Top-blown smelting equipment for refining high-strength corrosion-resistant stainless steel

Abstract

The invention discloses top-blowing smelting equipment for refining high-strength corrosion-resistant stainless steel, and relates to the technical field of smelting equipment.The top-blowing smelting equipment comprises a base, a driven wheel is rotationally connected to the top face of the base, a smelting tank is fixedly connected to the top face of the driven wheel, a sealing cover is fixedly installed on the top face of the smelting tank, a support is fixedly connected to the top of the smelting tank, and a transmission box is fixedly connected to the support; a transmission assembly is installed in the transmission box, the bottom of the transmission assembly is rotationally connected with a stirring assembly, the stirring assembly penetrates through the sealing cover and extends into the smelting tank, the top face of the driven wheel is rotationally connected with a connecting assembly, the connecting assembly is fixedly connected with the transmission assembly, a gear ring is arranged on the outer side of the smelting tank, and the connecting assembly is meshed with the inner wall of the gear ring. Under the combined action of rotation of the smelting tank and the stirring assembly, a solution can be stirred in the horizontal direction and can also be turned over in the vertical direction, then the solution makes full contact with oxygen, the oxygen and the solution are mixed more evenly, and the working efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of smelting equipment, and in particular to a top-blown smelting equipment used for refining high-strength corrosion-resistant stainless steel. Background Art

[0002] Converter steelmaking uses molten iron, scrap steel and ferroalloy as the main raw materials. It does not rely on external energy sources, but relies on the physical heat of the molten iron itself and the heat generated by the chemical reaction between the components of the molten iron to complete the steelmaking process in the converter. It is mainly used for the production of carbon steel, alloy steel, copper and nickel smelting. The top blowing method is to insert an oxygen spray gun into the furnace from the top of the furnace and blow in oxygen (high-pressure oxygen flow with a purity greater than 99%) so that it directly reacts with the high-temperature molten iron to oxidize and remove impurities. Using pure oxygen instead of air can overcome the disadvantages of steel becoming brittle due to the influence of nitrogen in the air and the heat taken away when nitrogen is discharged. After removing most of the sulfur and phosphorus, when the composition and temperature of the molten steel meet the requirements, the blowing is stopped, the spray gun is lifted, and steel is ready to be tapped. When tapping, the furnace body is tilted, and the molten steel is injected into the ladle from the tapping port. At the same time, a deoxidizer is added for deoxidation and composition adjustment.

[0003] In the existing equipment, oxygen can only contact a large area of ​​the surface of the internal solution during top-blowing smelting, which results in uneven contact between the solution and oxygen, and thus fails to fully react, reducing work efficiency.

[0004] Therefore, there is an urgent need for a top-blown smelting equipment for refining high-strength and corrosion-resistant stainless steel to solve the problems existing in the above-mentioned prior art. Summary of the invention

[0005] The purpose of the present invention is to provide a top-blown smelting equipment for refining high-strength corrosion-resistant stainless steel to solve the problems existing in the prior art.

[0006] To achieve the above-mentioned purpose, the present invention provides the following scheme: The present invention provides a top-blown smelting equipment for refining high-strength and corrosion-resistant stainless steel, comprising a base, a driven wheel is rotatably connected to the top surface of the base, a smelting tank is fixedly connected to the top surface of the driven wheel, a sealing cover is fixedly installed on the top surface of the smelting tank, a bracket is fixedly connected to the top of the smelting tank, a transmission box is fixedly connected to the bracket, a transmission assembly is installed in the transmission box, a stirring assembly is rotatably connected to the bottom of the transmission assembly, the stirring assembly passes through the sealing cover and extends into the smelting tank, a connecting assembly is rotatably connected to the top surface of the driven wheel, the connecting assembly is fixedly connected to the transmission assembly, a gear ring is provided on the outside of the smelting tank, and the connecting assembly meshes with the inner wall of the gear ring.

[0007] Preferably, the connecting assembly includes a transmission rod rotatably connected to the top surface of the driven wheel, the top surface of the transmission rod is rotatably connected to a fixed plate, the fixed plate is fixedly connected to the outer wall of the transmission box, the top of the transmission rod is fixedly connected to a second bevel gear, the second bevel gear is meshed with a first bevel gear, the center of the first bevel gear is fixedly connected to a connecting rod, one end of the connecting rod close to the first bevel gear is rotatably connected to a support, the support is fixed to the bracket, the other end of the connecting rod extends into the transmission box and is fixedly connected to the transmission assembly, a transmission wheel is fixedly connected to the transmission rod, and the transmission wheel meshes with the inner wall of the gear ring.

[0008] Preferably, the transmission assembly includes a disc fixed to the end of the connecting rod, an eccentric block is fixed to the side of the disc away from the connecting rod, the eccentric block extends into the sliding ring and is slidably connected to the sliding ring, a limiting rod is fixed to the top of the sliding ring, the top of the limiting rod extends out of the transmission box and is slidably connected to the transmission box, and the bottom of the sliding ring is rotatably connected to the stirring assembly.

[0009] Preferably, the inner wall of the transmission box is symmetrically provided with sliding grooves, one end of a sliding rod is slidably connected in the sliding groove, and the other end of the sliding rod is fixedly connected to the side wall of the sliding ring.

[0010] Preferably, the stirring assembly includes a stirring shaft rotatably connected to the bottom of the sliding ring, the bottom of the stirring shaft passes through the sealing cover and extends into the smelting tank, a plurality of stirring rods are rotatably connected to the stirring shaft, and a plurality of paddles are fixedly connected to the stirring rods along the axial direction.

[0011] Preferably, a third bevel gear is fixedly connected to the connecting rod, and the third bevel gear is located between the disc and the inner wall of the transmission box. The third bevel gear is meshed with a fourth bevel gear, and the fourth bevel gear is fixedly connected to a vertical shaft, and the vertical shaft is rotatably connected to the bottom surface of the transmission box. A spur gear is fixedly connected to the vertical shaft, and the spur gear is slidably meshed with a column gear, and the column gear is fixedly connected to the stirring shaft.

[0012] Preferably, the driven wheel is connected to the driving wheel via a belt drive, and the driving wheel is fixedly connected to the output shaft of the motor.

[0013] Preferably, a feed pipe is fixedly connected to and communicated with one side of the top of the smelting tank, a discharge pipe is fixedly connected to and communicated with the bottom of the smelting tank away from the feed pipe, and a valve is installed on the discharge pipe.

[0014] Preferably, a plurality of legs are circumferentially fixed to the bottom surface of the base.

[0015] Preferably, a plurality of support plates are circumferentially fixed to the bottom surface of the gear ring, and the bottom of the support plates is fixed to the base.

[0016] The present invention discloses the following technical effects: a gas tank (not shown in the figure) is also provided on the driven wheel, and a plurality of top blowing pipes (not shown in the figure) are connected to the gas tank, and the top blowing pipes pass through the sealing cover and extend into the smelting tank, thereby delivering oxygen to the smelting tank; when in use, the driven wheel rotates to drive the smelting tank and the connecting assembly to rotate, and the connecting assembly engages with the gear ring to rotate, and the connecting assembly drives the transmission assembly to rotate through the rotation, and the transmission assembly drives the stirring assembly to rotate continuously in the smelting tank while also being able to flip up and down, thereby flipping the bottom solution to the upper layer, so that the solution is fully contacted with oxygen, and the reaction efficiency is accelerated. The present invention, through the joint action of the rotation of the smelting tank and the stirring assembly, not only stirs the solution in the horizontal direction, but also flips it in the vertical direction, thereby making the solution fully contact with oxygen, and the oxygen and solution are mixed more evenly, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0018] Figure 1 It is a structural schematic diagram of the present invention;

[0019] Figure 2 It is a main cross-sectional view of the transmission box of the present invention;

[0020] Figure 3 is a side sectional view of the transmission case of the present invention;

[0021] Figure 4 This is a schematic diagram of the internal structure of the smelting tank of the present invention;

[0022] Figure 5 It is a front view of the present invention;

[0023] In the figure: 1, base; 2, driven wheel; 3, support leg; 4, gear ring; 5, smelting pot; 6, sealing cover; 7, bracket; 8, transmission box; 9, limit rod; 10, connecting rod; 11, fixing plate; 12, first bevel gear; 13, second bevel gear; 14, transmission rod; 15, transmission wheel; 16, support plate; 17, belt; 18, motor; 19, driving wheel; 20, disc; 21, sliding ring; 22, sliding rod; 23, slide; 24, stirring shaft; 25, third bevel gear; 26, fourth bevel gear; 27, vertical shaft; 28, spur gear; 29, column gear; 30, eccentric block; 31, stirring rod; 32, paddle; 33, feed pipe; 34, discharge pipe. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] Reference Figure 1-Figure 5 As shown, this embodiment provides a top-blown smelting equipment for refining high-strength and corrosion-resistant stainless steel, including a base 1, a driven wheel 2 is rotatably connected to the top surface of the base 1, a smelting pot 5 is fixedly connected to the top surface of the driven wheel 2, a sealing cover 6 is fixedly installed on the top surface of the smelting pot 5, a bracket 7 is fixedly connected to the top of the smelting pot 5, a transmission box 8 is fixedly connected to the bracket 7, a transmission assembly is installed in the transmission box 8, a stirring assembly is rotatably connected to the bottom of the transmission assembly, the stirring assembly passes through the sealing cover 6 and extends into the smelting pot 5, a connecting assembly is rotatably connected to the top surface of the driven wheel 2, the connecting assembly is fixedly connected to the transmission assembly, a gear ring 4 is provided on the outside of the smelting pot 5, and the connecting assembly is meshed with the inner wall of the gear ring 4.

[0027] The driven wheel 2 is also provided with a gas tank (not shown in the figure), and the gas tank is connected with a plurality of top blowing pipes (not shown in the figure), and the top blowing pipes extend into the smelting tank 5 through the sealing cover 6, thereby delivering oxygen to the smelting tank 5; when in use, the driven wheel 2 rotates to drive the smelting tank 5 and the connecting assembly to rotate, and the connecting assembly engages with the gear ring 4 to rotate, and the connecting assembly drives the transmission assembly to rotate through the rotation, and the transmission assembly drives the stirring assembly to rotate continuously in the smelting tank 5 and can also flip up and down, thereby flipping the bottom solution to the upper layer, so that the solution is fully contacted with oxygen, and the reaction efficiency is accelerated. The present invention, through the joint action of the rotation of the smelting tank 5 and the stirring assembly, not only stirs the solution in the horizontal direction, but also flips it in the vertical direction, thereby making the solution fully contact with oxygen, and the oxygen and solution are mixed more evenly, thereby improving the work efficiency.

[0028] A further optimized solution is that the connecting assembly includes a transmission rod 14 rotatably connected to the top surface of the driven wheel 2, the top surface of the transmission rod 14 is rotatably connected to a fixed plate 11, the fixed plate 11 is fixed to the outer wall of the transmission box 8, a second bevel gear 13 is fixed to the top of the transmission rod 14, the second bevel gear 13 is meshed with a first bevel gear 12, a connecting rod 10 is fixed to the center of the first bevel gear 12, one end of the connecting rod 10 close to the first bevel gear 12 is rotatably connected to a support, the support is fixed to the bracket 7, the other end of the connecting rod 10 extends into the transmission box 8 and is fixed to the transmission assembly, a transmission wheel 15 is fixed to the transmission rod 14, and the transmission wheel 15 is meshed with the inner wall of the gear ring 4. The transmission wheel 15 is meshed with the gear ring 4, so that the transmission wheel 15 rotates as the driven wheel 2 rotates, the transmission wheel 15 drives the transmission rod 14 to rotate, the transmission rod 14 drives the second bevel gear 13 to rotate, the second bevel gear 13 drives the first bevel gear 12 to rotate, the first bevel gear 12 drives the connecting rod 10 to rotate, the connecting rod 10 drives the transmission assembly to rotate, and then the stirring assembly stirs the solution in the smelting tank 5; the support supports the connecting rod 10 to ensure the stability of the structure, and the fixing plate 11 limits the top of the transmission rod 14 to ensure the transmission performance of the transmission rod 14.

[0029] Further optimized solution, the transmission assembly includes a disc 20 fixedly connected to the end of the connecting rod 10, an eccentric block 30 fixedly connected to the side of the disc 20 away from the connecting rod 10, the eccentric block 30 extends into the sliding ring 21 and is slidably connected to the sliding ring 21, the top of the sliding ring 21 is fixedly connected to the limit rod 9, the top of the limit rod 9 extends out of the transmission box 8 and is slidably connected to the transmission box 8, and the bottom of the sliding ring 21 is rotatably connected to the stirring assembly. The connecting rod 10 drives the disc 20 to rotate, the disc 20 drives the eccentric block 30 to rotate, the eccentric block 30 drives the sliding ring 21 to reciprocate up and down, and the sliding ring 21 drives the stirring assembly to reciprocate up and down, thereby turning the solution up and down to enhance the stirring effect; the limit rod 9 plays a vertical limit role on the sliding ring 21 to ensure stability during reciprocating movement in the vertical direction.

[0030] In a further optimized solution, the inner wall of the transmission box 8 is symmetrically provided with a slide groove 23, one end of the sliding rod 22 is slidably connected in the slide groove 23, and the other end of the sliding rod 22 is fixedly connected to the side wall of the sliding ring 21. When the sliding ring 21 reciprocates, it drives the sliding rod 22 to reciprocate in the slide groove 23. The setting of the sliding rod 22 and the slide groove 23 limits the sliding ring 21 in the horizontal direction, prevents the sliding ring 21 from rotating, and ensures the stability of the transmission effect.

[0031] Further optimizing the scheme, the stirring assembly includes a stirring shaft 24 rotatably connected to the bottom of the sliding ring 21, the bottom of the stirring shaft 24 passes through the sealing cover 6 and extends into the smelting tank 5, and a plurality of stirring rods 31 are rotatably connected to the stirring shaft 24, and a plurality of paddles 32 are fixedly connected to the stirring rods 31 along the axial direction. The sliding ring 21 drives the stirring shaft 24 to reciprocate up and down, and the stirring shaft 24 drives the stirring rod 31 to reciprocate. When the stirring rod 31 moves up and down, the contact between the paddle 32 and the solution causes the paddle 32 to rotate, thereby turning the solution in the vertical direction to accelerate the reaction efficiency.

[0032] Further optimization scheme, the third bevel gear 25 is fixedly connected to the connecting rod 10, the third bevel gear 25 is located between the disc 20 and the inner wall of the transmission box 8, the third bevel gear 25 is meshed with the fourth bevel gear 26, the fourth bevel gear 26 is fixedly connected with the vertical shaft 27, the vertical shaft 27 is rotatably connected to the inner bottom surface of the transmission box 8, a spur gear 28 is fixedly connected to the vertical shaft 27, the spur gear 28 is slidably meshed with a column gear 29, and the column gear 29 is fixedly connected to the stirring shaft 24. The connecting rod 10 drives the disc 20 to rotate and also drives the third bevel gear 25 to rotate, the third bevel gear 25 drives the fourth bevel gear 26 to rotate, the fourth bevel gear 26 drives the vertical shaft 27 to rotate, the vertical shaft 27 drives the spur gear 28 to rotate, and the spur gear 28 drives the column gear 29 to rotate, that is, while the stirring shaft 24 reciprocates up and down, the stirring shaft 24 itself is also rotating, thereby improving the stirring efficiency and making the oxygen and solution mixed more evenly.

[0033] In a further optimized solution, the driven wheel 2 is connected to the driving wheel 19 through the belt 17, and the driving wheel 19 is fixedly connected to the output shaft of the motor 18. The motor 18 drives the driving wheel 19 to rotate, and the driving wheel 19 drives the driven wheel 2 to rotate through the belt 17, providing driving force to the driven wheel 2, so as to facilitate the normal operation of the overall mixing work.

[0034] In a further optimized solution, a feed pipe 33 is fixedly connected to and communicated with one side of the top of the smelting tank 5, and a discharge pipe 34 is fixedly connected to and communicated with the bottom of the smelting tank 5 away from the feed pipe 33, and a valve is installed on the discharge pipe 34. The feed pipe 33 is used to add the solution into the smelting tank 5, and the solution is taken out from the discharge pipe 34 after the reaction is completed. The setting of the valve can effectively control the opening and closing of the discharge pipe 34 to prevent the solution from leaking out during the stirring process.

[0035] In a further optimized solution, a plurality of legs 3 are fixedly connected to the bottom surface of the base 1 in the circumferential direction. The legs 3 support the base 1 and ensure the stability of the structure.

[0036] In a further optimized solution, a plurality of support plates 16 are fixedly connected to the bottom surface of the gear ring 4 in the circumferential direction, and the bottom of the support plate 16 is fixedly connected to the base 1. The support plate 16 fixes and supports the gear ring 4 so that the gear ring 4 is in a fixed position, thereby facilitating the self-rotation of the transmission wheel 15 when it rotates, thereby ensuring good transmission performance.

[0037] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0038] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A top-blown smelting equipment for refining high-strength corrosion-resistant stainless steel, characterized in that: The invention comprises a base (1), the top surface of the base (1) is rotatably connected to a driven wheel (2), the top surface of the driven wheel (2) is fixedly connected to a smelting pot (5), the top surface of the smelting pot (5) is fixedly installed with a sealing cover (6), the top of the smelting pot (5) is fixedly connected to a bracket (7), the bracket (7) is fixedly connected to a transmission box (8), a transmission assembly is installed in the transmission box (8), the bottom of the transmission assembly is rotatably connected to a stirring assembly, the stirring assembly passes through the sealing cover (6) and extends into the smelting pot (5), the top surface of the driven wheel (2) is rotatably connected to a connecting assembly, the connecting assembly is fixedly connected to the transmission assembly, the outer side of the smelting pot (5) is provided with a gear ring (4), and the connecting assembly is meshed with the inner wall of the gear ring (4).

2. The top-blown smelting equipment for refining high-strength corrosion-resistant stainless steel according to claim 1, characterized in that: The connecting assembly comprises a transmission rod (14) rotatably connected to the top surface of the driven wheel (2); the top surface of the transmission rod (14) is rotatably connected to a fixing plate (11); the fixing plate (11) is fixedly connected to the outer wall of the transmission box (8); the top of the transmission rod (14) is fixedly connected to a second bevel gear (13); the second bevel gear (13) is meshed with a first bevel gear (12); the center of the first bevel gear (12) is fixedly connected to a connecting rod (10); one end of the connecting rod (10) close to the first bevel gear (12) is rotatably connected to a support; the support is fixedly connected to a bracket (7); the other end of the connecting rod (10) extends into the transmission box (8) and is fixedly connected to the transmission assembly; a transmission wheel (15) is fixedly connected to the transmission rod (14); the transmission wheel (15) is meshed with the inner wall of the gear ring (4).

3. The top-blown smelting equipment for refining high-strength corrosion-resistant stainless steel according to claim 2, characterized in that: The transmission assembly comprises a disc (20) fixedly connected to the end of the connecting rod (10); an eccentric block (30) is fixedly connected to the side of the disc (20) away from the connecting rod (10); the eccentric block (30) extends into the sliding ring (21) and is slidably connected to the sliding ring (21); a limiting rod (9) is fixedly connected to the top of the sliding ring (21); the top of the limiting rod (9) extends out of the transmission box (8) and is slidably connected to the transmission box (8); and the bottom of the sliding ring (21) is rotatably connected to the stirring assembly.

4. The top-blown smelting equipment for refining high-strength corrosion-resistant stainless steel according to claim 3, characterized in that: The inner wall of the transmission box (8) is symmetrically provided with a sliding groove (23), one end of a sliding rod (22) is slidably connected in the sliding groove (23), and the other end of the sliding rod (22) is fixedly connected to the side wall of the sliding ring (21).

5. The top-blown smelting equipment for refining high-strength corrosion-resistant stainless steel according to claim 3, characterized in that: The stirring assembly comprises a stirring shaft (24) rotatably connected to the bottom of the sliding ring (21); the bottom of the stirring shaft (24) passes through the sealing cover (6) and extends into the smelting tank (5); a plurality of stirring rods (31) are rotatably connected to the stirring shaft (24); and a plurality of paddles (32) are fixedly connected to the stirring rods (31) along the axial direction.

6. The top-blown smelting equipment for refining high-strength corrosion-resistant stainless steel according to claim 5, characterized in that: A third bevel gear (25) is fixedly connected to the connecting rod (10), and the third bevel gear (25) is located between the disc (20) and the inner wall of the transmission box (8). The third bevel gear (25) is meshed with a fourth bevel gear (26), and the fourth bevel gear (26) is fixedly connected to a vertical shaft (27), and the vertical shaft (27) is rotatably connected to the inner bottom surface of the transmission box (8). A spur gear (28) is fixedly connected to the vertical shaft (27), and the spur gear (28) is slidably meshed with a column gear (29), and the column gear (29) is fixedly connected to the stirring shaft (24).

7. The top-blown smelting equipment for refining high-strength corrosion-resistant stainless steel according to claim 1, characterized in that: The driven wheel (2) is connected to a driving wheel (19) via a belt (17), and the driving wheel (19) is fixedly connected to an output shaft of a motor (18).

8. The top-blown smelting equipment for refining high-strength corrosion-resistant stainless steel according to claim 1, characterized in that: A feed pipe (33) is fixedly connected to and communicated with one side of the top of the smelting tank (5), and a discharge pipe (34) is fixedly connected to and communicated with the bottom of the smelting tank (5) away from the feed pipe (33), wherein a valve is installed on the discharge pipe (34).

9. The top-blown smelting equipment for refining high-strength corrosion-resistant stainless steel according to claim 1, characterized in that: A plurality of supporting legs (3) are fixedly connected in the circumferential direction to the bottom surface of the base (1).

10. The top-blown smelting equipment for refining high-strength corrosion-resistant stainless steel according to claim 1, characterized in that: A plurality of support plates (16) are fixedly connected to the bottom surface of the gear ring (4) in the circumferential direction, and the bottom of the support plate (16) is fixedly connected to the base (1).

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