Self-control extraction layering device

Abstract

The utility model relates to a self-control extraction layering device which comprises an extraction layering tank and further comprises a collecting tank and a PLC, the extraction layering tank is connected with the collecting tank through a first pipeline, the first pipeline is sequentially provided with a first electromagnetic valve, a pH probe, a flow meter, a flow control valve, a third electromagnetic valve and an infusion pump, and the collecting tank is connected with a liquid level meter. The pH probe, the flow meter, the flow control valve, the liquid conveying pump, the liquid level meter, the electromagnetic valve I and the electromagnetic valve III are electrically connected with the PLC respectively. The self-control extraction layering device realizes self-control extraction layering, avoids errors caused by manual operation, prevents liquid separation and phase crossing, realizes rapid and accurate layering, and ensures the quality of a final finished product.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical pharmaceutical equipment, in particular to a self-controlled extraction and stratification device. Background Art

[0002] Extraction, also known as solvent extraction or liquid-liquid extraction, is a unit operation that uses the different solubilities of components in the system in the solvent to separate the mixture. It is also a method that uses the difference in solubility or distribution coefficient of substances in two immiscible (or slightly soluble) solvents to transfer solute substances from one solvent to another. Through extraction, the desired substances can be extracted from solid or liquid mixtures, and it is commonly used in the chemical and pharmaceutical fields.

[0003] The existing extraction and stratification devices are manually controlled and have the following problems: 1. It is easy to make human operating errors, resulting in phase cross-talk (upper phase entering lower phase), which requires re-stratification; 2. The operating level of each operator is different, resulting in different phase separations for each batch, affecting the quality of the final product. Utility Model Content

[0004] The utility model aims to design an automatic extraction and stratification device to realize automatic extraction and stratification, avoid human operation errors, prevent liquid separation from being mixed, quickly and accurately stratify, and ensure the quality of the final product.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A self-controlled extraction and stratification device comprises an extraction and stratification tank, a collecting tank and a PLC, wherein the extraction and stratification tank is connected to the collecting tank via a first pipeline, wherein a solenoid valve 1, a pH probe, a flow meter, a flow control valve, a solenoid valve 3 and an infusion pump are sequentially arranged on the first pipeline, wherein the collecting tank is connected to a liquid level meter, and the pH probe, the flow meter, the flow control valve, the infusion pump, the liquid level meter, the solenoid valve 1 and the solenoid valve 3 are electrically connected to the PLC respectively.

[0007] Furthermore, in the above-mentioned automatic extraction and stratification device, the first pipeline is connected to a branch pipeline in the pipe section between the first solenoid valve and the pH probe, and the branch pipeline is provided with a second solenoid valve, and the second solenoid valve is electrically connected to the PLC.

[0008] Furthermore, in the above-mentioned automatic extraction and stratification device, the collecting tank is connected to a second pipeline, a solenoid valve four is provided on the second pipeline, and the solenoid valve four is electrically connected to the PLC.

[0009] Furthermore, in the above-mentioned automatic extraction and stratification device, a stirrer is provided in the extraction and stratification tank, and the stirrer is electrically connected to the PLC.

[0010] Furthermore, in the above-mentioned automatic extraction and stratification device, a glass sight glass is provided on the first pipeline.

[0011] Furthermore, in the above-mentioned automatic extraction and stratification device, the glass sight glass is located in the pipe section of the first pipeline between the pH probe and the flow meter.

[0012] Furthermore, in the above-mentioned automatic extraction and stratification device, the extraction and stratification tank and the collection tank are respectively connected with an exhaust pipe.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the utility model provides an automatic extraction and stratification device which controls the opening and closing and coordination of a pH probe, a flow meter, a flow control valve, an infusion pump, a liquid level meter, an electromagnetic valve one and an electromagnetic valve three through a PLC, thereby replacing manual operation to achieve automatic extraction and stratification, avoiding human operation errors, preventing liquid separation from being mixed, being independent of individual operation levels, achieving rapid and accurate stratification, and ensuring the quality of the final product. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] The names of the components marked in the figure are as follows:

[0017] 1. Extraction and stratification tank; 2. Collection tank; 3. Agitator; 4. pH probe; 5. Flow meter; 6. Flow control valve; 7. Infusion pump; 8. Liquid level meter; 9. Solenoid valve one; 10. Solenoid valve two; 11. Solenoid valve three; 12. Solenoid valve four; 13. PLC; 14. Glass sight glass; 15. Drain pipe. DETAILED DESCRIPTION

[0018] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0019] Example: Please refer to Figure 1A self-controlled extraction and stratification device includes an extraction and stratification tank 1, a collection tank 2, a stirrer 3, a pH probe 4, a flow meter 5, a flow control valve 6, an infusion pump 7, a liquid level meter 8, a solenoid valve 1 9, a solenoid valve 2 10, a solenoid valve 3 11, a solenoid valve 4 12, a PLC 13, a glass sight glass 14 and an emptying pipe 15.

[0020] The extraction and stratification tank 1 is connected to the collection tank 2 through a first pipeline, and the solenoid valve 19, pH probe 4, glass sight glass 14, flow meter 5, flow control valve 6, solenoid valve 3 11 and infusion pump 7 are sequentially arranged on the first pipeline. Solenoid valve 19 is used to control whether the liquid in the extraction and stratification tank 1 enters the other parts of the first pipeline through the solenoid valve 19. The pH probe 4 is used to detect the pH value of the liquid in the first pipeline. The glass sight glass 14 is used for the operator to observe the situation in the first pipeline. The flow meter 5 is used to measure the flow rate and flow velocity of the liquid passing through. The flow control valve 6 is used to control the size of the liquid flow in the first pipeline. The solenoid valve 3 11 is used to check whether the liquid enters the remaining part of the first pipeline through the solenoid valve 3 11. The infusion pump 7 is used to provide power for the liquid to move in the first pipeline.

[0021] The stirrer 3 is arranged in the extraction and stratification tank 1. The stirrer 3 is used to stir so that the solute and the solvent in the extraction and stratification tank 1 are fully mixed and extracted.

[0022] The liquid level meter 8 is connected to the collection tank 2. The liquid level meter 8 is used to detect the liquid level in the collection tank 2.

[0023] The collecting tank 2 is connected to a second pipeline, and a solenoid valve 412 is arranged on the second pipeline. The solenoid valve 412 is used to control whether the liquid in the collecting tank 2 flows through the solenoid valve 412 to other parts of the second pipeline.

[0024] The first pipeline is connected to a branch pipeline at the pipe section between the electromagnetic valve 1 9 and the pH probe 4, and the electromagnetic valve 2 10 is arranged on the branch pipeline. The electromagnetic valve 2 10 is used to control whether the liquid enters other parts of the branch pipeline through the electromagnetic valve 2 10.

[0025] The extraction and stratification tank 1 and the collection tank 2 are respectively connected to an emptying pipe 15 for easy emptying.

[0026] The agitator 3, pH probe 4, flow meter 5, flow control valve 6, infusion pump 7, liquid level meter 8, electromagnetic valve 1 9, electromagnetic valve 2 10, electromagnetic valve 3 11 and electromagnetic valve 4 12 are respectively electrically connected to PLC 13. PLC 13 is used to control each part to cooperate and operate.

[0027] Working principle of this embodiment: This embodiment provides an automatic extraction and stratification device, and its use process for stratification is as follows:

[0028] 1. Check and ensure that all electrical equipment is in safe use. After confirming safety, turn on the power;

[0029] 2. Check and ensure that the agitator 3, pH probe 4, flow meter 5, flow control valve 6, infusion pump 7, liquid level meter 8, solenoid valve 1 9, solenoid valve 2 10, solenoid valve 3 11 and solenoid valve 4 12 are controlled by PLC 13, among which the solenoid valve 1 9, solenoid valve 2 10, solenoid valve 3 11 and solenoid valve 4 12 are in the normally closed state;

[0030] 3. Set the following action points and times on PLC 13 according to process requirements:

[0031] 3.1. The action point when the pH probe 4 detects the lower phase pH and the upper phase pH;

[0032] 3.2. The liquid level meter 8 detects the action point when the volume of the lower phase in the collection tank 2 reaches 90% of the total volume of the lower phase and the action point when the volume of the lower phase reaches the total volume of the lower phase;

[0033] 3.3. The liquid level meter 8 detects the point at which the liquid in the lower phase in the collection tank 2 reaches 90% of the total volume of the lower phase through the action point of the flow control valve 6 and the point at which the remaining 10% of the total volume of the lower phase passes through the action point of the flow control valve 6;

[0034] 3.4. Set the standing time after stirring and before starting stratification;

[0035] 4. Working order: stirrer 3 stirs → stand → PLC 13 controls to open electromagnetic valve 19, flow control valve 6 and electromagnetic valve 3 11 in sequence → PLC 13 controls to start infusion pump 7 → stratification begins, pH probe 4 detects pH value, flow meter 5 measures flow rate and flow velocity, and liquid level meter 8 detects liquid level → liquid level meter 8 detects that the volume of the lower phase in the collection tank 2 reaches 90% of the total volume of the lower phase → PLC 13 controls the flow control valve 6 to reduce the opening degree until the flow meter 5 detects that the flow velocity is half of the original → pH probe 4 detects the value from the lower phase pH to the upper phase pH → PLC 13 controls to close electromagnetic valve 3 11, stop infusion pump 7, close flow control valve 6 and close electromagnetic valve 19 in sequence, and stratification is completed;

[0036] When the liquid level meter 8 detects that the volume of the lower phase has reached the total volume action point during the stratification process, PLC13 controls to preferentially close the solenoid valve three 11 to prevent the upper phase from entering the lower phase during stratification, and then stops the infusion pump 7 in sequence, closes the flow control valve 6 and the solenoid valve one 9, and PLC13 abnormally operates and alarms to prevent damage to the automatic control system components.

[0037] The automatic extraction and stratification device controls the opening and closing and coordination of the pH probe 4, the flow meter 5, the flow control valve 6, the infusion pump 7, the liquid level meter 8, the solenoid valve 1 9 and the solenoid valve 3 11 through the PLC 13, thereby replacing the manual operation to realize the automatic extraction and stratification, avoiding the mistakes of the manual operation and preventing the cross-phase of the liquid separation, not relying on the personal operation level, and achieving fast and accurate stratification, thereby ensuring the quality of the final product.

[0038] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an element centered thereon. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an element centered thereon. The terms "upper", "lower", "left", "right", "front", "rear" and similar expressions used herein are for illustrative purposes only.

[0039] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An automatic extraction and stratification device, comprising an extraction and stratification tank (1), characterized in that: The invention also comprises a collecting tank (2) and a PLC (13); the extraction and stratification tank (1) is connected to the collecting tank (2) via a first pipeline; the first pipeline is provided with a solenoid valve (9), a pH probe (4), a flow meter (5), a flow control valve (6), a solenoid valve (11) and an infusion pump (7) in sequence; the collecting tank (2) is connected to a liquid level meter (8); the pH probe (4), the flow meter (5), the flow control valve (6), the infusion pump (7), the liquid level meter (8), the solenoid valve (9) and the solenoid valve (11) are respectively electrically connected to the PLC (13).

2. The automatic extraction and stratification device according to claim 1, characterized in that: The first pipeline is connected to a branch pipeline at the pipe section between the first solenoid valve (9) and the pH probe (4), and the branch pipeline is provided with a second solenoid valve (10), and the second solenoid valve (10) is electrically connected to the PLC (13).

3. The automatic extraction and stratification device according to claim 1, characterized in that: The collection tank (2) is connected to a second pipeline, a solenoid valve four (12) is provided on the second pipeline, and the solenoid valve four (12) is electrically connected to the PLC (13).

4. The automatic extraction and stratification device according to claim 1, characterized in that: The extraction and stratification tank (1) is provided with a stirrer (3), and the stirrer (3) is electrically connected to the PLC (13).

5. The automatic extraction and stratification device according to claim 1, characterized in that: A glass sight glass (14) is provided on the first pipeline.

6. The automatic extraction and stratification device according to claim 5, characterized in that: The glass sight glass (14) is located in the pipe section of the first pipeline between the pH probe (4) and the flow meter (5).

7. The automatic extraction and stratification device according to claim 1, characterized in that: The extraction and stratification tank (1) and the collection tank (2) are respectively connected to an exhaust pipe (15).

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