Bacterial cellulose shallow tray fermentation device

Abstract

A bacterial cellulose tray fermentation device comprises a box body and a base installed at the lower end opening of the box body, a plurality of trays are stacked in the box body, a gap is formed between every two vertically adjacent trays, a feeding pipe is arranged in the middle of a top plate of the box body, and a plurality of vent pipes are evenly distributed on the periphery of the feeding pipe; through holes are formed in bottom plates of the trays outside the first layer of trays, overflow pipes with upper ports lower than ports of the trays are mounted in the through holes, the upper ports of the overflow pipes are overflow ports, and the overflow pipes in the upper and lower adjacent trays are arranged in a staggered manner; an overflow pipe with the height smaller than that of the shallow tray is arranged in the shallow tray of the fermentation device to form an overflow port, the shallow tray forms a stacked structure with a gap in the upper portion and the lower portion in the box body through a sleeve and a plug pin, raw materials can overflow downwards layer by layer after entering the shallow tray at the upper end from a feeding pipe, layer-by-layer feeding fermentation of the shallow tray is achieved, the fermentation capacity is increased, and the fermentation efficiency is improved. The fermentation yield and the fermentation yield of the bacterial cellulose can be effectively improved, the cost is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of industrial microbial fermentation, and in particular to a shallow-plate fermentation device for bacterial cellulose. Background Technology

[0002] Bacterial cellulose is a nanoscale cellulose synthesized by specific microbial strains. Due to its unique three-dimensional network structure, high purity, good biocompatibility, easy degradation, high crystallinity, and excellent mechanical strength, it has broad application potential in various fields such as food, papermaking, pharmaceutical materials, and audio equipment manufacturing. A utility model patent with application number 2019218696909 discloses a shallow tray for separable bacterial cellulose liquid fermentation. This bacterial cellulose fermentation tray is assembled by separating an outer box and an inner box. The liquid culture medium is poured into the inner box, sterilized, and then the inner box is placed into the outer box. The top cover is then closed, allowing fermentation in a workshop or laboratory. However, this patent has a single-layer structure, meaning fermentation can only be carried out through a single inner box. This results in low fermentation yield and low production costs, hindering the large-scale production of bacterial cellulose. Utility Model Content

[0003] To address the aforementioned problems, this invention proposes a shallow-plate fermentation device for bacterial cellulose.

[0004] The technical solution of this utility model is: a bacterial cellulose shallow tray fermentation device, which includes a box and a base installed at the lower end of the box. Several shallow trays are stacked inside the box, with gaps between adjacent shallow trays. There is also a gap between the outer side of the shallow tray and the box. A feed pipe is provided in the middle of the top plate of the box, and several vent pipes are evenly distributed around the feed pipe. The bottom plate of the shallow trays outside the first layer of shallow trays has through holes, and an overflow pipe with its upper end lower than the shallow tray end is installed in the through holes. The upper end of the overflow pipe is the overflow port, and the overflow pipes in the adjacent shallow trays are arranged alternately.

[0005] Preferably, the side of the shallow dish is evenly distributed with a number of sleeves arranged along the direction of the shallow dish's generatrix. The lower end of the sleeve is provided with a supporting base plate, and a pin is coaxially provided below the sleeve. The pin extends out of the bottom surface of the shallow dish by a dimension greater than the length of the sleeve. The pin on the upper shallow dish is inserted into the sleeve on the lower shallow dish.

[0006] Preferably, the upper ends of the vent pipe and the feed pipe are wrapped with a bacterial filter membrane, and a collar is provided on the vent pipe to tighten the bacterial filter membrane onto the vent pipe.

[0007] Preferably, the collar is connected to the vent pipe by an interference fit or by a thread.

[0008] Preferably, the lower port of the housing is provided with an annular protrusion, and the edge of the base and the annular protrusion are locked together by a clamp.

[0009] Preferably, the bottom surface of the base has at least three self-locking rollers evenly distributed.

[0010] Preferably, the box body is cylindrical, and the shallow dish is correspondingly circular and coaxially fitted into the box body.

[0011] Preferably, the outer side of the upper part of the box is provided with a fixed handle, and the upper port of the shallow tray is provided with a movable handle.

[0012] The beneficial technical effects of this utility model are:

[0013] (1) The shallow pan of the fermentation device forms an overflow port by setting an overflow pipe with a height less than that of the shallow pan. The shallow pan forms a stacked structure with gaps between the top and bottom in the box through the sleeve and the pin. After the raw material enters the upper shallow pan from the feed pipe, it can overflow downward layer by layer, realizing the fermentation of the shallow pan layer by layer, which increases the fermentation capacity, can effectively improve the fermentation yield and fermentation efficiency of bacterial cellulose, and is conducive to reducing costs and improving production efficiency.

[0014] (2) After the fermentation of the fermentation device is completed, the flaky fermentation product can be quickly and completely removed after the clamp is opened. This is convenient for manual operation, which helps to reduce production costs and achieve large-scale production. In addition, the overall structure is simple, easy to process, and has a low cost, which is conducive to its promotion and application in the market. Attached Figure Description

[0015] Figure 1 This is one of the three-dimensional structural schematic diagrams of this utility model;

[0016] Figure 2 yes Figure 1 A schematic diagram of the AA-direction cross-section structure;

[0017] Figure 3 This is a three-dimensional structural diagram of the present invention after the box body has been removed;

[0018] Figure 4 This is a schematic diagram of the three-dimensional structure of a shallow dish;

[0019] Figure 5 This is the second three-dimensional structural schematic diagram of this utility model.

[0020] In the diagram, 1. Box body, 11. Feed pipe, 12. Vent pipe, 13. Annular convex edge, 2. Base, 21. Roller, 3. Shallow tray, 31. Overflow pipe, 32. Sleeve, 321. Support base plate, 33. Pin, 4. Bacterial filter membrane, 5. Collar, 6. Clamp. Detailed Implementation

[0021] Example 1, see appendix Figure 1-5 A bacterial cellulose shallow tray fermentation device includes a box body 1 and a base 2 installed at the lower port of the box body. Several shallow trays 3 are stacked inside the box body 1, with gaps between adjacent shallow trays. There is also a gap between the outer side of the shallow trays 3 and the box body 1. A feed pipe 11 is provided in the middle of the top plate of the box body 1, and several vent pipes 12 are evenly distributed around the feed pipe. The vent holes, the gaps between the shallow trays 3 and between the shallow trays 3 and the box body 1 are sufficient to ensure the supply of oxygen required for microbial growth and bacterial cellulose synthesis. The bottom plate of the shallow trays other than the first layer of shallow trays 3 is provided with through holes. The first layer of shallow trays 3 serves as a support tray and does not undertake the task of overflowing. An overflow pipe 31 with its upper port lower than the port of the shallow tray 3 is installed in the through hole. The upper port of the overflow pipe is the overflow outlet. The overflow pipes 31 in the adjacent shallow trays 3 are arranged alternately.

[0022] The upper ends of the vent pipe 12 and the feed pipe 11 are wrapped with bacterial filter membrane 4. A collar 5 is provided on the vent pipe 12 to tighten the bacterial filter membrane 4 on the vent pipe 12. The bacterial filter membrane 4 filters bacteria and other impurities mixed in the air to prevent them from entering the shallow dish 3 with the air and affecting fermentation.

[0023] The collar 5 is connected to the vent tube 12 by interference fit or by thread. The connection method of the collar 5 can be selected according to the requirements to ensure the fixation effect on the bacterial filter membrane 4.

[0024] The lower end of the box 1 is provided with an annular protrusion 13. The edge of the base 2 and the annular protrusion 13 are locked together by a clamp 6. After the fermentation device is fermented, the clamp 6 is opened to separate the base 2 and the box 1. The box is lifted to expose the stacked shallow trays 3 inside. The sheet-like fermented products in the shallow trays 3 can be quickly and completely removed, which is convenient for manual operation, helps to reduce production costs and achieve large-scale production.

[0025] The bottom surface of the base 2 is evenly distributed with at least three self-locking rollers 21. The rollers 21 are used to move the fermentation device conveniently. After the device is moved into place, the rollers 21 are locked to keep the fermentation device in a fixed state.

[0026] The box body 1 is cylindrical, and the shallow dish 3 is circular and coaxially fitted into the box body 1.

[0027] A fixed handle is provided on the outer side of the upper part of the box 1. The box 1 is lifted upward by the fixed handle to separate the box from the base. A movable handle is provided at the upper end of the shallow tray 3. The shallow tray 3 can be easily picked up by the movable handle, which improves the convenience of stacking or lifting and disassembling the shallow tray.

[0028] The fermentation device has an adapter on the feed pipe 11. During inoculation, the adapter is connected to the feed pipe and then connected to the metering pump through a pipe. The metering pump drives the raw material from the feed pipe 11 into the uppermost shallow dish 3. After the raw material is filled, it flows from the overflow port at the top of the overflow pipe 31 into the next shallow dish 3. After the next dish is filled, it overflows downwards again. The shallow dishes 3 are filled layer by layer and fermentation begins. After fermentation is complete, the clamp 6 is opened and the box 1 is lifted to remove the shallow dishes layer by layer and take out the whole sheet-like fermentation product. This fermentation device with this structure greatly increases the fermentation capacity and can effectively improve the fermentation yield and efficiency of bacterial cellulose, realizing the large-scale production of bacterial cellulose.

[0029] Example 2, see appendix Figure 2-4 This embodiment is basically the same as Embodiment 1, and the similarities will not be repeated. The difference is that: several sleeves 32 are evenly distributed on the side of the shallow tray 3 along the direction of the shallow tray generatrix. The lower end of the sleeve is provided with a support base plate 321. A pin 33 is coaxially provided below the sleeve 32. The pin extends out of the bottom surface of the shallow tray 3 by a dimension greater than the length of the sleeve 32. The pin 33 on the first layer of shallow tray 3 is fixedly connected to the base 2. The pin 33 on the upper layer of shallow tray 3 is inserted into the sleeve 32 on the lower layer of shallow tray. The stacking and docking between the shallow trays 3 can be conveniently and quickly realized through the pin and sleeve. The overall structure is simple, easy to process, and convenient for manual operation.

Claims

1. A bacterial cellulose tray fermentation apparatus, characterized by: The device comprises a box and a base installed at the lower end of the box, a plurality of shallow trays are stacked in the box, gaps are arranged between the adjacent shallow trays, gaps are arranged between the outer side of the shallow trays and the box, a feeding pipe is arranged in the middle of the top plate of the box, a plurality of air permeable pipes are uniformly distributed around the feeding pipe, a through hole is arranged on the bottom plate of the shallow tray outside the first layer of shallow trays, an overflow pipe with the lower end lower than the end of the shallow tray is installed in the through hole, the upper end of the overflow pipe is an overflow port, and the overflow pipes in the adjacent shallow trays are staggered.

2. The bacterial cellulose tray fermentation device according to claim 1, characterized in that: The side of the shallow tray is uniformly distributed with a plurality of sleeves arranged along the generatrix direction of the shallow tray, the lower end of the sleeve is provided with a supporting bottom plate, and a plug is coaxially arranged below the sleeve, the size of the plug extending out of the bottom surface of the shallow tray is greater than the length of the sleeve, and the plug on the upper shallow tray is inserted into the sleeve on the lower shallow tray.

3. The bacterial cellulose tray fermentation device according to claim 1, characterized in that: The upper end of the air permeable pipe and the feeding pipe is wrapped with a bacterial filter membrane, and a sleeve ring is arranged on the air permeable pipe to tightly wrap the bacterial filter membrane around the air permeable pipe.

4. The bacterial cellulose tray fermentation device according to claim 3, characterized in that: The sleeve ring is connected with the air permeable pipe through interference fit or through threads.

5. The bacterial cellulose tray fermentation device according to claim 1, characterized in that: The lower end of the box is provided with an annular convex edge, and the edge of the base and the annular convex edge are butt-jointed and locked by a clamp.

6. The bacterial cellulose tray fermentation device according to claim 1, characterized in that: The bottom surface of the base is uniformly provided with at least three self-locking rollers.

7. The bacterial cellulose tray fermentation device according to claim 1, characterized in that: The box is cylindrical, and the shallow trays are correspondingly circular and coaxially sleeved in the box.

8. The bacterial cellulose tray fermentation device according to claim 1, characterized in that: The outer side of the upper part of the box is provided with a fixed handle, and the upper end of the shallow tray is provided with a movable handle.

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