CN110465112B - Annular gap type centrifugal extractor capable of treating feed liquid containing a small amount of solid particles - Google Patents
Annular gap type centrifugal extractor capable of treating feed liquid containing a small amount of solid particles Download PDFInfo
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- CN110465112B CN110465112B CN201910751501.6A CN201910751501A CN110465112B CN 110465112 B CN110465112 B CN 110465112B CN 201910751501 A CN201910751501 A CN 201910751501A CN 110465112 B CN110465112 B CN 110465112B
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- 239000007788 liquid Substances 0.000 title claims abstract description 37
- 239000002245 particle Substances 0.000 title claims abstract description 33
- 239000007787 solid Substances 0.000 title claims abstract description 33
- 238000001914 filtration Methods 0.000 claims abstract description 31
- 238000012545 processing Methods 0.000 claims abstract description 15
- -1 polytetrafluoroethylene Polymers 0.000 claims description 23
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 23
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 23
- 229910001220 stainless steel Inorganic materials 0.000 claims description 10
- 239000010935 stainless steel Substances 0.000 claims description 10
- 239000000919 ceramic Substances 0.000 claims description 3
- 230000008676 import Effects 0.000 claims 3
- 238000000034 method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 5
- 238000012546 transfer Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000001737 promoting effect Effects 0.000 abstract description 3
- 238000002156 mixing Methods 0.000 description 7
- 238000003825 pressing Methods 0.000 description 5
- 238000007789 sealing Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000000622 liquid--liquid extraction Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000638 solvent extraction Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 238000005191 phase separation Methods 0.000 description 2
- 238000000429 assembly Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000011001 backwashing Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D11/00—Solvent extraction
- B01D11/04—Solvent extraction of solutions which are liquid
- B01D11/0476—Moving receptacles, e.g. rotating receptacles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/04—Combinations of filters with settling tanks
- B01D36/045—Combination of filters with centrifugal separation devices
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Extraction Or Liquid Replacement (AREA)
Abstract
The invention discloses an annular space type centrifugal extractor capable of processing feed liquid containing a small amount of solid particles, which consists of an annular space type centrifugal extractor, a rotary drum bottom filtering component and an inlet pipe filtering component; the bottom of the rotary drum is provided with a filtering component at the bottom of the rotary drum (14) of the annular space type centrifugal extractor at a mixed phase inlet (8), and the inlet pipe filtering component is arranged at the inlets of a heavy phase inlet pipe (15) and a light phase inlet pipe (16) of the annular space type centrifugal extractor. The extractor is provided with a rotary drum bottom filtering component and an inlet pipe filtering component, can process feed liquid containing a small amount of solid particles, and has wide application range and high mass transfer efficiency; thereby improving the application level of the prior annular space type centrifugal extractor and promoting the application of the annular space type centrifugal extractor in various fields. The extractor has the advantages of simple structure, easy processing and manufacturing, low cost, easy operation and easy replacement of the filtering component.
Description
Technical Field
The invention belongs to the field of liquid-liquid extraction equipment, and particularly relates to an annular space type centrifugal extractor capable of treating feed liquid containing a small amount of solid particles.
Background
The annular space type centrifugal extractor is a high-efficiency liquid-liquid extraction device, realizes phase separation of two-phase mixed liquid by means of centrifugal force, and has the advantages of small liquid retention, short retention time, compact device, good phase separation performance, high mass transfer level efficiency, wide operation flow ratio range, simple operation, no damage to the established stable state during parking and the like, so the annular space type centrifugal extractor is widely applied to various industrial fields.
The working process of the existing annular space type centrifugal extractor is as follows: after two-phase liquid with different densities and insoluble with each other enters a mixing zone of the annular space type centrifugal extractor from a heavy phase inlet pipe and a light phase inlet pipe respectively, the two-phase liquid is violently and uniformly mixed in the mixing zone by the driving of a high-speed rotating drum and the friction between liquid layers, mixed liquid enters the rotating drum from a mixed phase inlet at the bottom of the rotating drum and is subjected to phase splitting under the action of strong centrifugal force, the heavy phase is thrown to the inner wall of the rotating drum, flows into a heavy phase collecting chamber through a rotating drum channel through a heavy phase weir, flows out from a heavy phase outlet pipe, and is extruded to the inner side of the rotating drum, the light phase flows into a light phase collecting chamber through a light phase weir, flows out from a light phase outlet pipe, and the two-phase liquid which flows out can enter respective storage tanks and can also flow into adjacent annular space type centrifugal extractors.
When the two-phase feed liquid contains a small amount of solid particles or solid particles are generated in the extraction process, the solid particles enter the rotary drum along with the liquid feed liquid through the mixed phase inlet at the bottom of the rotary drum. Because the density of the solid particles is higher than that of the two-phase liquid, the solid particles are thrown to the inner wall of the rotary drum under the action of centrifugal force, and because the resistance is high when the solid particles flow along the heavy phase channel, the solid particles are slowly accumulated on the inner wall of the rotary drum, so that the heavy phase channel is blocked, and the centrifugal extractor cannot normally operate, therefore, the annular gap type centrifugal extractor which can process feed liquid containing a small amount of the solid particles is needed to be invented.
Disclosure of Invention
The invention aims to design an annular gap type centrifugal extractor which can process feed liquid containing a small amount of solid particles, and has wide application range and high mass transfer efficiency; thereby improving the application level of the prior annular space type centrifugal extractor and promoting the application of the annular space type centrifugal extractor in various fields.
The invention has the technical scheme that the annular space type centrifugal extractor capable of treating the feed liquid containing a small amount of solid particles comprises an annular space type centrifugal extractor, a rotary drum bottom filtering component and an inlet pipe filtering component; the bottom filtering component of the rotary drum is arranged at the mixed phase inlet 8 at the bottom of the rotary drum 14 of the annular space type centrifugal extractor, and the inlet pipe filtering component is arranged at the inlets of a heavy phase inlet pipe 15 and a light phase inlet pipe 16 of the annular space type centrifugal extractor;
the bottom filtering component of the rotary drum consists of a filtering plate 7, a stainless steel plate 9, a screw 10 and a polytetrafluoroethylene seat 11; the filter plate 7 is arranged in a polytetrafluoroethylene seat 11 and is tightly pressed by a stainless steel plate 9, and the polytetrafluoroethylene seat 11 is fixed at a mixed phase inlet 8 at the bottom of a rotary drum 14 of the annular space type centrifugal extractor by a screw 10;
the bottom of the shell 13 of the annular space type centrifugal extractor is provided with a shell bottom flange 6, and a polytetrafluoroethylene gasket 4 and a shell bottom plate 2 are arranged on the shell bottom flange 6 by screws 5.
The inlet pipe filtering component comprises a polytetrafluoroethylene gasket 4, a filter plate 7, a screw 10 and a pressing ring 20, wherein the polytetrafluoroethylene gasket 4, the filter plate 7 and the pressing ring 20 are sequentially arranged in a connecting pipe 19 of the annular gap type centrifugal extractor, the parts are fixed on the connecting pipe 19 by the screw 10, and the connecting pipe 19 is arranged at inlets of a heavy phase inlet pipe 15 and a light phase inlet pipe 16 of the annular gap type centrifugal extractor.
The heavy phase inlet pipe 15 and the light phase inlet pipe 16 of the annular space type centrifugal extractor are right-angled bent pipes, one end pipe orifice of each bent pipe is welded on the shell 13 of the annular space type centrifugal extractor, the other end pipe orifice of each bent pipe is vertically upward, and the vertically upward pipe orifice of each bent pipe is provided with a lower flange 17.
The filter plate 7 is made of stainless steel or ceramic.
The aperture range of the filter plate 7 is 0.05-0.5 mm.
The inner diameter of the rotary drum 14 of the annular space type centrifugal extractor is 10-800 mm.
The annular space type centrifugal extractor capable of treating the feed liquid containing a small amount of solid particles provided by the invention has the following advantages:
1. the annular gap type centrifugal extractor capable of processing the feed liquid containing a small amount of solid particles is provided with the rotary drum bottom filtering component and the inlet pipe filtering component, can process the feed liquid containing a small amount of solid particles, and is wide in application range and high in mass transfer efficiency; thereby improving the application level of the prior annular space type centrifugal extractor and promoting the application of the annular space type centrifugal extractor in various fields.
2. The annular gap type centrifugal extractor capable of treating the feed liquid containing a small amount of solid particles has the advantages of simple structure, easiness in processing and manufacturing, low cost, easiness in operation and easiness in replacement of the filtering component.
Drawings
FIG. 1 is a schematic diagram of an annular space type centrifugal extractor capable of processing a feed liquid containing a small amount of solid particles.
FIG. 2 is a partially enlarged schematic view of the filter plate.
FIG. 3 is an enlarged partial schematic view of a drum bottom filter assembly mounted at the mixed phase inlet at the bottom of the drum.
Fig. 4 is a partially enlarged schematic view of the inlet tube filter assembly installed at the heavy phase inlet tube and the light phase inlet tube.
The reference numbers in the figures illustrate:
1. a discharge pipe; 2. a housing floor; 3. a fixed blade; 4. a polytetrafluoroethylene gasket; 5. a bolt; 6. a housing bottom flange; 7. a filter plate; 8. a mixed phase inlet at the bottom of the rotary drum; 9. a stainless steel plate; 10. a screw; 11. a polytetrafluoroethylene base; 12. a mixing zone; 13. a housing; 14. a rotating drum; 15. a heavy phase inlet pipe; 16. a light phase inlet pipe; 17. a lower flange; 18. an upper flange; 19. a connecting pipe; 20. pressing a ring; 21. a light phase outlet pipe; 22. a light phase collection chamber; 23. a heavy phase outlet pipe; 24. a light phase weir; 25. a heavy phase collection chamber; 26. a heavy phase weir; 27. a main shaft; 28. a bearing; 29. a bearing seat; 30. a coupling; 31. a motor base; 32. a motor;
Detailed Description
In order to make the implementation objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the accompanying drawings in the embodiments of the present invention. It should be emphasized that the following description is merely exemplary in nature and is not intended to limit the scope of the invention or its application.
Examples
An annular gap type centrifugal extractor capable of processing feed liquid containing a small amount of solid particles is shown in fig. 1 to 4.
As shown in FIG. 1, the annular gap type centrifugal extractor capable of processing feed liquid containing a small amount of solid particles in the embodiment is composed of an annular gap type centrifugal extractor, a filtering component at the bottom of a rotary drum and a filtering component of an inlet pipe.
The annular gap type centrifugal extractor comprises a discharge pipe 1, a shell bottom plate 2, a fixed blade 3, a bolt 5, a shell bottom flange 6, a mixed phase inlet 8 at the bottom of a rotary drum, a mixing zone 12, a shell 13, a rotary drum 14, a heavy phase inlet pipe 15, a light phase inlet pipe 16, a lower flange 17, an upper flange 18, a connecting pipe 19, a light phase outlet pipe 21, a light phase collecting chamber 22, a heavy phase outlet pipe 23, a light phase weir 24, a heavy phase collecting chamber 25, a heavy phase weir 26, a main shaft 27, a bearing 28, a bearing seat 20, a coupling 30, a motor seat 31 and a motor 32. Wherein, the heavy phase inlet pipe 15 and the light phase inlet pipe 16 are communicated with the inner cavity of the shell 13; the light phase outlet pipe 21 is communicated with the light phase collecting chamber 22; the heavy phase outlet pipe 23 communicates with a heavy phase collection chamber 24; the rotary drum 14 is fixedly connected with the main shaft 27; the inner rings of the two bearings 28 are fixed on the main shaft 27, and the outer rings thereof are fixed in the bearing seats 29, so that the drum 14 and the bearing seats 29 are assembled into an integral structure through the main shaft 27 and fixed with the housing 13 by bolts 5; the motor 32 is fixed on the motor base 31 and is fixed with the bearing block 29 by the bolt 5; a coupling 30 connects the spindle 27 to a motor 32.
A drum bottom filter assembly is mounted at the mixed phase inlet 8 at the bottom of the drum 14 to prevent solid particles contained in the two-phase feed liquid in the mixing zone 12 from flowing into the drum 14. The bottom filtering component of the rotary drum consists of a filtering plate 7, a stainless steel plate 9, a screw 10 and a polytetrafluoroethylene seat 11; the filter plate 7 is arranged in a polytetrafluoroethylene seat 11 and is tightly pressed by a stainless steel plate 9, and the polytetrafluoroethylene seat 11 is fixed at a mixed phase inlet 8 at the bottom of a rotary drum 14 of the annular space type centrifugal extractor by a screw 10. The support of the filter plate 7 is made of polytetrafluoroethylene materials, so that the sealing effect can be well achieved. The filter assembly adopts a detachable structure mode, and mainly aims to detach the filter assembly to be directly used after back washing or replace a new filter plate 7 when filter holes on the filter plate 7 are completely blocked and can not work. An enlarged partial configuration of the drum bottom filter assembly is shown in fig. 3.
Inlet tube filter assemblies are provided at the inlet of heavy phase inlet tube 15 and light phase inlet tube 16 to prevent small amounts of solid particles contained in the original two-phase feed liquid from entering mixing zone 12. The heavy phase inlet pipe 15 and the light phase inlet pipe 16 are right-angle bent pipes, one end pipe orifices of the heavy phase inlet pipe and the light phase inlet pipe are welded on the shell 13 of the annular space type centrifugal extractor, the other end pipe orifices of the heavy phase inlet pipe and the light phase inlet pipe are vertically upward, and the vertically upward pipe orifices of the heavy phase inlet pipe and the light phase inlet pipe are provided with lower flanges 17. A connecting pipe 19 with an upper flange 18 is arranged at the inlet of a heavy phase inlet pipe 15 and a light phase inlet pipe 16, a filtering component of the inlet pipe consists of a polytetrafluoroethylene gasket 4, a filtering plate 7, a screw 10 and a pressing ring 20, the polytetrafluoroethylene gasket 4, the filtering plate 7 and the pressing ring 20 are sequentially arranged in the connecting pipe 19, wherein the tetrafluoroethylene gasket 4 has a sealing function, the parts are fixed on the connecting pipe 19 by the screw 10, the connecting pipe 19 is connected with the heavy phase inlet pipe 15 and a lower flange 17 of the light phase inlet pipe 16 by bolts 5 through the upper flange 18, and the polytetrafluoroethylene gasket 4 is arranged between the upper flange 18 and the lower flange 17 to have the sealing function. When the filter holes on the filter plate 7 are completely blocked and can not work, the filter assembly is disassembled to be directly backflushed and reused, or a new filter plate 7 is replaced. An enlarged partial configuration of the inlet tube filter assembly is shown in fig. 4. It will be appreciated by those skilled in the art that the inlet tube filter assembly can also be installed within the mouths of the heavy phase inlet tube 15 and the light phase inlet tube 16.
The bottom of the shell 13 of the annular space type centrifugal extractor is provided with a shell bottom flange 6, a polytetrafluoroethylene gasket 4 and a shell bottom plate 2 are arranged on the shell bottom flange 6 by screws 5,
the bottom of the housing 13 is designed as a removable assembly to facilitate the flushing of solid particles accumulated on the housing floor 2 and the direct removal of the drum bottom filter assembly at the drum bottom mixed phase inlet 8 without the need to remove the assembly of drum 14+ bearing housing 29+ motor housing 31+ motor 32. The method is that the fixed blade 3 is fixed on the bottom plate 2 of the shell, a polytetrafluoroethylene gasket 4 is arranged on the fixed blade for sealing, the bottom plate 2 of the shell is fastened on a bottom flange 6 of the shell by a screw 5, and the bottom plate 2 of the shell is provided with a discharging pipe 1 for discharging the material liquid in a mixing area 12.
The structure of the filter plate 7 is shown in fig. 2, the material of the filter plate is stainless steel or ceramic, and the aperture range on the filter plate 7 is 0.05-0.5 mm.
The technical scheme of the invention is generally suitable for an annular gap type centrifugal extractor with the inner diameter of a rotary drum 14 of 10-800mm, and is used for research and industrial production of liquid-liquid extraction experiments of feed liquid containing a small amount of solid particles.
The invention has the advantages that: simple structure, easy processing and manufacturing, low cost, wide application range, high efficiency of mass transfer level, easy operation and capability of processing feed liquid containing a small amount of solid particles.
Finally, it should be pointed out that: the above examples are only for illustrating the technical solutions of the present invention, and are not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (6)
1. An annular space type centrifugal extractor capable of processing feed liquid containing a small amount of solid particles is characterized in that: the device consists of an annular space type centrifugal extractor, a rotary drum bottom filtering component and an inlet pipe filtering component; the bottom filtering component of the rotary drum is arranged at a mixed phase inlet (8) at the bottom of the rotary drum (14) of the annular space type centrifugal extractor, and the inlet pipe filtering component is arranged at inlets of a heavy phase inlet pipe (15) and a light phase inlet pipe (16) of the annular space type centrifugal extractor;
the bottom filtering component of the rotary drum is composed of a filtering plate (7), a stainless steel plate (9), a screw (10) and a polytetrafluoroethylene seat (11); the filter plate (7) is arranged in a polytetrafluoroethylene seat (11) and is tightly pressed by a stainless steel plate (9), and the polytetrafluoroethylene seat (11) is fixed at a mixed phase inlet (8) at the bottom of a rotary drum (14) of the annular space type centrifugal extractor by a screw (10);
the bottom of a shell (13) of the annular space type centrifugal extractor is provided with a shell bottom flange (6), and a polytetrafluoroethylene gasket (4) and a shell bottom plate (2) are arranged on the shell bottom flange (6) through screws (5).
2. An annular space type centrifugal extractor capable of processing feed liquid containing a small amount of solid particles as claimed in claim 1, wherein: import pipe filtering component is by polytetrafluoroethylene gasket (4), filter (7), screw (10) and clamping ring (20), installs polytetrafluoroethylene gasket (4), filter (7) and clamping ring (20) in proper order in connecting pipe (19) of annular gap formula centrifugal extractor, fixes above-mentioned part on connecting pipe (19) with screw (10), and the entrance of heavy phase import pipe (15) and light phase import pipe (16) at annular gap formula centrifugal extractor is installed in connecting pipe (19).
3. An annular space type centrifugal extractor capable of processing feed liquid containing a small amount of solid particles as claimed in claim 1, wherein: the heavy phase inlet pipe (15) and the light phase inlet pipe (16) of the annular space type centrifugal extractor are right-angle bent pipes, one end pipe orifice of each pipe orifice is welded on a shell (13) of the annular space type centrifugal extractor, the other end pipe orifice is vertically upward, and a lower flange (17) is arranged on the pipe orifice vertically upward.
4. An annular space type centrifugal extractor capable of processing feed liquid containing a small amount of solid particles as claimed in claim 1 or 2, wherein: the filter plate (7) is made of stainless steel or ceramic.
5. An annular space type centrifugal extractor capable of processing feed liquid containing a small amount of solid particles as claimed in claim 1 or 2, wherein: the aperture range of the filter plate (7) is 0.05-0.5 mm.
6. An annular space type centrifugal extractor capable of processing feed liquid containing a small amount of solid particles as claimed in claim 1, wherein: the inner diameter of a rotary drum (14) of the annular space type centrifugal extractor is 10-800 mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910751501.6A CN110465112B (en) | 2019-08-15 | 2019-08-15 | Annular gap type centrifugal extractor capable of treating feed liquid containing a small amount of solid particles |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910751501.6A CN110465112B (en) | 2019-08-15 | 2019-08-15 | Annular gap type centrifugal extractor capable of treating feed liquid containing a small amount of solid particles |
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| CN110465112A CN110465112A (en) | 2019-11-19 |
| CN110465112B true CN110465112B (en) | 2020-08-21 |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115364573A (en) * | 2022-08-17 | 2022-11-22 | 回头客食品集团股份有限公司 | Centrifugal extraction machine that bronze gong burns raw materials extraction usefulness |
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| CN109806654A (en) * | 2019-03-13 | 2019-05-28 | 陈照 | A kind of sedimeter of high efficient anti-blocking |
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| US10427069B2 (en) * | 2011-08-18 | 2019-10-01 | Inaeris Technologies, Llc | Process for upgrading biomass derived products using liquid-liquid extraction |
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| CN110465112A (en) | 2019-11-19 |
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