Anti-adhesion and anti-blocking device for rectification experiment
By designing an anti-adhesion blocking device in the distillation equipment and using the organic layer and metal layer isolation interface, the problem of adhesion blocking during distillation is solved, efficient distillation separation and stable product properties are achieved, and the product properties are reduced. Production and maintenance costs.
Patent Information
- Application Number
- CN202421240952.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-05-31
AI Technical Summary
During the distillation process, gaseous organic matter liquefies and accumulates at the equipment connection, resulting in adhesion blockage problems, reducing product purity, extending product collection time, and increasing equipment cleaning difficulty and maintenance costs.
A distillation experiment anti-adhesion blocking device is designed. The device body includes an organic layer and a metal layer to isolate the distillation head interface, a condenser interface and a receiving tube interface to prevent monomer molecules from adhering.
Effectively avoid the problem of monomer molecules at the device interface during distillation, realize distillation separation at high vacuum and low temperature, ensure the stability of product properties, simplify equipment cleaning and maintenance, and reduce Production and maintenance costs.
Smart Images
Figure CN222488944U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of distillation equipment, in particular to an anti-adhesion and blocking device for distillation experiments. Background Art
[0002] Distillation is a commonly used chemical separation technology. Its basic principle is to use the different volatilities of components in a mixture, that is, to use the different vapor pressures at the same temperature to separate the components. It is widely used in the fields of chemistry, petroleum, medicine, food, etc., such as petroleum refining, alcohol purification, pharmaceutical production, and spice extraction.
[0003] During the distillation process, gaseous organic matter tends to liquefy and aggregate on the surface of the equipment joints, resulting in adhesion and blockage problems. This requires the distillation equipment to operate at a higher reaction temperature, thereby reducing the purity of the collected products and extending the product collection time, resulting in a higher loss rate of the production pipeline. It is also not conducive to the subsequent disassembly and cleaning of the equipment, increasing the difficulty of equipment cleaning and maintenance costs. Utility Model Content
[0004] The purpose of the utility model is to solve the above problems and provide a distillation experiment anti-adhesion and blocking device.
[0005] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions, including:
[0006] The device body comprises an organic layer and a metal layer, an organic layer is arranged inside and outside the metal layer respectively, and the device body is used to isolate the distillation head interface, the condenser tube interface and the receiving tube interface.
[0007] As a further description of the above technical solution, the device body is respectively arranged at the interfaces at both ends of the condenser, the interface on one side of the condenser is connected through the device body and the distillation head interface, and the interface on the other side of the condenser is connected through the device body and the receiving tube interface.
[0008] As a further description of the above technical solution, the organic layer includes a first coating layer and a second coating layer.
[0009] As a further description of the above technical solution, the first coating layer is arranged on the outer wall of the distillation head interface.
[0010] As a further description of the above technical solution, the second coating layer is arranged on the inner wall of the condenser interface.
[0011] As a further description of the above technical solution, the metal layer is arranged between the inner wall of the distillation head interface and the outer wall of the condenser interface.
[0012] As a further description of the above technical solution, the thickness of the organic layer is 0.1-0.5 mm, and the material of the organic layer is polytetrafluoroethylene.
[0013] As a further description of the above technical solution, the thickness of the metal layer is 0.1-0.5 mm, and the material of the metal layer is aluminum.
[0014] As a further description of the above technical solution, the receiving tube is connected to a collecting bottle, and the collecting bottle is used to collect condensed organic matter.
[0015] As a further description of the above technical solution, the tail end of the receiving tube is connected to a vacuum pump, and the vacuum pump is used to generate negative pressure.
[0016] The beneficial effects of the utility model are as follows:
[0017] 1. The utility model can avoid the problem of monomer molecule adhesion at the interface of the device during the distillation process, and the entire device can achieve a higher vacuum degree, and can control the distillation separation of materials at a lower temperature, thereby ensuring the stability of product properties;
[0018] 2. After the reaction is finished, the utility model can disassemble the components of the equipment for subsequent cleaning, which greatly reduces the loss rate of the production pipeline, improves production efficiency, enables the production process to be carried out safely and effectively, improves the safety of the overall equipment, reduces pipeline losses, and further saves production and maintenance costs.
[0019] In order to more clearly illustrate the structural features and functions of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a schematic diagram of the overall structure of the distillation experiment of the utility model;
[0021] Figure 2 It is a structural schematic diagram of the anti-adhesion and blocking device of the utility model.
[0022] Reference numerals:
[0023] 1. Device body; 11. Organic layer; 111. First coating layer; 112. Second coating layer; 12. Metal layer; 2. Distillation head; 3. Condenser; 4. Receiving tube. DETAILED DESCRIPTION
[0024] In order to make the purpose, technical solution and advantages of the embodiments of the present utility model clearer, the technical solution in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model.
[0025] like Figure 1-Figure 2 As shown, in one embodiment, a distillation experiment anti-adhesion and blocking device includes: a device body 1, the device body 1 includes an organic layer 11 and a metal layer 12, and a layer of organic layer 11 is respectively arranged inside and outside the metal layer 12. The device body 1 is used to isolate the interface of the distillation head 2, the interface of the condenser 3 and the interface of the receiving tube 4 to ensure the efficiency and safety of the operation of the device.
[0026] The device body 1 is respectively arranged at the interfaces at both ends of the condenser 3, the interface of the condenser 3 on one side of the condenser 3 is connected to the interface of the distillation head 2, and the interface of the condenser 3 on the other side is connected to the interface of the receiving tube 4.
[0027] like Figure 1-Figure 2 As shown, in this embodiment, the organic layer 11 includes a first coating layer 111 and a second coating layer 112. The first coating layer 111 is arranged on the outer wall of the interface of the distillation head 2, and its function is to provide protection and isolation for the interface; the second coating layer 112 is arranged on the inner wall of the interface of the condenser 3, and its function is to perform internal isolation and protection for the interface; the metal layer 12 is arranged between the inner wall of the interface of the distillation head 2 and the outer wall of the interface of the condenser 3, and plays a supporting role, thereby ensuring the structural stability and durability of the entire device.
[0028] Specifically, the thickness of the organic layer 11 is 0.1-0.5 mm, and the material of the organic layer 11 is polytetrafluoroethylene, which has excellent chemical inertness, corrosion resistance, wear resistance and good high temperature resistance; the thickness of the metal layer 12 is 0.1-0.5 mm, and the material of the metal layer 12 is aluminum, which has good mechanical properties and processing properties.
[0029] Working principle:
[0030] (1) Connect the distillation reaction bottle to the lower end interface of the Kjeldahl distillation head 2, then seal the upper end bottle mouth a of the distillation head 2 with a ground glass stopper, and insert a thermometer into the upper end bottle mouth b to seal it, then tightly connect the right end interface of the distillation head 2 with the condenser through the device body 1, tightly connect the right end interface of the condenser with the receiving tube 4 through the device body 1, collect the condensed organic matter through the collecting bottle, and finally connect the tail end of the receiving tube 4 to the vacuum pump through the safety bottle, the cooling trap, the pressure gauge and the absorption tower in sequence, and under the action of the vacuum pump, it can be tightly fitted to ensure high air tightness;
[0031] (2) Turn on the vacuum pump switch to make the vacuum degree of the device before distillation at -0.05 to -0.09 MPa, pour the cyanoacrylate to be distilled into the distillation reaction bottle through the upper end of the bottle mouth of the Kirschner distillation head 2, then add an appropriate amount of zeolite, and then seal the upper end of the bottle mouth of the interface with a ground glass stopper, place the distillation reaction bottle in an electric heating jacket, connect the lower end and upper end of the condenser to the cooling water inlet and outlet respectively, and allow 10° C. cooling water to pass through the condenser;
[0032] (3) Turn on the vacuum pump switch and the heating switch of the electric heating jacket and control the temperature below 100° C. The cyanoacrylate begins to boil and vaporize to produce cyanoacrylate vapor. After cooling and reflux, it enters the collecting bottle from the condenser through the receiving tube 4, and stably collects about cyanoacrylate monomer with high purity.
[0033] Before installing the anti-adhesion and blocking device, in order to accurately lower the reaction temperature for generating steam, the vacuum degree of the experimental equipment needs to be controlled below -0.08MPa, and the entire reaction operation needs to take more than 2 hours. Due to the long preparation time and high preparation temperature, the problem of organic matter adhesion at the interface will occur during the splitting of the distillation equipment, resulting in frequent pipeline losses.
[0034] Through the above technical solution, after the anti-adhesion and blocking device is installed, the vacuum degree of the experimental equipment is maintained at -0.08MPa, and the collection temperature can be stabilized at 100-120°C, which effectively solves the problem of monomer molecule adhesion at the interface of the device during the distillation process. The entire device can achieve a higher vacuum degree and can be controlled at a lower temperature to perform distillation and separation of the material, thereby ensuring the stability of the product properties; and after the reaction is completed, it can be easily separated and subsequently cleaned, which greatly reduces the loss rate of the production pipeline, improves production efficiency, enables the production process to be carried out safely and effectively, improves the safety of the overall equipment, reduces pipeline losses, and further saves production and maintenance costs.
[0035] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A distillation experiment anti-adhesion blocking device, characterized in that: include: The device body (1) comprises an organic layer (11) and a metal layer (12), wherein an organic layer (11) is provided inside and outside the metal layer (12), respectively, and the device body (1) is used to isolate the interface of the distillation head (2), the interface of the condenser (3) and the interface of the receiving tube (4).
2. The distillation experiment anti-adhesion and blocking device according to claim 1, characterized in that: The device body (1) is respectively arranged at the interfaces at both ends of the condenser (3); the interface on one side of the condenser (3) is connected through the device body (1) and the interface of the distillation head (2); and the interface on the other side of the condenser (3) is connected through the device body (1) and the interface of the receiving tube (4).
3. The distillation experiment anti-adhesion and blocking device according to claim 1, characterized in that: The organic layer (11) comprises a first coating layer (111) and a second coating layer (112).
4. The distillation experiment anti-adhesion and blocking device according to claim 3, characterized in that: The first coating layer (111) is arranged on the outer wall of the interface of the distillation head (2).
5. The distillation experiment anti-adhesion and blocking device according to claim 3, characterized in that: The second coating layer (112) is arranged on the inner wall of the interface of the condenser tube (3).
6. The distillation experiment anti-adhesion and blocking device according to claim 1, characterized in that: The metal layer (12) is arranged between the inner wall of the interface of the distillation head (2) and the outer wall of the interface of the condenser tube (3).
7. The distillation experiment anti-adhesion and blocking device according to claim 1, characterized in that: The thickness of the organic layer (11) is 0.1-0.5 mm, and the material of the organic layer (11) is polytetrafluoroethylene.
8. The distillation experiment anti-adhesion and blocking device according to claim 1, characterized in that: The thickness of the metal layer (12) is 0.1-0.5 mm, and the material of the metal layer (12) is aluminum.
9. The distillation experiment anti-adhesion and blocking device according to claim 2, characterized in that: The receiving tube (4) is connected to a collecting bottle, and the collecting bottle is used to collect condensed organic matter.
10. The distillation experiment anti-adhesion and blocking device according to claim 2, characterized in that: The tail end of the receiving tube (4) is connected to a vacuum pump, and the vacuum pump is used to generate negative pressure.