CN114712891A

CN114712891A - Reflux extracting pot

Info

Publication number: CN114712891A
Application number: CN202210506693.6A
Authority: CN
Inventors: 马文洁; 陈成辉; 王晓敏; 叶磊; 史训成
Original assignee: ZHEJIANG JINAN PHARMACEUTICAL MACHINERY CO Ltd
Current assignee: ZHEJIANG JINAN PHARMACEUTICAL MACHINERY CO Ltd
Priority date: 2022-05-11
Filing date: 2022-05-11
Publication date: 2022-07-08
Anticipated expiration: 2042-05-11
Also published as: CN114712891B

Abstract

The invention discloses a reflux extraction tank, which belongs to the technical field of solvent extraction equipment and comprises an opening and closing mechanism, a tank body mounting frame, an extraction tank body, a tank body sealing cover, a material mixing mechanism and a heating mechanism, wherein the extraction tank body is arranged on the tank body mounting frame, an opening is formed in the top of the extraction tank body, the opening and closing mechanism is arranged at the side end of the tank body mounting frame, the tank body sealing cover is arranged on the opening and closing mechanism, the tank body sealing cover is positioned right above the extraction tank body, the material mixing mechanism is arranged on one side, close to the extraction tank body, of the tank body sealing cover, the heating mechanism is arranged on the side wall of the extraction tank body, and a discharge hole is formed in the bottom of the extraction tank body. According to the invention, the materials can be mixed and stirred in the extraction process through the material mixing mechanism, so that the materials and the extracting solution are fully combined, and the extraction efficiency is improved.

Description

Reflux extracting pot

Technical Field

The invention relates to the technical field of solvent extraction equipment, in particular to a reflux extraction tank.

Background

The extraction tank is a leaching extraction device commonly used in pharmaceutical and chemical industries, and is particularly suitable for leaching and extracting components contained in plant products. The structure of the device comprises a tank body, a spiral propeller or a propeller arranged in the tank body at an axial position and connected with a rotating shaft disc outside the tank body, and the device is characterized by comprising a group of continuous countercurrent leaching and extracting single tanks which are inclined, wherein a discharge port is connected with a feed port to form a communicating device, the upper part of the lower end of each single tank body is provided with the feed port, the lower part of each single tank body is provided with a residual liquid discharge port, the upper part of the high end of the tank body is provided with a liquid inlet or an exhaust port, and the lower part of the tank body is provided with a discharge port.

The chinese patent invention with publication number CN113209661A in the prior art provides a traditional Chinese medicine reflux extraction tank, wherein a heater is connected on a reflux extraction tank body, a cooler is installed at the upper end of the reflux extraction tank body, a material bearing frame is rotatably arranged in the reflux extraction tank body, the upper end of the material bearing frame is fixed with the lower end of a rotating shaft, the other end of the rotating shaft is coaxially fixed with an output shaft of a motor fixed at the upper end of the reflux extraction tank body, a drain pipe is connected with the lower part of the reflux extraction tank body, the drain pipe is communicated with a liquid storage tank a, the drain pipe is communicated with the liquid storage tank a, a water pump is installed on the drain pipe, the drain pipe is communicated with a reflux pipe, and the reflux pipe is communicated with a liquid inlet at the upper end of the reflux extraction tank body; the method can improve the extraction speed of the medicinal materials, and is favorable for fully extracting the effective components of the medicament.

But this patent is carrying out the extraction in-process uncontrollable medicine to the medicine and carrying out intensive mixing to the property of a medicine that leads to being in inboard can't be effectively extracted, the a large amount of wastes that cause.

Disclosure of Invention

Embodiments of the present invention provide a reflux extraction tank to solve the above mentioned technical problems.

The embodiment of the invention adopts the following technical scheme: including mechanism, the jar body mounting bracket of opening and shutting, draw the jar body, jar body closing cap, material mixing mechanism and heating mechanism, draw jar body setting on jar body mounting bracket to the top that draws the jar body sets up opens spacious opening, and the mechanism that opens and shuts sets up the side at jar body mounting bracket, and jar body closing cap sets up in the mechanism that opens and shuts, and jar body closing cap is in and draws jar body directly over, and material mixing mechanism sets up on jar body closing cap to material mixing mechanism is in the one side that is close to drawing the jar body, heating mechanism sets up at the lateral wall that draws the jar body, and the bottom that draws the jar body sets up the bin outlet.

Further, the material mixing mechanism comprises a material screen, a material driving motor, a mixing driving rod, a mixing adjusting disc, an adjusting mechanism and a pressure spring, wherein the mixing driving rod is rotatably arranged on the tank body sealing cover, the longer end of the mixing driving rod extends out of the lower end face of the tank body sealing cover, the material screen is sleeved on the mixing driving rod, the upper end of the material screen is provided with a rotating pulley, the material driving motor is arranged on the tank body sealing cover and is in transmission connection with the mixing driving rod, the lower end face of the mixing driving rod is provided with a mixing transmission arm, two sides of the mixing transmission arm are provided with transmission slide rods, the material screen is provided with a transmission sliding sleeve corresponding to the transmission slide rods, the transmission slide rods are inserted in the transmission sliding sleeve, the pressure spring is sleeved on the mixing driving rod, and the pressure spring is positioned between the material screen and the mixing transmission arm, one end of the mixing adjusting disc is hinged to the lower end face of the tank body sealing cover, the rotating pulley on the material screen is in contact with the lower end face of the mixing adjusting disc, the adjusting mechanism is arranged on the tank body sealing cover, and the adjusting mechanism is in transmission connection with the mixing adjusting disc.

Further, adjustment mechanism sets up the one side of keeping away from mixed adjusting disk hinged end on jar body closing cap, adjustment mechanism includes accommodate motor, regulation chain, regulation lift lead screw and adjustment lead screw cover, and the adjustment lead screw cover rotates and sets up on jar body closing cap, it slides and sets up on jar body closing cap to adjust lift lead screw and be in the adjustment lead screw cover, accommodate motor sets up the side at jar body closing cap, the regulation chain cover is established and is sheathe in accommodate motor and adjustment lead screw, the lower terminal surface of adjusting lift lead screw sets up accommodate the gyro wheel, accommodate the gyro wheel and contradict each other with the up end of mixed adjusting disk.

Furthermore, a tensioning spring is arranged on the mixing adjusting disc, one end of the tensioning spring is connected to the upper end face of the mixing adjusting disc, and the other end of the tensioning spring is connected to the lower end face of the tank body sealing cover.

Furthermore, the adjusting mechanism further comprises an adjusting limiting column, an adjusting limiting sleeve is arranged at the top of the adjusting lifting screw rod, and the adjusting limiting sleeve on the adjusting lifting screw rod is sleeved on the adjusting limiting column.

Further, the mechanism that opens and shuts is including the mounting bracket that opens and shuts, the driving motor that opens and shuts, the elevating platform that opens and shuts and the lift lead screw that opens and shuts, and the mounting bracket setting that opens and shuts is extracting the side of the jar body, and the vertical rotation of the lift lead screw that opens and shuts sets up on the mounting bracket that opens and shuts, sets up the lift lead screw cover that opens and shuts on the elevating platform, and the elevating platform that opens and shuts sets up on the lift lead screw that opens and shuts to the lead screw cover that opens and shuts sets up, the fixed lower terminal surface that sets up at the elevating platform that opens and shuts of jar body closing cap, the driving motor that opens and shuts sets up on the mounting bracket that opens and shuts, and the driving motor transmission that opens and shuts is connected to the lift lead screw that opens and shuts.

Further, one side that is close to the mounting bracket that opens and shuts on the elevating platform that opens and shuts is provided with the spacing chamber that opens and shuts, the spacing intracavity symmetry that opens and shuts is provided with four spacing wheels that open and shuts, is provided with the limiting plate that opens and shuts on the mounting bracket that opens and shuts, and the both sides of the limiting plate that opens and shuts all are provided with the spacing groove that opens and shuts, and the limiting plate that opens and shuts is in the spacing intracavity side that opens and shuts to four spacing wheels that open and shut in the spacing intracavity that open and shut all agree with in the spacing inslot that opens and shuts of the limiting plate both sides that open and shut.

Furthermore, a backflow port and a liquid injection port are arranged on the extraction tank body.

The embodiment of the invention adopts at least one technical scheme which can achieve the following beneficial effects:

firstly, a material mixing mechanism is arranged in the invention, when the materials and the extracting solution are required to be promoted to be mixed with each other, the adjusting mechanism is started to adjust the mixing adjusting disc to be in an inclined state, then the material driving motor drives the mixing driving rod to rotate through the material driving motor, the material screen is rotated through the mutual matching of the transmission sliding rod on the mixing driving rod and the transmission sliding sleeve on the material screen, the rotating pulley at the top of the material screen always collides with the lower end face of the mixing adjusting disc in the rotating process of the material screen, the material screen is jacked up under the driving of a pressure spring when the rotating pulley slides to the upturned end of the mixing adjusting disc, the material screen slides to the pressure direction of the mixing adjusting disc when the rotating pulley slides to the lower end of the mixing adjusting disc, so that the material screen can rotate and lift on the mixing driving rod, and the materials in the material screen can be subjected to dispersion mixing operation, the extraction efficiency of the material in the embodiment is improved.

Secondly, the mixing adjusting disc can be adjusted to be in a horizontal state through the adjusting mechanism, the material driving motor is started, the material screen is driven to rotate through the material driving motor, at the moment, the mixing adjusting disc is in the horizontal state, all parts of the mixing adjusting disc are located at the same height, the rotating pulley on the material screen slides stably on the mixing adjusting disc, and the material screen rotates stably under the operation of the material driving motor, so that the extracting solution remained in the material is thrown out.

Thirdly, the opening and closing mechanism is arranged, the opening and closing driving motor is started when the material mixing mechanism needs to be filled with and maintained, the tank body sealing cover and the material mixing mechanism are lifted from the extracting tank body through the opening and closing driving motor, the extracting tank body can be cleaned and maintained by workers at the moment, when the extracting tank needs to be processed, the materials are filled into the material mixing mechanism, then the opening and closing driving motor is started, the tank body sealing cover and the material mixing mechanism are placed in the extracting tank body through the opening and closing driving motor, and the extracting tank body is in a sealed state, so that subsequent extracting operation is facilitated.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic perspective view of an extraction tank according to the present invention;

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2;

FIG. 4 shows a first operating state of the material mixing mechanism according to the present invention;

FIG. 5 shows a second operating mode of the material mixing mechanism according to the present invention;

FIG. 6 is an enlarged view of the structure at B in FIG. 4;

FIG. 7 is a perspective view of the material mixing mechanism of the present invention;

FIG. 8 is a perspective view of the opening and closing mechanism of the present invention;

fig. 9 is a sectional view of the opening and closing mechanism of the present invention.

Reference numerals

1. An opening and closing mechanism; 11. the mounting frame is opened and closed; 12. an opening and closing driving motor; 13. opening and closing the lifting platform; 14. the lifting screw rod is opened and closed; 15. opening and closing the screw rod sleeve; 16. the opening and closing limiting cavity; 161. opening and closing the limiting wheel; 17. opening and closing the limit plate; 171. opening and closing the limiting groove; 2. a tank body mounting frame; 3. extracting the tank body; 31. a discharge outlet; 4. a tank body closing cover; 5. a material mixing mechanism; 51. a material screen; 511. rotating the pulley; 512. a transmission sliding sleeve; 52. a material driving motor; 53. a hybrid drive shaft; 531. a hybrid drive arm; 532. a transmission slide bar; 54. a mixing adjustment disk; 55. an adjustment mechanism; 551. adjusting the motor; 552. adjusting the chain; 553. adjusting a lifting screw rod; 554. adjusting the screw rod sleeve; 555. adjusting the roller; 556. adjusting a limit sleeve; 56. a pressure spring; 57. tensioning the spring; 58. adjusting the limiting column; 6. a heating mechanism; 7. a return port; 8. and a liquid injection port.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The technical solutions provided by the embodiments of the present invention are described in detail below with reference to fig. 1 to 9.

The embodiment of the invention provides a reflux extraction tank, which comprises an opening and closing mechanism 1, a tank body mounting rack 2, an extraction tank body 3, a tank body sealing cover 4, a material mixing mechanism 5 and a heating mechanism 6, wherein the extraction tank body 3 is arranged on the tank body mounting rack 2, the top of the extraction tank body 3 is provided with an open port, the opening and closing mechanism 1 is arranged at the side end of the tank body mounting rack 2, the tank body sealing cover 4 is arranged on the opening and closing mechanism 1, the tank body sealing cover 4 is positioned right above the extraction tank body 3, the opening and closing of the tank body sealing cover 4 on the extraction tank body 3 can be controlled through the opening and closing mechanism 1, the material mixing mechanism 5 is arranged on the tank body sealing cover 4, the material mixing mechanism 5 is positioned at one side close to the extraction tank body 3, materials to be extracted are placed in the material mixing mechanism 5, the heating mechanism 6 is arranged on the side wall of the extraction tank body 3, the interior of the extraction tank body 3 is heated through the heating mechanism 6, so as to realize the extraction effect, the bottom of the extraction tank body 3 is provided with a discharge port 31.

In the operation process, a worker places materials to be extracted in a material mixing mechanism 5, extracts are injected into an extracting tank body 3, then the opening and closing mechanism 1 is started, a tank body sealing cover 4 is driven to cover the top of the extracting tank body 3 through the opening and closing mechanism 1, the inside of the extracting tank body 3 is in a sealed state, the material mixing mechanism 5 is located in the extracting tank body 3, the materials in the material mixing mechanism 5 are soaked in the extracts, a heating mechanism 6 is started, the extracts in the extracting tank body 3 are heated through the heating mechanism 6 to realize extraction, the material mixing mechanism 5 is started in the extraction process, the materials in the material mixing mechanism 5 are subjected to swing mixing to promote the full contact of the materials and the extracts, the extraction efficiency is improved, and after the extraction is completed, the material mixing mechanism 5 runs at a high speed to throw out the extracts remained in the materials, the extracted medicament is discharged through the discharge opening 31 for subsequent backflow and output processing.

Preferably, the material mixing mechanism 5 comprises a material screen 51, a material driving motor 52, a mixing driving rod 53, a mixing adjusting disc 54, an adjusting mechanism 55 and a pressure spring 56, the mixing driving rod 53 is rotatably arranged on the tank body closing cover 4, the longer end of the mixing driving rod 53 extends out of the lower end face of the tank body closing cover 4, the material screen 51 is sleeved on the mixing driving rod 53, the material screen 51 can slide up and down and rotate on the mixing driving rod 53, the upper end of the material screen 51 is provided with a rotating pulley 511, the material driving motor 52 is arranged on the tank body closing cover 4, the material driving motor 52 is in transmission connection with the mixing driving rod 53, the lower end face of the mixing driving rod 53 is provided with a mixing driving arm 531, two sides of the mixing driving arm 531 are provided with a driving slide bar 532, the material screen 51 is provided with a driving slide sleeve 512 corresponding to the driving slide bar 532, the transmission slide bar 532 is inserted into the transmission slide sleeve 512, the pressure spring 56 is sleeved on the hybrid drive rod 53, the pressure spring 56 is positioned between the material screen 51 and the hybrid drive arm 531, the material screen 51 is lifted upwards through the pressure spring 56, one end of the hybrid adjusting disk 54 is hinged to the lower end face of the tank body sealing cover 4, the rotating pulley 511 on the material screen 51 is contacted with the lower end face of the hybrid adjusting disk 54, the adjusting mechanism 55 is arranged on the tank body sealing cover 4, the adjusting mechanism 55 is in transmission connection with the hybrid adjusting disk 54, and the setting angle of the hybrid adjusting disk 54 can be controlled through the adjusting mechanism 55;

the worker places the material in the material screen 51, when the material and the extracting solution need to be promoted to be mixed with each other, the adjusting mechanism 55 is started, the adjusting mechanism 55 controls the mixed adjusting disc 54 to incline downwards, the material driving motor 52 is started again, the mixed driving rod 53 is driven to rotate by the material driving motor 52, the material screen 51 is rotated by the mutual matching of the transmission slide rod 532 on the mixed driving rod 53 and the transmission slide sleeve 512 on the material screen 51, the rotating pulley 511 at the top of the material screen 51 is always abutted against the lower end face of the mixed adjusting disc 54 in the rotating process of the material screen 51, the material screen 51 is jacked upwards under the driving of the pressure spring 56 when the rotating pulley 511 slides to the upwarped end of the mixed adjusting disc 54, and the material screen 51 slides towards the pressure of the mixed adjusting disc 54 when the rotating pulley 511 slides to the lower end of the mixed adjusting disc 54, therefore, the material screen 51 can rotate and lift on the mixing driving rod 53, so that the materials in the material screen 51 can be shaken and dispersed to be mixed, the extraction efficiency of the materials in the embodiment is improved, and the material screen 51 rotates and slides up and down on the rotating slide rod while running, so that the normal running of the equipment is kept;

when the extracting solution in the material needs to be thrown out, the adjusting mechanism 55 is started, the adjusting mechanism 55 controls the mixing adjusting disc 54 to be in a horizontal state, the material driving motor 52 is started again, the material screen mesh 51 is driven to rotate by the material driving motor 52, at the moment, because the mixing adjusting disc 54 is in the horizontal state, all parts of the mixing adjusting disc 54 are at the same height, the rotating pulley 511 on the material screen mesh 51 slides stably on the mixing adjusting disc 54, the material screen mesh 51 rotates stably under the operation of the material driving motor 52, and therefore the extracting solution remaining in the material is thrown out.

Preferably, the adjusting mechanism 55 is disposed on one side of the can body closing cover 4 away from the hinged end of the mixing adjusting disc 54, the adjusting mechanism 55 includes an adjusting motor 551, an adjusting chain 552, an adjusting lifting screw 553 and an adjusting screw sleeve 554, the adjusting screw sleeve 554 is rotatably disposed on the can body closing cover 4, the adjusting lifting screw 553 is slidably disposed on the can body closing cover 4, the adjusting lifting screw 553 is disposed in the adjusting screw sleeve 554, the adjusting motor 551 is disposed on the side end of the can body closing cover 4, the adjusting chain 552 is sleeved on the adjusting motor 551 and the adjusting screw sleeve 554, the lower end surface of the adjusting lifting screw 553 is disposed with an adjusting roller 555, the adjusting roller 555 is abutted against the upper end surface of the mixing adjusting disc 54, when the adjusting motor 551 is operated, the adjusting motor 551 is started, the adjusting screw sleeve 554 is rotated by driving the adjusting chain 552 through the adjusting motor, and the adjusting lifting screw sleeve 554 is matched with the adjusting lifting screw to drive the adjusting lifting screw 553 to advance the adjusting lifting screw 553 And performing lifting action, wherein when the adjusting lifting screw 553 moves downwards, the adjusting roller 555 and the upper end surface of the mixing adjusting disc 54 are mutually abutted, and the mixing adjusting disc 54 is pushed to perform angle adjustment.

Preferably, a tension spring 57 is arranged on the mixing adjustment disc 54, one end of the tension spring 57 is connected to the upper end face of the mixing adjustment disc 54, the other end of the tension spring 57 is connected to the lower end face of the can body closing cover 4, and the mixing adjustment disc 54 is pulled upwards through the arranged tension spring 57, so that the adjustment roller 555 is always in contact with the upper end face of the mixing adjustment disc 54 when the adjustment mechanism 55 adjusts the mixing adjustment disc 54, and the control stability of the adjustment mechanism 55 is improved.

Preferably, the adjusting mechanism 55 further includes an adjusting limiting post 58, an adjusting limiting sleeve 556 is disposed at the top of the adjusting lifting screw 553, the adjusting limiting sleeve 556 on the adjusting lifting screw 553 is sleeved on the adjusting limiting post 58, and the driving direction of the adjusting lifting screw 553 can be limited by the mutual matching of the adjusting limiting post 58 and the adjusting limiting sleeve 556, so that the adjusting stability of the adjusting mechanism 55 is improved.

Preferably, the opening and closing mechanism 1 comprises an opening and closing mounting frame 11, an opening and closing driving motor 12, an opening and closing lifting platform 13 and an opening and closing lifting screw rod 14, the opening and closing mounting frame 11 is arranged at the side end of the extraction tank body 3, the opening and closing lifting screw rod 14 is vertically and rotatably arranged on the opening and closing mounting frame 11, an opening and closing screw rod sleeve 15 is arranged on the opening and closing lifting platform 13, the opening and closing lifting platform 13 is erected on the opening and closing mounting frame 11, the opening and closing screw rod sleeve 15 is arranged on the opening and closing lifting screw rod 14, the tank body sealing cover 4 is fixedly arranged at the lower end face of the opening and closing lifting platform 13, the opening and closing driving motor 12 is arranged on the opening and closing mounting frame 11, the opening and closing driving motor 12 is in transmission connection with the opening and closing lifting screw rod 14, the opening and closing driving motor 12 drives the opening and closing lifting screw rod 14 to rotate during operation, and the opening and closing screw rod 14 is matched with the opening and closing screw rod sleeve 15 on the opening and closing lifting platform 13 to adjust the height of the opening and closing lifting platform 13, when the material mixing mechanism 5 needs to be filled with materials and maintained, the opening and closing driving motor 12 is started, the tank body sealing cover 4 and the material mixing mechanism 5 are lifted from the extracting tank body 3 through the opening and closing driving motor 12, at the moment, workers can clean and maintain the extracting tank body 3, when the materials need to be processed and extracted, the materials are filled into the material mixing mechanism 5, then the opening and closing driving motor 12 is started, the tank body sealing cover 4 and the material mixing mechanism 5 are placed in the extracting tank body 3 through the opening and closing driving motor 12, and the extracting tank body 3 is in a closed state, so that subsequent extracting operation is facilitated.

Preferably, the one side that is close to the mounting bracket 11 that opens and shuts on the elevating platform 13 that opens and shuts is provided with the spacing chamber 16 that opens and shuts, the symmetry is provided with four spacing wheels 161 that open and shut in the spacing chamber 16 that opens and shuts, is provided with the limiting plate 17 that opens and shuts on the mounting bracket 11 that opens and shuts, and the both sides of the limiting plate 17 that opens and shuts all are provided with the spacing groove 171 that opens and shuts, and the limiting plate 17 that opens and shuts is in the spacing chamber 16 inboard that opens and shuts to four spacing wheels 161 that open and shuts in the spacing chamber 16 all agree with the spacing groove 171 that opens and shuts at the limiting plate 17 both sides that opens and shuts, carry on spacingly to the elevating platform 13 that opens and shuts through mutually supporting of the spacing wheels 161 that opens and shuts and the spacing groove 171 that open and shut, thereby guarantee that the elevating platform 13 that opens and shuts can carry out stable elevating action.

Preferably, the extraction tank body 3 is provided with a backflow port 7 and a liquid injection port 8, a worker inputs cooled backflow chemicals into the extraction tank body 3 through the backflow port 7 for re-extraction, and the extraction liquid can be injected into the extraction tank body 3 through the arranged liquid injection port 8, so that the extraction liquid can be injected according to the extraction condition and the properties of different materials in the operation process of the equipment.

The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. Backflow extraction tank, including heating mechanism (6), its characterized in that, still including opening and shutting mechanism (1), jar body mounting bracket (2), draw jar body (3), jar body closing cap (4) and material mixing mechanism (5), it sets up on jar body mounting bracket (2) to draw jar top of the body (3) to set up and open the mouth, and opening and shutting mechanism (1) sets up the side at jar body mounting bracket (2), and jar body closing cap (4) sets up on opening and shutting mechanism (1), and jar body closing cap (4) are in and draw jar body (3) directly over, and material mixing mechanism (5) set up the one side that is close to and draws jar body (3) on jar body closing cap (4), heating mechanism (6) set up the lateral wall that draws jar body (3), draw the bottom of the jar body (3) to set up bin outlet (31).

2. The reflux extraction tank as claimed in claim 1, wherein the material mixing mechanism (5) comprises a material screen (51), a material driving motor (52), a mixing driving rod (53), a mixing adjusting disc (54), an adjusting mechanism (55) and a pressure spring (56), the mixing driving rod (53) is rotatably disposed on the tank body closing cover (4), one end of the mixing driving rod (53) extends out from the lower end face of the tank body closing cover (4), the material screen (51) is sleeved on the mixing driving rod (53), one side of the upper end of the material screen (51) is provided with a rotating pulley (511), the material driving motor (52) is disposed on the tank body closing cover (4), the material driving motor (52) is in transmission connection with the other end of the mixing driving rod (53), the lower end of the mixing driving rod (53) is provided with a mixing transmission arm (531), the two sides of the mixed transmission arm (531) are provided with transmission sliding rods (532), a transmission sliding sleeve (512) corresponding to the transmission sliding rods (532) is arranged on the material screen (51), the transmission sliding rods (532) are inserted into the transmission sliding sleeve (512), a pressure spring (56) is sleeved on the mixed transmission rod (53), the pressure spring (56) is positioned between the material screen (51) and the mixed transmission arm (531), one end of the mixed adjusting disc (54) is hinged to the lower end face of the tank body closing cover (4), a rotating pulley (511) on the material screen (51) is in contact with the lower end face of the mixed adjusting disc (54), the adjusting mechanism (55) is arranged on the tank body closing cover (4), and the adjusting mechanism (55) is in transmission connection with the mixed adjusting disc (54).

3. The reflux extraction tank as claimed in claim 2, wherein the adjusting mechanism (55) is arranged on the side of the tank body closing cover (4) far away from the hinged end of the mixing adjusting disk (54), the adjusting mechanism (55) comprises an adjusting motor (551), an adjusting chain (552), an adjusting lifting screw rod (553) and an adjusting screw rod sleeve (554), the adjusting screw rod sleeve (554) is rotatably arranged on the tank body closing cover (4), the adjusting lifting screw rod (553) is slidably arranged on the tank body closing cover (4), the adjusting lifting screw rod (553) is arranged in the adjusting screw rod sleeve (554), the adjusting motor (551) is arranged at the side end of the tank body closing cover (4), the adjusting chain (552) is sleeved on the adjusting motor (551) and the adjusting screw rod sleeve (554), the adjusting lifting screw rod (553) is provided with an adjusting roller (555) at the lower end surface, the adjusting roller (555) is abutted against the upper end face of the mixing adjusting disc (54).

4. The reflux extraction tank as claimed in claim 2, wherein the mixing adjustment disc (54) is provided thereon with a tension spring (57), one end of the tension spring (57) is connected to the upper end surface of the mixing adjustment disc (54), and the other end of the tension spring (57) is connected to the lower end surface of the tank closure cap (4).

5. The reflux extraction tank as recited in claim 3, wherein said adjusting mechanism (55) further comprises an adjusting limit post (58), an adjusting limit sleeve (556) is disposed on the top of the adjusting lifting screw (553), and the adjusting limit sleeve (556) on the adjusting lifting screw (553) is sleeved on the adjusting limit post (58).

6. The reflux extraction tank as claimed in claim 1, wherein the opening and closing mechanism (1) comprises an opening and closing mounting frame (11), an opening and closing driving motor (12), an opening and closing lifting platform (13) and an opening and closing lifting screw rod (14), the opening and closing mounting frame (11) is arranged at the side end of the extraction tank body (3), the opening and closing lifting screw rod (14) is vertically and rotatably arranged on the opening and closing mounting frame (11), an opening and closing screw rod sleeve (15) is arranged on the opening and closing lifting platform (13), the opening and closing lifting platform (13) is erected on the opening and closing mounting frame (11), and the opening and closing screw rod sleeve (15) is sleeved on the opening and closing lifting screw rod (14), the tank body closing cover (4) is fixedly arranged on the lower end surface of the opening and closing lifting platform (13), the opening and closing driving motor (12) is arranged on the opening and closing mounting frame (11), and the opening and closing driving motor (12) is connected to the opening and closing lifting screw rod (14) in a transmission mode.

7. The reflux extraction tank of claim 6, wherein one side of the opening and closing lifting platform (13) close to the opening and closing mounting rack (11) is provided with an opening and closing limiting cavity (16), four opening and closing limiting wheels (161) are symmetrically arranged in the opening and closing limiting cavity (16), an opening and closing limiting plate (17) is arranged on the opening and closing mounting rack (11), two sides of the opening and closing limiting plate (17) are provided with opening and closing limiting grooves (171), the opening and closing limiting plate (17) is positioned at the inner side of the opening and closing limiting cavity (16), and four opening and closing limiting wheels (161) in the opening and closing limiting cavity (16) are all engaged in the opening and closing limiting grooves (171) at two sides of the opening and closing limiting plate (17).

8. The reflux extraction tank as claimed in claim 1, wherein the extraction tank body (3) is provided with a reflux port (7) and a liquid injection port (8).