Distillation equipment for preparing propylene glycol
By designing a detachable collection structure and connection components, the problem of difficulty in cleaning impurities in traditional distillation towers is solved, and efficient cleaning of distillation equipment and thorough reactions are achieved.
Patent Information
- Application Number
- CN202421611721.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-09
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-07-09
AI Technical Summary
The traditional distillation tower and collection frame are difficult to disassemble, which makes it difficult to clean impurities and affects the thoroughness of the next distillation reaction.
A distillation equipment including a foundation plate, a storing tank, a collection structure and a connecting component was designed. The collection structure can be movably detached and connected, and the disassembly characteristics of the connecting component are used to facilitate cleaning of impurities and ensure the smooth progress of the next distillation reaction.
Through convenient disassembly and cleaning mechanisms, the cleanliness of the distillation equipment is improved, ensuring the thoroughness and efficiency of the next distillation reaction.
Smart Images
Figure CN223127274U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of distillation equipment, and specifically relates to a distillation equipment for the preparation of propylene glycol. Background Art
[0002] The scientific name of propylene glycol is "1,2 - propylene glycol", and there is a chiral carbon atom in its molecule. The racemate is a hygroscopic viscous liquid with a slightly pungent taste, miscible with water, acetone, ethyl acetate and chloroform, and soluble in ether. It can dissolve in many essential oils, but is immiscible with petroleum ether, paraffin and grease. It is relatively stable to heat and light, and more stable at low temperatures. Propylene glycol can be oxidized to propionaldehyde, lactic acid, pyruvic acid and acetic acid at high temperatures.
[0003] In the process of preparing propylene glycol, it is roughly divided into the following steps:
[0004] Catalyst preparation: The catalyst is prepared into a solution according to a certain ratio for subsequent use. - Propylene oxide and water mixing: Propylene oxide and water are mixed according to a certain ratio to form a reaction material. - Reaction: The reaction material is added into a reactor, and an addition reaction is carried out at a certain temperature and pressure to generate propylene glycol. - Separation and purification: Propylene glycol is separated from the reaction mixture by methods such as distillation and extraction, and purified to obtain a propylene glycol product with a higher purity.
[0005] Generally, the tool that is difficult to use is a distillation column. When using a distillation column, the reaction of propylene glycol can be made more complete. However, when collecting the purification equipment, some problems of incomplete reaction will occur. In this way, there will be some impurities at the bottom of the collection box. However, for traditional distillation columns, because the distillation column and the collection box are not easy to disassemble, it is difficult to clean the impurities in the collection box, thus affecting the next distillation reaction. Utility Model Content
[0006] The purpose of this application is to provide a distillation equipment for the preparation of propylene glycol, so as to solve the problem of incomplete reaction mentioned in the above background art. In this way, there will be some impurities at the bottom of the collection box. However, for traditional distillation columns, because the distillation column and the collection box are not easy to disassemble, it is difficult to clean the impurities in the collection box, thus affecting the next distillation reaction.
[0007] To achieve the above object, the present application provides the following technical solutions: A distillation device for preparing propylene glycol, the distillation device includes a base plate, a placement groove, a collection structure, a distillation tower body and a connection component. The placement groove is arranged at the middle position of the top of the base plate. The collection structure is movably and detachably connected to the inside of the placement groove. The distillation tower body is fixedly arranged at the middle position of the top of the base plate. The bottom end of the distillation tower body is interconnected with the inside of most placement grooves. The connection component is movably and detachably installed at the bottom end of the distillation tower body. The bottom end of the connection component is detachably connected to the top end of the collection structure.
[0008] Optionally, the connection component includes a limiting plate movably installed inside the distillation tower body, a rubber ring fixedly arranged around the top of the limiting plate, a seepage hole opened on the inner side wall of the limiting plate, and a fixing plate fixedly arranged on one side of the limiting plate.
[0009] Optionally, the connection component further includes two limiting arc grooves opened at both ends of the bottom of the limiting plate. The two limiting arc grooves are arranged in a central symmetry structure.
[0010] Optionally, a conical tower body is fixedly arranged at the top end of the distillation tower body. The conical tower body is arranged as an inverted cone. A docking groove is opened on one side of the distillation tower body. The inside of the docking groove is for the limiting plate to be engaged. The side of the limiting plate abuts against the inner side wall of the distillation tower body.
[0011] Optionally, the collection structure includes a collection box arranged inside the placement groove, a containing cavity opened inside the collection box, an output pipe fixedly arranged on the outside of one side of the collection box, and a docking convex block fixedly arranged on the top of the collection box.
[0012] Optionally, there are two docking convex blocks. The two docking convex blocks are arranged in a central symmetry structure. The docking convex blocks are engaged with the inside of the limiting arc grooves.
[0013] In summary, the present application has the following beneficial effects: By arranging a placement groove inside the base plate, a collection structure movably arranged inside the placement groove, and the collection structure and the connection component are movably connected, the whole collection structure can be disassembled and installed on the top of the base plate. When some impurities are generated inside the distillation tower body due to insufficient reaction, the collection structure can be disassembled by using the detachable characteristics of the connection component and the collection structure. At the same time, it is convenient to clean the chemical impurities inside the collection structure, ensuring the occurrence of the next distillation reaction. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 is the main three-dimensional structure schematic diagram of the present application;
[0015] Figure 2 is the structure schematic diagram of the present application without the collection structure installed;
[0016] Figure 3 It is a schematic bottom view structure diagram of the device main body of the present application;
[0017] Figure 4 of the present application Figure 3 is a schematic enlarged structure diagram at position A in
[0018] Figure 5 is a partial three-dimensional structure diagram of the collection structure of the present application.
[0019] In the figure:
[0020] 1. Base plate;
[0021] 2. Collection structure; 21. Collection frame; 22. Docking convex block; 23. Output pipe; 24. Placing cavity;
[0022] 3. Placing groove;
[0023] 4. Docking groove;
[0024] 5. Conical tower body;
[0025] 6. Distillation tower body;
[0026] 8. Connection component; 81. Fixed plate; 82. Limiting plate; 83. Rubber ring; 84. Infiltration hole; 85. Limiting arc groove. Detailed implementation manners
[0027] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.
[0028] The following will be further described in detail in conjunction with the attached Figures 1-5 for the embodiments of the present application.
[0029] Embodiment 1
[0030] A distillation device for preparing propylene glycol. The distillation device includes a base plate 1, a placement groove 3, a collection structure 2, a distillation tower body 6, and a connection component 8. The placement groove 3 is arranged at the middle position of the top of the base plate 1. The collection structure 2 is movably and detachably connected to the inside of the placement groove 3. The distillation tower body 6 is fixedly arranged at the middle position of the top of the base plate 1. The bottom end of the distillation tower body 6 communicates with the inside of most of the placement grooves 3. The connection component 8 is movably and detachably installed at the bottom end of the distillation tower body 6. The bottom end of the connection component 8 is detachably connected to the top end of the collection structure 2. The collection structure 2 inside the placement groove 3 can collect the distilled water in the device body, and at the same time, it can clean the impurities inside the collection structure 2. During the distillation process, the conical tower body 5 and the distillation tower body 6 form a distillation container that is narrow at the top and wide at the bottom to achieve distillation.
[0031] Embodiment 2
[0032] The connection component 8 includes a limit plate 82 movably installed inside the distillation tower body 6, a rubber ring 83 fixedly arranged around the top of the limit plate 82, a downward infiltration hole 84 opened on the inner side wall of the limit plate 82, and a fixed plate 81 fixedly arranged on one side of the limit plate 82. The connection component 8 further includes two limit arc grooves 85 opened at both ends of the bottom of the limit plate 82. There are two groups of limit arc grooves 85, and the limit arc grooves 85 are symmetrically structured about the center line. A conical tower body 5 is fixedly arranged at the top end of the distillation tower body 6. The conical tower body 5 is arranged as an inverted cone. A docking groove 4 is opened on one side of the distillation tower body 6. The inside of the docking groove 4 is for the limit plate 82 to be engaged. The side of the limit plate 82 abuts against the inner side wall of the distillation tower body 6.
[0033] The collection structure 2 includes a collection frame 21 arranged inside the placement groove 3, a containing cavity 24 opened inside the collection frame 21, an output pipe 23 fixedly arranged on the outside of one side of the collection frame 21, and a docking convex block 22 fixedly arranged on the top of the collection frame 21. There are two groups of docking convex blocks 22, and the two groups of docking convex blocks 22 are symmetrically structured about the center line. The docking convex blocks 22 are engaged with the inside of the limit arc grooves 85.
[0034] It can be further explained in this embodiment that when the collection structure 2 is assembled, the collection structure 2 can be pushed into the inner side of the placement groove 3. When the collection structure 2 is pushed into the placement groove 3, the docking convex block 22 at the top of the collection structure 2 and the limiting arc groove 85 at the bottom of the limiting plate 82 are engaged by rotation, so that the splicing of the collection structure 2 and the connection assembly 8 can be realized. Before assembling the collection structure 2, the connection assembly 8 as a whole is pushed into the inner side of the docking groove 4, so that the connection assembly 8 is engaged with the inner side of the docking groove 4, and the connection assembly 8 can abut against the inner side wall of the distillation tower body 6, preparing for the subsequent installation of the collection structure 2. When the connection assembly 8 is in use, a rubber ring 83 is fixedly arranged at the top of the limiting plate 82, and the rubber ring 83 is in close contact with the inner side wall of the distillation tower body 6. In this way, the water vapor generated by the distillation reaction can be collected at the top of the limiting plate 82 and then collected into the inner side of the collection structure 2 through the limiting plate 82, thus completing the collection.
[0035] The implementation principle of a distillation device for preparing propylene glycol in this application is as follows:
[0036] During the distillation process, the conical tower body 5 and the distillation tower body 6 form a distillation container with a narrow top and a wide bottom to realize distillation. When the collection structure 2 is assembled, the collection structure 2 can be pushed into the inner side of the placement groove 3. When the collection structure 2 is pushed into the placement groove 3, the docking convex block 22 at the top of the collection structure 2 and the limiting arc groove 85 at the bottom of the limiting plate 82 are engaged by rotation, so that the splicing of the collection structure 2 and the connection assembly 8 can be realized. Before assembling the collection structure 2, the connection assembly 8 as a whole is pushed into the inner side of the docking groove 4, so that the connection assembly 8 is engaged with the inner side of the docking groove 4, and the connection assembly 8 can abut against the inner side wall of the distillation tower body 6, preparing for the subsequent installation of the collection structure 2. When the connection assembly 8 is in use, a rubber ring 83 is fixedly arranged at the top of the limiting plate 82, and the rubber ring 83 is in close contact with the inner side wall of the distillation tower body 6. In this way, the water vapor generated by the distillation reaction can be collected at the top of the limiting plate 82 and then collected into the inner side of the collection structure 2 through the limiting plate 82, thus completing the collection.
[0037] For those skilled in the art, it is obvious that this application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of this application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of this application is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in this application. Any reference signs in the claims should not be regarded as limiting the claimed rights.
Claims
1. A distillation device for preparing propylene glycol, characterized in that, The distillation device includes: A base plate (1); A placement groove (3), which is arranged at the middle position of the top end of the base plate (1); A collection structure (2), which is detachably connected to the inner side of the placement groove (3); A distillation tower body (6), which is fixedly arranged at the middle position of the top end of the base plate (1), and the bottom end of the distillation tower body (6) communicates with the inside of most of the placement grooves (3); A connection component (8), which is detachably installed at the bottom end of the distillation tower body (6), and the bottom end of the connection component (8) is detachably connected to the top end of the collection structure (2).
2. The distillation equipment for preparing propylene glycol according to claim 1, characterized in that, The connection component (8) includes a limit plate (82) movably installed inside the distillation tower body (6), a rubber ring (83) fixedly arranged around the top of the limit plate (82), a downward percolation hole (84) opened on the inner side wall of the limit plate (82), and a fixing plate (81) fixedly arranged on one side of the limit plate (82).
3. The distillation apparatus for preparing propylene glycol according to claim 2, characterized in that, The connection component (8) further includes two limit arc grooves (85) opened at both ends of the bottom of the limit plate (82), the two limit arc grooves (85) are provided, and the limit arc grooves (85) are symmetrically structured about the center line.
4. A distillation apparatus for preparing propylene glycol according to claim 3, characterized in that, A conical tower body (5) is fixedly arranged at the top end of the distillation tower body (6), the conical tower body (5) is arranged as an inverted cone, a docking groove (4) is opened on one side of the distillation tower body (6), the inner side of the docking groove (4) is for the limit plate (82) to be engaged, and the side of the limit plate (82) abuts against the inner side wall of the distillation tower body (6).
5. A distillation apparatus for preparing propylene glycol according to claim 1, characterized in that, The collection structure (2) includes a collection frame (21) arranged inside the placement groove (3), a containing cavity (24) opened inside the collection frame (21), an output pipe (23) fixedly arranged on the outer side of one side of the collection frame (21), and a docking convex block (22) fixedly arranged on the top of the collection frame (21).
6. The distillation apparatus for preparing propylene glycol according to claim 5, characterized in that, There are two groups of the docking convex blocks (22), the two groups of docking convex blocks (22) are symmetrically structured about the center line, and the docking convex blocks (22) are engaged with the inner sides of the limit arc grooves (85).