MVR (Mechanical Vapor Recompression) mother liquor salt steaming kettle
By adopting a conical double-spiral and paddle structure in the MVR mother liquor salt distillation kettle, combined with auxiliary evaporation components, the problems of low evaporation efficiency and difficult discharge were solved, achieving efficient evaporation and automatic separation, and improving the continuity and stability of production.
Patent Information
- Application Number
- CN202520151874.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-22
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-01-22
AI Technical Summary
The existing MVR mother liquor distillation kettle suffers from low evaporation efficiency and difficulty in discharging the material.
The vessel adopts a cylindrical structure with a conical bottom, equipped with a conical double spiral ribbon and blades, combined with auxiliary evaporation components, including a limiting plate, an attachment cloth, and a movable sleeve. The conical double spiral ribbon and blades are rotated by a stirring shaft to achieve rapid evaporation and automatic separation of salt.
It improved evaporation efficiency, reduced labor intensity, and enabled rapid salt discharge and continuous and stable production.
Smart Images
Figure CN223779992U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of salt distillation kettle technology, and more specifically to an MVR mother liquor salt distillation kettle. Background Technology
[0002] Salt steaming kettles are mainly used for salt production. They are containers that use heating to evaporate brine or seawater containing salt. During the heating process, the water gradually turns into steam and dissipates, while the salt remains in the kettle. As the water decreases, the salt concentration continuously increases until it reaches saturation and crystallizes out.
[0003] Most currently used stirred salt distillation kettles have a cylindrical body with an elliptical bottom. As the water in the MVR mother liquor gradually evaporates, the salt gradually accumulates at the bottom of the kettle. This salt has a high viscosity, making it difficult to stir and carry away, and the water content in the salt is also difficult to evaporate, resulting in low evaporation efficiency. Because the salt accumulates and settles at the bottom of the evaporation kettle, discharging the product after evaporation is also difficult. Therefore, we propose a new MVR mother liquor salt distillation kettle. Utility Model Content
[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an MVR mother liquor distillation kettle to solve the problems of low evaporation efficiency and difficult discharge of MVR mother liquor.
[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: an MVR mother liquor distillation kettle, including a kettle body, a kettle cover, a motor drive device, a jacket, a stirring shaft, a conical double helical ribbon, and a paddle. The kettle body has a cylindrical structure in the middle and a conical structure at the bottom. The kettle cover is located at the upper end of the kettle body and is elliptical. The motor drive device is located on the kettle cover and is equipped with a coupling. The stirring shaft is located inside the kettle body and is connected to the coupling on the motor drive device. The paddle is located in the middle of the stirring shaft, and the conical double helical ribbon is located in the lower part of the stirring shaft. Both the conical double helical ribbon and the paddle are fixedly connected to the stirring shaft. The cone angle of the conical double helical ribbon is 60 degrees. A salt outlet is provided at the bottom of the kettle body.
[0006] Preferably, a fixing ring plate is installed in the middle of the inner side of the vessel body, and the position of the fixing ring plate corresponds to the position of the impeller. An auxiliary evaporation component is provided on the inner side of the fixing ring plate.
[0007] Preferably, the auxiliary evaporation assembly includes a limiting plate, an attachment cloth, and a fixing rod. The limiting plate consists of two sets, each being an inclined annular shape. One set of limiting plates is positioned near the fixing ring plate, and the other set is positioned near the stirring shaft. The limiting plate near the stirring shaft is located below the limiting plate near the fixing ring plate. The attachment cloth consists of two sets, each fixedly installed at one end of the two limiting plates on the side closest to each other, with the two sets of attachment cloth spaced apart from each other.
[0008] Preferably, the fixing rod is fixedly installed in a ring at intervals on the side of the lower set of limiting plates away from the stirring shaft, and the end of the fixing rod away from the limiting plate slides through the other set of limiting plates and is installed on the inner wall of the fixing ring plate at the corresponding position.
[0009] Preferably, the auxiliary evaporation assembly further includes a movable sleeve, a driven plate, and an active plate. The movable sleeve is movably mounted on the fixed rod by a torsion spring, and the movable sleeve slides through the corresponding position wall of a set of upper limiting plates to the position of the limiting plates near the fixed ring plate. The driven plate is fixedly mounted on the outer side wall of the movable sleeve, and the position of the driven plate and the attached cloth corresponds to each other. The active plate is fixedly mounted in a ring at intervals on the outer side wall of the movable sleeve near the fixed ring plate, and the end of the impeller away from the stirring shaft corresponds to the position of the active plate.
[0010] Preferably, connecting rods are fixedly installed on both sides of the attached cloth corresponding to the driven plate. The length of the connecting rods is adapted to the length of the attached cloth. A pressure block is provided on the outside of the connecting rod, and the pressure block is fixedly installed on the wall surface of the attached cloth at the corresponding position.
[0011] Compared with the prior art, the present invention has the following beneficial effects:
[0012] In this invention, a conical double spiral ribbon is driven by a stirring shaft to stir the bottom of the vessel body. The conical double spiral ribbon can effectively shorten the evaporation time and improve the evaporation efficiency. The salt produced by evaporation can be quickly discharged through the outlet.
[0013] In this invention, during the stirring operation, the conical double spiral ribbon drives the liquid in the vessel to be conducted upward. Since the attachment cloth is inclined, the conducted liquid can be attached to its surface in large quantities and evenly. The inclined attachment cloth greatly increases the evaporation area of the liquid, which significantly accelerates the evaporation rate of the liquid during the evaporation operation. More salt can quickly crystallize from the mother liquor and attach to the attachment cloth, thereby effectively improving the evaporation efficiency of salt.
[0014] In this invention, the automatic separation of salt from the adhering cloth is effectively achieved through a linkage structure consisting of a paddle, an active plate, a movable sleeve, and a driven plate. When the stirring shaft drives the paddle to rotate, the paddle continuously squeezes the active plate. The active plate drives the movable sleeve to rotate at an appropriate angle on the fixed rod. The driven plate, which is fixedly connected to the movable sleeve, rotates accordingly and squeezes the adhering cloth. Under the pressure of the driven plate, the adhering cloth undergoes wrinkling deformation adjustment, thereby shaking off and separating the salt that has evaporated from its surface. The salt is then transported to a designated location through the inclined surface of the adhering cloth itself. This process requires no manual intervention, reducing labor intensity and improving the continuity and stability of production. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of the MVR mother liquor distillation kettle in this utility model;
[0016] Figure 2 This is a partial planar cross-sectional view of the vessel body in this utility model;
[0017] Figure 3 for Figure 2 A magnified schematic diagram of the partial structure at point A in the middle;
[0018] Figure 4 This is a partial cross-sectional view of the auxiliary evaporation component in this utility model;
[0019] Figure 5 This is a partial planar cross-sectional view of the attached fabric in this utility model.
[0020] Legend:
[0021] 1. Kettle body; 2. Kettle cover; 3. Motor drive device; 4. Jacket; 5. Salt outlet; 6. Stirring shaft; 7. Conical double spiral ribbon; 8. Paddle blade; 9. Fixed ring plate; 10. Limiting plate; 11. Attaching cloth; 12. Fixed rod; 13. Movable sleeve; 14. Driven plate; 15. Driving plate; 16. Connecting rod; 17. Pressure block. Detailed Implementation
[0022] The present invention will be further described below with reference to specific embodiments. However, those skilled in the art should understand that the detailed description given here with reference to the accompanying drawings is for better explanation. The structure of the present invention may exceed the limited embodiments described herein. Some equivalent alternatives or common means will not be described in detail here, but they still fall within the protection scope of this application.
[0023] Figures 1-5 This is the preferred embodiment of the present invention, which is described below in conjunction with the appendix. Figures 1-5 The present invention will be further described below.
[0024] like Figures 1-5 As shown, an MVR mother liquor distillation kettle includes a kettle body 1, a kettle cover 2, a motor drive device 3, a jacket 4, a stirring shaft 6, a conical double helical ribbon 7, and a paddle 8. The kettle body 1 has a cylindrical structure in the middle and a conical structure at the bottom. The kettle cover 2 is located at the upper end of the kettle body 1 and is elliptical. The motor drive device 3 is located on the kettle cover 2 and is equipped with a coupling. The stirring shaft 6 is located inside the kettle body 1 and is connected to the coupling on the motor drive device 3. The paddle 8 is located in the middle of the stirring shaft 6, and the conical double helical ribbon 7 is located in the lower part of the stirring shaft 6. Both the conical double helical ribbon 7 and the paddle 8 are fixedly connected to the stirring shaft 6. The cone angle of the conical double helical ribbon 7 is 60 degrees. A salt outlet 5 is provided at the bottom of the kettle body 1.
[0025] Furthermore, a fixing ring plate 9 is installed in the middle of the inner side of the vessel body 1. The fixing ring plate 9 is a circular block, and the position of the fixing ring plate 9 corresponds to the position of the blade 8.
[0026] Furthermore, an auxiliary evaporation component is provided on the inner side of the fixed ring plate 9.
[0027] Furthermore, the auxiliary evaporation assembly includes a limiting plate 10, an attachment cloth 11, and a fixing rod 12. There are two sets of limiting plates 10, each of which is an inclined annular shape. One set of limiting plates 10 is located near the side of the fixing ring plate 9, and the other set of limiting plates 10 is located near the side of the stirring shaft 6. The limiting plate 10 near the stirring shaft 6 is located below the limiting plate 10 near the fixing ring plate 9. There are two sets of attachment cloths 11, which are respectively fixedly installed at both ends of the two sets of limiting plates 10 on the side closest to each other. The two sets of attachment cloths 11 are spaced apart from each other and can undergo elastic deformation.
[0028] In this embodiment, the inclined attachment cloth 11 allows the liquid to adhere to the attachment cloth 11 when the liquid is carried upward by the lower conical double spiral belt 7 during the stirring operation. When the evaporation operation is carried out, the inclined attachment cloth 11 can effectively evaporate the liquid on the attachment cloth 11, and the evaporated salt will adhere to the attachment cloth 11, thereby improving the evaporation and extraction effect of salt in the solution.
[0029] Furthermore, the fixing rod 12 is fixedly installed in a ring at intervals on the side of the lower set of limiting plates 10 away from the stirring shaft 6, and the end of the fixing rod 12 away from the limiting plate 10 slides through the other set of limiting plates 10 and is installed on the inner wall of the fixing ring plate 9 at the corresponding position.
[0030] In this embodiment, the auxiliary evaporation component can be effectively fixed by the fixing rod 12.
[0031] Furthermore, the auxiliary evaporation assembly also includes a movable sleeve 13, a driven plate 14, and an active plate 15. The movable sleeve 13 is movably mounted on the fixed rod 12 via a torsion spring, and the movable sleeve 13 slides through the corresponding position wall of a set of upper limiting plates 10 to the position of the limiting plate 10 near the fixed ring plate 9. The driven plate 14 is fixedly mounted on the outer side wall of the movable sleeve 13, and the position of the driven plate 14 and the attached cloth 11 corresponds to each other. The active plate 15 is fixedly mounted in a ring at intervals on the outer side wall of the movable sleeve 13 near the fixed ring plate 9, and the end of the impeller 8 away from the stirring shaft 6 corresponds to the position of the active plate 15.
[0032] In this embodiment, the stirring shaft 6 drives the blade 8 to rotate, and the movement of the blade 8 will squeeze the active plate 15. The active plate 15 will drive the movable sleeve 13 to rotate at an appropriate angle on the fixed rod 12, so that the driven plate 14 will squeeze the attachment cloth 11 accordingly, and the attachment cloth 11 will adjust the wrinkle deformation accordingly. This can effectively separate the evaporated salt from the attachment cloth 11, and the salt on the attachment cloth 11 can be transferred to the designated position through the inclined surface.
[0033] Furthermore, connecting rods 16 are fixedly installed on both sides of the attached cloth 11 corresponding to the driven plate 14. The length of the connecting rods 16 is adapted to the length of the attached cloth 11. A pressure block 17 is provided on the outside of the connecting rods 16, and the pressure block 17 is fixedly installed on the wall surface of the attached cloth 11 at the corresponding position.
[0034] In this embodiment, the rotation of the movable sleeve 13 causes the driven plate 14 to squeeze the pressure block 17, which in turn causes the pressure block 17 to move and adjust the connecting rod 16 accordingly, which in turn causes the connecting rod 16 to adjust and deform the attached cloth 11 to the appropriate position.
[0035] Working principle and usage process of this utility model:
[0036] During use, driven by the motor drive device 3, the stirring shaft 6 drives the paddle 8 and the conical double spiral ribbon 7 to rotate together. The MVR mother liquor and the generated solid salt in the vessel body 1 flow fully in the vessel body 1. After the water evaporates, the salt in the cone at the bottom of the vessel body 1 is still further removed from the salt by the stirring of the conical double spiral ribbon 7. After evaporation is completed, the driving power provided by the conical double spiral ribbon 7 will discharge the salt with higher viscosity through the salt outlet 5.
[0037] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.
Claims
1. An MVR mother liquor distillation kettle, comprising a kettle body (1), a kettle cover (2), a motor drive device (3), a jacket (4), a stirring shaft (6), a conical double spiral ribbon (7), and impellers (8), characterized in that: The vessel body (1) has a cylindrical structure in the middle and a conical structure at the bottom. The vessel cover (2) is set at the upper end of the vessel body (1) and is elliptical. The motor drive device (3) is set on the vessel cover (2) and is equipped with a coupling. The stirring shaft (6) is set inside the vessel body (1) and is connected to the coupling on the motor drive device (3). The blade (8) is set in the middle of the stirring shaft (6). The conical double spiral ribbon (7) is set in the lower part of the stirring shaft (6). The conical double spiral ribbon (7) and the blade (8) are both fixedly connected to the stirring shaft (6). The cone angle of the conical double spiral ribbon (7) is 60 degrees. The bottom of the vessel body (1) is provided with a salt outlet (5).
2. The MVR mother liquor distillation kettle according to claim 1, characterized in that: A fixing ring plate (9) is installed in the middle of the inner side of the vessel body (1), and the position of the fixing ring plate (9) corresponds to the position of the blade (8). An auxiliary evaporation component is provided on the inner side of the fixing ring plate (9).
3. The MVR mother liquor distillation kettle according to claim 2, characterized in that: The auxiliary evaporation assembly includes a limiting plate (10), an attachment cloth (11), and a fixing rod (12). There are two sets of limiting plates (10), which are inclined annular shapes. One set of limiting plates (10) is located near the side of the fixing ring plate (9), and the other set of limiting plates (10) is located near the side of the stirring shaft (6). The limiting plate (10) near the stirring shaft (6) is located below the limiting plate (10) near the fixing ring plate (9). There are two sets of attachment cloths (11), which are fixedly installed at the two ends of the two sets of limiting plates (10) on the side that are close to each other, and the two sets of attachment cloths (11) are spaced apart from each other.
4. The MVR mother liquor distillation kettle according to claim 3, characterized in that: The fixing rod (12) is fixedly installed in a ring at intervals on the side of the lower set of limiting plates (10) away from the stirring shaft (6). The end of the fixing rod (12) away from the limiting plate (10) slides through another set of limiting plates (10) and is installed on the inner wall of the fixing ring plate (9) at the corresponding position.
5. The MVR mother liquor distillation kettle according to claim 3 or 4, characterized in that: The auxiliary evaporation assembly also includes a movable sleeve (13), a driven plate (14), and an active plate (15). The movable sleeve (13) is movably mounted on the fixed rod (12) by a torsion spring, and the movable sleeve (13) slides through the corresponding position wall of a set of upper limiting plates (10) to the position of the limiting plate (10) near the fixed ring plate (9). The driven plate (14) is fixedly mounted on the outer side wall of the movable sleeve (13), and the position of the driven plate (14) and the attachment cloth (11) are corresponding. The active plate (15) is fixedly mounted in a ring at intervals on the outer side wall of the movable sleeve (13) near the fixed ring plate (9), and the end of the blade (8) away from the stirring shaft (6) is corresponding to the position of the active plate (15).
6. The MVR mother liquor distillation kettle according to claim 5, characterized in that: A connecting rod (16) is fixedly installed on both sides of the attached cloth (11) corresponding to the driven plate (14). The length of the connecting rod (16) is adapted to the length of the attached cloth (11). A pressure block (17) is provided on the outside of the connecting rod (16). The pressure block (17) is fixedly installed on the wall surface of the attached cloth (11) at the corresponding position.