Lining plate mounting structure of wet mill

Abstract

The utility model provides a lining plate mounting structure of a wet mill, which comprises a plurality of lining plate groups distributed along the axial direction of a barrel of the wet mill, each lining plate group comprises a plurality of lining plates distributed along the circumferential direction of the barrel of the wet mill, and lifting strips are arranged on the lining plates. And the thickness of the lifting strip on the lining plate at the feeding end of the wet mill cylinder is greater than that of the lifting strip on the lining plate at the discharging end. Due to the fact that the abrasion degree of the lifting strip at the feeding end is larger than that of the lifting strip at the discharging end, the thickness of the lifting strip on the lining plate at the feeding end of the barrel of the wet mill is designed to be larger than that of the lifting strip on the lining plate at the discharging end, under the condition that the purchasing cost is not changed, the service life of the lining plate at the feeding end is prolonged, and the service life of the lining plate at the discharging end is prolonged. And the feeding end lining plate and the discharging end lining plate can achieve the service life at the same time, overall replacement is facilitated, and the adverse effect on a production plan caused by batch replacement is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of wet mill lining plates, in particular to a lining plate installation structure of a wet mill. Background Art

[0002] In the field of wet mills, the service life of the liner, as a key component, directly affects the overall operating efficiency and cost of the wet mill. However, in actual operation, the material first enters the feed end and is subjected to greater impact and friction, so the feed end lift bar and liner wear faster. The discharge end is mainly responsible for the output of the material, and the wear rate is relatively slow, which leads to the fact that after the feed end liner reaches its service life, the discharge end liner may still have a certain service life. However, since the traditional wet mill liner replacement method usually adopts an overall replacement, even if the discharge end liner can still be used, it needs to be replaced together, which leads to a large waste of reusable resources.

[0003] If only the lining at the feed end is replaced and the lining at the discharge end continues to be used, after the lining at the discharge end reaches its service life in a short period of time, the entire machine will need to be shut down to replace the lining at the discharge end. This will not only affect the production efficiency of the wet grinder, but may also have an adverse effect on the production plan. Utility Model Content

[0004] The utility model aims to provide a liner installation structure for a wet grinder, which can extend the service life of a whole set of liner inside the wet grinder without increasing the investment cost.

[0005] The utility model provides a liner installation structure of a wet mill, comprising a plurality of liner groups distributed along the axial direction of the wet mill cylinder, each liner group comprising a plurality of liner groups distributed along the circumferential direction of the wet mill cylinder, the liner plates are provided with lifting strips, and the thickness of the lifting strips on the liner plate at the feed end of the wet mill cylinder is greater than the thickness of the lifting strips on the liner plate at the discharge end.

[0006] Furthermore, the thickness of the lifting strip on the lining plate at the feed end of the wet mill is 160 mm, and the thickness of the lifting strip on the lining plate at the discharge end of the wet mill is 120 mm.

[0007] Furthermore, the thickness of the lifting strips in the plurality of liner groups gradually decreases from the feed end to the discharge end of the wet mill cylinder.

[0008] Furthermore, the lining plate group includes a plurality of first lining plate groups, a plurality of second lining plate groups and a transition lining plate group, the transition lining plate group is arranged between adjacent first lining plate groups and second lining plate groups, and the thickness of the lifting strip in the first lining plate group is greater than the thickness of the lifting strip in the second lining plate group.

[0009] Furthermore, the thickness of the lifting strips on the lining plates in the transition lining plate group gradually decreases from the first lining plate group side to the second lining plate group side.

[0010] Furthermore, the thickness of one end of the lifting strip on the transition liner group is the same as the thickness of the lifting strip on the first liner group, and the thickness of the other end of the lifting strip on the transition liner group is the same as the thickness of the lifting strip on the second liner group.

[0011] Furthermore, the lining plate includes a bottom plate and at least one lifting strip, the lifting strip includes a wear surface and a non-wear surface, and the top end of the wear surface is provided with a chamfer.

[0012] Furthermore, the bottom plate and the lifting bar are integrally formed.

[0013] Furthermore, the contact point between the bottom of the wear surface and the bottom plate and the contact point between the bottom of the non-wear surface and the bottom plate both adopt a rounded structure.

[0014] Furthermore, the lifting strip is an asymmetric structure, and the inclination of the wear surface is greater than the inclination of the non-wear surface.

[0015] The beneficial effect of the present technical solution is as follows: because the degree of wear of the lifting strip at the feed end is greater than that of the lifting strip at the discharge end, the present technical solution designs the thickness of the lifting strip on the lining plate at the feed end of the wet mill cylinder to be greater than the thickness of the lifting strip on the lining plate at the discharge end. Under the condition that the procurement cost remains unchanged, not only the service life of the lining plate at the feed end is improved, but also the service life of the lining plate at the feed end and the lining plate at the discharge end can be reached at the same time, which facilitates the overall replacement and avoids the adverse effect of replacement in batches on the production plan. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 The utility model is a schematic diagram of the arrangement structure of the middle liner plate inside the cylinder of the wet grinding machine.

[0018] Figure 2 The utility model is a side view of the arrangement structure of the middle liner plate inside the cylinder of the wet grinder.

[0019] Figure 3 It is a side view of the lining plate in the utility model.

[0020] Explanation of the reference numerals: 1 - cylinder; 2 - first lining plate group; 3 - second lining plate group; 4 - bottom plate; 5 - lifting bar; 6 - chamfer. DETAILED DESCRIPTION

[0021] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0024] Example 1

[0025] like Figure 1-Figure 2As shown, the utility model provides a liner installation structure of a wet mill, including a plurality of liner groups distributed along the axial direction of the wet mill cylinder 1, each liner group includes a plurality of liner plates distributed along the circumferential direction of the wet mill cylinder 1, each liner plate is installed on the inner wall of the cylinder by bolts, and each liner plate is provided with a lifting bar 6, and the extension direction of the lifting bar 6 is parallel to the axis of the cylinder 1. Since the particles at the feed end are large and the particles at the discharge end are very small, the lifting bar 6 on the liner plate at the feed end is more worn and the wear at the discharge end is less, so in this technical solution, the thickness of the lifting bar 6 on the liner plate at the feed end of the wet mill cylinder 1 is designed to be greater than the thickness of the lifting bar 6 on the liner plate at the discharge end. The thickness of the lifting bar 6 here refers to the distance from the top surface of the lifting bar 6 to the top surface of the liner plate.

[0026] In this embodiment, the lining plate group includes a plurality of first lining plate groups 2 and a plurality of second lining plate groups 3. The thickness of the lifting strips 6 on the lining plates in the first lining plate group 2 is 160 mm, and the thickness of the lifting strips 6 on the lining plates in the second lining plate group 3 is 120 mm.

[0027] Wherein: the lining plate includes an integrally formed bottom plate 4 and at least one lifting bar 6, the lifting bar 6 can be designed as a multi-stage trapezoidal structure to improve the lifting effect on materials and steel balls, the lifting bar 6 includes a wear surface and a non-wear surface, the top of the wear surface is provided with a chamfer 7, the contact between the bottom of the wear surface and the bottom plate 4 and the contact between the bottom of the non-wear surface and the bottom plate 4 both adopt a chamfered structure.

[0028] Example 2

[0029] Compared with Example 1, the technical feature of this embodiment is that a transition lining plate group is arranged between the adjacent first lining plate group 2 and the second lining plate group 3. Because there is a height difference between the adjacent first lining plate group 2 and the second lining plate group 3, the thickness of the lifting strip 6 on the lining plate in the transition lining plate group is designed to gradually decrease from one side to the other side. Specifically, the thickness of the lifting strip 6 at one end of the transition lining plate group is the same as the thickness of the lifting strip 6 on the first lining plate group 2, and the thickness of the lifting strip 6 at the other end of the transition lining plate group is the same as the thickness of the lifting strip 6 on the second lining plate group 3, so as to achieve a smooth transition between the first lining plate group 2 and the second lining plate group 3, and reduce the wear and deformation of the lifting strip 6 on the higher side at the junction.

[0030] Example 3

[0031] The technical feature that distinguishes this embodiment from Embodiment 1 is that the thickness of the lifting bars 6 in several liner groups gradually decreases from the feed end to the discharge end of the wet grinding mill cylinder 1, that is, the thickness of the end of the lifting bar 6 in the first liner group is the same as the thickness of the starting end of the lifting bar 6 in the second liner group, and so on.

[0032] Example 4

[0033] like Figure 3As shown, the distinguishing technical feature of this embodiment from the above embodiments is that, taking into account the asymmetry of liner wear, the lifting bar 6 can be set to an asymmetric structure, that is, the inclination of the wear surface is greater than the inclination of the non-wear surface, but the overall weight remains unchanged. This design helps to balance the wear and thus extend the service life of the liner.

[0034] The technical solution designs the thickness of the lifting strips on the lining plate at the feed end of the wet grinding machine barrel to be greater than the thickness of the lifting strips on the lining plate at the discharge end. Under the condition that the procurement cost remains unchanged, it not only improves the service life of the lining plate at the feed end, but also enables the lining plate at the feed end and the lining plate at the discharge end to reach the end of their service life at the same time, thus facilitating overall replacement and avoiding the adverse effect of replacement in batches on the production plan. This arrangement increases the service life of the entire set of lining plates.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A liner installation structure for a wet grinding machine, characterized in that: It comprises a plurality of liner groups distributed along the axial direction of the wet mill cylinder, each liner group comprises a plurality of liner groups distributed along the circumferential direction of the wet mill cylinder, the liner plates are provided with lifting bars, and the thickness of the lifting bars on the liner plates at the feed end of the wet mill cylinder is greater than the thickness of the lifting bars on the liner plates at the discharge end.

2. The liner plate mounting structure of the wet grinding machine according to claim 1, characterized in that: The thickness of the lifting strip on the lining plate at the feed end of the wet mill is 160 mm, and the thickness of the lifting strip on the lining plate at the discharge end of the wet mill is 120 mm.

3. The liner plate mounting structure of the wet grinding machine according to claim 1, characterized in that: The thickness of the lifting strips in the plurality of liner plate groups gradually decreases from the feed end to the discharge end of the wet mill cylinder.

4. The liner plate mounting structure of the wet grinding machine according to claim 1, characterized in that: The lining plate group includes a plurality of first lining plate groups, a plurality of second lining plate groups and a transition lining plate group. The transition lining plate group is arranged between adjacent first lining plate groups and second lining plate groups. The thickness of the lifting strip in the first lining plate group is greater than the thickness of the lifting strip in the second lining plate group.

5. The liner plate mounting structure of the wet grinding machine according to claim 4, characterized in that: The thickness of the lifting strip in the transition lining plate group gradually decreases from the first lining plate group side to the second lining plate group side.

6. The liner plate mounting structure of the wet grinding machine according to claim 5, characterized in that: The thickness of one end of the lifting strip on the transition lining plate group is the same as the thickness of the lifting strip on the first lining plate group, and the thickness of the other end of the lifting strip on the transition lining plate group is the same as the thickness of the lifting strip on the second lining plate group.

7. The liner plate mounting structure of the wet grinding machine according to claim 1, characterized in that: The lining plate comprises a bottom plate and at least one lifting strip, wherein the lifting strip comprises a wear surface and a non-wear surface, and a chamfer is arranged at the top end of the wear surface.

8. The liner plate mounting structure of the wet grinding machine according to claim 7, characterized in that: The bottom plate and the lifting strip are integrally formed.

9. The liner plate mounting structure of the wet grinding machine according to claim 7, characterized in that: The contact point between the bottom of the wear surface and the bottom plate and the contact point between the bottom of the non-wear surface and the bottom plate both adopt a rounded corner structure.

10. The liner plate mounting structure of the wet grinding machine according to claim 9, characterized in that: The lifting strip is an asymmetric structure, and the inclination of the wear surface is greater than the inclination of the non-wear surface.

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