CN215592970U - 2-ethyl anthraquinone continuous extraction system - Google Patents

2-ethyl anthraquinone continuous extraction system Download PDF

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Publication number
CN215592970U
CN215592970U CN202121468694.3U CN202121468694U CN215592970U CN 215592970 U CN215592970 U CN 215592970U CN 202121468694 U CN202121468694 U CN 202121468694U CN 215592970 U CN215592970 U CN 215592970U
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extraction
tank
mixer
extractant
separation tower
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董世裕
董倞
杨华
黄丰
黄立想
张胜铁
罗忠师
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Baise Shiyu Technology Co ltd
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Baise Shiyu Chemical Technology Co Ltd
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Abstract

The utility model relates to the technical field of extraction systems, in particular to a 2-ethylanthraquinone continuous extraction system which comprises an extractant circulating tank, an acid-separated liquid intermediate tank, a mixer, an extraction separation tower, an extraction liquid buffer tank and a waste acid storage tank, wherein the extractant circulating tank and the acid-separated liquid intermediate tank are both connected with the mixer, the mixer is connected with the extraction separation tower through a delivery pump, the upper part of the extraction separation tower is connected with the extraction liquid buffer tank, and the lower part of the extraction separation tower is connected with the waste acid storage tank through a U-shaped pipe. The utility model ensures that the extraction is sufficient, the waste sulfuric acid hardly takes away the 2-ethyl anthraquinone, the good extraction effect is achieved, the automatic layered discharge can be realized, and the continuous production is realized.

Description

2-ethyl anthraquinone continuous extraction system
[ technical field ] A method for producing a semiconductor device
The utility model relates to the technical field of chemical production equipment, in particular to a 2-ethyl anthraquinone continuous extraction system.
[ background of the utility model ]
The crude 2-ethyl anthraquinone product needs to be extracted by an extractant to be separated from dilute sulfuric acid after ring closure and acid precipitation. The extraction in the industry at present adopts a packed tower, proper packing is filled in the tower, a light phase (also called continuous phase-toluene) enters from the bottom, and is discharged from the top; the heavy phase (also called as dispersed phase-acid precipitation liquid) enters from the top and is discharged from the bottom. During extraction, the continuous phase is filled in the whole tower, the dispersed phase is dispersed into liquid drops by the distributor to enter the packing layer and then is in countercurrent contact with the continuous phase for mass transfer, the equipment efficiency is low, the waste sulfuric acid discharged from the bottom of the extraction tower can take away the 2-ethyl anthraquinone due to poor contact of the two phases, and the product yield is low.
[ summary of the utility model ]
Aiming at the problems, the utility model provides the 2-ethylanthraquinone continuous extraction system, the 2-ethylanthraquinone continuous extraction system ensures that the extraction is sufficient, the waste sulfuric acid hardly takes away the 2-ethylanthraquinone, the good extraction effect is achieved, the automatic layered discharge can be realized, and the continuous production is realized.
In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:
the utility model provides a 2-ethylanthraquinone continuous extraction system, includes extractant circulation tank, acid-out liquid pans, blender, extraction knockout tower, extract buffer tank and spent acid storage pool, extractant circulation tank and acid-out liquid pans all with the blender is connected, the blender pass through the delivery pump with the extraction knockout tower is connected, the upper portion of extraction knockout tower with the extract buffer tank is connected, the lower part of extraction knockout tower through a U type pipe with spent acid storage pool is connected.
Further, the extractant circulating tank is connected with the mixer through an extractant circulating pump.
Further, the blender includes the barrel, be equipped with the spinning disk in the barrel, the one end of spinning disk stretches into in the barrel, the other end of spinning disk with the one end fixed connection of barrel, just the length of spinning disk equals with the inside length of barrel.
Furthermore, liquid level meters are arranged on the extracting agent circulating tank and the acid separation liquid intermediate tank.
Furthermore, flow regulating valves are arranged on pipelines between the extracting agent circulating pump and the mixer and between the conveying pump and the extraction separation tower.
Furthermore, a first sight glass is arranged on a pipeline between the upper part of the extraction separation tower and the extraction liquid buffer tank, and a second sight glass is arranged on the U-shaped pipe.
Further, the flow regulating valve is connected with the DCS control system.
Further, the extractant is toluene.
By adopting the technical scheme, the utility model has the beneficial effects that:
according to the utility model, the extractant circulating tank and the acid-out liquid intermediate tank are both connected with the mixer, so that the extractant toluene is pumped to the mixer in the extractant circulating tank by the extractant circulating pump according to a certain flow rate, the acid-out liquid is discharged from the bottom of the acid-out liquid intermediate tank and is contacted and mixed with the toluene in the mixer on the inlet pipeline of the conveying pump, and then is uniformly mixed by the high-speed rotation of the conveying pump. After the materials are mixed and stirred at high speed, the materials pass through the extraction separation tower without filling materials inside, so that the materials can be automatically discharged in layers in the extraction separation tower through U-shaped pipes connected with the bottom of the extraction separation tower at different density differences, and continuous feeding and discharging (continuous production) are realized.
[ description of the drawings ]
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the mixer of the present invention.
In the figure, 1-an extractant circulating tank, 2-an acid-out liquid intermediate tank, 3-a mixer, 31-a cylinder, 32-a cyclone plate, 4-an extraction separation tower, 5-an extract buffer tank, 6-a waste acid storage tank, 7-a delivery pump, 8-a U-shaped pipe, 9-an extractant circulating pump, 10-a liquid level meter, 11-a flow regulating valve, 12-a first sight glass and 13-a second sight glass.
[ detailed description ] embodiments
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Referring to fig. 1 and 2, a 2-ethylanthraquinone continuous extraction system comprises an extractant circulation tank 1, an acid-out liquid intermediate tank 2, a mixer 3, an extraction separation tower 4, an extract buffer tank 5 and a waste acid storage tank 6, wherein the extractant circulation tank 1 and the acid-out liquid intermediate tank 2 are both connected with the mixer 3, the mixer 3 is connected with the extraction separation tower 4 through a delivery pump 7, and a hand valve (not shown) is arranged on a pipeline between the delivery pump 7 and the extraction separation tower 4. The upper part of the extraction separation tower 4 is connected with the extraction liquid buffer tank 5, and the lower part of the extraction separation tower 4 is connected with the waste acid storage tank 6 through an acid discharge valve (not shown) and a U-shaped pipe 8 connected with the acid discharge valve. Wherein, the inside of the extraction separation tower 4 can be not provided with a filler, and the other structures are the same as the extraction separation tower structure in the prior art. The U-shaped pipe 8 can control the liquid level, and the extraction liquid is prevented from being discharged from the lower part of the extraction separation tower 4 along with waste acid by controlling the liquid level. In this example, the extractant chosen was toluene.
When the extraction device works, an extractant toluene is pumped to a mixer 3 by an extractant circulating pump 9 in an extractant circulating tank 1 according to a certain flow rate, an acid-out liquid comes out of the bottom of an acid-out liquid intermediate tank 2, the mixer 3 on an inlet pipeline of a conveying pump 7 is contacted and mixed with the toluene, the mixture is uniformly mixed by the high-speed rotation of the conveying pump 7, an extractant toluene oil layer and waste sulfuric acid enter the middle lower part of an extraction separation tower 4 together from an outlet of the conveying pump 7 after the mixture, the materials are discharged in layers automatically by means of different density differences and a designed U-shaped pipe 8, an extraction liquid is finally discharged from the upper part of the extraction separation tower 4, and the waste sulfuric acid is discharged from the lower part of the extraction separation tower 4.
Further, the extractant circulation tank 1 is connected with the mixer 3 through an extractant circulation pump 9, a stop valve (not shown) is arranged on a pipeline between an outlet of the extractant circulation pump 9 and the mixer 3, and the extractant toluene in the extractant circulation tank 1 is pumped into the mixer 3 through the extractant circulation pump 9.
Further, the mixer 3 includes a cylinder 31, both ends of the cylinder 31 are open, a spinning disk 32 is arranged in the cylinder 31, so that the extractant in the extractant circulation tank 1 and the acid-out liquid in the acid-out liquid intermediate tank 2 can enter the cylinder 31 to be fully mixed and then flow out to the delivery pump 7. The one end of spinning disk 32 stretches into in the barrel 31, the other end of spinning disk 32 with the one end fixed connection of barrel 31, just the length of spinning disk 32 equals with the inside length of barrel 31.
Further, the extraction agent circulation tank 1 and the acid separation liquid intermediate tank 2 are both provided with a liquid level meter 10, whether the liquid levels of the extraction agent circulation tank 1 and the acid separation liquid intermediate tank 2 reach the specified liquid levels or not is observed through the liquid level meter 10, and the extraction effect is improved through the control of the liquid levels.
Further, all be equipped with flow control valve 11 on the pipeline between extractant circulating pump 9 and the blender 3, on the pipeline between delivery pump 7 and the extraction and separation tower 4, flow control valve 11 is connected with DCS control system to realize 11 intelligent, the standardized control to flow control valve through DCS control system.
Further, a first sight glass 12 is arranged on a pipeline between the upper part of the extraction separation tower 4 and the extraction liquid buffer tank 5, whether the material flows is observed through the first sight glass 12, and whether the pipeline is blocked or whether the extraction liquid contains waste sulfuric acid is judged. And a second sight glass 13 is arranged on the U-shaped pipe 8, and whether the material flows is observed through the second sight glass 13, so that whether the pipeline is blocked or has extraction liquid is judged.
The method for continuous extraction by using the 2-ethylanthraquinone continuous extraction system comprises the following steps:
step 1, checking whether the liquid level of an extractant circulating tank 1 reaches a specified liquid level of 80% (if the liquid level is low, toluene is required to be supplemented from a toluene storage tank in a tank field), wherein the extractant toluene comes from the tank field or a toluene distillation system and returns;
step 2, starting an extractant circulating pump 9 to circulate, and normally circulating;
step 3, checking whether front and rear valves of the toluene flow regulating valve 11 are opened and whether a bypass valve is closed;
step 4, checking whether a hand valve of an extract liquor inlet buffer tank 5 of the extraction separation tower 4 is opened or not;
step 5, when the liquid level of the acid separation liquid intermediate tank 2 reaches 30-50% (wherein the acid separation liquid comes from an acid separation kettle), opening a discharge valve at the bottom of the acid separation liquid intermediate tank 2, and simultaneously opening a valve on a pipeline of a mixer 3 from an extractant circulating tank 1 to a conveying pump 7 (namely a feeding pump of an extraction separation tower);
step 6, slowly opening a stop valve on a pipeline between an outlet of the extractant circulating pump 9 and the mixer 3;
step 7, informing the DCS to control the toluene flow regulating valve 11 to control the toluene flow;
step 8, opening a hand valve on a pipeline between the delivery pump 7 and the extraction separation tower 4, starting the delivery pump 7, informing the DCS to control a flow regulating valve 11 between the delivery pump 7 and the extraction separation tower 4 to regulate the flow, and keeping the liquid level of the acid separation liquid intermediate tank 2 stable;
step 9, opening an acid discharge valve at the bottom of the extraction separation tower 4, so that the waste sulfuric acid is automatically discharged to a waste acid storage tank 6 through the liquid level control of a U-shaped pipe 8;
and 10, observing whether the extraction liquid contains waste sulfuric acid or not through a first sight glass 12, and normally entering an extraction liquid buffer tank 5 when an overflow oil layer at the upper part of the extraction separation tower 4 does not contain the waste sulfuric acid.
According to the utility model, the extractant circulating tank 1 and the acid-separated liquid intermediate tank 2 are both connected with the mixer 3, the mixer 3 is connected with the extraction separation tower 4 through the delivery pump 7, so that the extractant toluene is pumped to the mixer 3 in the extractant circulating tank 1 by the extractant circulating pump 9 according to a certain flow, the acid-separated liquid comes out from the bottom of the acid-separated liquid intermediate tank 2 and is contacted and mixed with the toluene in the mixer 3 on the inlet pipeline of the delivery pump 7, and then is uniformly mixed by the high-speed rotation of the delivery pump 7, and the mixer 3 and the delivery pump 7 are adopted to rotate and stir at a high speed, so that the liquid drops are crushed and uniformly mixed, the extraction is sufficient, the 2-ethyl anthraquinone is hardly taken away by the waste sulfuric acid, and a good extraction effect is achieved. After the materials are mixed and stirred at high speed, the materials pass through the extraction separation tower 4 without filling materials inside, so that the materials can be automatically discharged in layers inside the extraction separation tower 4 through U-shaped pipes 8 which are connected with the bottom of the extraction separation tower 4 through different density differences, and continuous feeding and discharging are realized.
The above description is intended to describe in detail the preferred embodiments of the present invention, but the embodiments are not intended to limit the scope of the claims of the present invention, and all equivalent changes and modifications made within the technical spirit of the present invention should fall within the scope of the claims of the present invention.

Claims (8)

1. The 2-ethyl anthraquinone continuous extraction system is characterized by comprising an extractant circulating tank, an acid-out liquid intermediate tank, a mixer, an extraction separation tower, an extraction liquid buffer tank and a waste acid storage tank, wherein the extractant circulating tank and the acid-out liquid intermediate tank are both connected with the mixer, the mixer is connected with the extraction separation tower through a delivery pump, the upper part of the extraction separation tower is connected with the extraction liquid buffer tank, and the lower part of the extraction separation tower is connected with the waste acid storage tank through a U-shaped pipe.
2. The continuous 2-ethylanthraquinone extraction system of claim 1, wherein the extractant circulation tank is connected to the mixer by an extractant circulation pump.
3. The continuous 2-ethylanthraquinone extraction system of claim 2, wherein the mixer comprises a cylinder, a spinning disk is arranged in the cylinder, one end of the spinning disk extends into the cylinder, the other end of the spinning disk is fixedly connected with one end of the cylinder, and the length of the spinning disk is equal to the length inside the cylinder.
4. The continuous 2-ethylanthraquinone extraction system according to claim 1, wherein the extractant circulation tank and the acid-out liquid intermediate tank are provided with liquid level meters.
5. The continuous 2-ethylanthraquinone extraction system as claimed in claim 3, wherein the flow control valves are provided on the pipes between the extractant circulating pump and the mixer and between the delivery pump and the extraction separation column.
6. The continuous 2-ethylanthraquinone extraction system according to claim 1, wherein a first sight glass is provided on a pipeline between the upper part of the extraction and separation tower and the extract buffer tank, and a second sight glass is provided on the U-shaped pipe.
7. The continuous 2-ethylanthraquinone extraction system of claim 5, wherein the flow control valve is connected to a DCS control system.
8. The continuous 2-ethylanthraquinone extraction system of claim 4, wherein the extractant is toluene.
CN202121468694.3U 2021-06-30 2021-06-30 2-ethyl anthraquinone continuous extraction system Active CN215592970U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202121468694.3U CN215592970U (en) 2021-06-30 2021-06-30 2-ethyl anthraquinone continuous extraction system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202121468694.3U CN215592970U (en) 2021-06-30 2021-06-30 2-ethyl anthraquinone continuous extraction system

Publications (1)

Publication Number Publication Date
CN215592970U true CN215592970U (en) 2022-01-21

Family

ID=79876716

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202121468694.3U Active CN215592970U (en) 2021-06-30 2021-06-30 2-ethyl anthraquinone continuous extraction system

Country Status (1)

Country Link
CN (1) CN215592970U (en)

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GR01 Patent grant
GR01 Patent grant
CP01 Change in the name or title of a patent holder
CP01 Change in the name or title of a patent holder

Address after: 531500 middle Industrial Road, Tiandong Petrochemical Industrial Park, Baise City, Guangxi Zhuang Autonomous Region

Patentee after: Baise Shiyu Technology Co.,Ltd.

Address before: 531500 middle Industrial Road, Tiandong Petrochemical Industrial Park, Baise City, Guangxi Zhuang Autonomous Region

Patentee before: Baise Shiyu Chemical Technology Co.,Ltd.

PE01 Entry into force of the registration of the contract for pledge of patent right
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: A Continuous Extraction System of 2-ethylanthraquinone

Effective date of registration: 20230331

Granted publication date: 20220121

Pledgee: Agricultural Bank of China Limited Tiandong County Sub branch

Pledgor: Baise Shiyu Technology Co.,Ltd.|GUANGXI TIANDONG DASHENG CHEMICAL TECHNOLOGY Co.,Ltd.

Registration number: Y2023450000045

PC01 Cancellation of the registration of the contract for pledge of patent right
PC01 Cancellation of the registration of the contract for pledge of patent right

Granted publication date: 20220121

Pledgee: Agricultural Bank of China Limited Tiandong County Sub branch

Pledgor: Baise Shiyu Technology Co.,Ltd.|GUANGXI TIANDONG DASHENG CHEMICAL TECHNOLOGY Co.,Ltd.

Registration number: Y2023450000045

PE01 Entry into force of the registration of the contract for pledge of patent right
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: A 2-ethylanthraquinone continuous extraction system

Granted publication date: 20220121

Pledgee: Agricultural Bank of China Limited Tiandong County Sub branch

Pledgor: Baise Shiyu Technology Co.,Ltd.|GUANGXI TIANDONG DASHENG CHEMICAL TECHNOLOGY Co.,Ltd.

Registration number: Y2024980013009