CN108993651B - Vertical rotary cone ball mill - Google Patents
Vertical rotary cone ball mill Download PDFInfo
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- CN108993651B CN108993651B CN201810624700.6A CN201810624700A CN108993651B CN 108993651 B CN108993651 B CN 108993651B CN 201810624700 A CN201810624700 A CN 201810624700A CN 108993651 B CN108993651 B CN 108993651B
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- fixed cone
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C2/00—Crushing or disintegrating by gyratory or cone crushers
- B02C2/02—Crushing or disintegrating by gyratory or cone crushers eccentrically moved
- B02C2/04—Crushing or disintegrating by gyratory or cone crushers eccentrically moved with vertical axis
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/10—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls with one or a few disintegrating members arranged in the container
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- Food Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention discloses a vertical rotary cone ball mill which comprises a mill body, a driving device, a slewing bearing, a movable cone device, a fixed cone device, a buffering device and a plurality of grinding balls, wherein the slewing bearing, the movable cone device, the fixed cone device, the buffering device and the plurality of grinding balls are all arranged on the mill body; the driving device can drive the movable cone device to rotate around the axis of the fixed cone device through the slewing bearing, the fixed cone device is arranged on the machine body through the buffer device, and the grinding balls are placed between the movable cone device and the fixed cone device to be used for grinding materials together. Through the cooperation of slewing bearing, ball and buffer, can make the material obtain abundant grinding, increase the effective duration of operation of vertical rotary cone ball mill to can reduce the maintenance number of times, and then can promote the work efficiency and the grinding effect of vertical rotary cone ball mill by a wide margin.
Description
Technical Field
The invention relates to the field of mining machinery, in particular to a vertical rotary cone ball mill.
Background
At present, the equipment for stirring and grinding mine materials mainly comprises a stirrer and a ball mill, the existing stirring ball mill is mostly a vertical spiral stirring ball mill and is provided with a vertical grinding container, a vertically extending stirring shaft is arranged at the center of the grinding container, the materials circulate between the stirring ball mill and a stirring kettle, the existing dry stirring ball mill only fixes the upper end of a main shaft, and thus the main shaft is easy to shake during high-speed operation, the service life of a main machine is shortened, grinding balls circulate and come out according to a fixed roller path, and the production efficiency is low. The existing ball mill is a key device for crushing materials after the materials are crushed, and can be used for carrying out dry or wet grinding on various ores and other grindable materials. Most of the existing ball milling and smashing equipment simply adopts a horizontal structure, the barrel rotates to drive the materials inside and the grinding balls to overturn and stir and then to collide, so that smashing and grinding are carried out, the working efficiency is extremely low, the structure is huge, in addition, the grinding effect is extremely poor when the materials of larger blocks are ground, and a product with smaller granularity cannot be directly obtained. How to simplify the process and improve the efficiency to obtain a product with smaller granularity is a problem to be solved urgently.
In addition, the existing equipment still has the problem of damaging because of receiving the impact of material in the course of the work, and wherein, the part life of a plurality of key positions is short, and can have very big influence to work efficiency.
Therefore, it is desirable to provide a new ball mill mixer to solve the above problems.
Disclosure of Invention
The invention mainly aims to provide a vertical rotary cone ball mill, and aims to solve the problems that the existing ball milling and crushing equipment is low in treatment efficiency and easy to damage.
In order to achieve the purpose, the vertical rotary cone ball mill provided by the invention comprises a mill body, a driving device, a slewing bearing, a movable cone device, a fixed cone device, a buffering device and a plurality of grinding balls, wherein the slewing bearing, the movable cone device, the fixed cone device, the buffering device and the plurality of grinding balls are all arranged on the mill body; the driving device can drive the movable cone device to rotate around the axis of the fixed cone device through the slewing bearing, the fixed cone device is arranged on the machine body through the buffer device, and the grinding balls are placed between the movable cone device and the fixed cone device to be used for grinding materials together.
Preferably, a plurality of stirring paddles for stirring materials and pushing the grinding balls are arranged on the movable cone device.
Preferably, the buffering device comprises a plurality of guide rods distributed at intervals around the fixed cone device and an elastic member sleeved on the guide rods, and the elastic member is pre-compressed between the fixed cone device and the machine body.
Preferably, one end of the guide rod is mounted on the fixed cone device, and the other end of the guide rod is mounted on the machine body, and the guide rod can slide relative to the fixed cone device and/or the machine body.
Preferably, the vertical rotary cone ball mill further comprises a dust blocking assembly, wherein the dust blocking assembly is arranged between the rotary support and the fixed cone device and surrounds the fixed cone device to prevent materials from overflowing.
Preferably, the fixed cone device comprises a mounting frame and a fixed cone cylinder arranged on the mounting frame, the peripheral surface of the fixed cone cylinder is a grinding surface, and the buffer device is arranged between the mounting frame and the machine body;
the dust blocking assembly comprises a dust blocking ring fixedly mounted on the mounting frame and a sealing felt arranged between the dust blocking ring and the slewing bearing.
Preferably, the dirt ring includes coaxial coupling's contact ring, go-between and collar in proper order, the collar is fixed mounting in cyclic annular flat board on the mounting bracket, the internal diameter of the first end of go-between is greater than the internal diameter of the second end of go-between, the contact ring is cylindricly just the sealing felt set up in the contact ring with between the slewing bearing, the first end of go-between with the one end of contact ring is connected just the second end of go-between with the inboard of collar is connected.
Preferably, the vertical rotary cone ball mill further comprises an inverted cone cylinder provided with a flange edge, the flange edge is fixedly installed on the installation frame, the buffer device is located between the flange edge and the machine body, and materials between the movable cone device and the fixed cone device can enter the inverted cone cylinder through grinding to be discharged.
Preferably, the slewing bearing comprises a fixed ring fixedly arranged on the machine body, a rotating ring coaxially arranged with the fixed ring and a rolling body arranged between the fixed ring and the rotating ring, the movable cone device is arranged on the rotating ring, external teeth are arranged on the rotating ring, and the driving device can drive the rotating ring to rotate through a gear.
In the technical scheme of the invention, the grinding balls are placed between the movable cone device and the fixed cone device, the movable cone device can drive the grinding balls to roll, and the grinding balls, the movable cone device and the fixed cone device work together to grind materials together, so that when coarse-particle materials are treated, the process can be simplified, the efficiency is improved, a better grinding effect is obtained, and products meeting the particle size requirement are directly obtained. Moreover, the slewing bearing is a large bearing capable of bearing comprehensive loads, can bear larger axial and radial loads and overturning moment, the movable cone device is rotatably arranged on the machine body through the slewing bearing, and the driving device can drive the movable cone device to rotate around the fixed cone device through the slewing bearing, so that the stability of the movable cone device in the rotating process can be improved. Slewing bearing has good bearing capacity to can adapt to the broken processing of large granule material, and, slewing bearing is difficult wearing and tearing and has longer life. In addition, the fixed cone device is arranged on the machine body through the buffer device, the buffer device can absorb impact force generated by materials in the crushing process, the movable cone device and the fixed cone device can be matched with each other to grind, and meanwhile, the fixed cone device can be prevented from being damaged due to the impact force to play a role of overload protection, so that the service life of the fixed cone device can be greatly prolonged. Through the cooperation of slewing bearing, ball and buffer, can make the material obtain abundant grinding, increase the effective duration of operation of vertical rotary cone ball mill to can reduce the maintenance number of times, and then can promote the work efficiency and the grinding effect of vertical rotary cone ball mill by a wide margin.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a vertical rotary cone ball mill according to an embodiment of the present invention;
fig. 2 is an enlarged view of a point a in fig. 1.
The reference numbers illustrate:
10. a body; 11. a feed inlet; 20. a drive device; 21. a gear; 30. a slewing bearing; 31. a stationary ring; 32. rotating the ring; 40. a movable cone device; 41. a movable conical ring; 42. a support; 43. a stirring paddle; 50. a fixed cone device; 51. a mounting frame; 52. a fixed cone cylinder; 53. a liner plate; 54. a counterweight balance block; 60. an inverted cone; 61. a flange rim; 62. a discharge port; 70. a buffer device; 71. a guide bar; 72. an elastic member; 90. a dust blocking assembly; 91. a dust ring; 911. a contact ring; 912. a connecting ring; 913. a mounting ring; 92. sealing the felt; 100. and (5) grinding balls.
The objects, features and advantages of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments will be described clearly and completely with reference to the drawings in the embodiments, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indications (such as up, down, left, right, front, and rear … …) in the present embodiment are only used to explain the relative positional relationship between the components, the movement, and the like in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indication is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, the vertical rotary cone ball mill provided by the present invention comprises a machine body 10, a driving device 20, and a rotary support 30, a movable cone device 40, a fixed cone device 50, a buffering device 70 and a plurality of grinding balls 100 all disposed on the machine body 10; the driving device 20 can drive the moving cone device 40 to rotate around the axis of the fixed cone device 50 through the slewing bearing 30, the fixed cone device 50 is arranged on the machine body 10 through the buffer device 70, and the grinding balls 100 are placed between the moving cone device 40 and the fixed cone device 50 to be used for grinding materials together. In the process of grinding the material, the moving cone device 40 and the fixed cone device 50 together extrude the material, and the grinding balls 100 roll along with the moving cone device 40 to be in full contact with the material for extrusion grinding, so that enough extrusion force can be generated to grind the material. Referring to fig. 1, in the vertical rotary cone ball mill, the movable cone device 40 may be in an annular structure, and the movable cone device 40 may rotate around the fixed cone device 50, that is, the movable cone device 40 is outside the fixed cone device 50. Alternatively, in another embodiment, the fixed cone device 50 may have a ring structure, and the movable cone device 40 may be rotatable around the axis of the fixed cone device 50 in the fixed cone device 50, that is, the fixed cone device 50 is outside the movable cone device 40.
In the above embodiment, the grinding balls 100 are placed in the cavity formed between the movable cone device 40 and the fixed cone device 50, the movable cone device 40 drives the grinding balls to roll, and the grinding balls, the movable cone device 40 and the fixed cone device 50 work together to grind the materials together, so that when coarse-grained materials are processed, the process can be simplified, the efficiency can be improved, a better grinding effect can be obtained, and products with fine granularity can be directly obtained. Furthermore, the slewing bearing 30 is a large bearing capable of bearing comprehensive loads, and can simultaneously bear large axial and radial loads and overturning moments, the moving cone device 40 is rotatably mounted on the machine body 10 through the slewing bearing 30, and the driving device 20 can drive the moving cone device 40 to rotate around the fixed cone device 50 through the slewing bearing 30, so that the stability of the moving cone device 40 in the rotating process can be improved. Slewing bearing 30 has good bearing capacity to can adapt to the shredding of large granule material, and slewing bearing 30 is difficult wearing and tearing and has longer life. In addition, the fixed cone device 50 is disposed on the machine body 10 through the buffer device 70, the buffer device 70 can absorb impact force generated during the crushing process of the material, and if the crushing process encounters too hard material or sundries, unexpected damage can be avoided through the buffer device 70 when no overload protection measures or protection is unreliable. When guaranteeing that moving cone device 40 and fixed cone device 50 can mutually support in order to carry out the grinding work, can also prevent that fixed cone device 50 from being defective because of the impact force, also avoid being forced down the maintenance because of the defect of fixed cone device 50 or the huge harm of many important parts of organism to can promote fixed cone device 50's life by a wide margin, and then can practice thrift production time and improve production efficiency.
In the preferred embodiment, the diameters of the plurality of grinding balls 100 are different, but the diameter of each grinding ball 100 is larger than the minimum gap between the movable cone device 40 and the fixed cone device 50, so as to prevent the grinding balls 100 from falling down between the movable cone device 40 and the fixed cone device 50. And, the hardness and strength of the grinding ball 100 are respectively greater than those of the material to prevent the grinding ball 100 from being broken during the grinding of the material. In order to increase the rolling frequency and the moving range of the grinding balls 100 between the moving cone device 40 and the fixed cone device 50, a plurality of paddles 43 for stirring the material and pushing the grinding balls 100 may be disposed on the moving cone device 40, so that the material grinding effect and efficiency can be further improved. The stirring paddles 43 are distributed on the inner wall of the annular moving cone device 40, and the length of each stirring paddle 43 is matched with the size of the gap between the moving cone device 40 and the fixed cone device 50 at different heights. Wherein in all embodiments, the grinding balls 100 remain in the cavity at all times without falling out.
In addition, in the above-described embodiment, the buffer device 70 may have various forms as long as it can buffer the vibration of the fixed cone device 50 in operation. In a preferred embodiment, referring to fig. 1 again, the buffering device 70 may include a plurality of guide rods 71 spaced around the fixed cone device 50 and an elastic member 72 sleeved on the guide rods 71, wherein the elastic member 72 is pre-compressed between the fixed cone device 50 and the machine body 10, so as to buffer the vibration transmitted from the fixed cone device 50 to the machine body 10. Moreover, the number of the elastic members 72 may also be multiple, the plurality of elastic members 72 may be sleeved on the guide rods 71 in a one-to-one correspondence manner, and the plurality of guide rods 71 are uniformly distributed at intervals along the circumferential direction of the fixed cone device 50, so that the force applied by the movable cone device 40 to the fixed cone device 50 can be uniformly dispersed, and the fixed cone device 50 is effectively prevented from being damaged by the impact force generated during material crushing.
Further, one end of the guide rod 71 is mounted on the fixed cone device 50 and the other end is mounted on the machine body 10, and the guide rod 71 can slide relative to the fixed cone device 50 and/or the machine body 10. For example, one end of the guide rod 71 is fixedly mounted on the fixed cone device 50, and the other end of the guide rod 71 is movably mounted on the machine body 10; alternatively, one end of the guide rod 71 is mounted on the fixed cone device 50 and can slide on the fixed cone device 50, and the other end of the guide rod 71 is fixed on the machine body 10. One end of the guide rod 71 is mounted (may be fixedly mounted or slidably mounted) on the fixed cone device 50, and the other end of the guide rod 71 is movably mounted on the machine body 10 and can slide on the machine body 10 along the extending direction of the guide rod 71, that is, the fixed cone device 50 can slide relative to the machine body 10 along the axial direction of the guide rod 71 within a certain range. When the elastic member 72 is disposed between the body 10 and the fixed cone device 50, the effect of buffering vibration can be achieved. Specifically, the fixed cone device 50 may be shifted downward by a certain distance due to vibration during operation, and the vibration generated by the shift is absorbed by the elastic member 72, so that the vibration transmitted to the machine body 10 can be attenuated, and the purposes of buffering, vibration reduction and overload protection can be achieved.
As shown in fig. 1, the guide rod 71 may be a mounting bolt or a mounting stud, mounting holes are formed in the fixed cone device 50 and the machine body 10, the mounting bolt is mounted in the mounting hole, a mounting nut is arranged on the mounting bolt, and the machine body 10 and the fixed cone device 50 are located between the mounting nut and a bolt head of the mounting bolt. The elastic member 72 may be a spring or a rubber sleeve, and the elastic member 72 is sleeved on the guide rod 71, so that the vibration transmitted from the fixed cone device 50 to the machine body 10 when the vertical type rotary cone ball mill works can be reduced, the service life of each bolt or screw is prevented from being influenced by the vibration, and the connection stability between each component on the machine body 10 is ensured. More importantly, due to the existence of the elastic piece 72, the acting force between the fixed cone device 50 and the material and the moving cone device 40 is dispersed, so that the abrasion of the fixed cone device 50 and the moving cone device 40 can be reduced, and the service life of the vertical rotary cone ball mill is prolonged.
In addition, in a more preferred embodiment, a limit nut may be further sleeved on the mounting bolt, and the elastic member 72 is located between the limit nut and the fixed cone device 50, so as to adjust the compression pre-tightening force of the elastic member 72 according to the working condition, thereby adjusting the offset range of the fixed cone device 50 in the working process, and improving the adaptation range of the vertical rotary cone ball mill. For example, when large-particle materials are crushed, the limiting nut can be far away from one side of the fixed cone device 50 to increase the offset range of the fixed cone device 50.
In another embodiment, the damping device 70 may further include a plurality of damping hydraulic cylinders spaced around the fixed cone device 50, one end of each damping hydraulic cylinder is connected to the fixed cone device 50, and the other end of each damping hydraulic cylinder is connected to the machine body 10. The hydraulic oil in the buffering hydraulic cylinder can absorb the vibration transmitted to the fixed cone device 50 during material crushing, and the position deviation of the fixed cone device 50 can be converted into the telescopic motion of the buffering hydraulic cylinder, so that the aim of buffering vibration reduction is fulfilled.
Further, in a more preferred embodiment, as shown in fig. 2, the vertical type rotary cone ball mill further comprises a dust blocking assembly 90 disposed between the rotary support 30 and the fixed cone device 50 and surrounding the fixed cone device 50 for preventing the material from overflowing. Wherein, through the cooperation of slewing bearing 30, ball 100 and buffer 70, can make the material obtain abundant grinding, increase vertical rotary cone ball mill's effective duration of working to can reduce the maintenance number of times, and then can promote vertical rotary cone ball mill's work efficiency and grinding effect by a wide margin. Just because the damping device 70 can greatly affect the working efficiency of the whole machine and the service life of important parts, the damping device 70 needs to be specially protected to improve the reliability of the damping device 70. Be provided with between slewing bearing 30 and the fixed cone device 50 and keep off dirt subassembly 90, it is sealed reliable, can prevent that the material from overflowing from the middle part of organism 10 to avoid the dust that the comminuted produced to influence buffer 70's performance, guarantee the cleanness of moving part (buffer 70 and fixed cone device 50 etc.), protect slewing bearing 30 etc. key work piece normal operating and make lubricated unobstructed, also avoid dust polluted environment. Wherein, during the operation, the fixed cone device 50 will follow the buffer device 70 to perform a small range polarization.
Decide awl device 50 includes mounting bracket 51 and sets up the awl drum 52 of deciding on mounting bracket 51, is provided with welt 53 on the outer peripheral face of awl drum 52 of deciding, and the surface of welt 53 is smooth surface and welt 53 is made by wear-resistant material to promote the life of deciding awl device 50, in order to reduce maintenance duration, improve production efficiency. Wherein, the fixed cone cylinder 52 is provided with a lining plate 53 by a fastener (for example, a screw, etc.) to facilitate the installation and the removal. Wherein, the buffer device 70 is located between the mounting frame 51 and the machine body 10. After the materials are ground between the moving cone device 40 and the fixed cone device 50, the materials directly overflow from a discharge gap at the lower part of a grinding cavity consisting of the lining plate 53 on the fixed cone cylinder 52 and the lining plate on the moving cone device 40, and pass through the inverted cone cylinder 60 until reaching a discharge port 62. Referring to fig. 2, the dust blocking assembly 90 includes a dust blocking ring 91 fixedly mounted on the mounting frame 51 and a sealing felt 92 disposed between the dust blocking ring 91 and the slewing bearing 30 (specifically, a supporting ring below the fixing ring 31). In the working process of the vertical rotary cone ball mill, the mounting frame 51 can be vertically deviated along with the buffer device 70, so that the dust blocking ring 91 can be vertically deviated, and the gap in the deviation process of the dust blocking ring 91 is sealed by the sealing felt 92, so that the crushed material between the fixed cone device 50 and the movable cone device 40 is prevented from overflowing from the machine body 10 and the buffer device 70, and the dust blocking effect is improved.
In a preferred embodiment, referring again to fig. 2, in order to facilitate installation of the dust blocking assembly 90, the dust blocking ring 91 includes a contact ring 911, a connection ring 912 and a mounting ring 913 coaxially connected in sequence, the mounting ring 913 is an annular flat plate fixedly installed on the mounting bracket 51, an inner diameter of a first end of the connection ring 912 is larger than an inner diameter of a second end of the connection ring 912, the contact ring 911 is cylindrical, the sealing felt 92 is disposed between the contact ring 911 and the slewing bearing 30, the first end of the connection ring 912 is connected with one end of the contact ring 911, and the second end of the connection ring 912 is connected with an inner side of the mounting ring 913. Wherein, the mounting ring 913 is fixedly mounted on the mounting bracket 51 by a plurality of bolts, which are located at the outer side of the connection ring 912, so as not to be contaminated by dust, thereby ensuring the fastening effect. The connecting ring 912 is in a shape with a large upper part and a small lower part, and a necking is formed at the lower end, so that materials or dust entering the connecting ring 912 can fall along the inclined inner wall and then through meshes of the mounting rack 51. In addition, since the contact ring 911 is cylindrical, a uniform gap may be formed between the contact ring 911 and the backup ring to facilitate installation of the seal felt 92.
In order to facilitate the discharge of the material, referring to fig. 1 again, the vertical rotary cone ball mill further includes an inverted cone 60 provided with a flange edge 61, the flange edge 61 is fixedly mounted on the mounting frame 51, the buffer device 70 is located between the flange edge 61 and the machine body 10, and the material between the movable cone device 40 and the fixed cone device 50 can enter the inverted cone 60 to be discharged after being ground. The main aspects of the inverted cone 60 are arranged upwards and the small aspects are arranged downwards, the inner diameter of the main aspects of the inverted cone 60 is larger than the inner diameter of the lower end of the movable cone device 40, the inverted cone 60 can follow the fixed cone device 50 to deviate together in the grinding process, so that the materials can be prevented from running out of the gap of the machine body 10, the materials can be guided to the discharge hole 62 through the inclined inner wall of the inverted cone 60 after being completely ground, and the materials can be discharged conveniently.
Referring to fig. 1 again, in an embodiment, a counterweight 54 is disposed at the top end of the fixed cone cylinder 52, and the counterweight 54 can increase the balance of the fixed cone device 50, and can improve the stability of the fixed cone device 50, so as to prevent the fixed cone device 50 from overturning during operation. In addition, the counterweight 54 is disposed corresponding to the feeding hole 11, so that the material can be distributed on the lining plate 53 more smoothly and uniformly.
In addition, in a preferred embodiment, the slewing bearing 30 includes a fixed ring 31 fixedly disposed on the machine body 10, a rotating ring 32 coaxially disposed with the fixed ring 31, and rolling elements disposed between the fixed ring 31 and the rotating ring 32, the moving cone device 40 is disposed on the rotating ring 32, and the rotating ring 32 is provided with external teeth, so that the driving device 20 can drive the rotating ring 32 to rotate through the gear 21. As shown in fig. 1 and 2, the fixing ring 31 may be mounted on the machine body 10 through a supporting ring, that is, the pivoting support 30 is supported by the supporting ring, so that the awl apparatus 40 can be located at a predetermined position, and thus can be better matched with the awl apparatus 50. In the above embodiment, the positions of the fixed ring 31 and the rotating ring 32 of the slewing bearing 30 can also be set according to the actual situation, for example, the fixed ring 31 is on the outer side and the rotating ring 32 is on the inner side of the fixed ring 31, or the fixed ring 31 is on the inner side and the rotating ring 32 is on the outer side of the fixed ring 31, and both of the arrangements can ensure the stability requirement of the rotating support of the moving cone device 40. In the preferred embodiment, the rotating ring 32 is disposed inside the fixed ring 31 as shown in fig. 1, and the fixed ring 31 can be fixedly mounted on the machine body 10 by a plurality of bolts or screws, in consideration of the proper arrangement of the components in the attritor. Also, from the viewpoint of the transmission manner, providing the rotating ring 32 as an external gear ring facilitates the arrangement of the transmission assembly, and specifically, the outer circumferential surface of the rotating ring 32 is uniformly provided with external teeth. Referring to fig. 1 again, the driving device 20 drives the gear 21 to rotate, and the gear 21 is meshed with the external teeth to drive the rotating ring 32 to rotate, so that the space of the rotating ring 32 can be reasonably utilized, and the space occupation of the driving device 20 on the vertical type rotary cone ball mill is reduced. The driving device 20 may be an electric motor or a hydraulic motor.
The movable cone device 40 includes a bracket 42 and a movable cone ring 41 fixedly disposed on the bracket 42, the bracket 42 is fixedly disposed on the rotating ring 32, and the movable cone ring 41 is disposed around the fixed cone device 50. As shown in fig. 1, the bracket 42 includes an installation cylinder adapted to the movable conical ring 41 and an annular installation plate extending outward from an outer peripheral surface of the installation cylinder, the installation cylinder is adapted to the movable conical ring 41 in shape, an outer edge of the installation plate is connected to the rotating ring 32 by a bolt or a screw, the fixed ring 31 is located between the rotating ring 32 and the installation cylinder, and the movable conical ring 41 is fixedly attached to the inner peripheral surface of the installation cylinder. The movable cone ring 41 and the fixed cone cylinder 52 are correspondingly arranged, the movable cone ring 41 can rotate around the fixed cone cylinder 52 under the action of the rotating ring 32, materials can be crushed between the movable cone ring 41 and the fixed cone cylinder 52, and the crushed materials can fall into the inverted cone 60 from the lower end of the movable cone ring 41 and slide out of the equipment through the discharge hole 62.
In order to enlarge the volume of the vertical rotary cone ball mill, in a preferred embodiment, referring to fig. 1, the fixed cone cylinder 52 is in a circular truncated cone shape (the outer diameter of the upper end is smaller than that of the lower end), the movable cone ring 41 is in a substantially cylindrical shape, and the lower end of the movable cone ring 41 forms an outer expanding edge matched with the circular truncated cone-shaped fixed cone cylinder 52, wherein the gap between the movable cone ring 41 and the fixed cone cylinder 52 is gradually reduced along the moving direction of the material, so that the material is gradually ground to a required granularity level in the moving process. When the movable cone 41 is rotatably supported by the rotary bearing 30 having the same size, if the outer diameter of the upper end of the fixed cone cylinder 52 is reduced inward, the amount of material to be processed per unit time, the capacity and the moving range of the grinding balls 100 can be increased, and thus the working efficiency of the vertical rotary cone ball mill can be improved.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (5)
1. The vertical rotary cone ball mill is characterized by comprising a mill body, a driving device, a slewing bearing, a movable cone device, a fixed cone device, a buffering device and a plurality of grinding balls, wherein the slewing bearing, the movable cone device, the fixed cone device, the buffering device and the plurality of grinding balls are all arranged on the mill body; the driving device can drive the movable cone device to rotate around the axis of the fixed cone device through the slewing bearing, the fixed cone device is arranged on the machine body through the buffer device, and the grinding balls are placed between the movable cone device and the fixed cone device to be used for grinding materials together;
the vertical rotary cone ball mill further comprises a dust blocking assembly, and the dust blocking assembly is arranged between the rotary support and the fixed cone device and surrounds the fixed cone device to prevent materials from overflowing;
the fixed cone device comprises an installation frame and a fixed cone cylinder arranged on the installation frame, the peripheral surface of the fixed cone cylinder is a grinding surface, and the buffer device is arranged between the installation frame and the machine body;
the dust blocking assembly comprises a dust blocking ring fixedly mounted on the mounting frame and a sealing felt arranged between the dust blocking ring and the slewing bearing;
the dust blocking ring comprises a contact ring, a connecting ring and a mounting ring which are coaxially connected in sequence, the mounting ring is an annular flat plate fixedly mounted on the mounting frame, the inner diameter of the first end of the connecting ring is larger than that of the second end of the connecting ring, the contact ring is cylindrical, the sealing felt is arranged between the contact ring and the slewing bearing, the first end of the connecting ring is connected with one end of the contact ring, and the second end of the connecting ring is connected with the inner side of the mounting ring;
the vertical rotary cone ball mill further comprises an inverted cone barrel provided with a flange edge, the flange edge is fixedly installed on the installation frame, the buffer device is located between the flange edge and the machine body, and materials between the movable cone device and the fixed cone device can enter the inverted cone barrel through grinding to be discharged.
2. The vertical rotary cone ball mill according to claim 1, wherein a plurality of stirring paddles for stirring a material and propelling the grinding balls are provided on the movable cone device.
3. The vertical rotary cone ball mill according to claim 1, wherein the buffering device comprises a plurality of guide rods spaced around the fixed cone device and an elastic member sleeved on the guide rods, and the elastic member is pre-compressed between the fixed cone device and the machine body.
4. The vertical rotary cone ball mill according to claim 3, wherein one end of the guide rod is mounted on the fixed cone device and the other end is mounted on the machine body, the guide rod being slidable with respect to the fixed cone device and/or the machine body.
5. The vertical rotary cone ball mill according to any one of claims 1-4, wherein the rotary support comprises a fixed ring fixedly disposed on the machine body, a rotating ring coaxially disposed with the fixed ring, and rolling bodies disposed between the fixed ring and the rotating ring, the movable cone device is disposed on the rotating ring, and the rotating ring is provided with external teeth, and the driving device can drive the rotating ring to rotate through a gear.
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| CN201810624700.6A CN108993651B (en) | 2018-06-16 | 2018-06-16 | Vertical rotary cone ball mill |
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| CN201810624700.6A CN108993651B (en) | 2018-06-16 | 2018-06-16 | Vertical rotary cone ball mill |
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| CN108993651B true CN108993651B (en) | 2020-07-28 |
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| CN109821600B (en) * | 2019-03-11 | 2021-02-19 | 四川省农业科学院分析测试中心 | Multi-pipe automatic grinder |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US5769339A (en) * | 1996-11-22 | 1998-06-23 | Nordberg, Inc. | Conical gyratory mill for fine or regrinding |
| CN2372055Y (en) * | 1999-05-19 | 2000-04-05 | 陈韧坚 | Mill type breaker |
| CN200960462Y (en) * | 2006-10-29 | 2007-10-17 | 赵建武 | Milling type crusher for fine crushing materials |
| CN200974022Y (en) * | 2006-11-01 | 2007-11-14 | 张独义 | Multifunctional mill |
| CN200987991Y (en) * | 2006-12-30 | 2007-12-12 | 洛阳中原矿山机械制造有限公司 | Pulverizing and grinding machine |
| CN101318156B (en) * | 2008-07-17 | 2010-11-10 | 攀钢集团研究院有限公司 | Ball feeding apparatus and method |
| CN201505536U (en) * | 2009-07-11 | 2010-06-16 | 祁阳宇晖机电实业有限公司 | Low-speed roller crusher |
| CN203678432U (en) * | 2014-01-04 | 2014-07-02 | 河南黎明重工科技股份有限公司 | Bidirectional positive-pressure thin oil sealing device of cone crusher |
| CN203778118U (en) * | 2014-04-18 | 2014-08-20 | 韶关市创力机械有限公司 | Dust-proof device for crusher |
| CN205164797U (en) * | 2015-11-23 | 2016-04-20 | 上海威力特重型矿山机械有限公司 | Single cylinder hydro cone crusher goes up shell structure |
| CN106984381A (en) * | 2016-01-21 | 2017-07-28 | 肖艳芳 | A kind of cam and gear integrate drive cone stone crusher |
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