CN215026286U - Hydrocyclone settling separation equipment - Google Patents
Hydrocyclone settling separation equipment Download PDFInfo
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- CN215026286U CN215026286U CN202120878496.8U CN202120878496U CN215026286U CN 215026286 U CN215026286 U CN 215026286U CN 202120878496 U CN202120878496 U CN 202120878496U CN 215026286 U CN215026286 U CN 215026286U
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- hydrocyclone
- tank body
- settling tank
- rotary flow
- liquid outlet
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Abstract
The utility model relates to the technical field of petrochemical production equipment, in particular to hydrocyclone settling separation equipment, which comprises a settling tank body and a hydrocyclone separator, wherein the settling tank body is longitudinally arranged, the hydrocyclone separator is positioned in the settling tank body, the upper part of the settling tank body is provided with a light phase liquid outlet, and the lower part of the settling tank body is provided with a heavy phase liquid outlet; the hydrocyclone separator comprises a rotary flow passage which is spirally arranged along the longitudinal direction, the spiral radius of the rotary flow passage is gradually reduced from top to bottom, and a plurality of overflow outlets are arranged on the inner side of the rotary flow passage along the spiral direction; the side wall of the middle part of the settling tank body is provided with a feed inlet for the mixed liquid to tangentially flow into the rotary flow passage. The centrifugal separation of the mixed liquid in the hydrocyclone and the sedimentation separation in the sedimentation tank body are combined, and compared with the traditional two sets of independent centrifuges and sedimentation tanks, the device has the advantages that the specification of the device can be greatly reduced, the number of the devices is reduced, and the construction cost is reduced; the mixed liquor enters the settling tank body for settling after centrifugal separation in the hydrocyclone separator, additional transfer is not needed in the middle, and the separation efficiency is greatly improved.
Description
Technical Field
The utility model relates to a petrochemical production equipment technical field especially relates to the liquid-liquid separation equipment of petrochemical solvent extraction in-process, concretely relates to hydrocyclone settlement separation equipment.
Background
In the processes of petrochemical production, sewage treatment and the like, mixed liquids with different densities and components are often required to be separated, such as solvent extraction separation, oil-water separation, oil stain separation and the like.
The separation of mixed liquid usually adopts a sedimentation method, and the sedimentation separation requires huge equipment volume and long retention and sedimentation time. The traditional hydrocyclone is suitable for solid-liquid separation, and for the centrifugal separation of mixed liquid, the centrifugal force needs to be designed strictly according to the density difference of light and heavy phases in the mixed liquid, the operation elasticity is small, and partial light and heavy phases still exist in the centrifuged liquid and the centrifuged liquid needs to be transferred to a sedimentation tank for further sedimentation, so that the existing centrifugal separation technology is mostly applied to gas-liquid and gas-solid separation, and is difficult to be applied to liquid-liquid separation in actual production.
SUMMERY OF THE UTILITY MODEL
There is above-mentioned technical problem to prior art, the utility model provides a hydrocyclone settling separation equipment combines together through centrifugation and subsides, improves liquid-liquid separation efficiency.
In order to achieve the above object, the utility model provides a following technical scheme:
providing hydrocyclone settling separation equipment, which comprises a settling tank body and a hydrocyclone separator, wherein the settling tank body is longitudinally arranged, the hydrocyclone separator is positioned in the settling tank body, a light-phase liquid outlet is formed in the upper part of the settling tank body, a heavy-phase liquid outlet is formed in the lower part of the settling tank body, and settling spaces are reserved between the hydrocyclone separator and the light-phase liquid outlet and between the hydrocyclone separator and the heavy-phase liquid outlet; the hydrocyclone separator comprises a rotary flow passage which is spirally arranged along the longitudinal direction, the spiral radius of the rotary flow passage is gradually reduced from top to bottom, and a plurality of overflow outlets are arranged on the inner side of the rotary flow passage along the spiral direction; and a feeding hole for the mixed liquid to tangentially flow into the rotary flow passage is formed in the side wall of the middle part of the settling tank body.
As a further improvement of the utility model, the cross section of the rotary flow channel is rectangular, and the ratio of the height to the width of the rotary flow channel is 3-4: 1.
As a further improvement of the utility model, the cross section of the flow channel is polygonal or oval.
As a further improvement of the utility model, the overflow outlet is a rectangular hole.
As a further improvement of the utility model, follow the feed inlet along rotatory runner is to first the path of motion of overflow mouth is 0.8 ~ 1.5 m.
As a further improvement of the present invention, the hydrocyclone further comprises a support mechanism, the rotary flow passage is fixed in the interior of the settling tank body by the support mechanism.
As a further improvement, the supporting mechanism includes mutually perpendicular's the backup pad of indulging and horizontal support board, indulge the backup pad with the inner wall looks welded fastening of the settling cask body, the one end of horizontal support board is fixed in indulge the backup pad, the other end of horizontal support board with rotatory runner's the outside is fixed mutually.
As a further improvement, the settling cask is located hydrocyclone with festival section lateral wall between the heavy phase liquid export is equipped with the boundary position measuring mechanism who is used for measuring the boundary line of light and heavy phase, boundary position measuring mechanism's range is 0.5 ~ 1D, and D does the diameter of the settling cask.
As a further improvement of the utility model, the light phase liquid outlet and/or the heavy phase liquid outlet is provided with a valve for adjusting the size of the outlet.
As a further improvement, the feed inlet is provided with a regulating valve for controlling the inflow speed of the mixed liquid.
The utility model has the advantages that:
the utility model discloses a hydrocyclone settling separation equipment, mixed liquid gets into from the feed inlet tangent line with certain speed during the use and sets up in inside hydrocyclone, carry out centrifugal separation according to the mixed fluid weight difference at its rotatory runner, wherein the light fluid flows the preferential subsider body that gets into of the overflow outlet that sets up in the runner inboard, heavy fluid continues centrifugal rotatory flow in the outside of rotatory runner inner wall under the effect of centrifugal force, get into the subsider in the export of rotatory runner at last, after the effect of subsiding, the light fluid is exported from light phase liquid, heavy fluid exports from heavy phase liquid and derives the separation of accomplishing mixed liquid. Compared with the prior art, the utility model discloses a hydrocyclone settling separation equipment has following advantage:
1) the centrifugal separation of the mixed liquid in the hydrocyclone and the sedimentation separation in the sedimentation tank body are combined, and compared with the traditional two sets of independent centrifuges and sedimentation tanks, the device has the advantages that the specification of the device can be greatly reduced, the number of the devices is reduced, and the construction cost is reduced;
2) the mixed liquor enters the settling tank body for settling after centrifugal separation in the hydrocyclone separator, and additional transfer is not needed in the middle, so that the separation efficiency is greatly improved;
3) the spiral radius of the rotary flow channel is gradually reduced from top to bottom, so that the mixed liquid can keep good flow velocity, and the requirement of centrifugal flow velocity can be met under the condition of no external power.
Drawings
FIG. 1 is a schematic structural view of a hydrocyclone separation apparatus in the example.
FIG. 2 is a schematic view of a hydrocyclone in the example.
Fig. 3 is a sectional view taken along a-a in fig. 2.
Fig. 4 is a partially enlarged view of the rotating flow path of fig. 2.
Reference numerals:
a settling tank body 1, a light phase liquid outlet 11, a heavy phase liquid outlet 12 and a feeding hole 13;
a hydrocyclone 2, a rotary flow passage 21 and an overflow port 22;
a supporting mechanism 3 and a boundary position measuring mechanism 4.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The hydrocyclone settling separation apparatus of the embodiment, as shown in fig. 1 to 3, includes a settling tank 1 and a hydrocyclone 2 located in the middle of the settling tank 1, the settling tank 1 is provided with a light phase liquid outlet 11 at the upper part thereof, the settling tank 1 is provided with a heavy phase liquid outlet 12 at the lower part thereof, and settling spaces are left between the hydrocyclone 2 and the light phase liquid outlet 11 and between the hydrocyclone 2 and the heavy phase liquid outlet 12. The hydrocyclone 2 includes a rotating flow passage 21 spirally arranged in a longitudinal direction, and a spiral radius of the rotating flow passage 21 is gradually reduced from top to bottom so that the rotating flow passage 21 rotates in a tapered shape. A plurality of overflow ports 22 are arranged on the inner side of the rotary flow passage 21 along the spiral direction; the side wall of the middle part of the sedimentation tank body 1 is provided with a feed inlet 13 for the mixed liquid to tangentially flow into the rotary flow passage 21.
When the device is used, mixed liquid enters the hydrocyclone 2 arranged in the device from the tangent line of the feeding port 13 at a certain speed, centrifugal separation is carried out in the rotary flow channel 21 according to the gravity difference of the mixed liquid, wherein light fluid flows out from the overflow port 22 arranged on the inner side of the flow channel and preferentially enters the sedimentation tank body 1, heavy fluid continues to centrifugally and rotatably flow along the outer side of the inner wall of the rotary flow channel 21 (namely the side, close to the sedimentation tank body 1, of the inner wall of the rotary flow channel 21) under the action of centrifugal force, finally enters the sedimentation tank body 1 at the outlet of the rotary flow channel 21, light and heavy phase liquid is layered in the sedimentation tank body 1 and is further subjected to sedimentation, the sedimentation tank body 1 is filled with light and heavy phase layered liquid, the light fluid with high separation precision is led out from the light phase liquid outlet 11, the heavy fluid with high separation precision is led out from the heavy phase liquid outlet 12, and the extraction liquid and the raffinate are efficiently separated. Compared with the prior art, the hydrocyclone separation equipment of the embodiment has the following advantages:
1) the centrifugal separation of the mixed liquor in the hydrocyclone 2 and the sedimentation separation in the sedimentation tank body 1 are combined, and compared with the traditional two sets of independent centrifuges and sedimentation tanks, the device has the advantages that the specification of the device can be greatly reduced, the number of the devices is reduced, and the construction cost is reduced;
2) the mixed liquor enters the sedimentation tank body 1 for sedimentation immediately after centrifugal separation in the hydrocyclone 2, and additional transfer is not needed in the middle, so that the separation efficiency is greatly improved;
3) the spiral radius of the rotary flow channel 21 is gradually reduced from top to bottom, so that the mixed liquid can keep good flow velocity, and the requirement of centrifugal flow velocity can be met under the condition of no external power.
In this embodiment, the cross section of the rotating flow channel 21 is rectangular, and is similar to a groove-shaped tube structure, and the ratio of the height to the width is 3-4: 1. Or in practice the cross-section of the flow channel is changed to be polygonal or elliptical.
In this embodiment, the overflow outlet 22 shown in fig. 4 is a rectangular hole, and the number and specification of the overflow holes are determined according to the proportion and the weight difference of the light fluid and the heavy fluid in the mixed liquid. The traveling path from the feed port 13 to the first overflow port 22 along the rotary flow channel 21 is 0.8 to 1.5 m.
In this embodiment, the hydrocyclone 2 further comprises a support mechanism 3, and the rotary flow passage 21 is fixed inside the settling tank 1 through the support mechanism 3. The supporting mechanism 3 comprises a vertical supporting plate and a horizontal supporting plate which are perpendicular to each other, the vertical supporting plate is welded and fixed with the inner wall of the sedimentation tank body 1, one end of the horizontal supporting plate is fixed on the vertical supporting plate, and the other end of the horizontal supporting plate is fixed with the outer side of the rotary flow channel 21. The stability of the equipment in the operation process is ensured.
In this embodiment, a boundary position measuring mechanism 4 for measuring a boundary line between the heavy phase and the light phase is disposed on a section side wall of the settling tank 1 between the hydrocyclone 2 and the heavy phase outlet 12, the range of the boundary position measuring mechanism 4 is 0.5-1D, and D is the diameter of the settling tank 1. The boundary level measuring mechanism 4 adopts the existing sensor in the market, two mounting holes are longitudinally formed in the side wall of the sedimentation tank body 1, and the position of a liquid level interface between the two mounting holes can be detected after the sensor is mounted in the mounting holes. The light phase liquid outlet 11 and/or the heavy phase liquid outlet 12 are/is provided with a valve for adjusting the size of the outlet, and the interface of the light phase liquid and the heavy phase liquid is adjusted mainly by adjusting the size of the heavy phase liquid outlet 12.
In this embodiment, the feed port 13 is provided with an adjusting valve for controlling the inflow speed of the mixed liquid, or the flow rate of the mixed liquid can be adjusted by the liquid pump and other power. In practice, the adaptability of the fluid property is improved by changing the speed of the fluid entering the hydrocyclone 2 according to the density difference of the mixed liquid to be separated. Furthermore, the adaptability to production load and different fluid compositions is improved by changing the equipment specification according to the composition and flow of the mixed liquid to be separated.
In practical application, the continuous operation can be realized by changing the specification of the equipment according to the volume distribution of the extraction liquid and the raffinate, namely the heavy phase and the light phase in different extraction processes, proper temperature and kinetic energy (pressure energy of a pump or front-end equipment) are controlled to enter the equipment at the flow speed of 12-20 m/s according to the conditions of the proportion of the light phase fluid and the heavy phase fluid of the mixed liquid to be separated, the heavy phase fluid is controlled to be pumped out from the lower part of the equipment through a boundary position, and the light phase fluid flows out from the top part of the equipment.
Application example:
in the solvent refining production process of waste lubricating oil regeneration, the mixed solution of the extraction liquid and the raffinate after the waste lubricating oil and the solvent (NMP) are dissolved is controlled within the range of 60-80 ℃, and the mixed solution enters the hydrocyclone 2 at the flow rate of 12-20 m/s through the conveying of a pump. The heavy phase fluid (extract) is extracted under the control of the lower boundary position, and the light phase fluid (refined liquid) flows out from the top.
Under the condition that the fluid in the settling tank body 1 stays for 15-20 min, the content of a heavy phase (extract) in the light phase (refined liquid) flowing out upwards is about 5%, and the production requirements can be met.
It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. A hydrocyclone settling separation device is characterized in that: the sedimentation tank comprises a sedimentation tank body and a hydrocyclone separator, wherein the sedimentation tank body is longitudinally arranged, the hydrocyclone separator is positioned in the sedimentation tank body, a light-phase liquid outlet is formed in the upper part of the sedimentation tank body, a heavy-phase liquid outlet is formed in the lower part of the sedimentation tank body, and sedimentation spaces are reserved between the hydrocyclone separator and the light-phase liquid outlet and between the hydrocyclone separator and the heavy-phase liquid outlet;
the hydrocyclone separator comprises a rotary flow passage which is spirally arranged along the longitudinal direction, the spiral radius of the rotary flow passage is gradually reduced from top to bottom, and a plurality of overflow outlets are arranged on the inner side of the rotary flow passage along the spiral direction; and a feeding hole for the mixed liquid to tangentially flow into the rotary flow passage is formed in the side wall of the middle part of the settling tank body.
2. The hydrocyclone separation apparatus according to claim 1, characterized in that: the cross section of the rotating flow channel is rectangular, and the ratio of the height to the width of the rotating flow channel is 3-4: 1.
3. The hydrocyclone separation apparatus according to claim 1, characterized in that: the cross section of the flow channel is polygonal or elliptical.
4. The hydrocyclone separation apparatus according to claim 1, characterized in that: the overflow outlet is a rectangular hole.
5. The hydrocyclone separation apparatus according to claim 1, characterized in that: and the travel path from the feed port to the first overflow port along the rotary flow channel is 0.8-1.5 m.
6. The hydrocyclone separation apparatus according to claim 1, characterized in that: the hydrocyclone separator also comprises a supporting mechanism, and the rotary flow channel is fixed in the settling tank body through the supporting mechanism.
7. The hydrocyclone separation apparatus according to claim 6, wherein: the supporting mechanism comprises a longitudinal supporting plate and a transverse supporting plate which are perpendicular to each other, the longitudinal supporting plate and the inner wall of the sedimentation tank body are welded and fixed, one end of the transverse supporting plate is fixed on the longitudinal supporting plate, and the other end of the transverse supporting plate is fixed on the outer side of the rotary flow channel.
8. The hydrocyclone separation apparatus according to claim 1, characterized in that: and a boundary position measuring mechanism for measuring a boundary line of the light phase and the heavy phase is arranged on the side wall of a section, which is positioned between the hydrocyclone and the heavy phase liquid outlet, of the settling tank body, the range of the boundary position measuring mechanism is 0.5-1D, and D is the diameter of the settling tank body.
9. The hydrocyclone separation apparatus according to claim 1, characterized in that: and the light phase liquid outlet and/or the heavy phase liquid outlet are/is provided with a valve for adjusting the size of the outlet.
10. The hydrocyclone separation apparatus according to claim 1, characterized in that: the feed inlet is provided with a regulating valve for controlling the inflow speed of the mixed liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120878496.8U CN215026286U (en) | 2021-04-27 | 2021-04-27 | Hydrocyclone settling separation equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120878496.8U CN215026286U (en) | 2021-04-27 | 2021-04-27 | Hydrocyclone settling separation equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215026286U true CN215026286U (en) | 2021-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120878496.8U Active CN215026286U (en) | 2021-04-27 | 2021-04-27 | Hydrocyclone settling separation equipment |
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|---|---|
| CN (1) | CN215026286U (en) |
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2021
- 2021-04-27 CN CN202120878496.8U patent/CN215026286U/en active Active
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