High-stability ball mill grinding cylinder

Abstract

The utility model relates to ball mill technical field. Purpose at in providing a kind of high-stability ball mill mill barrel, including mill barrel, the mill barrel is constituted by cylinder and the lining plate of several inner surfaces being set in cylinder;The inner surface of the cylinder is formed with several longitudinal and transverse staggered rib plate;The lining plate includes substrate and lining panel, the bottom surface of the substrate is provided with the cross-shaped rib groove corresponding with the staggered area of rib plate, the substrate is clamped on rib plate by rib groove, and the lining panel is installed on the surface of substrate;The cylinder, substrate and lining panel are correspondingly provided with several groups of bolt holes, and are connected by the fastening bolt being threaded in bolt hole.The utility model can position lining plate conveniently and quickly, ensure the stability of lining panel installation, and can share the shear force received by fastening bolt.

Description

Technical Field

[0001] This utility model relates to the field of ball mill technology, specifically to a highly stable ball mill cylinder. Background Technology

[0002] A ball mill is a general-purpose device that uses the impact and grinding action of grinding media (such as grinding balls or ceramic balls) to crush and grind solid materials into fine or ultrafine particles. Its core structure typically includes a grinding cylinder, grinding media, a feeding device, and a discharging device. During operation, a motor drives the cylinder to rotate. The internal media rises with the cylinder wall to a certain height and then falls or is thrown down due to gravity, impacting, squeezing, and grinding the material inside the cylinder, ultimately achieving the target particle size.

[0003] The grinding cylinder of a ball mill includes a cylinder body and an inner liner plate installed on the inner wall of the cylinder body. The inner liner plate is directly connected to the cylinder body by fastening bolts. The inner liner plate is a consumable part of the ball mill. Under this existing structure, when replacing the inner liner plate, the bolt holes on the cylinder body and the inner liner plate need to be aligned in order to install the fastening bolts, which makes it difficult to position the inner liner plate. On the other hand, when the grinding cylinder is running, part of the tangential force impact from the reaction of the material and the grinding balls will be transmitted to the fastening bolts through the inner liner plate, resulting in a large shear impact on the fastening bolts. Summary of the Invention

[0004] The purpose of this invention is to provide a ball mill cylinder that is easy to install and position, has high connection strength, and is highly stable.

[0005] To achieve the above-mentioned objectives, the technical solution adopted by this utility model is: a highly stable ball mill grinding cylinder, comprising a grinding cylinder, wherein the grinding cylinder is composed of a cylinder body and a plurality of inner lining plates disposed on the inner surface of the cylinder body; a plurality of crisscrossing ribs are formed on the inner surface of the cylinder body;

[0006] The inner lining plate includes a base plate and a lining plate. The bottom surface of the base plate is provided with a cross-shaped rib groove corresponding to the intersecting area of ​​the rib plate. The base plate is clamped onto the rib plate through the rib groove. The lining plate is installed on the surface of the base plate. The cylinder, the base plate and the lining plate are provided with a number of sets of bolt holes, and are connected by fastening bolts passing through the bolt holes.

[0007] Preferably, the surface of the liner plate away from the substrate plate is provided with two protruding ridges extending along the length of the grinding cylinder, and the protruding ridges form a pusher groove.

[0008] Preferably, the substrate plate has two positioning ridges extending along the length of the grinding cylinder on the side facing the liner plate, and the liner plate has a positioning groove that matches the positioning ridges at the position opposite to the positioning ridges.

[0009] Preferably, the cross-section of the positioning ridge and the positioning groove is semi-circular.

[0010] The beneficial effects of this utility model are mainly reflected in: it can conveniently and quickly position the inner lining plate, ensuring the stability of the inner lining plate installation, and at the same time, it can distribute the shear force on the fastening bolts. Specifically, during use, the stiffening plates set on the inner surface of the cylinder can directly strengthen the cylinder, increasing its strength. Furthermore, their intersections can serve as positioning nodes for the inner lining plate installation, improving the stability and accuracy of the inner lining plate installation positioning. In addition, the stiffening plates can directly disperse the impact force on the inner lining plate, reducing the shear force directly applied to the fastening bolts and extending the overall service life. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the installation structure of this utility model on a ball mill;

[0012] Figure 2 This is a schematic diagram of the stiffening plate in the unfolded state of the inner surface of the cylinder.

[0013] Figure 3 for Figure 2 The diagram shows the structure after the inner liner is installed.

[0014] Figure 4 This is a schematic diagram of the cross-section of the inner lining plate. Detailed Implementation

[0015] like Figure 1 As shown, a highly stable ball mill grinding cylinder includes a grinding cylinder 0, which is composed of a cylinder body 13 and several inner lining plates 14 disposed on the inner surface of the cylinder body 13. For clearer illustration, this utility model is shown with the inner surface of the grinding cylinder 0 unfolded as a representation. However, in practical applications, the corresponding components should have an arc surface adapted to the cylindrical shape.

[0016] like Figure 2 As shown, several crisscrossing ribs 15 are formed on the inner surface of the cylinder 13, and the height of the ribs 15 is generally 5-10 cm. Figure 4 As shown, the inner lining plate 14 includes a base plate 16 and a lining plate 17. The bottom surface of the base plate 16 is provided with a cross-shaped rib groove 18 corresponding to the intersecting area of ​​the rib plate 15. The base plate 16 is secured to the rib plate 15 through the rib groove 18, and the lining plate 17 is installed on the surface of the base plate 16. The cylinder 13, the base plate 16, and the lining plate 17 are provided with a number of sets of bolt holes, and are connected by fastening bolts passing through the bolt holes.

[0017] In use, the stiffening ribs 15 on the inner surface of the cylinder 13 can directly strengthen the cylinder 13 and increase its strength. On the other hand, their intersections can also serve as positioning nodes for the installation of the inner lining plate 14, improving the stability and accuracy of the installation and positioning of the inner lining plate 14. In addition, the stiffening ribs 15 can directly disperse the impact force on the inner lining plate 14, reduce the shear force applied directly to the fastening bolts, and improve the overall service life.

[0018] During installation, an inner lining plate 14 can be laid flat along the length of the cylinder 13. However, only the base plate 16 is installed at this time, and the base plate 16 can be used as a track for transporting other inner lining plates 14 to prevent the ribs 15 from intersecting and affecting the installation of the inner lining plates 14.

[0019] To ensure efficient material lifting, the surface of the liner plate 17 away from the substrate plate 16 is provided with two protruding ribs 19 extending along the length of the grinding cylinder 0, forming a pusher groove 20 between the protruding ribs 19. The installation of the substrate plate 16 and the liner plate 17 can be as follows: Figure 4 As shown, the substrate plate 16 has two positioning ridges 21 extending along the length of the grinding cylinder 0 on the side facing the liner plate 17. The liner plate 17 has a positioning groove 22 that cooperates with the positioning ridges 21 at the position opposite to the positioning ridges 21. The cross-section of the positioning ridges 21 and the positioning groove 22 is semi-circular.

Claims

1. A highly stable ball mill cylinder, characterized in that: It includes a grinding cylinder (0), which is composed of a cylinder body (13) and a plurality of inner lining plates (14) disposed on the inner surface of the cylinder body (13); a plurality of crisscrossing ribs (15) are formed on the inner surface of the cylinder body (13); The inner lining plate (14) includes a base plate (16) and a lining plate (17). The bottom surface of the base plate (16) is provided with a cross-shaped rib groove (18) corresponding to the staggered area of ​​the rib plate (15). The base plate (16) is clamped on the rib plate (15) through the rib groove (18). The lining plate (17) is installed on the surface of the base plate (16). The cylinder (13), the base plate (16) and the lining plate (17) are provided with a number of bolt holes, and are connected by fastening bolts passing through the bolt holes.

2. The high-stability ball mill cylinder according to claim 1, characterized in that: The surface of the liner plate (17) away from the substrate plate (16) is provided with two protruding ribs (19) extending along the length direction of the grinding cylinder (0), and the protruding ribs (19) form a push groove (20).

3. The high-stability ball mill cylinder according to claim 2, characterized in that: The substrate plate (16) has two positioning ridges (21) extending along the length of the grinding cylinder (0) on the side facing the liner plate (17). The liner plate (17) has a positioning groove (22) that matches the positioning ridge (21) at the position opposite to the positioning ridge (21).

4. The high-stability ball mill cylinder according to claim 3, characterized in that: The cross-sections of the positioning ridge (21) and the positioning groove (22) are semi-circular.

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