Mineral powder impurity screening device for pellet production

Abstract

The utility model relates to a mineral powder sundry screening device for pellet production, which belongs to the technical field of mineral powder screening, and comprises a box body, one side of the box body is fixedly connected with a feeding hopper, a box door is arranged in front of the box body, one end of the feeding hopper in the box body is rotatably connected with a rotating pipe, and the other end of the feeding hopper in the box body is rotatably connected with the rotating pipe. And one side of the rotating pipe is fixedly connected with a first screen and a second screen, the second screen is arranged on the outer side of the first screen in a sleeving mode, a driving mechanism is installed on the other side of the box body, and a dredging mechanism is installed in the box body. Through cooperative use of the dredging mechanism, the motor and the rotating shaft, when the motor works, the rotating shaft rotates, then the dredging mechanism works, the dredging mechanism blows air to the first screen and the second screen all the time, dredging of the first screen and the second screen is achieved, the situation that mineral powder blocks screen holes is avoided, and the service life of the first screen and the second screen is prolonged. The screening efficiency is improved, the screening quality is guaranteed, and subsequent cleaning of the screen is facilitated.

Description

Technical Field

[0001] This utility model belongs to the field of mineral powder screening technology, specifically relating to a mineral powder impurity removal device for pellet production. Background Technology

[0002] Here are some common screening methods for vanadium-titanium ore powder: Magnetic separation principle: Separates vanadium-titanium magnetite based on magnetic differences; Application: By adjusting parameters such as magnetic field strength and slurry flow rate, strongly magnetic vanadium-titanium magnetite particles are separated from weakly magnetic or non-magnetic gangue minerals; Gravity separation principle: Separates vanadium-titanium ore from gangue minerals based on density differences; Application: Commonly used gravity separation equipment includes jigs and shaking tables, suitable for processing coarse or medium-grained disseminated vanadium-titanium ore; Flotation principle: Utilizes the differences in physicochemical properties of mineral surfaces, by adding flotation reagents to selectively attach the target mineral to bubbles, thereby achieving separation from gangue minerals.

[0003] A search revealed a utility model patent in China with patent number CN219442383U, which discloses a mineral powder screening device. The device includes a main body with an internal drum. The drum has a frustum-shaped interior. A first screen is located on the side of the drum with a larger diameter. Inside the first screen is a second screen. A rotating shaft, penetrating the side wall of the main body and connected to a motor, is located inside the second screen. The end of the rotating shaft near the drum is connected to the inner wall of the drum via several first connecting rods. A sliding sleeve is fitted onto the end of the rotating shaft near the motor. The sliding sleeve is connected to a discharge hood via several second connecting rods. An annular cover plate is located on the outside of the discharge hood. The rotating shaft on the side of the sliding sleeve near the motor has threads, and bolts adapted to the threads are installed on this side of the rotating shaft. Through the two layers of rotating screens, the mineral powder is screened in multiple stages. During the rotation of the screens, the internal mineral powder is continuously lifted, increasing the spacing between the powder particles and preventing excessive accumulation of powder on the screens, which would cause screen blockage and affect screening efficiency.

[0004] However, in the above-mentioned patent, although the screen is rotating when screening mineral powder, the mineral powder still clogs the holes of the screen, affecting the screening efficiency and screening quality. Based on this, a mineral powder impurity removal device for pellet production is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a simple and reasonably designed mineral powder impurity removal device for pellet production in order to solve the above problems.

[0006] This utility model achieves the above objectives through the following technical solutions:

[0007] A mineral powder impurity screening device for pellet production includes a housing, a feeding hopper fixedly connected to one side of the housing, a door installed at the front of the housing, a rotating pipe rotatably connected to one end of the feeding hopper inside the housing, a first screen and a second screen fixedly connected to one side of the rotating pipe, the second screen being sleeved outside the first screen, a drive mechanism installed on the other side of the housing, and a clearing mechanism installed inside the housing.

[0008] As a further optimization of this utility model, the driving mechanism includes a motor installed on the other side of the housing, a rotating shaft fixedly connected to the output end of the motor, a fixing frame fixedly connected to the outer surface of the rotating shaft, and the fixing frame fixedly connected to the inner surface of the first screen.

[0009] As a further optimization of this utility model, a fixed disk is fixedly connected inside the box, and the first screen and the second screen are both rotatably connected to the fixed disk. The rotating shaft passes through the fixed disk and is rotatably connected to the fixed disk.

[0010] As a further optimization of this utility model, a discharge pipe is fixedly connected to the fixed plate. The discharge pipe has two feed ends, which are respectively connected to the first screen and the second screen. The discharge pipe is fixedly connected to the box body.

[0011] As a further optimization of this utility model, the unblocking mechanism includes a piston cylinder fixedly connected to the box body. Both ends of the piston cylinder are provided with air inlets. A piston plate is slidably connected inside the piston cylinder. An exhaust pipe is fixedly connected to the bottom of the piston cylinder. A first air blowing pipe and a second air blowing pipe are fixedly connected to the exhaust pipe.

[0012] As a further optimization of this utility model, the rotating shaft passes through the piston cylinder and is rotatably connected to the piston cylinder in a sealed manner. The rotating shaft passes through the piston plate and is connected to the piston plate by a thread. The first air blowing pipe is located below the first screen, and the second air blowing pipe is located below the second screen. Both the first air blowing pipe and the second air blowing pipe are fixedly connected to the fixed plate.

[0013] The beneficial effects of this utility model are as follows:

[0014] This invention utilizes a combination of a clearing mechanism, a motor, and a rotating shaft. When the motor is working, it causes the rotating shaft to rotate, which in turn activates the clearing mechanism. This ensures that the clearing mechanism continuously blows air onto the first and second screens, thus clearing the screens and preventing mineral powder from clogging the screen holes. This improves screening efficiency, ensures screening quality, and facilitates subsequent screen cleaning. Attached Figure Description

[0015] Figure 1This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the frontal cross-section of this utility model;

[0017] Figure 3 This is a schematic diagram of the frontal three-dimensional partial cross-sectional structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the partial cross-sectional structure of the side view of this utility model;

[0019] Figure 5 This is a schematic diagram of the side profile of this utility model.

[0020] Figure 6 This is a side sectional view of the present invention.

[0021] In the diagram: 1. Box body; 2. Feed hopper; 3. Box door; 4. Rotary pipe; 5. First screen; 6. Second screen; 7. Fixed plate; 8. Motor; 9. Rotary shaft; 10. Fixed frame; 11. Discharge pipe; 12. Piston cylinder; 13. Piston plate; 14. Air inlet; 15. Exhaust pipe; 16. First air blowing pipe; 17. Second air blowing pipe. Detailed Implementation

[0022] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0023] Example: Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, a mineral powder impurity screening device for pellet production includes a housing 1. A feeding hopper 2 is fixedly connected to one side of the housing 1. A door 3 is installed at the front of the housing 1. A rotating pipe 4 is rotatably connected to one end of the feeding hopper 2 inside the housing 1. A first screen 5 and a second screen 6 are fixedly connected to one side of the rotating pipe 4. The second screen 6 is fitted outside the first screen 5. A fixed plate 7 is fixedly connected inside the housing 1. Both the first screen 5 and the second screen 6 are rotatably connected to the fixed plate 7. A discharge pipe 11 is fixedly connected to the fixed plate 7. The discharge pipe 11 has two feed ends, which are respectively connected to the first screen 5 and the second screen 6. The first screen 5 and the second screen 6 are connected. Both feed ends of the discharge pipe 11 are equipped with electrically controlled valves (electrically controlled valves are existing technology and are not shown in the figure, so they will not be described in detail). The discharge pipe 11 is fixedly connected to the box body 1. A drive mechanism is installed on the other side of the box body 1. The drive mechanism includes a motor 8 installed on the other side of the box body 1. The output end of the motor 8 is fixedly connected to a rotating shaft 9. The rotating shaft 9 passes through the fixed plate 7 and is rotatably connected to the fixed plate 7. A fixed frame 10 is fixedly connected to the outer surface of the rotating shaft 9. The fixed frame 10 is fixedly connected to the inner surface of the first screen 5. A dredging mechanism is installed inside the box body 1.

[0024] In use, the mineral powder to be screened is added to the first screen 5 through the feeding hopper 2. After the mineral powder is added, the motor 8 is started so that the rotating shaft 9 drives the first screen 5 to rotate through the fixed frame 10, which in turn drives the rotating tube 4 to rotate, so that the rotating tube 4 drives the second screen 6 to rotate, so that the first screen 5 and the second screen 6 screen out the impurities in the mineral powder. The impurities will fall into the box 1. After screening is completed, the motor 8 is turned off, and the electrically controlled valves in the two feed ends of the discharge pipe 11 are opened from top to bottom to collect the mineral powder in the first screen 5 and the second screen 6 respectively. The impurities in the box 1 can be collected and processed by opening the box door 3.

[0025] like Figure 2 , Figure 3 , Figure 4 and Figure 6As shown, the unblocking mechanism includes a piston cylinder 12 fixedly connected to the housing 1. A rotating shaft 9 passes through the piston cylinder 12 and is rotatably connected to it in a sealed manner. Air inlets 14 are provided at both ends of the piston cylinder 12. A filter screen is installed on the air inlet side of the air inlet 14 to prevent dust from entering. A one-way valve is installed inside the air inlet 14, allowing the piston cylinder 12 to draw in external gas only through the air inlet 14. A piston plate 13 is slidably connected to the piston cylinder 12 in a sealed manner. The rotating shaft 9 passes through the piston plate 13 and is threadedly connected to it. This thread is the same as that of a reciprocating screw. The bottom of the piston cylinder 12 is fixedly connected to... An exhaust pipe 15 is provided, and a one-way valve is installed inside the exhaust pipe 15, so that the gas in the piston cylinder 12 can only be discharged through the exhaust pipe 15. The piston plate 13 divides the piston cylinder 12 into two chambers, so that when one chamber of the piston cylinder 12 is pumped out, the other chamber is in the exhaust state, thereby ensuring that the exhaust pipe 15 is always in the exhaust state. A first air blowing pipe 16 and a second air blowing pipe 17 are fixedly connected to the exhaust pipe 15. The first air blowing pipe 16 is located below the first screen 5, and the second air blowing pipe 17 is located below the second screen 6. Both the first air blowing pipe 16 and the second air blowing pipe 17 are fixedly connected to the fixed plate 7.

[0026] When the motor 8 operates, causing the first screen 5 and the second screen 6 to remove impurities from the mineral powder, the rotation of the shaft 9 will cause the piston plate 13 to slide back and forth inside the piston cylinder 12. This allows the piston cylinder 12 to draw in outside air through the air inlet 14. After being filtered, the outside air enters the piston cylinder 12, and the clean air inside the piston cylinder 12 is discharged through the exhaust pipe 15 to the first air blowing pipe 16 and the second air blowing pipe 17. This allows the first air blowing pipe 16 to blow air onto the first screen 5, and the second air blowing pipe 17 to blow air onto the second screen 6, thus clearing the first screen 5 and the second screen 6 and preventing mineral powder from clogging the holes of the first screen 5 and the second screen 6. This improves screening efficiency, ensures screening quality, and facilitates subsequent cleaning of the first screen 5 and the second screen 6.

[0027] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A device for screening out impurities from ore powder for pellet production, comprising a box body (1), one side of the box body (1) is fixedly connected with a feeding hopper (2), a box door (3) is installed in front of the box body (1), characterized in that: The feeding hopper (2) is rotatably connected with a rotating pipe (4) at one end in the box (1), one side of the rotating pipe (4) is fixedly connected with a first screen (5) and a second screen (6), the second screen (6) is sleeved outside the first screen (5), the other side of the box (1) is provided with a driving mechanism, a dredging mechanism is installed in the box (1).

2. The apparatus for screening out tramp impurities from ore fines for pellet production as claimed in claim 1 wherein: The driving mechanism comprises a motor (8) installed on the other side of the box (1), the output end of the motor (8) is fixedly connected with a rotating shaft (9), the outer surface of the rotating shaft (9) is fixedly connected with a fixing frame (10), and the fixing frame (10) is fixedly connected with the inner surface of the first screen (5).

3. The apparatus for screening out tramp from ore fines for pellet production as claimed in claim 2 wherein: The box (1) is fixedly connected with a fixed disc (7), the first screen (5) and the second screen (6) are rotatably connected with the fixed disc (7), and the rotating shaft (9) penetrates through the fixed disc (7) and is rotatably connected with the fixed disc (7).

4. The ore fines tramp screen removal device for pellet production according to claim 3, characterized in that: The fixed disc (7) is fixedly connected with a discharge pipe (11), the discharge pipe (11) is provided with two feeding ends, the two feeding ends are respectively communicated with the first screen (5) and the second screen (6), and the discharge pipe (11) is fixedly connected with the box (1).

5. The ore fines tramp material screening device for pellet production according to claim 3, characterized in that: The dredging mechanism comprises a piston cylinder (12) fixedly connected with the box (1), both ends of the piston cylinder (12) are provided with air inlet holes (14), the piston cylinder (12) is sealingly and slidably connected with a piston plate (13), the bottom of the piston cylinder (12) is fixedly communicated with an exhaust pipe (15), and the exhaust pipe (15) is fixedly communicated with a first air blowing pipe (16) and a second air blowing pipe (17).

6. The ore fines tramp material screening device for pellet production according to claim 5, characterized in that: The rotating shaft (9) penetrates through the piston cylinder (12) and is sealingly and rotatably connected with the piston cylinder (12), the rotating shaft (9) penetrates through the piston plate (13) and is connected with the piston plate (13) through threads, the first air blowing pipe (16) is arranged below the first screen (5), the second air blowing pipe (17) is arranged below the second screen (6), and the first air blowing pipe (16) and the second air blowing pipe (17) are fixedly connected with the fixed disc (7).

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