Automatic feeding device for multi-section furnace

Abstract

The utility model relates to the field of feeding equipment, and discloses an automatic feeding device for a multi-section furnace, which comprises a spiral conveyor, the spiral conveyor is obliquely designed, a feeding frame is arranged below a discharge port at the upper end of the spiral conveyor, a rotating shaft is rotationally arranged in the feeding frame through a bearing, and a feeding hopper is arranged in the feeding frame. A plurality of groups of crushing rods which are distributed at equal intervals are arranged on the rotating shaft, each group of crushing rods comprises eight crushing rods which are arranged in an annular array, a plurality of rake nails which are distributed at equal intervals are arranged on the upper side and the lower side of the surface of the outer ring of each crushing rod, and the rake nails are perpendicular to the surfaces of the crushing rods; the feeding frame is arranged at the lower end of the spiral conveyor, the multiple smashing rods are rotationally arranged in the feeding frame, the rake nails are arranged on the smashing rods, the rake nails can push materials downwards when rotating, then the materials are scattered, and the materials entering the multi-section furnace are scattered, cannot be bonded together and are good in fluidity.

Description

Technical Field

[0001] The utility model relates to the field of feeding equipment, in particular to an automatic feeding device for a multi-stage furnace. Background Art

[0002] The molten salt electrolysis method is an important method for producing rare earth metals and rare earth alloys. During the processing of molten salt slag, it needs to be fed into a multi-stage furnace for corresponding roasting and distillation. Generally, when feeding, a screw conveyor is designed to be inclined, and the discharge port of the screw conveyor is placed above the feed port of the multi-stage furnace, so that the material continuously enters. Since the material itself has a certain viscosity, especially after being fed by the screw conveyor, the materials will stick together, resulting in material adhesion, poor fluidity, abnormal feeding inside the multi-stage furnace, and inability to disperse after entering the multi-stage furnace, leading to low subsequent roasting efficiency. For this reason, we have designed an automatic feeding device for a multi-stage furnace. Summary of the Utility Model

[0003] To solve the technical problem that materials stick together, resulting in material adhesion, material cohesion, and poor fluidity, the utility model provides an automatic feeding device for a multi-stage furnace.

[0004] The utility model is realized by the following technical solutions: an automatic feeding device for a multi-stage furnace, including a screw conveyor. The screw conveyor is designed to be inclined, and a feeding frame is installed below the upper discharge port of the screw conveyor. A rotating shaft is rotatably installed inside the feeding frame through bearings. Multiple groups of equally spaced crushing rods are arranged on the rotating shaft. Each group of crushing rods includes eight crushing rods arranged in a circular array. On the upper and lower sides of the outer surface of each crushing rod, a plurality of equally spaced rake nails are arranged, and the rake nails are perpendicular to the surface of the crushing rod.

[0005] As a further improvement of the above solution, the front end of the rotating shaft passes through the feeding frame and is located outside it, and the front end of the rotating shaft is connected to the output shaft of a driving motor. The rotation of the output shaft of the driving motor can make the rotating shaft rotate, and then make multiple crushing rods and the rake nails on the crushing rods rotate synchronously, so as to disperse the falling materials and prevent them from sticking together, facilitating subsequent processing.

[0006] As a further improvement of the above solution, a support one and a support two are respectively rotatably installed below the middle and the right side of the screw conveyor through pins. The screw conveyor is designed to be inclined with its left end higher than its right end, and the height of the support one is adjustable, so that the height of the screw conveyor can be changed according to needs, suitable for multi-stage furnaces of various different heights.

[0007] As a further improvement of the above solution, the feeding frame includes a straight pipe section, an arc section is integrally formed above the straight pipe section, and the tops of the arc sections on the left and right sides are designed to spread outwards to form widened sections. The crushing rods and the rotating shaft are placed inside the arc sections, and the axis of the rotating shaft is collinear with the axis of the arc section. The width above the widened section increases, and the arc section is used for the rotation of the crushing rods. When the crushing rods break the materials, they will not collide with the inner wall of the feeding frame.

[0008] As a further improvement of the above solution, a sealing plate is installed at the top of the feeding frame. An opening is provided in the middle above the sealing plate, and a connecting hose is connected to the opening. The upper end of the connecting hose is connected to the discharge port of the screw conveyor through a flange. The connecting hose is a kind of cloth bag pipe, and a certain margin is left for the connecting hose. The vibration generated during the feeding process of the screw conveyor will not affect the feeding frame, and the connection between the two is not easy to loosen. A flange is also provided at the lower end of the feeding frame, and the lower end of the feeding frame is connected to the feeding port of the multi-stage furnace through a flange.

[0009] As a further improvement of the above solution, guide rods are provided on the inner walls of the left and right sides inside the arc section of the feeding frame. One guide rod is provided between two adjacent crushing rods, and the inner end of the guide rod does not contact the crushing rod. The inner end of the guide rod is lower than the outer end, and a convex portion is formed on the protruding part at the upper end of the guide rod. The middle of the convex portion is higher than the left and right ends. The design of the guide rod can block and guide the materials, so that the materials on the left and right sides of the feeding frame can flow downward to the middle, which is convenient for the crushing rods and the rake nails to disperse the materials. And the design of the convex portion makes it not easy for materials to remain on the guide rod.

[0010] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0011] 1. In the present invention, a feeding frame is arranged at the lower end of the screw conveyor. A plurality of crushing rods are rotatably arranged in the feeding frame, and rake nails are arranged on the crushing rods. When the rake nails rotate, they can push the materials downward, so that the materials are dispersed. The materials entering the multi-stage furnace are dispersed and will not stick together, and have good fluidity;

[0012] 2. By arranging a plurality of guide rods at the left and right ends of the feeding frame, and the guide rods are arranged in the gaps between the crushing rods, the materials can be blocked and guided, so that the materials on the left and right sides of the feeding frame can flow downward to the middle, which is convenient for the crushing rods and the rake nails to disperse the materials. And the design of the convex portion makes it not easy for materials to remain on the guide rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 FIG. is a schematic diagram of the overall structure of an automatic feeding device for a multi-stage furnace provided by the present invention;

[0014] Figure 2 is Figure 1 Internal structure schematic diagram of the feeding frame in

[0015] Figure 3 is Figure 2 Structure schematic diagram of the rotating shaft and the crushing rod in

[0016] Figure 4 is Figure 1 Rear side schematic diagram of

[0017] Main symbol description:

[0018] 1. Screw conveyor; 11. Bracket 1; 12. Bracket 2; 2. Connecting hose; 3. Feeding frame; 31. Straight pipe section; 32. Arc section; 33. Widened section; 34. Sealing plate; 4. Driving motor; 5. Rotating shaft; 6. Crushing rod; 61. Rake nails; 7. Guide rod; 71. Protruding part. Specific implementation manners

[0019] Next, in combination with the attached drawings and specific implementation manners, the present utility model will be further described. It should be noted that, on the premise of no conflict, any combination can be formed between the following described embodiments or technical features to form a new embodiment.

[0020] Embodiment:

[0021] Please combine with Figures 1-4 , An automatic feeding device for a multi-stage furnace in this embodiment includes a screw conveyor 1. The screw conveyor 1 is inclined, and a feeding frame 3 is installed below the upper discharge port of the screw conveyor 1. A rotating shaft 5 is rotatably installed inside the feeding frame 3 through a bearing. Multiple groups of equally spaced crushing rods 6 are arranged on the rotating shaft 5. Each group of crushing rods 6 includes eight crushing rods 6 arranged in a circular array. And multiple equally spaced rake nails 61 are arranged on the upper and lower sides of the outer surface of each crushing rod 6, and the rake nails 61 are perpendicular to the surface of the crushing rod 6.

[0022] The front end of the rotating shaft 5 passes through the feeding frame 3 and is placed outside it, and the front end of the rotating shaft 5 is connected to the output shaft of the driving motor 4. The rotation of the output shaft of the driving motor 4 can make the rotating shaft 5 rotate, and then can make multiple crushing rods 6 and the rake nails 61 on the crushing rods 6 rotate synchronously, which can disperse the falling materials so that they will not stick together, facilitating subsequent processing.

[0023] Bracket 11 and bracket 12 are respectively rotatably installed below the middle and right side of the screw conveyor 1 through pins. The screw conveyor 1 is inclined with the left end higher than the right end. The height of bracket 11 is adjustable, and the height of the screw conveyor 1 can be changed according to needs, which is suitable for multi-stage furnaces with various different heights.

[0024] The feeding frame 3 includes a straight pipe section 31, with an arc section 32 integrally formed above the straight pipe section 31. The tops of the arc sections 32 on the left and right sides are designed to spread outwards to form widened sections 33. The crushing rod 6 and the rotating shaft 5 are placed inside the arc section 32, and the axis of the rotating shaft 5 is collinear with the axis of the arc section 32. The width above the widened section 33 increases, and the arc section 32 is used for the rotation of the crushing rod 6. The crushing rod 6 breaks the material so that it will not collide with the inner wall of the feeding frame 3.

[0025] A sealing plate 34 is installed at the top of the feeding frame 3. An opening is provided in the middle above the sealing plate 34, and a connecting hose 2 is connected to the opening. The upper end of the connecting hose 2 is connected to the discharge port of the screw conveyor 1 through a flange. The connecting hose 2 is a kind of cloth bag pipe, and a certain margin is left for the connecting hose 2. The vibration generated during the feeding process of the screw conveyor 1 will not affect the feeding frame 3, and the connection between the two is not easy to loosen. A flange is also provided at the lower end of the feeding frame 3, and the lower end of the feeding frame 3 is connected to the feeding port of the multi-stage furnace through a flange.

[0026] Guide rods 7 are provided on the inner walls of the left and right sides inside the arc section 32 of the feeding frame 3. One guide rod 7 is provided between two adjacent crushing rods 6, and the inner end of the guide rod 7 does not contact the crushing rod 6. The inner end of the guide rod 7 is lower than the outer end, and a convex portion 71 is formed at the protruding part of the upper end of the guide rod 7. The middle of the convex portion 71 is higher than the left and right ends. The design of the guide rod 7 can block and guide the material, so that the material on the left and right sides of the feeding frame 3 can flow downward to the middle, which is convenient for the crushing rod 6 and the rake nails 61 to disperse the material, and the design of the convex portion 71 makes it not easy for the material to remain on the guide rod 7.

[0027] The implementation principle of an automatic feeding device for a multi-stage furnace in the embodiment of the present application is as follows: In actual use, the material is added into the feeding port of the screw conveyor 1, and it will move upward under the action of the auger in the screw conveyor 1 and enter the feeding frame 3. The multiple crushing rods 6 and rake nails 61 in the feeding frame 3 will rotate rapidly under the action of the driving motor 4 and the rotating shaft 5, so that the falling material is dispersed, and part of the material will fall onto the guide rod 7 and will be concentrated to the middle along the guide rod 7 and be dispersed again, so that the material entering the multi-stage furnace is dispersed and will not stick together, and has good fluidity;

[0028] By providing the feeding frame 3 at the lower end of the screw conveyor 1, multiple crushing rods 6 are rotatably arranged in the feeding frame 3, and rake nails 61 are provided on the crushing rods 6. When the rake nails 61 rotate, they can push the material downward, so that the material is dispersed, and the material entering the multi-stage furnace is dispersed and will not stick together, and has good fluidity;

[0029] By arranging a plurality of diversion rods 7 at the left and right ends of the feeding frame 3, and placing the diversion rods 7 in the gaps of the crushing rods 6, the material can be blocked and diverted, so that the materials on the left and right sides of the feeding frame 3 can flow downward to the middle, thereby facilitating the dispersion of the crushing rods 6 and the rake nails 61, and the design of the convex portion 71 makes it difficult for materials to remain on the diversion rods 7.

[0030] The above embodiments are only the preferred embodiments of the present invention, and the scope of protection of the present invention cannot be limited thereby. Any non-substantive changes and substitutions made by those skilled in the art on the basis of the present invention belong to the scope of protection required by the present invention.

Claims

1. An automatic feeding device for a multi-stage furnace, comprising a screw conveyor (1), characterized in that: The screw conveyor (1) is designed to be inclined, and a feed frame (3) is installed below the upper end discharge port of the screw conveyor (1). A rotating shaft (5) is rotatably installed inside the feed frame (3) through a bearing. A plurality of groups of equally spaced crushing rods (6) are arranged on the rotating shaft (5). Each group of crushing rods (6) includes eight crushing rods (6) in a circular array, and a plurality of equally spaced rake nails (61) are arranged on both upper and lower sides of the outer ring surface of each crushing rod (6), and the rake nails (61) are designed to be perpendicular to the surface of the crushing rod (6).

2. An automatic feeding device for a multi-stage furnace as claimed in claim 1, characterized in that: The front end of the rotating shaft (5) passes through the feeding frame (3) and is placed outside the feeding frame (3), and the front end of the rotating shaft (5) is connected to the output shaft of the driving motor (4).

3. The automatic feeding device for a multi-stage furnace according to claim 1, characterized in that: A bracket 1 (11) and a bracket 2 (12) are rotatably mounted in the middle and right side of the screw conveyor (1) respectively via axle pins. The screw conveyor (1) is designed to be inclined with the left end higher than the right end.

4. The automatic feeding device for a multi-stage furnace according to claim 1, characterized in that: The feed frame (3) comprises a straight pipe section (31), an arc section (32) is integrally formed above the straight pipe section (31), the top ends of the arc sections (32) on the left and right sides are designed to spread outward to form widened sections (33), the crushing rod (6) and the rotating shaft (5) are placed in the arc section (32), and the axis of the rotating shaft (5) is collinear with the axis of the arc section (32).

5. An automatic feeding device for a multi-stage furnace as claimed in claim 4, characterized in that: A sealing plate (34) is installed at the top of the feed frame (3), an opening is provided in the middle of the upper part of the sealing plate (34), a connecting hose (2) is connected to the opening, and the upper end of the connecting hose (2) is connected to the discharge port of the screw conveyor (1) through a flange.

6. An automatic feeding device for a multi-stage furnace as claimed in claim 4, characterized in that: Guide rods (7) are provided on the inner walls on both the left and right sides of the arc section (32) of the feed frame (3), a guide rod (7) is provided between two adjacent crushing rods (6), and the inward end of the guide rod (7) does not contact the crushing rod (6), the inward end of the guide rod (7) is lower than the outward end, and a protruding portion (71) is formed on the upper end of the guide rod (7), and the middle of the protruding portion (71) is higher than the left and right ends.

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