Strong-flavor yeast culture device

Abstract

The utility model relates to the technical field of yeast culture, in particular to a strong-flavor yeast culture device which comprises a culture tank, a stirring device arranged in the culture tank and a condensing device communicated with the culture tank, a feed port is formed in the top of the culture tank, and a discharge port is formed in the bottom of the culture tank; a heating device is arranged in the culture tank or at the bottom of the culture tank; the stirring device comprises a stirring shaft and a stirring blade assembly arranged on the stirring shaft, the stirring blade assembly comprises a plurality of stirring blade wings which are uniformly arranged in the longitudinal direction of the stirring shaft, and a certain interval is formed between every two adjacent stirring blade wings; the condensing device comprises a condensing tank and a condensing pipe arranged in the condensing tank, the condensing pipe is communicated with the culture tank, the raw materials can be mixed more efficiently, the fermented grains can be extracted in time, and the fermented grains can be subjected to preliminary extraction and physical and chemical detection in time, so that the fermentation effect is evaluated.

Description

Technical Field

[0001] The utility model relates to the technical field of Daqu cultivation, and particularly relates to a cultivation device for Luzhou-flavor Daqu. Background Technique

[0002] Daqu is a saccharifying agent and fermenting agent for brewing liquor, mostly a kind of crude enzyme preparation in the shape of bricks. Ordinary Daqu is a Daqu inoculated with microorganisms completely naturally, while fortified Daqu is made by adding some missing microbial strains into natural Daqu blocks in a directional manner for mixed cultivation, so as to improve the indexes of saccharification rate and alcoholization rate.

[0003] The brewing methods of Daqu liquor are divided into two types: clearing residue and continuous residue. Most of the Fen-flavor liquor (light-flavor liquor) is produced by the clearing residue method, while the Luzhou-flavor liquor (strong-flavor liquor) and Maoxiang-flavor liquor (soy-sauce flavor liquor) are produced by the continuous residue method. Moreover, according to different ingredients during raw material steaming and fermented grains distillation in production, it can be further divided into processes such as clear steaming and clearing residue, clear steaming and continuous residue, mixed steaming and continuous residue, etc. However, the selection of these process methods should be determined according to the flavor type and style of the products produced. The distillation of Daqu liquor is to concentrate the components formed during the fermentation process and extract them from the fermented grains, so that the finished liquor has a certain alcohol content. At the same time, the flavor substances generated by fermentation are volatilized and concentrated into the liquor, so that the finished liquor forms a unique style.

[0004] In the prior art, a Chinese patent with the publication number CN213924725U discloses a liquid bacteria inoculation and cultivation device for liquor making and koji making. However, when culturing Daqu, the mixing effect of Daqu and microbial strains is not good, and it does not have a distillation and extraction device for fermented grains, which is not convenient for subsequent solid-phase microextraction and physical and chemical detection. Therefore, a new type of cultivation device for Luzhou-flavor Daqu is proposed. Content of the Utility Model

[0005] The purpose of the utility model is to provide a cultivation device for Luzhou-flavor Daqu, which can mix raw materials more efficiently, can extract fermented grains in time, is convenient for preliminary extraction and physical and chemical detection of fermented grains in time, so as to realize the evaluation of fermentation effect.

[0006] The embodiments of the utility model are realized through the following technical solutions:

[0007] A cultivation device for Luzhou-flavor Daqu includes a cultivation tank, a stirring device arranged in the cultivation tank, and a condensation device communicated with the cultivation tank.

[0008] The top of the cultivation tank is provided with a feed inlet, and the bottom is provided with a discharge outlet; a heating device is arranged inside or at the bottom of the cultivation tank.

[0009] The stirring device includes a stirring shaft and a stirring blade assembly disposed on the stirring shaft. The stirring blade assembly includes a plurality of stirring blade wings uniformly arranged longitudinally along the stirring shaft, and there is a certain interval between two adjacent stirring blade wings;

[0010] The condensing device includes a condensing tank and a condensing pipe disposed in the condensing tank. The condensing pipe is communicated with the culture tank.

[0011] Further, the stirring blade wing includes a stirring rod and a plurality of stirring support rods disposed on the bottom surface of the stirring rod. The plurality of stirring support rods are arranged at intervals.

[0012] Further, the stirring rod is arranged vertically or obliquely downward.

[0013] Further, the lengths of the plurality of stirring support rods increase sequentially from the inside to the outside.

[0014] Further, a discharge port is provided at the top of the culture tank, and the inlet end of the condensing pipe is communicated with the discharge port.

[0015] Further, the condensing pipe is arranged in a serpentine shape in the condensing tank, and the outlet end of the condensing pipe extends from the lower part of the condensing tank to the outside of the condensing tank.

[0016] Further, a heat preservation sleeve is provided on the outside of the culture tank, and a water inlet is provided below the heat preservation sleeve and a water outlet is provided above it.

[0017] Further, a temperature detector and a humidity detector are also provided on the culture tank.

[0018] The technical solution of the embodiment of the present utility model has at least the following advantages and beneficial effects:

[0019] The design of the present utility model is reasonable and the structure is simple. The raw materials in the culture tank are stirred by the stirring device. Since a plurality of stirring blade wings are uniformly arranged on the stirring shaft and there is a certain interval between two adjacent stirring blade wings, the raw materials at different liquid levels in the culture tank can be stirred more uniformly, and the stirring resistance of the stirring blade wings can be reduced, so that the stirring efficiency is higher and the mixing efficiency of the raw materials is higher; at the same time, a heating device is also provided inside or at the bottom of the culture tank to heat and ferment the daqu for easy distillation and extraction; more importantly, for the cultured daqu, a condensing device is connected to the rear end of the culture tank, so that the distilled extract in the culture tank is introduced into the condensing pipe and condensed in the condensing tank for preliminary extraction; in addition, the staff can take out the fermented grains from the discharge port for solid-phase microextraction and physical and chemical detection, so as to evaluate the fermentation effect. Description of the Drawings

[0020] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the accompanying drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following accompanying drawings only show certain embodiments of the present utility model and should not be regarded as limiting the scope. For those of ordinary skill in the art, other related accompanying drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 Schematic structural diagram of the Luzhou-flavor Daqu culture device provided by the embodiment of the present utility model;

[0022] Reference numerals: 1 - feed inlet, 2 - culture tank, 3 - heat preservation jacket, 31 - water inlet, 32 - water outlet, 4 - stirring shaft, 5 - stirring rod, 6 - stirring support rod, 61 - through hole, 7 - discharge outlet, 8 - condensation tank, 9 - condensation pipe, 10 - temperature detector, 11 - humidity detector. Detailed implementation manners

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Generally, the components of the embodiments of the present utility model described and shown in the accompanying drawings here can be arranged and designed in various different configurations.

[0024] Embodiment 1

[0025] A Luzhou-flavor Daqu culture device includes a culture tank 2, a stirring device disposed in the culture tank 2, and a condensation device communicated with the culture tank 2. A feed inlet 1 is provided at the top of the culture tank 2, and a discharge outlet 7 is provided at the bottom. The stirring device includes a stirring shaft 4 and a stirring blade assembly disposed on the stirring shaft 4. The stirring blade assembly includes a plurality of stirring blade wings arranged longitudinally and evenly along the stirring shaft 4, and there is a certain interval between adjacent two of the stirring blade wings. The condensation device includes a condensation tank 8 and a condensation pipe 9 disposed in the condensation tank 8, and the condensation pipe 9 is communicated with the culture tank 2.

[0026] Working principle: When the utility model is in use, raw materials are fed into the culture tank 2 through the feed inlet 1 at the top of the culture tank 2, and then the raw materials are mixed and stirred by a stirring device. Specifically, the motor connected to the stirring shaft 4 drives the stirring shaft 4 to rotate, and then drives the stirring blade wings to rotate, stirring the raw materials in the culture tank 2. Since a plurality of stirring blade wings are evenly arranged on the stirring shaft 4 and there is a certain interval between two adjacent stirring blade wings, the raw materials at different liquid levels in the culture tank 2 can be stirred more evenly, and the stirring resistance of the stirring blade wings can be reduced, making the stirring efficiency higher and the mixing efficiency of the raw materials higher. At the same time, a heating device such as a heating wire or a heating sleeve is provided inside or at the bottom of the culture tank 2 to heat and ferment the Daqu for easy distillation and extraction. More importantly, for the cultured Daqu, a condensing device is connected to the rear end of the culture tank 2, so that the distillation extract in the culture tank 2 is introduced through the condensing pipe 9 and condensed in the condensing tank 8 for preliminary extraction. In addition, the staff can take out the fermented grains from the discharge port 7 for solid-phase microextraction and physical and chemical detection, so as to evaluate the fermentation effect.

[0027] In this embodiment, the stirring blade wing includes a stirring rod 5 and a plurality of stirring support rods 6 arranged on the bottom surface of the stirring rod 5. The plurality of stirring support rods 6 are arranged at intervals, and a plurality of through holes 61 are provided on the stirring support rods 6. Through the cooperation of the stirring rod 5 and the stirring support rods 6, the raw materials can be stirred in a larger range, and the rate of mixing the raw materials evenly can be increased. The setting of the through holes 61 can reduce the resistance of the stirring support rods 6 and improve the working efficiency.

[0028] In this embodiment, the stirring rod 5 is arranged vertically or obliquely downward to form a circumferential vortex-shaped stirring of the raw materials, so that the mixing effect between the raw materials is better, which is beneficial to the later cultivation of Daqu.

[0029] In this embodiment, the lengths of the plurality of stirring support rods 6 increase in sequence from the inside to the outside, so as to stir the raw materials at different levels at the same liquid level, so that the mixing effect of the raw materials is more thorough.

[0030] In this embodiment, a discharge port 7 is provided at the top of the culture tank 2, and the inlet end of the condensing pipe 9 is communicated with the discharge port 7, which is convenient for the volatile flavor substances generated by fermentation to be concentrated into the wine and enter the condensing tank 8 for condensation and recovery extraction.

[0031] In this embodiment, the condenser tube 9 is arranged in a serpentine shape in the condensation tank 8. The outlet end of the condenser tube 9 extends from the lower part of the condensation tank 8 to the outside of the condensation tank 8. It should be noted that cooling water is passed through the condensation tank 8. An inlet can be provided at the bottom of the condensation tank 8 and an outlet at the upper part, so that the condensed water can circulate better in the condensation tank 8. In this way, the condenser tube 9 can extend the flow path of the liquid, thereby achieving a better condensation effect.

[0032] In this embodiment, a heat preservation sleeve 3 is provided on the outside of the culture tank 2. An inlet 31 is provided below the heat preservation sleeve 3 and an outlet 32 is provided above it. Hot water flows into the heat preservation sleeve 3 from the inlet 31 at the bottom and then flows out from the outlet 32 at the top, thereby increasing the flow path of the hot water in the heat preservation sleeve 3 and making the heating and heat preservation effect on the culture tank 2 better, improving the fermentation and culture effect of the Daqu.

[0033] In this embodiment, a temperature detector 10 and a humidity detector 11 are also provided on the culture tank 2, so that the temperature and humidity in the culture tank 2 can be monitored in real time, which is beneficial to understanding the culture environment in the culture tank 2, and thus the temperature can be adjusted more pertinently.

[0034] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A Luzhou-flavor Daqu cultivation device, characterized in that, It includes a culture tank, a stirring device arranged in the culture tank, and a condensation device communicated with the culture tank. The top of the culture tank is provided with a feed inlet, and the bottom is provided with a discharge outlet; a heating device is arranged inside or at the bottom of the culture tank. The stirring device includes a stirring shaft and a stirring blade assembly arranged on the stirring shaft. The stirring blade assembly includes a plurality of stirring blade wings uniformly arranged longitudinally along the stirring shaft, and there is a certain interval between adjacent two of the stirring blade wings. The condensation device includes a condensation tank and a condensation pipe arranged in the condensation tank. The condensation pipe is communicated with the culture tank.

2. The Luzhou-flavor Daqu culture device according to claim 1, wherein, The stirring blade wing includes a stirring rod and a plurality of stirring support rods arranged on the bottom surface of the stirring rod. The plurality of stirring support rods are arranged at intervals.

3. The Luzhou-flavor Daqu culturing device according to claim 2, wherein, The stirring rod is arranged vertically or obliquely downward.

4. The Luzhou-flavor Daqu culture device according to claim 2, wherein The lengths of the plurality of stirring support rods increase sequentially from the inside to the outside.

5. The Luzhou-flavor Daqu culturing device according to claim 1, wherein, The top of the culture tank is provided with a discharge outlet, and the inlet end of the condensation pipe is communicated with the discharge outlet.

6. The Luzhou-flavor Daqu culturing device according to claim 1, wherein The condensation pipe is arranged in a serpentine shape in the condensation tank, and the outlet end of the condensation pipe extends from the lower part of the condensation tank to the outside of the condensation tank.

7. The Luzhou-flavor Daqu culturing device according to claim 1, characterized in that, A heat preservation sleeve is arranged on the outside of the culture tank. An inlet for water is arranged below the heat preservation sleeve, and an outlet for water is arranged above it.

8. The Luzhou-flavor Daqu culturing device according to claim 1, wherein, A temperature detector and a humidity detector are also arranged on the culture tank.

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