Extraction and impurity removal device

Abstract

The invention relates to the technical field of extraction and separation equipment, and particularly discloses an extraction and impurity removal device which comprises a frame body, a shell, a mixing barrel and a driving structure for driving the mixing barrel to rotate, a first liquid inlet and a second liquid inlet are formed in the lower end of the shell, and a first liquid outlet and a second liquid outlet are formed in the upper end of the shell; the lower end of the mixing cylinder is provided with a liquid inlet channel simultaneously communicated with the liquid inlet I and the liquid inlet II, the upper end of the mixing cylinder is provided with a liquid separation tank I communicated with the liquid outlet I and a liquid separation tank II communicated with the liquid outlet II, and the liquid inlet end of the liquid separation tank is positioned on the outer side of the liquid inlet end of the liquid separation tank; a cleaning mechanism is arranged in the mixing cylinder and comprises a guide shaft, a cleaning part and an adjusting assembly, the guide shaft and the mixing cylinder are coaxially arranged, the lower end of the guide cylinder is fixed to the shell, the cleaning part is in threaded connection with the guide shaft, and the adjusting assembly is used for adjusting the relative rotation state of the cleaning part and the guide shaft; according to the extraction and impurity removal device, the cleaning effect on the mixing cylinder is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of extraction and separation equipment, and particularly relates to an extraction and impurity removal device. Background Art

[0002] In the process of drug processing, extraction and impurity removal is a commonly used separation and purification technique, aiming to remove unwanted impurities and improve the purity of the target product. This process is based on the solubility difference of different substances in two immiscible solvents for separation. In related technologies, extraction and impurity removal operations are mostly carried out through extraction equipment. When the extraction equipment works, it is necessary to fully mix the liquid. To avoid affecting subsequent extraction operations, it is also necessary to clean the extraction equipment after the extraction is completed.

[0003] The patent document with the authorization announcement number CN210754050U discloses a self-cleaning rotating mechanism for a biological component extraction device, which includes: a rotating shaft, a rotary joint, a gearbox and a nozzle. The rotating shaft is vertically arranged on the rotary joint. A core hole communicating with the rotary joint is concentrically arranged in the rotating shaft. A water inlet pipe is connected to one side of the rotary joint. The nozzle respectively includes a pipe body, a screw, a spring and a core column. A first round hole communicating with the core hole is arranged at the inner end of the pipe body. A second round hole concentrically connected to the first round hole is arranged at the outer end of the pipe body. The core column, the spring and the screw are axially arranged outward in the second round hole in sequence. A water spraying hole pointing to the core column is arranged on the outer circle of the pipe body. After the extraction work is completed, the self-cleaning rotating mechanism of this patent document opens the valve to make tap water or cleaning solution enter the core hole, and uses the water pressure to drive the core column to resist the elastic force of the spring, so that the spring is compressed and adapts to the outward movement of the core column, thereby opening the water spraying hole. During the cleaning process, in cooperation with the rotation of the rotating shaft, comprehensive spraying and flushing of the extraction equipment are realized.

[0004] The self-cleaning rotating mechanism of the above patent document cleans the extraction equipment by means of spraying. In the actual production process, the viscosity of some solvents in the extraction operation is relatively large. After the extraction work is completed, it is difficult to ensure the cleaning effect of the inner wall of the extraction equipment only by means of spraying and flushing. The residual impurities on the inner wall of the extraction equipment will affect the quality of subsequent extraction operations. Summary of the Invention

[0005] The present invention provides an extraction and impurity removal device, aiming to solve the problems that in the related extraction and impurity removal device, after the extraction work is completed, affected by the solvent viscosity, it is difficult to clean the inner wall of the extraction equipment and the cleaning effect is not ideal.

[0006] An impurity removal device for extraction according to the present invention includes a frame body, a housing fixedly provided on the frame body, and a mixing cylinder provided inside the housing. The mixing cylinder is connected with a driving structure for driving the mixing cylinder to rotate. A first liquid inlet and a second liquid inlet are provided at the lower end of the housing, and a first liquid outlet and a second liquid outlet are provided at the upper end of the housing. A liquid inlet channel that simultaneously communicates with the first liquid inlet and the second liquid inlet is provided at the lower end of the mixing cylinder. A first liquid separation tank communicating with the first liquid outlet and a second liquid separation tank communicating with the second liquid outlet are provided at the upper end of the mixing cylinder. Taking the side facing the axis of the mixing cylinder as the inner side, the liquid inlet end of the first liquid separation tank is located outside the liquid inlet end of the second liquid separation tank. A cleaning mechanism is provided inside the mixing cylinder. The cleaning mechanism includes a guiding shaft, a cleaning member, and an adjusting component. The guiding shaft is coaxially arranged with the mixing cylinder. The lower end of the guiding shaft is fixed to the housing. The cleaning member is threadedly connected with the guiding shaft. The adjusting component is used to adjust the relative rotation state of the cleaning member and the guiding shaft.

[0007] The beneficial effects are as follows: The cleaning effect on the inner wall of the mixing cylinder is improved, and at the same time, it is avoided that the cleaning mechanism affects the separation of the two solvents during the extraction work. The solvents added from the first liquid inlet and the second liquid inlet enter the mixing cylinder from bottom to top through the liquid inlet channel. When the driving structure drives the mixing cylinder to rotate, the two solvents are mixed and separated under the action of centrifugal force. The solution with a larger density is close to the inner wall of the mixing cylinder, and the solution with a smaller density is close to the axis of the mixing cylinder. As the solvents continue to be introduced, the liquid level in the mixing cylinder rises. The solvents with different densities flow out through the first liquid separation tank and the second liquid separation tank respectively, and are further collected by the first liquid outlet and the second liquid outlet, realizing continuous extraction operation of the solvents and improving the extraction efficiency. The adjusting component is used to adjust the relative rotation state of the guiding shaft and the mixing cylinder. During the extraction work, the cleaning member is fixed relative to the guiding shaft to avoid the cleaning member interfering with the separation of the two solvents. During the cleaning work, the adjusting component adjusts the cleaning member to rotate relative to the mixing cylinder, and the cleaning member scrapes the residual solvents on the inner wall of the mixing cylinder to improve the cleaning effect of the mixing cylinder.

[0008] Preferably, the adjusting component includes an adjusting member, a guiding member, and a transmission structure. A connecting seat is fixed at the upper end of the guiding shaft. The connecting seat is rotationally matched with the mixing cylinder. The adjusting member is rotationally matched with the connecting seat. The mixing cylinder is connected with the adjusting member through the transmission structure. The adjusting member rotates in the opposite direction relative to the mixing cylinder. A limiting groove is provided inside the adjusting member. The upper end of the guiding member is movably inserted and matched with the limiting groove. When the guiding member is inserted into the limiting groove, it is fixed relative to the adjusting member.

[0009] The beneficial effects are as follows: it is convenient to flexibly adjust the relative rotation state of the cleaning part and the guide shaft according to different working states. When the guide part moves downward relative to the adjusting part, under the plugging and limiting action of the limiting groove and the guide part, the guide part rotates synchronously with the adjusting part. When the guide part moves upward relative to the adjusting part, the guide part is separated from the limiting groove, and the circumferential limitation between the guide part and the adjusting part is released, and the guide part does not rotate with the adjusting part.

[0010] Preferably, the upper end of the guide part is provided with a part extending between the guide shaft and the adjusting part, and a guiding portion is fixed on the guide part, and the guiding portion is movably inserted into the limiting groove.

[0011] Preferably, there are two limiting grooves and two guiding portions. The two guiding portions are movably opposite to the two limiting grooves, and the two limiting grooves are connected by an adjusting portion, and the height of the adjusting portion increases along the direction away from the limiting groove.

[0012] The beneficial effects are as follows: it is ensured that when the guide part moves downward, the guiding portion smoothly falls into the limiting groove of the adjusting part. After the movable plate is separated from the guide part, the guide part moves downward under the action of gravity, the adjusting part continuously rotates under the action of the transmission structure, the guiding portion fits with the adjusting portion, and moves downward along the inclined direction of the adjusting portion until the guiding portion enters the limiting groove.

[0013] Preferably, a guiding groove is provided in the vertical direction of the liquid inlet channel, a guiding rod is fixed in the guiding groove, both ends of the guiding rod extend to the upper and lower sides of the liquid inlet channel respectively, a movable plate slidably matched with the guiding rod is arranged in the liquid inlet channel, the movable plate is elastically connected to the guiding rod on its upper and lower sides, a movable portion is rotatably connected to the middle of the movable plate, the movable portion is movably abutted against the lower end of the guide part, and the movable portion is relatively fixed when abutting against the guide part.

[0014] The beneficial effects are as follows: it is convenient to flexibly adjust the relative fixed state of the guide part and the adjusting part according to the working state of the equipment. When performing extraction work, the solvent enters the mixing cylinder from the liquid inlet channel and jacks up the movable plate to move upward, thereby pushing the guide part upward to release the limitation between the guide part and the adjusting part. When performing cleaning work, the cleaning liquid enters the mixing cylinder from the first liquid separation tank and the second liquid separation tank, the movable plate moves downward along the liquid inlet channel, the guide part and the adjusting part maintain a limiting state, and the guide part rotates with the adjusting part.

[0015] Preferably, the movable portion is slidably matched with the guide shaft in the vertical direction, and the end faces of the movable portion opposite to the guide part are both tooth-shaped surfaces.

[0016] Preferably, the transmission structure includes a ring gear, a gear, and a tooth portion. The ring gear is fixed to the top of the mixing cylinder and is coaxially arranged with the mixing cylinder. The gear is rotatably engaged with the connecting seat. The tooth portion is provided on the outer peripheral side of the adjusting member. The gear is simultaneously engaged with the ring gear and the tooth portion.

[0017] The beneficial effect is as follows: to ensure the smooth progress of the cleaning work, the ring gear rotates with the mixing cylinder and drives the tooth portion to rotate in the reverse direction under the transmission of the gear, that is, the adjusting member rotates in the reverse direction relative to the mixing cylinder under the action of the transmission structure. When the guiding member and the adjusting member are limited, the cleaning member rotates synchronously with the guiding member and generates relative rotation with the inner wall of the mixing cylinder, so that the cleaning member can smoothly scrape off the residues on the inner wall of the mixing cylinder.

[0018] Preferably, the cleaning member includes a connecting portion and a cleaning portion. The connecting portion is threadedly connected to the guiding shaft. The cleaning portion is elastically slidably connected to the connecting portion in the horizontal direction. The cleaning portion is also connected to the connecting portion through a connecting rod structure, and the connecting rod structure is used to limit the relative position between the cleaning portion and the connecting portion.

[0019] Preferably, the connecting rod structure includes a first connecting rod, a second connecting rod, and a push rod. One end of the first connecting rod is hinged to the connecting portion, the other end of the first connecting rod is hinged to one end of the second connecting rod, the other end of the second connecting rod is hinged to the cleaning portion, a pushing block is provided in the middle of the first connecting rod, the push rod is fixed to the guiding member, and the push rod abuts against the pushing block.

[0020] The beneficial effect is as follows: to avoid scratching between the cleaning member and the inner wall of the mixing cylinder during the extraction process and reduce the wear of the inner wall of the mixing cylinder. During the extraction process, the movable plate pushes the guiding member upward. The push rod on the guiding member pushes the first connecting rod to rotate through the pushing block, and the first connecting rod pulls the cleaning portion to move inward through the second connecting rod, so that the cleaning portion is separated from the inner wall of the mixing cylinder.

[0021] Preferably, the driving structure includes a driving source and a driving shaft. The driving source is installed on the housing, the driving end of the driving source is connected to the driving shaft, and the driving shaft is fixed to the mixing cylinder.

[0022] The beneficial effects of the present invention are as follows: it improves the cleaning effect on the inner wall of the mixing cylinder, and at the same time avoids the cleaning mechanism from affecting the separation of the two solvents during the extraction work. The solvents added from the first liquid inlet and the second liquid inlet enter the mixing cylinder from bottom to top through the liquid inlet channel. When the driving structure drives the mixing cylinder to rotate, the two solvents are mixed and separated under the action of centrifugal force. The solution with a larger density is close to the inner wall of the mixing cylinder, and the solution with a smaller density is close to the axis of the mixing cylinder. As the solvents continue to be introduced, the liquid level in the mixing cylinder rises, and the solvents with different densities flow out through the first liquid separation groove and the second liquid separation groove respectively, and are further collected by the first liquid outlet and the second liquid outlet, realizing continuous extraction operation of the solvents and improving the extraction efficiency; the adjustment component is used to adjust the relative rotation state of the guide shaft and the mixing cylinder. During the extraction work, the cleaning part is fixed relative to the guide shaft to avoid the cleaning part from interfering with the separation of the two solvents. During the cleaning work, the adjustment component adjusts the cleaning part to rotate relative to the mixing cylinder, and the cleaning part scrapes the residual solvents on the inner wall of the mixing cylinder to improve the cleaning effect of the mixing cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is the front view of the present invention.

[0024] Figure 2 is the schematic structural diagram of the inside of the mixing cylinder in the cleaning state.

[0025] Figure 3 is Figure 2 the front view of

[0026] Figure 4 is Figure 3 the enlarged view of part A in

[0027] Figure 5 is the schematic diagram of the state of the cleaning part in the extraction state of the present invention.

[0028] Figure 6 is the schematic structural diagram of the connection between the adjusting part and the mixing cylinder through the transmission structure in the present invention.

[0029] Figure 7 is the schematic diagram of the positional relationship between the first liquid separation groove and the second liquid separation groove and the mixing cylinder in the present invention.

[0030] Figure 8 is the schematic structural diagram of the connection between the adjusting part and the guiding part in the present invention.

[0031] Reference Signs: 1. Frame; 11. Driving source; 111. Driving shaft; 2. Housing; 21. First liquid inlet; 22. Second liquid inlet; 23. First liquid outlet; 24. Second liquid outlet; 3. Mixing cylinder; 31. Liquid inlet channel; 311. Guide rod; 312. Movable plate; 313. Movable part; 32. First liquid distribution tank; 33. Second liquid distribution tank; 4. Cleaning part; 401. Connecting part; 402. Cleaning part; 403. First connecting rod; 404. Second connecting rod; 405. Pushing block; 41. Guide shaft; 411. Connecting seat; 42. Guide part; 421. Guiding part; 422. Push rod; 43. Adjusting part; 431. Tooth part; 432. Gear; 433. Tooth ring; 434. Limiting groove; 435. Adjusting part. Detailed implementation mode

[0032] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present invention and should not be construed as a limitation of the present invention.

[0033] As Figures 1 to 3 shown, the extraction and impurity removal device of the present invention includes a frame 1, a housing 2 fixedly arranged on the frame 1, and a mixing cylinder 3 rotatably arranged inside the housing 2. A cleaning mechanism for cleaning the inner wall of the mixing cylinder 3 after the extraction work is provided inside the mixing cylinder 3. A first liquid inlet 21 and a second liquid inlet 22 are arranged at the lower end of the housing 2. The first liquid inlet 21 and the second liquid inlet 22 are respectively used for introducing different solvents. A first liquid outlet 23 and a second liquid outlet 24 are arranged at the upper end of the housing 2. The first liquid outlet 23 and the second liquid outlet 24 are respectively used for the outflow of different solvents. A liquid inlet channel 31 is arranged at the lower end of the mixing cylinder 3. The first liquid inlet 21 and the second liquid inlet 22 are both communicated with the liquid inlet channel 31. A first liquid distribution tank 32 and a second liquid distribution tank 33 are arranged at the upper end of the mixing cylinder 3. The first liquid distribution tank 32 is communicated with the first liquid outlet 23, and the second liquid distribution tank 33 is communicated with the second liquid outlet 24. As Figure 7 shown, taking the side facing the axis of the mixing cylinder 3 as the inner side, the liquid inlet end of the first liquid distribution tank 32 is located outside the liquid inlet end of the second liquid distribution tank 33. To facilitate the smooth discharge of the two solvents, a plurality of first liquid distribution tanks 32 and second liquid distribution tanks 33 are provided. Each first liquid distribution tank 32 is evenly spaced along the circumferential direction of the mixing cylinder 3, and each second liquid distribution tank 33 is also evenly spaced along the circumferential direction of the mixing cylinder 3.

[0034] A driving structure is also arranged on the housing 2, and the driving structure drives the mixing cylinder 3 to rotate around its own axis. The driving structure may include a driving source 11 and a driving shaft 111. The driving source 11 is installed at the upper end of the housing 2. The driving source 11 may be a motor. The driving end of the driving source 11 is connected to the driving shaft 111, and the driving shaft 111 is fixed to the upper end of the mixing cylinder 3.

[0035] When the driving structure works, it drives the mixing cylinder 3 to rotate. There is a certain density difference between the two solvents used for extraction. The solvents inside the mixing cylinder 3 are separated under the action of centrifugal force. The solvent with a larger density will move to the outer area faster. During the separation of the two solvents under the action of centrifugal force, the contact opportunity and area of the two solvents are increased in a short time, and the extraction and separation of impurities in the solvent are also promoted. As the solvent continues to be introduced, the liquid level height in the mixing cylinder 3 gradually increases. The solvent with a larger density enters the liquid outlet 1 23 from the liquid separation tank 1 32, and the solvent with a smaller density enters the liquid outlet 2 24 from the liquid separation tank 2 33. Then, the solvents discharged from the liquid outlet 1 23 and the liquid outlet 2 24 are collected respectively. The extraction and impurity removal device can continuously introduce the solvent during the extraction process and continuously export the separated solvent, realizing continuous extraction operation and effectively improving the extraction efficiency of the solvent.

[0036] As Figures 2 to 6 shown, the cleaning mechanism includes a guide shaft 41, a cleaning member 4, and an adjustment assembly. The guide shaft 41 is coaxially arranged with the mixing cylinder 3. The lower end of the guide shaft 41 is fixed to the housing 2, and the upper end of the guide shaft 41 is rotatably matched with the mixing cylinder 3. A circular plate-shaped connecting seat 411 is fixed to the upper end of the guide shaft 41, and the connecting seat 411 is rotatably matched with the top end of the mixing cylinder 3. The cleaning member 4 is in threaded cooperation with the guide shaft 41, and the adjustment assembly is used to adjust the relative rotation state of the cleaning member 4 and the guide shaft 41.

[0037] The adjustment assembly includes an adjustment member 43, a guide member 42, and a transmission structure. The adjustment member 43 is in a cylindrical shape. The upper end of the adjustment member 43 is rotatably matched with the connecting seat 411, and the adjustment member 43 is coaxially arranged with the guide shaft 41. The mixing cylinder 3 is connected to the guide member 42 through the transmission structure. The transmission structure includes a gear ring 433, a gear 432, and a tooth portion 431. The gear ring 433 is fixed to the top end face of the mixing cylinder 3, and the gear ring 433 is coaxially arranged with the mixing cylinder 3. The gear 432 is rotatably matched with the connecting seat 411, and the tooth portion 431 is arranged on the outer peripheral side of the adjustment member 43. The gear 432 is simultaneously meshed with the gear ring 433 and the tooth portion 431. When the mixing cylinder 3 rotates, the gear ring 433 rotates with the mixing cylinder 3 and drives the gear 432 to rotate. The gear 432 further drives the adjustment member 43 to rotate through the tooth portion 431. The adjustment member 43 rotates in the opposite direction to the mixing cylinder 3 under the action of the transmission structure.

[0038] As Figure 8As shown in the figure, a limiting groove 434 and an adjusting portion 435 are provided inside the adjusting member 43. The upper end of the guiding member 42 is located between the guiding shaft 41 and the adjusting member 43. A guiding portion 421 is provided on the guiding member 42, and the guiding portion 421 is movably inserted into the limiting groove 434. When the guiding portion 421 is inserted into the limiting groove 434, the guiding member 42 is relatively fixed to the adjusting member 43 in the circumferential direction and rotates synchronously with the adjusting member 43. When the guiding portion 421 disengages from the limiting groove 434, the guiding member 42 and the adjusting member 43 are rotationally matched in the circumferential direction, and the guiding member 42 does not rotate with the adjusting member 43. There are two limiting grooves 434 and two guiding portions 421. The two guiding portions 421 are movably opposite to the two limiting grooves 434. The two limiting grooves 434 are connected by the adjusting portion 435. The height of the upper end surface of the adjusting portion 435 increases in the direction away from the limiting groove 434. By providing the adjusting portion 435, it can be ensured that when the guiding member 42 moves downward, the two guiding portions 421 smoothly fall into the two limiting grooves 434.

[0039] As Figures 2 to 5 shown in the figure, the lower end of the guiding member 42 extends to the lower side of the mixing cylinder 3. A movable plate 312 is longitudinally slidably connected in the liquid inlet passage 31. When the movable plate 312 is inside the liquid inlet passage 31, it blocks the liquid inlet passage 31. Specifically, a guiding groove is provided on the side wall of the liquid inlet passage 31 in the vertical direction, and a guiding rod 311 is fixed in the guiding groove. The length of the guiding rod 311 is greater than the length of the liquid inlet passage 31. Both ends of the guiding rod 311 extend to the outside of the liquid inlet passage 31. The movable plate 312 is slidably matched with the guiding rod 311. Springs are sleeved on both the upper and lower sides of the guiding rod 311 by the movable plate 312. When the movable plate 312 slides along the guiding rod 311, it squeezes the upper or lower spring and stores energy in the spring.

[0040] To further improve the stability of the relative sliding of the movable plate 312 with respect to the liquid inlet passage 31, two guiding grooves and two guiding rods 311 are provided. The movable plate 312 is movably abutted against the lower end of the guiding member 42. After the movable plate 312 moves upward to the upper side of the liquid inlet passage 31, it no longer blocks the liquid inlet passage 31 and is movably abutted against the guiding member 42. When the movable plate 312 continues to move upward, it pushes the guiding member 42 to move upward and makes the guiding portion 421 disengage from the limiting groove 434, releasing the circumferential limit between the guiding member 42 and the adjusting member 43.

[0041] A movable portion 313 is rotatably connected to the middle of the movable plate 312. The movable portion 313 is slidably matched with the guiding shaft 41 in the vertical direction. The movable portion 313 is movably abutted against the lower end of the guiding member 42, and the end surface of the movable portion 313 opposite to the guiding member 42 is a toothed surface. After the movable plate 312 moves upward until the movable portion 313 abuts against the guiding member 42, the movable portion 313 is relatively fixed to the guiding member 42. The movable portion 313 is relatively fixed to the guiding shaft 41 in the circumferential direction. The guiding member 42 and the cleaning member 4 both maintain a state of being relatively fixed to the guiding shaft 41.

[0042] When performing the extraction operation, two solvents are respectively added from the first liquid inlet 21 and the second liquid inlet 22. The two solvents enter the liquid inlet channel 31 and push the movable plate 312 to gradually move upward. When the movable plate 312 moves upward, it squeezes the spring on the upper side of the guide rod 311. After the movable part 313 of the movable plate 312 abuts against the lower end of the guide member 42, the guide member 42 moves upward synchronously with the movable plate 312, and the limit between the guide member 42 and the adjusting member 43 is released, and the guide member 42 no longer rotates synchronously with the adjusting member 43. The movable part 313 is relatively fixed to the guide member 42 in the circumferential direction, and both the guide member 42 and the cleaning member 4 are relatively fixed to the guide shaft 41 in the circumferential direction, so as to prevent the cleaning member 4 from affecting the extraction operation.

[0043] As Figure 4 and Figure 5 shown, to further prevent the cleaning member 4 from scraping against the inner wall of the mixing cylinder 3 during the extraction process and reduce the wear of the mixing cylinder 3 caused by the relative rotation with the cleaning member 4 during the extraction operation. The cleaning member 4 includes a connecting portion 401 and a cleaning portion 402. The cleaning portion 402 is in an "L" shape. The connecting portion 401 is threadedly connected to the guide shaft 41, and the cleaning portion 402 is elastically slidably connected to the connecting portion 401 in the horizontal direction. The cleaning portion 402 and the connecting portion 401 can be connected by a compression spring. When the cleaning member 4 is not subjected to an external force, the cleaning portion 402 abuts against the inner wall of the mixing cylinder 3 under the elastic force of the compression spring.

[0044] The cleaning portion 402 is also connected to the connecting portion 401 through a link structure. The link structure is used to limit the relative position between the cleaning portion 402 and the connecting portion 401. The link structure includes a first link 403, a second link 404, and a push rod 422. One end of the first link 403 is hinged to the connecting portion 401, the other end of the first link 403 is hinged to one end of the second link 404, the other end of the second link 404 is hinged to the cleaning portion 402, a push block 405 is provided in the middle of the first link 403, the push rod 422 is fixed to the guide member 42, and the push rod 422 abuts against the push block 405. During the extraction process, the solvent pushes the movable plate 312 to move upward, the movable part 313 moves upward with the movable plate 312 and abuts against the lower end surface of the guide member 42, and pushes the guide member 42 to move upward. When the guide member 42 moves upward, the push rod 422 pushes the push block 405 upward, further pushing the first link 403 to rotate around its lower end. When the first link 403 rotates, it pulls the cleaning portion 402 to slide inward through the second link 404, so that the cleaning portion 402 is separated from the inner wall of the mixing cylinder 3, avoiding continuous friction between the cleaning portion 402 and the mixing cylinder 3 during the extraction process and reducing the wear of the mixing cylinder 3 during the working process. To prevent the push rod 422 from affecting the rotational upward movement of the cleaning member 4, a through groove for avoiding the push rod 422 is provided on the connecting portion 401.

[0045] After the extraction work is completed, it is necessary to clean the inner wall of the mixing cylinder 3 in a timely manner. During the cleaning operation, the cleaning liquid enters from the first liquid outlet 23 and the second liquid outlet 24. The cleaning liquid enters the inside of the mixing cylinder 3 through the first liquid separation tank 32 and the second liquid separation tank 33. The flow direction of the cleaning liquid is avoided to push the movable plate 312 upward. The movable plate 312 is separated from the guiding member 42. The guiding member 42 moves downward under the action of gravity, and the guiding portion 421 is stuck in the limiting groove 434. The guiding member 42 is fixed in the circumferential direction with the adjusting member 43, and the guiding member 42 rotates synchronously with the adjusting member 43 relative to the mixing cylinder 3 in the reverse direction. After the movable plate 312 is separated from the guiding member 42, the push rod 422 moves downward with the guiding member 42, and the cleaning portion 402 abuts against the inner wall of the mixing cylinder 3 again under the elastic force of the compression spring.

[0046] The cleaning member 4 rotates with the guiding member 42 and slides up and down along the guiding shaft 41 under the screw fit with the guiding shaft 41. By alternately switching the driving direction of the driving source 11, the reciprocating up and down sliding of the cleaning member 4 in the mixing cylinder 3 can be realized. The cleaning member 4 rotates and lifts while fitting the inner wall of the mixing cylinder 3, scrapes and cleans the solvent remaining on the inner wall of the mixing cylinder 3, and stirs the cleaning liquid in the mixing cylinder 3 to promote the full contact between the cleaning liquid and the inner wall of the mixing cylinder 3, improving the cleaning effect on the mixing cylinder 3.

[0047] The cleaning liquid enters the mixing cylinder 3 from top to bottom, and when flowing to the bottom of the mixing cylinder 3, it pushes the movable plate 312 to fit and move downward along the liquid inlet passage 31. When the movable plate 312 moves to the lower side of the liquid inlet passage 31, the cleaning liquid can enter the first liquid inlet 21 and the second liquid inlet 22 through the liquid inlet passage 31, and is further discharged and collected through the first liquid inlet 21 and the second liquid inlet 22.

[0048] The extraction and impurity removal device provided by the present invention is provided with a cleaning mechanism in the mixing cylinder, and by setting different liquid inlet directions in the extraction state and the cleaning state, the relative rotation state of the cleaning member in the mixing cylinder with the guiding shaft is flexibly adjusted. After the extraction work is completed, the cleaning member rotates and lifts while fitting the inner wall of the mixing cylinder to clean the mixing cylinder, effectively ensuring the cleaning effect of the mixing cylinder.

[0049] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. An extraction and impurity removal device, comprising a frame (1), a shell (2) fixedly mounted on the frame (1), and a mixing cylinder (3) arranged inside the shell (2), wherein the mixing cylinder (3) is connected to a driving structure for driving the mixing cylinder (3) to rotate, and characterized in that: The lower end of the shell (2) is provided with a first liquid inlet (21) and a second liquid inlet (22); the upper end of the shell (2) is provided with a first liquid outlet (23) and a second liquid outlet (24); the lower end of the mixing barrel (3) is provided with a liquid inlet channel (31) which is connected to the first liquid inlet (21) and the second liquid inlet (22); the upper end of the mixing barrel (3) is provided with a first liquid separation groove (32) which is connected to the first liquid outlet (23) and a second liquid separation groove (33) which is connected to the second liquid outlet (24); the inner side of the mixing barrel (3) is the side facing the axis of the mixing barrel (3). The liquid inlet end of the first liquid separation groove (32) is located outside the liquid inlet end of the second liquid separation groove (33); a cleaning mechanism is provided inside the mixing cylinder (3), the cleaning mechanism comprises a guide shaft (41), a cleaning member (4) and an adjustment assembly, the guide shaft (41) is coaxially arranged with the mixing cylinder (3), the lower end of the guide shaft (41) is fixed to the housing (2), the cleaning member (4) is threadedly connected to the guide shaft (41), and the adjustment assembly is used to adjust the relative rotation state of the cleaning member (4) and the guide shaft (41).

2. The extraction and impurity removal device according to claim 1, characterized in that: The adjustment component comprises an adjustment member (43), a guide member (42) and a transmission structure; a connecting seat (411) is fixed to the upper end of the guide shaft (41); the connecting seat (411) is rotationally matched with the mixing barrel (3); the adjustment member (43) is rotationally matched with the connecting seat (411); the mixing barrel (3) is connected to the adjustment member (43) via the transmission structure; the adjustment member (43) rotates in the opposite direction relative to the mixing barrel (3); a limiting groove (434) is provided inside the adjustment member (43); the upper end of the guide member (42) is movably plugged into the limiting groove (434); when the guide member (42) is inserted into the limiting groove (434), it is fixed relative to the adjustment member (43).

3. The extraction and impurity removal device according to claim 2, characterized in that: The upper end of the guide member (42) is provided with a portion extending between the guide shaft (41) and the adjusting member (43); a guide portion (421) is fixed on the guide member (42); and the guide portion (421) is movably plugged into the limiting groove (434).

4. The extraction and impurity removal device according to claim 3, characterized in that: There are two limit slots (434), and there are two guide parts (421). The two guide parts (421) and the two limit slots (434) are movable relative to each other. The two limit slots (434) are connected via an adjustment part (435), and the height of the adjustment part (435) increases in a direction away from the limit slot (434).

5. The extraction and impurity removal device according to claim 3, characterized in that: The liquid inlet channel (31) is provided with a guide groove in the vertical direction, a guide rod (311) is fixed in the guide groove, two ends of the guide rod (311) respectively extend to the upper and lower sides of the liquid inlet channel (31), a movable plate (312) slidably matched with the guide rod (311) is provided in the liquid inlet channel (31), the movable plate (312) is elastically connected to the guide rod (311) at its upper and lower sides, a movable part (313) is rotatably connected to the middle part of the movable plate (312), the movable part (313) is movably abutted against the lower end of the guide member (42), and the movable part (313) is relatively fixed when abutting against the guide member (42).

6. The extraction and impurity removal device according to claim 5, characterized in that: The movable portion (313) is slidably matched with the guide shaft (41) in the vertical direction, and the end surfaces of the movable portion (313) and the guide member (42) facing each other are both toothed surfaces.

7. The extraction and impurity removal device according to claim 2, characterized in that: The transmission structure comprises a gear ring (433), a gear (432) and a tooth portion (431); the gear ring (433) is fixed on the top of the mixing barrel (3); the gear ring (433) is coaxially arranged with the mixing barrel (3); the gear (432) is rotationally matched with the connecting seat (411); the tooth portion (431) is arranged on the outer peripheral side of the adjusting member (43); and the gear (432) is meshed with the gear ring (433) and the tooth portion (431) at the same time.

8. The extraction and impurity removal device according to claim 2, characterized in that: The cleaning member (4) comprises a connecting portion (401) and a cleaning portion (402); the connecting portion (401) is threadedly connected to the guide shaft (41); the cleaning portion (402) is elastically slidably connected to the connecting portion (401) in a horizontal direction; the cleaning portion (402) is also connected to the connecting portion (401) via a connecting rod structure; the connecting rod structure is used to limit the relative position of the cleaning portion (402) and the connecting portion (401).

9. The extraction and impurity removal device according to claim 8, characterized in that: The connecting rod structure comprises a connecting rod 1 (403), a connecting rod 2 (404) and a push rod (422); one end of the connecting rod 1 (403) is hinged to the connecting portion (401); the other end of the connecting rod 1 (403) is hinged to one end of the connecting rod 2 (404); the other end of the connecting rod 2 (404) is hinged to the cleaning portion (402); a push block (405) is provided in the middle of the connecting rod 1 (403); the push rod (422) is fixed to the guide member (42); and the push rod (422) abuts against the push block (405).

10. The extraction and impurity removal device according to claim 1, characterized in that: The driving structure comprises a driving source (11) and a driving shaft (111); the driving source (11) is mounted on the housing (2); a driving end of the driving source (11) is connected to the driving shaft (111); and the driving shaft (111) is fixed to the mixing barrel (3).

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