Modularized compression roller and rolling granulator
Through the combination of modular press roller design and PLC controller, the problem of difficult replacement of press rollers and complex equipment maintenance in existing roller press granulators is solved, efficient granulation and automated control are achieved, and the service life and granulation efficiency of the equipment are improved.
Patent Information
- Application Number
- CN202421785472.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-25
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2034-07-25
AI Technical Summary
The existing roller presses have problems such as difficult to replace, long shutdown replacement cycle, and high overall replacement cost. The equipment maintenance is complex and the degree of automation is low, making it difficult to achieve efficient granulation.
The modular press roller design is adopted. Each roller skin is detachably installed on the roller blank by bolt connection, and a second key groove is provided on the contact surface to cooperate with the keys, so that the roller skin is bonded to the roller blank. At the same time, a PLC controller is introduced into the roller press, combining pressure detection and current detection devices to realize automated control and active protection mechanisms.
It improves the operating stability and service life of the modular press roller, simplifies the equipment maintenance and maintenance process, reduces downtime and maintenance costs, and improves granulation efficiency and product quality.
Smart Images
Figure CN222805132U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of material mixing and granulation, and relates to a modularized pressing roller and a roller pressing granulator. Background Art
[0002] Roller pressing pelletizer is a kind of efficient pelletizing equipment, which uses two rollers with pits on the surface to squeeze the material, and makes the material into target shaped pellets in the cavity formed by the two rollers. Therefore, during the operation of the roller pressing pelletizer, the pits on the surface of the roller are prone to local wear and deformation. Therefore, the roller is a consumable part and needs to be replaced in time. However, the rollers used in the existing roller pressing pelletizer are mainly one-piece rollers, that is, the roller blank and the roller skin are cast in one piece. Due to their large size and high quality, they have the defects of great difficulty in replacement, long downtime replacement cycle, and high overall replacement cost. At the same time, there are also shortcomings such as low roller surface utilization, low overall ball formation rate, low production capacity, and large floor space, which limit the widespread use of roller pressing pelletizers. In addition, the existing roller press adopts an assembled roller, including a roller shaft, a fixed ring and a movable ring are respectively arranged at both ends of the roller shaft, and a plurality of roller surface partition plates are installed between the fixed ring and the movable ring. The roller surface partition plates are fixed and stabilized by a fastening mechanism and a stabilizing mechanism. Specifically, a push rod and a stabilizing rod are inserted into the holes in the roller surface partition plates to achieve fixation and stability between the roller surface partition plates and the roller shaft. However, the assembled roller still has the following defects: (1) Since the connection between the push rod, the stabilizing rod and the roller surface partition plates is a point-to-point connection, it is difficult to disperse the transmitted torque, so that the push rod and the stabilizing rod are subjected to very large working pressure and are easily damaged, which is not conducive to the stable operation of the roller press. , in particular, the top rod and the stabilizing rod are prone to deformation, which makes it difficult to disassemble the roller surface splitter plate. When it needs to be replaced, it is difficult to separate it from the roller shaft; (2) Different roller surface splitters are spliced together by plugging the stabilizing plate into the slot. When the stabilizing plate or the slot of a roller surface splitter plate is deformed, it is difficult to quickly separate it from the other roller surface splitters, resulting in difficulty in disassembly and a long disassembly time; (3) The roller surface splitter plate and the roller shaft are not in contact, making it difficult to effectively transmit the working torque of the roller shaft to the surface of the roller surface splitter plate; (4) The accessories used are complex and numerous, which not only makes it difficult to simplify the structure of the pressure roller, but also is not conducive to installation and disassembly, has poor practicality, and is easy to increase equipment costs and repair and maintenance costs. In addition, most of the existing roller pelletizers have fixed spacing, or use hydraulic push rods to control the roller spacing, and have no emergency exit mechanism. Therefore, when impacted by large pieces or foreign objects, the roller blanks and the transmission system will be directly impacted and damaged, causing equipment damage; at the same time, the roller pelletizer has very high requirements for the matching degree of the feed amount. However, most of the existing roller pelletizers rely on manual adjustment of the feed amount, resulting in defects such as the feeding speed is not linked to the roller blank running speed, and the feeding speed has lags. It is easy to form deformed spheres due to insufficient feeding, or it is easy to cause the balls to be not compact enough and the roller blanks to stick.Therefore, obtaining a modular pressing roller with a simple structure, easy installation and disassembly, and high roller skin utilization rate, as well as obtaining a roller pressing granulator with controllable roller spacing, high roller skin utilization rate, simple equipment maintenance, active protection mechanism, high degree of automation, ability to adjust parameters in time, high balling rate, high production capacity, small footprint, round balls, and small burrs and rough edges, is of great significance for promoting the widespread use of lithium mica and the rapid development of the lithium battery industry. Utility Model Content
[0003] The technical problem to be solved by the utility model is to provide a modular pressing roller with a simple structure, easy installation and disassembly, and high roller skin utilization rate in view of the deficiencies in the prior art; and also to provide a roller pressing pelletizer with controllable roller spacing, high roller skin utilization rate, simple equipment maintenance, an active protection mechanism, a high degree of automation, the ability to adjust parameters in time, a high balling rate, high production capacity, a small footprint, rounded balls, and small burrs and rough edges.
[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions.
[0005] A modular pressure roller comprises a roller blank and a plurality of roller skins, which are formed by splicing the plurality of roller skins around the roller blank, and each roller skin is detachably mounted on the roller blank by bolt connection; at least one set of second key grooves is provided on the contact surface between each roller skin and the roller blank, and the roller skin is keyed to the roller blank by the cooperation of the second key grooves and the keys.
[0006] As a further improvement of the above technical solution: the second key grooves are in two to four groups; the second key grooves are in the shape of long strips and are distributed in the middle of the contact surface; the second key grooves are parallel to the axial direction of the roller blank.
[0007] As a further improvement of the above technical solution: the second keyway has a rectangular shape at one end extending into the roller blank, and a T-shape at one end extending into the roller skin.
[0008] As a further improvement of the above technical solution: the roll blank is prism-shaped or cylindrical; when the roll blank is prism-shaped, the roll blank is one of a right triangular prism, a right quadrangular prism, a right pentagonal prism, and a right hexagonal prism.
[0009] As a further improvement of the above technical solution: at least two first bolt holes are respectively provided at both ends of each side of the roller blank, and at least two second bolt holes are respectively provided at both ends of each roller skin. Through the cooperation of the first bolt holes, the second bolt holes and the fastening bolts, each roller skin can be detachably installed on the side of the roller blank.
[0010] As a further improvement of the above technical solution: a rotating shaft is also provided inside the roller blank, and the roller blank and the rotating shaft are coaxially arranged; at least one set of first key grooves are provided on the contact surface between the roller blank and the rotating shaft, and the rotating shaft is keyed to the inside of the roller blank through the cooperation of the first key grooves and the keys.
[0011] As a further improvement of the above technical solution: a plurality of ball pits are provided on the surface of each roller skin, the depth of the ball pits is 2mm-5mm, and the interval between two ball pits is 0.3mm-0.6mm; the roller skin is block-shaped.
[0012] As a general technical concept, the utility model also provides a roller pressing pelletizer, comprising two transmission pressing rollers, wherein the transmission pressing rollers are modular pressing rollers as described above.
[0013] As a further improvement of the above technical solution: it includes a support frame, on which a frame, a motor, a hydraulic oil pump, a hydraulic cylinder and a double-axis reducer are installed; the two transmission rollers are installed on the frame, and when granulating, the two transmission rollers move in opposite directions at the same speed, and when cleaning or maintenance, the two transmission rollers move in opposite directions at the same speed; the output end of the motor is connected to a pulley; the pulley is connected to the input end of the double-axis reducer through a belt; one output end of the double-axis reducer is connected to the rotating shaft of the transmission roller through a coupling, and the other output end of the double-axis reducer is connected to the rotating shaft of the other transmission roller through a universal joint; the transmission roller connected to the universal joint is also connected to a hydraulic push rod, and the hydraulic push rod is installed on the frame. ; The inlet of the hydraulic push rod is connected to the outlet of the hydraulic oil pump, and the outlet of the hydraulic push rod is connected to the inlet of the hydraulic cylinder; a pressure detection device and a pressure relief device are also provided on the return pipe between the hydraulic push rod and the hydraulic cylinder; a dust cover is provided at the end of the transmission roller away from the double-axis reducer, and a speed detection device is provided in the dust cover; a lower hopper is also provided above the two transmission rollers, and the lower hopper is installed on the frame; the lower hopper is in the shape of an inverted quadrangular pyramid; a current detection device is also connected to the motor; the ball pits on the surfaces of the two transmission rollers are used together to form a spherical cavity for preparing particles; the spacing between the two transmission rollers is 1mm~2mm; the diameter of the spherical cavity is 5mm~12mm.
[0014] As a further improvement of the above technical solution: it also includes a PLC controller, and the PLC controller is electrically connected to the motor, the current detection device, the speed detection device, the pressure detection device and the pressure relief device respectively.
[0015] Compared with the prior art, the advantages of the utility model are:
[0016] (1) The modular pressure roller of the utility model comprises a roller blank and a plurality of roller skins, which are formed by wrapping a plurality of roller skins around the roller blank and splicing them together. Each roller skin is detachably mounted on the roller blank by bolt connection. At least one set of second key grooves is provided on the contact surface between each roller skin and the roller blank. The roller skin is keyed to the roller blank by the cooperation of the second key groove and the key, thereby wrapping a plurality of roller skins around the roller blank and splicing them together to form a modular pressure roller. When in use, the roller skin can be stably fixed on the surface of the roller blank by the cooperation of the bolts, key grooves and keys, which is beneficial to improving the running stability of the modular pressure roller. Moreover, the cooperation of the key grooves and keys allows the roller blank and the roller skin to form a surface-to-surface contact, thereby transmitting torque and reducing the working pressure of bolt tightening. Furthermore, under the action of the bolts, the roller skin is tightly attached to the roller blank, which can improve the running stability of the modular pressure roller while also transmitting working torque. , which can effectively reduce the damage of each component, and is conducive to improving the service life of the roller. More importantly, with the cooperation of bolts, keyways and keys, the positioning accuracy of the contact surface between the roller blank and the roller skin can be improved, the transmission load can be increased, and it can be more suitable for high-load operation conditions. Moreover, by realizing the precise positioning of the contact surface between the roller blank and the roller skin, the hole accuracy is increased, and the insufficient ball strength caused by insufficient hole accuracy is avoided, which is conducive to obtaining spherical particles that meet the requirements; when disassembling, the severely worn roller blank can be replaced only by loosening the bolts, which has the following advantages: the severely worn roller skin can be replaced in a targeted manner, the utilization rate of the roller skin can be improved, the replacement of the integrated roller skin can be avoided, and the equipment investment cost can be reduced; the modular roller skin is easy to disassemble, which reduces the difficulty of maintenance, shortens the maintenance time, and saves the maintenance cost; the maintenance is convenient, the downtime is reduced, the labor loss is reduced, and the amount of spare equipment is reduced. The modular roller of the utility model has the advantages of simple structure, easy installation and disassembly, high roller skin utilization rate, etc. It can be widely used in building high-performance roller pressing pelletizers, with high use value and good application prospects.
[0017] (2) In the roller pelletizer of the utility model, the pressure detection device and the current detection device are simultaneously connected to the PLC controller. When the system fails or foreign matter falls into the roller blank, the current and pressure surge, and the pressure relief device (i.e., the pressure relief valve) can urgently relieve the pressure, and the roller blank can be withdrawn to avoid damage to the equipment caused by impact load.
[0018] (3) In the roller-pressed pelletizer of the utility model, a coupling and a universal joint are arranged between the double-shaft reducer and the driving roller. Under the joint action of the coupling and the universal joint, the two driving rollers can be synchronously controlled, thereby reducing the problems of insufficient hole accuracy and excessive transmission loss caused by relying on large gear transmission. In particular, the universal joint can adapt to the environment where the hydraulic system drives the roller to move.
[0019] (4) In the roller compacting pelletizing machine of the utility model, a speed detection device is installed on one side of the driving roller, and is connected to a PLC controller together with a belt scale (the belt scale is located between the silo and the lower hopper) for controlling the discharge amount of the silo. The feed amount is adjusted in time with the rotation speed of the rollers, which can effectively avoid the sticking of the roller blanks due to insufficient feed amount, improve the degree of automation of the entire production system, reduce errors in manual control, and reduce labor input. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to make the purpose, technical solution and advantages of the embodiments of the present utility model clearer, the technical solution in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model.
[0021] Figure 1 It is a three-dimensional diagram of the roller blank in Example 1 of the utility model.
[0022] Figure 2 It is a top view of the contact surface between the roller skin and the roller blank in Example 1 of the utility model.
[0023] Figure 3 It is a side view of the roller skin in Example 1 of the utility model.
[0024] Figure 4 It is a top view of the working surface of the roller skin in Example 1 of the utility model.
[0025] Figure 5 It is a three-dimensional diagram of the roller press in Example 2 of the utility model.
[0026] Figure 6 This is a top view of the roller press in Example 2 of the utility model.
[0027] Legend:
[0028] 1. Lower hopper; 2. Frame; 3. Transmission roller; 4. Motor; 5. Hydraulic oil pump; 6. Hydraulic cylinder; 7. Hydraulic push rod; 8. Dust cover; 9. Double-axis reducer; 10. Universal joint; 11. Pressure relief device; 12. First keyway; 13. Roller blank; 14. First bolt hole; 15. Rotating shaft; 16. Second bolt hole; 17. Second keyway; 18. Ball pit; 19. Roller skin. DETAILED DESCRIPTION
[0029] The present invention is further described below in conjunction with the accompanying drawings and specific preferred embodiments, but the protection scope of the present invention is not limited thereby.
[0030] The materials and instruments used in the following examples are all commercially available.
[0031] Embodiment 1:
[0032] like Figures 1 to 4 As shown, the modular pressure roller of this embodiment includes a roller blank 13 and six roller skins 19, which are formed by six roller skins 19 wrapped around the roller blank 13 and spliced together. Each roller skin 19 is detachably installed on the roller blank 13 by bolt connection. Two groups of second key grooves 17 are provided on the contact surface between each roller skin 19 and the roller blank 13, that is, two groups of second key grooves 17 are provided on the contact surface of each roller skin 19, and two groups of second key grooves 17 are also provided on each contact surface of the roller blank 13. The roller skin 19 is bonded to the roller blank 13 by the use of the second key grooves 17 and the keys, thereby the six roller skins 19 are wrapped around the roller blank 13 and spliced into a modular pressure roller.
[0033] In this embodiment, the second keyway 17 is in the shape of a strip and is distributed in the middle of the contact surface between each roller skin 19 and the roller blank 13, and the second keyway 17 is parallel to the axial direction of the roller blank 13. The length of the second keyway 17 is adaptively adjusted according to the length of the roller blank 13.
[0034] In this embodiment, the end of the second keyway 17 extending into the roller blank 13 is rectangular, and the end extending into the roller skin 19 is T-shaped.
[0035] In this embodiment, the roller blank 13 is in the shape of a prism, and the roller blank 13 is in the shape of a right hexagonal prism, that is, there are six rectangles on the side of the roller blank 13 .
[0036] In this embodiment, two first bolt holes 14 are respectively provided at both ends of each side surface of the roller blank 13, that is, four first bolt holes 14 are provided on each side surface of the roller blank 13; two second bolt holes 16 are respectively provided at both ends of each roller skin 19, that is, four second bolt holes 16 are provided on each roller skin 19. Through the coordinated use of the first bolt holes 14, the second bolt holes 16 and the fastening bolts, each roller skin 19 can be detachably installed on the side surface of the roller blank 13 to form a cylindrical modular pressing roller.
[0037] In this embodiment, a rotating shaft 15 is also provided inside the roller blank 13. The roller blank 13 and the rotating shaft 15 are coaxially arranged. Two groups of first key grooves 12 are provided on the contact surface between the roller blank 13 and the rotating shaft 15. The two groups of first key grooves 12 are axially symmetrical, and the rotating shaft 15 is bonded to the inside of the roller blank 13 by using the first key grooves 12 in combination with the keys.
[0038] In this embodiment, a plurality of ball pits 18 are provided on the surface of each roller skin 19. The depth of the ball pits 18 is 4 mm, and the interval between two ball pits 18 is 0.5 mm.
[0039] In this embodiment, the roller skin 19 is block-shaped.
[0040] In this embodiment, when in use, with the cooperation of the bolts, keyways and keys, the roller skin can be stably fixed on the surface of the roller blank, which is beneficial to improving the running stability of the modular pressure roller, and with the cooperation of the keyways and keys, surface-to-surface contact is formed between the roller blank and the roller skin, thereby transmitting torque and reducing the working pressure of bolt tightening. Furthermore, under the action of the bolts, the roller skin is tightly attached to the roller blank, which can improve the running stability of the modular pressure roller while also transmitting working torque, thereby effectively reducing damage to various components and helping to increase the service life of the pressure roller. More importantly, with the cooperation of the bolts, keyways and keys, the stability between the roller blank and the roller skin can be improved. The contact surface positioning accuracy increases the transmission load, making it more suitable for high-load operation conditions. Moreover, by realizing the precise positioning of the contact surface between the roller blank and the roller skin, the hole accuracy is increased to avoid insufficient ball strength caused by insufficient hole accuracy, which is conducive to obtaining spherical particles that meet the requirements. During disassembly, the severely worn roller blank can be replaced only by loosening the bolts, which has the following advantages: the severely worn roller skin can be replaced in a targeted manner, the roller skin utilization rate can be improved, the integrated roller skin replacement can be avoided, and the equipment investment cost can be reduced. The modular roller skin is easy to disassemble, which reduces the difficulty of maintenance, shortens the maintenance time, and saves maintenance costs. It is convenient to maintain, reduces downtime, reduces labor loss, and reduces the amount of spare equipment. The modular pressure roller of the utility model has the advantages of simple structure, easy installation and disassembly, and high roller skin utilization rate. It can be widely used in high-performance roller pressing pelletizers, with high use value and good application prospects.
[0041] Embodiment 2:
[0042] like Figures 5 and 6 As shown, the roller pressing granulator of this embodiment includes two transmission pressing rollers 3, and the transmission pressing rollers 3 are modular pressing rollers as shown in Example 1.
[0043] In this embodiment, the roller pressing pelletizer also includes a support frame, on which a frame 2, a motor 4, a hydraulic oil pump 5, a hydraulic cylinder 6 and a double-shaft reducer 9 are installed. Two transmission rollers 3 are installed on the frame 2. During granulation, the two transmission rollers 3 move in opposite directions at the same speed. During cleaning or maintenance, the two transmission rollers 3 move in opposite directions at the same speed. The output end of the motor 4 is connected to a pulley, and the pulley is connected to the input end of the double-shaft reducer 9 through a belt. One output end of the double-shaft reducer 9 is connected to the rotating shaft 15 of the transmission roller 3 through a coupling, and the other output end of the double-shaft reducer 9 is connected to the rotating shaft 15 of the other transmission roller 3 through a universal joint 10. The transmission roller 3 connected to the universal joint 10 is also connected to a hydraulic push rod 7, and the hydraulic push rod 7 is installed On the frame 2, the inlet of the hydraulic push rod 7 is connected to the outlet of the hydraulic oil pump 5, and the outlet of the hydraulic push rod 7 is connected to the inlet of the hydraulic cylinder 6. A pressure detection device and a pressure relief device 11 are also provided on the return pipe between the hydraulic push rod 7 and the hydraulic cylinder 6. A dust cover 8 is provided at the end of the transmission roller 3 away from the double-axis reducer 9, and a speed detection device is provided in the dust cover 8. A lower hopper 1 is also provided above the two transmission rollers 3. The lower hopper 1 is installed on the frame 2, and the lower hopper 1 is an inverted quadrangular cone; a current detection device is also connected to the motor 4; the ball pits 18 on the surfaces of the two transmission rollers 3 are used together to form a spherical cavity for preparing particles, wherein the interval between the two transmission rollers 3 is 2 mm, and the diameter of the spherical cavity is 10 mm.
[0044] In this embodiment, the roller compacting pelletizer further comprises a PLC controller, which is electrically connected to the motor 4, the current detection device, the rotation speed detection device, the pressure detection device and the pressure relief device 11 respectively.
[0045] In this embodiment, the pressure detection device and the current detection device are connected to the PLC controller at the same time. When the system fails or foreign matter falls into the roller blank, the current and pressure surge, and the pressure relief device (i.e., the pressure relief valve) can perform emergency pressure relief, and the roller blank can be withdrawn to avoid damage to the equipment caused by impact loads, which is conducive to better protection of the equipment and extending the service life of the equipment.
[0046] In this embodiment, a coupling and a universal joint are provided between the dual-axis reducer and the transmission roller. With the joint action of the coupling and the universal joint, the two transmission rollers can be synchronously controlled, reducing the problems of insufficient hole alignment accuracy and excessive transmission loss caused by relying on large gear transmission. In particular, the universal joint can adapt to the environment where the hydraulic system drives the roller blank to move. In addition, by connecting the transmission rollers through the coupling and the universal joint, the spacing between the rollers can be controlled with the joint action of the coupling and the universal joint, which can not only better improve the utilization rate of the roller skin, reduce ball debris, increase production capacity, and improve product quality, but also prevent impact and facilitate automatic pressure relief. At the same time, the use of a dual-axis reducer and the action of the coupling and the universal joint can effectively reduce the problem of misalignment of the holes caused by the speed difference between the transmission rollers, and effectively avoid the problem of misalignment of the holes caused by the transmission energy loss and error between the active gear and the passive gear.
[0047] In this embodiment, a speed detection device is installed on one side of the transmission pressure roller, and it is connected to the PLC controller together with the belt scale. The feed amount is adjusted in time with the speed of the rollers, which can effectively avoid the sticking of the roller blanks due to insufficient feed amount, improve the degree of automation of the entire production system, reduce manual control errors, and reduce labor input.
[0048] In this embodiment, a dust cover is provided outside the speed detection device to effectively prevent environmental dust from affecting the detection accuracy.
[0049] In this embodiment, when the roller press granulator is running, the motor 4 is powered, and the torque output by the motor 4 is transmitted to the double-axis reducer 9 through a belt. The reducer reduces the rotation speed, increases the output torque, reduces the load inertia, reduces the friction, improves the transmission efficiency, and extends the service life of the roller press. The double-axis reducer 9 is respectively connected to the two transmission rollers 3 through a coupling and a universal joint 10 to transmit power to the two transmission rollers 3. The two transmission rollers 3 are driven by the equal output of the double-axis reducer 9, and the two transmission rollers 3 rotate at the same time. When the material enters the roller press granulator from the lower hopper 1, the hydraulic oil pump 5 works, and the hydraulic push rod 7 presses the transmission roller 3. The material (such as lithium mica mixture) is squeezed into a ball under the action of gravity, and is squeezed through the symmetrical hemispherical roller skin to form a lithium mica pellet, which then falls off from the bottom of the transmission roller 3.
[0050] In the utility model, the roller pressing granulator based on the modular pressure roller can effectively separate the powder and the pellet, realize the local processing, modular assembly and rapid replacement of the roller skin, and can obtain the pellet with smooth and full surface while improving the utilization rate of the roller skin of the material, and can realize the replacement of the roller skin faster, improve the maintenance efficiency, save the maintenance time, save the maintenance cost, improve the production efficiency and the utilization rate of the equipment, and the modular roller skin has the advantages of small volume, small weight, low replacement difficulty, low maintenance and replacement risk, and reduced maintenance and replacement equipment investment, which is conducive to improving the utilization rate of resources. At the same time, it also has the advantages of simple equipment, convenient operation, short processing cycle, low processing cost, high roller skin utilization rate, low maintenance cost and maintenance risk, and high equipment utilization rate. In particular, when the system is used to prepare lithium mica pellets, the roller skin is easy to replace, the maintenance difficulty and risk are small, the maintenance efficiency is high, the maintenance labor and equipment investment are saved, and the equipment utilization rate is high, which meets the requirements of lithium mica smelting for granulation cost control and efficiency improvement. The utility model roller pressing granulator has the advantages of controllable roller spacing, high roller skin utilization, simple equipment maintenance, active protection mechanism, high degree of automation, ability to adjust parameters in time, high ball formation rate, high production capacity, small footprint, round balls, small burrs and rough edges, etc. It is a new roller pressing granulator with excellent performance, which is of great significance for promoting the widespread use of lithium mica and the rapid development of the lithium battery industry.
[0051] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model has been disclosed as above in the preferred embodiment, it is not used to limit the utility model. Any technician familiar with the field can make many possible changes and modifications to the technical solution of the utility model by using the methods and technical contents disclosed above without departing from the spirit and technical solution of the utility model, or modify it into an equivalent embodiment of equivalent changes. Therefore, any simple modification, equivalent replacement, equivalent change and modification made to the above embodiments based on the technical essence of the utility model without departing from the content of the technical solution of the utility model, still fall within the scope of protection of the technical solution of the utility model.
Claims
1. A modular press roller, comprising a roller blank (13) and a plurality of roller skins (19), wherein the plurality of roller skins (19) are spliced around the roller blank (13), and characterized in that: Each roller skin (19) is detachably mounted on the roller blank (13) by bolt connection; at least one set of second key grooves (17) is provided on the contact surface between each roller skin (19) and the roller blank (13); and the roller skin (19) is keyed to the roller blank (13) by the cooperation of the second key grooves (17) and the keys.
2. The modular pressure roller according to claim 1, characterized in that: The second key grooves (17) are in two to four groups; the second key grooves (17) are in the shape of long strips and are distributed in the middle of the contact surface; the second key grooves (17) are parallel to the axial direction of the roller blank (13).
3. The modular pressure roller according to claim 2, characterized in that: The end of the second keyway (17) extending to the roller blank (13) is rectangular, and the end extending to the roller skin (19) is T-shaped.
4. The modular press roller according to any one of claims 1 to 3, characterized in that: The roller blank (13) is prism-shaped or cylindrical; when the roller blank (13) is prism-shaped, the roller blank (13) is one of a right triangular prism, a right quadrangular prism, a right pentagonal prism, and a right hexagonal prism.
5. The modular pressure roller according to claim 4, characterized in that: At least two first bolt holes (14) are respectively provided at both ends of each side surface of the roller blank (13), and at least two second bolt holes (16) are respectively provided at both ends of each roller skin (19). Through the cooperation of the first bolt holes (14), the second bolt holes (16) and the fastening bolts, each roller skin (19) can be detachably mounted on the side surface of the roller blank (13).
6. The modular pressure roller according to claim 5, characterized in that: A rotating shaft (15) is also provided inside the roller blank (13), and the roller blank (13) and the rotating shaft (15) are coaxially arranged; at least one set of first key grooves (12) are provided on the contact surface between the roller blank (13) and the rotating shaft (15), and the rotating shaft (15) is keyed to the inside of the roller blank (13) by the cooperation of the first key grooves (12) and the key.
7. The modular press roller according to any one of claims 1 to 3, characterized in that: The surface of each roller skin (19) is provided with a plurality of ball pits (18), the depth of the ball pits (18) is 2 mm to 5 mm, and the interval between two ball pits (18) is 0.3 mm to 0.6 mm; the roller skin (19) is block-shaped.
8. A roller granulator, comprising two driving rollers (3), characterized in that: The transmission pressure roller (3) is a modular pressure roller as claimed in any one of claims 1 to 7.
9. The roller granulator according to claim 8, characterized in that: The invention comprises a support frame, on which a frame (2), a motor (4), a hydraulic oil pump (5), a hydraulic oil cylinder (6) and a double-shaft reducer (9) are installed; two transmission rollers (3) are installed on the frame (2); during granulation, the two transmission rollers (3) move in opposite directions at the same speed; during cleaning or maintenance, the two transmission rollers (3) move in opposite directions at the same speed; the output end of the motor (4) is connected with a pulley; the pulley is connected to the input end of the double-shaft reducer (9) through a belt; one output end of the double-shaft reducer (9) is connected to the rotating shaft (15) of the transmission roller (3) through a coupling, and the other output end of the double-shaft reducer (9) is connected to the rotating shaft (15) of the other transmission roller (3) through a universal joint (10); the transmission roller (3) connected to the universal joint (10) is also connected with a hydraulic push rod (7), and the hydraulic push rod (7) is installed on the frame (2); The inlet of the hydraulic push rod (7) is connected to the outlet of the hydraulic oil pump (5), and the outlet of the hydraulic push rod (7) is connected to the inlet of the hydraulic cylinder (6); a pressure detection device and a pressure relief device (11) are also provided on the return pipe between the hydraulic push rod (7) and the hydraulic cylinder (6); a dust cover (8) is provided at one end of the transmission roller (3) away from the double-axis reducer (9), and a speed detection device is provided inside the dust cover (8); a lower hopper (1) is also provided above the two transmission rollers (3), and the lower hopper (1) is installed on the frame (2); the lower hopper (1) is in the shape of an inverted quadrangular pyramid; the motor (4) is also connected to a current detection device; the ball pits (18) on the surfaces of the two transmission rollers (3) are used in combination to form a spherical cavity for preparing particles; the spacing between the two transmission rollers (3) is 1 mm to 2 mm; and the diameter of the spherical cavity is 5 mm to 12 mm.
10. The roller granulator according to claim 9, characterized in that: It also includes a PLC controller, which is electrically connected to the motor (4), the current detection device, the rotation speed detection device, the pressure detection device and the pressure relief device (11) respectively.