CN218115361U - High-yield solvent deasphalting device - Google Patents
High-yield solvent deasphalting device Download PDFInfo
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- CN218115361U CN218115361U CN202222369142.8U CN202222369142U CN218115361U CN 218115361 U CN218115361 U CN 218115361U CN 202222369142 U CN202222369142 U CN 202222369142U CN 218115361 U CN218115361 U CN 218115361U
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Abstract
The utility model discloses a high-yield solvent deasphalting device, which relates to the technical field of solvent deasphalting devices and comprises a tower body, wherein the middle part of the side wall of the tower body is provided with a slag oil pipe and a solvent pipe which are arranged side by side up and down; the tower body is characterized by also comprising distributors, wherein the two distributors are erected in parallel at the upper part and the lower part in the middle of the inner cavity of the tower body and are arranged oppositely, the two distributors are respectively communicated with the slag oil pipe and the solvent pipe, and a plurality of herringbone baffles which are arranged in a staggered manner at the upper part and the lower part are arranged in the inner cavity of the tower body between the two distributors; the distributor is in a fishbone shape and comprises a main pipe and a plurality of branch pipes; the bottom of the tower body is funnel-shaped, and a stirring and conveying assembly is arranged in the tower body; the stirring and conveying assembly comprises a stirring shaft vertically erected at the central shaft at the bottom of the inner cavity of the tower body and a motor arranged at the bottom of the tower body, the working end of the motor is in transmission connection with the lower end of the stirring shaft, and conical helical ribbon blades are fixedly arranged on the stirring shaft; the herringbone baffle plate in the device can ensure that the residual oil and the solvent are fully mixed so as to improve the utilization rate of the solvent.
Description
Technical Field
The utility model relates to a solvent deasphalting technical field, concretely relates to high yield solvent deasphalting device.
Background
The solvent deasphalting process uses atmospheric and vacuum residual oil as raw material, and utilizes the alkane solvents of propane, butane and pentane, etc. to extract and separate deasphalted oil (DAO) from residual oil according to the similar compatible principle, the deasphalted oil (DAO) can be used as raw material for catalytic cracking or hydrocracking, also can be used for producing lubricating oil base oil, the residual oil after oil removal is also called deoiled asphalt (DOA), the deoiled asphalt (DOA) mainly comprises asphaltene, colloid and heavy metal impurities, and the deoiled asphalt (DOA) is the most important raw material for producing road asphalt and building asphalt.
The existing solvent deasphalting device has various defects: (1) The solvent and the residual oil are mixed unevenly, the solvent utilization rate is low, and the yield of deasphalted oil (DAO) is low; and (2) the deoiled asphalt has high density and is difficult to discharge.
Chinese patent CN208791571U discloses a solvent deasphalting device for base oil production, comprising a reaction tower, wherein two filter screens are fixedly connected on the inner wall of the reaction tower, and the outer wall of the reaction tower is positioned between the two filter screens, and a raw material pipe and a solvent pipe are respectively and fixedly connected, one ends of the raw material pipe and the solvent pipe extend to the inside of the reaction tower, and are both fixedly connected with a flow divider, and the two flow dividers are symmetrically arranged, the bottom of the side wall of the reaction tower is fixedly connected with a deoiled asphalt outlet, one end of the deoiled asphalt outlet extends to the outside of the reaction tower, and the end of the deoiled asphalt outlet far away from the reaction tower is closed; the cross sectional areas of the two flow dividers of the device are larger, so that the reverse contact flow of the solvent and the residual oil is seriously influenced, and the extraction operation is not favorably carried out; in addition, because the density of the deoiled asphalt is high, the deoiled asphalt is difficult to be pumped out of the reaction tower by the principle of negative pressure.
Therefore, it is urgently needed to develop a new solvent deasphalting device.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a high yield solvent deasphalting device aiming at the defects existing in the prior art.
The technical scheme of the utility model is that: a high-yield solvent deasphalting device comprises a tower body, wherein the top of the tower body is provided with a deasphalted oil outlet, the middle part of the side wall of the tower body is provided with a residual oil pipe and a solvent pipe which are arranged side by side up and down, and the bottom of the tower body is provided with a deasphalting oil outlet; the distributor is erected in the middle of the inner cavity of the tower body in an up-and-down parallel manner and is arranged oppositely, the distributor and the inner cavity of the tower body are respectively communicated with the slag oil pipe and the solvent pipe, and a plurality of herringbone baffles which are arranged in an up-and-down staggered manner are arranged in the inner cavity of the tower body between the distributor and the solvent pipe; the distributor is in a fishbone shape and comprises a main pipe and a plurality of branch pipes; the main pipe is communicated with the slag oil pipe or the solvent pipe, and a plurality of shunting holes are uniformly distributed on the branch pipe;
the bottom of the tower body is funnel-shaped, and a stirring and conveying assembly is arranged in the tower body; the stirring conveying assembly comprises a stirring shaft vertically erected at the central shaft of the bottom of the inner cavity of the tower body and a motor arranged at the bottom of the tower body, the working end of the motor is in transmission connection with the lower end of the stirring shaft, a conical helical ribbon blade is fixedly arranged on the stirring shaft, and the conveying direction of the conical helical ribbon blade is consistent with the settling direction of the deoiled asphalt.
Preferably, the tower further comprises a heating pipe and a conical plate, wherein the heating pipe is in a spiral shape, is erected at the upper part of the inner cavity of the tower body, and has an inlet at the lower part and an outlet at the upper part; the conical plate is fixedly arranged on the inner wall of the tower body below the heating pipe, and a through hole is formed in the center of the conical plate; and a heavy deasphalted oil outlet is formed in the side wall of the tower body and is positioned above the conical plate.
Preferably, the outer edge of the conical helical ribbon blade is attached to the inner wall of the bottom of the tower body.
Preferably, the conical helical ribbon blades are fixedly connected with the stirring shaft through a plurality of horizontal connecting rods.
Preferably, a horizontal supporting rod is erected above the conical helical ribbon blades at the bottom of the inner cavity of the tower body, and the upper end of the stirring shaft is rotatably arranged at the center of the supporting rod.
Compared with the prior art, the utility model, have following advantage:
the herringbone baffle in the device can ensure that residual oil and a solvent are fully mixed so as to improve the utilization rate of the solvent and further improve the yield of deasphalted oil; gaps are left among the branch pipes of the fishbone distributor, which do not influence the reverse contact flow of the solvent and the residual oil and are beneficial to the extraction operation; the conical helical ribbon blade has the stirring function and the conveying function on the deoiled asphalt, and continuously turns the deoiled asphalt settled at the bottom of the tower, so that the deoiled asphalt is kept in a loose state, and the deoiled asphalt is discharged.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic view of the dispenser.
In the figure: 1. the device comprises a tower body, 2, a deasphalted oil outlet, 3, a slag oil pipe, 4, a solvent pipe, 5, a deasphalted oil outlet, 6, a distributor, 601, a main pipe, 602, a branch pipe, 7, a herringbone baffle, 8, a stirring shaft, 9, a motor, 10, a conical helical ribbon blade, 11, a connecting rod, 12, a supporting rod, 13, a heating pipe, 14, a conical plate, 15 and a heavy deasphalted oil outlet.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
Example one
Referring to fig. 1-2, a high-yield solvent deasphalting apparatus comprises a tower body 1, wherein the top of the tower body 1 is provided with a deasphalted oil outlet 2, the middle part of the side wall of the tower body is provided with a residual oil pipe 3 and a solvent pipe 4 which are arranged side by side up and down, and the bottom of the tower body is provided with a deasphalting oil outlet 5; the tower body is characterized by further comprising distributors 6, wherein the two distributors 6 are erected in parallel at the upper part and the lower part in the middle of the inner cavity of the tower body 1 and are arranged oppositely, the two distributors are respectively communicated with the residual oil pipe 3 and the solvent pipe 4, and a plurality of herringbone baffles 7 which are arranged in a staggered manner at the upper part and the lower part are arranged in the inner cavity of the tower body 1 between the two distributors; the distributor 6 is in a fishbone shape and comprises a main pipe 601 and a plurality of branch pipes 602; the main pipe 601 is communicated with the residual oil pipe 3 or the solvent pipe 4, and a plurality of shunting holes are uniformly distributed on the branch pipe 602;
the bottom of the tower body 1 is funnel-shaped, and a stirring and conveying assembly is arranged in the tower body; the stirring and conveying assembly comprises a stirring shaft 8 vertically erected at the central shaft at the bottom of the inner cavity of the tower body 1 and a motor 9 installed at the bottom of the tower body 1, the working end of the motor 9 is in transmission connection with the lower end of the stirring shaft 8, a conical helical ribbon blade 10 is fixedly installed on the stirring shaft 8, and the conveying direction of the conical helical ribbon blade 10 is consistent with the settling direction of the deoiled asphalt.
When in use, residual oil and solvent enter the tower body 1 through the residual oil pipe 3 and the solvent pipe 4 respectively, the contact area of the residual oil and the solvent is increased after the residual oil and the solvent are distributed by the distributor 6, and the residual oil and the solvent reversely contact and flow in the tower due to larger specific gravity difference; the residual oil is more dispersed after being separated by the herringbone baffle 7 and can be fully mixed with a solvent for extraction, and the deoiled asphalt is settled at the bottom of the tower body 1; when the oil-removed asphalt needs to be discharged, the motor 9 is started to drive the conical helical ribbon blade 10 to rotate, and the conical helical ribbon blade 10 conveys the oil-removed asphalt downwards while stirring the oil-removed asphalt and finally discharges the oil-removed asphalt from the oil-removed asphalt outlet 5.
The herringbone baffle 7 in the device can ensure that residual oil and a solvent are fully mixed so as to improve the utilization rate of the solvent and further improve the yield of deasphalted oil; gaps are left among the branch pipes 602 of the fishbone distributor 6, which do not influence the reverse contact flow of the solvent and the residual oil and are beneficial to the extraction operation; the conical helical ribbon blade 10 not only has the stirring function but also has the conveying function to the deoiled asphalt, and the deoiled asphalt settled on the bottom of the tower is continuously stirred, so that the deoiled asphalt is kept in a loose state, and the discharge of the deoiled asphalt is facilitated.
Example two
As a preferred embodiment of the present invention, the heating pipe 13 and the tapered plate 14 are added to the present embodiment on the basis of the first embodiment, specifically:
the embodiment also comprises a heating pipe 13 and a conical plate 14, wherein the heating pipe 13 is in a spiral shape and is erected at the upper part of the inner cavity of the tower body 1, the inlet of the heating pipe is arranged at the lower part, and the outlet of the heating pipe is arranged at the upper part; the conical plate 14 is fixedly arranged on the inner wall of the tower body 1 below the heating pipe 13, and a through hole is formed in the center of the conical plate; a heavy deasphalted oil outlet 15 is arranged on the side wall of the tower body 1, and the heavy deasphalted oil outlet 15 is positioned above the conical plate 14.
After extraction, the deoiled asphalt is settled downwards, other liquid as an extracting solution flows upwards through the through holes of the conical plate 14, the heavy deasphalted oil is separated by raising the temperature of the extracting solution by the heating pipe 13, and the heavy deasphalted oil is discharged from a heavy deasphalted oil outlet 15.
The heating pipe 13 is spirally arranged to increase the contact area with the extracting solution, which is helpful for heating the extracting solution sufficiently.
EXAMPLE III
As an embodiment of the present invention, the structure of the stirring and conveying assembly is optimized on the basis of the second embodiment, specifically as follows:
in this embodiment, the outer edge of the conical helical ribbon blade 10 is attached to the inner wall of the bottom of the tower body 1, and the conical helical ribbon blade 10 can effectively scrape the deoiled asphalt on the inner wall of the tower bottom when rotating.
Conical spiral shell area blade 10 and (mixing) shaft 8 between through many horizontally connecting rod 11 fixed connection, connecting rod 11 also can stir deoiled pitch when rotating to further promote the bulk degree of deoiled pitch.
In addition, a horizontal support rod 12 is erected at the bottom of the inner cavity of the tower body 1 above the conical helical ribbon blades 10, and the upper end of the stirring shaft 8 is rotatably installed at the center of the support rod 12.
The present invention is not limited to the above-described embodiments, and various changes can be made within the knowledge range of those skilled in the art without departing from the spirit of the present invention, and the changed contents still belong to the protection scope of the present invention.
Claims (5)
1. A high-yield solvent deasphalting device comprises a tower body, wherein the top of the tower body is provided with a deasphalted oil outlet, the middle part of the side wall of the tower body is provided with a residual oil pipe and a solvent pipe which are arranged side by side up and down, and the bottom of the tower body is provided with a deasphalted oil outlet; the method is characterized in that: the distributor is erected in the middle of the inner cavity of the tower body in an up-and-down parallel manner and is arranged oppositely, the distributor and the inner cavity of the tower body are respectively communicated with the slag oil pipe and the solvent pipe, and a plurality of herringbone baffles which are arranged in an up-and-down staggered manner are arranged in the inner cavity of the tower body between the distributor and the solvent pipe; the distributor is in a fishbone shape and comprises a main pipe and a plurality of branch pipes; the main pipe is communicated with the slag oil pipe or the solvent pipe, and a plurality of shunting holes are uniformly distributed on the branch pipe;
the bottom of the tower body is funnel-shaped, and a stirring and conveying assembly is arranged in the tower body; the stirring conveying assembly comprises a stirring shaft vertically erected at the central shaft of the bottom of the inner cavity of the tower body and a motor arranged at the bottom of the tower body, the working end of the motor is in transmission connection with the lower end of the stirring shaft, a conical helical ribbon blade is fixedly arranged on the stirring shaft, and the conveying direction of the conical helical ribbon blade is consistent with the settling direction of deoiled asphalt.
2. The high-yield solvent deasphalting apparatus according to claim 1, wherein: the heating pipe is spiral and is erected at the upper part of the inner cavity of the tower body, the inlet of the heating pipe is arranged below the tower body, and the outlet of the heating pipe is arranged above the tower body; the conical plate is fixedly arranged on the inner wall of the tower body below the heating pipe, and a through hole is formed in the center of the conical plate; and a heavy deasphalted oil outlet is formed in the side wall of the tower body and is positioned above the conical plate.
3. The high-yield solvent deasphalting apparatus according to claim 1, wherein: the outer edge of the conical helical ribbon blade is attached to the inner wall of the bottom of the tower body.
4. The high-yield solvent deasphalting apparatus according to claim 1, wherein: the conical helical ribbon blades are fixedly connected with the stirring shaft through a plurality of horizontal connecting rods.
5. The high-yield solvent deasphalting apparatus according to claim 1, wherein: the bottom of the inner cavity of the tower body is positioned above the conical helical ribbon blades, a horizontal supporting rod is erected, and the upper end of the stirring shaft is rotatably arranged at the center of the supporting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222369142.8U CN218115361U (en) | 2022-09-07 | 2022-09-07 | High-yield solvent deasphalting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222369142.8U CN218115361U (en) | 2022-09-07 | 2022-09-07 | High-yield solvent deasphalting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218115361U true CN218115361U (en) | 2022-12-23 |
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ID=84529300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222369142.8U Active CN218115361U (en) | 2022-09-07 | 2022-09-07 | High-yield solvent deasphalting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218115361U (en) |
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2022
- 2022-09-07 CN CN202222369142.8U patent/CN218115361U/en active Active
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