A feeding device for an EB furnace

Abstract

This utility model discloses a feeding device for an EB furnace, including a base plate, a slide rail above the base plate, and a feeding plate above the slide rail. A groove is formed along the length of the middle of the feeding plate, and a first through groove is formed in the middle of the groove. A material box is provided at the end of the feeding plate away from the EB furnace. The distance between the bottom surface of the material box and the bottom surface of the groove is greater than the thickness of a single briquette raw material but less than the thickness of two briquette raw materials. A slide bar is slidably installed inside the slide rail, and a wedge-shaped strip is fixed at the bottom of the slide bar. The wedge-shaped strip is connected in sequence to a long connecting rod, a short connecting rod, and a motor via a connecting block. At least two equidistantly distributed pushing components are provided on the slide bar. Each pushing component includes a concave plate, a rotating plate, a rotating shaft, and a torsion spring. This utility model achieves precise control of the single feeding amount and interval time through intermittent feeding, resulting in more uniform melting of the raw material.

Description

Technical Field

[0001] This utility model relates to the field of EB furnace technology, specifically to a feeding device for an EB furnace. Background Technology

[0002] Chinese patent CN217929748U discloses a feeding device for an EB furnace to prevent material jamming. The device includes a motor, with push rods fixedly connected to the output ends of the motor. Push plates are fixedly connected to the other ends of the push rods. Material bins are located on the left and right sides of the furnace body. Each material bin includes a guide plate, a bottom plate, a first stacking plate, and a second stacking plate. In this invention, when the motor is turned on, it transmits thrust to the push plates via the push rods, propelling the material in the material bins forward.

[0003] However, the patent uses a cylinder pushing mechanism for continuous feeding, which makes it impossible to accurately control the amount of material fed at one time and the interval time. When the briquette raw material continuously falls into the molten pool, the stacked raw material is difficult to fully melt in the central area due to the obstructed heat conduction path, which easily forms unmelted nuclei, requiring secondary melting and increasing energy consumption by 20%-30%. Summary of the Invention

[0004] The purpose of this invention is to provide a feeding device for an EB furnace, which has the advantages of intermittent feeding to achieve precise control of the amount and interval of a single feeding, thus solving the problems in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A feeding device for an EB furnace includes a base plate, a slide rail on the top of the base plate, and a feeding plate on the top of the slide rail. A groove is formed along the length of the middle of the feeding plate, and a first through groove is formed in the middle of the groove. A material box is provided at the end of the feeding plate away from the EB furnace. The distance between the bottom surface of the material box and the bottom surface of the groove is greater than the thickness of a single briquette material but less than the thickness of two briquette materials. A slide bar is slidably installed inside the slide rail, and a wedge-shaped strip is fixed to the bottom of the slide bar. The wedge-shaped strip is sequentially connected to a long connecting rod, a short connecting rod, and a motor via a connecting block.

[0007] The slide bar is provided with at least two equidistantly distributed pushing components. Each pushing component includes a concave plate, a rotating plate, a rotating shaft, and a torsion spring. The concave plate is fixed longitudinally to the surface of the slide bar. The rotating plate is hinged to the concave plate through the rotating shaft. The torsion spring is sleeved on both ends of the rotating shaft and is fixedly connected to the concave plate and the rotating shaft.

[0008] Preferably, the length of the rotating plate is greater than the vertical distance from the surface of the slide bar to the bottom of the groove and less than the vertical distance from the bottom of the material box to the surface of the slide bar.

[0009] Preferably, the slide rail has a second through groove along its length, and the slide bar slides through the second through groove.

[0010] Preferably, a connecting block is fixed in the middle of the bottom surface of the wedge-shaped strip, the connecting block is pivotally connected to one end of the long connecting rod, the other end of the long connecting rod is pivotally connected to the short connecting rod, and the end of the short connecting rod is fixed to the motor output shaft.

[0011] Preferably, the material box is connected to the top surface of the feed plate on both sides by fixing blocks, the material box is vertically connected and the discharge port is coaxially aligned with the groove.

[0012] Preferably, the spacing between the pushing components is an integer multiple of the width of the briquetting material.

[0013] Preferably, the opening of the concave plate faces the EB furnace, and both ends of the rotating shaft penetrate the side wall of the concave plate.

[0014] Preferably, the motor is fixedly mounted on the surface of the base plate, and the motor output shaft is coaxially connected to the end of the short connecting rod.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This invention utilizes the sliding pair of a slider and a wedge strip, combined with a linkage transmission system, to transform the continuous rotation of the motor into the precise reciprocating linear motion of the slider. This enables the intermittent, fixed-point feeding of the briquetting material, breaking through the traditional continuous feeding mode. Intermittent feeding allows each briquetting material to melt individually, resulting in uniform heat distribution in the molten pool. The rate of unmelted nuclei is reduced from 12% to 0.5%, melting efficiency is increased by 40%, and energy consumption per ton of material is reduced by 25%. Attached Figure Description

[0017] Figure 1 This is a diagram showing the overall structure of the present invention in its first feeding state.

[0018] Figure 2 This is a second feeding state diagram of the overall structure of this utility model;

[0019] Figure 3 This is a diagram showing the overall structure of the present invention in its third feeding state.

[0020] Figure 4 This is a top view of the overall structure of this utility model;

[0021] Figure 5 For the present utility model Figure 1 Enlarged view of point A in the middle.

[0022] In the diagram: 1. Base plate; 2. Slide rail; 3. Feed plate; 4. Groove; 5. Fixing block; 6. First through groove; 7. Pressing raw material; 8. Sliding strip; 9. Wedge strip; 10. Concave plate; 11. Rotating plate; 12. Rotating shaft; 13. Torsion spring; 14. Second through groove; 15. Connecting block; 16. Long connecting rod; 17. Short connecting rod; 18. Motor; 19. Bracket; 20. Material box. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] To address the problem of uneven melting caused by continuous feeding in existing technologies, the following technical solution is proposed. Please refer to [link / reference needed]. Figure 1-5 ;

[0025] A feeding device for an EB furnace includes a base plate 1, a slide rail 2 above the base plate 1, and a feeding plate 3 above the slide rail 2. The slide rail 2 and the feeding plate 3 are fixed to the base plate 1 on both sides by brackets 19.

[0026] A groove 4 for conveying briquetting raw material 7 is provided in the middle of the feed plate 3 along the extension direction of the feed plate 3. A first through groove 6 is provided in the middle of the groove 4. A material box 20 for placing briquetting raw material 7 is provided at the end of the feed plate 3 away from the EB furnace. The material box 20 is vertically connected, with the upper part being the inlet and the lower part being the outlet. The distance between the bottom surface of the material box 20 and the bottom surface of the groove 4 is greater than the thickness of one briquetting raw material 7 but less than the thickness of two briquetting raw materials 7. The two sides of the material box 20 are connected to the top surface of the feed plate 3 by fixing blocks 5. When the bottom briquetting raw material 7 is pushed away by the rotating plate 11, the upper briquetting raw material 7 falls into the groove 4 under the action of gravity to wait for the next pushing cycle.

[0027] The slide rail 2 has a second through groove 14 along its extension direction. A slide bar 8 is installed in the slide rail 2. The slide bar 8 is installed in the slide rail 2 through a wedge-shaped bar 9 fixed at its bottom. A connecting block 15 is installed at the center of the bottom of the wedge-shaped bar 9. The connecting block 15 is pivotally connected to one end of the long connecting rod 16. The other end of the long connecting rod 16 is pivotally connected to one end of the short connecting rod 17. The other end of the short connecting rod 17 is fixedly connected to the output shaft of the motor 18. The motor 18 is installed on the base plate 1. The motor 18 drives the wedge-shaped bar 9 and the slide bar 8 to reciprocate in the slide rail 2 through the transmission of the short connecting rod 17, the long connecting rod 16 and the connecting block 15 in sequence, thereby driving the rotating plate 11 to reciprocate.

[0028] The slide bar 8 is provided with no fewer than two pushing components, which are equidistant from each other. The spacing between the pushing components is an integer multiple of the width of the briquetting material 7. The pushing components include a concave plate 10, a rotating plate 11, a rotating shaft 12, and a torsion spring 13. The concave plate 10 is arranged longitudinally and its opening faces the EB furnace. The concave plate 10 is connected to the bottom end of the rotating plate 11 through the rotating shaft 12. Both ends of the rotating shaft 12 pass through the concave plate 10. The rotating shaft 12 is fitted with a torsion spring 13. One end of the torsion spring 13 is fixed to the concave plate 10, and the other end is fixed to the end of the rotating shaft 12. The length of the rotating plate 11 is greater than the vertical distance between the surface of the slide bar 8 and the bottom surface of the groove 4 and less than the vertical distance between the bottom surface of the material box 20 and the surface of the slide bar 8, so that the rotating plate 11 can pass through the first through groove 6 when rotating, and push the briquetting material 7.

[0029] Working principle: When the rotating plate 11 is located on the side of the briquetting material 7 away from the EB furnace, the short connecting rod 17 and the long connecting rod 16 are driven by the motor 18 to push the slide bar 8 to one side of the EB furnace, so that the rotating plate 11 pushes the briquetting material 7 to one side of the EB furnace. At this time, the briquetting material 7 at the very end falls off the feed plate 3, completing one feeding cycle. After the short connecting rod 17 rotates to a certain angle, the slide bar 8 is pulled to one side of the material box 20 by the long connecting rod 16. During the reset process, the rotating plate 11 abuts against the briquetting material 7. Under the pressure, the rotating plate 11 tilts to pass under the briquetting material 7. After passing, it resets under the action of the torsion spring 13. After the short connecting rod 17 rotates to a certain angle, the slide bar 8 is driven to move towards the EB furnace again by the long connecting rod 16, thus completing the intermittent feeding.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A feeding device for an EB furnace, comprising a base plate (1), characterized in that, A slide rail (2) is provided above the base plate (1), and a feeding plate (3) is provided above the slide rail (2); a groove (4) is opened in the middle of the feeding plate (3) along the length direction, and a first through groove (6) is provided in the middle of the groove (4); a material box (20) is provided at the end of the feeding plate (3) away from the EB furnace, and the distance between the bottom surface of the material box (20) and the bottom surface of the groove (4) is greater than the thickness of a single piece of pressed raw material (7) and less than the thickness of two pieces of pressed raw material (7); a slide bar (8) is slidably installed in the slide rail (2), and a wedge strip (9) is fixed at the bottom of the slide bar (8). The wedge strip (9) is connected in sequence to a long connecting rod (16), a short connecting rod (17) and a motor (18) through a connecting block (15); The slide bar (8) is provided with at least two equally spaced pushing components. Each pushing component includes a concave plate (10), a rotating plate (11), a rotating shaft (12), and a torsion spring (13). The concave plate (10) is longitudinally fixed on the surface of the slide bar (8). The rotating plate (11) is hinged to the concave plate (10) through the rotating shaft (12). The torsion spring (13) is sleeved on both ends of the rotating shaft (12) and is fixedly connected to the concave plate (10) and the rotating shaft (12).

2. The feeding device for an EB furnace according to claim 1, characterized in that, The length of the rotating plate (11) is greater than the vertical distance from the surface of the slide bar (8) to the bottom surface of the groove (4) and less than the vertical distance from the bottom surface of the material box (20) to the surface of the slide bar (8).

3. A feeding device for an EB furnace according to claim 2, characterized in that, The slide rail (2) has a second through groove (14) along its length, and the slide bar (8) slides through the second through groove (14).

4. A feeding device for an EB furnace according to claim 3, characterized in that, The wedge-shaped strip (9) has a fixed connecting block (15) at the middle of its bottom surface. The connecting block (15) is pivotally connected to one end of the long connecting rod (16), and the other end of the long connecting rod (16) is pivotally connected to the short connecting rod (17). The end of the short connecting rod (17) is fixed to the output shaft of the motor (18).

5. A feeding device for an EB furnace according to claim 4, characterized in that, The material box (20) is connected to the top surface of the feed plate (3) on both sides by fixing blocks (5). The material box (20) is vertically connected and the discharge port is coaxially aligned with the groove (4).

6. A feeding device for an EB furnace according to claim 5, characterized in that, The spacing between the pusher components is an integer multiple of the width of the briquetting material (7).

7. A feeding device for an EB furnace according to claim 6, characterized in that, The concave plate (10) has an opening facing the EB furnace, and the two ends of the rotating shaft (12) pass through the side wall of the concave plate (10).

8. A feeding device for an EB furnace according to claim 7, characterized in that, The motor (18) is fixedly installed on the surface of the base plate (1), and the output shaft of the motor (18) is coaxially connected to the end of the short connecting rod (17).

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