CN113399126A - Liquid-liquid separation two-phase horizontal screw centrifuge - Google Patents
Liquid-liquid separation two-phase horizontal screw centrifuge Download PDFInfo
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- CN113399126A CN113399126A CN202110818135.9A CN202110818135A CN113399126A CN 113399126 A CN113399126 A CN 113399126A CN 202110818135 A CN202110818135 A CN 202110818135A CN 113399126 A CN113399126 A CN 113399126A
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- 239000007788 liquid Substances 0.000 title claims abstract description 53
- 238000000926 separation method Methods 0.000 title claims abstract description 17
- 239000007791 liquid phase Substances 0.000 claims abstract description 39
- 239000012071 phase Substances 0.000 claims abstract description 26
- 230000000903 blocking effect Effects 0.000 claims abstract description 16
- 239000007790 solid phase Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 4
- 230000009977 dual effect Effects 0.000 abstract description 3
- 230000005484 gravity Effects 0.000 abstract description 3
- 239000007787 solid Substances 0.000 description 7
- 238000007599 discharging Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000005191 phase separation Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- 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
-
- 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
- B04B11/02—Continuous feeding or discharging; Control arrangements therefor
-
- 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
- B04B7/12—Inserts, e.g. armouring plates
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- Centrifugal Separators (AREA)
Abstract
一种可进行两种液体分离的两相卧螺离心机，包括转鼓，转鼓内设置有螺旋，螺旋中间设有拦液板，螺旋内部中空，螺旋的中空内部与进料管相连通，转鼓上有轻液相出口和重液相出口。进料管在连续进料的情况下，转鼓内的重液相层在离心液压力和螺旋叶片推力的双重作用下翻过拦液板外圆与转鼓内壁之间形成的环形通道，进入锥转鼓段并从锥转鼓上开设的重液相溢流孔中通过重力排出转鼓体，由罩壳的重相出口收集并外排；转鼓内的轻液相层在离心力的作用下通过转鼓大端盖轴上开设的轻液相溢流孔排出转鼓体，由罩壳的轻相出口收集并外排，从而实现两种不同密度的混合液体的分离。
The utility model relates to a two-phase decanter centrifuge capable of separating two kinds of liquids, comprising a rotating drum, a spiral is arranged in the drum, a liquid blocking plate is arranged in the middle of the spiral, the inside of the spiral is hollow, and the hollow interior of the spiral is communicated with a feeding pipe, There is a light liquid phase outlet and a heavy liquid phase outlet on the drum. In the case of continuous feeding of the feeding pipe, the heavy liquid phase layer in the drum turns over the annular channel formed between the outer circle of the liquid blocking plate and the inner wall of the drum under the dual action of centrifugal hydraulic pressure and the thrust of the helical blade, and enters into the drum. The cone drum section is discharged from the drum body by gravity from the heavy liquid phase overflow hole opened on the cone drum, and is collected and discharged by the heavy phase outlet of the cover; the light liquid layer in the drum is under the action of centrifugal force. The bottom of the drum is discharged from the drum body through the light phase overflow hole opened on the shaft of the large end cover of the drum, and is collected by the light phase outlet of the cover and discharged to the outside, so as to realize the separation of two mixed liquids of different densities.
Description
Technical Field
The invention belongs to the technical field of engineering machinery, and particularly relates to a two-phase horizontal spiral centrifugal machine for liquid-liquid separation.
Background
In various industries, a large amount of horizontal screw centrifuges are needed for separating solid-liquid mixed materials. The conventional two-phase horizontal screw centrifuge can generally separate a solid from a liquid, when the material contains two liquids with different densities and contains a proper amount of solid, when the liquid with low density is required to be separated from the mixed liquid (equivalently, the liquid is divided into two parts, one part is a light liquid phase, and the other part is a heavy liquid phase and a solid phase), the separation requirement cannot be realized by the common two-phase horizontal screw centrifuge, and the separation requirement cannot be met by the liquid-solid three-phase horizontal screw centrifuge because the two liquid phases and the solid phase are separated into three parts. This requires the use of a two-phase horizontal screw centrifuge of special technology to achieve the separation requirements described above.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a liquid-liquid separation two-phase horizontal spiral centrifugal machine which adopts a special liquid blocking plate structure and can realize the separation of two mixed liquids with different densities.
The invention provides a liquid-liquid separation two-phase horizontal screw centrifuge which comprises a machine base (13), a cover shell (17) and a feeding pipe (12) which are fixed on the machine base, a rotary drum (5) which is protected by the cover shell (17) and a material pushing screw (7), wherein a heavy phase outlet (15) is arranged below one end of the cover shell (17), a light phase outlet (20) is arranged below the other end of the cover shell, the big end of the rotary drum (5) is fixedly connected with a big end cover shaft (3), the big end cover shaft (3) is arranged on one supporting surface of the machine base (13) through a first bearing seat (2), the small end of the rotary drum (5) is fixedly connected with a small end cover shaft (14), the small end cover shaft (14) is arranged on the other supporting surface of the machine base (13) through a second bearing seat (11), one end of the big end cover shaft (3), which is far away from the rotary drum (5), is connected with a differential (1), the big end cover shaft (3) is provided with a light liquid phase overflow hole (4), and the small end of the rotary drum (5) is provided with a heavy liquid phase overflow hole (10), set up spiral (7) in rotary drum (5), spiral (7) are including spiral mandrel (18) and helical blade (19), helical blade (9) are along axial evenly distributed on spiral mandrel (18), be equipped with on spiral mandrel (18) the circumference of the one end of the little head end that is close to rotary drum (5) and block liquid board (16), the inside cavity of the one end of the little head end that spiral (7) are close to rotary drum (5), the cavity is inside to be linked together with inlet pipe (12), the interlude of spiral (7) sets up spiral discharge gate (8), the outer end of inlet pipe (12) is fixed on frame (13).
As a further technical scheme of the invention, a belt pulley is arranged on a differential (1), the differential (1), a large end cover shaft (3), a rotary drum (5) and a small end cover shaft (14) are sequentially connected into a whole, and the high-speed rotation is driven by the belt pulley; the screw (7) is driven to rotate at a high speed through the differential mechanism 1, and meanwhile, a stable rotation speed difference is formed between the screw and the rotary drum (5); the helical blade (19) pushes the heavy liquid phase and the solid phase to the heavy liquid phase overflow hole (10) through the liquid blocking plate (16) under the action of the rotation speed difference and discharges the heavy liquid phase and the solid phase out of the centrifuge, and the light liquid phase is discharged out of the centrifuge through the light liquid phase overflow hole 4 on the large end cover shaft (3) under the centrifugal force, so that the liquid-liquid two-phase separation is realized.
Furthermore, the liquid blocking plate (16) is a circular annular plate, the diameter of the outer circle of the circular annular plate is smaller than that of the outer circle of the spiral blade (19), the liquid blocking plate (16), the rotary drum (5) and the large end cover shaft (3) form a rotary drum inner cavity, and an annular channel is formed between the outer circle of the liquid blocking plate (16) on the spiral mandrel (18) and the inner wall of the rotary drum (5).
The invention has the advantages of simple structure, convenient installation, maintenance and overhaul, and is suitable for the separation of two liquids with different densities, and the solid particles in the liquid do not need to be separated; the heavy liquid phase layer in the rotary drum turns over an annular channel formed between the outer circle of the liquid blocking plate and the inner wall of the rotary drum under the dual actions of centrifugal liquid pressure and helical blade thrust, enters the conical rotary drum section, is discharged out of the rotary drum body from a heavy liquid phase overflow hole formed in the conical rotary drum through gravity, and is collected and discharged outside through a heavy phase outlet of the housing; the light liquid phase layer in the rotary drum is discharged out of the rotary drum body through a light liquid phase overflow hole formed in a large end cover shaft of the rotary drum under the action of centrifugal force, and is collected and discharged outside through a light phase outlet of the housing, so that the separation of two mixed liquids with different densities is realized.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
Referring to fig. 1, the present embodiment provides a two-phase horizontal decanter centrifuge for liquid-liquid separation, including a machine base 13, a housing 17 and a feeding pipe 12 fixed on the machine base, a rotary drum 5 protected by the housing 17, and a pushing screw 7, wherein a heavy phase outlet 15 is provided below one end of the housing 17, a light phase outlet 20 is provided below the other end of the housing 17, a large end cap shaft 3 is fixedly connected to a large end cap shaft 5, the large end cap shaft 3 is mounted on one supporting surface of the machine base 13 through a first bearing seat 2, a small end cap shaft 14 is fixedly connected to a small end of the rotary drum 5, the small end cap shaft 14 is mounted on the other supporting surface of the machine base 13 through a second bearing seat 11, one end of the large end cap shaft 3 away from the rotary drum 5 is connected to a differential 1, the large end cap shaft 3 is provided with a light liquid phase overflow hole 4, the small end of the rotary drum 5 is provided with a heavy liquid phase overflow hole 10, the screw 7 is provided in the rotary drum 5, the screw 7 includes a screw spindle 18 and a screw blade 19, the spiral blades 9 are evenly distributed on the spiral mandrel 18 along the axial direction, a liquid blocking plate 16 is arranged on the circumference of one end, close to the small end of the rotary drum 5, of the spiral mandrel 18, the inside of one end, close to the small end of the rotary drum 5, of the spiral 7 is hollow, the hollow inside is communicated with the feeding pipe 12, the middle section of the spiral 7 is provided with a spiral discharging hole 8, and the outer end of the feeding pipe 12 is fixed on the base 13.
A belt pulley is arranged on the differential 1, the large end cover shaft 3, the rotary drum 5 and the small end cover shaft 14 are sequentially connected into a whole, and the high-speed rotation is driven by the belt pulley; the screw 7 is driven by the differential 1 to rotate at a high speed, and a stable rotation speed difference is formed between the screw 7 and the rotary drum 5; the helical blade (19) pushes the heavy liquid phase and the solid phase to the heavy liquid phase overflow hole (10) through the liquid blocking plate (16) under the action of the rotation speed difference and discharges the heavy liquid phase and the solid phase out of the centrifuge, and the light liquid phase is discharged out of the centrifuge through the light liquid phase overflow hole 4 on the large end cover shaft (3) under the centrifugal force, so that the liquid-liquid two-phase separation is realized.
The liquid blocking plate 16 is a circular annular plate, the diameter of the outer circle of the liquid blocking plate is smaller than that of the outer circle of the spiral blade 19, the liquid blocking plate 16, the rotary drum 5 and the large-end cover shaft 3 form a rotary drum inner cavity, and an annular channel is formed between the outer circle of the liquid blocking plate 16 on the spiral mandrel 18 and the inner wall of the rotary drum 5. Thereby pushing the settled solid particles towards the small end of the rotary drum 5 through the helical blades 19 and discharging the heavy liquid phase overflow holes 10.
In practical use, after the mixed liquid to be separated enters the spiral spindle 18 of the horizontal screw centrifuge from the feeding pipe 12, the mixed liquid enters the inner cavity 6 of the rotary drum from the spiral discharging port 8, and under the action of the centrifugal force generated by the high-speed rotation of the rotary drum 5, the mixed liquid is separated into two annular layers according to the density, namely a heavy liquid phase annular layer (containing solid matters) with high density close to the inner wall of the rotary drum 5 and a light liquid phase annular layer with low density close to the spiral spindle 18. Under the condition of continuous feeding of the feeding pipe 12, a heavy liquid phase layer in an inner cavity 6 of the rotary drum turns over an annular channel 9 formed between the outer circle of the liquid blocking plate 16 and the inner wall of the rotary drum 5 under the dual actions of centrifugal liquid pressure and the thrust of the spiral blade 19, enters a conical section of the rotary drum 5, is discharged out of the rotary drum 5 from a heavy liquid phase overflow hole 10 formed in the conical section of the rotary drum 5 through gravity, and is collected and discharged outside through a heavy phase outlet 15 of the housing 17; the light liquid phase layer in the inner cavity 6 of the rotary drum is discharged out of the rotary drum 5 through a light liquid phase overflow hole 4 arranged on the large end cover shaft 3 under the action of centrifugal force, and is collected and discharged outside through a light phase outlet 20 of the housing 17, so that the separation of two mixed liquids with different densities is realized.
The centrifugal machine is simple in structure, convenient to install, maintain and overhaul, suitable for separating two liquids with different densities, and suitable for occasions where solid particles in the liquids do not need to be separated.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to further illustrate the principles of the invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention, which is intended to be protected by the appended claims. The scope of the invention is defined by the claims and their equivalents.
Claims (3)
1. The liquid-liquid separation two-phase horizontal screw centrifuge is characterized by comprising a machine base (13), a cover shell (17) and a feeding pipe (12) which are fixed on the machine base, a rotary drum (5) protected by the cover shell (17) and a material pushing spiral (7), wherein a heavy phase outlet (15) is arranged below one end of the cover shell (17), a light phase outlet (20) is arranged below the other end of the cover shell, the big end of the rotary drum (5) is fixedly connected with a big end cover shaft (3), the big end cover shaft (3) is arranged on one supporting surface of the machine base (13) through a first bearing seat (2), the small end of the rotary drum (5) is fixedly connected with a small end cover shaft (14), the small end cover shaft (14) is arranged on the other supporting surface of the machine base (13) through a second bearing seat (11), one end, far away from the rotary drum (5), of the big end cover shaft (3) is connected with a differential (1), and the big end cover shaft (3) is provided with a light liquid phase overflow hole (4), offer heavy liquid phase overflow hole (10) on the tip of rotary drum (5), set up spiral (7) in rotary drum (5), spiral (7) include spiral mandrel (18) and helical blade (19), helical blade (9) are along axial evenly distributed on spiral mandrel (18), spiral mandrel (18) are close to be equipped with on the circumference of the tip of rotary drum (5) and block liquid board (16), and spiral (7) are close to the inside cavity of the tip of rotary drum (5) one end, the cavity is inside with inlet pipe (12) are linked together, and the interlude of spiral (7) sets up spiral discharge gate (8), the outer end of inlet pipe (12) is fixed on frame (13).
2. The liquid-liquid separation two-phase horizontal decanter centrifuge according to claim 1, characterized in that a belt pulley is mounted on the differential (1), the large end cap shaft (3), the rotary bowl (5) and the small end cap shaft (14) are sequentially connected into a whole, and are driven by the belt pulley to rotate at high speed; the screw (7) is driven to rotate at a high speed through the differential (1), and a stable rotation speed difference is formed between the screw and the rotary drum (5); the helical blade (19) pushes the heavy liquid phase and the solid phase to the heavy liquid phase overflow hole (10) through the liquid blocking plate (16) under the action of the rotation speed difference and discharges the heavy liquid phase and the solid phase out of the centrifuge, and the light liquid phase is discharged out of the centrifuge through the light liquid phase overflow hole 4 on the large end cover shaft (3) under the centrifugal force.
3. The liquid-liquid separation two-phase horizontal decanter centrifuge according to claim 1, wherein said liquid baffle (16) is a circular ring plate having an outer diameter smaller than the outer diameter of said helical blades (19), said liquid baffle (16), said bowl (5) and said large end cap shaft (3) form a bowl cavity, and an annular channel is formed between the outer diameter of said liquid baffle (16) on said helical spindle (18) and the inner wall of said bowl (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110818135.9A CN113399126A (en) | 2021-07-20 | 2021-07-20 | Liquid-liquid separation two-phase horizontal screw centrifuge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110818135.9A CN113399126A (en) | 2021-07-20 | 2021-07-20 | Liquid-liquid separation two-phase horizontal screw centrifuge |
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| Publication Number | Publication Date |
|---|---|
| CN113399126A true CN113399126A (en) | 2021-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110818135.9A Pending CN113399126A (en) | 2021-07-20 | 2021-07-20 | Liquid-liquid separation two-phase horizontal screw centrifuge |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117046619A (en) * | 2023-09-11 | 2023-11-14 | 南京中船绿洲机器有限公司 | Ultra-clean horizontal decanter centrifuge |
| CN119186842A (en) * | 2024-11-29 | 2024-12-27 | 湘潭通用离心机有限公司 | Horizontal spiral discharging sedimentation centrifuge for treating percolate |
-
2021
- 2021-07-20 CN CN202110818135.9A patent/CN113399126A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117046619A (en) * | 2023-09-11 | 2023-11-14 | 南京中船绿洲机器有限公司 | Ultra-clean horizontal decanter centrifuge |
| CN119186842A (en) * | 2024-11-29 | 2024-12-27 | 湘潭通用离心机有限公司 | Horizontal spiral discharging sedimentation centrifuge for treating percolate |
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Application publication date: 20210917 |
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| RJ01 | Rejection of invention patent application after publication |