Bauxite grinding equipment

Abstract

The utility model relates to the technical field of bauxite, and discloses bauxite grinding equipment which comprises a machine body, two grinding rollers are rotationally connected to the inner wall of the machine body, the left ends of the two grinding rollers are connected in a meshed mode through gears, a first screen is installed in the machine body, and a vibration motor is installed on the inner wall of the machine body. And the output end of the vibration motor is in contact with the first screen. According to the bauxite grinding equipment, high-frequency vibration can be generated by mounting the vibration motor, so that particles which are not fully ground on the first screen can be discharged into the grinding box under the influence of vibration, and meanwhile, the screening efficiency can be improved; according to the grinding device, particles can be ground more finely through cooperation of the installed grinding piece and the grinding frame, so that the grinding precision is improved, powder screened by the first screen and the second screen can be discharged out of the machine body together, the situation that dust is raised in the discharging process can be avoided through cooperation of a spiral auger, and then the overall practicability is improved.

Description

Technical Field

[0001] This application relates to the technical field of bauxite, and specifically relates to a bauxite grinding device. Background Technique

[0002] Bauxite, also known as alumina or bauxite ore, mainly consists of alumina, which is a hydrated alumina containing impurities. It is a earthy mineral, white or grayish-white, brownish-yellow or light red due to the presence of iron, with a density of 3.45 g / cm3, a hardness of 1 - 3, opaque, brittle, and extremely difficult to melt. It is insoluble in water and soluble in sulfuric acid and sodium hydroxide solution, and is mainly used for aluminum smelting and making refractory materials.

[0003] The existing patent (publication number: CN219849780U) discloses a bauxite grinding device, which relates to the technical field of grinding equipment, including a box body. The upper surface of the box body is fixedly connected with a feeding port. The inside of the box body is fixedly connected with a partition board, which divides the box body into a grinding and screening box and a repeated grinding and conveying box. The outer surface of the transmission shaft rotatably connected to the inner side wall of the repeated grinding and conveying box is fixedly connected with a first sprocket. The outer surface of the first sprocket is equipped with a conveying chain, and a collection box is installed outside the conveying chain. By setting the box body, partition board, screen, repeated abrasive outlet, transmission shaft, first sprocket, conveying chain and collection box, this bauxite grinding device has the function of automatically collecting bauxite that has not been completely ground into powder. The collection of semi-finished bauxite is arranged inside the box body, which can reduce the occurrence of dust, purify the working environment, and protect the health of the staff.

[0004] During the use of the above document, since the screen is in a static state, during the screening process, larger particles may remain stationary on the screen and not enter the repeated abrasive outlet. At the same time, since the bauxite is ground by using grinding rollers and the grinding precision cannot be changed, there will still be larger particles after repeated grinding, thus affecting the grinding efficiency of bauxite. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, this application provides a bauxite grinding device, which has the advantages of improving grinding efficiency, etc., and solves the problems raised in the background technique.

[0006] To achieve the above object, the present application provides the following technical solutions: A bauxite grinding device includes a machine body. Two grinding rollers are rotatably connected to the inner wall of the machine body. The left ends of the two grinding rollers are meshed and connected by gears. A first screen is installed inside the machine body. A vibration motor is installed on the inner wall of the machine body, and the output end of the vibration motor contacts the first screen. A grinding box is installed on the upper surface of the machine body. A grinding frame is installed inside the grinding box. A rotating rod is rotatably connected to the upper surface of the grinding frame. A plurality of grinding members distributed in a circular pattern are fixedly connected to the outer surface of the rotating rod. All the plurality of grinding members contact the inner wall of the grinding frame. A second screen is installed on the bottom surface of the grinding frame.

[0007] Through the above solution, by installing a vibration motor, high-frequency vibration can be generated, so that the particles that are not sufficiently ground on the first screen can be affected by the vibration and discharged into the grinding box, and at the same time, the screening efficiency can be improved.

[0008] Further, a discharge cavity is opened inside the machine body. The grinding box is communicated with the discharge cavity. A rotating shaft is rotatably connected to the inner wall of the discharge cavity. A spiral auger is installed on the outer surface of the rotating shaft.

[0009] Through the above solution, installing a spiral auger can facilitate the discharge of the ground bauxite and avoid dust generation during the discharge process.

[0010] Further, the inner wall of the grinding frame is set as a rough surface.

[0011] Through the above solution, setting the inner wall of the grinding frame as a rough surface can cooperate with the grinding members to grind the particles in the grinding frame more carefully, thereby improving the grinding efficiency of bauxite.

[0012] Further, a first motor is installed on the upper surface of the grinding frame. The output end of the first motor is fixedly connected to the upper end of the rotating rod.

[0013] Through the above solution, installing a first motor can drive the rotating rod to rotate, so that the rotating rod drives a plurality of grinding members to swing in the grinding frame and cooperate with the grinding frame to grind the bauxite in the grinding frame more carefully.

[0014] Further, a discharge port is opened on the right side of the machine body. The discharge port is located inside the grinding box.

[0015] Through the above solution, opening the discharge port can facilitate the particles that are not fully ground on the first screen to be affected by the vibration and discharged into the grinding box for more careful grinding.

[0016] Further, a pulley is fixedly connected to the left end of both the rotating shaft and the rear grinding roller. The two pulleys are connected by a belt in a transmission manner.

[0017] Through the above solution, the cooperation between the installed pulley and the belt can transmit power, enabling the rotating shaft to rotate symmetrically during the rotation process, so that the two grinding rollers can grind the bauxite entering the machine body.

[0018] Furthermore, two baffles are fixedly connected to the inner wall of the machine body, and the two baffles are symmetrical to each other.

[0019] Through the above solution, the installed baffles can guide the bauxite so that it can enter between the two grinding rollers, and at the same time can reduce the dust discharged from the machine body.

[0020] Furthermore, a second motor is installed on the left side of the machine body, and the output end of the second motor is fixedly connected to the left end of the rotating shaft.

[0021] Through the above solution, installing the second motor can drive the rotating shaft to rotate and cooperate with the spiral auger to convey the ground bauxite, enabling it to be stably discharged from the machine body and reducing dust emission.

[0022] Compared with the prior art, the technical solution of the present application has the following beneficial effects:

[0023] For this bauxite grinding equipment, by installing a vibration motor, high-frequency vibration can be generated, so that the particles that are not sufficiently ground on the first screen can be affected by the vibration and discharged into the grinding box, and at the same time, the screening efficiency can be improved. By installing the cooperation between the grinding parts and the grinding frame, the particles can be ground more carefully, thereby improving the grinding accuracy. The powder screened by the first screen and the second screen can be discharged from the machine body together, and through the cooperation of the spiral auger, dust can be generated during the discharging process, thereby improving the overall practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a sectional view of the overall structure of the present application Figure 1 ;

[0025] Figure 2 is for the present application Figure 1 enlarged schematic view of the structure at A;

[0026] Figure 3 is a sectional view of the overall structure of the present application Figure 2 ;

[0027] Figure 4 is a schematic view of the overall structure of the present application.

[0028] In the figure:

[0029] 1. Body; 2. Grinding roller; 3. First sieve; 4. Vibration motor; 5. Grinding box; 6. Grinding frame; 7. Rotating rod; 8. Grinding piece; 9. Second sieve; 10. Discharge chamber; 11. First motor; 12. Discharge port; 13. Pulley; 14. Baffle; 15. Second motor; 16. Rotating shaft; 17. Screw auger. Specific embodiments

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0031] Please refer to Figure 1 , Figure 2 and Figure 3 , a bauxite grinding device in this embodiment includes a body 1, and is characterized in that: two grinding rollers 2 are rotatably connected to the inner wall of the body 1, the left ends of the two grinding rollers 2 are connected by gear meshing, a first sieve 3 is installed inside the body 1, a vibration motor 4 is installed on the inner wall of the body 1, and the output end of the vibration motor 4 is in contact with the first sieve 3. A grinding box 5 is installed on the upper surface of the body 1, a grinding frame 6 is installed inside the grinding box 5, a rotating rod 7 is rotatably connected to the upper surface of the grinding frame 6, and a plurality of grinding pieces 8 distributed in a circumferential manner are fixedly connected to the outer surface of the rotating rod 7. A plurality of grinding pieces 8 are all in contact with the inner wall of the grinding frame 6. A second sieve 9 is installed on the bottom surface of the grinding frame 6. By installing the vibration motor 4, high-frequency vibration can be generated, so that the particles that are not sufficiently ground on the first sieve 3 can be discharged into the grinding box 5 under the influence of vibration, and at the same time, the screening efficiency can be improved. By installing the cooperation of the grinding pieces 8 and the grinding frame 6, the particles can be ground more carefully, thereby improving the grinding accuracy. The powder screened by the first sieve 3 and the second sieve 9 can be discharged from the body 1 together, and through the cooperation of the screw auger 17, the situation of dust flying can occur during the discharging process, thereby improving the overall practicability.

[0032] Please refer to Figure 1 , Figure 2 and Figure 3, a discharge cavity 10 is formed inside the machine body 1. The grinding box 5 is communicated with the discharge cavity 10. A rotating shaft 16 is rotatably connected to the inner wall of the discharge cavity 10. A spiral auger 17 is installed on the outer surface of the rotating shaft 16. Installing the spiral auger 17 can facilitate the discharge of the ground bauxite and prevent dust from being generated during the discharging process. The inner wall of the grinding frame 6 is set as a rough surface. Setting the inner wall of the grinding frame 6 as a rough surface can cooperate with the grinding parts 8 to grind the particles in the grinding frame 6 more finely, thereby improving the grinding efficiency of bauxite. A first motor 11 is installed on the upper surface of the grinding frame 6. The output end of the first motor 11 is fixedly connected to the upper end of the rotating rod 7. Installing the first motor 11 can drive the rotating rod 7 to rotate, so that the rotating rod 7 drives a plurality of grinding parts 8 to swing in the grinding frame 6 and cooperate with the grinding frame 6 to grind the bauxite in the grinding frame 6 more finely. Both the rotating shaft 16 and the left end of the rear grinding roller 2 are fixedly connected with belt pulleys 13. The two belt pulleys 13 are connected by a belt. Installing the belt pulleys 13 and the belt can transmit power, so that when the rotating shaft 16 rotates, the two grinding rollers 2 can rotate symmetrically to grind the bauxite entering the machine body 1.

[0033] Please refer to Figure 1 , Figure 2 and Figure 4 , a discharge port 12 is formed on the right side of the machine body 1. The discharge port 12 is located inside the grinding box 5. Opening the discharge port 12 can facilitate the particles that are not fully ground on the first screen 3 to be discharged into the grinding box 5 under the influence of vibration for more fine grinding. Two baffles 14 are fixedly connected to the inner wall of the machine body 1. The two baffles 14 are symmetrical. Installing the baffles 14 can guide the bauxite so that it can enter between the two grinding rollers 2, and at the same time can reduce the dust discharged from the machine body 1. A second motor 15 is installed on the left side of the machine body 1. The output end of the second motor 15 is fixedly connected to the left end of the rotating shaft 16. Installing the second motor 15 can drive the rotating shaft 16 to rotate and cooperate with the spiral auger 17 to convey the ground bauxite so that it can be stably discharged from the machine body 1 and reduce dust.

[0034] A bauxite grinding device in this embodiment can generate high-frequency vibration by installing a vibration motor 4, so that the particles that are not fully ground on the first screen 3 can be discharged into the grinding box 5 under the influence of vibration, and at the same time can improve the screening efficiency. By installing the cooperation of the grinding parts 8 and the grinding frame 6, the particles can be ground more finely, thereby improving the grinding accuracy. The powder screened by the first screen 3 and the second screen 9 can be discharged from the machine body 1 together, and the situation of dust generation can occur during the discharging process through the cooperation of the spiral auger 17, thereby improving the overall practicability.

[0035] The working principle of the above embodiment is as follows: First, bauxite is put into the machine body 1. By installing two baffles 14, the bauxite can be converged between the two grinding rollers 2. At this time, the second motor 15 is started and drives the rotating shaft 16 to rotate. Through the transmission of the belt, the rear grinding roller 2 can be driven to rotate. When the rear grinding roller 2 rotates, the two grinding rollers 2 can rotate symmetrically through the engagement of gears and grind the bauxite in the machine body 1. After the grinding is completed, the bauxite can fall onto the first sieve. At this time, the vibration motor 4 is started and transmits high-frequency vibration to the first sieve, so that the particles that are not sufficiently ground on the first sieve can enter the grinding box 5 through the discharge port 12 under the influence of vibration. The bauxite that enters the discharge box can fall into the grinding frame 6. At this time, the first motor 11 is started and drives the rotating rod 7 to rotate, so that the rotating rod 7 can drive a plurality of grinding parts 8 to cooperate with the grinding frame 6 to grind the particles more carefully, thereby improving the grinding accuracy. The powder screened by the first sieve and the second sieve can be discharged into the discharge cavity 10 together, and the bauxite is conveyed out of the machine body 1 through the cooperation of the rotating shaft 16 and the spiral auger, reducing dust emission.

[0036] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the element.

[0037] Although the embodiments of the present application have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present application. The scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A bauxite grinding device, comprising a body (1), characterized in that: The inner wall of the machine body (1) is rotatably connected to two grinding rollers (2), the left ends of the two grinding rollers (2) are meshed and connected via gears, a first screen (3) is installed inside the machine body (1), a vibration motor (4) is installed on the inner wall of the machine body (1), the output end of the vibration motor (4) is in contact with the first screen (3), a grinding box (5) is installed on the upper surface of the machine body (1), a grinding frame (6) is installed inside the grinding box (5), the upper surface of the grinding frame (6) is rotatably connected to a rotating rod (7), the outer surface of the rotating rod (7) is fixedly connected to a plurality of grinding members (8) distributed in a circumferential manner, the plurality of grinding members (8) are in contact with the inner wall of the grinding frame (6), and a second screen (9) is installed on the bottom surface of the grinding frame (6).

2. The bauxite grinding equipment according to claim 1, characterized in that: A discharge chamber (10) is provided inside the machine body (1), the grinding box (5) is connected to the discharge chamber (10), the inner wall of the discharge chamber (10) is rotatably connected to a rotating shaft (16), and a spiral auger (17) is installed on the outer surface of the rotating shaft (16).

3. The bauxite grinding equipment according to claim 1, characterized in that: The inner wall of the grinding frame (6) is configured as a rough surface.

4. The bauxite grinding equipment according to claim 1, characterized in that: A first motor (11) is installed on the upper surface of the grinding frame (6), and an output end of the first motor (11) is fixedly connected to the upper end of the rotating rod (7).

5. The bauxite grinding equipment according to claim 1, characterized in that: The right side of the machine body (1) is provided with a discharge port (12), and the discharge port (12) is located inside the grinding box (5).

6. The bauxite grinding equipment according to claim 2, characterized in that: The rotating shaft (16) is fixedly connected to the left end of one of the grinding rollers (2) of the machine body with a pulley (13), and the two pulleys (13) are connected via a belt transmission.

7. The bauxite grinding equipment according to claim 1, characterized in that: Two baffles (14) are symmetrically fixedly connected to the inner wall of the machine body (1).

8. The bauxite grinding equipment according to claim 1, characterized in that: A second motor (15) is installed on the left side of the machine body (1), and the output end of the second motor (15) is fixedly connected to the left end of the rotating shaft (16).

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