Iron ore backfilling glue solid powder processing ball mill
Patent Information
- Application Number
- CN202522217935.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-21
- Publication Date
- 2026-09-18
- Estimated Expiration
- 2035-10-21
AI Technical Summary
[0003]球磨机在对胶固粉原理进行研磨时，衬板与研磨体的磨损是必然现象，因此，需要定期对衬板、研磨体进行更换，其中，衬板的安装是通过螺栓配合螺帽进行固定，螺栓需要从筒体内部安装，使其依次穿过衬板、筒体上的安装孔，再从筒体外部进行螺帽的安装，因此，衬板拆装时，需要内外人员协同操作，此过程中需要反复沟通、确认和对位，费时费力，极大的影响了球磨机维护工作效率，继而影响铁矿回填胶固粉的生产，基于此，提供一种铁矿回填胶固粉加工用球磨机
通过设置安装组件，可在筒体主体内部实现对内衬板的固定，无需与外部人员反复沟通、确认和对位，节省了大量时间，同时消除了因语言不清、信号误解导致的螺栓未拧紧或拧过紧等问题，提升了安装质量的一致性和可靠性。
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Figure CN224763188U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ball mill technology, specifically a ball mill for processing iron ore backfill cement powder. Background Technology
[0002] Iron ore backfill cementing powder is a new type of cementing material specifically used for mine backfilling. It can effectively solidify tailings and slag, playing an important role in improving mining safety and reducing environmental impact. In the production and processing of iron ore backfill cementitious powder, cement clinker, fluorogypsum, quicklime, and other activator raw materials need to be fed into a ball mill for grinding to ensure the sufficiency of subsequent reactions. The ball mill can grind lumpy or granular raw materials such as slag, steel slag, cement clinker, and gypsum to a specific fineness (usually a specific surface area ≥ 420 m²). 2 / kg), while the raw materials are constantly turned over, so that raw materials with different specific gravities (such as heavier steel slag and lighter gypsum) can achieve a high degree of uniform mixing at the microscale. In addition, under high-speed impact and friction, the grinding process will trigger mechanochemical reactions, such as causing the glassy structure of slag to break, exposing more reactive sites, and promoting the early reaction between activator and active components. This activation effect can effectively reduce the amount of activator used or improve the gel strength under the same ratio.
[0003] When ball mills grind cementitious powder, wear on the liners and grinding media is inevitable. Therefore, the liners and grinding media need to be replaced regularly. The liners are installed by bolts and nuts. The bolts need to be installed from the inside of the cylinder, passing through the mounting holes on the liners and cylinder in sequence, and then the nuts are installed from the outside of the cylinder. Therefore, the installation and removal of the liners requires the cooperation of personnel inside and outside the cylinder. This process requires repeated communication, confirmation and alignment, which is time-consuming and labor-intensive, greatly affecting the efficiency of ball mill maintenance and consequently affecting the production of cementitious powder for iron ore backfill. Based on this, a ball mill for processing cementitious powder for iron ore backfill is provided. Utility Model Content
[0004] The purpose of this utility model is to provide a ball mill for processing iron ore backfill cement powder in order to solve the problems mentioned above.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a ball mill for processing iron ore backfill cement powder, comprising a cylindrical body and an inner liner plate, wherein the inner liner plate is distributed on the inner side of the cylindrical body, and a convex mounting hole penetrating the outer side of the inner liner plate is provided on the inner side of the inner liner plate; an installation assembly is installed on the outer side of the cylindrical body and the inner side of the convex mounting hole, and the installation assembly is used to realize the installation and fixation of the inner liner plate on the inner side of the cylindrical body; The mounting components include a fixed cylinder, a fixed nut, and fastening bolts; The fixing column is fixed to the outside of the cylinder body and communicates with the inner cavity of the cylinder body; the fixing nut is fixed to the side of the fixing column away from the cylinder body. The fastening bolts pass through the convex mounting hole, the main body of the cylinder, and the fixed cylinder column from the inside of the inner liner plate and are threadedly connected to and tightened with the fixing nut to realize the installation and fixation of the inner liner plate. The fixing nut, which is fixedly set on the outside of the main body of the cylinder, is used to realize the tightening operation of the fastening bolts on the inside of the main body of the cylinder.
[0006] As a further embodiment of this utility model: the fastening bolt includes a circular top cap, a threaded portion, a first polygonal groove, and a second polygonal groove; The circular top cap and the screw part are connected and fixed in sequence, and the first polygonal groove and the second polygonal groove are respectively opened on the side of the circular top cap and the screw part that are far apart from each other; The first polygonal groove is used for inserting tools to tighten or loosen the circular top cap and the screw section as a whole; The second polygonal groove is used for inserting tools to loosen the entire circular cap and screw section.
[0007] As a further improvement of this utility model: the large-diameter groove diameter of the convex mounting hole matches the outer diameter of the circular top cap, and the depth of the large-diameter groove is greater than the height of the circular top cap.
[0008] As a further improvement of this utility model: the inner diameter of the fixed cylinder is matched with the outer diameter of the screw part, and the inner wall of the fixed cylinder has a smooth surface.
[0009] As a further improvement of this utility model: a plurality of convex mounting holes are provided on a single inner lining plate, and the distribution pattern of the convex mounting holes matches the distribution pattern of the fixed cylinder columns on the outer side of the cylinder body.
[0010] Compared with the prior art, the beneficial effects of this utility model are: By setting up installation components, the inner lining plate can be fixed inside the cylinder body without the need for repeated communication, confirmation and alignment with external personnel, saving a lot of time. At the same time, it eliminates problems such as bolts not being tightened or overtightened due to unclear language or misunderstanding of signals, improving the consistency and reliability of installation quality. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram showing the disassembled inner lining plate and mounting components of this utility model; Figure 3 This is a cross-sectional view of the inner lining plate and some parts of the mounting assembly of this utility model.
[0012] In the figure: 1. Main body of cylinder; 2. Inner liner plate; 3. Convex mounting hole; 4. Mounting component; 401. Fixed cylinder column; 402. Fixed nut; 403. Fastening bolt; 4031. Circular top cap; 4032. Screw part; 4033. First polygonal groove; 4034. Second polygonal groove. Detailed Implementation
[0013] 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.
[0014] Please see Figures 1-3 In this embodiment of the present invention, a ball mill for processing iron ore backfill cement powder includes a cylindrical body 1 and an inner liner 2. The inner liner 2 is distributed on the inner side of the cylindrical body 1, and a convex mounting hole 3 penetrating the outer side of the inner liner 2 is provided on the inner side of the inner liner 2. An installation component 4 is installed on the outer side of the cylindrical body 1 and the inner side of the convex mounting hole 3. The installation component 4 is used to realize the installation and fixation of the inner liner 2 on the inner side of the cylindrical body 1. Mounting assembly 4 includes a fixed cylinder 401, a fixed nut 402, and a fastening bolt 403; The fixing column 401 is fixed to the outside of the cylinder body 1 and communicates with the inner cavity of the cylinder body 1; the fixing nut 402 is fixed to the side of the fixing column 401 away from the cylinder body 1. The fastening bolt 403 passes through the convex mounting hole 3, the main body 1, and the fixed cylinder column 401 from the inside of the inner liner plate 2 and is threadedly connected to and tightened with the fixing nut 402 to realize the installation and fixation of the inner liner plate 2. The fixing nut 402, which is fixedly set on the outside of the main body 1, is used to realize the tightening operation of the fastening bolt 403 on the inside of the main body 1. The fastening bolt 403 includes a circular cap 4031, a threaded portion 4032, a first polygonal groove 4033, and a second polygonal groove 4034; The circular top cap 4031 and the screw part 4032 are connected and fixed in sequence, and the first polygonal groove 4033 and the second polygonal groove 4034 are respectively opened on the side of the circular top cap 4031 and the screw part 4032 that are far apart from each other. The first polygonal groove 4033 is used for inserting tools to tighten or loosen the circular top cap 4031 and the screw part 4032 as a whole; The second polygonal groove 4034 is used for inserting a tool to loosen the entire circular top cap 4031 and screw part 4032; The inner diameter of the fixed cylinder 401 matches the outer diameter of the screw part 4032, and the inner wall of the fixed cylinder 401 has a smooth surface.
[0015] In this embodiment, it should be noted that the main body 1 of the cylinder is the cylinder structure of a general-purpose ball mill on the market, and its operating principle is exactly the same as that of the existing ball mill. Therefore, the operation of the main body 1 of the cylinder will not be described in detail here. When installing the corresponding inner lining plate 2 inside the main body 1 of the cylinder, the operation method is as follows: First, the inner liner plate 2 is transported and placed inside the cylinder body 1 using external equipment (such as a forklift). (It should be noted that the cylinder body 1 is equipped with a corresponding manhole structure for workers to enter the cylinder body 1 with the inner liner plate 2. At the same time, it can also provide an outlet for unloading the grinding media. This structure is a conventional structure on the existing grinding machine cylinder, so it will not be described in detail here.) After that, the workers enter the cylinder body 1, move the inner liner plate 2 to the designated position, and align the convex mounting hole 3 on the inner liner plate 2 with the existing fixed cylinder column 401. Next, take the fastening bolt 403, and let the screw part 4032 pass through the convex mounting hole 3, the fixed cylinder 401 and contact the fixing nut 402 in sequence. Then, insert the tool into the first polygonal groove 4033 and screw it to make the fixing nut 402 threadedly connected and tightened, thus completing the installation and fixing of the inner liner plate 2. With the cooperation of the above-mentioned parts, the inner lining plate 2 can be fixed inside the main body 1 of the cylinder without the need for repeated communication, confirmation and alignment with external personnel, saving a lot of time and increasing the installation speed by 50% or even more. At the same time, it eliminates problems such as bolts not being tightened or being overtightened due to unclear language or misunderstanding of signals, and improves the consistency and reliability of installation quality. When it is necessary to disassemble the inner liner plate 2, the loosening operation can be completed independently inside the main body 1 of the cylinder. Alternatively, the loosening operation can be performed outside the main body 1 of the cylinder (e.g., if the first polygonal groove 4033 is corroded and cannot be loosened from the inside). A tool can be inserted into the second polygonal groove 4034 and screwed on. This disassembly operation is more flexible. In addition, when the fastening bolt 401 is rusted and cannot be loosened, the maintenance personnel can directly cut off the fixing nut 402 from the outside and cut off the fastening bolt 401 and the fixing nut 402 together. The fixing cylinder column 401 provides space for cutting the fixing nut 402, avoiding damage to the main body 1 of the cylinder during the cutting process. At the same time, the smooth surface of the fixing cylinder column 401 does not affect the removal of the remaining screw part 4032.
[0016] Please refer to this carefully. Figures 1-3The large-diameter groove of the convex mounting hole 3 matches the outer diameter of the circular top cap 4031, and the depth of the large-diameter groove is greater than the height of the circular top cap 4031.
[0017] In this embodiment: This structure allows the round cap 4031 to be recessed inside the convex mounting hole 3 after the fastening bolt 403 is tightened, so the round cap 4031 does not affect the grinding operation.
[0018] Please refer to this carefully. Figures 1-3 Multiple convex mounting holes 3 are provided on a single inner lining plate 2. The distribution pattern of the convex mounting holes 3 matches the distribution pattern of the fixed cylinder column 401 on the outside of the cylinder body 1.
[0019] In this embodiment, the installation of the inner liner 2 can be ensured by fixing a single inner liner 2 with multiple sets of mounting components 4.
[0020] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A ball mill for processing iron ore backfill cement powder, comprising a main body (1) and an inner lining plate (2), characterized in that, The inner lining plate (2) is distributed on the inner side of the cylindrical body (1), and the inner side of the inner lining plate (2) is provided with a convex mounting hole (3) that penetrates the outer side of the inner lining plate (2). An installation component (4) is installed on the outer side of the cylindrical body (1) and the inner side of the convex mounting hole (3). The installation component (4) is used to realize the installation and fixation of the inner lining plate (2) on the inner side of the cylindrical body (1). The mounting assembly (4) includes a fixed cylinder (401), a fixed nut (402), and a fastening bolt (403); The fixed cylinder (401) is fixed to the outside of the cylinder body (1) and communicates with the inner cavity of the cylinder body (1). The fixed nut (402) is fixed to the side of the fixed cylinder (401) away from the cylinder body (1). The fastening bolt (403) passes through the convex mounting hole (3), the main body of the cylinder (1), and the fixed cylinder column (401) from the inner side of the inner liner plate (2) and is threadedly connected to and tightened with the fixing nut (402) to realize the installation and fixing of the inner liner plate (2). The fixing nut (402) fixed on the outer side of the main body of the cylinder (1) is used to realize the tightening operation of the fastening bolt (403) on the inner side of the main body of the cylinder (1).
2. The ball mill for processing iron ore backfill cement powder according to claim 1, characterized in that, The fastening bolt (403) includes a round cap (4031), a threaded part (4032), a first polygonal groove (4033), and a second polygonal groove (4034). The circular top cap (4031) and the screw part (4032) are connected and fixed in sequence, and the first polygonal groove (4033) and the second polygonal groove (4034) are respectively opened on the side of the circular top cap (4031) and the screw part (4032) that are far away from each other; The first polygonal groove (4033) is used for inserting tools to tighten or loosen the entire circular cap (4031) and screw (4032); The second polygonal groove (4034) is used for inserting a tool to loosen the entire circular cap (4031) and screw (4032).
3. A ball mill for processing iron ore backfill cement powder according to claim 2, characterized in that, The large diameter of the convex mounting hole (3) matches the outer diameter of the circular top cap (4031), and the depth of the large diameter slot is greater than the height of the circular top cap (4031).
4. A ball mill for processing iron ore backfill cement powder according to claim 3, characterized in that, The inner diameter of the fixed cylinder (401) matches the outer diameter of the screw part (4032), and the inner wall of the fixed cylinder (401) has a smooth surface.
5. A ball mill for processing iron ore backfill cement powder according to claim 1, characterized in that, Multiple convex mounting holes (3) are provided on a single inner lining plate (2), and the distribution pattern of the convex mounting holes (3) matches the distribution pattern of the fixed cylinder column (401) on the outside of the cylinder body (1).