A high-efficiency mixing and clarification extraction box

Abstract

This utility model discloses a high-efficiency mixing and clarification extraction box, relating to the field of extraction box technology. It includes a mixing device and a clarification chamber. The mixing device mainly comprises a stirring chamber, a variable-speed motor, and a pipeline mixer. The stirring chamber and clarification chamber are installed side-by-side, with the variable-speed motor and pipeline mixer installed at the top and bottom of the stirring chamber, respectively. The pipeline mixer is connected to the stirring chamber. The drive shaft of the variable-speed motor extends into the stirring chamber and is sequentially connected to a baffle-type stirring paddle and a horizontal-flow stirring paddle. A flow guide device is installed below the horizontal-flow stirring paddle. Inside the clarification chamber, a corrugated baffle, a first partition, and a second partition are vertically installed from left to right. In this application, the mixing device employs a flow guide device and multiple mixing and stirring technologies, improving mixing efficiency. Simultaneously, the design of baffles and multiple partitions in the clarification chamber effectively maintains the stability of the clarification interface, shortens the clarification time, and reduces the risk of emulsion formation.

Description

Technical Field

[0001] This utility model relates to the field of extraction box technology, and in particular to a high-efficiency mixing and clarification extraction box. Background Technology

[0002] The mixing-clarification extraction chamber is an industrial device used in liquid-liquid extraction processes. It has advantages such as simple operation, large processing capacity, and strong adaptability, and is widely used. Common mixing-clarification extraction chambers use mixing chamber stirring to achieve extraction mass transfer, and the mixed liquid enters the clarification chamber and separates into phases by gravity.

[0003] The current method of using a single stirring and mixing method results in low mass transfer efficiency between the two phases and uneven mixing. The mixed liquid will also collide violently when it enters the clarification chamber, which will interfere with the clarification and phase separation and prolong the clarification time. Therefore, it is necessary to increase the area of ​​the clarification chamber and occupy space. Utility Model Content

[0004] Therefore, in order to solve the above problems and shortcomings, this utility model provides a high-efficiency mixing and clarification extraction box, including a mixing device and a clarification chamber. The mixing device mainly includes a stirring chamber, a variable speed motor and a pipeline mixer. The stirring chamber and the clarification chamber are installed side by side, and the variable speed motor and the pipeline mixer are respectively installed at the top and bottom of the stirring chamber. The pipeline mixer is in communication with the stirring chamber. The drive shaft of the variable speed motor extends into the stirring chamber and is connected to a baffle-type stirring paddle and a horizontal-flow stirring paddle in sequence. A flow guide device is installed at the lower part of the horizontal-flow stirring paddle. The interior of the clarification chamber is vertically installed with a corrugated baffle, a first partition and a second partition in sequence from left to right. An organic outlet and an aqueous phase outlet are respectively opened at the upper and lower positions on one side of the clarification chamber.

[0005] Furthermore, the flow guiding device is composed of a first baffle, a second baffle, a third baffle, a spiral conveying plate, and a support frame. The first baffle, the second baffle, and the third baffle are arranged parallel to each other at equal intervals along the axial direction and are in close contact with the mixing chamber. The spiral conveying plate is installed near the bottom of the support frame. The top of the support frame passes through the first baffle, the second baffle, and the third baffle and is coaxially connected to them.

[0006] Furthermore, the left and right ends of the pipeline mixer are the organic inlet and the aqueous inlet, respectively.

[0007] Furthermore, an overflow port is provided at the upper part of the connection between the mixing chamber and the clarification chamber, and baffles are installed on both sides extending into the clarification chamber along the overflow port.

[0008] Furthermore, the first baffle, the second baffle, and the third baffle are the same size, and each of them has evenly distributed small circular holes on its surface.

[0009] Furthermore, the porosities of the first baffle, the second baffle, and the third baffle are 60%, 50%, and 40%, respectively.

[0010] Furthermore, the surfaces of the first and second partitions have small holes.

[0011] The beneficial effects of this utility model can be specifically analyzed as follows:

[0012] Advantage 1: In this application, the mixing device adopts a flow guiding device and a double stirring paddle to form a multi-mixing and stirring technology, optimize the fluid movement mode, realize full contact between the two phases, and improve the mixing efficiency; at the same time, the design of baffles and multi-partition structure in the clarification chamber can effectively maintain the stability of the clarification interface and shorten the clarification time.

[0013] Advantage 2: This application extends the flow path of the mixture, slows down the flow rate, prevents the mixture flowing out of the mixing chamber from directly impacting the clarification interface, shortens the clarification time, and reduces the risk of emulsion layer formation. Attached Figure Description

[0014] Figure 1 This is a cross-sectional view of the high-efficiency mixing and clarification extraction box of this utility model;

[0015] Figure 2 This is a utility model Figure 1 Schematic diagram of the first, second, and third baffles;

[0016] Figure 3 This is a utility model Figure 1 Side view of the mounting frame;

[0017] Reference numerals: Mixing device 1, stirring chamber 10, baffle-type stirring paddle 101, horizontal-flow stirring paddle 102, variable speed motor 11, pipeline mixer 12, overflow port 13, baffle plate 14, clarification chamber 2, first baffle 201, second baffle 202, organic outlet 203, aqueous phase outlet 204, corrugated baffle 205, flow guiding device 3, first baffle 301, second baffle 302, third baffle 303, spiral conveyor plate 304, support frame 305. Detailed Implementation

[0018] The present invention will now be described in detail with reference to the accompanying drawings, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Throughout the invention, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0019] It should be understood that ordinal numbers and directional descriptions, such as "first," "second," "third," "upper," "lower," "left," and "right," are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly and not as limiting the scope of this utility model.

[0020] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. Please refer to the attached drawings. Figure 1-3 As shown, this application provides a mixing device 1 and a clarification chamber 2. The mixing device 1 mainly includes a stirring chamber 10, a variable speed motor 11, and a pipe mixer 12. The stirring chamber 10 and the clarification chamber 2 are installed side by side, and the variable speed motor 11 and the pipe mixer 12 are respectively installed at the top and bottom of the stirring chamber 10. The pipe mixer 12 is in communication with the stirring chamber 10. The drive shaft of the variable speed motor 11 extends into the stirring chamber 10 and is connected in sequence to a baffle-type stirring paddle 101 and a horizontal-flow stirring paddle 102. The baffle-type stirring paddle 101 and the horizontal-flow stirring paddle 102 are coaxially connected and are driven to rotate by the variable speed motor 11. A flow guide device 3 is installed at the lower part of the horizontal-flow stirring paddle 102. The interior of the clarification chamber 2 is vertically installed from left to right with a corrugated baffle 205, a first partition 201, and a second partition 202. An organic outlet 203 and a water phase outlet 204 are respectively opened at the upper and lower positions on one side of the clarification chamber 2.

[0021] Based on the above description, the stirring chamber 10 is a cylindrical stirring vessel, the clarification chamber 2 is rectangular, the first partition 201 and the second partition 202 are 2 meters long and 1.5 meters wide, and are installed inside by a slot pull-out method. Small round holes with a diameter of about 8 cm are distributed on both partitions. The corrugated baffle 205 is used to disperse the impact force of the solution flowing down from the overflow port 13 and reduce liquid surface interference.

[0022] Furthermore, the flow guiding device 3 is composed of a first baffle 301, a second baffle 302, a third baffle 303, a spiral conveying plate 304, and a support frame 305. The first baffle 301, second baffle 302, and third baffle 303 are arranged parallel to each other equidistantly along the axial direction and remain in contact with the mixing chamber 10. The spiral conveying plate 304 is installed near the bottom of the support frame 305. The top of the support frame 305 passes through the first baffle 301, second baffle 302, and third baffle 303 and is coaxially connected to them. The first baffle 301, second baffle 302, and third baffle 303 are arranged parallel to each other equidistantly along the axial direction and remain in contact with the mixing chamber 10. The first baffle 301 and the third baffle 303 are the same size, with a diameter of about 1 meter. They are all provided with evenly distributed circular holes on their surfaces. The diameter of a single hole in the first baffle 301 is about 10 cm, the diameter of a single hole in the second baffle 302 is about 8 cm, and the diameter of a single hole in the third baffle 303 is about 6 cm. The three baffles can simultaneously play a dispersing role, increase the contact area between the two phases, reduce backmixing, and improve extraction efficiency. The spiral conveyor plate 304 and the three baffles are all supported by a support frame 305, which is fixed to the inner wall of the stirring chamber 10.

[0023] like Figure 1 As shown, the left and right ends of the pipeline mixer 12 are the organic inlet and the aqueous inlet, respectively. The organic phase enters from the left organic inlet and the aqueous phase enters from the right aqueous inlet. An overflow port 13 is provided at the upper part of the connection between the mixing chamber 10 and the clarification chamber 2. Baffles 14 are installed on both sides extending from the overflow port 13 into the clarification chamber 2. The surface of the baffles has multiple arc surfaces, which can extend the flow path of the mixture, slow down the flow rate, prevent the mixture flowing out of the mixing chamber from directly impacting the clarification interface, shorten the clarification time, and reduce the risk of emulsion formation.

[0024] In this application, the organic phase and the aqueous phase enter the pipe mixer 12 through pipes for initial mixing. Then, they sequentially flow along the surface of the fixed curved spiral conveyor plate 304, the first baffle 301, the second baffle 302, and the third baffle 303. During this process, the two phases undergo turbulent collisions through the spiral conveyor plate 304. Through the dispersion, coagulation, and speed-changing effects of the baffles, a preliminary mixture is formed. Subsequently, the variable speed motor 11 drives the baffle-type stirring paddle 101 and the horizontal-type stirring paddle 102 to rotate. After being mixed evenly, the mixture flows out from the overflow port 13 of the two-phase mixed liquid. The turbulent mixture is slowed down by the surface of the baffle plate 14, and the flow rate gradually becomes smooth as it falls into the clarification chamber 2. The flow rate becomes slower at the corrugated baffle 205. At this time, the mixture begins to complete phase separation within 30-60 seconds. At the same time, the first baffle 201 and the second baffle 202 can stabilize the phase interface.

[0025] In summary, this utility model's high-efficiency mixing and clarification extraction box employs a flow guiding device and multiple mixing and stirring technologies to improve mixing efficiency. Furthermore, the design of baffles and multiple partitions in the clarification chamber effectively maintains the stability of the clarification interface, shortens clarification time, and reduces the risk of emulsion formation.

[0026] The above are merely embodiments of this utility model. Common knowledge such as specific structures and characteristics in the solutions are not described in detail here. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the structure of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and they will not affect the implementation effect of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A high efficiency mixer-settler extraction tank characterized by: The system includes a mixing device (1) and a clarification chamber (2). The mixing device (1) mainly includes a stirring chamber (10), a variable speed motor (11), and a pipe mixer (12). The stirring chamber (10) and the clarification chamber (2) are installed side by side. The variable speed motor (11) and the pipe mixer (12) are installed at the top and bottom of the stirring chamber (10), respectively. The pipe mixer (12) is connected to the stirring chamber (10). The drive shaft of the variable speed motor (11) extends into the stirring chamber (10) and is connected to a baffle-type stirring paddle (101) and a horizontal-type stirring paddle (102) in sequence. A flow guide device (3) is installed at the lower part of the horizontal-type stirring paddle (102). The interior of the clarification chamber (2) is vertically installed from left to right with a corrugated baffle (205), a first partition (201), and a second partition (202). An organic outlet (203) and a water phase outlet (204) are respectively opened at the upper and lower positions on one side of the clarification chamber (2).

2. The high efficiency hybrid settler extractor tank of claim 1, wherein: The flow guiding device (3) is composed of a first baffle (301), a second baffle (302), a third baffle (303), a spiral conveying plate (304), and a support frame (305). The first baffle (301), the second baffle (302), and the third baffle (303) are arranged parallel to each other at equal intervals along the axial direction and are in close contact with the stirring chamber (10). The spiral conveying plate (304) is installed near the bottom of the support frame (305). The top of the support frame (305) passes through the first baffle (301), the second baffle (302), and the third baffle (303) and is coaxially connected to them.

3. The high efficiency hybrid settler extractor tank of claim 1, wherein: The left and right ends of the pipeline mixer (12) are the organic inlet and the aqueous inlet, respectively.

4. The high efficiency hybrid settler extractor tank of claim 1, wherein: An overflow port (13) is provided at the upper part of the connection between the stirring chamber (10) and the clarification chamber (2), and baffles (14) are installed on both sides extending into the clarification chamber (2) along the overflow port (13).

5. The high-efficiency mixing and clarification extraction chamber according to claim 2, characterized in that: The first baffle (301), the second baffle (302) and the third baffle (303) are the same size, and each of them has evenly distributed circular holes on its surface.

6. The high efficiency hybrid settler extractor tank of claim 2, wherein: The porosities of the first baffle (301), the second baffle (302), and the third baffle (303) are 60%, 50%, and 40%, respectively.

7. The high efficiency hybrid settling extractor tank of claim 1, wherein: The surfaces of the first partition (201) and the second partition (202) have small holes.

Images