CN215365787U - Anaerobic fermentation tank is used in erythritol production - Google Patents
Anaerobic fermentation tank is used in erythritol production Download PDFInfo
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Abstract
The utility model provides aErythritol production is with anaerobic fermentation jar, including the fermentation cylinder, the top surface of fermentation cylinder is equipped with feed inlet, water inlet, fungus mouth and a driving motor, a stirring piece is connected in driving shaft transmission of driving motor, the setting of stirring piece is in the fermentation cylinder, an upper cover can be dismantled and connect to the upper end of fermentation cylinder, the upper cover covers the top surface of fermentation cylinder, on cover and be equipped with an exhaust tube and an intake pipe, an air extractor can be dismantled to connect to the exhaust tube, an intake pipe can be dismantled and connect a CO2The ball, be provided with an admission valve in the intake pipe, the fermentation cylinder lower extreme be equipped with the discharging pipe and with the unloading lid of discharging pipe adaptation. The anaerobic fermentation tank for erythritol production has good sealing performance, can ensure that the fermentation environment in the fermentation tank is in an anaerobic state, improves the yield of erythritol during anaerobic fermentation, and improves the production efficiency and the fermentation success rate of erythritol.
Description
Technical Field
The utility model relates to the technical field of fermentation tanks, in particular to an anaerobic fermentation tank for erythritol production.
Background
The production method of erythritol generally includes a chemical synthesis method and a microbial fermentation method. The chemical synthesis method is to treat starch or cellulose oxidized by periodic acid with acid and alkali, and nickel is used as a catalyst, and hydrogenation reduction is carried out at high temperature and high pressure, but the product is accompanied by glycol, so that the yield is low and industrial production is difficult to realize. The microbial fermentation method is characterized in that starch raw materials such as wheat or corn are subjected to enzyme degradation to generate glucose, and the glucose is obtained by fermenting high-permeability-resistant yeast or other strains at high concentration, concentrating, crystallizing, separating and drying. The method has the advantages of mild and easily controlled production process and more production advantages.
The heterologous lactic acid bacterium produces erythritol in the absence of oxygen, and the mechanism for producing erythritol from glucose is: glucose-6-phosphate forms fructose-6-phosphate under the action of phosphoglucose isomerase, fructose-6-phosphate is cleaved by phosphoketolase, erythrose-4-phosphate is reduced by erythritol-4-phosphate dehydrogenase, and finally erythritol-4-phosphate is hydrolyzed by phosphatase to produce erythritol. Fructose-6-phosphate transketolase and xylose-5-phosphate transketolase are converted from the same enzyme, but the latter is competitively inhibited by fructose-6-phosphate. The Lactobacillus paracasei extract contains NAD (P) H oxidase which has a great relationship with NADPH and reoxidation of NADH in cultured cells under aerobic conditions, and when the cells are cultured with glucose, the concentrations of glucose-6-phosphate and fructose-6-phosphate are higher in the absence of oxygen than in the presence of oxygen, while fructose-6-phosphate competitively inhibits xylose-5-phosphate transketolase and fructose-6-phosphate transketolase activity is increased, promoting conversion to erythritol, i.e., anaerobically stimulating the production of erythritol by the heterologous lactic acid bacteria.
The process of producing erythritol by microbial fermentation is usually carried out in a fermentation tank, and the fermentation effect is influenced by the sealing property of the fermentation tank, the stirring uniformity of a fermentation agent and the like. Therefore, an efficient anaerobic fermentation tank for erythritol production, which improves the erythritol production rate, is provided.
SUMMERY OF THE UTILITY MODEL
The utility model provides an anaerobic fermentation tank for erythritol production, which overcomes the defects, has good sealing property and high production efficiency, and can improve the erythritol production rate.
In order to achieve the purpose, the utility model provides an anaerobic fermentation tank for erythritol production, which comprises a fermentation tank, wherein the upper end of the fermentation tank is detachably connected with an inner cover, the inner cover is provided with a feed inlet, a water inlet, a bacterium inlet and a driving motor, a driving shaft of the driving motor is in transmission connection with a stirring piece, the stirring piece is arranged in the fermentation tank, the upper end of the fermentation tank is detachably connected with an upper cover, the upper cover covers the inner cover, the upper cover is provided with an exhaust tube and an air inlet tube, the exhaust tube is detachably connected with an air pump, and the air inlet tube is detachably connected with a CO (carbon monoxide) pump2The ball, be provided with an admission valve in the intake pipe, the fermentation cylinder lower extreme be equipped with the discharging pipe and with the discharge lid of discharging pipe adaptation, be equipped with the bleeder valve on the discharging pipe.
Preferably, the feed inlet, the water inlet and the bacteria inlet are respectively and detachably provided with a feed cover, a water inlet cover and a bacteria inlet cover which are correspondingly matched.
Preferably, the feeding cover, the water inlet cover, the bacterium inlet cover and the discharging cover are internally provided with rubber rings which are respectively in threaded connection with the feeding hole, the water inlet, the bacterium inlet and the discharging pipe.
Further preferably, the upper cover is in threaded connection with the fermentation tank, and a sealing ring is arranged in the upper cover.
Further preferably, the stirring member comprises a stirring shaft and a predetermined number of stirring blades uniformly arranged on the stirring shaft, and the stirring blades are uniformly provided with stirring holes.
Further preferably, the stirring blade is attached to the inner wall of the fermentation tank.
Preferably, one end of each stirring blade, which is far away from the stirring shaft, is correspondingly provided with a predetermined number of scraping plates, the scraping plates are attached to the inner wall of the fermentation tank, and the scraping plates are uniformly provided with leakage holes.
Further preferably, the fermentation cylinder includes inner tank and outer jar, the inner tank with be provided with heating coil between the lateral wall of outer jar, heating coil is electric heating pipe or steam heating pipe.
Further preferably, the anaerobic fermentation tank for erythritol production further comprises a controller and a temperature sensor arranged on the outer surface of the inner tank, and the controller is in control connection with the driving motor and the temperature sensor.
Further preferably, an ultraviolet disinfection piece is arranged in the inner cover, and the controller is electrically connected with the ultraviolet disinfection piece and controls the opening and closing of the ultraviolet disinfection piece.
The utility model has the beneficial effects that: the anaerobic fermentation tank for producing the erythritol, provided by the utility model, is characterized in that the upper end of the fermentation tank is provided with an upper cover, and the upper cover is communicated with CO2The upper cover covers the inner cover, and CO is filled between the upper cover and the inner cover during operation2And the upper cover is arranged to improve the sealing performance of the fermentation tank, even if the sealing performance between the inner cover and the fermentation tank is reduced, the CO which enters the fermentation tank and is filled in the compartment between the upper cover and the fermentation tank2Can ensure that the fermentation environment in the fermentation tank is in an anaerobic state, further improve the yield of the erythritol during anaerobic fermentation and improve the erythroseAlcohol production efficiency and fermentation success rate.
A temperature sensor and a heating coil are arranged between the inner tank and the outer tank, so that the temperature in the seed tank can be monitored and adjusted in real time, the temperature is controlled at the optimal fermentation temperature, and the fermentation efficiency and quality are ensured.
Be provided with the stirring piece in the inner tank, the inner space adaptation of its stirring scope and inner tank can scrape during the stirring and glue glucose raw materials or erythritol result on the inner wall of inner tank, makes the zymotic fluid intensive mixing even, and on the other hand, during stirring leaf stirring, some zymotic fluid flows in the same direction as stirring leaf rotation direction under the stirring leaf effect, and another part zymotic fluid passes through stirring leaf clearance and the stirring hole mixes with the zymotic fluid at stirring rear, promotes zymotic fluid misce bene, and the abundant contact between zymophyte and raw materials improves fermentation efficiency and quality.
Drawings
FIG. 1 is a schematic structural view of an anaerobic fermentation tank for erythritol production according to a first embodiment;
FIG. 2 is a schematic view of the structure of a stirrer in an anaerobic fermenter for producing erythritol according to the first embodiment.
Detailed Description
The embodiments described below are only a part of the embodiments of the present invention, and not all of them. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1 and fig. 2, the embodiment provides an anaerobic fermentation tank for erythritol production, which includes a fermentation tank 1, an inner cover 2 is detachably connected to the upper end of the fermentation tank 1, a feed port 11, a water inlet 12, a bacteria inlet 13 and a driving motor 16 are arranged on the inner cover 2, and the feed port 11, the water inlet 12 and the bacteria inlet 13 are respectively connected with a feed cover 21, a water inlet cover 22 and a bacteria inlet cover 23 which are correspondingly adapted through threads. The lower end of the fermentation tank 1 is provided with a discharge pipe 14 and a discharge cover 24 adapted to the discharge pipe 14, and the discharge pipe 14 is provided with a discharge valve 15. Rubber rings are arranged in the feeding cover 21, the water inlet cover 22, the bacteria inlet cover 23 and the discharging cover 24 and are used for improving the tightness of the fermentation tank 1.
Be provided with a stirring piece 3 in the fermentation cylinder 1, stirring piece 3 includes that a (mixing) shaft 31 is in with even setting up the stirring leaf 32 of the predetermined quantity on the (mixing) shaft 31, evenly be provided with stirring hole 33 on the stirring leaf 32, stirring leaf 32 with the inner wall laminating of fermentation cylinder 1. The driving motor 16 is connected with the stirring shaft 31 and drives the stirring piece 3 to rotate and stir.
The upper end of fermentation cylinder 1 can be dismantled through the screw and be connected with an upper cover 4, upper cover 4 covers inner cup 2 with fermentation cylinder 1 is connected, be equipped with an exhaust tube 41 and an intake pipe 42 on upper cover 4, an air extractor (not shown) can be dismantled and connect to exhaust tube 41, an intake pipe 42 can be dismantled and connect a CO2 ball 43, be provided with an bleeder valve 44 on the exhaust tube 41, be provided with an admission valve 45 on the intake pipe 42. A sealing ring is arranged in the upper cover 4 and used for improving the sealing property when the upper cover 4 is connected with the fermentation tank 1.
Further preferably, fermentation cylinder 1 includes inner tank 100 and outer jar 101, inner tank 100 with be provided with heating coil 5 between the lateral wall of outer jar 101, heating coil 5 is electric heating pipe or steam heating pipe for heat fermentation cylinder 1.
The anaerobic fermentation tank 1 for erythritol production further comprises a controller (not shown in the figure) and a temperature sensor (not shown in the figure) arranged on the outer surface of the inner tank 100, wherein the controller is electrically connected with the driving motor 16 and the temperature sensor to control the driving motor 16 to drive the stirring piece 3 to stir, receive temperature detection information sent by the temperature sensor, and change the electric power or steam flow of the heating coil 5 according to the temperature detection information so as to keep the fermentation tank 1 at a constant temperature, so that the temperature in the fermentation tank 1 is in an optimal fermentation state, and further improve the fermentation quality and efficiency.
Further preferably, an ultraviolet disinfection part is arranged in the upper cover 4, and the ultraviolet disinfection part comprises a predetermined number of ultraviolet lamps 6 arranged on the inner surface of the upper cover 4 and is used for performing ultraviolet disinfection on a compartment between the upper cover 4 and the fermentation tank 1, so that the pollution of infectious microbes in the compartment on fermentation liquor is reduced, and the success rate of fermentation is improved. The controller is electrically connected with the ultraviolet disinfection piece and controls the opening and closing of the ultraviolet disinfection piece.
The anaerobic fermentation tank 1 for producing erythritol has the working principle that: through feed inlet 11 the water inlet 12 reach advance fungus mouth 13 to add raw materials, water and fungus liquid in inner tank 100, cover feeding lid 21, intake lid 22 and intake lid 23 respectively, will upper cover 4 with fermentation cylinder 1 is connected, controller control admission valve 45 closes, bleeder valve 44 is opened, opens the air extractor is right upper cover 4 with the compartment between fermentation cylinder 1 is bled, and after the scheduled time, close the air extractor with bleeder valve 44 opens admission valve 45 makes CO2CO in the ball 432Be full of upper cover 4 with compartment between fermentation cylinder 1, the controller control ultraviolet disinfection piece open right upper cover 4 with compartment between fermentation cylinder 1 carries out ultraviolet disinfection, simultaneously the controller control driving motor 16 starts, driving motor 16 drives stirring shaft 31 rotates, and then drives stirring leaf 32 rotates and fully stirs, promotes the fermentation, improves fermentation quality, opens simultaneously heating coil 5 heats fermentation cylinder 1, temperature sensor monitors in real time fermentation cylinder 1 temperature, and with temperature detection information transfer to the controller, the controller receives temperature detection information and handles, compares the temperature that detects with the set temperature, when detecting the temperature < (set temperature-1 ℃), heating coil 5 keeps original electric power or steam flow, or increasing electric power or steam flow to continuously increase the temperature of the fermentation tank 1, when the detected temperature is > (set temperature +1 ℃), the heating coil 5 reduces the electric power or steam flow to reduce the temperature of the fermentation tank 1, and in summary, the controller controls the electric power or steam flow of the heating coil 5 according to the temperature detection information transmitted by the temperature sensor to maintain the temperature of the fermentation tank 1 within (set temperature +/-1 ℃), so as to maintain the temperature dimension of the fermentation tank 1The fermentation is kept in the optimal fermentation state, and the fermentation efficiency and quality are ensured. After the preset time, the controller controls the ultraviolet disinfection part to be closed, after the fermentation is completed, the discharging cover 24 and the discharging valve 15 are opened, and fermentation liquor is collected to carry out the next operation.
In the working process, the driving motor 16 drives the stirring piece 3 to stir, the stirring blade 32 is attached to the inner wall of the fermentation tank 1, erythritol is gradually generated in the fermentation process, glucose raw materials or erythritol products may be adhered to the inner wall of the fermentation tank 1, on one hand, the stirring blade 32 can scrape off the glucose raw materials or erythritol products adhered to the inner wall of the fermentation tank 1 during stirring, so that the fermentation liquid is fully and uniformly stirred, on the other hand, when the stirring blade 32 stirs, a part of the fermentation liquid flows along the rotation direction of the stirring blade 32 under the action of the stirring blade 32, and the other part of the fermentation liquid is mixed with the fermentation liquid after stirring through the gaps between the stirring blades 32 and the stirring holes 33, so that the uniform mixing of the fermentation liquid is promoted, the fermentation bacteria are fully contacted with the raw materials, and the fermentation efficiency and the fermentation quality are improved. In addition, the upper cover 4 is arranged to improve the sealing performance of the fermentation tank 1, and even if the feed inlet 11, the water inlet 12, the bacteria inlet 13 and the sealing performance between the inner cover 2 and the fermentation tank 1 are reduced, the CO which enters the fermentation tank 1 and is filled in the compartment between the upper cover 4 and the fermentation tank 1 is still filled in the compartment2And the fermentation environment in the fermentation tank 1 can be ensured to be in an anaerobic state, so that the yield of the erythritol during anaerobic fermentation is improved.
Example 2
The end of each stirring blade 32, which is far away from the stirring shaft 31, is correspondingly provided with a predetermined number of scrapers 34, the scrapers are attached to the inner wall of the fermentation tank 1, and the scrapers are uniformly provided with leak holes 35. The scraper 34 can scrape off glucose raw material or erythritol product adhered to the inner wall of the fermentation tank 1 during stirring, so that the fermentation liquid is fully stirred uniformly, the fermentation bacteria and the raw material are fully contacted, and the fermentation efficiency and quality are improved.
While the utility model has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model.
Claims (10)
1. The utility model provides an erythritol production is with anaerobic fermentation jar, a serial communication port, including the fermentation cylinder, the upper end of fermentation cylinder can be dismantled and be connected with an inner cup, interior overhead feed inlet, water inlet, fungus inlet and a driving motor of covering, a driving shaft drive of driving motor connects a stirring piece, the stirring piece sets up in the fermentation cylinder, an upper cover can be dismantled and connect in the upper end of fermentation cylinder, the upper cover covers the inner cup, on cover and be equipped with an exhaust tube and an intake pipe, an air extractor can be dismantled and connect to the exhaust tube, an intake pipe can be dismantled and connect a CO2The ball, be provided with an admission valve in the intake pipe, the fermentation cylinder lower extreme be equipped with the discharging pipe and with the unloading lid of discharging pipe adaptation.
2. The anaerobic fermentation tank for erythritol production as claimed in claim 1, wherein a feed cover, a water inlet cover and a bacteria inlet cover which are correspondingly adapted are detachably provided on the feed inlet, the water inlet and the bacteria inlet, respectively.
3. The anaerobic fermentation tank for erythritol production as claimed in claim 2, wherein rubber rings are arranged in the feed cover, the water inlet cover, the bacteria inlet cover and the discharge cover, and are respectively connected with the feed inlet, the water inlet, the bacteria inlet and the discharge pipe through threads.
4. The anaerobic fermentation tank for erythritol production as claimed in claim 1, wherein said upper cover is screwed to said fermentation tank, and a sealing ring is provided in said upper cover.
5. The anaerobic fermenter for producing erythritol according to claim 1, wherein the stirring member comprises a stirring shaft and a predetermined number of stirring blades uniformly disposed on the stirring shaft, and the stirring blades are uniformly provided with stirring holes.
6. The anaerobic fermenter for producing erythritol of claim 5, wherein the stirring blade is attached to an inner wall of the fermenter.
7. The anaerobic fermentation tank for erythritol production as claimed in claim 5, wherein a predetermined number of scrapers are provided at each end of each stirring blade away from the stirring shaft, the scrapers are attached to the inner wall of the fermentation tank, and the scrapers are uniformly provided with weep holes.
8. The anaerobic fermentation tank for erythritol production according to claim 1, wherein the fermentation tank comprises an inner tank and an outer tank, and a heating coil is arranged between the side walls of the inner tank and the outer tank, and the heating coil is an electric heating pipe or a steam heating pipe.
9. The anaerobic fermenter for producing erythritol according to claim 8, further comprising a controller and a temperature sensor disposed on an outer surface of the inner tank, wherein the controller is connected to the driving motor and the temperature sensor.
10. The anaerobic fermentation tank for erythritol production as claimed in claim 9, wherein an ultraviolet disinfection member is provided in the inner lid, and the controller is electrically connected to the ultraviolet disinfection member and controls the opening and closing of the ultraviolet disinfection member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202121660884.5U CN215365787U (en) | 2021-07-21 | 2021-07-21 | Anaerobic fermentation tank is used in erythritol production |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121660884.5U CN215365787U (en) | 2021-07-21 | 2021-07-21 | Anaerobic fermentation tank is used in erythritol production |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114561281A (en) * | 2022-02-21 | 2022-05-31 | 广州市博之越精细化工有限公司 | Synthesis process and synthesis device of micromolecular ellagic acid |
| CN117363478A (en) * | 2023-11-23 | 2024-01-09 | 山东乐泰机械科技有限公司 | Anaerobic fermentation tank for sugar alcohol production |
| CN117568133A (en) * | 2023-11-16 | 2024-02-20 | 山东乐泰机械科技有限公司 | Sugar alcohol production is with blowing formula fermentation cylinder of being convenient for |
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2021
- 2021-07-21 CN CN202121660884.5U patent/CN215365787U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114561281A (en) * | 2022-02-21 | 2022-05-31 | 广州市博之越精细化工有限公司 | Synthesis process and synthesis device of micromolecular ellagic acid |
| CN114561281B (en) * | 2022-02-21 | 2022-10-25 | 广州市博之越精细化工有限公司 | Synthesis process and synthesis device of micromolecular ellagic acid |
| CN117568133A (en) * | 2023-11-16 | 2024-02-20 | 山东乐泰机械科技有限公司 | Sugar alcohol production is with blowing formula fermentation cylinder of being convenient for |
| CN117568133B (en) * | 2023-11-16 | 2024-05-03 | 山东乐泰机械科技有限公司 | Sugar alcohol production is with blowing formula fermentation cylinder of being convenient for |
| CN117363478A (en) * | 2023-11-23 | 2024-01-09 | 山东乐泰机械科技有限公司 | Anaerobic fermentation tank for sugar alcohol production |
| CN117363478B (en) * | 2023-11-23 | 2024-03-01 | 山东乐泰机械科技有限公司 | Anaerobic fermentation tank for sugar alcohol production |
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