Novel packed tower extraction equipment

Abstract

The utility model relates to the technical field of extraction equipment, and particularly discloses novel packed tower extraction equipment, which comprises a tower body, a top cover arranged at the upper end of the tower body, a support ring fixedly connected inside the tower body, a first packing cylinder arranged above the support ring, a first cylinder cover arranged above the first packing cylinder, and a second cylinder cover arranged above the first packing cylinder, the upper end of the first barrel cover is fixedly connected with a supporting barrel, a second filling barrel is arranged above the supporting barrel, and a second barrel cover is arranged above the second filling barrel; the two-phase mass transfer efficiency is greatly improved through a liquid film or dispersed liquid drops formed on the surface of the filler, liquid is continuously discharged after extraction, stable operation of equipment is ensured through cooperation with the synergistic effect of a sealing ring, a pressing ring and a limiting column, continuous production is achieved, the mass transfer effect is enhanced, and the pressure of the pressing ring on the second barrel cover is relieved; and the second barrel cover, the second filling barrel and other components are sequentially taken down, and after new filler is filled, reverse operation and installation are conducted, in this way, the filler installation structure is optimized, and rapid replacement and maintenance of the filler are facilitated.

Description

Technical Field

[0001] This utility model relates to the field of extraction equipment technology, and specifically discloses a novel packed tower extraction device. Background Technology

[0002] Extraction, also known as solvent extraction or liquid-liquid extraction, is a unit operation that separates mixtures by utilizing the different solubilities of components in a solvent. Specifically, it involves using the difference in solubility or partition coefficients of a substance in two immiscible (or slightly soluble) solvents to transfer a solute from one solvent to the other. It is widely used in chemical, metallurgical, and food industries, and is commonly applied in the petroleum refining industry. Through extraction, the desired substance can be extracted from a solid or liquid mixture.

[0003] Chinese Patent No. CN221513578U discloses a novel packed tower extraction device. The device utilizes a stirring motor, stirring rod, and stirring blades located in the upper part of the extraction tower. The stirring motor drives the stirring rod and blades to rotate at a constant speed in the lower part of the tower, enabling uniform mixing of the materials within the tower and improving the extraction rate. Furthermore, the stirring blades are slidably mounted on the lower end of the stirring rod via a connecting frame and a connecting sleeve. The lower side of the connecting frame is rotatably connected to one end of the telescopic rod of an electric push rod via a bearing seat. This allows the electric push rod to extend and retract, adjusting the height of the stirring blades to accommodate different liquid levels within the extraction tower, further enhancing the extraction efficiency.

[0004] The aforementioned document discloses a novel packed tower extraction device, which is essentially an intermittent operation mode. The device needs to drain liquid alternately through the first and second drain pipes, indicating that it needs to be stopped, drained, cleaned, and re-fed after each processing, making continuous production impossible. Intermittent operation results in low production efficiency and long operation cycle, making it difficult to meet the needs of continuous extraction. In addition, if packing is added to the stirred tower, the high-speed rotating blades will break the packing (especially brittle materials such as ceramics and plastics), causing the packing layer to collapse or block the flow channel, completely losing the mass transfer function.

[0005] In addition, some equipment will have packing inside to enhance the mass transfer effect. The packing is usually fixed by the support structure and limiting device inside the tower. These two devices play the roles of supporting the weight of the packing and limiting the displacement of the packing, respectively. When the packing needs to be replaced, the top cover of the tower must be removed first, and then the upper limiting mesh plate must be removed. Only after the packing is fully exposed can it be taken out from inside the tower. Since the limiting mesh plate needs to be removed and the packing to be taken out is located deep in the tower, the difficulty of replacing the packing is increased.

[0006] Therefore, a new type of packed tower extraction equipment is needed to solve the above problems. Utility Model Content

[0007] This invention proposes a novel packed tower extraction device that enables continuous production to improve efficiency. It enhances the mass transfer effect of two-phase fluids by filling with packing material and optimizes the packing installation structure to facilitate rapid replacement and maintenance of the packing material.

[0008] This utility model is implemented as follows: a novel packed tower extraction device includes a tower body, a top cover at the upper end of the tower body, a support ring fixedly connected inside the tower body, a first filling cylinder above the support ring, a first cylinder cover above the first filling cylinder, a support cylinder fixedly connected to the upper end of the first cylinder cover, a second filling cylinder above the support cylinder, a second cylinder cover above the second filling cylinder, and sealing rings installed at the lower ends of the second cylinder cover, the second filling cylinder, the first cylinder cover, and the first filling cylinder.

[0009] A connecting mechanism is provided on the upper side of the inner wall of the first filling cylinder. The connecting mechanism includes a second cylinder cover, a sleeve hole through which the upper end of the first cylinder cover and the bottom end of the inner wall of the second filling cylinder are opened. A connecting rod passing through the three sleeve holes is fixedly connected to the bottom end of the inner wall of the first filling cylinder. A screw is fixedly connected to the upper end of the connecting rod. A circular disc is threadedly connected to the outer wall of the screw. A clamping ring that abuts against the upper end of the second cylinder cover is fixedly connected to the lower end of the circular disc. Multiple limiting posts arranged in a circumferential array and abutting against the upper end of the circular disc are installed on the top of the inner wall of the top cover.

[0010] The right side of the outer wall of the tower body is connected to a heavy liquid inlet and a light liquid inlet, the bottom side of the outer wall of the tower body is connected to a heavy liquid outlet, and the upper end of the top cover is connected to a light liquid outlet.

[0011] As a preferred embodiment of the novel packed tower extraction device of this utility model, the upper edge of the tower body is provided with an annular groove, the interior of the annular groove is provided with an annular sealing gasket, and the lower edge of the top cover is fixedly connected with an extrusion ring extending into the annular groove and abutting against the annular sealing gasket.

[0012] As a preferred embodiment of the novel packed tower extraction device of this utility model, the outer wall of the top cover and the outer wall of the tower body are both fixedly connected with annular plates, and the two annular plates are detachably connected by a plurality of evenly distributed bolts.

[0013] As a preferred embodiment of the novel packed tower extraction equipment of this utility model, a telescopic aluminum tube is installed at the other end of the light liquid outlet, and a quick-release connector is installed at the other end of the telescopic aluminum tube.

[0014] As a preferred embodiment of the novel packed tower extraction equipment of this utility model, flanges are fixedly connected to the other ends of the heavy liquid inlet, light liquid inlet, and heavy liquid outlet.

[0015] In a preferred embodiment of the novel packed tower extraction device of this utility model, the portions of the second cylinder cover and the first cylinder cover located outside the connecting rod and inside the sealing ring are both mesh structures, and the portions of the bottom sides of the second filling cylinder and the first filling cylinder located outside the connecting rod and inside the sealing ring are both mesh structures.

[0016] As a preferred embodiment of the novel packed tower extraction equipment of this utility model, a handle is installed at the upper end of the circular disc.

[0017] The beneficial effects of this utility model are:

[0018] 1. This equipment utilizes a counter-current contact design, with the heavy and light phase liquids entering from the middle and lower inlets of the tower body, respectively. The liquids flow through a double-layer packing (such as wire mesh or ceramic packing), and the liquid film or dispersed droplets formed on the packing surface significantly enhance the two-phase mass transfer efficiency. The extracted liquid is continuously discharged. Combined with the synergistic action of sealing rings, pressure rings, and limiting columns, this ensures stable equipment operation, enabling continuous production and enhanced mass transfer.

[0019] 2. When the packing needs to be replaced, disconnect the quick-release connector from the external pipeline, remove the top cover, and lift the packing assembly, consisting of the circular disc, screw, etc., detach it from the tower body. Rotate the handle to move the circular disc upwards and remove the screw, releasing the pressure of the clamping ring on the second cylinder cover. Remove the second cylinder cover, second packing cylinder, and other components in sequence, fill with new packing, and then reverse the installation process. This method optimizes the packing installation structure and facilitates quick packing replacement and maintenance. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0021] Figure 1 This is a front sectional view of a novel packed tower extraction device according to this utility model.

[0022] Figure 2 For the present utility model Figure 1 Enlarged view of point A in the middle

[0023] Figure 3 For the present utility model Figure 1 Enlarged view of section B in the middle.

[0024] Figure 4 This is a partial structural diagram of the present invention;

[0025] Figure 5This is a partial structural diagram of the present invention.

[0026] The markings in the diagram are: 1. Tower body; 2. Top cover; 3. Support ring; 4. First filling cylinder; 5. First cylinder cover; 6. Second filling cylinder; 7. Second cylinder cover; 8. Support cylinder; 9. Sealing ring; 10. Annular plate; 11. Sleeve hole; 12. Connecting rod; 13. Screw; 14. Circular disc; 15. Compression ring; 16. Limiting post; 17. Heavy liquid inlet; 18. Light liquid inlet; 19. Heavy liquid outlet; 20. Light liquid outlet; 21. Telescopic aluminum tube; 22. Quick-release connector; 23. Annular groove; 24. Annular sealing gasket. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.

[0028] Please see Figure 1-5 A novel packed tower extraction device includes a tower body 1, a top cover 2 at the upper end of the tower body 1, a support ring 3 fixedly connected inside the tower body 1, a first filling cylinder 4 above the support ring 3, a first cylinder cover 5 above the first filling cylinder 4, a support cylinder 8 fixedly connected to the upper end of the first cylinder cover 5, a second filling cylinder 6 above the support cylinder 8, a second cylinder cover 7 above the second filling cylinder 6, and sealing rings 9 installed at the lower ends of the second cylinder cover 7, the second filling cylinder 6, the first cylinder cover 5, and the first filling cylinder 4.

[0029] A connecting mechanism is provided on the upper side of the inner wall of the first filling cylinder 4. The connecting mechanism includes a connecting hole 11 that passes through the upper end of the second cylinder cover 7, the upper end of the first cylinder cover 5, and the bottom end of the inner wall of the second filling cylinder 6. A connecting rod 12 that passes through the three connecting holes 11 is fixedly connected to the bottom end of the inner wall of the first filling cylinder 4. A screw 13 is fixedly connected to the upper end of the connecting rod 12. A circular disc 14 is threadedly connected to the outer wall of the screw 13. A clamping ring 15 that abuts against the upper end of the second cylinder cover 7 is fixedly connected to the lower end of the circular disc 14. Multiple limiting posts 16 that are arranged in a circumferential array and abut against the upper end of the circular disc 14 are installed on the top of the inner wall of the top cover 2.

[0030] The right side of the outer wall of tower body 1 is connected to a heavy liquid inlet 17 and a light liquid inlet 18, the bottom side of the outer wall of tower body 1 is connected to a heavy liquid outlet 19, and the upper end of the top cover 2 is connected to a light liquid outlet 20.

[0031] In this embodiment: During use, the heavy phase liquid enters through a pressure pipe from the heavy liquid inlet 17 at the upper right side of the tower body 1, while the light phase liquid enters through a pressure pipe from the light liquid inlet 18 at the lower right side of the tower body 1. The heavy phase, due to its higher density, flows downwards, while the light phase, due to its lower density, flows upwards, forming a counter-current contact. The two phases flow sequentially through the packing layers in the second packing cylinder 6 and the first packing cylinder 4. The type of packing can be selected according to requirements, such as wire mesh or ceramic packing. The packing, through the liquid film or dispersed droplets formed on its surface, significantly increases the contact area between the two phases, enhancing mass transfer efficiency. The extracted heavy phase is continuously discharged from the heavy liquid outlet 19 at the bottom of the tower, while the light phase flows from the light liquid outlet 20 at the top to the external pipe. Because the circular disc 14 is threadedly connected to the screw 13, and the clamping ring 15 applies downward pressure to the second cylinder cover 7, and the connecting rod 12 supports the screw 13, multiple sealing rings 9 are under pressure, preventing liquid leakage. The top cover 2 and the tower body 1 are statically sealed by an annular sealing gasket 24 and a compression ring. At the same time, multiple limiting posts 16 restrict the position of the circular disk 14. Combined with the support effect of the support ring 3, the second cylinder cover 7, the second filling cylinder 6, the first cylinder cover 5 and the first filling cylinder 4 are prevented from moving up and down, ensuring stable operation of the equipment, realizing continuous production to improve efficiency, and enhancing the mass transfer effect of the two-phase fluid through the packing.

[0032] When the packing needs to be replaced, first disconnect the quick-release connector 22 from the external pipeline and remove the top cover 2. Then lift the circular disc 14, screw 13, connecting rod 12, second cylinder cover 7, second filling cylinder 6, first cylinder cover 5, and first filling cylinder 4 upwards, removing them from the tower body 1. Next, rotate the circular disc 14 upwards, causing it to retract from the outer wall of the screw 13, releasing the pressure of the clamping ring 15 on the second cylinder cover 7. At this point, the second cylinder cover 7 can be lifted vertically along the connecting rod 12 and removed, followed by the second filling cylinder 6, then the support cylinder 8 and the first cylinder cover 5, and finally the first filling cylinder 4. Fill the second filling cylinder 6 and the second cylinder cover 7 with the new packing material, and then reverse the process to reinstall. This method optimizes the packing installation structure and facilitates quick replacement and maintenance of the packing.

[0033] As a technical optimization of this utility model, an annular groove 23 is provided on the upper edge of the tower body 1, and an annular sealing gasket 24 is provided inside the annular groove 23. An extrusion ring extending into the annular groove 23 and abutting against the annular sealing gasket 24 is fixedly connected to the lower edge of the top cover 2.

[0034] In this embodiment: when the top cover 2 is installed, its lower edge compression ring is inserted into the annular groove 23 on the upper edge of the tower body 1, compressing the annular sealing gasket 24 to form a tight static sealing structure.

[0035] As a technical optimization of this utility model, the outer wall of the top cover 2 and the outer wall of the tower body 1 are both fixedly connected with annular plates 10, and the two annular plates 10 are detachably connected by multiple evenly distributed bolts.

[0036] In this embodiment, the top cover 2 and the annular plate 10 of the tower body 1 are fastened together by bolts. When the bolts are tightened, the two annular plates 10 press against each other to fix the top cover 2 and the tower body 1.

[0037] As a technical optimization of this utility model, a telescopic aluminum tube 21 is installed at the other end of the light liquid outlet 20, and a quick-release connector 22 is installed at the other end of the telescopic aluminum tube 21.

[0038] In this embodiment: the light phase liquid flows into the telescopic aluminum tube 21 through the light liquid outlet 20 and is output through the quick-release connector 22 connected to the external pipeline. The telescopic aluminum tube 21 can extend and retract axially to accommodate the installation and disassembly of the quick-release connector 22. The quick-release connector 22 facilitates quick connection or disconnection of the pipeline.

[0039] As a technical optimization of this utility model, flanges are fixedly connected to the other ends of the heavy liquid inlet 17, the light liquid inlet 18, and the heavy liquid outlet 19.

[0040] In this embodiment: the heavy liquid inlet 17, the light liquid inlet 18, and the heavy liquid outlet 19 are connected to the external pipeline through flanges, and bolts are tightened through the flange holes to achieve a sealed connection.

[0041] As a technical optimization of this utility model, the portions of the second cylinder cover 7 and the first cylinder cover 5 located outside the connecting rod 12 and inside the sealing ring 9 are both mesh structures, and the portions of the bottom sides of the second filling cylinder 6 and the first filling cylinder 4 located outside the connecting rod 12 and inside the sealing ring 9 are both mesh structures.

[0042] In this embodiment: the two-phase liquid flows through the mesh structure of the second cylinder cover 7, the first cylinder cover 5, the second filling cylinder 6, and the first filling cylinder 4, and comes into contact with the internal packing. The liquid flows freely through the mesh holes, and the mesh structure supports and fixes the packing.

[0043] As a technical optimization of this utility model, a handle is installed on the upper end of the circular disk 14.

[0044] In this embodiment: the operator rotates the handle at the top of the circular disc 14, causing the circular disc 14 to rotate and move up and down along the screw 13, thereby adjusting the position of the clamping ring 15 to achieve the clamping or loosening of the filling component.

[0045] The working principle and usage process of this utility model are as follows: During use, the heavy phase liquid enters through a pressure pipe from the heavy liquid inlet 17 at the upper right side of the tower body 1, while the light phase liquid enters through a pressure pipe from the light liquid inlet 18 at the lower right side of the tower body 1. Due to its higher density, the heavy phase flows downwards, while the light phase flows upwards, forming a counter-current contact. The two phases flow sequentially through the packing layers in the second packing cylinder 6 and the first packing cylinder 4. The type of packing can be selected according to requirements, such as metal wire mesh or ceramic packing. The packing, through the liquid film or dispersed droplets formed on its surface, significantly increases the contact area between the two phases, enhancing mass transfer efficiency. Its mesh structure allows the liquid to pass freely while simultaneously fixing the packing. The extracted heavy phase is continuously discharged from the heavy liquid outlet 19 at the bottom of the tower, while the light phase is output from the light liquid outlet 20 at the top via a telescopic aluminum tube 21 and a quick-release connector 22, flowing into an external pipeline. Because the circular disc 14 is threadedly connected to the screw 13, and the pressure ring 15 applies downward pressure to the second cylinder cover 7, and the connecting rod 12 supports the screw 13, the multiple sealing rings 9 are under pressure to prevent liquid leakage. The top cover 2 and the tower body 1 are statically sealed by the annular sealing gasket 24 and the compression ring. At the same time, multiple limiting posts 16 restrict the position of the circular disc 14. Combined with the supporting effect of the support ring 3, the second cylinder cover 7, the second filling cylinder 6, the first cylinder cover 5, and the first filling cylinder 4 are prevented from moving vertically, ensuring stable operation of the equipment, realizing continuous production to improve efficiency, and enhancing the two-phase fluid mass transfer effect through the packing.

[0046] When the packing needs to be replaced, first disconnect the quick-release connector 22 from the external pipeline, loosen the bolts between the tower body 1 and the top cover 2, and remove the top cover 2. Then, lift the circular disc 14, screw 13, connecting rod 12, second cylinder cover 7, second filling cylinder 6, first cylinder cover 5, and first filling cylinder 4 upwards, removing them from inside the tower body 1. Next, rotate the handle to drive the circular disc 14 upwards, causing it to exit from the outer wall of the screw 13, releasing the pressure of the clamping ring 15 on the second cylinder cover 7. At this point, the second cylinder cover 7 can be lifted vertically along the connecting rod 12 and removed, followed by the second filling cylinder 6, then the support cylinder 8 and the first cylinder cover 5, and finally the first filling cylinder 4. Fill the second filling cylinder 6 and the second cylinder cover 7 with the new packing material, and then reverse the operation to reinstall. This method optimizes the packing installation structure and facilitates quick replacement and maintenance of the packing.

[0047] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0048] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A novel packed tower extraction device, comprising a tower body (1), wherein a top cover (2) is provided at the upper end of the tower body (1), characterized in that: The tower body (1) is fixedly connected to a support ring (3). A first filling cylinder (4) is provided above the support ring (3). A first cylinder cover (5) is provided above the first filling cylinder (4). A support cylinder (8) is fixedly connected to the upper end of the first cylinder cover (5). A second filling cylinder (6) is provided above the support cylinder (8). A second cylinder cover (7) is provided above the second filling cylinder (6). Sealing rings (9) are installed at the lower ends of the second cylinder cover (7), the second filling cylinder (6), the first cylinder cover (5), and the first filling cylinder (4). A connecting mechanism is provided on the upper side of the inner wall of the first filling cylinder (4). The connecting mechanism includes a socket hole (11) that is opened through the upper end of the second cylinder cover (7), the first cylinder cover (5), and the bottom end of the inner wall of the second filling cylinder (6). A connecting rod (12) that passes through the three socket holes (11) is fixedly connected to the bottom end of the inner wall of the first filling cylinder (4). A screw (13) is fixedly connected to the upper end of the connecting rod (12). A circular disc (14) is threadedly connected to the outer wall of the screw (13). A clamping ring (15) that abuts against the upper end of the second cylinder cover (7) is fixedly connected to the lower end of the circular disc (14). A plurality of limiting posts (16) that are arranged in a circumferential array and abut against the upper end of the circular disc (14) are installed on the top of the inner wall of the top cover (2). The right side of the outer wall of the tower body (1) is connected to a heavy liquid inlet (17) and a light liquid inlet (18), the bottom side of the outer wall of the tower body (1) is connected to a heavy liquid outlet (19), and the upper end of the top cover (2) is connected to a light liquid outlet (20).

2. The novel packed tower extraction device according to claim 1, characterized in that: The upper edge of the tower body (1) is provided with an annular groove (23), and an annular sealing gasket (24) is provided inside the annular groove (23). The lower edge of the top cover (2) is fixedly connected with an extrusion ring that extends into the annular groove (23) and abuts against the annular sealing gasket (24).

3. The novel packed tower extraction device according to claim 1, characterized in that: The outer wall of the top cover (2) and the outer wall of the tower body (1) are both fixedly connected with annular plates (10), and the two annular plates (10) are detachably connected by a plurality of evenly distributed bolts.

4. The novel packed tower extraction device according to claim 1, characterized in that: The other end of the light liquid outlet (20) is equipped with a telescopic aluminum tube (21), and the other end of the telescopic aluminum tube (21) is equipped with a quick-release connector (22).

5. The novel packed tower extraction device according to claim 1, characterized in that: Flanges are fixedly connected to the other ends of the heavy liquid inlet (17), light liquid inlet (18), and heavy liquid outlet (19).

6. The novel packed tower extraction device according to claim 1, characterized in that: The portions of the second cylinder cap (7) and the first cylinder cap (5) located outside the connecting rod (12) and inside the sealing ring (9) are both mesh structures. The portions of the bottom sides of the second filling cylinder (6) and the first filling cylinder (4) located outside the connecting rod (12) and inside the sealing ring (9) are both mesh structures.

7. The novel packed tower extraction device according to claim 1, characterized in that: A handle is installed at the upper end of the circular disk (14).

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