Process equipment suitable for protecting large flakes of native graphite of high-mud-content ore
By introducing high-frequency desludge and dehydration screens into the process equipment of scale graphite ore, fine-grained materials are pre-separated, and combined with a pointed conical slurry pool and a interrupted tower mill, the material column blockage in high-silt ore equipment is solved. The problem of roller surface wear has achieved stable and efficient operation of the equipment and effective protection of scale graphite.
Patent Information
- Application Number
- CN202421143108.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-24
- Publication Date
- 2025-01-14
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In the flake graphite ore with high mud ore, existing process equipment is prone to problems such as material column blockage and material adhesion between roller joints, resulting in low ore processing volume and rapid wear of roller surfaces, affecting production sustainability.
A process equipment including high-frequency desludge screen, high-frequency desiccant screen, slurry tank and high-pressure roller mill is designed. By pre-separating fine-grained materials, the stable operation of the high-pressure roller mill is ensured and wet materials on the roller surface are avoided. and wear, a pointed conical slurry tank and a discontinuous tower mill are used to achieve large scale protection of ore.
It effectively avoids blockage of material columns and wear of roller surfaces, ensures stable and efficient operation of the equipment, improves the crushing efficiency and roller surface life of scale graphite, and ensures the sustainability of production.
Smart Images
Figure CN222343106U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a process device suitable for protecting large scale flakes of primary graphite in high-mud content ores. Background Art
[0002] Crystalline graphite, also known as flake graphite, is recognized as a graphite resource with the highest value. Its raw materials and deep-processed products have excellent properties such as high temperature resistance, electrical and thermal conductivity, lubricity, and easy processing and molding. They are widely used in important fields such as metallurgy, machinery, chemical industry, and aviation. Crystalline graphite has good floatability, and high-grade concentrate products can be obtained by flotation. The larger the flake size of the concentrate product, the greater its market and industrial application value. In order to protect large flakes, the unique grain boundary dissociation crushing principle of the high-pressure roller mill has been applied to the crushing of flake graphite ore. Many studies have shown the superiority of grain boundary dissociation in protecting large flakes of native graphite. The unique high-pressure roller crushing of the high-pressure roller mill determines that it has certain requirements for feeding. The most ideal material should be lump ore, and it has high requirements for water content. Generally speaking, it requires small viscosity resistance between ore particles to achieve uniform and continuous feeding.
[0003] However, in actual industrial production, especially in flake graphite mines with more clay gangue minerals, process equipment often encounters problems such as blockage of material columns and material sticking between rollers, resulting in a series of problems such as low crushing capacity and excessive wear of roller surfaces. More seriously, it affects the normal and continuous production of enterprises, bringing certain resistance to the promotion of new technologies in my country's graphite mining industry. Utility Model Content
[0004] The utility model aims to provide a process equipment suitable for protecting large scale flakes of primary graphite in high-mud content ores, so as to solve a series of problems such as material blockage and excessive wear of roller surface occurring in the ultra-fine crushing process of flake graphite ores with high mud content.
[0005] The above purpose is achieved through the following technical solutions:
[0006] A process equipment suitable for protecting large scales of primary graphite in high-mud content ores, comprising a silo, a vibrating feeder, a belt conveyor 1, a high-frequency desludging screen, a belt conveyor 2, a high-pressure roller mill, a pulping tank 1, a horizontal pump 1, a high-frequency dewatering screen, a pulping tank 2, a horizontal pump 2, a first-stage tower mill, a first-stage flotation machine, a third horizontal pump, a second-stage tower mill, and a second-stage flotation machine, wherein the high-frequency dewatering screen is connected to the pulping tank 2, the high-pressure roller mill is connected to the high-frequency dewatering screen, and a powerful agitator is installed in the pulping tank 1.
[0007] Furthermore, the first pulping tank and the second pulping tank are both pointed cone-shaped pulping tanks.
[0008] Furthermore, the mesh size of the high-frequency desludging screen is 5-15 mm.
[0009] Furthermore, the mesh size of the high-frequency dehydration screen is 1.5-5 mm.
[0010] Beneficial effects of the utility model:
[0011] The utility model aims at flaky graphite ores with too high mud content and serious vein weathering. By setting a high-frequency desludging screen to pre-separate some fine particles (mud) materials, the utility model continuously coarses the high-pressure roller feed to ensure the stable and continuous operation of the high-pressure roller mill and the best grain boundary dissociation effect of "laminated crushing". At the same time, it avoids a series of problems such as wet material adhesion to the roller surface and excessive wear. The overall equipment has high working efficiency and is continuously stable. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Attached Figure 1 It is a structural schematic diagram of the utility model.
[0013] Attached Figure 2 It is a structural schematic diagram of a pulping tank of the utility model.
[0014] Attached Figure 3 Yes Figure 2 Left view of .
[0015] Attached Figure 4 Yes Figure 2 Top view of the .
[0016] In the attached figure: 1: silo, 2: vibrating feeder; 3: belt conveyor 1; 4: high-frequency desludging screen; 5: belt conveyor 2; 6: high-pressure roller mill; 7: pulping tank 1; 8: horizontal pump 1; 9: high-power agitator; 10: high-frequency dewatering screen; 11: horizontal pump 2; 12: first-stage tower mill; 13: first-stage flotation machine; 14: horizontal pump 3; 15: second-stage tower mill; 16: second-stage flotation machine; 17: second pulping tank. DETAILED DESCRIPTION
[0017] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment 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.
[0018] The utility model provides a process equipment suitable for protecting large scale flakes of primary graphite in high mud content ores, such as the attached Figure 1As shown, it includes: a silo 1, a vibrating feeder 2, a belt conveyor 1 3, a high-frequency desludging screen 4, a belt conveyor 2 5, a high-pressure roller mill 6, a pulping tank 1 7, a horizontal pump 1 8, a high-frequency dewatering screen 10, a pulping tank 2 17, a horizontal pump 2 11, a first-stage tower mill 12, a first-stage flotation machine 13, a horizontal pump 3 14, a second-stage tower mill 15, and a second-stage flotation machine 16, wherein the high-frequency dewatering screen 10 is connected to the pulping tank 2 17, the high-pressure roller mill 6 is connected to the high-frequency dewatering screen 10, and a powerful agitator 9 is installed in the pulping tank 1 7.
[0019] The mesh size of the high-frequency desludging screen is 5-15 mm.
[0020] The mesh size of the high-frequency dehydration screen is 1.5-5 mm.
[0021] The pulping tank 1 7 and the pulping tank 2 17 have the same structure. Figure 2-4 As shown, all of them are pointed cone-shaped pulping tanks.
[0022] Working principle:
[0023] The muddy ore is fed to the high-frequency desludging screen 4 through the vibrating feeder 2 for pre-screening, and the material on the high-frequency desludging screen 4 is fed to the high-pressure roller mill 6 for ultra-fine crushing;
[0024] The material discharged from the high-pressure roller mill 6 is pulped and fed to the high-frequency dewatering screen 10 for screening, and the material on the screen is returned to the high-pressure roller mill 6; the material under the high-frequency desludging screen 4 and the high-frequency dewatering screen 10 is mixed to form a mixed ore pulp;
[0025] The mixed ore pulp is fed into a first stage tower mill 12 for open circuit grinding, the overflow of the first stage tower mill 12 is fed into a first stage flotation machine 13, the tailings of the first stage flotation machine 13 are fed into a second stage tower mill 15, and the discharge of the second stage tower mill 15 is fed into a second stage flotation machine 16;
[0026] The first roughing foam and the second roughing foam are fed to the subsequent cleaning, and the tailings of the second roughing flotation machine 16 are fed to the scavenging selection.
[0027] The first-stage tower mill grinding and the second-stage tower mill grinding are open circuit grinding, the overflow fineness of the first-stage tower mill grinding is -0.15mm, accounting for 35%-55%, and the overflow fineness of the second-stage tower mill grinding is -0.15mm, accounting for 50%-70%.
[0028] The ore slurry is fed into the two-stage tower mill by a horizontal pump.
[0029] The utility model separates part of the fine mud materials in the raw ore in advance through process equipment, ensures the stable operation of the crushing section of the high-pressure roller mill, and protects the large scales of the original graphite of the ore and avoids the loss of tailings of useful minerals through two-stage intermittent tower mill open-circuit grinding, which is conducive to giving full play to the superiority of the high-pressure roller mill in the field of graphite crushing.
[0030] The utility model separates the muddy part in the ore in advance, continuously releases the coarse high-pressure roller feed to ensure the continuous feeding of the high-pressure roller mill to achieve the best dissociation effect, the pointed cone slurry pool meets the stable transportation of coarse-grained ore pulp, the high-pressure roller mill ultra-fine crushing and the two-stage indirect tower mill open-circuit grinding ensure the effective protection of large scales in the primary ore and the maximum dissociation degree of useful minerals.
[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.
Claims
1. A process equipment suitable for protecting large scale flakes of primary graphite in high mud content ores, characterized in that: The invention comprises a silo (1), a vibrating feeder (2), a belt conveyor 1 (3), a high-frequency desludging screen (4), a belt conveyor 2 (5), a high-pressure roller mill (6), a pulping tank 1 (7), a horizontal pump 1 (8), a high-frequency dewatering screen (10), a pulping tank 2 (17), a horizontal pump 2 (11), a first-stage tower mill (12), a first-stage flotation machine (13), a third horizontal pump (14), a second-stage tower mill (15), and a second-stage flotation machine (16), wherein the high-frequency dewatering screen (10) is connected to the pulping tank 2 (17), the high-pressure roller mill (6) is connected to the high-frequency dewatering screen (10), and a powerful agitator (9) is installed in the pulping tank 1 (7).
2. The process equipment for protecting large scale graphite flakes of high-mud content ores according to claim 1 is characterized in that: The pulping tank 1 (7) and the pulping tank 2 (17) are both pointed cone-shaped pulping tanks.
3. The process equipment for protecting large scale graphite flakes of high mud-containing ores according to claim 1 is characterized in that: The mesh size of the high-frequency desludging screen (4) is 5-15 mm.
4. The process equipment for protecting large scale graphite flakes of high mud content ores according to claim 1 is characterized in that: The mesh size of the high-frequency dehydration screen (10) is 1.5-5 mm.