An insertable steel ball extractor for a ball mill

Abstract

The utility model discloses a kind of plug-in steel ball extractor suitable for ball mill, including cylinder, web, intermediate pipe, lifting rod and sealing structure, the bottom of the cylinder is equipped with cylinder bottom, the middle part of cylinder bottom is equipped with round hole, and the round hole between the lower part sidewall of cylinder and the middle part of cylinder bottom is welded along week with taper plate, forming tapered bottom;The upper part of the cylinder is equipped with web along week, and the middle part of web is equipped with intermediate pipe, and lifting rod passes through intermediate pipe and can relatively slide along intermediate pipe;The upper end of lifting rod is equipped with lifting ring bolt, and bottom end is connected sealing structure.The utility model adopts plug-in structure, to ensure that steel ball does not fall outside cylinder during ball adding process, causing safety accident.

Description

Technical Field

[0001] This utility model relates to an insert-type steel ball extractor for ball mills, belonging to the technical field of mills. Background Technology

[0002] Ball mills, as large-scale automated grinding equipment, are widely used in mineral processing, metallurgy, and other industries. Due to their high grinding efficiency, strong processing capacity, and large size, their application in the current mining field is gradually expanding. Ball mills require a certain amount of steel balls to be loaded. Generally, the weight of the steel balls is equivalent to the weight of the rotating part. For small mills, the loading amount of steel balls is relatively small, and manual ball loading can be used. However, for large ball mills, the initial loading amount of steel balls is relatively large, and mechanized or semi-mechanized ball loading methods must be considered to reduce the intensity of manual labor. The initial ball loading method on-site is generally to add steel balls through a self-made steel ball loading funnel or by directly suspending the steel balls in nylon bags through the manhole door of the mill body. This method is time-consuming and labor-intensive, has poor versatility, and carries the risk of steel balls falling, increasing safety hazards. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide an insert-type steel ball extractor suitable for ball mills, which addresses the shortcomings of existing technologies, reduces labor intensity, and ensures safe production.

[0004] To solve this technical problem, this utility model provides an insert-type steel ball extractor for a ball mill, comprising a cylinder, stiffening plates, a central circular tube, a lifting rod, and a sealing structure. The bottom of the cylinder is provided with a cylinder bottom, and a circular hole is provided in the middle of the cylinder bottom. A conical plate is welded around the lower side wall of the cylinder and the circular hole in the middle of the cylinder bottom to form a conical bottom. The upper part of the cylinder is provided with stiffening plates around the circumference, and a central circular tube is provided in the middle of the stiffening plates. The lifting rod passes through the central circular tube and can slide relative to it. The upper end of the lifting rod is provided with a lifting eye bolt, and the bottom end is connected to the sealing structure.

[0005] The stiffening plates consist of two layers, with three plates in each layer, and are evenly distributed and welded to the inner wall of the cylinder along the circumference.

[0006] The intermediate circular tube is connected to the stiffening plate by welding and is arranged on the central axis of the cylinder.

[0007] The cylinder also includes steel plate one, steel plate two, cylinder body and outlet. The cylinder body is a cylindrical structure. Steel plate one and steel plate two are welded together to form a steel ball "U-shaped" inlet and welded to the cylinder body to transport steel balls into the cylinder.

[0008] The lifting rod includes a lifting eye bolt, a round steel bar, and a sealing structure. The lifting eye bolt is assembled with the round steel bar by a threaded connection; the sealing structure is welded to the bottom of the round steel bar.

[0009] The sealing structure includes a conical surface, a base plate one, and a base plate two. The base plate one is welded to the bottom of the conical surface. The conical surface and the base plate one are welded to the lower end of the round steel. The base plate two is welded to the bottom of the round steel as a bottom support. There is a gap between the base plate one and the base plate two. This gap is adapted to the bottom of the cylinder and the outlet to ensure that the sealing structure precisely seals the round hole at the bottom of the cylinder when the lifting rod is lifted.

[0010] The bottom of the cylindrical hole has an outlet welded to it, which is used to insert the steel ball into the mill manhole to prevent it from falling outside the mill.

[0011] Beneficial effects: This utility model adopts a self-lifting rod and cylinder method, and the bottom can be automatically locked when the lifting rod is lifted; the bottom of the extractor is inserted into the mill manhole door, the base plate sits on the manhole door, and the ball is automatically unloaded when lowered, reducing the intensity of manual labor; the conical bottom surface ensures that the steel ball can fall smoothly from the extractor; the insertion structure ensures that the steel ball will not fall outside the cylinder during the ball adding process and cause a safety accident. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0014] Figure 3 This utility model Figure 2 A schematic diagram of direction A;

[0015] Figure 4 This is a basic schematic diagram of the feeding device of this utility model;

[0016] Figure 5 This utility model Figure 3 BB cross-section diagram.

[0017] In the diagram: 1. Cylinder body; 2. Rib plate; 3. Intermediate circular tube; 4. Lifting rod; 5. Steel plate one; 6. Steel plate two; 7. Cylinder body; 8. Cylinder bottom; 81. Circular hole; 9. Conical plate; 10. Outlet; 11. Lifting eye bolt; 12. Round steel; 13. Conical surface; 14. Bottom plate one; 15. Bottom plate two; 16. Sealing structure. Detailed Implementation

[0018] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] like Figures 1-5As shown, this utility model provides an insert-type steel ball extractor for a ball mill, including a cylinder 1, a stiffening plate 2, a central circular tube 3, a lifting rod 4, and a sealing structure 16. The bottom of the cylinder 1 is provided with a cylinder bottom 8, and a circular hole 81 is provided in the middle of the cylinder bottom 8. A conical plate 9 is welded around the lower side wall of the cylinder 1 and the circular hole 81 in the middle of the cylinder bottom 8 to form a conical bottom, which is conducive to the falling of steel balls. The upper part of the cylinder 1 is provided with a stiffening plate 2 around the circumference, and a central circular tube 3 is provided in the middle of the stiffening plate 2. The lifting rod 4 passes through the central circular tube 3 and can slide relative to the central circular tube 3. The upper end of the lifting rod 4 is provided with a lifting eye bolt 11, and the bottom end is connected to the sealing structure 16.

[0020] The stiffening plate 2 consists of two layers, with three pieces in each layer. They are evenly distributed and welded to the inner wall of the cylinder 1 along the circumference. The stiffening plate 2 ensures that the middle circular tube 3 is located on the central axis of the cylinder 1.

[0021] The intermediate circular tube 3 is connected to the stiffening plate 2 by welding and is arranged on the central axis of the cylinder 1.

[0022] The cylinder 1 also includes steel plate 5, steel plate 6, cylinder body 7 and outlet 10. The cylinder body 7 is a cylindrical structure. Steel plate 5 and steel plate 6 are welded together to form a steel ball "U-shaped" inlet and welded to the cylinder body 7 to transport steel balls into the cylinder.

[0023] The lifting rod 4 includes a lifting eye bolt 11, a round steel bar 12, and a sealing structure 16. The lifting eye bolt 11 is assembled with the round steel bar 12 by a threaded connection; the sealing structure 16 is welded to the bottom of the round steel bar 12.

[0024] The sealing structure 16 includes a conical surface 13, a first base plate 14, and a second base plate 15. The first base plate 14 is welded to the bottom of the conical surface 13. The conical surface 13 and the first base plate 14 are welded to the lower end of the round steel 12 to form a conical structure, which is conducive to the sliding of the steel ball. The second base plate 15 is welded to the bottom of the round steel 12 as a bottom support. There is a gap between the first base plate 14 and the second base plate 15. This gap is adapted to the bottom of the cylinder 8 and the outlet 10 to ensure that the sealing structure 16 precisely seals the round hole 81 of the bottom of the cylinder 8 when the lifting rod 4 is lifted.

[0025] The bottom of the cylindrical bottom 8 has an outlet 10 welded to the bottom of the round hole 81, which is used to insert into the mill manhole to prevent the steel ball from falling to the outside of the mill.

[0026] In use, the extractor described in this utility model is placed in the prepared pit to load it with balls. The steel ball extractor is lifted by using a crane or hoist to lift the lifting rod 4 and the lifting eye bolt 11. At this time, the bottom can be automatically locked. When adding balls to the mill, the bottom outlet 10 of the extractor is inserted into the mill manhole door, the bottom of the cylinder 8 sits on the manhole door, and the balls are automatically unloaded when the lifting rod 4 is lowered.

[0027] This utility model adopts a self-lifting rod and cylinder method. When the lifting rod is lifted, the bottom can be automatically locked. The bottom of the extractor is inserted into the mill manhole door, and the base plate sits on the manhole door. When it is lowered, the ball is automatically unloaded, reducing the intensity of manual labor. The conical bottom surface ensures that the steel ball can fall smoothly from the extractor. The insertion structure ensures that the steel ball will not fall outside the cylinder during the ball adding process, causing a safety accident.

[0028] The above-described embodiments of this utility model are merely illustrative examples and are not the only ones. All modifications within the scope of this utility model or equivalent to this utility model are encompassed by this utility model.

Claims

1. An insert-type steel ball extractor for a ball mill, characterized in that: The cylinder (1) includes a cylindrical body (1), a stiffening plate (2), a central circular tube (3), a lifting rod (4), and a sealing structure (16). The bottom of the cylindrical body (1) is provided with a bottom (8), and a circular hole (81) is provided in the middle of the bottom (8). A conical plate (9) is welded around the lower side wall of the cylindrical body (1) and the circular hole (81) in the middle of the bottom (8) to form a conical bottom. The upper part of the cylindrical body (1) is provided with a stiffening plate (2), and a central circular tube (3) is provided in the middle of the stiffening plate (2). The lifting rod (4) passes through the central circular tube (3) and can slide relative to the central circular tube (3). The upper end of the lifting rod (4) is provided with a lifting eye bolt (11), and the bottom end is connected to the sealing structure (16).

2. The ball mill insert-type steel ball extractor according to claim 1, characterized in that: The stiffening plate (2) consists of two layers, with three pieces in each layer, which are evenly distributed and welded to the inner wall of the cylinder (1) along the circumference.

3. The ball mill insert-type steel ball extractor according to claim 1, characterized in that: The intermediate circular tube (3) is connected to the stiffening plate (2) by welding and is arranged on the central axis of the cylinder (1).

4. The ball mill insert-type steel ball extractor according to claim 1, characterized in that: The cylinder (1) also includes steel plate one (5), steel plate two (6), cylinder body (7) and outlet (10). The cylinder body (7) is a cylindrical structure. Steel plate one (5) and steel plate two (6) are welded together to form a steel ball "U-shaped" inlet and welded to the cylinder body (7) to transport steel balls into the cylinder (1).

5. The ball mill insert-type steel ball extractor according to claim 1, characterized in that: The lifting rod (4) includes a lifting eye bolt (11), a round steel bar (12) and a sealing structure (16). The lifting eye bolt (11) is assembled with the round steel bar (12) by a threaded connection; the sealing structure (16) is welded to the bottom of the round steel bar (12).

6. The ball mill insert-type steel ball extractor according to claim 1, characterized in that: The sealing structure (16) includes a conical surface (13), a bottom plate one (14) and a bottom plate two (15). The bottom of the conical surface (13) is welded to the bottom of the bottom plate one (14). The conical surface (13) and the bottom plate one (14) are welded to the lower end of the round steel (12). The bottom plate two (15) is welded to the bottom of the round steel (12) as a bottom support. There is a gap between the bottom plate one (14) and the bottom plate two (15). This gap is adapted to the bottom of the cylinder (8) and the outlet (10) to ensure that the sealing structure (16) just blocks the round hole (81) of the bottom of the cylinder (8) when the lifting rod (4) is lifted.

7. The ball mill insert-type steel ball extractor according to any one of claims 1-6, characterized in that: The bottom of the cylindrical bottom (8) has an outlet (10) welded to the bottom of the round hole (81) for insertion into the mill manhole to prevent the steel ball from falling to the outside of the mill.

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