Grease trace metal continuous adsorption tower with multistage honeycomb ceramic carrier

Abstract

The invention relates to the technical field of grease filtration, in particular to a grease trace metal continuous adsorption tower with multistage honeycomb ceramic carriers, which comprises a tower body, a plurality of honeycomb ceramic carriers, a feed pipe and a discharge pipe, the honeycomb ceramic carriers, the feed pipe and the discharge pipe are arranged in the tower body and sequentially connected, and an adsorbent is arranged in each honeycomb ceramic carrier. The feeding pipe and the discharging pipe are arranged on the side wall and the top of the tower body respectively, the pressure conversion assembly is arranged on the tower body and connected with the discharging pipe, the driving assembly is arranged in the tower body, and the blades are arranged on the driving assembly. When the bottom pressure of the tower body is increased, the pressure conversion assembly moves leftwards and pulls down the driving assembly. Through arrangement of the pressure swivel assembly, the driving assembly, the blades and the plugging assembly, the service life of the adsorption tower can be prolonged by utilizing pressure and rotational flow generated in the filtering process, so that the maintenance manpower and material resource cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of oil filtration, and particularly to a continuous adsorption tower for trace metals in oil with a multi-stage honeycomb ceramic carrier. Background Art

[0002] Grain and oil refers to the general term for grains, beans and other grains, oilseeds, and their processed finished products and semi-finished products, which is the general term for the main foods of humans. With industrial emissions and the use of pesticides and fertilizers, the degree of soil pollution has deepened, resulting in an increase in the accumulation of heavy metal ions in the soil, and ultimately being absorbed by oil plants.

[0003] When consuming grain and oil containing heavy metal ions, the heavy metal ions will accumulate in the human body, thus causing various human diseases. Therefore, during the production process of grain and oil, it is necessary to filter out the mixed heavy metal ions to ensure human health. Currently, in oil factories, the pressed vegetable oil is mostly filtered to remove heavy metal ions in the oil. During filtration, the pretreated grain and oil are transported from the feed pipe of the adsorption tower into the adsorption tower, flow through the adsorbent in the adsorption tower, and finally discharge from the discharge pipe, thereby completing the adsorption and filtration of trace heavy metal ions in the grain and oil. However, after a period of filtration operation, the adsorbent will become blocked, and it is necessary to shut down the equipment for cleaning or replacement, which cannot ensure the continuous progress of the filtration operation. In response to the above problems, there are already good solutions in the prior art. For example, a purification system and purification method for waste oil with the patent number CN114574287A, by setting two filters in front of the adsorption tower and alternately using the two filters, achieves the purpose of cleaning one of the filters without stopping the filtration operation, thereby ensuring continuous operation. However, there are still the following defects: The grain and oil first flow through the filter for filtration before entering the interior of the adsorption tower to remove heavy metal ions in the grain and oil. When the bottom of the filter becomes blocked after being used for a period of time, although the normal filtration operation of the grain and oil can be ensured by replacing the filter, due to the continuous operation of the adsorption tower, the filter has a short service life and needs to be frequently cleaned or the entire filter needs to be replaced, resulting in a relatively high single filtration cost.

[0004] Therefore, in order to solve the above problems, a continuous adsorption tower for trace metals in oil with a multi-stage honeycomb ceramic carrier is proposed. Summary of the Invention

[0005] The object of the present invention is to provide a continuous adsorption tower for trace metals in grease with a multi-stage honeycomb ceramic carrier, which solves the problem that the service life of the filter is limited, and the filter element needs to be frequently cleaned or replaced, seriously increasing the labor and material costs. By setting a pressure conversion ring assembly, a drive assembly, blades and a plugging assembly, when the pressure at the bottom of the adsorbent increases due to blockage, the angle of the blades can be automatically adjusted, so that the blades rotate when impacted by the grease and oil, and under the action of the centrifugal force generated during rotation, the blocked impurities are transported to the edge position inside the tower body, prolonging the service life of the adsorbent. When the internal pressure of the tower body increases to a limit value, the flow path of the grease and oil is automatically adjusted and the filtered impurities are blocked, prolonging the service life of the entire adsorption tower again while ensuring the filtration effect, and preventing the filtered impurities from affecting the normal operation of the adsorption tower, thereby reducing the maintenance labor and material costs.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A continuous adsorption tower for trace metals in grease with a multi-stage honeycomb ceramic carrier, comprising a tower body and a plurality of honeycomb ceramic carriers, a feed pipe and a discharge pipe which are sequentially connected inside the tower body. An adsorbent is provided inside each honeycomb ceramic carrier. The feed pipe and the discharge pipe are respectively arranged on the side wall and the top of the tower body. It further includes a pressure conversion assembly, a drive assembly, blades, a sealing plate and a plugging assembly. The pressure conversion assembly is arranged on the tower body and connected to the discharge pipe. The drive assembly is arranged inside the tower body. When the pressure at the bottom of the tower body increases, the pressure conversion assembly moves leftward and pulls down the drive assembly. The blades and the sealing plate are both arranged on the drive assembly. The plugging assembly is arranged on the drive assembly. When the pressure increases to a limit value, the drive assembly drives the blades to flip and drives the sealing plate to move downward.

[0008] Preferably, the pressure conversion assembly includes a first sleeve, a piston, a spring, an ultrasonic rangefinder, a diversion pipe and a second sleeve. The first sleeve is arranged on the tower body. The piston is arranged inside the first sleeve. The spring is arranged between the first sleeve and the piston. A through hole one is opened at the end of the first sleeve. The ultrasonic rangefinder is arranged outside the first sleeve and its output end is coaxially arranged with the through hole one. The ultrasonic rangefinder can be installed and fixed by a conventional mounting bracket. Two diversion pipes are respectively arranged between the tower body and the discharge pipe and between the tower body and the first sleeve. The second sleeve is arranged at the bottom of the uppermost honeycomb ceramic carrier. Solenoid valves are arranged on both the diversion pipe and the second sleeve. Among them, the conduction states of the solenoid valves on the two diversion pipes are opposite, and the conduction state of the solenoid valve on the second sleeve is the same as that of the solenoid valve on the lower diversion pipe. All three solenoid valves can be controlled by a controller.

[0009] By adopting the above solution, during the process that the adsorbent in the honeycomb ceramic carrier installed at the bottommost part is blocked and the internal pressure of the tower body increases, the pressure is utilized to squeeze the piston to move leftward inside the first sleeve. When the ultrasonic rangefinder detects that the piston has moved to a specified distance, it can send a control signal to the controller to adjust the conduction states of the three solenoid valves (the original state is that the solenoid valve on the upper diversion pipe is conducting and the solenoid valve on the lower diversion pipe is closed. At this time, after the grain and oil enter the tower body, they can be filtered by the adsorbent in the three honeycomb ceramic carriers installed below and then enter the discharge pipe through the upper diversion pipe and be discharged). After the adsorbent in the honeycomb ceramic carrier installed at the bottommost part is blocked, the adsorbent in the three honeycomb ceramic carriers installed above is used to continue the filtering operation, thereby prolonging the service life of the adsorption tower.

[0010] Preferably, the driving assembly includes a fixing frame, a hollow column, a first connecting rod, a hinged rod, a second connecting rod, a rotating rod, a fixing block, a rack and a gear. The fixing frame is arranged inside the tower body, the hollow column is arranged inside the fixing frame, the first connecting rod penetrates through the hollow column, the hinged rod is arranged at the lower end of the first connecting rod, the second connecting rod is arranged on the piston and connected to the lower end of the hinged rod, the rotating rod penetrates through the hollow column and is connected to the blade, the fixing block is arranged on the first connecting rod, the rack is arranged on the fixing block, and the gear is arranged on the rotating rod and meshes with the rack.

[0011] By adopting the above solution, during the process that the adsorbent in the honeycomb ceramic carrier installed at the bottommost part is blocked and the internal pressure of the tower body increases, the angle of the blade can be adjusted, so that the blade gradually turns from a horizontal state to a vertical state. Furthermore, during the process that the grain and oil enter the tower body through the feed pipe, the blade can be driven to rotate, and during the rotation of the blade, the swirling effect of the grain and oil inside the tower body can be increased. Thus, the centrifugal force generated by the swirl can be utilized to make the impurities gathered inside the third sleeve diffuse around, reducing the impurities blocking the bottom surface of the honeycomb ceramic carrier at the bottommost part, thereby prolonging the service life of the adsorbent in the honeycomb ceramic carrier installed at the bottommost part, that is, prolonging the service life of the adsorption tower.

[0012] Preferably, the blocking assembly includes a third sleeve and a conical pipe. The third sleeve is arranged inside the fixing frame and its upper end is in contact with the honeycomb ceramic carrier at the bottommost part. A second through hole is opened at the bottom of the third sleeve. The conical pipe is arranged upside down inside the third sleeve and a diversion groove is opened on its inner wall. The first connecting rod penetrates through the second through hole, and a sealing plate is arranged at the upper end of the first connecting rod.

[0013] By adopting the above scheme, the sealing plate can be driven to seal the lower end of the conical tube when the connecting rod moves down. When the guide tube below is turned on, the impurities filtered by the adsorbent installed in the honeycomb ceramic carrier at the bottom cannot pass through the through hole 2, thereby filtering the unfiltered grain and oil while avoiding interference from the filtered impurities.

[0014] Preferably, the feed pipe is arranged along the tangent direction of the inner wall of the tower body.

[0015] By adopting the above scheme, the grain and oil can flow along the circumferential inner wall of the tower body when entering the tower body through the feed pipe, thereby generating a swirl effect, and then the centrifugal force generated by the swirl can be used to push the impurities mixed in the grain and oil to the edge of the tower body, thereby reducing the accumulation of impurities on the bottom surface of the honeycomb ceramic carrier at the bottom, thereby allowing the grain and oil to smoothly pass through the adsorbent in the honeycomb ceramic carrier and extending the service life.

[0016] Preferably, there are a plurality of guide grooves in a circumferential array, and they are arranged in a spiral shape along the rotation direction of the blades.

[0017] By adopting the above scheme, after the grain and oil enter the interior of the conical tube through the second through hole, they can be automatically dispersed by utilizing the shape of the two ends of the conical tube, which are larger at the top and smaller at the bottom. The swirl effect can be further achieved under the action of the guide groove, thereby increasing the swirl effect of the grain and oil when flowing out from the upper port of the conical tube. As a result, under the action of the centrifugal force generated by the swirl, the impurities attached to the bottom of the honeycomb ceramic carrier at the bottom can be pushed to the edge of the tower body, so that the impurities are gathered at the edge, thereby further extending the service life of the adsorbent installed in the honeycomb ceramic carrier at the bottom.

[0018] Preferably, the connecting rod 1 is sequentially sleeved with a bellows 1, a stopper and a bellows 2, the bellows 1 is arranged between the stopper and the hollow column, and the bellows 2 is arranged between the hollow column and the sealing plate.

[0019] By adopting the above scheme, the connection between the connecting rod 1 and the hollow column can be sealed by using bellows 1 and bellows 2, so as to prevent the impurities from getting stuck in the meshing place between the gear and the rack after the grain and oil enter the interior of the hollow column and affecting the normal operation of the gear and the rack. At the same time, it can also ensure that the impurities in the grain and oil entering the tower body can be effectively filtered by the adsorbent in the honeycomb ceramic carrier at the bottom.

[0020] Preferably, the sealing plate is arranged in a truncated cone shape, and is located below the guide groove when the sealing plate contacts the inner wall of the tapered tube.

[0021] By adopting the above solution, when the sealing plate contacts the inner wall of the conical tube, the second through hole can be blocked, preventing grain and oil from entering the interior of the conical tube through the second through hole and also preventing the impurities filtered in the third sleeve from flowing out, thus avoiding the impurities flowing through the lower diversion tube between the two honeycomb ceramic carriers at the bottom and affecting the filtration effect.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0023] 1. By setting the pressure conversion component and the blocking component and arranging the feed pipe tangentially along the inner wall of the tower body, a swirling flow can be formed after the grain and oil enter the interior of the tower body, and the impurities filtered by the adsorbent installed at the bottom of the tower body can be pushed towards the edge position by the centrifugal force generated by the swirling flow. When using the adsorbent in the three honeycomb ceramic materials installed below for filtration, the accumulation of impurities below the adsorbent at the bottom can be reduced, thereby extending the service life of the adsorbent, that is, extending the service life of the adsorption tower; when the filtered impurities increase to block the adsorbent, the flow path of the grain and oil can be automatically adjusted, replacing the traditional filter with multiple honeycomb ceramic carriers and the adsorbents installed inside each honeycomb ceramic carrier, enabling the adsorbents in the three honeycomb ceramic carriers installed above to perform the filtration operation, further extending the service life of the entire adsorption tower while ensuring the filtration effect, thereby reducing the maintenance labor and material costs.

[0024] 2. By setting the blades, when the pressure in the adsorption tower increases and restricts the flow rate of the grain and oil entering the tower body through the feed pipe, the leftward movement of the piston drives the blades to flip, causing the grain and oil to impact the blades during the process of entering the tower body, and increasing the swirling effect of the grain and oil in the tower body by the rotation generated by the impact on the blades, thereby further transporting the impurities blocked below the honeycomb ceramic carrier at the bottom to the edge position inside the tower body, extending the service life of the adsorbent in the honeycomb ceramic carrier at the bottom again while ensuring the filtration effect, that is, extending the service life of the entire adsorption tower again.

[0025] 3. By setting the sealing plate and the conical tube, when the piston moves leftward until the sealing plate contacts the inner wall of the conical tube and controls the three solenoid valves to change the flow path of the grain and oil, the second through hole opened on the third sleeve can be blocked, enabling the impurities filtered by the adsorbent in the honeycomb ceramic carrier at the bottom to remain inside the second sleeve, allowing the adsorbents in the three honeycomb ceramic carriers installed above to perform normal filtration operations, and further extending the service life of the entire adsorption tower while ensuring the filtration effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 Schematic diagram of the partial sectional view of the plane of the present invention;

[0028] Figure 3 Schematic diagram of the partial three - dimensional connection structure of the tower body and the drive assembly of the present invention;

[0029] Figure 4 For the present invention Figure 3 Enlarged view of the partial A part in;

[0030] Figure 5 Schematic diagram of the connection structure between the drive assembly and the plugging assembly of the present invention;

[0031] Figure 6 For the present invention Figure 5 Enlarged view of the partial B part in;

[0032] Figure 7 State diagram of the filtration of three honeycomb ceramic carriers under the lower part inside the tower body of the present invention;

[0033] Figure 8 State diagram of the filtration of three honeycomb ceramic carriers above the upper part inside the tower body of the present invention.

[0034] In the figure: 1. Tower body; 2. Honeycomb ceramic carrier; 21. Adsorbent; 3. Feed pipe; 4. Discharge pipe; 5. Pressure conversion assembly; 51. Sleeve one; 511. Through hole one; 52. Piston; 53. Spring; 54. Ultrasonic rangefinder; 55. Diversion pipe; 56. Sleeve two; 6. Drive assembly; 61. Fixed frame; 62. Hollow column; 63. Connecting rod one; 631. Bellows one; 632. Block; 633. Bellows two; 64. Hinge rod; 65. Connecting rod two; 66. Rotating rod; 67. Fixed block; 68. Rack; 69. Gear; 7. Blade; 8. Sealing plate; 9. Plugging assembly; 91. Sleeve three; 911. Through hole two; 92. Conical pipe; 921. Diversion groove; 10. Solenoid valve. Detailed implementation manners

[0035] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0036] Please refer to Figures 1 to 8 , the present invention provides a multi - stage honeycomb ceramic carrier continuous adsorption tower for trace metals in grease, and the technical solution is as follows:

[0037] Specifically, please refer toFigure 1 and Figure 2 , a continuous adsorption tower for trace metals in grease of a multi-stage honeycomb ceramic carrier, comprising a tower body 1 and a plurality of honeycomb ceramic carriers 2, a feed pipe 3 and a discharge pipe 4 which are sequentially connected inside the tower body 1. An adsorbent 21 is arranged inside each honeycomb ceramic carrier 2. The feed pipe 3 and the discharge pipe 4 are respectively arranged on the side wall and the top of the tower body 1, and the feed pipe 3 is arranged along the tangent direction of the inner wall of the tower body 1.

[0038] Under the above settings, when the grain and oil can enter the inside of the tower body 1 along the tangent direction of the inner wall of the tower body 1, and drive the grain and oil that has gathered in the tower body 1 to rotate during the process of entering the inside of the tower body 1, the impurities in the grain and oil are pushed to the surroundings by the centrifugal force generated by the rotation, ensuring that the adsorbent 21 in the honeycomb ceramic carrier 2 installed at the bottom can normally filter the grain and oil, while reducing the accumulation of impurities at the center, thereby being able to extend the service life of the adsorbent 21, that is, extend the service life of the adsorption tower.

[0039] As an embodiment of the present invention, referring to Figure 1 and Figure 2 , it further includes a pressure conversion component 5, a driving component 6, a blade 7, a sealing plate 8 and a plugging component 9. The pressure conversion component 5 is arranged on the tower body 1 and connected to the discharge pipe 4. The pressure conversion component 5 includes a sleeve one 51, a piston 52, a spring 53, an ultrasonic distance measuring instrument 54, a diversion pipe 55 and a sleeve two 56. The sleeve one 51 is arranged on the tower body 1, the piston 52 is arranged inside the sleeve one 51, the spring 53 is arranged between the sleeve one 51 and the piston 52. A through hole one 511 is opened at the end of the sleeve one 51. The ultrasonic distance measuring instrument 54 is arranged outside the sleeve one 51 and the output end is coaxially arranged with the through hole one 511. Two diversion pipes 55 are respectively arranged between the tower body 1 and the discharge pipe 4 and between the tower body 1 and the sleeve one 51. The sleeve two 56 is arranged at the bottom of the uppermost honeycomb ceramic carrier 2. Solenoid valves 10 are arranged on both the diversion pipe 55 and the sleeve two 56. Among them, the conduction states of the solenoid valves 10 on the two diversion pipes 55 are opposite, and the conduction state of the solenoid valve 10 on the sleeve two 56 is the same as that of the solenoid valve 10 on the lower diversion pipe 55. The three solenoid valves 10 can all be controlled by a controller

[0040] Under the above set conditions, when the adsorption tower is working normally, the adsorbent 21 in the three honeycomb ceramic carriers 2 installed below can be used to filter impurities in grain and oil. When the impurities filtered out by the adsorbent 21 in the honeycomb ceramic carrier 2 installed at the bottom gradually increase and cause the adsorbent 21 to become blocked, as the feed pipe 3 continuously conveys grain and oil into the tower body 1, the pressure inside the tower body 1 will gradually increase. During the process of pressure increase, the grain and oil will squeeze the piston 52 to move leftward inside the sleeve 51. When the ultrasonic rangefinder 54 detects that the piston 52 has moved to a specified position (the specified position will be described in detail later), it sends a signal to the controller. The controller controls the conduction states of the three solenoid valves 10, changes the solenoid valve 10 on the diversion pipe 55 installed above from open to closed, and changes the solenoid valves 10 on the diversion pipe 55 installed below and on the sleeve 52 from closed to open. At this time, the grain and oil inside the tower body 1 can flow through the lower diversion pipe 55 to between the two honeycomb ceramic carriers 2 at the bottom. At this time, the adsorbent 21 in the three honeycomb ceramic carriers 2 installed above can be used to filter impurities in grain and oil, further extending the service life of the adsorption tower.

[0041] As an implementation manner of the present invention, referring to Figure 1 , Figure 2 , Figure 3 and Figure 4 , the driving assembly 6 is arranged inside the tower body 1. The driving assembly 6 includes a fixing frame 61, a hollow column 62, a connecting rod 63, a hinged rod 64, a connecting rod 65, a rotating rod 66, a fixing block 67, a rack 68 and a gear 69. The fixing frame 61 is arranged inside the tower body 1. The hollow column 62 is arranged inside the fixing frame 61. The connecting rod 63 penetrates through the hollow column 62. The hinged rod 64 is arranged at the lower end of the connecting rod 63. The connecting rod 65 is arranged on the piston 52 and is connected to the lower end of the hinged rod 64. The rotating rod 66 penetrates through the hollow column 62 and is connected to the blade 7. The fixing block 67 is arranged on the connecting rod 63. The rack 68 is arranged on the fixing block 67. The gear 69 is arranged on the rotating rod 66 and meshes with the rack 68.

[0042] Under the above set conditions, since the first connecting rod 63 and the second connecting rod 65 are connected by a hinge rod 64, and the second connecting rod 65 is arranged on the piston 52, when the piston 52 moves to the left due to the increased internal pressure of the tower body 1, it can drive the second connecting rod 65 to move to the left. As a result, under the connection action of the hinge rod 64, the first connecting rod 63 is driven to move downward. When the first connecting rod 63 moves downward, it can drive the fixed block 67 to move. When the fixed block 67 moves downward, it can drive the rack 68 to move. Since the rack 68 meshes with the gear 69, and the gear 69 is connected to the rotating shaft, the rack 68 can drive the gear 69 to rotate during the downward movement. Since the gear 69 is connected to the rotating rod 66, and one end of the rotating rod 66 located outside the hollow column 62 is connected to the blade 7, the gear 69 can drive the blade 7 to flip through the rotating rod 66 during the rotation process, so that after the grain and oil enter the tower body 1 through the feed pipe 3, it can drive the blade 7 to rotate with the central axis of the tower body 1 as the rotation axis, thereby increasing the swirling effect of the grain and oil inside the tower body 1. And through the action of the centrifugal force generated by the swirling, the impurities filtered out by the adsorbent 21 in the honeycomb ceramic carrier 2 installed at the bottom are pushed towards the edge position inside the tower body 1, further avoiding the accumulation of impurities on the bottom surface of the honeycomb ceramic carrier 2 at the bottom, that is, further extending the service life of the adsorption tower.

[0043] As an embodiment of the present invention, referring to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , the blade 7 and the sealing plate 8 are both arranged on the driving assembly 6, the blocking assembly 9 is arranged on the driving assembly 6, the blocking assembly 9 includes a third sleeve 91 and a tapered tube 92, the third sleeve 91 is arranged inside the fixed frame 61 and its upper end is in contact with the honeycomb ceramic carrier 2 at the bottom, a second through hole 911 is opened at the bottom of the third sleeve 91, the tapered tube 92 is arranged upside down inside the third sleeve 91 and a flow guiding groove 921 is opened on its inner wall, a plurality of the flow guiding grooves 921 are arranged in a circumferential array and are spirally arranged along the rotation direction of the blade 7, the first connecting rod 63 passes through the second through hole 911, the sealing plate 8 is arranged at the upper end of the first connecting rod 63, the sealing plate 8 is arranged in a frustum shape, and when the sealing plate 8 contacts the inner wall of the tapered tube 92, it is located below the flow guiding groove 921.

[0044] Under the above set conditions, since the grain and oil are in a swirling state after entering the interior of the tower body 1 through the feed pipe 3, and under the connection effect of the through hole two 911, the grain and oil inside the sleeve three 91 are also in a swirling state. Since the two ends of the conical pipe 92 have a shape with a larger upper end and a smaller lower end, the grain and oil will spread around after entering the interior of the conical pipe 92 through the through hole two 911. At the same time, through the spiral setting of the diversion groove 921, the swirling effect of the grain and oil can be further increased. When the connecting rod one 63 moves downward and drives the sealing plate 8 to move downward and fit with the inner wall of the conical pipe 92 (at this time, the position of the piston 52 detected by the ultrasonic distance measuring instrument 54 is the specified position, and this specified position is also the limit value of the internal pressure of the tower body 1), the filtered impurities will remain between the sleeve two 56 and the conical pipe 92 and cannot fall downward through the through hole two 911, avoiding the influence of the already filtered impurities when using the adsorbent 21 in the three honeycomb ceramic carriers 2 installed above for filtering work.

[0045] As an implementation manner of the present invention, referring to Figure 5 and Figure 6 a corrugated pipe one 631, a stop block 632 and a corrugated pipe two 633 are sequentially sleeved on the connecting rod one 63. The corrugated pipe one 631 is arranged between the stop block 632 and the hollow column 62, and the corrugated pipe two 633 is arranged between the hollow column 62 and the sealing plate 8.

[0046] Under the above set conditions, the corrugated pipe one 631 and the corrugated pipe two 633 can block the connection between the connecting rod one 63 and the hollow column 62. Since there are impurities in the grain and oil entering the interior of the tower body 1 through the feed pipe 3, it can avoid the grain and oil from contacting the gear 69 and the rack 68, and further avoid the impurities getting stuck in the meshing position of the gear 69 and the rack 68 after long-term use and affecting the normal operation of the gear 69 and the rack 68.

[0047] Working principle: In order to extend the service life of the adsorbent 21 installed at the bottom of the adsorption tower, referring to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6 by setting the conical pipe 92 and the diversion groove 921 opened on the inner wall of the conical pipe 92, swirling can be carried out before the grain and oil contact the adsorbent 21 installed at the bottom, and the centrifugal force generated by the swirling is used to transport the filtered impurities to the edge position inside the tower body 1, thereby reducing the accumulation of impurities at the bottom of the adsorbent 21 and achieving the effect of extending the service life of the adsorbent 21; in order to extend the service life of the entire adsorption tower, referring to Figure 1 , Figure 2 and Figure 8, by setting the piston 52 and the sealing plate 8, when the adsorbent 21 at the bottom is blocked by impurities and the internal pressure of the tower body 1 increases, the flow direction of the grain and oil can be adjusted, and the adsorbent 21 in the three honeycomb ceramic carriers 2 installed above is used for filtration. At the same time, it can avoid being affected by the impurities that have been filtered out, achieving the effect of extending the service life of the entire adsorption tower.

[0048] Specifically:

[0049] The grain and oil is conveyed into the tower body 1 along the tangential direction of the inner wall of the tower body 1 through the feed pipe 3. At this time, the solenoid valve 10 on the flow guide pipe 55 installed above is in the open state, while the solenoid valves 10 on the flow guide pipe 55 and the sleeve two 56 installed below are in the closed state. After being sequentially filtered by the adsorbent 21 in the three honeycomb ceramic carriers 2 installed below, the grain and oil can flow into the inner part of the discharge pipe 4 through the flow guide pipe 55 above and finally be discharged from the discharge pipe 4; moreover, after entering the tower body 1, the grain and oil can utilize the arc surface of the inner wall of the tower body 1 and the flow guide groove 921 on the inner wall of the conical pipe 92 to generate a swirl. The action of the centrifugal force generated by the swirl can transport the impurities filtered at the bottom below the honeycomb ceramic carrier 2 to the edge position inside the tower body 1, reducing the accumulation of impurities at the center position of the bottom of the honeycomb ceramic carrier 2, thereby extending the service life of the adsorbent 21 in the honeycomb ceramic carrier 2;

[0050] When the impurities filtered out increase and the adsorbent 21 at the bottom gradually becomes blocked, the pressure below the honeycomb ceramic carrier 2 at the bottom inside the tower body 1 will increase. Under the action of the pressure, the piston 52 can be squeezed to move leftward. During the process of the piston 52 moving leftward, the spring 53 is squeezed and the connecting rod two 65 is driven to move leftward. During the process of the connecting rod two 65 moving leftward, the lower end of the articulated rod 64 can be driven to move leftward. During the process of the lower end of the connecting rod two 65 moving leftward, the connecting rod one 63 can be driven to move downward. During the process of the connecting rod one 63 moving downward, the fixed block 67 is driven to move downward. Since the fixed block 67 is provided with a rack 68, the rack 68 will move downward following the fixed block 67. Since the rack 68 meshes with a gear 69, and the gear 69 is connected to the blade 7 through a rotating rod 66, during the process of the rack 68 moving downward, the gear 69 will be driven to drive the blade 7 to flip, so that it can rotate during the process of the grain and oil entering the tower body 1 through the feed pipe 3 and increase the swirl effect of the grain and oil, further extending the service life of the adsorbent 21 in the honeycomb ceramic carrier 2 at the bottom, that is, extending the service life of the adsorption tower;

[0051] Meanwhile, since the sealing plate 8 is arranged at the upper end of the first connecting rod 63, the sealing plate 8 can be driven to move downward during the downward movement of the first connecting rod 63. When the ultrasonic rangefinder 54 detects that the piston 52 moves to the specified position (i.e., the sealing plate 8 fits against the inner wall of the conical tube 92), it sends a signal to the controller. The controller controls the solenoid valve 10 on the upper diversion pipe 55 to close, and opens the solenoid valve 10 on the lower diversion pipe 55 and the second sleeve 56. At this time, the sealing plate 8 completes the blocking of the second through hole 911, and the grain and oil can re-enter the interior of the tower body 1 through the action of the lower diversion pipe 55, and can be filtered by the adsorbent 21 in the three honeycomb ceramic carriers 2 installed above. While ensuring the filtering effect, the service life of the entire adsorption tower can be extended again.

[0052] When the filtering effect of the entire adsorption tower drops to the point where the adsorption tower needs to be replaced, the supply of grain and oil to the interior of the adsorption tower is stopped. At this time, the spring 53 drives the piston 52 to reset by its own elastic force, ensuring that the adsorption tower can be reused after being cleaned.

[0053] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A continuous adsorption tower for trace metals in grease of a multi-stage honeycomb ceramic carrier, comprising a tower body (1) and a plurality of honeycomb ceramic carriers (2), a feed pipe (3) and a discharge pipe (4) that are sequentially connected inside the tower body (1). An adsorbent (21) is provided inside each of the honeycomb ceramic carriers (2), and it is characterized in that: It also includes a pressure conversion component (5), a driving component (6), a blade (7), a sealing plate (8) and a plugging component (9). The pressure conversion component (5) is arranged on the tower body (1) and connected to the discharge pipe (4). The driving component (6) is arranged inside the tower body (1). When the pressure at the bottom of the tower body (1) increases, the pressure conversion component (5) moves leftward and pulls down the driving component (6). The blade (7) and the sealing plate (8) are both arranged on the driving component (6), and the plugging component (9) is arranged on the driving component (6). When the pressure increases to a specified value, the driving component (6) drives the blade (7) to flip and drives the sealing plate (8) to move downward.

2. The continuous adsorption tower for trace metals in grease of a multi-stage honeycomb ceramic carrier according to claim 1, characterized in that: The pressure conversion component (5) includes a first sleeve (51), a piston (52), a spring (53), an ultrasonic rangefinder (54), a diversion pipe (55) and a second sleeve (56). The first sleeve (51) is arranged on the tower body (1), the piston (52) is arranged inside the first sleeve (51), the spring (53) is arranged between the first sleeve (51) and the piston (52), the ultrasonic rangefinder (54) is arranged outside the first sleeve (51). Two diversion pipes (55) are respectively arranged between the tower body (1) and the discharge pipe (4) and between the tower body (1) and the first sleeve (51). The second sleeve (56) is arranged at the bottom of the uppermost honeycomb ceramic carrier (2). Solenoid valves (10) are arranged on both the diversion pipe (55) and the second sleeve (56).

3. The continuous adsorption tower for trace metals in grease of a multi-stage honeycomb ceramic carrier according to claim 2, characterized in that: The driving component (6) includes a fixing frame (61), a hollow column (62), a first connecting rod (63), a hinged rod (64), a second connecting rod (65), a rotating rod (66), a fixing block (67), a rack (68) and a gear (69). The fixing frame (61) is arranged inside the tower body (1), the hollow column (62) is arranged inside the fixing frame (61), the first connecting rod (63) penetrates through the hollow column (62), the hinged rod (64) is arranged at the lower end of the first connecting rod (63), the second connecting rod (65) is arranged on the piston (52) and connected to the lower end of the hinged rod (64). The rotating rod (66) penetrates through the hollow column (62) and is connected to the blade (7). The fixing block (67) is arranged on the first connecting rod (63), the rack (68) is arranged on the fixing block (67), and the gear (69) is arranged on the rotating rod (66) and meshes with the rack (68).

4. The continuous adsorption tower for trace metals in grease of a multi-stage honeycomb ceramic carrier according to claim 3, characterized in that: The plugging component (9) includes a third sleeve (91) and a tapered pipe (92). The third sleeve (91) is arranged inside the fixing frame (61) and its upper end is in contact with the lowermost honeycomb ceramic carrier (2). A second through hole (911) is opened at the bottom of the third sleeve (91). The tapered pipe (92) is arranged upside down inside the third sleeve (91) and a diversion groove (921) is arranged on its inner wall. The first connecting rod (63) penetrates through the second through hole (911), and the sealing plate (8) is arranged at the upper end of the first connecting rod (63).

5. The continuous adsorption tower for trace metals in grease of a multi-stage honeycomb ceramic carrier according to claim 2, characterized in that: The feed pipe (3) is arranged along the tangential direction of the inner wall of the tower body (1).

6. The continuous adsorption tower for trace metals in grease of a multi-stage honeycomb ceramic carrier according to claim 4, wherein: A plurality of the diversion channels (921) are arranged in a circumferential array and are spirally arranged along the rotation direction of the blade (7).

7. The continuous adsorption tower for trace metals in grease of a multi-stage honeycomb ceramic carrier according to claim 4, characterized in that: A first corrugated pipe (631), a stopper (632) and a second corrugated pipe (633) are sequentially sleeved on the first connecting rod (63). The first corrugated pipe (631) is arranged between the stopper (632) and the hollow column (62), and the second corrugated pipe (633) is arranged between the hollow column (62) and the sealing plate (8).

8. A continuous adsorption tower for trace metals in grease of a multi-stage honeycomb ceramic carrier according to claim 6, characterized in that: The sealing plate (8) is arranged in a frustum shape and is located below the diversion channel (921) when it contacts the inner wall of the conical pipe (92).

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