Centrifugal machine and using method based on automatic vibration discharging of filter bag

Abstract

The invention relates to the technical field of centrifugal machines, and discloses a centrifugal machine and a using method based on automatic vibration discharging of a filter bag. The centrifugal machine comprises a machine barrel, a fixing table is fixedly installed on the machine barrel, a filtering device is arranged above an inner cavity of the machine barrel, a driving device is arranged below the inner cavity of the machine barrel, and a scraping vibration device is arranged in the middle in the machine barrel; the filtering device comprises a centrifugal barrel and a filtering bag arranged in the centrifugal barrel; the driving device comprises a residue filtering barrel, a servo air cylinder arranged in the residue filtering barrel and a connecting piece arranged between the servo air cylinder and the centrifugal barrel, a driving piece is arranged on the fixing table, and the scraping vibration device comprises a plurality of scraping pieces. By arranging the servo air cylinder, the filter bag is driven to vibrate up and down, so that most impurities on the filter bag are vibrated and unloaded, meanwhile, the surface of the filter bag is scraped and vibrated through the scraping piece, and the problem that the filter bag vibrates once during unloading of a traditional centrifugal machine is solved. And solid particle impurities attached to the surface of the filter bag are difficult to remove.

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: 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; 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 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.

[0004] 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.

[0005] Preferably, the connecting member 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.

[0006] Preferably, the driving member includes a first motor, which is fixedly mounted on a fixed platform, the bottom of the fixed platform is rotatably connected to a main sprocket via a bearing, the bottom of the servo cylinder is fixedly connected to a slave sprocket, chains are mounted on the main sprocket and the slave sprocket, the chain is meshingly 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 the output end of the first motor is fixedly connected to the main sprocket.

[0007] Preferably, a reciprocating screw is rotatably connected to the top axis of the movable sleeve through a bearing, a top plate is provided on the top of the reciprocating screw, the reciprocating screw is rotatably connected to the top plate through the bearing, a sliding seat is provided on the reciprocating screw, the sliding seat is assembled on the reciprocating screw by threads, 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 a rotating shaft through a bearing, the scraper includes 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.

[0008] Preferably, the transmission member includes a worm wheel and a worm, the worm is rotatably connected to the extension rod via a bearing, a movable shaft is rotatably connected to the extension rod via a bearing, the worm wheel is fixedly mounted on the movable shaft, the worm wheel and the worm are meshingly connected, first 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 pulleys, telescopic rods are fixedly connected to both ends of the worm, one of the telescopic rods is connected to the top plate bearing via a bearing, and the other telescopic rod is rotatably connected to the movable sleeve via a bearing.

[0009] Preferably, the transmission member also includes a vertical rod, which is arranged on the annular grid plate and is rotatably connected to the annular grid plate through a bearing, the bottom end of the reciprocating screw rod, the bottom end of the telescopic rod and the top end of the vertical rod are fixedly connected with a first gear, the first gears at the bottom of the telescopic rod and the reciprocating screw rod are arranged in a movable sleeve and are rotatably connected to the movable sleeve through a bearing, a first toothed belt is sleeved on the outer circumference of the three first gears, the first gear is meshed with the first toothed belt, the bottom of the first gear at the bottom of the telescopic rod is fixedly connected with a second gear, and a plurality of second gears are sleeved on the outer circumference of a second toothed belt, the second toothed belt is meshed with the second gear.

[0010] Preferably, the control component includes two second pulleys, a horizontal 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 pulleys are rotatably arranged on the right-angle plate and the horizontal plate through bearings respectively, a second transmission belt is sleeved on the outer circumference of the two second 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 pulleys.

[0011] Preferably, the control member further comprises a cross block, the bottom of the vertical rod is fixedly connected with an elastic rod, the cross block is fixedly installed at the bottom of the elastic rod, a cross groove is opened at the top of one of the second pulleys, and the cross block matches the cross groove.

[0012] Based on the method of using the filter bag for automatic vibration unloading, a centrifuge is used, and the specific steps are as follows: The driving member drives the servo cylinder to rotate, thereby driving the connecting member to rotate, and then driving the centrifugal cylinder and the filter bag connected to the centrifugal cylinder to rotate, thereby centrifugally filtering the liquid in the centrifugal cylinder. When the liquid in the centrifugal cylinder is filtered, the centrifugal cylinder stops rotating, and the connecting member is driven downward by the servo cylinder to connect the control member to the transmission member. The control member drives the transmission member to operate and drives the scraper to rotate. When the connecting member moves downward, the outer surface of the filter bag is separated from the inner wall of the centrifugal cylinder and is in a vertically taut state. The inner surface of the filter bag is shaken and scraped by the up and down movement and rotation of the scraper.

[0013] Beneficial Effects

[0014] Compared with the prior art, the present invention provides a centrifuge and a method for using the filter bag based on automatic oscillation unloading, which has the following beneficial effects: 1. A centrifuge and a method for using the filter bag based on automatic oscillation unloading. The servo cylinder is set to drive the filter bag to vibrate up and down, so as to discharge most of the impurities on the filter bag by oscillation. At the same time, the control part drives the driving part to operate, so that when the filter bag is in a vertically taut state, the scraping part scrapes and vibrates the surface of the filter bag, so as to achieve the effect of cleaning the filter bag, solving the problem that the single filter bag shaking during unloading of the traditional centrifuge makes it difficult to remove the solid particle impurities attached to the surface of the filter bag.

[0015] 2. A centrifuge and a method for using the filter bag based on automatic oscillation unloading. When the centrifugal drum finishes working, the solid particles adhere to the filter bag, and 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 stretched state. After the annular grid plate moves downward, the cross plate overlaps with the cross groove, providing a control member to drive the vertical rod to rotate, thereby driving the transmission member to run, and then driving the scraper member to rotate. The filter bag is scraped by the rotation of the scraper plate on the scraper member. At the same time, through the setting of the reciprocating screw rod, the scraper member moves up and down while rotating, so that the scraper plate scrapes the filter bag and vibrates in multiple positions at the same time, so that the surface of the filter bag can be unloaded more completely. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of a centrifuge of the present invention; Figure 2 This is one of the cross-sectional views of the barrel structure of the present invention; Figure 3 This is the second cross-sectional view of the barrel structure of the present invention; Figure 4 It is a schematic diagram of the structure of the scraping and vibrating device of the present invention; Figure 5 For the present invention Figure 4 Schematic diagram of the structure of the middle A part; Figure 6 For the present invention Figure 4 Schematic diagram of the structure of the middle B part; Figure 7 It is a schematic diagram of the structure of the scraping member of the present invention; Figure 8 For the present invention Figure 7 Schematic diagram of the structure of part C in the middle.

[0017] In the figure: 1, barrel; 2, fixed table; 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, unloading device; 11, discharge pipe; 12, ring plate; 431, fixed barrel; 432, connecting plate; 433, movable sleeve; 434, annular grid plate; 441, first motor; 442, main sprocket; 443, slave sprocket; 444, chain; 445, Protective cover; 13. reciprocating screw; 14. top plate; 15. sliding seat; 16. extension rod; 17. rotating shaft; 511. center plate; 512. scraper plate; 531. worm wheel; 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-angle plate; 524. second transmission belt; 525. second motor; 526. cross block; 527. elastic rod; 528. cross groove. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] As introduced in the background technology, there are deficiencies in the prior art. In order to solve the above technical problems, the present application proposes a centrifuge and a method for using the filter bag based on automatic oscillating unloading.

[0020] Embodiment 1:

[0021] See also Figure 1-Figure 3 A centrifuge comprises a barrel 1, a fixed platform 2 is fixedly mounted on the barrel 1, a filtering device 3 is arranged above the inner cavity of the barrel 1, a driving device 4 is arranged below the inner cavity of the barrel 1, and a scraping and vibrating device 5 is arranged in the middle of the barrel 1; The filter device 3 includes a centrifugal drum 31 and a filter bag 32 disposed in the centrifugal drum 31; 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; 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.

[0022] 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. 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.

[0023] Embodiment 2:

[0024] The difference from the above embodiment 1 is that, see Figure 1-Figure 2For the above barrel, a cover 6 is installed on the top of the barrel 1, a cover-lifting device 7 is fixedly installed between the cover 6 and the barrel 1, a feeding device 8, a cleaning device 9 and a discharging device 10 are fixedly installed on the cover 6, a discharge pipe 11 is fixedly installed on one side of the bottom of the barrel 1, a filter residue barrel 41 is fixedly connected to the barrel 1, the bottom of the centrifugal barrel 31 is sleeved in 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; The connecting member 43 includes a fixed cylinder 431, and 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 cylinder 31 and is fixedly connected to the centrifugal cylinder 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 to the top of the inner cavity of the movable sleeve 433. An annular 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 to the bottom of the centrifugal cylinder 31, and the bottom of the filter bag 32 is fixedly connected to the outer periphery of the annular grid plate 434. Specifically, the driving member 44 drives the centrifugal cylinder 31 to rotate. When the feeding speed is reached, the feeding valve in the feeding device 8 is opened, and the suspension enters the centrifugal cylinder 31 through the feeding device 8 and is evenly distributed on the inner wall of the centrifugal cylinder 31. After the feeding is completed, the feeding valve is closed, and the centrifugal cylinder 31 enters high-speed rotation. Under the action of centrifugal force, the solid phase of the suspension is trapped on the inner wall of the centrifugal cylinder 31, and the liquid phase enters the barrel 1 part through the holes on the inner wall of the centrifugal cylinder 31 and is discharged through the liquid outlet pipe. When the solid phase is dried to the set time, the cleaning valve in the cleaning device 9 is opened, and the cleaning liquid enters the rotary cylinder through the cleaning device 9. The solid phase is cleaned and the cleaning liquid is discharged through the liquid outlet pipe. When the solid phase meets the cleaning requirements, the cleaning valve is closed. When the solid phase is spun dry to the process requirements, the speed of the centrifugal cylinder 31 is reduced to the unloading speed, and the unloading device 10 begins to move slowly downward to perform the unloading action. The solid phase will enter the preset carrier through the filter residue cylinder 41. The servo cylinder 42 drives the filter bag 32 to move downward, and the residual solid phase on the filter bag 32 is shaken off to the carrier. After all the unloading is completed, the centrifugal cylinder 31 enters high-speed rotation, and the filter bag 32 is restored to the inner wall of the centrifugal cylinder 31 under the action of centrifugal force.

[0025] Embodiment three:

[0026] The difference from the above-mentioned embodiment 2 is that, see Figure 3For the above-mentioned driving member 44, the driving member 44 includes a first motor 441, which is fixedly mounted on the fixed platform 2, and a main sprocket 442 is rotatably connected to the bottom of the fixed platform 2 through a bearing, and a slave sprocket 443 is fixedly connected to the bottom of the servo cylinder 42, and a chain 444 is mounted 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, and a protective cover 445 is fixedly connected to the top of the fixed platform 2, and the first motor 441 is placed in the protective cover 445, and the output end of the first motor 441 is fixedly connected to the main sprocket 442; Specifically, the first motor 441 runs to drive the main sprocket 442 to rotate, and through the meshing connection between the main sprocket 442 and the slave sprocket 443 and the chain 444, the slave sprocket 443 is driven to rotate, thereby driving the servo cylinder 42 to rotate.

[0027] Embodiment 4:

[0028] The difference from the above-mentioned embodiment 3 is that, see Figure 7-Figure 8 For the above-mentioned scraper 51, a reciprocating screw 13 is rotatably connected to the top axis of the movable sleeve 433 through a bearing, a top plate 14 is provided at the top of the reciprocating screw 13, and the reciprocating screw 13 is rotatably connected to the top plate 14 through a bearing, a sliding seat 15 is sleeved on the reciprocating screw 13, and the sliding seat 15 is assembled on the reciprocating screw 13 through threads, and a plurality of extension rods 16 are fixedly connected to the outer periphery of the sliding seat 15, and one end of the extension rod 16 is rotatably connected to the rotating shaft 17 through a bearing, and the scraper 51 includes a center plate 511 and a plurality of scraper plates 512 fixedly arranged on the outer periphery of the center plate 511, and the scraper 51 is arranged at both ends of the rotating shaft 17 and the center plate 511 is fixedly connected to the rotating shaft 17; Specifically, the control member 52 drives the transmission to operate, thereby driving the reciprocating screw 13 to rotate, and through the threaded connection between the reciprocating screw 13 and the sliding seat 15, the sliding seat 15 is driven to move up and down. At the same time, through the setting of the transmission member 53, multiple 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 scraper plate 512, the scraper plate 512 squeezes the surface of the filter bag 32 outward during the process from approaching the filter bag 32 to separating from the filter bag 32. When the scraper is separated from the filter bag 32, the filter bag 32 is reset. Such repeated operations make the filter bag 32 vibrate, thereby achieving the effect of shock unloading.

[0029] Embodiment five:

[0030] The difference from the above-mentioned fourth embodiment is that, see Figure 4-Figure 6For 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 to the extension rod 16 through a bearing. A movable shaft 533 is rotatably connected to the extension rod 16 through a bearing. The worm wheel 531 is fixedly installed on the movable shaft 533. The worm wheel 531 and the worm 532 are meshed and connected. First pulleys 534 are fixedly connected on both sides of the outer periphery of the movable shaft 533 and both sides of the outer periphery of the rotating shaft 17. First transmission belts 535 are sleeved on the two first pulleys 534. Telescopic rods 536 are fixedly connected at both ends of the worm 532. One of the telescopic rods 536 is connected to the bearing of the top plate 14 through a bearing, and the other telescopic rod 536 is rotatably connected to the movable sleeve 433 through a bearing. The transmission member 53 also includes a vertical rod 537, which is arranged on the annular grid plate 434 and is rotatably connected to the annular grid plate 434 through a bearing. The bottom end of the reciprocating screw rod 13, the bottom end of the telescopic rod 536 and the top end of the vertical rod 537 are all fixedly connected with a first gear 538. The telescopic rod 536 and the first gear 538 at the bottom of the reciprocating screw rod 13 are all arranged in the movable sleeve 433 and are rotatably connected to the movable sleeve 433 through a bearing. The outer circumference of the three first gears 538 is sleeved with a first toothed belt 539, and the first gear 538 is meshed with the first toothed belt 539. The bottom of the first gear 538 at the bottom of the telescopic rod 536 is fixedly connected with a second gear 5310, and the outer circumference of the plurality of second gears 5310 is sleeved with a second toothed belt 5311, and the second toothed belt 5311 is meshed with the second gear 5310. 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, and the first gear 538 at the bottom end of the reciprocating screw rod 13, the bottom end of the telescopic rod 536 and the top of the vertical rod 537 are meshed and connected with the first toothed belt 539, driving the telescopic rod 536 and the first gear 538 at the bottom end of the reciprocating screw rod 13 to rotate, thereby driving the reciprocating screw rod 13 to rotate, and one of the telescopic rods 536 to rotate, and then driving the second gear 5310 at the bottom of one of the telescopic rods 536 to rotate, and the bottoms of the multiple telescopic rods 536 are all fixedly connected to the second gear 5310. 10, and the meshing connection between the multiple second gears 5310 and the second toothed belt 5311, drive the other telescopic rods 536 to rotate, and then drive the worm 532 to rotate, and through the meshing connection between the worm 532 and the worm wheel 531, drive the worm wheel 531 to rotate, and then drive the movable shaft 533 to rotate, and through the first transmission belt 535 arranged on the first pulleys 534 on both sides of the outer periphery of the movable shaft 533 and the first pulleys 534 on both sides of the outer periphery of the rotating shaft 17, drive the rotating shaft 17 to rotate, thereby driving the center plate 511 and the multiple scraping plates 512 on the outer periphery of the center plate 511 to rotate.

[0031] Embodiment six:

[0032] The difference from the above-mentioned embodiment 5 is that, see Figure 4-Figure 6 , for the above-mentioned control member 52, the control member 52 includes two second pulleys 521, a horizontal plate 522 is fixedly connected to the inner wall of the filter residue cylinder 41, a right-angle plate 523 is fixedly connected to the bottom of the fixed platform 2, the two second pulleys 521 are rotatably arranged on the right-angle plate 523 and the horizontal plate 522 through bearings, a second transmission belt 524 is sleeved on the outer circumference 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; The control member 52 further includes a cross block 526. The bottom of the vertical rod 537 is fixedly connected with an elastic rod 527. The cross block 526 is fixedly installed at the bottom of the elastic rod 527. A cross groove 528 is opened at the top of one of the second pulleys 521. The cross block 526 is consistent with the cross groove 528. Specifically, when the centrifugal drum 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 the specified position, the cross block 526 overlaps with the cross groove 528, and the second motor 525 drives one of the second pulleys 521 to rotate. Through the connection 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 then driving the vertical rod 537 to rotate.

[0033] Embodiment seven:

[0034] See also Figure 1-Figure 8 This embodiment discloses a method for using the filter bag based on automatic vibration unloading, and the specific steps are as follows: 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 liquid in the centrifugal cylinder 31 is filtered, 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 inner surface of the filter bag 32 is shaken and scraped by the up and down movement and rotation of the scraper 51.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that 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 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.

2. A centrifuge according to claim 1, characterized in that: 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.

3. A centrifuge according to claim 2, characterized in that: 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.

4. A centrifuge according to claim 3, characterized in that: The driving component includes a first motor, which is fixedly installed on a fixed platform. The bottom of the fixed platform is rotatably connected to a main sprocket through a bearing. The bottom of the servo cylinder is fixedly connected to a slave sprocket. Chains are installed on the main sprocket and the slave sprocket. The chain is meshed and 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 the output end of the first motor is fixedly connected to the main sprocket.

5. A centrifuge according to claim 4, characterized in that: A reciprocating screw is rotatably connected to the top axis of the movable sleeve via a bearing, a top plate is provided at the top of the reciprocating screw, and the reciprocating screw is rotatably connected to the top plate via a bearing, a sliding seat is sleeved on the reciprocating screw, and the sliding seat is assembled on the reciprocating screw via 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 a rotating shaft via 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.

6. A centrifuge according to claim 5, characterized in that: The transmission member includes a worm wheel and a worm, the worm is rotatably connected to the extension rod through a bearing, a movable shaft is rotatably connected to the extension rod through a bearing, the worm wheel is fixedly mounted on the movable shaft, the worm wheel and the worm are meshingly connected, first 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 pulleys, telescopic rods are fixedly connected to both ends of the worm, one of the telescopic rods is connected to the top plate bearing through a bearing, and the other telescopic rod is rotatably connected to the movable sleeve through a bearing.

7. A centrifuge according to claim 6, characterized in that: The transmission member also includes a vertical rod, which is arranged on the annular grid plate and is rotatably connected to the annular grid plate through a bearing, the bottom end of the reciprocating screw rod, the bottom end of the telescopic rod and the top end of the vertical rod are fixedly connected with a first gear, the first gears at the bottom of the telescopic rod and the reciprocating screw rod are arranged in a movable sleeve and are rotatably connected to the movable sleeve through a bearing, a first toothed belt is sleeved on the outer circumference of the three first gears, the first gear is meshed with the first toothed belt, the bottom of the first gear at the bottom of the telescopic rod is fixedly connected with a second gear, and a plurality of second gears are sleeved on the outer circumference of a second toothed belt, the second toothed belt is meshed with the second gear.

8. A centrifuge according to claim 7, characterized in that: The control component includes two second pulleys, a horizontal 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 pulleys are rotatably arranged on the right-angle plate and the horizontal plate through bearings respectively, a second transmission belt is sleeved on the outer circumference of the two second 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 pulleys.

9. A centrifuge according to claim 8, characterized in that: The control member also includes a cross block, the bottom of the vertical rod is fixedly connected to an elastic rod, the cross block is fixedly installed at the bottom of the elastic rod, one of the second pulleys has a cross groove on the top, and the cross block matches the cross groove.

10. The method for using the filter bag for automatic vibration unloading is characterized by: Using a centrifuge as described in any one of claims 1 to 9, the specific steps are: The driving member drives the servo cylinder to rotate, thereby driving the connecting member to rotate, and then driving the centrifugal cylinder and the filter bag connected to the centrifugal cylinder to rotate, thereby centrifugally filtering the liquid in the centrifugal cylinder. When the liquid in the centrifugal cylinder is filtered, the centrifugal cylinder stops rotating, and the connecting member is driven downward by the servo cylinder to connect the control member to the transmission member. The control member drives the transmission member to operate and drives the scraper to rotate. When the connecting member moves downward, the outer surface of the filter bag is separated from the inner wall of the centrifugal cylinder and is in a vertically taut state. The inner surface of the filter bag is shaken and scraped by the up and down movement and rotation of the scraper.

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