CN105562220A - Residual filter cake removing device for scraper type centrifuge - Google Patents

Residual filter cake removing device for scraper type centrifuge Download PDF

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Publication number
CN105562220A
CN105562220A CN201610115448.7A CN201610115448A CN105562220A CN 105562220 A CN105562220 A CN 105562220A CN 201610115448 A CN201610115448 A CN 201610115448A CN 105562220 A CN105562220 A CN 105562220A
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CN
China
Prior art keywords
centrifuge
filter cake
ring flange
removing device
rotary
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CN201610115448.7A
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Chinese (zh)
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CN105562220B (en
Inventor
陈志才
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SUZHOU SHENGTIANLI CENTRIFUGE MANUFACTURING Co Ltd
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SUZHOU SHENGTIANLI CENTRIFUGE MANUFACTURING Co Ltd
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Publication of CN105562220A publication Critical patent/CN105562220A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B04CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04BCENTRIFUGES
    • B04B11/00Feeding, charging, or discharging bowls
    • B04B11/04Periodical feeding or discharging; Control arrangements therefor

Abstract

The invention relates to a residual filter cake removing device for a scraper type centrifuge. The residual filter cake removing device comprises a rotary flange plate arranged at the bottom in a rotary drum of the centrifuge, wherein the rotary flange plate is jointed with the bottom of the rotary drum of the centrifuge, and the outer edge of the rotary flange plate is connected with the bottom of a filter bag in the centrifuge; an inner shaft is arranged in a main shaft of the centrifuge, the inner shaft and the main shaft are relatively independent, one end of the inner shaft is connected with the rotary flange plate, and the other end of the inner shaft is connected with a driving device which can drive the inner shaft to rotate by a certain angle. Residual filter cakes on filter cloth are removed in a torsional manner, so that the filter cloth not only is separated from the inner wall of a barrel body of the rotary drum but also generates puckers to enable the filter cakes to come off, so that the residual filter cakes on the filter cloth can be removed, the use effect is quite obvious, and the residual filter cake removing device is better than a pull bag type residual filter cake removing device. In addition, the residual filter cake removing device is extensive in application scope, and can be suitable for most of vertical scraper centrifuges and horizontal scraper centrifuges.

Description

The remaining filter cake scavenge unit of scraper type centrifuge
Technical field
The present invention relates to the technical field of centrifuge, refer to a kind of remaining filter cake scavenge unit of scraper type centrifuge especially.
Background technology
Scraper discharging formula centrifuge, according to the installation direction of centrifuge principal axis, can be divided into vertical unloading under scraper centrifuge (main shaft is perpendicular to ground) and horizontal type scraper centrifuger (main axis parallel is in ground).Due to the existence in gap between wing and filter bag (or filter screen), so no matter select which kind of scraper discharging formula centrifuge, the problem that remaining filter cake affects filter effect exists all the time.
For vertical scraper centrifugal machine, there is a kind of pulling bag device in recent years, utilize the cylinder or the oil cylinder that are arranged on main shaft bottom or upper end, the piston of cylinder or oil cylinder, drive jockey, drive filter bag lower end to carry out axially-movable, thus realize the discharging of remaining filter cake.But this device is realized by axially-movable, require the rotary drum inner chamber of centrifuge, there is certain axially-movable space, so the scope of application is narrower.
Particularly horizontal type scraper centrifuger, since external birth, operations at full speed always, high speed scraper, format high throughput, advantage that output is high, at starch, the industry acquisitions such as chlor-alkali widely use.But because remaining filter cake affects the problem of filter effect, up to the present, also there is no suitable method and apparatus, remove remaining filter cake, so limit the use of horizontal type scraper centrifuger.
Summary of the invention
Technical problem to be solved by this invention is: provide one to be applicable to vertical scraper centrifugal machine and horizontal type scraper centrifuger, effectively can remove the remaining filter cake scavenge unit of the scraper type centrifuge of remaining filter cake.
For solving the problem, the technical solution used in the present invention is: the remaining filter cake scavenge unit of scraper type centrifuge, comprise the rotary flange dish being arranged on bowl inner bottom part, fit bottom rotary flange dish and bowl, and the outer rim of rotary flange dish is connected with bottom the filter bag of centrifuge inside, centrifuge principal axis inside is provided with interior axle, relatively independent between interior axle and main shaft, one end of interior axle is connected with rotary flange dish, and the other end of interior axle is connected with the drive unit that interior axle can be driven to turn an angle.
Preferably, the structure of described drive unit is: comprise the braked wheel being fixed on interior shaft end, Connection Block is had at the end winding support of centrifuge principal axis, Connection Block is positioned at the outside of braked wheel and coaxially arranges with braked wheel, Connection Block center is provided with in contrast independently swiveling wheel, swiveling wheel is provided with the first ring flange and the second ring flange that are parallel to each other, first ring flange is provided with two semicircle brake rings, described braked wheel is cover type structure, two semicircle brake rings are positioned at the cover type region of braked wheel, one end of two semicircle brake rings is connected with the first ring flange by steady pin, the other end of two semicircle brake rings is connected by spring, and homalocephalus axle is provided with in end, second ring flange is provided with brake cylinder, the motion bar of brake cylinder is connected with homalocephalus axle by brake connecting plate, Connection Block is provided with rotation cylinder, the motion bar of rotation cylinder is connected with the second ring flange by being rotationally connected plate.
The invention has the beneficial effects as follows:
1, the mode that employing is reversed removes the remaining filter cake on filter cloth, makes filter cloth not only depart from the inwall of rotary drum stack shell, and produces fold, filter cake is come off, thus the remaining filter cake on removing filter cloth, result of use not only clearly, and is better than the remaining filter cake scavenge unit of bag-pulling type.
2, only need the installing space of the thin layer of plane at the bottom of rotary drum, do not need the space of the axis taken in rotary drum, so the scope of application is more extensive, be applicable to most of vertical scraper centrifugal machine and horizontal type scraper centrifuger.
3, the device driving interior axle to rotate due to it is separated with main shaft, when main axis, drive unit is actionless, so security reliability is more increased, structure is more simple, install and maintenance is comparatively simple, be easy to promote the use of, can obtain the welcome of client.
Accompanying drawing explanation
Fig. 1 is the structural representation that the present invention uses in horizontal type scraper centrifuger;
Fig. 2 is the structural representation that the present invention uses in vertical scraper centrifugal machine;
Fig. 3 is the structure for amplifying schematic diagram of drive unit part in Fig. 1;
Fig. 4 is the sectional structure schematic diagram in A-A direction in Fig. 3;
Fig. 5 is structural representation when filter bag is in twisted state in Fig. 1;
Fig. 6 is principle schematic of the present invention;
In figure: 1, rotary drum, 2, rotary flange dish, 3, filter bag, 4, main shaft, 5, interior axle, 6, Connection Block, 7, braked wheel, 8, swiveling wheel, the 9, first ring flange, 10, the second ring flange, 11, semicircle brake ring, 12, steady pin, 13, spring, 14, homalocephalus axle, 15, brake cylinder, 16, brake connecting plate, and 17, rotation cylinder, 18, be rotationally connected plate.
Detailed description of the invention
Be described in further detail below by the remaining filter cake scavenge unit of specific embodiment to a kind of scraper type centrifuge of the present invention.
As shown in Figure 1, be horizontal type scraper centrifuger, as shown in Figure 2, be vertical scraper centrifugal machine, remaining filter cake scavenge unit of the present invention is all applicable to above-mentioned two kinds of scraper centrifugal machines, and structure is similar in above-mentioned two kinds of scraper centrifugal machines.
Below for horizontal type scraper centrifuger:
As shown in Figure 1, the remaining filter cake scavenge unit of scraper type centrifuge, comprise the rotary flange dish 2 being arranged on bowl 1 inner bottom part, fit bottom rotary flange dish 2 and bowl 1, and the outer rim of rotary flange dish 2 is connected with bottom the filter bag 3 of centrifuge inside, centrifuge principal axis 4 inside is provided with interior axle 5, relatively independent between interior axle 5 and main shaft 4, one end of interior axle 5 is connected with rotary flange dish 2, and the other end of interior axle 5 is connected with the drive unit that interior axle 5 can be driven to turn an angle.
Preferably, as Fig. 3, shown in Fig. 4, the structure of described drive unit is: comprise the braked wheel 7 being fixed on interior axle 5 end, Connection Block 6 is had at the end winding support of centrifuge principal axis 4, Connection Block 6 is positioned at the outside of braked wheel 7 and coaxially arranges with braked wheel 7, Connection Block 6 center is provided with in contrast independently swiveling wheel 8, swiveling wheel 8 is provided with the first ring flange 9 and the second ring flange 10 be parallel to each other, first ring flange 9 is provided with two semicircle brake rings 11, described braked wheel 7 is cover type structure, two semicircle brake rings 11 are positioned at the cover type region of braked wheel 7, one end of two semicircle brake rings 11 is connected with the first ring flange 9 by steady pin 12, the other end of two semicircle brake rings 11 is connected by spring 13, and homalocephalus axle 14 is provided with in end, second ring flange 10 is provided with brake cylinder 15, the motion bar of brake cylinder 15 is connected with homalocephalus axle 14 by brake connecting plate 16, Connection Block 6 is provided with rotation cylinder 17, the motion bar of rotation cylinder 17 is connected with the second ring flange 10 by being rotationally connected plate 18.When reality uses, the structure of drive unit can adopt other structures, as adopted PLC control motor or cylinder to drive interior axle 5 to turn an angle, all belongs to protection category of the present invention.
Operation principle of the present invention is: when remaining filter cake removed by needs, first the belt pulley transfixion of main shaft 4 is kept, in being driven by drive unit, axle 5 is at main shaft 4 inner rotation certain angle, thus rotary flange dish 2 is turned an angle, when rotary flange dish 2 turns an angle, filter bag 3 is pulled away from rotary drum 1 inwall, and in twisted state, now state as shown in Figure 5, produce fold, remaining filter cake just comes off from filter bag 3, achieves the removing work of remaining filter cake.
As shown in Figure 6, principle of the present invention is: A point is filter bag 3 right-hand member baseplane a---point on the circumference that the circumference of outer end and filter bag 3 stack shell right-hand member cross.B point is filter bag 3 right-hand member baseplane, a point on inner circumference, and B point is positioned on rotary flange dish 2 simultaneously, the line AB of A point and B point, overlaps with the diameter line oA crossing B point.The centre point of rotary drum 1 baseplane is o point.As rotary flange dish 2 dextrorotation gyration a, B point arrives D point with rotary flange dish 2 also anglec of rotation a, B point, and A point is pulled away from rotary drum 1 inwall, arrives E point, makes filter bag 3 become inclination, have a certain degree with rotary drum 1 stack shell.In like manner, the point that outer end, filter bag 3 baseplane is circumferentially all, is pulled away from rotary drum 1 inwall, and filter bag 3 stack shell becomes inclination, and the taper seat of inclination also becomes fold (oblique fold).Whole filter bag 3 becomes truncated cone-shaped by cylindrical.The remaining filter cake be attached on filter bag 3 is also shaken off thereupon.
In the present embodiment, the operation principle of drive unit is: drive homalocephalus axle 14 to rotate by brake cylinder 15, thus strut two semicircle brake rings 11, the external profile diameter of two semicircle brake rings 11 is expanded, and with braked wheel 7 swelling, then rotation cylinder 17 drives the second ring flange 10 to rotate, thus driven rotary wheel 8 rotates, even if braked wheel 7 rotates, in driving, axle 5 turns an angle.
The above embodiments are the principle of illustrative the invention and effect thereof only, and the embodiment that part is used, but not for limiting the present invention; It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise of the invention, can also make some distortion and improvement, these all belong to protection scope of the present invention.

Claims (2)

1. the remaining filter cake scavenge unit of scraper type centrifuge, it is characterized in that: comprise the rotary flange dish being arranged on bowl inner bottom part, fit bottom rotary flange dish and bowl, and the outer rim of rotary flange dish is connected with bottom the filter bag of centrifuge inside, centrifuge principal axis inside is provided with interior axle, relatively independent between interior axle and main shaft, one end of interior axle is connected with rotary flange dish, and the other end of interior axle is connected with the drive unit that interior axle can be driven to turn an angle.
2. the remaining filter cake scavenge unit of scraper type centrifuge according to claim 1, it is characterized in that: the structure of described drive unit is: comprise the braked wheel being fixed on interior shaft end, Connection Block is had at the end winding support of centrifuge principal axis, Connection Block is positioned at the outside of braked wheel and coaxially arranges with braked wheel, Connection Block center is provided with in contrast independently swiveling wheel, swiveling wheel is provided with the first ring flange and the second ring flange that are parallel to each other, first ring flange is provided with two semicircle brake rings, described braked wheel is cover type structure, two semicircle brake rings are positioned at the cover type region of braked wheel, one end of two semicircle brake rings is connected with the first ring flange by steady pin, the other end of two semicircle brake rings is connected by spring, and homalocephalus axle is provided with in end, second ring flange is provided with brake cylinder, the motion bar of brake cylinder is connected with homalocephalus axle by brake connecting plate, Connection Block is provided with rotation cylinder, the motion bar of rotation cylinder is connected with the second ring flange by being rotationally connected plate.
CN201610115448.7A 2016-03-02 2016-03-02 The remaining filter cake remove device of scraper type centrifuge Active CN105562220B (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106423593A (en) * 2016-09-26 2017-02-22 江苏华大离心机制造有限公司 Removing method of residual filter cakes in horizontal scraper unloading centrifuge and filter cloth driving mechanism
CN107297283A (en) * 2017-06-29 2017-10-27 苏州盛天力离心机制造有限公司 A kind of pulling bag drive device for rotating bag-pulling centrifuge
CN110721829A (en) * 2019-11-18 2020-01-24 江苏同泽过滤科技有限公司 Filter bag torsional type discharging device in centrifugal machine

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3771715A (en) * 1970-11-24 1973-11-13 Escher Wyss Ag Self-cleaning centrifugal separator
EP0144904A2 (en) * 1983-12-05 1985-06-19 Krauss-Maffei Aktiengesellschaft Sealing for the bearing of a centrifuge
EP0182902B1 (en) * 1984-06-14 1987-09-30 Alfa-Laval Ab Centrifugal separator
CN1237118A (en) * 1996-11-08 1999-12-01 海因科尔工业离心机有限公司 Centrifuger with inside-out flow filter
EP0995496A2 (en) * 1998-10-20 2000-04-26 Fleetguard, Inc. A centrifugal separator
CN2576347Y (en) * 2002-09-27 2003-10-01 北京化工大学 Bag-turning type filtering centrifuge
EP1181102B1 (en) * 1999-05-14 2003-12-17 Westfalia Separator AG Centrifuge and method for operating the same
CN202387592U (en) * 2011-11-29 2012-08-22 重庆江北机械有限责任公司 Cleaning device for residual filter cake layer of horizontal type scraper centrifugal machine
CN104759356A (en) * 2015-04-30 2015-07-08 江苏赛德力制药机械制造有限公司 Residual filter cake removing device of horizontal type scraper centrifugal machine
CN205570561U (en) * 2016-03-02 2016-09-14 苏州盛天力离心机制造有限公司 Scraper formula centrifuge's remaining filter cake clearing device

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3771715A (en) * 1970-11-24 1973-11-13 Escher Wyss Ag Self-cleaning centrifugal separator
EP0144904A2 (en) * 1983-12-05 1985-06-19 Krauss-Maffei Aktiengesellschaft Sealing for the bearing of a centrifuge
EP0182902B1 (en) * 1984-06-14 1987-09-30 Alfa-Laval Ab Centrifugal separator
CN1237118A (en) * 1996-11-08 1999-12-01 海因科尔工业离心机有限公司 Centrifuger with inside-out flow filter
KR100339774B1 (en) * 1996-11-08 2002-06-05 누락 Centrifuge with an Inside-Out flow Filter
EP0995496A2 (en) * 1998-10-20 2000-04-26 Fleetguard, Inc. A centrifugal separator
EP1181102B1 (en) * 1999-05-14 2003-12-17 Westfalia Separator AG Centrifuge and method for operating the same
CN2576347Y (en) * 2002-09-27 2003-10-01 北京化工大学 Bag-turning type filtering centrifuge
CN202387592U (en) * 2011-11-29 2012-08-22 重庆江北机械有限责任公司 Cleaning device for residual filter cake layer of horizontal type scraper centrifugal machine
CN104759356A (en) * 2015-04-30 2015-07-08 江苏赛德力制药机械制造有限公司 Residual filter cake removing device of horizontal type scraper centrifugal machine
CN205570561U (en) * 2016-03-02 2016-09-14 苏州盛天力离心机制造有限公司 Scraper formula centrifuge's remaining filter cake clearing device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106423593A (en) * 2016-09-26 2017-02-22 江苏华大离心机制造有限公司 Removing method of residual filter cakes in horizontal scraper unloading centrifuge and filter cloth driving mechanism
CN107297283A (en) * 2017-06-29 2017-10-27 苏州盛天力离心机制造有限公司 A kind of pulling bag drive device for rotating bag-pulling centrifuge
CN110721829A (en) * 2019-11-18 2020-01-24 江苏同泽过滤科技有限公司 Filter bag torsional type discharging device in centrifugal machine

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