Complex ore body beneficiation device

Abstract

The utility model relates to a complex ore body beneficiation device which comprises a box body (10). A screen drum (11); a conveying auger (12); a plurality of screen holes (21) are formed in the circumferential surface of the screen drum (11), and the screen holes (21) are arranged in a conical shape; a plurality of jet heads (23) are arranged on the gas conveying pipeline (22) at intervals; mineral aggregate is fed from one end of the screen drum (11) and screened through rotation of the screen drum (11), the mineral aggregate meeting the standard is screened out through the conical screen holes (21), the mineral aggregate not meeting the standard is discharged out of the other end of the screen drum (11) through the conveying auger (12), the conical screen holes (21) are not prone to being blocked by the mineral aggregate, air is sprayed to the screen holes (21) through the air spraying head (23), the blocked mineral aggregate is sprayed into the screen drum (11), and therefore the blocked mineral aggregate is discharged out of the screen drum (11). The blockage of the mineral aggregate is avoided from being mixed into the standard mineral aggregate, the particle size difference of the obtained mineral aggregate is small, no water is mixed, the influence on the flowability of the mineral aggregate is avoided, and the blockage of the screen drum (11) is further avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of ore dressing equipment, in particular to an ore dressing device for a complex ore body. Background Art

[0002] The ore obtained after mining is mixed ore, which contains a variety of ore materials with different properties. Therefore, it needs to be processed by mineral processing. Mineral processing is based on the physical and chemical properties of different minerals in the ore. After the ore is crushed and ground, multiple processes are used to separate useful minerals from gangue minerals, and to separate various symbiotic (associated) useful minerals from each other as much as possible, and to remove or reduce harmful impurities, so as to obtain the raw materials required for smelting or other industries.

[0003] The Chinese utility model patent with the authorization announcement number CN220803761U discloses a rotary beneficiation device, in which the beneficiation drum rotates and the internal conveying nozzle is flushed to screen the ore. The ore that meets the standards is discharged and collected through the leak hole, and the ore that does not meet the standards is discharged by the spiral conveying paddle in the beneficiation drum. However, the defects are: the screen holes are easily blocked by the ore, and it is not easy to spray the blocked ore by spraying water on the inner wall of the screen drum. If it is sprayed, it will also cause the obtained ore particle size to be greatly different. In addition, the ore is not easy to flow after mixing with water, which is more likely to cause the screen drum to be blocked. Utility Model Content

[0004] The technical problem to be solved by the utility model is that the sieve holes of the existing ore dressing device are easily blocked by mineral materials, and it is not easy to spray out the blocked mineral materials by spraying water on the inner wall of the sieve drum. If the mineral materials are sprayed out, the particle sizes of the obtained mineral materials will be greatly different. In addition, the mineral materials are not easy to flow after mixing with water, which makes it easier to cause the sieve drum to be blocked.

[0005] In order to solve the above problems, the utility model provides a complex ore body beneficiation device, including a box body, a screen drum is rotatably provided in the box body, a conveying auger is provided in the screen drum, a plurality of sieve holes are opened on the circumferential surface of the screen drum, and the sieve holes are arranged in a cone shape; a gas pipeline is provided on the box body, and a plurality of nozzles are arranged on the gas pipeline at intervals, and the nozzles are arranged corresponding to the sieve holes.

[0006] The complex ore body beneficiation device provided by the utility model also has the following technical features:

[0007] The opening of the sieve holes gradually increases from the inner wall of the sieve cylinder to the outer wall of the sieve cylinder.

[0008] The conveying auger comprises a dense section and a sparse section, wherein one end of the dense section is arranged close to one end of the screen cylinder, the other end of the dense section is connected to one end of the sparse section, the other end of the sparse section is arranged close to the other end of the screen cylinder, and the length of the dense section is greater than that of the sparse section.

[0009] The number of mesh holes around the dense section is greater than the number of mesh holes around the sparse section.

[0010] A gas storage tank is provided on the box body. The gas storage tank is connected to one end of the gas transmission pipeline. A valve is provided on the gas transmission pipeline. The other end of the gas transmission pipeline is closed. A plurality of jet nozzles are provided on one side of the gas transmission pipeline.

[0011] A motor is fixed on the box body. The output shaft of the motor is fixed to a gear. An external gear ring is fixed on the outer wall of one end of the screening cylinder. The external gear ring meshes with the gear.

[0012] A feed hopper is installed on the box body. The lower end of the feed hopper is rotatably connected to one end of the screening cylinder. The other end of the screening cylinder is provided with a discharge port. A first guide plate is provided on the box body. The first guide plate is arranged below the discharge port.

[0013] A conveyor belt is installed in the box body. The conveyor belt is arranged below the screening cylinder. A conveying port is opened on the box body. The output end of the conveyor belt is arranged in the conveying port. A second guide plate is provided on the box body. The second guide plate is arranged below the conveyor belt.

[0014] The utility model has the following beneficial effects: Ore materials are fed into one end of the screening cylinder and screened by the rotation of the screening cylinder. The ore materials meeting the standards are screened out through the conical screening holes. The ore materials not meeting the standards are discharged from the other end of the screening cylinder by the conveying auger. The conical screening holes are not easily blocked by the ore materials. The jet nozzles jet air onto the screening holes to spray the blocked ore materials into the screening cylinder, avoiding the blocked ore materials from mixing into the ore materials meeting the standards. The obtained ore materials have small particle size differences and no water mixing, avoiding affecting the fluidity of the ore materials and further avoiding the blockage of the screening cylinder. Description of the Drawings

[0015] Figure 1 is a partial cross-sectional view of the utility model. Detailed Embodiments

[0016] The utility model will be described in detail below with reference to the drawings and in combination with embodiments. It should be noted that, without conflict, the embodiments and features in the embodiments of the utility model can be combined with each other.

[0017] As Figure 1 shown, the beneficiation device for complex ore bodies of the utility model includes a box body 10. A screening cylinder 11 is rotatably arranged in the box body 10. A conveying auger 12 is arranged in the screening cylinder 11. A plurality of screening holes 21 are formed on the circumferential surface of the screening cylinder 11. The screening holes 21 are arranged in a conical shape. A gas transmission pipeline 22 is provided on the box body 10. A plurality of jet nozzles 23 are arranged at intervals on the gas transmission pipeline 22. The jet nozzles 23 are arranged corresponding to the screening holes 21.

[0018] The ore is fed into one end of the sieve cylinder 11 and screened by rotating the sieve cylinder 11. The ore meeting the standard is screened out through the conical sieve holes 21, and the ore not meeting the standard is discharged from the other end of the sieve cylinder 11 by the conveying auger 12. The conical sieve holes 21 are not easily blocked by the ore, and air is jetted onto the sieve holes 21 through the air jet head 23 to jet the blocked ore into the sieve cylinder 11, preventing the blocked ore from mixing into the ore meeting the standard. The obtained ore has a small particle size difference and no water mixing, avoiding affecting the fluidity of the ore and further preventing the sieve holes 21 from being blocked.

[0019] Among them, the ore meeting the standard is the ore that can pass through the smallest opening of the sieve hole 21, and the ore not meeting the standard is the ore that cannot pass through the smallest opening of the sieve hole 21.

[0020] Among them, the sieve holes 21 are arranged at intervals in both the circumferential direction and the length direction of the sieve cylinder 11.

[0021] Preferably, the opening of the sieve hole 21 gradually increases from the inner wall of the sieve cylinder 11 to the outer wall of the sieve cylinder 11.

[0022] To reduce the probability of the ore not meeting the standard entering the sieve hole 21 and at the same time facilitate the air jet head 23 to jet air inside the sieve hole 21.

[0023] Of course, the opening of the sieve hole 21 can also gradually decrease from the inner wall of the sieve cylinder 11 to the outer wall of the sieve cylinder 11. At this time, the ore not meeting the standard is easy to enter the sieve hole 21, and it is not convenient for the air jet head 23 to jet air on the sieve hole 21. However, the advantage of this setting is that the ore entering the sieve hole 21 can fall back into the sieve cylinder 11 under the action of the shape of the sieve hole 21 itself.

[0024] Preferably, the conveying auger 12 includes a dense section 13 and a sparse section 14. One end of the dense section 13 is arranged close to one end of the sieve cylinder 11. The other end of the dense section 13 is connected to one end of the sparse section 14. The other end of the sparse section 14 is arranged close to the other end of the sieve cylinder 11. The length of the dense section 13 is greater than the length of the sparse section 14.

[0025] To extend the screening time of the ore in the dense section 13 and prevent the screening time from being too short and affecting the quality of the screened ore.

[0026] Preferably, the number of sieve holes 21 around the dense section 13 is greater than the number of sieve holes 21 around the sparse section 14.

[0027] Preferably, an air storage tank 24 is provided on the box body 10. The air storage tank 24 is connected to one end of the air pipeline 22. A valve 25 is provided on the air pipeline 22. The other end of the air pipeline 22 is closed. A plurality of air jet heads 23 are provided on one side of the air pipeline 22.

[0028] Among them, compressed air is stored in the air storage tank 24; a control module can be provided on the air storage tank 24 to control the intermittent opening and closing of the valve 23, so as to control the jet head 23 to jet air when it is aligned with the sieve holes 21, and not to jet air at other times, so as to save the gas consumption.

[0029] Preferably, a motor 26 is fixed on the box body 10, the output shaft of the motor 26 is fixed to a gear 27, and an external gear ring 28 is fixed on the outer wall of one end of the sieve cylinder 11, and the external gear ring 28 meshes with the gear 27.

[0030] The output shaft of the motor 26 drives the gear 27 to rotate, driving the external gear ring 28 and the sieve cylinder 11 to rotate at a low speed, so as to screen the ore in the sieve cylinder 11.

[0031] Preferably, a feed hopper 29 is installed on the box body 10, the lower end of the feed hopper 29 is rotatably connected to one end of the sieve cylinder 11, a discharge port 30 is provided at the other end of the sieve cylinder 11, and a first guide plate 31 is provided on the box body 10, and the first guide plate 31 is arranged below the discharge port 30.

[0032] Preferably, a conveyor belt 32 is installed in the box body 10, the conveyor belt 32 is arranged below the sieve cylinder 11, a conveying port 33 is opened on the box body 10, the output end of the conveyor belt 32 is arranged in the conveying port 33, and a second guide plate 34 is provided on the box body 10, and the second guide plate 34 is arranged below the conveyor belt 32.

[0033] The working principle of the present utility model is as follows:

[0034] The ore is fed into one end of the sieve cylinder 11 through the feed hopper 29, the motor 26 is started, the output shaft of the motor 26 drives the gear 27 to rotate, driving the external gear ring 28 and the sieve cylinder 11 to rotate at a low speed, so as to screen the ore in the sieve cylinder 11. By arranging the conveying auger 12 with a dense section 13 and a sparse section 14, the screening time of the ore in the dense section 13 is extended to avoid affecting the quality of the screened ore due to too short screening time; the ore meeting the standards is screened out through the conical sieve holes 21, falls on the conveyor belt 32 and is sent out from the conveying port 33; the ore not meeting the standards is discharged from the discharge port 30 at the other end of the sieve cylinder 11 by the conveying auger 12; the conical sieve holes 21 are not easily blocked by the ore, and the jet head 23 jets air from the outside to the inside of the sieve holes 21 to spray the blocked ore into the sieve cylinder 11, so as to avoid the blocked ore from being mixed into the ore meeting the standards, thereby realizing that the particle size difference of the obtained ore is small and there is no water mixing, avoiding affecting the fluidity of the ore, and further avoiding the blockage of the sieve holes 21.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A complex ore beneficiation device, comprising a box (10), a screen drum (11) rotatably arranged in the box (10), a conveying auger (12) arranged in the screen drum (11), characterized in that: A plurality of sieve holes (21) are provided on the circumferential surface of the sieve drum (11), and the sieve holes (21) are arranged in a conical shape; a gas transmission pipeline (22) is provided on the box body (10), and a plurality of air jet heads (23) are arranged at intervals on the gas transmission pipeline (22), and the air jet heads (23) are arranged corresponding to the sieve holes (21).

2. The complex ore body beneficiation device according to claim 1 is characterized in that: The opening of the sieve hole (21) gradually increases from the inner wall of the sieve cylinder (11) to the outer wall of the sieve cylinder (11).

3. The complex ore body beneficiation device according to claim 1 is characterized in that: The conveying auger (12) comprises a dense section (13) and a sparse section (14); one end of the dense section (13) is arranged close to one end of the screen drum (11); the other end of the dense section (13) is connected to one end of the sparse section (14); the other end of the sparse section (14) is arranged close to the other end of the screen drum (11); and the length of the dense section (13) is greater than the length of the sparse section (14).

4. The complex ore body beneficiation device according to claim 3 is characterized in that: The number of the sieve holes (21) around the dense section (13) is greater than the number of the sieve holes (21) around the sparse section (14).

5. The complex ore body beneficiation device according to claim 1, characterized in that: The box body (10) is provided with a gas storage tank (24), which is connected to one end of a gas pipeline (22). A valve (25) is provided on the gas pipeline (22), and the other end of the gas pipeline (22) is sealed. A plurality of spray nozzles (23) are provided on one side of the gas pipeline (22).

6. The complex ore body beneficiation device according to claim 1, characterized in that: A motor (26) is fixed on the box body (10), an output shaft of the motor (26) is fixed to a gear (27), an outer gear ring (28) is fixed to an outer wall of one end of the screen drum (11), and the outer gear ring (28) is meshed with the gear (27).

7. The complex ore body beneficiation device according to claim 1, characterized in that: A feed hopper (29) is mounted on the box body (10), the lower end of the feed hopper (29) is rotatably connected to one end of the sieve drum (11), the other end of the sieve drum (11) is provided with a discharge port (30), and a first guide plate (31) is provided on the box body (10), the first guide plate (31) being arranged below the discharge port (30).

8. The complex ore body beneficiation device according to claim 1, characterized in that: A conveyor belt (32) is installed in the box body (10), and the conveyor belt (32) is arranged below the screen drum (11). A conveying port (33) is opened on the box body (10), and the output end of the conveyor belt (32) is arranged in the conveying port (33). A second guide plate (34) is provided on the box body (10), and the second guide plate (34) is arranged below the conveyor belt (32).

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