Crushing and mixing device for papermaking raw materials
By adopting dry crushing and bidirectional stirring technology in the papermaking raw material crushing and mixing device, the problems of low crushing efficiency and uneven stirring are solved, and more efficient crushing and uniform mixing are achieved, and equipment stability and product quality are improved.
Patent Information
- Application Number
- CN202510093805.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2025-03-28
AI Technical Summary
The existing papermaking raw material crushing and mixing devices during the crushing process are inefficient due to raw material flowability and plant fiber toughness, and are prone to tool wear and equipment unstable due to rod-like impurities; one-way stirring during the mixing process leads to uneven stirring, affecting product quality.
A papermaking raw material crushing and mixing device including a crushing box and a two-way stirring device is designed. The crushing box adopts a dry crushing method, and multiple crushing knives and clockwork combinations are used to avoid the jamming of rod-like impurities; the bidirectional stirring device generates strong convection and complex vortex through a reverse-rotating agitator to ensure uniform mixing of raw materials.
It improves crushing efficiency and equipment stability, reduces tool wear, ensures uniformity of the mixing process and consistency of product quality, and supports efficient papermaking processes.
Smart Images
Figure CN119711230A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of pulping and papermaking, and in particular to a papermaking raw material crushing and mixing device. Background Art
[0002] The papermaking raw material crushing and mixing device can efficiently crush and evenly mix various papermaking raw materials (such as wood, waste paper, grass fiber, etc.) and their chemicals to ensure that the raw materials reach the particle size requirements suitable for pulping, optimize the fiber structure, and improve the strength and quality of paper. At the same time, it can greatly shorten the preparation time, improve production efficiency, and reduce manual intervention and costs. The device can also accurately control the parameters in the crushing and mixing process to ensure the consistency of each batch of raw materials, and adopts an environmentally friendly and energy-saving design to reduce energy consumption and waste emissions, support sustainable development of papermaking technology, adapt to the processing needs of various raw materials, improve resource utilization, and reduce dependence on primary resources.
[0003] When the current papermaking raw material crushing and mixing device crushes the raw material, the raw material will first enter the water, and then the crushing knife crushes the raw material in the water. However, the raw material itself is dissolved in water, so the raw material has fluidity, and the raw material has the toughness of plant fiber. Therefore, when the crushing knife rotates, it will drive the raw material slurry to flow, and it cannot achieve a sufficient crushing effect, thereby reducing the crushing efficiency.
[0004] When the crushing knife is crushing the raw materials, some rod-shaped impurities may be mixed in the raw materials. The rod-shaped impurities are slender and hard, and can easily get stuck between the crushing knife and the fixed parts, causing the crushing knife to be subjected to huge local pressure and impact force, resulting in deformation or breakage of the tool edge and continuous abnormal friction of the crushing knife. These factors not only directly damage the tool surface, but also increase the workload of the tool, causing it to operate under abnormal conditions, thereby accelerating the wear of the tool, causing the equipment to fail to operate normally, and may even cause the motor to overload, causing safety problems and further reducing the crushing efficiency.
[0005] At the same time, when mixing the raw materials, most of them are unidirectionally stirred with a single agitator. The unidirectional stirring causes the raw materials to flow in one direction, and thus they may not be effectively stirred near the container wall or in the bottom corners, resulting in a dead corner of stirring, affecting the uniformity of stirring. At the same time, the unidirectional stirring cannot provide sufficient shear force and turbulence, and thus the relative movement between the raw materials is less, and the agglomerated raw materials cannot be effectively separated, which further reduces the uniformity of stirring and limits the product quality to a certain extent. Summary of the invention
[0006] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a papermaking raw material crushing and mixing device to solve the problems raised in the above background technology.
[0007] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a papermaking raw material crushing and mixing device, comprising: a supporting table top, the inner surface of the supporting table top is fixedly connected with a mixing tank, the side of the mixing tank close to the top is fixedly connected with a supporting block, the inner surface of the supporting block is fixedly connected with a crushing box, the outer surface of the crushing box is fixedly connected with two fixed plates 1, the tops of the two fixed plates 1 are fixedly connected with a plurality of dampers, the plurality of dampers are evenly divided into two groups, the tops of the two groups of dampers are respectively fixedly connected with a motor 2 and a motor 1, the motor 1 and the motor 2 are respectively provided with a rotating shaft 3 and a rotating shaft 4 through the output shaft, the outer surface of the rotating shaft 3 is fixedly installed with a plurality of round blocks 1, and the outer surfaces of the plurality of round blocks 1 are fixedly connected with a plurality of crushing knives 1.
[0008] A plurality of circular plates 2 are fixedly mounted on the outer surface of the rotating shaft 4, a plurality of notches 1 are provided on the outer surfaces of both sides of the plurality of circular plates 2, a plurality of notches 2 are provided on the side of the plurality of circular plates 2 close to the plurality of notches 1, a plurality of rotating rods are movably embedded in the inner surfaces of the plurality of notches 2, a plurality of crushing knives 2 are fixedly connected to the outer surfaces of the plurality of rotating rods close to both ends, a plurality of rotating rods are fixedly connected to the side of the plurality of crushing knives 2 close to the plurality of rotating rods, a plurality of fixing columns are fixedly connected to the outer surfaces of the plurality of fixing springs, a connecting pipe communicating with the inner cavity of the crushing box is fixedly connected to the bottom of the crushing box, which improves the crushing effect to a certain extent, and prevents the problem of rod-shaped impurities being stuck between the crushing knives 2, the crushing knife 1 and the fixed components, which reduces the wear of the cutters to a certain extent, ensures the stable and safe operation of the equipment, and improves the crushing efficiency.
[0009] As a preferred embodiment, a plurality of support columns are fixedly connected to the top center of the mixing tank, a support plate is fixedly connected to the top of the support column, a motor is fixedly connected to the top of the support plate, the motor is provided with a rotating shaft 1 through an output shaft, a gear 1, a plurality of agitators 1 and agitator 2 are fixedly connected to the outer surface of the rotating shaft 1, a plurality of gears 2 are meshingly connected to the outer surface of the gear 1, a plurality of rotating shafts 2 are fixedly mounted on the inner surfaces of the plurality of gears 2, a plurality of agitators 3 are fixedly connected to the outer surfaces of the plurality of rotating shafts 2, a discharge pipe connected to the inner cavity of the mixing tank is fixedly connected to the bottom of the mixing tank, a discharge valve is provided on the outer surface of the discharge pipe, and a bidirectional stirring device is adopted to increase the relative movement speed between the raw materials, and the increase in the relative movement speed between the raw materials can generate greater shear force, which helps to break up the agglomerated raw materials, promote the dispersion of the raw materials, and ensure a more uniform mixing effect.
[0010] As a preferred embodiment, a water inlet pipe is fixedly connected to the top of the mixing tank, a fixing plate 2 is fixedly connected to the inner surface of the water inlet pipe, a plurality of filter holes are evenly arranged on the outer surface of the fixing plate 2, and the water inlet pipe is connected to the water pipe through a quick connector. The filter holes can filter impurities in the water, thereby improving product quality to a certain extent.
[0011] As a preferred embodiment, the bottom of the support block is fixedly connected with two angle plates and a support rod, the two angle plates are fixedly connected to the outer surface of the mixing tank, the two support rods are fixedly connected to the top of the support table top, the bottom of the support table top is fixedly connected with a plurality of rubber pads, the outer surface of the support table top is fixedly connected with two inclined plates, and the rubber pads can prevent the support table top from sliding on the ground and protect the ground.
[0012] As a preferred embodiment, the plurality of springs are movably embedded in the inner surfaces of the plurality of slots, and the plurality of fixing posts are fixedly connected to the inner surfaces of the plurality of slots. The fixing posts can fix the springs to provide a good working environment for the springs.
[0013] As a preferred embodiment, the connecting pipe is connected to the inner cavity of the mixing tank, the motor one and the motor two rotate in opposite directions, and the plurality of crushing knives one and two rotate relatively, and the crushing knives one and two can crush the raw materials.
[0014] As a preferred embodiment, the rotating shaft 1 and multiple rotating shafts 2 are movably embedded in the inner top of the mixing tank, and multiple agitators 2 are fitted with the inner wall of the mixing tank. Agitators 2 can stir the raw materials at the bottom of the mixing tank, further reducing the stirring dead angle.
[0015] Compared with the prior art, the advantages and positive effects of the present invention are: 1. The crushing process of the present invention is not carried out in water, but the raw materials are crushed in a specially designed crushing box. Therefore, when the crushing blade 2 and the crushing blade 1 rotate at high speed, it will not affect the flow of the subsequent slurry. This dry crushing method avoids the liquid turbulence and resistance caused by the rotation of the cutter, ensuring that the material has been fully crushed before entering the mixing stage, and the crushing blade 2 briefly rotates with the crushing blade 1, and the additional shear force and driving force generated synchronously quickly push the rod-shaped impurities stuck between the two sets of cutters out of the stuck point to prevent them from being firmly stuck, and thus the problem of rod-shaped impurities being stuck between the crushing blade 2, the crushing blade 1 and the fixed parts will not occur, which reduces the wear of the cutter to a certain extent, ensures the stable and safe operation of the equipment, and improves the crushing efficiency.
[0016] 2. When mixing the raw materials, the present invention adopts a bidirectional stirring device, and then generates strong convection and complex vortex through two counter-rotating stirrers 1 and 2, which not only covers more areas and reduces stirring dead angles, ensuring that all raw materials can be effectively stirred, but also increases the relative movement speed between the raw materials, generates greater shear force, helps to break up agglomerated particles, and promotes the dispersion of fine particles, thereby achieving a more uniform mixing effect; at the same time, bidirectional stirring can balance axial and radial flows, so that the material is more evenly distributed in the entire container, avoiding local over-concentration or over-thinness, improving mixing efficiency and quality consistency, reducing component separation, ensuring that materials of different densities or particle sizes are fully mixed, and ultimately improving the preparation quality and production efficiency of papermaking raw materials, supporting the efficient operation of modern papermaking processes. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 A schematic diagram of the main structure of a papermaking raw material crushing and mixing device provided by the present invention; Figure 2 A schematic cross-sectional structure diagram of a papermaking raw material crushing and mixing device provided by the present invention; Figure 3 A partial structural schematic diagram of a papermaking raw material crushing and mixing device provided by the present invention; Figure 4 A schematic diagram of the explosion structure of a papermaking raw material crushing and mixing device provided by the present invention; Figure 5 A papermaking raw material crushing and mixing device provided by the present invention Figure 1 A schematic diagram of the enlarged structure at A in the middle; Figure 6 A papermaking raw material crushing and mixing device provided by the present invention Figure 2 Schematic diagram of the enlarged structure at point B in the middle.
[0018] Legend: 1. Support table; 2. Mixing tank; 3. Support column; 4. Support plate; 5. Motor; 6. Rotating shaft 1; 7. Agitator 1; 8. Agitator 2; 9. Gear 1; 10. Gear 2; 11. Rotating shaft 2; 12. Agitator 3; 13. Discharge pipe; 14. Support block; 15. Crushing box; 16. Fixed plate 1; 17. Damper; 18. Motor 1; 19. Rotating shaft 3; 20. Round block 1; 21. Crushing knife 1; 22. Round plate 2; 23. Notch 1; 24. Spring; 25. Fixed column; 26. Rotating rod; 27. Crushing knife 2; 28. Connecting pipe; 29. Water inlet pipe; 30. Fixed plate 2; 31. Angular plate; 32. Support rod; 33. Discharge valve; 34. Rubber pad; 35. Rotating shaft 4; 36. Notch 2; 37. Filter hole; 38. Motor 2; 39. Inclined plate. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0020] See also Figure 1-6 The present invention provides a technical solution: a papermaking raw material crushing and mixing device, comprising: a supporting table 1, the inner surface of the supporting table 1 is fixedly connected with a mixing tank 2, a side of the mixing tank 2 close to the top is fixedly connected with a supporting block 14, the inner surface of the supporting block 14 is fixedly connected with a crushing box 15, the outer surface of the crushing box 15 is fixedly connected with two fixed plates 16, the tops of the two fixed plates 16 are fixedly connected with a plurality of dampers 17, the plurality of dampers 17 are evenly divided into two groups, the tops of the two groups of dampers 17 are respectively fixedly connected with a motor 2 38 and a motor 1 18, the motor 1 18 and the motor 2 38 are respectively provided with a rotating shaft 3 19 and a rotating shaft 4 35 through the output shaft, the outer surface of the rotating shaft 3 19 is fixedly installed with a plurality of round blocks 20, and the outer surfaces of the plurality of round blocks 20 are fixedly connected with a plurality of crushing knives 21.
[0021] A plurality of circular plates 22 are fixedly mounted on the outer surface of the rotating shaft 4 35, a plurality of notches 1 23 are provided on the outer surfaces of both sides of the plurality of circular plates 22, a plurality of notches 36 are provided on one side of the plurality of circular plates 22 close to the plurality of notches 1 23, a rotating rod 26 is movably embedded in the inner surfaces of the plurality of notches 2 36, a plurality of rotating rods 26 are fixedly connected with crushing knives 2 27 on the outer surfaces close to both ends, a plurality of rotating rods 26 are fixedly connected with springs 24 on one side close to the plurality of crushing knives 2 27, two fixed columns 25 are fixedly connected to the outer surfaces of the plurality of springs 24, a connecting pipe 28 communicating with the inner cavity of the crushing box 15 is fixedly connected to the bottom thereof, which improves the crushing effect to a certain extent, and prevents the problem of rod-shaped impurities being stuck between the crushing knives 2 27, the crushing knives 1 21 and the fixed components, which reduces the wear of the cutters to a certain extent, ensures the stable and safe operation of the equipment, and improves the crushing efficiency.
[0022] like Figure 1-6As shown, a plurality of support columns 3 are fixedly connected to the top center of the mixing tank 2, a support plate 4 is fixedly connected to the top of the plurality of support columns 3, a motor 5 is fixedly connected to the top of the support plate 4, a rotating shaft 6 is arranged on the motor 5 through an output shaft, a gear 9, a plurality of agitators 1 7 and agitator 2 8 are fixedly connected to the outer surface of the rotating shaft 6, a plurality of gears 2 10 are meshingly connected to the outer surface of the gear 9, a rotating shaft 2 11 is fixedly mounted on the inner surfaces of the plurality of gears 2 10, a plurality of agitators 3 12 are fixedly connected to the outer surfaces of the plurality of rotating shafts 2 11, a discharge pipe 13 communicating with the inner cavity thereof is fixedly connected to the bottom of the mixing tank 2, a discharge valve 33 is arranged on the outer surface of the discharge pipe 13, a bidirectional stirring device is adopted, the relative movement speed between the raw materials is increased, and the increase in the relative movement speed between the raw materials can generate a greater shear force, which is helpful to break up the agglomerated raw materials, promote the dispersion of the raw materials, and ensure a more uniform mixing effect.
[0023] like Figure 1-6 As shown, a water inlet pipe 29 is fixedly connected to the top of the mixing tank 2, a fixing plate 30 is fixedly connected to the inner surface of the water inlet pipe 29, a plurality of filter holes 37 are evenly arranged on the outer surface of the fixing plate 30, and the water inlet pipe 29 is connected to the water inlet pipe through a quick connector. The filter holes 37 can filter impurities in the water, thereby improving product quality to a certain extent.
[0024] like Figure 1-6 As shown, two angle plates 31 and a support rod 32 are fixedly connected to the bottom of the support block 14, the two angle plates 31 are fixedly connected to the outer surface of the mixing tank 2, the two support rods 32 are fixedly connected to the top of the support table top 1, a plurality of rubber pads 34 are fixedly connected to the bottom of the support table top 1, and two inclined plates 39 are fixedly connected to the outer surface of the support table top 1. The rubber pads 34 can prevent the support table top 1 from sliding on the ground and protect the ground.
[0025] like Figure 1-6 As shown, multiple springs 24 are movably embedded in the inner surfaces of multiple slots 23, and multiple fixing columns 25 are fixedly connected to the inner surfaces of multiple slots 23. The fixing columns 25 can fix the springs 24 and provide a good working environment for the springs 24.
[0026] like Figure 1-6 As shown, the connecting pipe 28 is connected to the inner cavity of the mixing tank 2, the motor 18 and the motor 2 38 rotate in opposite directions, and the multiple crushing knives 1 21 and the crushing knives 2 27 rotate relatively, and the crushing knives 1 21 and the crushing knives 2 27 can crush the raw materials.
[0027] like Figure 1-6As shown, the rotating shaft 1 6 and multiple rotating shafts 2 11 are movably embedded in the inner top of the mixing tank 2, so that the rotating shaft 1 6 and multiple rotating shafts 2 11 can rotate, and multiple agitators 2 8 are in contact with the inner wall of the mixing tank 2. The agitator 2 8 can stir the raw materials at the bottom of the mixing tank 2, further reducing the stirring dead angle.
[0028] Working principle: This equipment is a papermaking raw material crushing and mixing device. The cooperation of the fixed plate 16 and the damper 17 can reduce the vibration of the motor 18 and the motor 2 38 and improve the service life of the motor 18 and the motor 2 38. The cooperation of the support column 3 and the support plate 4 can support the motor 5 and provide a good working environment for the motor 5. The angle plate 31 can improve the stability of the support block 14. The cooperation of the support rod 32 and the support table top 1 can further improve the stability of the support block 14. The inclined plate 39 can improve the stability of the support table top 1. The rubber pad 34 can prevent the support table top 1 from sliding on the ground and protect the ground. The agitator 2 8 can stir the raw materials at the bottom of the mixing tank 2 to further reduce the stirring dead angle.
[0029] When in use, the water inlet pipe 29 is connected to the water pipe through a quick connector, so that water enters the interior of the mixing tank 2 through the water inlet pipe 29, and the filter holes 37 on the fixed plate 2 30 can filter impurities in the water, thereby improving the product quality to a certain extent. Then the raw materials are poured into the crushing box 15 on the support block 14, and then the motor 1 18 and the motor 2 38 are started. The motor 1 18 drives the rotating shaft 3 19 to rotate through the output shaft, and the rotating shaft 3 19 drives the crushing knife 1 21 to rotate through the round block 1 20. The motor 2 38 drives the rotating shaft 4 35 to rotate through the output shaft, and the rotating shaft 4 35 drives the crushing knife 2 27 to rotate through the round plate 2 22. Because the rotation directions of the motor 1 18 and the motor 2 38 are opposite, the rotation directions of the crushing knife 2 27 and the crushing knife 1 21 are opposite, so that the crushing knife 2 27 and the crushing knife 1 21 can crush the raw materials.
[0030] When rod-shaped impurities get stuck between the crushing blade 1 21 and the crushing blade 2 27 , the crushing blade 1 21 will continue to rotate, and the crushing blade 2 27 and the crushing blade 1 21 will temporarily rotate together, and the crushing blade 27 will drive the rotating rod 26 in the slot 2 36 to rotate, and the rotating rod 26 will drive the spring 24 on the fixed column 25 to rotate, so that the spring 24 is deformed inside the slot 1 23 to obtain elastic potential energy. When the rod-shaped impurities leave the middle part of the round block 1 20 and the circular plate 2 22 due to the rotation of the crushing blade 1 21 , the spring 24 releases the elastic potential energy, so that the rotating rod 26 drives the crushing blade 2 27 to rotate to the initial position, and continues to cooperate with the crushing blade 1 21 to crush the raw materials. The crushed raw materials enter the interior of the mixing tank 2 through the connecting pipe 28, and the rod-shaped impurities are removed in the subsequent process.
[0031] In the papermaking raw material crushing and mixing device, the crushing process is not carried out in water, but the raw materials are crushed in a specially designed crushing box 15. Therefore, when the crushing knife 2 27 and the crushing knife 1 21 rotate at high speed, it will not affect the flow of subsequent slurry. This dry crushing method avoids the liquid turbulence and resistance caused by the rotation of the cutter, ensuring that the material has been fully crushed before entering the mixing stage. This design makes raw material processing more efficient and stable, reduces maintenance requirements, extends the service life of the equipment, and provides better quality raw materials for the subsequent pulping process, further improving the quality and consistency of the final product.
[0032] And by utilizing the cooperation between the mainspring 24 and the second crushing knife 27, the second crushing knife 27 can briefly follow the rotation of the first crushing knife 21, and the rod-shaped impurities stuck between the two sets of cutters can be quickly pushed out of the stuck point through the additional shear force and driving force generated synchronously to prevent them from being firmly stuck, thereby avoiding the problem of equipment shutdown caused by the sticking of the rod-shaped raw materials. When the rod-shaped impurities will not be stuck between the two sets of cutters, the cutters will not be subjected to huge local pressure and impact force, resulting in deformation or breakage of the cutter edges. Therefore, this design will not damage the geometric shape, cutting performance, transmission system and other key components of the cutter, significantly increasing the service life of the equipment, reducing the equipment maintenance cost and downtime, ensuring the stable and safe operation of the equipment, and improving the crushing efficiency to a certain extent.
[0033] Then start the motor 5, which drives the shaft 1 6 to rotate through the output shaft, and the shaft 1 6 drives the agitator 2 8, the agitator 1 7 and the gear 1 9 to rotate. The gear 1 9 drives the shaft 2 11 to rotate in the opposite direction through the gear 2 10, and the shaft 2 11 drives the agitator 3 12 to rotate in the opposite direction. The rotation directions of the agitator 3 12 and the agitator 1 7 are opposite, thereby realizing two-way stirring. The two-way stirring increases the relative movement speed between the materials, which can better break up the raw materials and realize uniform stirring.
[0034] When mixing the raw materials, a bidirectional stirring device is used, and then strong convection and complex vortex are generated through two counter-rotating stirrers 7 and stirrers 8, which not only cover more areas and reduce stirring dead corners, ensuring that all raw materials can be effectively stirred, but also increase the relative movement speed between the raw materials, generate greater shear force, help break up agglomerated particles, and promote the dispersion of fine particles, thereby achieving a more uniform mixing effect; at the same time, bidirectional stirring can balance axial and radial flows, so that the material is more evenly distributed in the entire container, avoiding local over-concentration or over-thinness, improving mixing efficiency and quality consistency, reducing component separation, ensuring that materials of different densities or particle sizes are fully mixed, and ultimately improving the preparation quality and production efficiency of papermaking raw materials, supporting the efficient operation of modern papermaking processes.
[0035] After the stirring is completed, the discharge valve 33 is opened, and the product is led out from the interior of the mixing tank 2 through the discharge pipe 13 for easy use.
[0036] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.
Claims
1. A papermaking raw material crushing and mixing device, comprising: A support table (1), characterized in that: a mixing tank (2) is fixedly connected to the inner surface of the support table (1), a support block (14) is fixedly connected to a side of the mixing tank (2) close to the top, a crushing box (15) is fixedly connected to the inner surface of the support block (14), and two fixing plates (16) are fixedly connected to the outer surface of the crushing box (15), and the tops of the two fixing plates (16) are fixedly connected to a plurality of dampers (17), and the plurality of dampers (17) are evenly divided into two groups, and the tops of the two groups of dampers (17) are respectively fixedly connected to a motor (38) and a motor (18), and the motor (18) and the motor (38) are respectively provided with a rotating shaft (19) and a rotating shaft (35) through output shafts, and the outer surface of the rotating shaft (19) is fixedly mounted with a plurality of round blocks (20), and the outer surfaces of the plurality of round blocks (20) are fixedly connected to a plurality of crushing knives (21); A plurality of circular plates (22) are fixedly mounted on the outer surface of the rotating shaft (4); a plurality of notches (23) are provided on the outer surfaces of both sides of the plurality of circular plates (22); a plurality of notches (36) are provided on one side of the plurality of circular plates (22) close to the plurality of notches (23); a rotating rod (26) is movably embedded in the inner surface of the plurality of notches (36); a plurality of crushing knives (27) are fixedly connected to the outer surfaces of the plurality of rotating rods (26) close to both ends; a spring (24) is fixedly connected to the outer surfaces of the plurality of crushing knives (27); two fixing columns (25) are fixedly connected to the outer surfaces of the plurality of springs (24); and a connecting pipe (28) communicating with the inner cavity of the crushing box (15) is fixedly connected to the bottom of the crushing box (15).
2. A papermaking raw material crushing and mixing device according to claim 1, characterized in that: A plurality of support columns (3) are fixedly connected at the center of the top of the mixing tank (2), a support plate (4) is fixedly connected to the top of the plurality of support columns (3), a motor (5) is fixedly connected to the top of the support plate (4), the motor (5) is provided with a rotating shaft (6) via an output shaft, a gear (9), a plurality of stirrers (7) and a stirrer (8) are fixedly connected to the outer surface of the rotating shaft (6), a plurality of gears (10) are meshingly connected to the outer surface of the gear (9), a plurality of rotating shafts (11) are fixedly mounted on the inner surfaces of the plurality of gears (10), a plurality of stirrers (12) are fixedly connected to the outer surfaces of the plurality of rotating shafts (11), and a discharge pipe (13) communicating with the inner cavity of the mixing tank (2) is fixedly connected to the bottom of the mixing tank (2), and a discharge valve (33) is provided on the outer surface of the discharge pipe (13).
3. A papermaking raw material crushing and mixing device according to claim 1, characterized in that: A water inlet pipe (29) is fixedly connected to the top of the mixing tank (2), a second fixing plate (30) is fixedly connected to the inner surface of the water inlet pipe (29), a plurality of filter holes (37) are evenly formed on the outer surface of the second fixing plate (30), and the water inlet pipe (29) is connected to a water pipe via a quick connector.
4. A papermaking raw material pulverizing and mixing device according to claim 1, characterized in that: The bottom of the support block (14) is fixedly connected to two angled plates (31) and a support rod (32); the two angled plates (31) are fixedly connected to the outer surface of the mixing tank (2); the two support rods (32) are fixedly connected to the top of the support table top (1); the bottom of the support table top (1) is fixedly connected to a plurality of rubber pads (34); and the outer surface of the support table top (1) is fixedly connected to two inclined plates (39).
5. The papermaking raw material crushing and mixing device according to claim 1, characterized in that: The plurality of springs (24) are movably embedded in the inner surfaces of the plurality of slots one (23), and the plurality of fixing columns (25) are fixedly connected to the inner surfaces of the plurality of slots one (23).
6. The papermaking raw material crushing and mixing device according to claim 1, characterized in that: The connecting pipe (28) is in communication with the inner cavity of the mixing tank (2), the motor one (18) and the motor two (38) rotate in opposite directions, and the plurality of crushing knives one (21) and crushing knives two (27) rotate relative to each other.
7. The papermaking raw material pulverizing and mixing device according to claim 2, characterized in that: The rotating shaft 1 (6) and the plurality of rotating shafts 2 (11) are movably embedded in the inner top of the mixing tank (2), and the plurality of stirrers 2 (8) are in contact with the inner wall of the mixing tank (2).