A composite nitrogen regulating and carbon additive smelting injection and nitrogen-carbon synergistic regulation device

Abstract

The application provides a composite nitrogen-regulating and carbon-increasing agent smelting injection and nitrogen-carbon synergic regulation device, and belongs to the technical field of smelting, which comprises a bottom plate, a mixing mechanism is arranged on the top of the bottom plate, a smelting mechanism and a moving mechanism are fixedly connected in sequence from front to back on one side of the top of the bottom plate, and an injection mechanism is arranged between the mixing mechanism and the smelting mechanism; the mixing mechanism comprises a mixing box, the bottom of the mixing box is fixedly connected with the top of the bottom plate, and first and second feeding members are arranged on the top of the mixing box and the front and rear sides thereof. The composite action of'reciprocal movement + rotary stirring' greatly increases the contact area of the carbon-increasing agent and the metal liquid, realizes the uniform distribution of nitrogen and carbon elements in the metal liquid, and thus completes efficient nitrogen-carbon synergic regulation. By arranging a high-precision metering pump, the delivery amount of the nitrogen-regulating agent and the carbon-increasing agent can be accurately controlled according to the nitrogen-carbon regulation requirement of the metal liquid, the matching error can be accurately controlled, and the stability of the product quality is ensured.

Description

Technical Field

[0001] This invention belongs to the field of smelting technology, specifically relating to a composite nitrogen-regulating and carbon-enhancing agent smelting injection and nitrogen-carbon synergistic control device. Background Technology

[0002] The smelting injection and nitrogen-carbon synergistic regulation technology of composite nitrogen-regulating and carbon-reinforcing agents is widely used in fields such as iron and steel metallurgy and special alloy manufacturing. Its core purpose is to precisely regulate the nitrogen and carbon content in metal materials by injecting nitrogen-regulating agents and carbon-reinforcing agents into molten metal, so as to improve the mechanical properties of materials such as strength, hardness, and wear resistance.

[0003] CN114322548B discloses an iron ingot smelting device. The technical problem this invention aims to solve is to provide an iron ingot smelting device that requires no constant worker supervision and offers high safety. To address this problem, this invention provides an iron ingot smelting device comprising: a support frame with a receiving frame connected thereto; a support plate connected to the support frame; a smelting furnace connected to the support plate; an opening mechanism connected to the support frame; and a first transmission mechanism connected to the support frame. The opening mechanism automatically discharges and shapes the molten iron ingots, saving manpower and improving smelting safety. The flip-top mechanism facilitates the addition of iron ingots, and closing the lid increases the internal temperature of the smelting furnace, thereby improving smelting efficiency.

[0004] Announcement No. CN112197581A discloses an integrated oxygen bottom-blown smelting furnace production equipment, belonging to the field of metallurgical equipment technology. It solves the problem that existing smelting furnaces cannot effectively adjust the flowability of the molten metal during use, making it difficult to ensure the uniformity of mixing between oxygen and chemicals. The invention includes a mounting base; a set of left support seats are rotatably connected to the upper left side of the mounting base; the chemical tank is connected to the bottom of the smelting furnace body through an oxygen delivery pipe; a set of adjusting drive components are fixedly connected to the top right side of the mounting base; and a set of adjusting active components are rotatably connected inside the mounting base. This invention enables the adjustment of the angle of the smelting furnace body, changes the flowability of the material, improves the reaction effect, ensures uniform mixing of chemicals and oxygen, effectively avoids uneven mixing of oxygen and chemicals, effectively reduces the volume of oxygen bubbles, improves the mixing effect of oxygen and molten metal, and enhances the smelting effect.

[0005] Existing technologies, such as the iron block smelting device with announcement number CN114322548B, can automatically discharge and shape molten iron, but lack precise control over raw material mixing and cannot accurately control the raw material ratio according to different needs. The integrated production equipment of oxygen bottom blowing smelting furnace with announcement number CN112197581A can adjust the angle of the main body of the smelting furnace to ensure the uniformity of the mixing of the chemical and oxygen, but it is insufficient in terms of the smelting injection of composite nitrogen regulating and carbon raising agents and the synergistic control of nitrogen and carbon. It cannot achieve precise metering, delivery and preheating of nitrogen regulating agents and carbon raising agents, and it is difficult to avoid the problem of raw materials clogging the delivery channel due to low temperature agglomeration. Moreover, it cannot significantly increase the contact area between the carbon raising agent and the molten metal through composite actions to achieve uniform distribution of nitrogen and carbon elements.

[0006] Therefore, existing nitrogen-regulating and carbon-enhancing agent smelting and injection and nitrogen-carbon synergistic control devices are not suitable for the precise proportioning and uniform mixing of nitrogen-regulating and carbon-enhancing agents, as well as the uniform distribution of nitrogen and carbon elements in the molten metal. Summary of the Invention

[0007] Based on the problems existing in the prior art, the present invention proposes a composite nitrogen-regulating and carbon-enhancing agent smelting injection and nitrogen-carbon synergistic control device, which is suitable for precise proportioning and uniform mixing of nitrogen-regulating agent and carbon-enhancing agent, as well as for uniform distribution of nitrogen and carbon elements in molten metal.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: a composite nitrogen-regulating and carbon-enhancing agent melting and injection and nitrogen-carbon synergistic control device, comprising a base plate, a mixing mechanism disposed on the top of the base plate, a melting mechanism and a moving mechanism being fixedly connected sequentially from front to back on one side of the top of the base plate, and an injection mechanism disposed between the mixing mechanism and the melting mechanism; the mixing mechanism includes a mixing box, the bottom of the mixing box being fixedly connected to the top of the base plate, a first feeding component and a second feeding component being disposed on the front and rear sides of the top of the mixing box, and a mixing component being disposed on one side of the mixing box; the mixing box... A heating plate is fixedly connected to the bottom of the inner cavity; the smelting mechanism includes a support plate, the bottom of which is fixedly connected to the top of the base plate, and a connecting rod is movably connected to the opposite side of the support plate via a bearing. A smelting furnace is fixedly connected to the opposite end of the connecting rod. A first commutator and a first motor are fixedly connected in sequence to the top front of the support plate. The output end of the first motor is fixedly connected to the input end of the commutator, and the output end of the commutator is fixedly connected to one end of the connecting rod. A furnace cover is provided on the top of the smelting furnace, and a homogenizing component is provided on the top of the furnace cover. An induction heating coil is installed through the inner wall of the smelting furnace.

[0009] Preferably, both the first and second feeding components include a vertical rod, the bottom of which is fixedly connected to the top of the mixing tank, a storage tank is fixedly connected to the top of the vertical rod, a high-precision metering pump is fixedly connected to the top of the mixing tank, the bottom of the high-precision metering pump is connected to the mixing tank, and the top of the high-precision metering pump is connected to the bottom of the storage tank.

[0010] Preferably, the mixing component includes a fixed frame, one side of which is fixedly connected to a mixing box. A first rotating rod is movably connected to one side of the inner cavity of the mixing box via a bearing. Evenly distributed stirring blades are fixedly connected to the surface of the first rotating rod. One end of the first rotating rod extends into the inner cavity of the fixed frame and is fixedly connected to a first gear. A second motor is fixedly connected to one side of the fixed frame. The output end of the second motor passes through the inner cavity of the fixed frame and is fixedly connected to a second gear that meshes with the first gear.

[0011] Preferably, the homogenizing component includes a housing, the bottom of which is fixedly connected to the top of the furnace cover. A movable component is provided in the inner cavity of the housing, and a connecting plate is fixedly connected to the bottom of the movable component. A second rotating rod is movably connected to the bottom of the connecting plate via a bearing. A circumferentially distributed stirring rod is fixedly connected to the surface of the second rotating rod. The top of the second rotating rod extends to the top of the connecting plate and is fixedly connected to a third gear. A connecting block is fixedly connected to the top of the back side of the inner cavity of the housing. Toothed plates that mesh with the third gear are fixedly connected to both sides of the connecting block. The side of the toothed plate away from the connecting block is fixedly connected to the inner wall of the housing. A sliding groove is fixedly connected to the opposite side of the connecting plate. An elliptical plate is provided in the inner cavity of the sliding groove. A third motor is fixedly connected to the front side of the housing. The output end of the third motor passes through the inner cavity of the housing and is fixedly connected to the elliptical plate. A spring is fixedly connected to the side of the connecting plate away from the connecting plate. The end of the spring away from the connecting plate is fixedly connected to the inner wall of the housing.

[0012] Preferably, the movable component includes a slide rod, both ends of which are fixedly connected to the inner wall of the housing, and a sliding sleeve is slidably connected to the surface of the slide rod, with the bottom of the sliding sleeve fixedly connected to the top of the connecting plate.

[0013] Preferably, the moving mechanism includes a lifting component, which is fixed to one side of the top of the base plate. A rotating component is fixedly connected to the top of the lifting component, and a connecting arm is fixedly connected to the top of the rotating component. The other end of the connecting arm is fixedly connected to the housing.

[0014] Preferably, the lifting component includes a first bracket, the bottom of which is fixedly connected to the top of the base plate, and a hydraulic telescopic rod is fixedly connected to the top of the inner cavity of the first bracket, with the output end of the hydraulic telescopic rod extending through to the top of the first bracket.

[0015] Preferably, the rotating component includes a housing, the bottom of which is fixedly connected to the output end of the hydraulic telescopic rod, and a second commutator and a fourth motor are fixedly connected sequentially to the bottom of the inner cavity of the housing. The output end of the fourth motor is fixedly connected to the input end of the second commutator, and the output end of the second commutator passes through the housing and is fixedly connected to the connecting arm.

[0016] Preferably, the injection mechanism includes a support frame, the bottom of which is fixedly connected to the top of the mixing tank, a lateral adjustment component is fixedly connected to the bottom of the inner cavity of the support frame, a depth adjustment component is fixedly connected to the bottom of the lateral adjustment component, and a conveying pump is fixedly connected to the top of the mixing tank, with the bottom of the conveying pump communicating with the top of the mixing tank.

[0017] Preferably, the lateral adjustment component includes a protective shell, the inner wall of which is movably connected to a threaded rod via a bearing, a fifth motor is fixedly connected to one side of the protective shell, the output end of the fifth motor is fixedly connected to one end of the threaded rod, a movable sleeve is threadedly connected to the surface of the threaded rod, a sliding rod is provided through the surface of the movable sleeve, and both ends of the sliding rod are fixedly connected to the inner wall of the protective shell. The depth adjustment component includes a Z-shaped plate, the movable sleeve is fixed to one side of the top of the Z-shaped plate, an electric telescopic rod is fixedly connected to the other side of the top of the Z-shaped plate, a connecting frame is fixedly connected to the output end of the electric telescopic rod, an injection pipe is fixedly connected to the bottom of the connecting frame, and the top of the delivery pump is connected to the injection pipe via a flexible hose.

[0018] Compared with the prior art, the advantages and positive effects of the composite nitrogen-regulating and carbon-enhancing agent smelting and injection and nitrogen-carbon synergistic control device of the present invention are as follows: 1. This invention, by incorporating a high-precision metering pump, can precisely control the delivery volume of nitrogen regulator and carbon raiser according to the required nitrogen and carbon regulation of liquid metal. The proportioning error can be accurately controlled, ensuring the stability of product quality. Simultaneously, the second motor of the mixing unit drives the stirring blades to rotate, uniformly mixing the raw materials. Furthermore, the heating plate preheats the mixture to over 500°C, effectively preventing the raw materials from clumping and blocking the conveying channel due to low-temperature agglomeration, thus improving production efficiency.

[0019] 2. The lateral adjustment component and depth adjustment component of the injection mechanism of the present invention can adjust the lateral position of the injection pipe and the depth of insertion into the molten metal, respectively. Combined with the delivery pump, the preheated composite carbon raiser can be accurately injected into the molten metal, laying a good foundation for nitrogen-carbon synergistic regulation. In addition, the moving mechanism can flexibly open and close the furnace cover of the smelting furnace, which facilitates the feeding and discharging operations.

[0020] 3. The homogenizing component of this invention drives the elliptical plate to rotate via a third motor, causing the connecting plate to move back and forth along the slide bar. At the same time, the third gear at the top of the second rotating rod meshes with the toothed plate, driving the stirring rod to rotate. Through the combined action of "reciprocating movement + rotational stirring", the contact area between the carbon raiser and the molten metal is greatly increased, achieving uniform distribution of nitrogen and carbon elements in the molten metal, thereby completing efficient nitrogen and carbon synergistic regulation. Attached Figure Description

[0021] Figure 1 This is a first-view perspective three-dimensional structural diagram of the composite nitrogen-regulating and carbon-raising agent smelting injection and nitrogen-carbon synergistic control device according to the present invention. Figure 2 This is a second-view perspective three-dimensional structural diagram of the composite nitrogen-regulating and carbon-raising agent smelting injection and nitrogen-carbon synergistic control device according to the present invention. Figure 3 This is a schematic diagram of the mixing mechanism of the composite nitrogen-regulating and carbon-enhancing agent smelting and injection and nitrogen-carbon synergistic regulation device according to the present invention. Figure 4 This is a schematic diagram showing the connection between the mixing tank and mixing components of the composite nitrogen-regulating and carbon-enhancing agent smelting and injection and nitrogen-carbon synergistic control device according to the present invention; Figure 5 This is a schematic diagram of the injection mechanism of the composite nitrogen-regulating and carbon-enhancing agent smelting injection and nitrogen-carbon synergistic control device according to the present invention. Figure 6 An exploded view of the transverse adjustment component of the composite nitrogen-regulating and carbon-enhancing agent smelting injection and nitrogen-carbon synergistic control device according to the present invention; Figure 7 This is a partial structural schematic diagram of the composite nitrogen-regulating and carbon-enhancing agent smelting injection and nitrogen-carbon synergistic control device according to the present invention. Figure 8 This is a schematic diagram of the moving mechanism of the composite nitrogen-regulating and carbon-enhancing agent smelting injection and nitrogen-carbon synergistic control device according to the present invention. Figure 9 This is a perspective cross-sectional view of the rotating component of the composite nitrogen-regulating and carbon-enhancing agent smelting and injection and nitrogen-carbon synergistic control device according to the present invention.

[0022] Figure 10 This is a perspective view of the melting mechanism of the composite nitrogen-regulating and carbon-enhancing agent melting injection and nitrogen-carbon synergistic control device according to the present invention.

[0023] Figure 11 This is a perspective view of the homogenizing component of the composite nitrogen-regulating and carbon-enhancing agent smelting and injection and nitrogen-carbon synergistic control device according to the present invention.

[0024] Figure 12 This is a perspective view of the smelting furnace and furnace cover of the composite nitrogen-regulating and carbon-enhancing agent smelting injection and nitrogen-carbon synergistic control device according to the present invention.

[0025] Explanation of reference numerals in the attached drawings: 100, base plate; 200, mixing mechanism; 300, smelting mechanism; 400, moving mechanism; 500, injection mechanism; 210, mixing tank; 220, first feeding component; 230, second feeding component; 240, mixing component; 250, heating plate; 310, support plate; 320, connecting rod; 330, smelting furnace; 340, first commutator; 350, first motor; 360, furnace cover; 370, homogenizing component; 380, induction heating coil; 221, vertical rod; 222, storage tank; 223, high-precision metering pump; 241, fixed frame; 242, first rotating rod; 243, stirring blade; 244, first gear; 245, second motor; 246, second gear; 371, housing; 372, moving... Moving part; 373, connecting plate; 374, second rotating rod; 375, stirring rod; 376, third gear; 377, connecting block; 378, toothed plate; 379, slide groove; 3710, elliptical plate; 3711, third motor; 3712, spring; 410, lifting part; 420, rotating part; 430, connecting arm; 411, first bracket; 412, hydraulic telescopic rod; 421, housing; 422, second commutator; 423, fourth motor; 510, support frame; 520, lateral adjustment part; 530, depth adjustment part; 540, delivery pump; 521, protective shell; 522, threaded rod; 523, fifth motor; 524, moving sleeve; 531, Z-shaped plate; 532, electric telescopic rod; 533, connecting frame; 534, injection pipe. Detailed Implementation

[0026] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0027] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways than those described herein, and therefore the invention is not limited to the specific embodiments disclosed in the following specification.

[0028] The present invention adopts the following technical solution: a composite nitrogen-regulating and carbon-enhancing agent melting and injection and nitrogen-carbon synergistic control device, including a base plate 100, a mixing mechanism 200 disposed on the top of the base plate 100, a melting mechanism 300 and a moving mechanism 400 sequentially fixedly connected from front to back on one side of the top of the base plate 100, and an injection mechanism 500 disposed between the mixing mechanism 200 and the melting mechanism 300; the mixing mechanism 200 includes a mixing box 210, the bottom of the mixing box 210 is fixedly connected to the top of the base plate 100, a first feeding component 220 and a second feeding component 230 are disposed on the front and rear sides of the top of the mixing box 210, a mixing component 240 is disposed on one side of the mixing box 210, and a heating plate 250 is fixedly connected to the bottom of the inner cavity of the mixing box 210; the melting mechanism 300... The system includes a support plate 310, the bottom of which is fixedly connected to the top of the base plate 100. A connecting rod 320 is movably connected to the opposite side of the support plate 310 via a bearing. A smelting furnace 330 is fixedly connected to the opposite end of the connecting rod 320. A first commutator 340 and a first motor 350 are fixedly connected sequentially to the top front of the support plate 310. The output end of the first motor 350 is fixedly connected to the input end of the commutator, and the output end of the commutator is fixedly connected to one end of the connecting rod 320. A furnace cover 360 is provided on the top of the smelting furnace 330, and a homogenizing component 370 is provided on the top of the furnace cover 360. An induction heating coil 380 is provided through the inner wall of the smelting furnace 330. A control box is fixedly connected to one side of the top of the base plate 100, and a control panel is fixedly connected to the top front of the control box.

[0029] Using the above technical solutions, in terms of raw material processing, the mixing mechanism 200 integrates high-precision metering, uniform mixing, and raw material preheating functions, which can control the ratio error of nitrogen regulator and carbonizer within ±2%. Preheating to above 500℃ completely avoids agglomeration and blockage, and improves the stability of conveying. The melting mechanism 300 achieves uniform metal melting through the rotation design of the induction heating coil 380 and the melting furnace 330, providing a stable molten metal environment for nitrogen and carbon regulation. In terms of precise regulation, the injection mechanism 500 can flexibly adjust the injection position and depth to ensure that the carbonizer is uniformly integrated into the molten metal. The homogenizing component 370 reduces the local content difference of nitrogen and carbon elements through compound stirring action. The moving mechanism 400 realizes the automatic opening and closing of the furnace cover 360° and the precise 100° tilting of the melting furnace 330, improving operating efficiency. The overall design improves the precision of nitrogen and carbon regulation and production efficiency, fully meeting the needs of high-end alloy manufacturing.

[0030] In addition, both the first feeding component 220 and the second feeding component 230 include a vertical rod 221. The bottom of the vertical rod 221 is fixedly connected to the top of the mixing tank 210, and the top of the vertical rod 221 is fixedly connected to a storage tank 222. The top of the mixing tank 210 is fixedly connected to a high-precision metering pump 223. The bottom of the high-precision metering pump 223 is connected to the mixing tank 210, and the top of the high-precision metering pump 223 is connected to the bottom of the storage tank 222. The metering accuracy of the high-precision metering pump 223 can reach ±0.5%, which is significantly improved compared to the ±5% error of existing simple metering devices. This ensures that the composition of each batch of raw materials is consistent and guarantees the stability of the metal nitrogen and carbon content from the source. The storage tank 222 is fixed to the top of the mixing tank 210 through the vertical rod 221, which shortens the raw material transportation path and reduces raw material residue and waste. The metering pump is directly connected to the storage tank 222 and the mixing tank 210, avoiding secondary pollution and loss caused by manual transfer. At the same time, it realizes the automation of raw material transportation and reduces the labor intensity of operators.

[0031] Furthermore, the mixing component 240 includes a fixed frame 241. One side of the fixed frame 241 is fixedly connected to the mixing box 210. A first rotating rod 242 is movably connected to one side of the inner cavity of the mixing box 210 via a bearing. A uniformly distributed stirring blade 243 is fixedly connected to the surface of the first rotating rod 242. One end of the first rotating rod 242 extends into the inner cavity of the fixed frame 241 and is fixedly connected to a first gear 244. A second motor 245 is fixedly connected to one side of the fixed frame 241. The output end of the second motor 245 passes through the inner cavity of the fixed frame 241 and is fixedly connected to a second gear 246 that meshes with the first gear 244. The second motor 245 drives the first rotating rod 242 to rotate through gear meshing. Compared with belt drive, the transmission efficiency is improved, and the transmission is stable and slip-free, ensuring that the stirring blade 243 rotates at a constant speed. The uniformly distributed stirring blade 243 can cover the entire inner cavity of the mixing box 210, preventing raw materials from settling at the bottom of the box. At the same time, the torque of the gear transmission structure is greater, which can easily stir high-viscosity mixed raw materials, greatly improving the mixing efficiency.

[0032] Preferably, the homogenizing component 370 includes a housing 371, the bottom of which is fixedly connected to the top of the furnace cover 360. A movable component 372 is provided inside the housing 371. A connecting plate 373 is fixedly connected to the bottom of the movable component 372. A second rotating rod 374 is movably connected to the bottom of the connecting plate 373 via a bearing. A circumferentially distributed stirring rod 375 is fixedly connected to the surface of the second rotating rod 374. The top of the second rotating rod 374 extends to the top of the connecting plate 373 and is fixedly connected to a third gear 376. A connecting block 377 is fixedly connected to the top of the back side of the housing 371. Tooth plates 378 that mesh with the third gear 376 are fixedly connected to both sides of the connecting block 377. The side of the tooth plates 378 away from the connecting block 377 is fixedly connected to the inner wall of the housing 371. A sliding groove 379 is fixedly connected to the opposite side of the connecting plate 373. An elliptical plate 3710 is provided inside the sliding groove 379. A third electric... The output end of the third motor 3711 extends through the inner cavity of the housing 371 and is fixedly connected to the elliptical plate 3710. A spring 3712 is fixedly connected to the opposite side of the connecting plate 373. The end of the spring 3712 away from the connecting plate 373 is fixedly connected to the inner wall of the housing 371. When the elliptical plate 3710 pushes the connecting plate 373 to move back and forth, the spring 3712 can buffer the impact of the movement of the connecting plate 373, avoiding the shaking of the stirring rod 375 due to the impact, ensuring that the stirring rod 375 always moves within the preset range and evenly covers the inner cavity of the melting furnace 330. The combined action of "reciprocating movement + rotational stirring" increases the contact area between the carbon raiser and the molten metal by more than 2 times, shortens the homogenization time, reduces the local content difference of nitrogen and carbon elements, and solves the problem of component segregation. At the same time, the spring 3712 can assist the connecting plate 373 to reset, avoiding movement jamming caused by the rotation gap of the elliptical plate 3710, and ensuring the continuous and stable homogenization process.

[0033] In another embodiment, the movable component 372 includes a slide rod, both ends of which are fixedly connected to the inner wall of the housing 371. A sliding sleeve is slidably connected to the surface of the slide rod, and the bottom of the sliding sleeve is fixedly connected to the top of the connecting plate 373. The sliding engagement between the slide rod and the sliding sleeve forces the positioning plate to move only along the direction of the slide rod, thus preventing the connecting plate 373 from shifting and causing the stirring rod 375 to collide with the inner wall of the melting furnace 330.

[0034] Furthermore, the moving mechanism 400 includes a lifting component 410, which is fixed to one side of the top of the base plate 100. A rotating component 420 is fixedly connected to the top of the lifting component 410, and a connecting arm 430 is fixedly connected to the top of the rotating component 420. The other end of the connecting arm 430 is fixedly connected to the housing 371. The furnace cover 360 is lifted by the lifting component 410 and rotated by the rotating component 420 to move it. The entire process is automated, shortening working time and reducing labor intensity. The fixed connection between the connecting arm 430 and the housing 371 can simultaneously drive the furnace cover 360 and the homogenizing component 370 to move, avoiding the tedious process of disassembling the homogenizing component 370 separately. At the same time, the lifting height and rotation angle can be precisely controlled to ensure that the furnace cover 360 accurately aligns with the opening of the smelting furnace 330 when sealing, thus improving the sealing performance.

[0035] Preferably, the lifting component 410 includes a first bracket 411, the bottom of which is fixedly connected to the top of the base plate 100. A hydraulic telescopic rod 412 is fixedly connected to the top of the inner cavity of the first bracket 411. The output end of the hydraulic telescopic rod 412 extends through to the top of the first bracket 411. A movable guide rail is fixedly connected to one side of the first bracket 411. A connecting sleeve is slidably connected to the surface of the movable guide rail. A support rod is fixedly connected to the top of the connecting sleeve. The maximum load capacity of the hydraulic telescopic rod 412 can reach over 1000 kg, which is suitable for the lifting requirements of the large-size furnace cover 360 and the homogenizing component 370. The lifting speed of the hydraulic telescopic rod 412 can be precisely adjusted by the hydraulic system to avoid the furnace cover 360 shaking or colliding due to excessive lifting speed. The fixed structure of the first bracket 411 enhances the stability of the lifting process.

[0036] In addition, the rotating component 420 includes a housing 421. The bottom of the housing 421 is fixedly connected to the output end of the hydraulic telescopic rod 412, and the bottom of the housing 421 is fixedly connected to the top of the support rod. The bottom of the inner cavity of the housing 421 is sequentially fixedly connected to a second commutator 422 and a fourth motor 423. The output end of the fourth motor 423 is fixedly connected to the input end of the second commutator 422. The output end of the second commutator 422 passes through the housing 421 and is fixedly connected to the connecting arm 430. The fourth motor 423, in conjunction with the second commutator 422, can control the rotation angle error within ±0.5°, ensuring that the furnace cover 360 accurately stops on one side of the smelting furnace 330 after opening, without affecting the feeding, injection, and discharge operations. The second commutator 422 can convert the high-speed rotation of the fourth motor 423 into a low-speed, stable rotation, avoiding excessive centrifugal force and shaking of the furnace cover 360 due to excessive rotation.

[0037] On the other hand, the injection mechanism 500 includes a support frame 510, the bottom of which is fixedly connected to the top of the mixing tank 210. A horizontal adjustment component 520 is fixedly connected to the bottom of the inner cavity of the support frame 510, and a depth adjustment component 530 is fixedly connected to the bottom of the horizontal adjustment component 520. A delivery pump 540 is fixedly connected to the top of the mixing tank 210, and the bottom of the delivery pump 540 is connected to the top of the mixing tank 210. The horizontal adjustment component 520 can adjust the horizontal position of the injection pipe 534, and the depth adjustment component 530 can adjust the vertical depth of the injection pipe 534, ensuring that the injection pipe 534 is always inserted into the optimal depth area of ​​the molten metal, thereby improving the absorption rate of the carbon raiser. The direct connection between the delivery pump 540 and the mixing tank 210, combined with the raw material preheating function, avoids interruption of raw material delivery and ensures a continuous and stable injection process.

[0038] Furthermore, the lateral adjustment component 520 includes a protective shell 521. A threaded rod 522 is movably connected to the inner wall of the protective shell 521 via a bearing. A fifth motor 523 is fixedly connected to one side of the protective shell 521. The output end of the fifth motor 523 is fixedly connected to one end of the threaded rod 522. A movable sleeve 524 is threadedly connected to the surface of the threaded rod 522. A sliding rod is provided through the surface of the movable sleeve 524. Both ends of the sliding rod are fixedly connected to the inner wall of the protective shell 521. The depth adjustment component 530 includes a Z-shaped plate 531. The movable sleeve 524 is fixed to one side of the top of the Z-shaped plate 531. An electric telescopic rod 53 is fixedly connected to the other side of the top of the Z-shaped plate 531. 2. The output end of the electric telescopic rod 532 is fixedly connected to a connecting frame 533, and the bottom of the connecting frame 533 is fixedly connected to an injection pipe 534. The top of the delivery pump 540 is connected to the injection pipe 534 through a hose. The threaded rod 522 is driven to rotate by the fifth motor 523, so that the moving sleeve 524 moves smoothly along the slide bar, ensuring that the injection pipe 534 is accurately aligned with the optimal injection point of the molten metal. The electric telescopic rod 532 can realize step-by-step adjustment of the depth of the injection pipe 534 to adapt to the injection needs of molten metal at different liquid levels. The fixed connection between the connecting frame 533 and the injection pipe 534 can disperse the impact force during the injection process and prevent the injection pipe 534 from deforming.

[0039] The following specific embodiments further illustrate the composite nitrogen-regulating and carbon-enhancing agent smelting and injection and nitrogen-carbon synergistic control device of the present invention.

[0040] like Figures 1-12As shown, this invention provides a composite nitrogen-regulating and carbon-enhancing agent smelting and injection device with nitrogen-carbon synergistic control, including a base plate 100. A mixing mechanism 200 is disposed on the top of the base plate 100. A smelting mechanism 300 and a moving mechanism 400 are fixedly connected sequentially from front to back on one side of the top of the base plate 100. An injection mechanism 500 is disposed between the mixing mechanism 200 and the smelting mechanism 300. The mixing mechanism 200 includes a mixing tank 210. The bottom of the mixing tank 210 is fixedly connected to the top of the base plate 100. A first feeding component 220 and a second feeding component 230 are disposed on the front and rear sides of the top of the mixing tank 210. A mixing component 240 is disposed on one side of the mixing tank 210. The bottom of the inner cavity of the mixing tank 210 is fixed. A heating plate 250 is connected; the smelting mechanism 300 includes a support plate 310, the bottom of which is fixedly connected to the top of the base plate 100, and a connecting rod 320 is movably connected to the opposite side of the support plate 310 via a bearing. A smelting furnace 330 is fixedly connected to the opposite end of the connecting rod 320. A first commutator 340 and a first motor 350 are fixedly connected in sequence to the top front of the support plate 310. The output end of the first motor 350 is fixedly connected to the input end of the commutator, and the output end of the commutator is fixedly connected to one end of the connecting rod 320. A furnace cover 360 is provided on the top of the smelting furnace 330, and a homogenizing component 370 is provided on the top of the furnace cover 360. An induction heating coil 380 is provided through the inner wall of the smelting furnace 330.

[0041] The following section will explain the specific setup and function of the mixing mechanism 200, the melting mechanism 300, the homogenizing component 370, and the injection mechanism 500.

[0042] like Figure 1 , Figure 3 and Figure 4 As shown, the mixing mechanism 200 includes a mixing box 210, the bottom of which is fixedly connected to the top of the base plate 100. A first feeding component 220 and a second feeding component 230 are provided on the front and rear sides of the top of the mixing box 210. A mixing component 240 is provided on one side of the mixing box 210. A heating plate 250 is fixedly connected to the bottom of the inner cavity of the mixing box 210. The melting mechanism 300 includes a support plate 310, the bottom of which is fixedly connected to the top of the base plate 100. The opposite side of the support plate 310 is movable via a bearing. A connecting rod 320 is connected, and a smelting furnace 330 is fixedly connected to one end of the connecting rod 320. A first commutator 340 and a first motor 350 are fixedly connected in sequence to the top front of the support plate 310. The output end of the first motor 350 is fixedly connected to the input end of the commutator, and the output end of the commutator is fixedly connected to one end of the connecting rod 320. A furnace cover 360 is provided on the top of the smelting furnace 330, and a homogenizing component 370 is provided on the top of the furnace cover 360. An induction heating coil 380 is provided through the inner wall of the smelting furnace 330.

[0043] The combined effects of the mixing mechanism 200 and the smelting mechanism 300 are as follows: In terms of raw material processing, the mixing mechanism 200 integrates high-precision metering, uniform mixing, and raw material preheating functions, which can control the ratio error of nitrogen regulator and carbon raiser within ±2%. Preheating to above 500℃ completely avoids agglomeration and blockage, and improves the stability of conveying. The smelting mechanism 300 achieves uniform metal melting through the rotation design of the induction heating coil 380 and the smelting furnace 330, providing a stable molten metal environment for nitrogen and carbon regulation. In terms of precise regulation, the injection mechanism 500 can flexibly adjust the injection position and depth to ensure that the carbon raiser is uniformly integrated into the molten metal. The homogenizing component 370 reduces the local content difference of nitrogen and carbon elements through compound stirring action. The moving mechanism 400 realizes the automatic opening and closing of the furnace cover 360° and the precise 100° tilting of the smelting furnace 330, improving operating efficiency. The overall design improves the precision of nitrogen and carbon regulation and production efficiency, fully meeting the needs of high-end alloy manufacturing.

[0044] like Figure 2 , Figure 7 and Figure 11 As shown, the homogenizing component 370 includes a housing 371. The bottom of the housing 371 is fixedly connected to the top of the furnace cover 360. A movable component 372 is provided inside the housing 371. A connecting plate 373 is fixedly connected to the bottom of the movable component 372. A second rotating rod 374 is movably connected to the bottom of the connecting plate 373 via a bearing. A circumferentially distributed stirring rod 375 is fixedly connected to the surface of the second rotating rod 374. The top of the second rotating rod 374 extends to the top of the connecting plate 373 and is fixedly connected to a third gear 376. A connecting block 377 is fixedly connected to the top of the back side of the inner cavity of the housing 371. Both sides of the connecting block 377 are... A toothed plate 378 is fixedly connected to mesh with the third gear 376. The side of the toothed plate 378 away from the connecting block 377 is fixedly connected to the inner wall of the housing 371. A sliding groove 379 is fixedly connected to the opposite side of the connecting plate 373. An elliptical plate 3710 is provided in the inner cavity of the sliding groove 379. A third motor 3711 is fixedly connected to the front of the housing 371. The output end of the third motor 3711 passes through the inner cavity of the housing 371 and is fixedly connected to the elliptical plate 3710. A spring 3712 is fixedly connected to the side of the connecting plate 373 away from the connecting plate 373. The end of the spring 3712 away from the connecting plate 373 is fixedly connected to the inner wall of the housing 371.

[0045] The overall homogenizing component 370 achieves the following effect: when the elliptical plate 3710 pushes the connecting plate 373 to move back and forth, the spring 3712 can buffer the impact of the connecting plate 373's movement, preventing the stirring rod 375 from shaking due to the impact, ensuring that the stirring rod 375 always moves within the preset range and evenly covers the inner cavity of the melting furnace 330; the combined action of "reciprocating movement + rotational stirring" increases the contact area between the carburizing agent and the molten metal by more than 2 times, shortens the homogenization time, reduces the local content difference of nitrogen and carbon elements, and solves the problem of component segregation; at the same time, the spring 3712 can assist the connecting plate 373 in resetting, avoiding movement jamming caused by the rotation gap of the elliptical plate 3710, ensuring the continuous and stable homogenization process.

[0046] like Figure 1 and Figure 5 As shown, the injection mechanism 500 includes a support frame 510, the bottom of which is fixedly connected to the top of the mixing tank 210. A lateral adjustment component 520 is fixedly connected to the bottom of the inner cavity of the support frame 510, and a depth adjustment component 530 is fixedly connected to the bottom of the lateral adjustment component 520. A delivery pump 540 is fixedly connected to the top of the mixing tank 210, and the bottom of the delivery pump 540 communicates with the top of the mixing tank 210. The lateral adjustment component 520 includes a protective shell 521, and a threaded rod 522 is movably connected to the inner wall of the protective shell 521 via a bearing. A fifth motor 523 is fixedly connected to one side of the protective shell 521. The output end is fixedly connected to one end of the threaded rod 522. A movable sleeve 524 is threadedly connected to the surface of the threaded rod 522. A sliding rod is provided through the surface of the movable sleeve 524. Both ends of the sliding rod are fixedly connected to the inner wall of the protective shell 521. The depth adjustment component 530 includes a Z-shaped plate 531. The movable sleeve 524 is fixed to one side of the top of the Z-shaped plate 531. An electric telescopic rod 532 is fixedly connected to the other side of the top of the Z-shaped plate 531. A connecting frame 533 is fixedly connected to the output end of the electric telescopic rod 532. An injection pipe 534 is fixedly connected to the bottom of the connecting frame 533. The top of the delivery pump 540 is connected to the injection pipe 534 through a hose.

[0047] The entire injection mechanism 500 achieves the following effects: the horizontal adjustment component 520 can adjust the horizontal position of the injection tube 534, and the depth adjustment component 530 can adjust the vertical depth of the injection tube 534, ensuring that the injection tube 534 is always inserted into the optimal depth area of ​​the molten metal, thereby improving the absorption rate of the carbon raiser; the direct connection between the delivery pump 540 and the mixing tank 210, combined with the raw material preheating function, avoids interruption of raw material delivery and ensures continuous and stable injection process; the fifth motor 523 drives the threaded rod 522 to rotate, causing the moving sleeve 524 to move smoothly along the slide bar, ensuring that the injection tube 534 is accurately aligned with the optimal injection point of the molten metal; the electric telescopic rod 532 can realize step-by-step adjustment of the depth of the injection tube 534 to adapt to the injection needs of molten metal at different liquid levels; the fixed connection between the connecting frame 533 and the injection tube 534 can disperse the impact force during the injection process and prevent the injection tube 534 from deforming.

[0048] The working principle of the composite nitrogen-regulating and carbon-enhancing agent smelting injection and nitrogen-carbon synergistic control device is as follows: 1. First, the nitrogen-regulating agent and carbon-enhancing agent are respectively loaded into the storage tanks 222 of the first feeder 220 and the second feeder 230. According to the nitrogen and carbon control requirements of the liquid metal, the high-precision metering pump 223 at the top of the mixing tank 210 is started to accurately control the conveying amount of the two raw materials and quantitatively convey the raw materials into the mixing tank 210. Then, the mixing unit 240 is started: the second motor 245 drives the second gear 246 in the inner cavity of the fixed frame 241 to rotate. Through meshing with the first gear 244, the first rotating rod 242 and the surface stirring blade 243 in the mixing tank 210 are driven to rotate, so as to uniformly stir and mix the two raw materials. At the same time, the heating plate 250 at the bottom of the inner cavity of the mixing tank 210 is turned on to preheat the mixture to above 500°C to avoid the raw materials from caking due to low temperature and blocking the subsequent conveying channel, thus completing the preparation of the composite nitrogen-regulating and carbon-enhancing agent.

[0049] 2. The smelting furnace 330 is opened via the moving mechanism 400, and the hydraulic telescopic rod 412 of the lifting component 410 is activated, driving the rotating component 420 and the connecting arm 430 to rise, simultaneously lifting the furnace cover 360 and the homogenizing component 370; then the fourth motor 423 of the rotating component 420 is activated, driving the connecting arm 430 to rotate via the second commutator 422, moving the furnace cover 360 to one side of the smelting furnace 330, adding the metal raw material to be processed into the smelting furnace 330, and then the moving mechanism 400 is reversed to close the furnace cover 360. After that, the induction heating coil 380 of the smelting mechanism 300 is activated to heat the metal raw material in the smelting furnace 330. Electromagnetic induction heating is performed. After the metal is completely melted, the injection mechanism 500 is activated: the fifth motor 523 of the lateral adjustment component 520 drives the threaded rod 522 to rotate, causing the moving sleeve 524 to move along the slide rod, adjusting the lateral position of the injection pipe 534 to be directly above the opening of the melting furnace 330; the electric telescopic rod 532 of the depth adjustment component 530 pushes the connecting frame 533 and the injection pipe 534 down, inserting the injection pipe 534 into the molten metal to a preset depth; the delivery pump 540 is activated, and the preheated composite carbon raiser in the mixing tank 210 is precisely injected into the molten metal through the injection pipe 534, laying the foundation for nitrogen-carbon synergistic control.

[0050] 3. After the carbon raiser is injected, the homogenizing component 370 is started. The third motor 3711 drives the elliptical plate 3710 to rotate. The elliptical plate 3710 pushes the slide groove 379 and the connecting plate 373 to move back and forth along the slide rod of the moving part 372. The spring 3712 on the opposite side of the connecting plate 373 extends and retracts synchronously with the movement of the connecting plate 373 to ensure smooth movement. When the second rotating rod 374 at the bottom of the connecting plate 373 moves with the connecting plate 373, the third gear 376 at its top meshes with the toothed plate 378 in the housing 371, driving the second rotating rod 374 and the stirring rod 375 to rotate. Through the compound action of "reciprocating movement + rotation stirring", the contact area between the carbon raiser and the molten metal is greatly increased, achieving uniform distribution of nitrogen and carbon elements and completing the synergistic regulation of nitrogen and carbon. After the adjustment is completed, the furnace cover 360 is opened again by the moving mechanism 400, and the first motor 350 is started in conjunction with the first commutator 340 to drive the smelting furnace 330 to rotate 100° clockwise, so that the processed molten metal is discharged from the discharge port on the top right side of the smelting furnace 330, thus completing the entire smelting and adjustment process.

[0051] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments that can be applied to other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A composite nitrogen-regulating and carbon-enhancing agent smelting and injection device and a nitrogen-carbon synergistic control device, comprising a base plate (100), characterized in that: A mixing mechanism (200) is provided on the top of the base plate (100). A smelting mechanism (300) and a moving mechanism (400) are fixedly connected from front to back on one side of the top of the base plate (100). An injection mechanism (500) is provided between the mixing mechanism (200) and the smelting mechanism (300). The mixing mechanism (200) includes a mixing box (210), the bottom of which is fixedly connected to the top of the base plate (100). A first feeding component (220) and a second feeding component (230) are provided on the front and rear sides of the top of the mixing box (210). A mixing component (240) is provided on one side of the mixing box (210). A heating plate (250) is fixedly connected to the bottom of the inner cavity of the mixing box (210). The smelting mechanism (300) includes a support plate (310), the bottom of which is fixedly connected to the top of the base plate (100). A connecting rod (320) is movably connected to the opposite side of the support plate (310) via a bearing. A smelting furnace (330) is fixedly connected to the opposite end of the connecting rod (320). A first commutator (340) and a first motor (350) are fixedly connected in sequence to the top front of the support plate (310). The output end of the first motor (350) is fixedly connected to the input end of the commutator. The output end of the commutator is fixedly connected to one end of the connecting rod (320). A furnace cover (360) is provided on the top of the smelting furnace (330). A homogenizing component (370) is provided on the top of the furnace cover (360). An induction heating coil (380) is provided through the inner wall of the smelting furnace (330).

2. The composite nitrogen-regulating and carbon-enhancing agent smelting and injection and nitrogen-carbon synergistic control device according to claim 1, characterized in that: The first feeding component (220) and the second feeding component (230) both include a vertical rod (221). The bottom of the vertical rod (221) is fixedly connected to the top of the mixing tank (210). A storage tank (222) is fixedly connected to the top of the vertical rod (221). A high-precision metering pump (223) is fixedly connected to the top of the mixing tank (210). The bottom of the high-precision metering pump (223) is connected to the mixing tank (210). The top of the high-precision metering pump (223) is connected to the bottom of the storage tank (222).

3. The composite nitrogen-regulating and carbon-enhancing agent smelting and injection and nitrogen-carbon synergistic control device according to claim 1, characterized in that: The mixing component (240) includes a fixed frame (241), one side of which is fixedly connected to the mixing box (210). A first rotating rod (242) is movably connected to one side of the inner cavity of the mixing box (210) via a bearing. A uniformly distributed stirring blade (243) is fixedly connected to the surface of the first rotating rod (242). One end of the first rotating rod (242) extends into the inner cavity of the fixed frame (241) and is fixedly connected to a first gear (244). A second motor (245) is fixedly connected to one side of the fixed frame (241). The output end of the second motor (245) extends into the inner cavity of the fixed frame (241) and is fixedly connected to a second gear (246) that meshes with the first gear (244).

4. The composite nitrogen-regulating and carbon-enhancing agent smelting and injection and nitrogen-carbon synergistic control device according to claim 1, characterized in that: The homogenizing component (370) includes a housing (371), the bottom of which is fixedly connected to the top of a furnace cover (360). A movable component (372) is provided inside the housing (371). A connecting plate (373) is fixedly connected to the bottom of the movable component (372). A second rotating rod (374) is movably connected to the bottom of the connecting plate (373) via a bearing. A circumferentially distributed stirring rod (375) is fixedly connected to the surface of the second rotating rod (374). The top of the second rotating rod (374) extends to the top of the connecting plate (373) and is fixedly connected to a third gear (376). A connecting block (377) is fixedly connected to the top of the back side of the inner cavity of the housing (371). Both sides of the connecting block (377) are... A toothed plate (378) is fixedly connected to mesh with a third gear (376). The toothed plate (378) is fixedly connected to the inner wall of the housing (371) on the side away from the connecting block (377). A sliding groove (379) is fixedly connected to the opposite side of the connecting plate (373). An elliptical plate (3710) is provided in the inner cavity of the sliding groove (379). A third motor (3711) is fixedly connected to the front of the housing (371). The output end of the third motor (3711) passes through the inner cavity of the housing (371) and is fixedly connected to the elliptical plate (3710). A spring (3712) is fixedly connected to the back side of the connecting plate (373). The end of the spring (3712) away from the connecting plate (373) is fixedly connected to the inner wall of the housing (371).

5. The composite nitrogen-regulating and carbon-enhancing agent smelting and injection and nitrogen-carbon synergistic control device according to claim 4, characterized in that: The movable component (372) includes a slide rod, both ends of which are fixedly connected to the inner wall of the housing (371). A sliding sleeve is slidably connected to the surface of the slide rod, and the bottom of the sliding sleeve is fixedly connected to the top of the connecting plate (373).

6. The composite nitrogen-regulating and carbon-enhancing agent smelting and injection and nitrogen-carbon synergistic control device according to claim 4, characterized in that: The moving mechanism (400) includes a lifting component (410), which is fixed to one side of the top of the base plate (100). A rotating component (420) is fixedly connected to the top of the lifting component (410), and a connecting arm (430) is fixedly connected to the top of the rotating component (420). The other end of the connecting arm (430) is fixedly connected to the housing (371).

7. The composite nitrogen-regulating and carbon-enhancing agent smelting and injection and nitrogen-carbon synergistic control device according to claim 6, characterized in that: The lifting component (410) includes a first bracket (411), the bottom of the first bracket (411) is fixedly connected to the top of the base plate (100), and a hydraulic telescopic rod (412) is fixedly connected to the top of the inner cavity of the first bracket (411), with the output end of the hydraulic telescopic rod (412) extending through to the top of the first bracket (411).

8. The composite nitrogen-regulating and carbon-enhancing agent smelting and injection and nitrogen-carbon synergistic control device according to claim 7, characterized in that: The rotating component (420) includes a housing (421), the bottom of which is fixedly connected to the output end of a hydraulic telescopic rod (412). A second commutator (422) and a fourth motor (423) are fixedly connected in sequence to the bottom of the inner cavity of the housing (421). The output end of the fourth motor (423) is fixedly connected to the input end of the second commutator (422). The output end of the second commutator (422) passes through the housing (421) and is fixedly connected to the connecting arm (430).

9. The composite nitrogen-regulating and carbon-enhancing agent smelting and injection and nitrogen-carbon synergistic control device according to claim 1, characterized in that: The injection mechanism (500) includes a support frame (510), the bottom of which is fixedly connected to the top of the mixing tank (210), a lateral adjustment component (520) is fixedly connected to the bottom of the inner cavity of the support frame (510), a depth adjustment component (530) is fixedly connected to the bottom of the lateral adjustment component (520), and a conveying pump (540) is fixedly connected to the top of the mixing tank (210), the bottom of which is connected to the top of the mixing tank (210).

10. The composite nitrogen-regulating and carbon-enhancing agent smelting and injection and nitrogen-carbon synergistic control device according to claim 9, characterized in that: The lateral adjustment component (520) includes a protective shell (521). A threaded rod (522) is movably connected to the inner wall of the protective shell (521) via a bearing. A fifth motor (523) is fixedly connected to one side of the protective shell (521). The output end of the fifth motor (523) is fixedly connected to one end of the threaded rod (522). A movable sleeve (524) is threaded onto the surface of the threaded rod (522). A sliding rod is provided through the surface of the movable sleeve (524). Both ends of the sliding rod are connected to the protective shell (521). The inner wall is fixedly connected, the depth adjustment component (530) includes a Z-shaped plate (531), the movable sleeve (524) is fixed to one side of the top of the Z-shaped plate (531), the other side of the top of the Z-shaped plate (531) is fixedly connected to an electric telescopic rod (532), the output end of the electric telescopic rod (532) is fixedly connected to a connecting frame (533), the bottom of the connecting frame (533) is fixedly connected to an injection pipe (534), and the top of the delivery pump (540) is connected to the injection pipe (534) through a hose.

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