Fermentation tank for microbial inoculum production

Abstract

The utility model relates to the technical field of fermentation tanks, in particular to a fermentation tank for microbial inoculum production. Comprising a transversely-arranged tank body and an upper cover plate at an upper port of the tank body, the bottom surface of the tank body is a semicircular cylinder, a rotating shaft is arranged at the center axis of the bottom surface, the two ends of the rotating shaft are installed on the tank body, at least two sets of stirring rods are fixed to the rotating shaft in the length direction, and each set of stirring rods is arranged in the circumferential direction of the rotating shaft; one end of the rotating shaft penetrates through the tank body and is connected with an output shaft of the motor; a thermal insulation interlayer is arranged between an inner tank body and an outer tank body of the tank body, a longitudinal pipe perpendicular to the rotating shaft is arranged on the upper portion of the tank body, the front end and the rear end of the longitudinal pipe are open, the longitudinal pipe is communicated with the thermal insulation interlayer through the front end and the rear end of the longitudinal pipe, and temperature control pipelines are arranged in the longitudinal pipe and the thermal insulation interlayer. According to the device, the temperature can be quickly transferred to the inside of a fermentation material, the stirring homogenization is accelerated, and the production efficiency and quality are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fermentation tanks, in particular to a fermentation tank for producing bacterial agents. Background Art

[0002] The production of microbial agents generally uses fermentation equipment for batch culture, controlling temperature, pH value, ventilation volume and other conditions to promote large-scale reproduction of microbial strains.

[0003] In the existing bacterial agent production, the temperature control mechanism of the fermentation tank is generally arranged in the interlayer at the bottom or side of the device. When the temperature is adjusted during the bacterial agent fermentation process, it takes a long time to transfer the temperature to the inside of the tank body by relying solely on the temperature control mechanism at the bottom or side. In addition, the bacterial agent needs to be stirred during the fermentation process to speed up the fermentation speed. The existing fermentation tank stirring mechanism only plays an internal stirring role and cannot stir the materials at different circumferential parts, which makes the fermentation tank not efficient enough, resulting in low production efficiency, and cannot ensure the adjustment of pH value and proper ventilation, thereby affecting the quality of the fermented materials and causing serious economic losses. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a fermentation tank for producing bacterial agents. The technical solution adopted by the utility model is as follows:

[0005] A fermentation tank for producing bacterial agents, comprising a tank body arranged transversely and an upper cover plate at an upper port of the tank body, wherein the bottom surface of the tank body is a part of a cylinder, a rotating shaft is arranged at the central axis of the bottom surface, two ends of the rotating shaft are mounted on two end surfaces of the tank body, at least two groups of stirring rods are fixed on the rotating shaft along its length direction, and each group of stirring rods is arranged along the circumference of the rotating shaft; one end of the rotating shaft passes through the tank body and is connected to the output shaft of the motor;

[0006] The tank body includes an inner tank body and an outer tank body, an insulation interlayer is arranged between the inner tank body and the outer tank body, a longitudinal tube perpendicular to the rotating shaft and with front and rear end openings is arranged on the upper part of the tank body, the longitudinal tube is communicated with the insulation interlayer through its front and rear end openings, and a temperature control pipeline is arranged in the longitudinal tube and the insulation interlayer.

[0007] Furthermore, a medicine delivery pipe is arranged along the rotation axis direction on the upper part of the tank body, and a medicine outlet hole is arranged on the part of the medicine delivery pipe in the inner tank body.

[0008] Furthermore, the cross section of the longitudinal tube along the rotation axis direction is V-shaped, and the longitudinal tube is composed of a tube body at the lower part and a tube body cover plate at the upper end of the tube body.

[0009] Furthermore, protruding anti-rotation blocks are provided at corresponding perforations on the medicine delivery tube and the longitudinal tube.

[0010] Furthermore, the temperature control pipe is continuously coiled in an S shape along the circumference of the thermal insulation interlayer, and the temperature control pipe in the longitudinal tube is connected between the temperature control pipes on the front and rear sides of the thermal insulation interlayer or to the temperature control pipes on the front and rear sides.

[0011] Furthermore, the stirring rods on the rotating shaft include a long-rod stirring rod group and a short-rod stirring rod group arranged at intervals, a stirring block is arranged at the end of each stirring rod, and the position of the longitudinal tube corresponds to the position between the short-rod stirring rod group or the long-rod stirring rod group and the long-rod stirring rod group.

[0012] Beneficial effects of the utility model:

[0013] 1. The device arranges the tank body horizontally, including an inner tank body and an outer tank body, and forms a heat-insulating interlayer between the inner and outer tank bodies. A longitudinal tube is provided at the upper end of the inner tank body, and a cavity connected to the heat-insulating interlayer is formed by the longitudinal tube. When the bacterial agent is temperature-regulated during the fermentation process, the temperature can be quickly transferred to the inside of the fermented material, thereby improving production efficiency.

[0014] 2. Stirring rods of different lengths are arranged on the side of the stirring shaft inside the tank body. A stirring block is arranged at the end of each stirring rod, which can change the flow direction of the liquid during stirring to a certain extent, accelerate homogenization, enhance uniformity, and evenly mix the bacterial agents at different circumferential positions, so that the bacterial agents can reach the required conditions faster, so that the bacterial agents can grow better, ensure the mixing effect and quality of the bacterial agents and strains, and improve production efficiency.

[0015] 3. The drug delivery pipe is arranged on the upper part of the tank body along the direction of the rotating axis, which passes through the tank body and the longitudinal tube, and the drug delivery pipe is provided with a drug outlet hole on the part in the inner tank body, which can provide drugs and oxygen to the inside of the tank body, ensure the pH value and proper ventilation, thereby improving the fermentation quality of the bacterial agent and enhancing the force-bearing capacity of the longitudinal tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main cross-section structure of the utility model;

[0017] Figure 2 for Figure 1 A partial enlarged view of the middle part;

[0018] Figure 3 for Figure 1 Cross-sectional view in the BB direction;

[0019] Figure 4 This is a schematic diagram of the top view of the outer tank body of the utility model;

[0020] Figure 5 This is a schematic diagram of the top view of the inner tank body of the utility model;

[0021] Figure 6It is a schematic diagram of the partial cross-sectional structure of the medicine delivery tube of the utility model.

[0022] In the figure, 1, inner tank body, 2, outer tank body, 3, upper cover plate, 31, sealing ring, 4, exhaust valve, 5, longitudinal tube, 6, tube cover plate, 7, medicine delivery pipe, 8, medicine outlet hole, 9, temperature control pipeline, 10, thermal insulation interlayer, 11, stirring drive device, 111, motor, 112, pulley, 113, belt, 114, protective cover, 12, support block, 13, rotating shaft, 14, long rod stirring rod, 15, short rod stirring rod, 16, supporting leg, 17, discharge channel, 18, feed channel, 19, electric control box, 20, anti-rotation block, 21, discharge port, 22, stirring block, 23, buckle, 24, temperature control pipeline inlet, 25, temperature control pipeline outlet, 26, connection port. DETAILED DESCRIPTION

[0023] The present invention will be further described below in conjunction with specific embodiments. Figure 1 The top, bottom, left, right, front and back sides of this embodiment are defined as shown.

[0024] As shown in the figure, the fermentation tank for bacterial agent production includes a tank body of a horizontal device and an upper cover plate 3 at the upper port of the tank body. The bottom surface of the tank body is a part of a cylinder. The tank body is composed of an outer tank body 2 and an inner tank body 1. The bottom of the outer tank body 2 is provided with support legs 16, which are in an inverted V-shaped structure to support the tank body more firmly. An electric control box 19 is fixedly provided between the two support legs 16 on the front side of the outer tank body 2 to achieve automation. A stirring drive device 11 is provided on the right side, and the stirring drive device 11 is connected and matched with one end of the rotating shaft 13 passing through the tank body through a key. Arc-shaped support blocks 12 that fit the arc-shaped bottom surface are provided on both sides of the inner bottom surface of the outer tank body 2. The support blocks 12 are in a step-like shape and are used to support the inner tank body 1, limit the position of the inner tank body 1, and ensure the interval between the inner tank body 1 and the outer tank body 2.

[0025] The tank body of this embodiment includes an inner tank body 1 and an outer tank body 2. The outer diameter of the inner tank body 1 is smaller than that of the outer tank body 2. A certain interval is formed between them as an insulation interlayer 10. A temperature control pipe 9 is arranged in the insulation interlayer 10. The temperature control pipe 9 is continuously coiled in an S shape along the circumference of the insulation interlayer 10. This structure has low water flow resistance, which is convenient for rapid heating and cooling and prevents backflow. The temperature control pipe 9 is fixed in the insulation interlayer 10 through the buckle 23 on the inner circumference of the outer tank body 2. The temperature control pipe inlet 24 and the temperature control pipe outlet 25 are located on one side of the upper part of the outer tank body 2 and are arranged in parallel. When adjusting the temperature, a hot medium or a cold medium is introduced to meet the temperature requirements. And the temperature control pipe 9 has reserved connection ports 26 on both the front and rear sides or on one of the front and rear sides.

[0026] The upper end of the inner tank body 1 is provided with two longitudinal tubes 5 perpendicular to the direction of the rotating shaft 13. The cross section of the longitudinal tube 5 along the direction of the rotating shaft 13 is V-shaped. It is composed of a lower tube body and a tube body cover plate 6 at the upper end of the tube body, and the front and rear openings are connected to the thermal insulation interlayer 10. A temperature control pipe 9 is also provided, which is coiled in the two longitudinal tubes 5, and the temperature control pipes 9 in the two longitudinal tubes 5 are connected. Through the front and rear openings, the temperature control pipes 9 in the two longitudinal tubes 5 can be connected to the temperature control pipes 9 on the front and rear sides of the thermal insulation interlayer 10 or the reserved connection ports 26 on the temperature control pipes 9 on the front and rear sides. In this embodiment, the reserved connection ports 26 on the temperature control pipes 9 on the front side of the thermal insulation interlayer 10 are connected to the temperature control pipes 9 in the two longitudinal tubes 5, so that the temperature control pipes 9 are connected to each other, and the temperature distribution in the tank body is more uniform, which promotes the fermentation of the raw materials in each part of the tank body. The upper end of the longitudinal tube 5 is also provided with a perforation that cooperates with the anti-rotation block 20 of the drug delivery pipe 7.

[0027] In this embodiment, the tank body is provided with two medicine delivery tubes 7, which are arranged along the direction of the rotating shaft 13 at the upper part of the tank body and located on both sides of the rotating shaft 13. They pass through the perforations of the tank body and the longitudinal tube 5, which can enhance the force bearing capacity of the longitudinal tube 5. The medicine delivery tube 7 is sealed with the tank body, and the outer wall of the outer tank body 2 through which one end of the medicine delivery tube 7 is penetrated is provided with a stepped hole, and a sealing gasket is provided in the stepped hole, and the outer wall of the port of the medicine delivery tube 7 is provided with a thread, and is fixedly connected with the stepped hole of the outer tank body 2 through an internal and external thread nut, and the medicine delivery tube 7 is fixedly connected with the outer tank body 2 through the internal and external thread nut to prevent it from falling off.

[0028] A medicine outlet hole 8 is provided on the part of the medicine delivery tube 7 in the inner tank body 1, and a protruding anti-rotation block 20 is provided at the corresponding perforation on the longitudinal tube 5. The medicine outlet hole 8 and the anti-rotation block 20 are arranged on the same horizontal line, and the perforation of the longitudinal tube 5 cooperates with the anti-rotation block 20 so that the medicine outlet hole 8 faces the center of the tank body.

[0029] The upper part of the tank body of this embodiment is rectangular, and the bottom is semi-cylindrical. A rotating shaft 13 is arranged at the central axis of the bottom of the tank body. Both ends of the rotating shaft 13 are mounted on the left and right end faces of the inner tank body 1 with rolling bearings. A flat key is arranged at one end facing the stirring drive device 11, and the rotating shaft 13 passes through the tank body and is connected to the stirring drive device 11 by a key. At least two groups of stirring rods are fixed along the length direction of the rotating shaft 13, including a long-rod stirring rod group and a short-rod stirring rod group arranged at intervals. Each group of stirring rods is evenly arranged with four identical stirring rods along the circumference of the rotating shaft 13. A stirring block 22 is arranged at the end of each stirring rod. The stirring block 22 of the long-rod stirring rod 14 is slightly thicker than the stirring block 22 of the short-rod stirring rod 15, which can accelerate homogenization and enhance the uniformity of stirring.

[0030] This embodiment uses 6 groups of long-rod stirring rods 14 and 5 groups of short-rod stirring rods 15 according to the length of the tank body. The short-rod stirring rod groups are respectively arranged in the intervals of the long-rod stirring rod groups to ensure the stability of the stirring process. The two longitudinal tubes 5 arranged at the upper end of the inner tank body 1 are located between the short-rod stirring rod group or the long-rod stirring rod group and the long-rod stirring rod group. The length of the short-rod stirring rod 15 is shorter than the longitudinal tube 5 to ensure that the movement of the stirring rod is not hindered.

[0031] The stirring drive device 11 includes a motor 111, a pulley 112, a belt 113 and a protective cover 114. The pulley 112 is arranged on the outer tank body 2 in conjunction with a bearing. A keyway is arranged at the central axis of the pulley 112, and a key connection is achieved with one end of the rotating shaft 13 provided with a flat key. The pulley 112 is connected to the main shaft of the motor 111 through the belt 113. The motor 111 is started to drive the rotating shaft 13, thereby driving the stirring rod to rotate and achieving uniform stirring of the material; the protective cover 114 is sleeved on the outside of the stirring drive device 11 and fixedly installed by bolt connection to ensure its safe use and convenient installation and maintenance.

[0032] The bottom of the tank body in this embodiment is a part of a cylinder, which is an arc surface and shrinks toward the center of the bottom. A discharge port 21 is arranged above the support block 12 on the left side of the tank body. To ensure discharge, a groove with a certain inclined surface is arranged at the center of the bottom surface of the tank body. The discharge port 21 in this embodiment is arranged as a T-shaped through hole, with a large diameter facing outward and provided with a thread. The discharge channel 17 is screwed into the discharge port 21 through a threaded connection and abuts against the step of the T-shaped through hole. A sealing gasket is arranged at the step to ensure the sealing of the discharge port 21 of the tank body and the convenience of installation. The discharge channel 17 is provided with a solenoid valve.

[0033] The bottom surface of the upper cover plate 3 of this embodiment is provided with a sealing ring 31 that matches with the upper end of the heat-insulating interlayer 10 to ensure sealing; a feed channel 18 is provided on one side of the upper end. The edge of the upper cover plate 3 is also provided with a threaded through hole that matches with the threaded hole at the upper end of the outer tank body 2, and the upper cover plate and the outer tank body are fixedly connected by bolts. When necessary, the upper cover plate 3 can be opened to clean the inside of the inner tank body 1; or the inner tank body 1 can be taken out from the outer tank body 2 to facilitate the maintenance and installation of the temperature control pipeline 9.

[0034] In order to ensure that the internal pressure of the fermentation tank is balanced when the fermentation tank is working, an exhaust valve 4 is added to the upper cover plate 3.

[0035] During the use of this embodiment, first, when the bacterial agent is fermented through the fermentation tank, the electric control box 19 controls the electrical start during the fermentation process, and the bacterial agent enters the inner tank body 1 of the fermentation tank through the feed channel 18 set on the upper cover plate 3. The agent delivery pipe 7 delivers the agent and oxygen into the inner tank body 1. When the stirring drive device 11 is started, the motor 111 drives the rotating shaft 13 to rotate, so that the long rod stirring rod 14 and the short rod stirring rod 15 are stirred. The stirring blocks 22 located at different circumferential positions enhance the stirring effect. At the same time, when the temperature control pipe 9 in the thermal insulation interlayer 10 is heated and cooled, the longitudinal temperature control pipe 9 set in the cavity formed by the longitudinal pipe 5 makes the temperature distribution in the tank body more uniform, which promotes the fermentation of the raw materials in various parts of the tank body. After the fermentation is completed, the material is discharged from the tank body through the action of the solenoid valve on the discharge channel 17. The support legs 16 play a role of stable support for the fermentation tank body, so that the fermentation tank body can be used efficiently and reliably, thereby completing a series of tasks.

Claims

1. A fermentation tank for producing bacterial agents, comprising a tank body arranged transversely and an upper cover plate at an upper port of the tank body, characterized in that: The bottom surface of the tank body is a part of a cylinder, and a rotating shaft is arranged at the central axis of the bottom surface. The two ends of the rotating shaft are installed on the two end surfaces of the tank body. At least two groups of stirring rods are fixed on the rotating shaft along its length direction, and each group of stirring rods is arranged along the circumference of the rotating shaft; one end of the rotating shaft passes through the tank body and is connected to the output shaft of the motor; The tank body includes an inner tank body and an outer tank body, an insulation interlayer is arranged between the inner tank body and the outer tank body, a longitudinal tube perpendicular to the rotating shaft and with front and rear end openings is arranged on the upper part of the tank body, the longitudinal tube is communicated with the insulation interlayer through its front and rear end openings, and a temperature control pipeline is arranged in the longitudinal tube and the insulation interlayer.

2. The fermentation tank for producing microbial agent according to claim 1, characterized in that: A medicine delivery pipe is arranged on the upper part of the tank body along the direction of the rotating shaft, and a medicine outlet hole is arranged on the part of the medicine delivery pipe in the inner tank body.

3. The fermentation tank for producing microbial agent according to claim 2, characterized in that: The cross section of the longitudinal tube along the rotating axis direction is V-shaped, and the longitudinal tube is composed of a tube body at the lower part and a tube body cover plate at the upper end of the tube body.

4. The fermentation tank for producing microbial agent according to claim 2, characterized in that: Protruding anti-rotation blocks are arranged at corresponding perforations on the medicine delivery tube and the longitudinal tube.

5. The fermentation tank for producing bacterial agent according to claim 1, 2, 3 or 4, characterized in that: The temperature control pipe is continuously coiled in an S shape along the circumference of the thermal insulation interlayer, and the temperature control pipe in the longitudinal tube is connected between the temperature control pipes on the front and rear sides of the thermal insulation interlayer or on the temperature control pipes on the front and rear sides.

6. The fermentation tank for producing bacterial agent according to claim 1, 2, 3 or 4, characterized in that: The stirring rods on the rotating shaft include a long-rod stirring rod group and a short-rod stirring rod group arranged at intervals, and a stirring block is arranged at the end of each stirring rod. The position of the longitudinal tube corresponds to the position between the short-rod stirring rod group or the long-rod stirring rod group and the long-rod stirring rod group.

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