A propeller agitator for a waste paper pulping plant
By adopting a servo motor-driven spiral mixing blade and cleaning plate structure in waste paper pulping equipment, the problem of shredded paper being blocked from entering the mixing tank by the protective plate has been solved, realizing automated and efficient shredded paper entry and pre-wetting treatment, improving work efficiency and pulp quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU HAOTIAN KRAFT PAPER CO LTD
- Filing Date
- 2025-07-17
- Publication Date
- 2026-06-23
Smart Images

Figure CN224388577U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of waste paper pulping technology, and in particular to a rotary agitator for waste paper pulping equipment. Background Technology
[0002] As human society develops, the exploitation of Earth's resources has intensified. In order to ensure sustainable development, resource recycling has become an essential means of development. Waste paper recycling can effectively reduce the loss of trees. When recycling waste paper, it is first crushed and then put into a pulping machine for pulping.
[0003] Some small factories use pulpers made by digging a large pit in the ground, placing a mixer inside, setting up a protective plate around the mixer, and installing a spiral mixing device on the mixer. Workers use a small loader or manually to put shredded paper into the mixer. However, due to the presence of the protective plate, a lot of shredded paper falls onto the protective plate and cannot enter the mixing tank. It requires manual pushing of the shredded paper in, which reduces the efficiency of shredded paper entering the mixer. Utility Model Content
[0004] The purpose of this utility model is to solve the following shortcomings in the prior art: due to the presence of the protective plate, a lot of shredded paper falls on the protective plate and cannot enter the mixing tank. It is necessary to manually push the shredded paper in continuously, which reduces the efficiency of shredded paper entering the agitator. Therefore, a vortex agitator for waste paper pulping equipment is proposed.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A rotary agitator for waste paper pulping equipment includes a support frame installed on the ground and a mixing tank installed underground. A protective plate is installed on the mixing tank. A servo motor is installed on the support frame. A spiral mixing blade is installed on the shaft of the servo motor. A cleaning plate is slidably connected to the protective plate. The upper side wall of the cleaning plate is connected to the shaft of the servo motor through a connector. A limit plate is provided on one side of the cleaning plate. The limit plate is attached to the inner side wall of the mixing tank. A limit groove is formed on the bottom side wall of the protective plate. A limit wheel is slidably connected in the limit groove. A bolt is rotatably connected to the center of the limit wheel. One end of the bolt passes through the bottom side wall of the cleaning plate and is fitted with a nut.
[0007] Preferably, the connector includes a connecting plate mounted on the shaft of the servo motor, one end of the connecting plate is fixedly connected to a connecting rod, and the bottom end of the connecting rod is fixedly connected to the cleaning plate.
[0008] Preferably, the bottom sidewall of the limiting plate extends to the bottom sidewall of the mixing tank but does not contact the bottom sidewall.
[0009] Preferably, the sidewall of the protective plate is wrapped with a layer of metal edging.
[0010] Preferably, the cleaning plate has an installation cavity, and a rotating wheel is rotatably connected in the installation cavity, with the rotating wheel closely attached to the outer side wall of the metal edging.
[0011] Preferably, a water tank is installed on the outer wall of the mixing tank, and a drive unit is installed on one side of the cleaning plate. The drive unit includes a battery and a water pump. The water pump inlet is connected to the water tank through a water pipe. The water pump has two water outlets, and each water outlet is connected to a water nozzle installed inside the cleaning plate through a diverter pipe.
[0012] Preferably, the portion of the cleaning plate on the protective plate is inclined.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] Whether the shredded paper is thrown manually or delivered by a forklift, any paper that falls onto the protective plate can enter the mixing drum. Moreover, since the shredded paper is mostly in strips and tends to tangle with each other, only a portion enters the mixing drum while the rest is dragged in, increasing the speed at which the shredded paper enters the mixing drum and thus increasing work efficiency.
[0015] The shredded paper falling onto the protective plate is pre-wetted before being pushed in, thereby increasing the efficiency of the pulp. Attached Figure Description
[0016] Figure 1 This is a front structural diagram of a rotary agitator for waste paper pulping equipment proposed in this utility model;
[0017] Figure 2 This is a schematic diagram of the bottom structure of a rotary agitator for waste paper pulping equipment proposed in this utility model.
[0018] In the diagram: 1 Support frame, 2 Metal edging, 3 Protective plate, 4 Water tank, 5 Connecting plate, 6 Connecting rod, 7 Cleaning plate, 8 Water nozzle, 9 Rotary wheel, 10 Drive component, 11 Water pipe, 12 Diverter pipe, 13 Limiting plate, 14 Limiting wheel, 15 Bolt, 16 Limiting groove. Detailed Implementation
[0019] 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.
[0020] The terms used in this utility model, such as "upper", "lower", "left", "right", "middle" and "one", are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.
[0021] Reference Figures 1-2 A rotary agitator for waste paper pulping equipment includes a support frame 1 installed on the ground and a mixing tank installed underground. The height of the mixing tank is above the ground. A protective plate 3 is installed on the mixing tank. A servo motor is installed on the support frame 1, and a spiral mixing blade is installed on the shaft of the servo motor. A cleaning plate 7 is slidably connected to the protective plate 3. The upper side wall of the cleaning plate 7 is connected to the shaft of the servo motor through a connector. A limit plate 13 is provided on one side of the cleaning plate 7 and is attached to the inner side wall of the mixing tank. A limit groove 16 is formed on the bottom side wall of the protective plate 3. A limit wheel 14 is slidably connected in the limit groove 16. A bolt 15 is rotatably connected at the center of the limit wheel 14. One end of the bolt 15 passes through the bottom side wall of the cleaning plate 7 and is fitted with a nut. When the shaft of the servo motor rotates... The rotating mechanism drives the connecting parts to rotate, thus causing the sweeping plate 7 and the rotating trajectory to be concentric with the protective plate 3. During rotation, the limiting plate 13 and the connecting parts can restrict the sweeping plate 7 from moving outward under the action of centrifugal force. At the same time, the limiting wheel 14 moves within the limiting groove 16, which also plays a limiting role, while maintaining the stability of the sweeping plate 7's rotation. When the sweeping plate 7 rotates, it can sweep the shredded paper on the protective plate 3 into the mixing tank without manual pushing. Whether the shredded paper is thrown manually or delivered by a forklift, as long as it falls on the protective plate 3, it can enter the mixing tank. Moreover, the shredded paper is mostly in strips and will be entangled with each other. Only a portion enters the mixing tank, while the other portion is dragged into the mixing tank, increasing the speed at which the shredded paper enters the mixing tank, thereby increasing work efficiency.
[0022] The connector includes a connecting plate 5 mounted on the shaft of a servo motor. One end of the connecting plate 5 is fixedly connected to a connecting rod 6, and the bottom end of the connecting rod 6 is fixedly connected to a cleaning plate 7. The servo motor drives the connecting plate 5 to rotate, which in turn causes the connecting rod 6 to rotate, ultimately transmitting the driving force to the cleaning plate 7.
[0023] The bottom sidewall of the limiting plate 13 extends to the bottom sidewall of the mixing tank but does not contact the bottom sidewall. In addition to limiting the position, the limiting plate 13 can also clean the pulp adhering to the inner sidewall of the mixing tank and prevent the pulp from solidifying on the sidewall.
[0024] The side wall of the protective plate 3 is wrapped with a metal edging 2. The metal edging 2 can be made of any common metal, such as copper, steel, aluminum, etc. When the metal edging is bent, a small arc will be generated at the bend. This is because the metal edging 2 has a thickness and the deformation of the inner and outer sides is inconsistent. Since the metal surface is smooth, it can effectively reduce the damage caused by friction.
[0025] The cleaning plate 7 has an installation cavity, and a rotating wheel 9 is rotatably connected inside the installation cavity. The rotating wheel 9 is in close contact with the outer wall of the metal edging 2. The rotating wheel 9 can be in close contact with the outer wall of the metal edging 2, so that the entire cleaning plate 7 maintains stability.
[0026] A water tank 4 is installed on the outer wall of the mixing tank. Both the water tank 4 and the support frame 1 are installed on the ground. A drive unit 10 is installed on one side of the sweeping plate 7. The drive unit 10 includes a battery and a water pump. The water pump inlet is connected to the water tank 4 through a water pipe 11. The water pump has two water outlets. Each water outlet is connected to a water nozzle 8 installed inside the sweeping plate 7 through a diverter pipe 12. The battery is a rechargeable battery. When the water pump is started, water in the water tank 4 is drawn out of the water tank 4 and sprayed out of the water nozzle 8 through the diverter pipe 12. On the one hand, some of the shredded paper can be pre-wetted, and on the other hand, the water flow sprayed from the water nozzle 8 can play a propelling role, which helps to push the shredded paper into the mixing tank.
[0027] The portion of the cleaning plate 7 on the protective plate 3 is inclined, which helps the cleaning plate 7 push the shredded paper into the mixing tank.
[0028] The connection between the aforementioned drive components, water pipes, and nozzles is existing technology, similar to cordless water guns used in car washes on the market. The working principle is not described in detail.
[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "connection", "linking", "fixing", etc., should be interpreted broadly.
[0030] 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 rotary agitator for waste paper pulping equipment, comprising a support frame (1) installed on the ground and a mixing tank installed underground, wherein a protective plate (3) is installed on the mixing tank, a servo motor is provided on the support frame (1), and a spiral mixing blade is installed on the shaft of the servo motor, characterized in that... A cleaning plate (7) is slidably connected to the protective plate (3). The upper side wall of the cleaning plate (7) is connected to the shaft of the servo motor through a connector. A limit plate (13) is provided on one side of the cleaning plate (7). The limit plate (13) is attached to the inner side wall of the mixing tank. A limit groove (16) is opened on the bottom side wall of the protective plate (3). A limit wheel (14) is slidably connected in the limit groove (16). A bolt (15) is rotatably connected at the center of the limit wheel (14). One end of the bolt (15) passes through the bottom side wall of the cleaning plate (7) and is fitted with a nut.
2. The rotary agitator for waste paper pulping equipment according to claim 1, characterized in that... The connector includes a connecting plate (5) mounted on the shaft of the servo motor. One end of the connecting plate (5) is fixedly connected to a connecting rod (6), and the bottom end of the connecting rod (6) is fixedly connected to the cleaning plate (7).
3. The rotary agitator for waste paper pulping equipment according to claim 2, characterized in that, The bottom sidewall of the limiting plate (13) extends to the bottom sidewall of the mixing tank but does not contact the bottom sidewall.
4. A rotary agitator for waste paper pulping equipment according to claim 3, characterized in that, The protective plate (3) has a metal edging (2) wrapped around its side wall.
5. A rotary agitator for waste paper pulping equipment according to claim 4, characterized in that, The cleaning plate (7) has an installation cavity, and a rotating wheel (9) is rotatably connected in the installation cavity. The rotating wheel (9) is in close contact with the outer wall of the metal edging (2).
6. A rotary agitator for waste paper pulping equipment according to claim 5, characterized in that, A water tank (4) is installed on the outer wall of the mixing tank. A drive unit (10) is installed on one side of the cleaning plate (7). The drive unit (10) includes a battery and a water pump. The water inlet of the water pump is connected to the water tank (4) through a water pipe (11). The water pump is provided with two water outlets. Each water outlet is connected to a water nozzle (8) installed in the cleaning plate (7) through a diversion pipe (12).
7. A rotary agitator for waste paper pulping equipment according to claim 6, characterized in that, The cleaning plate (7) is inclined on the protective plate (3).