Anti-clogging sand screening device

Abstract

The utility model discloses a sand screening device of preventing block, including the base of L type setting, the top fixedly connected with support frame of base, the lateral wall fixedly connected with side plate of base, be rotated and be connected with screening cylinder through the pivot on support frame, the pivot is hollow through arrangement, the other end of screening cylinder is clamped and is located in side plate end, the hinged door of opening and closing is connected on screening cylinder. The utility model belongs to sand screening equipment technical field, and specifically is a sand screening device of preventing block that solves the problem that although the rotary screen cylinder can reduce material accumulation, but the sticky sandy soil still easily adheres in the sieve hole inner wall, and the blockage phenomenon still exists after long -term operation, lacks the regulation and control to material flow rate, leads to the partial load of screen cylinder too big, aggravates the problem of the risk of blockage.

Description

Technical Field

[0001] This utility model belongs to the technical field of sand screening equipment, and in particular relates to a sand screening device that prevents clogging. Background Technology

[0002] In the fields of construction, landscaping and engineering, sand screening is a common material processing procedure used to separate impurities from sand and gravel or to classify them by particle size. Traditional sand screening devices usually use fixed screens or vibrating screens, which are prone to clogging, resulting in reduced screening efficiency and even requiring frequent shutdowns for cleaning, which seriously affects production efficiency. Existing sand screening equipment often suffers from problems such as uneven feeding and difficulty in removing residual materials inside the screen cylinder, further exacerbating the risk of clogging.

[0003] To address the aforementioned issues, some improvements have been proposed in the existing technology, such as the design of using a rotating screen cylinder in conjunction with a vibration mechanism. However, such devices still have the following drawbacks: although the rotating screen cylinder can reduce material accumulation, sticky sand can still easily adhere to the inner wall of the screen holes, and clogging still occurs after long-term operation. The lack of control over the material flow rate leads to excessive local load on the screen cylinder, exacerbating the risk of clogging. Utility Model Content

[0004] The technical problem this invention aims to solve is that although the rotating screen cylinder can reduce material accumulation, sticky sand can still easily adhere to the inner wall of the screen holes, and the clogging phenomenon still exists after long-term operation. The lack of control over the material flow rate leads to excessive local load on the screen cylinder, which exacerbates the risk of clogging.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a sand screening device for preventing clogging, comprising an L-shaped base, a support frame fixedly connected to the top of the base, a side plate fixedly connected to the side wall of the base, a screening cylinder rotatably connected to the support frame via a rotating shaft, the rotating shaft being hollow and through, the other end of the screening cylinder being engaged with the end of the side plate, and an opening and closing door hinged to the screening cylinder, and further comprising...

[0006] The feeding assembly is located on one side of the base and includes a feeding cylinder fixedly connected to the outer wall of the base. The lower end of the feeding cylinder is fixedly connected to a conveying pipe. The lower end of the conveying pipe passes through the upper end of the screening cylinder and is rotatably connected to it. The conveying pipe communicates with the feeding cylinder and the screening cylinder.

[0007] A sand screening assembly is located on the top of a base and includes a mounting plate fixedly connected to the top of the base. A servo motor is fixedly mounted on the outer wall of the mounting plate, and a drive gear is fixedly connected to the output end of the servo motor. A driven gear that meshes with the drive gear is fixedly connected to the screening cylinder.

[0008] Furthermore, a screening plate is fixedly connected between the inner walls of the feed cylinder, and a stepper motor is fixedly installed at the bottom of the conveying pipe. The output end of the stepper motor is located inside the feed cylinder and passes through the center of the screening plate, where it is rotatably connected. A propeller blade is fixedly connected to the output end of the stepper motor.

[0009] Furthermore, a cross is fixedly connected to the inner wall of the feed cylinder, and the bottom of the cross is provided with evenly distributed notches. A horizontal plate is fixedly connected to the output end of the stepper motor, and horizontally arranged uprights are fixedly connected to the top of the horizontal plate, with the uprights corresponding to the notches.

[0010] Furthermore, an inner frame is rotatably connected to the inner wall of the screening cylinder, and an inclined column is fixedly connected to the outer wall of the inner frame. The end of the inclined column passes through the lower end of the screening cylinder and is rotatably connected thereto. The lower end of the inclined column is located inside the rotating shaft and is fixedly connected to the outer wall of the support frame.

[0011] Furthermore, the outer wall of the inclined column is fixedly connected with two symmetrically distributed connecting rods, and the ends of the connecting rods are fixedly connected with scrapers, the outer wall of the scrapers being in contact with the inner wall of the screening cylinder.

[0012] Furthermore, the outer wall of the screening cylinder is provided with a groove, which is arranged in a ring shape, and the top wall of the support frame is provided with balls, which are located inside the groove.

[0013] The beneficial effects of this utility model after adopting the above structure are as follows:

[0014] (1) The propeller blades and the upright rotate synchronously. During the rotation, the upright works in conjunction with the notch at the bottom of the cross to effectively break up the clumps of sand, thereby significantly reducing the probability of sand clogging the screening plate.

[0015] (2) The uniform rotation of the propeller blades feeds the screened sand into the screening cylinder through the conveying pipe at a uniform speed. The operator can flexibly adjust the feed amount according to actual needs. The screening cylinder performs rotational screening operation under the meshing transmission of the drive gear and the driven gear.

[0016] (3) During the operation of the screening cylinder, the inner frame remains stationary, and the scraper on the connecting rod continuously scrapes away the residual sand particles attached to the inner wall of the screening cylinder, effectively preventing the screen holes from clogging. The ball bearings set at the top of the support frame cooperate with the annular groove on the outer wall of the screening cylinder to roll, further enhancing the smoothness of the screen cylinder during rotation and ensuring that the screening operation is carried out efficiently and stably. Attached Figure Description

[0017] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0018] Figure 1 This is a schematic diagram of the overall structure of a sand screening device for preventing clogging proposed in this utility model.

[0019] Figure 2 This is a front view of a sand screening device for preventing clogging proposed in this utility model;

[0020] Figure 3 This is a three-dimensional structural diagram of a sand screening device for preventing clogging proposed in this utility model;

[0021] Figure 4 A cross-sectional view of an anti-clogging sand screening device proposed in this utility model. Figure 1 ;

[0022] Figure 5 A cross-sectional view of an anti-clogging sand screening device proposed in this utility model. Figure 2 .

[0023] In the attached diagram: 1. Base, 2. Support frame, 3. Side plate, 4. Screening cylinder, 5. Opening and closing door, 6. Feeding cylinder, 7. Conveying pipe, 8. Mounting plate, 9. Servo motor, 10. Drive gear, 11. Driven gear, 12. Screening plate, 13. Stepper motor, 14. Propeller blade, 15. Cross, 16. Notch, 17. Horizontal plate, 18. Upright pole, 19. Inner frame, 20. Inclined column, 21. Connecting rod, 22. Scraper, 23. Groove, 24. Ball bearing, 25. Rotating shaft. Detailed Implementation

[0024] like Figure 1-2 As shown, a sand screening device for preventing clogging includes an L-shaped base 1, a support frame 2 fixedly connected to the top of the base 1, a side plate 3 fixedly connected to the side wall of the base 1, a screening cylinder 4 rotatably connected to the support frame 2 via a rotating shaft 25, the rotating shaft 25 being hollow and through, the other end of the screening cylinder 4 being engaged with the end of the side plate 3, and an opening and closing door 5 hinged to the screening cylinder 4. It also includes a feeding assembly and a sand screening assembly, the feeding assembly being located on one side of the base 1, and the sand screening assembly being located on the top of the base 1.

[0025] like Figure 1-5As shown, to facilitate sand feeding, the feeding assembly includes a feeding cylinder 6 fixedly connected to the outer wall of the base 1. A conveying pipe 7 is fixedly connected to the lower end of the feeding cylinder 6. The lower end of the conveying pipe 7 passes through the upper end of the screening cylinder 4 and is rotatably connected to it. The conveying pipe 7 communicates with both the feeding cylinder 6 and the screening cylinder 4. A screening plate 12 is fixedly connected between the inner walls of the feeding cylinder 6. A stepper motor 13 is fixedly installed at the bottom of the conveying pipe 7. The output end of the stepper motor 13 is located inside the feeding cylinder 6 and passes through the center of the screening plate 12, rotatably connected to it. A propeller blade 14 is fixedly connected to the output end of the stepper motor 13. A cross 15 is fixedly connected to the inner wall of the feeding cylinder 6. The bottom of the cross 15 has evenly distributed... A horizontal plate 17 is fixedly connected to the output end of the stepper motor 13 at the notch 16. A horizontally arranged upright rod 18 is fixedly connected to the top of the horizontal plate 17. The upright rod 18 corresponds to the notch 16. The propeller blade 14 and the upright rod 18 rotate synchronously. During the rotation, the upright rod 18 works in conjunction with the notch 16 at the bottom of the cross 15 to effectively break up the clumps of sand, thereby significantly reducing the probability of sand clogging the screening plate 12. The uniform rotation of the propeller blade 14 feeds the screened sand into the screening cylinder 4 at a uniform speed through the conveying pipe 7. The operator can flexibly adjust the feed rate according to actual needs. The screening cylinder 4 performs rotational screening operations under the meshing transmission of the drive gear 10 and the driven gear 11.

[0026] like Figure 1-5 As shown, to reduce sand adhesion during screening, the sand screening assembly includes a mounting plate 8 fixedly connected to the top of the base 1. A servo motor 9 is fixedly mounted on the outer wall of the mounting plate 8, and a drive gear 10 is fixedly connected to the output end of the servo motor 9. A driven gear 11 meshing with the drive gear 10 is fixedly connected to the screening cylinder 4. An inner frame 19 is rotatably connected to the inner wall of the screening cylinder 4, and an inclined column 20 is fixedly connected to the outer wall of the inner frame 19. The end of the inclined column 20 passes through the lower end of the screening cylinder 4 and is rotatably connected to it. The lower end of the inclined column 20 is located inside the rotating shaft 25 and is fixedly connected to the outer wall of the support frame 2. Two symmetrically distributed connecting rods are fixedly connected to the outer wall of the inclined column 20. The connecting rod 21 has a scraper 22 fixedly connected to its end. The outer wall of the scraper 22 fits against the inner wall of the screening cylinder 4. The outer wall of the screening cylinder 4 has a groove 23 arranged in an annular shape. The top wall of the support frame 2 has a ball bearing 24 located inside the groove 23. During the operation of the screening cylinder 4, the inner frame 19 remains stationary. The scraper 22 on the connecting rod 21 continuously scrapes away the residual sand particles attached to the inner wall of the screening cylinder 4, effectively preventing the screen holes from clogging. The ball bearing 24 on the top of the support frame 2 rolls in cooperation with the annular groove 23 on the outer wall of the screening cylinder 4, further enhancing the smoothness of the screen cylinder during rotation and ensuring efficient and stable screening operations.

[0027] In practical use, sand is added to the feed cylinder 6, and the stepper motor 13 is turned on to make the propeller blade 14 and the upright 18 rotate simultaneously. The rotation of the upright 18 can break up the clumps of sand with the notch 16 at the bottom of the cross 15, thereby reducing the probability of sand clogging the screening plate 12. After the primary screening by the screening plate 12, the sand is concentrated at the bottom of the screening plate 12 and the feed cylinder 6. The rotation of the propeller blade 14 can uniformly feed the sand into the screening cylinder 4. The amount of sand fed can be controlled according to the situation. Then, the servo motor 9 is turned on, and the screening cylinder 4 rotates under the meshing action of the drive gear 10 and the driven gear 11 to screen the screen. During the rotation of the screening cylinder 4, the inner frame 19 is in a fixed state, so that the scraper 22 can scrape off the sand adhering to the inner wall of the screening cylinder 4, reducing the occurrence of clogging. During the rotation of the screening cylinder 4, the ball bearing 24 rotates inside the groove 23, which increases the stability of the screening cylinder 4 during rotation.

[0028] 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. In conclusion, if those skilled in the art, inspired by this description, design similar structural methods and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A sand screening device for preventing clogging, comprising an L-shaped base (1), a support frame (2) fixedly connected to the top of the base (1), a side plate (3) fixedly connected to the side wall of the base (1), a screening cylinder (4) rotatably connected to the support frame (2) via a rotating shaft (25), the rotating shaft (25) being hollow and through, the other end of the screening cylinder (4) being engaged with the end of the side plate (3), and an opening and closing door (5) hinged to the screening cylinder (4), characterized in that: Also includes The feeding assembly is located on one side of the base (1) and includes a feeding cylinder (6) fixedly connected to the outer wall of the base (1). The lower end of the feeding cylinder (6) is fixedly connected to a conveying pipe (7). The lower end of the conveying pipe (7) passes through the upper end of the screening cylinder (4) and is rotatably connected to it. The conveying pipe (7) communicates with the feeding cylinder (6) and the screening cylinder (4). The sand screening assembly is located on the top of the base (1) and includes a mounting plate (8) fixedly connected to the top of the base (1). A servo motor (9) is fixedly installed on the outer wall of the mounting plate (8). A drive gear (10) is fixedly connected to the output end of the servo motor (9). A driven gear (11) that meshes with the drive gear (10) is fixedly connected to the screening cylinder (4).

2. The anti-clogging sand screening device according to claim 1, characterized in that: A screening plate (12) is fixedly connected between the inner walls of the feed cylinder (6), and a stepper motor (13) is fixedly installed at the bottom of the conveying pipe (7). The output end of the stepper motor (13) is located inside the feed cylinder (6) and passes through the center of the screening plate (12) and is rotatably connected to it. A propeller blade (14) is fixedly connected to the output end of the stepper motor (13).

3. The anti-clogging sand screening device according to claim 2, characterized in that: A cross (15) is fixedly connected to the inner wall of the feed cylinder (6). The bottom of the cross (15) is provided with evenly distributed notches (16). A horizontal plate (17) is fixedly connected to the output end of the stepper motor (13). A horizontally arranged upright (18) is fixedly connected to the top of the horizontal plate (17). The upright (18) corresponds to the notches (16).

4. The anti-clogging sand screening device according to claim 1, characterized in that: The inner wall of the screening cylinder (4) is rotatably connected to an inner frame (19), and the outer wall of the inner frame (19) is fixedly connected to an inclined column (20). The end of the inclined column (20) passes through the lower end of the screening cylinder (4) and is rotatably connected to it. The lower end of the inclined column (20) is located inside the rotating shaft (25) and is fixedly connected to the outer wall of the support frame (2).

5. The anti-clogging sand screening device according to claim 4, characterized in that: The outer wall of the inclined column (20) is fixedly connected with two symmetrically distributed connecting rods (21), and the ends of the connecting rods (21) are fixedly connected with scrapers (22). The outer wall of the scrapers (22) is in contact with the inner wall of the screening cylinder (4).

6. The anti-clogging sand screening device according to claim 5, characterized in that: The outer wall of the screening cylinder (4) is provided with a groove (23) and it is arranged in a ring. The top wall of the support frame (2) is provided with a ball (24) and the ball (24) is located inside the groove (23).

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