Efficient reduced pressure distillation device suitable for high-boiling-point or low-melting-point materials

Abstract

The utility model belongs to the technical field of reduced pressure distillation equipment, and particularly relates to an efficient reduced pressure distillation device suitable for high-boiling-point or low-melting-point materials, which comprises a distillation assembly, a double-layer rectifying column is arranged at the top of the distillation assembly, and a distillation head is communicated with the top of the double-layer rectifying column. A column top thermometer is fixedly mounted at the top of the distillation head, the distillation head is communicated with a bent pipe, one end, far away from the distillation head, of the bent pipe is communicated with a receiving bottle, the receiving bottle is communicated with a vacuum interface and is placed in a cooling tray, and the distillation assembly comprises a distillation bottle. According to the efficient reduced pressure distillation device suitable for the high-boiling-point or low-melting-point material, a product is directly cooled in the receiving bottle by adopting a short connecting pipeline of the distillation head and the receiving bottle, the pipeline is prevented from being blocked, the distillation efficiency is improved, meanwhile, the double-layer rectifying column is adopted, filling materials can be filled, the temperature in the column can be kept through heating, and the distillation efficiency and the material purity can be improved.

Description

Technical Field

[0001] This utility model relates to the technical field of vacuum distillation equipment, specifically a high-efficiency vacuum distillation device suitable for high-boiling-point or low-melting-point materials. Background Technology

[0002] Vacuum distillation is suitable for: the separation and purification of high-boiling-point or non-volatile organic compounds; heat-sensitive substances, such as certain pharmaceuticals, fragrances, and some organic synthesis intermediates; the purification of high-boiling-point or low-melting-point solid organic compounds; and certain substances that decompose, oxidize, or polymerize before reaching their boiling point during atmospheric distillation. Because some materials have high boiling points but low melting points and are prone to sublimation, they solidify immediately upon fraction condensation. Conventional distillation condensation equipment can lead to pipe blockages, making it difficult to collect the target fraction.

[0003] In existing distillation condensation devices, some fractions may cool and solidify in the pipeline during the distillation process, especially when the pipeline temperature is below the solidification point of the fraction. The solidified fraction will gradually accumulate and eventually block the pipeline. In view of this, a high-efficiency vacuum distillation device suitable for high-boiling-point or low-melting-point materials is proposed. Utility Model Content

[0004] The main objective of this invention is to provide a highly efficient vacuum distillation apparatus suitable for high-boiling-point or low-melting-point materials, which can solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model proposes a highly efficient vacuum distillation apparatus suitable for high-boiling-point or low-melting-point materials, comprising a distillation assembly. The top of the distillation assembly is provided with a double-layer distillation column, the top of which is connected to a distillation head. A column-top thermometer is fixedly installed on the top of the distillation head. The distillation head is connected to a bent tube, the end of which is away from the distillation head being connected to a receiving flask. The receiving flask is connected to a vacuum interface and is placed in a cooling tray. The distillation assembly includes:

[0006] A distillation flask, wherein an auxiliary distillation assembly is provided on the top of the distillation flask;

[0007] A connecting rod, which is connected to the auxiliary distillation assembly;

[0008] A fixing clip is provided at the end of the connecting rod away from the auxiliary distillation component. The connection between the distillation column and the receiving bottle is short, allowing the product to be directly cooled in the receiving bottle and avoiding blockage of the pipe.

[0009] Preferably, the double-layer distillation column is fixed to the support by a clamp, and the fixing clamp is fixed to the support.

[0010] Preferably, the auxiliary distillation assembly includes a connector, which is fixed to a connecting rod. A micro motor is fixedly connected to the upper outer wall of the connector, and a synchronous pulley is fixedly connected to the output shaft of the micro motor.

[0011] Preferably, the first synchronous pulley is driven by a synchronous belt, the synchronous belt is driven by a second synchronous pulley, and the second synchronous pulley is fixedly connected to the neck of the distillation flask. The output shaft of the micro motor rotates, driving the first synchronous pulley to rotate. Under the transmission action of the synchronous belt and the second synchronous pulley, the distillation flask rotates, thereby achieving uniform heating of the distillation flask.

[0012] Preferably, the neck of the distillation flask is fixedly connected to the inner ring of the bearing, the outer ring of the bearing is fixedly connected to the inner wall of the connector, and a sealing ring is fixedly installed on the top inner wall of the connector. The use of the sealing ring can improve the sealing effect when the bottom of the double-layer distillation column is in contact with the top of the neck of the distillation flask.

[0013] Preferably, the sealing ring is fitted onto the outer wall of the neck of the distillation flask, the bottom of the double-layer distillation column abuts against the top of the neck of the distillation flask, and the bottom of the double-layer distillation column is rotatably connected to the top of the neck of the distillation flask.

[0014] This invention provides a highly efficient vacuum distillation apparatus suitable for high-boiling-point or low-melting-point materials. It offers the following advantages:

[0015] (1) This efficient vacuum distillation apparatus for high-boiling-point or low-melting-point materials uses a short connection pipe between the distillation head and the receiving bottle to allow the product to be directly cooled in the receiving bottle, avoiding pipe blockage and improving distillation efficiency. At the same time, the use of a double-layer distillation column can be filled with packing material and heated to maintain the temperature inside the column, which helps to improve distillation efficiency and material purity.

[0016] (2) This efficient vacuum distillation device, suitable for high-boiling-point or low-melting-point materials, achieves uniform rotation of the distillation flask through the use of auxiliary distillation components. This rotation method allows the distillation flask to be heated evenly during the heating process, avoiding problems such as material decomposition or scorching caused by local overheating. At the same time, uniform heating also helps to improve distillation efficiency, allowing the material to be distilled out more fully, thereby improving the quality and purity of the product and achieving the effect of efficient distillation. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0019] Figure 2 This is a partial three-dimensional structural diagram of the present invention;

[0020] Figure 3 This is a partial three-dimensional sectional view of the present invention;

[0021] Figure 4 This utility model Figure 3 Schematic diagram of structure A in the middle.

[0022] Explanation of icon numbers:

[0023] 1. Distillation assembly; 2. Double-layer distillation column; 3. Distillation head; 4. Column top thermometer; 5. Bend; 6. Vacuum interface; 7. Receiving flask; 8. Cooling tray; 101. Distillation flask; 102. Auxiliary distillation assembly; 103. Connecting rod; 104. Fixing clamp; 1021. Connector; 1022. Micro motor; 1023. Synchronous pulley one; 1024. Synchronous belt; 1025. Synchronous pulley two; 1026. Bearing; 1027. Sealing ring.

[0024] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-4 This invention proposes a high-efficiency vacuum distillation apparatus suitable for high-boiling-point or low-melting-point materials, comprising a distillation assembly 1, a double-layer distillation column 2 at the top of the distillation assembly 1, the double-layer distillation column 2 being fixed to a support by a clamp, a column top thermometer 4 being fixedly installed, a distillation head 3 being connected to a bent tube 5, the end of the bent tube 5 away from the distillation head 3 being connected to a receiving flask 7, the receiving flask 7 being connected to a vacuum interface 6, and the receiving flask 7 being placed in a cooling tray 8. By using a short connection pipe between the distillation head 3 and the receiving flask 7, the product is directly cooled in the receiving flask 7, avoiding pipe blockage and improving distillation efficiency. At the same time, the use of a double-layer distillation column 2, which can be filled and heated to maintain the temperature inside the column, helps to improve distillation efficiency and material purity.

[0027] In an embodiment of this utility model, in order to adjust the position of the distillation assembly 1, specifically, the distillation assembly 1 includes a distillation flask 101, a connecting rod 103, and a fixing clip 104. An auxiliary distillation assembly 102 is provided on the top of the distillation flask 101. The connecting rod 103 is connected to the auxiliary distillation assembly 102. The fixing clip 104 is located at the end of the connecting rod 103 away from the auxiliary distillation assembly 102. By adjusting the position of the fixing clip 104, the fixing clip 104 is fixed on the bracket, thereby adjusting the position of the distillation flask 101 so that the distillation flask 101 can be located at a suitable position above the heater.

[0028] Furthermore, to improve the distillation effect, the auxiliary distillation assembly 102 specifically includes a connector 1021, which is fixed to the connecting rod 103. A micro motor 1022 is fixedly connected to the upper outer wall of the connector 1021. A first synchronous pulley 1023 is fixedly connected to the output shaft of the micro motor 1022. A synchronous belt 1024 is driven by the first synchronous pulley 1023, and a second synchronous pulley 1025 is driven by the synchronous belt 1024. The second synchronous pulley 1025 is fixedly connected to the neck of the distillation flask 101. The neck of the distillation flask 101 is fixedly connected to the inner ring of the bearing 1026, and the outer ring of the bearing 1026 is fixedly connected to the inner wall of the connector 1021. A sealing ring 1027 is fixedly installed on the top inner wall of the connector 1021. Through the use of the sealing ring 1027, the bottom of the double-layer distillation column 2 and the distillation process can be improved. The sealing effect when the neck tops of the distillation flask 101 are connected is achieved by a sealing ring 1027 fitted onto the outer wall of the neck of the distillation flask 101. The bottom of the double-layer distillation column 2 abuts against the top of the neck of the distillation flask 101, and the bottom of the double-layer distillation column 2 is rotatably connected to the top of the neck of the distillation flask 101. The output shaft of the micro motor 1022 rotates, driving the synchronous pulley 1023 to rotate. Under the transmission action of the synchronous belt 1024 and the synchronous pulley 1025, the distillation flask 101 rotates, achieving uniform heating of the distillation flask 101. This rotation method ensures that the distillation flask 101 is heated evenly during the heating process, avoiding problems such as material decomposition or scorching caused by local overheating. At the same time, uniform heating also helps to improve distillation efficiency, allowing the material to be distilled more fully, thereby improving the quality and purity of the product and achieving the effect of efficient distillation.

[0029] In use, first fix the device on the bracket, then place the receiving bottle 7 in the cooling tray 8, and then heat and distill the material in the distillation bottle 101. During this process, by starting the micro motor 1022, the output shaft of the micro motor 1022 rotates, driving the synchronous pulley 1023 to rotate. Under the transmission action of the synchronous belt 1024 and the synchronous pulley 1025, the distillation bottle 101 rotates, realizing uniform heating of the distillation bottle 101, so that the material can be distilled out more fully.

[0030] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A high-efficiency vacuum distillation apparatus suitable for high-boiling-point or low-melting-point materials, comprising a distillation assembly (1), characterized in that: The distillation assembly (1) is provided with a double-layer distillation column (2) at the top, and a distillation head (3) is connected to the top of the double-layer distillation column (2). A column top thermometer (4) is fixedly installed on the top of the distillation head (3). A bend tube (5) is connected to the distillation head (3). The end of the bend tube (5) away from the distillation head (3) is connected to a receiving bottle (7). The receiving bottle (7) is connected to a vacuum interface (6). The receiving bottle (7) is placed in a cooling tray (8). The distillation assembly (1) includes: A distillation flask (101) is provided with an auxiliary distillation assembly (102) on its top; A connecting rod (103) is connected to the auxiliary distillation assembly (102); A fixing clip (104) is provided at the end of the connecting rod (103) away from the auxiliary distillation assembly (102).

2. The efficient vacuum distillation apparatus for high-boiling-point or low-melting-point materials according to claim 1, characterized in that: The double-layer distillation column (2) is fixed to the support by a clamp, and the fixing clamp (104) is fixed to the support.

3. The efficient vacuum distillation apparatus for high-boiling-point or low-melting-point materials according to claim 1, characterized in that: The auxiliary distillation assembly (102) includes a connector (1021), which is fixed to a connecting rod (103). A micro motor (1022) is fixedly connected to the upper outer wall of the connector (1021), and a synchronous pulley (1023) is fixedly connected to the output shaft of the micro motor (1022).

4. The efficient vacuum distillation apparatus for high-boiling-point or low-melting-point materials according to claim 3, characterized in that: The first synchronous pulley (1023) is connected to the synchronous belt (1024), the synchronous belt (1024) is connected to the second synchronous pulley (1025), and the second synchronous pulley (1025) is fixedly connected to the neck of the distillation flask (101).

5. The efficient vacuum distillation apparatus for high-boiling-point or low-melting-point materials according to claim 4, characterized in that: The neck of the distillation flask (101) is fixedly connected to the inner ring of the bearing (1026), the outer ring of the bearing (1026) is fixedly connected to the inner wall of the connector (1021), and a sealing ring (1027) is fixedly installed on the top inner wall of the connector (1021).

6. The efficient vacuum distillation apparatus for high-boiling-point or low-melting-point materials according to claim 5, characterized in that: The sealing ring (1027) is fitted onto the outer wall of the neck of the distillation flask (101), the bottom of the double-layer distillation column (2) abuts against the top of the neck of the distillation flask (101), and the bottom of the double-layer distillation column (2) is rotatably connected to the top of the neck of the distillation flask (101).

Images