CN121320063A - A fermentation apparatus for the preparation of vitamin B2 - Google Patents

Abstract

The invention discloses a fermentation device for preparing vitamin B2, which relates to the technical field of vitamin B2 preparation fermentation and comprises a device shell, wherein a fermentation tank is arranged on the inner side of the upper end of the device shell, a tank cover is arranged at the upper end of the fermentation tank, a ventilation mechanism is arranged on the tank cover, a filter cylinder positioned below the fermentation tank is arranged in the device shell, a liquid outlet pipe penetrating through the device shell is connected to the side wall of the filter cylinder, a cylinder cover is arranged above the filter cylinder, two electric telescopic rods are arranged on the inner wall of the device shell, the telescopic ends of the electric telescopic rods are fixed on the side wall of the cylinder cover, and a connecting pipe fixedly connected with the cylinder cover is arranged at the center of the upper end of the cylinder cover in a penetrating manner. The invention can realize convenient switching between the two modes of filtering and cleaning of the flexible filter screen, can improve the filtering efficiency, can realize automatic and efficient cleaning, ensures the good filtering performance, ensures the filtering efficiency and simplifies the cleaning operation.

Description

Fermenting installation is used in vitamin B2 preparation

Technical Field

The invention relates to the technical field of vitamin B2 preparation and fermentation, in particular to a fermentation device for vitamin B2 preparation.

Background

Vitamin B2, also called riboflavin, is one of the essential nutrients for human body, plays a key role in the physiological processes of energy metabolism, cell growth, repair and the like of organisms, and is widely applied to various fields of foods, medicines, feeds and the like. With the increasing demand of vitamin B2 in the market, the improvement of the production efficiency and the product quality thereof becomes the focus of industry attention. The fermentation method is used as a main production method of vitamin B2, and the performance of a fermentation device directly influences the production efficiency and the quality of products. The fermentation liquor obtained in the fermentation production process of vitamin B2 is yellow and milky, and the solid fermentation residues are more and need to be treated in time.

Traditional fermenting installation adopts fixed filtration generally, and filtration mode is single, and at filtration in-process, mainly relies on gravity to make the zymotic fluid pass through the filter screen, and filtration speed is slow, and the switching operation between traditional fermenting installation's the filter screen clearance mode and the filtration mode is complicated, often needs the manual work to dismantle, wash and reinstall the filter screen, not only consumes a large amount of time and manpower, and frequent dismantlement and installation still can increase the risk of equipment trouble, reduction in the life of device.

Disclosure of Invention

The invention aims to solve the defects in the prior art, and provides a fermentation device for preparing vitamin B2.

In order to achieve the above purpose, the present invention adopts the following technical scheme:

The utility model provides a fermenting installation is used in vitamin B2 preparation, includes the device shell, the upper end inboard of device shell is equipped with the fermentation cylinder, the upper end of fermentation cylinder is equipped with the cover, be equipped with ventilation mechanism on the cover, the inside of device shell is equipped with the cartridge filter that is located the fermentation cylinder below, be connected with the drain pipe that runs through out the device shell on the lateral wall of cartridge filter, the top of cartridge filter is equipped with the cover, install two electric telescopic handle on the inner wall of device shell, electric telescopic handle's telescopic end is fixed on the lateral wall of cover, the upper end center of cover runs through be equipped with cover fixed connection's connecting pipe, the lower extreme of fermentation cylinder is equipped with the flexible pipe of being connected with the connecting pipe, the inside of cartridge filter is equipped with the filter mechanism of being connected with the connecting pipe.

As a further improvement of the invention, the ventilation mechanism comprises a rotating pipe vertically penetrating through the center of the upper end of the tank cover, the rotating pipe is rotationally connected with the tank cover, an air outlet pipe positioned on the inner side of the fermentation tank is arranged on the side wall of the rotating pipe, the upper end of the rotating pipe is connected with a ventilation pipe through a rotary joint, the upper end of the tank cover is provided with a first motor, an output shaft of the first motor is fixedly provided with a first gear, a second gear is fixedly sleeved on the side wall of the rotating pipe, and the second gear is meshed with the first gear.

As a further improvement of the invention, the filtering mechanism comprises a sleeve arranged on the inner side of the filter cylinder, a rotating ring is fixed at the upper end of the sleeve, an annular groove is arranged on the side wall of the connecting pipe, the rotating ring is rotationally connected inside the annular groove, a discharging hole communicated with the connecting pipe is penetratingly arranged on the side wall of the sleeve, a flexible filter screen is fixedly sleeved on the side wall of the sleeve, a rotating sleeve is fixedly connected with the outer edge of the flexible filter screen, the rotating sleeve is rotationally sleeved on the upper end of the filter cylinder, a plurality of jetting ports positioned above the flexible filter screen are arranged on the side wall of the sleeve at equal intervals along the circumferential direction of the sleeve, a rotating rod is inserted at the lower end of the sleeve, the lower end of the rotating rod penetrates through the inner bottom wall of the filter cylinder and is rotationally connected with the filter cylinder, a connecting frame positioned below the rotating rod is fixedly arranged at the lower end of the filter cylinder, a second motor is arranged at the lower end of the connecting frame, two sealing rings are fixedly sleeved on the side wall of the rotating rod, a plurality of tension springs are respectively sleeved on the upper ends of the rotating rod, a plurality of tension springs are fixedly arranged on the upper ends of the rectangular top wall of the rectangular sleeve and fixedly connected with the inner side wall of the rectangular sleeve, and fixedly connected with the top wall of the rectangular sleeve in a magnetic groove fixedly sleeved mode, and the upper end of the top wall of the rectangular sleeve is fixedly connected with the top wall of the rectangular sleeve.

As a further improvement of the invention, a mounting ring is fixedly sleeved on the side wall of the fermentation tank, a connecting bolt penetrates through the upper end of the mounting ring, the connecting bolt is in threaded connection with the upper end of the device shell, one side of the tank cover is hinged with the fermentation tank through a hinge, and the other side of the tank cover is provided with a buckling lock connected with the fermentation tank.

As a further improvement of the invention, the bottom of the device shell is connected with three support columns, the lower ends of the three support columns are fixed with the same base, and the bottom of the device shell is connected with a collecting hopper in a threaded manner.

As a further improvement of the invention, four fixing rods are fixed at the bottom of the filter cartridge, and the lower ends of the fixing rods are fixed on the inner bottom wall of the device shell.

As a further improvement of the invention, a plane bearing is arranged at the lower end edge of the cylinder cover, and the plane bearing is positioned above the rotating sleeve.

As a further improvement of the invention, a vertical rod is fixed on the inner bottom wall of the discharge hole, inner crushing teeth are arranged on the side wall of the vertical rod, and outer crushing teeth matched with the inner crushing teeth are arranged on the inner wall of the connecting pipe.

As a further improvement of the invention, a channel is arranged in the rectangular rod, a first through hole and a second through hole which are communicated with the channel are arranged at the upper part of the side wall of the rectangular rod, and the first through hole and the second through hole are respectively positioned at the upper side and the lower side of the sliding plate.

The invention has the beneficial effects that:

The flexible pipe's design can adapt to the lift action of cover, ensures that the zymotic fluid remains the circulation throughout in filtering process, and the control of electric telescopic handle makes the cover can stably drive sleeve and flexible filter screen and reciprocate simultaneously, realizes the filtration of flexible filter screen and the convenient switching of two kinds of modes of clearance, and flexible filter screen can carry out centrifugal filtration under filtration mode, has improved filtration efficiency, and flexible filter screen can carry out centrifugal clearance under clearance mode, realizes automatic high-efficient clearance to guarantee its good filtration performance.

The sleeve is moved upwards by the shrinkage of the electric telescopic rod, the magnetic attraction ring and the sliding plate keep magnetic attraction to be connected and stretch the tension spring, when the sleeve is moved upwards to the limit position, the tension force of the tension spring breaks through the magnetic attraction adsorption force, the sliding plate moves downwards rapidly and ejects gas in the sleeve through the jetting port, the combined design of the magnetic attraction and the spring reset realizes automatic triggering of jetting cleaning, no extra power source is needed, cleaning operation is simplified, meanwhile, the jetting port faces the surface of the flexible filter screen, fermentation residues trapped on the flexible filter screen can be quickly cleared through compressed air jetting, filter screen blocking is avoided, cleaning efficiency is improved, and cleaning effect is further improved.

Drawings

Fig. 1 is a schematic structural diagram of a fermentation device for preparing vitamin B2 according to the present invention;

Fig. 2 is a schematic structural diagram of a fermenter, an electric telescopic rod, an elastic telescopic tube, a filter cartridge, a cartridge cover, a plane bearing, a fixed rod, a connecting frame, a second motor and a liquid outlet pipe of the fermentation device for vitamin B2 preparation;

fig. 3 is a schematic structural diagram of a rotary pipe and an air outlet pipe of a fermentation device for vitamin B2 preparation;

FIG. 4 is a schematic cross-sectional view of the inside of a filter cartridge of a fermentation apparatus for vitamin B2 production according to the present invention;

fig. 5 is a schematic structural view of an elastic telescopic tube, a connecting tube and an annular groove of a fermentation device for preparing vitamin B2;

Fig. 6 is a schematic structural diagram of a sleeve, a swivel, a discharge port and a blowing port of a fermentation device for vitamin B2 preparation;

FIG. 7 is a schematic diagram of the structure of a rotating rod, a sealing ring, a tension spring, a sliding plate and a magnetic attraction ring of the fermentation device for vitamin B2 preparation;

Fig. 8 is a schematic structural diagram of a rectangular rod, a channel, a first port and a second port of a fermentation device for vitamin B2 preparation.

In the figure: 1 device shell, 2 fermentation tank, 3 collar, 4 hinge, 5 cover, 6 first motor, 7 first gear, 8 breather pipe, 9 rotary joint, 10 second gear, 11 rotor, 12 snap lock, 13 connecting bolt, 14 collecting hopper, 15 support column, 16 base, 17 drain pipe, 18 flexible telescopic tube, 19 cartridge, 20 rotor sleeve, 21 plane bearing, 22 cover, 23 dead lever, 24 link, 25 second motor, 26 outlet pipe, 27 connecting tube, 28 outer broken tooth, 29 montant, 30 inner broken tooth, 31 sleeve, 32 bull stick, 33 rectangular bar, 34 rectangular slot, 35 flexible filter screen, 36 annular slot, 37 discharge gate, 38 blowing port, 39 swivel, 40 tension spring, 41 slide, 42 magnetic attraction ring, 43 sealing ring, 44 first port, 45 second port, 46 channel, 47 electric telescopic rod.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.

Referring to fig. 1-8, a fermenting device for preparing vitamin B2 comprises a device shell 1, wherein a fermentation tank 2 is arranged on the inner side of the upper end of the device shell 1, a tank cover 5 is arranged on the upper end of the fermentation tank 2, a ventilation mechanism is arranged on the tank cover 5, a filter cylinder 19 positioned below the fermentation tank 2 is arranged in the device shell 1, four fixing rods 23 are fixed at the bottom of the filter cylinder 19, and the lower ends of the fixing rods 23 are fixed on the inner bottom wall of the device shell 1.

The drain pipe 17 that runs through out device shell 1 is connected with on the lateral wall of cartridge filter 19, be equipped with the valve on the drain pipe 17, the top of cartridge filter 19 is equipped with cover 22, install two electric telescopic handle 47 on the inner wall of device shell 1, electric telescopic handle 47's telescopic end is fixed on the lateral wall of cover 22, cover 22's upper end center runs through be equipped with cover 22 fixed connection's connecting pipe 27, fermentation cylinder 2's lower extreme is equipped with the flexible pipe 18 of being connected with connecting pipe 27, be equipped with the valve on the flexible pipe 18, the inside of cartridge filter 19 is equipped with the filtering mechanism who is connected with connecting pipe 27.

The ventilation mechanism comprises a rotary pipe 11 vertically penetrating through the center of the upper end of the tank cover 5, the rotary pipe 11 is rotationally connected with the tank cover 5, an air outlet pipe 26 located on the inner side of the fermentation tank 2 is arranged on the side wall of the rotary pipe 11, the upper end of the rotary pipe 11 is connected with a ventilation pipe 8 through a rotary joint 9, a first motor 6 is installed at the upper end of the tank cover 5, an output shaft of the first motor 6 is fixedly connected with a first gear 7, a second gear 10 is fixedly sleeved on the side wall of the rotary pipe 11, the second gear 10 is meshed with the first gear 7, air can enter the fermentation tank 2 from the ventilation pipe 8, the rotary joint 9, the rotary pipe 11 and the air outlet pipe 26 to perform oxygen supply fermentation, the first motor 6 is started, the first gear 7 can be driven to rotate, the second gear 10 can be driven to rotate due to the meshing of the first gear 7 and the second gear 10, the rotary pipe 11 is driven to rotate through the second gear 10, the rotary pipe 11 can drive the air outlet pipe 26 to rotate, the fermentation liquid can be stirred by the air outlet pipe 26, and further the fermentation liquid can be supplied with oxygen supply uniformity, and the fermentation effect can be improved.

Referring to fig. 2 and 4, the filtering mechanism includes a sleeve 31 disposed inside a filter cartridge 19, a swivel 39 is fixed at the upper end of the sleeve 31, an annular groove 36 is disposed on a side wall of a connecting tube 27, the swivel 39 is rotatably connected inside the annular groove 36, a discharge hole 37 communicated with the connecting tube 27 is penetratingly disposed on the side wall of the sleeve 31, a vertical rod 29 is fixed on an inner bottom wall of the discharge hole 37, inner crushing teeth 30 are disposed on the side wall of the vertical rod 29, outer crushing teeth 28 matched with the inner crushing teeth 30 are disposed on an inner wall of the connecting tube 27, fermentation liquor in the fermentation tank 2 enters the connecting tube 27 through an elastic telescopic tube 18, when the sleeve 31 rotates, the vertical rod 29 can be driven to rotate, the inner crushing teeth 30 are driven to rotate by the vertical rod 29, lumps in the fermentation liquor can be crushed by the engagement of the inner crushing teeth 30 and the outer crushing teeth 28, so that the fermentation liquor can be fully released, and the yield of the fermentation liquor can be improved when the fermentation liquor is filtered later.

The side wall of the sleeve 31 is fixedly sleeved with a flexible filter screen 35, the outer edge of the flexible filter screen 35 is fixedly connected with a rotating sleeve 20, the rotating sleeve 20 is rotatably sleeved at the upper end of the filter cylinder 19, the edge of the lower end of the cylinder cover 22 is provided with a plane bearing 21, the plane bearing 21 is positioned above the rotating sleeve 20, and the plane bearing 21 is in contact with the rotating sleeve 20, so that the rotating sleeve 20 cannot interfere with the cylinder cover 22 when rotating, and the rotating sleeve 20 can smoothly rotate.

The side wall of the sleeve 31 is provided with a plurality of jetting openings 38 positioned above the flexible filter screen 35, the jetting openings 38 are arranged at equal intervals along the circumferential direction of the sleeve 31, when the sleeve 31 is driven by the sleeve cover 22 to move upwards to the limit position, the flexible filter screen 35 is turned upwards to the upper part of the filter cartridge 19 and is in a shape with the upper part being narrow and the lower part being wide, at the moment, the jetting openings 38 face the surface of the flexible filter screen 35, the surface of the flexible filter screen 35 is jetted through the jetting openings 38, fermentation residues on the flexible filter screen 35 can be easier to leave the surface of the flexible filter screen 35, the rotating rod 32 is inserted at the lower end of the sleeve 31, the lower end of the rotating rod 32 penetrates through the inner bottom wall of the filter cartridge 19 and is connected with the filter cartridge 19 in a rotating way, the connecting frame 24 positioned below the rotating rod 32 is fixed at the lower end of the filter cartridge 19, the lower end of the connecting frame 24 is provided with the second motor 25, and the output shaft of the second motor 25 penetrates through the connecting frame 24 and is fixed at the lower end of the rotating rod 32.

Two sealing rings 43 are embedded on the side wall of the rotating rod 32, the two sealing rings 43 are respectively positioned on the upper side and the lower side of the jetting opening 38, the upper side and the lower side of the jetting opening 38 can be sealed by the sealing rings 43, and then fermentation liquid can not enter from the jetting opening 38 when the fermentation liquid is filtered.

The inside of bull stick 32 is equipped with the rectangle groove 34 with bull stick 32 outside intercommunication, rectangular bar 33 is inserted to the inside in rectangle groove 34, rectangular bar 33's upper end fixed connection is on the interior roof of sleeve 31, can drive bull stick 32 rotation through starting second motor 25, utilize the cooperation of rectangle bar 33 and rectangle groove 34, can drive sleeve 31 rotation, can drive flexible filter screen 35 rotation through sleeve 31, when flexible filter screen 35 is located the cartridge filter 19 inside and be wide in the form of narrow down, fermentation broth in the fermentation cylinder 2 can enter flexible filter screen 35's inboard through flexible pipe 18, connecting pipe 27, discharge gate 37, and utilize flexible filter screen 35 to carry out the filtration to fermentation residue in the fermentation broth and hold, at this moment, sleeve 31 drives flexible filter screen 35 when rotating, can utilize the effect of centrifugal force, make flexible filter screen 35 carry out centrifugal filtration to the fermentation broth, make the filtration rate faster, and then can improve the efficiency of filtering to the fermentation broth.

The upper end fixedly connected with extension spring 40 of bull stick 32, the upper end fixedly connected with slide 41 of extension spring 40, slide 41 sliding sleeve connects in the outside of rectangle pole 33, be fixed with on the interior roof of sleeve 31 with slide 41 complex magnetism inhale the ring 42, when needs clear up flexible filter screen 35, start electric telescopic handle 47 shrink, drive cover 22 and move up, drive sleeve 31 through connecting pipe 27, when sleeve 31 moves up the in-process, because magnetism inhale the ring 42 and slide 41 are in the same place, slide 41, magnetism inhale the ring 42 and move up and tensile extension spring 40 along with sleeve 31 at this moment, when sleeve 31 moves up to extreme limit position, the bull stick 32 moves to the below of injection port 38, make injection port 38 not sheltered from, the pulling force of extension spring 40 breaks through magnetism inhale the ring 42 and the adsorption force of slide 41, slide 41 breaks away from magnetism inhale the ring 42 and moves down in the inside of sleeve 31 fast at this moment under the effect of extension spring 40 pulling force, and then can extrude the inside gas of sleeve 31 fast and spout through injection port 38 to the surface of flexible filter screen 35.

Referring to fig. 4 and 8, a channel 46 is provided in the rectangular rod 33, a first through hole 44 and a second through hole 45 are provided in the upper portion of the side wall of the rectangular rod 33 and are communicated with the channel 46, the first through hole 44 and the second through hole 45 are respectively located at the upper side and the lower side of the slide plate 41, when the sleeve 31 moves up along the rotating rod 32, the space between the slide plate 41 and the rotating rod 32 can be supplied with air by the second through hole 45, further, when the sleeve 31 moves up, the sleeve 31 is not blocked from moving up, the space between the slide plate 41 and the magnetic attraction ring 42 can be supplied with air by the first through hole 44, and when the slide plate 41 moves down, the slide plate 41 is not blocked from moving down.

Referring to fig. 1, a mounting ring 3 is fixedly sleeved on the side wall of a fermentation tank 2, a connecting bolt 13 is arranged at the upper end of the mounting ring 3 in a penetrating manner, the connecting bolt 13 is in threaded connection with the upper end of a device shell 1, one side of a tank cover 5 is hinged with the fermentation tank 2 through a hinge 4, a snap lock 12 connected with the fermentation tank 2 is arranged on the other side of the tank cover 5, and the tank cover 5 can be conveniently opened and closed by the hinge 4 and the snap lock 12.

Referring to fig. 1, the bottom of the device case 1 is connected with three support columns 15, the lower ends of the three support columns 15 are fixed with the same base 16, the bottom of the device case 1 is connected with a collecting hopper 14 in a screwed manner, and fermentation residues cleaned on a flexible filter screen 35 can be collected in a concentrated manner by utilizing the collecting hopper 14.

When the fermentation tank 2 is in operation, the fermentation tank 2 is fixed on the inner side of the upper end of the device shell 1 through the mounting ring 3 and the connecting bolt 13, the tank cover 5 is hinged with the fermentation tank 2 through the hinge 4, the lower end of the fermentation tank 2 is connected with the connecting pipe 27 through the elastic telescopic pipe 18, raw materials to be fermented are added into the fermentation tank 2, the tank cover 5 is closed and connected with the fermentation tank 2 through the snap lock 12, the first motor 6 is started to drive the first gear 7 to rotate in the fermentation process, the first gear 7 is meshed with the second gear 10 to drive the rotary pipe 11 to rotate, the air outlet pipe 26 on the side wall of the rotary pipe 11 rotates along with the rotary pipe, air enters the fermentation tank 2 through the vent pipe 8, the rotary joint 9, the rotary pipe 11 and the air outlet pipe 26 to provide oxygen for fermentation, and meanwhile the rotary air outlet pipe 26 stirs fermentation liquid, so that the oxygen supply uniformity is improved, and fermentation is carried out in the fermentation tank 2;

After fermentation is completed, fermentation liquor in the fermentation tank 2 enters the connecting pipe 27 through the elastic telescopic pipe 18 and then flows into the inner side of the flexible filter screen 35 through the discharge port 37, the second motor 25 is started to drive the rotating rod 32 to rotate, the rectangular groove 34 on the side wall of the rotating rod 32 is matched with the rectangular rod 33 to drive the sleeve 31 to rotate, the sleeve 31 drives the flexible filter screen 35 to rotate so as to centrifugally filter the fermentation liquor, the filtered vitamin mother liquor falls into the bottom of the filter cartridge 19 and is discharged through the liquid outlet pipe 17, and fermentation residues are trapped by the flexible filter screen 35;

When residues on the surface of the flexible filter screen 35 need to be cleaned, the electric telescopic rod 47 is started to shrink to drive the cylinder cover 22 to move upwards, the cylinder cover 22 drives the sleeve 31 to move upwards through the connecting pipe 27, the magnetic attraction ring 42 and the sliding plate 41 are kept in magnetic attraction connection in the upward moving process of the sleeve 31, the tension spring 40 is stretched, when the sleeve 31 moves upwards to a limit position, the rotating rod 32 moves below the jetting opening 38 to enable the jetting opening 38 not to be blocked, the tension force of the tension spring 40 breaks through the adsorption force of the magnetic attraction ring 42 and the sliding plate 41 to enable the sliding plate 41 to move downwards rapidly and jet gas in the sleeve 31 to jet the surface of the flexible filter screen 35 through the jetting opening 38, meanwhile, the flexible filter screen 35 is turned upwards to be in a shape with a narrow upper part and a wide lower part after the sleeve 31 moves upwards, fermentation residues on the flexible filter screen 35 are easier to leave the surface of the flexible filter screen 35, meanwhile, the rotation of the flexible filter screen 35 is utilized, the fermentation residues on the surface of the flexible filter screen 35 are thrown away from the flexible filter screen 35 by utilizing the centrifugal force, automatic cleaning of the flexible filter screen 35 is realized, the fermentation residues under the device shell 1 can fall into the bottom of the device shell 1, and the fermentation residues under the flexible filter screen 35 can be collected by utilizing the collecting hopper 14 to clean up fermentation residues under the flexible filter screen 35;

After the flexible filter screen 35 is cleaned, the electric telescopic rod 47 is started to extend to drive the cylinder cover 22 to move downwards, the cylinder cover 22 drives the sleeve 31 to move downwards through the connecting pipe 27, the sliding plate 41 is magnetically connected with the magnetic ring 42 again under the action of the magnetic ring 42, and the flexible filter screen 35 is restored to be in a shape with wide upper part and narrow lower part to continue centrifugal filtration.

The present invention is not limited to the above-mentioned embodiments, and any person skilled in the art, based on the technical solution of the present invention and the inventive concept thereof, can be replaced or changed within the scope of the present invention.

Claims (9)

1. The utility model provides a fermenting installation for vitamin B2 preparation, includes device shell (1), its characterized in that, the upper end inboard of device shell (1) is equipped with fermentation cylinder (2), the upper end of fermentation cylinder (2) is equipped with cover (5), be equipped with ventilation mechanism on cover (5), the inside of device shell (1) is equipped with cartridge filter (19) that are located fermentation cylinder (2) below, be connected with drain pipe (17) that run through out device shell (1) on the lateral wall of cartridge filter (19), the top of cartridge filter (19) is equipped with cover (22), install two electric telescopic handle (47) on the inner wall of device shell (1), the telescopic end of electric telescopic handle (47) is fixed on the lateral wall of cover (22), the upper end center of cover (22) runs through be equipped with cover (22) fixed connection's connecting pipe (27), the lower extreme of fermentation cylinder (2) is equipped with flexible extension pipe (18) that are connected with cover (27), the inside of cartridge filter (19) is equipped with and is connected with filter mechanism with connecting pipe (27).

2. The fermentation device for vitamin B2 preparation according to claim 1, wherein the ventilation mechanism comprises a rotating pipe (11) vertically penetrating through the center of the upper end of the tank cover (5), the rotating pipe (11) is rotationally connected with the tank cover (5), an air outlet pipe (26) positioned on the inner side of the fermentation tank (2) is arranged on the side wall of the rotating pipe (11), the upper end of the rotating pipe (11) is connected with a ventilation pipe (8) through a rotary joint (9), a first motor (6) is mounted at the upper end of the tank cover (5), a first gear (7) is fixed on an output shaft of the first motor (6), a second gear (10) is fixedly sleeved on the side wall of the rotating pipe (11), and the second gear (10) is meshed with the first gear (7).

3. The fermentation device for vitamin B2 production according to claim 1, wherein the filtering mechanism comprises a sleeve (31) arranged on the inner side of the filter cartridge (19), a swivel (39) is fixed at the upper end of the sleeve (31), an annular groove (36) is arranged on the side wall of the connecting pipe (27), the swivel (39) is rotationally connected in the annular groove (36), a discharge hole (37) communicated with the connecting pipe (27) is penetratingly arranged on the side wall of the sleeve (31), a flexible filter screen (35) is fixedly sleeved on the side wall of the sleeve (31), a rotating sleeve (20) is fixedly connected to the outer edge of the flexible filter screen (35), the rotating sleeve (20) is rotationally sleeved on the upper end of the filter cartridge (19), a plurality of blowing openings (38) positioned above the flexible filter screen (35) are arranged on the side wall of the sleeve (31), a plurality of blowing openings (38) are arranged at equal intervals along the circumference of the sleeve (31), a rotating rod (32) is inserted into the lower end of the sleeve (31), the lower end of the rotating rod (32) penetrates through the lower end of the motor (32) and is fixedly connected with a second filter cartridge (24) which is fixedly connected with the lower end (24) of the filter cartridge (19), the output shaft of second motor (25) runs through link (24) and fixes the lower extreme at bull stick (32), inlay on the lateral wall of bull stick (32) and be equipped with two sealing washer (43), two sealing washer (43) are located the upper and lower both sides of jetting mouth (38) respectively, the inside of bull stick (32) is equipped with rectangular channel (34) with bull stick (32) outside intercommunication, rectangular channel (34)'s inside cartridge has rectangle pole (33), the upper end fixed connection of rectangle pole (33) is on the interior roof of sleeve (31), the upper end fixed connection of bull stick (32) extension spring (40), the upper end fixed connection of extension spring (40) slide (41), slide (41) slide the outside of cup jointing in rectangle pole (33), be fixed with on the interior roof of sleeve (31) with slide (41) complex magnetism inhale ring (42).

4. The fermentation device for vitamin B2 preparation according to claim 1, wherein a mounting ring (3) is fixedly sleeved on the side wall of the fermentation tank (2), a connecting bolt (13) is arranged at the upper end of the mounting ring (3) in a penetrating manner, the connecting bolt (13) is in threaded connection with the upper end of the device shell (1), one side of the tank cover (5) is hinged with the fermentation tank (2) through a hinge (4), and a snap lock (12) connected with the fermentation tank (2) is arranged on the other side of the tank cover (5).

5. The fermentation device for vitamin B2 production according to claim 1, wherein the bottom of the device shell (1) is connected with three support columns (15), the same base (16) is fixed at the lower ends of the three support columns (15), and the bottom of the device shell (1) is connected with a collecting hopper (14) in a screwed manner.

6. The fermentation device for vitamin B2 production according to claim 1, wherein four fixing rods (23) are fixed to the bottom of the filter cartridge (19), and the lower ends of the fixing rods (23) are fixed to the inner bottom wall of the device case (1).

7. A fermentation device for vitamin B2 production according to claim 3, wherein a planar bearing (21) is mounted on the lower end edge of the cylinder cover (22), and the planar bearing (21) is located above the rotating sleeve (20).

8. A fermentation device for vitamin B2 production according to claim 3, wherein a vertical rod (29) is fixed on the inner bottom wall of the discharge port (37), inner crushing teeth (30) are arranged on the side wall of the vertical rod (29), and outer crushing teeth (28) matched with the inner crushing teeth (30) are arranged on the inner wall of the connecting pipe (27).

9. A fermentation device for preparing vitamin B2 according to claim 3, wherein a channel (46) is provided in the rectangular rod (33), a first port (44) and a second port (45) which are communicated with the channel (46) are provided at the upper part of the side wall of the rectangular rod (33), and the first port (44) and the second port (45) are respectively located at the upper side and the lower side of the slide plate (41).