Pellet cooling and screening integrated device

Abstract

The utility model belongs to the field of auxiliary equipment for pellet preparation, and particularly relates to a pellet cooling and screening integrated device which comprises a base, the top of the base is connected with a box body through an elastic assembly, a vibration motor is installed on the box body, and a feeding port is formed in the left end of the top of the box body. An upper sieve plate, an upper material guide plate, a middle material guide plate, a lower sieve plate and a lower material guide plate are fixedly connected between the front wall and the rear wall of the box body from top to bottom in sequence, sieve pore areas are arranged on the upper sieve plate and the lower sieve plate, defective product discharge ports are formed in the box body corresponding to the lowest ends of the upper material guide plate and the lower material guide plate, and a qualified product discharge port is formed in the box body corresponding to the lowest end of the lower sieve plate. The box body is further provided with a cold air inlet. The pellet cooling and screening integrated device integrates the pellet cooling function and the pellet screening function, and the occupied area is small; and in addition, the pellets do not need to be transferred between the pellet cooling procedure and the pellet screening procedure, and the operation efficiency can be greatly improved.

Description

Technical Field

[0001] The utility model relates to a pellet cooling and screening integrated device, belonging to the field of auxiliary equipment for pellet preparation. Background Art

[0002] Pellets are a key raw material in the metallurgical industry, primarily used in blast furnace smelting. By processing powdered material into spheres, pellets improve their physical and chemical properties and enhance their metallurgical performance, making them an ideal raw material for blast furnace smelting. During the pellet production process, the pellets, roasted in a rotary kiln or shaft furnace, are cooled to a suitable temperature. The cooled pellets are then screened to remove unqualified pellets, which are then returned to the ore mine for re-pelleting.

[0003] In the prior art, the cooling and screening of pellets are usually completed by two independent devices. After the pellets are cooled, they need to be transferred to the screening device, which not only occupies a large area but also has low operating efficiency. Utility Model Content

[0004] In view of the above deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a pellet cooling and screening integrated device which integrates pellet cooling and screening functions.

[0005] The pellet cooling and screening integrated device described in the present invention includes a base, the top of the base is connected to a box body through an elastic component, a vibration motor is installed on the box body, a feed port is provided at the left end of the top of the box body, an upper screen plate, an upper guide plate, a middle guide plate, a lower screen plate and a lower guide plate are fixedly connected between the front and rear walls of the box body from top to bottom, the left end of the upper screen plate is connected to the left wall of the box body, the right end of the upper screen plate is tilted downward and forms a first dropout port between the right wall of the box body, the left end of the lower screen plate is connected to the left wall of the box body, and the right end of the lower screen plate is tilted downward. It is inclined and connected to the right wall of the box, and both the upper sieve plate and the lower sieve plate are provided with a sieve hole area. The left ends of the upper guide plate and the lower guide plate are connected to the left wall of the box, and the right ends of the upper guide plate and the lower guide plate are inclined upward and cross the sieve hole area. A second drop outlet is formed between the left end of the middle guide plate and the left wall of the box, and the right end of the middle guide plate is inclined upward and connected to the right wall of the box. The lower ends of the upper guide plate and the lower guide plate on the box are provided with defective product discharge outlets, and the lower end of the lower sieve plate on the box is provided with a qualified product discharge outlet, and the box is also provided with a cold air inlet.

[0006] Furthermore, the elastic component includes a plurality of guide sleeves fixedly connected to the base and a plurality of guide shafts fixedly connected to the box body, each guide sleeve is adapted to the guide shaft in a one-to-one manner, and a vibration spring is installed on the outside of each set of adapted guide sleeve and guide shaft structures, and the vibration motor is arranged at the bottom of the box body.

[0007] Furthermore, the discharge ends of the two defective product discharge ports are staggered.

[0008] Furthermore, the right end of the lower material guide plate is bent upward and connected to the bottom of the lower screen plate.

[0009] Furthermore, there are three cold air inlets, two of which are arranged on the left wall of the box body, and the other cold air inlet is arranged on the right wall of the box body.

[0010] Furthermore, the two cold air inlets on the left wall of the box are respectively arranged between the upper screen plate and the upper material guide plate and between the lower screen plate and the lower material guide plate, and the cold air inlet on the right wall of the box is arranged between the middle material guide plate and the lower screen plate.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] The pellet cooling and screening integrated device of the utility model integrates the pellet cooling and screening functions and occupies a small area. In addition, there is no need to transfer the pellets between the pellet cooling and screening processes, which can greatly improve the operating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the present utility model.

[0014] In the figure: 1. Base; 2. Vibration motor; 3. Vibration spring; 4. Qualified product discharge port; 5. Lower sieve plate; 6. Cold air inlet; 7. Sieve hole area; 8. First drop port; 9. Upper sieve plate; 10. Box body; 11. Lower guide plate; 12. Feed port; 13. Upper guide plate; 14. Middle guide plate; 15. Second drop port; 16. Defective product discharge port. DETAILED DESCRIPTION

[0015] The following is a further description of the embodiments of the present invention with reference to the accompanying drawings:

[0016] Example 1:

[0017] like Figure 1As shown, the pellet cooling and screening integrated device described in the present invention includes a base 1, the top of the base 1 is connected to a box body 10 through an elastic component, a vibration motor 2 is installed on the box body 10, a feed port 12 is provided at the top left end of the box body 10, an upper screen plate 9, an upper guide plate 13, a middle guide plate 14, a lower screen plate 5 and a lower guide plate 11 are fixedly connected between the front and rear walls of the box body 10 from top to bottom, the left end of the upper screen plate 9 is connected to the left wall of the box body 10, the right end of the upper screen plate 9 is tilted downward and forms a first dropout port 8 with the right wall of the box body 10, the left end of the lower screen plate 5 is connected to the left wall of the box body 10, the right end of the lower screen plate 5 is tilted downward and The right wall of the box body 10 is connected, and a sieve hole area 7 is provided on the upper sieve plate 9 and the lower sieve plate 5. The left ends of the upper guide plate 13 and the lower guide plate 11 are connected to the left wall of the box body 10, and the right ends of the upper guide plate 13 and the lower guide plate 11 are inclined upward and cross the sieve hole area 7. A second drop port 15 is formed between the left end of the middle guide plate 14 and the left wall of the box body 10, and the right end of the middle guide plate 14 is inclined upward and connected to the right wall of the box body 10. The lower ends of the upper guide plate 13 and the lower guide plate 11 on the box body 10 are provided with a defective product discharge port 16, and the lower end of the lower sieve plate 5 on the box body 10 is provided with a qualified product discharge port 4. The box body 10 is also provided with a cold air inlet 6.

[0018] When in use, the cold air inlet 6 is connected to the cold air supply pipe, and the cold air in the cold air supply pipe enters the interior of the box 10 through the cold air inlet 6, so that the box 10 is filled with cold air; the vibration motor 2 is in operation, and under the deformation of the elastic component, it can drive the box 10 to vibrate up and down; the pellets roasted in the rotary kiln or the vertical furnace fall onto the upper sieve plate 9 in the box 10 through the feed port 12, and then the pellets move downward while vibrating with the box 10, and then the pellets fall onto the middle guide plate 14 through the first drop port 8, and then fall onto the lower sieve plate 5 through the second drop port 15, and finally are discharged through the qualified product discharge port 4. When the pellets pass through the sieve hole area 7 on the upper sieve plate 9, unqualified pellets will pass through the upper sieve Plate 9 falls on the upper guide plate 13 and is discharged through the corresponding defective product discharge port 16. When the pellets pass through the sieve hole area 7 on the lower screen plate 5, the unqualified pellets that have not been completely screened will pass through the lower screen plate 5 and fall on the lower guide plate 11 and be discharged through the corresponding defective product discharge port 16. By screening the pellets twice, the screening effect of the pellets is guaranteed; during the entire walking process of the pellets, the pellets will exchange heat with the cold air in the box 10, thereby completing their own cooling. Since the pellets are walking in vibration, the contact area between the pellets and the cold air can be guaranteed, and the cooling effect is better. The air flow after heat exchange is discharged through the feed port 12, the qualified product discharge port 4 and the defective product discharge port 16.

[0019] The pellet cooling and screening integrated device of the utility model integrates the pellet cooling and screening functions and occupies a small area. In addition, there is no need to transfer the pellets between the pellet cooling and screening processes, which can greatly improve the operating efficiency.

[0020] Example 2:

[0021] like Figure 1 As shown, based on Example 1,

[0022] Furthermore, the elastic component includes a plurality of guide sleeves fixedly connected to the base 1 and a plurality of guide shafts fixedly connected to the box body 10, each guide sleeve is adapted to the guide shaft in a one-to-one manner, and a vibration spring 3 is installed on the outside of each set of adapted guide sleeve and guide shaft structures. The vibration motor 2 is arranged at the bottom of the box body 10. The matching structure of the guide sleeve and the guide shaft has a high structural stability on the one hand, and can guide the box body 10 on the other hand to ensure that the box body 10 vibrates up and down. The deformation effect of the vibration spring 3 is good, which can meet the effective support of the box body 10.

[0023] Furthermore, the discharge ends of the two defective product discharge ports 16 are staggered and arranged in a reasonable structure, so that both defective product discharge ports 16 can receive materials on the ground;

[0024] Furthermore, the right end of the lower guide plate 11 is bent upward and connected to the bottom of the lower screen plate 5, which can seal the space below the lower guide plate 11. On the one hand, it can prevent cold air from entering the space and reducing the cold air utilization rate, and on the other hand, it can prevent defective pellets from falling into the space and causing material waste.

[0025] Furthermore, the number of the cold air inlets 6 is three, wherein two cold air inlets 6 are arranged on the left wall of the box body 10, and the other cold air inlet 6 is arranged on the right wall of the box body 10. Cold air enters the box body 10 through multiple cold air inlets 6, which can make the cold air more uniform in the box body 10, thereby improving the heat exchange efficiency.

[0026] Furthermore, the two cold air inlets 6 located on the left wall of the box body 10 are respectively arranged between the upper screen plate 9 and the upper guide plate 13 and between the lower screen plate 5 and the lower guide plate 11. The cold air inlet 6 located on the right wall of the box body 10 is arranged between the middle guide plate 14 and the lower screen plate 5. The cold air entering through the two cold air inlets 6 on the left wall of the box body 10 can cool the defective pellets screened out, and this part of the cold air can pass through the corresponding sieve hole area 7 during the circulation, and can also participate in the cooling of qualified pellets; the cold air entering through the cold air inlet 6 on the right wall of the box body 10 can circulate in reverse along the walking path of the pellets, thereby ensuring the cooling effect of the pellets.

[0027] It is particularly noted that in the description of the present invention, the directions or positional relationships indicated by the terms "up", "down", "front", "back", "left", "right", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, rather than requiring the present invention to be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

Claims

1. A pellet cooling and screening integrated device, characterized by: The invention comprises a base (1), the top of the base (1) is connected to a box (10) through an elastic component, a vibration motor (2) is installed on the box (10), a feed port (12) is provided at the left end of the top of the box (10), an upper screen plate (9), an upper guide plate (13), a middle guide plate (14), a lower screen plate (5) and a lower guide plate (11) are fixedly connected in sequence from top to bottom between the front and rear walls of the box (10), the left end of the upper screen plate (9) is connected to the left wall of the box (10), the right end of the upper screen plate (9) is tilted downward and forms a first drop opening (8) with the right wall of the box (10), the left end of the lower screen plate (5) is connected to the left wall of the box (10), the right end of the lower screen plate (5) is tilted downward and connected to the right wall of the box (10), the upper screen plate (9) is connected to the left wall of the box (10), the right end of the lower screen plate (5) is connected to the right wall of the box (10), the upper screen plate (9) is connected to the left wall of the box (10), the The plate (9) and the lower sieve plate (5) are both provided with a sieve hole area (7), the left ends of the upper guide plate (13) and the lower guide plate (11) are both connected to the left wall of the box body (10), the right ends of the upper guide plate (13) and the lower guide plate (11) are both inclined upward and cross the sieve hole area (7), a second drop opening (15) is formed between the left end of the middle guide plate (14) and the left wall of the box body (10), the right end of the middle guide plate (14) is inclined upward and connected to the right wall of the box body (10), the lower ends of the upper guide plate (13) and the lower guide plate (11) on the box body (10) are both provided with a defective product discharge port (16), the lower end of the lower sieve plate (5) on the box body (10) is provided with a qualified product discharge port (4), and the box body (10) is also provided with a cold air inlet (6).

2. The pellet cooling and screening integrated device according to claim 1, characterized in that: The elastic component comprises a plurality of guide sleeves fixedly connected to the base (1) and a plurality of guide shafts fixedly connected to the box (10), each guide sleeve being matched with the guide shaft in a one-to-one manner, and a vibration spring (3) being installed on the outer side of each set of matched guide sleeve and guide shaft structures, and the vibration motor (2) is arranged at the bottom of the box (10).

3. The pellet cooling and screening integrated device according to claim 1, characterized in that: The discharge ends of the two defective product discharge ports (16) are staggered.

4. The pellet cooling and screening integrated device according to claim 1, characterized in that: The right end of the lower material guide plate (11) is bent upward and connected to the bottom of the lower screen plate (5).

5. The pellet cooling and screening integrated device according to any one of claims 1 to 4, characterized in that: There are three cold air inlets (6), two of which are arranged on the left wall of the box body (10), and the other cold air inlet (6) is arranged on the right wall of the box body (10).

6. The pellet cooling and screening integrated device according to claim 5, characterized in that: The two cold air inlets (6) located on the left wall of the box body (10) are respectively arranged between the upper sieve plate (9) and the upper guide plate (13) and between the lower sieve plate (5) and the lower guide plate (11), and the cold air inlet (6) located on the right wall of the box body (10) is arranged between the middle guide plate (14) and the lower sieve plate (5).

Images