder 22, the top cover 46 is placed on top, aligning the heating electrode 48 with the raw material inside the heating cylinder 22. After the power is turned on, the heating electrode 48 releases a high-voltage arc, generating a high temperature of 2000-3000℃. The titanium raw material gradually melts inside the heating cylinder 22 to form molten material. As the molten material level rises, the molten material flows out through the discharge hole 23 at the lower end of the heating cylinder 22. Under the guidance of the guide ring 24, it flows precisely into the collection ring groove 28 of the disc 27. Unmelted solid impurities cannot pass through the discharge hole 23 and remain inside the heating cylinder 22. After the molten material in the collection ring groove 28 further accumulates, the impurities are blocked by the upper surface of the disc 27, while the liquefied molten material flows over the upper surface of the disc 27 into the collection hole 29 in the center of the disc 27, and finally enters the material bucket 45 at the bottom of the furnace body 1, thus achieving the separation of impurities and pure molten material.

[0021] Example 2: The technical solution of this example that differs from that of Example 1 includes: the lifting component 3 includes two rotating grooves 31 and a clamping groove 35 opened at the lower end of the outer wall of the sleeve 26. The rotating grooves 31 are opened on the outer wall of the furnace body 1. A fixed shaft 32 is fixedly connected to the inner wall of the rotating grooves 31. A rotating rod 33 is rotatably connected to the surface of the fixed shaft 32. One end of the rotating rod 33 is clamped with a rubber sleeve 34. The rubber sleeve 34 is fixedly connected to the outer wall of the furnace body 1. The other end of the rotating rod 33 is clamped inside the clamping groove 35.

[0022] One end of the rotating rod 33 is engaged inside the clamping groove 35 and is located at the lower end of the disc 27. The rotating rod 33 is in contact with the lower surface of the disc 27.

[0023] In use, two symmetrical rotating grooves 31 are made on the outer wall of the furnace body 1, with the position of the rotating grooves 31 corresponding to the lower end of the sleeve 26; a fixed shaft 32 is welded to the inner wall of each rotating groove 31 to ensure that the axis of the fixed shaft 32 is horizontal; one end of the rotating rod 33 is rotatably connected to the surface of the fixed shaft 32 through a bearing, and the other end is machined into a shape that matches the clamping groove 35; a rubber sleeve 34 is fixed on the outer wall of the furnace body 1 at the position corresponding to one end of the rotating rod 33. The rubber sleeve 34 is made of high-temperature resistant silicone rubber, and one end of the rotating rod 33 is clamped in the rubber sleeve to play a role in anti-slip and heat insulation. Finally, a clamping groove 35 is made at the lower end of the outer wall of the sleeve 26, and the other end of the rotating rod 33 is clamped in the clamping groove 35, with the upper surface of the rotating rod 33 tightly fitting the lower surface of the disc 27, thus completing the installation of the lifting assembly 3. When the smelting operation is finished or the disc 27 needs to be cleaned, the operator holds one end of the rotating rod 33 located inside the rubber sleeve 34 and rotates the rotating rod 33 outward. The rotating rod 33 rotates around the fixed shaft 32, and the other end of the rotating rod, which is locked in the clamping groove 35, is lifted upward, pushing the disc 27 to slide upward along the inner wall of the sleeve 26 until the bottom of the upper surface of the collecting ring groove 28 is exposed outside the sleeve 26. At this time, any small amount of impurities that may remain in the collecting ring groove 28 slide out from outside the sleeve 26 and fall to the bottom of the furnace body 1, quickly cleaning the disc 27. After maintenance is completed, the rotating rod 33 is rotated in the opposite direction, so that the disc 27 slowly falls back to its original position inside the sleeve 26, and the rotating rod 33 returns to its initial locked state. The operation is convenient and does not require disassembly of the equipment, greatly shortening the maintenance time.

[0024] Example 3: The technical solution of this example that differs from that of Example 2 includes: the material handling component 4 includes a collar 41, which is movably sleeved on the outer wall of the furnace body 1. Two openings 42 are symmetrically opened on the outer wall of the furnace body 1. Two sliding grooves 43 are symmetrically opened on the inner wall of the collar 41. A retaining strip 44 is slidably connected inside the sliding groove 43. The retaining strip 44 is fixedly connected to the outer wall of the furnace body 1. A material bucket 45 is placed at the bottom of the furnace body 1.

[0025] A top cover 46 is snapped onto the upper end of the furnace body 1. A heat insulation sleeve 47 is fixedly fitted onto the surface of the top cover 46. A heating electrode 48 is snapped onto the inside of the heat insulation sleeve 47.

[0026] During use, after assembly, check the connection status of each component to ensure that the collar 41 is in the closed opening 42 position. Turn on the power to the heating electrode 48 and preheat (temperature rises to 800-1000℃) for 10-15 minutes to remove air and moisture from inside the furnace body 1. Then raise the temperature to 2500-3000℃ to melt the titanium raw material in the heating cylinder 22 until the raw material is completely melted. During the melting process, the collar 41 can be slid upward to observe the flow of the molten material in the collecting ring groove 28 through the opening 42 to ensure there is no blockage. When the molten material in the material bucket 45 reaches the preset capacity, turn off the heating electrode 48. After the molten material cools naturally to room temperature in the material bucket 45 to form a titanium ingot, slide the collar 41 downward to open the opening 42 and remove the material bucket 45 from the bottom of the furnace body 1 to complete one melting and material removal operation.

[0027] 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 smelting device for preparing titanium rods, comprising a furnace body (1), the inside of the furnace body (1) is provided with a filtering assembly (2), the inner wall of the furnace body (1) is provided with a lifting assembly (3), and the bottom of the furnace body (1) is provided with a material taking assembly (4). characterized in that The filtering assembly (2) comprises four supporting blocks (21), the upper surface of the supporting block (21) is clamped with a heating cylinder (22), a plurality of discharge holes (23) are formed in the lower end outer wall of the heating cylinder (22), a guide ring (24) is fixedly sleeved on the lower end outer wall of the heating cylinder (22), two fixed blocks (25) are fixedly connected on the inner wall of the furnace body (1), one end of the fixed block (25) is fixedly connected with a sleeve (26), a disc (27) is clamped in the sleeve (26), a collecting ring groove (28) is formed in the outer side of the upper surface of the disc (27), and a collecting hole (29) is formed in the center of the upper surface of the disc (27).

2. The titanium rod manufacturing smelting device according to claim 1, characterized by: The lower end outer wall of the heating cylinder (22) is conical, the guide ring (24) is fixedly sleeved on the lowermost end outer wall of the heating cylinder (22), and the outer wall of the guide ring (24) corresponds to the collecting ring groove (28).

3. The titanium rod manufacturing melting apparatus according to claim 1, characterized by: The upper surface of the disc (27) is located below the upper end of the sleeve (26), and the outer wall of the disc (27) matches the inner wall of the sleeve (26).

4. The titanium rod manufacturing melting apparatus according to claim 1, wherein: The lifting assembly (3) comprises two rotating grooves (31) and a clamping groove (35) formed in the lower end of the outer wall of the sleeve (26), the rotating groove (31) is formed in the outer wall of the furnace body (1), a fixed shaft (32) is fixedly connected to the inner wall of the rotating groove (31), a rotating rod (33) is rotatably connected to the surface of the fixed shaft (32), a rubber sleeve (34) is clamped on one end of the rotating rod (33), the rubber sleeve (34) is fixedly connected to the outer wall of the furnace body (1), and the other end of the rotating rod (33) is clamped in the clamping groove (35).

5. The titanium rod manufacturing melting apparatus according to claim 4, wherein: The end of the rotating rod (33) clamped in the clamping groove (35) is located below the disc (27), and the rotating rod (33) is attached to the lower surface of the disc (27).

6. The titanium rod manufacturing melting apparatus according to claim 1, wherein: The material taking assembly (4) comprises a sleeve ring (41), the sleeve ring (41) is movably sleeved on the outer wall of the furnace body (1), two openings (42) are symmetrically formed in the outer wall of the furnace body (1), two sliding grooves (43) are symmetrically formed in the inner wall of the sleeve ring (41), a clamping strip (44) is slidably connected in the sliding groove (43), the clamping strip (44) is fixedly connected to the outer wall of the furnace body (1), and a material barrel (45) is placed on the bottom of the furnace body (1).

7. The titanium rod manufacturing smelting apparatus according to claim 6, wherein: The upper end of the furnace body (1) is clamped with a top cover (46), the surface of the top cover (46) is fixedly sleeved with a heat insulation sleeve (47), and the inside of the heat insulation sleeve (47) is clamped with a heating electrode (48).

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