Feeding device of non-vacuum induction furnace

Abstract

The utility model relates to the technical field of auxiliary equipment of non-vacuum induction furnaces, in particular to a feeding device of a non-vacuum induction furnace. The non-vacuum induction furnace feeding device comprises a supporting frame, a rotating assembly, a lifting assembly and a feeding assembly. The supporting frame is arranged close to the non-vacuum induction furnace, the rotating assembly is arranged on the supporting frame, and the lifting assembly is arranged on the rotating assembly; the feeding assembly comprises a strip-shaped material guiding sliding groove and a feeding protective cover. One end of the material guide chute is connected with the telescopic end of the lifting assembly, and the other end of the material guide chute extends towards a furnace mouth of the non-vacuum induction furnace and is connected and communicated with the feeding protective cover; the discharging end of the feeding protective cover faces the furnace bottom of the non-vacuum induction furnace and can be close to or away from the furnace bottom. The feeding device of the non-vacuum induction furnace is ingenious in structural design, and can solve the problems that molten metal is easy to splash, a furnace lining is easy to damage and metal materials are not laid compactly while the feeding economy and flexibility of a crown block are kept, so that the intelligent production level of the non-vacuum induction furnace is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary equipment for non-vacuum induction furnaces, and more specifically, to a feeding device for a non-vacuum induction furnace. Background Technology

[0002] As a core piece of equipment in metal smelting, the safety and efficiency of the feeding process in non-vacuum induction furnaces directly affect production quality. Currently, the industrial sector mainly uses four feeding methods: overhead crane hoisting, vibrating feeder, screw conveyor, and furnace tilting.

[0003] Among them, the vibrating feeder can continuously feed materials, but it has problems such as high energy consumption and high noise; the screw conveyor can seal and prevent dust, but it has a high material residue rate and poor high temperature resistance; the furnace tilting scheme has no impact feeding, but the equipment modification cost is high and the smelting efficiency is low.

[0004] Overhead crane feeding systems remain dominant in small and medium-sized smelting enterprises due to their low investment, flexible operation, and fast feeding speed. Specifically, they offer outstanding economic benefits: the equipment cost is only one-third that of a vibratory feeding system, with low maintenance costs and no additional energy consumption; strong process compatibility: they can adapt to various forms of materials such as lumps, granules, and powders, and are compatible with different furnace types such as industrial frequency furnaces and medium frequency furnaces, allowing for alternating feeding of multiple furnaces; furthermore, they are highly convenient to operate: the entire process can be completed with a single button control, and the feeding rate adjustment range is large, making them suitable for special conditions such as emergency replenishment.

[0005] However, the following technical bottlenecks still exist in overhead crane feeding: (1) Risk of molten metal splashing: When the overhead crane feeds, the material enters the furnace in a free-fall manner. According to the momentum theorem, the impact force of the material when it comes into contact with the molten metal can reach 10-20 times its own weight, resulting in high-temperature molten metal splashing. The temperature of the splashed droplets is as high as 1500-1700℃, which may cause burns to operators, damage to equipment and pollution of the workshop environment; (2) Problem of furnace lining damage: The direct impact of blocky materials on the furnace wall will accelerate the wear of the furnace lining refractory material and reduce the service life of the equipment. Especially when smelting high melting point alloys, frequent impacts can easily lead to local peeling of the furnace lining, increasing maintenance costs; (3) Phenomenon of uneven material distribution: When the overhead crane feeds, uneven material distribution can easily lead to an imbalance in the temperature field of the molten pool, affecting smelting efficiency. When the particle size span of the material exceeds 1:5, the friction and interlocking forces between particles form an arch bridge, resulting in local accumulation, which requires manual intervention and affects the continuity of production.

[0006] Therefore, inventing a non-vacuum induction furnace feeding device that can utilize the advantages of overhead crane feeding while avoiding its disadvantages has become an urgent problem to be solved. Utility Model Content

[0007] The purpose of this utility model is to provide a non-vacuum induction furnace feeding device. This non-vacuum induction furnace feeding device has an ingenious structural design. By controlling the material falling trajectory and adjusting the discharge height according to the feeding sequence, it buffers the impact energy of the material on the furnace lining. While maintaining the economy and flexibility of overhead crane feeding, it solves the problems of easy splashing of molten metal, easy damage to the furnace lining, and loose metal material distribution, thereby improving the intelligent production level of non-vacuum induction furnaces.

[0008] To achieve the above objectives, the preferred solution adopted by this utility model is:

[0009] A non-vacuum induction furnace feeding device includes: a support frame, a rotating assembly, a lifting assembly, and a feeding assembly; the support frame is positioned close to the non-vacuum induction furnace, the rotating assembly is positioned on the support frame, and the lifting assembly is positioned on the rotating assembly; the axis of the non-vacuum induction furnace in its upright state is set to a preset direction, and the rotating assembly can rotate parallel to the preset direction as its centerline; the feeding assembly includes a strip-shaped guide chute and a feeding protective cover; the guide chute has a feeding slot for overhead crane feeding; one end of the guide chute is connected to the telescopic end of the lifting assembly, and the other end extends toward the furnace opening of the non-vacuum induction furnace and is connected and communicates with the feeding protective cover; the end of the feeding protective cover away from the guide chute communicates with the furnace interior of the non-vacuum induction furnace and can be close to or away from the furnace bottom of the non-vacuum induction furnace.

[0010] Furthermore, in a preferred embodiment of this utility model, the length direction of the guide chute forms an acute or obtuse angle with the preset direction.

[0011] Furthermore, in a preferred embodiment of this utility model, the support frame has a support platform, and the rotating component includes a motor and a rotating platform. The rotating platform is placed on the support platform, the motor is fixedly mounted on the support frame, and the rotating shaft of the motor passes through the support platform and is connected to the rotating platform. The centerline of the rotating shaft is parallel to a preset direction.

[0012] Furthermore, in a preferred embodiment of the present invention, the lifting assembly includes two cylinders; the end of the cylinder housing away from its telescopic rod is disposed on the rotary table, the end of the telescopic rod away from the housing is connected to the bottom of the guide chute, and the extension and retraction direction of the cylinder is set parallel to a preset direction.

[0013] Furthermore, in a preferred embodiment of this utility model, the centerlines of the two cylinders are located in the same plane as the preset direction.

[0014] The beneficial effects of the non-vacuum induction furnace feeding device provided by this utility model are:

[0015] The non-vacuum induction furnace feeding device provided by this utility model includes a support frame, a rotating assembly, a lifting assembly, and a feeding assembly. Based on the structural design of each of the support frame, rotating assembly, lifting assembly, and feeding assembly, as well as the design of their interconnections, the resulting non-vacuum induction furnace feeding device controls the material's falling trajectory and adjusts the discharge height according to the feeding sequence, thereby buffering the impact energy of the material on the furnace lining. While maintaining the economy and flexibility of overhead crane feeding, it solves the problems of easy splashing of molten metal, easy damage to the furnace lining, and insufficient compaction of the metal material, thus improving the intelligent production level of the non-vacuum induction furnace. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A side view of the non-vacuum induction furnace feeding device provided in the first use state according to an embodiment of the present utility model;

[0018] Figure 2 A side view of the non-vacuum induction furnace feeding device provided in the second use state according to an embodiment of the present utility model;

[0019] Figure 3 A side view of the non-vacuum induction furnace feeding device provided in the third usage state according to an embodiment of the present utility model;

[0020] Icons: 10-Non-vacuum induction furnace feeding device, 20-Non-vacuum induction furnace, 100-Support frame, 200-Lifting assembly, 300-Feeding assembly, 400-Rotating assembly, 310-Guide chute, 320-Feeding protective cover, 311-Feeding slot, 21-Furnace opening, 22-Furnace bottom, 210-Cylinder, 110-Support platform, 410-Motor, 420-Rotating table. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0023] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0024] Example 1

[0025] The following is in conjunction with the appendix Figure 1-3 The present invention will be further described as follows:

[0026] This utility model provides a non-vacuum induction furnace feeding device 10. Please refer to [link / reference]. Figure 1-3 The non-vacuum induction furnace feeding device 10 includes: a support frame 100, a rotating component 400, a lifting component 200, and a feeding component 300.

[0027] The support frame 100 is located close to the non-vacuum induction furnace 20, the rotating component 400 is located on the support frame 100, and the lifting component 200 is located on the rotating component 400.

[0028] To facilitate the description of the positional relationship of each component, the axis direction of the non-vacuum induction furnace 20 in its untilted state is set to a preset direction.

[0029] In this embodiment, the feeding assembly 300 includes a strip-shaped guide chute 310 and a feeding protective cover 320. The guide chute 310 has a feeding slot 311 for feeding by the overhead crane. One end of the guide chute 310 is connected to the telescopic end of the lifting assembly 200, and the other end extends toward the furnace opening 21 of the non-vacuum induction furnace 20 and is connected and communicates with the feeding protective cover 320. The length direction of the guide chute 310 forms an acute or obtuse angle with a preset direction. The end of the feeding protective cover 320 away from the guide chute 310 communicates with the interior of the non-vacuum induction furnace 20 and can be close to or away from the furnace bottom 22 of the non-vacuum induction furnace 20.

[0030] In this embodiment, the support frame 100 has a support platform 110. The rotating assembly 400 includes a motor 410 and a rotating platform 420. The rotating platform 420 is placed on the support platform 110, and the motor 410 is fixedly mounted on the support frame 100. The rotation shaft of the motor 410 passes through the support platform 110 and is connected to the rotating platform 420. The axis of rotation is parallel to a preset direction.

[0031] In this embodiment, the lifting assembly 200 includes two cylinders 210. The end of the cylinder 210 housing away from its telescopic rod is disposed on the rotary table 420, and the end of the telescopic rod away from the housing is connected to the bottom of the guide chute 310. The telescopic direction of the cylinders 210 is parallel to a preset direction. In this embodiment, the centerlines of the two cylinders 210 are located in the same plane as the preset direction.

[0032] The non-vacuum induction furnace feeding device 10 provided in this embodiment works as follows:

[0033] When it is necessary to add material into the non-vacuum induction furnace 20, two cylinders 210 are opened simultaneously. The cylinders 210 contract and drive the material guide chute 310 and the feeding protective cover 320 to move downward. When the feeding protective cover 320 enters the non-vacuum induction furnace 20 and approaches the furnace bottom 22 to a certain position, the cylinders 210 are closed. At this time, the crane adds the prepared and metered fusible furnace material suitable for the bottom layer to the feeding slot 311 of the material guide chute 310. The furnace material slides down the material guide chute 310 under its own gravity to the feeding protective cover 320, and then falls freely into the furnace bottom 22 to spread the material.

[0034] After the material is laid, the non-vacuum induction furnace 20 can be turned on to melt the metal, or the melting can be carried out after the intermediate layer is laid.

[0035] Then, cylinder 210 is opened again. Cylinder 210 extends and drives the material guide chute 310 and the feeding protective cover 320 to move upward. When the feeding protective cover 320 moves away from the furnace bottom 22 to a certain position, cylinder 210 is closed. The crane adds the prepared and metered refractory furnace charge suitable for the middle layer to the feeding slot 311 of the material guide chute 310. The furnace charge slides down the material guide chute 310 under its own gravity to the feeding protective cover 320, and then falls freely into the furnace and is laid on the bottom layer.

[0036] Then, cylinder 210 is opened again, and cylinder 210 extends, driving the guide chute 310 and the feed shield 320 to continue moving upward. When the discharge end of the feed shield 320 approaches the furnace opening 21 to a certain position, cylinder 210 is closed. The crane adds the prepared and metered ordinary furnace material suitable for the upper layer to the feeding slot 311 of the guide chute 310. The furnace material slides down the guide chute 310 under its own gravity to the feed shield 320, and then enters the furnace for melting through free fall.

[0037] Then turn on the motor 410. The motor 410 drives the rotary table 420, which in turn drives the lifting component 200 and the feeding component 300 to rotate together to a certain angle until the furnace opening 21 of the non-vacuum induction furnace 20 is completely unobstructed. At this time, other operations such as adding a furnace cover to the furnace opening 21 can be performed.

[0038] It should be noted that all furnace materials must undergo pretreatment, including crushing, drying, and degreasing.

[0039] In summary, the non-vacuum induction furnace feeding device 10 provided in this embodiment has an ingenious structural design. By controlling the material falling trajectory and adjusting the discharge height according to the feeding sequence, it buffers the impact energy of the material on the furnace lining. While maintaining the economy and flexibility of overhead crane feeding, it solves the problems of easy splashing of molten metal, easy damage to the furnace lining, and loose metal material distribution, thereby improving the intelligent production level of the non-vacuum induction furnace 20.

[0040] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A non-vacuum induction furnace charging device, characterized by comprising: include: Support frame, rotating assembly, lifting assembly, and feeding assembly; The support frame is located close to the non-vacuum induction furnace, the rotating component is located on the support frame, and the lifting component is located on the rotating component; The axis of the non-vacuum induction furnace in its untilted state is set as a preset direction, and the rotating component can rotate parallel to the preset direction as the center line; The feeding assembly includes a strip-shaped guide chute and a feeding protective cover; the guide chute has a feeding slot for feeding the overhead crane; One end of the material guide chute is connected to the telescopic end of the lifting assembly, and the other end extends toward the furnace opening of the non-vacuum induction furnace and is connected and communicates with the feeding protective cover; the end of the feeding protective cover away from the material guide chute is connected to the furnace interior of the non-vacuum induction furnace and can be close to or away from the furnace bottom of the non-vacuum induction furnace.

2. The non-vacuum induction furnace charging apparatus according to claim 1, wherein The length direction of the material guide chute forms an acute or obtuse angle with the preset direction.

3. The non-vacuum induction furnace charging apparatus according to claim 2, wherein The support frame has a support platform, and the rotating assembly includes a motor and a rotating table. The rotating table is placed on the support platform, and the motor is fixedly mounted on the support frame. The rotating shaft of the motor passes through the support platform and is connected to the rotating table. The centerline of the rotating shaft is parallel to the preset direction.

4. The non-vacuum induction furnace charging apparatus according to claim 3, wherein The lifting assembly includes two cylinders; the end of the cylinder housing away from its telescopic rod is disposed on the rotary table, and the end of the telescopic rod away from the housing is connected to the bottom of the guide chute, and the extension and retraction direction of the cylinder is set parallel to the preset direction.

5. The non-vacuum induction furnace charging apparatus according to claim 4, wherein The centerlines of the two cylinders are located in the same plane as the preset direction.

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