Impurity removing and screening structure of belt conveyor

Abstract

The utility model discloses a belt conveyor's impurity removal screening structure, including material conveying line, the conveying line one side be provided with metal detector, the end of conveying line be provided with the impurity removal box, the inside of impurity removal box be provided with first material passageway and second material passageway, first material passageway and second material passageway be provided with the turnover guide mechanism between, the bottom of second material passageway be provided with timing opening and closing mechanism, the inside still be provided with magnetic attraction impurity removal subassembly of second material passageway, the metal detector with controller meet, the controller with turnover guide mechanism and timing opening and closing mechanism meet. Will not influence normal part's raw material's conveying, before reaching, normal raw material can orderly pass first material passageway and shift downward, and when the raw material with impurity enters second material passageway, normal raw material still can pass first material passageway and shift downward, and there is no any influence between two, will not influence the normal conveying of raw material.

Description

Technical Field

[0001] This utility model relates to a purification and screening structure, specifically to a purification and screening structure for a belt conveyor, belonging to the technical field of raw material conveying equipment for cement production. Background Technology

[0002] Cement raw meal removal aims to remove harmful substances from raw materials (limestone, clay, iron ore) to improve the quality of subsequent clinker and production stability. These harmful impurities mainly consist of iron filings, ferrous impurities, and organic matter. This application focuses on the removal of metal fragments. In existing technologies, permanent magnet rollers or electromagnetic separators are typically used to remove iron filings and ferrous impurities from raw meal. These devices are often separate from the raw meal conveyor line, requiring manual transfer from the conveyor line to these devices for removal. Furthermore, due to the large quantity of raw meal, removing impurities from all of it without fine separation would be an extremely large undertaking, significantly impacting production efficiency. However, existing removal equipment lacks the ability for fine separation. Chinese Patent Document No. 202323596162X discloses a metal detection and rejection conveyor, but this equipment requires the conveyor to stop operating before removal can be performed, resulting in low process smoothness.

[0003] Therefore, further improvements are needed. Utility Model Content

[0004] The purpose of this invention is to overcome the above-mentioned technical deficiencies and propose a cleaning and screening structure for belt conveyors, which accurately targets the impurities, significantly improves the cleaning efficiency, and ensures the continuous operation of the conveyor line.

[0005] The technical solution adopted by this utility model is as follows: a screening structure for removing impurities from a belt conveyor, including a material conveying line, a metal detector being installed on one side of the conveying line; a removal box being installed at the end of the conveying line; a first material channel and a second material channel being installed inside the removal box; a tilting guide mechanism being installed between the first material channel and the second material channel; a timed opening and closing mechanism being installed at the bottom of the second material channel; a magnetic removal component being installed inside the second material channel; the metal detector being connected to a controller; and the controller being connected to the tilting guide mechanism and the timed opening and closing mechanism.

[0006] Furthermore, the impurity removal box is located at the lower end of the material conveying line; a partition is provided inside the impurity removal box; the impurity removal box is divided into a first material channel and a second material channel by the partition.

[0007] Furthermore, the partition has an obtuse included angle; the lower end of the partition is connected to the bottom plate of the impurity removal box; the bottom and side of the impurity removal box are respectively provided with discharge ports opposite to the first material channel and the second material channel.

[0008] Furthermore, the flipping guide mechanism includes a flipping guide plate; the flipping guide plate is rotatably connected to the upper end of the impurity removal box; the flipping guide plate is connected to the impurity removal box via a rotating shaft.

[0009] Furthermore, a driven gear is fixedly mounted on the rotating shaft; the flipping guide mechanism also includes a motor mounted on the outside of the impurity removal box; a driving gear is mounted on the motor; the driving gear is located inside the impurity removal box and meshes with the driven gear.

[0010] Furthermore, the upper end of the flipping guide plate is chamfered; the timed opening and closing mechanism includes a lifting plate; the lifting plate is slidably connected to the side of the partition near the second material channel; connection points are provided on both sides of the lifting plate; the impurity removal box is provided with a slotted hole opposite the connection point; a cylinder is provided on the outside of the impurity removal box; the cylinder is connected to the connection point.

[0011] Furthermore, the magnetic adsorption impurity removal component includes several magnetic columns; the magnetic columns are distributed within the second material channel and are disposed on the inner wall of the impurity removal box.

[0012] This invention offers the following advantages: It uses a metal detector to monitor the raw material on the conveyor line in real time. If iron impurities are detected in the raw material in the current area, the time it takes for the raw material to reach the removal box remains constant due to the fixed position of the metal detector and the fixed distance between it and the removal box. After this time, the tilting guide mechanism inside the removal box is activated, allowing the impurity-laden material to enter the second material channel and be temporarily stored for a certain period. The internal magnetic removal component then removes impurities. After the removal time is complete, the timed opening and closing mechanism opens, allowing the removed material to flow downwards. The advantages of this design are: it does not affect the normal conveying of raw material. Before the impurity-laden material arrives, the normal raw material can be orderly transferred downwards through the first material channel. Even after the impurity-laden material enters the second material channel, the normal raw material can still be transferred downwards through the first material channel. There is no interference between the two processes, ensuring normal raw material conveying efficiency. The removal process is also performed in real time, requiring no additional equipment, making it convenient and efficient. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the internal structure of the cleaning box.

[0015] Figure 3 This is a schematic diagram of the flipping guide mechanism.

[0016] Figure 4 This is a schematic diagram of a timed opening and closing mechanism.

[0017] Figure 5 This is a schematic diagram of another state of the cleaning box.

[0018] Wherein: 1 is the material conveying line, 2 is the metal detector, 3 is the impurity removal box, 4 is the first material channel, 5 is the second material channel, 6 is the partition, 7 is the tilting guide plate, 8 is the rotating shaft, 9 is the driven gear, 10 is the motor, 11 is the driving gear, 12 is the lifting plate, 13 is the connection point, 14 is the cylinder, and 15 is the magnetic column. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0020] See Figures 1-5 This application discloses a cleaning and screening structure for a belt conveyor, including a material conveying line 1, a metal detector 2 on one side of the conveying line 1, a cleaning box 3 at the end of the conveying line 1, a first material channel 4 and a second material channel 5 inside the cleaning box 3, a tilting guide mechanism between the first material channel 4 and the second material channel 5, a timed opening and closing mechanism at the bottom of the second material channel 5, and a magnetic cleaning component inside the second material channel 5; the metal detector is connected to a controller; and the controller is connected to the tilting guide mechanism and the timed opening and closing mechanism.

[0021] Furthermore, the impurity removal box 3 is located at the lower end of the material conveying line 1; the impurity removal box 3 is provided with a partition 6; the impurity removal box 3 is divided into a first material channel 4 and a second material channel 5 by the partition 6.

[0022] Specifically, in this embodiment, the impurity removal box 3 is divided into a first material channel 4 and a second material channel 5 by a partition 6. The two are switched by a flipping guide mechanism, and one of them is connected to the material conveyor line 1. When the material falls from the conveyor line 1 into the first material channel 4, it will continue to fall into the subsequent transfer process. If it enters the second material channel 5, it will be closed by a timed opening and closing mechanism. After a certain period of magnetic separation, the timed opening and closing mechanism will open to discharge the material.

[0023] Meanwhile, the tilting guide mechanism is timed and controlled by the metal detector 2 after detecting ferrous impurities. After a fixed time interval, the tilting guide mechanism is activated, ensuring that normal material enters the first material channel 4, while the impure material accurately enters the second material channel 5.

[0024] Furthermore, the partition 6 has an obtuse angle; the lower end of the partition 6 is connected to the bottom plate of the impurity removal box 3; the bottom and side of the impurity removal box 3 are respectively provided with discharge ports opposite to the first material channel 4 and the second material channel 5.

[0025] Furthermore, the flipping guide mechanism includes a flipping guide plate 7; the flipping guide plate 7 is rotatably connected to the upper end of the impurity removal box 3; the flipping guide plate 7 is connected to the impurity removal box 3 via a rotating shaft 8.

[0026] Furthermore, a driven gear 9 is fixedly mounted on the rotating shaft 8; the flipping guide mechanism also includes a motor 10 mounted on the outside of the impurity removal box 3; a driving gear 11 is mounted on the motor 10; the driving gear 11 is located inside the impurity removal box 3 and meshes with the driven gear 9.

[0027] Specifically, in this embodiment, the flipping guide mechanism mainly consists of a flipping guide plate 7, a rotating shaft 8, a driven gear 9, a motor 10, and a driving gear 11. The bottom ends of the flipping guide plate 7 are provided with rotating shafts 8, which are rotatably connected to hinge joints at the upper end of the partition plate 6. A driven gear 9 is sleeved on the rotating shaft 8. The output shaft of the motor 10 passes through the side wall of the impurity removal box and is connected to the driving gear 11. As the driving gear 11 rotates, it drives the driven gear to rotate, causing the flipping guide plate 7 to rotate.

[0028] When the flip guide plate 7 is rotated to the right and into position, it will block the upper entrance of the first material channel 4, and the material can only enter the second material channel 5.

[0029] Furthermore, the upper end of the flipping guide plate 7 is chamfered; the timed opening and closing mechanism includes a lifting plate 12; the lifting plate 6 is slidably connected to the side of the partition plate 6 near the second material channel 5; connection points 13 are provided on both sides of the lifting plate 6; the impurity removal box 3 is provided with a slotted hole opposite to the connection point 13; a cylinder 14 is provided on the outside of the impurity removal box 3; the cylinder 14 is connected to the connection point 13.

[0030] Furthermore, the magnetic impurity removal component includes several magnetic columns 15; the magnetic columns 15 are distributed within the second material channel 5 and are disposed on the inner wall of the impurity removal box 3.

[0031] Specifically, in this embodiment, cylinders 14 are provided on both sides of the outer side of the impurity removal box 3. Since its piston is connected to the connection point 13, when it is working, it can push the lifting plate 12 upward, so that the second material channel 5 can discharge material downward.

[0032] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A material removal and screening structure for a belt conveyor, comprising a material conveying line (1), characterized in that: A metal detector (2) is provided on one side of the conveyor line (1); a cleaning box (3) is provided at the end of the conveyor line (1); a first material channel (4) and a second material channel (5) are provided inside the cleaning box (3); a flipping guide mechanism is provided between the first material channel (4) and the second material channel (5); a timed opening and closing mechanism is provided at the bottom of the second material channel (5); a magnetic cleaning component is also provided inside the second material channel (5); the metal detector is connected to a controller; the controller is connected to the flipping guide mechanism and the timed opening and closing mechanism.

2. The impurity removal and screening structure for a belt conveyor according to claim 1, characterized in that: The impurity removal box (3) is located at the lower end of the material conveying line (1); a partition (6) is provided inside the impurity removal box (3); the impurity removal box (3) is divided into a first material channel (4) and a second material channel (5) by the partition (6).

3. The impurity removal and screening structure for a belt conveyor according to claim 2, characterized in that: The partition (6) has an obtuse angle; the lower end of the partition (6) is connected to the bottom plate of the impurity removal box (3); the bottom and side of the impurity removal box (3) are respectively provided with discharge ports relative to the first material channel (4) and the second material channel (5).

4. The impurity removal and screening structure for a belt conveyor according to claim 3, characterized in that: The flipping guide mechanism includes a flipping guide plate (7); the flipping guide plate (7) is rotatably connected to the upper end of the impurity removal box (3); the flipping guide plate (7) is connected to the impurity removal box (3) through a rotating shaft (8).

5. The impurity removal and screening structure for a belt conveyor according to claim 4, characterized in that: A driven gear (9) is fixedly installed on the rotating shaft (8); the flipping guide mechanism also includes a motor (10) installed on the outside of the impurity removal box (3); a driving gear (11) is installed on the motor (10); the driving gear (11) is located inside the impurity removal box (3) and meshes with the driven gear (9).

6. The impurity removal and screening structure for a belt conveyor according to claim 5, characterized in that: The upper end of the flipping guide plate (7) is chamfered; the timed opening and closing mechanism includes a lifting plate (12); the lifting plate (12) is slidably connected to the side of the partition plate (6) near the second material channel (5); connection points (13) are provided on both sides of the lifting plate (12); the impurity removal box (3) is provided with a slotted hole relative to the connection point (13); a cylinder (14) is provided on the outside of the impurity removal box (3); the cylinder (14) is connected to the connection point (13).

7. The impurity removal and screening structure for a belt conveyor according to claim 6, characterized in that: The magnetic adsorption impurity removal component includes several magnetic columns (15); the magnetic columns (15) are distributed in the second material channel (5) and are set on the inner wall of the impurity removal box (3).

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