Stainless steel activated carbon elution column with wall leakage prevention function
By installing anti-leakage rings and insulation sleeves in the stainless steel activated carbon elution column, the problems of wall leakage and temperature control were solved, the elution efficiency was improved, the production cost was reduced, and uniform elution and precise temperature control were achieved inside and outside the activated carbon column.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-22
- Publication Date
- 2026-03-31
AI Technical Summary
Existing stainless steel activated carbon elution columns suffer from wall leakage, leading to inconsistent elution results, over-elution or under-elution, increasing production costs, and the lack of temperature control measures affects the refining effect of traditional Chinese medicine.
Design a stainless steel activated carbon elution column with anti-leakage function, which is equipped with four layers of anti-leakage rings and insulation sleeve, and has a drain port and flow meter. The activated carbon column is formed by pressurization through a liquid pump, so as to achieve temperature-controlled elution and precise flow control.
It improves elution efficiency, reduces production costs, ensures uniform elution inside and outside the activated carbon column, reduces the number of activated carbon columns used, and achieves precise temperature control and flow management.
Smart Images
Figure CN224056734U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of traditional Chinese medicine refining equipment, specifically relating to a stainless steel activated carbon elution column with anti-wall leakage function. Background Technology
[0002] Stainless steel activated carbon elution columns are commonly used equipment in the adsorption and separation process of effective components in the refining of traditional Chinese medicine. The activated carbon powder is fine, and after loading onto the column, it forms an activated carbon column. The elution pressure varies with the height of the carbon cake, and the conventional elution pressure is about 0.1-0.2 MPa.
[0003] In existing technologies, stainless steel activated carbon elution columns used in large-scale production typically have an inner diameter of 500mm. After feeding, they form activated carbon columns with a carbon surface height of approximately 410mm. The elution internal pressure is close to 0.2MPa, and often 8-16 activated carbon columns are needed for a single production run. Due to wall effects and leakage, as well as variations in carbon surface height and the large number of columns, the elution speed of each column is inconsistent under the same eluent pressure system, resulting in significant differences in elution performance between columns. Activated carbon columns with high eluent flow rates may over-elute, introducing impurities, while those with low eluent flow rates may under-elute, leading to the loss of target components. This results in a substantial increase in eluent volume, consequently increasing the concentration volume and time, and raising production costs.
[0004] Meanwhile, existing activated carbon elution columns lack anti-leakage function. The outer edge of the activated carbon cake and the inner wall of the equipment are weak points, forming a wall effect. Under elution pressure, the flow rate of the eluent column wall is much greater than the flow rate of the carbon cake, causing over-elution of the outer edge of the activated carbon cake while the inner ring of the cake is often not eluted. Over-elution of the outer edge of the carbon cake introduces impurities, while inadequate elution of the inner ring results in component loss and reduced yield of effective components. At the same time, the eluent volume increases significantly, leading to a large concentration and increased production costs.
[0005] The separation of effective components in the purification of traditional Chinese medicine is closely related to the elution temperature, and the elution effect varies under different temperature conditions. In the existing technology, stainless steel activated carbon elution columns lack heat preservation measures, making it difficult to achieve temperature-controlled elution.
[0006] In existing technologies, most stainless steel activated carbon elution columns used in production lack drain outlets. For processes involving activated carbon adsorption and separation elution of traditional Chinese medicine products that require liquid replacement, the lack of a pump to pressurize the eluent after the first eluent has been eluted causes the first eluent to stagnate above the carbon surface of the activated carbon column. The conventional operation involves using vacuum to remove the stagnant first eluent from the bottom, which often easily cracks the carbon cake, creating channels. Utility Model Content
[0007] The technical problem to be solved by this utility model is to provide a stainless steel activated carbon elution column with anti-wall leakage function to address the shortcomings of the prior art. This stainless steel activated carbon elution column has high elution efficiency, anti-wall leakage function, improves the wall flow problem between the activated carbon column and the inner wall of the equipment in the prior art, has heat preservation measures to achieve temperature control elution, is equipped with a drain port to discharge the retained eluent, is easy to install and recycle, and can be widely applied.
[0008] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a stainless steel activated carbon elution column with anti-wall leakage function, characterized in that it includes a column top, a column body and a column bottom, the inner diameter of the stainless steel activated carbon elution column is 1200mm, the carbon surface height of the activated carbon column is 290mm, and the elution pressure is 0.1Mpa. Compared with the existing activated carbon columns, the elution pressure is significantly reduced, the feed rate is larger, the number of activated carbon elution columns used in batch production is reduced, and the control is easier.
[0009] A feed inlet is fixedly embedded at the center of the top of the column, and a spray ball is fixedly connected to the feed inlet inside the column. A liquid loss-in-weight scale is installed at the bottom outlet of the activated carbon adsorption tank. The liquid loss-in-weight scale includes a weighing system and a liquid pump. The weighing system weighs the activated carbon adsorption liquid released from the activated carbon adsorption tank, and then the liquid pump pressurizes the activated carbon adsorption liquid and inputs it into the stainless steel activated carbon elution column through the feed inlet to form an activated carbon column. The feed inlet can also serve as a cleaning port. After elution, the inside of the stainless steel activated carbon elution column is sprayed and cleaned through the feed inlet and the spray ball.
[0010] Multiple anti-wall leakage rings are installed at intervals from bottom to top on the inner wall of the column. The anti-wall leakage rings are 40mm wide and 2mm thick. Preferably, there are four anti-wall leakage rings, which are arranged from bottom to top as the first anti-wall leakage ring, the second anti-wall leakage ring, the third anti-wall leakage ring, and the fourth anti-wall leakage ring. The distance between the first anti-wall leakage ring and the sieve plate is 100mm, the distance between the second and first anti-wall leakage rings is 90mm, the distance between the third and second anti-wall leakage rings is 80mm, and the distance between the fourth and third anti-wall leakage rings is 80mm.
[0011] A wall effect occurs between the outer edge of the activated carbon column and the inner wall of the column, generating wall flow. The wall flow flows downward until it falls into the anti-leakage ring and can no longer flow downward. Instead, it flows from the inner edge of the anti-leakage ring into the activated carbon column, thus avoiding the wall flow problem.
[0012] The anti-leakage ring is inclined, and the angle between the cross-section of the anti-leakage ring and the inner wall of the column is 30°~85°, preferably 75°, that is, the angle between the cross-section of the anti-leakage ring and the horizontal plane is 15°. The column is covered with an insulation sleeve, and a drain port is provided on the side wall of the column. A vent is provided at the top of the column. When it is necessary to discharge the original eluent retained on the upper surface of the activated carbon column from the drain port, the vent can be opened to connect the vent and the drain port to form a channel, which is conducive to the discharge of the original eluent retained on the upper surface of the activated carbon column during liquid replacement and elution.
[0013] The column base includes a discharge bottom cover, on the upper surface of which is provided a sieve plate with a diameter of 1200mm. Filter paper can be laid on the sieve plate to prevent activated carbon leakage. An eluent outlet is provided at the bottom end of the discharge bottom cover. During the elution process, the eluent flows out from the eluent outlet. A flow meter is provided on the eluent outlet, which can display the instantaneous flow rate and the total flow rate, making it easy to adjust the flow rate and to stop the operation when the total flow rate reaches the predetermined elution endpoint.
[0014] Preferably, a suspension arm is fixedly installed on the top of the column, a bottom cover cylinder is hinged to the outer end of the suspension arm, a rotating arm is fixedly installed at the bottom end of the discharge bottom cover, the rotating arm is hinged to the end of the output shaft of the bottom cover cylinder, an installation arm is fixedly installed on the outer wall of the column, and the left side of the rotating arm is configured as a protrusion, the protrusion being hinged to the installation arm.
[0015] The bottom cover cylinder is used to open and close the discharge bottom cover. The output shaft of the bottom cover cylinder extends and retracts, which can drive the rotating arm to rotate relative to the mounting arm. The rotating arm drives the discharge bottom cover to rotate relative to the column, thereby rotating the discharge bottom cover to the bottom end of the column and connecting the discharge bottom cover with the bottom end of the column.
[0016] Preferably, a locking clamp is provided on the top of the discharge bottom cover. The locking clamp is used to connect the discharge bottom cover and the bottom end of the column. Two locking cylinders are provided on the top side of the discharge bottom cover. The locking cylinders are used to adjust the locking clamp. The locking clamp consists of two components connected by the locking cylinders. The bottom end of the locking cylinder is hinged to one end of one of the components, and the output shaft of the locking cylinder is hinged to one end of the other component. When the output shafts of the two locking cylinders retract simultaneously, the two components can be brought closer to each other, thereby achieving a sealed connection between the discharge bottom cover and the bottom end of the column.
[0017] Preferably, the top of the column is further provided with a pressure gauge hole for installing a pressure gauge and a temperature gauge hole for installing a temperature gauge, so as to monitor the elution pressure and elution temperature through the pressure gauge and temperature gauge.
[0018] Preferably, a first observation hole is provided at the top of the column, and a circular transparent glass plate is provided inside the first observation hole. The first observation hole is used to observe the situation inside the activated carbon elution column. A second observation hole is provided at the side end of the column. The second observation hole is elongated and is used to observe the height of the neutral carbon surface inside the column, the height of the eluent, and the situation inside the column during the elution process.
[0019] Preferably, four suspension brackets are evenly fixedly installed on the outer periphery of the column for suspending the device.
[0020] Preferably, a manhole is provided at the top of the column, which can be opened when necessary to perform appropriate operations on the activated carbon elution column, and a drain outlet is provided at the bottom of the discharge cover to promptly discharge waste liquid or a small amount of leaked activated carbon.
[0021] Preferably, the insulation jacket is provided with an insulation liquid inlet and an insulation liquid outlet on both sides, and a fluid temperature control device is connected to the insulation liquid inlet and the insulation liquid outlet. The fluid temperature control device controls the temperature of the fluid entering the insulation jacket, thereby achieving control of the elution temperature.
[0022] Preferably, valves are provided at the feed inlet, drain outlet, air outlet, eluent outlet, and sewage outlet for easy adjustment and control.
[0023] This utility model has the following advantages compared with the prior art:
[0024] 1. This utility model has four layers of anti-wall leakage rings inside the column, which can allow the wall flow generated between the activated carbon column and the column body due to the wall effect to flow back into the activated carbon column. This avoids the problem of excessive elution of the outer ring of the activated carbon column and insufficient elution of the inner ring in the prior art, thereby improving elution efficiency and reducing production costs.
[0025] 2. The stainless steel activated carbon elution column in this utility model has an inner diameter of 1200mm, a carbon surface height of 209mm, and an elution pressure of 0.1Mpa, which improves the elution efficiency, reduces the elution pressure, reduces the number of activated carbon elution columns used in batch production, and facilitates precise control.
[0026] 3. This utility model has an insulation sleeve outside the column and a thermometer and a pressure gauge on the top of the column to monitor the elution temperature and elution pressure. The elution temperature can be controlled by a fluid temperature control device. A drain port is provided on the side of the column to drain the eluent retained on the surface of the activated carbon elution column so that the eluent can be replaced for a second elution.
[0027] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Attached Figure Description
[0028] Figure 1 This is a schematic diagram of the structure of this utility model.
[0029] Figure 2 This is a top view of the present invention.
[0030] Explanation of reference numerals in the attached figures:
[0031] Detailed Implementation
[0032] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.
[0033] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0034] like Figures 1-2 As shown, this utility model provides a stainless steel activated carbon elution column with anti-leakage function, including a column top 21, a column body 22 and a column bottom 23. The inner diameter of the stainless steel activated carbon elution column is 1200mm, which greatly increases the single column feed rate. The activated carbon column carbon surface height is 290mm, and the elution pressure is 0.1Mpa. Compared with existing activated carbon columns, the elution pressure is significantly reduced, the feed rate is larger, the number of activated carbon elution columns used in batch production is reduced, and the control is easier.
[0035] A feed inlet 9 is fixedly embedded at the center of the top of the column 21, and a spray ball 8 is fixedly connected to the feed inlet 9 inside the column 21. A liquid loss-in-weight scale is provided at the bottom outlet of the activated carbon adsorption tank. The liquid loss-in-weight scale includes a weighing system and a liquid pump. The weighing system weighs the activated carbon adsorption liquid released from the activated carbon adsorption tank, and then the liquid pump pressurizes the activated carbon adsorption liquid and inputs it into the stainless steel activated carbon elution column through the feed inlet 9 to form an activated carbon column. The feed inlet 9 can also be used as a cleaning port. After elution, the inside of the stainless steel activated carbon elution column is sprayed and cleaned through the feed inlet 9 and the spray ball 8.
[0036] Multiple anti-wall leakage rings 3 are installed sequentially from bottom to top on the inner wall of the column 22. Each anti-wall leakage ring 3 is 40mm wide and 2mm thick. In this embodiment, four anti-wall leakage rings 3 are selected, namely, the first anti-wall leakage ring, the second anti-wall leakage ring, the third anti-wall leakage ring, and the fourth anti-wall leakage ring from bottom to top. The distance between the first anti-wall leakage ring and the sieve plate 2 is 100mm, the distance between the second anti-wall leakage ring and the first anti-wall leakage ring is 90mm, the distance between the third anti-wall leakage ring and the second anti-wall leakage ring is 80mm, and the distance between the fourth anti-wall leakage ring and the third anti-wall leakage ring is 80mm.
[0037] A wall effect occurs between the outer edge of the activated carbon column and the inner wall of the column 22, generating wall flow. The wall flow flows downward until it falls into the anti-wall leakage ring 3 and can no longer flow downward. Instead, it flows from the inner edge of the anti-wall leakage ring 3 into the activated carbon column, thus avoiding the wall flow problem.
[0038] The anti-leakage ring 3 is inclined, and the angle between the cross section of the anti-leakage ring 3 and the inner wall of the column 22 is 30°~85°, preferably 75°, that is, the angle between the cross section of the anti-leakage ring 3 and the horizontal plane is 15°. The column 22 is covered with a heat insulation sleeve 4. The side wall of the column 22 is also provided with a drain port 10, and the top of the column 21 is provided with a vent port 7. When it is necessary to discharge the original eluent retained on the upper surface of the activated carbon column from the drain port 10, the vent port 7 can be opened to connect the vent port 7 with the drain port 10 to form a channel, which is conducive to the discharge of the original eluent retained on the upper surface of the activated carbon column during the liquid replacement elution, so as to facilitate the replacement of the No. 2 eluent for continued elution.
[0039] The column bottom 23 includes a discharge bottom cover 1. A sieve plate 2 with a diameter of 1200 mm is provided on the upper surface of the discharge bottom cover 1. Filter paper can be laid on the sieve plate 2 to prevent activated carbon from leaking out. An eluent outlet 13 is provided at the bottom end of the discharge bottom cover 1. During the elution process, the eluent flows out from the eluent outlet 13. A flow meter is provided on the eluent outlet 13. The flow meter can display the instantaneous flow rate and the total flow rate, which is convenient for adjusting the flow rate. At the same time, it is convenient to stop the operation when the total flow rate reaches the predetermined elution endpoint.
[0040] In this embodiment, a suspension arm 24 is fixedly installed on the top of the column 21, and a bottom cover cylinder 6 is hinged to the outer end of the suspension arm 24. A rotating arm 25 is fixedly installed at the bottom end of the discharge bottom cover 1. The rotating arm 25 is hinged to the end of the output shaft of the bottom cover cylinder 6. An installation arm 26 is fixedly installed on the outer wall of the column 22. The left side of the rotating arm 25 is convex, and the convex part is hinged to the installation arm 26.
[0041] The bottom cover cylinder 6 is used to open and close the discharge bottom cover 1. The output shaft of the bottom cover cylinder 6 extends and retracts, which can drive the rotating arm 25 to rotate relative to the mounting arm 26. The rotating arm 25 drives the discharge bottom cover 1 to rotate relative to the column 22, thereby rotating the discharge bottom cover 1 to the bottom end of the column 22, so that the discharge bottom cover 1 is connected and locked to the bottom end of the column 22.
[0042] In this embodiment, a locking clamp 27 is provided on the top of the discharge bottom cover 1. The locking clamp 27 is used to connect the discharge bottom cover 1 and the bottom end of the column 22. Two locking cylinders 15 are provided on the top side of the discharge bottom cover 1. The locking cylinders 15 are used to adjust the locking clamp 27. The locking clamp 27 is composed of two components, which are connected by the locking cylinders 15. The bottom end of the locking cylinder 15 is hinged to one end of one of the components, and the output shaft of the locking cylinder 15 is hinged to one end of the other component. When the output shafts of the two locking cylinders 15 retract simultaneously, the two components can be brought closer to each other, thereby achieving a sealed connection between the discharge bottom cover 1 and the bottom end of the column 22.
[0043] In this embodiment, the top of the column 21 is also provided with a pressure gauge hole 16 for installing a pressure gauge and a temperature gauge hole 20 for installing a temperature gauge, so that the elution pressure and elution temperature can be monitored by the pressure gauge and the temperature gauge.
[0044] In this embodiment, a first observation hole 14 is provided at the top of the column 21, and a circular transparent glass plate is provided inside the first observation hole 14. The first observation hole 14 is used to observe the situation inside the activated carbon elution column. A second observation hole 18 is provided on the side of the column body 22. The second observation hole 18 is elongated and is used to observe the carbon surface height, eluent height, and the situation inside the column during the elution process.
[0045] In this embodiment, four suspension brackets 17 are evenly fixedly installed on the outer periphery of the column 22 for suspending the device.
[0046] In this embodiment, a manhole 19 is provided at the top of the column top 21, which can be opened when necessary to perform appropriate operations on the activated carbon elution column. A drain outlet 12 is provided at the bottom of the discharge bottom cover 1 to promptly discharge waste liquid or a small amount of leaked activated carbon.
[0047] In this embodiment, the insulation jacket 4 is provided with insulation liquid inlet 11 and insulation liquid outlet 5 on both sides. A fluid temperature control device is connected through the insulation liquid inlet 11 and insulation liquid outlet 5. The fluid temperature control device controls the temperature of the fluid entering the insulation jacket 4, thereby realizing the control of the elution temperature.
[0048] In this embodiment, valves are provided at the feed inlet 9, drain outlet 10, air outlet 7, eluent outlet 13, and sewage outlet 12 for easy adjustment and control.
[0049] In use, first, dissolve the Chinese herbal extract in water, stir evenly, and then place it in the activated carbon adsorption tank. Next, add activated carbon powder for full adsorption. Finally, use a liquid pump to pressurize the activated carbon adsorption liquid from the feed inlet 9 into the stainless steel activated carbon elution column to form an activated carbon column.
[0050] Secondly, the No. 1 eluent is pressurized and pumped into the stainless steel activated carbon eluent column through a delivery pump. A wall effect occurs between the outer edge of the activated carbon column and the inner wall of the column body 22, generating wall flow. The wall flow flows downward until it falls into the anti-wall leakage ring 3 and can no longer flow downward. Instead, it flows from the inner edge of the anti-wall leakage ring 3 into the activated carbon column, thus avoiding the wall flow problem.
[0051] During the elution process, the valve on the feed inlet 9 can be adjusted to control the flow rate of the eluent entering the stainless steel activated carbon elution column, thereby indirectly controlling the flow rate of the eluent flowing out of the eluent outlet 13. Based on the total flow rate recorded by the flow meter, the predetermined elution endpoint can be determined.
[0052] Finally, use eluent #2 for elution, following the same process as with eluent #1, until eluent #2 has been used up.
[0053] The above description is merely a preferred embodiment of this utility model and does not constitute any limitation on this utility model. Any simple modifications, alterations, and equivalent changes made to the above embodiments based on the technical essence of this utility model shall still fall within the protection scope of this utility model.
Claims
1. A stainless steel activated carbon elution column with anti-leakage function, characterized in that, It includes the column top (21), the column body (22) and the column bottom (23), the feed inlet (9) is fixedly embedded in the center of the top end of the column top (21), the feed inlet (9) is fixedly connected with the spray ball (8) in the column top (21), a plurality of wall leakage prevention rings (3) are sequentially and spacedly installed on the inner wall of the column body (22) from bottom to top, the wall leakage prevention ring (3) is arranged obliquely, the included angle between the section of the wall leakage prevention ring (3) and the inner wall of the column body (22) is 30°-85°, the column body (22) is provided with the heat preservation sleeve (4), the column body (22) is further provided with the liquid discharge port (10) on the side wall, the column top (21) is provided with the emptying port (7) on the top end, the column bottom (23) comprises the discharge bottom cover (1), the discharge bottom cover (1) is provided with the sieve plate (2) on the upper surface, the discharge bottom cover (1) is provided with the eluent outlet (13) at the bottom end, and the eluent outlet (13) is provided with the flow meter.
2. The stainless steel activated carbon elution column with wall leakage prevention function according to claim 1, characterized in that, The column top (21) is fixedly installed with the suspension arm (24) on the top end, the bottom cover air cylinder (6) is hingedly connected to the outer end of the suspension arm (24), the discharge bottom cover (1) is fixedly installed with the rotating arm (25) at the bottom end, the rotating arm (25) is hingedly connected to the output shaft end of the bottom cover air cylinder (6), and the mounting arm (26) is fixedly installed on the outer wall of the column body (22).
3. The stainless steel activated carbon elution column with wall leakage prevention function according to claim 2, characterized in that, The discharge bottom cover (1) is provided with the locking clamp (27) on the top, the locking clamp (27) is used for connecting the discharge bottom cover (1) and the bottom end of the column body (22), and the discharge bottom cover (1) is provided with the locking air cylinder (15) on the top side end, the locking air cylinder (15) is used for adjusting the locking clamp (27).
4. The stainless steel activated carbon elution column with wall leakage prevention function according to claim 1, characterized in that, The column top (21) is further provided with the pressure gauge hole (16) for installing the pressure gauge and the temperature gauge hole (20) for installing the temperature gauge on the top end.
5. The stainless steel activated carbon elution column with wall leakage prevention function according to claim 1, characterized in that, The column top (21) is provided with the first observation hole (14) on the top end, the column body (22) is provided with the second observation hole (18) on the side end, the second observation hole (18) is in a strip shape, and the first observation hole (14) and the second observation hole (18) are provided with circular transparent glass pieces.
6. The stainless steel activated carbon elution column with wall leakage prevention function according to claim 1, characterized in that, Four suspension racks (17) are fixedly installed on the outer periphery of the column body (22) uniformly.
7. The stainless steel activated carbon elution column with wall leakage prevention function according to claim 1, characterized in that, The column top (21) is provided with the manhole (19) on the top end, and the discharge bottom cover (1) is provided with the pollution discharge port (12) at the bottom end.
8. The stainless steel activated carbon elution column with wall leakage prevention function according to claim 1, characterized in that, The heat preservation sleeve (4) is provided with the heat preservation liquid inlet (11) and the heat preservation liquid outlet (5) on both sides.
9. The stainless steel activated carbon elution column with wall leakage prevention function according to claim 1, characterized in that, The included angle between the section of the wall leakage prevention ring (3) and the inner wall of the column body (22) is 75°.