Extraction tower for extracting and removing impurities

Abstract

The invention belongs to the related technical field of extraction, and particularly discloses an extraction tower for extraction and impurity removal, the extraction tower comprises a base, an extraction tower body, a solvent storage tank and a material storage tank are sequentially arranged on the upper surface of the base from left to right, and a material conveying pipe is mounted in the material storage tank in a communicating manner; a material conveying pump is installed at the end, away from the material storage tank, of the material conveying pipe in a communicating mode, the discharging end of the material conveying pump is communicated with the upper portion of the inner side of the extraction tower body through a guiding pipe installed in a communicating mode, and a solvent conveying pipe is installed on the inner side of the solvent storage tank in a communicating mode; a solvent conveying pump is installed at the end, away from the solvent storage tank, of the solvent conveying pipe in a communicating mode, and a water storage tank is installed at the end, away from the solvent storage tank, of the solvent conveying pump in a communicating mode.

Description

Technical Field

[0001] The invention belongs to the technical field related to extraction, and specifically discloses an extraction tower for extracting and removing impurities. Background Art

[0002] When dealing with toluene solutions of zidovudine intermediates (6C), using water as an extractant for impurity removal is a common operating method. This method utilizes the difference in solubility of the solute in two immiscible liquids to remove impurities through water extraction, thereby achieving the purpose of purification. Specifically, a mixed system of toluene and water can effectively separate zidovudine intermediates (6C) and certain impurities because these impurities are more soluble in water than in toluene. By controlling the extraction conditions (such as temperature, extraction time, etc.), the impurity removal effect can be further improved. In addition, attention should be paid to operational details during the extraction process, such as controlling temperature and stirring speed, to ensure extraction efficiency and product quality. After extraction, further separation and drying steps may be required to obtain pure zidovudine intermediate (6C); The existing extraction is not sufficient when separating impurities, and the mixing rate of solvent and water is slow, resulting in slow progress of impurity removal and separation. Therefore, we need to make improvements to this. Summary of the invention

[0003] The purpose of the present invention is to solve the problems existing in the background technology and to propose an extraction tower for extracting and removing impurities.

[0004] To achieve the above purpose, the present invention discloses an extraction tower for extraction and impurity removal, comprising a base, wherein an extraction tower body, a solvent storage tank and a material storage tank are sequentially arranged on the upper surface of the base from left to right, a material conveying pipe is connected and installed inside the material storage tank, a material conveying pump is connected and installed at one end of the material conveying pipe away from the material storage tank, a discharge end of the material conveying pump is connected with the upper inner side of the extraction tower body through a connected and installed guide pipe, a solvent conveying pipe is connected and installed inside the solvent storage tank, a solvent conveying pump is connected and installed at one end of the solvent conveying pipe away from the solvent storage tank, a water storage tank is connected and installed at one end of the solvent delivery pump away from the solvent storage tank, the other end of the water storage tank is connected with the inner side of the extraction tower body through a connected and installed inlet pipe, a mixing component is arranged inside the extraction tower body, rectangular bins are connected and installed on both sides of the extraction tower body and near the lower position, a first separation component is arranged on the upper inner side of one of the rectangular bins, and a second separation component is arranged on the inner side of the other rectangular bin.

[0005] Preferably, the first separation component comprises a hot water outlet installed in communication with the upper inner side of one of the rectangular bins, and a light phase storage tank is installed in communication with the interior of the extraction tower body and below the hot water outlet.

[0006] Preferably, the second separation component comprises a hot water inlet which is connected to and installed at the lower inner side of another rectangular bin, and a heavy phase storage tank is connected to and installed inside the extraction tower body and below the hot water inlet.

[0007] Preferably, the mixing assembly includes a support fixedly installed on the bottom inner side of the extraction tower body, liquid transfer assemblies are arranged on both sides of the support, a bucket seat is fixedly installed on the upper inner side of the extraction tower body, distribution pipes are symmetrically installed on both sides of the inside of the bucket seat, and a stop seat is fixedly installed on one edge of the distribution pipe, a rotating shaft is rotatably matched on the inner side of the bucket seat, a pushing plate is arranged on the outside of the rotating shaft and inside the bucket seat, a driving part is arranged on the upper end of the rotating shaft, a screw is fixedly installed on the lower end of the rotating shaft, a pushing assembly is arranged on the outside of the screw, vertical rods are fixedly installed on the upper surfaces of both sides of the support, and the upper ends of the two vertical rods are fixedly connected to the bottom of the bucket seat.

[0008] Preferably, the driving member includes a first motor connected and installed at the upper end of the rotating shaft, and the outer side of the first motor is fixedly installed on the top of the extraction tower body through a bracket.

[0009] Preferably, the liquid transfer assembly includes a sleeve shaft fixedly mounted on one side of the support, a rotating wheel is provided on the outside of the sleeve shaft and inside the rectangular bin, one end of the sleeve shaft extends to the outside of the rectangular bin and the end is connected to a second motor, and the second motor is fixedly mounted on the outside of the rectangular bin.

[0010] Preferably, the outer thread of the screw rod is equipped with a ring sleeve, and pushing bins are fixedly installed on both sides of the ring sleeve, and multiple suction heads are fixedly installed on the bottom of both sides of the pushing bin. A mounting block is fixedly installed on the outer wall of one end of the pushing bin, and the mounting block is slidably matched with the vertical rod. Loading components are provided on the top of both ends of the pushing bin.

[0011] Preferably, the loading assembly includes a frame plate fixedly mounted on the top of one end of the pushing bin, a connecting rod is fixedly mounted on one end of the frame plate, a plurality of dispersion boxes are clamped on the outer side of the connecting rod, and the plurality of dispersion boxes are made of silicone material.

[0012] Compared with the prior art, the present invention has the following beneficial effects: The material storage tank and material delivery pump can be used to automatically deliver the material to the extraction tower for use. Similarly, the solvent storage tank can automatically deliver the added solvent through the solvent delivery pump.

[0013] By arranging a bucket seat on the inner side of the extraction tower body, and connecting and installing multiple distribution pipes at the lower inner side of the bucket seat, each distribution pipe can be prompted to initially mix the solvent and materials fed, and then all the materials are dispersed into the interior of the extraction tower body through each distribution pipe arranged for diversion, and each distribution pipe can deliver the materials to the side of the extraction tower body. At this time, the first motor drives the rotating shaft and the screw to rotate, and the ring sleeve with thread matching on the outer side of the screw moves up and down on the outer side of the screw under the sliding cooperation of the connecting block and the vertical rod. The materials distributed around can be brought to the upper part of the extraction tower body through the dispersion box. In this way, the materials are fully blended during mixing, and the solvent fully removes impurities inside the materials. The dispersion box is During the gradual rise, it will contact the seat outside the distribution pipe, and the dispersion box is set to a silicone material, which can move up and squeeze the seat, and then pour the liquid inside the dispersion box from the top. The second motor uses a rotating wheel at the rectangular bin to make the internal material rotate at high speed, thereby increasing the contact between the materials and ensuring the mixing and blending of the materials. During the material blending process, the immiscibility of toluene solvent and water is utilized to separate them by liquid separation. Since the density of toluene is less than that of water, toluene will float on the water surface. Therefore, during the extraction process, the addition of hot water can better promote the separation of toluene and water, allowing toluene to be more easily separated from water. This operation method helps to improve the extraction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a structural schematic diagram of another angle of the present invention; Figure 3 This is a schematic diagram of the connection structure of the inner part of the extraction tower body of the present invention; Figure 4 It is a schematic diagram of the connection structure between the bucket seat and the distribution pipe of the present invention; Figure 5 It is a schematic diagram of the connection structure between the support and the rotating wheel of the present invention; Figure 6 This is a schematic diagram of the connection structure between the push bin and the vertical rod of the present invention; Figure 7 It is a schematic diagram of the connection structure between the dispersion box and the frame plate of the present invention.

[0015] In the figure: 1. base; 2. material storage tank; 3. solvent storage tank; 4. material delivery pipe; 5. solvent delivery pipe; 6. extraction tower body; 7. hot water outlet; 8. hot water inlet; 9. heavy phase storage tank; 10. light phase storage tank; 11. inlet pipe; 12. water storage tank; 13. solvent delivery pump; 14. material delivery pump; 15. first motor; 16. second motor; 17. bracket; 18. push plate; 19. bucket seat; 20. push bin; 21. rectangular bin; 22. rotating shaft; 23. support; 24. sleeve shaft; 25. distribution pipe; 26. stop seat; 27. rotating wheel; 28. suction head; 29. ​​sleeve; 30. screw; 31. mounting block; 32. vertical rod; 33. shelf; 34. connecting rod; 35. dispersion box; 36. guide pipe. DETAILED DESCRIPTION

[0016] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0017] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0018] like Figure 1-Figure 7 An extraction tower for extracting and removing impurities shown in the figure comprises a base 1, on the upper surface of which an extraction tower body 6, a solvent storage tank 3 and a material storage tank 2 are arranged in sequence from left to right, a material conveying pipe 4 is installed in the material storage tank 2, a material conveying pump 14 is installed in the material conveying pipe 4 away from the material storage tank 2, a discharge end of the material conveying pump 14 is connected to the upper inner side of the extraction tower body 6 through a guide pipe 36 installed in a connecting manner, a solvent conveying pipe 5 is installed in the solvent storage tank 3, a solvent conveying pump 13 is installed in the solvent conveying pipe 5 away from the solvent storage tank 3, a water storage tank 12 is installed in the solvent conveying pump 13 away from the solvent storage tank 3, and the other end of the water storage tank 12 is connected to the inner side of the extraction tower body 6 through an inlet pipe 11 installed in a connecting manner, a mixing component is arranged in the inner side of the extraction tower body 6, and rectangular bins 21 are installed in a connecting manner on both sides of the extraction tower body 6 and near the lower position, a first separation component is arranged in the upper inner side of one of the rectangular bins 21, and a second separation component is arranged in the inner side of the other rectangular bin 21.

[0019] The first separation component includes a hot water outlet 7 installed on the upper inner side of one of the rectangular bins 21 , and a light phase storage tank 10 is installed inside the extraction tower body 6 and below the hot water outlet 7 , and the fluid phase liquid with lower density flows into the light phase storage tank 10 .

[0020] The second separation component includes a hot water inlet 8 connected and installed at the lower inner side of another rectangular bin 21 , and a heavy phase storage tank 9 is connected and installed inside the extraction tower body 6 and below the hot water inlet 8 , and the liquid with higher density flows into the heavy phase storage tank 9 .

[0021] The mixing component includes a support 23 fixedly installed at the bottom of the inner side of the extraction tower body 6, and liquid transfer components are arranged on both sides of the support 23. A bucket seat 19 is fixedly installed on the upper inner side of the extraction tower body 6. Both sides of the bucket seat 19 are symmetrically connected and connected with distribution pipes 25. The distribution pipe 25 evenly disperses the materials fed into the bucket seat 19 to each edge of the inner side of the extraction tower body 6, and a stop seat 26 is fixedly installed on one side edge of the distribution pipe 25. The inner side of the bucket seat 19 is rotatably matched with a rotating shaft 22, and a rotating shaft 22 is arranged outside the rotating shaft 22 and inside the bucket seat 19. A push plate 18 is provided, and the push plate 18 can accelerate the flow of materials inside the bucket seat 19 driven by the rotating shaft 22. A driving member is provided at the upper end of the rotating shaft 22, and a screw 30 is fixedly installed at the lower end of the rotating shaft 22. A push assembly is provided on the outer side of the screw 30. Vertical rods 32 are fixedly installed on the upper surfaces of both sides of the support 23, and the upper ends of the two vertical rods 32 are fixedly connected to the bottom of the bucket seat 19. The vertical rods 32 are installed above the support 23, so that when the ring sleeve 29 cooperates with the screw 30 to move, the overall structure maintains a vertical up and down trajectory for movement.

[0022] The driving member includes a first motor 15 connected to the upper end of the rotating shaft 22. The outer side of the first motor 15 is fixedly installed on the top of the extraction tower body 6 through a bracket 17. After the first motor 15 is connected to the power supply, it can drive the rotating shaft 22 and the screw 30 to rotate.

[0023] The liquid transfer assembly includes a sleeve shaft 24 fixedly mounted on one side of the support 23, a rotating wheel 27 is arranged on the outside of the sleeve shaft 24 and inside the rectangular bin 21, one end of the sleeve shaft 24 extends to the outside of the rectangular bin 21 and the end is connected to a second motor 16, the second motor 16 is fixedly mounted on the outside of the rectangular bin 21, and the second motor 16 can drive the rotating wheel 27 to rotate after being connected to a power source, thereby allowing the solvent to circulate quickly, and rotating the material at the bottom of the extraction tower body 6 to accelerate fusion.

[0024] The outer thread of the screw rod 30 is matched with a ring sleeve 29, and pushing bins 20 are fixedly installed on both sides of the ring sleeve 29. Multiple suction heads 28 are fixedly installed on the bottom of both sides of the pushing bin 20. The pushing bin 20 can increase the contact area with the material and continuously push the material and solvent during mixing. A mounting block 31 is fixedly installed on the outer wall of one end of the pushing bin 20. The mounting block 31 is slidably matched with the vertical rod 32, and loading components are provided on the top of both ends of the pushing bin 20.

[0025] The loading assembly includes a frame plate 33 fixedly mounted on the top of one end of the pushing bin 20, a connecting rod 34 fixedly mounted on one end of the frame plate 33, the frame plate 33 and the connecting rod 34 serve as connecting parts between the dispersion box 35 and the pushing bin 20, so that the multiple dispersion boxes 35 are more stable when in use and can move back and forth therewith, multiple dispersion boxes 35 are clamped on the outer side of the connecting rod 34, and the multiple dispersion boxes 35 are all made of silicone material. The dispersion boxes 35 made of silicone material can be in hard contact with the stop seat 26, and when rising and being squeezed, the material can be poured down from the top, thereby increasing the mixing rate of the material, and the main effect of the dispersion box 35 is to melt the material flowing through the distribution pipe 25 alternately up and down.

[0026] Working principle: the material delivery pump 14 sucks the material from the material storage tank 2 into the extraction tower body 6 through the material delivery pipe 4, and the corresponding solvent delivery pump 13 sucks the solvent inside the solvent storage tank 3 through the solvent delivery pipe 5 and then delivers it into the extraction tower body 6 through the guide pipe 36, and then the first motor 15 is connected to the power supply to promote the rotation of the shaft 22 and the screw 30, and the material enters the bucket seat 19, and is driven by the push plate 18 on the outside of the shaft 22 to rotate, so that the material flows through the multiple distribution pipes 25 to the edge of the inside of the extraction tower body 6, and at this time, the ring sleeve 29 on the outside of the screw 30 will drive the push bin 20 The material delivered from the distribution pipe 25 is contained in the reciprocating dispersion box 35 by reciprocating movement up and down in the vertical direction until the edge of the dispersion box 35 contacts the stop 26 on the outside of the distribution pipe 25, squeezing the dispersion box 35 of the silicone material, causing the material to fall from the top for the second time during the transportation process. In this way, the mixing rate of the material and the solvent can be accelerated, so that the efficiency of the impurity removal work is improved. In addition, the second motor 16 also drives the sleeve shaft 24 to rotate at the corresponding position, so that the rotating wheel 27 drives the surrounding liquid to mix, greatly increasing the contact area between the solvent and the material, and then the separation work is carried out.

[0027] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements fall within the scope of the present invention claimed.

Claims

1. An extraction tower for extracting and removing impurities, comprising a base (1), characterized in that: The upper surface of the base (1) is provided with an extraction tower body (6), a solvent storage tank (3) and a material storage tank (2) in sequence from left to right. The material storage tank (2) is connected to a material conveying pipe (4) installed inside. The end of the material conveying pipe (4) away from the material storage tank (2) is connected to a material conveying pump (14). The discharge end of the material conveying pump (14) is connected to the upper inner side of the extraction tower body (6) through a guide pipe (36) installed in a connecting manner. The inner side of the solvent storage tank (3) is connected to a solvent conveying pipe (5). The end of the solvent conveying pipe (5) away from the solvent storage tank (3) is connected to a material conveying pump (14). A solvent delivery pump (13) is installed in communication with the end of the solvent delivery pump (13), one end of the solvent delivery pump (13) away from the solvent storage tank (3) is installed in communication with a water storage tank (12), the other end of the water storage tank (12) is connected to the inner side of the extraction tower body (6) through an inlet pipe (11) installed in communication, a mixing component is arranged in the inner side of the extraction tower body (6), and rectangular bins (21) are installed in communication with each other on both sides of the extraction tower body (6) and near the lower position, wherein a first separation component is arranged on the upper side of the inner side of one of the rectangular bins (21), and a second separation component is arranged on the inner side of the other rectangular bin (21); The mixing assembly comprises a support (23) fixedly mounted on the bottom of the inner side of the extraction tower body (6), a liquid transfer assembly is arranged on both sides of the support (23), a bucket seat (19) is fixedly mounted on the upper inner side of the extraction tower body (6), distribution pipes (25) are symmetrically mounted on both sides of the inside of the bucket seat (19), and a stop seat (26) is fixedly mounted on one side edge of the distribution pipe (25), a rotating shaft (22) is rotatably mounted on the inside of the bucket seat (19), a push plate (18) is arranged on the outside of the rotating shaft (22) and inside the bucket seat (19), a driving member is arranged on the upper end of the rotating shaft (22), a screw rod (30) is fixedly mounted on the lower end of the rotating shaft (22), and a push assembly is arranged on the outside of the screw rod (30), vertical rods (32) are fixedly mounted on the upper surfaces of both sides of the support (23), and the upper ends of the two vertical rods (32) are fixedly connected to the bottom of the bucket seat (19).

2. The extraction tower for extracting and removing impurities according to claim 1, characterized in that: The first separation component comprises a hot water outlet (7) installed in communication with the upper inner side of one of the rectangular bins (21), and a light phase storage tank (10) is installed in communication with the interior of the extraction tower body (6) and below the hot water outlet (7).

3. The extraction tower for extracting and removing impurities according to claim 1, characterized in that: The second separation component comprises a hot water inlet (8) which is installed in communication with the lower inner side of another rectangular bin (21), and a heavy phase storage tank (9) is installed in communication with the lower inner side of the extraction tower body (6).

4. The extraction tower for extracting and removing impurities according to claim 1, characterized in that: The driving member comprises a first motor (15) which is connected to and mounted on the upper end of the rotating shaft (22); the outer side of the first motor (15) is fixedly mounted on the top of the extraction tower body (6) via a bracket (17).

5. The extraction tower for extracting and removing impurities according to claim 1, characterized in that: The liquid transfer assembly comprises a sleeve shaft (24) fixedly mounted on one side of a support (23); a rotating wheel (27) is arranged outside the sleeve shaft (24) and inside the rectangular bin (21); one end of the sleeve shaft (24) extends to the outside of the rectangular bin (21) and is connected to a second motor (16); the second motor (16) is fixedly mounted outside the rectangular bin (21).

6. The extraction tower for extracting and removing impurities according to claim 1, characterized in that: The outer thread of the screw rod (30) is matched with a ring sleeve (29), and a push bin (20) is fixedly installed on both sides of the ring sleeve (29). A plurality of suction heads (28) are fixedly installed on the bottom of both sides of the push bin (20). A mounting block (31) is fixedly installed on the outer wall of one end of the push bin (20), and the mounting block (31) is slidably matched with the vertical rod (32). A loading assembly is arranged on the top of both ends of the push bin (20).

7. An extraction tower for extracting and removing impurities according to claim 6, characterized in that: The loading assembly comprises a frame plate (33) fixedly mounted on the top of one end of the pushing bin (20), a connecting rod (34) fixedly mounted on one end of the frame plate (33), a plurality of dispersion boxes (35) being mounted on the outside of the connecting rod (34), and the plurality of dispersion boxes (35) are all made of silicone material.

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