CN112588455B - Disc centrifuge of two-way feeding - Google Patents
Disc centrifuge of two-way feeding Download PDFInfo
- Publication number
- CN112588455B CN112588455B CN202011344008.1A CN202011344008A CN112588455B CN 112588455 B CN112588455 B CN 112588455B CN 202011344008 A CN202011344008 A CN 202011344008A CN 112588455 B CN112588455 B CN 112588455B
- Authority
- CN
- China
- Prior art keywords
- disc
- layer
- centrifuge
- disk
- phase
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
- B04B1/04—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles with inserted separating walls
- B04B1/08—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles with inserted separating walls of conical shape
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B11/00—Feeding, charging, or discharging bowls
- B04B11/04—Periodical feeding or discharging; Control arrangements therefor
Landscapes
- Centrifugal Separators (AREA)
Abstract
The embodiment of the invention provides a bidirectional-feeding disk centrifuge, and relates to the technical field of disk centrifuges. The disc bundle is divided into an upper layer and a lower layer, mixed liquid is conveyed corresponding to the upper feeding hole and the lower feeding hole, and the boundary between the upper disc and the lower disc adopts a layer of non-porous disc as a boundary, so that the upper fluid and the lower fluid are prevented from being mixed, the flow of each disc is uniformly distributed, the separation effect of the multi-layer discs is fully exerted, and the separation efficiency of the disc centrifuge is improved. It comprises the following steps: the feed inlet is divided into an outer layer feed inlet and an inner layer feed inlet; the disc distribution is from top to bottom in turn top layer disc, upper layer disc group, middle disc, lower layer disc group and bottom layer disc; further comprising: a rotary drum, a light phase centripetal pump, a heavy phase centripetal pump, a light phase outlet, a heavy phase outlet and a vertical shaft.
Description
Technical Field
The invention relates to the technical field of disk centrifuges, in particular to a disk centrifuge with bidirectional feeding.
Background
The disk centrifuge utilizes the principle that light and heavy liquid phases and solid phases which have different densities and are not mutually soluble have different settling velocities under the centrifugal action to achieve the purpose of separating and layering or settling solid particles. Due to the characteristics of high automation level, compact structure, small volume, high separation efficiency, strong continuous operation capability and the like, the method is widely applied to the fields of petrochemical industry, food processing, medicine, transportation, bioengineering and the like.
Referring to fig. 1, the conventional disk centrifuge flows into the bottom space of the disk from the feeding pipe 7, the mixed liquid enters the bottom disk 8 through the neutral hole 6, flows upward into the space of the disk 4, the heavy phase is thrown to the outer edge of the drum 6 under the action of centrifugal force, flows through the heavy phase centripetal pump 1 along the heavy phase flow channel 3, and flows out from the heavy phase outlet 10, the light phase flows along the inner diameter direction of the disk 4, flows through the light phase centripetal pump 2 along the light phase flow channel to convert the kinetic energy into pressure potential energy, and finally flows out from the light phase outlet 9.
At present, the disk centrifuge in the prior art adopts a mode of feeding from the bottom of a disk, but the structural form has the problem of uneven flow distribution, and in combination with fig. 1, because a mixed liquid flows in from a neutral hole of a disk 8 at the bottom of the disk, the processing capacity of the disk at the lower layer close to a feed inlet is large, the distributed flow of the disk at the upper layer is small, and the numerical calculation result shows that for a centrifuge containing 186 layers of disks, about 70% of the processing capacity is distributed to 50 layers of disks at the lower layer by about 30%, so that the load of the disk at the lower layer is too heavy, the load of the disk at the upper layer is lighter, and the disk centrifuge is calculated by the principle of uniformly distributing the flow of the disks at each layer during design, so that the actual working process deviates greatly from the design value, the separation effect of the disks is not good for full play, and the separation efficiency of the disk centrifuge is influenced.
Disclosure of Invention
In order to solve the technical problems, the invention provides a bidirectional-feeding disk centrifuge, which divides a disk bundle into an upper layer and a lower layer, conveys mixed liquid corresponding to the upper feeding hole and the lower feeding hole, adopts a layer of non-porous disk at the junction of the upper layer disk and the lower layer disk as a boundary, prevents the mixing of upper fluid and lower fluid, enables each disk to distribute flow uniformly, fully exerts the separation effect of multiple layers of disks and improves the separation efficiency of the disk centrifuge.
A bi-directional feed disk centrifuge comprising: the feed inlet is divided into an outer layer feed inlet and an inner layer feed inlet; the disc distribution is from top to bottom in turn top layer disc, upper layer disc group, middle disc, lower layer disc group and bottom layer disc; further comprising: a rotary drum, a light phase centripetal pump, a heavy phase centripetal pump, a light phase outlet, a heavy phase outlet and a vertical shaft;
wherein the bottom layer disc, the lower layer disc and the upper layer disc are all provided with neutral holes; the middle disc is a non-porous disc; the top layer disc is of a cavity structure, and a neutral hole is formed in the lower surface of the top layer disc; the inner and outer diameters of the bottom layer disc, the lower layer disc, the upper layer disc and the middle disc are the same, and the inner diameter position is fixedly connected with the distributor through a clamping groove structure; the top layer disc covers the four lower discs through the outer diameter; the outer feed port is communicated with the top disc, and realizes the circulation with the gap of the upper disc group through the neutral hole, the inner feed port is communicated with the inside of the distributor, and the fluid is guided into the bottom disc through the flow guide of the inner wall of the rotary drum and flows into the gap of the lower disc group through the neutral hole; the middle disc separates the fluid in the upper and lower discs, the space between the top disc and the rotary drum forms a heavy phase separation channel, the top of the separation channel is communicated with the heavy phase centripetal pump and finally flows out through the heavy phase outlet, the outer wall of the distributor and the inner wall of the top disc form a light phase separation channel, and the top of the separation channel is communicated with the light phase centripetal pump and finally flows out through the light phase outlet.
Preferably, the oil-water mixed liquid enters the centrifuge through the outer layer feed inlet and the inner layer feed inlet respectively, wherein the mixed liquid at the outer layer feed inlet enters the top layer disc cavity along the outer layer flow channel and enters the gap of the upper layer disc through the top layer neutral hole, the mixed liquid at the inner layer feed inlet flows through the bottom layer neutral hole along the inner layer flow channel and enters the gap of the lower layer disc, the mixed liquid entering the inner layer feed inlet and the outer layer feed inlet is separated at the middle disc, the lower layer disc group and the upper layer disc group are communicated through the inner layer feed structure and the outer layer feed structure respectively, and the uniform distribution of the gap flow of the discs inside the centrifuge is realized.
The mixed liquid in the disc gaps is driven by the discs to perform centrifugal motion, a stable oil-water interface is finally formed between the neutral hole and the vicinity of the neutral hole, and heavy phase water flows along the outer diameter direction of the discs and enters the heavy phase centrifugal pump through the heavy phase separation channel.
Preferably, the centripetal pump is of a divergent structure, so that kinetic energy of fluid can be converted into pressure potential energy, and heavy phase water with certain pressure flows out of the centrifuge through a heavy phase outlet.
Wherein, the light phase oil flows along the inner diameter direction of the disc, enters the light phase centripetal pump through the light phase separation channel, and the light phase oil with certain pressure flows out of the centrifuge along the light phase outlet.
Preferably, the top disc is a hollow cavity structure.
According to the bidirectional-feeding disk centrifuge provided by the embodiment of the invention, the upper and lower disk groups are communicated through the inner and outer layered feeding structures, the two disks are separated at the middle disk, and the inner and outer layer feeding amount is adjusted by adjusting the size of the inner and outer layer feeding holes, so that the treatment amount of the upper and lower disks is adjusted. The working load of the lower layer of discs can be reduced, the using efficiency of the upper layer of discs is improved, the discs with different heights are uniformly distributed with flow, and the working efficiency of the discs of the whole centrifuge is improved.
Drawings
FIG. 1 is a schematic diagram of a disk centrifuge of the prior art;
fig. 2 is a schematic structural diagram of a bidirectional-feeding disk centrifuge according to an embodiment of the present invention.
Detailed Description
The following detailed description of the embodiments of the invention refers to the accompanying drawings.
The embodiment of the invention provides a bidirectional-feeding disk type centrifuge which mainly comprises an outer-layer feed inlet 11, an inner-layer feed inlet 12, a top-layer disk 16, an upper-layer disk group 17, a middle-layer disk 18, a lower-layer disk group 19, a bottom-layer disk 20, a rotary drum 25, a light-phase centripetal pump 15, a heavy-phase centripetal pump 14, a light-phase outlet 20, a heavy-phase outlet 13, a vertical shaft 29 and other accessories. The structure of the disk centrifuge is shown in fig. 2.
As shown in fig. 2, a bidirectional feeding disk centrifuge comprises a feed inlet which is divided into an outer feed inlet 11 and an inner feed inlet 12, the disks are distributed from top to bottom as a top disk 16, an upper disk 17, a middle disk 18, a lower disk 19 and a bottom disk 20, wherein the bottom disk, the lower disk and the upper disk are disks with neutral holes 27, the middle disk is a disk without holes, the top disk is a cavity structure, a neutral hole 24 is arranged on the lower surface of the top disk, the inner and outer diameters of the four lower disks are the same, the disks are tightly connected with a distributor 26 through a clamping groove structure at the inner diameter position, the top disk 16 covers the four lower disks through a larger outer diameter, the outer feed inlet 11 is communicated with the top disk 16, the neutral hole 24 realizes the gap communication with the upper disk 17, and the inner feed inlet 12 is communicated with the inside of the distributor 26, the fluid is guided into a bottom disc 20 by the flow guide of the inner wall of a rotary drum 25 and flows into the gap of a lower disc group 19 through a neutral hole 27, the fluid in the upper disc and the lower disc is separated by a middle disc 18, a space part between a top disc 16 and the rotary drum 25 forms a heavy phase separation channel 22, the top of the separation channel is communicated with a heavy phase centripetal pump 14 and finally flows out through a heavy phase outlet 13, the outer wall of a distributor 26 and the diameter of the inner wall of the top disc 16 form a light phase separation channel 23, and the top of the separation channel is communicated with a light phase centripetal pump 15 and finally flows out through a light phase outlet 21.
The flow of the disc centrifuge will be described below with typical oil-water separation conditions. The method comprises the steps of starting the disc centrifuge with bidirectional feeding, injecting tap water into the centrifuge through a water injection port when the disc centrifuge reaches a rated rotating speed, and stopping water injection when a heavy phase outlet overflows water.
The oil-water mixed liquid respectively enters the interior of the centrifuge through the outer layer feed inlet 11 and the inner layer feed inlet 12, wherein the mixed liquid of the outer layer feed inlet 11 enters the cavity of the top layer disc 16 along the outer layer flow channel and enters the gap of the upper layer disc 16 through the top layer neutral hole 24, the mixed liquid of the inner layer feed inlet 12 flows through the bottom layer neutral hole 27 along the inner layer flow channel and enters the gap of the lower layer disc 19, the mixed liquid entering from the inner layer feed inlet and the outer layer feed inlet is separated in the middle disc 18, the lower layer disc group and the upper layer disc group are respectively communicated through the inner layer feed structure and the outer layer feed structure, the uniform distribution of the gap flow of the discs in the centrifuge is realized, the work load of the lower layer disc group 19 is reduced, the utilization rate of the upper layer disc group 17 is improved, and the work efficiency of the disc centrifuge is improved.
The mixed liquid in the disc gap is driven by the disc rotating at high speed to do centrifugal motion, a stable oil-water interface 28 is finally formed near the neutral holes 27 and 24, heavy phase water flows along the outward radial direction of the disc and enters the heavy phase centripetal pump 14 through the heavy phase separation channel 22, the centripetal pump is of a gradually expanding structure, the kinetic energy of the fluid can be converted into pressure potential energy, the pressure of the fluid outlet is improved, and finally the heavy phase water with certain pressure flows out of the centrifuge through the heavy phase outlet 13.
The light phase oil flows along the inner diameter direction of the disc, enters the light phase centripetal pump 15 through the light phase separation channel 23, the conversion of kinetic energy into pressure potential energy is realized in the light phase centripetal pump, and the light phase oil with certain pressure flows out of the centrifuge along the light phase outlet 21.
By adopting a bidirectional feeding mode, through the distribution of the inner and outer layer feeding holes and the diversion of the inner and outer layer feeding space and the uniform distribution of the upper and lower layer disc groups, the processing capacity of discs with different heights in the disc centrifuge is relatively uniform, the workload of the lower layer disc group is reduced, the service efficiency of the upper layer disc group is improved, and the whole machine working efficiency of the disc centrifuge is improved.
According to the bidirectional-feeding disk type centrifuge provided by the embodiment of the invention, the upper and lower disk groups are communicated through the inner and outer layered feeding structures, the two disks are separated at the middle disk, and the inner and outer layer feeding amount is adjusted by adjusting the size of the inner and outer layer feeding ports, so that the treatment capacity of the upper and lower layer disks is adjusted. The working load of the lower layer of discs can be reduced, the using efficiency of the upper layer of discs is improved, the discs with different heights are uniformly distributed with flow, and the working efficiency of the discs of the whole centrifuge is improved.
It will be evident to those skilled in the art that the embodiments of the present invention are not limited to the details of the foregoing illustrative embodiments, and that the embodiments of the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the embodiments being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Any reference sign in a claim should not be construed as limiting the claim concerned. Furthermore, it will be obvious that the term "comprising" does not exclude other elements or steps, and the singular does not exclude the plural. Several units, modules or means recited in the system, apparatus or terminal claims may also be implemented by one and the same unit, module or means in software or hardware. The terms first, second, etc. are used to denote names, but not to denote any particular order.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the embodiments of the present invention and not for limiting, and although the embodiments of the present invention are described in detail with reference to the above preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the embodiments of the present invention without departing from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (6)
1. A two-way feed disk centrifuge, comprising: the feed inlet is divided into an outer layer feed inlet and an inner layer feed inlet; the disc distribution is from top to bottom in turn top layer disc, upper layer disc group, middle disc, lower layer disc group and bottom layer disc; further comprising: the device comprises a rotary drum, a light phase centripetal pump, a heavy phase centripetal pump, a light phase outlet, a heavy phase outlet and a vertical shaft;
wherein, the bottom layer disc, the lower layer disc and the upper layer disc are all provided with neutral holes; the middle disc is a non-porous disc; the top layer disc is of a cavity structure, and a neutral hole is formed in the lower surface of the top layer disc; the inner diameter of the bottom layer disc, the lower layer disc, the upper layer disc and the middle disc is the same in size, and the inner diameter is fixedly connected with the distributor through a clamping groove structure; the top layer disc covers the four lower discs through the outer diameter; the outer feed inlet is communicated with the top disc, and realizes the circulation with the gap of the upper disc group through the neutral hole, the inner feed inlet is communicated with the inside of the distributor, and the fluid is guided into the bottom disc through the flow guide of the inner wall of the distributor and flows into the gap of the lower disc group through the neutral hole; the middle disc separates the fluid in the upper and lower discs, the space between the top disc and the rotary drum forms a heavy phase separation channel, the top of the separation channel is communicated with the heavy phase centripetal pump and finally flows out through the heavy phase outlet, the outer wall of the distributor and the inner wall of the top disc form a light phase separation channel, and the top of the separation channel is communicated with the light phase centripetal pump and finally flows out through the light phase outlet.
2. The disc centrifuge with bidirectional feeding according to claim 1, wherein the oil-water mixture enters the inside of the centrifuge through the outer layer feeding port and the inner layer feeding port, respectively, wherein the mixture at the outer layer feeding port enters the top layer disc cavity along the outer layer flow channel, passes through the top layer neutral hole, enters the gap of the upper layer disc, the mixture at the inner layer feeding port flows through the bottom layer neutral hole along the inner layer flow channel, enters the gap of the lower layer disc, the mixture entering from the inner layer feeding port and the outer layer feeding port is separated by the middle disc, and the inner layer feeding structure and the outer layer feeding structure are respectively communicated with the lower layer disc set and the upper layer disc set, so as to realize uniform distribution of the gap flow of the discs inside the centrifuge.
3. The bidirectional feed disk centrifuge of claim 2, wherein the mixed liquid in the disk gaps is driven by the disks to perform a centrifugal motion, and finally a stable oil-water interface is formed between the neutral holes and the vicinity thereof, and the heavy-phase water flows along the outward radial direction of the disks and enters the heavy-phase centrifugal pump through the heavy-phase separation channel.
4. The bidirectional feed disc centrifuge of claim 3, wherein the centrifugal pump is a divergent structure capable of converting fluid kinetic energy into pressure potential energy, and the heavy phase water with a certain pressure flows out of the centrifuge through the heavy phase outlet.
5. The bidirectional feed disk centrifuge of claim 4, wherein the light-phase oil flows along the inner diameter of the disk, enters the light-phase centrifugal pump through the light-phase separation channel, and exits the centrifuge along the light-phase outlet.
6. The bidirectional feed disk centrifuge of claim 5, wherein the top disk is a hollow cavity structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011344008.1A CN112588455B (en) | 2020-11-26 | 2020-11-26 | Disc centrifuge of two-way feeding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011344008.1A CN112588455B (en) | 2020-11-26 | 2020-11-26 | Disc centrifuge of two-way feeding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112588455A CN112588455A (en) | 2021-04-02 |
| CN112588455B true CN112588455B (en) | 2022-07-26 |
Family
ID=75184621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011344008.1A Active CN112588455B (en) | 2020-11-26 | 2020-11-26 | Disc centrifuge of two-way feeding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112588455B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116748023B (en) * | 2023-08-19 | 2023-11-07 | 太原众特电气技术有限公司 | Centrifugal separator for cleaning oil |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB726596A (en) * | 1952-05-14 | 1955-03-23 | Separator Ab | Improvements in or relating to centrifuges for separating, sludge containing liquids |
| CN201150880Y (en) * | 2008-05-21 | 2008-11-19 | 温岭市华益分离设备厂 | Efficient disk type clarifier |
| CN109304259A (en) * | 2018-09-11 | 2019-02-05 | 南京中船绿洲机器有限公司 | A kind of disk centrifuge sealed feeder unit |
| CN109847949B (en) * | 2019-04-18 | 2021-05-11 | 沈阳工业大学 | Convertible runner structure of multi-functional dish formula separating centrifuge of convertible multithread way |
| CN111485972A (en) * | 2020-03-17 | 2020-08-04 | 南京中船绿洲机器有限公司 | Self-spinning disc type centrifugal filter |
-
2020
- 2020-11-26 CN CN202011344008.1A patent/CN112588455B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN112588455A (en) | 2021-04-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU698539B2 (en) | Centrifugal separator and method | |
| CN203380009U (en) | Vertical type three-phase combined centrifugal machine | |
| JP5108090B2 (en) | Method and apparatus for purifying fluid in a centrifuge | |
| KR102087240B1 (en) | Centrifuge with disk stack | |
| CN112387013B (en) | Self-adaptive multiphase integrated separation device and method | |
| CN109701297B (en) | Supergravity extraction separation coupling device and application | |
| CN112588455B (en) | Disc centrifuge of two-way feeding | |
| JP2014522719A (en) | Device for filtering liquid | |
| US4042172A (en) | Bowl centrifuge rotor | |
| CN104971673B (en) | A kind of short contact Cyclonic reactor of the heterogeneous hybrid reaction isolation integral of liquid liquid | |
| US20140378291A1 (en) | Method for Separating a Multiphase Mixture | |
| CN104667582B (en) | A kind of hypergravity oily-water seperating equipment | |
| US9126207B2 (en) | Separator for separating a multiphase mixture | |
| AU2011244532A1 (en) | A separator | |
| CN100340348C (en) | Centrifuger of two-phase ternary system separating | |
| CN1090524A (en) | A kind of centrifugal separator | |
| CN211275038U (en) | Disc type separator | |
| CN109762081B (en) | Continuous coagulation method of fluorine-containing polymer emulsion and pipeline type emulsifying machine | |
| KR20190015921A (en) | Controlled Hydrodynamic Disk Separator | |
| CN1094795C (en) | Method and device for cleaning of centrifugal separator | |
| KR101137557B1 (en) | A disc typed cetrifugal separator with 3 and 4 phase separation funtion | |
| CN113245072A (en) | One-way heart dish centrifuge and centrifugal equipment that possess spiral acceleration | |
| CN112916216A (en) | Disc type separator | |
| US5897484A (en) | Centrifugal separator to free a liquid from bath lighter particles and heavier particles | |
| CN112774879B (en) | Automatic vertical heterogeneous integration cyclone separation device of paraffin removal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |