Simple device for extracting methanol waste liquid in laboratory

Abstract

The utility model discloses a simple device for extracting methanol waste liquid in a laboratory, which comprises a heating device, a container, a condensing device and a collecting device, methanol degreasing mixed liquid is filled in the container, one end of the condensing device is connected with the container, the other end of the condensing device is connected with the collecting device, and the heating device is arranged below the container. The device has the characteristics of simple structure, convenience in operation and low cost. The constant-temperature circulating water controller is adopted to replace the snake-shaped condensation pipe, heat exchange is sufficient, condensation occurs in different temperature sections of the tower body, and the rectification efficiency is high. And a full-transparent glass device is arranged, so that the visibility is good, the tower cannot turn over, and the safety of the device is higher. The purity of the laboratory methanol waste liquid treated by the rectification device can reach more than 99%, and the laboratory methanol waste liquid can be applied to a degreasing process again without influencing a detection result.

Description

Technical Field

[0001] The utility model relates to the technical field of distillation, in particular to a simple device for extracting methanol waste liquid for laboratory use. Background Art

[0002] In the process of sorghum amylopectin detection, methanol is often used to defatted samples to ensure the accuracy of the test results, and the methanol defatted mixture after use is treated as experimental waste liquid. In this mixture, the methanol content is high, and direct treatment as waste liquid is bound to cause waste. Methanol, as a water-soluble compound, may have a negative impact on aquatic organisms and ecosystems if it leaks into the water body. High concentrations of methanol may cause the death of aquatic organisms, while low concentrations of methanol may affect the growth and reproduction of organisms. A certain concentration of methanol leaking into the soil may also affect the ecological environment of the soil. Therefore, purifying and reusing methanol has great practical value and environmental protection functions.

[0003] Previously, a small laboratory distillation tower was used, which was insulated by vacuum silver plating, electric heating wires, electric heating belts, coating, etc. A reflux controller was used to control the reflux ratio. Part of the condensed liquid was returned to the top of the tower as reflux liquid and entered the distillation tower, and the rest was taken out as distillate to achieve the purpose of component separation. However, the tower was easy to overturn during the purification process, the separation efficiency was low, the reflux controller was easy to damage, the structure was complex, the cost was high, and the operation was difficult. Utility Model Content

[0004] The utility model aims to provide a simple laboratory methanol waste liquid extraction device to solve the technical problems of low separation efficiency, complex structure and great operation difficulty of laboratory methanol extraction devices in the prior art.

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

[0006] The utility model provides a simple laboratory methanol waste liquid extraction device, comprising a heating device, a container, a condensing device, and a collecting device. The container is filled with a methanol degreasing mixed liquid, one end of the condensing device is connected to the container, and the other end is connected to the collecting device, and a heating device is placed under the container.

[0007] Furthermore, the condensing device includes a condensing tube and a constant temperature circulating water controller capable of controlling temperature, and the constant temperature circulating water controller includes constant temperature circulating water controller one and constant temperature circulating water controller two.

[0008] Furthermore, the condenser and the constant temperature circulating water controller are connected via a rubber tube.

[0009] Furthermore, the condenser includes serpentine condenser tube 1 and serpentine condenser tube 2, and is connected to the container and the collecting device through a rubber stopper and a glass conduit.

[0010] Furthermore, the serpentine condenser tube 1 and the serpentine condenser tube 2 are connected via a rubber stopper and a V-shaped glass tube.

[0011] Furthermore, the heating device is a water bath heater or a heating jacket.

[0012] Furthermore, the collecting device is a conical flask.

[0013] Based on the above technical solution, the embodiment of the utility model can at least produce the following technical effects:

[0014] (1) The simple laboratory methanol waste liquid extraction device provided by the utility model has the characteristics of simple structure, convenient operation and low cost.

[0015] (2) The simple laboratory methanol waste liquid extraction device provided by the utility model adopts a constant temperature circulating water controller and a serpentine condenser tube instead, which ensures sufficient heat exchange, condensation occurs at different temperature sections of the tower body, and high distillation efficiency.

[0016] (3) The utility model provides a simple laboratory methanol waste liquid extraction device, which is a fully transparent glass device with good visibility and no tower overturning, making the device safer.

[0017] (4) The utility model provides a simple device for extracting laboratory methanol waste liquid. After being treated by the distillation device, the purity of the laboratory methanol waste liquid can reach more than 99%, and it can be used again in the degreasing process without affecting the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the present invention or 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 present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0020] In the figure: 1. Heating device; 2. Container; 3. Serpentine condenser tube 1; 4. Serpentine condenser tube 2; 5. Collecting device; 6. Constant temperature circulating water controller 1; 7. Constant temperature circulating water controller 2. DETAILED DESCRIPTION

[0021] The following will combine the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0022] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application; the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance; in addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0023] Example 1

[0024] The utility model provides a simple device for extracting methanol waste liquid for laboratory use, comprising a heating device 1, a container 2, a condensing device, and a collecting device 5. The container 2 is filled with a methanol degreasing mixed liquid, one end of the condensing device is connected to the container 2, and the other end is connected to the collecting device 5, and the heating device 1 is placed under the container 2.

[0025] In this embodiment, the condensing device includes a condensing tube and a constant temperature circulating water controller capable of controlling temperature, and the constant temperature circulating water controller includes a constant temperature circulating water controller 1 6 and a constant temperature circulating water controller 2 7.

[0026] In this embodiment, the condenser and the constant temperature circulating water controller are connected via a rubber tube.

[0027] In this embodiment, the condenser includes a serpentine condenser tube 1 3 and a serpentine condenser tube 2 4, and is connected to the container 2 and the collecting device 5 through a rubber stopper and a glass tube.

[0028] In this embodiment, the serpentine condenser tube 1 3 and the serpentine condenser tube 2 4 are connected via a rubber stopper and a V-shaped glass tube.

[0029] In this embodiment, the heating device 1 is a heating sleeve.

[0030] In this embodiment, the collecting device 5 is a conical flask.

[0031] In this embodiment, the container 2 is a distillation flask.

[0032] The methanol degreasing mixed liquid in the distillation flask 2 is heated by an adjustable electric heating jacket 1, and the liquid mixture is partially vaporized and enters the serpentine condenser tube 3 from the distillation flask. The serpentine condenser tube 3 is connected to the constant temperature circulating water controller 27, and the water temperature is controlled at 70-75°C. The condensed water enters from the bottom and flows out from the top. The high-boiling point lipid substances in the steam condense in the serpentine condenser tube 3 and flow back into the distillation flask 2. Because the boiling point of methanol is 64.7°C, the methanol vapor will not condense, and moves upward through the serpentine condenser tube 3 and enters the serpentine condenser tube 4. The serpentine condenser tube 4 is connected to the constant temperature circulating water controller 6, and the low-temperature condensed water connected thereto realizes the condensation of the purified methanol vapor. All the condensate enters the collection device 5 as a distillate and is taken out.

[0033] The structures, functions and connection forms disclosed in this article can be implemented in other ways. For example, the embodiments described above are only exemplary, for example, multiple components can be combined or integrated into another component; in addition, each functional component in each embodiment of this article can be integrated into one functional component, or each functional component can exist physically separately, or two or more functional components can be integrated into one functional component.

[0034] The above is only a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several modifications and improvements without departing from the inventive concept of the present invention, and these modifications and improvements all fall within the protection scope of the present invention.

Claims

1. A simple device for extracting methanol waste liquid in laboratory, characterized in that: The invention comprises a heating device (1), a container (2), a condensing device, and a collecting device (5); the container (2) contains a methanol degreasing mixed liquid; one end of the condensing device is connected to the container (2), and the other end is connected to the collecting device (5); the heating device (1) is placed below the container (2); the condensing device comprises a condensing tube and a temperature-controllable constant temperature circulating water controller; the constant temperature circulating water controller comprises a constant temperature circulating water controller 1 (6) and a constant temperature circulating water controller 2 (7); the condensing tube and the constant temperature circulating water controller are connected via a rubber tube.

2. The simple device for extracting methanol waste liquid in laboratory according to claim 1, characterized in that: The condenser tubes include a serpentine condenser tube 1 (3) and a serpentine condenser tube 2 (4), and are connected to a container (2) and a collecting device (5) via a rubber stopper and a glass conduit.

3. The simple device for extracting methanol waste liquid in laboratory according to claim 2, characterized in that: The serpentine condenser tube 1 (3) and the serpentine condenser tube 2 (4) are connected via a rubber stopper and a V-shaped glass conduit.

4. The simple device for extracting methanol waste liquid in laboratory according to claim 1, characterized in that: The heating device (1) is a water bath heater or a heating jacket.

5. The simple device for extracting methanol waste liquid in laboratory according to claim 1, characterized in that: The collecting device (5) is a conical flask.

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