CN217578777U - Feeding device for improving quality and yield of anthracene oil - Google Patents
Feeding device for improving quality and yield of anthracene oil Download PDFInfo
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- CN217578777U CN217578777U CN202222253834.6U CN202222253834U CN217578777U CN 217578777 U CN217578777 U CN 217578777U CN 202222253834 U CN202222253834 U CN 202222253834U CN 217578777 U CN217578777 U CN 217578777U
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Abstract
The utility model discloses a feeding device for improving the quality and yield of anthracene oil, belonging to the technical field of coal tar distillation production; the feeding device comprises a reduced pressure distillation tower; the bottom of the vacuum distillation tower is connected with a tower bottom circulating pipeline; the vacuum distillation tower is connected with a fraction feeding pipeline; the fraction feeding pipeline is connected with the tower bottom circulating pipeline through a communicating pipeline; the side part of the reduced pressure distillation tower is connected with an anthracene oil extraction pipeline; the anthracene oil extraction pipeline is connected with a temperature sensor and a first electromagnetic valve; the communicating pipeline is provided with a second electromagnetic valve; the temperature sensor is connected with the controller, and the controller is respectively connected with the first electromagnetic valve and the second electromagnetic valve; the device improves the quality and the extraction rate of the anthracene oil fractionated from the side line of the reduced pressure distillation tower.
Description
Technical Field
The utility model belongs to the technical field of coal tar distillation production, specifically be a feed arrangement who improves anthracene oil quality and yield.
Background
The coal tar can be divided into low-temperature coal tar, medium-temperature coal tar and high-temperature coal tar according to the carbonization temperature, the coal tar obtained in coke production belongs to the high-temperature coal tar, and is one of coke oven gas purification products condensed and separated in the process of cooling crude gas, the coal tar is generally used as a raw material for processing and refining to prepare various chemical products, and can also be directly utilized, and the coal tar needs to be distilled by using distillation equipment in the production and processing process.
Currently, the existing coal tar distillation process can be divided into three major types, namely vacuum distillation, atmospheric distillation and atmospheric distillation, in terms of the operating pressure of the distillation tower. The atmospheric and vacuum distillation process flow consists of atmospheric dehydration, atmospheric preliminary distillation and vacuum fractionation. The raw material crude tar is dehydrated of water and light oil fraction in a dehydrating tower under normal pressure, the anhydrous tar at the bottom of the dehydrating tower is heated by a tubular furnace and then enters a distillation tower, and the separation is carried out in the tower under normal pressure. Distillation of coal tar generally can separate fractions such as light oil, phenol oil, wash oil, naphthalene oil, anthracene oil, pitch, etc., wherein the phenol oil fraction is distilled from the top of a main tower, phenol, naphthalene and wash three-mixed fraction (also called as three-mixed oil) is cut from the side line of the tower, and the distillate is extracted from the bottom of the tower to a vacuum distillation tower to further separate anthracene oil and pitch. The phenol oil fraction is extracted from the top of the reduced pressure distillation tower, the first anthracene oil fraction is extracted from the side line of the tower, the second anthracene oil fraction is extracted from the bottom of the tower, and the heat required by distillation of the reduced pressure distillation tower is provided by circularly heating the second anthracene oil at the bottom of the tower in a tubular furnace. In the actual production process, the temperature of the anthracene oil fraction extracted from the side line cannot reach the extraction temperature, so that the quality and the yield of the anthracene oil extracted from the side line are reduced.
SUMMERY OF THE UTILITY MODEL
The utility model overcomes prior art's is not enough, provides a feed arrangement who improves anthracene oil quality and yield.
In order to achieve the above purpose, the present invention is achieved by the following technical solutions.
A feeding device for improving the quality and yield of anthracene oil comprises a reduced pressure distillation tower; the bottom of the vacuum distillation tower is connected with a tower bottom circulating pipeline; the vacuum distillation tower is connected with a fraction feeding line; the fraction feeding pipeline is connected with the tower bottom circulating pipeline through a communicating pipeline; the side part of the reduced pressure distillation tower is connected with an anthracene oil extraction pipeline; the anthracene oil extraction pipeline is connected with a temperature sensor and a first electromagnetic valve; the communication pipeline is provided with a second electromagnetic valve; the temperature sensor is connected with a controller, and the controller is respectively connected with the first electromagnetic valve and the second electromagnetic valve.
Further, the fraction feed line is provided with a control valve.
Further, the tower bottom circulation pipeline is provided with a circulation pump and a control valve.
Further, the controller is a PLC controller.
The utility model discloses produced beneficial effect for prior art does:
the utility model discloses set up the UNICOM pipeline between fraction feedstock line and circulating line at the bottom of the tower, the anthracene oil temperature of anthracene oil extraction pipeline extraction surpasss or is less than control temperature, then close the solenoid valve of anthracene oil extraction pipeline through the controller, open the solenoid valve on the UNICOM pipeline, two anthracene oils that make the tower bottom heating get into fraction feedstock line, mix with the fraction and improve the temperature of fraction fractionating tower and improve the content of two anthracene oils in the fraction, promote the fractionation of anthracene oil composition in the vacuum distillation tower, and then improve the quality and the extraction rate of the anthracene oil of side cut.
Drawings
Fig. 1 is the utility model provides high anthracene oil quality and yield feed arrangement's schematic structure drawing.
In the figure, 1-a reduced pressure distillation tower, 2-a tower bottom circulation pipeline, 3-a fraction feeding pipeline, 4-a communication pipeline, 5-an anthracene oil extraction pipeline, 6-a temperature sensor, 7-a first electromagnetic valve, 8-a second electromagnetic valve, 9-a controller, 10-a control valve and 11-a circulation pump.
Detailed Description
In order to make the technical problem, technical scheme and beneficial effect that the utility model will solve clearer and more obvious, combine embodiment and attached drawing, it is right to go on further detailed description the utility model discloses. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. The technical solution of the present invention is described in detail below with reference to the embodiments and the accompanying drawings, but the scope of protection is not limited thereto.
As shown in FIG. 1, the present embodiment provides a feeding device for improving the quality and yield of anthracene oil, which comprises a vacuum distillation tower 1; the bottom of the reduced pressure distillation tower 1 is connected with a tower bottom circulating pipeline 2; the reduced pressure distillation tower 1 is connected with a fraction feed line 3; the fraction feed line 3 is connected with the tower bottom circulating line 2 through a communicating pipeline 4; the side part of the reduced pressure distillation tower 1 is connected with an anthracene oil extraction pipeline 5; the anthracene oil extraction pipeline 5 is connected with a temperature sensor 6 and a first electromagnetic valve 7; the communication pipeline 4 is provided with a second electromagnetic valve 8; the temperature sensor 6 is connected with a controller 9, and the controller 9 is respectively connected with a first electromagnetic valve 7 and a second electromagnetic valve 8. The controller 9 is a PLC controller. The distillate feed line 3 is provided with a control valve 10. The bottom circulation line 2 is provided with a circulation pump 11 and a control valve 10.
The specific working process of the device is as follows:
when the temperature of the anthracene oil extracted by the anthracene oil extraction pipeline 5 is within the standard control range, the controller 9 controls to open the first electromagnetic valve 7 and close the second electromagnetic valve 8, in this state, the anthracene oil is normally extracted, and the anthracene oil fractionated at the bottom of the tower is heated and then is normally and circularly heated for the reduced pressure distillation tower.
When the temperature of the anthracene oil extracted by the anthracene oil extraction pipeline 5 is lower than a standard control range, the controller 9 controls to close the first electromagnetic valve 7 and open the second electromagnetic valve 8, so that the fractionated anthracene oil component heated in the tower bottom circulation pipeline 2 enters the fraction feeding pipeline 3 to be mixed with the fraction, the temperature of the fed fraction is improved, the fractionation of the fraction in the tower is promoted, when the temperature of the fractionated anthracene oil returns to normal, the controller 9 opens the first electromagnetic valve 7 again and closes the second electromagnetic valve 8, the anthracene oil is normally extracted, and the fractionated anthracene oil at the tower bottom heats and then normally circularly heats the reduced pressure distillation tower. Through the feed arrangement of this embodiment, the quality and the extraction rate of the anthracene oil of effectual improvement side cut.
The above description is for further details of the present invention with reference to specific preferred embodiments, and it should not be understood that the embodiments of the present invention are limited thereto, and it will be apparent to those skilled in the art that the present invention can be implemented in a plurality of simple deductions or substitutions without departing from the scope of the present invention, and all such alterations and substitutions should be considered as belonging to the present invention, which is defined by the appended claims.
Claims (4)
1. The feeding device for improving the quality and yield of anthracene oil is characterized by comprising a reduced pressure distillation tower (1); the bottom of the reduced pressure distillation tower (1) is connected with a tower bottom circulating pipeline (2); the reduced pressure distillation tower (1) is connected with a fraction feeding pipeline (3); the fraction feeding pipeline (3) is connected with the tower bottom circulating pipeline (2) through a communicating pipeline (4); the side part of the reduced pressure distillation tower (1) is connected with an anthracene oil extraction pipeline (5); the anthracene oil extraction pipeline (5) is connected with a temperature sensor (6) and a first electromagnetic valve (7); the communicating pipeline (4) is provided with a second electromagnetic valve (8); the temperature sensor (6) is connected with a controller (9), and the controller (9) is respectively connected with a first electromagnetic valve (7) and a second electromagnetic valve (8).
2. The feeding device for improving the quality and yield of anthracene oil according to claim 1, characterized in that the distillate feeding line (3) is provided with a control valve (10).
3. The feeding device for improving the quality and yield of anthracene oil according to claim 1, characterized in that the bottom circulation line (2) is provided with a circulation pump (11) and a control valve (10).
4. The feeding device for improving the quality and yield of anthracene oil according to claim 1, wherein the controller (9) is a PLC controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222253834.6U CN217578777U (en) | 2022-08-26 | 2022-08-26 | Feeding device for improving quality and yield of anthracene oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222253834.6U CN217578777U (en) | 2022-08-26 | 2022-08-26 | Feeding device for improving quality and yield of anthracene oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217578777U true CN217578777U (en) | 2022-10-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222253834.6U Active CN217578777U (en) | 2022-08-26 | 2022-08-26 | Feeding device for improving quality and yield of anthracene oil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217578777U (en) |
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2022
- 2022-08-26 CN CN202222253834.6U patent/CN217578777U/en active Active
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