An adjustable flow guiding device for sinter screening

Abstract

This utility model discloses an adjustable flow guiding device for sinter screening, including a chute and a flow guiding mechanism disposed within the chute. The flow guiding mechanism includes a flow dividing platform and a support plate. The flow dividing platform is located in the middle of the discharge end of the chute, and the support plate is disposed in the middle of the flow dividing platform. A rotating shaft is disposed at the upper end of the support plate, and adjusting plates are disposed on both sides of the support plate. One end of the adjusting plate is rotatably connected to the rotating shaft. An electric push rod is inclinedly disposed between the adjusting plate and the support plate, and the push rod end of the electric push rod abuts against the lower surface of the adjusting plate. In summary, this utility model has the advantages of controllable flow rate, improved screening effect, and reduced return ore rate.

Description

Technical Field

[0001] This utility model relates to the technical field of sinter screening equipment, specifically to an adjustable flow guiding device for sinter screening. Background Technology

[0002] In my country's iron and steel smelting industry, over 75% of blast furnace charge is processed using sintering. After processing, a sinter screening system is used for grading. A vibrating screen separates the mixture of particles of different sizes, thus classifying the particles according to their size. The sinter screening system mainly consists of a silo, a chute, and a vibrating screen. The chute is equipped with a flow guiding device, and the vibrating screen is located below the flow guiding device, with its inlet corresponding to the chute's outlet.

[0003] Existing flow guiding devices generally employ a herringbone structure to split the material flow into two streams, left and right. These two streams are then conveyed to the vibrating screen through the receiving port below the flow guiding device. However, in practical use, the following problems have been observed: Existing chutes are often quite wide. If the flow guiding device only performs simple flow splitting without adjustment capabilities, uneven material distribution between the left and right sides is easily generated during the splitting process. This affects the subsequent material distribution on the vibrating screen, hindering screening and ultimately increasing the cost of secondary screening and reducing screening efficiency. Therefore, developing an adjustable flow guiding device for sinter screening with controllable flow splitting, improved screening effect, and reduced return ore rate is objectively necessary. Utility Model Content

[0004] The purpose of this invention is to provide an adjustable flow guiding device for sinter screening that allows for controllable flow distribution, improves screening efficiency, and reduces return ore rate.

[0005] The purpose of this utility model is achieved as follows: it includes a chute and a flow guiding mechanism disposed within the chute. The flow guiding mechanism includes a flow dividing platform and a support plate. The flow dividing platform is located in the middle of the discharge end of the chute. The support plate is disposed in the middle of the flow dividing platform. A rotating shaft is disposed at the upper end of the support plate. Adjusting plates are disposed on both sides of the support plate. One end of the adjusting plate is rotatably connected to the rotating shaft. An electric push rod is inclinedly disposed between the adjusting plate and the support plate. The push rod end of the electric push rod abuts against the lower surface of the adjusting plate.

[0006] Furthermore, the adjustment plate is equipped with a wear-resistant plate via an elastic element.

[0007] Furthermore, a vibrator is provided on the lower surface of the adjustment plate.

[0008] Furthermore, multiple baffle blocks are arranged alternately inside the feed end of the chute, and the cross-section of the baffle block is a right triangle with the hypotenuse facing upwards.

[0009] Furthermore, two upper limit plates are symmetrically arranged on the side wall of the chute above the regulating plate, and two lower limit plates are symmetrically arranged on both sides of the upper part of the diversion platform.

[0010] Furthermore, a telescopic dust-proof cloth is provided between the suspended end of the adjustment plate and the edge of the corresponding diversion platform.

[0011] Furthermore, the push rod end of the electric actuator is hinged with a pad.

[0012] Furthermore, several balls are evenly embedded on the surface of the pad.

[0013] Furthermore, several stiffening ribs are provided on both sides of the support plate.

[0014] This invention relates to material diversion during sinter screening. The diversion platform is located at the center of the bottom of the chute. Under the action of the diversion platform, two discharge ports are formed in the chute, achieving overall material diversion. When it is necessary to adjust the discharge port diameter, an electric push rod is controlled. The electric push rod drives the adjusting plate through extension and retraction, and the adjusting plate rotates along the shaft. At this time, the actual discharge port diameter is determined by the distance between the suspended end of the adjusting plate and the side wall of the chute. When the adjusting plate rotates, the distance between its suspended end and the side wall of the chute changes accordingly, thereby achieving the function of adjusting the size of the two discharge ports. After adjusting the rotation angle of the adjusting plate according to the actual situation, it can be used. When the sinter in the chute falls, it will first fall onto the two adjusting plates, then fall from the ends of the two adjusting plates, and then be discharged from the two discharge ports respectively. The adjustment and restriction between the suspended end of the adjusting plate and the side wall of the chute adjusts and restricts the discharge port diameter, thereby ensuring that the discharge volume of the two discharge ports meets the requirements and achieves the material distribution effect before screening. In this invention, a diversion platform is used to divert the sintered ore discharge. Then, an adjustable plate with an adjustable rotation angle is used to adjust the diameter of the two discharge ports, ensuring that the discharge volume at each port meets the feeding requirements. This achieves controllable discharge flow rate, satisfies the feed requirements of subsequent screening processes, ensures the material distribution needs of the vibrating screen, and thus improves screening efficiency, reduces return ore rate and handling volume, and lowers the screening and handling costs of sintered ore. Furthermore, this device is simple to install, maintain, and operate, with low maintenance costs, and can significantly improve the screening efficiency of sintered ore. In summary, this invention has the advantages of controllable discharge flow rate, improved screening efficiency, and reduced return ore rate. Attached Figure Description

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

[0016] Figure 2 for Figure 1 A magnified structural diagram of node A in the middle;

[0017] In the diagram: 1-Cheet, 2-Diverter, 3-Support plate, 4-Rotating shaft, 5-Adjusting plate, 6-Electric push rod, 7-Elastic element, 8-Wear-resistant plate, 9-Vibrator, 10-Blocking block, 11-Upper limit plate, 12-Lower limit plate, 13-Telescopic dustproof cloth, 14-Pad plate, 15-Ball bearing, 16-Firming plate. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings, but this description is not intended to limit the present invention in any way. Any changes or improvements made based on the present invention shall fall within the protection scope of the present invention.

[0019] like Figures 1-2 As shown, this utility model includes a chute 1 and a flow guiding mechanism disposed within the chute 1. The flow guiding mechanism includes a flow diversion platform 2 and a support plate 3. The flow diversion platform 2 is located in the middle of the discharge end of the chute 1. The support plate 3 is disposed in the middle of the flow diversion platform 2. A rotating shaft 4 is disposed at the upper end of the support plate 3. Adjusting plates 5 are disposed on both sides of the support plate 3. One end of the adjusting plate 5 is rotatably connected to the rotating shaft 4. An electric push rod 6 is obliquely disposed between the adjusting plate 5 and the support plate 3. The base of the electric push rod 6 is fixedly connected to the support plate 3. The push rod end of the electric push rod 6 abuts against the lower surface of the adjusting plate 5.

[0020] This invention is used for material diversion during sinter screening. The diversion platform 2 is located at the center of the bottom of the chute 1. Under the action of the diversion platform 2, two discharge ports are formed in the chute 1, achieving overall material diversion. When it is necessary to adjust the discharge port diameter, the electric push rod 6 is controlled. The electric push rod 6 drives the adjusting plate 5 through the extension and retraction of the push rod, and the adjusting plate 5 rotates along the rotating shaft 4. At this time, the actual diameter of the discharge port is determined by the distance between the suspended end of the adjusting plate 5 and the side wall of the chute 1. When the adjusting plate 5 rotates, the distance between its suspended end and the side wall of the chute 1 changes accordingly, thereby achieving the function of adjusting the size of the two discharge ports. After adjusting the rotation angle of the adjusting plate 5 according to the actual situation, it can be used. When the sintered ore in the chute 1 falls, it will first fall onto the two adjusting plates 5, and then fall from the ends of the two adjusting plates 5, and then be discharged from the two discharge ports respectively. The distance between the suspended end of the adjusting plate 5 and the side wall of the chute 1 adjusts and restricts the discharge port diameter, thereby ensuring that the discharge volume of the two discharge ports meets the requirements and achieves the material distribution effect before screening.

[0021] In this invention, a diversion platform 2 is used to divert the sintered ore output, and an adjustable plate 5 with an adjustable rotation angle is used to adjust the diameter of the two discharge ports, so that the output of each discharge port meets the feeding requirements, achieving the goal of controllable discharge port flow rate, meeting the feeding requirements of subsequent screening processes, ensuring the material distribution requirements of subsequent vibrating screens, thereby improving screening efficiency, reducing return ore rate and reverse transport volume, and reducing the screening and reverse transport costs of sintered ore. In addition, the installation, maintenance and operation of this device are relatively simple, the maintenance cost is low, and it can significantly improve the screening efficiency of sintered ore.

[0022] Wear-resistant plates 8 are provided on the adjusting plate 5 via elastic elements 7. Elastic elements 7 are existing technology and can be springs or other existing elastic elements. Due to the irregular surface of the sintered ore, there are often sharp protrusions. When the sintered ore falls onto the adjusting plate 5, it is easy to damage the adjusting plate 5, reduce the service life of the adjusting plate 5, and make replacement and maintenance difficult. It also generates large vibrations. Therefore, wear-resistant plates 8 are provided. On the one hand, they have good wear resistance and are not easily damaged. On the other hand, they are buffered by elastic elements 7 to reduce vibrations.

[0023] A vibrator 9 is installed on the lower surface of the regulating plate 5. When the device is running, the sintered ore will pass through the gap between the suspended end of the regulating plate 5 and the side wall of the chute 1. However, due to the different sizes and irregular surfaces of the sintered ore, and the large amount of material, blockage may occur. To solve this problem, the vibrator 9 is installed. The vibrator 9 generates vibration, which is transmitted to the sintered ore, thereby vibrating and clearing the sintered ore, so that the sintered ore can be smoothly diverted in the chute 1.

[0024] Multiple baffle blocks 10 are staggered and arranged in sequence inside the feed end of the chute 1. The cross-section of the baffle block 10 is a right triangle with the hypotenuse facing upward. When the sintered ore enters the chute 1, it will pass through each baffle block 10 in sequence. The baffle blocks 10 have the function of buffering and decelerating the sintered ore, reducing the impact force of the sintered ore on components such as the regulating plate 5, and extending the service life of each component.

[0025] Two upper limit plates 11 are symmetrically arranged on the side wall of the chute 1 above the regulating plate 5, and two lower limit plates 12 are symmetrically arranged on both sides of the upper part of the diversion platform 2. The upper limit plates 11 and lower limit plates 12 are used to limit the rotation angle of the regulating plate 5.

[0026] A telescopic dustproof cloth 13 is installed between the suspended end of the regulating plate 5 and the edge of the corresponding diversion platform 2. In actual operation, some sinter may fly under the regulating plate 5, causing damage to the electric push rod 6 and the support plate 3. To avoid this problem, the telescopic dustproof cloth 13 is installed. It can extend and retract itself without affecting the normal use of the regulating plate 5, and at the same time, it can prevent sinter from flying under the regulating plate 5, thus protecting the electric push rod 6 and the support plate 3.

[0027] A pad 14 is hinged to the end of the electric push rod 6. During operation, the end of the electric push rod 6 rests against the lower surface of the adjusting plate 5. When the push rod of the electric push rod 6 retracts, the adjusting plate 5 rotates downwards under its own weight and the weight of the sintered ore on it. Conversely, when the push rod of the electric push rod 6 extends, it rotates upwards over the weight of the adjusting plate 5 and the weight of the sintered ore. During this process, the end of the electric push rod 6 remains only against the lower surface of the adjusting plate 5, resulting in relative sliding. Due to the small contact area, the force on the adjusting plate 5 is relatively large, which can scratch the adjusting plate 5 and even damage it, reducing its service life. To avoid this problem, the pad 14 is provided. The pad 14 has a large contact area with the adjusting plate 5, significantly reducing the wear rate of the adjusting plate 5 and extending its service life.

[0028] Preferably, a plurality of balls 15 are uniformly embedded on the surface of the pad 14. The arrangement of the balls 15 changes the rigid contact and friction between the pad 14 and the adjusting plate 5 into rolling between the balls 15 and the adjusting plate 5, which can further reduce wear and improve the smoothness of relative displacement.

[0029] Several stiffeners 16 are provided on both sides of the support plate 3. When the device is in use, the support plate 3 is used to support the adjusting plate 5. The sintered ore entering the chute 1 will fall onto the adjusting plate 5. The support plate 3 will be subjected to a large and unstable torque. The stiffeners 16 are provided to improve its service life and to improve the rigidity and strength of the support plate 3.

Claims

1. An adjustable flow guiding device for sinter screening, comprising a chute (1) and a flow guiding mechanism disposed within the chute (1), characterized in that: The flow guiding mechanism includes a flow divider (2) and a support plate (3). The flow divider (2) is located in the middle of the discharge end of the chute (1). The support plate (3) is set in the middle of the flow divider (2). A rotating shaft (4) is provided at the upper end of the support plate (3). Adjusting plates (5) are provided on both sides of the support plate (3). One end of the adjusting plate (5) is rotatably connected to the rotating shaft (4). An electric push rod (6) is inclined between the adjusting plate (5) and the support plate (3). The base of the electric push rod (6) is fixedly connected to the support plate (3). The push rod end of the electric push rod (6) abuts against the lower surface of the adjusting plate (5).

2. The adjustable flow guiding device for sinter screening according to claim 1, characterized in that: The adjustment plate (5) is provided with a wear-resistant plate (8) through an elastic element (7).

3. The adjustable flow guiding device for sinter screening according to claim 1, characterized in that: A vibrator (9) is provided on the lower surface of the adjusting plate (5).

4. The adjustable flow guiding device for sinter screening according to claim 1, characterized in that: Multiple baffle blocks (10) are arranged alternately in the feed end of the chute (1). The cross section of the baffle block (10) is a right triangle with the hypotenuse facing upward.

5. The adjustable flow guiding device for sinter screening according to claim 1, characterized in that: Two upper limit plates (11) are symmetrically arranged on the side wall of the chute (1) above the regulating plate (5), and two lower limit plates (12) are symmetrically arranged on both sides of the upper part of the diversion platform (2).

6. The adjustable flow guiding device for sinter screening according to claim 1, characterized in that: A telescopic dustproof cloth (13) is provided between the suspended end of the adjustment plate (5) and the edge of the corresponding diversion platform (2).

7. The adjustable flow guiding device for sinter screening according to claim 1, characterized in that: The push rod end of the electric push rod (6) is hinged with a pad (14).

8. The adjustable flow guiding device for sinter screening according to claim 7, characterized in that: The surface of the pad (14) is uniformly embedded with a number of balls (15).

9. The adjustable flow guiding device for sinter screening according to claim 1, characterized in that: Several stiffeners (16) are provided on both sides of the support plate (3).

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