A rotary pulper

Abstract

This utility model belongs to the field of pulping technology, and particularly relates to a rotary pulper, including a base and a rotary drum mounted on the base. The rotary drum is rotatably mounted on the base via a mounting bracket. External gears are fixedly sleeved at both ends of the rotary drum. Rotating mechanisms are provided on both sides of the rotary drum on the base, each rotating mechanism including two rotating gears, all of which mesh with the external gears. One end of the rotary drum has an inlet, and the other end has an outlet. Multiple baffles are fixedly installed at equal intervals on the inner wall of the rotary drum. In this utility model, waste paper continuously moves towards the outlet. During the process of the waste paper being thrashed and moved, the rotating shaft drives the cutters on its surface to rotate. The cutters cut the liquid, effectively crushing the waste paper. Furthermore, because the rotation directions are opposite, the speeds of the two actions have a superimposed effect, achieving a better crushing effect and effectively reducing the length range of the rotary drum.

Description

Technical Field

[0001] This utility model belongs to the field of pulping technology, and particularly relates to a rotary pulping machine. Background Technology

[0002] Pulper is a key piece of equipment in the pulp and paper industry. It is mainly used to break down raw materials such as waste paper, pulp board and damaged paper. The drum pulper is mainly used for fiber separation in the process of waste paper recycling. The waste paper is broken down into pulp by the tumbling and friction generated by the rotation of the drum. The drum is equipped with a lifting plate. After the waste paper is added, it is brought to the top and then dropped by the rotation. Through repeated tumbling and the action of chemicals, the paper is broken down into individual fibers.

[0003] CN223074499U discloses a rotary pulper, wherein the lifting device includes two slide rods, the two slide rods are fixedly installed on the surface of the base plate, and slide plates are slidably connected to the surfaces of the two slide rods. A standing plate is fixedly installed between the two slide plates, and a long groove is formed on the surface of the base plate.

[0004] Horizontal pulpers utilize gravity and inertia to crush waste paper. As the waste paper moves forward, it achieves the crushing effect. This crushing method requires a relatively long drum, and the waste paper must travel a sufficiently long distance to achieve adequate crushing. Utility Model Content

[0005] This invention addresses the technical problem in the prior art where horizontal pulpers require a long drum to achieve sufficient crushing of waste paper as it moves forward. The invention provides a rotary drum pulper.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A rotary pulper includes a base and a rotary drum mounted on the base. The rotary drum is rotatably mounted on the base via a mounting bracket. External gears are fixedly sleeved at both ends of the rotary drum. Rotating mechanisms are provided on both sides of the rotary drum on the base. Each rotating mechanism includes two rotating gears, and multiple rotating gears mesh with external gears. One end of the rotating drum is provided with an inlet, and the other end of the rotating drum is provided with an outlet. Multiple baffles are fixedly installed at equal intervals on the inner wall of the rotating drum. A rotating shaft is rotatably installed inside the rotating drum. Multiple cutters are fixedly connected to the surface of the rotating gear. A filter cylinder is rotatably connected to one end of the rotating shaft. The filter cylinder passes through the outlet via the output cylinder. A second motor is provided at the other end of the rotating shaft.

[0007] Preferably, the second motor is fixedly installed at one end of the rotating drum near the inlet, and the drive end of the second motor is fixedly connected to a drive shaft, which is fixedly connected to the rotating shaft.

[0008] Preferably, a rotating ring for use with a cutter is rotatably mounted on the inner wall of the rotating cylinder, and multiple cutters located on the same plane are fixedly connected to a rotating ring, and the baffle is provided with an opening through which the cutter and the rotating ring pass.

[0009] Preferably, the filter cylinder is fixedly connected to the output cylinder via a beveled ring, and a support plate is fixedly connected to one end of the output cylinder extending out of the outlet. The support plate has holes that cooperate with the output cylinder. The beveled ring is disposed inside the rotating cylinder. The surface of the filter cylinder is provided with leakage holes, and the diameter of the leakage holes in the upper half of the filter cylinder is larger than the diameter of the leakage holes in the lower half.

[0010] Preferably, the two rotating gears on the same side are fixedly connected together by a connecting shaft, which is rotatably mounted on the base by a support column. One end of one of the rotating gears is fixedly provided with a first motor, which is fixedly mounted on the base. The drive end of the first motor is fixedly connected to one end of the connecting shaft.

[0011] Preferably, the mounting bracket is fixedly mounted on the base, and the mounting bracket is rotatably sleeved on the rotating cylinder.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. In this device, the waste paper will continuously move towards the outlet end. During the process of the waste paper being slammed and moved, the rotating shaft drives the cutter on its surface to rotate. The cutter cuts the liquid, which can effectively crush the waste paper. Since the rotation directions are opposite, the speeds of the two have a superposition effect, which can achieve a better crushing effect, thereby effectively reducing the length range of the rotating drum.

[0013] 2. In this device, the crushed waste paper forms pulp that gradually accumulates at one end of the outlet. The pulp is carried to a high place and falls onto the filter cylinder, where it is retained and thus serves as a screening and filtration device. The screened pulp is then output through the output cylinder. Crushing and pulp output can be carried out simultaneously. Attached Figure Description

[0014] Figure 1 This is a front structural diagram of a rotary pulper proposed in this utility model; Figure 2 This is a schematic diagram of the internal structure of the rotating drum; Figure 3 This is a schematic diagram of the rear structure of a rotary pulper proposed in this utility model; Figure 4This is a schematic diagram of the inlet end structure of a rotary pulper proposed in this utility model; Figure 5 This is a schematic diagram of the outlet end structure of a rotary pulper proposed in this utility model.

[0015] In the diagram: 1. Base; 2. Rotating drum; 3. Mounting bracket; 4. External gear; 5. Rotating gear; 6. Connecting shaft; 7. Inlet; 8. First motor; 9. Second motor; 10. Drive shaft; 11. Outlet; 12. Support plate; 13. Output cylinder; 14. Filter cylinder; 15. Rotating shaft; 16. Rotating ring; 17. Cutter; 18. Baffle. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0017] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0018] Reference Figures 1-2 A rotary pulper includes a base 1 and a rotary drum 2 mounted on the base 1. The rotary drum 2 is rotatably mounted on the base 1 via a mounting bracket 3. External gears 4 are fixedly sleeved at both ends of the rotary drum 2. Rotation mechanisms are provided on both sides of the rotary drum 2 on the base 1. The rotation mechanisms include two rotating gears 5, and multiple rotating gears 5 mesh with external gears 4. One end of the rotating drum 2 is provided with an inlet 7, and the other end of the rotating drum 2 is provided with an outlet 11. Multiple baffles 18 are fixedly installed at equal intervals on the inner wall of the rotating drum 2. A rotating shaft 15 is rotatably installed inside the rotating drum 2. Multiple cutters 17 are fixedly connected to the surface of the rotating gear 5. A filter cylinder 14 is rotatably connected to one end of the rotating shaft 15. The filter cylinder 14 passes through the outlet 11 via the output cylinder 13. A second motor 9 is provided at the other end of the rotating shaft 15.

[0019] Reference Figure 2A rotating ring 16, which mates with the cutter 17, is rotatably mounted on the inner wall of the rotating drum 2. Multiple cutters 17 located on the same plane are fixedly connected to a rotating ring 16. An opening is provided on the baffle 18 through which the cutters 17 and the rotating ring 16 pass. The rotating ring 16 fixes the cutters 17 on the same plane together, enhancing the stability of the cutter 17 structure and reducing the internal gap of the rotating drum 2.

[0020] The filter cylinder 14 is fixedly connected to the output cylinder 13 via a beveled ring. A support plate 12 is fixedly connected to one end of the output cylinder 13 extending out of the outlet 11. The support plate 12 has holes that mate with the output cylinder 13. The beveled ring is located inside the rotating cylinder 2. The surface of the filter cylinder 14 has perforations, with the diameter of the perforations in the upper half of the filter cylinder 14 being larger than that in the lower half. The beveled ring reduces the diameter, thus allowing excess liquid to be retained within the filter cylinder 14 during pulp output, resulting in high-concentration pulp being output from the output cylinder 13.

[0021] Reference Figure 1 The second motor 9 is fixedly installed at one end of the rotating drum 2 near the inlet 7. The drive end of the second motor 9 is fixedly connected to the drive shaft 10, which is fixedly connected to the rotating shaft 15. When processing waste paper, the second motor 9 drives the drive shaft 10 to rotate via the drive end. The drive shaft 10 drives the rotating shaft 15 to rotate, and the rotating shaft 15 drives the connected cutters 17 to rotate. The direction of rotation of the rotating shaft 15 is opposite to the direction of rotation of the rotating drum 2, so the speeds of the two rotations can be superimposed, resulting in a better effect on the crushing of waste paper. The rotation speeds of the rotating drum 2 and the rotating shaft 15 are appropriate, and reverse rotation does not affect normal use.

[0022] Two rotating gears 5 on the same side are fixedly connected together by a connecting shaft 6. The connecting shaft 6 is rotatably mounted on the base 1 via a support column. A first motor 8 is fixedly mounted on one end of one of the rotating gears 5. The first motor 8 is fixedly mounted on the base 1, and its drive end is fixedly connected to one end of the connecting shaft 6. The first motor 8 can drive the connecting shaft 6 to rotate through its drive end. The rotating gear 5 meshes with the external gear 4. When the connecting shaft 6 rotates, the two rotating gears 5 connected to the connecting shaft 6 are driven from one side of the rotating drum 2, which in turn drives the fixedly fitted external gear 4 to rotate. Multiple rotating gears 5 are arranged around the rotating drum 2. The symmetrical arrangement of these gears ensures the stability of the rotating drum 2.

[0023] Mounting bracket 3 is fixedly mounted on base 1 and rotatably sleeved on rotating cylinder 2. Mounting bracket 3 is used to support rotating cylinder 2 and can support the rotation of rotating cylinder 2.

[0024] Reference Figures 1-5During use, waste paper is fed into the rotating drum 2 through inlet 7. The rotating drum 2 contains water and chemical reagents. The water is concentrated in the lower part of the rotating drum 2, and the liquid level does not exceed the inlet 7 and outlet 11. During processing, the first motor 8 drives the connecting shaft 6 to rotate through the drive end. The rotating gear 5 located on one side will rotate synchronously. As the rotating gear 5 rotates, it can drive the meshing external gear 4 to rotate. Thus, the external gear 4 drives the rotating drum 2 to rotate. As the rotating drum 2 rotates continuously, the waste paper is soaked in water with added chemical reagents. The waste paper will gradually soften and the structure will become loose. As the rotating drum 2 rotates continuously, a baffle 18 is set on the inner wall of the rotating drum 2. The baffle 18 can carry the waste paper to a high place. The waste paper will fall from the high place. After repeated falling and beating, the waste paper is separated into single fibers.

[0025] The rotating drum 2 is slightly tilted downwards towards the outlet 11, causing the waste paper to continuously move towards the outlet 11. During the process of the waste paper being moved and slammed, the second motor 9 drives the drive shaft 10 to rotate via the drive end. The drive shaft 10 drives the rotating shaft 15 to rotate, and the rotating shaft 15 drives the cutter 17 on its surface to rotate. The direction of rotation of the rotating shaft 15 is opposite to that of the rotating drum 2, so the cutter 17 cuts the liquid. When the waste paper passes by, it can be effectively crushed. Since the rotation direction of the rotating shaft 15 is opposite to that of the rotating drum 2, the speeds of the two have a superposition effect, which allows for a better crushing effect under the driving force of the rotation, effectively improving work efficiency and reducing the length range of the rotating drum 2.

[0026] The shredded waste paper forms pulp that gradually accumulates at one end of outlet 11. The pulp is carried to a high place and falls onto filter cylinder 14. The perforations in the upper part of filter cylinder 14 can screen out pulp that meets the requirements. Because the perforations in the lower part are smaller, most of the liquid leaks down from the lower part, while the pulp is retained in filter cylinder 14, thus playing a screening and filtering role. The screened pulp is then output through output cylinder 13. Shredding and pulp output can be carried out simultaneously.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A drum pulper comprising a base (1) and a drum (2) arranged on the base (1), characterized in that, The rotary drum (2) is rotatably installed on the base (1) through a mounting frame (3), both ends of the rotary drum (2) are fixedly sleeved with an external gear (4), both sides of the base (1) located at both sides of the rotary drum (2) are provided with a rotating mechanism, the rotating mechanism comprises two rotating gears (5), and a plurality of rotating gears (5) are engaged with the external gear (4). One end of the rotary drum (2) is provided with an inlet (7), the other end of the rotary drum (2) is provided with an outlet (11), a plurality of baffles (18) are fixedly installed on the inner wall of the rotary drum (2) at equal intervals, a rotating shaft (15) is rotatably installed in the rotary drum (2), a plurality of cutters (17) are fixedly connected on the surface of the rotating gear (5), one end of the rotating shaft (15) is rotatably connected with a filter cylinder (14), the filter cylinder (14) passes through the outlet (11) through an output cylinder (13), and the other end of the rotating shaft (15) is provided with a second motor (9).

2. A drum pulper according to claim 1, characterized in that The second motor (9) is fixedly installed at the position of one end of the rotary drum (2) close to the inlet (7), the driving end of the second motor (9) is fixedly connected with a driving shaft (10), and the driving shaft (10) is fixedly connected with the rotating shaft (15).

3. A drum pulper according to claim 1, characterized in that A rotating ring (16) used in cooperation with the cutter (17) is rotatably installed on the inner wall of the rotary drum (2), a plurality of cutters (17) located in the same plane are fixedly connected on one rotating ring (16), and the baffle (18) is provided with an opening through which the cutter (17) and the rotating ring (16) pass.

4. A drum pulper according to claim 1, characterized in that The filter cylinder (14) is fixedly connected with the output cylinder (13) through a bevel ring, one end of the output cylinder (13) extending out of the outlet (11) is fixedly connected with a supporting plate (12), the supporting plate (12) is provided with a hole for cooperation with the output cylinder (13), the bevel ring is arranged in the rotary drum (2), the surface of the filter cylinder (14) is provided with a plurality of holes, and the diameter of the holes in the upper half of the filter cylinder (14) is greater than that of the holes in the lower half.

5. A drum pulper according to claim 1, characterized in that The two rotating gears (5) on the same side are fixedly connected together through a connecting shaft (6), the connecting shaft (6) is rotatably installed on the base (1) through a supporting column, one end of one of the rotating gears (5) is fixedly provided with a first motor (8), the first motor (8) is fixedly installed on the base (1), and the driving end of the first motor (8) is fixedly connected with one end of the connecting shaft (6).

6. A drum-type pulper according to claim 1, characterized in that The mounting frame (3) is fixedly installed on the base (1), and the mounting frame (3) is rotatably sleeved on the rotary drum (2).

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