An alcohol recovery tower for extracting Chinese medicinal materials

Abstract

The invention relates to the technical field of distillation, and specifically discloses an alcohol recovery tower for extracting Chinese medicinal materials, comprising a tower body, a storage tank and a first condenser, and further comprising: a heating mechanism, the heating mechanism is installed at the bottom of the tower body, a containing cavity is formed between the heating mechanism and the bottom of the tower body, a filter screen is installed inside the heating mechanism; a water absorbent is placed on the filter screen; a conveying mechanism, the conveying mechanism is installed outside the tower body, the input end of the conveying mechanism is connected to the top of the containing cavity; a recovery mechanism, the input end of the recovery mechanism is connected to the bottom of the containing cavity, and the output end of the recovery mechanism is connected to the top of the heating mechanism, the water absorbent can process the evaporating mixed liquid, increase the proportion of alcohol in the mixed liquid, ensure that most of the heat can act on the alcohol, and can simultaneously improve the thermal efficiency of the heating mechanism and the recovery efficiency of the alcohol, so as to realize the reuse of the water absorbent, so as to achieve the effect of solving the problem of resource reduction and cost reduction.

Description

Technical Field

[0001] The invention relates to the technical field of distillation, in particular to an alcohol recovery tower for extracting traditional Chinese medicine. Background Art

[0002] Chinese medicinal materials are rich in chemical components such as sugars, amino acids, oils, alkaloids, glycosides, etc., which can be extracted by water extraction or alcohol extraction. Water extraction and alcohol extraction are two common extraction methods, which use water and ethanol as solvents respectively. Water extraction mainly uses the interaction between water and raw materials to extract the soluble components in the raw materials, while alcohol extraction uses the characteristics of alcohol and other organic solvents to separate the effective ingredients in the raw materials.

[0003] Taking sugars as an example, when extracting sugars from Chinese medicinal materials, alcohol is added to the concentrated mixture. At this time, polysaccharides that are insoluble in alcohol will precipitate to achieve the extraction of polysaccharides. However, since the mixture contains a lot of alcohol, in order to save resources and protect the environment, the alcohol needs to be recovered.

[0004] Currently, alcohol is usually recovered through distillation, that is, the mixed liquid is heated to the boiling point of the alcohol (the water in the mixed liquid has not reached the boiling point at this time), and the alcohol will evaporate and condense to generate higher purity alcohol, which can be reused.

[0005] However, during recycling, it was found that there was still a portion of water in the mixed liquid. When the mixed liquid was heated, part of the heat would act on the water, causing the heat of evaporating alcohol to be unconcentrated, resulting in a relatively slow recovery efficiency.

[0006] Therefore, we propose an alcohol recovery tower for extracting Chinese medicinal materials. Summary of the invention

[0007] The purpose of the present invention is to provide an alcohol recovery tower for extracting traditional Chinese medicine, so as to solve the problem in the prior art that, due to the presence of some water in the mixed liquid, part of the heat acts on the water during the distillation process, resulting in low thermal efficiency of alcohol evaporation and affecting the alcohol recovery efficiency.

[0008] To achieve the above object, the present invention provides the following technical solution: an alcohol recovery tower for extracting Chinese medicinal materials, comprising a tower body, a storage tank and a first condenser, wherein the first condenser and the storage tank are respectively installed on both sides of the tower body, and further comprising:

[0009] A heating mechanism is installed at the bottom of the tower body, and a receiving cavity is formed between the heating mechanism and the bottom of the tower body. The heating mechanism heats the mixed liquid;

[0010] A filter screen is installed inside the heating mechanism; a water absorbent is placed on the filter screen;

[0011] The conveying mechanism is installed on the outside of the tower body, the output end of the conveying mechanism is connected to the top of the filter screen, and the input end of the conveying mechanism is connected to the top of the accommodating cavity;

[0012] The recovery mechanism is installed at the rear of the tower body, the input end of the recovery mechanism is connected to the bottom of the accommodating cavity, and the output end of the recovery mechanism is connected to the top of the heating mechanism.

[0013] Among them, the conveying mechanism includes a first circulation pump fixed on the outside of the tower body, the input end of the first circulation pump is connected to the first conveying pipe, the end of the first conveying pipe is installed with a cross-shaped recovery pipe, the outer wall of the recovery pipe is equidistantly provided with through holes, the input end of the first circulation pump is installed with a second conveying pipe, and the second conveying pipe is connected to the top of the accommodating cavity.

[0014] Among them, the recovery mechanism includes a second circulation pump fixed at the rear end of the tower body, the input end of the second circulation pump is connected to the first circulation pipe, the end of the first circulation pipe away from the first circulation pump is connected to the bottom of the accommodating chamber, the output end of the second circulation pump is connected to the second circulation pipe, and the end of the second circulation pipe away from the second circulation pump is connected to the top of the heating mechanism.

[0015] Among them, the heating mechanism includes an outer tube fixed at the bottom of the tower body, an inner tube fixed inside the outer tube, a heating chamber is formed between the outer tube and the inner tube, a first heating tube and a second heating tube are installed inside the heating chamber, the first heating tube is spirally installed on the side wall of the inner tube, and the second heating tube is spirally installed at the bottom of the inner tube.

[0016] A disc is arranged at the bottom of the accommodating cavity, and a motor is fixed at the bottom of the disc, and the motor drives the disc to rotate.

[0017] Among them, an inclined guide block is fixed at the bottom of the inner tube, a discharge pipe is installed at the lowest point of the guide block, a valve is installed on the discharge pipe, a water level gauge is installed on the outside of the tower body, the water level gauge and the inner tube are interconnected, and the water level gauge and the valve are electrically connected.

[0018] Among them, a second condenser is installed at the rear end of the tower body, an adsorption pump is installed between the second condenser and the tower body, a molecular sieve is installed inside the tower body, and a sealing mechanism is installed on the top of the inner tube, which closes or opens the top of the inner tube.

[0019] The trigger assembly includes an air valve, a push rod, a vertical rod, an air vent, a plunger, a spring, a mounting frame, a connecting rod and a support seat. The air vent is opened in the blocking plate, the plunger is slidably installed in the air vent, the bottom of the spring is fixed to the top of the plunger, the top of the spring is fixed to the mounting frame, and the mounting frame is fixed to the top of the blocking plate;

[0020] The support seat is fixed on the top of the blocking plate, the connecting rod is placed on the top of the support seat, one end of the connecting rod is fixed to the bottom of the top rod, the other end of the connecting rod is fixed to the top of the vertical rod, and the bottom of the vertical rod is fixed to the top of the plunger.

[0021] The connecting rod is arranged in a circular shape, and the telescopic end of the pneumatic push rod is located inside the circular connecting rod.

[0022] Among them, the blocking mechanism includes a blocking plate, a pneumatic push rod and a trigger assembly. An installation groove is opened on the outside of the tower body, the pneumatic push rod is fixed in the installation groove, the blocking plate is fixed at the bottom of the pneumatic push rod, and the trigger assembly is installed between the pneumatic push rod and the blocking plate.

[0023] The present invention has at least the following beneficial effects:

[0024] The desiccant can be used to treat the evaporating mixed liquid, that is, to remove the water in the mixed liquid and increase the proportion of alcohol in the mixed liquid. In the process of heating the mixed liquid by the heating mechanism, it can ensure that most of the heat can act on the alcohol, which can simultaneously improve the thermal efficiency of the heating mechanism and the recovery efficiency of the alcohol. The desiccant that has absorbed water can be dried by the heating mechanism to achieve the reuse of the desiccant, so as to achieve the effect of solving the problem of resource reduction and cost reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall first-view structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the overall structure of the present invention from a second viewing angle;

[0027] Figure 3 It is a front cross-sectional structural schematic diagram of the present invention;

[0028] Figure 4 This is a schematic diagram of the bottom structure of the tower body of the present invention;

[0029] Figure 5 This is a schematic diagram of the inner structure of the bottom of the tower body of the present invention;

[0030] Figure 6 This is a schematic diagram of the pipeline connection structure of the circulation pump of the present invention;

[0031] Figure 7 It is a schematic diagram of the cross-sectional structure of the bottom of the tower body of the present invention;

[0032] Figure 8 It is a schematic diagram of the partial inner structure of the tower body of the present invention;

[0033] Fig. 9 This is a schematic diagram of the plunger installation structure of the present invention;

[0034] Fig.10It is a schematic diagram of the cross-sectional structure of the blocking plate of the present invention.

[0035] In the figure: 1, tower body; 2, first condenser; 3, storage tank; 4, heating mechanism; 5, accommodating chamber; 6, filter screen; 7, conveying mechanism; 8, recovery mechanism; 9, first circulation pump; 10, first conveying pipe; 11, recovery pipe; 12, through hole; 13, second conveying pipe; 14, second circulation pump; 15, first circulation pipe; 16, second circulation pipe; 17, outer tube; 18, inner tube; 19, heating chamber; 20, first heating pipe; 21, second heating pipe; 22. Disc; 23. Motor; 24. Guide block; 25. Discharge pipe; 26. Valve; 27. Water level gauge; 28. Second condenser; 29. ​​Molecular sieve; 30. Sealing mechanism; 31. Blocking plate; 32. Pneumatic push rod; 33. Trigger assembly; 34. Mounting groove; 35. Air valve; 36. Push rod; 37. Vertical rod; 38. Air vent; 39. Plunger; 40. Spring; 41. Mounting frame; 42. Connecting rod; 43. Support seat; 44. Adsorption pump. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Embodiment 1

[0038] See also Figures 1 to 10 The present invention provides a technical solution: an alcohol recovery tower for extracting traditional Chinese medicine, comprising: a tower body 1, a storage tank 3 and a first condenser 2, wherein the storage tank 3 and the first condenser 2 are respectively installed on both sides of the tower body 1, and the bottom of the tower body 1 is a heating area. When the mixed liquid is distilled, the mixed liquid stored in the storage tank 3 enters the bottom of the tower body 1, and the alcohol is volatilized and condensed through the first condenser 2 to realize the recovery and utilization of the alcohol.

[0039] A heating mechanism 4 is installed in the heating area at the bottom of the tower body 1. The heating mechanism 4 includes an inner tube 18 and an outer tube 17. The outer tube 17 and the bottom of the tower body 1 form a accommodating chamber 5, and a heating chamber 19 is formed between the outer tube 17 and the inner tube 18. A first heating tube 20 and a second heating tube 21 are installed inside the heating chamber 19, wherein the first heating tube 20 is spirally installed on the side wall of the inner tube 18, and the second heating tube 21 is vortex-shaped installed at the bottom of the inner tube 18. The mixed liquid can be quickly heated by the first heating tube 20 and the second heating tube 21, which can effectively improve the heating efficiency of the mixed liquid.

[0040] At the same time, a filter screen 6 is fixedly installed at the bottom of the tower body 1, and a water absorbent can be placed on the filter screen 6. In this embodiment, the water absorbent can be realized by hydrogel particles. The hydrogel particles have strong water absorption properties and will not adsorb alcohol in the mixed liquid while absorbing water.

[0041] A conveying mechanism 7 and a recovery mechanism 8 are also installed on the outside of the tower body 1 , wherein the recovery mechanism 8 can recover the water absorbent on the filter screen 6 to the bottom of the accommodating chamber 5 , while the conveying mechanism 7 can place the water absorbent at the bottom of the accommodating chamber 5 back on the filter screen 6 .

[0042] The specific introduction of the conveying mechanism 7 is as follows:

[0043] The conveying mechanism 7 includes a first circulation pump 9 fixed on the outside of the tower body 1, a first conveying pipe 10 is fixed to the input end of the first circulation pump 9, and the other end of the first conveying pipe 10 is connected to a cross-shaped recovery pipe 11, a plurality of through holes 12 arranged at equal intervals are opened on the outer wall of the recovery pipe 11, and a second conveying pipe 13 is connected to the output end of the first circulation pump 9, and the second conveying pipe 13 passes through the tower body 1 and enters the top of the accommodating chamber 5. Therefore, when the first circulation pump 9 is working, the through holes 12 on the recovery pipe 11 will absorb the water absorbent on the filter screen 6 under the negative pressure of the first circulation pump 9, and the cross-shaped recovery pipe 11 can better absorb and recover the water absorbent on the filter screen 6. To reduce the residual amount of the water absorbent on the filter screen 6, the water absorbent can be transported to the accommodating chamber 5 via the first circulation pump 9 and the second delivery pipe 13. After the water absorbent enters the accommodating chamber 5, the heating mechanism 4 will also generate heat in the accommodating chamber 5 when it is working. Under the action of high temperature, the used water absorbent can be dried to facilitate the subsequent reuse of the water absorbent, thereby reducing costs. At the same time, the heat of the heating mechanism 4 is more fully utilized. When the water absorbent is dried, the temperature of the heating chamber 19 will be lower than the boiling point of alcohol, while the thermal imbalance temperature of the hydrogel particles is much greater than the boiling point of alcohol. Therefore, when the hydrogel particles are thermally dried, the influence of temperature on their lifespan can be avoided.

[0044] It should be noted that ventilation holes (not shown in the figure) are provided on the outer wall of the accommodating cavity 5. The ventilation holes can disperse the water vapor generated during the drying process of the hydrogel, and can also increase the flow of air in the accommodating cavity, making it more convenient to dry the water absorbent.

[0045] The recovery mechanism 8 is realized by a second circulation pump 14 fixed on the outside of the tower body 1, and the input end of the second circulation pump 14 is connected to the first circulation pipe 15, and the other end of the first circulation pipe 15 is connected to the bottom of the accommodating chamber 5, and the output end of the second circulation pump 14 is connected to the second circulation pipe 16, and the ends of the second circulation pipe 16 pass through the accommodating chamber 5 and the heating chamber 19 in turn to enter the interior of the inner tube 18, and the outlet of the second circulation pipe 16 is located at the top of the filter 6. Therefore, when the second circulation pump 14 is working, the water absorbent located at the bottom of the accommodating chamber 5 can be extracted through the first circulation pipe 15, and the dried water absorbent can be placed on the filter 6 through the second circulation pipe 16 for reuse.

[0046] It should be added that a disc 22 is provided at the bottom of the accommodating cavity 5, and a motor 23 is fixed to the bottom of the disc 22. Therefore, when the motor 23 rotates, it can drive the disc 22 to rotate. Then, when the water-absorbing agent enters the accommodating cavity, the disc 22 can be driven to rotate. At this time, the water-absorbing agent will fall on the rotating disc 22. Therefore, the water-absorbing agent will not fall at a fixed position in the accommodating cavity 5, but will be evenly distributed inside the accommodating cavity 5. When the heating mechanism 4 dries the water-absorbing agent, it can ensure that the desiccant is heated evenly, thereby improving the drying effect of the water-absorbing agent.

[0047] The bottom of the inner cylinder 18 is fixed with an inclined guide block 24, and a discharge pipe 25 is installed at the bottom of the guide block 24. A valve 26 is installed on the discharge pipe 25. At the same time, a water level gauge 27 is installed at the front end of the tower body 1. The water level gauge 27 is electrically connected to the valve 26. The water level gauge 27 can be connected to the inner cylinder 18. When the height of the mixed liquid in the inner cylinder 18 changes, the liquid level of the water level gauge 27 connected thereto will also change, thereby monitoring the liquid level change in the inner cylinder 18. Therefore, when the water level gauge 27 detects that the liquid level in the inner cylinder 18 reaches the threshold, the water level gauge 27 will be turned off. The level meter 27 feeds back the liquid level change to the controller, and the controller controls the valve 26 to open. At this time, the remaining liquid will be discharged through the discharge pipe 25. The function of the guide block 24 is to be able to fully discharge the mixed liquid in the inner tube 18. When the threshold of the water level meter 27 is set, the threshold can be adjusted to a small value, that is, when the mixed liquid in the inner tube 18 is relatively low, most of the remaining mixed liquid is residual Chinese medicine components in water. If it continues to be heated, the Chinese medicine components will gradually become viscous and adhere to the outer wall of the inner tube 18, affecting the heat conduction efficiency of the heating mechanism 4.

[0048] Before the mixed liquid is heated, the water absorbent is placed on the filter 6, and the water absorbent absorbs the water in the mixed liquid. At the same time, the heating mechanism 4 heats the mixed liquid. During the heating process, the liquid level of the mixed liquid gradually decreases. When the liquid level of the mixed liquid is lower than the filter 6, the water absorbent on the filter 6 can be transported by the conveying mechanism 7. The action of the conveying mechanism 7 is derived from the water level change detected by the water level gauge 27. The water level gauge 27 feeds back the water level change to the first circulation pump 9, and the mixed liquid below the filter 6 will continue to evaporate. When it evaporates to a low liquid level, the valve 26 opens to discharge the residual mixed liquid to prevent it from adhering to the inner cylinder 18 and affecting the heat conduction efficiency of the heating mechanism 4.

[0049] Embodiment 2

[0050] In the first embodiment, the temperature of the heating mechanism 4 during heating is higher than the boiling point of alcohol but lower than the boiling point of water, while in the present embodiment, the heating temperature of the heating mechanism 4 reaches the boiling point of water.

[0051] At the same time, a second condenser 28 is fixedly installed at the rear end of the tower body 1, and an adsorption pump 44 is installed between the tower body 1 and the second condenser 28, and a molecular sieve 29 is installed inside the tower body 1. The molecular sieve 29 can separate water and alcohol. Smaller water molecules can pass through the molecular sieve 29, while larger alcohol molecules cannot pass through the molecular sieve 29.

[0052] A blocking mechanism 30 is installed at the top of the inner tube 18. The blocking mechanism 30 can block or open the inner tube 18. The blocking mechanism 30 includes a blocking plate 31 arranged at the top of the inner tube 18. The blocking plate 31 is adapted to the opening at the top of the inner tube 18. When the blocking plate 31 is connected to the opening of the inner tube 18, a relatively sealed environment is formed between the inner tube 18 and the blocking plate 31, which can isolate the space inside and outside the inner tube 18.

[0053] An installation groove 34 is provided on the outer side of the tower body 1, and a pneumatic push rod 32 is fixed in the installation groove 34. The bottom of the pneumatic push rod 32 is slidably connected to the tower body 1, and the bottom of the pneumatic push rod 32 is fixedly connected to the blocking plate 31. The lifting and lowering of the blocking plate 31 is achieved by the extension and retraction of the pneumatic push rod 32. When the pneumatic push rod 32 is extended downward, the blocking plate 31 is connected to the top of the inner tube 18, so that the inner tube 18 is closed. When the pneumatic push rod 32 is extended upward, the blocking plate 31 is separated from the top of the inner tube 18, so that the inner tube 18 is open.

[0054] Therefore, through the above technical solution, when the heating mechanism 4 heats the mixed liquid in the inner cylinder 18, both water and alcohol will evaporate, and the water vapor and alcohol molecules generated by the evaporation will move upward along the height direction of the tower body 1. When moving to the position of the molecular sieve 29, the molecular sieve 29 will separate the water molecules and the alcohol molecules. The water molecules passing through the molecular sieve 29 will enter the first condenser 2 and condense into water, while the alcohol molecules that cannot pass through the molecular sieve 29 will gradually accumulate at the bottom of the molecular sieve 29. At this time, the pneumatic push rod 32 moves, driving the blocking plate 31 and the opening at the top of the inner cylinder 18 to close. The inner tube 18 is connected at the mouth so that the inner tube 18 is closed, and the water molecules and alcohol molecules generated by heating are temporarily stored in the inner tube 18. After the inner tube 18 is closed, the water molecules between the molecular sieve 29 and the top of the inner tube 18 will gradually pass through the molecular sieve 29, and the alcohol molecules that cannot pass through the molecular sieve 29 will accumulate at the bottom of the molecular sieve 29, and new water vapor cannot be generated after the plugging plate 31 is blocked. At this time, the adsorption pump 44 works. When the adsorption pump 44 works, the alcohol molecules inside the tower body 1 are transported to the second condenser 28, and condensed into alcohol, thereby realizing the separation of alcohol and water.

[0055] After the alcohol is completely adsorbed by the adsorption pump 44 , the pneumatic push rod 32 drives the blocking plate 31 to separate from the inner tube 18 , and the water molecules and alcohol molecules temporarily stored in the inner tube 18 are separated again through the molecular sieve 29 .

[0056] The action timing of the pneumatic push rod 32 can be operated at a fixed time, that is, after a certain period of time, the adsorption pump 44 will adsorb and condense the separated alcohol. At the same time, in the present embodiment, it is also realized by the trigger component 33. The trigger component 33 includes an air valve 35. The air valve 35 controls the extension and retraction of the pneumatic push rod 32. When the button of the air valve 35 is pressed, the cylinder extends upward, so that the blocking plate 31 is separated from the inner cylinder 18. When the button is released, the pneumatic push rod 32 extends downward, so that the blocking plate 31 closes the inner cylinder 18.

[0057] At the same time, an air vent 38 is opened inside the blocking plate 31, and a plunger 39 is slidably installed in the air vent 38. A spring 40 is fixed to the top of the plunger 39, and a mounting frame 41 is fixed to the top of the spring 40. The mounting frame 41 is fixedly installed on the blocking plate 31. A vertical rod 37 is also fixed to the top of the plunger 39, and a connecting rod 42 is fixed to the top of the vertical rod 37. The connecting rod 42 is arranged in a U-shaped structure. The telescopic end of the pneumatic push rod 32 is located on the inner side of the U-shaped structure to ensure that the telescopic end is not affected when it is telescoped, and a support seat 43 is arranged at the bottom of the connecting rod 42 to support the connecting rod 42. At the same time, a push rod 36 is fixed to the other end of the connecting rod 42, and the top of the push rod 36 is connected to the button of the air valve 35.

[0058] Through the above technical solution, when the blocking plate 31 is connected to the inner tube 18, the inner tube 18 is continuously heated to vaporize the water and alcohol and gradually increase the pressure in the inner tube 18. When the pressure increases, the plunger 39 is driven to move upward and the spring 40 is compressed. When the plunger 39 moves upward, the vertical rod 37, the connecting rod 42 and the push rod 36 are driven upward in turn. When the push rod 36 moves upward, the button of the air valve 35 is pressed, so that the pneumatic push rod 32 is extended. The plugging plate 31 is retracted to separate from the inner tube 18. When the pressure in the inner tube 18 is released, the plunger 39 is reset after the pressure is released. The plunger 39 separates the push rod 36 from the air valve 35 button, so that the pneumatic push rod 32 is retracted again to connect the plugging plate 31 with the inner tube 18. After the plugging plate 31 is connected to the inner tube 18, the adsorption pump 44 starts to work to adsorb and condense the alcohol molecules. During the condensation process, the pressure in the inner tube 18 continues to increase, driving the pneumatic push rod 32 to move and release the pressure, thus circulating.

[0059] In summary, when water and alcohol are evaporated at the same time, the condensed water can also be utilized, which can improve the utilization rate of the mixed liquid. Secondly, due to the increase in the heating temperature of the alcohol, the efficiency is higher when evaporating the alcohol. Then, when the alcohol is condensed, the adsorption position contains fewer water molecules in the adsorption space due to the action of the molecular sieve 29 and the blocking mechanism 30, which can improve the purity of the alcohol recovery. Finally, the path through which the alcohol flows during the recovery process is shorter, and it can be recovered at the bottom of the tower body 1. Therefore, it can effectively avoid the escape of alcohol vapor when entering the condensation equipment, which can further improve the efficiency of alcohol recovery.

[0060] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0061] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An alcohol recovery tower for extracting Chinese medicinal materials, comprising a tower body (1), a storage tank (3) and a first condenser (2), wherein the first condenser (2) and the storage tank (3) are respectively installed on both sides of the tower body (1), characterized in that: Also includes: A heating mechanism (4), the heating mechanism (4) being installed at the bottom of the tower body (1), a receiving cavity (5) being formed between the heating mechanism (4) and the bottom of the tower body (1), and the heating mechanism (4) heating the mixed liquid; A filter screen (6), the filter screen (6) being installed inside the heating mechanism (4); a water absorbent being placed on the filter screen (6); A conveying mechanism (7), the conveying mechanism (7) being installed outside the tower body (1), the output end of the conveying mechanism (7) being connected to the top of the filter screen (6), and the input end of the conveying mechanism (7) being connected to the top of the accommodating chamber (5); A recovery mechanism (8), the recovery mechanism (8) being installed at the rear of the tower body (1), the input end of the recovery mechanism (8) being connected to the bottom of the accommodating chamber (5), and the output end of the recovery mechanism (8) being connected to the top of the heating mechanism (4); The conveying mechanism (7) comprises a first circulation pump (9) fixed on the outside of the tower body (1); the input end of the first circulation pump (9) is connected to a first conveying pipe (10); a cross-shaped recovery pipe (11) is installed at the end of the first conveying pipe (10); through holes (12) are equidistantly provided on the outer wall of the recovery pipe (11); a second conveying pipe (13) is installed at the input end of the first circulation pump (9); and the second conveying pipe (13) is connected to the top of the accommodating chamber (5); The recovery mechanism (8) comprises a second circulation pump (14) fixed at the rear end of the tower body (1); the input end of the second circulation pump (14) is connected to a first circulation pipe (15); one end of the first circulation pipe (15) away from the first circulation pump (9) is connected to the bottom of the accommodating chamber (5); the output end of the second circulation pump (14) is connected to a second circulation pipe (16); one end of the second circulation pipe (16) away from the second circulation pump (14) is connected to the top of the heating mechanism (4); The heating mechanism (4) comprises an outer cylinder (17) fixed to the bottom of the tower body (1), an inner cylinder (18) fixed inside the outer cylinder (17), a heating chamber (19) formed between the outer cylinder (17) and the inner cylinder (18), a first heating tube (20) and a second heating tube (21) installed inside the heating chamber (19), the first heating tube (20) being installed in a spiral shape on the side wall of the inner cylinder (18), and the second heating tube (21) being installed in a spiral shape on the bottom of the inner cylinder (18).

2. The alcohol recovery tower for extracting Chinese medicinal materials according to claim 1, characterized in that: A disc (22) is provided at the bottom of the accommodating cavity (5), and a motor (23) is fixed to the bottom of the disc (22), wherein the motor (23) drives the disc (22) to rotate.

3. The alcohol recovery tower for extracting Chinese medicinal materials according to claim 1, characterized in that: A guide block (24) arranged obliquely is fixed at the bottom of the inner tube (18); a discharge pipe (25) is installed at the lowest point of the guide block (24); a valve (26) is installed on the discharge pipe (25); a water level gauge (27) is installed on the outer side of the tower body (1); the water level gauge (27) and the inner tube (18) are in communication with each other; and the water level gauge (27) and the valve (26) are electrically connected.

4. The alcohol recovery tower for extracting Chinese medicinal materials according to claim 3, characterized in that: A second condenser (28) is installed at the rear end of the tower body (1), an adsorption pump (44) is installed between the second condenser (28) and the tower body (1), a molecular sieve (29) is installed inside the tower body (1), and a blocking mechanism (30) is installed at the top of the inner tube (18), and the blocking mechanism (30) closes or opens the top of the inner tube (18).

5. The alcohol recovery tower for extracting Chinese medicinal materials according to claim 4, characterized in that: The blocking mechanism (30) comprises a blocking plate (31), a pneumatic push rod (32) and a trigger assembly (33); a mounting groove (34) is provided on the outer side of the tower body (1); the pneumatic push rod (32) is fixed in the mounting groove (34); the blocking plate (31) is fixed at the bottom of the pneumatic push rod (32); and the trigger assembly (33) is installed between the pneumatic push rod (32) and the blocking plate (31).

6. The alcohol recovery tower for extracting Chinese medicinal materials according to claim 5, characterized in that: The trigger assembly (33) comprises an air valve (35), a push rod (36), a vertical rod (37), an air vent (38), a plunger (39), a spring (40), a mounting frame (41), a connecting rod (42) and a support seat (43); the air vent (38) is opened in the blocking plate (31); the plunger (39) is slidably mounted in the air vent (38); the bottom of the spring (40) is fixed to the top of the plunger (39); the top of the spring (40) is fixed to the mounting frame (41); and the mounting frame (41) is fixed to the top of the blocking plate (31); The support seat (43) is fixed on the top of the blocking plate (31), the connecting rod (42) is placed on the top of the support seat (43), one end of the connecting rod (42) is fixed to the bottom of the top rod (36), the other end of the connecting rod (42) is fixed to the top of the vertical rod (37), and the bottom of the vertical rod (37) is fixed to the top of the plunger (39).

7. The alcohol recovery tower for extracting Chinese medicinal materials according to claim 6, characterized in that: The connecting rod (42) is arranged in a circular shape, and the telescopic end of the pneumatic push rod (32) is located inside the circular connecting rod (42).

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