CN110721829A - Filter bag torsional type discharging device in centrifugal machine - Google Patents
Filter bag torsional type discharging device in centrifugal machine Download PDFInfo
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- CN110721829A CN110721829A CN201911125406.1A CN201911125406A CN110721829A CN 110721829 A CN110721829 A CN 110721829A CN 201911125406 A CN201911125406 A CN 201911125406A CN 110721829 A CN110721829 A CN 110721829A
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- filter bag
- inlet channel
- air inlet
- main shaft
- swing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B7/00—Elements of centrifuges
- B04B7/08—Rotary bowls
- B04B7/18—Rotary bowls formed or coated with sieving or filtering elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B1/00—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B15/00—Other accessories for centrifuges
- B04B15/06—Other accessories for centrifuges for cleaning bowls, filters, sieves, inserts, or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B7/00—Elements of centrifuges
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Abstract
The invention discloses a filter bag torsion type discharging device in a centrifuge, which comprises: the rotary drum is fixedly connected to the top of the main shaft, the filter bag is arranged in the rotary drum, an upper bag opening of the filter bag is connected with the top of the rotary drum, a swing cylinder is arranged at the top end of the main shaft, a swing support is arranged on a rotating shaft of the swing cylinder, the swing support is fixed with a lower bag opening of the filter bag, a deflection air inlet channel and a reset air inlet channel are arranged in the main shaft, the deflection air inlet channel and the reset air inlet channel are respectively communicated with two working chambers of the swing cylinder, a rotary joint is arranged at the lower end of the main shaft, and two interfaces of the rotary joint are respectively communicated with the deflection air inlet channel and the reset air inlet channel, so that an air source mechanism for controlling the motion of the swing cylinder can enable the swing cylinder to drive the swing support and the lower bag opening of the. The invention has the advantages of simple structure and low production cost.
Description
Technical Field
The invention relates to a centrifuge, in particular to a filter bag torsion type discharging device in the centrifuge.
Background
The centrifuge is a material separating device commonly used in the chemical industry, the pharmacy, the food industry and other industries. The structure of the centrifuge comprises: the rotary joint is sleeved at the lower end of the main shaft, the main shaft is driven by a motor to rotate, a filter bag and a bag pulling support are arranged in the rotary drum, an upper bag opening of the filter bag is connected with the inner wall of the top of the rotary drum, a lower bag opening of the filter bag is connected with the bag pulling support, the bag pulling support is driven by a discharging device to move up and down relative to the rotary drum, the lower bag opening of the filter bag is synchronously driven to move up and down in a reciprocating mode, the filter bag is made to shake and vibrate, and therefore residual filter cakes remained on the filter bag are shaken off, and regeneration of the filter bag is achieved.
The structure of the discharging device used at present comprises: a sealed piston cavity is arranged in the main shaft, a piston which divides the piston cavity into an upper cavity chamber and a lower cavity chamber is arranged in the piston, a pull rod which can move up and down in the main shaft is fixedly arranged in the piston in a penetrating way, the upper end of the pull rod extends out of the main shaft and is fixed with a bag pulling bracket in the rotary drum, the lower end of the pull rod is arranged in a positioning through hole at the lower end of the main shaft in a penetrating way, so that the pull rod can move up and down relative to the main shaft and cannot rotate relative to the main shaft, a ring cavity is arranged in the piston, a first channel which communicates the ring cavity with the upper cavity chamber is arranged in the piston, a second channel which communicates with the ring cavity is arranged in the pull rod, a third channel which communicates the second channel with one interface in the rotary joint is arranged in the main shaft, and the third channel, the; the main shaft is provided with a lower cavity oil inlet channel which is communicated with the lower cavity and the other interface in the rotary joint.
When the filter bag is unloaded, the oil inlet mechanism leads oil into the upper cavity through the oil inlet channel of the upper cavity, the oil in the upper cavity pushes the piston to move downwards along with the continuous oil entering the upper cavity, the pull rod and the bag pulling support are synchronously driven to move downwards until the bag pulling support pulls the filter bag to be in a collapsing straight shape, then the oil is led into the lower cavity through the oil inlet channel of the lower cavity, the oil in the lower cavity pushes the piston to move upwards along with the continuous oil entering the lower cavity, the pull rod and the bag pulling support are synchronously driven to move upwards until the bag pulling support upwards returns the filter bag to an initial relaxed state, the actions are repeated, the bag pulling support drives the lower bag opening of the filter bag to move up and down in a reciprocating mode, the filter bag is shaken and shaken, and therefore a filter cake layer retained on the filter bag is shaken off.
The discharging device has the following disadvantages: (1) the structure is complex, and the installation and the maintenance are inconvenient; (2) in order to enable the pull rod to stably move in the main shaft, the through hole for the pull rod to move in the main shaft and the pull rod both need to have higher processing precision, so that the production cost is higher; (3) after the pull rod is worn in the using process, the coaxiality of the main shaft, the rotary drum and the bag pulling bracket is influenced, so that the running stability of the equipment is influenced; (4) a space for the bag pulling support to move up and down needs to be reserved in the rotary drum, so that the rotary drum is large in size, and the production cost of an enterprise is high.
Disclosure of Invention
The invention aims to provide a filter bag twisting type discharging device in a centrifuge, which is simple in structure and low in production cost of enterprises.
In order to achieve the purpose, the invention adopts the following technical scheme: a filter bag torsional discharge device in a centrifuge comprises: the rotary drum is fixedly connected to the top of the main shaft, the filter bag is arranged in the rotary drum, an upper bag opening of the filter bag is connected with the top of the rotary drum, a swing cylinder is fixedly arranged at the top end of the main shaft, a swing support is arranged on a rotating shaft of the swing cylinder, the swing support is fixed with a lower bag opening of the filter bag, a deflection air inlet channel and a reset air inlet channel are arranged in the main shaft, the deflection air inlet channel and the reset air inlet channel are respectively communicated with two working chambers of the swing cylinder, a rotary joint is sleeved at the lower end of the main shaft, two interfaces of the rotary joint are respectively communicated with the deflection air inlet channel and the reset air inlet channel, so that an air source mechanism for controlling the motion of the swing cylinder can control the motion of the swing cylinder through the rotary joint, the deflection air inlet channel and the reset air inlet channel, and the swing cylinder can, the filter bag is twisted and deformed, so that residual filter cakes remained on the filter bag are stripped.
Further, the filter bag torsional type discharging device in the centrifuge comprises: the deflection air inlet channel is communicated with one working chamber of the swing cylinder through a first connecting pipe arranged outside the swing cylinder.
Further, the filter bag torsional type discharging device in the centrifuge comprises: the reset air inlet channel is communicated with the other working chamber of the swing cylinder through a second connecting pipe arranged outside the swing cylinder.
Through the implementation of the technical scheme, the invention has the beneficial effects that: (1) the lower bag opening of the filter bag is twisted by the swing cylinder arranged on the main shaft to remove residual filter cakes on the filter bag, so that the structure is simple, and the installation and the maintenance are convenient; (2) the design of the original pull rod is omitted, a high-precision through hole matched with the pull rod does not need to be machined in the main shaft, only an air inlet channel capable of ensuring smooth circulation of air needs to be machined in the main shaft, and the air inlet channel does not need high machining precision, so that the production cost of the main shaft is reduced; (3) the space for the original bag pulling support to move up and down is not required to be reserved in the rotary drum, so that the volume of the rotary drum can be reduced, and the production cost of an enterprise is reduced.
Drawings
Fig. 1 is a schematic structural principle diagram of a filter bag twisting type discharging device in a centrifuge according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, and that the configuration and operation of the particular orientation, and thus, should not be considered as limiting the present invention.
As shown in fig. 1, the filter bag twisting type discharging device in a centrifuge comprises: the rotary drum type dust collector comprises a rotary drum 2 arranged at the top end of a main shaft 1 and a filter bag 3 arranged in the rotary drum 2, wherein a swing cylinder 4 is fixedly arranged at the top end of the main shaft 1, a swing support 5 is arranged on a rotating shaft of the swing cylinder 4, the swing support 5 is fixed with the lower part of the filter bag 3, the upper part of the filter bag 3 is fixed with the inner wall of the top part of the rotary drum 2, a deflection air inlet channel 6 and a reset air inlet channel 7 are arranged in the main shaft 1, the deflection air inlet channel 6 and the reset air inlet channel 7 are respectively communicated with two working chambers of the swing cylinder 4, a rotary joint 10 is sleeved at the lower end of the main shaft 1, two interfaces of the rotary joint 10 are respectively communicated with the deflection air inlet channel 6 and the reset air inlet channel 7, so that an air source mechanism for controlling the motion of the swing cylinder 4 can respectively feed air to the deflection air inlet channel 6 and, thereby controlling the action of the swing cylinder 4, enabling the swing cylinder 4 to drive the swing support 5 and the lower bag opening of the filter bag 3 to rotate relative to the main shaft 1 and the rotary drum 2 through the rotary shaft, and enabling the filter bag 3 to generate torsional deformation, thereby stripping residual filter cakes remained on the filter bag 3; in the present embodiment, the deflected intake passage 6 communicates with one of the working chambers of the oscillating cylinder 4 through a first connecting pipe 8 provided outside the oscillating cylinder 4; the reset air inlet channel 7 is communicated with the other working chamber of the swing cylinder 4 through a second connecting pipe 9 arranged outside the swing cylinder 4, and the structure is simple and the installation and the maintenance are convenient;
the working principle of the invention is as follows:
when the rotary drum filter works, the motor drives the main shaft 1 to rotate through the chain wheel and the chain, the main shaft 2 drives the rotary drum 2, the filter bag 3, the swing cylinder 4 and the swing support 5 to synchronously rotate, when the rotating speed of the rotary drum 2 reaches the charging rotating speed, the material is distributed in the rotary drum 2, filtrate in the filter material can pass through the filter bag 3 and filter holes in the rotary drum 2 under the action of centrifugal force, solid phase in the filter material is intercepted by the filter bag to form a filter cake layer, after the filtrate is filtered, the motor drives the main shaft 1, the rotary drum 2, the filter bag 3, the swing cylinder 4 and the swing support 5 to rotate at low speed, then a scraper device is used for scraping most of filter cakes on the filter bag away from the filter bag, after the filter cakes are scraped by the scraper device, residual filter cakes still exist on the filter bag, then an air source mechanism for controlling the action of the swing cylinder feeds, the rotation shaft of the swing cylinder 4 is controlled to rotate, when the rotation shaft of the swing cylinder 4 rotates, the swing support 5 and the lower portion of the filter bag 3 are synchronously driven to rotate for a certain angle relative to the main shaft 1 and the rotary drum 2, the upper portion of the filter bag 3 is not moved, the lower bag opening of the filter bag 3 rotates, the filter bag 3 generates torsional deformation, residual filter cakes remained on the filter bag are synchronously twisted, and therefore the residual filter cakes remained on the filter bag 3 are loosened and stripped from the filter bag.
The invention has the advantages that: (1) the lower bag opening of the filter bag is twisted by the swing cylinder arranged on the main shaft to remove residual filter cakes on the filter bag, so that the filter bag is simple in structure and convenient to install and maintain; (2) the design of the original pull rod is omitted, a high-precision through hole matched with the pull rod does not need to be machined in the main shaft, only an air inlet channel capable of ensuring smooth circulation of air needs to be machined in the main shaft, and the air inlet channel does not need high machining precision, so that the production cost of the main shaft is reduced; (3) the space for the original bag pulling support to move up and down is not required to be reserved in the rotary drum, so that the volume of the rotary drum can be reduced, and the production cost of an enterprise is reduced.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, but any modifications or equivalent variations made in accordance with the technical spirit of the present invention are within the scope of the present invention as claimed.
Claims (3)
1. A filter bag torsional discharge device in a centrifuge comprises: fixed connection is in the rotary drum at main shaft top to and set up the filter bag in the rotary drum, the last pocket opening of filter bag is connected with the top of rotary drum, its characterized in that: the rotary joint is sleeved at the lower end of the main shaft, and two interfaces of the rotary joint are respectively communicated with the deflection air inlet channel and the reset air inlet channel, so that an air source mechanism for controlling the motion of the swing air cylinder can control the motion of the swing air cylinder through the rotary joint and the deflection air inlet channel and the reset air inlet channel, the swing air cylinder can drive the swing support and the lower bag opening of the filter bag to rotate relative to the main shaft and the rotary drum through the rotary joint, the filter bag generates torsional deformation, and residual filter cakes remained on the filter bag are peeled.
2. The torsional filter bag unloading device of a centrifuge as claimed in claim 1, wherein: the deflection air inlet channel is communicated with one working chamber of the swing cylinder through a first connecting pipe arranged outside the swing cylinder.
3. The torsional filter bag unloading device of a centrifuge as claimed in claim 2, wherein: the reset air inlet channel is communicated with the other working chamber of the swing cylinder through a second connecting pipe arranged outside the swing cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911125406.1A CN110721829A (en) | 2019-11-18 | 2019-11-18 | Filter bag torsional type discharging device in centrifugal machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911125406.1A CN110721829A (en) | 2019-11-18 | 2019-11-18 | Filter bag torsional type discharging device in centrifugal machine |
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| Publication Number | Publication Date |
|---|---|
| CN110721829A true CN110721829A (en) | 2020-01-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911125406.1A Pending CN110721829A (en) | 2019-11-18 | 2019-11-18 | Filter bag torsional type discharging device in centrifugal machine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115253455A (en) * | 2022-09-05 | 2022-11-01 | 南昌大学第一附属医院 | Separator in astragalus polysaccharide extraction process |
| CN117205644A (en) * | 2023-11-07 | 2023-12-12 | 招远市招金金合科技有限公司 | Recovery device for metal in cyanide tailings |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2706733A1 (en) * | 1977-02-17 | 1978-08-24 | Fluormatic Maschinenbau Gmbh | Centrifuge to dewater filter cake - having cloth liner which can be inverted to discharge cake |
| CN105562220A (en) * | 2016-03-02 | 2016-05-11 | 苏州盛天力离心机制造有限公司 | Residual filter cake removing device for scraper type centrifuge |
| CN105562222A (en) * | 2016-03-02 | 2016-05-11 | 苏州盛天力离心机制造有限公司 | Residual filter cake removing device for vertical scraper type centrifuge with top suspension motor |
| 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 |
| CN108284002A (en) * | 2018-01-29 | 2018-07-17 | 苏州星亿机械有限公司 | Pulling bag device for discharging in Pull-bag type centrifugal machine |
| CN109499789A (en) * | 2018-12-24 | 2019-03-22 | 重庆江北机械有限责任公司 | A kind of filtering centrifuge filter bag tension-torsion device |
| CN211303439U (en) * | 2019-11-18 | 2020-08-21 | 江苏同泽过滤科技有限公司 | Filter bag torsion type discharging device in centrifugal machine |
-
2019
- 2019-11-18 CN CN201911125406.1A patent/CN110721829A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2706733A1 (en) * | 1977-02-17 | 1978-08-24 | Fluormatic Maschinenbau Gmbh | Centrifuge to dewater filter cake - having cloth liner which can be inverted to discharge cake |
| CN105562220A (en) * | 2016-03-02 | 2016-05-11 | 苏州盛天力离心机制造有限公司 | Residual filter cake removing device for scraper type centrifuge |
| CN105562222A (en) * | 2016-03-02 | 2016-05-11 | 苏州盛天力离心机制造有限公司 | Residual filter cake removing device for vertical scraper type centrifuge with top suspension motor |
| 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 |
| CN108284002A (en) * | 2018-01-29 | 2018-07-17 | 苏州星亿机械有限公司 | Pulling bag device for discharging in Pull-bag type centrifugal machine |
| CN109499789A (en) * | 2018-12-24 | 2019-03-22 | 重庆江北机械有限责任公司 | A kind of filtering centrifuge filter bag tension-torsion device |
| CN211303439U (en) * | 2019-11-18 | 2020-08-21 | 江苏同泽过滤科技有限公司 | Filter bag torsion type discharging device in centrifugal machine |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115253455A (en) * | 2022-09-05 | 2022-11-01 | 南昌大学第一附属医院 | Separator in astragalus polysaccharide extraction process |
| CN115253455B (en) * | 2022-09-05 | 2023-09-22 | 南昌大学第一附属医院 | Separation device in astragalus polysaccharide extraction process |
| CN117205644A (en) * | 2023-11-07 | 2023-12-12 | 招远市招金金合科技有限公司 | Recovery device for metal in cyanide tailings |
| CN117205644B (en) * | 2023-11-07 | 2024-03-22 | 招远市招金金合科技有限公司 | Recovery device for metal in cyanide tailings |
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