Detachable stacking fermentation device for cylindrical Maotai-flavor yeast

Abstract

The utility model relates to the technical field of wine brewing, in particular to a cylindrical sauce-flavor yeast detachable stacking fermentation device which comprises a bottom-layer yeast frame, a middle-layer yeast frame and a top-layer yeast frame which are sequentially arranged from bottom to top, and cylindrical yeast blanks are mounted in the bottom-layer yeast frame, the middle-layer yeast frame and the top-layer yeast frame for stacking cultivation fermentation. The space utilization rate of the fermentation room can be increased, meanwhile, the hollow structure is beneficial to air flow, heat preservation and moisture preservation in the early stage and moisture removal in the later stage of stacking fermentation are facilitated, and sauce-flavor yeast production can be achieved even if yeast is not turned over; the bottom-layer curved frame, the middle-layer curved frame and the top-layer curved frame are detachably connected together, the stacking fermentation device can be transferred to a fermentation room for dense stacking through an automatic transfer robot, and the vertical positions of the bottom-layer curved frame, the middle-layer curved frame and the top-layer curved frame can be exchanged through a mechanical arm to realize yeast turning operation, so that the labor intensity of workers can be remarkably reduced; and mechanized, automatic, large-scale and standardized production of the sauce-flavor yeast is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of wine making, in particular to a cylindrical detachable stacking fermentation device for sauce-flavored Daqu. Background Art

[0002] Maotai Daqu provides the bacterial, enzyme and material systems required for the production of Maotai-flavor liquor, and has an important contribution to the style and quality of Maotai-flavor liquor. The production process of Maotai Daqu mainly includes: wheat tempering, wheat crushing, mother koji addition, water mixing, koji blank forming, koji drying, koji placement in the room for pile fermentation, koji turning, koji removal and storage. From wheat tempering to koji blank forming, mechanization or automation has been basically achieved, while the Maotai Daqu pile fermentation still uses the traditional manual koji placement and stacking method, which requires the use of a large amount of straw, resulting in the need for manual operation to achieve the processes of koji placement, koji turning and koji removal. In the traditional koji pile fermentation process, the fermentation temperature and moisture content of the koji blanks in the upper, middle and lower layers, as well as the outer and inner layers are inconsistent. After a certain period of fermentation, the koji needs to be turned manually, up and down, inside and outside, to ensure that the fermentation state of each layer of koji blanks is consistent and uniform. Manual turning over of the fermented koji is labor-intensive and has low production efficiency. In addition, the temperature and humidity in the fermentation room are high, the dust is high, and the working environment is poor. At the same time, a large amount of waste straw is produced, which limits the high-efficiency, mechanized and automated production of Maotai-flavor Daqu. Utility Model Content

[0003] In order to overcome the above-mentioned shortcomings of the existing stacking fermentation method, the technical problem to be solved by the utility model is to provide a cylindrical detachable stacking fermentation device of sauce-flavored Daqu which is conducive to mechanized turning over of the koji.

[0004] The utility model solves the technical problem by adopting the following technical scheme: a cylindrical detachable stacking fermentation device of sauce-flavored Daqu, comprising a bottom curved frame, a middle curved frame and a top curved frame arranged in sequence from bottom to top, the bottom curved frame comprising a bottom supporting frame, a bottom side plate, a bottom door plate and a bottom partition plate, the bottom side plates are arranged on the left and right sides of the bottom supporting frame, the bottom door plate can be opened and arranged on the front and back sides of the bottom supporting frame, the bottom partition plate is horizontally arranged in the bottom supporting frame, the upper surface of the bottom partition plate is connected with a plurality of bottom porous semicircular curved baskets arranged side by side, the openings of the bottom porous semicircular curved baskets face upward, the lower end of the bottom supporting frame is connected with a supporting leg, the upper end of the bottom supporting frame is connected with a bottom guide positioning block, and the bottom side plates, the bottom door plates and the bottom partition plate are all hollow structures;

[0005] The middle-layer curved frame includes a middle-layer support frame, middle-layer side plates, middle-layer door panels, and middle-layer partition plates. The middle-layer side plates are arranged on the left and right sides of the middle-layer support frame. The middle-layer door panels are movably arranged on the front and back sides of the middle-layer support frame. The middle-layer partition plates are horizontally arranged inside the middle-layer support frame. A plurality of first middle-layer porous semi-circular baskets are connected and arranged on the upper surface of the middle-layer partition plate side by side. A plurality of second middle-layer porous semi-circular baskets are connected and arranged on the lower surface of the middle-layer partition plate side by side. The openings of the first middle-layer porous semi-circular baskets face upward, and the openings of the second middle-layer porous semi-circular baskets face downward. A middle-layer connection pin is connected and arranged at the lower end of the middle-layer support frame. A middle-layer guiding and positioning block is connected and arranged at the upper end of the middle-layer support frame. A plurality of middle-layer curved frames can be overlapped together through the plug-in fit between the middle-layer guiding and positioning blocks and the middle-layer connection pins. And a first middle-layer porous semi-circular basket corresponds to a second middle-layer porous semi-circular basket in the up-and-down position. The lowermost middle-layer curved frame is arranged on the bottom-layer curved frame through the plug-in fit between the middle-layer connection pin and the bottom-layer guiding and positioning block. And a second middle-layer porous semi-circular basket corresponds to a bottom-layer porous semi-circular basket in the up-and-down position. The middle-layer side plates, middle-layer door panels, and middle-layer partition plates are all of a hollow structure;

[0006] The top-layer curved frame includes a top-layer support frame, top-layer side plates, top-layer door panels, and top-layer partition plates. The top-layer side plates are arranged on the left and right sides of the top-layer support frame. The top-layer door panels are movably arranged on the front and back sides of the top-layer support frame. The top-layer partition plates are horizontally arranged inside the bottom-layer support frame. A plurality of top-layer porous semi-circular baskets are connected and arranged on the lower surface of the top-layer partition plate side by side. The openings of the top-layer porous semi-circular baskets face downward. Legs are connected and arranged at the upper end of the top-layer support frame. A top-layer connection pin is connected and arranged at the upper end of the top-layer support frame. The top-layer support frame is arranged on the uppermost middle-layer curved frame through the plug-in fit between the top-layer connection pin and the middle-layer guiding and positioning block. And a top-layer porous semi-circular basket corresponds to a first middle-layer porous semi-circular basket in the up-and-down position. The top-layer side plates, top-layer door panels, and top-layer partition plates are all of a hollow structure.

[0007] Furthermore, the bottom-layer support frame includes a plurality of bottom-layer columns spaced around the bottom-layer partition plate. The middle-layer support frame includes a plurality of middle-layer columns spaced around the middle-layer partition plate. The top-layer support frame includes a plurality of top-layer columns spaced around the top-layer partition plate. One bottom-layer column, one middle-layer column, and one top-layer column correspond to each other in the up-and-down position.

[0008] Furthermore, one bottom-layer door panel made of a perforated plate is provided on each of the front and back sides of the bottom-layer support frame. The bottom-layer door panel is connected to the bottom-layer column through a hinge on the left or right side;

[0009] One middle-layer door panel made of a perforated plate is provided on each of the front and back sides of the middle-layer support frame. The middle-layer door panel is connected to the middle-layer column through a hinge on the left or right side;

[0010] On the front and back sides of the top support frame, there is a top door panel made of perforated plate on each side. The top door panel is connected to the top column through hinges on the left or right side.

[0011] Furthermore, the structures of the bottom partition board, the middle partition board, and the top partition board are the same. The bottom partition board includes an outer frame, multiple support rods arranged vertically and horizontally within the outer frame, and a perforated plate laid on the outer frame and the support rods.

[0012] Furthermore, heat preservation and moisture preservation layers are provided on the inner sides of the bottom side plate and the bottom door panel, as well as on the upper and lower surfaces of the bottom partition board;

[0013] Heat preservation and moisture preservation layers are provided on the inner sides of the middle side plate and the middle door panel, as well as on the upper and lower surfaces of the middle partition board;

[0014] Heat preservation and moisture preservation layers are provided on the inner sides of the top side plate and the top door panel, as well as on the upper and lower surfaces of the top partition board.

[0015] Furthermore, the bottom curved frame, the middle curved frame, and the top curved frame are all made of stainless steel.

[0016] Furthermore, the heat preservation and moisture preservation layer is a straw curtain or a fiber curtain.

[0017] Furthermore, the bottom porous semi-circular curved basket is arranged on the bottom partition board by welding. The first middle porous semi-circular curved basket and the second middle porous semi-circular curved basket are both arranged on the middle partition board by welding. The top porous semi-circular curved basket is arranged on the top partition board by welding.

[0018] Furthermore, reinforcing ribs are arranged around the bottom porous semi-circular curved basket, around the first middle porous semi-circular curved basket, and around the second middle porous semi-circular curved basket.

[0019] The beneficial effects of the present utility model are as follows: The detachable stacking fermentation device for cylindrical Jiangxiang Daqu of the present utility model includes a bottom koji frame, a middle koji frame, and a top koji frame arranged in sequence from bottom to top. The cylindrical koji cakes are installed in the bottom koji frame, the middle koji frame, and the top koji frame for stacking and culturing fermentation, which can improve the space utilization rate of the fermentation room. At the same time, the bottom side plates, bottom door plates, bottom partitions, middle side plates, middle door plates, middle partitions, top side plates, top door plates, and top partitions with a hollow structure are conducive to air flow, helping with heat preservation and moisture retention in the early stage of stacking fermentation and moisture discharge in the later stage. Even without turning the koji, the production of Jiangxiang Daqu can be achieved; the bottom koji frame, the middle koji frame, and the top koji frame are detachably connected together, and the stacking fermentation device can be transferred to the fermentation room for dense stacking by an automated transfer robot or the stacking fermentation device can be flipped 180° to achieve the koji turning operation. It can also adjust the upper and lower positions of the bottom koji frame, the middle koji frame, and the top koji frame by a robotic arm to achieve the koji turning operation, which can significantly reduce the labor intensity of workers and is conducive to the mechanized, automated, large-scale, and standardized production of Jiangxiang Daqu. Brief Description of the Drawings

[0020] Figure 1 is the overall structural schematic diagram of the present utility model;

[0021] Figure 2 is the side view schematic diagram of the present utility model;

[0022] Figure 3 is the structural schematic diagram of the bottom partition of the present utility model;

[0023] Figure 4 is the structural schematic diagram of the bottom koji frame of the present utility model;

[0024] Figure 5 is the structural schematic diagram of the middle koji frame of the present utility model;

[0025] Figure 6 is the structural schematic diagram of the top koji frame of the present utility model;

[0026] In the figure, the markings are: bottom koji frame 1, bottom support frame 11, bottom side plate 12, bottom partition 13, bottom porous semi-circular koji basket 14, bottom guiding and positioning block 15, middle koji frame 2, middle support frame 21, middle side plate 22, middle partition 23, first middle porous semi-circular koji basket 24, second middle porous semi-circular koji basket 25, middle connecting pin 26, middle guiding and positioning block 27, top koji frame 3, top support frame 31, top side plate 32, top partition 33, top porous semi-circular koji basket 34, top connecting pin 35, outer frame 41, support rod 42, mesh plate 43, leg 5, reinforcing rib 6. Detailed Embodiment

[0027] The present utility model will be further described below in conjunction with the drawings.

[0028] It should be noted that if there are directional indication terms in the present invention, such as up, down, left, right, front, and back directions and orientation terms, they are for the purpose of facilitating the description of the relative position relationship between components, and are not for the absolute position of the related components or the position relationship between components. They are only used to explain the relative position relationship and movement of the components in a certain posture. If the specific posture changes, the directional indication will also change accordingly. If there are terms related to quantity in the present invention, such as "multiple", "multiple", "several", etc., they specifically refer to two or more.

[0029] like Figures 1 to 6 As shown, the cylindrical detachable stacking fermentation device of sauce-flavored Daqu of the utility model comprises a bottom curved frame 1, a middle curved frame 2 and a top curved frame 3 which are arranged in sequence from bottom to top, the bottom curved frame 1 comprises a bottom supporting frame 11, a bottom side panel 12, a bottom door panel and a bottom partition 13, the bottom side panel 12 is arranged on the left and right sides of the bottom supporting frame 11, the bottom door panel can be opened and arranged on the front and rear sides of the bottom supporting frame 11, the bottom partition 13 is horizontally arranged in the bottom supporting frame 11, the upper surface of the bottom partition 13 is connected with a plurality of bottom porous semicircular curved baskets 14 arranged side by side, the openings of the bottom porous semicircular curved baskets 14 face upward, the lower end of the bottom supporting frame 11 is connected with a supporting leg 5, the upper end of the bottom supporting frame 11 is connected with a bottom guide positioning block 15, the bottom side panel 12, the bottom door panel and the bottom partition 13 are all hollow structures;

[0030] The middle curved frame 2 includes a middle supporting frame 21, a middle side panel 22, a middle door panel and a middle partition 23. The middle side panel 22 is arranged on the left and right sides of the middle supporting frame 21. The middle door panel can be opened and arranged on the front and rear sides of the middle supporting frame 21. The middle partition 23 is horizontally arranged in the middle supporting frame 21. The upper surface of the middle partition 23 is connected with a plurality of first middle porous semicircular curved baskets 24 arranged side by side. The lower surface of the middle partition 23 is connected with a plurality of second middle porous semicircular curved baskets 25 arranged side by side. The opening of the first middle porous semicircular curved basket 24 faces upward, and the opening of the second middle porous semicircular curved basket 25 faces downward. The lower end of the middle supporting frame 21 is connected with There is a middle-layer connecting pin 26, and a middle-layer guide positioning block 27 is connected to the upper end of the middle-layer support frame 21. A plurality of middle-layer curved frames 2 can be overlapped and arranged together through the plug-in cooperation of the middle-layer guide positioning block 27 and the middle-layer connecting pin 26, and a first middle-layer porous semicircular curved basket 24 corresponds to a second middle-layer porous semicircular curved basket 25 in the upper and lower positions. The middle-layer curved frame 2 at the lower end is arranged on the bottom-layer curved frame 1 through the plug-in cooperation of the middle-layer connecting pin 26 and the bottom-layer guide positioning block 15, and a second middle-layer porous semicircular curved basket 25 corresponds to a bottom-layer porous semicircular curved basket 14 in the upper and lower positions. The middle-layer side panels 22, the middle-layer door panels and the middle-layer partition panels 23 are all hollow structures;

[0031] The top curved frame 3 includes a top supporting frame 31, a top side panel 32, a top door panel and a top partition panel 33. The top side panel 32 is arranged on the left and right sides of the top supporting frame 31, and the top door panel can be opened on the front and rear sides of the top supporting frame 31. The top partition panel 33 is horizontally arranged in the bottom supporting frame 11. The lower surface of the top partition panel 33 is connected with a plurality of parallel top multi-porous semi-circular curved baskets 34, and the openings of the top multi-porous semi-circular curved baskets 34 face downward. The upper end of the top supporting frame 31 is connected with a supporting leg 5, and the upper end of the top supporting frame 31 is connected with a top connecting pin 35. The top supporting frame 31 is arranged on the uppermost middle-layer curved frame 2 through the plug-in cooperation of the top connecting pin 35 and the middle-layer guide positioning block 27, and a top multi-porous semi-circular curved basket 34 corresponds to a first middle-layer multi-porous semi-circular curved basket 24 in upper and lower positions. The top side panels 32, the top door panel and the top partition panel 33 are all hollow structures.

[0032] For example Figure 1As shown in the figure, a second middle-layer porous semi-circular basket 25 and a bottom-layer porous semi-circular basket 14 corresponding to each other in the up-and-down position form a cylindrical basket. A first middle-layer porous semi-circular basket 24 and a second middle-layer porous semi-circular basket 25 corresponding to each other in the up-and-down position form a cylindrical basket. A top-layer porous semi-circular basket 34 and a first middle-layer porous semi-circular basket 24 corresponding to each other in the up-and-down position form a cylindrical basket. The cylindrical basket refers to a basket with a cylindrical shape. Ventilation holes are provided on the surface of the cylindrical basket. The koji blocks are installed in the cylindrical basket for stacking and culturing fermentation. The shape of the koji blocks is also cylindrical. Through a large number of practices and tests, it is found that when the cylindrical koji blocks are installed in the porous cylindrical basket, the uniformity of the koji block fermentation can be improved, and the sauce aroma flavor can be enhanced.

[0033] The bottom-layer side plates 12, bottom-layer door plates, bottom-layer partitions 13, middle-layer side plates 22, middle-layer door plates, middle-layer partitions 23, top-layer side plates 32, top-layer door plates and top-layer partitions 33 are all of a hollow structure, which can facilitate oxygen ventilation and waste discharge, and realize the gas circulation and exchange during the process of stacking and culturing fermentation of koji blocks. The bottom-layer guiding and positioning blocks 15 and middle-layer guiding and positioning blocks 27 can both adopt a horn-shaped sleeve structure with a larger upper opening and a smaller lower opening. In this way, when stacking and fermenting the koji frames, it is easy to achieve the plug-in fit between the top-layer connecting pin 35 and the bottom-layer guiding and positioning block 15, and between the middle-layer connecting pin 26 and the middle-layer guiding and positioning block 27, which is convenient for installation and disassembly.

[0034] Since the stacking fermentation device has good permeability, as long as the ventilation and moisture discharge effects are ensured, even without turning the koji, high-quality fermented daqu can be obtained. At the same time, the stacking fermentation device can also cooperate with the koji-turning equipment for koji-turning operations. For example, the koji frame can be grasped by a robotic arm and flipped by 180°, and supported by the legs 5 at the upper and lower ends. Since multiple middle-layer koji frames 2 can be overlapped together through the plug-in fit between the middle-layer guiding and positioning blocks 27 and the middle-layer connecting pins 26, after fermentation for a period of time, due to the different temperature and humidity of the upper and lower layers, the fermentation degrees are different. At this time, the upper koji frame can be removed by the robotic arm and placed on the ground, and then the original lower-layer koji frame can be placed above the koji frame on the ground, so as to realize the exchange of the upper and lower koji frames, and avoid the problem of different fermentation degrees of koji blocks caused by uneven temperature and humidity in the fermentation room space.

[0035] For the specific structure of the stacking fermentation device, the present invention provides the following preferred solutions:

[0036] To ensure the stability of the overall structure of the stacking fermentation device and at the same time not affect the fermentation of koji blocks, the bottom-layer koji frame 1, middle-layer koji frame 2 and top-layer koji frame 3 are all made of stainless steel, such as 304 stainless steel.

[0037] For convenient stacking, the bottom support frame 11 can adopt a cuboid frame structure. The bottom support frame 11 includes multiple bottom columns spaced around the bottom partition 13. Specifically, four bottom columns can be used, and the four bottom columns are located on the four prisms of the cuboid frame. The middle support frame 21 can also adopt a cuboid frame structure. The middle support frame 21 includes multiple middle columns spaced around the middle partition 23. Specifically, four middle columns can be used, and the four middle columns are located on the four prisms of the cuboid frame. The top support frame 31 can also adopt a cuboid frame structure. The top support frame 31 includes multiple top columns spaced around the top partition 33. Specifically, four top columns can be used, and the four top columns are located on the four prisms of the cuboid frame. To ensure stability, one bottom column, one middle column, and one top column are vertically corresponding.

[0038] For ease of processing and manufacturing, as Figure 4 shown, the connected bottom column, bottom guide positioning block 15, and leg 5 are an integral structure. As Figure 5 shown, the connected middle column, middle connection pin 26, and middle guide positioning block 27 are an integral structure. As Figure 6 shown, the connected top column, top connection pin 35, and leg 5 are an integral structure.

[0039] For the door panels, to ensure the stability of the connection, it is preferably to provide a bottom door panel made of a perforated plate on each of the front and rear sides of the bottom support frame 11. The bottom door panel is connected to the bottom column through a hinge on the left or right side; a middle door panel made of a perforated plate is provided on each of the front and rear sides of the middle support frame 21. The middle door panel is connected to the middle column through a hinge on the left or right side; a top door panel made of a perforated plate is provided on each of the front and rear sides of the top support frame 31. The top door panel is connected to the top column through a hinge on the left or right side.

[0040] The bottom partition 13, middle partition 23, and top partition 33 mainly play a supporting role. For ease of processing and manufacturing, the structures of the bottom partition 13, middle partition 23, and top partition 33 are the same. Again, as Figure 3 shown, the bottom partition 13 includes an outer frame 41 and multiple support rods 42 arranged vertically and horizontally inside the outer frame 41, as well as a perforated plate 43 laid on the outer frame 41 and the support rods 42. The specific number of the support rods 42 is reasonably set according to the size of the bottom partition 13, and it can ensure that the perforated plate 43 can bear the weight of the curved blank without deformation.

[0041] In addition, in order to meet the temperature and humidity requirements for the fermentation of the koji blanks, heat and moisture preservation layers are provided on the inner sides of the bottom side plates 12 and bottom door plates, as well as on the upper and lower surfaces of the bottom partition plates 13; heat and moisture preservation layers are provided on the inner sides of the middle side plates 22 and middle door plates, as well as on the upper and lower surfaces of the middle partition plates 23; heat and moisture preservation layers are provided on the inner sides of the top side plates 32 and top door plates, as well as on the upper and lower surfaces of the top partition plates 33. The heat and moisture preservation layers can be curtain layers made of straw curtains or fiber materials. The heat and moisture preservation layers can be fixed by tying or pasting to prevent them from falling off during the koji turning process.

[0042] To improve the connection stability of the bottom multi-hole semi-circular koji baskets 14, the first middle multi-hole semi-circular koji baskets 24, the second middle multi-hole semi-circular koji baskets 25, and the top multi-hole semi-circular koji baskets 34, the bottom multi-hole semi-circular koji baskets 14 are arranged on the bottom partition plates 13 by welding, the first middle multi-hole semi-circular koji baskets 24 and the second middle multi-hole semi-circular koji baskets 25 are both arranged on the middle partition plates 23 by welding, and the top multi-hole semi-circular koji baskets 34 are arranged on the top partition plates 33 by welding. Furthermore, as shown in Figure 1 what is shown, reinforcing ribs 6 are arranged around the bottom multi-hole semi-circular koji baskets 14, around the first middle multi-hole semi-circular koji baskets 24, and around the second middle multi-hole semi-circular koji baskets 25, and the reinforcing ribs 3 further enhance the connection stability.

Claims

1. A cylindrical detachable pile fermentation device for Maotai-flavor Daqu, characterized by: The invention comprises a bottom curved frame (1), a middle curved frame (2) and a top curved frame (3) which are arranged in sequence from bottom to top. The bottom curved frame (1) comprises a bottom supporting frame (11), a bottom side panel (12), a bottom door panel and a bottom partition panel (13). The bottom side panel (12) is arranged on the left and right sides of the bottom supporting frame (11). The bottom door panel can be opened and arranged on the front and rear sides of the bottom supporting frame (11). The bottom partition panel (13) is arranged horizontally in the bottom supporting frame (11). The upper surface of the bottom partition panel (13) is connected to a plurality of bottom porous semicircular curved baskets (14) arranged side by side. The openings of the bottom porous semicircular curved baskets (14) face upward. The lower end of the bottom supporting frame (11) is connected to a supporting leg (5). The upper end of the bottom supporting frame (11) is connected to a bottom guide positioning block (15). The bottom side panel (12), the bottom door panel and the bottom partition panel (13) are all hollow structures. The middle layer curved frame (2) comprises a middle layer supporting frame (21), a middle layer side plate (22), a middle layer door plate and a middle layer partition plate (23), wherein the middle layer side plate (22) is arranged on the left and right sides of the middle layer supporting frame (21), the middle layer door plate is openably arranged on the front and rear sides of the middle layer supporting frame (21), the middle layer partition plate (23) is horizontally arranged in the middle layer supporting frame (21), the upper surface of the middle layer partition plate (23) is connected to a plurality of first middle layer porous semicircular curved baskets (24) arranged side by side, the lower surface of the middle layer partition plate (23) is connected to a plurality of second middle layer porous semicircular curved baskets (25) arranged side by side, the openings of the first middle layer porous semicircular curved baskets (24) face upward, the openings of the second middle layer porous semicircular curved baskets (25) face downward, and the lower end of the middle layer supporting frame (21) is connected to a plurality of first middle layer porous semicircular curved baskets (24) arranged side by side. A middle layer connecting pin (26) is provided, and a middle layer guiding and positioning block (27) is connected to the upper end of the middle layer supporting frame (21). A plurality of middle layer curved frames (2) can be overlapped and arranged together through the plug-in cooperation of the middle layer guiding and positioning block (27) and the middle layer connecting pin (26), and a first middle layer multi-hole semi-circular curved basket (24) and a second middle layer multi-hole semi-circular curved basket (25) correspond in upper and lower positions. The middle layer curved frame (2) located at the lowermost end is arranged on the bottom layer curved frame (1) through the plug-in cooperation of the middle layer connecting pin (26) and the bottom layer guiding and positioning block (15), and a second middle layer multi-hole semi-circular curved basket (25) and a bottom layer multi-hole semi-circular curved basket (14) correspond in upper and lower positions. The middle layer side panels (22), the middle layer door panels and the middle layer partition panels (23) are all hollow structures. The top curved frame (3) comprises a top supporting frame (31), a top side plate (32), a top door plate and a top partition plate (33), wherein the top side plate (32) is arranged on the left and right sides of the top supporting frame (31), the top door plate is openably arranged on the front and rear sides of the top supporting frame (31), the top partition plate (33) is horizontally arranged in the bottom supporting frame (11), and a plurality of top porous semicircular curved baskets (34) arranged side by side are connected to the lower surface of the top partition plate (33), and the openings of the top porous semicircular curved baskets (34) face downwards. The upper end of the top support frame (31) is connected with a support leg (5), and the upper end of the top support frame (31) is connected with a top connection pin (35). The top support frame (31) is arranged on the uppermost middle curved frame (2) through the plug-in cooperation of the top connection pin (35) and the middle guide positioning block (27), and a top porous semicircular curved basket (34) corresponds to a first middle porous semicircular curved basket (24) in upper and lower positions, and the top side panel (32), the top door panel and the top partition panel (33) are all hollow structures.

2. The columnar detachable Maotai-flavor Daqu stacking fermentation device according to claim 1, characterized in that: The bottom support frame (11) includes a plurality of bottom columns spaced around the bottom partition (13), the middle support frame (21) includes a plurality of middle columns spaced around the middle partition (23), and the top support frame (31) includes a plurality of top columns spaced around the top partition (33), wherein a bottom column, a middle column and a top column are arranged in corresponding upper and lower positions.

3. The columnar detachable Maotai-flavor Daqu stacking fermentation device according to claim 2, characterized in that: A bottom door panel made of a mesh plate is provided on each of the front and rear sides of the bottom support frame (11), and the bottom door panel is connected to the bottom column via a hinge on the left or right side; A middle layer door panel made of a mesh plate is provided on each of the front and rear sides of the middle layer support frame (21), and the middle layer door panel is connected to the middle layer column via a hinge on the left or right side; A top door panel made of a mesh plate is respectively arranged on the front and rear sides of the top support frame (31), and the top door panel is connected to the top column via a hinge on the left or right side.

4. The columnar detachable Maotai-flavor Daqu stacking fermentation device according to claim 1, characterized in that: The structures of the bottom partition (13), the middle partition (23) and the top partition (33) are the same. The bottom partition (13) comprises an outer frame (41), a plurality of support rods (42) arranged in a crisscross pattern inside the outer frame (41), and a mesh plate (43) laid on the outer frame (41) and the support rods (42).

5. The columnar detachable Maotai-flavor Daqu stacking fermentation device according to claim 1, characterized in that: The bottom side panels (12), the inner side surfaces of the bottom door panels, and the upper and lower surfaces of the bottom partition panels (13) are all provided with heat preservation and moisture retention layers; The middle layer side panels (22), the inner side surfaces of the middle layer door panels, and the upper and lower surfaces of the middle layer partition panels (23) are all provided with heat preservation and moisture retention layers; The top layer side panels (32), the inner side surfaces of the top layer door panels, and the upper and lower surfaces of the top layer partition panels (33) are all provided with heat preservation and moisture retention layers.

6. The columnar detachable Maotai-flavor Daqu stacking fermentation device according to claim 1, characterized in that: The bottom layer curved frame (1), the middle layer curved frame (2) and the top layer curved frame (3) are all made of stainless steel.

7. The columnar detachable Maotai-flavor Daqu stacking fermentation device according to claim 5, characterized in that: The thermal insulation and moisture retention layer is straw curtain or fiber curtain.

8. The columnar detachable Maotai-flavor Daqu stacking fermentation device according to claim 1, characterized in that: The bottom porous semicircular curved basket (14) is arranged on the bottom partition (13) by welding, the first middle porous semicircular curved basket (24) and the second middle porous semicircular curved basket (25) are arranged on the middle partition (23) by welding, and the top porous semicircular curved basket (34) is arranged on the top partition (33) by welding.

9. The columnar detachable Maotai-flavor Daqu stacking fermentation device according to any one of claims 1 to 8, characterized in that: Reinforcement ribs (6) are arranged around the bottom porous semicircular curved basket (14), around the first middle porous semicircular curved basket (24), and around the second middle porous semicircular curved basket (25).

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