CN212246908U - A regeneration processing system for waste mineral oil - Google Patents
A regeneration processing system for waste mineral oil Download PDFInfo
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- CN212246908U CN212246908U CN202020968937.9U CN202020968937U CN212246908U CN 212246908 U CN212246908 U CN 212246908U CN 202020968937 U CN202020968937 U CN 202020968937U CN 212246908 U CN212246908 U CN 212246908U
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Abstract
A regeneration treatment system for waste mineral oil comprises a flash tower, a first heating furnace, a primary distillation tower, a second heating furnace and a secondary distillation tower which are arranged in sequence; the flash tower is connected with a waste mineral oil inlet pipe, the top of the flash tower is provided with a flash gas outlet pipe, and the flash gas outlet pipe is connected with an oil-water separator; the bottom of the flash tower is provided with a flash oil outlet, the flash oil outlet is connected with a first oil pipeline and a first oil pump, and the output end of the first oil pipeline is connected with the first heating furnace. The utility model discloses a branch tower extraction uses as far as possible not cracking temperature 340 degrees below and divides to blow about the heating 370 degrees, has reduced the molecule schizolysis phenomenon in a large number, and this process technology can improve yield hundredth to three with this raw materials.
Description
Technical Field
The utility model relates to a waste mineral oil regeneration field, concretely relates to regeneration processing system for waste mineral oil.
Background
In most of the regeneration process technologies of waste mineral oil, the waste mineral oil is heated once and enters a fractionating tower at high temperature for fractionation, so that the oil molecules are cracked to generate a large amount of non-condensable gas and fuel oil components, and the yield of the lubricating oil with high viscosity is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a regeneration processing system for waste mineral oil to above-mentioned defect exactly.
The utility model comprises a flash tower, a first heating furnace, a primary distillation tower, a second heating furnace and a secondary distillation tower which are arranged in sequence;
the flash tower is connected with a waste mineral oil inlet pipe, the top of the flash tower is provided with a flash gas outlet pipe, and the flash gas outlet pipe is connected with an oil-water separator; a flash evaporation oil outlet is formed in the bottom of the flash evaporation tower, a first oil pipeline and a first oil pump are connected to the flash evaporation oil outlet, and the output end of the first oil pipeline is connected with the first heating furnace;
the outlet end of the first heating furnace is connected to the feed inlet of the primary distillation tower through a pipeline, the top of the primary distillation tower is connected with an oil-gas separator through a pipeline, the bottom of the primary distillation tower is connected with a second oil pipeline and a second oil pump, and the output end of the second oil pipeline is connected with the second heating furnace;
the outlet end of the second heating furnace is connected to the secondary distillation tower through a pipeline, a first heat exchanger and a second heat exchanger are respectively arranged at the lower part and the upper part of the secondary distillation tower, and the top of the secondary distillation tower is connected to the oil-gas separator through a pipeline;
the bottom of the secondary distillation tower is connected with an oil return pipeline, a third heat exchanger and a third oil pump are arranged on the oil return pipeline, and the tail end of the oil return pipeline is connected to the bottom of the flash tower.
The heating temperature of the first heating furnace is 340 ℃.
The heating temperature of the second heating furnace is 370 ℃.
The oil-gas separator is connected with a base oil storage tank.
Utility model's advantage is: in the regeneration process technology of waste mineral oil, most processes are that high temperature is heated once and enters a fractionating tower for fractionation to cause overtemperature, so that oil molecules are cracked to produce a large amount of non-condensable gas and fuel oil components, so that the yield of high-viscosity lubricating oil is reduced, and in order to improve the yield of lubricating oil base oil in waste oil, through multiple research and development and reconstruction, the tower separation extraction is adopted to use the non-cracking temperature of below 340 ℃ and the blowing heating of about 370 ℃ as much as possible, so that the molecular cracking phenomenon is greatly reduced, and the yield of the same raw material can be improved by one percent to three percent by using the process technology.
Description of the drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
As shown in the attached drawing, the utility model comprises a flash tower 1, a first heating furnace 2, a primary distillation tower 3, a second heating furnace 4 and a secondary distillation tower 5 which are arranged in sequence;
the flash tower 1 is connected with a waste mineral oil inlet pipe 6, the top of the flash tower 1 is provided with a flash evaporation gas outlet pipe 7, and the flash evaporation gas outlet pipe 7 is connected with an oil-water separator 8; a flash oil outlet is formed in the bottom of the flash tower 1 and is connected with a first oil pipeline 9 and a first oil pump 10, and the output end of the first oil pipeline 9 is connected with the first heating furnace 2;
the outlet end of the first heating furnace 2 is connected to the feed inlet of the primary distillation tower 3 through a pipeline, the top of the primary distillation tower 3 is connected with an oil-gas separator 11 through a pipeline, the bottom of the primary distillation tower 3 is connected with a second oil pipeline 12 and a second oil pump 13, and the output end of the second oil pipeline 12 is connected with the second heating furnace 4;
the outlet end of the second heating furnace 4 is connected to the secondary distillation tower 5 through a pipeline, the lower part and the upper part of the secondary distillation tower 5 are respectively provided with a first heat exchanger 14 and a second heat exchanger 15, and the top of the secondary distillation tower 5 is connected to the oil-gas separator 11 through a pipeline;
the bottom of the secondary distillation tower 5 is connected with an oil return pipeline 16, a third heat exchanger 17 and a third oil pump 18 are arranged on the oil return pipeline 16, and the tail end of the oil return pipeline 16 is connected to the bottom of the flash tower 1.
The heating temperature of the first heating furnace 2 is 340 ℃.
The heating temperature of the second heating furnace 4 is 370 ℃.
The oil-gas separator 11 is connected with a base oil storage tank.
The working principle is as follows: waste mineral oil enters a flash tower through a waste mineral oil inlet pipe to be flashed and then is discharged from a top flash evaporation gas outlet pipe, an oil-water separator on the flash evaporation gas outlet pipe separates and recovers oil and water, the bottom of the flash tower inputs the residual oil into a first heating furnace through a first oil pipeline and a first oil pump to be heated to 340 ℃ and then sends the oil and the water into a primary distillation tower, the top of the primary distillation tower separates the oil and the gas through an oil-gas separator connected with the primary distillation tower through a pipeline, the bottom of the primary distillation tower sends the residual oil to a second heating furnace through a second oil pipeline and a second oil pump to be blown and heated to 370 ℃ and then sends the residual oil to a secondary distillation tower, the top of the secondary distillation tower is connected to the oil-gas separator through a pipeline to separate the oil and the gas, the bottom of the secondary distillation tower returns the residual oil to the flash tower after being properly cooled through an oil return pipeline, a third heat exchanger and a, the yield is improved. The sub-tower extraction is adopted to use the non-cracking temperature of below 340 ℃ and the sub-blowing heating temperature of about 370 ℃ as much as possible, so that the molecular cracking phenomenon is greatly reduced, and the yield of the same raw material can be improved by one percent to three percent by using the process technology.
Claims (4)
1. A regeneration treatment system for waste mineral oil is characterized by comprising a flash tower (1), a first heating furnace (2), a primary distillation tower (3), a second heating furnace (4) and a secondary distillation tower (5) which are arranged in sequence;
the waste mineral oil inlet pipe (6) is connected to the flash tower (1), the flash gas outlet pipe (7) is arranged at the top of the flash tower (1), and the oil-water separator (8) is connected to the flash gas outlet pipe (7); the bottom of the flash tower (1) is provided with a flash oil outlet, the flash oil outlet is connected with a first oil pipeline (9) and a first oil pump (10), and the output end of the first oil pipeline (9) is connected with the first heating furnace (2);
the outlet end of the first heating furnace (2) is connected to the feed inlet of the primary distillation tower (3) through a pipeline, the top of the primary distillation tower (3) is connected with an oil-gas separator (11) through a pipeline, the bottom of the primary distillation tower (3) is connected with a second oil pipeline (12) and a second oil pump (13), and the output end of the second oil pipeline (12) is connected with the second heating furnace (4);
the outlet end of the second heating furnace (4) is connected to the secondary distillation tower (5) through a pipeline, a first heat exchanger (14) and a second heat exchanger (15) are respectively arranged at the lower part and the upper part of the secondary distillation tower (5), and the top of the secondary distillation tower (5) is connected to the oil-gas separator (11) through a pipeline;
the bottom of the secondary distillation tower (5) is connected with an oil return pipeline (16), a third heat exchanger (17) and a third oil pump (18) are arranged on the oil return pipeline (16), and the tail end of the oil return pipeline (16) is connected to the bottom of the flash tower (1).
2. The recycling system for waste mineral oil according to claim 1, wherein said first heating furnace (2) is heated at 340 ℃.
3. The recycling system for waste mineral oil according to claim 1, wherein the heating temperature of said second heating furnace (4) is 370 ℃.
4. The recycling system for waste mineral oil according to claim 1, wherein the oil separator (11) is connected with a base oil storage tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020968937.9U CN212246908U (en) | 2020-06-01 | 2020-06-01 | A regeneration processing system for waste mineral oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020968937.9U CN212246908U (en) | 2020-06-01 | 2020-06-01 | A regeneration processing system for waste mineral oil |
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| CN212246908U true CN212246908U (en) | 2020-12-29 |
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| CN202020968937.9U Active CN212246908U (en) | 2020-06-01 | 2020-06-01 | A regeneration processing system for waste mineral oil |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114854484A (en) * | 2022-06-02 | 2022-08-05 | 河北车迪石油化工有限公司 | Waste mineral oil regeneration process and system |
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2020
- 2020-06-01 CN CN202020968937.9U patent/CN212246908U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114854484A (en) * | 2022-06-02 | 2022-08-05 | 河北车迪石油化工有限公司 | Waste mineral oil regeneration process and system |
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