Elevator for cement production

Abstract

The utility model relates to the field of cement production, and discloses an elevator for cement production, which comprises a bucket elevator and a plurality of groups of hoppers connected to a plate chain in the bucket elevator, a feeding nozzle is fixedly mounted on the outer wall of one side, close to the bottom end, of the bucket elevator, and the elevator further comprises a material guide structure arranged in the hoppers, the material guide structure is used for reducing the arching of cement powder when the hopper is overturned and discharged; the sealing structure is arranged on the feeding nozzle and used for sealing the feeding nozzle when the bucket elevator operates; according to the elevator for cement production, powder can be effectively prevented from floating out of the feeding nozzle when the bucket elevator runs, and a good dustproof effect is achieved; meanwhile, the materials can flow in a layered mode and are prevented from being attached to the inner wall of the hopper, and the arching phenomenon is reduced.

Description

Technical Field

[0001] This utility model relates to the field of cement production, specifically to a hoist for cement production. Background Technology

[0002] In cement production, elevators are indispensable equipment used to lift cement materials to different production stages. With the development of the cement industry, the performance requirements for elevators are becoming increasingly stringent. They must not only meet the basic function of efficiently lifting materials but also perform better in dust prevention, preventing material blockage and adhesion. For example, a Chinese patent (patent publication number CN221939278U) proposes a dust-removing elevator for cement production. This patent effectively reduces dust emissions during the lifting process by incorporating a dust-removing structure. However, this patent only addresses dust emissions at the discharge point. When the feeding point is open, powder may escape during operation. It also fails to effectively address the potential arching of cement powder in the elevator hopper and the problem of material adhesion to the hopper's inner wall. Over long-term use, this can easily lead to decreased lifting efficiency and increased equipment maintenance costs. Therefore, we propose an elevator for cement production. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this utility model provides a hoist for cement production, which solves the aforementioned problems.

[0005] (II) Technical Solution

[0006] To achieve the above-mentioned objectives, this utility model provides the following technical solution: a bucket elevator for cement production, comprising a bucket elevator and multiple sets of buckets connected to a chain plate inside the bucket elevator, wherein a feeding nozzle is fixedly installed on the outer wall of the bucket elevator near the bottom end, and further comprising:

[0007] A material guiding structure is installed in the hopper to reduce cement powder arching when the hopper is tilted to discharge material.

[0008] A sealing structure is installed on the feeding nozzle, which is used to seal the feeding nozzle when the bucket elevator is in operation.

[0009] Preferably, the top of the feeding nozzle is horizontal and has a feeding opening, and the feeding nozzle corresponding to the feeding opening is rectangular.

[0010] Preferably, the material guiding structure includes a partition plate, the bottom of the hopper is an arc shape that curves upwards away from the end of the plate chain, the partition plate is installed at an inclination between the inner walls of both sides of the hopper, and the partition plate is in an inclination that fits with the arc bottom of the hopper, the lower end of the partition plate is fixedly connected to the plate chain, and the partition plate divides the interior of the hopper into upper and lower storage chambers.

[0011] Preferably, the material guiding structure further includes: curved slide rail grooves, rollers and scraper strips. Curved slide rail grooves are provided on both sides of the inner wall of the hopper near the bottom. The two sides of the hopper are curved in the same way as the bottom of the hopper. Rollers are rolled and engaged in the curved slide rail grooves on both sides of the hopper. Scraper strips are rotatably installed between the two sets of rollers. The bottom end of the scraper strips is in the shape of an arc that fits against the bottom inner wall of the hopper.

[0012] Preferably, the curved slide rail groove is open at the top of both sides of the hopper, and the top opening of the curved slide rail groove is converging in a narrowing shape towards the top of the hopper.

[0013] Preferably, the closing mechanism includes a crossbar, a threaded screw, a servo motor, and a closing plate. Two sets of parallel crossbars are fixedly installed on the top of the feeding nozzle corresponding to the two sides of the feeding opening. The outer walls of the two sets of crossbars are aligned vertically with the inner walls of the two sides of the feeding opening. Limiting grooves are opened in both crossbars. The two ends of the closing plate are slidably engaged in the limiting grooves opened in the two crossbars. A threaded screw is rotatably installed in one set of crossbars corresponding to the limiting groove, and the threaded screw is threadedly sleeved with the end side of the closing plate. A limiting crossbar is fixedly installed in the other set of crossbars corresponding to the limiting groove and is slidably sleeved with the end side of the closing plate. A servo motor is fixedly installed on the end side of the crossbar with the threaded screw. The output shaft of the servo motor passes through the outer wall of the end side of the crossbar and is fixedly connected to the threaded screw.

[0014] Preferably, the length and width of the sealing plate are both greater than the length and width of the feeding opening on the feeding nozzle, the width of the sealing plate is the same as the top width of the feeding nozzle, and the length of the limiting groove in the crossbar is twice the top width of the feeding nozzle. The inner wall of one end of the limiting groove in the two sets of crossbars is aligned vertically with the outer wall of the side of the feeding nozzle.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, this utility model provides a hoist for cement production, which has the following advantages:

[0017] Excellent dustproof effect: The enclosed structure consists of a crossbar, a threaded screw, a servo motor, and a sealing plate. The servo motor drives the threaded screw to rotate, thereby realizing the lateral movement of the sealing plate. This opens the feeding nozzle during feeding and seals it after feeding, effectively preventing powder from floating out of the feeding nozzle during the operation of the bucket elevator, achieving a good dustproof effect.

[0018] Reduce cement powder arching: The partition plate in the material guiding structure divides the inside of the hopper into upper and lower storage chambers. When the bucket elevator is running, the hopper flips to discharge the material, and the material flows in layers, reducing the occurrence of arching.

[0019] To prevent material adhesion: The bottom of the hopper is curved, and the bottom end of the scraper strip fits into the inner wall of the hopper bottom in an arc shape. Under the action of gravity, the scraper strip and the rollers on both sides move in an arc along the curved slide rail groove, scraping the curved inner wall of the hopper and guiding the cement powder to flow out, thus preventing the material from adhering to the inner wall of the hopper.

[0020] The structure is reasonably designed: the curved slide rail groove is open on both sides of the top of the hopper and the top opening is converging. This ensures that the rollers will not run out when the hopper is turned over, and that the material stored in the curved slide rail groove can fall through the opening without affecting normal operation. At the same time, the size of the closing plate is reasonably designed, and the length of the limiting cross groove in the cross member meets the movement requirements of the closing plate, which can completely expose or block the feeding opening. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a cross-sectional schematic diagram of the bucket elevator of this utility model;

[0023] Figure 3 This is a schematic diagram of the hopper structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the closed structure of this utility model.

[0025] In the diagram: 1. Bucket elevator; 2. Feed nozzle; 3. Bucket; 4. Interlayer horizontal plate; 5. Curved slide rail groove; 6. Roller; 7. Scraper bar; 8. Horizontal bar; 9. Threaded screw; 10. Servo motor; 11. Enclosure plate; 12. Limiting horizontal groove. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-4 A cement production elevator includes a bucket elevator 1 and multiple sets of buckets 3 connected to a chain plate inside the bucket elevator 1. A feeding nozzle 2 is fixedly installed on the outer wall of the bucket elevator 1 near its bottom end. The elevator also includes:

[0028] The material guiding structure installed in the hopper 3 is used to reduce the bridging of cement powder when the hopper 3 is tilted to discharge material;

[0029] A sealing structure is provided on the feeding nozzle 2, which is used to seal the feeding nozzle 2 when the bucket elevator 1 is in operation.

[0030] The top of the feeding nozzle 2 is horizontal and has a feeding opening, and the feeding opening of the feeding nozzle 2 is rectangular.

[0031] The material guiding structure includes a partition plate 4. The bottom of the hopper 3 is curved upwards from the end facing away from the plate chain. The partition plate 4 is installed at an inclination between the inner walls of both sides of the hopper 3, and the partition plate 4 is inclined to fit the curved bottom of the hopper 3. The lower end of the partition plate 4 is fixedly connected to the plate chain. The partition plate 4 divides the interior of the hopper 3 into upper and lower storage chambers. The inclined shape of the partition plate 4 and the curved bottom of the hopper 3 can better guide the material to flow in layers when the hopper 3 is turned over for discharge.

[0032] The material guiding structure also includes: curved slide rail grooves 5, rollers 6, and scraper strips 7. Curved slide rail grooves 5 are provided on both sides of the inner wall of the hopper 3 near the bottom. The two sides of the hopper 3 are curved in the same way as the bottom of the hopper 3. Rollers 6 are rolled and engaged in the curved slide rail grooves 5 on both sides of the hopper 3. Scraper strips 7 are rotatably installed between the two sets of rollers 6. The bottom of the scraper strips 7 is arc-shaped and fits against the bottom inner wall of the hopper 3. The curved slide rail grooves 5 and the bottom of the hopper 3 are curved in the same way as the bottom of the hopper 3. The curved design of the curved slide rail grooves 5 and the bottom of the hopper 3 provides a precise trajectory for the movement of the rollers 6 and the scraper strips 7, ensuring that the scraper strips 7 can always fit against the bottom inner wall of the hopper 3 to perform scraping action.

[0033] The curved slide rail groove 5 has openings at the top of both sides of the hopper 3, and the top opening of the curved slide rail groove 5 converges in a narrowing shape towards the top of the hopper 3. This top opening design allows any small amount of material that accidentally enters the curved slide rail groove 5 during the lifting process to be discharged promptly, preventing material accumulation within the curved slide rail groove 5 from affecting the normal movement of the rollers 6 and scraper strips 7. The converged opening design, while preventing the rollers 6 from detaching, also guides the discharged material, allowing it to fall smoothly back into the hopper 3 or into the discharge channel.

[0034] The closing mechanism includes a horizontal bar 8, a threaded screw 9, a servo motor 10, and a closing plate 11. Two sets of parallel horizontal bars 8 are fixedly installed on the top of the feeding nozzle 2, corresponding to the two sides of the feeding opening. The outer walls of the two sets of horizontal bars 8 are aligned vertically with the inner walls of the two sides of the feeding opening. Limiting grooves 12 are formed in both horizontal bars 8. The two ends of the closing plate 11 are slidably engaged in the limiting grooves 12 formed in the horizontal bars 8. A threaded screw 9 is rotatably installed in one set of horizontal bars 8 corresponding to the limiting groove 12, and the threaded screw 9... The end of the sealing plate 11 is threaded and sleeved. Another set of crossbars 8 is fixedly installed in the limiting cross groove 12, which is slidably sleeved with the end of the sealing plate 11. The end of the crossbar 8, which is correspondingly installed with a threaded screw 9, is fixedly installed with a servo motor 10. The output shaft of the servo motor 10 passes through the outer wall of the end of the crossbar 8 and is fixedly connected to the threaded screw 9. The two sets of parallel crossbars 8 provide a stable support structure for the sliding of the sealing plate 11. The crossbars 8 are aligned vertically with the inner walls on both sides of the feeding opening, which can better ensure the sealing performance when the sealing plate is closed.

[0035] The limiting transverse groove 12 precisely limits the movement of the closing plate 11, ensuring that it can only move laterally along the direction of the transverse bar 8, thus guaranteeing the linearity and accuracy of the movement of the closing plate 11.

[0036] The setting of the limit crossbar, in conjunction with the threaded screw 9, prevents the closing plate 11 from rotating or displacing in other directions during movement, further ensuring the stability and accuracy of the closing plate's movement.

[0037] The length and width of the sealing plate 11 are both greater than the length and width of the feeding opening on the feeding nozzle 2. The width of the sealing plate 11 is the same as the top width of the feeding nozzle 2. The length of the limiting transverse groove 12 in the crossbar 8 is twice the top width of the feeding nozzle 2. The inner side wall of one end of the limiting transverse groove 12 in the two sets of crossbars 8 is aligned vertically with the outer side wall of the feeding nozzle 2. The size of the sealing plate 11 is larger than the feeding opening, which can completely cover the feeding opening, ensuring a good sealing effect and preventing powder leakage.

[0038] Working principle: When using this cement production elevator, material is fed through the feeding opening on the feeding nozzle 2. Initially, the sealing plate 11 covers the top of the flat surface of the feeding nozzle 2, and the outer walls on both sides of the sealing plate 11 are aligned vertically with the outer walls on both sides of the feeding nozzle 2. At this time, the servo motor 10 can be driven to rotate the threaded screw 9. According to the screw principle, the sealing plate 11 can be moved laterally along the limiting transverse groove 12 in the transverse members 8 on both sides. Since the opening length of the limiting transverse groove 12 is twice the top width of the feeding nozzle 2, the sealing plate 11 can be moved to the side until the feeding opening on the bucket elevator 1 is completely exposed, completing the feeding operation. After completion, the servo motor 10 is driven to reverse the threaded screw 9, so that the sealing plate 11 moves laterally to its original position, sealing the feeding nozzle 2 again to prevent powder from floating out through the feeding nozzle 2 during the operation of the bucket elevator 1, further achieving the dust prevention effect.

[0039] When the bucket elevator 1 is running, the internal buckets 3 will flip at the top to discharge material. The internal material of the bucket 3 is divided into two storage layers by the partition plate 4. When the bucket 3 is flipped and the material is discharged, the material will flow in layers to reduce arching. At the same time, under the action of gravity, the scraper strips 7 and the rollers 6 on both sides will bend and move along the curved slide rail groove 5. The scraper strips 7 scrape the curved inner wall of the bucket 3 to guide the discharge of cement powder and prevent material adhesion. At the same time, the top opening of 55 is converging in the direction of the top of the bucket 3 with a narrower diameter. After the bucket 3 is flipped, it can be ensured that the rollers 6 will not run out through the opening of the curved slide rail groove 5. At the same time, the material stored in the curved slide rail groove 5 will also fall out through the opening.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cement production elevator, comprising a bucket elevator (1) and multiple sets of buckets (3) connected to a plate chain inside the bucket elevator (1), wherein a feeding nozzle (2) is fixedly installed on the outer wall of the bucket elevator (1) near the bottom end, characterized in that: Also includes: A material guiding structure is provided in the hopper (3) to reduce the arching of cement powder when the hopper (3) is turned over to discharge material; A closed structure is provided on the feeding nozzle (2) for sealing the feeding nozzle (2) when the bucket elevator (1) is in operation.

2. A cement production elevator as claimed in claim 1, characterized in that: The top of the feeding nozzle (2) is horizontal and has a feeding opening, and the feeding opening of the feeding nozzle (2) is rectangular.

3. The cement production hoist according to claim 1, characterized in that: The material guiding structure includes a partition plate (4). The bottom of the hopper (3) is an arc shape that curves upward away from the end of the plate chain. The partition plate (4) is installed at an inclination between the inner walls of both sides of the hopper (3). The partition plate (4) is in an inclination that fits the arc bottom of the hopper (3). The lower end of the partition plate (4) is fixedly connected to the plate chain. The partition plate (4) divides the interior of the hopper (3) into upper and lower storage chambers.

4. A cement production hoist according to claim 3, characterized in that: The material guiding structure also includes: curved slide rail groove (5), roller (6) and scraper strip (7). Curved slide rail groove (5) is provided on both sides of the inner wall of the hopper (3) near the bottom. The two sides of the hopper (3) are curved in the same way as the bottom of the hopper (3). Rollers (6) are rolled and engaged in the curved slide rail groove (5) on both sides of the hopper (3). Scraper strip (7) is rotatably installed between the two sets of rollers (6). The bottom of the scraper strip (7) is in the arc shape that fits against the bottom inner wall of the hopper (3).

5. A cement production hoist according to claim 4, characterized in that: The curved slide rail groove (5) is open at the top of both sides of the hopper (3), and the top opening of the curved slide rail groove (5) is converging in a narrowing shape towards the top of the hopper (3).

6. A cement production hoist according to claim 2, characterized in that: The closed structure includes a crossbar (8), a threaded screw (9), a servo motor (10), and a closing plate (11). Two sets of parallel crossbars (8) are fixedly installed on the top of the feeding nozzle (2) on both sides corresponding to the feeding opening. The outer walls of the two sets of crossbars (8) are aligned vertically with the inner walls of both sides of the feeding opening. Limiting grooves (12) are opened in both crossbars (8). The two ends of the closing plate (11) are slidably engaged in the limiting grooves (12) opened in the crossbars (8) on both sides. A threaded screw (9) is rotatably installed in the middle of the limiting transverse groove (12) of the crossbar (8), and the threaded screw (9) is threadedly connected to the end side of the closing plate (11). Another set of crossbars (8) is fixedly installed in the limiting transverse groove (12) and is slidably connected to the end side of the closing plate (11). A servo motor (10) is fixedly installed on the end side of the crossbar (8) with the threaded screw (9) installed. The output shaft of the servo motor (10) passes through the end side outer wall of the crossbar (8) and is fixedly connected to the threaded screw (9).

7. A cement production hoist according to claim 6, characterized in that: The length and width of the sealing plate (11) are both greater than the length and width of the feeding opening on the feeding nozzle (2). The width of the sealing plate (11) is the same as the top width of the feeding nozzle (2). The length of the limiting groove (12) in the crossbar (8) is twice the top width of the feeding nozzle (2). The inner wall of one end of the limiting groove (12) in the two sets of crossbars (8) is aligned vertically with the outer wall of the side of the feeding nozzle (2).

Images