Automatic feeding device of intermediate frequency furnace

Abstract

The utility model provides an automatic feeding device of an intermediate frequency furnace, which belongs to the technical field of automatic feeding of intermediate frequency furnaces and comprises a screening box, a crushing mechanism, a screening mechanism, a lifting mechanism, a recycling box, the intermediate frequency furnace, a discharging plate and an automatic conveying mechanism. The crushing mechanism is mounted in the screening box; the screening mechanism is obliquely arranged in the screening box and located below the crushing mechanism, a recycling opening is formed in the side wall of the screening box, and the screening mechanism is opposite to the recycling opening in position. The lifting mechanism is arranged on one side of the screening box; the automatic conveying mechanism is arranged on one side of the screening box, and the two ends of the automatic conveying mechanism are opposite to the discharging opening and the feeding opening of the intermediate frequency furnace respectively. According to the device, through the linkage design of the crushing mechanism, the screening mechanism and the automatic conveying mechanism, large steel materials which are not completely crushed are prevented from entering the intermediate frequency furnace, it is guaranteed that the crushed and screened steel materials are stably and continuously conveyed into the intermediate frequency furnace, and the situation that feeding is interrupted is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of automatic feeding technology for medium frequency furnaces, and specifically relates to an automatic feeding device for medium frequency furnaces. Background Technology

[0002] Currently, when using an induction furnace for smelting, the furnace requires a continuous and stable supply of materials to maintain its efficient operation. If the supply is interrupted, the metal level in the furnace will drop, leading to a longer smelting cycle and a decrease in overall production efficiency. Furthermore, frequent interruptions in feeding will cause intermittent smelting, resulting in a decrease in energy utilization and an increase in energy consumption.

[0003] Patent application number 202321258495.9 proposes a conveying device for preheating an intermediate frequency furnace. Through the coordinated arrangement of a support plate, a conveying and crushing mechanism, a motor, and gears, it enables workers to crush scrap steel raw materials before feeding them into the intermediate frequency furnace body. This effectively avoids the situation where the intermediate frequency furnace body increases the processing difficulty of scrap steel raw materials due to the direct feeding of larger pieces of scrap steel into the intermediate frequency furnace without crushing them.

[0004] However, in the existing technology, it is impossible to screen out large pieces of steel that are not completely crushed. These large pieces of steel that are not completely crushed may still be sent into the medium frequency furnace, thus affecting the smelting effect. Moreover, during the smelting process in the medium frequency furnace, it is difficult to ensure that the crushed steel enters the medium frequency furnace stably and continuously, which can easily lead to interruption of the material supply. Utility Model Content

[0005] Based on the above-mentioned technical problems, the purpose of this utility model is to provide an automatic feeding device for medium-frequency furnaces. This device, through the linkage design of the crushing mechanism, screening mechanism and automatic conveying mechanism, avoids large pieces of steel that are not completely crushed from entering the medium-frequency furnace, and ensures that the crushed and screened steel is stably and continuously conveyed into the medium-frequency furnace, avoiding the interruption of the material supply.

[0006] The specific technical solution is as follows:

[0007] An automatic feeding device for a medium-frequency furnace includes: a screening box, a crushing mechanism, a screening mechanism, a lifting mechanism, a recovery box, a medium-frequency furnace, a discharge plate, and an automatic conveying mechanism; the crushing mechanism is installed inside the screening box; the screening mechanism is inclinedly arranged inside the screening box and located below the crushing mechanism, and a recovery port is provided on the side wall of the screening box, with the screening mechanism and the recovery port facing each other; the lifting mechanism is arranged on one side of the screening box, with the recovery port facing the feed inlet of the lifting mechanism, and the discharge outlet of the lifting mechanism facing the recovery box; the discharge plate is inclinedly arranged inside the screening box and located below the screening mechanism, with the discharge plate facing the discharge outlet of the screening box; the automatic conveying mechanism is arranged on one side of the screening box, with both ends of the automatic conveying mechanism facing the discharge outlet and the feeding port of the medium-frequency furnace, respectively.

[0008] In addition, the automatic feeding device for a medium-frequency furnace in the above-mentioned technical solution provided by this utility model may also have the following additional technical features:

[0009] In the above technical solution, the crushing mechanism includes: a motor, a driving gear, a driven gear, a driving crushing roller, and a driven crushing roller. The driving crushing roller and the driven crushing roller are both installed inside the screen box. The driving gear and the driven gear are respectively sleeved on the outside of the driving crushing roller and the driven crushing roller, and the driving gear and the driven gear mesh with each other. The motor is fixed on one side of the screen box, and the output end of the motor is connected to the driving crushing roller.

[0010] In the above technical solution, the screening mechanism includes: a support assembly, a vibrating screen plate, and a vibrating motor; the support assembly includes a support block and a spring, the support block is set inside the screening box, and the two ends of the spring are respectively connected to the support block and the vibrating screen plate; the vibrating screen plate is inclinedly set inside the screening box, and the vibrating screen plate is opposite to the position of the recovery port; the vibrating motor is installed at the bottom of the vibrating screen plate.

[0011] In the above technical solution, the automatic feeding mechanism includes: a mounting base, a driving roller, a driven roller, a feeding belt, and a transmission mechanism; the mounting base is located on one side of the screen box, and the two ends of the mounting base are respectively opposite to the discharge port and the feeding port of the medium-frequency furnace; the driving roller and the driven roller are respectively located on both sides of the mounting base, and the feeding belt is simultaneously wrapped around the outside of the driving roller and the driven roller; the transmission mechanism includes a feeding motor and a reducer, the output end of the feeding motor is connected to the input end of the reducer, and the output end of the reducer is connected to the driving roller.

[0012] The above technical solution also includes: a hydraulic cylinder, a pusher plate, a clearance groove, and a connecting block; the hydraulic cylinder is located on one side of the screen box; both ends of the connecting block are connected to the telescopic end of the hydraulic cylinder and the pusher plate, respectively, and the pusher plate is embedded in the screen box; the clearance groove is located on one side of the screen box, and the connecting block is embedded in the clearance groove.

[0013] In the above technical solution, a guide plate is provided on the discharge plate, and the guide plate is positioned opposite to the discharge port.

[0014] In the above technical solution, the feeding port of the medium frequency furnace is equipped with an anti-splash plate.

[0015] The automatic feeding device for medium-frequency furnace of this utility model has the following advantages compared with the prior art:

[0016] 1. Through the linkage design of the crushing mechanism, screening mechanism and automatic conveying mechanism, the steel crushing, screening and conveying process is fully automated. Furthermore, by combining the screening mechanism with the lifting mechanism, large pieces of steel that are not completely crushed are automatically screened out and fall into the recycling bin for subsequent secondary processing.

[0017] 2. By crushing and screening the steel, large pieces of steel are prevented from entering the induction furnace, which would cause uneven heat absorption during induction furnace melting, making it difficult to refine into molten steel and thus affecting melting efficiency.

[0018] 3. The screened steel material is stably transported into the intermediate frequency furnace through an automatic feeding mechanism to ensure a continuous supply of steel material to the furnace, thereby guaranteeing the stability of the furnace's operation. Attached Figure Description

[0019] Figure 1 This is a front view of an automatic feeding device for a medium-frequency furnace according to the present invention;

[0020] Figure 2 This is a cross-sectional structural diagram of an automatic feeding device for a medium-frequency furnace according to the present invention;

[0021] Figure 3 This is a schematic diagram of the rear structure of an automatic feeding device for a medium-frequency furnace according to the present invention;

[0022] in, Figures 1 to 3 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0023] 10 Screening box, 11 Recycling box, 12 Medium frequency furnace, 13 Discharge plate, 14 Recycling port, 15 Discharge port, 16 Lifting motor, 17 Main drive sprocket, 18 Driven drive sprocket, 19 Conveyor chain, 20 Hopper, 21 Motor, 22 Drive gear, 23 Driven gear, 24 Driven crushing roller, 25 Driven crushing roller, 26 Vibrating screen plate, 27 Vibrating motor, 28 Support block, 29 Spring, 30 Mounting base, 31 Conveyor belt, 32 Conveyor motor, 33 Reducer, 34 Hydraulic cylinder, 35 Pusher plate, 36 Clearance groove, 37 Connecting block, 38 Guide plate, 39 Anti-splash plate. Detailed Implementation

[0024] The following are specific implementation cases and appendices. Figure 1-3 The present invention will be further described below, but the present invention is not limited to these embodiments.

[0025] An automatic feeding device for a medium-frequency furnace, such as Figure 1-3As shown, the system includes: a screening box 10, a crushing mechanism, a screening mechanism, a lifting mechanism, a recovery box 11, an intermediate frequency furnace 12, a discharge plate 13, and an automatic conveying mechanism; the crushing mechanism is installed inside the screening box 10; the screening mechanism is inclinedly arranged inside the screening box 10 and located below the crushing mechanism, and the side wall of the screening box 10 is provided with a recovery port 14, with the screening mechanism and the recovery port 14 being opposite each other; the lifting mechanism is arranged on one side of the screening box 10, with the recovery port 14 being opposite to the feed port of the lifting mechanism, and the discharge port of the lifting mechanism being opposite to the recovery box 11; the discharge plate 13 is inclinedly arranged inside the screening box 10 and located below the screening mechanism, with the discharge plate 13 being opposite to the discharge port 15 of the screening box 10; the automatic conveying mechanism is arranged on one side of the screening box 10, with both ends of the automatic conveying mechanism being opposite to the discharge port 15 and the feeding port of the intermediate frequency furnace 12, respectively.

[0026] Using the above structure, the steel material is crushed by the crushing mechanism, and the crushed steel material falls onto the screening mechanism for vibrating screening. The screened steel material falls onto the discharge plate 13 and moves along the discharge plate 13 to the automatic conveying mechanism. The automatic conveying mechanism drives the steel material to enter the medium frequency furnace 12 stably and continuously, so as to realize the purpose of refining the steel material into molten steel.

[0027] Large, incompletely crushed steel pieces screened out by the screening mechanism enter the lifting mechanism and fall into the recycling bin 11 for recycling, so that they can be processed in the future.

[0028] Through the coordinated design of the crushing mechanism, screening mechanism and automatic conveying mechanism, the entire process of steel crushing, screening and conveying is fully automated.

[0029] By crushing and screening the steel, large pieces of steel are prevented from entering the induction furnace 12, which would cause uneven absorption of the steel during smelting and make it difficult to refine into molten steel, thus affecting the smelting efficiency.

[0030] Specifically, the lifting mechanism is a bucket elevator, which includes a lifting motor 16, a main drive sprocket 17, a driven sprocket 18, a conveyor chain 19, and buckets 20. The lifting motor 16 provides power to the main drive sprocket 17, thereby driving the conveyor chain 19 along the main drive sprocket 17 and the driven sprocket 18, which in turn moves the buckets 20. By allowing the incompletely crushed steel material to fall into the buckets 20 of the bucket elevator, and through the drive of the conveyor chain 19 by the lifting motor 16, the buckets 20 move upward, and the recovered steel material is poured out through the discharge port into the recovery box 11 for recycling.

[0031] In an embodiment of this utility model, the crushing mechanism includes: a motor 21, a driving gear 22, a driven gear 23, a driving crushing roller 24, and a driven crushing roller 25. The driving crushing roller 24 and the driven crushing roller 25 are both disposed inside the screen box 10. The driving gear 22 and the driven gear 23 are respectively sleeved on the outside of the driving crushing roller 24 and the driven crushing roller 25, and the driving gear 22 and the driven gear 23 mesh with each other. The motor 21 is fixed on one side of the screen box 10, and the output end of the motor 21 is connected to the driving crushing roller 24.

[0032] The motor 21 drives the active crushing roller 24 and the active gear 22 to rotate. The active gear 22 meshes with the driven gear 23 to drive the driven crushing roller 25 to rotate, thereby achieving the purpose of crushing steel through the active crushing roller and the driven crushing roller 25.

[0033] In an embodiment of this utility model, the screening mechanism includes: a support assembly, a vibrating screen plate 26, and a vibrating motor 27; the support assembly includes a support block 28 and a spring 29, the support block 28 is disposed in the screening box 10, and the two ends of the spring 29 are respectively connected to the support block 28 and the vibrating screen plate 26; the vibrating screen plate 26 is inclinedly disposed in the screening box 10, and the vibrating screen plate 26 is opposite to the position of the recovery port 14; the vibrating motor 27 is installed at the bottom of the vibrating screen plate 26.

[0034] The vibrating motor 27, the vibrating screen plate 26, and the spring 29 work together to vibrate the vibrating screen plate 26 and screen the crushed steel material. The qualified steel material falls onto the discharge plate 13 through the screen holes of the vibrating screen plate 26, while the unqualified steel material moves along the vibrating screen plate 26 to the recovery port 14 and enters the bucket elevator.

[0035] Specifically, qualified steel is steel with a volume smaller than the sieve aperture, while unqualified steel is steel with a volume larger than the sieve aperture.

[0036] In an embodiment of this utility model, the automatic feeding mechanism includes: a mounting base 30, a drive roller, a driven roller, a feeding belt 31, and a transmission mechanism; the mounting base 30 is disposed on one side of the screening box 10, and the two ends of the mounting base 30 are respectively opposite to the discharge port 15 and the feeding port of the medium frequency furnace 12; the drive roller and the driven roller are respectively disposed on both sides of the mounting base 30, and the feeding belt 31 is simultaneously wound around the outside of the drive roller and the driven roller; the transmission mechanism includes a feeding motor 32 and a reducer 33, the output end of the feeding motor 32 is connected to the input end of the reducer 33, and the output end of the reducer 33 is connected to the drive roller.

[0037] The conveying motor 32 drives the active roller shaft to rotate, causing the conveying belt 31 to move along the active roller shaft and the driven roller shaft, thereby moving the steel material on the conveying belt 31 to the feeding port of the medium frequency furnace 12, thus achieving the purpose of stable feeding.

[0038] Specifically, the automatic feeding design can prevent workers from being scalded by the high-temperature hot air at the feeding port of the medium-frequency furnace 12.

[0039] In embodiments of this utility model, it further includes: a hydraulic cylinder 34, a pusher plate 35, a clearance groove 36, and a connecting block 37; the hydraulic cylinder 34 is disposed on one side of the screening box 10; the two ends of the connecting block 37 are respectively connected to the telescopic end of the hydraulic cylinder 34 and the pusher plate 35, and the pusher plate 35 is embedded in the screening box 10; the clearance groove 36 is disposed on one side of the screening box 10, and the connecting block 37 is embedded in the clearance groove 36.

[0040] The hydraulic cylinder 34 extends and retracts, driving the pusher plate 35 to move, pushing the steel material remaining on the discharge plate 13 to the discharge port 15 for discharge, thus preventing steel material from remaining on the discharge plate 13 and being difficult to discharge. When the hydraulic cylinder 34 drives the pusher plate 35 to move, the clearance groove 36 plays a role in clearance, ensuring the smooth movement of the connecting block 37.

[0041] In an embodiment of this utility model, a guide plate 38 is provided on the discharge plate 13, and the guide plate 38 is positioned opposite to the discharge port 15.

[0042] By providing a guide plate 38 on the discharge plate 13, the steel material is guided and discharged smoothly through the discharge port 15.

[0043] In an embodiment of this utility model, an anti-splash plate 39 is provided at the feeding port of the medium frequency furnace 12.

[0044] By setting up anti-splash plate 39, the steel material is prevented from splashing outside when it is conveyed to the feeding port of the intermediate frequency furnace 12.

[0045] In the description of this utility model, the term "multiple" refers to two or more. Unless otherwise explicitly defined, the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. The terms "connection," "installation," "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0046] In the description of this utility model, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this utility model, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0047] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An automatic feeding device for a medium-frequency furnace, characterized in that, include: The system comprises a screening box, a crushing mechanism, a screening mechanism, a lifting mechanism, a recovery box, an intermediate frequency furnace, a discharge plate, and an automatic conveying mechanism. The crushing mechanism is installed inside the screening box. The screening mechanism is inclinedly arranged inside the screening box and located below the crushing mechanism. A recovery port is provided on the side wall of the screening box, and the screening mechanism is positioned opposite the recovery port. The lifting mechanism is located on one side of the screening box, with the recovery port opposite the feed inlet of the lifting mechanism and the discharge outlet of the lifting mechanism opposite the recovery box. The discharge plate is inclinedly arranged inside the screening box and located below the screening mechanism, and the discharge plate is opposite the discharge outlet of the screening box. The automatic conveying mechanism is located on one side of the screening box, with its two ends opposite the discharge outlet and the feed inlet of the intermediate frequency furnace, respectively.

2. The automatic feeding device for a medium-frequency furnace according to claim 1, characterized in that, The crushing mechanism includes: a motor, a drive gear, a driven gear, a drive crushing roller, and a driven crushing roller. The drive crushing roller and the driven crushing roller are both disposed inside the screen box. The drive gear and the driven gear are respectively sleeved on the outside of the drive crushing roller and the driven crushing roller, and the drive gear and the driven gear mesh with each other. The motor is fixed to one side of the screen box, and the output end of the motor is connected to the drive crushing roller.

3. The automatic feeding device for intermediate frequency furnace according to claim 1, characterized in that, The screening mechanism includes: a support assembly, a vibrating screen plate, and a vibrating motor; the support assembly includes a support block and a spring, the support block is disposed inside the screening box, and the two ends of the spring are respectively connected to the support block and the vibrating screen plate; the vibrating screen plate is inclinedly disposed inside the screening box, and the vibrating screen plate is opposite to the position of the recycling port; the vibrating motor is installed at the bottom of the vibrating screen plate.

4. The automatic feeding device for intermediate frequency furnace according to claim 1, characterized in that, The automatic feeding mechanism includes: a mounting base, a drive roller, a driven roller, a feeding belt, and a transmission mechanism; the mounting base is located on one side of the screen box, and both ends of the mounting base are respectively opposite to the discharge port and the feeding port of the medium-frequency furnace; the drive roller and the driven roller are respectively located on both sides of the mounting base, and the feeding belt is simultaneously wound around the outside of the drive roller and the driven roller; the transmission mechanism includes a feeding motor and a reducer, the output end of the feeding motor is connected to the input end of the reducer, and the output end of the reducer is connected to the drive roller.

5. The automatic feeding device for intermediate frequency furnace according to claim 1, characterized in that, Also includes: The screen box includes a hydraulic cylinder, a pusher plate, a clearance groove, and a connecting block. The hydraulic cylinder is located on one side of the screen box. The two ends of the connecting block are connected to the telescopic end of the hydraulic cylinder and the pusher plate, respectively, and the pusher plate is embedded in the screen box. The clearance groove is located on one side of the screen box, and the connecting block is embedded in the clearance groove.

6. The automatic feeding device for intermediate frequency furnace according to claim 1, characterized in that, The discharge plate is provided with a guide plate, and the guide plate is positioned opposite to the discharge port.

7. The automatic feeding device for intermediate frequency furnace according to claim 1, characterized in that, The feeding port of the medium-frequency furnace is equipped with a splash guard.

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