A semi-autogenous mill feed end outer ring liner

Abstract

This utility model discloses an outer ring liner for the feed end of a semi-autogenous grinding mill, fixedly connected to the feed end cover of the mill. It includes an end liner, a main lifting bar detachably connected to the middle of the end liner, and a secondary lifting bar fixedly connected to one side of the main lifting bar. The secondary lifting bar and the end liner are integrally formed. The outer surfaces of the secondary lifting bar, the end liner, and the main lifting bar are all covered with vulcanized rubber. Replacing the main lifting bar separately significantly reduces costs while ensuring wear resistance.

Description

Technical Field

[0001] This utility model specifically relates to the field of semi-autogenous grinding mill technology, and more specifically to an outer ring liner plate at the feed end of a semi-autogenous grinding mill. Background Technology

[0002] The outer ring liner is installed at the feed end of the semi-autogenous mill and is mainly used to lift steel balls and ore, protecting the mill. The detachable integral liner combines the main lifting bar, end liners, and auxiliary lifting bar. The main lifting bar is connected to the end liners and auxiliary lifting bars by bolts to form the detachable integral liner. In practical applications, the main lifting bar experiences more wear than the end liners and auxiliary lifting bars. Utility Model Content

[0003] The purpose of this utility model is to provide an outer ring liner for the feed end of a semi-autogenous mill, which is fixedly connected to the feed end cover of the semi-autogenous mill. The liner includes an end liner, a main lifting bar detachably connected to the middle of the end liner, and a secondary lifting bar fixedly connected to one side of the main lifting bar. The secondary lifting bar and the end liner are an integral structure. The outer surfaces of the secondary lifting bar, the end liner, and the main lifting bar are all covered with vulcanized rubber.

[0004] Preferably, the upper surface of the end liner is provided with a mating portion, and the lower surface of the main lifting bar is provided with a positioning portion that cooperates with the mating portion.

[0005] Preferably, the docking part and the positioning part adopt an interlocking structure.

[0006] Preferably, the mating part is a protrusion and the positioning part is a slot.

[0007] Preferably, the main lifting bar includes: two first hard plates and vulcanized rubber wrapped around the outside of the first hard plates.

[0008] Preferably, the two first Harda plates have different thicknesses.

[0009] Preferably, the first hard plate has a material-facing surface, and the material-facing surface and the upper surface of the end liner have a facing angle.

[0010] Preferably, both sides of the two first hard plates are provided with reinforcing ribs.

[0011] Preferably, the secondary lifting strip includes: a second hard plate and vulcanized rubber wrapped around the outside of the second hard plate.

[0012] Preferably, the height of the main lifting bar is higher than the height of the secondary lifting bar.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] Replacing the main lift bar separately significantly reduces costs while ensuring wear resistance.

[0015] 2. By setting a receiving surface on the first welding plate, the phenomenon of the steel ball being thrown too high by the lifting bar is reduced, causing the steel ball to not work and instead hit the cylinder liner plate in vain.

[0016] 3. The two first hard plates on the main lifting bar are reinforced with ribs on both sides to ensure the strength of the main lifting bar.

[0017] 4. The distance between the secondary lifting bar and the main lifting bar is less than or equal to the size of the steel ball. During use, the steel ball will be locked between the main lifting bar and the secondary lifting bar, thereby protecting the end liner. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the outer ring liner at the feed end of the semi-autogenous mill in this utility model;

[0019] Figure 2 This is an exploded view of the overall structure of the outer ring liner at the feed end of the semi-autogenous mill in this utility model;

[0020] In the diagram: 1. End liner; 101. Connecting part; 2. Main lifting bar; 3. Secondary lifting bar; 4. First lifting plate; 401. Material receiving surface; 5. Second lifting plate. Detailed Implementation

[0021] 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. Example 1

[0022] Please see Figure 1-2 In this embodiment of the utility model, an outer ring liner plate for the feed end of a semi-autogenous mill is fixedly connected to the end cover of the feed end of the semi-autogenous mill, comprising: an end liner plate 1, a main lifting bar 2 detachably connected in the middle of the end liner plate 1, the main lifting bar 2 having flat head bolt holes, and the main lifting bar 2 and the end liner plate 1 being fixed to the outer ring liner plate for the feed end of the semi-autogenous mill by bolts.

[0023] The main lifting strip 2 includes: two first hard plates 4 and vulcanized rubber wrapped around the outside of the first hard plates 4.

[0024] During the processing of the main lifting bar 2, it drives the two first hard plates 4 to be fixed and then adds rubber to the vulcanizing machine to form vulcanized rubber wrapped around the outside of the first hard plates 4.

[0025] The two first Harda plates 4 have different thicknesses. Since the thickness of a Harda plate is generally no more than 100 mm, the thickness is greater than 100 mm after the two Harda plates are stacked, thereby enhancing the overall wear resistance.

[0026] The first hard plate 4 is provided with a receiving surface 401, and the receiving surface 401 and the upper surface of the end liner 1 are provided with a facing angle. This can prevent the lifting bar from throwing the steel ball too high, causing the steel ball to not work, and also prevent it from hitting the cylinder liner without working.

[0027] Among them, the main lifting bar 2 has reinforcing ribs on both sides of the first hard plate 4 to ensure the strength of the main lifting bar 2.

[0028] The end liner 1 is fixedly connected to the auxiliary lifting bar 3 on one side of the main lifting bar 2. The functions of the main lifting bar 2 and the auxiliary lifting bar 3 are to lift the steel ball and lift the material.

[0029] The secondary lifting strip 3 and the end liner 1 are an integral structure. The secondary lifting strip 3 includes: a second hard plate 5 and vulcanized rubber wrapped around the outside of the second hard plate 5.

[0030] When processing the end liner 1 and the auxiliary lifting bar 3, a steel plate is required as a base. A second hard plate 5 is welded onto the steel plate, and the second hard plate 5 is set perpendicular to the steel plate.

[0031] After the second hard plate 5 is welded and fixed to the steel plate, a vulcanizing machine is added to form a vulcanized rubber that wraps around the steel plate and the outside of the second hard plate 5.

[0032] The distance between the secondary lifting bar 3 and the main lifting bar 2 is less than or equal to the size of the steel ball. During use, the steel ball will be stuck between the main lifting bar 2 and the secondary lifting bar 3, thereby achieving the purpose of protecting the end liner 1.

[0033] The height of the main lifting bar 2 is higher than that of the auxiliary lifting bar 3. This ensures that the main lifting bar 2 is the primary lifting steel ball and material lifting component. Therefore, the wear of the main lifting bar 2 is more severe than that of the end liner 1 and the auxiliary lifting bar 3. This type of liner allows for the replacement of the main lifting bar separately, significantly reducing costs while ensuring wear resistance.

[0034] The main lifting bar 2 is fixedly connected to the end cover of the feed end by bolts, which drives the end liner 1 and the auxiliary lifting bar 3. Example 2

[0035] To improve the fixing effect of the outer ring liner, the upper surface of the end liner 1 is provided with a mating part 101, and the lower surface of the main lifting bar 2 is provided with a positioning part that cooperates with the mating part 101. The mating part 101 and the positioning part adopt an interlocking structure.

[0036] In this design, the mating part 101 uses a protrusion, and the positioning part uses a slot that mates with the protrusion. Alternatively, the mating part 101 can use a slot, and the positioning part can use a protrusion that mates with the slot.

[0037] By cooperating with the positioning part and the docking part 101, the fixing effect between the main lifting bar 2 and the end liner 1 is improved, and the overall connection strength is increased.

[0038] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0039] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A semi-autogenous mill feed end outer shell liner fixedly attached to a semi-mill feed end head, characterised in that, include: An end liner is provided, with a main lifting bar detachably connected to the middle of the end liner. An auxiliary lifting bar is fixedly connected to one side of the main lifting bar. The auxiliary lifting bar and the end liner are an integral structure. The outer surfaces of the auxiliary lifting bar, the end liner, and the main lifting bar are all covered with vulcanized rubber.

2. A feed end outer shell liner for a semi-autogenous mill according to claim 1, characterised in that, The upper surface of the end liner is provided with a docking part, and the lower surface of the main lifting bar is provided with a positioning part that cooperates with the docking part.

3. A feed end outer shell liner for a semi-autogenous mill according to claim 2, characterised in that, The docking part and the positioning part adopt an interlocking structure.

4. A feed end outer shell liner for a semi-autogenous mill as claimed in claim 3, characterised in that, The docking part uses a protrusion, and the positioning part uses a slot.

5. A feed end outer shell liner for a semi-autogenous mill according to claim 1, characterised in that, The main lifting bar includes: two first hard plates and vulcanized rubber wrapped around the outside of the first hard plates.

6. A feed end outer shell liner for a semi-autogenous mill as claimed in claim 5, characterised in that, The two First Hardcore boards have different thicknesses.

7. A feed end outer shell liner for a semi-autogenous mill according to claim 6, characterised in that, The first hard plate has a material-facing surface, and the material-facing surface and the upper surface of the end liner have a facing angle.

8. A feed end outer shell liner for a semi-autogenous mill according to claim 6, characterised in that, Both sides of the first hardened plates are equipped with reinforcing ribs.

9. A feed end outer shell liner for a semi-autogenous mill according to claim 6, characterised in that, The secondary lifting strip includes: a second hard plate and vulcanized rubber wrapped around the outside of the second hard plate.

10. A feed end outer shell liner for a semi-autogenous mill according to claim 1, characterised in that, The height of the main lifting bar is higher than the height of the secondary lifting bar.

Images