CN206613216U - A kind of extraction equipment - Google Patents

Abstract

The utility model discloses an extraction device, which belongs to the technical field of chemical separation devices, and is designed to solve the problems of the existing devices such as high labor intensity and great harm to operators. The extraction device of the utility model comprises a liquid storage tank to be extracted, an extraction agent storage tank, a mixing chamber, an extraction chamber, a collector and a controller; the liquid storage tank to be extracted and the extraction agent storage tank are respectively connected to the mixing chamber through a liquid inlet pipeline and The liquid stored in it can be supplied to the mixing chamber respectively; the mixing chamber communicates with the extraction chamber, the mixing chamber is provided with a stirrer, a solenoid valve is provided on the connecting pipeline between the mixing chamber and the extraction chamber, and the upper part of the extraction chamber is provided with The exhaust port and the lower part are provided with a liquid outlet, the liquid outlet is provided with a solenoid valve, and the collector is arranged under the liquid outlet of the extraction chamber; the agitator and each solenoid valve are connected with the controller. The extraction device of the utility model has low labor intensity; it can be operated remotely, and the injury caused by the organic solvent can be avoided as much as possible for the operator.

Description

an extraction device

technical field

The utility model relates to the technical field of chemical separation devices, in particular to an extraction device.

Background technique

Liquid/liquid extraction refers to the process of transferring components from one solution to another by using the difference in distribution coefficient of components in two immiscible solutions. Generally, the process of transferring components from the aqueous phase to the organic phase is called extraction, and the reverse process is called stripping. Liquid/liquid extraction is a commonly used method for sample pretreatment. Through liquid/liquid extraction, desired sample components can be selectively separated, enriched and purified from liquid mixtures.

Conventional liquid/liquid extraction is operated in a separatory funnel, which is mainly composed of the introduction of sample and extractant-oscillation mixing-standstill stratification-two-phase separation and other steps. In order to improve the extraction efficiency, it is usually necessary to repeat the extraction operation several times. Traditional manual liquid/liquid extraction has been widely used in the separation, enrichment and purification of sample components in analytical chemistry and organic synthesis chemistry due to its advantages of simple equipment, easy operation and good separation effect. However, traditional extraction devices have the following disadvantages: 1. The organic solvents used are usually flammable, volatile, and toxic, and are likely to cause harm to the human body and the environment; 2. Manual liquid/liquid extraction usually takes a long time, and a single operation often It takes more than ten minutes or even longer. Although repeated operations are beneficial to improve the separation effect, it also increases the workload and doubles the extraction time. In addition, the two-phase solution is easily emulsified after being vigorously oscillated and mixed. Very unfavorable for phase separation. Therefore, it is necessary to develop rapid, effective and relatively environmentally friendly liquid/liquid extraction technology.

Utility model content

The purpose of the utility model is to propose an extraction device with high degree of automation and little physical injury to operators.

For this purpose, the utility model adopts the following technical solutions:

An extraction device, comprising a liquid to be extracted storage tank, an extractant storage tank, a mixing chamber, an extraction chamber, a collector and a controller; the liquid to be extracted storage tank and the extraction agent storage tank are respectively passed through different liquid inlet pipes The road communicates with the mixing chamber and can supply the liquid stored therein to the mixing chamber respectively; the mixing chamber communicates with the extraction chamber, and a stirrer is arranged in the mixing chamber An electromagnetic valve is arranged on the communication pipeline with the extraction chamber, an exhaust port is arranged on the upper part of the extraction chamber, a liquid outlet is arranged on the lower part, an electromagnetic valve is arranged at the liquid outlet, and the collector is arranged on Below the liquid outlet of the extraction chamber; the agitator and each solenoid valve are connected to the controller.

Further, the extraction device further includes a casing, and the storage tank of the liquid to be extracted, the storage tank of the extraction agent, the mixing chamber, the extraction chamber and the collector are all placed in the casing.

Further, the housing is divided into an upper layer and a lower layer through a partition, the storage tank for the liquid to be extracted and the storage tank for the extraction agent are placed in one of the layers, and the mixing chamber, the extraction chamber and the The collector is placed in another layer; one end of the liquid inlet pipeline extends into the bottom of the corresponding storage tank, and the other end is connected to the upper part of the mixing chamber.

Further, the storage tank of the liquid to be extracted and the storage tank of the extraction agent are placed in the lower layer, the mixing chamber, the extraction chamber and the collector are placed in the upper layer, and the storage tank of the liquid to be extracted is connected to the The upper parts of the two extractant storage tanks are respectively connected with an air pump through an air inlet pipe and the upper parts of the two are respectively provided with exhaust valves, and the free ends of each air inlet pipe extend into the upper part of the corresponding storage tank, each The exhaust valves are all connected with the controller.

Further, the bottom of the mixing chamber is not lower than the upper part of the extraction chamber.

Further, the extraction device also includes an image collector arranged at the extraction chamber, the image collector is used to collect images of stratification in the extraction chamber, and the image collector and the controller connect.

Further, the extraction device further includes a timer, the timer is used to record the residence time of the solution in the extraction chamber, and the timer is connected with the controller.

Further, at least one of the extraction agent storage tank, the liquid to be extracted storage tank, the mixing chamber and the extraction chamber is provided with a liquid level sensor, and each of the liquid level sensors is connected to the controller connect.

Further, the extraction device also includes a manipulator, and the collector includes a rotatable main body and a plurality of collection bottles arranged in the main body, and the manipulator is used to cap the bottle after the collection bottle has collected the solution. A cap is placed on the collection bottle.

Further, the stirrer is a magnetic stirrer.

The beneficial effects of the utility model are as follows:

In the extraction device of the utility model, the operator can control the work of the agitator and the electromagnetic valves through the controller, so that the liquid to be extracted and the extraction agent in the mixing chamber are evenly stirred and then enter the extraction chamber for stratification. After the stratification is completed, the extracted The solution in the chamber is collected into the collector, which has a high degree of automation, greatly reduces the work intensity of the operator, can shorten the operation time, and has high accuracy; at the same time, due to the controller, it can be operated remotely and avoid operation as much as possible Personal injury caused by organic solvents caused by close contact with extraction equipment.

Description of drawings

Fig. 1 is the structural representation of the extraction device of the present utility model.

In the figure: 1. Shell; 2. Storage tank for liquid to be extracted; 3. Storage tank for extraction agent; 4. Mixing chamber; 5. Extraction chamber; 6. Collector; 7. Stirrer; 8. Liquid inlet pipeline; 9. Exhaust valve; 10. Air pump; 11. Liquid level sensor.

detailed description

The technical scheme of the utility model will be further described below in conjunction with the accompanying drawings and through specific embodiments.

Preferred embodiment one:

This preferred embodiment provides an extraction device, which is designed to solve the problems that the existing extraction device is manually operated, the operator's work intensity is high, the operation time is long, and the operator is vulnerable to personal injury.

As shown in Figure 1, the extraction device provided by this preferred embodiment comprises a liquid storage tank 2 to be extracted, an extraction agent storage tank 3, a mixing chamber 4, an extraction chamber 5, a collector 6 and a controller; the liquid storage tank 2 to be extracted and The extractant storage tank 3 communicates with the mixing chamber 4 through different liquid inlet pipelines 8 and can supply the liquid stored therein to the mixing chamber 4 respectively; the mixing chamber 4 communicates with the extraction chamber 5, and the mixing chamber 4 is provided with There is an agitator 7, and an electromagnetic valve is arranged on the connecting pipeline between the mixing chamber 4 and the extraction chamber 5. The upper part of the extraction chamber 5 is provided with an exhaust port, the lower part is provided with a liquid outlet, and the liquid outlet is provided with an electromagnetic valve. The device 6 is arranged below the liquid outlet of the extraction chamber 5 to collect the liquid discharged from the extraction chamber 5; the agitator 7 and each electromagnetic valve are connected with the controller. The stirrer 7 is preferably but not limited to a magnetic stirrer, which can stir the extractant and the liquid to be extracted, for example, it can also be a propeller stirrer. The exhaust port of the extraction chamber 5 is also preferably provided with a solenoid valve connected to the controller.

In the extraction device provided in this embodiment, the operator can control the agitator 7 and the work of the electromagnetic valves through the controller, so that the liquid to be extracted and the extraction agent entering the mixing chamber 4 are stirred evenly and then enter the extraction chamber 5 to be separated and separated. After the layer is completed, the solution in the extraction chamber 5 is collected into the collector, which has a high degree of automation, greatly reduces the work intensity of the operator, can shorten the operation time, and has high accuracy; at the same time, due to the controller, it can be used remotely Operate at a distance, and try to avoid personal injury caused by organic solvents caused by close contact between the operator and the extraction device.

On the basis of the above structure, in order to further improve the sealing of the extraction device and reduce the personal injury caused by the extraction device to the operator, the extraction device also includes a shell 1, a storage tank for the liquid to be extracted 2, an extraction agent storage tank 3, and a mixing chamber 4. Both the extraction chamber 5 and the collector 6 are placed in the casing 1 . The casing 1 is preferably made of transparent material, such as transparent plastic material.

On the basis of the above structure, in order to make the structure of the extraction device more compact, preferably, the housing 1 is divided into an upper layer and a lower layer through a partition, and the storage tank 2 for the extraction liquid and the storage tank 3 for the extraction agent are placed in one layer In, the mixing chamber 4, the extraction chamber 5 and the collector 6 are placed in another layer; one end of each liquid inlet pipeline 8 extends into the bottom of its corresponding storage tank, and the other end is connected to the top of the mixing chamber 4 (specifically Ground, one end of the liquid inlet pipeline 8 between the storage tank 2 of the extraction liquid and the mixing chamber 4 stretches into the bottom of the storage tank 2 of the extraction liquid, and the other end is connected to the top of the mixing chamber 4; the extraction agent storage tank 3 and the mixing chamber One end of the liquid inlet pipeline 8 between 4 extends into the bottom of the extraction agent storage tank 3, and the other end is connected to the top of the mixing chamber 4).

More specifically, the storage tank 2 for the extracted liquid and the storage tank 3 for the extraction agent are placed in the lower layer, and the mixing chamber 4, the extraction chamber 5 and the collector 6 are placed in the upper layer; the storage tank 2 for the liquid to be extracted and the storage tank 3 for the extraction agent The tops of the two are respectively connected with air pump 10 and the tops of the two are provided with exhaust valve 9 respectively, and the free ends of each air intake pipe (the end away from the air pump 10) stretch into the top of the storage tank corresponding to it. Each exhaust valve 9 is connected with the controller. The operator can start the air pump 10 through the controller, and the air pump 10 pumps air into the storage tank to press the liquid in the storage tank into the mixing chamber 4, and at the same time adjust the pressure in the storage tank in conjunction with the exhaust valve 9 to avoid storage Tank pressure is too high.

On the basis of the above structure, the bottom of the mixing chamber 4 is not lower than the upper part of the extraction chamber 5 . The upper part of the extraction chamber 5 refers to the part above half of the height of the extraction chamber 5 . This arrangement allows the solution in the mixing chamber 4 to enter the extraction chamber 5 through gravity.

On the basis of the above structure, in order to facilitate the operator to observe the stratification and extraction situation in the extraction chamber 5, the extraction device also includes an image collector arranged at the extraction chamber 5, and the image collector is used to collect the stratification in the extraction chamber 5. The image of the situation, the image grabber is connected with the controller. The image collector preferably includes a 360-degree rotatable camera. The operator can judge whether to stop the extraction operation based on the collection result of the image collector.

On the basis of the above structure, the extraction device further includes a timer, which is used to record the residence time of the solution in the extraction chamber 5, and the timer is connected with the controller. The operator can combine at least one of the timing result and the image acquisition result to determine whether to stop the extraction operation.

On the basis of the above structure, at least one of the extraction agent storage tank 3, the storage tank 2 of the liquid to be extracted, the mixing chamber 4 and the extraction chamber 5 is provided with a liquid level sensor 11, and each liquid level sensor 11 is connected to the controller, In order to control the liquid level in each container.

The structure of the collector 6 is not specifically limited, it can be used to collect the liquid discharged from the extraction chamber 5 . On the basis of the above structure, the extraction device also includes a manipulator, and the collector 6 includes a rotatable main body and a plurality of collection bottles arranged in the main body, and the manipulator is used to set the bottle cap on the collection bottle after the collection bottle has collected the solution. superior. When the concentration of the extractant is less than the concentration of the liquid to be extracted, the liquid to be extracted in the lower layer can be discharged into a part of the collection bottle, and then the extractant of the upper layer is collected in another part of the collection bottle; When the concentration of the extract is low, the extractant in the lower layer can be collected first. The amount collected in each collection bottle can be set according to the volume of the extractant and the liquid to be extracted and the capacity of the collection tube.

The structure of the extraction chamber 5 is not specifically limited, as long as the extraction can be performed. But preferably, the lower part of the extraction chamber 5 is tapered from top to bottom. In order to facilitate processing, preferably, the extraction chamber 5 includes an upper part and a lower part, the lower part is conical, and the upper part is inverted conical, and the upper part and the lower part form a closed cavity.

The extraction agent storage tank 3 in the extraction device can be one, also can be at least two, when the extraction agent storage tank 3 is at least two, according to specific needs, select the solution supply in one of the extraction agent storage tanks 3 into mixing chamber 4.

The following briefly introduces the use method of the extraction device of this embodiment:

Step A, the extractant in the extractant storage tank and the liquid to be extracted in the solution storage tank to be extracted are respectively supplied to the mixing chamber 4 through the liquid inlet pipeline 8;

Step B, the solution in the mixing chamber 4 is uniformly mixed under the action of the stirrer;

Step C, after the solution in the mixing chamber 4 is uniformly mixed, open the electromagnetic valve on the pipeline between the mixing chamber 4 and the extraction chamber 5, introduce all the mixed solution into the extraction chamber 5, and close the electromagnetic valve;

Step D, after the stratification in the extraction chamber 5 is completed, open the exhaust valve 9 of the extraction chamber 5 and the electromagnetic valve at the liquid outlet, and discharge the solution in the extraction chamber 5 into the collector 6;

Step E, after each collection bottle is collected, cap the bottle cap with the capping manipulator, and after all the extracts are collected, close the exhaust valve 9 of the extraction chamber 5 and the solenoid valve at the liquid outlet .

Wherein, in step A, the extractant in the extractant storage tank and the to-be-extracted liquid in the to-be-extracted solution storage tank are respectively pressed into the mixing chamber 4 through the respective air pumps 10 connected to the storage tanks.

In step D, the method for judging the completion of the stratification in the extraction chamber 5 is: the solution stays in the extraction chamber 5 for a preset time; and/or, the completion of the stratification in the extraction chamber 5 is observed through an image collector.

The technical principles of the present utility model have been described above in conjunction with specific embodiments. These descriptions are only for explaining the principles of the present utility model, and cannot be construed as limiting the protection scope of the present utility model in any way. Based on the explanations herein, those skilled in the art can think of other specific implementation modes of the present utility model without creative work, and these modes will all fall within the protection scope of the present utility model.

Claims (10)

1. An extraction device, characterized in that, comprises a liquid storage tank to be extracted (2), an extractant storage tank (3), a mixing chamber (4), an extraction chamber (5), a collector (6) and a controller; The storage tank for the liquid to be extracted (2) and the storage tank for the extraction agent (3) are respectively communicated with the mixing chamber (4) through different liquid inlet pipelines (8) and can supply the liquid stored therein respectively. Sent in the mixing chamber (4); The mixing chamber (4) is communicated with the extraction chamber (5), and the mixing chamber (4) is provided with an agitator (7), in the mixing chamber ( 4) An electromagnetic valve is arranged on the communication pipeline with the extraction chamber (5), the upper part of the extraction chamber (5) is provided with an exhaust port, and the lower part is provided with a liquid outlet, and the liquid outlet is provided with an electromagnetic valve. Valve, the collector (6) is arranged below the liquid outlet of the extraction chamber (5); the agitator (7) and each of the electromagnetic valves are connected to the controller. 2. extraction device according to claim 1, is characterized in that, described extraction device also comprises housing (1), described to-be-extracted liquid storage tank (2), described extraction agent storage tank (3), described The mixing chamber (4), the extraction chamber (5) and the collector (6) are all placed in the housing (1). 3. extraction device according to claim 2, is characterized in that, is divided into upper floor and lower floor by dividing plate in the described housing (1), and described liquid to be extracted storage tank (2) and described extraction agent storage tank (3) placed in one of the layers, the mixing chamber (4), the extraction chamber (5) and the collector (6) placed in another layer; the liquid inlet line (8) One end extends into the bottom of the corresponding storage tank, and the other end is connected to the upper part of the mixing chamber (4). 4. extraction device according to claim 3, is characterized in that, described to-be-extracted liquid storage tank (2) and described extraction agent storage tank (3) are placed in the lower floor, and described mixing chamber (4), the The extraction chamber (5) and the collector (6) are placed in the upper layer, and the upper parts of the storage tank (2) for the liquid to be extracted and the storage tank (3) for the extraction agent (3) are respectively connected with Air pump (10) and the top of the two are provided with exhaust valve (9) respectively, and the free end of each described inlet pipe stretches into the top of its corresponding storage tank, and each described exhaust valve (9) is all connected with The controller is connected. 5. The extraction device according to claim 1, characterized in that, the bottom of the mixing chamber (4) is not lower than the upper part of the extraction chamber (5). 6. extraction device according to claim 1, is characterized in that, described extraction device also comprises the image acquisition device that is arranged on described extraction chamber (5) place, and described image acquisition device is used for collecting described extraction chamber (5) ), the image collector is connected to the controller. 7. The extraction device according to any one of claims 1 to 6, characterized in that, the extraction device also comprises a timer, and the timer is used to record the residence time of the solution in the extraction chamber (5) , the timer is connected to the controller. 8. The extraction device according to any one of claims 1 to 6, characterized in that, the storage tank (2) for the liquid to be extracted, the storage tank (3) for the extraction agent, the mixing chamber (4) A liquid level sensor (11) is arranged in at least one of the extraction chamber (5) and each of the liquid level sensors (11) is connected to the controller. 9. The extraction device according to any one of claims 1 to 6, characterized in that, the extraction device also comprises a manipulator, and the collector (6) comprises a rotatable main body and a A plurality of collection bottles, the manipulator is used to set the bottle caps on the collection bottles after the solution is collected by the collection bottles. 10. The extraction device according to any one of claims 1 to 6, characterized in that the stirrer (7) is a magnetic stirrer.