CN222694837U

CN222694837U - Vertical roll mill is used in production of graphite negative pole

Info

Publication number: CN222694837U
Application number: CN202420971567.2U
Authority: CN
Inventors: 郭培瑞; 岳鹏
Original assignee: Ordos New Innovation Materials Co ltd; Shanxi Qinxin Energy Group Co Ltd
Current assignee: Ordos New Innovation Materials Co ltd; Shanxi Qinxin Energy Group Co Ltd
Priority date: 2024-05-07
Filing date: 2024-05-07
Publication date: 2025-04-01
Anticipated expiration: 2034-05-07

Abstract

The utility model relates to a vertical roll mill for graphite cathode production, which comprises a vertical machine body, a feed hopper, a main support, a roll body, a material collecting box and an air supply mechanism, wherein the feed hopper is arranged above the vertical machine body, the roll body is transversely arranged in the main support, the material collecting box is arranged below the roll body, the roll body comprises a plurality of layers of roll bodies arranged in the vertical direction, the plurality of layers of roll bodies are fixed on the main support through roll supports, and the air supply mechanism is respectively arranged at the top of the vertical machine body and in the material collecting box. The utility model can realize multi-stage rolling, ensure the uniformity of material crushing after rolling to the greatest extent, and avoid the occurrence of inconsistent material crushing caused by the offset of the roller system shaft.

Description

Vertical roll mill is used in production of graphite negative pole

Technical Field

The utility model relates to the technical field of roll milling, in particular to a vertical roll milling for graphite cathode production.

Background

The vertical roller mill is large-scale high-efficiency grinding equipment integrating grinding, air drying and grading, and mainly comprises a frame, a roller system, a transmission device, an air supply system and a roller mill device, wherein the material before grinding falls onto the roller system which is driven by a motor to rotate from a feed inlet, and one of the two roller systems is a fixed roller and the other is a driving roller. When the roll mill runs, the driving roll is close to the fixed roll, and huge pressure is generated between the two roll systems, so that the crushing of materials is realized. The ground finer material is then blown by a blower system to a separator, and the particles of the size that meet the standard move with the wind, pass through the separator, and are collected by a dust removal device as a finished product. Particles with the granularity not reaching the standard are intercepted by the separator, fall back to the grinding roller, and are ground again together with the newly input materials until the granularity reaches the standard. Based on this kind of unique structure, vertical roll-in mill collects grinding, dry, hierarchical integrated design, through adjusting the rotational speed, can reach the required thickness of different products, and the extraction that reaches standard in the vertical roll-in mill fine powder can be timely, avoided crossing the emergence of grinding phenomenon, the while has also reduced the waste to the energy, can also sustainable handling material, and the continuous required product of production in uninterrupted production process, can satisfy the requirement of mass production, improved production efficiency, consequently vertical roll-in mill has obtained wide application in actual production process.

In the preparation process of graphite negative electrode materials, vertical roller mill is needed to grind graphite, and current vertical roller mill only has one-level roll-in, is difficult to guarantee the uniformity of material crushing after the roll-in, and in addition, the bearing support of two roller systems is fixed respectively, produces the axle skew easily, leads to the material crushing degree inconsistent of roller system different positions.

Chinese patent CN215140399U discloses a lithium battery negative pole graphite raw materials reducing mechanism, it includes first crushing roller and second crushing roller, crushing motor drives crushing roller gear through first drive belt and rotates, and then makes crushing roller gear rotate first crushing roller synchronous rotation simultaneously, and crushing motor drives the driving gear through the second drive belt and rotates, meshes between driving gear and the driven gear, and then drives driven gear through the driving gear rotation and rotate and finally drive the synchronous rotation of second crushing roller. But only set up one-level roll-in this scheme, fall to screening conveyer belt promptly after the material grinds, be difficult to guarantee the uniformity of smashing of material after the roll-in. Another chinese patent CN117123308a discloses a device and a method for preparing a negative electrode material of a lithium battery, which is provided with a plurality of grinding rollers, but the grinding rollers are arranged side by side, and the grinding rollers belong to the same stage of rolling, so that the consistency of material crushing after rolling is still difficult to be ensured. Thus, there is a great room for improvement. In addition, the bearing holders of the roller system in the prior art are fixed respectively, so that shaft deviation is easy to occur, and the material crushing degree of different positions of the roller system is inconsistent.

Therefore, how to realize multi-stage rolling to ensure the uniformity of material crushing after rolling to the greatest extent and how to avoid the shaft deviation of the roller system are technical problems to be solved.

Disclosure of utility model

The utility model aims to provide a vertical roller mill for graphite cathode production, which solves the defects in the prior art, and the technical problem to be solved by the utility model is realized by the following technical scheme.

The utility model provides a graphite negative pole production is with vertical roll-in mill, includes vertical organism, feeder hopper, main support frame, roll body, collection workbin, air supply mechanism, the feeder hopper sets up vertical organism top, transversely be provided with in the main support frame the roll body, the roll body below is provided with the collection workbin, the roll body includes the multilayer roll body that sets up in vertical direction, the multilayer roll body passes through the roller support to be fixed on the main support frame, air supply mechanism sets up respectively vertical organism top with in the collection workbin.

Preferably, the air supply mechanism positioned at the top of the vertical machine body is a centrifugal fan, and the air supply mechanism positioned in the collecting box is a negative pressure fan.

Preferably, the centrifugal fans are divided into a left centrifugal fan and a right centrifugal fan, and are respectively positioned at two sides of the top of the vertical machine body.

Preferably, the multi-layer roller body is four layers, namely a first roller body, a second roller body, a third roller body and a fourth roller body from top to bottom.

Preferably, a roller motor is arranged on the outer side of the roller support, and the roller motor is positioned on the outer side of the vertical machine body and is connected with the roller support through a transmission shaft.

Preferably, each layer of roller body comprises a driving roller and a driven roller.

Preferably, the two roller supports are respectively a driving roller support and a driven roller support, and are semicircular, the semicircular roller supports respectively wrap the driving roller and the driven roller, and one sides of the two roller supports are fixedly connected together by a bearing connecting frame and are fixed on the main support frame.

Preferably, one side of the two roller supports is welded by a load-bearing connection.

Preferably, the other sides of the two roller supports are connected by a hydraulic connecting rod, one end of the hydraulic connecting rod is welded and fixed with the driven roller support, and the other end of the hydraulic connecting rod is sleeved with the driving roller support by a transmission shaft.

Preferably, a roller bearing is arranged at the center of the driving roller, and the roller bearing is connected with the roller motor through the transmission shaft.

Preferably, a sleeve ring is further arranged on the outer side of the roller bearing.

Preferably, a material guide plate is arranged below the feeding hopper and is obliquely arranged above the multi-layer roller body.

According to the utility model, in the preparation process of the graphite anode material, the multi-layer roller bodies are arranged, so that the multi-layer grinding of the material can be realized, the grinding granularity after grinding is ensured to be the same, and the problem of inconsistent grinding granularity caused by one layer of roller bodies is avoided. The air supply mechanism is divided into a centrifugal fan located above the vertical machine body and a negative pressure fan located in the material collecting box, and the arrangement modes of the fans at different positions not only can ensure that the ground powder after grinding enters the separator, but also can avoid grinding powder accumulation caused by dead angles of the vertical machine body. The driving roller and the driven roller are fixed in the roller bracket through the bearing connecting frame, so that when the roller grinding work, the shafts of the driving roller and the driven roller do not deviate relatively, and the grinding accuracy and the grinding consistency of the grinding powder are further improved. The stock guide that the feeder hopper below slope set up can be with the material transport to the oblique top of roller for the material can be better by the broken of roller, thereby improves crushing efficiency.

According to the vertical roller mill for graphite cathode production, provided by the utility model, the consistency of material crushing after rolling can be ensured to the greatest extent by arranging the multistage rolling, and the driving roller and the driven roller are fixed together through the bearing connecting frame, so that the phenomenon of shaft offset of the roller system is prevented.

Drawings

FIG. 1 is a schematic view of the overall structure of a vertical roller mill according to the present utility model;

FIG. 2 is a schematic cross-sectional view of a roll stand of the present utility model;

The drawing comprises the following components of a vertical machine body 1, a feed hopper 3, a main support frame 4, a material collecting box 5, a first roller body 6, a second roller body 7, a third roller body 8, a fourth roller body 9, a roller support 10, a roller motor 11, a transmission shaft 12, a negative pressure fan 13, a left centrifugal fan 14, a right centrifugal fan 15, a driving roller support 16, a driven roller support 17, a driving roller 18, a driven roller 19, a bearing connecting frame 20, a hydraulic connecting rod 21, a sleeve ring 22 and a roller bearing.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

Example 1:

As shown in FIG. 1, the vertical roller mill for graphite cathode production comprises a vertical machine body, a feed hopper, a main support, a roller body, a material collecting box and an air supply mechanism, wherein the feed hopper is arranged above the vertical machine body, the roller body is transversely arranged in the main support, the material collecting box is arranged below the roller body, the roller body comprises a plurality of layers of roller bodies arranged in the vertical direction, the plurality of layers of roller bodies are fixed on the main support through roller supports, and the air supply mechanism is respectively arranged at the top of the vertical machine body and in the material collecting box.

Further, the air supply mechanism positioned at the top of the vertical machine body is a centrifugal fan, and the air supply mechanism positioned in the collecting box is a negative pressure fan.

Further, the centrifugal fans are divided into a left centrifugal fan and a right centrifugal fan, and are respectively positioned at two sides of the top of the vertical machine body.

Further, the multi-layer roller body is four layers, namely a first roller body, a second roller body, a third roller body and a fourth roller body from top to bottom.

Further, a roller motor is arranged on the outer side of the roller support, and the roller motor is positioned on the outer side of the vertical machine body and is connected with the roller support through a transmission shaft.

According to the utility model, in the preparation process of the graphite anode material, the multi-layer roller bodies are arranged, so that the multi-layer grinding of the material can be realized, the grinding granularity after grinding is ensured to be the same, and the problem of inconsistent grinding granularity caused by one layer of roller bodies is avoided. The air supply mechanism is divided into a centrifugal fan located above the vertical machine body and a negative pressure fan located in the material collecting box, and the arrangement modes of the fans at different positions not only can ensure that the ground powder after grinding enters the separator, but also can avoid grinding powder accumulation caused by dead angles of the vertical machine body.

Example 2:

As shown in fig. 2, on the basis of embodiment 1, each layer of the roller body includes a driving roller and a driven roller.

Further, the two roller supports are respectively a driving roller support and a driven roller support, the driving roller support and the driven roller support are respectively wrapped by the semicircular roller supports, and one sides of the two roller supports are fixedly connected together by a bearing connecting frame and are fixed on the main support frame.

Further, one side of the two roller supports is welded and connected through a bearing connecting frame.

Further, the other sides of the two roller supports are connected by a hydraulic connecting rod, one end of the hydraulic connecting rod is welded and fixed with the driven roller support, and the other end of the hydraulic connecting rod is sleeved with the driving roller support by a transmission shaft.

Further, a roller bearing is arranged at the center of the driving roller, and the roller bearing is connected with the roller motor through the transmission shaft.

Further, a sleeve ring is further arranged on the outer side of the roller bearing.

Further, the material guide plate is arranged below the feeding hopper and is obliquely arranged above the multilayer roller body.

In the utility model, the driving roller and the driven roller are fixed in the roller bracket through the bearing connecting frame, so that when the roller grinding work, the shafts of the driving roller and the driven roller do not deviate relatively, and the grinding accuracy and the grinding consistency of the grinding powder are further improved. The stock guide that the feeder hopper below slope set up can be with the material transport to the oblique top of roller for the material can be better by the broken of roller, thereby improves crushing efficiency.

It should be noted that the foregoing detailed description is exemplary and is intended to provide further explanation of the application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly indicates otherwise. Furthermore, it will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, steps, operations, devices, components, and/or groups thereof.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or otherwise described herein.

Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those elements but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Spatially relative terms, such as "above," "upper" and "upper surface," "above" and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the process is carried out, the exemplary term "above" may be included. Upper and lower. Two orientations below. The device may also be positioned in other different ways, such as rotated 90 degrees or at other orientations, and the spatially relative descriptors used herein interpreted accordingly.

In the above detailed description, reference is made to the accompanying drawings, which form a part hereof. In the drawings, like numerals typically identify like components unless context indicates otherwise. The illustrated embodiments described in the detailed description, drawings, and claims are not meant to be limiting. Other embodiments may be utilized, and other changes may be made, without departing from the spirit or scope of the subject matter presented herein.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The vertical roller mill for graphite cathode production is characterized by comprising a vertical machine body (1), a feed hopper (2), a main support frame (3), a roller body, a material collecting box (4) and an air supply mechanism, wherein the feed hopper (2) is arranged above the vertical machine body (1), the roller body is transversely arranged in the main support frame (3), the material collecting box (4) is arranged below the roller body, the roller body comprises a plurality of layers of roller bodies arranged in the vertical direction, the plurality of layers of roller bodies are fixed on the main support frame (3) through roller supports (9), and the air supply mechanism is respectively arranged at the top of the vertical machine body and in the material collecting box (4).

2. The vertical roller mill for graphite cathode production according to claim 1, wherein the air supply mechanism positioned at the top of the vertical machine body (1) is a centrifugal fan, and the air supply mechanism positioned in the collecting box (4) is a negative pressure fan.

3. The vertical roller mill for graphite cathode production according to claim 2, wherein the centrifugal fans are divided into a left centrifugal fan (13) and a right centrifugal fan (14), and the two centrifugal fans are respectively positioned on two sides of the top of the vertical machine body (1).

4. The vertical roller mill for producing graphite negative electrodes according to claim 1, wherein the multi-layer roller body is four layers, namely a first roller body (5), a second roller body (6), a third roller body (7) and a fourth roller body (8) from top to bottom.

5. The vertical roller mill for graphite cathode production according to claim 1, wherein a roller motor (10) is arranged on the outer side of the roller support (9), and the roller motor (10) is positioned on the outer side of the vertical machine body (1) and is connected with the roller support (9) through a transmission shaft (11).

6. A vertical roll mill for producing graphite negative electrode according to claim 5, wherein each layer of the roll body comprises a driving roll (17) and a driven roll (18).

7. A vertical roller mill for graphite cathode production according to claim 6, wherein two roller supports (9) are respectively a driving roller support (15) and a driven roller support (16), the semicircular roller supports are respectively wrapped around the driving roller (17) and the driven roller (18), and one sides of the two roller supports (9) are fixedly connected together by a bearing connecting frame (19) and are fixed on the main support.

8. A vertical roller mill for graphite negative electrode production according to claim 7, characterized in that one side of the two roller supports (9) is welded by means of a load-bearing connection (19).

9. The vertical roller mill for graphite cathode production according to claim 7, wherein the other sides of the two roller supports (9) are connected by a hydraulic connecting rod (20), one end of the hydraulic connecting rod (20) is welded and fixed with the driven roller support (16), and the other end is sleeved and connected with the driving roller support (15) by a transmission shaft.

10. The vertical roller mill for graphite cathode production as claimed in claim 6, wherein a roller bearing (22) is arranged at the center of the driving roller (17), and the roller bearing (22) is connected with the roller motor (10) through the transmission shaft (11).

11. The vertical roller mill for graphite cathode production as claimed in claim 10, wherein a sleeve ring (21) is further arranged on the outer side of the roller bearing (22).

12. The vertical roll mill for graphite cathode production of claim 1, wherein a guide plate is arranged below the feed hopper (2), and the guide plate is obliquely arranged above the multi-layer roll body.