Eccentric rotor pulper with good circulating flow effect

Abstract

The utility model relates to the technical field of papermaking pulper equipment, one embodiment of the utility model provides an eccentric rotor pulper with a good circulating flow effect, the eccentric rotor pulper comprises a bottom plate, a shell and a base, the base is fixed on the bottom plate, the shell is rotatably connected to the base, a driving motor is fixed on the bottom surface of the bottom plate, a main stirring assembly is arranged on the bottom plate, and the main stirring assembly is arranged on the bottom plate. The auxiliary rotating assembly is arranged between the shell and the base, the main stirring assembly comprises an inner seat, the inner seat is fixed to the surface of the bottom plate, a transmission cavity is formed in the inner seat, a stirring shaft frame is rotationally connected into the transmission cavity, and the lower end of the stirring shaft frame is connected with the output end of the driving motor. According to the technical scheme, the problems that in the prior art, a large amount of energy is consumed in the transfer process, the proportion of energy actually used for crushing raw materials is relatively low, energy waste is caused, on the other hand, key factors such as stirring, collision, scattering and screening influencing the crushing efficiency are difficult to effectively optimize, and the crushing efficiency is affected are solved. The mechanical action and the stirring efficiency of the impeller are insufficient.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the technical field of paper pulping equipment, and more specifically, to an eccentric rotor pulper with good circulation effect. Background Technology

[0002] In the papermaking industry, hydraulic pulpers are commonly used pulping equipment. They are used to break down various waste raw materials such as pulp boards, waste paper, waste books, waste packaging paper, and newspapers. Whether it's recycling waste raw materials, recycling waste paper, or using pulp boards, a hydraulic pulper is needed to re-pulp the materials to meet the operational requirements of subsequent production equipment. The purpose of pulping is to disperse the raw materials into individual fibers and properly remove impurities to obtain a relatively pure fiber pulp.

[0003] Currently, hydraulic pulpers face the dual challenges of high energy consumption and low efficiency in actual operation. During operation, although the rotor rotation creates a high-speed, turbulent circulation of the pulp, breaking down pulp boards, waste paper, or scrap paper into fibers through vortex hydraulic impact, impeller mechanical tearing, and mechanical dispersing between the impeller and the screen plate, this process has many drawbacks. The dispersing action relies on mechanical shearing, mechanical crushing, and hydraulic shearing, requiring a large amount of electrical energy to maintain the rotor's high-speed rotation and generate sufficient force. However, a significant amount of energy is lost during transmission, resulting in a relatively low proportion of energy actually used for raw material dispersing, leading to energy waste. Furthermore, key factors affecting dispersing efficiency, such as stirring, impact, dispersion, and screening, are difficult to optimize effectively. Insufficient impeller mechanical action and stirring efficiency prevent the raw materials from being quickly and fully dispersed, prolonging dispersing time and reducing production efficiency. Utility Model Content

[0004] To overcome the above-mentioned defects, the embodiments of this disclosure provide an eccentric rotor pulper with good circulation effect, which solves the technical problems of a large amount of energy being lost in the transmission process in the prior art, the proportion of energy actually used for pulping raw materials being relatively low, resulting in energy waste. On the other hand, key factors affecting pulping efficiency such as stirring, impact, dispersing and screening are difficult to be effectively optimized, and the mechanical action of the impeller and the stirring efficiency are insufficient.

[0005] According to one aspect, at least one embodiment of this disclosure provides an eccentric rotor pulper with good flow circulation, comprising:

[0006] The base plate, the outer shell, and the base plate are fixed to the base plate and the outer shell is rotatably connected to the base plate.

[0007] The drive motor and the main stirring assembly are provided, wherein the drive motor is fixed to the bottom surface of the base plate and the main stirring assembly is disposed on the base plate;

[0008] An auxiliary rotation assembly is disposed between the housing and the base;

[0009] The main stirring assembly includes an inner seat, which is fixed to the surface of the base plate. A transmission cavity is formed inside the inner seat, and a stirring shaft frame is rotatably connected inside the transmission cavity. The lower end of the stirring shaft frame is connected to the output end of the drive motor.

[0010] As a further technical solution, a driven shaft is rotatably connected in the inner seat, a spiral blade is provided on the driven shaft, a number of pusher plates are provided at the upper end of the driven shaft, and a transmission wheel is provided at the lower end of the stirring shaft frame and the lower end of the driven shaft. The transmission wheels are connected to each other by a toothed belt.

[0011] As a further technical solution, the auxiliary rotation component includes a track frame, which is arranged around the outer surface of the base, and a slide rail is provided at the bottom of the housing, and the housing is slidably connected to the track frame through the slide rail.

[0012] As a further technical solution, an outer cover is provided at the lower end of the outer surface of the outer shell, an internal gear is provided on the inner surface of the outer cover, a base frame is fixed on the surface of the base plate, and a second motor is installed on the base frame.

[0013] As a further technical solution, the output end of the second motor is provided with a drive gear, which meshes with the internal gear. The top of the housing is provided with a top cover, and the center of the top cover is provided with a feed inlet. Several drive frames are provided around the inner wall of the housing.

[0014] As a further technical solution, a sealing sliding layer is provided around the outer surface of the base, and the sealing sliding layer is connected to the outer shell sliding sleeve.

[0015] As a further technical solution, the pusher plate is fixedly connected at an inclined angle.

[0016] As a further technical solution, the base surface is a sloping structure that slopes to one side, and the discharge pipe at the bottom of the base is located at the lowest position.

[0017] As a further technical solution, the top cover has a downwardly inclined funnel-shaped cross-section.

[0018] As a further technical solution, the cross-section of the drive frame is triangular, and the highest point of the drive frame protrusion is located at the gap connecting the outer shell and the base.

[0019] The beneficial effects of the embodiments disclosed herein are as follows:

[0020] 1. In this disclosure, a main mixing assembly is provided, with an eccentrically designed mixing shaft and driven shaft, which, together with spiral blades and a pusher plate, enhance the mechanical mixing and crushing capabilities. The mixing shaft and driven shaft rotate synchronously via a toothed belt, which can fully exert their respective crushing effects, improve pulping efficiency, and reduce crushing time. Compared with traditional pulpers, this design effectively improves energy utilization, reduces energy consumption, and allows more energy to be used for raw material crushing.

[0021] 2. In this disclosure, an auxiliary rotating component is provided. The combination of the track frame, slide rail, and second motor enables the outer shell to rotate, driving the frame to push the slurry when the outer shell rotates, which enhances the slurry circulation effect and accelerates the mixing speed. The funnel-shaped structure of the top cover facilitates feeding, and the sealing slip layer between the outer shell and the base prevents leakage, ensuring the normal operation of the equipment. This component optimizes key factors affecting the crushing efficiency, such as stirring, impact, dispersing, and screening, and further improves the quality and efficiency of the crushed slurry. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0023] Figure 1 This is a schematic diagram of a structure in one embodiment of the present disclosure;

[0024] Figure 2 This is an isometric drawing of the present disclosure;

[0025] Figure 3 This is an isometric sectional view of the present disclosure;

[0026] Figure 4 This is another isometric sectional view of this disclosure;

[0027] Figure 5 Appendix to this disclosure Figure 3 Enlarged view of part A in the middle;

[0028] In the diagram: 1. Base plate; 2. Outer shell; 3. Base; 4. Drive motor; 5. Main stirring assembly; 5-1. Inner seat; 5-2. Transmission chamber; 5-3. Stirring shaft frame; 5-4. Driven shaft; 5-5. Spiral blade; 5-6. Pusher plate; 5-7. Transmission wheel; 6. Auxiliary rotating assembly; 6-1. Track frame; 6-2. Slide rail; 6-3. Outer cover; 6-4. Internal gear; 6-5. Base frame; 6-6. Second motor; 6-7. Drive gear; 6-8. Top cover; 6-9. Feed inlet; 6-10. Drive frame; 7. Sealing slide layer. Detailed Implementation

[0029] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0030] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0031] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0032] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0033] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to 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 disclosure.

[0034] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0035] like Figures 1-5As shown, it illustrates an eccentric rotor pulper with good circulation effect in one embodiment of the present disclosure, comprising:

[0036] The base plate 1, the outer shell 2, and the base 3 are fixed on the base plate 1, and the outer shell 2 is rotatably connected to the base 3.

[0037] The drive motor 4 and the main stirring assembly 5 are fixed on the bottom surface of the base plate 1, and the main stirring assembly 5 is set on the base plate 1.

[0038] Auxiliary rotation component 6 is disposed between the outer shell 2 and the base 3;

[0039] The main mixing assembly 5 includes an inner seat 5-1, which is fixed to the surface of the base plate 1. A transmission cavity 5-2 is provided inside the inner seat 5-1. A mixing shaft frame 5-3 is rotatably connected inside the transmission cavity 5-2. The lower end of the mixing shaft frame 5-3 is connected to the output end of the drive motor 4. A driven shaft 5-4 is rotatably connected in the inner seat 5-1. A spiral blade 5-5 is provided on the driven shaft 5-4. Several pusher plates 5-6 are provided on the upper end of the driven shaft 5-4. A transmission wheel 5-7 is provided at the lower end of both the mixing shaft frame 5-3 and the lower end of the driven shaft 5-4. The transmission wheels 5-7 are connected by a toothed belt.

[0040] In some examples, to achieve the effect of eccentric coaxial pulping, a main mixing assembly 5 is designed. This assembly includes an inner seat 5-1 fixed to the surface of the base plate 1. The inner seat 5-1 extends to one side from the center of the base 3 and has a transmission cavity 5-2 inside. A mixing shaft frame 5-3 and a driven shaft 5-4 are rotatably connected in the transmission cavity 5-2. The driven shaft 5-4 is located at the center of the base 3. The mixing shaft frame 5-3 is off-center, forming an eccentric effect. The mixing shaft frame 5-3 is connected to the output end of the drive motor 4. The lower end of the mixing shaft frame 5-3 and the lower end of the driven shaft 5-4 are both provided with transmission wheels 5-7. The transmission wheels 5-7 are connected by a toothed belt. The drive motor 4 can control the mixing shaft frame 5-3 and the driven shaft 5-4 to rotate synchronously. The upper end of the driven shaft 5-4 is provided with a spiral blade 5-5 and several pusher plates 5-6. When the spiral blade 5-5 rotates, it can drive the material to move upward, and then, together with the pusher plates 5-6, it can disperse the material downward, resulting in a good pulping effect.

[0041] like Figures 1-5As shown, this embodiment proposes an auxiliary rotation component 6 including a track frame 6-1, which is arranged around the outer surface of the base 3. A slide rail 6-2 is provided at the bottom of the outer shell 2, and the outer shell 2 is slidably connected to the track frame 6-1 through the slide rail 6-2. An outer cover 6-3 is provided at the lower end of the outer surface of the outer shell 2, and an internal gear 6-4 is provided on the inner surface of the outer cover 6-3. A base frame 6-5 is fixed on the surface of the base plate 1, and a second motor 6-6 is installed on the base frame 6-5. A drive gear 6-7 is provided at the output end of the second motor 6-6, and the drive gear 6-7 meshes with the internal gear 6-4. A top cover 6-8 is provided at the top of the outer shell 2, and a feed port 6-9 is opened in the center of the top cover 6-8. Several drive frames 6-10 are arranged around the inner wall of the outer shell 2.

[0042] In some examples, to enhance the pulping effect, an auxiliary rotating component 6 is designed. This component includes a track frame 6-1 arranged around the outer surface of the base 3, and a slide rail 6-2 at the bottom of the outer shell 2 that allows it to slide within the track frame 6-1. The base 3 remains fixed, and the outer shell 2 can rotate on the base 3. An outer cover 6-3 is provided at the lower end of the outer surface of the outer shell 2, and an internal gear 6-4 is provided on the inner surface of the outer cover 6-3. A second motor 6-6 is installed on the base frame 6-5 fixed to the surface of the base plate 1. The drive gear 6-7 at the output end of the second motor 6-6 meshes with the internal gear 6-4. In this way, the second motor 6-6 can control the outer shell 2 to rotate at a uniform speed during the pulping process. Several drive frames 6-10 are arranged around the inner wall of the outer shell 2, which can drive the material to achieve a pushing effect. A top cover 6-8 with a feed inlet 6-9 is also provided at the top.

[0043] For example, such as Figure 3 As shown, a sealing sliding layer 7 is provided around the outer surface of the base 3, and the sealing sliding layer 7 is connected to the outer shell 2 in a sliding assembly.

[0044] In some examples, the sealing between the housing 2 and the base 3 can be improved by adding a sealing slip layer 7, thus preventing leakage.

[0045] For example, such as Figure 3 As shown, the pusher plates 5-6 are fixedly connected at an inclined angle.

[0046] In some examples, tilting the angle can achieve a pushing effect and pressing downwards to prevent the pulp from overflowing upwards.

[0047] For example, such as Figure 3 As shown, the surface of the base 3 is a sloping structure that slopes to one side, and the discharge pipe at the bottom of the base 3 is located at the lowest position.

[0048] In some examples, the sloping structure facilitates the concentration of slurry in one location for centralized discharge.

[0049] For example, such as Figure 3As shown, the top cover 6-8 has a downward-sloping funnel-shaped cross-section.

[0050] In some examples, a downward-sloping funnel structure facilitates the inward sliding of raw materials during feeding.

[0051] For example, such as Figure 4 As shown, the cross-section of the drive frame 6-10 is triangular, and the highest point of the protrusion of the drive frame 6-10 is located at the gap between the outer shell 2 and the base 3.

[0052] In some examples, the triangular structure of the drive frame 6-10 can promote the flow of pulp and enhance the uniformity of pulp breaking.

[0053] In actual use: The raw materials such as pulp boards and waste paper to be crushed are put into the pulper through the feed port 6-9 of the top cover 6-8. The drive motor 4 is started, and the drive motor 4 drives the stirring shaft frame 5-3 to rotate. The stirring shaft frame 5-3 drives the driven shaft 5-4 to rotate synchronously through the transmission wheel 5-7 and the toothed belt. The spiral blades 5-5 lift the pulp upward, and the pusher plate 5-6 disperses the pulp downward to achieve pulp crushing. At the same time, the second motor 6-6 is started. The second motor 6-6 drives the drive gear 6-7, which drives the outer shell 2 to rotate on the track frame 6-1. The drive frame 6-10 on the inner wall of the outer shell 2 pushes the pulp to flow, making the pulp more uniformly mixed. After crushing, the pulp flows to the discharge pipe for discharge under the action of the inclined surface of the base 3.

[0054] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. An eccentric rotor pulper with good flow circulation, characterized in that, include: The base plate (1), the outer shell (2) and the base (3) are fixed on the base plate (1) and the outer shell (2) is rotatably connected to the base (3). The drive motor (4) and the main stirring assembly (5) are provided. The drive motor (4) is fixed on the bottom surface of the base plate (1), and the main stirring assembly (5) is provided on the base plate (1). An auxiliary rotation assembly (6) is disposed between the outer shell (2) and the base (3); The main stirring assembly (5) includes an inner seat (5-1), which is fixed to the surface of the base plate (1). A transmission cavity (5-2) is provided inside the inner seat (5-1), and a stirring shaft frame (5-3) is rotatably connected inside the transmission cavity (5-2). The lower end of the stirring shaft frame (5-3) is connected to the output end of the drive motor (4).

2. The eccentric rotor pulper with good circulation effect according to claim 1, characterized in that, A driven shaft (5-4) is rotatably connected in the inner seat (5-1). A spiral blade (5-5) is provided on the driven shaft (5-4). Several pusher plates (5-6) are provided at the upper end of the driven shaft (5-4). A transmission wheel (5-7) is provided at the lower end of the stirring shaft frame (5-3) and the lower end of the driven shaft (5-4). The transmission wheels (5-7) are connected by a toothed belt.

3. The eccentric rotor pulper with good circulation effect according to claim 1, characterized in that, The auxiliary rotation component (6) includes a track frame (6-1), which is arranged around the outer surface of the base (3). The bottom of the outer shell (2) is provided with a slide rail (6-2), and the outer shell (2) is slidably connected to the track frame (6-1) through the slide rail (6-2).

4. The eccentric rotor pulper with good circulation effect according to claim 3, characterized in that, The outer surface of the outer shell (2) is provided with an outer cover (6-3) at the lower end, and an internal gear (6-4) is provided on the inner surface of the outer cover (6-3). A base frame (6-5) is fixed on the surface of the base plate (1), and a second motor (6-6) is installed on the base frame (6-5).

5. The eccentric rotor pulper with good circulation effect according to claim 4, characterized in that, The output end of the second motor (6-6) is provided with a drive gear (6-7), which meshes with the internal gear (6-4). The top of the outer shell (2) is provided with a top cover (6-8), and the center of the top cover (6-8) is provided with a feed inlet (6-9). Several drive frames (6-10) are provided around the inner wall of the outer shell (2).

6. The eccentric rotor pulper with good circulation effect according to claim 1, characterized in that, A sealing sliding layer (7) is provided around the outer surface of the base (3), and the sealing sliding layer (7) is slidably connected to the outer shell (2).

7. An eccentric rotor pulper with good circulation effect according to claim 2, characterized in that, The pusher plates (5-6) are fixedly connected at an inclined angle.

8. The eccentric rotor pulper with good circulation effect according to claim 1, characterized in that, The surface of the base (3) is a sloping structure that is inclined to one side, and the discharge pipe at the bottom of the base (3) is located at the lowest position.

9. An eccentric rotor pulper with good circulation effect according to claim 5, characterized in that, The top cover (6-8) has a downward-sloping funnel-shaped cross-section.

10. An eccentric rotor pulper with good circulation effect according to claim 5, characterized in that, The cross-section of the drive frame (6-10) is triangular, and the highest point of the protrusion of the drive frame (6-10) is located at the gap between the outer shell (2) and the base (3).

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