An extraction tower for extraction and impurity removal

Abstract

The present invention belongs to the technical field related to extraction, and specifically discloses an extraction tower for extraction and impurity removal, including a base. On the upper surface of the base, an extraction tower body, a solvent storage tank, and a material storage tank are sequentially arranged from left to right. Inside the material storage tank, a material conveying pipe is connected and installed. One end of the material conveying pipe far away from the material storage tank is connected and installed with a material conveying pump. The discharge end of the material conveying pump is connected and communicated with the upper side inside the extraction tower body through a connected guiding pipe. Inside the solvent storage tank, a solvent conveying pipe is connected and installed. One end of the solvent conveying pipe far away from the solvent storage tank is connected and installed with a solvent conveying pump. One end of the solvent conveying pump far away from the solvent storage tank is connected and installed with a water storage tank. The present invention can facilitate the rapid fusion of materials and solvents in a short time, and thus can efficiently carry out the separation and impurity removal work.

Description

Technical Field

[0001] The present invention belongs to the technical field related to extraction, and specifically discloses an extraction tower for impurity removal by extraction. Background Art

[0002] When treating a toluene solution of zidovudine intermediate (6C), using water as an extraction agent for impurity removal is a common operation method. This method utilizes the solubility difference of the solute in two immiscible liquids, and removes impurities through water extraction to achieve the purpose of purification. Specifically, the mixed system of toluene and water can effectively separate zidovudine intermediate (6C) and certain impurities because these impurities have higher solubility in water than in toluene. By controlling the extraction conditions (such as temperature, extraction time, etc.), the impurity removal effect can be further improved.

[0003] In addition, attention needs to be paid to operation details during the extraction process, such as controlling the temperature, stirring speed, etc., to ensure the extraction efficiency and product quality. After extraction, further separation and drying steps may be required to obtain pure zidovudine intermediate (6C);

[0004] Existing extractions are not sufficient when separating impurities, and the mixing rate is slow when the solvent and water are mixed, resulting in a slow progress of the impurity removal and separation work. Therefore, we need to improve this. Summary of the Invention

[0005] The purpose of the present invention is to solve the problems existing in the background art, and propose an extraction tower for impurity removal by extraction.

[0006] To achieve the above purpose, the present invention discloses an extraction tower for impurity removal by extraction, including a base. On the upper surface of the base, an extraction tower body, a solvent storage tank, and a material storage tank are arranged in sequence from left to right. A material conveying pipe is connected and installed inside the material storage tank. One end of the material conveying pipe away from the material storage tank is connected and installed with a material conveying pump. The discharge end of the material conveying pump is connected and communicated with the upper part inside the extraction tower body through a guiding pipe. A solvent conveying pipe is connected and installed inside the solvent storage tank. One end of the solvent conveying pipe away from the solvent storage tank is connected and installed with a solvent conveying pump. One end of the solvent conveying pump away from the solvent storage tank is connected and installed with a water storage tank. The other end of the water storage tank is connected and communicated with the inside of the extraction tower body through an inlet pipe. A mixing component is arranged inside the extraction tower body. Rectangular bins are connected and installed on both sides inside the extraction tower body and near the lower position. A first separation component is arranged above the inner side of one of the rectangular bins, and a second separation component is arranged inside the other rectangular bin.

[0007] Preferably, the first separation component includes a hot water outlet connected and installed above the inner side of one of the rectangular bins, and a light phase storage tank is connected and installed inside the extraction tower body and below the hot water outlet.

[0008] Preferably, the second separation component includes a hot water inlet connected and installed below the inner side of the other rectangular bin, and a heavy phase storage tank is connected and installed inside the extraction tower body and below the hot water inlet.

[0009] Preferably, the mixing component includes a support fixed to the bottom inside the extraction tower body. There are liquid transfer components on both sides of the support. A hopper seat is fixed above the inner side of the extraction tower body. Distribution pipes are symmetrically connected and installed on both sides inside the hopper seat, and abutment seats are fixed to the edges on one side of each distribution pipe. A rotating shaft is rotatably fitted inside the hopper seat. A pushing plate is arranged inside the hopper seat and outside the rotating shaft. A driving member is arranged at the upper end of the rotating shaft. A screw rod is fixed to the lower end of the rotating shaft. A pushing component is arranged outside the screw rod. Vertical rods are fixed to the upper surfaces on both sides of the support, and the upper ends of the two vertical rods are fixedly connected to the bottom of the hopper seat.

[0010] Preferably, the driving member includes a first motor connected and installed at the upper end of the rotating shaft, and the first motor is fixed to the top of the extraction tower body through a bracket arranged outside it.

[0011] Preferably, the liquid transfer component includes a sleeve shaft fixed to one side of the support. A rotating wheel is arranged outside the sleeve shaft and inside the rectangular bin. One end of the sleeve shaft extends outside the rectangular bin and is connected to a second motor at its end, and the second motor is fixed to the outside of the rectangular bin.

[0012] Preferably, a ring sleeve is in threaded fit with the outside of the screw rod. Pushing bins are fixed to both sides of the ring sleeve. A plurality of suction heads are fixed to the bottoms on both sides of each pushing bin. A mounting block is fixed to the outer wall of one end of the pushing bin, and the mounting block is slidably fitted with the vertical rod. Loading components are arranged at the tops of both ends of the pushing bin.

[0013] Preferably, the loading component includes a frame plate fixed to the top of one end of the pushing bin. A connecting rod is fixed to one end inside the frame plate. A plurality of dispersion boxes are clamped outside the connecting rod, and all the dispersion boxes are made of silica gel material.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] Through the provided material storage tank and material transfer pump, the material can be automatically transferred to the extraction tower body for use correspondingly. Similarly, the solvent storage tank correspondingly transfers the added solvent automatically through the solvent transfer pump.

[0016] By arranging a bucket seat inside the extraction tower body, and a plurality of distribution pipes are connected and installed below the inner side of the bucket seat, it can prompt each distribution pipe to conduct a preliminary mixing of the fed solvent and materials. Then, all the materials are dispersed into the interior of the extraction tower body through each distribution pipe with a split flow setting, and each distribution pipe can deliver the materials to the side of the extraction tower body. At this time, the first motor drives the rotation of the rotating shaft and the screw rod, and the sleeve threadedly engaged with the outer side of the screw rod moves up and down on the outer side of the screw rod under the sliding cooperation of the connecting block and the vertical rod. Thus, the materials distributed around can be brought to the upper part inside the extraction tower body through the loading of the dispersion box. In this way, the materials are fully blended during mixing, and the solvent fully removes the impurities inside the materials. During the gradual rising process of the dispersion box, it will contact the abutment seat outside the distribution pipe. The dispersion box is made of silica gel material, and it can move up and squeeze against the abutment seat, and then pour the liquid inside the dispersion box from above. The second motor uses the rotating wheel at the rectangular bin to enable the internal materials to rotate at a high speed, thereby increasing the contact between the materials and ensuring the mixing and blending of the materials. During the blending process of the materials, the immiscibility of toluene solvent and water is utilized, and they are separated by the method of 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, making it easier for toluene to be separated from water. This operation method helps to improve the extraction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 is a schematic diagram of the structure of the present invention from another angle;

[0019] Figure 3 is a schematic diagram of the partial connection structure inside the extraction tower body of the present invention;

[0020] Figure 4 is a schematic diagram of the connection structure between the bucket seat and the distribution pipe of the present invention;

[0021] Figure 5 is a schematic diagram of the connection structure between the support seat and the rotating wheel of the present invention;

[0022] Figure 6 is a schematic diagram of the connection structure between the material pushing bin and the vertical rod of the present invention;

[0023] Figure 7 is a schematic diagram of the connection structure between the dispersion box and the rack board of the present invention.

[0024] In the figure: 1, base; 2, material storage tank; 3, solvent storage tank; 4, material conveying pipe; 5, solvent conveying 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, pushing plate; 19, bucket seat; 20, pushing bin; 21, rectangular bin; 22, rotating shaft; 23, support; 24, sleeve shaft; 25, distribution pipe; 26, abutting seat; 27, rotating wheel; 28, suction head; 29, ring sleeve; 30, screw; 31, mounting block; 32, vertical rod; 33, shelf board; 34, connecting rod; 35, dispersion box; 36, guiding pipe. Detailed implementation manners

[0025] In order to more clearly understand the above objects, features and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation manners.

[0026] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the present invention is not limited by the limitations of the specific embodiments disclosed below.

[0027] As Figures 1-7 shown, an extraction tower for extraction and impurity removal includes a base 1. On the upper surface of the base 1, an extraction tower body 6, a solvent storage tank 3 and a material storage tank 2 are sequentially arranged from left to right. A material conveying pipe 4 is installed inside the material storage tank 2 in a communicating manner. One end of the material conveying pipe 4 away from the material storage tank 2 is connected and installed with a material delivery pump 14. The discharge end of the material delivery pump 14 is connected and communicated with the upper inner side of the extraction tower body 6 through a communicating guiding pipe 36. A solvent conveying pipe 5 is installed inside the solvent storage tank 3 in a communicating manner. One end of the solvent conveying pipe 5 away from the solvent storage tank 3 is connected and installed with a solvent delivery pump 13. One end of the solvent delivery pump 13 away from the solvent storage tank 3 is connected and installed with a water storage tank 12. The other end of the water storage tank 12 is connected and communicated with the inner side of the extraction tower body 6 through a communicating inlet pipe 11. A mixing component is arranged inside the extraction tower body 6. Rectangular bins 21 are connected and installed on both sides inside the extraction tower body 6 and near the lower position. A first separation component is arranged above the inner side of one of the rectangular bins 21, and a second separation component is arranged inside the other rectangular bin 21.

[0028] The first separation component includes a hot water outlet 7 connected and installed above the inner side of one of the rectangular bins 21. Inside the extraction tower body 6 and below the hot water outlet 7, a light phase storage tank 10 is connected and installed. The lighter flowing phase liquid flows into the light phase storage tank 10.

[0029] The second separation component includes a hot water inlet 8 connected and installed below the inner side of another rectangular bin 21. Inside the extraction tower body 6 and below the hot water inlet 8, a heavy phase storage tank 9 is connected and installed. The liquid with a higher density flows into the heavy phase storage tank 9.

[0030] The mixing component includes a support 23 fixedly installed at the bottom inside the extraction tower body 6. On both sides of the support 23, there are liquid transfer components. Above the inner side of the extraction tower body 6, a hopper seat 19 is fixedly installed. On both sides inside the hopper seat 19, distribution pipes 25 are symmetrically connected and installed. The distribution pipes 25 evenly disperse the materials fed into the hopper seat 19 to each edge inside the extraction tower body 6. On one edge of each distribution pipe 25, a abutment seat 26 is fixedly installed. Inside the hopper seat 19, a rotating shaft 22 is rotatably fitted. Outside the rotating shaft 22 and inside the hopper seat 19, there is a pushing plate 18. Driven by the rotating shaft 22, the pushing plate 18 can accelerate the flow of materials inside the hopper seat 19. At the upper end of the rotating shaft 22, there is a driving component. At the lower end of the rotating shaft 22, a screw 30 is fixedly installed. Outside the screw 30, there is a pushing component. On the upper surfaces of both sides of the support 23, vertical rods 32 are fixedly installed, and the upper ends of the two vertical rods 32 are fixedly connected to the bottom of the hopper seat 19. The vertical rods 32 are installed above the support 23. When the ring sleeve 29 moves in cooperation with the screw 30, the overall structure moves along a vertical up-and-down trajectory.

[0031] The driving component includes a first motor 15 connected and installed at the upper end of the rotating shaft 22. The first motor 15 is fixedly installed at the top of the extraction tower body 6 through a bracket 17 provided on the outside. After the first motor 15 is connected to the power supply, it can drive the rotating shaft 22 and the screw 30 to rotate.

[0032] The liquid transfer component includes a sleeve shaft 24 fixedly installed on one side of the support 23. Outside the sleeve shaft 24 and inside the rectangular bin 21, there is a rotating wheel 27. One end of the sleeve shaft 24 extends outside the rectangular bin 21 and is connected to a second motor 16 at the end. The second motor 16 is fixedly installed outside the rectangular bin 21. After the second motor 16 is connected to the power supply, it can drive the rotation of the rotating wheel 27, thereby enabling the solvent to flow quickly and driving the materials to rotate at the bottom of the extraction tower body 6 to accelerate the fusion.

[0033] The screw 30 is threadedly engaged with a ring sleeve 29. On both sides of the ring sleeve 29, there are pushing bins 20 fixedly installed. At the bottom of both sides of the pushing bins 20, there are multiple suction heads 28 fixedly installed. The pushing bins 20 can increase the contact area with the materials and continuously push the materials and the solvent during mixing. On the outer wall of one end of the pushing bin 20, an installation block 31 is fixedly installed. The installation block 31 is slidably fitted with the vertical rod 32. At the top of both ends of the pushing bin 20, there are loading components.

[0034] 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.

[0035] 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.

[0036] 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 extraction and impurity removal, comprising a base, characterized in that: On the upper surface of the base, an extraction tower body, a solvent storage tank, and a material storage tank are sequentially arranged from left to right. Inside the material storage tank, a material conveying pipe is connected and installed. The end of the material conveying pipe far from the material storage tank is connected and installed with a material conveying pump. The discharge end of the material conveying pump is connected and communicated with the upper part inside the extraction tower body through a connected guiding pipe. Inside the solvent storage tank, a solvent conveying pipe is connected and installed. The end of the solvent conveying pipe far from the solvent storage tank is connected and installed with a solvent conveying pump. One end of the solvent conveying pump far from the solvent storage tank is connected and installed with a water storage tank. The other end of the water storage tank is connected and communicated with the inside of the extraction tower body through a connected inlet pipe. A mixing component is arranged inside the extraction tower body. On both sides inside the extraction tower body and near the lower position, rectangular bins are connected and installed. Above the inner side of one rectangular bin, a first separation component is arranged, and inside the other rectangular bin, a second separation component is arranged; The mixing component includes a support fixed to the bottom inside the extraction tower body. On both sides of the support, liquid transfer components are arranged. Above the inside of the extraction tower body, a hopper seat is fixedly installed. On both sides inside the hopper seat, distribution pipes are symmetrically connected and installed. And on one side edge of each distribution pipe, a resisting seat is fixedly installed. Inside the hopper seat, a rotating shaft is rotatably fitted. Outside the rotating shaft and inside the hopper seat, a pushing plate is arranged. At the upper end of the rotating shaft, a driving component is arranged. At the lower end of the rotating shaft, a screw rod is fixedly installed. Outside the screw rod, a pushing component is arranged. On the upper surfaces of both sides of the support, vertical rods are fixedly installed, and the upper ends of the two vertical rods are fixedly connected to the bottom of the hopper seat; A ring sleeve is in threaded fit with the outside of the screw rod. On both sides of the ring sleeve, pushing bins are fixedly installed. At the bottom of both sides of each pushing bin, a plurality of suction heads are fixedly installed. On the outer wall of one end of the pushing bin, a mounting block is fixedly installed. The mounting block is slidably fitted with the vertical rod. At the tops of both ends of the pushing bin, loading components are arranged; The loading component includes a frame plate fixedly installed at the top of one end of the pushing bin. At one end inside the frame plate, a connecting rod is fixedly installed. Outside the connecting rod, a plurality of dispersion boxes are clamped. All the plurality of dispersion boxes are made of silica gel material; The dispersion box made of silica gel material is in hard contact with the resisting seat. When it rises and is squeezed, the material is poured down from above. The dispersion box makes the material flowing at the distribution pipe undergo up-and-down alternating melting of the material.

2. The extraction tower for extraction and impurity removal according to claim 1, characterized in that: The first separation component includes a hot water outlet connected and installed above the inner side of one of the rectangular bins. Inside the extraction tower body and below the hot water outlet, a light phase storage tank (10) is connected and installed.

3. An extraction column for extraction and impurity removal according to claim 1, characterized in that: The second separation component includes a hot water inlet connected and installed below the inner side of the other rectangular bin. Inside the extraction tower body and below the hot water inlet, a heavy phase storage tank is connected and installed.

4. An extraction column for extraction and impurity removal according to claim 1, characterized in that: The driving component includes a first motor connected and installed at the upper end of the rotating shaft. The outside of the first motor is fixedly installed on the top of the extraction tower body through a provided support.

5. An extraction column for extraction and impurity removal according to claim 1, characterized in that: The liquid transfer component includes a sleeve shaft fixedly installed on one side of the support. Outside the sleeve shaft and inside the rectangular bin, a rotating wheel is arranged. One end of the sleeve shaft extends to the outside of the rectangular bin and its end is connected with a second motor. The second motor is fixedly installed outside the rectangular bin.

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