Aspergillus niger fermentation device for producing sodium glucoheptonate

Abstract

The utility model relates to the technical field of sodium glucoheptonate, and discloses an aspergillus niger fermentation device for producing sodium glucoheptonate, which comprises a fermentation barrel, a feed port arranged on one side of the fermentation barrel, a discharge port arranged on the other side of the fermentation barrel, a driving mechanism arranged at the end part of the fermentation barrel, and a stirring shaft arranged inside the fermentation barrel, the driving mechanism is matched with the stirring shaft for use, through the arrangement of the first rotating cylinder, materials are put into the fermentation barrel, the servo motor drives the rotating shaft and the stirring shaft at the bottom of the rotating shaft to rotate, the stirring shaft drives the first rotating cylinder to rotate, the first rotating cylinder drives the first stirring rod at the bottom to rotate, and the first stirring blades stir the materials; the first stirring blades are in full contact with the materials, so that the mass transfer efficiency of oxygen can be improved. Oxygen is a key factor of aerobic fermentation, and bubbles are uniformly distributed in the material through stirring, so that a local oxygen deficit phenomenon is avoided, and normal growth and metabolic activity of microorganisms are ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of sodium glucoheptonate, specifically to an aspergillus niger fermentation device for sodium glucoheptonate production. BACKGROUND

[0002] Sodium glucoheptonate is a multifunctional chemical widely used in food, pharmaceutical, textile, and water treatment industries. Its production typically involves a microbial fermentation process, where Aspergillus niger is a commonly used production strain. The following is an overview of Aspergillus niger fermentation devices in the production of sodium glucoheptonate. The design and operation of Aspergillus niger fermentation devices are crucial for efficient production of sodium glucoheptonate. Such devices typically include a fermenter, a stirring system, an aeration system, a temperature control system, and a pH control system, among other key components. The fermenter is the main place for microbial growth and metabolism. For the fermentation production of sodium glucoheptonate by Aspergillus niger, aeration fermenters equipped with mechanical stirrers are usually used. The tank body material is mostly stainless steel to ensure corrosion resistance and hygiene standards. The function of the stirrer is to ensure the uniform distribution of nutrients in the medium, while promoting the mass transfer of oxygen. Common types of stirrers include paddle, turbine, and propeller, etc. The stirring speed and the geometry of the stirrer need to be optimized according to the specific fermentation requirements. Since Aspergillus niger is an aerobic microorganism, adequate oxygen supply is critical to the fermentation process. The aeration system usually includes air filters, air blowers, and distributors, etc. to ensure that clean, sterile air is provided to the fermentation broth and evenly distributed.

[0003] Currently, insufficient stirring can lead to uneven distribution of nutrients in the medium. Some areas may have excess nutrients, while others may be nutrient-deficient. This unevenness can limit the growth rate and metabolic activity of microorganisms, reducing fermentation efficiency; therefore, it does not meet the existing needs, and for this we propose an Aspergillus niger fermentation device for sodium glucoheptonate production. SUMMARY

[0004] The utility model provides an aspergillus niger fermentation device for sodium glucoheptonate production, has avoided local hypoxia phenomenon, ensured that the normal growth and metabolic activity of microorganism have beneficial effect, solved the problem that insufficient stirring can lead to uneven distribution of nutrients (such as glucose, inorganic salt, etc.) in the medium mentioned in the above background art. Some areas may have excess nutrients, while others may be nutrient-deficient. This unevenness can limit the growth rate and metabolic activity of microorganisms, reducing fermentation efficiency.

[0005] The utility model provides following technical scheme: a kind of for sodium glucoheptonate production's aspergillus niger fermentation device, including fermentation vat, the side of fermentation vat is equipped with feed inlet, the other side of fermentation vat is equipped with discharge gate, the end of fermentation vat is provided with driving mechanism, the inside of fermentation vat is provided with stirring shaft, the driving mechanism is used in conjunction with the stirring shaft.

[0006] As a kind of for sodium glucoheptonate production's aspergillus niger fermentation device optional scheme described in the utility model, wherein: the driving mechanism includes servo motor and shaft, the shaft is inserted in the end of the fermentation vat, the servo motor is installed on the surface of the fermentation vat, the output shaft of the servo motor is connected with the shaft key.

[0007] As a kind of for sodium glucoheptonate production's aspergillus niger fermentation device optional scheme described in the utility model, wherein: the stirring shaft is connected in the end of the shaft, the stirring shaft bottom is connected with first rotating cylinder, the first rotating cylinder outside is provided with second rotating cylinder.

[0008] As a kind of for sodium glucoheptonate production's aspergillus niger fermentation device optional scheme described in the utility model, wherein: the first rotating cylinder is provided with fixed column between the second rotating cylinder, the fixed column is connected in the inner wall of the second rotating cylinder.

[0009] As a kind of for sodium glucoheptonate production's aspergillus niger fermentation device optional scheme described in the utility model, wherein: the fixed column outside is provided with sliding cylinder, the sliding cylinder both sides are connected with first sliding block and second sliding block respectively.

[0010] As a kind of for sodium glucoheptonate production's aspergillus niger fermentation device optional scheme described in the utility model, wherein: the first rotating cylinder outside is equipped with first sliding groove, the first sliding block is slidably engaged with the first sliding groove, the second rotating cylinder inner wall is equipped with second sliding groove, the second sliding block is slidably engaged with the second sliding groove.

[0011] As a kind of for sodium glucoheptonate production's aspergillus niger fermentation device optional scheme described in the utility model, wherein: the first rotating cylinder bottom is connected with first stirring rod, the second rotating cylinder bottom is connected with second stirring rod, the first stirring rod is inserted in the inside of the second stirring rod, and the first stirring rod extends to the outside of second stirring rod.

[0012] As a kind of for sodium glucoheptonate production's aspergillus niger fermentation device optional scheme described in the utility model, wherein: the first stirring rod side is connected with first stirring blade, the second stirring rod side is connected with second stirring blade.

[0013] The utility model has the following beneficial effects:

[0014] 1、The aspergillus niger fermentation device for sodium glucoheptonate production, through the setting of the first rotating cylinder, the material is put into the inside of the fermentation barrel, the servo motor drives the rotating shaft and the stirring shaft at the bottom of the rotating shaft to rotate, the stirring shaft drives the first rotating cylinder to rotate, the first rotating cylinder drives the first stirring rod at the bottom to rotate, the first stirring blade stirs the material, and the sufficient contact of the first stirring blade with the material helps to improve the mass transfer efficiency of oxygen. Oxygen is a key factor for aerobic fermentation, through stirring, bubbles are uniformly distributed in the material, local oxygen deficiency is avoided, normal growth and metabolic activity of microorganisms are ensured, and the problem that insufficient stirring will cause uneven distribution of nutrients in the culture medium is solved. Some areas may have excess nutrients, while other areas may have insufficient nutrients. This unevenness will limit the growth rate and metabolic activity of microorganisms, and reduce the fermentation efficiency.

[0015] 2、The aspergillus niger fermentation device for sodium glucoheptonate production, through the setting of the first sliding block, the first sliding block and the first sliding groove on the side of the first rotating cylinder are slidably engaged, the sliding cylinder is slidably fitted outside the fixed column, the second sliding block and the second sliding groove are slidably engaged, the second rotating cylinder is driven to rotate, the second stirring rod at the bottom of the second rotating cylinder is rotated, and the second stirring blade simultaneously stirs the material. Because the number of turns of the first sliding groove and the second sliding groove is different, the rotating speed of the first stirring rod and the second stirring rod is different, the stirring rods with different rotating speeds can better disperse bubbles and promote the mass transfer of oxygen. In the aerobic fermentation process, the supply of oxygen is one of the key factors. Through stirring at different speeds, bubbles can be more uniformly distributed in the material, local oxygen deficiency is avoided, and normal growth and metabolic activity of microorganisms are ensured. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a three-dimensional structure schematic view of the utility model.

[0017] Figure 2 It is a sectional structure schematic view of the utility model.

[0018] Figure 3 It is a sectional structure schematic view of the second rotating cylinder of the utility model.

[0019] Figure 4 It is a structure schematic view of the second rotating cylinder of the utility model.

[0020] Figure 5 It is a structure schematic view of the first rotating cylinder of the utility model.

[0021] Figure 6 It is an unfolded structure schematic view of the first rotating cylinder of the utility model.

[0022] Figure 7 It is an unfolded structure schematic view of the second rotating cylinder of the utility model.

[0023] Fig. 110, fermentation barrel; 120, feed inlet; 130, discharge outlet; 140, driving mechanism; 141, servo motor; 142, rotating shaft; 143, first rotating cylinder; 144, second rotating cylinder; 145, fixed column; 150, sliding cylinder; 151, first sliding block; 152, second sliding block; 153, first sliding groove; 154, second sliding groove; 160, stirring shaft; 161, first stirring rod; 162, second stirring rod; 163, first stirring blade; 164, second stirring blade. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0025] Embodiment one aims to promote the solution that insufficient stirring will lead to uneven distribution of nutrients such as glucose, inorganic salts, etc. in the culture medium. Some areas may have excess nutrients, while other areas may have insufficient nutrients. This unevenness will limit the growth rate and metabolic activity of microorganisms, reducing the fermentation efficiency. Please refer to Figures 1-7 A fermentation device for the production of sodium glucoheptonate, comprising a fermentation barrel 110, a feed inlet 120 is formed on one side of the fermentation barrel 110, a discharge outlet 130 is formed on the other side of the fermentation barrel 110, a driving mechanism 140 is arranged at the end of the fermentation barrel 110, a stirring shaft 160 is arranged inside the fermentation barrel 110, and the driving mechanism 140 is used in cooperation with the stirring shaft 160.

[0026] The driving mechanism 140 comprises a servo motor 141 and a rotating shaft 142, the rotating shaft 142 is inserted into the end of the fermentation barrel 110, the servo motor 141 is installed on the surface of the fermentation barrel 110, and the output shaft of the servo motor 141 is key-connected with the rotating shaft 142. The stirring shaft 160 is connected to the end of the rotating shaft 142, the first rotating cylinder 143 is connected to the bottom of the stirring shaft 160, and the second rotating cylinder 144 is arranged outside the first rotating cylinder 143.

[0027] The first rotating cylinder 143 and the second rotating cylinder 144 are provided with a fixed column 145, and the fixed column 145 is connected to the inner wall of the second rotating cylinder 144. The fixed column 145 is sleeved with a sliding cylinder 150, and the first sliding block 151 and the second sliding block 152 are respectively connected to the two sides of the sliding cylinder 150.

[0028] In the embodiment, the material is placed in the inside of the fermentation barrel 110 through the setting of the first rotating cylinder 143. The servo motor 141 drives the rotating shaft 142 and the stirring shaft 160 at the bottom of the rotating shaft 142 to rotate. The stirring shaft 160 drives the first rotating cylinder 143 to rotate. The first rotating cylinder 143 drives the first stirring rod 161 at the bottom to rotate. The first stirring blade 163 stirs the material. The full contact of the first stirring blade 163 with the material helps to improve the mass transfer efficiency of oxygen. Oxygen is a key factor of aerobic fermentation. Through stirring, the bubbles are uniformly distributed in the material, avoiding local oxygen deficiency, ensuring the normal growth and metabolic activity of microorganisms, and solving the problem that insufficient stirring will lead to uneven distribution of nutrients such as glucose and inorganic salts in the culture medium. Some areas may have excess nutrients, while other areas may have insufficient nutrients. This unevenness will limit the growth rate and metabolic activity of microorganisms, reducing the fermentation efficiency.

[0029] In the embodiment, the material is placed in the inside of the fermentation barrel 110 through the setting of the first rotating cylinder 143. The servo motor 141 drives the rotating shaft 142 and the stirring shaft 160 at the bottom of the rotating shaft 142 to rotate. The stirring shaft 160 drives the first rotating cylinder 143 to rotate. The first rotating cylinder 143 drives the first stirring rod 161 at the bottom to rotate. The first stirring blade 163 stirs the material. The full contact of the first stirring blade 163 with the material helps to improve the mass transfer efficiency of oxygen. Oxygen is a key factor of aerobic fermentation. Through stirring, the bubbles are uniformly distributed in the material, avoiding local oxygen deficiency, ensuring the normal growth and metabolic activity of microorganisms, and solving the problem that insufficient stirring will lead to uneven distribution of nutrients such as glucose and inorganic salts in the culture medium. Some areas may have excess nutrients, while other areas may have insufficient nutrients. This unevenness will limit the growth rate and metabolic activity of microorganisms, reducing the fermentation efficiency. Figures 1-7 , the first sliding slot 153 is provided on the outside of the first rotating cylinder 143. The first sliding block 151 is slidably engaged with the first sliding slot 153. The second sliding slot 154 is provided on the inner wall of the second rotating cylinder 144. The second sliding block 152 is slidably engaged with the second sliding slot 154. The first stirring rod 161 is connected to the bottom of the first rotating cylinder 143. The second stirring rod 162 is connected to the bottom of the second rotating cylinder 144. The first stirring rod 161 penetrates the inside of the second stirring rod 162 and extends to the outside of the second stirring rod 162. The first stirring blade 163 is connected to the side of the first stirring rod 161. The second stirring blade 164 is connected to the side of the second stirring rod 162.

[0030] In the embodiment, the first sliding block 151 is slidably engaged with the first sliding slot 153 on the side of the first rotating cylinder 143. The sliding cylinder 150 is slidably engaged with the fixed column 145. The second sliding block 152 is slidably engaged with the second sliding slot 154, driving the second rotating cylinder 144 to rotate. The second stirring rod 162 at the bottom of the second rotating cylinder 144 rotates. The second stirring blade 164 simultaneously stirs the material. Because the number of turns of the first sliding slot 153 and the second sliding slot 154 is different, the rotating speed of the first stirring rod 161 and the second stirring rod 162 is different. The stirring rods with different rotating speeds can better disperse the bubbles, promoting the mass transfer of oxygen. In the process of aerobic fermentation, the supply of oxygen is one of the key factors. Through stirring with different rotating speeds, the bubbles can be more uniformly distributed in the material, avoiding local oxygen deficiency, ensuring the normal growth and metabolic activity of microorganisms.

[0031] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0032] The preferred embodiments of the present application have been described above with the preferred embodiments, it should be noted that, for those skilled in the art, without departing from the technical principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements should be considered as the protection scope of the present application.

Claims

1. A fermentation device for sodium glucoheptonate production, comprising a fermentation barrel (110), one side of the fermentation barrel (110) is provided with a feeding port (120), the other side of the fermentation barrel (110) is provided with a discharging port (130), characterized in that: The fermentation barrel (110) is provided with a driving mechanism (140) at the end, and a stirring shaft (160) is arranged in the fermentation barrel (110), wherein the driving mechanism (140) is used in cooperation with the stirring shaft (160).

2. The Aspergillus niger fermentation device for sodium glucoheptonate production according to claim 1, characterized in that: The driving mechanism (140) comprises a servo motor (141) and a rotating shaft (142), the rotating shaft (142) is inserted into the end of the fermentation barrel (110), and the servo motor (141) is installed on the surface of the fermentation barrel (110), and the output shaft of the servo motor (141) is connected with the rotating shaft (142) by a key.

3. The Aspergillus niger fermentation device for sodium glucoheptonate production according to claim 2, characterized in that: The stirring shaft (160) is connected to the end of the rotating shaft (142), the first rotating cylinder (143) is connected to the bottom of the stirring shaft (160), and the second rotating cylinder (144) is arranged outside the first rotating cylinder (143).

4. The Aspergillus niger fermentation device for sodium glucoheptonate production according to claim 3, characterized in that: The first rotating cylinder (143) and the second rotating cylinder (144) are provided with a fixed column (145), and the fixed column (145) is connected to the inner wall of the second rotating cylinder (144).

5. The Aspergillus niger fermentation device for sodium glucoheptonate production according to claim 4, characterized in that: The outer side of the fixed column (145) is sleeved with a sliding cylinder (150), and the first sliding block (151) and the second sliding block (152) are connected to the two sides of the sliding cylinder (150).

6. The Aspergillus niger fermentation device for sodium glucoheptonate production according to claim 5, characterized in that: The outer side of the first rotating cylinder (143) is provided with a first sliding groove (153), the first sliding block (151) is slidably connected with the first sliding groove (153), the inner wall of the second rotating cylinder (144) is provided with a second sliding groove (154), and the second sliding block (152) is slidably connected with the second sliding groove (154).

7. The Aspergillus niger fermentation device for sodium glucoheptonate production according to claim 4, characterized in that: The bottom of the first rotating cylinder (143) is connected with a first stirring rod (161), the bottom of the second rotating cylinder (144) is connected with a second stirring rod (162), the first stirring rod (161) penetrates the inside of the second stirring rod (162), and the first stirring rod (161) extends to the outside of the second stirring rod (162).

8. The Aspergillus niger fermentation device for sodium glucoheptonate production according to claim 7, characterized in that: The side of the first stirring rod (161) is connected with a first stirring blade (163), and the side of the second stirring rod (162) is connected with a second stirring blade (164).

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