CN217613909U

CN217613909U - Device for recovering light wine from alcohol fermentation tail gas

Info

Publication number: CN217613909U
Application number: CN202221692331.2U
Authority: CN
Inventors: 金星屹; 李业; 王淋; 李坤
Original assignee: CHONGQING RISING GAS CO LTD
Current assignee: CHONGQING RISING GAS CO LTD
Priority date: 2022-06-30
Filing date: 2022-06-30
Publication date: 2022-10-21
Anticipated expiration: 2032-06-30

Abstract

The utility model relates to the technical field of alcohol fermentation byproduct recovery, in particular to an alcohol fermentation tail gas recovery light wine device, which comprises a base, wherein the top of the base is fixedly connected with a supporting plate, the side wall of the supporting plate is fixedly connected with an absorption barrel, the bottom of the absorption barrel is penetrated and fixedly connected with an air inlet pipe, one end of the air inlet pipe, which is positioned in the absorption barrel, is fixedly connected with a waterproof breathable film, and the other end of the air inlet pipe is connected with an air extraction pump; the top of the absorption barrel is penetrated and rotatably connected with a water inlet pipe, the bottom end of the water inlet pipe is fixedly connected with an atomizing nozzle, and the top end of the water inlet pipe is inserted with a water outlet pipe; the side wall of the supporting plate is fixedly connected with a washing liquid tank, and the top end of the water outlet pipe is fixedly connected to the bottom of the washing liquid tank and communicated with the inside of the washing liquid tank; make washing liquid and tail gas abundant contact for alcohol in the tail gas dissolves in the washing liquid, realizes the recovery to alcohol in the tail gas, is favorable to improving the treatment effeciency to the tail gas.

Description

Light wine device is retrieved to alcohol fermentation tail gas

Technical Field

The utility model relates to an alcohol fermentation by-product retrieves technical field, specifically is an alcohol fermentation tail gas retrieves light wine device.

Background

In the alcohol production process, the yeast generates alcohol and carbon dioxide through anaerobic respiration, and the light wine refers to alcohol carried in carbon dioxide gas, so that in order to reduce alcohol loss, the tail gas of alcohol fermentation cannot be directly discharged, and the light wine in the tail gas of alcohol fermentation needs to be recovered.

The prior art also discloses a technical scheme for recovering alcohol fermentation tail gas, for example, a patent No. CN201820130638.0 discloses a light wine recovery device, which comprises a fermentation tank, a sealed water tank, a washing tower, a first circulating pump, a second circulating pump, a light wine recovery tank and a deslagging pipe; the device realizes the absorption of alcohol in the gas by sending the mixed gas generated in the fermentation tank into the washing tower from the bottom of the washing tower and sending the washing water into the washing tower from the top of the washing tower.

However, when the device is used, because the internal structure of the washing tower is simple and no homogenization structure is arranged, the washing water cannot be fully contacted with the mixed gas, and the treatment efficiency of the mixed gas is influenced; therefore, the device for recovering the weak liquor from the alcohol fermentation tail gas is provided aiming at the problems.

SUMMERY OF THE UTILITY MODEL

In order to make up the deficiency of the prior art, at least one problem among the solution aforesaid, the utility model provides an alcohol fermentation tail gas retrieves light wine device.

The utility model provides a technical scheme that its technical problem adopted is: the device for recovering the light wine from the alcohol fermentation tail gas comprises a base, wherein a supporting plate is fixedly connected to the top of the base, an absorption barrel is fixedly connected to the side wall of the supporting plate, the bottom of the absorption barrel is penetrated and fixedly connected with an air inlet pipe, a waterproof breathable film is fixedly connected to one end, located in the absorption barrel, of the air inlet pipe, and the other end of the air inlet pipe is connected with an air suction pump; the top of the absorption barrel is connected with a water inlet pipe in a penetrating and rotating manner, the bottom end of the water inlet pipe is fixedly connected with an atomizing nozzle, and the top end of the water inlet pipe is inserted with a water outlet pipe; the lateral wall rigid coupling of backup pad has the washing liquid case, the top rigid coupling of outlet pipe is in the bottom of washing liquid case, and communicates with the washing liquid incasement portion.

Preferably, the dorsal part rigid coupling of backup pad has a motor, the output shaft rigid coupling of a motor has a pole No. one, the one end rigid coupling that a pole is located the adsorption tank has the worm, the one end cover that the inlet tube is located the adsorption tank is established and the rigid coupling has the worm wheel, worm wheel and worm intermeshing.

Preferably, the bottom rigid coupling of atomizer has No. two poles, the outer wall rigid coupling of No. two poles has a plurality of stirring vane.

Preferably, the outer side wall of the absorption barrel is fixedly connected with a pressure gauge, and the input end of the pressure gauge extends into the absorption barrel; the top rigid coupling of base has the collection box, through arranging the material pipe intercommunication between collection box and the absorption bucket.

Preferably, a filter screen is fixedly connected inside the recovery box; the outer side wall of the recycling box is fixedly connected with a first plate, the top of the first plate is fixedly connected with a second motor, an output shaft of the second motor is fixedly connected with a threaded rod, one end of the threaded rod, which is positioned in the recycling box, is sleeved with a second plate, and the second plate is slidably connected with the inner side wall of the top of the recycling box; and a cleaning brush is fixedly connected to one side of the second plate far away from the second motor.

Preferably, a discharge groove is formed in one side, far away from the second motor, of the recovery box; a rectangular block is connected in the discharge groove in a sliding manner, a rubber layer is fixedly connected to one side, which is in contact with the discharge groove, of the rectangular block, and the inner part of the rubber layer is arranged in a hollow manner; a cavity is formed in the rectangular block, an air bag is fixedly connected in the cavity, a first spring is fixedly connected in the air bag, and the air bag is communicated with the interior of the rubber layer; a pressing plate is connected in the cavity in a sliding manner; the rectangular block penetrates through one side close to the threaded rod and is connected with a push rod in a sliding mode, one end, located in the cavity, of the push rod is fixedly connected to the pressing plate, and the other end of the push rod is fixedly connected with the push plate; a second spring is fixedly connected between the pressure plate and the inner wall of the cavity; a fourth rod is fixedly connected to one side, close to the rectangular block, of the second plate; the lateral wall rigid coupling of collection box has L shape pole, and the one end of L shape pole runs through and sliding connection and rectangular block to contact with the clamp plate.

Preferably, one end of the threaded rod, which is positioned outside the recycling bin, is sleeved and fixedly connected with a driving belt wheel; one side of collection box runs through and rotates and is connected with No. five poles, the equidistance rigid coupling of one end that No. five poles are located the collection box has the puddler, and the other end rigid coupling has from the driven pulleys, be connected through the belt between driving pulley and the from the driven pulleys.

Preferably, the inner side wall of the bottom of the recovery box is fixedly connected with an electric heating wire; a collecting tank is fixedly connected to the top of the base; the collecting tank is communicated with the recovery tank through a pipeline.

The utility model discloses an useful part lies in:

1. the utility model drives the worm to rotate through the first motor, so that the worm drives the worm wheel to rotate, and further the worm wheel drives the water inlet pipe to rotate, the atomizing nozzle rotates along with the water inlet pipe, the atomizing nozzle sprays the washing liquid more uniformly inside the absorption barrel, the tail gas is fully contacted with the washing liquid, and the treatment efficiency of the tail gas is improved;

2. the utility model discloses in, after the inside washing liquid of absorption bucket flowed into the collection box, will be realized the filtration to the waste residue by the filter screen, drive the threaded rod through No. two motors and rotate for the threaded rod drives No. two boards and slides at the collection box inner wall, and realizes the clearance to filter screen top waste residue through the cleaning brush, avoids the phenomenon that the filter screen blockked up to appear.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor.

FIG. 1 is a schematic overall structure diagram of a first perspective in a first embodiment;

FIG. 2 is a schematic overall structure diagram of a second perspective in the first embodiment;

FIG. 3 is an enlarged view of a portion of the area A in FIG. 1;

FIG. 4 is a schematic partial cross-sectional view illustrating a structure according to a first embodiment;

FIG. 5 is a partial enlarged view of the area B in FIG. 4;

FIG. 6 is a partial enlarged view of the area C in FIG. 4;

fig. 7 is a drawing of the second embodiment.

In the figure: 1. a base; 2. a support plate; 3. an absorption barrel; 4. an air inlet pipe; 6. a water inlet pipe; 7. an atomizing spray head; 8. a water outlet pipe; 9. a washing liquid tank; 10. a first motor; 11. a first rod; 12. a worm; 13. a worm gear; 14. a second rod; 15. a stirring blade; 16. a pressure gauge; 17. a recycling bin; 18. a discharge pipe; 19. a filter screen; 20. a first board; 21. a second motor; 22. a threaded rod; 23. a second plate; 24. a cleaning brush; 25. a rectangular block; 26. a rubber layer; 27. an air bag; 28. pressing a plate; 29. a push rod; 30. pushing the plate; 31. a fourth rod; 32. an L-shaped rod; 33. a driving pulley; 34. a fifth rod; 35. a stirring rod; 36. an electric heating wire; 37. collecting tank; 38. a housing; 39. a driven pulley.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Example one

Referring to fig. 1-6, the device for recovering weak liquor from alcohol fermentation tail gas comprises a base 1, wherein a supporting plate 2 is fixedly connected to the top of the base 1, an absorption barrel 3 is fixedly connected to the side wall of the supporting plate 2, an air inlet pipe 4 is fixedly connected to the bottom of the absorption barrel 3 in a penetrating manner, a waterproof breathable film is fixedly connected to one end of the air inlet pipe 4 located in the absorption barrel 3, and the other end of the air inlet pipe is connected with an air suction pump; the top of the absorption barrel 3 is connected with a water inlet pipe 6 in a penetrating and rotating way, the bottom end of the water inlet pipe 6 is fixedly connected with an atomizing nozzle 7, and the top end is inserted with a water outlet pipe 8; the side wall of the supporting plate 2 is fixedly connected with a washing liquid tank 9, and the top end of the water outlet pipe 8 is fixedly connected to the bottom of the washing liquid tank 9 and communicated with the inside of the washing liquid tank 9; when the device works, the air pump is started, the alcohol fermentation tail gas is sent into the absorption barrel 3 from the air inlet pipe 4, meanwhile, the temperature of the washing liquid in the washing liquid box 9 is adjusted, the temperature of the washing liquid is about zero, the valve at the position of the water outlet pipe 8 is opened, the washing liquid in the washing liquid box 9 sequentially enters the absorption barrel 3 from the water outlet pipe 8 and the water inlet pipe 6 and is sprayed out from the atomizing spray head 7, the washing liquid is fully contacted with the tail gas, the alcohol in the tail gas is dissolved in the washing liquid, the recovery of the alcohol in the tail gas is realized, and the treatment efficiency of the tail gas is improved; wherein, the water inlet pipe 6 and the absorption barrel 3 are sealed by adopting carbon ring sealing or brush sealing and other modes, so that the tail gas is prevented from leaking from the positions; the temperature of the washing liquid is selected to be about zero, so that the amount of carbon dioxide dissolved in water can be reduced; wherein the air pump is communicated with the alcohol fermentation tank.

A first motor 10 is fixedly connected to the back side of the supporting plate 2, a first rod 11 is fixedly connected to an output shaft of the first motor 10, a worm 12 is fixedly connected to one end, located in the absorption box, of the first rod 11, a worm wheel 13 is sleeved and fixedly connected to one end, located in the absorption box, of the water inlet pipe 6, and the worm wheel 13 and the worm 12 are meshed with each other; the during operation drives a pole 11 and worm 12 through a motor 10 and rotates for worm 12 drives worm wheel 13 and rotates, and then makes worm wheel 13 drive inlet tube 6 and rotate, makes atomizer 7 rotate along with inlet tube 6, makes atomizer 7 spout the washing liquid more evenly inside absorption bucket 3, makes tail gas and washing liquid fully contact, improves the treatment effeciency to tail gas.

A second rod 14 is fixedly connected to the bottom of the atomizing nozzle 7, and a plurality of stirring blades 15 are fixedly connected to the outer wall of the second rod 14; during operation, after intake pipe 4 is submerged to the washing liquid of absorption bucket 3, drive No. two poles 14 and stirring vane 15 through atomizer 7 and rotate, realize the stirring to the washing liquid for tail gas can fully contact with the washing liquid after emerging from the tip of intake pipe 4, improves the absorption effect to alcohol in the tail gas.

The outer side wall of the absorption barrel 3 is fixedly connected with a pressure gauge 16, and the input end of the pressure gauge 16 extends into the absorption barrel 3; a recovery box 17 is fixedly connected to the top of the base 1, and the recovery box 17 is communicated with the absorption barrel 3 through a discharge pipe 18; in operation, the pressure gauge 16 is used for detecting the pressure inside the absorption barrel 3, and when the pressure inside the absorption barrel 3 reaches a predetermined value, the valve on the discharge pipe 18 is opened, so that the water inside the absorption barrel 3 enters the recovery tank 17 from the discharge pipe 18, and the residual gas inside the absorption barrel 3 is pumped out.

A filter screen 19 is fixedly connected inside the recovery box 17; a first plate 20 is fixedly connected to the outer side wall of the recycling box 17, a second motor 21 is fixedly connected to the top of the first plate 20, a threaded rod 22 is fixedly connected to an output shaft of the second motor 21, a second plate 23 is sleeved on one end, located in the recycling box 17, of the threaded rod 22, and the second plate 23 is slidably connected to the inner side wall of the top of the recycling box 17; a cleaning brush 24 is fixedly connected to one side of the second plate 23 far away from the second motor 21; during operation, the inside washing liquid of absorption bucket 3 flows into collection box 17 after, will realize the filtration to the waste residue by filter screen 19, drives threaded rod 22 through No. two motor 21 and rotates for threaded rod 22 drives No. two boards 23 and slides at collection box 17 inner wall, and realizes the clearance to filter screen 19 top waste residue through cleaning brush 24, avoids filter screen 19 the phenomenon of jam to appear.

A discharge groove is formed in one side, far away from the second motor 21, of the recovery box 17; a rectangular block 25 is connected in the discharge groove in a sliding manner, a rubber layer 26 is fixedly connected to one side, in contact with the discharge groove, of the rectangular block 25, and the rubber layer 26 is arranged in a hollow manner; a cavity is arranged in the rectangular block 25, an air bag 27 is fixedly connected in the cavity, a first spring is fixedly connected in the air bag 27, and the air bag 27 is communicated with the interior of the rubber layer 26; a pressure plate 28 is slidably connected in the cavity; the rectangular block 25 penetrates through one side close to the threaded rod 22 and is connected with a push rod 29 in a sliding mode, one end, located in the cavity, of the push rod 29 is fixedly connected to a press plate 28, and the other end of the push rod 29 is fixedly connected with a push plate 30; a second spring is fixedly connected between the pressure plate 28 and the inner wall of the cavity; a fourth rod 31 is fixedly connected to one side, close to the rectangular block 25, of the second plate 23; an L-shaped rod 32 is fixedly connected to the outer side wall of the recycling box 17, and one end of the L-shaped rod 32 penetrates through and is connected with the rectangular block 25 in a sliding mode and is in contact with the pressing plate 28; when the second plate 23 moves towards the direction close to the rectangular block 25, the fourth rod 31 extrudes the rectangular block 25, the rectangular block 25 slides along the inner wall of the discharge groove, meanwhile, the L-shaped rod 32 pushes the pressing plate 28, the second spring is continuously compressed, and after the air bag 27 is not extruded by the pressing plate 28, the air bag is quickly restored to the original state due to the action of the first spring, so that the rubber layer 26 is not bulged any more, the rectangular block 25 is conveniently pushed, and when the rectangular block 25 is opened, the cleaning brush 24 pushes waste residues out of the discharge groove; the elastic coefficient of the second spring is greater than that of the first spring; wherein the L-shaped rod 32 is provided with a telescopic rod, and the elastic coefficient of the third spring inside the telescopic rod is larger than that of the second spring.

One end of the threaded rod 22, which is positioned outside the recycling box 17, is sleeved and fixedly connected with a driving belt pulley 33; one side of the recovery box 17 is connected with a fifth rod 34 in a penetrating and rotating mode, one end, located in the recovery box 17, of the fifth rod 34 is fixedly connected with a stirring rod 35 at an equal distance, the other end of the fifth rod is fixedly connected with a driven belt wheel 39, and the driving belt wheel 33 is connected with the driven belt wheel 39 through a belt; during operation, after No. two motors 21 drive threaded rod 22 and rotate, will make driving pulley 33 pass through the effect of belt, band pulley driven pulleys 39 rotates, and then makes No. five pole 34 drive puddler 35 and rotate, realizes the stirring to the inside washing liquid of collection box 17 for the washing liquid is fully heated.

The inner side wall of the bottom of the recovery box 17 is fixedly connected with an electric heating wire 36; a collecting tank 37 is fixedly connected to the top of the base 1; the collecting tank 37 is communicated with the recovery tank 17 through a pipeline; in operation, after the heating wire 36 is powered on, the cleaning solution is heated, when the temperature reaches the boiling point of alcohol, the alcohol will volatilize and be separated from the cleaning solution, and the volatilized alcohol enters the collecting tank 37.

Example two

Referring to fig. 7, as another embodiment of the present invention, in a first comparative example, a shell 38 is disposed on the top of the base 1, and the shell 38 is located right below the outlet of the discharge chute; during operation, through setting up casing 38 for the collection of realization to the waste residue avoids the waste residue to drop on base 1 top, and leads to clearing up troublesome problem, is favorable to improving the whole result of use of this device.

The working principle is as follows: when the existing recovery device is used, because the internal structure of the washing tower is simple and no homogenization structure is arranged, the washing water cannot be fully contacted with the mixed gas, and the treatment efficiency of the mixed gas is influenced, the device is arranged, when the device is used, an air suction pump is started, the alcohol fermentation tail gas is sent into the absorption barrel 3 from the air inlet pipe 4, meanwhile, the temperature of the washing liquid in the washing liquid box 9 is adjusted, the temperature of the washing liquid is about zero, a valve at the water outlet pipe 8 is opened, the washing liquid in the washing liquid box 9 sequentially enters the absorption barrel 3 from the water outlet pipe 8 and the water inlet pipe 6 and is sprayed out from the atomizing spray head 7, the washing liquid is fully contacted with the tail gas, the alcohol in the tail gas is dissolved in the washing liquid, and the alcohol in the tail gas is recovered; the first motor 10 drives the first rod 11 and the worm 12 to rotate, so that the worm 12 drives the worm wheel 13 to rotate, the worm wheel 13 drives the water inlet pipe 6 to rotate, the atomizer 7 rotates along with the water inlet pipe 6, the atomizer 7 sprays the cleaning solution into the absorption barrel 3 more uniformly, the tail gas is in full contact with the cleaning solution, and the treatment efficiency of the tail gas is improved; when the gas inlet pipe 4 is submerged by the cleaning solution in the absorption barrel 3, the second rod 14 and the stirring blade 15 are driven to rotate through the atomizing nozzle 7, so that the cleaning solution is stirred, the tail gas can be fully contacted with the cleaning solution after emerging from the end part of the gas inlet pipe 4, and the absorption effect on alcohol in the tail gas is improved;

the pressure gauge 16 is used for detecting the pressure inside the absorption barrel 3, and when the pressure inside the absorption barrel 3 reaches a preset value, a valve on the discharge pipe 18 is opened, so that the water inside the absorption barrel 3 enters the recovery tank 17 from the discharge pipe 18, and the residual gas inside the absorption barrel 3 is pumped out; after the washing liquid in the absorption barrel 3 flows into the recycling box 17, the filter screen 19 is used for filtering waste residues, the threaded rod 22 is driven to rotate by the second motor 21, the threaded rod 22 drives the second plate 23 to slide on the inner wall of the recycling box 17, the cleaning brush 24 is used for cleaning the waste residues at the top of the filter screen 19, when the second plate 23 moves towards the direction close to the rectangular block 25, the fourth rod 31 is used for extruding the rectangular block 25, the rectangular block 25 slides along the inner wall of the discharging groove, meanwhile, the L-shaped rod 32 is used for pushing the pressing plate 28, the second spring is continuously compressed, and after the air bag 27 is not extruded by the pressing plate 28, the rubber layer 26 is quickly restored to the original shape due to the action of the first spring, so that the rubber layer 26 does not bulge any more, the rectangular block 25 is conveniently pushed, and when the rectangular block 25 is opened, the cleaning brush 24 is used for pushing the waste residues out of the discharging groove; after the electric heating wire 36 is electrified, the washing liquid is heated, when the temperature reaches the boiling point of alcohol, the alcohol is volatilized and separated from the washing liquid, and the volatilized alcohol enters the collecting tank 37; after No. two motors 21 drive threaded rod 22 and rotate, will make driving pulley 33 pass through the effect of belt, band pulley driven pulley 39 rotates, and then makes No. five pole 34 drive puddler 35 and rotate, realizes the stirring to the inside washing liquid of collection box 17 for the washing liquid is fully heated.

The front, the back, the left, the right, the upper and the lower are all based on figure 4 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as the front, the left side of the observer is defined as the left, and so on.

In the description of the present specification, reference to the description of "one embodiment," "an example," "a specific example," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only illustrative of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the present invention, and all such changes and modifications fall within the scope of the present invention as claimed.

Claims

1. The utility model provides an alcohol fermentation tail gas recovery weak liquor device which characterized in that: the air suction device comprises a base (1), wherein a supporting plate (2) is fixedly connected to the top of the base (1), an absorption barrel (3) is fixedly connected to the side wall of the supporting plate (2), the bottom of the absorption barrel (3) penetrates through and is fixedly connected with an air inlet pipe (4), a waterproof breathable film is fixedly connected to one end, located in the absorption barrel (3), of the air inlet pipe (4), and the other end of the air inlet pipe is connected with an air suction pump; the top of the absorption barrel (3) is connected with a water inlet pipe (6) in a penetrating and rotating way, the bottom end of the water inlet pipe (6) is fixedly connected with an atomizing nozzle (7), and the top end of the water inlet pipe is inserted with a water outlet pipe (8); the lateral wall rigid coupling of backup pad (2) has washing liquid case (9), the top rigid coupling of outlet pipe (8) is in the bottom of washing liquid case (9), and with the inside intercommunication of washing liquid case (9).

2. The device for recovering the weak liquor from the alcohol fermentation tail gas according to claim 1, characterized in that: the dorsal part rigid coupling of backup pad (2) has motor (10) No. one, the output shaft rigid coupling of motor (10) has pole (11) No. one, the one end rigid coupling that pole (11) are located the adsorption box has worm (12), the one end cover that inlet tube (6) are located the adsorption box is established and the rigid coupling has worm wheel (13), worm wheel (13) and worm (12) intermeshing.

3. The alcohol fermentation tail gas light wine recovery device according to claim 2, characterized in that: the bottom rigid coupling of atomizer (7) has No. two poles (14), the outer wall rigid coupling of No. two poles (14) has a plurality of stirring vane (15).

4. The alcohol fermentation tail gas light wine recovery device according to claim 3, characterized in that: the outer side wall of the absorption barrel (3) is fixedly connected with a pressure gauge (16), and the input end of the pressure gauge (16) extends into the absorption barrel (3); the top rigid coupling of base (1) has collection box (17), through arranging material pipe (18) intercommunication between collection box (17) and absorption bucket (3).

5. The alcohol fermentation tail gas light wine recovery device according to claim 4, wherein: a filter screen (19) is fixedly connected inside the recovery box (17); a first plate (20) is fixedly connected to the outer side wall of the recycling box (17), a second motor (21) is fixedly connected to the top of the first plate (20), a threaded rod (22) is fixedly connected to an output shaft of the second motor (21), a second plate (23) is sleeved at one end, located in the recycling box (17), of the threaded rod (22), and the second plate (23) is slidably connected to the inner side wall of the top of the recycling box (17); and a cleaning brush (24) is fixedly connected to one side of the second plate (23) far away from the second motor (21).

6. The alcohol fermentation tail gas light wine recovery device according to claim 5, wherein: a discharge groove is formed in one side, far away from the second motor (21), of the recovery box (17); a rectangular block (25) is connected in the discharge groove in a sliding mode, a rubber layer (26) is fixedly connected to one side, in contact with the discharge groove, of the rectangular block (25), and the interior of the rubber layer (26) is arranged in a hollow mode; a cavity is formed in the rectangular block (25), an air bag (27) is fixedly connected in the cavity, a first spring is fixedly connected in the air bag (27), and the air bag (27) is communicated with the inside of the rubber layer (26); a pressure plate (28) is connected in the cavity in a sliding manner; one side of the rectangular block (25) close to the threaded rod (22) is penetrated through and is connected with a push rod (29) in a sliding mode, one end, located in the cavity, of the push rod (29) is fixedly connected to the pressing plate (28), and the other end of the push rod (29) is fixedly connected with the push plate (30); a second spring is fixedly connected between the pressure plate (28) and the inner wall of the cavity; a fourth rod (31) is fixedly connected to one side, close to the rectangular block (25), of the second plate (23); the outer side wall of the recycling box (17) is fixedly connected with an L-shaped rod (32), and one end of the L-shaped rod (32) penetrates through the rectangular block (25) and is in sliding connection with the rectangular block, and is in contact with the pressing plate (28).

7. The alcohol fermentation tail gas light wine recovery device according to claim 6, wherein: one end of the threaded rod (22) positioned outside the recycling box (17) is sleeved and fixedly connected with a driving belt wheel (33); one side of collection box (17) is run through and is rotated and be connected with No. five pole (34), no. five pole (34) are located the equidistance rigid coupling of one end in collection box (17) and have puddler (35), and the other end rigid coupling has from driven pulleys (39), be connected through the belt between driving pulley (33) and from driven pulleys (39).

8. The device for recovering the weak liquor from the alcohol fermentation tail gas according to claim 7, characterized in that: the inner side wall of the bottom of the recovery box (17) is fixedly connected with an electric heating wire (36); a collecting tank (37) is fixedly connected to the top of the base (1); the collecting tank (37) is communicated with the recovery tank (17) through a pipeline.