CN219168276U

CN219168276U - Water washing separation system of toluanthraquinone

Info

Publication number: CN219168276U
Application number: CN202223542434.3U
Authority: CN
Inventors: 黄立想; 黄丰; 董世裕; 董倞; 罗忠师; 刘阳富
Original assignee: Baise Shiyu Technology Co ltd
Current assignee: Baise Shiyu Technology Co ltd
Priority date: 2022-12-28
Filing date: 2022-12-28
Publication date: 2023-06-13
Anticipated expiration: 2032-12-28

Abstract

The utility model provides a toluanthraquinone water-washing separation system, and belongs to the technical field of chemical substance water washing. The system comprises a water washing kettle and a waste water tank, wherein a pH meter is arranged behind the water washing kettle, a capacitance probe is arranged behind the pH meter, the capacitance probe is divided into two paths, one path is connected with a pumping system and used for sending discharged toluanthraquinone water washing liquid to be distilled, the other path is connected to the waste water tank, a first valve body electrically connected with the capacitance probe is arranged on the path connected with the waste water tank, and the first valve body is switched off when the capacitance value of the toluanthraquinone is detected by the capacitance probe.

Description

Water washing separation system of toluanthraquinone

Technical Field

The utility model relates to the technical field of chemical substance washing, in particular to a toluanthraquinone washing separation system.

Background

In the production process of 2-ethyl anthraquinone, dilute alkali solution is needed to carry out alkali washing on the toluquinone aqueous washing liquid, then the toluquinone aqueous washing liquid is automatically layered in a separating tower, and as the toluquinone aqueous washing liquid is lighter than waste alkali water, the toluquinone aqueous washing liquid is discharged from the upper part of the separating tower after being layered, and the waste alkali water is discharged from the lower part of the separating tower.

However, a small amount of slightly alkaline wastewater is more or less entrained in the toluanthraquinone water washing liquid directly discharged from the separation tower, if the toluanthraquinone water washing liquid directly enters the toluanthraquinone distillation kettle for distillation, the waste alkaline water is easy to scale on the inner side wall of the distillation kettle, so that the distillation kettle needs to be frequently stopped for cleaning, and the distilled toluanthraquinone crude product has more floccules, so that the subsequent preparation of a finished product is affected.

Thus, the prior art "a method for separating and purifying 2-methylanthraquinone from sulfuric acid" (20201316722. X) discloses a specific method for separating and purifying 2-methylanthraquinone, which comprises the steps of "feeding a feed liquid after alkali washing into a water washing apparatus having hot water therein to perform water washing", "feeding a feed liquid after water washing into a separating apparatus", "feeding a feed liquid after re-separation into a distilling apparatus, distilling toluene from water" and the like, but the prior art does not disclose an operation system capable of realizing water washing, separation, and purification of methylanthraquinone.

Disclosure of Invention

Aiming at the technical problems, the utility model provides a water-washing separation system of toluanthraquinone.

The utility model provides a toluquinone water-washing separation system, which comprises a water washing kettle and a waste water tank, wherein a pH meter is arranged behind the water washing kettle, a capacitance probe is arranged behind the pH meter, the capacitance probe is divided into two paths, one path is connected with a pumping system and used for sending discharged toluanthraquinone water washing liquid to be distilled, the other path is connected to the waste water tank, and a first valve body electrically connected with the capacitance probe is arranged on the path connected with the waste water tank and is turned off when the capacitance probe detects the capacitance value of the toluanthraquinone.

Further, the pumping system comprises two water pumps, the input ends of the two water pumps are connected to the capacitance probe, and the output ends of the two water pumps are combined.

Furthermore, an intercommunication valve is arranged between the input ends of the two water pumps.

Furthermore, the water washing kettle is connected with a toluquinone solution input pipeline and an industrial water input pipeline, the toluquinone solution input pipeline is provided with a third valve body and extends to the lower part of the water washing kettle, and the industrial water input pipeline is provided with a second valve body and is connected with the upper part of the water washing kettle.

Further, the water washing kettle is provided with a first liquid level meter, the first liquid level meter is electrically connected with the second valve body and the third valve body, and is used for switching off the second valve body when detecting that the liquid level in the water washing kettle reaches a first liquid level and switching off the third valve body when detecting that the liquid level in the water washing kettle reaches a second liquid level.

Further, the waste water tank is connected with a waste water pump.

Further, an output pipeline of the wastewater pump is provided with a fourth valve body.

Further, the waste water tank is provided with a second liquid level meter, and the second liquid level meter is used for switching off the fourth valve body when detecting that the liquid level in the waste water tank reaches a third liquid level and switching on the fourth valve body when detecting that the liquid level in the waste water tank reaches a fourth liquid level.

Furthermore, sight glass is arranged between the washing kettle and the pH meter, and between the capacitance probe and the wastewater tank.

The utility model provides a water-washing separation system of toluanthraquinone, which comprises a water washing kettle and a wastewater tank, wherein a pH meter and a capacitance probe are arranged between the water washing kettle and the wastewater tank, one path of the capacitance probe is connected with a pumping system after the capacitance probe is separated, and a first valve body is arranged between the capacitance probe and the wastewater tank. The pH meter monitors the wastewater discharged from the water washing kettle in real time, and when the pH value of the monitored wastewater is 7, the completion of water washing is indicated, and the liquid in the water washing kettle can be continuously discharged. After the capacitance probe is positioned on the pH meter, when the liquid discharged from the water washing kettle is detected to be the toluquinone water washing liquid, the first valve body is closed, the toluquinone water washing liquid is prevented from entering the waste water tank, the pumping system is started, the toluquinone water washing liquid discharged from the water washing kettle is pumped to be distilled, and the automatic operation of washing and separating of the toluquinone is realized.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a water-washing separation system for toluanthraquinone provided by the embodiment of the utility model;

fig. 2 to 3 are schematic diagrams of a water-washing kettle according to an embodiment of the present utility model.

The reference numerals in the figures illustrate:

1-washing the kettle; 2-pH meter; 3-capacitance probe; 4-a water pump; 5-a waste water tank; 6-an intercommunication valve; 7-a first valve body; 8-a second valve body; 9-a third valve body; 10-a fourth valve body; 11-a first level gauge; 12-a second level gauge; 13-stirring part; 14-a waste water pump; 15-viewing mirror; 21-washing the kettle body; 22-flange ports; 23-interface; 24-intubation; 25-brackets; 26-gas phase port; 27-a liquid outlet; 28-a level gauge port; 29-thermometer port.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The terms "comprising" and "having" and any variations thereof, as used in the embodiments of the present utility model, are intended to cover non-exclusive inclusion.

As shown in fig. 1, the water washing separation system of the toluquinone provided by the utility model comprises a water washing kettle 1 and a waste water tank 5, wherein a pH meter 2 is arranged behind the water washing kettle 1, a capacitance probe 3 is arranged behind the pH meter 2, the capacitance probe 3 is divided into two paths, one path is connected with a pumping system and used for sending discharged toluquinone water washing liquid to be distilled, the other path is connected with the waste water tank 5, and one path connected with the waste water tank 5 is provided with a first valve body 7 electrically connected with the capacitance probe 3, and the first valve body 7 is turned off when the capacitance probe detects the capacitance value of the toluanthraquinone water washing liquid.

Note that, the solid line in fig. 1 is a material transporting pipe, and the broken line is a signal transmission path.

The embodiment of the utility model provides a toluanthraquinone water-washing separation system, which aims at separating toluanthraquinone water-washing liquid subjected to water-washing treatment from wastewater with dissolved impurities. Therefore, the water washing separation system mainly comprises a water washing kettle 1 and a waste water tank 5. On the transportation pipeline from the water washing kettle 1 to the wastewater tank 5, a pH meter 2 is firstly arranged, the pH meter 2 can detect the pH value of the liquid flowing through the pipeline in real time and on line, and when the pH value is 7, the water washing of the p-toluanthraquinone solution is finished. Since the toluquinone washing liquid floats up after standing in the washing kettle 1 and the liquid outlet of the washing kettle 1 is arranged at the bottom of the washing kettle 1, the liquid discharged from the washing kettle 1 is firstly waste water.

The pH meter 2 is connected with the capacitance probe 3, the capacitance probe 3 can identify the capacitance value of the liquid flowing through the pipeline in real time, and the capacitance probe 3 can distinguish whether the wastewater or the toluanthraquinone water washing liquid flows through according to the capacitance value due to the fact that the capacitance values of the wastewater and the toluanthraquinone water washing liquid are different. Generally, since the density of the wastewater is greater than that of the toluquinone aqueous washing solution, the liquid flowing through the pipe is wastewater first, and the wastewater flows into the wastewater tank 5 through the pipe. When the capacitance probe 3 senses that the water washing liquid of toluquinone flows through the pipeline, the first valve body 7 electrically connected with the capacitance probe is closed. The first valve body 7 is located between the capacitance probe 3 and the waste water tank 5, and closing the first valve body 7 means that the toluquinone lotion cannot flow into the waste water tank as such. At the moment, a pumping system is started and communicated with a distillation system, the washed toluanthraquinone washing liquid is pumped and sent to distillation, and finally the toluanthraquinone with higher purity can be obtained through distillation, so that the accurate separation of the toluanthraquinone washing liquid and the wastewater is realized.

In the embodiment of the present utility model, in order to ensure that the pumping system works smoothly, the pumping system includes two water pumps 4 as shown in fig. 1. The input ends of the two water pumps 4 are connected to the capacitance probe 3, and the output ends of the two water pumps 4 are combined and communicated to the distillation system, which is equivalent to connecting the two sets of water washing separation systems in parallel. The arrangement of the two water pumps 4 prevents the interruption of water washing and separating work caused by the work failure of one of the water pumps 4. Further, an intercommunication valve is arranged between the input ends of the two water pumps 4, when one of the water pumps 4 stops working, the intercommunication valve is switched, so that the toluquinone water washing liquid flows into the input end of the other water pump 4 and is conveyed to the distillation system through the other water pump 4. In addition, in order to improve the working efficiency of the whole water-washing separation system, as shown in fig. 1, each water pump 4 is actually connected with a water-washing kettle 1, which is equivalent to that two sets of water-washing separation systems are mutually backup.

Specifically, the water-washing tank 1 in the embodiment of the present utility model is required to water-wash the toluquinone water-washing liquid discharged from the alkaline washing tower, and therefore the water-washing tank 1 is connected to the toluquinone solution input line and the industrial water input line. As shown in fig. 1, wherein the toluquinone solution input pipeline is provided with a second valve body 8 extending to the lower part of the water washing kettle 1, and the industrial water input pipeline is provided with a third valve body 9 connected to the upper part of the water washing kettle 1. As shown in fig. 1, a stirring part 13 is further arranged in the water-washing kettle 1, and after the industrial water and the toluquinone water-washing liquid enter the water-washing kettle 1, the stirring part 13 fully stirs the industrial water and the toluquinone water-washing liquid, so that impurities in the toluquinone water-washing liquid are fully dissolved by the industrial water, and then layering of the wastewater and the toluquinone water-washing liquid is realized through standing.

After the water washing kettle body 21 is installed, accessories such as the stirring component 13, the toluanthraquinone solution, the industrial water input pipeline and the like are installed, so as shown in fig. 2 to 3, a flange 22 which is convenient for installing the stirring component 13 is arranged on the top of the water washing kettle body 21, a plurality of interfaces 23 which are convenient for inserting a liquid pipeline are also arranged, and a liquid outlet is arranged at the bottom of the water washing kettle body 21. The interface 23 can be connected with a cannula 24 according to actual needs, and the cannula 24 is fixedly arranged on the inner side wall of the water washing kettle body 21 through a bracket 25. And because some gas is generated in the water-washing kettle body 21 in the water-washing process, a gas phase port 26 is also arranged on the top of the water-washing kettle body 21. As can be seen in connection with fig. 1, the gas phase port 26 is connected to a gas-liquid separation tank for effecting the treatment of the gas.

Because the capacity of the water washing kettle is limited, the ratio of industrial water to toluquinone water washing liquid should be controlled during water washing so as to achieve a better water washing effect. Therefore, in the embodiment of the present utility model, as shown in fig. 1, the water tank is provided with a first liquid level meter 11, and the first liquid level meter 11 is electrically connected with the second valve body 8 and the third valve body 9, so that the second valve body 8 is turned off when the liquid level in the water tank 1 is detected to reach the first liquid level, and the third valve body 9 is turned off when the liquid level in the water tank 1 is detected to reach the second liquid level. It should be noted that, in the embodiment of the present utility model, the first liquid level is 50%, that is, the injection of the toluanthraquinone water washing liquid is stopped when the amount of the toluanthraquinone water washing liquid reaches 50% of the liquid level of the water washing kettle 1; the second liquid level is 85%, i.e. the injection of industrial water is stopped when the total amount of industrial water plus toluquinone water washing liquid reaches 85% of the liquid level of the water washing kettle 1.

As shown in fig. 2 to 3, in order to set the first liquid level meter 11 on the water washing kettle body 21, a liquid level meter opening 28 is provided on the outer wall of the water washing kettle body 21 as required, in addition, a thermometer opening 29 can be provided on the outer wall of the water washing kettle body 21 as required, and the temperature in the water washing process in the water washing kettle can be monitored in real time so as to interfere in time, and the water washing kettle 1 is prevented from being damaged by overhigh reaction temperature.

The waste water after washing is discharged into the waste water tank 5, and as shown in fig. 1, the waste water tank 5 is connected with a waste water pump 14, the waste water is discharged from the waste water tank 5 through the waste water pump 14, and the sewage treatment is performed at a sewage discharge station. In order to prevent the waste water tank 5 from being evacuated and also to ensure that the waste water in the waste water tank 5 does not overflow, an output pipeline of the waste water pump 14 of the embodiment of the present utility model is provided with a fourth valve body 10, the fourth valve body 10 is electrically connected with a second liquid level meter 12 provided in the waste water tank 5, the fourth valve body 10 is turned off when the second liquid level meter 12 detects that the liquid level in the waste water tank 5 reaches the third liquid level, and the fourth valve body 10 is turned on when the liquid level in the waste water tank 5 is detected to reach the fourth liquid level. In the present exemplary embodiment, the third liquid level is preferably 10%, that is to say at least 10% of the waste water should be retained in the waste water tank 5; the fourth liquid level is preferably 80%, that is to say the fourth valve body 10 should be opened when the capacity of the waste water tank 5 reaches 80%, and the waste water should be discharged in time.

Further, in the embodiment of the utility model, in order to facilitate the monitoring of the whole washing separation system by the staff, a sight glass 17 is arranged between the washing kettle 1 and the pH meter 2, and between the capacitance probe 3 and the wastewater tank 5. In addition, a valve body including the communication valve 6 is usually provided in front of or behind the sight glass 17, and the abnormal line is timely and purposefully opened and closed.

In summary, the working process of the utility model is as follows: firstly, a second valve body 8 on a toluquinone solution input pipeline 13 is opened, toluquinone washing liquid discharged from an alkaline washing tower is injected into a water washing kettle 1, a first liquid level meter 11 detects the liquid level in the water washing kettle 1 in real time, and after the liquid level reaches 50%, the second valve body 8 is closed; the third valve body 9 is opened, industrial water is injected into the water washing kettle 1, and after the liquid level reaches 85%, the third valve body 9 is closed. Then, the stirring part 15 in the water washing kettle 1 is started, and stirring is carried out for a certain time at a certain stirring speed, so that the industrial water and the toluanthraquinone water washing liquid can be fully mixed, impurities in the toluanthraquinone water washing liquid can be fully dissolved by the industrial water, the industrial water (namely, waste water) with the impurities dissolved therein is kept for a period of time, the density of the industrial water (namely, the waste water) is greater than that of the toluanthraquinone, the waste water sinks, and the toluanthraquinone water washing liquid floats upwards. Opening the first valve body 7 to enable the wastewater to be discharged into the wastewater tank 5, observing the data of the pH meter 2 in real time, and closing the first valve body 7 after a period of time for discharging the wastewater and before the wastewater is discharged if the pH value of the pH meter 2 is more than 7 and is alkaline, and repeating the water washing operation; if the pH value of the pH meter 2 is equal to 7, the completion of the washing is indicated, if the alkaline substances in the toluquinone lotion are not washed by water, the liquid in the washing kettle 1 is continuously discharged, when the capacitance probe 3 senses that the discharged liquid is the toluquinone lotion positioned on the upper layer, the first valve body 7 is closed, the water pump 4 in the pumping system is started, and the toluquinone lotion is pumped to the distillation treatment. In the process of discharging the wastewater, a second liquid level meter 12 in the wastewater tank 5 detects the liquid level in the wastewater tank 5 in real time, and when the liquid level is higher than 80%, a wastewater pump 14 and a fourth valve body 10 connected behind the wastewater tank 5 are started to discharge the wastewater for decontamination water treatment; when the liquid level is lower than 10%, the waste water pump 14 and the fourth valve body 10 are closed, and the waste water tank 5 is prevented from being drained.

The beneficial effects of the utility model are as follows: the utility model provides a water-washing separation system of toluanthraquinone, which comprises a water washing kettle and a wastewater tank, wherein a pH meter and a capacitance probe are arranged between the water washing kettle and the wastewater tank, one path of the capacitance probe is connected with a pumping system after the capacitance probe is separated, and a first valve body is arranged between the capacitance probe and the wastewater tank. The pH meter monitors the wastewater discharged from the water washing kettle in real time, and when the pH value of the monitored wastewater is 7, the completion of water washing is indicated, and the liquid in the water washing kettle can be continuously discharged. After the capacitance probe is positioned on the pH meter, when the liquid discharged from the water washing kettle is detected to be the toluquinone water washing liquid, the first valve body is closed, the toluquinone water washing liquid is prevented from entering the waste water tank, the pumping system is started, the toluquinone water washing liquid discharged from the water washing kettle is pumped to be distilled, and the automatic operation of washing and separating of the toluquinone is realized.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Finally, it should be noted that: the above examples are only specific embodiments of the present utility model, and are not intended to limit the scope of the present utility model, but it should be understood by those skilled in the art that the present utility model is not limited thereto, and that the present utility model is described in detail with reference to the foregoing examples: any person skilled in the art may modify or easily conceive of the technical solution described in the foregoing embodiments, or perform equivalent substitution of some of the technical features, while remaining within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit of the corresponding technical solutions. Are intended to be encompassed within the scope of the present utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.

Claims

1. The utility model provides a toluquinone's washing piece-rate system, includes washing cauldron and waste water tank, its characterized in that, be provided with the pH meter behind the washing cauldron, be provided with capacitance probe behind the pH meter, capacitance probe divides two-way afterwards, and pumping pump system is connected to one of them, is used for sending the exhaust toluanthraquinone washing liquid to distill, and another way is connected to the waste water tank, and connect waste water tank be provided with one with capacitance probe electricity is connected first valve body, first valve body is in capacitance probe detects the electric capacity value of toluanthraquinone.

2. The water wash separation system of claim 1, wherein the pump system comprises two water pumps, the inputs of both water pumps being connected to the capacitance probe and the outputs of both water pumps being combined.

3. The water wash separation system of claim 2, wherein an intercommunicating valve is disposed between the input ends of the two water pumps.

4. The water washing separation system according to claim 1, wherein the water washing kettle is connected with a toluene anthraquinone solution input pipeline and an industrial water input pipeline, the toluene anthraquinone solution input pipeline is provided with a third valve body and extends to the lower part of the water washing kettle, and the industrial water input pipeline is provided with a second valve body and is connected with the upper part of the water washing kettle.

5. The water wash separation system of claim 4 wherein the water wash tank is provided with a first level gauge electrically connecting the second valve body and the third valve body for shutting off the second valve body when it is detected that the liquid level in the water wash tank reaches a first liquid level and shutting off the third valve body when it is detected that the liquid level in the water wash tank reaches a second liquid level.

6. The water wash separation system of claim 1, wherein the wastewater tank is followed by a wastewater pump.

7. The water wash separation system of claim 6, wherein the output line of the wastewater pump is provided with a fourth valve body.

8. The water wash separation system of claim 7, wherein the sump is provided with a second level gauge for shutting off the fourth valve body when the level in the sump is detected to reach a third level and for opening the fourth valve body when the level in the sump is detected to reach a fourth level.

9. The water-washing separation system according to claim 1, wherein sight glass is arranged between the water-washing kettle and the pH meter and between the capacitance probe and the wastewater tank.