Separation equipment and fougere-soft-flavor type liquor fermentation system with same

Abstract

The invention relates to the technical field of baijiu fermentation, in particular to separation equipment and a fougere-soft-flavor baijiu fermentation system with the same. The separation equipment comprises a separation barrel, and two filter plates are arranged in the separation barrel; a filter unit is arranged between the corresponding impurity discharge port and impurity outlet; the filtering unit comprises an outer net, an inner net is slidably embedded in the outer net, and an opening and closing door is arranged at the impurity outlet; and a cleaning unit is arranged on the separation barrel. In the process that the scraping plate seals the impurity discharging opening, the sieve pores of the inner net and the sieve pores of the outer net are staggered and are sealed, the impurity discharging opening is exposed, and clear liquid mixed with fiber residues or pit mud particles is discharged through the impurity discharging opening, so that the fiber residues and the pit mud particles are collected; when the scraper blade is separated from the impurity discharging opening, the sieve holes of the inner net correspond to the sieve holes of the outer net, the opening and closing door seals the impurity discharging opening, and fiber residues or pit mud particles are intercepted by the inner net. According to the device, fiber residues, pit mud particles and clear liquid can be efficiently separated and collected under the non-stop condition, so that the yellow water separation efficiency is improved.

Description

Technical Field

[0001] This application relates to the technical field of baijiu fermentation, and in particular to a separation device and a mellow-aroma baijiu fermentation system having the same. Background Technology

[0002] The "Fu Rou" aroma type of baijiu is a new category in the classification of Chinese baijiu aroma types. Its core lies in the integration of traditional brewing techniques and natural processes, organically blending the mellow elegance of spring-brewed baijiu with the rich and intense aroma of autumn-brewed baijiu to create a unique flavor characterized by "natural fragrance and comfortable smoothness." During production, Fu Rou aroma baijiu requires fermentation in fermentation pits. The "yellow water" is a brownish, viscous liquid produced by various brewing microorganisms during fermentation and seeping to the bottom of the pits; it is a byproduct of solid-state baijiu brewing.

[0003] High-viscosity yellow water contains a complex solid-liquid mixture, mainly consisting of three components: fiber residue, pit mud particles, and centrifuged clear liquid. The fiber residue primarily originates from incompletely decomposed plant stems and husks from brewing raw materials (such as sorghum and wheat), as well as aging and detached straw and hemp fibers from the pit mud. The fiber residue contains a large amount of organic matter (cellulose, hemicellulose, and protein) and trace elements such as nitrogen, phosphorus, and potassium, providing essential nutrients for plant growth while improving soil structure and enhancing water retention and aeration. Therefore, fiber residue can be used as a bio-fertilizer. The process achieves recycling; the pit mud particles are solid particles with a density greater than 1.1 g / cm³, composed of microbial enrichment layers (such as caproic acid bacteria and butyric acid bacteria) and humus that have detached from the pit mud, and are rich in flavor precursor substances (such as tetramethylpyrazine), which are key carriers for maintaining the activity of microorganisms in the pit and the flavor of baijiu; the centrifuged clear liquid is a liquid with high organic matter, with a COD as high as 12000–14500 mg / L, containing organic acids, alcohols and soluble colloids. Direct discharge will cause pollution, but it can be recycled and utilized (such as anaerobic biogas production).

[0004] Separating the above three types of components is crucial to the brewing process: fiber residue can easily clog equipment and increase viscosity, leading to a decrease in subsequent separation efficiency; loss of cellar mud particles will accelerate the aging of cellar mud, destroy the stability of the microbial community, and affect the "harmonious grain aroma and aged aroma" flavor characteristics of baijiu; the high organic matter content of the centrifugal liquid needs to be treated efficiently to meet environmental standards, and its reuse can reduce energy consumption costs.

[0005] Existing technologies have significant drawbacks when treating high-viscosity yellow water. Traditional filter plates have a planar structure and lack flow field optimization design, which makes the filter pores easily clogged by fiber residue and pit mud particles. The filter plates need to be cleaned every 4 hours. In addition, the fiber residue and pit mud particles attached to the filter plates have recycling value and need to be separated and collected separately. This operation will further prolong the downtime and result in low separation efficiency of yellow water. Therefore, improvements are needed. Summary of the Invention

[0006] In order to achieve efficient separation and collection of fiber residue, pit mud particles and clear liquid without stopping the machine, so as to improve the separation efficiency of yellow water, this application provides a separation device and a fermentation system for mellow-aroma baijiu with the same.

[0007] In a first aspect, the separation device provided in this application adopts the following technical solution: a separation device includes a horizontally arranged separation tank with an inlet pipe and an outlet pipe, and two filter plates located between the inlet pipe and the outlet pipe are provided inside the separation tank. The two filter plates are arranged sequentially along the axial direction of the separation tank and are used to filter fiber residue and particles respectively. The filter plate is equipped with a discharge port, and the separation tank is equipped with two outlet ports. The outlet ports and discharge ports correspond one-to-one and are located between the discharge port and the liquid outlet pipe. A filter unit is provided between the corresponding discharge port and outlet port. The filtration unit includes an outer mesh mounted on a filter plate, an inner mesh slidably embedded inside the outer mesh, the openings of the outer mesh and the inner mesh both correspond to the discharge port, and the sides of the outer mesh and the inner mesh are provided with sieve holes. The inner mesh is connected to the outer mesh through an elastic component, and the discharge port is provided with an openable and closable door. The separation tank is equipped with a cleaning unit, which includes a motor. The output shaft of the motor is coaxially arranged with the separation tank and coaxially connected to a rotating shaft. The rotating shaft is equipped with two scrapers that abut against the front surface of the corresponding filter plates. During the process of the scraper closing the discharge port, the scraper will press the inner screen into the outer screen, so that the screen holes of the inner screen and the screen holes of the outer screen are misaligned and both are closed; when the scraper leaves the discharge port, the elastic component will return to its natural state and cause the inner screen to move towards the discharge port, so that the screen holes of the inner screen correspond to the screen holes of the outer screen.

[0008] Optionally, the opening and closing door is rotatably connected to the outlet, the opening and closing door and the outlet are connected together by a first torsion spring, and the opening and closing door is provided with a top rod, and the top rod is provided with a first inclined surface. During the process of the scraper closing the discharge port, the scraper will press the top rod into the discharge port through the first inclined surface, causing the opening and closing door to flip down and the discharge port to be exposed; when the scraper is removed from the discharge port, the first torsion spring will return to its natural state and cause the top rod to extend out of the discharge port, and the opening and closing door will close the discharge port.

[0009] Optionally, the scraper has a cavity on the side facing the filter plate, a groove at the front end of the scraper, a slide plate is slidably embedded in the groove, the slide plate is connected to the scraper by a spring, and a magnetic block is provided on the filter plate; During the process of the scraper closing the discharge port, the top rod will pass through the chute and the cavity in sequence and be pressed down by the rear end of the scraper, so that the opening and closing door is separated from the discharge port. Then the magnetic block will magnetically fix the slide plate, and the slide plate will be closed in the chute, thus isolating the cavity from the inside of the separation tank. When the scraper is separated from the discharge port, the spring will return to its natural state and cause the slide plate to move away from the front surface of the filter plate.

[0010] Optionally, the inner net is provided with a top block, and the top block is provided with a second inclined surface. During the process of the scraper closing the discharge port, the front end of the scraper will press the inner net into the outer net through the second inclined surface.

[0011] Optionally, the filter plate has a rotating cavity inside, and a locking block is rotatably connected inside the rotating cavity. The locking block is arranged in a "V" shape and is connected to the rotating cavity by a second torsion spring. The top rod has a locking groove. During the process of the scraper closing the discharge port, the rear end of the scraper will press the locking block into the rotating cavity and press the push rod into the discharge port; when the scraper is removed from the discharge port, the first torsion spring will return to its natural state and cause the push rod to extend out of the discharge port, the second torsion spring will return to its natural state and cause one end of the locking block to extend out of the rotating cavity, and the other end of the locking block will be engaged in the slot.

[0012] Optionally, both the inner and outer nets have sieve holes at their rear ends, and the outer net has a sealing plate located between the rear ends of the inner and outer nets, with a gap between the sealing plate and the rear end of the outer net; when the scraper presses the inner net into the outer net, the rear end of the inner net will abut against the sealing plate, and the sealing plate will close the sieve holes at the rear end of the inner net.

[0013] Optionally, the bottom of the separation tank is provided with a first guide surface located between the filter plate and the impurity outlet, and the height of the first guide surface gradually decreases from the filter plate to the impurity outlet; the upper surface of the opening and closing door is provided with a second guide surface, and the height of the second guide surface gradually decreases from the hinge end of the opening and closing door to the flip end of the opening and closing door.

[0014] Optionally, it also includes a filter box and a collection box arranged at vertical intervals. The filter box is equipped with a filter screen for filtering fiber residue. The filter screen divides the interior of the filter box into a fiber cavity and a particle cavity. The pore size of the fiber cavity is larger than that of the particle cavity. The fiber cavity is located below the front impurity outlet, and the particle cavity is located below the rear impurity outlet.

[0015] Optionally, the filter plate is arranged in a frustum shape, and the inner diameter of the filter plate gradually decreases from the front end of the separation tank to the rear end of the separation tank.

[0016] Secondly, the fermentation system for the rich and mellow aroma type of Baijiu provided in this application adopts the following technical solution: The fermentation system for the rich and mellow aroma type of Baijiu includes: Separation equipment, used to separate yellow water into fibrous residue, pit mud particles and clear liquid; A self-priming pump is connected to the pit and the separation equipment to pump out the yellow water from the pit and input it into the separation equipment. The fiber residue treatment equipment includes a slag separator and a paddle dryer connected in sequence. The slag separator is used to sort and separate the fiber residue, and the paddle dryer is used to dry the fiber residue. The cellar mud particle treatment equipment includes a disc centrifuge and a spiral backfiller connected in sequence. The disc centrifuge is used to dewater the cellar mud particles, and the spiral backfiller is used to backfill the cellar mud particles into the cellar curing layer. The clear liquid treatment equipment includes an EGSB anaerobic reactor and a decolorizing air flotation tower connected in sequence. The EGSB anaerobic reactor is used to degrade organic matter in the clear liquid and recover the biogas produced in the degradation process. The decolorizing air flotation tower is used to remove the color of the clear liquid and retain residual colloids and suspended solids.

[0017] In summary, this application includes the following beneficial technical effects: 1. The filter plate is shaped like a frustum, with its inner diameter gradually decreasing from the front to the rear of the separation tank. The frustum shape of the filter plate, combined with the gradually decreasing inner diameter, guides the yellow water in and forms a centripetal flow field along the conical surface, ensuring that the fluid pressure is evenly transmitted to the entire surface of the filter plate, avoiding local overload or dead zones, and improving filtration uniformity. The conical structure of the frustum filter plate can evenly distribute stress along the inclined surface when under pressure, avoiding stress concentration that could lead to filter plate deformation or cracking, making it particularly suitable for high-viscosity yellow water applications. 2. During the rotation cycle of the scraper, anti-clogging control is achieved through mechanical linkage. The front end of the scraper uses the second inclined surface of the top block to push the inner screen axially, so that the screen holes on the side of the inner screen and the screen holes on the side of the outer screen are completely misaligned to close the filtration channel. At the same time, the magnetic block is triggered to attract the sliding plate to block the slide groove, preventing yellow water from entering the inner screen through the concave cavity. The rear end of the scraper presses down on the first inclined surface of the top rod to open and close the door, and the discharge port is opened in linkage, thereby thoroughly scraping off the adhering material on the surface of the filter plate and discharging it in a directional manner. 3. When the inner net is pressed into the outer net, its rear end abuts against the sealing plate to form a physical barrier, simultaneously sealing the screen holes at the rear end of the inner net and isolating the inside of the separation barrel from the inside of the inner net; after the opening and closing door is reset by the first torsion spring, the locking block is engaged in the locking groove under the action of the second torsion spring, so that the top rod and the opening and closing door are engaged and fixed to ensure that the opening and closing door is stably closed at the outlet. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 This is a schematic cross-sectional view of an embodiment of this application; Figure 3 This is a cross-sectional view of the filtering unit in an embodiment of this application; Figure 4 This is a schematic diagram of the structure of the filtering unit in an embodiment of this application; Figure 5 This is a cross-sectional structural diagram of the external network in an embodiment of this application; Figure 6 This is a cross-sectional structural diagram of the external network and internal network in an embodiment of this application; Figure 7 This is a schematic diagram of the structure of the filter plate and filter unit according to an embodiment of this application; Figure 8 This is a cross-sectional view of the filter plate and filter unit according to an embodiment of this application; Figure 9 This is a schematic diagram of the structure of the top block and the top rod in an embodiment of this application; Figure 10 This is a schematic diagram of the structure of the push rod and the locking block in an embodiment of this application; Figure 11 This is a schematic diagram of the structure after the scraper detaches from the waste discharge port according to an embodiment of this application; Figure 12 yes Figure 11 A magnified view of a portion of point A in the middle; Figure 13 This is a cross-sectional view of the scraper after it has detached from the waste discharge port according to an embodiment of this application; Figure 14 This is a flowchart of the fermentation system according to an embodiment of this application.

[0019] Reference numerals: 1. Separation tank; 11. Inlet pipe; 12. Outlet pipe; 13. Impurity outlet; 14. First guide surface; 2. Filter plate; 21. Impurity outlet; 22. Groove; 23. Magnetic block; 24. Rotating cavity; 25. Clamping block; 26. Second torsion spring; 3. Cleaning unit; 31. Motor; 32. Rotating shaft; 33. Scraper; 331. Cavity; 332. Slide groove; 34. Slide plate; 341. Spring; 4. 41. Filter box; 42. Filter screen; 43. Fiber chamber; 44. Microparticle chamber; 5. Collection box; 6. Filter unit; 61. Outer screen; 62. Inner screen; 621. Top block; 622. Second inclined surface; 63. Elastic component; 631. Elastic telescopic rod; 64. Opening and closing door; 641. First torsion spring; 642. Top rod; 643. First inclined surface; 644. Second guide surface; 645. Slot; 65. Sealing plate. Detailed Implementation

[0020] The following is in conjunction with the appendix Figure 1-14 This application will be described in further detail.

[0021] Example 1 This application discloses a separation device. For example... Figure 1 and Figure 2As shown, a separation device includes a horizontally arranged separation tank 1. The lower left end of the separation tank 1 is connected to an inlet pipe 11, and the top right end of the separation tank 1 is connected to an outlet pipe 12. Two filter plates 2 are fixedly embedded inside the separation tank 1, located between the inlet pipe 11 and the outlet pipe 12. The two filter plates 2 are arranged sequentially along the axial direction of the separation tank 1 and are used to filter fiber residue and particles respectively. The filter hole diameter of the front filter plate 2 is larger than that of the rear filter plate 2. The bottom of the separation tank 1 is provided with two impurity outlets 13 arranged sequentially along the axial direction of the separation tank 1.

[0022] During the separation of yellow water, the yellow water enters the separation tank 1 through the inlet pipe 11. The front filter plate 2 filters and traps the fiber residue, which is discharged through the front impurity outlet 13. The rear filter plate 2 filters and traps the pit mud particles, which are discharged through the rear impurity outlet 13. The clear liquid overflows and is discharged through the outlet pipe 12.

[0023] The separation tank 1 is equipped with a cleaning unit 3, which includes a motor 31 installed in the middle of the left end of the separation tank 1. The output shaft of the motor 31 is coaxially arranged with the separation tank 1 and coaxially connected to a rotating shaft 32. The rotating shaft 32 rotatably passes through two filter plates 2, and two scrapers 33 are installed on the rotating shaft 32. The two scrapers 33 respectively abut against the front surface of the corresponding filter plate 2. The motor 31 can drive the two scrapers 33 to rotate through the rotating shaft 32, so that the scrapers 33 rotate and scrape off the fiber residue or pit mud particles attached to the front surface of the filter plate 2, so as to avoid the filter plate 2 being completely blocked.

[0024] The filter plate 2 is arranged in a frustum shape. The inner diameter of the filter plate 2 gradually decreases from the front end of the separation tank 1 to the rear end of the separation tank 1. The frustum shape of the filter plate 2, combined with the gradually decreasing inner diameter, guides the yellow water to enter and forms a centripetal flow field along the conical surface, so that the fluid pressure is evenly transmitted to the entire surface of the filter plate 2, avoiding local overload or dead zones and improving filtration uniformity. The conical structure of the frustum filter plate 2 can evenly distribute the stress along the inclined surface when under pressure, avoiding the deformation or cracking of the filter plate 2 caused by stress concentration, which is especially suitable for the working conditions of high viscosity yellow water.

[0025] Below the separation tank 1 are a filter box 4 and a collection box 5 arranged at intervals. The filter box 4 is fixedly embedded with a filter screen 41 for filtering fiber residue. The filter screen 41 divides the interior of the filter box 4 into a fiber cavity 42 and a particle cavity 43. The filter hole diameter at the bottom of the fiber cavity 42 is larger than the filter hole diameter at the bottom of the particle cavity 43. The fiber cavity 42 is located below the front impurity outlet 13, and the particle cavity 43 is located below the rear impurity outlet 13.

[0026] The fiber chamber 42 corresponds to the fiber residue discharged from the front outlet 13, which can quickly screen out long fibers and coarse particles to avoid clogging; the particle chamber 43 corresponds to the pit mud particles discharged from the rear outlet 13, which can finely intercept pit mud particles with a density greater than 1.1 g / cm³ to prevent the loss of microbial resources; the clear liquid passing through the fiber chamber 42 and the particle chamber 43 will fall into the collection box 5 for collection; in addition, the filter screen 41 can filter and intercept the fiber residue, while the pit mud particles mixed in the fiber chamber 42 can pass through the filter screen 41 and move into the particle chamber 43 to improve the recycling rate of pit mud particles.

[0027] It is worth noting that the height of the bottom of the filter box 4 gradually decreases from the front outlet 13 to the rear outlet 13, so that the silt particles in the fiber cavity 42 can pass through the filter screen 41 under the action of gravity and flow into the particle cavity 43. Furthermore, the silt particles in the particle cavity 43 will not easily flow back into the fiber cavity 42, thus improving the separation effect of fiber residue and silt particles.

[0028] like Figures 3 to 5 As shown, the filter plate 2 has a discharge port 21 in the middle and lower part. The discharge port 21 runs through the front and rear sides of the filter plate 2. The discharge port 13 corresponds to the discharge port 21 and is located between the discharge port 21 and the liquid outlet pipe 12. A filter unit 6 is provided between the corresponding discharge port 21 and discharge port 13. The front filter unit 6 is used to filter and retain fiber residue, and the rear filter unit 6 is used to filter and retain pit mud particles.

[0029] The filter unit 6 includes an outer mesh 61 installed on the rear surface of the filter plate 2, an inner mesh 62 slidably embedded in the outer mesh 61, the openings of the outer mesh 61 and the inner mesh 62 are both corresponding to the discharge port 21, and the sides of the outer mesh 61 and the inner mesh 62 are provided with sieve holes. The inner mesh 62 is connected to the outer mesh 61 through an elastic component 63, and an openable and closable door 64 is provided at the discharge port 13.

[0030] During the process of the scraper 33 closing the discharge port 21, the scraper 33 will press the inner screen 62 deep into the outer screen 61, so that the screen holes of the inner screen 62 and the screen holes of the outer screen 61 are misaligned and both are closed, forming a physical isolation barrier to prevent the yellow water in the separation tank 1 from entering the inner screen 62 through the discharge port 21 or the outer screen 61. At this time, the worker can open the opening and closing door 64 to expose the discharge port 13. The clear liquid mixed with fiber residue or pit mud particles will be discharged into the filter box 4 through the discharge port 13 to achieve the collection of fiber residue and pit mud particles, and to achieve the cleaning of the inside of the inner screen 62 so that the inner screen 62 can continue to collect fiber residue or pit mud particles in the subsequent process.

[0031] When the scraper 33 disengages from the discharge port 21, the elastic component 63 will return to its natural state and cause the inner screen 62 to move closer to the discharge port 21, so that the sieve holes of the inner screen 62 correspond to the sieve holes of the outer screen 61. At this time, the opening and closing door 64 will be closed at the discharge port 13 to prevent yellow water from leaking from the discharge port 13. The fiber residue or pit mud particles scraped off by the scraper 33 will enter the inner screen 62 through the discharge port 21. The inner screen 62 will trap the fiber residue or pit mud particles, while the clear liquid will pass through the inner screen 62 and the outer screen 61 and overflow through the liquid outlet pipe 12.

[0032] like Figure 5 As shown, it is worth noting that the elastic component 63 is located between the rear end of the inner net 62 and the rear end of the outer net 61. The elastic component 63 includes two sets of elastic telescopic rods 631 disposed at the rear end of the outer net 61. The fixed end of the elastic telescopic rod 631 is connected to the rear end of the outer net 61, and the telescopic end of the elastic telescopic rod 631 is connected to the rear end of the inner net 62, so as to realize the stable sliding of the inner net 62 within the outer net 61 and ensure that the inner net 62 can be accurately misaligned or aligned with the outer net 61.

[0033] like Figure 6 As shown, both the inner screen 62 and the outer screen 61 have sieve holes at their rear ends. A sealing plate 65 is connected to the outer screen 61 via a connecting rod, positioned between the rear ends of the inner screen 62 and the outer screen 61. The sealing plate 65 and the rear end of the outer screen 61 are spaced apart. During the process of the scraper 33 closing the discharge port 21, the scraper 33 will press the inner screen 62 deep into the outer screen 61. The rear end of the inner screen 62 will abut against the sealing plate 65, which will seal the sieve holes at the rear end of the inner screen 62, forming a physical isolation barrier. This completely isolates the fiber residue or pit mud particles inside the inner screen 62 from the interior of the separation tank 1 during discharge, preventing yellow water from leaking from the discharge port 13.

[0034] When the scraper 33 disengages from the discharge port 21, the elastic component 63 returns to its natural state and causes the inner screen 62 to disengage from the sealing plate 65. At this time, the clear liquid entering the inner screen 62 through the discharge port 21 can pass through the rear end screen hole of the inner screen 62, the cavity between the rear end of the inner screen 62 and the rear end of the outer screen 61, and the rear end screen hole of the outer screen 61 in sequence, reducing the impact force of the yellow water on the inner screen 62, so as to ensure that the side screen hole of the inner screen 62 can be stably aligned with the side screen hole of the outer screen 61. In addition, the rear end and side of both the inner screen 62 and the outer screen 61 are provided with screen holes, which improves the separation efficiency of the yellow water.

[0035] like Figure 7 and Figure 8As shown, a top block 621 is installed on the inner wall of the inner mesh 62. The top block 621 has a second inclined surface 622. When the elastic component 63 is in its natural state, the end of the top block 621 with the second inclined surface 622 will extend out of the discharge port 21. During the process of the scraper 33 closing the discharge port 21, the front end of the scraper 33 will press the inner mesh 62 into the outer mesh 61 through the second inclined surface 622. That is, the front end of the scraper 33 contacts the second inclined surface 622 of the top block 621 with tangential force, efficiently converting rotational kinetic energy into vertical thrust, pushing the inner mesh 62 to slide axially within the outer mesh 61 until the screen holes are completely misaligned, providing a reliable mechanical guarantee for the opening and closing of the screen holes.

[0036] like Figure 3 , Figure 9 and Figure 10 As shown, the opening and closing door 64 is rotatably connected to the outlet 13. The opening and closing door 64 and the outlet 13 are connected together by a first torsion spring 641. A top rod 642 is installed on the upper surface of the opening and closing door 64. The upper end of the top rod 642 is provided with a first inclined surface 643.

[0037] During the process of the scraper 33 closing the discharge port 21, the scraper 33 will press the inner screen 62 deep into the outer screen 61 through the second inclined surface 622, so that the sieve holes on the side of the inner screen 62 are misaligned with the sieve holes on the side of the outer screen 61, thereby isolating the inner screen 62 from the inside of the separation tank 1; and the scraper 33 will also press the top rod 642 into the discharge port 21 through the first inclined surface 643, so that the opening and closing door 64 flips down and the discharge port 13 will be automatically exposed, so that the clear liquid mixed with fiber residue or pit mud particles on the inside of the inner screen 62 can be discharged from the discharge port 13; when the scraper 33 is removed from the discharge port 21, the first torsion spring 641 will return to its natural state and cause the top rod 642 to extend out of the discharge port 21, and the opening and closing door 64 will automatically close the discharge port 13 to prevent the yellow water that has entered the inner screen 62 through the discharge port 21 from leaking from the discharge port 13.

[0038] like Figure 8 and Figure 9 As shown, the scraper 33 has a cavity 331 on the side facing the filter plate 2, and the front end of the scraper 33 has a groove 332 that communicates with the cavity 331. A slide plate 34 is slidably embedded in the groove 332. The sliding direction of the slide plate 34 is perpendicular to the surface of the filter plate 2. The slide plate 34 is connected to the scraper 33 by a spring 341. The length direction of the spring 341 is perpendicular to the surface of the filter plate 2. The front surface of the filter plate 2 has a groove 22, and a magnetic block 23 is fixedly embedded in the groove 22.

[0039] During the process of the scraper 33 closing the discharge port 21, the push rod 642 will pass through the chute 332 and the cavity 331 in sequence and be pressed down by the rear end of the scraper 33, causing the opening and closing door 64 to disengage from the discharge port 13. At this time, the discharge port 13 will be exposed, allowing the clear liquid mixed with fiber residue or pit mud particles on the inner side of the inner mesh 62 to be discharged from the discharge port 13. The arrangement of the chute 332 and the cavity 331 avoids the front end of the scraper 33 pressing down on the push rod 642, because at this time the scraper 33 has not yet closed the discharge port 21. If the discharge port 13 is lifted... If the front is exposed, more yellow water will be discharged through the discharge port 13, increasing the collection volume of filter box 4 and collection box 5. Workers will need to clean filter box 4 and collection box 5 more frequently, thus increasing the labor intensity of workers. However, the downward pressing rod 642 at the rear end of scraper 33 makes the closing time of discharge port 21 extremely close to the opening time of discharge port 13, minimizing the amount of yellow water discharged from discharge port 13. Workers can clean filter box 4 and collection box 5 less frequently, thus reducing the labor intensity of workers.

[0040] After the scraper 33 is closed at the discharge port 21, the magnetic block 23 will magnetically fix the slide plate 34 to the front surface of the filter plate 2. The slide plate 34 will be closed in the chute 332, thereby isolating the cavity 331 from the inside of the separation tank 1, so as to prevent the yellow water in the separation tank 1 from entering the inside of the inner screen 62 through the chute 332 and the cavity 331, and prevent the yellow water from leaking from the discharge port 13.

[0041] When the scraper 33 is disengaged from the discharge port 21, the magnetic block 23 will no longer magnetically attract the slide plate 34. At this time, the spring 341 will return to its natural state and cause the slide plate 34 to move away from the front surface of the filter plate 2. At this time, the movement trajectory of the scraper 33 and the slide plate 34 will no longer cover the top rod 642, so as to prevent the front end of the scraper 33 from pushing the opening and closing door 64 to open through the top rod 642.

[0042] like Figure 3 As shown, the bottom of the separation tank 1 is provided with a first guide surface 14 located between the filter plate 2 and the impurity outlet 13. The height of the first guide surface 14 gradually decreases from the filter plate 2 towards the impurity outlet 13. The upper surface of the opening and closing door 64 is provided with a second guide surface 644. The height of the second guide surface 644 gradually decreases from the hinge end of the opening and closing door 64 towards the flip end of the opening and closing door 64. Through the guiding effect of the first guide surface 14 and the second guide surface 644, the fiber residue and pit mud particles on the bottom wall of the separation tank 1 and the upper surface of the opening and closing door 64 can converge towards the flip end of the opening and closing door 64 under the action of gravity. After the opening and closing door 64 is opened, the fiber residue and pit mud particles can be discharged through the impurity outlet 13 immediately, avoiding the residue of fiber residue and pit mud particles inside the inner mesh 62.

[0043] like Figures 10 to 13As shown, the filter plate 2 has a rotating cavity 24 inside, and a locking block 25 is rotatably connected inside the rotating cavity 24. The locking block 25 is arranged in a "V" shape and is connected to the rotating cavity 24 by a second torsion spring 26. The top rod 642 has a locking groove 645. During the process of the scraper 33 closing the discharge port 21, the rear end of the scraper 33 will press the locking block 25 into the rotating cavity 24 and press the top rod 642 into the discharge port 21. The locking block 25 will rotate and disengage from the slot 645. After the scraper 33 disengages from the discharge port 21, the first torsion spring 641 will return to its natural state and cause the top rod 642 to extend out of the discharge port 21. The top rod 642 will drive the opening and closing door 64 to close the discharge port 13. The second torsion spring 26 will return to its natural state and cause one end of the locking block 25 to extend out of the rotating cavity 24. The other end of the locking block 25 will rotate and engage in the slot 645, so that the top rod 642 is engaged and fixed to ensure the stability of the opening and closing door 64 when it is closed in the discharge port 13, thereby preventing the opening and closing door 64 from shifting under the pressure of the yellow water.

[0044] The implementation principle of a separation device in this application embodiment is as follows: During the separation process of yellow water, yellow water enters the separation tank 1 through the inlet pipe 11. The front filter plate 2 filters and intercepts fiber residue, and the rear filter plate 2 filters and intercepts pit mud particles. The clear liquid overflows and is discharged through the outlet pipe 12.

[0045] When a large amount of fiber residue or pit mud particles adhere to the surface of filter plate 2, affecting its filtration efficiency, the worker will start motor 31. Motor 31 will drive scraper 33 to rotate via shaft 32 to scrape off the fiber residue or pit mud particles adhering to the surface of filter plate 2. When scraper 33 starts to rotate, scraper 33 will disengage from discharge port 21, elastic component 63 will return to its natural state and cause inner screen 62 to move closer to discharge port 21. The side screen holes of inner screen 62 will correspond to the side screen holes of outer screen 61, and the bottom screen holes of inner screen 62 will no longer be closed by sealing plate 65. Yellow water in separation tank 1 and fiber residue or pit mud particles scraped off by scraper 33 can enter inner screen through discharge port 21. Inside the inner screen 62, fiber residue or pit mud particles will be filtered and retained by the inner screen 62, and the clear liquid will pass through the inner screen 62 and the outer screen 61 and overflow through the liquid outlet pipe 12. At the same time, the first torsion spring 641 will return to its natural state and cause the top rod 642 to extend out of the discharge port 21. The opening and closing door 64 will automatically close at the discharge port 13 to prevent the yellow water that enters the inner screen 62 through the discharge port 21 from leaking out of the discharge port 13. In addition, the second torsion spring 26 will return to its natural state and cause one end of the locking block 25 to extend out of the rotating cavity 24. The other end of the locking block 25 will rotate and engage in the slot 645, so that the top rod 642 is engaged and fixed to ensure the stability of the opening and closing door 64 when it is closed at the discharge port 13.

[0046] After the scraper 33 rotates once, it has completed the thorough cleaning of the surface of the filter plate 2. The scraper 33 will then re-close the discharge port 21. The magnetic block 23 will magnetically fix the slide plate 34 to the front surface of the filter plate 2. The slide plate 34 will be sealed in the groove 332, thus isolating the cavity 331 from the inside of the separation tank 1. The front end of the scraper 33 will press the inner screen 62 deep into the outer screen 61. The side screen holes of the inner screen 62 and the side screen holes of the outer screen 61 will be misaligned and sealed. The rear end of the inner screen 62 will abut against the sealing plate 65, which will seal the screen holes at the rear end of the inner screen 62, making... The interior of the filter unit 6 is completely isolated from the interior of the separation tank 1; the rear end of the scraper 33 will press the locking block 25 into the rotating chamber 24, so that the locking block 25 rotates and disengages from the locking groove 645. The rear end of the scraper 33 will also press the top rod 642 into the discharge port 21. The top rod 642 will drive the opening and closing door 64 to flip downward, so that the discharge port 13 is exposed. The clear liquid mixed with fiber residue or pit mud particles inside the inner screen 62 will be discharged into the filter box 4 through the discharge port 13. The fiber residue will accumulate in the fiber chamber 42, the pit mud particles will accumulate in the particle chamber 43, and the clear liquid will flow into the collection box 5.

[0047] In summary, this application achieves efficient resource utilization of high-viscosity yellow water through mechanical linkage innovation. Specifically, the frustum-shaped tapered filter plate 2 forms a centripetal turbulent flow field, efficiently separating fiber residue, pit mud particles, and clear liquid. At the same time, the scraper 33 precisely controls the misalignment and elastic reset of the inner mesh 62 within its rotation cycle, and links the opening and closing gate 64 to perform corresponding opening and closing actions. This allows the application to achieve efficient separation and collection of fiber residue, pit mud particles, and clear liquid without stopping the machine, thereby improving the separation efficiency of yellow water.

[0048] Example 2 This application also discloses a fermentation system for a rich and mellow aroma type of baijiu. For example... Figure 14 As shown, the fermentation system for the mellow-aroma type of baijiu includes the separation equipment, self-priming pump, fiber residue treatment equipment, cellar mud particle treatment equipment, and clear liquid treatment equipment as described in Example 1.

[0049] The separation equipment in Example 1 achieves efficient separation and collection of fiber residue, pit mud particles, and clear liquid without shutting down the system, thereby improving the separation efficiency of yellow water. A self-priming pump is connected to the pit and the separation equipment to pump yellow water from the pit and input it into the separation equipment for the separation and collection of fiber residue, pit mud particles, and clear liquid. The fiber residue treatment equipment includes a slag separator and a paddle dryer connected in sequence. The slag separator is used to sort and separate the fiber residue, and the paddle dryer is used to dry the fiber residue. The dried fiber residue can be recycled as fertilizer. The pit mud particle treatment equipment includes... The system includes a disc centrifuge and a spiral backfiller connected in sequence. The disc centrifuge is used to dewater the microparticles of the sludge, and the spiral backfiller is used to backfill the microparticles of the sludge into the curing layer of the sludge pit, thus realizing the recycling of the microparticles of the sludge. The clear liquid treatment equipment includes an EGSB anaerobic reactor and a decolorizing flotation tower connected in sequence. The EGSB anaerobic reactor is used to degrade the organic matter in the clear liquid and recover the biogas generated in the degradation process, thus realizing the recycling of the clear liquid. The decolorizing flotation tower is used to remove the color of the clear liquid and retain residual colloids and suspended solids. The treated clear liquid can be directly discharged.

[0050] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A separation device, characterized in that: The separation tank (1) is horizontally arranged and has an inlet pipe (11) and an outlet pipe (12). The separation tank (1) is provided with two filter plates (2) located between the inlet pipe (11) and the outlet pipe (12). The two filter plates (2) are arranged in sequence along the axial direction of the separation tank (1) and are used to filter fiber residue and particles respectively. The filter plate (2) is provided with a discharge port (21), and the separation tank (1) is provided with two discharge ports (13). The discharge ports (13) correspond one-to-one with the discharge ports (21) and are located between the discharge ports (21) and the liquid outlet pipe (12). A filter unit (6) is provided between the corresponding discharge ports (21) and discharge ports (13). The filter unit (6) includes an outer screen (61) disposed on the filter plate (2), an inner screen (62) is slidably embedded in the outer screen (61), the openings of the outer screen (61) and the inner screen (62) are both corresponding to the discharge port (21), and the sides of the outer screen (61) and the inner screen (62) are provided with sieve holes. The inner screen (62) is connected to the outer screen (61) through an elastic component (63), and an openable and closable door (64) is provided at the discharge port (13). The separation tank (1) is provided with a cleaning unit (3). The cleaning unit (3) includes a motor (31). The output shaft of the motor (31) is coaxially arranged with the separation tank (1) and coaxially connected to a rotating shaft (32). The rotating shaft (32) is provided with two scrapers (33) that respectively abut against the front surface of the corresponding filter plate (2). During the process of the scraper (33) closing the discharge port (21), the scraper (33) will press the inner net (62) into the outer net (61), so that the screen holes of the inner net (62) and the screen holes of the outer net (61) are misaligned and both are closed; when the scraper (33) is removed from the discharge port (21), the elastic component (63) will return to its natural state and cause the inner net (62) to move towards the discharge port (21), so that the screen holes of the inner net (62) correspond to the screen holes of the outer net (61).

2. The separation device according to claim 1, characterized in that: The opening and closing door (64) is rotatably connected to the outlet (13). The opening and closing door (64) and the outlet (13) are connected together by a first torsion spring (641). The opening and closing door (64) is provided with a top rod (642), and the top rod (642) is provided with a first inclined surface (643). During the process of the scraper (33) closing the discharge port (21), the scraper (33) will press the top rod (642) into the discharge port (21) through the first inclined surface (643), causing the opening and closing door (64) to flip down and the discharge port (13) to be exposed; when the scraper (33) is removed from the discharge port (21), the first torsion spring (641) will return to its natural state and cause the top rod (642) to extend out of the discharge port (21), and the opening and closing door (64) will close the discharge port (13).

3. The separation device according to claim 2, characterized in that: The scraper (33) has a cavity (331) on the side facing the filter plate (2), and a groove (332) is provided at the front end of the scraper (33). A sliding plate (34) is slidably embedded in the groove (332). The sliding plate (34) is connected to the scraper (33) by a spring (341). A magnetic block (23) is provided on the filter plate (2). During the process of the scraper (33) being closed in the discharge port (21), the top rod (642) will pass through the slide groove (332) and the cavity (331) in sequence and be pressed down by the rear end of the scraper (33), so that the opening and closing door (64) is disengaged from the discharge port (13). Then the magnetic block (23) will magnetically fix the slide plate (34), and the slide plate (34) will be closed in the slide groove (332), thereby isolating the cavity (331) from the inside of the separation bucket (1). When the scraper (33) is disengaged from the discharge port (21), the spring (341) will return to its natural state and cause the slide plate (34) to move away from the front surface of the filter plate (2).

4. The separation device according to claim 3, characterized in that: The inner net (62) is provided with a top block (621), and the top block (621) is provided with a second inclined surface (622). During the process of the scraper (33) being closed in the discharge port (21), the front end of the scraper (33) will press the inner net (62) into the outer net (61) through the second inclined surface (622).

5. A separation device according to claim 3, characterized in that: The filter plate (2) is provided with a rotating cavity (24), and a locking block (25) is rotatably connected inside the rotating cavity (24). The locking block (25) is set in a "V" shape, and the locking block (25) is connected to the rotating cavity (24) through a second torsion spring (26). The top rod (642) is provided with a locking groove (645). During the process of the scraper (33) being closed in the discharge port (21), the rear end of the scraper (33) will press the locking block (25) into the rotating cavity (24) and press the push rod (642) into the discharge port (21); when the scraper (33) is removed from the discharge port (21), the first torsion spring (641) will return to its natural state and cause the push rod (642) to extend out of the discharge port (21), the second torsion spring (26) will return to its natural state and cause one end of the locking block (25) to extend out of the rotating cavity (24), and the other end of the locking block (25) will be engaged in the slot (645).

6. The separation device according to claim 1, characterized in that: Both the inner net (62) and the outer net (61) have sieve holes at their rear ends. The outer net (61) has a sealing plate (65) located between the rear ends of the inner net (62) and the rear ends of the outer net (61). The sealing plate (65) and the rear ends of the outer net (61) are separated by a gap. When the scraper (33) presses the inner net (62) into the outer net (61), the rear end of the inner net (62) will abut against the sealing plate (65), and the sealing plate (65) will close the sieve holes at the rear end of the inner net (62).

7. The separation device according to claim 1, characterized in that: The bottom of the separation tank (1) is provided with a first guide surface (14) located between the filter plate (2) and the outlet (13). The height of the first guide surface (14) gradually decreases from the filter plate (2) to the outlet (13). The upper surface of the opening and closing door (64) is provided with a second guide surface (644). The height of the second guide surface (644) gradually decreases from the hinge end of the opening and closing door (64) to the flip end of the opening and closing door (64).

8. The separation device according to claim 1, characterized in that: It also includes a filter box (4) and a collection box (5) arranged at intervals. The filter box (4) is provided with a filter screen (41) for filtering fiber residue. The filter screen (41) divides the interior of the filter box (4) into a fiber cavity (42) and a particle cavity (43). The pore size of the fiber cavity (42) is larger than that of the particle cavity (43). The fiber cavity (42) is located below the front impurity outlet (13), and the particle cavity (43) is located below the rear impurity outlet (13).

9. A separation device according to claim 1, characterized in that: The filter plate (2) is arranged in a frustum shape, and the inner diameter of the filter plate (2) gradually decreases from the front end of the separation tank (1) to the rear end of the separation tank (1).

10. A fermentation system for a rich and mellow aroma type of baijiu, characterized in that: include: The separation device according to any one of claims 1-9 is used to separate yellow water into fibrous residue, pit mud particles and clear liquid; A self-priming pump is connected to the pit and the separation equipment to pump out the yellow water from the pit and input it into the separation equipment. The fiber residue treatment equipment includes a slag separator and a paddle dryer connected in sequence. The slag separator is used to sort and separate the fiber residue, and the paddle dryer is used to dry the fiber residue. The cellar mud particle treatment equipment includes a disc centrifuge and a spiral backfiller connected in sequence. The disc centrifuge is used to dewater the cellar mud particles, and the spiral backfiller is used to backfill the cellar mud particles into the cellar curing layer. The clear liquid treatment equipment includes an EGSB anaerobic reactor and a decolorizing air flotation tower connected in sequence. The EGSB anaerobic reactor is used to degrade organic matter in the clear liquid and recover the biogas produced in the degradation process. The decolorizing air flotation tower is used to remove the color of the clear liquid and retain residual colloids and suspended solids.

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