A step-type stirring and mixing device for a fermenter

Abstract

The utility model discloses a kind of ladder type mixing device for fermentation tank, belong to fermentation mixing technical field.This one kind of ladder type mixing device for fermentation tank includes fermentation tank and feed pipe, fermentation tank bottom is symmetrically equipped with supporting leg, feed pipe is installed in fermentation tank surface, fermentation tank bottom is equipped with discharge pipe, and fermentation tank surface is equipped with mixing mechanism, and mixing mechanism includes sleeve rod, inner rod and mixing blade, sleeve rod is symmetrically rotatably installed in fermentation tank inner chamber, sleeve rod side wall is fixedly installed with cross bar, and vertical rod is fixedly installed between cross bar.This utility model is mixed by being equipped with mixing mechanism, by motor can drive rotating shaft and second gear rotation, and drive first gear to drive cross bar and vertical rod rotation, and sleeve rod and rotating shaft are equal-speed rotation, and the material on the upper layer of fermentation tank is mixed, and drive third gear and mixing blade synchronous rotation, and the speed of inner rod is three times of rotating shaft, realize high-speed mixing to the material of fermentation tank bottom, realize ladder type stirring.

Description

Technical Field

[0001] This utility model relates to the field of fermentation mixing technology, and in particular to a stepped stirring and mixing device used in fermenters. Background Technology

[0002] Fermenters are widely used equipment in bioengineering and chemical industries, especially in the production of microbial fermentation, enzyme-catalyzed reactions, and bioproducts. To ensure the smooth progress of the fermentation process, the stirring and mixing device plays a crucial role in the fermenter. The stirring device is not only used to maintain the homogeneity of the culture medium, but also to promote gas dissolution, substance transfer, and heat dissipation, which directly affects the efficiency of the fermentation process and the quality of the final product.

[0003] Traditional mixing devices typically employ a single mixing method. However, this method often fails to meet the requirements of certain special fermentation processes. For example, the mixing unit at the top of the fermenter usually requires a lower mixing intensity. Excessive mixing may cause violent mixing of liquid and gas, resulting in excessive bubbles or bubble bursts, which in turn affects the efficiency of dissolved oxygen transfer. On the other hand, the mixing unit at the bottom requires a stronger mixing intensity to ensure sufficient circulation of the culture medium and promote dissolved oxygen transfer. Utility Model Content

[0004] The purpose of this invention is to provide a stepped stirring and mixing device for use in fermenters, so as to solve the problems existing in the background art.

[0005] The objective of this utility model is achieved through the following technical solution: A stepped mixing device for a fermenter includes a fermenter and a feed pipe. Support legs are symmetrically installed at the bottom of the fermenter. The feed pipe is installed on the surface of the fermenter. A discharge pipe is installed at the bottom of the fermenter. A mixing mechanism is installed on the surface of the fermenter for mixing raw materials. The mixing mechanism includes: A sleeve rod is symmetrically and rotatably installed inside the fermenter cavity, and a crossbar is fixedly installed on the side wall of the sleeve rod; Inner rod, which is rotatably mounted inside the sleeve rod cavity; A mixing blade, which is fixedly installed at the bottom of the inner rod, is used to mix the material at the bottom of the fermenter.

[0006] Preferably, a vertical rod is fixedly installed between the horizontal rods, and a first gear is fixedly installed on the surface of the sleeve rod for driving the sleeve rod to rotate.

[0007] Preferably, a mounting frame is fixedly installed on the surface of the fermenter, a motor is fixedly installed on the surface of the mounting frame, and a rotating shaft is fixedly installed at the output end of the motor.

[0008] Preferably, a second gear is fixedly mounted on the surface of the rotating shaft, and the gear ratio between the second gear and the first gear is one to one.

[0009] Preferably, a third gear is fixedly mounted on the surface of the inner rod, and a fourth gear is fixedly mounted on the surface of the rotating shaft, wherein the fourth gear meshes with the third gear.

[0010] Preferably, the gear ratio between the fourth gear and the third gear is three to one.

[0011] Preferably, the fermenter cavity is equipped with a material dispersing mechanism for longitudinally dispersing materials. The material dispersing mechanism includes a material dispersing rod and material dispersing blades. The material dispersing rod is symmetrically rotated and installed on the inner wall of the fermenter, and the material dispersing blades are fixedly installed on the surface of the material dispersing rod.

[0012] Preferably, a protective box is rotatably sleeved on the surface of the sleeve rod, a fifth gear is fixedly installed on the surface of the sleeve rod, and a sixth gear is fixedly installed at one end of the material handling rod, with the sixth gear meshing with the fifth gear.

[0013] The beneficial effects of this utility model are: 1) By setting up a mixing mechanism, the motor can drive the rotating shaft and the second gear to rotate, which in turn drives the first gear to drive the horizontal and vertical rods to rotate. The sleeve rod and the rotating shaft rotate at the same speed, mixing the material in the upper layer of the fermenter. The third gear and the mixing blades rotate synchronously, and the inner rod rotates at three times the speed of the rotating shaft, achieving high-speed mixing of the material at the bottom of the fermenter and realizing step-like stirring. This achieves low-speed stirring of the material in the upper part of the fermenter, avoiding excessive stirring that would cause violent mixing of liquid and gas, resulting in too many bubbles or bubble bursts, which would affect the dissolved oxygen transfer efficiency. At the same time, high-speed mixing at the bottom ensures sufficient circulation of the culture medium and promotes dissolved oxygen transfer.

[0014] 2) By setting up a material dispersing mechanism, when the motor drives the sleeve rod to rotate, it drives the fifth gear to rotate synchronously, thereby driving the sixth gear and the material dispersing rod to rotate synchronously, and the material dispersing blades disperse the material in the fermentation tank longitudinally, thereby improving the uniformity of the material. Attached Figure Description

[0015] Figure 1 A frontal perspective view provided for an embodiment of this utility model; Figure 2 A cross-sectional view provided for an embodiment of this utility model; Figure 3 Provided for the embodiments of this utility model Figure 2 Enlarged view of point A in the middle; Figure 4 A perspective view of the sleeve rod provided for an embodiment of this utility model.

[0016] In the diagram, 1. Fermentation tank; 2. Support leg; 3. Feed pipe; 4. Discharge pipe; 5. Mixing mechanism; 501. Sleeve rod; 502. Horizontal bar; 503. Vertical bar; 504. First gear; 505. Mounting frame; 506. Motor; 507. Shaft; 508. Second gear; 509. Inner rod; 510. Mixing blade; 511. Third gear; 512. Fourth gear; 6. Distributing mechanism; 601. Distributing rod; 602. Distributing blade; 603. Protective box; 604. Fifth gear; 605. Sixth gear. Detailed Implementation

[0017] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0018] See Figures 1-4 This utility model provides a technical solution: like Figures 1-4 As shown, a stepped mixing device for a fermenter includes a fermenter 1 and a feed pipe 3. Support legs 2 are symmetrically installed at the bottom of the fermenter 1. The feed pipe 3 is installed on the surface of the fermenter 1 for feeding materials. A discharge pipe 4 is installed at the bottom of the fermenter 1 for discharging materials. A mixing mechanism 5 is installed on the surface of the fermenter 1 for mixing raw materials. The mixing mechanism 5 includes a sleeve rod 501, an inner rod 509, and a mixing blade 510. The sleeve rod 501 is symmetrically rotated and installed in the inner cavity of the fermenter 1. A horizontal rod 502 is fixedly installed on the side wall of the sleeve rod 501. A vertical rod 503 is fixedly installed between the horizontal rods 502 for mixing the upper layer of materials in the fermenter 1.

[0019] like Figures 1-4 As shown, further, a first gear 504 is fixedly mounted on the surface of the sleeve rod 501 for driving the sleeve rod 501 to rotate. A mounting frame 505 is fixedly mounted on the surface of the fermentation tank 1. A motor 506 is fixedly mounted on the surface of the mounting frame 505. A rotating shaft 507 is fixedly mounted on the output end of the motor 506. A second gear 508 is fixedly mounted on the surface of the rotating shaft 507. The gear ratio between the second gear 508 and the first gear 504 is 1:1. The motor 506 can drive the rotating shaft 507 and the second gear 508 to rotate, and drive the first gear 504 to drive the horizontal rod 502 and the vertical rod 503 to rotate. The sleeve rod 501 and the rotating shaft 507 rotate at the same speed to mix the material in the upper layer of the fermentation tank 1.

[0020] like Figures 1-4As shown, the inner rod 509 is rotatably installed in the inner cavity of the sleeve rod 501, and the mixing blade 510 is fixedly installed at the bottom of the inner rod 509 for mixing the material at the bottom of the fermenter 1. A third gear 511 is fixedly installed on the surface of the inner rod 509, and a fourth gear 512 is fixedly installed on the surface of the rotating shaft 507. The fourth gear 512 meshes with the third gear 511, and the gear ratio between the fourth gear 512 and the third gear 511 is three to one. When the rotating shaft 507 and the fourth gear 512 are driven to rotate by the motor 506, the third gear 511 and the mixing blade 510 can be driven to rotate synchronously. The rotation speed of the inner rod 509 is three times that of the rotating shaft 507, thereby achieving high-speed mixing of the material at the bottom of the fermenter 1 and realizing step-type stirring.

[0021] With the above technical solution, during use, the motor 506 drives the rotating shaft 507 and the second gear 508 to rotate, and drives the first gear 504 to drive the horizontal rod 502 and the vertical rod 503 to rotate. The sleeve rod 501 and the rotating shaft 507 rotate at the same speed, mixing the material in the upper layer of the fermenter 1. The motor also drives the third gear 511 and the mixing blade 510 to rotate synchronously. The inner rod 509 rotates at three times the speed of the rotating shaft 507, achieving high-speed mixing of the material at the bottom of the fermenter 1 and step-like stirring. This achieves low-speed stirring of the material in the upper part of the fermenter 1, avoiding excessive stirring that could cause violent mixing of liquid and gas, resulting in too many bubbles or bubble bursts, which would affect the dissolved oxygen transfer efficiency. At the same time, high-speed mixing at the bottom ensures sufficient circulation of the culture medium and promotes dissolved oxygen transfer.

[0022] like Figures 1-4 As shown, the fermenter 1 is further equipped with a material dispersing mechanism 6 for longitudinally dispersing materials. The material dispersing mechanism 6 includes a material dispersing rod 601 and a material dispersing blade 602. The material dispersing rod 601 is symmetrically and rotatably installed on the inner wall of the fermenter 1. The material dispersing blade 602 is fixedly installed on the surface of the material dispersing rod 601. A protective box 603 is rotatably sleeved on the surface of the sleeve rod 501. A fifth gear 604 is fixedly installed on the surface of the sleeve rod 501. A sixth gear 605 is fixedly installed at one end of the material dispersing rod 601. The sixth gear 605 meshes with the fifth gear 604.

[0023] With the above technical solution, when the motor 506 drives the sleeve rod 501 to rotate, it drives the fifth gear 604 to rotate synchronously, thereby driving the sixth gear 605 and the material dispersing rod 601 to rotate synchronously, and the material dispersing blade 602 longitudinally disperses the material in the fermentation tank 1, improving the uniformity of the material.

[0024] Preferably, during use, the motor 506 drives the rotating shaft 507 and the second gear 508 to rotate, and drives the first gear 504 to drive the horizontal rod 502 and the vertical rod 503 to rotate. The sleeve rod 501 and the rotating shaft 507 rotate at the same speed to mix the material in the upper layer of the fermenter 1. The motor also drives the third gear 511 and the mixing blade 510 to rotate synchronously. The inner rod 509 rotates at three times the speed of the rotating shaft 507, achieving high-speed mixing of the material at the bottom of the fermenter 1 and realizing step-like stirring. This achieves low-speed stirring of the material in the upper part of the fermenter 1, avoiding excessive stirring that could cause violent mixing of liquid and gas, resulting in too many bubbles or bubble bursts, which would affect the dissolved oxygen transfer efficiency. At the same time, high-speed mixing at the bottom ensures sufficient circulation of the culture medium and promotes dissolved oxygen transfer.

[0025] Preferably, when in use, when the motor 506 drives the sleeve rod 501 to rotate, it drives the fifth gear 604 to rotate synchronously, thereby driving the sixth gear 605 and the material dispersing rod 601 to rotate synchronously, and the material dispersing blade 602 longitudinally disperses the material in the fermentation tank 1, improving the uniformity of the material.

[0026] The above are merely preferred embodiments of this utility model. It should be understood that this utility model is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the concept described herein through the above teachings or the technology or knowledge in related fields. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this utility model should be protected within the scope of the appended claims.

Claims

1. A ladder type stirring mixing device for a fermentation tank, comprising a fermentation tank (1) and a feeding pipe (3), wherein the fermentation tank (1) is symmetrically provided with supporting legs (2) at the bottom, the feeding pipe (3) is installed on the surface of the fermentation tank (1), and a discharging pipe (4) is installed at the bottom of the fermentation tank (1), characterized in that, The fermenter (1) is equipped with a mixing mechanism (5) for mixing raw materials. The mixing mechanism (5) includes: A sleeve rod (501) is symmetrically and rotatably installed in the inner cavity of the fermenter (1), and a crossbar (502) is fixedly installed on the side wall of the sleeve rod (501). Inner rod (509), which is rotatably mounted in the inner cavity of sleeve rod (501); Mixing blade (510), which is fixedly installed at the bottom of the inner rod (509), is used to mix the material at the bottom of the fermenter (1).

2. A step agitator mixing device for use in a fermenter as claimed in claim 1, wherein: A vertical rod (503) is fixedly installed between the horizontal rods (502), and a first gear (504) is fixedly installed on the surface of the sleeve rod (501) for driving the sleeve rod (501) to rotate.

3. A step agitator mixing device for use in a fermenter as claimed in claim 2, wherein: A mounting bracket (505) is fixedly installed on the surface of the fermentation tank (1), a motor (506) is fixedly installed on the surface of the mounting bracket (505), and a rotating shaft (507) is fixedly installed at the output end of the motor (506).

4. A step agitator mixing device for use in a fermenter as claimed in claim 3, wherein: A second gear (508) is fixedly mounted on the surface of the rotating shaft (507), and the gear ratio of the second gear (508) to the first gear (504) is one to one.

5. A step agitator mixing device for use in a fermenter as claimed in claim 3, wherein: A third gear (511) is fixedly installed on the surface of the inner rod (509), and a fourth gear (512) is fixedly installed on the surface of the rotating shaft (507). The fourth gear (512) meshes with the third gear (511).

6. The stepped stirring and mixing device for use in a fermenter according to claim 5, characterized in that: The gear ratio between the fourth gear (512) and the third gear (511) is three to one.

7. The stepped stirring and mixing device for use in a fermenter according to claim 1, characterized in that: The fermentation tank (1) is equipped with a material dispersing mechanism (6) for longitudinally dispersing materials. The material dispersing mechanism (6) includes a material dispersing rod (601) and a material dispersing blade (602). The material dispersing rod (601) is symmetrically rotated and installed on the inner wall of the fermentation tank (1). The material dispersing blade (602) is fixedly installed on the surface of the material dispersing rod (601).

8. The stepped stirring and mixing device for use in a fermenter according to claim 7, characterized in that: The sleeve rod (501) is rotatably sleeved with a protective box (603), and a fifth gear (604) is fixedly installed on the surface of the sleeve rod (501). A sixth gear (605) is fixedly installed at one end of the material handling rod (601), and the sixth gear (605) meshes with the fifth gear (604).

Images