Vibration evaporation concentration kettle
By designing separate evaporation chambers and heating chambers in evaporation and concentration equipment and using vibration stirring, the components separation and adhesion wall deterioration caused by rotation and local overheating of existing equipment when handling special material liquids are solved, and the problem of component separation and adhesion wall deterioration is achieved. Stable evaporation and efficient concentration of the material liquid.
Patent Information
- Application Number
- CN202421622452.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-10
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-07-10
AI Technical Summary
When existing evaporation and concentration equipment deals with special material liquids such as blood, protein and composite dispersion, it is easy to separate the material liquid components and deteriorate the sticky wall due to rotational movement and local overheating, which cannot meet the evaporation and concentration requirements of these material liquids.
A vibrating evaporation concentration kettle is designed, and by separating the evaporation chamber and heating chamber, using vibration stirring without rotary stirring, avoiding the adverse phenomena caused by local overheating and rotary centrifugal force.
The separation of components and deterioration of the sticky walls are achieved without local overheating and rotating centrifugal force during the evaporation process, ensuring the smooth evaporation and efficient concentration of the material liquid, and is suitable for handling special material liquids.
Smart Images
Figure CN222517731U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of mechanical equipment, in particular to a vibration evaporation concentration kettle. Background Art
[0002] It involves the evaporation and concentration of liquid in chemical, pharmaceutical, medical, biological and new materials. In the laboratory, a stirring ball-shaped glass bottle, a rotary (pear-shaped glass bottle) evaporator, or a jacketed barrel glass stirring kettle is commonly used. In production, a stirring glass-lined reactor is often used. In these devices, evaporation and heating are carried out in the same space during evaporation and concentration. The heat is transferred through the wall, and the solvent vaporizes and evaporates near the boiling point. During evaporation, the wall temperature is higher than the evaporation temperature of the material. In order to strengthen the transfer, stirring or rotation is used, so the liquid is in a rotating flow state, and there will be a circle of (overheated) wall-adhering material at the intersection of the vapor and liquid surface of the evaporator. In most cases, the rotating flow state and the intersection and wall-adhering phenomenon will not have adverse effects. However, when dealing with blood, protein, composite dispersion, microcapsule emulsion, etc., it is generally necessary to shake frequently when placed (to maintain the "emulsified" state to prevent precipitation), and when evaporating and concentrating the liquid that is prone to gelling and drying locally, it is required that no rotational motion is allowed during evaporation, and no local overheating is allowed in the evaporator. If the above existing evaporation equipment is used, the local material on the wall where the vapor and liquid meet will be overheated and dried, and the film will deteriorate. The centrifugal force generated by the stirring or rotation will cause the material liquid components to separate and stick to the wall and deteriorate, which is not suitable for the evaporation and concentration of these materials. With the development of science and technology, the evaporation and concentration of such special materials are increasing, and there is an increasing need to develop evaporation and concentration equipment suitable for these special materials. Summary of the invention
[0003] In view of the insufficiency of current equipment, the utility model provides a vibration evaporation concentration kettle, which has no vapor-liquid surface intersection to cause local overheating and drying of the material, or film deterioration due to the confluence of the vapor and liquid surfaces, and no separation of material and liquid components or adhesion to the wall due to the rotating centrifugal force, thereby solving the above problems of the current evaporators.
[0004] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a vibration evaporation concentration kettle, comprising an evaporation chamber, the evaporation chamber comprising an evaporation chamber barrel body and a connecting head integrated therewith; the connecting head is connected to a heating chamber with a smaller diameter than the evaporation chamber barrel body, the heating chamber comprising a heating chamber barrel body and a jacket welded thereon, a discharge port is provided at the bottom of the heating chamber barrel body, and the jacket comprises an upper jacket interface and a lower jacket interface; a kettle cover is connected to the evaporation chamber barrel body, the kettle cover comprises a stirring hole in the center and multiple functional interfaces eccentric to the center; a stirring paddle is installed in the stirring hole, the stirring paddle is provided with a layer of stirring paddle blades, a stirring shaft seal is installed on the stirring hole, the shaft end of the stirring paddle exiting the stirring shaft seal is connected to a vibration coupling, and the vibration coupling is connected to a vibration power motor; 3-4 legs are connected outside the evaporation chamber.
[0005] Furthermore, the stirring blade is a basin-type stirring blade, and the basin-type stirring blade is arranged in the heating chamber. The stirring blade is arranged in one layer. Although theoretically multiple layers are beneficial to heat transfer and mass transfer, multiple layers will "pull apart" different components in the liquid, and the enlarged relative diameter of one layer of blades can also effectively transfer heat and mass.
[0006] Furthermore, the bottom of the basin-type stirring blade is covered with air holes, which can increase the evaporation gas and enhance the heat transfer and mass transfer.
[0007] Furthermore, the evaporation chamber barrel body and the kettle cover are connected by a connecting flange, and the kettle cover is an elliptical head cover, a butterfly head cover or a flat head cover, wherein the flat head cover is suitable for small equipment.
[0008] Furthermore, the connection head is an elliptical head with a circular arc at the folded mouth, or a conical head with a circular arc at the folded mouth. The elliptical head with a circular arc at the folded mouth is suitable for treating evaporation and concentration kettles with good fluidity of the liquid, and the conical head with a circular arc at the folded mouth is suitable for treating small evaporation and concentration kettles with poor fluidity of the liquid.
[0009] Furthermore, the agitator shaft seal is a fluoroplastic composite varnish seal, and the specific composites include copper powder composite, carbon fiber composite, graphite composite, POB composite, and PEEK composite. The agitator shaft seal includes a sliding bearing that fixes and supports the agitator shaft.
[0010] Furthermore, the vibration connection joint is a spring vibration coupling, and other existing couplings that move up and down may also be used.
[0011] Compared with the existing technology, the technical solution of this application has the following beneficial effects:
[0012] 1. The evaporation chamber is not heated, there is no local hot spot in the evaporation area, and the wall material where the vapor and liquid meet will not be locally overheated and dried, or the conjunctiva will deteriorate.
[0013] 2. The evaporation surface is large. The evaporation chamber is larger than the heating chamber and has a larger volatilization area, which ensures that the liquid level is stable and without fluctuations during the concentration process.
[0014] 3. There is no adverse phenomenon such as separation of liquid components, wall sticking and deterioration caused by the centrifugal force generated by rotation. The vibration stirring with up and down motion is adopted, and only up and down motion is made to ensure that there is no vortex. The emulsification is solved by vibration without stratification, which will not cause component separation.
[0015] 4. The bottom of the basin of the basin-type stirring paddle is covered with air holes, which can not only stir the liquid but also increase the rising speed of evaporation bubbles and enhance evaporation mass transfer. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the structure of the utility model.
[0017] Figure 2 It is a structural schematic diagram of the stirring blade in the utility model.
[0018] In the figure: 100 evaporation chamber, 110 evaporation chamber barrel body, 130 connection flange, 200 heating chamber, 210 heating chamber barrel body, 211 discharge port, 220 jacket, 221 jacket upper interface, 222 jacket lower interface, 300 kettle cover, 310 stirring hole, 320 functional interface, 400 stirring paddle, 410 stirring blade, 411 air vent, 500 stirring shaft seal, 600 vibration coupling, 700 vibration power motor. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments. Obviously, the embodiments described are only part of the embodiments of the utility model, and not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0020] See also Figure 1 , Figure 2In the present embodiment, a vibration evaporation concentration kettle is provided. In the first scheme, the evaporation chamber 100 includes an evaporation chamber barrel body 110 and a connecting head 120 integrated therewith; the connecting head 120 is a conical head with a folded arc, and the connecting head 120 is connected to a heating chamber 200 with a smaller diameter than the evaporation chamber barrel body 110. The heating chamber 200 includes a heating chamber barrel body 210 and a jacket 220 welded thereon, and a discharge port 211 is provided below the heating chamber barrel body 210, and the jacket 220 includes an upper jacket interface 221 and a lower jacket interface 222; the evaporation chamber barrel body 110 is connected to a kettle cover 300, and the kettle cover 300 is a flat head of a flange cover type, and the evaporation chamber barrel body 110 and the flat head are connected by a connecting flange 130, and the flat head includes a stirring hole 310 in the center and multiple functional interfaces 320 eccentric to the center. The functional interface 320 includes a feed interface, a thermometer interface, an exhaust and vacuum pressure gauge interface, an observation interface, and a hand interface; a stirring paddle 400 is installed in the stirring hole 310, and the stirring paddle 400 is provided with a layer of stirring blades 410, and the stirring blades 410 are basin-type stirring blades 410, and the basin bottom of the basin-type stirring blades 410 is covered with air holes 411, and the basin-type stirring blades 410 are arranged in the heating chamber 200; a stirring shaft seal 500 is installed on the stirring hole 310, and the stirring shaft seal 500 is a fluoroplastic composite universal plug seal; the shaft end of the stirring paddle 400 out of the stirring shaft seal 500 is connected to a vibration coupling 600, and the vibration coupling 600 is a spring coupling, and the vibration coupling 600 is connected to a vibration power motor 700; the connection head 120 of the evaporation chamber 100 is externally connected to three legs 800. The main body of the device is a flat cover and a conical connecting head. The lower opening 222 of the jacket is suitable for hot water heating, and the upper opening 221 of the jacket is suitable for circulating warm water. The vibration power motor 700 can be fixed by a bracket provided through the connecting flange 130. This solution is suitable for small devices.
[0021] In the second scheme, the evaporation chamber 100 includes an evaporation chamber barrel 110 and a connecting head 120 integrated therewith; the connecting head 120 is an elliptical head with a circular arc at the folded edge, and the connecting head 120 is connected to the heating chamber 200 with a smaller diameter than the evaporation chamber barrel 110, and the heating chamber 200 includes a heating chamber barrel 210 and a jacket 220 welded thereon, and the heating chamber barrel 210 has a discharge port 211 at the bottom, and the jacket 220 includes an upper jacket interface 221 and a lower jacket interface 222; the evaporation chamber barrel 110 is connected to the kettle cover 300, and the kettle cover 300 is an elliptical head cover (as shown in the figure), and the kettle cover 300 includes a stirring hole 310 in the center and multiple functional interfaces 320 off-center, and the functional interfaces 320 include a feed interface, a thermometer interface, and a vacuum pressure gauge. Interface, exhaust interface, vent interface, lamp hole interface, observation interface, manhole; a stirring paddle 400 is installed in the stirring hole 310, and the stirring paddle 400 is provided with a layer of stirring blades 410, the stirring blades 410 are basin-type stirring blades, and the bottom of the basin-type stirring blades is covered with air holes 411, and the basin-type stirring blades are arranged in the heating chamber 200; a stirring shaft seal 500 is installed on the stirring hole 310, and the stirring shaft seal 500 is a double-sleeved carbon fiber reinforced fluoroplastic composite universal plug seal; the shaft end of the stirring paddle 400 out of the stirring shaft seal 500 is connected to a vibration coupling 600, and the vibration coupling 600 is a spring coupling, and the vibration coupling 600 is connected to a vibration power motor 700; the connection head 120 of the evaporation chamber 100 is externally connected to 4 legs 800. The main body of the equipment is an elliptical head cover and an elliptical connecting head. The upper opening 221 of the jacket is suitable for negative pressure steam heating, and the lower opening 222 of the jacket is suitable for negative pressure condensate. The vibration power motor 700 is positioned on the kettle cover 300 and suspended separately. This solution is suitable for medium-sized devices.
[0022] The working principle of the above embodiment is:
[0023] Structurally, evaporation and heating are separated. The evaporation chamber has no jacket. The evaporation chamber is larger than the heating chamber and has a larger volatilization area, which ensures that the liquid level is stable and has no fluctuations during the concentration process. During evaporation, the wall temperature of the evaporation chamber will not be higher than the center temperature of the liquid. When the material is concentrated, the evaporating vapor condenses on the relatively cold kettle cover, and a small amount of condensate flows downward. Because the evaporation chamber has no jacket heating, the downstream liquid will not evaporate. When it flows to the intersection of the kettle vapor and liquid, it will wash the wall material, reduce the wall material, and there is no local overheating of the liquid, and the deterioration of the conjunctiva is greatly reduced.
[0024] Operationally, the raw liquid to be concentrated enters from the feed interface 320 of the vibration evaporation concentration kettle, and the liquid level of the raw liquid volume is controlled at a position slightly below the connecting flange 130; after feeding, the exhaust interface 320 is evacuated, the vibration power motor 700 is started, and the basin-type stirring blade 410 of the stirring paddle 400 vibrates and stirs the liquid up and down to enhance heat transfer and steam transfer; the upper opening 221 and the lower opening 222 of the jacket are connected to and from the heat medium to heat the heating chamber 200; the required temperature and pressure are controlled until the liquid boils; thereafter, with the vibration of the basin-type stirring blade 410, a large number of bubbles generated in the heated liquid pass through the air holes 411 and spread throughout the liquid, move upward, break at the liquid surface of the evaporation chamber 100 to release evaporation vapor, and the liquid surface of the released evaporation vapor has no vortex and surge, and the evaporation is relatively stable; with the evaporation vapor discharged from the evaporation port 320, the liquid is concentrated, the liquid level of the concentrated liquid is controlled above the heating chamber 200, and the concentrated liquid is discharged from the discharge port 211.
[0025] The following is a specific operation example of PEDOT:PSS / AgNW (polythiophene:polystyrene sulfonic acid / silver nanowire) composite dispersion concentration to demonstrate the technical effect of the utility model.
[0026] Comparative example: rotary evaporator, pear-shaped bottle 5L, heating water temperature 55℃, vacuum pressure -0.098MPa. Processing material PEDOT:PSS / AgNW composite dispersion. Evaporation concentration content is concentrated from 0.5% to effective concentration 1.0-1.2%. After the material is poured out, there is a lot of glue remaining on the bottle wall, with a total loss of more than 25%. The concentrated material precipitates after being placed for one day, making it difficult to prepare conductive ink later.
[0027] Operation example: Use the vibration evaporation and concentration kettle shown in the figure, the upper head is a flat plate, the middle head is a conical head, the heating chamber diameter is 200mm, and the basin-type porous stirring blades. The jacket is heated by warm water, the vibration frequency of the stirrer is 100Hz, the amplitude is 0.02mm, the heating water temperature is 55±2℃, and the vacuum pressure is -0.098MPa. The quality of the processed material PEDOT:PSS / AgNW composite dispersion is the same as that of the comparative example. The evaporation concentration content is concentrated from 0.45% to 1.1%. After concentration, it is sieved and there is no glue. After discharging, the evaporator wall is clean and there is no glue residue. The concentration loss is about 5%. There is basically no precipitation after being placed for a week. The subsequent preparation of conductive ink has normal dispersion.
[0028] From the loss and precipitation, it can be seen that compared with the comparative example, the evaporation concentration using the utility model equipment has less loss and better quality of the concentrated liquid.
[0029] It should be noted that, in this article, relational terms such as first and second are only used to distinguish an entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or equipment. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or equipment including the elements.
[0030] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various additions, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A vibration evaporation concentration kettle, characterized in that The invention comprises an evaporation chamber (100), wherein the evaporation chamber (100) comprises an evaporation chamber barrel body (110) and a connection seal (120) integral therewith; the connection seal (120) is connected below a heating chamber (200) having a smaller diameter than the evaporation chamber barrel body (110); the heating chamber (200) comprises a heating chamber barrel body (210) and a jacket (220) welded thereto; a discharge port (211) is provided below the heating chamber barrel body (210); the jacket (220) comprises an upper jacket interface (221) and a lower jacket interface (222); the evaporation chamber barrel body (110) is connected above a kettle cover (300) ), the kettle cover (300) includes a stirring hole (310) at the center and a plurality of functional interfaces (320) off-center; a stirring paddle (400) is installed in the stirring hole (310), the stirring paddle (400) is provided with a layer of stirring blades (410), a stirring shaft seal (500) is installed on the stirring hole (310), the shaft end of the stirring paddle (400) protruding from the stirring shaft seal (500) is connected to a vibration coupling (600), and the vibration coupling (600) is connected to a vibration power motor (700); 3-4 legs (800) are connected to the outside of the evaporation chamber (100).
2. A vibration evaporation concentration kettle according to claim 1, characterized in that The stirring blade (410) is a basin-type stirring blade, and the basin-type stirring blade is arranged in the heating chamber (200).
3. A vibration evaporation concentration kettle according to claim 2, characterized in that The bottom of the basin-type stirring blade is covered with air holes (411).
4. A vibration evaporation concentration kettle according to claim 1, characterized in that The evaporation chamber barrel body (110) and the kettle cover (300) are connected via a connecting flange (130), and the kettle cover (300) is an elliptical head cover, a butterfly head cover, or a flat head cover.
5. A vibration evaporation concentration kettle according to claim 1, characterized in that The connecting head (120) is an elliptical head with a circular arc at the folded mouth, or a conical head with a circular arc at the folded mouth.
6. A vibration evaporation concentration kettle according to claim 1, characterized in that The stirring shaft seal (500) is a fluoroplastic composite pan seal.
7. A vibration evaporation concentration kettle according to claim 1, characterized in that The vibration coupling (600) is a spring vibration coupling.