A fermentation and cultivation system for large-grain koji blocks

Abstract

This utility model belongs to the field of fermentation technology for large-grain koji blocks, specifically relating to a fermentation and cultivation system for large-grain koji blocks. The system includes a fermentation room, a circulating air subsystem, and a frame. The circulating air subsystem includes multiple air supply pipes evenly laid out within the fermentation room. Several rows of through holes are arranged on the upper part of the air supply pipes. One end of each air supply pipe is sealed, and the other end connects to a main air supply pipe. The main air supply pipe is connected to the air inlet of a return air pipe, and the other end of the return air pipe has a return air inlet. A fan is installed on the return air pipe. A grid plate is installed above the air supply pipes and the main air supply pipe. Multiple load-bearing supports are installed below the grid plate. A frame is installed on the upper surface of the grid plate for placing the koji blocks. This utility model uses an intelligently controlled circulating air subsystem to achieve uniform air supply to different locations within the fermentation room, eliminating the need for manual turning of the koji blocks and solving the problems of high labor intensity and high labor costs associated with manual turning.

Description

Technical Field

[0001] This utility model belongs to the field of fermentation technology of Daqu (a type of starter culture), specifically relating to a fermentation and cultivation system for Daqu. Background Technology

[0002] The production of Daqu (large koji) is a unique traditional technique in my country with a long history of thousands of years. It is an important component in the brewing of rice wine, vinegar, and baijiu (white liquor). Its production process has always followed traditional methods. The saying "koji is the bone of wine" determines the status and significance of Daqu in the brewing process.

[0003] Currently, in the brewing industry, apart from the production of Daqu (a type of starter culture), the production facilities for other processes have undergone tremendous changes, and have basically achieved mechanization, electrification, and intelligentization. Only the cultivation and fermentation of Daqu in the starter culture room has always been under manual operation and control.

[0004] The production of Daqu (a type of starter culture) blocks is carried out in a relatively enclosed, hot and humid environment. The various changes in climate throughout the year have a great impact on the temperature and humidity inside the starter culture room, which in turn affects the growth of mold and mildew in the starter culture blocks and the fermentation process, resulting in certain differences in the quality of different batches of finished starter culture blocks.

[0005] In traditional processes, the heat generated, heated, dissipated, and moisturized blocks in different locations vary in terms of heat generation, absorption, and dissipation. It is necessary to manually turn the blocks to exchange them (surface, inside, top, bottom) so that the heat and moisture received or released by the blocks tend to be the same. Each production batch requires more than ten manual turnings (labor-intensive) to obtain qualified blocks.

[0006] In traditional craftsmanship, the control of temperature and humidity in the curing room relies entirely on the experience of the workers. They close the doors and windows to increase the temperature and humidity, and open some windows to decrease the temperature and humidity. This results in inconsistent quality because each person and each batch has a different method.

[0007] In traditional craftsmanship, space must be reserved in the koji room for manual turning of koji blocks, resulting in low space utilization in the koji room. Utility Model Content

[0008] This invention provides a fermentation and cultivation system for large-grain koji blocks to address the above-mentioned problems.

[0009] To achieve the above objectives, the present invention adopts the following technical solution:

[0010] A fermentation and cultivation system for large-scale koji blocks includes a fermentation chamber, in which a circulating air subsystem and a frame are installed. The circulating air subsystem includes multiple air supply pipes evenly laid in the fermentation chamber. Several rows of through holes are arranged on the upper part of the air supply pipes. One end of each air supply pipe is sealed, and the other end is connected to a main air supply pipe. Both ends of the main air supply pipe are sealed. The main air supply pipe is connected to the air supply port of a return air pipe. A return air port is provided at the other end of the return air pipe. A fan is installed on the return air pipe. A grid plate is installed above the air supply pipes and the main air supply pipe. Multiple load-bearing supports are installed below the grid plate to support it. A frame is installed on the upper surface of the grid plate for placing the koji blocks.

[0011] Furthermore, from the side closer to the main air supply pipe towards the blocked side of the air supply pipe, the spacing between two adjacent through holes in the same row on the air supply pipe gradually decreases.

[0012] Furthermore, the air supply outlet and return air outlet are arranged diagonally opposite each other, and the air is circulated by a bottom supply and top return method. The return air outlet is located at the top of the curved room.

[0013] Furthermore, an electric heater is also installed on the return air duct.

[0014] Furthermore, a humidifier is installed inside the cursive room.

[0015] Furthermore, a temperature sensor and a humidity sensor are installed in the cursive room. Both the temperature sensor and the humidity sensor are electrically connected to the control cabinet to transmit temperature and humidity signals to the control cabinet. The control cabinet is also electrically connected to an electric heater and a humidifier to control the operation of the electric heater and the humidifier.

[0016] Furthermore, a fresh air duct is connected to the side of the return air duct near the return air inlet. A first electric air valve is installed in the fresh air duct, and a second electric air valve is installed in the side of the return air duct near the return air inlet. Both the first and second electric air valves are electrically connected to the control cabinet.

[0017] Furthermore, a ventilation opening is provided on one side of the ventilation room, and an exhaust fan is installed inside the ventilation opening. The exhaust fan is electrically connected to the control cabinet.

[0018] Furthermore, the frame includes multiple uprights, the lower ends of which are fitted into a base. Several supports are fitted onto the uprights, and pin holes are provided on the uprights. Limiting pins are installed in the pin holes to limit the position of the supports. Connecting holes are provided on both sides of the upper part of the supports, and bolts are installed in the connecting holes. A long connecting rod or a short connecting rod is provided between two adjacent supports on the same layer. The long connecting rod or the short connecting rod is fixedly connected to the support by bolts. A grid frame plate is installed on two adjacent long connecting rods, and the two adjacent long connecting rods are located on different supports. A groove is provided on the lower surface of the grid frame plate for engaging with the long connecting rod. The curved block is placed on the grid frame plate or the grid plate.

[0019] Compared with the prior art, the present invention has the following advantages:

[0020] This invention employs an intelligently controlled circulating air subsystem, providing a stable temperature and humidity environment for the curing room, unaffected by various climate changes throughout the year;

[0021] This utility model adopts an intelligent control circulating air subsystem that can achieve uniform air supply to different locations inside the curing room, eliminating the need for manual curing and solving the problems of high labor intensity and high labor costs associated with manual curing.

[0022] This utility model has two modes: internal circulation mode and external circulation mode. When used with an electric heater, humidifier and exhaust fan, it can meet the temperature and humidity requirements of different fermentation stages.

[0023] In this invention, the through holes opened on the air supply pipe gradually become denser from the side closest to the main air supply pipe towards the sealed side of the air supply pipe, which helps to ensure that the pressure is the same throughout the air supply pipe, thereby improving the uniformity of air supply. In this invention, the air supply pipes are not separated and are in an open state, so that a large static pressure box is formed under the entire grille plate, which can reorganize the airflow from each air supply pipe and then discharge it upward, further ensuring the uniformity of air supply.

[0024] This utility model's frame can be arbitrarily connected in series horizontally and in parallel vertically, achieving effective integration of the frame and making it suitable for curing rooms of different sizes. Furthermore, this utility model incorporates supports, long connecting rods, short connecting rods, and grid panels on the frame, enabling multi-layer support for the curing blocks and increasing the total number of stacked layers. This solves the problem of insufficient stacking layers caused by the low strength of the curing blocks themselves in traditional processes. Simultaneously, because this utility model provides uniform airflow and eliminates the need for manual turning of the curing blocks, the frame can be installed and the curing blocks placed simultaneously without requiring aisles for turning or observation. This maximizes the use of space within the curing room, offering a high space utilization rate. Due to the high space utilization rate and dense distribution of the curing blocks, the airflow organization within the curing room is more rational, avoiding airflow short-circuiting problems caused by retaining manual turning channels. Attached Figure Description

[0025] Figure 1 This is a top view of the present invention;

[0026] Figure 2 This is a schematic diagram of the installation of the air supply duct of this utility model;

[0027] Figure 3 This is a front view of the present invention;

[0028] Figure 4 This is a top view of the grating plate of this utility model;

[0029] Figure 5 This is a schematic diagram showing the placement of the curved blocks of this utility model;

[0030] Figure 6 This utility model Figure 5 A magnified view of a portion of circle A in the center;

[0031] Figure 7 This is a schematic diagram of the installation of the column and support of this utility model;

[0032] Figure 8 This is a schematic diagram of the series connection of the frame of this utility model;

[0033] Figure 9 This is a sectional view of the support of this utility model;

[0034] Figure 10 This is a top view of the support of this utility model;

[0035] Figure 11 This is a top view of the short connecting rod of this utility model;

[0036] Figure 12 This is a front view of the short connecting rod of this utility model;

[0037] Figure 13 This is a top view of the long connecting rod of this utility model;

[0038] Figure 14 This is a front view of the long connecting rod of this utility model;

[0039] Figure 15 This is a side view of the grid frame plate of this utility model;

[0040] Figure 16 This is a diagram of the control module of this utility model;

[0041] In the diagram, 1 is a curved room, 2 is an air supply duct, 3 is a through hole, 4 is a main air supply pipe, 5 is a return air duct, 7 is a fan, 8 is a grating plate, 9 is a load-bearing support, 10 is a frame, 11 is a base, 12 is an electric heater, 13 is a humidifier, 14 is a temperature sensor, 15 is a humidity sensor, 16 is a control cabinet, 17 is a fresh air duct, 18 is a No. 1 electric air valve, 19 is a No. 2 electric air valve, 20 is an exhaust fan, 21 is a column, 22 is a support, 23 is a limit pin, 24 is a connecting hole, 25 is a bolt, 26 is a long connecting rod, 27 is a short connecting rod, 28 is a curved block, and 29 is a grating plate. Detailed Implementation

[0042] To further illustrate the technical solution of this utility model, the following embodiments will be used to further explain this utility model.

[0043] like Figures 1 to 16As shown, a fermentation and cultivation system for large-scale koji blocks includes a koji room 1. A ventilation opening is provided on one side of the koji room 1, and an exhaust fan 20 is installed inside the ventilation opening. The exhaust fan 20 is electrically connected to a control cabinet 16. A circulating air subsystem and a frame 10 are installed inside the koji room 1. The circulating air subsystem includes multiple air supply pipes 2 evenly laid out inside the koji room 1. Several rows of through holes 3 are arranged on the upper part of the air supply pipes 2. One end of each air supply pipe 2 is sealed, and the other end is connected to a main air supply pipe 4. From the side closest to the main air supply pipe 4 towards the sealed side of the air supply pipe 2, the spacing between two adjacent through holes 3 in the same row on the air supply pipe 2 gradually decreases. Both ends of the main air supply pipe 4 are sealed. The main air supply pipe 4 is connected to the air supply port of a return air pipe 5, and a return air port is provided at the other end of the return air pipe 5. The supply air vent and return air vent are diagonally opposite each other, and the air is circulated by a bottom supply and top return method. The return air vent is located at the upper part of the curving room 1. A fan 7 and an electric heater 12 are installed on the return air duct 5. A fresh air duct 17 is connected to the side of the return air duct 5 near the return air vent. A first electric air valve 18 is installed in the fresh air duct 17. A second electric air valve 19 is installed in the side of the return air duct 5 near the return air vent. Both the first electric air valve 18 and the second electric air valve 19 are electrically connected to the control cabinet 16. A grille 8 is installed above the supply air duct 2 and the main supply air duct 4. Multiple load-bearing supports 9 are installed below the grille 8 to support it. A shelf 10 is installed on the upper surface of the grille 8 for placing the curving blocks 28. A humidifier 13 is installed in the curving room 1. A temperature sensor 14 and a humidity sensor 15 are installed in the cursive room 1. Both the temperature sensor 14 and the humidity sensor 15 are electrically connected to the control cabinet 16 to transmit temperature and humidity signals to the control cabinet 16. The control cabinet 16 is also electrically connected to the electric heater 12 and the humidifier 13 to control the operation of the electric heater 12 and the humidifier 13.

[0044] The frame 10 includes multiple columns 21, the lower ends of which are fitted into the base 11. Several supports 22 are fitted onto the columns 21. Pin holes are provided on the columns 21, and limit pins 23 are provided in the pin holes to limit the support 22. Connecting holes 24 are provided on both sides of the upper part of the support 22, and bolts 25 are provided in the connecting holes 24. A long connecting rod 26 or a short connecting rod 27 is provided between two adjacent supports 22 on the same layer. The long connecting rod 26 or the short connecting rod 27 is fixedly connected to the support 22 by bolts 25. A grid frame plate 29 is installed on two adjacent long connecting rods 26, and the two adjacent long connecting rods 26 are located on different supports 22. A groove 32 for engaging with the long connecting rod 26 is provided on the lower surface of the grid frame plate 29. The curved block 28 is placed on the grid frame plate 29 or the grid plate 8.

[0045] A method for fermenting and culturing large-grain koji blocks, including an internal circulation mode and an external circulation mode;

[0046] The internal circulation mode is as follows: the second electric air valve 19 is opened, the first electric air valve 18 is closed, the fan 7 is started, and the exhaust fan 20 is not started. The airflow in the curving chamber 1 is circulated through the air supply pipe 2, the main air supply pipe 4, and the return air pipe 5, so that the temperature and humidity in the curving chamber 1 are evenly distributed. At the same time, the temperature and humidity in the curving chamber 1 are collected by the temperature sensor 14 and the humidity sensor 15. If the temperature is lower than the set lower limit value, the electric heater 12 is turned on to heat the air in the curving chamber 1; if the humidity is lower than the set lower limit value, the humidifier 13 is turned on to humidify the air in the curving chamber 1.

[0047] The external circulation mode is as follows: During the curing process, both the temperature and humidity inside the curing chamber 1 will rise. If the temperature sensor 14 detects that the temperature inside the curing chamber 1 exceeds the set upper temperature limit, it first determines whether the electric heater 12 is on. If the electric heater 12 is on, it is turned off. Then, the first electric air valve 18 is opened and the second electric air valve 19 is closed to introduce fresh air into the curing chamber 1 to lower the temperature inside the curing chamber 1. Similarly, if the humidity sensor 15 detects that the humidity inside the curing chamber 1 exceeds the set upper humidity limit... If the value is not specified, first determine whether the humidifier 13 is turned on. If the humidifier 13 is turned on, turn it off. Then, open the first electric air valve 18 and close the second electric air valve 19 to introduce fresh air into the curving room 1 to reduce the humidity in the curving room 1. If the temperature or humidity in the curving room 1 still cannot be reduced within the set time even when the first electric air valve 18 is fully open and the second electric air valve 19 is fully closed, then turn on the exhaust fan 20 to increase the amount of hot and humid gas discharged from the curving room 1 in order to reduce the temperature and humidity.

[0048] The foregoing has shown and described the main features and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model.

[0049] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A fermentation and cultivation system for large-grain starter culture blocks, characterized in that: The system includes a curving room (1), in which a circulating air subsystem and a frame (10) are installed. The circulating air subsystem includes multiple air supply pipes (2) evenly laid in the curving room (1). Several rows of through holes (3) are arranged on the upper part of the air supply pipes (2). One end of the air supply pipe (2) is blocked, and the other end is connected to the main air supply pipe (4). Both ends of the main air supply pipe (4) are blocked. The main air supply pipe (4) is connected to the air supply port of the return air pipe (5). The other end of the return air pipe (5) is provided with a return air port. A fan (7) is provided on the return air pipe (5). A grid plate (8) is provided above the air supply pipe (2) and the main air supply pipe (4). Multiple load-bearing supports (9) are provided below the grid plate (8) to support the grid plate (8). A frame (10) is provided on the upper surface of the grid plate (8) for placing the curving blocks (28).

2. The fermentation and cultivation system for large-grain koji blocks according to claim 1, characterized in that: From the side closer to the main air supply pipe (4) toward the blocking side of the air supply pipe (2), the distance between two adjacent through holes (3) in the same row on the air supply pipe (2) gradually decreases.

3. The fermentation and cultivation system for large-grain koji blocks according to claim 1, characterized in that: The air supply outlet and the return air outlet are set diagonally opposite each other, and the air is circulated by the bottom supply and the top return. The return air outlet is located at the top of the curved room (1).

4. The fermentation and cultivation system for large-grain koji blocks according to claim 1, characterized in that: An electric heater (12) is also installed on the return air duct (5).

5. The fermentation and cultivation system for large-grain koji blocks according to claim 4, characterized in that: A humidifier (13) is installed in the room (1).

6. The fermentation and cultivation system for large-grain koji blocks according to claim 5, characterized in that: A temperature sensor (14) and a humidity sensor (15) are installed in the cursive room (1). The temperature sensor (14) and the humidity sensor (15) are electrically connected to the control cabinet (16) to transmit temperature and humidity signals to the control cabinet (16). The control cabinet (16) is also electrically connected to the electric heater (12) and the humidifier (13) to control the operation of the electric heater (12) and the humidifier (13).

7. The fermentation and cultivation system for large-grain koji blocks according to claim 5, characterized in that: A fresh air duct (17) is connected to the side of the return air duct (5) near the return air inlet. A first electric air valve (18) is installed in the fresh air duct (17), and a second electric air valve (19) is installed in the side of the return air duct (5) near the return air inlet. Both the first electric air valve (18) and the second electric air valve (19) are electrically connected to the control cabinet (16).

8. The fermentation and cultivation system for large-grain koji blocks according to claim 6, characterized in that: A ventilation opening is provided on one side of the flute room (1), and an exhaust fan (20) is installed in the ventilation opening. The exhaust fan (20) is electrically connected to the control cabinet (16).

9. The fermentation and cultivation system for large-grain koji blocks according to claim 1, characterized in that: The frame (10) includes multiple uprights (21), the lower ends of which are fitted into the base (11). Several supports (22) are fitted onto the uprights (21). Pin holes are also provided on the uprights (21), and limit pins (23) are installed in the pin holes to limit the movement of the supports (22). Connecting holes (24) are provided on both sides of the upper part of the supports (22), and bolts (25) are installed in the connecting holes (24). Between two adjacent supports (22) on the same layer... A long connecting rod (26) or a short connecting rod (27) is provided between them. The long connecting rod (26) or the short connecting rod (27) is fixedly connected to the support (22) by bolts (25). A grid plate (29) is installed on two adjacent long connecting rods (26), and the two adjacent long connecting rods (26) are located on different supports (22). A groove (32) for engaging with the long connecting rod (26) is provided on the lower surface of the grid plate (29). The curved block (28) is placed on the grid plate (29) or the grid plate (8).

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