Bauxite ore breaking device

Abstract

This utility model relates to the technical field of ore crushing, and in particular to a bauxite crushing device, including a crushing assembly. The crushing assembly includes a crushing box; a discharge hopper fixedly connected to the bottom of the crushing box; support legs disposed at the bottom of the discharge hopper; and a discharge valve fixedly connected to the discharge port of the discharge hopper. A feed hopper is provided at the top of the crushing assembly, and a vibrating screen assembly is provided at the top of the feed hopper. The vibrating screen assembly includes a vibrating screen. Bauxite is conveyed to the vibrating screen assembly via a feed conveyor belt. The vibrating screen assembly uses a vibrating screen and a vibrator to achieve particle size classification before feeding. Oversized materials are automatically separated by a discharge conveyor belt to ensure that the feed particle size is ≤220mm. Excessively large bauxite is discharged through the discharge conveyor belt, thus achieving particle size classification and preventing larger particles of bauxite from entering the crushing device, reducing the risk of equipment overload.

Description

Technical Field

[0001] This utility model relates to the technical field of ore crushing, and in particular to a bauxite crushing device. Background Technology

[0002] Bauxite, also known as alumina or bauxite ore, is mainly composed of aluminum oxide. It is a hydrated aluminum oxide containing impurities and is a general term for various hydrous aluminum oxide ores from very different geological sources, such as diaspore, boehmite, and gibbsite. Bauxite is an earthy mineral, white or grayish-white, turning brownish-yellow or light red due to iron content. It is opaque, brittle, extremely difficult to melt, insoluble in water, but soluble in sulfuric acid and sodium hydroxide solutions. It is mainly used for aluminum smelting and refractory material production. Before processing bauxite, it often needs to be crushed. The equipment used in the crushing process is called a crusher. When using a crusher, the bauxite ore needs to be poured into the crusher intermittently.

[0003] For example, Chinese utility model patent CN220160094U discloses a bauxite crushing device, including a shell and a crushing shaft. A feed inlet is fixedly connected to the upper part of the shell, and a small particle outlet is fixedly connected to the lower part of the shell. A support frame is fixedly connected to the outer side of the shell, and a fixing block is fixedly connected to the inner wall of the shell. A first bearing is fixedly connected inside the first fixing block, and a drive shaft is rotatably connected to the center of the first bearing. A drive gear is fixedly connected to the other end of the drive shaft, and the other side of the drive gear is fixedly connected to the output shaft of a drive motor. The bottom wall of the drive motor is fixedly connected to the inner wall of the shell. The shell contains a first partition and a second partition. A partition is located between the drive shaft and the first crushing shaft, and a second partition is located between the first crushing shaft and the first fixed block. The end of the drive shaft near the first fixed block passes through the outer wall of the housing. An eccentric block is fixedly connected to the shaft end face of the portion of the drive shaft that passes through the outer wall of the housing. A third bearing is fixedly connected to the other end of the eccentric block. A movable rod is movably connected to the other end of the third bearing. An eccentric bearing is movably connected to the other end of the movable rod. A sliding plate is fixedly connected to the other end of the eccentric bearing. The other end of the sliding plate is movably connected to the inner wall of the housing via a hinge. A large particle discharge port is opened on the outer side of the housing. The large particle discharge port is located directly in front of the sliding plate. A large particle collection box is fixedly connected below the large particle discharge port.

[0004] In the existing technology, bauxite is added directly through the feed inlet, and the particle size must strictly meet the equipment requirements (not exceeding 220mm). Exceeding the limit will lead to equipment overload, accelerated wear of parts, or even damage. Utility Model Content

[0005] The purpose of this invention is to provide a bauxite crushing device to solve the problems mentioned in the background art.

[0006] The technical solution adopted in this utility model is:

[0007] A bauxite ore crushing device includes a crushing assembly, the crushing assembly comprising a crushing box; a discharge hopper fixedly connected to the bottom of the crushing box; support legs disposed at the bottom of the discharge hopper; and a discharge valve fixedly connected to the discharge port of the discharge hopper.

[0008] The crushing assembly has a feed hopper at its top, and a vibrating screen assembly at its top. The vibrating screen assembly includes a vibrating screen mesh; a first vibrating bracket, fixedly connected to the bottom of one end of the vibrating screen mesh, with its bottom end connected to the top of the feed hopper; a second vibrating bracket, fixedly connected to the bottom of the other end of the vibrating screen mesh, with its bottom end connected to the top of the feed hopper; a vibrating frame, installed on the top of the vibrating screen mesh; and a vibrator, fixedly connected to the top of the vibrating frame.

[0009] One end of the vibrating screen is provided with a feeding conveyor belt, and the other end of the vibrating screen is provided with a discharging conveyor belt;

[0010] A secondary crushing component is provided on one side of the feed hopper.

[0011] Optionally, the interior of the feed hopper has a bucket-shaped structure.

[0012] Optionally, the vibrating screen is installed at a 15-degree clockwise angle relative to the horizontal direction.

[0013] Optionally, the vibration support includes a support rod; a support foot fixedly connected to the bottom end of the support rod and connected to the top of the feed hopper; a spring seat fixedly connected to the top end of the support rod; and a support spring fixedly connected to the top of the spring seat, with its top end connected to the bottom of the vibrating screen.

[0014] Optionally, the support leg is connected to the top of the feed hopper by a snap-fit ​​connection.

[0015] Optionally, the second vibration bracket includes a second support leg, the bottom of which is connected to the top of the feed hopper; and a second support spring, which is fixedly connected to the top of the second support leg and the top of which is connected to the bottom of the vibrating screen.

[0016] Optionally, the second support leg is connected to the top of the feed hopper by a snap-fit ​​connection.

[0017] Optionally, the secondary crushing assembly includes a discharge hopper fixedly connected to the outer wall of the feed hopper; a crushing motor installed on one side of the discharge hopper; a crushing shaft rotatably connected to the inside of the discharge hopper; and crushing blades disposed on the outer wall of the crushing shaft.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] By installing a vibrating screen assembly at the top of the feed hopper, with a feed conveyor belt at the feed end and a discharge conveyor belt at the other end, bauxite ore is conveyed to the vibrating screen assembly via the feed conveyor belt. The vibrating screen assembly uses a vibrating screen and a vibrator to achieve particle size classification before feeding. Oversized materials are automatically separated by the discharge conveyor belt to ensure that the feed particle size is ≤220mm. Excessively large bauxite ore is discharged via the discharge conveyor belt, achieving particle size classification and preventing larger particles of bauxite ore from entering the crushing device, thus reducing the risk of equipment overload. In addition, by setting up a secondary crushing assembly, large particles of ore are crushed to achieve the purpose of secondary crushing, allowing large particles of ore to be decomposed into smaller particles for recycling. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of this application;

[0022] Figure 2 This is a schematic diagram of the structure of the vibrating screen assembly in this application;

[0023] Figure 3 This is a structural schematic diagram of the vibration support 1 in this application.

[0024] Figure 4 This is a schematic diagram of the structure of the vibration support II in this application;

[0025] Figure 5 This is a schematic diagram of the secondary crushing component in this application.

[0026] Figure label:

[0027] 10. Crushing assembly; 11. Crushing box; 12. Discharge hopper; 13. Support legs; 14. Discharge valve;

[0028] 20. Feed hopper;

[0029] 30. Vibrating screen assembly; 31. Vibrating screen mesh; 32. Vibrating support one; 321. Support rod; 322. Support foot one; 323. Spring seat; 324. Support spring one; 33. Vibrating support two; 331. Support foot two; 332. Support spring two; 34. Vibrating frame; 35. Exciter;

[0030] 40. Feed conveyor belt;

[0031] 50. Discharge conveyor belt;

[0032] 60. Secondary crushing component; 61. Discharge hopper; 62. Crushing motor; 63. Crushing shaft; 64. Crushing blades. Detailed Implementation

[0033] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0035] Given that in the current technology, when adding bauxite, the bauxite is added directly through the feed inlet, and the particle size must strictly meet the equipment requirements (not exceeding 220mm), exceeding the limit will lead to equipment overload, accelerated wear of components, or even damage.

[0036] like Figure 1-5 As shown, this utility model embodiment provides a bauxite crushing device, including: a crushing component 10, the crushing component 10 including a crushing box 11; a discharge hopper 12, fixedly connected to the bottom of the crushing box 11; a support leg 13, disposed at the bottom of the discharge hopper 12; and a discharge valve 14, fixedly connected to the discharge port of the discharge hopper 12.

[0037] The crushing box 11 adopts a jaw crushing structure, which crushes bauxite in multiple stages through high-speed rotating hammers. The crushed material is discharged through the discharge valve 14 at the bottom of the discharge hopper 12.

[0038] The crushing assembly 10 is provided with a feed hopper 20 at the top, and a vibrating screen assembly 30 is provided at the top of the feed hopper 20. The vibrating screen assembly 30 includes a vibrating screen 31; a first vibrating bracket 32, which is fixedly connected to the bottom of one end of the vibrating screen 31 and whose bottom end is connected to the top of the feed hopper 20; a second vibrating bracket 33, which is fixedly connected to the bottom of the other end of the vibrating screen 31 and whose bottom end is connected to the top of the feed hopper 20; a vibrating frame 34, which is installed on the top of the vibrating screen 31; and a vibrator 35, which is fixedly connected to the top of the vibrating frame 34.

[0039] The vibrating screen 31 has a 220mm aperture. The bottom of the vibrating screen 31 is installed above the feed hopper 20 via vibrating support 1 32 and vibrating support 2 33. Vibrating support 1 32 and vibrating support 2 33 provide elastic support for the vibrating screen 31. The vibrator 35 uses the rotation of the eccentric block to generate centrifugal force, forming directional vibration, so that the vibrating frame 34 evenly transmits the excitation force to the vibrating screen 31. Through the periodic excitation force generated by the vibrator 35, the screen generates high-frequency vibration. The bauxite ore is layered under the action of vibration. The qualified particle size (≤220mm) falls into the feed hopper 20 through the screen holes, and the oversized material moves along the screen surface to the discharge end.

[0040] One end of the vibrating screen 31 is provided with a feeding conveyor belt 40, and the other end of the vibrating screen 31 is provided with a discharging conveyor belt 50.

[0041] Bauxite ore enters the vibrating screen 31 via the feed conveyor belt 40. The vibrating screen 31 screens the qualified bauxite ore to the feed hopper 20 below, while the unqualified bauxite ore is screened to the discharge conveyor belt 50 and discharged through the discharge conveyor belt 50.

[0042] A secondary crushing assembly 60 is provided on one side of the feed hopper 20. The secondary crushing assembly 60 includes a discharge hopper 61, which is fixedly connected to the outer wall of the feed hopper 20; a crushing motor 62, which is installed on one side of the discharge hopper 61; a crushing shaft 63, which is rotatably connected to the inside of the discharge hopper 61; and crushing blades 64, which are disposed on the outer wall of the crushing shaft 63.

[0043] After screening, large ore particles enter the discharge hopper 61 through the vibrating screen 31. Then, by starting the crushing motor 62, the crushing motor 62 drives the crushing shaft 63 to rotate, and the crushing blades 64 on the crushing shaft 63 crush the large ore particles (by the crushing blades 64 shearing the ore against the inner wall of the discharge hopper 61, the large ore particles can be crushed), achieving the purpose of secondary crushing, so that the large ore particles can be decomposed into small particles for recycling.

[0044] Furthermore, the feed hopper 20 has an internal bucket-shaped structure, which facilitates the guidance of qualified ore into the crushing box 11 for crushing.

[0045] Furthermore, the vibrating screen 31 is installed at a 15-degree clockwise angle relative to the horizontal direction, which facilitates ore screening.

[0046] Furthermore, the first vibration bracket 32 ​​includes a support rod 321; a first support foot 322, fixedly connected to the bottom end of the support rod 321 and connected to the top of the feed hopper 20; a spring seat 323, fixedly connected to the top end of the support rod 321; a first support spring 324, fixedly connected to the top of the spring seat 323, with its top end connected to the bottom of the vibrating screen 31; the second vibration bracket 33 includes a second support foot 331, with its bottom connected to the top of the feed hopper 20; a second support spring 332, fixedly connected to the top of the second support foot 331, with its top end connected to the bottom of the vibrating screen 31; the first support spring 324 and the second support spring 332 provide elastic support and buffer vibration impact.

[0047] Furthermore, support leg 1 322 is connected to the top of the feed hopper 20 by a snap-fit ​​connection, and support leg 2 331 is connected to the top of the feed hopper 20 by a snap-fit ​​connection. The snap-fit ​​connection method facilitates disassembly and installation.

[0048] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A bauxite crushing device, comprising: Crushing assembly, the crushing assembly comprising: Crushing box; The discharge hopper is fixedly connected to the bottom of the crushing box; Support legs are provided at the bottom of the discharge hopper; A discharge valve is fixedly connected to the discharge port of the discharge hopper; The crushing assembly is characterized in that a feed hopper is provided at the top, and a vibrating screen assembly is provided at the top of the feed hopper, the vibrating screen assembly comprising: Vibrating screen; Vibration bracket 1 is fixedly connected to the bottom of one end of the vibrating screen, and the bottom end is connected to the top of the feed hopper; Vibration bracket two is fixedly connected to the bottom of the other end of the vibrating screen, and its bottom end is connected to the top of the feed hopper; A vibrating frame is installed on top of the vibrating screen. The vibrator is fixedly connected to the top of the vibration frame; One end of the vibrating screen is provided with a feeding conveyor belt, and the other end of the vibrating screen is provided with a discharging conveyor belt; A secondary crushing component is provided on one side of the feed hopper.

2. The bauxite crushing device according to claim 1, characterized in that, The inside of the feed hopper has a bucket-shaped structure.

3. The bauxite crushing device according to claim 1, characterized in that, The vibrating screen is installed at a 15-degree clockwise angle relative to the horizontal direction.

4. The bauxite crushing device according to claim 1, characterized in that, The vibration support includes: Support rod; Support leg one is fixedly connected to the bottom end of the support rod and connected to the top of the feed hopper; A spring seat is fixedly connected to the top end of the support rod; A support spring is fixedly connected to the top of the spring seat, and its top end is connected to the bottom of the vibrating screen.

5. The bauxite crushing device according to claim 4, characterized in that, The support leg is connected to the top of the feed hopper by a snap-fit ​​mechanism.

6. The bauxite crushing device according to claim 1, characterized in that, The second vibration support includes: The second support leg is connected at its bottom to the top of the feed hopper; The second support spring is fixedly connected to the top of the second support foot, and its top end is connected to the bottom of the vibrating screen.

7. The bauxite crushing device according to claim 6, characterized in that, The second support leg is connected to the top of the feed hopper by a snap-fit ​​connection.

8. The bauxite crushing device according to claim 1, characterized in that, The secondary crushing assembly includes: a discharge hopper, fixedly connected to the outer wall of the feed hopper; a crushing motor, installed on one side of the discharge hopper; a crushing shaft, rotatably connected to the inside of the discharge hopper; and crushing blades, disposed on the outer wall of the crushing shaft.

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