A centrifuge and a method of use based on automatic shock discharging of filter bags

Abstract

The present invention relates to the technical field of centrifuges, and discloses a centrifuge and a usage method based on automatic vibration discharging of filter bags, including a barrel, a fixed platform fixedly installed on the barrel, a filtering device arranged above the inner cavity of the barrel, a driving device arranged below the inner cavity of the barrel, and a scraping and vibrating device arranged in the middle of the barrel; the filtering device includes a centrifugal cylinder and a filter bag arranged in the centrifugal cylinder; the driving device includes a filter residue cylinder, a servo cylinder arranged in the filter residue cylinder, and a connecting piece arranged between the servo cylinder and the centrifugal cylinder, a driving member is arranged on the fixed platform, and the scraping and vibrating device includes a plurality of scraping members. By setting the servo cylinder, the present invention drives the filter bag to vibrate up and down, so as to perform vibration discharging on most of the impurities on the filter bag. At the same time, the surface of the filter bag is scraped and vibrated by the scraping member, solving the problem that the single vibration of the filter bag during discharging of the traditional centrifuge is difficult to remove the solid particle impurities attached to the surface of the filter bag.

Description

Technical Field

[0001] The invention relates to the technical field of centrifuges, in particular to a centrifuge and a method for using the centrifuge based on automatic oscillating unloading of filter bags. 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. When the centrifuge is working, the separated liquid enters the barrel, and the solid particles and debris adhere to the inner wall of the filter bag. The traditional method of unloading debris is to use a cylinder to drive the bottom of the filter bag to move downward, so that the filter bag changes from a state of being attached to the inner wall of the centrifugal barrel to a taut state, thereby shaking off the debris on the surface of the filter bag. However, it is difficult to remove the solid particle impurities attached to the surface of the filter bag by a single shaking of the filter bag. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0004] A centrifuge comprises a barrel, a fixed platform is fixedly mounted on the barrel, a filtering device is arranged above the inner cavity of the barrel, a driving device is arranged below the inner cavity of the barrel, and a scraping and vibrating device is arranged in the middle of the barrel;

[0005] The filtering device comprises a centrifugal cylinder and a filter bag arranged in the centrifugal cylinder;

[0006] The driving device includes a filter residue cylinder, a servo cylinder arranged in the filter residue cylinder, and a connecting piece arranged between the servo cylinder and the centrifugal cylinder. The fixed platform is provided with a driving piece to drive the servo cylinder to operate and drive the centrifugal cylinder and the filter bag to rotate at the same time. At the same time, the servo cylinder drives the bottom of the filter bag to move downward;

[0007] The scraping and vibrating device includes a plurality of scraping members, a control member is arranged on the filter residue cylinder, and a transmission member is arranged between the control member and the scraping member, so that the servo cylinder drives the connecting member to move downward, drives the control member and the transmission member to transmit power, drives the transmission member to operate, and drives the scraping member to move up and down while rotating itself. After the connecting member moves downward, it drives the filter bag to separate from the surface of the centrifugal cylinder and be in a stretched state, and at this time, the scraping member contacts the inner surface of the filter bag.

[0008] Preferably, a cover is installed on the top of the barrel, a cover-lifting device is fixedly installed between the cover and the barrel, a feeding device, a cleaning device and a unloading device are fixedly installed on the cover, a discharge pipe is fixedly installed on one side of the bottom of the barrel, the filter residue barrel is fixedly connected to the barrel, the bottom of the centrifugal barrel is sleeved in the filter residue barrel, a ring plate is fixedly installed on the outer periphery of the centrifugal barrel, and the top of the filter residue barrel is sleeved between the ring plate and the outer wall of the centrifugal barrel.

[0009] Preferably, the connecting member includes a fixing cylinder, a plurality of connecting plates are fixedly connected to the outer periphery of the fixing cylinder, the fixing cylinder is arranged at the bottom of the inner cavity of the centrifugal cylinder and is fixedly connected to the centrifugal cylinder through the connecting plates, the servo cylinder is fixedly installed in the fixing cylinder, a movable sleeve is sleeved on the outer periphery of the top of the fixing cylinder, the output end of the servo cylinder is fixedly connected to the top of the inner cavity of the movable sleeve, a ring-shaped grid plate is fixedly connected to the outer periphery of the movable sleeve, the top of the filter bag is fixedly connected to the bottom of the centrifugal cylinder, and the bottom of the filter bag is fixedly connected to the outer periphery of the ring-shaped grid plate.

[0010] Preferably, the driving member includes a first motor, the first motor is fixedly installed on the fixing table, a main sprocket is rotatably connected to the bottom of the fixing table through a bearing, a driven sprocket is fixedly connected to the bottom of the servo cylinder, a chain is installed on the main sprocket and the driven sprocket, the chain is meshed with the main sprocket and the driven sprocket, a protective cover is fixedly connected to the top of the fixing table, the first motor is placed in the protective cover, and the output end of the first motor is fixedly connected to the main sprocket.

[0011] Preferably, a reciprocating lead screw is rotatably connected to the center of the top of the movable sleeve through a bearing, a top plate is provided at the top of the reciprocating lead screw, the reciprocating lead screw is rotatably connected to the top plate through a bearing, a sliding seat is sleeved on the reciprocating lead screw, the sliding seat is threadedly assembled on the reciprocating lead screw, a plurality of extension rods are fixedly connected to the outer periphery of the sliding seat, one end of each extension rod is rotatably connected to a rotating shaft through a bearing, the scraping member includes a center plate and a plurality of scraping plates fixedly arranged on the outer periphery of the center plate, and the scraping member is arranged at both ends of the rotating shaft and the center plate is fixedly connected to the rotating shaft.

[0012] Preferably, the transmission member includes a worm gear and a worm, the worm is rotatably connected in the extension rod through a bearing, a movable shaft is rotatably connected in the extension rod through a bearing, the worm gear is fixedly installed on the movable shaft, the worm gear and the worm are meshed, first belt pulleys are fixedly connected to both sides of the outer periphery of the movable shaft and both sides of the outer periphery of the rotating shaft, a first transmission belt is sleeved on the two first belt pulleys, telescopic rods are fixedly connected to both ends of the worm, one of the telescopic rods is connected to the top plate through a bearing, and the other telescopic rod is rotatably connected to the movable sleeve through a bearing.

[0013] Preferably, the transmission member further includes a vertical rod, which is arranged on the annular grid plate and rotatably connected to the annular grid plate through a bearing. The bottom ends of the reciprocating lead screw, the telescopic rod, and the top end of the vertical rod are all fixedly connected with a first gear. The first gears at the bottom of the telescopic rod and the reciprocating lead screw are both arranged in the movable sleeve and rotatably connected to the movable sleeve through a bearing. A first toothed belt is sleeved on the outer circumferences of the three first gears, and the first gears are meshed with the first toothed belt. A second gear is fixedly connected to the bottom of the first gear at the bottom of the telescopic rod. A second toothed belt is sleeved on the outer circumferences of the plurality of second gears, and the second toothed belt is meshed with the second gears.

[0014] Preferably, the control member includes two second belt pulleys. A cross plate is fixedly connected to the inner wall of the filter residue cylinder. A right-angle plate is fixedly connected to the bottom of the fixed platform. The two second belt pulleys are respectively rotatably arranged on the right-angle plate and the cross plate through bearings. A second transmission belt is sleeved on the outer circumferences of the two second belt pulleys. A second motor is fixedly connected to the bottom of the fixed platform, and the output end of the second motor is fixedly connected to one of the second belt pulleys.

[0015] Preferably, the control member further includes a cross block. An elastic rod is fixedly connected to the bottom of the vertical rod. The cross block is fixedly installed at the bottom of the elastic rod. A cross groove is formed at the top of one of the second belt pulleys, and the cross block is fitted with the cross groove.

[0016] Based on the use method of automatic shock discharging of filter bags, a centrifuge is applied. The specific steps are as follows:

[0017] The driving member drives the servo cylinder to rotate, thereby driving the connecting member to rotate, and further driving the centrifuge cylinder and the filter bag connected to the centrifuge cylinder to rotate, so as to perform centrifugal filtration on the liquid in the centrifuge cylinder. When the liquid in the centrifuge cylinder is filtered, the centrifuge cylinder stops rotating. The servo cylinder drives the connecting member to move downward, and the control member is connected to the transmission member. The control member drives the transmission member to operate and drives the scraping member to rotate. After the connecting member moves downward, the outer surface of the filter bag is separated from the inner wall of the centrifuge cylinder and is in a tensioned state in the vertical direction. Through the up-and-down movement and self-rotation of the scraping member, the inner surface of the filter bag is shaken and scraped.

[0018] Beneficial effects

[0019] Compared with the prior art, the present invention provides a centrifuge and a use method based on automatic shock discharging of filter bags, having the following beneficial effects:

[0020] 1. A centrifuge and a method of using the same for automatic shock discharging based on a filter bag. By setting a servo cylinder, the filter bag is driven to vibrate up and down, so as to shock-discharge most of the impurities on the filter bag. At the same time, by driving a driving member through a control member, when the filter bag is in a vertically taut state, a scraping member scrapes the surface of the filter bag and vibrates, so as to achieve the effect of cleaning the filter bag, and solve the problem that the single vibration of the filter bag during discharging of the traditional centrifuge is difficult to remove the solid particle impurities attached to the surface of the filter bag.

[0021] 2. A centrifuge and a method of using the same for automatic shock discharging based on a filter bag. When the operation of the centrifuge barrel ends, solid particles adhere to the filter bag. The servo cylinder drives the annular grid plate to move downward, thereby driving the bottom of the filter bag to move downward, so that the filter bag is in a taut state. After the annular grid plate moves downward, the cross plate coincides with the cross groove. By controlling the member to drive the vertical rod to rotate, the transmission member is driven to operate, and then the scraping member is driven to rotate. The filter bag is scraped by the rotation of the scraping plate on the scraping member. At the same time, by setting a reciprocating lead screw, the scraping member moves up and down while rotating, so that the scraping plate vibrates at multiple positions while scraping the filter bag, so that the discharging on the surface of the filter bag is more complete. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic diagram of the overall structure of a centrifuge according to the present invention;

[0023] Figure 2 is a first cross-sectional view of the barrel structure of the present invention;

[0024] Figure 3 is a second cross-sectional view of the barrel structure of the present invention;

[0025] Figure 4 is a schematic diagram of the structure of the scraping and vibrating device of the present invention;

[0026] Figure 5 is of the present invention Figure 4 schematic diagram of the structure of part A;

[0027] Figure 6 is of the present invention Figure 4 schematic diagram of the structure of part B;

[0028] Figure 7 is a schematic diagram of the structure of the scraping member of the present invention;

[0029] Figure 8 is of the present invention Figure 7 schematic diagram of the structure of part C.

[0030] In the figure: 1, barrel; 2, fixed platform; 3, filtering device; 4, driving device; 5, scraping and vibrating device; 31, centrifugal cylinder; 32, filter bag; 41, filter residue cylinder; 42, servo cylinder; 43, connecting piece; 44, driving piece; 51, scraping piece; 52, control piece; 53, transmission piece; 6, machine cover; 7, cover lifting device; 8, feeding device; 9, cleaning device; 10, discharging device; 11, discharging pipe; 12, ring plate; 431, fixed cylinder; 432, connecting plate; 433, movable sleeve; 434, annular grid plate; 441, first motor; 442, main sprocket; 443, driven sprocket; 444, chain; 445, protective cover; 13, reciprocating lead screw; 14, top plate; 15, sliding seat; 16, extension rod; 17, rotating shaft; 511, center plate; 512, scraping plate; 531, worm gear; 532, worm; 533, movable shaft; 534, first pulley; 535, first transmission belt; 536, telescopic rod; 537, vertical rod; 538, first gear; 539, first toothed belt; 5310, second gear; 5311, second toothed belt; 521, second pulley; 522, cross plate; 523, right-angled plate; 524, second transmission belt; 525, second motor; 526, cross block; 527, elastic rod; 528, cross groove. Detailed implementation mode

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0032] As introduced in the background art, there are deficiencies in the prior art. To solve the above technical problems, the present application proposes a centrifuge and a usage method based on automatic vibration discharging of a filter bag.

[0033] Embodiment 1:

[0034] Please refer to Figures 1 - 3 , a centrifuge, including a barrel 1, a fixed platform 2 fixedly installed on the barrel 1, a filtering device 3 arranged above the inner cavity of the barrel 1, a driving device 4 arranged below the inner cavity of the barrel 1, and a scraping and vibrating device 5 arranged in the middle of the barrel 1;

[0035] The filtering device 3 includes a centrifugal cylinder 31 and a filter bag 32 arranged in the centrifugal cylinder 31;

[0036] The driving device 4 includes a filter residue cylinder 41, a servo cylinder 42 disposed in the filter residue cylinder 41, and a connecting member 43 disposed between the servo cylinder 42 and the centrifugal cylinder 31. A driving member 44 is disposed on the fixed platform 2 to drive the servo cylinder 42 to operate, and drive the centrifugal cylinder 31 and the filter bag 32 to rotate simultaneously. At the same time, the servo cylinder 42 drives the bottom of the filter bag 32 to move downward;

[0037] The scraping and vibrating device 5 includes a plurality of scraping members 51. A control member 52 is provided on the filter residue cylinder 41. A transmission member 53 is provided between the control member 52 and the scraping member 51, so that the servo cylinder 42 drives the connecting member 43 to move downward, drives the control member 52 and the transmission member 53 to transmit power, drives the transmission member 53 to operate, and drives the scraping member 51 to move up and down while rotating itself. After the connecting member 43 moves downward, it drives the filter bag 32 to separate from the surface of the centrifugal cylinder 31 and be in a stretched state. At this time, the scraping member 51 contacts the inner surface of the filter bag 32.

[0038] Specifically, the driving member 44 drives the servo cylinder 42 to rotate, thereby driving the connecting member 43 to rotate, and then driving the centrifugal cylinder 31 and the filter bag 32 connected to the centrifugal cylinder 31 to rotate, so as to centrifugally filter the liquid in the centrifugal cylinder 31. When the filtration of the liquid in the centrifugal cylinder 31 is completed, the centrifugal cylinder 31 stops rotating, and the connecting member 43 is driven downward by the servo cylinder 42, and the control member 52 is connected to the transmission member 53. The control member 52 drives the transmission member 53 to operate and drives the scraper 51 to rotate. When the connecting member 43 moves downward, the outer surface of the filter bag 32 is separated from the inner wall of the centrifugal cylinder 31 and is in a vertically taut state. The scraper 51 is moved up and down and rotated to shake and scrape the inner surface of the filter bag 32.

[0039] The servo cylinder 42 is provided to drive the filter bag 32 to vibrate up and down, thereby performing vibration discharge on most of the impurities on the filter bag 32. At the same time, the control member 52 drives the driving member 44 to operate, so that when the filter bag 32 is in a vertically taut state, the scraping member 51 scrapes and vibrates the surface of the filter bag 32, thereby achieving the effect of cleaning the filter bag 32, solving the problem of single vibration of the filter bag 32 during unloading of the traditional centrifuge, making it difficult to remove solid particle impurities attached to the surface of the filter bag 32.

[0040] Embodiment 2:

[0041] The difference from the above embodiment 1 is that, see Figures 1 - 2, for the above-mentioned barrel, a machine cover 6 is installed on the top of the barrel 1, a cover lifting device 7 is fixedly installed between the machine cover 6 and the barrel 1, a feeding device 8, a cleaning device 9 and a discharging device 10 are fixedly installed on the machine cover 6, a discharge pipe 11 is fixedly installed on one side of the bottom of the barrel 1, the filter residue barrel 41 is fixedly connected with the barrel 1, the bottom of the centrifugal barrel 31 is sleeved inside the filter residue barrel 41, a ring plate 12 is fixedly installed on the outer periphery of the centrifugal barrel 31, and the top of the filter residue barrel 41 is sleeved between the ring plate 12 and the outer wall of the centrifugal barrel 31;

[0042] The connecting piece 43 includes a fixed cylinder 431, a plurality of connecting plates 432 are fixedly connected to the outer periphery of the fixed cylinder 431, the fixed cylinder 431 is arranged at the bottom of the inner cavity of the centrifugal barrel 31 and is fixedly connected with the centrifugal barrel 31 through the connecting plates 432, the servo cylinder 42 is fixedly installed in the fixed cylinder 431, a movable sleeve 433 is sleeved on the outer periphery of the top of the fixed cylinder 431, the output end of the servo cylinder 42 is fixedly connected with the top of the inner cavity of the movable sleeve 433, a ring-shaped grid plate 434 is fixedly connected to the outer periphery of the movable sleeve 433, the top of the filter bag 32 is fixedly connected with the bottom of the centrifugal barrel 31, and the bottom of the filter bag 32 is fixedly connected with the outer periphery of the ring-shaped grid plate 434;

[0043] Specifically, the driving part 44 operates to drive the centrifugal barrel 31 to rotate. When the feeding speed is reached, the feeding valve in the feeding device 8 opens, and the suspension enters the inside of the centrifugal barrel 31 through the feeding device 8 and is evenly distributed on the inner wall of the centrifugal barrel 31. After the feeding is completed, the feeding valve closes, and the centrifugal barrel 31 enters high-speed rotation. Under the action of centrifugal force, the solid phase is intercepted on the inner wall of the centrifugal barrel 31, and the liquid phase enters the barrel 1 part through the holes on the inner wall of the centrifugal barrel 31 and is discharged through the liquid discharge pipe. When the solid phase is dried to the set time, the cleaning valve in the cleaning device 9 opens, and the cleaning liquid enters the rotor through the cleaning device 9 to clean the solid phase part. The cleaning liquid is discharged through the liquid discharge pipe. When the solid phase part meets the cleaning requirements, the cleaning valve closes. When the solid phase is dried to the process requirements, the speed of the centrifugal barrel 31 is reduced to the discharging speed, and the discharging device 10 starts to move down slowly to perform the discharging action. The solid phase will enter the preset carrier through the filter residue barrel 41 part. The servo cylinder 42 drives the filter bag 32 to move down to shake off the residual solid phase on the filter bag 32 to the carrier. After all the discharging is completed, the centrifugal barrel 31 enters high-speed rotation, and the filter bag 32 returns to the inner wall of the centrifugal barrel 31 under the action of centrifugal force.

[0044] Embodiment Three:

[0045] The difference from the above-mentioned Embodiment Two is that refer to Figure 3, for the above-mentioned driving member 44, the driving member 44 includes a first motor 441 which is fixedly installed on the fixed table 2. A main sprocket 442 is rotatably connected to the bottom of the fixed table 2 through a bearing. A slave sprocket 443 is fixedly connected to the bottom of the servo cylinder 42. A chain 444 is installed on the main sprocket 442 and the slave sprocket 443, and the chain 444 is meshed and connected with the main sprocket 442 and the slave sprocket 443. A protective cover 445 is fixedly connected to the top of the fixed table 2, and the first motor 441 is placed inside the protective cover 445. The output end of the first motor 441 is fixedly connected to the main sprocket 442;

[0046] Specifically, when the first motor 441 operates, it drives the main sprocket 442 to rotate. Through the meshing connection between the main sprocket 442, the slave sprocket 443 and the chain 444, the slave sprocket 443 is driven to rotate, thereby driving the servo cylinder 42 to rotate.

[0047] Embodiment Four:

[0048] The difference from the above Embodiment Three is as follows. Refer to Figures 7 - 8 , for the above-mentioned scraping member 51, a reciprocating lead screw 13 is rotatably connected to the center of the top of the movable sleeve 433 through a bearing. A top plate 14 is provided at the top end of the reciprocating lead screw 13, and the reciprocating lead screw 13 is rotatably connected to the top plate 14 through a bearing. A sliding seat 15 is sleeved on the reciprocating lead screw 13, and the sliding seat 15 is threadedly assembled on the reciprocating lead screw 13. A plurality of extension rods 16 are fixedly connected to the outer periphery of the sliding seat 15. One end of the extension rod 16 is rotatably connected to a rotating shaft 17 through a bearing. The scraping member 51 includes a central plate 511 and a plurality of scraping plates 512 fixedly arranged on the outer periphery of the central plate 511. The scraping member 51 is arranged at both ends of the rotating shaft 17 and the central plate 511 is fixedly connected to the rotating shaft 17;

[0049] Specifically, the control member 52 drives the transmission to operate, thereby driving the reciprocating lead screw 13 to rotate. Through the threaded connection between the reciprocating lead screw 13 and the sliding seat 15, the sliding seat 15 is driven to move up and down. At the same time, through the arrangement of the transmission member 53, a plurality of scraping members 51 are driven to rotate, so that the scraping members 51 scrape the surface of the filter bag 32 during the up and down movement. At the same time, through the rotation of the scraping plates 512, when the scraping plates 512 move from approaching the filter bag 32 to separating from the filter bag 32, the surface of the filter bag 32 is extruded outwards. When the scraper separates from the filter bag 32, the filter bag 32 resets. By operating repeatedly in this way, the filter bag 32 vibrates, so as to achieve the effect of shock discharging.

[0050] Embodiment Five:

[0051] The difference from the above Embodiment Four is as follows. Refer to Figures 4 - 6, for the above-mentioned transmission member 53, the transmission member 53 includes a worm wheel 531 and a worm 532. The worm 532 is rotatably connected inside the extension rod 16 through a bearing. An activity shaft 533 is rotatably connected inside the extension rod 16 through a bearing. The worm wheel 531 is fixedly installed on the activity shaft 533. The worm wheel 531 and the worm 532 are meshed and connected. On both sides of the outer periphery of the activity shaft 533 and on both sides of the outer periphery of the rotating shaft 17, first belt pulleys 534 are fixedly connected. A first transmission belt 535 is sleeved on the two first belt pulleys 534. Both ends of the worm 532 are fixedly connected with telescopic rods 536. One of the telescopic rods 536 is rotatably connected with the top plate 14 through a bearing, and the other telescopic rod 536 is rotatably connected with the movable sleeve 433 through a bearing;

[0052] The transmission member 53 further includes a vertical rod 537. The vertical rod 537 is arranged on the annular grid plate 434 and is rotatably connected with the annular grid plate 434 through a bearing. At the bottom end of the reciprocating lead screw 13, at the bottom end of the telescopic rod 536, and at the top end of the vertical rod 537, first gears 538 are fixedly connected. The first gears 538 at the bottom of the telescopic rod 536 and the reciprocating lead screw 13 are arranged inside the movable sleeve 433 and are rotatably connected with the movable sleeve 433 through bearings. A first toothed belt 539 is sleeved on the outer periphery of the three first gears 538. The first gears 538 are meshed and connected with the first toothed belt 539. At the bottom of the first gear 538 at the bottom of the telescopic rod 536, a second gear 5310 is fixedly connected. A second toothed belt 5311 is sleeved on the outer periphery of the multiple second gears 5310. The second toothed belt 5311 is meshed and connected with the second gears 5310;

[0053] Specifically, the control member 52 drives the vertical rod 537 to rotate, thereby driving the first gear 538 at the top of the vertical rod 537 to rotate. Through the setting that the first gears 538 at the bottom end of the reciprocating lead screw 13, at the bottom end of the telescopic rod 536, and at the top end of the vertical rod 537 are meshed and connected with the first toothed belt 539, the first gears 538 at the bottom ends of the telescopic rod 536 and the reciprocating lead screw 13 are driven to rotate, thereby driving the reciprocating lead screw 13 to rotate, and one of the telescopic rods 536 to rotate. Furthermore, the second gear 5310 at the bottom of one of the telescopic rods 536 is driven to rotate. Through the setting that multiple second gears 5310 are fixedly connected to the bottom of the telescopic rods 536, and the meshing connection between the multiple second gears 5310 and the second toothed belt 5311, the other telescopic rods 536 are driven to rotate, and further the worm 532 is driven to rotate. Through the meshing connection between the worm 532 and the worm wheel 531, the worm wheel 531 is driven to rotate, and further the activity shaft 533 is driven to rotate. Through the setting that the first transmission belt 535 is sleeved on the first belt pulleys 534 on both sides of the outer periphery of the activity shaft 533 and on the first belt pulleys 534 on both sides of the outer periphery of the rotating shaft 17, the rotating shaft 17 is driven to rotate, thereby driving the central plate 511 and the multiple scraping plates 512 on the outer periphery of the central plate 511 to rotate.

[0054] Embodiment Six:

[0055] The difference from the fifth embodiment above is that, referring to Figures 4 - 6 , for the control member 52 above, the control member 52 includes two second pulleys 521. A cross plate 522 is fixedly connected to the inner wall of the filter residue cylinder 41, and a right-angle plate 523 is fixedly connected to the bottom of the fixed platform 2. The two second pulleys 521 are respectively rotatably arranged on the right-angle plate 523 and the cross plate 522 through bearings. A second transmission belt 524 is sleeved on the outer circumferences of the two second pulleys 521. A second motor 525 is fixedly connected to the bottom of the fixed platform 2, and the output end of the second motor 525 is fixedly connected to one of the second pulleys 521;

[0056] The control member 52 further includes a cross block 526. An elastic rod 527 is fixedly connected to the bottom of the vertical rod 537, and the cross block 526 is fixedly installed at the bottom of the elastic rod 527. A cross groove 528 is formed at the top of one of the second pulleys 521, and the cross block 526 fits with the cross groove 528;

[0057] Specifically, when the centrifugal cylinder 31 stops rotating and moves downward through the servo cylinder 42, the cross block 526 is located at the top of one of the second pulleys 521. When the servo cylinder 42 drives the filter bag 32 to move to a specified position, the cross block 526 coincides with the cross groove 528. The second motor 525 drives one of the second pulleys 521 to rotate. Through the sleeving between the two second pulleys 521 and the second transmission belt 524, the other second pulley 521 is driven to rotate, thereby driving the cross block 526 to rotate, and further driving the vertical rod 537 to rotate.

[0058] Embodiment Seven:

[0059] Referring to Figures 1 - 8 , this embodiment discloses a usage method based on automatic vibration discharging of the filter bag. The specific steps are as follows:

[0060] The driving member 44 drives the servo cylinder 42 to rotate, thereby driving the connecting member 43 to rotate, and further driving the centrifugal cylinder 31 and the filter bag 32 connected to the centrifugal cylinder 31 to rotate, so as to perform centrifugal filtration on the liquid in the centrifugal cylinder 31. When the liquid in the centrifugal cylinder 31 is filtered, the centrifugal cylinder 31 stops rotating. The servo cylinder 42 drives the connecting member 43 to move downward, and makes the control member 52 connected to the transmission member 53. The control member 52 drives the transmission member 53 to operate, and drives the scraping member 51 to rotate. After the connecting member 43 moves downward, the outer surface of the filter bag 32 is separated from the inner wall of the centrifugal cylinder 31 and is in a vertically tightened state. Through the up-and-down movement and self-rotation of the scraping member 51, the inner surface of the filter bag 32 is shaken and scraped.

[0061] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A centrifuge, comprising a barrel, characterized in that: A fixing platform is fixedly installed on the barrel, a filtering device is arranged above the inner cavity of the barrel, a driving device is arranged below the inner cavity of the barrel, and a scraping and vibrating device is arranged in the middle of the barrel; The filtering device comprises a centrifugal cylinder and a filter bag arranged in the centrifugal cylinder; The driving device includes a filter residue cylinder, a servo cylinder arranged in the filter residue cylinder, and a connecting piece arranged between the servo cylinder and the centrifugal cylinder. The fixed platform is provided with a driving piece to drive the servo cylinder to operate and drive the centrifugal cylinder and the filter bag to rotate at the same time. At the same time, the servo cylinder drives the bottom of the filter bag to move downward; The scraping and vibrating device comprises a plurality of scraping members, a control member is arranged on the filter residue cylinder, and a transmission member is arranged between the control member and the scraping member, so that the servo cylinder drives the connecting member to move downward, drives the control member and the transmission member to transmit power, drives the transmission member to operate, and drives the scraping member to move up and down while rotating itself. After the connecting member moves downward, it drives the filter bag to separate from the surface of the centrifugal cylinder and be in a straightened state. At this time, the scraping member contacts the inner surface of the filter bag, and the inner surface of the filter bag is shaken and scraped by the up and down movement and self-rotation of the scraping member. The connecting piece includes a fixed cylinder, a plurality of connecting plates are fixedly connected to the outer periphery of the fixed cylinder, the fixed cylinder is arranged at the bottom of the inner cavity of the centrifugal cylinder and is fixedly connected to the centrifugal cylinder through the connecting plates, the servo cylinder is fixedly installed in the fixed cylinder, a movable sleeve is sleeved on the outer periphery of the top of the fixed cylinder, the output end of the servo cylinder is fixedly connected to the top of the inner cavity of the movable sleeve, an annular grid plate is fixedly connected to the outer periphery of the movable sleeve, the top of the filter bag is fixedly connected to the bottom of the centrifugal cylinder, and the bottom of the filter bag is fixedly connected to the outer periphery of the annular grid plate; The driving member comprises a first motor, which is fixedly mounted on a fixed platform, a main sprocket is rotatably connected to the bottom of the fixed platform through a bearing, a slave sprocket is fixedly connected to the bottom of the servo cylinder, a chain is mounted on the main sprocket and the slave sprocket, the chain is meshedly connected to the main sprocket and the slave sprocket, a protective cover is fixedly connected to the top of the fixed platform, the first motor is placed in the protective cover, and an output end of the first motor is fixedly connected to the main sprocket; A reciprocating screw is rotatably connected to the top axis of the movable sleeve through a bearing, a top plate is provided at the top of the reciprocating screw, the reciprocating screw is rotatably connected to the top plate through the bearing, a sliding seat is sleeved on the reciprocating screw, the sliding seat is assembled on the reciprocating screw through a thread, a plurality of extension rods are fixedly connected to the outer periphery of the sliding seat, one end of the extension rod is rotatably connected to the rotating shaft through a bearing, the scraper comprises a center plate and a plurality of scraper plates fixedly arranged on the outer periphery of the center plate, the scraper is arranged at both ends of the rotating shaft and the center plate is fixedly connected to the rotating shaft; The transmission member includes a worm wheel and a worm. The worm is rotatably connected inside the extension rod through a bearing. An activity shaft is rotatably connected inside the extension rod through a bearing. The worm wheel is fixedly installed on the activity shaft. The worm wheel and the worm are meshed and connected. On both sides of the outer circumference of the activity shaft and on both sides of the outer circumference of the rotating shaft, first belt pulleys are fixedly connected. A first transmission belt is sleeved on the two first belt pulleys. Both ends of the worm are fixedly connected with telescopic rods. One of the telescopic rods is rotationally connected with the top plate through a bearing, and the other telescopic rod is rotationally connected with the movable sleeve through a bearing; The transmission member further includes a vertical rod. The vertical rod is arranged on the annular grid plate and is rotationally connected with the annular grid plate through a bearing. At the bottom of the reciprocating lead screw, at the bottom of the telescopic rod, and at the top of the vertical rod, first gears are fixedly connected. The first gears at the bottom of the telescopic rod and the reciprocating lead screw are both arranged inside the movable sleeve and are rotationally connected with the movable sleeve through bearings. A first toothed belt is sleeved on the outer circumferences of the three first gears. The first gears are meshed and connected with the first toothed belt. At the bottom of the first gear at the bottom of the telescopic rod, a second gear is fixedly connected. A second toothed belt is sleeved on the outer circumferences of the multiple second gears. The second toothed belt is meshed and connected with the second gears.

2. The centrifuge according to claim 1, wherein: A machine cover is installed on the top of the barrel. A cover lifting device is fixedly installed between the machine cover and the barrel. A feeding device, a cleaning device, and a discharging device are fixedly installed on the machine cover. A discharge pipe is fixedly installed on one side of the bottom of the barrel. The filter residue barrel is fixedly connected with the barrel. The bottom of the centrifugal barrel is sleeved inside the filter residue barrel. A ring plate is fixedly installed on the outer circumference of the centrifugal barrel. The top of the filter residue barrel is sleeved between the ring plate and the outer wall of the centrifugal barrel.

3. The centrifuge according to claim 2, characterized in that: The control member includes two second belt pulleys. A cross plate is fixedly connected to the inner wall of the filter residue barrel. A right-angle plate is fixedly connected to the bottom of the fixed platform. The two second belt pulleys are respectively rotatably arranged on the right-angle plate and the cross plate through bearings. A second transmission belt is sleeved on the outer circumferences of the two second belt pulleys. A second motor is fixedly connected to the bottom of the fixed platform. The output end of the second motor is fixedly connected with one of the second belt pulleys.

4. The centrifuge according to claim 3, characterized in that: The control member further includes a cross block. An elastic rod is fixedly connected to the bottom of the vertical rod. The cross block is fixedly installed at the bottom of the elastic rod. A cross groove is formed at the top of one of the second belt pulleys. The cross block fits with the cross groove.

5. The usage method based on automatic vibration discharging of filter bags is characterized in that: Applying a centrifuge according to any one of claims 1-4, the specific steps are as follows: The driving member drives the servo cylinder to rotate, thereby driving the connecting member to rotate, and further driving the centrifugal barrel and the filter bag connected to the centrifugal barrel to rotate, so as to perform centrifugal filtration on the liquid in the centrifugal barrel. When the liquid in the centrifugal barrel is filtered, the centrifugal barrel stops rotating. The servo cylinder drives the connecting member to move downward, and the control member is connected to the transmission member. The control member drives the transmission member to operate and drives the scraping member to rotate. After the connecting member moves downward, the outer surface of the filter bag is separated from the inner wall of the centrifugal barrel and is in a vertically tightened state. Through the up-and-down movement and self-rotation of the scraping member, the inner surface of the filter bag is shaken and scraped.

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