Liquid-liquid extraction tower for efficiently extracting butylene
By designing the No. 1 residual gear to mesh with the tooth groove A of the outer rotating disk and the No. 2 residual gear to mesh with the tooth groove B of the inner rotating disk, the intermittent and counterclockwise rotation of the stirring blades of the liquid-liquid extraction tower is achieved, which solves the problem that the phase interface and separation situation cannot be observed in the existing technology, and improves the extraction efficiency and separation uniformity of butene.
Patent Information
- Application Number
- CN202423166435.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2034-12-20
AI Technical Summary
Existing liquid-liquid extraction towers cannot be intermittently stirred when observing the phase interface and separation, making it impossible to accurately judge the separation and mass transfer effect of the two phases during the extraction process.
The first residual gear is engaged with the tooth groove A of the outer turntable to achieve intermittent rotation of the stirring shaft. The second residual gear is engaged with the tooth groove B of the inner turntable to achieve counterclockwise rotation of the stirring blade. The combination of the inner and outer turntables enables the intermittent and counterclockwise rotation of the stirring blade, allowing observation of droplet sedimentation and separation, and reducing emulsification.
This allows for clear observation of the two-phase liquid changes during the stirring stop interval, reduces emulsification, improves butene extraction efficiency, and ensures uniform butene separation.
Smart Images
Figure CN223716429U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of petroleum chemical industry especially relates to a high -efficient extraction butylene's liquid -liquid extraction column. BACKGROUND
[0002] Butylene is an important chemical raw material, and has a wide application in the chemical industry. In the synthesis of polybutene-1, butylene is an essential raw material, and its product has important application in the field of pipe, film, etc. With the development of chemical industry, the demand for butylene is increasing, which requires efficient butylene separation and purification technology.
[0003] First, according to the properties of butylene and subsequent separation requirements, select the appropriate extractant, first slowly inject the continuous phase into the extraction column, until the specified liquid level height, generally equipped with agitator extraction column, adjust to the appropriate speed, to provide enough energy to promote the mixing of two phases, in the continuous phase stable flow and stirring device normal operation, slowly introduce the dispersed phase into the extraction column, in the extraction process, pay close attention to and strictly control the operation parameters, such as temperature, pressure, flow, etc., regularly from the different parts of the extraction column sampling, analysis of butylene content in the sample, to evaluate the extraction effect, finally stop feeding, close the energy input device, discharge two phase.
[0004] The liquid-liquid extraction column for extracting butylene in the prior art is equipped with an agitator. In the extraction process, the continuous rotation of the stirring blade will make the phase interface fluctuate and disturb continuously, which is not conducive to observing the position, definition and whether there is emulsification phenomenon of the phase interface, etc. If the stirring blade cannot rotate intermittently, it cannot stop stirring when observation is needed, and relatively stable observation conditions cannot be created, so that the separation of two phases and the mass transfer effect in the extraction process cannot be accurately judged. Therefore, the liquid-liquid extraction column for extracting butylene is proposed to solve the above problems. CONTENT OF THE UTILITY MODEL
[0005] In order to make up for the above shortcomings, the utility model provides a kind of liquid-liquid extraction column for extracting butylene, to improve the prior art cannot stop stirring when observation is needed, and create relatively stable observation conditions problem.
[0006] In order to achieve the above object, the utility model discloses the following technical scheme: a kind of high-efficiency butylene liquid-liquid extraction column, including liquid-liquid extraction tower main body, the top of the liquid-liquid extraction tower is respectively fixedly connected with support plate, the side of the support plate is fixedly installed with motor, the output end of the motor is fixedly connected with rotating rod by coupling, the surface of the rotating rod is fixedly sleeved with outer turntable, the top of the liquid-liquid extraction tower main body is fixedly penetrated with stirring shaft by bearing, the surface of the stirring shaft is fixedly connected with stirring blade, the surface of the stirring shaft is fixedly sleeved with one residual gear, the end surface of the outer turntable is provided with tooth slot A, the edge of the one residual gear is in contact with the end surface of outer turntable, the one residual gear is arranged in cooperation with the tooth slot of outer turntable, the end surface of the outer turntable is provided with one sliding slot, reverse subassembly is arranged on the stirring shaft.
[0007] As further description of the above technical solution: the reverse subassembly includes inner turntable, the inner turntable is fixedly sleeved on the surface of rotating rod, one end of the inner turntable is fixedly connected to the inner side of outer turntable, the surface of the stirring shaft is fixedly sleeved with two residual gears, the end surface of the inner turntable is provided with tooth slot B, the edge of the two residual gears is in contact with the end surface of inner turntable, the two residual gears are arranged in cooperation with tooth slot B, the end surface of the inner turntable is provided with two sliding slots.
[0008] As further description of the above technical solution: the inner side of the inner turntable is hinged with one extrusion plate by torsion spring, the inner side of the outer turntable is respectively hinged with two extrusion plates by torsion spring, the end surface of the one residual gear is fixedly connected with two one lever, the end surface of the two residual gears is respectively fixedly connected with four two levers.
[0009] As further description of the above technical solution: the interval of tooth slot A and tooth slot B is consistent, the number of tooth slot B is half of the number of tooth slot A opened on the outer turntable.
[0010] As further description of the above technical solution: the two sides of the one residual gear are symmetrically provided with tooth A, the four around of the two residual gears are symmetrically provided with tooth B, the tooth interval of tooth A and tooth B is consistent.
[0011] As further description of the above technical solution: two the two levers are diagonally distributed, the number of one lever is four and is symmetrically distributed around.
[0012] As further description of the above technical solution: the groove wall corner of one sliding slot and two sliding slots is all provided as bevel.
[0013] As a further description of the above technical solutions: the inner side of the inner rotating disc is fixedly connected with a first baffle, the inner side of the outer rotating disc is fixedly connected with a second baffle, the first baffle is arranged in cooperation with a first extrusion plate, and the second baffle is arranged in cooperation with a second extrusion plate.
[0014] The utility model has the advantages of the following beneficial effects:
[0015] 1. In the utility model, the intermittent rotation of the stirring blade is realized by the cooperation of the first residual gear and the tooth groove A arranged on the outer rotating disc, the transparent material enables the change of the two-phase liquid under the static and stirring states to be clearly observed during the intermittent rotation of the stirring blade, the settlement and coalescence of the liquid drops can be observed during the intermittent period of the stirring stop, and the emulsification phenomenon is reduced.
[0016] 2. In the utility model, the cooperation of the second residual gear and the tooth groove B arranged on the inner rotating disc, the vortex generated by the rotation of the stirring blade under the counterclockwise rotation is stopped, so that the separation of butylene in the liquid-liquid extraction tower body is observed, the liquid accumulated in the local area is dispersed to other areas by changing the flow direction of the liquid, the distribution of the two phases in the entire extraction tower is more uniform, and the extraction efficiency of butylene is improved. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 A front view of the liquid-liquid extraction tower for efficiently extracting butylene is provided for the utility model;
[0018] Figure 2 A rear view of the liquid-liquid extraction tower for efficiently extracting butylene is provided for the utility model;
[0019] Figure 3 A schematic view of the stirring shaft, the first residual gear, the second residual gear, the outer rotating disc, the inner rotating disc and the stirring blade of the liquid-liquid extraction tower for efficiently extracting butylene is provided for the utility model;
[0020] Figure 4 A separation schematic view of the stirring shaft, the first residual gear, the second residual gear, the outer rotating disc, the inner rotating disc and the stirring blade of the liquid-liquid extraction tower for efficiently extracting butylene is provided for the utility model;
[0021] Figure 5 A structural schematic view of the inner rotating disc of the liquid-liquid extraction tower for efficiently extracting butylene is provided for the utility model;
[0022] Figure 6 A structural schematic view of the outer rotating disc of the liquid-liquid extraction tower for efficiently extracting butylene is provided for the utility model.
[0023] LEGEND:
[0024] 1, liquid-liquid extraction column main body; 2, rotating rod; 3, outer rotating disc; 4, inner rotating disc; 5, stirring shaft; 6, No. 1 residual gear; 7, No. 2 residual gear; 8, support plate; 9, motor; 10, stirring blade; 11, No. 1 sliding groove; 12, No. 1 push rod; 13, No. 2 push rod; 14, No. 1 extrusion plate; 15, No. 1 baffle; 16, No. 2 baffle; 17, No. 2 extrusion plate; 18, No. 2 sliding groove. DETAILED DESCRIPTION
[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only 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 skilled in the art without creative labor fall within the scope of the present application.
[0026] Referring to Figure 1 , Figure 3 An embodiment provided by the present application: a liquid-liquid extraction column for efficient extraction of butene, comprising a liquid-liquid extraction column main body 1, which is transparent. The liquid-liquid extraction column utilizes the different solubility or distribution coefficients of solutes in two mutually insoluble or slightly soluble solvents, so that the solute is transferred from one solvent to another, thereby realizing the separation of the mixture. The top of the liquid-liquid extraction column is fixedly connected with a support plate 8, one side of the support plate 8 is fixedly installed with a motor 9, the support plate 8 plays a supporting and installing role for the motor 9, the output end of the motor 9 is fixedly connected with a rotating rod 2 through a shaft coupling, so that one end of the rotating rod 2 rotates through the output end of the motor 9, an outer rotating disc 3 is fixedly sleeved on the surface of the rotating rod 2, so that the outer rotating disc 3 can rotate with the rotating rod 2, a stirring shaft 5 penetrates through the top of the liquid-liquid extraction column main body 1 through a bearing, the bearing improves the stability of the stirring shaft 5 during rotation, a plurality of stirring blades 10 are fixedly connected to the surface of the stirring shaft 5, the number of the stirring blades 10 is set according to the size of the liquid-liquid extraction column main body 1, a No. 1 residual gear 6 is fixedly sleeved on the surface of the stirring shaft 5, a gear slot A is formed in the end face of the outer rotating disc 3, the edge of the No. 1 residual gear 6 is in contact with the end face of the outer rotating disc 3, the No. 1 residual gear 6 is arranged in cooperation with the gear slot of the outer rotating disc 3, the inner rotating disc 4 and the outer rotating disc 3 are driven to rotate clockwise by the No. 1 residual gear 6, a No. 1 sliding groove 11 is formed in the end face of the outer rotating disc 3, when the No. 1 residual gear 6 is disengaged from the gear slot A of the outer rotating disc 3, the No. 1 residual gear 6 is not in contact with the outer rotating disc 3 under the action of the No. 1 sliding groove 11, and a reversing assembly is arranged on the stirring shaft.
[0027] Referring to Figure 3 、 Figure 4The reversing assembly comprises an inner rotating disc 4 fixedly sleeved on the surface of the rotating rod 2, so that the inner rotating disc 4 can rotate with the rotating rod 2; one end of the inner rotating disc 4 is fixedly connected to the inner side of the outer rotating disc 3, so that the rotating rod 2 drives the inner rotating disc 4 and the outer rotating disc 3 to rotate in the same direction; the surface of the stirring shaft 5 is fixedly sleeved with a second residual gear 7; the first residual gear 6 is symmetrically provided with teeth A on both sides; the second residual gear 7 is symmetrically provided with teeth B around; the teeth A and the teeth B have the same tooth spacing; the stroke of the teeth A rotating clockwise in cooperation with the tooth groove A is greater than the stroke of the teeth B rotating counterclockwise in cooperation with the tooth groove B; the end surface of the inner rotating disc 4 is provided with the tooth groove B; the edge of the second residual gear 7 is in contact with the end surface of the inner rotating disc 4; the second residual gear 7 is arranged in cooperation with the tooth groove B; the second residual gear 7 is used for driving the inner rotating disc 4 and the outer rotating disc 3 to rotate counterclockwise; the end surface of the inner rotating disc 4 is provided with a second sliding groove 18; the groove walls of the first sliding groove 11 and the second sliding groove 18 are both provided with inclined surfaces at the edges; the inclined surfaces of the first sliding groove 11 and the second sliding groove 18 are respectively used for correcting the first residual gear 6 and the second residual gear 7; when the second residual gear 7 is disengaged from the tooth groove B of the inner rotating disc 4, the second residual gear 7 is not in contact with the inner rotating disc 4 under the action of the second sliding groove 18; the tooth groove A has the same spacing as the tooth groove B; the number of the tooth groove B is half of the number of the tooth groove A provided on the outer rotating disc 3; the stirring shaft 5 rotates clockwise under the cooperation of the outer rotating disc 3 and the first residual gear 6; the stirring shaft 5 rotates counterclockwise under the cooperation of the inner rotating disc 4 and the second residual gear 7; the counterclockwise rotating stroke is half of the clockwise rotating stroke.
[0028] Referring to Figure 5 , Figure 6The inner side of the inner rotating disc 4 is hingedly connected with a first extrusion plate 14 through a torsion spring, and the inner side of the outer rotating disc 3 is respectively hingedly connected with a second extrusion plate 17 through a torsion spring, so that the first extrusion plate 14 and the second extrusion plate 17 can rotate around the hinge, and the first extrusion plate 14 and the second extrusion plate 17 can rebound after being pressed through the torsion spring. The end surface of the first residual gear 6 is fixedly connected with two first shift rods 12, when the first residual gear 6 is disengaged from the tooth groove A, the two first shift rods 12 are driven to rotate 180 degrees. The end surface of the second residual gear 7 is respectively fixedly connected with four second shift rods 13, when the second residual gear 7 is disengaged from the tooth groove B, the two second shift rods 13 are driven to rotate 45 degrees. The two second shift rods 13 are diagonally distributed. The number of the first shift rods 12 is four and they are symmetrically distributed around. The clockwise and counterclockwise rotating stroke of the stirring shaft 5 is limited according to the number of the first shift rods 12 and the second shift rods 13. The inner side of the inner rotating disc 4 is fixedly connected with a first baffle 15, and the inner side of the outer rotating disc 3 is fixedly connected with a second baffle 16. The first baffle 15 is arranged in cooperation with the first extrusion plate 14, and the second baffle 16 is arranged in cooperation with the second extrusion plate 17. The first baffle 15 and the second baffle 16 respectively play a limiting role with the first extrusion plate 14 and the second extrusion plate 17. When the first extrusion plate 14 or the second extrusion plate 17 rotates around the hinge to the maximum stroke, it will be stopped by the first limiting plate or the second limiting plate.
[0029] Working principle: through the setting of liquid-liquid extraction column using solute in two mutually insoluble or slightly soluble solubility or distribution coefficient of different, make solute from one solvent to another solvent, so as to realize the separation of mixture, need to accelerate the internal mixture separation, just start motor 9, make the output shaft of motor 9 drive the rotation of the rotating rod 2, rotating rod 2 drives the outer rotating disc 3 and inner rotating disc 4 to rotate in the same direction respectively, when the slot A on the outer rotating disc 3 rotates to the edge of the first residual gear 6, the first residual gear 6 end face is extruded by the second extrusion plate 17 on the inner side of the outer rotating disc 3, at this time, the second extrusion plate 17 is extruded around the hinge torsional spring, until the first residual gear 6 tooth enters the tooth slot A, the second extrusion plate 17 is rebounded under the elastic potential of the torsional spring, with the continuous rotation of the outer rotating disc 3, further drive the stirring shaft 5 to rotate clockwise, when the first gear is disengaged from the tooth slot of the outer rotating disc 3, since the inner rotating disc 4 and the outer rotating disc 3 are fixedly connected, the inner rotating disc 4 rotates with the outer rotating disc 3, at this time, the inner rotating disc 4 rotates to the vicinity of the tooth slot B, the second extrusion plate 17 on the second residual gear 7 is extruded by the first extrusion plate 14, at this time, the first extrusion plate 14 is extruded around the hinge torsional spring, until the second residual gear 7 tooth enters the tooth slot B, the first extrusion plate 14 is rebounded under the elastic potential of the torsional spring, at this time, the first residual gear 6 is located at the first sliding slot 11 and is in a freely rotatable state, through the meshing of the second residual gear 7 and the tooth slot B, the second residual gear 7 rotates to the opposite direction of the first residual gear, further drives the stirring shaft 5 to rotate counterclockwise, the counterclockwise rotation stroke is one fourth of the clockwise rotation stroke; the intermittent stirring of the stirring blade 10 is realized, and the vortex is stopped counterclockwise, the stirring blade 10 under the clockwise rotation can accelerate the separation of butene in the liquid-liquid extraction column main body 1, the vortex under the counterclockwise rotation of the stirring blade 10 is stopped, so as to observe the separation of the mixture in the liquid-liquid extraction column main body 1.
[0030] Finally, it should be pointed out that: the above only for preferred embodiments of the present application, and not for limiting the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can modify the technical scheme recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, should be included in the protection scope of the present application.
Claims
1. A liquid-liquid extraction column for efficient extraction of butenes, comprising a liquid-liquid extraction column body (1), characterized in that: The top of the liquid-liquid extraction tower is fixedly connected with a support plate (8), one side of the support plate (8) is fixedly installed with a motor (9), the output end of the motor (9) is fixedly connected with a rotating rod (2) through a shaft coupling, the surface of the rotating rod (2) is fixedly sleeved with an outer turntable (3), the top of the liquid-liquid extraction tower body (1) is fixedly penetrated with a stirring shaft (5) through a bearing, the surface of the stirring shaft (5) is fixedly connected with stirring blades (10), the surface of the stirring shaft (5) is fixedly sleeved with a first residual gear (6), the end face of the outer turntable (3) is provided with a gear slot A, the edge of the first residual gear (6) is in contact with the end face of the outer turntable (3), the first residual gear (6) is arranged in cooperation with the gear slot of the outer turntable (3), the end face of the outer turntable (3) is provided with a first sliding groove (11), and the stirring shaft (5) is provided with a reversing assembly.
2. The liquid-liquid extraction column for efficient extraction of butenes according to claim 1, characterized in that: The reversing assembly comprises an inner turntable (4), the inner turntable (4) is fixedly sleeved on the surface of the rotating rod (2), one end of the inner turntable (4) is fixedly connected to the inner side of the outer turntable (3), the surface of the stirring shaft (5) is fixedly sleeved with a second residual gear (7), the end face of the inner turntable (4) is provided with a gear slot B, the edge of the second residual gear (7) is in contact with the end face of the inner turntable (4), the second residual gear (7) is arranged in cooperation with the gear slot B, and the end face of the inner turntable (4) is provided with a second sliding groove (18).
3. The liquid-liquid extraction column for efficient extraction of butenes according to claim 2, characterized in that: The inner side of the inner turntable (4) is hinged with a first extrusion plate (14) through a torsional spring, the inner side of the outer turntable (3) is respectively hinged with a second extrusion plate (17) through a torsional spring, the end face of the first residual gear (6) is fixedly connected with two first push rods (12), and the end face of the second residual gear (7) is respectively fixedly connected with four second push rods (13).
4. The liquid-liquid extraction column for efficient extraction of butenes according to claim 2, characterized in that: The distance between the gear slot A and the gear slot B is consistent, and the number of the gear slot B is half of the number of the gear slot A provided on the outer turntable (3).
5. The liquid-liquid extraction column for efficient extraction of butenes according to claim 2, characterized in that: The two sides of the first residual gear (6) are symmetrically provided with teeth A, and the four peripheries of the second residual gear (7) are symmetrically provided with teeth B, and the tooth spacing of the teeth A and the teeth B is consistent.
6. The liquid-liquid extraction column for efficient extraction of butenes according to claim 3, characterized in that: The two second push rods (13) are diagonally distributed, the number of the first push rod (12) is four and is symmetrically distributed around.
7. The liquid-liquid extraction column for efficient extraction of butenes according to claim 2, characterized in that: The groove walls of the first sliding groove (11) and the second sliding groove (18) are provided with inclined surfaces at the corners.
8. The liquid-liquid extraction column for efficient extraction of butenes according to claim 2, characterized in that: The inner side of the inner turntable (4) is fixedly connected with a first baffle (15), the inner side of the outer turntable (3) is fixedly connected with a second baffle (16), the first baffle (15) is arranged in cooperation with the first extrusion plate (14), and the second baffle (16) is arranged in cooperation with the second extrusion plate (17).