Feeding device of induction furnace

Abstract

The utility model provides a feeding device of an induction furnace, which relates to the technical field of induction furnaces and comprises a furnace cover used for covering a furnace mouth of the induction furnace, a material storage cavity is arranged above the furnace cover, furnace charge is placed in the material storage cavity, a feeding pipeline is arranged at the bottom of the material storage cavity, and the feeding pipeline penetrates through the furnace cover to be communicated with the inside of the induction furnace; a material distributing wheel is arranged in the feeding pipeline, the material distributing wheel is driven by a motor, the axis of the material distributing wheel is horizontally arranged, and a plurality of grooves are formed in the wheel wall of the material distributing wheel, so that furnace charge enters the grooves, and the furnace charge falls into the induction furnace along the feeding pipeline through rotation of the material distributing wheel. Furnace charge falls into the induction furnace along the feeding pipeline, in the feeding process, the feeding speed can be controlled through the rotating speed of the material distributing wheel, accurate control over the single-batch discharging amount of the furnace charge and intermittent discharging are achieved, danger caused by manual feeding is avoided, the furnace opening of the induction furnace is covered with the furnace cover, and the furnace charge smelted in the induction furnace is prevented from being splashed out.

Description

Technical Field

[0001] The utility model relates to the technical field of induction furnaces, and more specifically, to a charging device for an induction furnace. Background Art

[0002] An induction furnace is a device that uses electromagnetic induction to generate eddy currents in a metal conductor to heat the furnace charge for melting. Its working principle is to place the metal furnace charge into a crucible placed in a coil. When the coil is connected to an alternating current power supply, an alternating magnetic field is generated in the middle of the coil. At this time, an induced electromotive force is generated in the furnace charge, and the metal furnace charge itself forms a closed loop. Therefore, an induced current, that is, an eddy current, is generated in the furnace charge, and the furnace charge is heated and melted through the eddy current.

[0003] In the prior art, after melting to a preset temperature, it is necessary to manually add the metal furnace charge to the induction furnace multiple times. The air temperature near the induction furnace is too high, and manual addition of the furnace charge may cause injury to the operating workers. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a charging device for an induction furnace, which can automatically add the furnace charge multiple times with the furnace cover closed, aiming at the problems in the above-mentioned prior art.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] The utility model provides a charging device for an induction furnace, which includes a furnace cover used to cover the furnace opening of the induction furnace. A storage cavity is arranged above the furnace cover, and the storage cavity is used to place the furnace charge. A feeding pipeline is arranged at the bottom of the storage cavity, and the feeding pipeline passes through the furnace cover to communicate with the inside of the induction furnace; a distributing wheel is arranged in the feeding pipeline, and the distributing wheel is driven by a motor. The axis of the distributing wheel is horizontally arranged, and a plurality of grooves are arranged on the wheel wall of the distributing wheel so that the furnace charge enters the grooves, and through the rotation of the distributing wheel, the furnace charge falls along the feeding pipeline into the induction furnace.

[0007] Optionally, a plurality of support rods are arranged between the storage cavity and the furnace cover. The two ends of the support rods are respectively fixed to the storage cavity and the furnace cover by screws; the plurality of support rods are arranged along the edge of the lower surface of the storage cavity.

[0008] Optionally, elastic devices are respectively arranged on both sides of the feeding pipeline relative to the distributing wheel. Springs are arranged in the elastic devices so that the end faces of the two elastic devices respectively abut against both sides of the distributing wheel, and the end faces of the elastic devices are concave surfaces that fit the contour of the distributing wheel.

[0009] Optionally, first support frames are respectively connected to both sides of the induction furnace, second support frames are respectively connected to both sides of the storage cavity, and the second support frames are respectively fixed to the first support frames by hydraulic rods to change the height of the storage cavity through the telescopic movement of the hydraulic rods.

[0010] Optionally, the lower plane inside the material storage cavity is inclined towards the feeding pipe; the feeding pipe is arranged at the middle position of the material storage cavity.

[0011] Optionally, two grooves are formed on the wheel wall of the material distributing wheel, and the grooves are semi-circular.

[0012] Optionally, an observation port is arranged on the furnace cover, and a transparent glass is arranged on the observation port.

[0013] The beneficial effects of the present utility model include: The present utility model provides a feeding device for an induction furnace, which includes a furnace cover for covering the furnace opening of the induction furnace. A material storage cavity is arranged above the furnace cover, and the material storage cavity is used for placing furnace charge. A feeding pipe is arranged at the bottom of the material storage cavity, and the feeding pipe passes through the furnace cover to communicate with the inside of the induction furnace; a material distributing wheel is arranged in the feeding pipe, and the material distributing wheel is driven by a motor. The axis of the material distributing wheel is horizontally arranged, and a plurality of grooves are arranged on the wheel wall of the material distributing wheel, so that the furnace charge enters the grooves, and through the rotation of the material distributing wheel, the furnace charge falls along the feeding pipe into the induction furnace. The present utility model places the furnace charge in the material storage cavity, drives the material distributing wheel by a motor, and can control the rotation speed of the material distributing wheel, so as to measure the number of times of rotation and feeding of the grooves through a counter, realize the precise control of the single-batch feeding amount of the furnace charge, and intermittent feeding. The furnace charge falls along the feeding pipe into the induction furnace. During the feeding process, the present application can automatically feed, and can control the feeding speed through the rotation speed of the material distributing wheel, avoid the danger caused by manual feeding, and the furnace cover covers the furnace opening of the induction furnace to prevent the furnace charge melted in the induction furnace from splashing out. Description of the Drawings

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0015] Figure 1 One of the structural schematic diagrams of a feeding device for an induction furnace provided by an embodiment of the present application;

[0016] Figure 2 Two of the structural schematic diagrams of a feeding device for an induction furnace provided by an embodiment of the present application;

[0017] Figure 3 Three of the structural schematic diagrams of a feeding device for an induction furnace provided by an embodiment of the present application.

[0018] Icon: 10 - storage cavity; 11 - support rod; 12 - feed pipe; 13 - elastic device; 14 - hydraulic rod; 15 - second support frame; 16 - material distribution wheel; 161 - groove; 20 - induction furnace; 21 - drainage port; 22 - first support frame; 23 - rotating shaft; 30 - furnace cover. Detailed implementation manners

[0019] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. The components of the embodiments of the present application usually described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed present application, but merely represents selected embodiments of the present application. It should be noted that, without conflict, the various features in the embodiments of the present application can be combined with each other, and the combined embodiments are still within the protection scope of the present application.

[0020] In the existing induction furnace, it is necessary to manually add metal charge into the induction furnace multiple times during the smelting process. The air temperature near the induction furnace is too high. By manually adding charge, it may cause injury to the operating workers. To solve the above problems, the embodiments of the present application provide a feeding device for an induction furnace. A storage cavity 10 is arranged on the furnace cover 30 of the induction furnace 20, and the storage cavity 10 and the induction furnace 20 are connected through a feed pipe 12 to achieve automatic feeding and avoid injury to the staff.

[0021] As Figure 1 shown, the embodiments of the present application provide a feeding device for an induction furnace, including a furnace cover 30 for covering the furnace opening of the induction furnace 20. A storage cavity 10 is arranged above the furnace cover 30. The storage cavity 10 is used for placing charge. A feed pipe 12 is arranged at the bottom of the storage cavity 10. The feed pipe 12 passes through the furnace cover 30 to communicate with the inside of the induction furnace 20; a material distribution wheel 16 is arranged in the feed pipe 12. The material distribution wheel 16 is driven by a motor. The axis of the material distribution wheel 16 is horizontally arranged. A plurality of grooves 161 are arranged on the wheel wall of the material distribution wheel 16 so that the charge enters the grooves 161, and through the rotation of the material distribution wheel 16, the charge falls along the feed pipe 12 into the induction furnace 20. The embodiments of the present application can control the rotation speed of the material distribution wheel to accurately control the single-batch feeding amount of the charge by counting the number of times the grooves 161 rotate and discharge the material, and achieve intermittent feeding.

[0022] Figure 3The structural schematic diagram of the material storage cavity 10 is shown. The furnace charge is arranged in the material storage cavity 10, contacts the material distributing wheel 16 in the feeding pipe 12 under the action of gravity, and is stored in the groove 161 of the material distributing wheel 16. During the rotation of the material distributing wheel 16, the furnace charge in the groove 161 is transferred into the feeding pipe 12 and falls, and is melted in the induction furnace 20. During this process, automatic feeding can be realized, avoiding injuries to workers during manual feeding. Moreover, in the embodiment of the present application, a furnace cover 30 is provided to block the furnace opening of the material distributing wheel 16, preventing the splashing of the melted furnace charge during the melting process and ensuring the safety of melting.

[0023] Specifically, a plurality of support rods 11 are arranged between the material storage cavity 10 and the furnace cover 30. The two ends of the support rods 11 are respectively fixed to the material storage cavity 10 and the furnace cover 30 by screws; the plurality of support rods 11 are arranged along the edge of the lower surface of the material storage cavity 10. In the embodiment of the present application, by arranging the support rods 11, a distance is formed between the material storage cavity 10 and the furnace cover 30, which is convenient for arranging a multi-functional display device on the furnace cover 30 to monitor the melting condition of the induction furnace 20 in real time, and the material storage cavity 10 is fixed on the furnace cover 30 to prevent the separation and dropping of the material storage cavity 10 and the furnace cover 30.

[0024] In an embodiment of the present application, elastic devices 13 are respectively arranged on both sides of the feeding pipe 12 opposite to the material distributing wheel 16. Springs are arranged inside the elastic devices 13 so that the end faces of the two elastic devices 13 respectively abut against both sides of the material distributing wheel 16. The end faces of the elastic devices 13 are concave surfaces that fit the contour of the material distributing wheel 16. During the process of the material distributing wheel 16 rotating for feeding, there may be gaps between the material distributing wheel 16 and both sides of the feeding pipe 12, resulting in the furnace charge falling from the material storage cavity 10 after stopping feeding, affecting the melting of the induction furnace 20. In the embodiment of the present application, elastic devices 13 are arranged on both sides of the feeding pipe 12 to abut against both sides of the material distributing wheel 16, preventing the furnace charge from falling through the gaps between the material distributing wheel 16 and the feeding pipe 12. As Figure 3 shown, the elastic device 13 and the feeding pipe 12 are of an integral closed structure. The end face of the elastic device 13 can be telescoped in the feeding pipe 12 through the spring so that the end faces of the two elastic devices 13 respectively abut against both sides of the material distributing wheel 16. The lengths of the end faces of the two elastic devices 13 exceed the thickness of the pipe wall of the feeding pipe 12, so that the springs of the elastic devices 13 will not enter the vertical feeding part of the feeding pipe 12, and the end of the elastic device 13 close to the material distributing wheel 16 is inclined downward to avoid the furnace charge flowing into the elastic device 13.

[0025] As Figure 1As shown in the figure, the two sides of the induction furnace 20 are respectively connected with the first support frame 22, and the two sides of the storage cavity 10 are respectively connected with the second support frame 15. The second support frame 15 is respectively fixed on the first support frame 22 through the hydraulic rod 14 to change the height of the storage cavity 10 through the telescopic movement of the hydraulic rod 14. After the furnace charge in the induction furnace 20 is melted, it is necessary to pour out the melted furnace charge from the induction furnace 20. The two sides of the induction furnace 20 are fixed on the first support frame 22 through the rotating shaft 23, so that the induction furnace 20 rotates through the rotating shaft 23 to pour out the melted furnace charge. At the furnace mouth position of the induction furnace 20, a drainage port 21 for guiding the flow is also provided. During the process of pouring out the melted furnace charge, it is necessary to raise the storage cavity 10 and the furnace cover 30, as Figure 2 shown, change the height of the storage cavity 10 through the telescopic movement of the hydraulic rod 14, and then tilt the induction furnace 20 to pour out the melted furnace charge.

[0026] Specifically, the lower plane inside the storage cavity 10 is inclined towards the feed pipe 12; the feed pipe 12 is arranged at the middle position of the storage cavity 10, which is convenient for the furnace charge to enter the feed pipe 12 due to the action of gravity.

[0027] In an embodiment of the present application, as Figure 3 shown, two grooves 161 are formed on the wheel wall of the material distribution wheel 16 and are arranged oppositely. The grooves 161 are semi-circular. In other embodiments, three or four grooves 161 can also be provided.

[0028] Specifically, in the embodiment of the present application, a plurality of devices for observing the melting condition of the induction furnace 20 are arranged on the furnace cover 30. For example, an observation port is arranged on the furnace cover 30, and a transparent glass is arranged on the observation port.

[0029] When the feeding device for the induction furnace provided by the present utility model is in use, the furnace cover 30 is covered on the furnace mouth of the induction furnace 20 through the hydraulic rod 14. The storage cavity 10 is provided with furnace charge. The motor connected to the material distribution wheel 16 is started, and the material distribution wheel 16 rotates. The furnace charge falls along the feed pipe 12 into the induction furnace 20. The feeding speed can be controlled by the rotation speed of the material distribution wheel 16, avoiding the danger caused by manual feeding. And the furnace cover 30 covers the furnace mouth of the induction furnace 20, preventing the melted furnace charge in the induction furnace 20 from splashing out. After the furnace charge in the induction furnace 20 is melted, the furnace cover 30 and the storage cavity 10 are lifted through the hydraulic rod 14, and the induction furnace 20 is rotated through the rotating shaft 23 to pour out the melted furnace charge in the induction furnace 20 from the drainage port 21.

[0030] The above are only the preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An induction furnace feeding device, characterized in that: The invention comprises a furnace cover (30) for covering the furnace opening of an induction furnace (20), a material storage cavity (10) being arranged above the furnace cover (30), the material storage cavity (10) being used for placing furnace materials, a material feeding pipe (12) being arranged at the bottom of the material storage cavity (10), the material feeding pipe (12) passing through the furnace cover (30) to communicate with the interior of the induction furnace (20); A dividing wheel (16) is arranged in the feed pipe (12), and the dividing wheel (16) is driven by a motor. The axis of the dividing wheel (16) is arranged horizontally, and a plurality of grooves (161) are arranged on the wheel wall of the dividing wheel (16) so that the furnace charge can enter the grooves (161). Through the rotation of the dividing wheel (16), the furnace charge falls along the feed pipe (12) into the induction furnace (20).

2. The induction furnace feeding device according to claim 1, characterized in that: A plurality of support rods (11) are arranged between the material storage cavity (10) and the furnace cover (30), and two ends of the support rods (11) are respectively fixed to the material storage cavity (10) and the furnace cover (30) by screws; A plurality of support rods (11) are arranged along the edge of the lower surface of the material storage chamber (10).

3. The induction furnace feeding device according to claim 1, characterized in that: Elastic devices (13) are respectively arranged in the feed pipe (12) on both sides relative to the dividing wheel (16), and springs are arranged in the elastic devices (13) so that the end faces of the two elastic devices (13) are respectively pressed against the two sides of the dividing wheel (16), and the end faces of the elastic devices (13) are concave surfaces that fit the contour of the dividing wheel (16).

4. The induction furnace feeding device according to claim 1, characterized in that: The two sides of the induction furnace (20) are respectively connected to first support frames (22), and the two sides of the material storage chamber (10) are respectively connected to second support frames (15), and the second support frames (15) are respectively fixed to the first support frames (22) through hydraulic rods (14) so ​​that the height of the material storage chamber (10) can be changed by extending and retracting the hydraulic rods (14).

5. The induction furnace feeding device according to claim 1, characterized in that: The lower plane inside the storage chamber (10) is inclined toward the feed pipe (12); The feed pipe (12) is arranged at a middle position of the storage chamber (10).

6. The induction furnace feeding device according to claim 1, characterized in that: Two grooves (161) arranged opposite to each other are formed on the wheel wall of the material dividing wheel (16), and the grooves (161) are semicircular.

7. The induction furnace feeding device according to claim 1, characterized in that: The furnace cover (30) is provided with an observation port, and transparent glass is provided on the observation port.

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