CN103406211B - Centrifugal vacuum composite segregator - Google Patents
Centrifugal vacuum composite segregator Download PDFInfo
- Publication number
- CN103406211B CN103406211B CN201310374117.1A CN201310374117A CN103406211B CN 103406211 B CN103406211 B CN 103406211B CN 201310374117 A CN201310374117 A CN 201310374117A CN 103406211 B CN103406211 B CN 103406211B
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- segregator
- central shaft
- rotary drum
- distribution plate
- centrifugal vacuum
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Abstract
The invention relates to a centrifugal vacuum composite segregator and belongs to the technical field of disc type separator structures. A segregation vacuum assembly in the centrifugal vacuum composite segregator comprises a central shaft assembly located at the rotating center and a rotary drum assembly rotating around a central shaft. The centrifugal vacuum composite segregator adopts an aluminium alloy rotary drum and a sedimentation piece made of a high polymer material, the inertia effect is reduced to the most extent, the sedimentation piece is provided with a bowl-shaped structure of the Archimedes line, so that a stock solution path in the rotary drum is lengthened, the separation time is prolonged, and the separation efficiency and the accuracy are improved. A gas guide tube is arranged in the rotary drum, gas in a stock solution is removed, and the situation that a rotary drum gas plug enables the flow quantity of the segregator to be reduced is avoided.
Description
Technical field
The present invention relates to a kind of centrifugal vacuum composite segregator, belong to disk centrifuge technical field of structures.
Background technology
Disk centrifuge is the one in sedimentation-type centrifuge, utilize in mixed liquor (dirty solution) to there is different densities and immiscible light liquid, heavy-fluid and solid phase, in centrifugal force field, obtain the principle of different sinking speed, reach separation, layering or make the object of solid particles sediment in mixed liquor.All trades and professions all have application, apply quite extensive.And traditional disk plate centrifuge is because its structure is simple, adopt stainless steel material, rotatable parts weight is large, rotating speed generally can not more than 6000 revs/min, suffered by mixed liquor in rotary drum, centrifugal force is limited, the separating substances effect close for proportion is undesirable, separation accuracy is not high, simultaneously helpless for the gas in mixed liquor.
Summary of the invention
The object of the invention is to the deficiency solving the existence of above-mentioned prior art, provide one to realize gas, liquid, solid and be separated, separation accuracy is high, the centrifugal vacuum composite segregator of portable construction.
Centrifugal vacuum composite segregator of the present invention, its special character is that separate vacuum assembly comprises the central axis component 18 being positioned at pivot and the drum assembly 6 rotated around central shaft 21.
Described central axis component 18 comprises charging aperture 14, discharging opening 19 and the central shaft 21 with cavity, and radial impeller 11 is fixed on the upper end of central shaft 21, and wireway 13 is arranged on the inner chamber 23 of central shaft 21, and the below of central shaft 21 is located at by sedimentation basin 9; Described charging aperture 14 communicates with the cavity 22 of central shaft 21, forms the passage that material enters drum assembly; The centre bore of described radial impeller 11 communicates with the inner chamber 23 of central shaft 21, discharging opening 19, forms light liquid after being separated and discharges the passage of drum assembly; The center on radial impeller 11 top is fixed on described wireway 13 top, and the afterbody of central shaft 21 is fixed in bottom, is communicated with by the bleeding point of flexible pipe with vavuum pump 5, forms gas after being separated and discharges the passage of drum assembly.
Described drum assembly 6 comprises rotary drum 16, material distribution plate 17, sinker 15, described rotary drum 16 is linked together by snap ring or screw thread and material distribution plate 17, sinker 15 overlap is sat and is placed on material distribution plate 17, fixed, by material distribution plate 17 driven rotary by flat key and material distribution plate 17.
Centrifugal vacuum composite segregator also comprises the motor 10 be fixed on support 8, transmission device 7, material transmission system, drum assembly 6 is driven by motor 10 by transmission device 7, and around central shaft 21 high-speed rotation, very high vacuum is formed in rotary drum inside, mixed liquor enters in rotary drum 16 by the material channel of material transmission system and central axis component 18, High Rotation Speed under the drive of rotary drum 16, be separated into rapidly light liquid, heavy-fluid and solid particle, the gas effusion be dissolved in mixed liquor collects in the upper end of rotary drum 16.
Described material distribution plate 17 is provided with the through hole 20 of even equal portions distribution material, and little, square-outside and round-inside in through hole is outer large, material distribution plate is uniformly distributed.
Described material transmission system comprises the feed pipe 2, charging pump 4, the feed tank 3 that connect successively, mixed liquor is squeezed in feed tank 3 by described charging pump 4, transfer to the charging aperture 14 of central axis component 18 and the cavity 22 of central shaft, and it is inner to enter rotary drum 16 by the through hole 20 of material distribution plate 17, light liquid is discharged through sinker 15, central shaft 18 inner chamber 23, discharging opening 14, discharge nozzle 1; Heavy-fluid via through holes 20, cavity 22 enter sedimentation basin 9; Gas is discharged through radial impeller 11, wireway 13, vavuum pump 5.
Described sinker 15 inner surface has spiral of Archimedes, and in bowl structure, its lower hollow, has card 24 to fix in the groove in the middle part of material distribution plate at the bottom of bowl.
Described rotary drum 16, material distribution plate 17 are aluminum alloy material.
Described sinker 15 is macromolecular material.
Wheel 12 is installed bottom described centrifugal vacuum composite segregator.
Centrifugal vacuum composite segregator of the present invention, adopt the sinker of aluminium alloy rotary drum, macromolecular material, reduce the rotator inertia of parts to greatest extent, condition is created for improving rotary drum rotating speed further, and the bowl structure that sinker has archimedes line makes light liquid sedimentation path in rotary drum lengthen, be convenient to the sedimentation of fine solid particle, improve separative efficiency, precision.Be provided with wireway in rotary drum, both eliminated the gas in stoste, it also avoid because rotary drum vent plug makes seperator flow reduce.
Accompanying drawing explanation
Fig. 1: the structural representation of centrifugal vacuum composite segregator of the present invention;
Fig. 2: the structural representation of separate vacuum assembly in the present invention;
Fig. 3: the generalized section of material distribution plate in the present invention;
Fig. 4: the top view of material distribution plate in the present invention;
Fig. 5: the generalized section of central axis component in the present invention;
Fig. 6: the top view of central axis component in the present invention;
Fig. 7: the generalized section of sinker in the present invention;
The A of Fig. 8: Fig. 7 is to figure;
In figure: 1: discharge nozzle; 2: feed pipe; 3: feed tank; 4: charging pump; 5: vavuum pump; 6: drum assembly; 7: transmission device; 8: support; 9: sedimentation basin; 10: motor; 11: radial impeller; 12: wheel; 13: wireway; 14: charging aperture; 15: sinker; 16: rotary drum; 17: material distribution plate; 18: central axis component; 19: discharging opening; 20: through hole; 21: central shaft; 22: cavity; 23: inner chamber; 24: card.
Detailed description of the invention
Referring to accompanying drawing, provide the specific embodiment of the present invention, be used for being further described formation of the present invention.
Embodiment 1
The centrifugal vacuum composite segregator of the present embodiment, material to be separated is squeezed in feed tank 3 by feed pipe 2 through charging pump 4, drum assembly 6 is driven by the motor 10 be fixed on support 8 by transmission device 7, and around central shaft 21 high-speed rotation, the separate vacuum assembly inside of High Rotation Speed forms vacuum, by mixed liquor from feed tank 3 through charging aperture 14, the cavity 22 of central shaft 21, the through hole 20 of material distribution plate 17 sucks rotary drum 16, mixed liquor is in powerful centrifugal effect lower leaf, solid particles sediment is at drum inner wall, heavy-fluid layer collects in the outside of rotary drum 16 inside, air accumulation is on the top of rotary drum 16.Light liquid enters the gap between sinker 15 by sinker 15 outer rim under the effect of radial impeller 11, gap is about 0.1mm ~ 0.2mm, light liquid between gap again by supernatant, come together in rotary drum 16 top, be pressed into the inner chamber 23 of central shaft 21 by radial impeller 11, discharge outside body through discharging opening 19, discharge nozzle 1.The gas being gathered in rotary drum 16 top discharges body from wireway 13 through vavuum pump 5.Heavy-fluid, after drum assembly 6 stops the rotation, under gravity through the through hole 20 of material distribution plate 17, the cavity 22 of central shaft 21, enters sedimentation basin 9.
Little, square-outside and round-inside in large outside equally distributed through hole 20 on described material distribution plate 17, can be evenly distributed in rotary drum 16 inner, reduce mixed liquor disturbance simultaneously by mixed liquor, facilitate mixed liquor fast hierarchical and be separated.
During the space of described material flow between sinker 15, solid particle is along sinker 15 upper surface slide under centrifugal action, and the position accumulating in drum inner wall largest diameter after departing from sinker forms slag blanket, can be discharged rotary drum 16 by manual operation; Light phase liquid by sinker 15 lower surface along Archimedes's alignment rotary drum 16 central motion, rotary drum 16 top is arrived under the effect of radial impeller 11, be collected to central shaft 21 inner chamber 23 through radial impeller 11, discharge body from the discharging opening 19 of central axis component 18 through discharge nozzle 1; Heavy phase liquid accumulates in the sinker edge near slag blanket under centrifugal action, enters sedimentation basin 9 automatically discharge along the material distribution plate 17 of rotary drum 16 bottom and central shaft cavity 22; Separator drum 16 is inner when High Rotation Speed forms negative pressure, and the gas be dissolved in material is separated out naturally from material, gathers rotary drum 16 top, is discharged, realize the degassed of material by the wireway 13 be positioned in the middle of central shaft 21.
Described wireway 13, the center of radial impeller 11 is fixed on its top, and the afterbody of central shaft 18 is fixed in bottom, is communicated with by the bleeding point of flexible pipe with vavuum pump 5 through central shaft inner chamber.
Described sinker 15 is bowl structure that inner surface has many archimedes line lug, nibs, hollow at the bottom of its bowl, , there is card at the bowl end to fix in the groove in the middle part of material distribution plate, the ramp structure of its bowl-like wall, archimedes line lug, nib adds mixed liquor sedimentation path, it is inner that mixed liquor enters rotary drum 16 by charging aperture 14, sinker 15 upper end is risen to and at the bottom of taking advantage of a situation and entering inside bowl nation bowl outside sinker 15, through the sedimentation of the sinker 15 of multilayer intussusception, improve separating effect, simultaneously, gap length between sinker effectively can regulate the separation accuracy of seperator.
Centrifugal vacuum composite segregator realizes the entirety movement flexibly of body under the slip of wheel 12.
Adopt the centrifugal vacuum composite segregator of this embodiment can realize three kinds of operations: liquid-solid separation, i.e. clarification activities; Liquid-liquid is separated, i.e. lock out operation (two kinds of liquid specific gravity differences); Liquid-gas is separated, i.e. degassing operation.
By the Auto Power On arranging touch-screen, PLC, magnetic valve, motor-driven valve, pressure sensor, temperature sensor, liquid level sensor can realize seperator, discharge light liquid continuously, automatically discharge heavy-fluid, regularly exhaust etc., make seperator realize Automatic Control function, be widely used in every field.
The profile of existing disk centrifuge is heavy, separating factor is low, inferior separating effect; And centrifugal compound separator structure compact and reasonable of the present invention, rotary drum rotating speed can be greater than 10000r/min, separating factor can reach 16000, and separation accuracy is high, good separating effect, separative efficiency is high, simultaneously profile is light and handy, simple to operate, and wheel is housed, mobilely also facilitates.
The centrifugal vacuum composite segregator of the present embodiment has following features:
1. the rotary drum of this seperator adopts the aluminum alloy materials of high-quality, and quality is light, mechanical performance is superior, reduces the inertia of rotary drum to greatest extent, and seperator turns scooter 10000 turns, and separation factor reaches 16000.
2. sinker material adopts the macromolecular materials such as light nylon, and inertia is little.The path that the bowl-shape sinker with archimedes line makes stoste in rotary drum lengthens, and disengaging time increases, and substantially increases separation accuracy, efficiency.
3. at the peak of rotary drum, wireway has been installed, has eliminated the gas in stoste, avoided because of rotary drum vent plug simultaneously, the phenomenon of the flow minimizing of seperator.
4. material distribution plate have 12 outer large in the through hole of little, square-outside and round-inside, it is uniformly distributed on material distribution plate, is conducive to material being uniformly distributed in rotary drum, and reduce mixed liquor disturbance, be also sinker 15 supporting seat simultaneously.
5. this seperator realizes the Automatic Control of the solid-liquid of material, liquid-liquid, liquid-gas separation process, compact conformation, simple to operate, feed separation precision is high, production capacity large, all obtains extensive use at chemical industry, medicine, light industry, food, bioengineering and traffic and transport field.
4. material distribution plate have 12 outer large in the through hole of little, square-outside and round-inside, it is uniformly distributed on material distribution plate, is conducive to material being uniformly distributed in rotary drum, and reduce mixed liquor disturbance, be also sinker 15 supporting seat simultaneously.
5. this seperator realizes the Automatic Control of the solid-liquid of material, liquid-liquid, liquid-gas separation process, compact conformation, simple to operate, feed separation precision is high, production capacity large, all obtains extensive use at chemical industry, medicine, light industry, food, bioengineering and traffic and transport field.
Claims (9)
1. centrifugal vacuum composite segregator, is characterized in that separate vacuum assembly comprises the central axis component (18) being positioned at pivot and the drum assembly (6) rotated around central shaft (21); Described central axis component (18) comprises charging aperture (14), discharging opening (19) and the central shaft (21) with cavity, radial impeller (11) is fixed on the upper end of central shaft (21), wireway (13) is arranged on the inner chamber (23) of central shaft (21), and the below of central shaft (21) is located at by sedimentation basin (9); Described charging aperture (14) communicates with the cavity (22) of central shaft (21), forms the passage that material enters drum assembly; The centre bore of described radial impeller (11) communicates with the inner chamber (23) of central shaft (21), discharging opening (19), forms light liquid after being separated and discharges the passage of drum assembly; The center on radial impeller (11) top is fixed on described wireway (13) top, and the afterbody of central shaft (21) is fixed in bottom, is communicated with by the bleeding point of flexible pipe with vavuum pump (5), forms gas after being separated and discharges the passage of drum assembly.
2. centrifugal vacuum composite segregator as claimed in claim 1, it is characterized in that described drum assembly (6) comprises rotary drum (16), material distribution plate (17), sinker (15), described rotary drum (16) is linked together by snap ring or screw thread and material distribution plate (17), described sinker (15) overlap is sat and is placed on material distribution plate (17), fixed, by material distribution plate (17) driven rotary by flat key and material distribution plate (17).
3. centrifugal vacuum composite segregator as claimed in claim 1, it is characterized in that centrifugal vacuum composite segregator also comprises the motor (10) be fixed on support (8), transmission device (7), material transmission system, drum assembly (6) is driven by motor (10) by transmission device (7), and around central shaft (21) high-speed rotation, mixed liquor enters in rotary drum (16) by the material channel of material transmission system and central axis component (18), High Rotation Speed under the drive of rotary drum (16), be separated into light liquid, heavy-fluid and solid particle, the gas effusion be dissolved in mixed liquor collects in the top of rotary drum (16).
4. centrifugal vacuum composite segregator as claimed in claim 2, is characterized in that described material distribution plate (17) is provided with the through hole (20) of even equal portions distribution material, through hole outer large in little, square-outside and round-inside, material distribution plate is uniformly distributed.
5. centrifugal vacuum composite segregator as claimed in claim 3, it is characterized in that described material transmission system comprises feed pipe (2), charging pump (4), the feed tank (3) connected successively, mixed liquor is squeezed in feed tank (3) by described charging pump (4), transfer to the charging aperture (14) of central axis component (18) and the cavity (22) of central shaft, and it is inner to enter rotary drum (16) by the through hole (20) of material distribution plate (17), light liquid is discharged through sinker (15), central shaft (18) inner chamber (23), discharging opening (14), discharge nozzle (1); Heavy-fluid enters sedimentation basin (9) through the through hole (20) of material distribution plate (17), the cavity (22) of central shaft; Gas is discharged through radial impeller (11), wireway (13), vavuum pump (5).
6. the centrifugal vacuum composite segregator as described in claim 2 or 5, it is characterized in that described sinker (15) inner surface has spiral of Archimedes, in bowl structure, its lower hollow, has card (24) to fix in the groove in the middle part of material distribution plate at the bottom of bowl.
7. the centrifugal vacuum composite segregator as described in claim 2 or 5, is characterized in that described rotary drum (16), material distribution plate (17) is aluminum alloy material.
8. the centrifugal vacuum composite segregator as described in claim 2 or 5, is characterized in that described sinker (15) is macromolecular material.
9. centrifugal vacuum composite segregator as claimed in claim 1, is characterized in that being provided with wheel (12) bottom described centrifugal vacuum composite segregator.
Priority Applications (1)
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CN201310374117.1A CN103406211B (en) | 2013-06-27 | 2013-08-26 | Centrifugal vacuum composite segregator |
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CN2013102622940 | 2013-06-27 | ||
CN201310262294 | 2013-06-27 | ||
CN201310262294.0 | 2013-06-27 | ||
CN201310374117.1A CN103406211B (en) | 2013-06-27 | 2013-08-26 | Centrifugal vacuum composite segregator |
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CN103406211A CN103406211A (en) | 2013-11-27 |
CN103406211B true CN103406211B (en) | 2015-06-24 |
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CN201310374117.1A Expired - Fee Related CN103406211B (en) | 2013-06-27 | 2013-08-26 | Centrifugal vacuum composite segregator |
CN201320521171.XU Withdrawn - After Issue CN203425926U (en) | 2013-06-27 | 2013-08-26 | Centrifugal vacuum composite separating machine |
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CN201320521171.XU Withdrawn - After Issue CN203425926U (en) | 2013-06-27 | 2013-08-26 | Centrifugal vacuum composite separating machine |
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Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
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CN103406211B (en) * | 2013-06-27 | 2015-06-24 | 国宇新兴(北京)技术发展有限公司 | Centrifugal vacuum composite segregator |
CN105195339B (en) * | 2015-11-04 | 2018-02-02 | 世林(漯河)冶金设备有限公司 | A kind of closed centrifugal machine exhaust apparatus |
CN106111047B (en) * | 2016-06-29 | 2018-07-24 | 昆明理工大学 | A kind of mass transfer disk that can effectively improve single-phase or heterogeneous system mixing intensity and mass transfer rate |
CN106111037B (en) * | 2016-06-29 | 2017-12-01 | 昆明理工大学 | A kind of single-phase or heterogeneous reaction device for effectively improving mixing intensity and mass transfer rate |
CN106902991B (en) * | 2017-03-06 | 2022-09-23 | 大连理工大学 | Vertical dome centripetal condensation type separator and separation method thereof |
EP3666384B1 (en) * | 2018-12-10 | 2021-08-18 | Alfa Laval Corporate AB | Centrifugal separator and method for eliminating air locks in a centrifugal separator |
CN109833980B (en) * | 2018-12-29 | 2023-09-15 | 苏州丰亚达环保科技有限公司 | Centrifugal structure for high-precision three-phase separation |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2024671A5 (en) * | 1969-10-06 | 1970-08-28 | Alfa Laval Ab | Centrifuge for gas liquid sepn |
GB1244577A (en) * | 1969-03-14 | 1971-09-02 | Vogelbusch Gmbh | Apparatus for separating the gas and liquid fractions of a foam |
CN1671952A (en) * | 2002-06-24 | 2005-09-21 | 阿尔法拉瓦尔股份有限公司 | Method of cleaning crankcase gas and a gas cleaning separator |
CN101189068A (en) * | 2006-05-11 | 2008-05-28 | 威斯特伐利亚分离器股份公司 | Three-phase separator comprising a skimming disc and solid discharge orifices |
CN102026728A (en) * | 2008-05-13 | 2011-04-20 | Gea韦斯伐里亚分离机有限公司 | Centrifuge having a drum provided with a separator disk package |
CN203425926U (en) * | 2013-06-27 | 2014-02-12 | 国宇新兴(北京)技术发展有限公司 | Centrifugal vacuum composite separating machine |
-
2013
- 2013-08-26 CN CN201310374117.1A patent/CN103406211B/en not_active Expired - Fee Related
- 2013-08-26 CN CN201320521171.XU patent/CN203425926U/en not_active Withdrawn - After Issue
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1244577A (en) * | 1969-03-14 | 1971-09-02 | Vogelbusch Gmbh | Apparatus for separating the gas and liquid fractions of a foam |
FR2024671A5 (en) * | 1969-10-06 | 1970-08-28 | Alfa Laval Ab | Centrifuge for gas liquid sepn |
CN1671952A (en) * | 2002-06-24 | 2005-09-21 | 阿尔法拉瓦尔股份有限公司 | Method of cleaning crankcase gas and a gas cleaning separator |
CN101189068A (en) * | 2006-05-11 | 2008-05-28 | 威斯特伐利亚分离器股份公司 | Three-phase separator comprising a skimming disc and solid discharge orifices |
CN102026728A (en) * | 2008-05-13 | 2011-04-20 | Gea韦斯伐里亚分离机有限公司 | Centrifuge having a drum provided with a separator disk package |
CN203425926U (en) * | 2013-06-27 | 2014-02-12 | 国宇新兴(北京)技术发展有限公司 | Centrifugal vacuum composite separating machine |
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CN203425926U (en) | 2014-02-12 |
CN103406211A (en) | 2013-11-27 |
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