A small koji fermentation device for liquor brewing

Abstract

The utility model relates to the field of white liquor brewing technology discloses a small koji fermentation device for white liquor brewing, including the outer box, still including the inner box of fixed connection in the outer box, the passage is formed with the outer box top and the inner box bottom, the heating piece is fixedly connected with the inner box bottom, and the fan is detachably connected with one end of the outer box, and the other end of the outer box is provided with the ventilation slot that is linked with one end of the passage, and the fan output end is linked with the other end of the passage, the utility model discloses the combination of graphene electrothermal film and fan can regulate and control the temperature of the inner box, makes the fermentation temperature of the inner box 28 the C-35 the C, improves the environmental stability, guarantees product quality consistency.

Description

Technical Field

[0001] This utility model relates to the field of liquor brewing technology, specifically to a small-batch fermentation device for liquor brewing. Background Technology

[0002] Baijiu is a traditional Chinese distilled spirit with a long history of brewing and a rich variety of types. Based on the different saccharifying and fermenting agents used, baijiu is mainly divided into daqu (large koji) baijiu, xiaoqu (small koji) baijiu, and fuqu (bran koji) baijiu. Xiaoqu baijiu is known for its pure aroma, smooth taste, short production cycle, and high yield, and is widely popular in southern China. Xiaoqu, as its core fermenting agent, is mainly made from rice or rice bran and is rich in beneficial microorganisms such as Rhizopus and yeast. It has the advantages of strong saccharification power, low dosage, and rapid fermentation start-up, making it suitable for solid-state fermentation processes.

[0003] In the traditional brewing process of small-batch liquor, the fermentation stage generally adopts a two-step method combining "saccharification by inoculum cultivation" and "alcoholic fermentation." First, steamed and cooled grains are mixed with koji (a type of starter culture) and placed in an inoculum chamber or shallow pool for 20-48 hours of inoculum cultivation, allowing Rhizopus molds to fully multiply and complete the conversion of starch into sugar. Then, water is added and the mixture is transferred to a fermentation tank or vat and sealed for anaerobic alcoholic fermentation for several days to more than a week. This process is extremely sensitive to environmental conditions such as temperature, humidity, oxygen content, and the looseness of the materials. In particular, the inoculum cultivation stage requires maintaining a stable temperature of 28-33°C. Slight loss of control can easily lead to insufficient saccharification, contamination by other microorganisms, or "burning" of the mash, seriously affecting the yield and quality of the liquor.

[0004] Traditional fermentation methods rely on simple devices such as wooden boxes, cement pools, or earthenware jars, and rely on manual methods such as covering with straw mats or burlap sacks for insulation. They lack effective temperature control methods, are crude in operation, have poor environmental stability, and it is difficult to maintain consistent product quality. Utility Model Content

[0005] This utility model provides a small-batch fermentation device for brewing baijiu (Chinese liquor). By fixing a heating element to the bottom of the inner box and fixing a fan to the outer box, the temperature of the inner box can be regulated, thus solving the problem of poor environmental stability and difficulty in maintaining consistent product quality mentioned in the background art.

[0006] This utility model provides the following technical solution: A fermentation device for brewing baijiu (Chinese liquor) includes an outer box and an inner box fixedly connected inside the outer box. A channel is formed between the top of the outer box and the bottom of the inner box. A heating element is fixedly connected to the bottom of the inner box. A fan is detachably connected to one end of the outer box. A ventilation slot communicating with one end of the channel is opened at the other end of the outer box. The output end of the fan is connected to the other end of the channel.

[0007] As a preferred embodiment of this utility model, the heating element includes a graphene electrothermal film disposed in the channel, and the graphene electrothermal film is fixedly connected to the bottom of the inner box by double-sided adhesive.

[0008] As a preferred embodiment of this utility model, a thermostat is fixedly connected to one end of the outer casing, and the graphene heating film is electrically connected to the thermostat.

[0009] As a preferred embodiment of this utility model, an L-plate is fixedly connected to one end of the outer casing, and the fan housing is detachably connected to the L-plate by bolts.

[0010] As a preferred embodiment of this utility model, the inner box is made of stainless steel.

[0011] As a preferred embodiment of this utility model, the thickness of the inner box ranges from 2 to 10 mm.

[0012] Compared with the prior art, this utility model provides a small-batch fermentation device for brewing baijiu (Chinese liquor), which has the following beneficial effects: 1. In this small-batch fermentation device for baijiu brewing, a graphene electric heating film is fixedly connected to the bottom of the inner box, and a fan is installed at one end of the outer box. This allows the temperature of the inner box to be regulated, maintaining the fermentation temperature between 28°C and 35°C, thereby improving environmental stability and ensuring consistent product quality.

[0013] 2. In this small-batch fermentation device for brewing baijiu, the blower is mounted on the outer casing using an L-plate, allowing for flexible installation and removal of the blower and improving its performance.

[0014] The parts of this device not described herein are the same as or can be implemented using existing technologies. This utility model utilizes the combination of graphene electric heating film and fan to regulate the temperature of the inner chamber, keeping the fermentation temperature of the inner chamber between 28°C and 35°C, thereby improving environmental stability and ensuring consistent product quality. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, the elements or parts are not necessarily drawn to actual scale.

[0016] Figure 1 This is a first-person perspective perspective view of the present invention. Figure 2 This is a two-dimensional perspective view of the present invention. Figure 3 This is a schematic cross-sectional view of the present invention; Figure 4 This utility model Figure 3 An enlarged schematic diagram of part A in the middle.

[0017] In the diagram: 1. Outer casing; 101. Air inlet; 102. Ventilation slot; 2. Inner casing; 201. Graphene electric heating film; 3. Fan; 4. Temperature controller. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Example: Reference Figures 1-4 A fermentation device for brewing baijiu (Chinese liquor) includes an outer box 1 with casters equipped with brakes fixedly connected to its bottom for easy movement. It also includes an inner box 2 fixedly connected inside the outer box 1, preferably secured with screws. The inner box 2 is preferably made of stainless steel to minimize adverse effects on the microbial culture and ensure reliable growth. When materials are placed in the inner box 2, they are covered with straw mats, burlap sacks, or similar materials for insulation. The thickness of the inner box 2 ranges from 2-10mm, preferably 3mm, and its dimensions are 3m x 2m x 0.2m. A channel is formed at the top of the outer box 1 and the bottom of the inner box 2. A heating element is fixedly connected to the bottom of the inner box 2. A fan 3 is detachably connected to one end of the outer box 1. The fan 3 is preferably a small 24V blower with a diameter of 80*80*30mm. A ventilation slot 102 is opened at the other end of the outer box 1, which is connected to one end of the channel. The output end of the fan 3 is connected to the other end of the channel. An air inlet 101 is opened at one end of the outer box 1, and the output end of the fan 3 is connected to the air inlet 101. During the entire fermentation process, the core temperature control range is 28°C-35°C. That is to say, the heating element heats when the temperature is low, especially in winter; when the temperature is high, the fan 3 is turned on to ventilate into the channel, which can appropriately reduce the temperature of the inner box 2 and improve the performance.

[0020] During use, by fixing a graphene electric heating film 201 to the bottom of the inner box 2 and installing a fan 3 at one end of the outer box 1, the temperature of the inner box 2 can be regulated, so that the fermentation temperature of the inner box 2 is between 28°C and 35°C, thereby improving environmental stability and ensuring product quality consistency.

[0021] The heating element includes a graphene heating film 201 disposed within the channel. The graphene heating film 201 typically has a multi-layered composite structure, mainly consisting of a substrate layer, a conductive heating layer, an electrode layer, an insulating protective layer, and an encapsulation layer from the inside out (or from bottom to top). It provides waterproofing and insulation. Some products also include a shielding layer. The core function is to convert electrical energy into heat energy through the conductive heating layer. The graphene heating film 201 is fixedly connected to the bottom of the inner box 2 using double-sided adhesive. Therefore, after cleaning the bottom plate of the inner box 2, the graphene heating film 201 can be adhered to the bottom of the inner box 2 using double-sided adhesive for heating. The double-sided adhesive is composed of a polyimide film and a high-temperature resistant adhesive (such as silicone or acrylate), allowing for long-term operation at temperatures up to 200-300°C and short-term tolerance to temperatures above 400°C.

[0022] A thermostat 4, model WK601 / 2, is fixedly connected to one end of the outer casing 1. The graphene heating film 201 is electrically connected to the thermostat 4 and is used for turning the graphene heating film 201 on and off and adjusting the temperature. To ensure safe use, a leakage protection switch should be installed in the circuit of the graphene heating film 201. In actual use, temperature sensors can be installed on the inner wall and bottom of the inner casing 2 to facilitate the detection of fermentation temperature.

[0023] An L-plate is fixedly connected to one end of the outer casing 1. The fan 3 housing is detached and connected to the L-plate by bolts. In use, the fan 3 can be flexibly installed and disassembled by installing the fan 3 on the outer casing 1 using the L-plate, which improves the performance.

[0024] Components not described in detail in this article are existing technologies.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A small-batch fermentation device for brewing baijiu (Chinese liquor), comprising an outer casing (1), characterized in that, It also includes an inner box (2) that is fixedly connected inside the outer box (1). The outer box (1) has a channel at the top and the inner box (2) at the bottom. The inner box (2) is fixedly connected to a heating element at the bottom. A fan (3) is detachably connected to one end of the outer box (1). A ventilation slot (102) connected to one end of the channel is opened at the other end of the outer box (1). The output end of the fan (3) is connected to the other end of the channel.

2. The fermentation device for brewing baijiu (Chinese liquor) according to claim 1, characterized in that, The heating element includes a graphene electric heating film (201) disposed in the channel, and the graphene electric heating film (201) is fixedly connected to the bottom of the inner box (2) by double-sided adhesive tape.

3. The fermentation device for brewing baijiu (Chinese liquor) according to claim 2, characterized in that, A thermostat (4) is fixedly connected to one end of the outer casing (1), and the graphene electrothermal film (201) is electrically connected to the thermostat (4).

4. The fermentation device for brewing baijiu (Chinese liquor) according to claim 1, characterized in that, The outer casing (1) is fixedly connected to an L-plate at one end, and the fan (3) housing is detached and connected to the L-plate by bolts.

5. The fermentation device for brewing baijiu (Chinese liquor) according to claim 1, characterized in that, The inner box (2) is made of stainless steel.

6. The fermentation device for brewing baijiu (Chinese liquor) according to claim 1, characterized in that, The thickness of the inner box (2) ranges from 2 to 10 mm.

Images