Artificial old pit mud temperature control culture fermentation tank

Abstract

The utility model provides a kind of artificial old pit mud temperature control culture fermentation tank, its technical scheme is: including concrete layer, three groups of concrete layer constitute the fermentation space of U type, gap is entrance, the inside of concrete layer is embedded with foaming layer, the bottom of fermentation space is successively provided rammed earth base layer, heat preservation layer and heating layer from below to above.The utility model has beneficial effect: (1) temperature control: in-15 ℃ external environment, the constant temperature of 37±1 ℃ in fermentation space maintains length of time to 18 hours / day, and compared with traditional floor heating system, energy saving 42%;(2) microbial activity: caproic acid bacteria biomass reaches 8.7×10⁷CFU / g (compared with conventional fermentation tank, increase 2.3 times), bacterial flora space distribution uniformity improves 67%, 5~7g / kg is produced in pit mud Caproic acid;(3) operating efficiency: entrance width 8 meters, adapt mechanized device to enter and exit packing and heap material.

Description

Technical Field

[0001] This utility model belongs to the field of microbial engineering technology for liquor brewing, and in particular relates to a temperature-controlled fermentation tank for artificial old cellar mud. Background Technology

[0002] Traditional pit mud cultivation processes suffer from the following technical bottlenecks:

[0003] (1) Temperature regulation imbalance: Open-air pits or simple composting methods lead to large temperature differences inside the pit mud (vertical temperature difference > 10℃), which inhibits the synergistic metabolism of functional bacteria (such as caproic acid bacteria and methanogens).

[0004] (2) Structural design defects: Conventional fermentation tanks are mostly single rectangular structures with high heat loss rates around the walls;

[0005] (3) Poor moisture retention: The surface mud has a water loss rate of up to 20%, which easily forms a hardened crust layer, hindering the metabolic activities of microorganisms;

[0006] (4) Imbalance between energy consumption and efficiency: Conventional electric heating systems have a heat loss rate of over 40% and cannot achieve temperature balance in three-dimensional space.

[0007] In conclusion, traditional pit mud cultivation technology is not suitable for the constant temperature cultivation and microbial activity regulation of pit mud under large-scale production conditions. Summary of the Invention

[0008] To address the problem that traditional cellar mud cultivation processes are unsuitable for constant-temperature cultivation and microbial activity regulation of cellar mud under large-scale production conditions, this utility model provides an artificial old cellar mud temperature-controlled cultivation fermentation tank. The technical solution includes a concrete layer, three sets of concrete layers forming a U-shaped fermentation space, with the gap serving as the entrance. The interior of the concrete layer is embedded with a foaming layer, and the bottom of the fermentation space is arranged from bottom to top as a rammed earth base layer, an insulation layer, and a heating layer.

[0009] In a preferred embodiment, the three concrete layers are completely wrapped with an insulation film.

[0010] In a preferred embodiment, the top of the fermentation space is covered with a moisture-retaining layer.

[0011] In a preferred embodiment, the concrete layer is provided with ladders on both sides of the entrance.

[0012] In a preferred embodiment, the heating layer consists of several heating plates, and temperature and humidity sensors are provided between the heating plates. The temperature and humidity sensors transmit temperature and humidity data to the PLC control system, and the PLC control system controls the heating power of each heating plate.

[0013] In a preferred embodiment, the slope from the entrance to the bottom of the fermentation space ranges from 0.28 to 0.48°.

[0014] In a preferred embodiment, the thickness of the foamed layer is at least 8 cm, and the thickness of the insulation layer is at least 5 cm.

[0015] In a preferred embodiment, the width of the entrance is at least 8m.

[0016] The beneficial effects of this utility model are:

[0017] (1) Temperature control: In an external environment of -15℃, the constant temperature of 37±1℃ in the fermentation space is maintained for 18 hours / day, and the energy saving is 42% compared with the traditional floor heating system;

[0018] (2) Microbial activity: The biomass of caproic acid bacteria reached 8.7 × 10⁻⁶. 7 CFU / g (2.3 times higher than conventional fermentation tanks), spatial distribution uniformity of microbial community increased by 67%, and hexanoic acid production in pit mud was 5-7 g / kg;

[0019] (3) Operational efficiency: The entrance width is 8 meters, which is suitable for mechanized equipment to enter and exit the filling and turning of materials. Attached Figure Description

[0020] Figure 1 This is a front view of the present invention.

[0021] Figure 2 This is the right view of the present invention.

[0022] In the diagram: 1. Concrete layer; 2. Foamed layer; 3. Ladder; 4. Moisturizing layer; 5. Heating layer; 6. Thermal insulation layer; 7. Rammed earth base; 8. Thermal insulation film; 9. Temperature and humidity sensor. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0024] Example

[0025] like Figure 1-2 The artificial fermentation tank for temperature-controlled cultivation of old mud shown includes a concrete layer 1. Three sets of concrete layers 1 form a U-shaped fermentation space with the opening at the entrance. A foaming layer 2 is embedded inside the concrete layer 1. The bottom of the fermentation space is arranged from bottom to top as a rammed earth base layer 7, an insulation layer 6, and a heating layer 5.

[0026] Furthermore, the feature is that the three concrete layers 1 are completely wrapped by the thermal insulation film 8.

[0027] Furthermore, the top of the fermentation space is covered with a moisture-retaining layer 4.

[0028] Furthermore, the concrete layer 1 is provided with ladders 3 on both sides of the entrance.

[0029] Furthermore, the heating layer 5 is composed of several heating plates, and a temperature and humidity sensor 9 is provided between the heating plates. The temperature and humidity sensor 9 transmits temperature and humidity data to the PLC control system, and the PLC control system controls the heating power of each heating plate.

[0030] Furthermore, the slope from the entrance to the bottom of the fermentation space ranges from 0.28 to 0.48°.

[0031] Furthermore, the thickness of the foamed layer 2 is at least 8 cm, and the thickness of the insulation layer 6 is at least 5 cm.

[0032] Furthermore, the width of the entrance is at least 8m.

[0033] The construction and use of the above-mentioned fermentation tank is as follows: the three concrete layers are C30 reinforced concrete, with an embedded foaming layer of 8cm thick polyurethane, a basalt insulation board, and a heating layer composed of several carbon crystal heating plates. The entrance is at least 8m wide to facilitate the entry and exit of mechanized equipment. During use, the loader enters the innermost part of the fermentation space to start filling the pit mud, filling it from the inside out. After the pit mud is full, a moisturizing layer (such as a straw mat) is covered on the pit mud, and then the insulation film at the entrance is closed. According to the data of each temperature and humidity sensor 9, the PLC control system increases the heating power of the carbon crystal heating plates in areas with low temperature, so that the three-dimensional temperature difference is less than or equal to 2.5℃. When the humidity is greater than 80%, the PLC control system reminds the operator to remove the moisturizing layer to accelerate the evaporation of moisture. When the humidity is less than 70%, the PLC control system reminds the operator to cover the moisturizing layer to form a closed moisturizing environment, preventing the surface mud from forming a hardened crust layer that hinders the metabolic activities of microorganisms.

Claims

1. A temperature-controlled fermentation tank for artificial aged mud, characterized in that, The fermentation space consists of three concrete layers (1) forming a U-shaped fermentation space with the gap as the entrance. The interior of the concrete layer (1) is inlaid with a foam layer (2). The bottom of the fermentation space is arranged from bottom to top as a rammed earth base layer (7), an insulation layer (6), and a heating layer (5).

2. The artificial aged mud temperature-controlled fermentation tank according to claim 1, characterized in that, The three concrete layers (1) are completely wrapped by the insulation film (8).

3. The artificial aged mud temperature-controlled fermentation tank according to claim 1, characterized in that, The top of the fermentation space is covered with a moisturizing layer (4).

4. The artificial aged mud temperature-controlled fermentation tank according to claim 1, characterized in that, The concrete layer (1) has ladders (3) on both sides of the entrance.

5. The artificial aged mud temperature-controlled fermentation tank according to claim 1, characterized in that, The heating layer (5) consists of several heating plates, and a temperature and humidity sensor (9) is provided between the heating plates. The temperature and humidity sensor (9) transmits the temperature and humidity data to the PLC control system, and the PLC control system controls the heating power of each heating plate.

6. The artificial aged mud temperature-controlled fermentation tank according to claim 1, characterized in that, The slope from the entrance to the bottom of the fermentation space ranges from 0.28 to 0.48°.

7. The artificial aged mud temperature-controlled fermentation tank according to claim 1, characterized in that, The thickness of the foam layer (2) is at least 8 cm, and the thickness of the insulation layer (6) is at least 5 cm.

8. The artificial aged mud temperature-controlled fermentation tank according to claim 1, characterized in that, The width of the entrance is at least 8m.

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