An apparatus and method for extracting yellow slurry water in the solid-state fermentation of Chinese liquor

Abstract

The present invention relates to the technical field of piston pumps, and provides a device and method for extracting yellow slurry water in solid-state fermentation of Baijiu. The device and method for extracting yellow slurry water in solid-state fermentation of Baijiu include an extraction mechanism. A filtering mechanism is arranged in the middle of the extraction mechanism, and cleaning mechanisms are evenly distributed on the inner circumference of the filtering mechanism; the filtering mechanism includes an inner pump housing and a limiting ring. Liquid outlets are evenly distributed on the outer circumference of the inner pump housing. One end of both sides inside each liquid outlet close to the inner pump housing is rotatably connected with a baffle door. When the piston bowl descends, the sweeping roller is driven to rotate by the rotating shaft, and the inner part of the mesh holes of the filter net housing is continuously swept and hooked out, realizing that the mesh holes of the filter net housing can be continuously cleaned during the process of extracting yellow slurry water, further improving the filtering effect of the extracted yellow slurry water, completing the self-cleaning of the filter net housing, and reducing the maintenance cost and frequency of the equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of piston pumps, and in particular to an extraction device and method for yellow slurry water in solid-state fermentation of Chinese liquor. Background Technique

[0002] The yellow slurry water of Chinese liquor is a brownish-yellow and slightly viscous liquid produced during the solid-state fermentation of Chinese liquor. It is an important by-product of the liquor fermentation process, which has an important impact on the quality and flavor of Chinese liquor. The state and composition changes of the yellow slurry water can also reflect whether the fermentation process is normal, providing an important reference basis for the adjustment and optimization of the Chinese liquor production process. After fermentation is completed, an extraction device is required to extract the yellow slurry water for further processing.

[0003] In traditional extraction methods for yellow slurry water in solid-state fermentation of Chinese liquor, simple gravity drainage or pumping with a pump body is mostly used. However, the yellow slurry water usually contains a large amount of silt residues, such as incompletely fermented raw material particles, microbial cell aggregates, etc. During the extraction process, these silt residues are extremely likely to enter the extraction pipeline and subsequent processing equipment together with the yellow slurry water, which will not only cause pipeline blockage, greatly reduce the extraction efficiency, but also increase the maintenance cost and frequency of the equipment. Summary of the Invention

[0004] Aiming at the problems existing in the prior art, the purpose of the present invention is to provide an extraction device and method for yellow slurry water in solid-state fermentation of Chinese liquor to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the present invention provides an extraction device and method for yellow slurry water in solid-state fermentation of Chinese liquor, including an extraction mechanism. A filtering mechanism is arranged in the middle of the extraction mechanism, and a sweeping mechanism is evenly distributed inside the circumference of the filtering mechanism;

[0006] The filtering mechanism includes an inner pump housing and a limiting ring. Liquid outlets are evenly distributed on the outer circumference of the inner pump housing. One end of both sides inside each liquid outlet close to the inner pump housing is rotatably connected to a shutter. Springs I are evenly distributed on the side of the shutter away from the inner pump housing. One end of both sides inside the shutter away from the inner pump housing is fixedly connected to a scraping groove. Collection pipes are communicated with the lower ends of the scraping grooves. A filter net housing is rotatably connected to the outer circumference of the inner pump housing. A toothed ring is fixedly connected to the lower outer circumference of the filter net housing. The toothed ring is meshed with a gear I. A driving column is fixedly connected to the inside of the gear I. Driving grooves are opened on both outer sides of the driving column. Limiting beads are slidably connected to the inside of the driving grooves. The outer circumferences of the limiting beads are rotatably connected to the middle of both inner sides of the limiting ring.

[0007] Preferably, a suction pipe is fixedly connected inside the middle opening at the lower end of the extraction mechanism, a liquid outlet pipe is fixedly connected inside the lower front opening of the extraction mechanism, a sewage discharge pipe is fixedly connected inside the right opening at the middle of the lower end of the extraction mechanism, and an exhaust pipe is fixedly connected inside the upper front opening of the extraction mechanism.

[0008] Preferably, a base is fixedly connected to the outer periphery of the lower end of the extraction mechanism, and one-way valves are fixedly connected inside one end of the suction pipe far from the extraction mechanism and one ends of the liquid outlet pipe, the sewage discharge pipe, and the exhaust pipe close to the extraction mechanism.

[0009] Preferably, the extraction mechanism includes an outer pump housing, a piston bowl is slidably connected to the upper inner part of the outer pump housing, a piston rod is fixedly connected to the middle of the upper end of the piston bowl, a cross bar is fixedly connected to the upper end of the piston rod, electric push rods are fixedly connected to both ends of the cross bar, the outer peripheries of the electric push rods are fixedly connected to the upper sides of both sides of the outer pump housing, a limiting post is fixedly connected to the right side of the inner bottom wall of the outer pump housing, and the outer periphery of the upper end of the limiting post is slidably connected inside the lower right opening of the piston bowl.

[0010] Preferably, collection ports are evenly distributed at the lower end of the filter net housing, a sewage collection pipe is fixedly connected to the inner bottom wall of the outer pump housing, the lower ends of the collection ports are all communicated with the inside of the sewage collection pipe, and the upper end of the sewage discharge pipe is communicated with the inside of the sewage collection pipe.

[0011] Preferably, one ends of the first springs far from the blocking door are fixedly connected to the inner sides of both sides of the liquid outlet, the lower ends of the collection pipes are all communicated with the inside of the collection ports, and the upper end of the suction pipe is communicated with the inside of the inner pump housing.

[0012] Preferably, the lower ends of the limiting beads are rotatably connected to the left side of the inner bottom wall of the outer pump housing, and the outer periphery of the limiting ring is fixedly connected to the inner bottom of the left lower opening of the piston bowl.

[0013] Preferably, the cleaning mechanism includes a rotating shaft and a pull rod. There are eight rotating shafts, which are alternately distributed with the liquid outlet on the outer periphery of the inner pump housing. Sweeping rollers are fixedly connected to the outer peripheries of the rotating shafts. Pull rods are rotatably connected to the middle outer peripheries of the sweeping rollers. Installation rings are fixedly connected to both ends of the rotating shafts. Pawls are evenly distributed inside the installation rings. Springs II are fixedly connected to both ends of the near side of the pawls to the rotating shaft. A gear II is rotatably connected to the outer periphery of the installation ring. Ratchet teeth are evenly distributed inside the gear II. The gear II is meshed and connected with a rack, and both ends of the ratchet teeth are slidably connected inside the chute.

[0014] Preferably, the upper ends of the pull rods are fixedly connected to the outer periphery of the inner top wall of the piston bowl. One ends of the springs II close to the rotating shaft are fixedly connected to the inside of the installation ring. The rack and the chute are fixedly connected to both sides of the liquid outlet far from the rotating shaft. The pawls are all adapted to the ratchet teeth.

[0015] A method for extracting yellow slurry water in solid-state fermentation of Chinese liquor, which is applied to the device for extracting yellow slurry water in solid-state fermentation of Chinese liquor described in any one of the above, is characterized by including the following steps:

[0016] S1. First, start the electric push rod to drive the piston bowl to rise. The one-way valves at the lower ends inside the extraction pipe and the exhaust pipe open, and the inside of the outer pump housing is in a negative pressure state. The yellow slurry water is extracted from the extraction pipe into the internal filtration of the filtration mechanism, and then falls to the lower inner part of the outer pump housing;

[0017] S2. When the piston bowl descends, the one-way valves at the upper ends of the sewage discharge pipe and the liquid outlet pipe open. The filtered yellow slurry water is discharged and collected from the liquid outlet pipe. The filter net housing rotates, and the sludge residues inside are scraped through the scraping groove and collected into the sewage collection pipe. At the same time, the sweeping roller moves downward and rotates to scrape and hook out the sludge residues remaining inside the mesh holes of the filter net housing, and enter the sewage collection pipe through the collection port. Finally, the sludge residues are discharged through the sewage discharge pipe.

[0018] The beneficial effects of the device and method for extracting yellow slurry water in solid-state fermentation of Chinese liquor provided by the present invention are:

[0019] 1. When the piston bowl descends, the limit beads slide in the inclined groove of the driving groove. The limit ring drives the driving column to rotate through the limit beads and the driving groove, and then drives the filter net housing to rotate through the first gear and the toothed ring, so that the clean part of the filter net housing continuously rotates to the outer periphery of the opening of the liquid outlet, and the part of the filter net housing that has filtered the yellow slurry water rotates towards the cleaning mechanism. At the same time, the sludge residues on the inner circumference of the filter net housing are scraped off and dropped to the lower inner part of the liquid outlet through the scraping groove, and the baffle door is closed by the first spring at the same time. The scraped sludge residues will be discharged into the sewage collection pipe through the collection pipe and the collection port due to the internal pressurization of the outer pump housing, and discharged through the sewage discharge pipe. When the piston bowl rises, the limit beads slide in the straight groove of the driving groove, so that when the piston bowl rises, it can always ensure effective filtration of the yellow slurry water, realizing that the filtration effect will not deteriorate due to excessive sludge residues remaining inside the filter net housing, and further causing the situation of reduced efficiency of extracting yellow slurry water.

[0020] 2. When the piston bowl descends, the piston bowl drives the rotating shaft to descend through the sweeping roller. The ratchet pawl engages with the ratchet teeth, causing the second gear to drive the ratchet pawl to rotate through the rack, and then driving the sweeping roller to rotate through the rotating shaft, continuously sweeping and hooking out the inside of the mesh holes of the filter net shell, falling into the inside of the collection port, and then discharging through the sewage collection pipe and the sewage discharge pipe. When the piston bowl ascends, the ratchet pawl and the ratchet teeth disengage, preventing the sweeping roller from reversing during the ascent, thus avoiding the sludge and residue remaining outside the sweeping roller from being thrown back into the mesh holes of the filter net shell due to centrifugal force. Therefore, during the process of pumping yellow slurry water, the mesh holes of the filter net shell can be continuously cleaned, further improving the filtering effect of the pumped yellow slurry water, achieving self-cleaning of the filter net shell, and reducing the maintenance cost and frequency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0022] Figure 1 It is a side view three-dimensional schematic diagram of a device and method for extracting yellow slurry water in solid-state fermentation of Chinese liquor provided by the present application;

[0023] Figure 2 It is a side view partial three-dimensional schematic diagram of a device and method for extracting yellow slurry water in solid-state fermentation of Chinese liquor provided by the present application;

[0024] Figure 3 It is a front sectional internal structure three-dimensional schematic diagram of a device and method for extracting yellow slurry water in solid-state fermentation of Chinese liquor provided by the present application;

[0025] Figure 4 It is the first partial enlarged three-dimensional schematic diagram of the front sectional internal structure of a device and method for extracting yellow slurry water in solid-state fermentation of Chinese liquor provided by the present application;

[0026] Figure 5 It is the second partial enlarged three-dimensional schematic diagram of the front sectional internal structure of a device and method for extracting yellow slurry water in solid-state fermentation of Chinese liquor provided by the present application;

[0027] Figure 6 It is a partial three-dimensional schematic diagram of the filtering mechanism of a device and method for extracting yellow slurry water in solid-state fermentation of Chinese liquor provided by the present application;

[0028] Figure 7 It is a partial enlarged three-dimensional schematic diagram of the sweeping mechanism of a device and method for extracting yellow slurry water in solid-state fermentation of Chinese liquor provided by the present application;

[0029] Figure 8 A partial disassembly three-dimensional schematic diagram of the cleaning mechanism of a solid-state fermentation yellow slurry water extraction device and method provided for this application.

[0030] In the figure: 1. Extraction mechanism; 11. Outer pump housing; 12. Piston bowl; 13. Limit post; 14. Piston rod; 15. Cross bar; 16. Electric push rod; 2. Filtration mechanism; 21. Inner pump housing; 22. Liquid outlet; 23. Flap door; 24. Spring I; 25. Scraping groove; 26. Collection pipe; 27. Collection port; 28. Sewage collection pipe; 29. Tooth ring; 210. Gear I; 211. Driving column; 212. Driving groove; 213. Limit bead; 214. Limit ring; 215. Filter mesh housing; 3. Cleaning mechanism; 31. Rotating shaft; 32. Sweeping roller; 33. Mounting ring; 34. Pawl; 35. Spring II; 36. Gear II; 37. Ratchet teeth; 38. Rack; 39. Sliding groove; 310. Pull rod; 4. Base; 5. Extraction pipe; 6. Liquid outlet pipe; 7. Sewage discharge pipe; 8. Exhaust pipe. Specific embodiments

[0031] The following will further describe the specific embodiments of the present invention in detail in conjunction with the specification drawings and embodiments. The following embodiments are only used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0032] As Figures 1-8 shown, this embodiment proposes a solid-state fermentation yellow slurry water extraction device and method for liquor, including an extraction mechanism 1, a filtration mechanism 2 is arranged in the middle of the extraction mechanism 1, and a cleaning mechanism 3 is evenly distributed on the inner periphery of the filtration mechanism 2;

[0033] The filtration mechanism 2 includes an inner pump housing 21 and a limit ring 214. Liquid outlets 22 are evenly distributed on the outer periphery of the inner pump housing 21. Flap doors 23 are rotatably connected to both ends of the inner sides of the liquid outlets 22 close to the inner pump housing 21. Springs I 24 are evenly distributed on the side of the flap doors 23 away from the inner pump housing 21. Scraping grooves 25 are fixedly connected to both ends of the inner sides of the flap doors 23 away from the inner pump housing 21. Collection pipes 26 are communicated with the lower ends of the scraping grooves 25. A filter mesh housing 215 is rotatably connected to the outer periphery of the inner pump housing 21. A tooth ring 29 is fixedly connected to the lower outer periphery of the filter mesh housing 215. The tooth ring 29 is meshed with a gear I 210. A driving column 211 is fixedly connected to the inside of the gear I 210. Driving grooves 212 are opened on both outer sides of the driving column 211. Limit beads 213 are slidably connected to the inside of the driving grooves 212. The outer peripheries of the limit beads 213 are rotatably connected to the middle of both inner sides of the limit ring 214.

[0034] In this embodiment, collection ports 27 are evenly distributed at the lower end of the filter mesh housing 215. A sewage collection pipe 28 is fixedly connected to the inner bottom wall of the outer pump housing 11. The lower ends of the collection ports 27 are communicated with the inside of the sewage collection pipe 28. The upper end of the sewage discharge pipe 7 is communicated with the inside of the sewage collection pipe 28.

[0035] In this embodiment, the ends of the first springs 24 far from the door 23 are fixedly connected to both inner sides of the liquid outlet 22. The lower ends of the collection pipes 26 are communicated with the inside of the collection ports 27, and the upper ends of the extraction pipes 5 are communicated with the inside of the inner pump housing 21.

[0036] In this embodiment, the lower ends of the limit beads 213 are rotatably connected to the left side of the inner bottom wall of the outer pump housing 11, and the outer periphery of the limit ring 214 is fixedly connected to the inner bottom of the left side opening at the lower end of the piston bowl 12.

[0037] Specifically, when it is necessary to extract yellow pulp water, the electric push rod 16 is started. The piston bowl 12 is driven to move upward through the cross bar 15 and the piston column 14. At this time, the one-way valves at the lower ends of the cross bar 15 and the exhaust pipe 8 are opened, and the one-way valves inside the liquid outlet pipe 6 and the sewage discharge pipe 7 are closed. The yellow pulp water in the yellow pulp tank inside the fermentation tank is extracted into the inner pump housing 21 through the extraction pipe 5. At this time, the pressure inside the inner pump housing 21 increases, causing the doors 23 on both inner sides of the liquid outlet 22 to open. The yellow pulp water flows into the inside of the doors 23, is filtered by the filter mesh housing 215, and then enters the lower part inside the outer pump housing 11. When the piston bowl 12 descends, the one-way valves at the lower ends of the cross bar 15 and the exhaust pipe 8 are closed, and the one-way valves inside the liquid outlet pipe 6 and the sewage discharge pipe 7 are opened. The filtered yellow pulp water is discharged through the liquid outlet pipe 6, completing the filtration and extraction of the yellow pulp water.

[0038] In this embodiment, an extraction pipe 5 is fixedly connected to the inner opening at the middle of the lower end of the extraction mechanism 1, a liquid outlet pipe 6 is fixedly connected to the inner opening at the lower front side of the extraction mechanism 1, a sewage discharge pipe 7 is fixedly connected to the inner opening at the middle right side of the lower end of the extraction mechanism 1, and an exhaust pipe 8 is fixedly connected to the inner opening at the front upper side of the extraction mechanism 1.

[0039] In this embodiment, a base 4 is fixedly connected to the outer periphery of the lower end of the extraction mechanism 1, and one-way valves are fixedly connected to the inside of the end of the extraction pipe 5 far from the extraction mechanism 1 and the ends of the liquid outlet pipe 6, the sewage discharge pipe 7, and the exhaust pipe 8 close to the extraction mechanism 1.

[0040] In this embodiment, the extraction mechanism 1 includes an outer pump housing 11. A piston bowl 12 is slidably connected to the upper inner part of the outer pump housing 11. A piston column 14 is fixedly connected to the middle of the upper end of the piston bowl 12. A cross bar 15 is fixedly connected to the upper end of the piston column 14. Electric push rods 16 are fixedly connected to both ends of the cross bar 15. The outer peripheries of the electric push rods 16 are fixedly connected to the upper ends of both sides of the outer pump housing 11. A limit post 13 is fixedly connected to the right side of the inner bottom wall of the outer pump housing 11, and the outer periphery of the upper end of the limit post 13 is slidably connected to the inner right side opening at the lower end of the piston bowl 12.

[0041] Specifically, when the piston bowl 12 descends, the limit beads 213 slide in the inclined groove of the driving groove 212. The limit ring 214 drives the driving column 211 to rotate through the limit beads 213 and the driving groove 212, and then drives the filter screen housing 215 to rotate through the first gear 210 and the toothed ring 29, so that the clean part of the filter screen housing 215 continuously rotates to the outer periphery of the opening of the liquid outlet 22, and the part of the filter screen housing 215 that has filtered the yellow pulp water rotates towards the cleaning mechanism 3. At the same time, the sludge residue on the inner periphery of the filter screen housing 215 is scraped off through the scraping groove 25 and dropped to the inner lower part of the liquid outlet 22. At the same time, the shutter 23 is closed through the first spring 24. The scraped sludge residue will be discharged into the inside of the sewage collecting pipe 28 through the collecting pipe 26 and the collecting port 27 due to the internal pressurization of the outer pump housing 11, and discharged through the sewage discharge pipe 7. When the piston bowl 12 ascends, the limit beads 213 slide in the straight groove of the driving groove 212, so that the effective filtration of the yellow pulp water can always be ensured when the piston bowl 12 ascends, avoiding the situation that the filtration effect deteriorates due to excessive sludge residue remaining inside the filter screen housing 215, and further reducing the efficiency of pumping the yellow pulp water.

[0042] In this embodiment, the cleaning mechanism 3 includes a rotating shaft 31 and a pull rod 310. There are eight rotating shafts 31, which are alternately distributed with the liquid outlet 22 on the outer periphery of the inner pump housing 21. The outer periphery of the rotating shaft 31 is fixedly connected with a sweeping roller 32. The middle outer periphery of the sweeping roller 32 is rotatably connected with a pull rod 310. Both ends of the rotating shaft 31 are fixedly connected with mounting rings 33. The inside of the mounting rings 33 is evenly distributed with ratchet claws 34. Both ends of the side of the ratchet claw 34 close to the rotating shaft 31 are fixedly connected with second springs 35. The outer periphery of the mounting ring 33 is rotatably connected with a second gear 36. The inside of the second gear 36 is evenly distributed with ratchet teeth 37. The second gears 36 are all meshed with racks 38. Both ends of the ratchet teeth 37 are slidably connected inside the sliding grooves 39.

[0043] In this embodiment, the upper ends of the pull rods 310 are fixedly connected to the outer periphery of the inner top wall of the piston bowl 12, and one ends of the second springs 35 close to the rotating shaft 31 are fixedly connected to the inside of the mounting rings 33.

[0044] In this embodiment, the racks 38 and the sliding grooves 39 are fixedly connected to both sides of the liquid outlet 22 on the side far from the rotating shaft 31, and the ratchet claws 34 are all adapted to the ratchet teeth 37.

[0045] Specifically, when the piston bowl 12 descends, the piston bowl 12 drives the rotating shaft 31 to descend through the sweeping roller 32. The pawl 34 cooperates with the ratchet teeth 37, causing the second gear 36 to drive the pawl 34 to rotate through the rack 38. Then, the sweeping roller 32 is driven to rotate through the rotating shaft 31, continuously sweeping and hooking out the inside of the mesh holes of the filter mesh shell 215 and falling into the inside of the collection port 27. Then, it is discharged through the sewage collection pipe 28 and the sewage discharge pipe 7. When the piston bowl 12 ascends, the pawl 34 and the ratchet teeth 37 disengage, preventing the sweeping roller 32 from reversing during the ascending process. Thus, the sludge residue remaining outside the sweeping roller 32 is prevented from being flung back into the mesh holes of the filter mesh shell 215 due to centrifugal force. Therefore, during the process of pumping yellow slurry water, the mesh holes of the filter mesh shell 215 can be continuously cleaned, further improving the filtering effect of the pumped yellow slurry water, achieving self-cleaning of the filter mesh shell 215, and reducing the maintenance cost and frequency of the equipment.

[0046] A method for extracting yellow slurry water in solid-state fermentation of white liquor, which is applied to a device for extracting yellow slurry water in solid-state fermentation of white liquor according to any one of the above, and is characterized by including the following steps:

[0047] S1. First, start the electric push rod 16 to drive the piston bowl 12 to ascend. The one-way valves at the lower ends inside the extraction pipe 5 and the exhaust pipe 8 open, and the inside of the outer pump housing 11 is in a negative pressure state. After the yellow slurry water is extracted from the extraction pipe 5 and filtered inside the filtering mechanism 2, it falls to the lower inner part of the outer pump housing 11.

[0048] S2. When the piston bowl 12 descends, the one-way valves at the upper ends of the sewage discharge pipe 7 and the liquid outlet pipe 6 open. The filtered yellow slurry water is discharged and collected through the liquid outlet pipe 6. The filter mesh shell 215 rotates, and the sludge residue inside is scraped and collected into the sewage collection pipe 28 through the scraping groove 25. At the same time, the sweeping roller 32 moves downward and rotates, scraping and hooking out the remaining sludge residue inside the mesh holes of the filter mesh shell 215 and entering the sewage collection pipe 28 through the collection port 27. Finally, the sludge residue is discharged through the sewage discharge pipe 7.

[0049] Working principle: When it is necessary to extract yellow slurry water, start the electric push rod 16. The piston bowl 12 is driven to move upward through the cross bar 15 and the piston column 14. At this time, the one-way valves at the lower ends of the cross bar 15 and the exhaust pipe 8 are opened, and the one-way valves inside the liquid outlet pipe 6 and the sewage discharge pipe 7 are closed. The yellow slurry water in the yellow slurry pool inside the fermentation tank is extracted into the inner pump housing 21 through the extraction pipe 5. At this time, the pressure inside the inner pump housing 21 increases, causing the shutter doors 23 on both sides inside the liquid outlet 22 to open. The yellow slurry water flows into the inside of the shutter doors 23, is filtered by the filter mesh housing 215, and then enters the lower inner part of the outer pump housing 11. When the piston bowl 12 descends, the one-way valves at the lower ends of the cross bar 15 and the exhaust pipe 8 are closed, and the one-way valves inside the liquid outlet pipe 6 and the sewage discharge pipe 7 are opened. The filtered yellow slurry water is discharged through the liquid outlet pipe 6, completing the filtration and extraction of the yellow slurry water. When the piston bowl 12 descends, the limit bead 213 slides in the inclined groove of the drive groove 212. The limit ring 214 drives the drive column 211 to rotate through the limit bead 213 and the drive groove 212, and then drives the filter mesh housing 215 to rotate through the first gear 210 and the gear ring 29, so that the clean part of the filter mesh housing 215 continuously rotates to the outer periphery of the opening of the liquid outlet 22, and the part of the filter mesh housing 215 that has filtered the yellow slurry water rotates towards the cleaning mechanism 3. At the same time, the sludge residue on the inner circumference of the filter mesh housing 215 is scraped off and dropped to the lower inner part of the liquid outlet 22 through the scraping groove 25. At the same time, the shutter doors 23 are closed by the first spring 24. The scraped sludge residue will be discharged into the inside of the sewage collection pipe 28 through the collection pipe 26 and the collection port 27 due to the internal pressurization of the outer pump housing 11 and discharged through the sewage discharge pipe 7. When the piston bowl 12 rises, the limit bead 213 slides in the straight groove of the drive groove 212, ensuring that the yellow slurry water can be effectively filtered all the time when the piston bowl 12 rises, preventing the situation where the filtration effect deteriorates due to excessive sludge residue remaining inside the filter mesh housing 215, which in turn leads to a decrease in the efficiency of extracting yellow slurry water. When the piston bowl 12 descends, the piston bowl 12 drives the rotating shaft 31 to descend through the sweeping roller 32. The pawl 34 cooperates with the ratchet teeth 37, causing the second gear 36 to drive the pawl 34 to rotate through the rack 38, and then driving the sweeping roller 32 to rotate through the rotating shaft 31, continuously sweeping and fishing out the inside of the mesh holes of the filter mesh housing 215 and dropping it into the inside of the collection port 27, and then discharging it through the sewage collection pipe 28 and the sewage discharge pipe 7. When the piston bowl 12 rises, the pawl 34 and the ratchet teeth 37 disengage, preventing the sweeping roller 32 from reversing during the rising process, thus avoiding the sludge residue remaining outside the sweeping roller 32 from being thrown back into the mesh holes of the filter mesh housing 215 due to centrifugal force. Therefore, during the process of extracting yellow slurry water, the mesh holes of the filter mesh housing 215 can be continuously cleaned, further improving the filtration effect of the extracted yellow slurry water, achieving self-cleaning of the filter mesh housing 215, and reducing the maintenance cost and frequency of the equipment.

[0050] The above embodiments are only used to illustrate the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those of ordinary skill in the art should understand that various combinations, modifications or equivalent replacements of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention and should all be covered within the scope of the claims of the present invention.

Claims

1. A solid-state fermentation yellow slurry water extraction device for baijiu, comprising an extraction mechanism (1), characterized in that, A filtering mechanism (2) is arranged in the inner middle of the extraction mechanism (1), and a cleaning mechanism (3) is evenly distributed on the inner periphery of the filtering mechanism (2); The filtering mechanism (2) includes an inner pump housing (21) and a limiting ring (214). Liquid outlets (22) are evenly distributed on the outer periphery of the inner pump housing (21). One ends of both sides of the inner sides of the liquid outlets (22) close to the inner pump housing (21) are rotatably connected with a retaining door (23). One ends of the retaining door (23) far away from the inner pump housing (21) are evenly distributed with a first spring (24). One ends of both sides of the retaining door (23) far away from the inner pump housing (21) are fixedly connected with scraping grooves (25). The lower ends of the scraping grooves (25) are both communicated with a collecting pipe (26). A filter net housing (215) is rotatably connected to the outer periphery of the inner pump housing (21). A gear ring (29) is fixedly connected to the outer periphery of the lower end of the filter net housing (215). The gear ring (29) is meshed with a first gear (210). A driving column (211) is fixedly connected to the inside of the first gear (210). Driving grooves (212) are formed on both outer sides of the driving column (211). Limiting beads (213) are slidably connected to the inside of the driving grooves (212). The outer peripheries of the limiting beads (213) are rotatably connected to the middle parts of both inner sides of the limiting ring (214); The extraction mechanism (1) includes an outer pump housing (11). A piston bowl (12) is slidably connected to the upper inner part of the outer pump housing (11). A piston column (14) is fixedly connected to the middle part of the upper end of the piston bowl (12). A cross bar (15) is fixedly connected to the upper end of the piston column (14). Electric push rods (16) are fixedly connected to both ends of the cross bar (15). The outer peripheries of the electric push rods (16) are fixedly connected to the upper ends of both sides of the outer pump housing (11). A limiting column (13) is fixedly connected to the right side of the inner bottom wall of the outer pump housing (11). The outer periphery of the upper end of the limiting column (13) is slidably connected to the opening at the lower right end of the piston bowl (12); The cleaning mechanism (3) includes a rotating shaft (31) and a pull rod (310). There are eight rotating shafts (31), which are alternately distributed with the liquid outlet (22) on the outer periphery of the inner pump housing (21). A cleaning roller (32) is fixedly connected to the outer periphery of each rotating shaft (31). A pull rod (310) is rotatably connected to the outer periphery of the middle part of the cleaning roller (32). Installation rings (33) are fixedly connected to both ends of the rotating shaft (31). Pawls (34) are evenly distributed inside the installation rings (33). Springs II (35) are fixedly connected to both ends of the side of each pawl (34) close to the rotating shaft (31). A second gear (36) is rotatably connected to the outer periphery of the installation ring (33). Ratchet teeth (37) are evenly distributed inside the second gear (36). The second gears (36) are all meshed with racks (38). Both ends of the ratchet teeth (37) are slidably connected inside the chute (39). The upper ends of the pull rods (310) are fixedly connected to the outer periphery of the inner top wall of the piston bowl (12). One ends of the Springs II (35) close to the rotating shaft (31) are fixedly connected inside the installation rings (33). The racks (38) and the sides of the chute (39) far from the rotating shaft (31) are fixedly connected to both sides of the liquid outlet (22). The pawls (34) are all adapted to the ratchet teeth (37).

2. The solid-state fermentation yellow slurry water extraction device for Chinese liquor according to claim 1, characterized in that, An extraction pipe (5) is fixedly connected to the opening in the middle of the lower end of the extraction mechanism (1). A liquid outlet pipe (6) is fixedly connected to the opening in the lower front side of the extraction mechanism (1). A sewage discharge pipe (7) is fixedly connected to the opening in the middle right side of the lower end of the extraction mechanism (1). An exhaust pipe (8) is fixedly connected to the opening in the upper front side of the extraction mechanism (1).

3. The solid-state fermentation yellow slurry water extraction device for Chinese liquor according to claim 2, characterized in that, A base (4) is fixedly connected to the outer periphery of the lower end of the extraction mechanism (1). Check valves are fixedly connected to the ends of the extraction pipe (5) far from the extraction mechanism (1) and the ends of the liquid outlet pipe (6), the sewage discharge pipe (7), and the exhaust pipe (8) close to the extraction mechanism (1).

4. A solid-state fermentation yellow slurry water extraction device for Baijiu according to claim 3, characterized in that, Collection ports (27) are evenly distributed at the lower end of the filter mesh housing (215). A sewage collection pipe (28) is fixedly connected to the inner bottom wall of the outer pump housing (11). The lower ends of the collection ports (27) are all communicated with the inside of the sewage collection pipe (28). The upper end of the sewage discharge pipe (7) is communicated with the inside of the sewage collection pipe (28).

5. The solid-state fermentation yellow slurry water extraction device for Chinese liquor according to claim 4, characterized in that, One ends of the Springs I (24) far from the shutter (23) are fixedly connected to the inner two sides of the liquid outlet (22). The lower ends of the collection pipes (26) are all communicated with the inside of the collection ports (27). The upper end of the extraction pipe (5) is communicated with the inside of the inner pump housing (21).

6. The solid-state fermentation yellow slurry water extraction device for Chinese liquor according to claim 5, characterized in that, The lower ends of the limit beads (213) are rotatably connected to the left side of the inner bottom wall of the outer pump housing (11). The outer periphery of the limit ring (214) is fixedly connected to the inner bottom of the left side opening at the lower end of the piston bowl (12).

7. A method for extracting yellow slurry water in solid-state fermentation of Chinese liquor, which is applied to the yellow slurry water extraction device for solid-state fermentation of Chinese liquor described in claim 6, and is characterized in that, Including the following steps: S1. First, start the electric push rod (16) to drive the piston bowl (12) to rise. The one-way valves at the lower ends inside the extraction pipe (5) and the exhaust pipe (8) open, and the inside of the outer pump housing (11) is in a negative pressure state. The yellow pulp water is extracted from the extraction pipe (5) into the inside of the filtering mechanism (2) for filtration and then falls to the lower inner part of the outer pump housing (11). S2. When the piston bowl (12) descends, the one-way valves at the upper ends of the sewage discharge pipe (7) and the liquid outlet pipe (6) open. The filtered yellow pulp water is discharged and collected through the liquid outlet pipe (6). The filter mesh housing (215) rotates, and the sludge residues inside are scraped through the scraping groove (25) and collected into the sewage collection pipe (28). At the same time, the sweeping roller (32) moves downward and rotates to scrape and hook out the sludge residues remaining inside the mesh holes of the filter mesh housing (215), which enter the sewage collection pipe (28) through the collection port (27), and finally the sludge residues are discharged through the sewage discharge pipe (7).

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