Circulating conveying mechanism for centrifugal machine and centrifugal line
By using a chain-driven circulation conveyor mechanism in the centrifuge circulation conveyor line, the steering and stop of the tooling plate are automatically achieved, which solves the problems of looseness and deformation of the centrifuge parts in the prior art, and improves the separation effect and service life of the centrifuge.
Patent Information
- Application Number
- CN202422248998.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-13
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-09-13
AI Technical Summary
The existing centrifuge circulation conveying line turns the tooling plate and the centrifuge by rotating the cylinder, and stops the tooling plate and the centrifuge by blocking the cylinder and buffering elements, resulting in the problems of loosening, deforming or even disintegrating internal parts of the centrifuge.
The circulating conveying mechanism including a frame, a drive device, a guide rail and a plurality of tool plates is adopted. The first sprocket, the second sprocket and the chain are used to cooperate, and the chain drive the chain to rotate circulating, driving the tool plate to move along the guide rail, realizing the automatic steering and stop of the tool plate, avoiding collisions, and canceling the rotating cylinder and buffer elements.
It avoids collisions between the tooling plate and the centrifuge, ensures the separation effect and service life of the centrifuge, and improves the stability and reliability of the equipment.
Smart Images

Figure CN223184721U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a transport device, in particular to a circulating transport mechanism and a centrifugal line used for a centrifuge. Background Art
[0002] A centrifuge is a machine that uses centrifugal force to separate liquids from solid particles or components in a mixture of liquids and liquids.
[0003] Since it takes a certain amount of time for a centrifuge to separate a mixture, multiple centrifuges are generally used to separate a large amount of mixture. In order to further improve the separation efficiency, multiple centrifuges are placed on a circulating conveyor line for circulation. By discharging and retrieving materials from multiple centrifuges in sequence, the purpose of using multiple centrifuges in parallel is achieved, thereby processing more materials at the same time, improving the efficiency of the entire production process, and meeting larger-scale production needs.
[0004] The existing centrifuge circulation conveyor line mainly drives the upper tooling plate and centrifuge through a double-speed chain, and changes the direction of the tooling plate and centrifuge by rotating the cylinder 90 degrees. When discharging and removing materials from the centrifuge, the tooling plate and centrifuge are stopped at the specified position by blocking the cylinder and buffering elements. This causes multiple collisions during the entire circulation process, which can easily cause the internal parts of the centrifuge to loosen, deform, or even fall apart. Utility Model Content
[0005] The purpose of the utility model is to provide a circulating conveying mechanism and a centrifugal line for a centrifuge, so as to solve the problem that the internal parts of the centrifuge become loose, deformed or even fall apart, caused by the existing centrifuge circulating conveying line requiring the use of a rotating cylinder to realize the steering of the tooling plate and the centrifuge, and the use of a blocking cylinder and a buffer element to realize the stopping of the tooling plate and the centrifuge.
[0006] In order to achieve the above-mentioned object, the utility model provides a circulating conveying mechanism for a centrifuge, which includes a frame, a driving device, a guide rail and a plurality of tooling plates;
[0007] The driving device includes a first sprocket, a second sprocket, a chain and a motor;
[0008] The frame includes a left end and a right end located at two opposite sides, the first sprocket and the second sprocket are horizontally arranged, the first sprocket is arranged at the top of the right end of the frame, and the second sprocket is arranged at the top of the left end of the frame, and the first sprocket and the second sprocket are both rotatably connected to the frame; the motor is arranged at the bottom of the frame, and the output shaft of the motor is connected to the first sprocket for driving the first sprocket to rotate; the chain is meshed with the first sprocket and the second sprocket respectively, and the first sprocket is transmission-connected to the second sprocket via the chain;
[0009] The guide rail is fixedly connected to the top of the frame and is arranged in parallel around the outer periphery of the chain;
[0010] A plurality of tooling plates are arranged horizontally and in sequence, and are fixedly connected to the top of the chain respectively; each tooling plate is slidably connected to the guide rail.
[0011] Furthermore, it also includes a plurality of guide members fixedly arranged on the top of the frame;
[0012] A plurality of guide members are sequentially spaced apart along the linear conveying direction of the chain, and each of the guide members is provided with a guide groove arranged along the linear conveying direction of the chain;
[0013] The chain is passed through the guide groove.
[0014] Furthermore, the driving device further includes a driving shaft and a reducer;
[0015] The motor is a servo motor, the output shaft of the servo motor is connected to the input shaft of the reducer, and the output shaft of the reducer is connected to the driving shaft;
[0016] The driving shaft is fixedly connected to the first sprocket.
[0017] Furthermore, it also includes loading and unloading components;
[0018] The loading and unloading assembly includes a frame, which is mounted on the outside of the frame, and the chain and the tooling plate are movably installed in the frame;
[0019] A material taking port and a material discharging port are sequentially arranged on the top of the frame along the moving direction of the chain.
[0020] Furthermore, the frame is mounted outside the left or right end of the frame, and when the discharge port is aligned with one of the tooling plates, the take-out port is aligned with the next tooling plate in the moving direction of the chain.
[0021] Furthermore, it also includes a power supply device;
[0022] The power supply device includes a busbar assembly and current collector assemblies having the same number as the tooling plates;
[0023] The busbar assembly is mounted on the top of the frame and is arranged around the outside of the chain. The bottom of each tooling plate is fixedly connected to the collector assembly; and multiple collector assemblies are respectively connected to the busbar assembly in a conductive and sliding manner.
[0024] Furthermore, the busbar assembly includes a plurality of busbars and a plurality of busbar supports;
[0025] A plurality of trolley wire brackets are fixedly connected to the top of the rack, and a plurality of trolley wires are fixedly mounted on the trolley wire brackets in sequence from top to bottom; the plurality of trolley wires are all arranged in parallel with the chain;
[0026] The current collector assembly includes a mounting plate and current collectors having the same number as the busbars;
[0027] The mounting plate is vertically arranged and connected to the bottom of the tooling plate, and a plurality of current collectors are fixedly connected to the mounting plate from top to bottom, so that each current collector is slidably connected to each trolley line in a one-to-one correspondence.
[0028] Furthermore, it also includes connecting pieces having the same number as the tooling plates;
[0029] The connecting member includes a first connecting portion and a second connecting portion connected in sequence, the first connecting portion is provided with a first connecting hole penetrating the upper and lower surfaces thereof, and the second connecting portion is provided with a second connecting hole penetrating the opposite two side surfaces thereof;
[0030] The connecting member is fixedly connected to the chain through the first connecting hole, and the connecting member is detachably fixedly connected to the tooling plate through the second connecting hole.
[0031] Furthermore, the rack is formed by sequentially splicing a plurality of sub-racks.
[0032] The utility model also provides a centrifugal line, which includes the above-mentioned circulating conveying mechanism.
[0033] Compared with the prior art, the circulating conveying mechanism and centrifugal line for a centrifuge provided by the utility model have the following beneficial effects:
[0034] The utility model provides a circulating conveying mechanism and centrifugal line for a centrifuge, wherein the circulating conveying mechanism for the centrifuge comprises a frame, a driving device and a plurality of tooling plates; the first sprocket, the second sprocket and the chain in the driving device cooperate to drive the rotation of the first sprocket through a motor, so that the chain meshed with the first sprocket rotates cyclically; thereby driving the tooling plates fixedly connected to the top of the chain to rotate cyclically on the frame along the guide rail, thereby different from the prior art in which the tooling plates need to be rotated 90 degrees by rotating the rotary cylinder to complete the steering of the tooling plates. The circular conveying mechanism automatically realizes the steering of the tooling plate according to the circular rotation of the chain; the movement and stop of the tooling plate can be directly controlled by the start and stop of the motor, and there is no need to set a blocking cylinder and a buffer element to stop the tooling plate. Moreover, since the tooling plates are arranged in sequence and fixedly connected to the top of the chain, there will be no collision between adjacent tooling plates during the entire working process of the circular conveying mechanism, and the tooling plates will not collide with the buffer elements, which can prevent the centrifuge placed on the tooling plate from being affected by the collision, thereby ensuring the separation effect and service life of the centrifuge. BRIEF DESCRIPTION OF THE DRAWINGS
[0035] Figure 1 This is a schematic diagram of the three-dimensional structure of a circulating conveying mechanism for a centrifuge according to an embodiment of the present utility model;
[0036] Figure 2 yes Figure 1 A magnified schematic diagram of area A in the middle;
[0037] Figure 3 yes Figure 1 A magnified schematic diagram of area B in the middle;
[0038] Figure 4 yes Figure 2 Enlarged schematic diagram of the middle C area;
[0039] Figure 5 This is a front view of a partial structure of a circulating conveying mechanism for a centrifuge according to an embodiment of the present utility model;
[0040] Figure 6 This is a schematic diagram of the three-dimensional structure of a guide member used in a circulating conveying mechanism of a centrifuge according to an embodiment of the present utility model;
[0041] Figure 7 It is a schematic diagram of the three-dimensional structure of a connecting piece used in a circulating conveying mechanism of a centrifuge according to an embodiment of the utility model.
[0042] In the figure, 100 is a circulating conveying mechanism for a centrifuge; 10 is a centrifuge; 1 is a frame; 2 is a driving device; 22 is a second sprocket; 23 is a chain; 3 is a guide rail; 4 is a tool plate; 5 is a guide member; 51 is a guide groove; 6 is a frame; 61 is a material taking port; 62 is a material discharging port; 7 is a power supply device; 71 is a bus bar assembly; 711 is a bus bar; 712 is a bus bar bracket; 72 is a current collector assembly; 721 is a mounting plate; 722 is a current collector; 8 is a connecting member; 81 is a first connecting portion; 810 is a first connecting hole; 82 is a second connecting portion; 820 is a second connecting hole. DETAILED DESCRIPTION
[0043] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0044] like Figure 1 and Figure 2 As shown, a circulating conveying mechanism 100 for a centrifuge according to an embodiment of the present invention comprises a frame 1, a driving device 2, a guide rail 3 and a plurality of tooling plates 4; the driving device 2 comprises a first sprocket, a second sprocket 22, a chain 23 and a motor; the frame 1 comprises a left end and a right end relatively located on both sides, the first sprocket and the second sprocket 22 are horizontally arranged, the first sprocket is arranged at the top of the right end of the frame 1, the second sprocket 22 is arranged at the top of the left end of the frame 1, and the first sprocket and the second sprocket 22 are both rotatably connected to the frame 1; The motor is arranged at the bottom of the frame 1, and the output shaft of the motor is connected to the first sprocket for driving the first sprocket to rotate; the chain 23 is respectively meshed with the first sprocket and the second sprocket 22, and the first sprocket is transmission-connected to the second sprocket 22 through the chain 23; the guide rail 3 is fixedly connected to the top of the frame 1 and is arranged in a parallel ring on the outer periphery of the chain 23; a plurality of tooling plates 4 are horizontally and spaced apart in sequence, and are respectively fixedly connected to the top of the chain 23; each tooling plate 4 is slidably connected to the guide rail 3.
[0045] Based on the above technical solution, the first sprocket, the second sprocket 22 and the chain 23 in the driving device 2 are respectively connected to the first sprocket and the second sprocket 22 via the chain 23, and the first sprocket is connected to the second sprocket 22 through the chain 23, so that when the motor drives the first sprocket to rotate, the second sprocket 22 rotates synchronously under the transmission connection of the chain 23, and the chain 23 rotates in a circular manner; thereby, the plurality of tooling plates 4 respectively fixedly connected to the top of the chain 23 rotate along with the The chain 23 circulates on the guide rail 3 arranged in parallel and in an annular manner around the chain 23 , thereby relying on the drive device 2 to realize the steering and stopping of the tooling plate 4 and the centrifuge 200 on the tooling plate 4 . Moreover, since the plurality of tooling plates 4 are arranged in sequence and at intervals, collisions between the tooling plates 4 will not occur. Therefore, the problem of loosening, deformation, or even disintegration of internal components of the centrifuge 200 caused by collisions between the tooling plates 4 and the centrifuge 200 during steering and starting and stopping is avoided, thereby ensuring the separation effect and service life of the centrifuge 200.
[0046] Furthermore, if Figure 1 and Figure 6 As shown, in order to allow the centrifuge 200 placed on the tooling plate 4 to have sufficient time to complete separation, the chain 23 will have a certain length, that is, in addition to the arc segment that engages with the first sprocket and the second sprocket 22, the chain 23 will have a straight segment of a certain length. In order to ensure the stability of the straight segment during the circular rotation of the chain 23 and avoid the straight segment swinging under force, which causes the arc segment to be separated from the first sprocket and the second sprocket 22, the chain 23 also includes a plurality of guide members 5 fixed to the top of the frame; the plurality of guide members 5 are arranged in sequence at intervals along the linear conveying direction of the chain 23, and each of the guide members 5 is provided with a guide groove 51 arranged along the linear conveying direction of the chain 23; the chain 23 is inserted into the guide groove 51.
[0047] Furthermore, in order to optimize the driving performance of the driving device 2, the driving device 2 also includes a driving shaft and a reducer; the motor is a servo motor, so as to control the moving distance of each tooling plate 4; the output shaft of the servo motor is connected to the input shaft of the reducer, and the output shaft of the reducer is connected to the driving shaft; the driving shaft is fixedly connected to the first sprocket; thereby, the rotation of the first sprocket is driven by the rotation of the driving shaft, and then the circular rotation of the chain 23 is realized.
[0048] Furthermore, if Figure 1 and Figure 3As shown, since the centrifuge 200 placed on the tooling plate 4 needs to be repeatedly fed and discharged during the circulating conveying process of the circulating conveying mechanism 100, in order to standardize the workers' feeding and discharging process, the circulating conveying mechanism 100 also includes a loading and unloading assembly; the loading and unloading assembly includes a frame 6, which is erected on the outside of the frame 1, and the chain 23 and the tooling plate 4 are movably passed through the frame 6; the top of the frame 6 is provided with a feeding port 61 and a discharging port 62 in sequence along the moving direction of the chain 23, so that in the moving direction of the chain 23, the material is first taken to empty the centrifuge 200, and then the material is discharged to allow the centrifuge 200 to perform the next separation work.
[0049] Furthermore, if Figure 1 and Figure 3 As shown, the frame 6 is mounted on the outside of the left or right end of the frame 1, and when the discharge port 62 is aligned with one of the tooling plates, the feeding port 61 is aligned with the next tooling plate in the moving direction of the chain 23, so that the centrifuge 200 on each tooling plate continues to discharge the material after taking the material to start the separation work, thereby avoiding the low work efficiency caused by the existence of idle centrifuges 200.
[0050] Preferably, if Figure 1 and Figure 3 As shown, since the frame 6 is erected on the outside of the left or right end of the frame 1, and when the discharge port 62 is aligned with one of the tooling plates, the material taking port 61 is aligned with the next tooling plate in the moving direction of the chain 23, the material taking port 61 and the discharge port 62 are usually set at the position corresponding to the arc segment of the chain 23. In order to facilitate workers to take and place materials and make the shape of the frame 6 as compatible as possible with the shape of the chain 23, the two sides of the frame 6 away from the frame 1 are set at an angle, so that when workers stand next to the frame 6, they are closer to the chain 23 and the tooling plate 4 fixed on the chain 23 and the centrifuge 200, thereby improving the efficiency of taking and discharging materials.
[0051] Furthermore, if Figure 1 、 Figure 2 、 Figure 4 and Figure 5As shown, in order to improve the stability of power supply and prevent the materials in the centrifuge 200 from being scrapped due to power outage, the circulating conveying mechanism 100 also includes a power supply device 7; the power supply device 7 includes a busbar assembly 71 and the same number of collector assemblies 72 as the tooling plates 4; the busbar assembly 71 is mounted on the top of the frame 1 and is arranged around the outside of the chain 23, and the bottom of each tooling plate 4 is fixedly connected with the collector assembly 72; and multiple collector assemblies 72 are respectively connected to the busbar assembly 71 in an electrically conductive and sliding manner; thereby, each collector assembly 72 is connected to the busbar assembly 71 in an electrically conductive and sliding manner, thereby ensuring that the centrifuge 200 placed on each tooling plate 4 can continue to maintain power supply during the circulating movement.
[0052] Furthermore, if Figure 1 、 Figure 2 、 Figure 4 and Figure 5 As shown, in order to meet various power supply requirements, the busbar assembly 71 includes multiple busbars 711 and multiple busbar brackets 712; multiple busbar brackets 712 are fixedly connected to the top of the rack 1, and multiple busbars 711 are fixedly mounted on the busbar brackets 712 from top to bottom; multiple busbars 711 are arranged in parallel with the chain 23; so that the collector assembly 72 fixedly connected to the bottom of the tooling plate 4 is conductively and slidingly connected to the multiple busbars 711 at the same time; The collector assembly 72 includes a mounting plate 721 and the same number of collectors 722 as the busbars 711; the mounting plate 721 is vertically arranged and connected to the bottom of the tooling plate 4, and multiple collectors 722 are fixedly connected to the mounting plate 721 from top to bottom, and each collector 722 is slidably connected to each busbar 711 one by one, so that each collector 722 is correspondingly conductively slidably connected to each busbar 711 to meet the stable power supply requirements of each centrifuge 200.
[0053] Furthermore, if Figure 1 、 Figure 2 and Figure 7 As shown, it also includes the same number of connecting members 8 as the tooling plates; the connecting member 8 includes a first connecting portion 81 and a second connecting portion 82 connected in sequence, the first connecting portion 81 is provided with a first connecting hole 810 passing through its upper and lower surfaces, and the second connecting portion 82 is provided with a second connecting hole 820 passing through its opposite two side surfaces; the connecting member 8 is fixedly connected to the chain 23 through the first connecting hole 810, and the connecting member 8 is detachably fixedly connected to the tooling plate 4 through the second connecting hole 820, so as to facilitate the individual replacement and adjustment of each tooling plate.
[0054] Furthermore, if Figure 1As shown, in order to facilitate the specification adjustment of the circulating conveying mechanism 100 to increase or decrease the number of centrifuges 200, the rack 1 is formed by sequentially splicing a plurality of sub-racks, rather than making the rack 1 into a whole, so that the size of the rack 1 can be quickly adjusted.
[0055] The present invention also provides a centrifugal line, comprising the above-mentioned circulating conveying mechanism 100.
[0056] The working process of this utility model is as follows: Figure 1 As shown, the servo motor is started, and the first sprocket is driven to rotate through the driving shaft, so that the chain 23 rotates cyclically (as shown in FIG. Figure 1 The centrifuge 200 is rotated in the direction indicated by the mark in the middle), and drives the tooling plates 4 fixedly connected to the chain 23 to circulate, so that the centrifuges 200 on each tooling plate 4 circulate with the tooling plates 4; when the centrifuge 200 moves to the discharge port 62, the worker puts the material to be separated into the centrifuge 200 and starts the centrifuge 200 to start the centrifugal operation; the centrifuge 200 circulates in the centrifuge line to the material taking port 61, the worker shuts down the centrifuge 200 to take the material, and then the centrifuge 200 moves to the discharge port 62, completing one cycle; driven by the cyclic rotation of the chain 23, multiple centrifuges 200 in the centrifuge line all perform this cyclic operation, so that multiple centrifuges 200 in the centrifuge line operate in parallel.
[0057] In summary, the embodiment of the present invention provides a circulating conveying mechanism 100 and a centrifugal line for a centrifuge, wherein the circulating conveying mechanism 100 includes a frame 1, a driving device 2, a guide rail 3 and a plurality of tooling plates 4; the first sprocket, the second sprocket 22 and the chain 23 in the driving device 2 are respectively connected to the first sprocket and the second sprocket 22 via the chain 23, and the first sprocket is connected to the second sprocket 22 through the chain 23, so that when the motor drives the first sprocket to rotate, the second sprocket 22 rotates synchronously under the transmission connection of the chain 23, and the chain 23 is cyclically rotated. Thus, the plurality of tooling plates 4 respectively fixedly connected to the top of the chain 23 are cyclically rotated along with the chain 23 on the guide rail 3 arranged in parallel and ring-shaped around the outer periphery of the chain 23, thereby relying on the driving device 2 to realize the steering and stopping of the tooling plates 4 and the centrifuge 200 on the tooling plates 4. Moreover, since the plurality of tooling plates 4 are arranged in sequence and spaced apart, no collision occurs between the tooling plates 4. Therefore, the problem of loosening, deformation or even disintegration of internal components of the centrifuge 200 caused by collision between the tooling plates 4 and the centrifuge 200 during steering and starting and stopping is avoided, thereby ensuring the separation effect and service life of the centrifuge 200.
[0058] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and replacements can be made without departing from the technical principles of the present invention. These improvements and replacements should also be regarded as the scope of protection of the present invention.
Claims
1. A circulating conveying mechanism for a centrifuge, characterized in that: It includes a frame, a drive device, guide rails and multiple tooling plates; The driving device includes a first sprocket, a second sprocket, a chain and a motor; The frame includes a left end and a right end located at two opposite sides, the first sprocket and the second sprocket are horizontally arranged, the first sprocket is arranged at the top of the right end of the frame, and the second sprocket is arranged at the top of the left end of the frame, and the first sprocket and the second sprocket are both rotatably connected to the frame; the motor is arranged at the bottom of the frame, and the output shaft of the motor is connected to the first sprocket for driving the first sprocket to rotate; the chain is meshed with the first sprocket and the second sprocket respectively, and the first sprocket is transmission-connected to the second sprocket via the chain; The guide rail is fixedly connected to the top of the frame and is arranged in parallel around the outer periphery of the chain; A plurality of tooling plates are arranged horizontally and in sequence, and are fixedly connected to the top of the chain respectively; each tooling plate is slidably connected to the guide rail.
2. The circulating conveying mechanism according to claim 1, characterized in that: It also includes a plurality of guide members fixedly arranged on the top of the frame; A plurality of guide members are sequentially spaced apart along the linear conveying direction of the chain, and each of the guide members is provided with a guide groove arranged along the linear conveying direction of the chain; The chain is passed through the guide groove.
3. The circulating conveying mechanism according to claim 1, characterized in that: The driving device also includes a driving shaft and a speed reducer; The motor is a servo motor, the output shaft of the servo motor is connected to the input shaft of the reducer, and the output shaft of the reducer is connected to the driving shaft; The driving shaft is fixedly connected to the first sprocket.
4. The circulating conveying mechanism according to claim 1, characterized in that: Also includes loading and unloading components; The loading and unloading assembly includes a frame, which is mounted on the outside of the frame, and the chain and the tooling plate are movably installed in the frame; A material taking port and a material discharging port are sequentially arranged on the top of the frame along the moving direction of the chain.
5. The circulating conveying mechanism according to claim 4, characterized in that: The frame is mounted outside the left or right end of the frame, and when the discharge port is aligned with one of the tooling plates, the take-out port is aligned with the next tooling plate in the moving direction of the chain.
6. The circulating conveying mechanism according to claim 1, characterized in that: Also includes a power supply device; The power supply device includes a busbar assembly and current collector assemblies having the same number as the tooling plates; The busbar assembly is mounted on the top of the frame and is arranged around the outside of the chain. The bottom of each tooling plate is fixedly connected to the collector assembly; and multiple collector assemblies are respectively connected to the busbar assembly in a conductive and sliding manner.
7. The circulating conveying mechanism according to claim 6, characterized in that: The busbar assembly includes a plurality of busbars and a plurality of busbar supports; A plurality of trolley wire brackets are fixedly connected to the top of the rack, and a plurality of trolley wires are fixedly mounted on the trolley wire brackets in sequence from top to bottom; the plurality of trolley wires are all arranged in parallel with the chain; The current collector assembly includes a mounting plate and current collectors having the same number as the busbars; The mounting plate is vertically arranged and connected to the bottom of the tooling plate, and a plurality of current collectors are fixedly connected to the mounting plate from top to bottom, so that each current collector is slidably connected to each trolley line in a one-to-one correspondence.
8. The circulating conveying mechanism according to claim 1, characterized in that: Also includes the same number of connecting pieces as the tooling plate; The connecting member includes a first connecting portion and a second connecting portion connected in sequence, the first connecting portion is provided with a first connecting hole penetrating the upper and lower surfaces thereof, and the second connecting portion is provided with a second connecting hole penetrating the opposite two side surfaces thereof; The connecting member is fixedly connected to the chain through the first connecting hole, and the connecting member is detachably fixedly connected to the tooling plate through the second connecting hole.
9. The circulating conveying mechanism according to claim 1, characterized in that: The rack is formed by sequentially splicing a plurality of sub-racks.
10. A centrifugal line, characterized in that: It comprises the circulating conveying mechanism as described in any one of claims 1-9.