A cyclone-shear type high gravity distillation column

Abstract

The present invention relates to the technical field of distillation equipment, and in particular to a cyclone shearing type ultra-gravity distillation tower, comprising a tower body, a rotating shaft, an active rotor and a driven rotor, wherein an active ring on the active rotor and a driven ring on the driven rotor are interlaced and matched to form a bent baffle channel, and at the same time, a film-forming net on the driven rotor surrounds the outside of the active ring, and by improving the stator in the original cyclone shearing type ultra-gravity distillation tower, the originally stationary stator is transformed into a driven rotor rotating in the opposite direction to the rotor, and at the same time, the film-forming net suspended on the driven rotor is used to further optimize the distribution of liquid film, liquid filaments and liquid droplets sprayed from the fisheye spray holes on the active rotor, and at the same time, the liquid flow rate is slightly delayed, so that the shearing effect of the gas and liquid phases is increased, the mass transfer effect is enhanced, and the distillation efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of rectification equipment, and particularly relates to a cyclone shearing type high gravity rectification column. Background Art

[0002] At present, most rectification systems use packing. The working principle of a cyclone shearing type high gravity rectification column is the same as that of ordinary rectification, that is, based on the difference in relative volatility (or boiling point) of each component in the solution, through multiple partial condensations and vaporizations, the components are separated. The difference is that the cyclone shearing type high gravity rectification column completes this multiple partial condensation and vaporization process in a high gravity field, and the separation efficiency is far superior to that of ordinary rectification. Essentially, in the traditional rectification column process, the most basic gas-liquid mass transfer unit is a bubble, while in the high gravity rotating rectification process, there are only liquid films, liquid droplets and the gas phase filling the packing space in the packing, without bubbles, and the basic gas-liquid mass transfer units are liquid films, liquid filaments and liquid droplets.

[0003] Specifically, an ordinary rectification column (plate type or packed column) completes heat and mass transfer between the vapor and liquid phases under the action of the earth's gravity field (i.e., under the action of 1 g), and then realizes the separation of product components. Due to the small flooding velocity of the ordinary column in the gravity field, generally within 1.5 - 1.6 m / s, the vapor phase velocity must be < the liquid phase velocity, otherwise flooding will occur, and at that time the rectification operation cannot be carried out, thus restricting the increase of the vapor velocity in the column, and the intensification of gas-liquid mass transfer is also correspondingly restricted; while the "high gravity rectification device" realizes the environment of a high gravity field (under the action of 10 - 1000 g) through the centrifugal force generated by high-speed rotation, that is, the high gravity factor β (ω2r / g) usually reaches about 350 - 450. In this environment, the velocities of the vapor and liquid phases are greatly increased, and the velocity can reach 4 - 12 m / s, thus greatly increasing the flooding velocity. The liquid in the column is torn into liquid films, liquid filaments and liquid droplets with a size ranging from micrometers to nanometers at high speed, thus greatly intensifying the heat and mass transfer process between the vapor and liquid phases, and making the mass transfer efficiency more than ten times higher than that of an ordinary column. The required equipment volume for the same production capacity is greatly reduced (the height is reduced by 8 - 10 times), and the separation effect is also greatly improved (the number of theoretical plates per unit volume is greatly increased, and the height of the theoretical plate is only about 1 cm).

[0004] In the Chinese patent with the patent application number 201220066902.1, a cyclone shearing type high gravity rectification column is disclosed, which is the existing conventional cyclone shearing type high gravity rectification column, but there are still many problems in the use of this kind of column. 1. After the liquid is centrifugally dispersed, under the action of centrifugal force, the contact time between the vapor and liquid phases is short, and the heat and mass transfer time between the vapor and liquid phases is insufficient, and the efficiency still needs to be improved; 2. The gas phase substance flows reversely in the column, and due to the influence of the centrifugal force of the liquid phase substance, the resistance for the gas phase substance to enter the rotor is large.

[0005] In a Chinese patent with the patent application number 201910231172.2, a disk for the rotor structure of a mixed-flow high-gravity rotating bed is disclosed, which allows gas-phase substances to enter the rotor from the radial and axial directions of the rotor. However, this solution will correspondingly cause the liquid-phase substances to quickly detach from the rotor axially.

[0006] Therefore, there is an urgent need for a technical solution for a swirl-shear high-gravity rectification column with higher heat and mass transfer efficiency and smoother gas flow. Summary of the Invention

[0007] In view of the above problems, the present invention provides a swirl-shear high-gravity rectification column. By improving the stator in the original swirl-shear high-gravity rectification column, the originally stationary stator is transformed into a driven rotor that rotates in the opposite direction to the rotor. At the same time, a film-forming mesh suspended on the driven rotor is used to further optimize the liquid film distribution of the liquid film, liquid filaments, and liquid droplets ejected from the fish-eye spray holes on the active rotor, and at the same time slightly delay the liquid flow velocity, so as to increase the shear action between the gas and liquid phases, strengthen the mass transfer effect, and thus improve the rectification efficiency.

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] A swirl-shear high-gravity rectification column, comprising:

[0010] A tower body, a rotating shaft, an active rotor, and a driven rotor;

[0011] The tower body is arranged in a cylindrical shape, and a rectification cavity is arranged inside the tower body;

[0012] The rotating shaft is coaxially and rotatably installed on the central axis of the tower body;

[0013] The active rotor is installed in the rectification cavity, and the active rotor is driven to rotate by the coaxially arranged rotating shaft. The active rotor is upwardly convexly provided with several concentrically sleeved active rings, and fish-eye spray holes protruding outward are formed on the side walls of the active rings;

[0014] The driven rotor is suspended above the active rotor, and the driven rotor is driven by the active rotor to rotate in the opposite direction to the active rotor. The driven rotor is downwardly convexly provided with several concentrically sleeved driven rings, and the driven rings and the active rings are mutually inserted and matched to form a bent baffle channel. The driven rotor is downwardly convexly provided with a film-forming mesh corresponding to and concentrically sleeved around the corresponding active rings, and a plurality of film-forming mesh holes are uniformly distributed on the film-forming mesh.

[0015] As an improvement, the film-forming mesh is eccentrically arranged with respect to the active ring, and the inner side wall of the film-forming mesh is tangent to the outer side wall of the active ring.

[0016] As an improvement, a gas phase outlet is provided at the top of the tower body, a gas phase inlet and a residual liquid inlet are provided at the bottom of the tower body, and a plurality of liquid phase feed inlets are provided at equal intervals in the vertical direction on the side wall of the tower body, a reflux port is provided above the liquid phase feed inlet, and a liquid phase feed pipe installed at the liquid phase feed inlet extends toward the center of the tower body, and the outlet of the liquid phase feed pipe is located at the center of the active rotor;

[0017] A tower top thermometer and a tower bottom thermometer are respectively arranged at the top and the bottom of the tower body.

[0018] As an improvement, the rotating shaft is driven by a driving device arranged at the bottom of the tower body, which includes a driver and a transmission unit. The driver is installed on one side of the tower body, and the driver is connected to the rotating shaft through the bottom of the tower body through the transmission unit.

[0019] As an improvement, the rotating shaft is provided with a guide blade at the center of the active rotor, and the guide blade rotates synchronously with the rotating shaft.

[0020] As an improvement, the driving rotor and the driven rotor are transmission-connected via a planetary gear set disposed at the rotating shaft, and the angular speed ratio of the driving rotor to the driven rotor is 6:1-3:1.

[0021] As an improvement, inclined guide vanes are provided on the side walls of the driven ring located on the outer ring of the driven rotor. When the driven rotor rotates, the guide vanes rotate to inhale the gas below.

[0022] As an improvement, an oblique exhaust waist hole is arranged at the center position of the driven rotor, and an air dispersion impeller is arranged above the exhaust waist hole.

[0023] As an improvement, a liquid surrounding plate is arranged around the exhaust waist hole at the center position of the driven rotor, and adjacent exhaust waist holes are separated by liquid partition plates, and the outlet of the liquid phase feed pipe is located above the area surrounded by the liquid surrounding plate.

[0024] As an improvement, a roller seat for bearing the rotation of the driven rotor is arranged at the outer circumferential edge of the driven rotor, and the roller seat is fixedly connected to the inner side wall of the tower body;

[0025] The outer circumference of the driven rotor is provided with communication holes at equal intervals, and the outer sides of the communication holes are surrounded by inclined flanges.

[0026] The beneficial effects of the present invention are:

[0027] (1) The present invention improves the stator in the original cyclone shearing type ultra-gravity distillation tower, so that the originally stationary stator is transformed into a driven rotor that rotates in the opposite direction to the rotor. At the same time, the film-forming net suspended on the driven rotor is used to spray liquid film, liquid filaments and liquid droplets from the fisheye spray holes on the active rotor to further optimize the distribution of the liquid film, and at the same time slightly slow down the liquid flow rate, so that the shearing effect of the gas and liquid phases is increased, the mass transfer effect is enhanced, and the distillation efficiency is improved;

[0028] (2) In the present invention, when the film-forming net rotating with the driven rotor optimizes the distribution of the liquid film, the radial velocity of the liquid is slowed down, but the increase in the angular velocity of the film-forming net relative to the active ring increases the circumferential velocity of the liquid. Therefore, the liquid flow velocity does not change much, nor does it produce too much resistance to the flow of the liquid. It only changes the flow direction of the liquid, and can still well ensure that the gas phase velocity is less than the liquid phase velocity to avoid flooding. At the same time, the film-forming net changes the radial and circumferential velocities of the liquid, and can also well increase the heat transfer and mass transfer time, thereby further improving the distillation efficiency.

[0029] (3) When setting the film-forming net, the present invention fully considers the problem of high-viscosity materials blocking the film-forming net. The film-forming net and the corresponding active ring are innovatively designed to be eccentrically tangent. The fisheye spray holes set on the active ring are used to scrape the film-forming net to remove high-viscosity materials and ensure the circulation of the film-forming net. There is no need to frequently clean and replace the film-forming net. At the same time, the crescent area between the eccentrically set film-forming net and the active ring can optimize the distribution of liquid film, liquid filaments and droplets, and can also drive the entry of gas phase substances, thereby reducing the flow resistance of gas phase substances.

[0030] (4) The present invention is designed to rotate the driven rotor (i.e., the stator in the original cyclone shear type ultra-gravity distillation tower) so that the guide vanes at the outer circumferential edge of the moving blade rotor can suck the external gas phase material into the baffle channel, thereby increasing the input speed of the gas phase material, so that the baffle channel is filled with more gas phase material and the liquid phase material undergoes heat and mass transfer reactions. At the same time, the liquid phase material will not leave the baffle channel too quickly.

[0031] In summary, the present invention has the advantages of strong shearing effect, good mass transfer effect, high distillation efficiency, etc., and is particularly suitable for the technical field of cyclone shearing type ultra-gravity distillation equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the cross-sectional structure of the tower body of the present invention;

[0033] Figure 2 It is a schematic diagram of the internal structure of the tower body of the present invention;

[0034] Figure 3 It is a schematic diagram of the cross-sectional structure of the baffle channel of the present invention;

[0035] Figure 4 Schematic diagram of the three-dimensional structure of the driven rotor of the present invention Figure 1 ;

[0036] Figure 5 Schematic diagram of the three-dimensional structure of the planetary gear set of the present invention;

[0037] Figure 6 Schematic diagram of the three-dimensional structure of the driven rotor of the present invention Figure 2 ;

[0038] Figure 7 Schematic diagram of the inverted three-dimensional structure of the driven rotor of the present invention;

[0039] Figure 8 Schematic diagram of the three-dimensional structure of the driving rotor of the present invention;

[0040] Figure 9 is Figure 8 Schematic diagram of the structure at position A in

[0041] Figure 10 Schematic diagram of the matching structure between the driving ring and the film-forming mesh of the present invention;

[0042] Figure 11 Schematic diagram of the matching structure between the fish-eye spray holes and the film-forming mesh holes of the present invention.

[0043] Reference numerals in the figure: baffle channel 001, tower body 1, rectifying cavity 10, gas phase outlet 11, gas phase inlet 12, residual liquid outlet 13, liquid phase feed inlet 14, liquid phase feed pipe 141, reflux port 15, top thermometer 16, bottom thermometer 17, rotating shaft 2, guide paddle 21, driving rotor 3, driving ring 31, fish-eye spray hole 311, driven rotor 4, driven ring 41, guide vane 411, film-forming mesh 42, film-forming mesh hole 421, exhaust waist hole 43, gas-dispersing impeller 44, liquid surrounding plate 45, liquid separating plate 46, communication hole 47, flange 48, driving device 5, driver 51, transmission unit 52, planetary gear set 6, roller seat 7. Detailed implementation manners

[0044] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0045] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0046] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, the meaning of "a plurality" is two or more unless otherwise specifically defined.

[0047] Embodiment 1:

[0048] As Figures 1 to 11 shown, a cyclone shearing type high gravity rectifying column includes:

[0049] a column body 1, a rotating shaft 2, a driving rotor 3 and a driven rotor 4;

[0050] The column body 1 is arranged in a cylindrical shape, and a rectifying cavity 10 is arranged inside the column body 1;

[0051] The rotating shaft 2 is coaxially and rotatably installed on the central axis of the column body 1;

[0052] The driving rotor 3 is installed inside the rectifying cavity 10. The driving rotor 3 is driven by the coaxially arranged rotating shaft 2 to rotate, and a plurality of concentrically sleeved driving rings 31 are convexly arranged upward on the driving rotor 3. Fish-eye spray holes 311 protruding outward are formed on the side walls of the driving rings 31;

[0053] The driven rotor 4 is suspended above the driving rotor 3. The driven rotor 4 is driven by the driving rotor 3 to rotate in the opposite direction to the driving rotor 3, and a plurality of concentrically sleeved driven rings 41 are convexly arranged downward on the driven rotor 4. The driven rings 41 and the driving rings 31 are mutually inserted and matched to form a bent baffle channel 001. And a film-forming net 42 corresponding to and surrounding the driving rings 31 is convexly arranged downward on the driven rotor 4. A plurality of film-forming mesh holes 421 are uniformly distributed on the film-forming net 42.

[0054] Wherein, the film-forming net 42 and the driving rings 31 are eccentrically arranged, and the inner side wall of the film-forming net 42 is tangent to the outer side wall of the driving rings 31.

[0055] It should be noted that for the driven rotor 4 (i.e., the stator in the original swirl shear type high gravity rectification column) in this application, when it rotates, the effect of the driven ring 41 on it is the same as that of the stator, and it still forms a bent baffle channel 001 by intersecting around the driving ring 31. Therefore, the rotation of the driven rotor 4 will not cause any impact on the rectification work of the swirl shear type high gravity rectification column.

[0056] Furthermore, it should be noted that due to the mesh structure of the film-forming mesh 42 and the fact that the film-forming mesh holes 421 are bound to be smaller than the fish-eye nozzles 311, it will cause blockage of the gas-phase material flow and also cause the film-forming mesh holes 421 to be blocked by the viscous material. However, in this application, an innovative structure of eccentrically setting the film-forming mesh 42 and the driving ring 31 is adopted. The improvement in the fluidity of the gas-phase material brought about by this structure is as follows. Specifically, when the eccentrically set structure of the film-forming mesh 42 rotates, it will disrupt the original gas-phase flow in the baffle channel 001, and then scoop the gas-phase material into the crescent area to form a mass transfer reaction with the liquid film, liquid droplets, and liquid filaments, promoting the fluidity of the gas-phase material.

[0057] Moreover, the tangency between the inner side wall of the film-forming mesh 42 described in this application and the outer side wall of the driving ring 31 means that the film-forming mesh 42 and the fish-eye nozzles 311 on the driving ring 31 are in a state of approaching. During the reverse rotation of the driving ring 31 and the film-forming mesh 42, the protruding part of the fish-eye nozzles 311 from the driving ring 31 can well remove the material adhering to the film-forming mesh 42. And the reverse rotation of the film-forming mesh 42 enables all the fish-eye nozzles 311 on the driving ring 31 to play a role in cleaning the film-forming mesh 42, rather than relying solely on a group of fish-eye nozzles 311 on the driving ring 31 for cleaning, which also ensures the normal flow of the fish-eye nozzles 311.

[0058] It should also be emphasized that the specific structure of the fish-eye nozzles 311 has been specifically disclosed in the Chinese patent with the patent application number 201220066902.1, and this application will not elaborate on it too much here.

[0059] Embodiment 2:

[0060] Referring to Embodiment 1, the difference between Embodiment 2 and Embodiment 1 of the present invention is described as follows:

[0061] As Figure 1As shown, as a preferred embodiment, a gas phase outlet 11 is provided at the top of the tower body 1, and a gas phase inlet 12 and a residual liquid inlet 13 are respectively provided at the bottom of the tower body 1, the gas phase outlet 11 and the gas phase inlet 12 are arranged diagonally, and a plurality of liquid phase feed ports 14 are equidistantly arranged on the side wall of the tower body 1 in the vertical direction, a reflux port 15 is arranged above the liquid phase feed port 14, and a liquid phase feed pipe 141 installed at the liquid phase feed port 14 extends toward the center of the tower body 1, and the outlet of the liquid phase feed pipe 141 is located at the center of the active rotor 3. It should be noted that the liquid phase feed pipe 141 in the present application is preferably arranged in three groups, and three groups of active rotors 3 and driven rotors 4 are respectively arranged in the distillation chamber 10, thereby forming three groups of baffle channels 001 corresponding to the liquid phase feed pipe 141, so that the distillation efficiency of the swirl shear type ultra-gravity distillation tower is increased by multiples;

[0062] In addition, in order to monitor the temperature in the distillation chamber 10 well, a tower top thermometer 16 and a tower bottom thermometer 17 are respectively provided at the top and the bottom of the tower body 1 .

[0063] It should be noted that the gas phase material is input from the gas phase inlet 12, reversely upward from the bottom of the tower body 1, and after heat transfer and mass transfer reaction with the liquid phase material, the gas phase material is output from the gas phase outlet 11 at the top of the tower body 1, and the liquid phase material is directly transported to the center of the active rotor 3 through the liquid phase feed port 14 and the liquid phase feed pipe 141, and then the active rotor 3 breaks up the liquid phase material through centrifugal action to form droplets, liquid filaments and liquid films, and the remaining liquid port 13 is used to remove the liquid phase material in the distillation chamber 10, and the reflux port 15 is to return part of the top distillate to the distillation tower, so that the reflux liquid is fully in contact with the rising steam on the tower plate or packing layer. In this way, the mass transfer area and mass transfer time of the gas-liquid two phases can be increased, and the driving force for the material exchange in the distillation process is provided, thereby improving the separation effect. By adjusting the reflux amount of the reflux port, the gas-liquid balance and mass transfer efficiency in the distillation tower can be controlled to achieve the expected product purity and recovery rate.

[0064] Embodiment 3:

[0065] With reference to Example 1, the differences between Example 3 of the present invention and Example 1 are as follows:

[0066] like Figure 1 As shown, the rotating shaft 2 is driven by a driving device 5 arranged at the bottom of the tower body 1. The driving device 5 includes a driver 51 and a transmission unit 52. The driver 51 is installed on one side of the tower body 1. The driver 51 is connected to the rotating shaft 2 through the bottom of the tower body 1 through the transmission unit 52.

[0067] Specifically, the driver 51 is preferably a three-phase asynchronous motor, and the transmission unit 52 is preferably a belt transmission unit. The driver 51 drives the shaft 2 to rotate in the tower body 1 through the transmission unit 52, and the shaft 2 is rotationally sealed at the rotationally matched part of the tower body 1 through a liquid sealing structure.

[0068] Embodiment 4:

[0069] With reference to Example 1, the differences between Example 4 of the present invention and Example 1 are as follows:

[0070] like Figure 3 As shown, the rotating shaft 2 is provided with a guide blade 21 at the center of the active rotor 3 , and the guide blade 21 rotates synchronously with the rotating shaft 2 .

[0071] It should be noted here that the setting of the guide blades 21 needs to depend on the viscosity and fluidity of the liquid material. For liquid materials with high viscosity and poor fluidity, the centrifugal force of the liquid material can be enhanced by setting the guide blades 21, while at the same time enhancing the suction force on the gas material and improving the fluidity of the gas material in the deflection channel. However, due to the excessively high rotation speed of the rotating shaft 2, the rotation frequency of the guide blades 21 is too high. For liquid materials with low viscosity and good fluidity, the gas flow rate will increase, which is not conducive to the stability of the liquid dynamic balance.

[0072] Embodiment 5:

[0073] With reference to Example 1, the differences between Example 5 of the present invention and Example 1 are as follows:

[0074] like Figure 5 As shown, preferably, the driving rotor 3 and the driven rotor 4 are connected to each other through a planetary gear set 6 arranged at the rotating shaft 2, and the angular speed ratio of the driving rotor 3 to the driven rotor 4 is 6:1-3:1;

[0075] It should be noted that the planetary gear set 6 in the present application is composed of a sun gear, planetary gears and a ring gear, wherein the sun gear is sleeved on the rotating shaft 2, and the planetary gears are arranged equidistantly around the sun gear. The planetary gears are mounted and connected to the side wall of the tower body 1 through a fixed mounting plate, and the ring gear is coaxially connected to the driven rotor. Through the gear transmission unit, the active rotor 3 rotates to drive the driven rotor 4 to rotate in the opposite direction, and through the deceleration of the planetary gear set 6, the rotation speed of the driven rotor 4 is much lower than the rotation speed of the active rotor 3, thereby preventing the high-speed rotating film-forming network from hindering the flow of gas-phase materials.

[0076] Embodiment 6:

[0077] With reference to Example 1, the differences between Example 6 of the present invention and Example 1 are as follows:

[0078] likeFigure 6 As shown, on the side wall of the driven ring 41 located on the outer ring of the driven rotor 4, inclined guide vanes 411 are provided. When the driven rotor 4 rotates, the guide vanes 411 rotate to suck in the gas below.

[0079] It should be noted that through the rotation of the driven rotor 4 and the setting of the guide vanes 411, the outer peripheral edge of the driven rotor 4 can continuously suck in the gas-phase material, improving the speed and efficiency of the gas-phase material entering the baffle channel 001, and enhancing the rectification efficiency of the gas-phase material and the liquid-phase material.

[0080] Embodiment 7:

[0081] Referring to Embodiment 1, the difference between Embodiment 7 and Embodiment 1 of the present invention is described as follows:

[0082] As Figures 4 to 6 shown, an obliquely arranged exhaust waist hole 43 is provided at the central position of the driven rotor 4, and a gas-dispersing impeller 44 is provided above the exhaust waist hole 43.

[0083] Among them, a liquid surrounding plate 45 is arranged around the exhaust waist hole 43 at the central position of the driven rotor 4, and adjacent exhaust waist holes 43 are separated by a liquid separating plate 46. The outlet of the liquid feed pipe 141 is located above the area surrounded by the liquid surrounding plate 45, and the liquid-phase material is input through one group of exhaust waist holes 43 when the liquid feed pipe 141 inputs the liquid-phase material.

[0084] Furthermore, a roller seat 7 for supporting its rotation is provided at the outer peripheral edge of the driven rotor 4, and the roller seat 7 is fixedly connected to the inner side wall of the tower body 1;

[0085] In addition, communication holes 47 are equidistantly opened at the outer peripheral edge of the driven rotor 4, and inclined flanges 48 are arranged around the outside of the communication holes 47.

[0086] It should be noted that the gas-phase material entering the baffle channel 001 is finally discharged outward through the exhaust waist hole 43. In order to improve the fluidity of the gas-phase material, a gas-dispersing impeller 44 is provided above the exhaust waist hole 43. By using the rotation of the gas-dispersing impeller 44, the gas at the exhaust waist hole 43 can quickly escape.

[0087] Furthermore, it should be noted that in order to improve the rotation stability of the driven rotor 4, a roller seat 7 is provided at the outer peripheral edge of the driven rotor 4. By using the bearing and rolling characteristics of the roller seat 7, the smooth operation of the driven rotor 4 is ensured.

[0088] Furthermore, between the active rotor and the driven rotor of each layer, the gas-phase material and the liquid-phase material flow through the communication hole 47, so that the liquid-phase material in the upper layer can be discharged to the lower layer, and at the same time, the gas-phase material in the lower layer can flow reversely to the upper layer.

[0089] Application Example 1:

[0090] There is an ammonia water recovery system applying the cyclone shearing high gravity rectification column of the present application. The low-concentration waste ammonia water generated in the production process can be rectified and concentrated by the ammonia water recovery system into industrial ammonia water with an ammonia content of more than 20% for recycling.

[0091] Specifically, in this application example, the waste ammonia water contains about 5% ammonia. After rectification, the concentration of the product ammonia water is 23 - 30%. By using the cooperation of the multi-layer active rotor and the transmission rotor, the mass transfer efficiency is high, the feeding and discharging are convenient, and it is continuously recovered. The content of materials in the waste liquid at the bottom of the tower is low, the product concentration is stable, the distillation efficiency is high, and the operation cost is low. Under the same conditions, the concentration of the product ammonia water that can be achieved by the existing cyclone shearing high gravity rectification column after rectification is 17 - 25%.

[0092] Application Example 2:

[0093] There is a solvent recovery system applying the cyclone shearing high gravity rectification column of the present application, which is suitable for the recovery and concentration of solvents such as low-concentration methanol, ethanol, and acetone. For example, when the solvent recovery system of the present application recovers ethanol, the recovery rate is greater than 97.5%, while the existing cyclone shearing high gravity rectification column can only reach a recovery rate of 95%. Moreover, the solvent concentration in the discharged wastewater can reach below 0.5%.

[0094] In addition, due to the small volume of the tower body, no packing, less retained liquid, and short liquid holding time, generally only 1 - 5 minutes, the effect of energy saving of 10 - 30% can be achieved.

[0095] Compared with the traditional packed tower, the volume and height of the cyclone shearing high gravity rectification column of the present application are much smaller. The specific comparison data is as follows:

[0096]

[0097] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A cyclone shearing type ultra-gravity distillation tower, characterized in that: include: A tower body (1), a rotating shaft (2), a driving rotor (3) and a driven rotor (4); The tower body (1) is arranged in a cylindrical shape, and a distillation chamber (10) is arranged inside the tower body (1); The rotating shaft (2) is coaxially rotatably mounted on the central axis of the tower body (1); The active rotor (3) is installed in the distillation chamber (10), the active rotor (3) is driven to rotate by the coaxial rotating shaft (2), and the active rotor (3) is upwardly protruding and provided with a plurality of concentrically sleeved active rings (31), and the side walls of the active rings (31) are each provided with outwardly protruding fish-eye spray holes (311); The driven rotor (4) is suspended above the active rotor (3), the driven rotor (4) is driven by the active rotor (3) and rotates in the opposite direction to the active rotor (3), and the driven rotor (4) is protruding downward and is provided with a plurality of concentrically sleeved driven circles (41), the driven circles (41) and the active circles (31) are interlaced and cooperated with each other to form a bent deflection channel (00), and the driven rotor (4) is protruding downward and is provided with a film-forming net (42) corresponding to the corresponding active circle (31), the film-forming net (42) is evenly distributed with a plurality of film-forming meshes (421), the film-forming net (42) is eccentrically arranged with respect to the active circle (31), and the inner side wall of the film-forming net (42) is tangent to the outer side wall of the active circle (31).

2. A cyclone shearing type ultra-gravity distillation tower according to claim 1, characterized in that: The top of the tower body (1) is provided with a gas phase outlet (11), the bottom of the tower body (1) is provided with a gas phase inlet (12) and a residual liquid outlet (13), and a plurality of liquid phase feed inlets (14) are equidistantly arranged on the side wall of the tower body (1) in the vertical direction, a reflux port (15) is arranged above the liquid phase feed inlet (14), and a liquid phase feed pipe (141) installed at the liquid phase feed inlet (14) extends toward the center of the tower body (1), and the outlet of the liquid phase feed pipe (141) is located at the center of the active rotor (3); A tower top thermometer (16) and a tower bottom thermometer (17) are respectively arranged at the top and the bottom of the tower body (1).

3. A cyclone shearing type ultra-gravity distillation tower according to claim 1, characterized in that: The rotating shaft (2) is driven by a driving device (5) arranged at the bottom of the tower body (1), the driving device (5) comprising a driver (51) and a transmission unit (52), the driver (51) being installed at one side of the tower body (1), and the driver (51) being connected to the bottom of the rotating shaft (2) passing through the tower body (1) through the transmission unit (52).

4. A cyclone shearing type ultra-gravity distillation tower according to claim 1, characterized in that: The rotating shaft (2) is provided with a guide blade (21) at the center of the active rotor (3), and the guide blade (21) rotates synchronously with the rotating shaft (2).

5. The cyclone shearing type ultra-gravity distillation tower according to claim 1, characterized in that: The driving rotor (3) and the driven rotor (4) are transmission-connected via a planetary gear set (6) disposed at the rotating shaft (2), and the angular speed ratio between the driving rotor (3) and the driven rotor (4) is 6:1-3:

1.

6. The cyclone shearing type ultra-gravity distillation tower according to claim 1, characterized in that: Inclined guide vanes (411) are provided on the side walls of the driven ring (41) located on the outer ring of the driven rotor (4); when the driven rotor (4) rotates, the guide vanes (411) rotate to inhale gas below.

7. The cyclone shearing type ultra-gravity distillation tower according to claim 2, characterized in that: An oblique exhaust waist hole (43) is provided at the center of the driven rotor (4), and a diffuser impeller (44) is provided above the exhaust waist hole (43).

8. A cyclone shearing type ultra-gravity distillation tower according to claim 7, characterized in that: A liquid surrounding plate (45) is provided around the exhaust waist hole (43) at the center position of the driven rotor (4), and adjacent exhaust waist holes (43) are separated by liquid partition plates (46), and the outlet of the liquid phase feed pipe (141) is located above the area surrounded by the liquid surrounding plate (45).

9. The cyclone shearing type ultra-gravity distillation tower according to claim 1, characterized in that: A roller seat (7) for supporting the rotation of the driven rotor (4) is arranged at the outer circumferential edge of the driven rotor (4), and the roller seat (7) is fixedly connected to the inner side wall of the tower body (1); The outer circumference of the driven rotor (4) is provided with communication holes (47) at equal intervals, and the outer sides of the communication holes (47) are surrounded by inclined flanges (48).

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