Distiller's yeast drying system for distiller's yeast processing

Abstract

The invention discloses a distiller's yeast drying system for distiller's yeast processing, and relates to the technical field of distiller's yeast drying, the distiller's yeast drying system for distiller's yeast processing comprises a control mechanism adopted on the basis of the distiller's yeast drying system, a drying box is arranged on one side of the control mechanism, and a placing frame is arranged in the drying box; a plurality of drying mechanisms are arranged in the placing frame, and dust removal mechanisms are arranged at the bottoms of the multiple drying mechanisms. According to the device, the ventilation mechanism and the drying mechanism are reasonably arranged, through the arrangement of the ventilation mechanism and the drying mechanism, fresh air can be introduced through ventilation at the bottom of distiller's yeast, and air retention and overheating at the bottom of the distiller's yeast are prevented, so that sufficient oxygen supply can be provided, and the activity and fermentation process of microorganisms in the distiller's yeast is promoted; ventilation can also effectively control the humidity in the distiller's yeast and prevent excessive wetting, so that the drying degree of the distiller's yeast is guaranteed, and storage of the distiller's yeast is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of koji drying, and in particular to a koji drying system for koji processing. Background Art

[0002] Yeast is an indispensable raw material in the brewing of liquor. Yeast is added to liquor because a large number of microorganisms grow on it, as well as enzymes secreted by microorganisms. Enzymes have biological catalysis and can accelerate the conversion of starch and protein in grains into sugar and amino acids. Sugar is decomposed into ethanol, i.e. alcohol, under the action of yeast enzymes. The quality of yeast plays an important role in the quality of liquor brewed.

[0003] For example, the Chinese patent publication number is CN202011153351.8, and its name is A koji drying device for koji processing. The invention discloses a koji drying device for koji processing, including a frame mounting plate and a drying component arranged on the frame mounting plate, the drying component including a screening box and a hot air device, the screening box is fixedly mounted on the frame mounting plate by a vibration device and a screening device is arranged inside the screening box; the hot air device includes a hot air blower, an air supply pipe and an air outlet; and a feeding device is also connected to the top of the screening box. The present invention adopts an inclined first screen plate, a second screen plate and a material guide plate to screen the material into three levels for easy drying; adopts a hot air blower and an air outlet pipe, in conjunction with an air outlet, so that the material is fully in contact with the screen holes and heat, thereby enhancing the screening effect and improving the drying efficiency; adopts a vibration motor, a lifting rod and a compression spring to drive the screening box to form inertial vibration, which is convenient for the screening and drying of the material; adopts a feed hopper with a feed door to isolate external dust, and cooperates with a feed wheel and a feed motor to prevent material accumulation from blocking the discharge port.

[0004] The above invention patent has the following problems: the fermentation and drying of the koji requires a long period of static fermentation, and the control of air circulation and humidity is relatively strict. During the fermentation process of the koji, a large amount of heat will be stored at the bottom due to fermentation. The lack of a good ventilation environment will affect the entire fermentation process and thus affect the taste of the wine. In addition, the dust and bacteria in the air during the fermentation process will affect the fermentation of the koji. Therefore, the present application provides a koji drying system for koji processing to meet the needs. Summary of the invention

[0005] The purpose of the present application is to provide a koji drying system for koji processing, which can effectively solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a koji drying system for koji processing, comprising a control mechanism based on the koji drying system, a drying box is arranged on one side of the control mechanism, a placement rack is arranged inside the drying box, a plurality of drying mechanisms are arranged inside the placement rack, and a dust removal mechanism is arranged at the bottom of each of the plurality of drying mechanisms;

[0007] The dust removal mechanism comprises a ventilation mechanism for ventilation, a flow guide component for guiding airflow for dust removal is arranged at the bottom of the ventilation mechanism, and a dust removal component and an adsorption component for adsorbing dust are arranged between the flow guide component and the ventilation mechanism.

[0008] Preferably, the drying mechanism comprises a hollow plate arranged on the display rack, and a ventilation plate is arranged inside the hollow plate.

[0009] Preferably, the ventilation mechanism comprises a mounting plate arranged at the bottom of the hollow plate, a support pipe is arranged on the outer surface of the mounting plate, an air outlet pipe is arranged at the bottom of the mounting plate, an air extraction pipe is arranged on the outer surface of the support pipe, a guide ring is arranged at the bottom of the outer surface of the support pipe, an electric dust generator is arranged on the upper part of the outer surface of the support pipe, and an arc diaphragm is arranged on the outer surface of the electric dust generator;

[0010] One end of the air extraction pipe and the air outlet pipe are both connected to the control mechanism.

[0011] Preferably, the dust removal assembly comprises a supporting ring, and a plurality of guide vanes are arranged inside the supporting ring.

[0012] Preferably, the support ring is arranged between the arc diaphragm and the mounting plate, and the guide vane is in a circular ring shape.

[0013] Preferably, the adsorption assembly includes a support rod, a plurality of dust adsorption rings are arranged inside the support rod, the plurality of dust adsorption rings are all located inside the arc baffle, and the support rod is arranged between the arc baffle and the guide ring.

[0014] Preferably, the guide assembly comprises a bottom cover, an inner wall of the bottom cover is provided with a partition net, a top of the partition net is provided with a mounting ring, and an outer surface of the bottom cover is provided with a sealing ring.

[0015] Preferably, the mounting ring is arranged between the guide ring and the support tube, and the sealing ring contacts the inner wall of the arc diaphragm.

[0016] In summary, the technical effects and advantages of the present invention are as follows:

[0017] 1. The present invention has a reasonable structure in which a ventilation mechanism and a drying mechanism are arranged. The arrangement of the ventilation mechanism and the drying mechanism allows ventilation at the bottom of the koji to introduce fresh air and prevent air stagnation and overheating at the bottom of the koji. This can provide sufficient oxygen supply and promote the activity of microorganisms and the fermentation process in the koji. Ventilation can also effectively control the humidity in the koji and prevent excessive moisture, thereby ensuring the dryness of the koji and facilitating the storage and preservation of the koji.

[0018] 2. The present invention arranges an adsorption component, a guide component and a dust removal component on the top of the koji to remove dust and microorganisms that may exist on the top of the koji, which helps to keep the koji hygienic and clean and avoid possible pollution and bacterial infection during koji fermentation. The adsorption component and the dust removal component can also filter particulate matter in the air to prevent it from falling into the koji and affecting the normal progress of the fermentation process.

[0019] 3. The present invention is provided with a dust removal mechanism, a ventilation mechanism and a drying mechanism are arranged at the bottom of the koji, and an adsorption component, a guide component and a dust removal component are arranged on the top of the koji for air intake, so as to realize the circulation of air around the koji and keep the air fresh and clean. Such a setting is helpful to provide a suitable oxygen supply, control humidity, maintain the hygiene of the koji, and ultimately promote the fermentation and drying process of the koji, and improve the quality and shelf life of the koji. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 A schematic diagram of a three-dimensional structure from a first-person perspective of a koji drying system for koji processing;

[0022] Figure 2 A schematic diagram of a third-dimensional structure from a second perspective of a koji drying system for koji processing;

[0023] Figure 3 It is a schematic diagram of the three-dimensional connection structure of the drying mechanism and the dust removal mechanism;

[0024] Figure 4 It is a schematic diagram of the three-dimensional connection structure of the drying mechanism;

[0025] Figure 5 It is a schematic diagram of the three-dimensional connection structure of the dust removal mechanism;

[0026] Figure 6 It is a cross-sectional view of the three-dimensional connection structure of the dust removal mechanism;

[0027] Figure 7 A cross-sectional view of the three-dimensional connection structure of the ventilation mechanism from a first perspective;

[0028] Figure 8 A sectional view of the three-dimensional connection structure of the ventilation mechanism from a second viewing angle;

[0029] Fig. 9 It is a cross-sectional view of the three-dimensional connection structure of the dust removal component;

[0030] Fig.10 It is a cross-sectional view of the three-dimensional connection structure of the adsorption component;

[0031] Fig.11 A cross-sectional view of the three-dimensional connection structure of the air guide assembly and the ventilation mechanism;

[0032] Fig.12 It is a cross-sectional view of the three-dimensional connection structure of the guide component.

[0033] In the figure: 1. drying box; 2. control mechanism; 3. display rack; 4. drying mechanism; 41. hollow plate; 42. ventilation plate; 5. dust removal mechanism; 51. ventilation mechanism; 511. mounting plate; 512. exhaust pipe; 513. support pipe; 514. exhaust pipe; 515. arc partition; 516. guide ring; 517. electric dust generator; 52. dust removal assembly; 521. support ring; 522. guide plate; 53. adsorption assembly; 531. support rod; 532. dust adsorption ring; 54. guide assembly; 541. bottom cover; 542. partition net; 543. mounting ring; 544. sealing ring. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Embodiment 1

[0036] refer to Figure 1-Figure 12 A koji drying system for koji processing shown in the figure includes a control mechanism 2 adopted by the koji drying system, a drying box 1 is arranged on one side of the control mechanism 2, a display rack 3 is arranged inside the drying box 1, a plurality of drying mechanisms 4 are arranged inside the display rack 3, and a dust removal mechanism 5 is arranged at the bottom of each of the plurality of drying mechanisms 4.

[0037] It is worth noting that the koji drying system requires the cooperation of the control mechanism 2 and the drying box 1. The drying mechanism 4 and the dust removal mechanism 5 in the drying box 1 are used to dry the koji to a suitable moisture content. The koji drying process requires the preparation of fresh koji, which is the raw material for drying. Among them, the control mechanism 2 includes temperature control, ventilation system, humidity control, time control and dust removal system. The control mechanism 2 controls the operation of the drying mechanism 4 and the dust removal mechanism 5 to achieve the following system operations:

[0038] Temperature control: Appropriate temperature needs to be set during the drying process to ensure that the koji is dried under suitable temperature conditions. The temperature can be controlled through the control panel on the equipment.

[0039] Ventilation system: In order to ensure that the koji can be dried evenly, a good ventilation system is required. The ventilation system can be achieved through circulating air or exhaust air to ensure that the air flows fully in the equipment.

[0040] Humidity control: In addition to controlling the temperature, it is also necessary to control the appropriate humidity. The humidity control device can adjust the humidity in the equipment according to the set humidity range to ensure that the koji can be dried under appropriate humidity conditions.

[0041] Time control: Drying time is an important parameter. It is necessary to set the appropriate drying time according to the specific situation. You can use a timer or other time control device to ensure that the koji can be dried within the set time.

[0042] Dust removal system: During the drying process, a certain amount of dust will be generated. In order to ensure the cleanliness of the drying process and the quality of the koji, an appropriate dust removal system needs to be equipped to clean up the generated dust in time.

[0043] It is worth noting that the temperature control, humidity control and time control inside the control mechanism 2 are all existing technologies and will not be described in detail here.

[0044] The dust removal mechanism 5 includes a ventilation mechanism 51 for ventilation, a guide component 54 for guiding airflow for dust removal is arranged at the bottom of the ventilation mechanism 51, and a dust removal component 52 and an adsorption component 53 for adsorbing dust are arranged between the guide component 54 and the ventilation mechanism 51.

[0045] It is worth noting that when the koji is dried, the koji is placed on the display rack 3, and then the koji is dried by debugging the control mechanism 2. The control mechanism 2 can control the temperature and humidity in the drying box 1 to dry the koji, and the device for controlling the temperature and humidity belongs to the existing technology and will not be described in detail here. In the process of drying the koji, it is necessary to keep the air circulation in the drying box 1 and ensure that a large amount of dust does not enter the drying box 1;

[0046] The control mechanism 2 ensures air circulation in the drying box 1 by controlling the ventilation mechanism 51, so that the internal circulation of the drying box 1 reaches a suitable drying state of the wine koji, and the ventilation mechanism 51 is arranged at the bottom of the drying mechanism 4. Such a design can ventilate the bottom of the wine koji, so that the wine koji can be fully dried and provide a suitable fermentation environment for the fermentation of the wine koji;

[0047] After the ventilation mechanism 51 is ventilated, the dust removal component 52, the adsorption component 53 and the flow guide component 54 located above the koji, and the dust collection duct in the ventilation mechanism 51 inhale air, and then the air passes through Figure 7 The air circulates in the state shown, and the air is initially filtered by the dust removal component 52 to adsorb large particles of dust in the air. Then the air passes through the ventilation mechanism 51, and the mechanism inside the ventilation mechanism 51 applies a charge to the dust in the air. The charged dust passes through the adsorption component 53 and is adsorbed on the adsorption component 53. Then the filtered air is guided by the guide component 54 into the ventilation mechanism 51, and finally the filtered air passes through the ventilation mechanism 51 into the control mechanism 2.

[0048] Embodiment 2

[0049] This embodiment is based on the dust removal mechanism 5 proposed in the first embodiment. This embodiment provides a further technical solution of a ventilation mechanism 51, a dust removal component 52, an adsorption component 53 and a flow guide component 54.

[0050] The ventilation mechanism 51 includes a mounting plate 511 arranged at the bottom of the hollow plate 41, a support tube 513 is arranged on the outer surface of the mounting plate 511, an air outlet pipe 514 is arranged at the bottom of the mounting plate 511, and one end of the exhaust pipe 512 and the air outlet pipe 514 are both connected to the control mechanism 2.

[0051] The drying mechanism 4 comprises a hollow plate 41 arranged on the display rack 3 , and a ventilation plate 42 is arranged inside the hollow plate 41 .

[0052] It is worth noting that when the koji in the drying box 1 is dried but air circulation is ensured, the control mechanism 2 discharges the purified air through the air outlet pipe 514, and then the air enters the installation plate 511 through the air outlet pipe 514, and the installation plate 511 is Figure 7 The shape shown is arranged at the lower part of the hollow plate 41. When the air passes through the mounting plate 511, it will be discharged through the hollow vents arranged on the hollow plate 41. The air will be filtered by the ventilation plate 42 and then discharged. The ventilation plate 42 can filter the circulating air to prevent the ventilated air from affecting the fermentation and drying of the wine yeast. Moreover, because the wine yeast is placed on the hollow plate 41, ventilation from the bottom of the wine yeast can

[0053] An exhaust pipe 512 is provided on the outer surface of the support tube 513, a guide ring 516 is provided on the bottom of the outer surface of the support tube 513, an electrostatic precipitator 517 is provided on the upper part of the outer surface of the support tube 513, and an arc chute 515 is provided on the outer surface of the electrostatic precipitator 517;

[0054] The dust removal assembly 52 includes a support ring 521 , and a plurality of guide plates 522 are arranged inside the support ring 521 .

[0055] The support ring 521 is disposed between the arc diaphragm 515 and the mounting plate 511 , and the guide vane 522 is in a circular ring shape.

[0056] It is worth noting that when the air is dusted, the exhaust pipe 512 sucks air to form a negative pressure cavity in the support pipe 513, and then the air enters the support pipe 513 through the gap between the arc baffle 515 and the mounting plate 511. When the air passes between the arc baffle 515 and the mounting plate 511, it needs to be filtered by the guide plate 522 first, and the support ring 521 can support the shape of the guide plate 522 to filter the air, and the support ring 521 is in the shape of a partition net and will not hinder the circulation of air.

[0057] The shape of the guide plate 522 is designed to be Fig. 9 As shown in the shape, when air passes through the guide plate 522, part of the air will contact the guide plate 522, and the surface design of the guide plate 522 is relatively rough, which can absorb part of the air dust. The peculiar shape of the guide plate 522 can increase the contact area with the air and also play a role in guiding the air flow.

[0058] The adsorption assembly 53 includes a support rod 531 , and a plurality of dust adsorption rings 532 are arranged inside the support rod 531 . The plurality of dust adsorption rings 532 are all located inside the arc chute 515 . The support rod 531 is arranged between the arc chute 515 and the guide ring 516 .

[0059] Furthermore, the air in the above-mentioned air will pass through the guide plate 522 and then pass through the electric dust generator 517. The dust in the air will be charged after passing through the electric dust generator 517, so that the dust is more likely to be adsorbed on the surface of the object. The charged dust will pass through the dust adsorption ring 532 and the support rod 531. The support rod 531 is used to support the stable installation of the dust adsorption ring 532. When the dust passes through the dust adsorption ring 532, it will be more likely to be adsorbed on the dust adsorption ring 532 due to the attached charge.

[0060] After the dust in the air is adsorbed on the dust adsorption ring 532, most of the dust particles in the air can be filtered out to ensure that the drying space of the koji is clean enough to reduce the bacteria and dust in the air and will not affect the normal fermentation and drying of the koji.

[0061] The flow guide assembly 54 includes a bottom cover 541 . A partition net 542 is disposed on the inner wall of the bottom cover 541 . A mounting ring 543 is disposed on the top of the partition net 542 . A sealing ring 544 is disposed on the outer surface of the bottom cover 541 .

[0062] The mounting ring 543 is disposed between the guide ring 516 and the support tube 513 , and the sealing ring 544 abuts against the inner wall of the arc diaphragm 515 .

[0063] Furthermore, after the air passes through the dust adsorption ring 532, most of the bacteria and germs in the air are adsorbed on the dust adsorption ring 532, and then the air is filtered again through the partition 542 on the bottom cover 541 and sent to the support pipe 513, and finally the circulating air will be discharged through the exhaust pipe 512, and the discharged air will be sent to the control mechanism 2, and then discharged through the control mechanism 2;

[0064] When dust needs to be cleaned, the installation ring 543 can be directly taken out from under the guide ring 516, and the entire bottom cover 541 can be disassembled. The provided sealing ring 544 can play a good sealing role. After the bottom cover 541 is taken out, the dust adsorption ring 532 can be taken out for cleaning, so as to facilitate the next use. When disassembling the guide plate 522, it can be directly disassembled. The overall installation can be installed by the existing clamping method;

[0065] Among them, the installation plate 511 is used to blow ventilation at the bottom of the koji, and the disassembly guide plate 522 is arranged on the top of the koji and absorbs the surrounding air by guiding the gas. The cooperation between the disassembly guide plate 522 and the installation plate 511 can make the air form a circulation around the dried koji, which can accelerate the drying and fermentation of the koji.

[0066] Based on the above settings, a ventilation device is set at the bottom of the koji and a dust removal and sterilization device is set at the top to absorb air, which can provide the following benefits for the drying and fermentation of the koji:

[0067] The setting of the ventilation mechanism 51 and the drying mechanism 4 allows fresh air to be introduced into the bottom of the koji to prevent air stagnation and overheating at the bottom of the koji. This can provide sufficient oxygen supply to promote the activity of microorganisms and the fermentation process in the koji. Ventilation can also effectively control the humidity in the koji to prevent excessive moisture, thereby ensuring the dryness of the koji and facilitating the storage and preservation of the koji.

[0068] Moreover, the adsorption component 53, the guide component 54 and the dust removal component 52 are arranged on the top of the koji to remove dust and microorganisms that may exist on the top of the koji, which helps to keep the koji hygienic and clean and avoid possible contamination and bacterial infection during koji fermentation. The adsorption component 53 and the dust removal component 52 can also filter particulate matter in the air to prevent it from falling into the koji and affecting the normal progress of the fermentation process.

[0069] In general, a ventilation mechanism 51 and a drying mechanism 4 are arranged at the bottom of the koji, and an adsorption component 53, a guide component 54 and a dust removal component 52 are arranged at the top of the koji for air intake, so that the air circulation around the koji can be realized and the air can be kept fresh and clean. Such a setting helps to provide a suitable oxygen supply, control humidity, maintain the hygiene of the koji, and ultimately promote the fermentation and drying process of the koji, thereby improving the quality and shelf life of the koji.

[0070] In summary, the present invention, through the arrangement of the ventilation mechanism 51 and the drying mechanism 4, allows ventilation at the bottom of the koji to introduce fresh air, prevents air stagnation and overheating at the bottom of the koji, thereby providing sufficient oxygen supply, promoting the activity of microorganisms in the koji and the fermentation process. Ventilation can also effectively control the humidity in the koji and prevent excessive moisture, thereby ensuring the dryness of the koji, which is beneficial to the storage and storage of the koji. The present invention also arranges an adsorption component 53, a flow guide component 54 and a dust removal component 52 at the top of the koji to remove dust and microorganisms that may exist on the top of the koji, which helps to keep the koji hygienic and clean, and avoid the possibility of koji fermentation. The adsorption component 53 and the dust removal component 52 can also filter the particulate matter in the air to prevent it from falling into the koji and affecting the normal progress of the fermentation process. At the same time, the present invention is provided with a dust removal mechanism 5, and a ventilation mechanism 51 and a drying mechanism 4 are arranged at the bottom of the koji, and the adsorption component 53, the guide component 54 and the dust removal component 52 are arranged on the top of the koji for air intake, which can realize the circulation of air around the koji and keep the air fresh and clean. Such an arrangement helps to provide a suitable oxygen supply, control humidity, maintain the hygiene of the koji, and ultimately promote the fermentation and drying process of the koji, and improve the quality and shelf life of the koji.

[0071] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A koji drying system for koji processing, characterized in that: The invention comprises a control mechanism (2) adopted by a koji drying system, a drying box (1) is arranged on one side of the control mechanism (2), a placement rack (3) is arranged inside the drying box (1), a plurality of drying mechanisms (4) are arranged inside the placement rack (3), and a dust removal mechanism (5) is arranged at the bottom of each of the plurality of drying mechanisms (4); The dust removal mechanism (5) comprises a ventilation mechanism (51) for ventilation, a flow guide component (54) for guiding airflow for dust removal is arranged at the bottom of the ventilation mechanism (51), and a dust removal component (52) and a suction component (53) for adsorbing dust are arranged between the flow guide component (54) and the ventilation mechanism (51).

2. The koji drying system for koji processing according to claim 1, characterized in that: The drying mechanism (4) comprises a hollow plate (41) arranged on the placement rack (3), and a ventilation plate (42) is arranged inside the hollow plate (41).

3. The koji drying system for koji processing according to claim 1, characterized in that: The ventilation mechanism (51) comprises a mounting plate (511) arranged at the bottom of the hollow plate (41); a support pipe (513) is arranged on the outer surface of the mounting plate (511); an air outlet pipe (514) is arranged at the bottom of the mounting plate (511); an air extraction pipe (512) is arranged on the outer surface of the support pipe (513); a guide ring (516) is arranged at the bottom of the outer surface of the support pipe (513); an electrostatic precipitator (517) is arranged on the upper portion of the outer surface of the support pipe (513); and an arc diaphragm (515) is arranged on the outer surface of the electrostatic precipitator (517); One end of the air extraction pipe (512) and the air outlet pipe (514) are both connected to the control mechanism (2).

4. The koji drying system for koji processing according to claim 1, characterized in that: The dust removal assembly (52) comprises a support ring (521), and a plurality of guide plates (522) are arranged inside the support ring (521).

5. The koji drying system for koji processing according to claim 4, characterized in that: The support ring (521) is arranged between the arc partition plate (515) and the mounting plate (511), and the guide plate (522) is in a circular ring shape.

6. The koji drying system for koji processing according to claim 1, characterized in that: The adsorption assembly (53) comprises a support rod (531), a plurality of dust adsorption rings (532) are arranged inside the support rod (531), the plurality of dust adsorption rings (532) are all located inside the arc baffle (515), and the support rod (531) is arranged between the arc baffle (515) and the guide ring (516).

7. The koji drying system for koji processing according to claim 1, characterized in that: The flow guide assembly (54) comprises a bottom cover (541), the inner wall of the bottom cover (541) is provided with a partition net (542), the top of the partition net (542) is provided with a mounting ring (543), and the outer surface of the bottom cover (541) is provided with a sealing ring (544).

8. The koji drying system for koji processing according to claim 7, characterized in that: The mounting ring (543) is arranged between the guide ring (516) and the support tube (513), and the sealing ring (544) contacts the inner wall of the arc diaphragm (515).

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