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CN-121991785-A - Stirring device for fermentation tank

CN121991785ACN 121991785 ACN121991785 ACN 121991785ACN-121991785-A

Abstract

The invention relates to the technical field of biological fermentation, and particularly discloses a stirring device for a fermentation tank, which comprises a stirring assembly, wherein the stirring assembly comprises a stirring barrel, an end cover is fixed at the top of the stirring barrel in a sealing manner, a motor is fixed at the top of the end cover, a motor shaft which is coaxial with the stirring barrel and hollow in the interior is arranged in the center of the motor, the motor shaft penetrates through the end cover and is connected with a stirring shaft in a sliding manner through a connecting piece, a sliding groove I which is hollow in the connecting piece and is connected with the motor shaft in a sliding manner is formed in the connecting piece, a plurality of air holes I communicated with the interior of the stirring barrel are formed in the outer wall of the connecting piece, a second air hole is formed in the two ends of the motor shaft, one end of the second air hole is communicated with the connecting piece, a plurality of support shafts are fixedly connected in the length direction of the stirring shaft, and each two support shafts are one group for solving the problem of stirring effect and single function of the traditional stirring device.

Inventors

  • HU ZHENGZHONG
  • YIN XUEGAO
  • WANG XIANG
  • GAO CHENGFU

Assignees

  • 江苏大明生物工程装备有限公司

Dates

Publication Date
20260508
Application Date
20251231

Claims (10)

  1. 1. The stirring device for the fermentation tank is characterized by comprising a stirring assembly (1), wherein the stirring assembly (1) comprises a stirring barrel (101), an end cover (102) is fixed at the top of the stirring barrel (101) in a sealing manner, a motor (103) is fixed at the top of the end cover (102), a motor shaft (1031) which is coaxial with the stirring barrel (101) and hollow in the interior is arranged in the center of the motor (103), and the motor shaft (1031) penetrates through the end cover (102) and is connected with a stirring shaft (104) in a sliding manner through a connecting piece (1032); The inside of the connecting piece (1032) is hollow and provided with a first sliding groove (10321) which is in sliding connection with the motor shaft (1031), and the outer wall of the connecting piece (1032) is provided with a plurality of first air holes (10322) which are communicated with the inside of the stirring barrel (101); two ends of the motor shaft (1031) are provided with air holes II (10311), one end of the motor shaft is communicated with the connecting piece (1032), and the air holes II (10311) at the other end of the motor shaft are communicated with the external environment; a plurality of groups of support shafts (105) are fixedly connected along the length direction of the stirring shaft (104), every two support shafts (105) are in a group, the two support shafts (105) are arranged symmetrically based on the center of the stirring shaft (104), and one end, far away from the stirring shaft (104), of each support shaft (105) is rotationally connected with a sliding component (2); corrugated plates (106) are spirally wound on the inner wall of the stirring barrel (101), the corrugated plates (106) are regular corrugations, and the plate surfaces of the corrugated plates are tightly attached and fixed with the inner wall of the stirring barrel (101); The sliding assembly (2) comprises a rotating shaft (201) which is rotationally connected with the stirring shaft (104), and stirring paddles (202) which are symmetrically arranged based on the axis are fixedly connected to the outer wall of the rotating shaft (201); The stirring device is characterized in that a limiting block (203) is fixed at one end of the rotating shaft (201) away from the stirring shaft (104), the limiting block (203) faces the corrugated plate (106) and is longitudinally provided with a sliding groove (2031), a limiting wheel (2032) is fixedly connected to the inner bottom of the sliding groove (2031), a sliding wheel (2033) is slidingly connected to the inner top of the sliding groove (2031), and the interval between the sliding wheel (2033) and the limiting wheel (2032) is matched with the thickness of the corrugated plate (106) so that the corrugated plate (106) can be embedded between the two and in relative rolling fit.
  2. 2. The stirring device for the fermentation tank, as set forth in claim 1, is characterized in that an annular groove (1011) is formed in the center of the inner bottom of the stirring barrel (101) in a coaxial mode, the groove depth of the annular groove (1011) is larger than that of other areas of the bottom of the stirring barrel (101) so as to facilitate fermentation liquid convergence, a plurality of liquid outlet channels (1012) penetrating through the bottom of the stirring barrel (101) are uniformly formed in the bottom of the annular groove (1011), and each liquid outlet channel (1012) is communicated with the inside of the liquid collecting box (3).
  3. 3. The stirring device for a fermenter according to claim 2, wherein a filter disk (1013) is detachably fixed in the annular groove (1011) by means of bolts, the filter disk (1013) is made of a stainless steel porous filter material, the outer diameter of which is adapted to the inner diameter of the annular groove (1011) and completely covers the area of the annular groove (1011).
  4. 4. A stirring device for a fermentation tank according to claim 3, wherein a sealing disk (1014) is in clearance fit in the liquid outlet channel (1012), the sealing disk (1014) is made of corrosion-resistant rubber, the diameter of the sealing disk is larger than the total coverage area of the liquid outlet channel (1012), the sealing disk can completely cover the upper end openings of all the liquid outlet channels (1012), and the sealing disk (1014) is tightly attached to the bottom of an annular groove (1011) at the inner bottom of the stirring barrel (101).
  5. 5. The stirring device for the fermentation tank according to claim 4, wherein the center of the bottom of the sealing disc (1014) is fixedly connected with a lifting mechanism (4) through a bolt, the lifting mechanism (4) comprises a supporting arm (401) and a cylinder (402), the supporting arm (401) is in a cross-shaped structure, the center of the supporting arm is fixed with the bottom of the sealing disc (1014), two ends of the supporting arm extend to the outer side of the stirring tank (101), two cylinders (402) are symmetrically hinged to the outer wall of the stirring tank (101), the ends of the cylinder bodies of the cylinders (402) are hinged to the outer wall of the stirring tank (101) through hinging seats, and the output ends of the cylinders (402) are vertically upwards and are hinged to the ends of the supporting arm (401) through hinging blocks.
  6. 6. The stirring device for a fermentation tank of claim 5, wherein the end cover (102) is provided with a liquid feed inlet (1021) and a solid feed inlet (1022) symmetrically along the circumferential direction, the liquid feed inlet (1021) is used for introducing liquid fermentation materials or additives, the solid feed inlet (1022) is used for inputting solid fermentation materials, and the liquid feed inlet (1021) and the solid feed inlet (1022) are respectively provided with a sealing cover in a matched manner.
  7. 7. The stirring device for a fermentation tank, as set forth in claim 6, characterized in that a solid feeding assembly (5) is disposed on one side of the stirring assembly (1), the solid feeding assembly (5) comprises a support and a conveying auger (501) mounted on the support, the conveying auger (501) is obliquely arranged and conveys materials in the bottom-to-top direction, a feeding hopper is disposed at a feeding end of the conveying auger (501) so as to facilitate centralized feeding of solid materials, the feeding end of the conveying auger extends to a position right above a solid feeding port (1022) of the end cover (102), and a discharging port of the feeding end corresponds to the position of the solid feeding port (1022), so that the conveyed solid materials can fall into the stirring tank (101) accurately.
  8. 8. A stirring device for a fermenter according to claim 7, wherein the conveyor screw (501) is provided with a drive motor for controlling the feed rate by adjusting the rotational speed of the drive motor.
  9. 9. A stirring device for a fermenter according to claim 8, wherein the corrugated plate (106) has a regular wave-like structure with a wave direction at a predetermined angle to the axis of the stirrer (101).
  10. 10. A stirring device for a fermenter according to claim 9, wherein the bottom of the stirring vessel (101) is fixed with a liquid collecting tank (3) by bolts, the liquid collecting tank (3) has a tank structure with an upper end opened, and the opening end is closely attached to the bottom of the stirring vessel (101).

Description

Stirring device for fermentation tank Technical Field The invention relates to the technical field of biological fermentation, in particular to a stirring device for a fermentation tank. Background In many fields such as biological fermentation, food processing and pharmacy, a fermentation tank is an indispensable key device, and the key function of the fermentation tank is to provide a proper environment for the growth, metabolism and chemical reaction of microorganisms so as to realize the efficient production of target products. The stirring device is used as a key component of the fermentation tank and plays a critical role in the fermentation process. Most stirring devices of the traditional fermentation tanks are simple in structure, and stirring shafts are usually only used for driving stirring paddles to perform unidirectional rotary stirring. The stirring mode has the limitations of uneven stirring effect, single function and the like. Specifically, the material of the different positions in the fermentation cylinder of unidirection stirring difficulty intensive mixing leads to there being stirring dead angle in the jar, and the material of partial region can't obtain intensive mixing for microorganism growth environment is inconsistent, influences fermentation efficiency and product quality. Traditional stirring devices mainly focus on mixing of materials and have limited capability of treating gases generated in the fermentation process. If the gas generated in the fermentation process can not be discharged in time, the gas can accumulate in the tank to influence the respiration and the metabolic activity of microorganisms, and even the pressure in the tank is too high, so that the safety problem is caused. Meanwhile, for some fermentation processes requiring a specific gas environment, such as anaerobic fermentation, it is difficult to achieve effective gas control with conventional stirring devices. Along with the continuous development of biotechnology and the increasing requirement on the quality of fermented products, the limitations of the traditional fermentation tank stirring device are more remarkable, and the high-efficiency, stable and accurate production requirements of the modern fermentation industry are difficult to meet. Therefore, a stirring device for a fermentation tank is provided at present for solving the problem of single function of the stirring effect of the existing stirring device. Disclosure of Invention The invention aims to provide a stirring device for a fermentation tank, which is used for solving the problems in the background technology. In order to achieve the above purpose, the present invention adopts the following technical scheme: The stirring device for the fermentation tank comprises a stirring assembly, wherein the stirring assembly comprises a stirring barrel, an end cover is fixed at the top of the stirring barrel in a sealing way, a motor is fixed at the top of the end cover, a motor shaft which is coaxial with the stirring barrel and hollow in the interior is arranged in the center of the motor, and a stirring shaft penetrates through the end cover and is connected with the motor shaft in a sliding way through a connecting piece; the inside of the connecting piece is hollow and provided with a first sliding groove which is in sliding connection with the motor shaft, and the outer wall of the connecting piece is provided with a plurality of first air holes which are communicated with the inside of the stirring barrel; two ends of the motor shaft are provided with air holes II, one end of the motor shaft is communicated with the connecting piece, and the air holes II at the other end of the motor shaft are communicated with the external environment; A plurality of groups of support shafts are fixedly connected along the length direction of the stirring shaft, every two support shafts are in a group, the two support shafts are symmetrically arranged based on the center of the stirring shaft, and one end, far away from the stirring shaft, of each support shaft is rotationally connected with a sliding assembly; the inner wall of the stirring barrel is spirally surrounded by a corrugated plate, the corrugated plate is regular corrugated, and the plate surface of the corrugated plate is tightly attached and fixed with the inner wall of the stirring barrel; The sliding component comprises a rotating shaft which is rotationally connected with the stirring shaft, and stirring paddles which are symmetrically arranged based on the axis are fixedly connected to the outer wall of the rotating shaft; The utility model discloses a stirring shaft, including the stirring axle, the axis of rotation is kept away from (mixing) shaft one end is fixed with the stopper, the stopper orientation the buckled plate has vertically been seted up to the sliding tray, fixed connection has spacing wheel in the sliding tray, top sliding connection has the movable pulley in the sliding