Novel efficient extraction tank
By introducing mixing pipelines and inclined plate structures into the extraction tank, the problem of insufficient mixing of the material liquid is solved, and more efficient extraction and separation and phase separation are achieved, which improves production efficiency and equipment utilization.
Patent Information
- Application Number
- CN202422419216.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-08
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-10-08
AI Technical Summary
In the traditional extraction tank, some of the material liquids overflow from the mixing chamber without sufficient contact, resulting in uneven mixing and reducing the extraction and separation efficiency.
The material liquid enters the channel between the box and the clarification tank through the mixing pipe, and then enters the clarification tank across the bottom of the clarification tank for separation. The inclined plate is used to slow down the feed liquid speed to improve the mixing effect, and promotes full mixing through the agitating shaft and the impeller.
The extraction and separation efficiency is improved, the volume ratio between the mixing chamber and the clarification chamber is improved, the clarification and phase separation effect is enhanced, the filling cost and equipment investment are reduced, and the production scale is improved.
Smart Images
Figure CN223118521U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of extraction tanks, and particularly belongs to a new type of high-efficiency extraction tank. Background Art
[0002] In the rare earth smelting and separation industry, extraction tanks are used. Based on the distribution differences of rare earth elements between organic solvents and aqueous phases, the efficient separation of rare earth elements is achieved by precisely controlling process parameters. An extraction tank usually consists of a mixing chamber and a clarification chamber, and these two parts together constitute a staged contact liquid-liquid mass transfer device. A stirrer is installed in the mixing chamber to promote droplet breakup and uniform mixing; the clarification chamber is an empty chamber with a relatively large cavity volume for the static stratification of the mixed liquid-liquid. Through the action of gravity, the heavy phase and the light phase are separated.
[0003] Traditional extraction tanks generally use box-type extractors. One stage is composed of a square mixing chamber and a rectangular clarification chamber connected together. Its structure is as follows: there is a submersible chamber at the bottom of the mixing chamber. The organic phase and the aqueous phase enter the mixing chamber from the submersible chamber respectively. After being stirred and mixed in the mixing chamber, they overflow from the top to the clarification chamber for clarification and separation. The stirrer in the mixing chamber plays the role of suction and mixing the feed liquid. However, some of the liquid overflows from the mixing chamber before the two phases are fully contacted and mixed, enters the clarification chamber for phase separation, resulting in insufficient mixing time of the two phases, uneven mixing, and reduced extraction and separation efficiency. Summary of the Utility Model
[0004] Aiming at the above problems, the purpose of the utility model is to provide a new type of high-efficiency extraction tank. The feed liquid overflowing from the mixing chamber enters the channel between the box body and the clarification tank through a mixing pipe. The feed liquid crosses the bottom of the clarification tank and then enters the clarification tank from the overflow port for separation. The feed liquid will be fully mixed during the movement in the channel, thereby improving the extraction and separation efficiency.
[0005] The technical solution adopted by the utility model is as follows:
[0006] A new type of high-efficiency extraction tank includes a box body. A clarification tank is arranged in the box body. A channel is formed at an interval between the clarification tank and the bottom of the box body. An overflow port is formed at an interval between one side of the clarification tank and the side wall of the box body. A mixing chamber and a mixing pipe are arranged on the other side of the clarification tank. The mixing chamber is communicated with the channel through the mixing pipe.
[0007] Preferably, inclined plates inclined towards the overflow port are arranged in the clarification tank.
[0008] Preferably, the box body is rectangular, and the mixing pipe and the overflow port are respectively located on both sides of the long side of the box body.
[0009] Preferably, a stirring shaft is vertically arranged in the mixing chamber. A main impeller is connected to the stirring shaft, and an electric motor is connected to the upper end of the stirring shaft.
[0010] Preferably, the stirring shaft is further provided with a sub-impeller.
[0011] Preferably, a sealing box installed on the box body is sleeved on the stirring shaft.
[0012] Preferably, a coupling is provided between the motor and the stirring shaft.
[0013] Preferably, a transition chamber communicating with the mixing chamber is provided on one side of the clarification tank away from the overflow port, and an organic phase inlet pipe and an aqueous phase inlet pipe are connected to the transition chamber.
[0014] Preferably, an aqueous phase outlet pipe and an organic phase overflow tank are provided on one side of the clarification tank away from the overflow port, and an organic phase outlet pipe is connected to the organic phase overflow tank.
[0015] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present utility model are as follows:
[0016] The liquid material overflowing from the mixing chamber enters the channel between the box body and the clarification tank through the mixing pipeline. The liquid material straddles the bottom of the clarification tank and then enters the clarification tank through the overflow port for separation. The liquid material will be fully mixed during the movement in the channel, thereby improving the extraction and separation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.
[0018] Figure 1 It is a front view sectional structure schematic diagram provided by an embodiment of the present utility model;
[0019] Figure 2 It is a top view structure schematic diagram provided by an embodiment of the present utility model.
[0020] Reference numerals: 1 - box body; 2 - mixing pipeline; 3 - mixing chamber; 4 - main impeller; 5 - stirring shaft; 6 - sub-impeller; 7 - coupling; 8 - motor; 9 - sealing box; 10 - organic phase inlet pipe; 11 - aqueous phase inlet pipe; 12 - aqueous phase outlet pipe; 13 - inclined plate; 14 - overflow port; 15 - clarification tank; 16 - transition chamber; 17 - channel; 18 - organic phase outlet pipe; 19 - organic phase overflow tank. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. The components of the embodiments of the present utility model usually described and illustrated in the drawings here can be arranged and designed in various different configurations.
[0022] Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the claimed present utility model, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts belong to the scope of protection of the present utility model.
[0023] In the description of the present utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this application is usually placed when in use, it is only for the convenience of describing the present utility model 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, and therefore should not be construed as a limitation of the present utility model.
[0024] The following will be combined with Figure 1 and Figure 2 to describe the present utility model in detail.
[0025] Embodiment
[0026] A new type of high-efficiency extraction tank includes a box body 1. A clarification tank 15 is arranged in the box body 1. A channel 17 is formed at an interval between the clarification tank 15 and the bottom of the box body 1. An overflow port 14 is formed at an interval between one side of the clarification tank 15 and the side wall of the box body 1. A mixing chamber 3 and a mixing pipe 2 are arranged on the other side of the clarification tank 15. The mixing chamber 3 is communicated with the channel 17 through the mixing pipe 2.
[0027] The organic phase and the aqueous phase enter the mixing chamber 3 for stirring and mixing. Subsequently, the liquid material overflows from the mixing chamber 3. The liquid material enters the channel 17 between the box body 1 and the clarification tank 15 through the mixing pipe 2. The liquid material crosses the bottom of the clarification tank 15 and then enters the clarification tank 15 from the overflow port 14 for separation. Some of the liquid material that has not been fully contacted and mixed between the two phases will be fully mixed during the movement in the channel 17.
[0028] The clarification tank 15 is provided with an inclined plate 13 inclined toward the overflow port 14. The inclined plate 13 slows down the liquid flow rate, so that the water phase in the liquid settles to the bottom of the clarification tank 15 more quickly under the action of gravity, thereby improving the clarification effect.
[0029] The box body 1 is rectangular, and the mixing pipe 2 and the overflow port 14 are respectively located on both sides of the long side of the box body 1. The liquid output from the mixing pipe 2 can pass through a longer channel 17, further ensuring the mixing effect of the liquid.
[0030] A stirring shaft 5 is vertically arranged in the mixing chamber 3, a main impeller 4 is connected to the stirring shaft 5, and a motor 8 is connected to the upper end of the stirring shaft 5. The motor 8 drives the main impeller 4 to rotate through the stirring shaft 5 to stir and suck the liquid. The impeller has high hydraulic efficiency and high structural strength, which can extend the continuous production time and improve production efficiency.
[0031] The stirring shaft 5 is also provided with an auxiliary impeller 6, which can further enhance the mixing effect of the feed liquid.
[0032] The stirring shaft 5 is sleeved with a sealing box 9 mounted on the box body 1. The sealing box 9 seals the gap between the stirring shaft 5 and the box body 1 to prevent leakage of the feed liquid.
[0033] A coupling 7 is provided between the motor 8 and the stirring shaft 5. In the conventional technology, the motor 8 drives the stirring shaft 5 to rotate via a pulley, and the stirring shaft 5 needs to be equipped with a bearing seat to be rotatably mounted on the housing 1. The bearing seat is easily damaged after long-term operation, and the vehicle needs to be stopped for maintenance, which is time-consuming. In the present application, the motor 8 is connected to the stirring shaft 5 via a coupling 7, eliminating the bearing seat, and reducing the time for stopping for maintenance due to bearing failure of the bearing seat.
[0034] A transition chamber 16 connected to the mixing chamber 3 is provided on one side of the clarification tank 15 away from the overflow port 14, and the transition chamber 16 is connected to the organic phase inlet pipe 10 and the water phase inlet pipe 11. The transition chamber 16 collects the organic phase and the water phase together through the organic phase inlet pipe 10 and the water phase inlet pipe 11 and transports them to the mixing chamber 3 for mixing and stirring.
[0035] A water phase outlet pipe 12 and an organic phase overflow tank 19 are provided on one side of the clarification tank 15 away from the overflow port 14, and the organic phase overflow tank 19 is connected to the organic phase outlet pipe 18. The water phase outlet pipe 12 is a vertical pipe, the pipe opening at the lower end of the pipe serves as the inlet of the water phase, and the pipe opening at the upper end of the pipe serves as the outlet of the water phase and is connected to the outside of the tank 1. The water phase has a large density, so it is deposited at the bottom of the clarification tank 15 and then discharged from the tank 1 from the water phase outlet pipe 12; the organic phase has a small density, floats on the upper part of the liquid surface and is collected through the organic phase overflow tank 19, and finally discharged from the tank 1 from the organic phase outlet pipe 18.
[0036] Most of the space of the box body 1 of this application is used to set up the clarification tank 15, so that the volume ratio of the clarification chamber 15 to the chambers used for mixing (transition chamber 16, mixing chamber 3, mixing pipeline 2 and channel 17) increases, and the mixing and clarification ratio decreases (Vmix:Vclarification of this application = 1:3.7, and the traditional one is 1:3.1), which is more conducive to clarification and phase separation.
[0037] In the traditional extraction tank, the volume ratio of the mixing chamber 3 is too large and the volume ratio of the clarification chamber 15 is too small under the same volume, resulting in low clarification efficiency, thus reducing the effective separation rate of each stage of the tank equipment. Using the traditional box-type extraction and separation equipment, it occupies a large area and has high charging costs, and the effective separation efficiency is low. Compared with the traditional extraction tank, the extraction tank of this application can improve the efficiency by 30%, effectively ensuring the separation of the clarified two phases. Due to the high mixing efficiency and high clarification efficiency, under the same production scale, this application can reduce the charging cost by 30%, and with the same investment in separation equipment, the production scale can be increased by more than 30%.
[0038] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A new type of high-efficiency extraction tank, including a box body (1), characterized in that, A clarification tank (15) is provided in the box body (1). A channel (17) is formed at an interval between the clarification tank (15) and the bottom of the box body (1). An overflow port (14) is formed at an interval between one side of the clarification tank (15) and the side wall of the box body (1). A mixing chamber (3) and a mixing pipe (2) are provided on the other side of the clarification tank (15). The mixing chamber (3) is communicated with the channel (17) through the mixing pipe (2).
2. The novel and highly efficient extraction tank according to claim 1, characterized in that, An inclined plate (13) inclined towards the overflow port (14) is provided in the clarification tank (15).
3. The novel high-efficiency extraction tank according to claim 1, characterized in that, The box body (1) is rectangular. The mixing pipe (2) and the overflow port (14) are respectively located on both sides of the long side of the box body (1).
4. A novel and efficient extraction tank according to claim 1, characterized in that, A stirring shaft (5) is vertically provided in the mixing chamber (3). A main impeller (4) is connected to the stirring shaft (5). The upper end of the stirring shaft (5) is connected to a motor (8).
5. A novel and efficient extraction tank according to claim 4, characterized in that, The stirring shaft (5) is further provided with a secondary impeller (6).
6. The novel and efficient extraction tank according to claim 4, wherein The stirring shaft (5) is sleeved with a sealing box (9) installed on the box body (1).
7. A novel and efficient extraction tank according to claim 4, characterized in that, A coupling (7) is provided between the motor (8) and the stirring shaft (5).
8. A novel and highly efficient extraction tank according to claim 1, characterized in that, A transition chamber (16) communicated with the mixing chamber (3) is provided on the side of the clarification tank (15) away from the overflow port (14). The transition chamber (16) is connected with an organic phase inlet pipe (10) and an aqueous phase inlet pipe (11).
9. The novel and efficient extraction tank according to claim 1, wherein, An aqueous phase outlet pipe (12) and an organic phase overflow tank (19) are provided on the side of the clarification tank (15) away from the overflow port (14). The organic phase overflow tank (19) is connected with an organic phase outlet pipe (18).