1. A stirring mechanism in a microbial fermentation tank comprises a tank body (10), wherein the tank body (10) is internally divided into a stirring cavity (12) and an environment adjusting cavity (13) by a partition plate (11) from top to bottom, and is characterized in that a first inoculum adding part (40) is arranged on the outer wall of the stirring cavity (12), and a second inoculum adding part (41) is arranged at the bottom of the tank body (10);

a circulating stirring device (20) is arranged in the tank body (10), the circulating stirring device (20) comprises a lifting part (21) arranged at the top of the tank body (10), a driving motor (22) arranged at an execution end of the lifting part (21), a stirring shaft tube (23) arranged at the execution end of the driving motor (22) and sequentially penetrating through the stirring cavity (12) and the partition plate (11) and extending into the environment adjusting cavity (13), a material guide part (24) arranged at the bottom of the partition plate (11), a material scraping part (25) arranged at the top, and a backflow part (26) arranged at the bottom of the environment adjusting cavity (13) and extending into the stirring shaft tube (23);

be equipped with humidity control part (30) and oxygen content adjusting part (31) on environmental conditioning chamber (13) outer wall, humidity control part (30) check end extends to environmental conditioning chamber (13) in, oxygen content adjusting part (31) execution end cover is located the guide part (24) outside, when oxygen content adjusting part (31) check environmental conditioning chamber (13) in oxygen concentration not reach the default, through oxygen content adjusting part (31) to carry oxygen in the guide part (24).

2. The stirring mechanism inside a microbial fermentation tank is characterized in that the lifting component (21) comprises a plurality of driving cylinders (211) arranged on the top of the tank body (10) and a lifting plate (212) arranged at the execution end of the driving cylinders (211), the lifting plate (212) is connected with a driving motor (22), and the execution end of the driving motor (22) penetrates through the lifting plate (212) and is connected with one end of a stirring shaft tube (23).

3. The internal stirring mechanism of the microbial fermentation tank as claimed in claim 1, wherein the material guiding component (24) comprises a material guiding pipe (241) penetrating and connecting the bottom of the partition plate (11), a telescopic cylinder (242) arranged on the inner wall of the stirring cavity (12), a sealing plate (243) arranged at the execution end of the telescopic cylinder (242) and used for sealing the top of the material guiding pipe (241), a stepping motor (244) arranged at the bottom of the tank body (10), and a first packing auger (245) arranged at the execution end of the stepping motor (244) and extending into the material guiding pipe (241).

4. The stirring mechanism inside a microbial fermentation tank as claimed in claim 1, wherein the scraping member (25) comprises a driving concave block (251) penetrating through the stirring shaft tube (23) and rotatably connected to the upper surface of the partition plate (11), a scraping rod (252) disposed on the side wall of the driving concave block (251), and a driving convex block (253) disposed on the side wall of the stirring shaft tube (23), wherein when scraping, the driving convex block (253) contacts the driving concave block (251) after the stirring shaft tube (23) moves down and drives the driving concave block (251) and the scraping rod (252) to rotate.

5. The stirring mechanism in the microbial fermentation tank as claimed in claim 1, wherein the reflux component (26) comprises a reflux pipe (261) arranged at the bottom of the inner wall of the environment adjusting cavity (13), the reflux pipe (261) is sleeved with the inner wall of the stirring shaft tube (23), a transmission motor (262) arranged at the bottom of the tank body (10), and a second packing auger (263) arranged at the output end of the transmission motor (262) and extending into the reflux pipe (261).

6. The stirring mechanism inside a microbial fermentation tank as claimed in claim 1, wherein a backflow cavity (231) is arranged inside the stirring shaft tube (23), a plurality of backflow discharging openings (232) are arranged at the top of the backflow cavity (231), an extension platform (233) connected with the outer wall of the stirring shaft tube (23) is arranged at the bottom of the backflow discharging openings (232), and a plurality of stirring rods (234) are arranged on the outer wall of the stirring shaft tube (23) and located inside the stirring cavity (12) and the environment adjusting cavity (13).

7. The internal stirring mechanism of the microbial fermentation tank is characterized in that the first inoculum adding part (40) comprises an annular adding pipe (401) arranged on the inner wall of the stirring cavity (12) and a liquid adding pipe (402) with one end communicated with the side wall of the annular adding pipe (401) and the other end extending to the outside of the tank body (10).

8. The internal stirring mechanism of a microbial fermentation tank is characterized in that the second inoculum adding part (41) comprises a liquid inlet ring (411) connected with the bottom of the tank body (10) and a plurality of adding spray heads (412) which are connected with the upper surface of the liquid inlet ring (411) in a penetrating way and extend to the inside of the tank body (10).

9. The internal stirring mechanism of the microbial fermentation tank is characterized in that the humidity adjusting component (30) comprises a humidity sensor (301) arranged on the inner walls of the stirring cavity (12) and the environment adjusting cavity (13), an air drying box (302) arranged on the outer wall of the environment adjusting cavity (13), and a plurality of heating pipes (303) arranged in the air drying box (302).

10. The internal stirring mechanism of a microbial fermentation tank as claimed in claim 3, wherein the oxygen content adjusting component (31) comprises an oxygen concentration sensor (311) disposed on the inner wall of the stirring chamber (12) and the inner wall of the environment adjusting chamber (13), a molecular sieve adsorber (312) disposed on the outer wall of the environment adjusting chamber (13), and a spiral pipe (313) disposed at the oxygen discharge port of the molecular sieve adsorber (312), wherein the spiral pipe (313) is sleeved on the outer wall of the material guiding pipe (241) and is connected to the material guiding pipe (241) in a penetrating manner.

Background

Microbial fermentation refers to a process of converting raw materials into products required by human beings through a specific metabolic pathway by using microorganisms under appropriate conditions.

According to the stirring device for the microorganism fermentation tank provided by the patent document with the application number of CN201721217053.4, the modified product comprises a stirring rod, a stirring paddle and a motor, wherein the motor is installed at the upper part of the stirring rod, and an air inlet channel and a water inlet channel are arranged inside the stirring rod; the stirring paddle is divided into a first stirring paddle and a second stirring paddle, the first stirring paddle is arranged on the stirring rod and is communicated with the air inlet channel in the stirring rod, and the second stirring paddle is arranged on the stirring rod and is communicated with the water inlet channel in the stirring rod; the first stirring paddle is provided with an aeration hole, and the second stirring paddle is provided with a water outlet hole; and a check valve is also arranged in the air inlet end of the air inlet channel, and a check valve is also arranged in the water inlet end of the water inlet channel. The product is provided with the aeration holes and the water outlet holes on the stirring paddle, so that the dissolved oxygen of the fermentation tank can be effectively improved, and the interior of the tank body can be cleaned conveniently.

The product in the above patent not only can effectively improve the dissolved oxygen volume of fermentation cylinder, still can be convenient for the internal cleanness of jar, nevertheless is not convenient for control the oxygen content and the water content of substrate when stirring, and the contact of the lot of between substrate and the inoculum of being not convenient for mixes.

Disclosure of Invention

The invention mainly provides an internal stirring mechanism of a microbial fermentation tank, which is used for solving the technical problems in the background technology.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a stirring mechanism in a microbial fermentation tank comprises a tank body, wherein the tank body is divided into a stirring cavity and an environment adjusting cavity by a partition plate from top to bottom, a first inoculum adding part is arranged on the outer wall of the stirring cavity, and a second inoculum adding part is arranged at the bottom of the tank body;

the circulating stirring device is arranged in the tank body and comprises a lifting part arranged at the top of the tank body, a driving motor arranged at an execution end of the lifting part, a stirring shaft tube arranged at the execution end of the driving motor and sequentially penetrating through the stirring cavity and the partition plate and extending into the environment adjusting cavity, a material guiding part arranged at the bottom of the partition plate, a material scraping part arranged at the top of the partition plate and a backflow part arranged at the bottom of the environment adjusting cavity and extending into the stirring shaft tube;

the environment adjusting cavity is characterized in that a humidity adjusting part and an oxygen content adjusting part are arranged on the outer wall of the environment adjusting cavity, the checking end of the humidity adjusting part extends into the environment adjusting cavity, the execution end of the oxygen content adjusting part is sleeved outside the material guiding part, and when the oxygen content adjusting part checks that the oxygen concentration in the environment adjusting cavity does not reach a preset value, oxygen is conveyed into the material guiding part through the oxygen content adjusting part.

Preferably, the lifting component is including locating a plurality of driving cylinders in jar body top, and locate the lifter plate of driving cylinder execution end, connect driving motor on the lifter plate, driving motor execution end runs through the lifter plate and connects stirring central siphon one end. In the preferred embodiment, the stirring shaft tube is stably lifted and lowered by the lifting component.

Preferably, the guide part includes the passage of link up connection baffle bottom, locates the telescoping cylinder of stirring intracavity wall locates telescoping cylinder execution end just is used for the closing plate at sealed passage top, locates the step motor of jar body bottom to and locate step motor execution end just extends to the inside first auger of passage. In the preferred embodiment, the guiding component is used for facilitating the substrate in the stirring cavity to be guided into the environment adjusting cavity.

Preferably, scrape the material part including wearing to establish the concave piece of drive that stirring central siphon just rotated the connection baffle upper surface, locate the material pole of scraping of the concave piece lateral wall of drive, and locate the drive lug of stirring central siphon lateral wall, when scraping the material, the drive lug contacts the concave piece of drive and drives the concave piece of drive and scrape the rotation of material pole after the stirring central siphon moves down. In the preferred embodiment, the scraping component is used for facilitating the scraping of the residual substrate on the partition plate into the material guiding component.

Preferably, the backward flow part is including locating the back flow of environment regulation intracavity wall bottom, the back flow cup joints the (mixing) shaft inside pipe wall, locates the transmission motor of jar body bottom to and locate the second auger that the transmission motor output just extended to the back flow in. In the preferred embodiment, the transport of the substrate through the return tube and the stirring shaft tube to the stirring chamber is facilitated by the return member.

Preferably, the inside backward flow chamber that is equipped with of (mixing) shaft pipe, the backward flow chamber top is equipped with a plurality of backward flow discharge openings, backward flow discharge opening bottom is equipped with the extension platform of connecting (mixing) shaft pipe outer wall, (mixing) shaft pipe outer wall is equipped with a plurality of stirring rods that are located stirring chamber and environmental conditioning intracavity. In the preferred embodiment, the dispensing of the reflowed substrate is facilitated by an extension stage, and the agitation of the substrate is accomplished by a stir bar.

Preferably, the first inoculum adding part comprises an annular adding pipe arranged on the inner wall of the stirring cavity and a liquid adding pipe with one end communicated with the side wall of the annular adding pipe and the other end extending to the outside of the tank body. In the preferred embodiment, the addition of inoculum to the substrate and to the substrate that is returned during the circulation agitation is facilitated by the first inoculum addition means.

Preferably, the second inoculum adding part comprises a liquid inlet ring connected with the bottom of the tank body and a plurality of adding spray heads which are communicated with the upper surface of the liquid inlet ring and extend into the tank body. In the preferred embodiment, the addition of inoculum to the substrate passing through the return means is facilitated by a second inoculum addition means.

Preferably, the humidity adjusting part comprises a humidity sensor arranged on the inner wall of the stirring cavity and the inner wall of the environment adjusting cavity, an air drying box arranged on the outer wall of the environment adjusting cavity, and a plurality of heating pipes arranged in the air drying box. In the preferred embodiment, the moisture regulating member can regulate the moisture of the substrate by means of dry air.

Preferably, the oxygen content adjusting part comprises an oxygen concentration sensor arranged on the inner wall of the stirring cavity and the inner wall of the environment adjusting cavity, a molecular sieve adsorber arranged on the outer wall of the environment adjusting cavity, and a spiral pipe arranged at an oxygen discharge port of the molecular sieve adsorber, wherein the spiral pipe is sleeved on the outer wall of the material guide pipe and is in through connection with the material guide pipe. In the preferred embodiment, the oxygen content adjusting member can adjust the oxygen content of the substrate.

Compared with the prior art, the invention has the beneficial effects that:

the product can circularly stir the substrate, a plurality of inoculum adding points are arranged during the circular stirring, so that the inoculum can be uniformly added and mixed, and the substrate can be subjected to oxygen content and humidity regulation in the circular stirring process through the humidity regulating component and the oxygen content regulating component;

realize the stable lift of stirring central siphon through the lifting unit, be convenient for through the guide part with the leading-in environment control chamber of the substrate of stirring intracavity, be convenient for scrape the residual substrate on the baffle into the guide part through scraping the material part, be convenient for transmit the substrate to the stirring chamber through back flow and stirring central siphon through the backward flow part, add the part through first inoculum and be convenient for add the inoculum to the substrate that flows back when substrate and circulation stirring, add the part through the second inoculum and be convenient for add the inoculum to in the substrate through the backward flow part, humidity control part accessible dry air can adjust the humidity of substrate, oxygen content control part can adjust the oxygen content of substrate.

The present invention will be explained in detail below with reference to the drawings and specific embodiments.

Drawings

FIG. 1 is an isometric view of the overall construction of the present invention;

FIG. 2 is an exploded view of the overall structure of the present invention;

FIG. 3 is an isometric view of the construction of the circulation agitator apparatus of the present invention;

FIG. 4 is an exploded view of the internal structure of the can body of the present invention;

FIG. 5 is an isometric view of the material guiding member of the present invention;

FIG. 6 is a top view of the overall structure of the present invention;

FIG. 7 is a sectional view showing the internal structure of the can body according to the present invention;

fig. 8 is a sectional view of the overall structure of the present invention.

Description of the drawings: 10. a tank body; 11. a partition plate; 12. a stirring chamber; 13. an environmental conditioning chamber; 20. a circulating stirring device; 21. a lifting member; 211. a drive cylinder; 212. a lifting plate; 22. a drive motor; 23. a stirring shaft tube; 231. a reflux cavity; 232. a return discharge port; 233. a delay station; 234. a stirring rod; 24. a material guiding part; 241. a material guide pipe; 242. a telescopic cylinder; 243. a sealing plate; 244. a stepping motor; 245. a first auger; 25. a scraping component; 251. driving the concave block; 252. a scraping rod; 253. a drive lug; 26. a reflow member; 261. a return pipe; 262. a drive motor; 263. a second auger; 30. a humidity adjustment component; 301. a humidity sensor; 302. an air drying oven; 303. heating a tube; 31. an oxygen content adjusting member; 311. an oxygen concentration sensor; 312. a molecular sieve adsorber; 313. a spiral tube; 40. a first inoculum addition component; 401. an annular addition pipe; 402. a liquid adding pipe; 41. a second inoculum addition component; 411. a liquid inlet ring; 412. a spray head is added.

Detailed Description

In order to facilitate an understanding of the invention, the invention will now be described more fully hereinafter with reference to the accompanying drawings, in which several embodiments of the invention are shown, but which may be embodied in different forms and not limited to the embodiments described herein, but which are provided so as to provide a more thorough and complete disclosure of the invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, as the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the knowledge of the terms used herein in the specification of the present invention is for the purpose of describing particular embodiments and is not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Please refer to fig. 1, 3, 4, and 7, in a preferred embodiment of the present invention, an internal stirring mechanism of a microbial fermentation tank includes a tank body 10, the tank body 10 is divided into a stirring chamber 12 and an environment adjusting chamber 13 by a partition plate 11 from top to bottom, a first inoculum adding component 40 is disposed on an outer wall of the stirring chamber 12, and a second inoculum adding component 41 is disposed at a bottom of the tank body 10; the first inoculum adding component 40 comprises an annular adding pipe 401 arranged on the inner wall of the stirring cavity 12 and a liquid adding pipe 402 with one end communicated with the side wall of the annular adding pipe 401 and the other end extending to the outside of the tank body 10, and the second inoculum adding component 41 comprises a liquid inlet ring 411 connected with the bottom of the tank body 10 and a plurality of adding nozzles 412 communicated with the upper surface of the liquid inlet ring 411 and extending to the inside of the tank body 10.

It should be noted that, in this embodiment, the inoculum can be introduced into the plurality of liquid adding tubes 402 at the same time, and the inoculum enters the tank 10 through the liquid adding tubes 402 and the annular adding tube 401;

further, the inoculum can be introduced into the liquid inlet ring 411, and the inoculum enters the tank 10 through the addition nozzle 412.

Please refer to fig. 2, 6, and 8, in another preferred embodiment of the present invention, a humidity adjusting component 30 and an oxygen content adjusting component 31 are disposed on an outer wall of the environment adjusting chamber 13, an inspection end of the humidity adjusting component 30 extends into the environment adjusting chamber 13, an execution end of the oxygen content adjusting component 31 is sleeved outside the material guiding component 24, when the oxygen content adjusting component 31 inspects that the oxygen concentration in the environment adjusting chamber 13 does not reach a predetermined value, oxygen is delivered into the material guiding component 24 through the oxygen content adjusting component 31, the humidity adjusting component 30 includes a humidity sensor 301 disposed on inner walls of the stirring chamber 12 and the environment adjusting chamber 13, an air drying box 302 disposed on an outer wall of the environment adjusting chamber 13, and a plurality of heating pipes 303 disposed in the air drying box 302, the oxygen content adjusting component 31 includes an oxygen concentration sensor 311 disposed on inner walls of the stirring chamber 12 and the environment adjusting chamber 13, the molecular sieve adsorber 312 is arranged on the outer wall of the environment adjusting cavity 13, and the spiral pipe 313 is arranged at an oxygen discharge port of the molecular sieve adsorber 312, and the spiral pipe 313 is sleeved on the outer wall of the material guide pipe 241 and is in through connection with the material guide pipe 241.

It should be noted that, in this embodiment, during humidity adjustment, the humidity sensor 301 transmits humidity data in the stirring cavity 12 to the PLC controller, and when the humidity data is greater than a set value, the PLC controller turns on the air inlet end fans of the heating pipe 303 and the air drying box 302, and dry air enters the environment adjusting cavity 13 until the humidity data measured by the humidity sensor 301 in the environment adjusting cavity 13 and the stirring cavity 12 are both within the set value;

when the oxygen content is regulated, the oxygen concentration sensor 311 transmits the oxygen concentration data in the stirring cavity 12 to the PLC controller, when the oxygen concentration data is larger than a set value, the PLC controller starts the molecular sieve adsorber 312, the molecular sieve adsorber 312 discharges oxygen into the spiral pipe 313, the oxygen passes through the spiral pipe 313 and then is mixed with the substrate passing through the material guide pipe 241 until the oxygen concentration data measured by the oxygen concentration sensor 311 in the environment regulating cavity 13 and the stirring cavity 12 are within a set range.

Please refer to fig. 3, 4, 5, 7, and 8, in another preferred embodiment of the present invention, a circulation stirring apparatus 20 is disposed in the tank 10, the circulation stirring apparatus 20 includes a lifting member 21 disposed at the top of the tank 10, a driving motor 22 disposed at the executing end of the lifting member 21, a stirring shaft tube 23 disposed at the executing end of the driving motor 22 and sequentially passing through the stirring chamber 12, the partition 11 and extending into the environment adjusting chamber 13, a material guiding member 24 disposed at the bottom of the partition 11, a material scraping member 25 disposed at the top, and a backflow member 26 disposed at the bottom of the environment adjusting chamber 13 and extending into the stirring shaft tube 23, the lifting member 21 includes a plurality of driving cylinders 211 disposed at the top of the tank 10, and a lifting plate 212 disposed at the executing end of the driving cylinders 211, the lifting plate 212 is connected to the driving motor 22, the executing end of the driving motor 22 passes through the lifting plate 212 and is connected to one end of the stirring shaft tube 23, the material guiding component 24 includes a material guiding pipe 241 penetrating the bottom of the partition plate 11, an expansion cylinder 242 disposed on the inner wall of the stirring chamber 12, a sealing plate 243 disposed at the execution end of the expansion cylinder 242 and used for sealing the top of the material guiding pipe 241, a stepping motor 244 disposed at the bottom of the tank 10, and a first auger 245 disposed at the execution end of the stepping motor 244 and extending into the material guiding pipe 241, the material scraping component 25 includes a driving concave block 251 penetrating the stirring shaft pipe 23 and rotatably connected to the upper surface of the partition plate 11, a material scraping rod 252 disposed on the side wall of the driving concave block 251, and a driving convex block 253 disposed on the side wall of the stirring shaft pipe 23, when scraping, the driving convex block 253 contacts the driving concave block 251 and drives the driving concave block 251 and the material scraping rod 252 to rotate after the stirring shaft pipe 23 moves down, the backflow component 26 includes a backflow pipe 261 disposed at the bottom of the inner wall of the environment adjusting chamber 13, the back flow 261 cup joints the 23 inner walls of stirring central siphon, locates the driving motor 262 of the jar body 10 bottom, and locate the second auger 263 in the back flow 261 is just extended to the driving motor 262 output, stirring central siphon 23 is inside to be equipped with backward flow chamber 231, backward flow chamber 231 top is equipped with a plurality of backward flow discharge openings 232, backward flow discharge opening 232 bottom is equipped with the extension platform 233 of connecting stirring central siphon 23 outer wall, stirring central siphon 23 outer wall is equipped with a plurality of stirring rods 234 that are located stirring chamber 12 and environment control chamber 13.

It should be noted that, in this embodiment, the substrate can be added through the feeding pipe at the top of the tank 10, the driving motor 22 and the lifting member 21 are started, the stirring shaft tube 23 can vertically lift and move while rotating and stirring, so as to increase the stirring effect, the substrate in the stirring chamber 12 sequentially passes through the scraping member 25, the material guiding member 24, the backflow member 26 and the stirring shaft tube 23 and then returns to the stirring chamber 12 to complete the circulation, and the humidity and oxygen content of the substrate can be changed during the circulation stirring process;

further, during lifting, the output end of the driving cylinder 211 stretches to drive the lifting plate 212 to lift, and the lifting plate 212 drives the driving motor 22 and the stirring shaft tube 23 to lift;

further, when the substrate passes through the scraping component 25, the driving lug 253 contacts the driving concave block 251 after the stirring shaft tube 23 moves downwards and drives the driving concave block 251 and the scraping rod 252 to rotate, and the scraping rod 252 scrapes the substrate to the material guiding component 24;

further, when the substrate passes through the material guiding component 24, the telescopic cylinder 242 is opened, the telescopic cylinder 242 drives the sealing plate 243 to move upwards, the material guiding starts, at this time, the stepping motor 244 drives the first auger 245 to rotate, and the substrate enters the environment adjusting cavity 13 through the material guiding pipe 241;

further, when the substrate passes through the reflux part 26, the transmission motor 262 drives the second auger 263 to rotate, so that the bottom moves upwards in the reflux pipe 261, and the inoculum entering through the second inoculum adding part 41 is mixed into the substrate;

further, when the substrate passes through the agitation shaft tube 23, the substrate is discharged out of the agitation shaft tube 23 through the return chamber 231 and the return discharge opening 232 and spread on the spreading table 233, and the inoculum introduced through the first inoculum adding unit 40 is mixed into the substrate.

The specific process of the invention is as follows:

the model of the PLC controller is 'DVP 40ES 200T', the model of the humidity sensor 301 is 'TKSC-2', and the model of the oxygen concentration sensor 311 is 'SGA-700-O2'.

The substrate can be added through the feeding pipe at the top of the tank body 10, the driving motor 22 and the lifting component 21 are started, the stirring shaft pipe 23 can vertically lift and move while rotating and stirring, the stirring effect is improved, the substrate in the stirring cavity 12 returns to the stirring cavity 12 after sequentially passing through the scraping component 25, the material guiding component 24, the backflow component 26 and the stirring shaft pipe 23, the circulation is completed, and the humidity and the oxygen content of the substrate can be changed in the circulating and stirring process;

when the stirring shaft tube is lifted, the output end of the driving cylinder 211 stretches to drive the lifting plate 212 to lift, and the lifting plate 212 drives the driving motor 22 and the stirring shaft tube 23 to lift;

when the substrate passes through the scraping component 25, the driving lug 253 contacts the driving concave block 251 after the stirring shaft tube 23 moves downwards and drives the driving concave block 251 and the scraping rod 252 to rotate, and the scraping rod 252 scrapes the substrate to the material guiding component 24;

when the substrate passes through the material guiding component 24, the telescopic cylinder 242 is opened, the telescopic cylinder 242 drives the sealing plate 243 to move upwards, the material guiding starts, at the moment, the stepping motor 244 drives the first auger 245 to rotate, and the substrate enters the environment adjusting cavity 13 through the material guiding pipe 241;

when the substrate passes through the reflux component 26, the transmission motor 262 drives the second auger 263 to rotate, so that the bottom moves upwards in the reflux pipe 261, and the inoculum entering through the second inoculum adding component 41 is mixed into the substrate;

when the substrate passes through the stirring shaft tube 23, the substrate passes through the reflux cavity 231 and the reflux discharge opening 232, is discharged out of the stirring shaft tube 23 and is spread on the spreading table 233, and then the inoculum entering through the first inoculum adding part 40 is mixed into the substrate;

the inocula can be simultaneously introduced into the liquid adding pipes 402 and enter the tank body 10 after passing through the liquid adding pipes 402 and the annular adding pipe 401;

the inoculum can be introduced into the liquid inlet ring 411 and enters the tank 10 through the adding nozzle 412;

when the humidity is regulated, the humidity sensor 301 transmits humidity data in the stirring cavity 12 to the PLC, when the humidity data is larger than a set value, the PLC starts a fan at the air inlet end of the heating pipe 303 and the air drying box 302, and dry air enters the environment regulating cavity 13 until the humidity data measured by the humidity sensor 301 in the environment regulating cavity 13 and the stirring cavity 12 are within the set value;

when the oxygen content is regulated, the oxygen concentration sensor 311 transmits the oxygen concentration data in the stirring cavity 12 to the PLC controller, when the oxygen concentration data is larger than a set value, the PLC controller starts the molecular sieve adsorber 312, the molecular sieve adsorber 312 discharges oxygen into the spiral pipe 313, the oxygen passes through the spiral pipe 313 and then is mixed with the substrate passing through the material guide pipe 241 until the oxygen concentration data measured by the oxygen concentration sensor 311 in the environment regulating cavity 13 and the stirring cavity 12 are within a set range.

The invention is described above with reference to the accompanying drawings, it is obvious that the invention is not limited to the above-described embodiments, and it is within the scope of the invention to adopt such insubstantial modifications of the inventive method concept and solution, or to apply the inventive concept and solution directly to other applications without modification.