Pulping separation equipment

Abstract

The utility model relates to the technical field of material crushing treatment, in particular to pulping separation equipment which comprises a shell, the shell comprises a cylinder and a conical cylinder connected to the lower portion of the cylinder, a feeding opening is formed in the upper portion of the cylinder, a discharging opening is formed in the lower end of the conical cylinder, and a top cover is installed at the top end of the cylinder. And a filter plate is fixedly arranged in the conical cylinder and divides an inner cavity of the shell into an upper crushing space and a lower discharging space. A crushing assembly is attached to the upper surface of the filter plate and connected with the lower end of a power shaft, and the upper end of the power shaft upwards penetrates out of the top cover and is connected with a rotary power assembly. A mounting hole is formed in the middle of the filter plate, a magnetic suspension bearing is embedded in the mounting hole and comprises a bearing outer ring and a bearing inner ring, the bearing outer ring is fixed to the inner wall of the mounting hole, an elastic circular plate is fixed to the upper end of the bearing inner ring, the circular plate is fixed to the lower end of the crushing assembly, and the periphery of the circular plate is in lap joint with the upper end face of the bearing outer ring.

Description

Technical Field

[0001] This utility model relates to the field of material crushing and processing technology, and in particular to a pulping and separation device. Background Technology

[0002] Existing pulping and separation equipment typically has a filter plate inside the equipment shell, with a crushing component arranged above the filter plate. The crushing component is directly fixed to the lower end of the power shaft and attached to the upper surface of the filter plate. After the material is crushed and pulped by the crushing component, the slurry falls through the filter plate and is discharged into the discharge space.

[0003] However, the aforementioned filter plate lacks bearings or other limiting support structures in its middle section. The crushing component is suspended solely by the drive shaft, lacking reliable axial positioning with the filter plate. When the drive shaft drives the crushing component to rotate at high speed, the component is prone to radial oscillation, resulting in poor equipment operational stability. Specifically, the oscillation of the crushing component causes impacts and friction with the filter plate, increasing equipment operating noise and accelerating wear on both the crushing component and the filter plate, thus shortening component lifespan. Utility Model Content

[0004] This invention provides a pulping and separation device that can solve at least one of the above-mentioned technical problems.

[0005] To solve the above-mentioned technical problems, one or more embodiments of this utility model provide a pulping and separating device, including a shell, which includes a cylinder and a conical cylinder connected to the lower part of the cylinder. The upper part of the cylinder is provided with a feed port, and the lower end of the conical cylinder forms a discharge port. A top cover is installed at the top of the cylinder. A filter plate is fixedly installed in the conical cylinder, and the filter plate divides the inner cavity of the shell into an upper crushing space and a lower discharge space. A crushing component is attached to the upper surface of the filter plate, and the crushing component is connected to the lower end of a power shaft. The upper end of the power shaft extends upward through the top cover and is connected to a rotating power component. A mounting hole is provided in the middle of the filter plate, and a magnetic levitation bearing is embedded in the mounting hole. The magnetic levitation bearing includes an outer ring and an inner ring. The outer ring is fixed to the inner wall of the mounting hole, and an elastic circular plate is fixed to the upper end of the inner ring. The circular plate is fixed to the lower end of the crushing component, and the outer periphery of the circular plate overlaps the upper end face of the outer ring.

[0006] The beneficial effects of one or more of the above technical solutions are as follows:

[0007] This solution embeds a magnetic levitation bearing in the mounting hole in the middle of the filter plate, fixing the outer ring of the bearing to the inner wall of the mounting hole. The upper end of the inner ring of the bearing is fixed to the lower end of the crushing component via an elastic circular plate, while the outer circumference of the circular plate overlaps the upper end face of the outer ring of the bearing. This adds a reliable radial limiting support structure to the crushing component, compensating for the shortcomings of existing equipment that relies solely on the power shaft for suspension without additional limiting. This effectively suppresses the radial sway of the crushing component during high-speed rotation, ensuring that the crushing component always adheres to the upper surface of the filter plate for stable operation, avoiding overall equipment shaking caused by swaying, and improving the stability of equipment operation. Furthermore, it avoids the problem of impact and friction between the swaying crushing component and the filter plate in existing equipment, reducing noise during equipment operation; at the same time, it reduces wear between the crushing components (such as the turntable and blades) and the filter plate, and also reduces additional losses to the power shaft caused by swaying.

[0008] In this design, the elastic circular plate can accommodate the slight displacement of the crushing components during operation, without affecting the limiting effect of the magnetic levitation bearing, and can also buffer the vibration generated during the crushing process.

[0009] In this design, a flexible circular plate is fixed to the upper end of the inner ring of the bearing, and its outer circumference overlaps the upper end face of the outer ring of the bearing. This effectively shields the gap between the inner and outer rings of the magnetic levitation bearing, significantly reducing the probability that materials (including crushed slurry and incompletely crushed material particles) in the crushing space will enter the space between the inner and outer rings of the bearing through the filter plate mounting holes. This avoids the problems of bearing jamming and accelerated wear caused by materials entering the bearing gap, extends the bearing service life, and reduces the probability of equipment downtime due to bearing failure. Attached Figure Description

[0010] Figure 1 This is an isometric view of the overall structure in an embodiment of this utility model;

[0011] Figure 2 This is a schematic diagram of the internal structure of the pulping and separating equipment in an embodiment of this utility model;

[0012] Figure 3 This is a schematic diagram of the filter plate and support plate in an embodiment of this utility model;

[0013] Figure 4 This is a schematic diagram of the filter plate and crushing component in an embodiment of this utility model;

[0014] Figure 5 This is an axonometric view of the overall structure in an embodiment of this utility model;

[0015] Figure 6 for Figure 5 Enlarged structural diagram of part A.

[0016] Reference numerals: 1. Slag discharge port; 2. Feed port; 3. Top cover; 4. Drive chain; 5. Motor; 6. Cylinder; 7. Conical cylinder; 8. Support leg; 9. Annular seat; 901. Vertical ring; 902. Horizontal ring; 10. Second baffle; 11. First baffle; 12. Lower shaft; 13. Crushing assembly; 1301. Turntable; 1302. Blade; 14. Filter plate; 15. Upper shaft; 16. Coupling; 17. Intermediate shaft; 18. Inner ring; 19. Support plate; 20. Magnetic levitation bearing; 2001. Bearing outer ring; 2002. Bearing inner ring; 2003. Screw; 2004. Circular plate; 21. Discharge port. Detailed Implementation

[0017] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific embodiments and in conjunction with the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0018] It should be noted that this application does not involve any specific structural design or principle improvement of the magnetic levitation bearing; it only requires the installation of corresponding sensors, coils, etc. on the outer ring of the bearing.

[0019] See Figures 1-6 A typical embodiment of this utility model provides a pulping and separating device, including a shell comprising a cylinder 6 and a conical cylinder 7 connected to the lower part of the cylinder 6. The cylinder 6 and the conical cylinder 7 are integrally formed to ensure the overall sealing of the shell and prevent material leakage from the connection. A feed port 2 is provided through the upper side of the cylinder 6, and the feed port 2 is inclined at an angle of 30°-45° to facilitate the smooth entry of materials into the shell. The lower end of the conical cylinder 7 is constricted to form a discharge port 21, and a control valve is provided at the discharge port 21 to adjust the slurry discharge speed according to the actual discharge requirements. A top cover 3 is detachably installed on the top of the cylinder 6 by bolts, and a sealing gasket is provided between the top cover 3 and the top of the cylinder 6 to prevent slurry splashing out during the crushing process.

[0020] A filter plate 14 is fixedly installed inside the cone 7. The filter plate 14 is horizontally positioned, dividing the inner cavity of the outer shell into an upper crushing space and a lower discharge space. The filter plate 14 is made of stainless steel and has multiple filter holes evenly distributed on its surface, which can effectively separate the slurry from the incompletely crushed material particles. A crushing component 13 is attached to the upper surface of the filter plate 14. The crushing component 13 is fixedly connected to the lower end of the power shaft. The upper end of the power shaft extends upward through the top cover 3 and is connected to the rotary power component. The rotary power component drives the power shaft to rotate, thereby causing the crushing component 13 to rotate at high speed on the upper surface of the filter plate 14, crushing and slurrying the material entering the crushing space.

[0021] In this embodiment, a circular mounting hole is provided in the middle of the filter plate 14. The diameter of the mounting hole is adapted to the outer diameter of the outer ring 2001 of the magnetic levitation bearing 20. The magnetic levitation bearing 20 is embedded in the mounting hole. The magnetic levitation bearing 20 includes an outer ring 2001 and an inner ring 2002. The outer ring 2001 is fixed with the inner wall of the mounting hole by an interference fit to ensure that the outer ring 2001 is firmly installed and not easy to loosen. The inner ring 2002 can rotate freely relative to the outer ring 2001. An elastic circular plate 2004 is fixed to the upper end of the inner ring 2002. The circular plate 2004 is made of rubber and has good elasticity and sealing performance. The upper surface of the circular plate 2004 is fixed to the lower end of the crushing component 13. The outer periphery of the circular plate 2004 overlaps the upper end face of the outer ring 2001 of the bearing with an overlap width of 5-8mm. This can both block the gap of the magnetic levitation bearing 20 and not affect the normal rotation of the inner ring 2002.

[0022] Specifically, the upper end of the power shaft is fixedly connected to the driven sprocket. A drive sprocket is mounted on the upper surface of the top cover 3 via a bracket. The drive sprocket and driven sprocket are of matching models and connected via a transmission chain 4. A motor 5 is also mounted on the bracket of the top cover 3. The motor 5 is a variable frequency motor, whose speed can be adjusted according to the material crushing requirements. The output shaft of the motor 5 is coaxially fixed to the drive sprocket via a key connection to drive its rotation. This rotation, in turn, drives the driven sprocket and the power shaft to rotate via the transmission chain 4. The drive sprocket, driven sprocket, transmission chain 4, and motor 5 together form a rotary power assembly.

[0023] Specifically, multiple support legs 8 are evenly distributed along the circumference of the outer wall of the cone 7. There are 3-4 support legs 8. The upper end of the support legs 8 is fixed to the outer wall of the cone 7 by welding or bolts. The lower end of the support legs 8 is provided with anti-slip pads. The anti-slip pads are made of rubber, which can raise the entire pulping and separation equipment so that the discharge port 21 is higher than the ground, making it easier to collect slurry, and can also enhance the stability of the equipment placement.

[0024] Specifically, multiple first baffles 11 are evenly distributed circumferentially on the inner wall of the cylinder 6, with 4-8 baffles 11 in number. The first baffles 11 are vertically arranged, with their upper ends close to the lower surface of the top cover 3 and their lower ends extending to the upper surface close to the filter plate 14. The first baffles 11 are fixed to the inner wall of the cylinder 6 by welding. Multiple second baffles 10 are evenly distributed circumferentially on the inner wall of the cone 7, with 4-8 second baffles 10 in number. The second baffles 10 are inclined, with the inclination direction consistent with the inclination direction of the inner wall of the cone 7. The second baffles 10 are fixed to the inner wall of the cone 7 by welding. Both the first baffles 11 and the second baffles 10 are arranged in the crushing space, which can prevent the material in the crushing space from rotating synchronously with the crushing component 13, enhance the impact force between the material and the crushing component 13, and improve the crushing efficiency.

[0025] In this embodiment, an annular seat 9 is fixed to the inner cavity of the cone 7. The annular seat 9 is made of stainless steel. The outer ring of the annular seat 9 is fixed to the inner wall of the cone 7 by welding, and the weld is sealed to prevent slurry from leaking from the connection. The outer periphery of the filter plate 14 is fixed to the upper surface of the annular seat 9 by bolts. A sealing gasket is provided between the filter plate 14 and the annular seat 9 to prevent material in the crushing space from entering the discharge space through the gap between the filter plate 14 and the annular seat 9, thus affecting the separation effect.

[0026] In this embodiment, an inner ring 18 is provided below the filter plate 14. The inner ring 18 is a circular ring structure made of stainless steel. The inner ring 18 is coaxially arranged with the power shaft to ensure uniform force distribution. Multiple support plates 19 are fixed between the inner ring 18 and the annular seat 9. The support plates 19 are made of stainless steel, and there are 4-8 support plates 19, which are evenly distributed along the circumference of the inner ring 18. The upper end face of the support plate 19 is attached to and abuts against the lower surface of the filter plate 14 to support the filter plate 14, enhance the load-bearing capacity of the filter plate 14, and prevent the filter plate 14 from deforming or being damaged under the pressure of the crushing component 13 and the impact of the material.

[0027] In this embodiment, multiple support plates 19 are evenly distributed along the circumference of the inner ring 18, and the included angle between two adjacent support plates 19 is equal, ensuring uniform support force at all parts of the filter plate 14. The inner wall of the inner ring 18 is attached to the outer surface of the bearing outer ring 2001 and fixed by an interference fit, further fixing the installation position of the magnetic levitation bearing 20, enhancing the stability of the magnetic levitation bearing 20, and preventing the magnetic levitation bearing 20 from shifting during equipment operation.

[0028] In this embodiment, the annular seat 9 includes a horizontal ring 902 and a vertical ring 901. Both the horizontal ring 902 and the vertical ring 901 are integrally formed structures and are made of stainless steel. The horizontal ring 902 is horizontally positioned, and its outer circumference is attached to the inner wall of the cone cylinder 7 and fixed by welding. The upper surface of the horizontal ring 902 is used to overlap the filter plate 14. The vertical ring 901 is vertically positioned. The upper end of the vertical ring 901 is fixed to the inner circumference of the horizontal ring 902 by welding, and the lower end of the vertical ring 901 is fixed to the inner wall of the cone cylinder 7 by welding. The vertical ring 901 enhances the overall structural strength of the annular seat 9 and also limits the inner circumference of the filter plate 14, preventing radial displacement of the filter plate 14.

[0029] In this embodiment, the crushing assembly 13 includes a turntable 1301 and a plurality of blades 1302 disposed on the turntable 1301. The turntable 1301 is made of stainless steel, and its lower surface is in contact with the upper surface of the filter plate 14. The middle part of the turntable 1301 is fixedly connected to the lower end of the power shaft. The number of blades 1302 is 4-8, which are evenly distributed along the circumference of the turntable 1301. The cutting edges of the blades 1302 face the direction of rotation, and the blades 1302 are detachably connected to the turntable 1301 by bolts, which facilitates the replacement and maintenance of the blades 1302.

[0030] In this embodiment, the power shaft includes a lower shaft 12, an intermediate shaft 17, and an upper shaft 15, which are coaxially fixed from bottom to top. The intermediate shaft 17 is a hollow shaft. The hollow structure can reduce the overall weight of the power shaft, reduce the load on the motor 5, and facilitate wiring. The lower end of the lower shaft 12 is fixedly connected to the turntable 1301 of the crushing assembly 13 by bolts to ensure a firm connection. The lower end of the upper shaft 15 extends into the crushing space, and the upper end of the upper shaft 15 extends out of the top cover 3 and is fixedly connected to the driven sprocket of the rotating power assembly to realize the transmission of power.

[0031] In this embodiment, the circular plate 2004 is an elastic plate made of rubber, which has good elasticity and sealing properties and can adapt to the working environment in the crushing space. The upper end of the bearing inner ring 2002 has an integrally formed sealing part. The sealing part is circular and coaxially arranged with the bearing inner ring 2002. The upper surface of the sealing part is in contact with the lower surface of the circular plate 2004. The sealing part, the circular plate 2004 and the upper end of the lower shaft 12 are fixedly connected by multiple screws 2003. The screws 2003 are evenly distributed around the circumference, with a quantity of 3-4, to ensure a firm connection. At the same time, the screws 2003 are made of stainless steel to prevent rust.

[0032] In this embodiment, the intermediate shaft 17 and the upper shaft 15 are fixedly connected by a coupling 16 located in the crushing space. The coupling 16 is an elastic coupling, which can compensate for the coaxiality error between the intermediate shaft 17 and the upper shaft 15, reduce vibration during power transmission, protect the power shaft and motor 5, and extend the service life of the equipment. The two ends of the coupling 16 are respectively fixed to the upper end of the intermediate shaft 17 and the lower end of the upper shaft 15 by key connections, ensuring reliable connection and facilitating disassembly and maintenance.

[0033] In this embodiment, a slag discharge port 1 is provided through the upper side of the cone 7. The lower end of the slag discharge port 1 is at the same height as the upper end face of the filter plate 14, ensuring that material particles that are not completely crushed and cannot pass through the filter holes on the upper surface of the filter plate 14 can be smoothly discharged from the slag discharge port 1, avoiding the accumulation of material particles on the filter plate 14 and affecting the crushing and separation efficiency. A detachable slag discharge pipe is provided on the outside of the slag discharge port 1, and a valve is provided on the slag discharge pipe to control the timing of slag discharge according to the material accumulation on the filter plate 14.

[0034] Working principle: First, motor 5 is started, driving the drive sprocket to rotate. The drive sprocket drives the driven sprocket to rotate through the transmission chain 4, which in turn drives the power shaft (lower shaft 12, intermediate shaft 17, upper shaft 15) to rotate synchronously. The power shaft drives the turntable 1301 and blades 1302 of the crushing assembly 13 to rotate at high speed on the upper surface of the filter plate 14. Then, the material to be crushed is fed into the crushing space of the outer shell through the feed port 2. Under the action of gravity, the material falls onto the upper surface of the filter plate 14, and the high-speed rotating blades 1302 cut and crush the material into slurry. During the crushing process, the first baffle 11 and the second baffle 10 prevent the material from rotating synchronously with the turntable 1301, enhance the impact force between the material and the blades 1302, and improve the crushing efficiency. Under the action of gravity, the crushed slurry passes through the filter holes on the filter plate 14 and enters the discharge space below. Finally, the slurry is discharged from the discharge port 21 at the lower end of the cone 7, completing the pulping and separation. Material particles that are not completely crushed and cannot pass through the filter holes accumulate on the upper surface of the filter plate 14. When the accumulation reaches a certain amount, the valve of the slag discharge port 1 is opened, and the material particles are discharged from the slag discharge port 1.

[0035] During equipment operation, the inner ring 2002 of the magnetic levitation bearing 20 rotates synchronously with the power shaft and the crushing component 13, while the outer ring 2001 is fixed in the mounting hole of the filter plate 14, providing reliable radial limiting support for the crushing component 13. This effectively suppresses the radial sway of the crushing component 13, ensuring that the crushing component 13 always adheres to the upper surface of the filter plate 14 and operates stably. The elastic circular plate 2004 can accommodate slight displacement of the crushing component 13 during operation, buffering the vibration generated during crushing. At the same time, it effectively shields the gap between the inner ring 2002 and the outer ring 2001 of the bearing, preventing material particles from entering the bearing gap, avoiding bearing jamming and wear, and extending the bearing's service life. The inner ring 18, support plate 19, and annular seat 9 below the filter plate 14 jointly support the filter plate 14, enhancing its load-bearing capacity and preventing deformation and damage.

[0036] The above specific embodiments should not be construed as limiting the scope of protection of this utility model. For those skilled in the art, any alternative improvements or modifications made to the embodiments of this utility model shall fall within the scope of protection of this utility model.

[0037] Any aspects of this utility model not described in detail are known to those skilled in the art.

Claims

1. A pulping and separating device, characterized in that, The device includes an outer shell, comprising a cylinder and a conical cylinder connected to the lower part of the cylinder. The upper part of the cylinder has a feed port, and the lower end of the conical cylinder forms a discharge port. A top cover is installed at the top of the cylinder. A filter plate is fixedly installed in the conical cylinder, which divides the inner cavity of the outer shell into an upper crushing space and a lower discharge space. A crushing component is attached to the upper surface of the filter plate. The crushing component is connected to the lower end of a power shaft, and the upper end of the power shaft extends upward through the top cover and is connected to a rotating power component. The filter plate has a mounting hole in the middle, and a magnetic levitation bearing is embedded in the mounting hole. The magnetic levitation bearing includes an outer ring and an inner ring. The outer ring is fixed to the inner wall of the mounting hole. An elastic circular plate is fixed to the upper end of the inner ring. The circular plate is fixed to the lower end of the crushing component. The outer periphery of the circular plate overlaps the upper end face of the outer ring.

2. The pulping and separating equipment according to claim 1, characterized in that, The inner cavity of the cone is fixed with an annular seat, the outer ring of the annular seat is fixed to the inner wall of the cone, and the outer periphery of the filter plate is fixedly overlapped with the annular seat.

3. The pulping and separating equipment according to claim 2, characterized in that, The filter plate is provided with an inner ring below it, which is coaxially arranged with the power shaft. Multiple support plates are fixed between the inner ring and the annular seat, and the upper end of the support plates is used to attach and support the filter plate.

4. The pulping and separating equipment according to claim 3, characterized in that, Multiple support plates are evenly distributed along the circumference of the inner ring, and the inner wall of the inner ring is used to fit and fix with the outer circumference of the bearing outer ring.

5. The pulping and separating equipment according to claim 2, characterized in that, The annular seat includes a horizontal ring and a vertical ring. The outer circumference of the horizontal ring is attached to and fixed to the inner wall of the cone. The upper end of the vertical ring is fixed to the inner circumference of the horizontal ring, and the lower end of the vertical ring is fixed to the inner wall of the cone.

6. The pulping and separating equipment according to claim 1, characterized in that, The crushing assembly includes a turntable and multiple blades mounted on the turntable.

7. The pulping and separating equipment according to claim 1, characterized in that, The power shaft includes a lower shaft, a middle shaft, and an upper shaft that are coaxially fixed from bottom to top. The middle shaft is a hollow shaft. The lower end of the lower shaft is used to fix it to the crushing component. The lower end of the upper shaft passes through the crushing space, and the upper end of the upper shaft passes through the top cover and is connected to the rotating power component.

8. The pulping and separating equipment according to claim 7, characterized in that, The upper end of the inner ring of the bearing has a sealing part, and the sealing part, the circular plate and the upper end of the lower shaft are connected by screws.

9. The pulping and separating equipment according to claim 7, characterized in that, The intermediate shaft and the upper shaft are fixed together by a coupling located in the crushing space.

10. The pulping and separating equipment according to claim 1, characterized in that, The upper part of the cone is provided with a slag discharge port, and the lower end of the slag discharge port is at the same height as the upper end face of the filter plate.

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