Solid state fermentation cylinder and solid state fermentation method

Abstract

The invention discloses a solid state fermentation cylinder and a solid state fermentation method. The solid state fermentation cylinder comprises a cylinder body and a jacket provided with an upper port and a lower port, the upper end of the cylinder body is an upper end cover, a mixing system capable of lifting is arranged on the upper end cover, and according to the mixing system, a mixing frame is driven by a driving system. The mixing frame is formed by a wall surface scraper plate, a bottom surface scraper plate and mixing blades, the wall surface scraper plate and the bottom surface scraper plate form a frame-shaped structure, and the mixing blades are fixedly connected in the frame-shaped structure. The solid state fermentation cylinder and the solid state fermentation method effectively resolve the problem of low fermentation performance caused by uneven thickness and uneven heating of a feed layer. According to the solid state fermentation cylinder and the solid state fermentation method, all the processes from feeding to discharging are concentrated in the solid state fermentation cylinder, the process of transportation of materials is simplified, and the mixing system and a cooling thermal-insulation system of equipment are strengthened. Automatic bulk production of solid state fermentation can be achieved, the pure culture in the solid state fermentation process is effectively guaranteed, quality and safety of products are improved, and homogeneity property in the same bulk is guaranteed.

Description

technical field [0001] The invention relates to a fermentation equipment and a fermentation method thereof, in particular to a solid-state fermentation tank and a solid-state fermentation method. Background technique [0002] According to the different culture substrates in the fermentation process, the fermentation methods are divided into solid state fermentation and liquid state fermentation. Solid-state fermentation has a long history in human history, and the fermentation technology is relatively extensive, and generally does not require strict aseptic culture. Since the substrate concentration of solid-state fermentation reaches the limit, its fermentation output is generally more than 10 times that of liquid fermentation, and the post-treatment is simple. Generally, the entire substrate is used as a product, and there is little or no waste water and waste residue discharge during the production process. However, compared with liquid-state fermentation, the period of ...

AI Technical Summary

Problems solved by technology

[0004] In the patent with the publication number CN201506789U, the biconical tank is designed as a drum, the central shaft and the paddles on the central shaft are designed as hollow, and the steam is introduced from the middle of the tank. This design cannot guarantee that there is no sterilization. Dead corners, the fermentation effect is difficult to guarantee, and there is no mention of heat preservation measures

In the patent with the publication number CN102358883A, a horizontal shaft-type solid-state fermentation tank is introduced. The steam also enters from the upper port, while the material is at the lower part. It is also impossible to ensure that there are no dead ends for sterilization, and the fermentation effect is also difficult to guarantee. The fermentation process produces The heat cannot be taken away in time, which will affect the quality of fermentation

In the patent with the publication number CN102318789A, a drum-type solid-state fermentation tank for fermenting red yeast rice is introduced. The temperature of the fermentation tank is controlled by spraying the top, which is not efficient. The sampling port is designed in the lower part of the tank body, and The specific sampling method and preventive measures for bacterial contamination during sampling are not specified

In the published patents of solid-state fermentation tanks, there is no measure to ensure the uniform thickness of the material after stirring, which will inevitably make the thickness of the fermentation material layer uneven, and the uneven heating will affect the fermentation quality.

[0005] In short, the solid-state fermentation cycle is long, and mass and heat transfer is difficult, so the core issue in designing a solid-state fermentation tank is how to design an efficient mixing system, how to simplify material transportation, or take some measures to make up for these deficiencies. Easy to clean and sterilize, avoiding bacterial contamination during material transportation and cultivation

Images