Environment-friendly dust and impurity removal drum screen

Abstract

The utility model relates to the technical field of material screening and purifying equipment, in particular to an environment-friendly dust and impurity removing drum screen which comprises a shell, two supporting frames, two mounting rods, a first rotating shaft, idler wheels and a screen drum, the bottom of the shell is fixedly connected with the two supporting frames, and the two sides of the interior of the shell are each provided with the two mounting rods; and two first rotating shafts are rotationally arranged on the two mounting rods located at the same horizontal height, the two ends of each first rotating shaft are fixedly connected with rolling wheels, and a screen drum is rotationally arranged between the multiple rolling wheels. A motor is started, a roller drives a screen drum to rotate, meanwhile, a third rotating shaft drives an extrusion wheel to rotate, a discharging frame reciprocates left and right under the action of an elastic piece and the extrusion wheel, materials are evenly shaken off into the screen drum, the materials are prevented from being stacked together during screening, and incomplete dust removal and impurity removal of the materials are prevented. And the dust removal fan sucks the interior of the shell through the guide pipe to remove dust, so that the purpose of removing dust and impurities from the materials is achieved.

Description

Technical Field

[0001] This utility model relates to the field of material screening and purification equipment technology, and in particular to an environmentally friendly dust removal and impurity removal drum screen. Background Technology

[0002] The environmentally friendly dust and impurity removal drum screen is a mechanical device used for material screening and purification, widely applied in industries such as mining, building materials, chemicals, coal, and metallurgy. It is primarily used to remove dust and other impurities from materials, ensuring product purity and reducing environmental pollution.

[0003] Patent CN217569548U discloses a dust removal and impurity removal drum screen. This utility model includes a body with a drum and a drive assembly mounted on it. A negative pressure disc is mounted on the outside of the drum, and a discharge slide plate is installed inside. The drum is connected to the body via a drum connecting frame, which is equipped with a filter screen. The negative pressure disc is connected to the drum and to the drum screen's impurity removal assembly. While this patent utilizes a micro-wind dust removal filter, eliminating the need for a conveyor belt, and offers good dust removal efficiency and a simple, small structure, ensuring one-time separation of chopped straw and dust impurities and avoiding environmental pollution when chopped straw enters the drum screen for filtration, during the dust removal process, the material tends to rotate in one direction after entering the drum screen. This can easily lead to material accumulation, making it difficult for the drum screen to disperse the material during rotation, resulting in incomplete dust and slag removal.

[0004] Therefore, there is a need for an environmentally friendly dust and impurity removal drum screen that can disperse materials. Utility Model Content

[0005] In order to overcome the shortcomings of existing patents in the dust removal and impurity removal process, where materials enter the drum screen and rotate in one direction, which easily leads to material accumulation and the drum screen cannot disperse the materials during rotation, thus making the dust removal and slag removal incomplete, this utility model provides an environmentally friendly dust removal and impurity removal drum screen that can disperse materials.

[0006] Technical Solution: An environmentally friendly dust-removing and impurity-removing drum screen includes a shell, a dust-removing structure, support frames, mounting rods, a first rotating shaft, rollers, a screen cylinder, a cover plate, a motor, a second rotating shaft, gears, a third rotating shaft, and a pulley assembly. Two support frames are fixedly connected to the bottom of the shell. Two mounting rods are installed on each side of the interior of the shell. Two first rotating shafts are rotatably mounted on the two mounting rods at the same horizontal height. Rollers are fixedly connected to both ends of each first rotating shaft. A screen cylinder is rotatably mounted between the rollers. A cover plate is fixedly connected to one side of the interior of the shell, and the cover plate is rotatably connected to one side of the screen cylinder. A dust-removing structure is installed on one side of the shell to absorb and remove dust generated during screen cylinder operation. Two motors are embedded on one side of the shell, and the output shafts of the motors are connected to adjacent first rotating shafts via couplings. Next, a second rotating shaft is rotatably mounted on the mounting rod near the motor. Gears are fixedly connected to both the second rotating shaft and the adjacent first rotating shaft, and the two gears mesh with each other. A third rotating shaft is rotatably mounted on the outer shell, passing through the outer shell and the cover plate. The third rotating shaft is driven by a pulley assembly to the second rotating shaft. It also includes an extrusion wheel, a fixed frame, a guide rail, a slider, a feeding frame, a guide rod, and an elastic element. Two fixed frames are fixedly connected to one side of the outer shell. A guide rail is fixedly connected to the fixed frame, and a guide rod is fixedly connected inside the guide rail. A slider is slidably mounted on both guide rails. The slider is slidably connected to the guide rod, and an elastic element connects the slider and the guide rail. A feeding frame is mounted on the top of the slider, and the feeding frame passes through it. An extrusion wheel is fixedly connected to the end of the third rotating shaft near the feeding frame. The extrusion wheel rotates and contacts the slider.

[0007] In a preferred embodiment of the present invention, the dust removal structure includes a dust removal fan and a duct. The dust removal fan is installed on the side of the outer casing away from the motor. The input end of the dust removal fan is connected to and communicates with two ducts, which penetrate the outer casing.

[0008] In a preferred embodiment of the present invention, a connecting rod and a feeding rod are also included. Multiple connecting rods are fixedly connected to the third rotating shaft, and feeding rods are fixedly connected to the connecting rods. The feeding rods are in contact with the inner wall of the screen cylinder.

[0009] In a preferred embodiment of the present invention, the device further includes a hinge and a baffle plate. A discharge port is provided on the side of the outer shell away from the cover plate. Two hinges are installed on the side of the outer shell away from the cover plate. A baffle plate is installed between the two hinges, and the baffle plate blocks the discharge port on the outer shell.

[0010] In a preferred embodiment of the present invention, a limiting plate is also included. A set of limiting plates is fixedly connected to each of the outer sides of the screen cylinder, and the limiting plates are in contact with the rollers.

[0011] In a preferred embodiment of this utility model, foot pads are also included, with foot pads installed on both sides of the bottom of the support frame.

[0012] Compared with the prior art, this utility model provides an environmentally friendly dust removal and impurity removal drum screen with the following beneficial effects: 1. When the motor is started, the roller drives the screen cylinder to rotate, and at the same time the third rotating shaft drives the extrusion wheel to rotate, so that the feeding frame moves back and forth left and right under the action of the elastic element and the extrusion wheel, so that the material is evenly shaken into the screen cylinder, avoiding the material from piling up during screening, and preventing the material from being incompletely dusted and impurities removed. The dust removal fan draws dust from the inside of the outer shell through the duct to achieve the purpose of dust removal and impurity removal of the material.

[0013] 2. The third rotating shaft drives the material-pushing rod to rotate inside the screen cylinder via the connecting rod. The material-pushing rod pushes the material inside the screen cylinder, causing the material to disperse and avoid accumulation and blockage of the screen holes on the screen cylinder, while also improving the efficiency of material processing. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional cross-sectional view of the outer shell, rollers, and sieve cylinder of this utility model.

[0016] Figure 3 This is a three-dimensional sectional view of the outer shell, dust removal fan, and screen cylinder of this utility model.

[0017] Figure 4 This is a three-dimensional cross-sectional view of the outer shell, motor, and feeding frame of this utility model.

[0018] Figure 5 This is a three-dimensional structural diagram of the screen cylinder, limiting plate, and extrusion wheel of this utility model.

[0019] Figure 6 This is a three-dimensional sectional view of the screen cylinder, connecting rod, and material feeding rod of this utility model.

[0020] Figure 7 This is a three-dimensional structural diagram of the extrusion wheel, slider, and feeding frame of this utility model.

[0021] The above-mentioned drawings include the following reference numerals: 1. Outer shell; 101. Dust collector fan; 102. Dust duct; 2. Support frame; 3. Mounting rod; 4. First rotating shaft; 5. Roller; 6. Screen cylinder; 601. Cover plate; 7. Motor; 8. Limiting plate; 9. Second rotating shaft; 10. Gear; 11. Third rotating shaft; 12. Pulley assembly; 13. Extrusion wheel; 14. Fixing frame; 15. Guide rail; 16. Slider; 17. Feeding frame; 18. Guide rod; 19. Elastic element; 20. Connecting rod; 21. Feeding rod; 22. Hinge; 23. Baffle plate; 24. Foot pad. Detailed Implementation

[0022] 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.

[0023] Example 1: An environmentally friendly dust and impurity removal drum screen, please refer to... Figures 1-5 and Figure 7The system includes an outer shell 1, a dust removal structure, a support frame 2, mounting rods 3, a first rotating shaft 4, rollers 5, a screen cylinder 6, a cover plate 601, a motor 7, a second rotating shaft 9, a gear 10, a third rotating shaft 11, and a pulley assembly 12. Support frames 2 are fixedly connected to the front and rear sides of the bottom of the outer shell 1. Two vertically distributed mounting rods 3 are installed on each of the left and right sides inside the outer shell 1. Two first rotating shafts 4 are rotatably mounted on the two mounting rods 3 at the same horizontal height. Rollers 5 are fixedly connected to both ends of the first rotating shafts 4. The screen cylinder 6 is rotatably mounted between the eight rollers 5. The outer shell 1 is tilted to the left on the support frame 2. After the material enters the screen cylinder 6, it slides to the left under the action of gravity. Two limiting plates 10 are fixedly connected to each of the left and right sides of the outer casing 1. Rollers 5 are located between two adjacent limiting plates 10, and the limiting plates 10 contact the rollers 5. A cover plate 601 is fixedly connected to the right side of the inner casing 1. The cover plate 601 is rotatably connected to the right side of the screen cylinder 6, covering the right side of the screen cylinder 6. A dust removal structure is installed on the left side of the outer casing 1 to absorb and remove dust generated during the operation of the screen cylinder 6. Two motors 7 are embedded in the lower right side of the outer casing 1. The output shafts of the motors 7 are connected to the adjacent first rotating shaft 4 via a coupling. A second rotating shaft 9 is rotatably mounted on the mounting rod 3 near the motors 7. The second rotating shaft 9 is connected to the adjacent first rotating shaft 4. Gears 10 are fixedly connected to each of the rotating shafts 4 by key connections, and the two gears 10 mesh with each other. A third rotating shaft 11 is rotatably mounted on the outer casing 1, passing through the outer casing 1 and the cover plate 601. The third rotating shaft 11 and the second rotating shaft 9 are driven by a pulley assembly 12, which consists of two pulleys and a flat belt. Pulleys are keyed to both the third rotating shaft 11 and the second rotating shaft 9, and a flat belt is wound between the two pulleys. The diameter of the pulley on the second rotating shaft 9 is smaller than the diameter of the pulley on the third rotating shaft 11, creating a speed difference between the second rotating shaft 9 and the third rotating shaft 11. The bottom sides of the support frame 2 are bolted together. The screen cylinder 6 is equipped with foot pads 24, which are made of rubber. When the screen cylinder 6 is running, the foot pads 24 can cushion the support frame 2 and prevent the support frame 2 from shaking violently. Two fixed frames 14 are fixedly connected to the right side of the outer shell. The top of the fixed frame 14 is fixedly connected to the guide rail 15. The guide rail 18 is fixedly connected inside the guide rail 15. The slider 16 is slidably arranged on the two guide rails 15. The slider 16 is slidably connected to the guide rail 18. An elastic element 19 is connected between the slider 16 and the guide rail 15. The top of the slider 16 is equipped with a feeding frame 17, which is through. The end of the third rotating shaft 11 near the feeding frame 17 is fixedly connected to the extrusion wheel 13. The extrusion wheel 13 rotates and contacts the slider 16.

[0024] Please see Figure 1 and Figure 2The dust removal structure includes a dust removal fan 101 and a duct 102. The dust removal fan 101 is installed on the right side of the outer casing 1 by bolt connection. The input end of the dust removal fan 101 is connected to and communicates with two ducts 102, which penetrate the outer casing 1.

[0025] Please see Figure 1 It also includes hinges 22 and baffles 23. A discharge port is provided on the lower left side of the outer casing 1. Two hinges 22 are installed on the left side of the outer casing 1. A baffle 23 is installed between the two hinges 22. The baffle 23 blocks the discharge port on the outer casing 1.

[0026] When a drum screen is needed to remove impurities and dust from materials, first connect the output end of the dust collector 101 to the dust collection container, pour the material into the feeding frame 17, and then start the motor 7. The output shaft of the motor 7 drives the first rotating shaft 4 to rotate through the coupling. The first rotating shaft 4 drives the roller 5 to rotate, and the roller 5 drives the screen cylinder 6 to rotate. At the same time, one of the first rotating shafts 4 drives the second rotating shaft 9 to rotate through the gear 10. The second rotating shaft 9 drives the third rotating shaft 11 to rotate through the pulley assembly 12. The third rotating shaft 11 drives the extrusion roller 13 to rotate. The rotation of the extrusion roller 13 extrudes the slider 16 and the feeding frame 17, which slide to the right under the guidance of the guide rod 18. The slider 16 extrudes the elastic element 19, causing it to deform. When the extrusion roller 13 separates from the slider 16, the elastic element 19 returns to its original shape, causing the slider 16 to slide to the left and reset, thereby allowing the feeding frame 17 to be repositioned by the elastic element 19. Under the action of the extrusion roller 13, the material moves back and forth, and the material in the feeding frame 17 is evenly shaken into the screen cylinder 6 to avoid the material from piling up during screening. After the material enters the screen cylinder 6, the dust removal fan 101 is started. The dust removal fan 101 sucks the inside of the outer shell 1 through the duct 102. The screen cylinder 6 rotates to make the material tumble. Small particles and impurities in the material fall down through the holes on the screen cylinder 6 and then fall out from the bottom of the outer shell 1. The dust in the material flies up when it tumbles and is sucked into the dust removal fan 101 through the duct 102 and then collected through the collection container to achieve the purpose of dust removal and impurity removal of the material, thereby meeting the environmental protection requirements. When the material in the screen cylinder 6 moves to the left side, the material has completed the dust removal and impurity removal operation. The baffle plate 23 is flipped up to open the discharge port on the outer shell 1, and the material is discharged through the discharge port on the outer shell 1.

[0027] Example 2: Based on Example 1, please refer to... Figure 6 It also includes a connecting rod 20 and a material-pulling rod 21. Three connecting rods 20 are fixedly connected to the third rotating shaft 11, and a material-pulling rod 21 is fixedly connected to the connecting rod 20. The material-pulling rod 21 is arc-shaped and fits against the inner wall of the screen cylinder 6.

[0028] When the pulley assembly 12 drives the third rotating shaft 11 to rotate, the third rotating shaft 11 drives the material-pushing rod 21 to rotate along the inner wall of the screen cylinder 6 through the connecting rod 20. Due to the speed difference between the second rotating shaft 9 and the third rotating shaft 11, the material-pushing rod 21 pushes the material in the screen cylinder 6. The material-pushing rod 21 disperses the material, avoiding accumulation and blockage of the screen holes on the screen cylinder 6, and at the same time, it can improve the efficiency of material processing.

[0029] The above embodiments are provided for those skilled in the art to implement or use the present invention. Those skilled in the art can make various modifications or changes to the above embodiments without departing from the inventive concept of the present invention. Therefore, the protection scope of the present invention is not limited to the above embodiments, but should be the maximum scope that conforms to the innovative features mentioned in the claims.

Claims

1. An environmentally friendly dust removal and impurity removal drum screen, comprising a shell (1), a dust removal structure, a support frame (2), mounting rods (3), a first rotating shaft (4), rollers (5), a screen cylinder (6), a cover plate (601), a motor (7), a second rotating shaft (9), a gear (10), a third rotating shaft (11), and a pulley assembly (12). Two support frames (2) are fixedly connected to the bottom of the shell (1). Two mounting rods (3) are installed on each side inside the shell (1). Two first rotating shafts (4) are rotatably arranged on the two mounting rods (3) at the same horizontal height. Rollers (5) are fixedly connected to both ends of the first rotating shafts (4). A screen cylinder (6) is rotatably arranged between the multiple rollers (5). A cover plate (601) is fixedly connected to one side inside the shell (1). The outer casing (1) is rotatably connected to one side of the screen cylinder (6). A dust removal structure is installed on one side of the outer casing (1). The dust removal structure is used to absorb and remove the dust generated by the screen cylinder (6) during operation. Two motors (7) are embedded on one side of the outer casing (1). The output shaft of the motor (7) is connected to the adjacent first rotating shaft (4) through a coupling. A second rotating shaft (9) is rotatably arranged on the mounting rod (3) near the motor (7). Gears (10) are fixedly connected to both the second rotating shaft (9) and the adjacent first rotating shaft (4). The two gears (10) mesh with each other. A third rotating shaft (11) is rotatably arranged on the outer casing (1). The third rotating shaft (11) passes through the outer casing (1) and the cover plate (601). The third rotating shaft (11) and the second rotating shaft (9) are driven by a pulley assembly (12). Its characteristic is that... It also includes an extrusion wheel (13), a fixed frame (14), a guide rail (15), a slider (16), a feeding frame (17), a guide rod (18), and an elastic element (19). Two fixed frames (14) are fixedly connected to one side of the outer shell (1). A guide rail (15) is fixedly connected to the fixed frame (14). A guide rod (18) is fixedly connected inside the guide rail (15). A slider (16) is slidably arranged on both guide rails (15). The slider (16) is slidably connected to the guide rod (18). An elastic element (19) is connected between the slider (16) and the guide rail (15). A feeding frame (17) is installed on the top of the slider (16). The feeding frame (17) passes through. An extrusion wheel (13) is fixedly connected to one end of the third rotating shaft (11) near the feeding frame (17). The extrusion wheel (13) rotates and contacts the slider (16).

2. The environmentally friendly dust removal and impurity removal drum screen according to claim 1, characterized in that, The dust removal structure includes a dust removal fan (101) and a duct (102). The dust removal fan (101) is installed on the side of the outer shell (1) away from the motor (7). The input end of the dust removal fan (101) is connected to and communicates with two ducts (102), which penetrate the outer shell (1).

3. The environmentally friendly dust removal and impurity removal drum screen according to claim 2, characterized in that, It also includes a connecting rod (20) and a material-pulling rod (21). Multiple connecting rods (20) are fixedly connected to the third rotating shaft (11). A material-pulling rod (21) is fixedly connected to the connecting rod (20). The material-pulling rod (21) is in contact with the inner wall of the screen cylinder (6).

4. The environmentally friendly dust removal and impurity removal drum screen according to claim 3, characterized in that, It also includes hinges (22) and baffles (23). The outer shell (1) has a discharge port on the side away from the cover plate (601). Two hinges (22) are installed on the side of the outer shell (1) away from the cover plate (601). A baffle (23) is installed between the two hinges (22). The baffle (23) blocks the discharge port on the outer shell (1).

5. An environmentally friendly dust removal and impurity removal drum screen according to claim 4, characterized in that, It also includes a limiting plate (8). A set of limiting plates (8) are fixedly connected to each of the two outer sides of the screen cylinder (6), and the limiting plates (8) are in contact with the rollers (5).

6. An environmentally friendly dust removal and impurity removal drum screen according to claim 5, characterized in that, It also includes foot pads (24), and foot pads (24) are installed on both sides of the bottom of the support frame (2).

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