CN117247822A

CN117247822A - Annular spraying equipment

Info

Publication number: CN117247822A
Application number: CN202311105597.1A
Authority: CN
Inventors: 刘飞; 季永健
Original assignee: NANTONG KAISAI BIOCHEMICAL ENGINEERING EQUIPMENT CO LTD
Current assignee: NANTONG KAISAI BIOCHEMICAL ENGINEERING EQUIPMENT CO LTD
Priority date: 2023-08-30
Filing date: 2023-08-30
Publication date: 2023-12-19
Anticipated expiration: 2043-08-30

Abstract

The invention relates to the technical field of fermentation equipment, and discloses annular spraying equipment, which comprises a fermentation tank, a feed pipe communicated with the top end of the fermentation tank, and an adjusting annular spraying stirring mechanism arranged in the fermentation tank and at the bottom end outside the fermentation tank, wherein the adjusting annular spraying stirring mechanism comprises an adjusting annular spraying mechanism arranged in the fermentation tank, one side of the adjusting annular spraying mechanism is provided with a stirring mechanism, one side of the stirring mechanism is provided with a cleaning mechanism, an adjusting moving mechanism is arranged below the cleaning mechanism, an air inlet valve is opened, so that oxygen is conveyed into an air inlet annular plate, the oxygen is conveyed into a rotating plate through an air inlet hole to spray the oxygen through the air inlet pipe, the adjusting baffle is shifted to move to adjust the discharge flow of the air inlet hole, then a motor is started to rotate and drive a first connecting rod to rotate while the rotating plate is driven to rotate through the first connecting rod, and when the rotating plate rotates to drive the air inlet pipe to rotate, the full air injection operation of fermentation liquid in the fermentation tank can be achieved.

Description

Annular spraying equipment

Technical Field

The invention relates to the technical field of fermentation equipment, in particular to annular spraying equipment.

Background

Fermentation refers to the process by which one prepares microbial cells themselves, or direct or secondary metabolites, by means of the vital activities of microorganisms under aerobic or anaerobic conditions. Fermentation, which is sometimes referred to as fermentation, is defined as a biochemical reaction that organisms have earlier come into contact with in some way with respect to organic matter, and is widely used in the food industry, biology and chemical industry. It is also the basic process of bioengineering, i.e. fermentation engineering, and for the research of its mechanism and process control, it is continued to use the action of mechanical stirrer to make air and fermentation liquor fully mix, promote the dissolution of oxygen so as to ensure the supply of dissolved oxygen required for microbial growth and reproduction and metabolism.

The compressed air in the fermentation tank is introduced to perform gas-liquid jet mixing and stirring at present so as to improve the dissolved oxygen coefficient, improve the unit yield and reduce the energy consumption, but most of the fermentation tanks at present cannot adjust the gas flow when the inside is sprayed, so that the oxygen content required by different fermentation is different, the fermentation work of the fermentation tank is greatly limited, and the use of staff is inconvenient.

Disclosure of Invention

The present invention is directed to a loop spraying device, which solves the above-mentioned problems in the prior art.

In order to solve the technical problems, the invention provides the following technical scheme: an annular spraying device comprises a fermentation tank;

a feed pipe communicated with the top end of the fermentation tank;

and including setting up the adjusting ring that spouts rabbling mechanism in fermentation cylinder inside and outside bottom, adjusting ring spouts the rabbling mechanism including installing the adjusting ring that spouts in fermentation cylinder inside and spout the mechanism, adjusting ring spouts mechanism one side and installs rabbling mechanism, clearance mechanism is installed to rabbling mechanism one side, clearance mechanism installs the adjustment moving mechanism below.

According to the technical scheme, the adjusting ring spouts the mechanism and sets up the inlet valve at the fermentation cylinder outer wall including the intercommunication, the fermentation cylinder inner wall is seted up flutedly, inner wall fixedly connected with inlet ring board about the recess, inlet port has been seted up to inlet ring board outer wall, the recess inner wall is located inlet ring board one side and rotates and be connected with the rotor plate, rotor plate inner wall fixedly connected with fumarole, the space inner wall sliding connection between inlet ring board and the rotor plate has adjusting baffle, adjusting baffle top fixedly connected with adjusts the pole, the fermentation cylinder outer wall has seted up the change groove, adjusting lever outer wall sliding connection is at this change groove inner wall, adjusting lever outer wall fixedly connected with sealing baffle, sealing baffle outer wall hugs closely and seals at the fermentation cylinder outer wall, rotor plate top fixedly connected with first connecting rod.

According to the technical scheme, rabbling mechanism includes fixed frame on fermentation cylinder top of fixed frame bottom fixedly connected with motor, motor output fixedly connected with telescopic link, telescopic link outer wall and first link keep away from rotor plate one end fixedly connected with, the first puddler of telescopic link top outer wall fixedly connected with, the screw thread groove has been seted up to telescopic link bottom outer wall, screw thread groove inner wall threaded connection has the thread bush, thread bush bottom fixed connection is in fermentation cylinder inner wall bottom, telescopic link bottom outer wall fixedly connected with second connecting rod, second connecting rod bottom fixedly connected with second puddler.

According to the technical scheme, the cleaning mechanism comprises a third connecting rod fixedly connected to the outer wall of the telescopic rod, a first round hole is formed in one end, away from the telescopic rod, of the third connecting rod, a spring is fixedly connected to the inner wall of the round hole, a connecting sliding rod is fixedly connected to one end, away from the round hole, of the spring, a scraping plate is fixedly connected to one end, away from the spring, of the connecting sliding rod, and a lug is fixedly connected to the inner wall of the fermentation tank.

According to the technical scheme, adjust moving mechanism includes the holding ring of fixed connection at the fermentation cylinder outer wall, holding ring outer wall fixedly connected with supporting leg, the second round hole has been seted up to the supporting leg bottom, fermentation cylinder outer wall bottom fixedly connected with pneumatic cylinder, pneumatic cylinder output outer wall fixedly connected with fourth connecting rod, pneumatic cylinder one end fixedly connected with universal wheel is kept away from to the fourth connecting rod, universal wheel outer wall sliding connection is at the second round hole inner wall.

According to the technical scheme, the number of the air ejector tubes is a plurality of, the air ejector tubes are uniformly distributed on the inner wall of the rotating plate, the number of the first connecting rods is two, and the first connecting rods are symmetrically distributed on the top end of the rotating plate.

According to the technical scheme, the number of the first stirring rods is two, the first stirring rods are symmetrically distributed on the left side and the right side of the telescopic rods, the number of the second stirring rods is four, and the two second stirring rods are symmetrically distributed at the bottom ends of the second connecting rods.

According to the technical scheme, the inclined plane is arranged at one end of the outer wall of the scraper, and the height of the protruding block is smaller than the gap between the inclined plane arranged on the scraper and the inner wall of the fermentation tank.

According to the technical scheme, the inner wall of the second round hole formed in the bottom end of the supporting leg is suitably matched with the outer wall of the universal wheel in a sticking mode.

According to the technical scheme, the outer wall of the rotating plate is matched with the inner wall of the fermentation tank through the fit of the groove.

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

1. the invention comprises the following steps: opening the air inlet valve for oxygen is carried to the inlet ring plate, and oxygen at this moment can be carried to the rotation board through the inlet port in, then through the jet pipe with oxygen blowout, need adjust the flow size that admits air in, alright stir the regulation baffle and remove, the size of the discharge flow of alright adjust the inlet port through the removal of regulation baffle, then the starter motor rotates and will drive first connecting rod and rotate when stirring, rotate alright drive the rotation board through the rotation of first connecting rod and rotate, rotate the jet pipe when the rotation board rotates alright drive, thereby alright abundant carry out abundant jet work to the fermentation broth of fermentation cylinder inside.

2. The invention comprises the following steps: through the positive reversal of starter motor, alright drive the telescopic link and rotate, will drive first puddler and second puddler simultaneously and rotate to stir the work to the zymotic fluid, when the telescopic link rotates, the screw thread groove of its bottom just can carry out the screw thread rotation with the thread bush, thereby drives the telescopic link and reciprocates, so that can drive the second puddler and reciprocate, with this increase second puddler's stirring scope, improve stirring effect.

3. The invention comprises the following steps: the rotation through the telescopic link alright drive the third connecting rod and rotate and drive the scraper blade and rotate to this alright carry out residue cleaning work to the fermentation cylinder inner wall, can make the scraper blade hug closely the inner wall at the fermentation cylinder through the resilience force of spring, improve the cleaning effect, when the scraper blade rotates and contacts the lug, alright receive the extrusion effect of lug, thereby drive the first round hole inner wall that the connection slide bar was seted up at third connecting rod one end and remove, then extrude the compression to the spring, when no longer contacting with the lug, the spring alright rebound, drive the scraper blade rebound, then produce vibrating force, thereby can vibrate the residue on the scraper blade and shake off, thereby need not often clear up the scraper blade.

4. The invention comprises the following steps: the hydraulic cylinder is started, the output end of the hydraulic cylinder drives the fourth connecting rod to move downwards, the universal wheel can be driven to move downwards through the movement of the fourth connecting rod until the second round hole at the bottom end of the supporting leg is exposed, then the hydraulic cylinder contacts the ground, and the fermentation tank is supported up, so that the fermentation tank can move through the universal wheel.

Drawings

The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the internal cross-sectional structure of the present invention;

FIG. 3 is a schematic view of the internal cross-sectional structure of the adjusting ring spray mechanism of the present invention;

FIG. 4 is a schematic view of a cross-sectional structure of a loop spray in an adjusting loop spray mechanism of the present invention;

FIG. 5 is a schematic view of an adjusting mechanism in an adjusting ring spray mechanism of the present invention;

FIG. 6 is a schematic view of the stirring mechanism of the present invention;

FIG. 7 is a schematic view of a cleaning mechanism of the present invention;

fig. 8 is a schematic view of the structure of the adjusting and moving mechanism of the present invention.

In the figure: 1. a fermentation tank; 2. a feed pipe; 3. adjusting the annular spraying stirring mechanism; 31. adjusting the annular spraying mechanism; 311. an air inlet valve; 312. a groove; 313. an air inlet ring plate; 314. an air inlet hole; 315. a rotating plate; 316. a gas lance; 317. adjusting a baffle; 318. an adjusting rod; 319. a sealing baffle; 3110. a first link; 32. a stirring mechanism; 321. a fixed frame; 322. a motor; 323. a telescopic rod; 324. a first stirring rod; 325. a thread groove; 326. a thread sleeve; 327. a second link; 328. a second stirring rod; 33. a cleaning mechanism; 331. a third link; 332. a spring; 333. connecting a slide bar; 334. a scraper; 335. a bump; 34. adjusting the moving mechanism; 341. a support ring; 342. support legs; 343. a hydraulic cylinder; 344. a fourth link; 345. and a universal wheel.

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. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Example 1

The preferred embodiment of the annular spraying device provided by the invention is shown in fig. 1 to 8: the utility model provides a circular spraying equipment, includes fermentation cylinder 1, the feed pipe 2 that the intercommunication set up on fermentation cylinder 1 top to and including setting up in the inside and outside of fermentation cylinder 1 adjusting ring of bottom spouts rabbling mechanism 3, adjusting ring spouts rabbling mechanism 3 including installing at the inside adjusting ring of fermentation cylinder 1 spouts mechanism 31, adjusting ring spouts mechanism 31 one side and installs rabbling mechanism 32, and clearance mechanism 33 is installed to rabbling mechanism 32 one side, and clearance mechanism 33 below is installed and is adjusted moving mechanism 34.

The adjusting ring spraying mechanism 31 comprises an air inlet valve 311 which is communicated with the outer wall of the fermentation tank 1, a groove 312 is formed in the inner wall of the fermentation tank 1, an air inlet hole 314 is formed in the outer wall of the air inlet ring plate 313, an air rotating plate 315 is rotatably connected to one side of the air inlet ring plate 313 on the inner wall of the groove 312, an air jet pipe 316 is fixedly connected to the inner wall of the rotating plate 315, an adjusting baffle 317 is slidably connected to the inner wall of a gap between the air inlet ring plate 313 and the rotating plate 315, an adjusting rod 318 is fixedly connected to the top end of the adjusting baffle 317, a rotary groove is formed in the outer wall of the fermentation tank 1, the outer wall of the adjusting rod 318 is slidably connected to the inner wall of the rotary groove, a sealing baffle 319 is fixedly connected to the outer wall of the adjusting rod 318, the outer wall of the sealing baffle 319 is tightly sealed on the outer wall of the fermentation tank 1, and a first connecting rod 3110 is fixedly connected to the top end of the rotating plate 315.

In this embodiment, firstly, the oxygen therapy device is in butt joint with the air inlet valve 311, then the air inlet valve 311 is opened, so that oxygen is conveyed to the air inlet annular plate 313, at this time, oxygen can be conveyed to the rotating plate 315 through the air inlet hole 314, then the air jet pipe 316 is used for jetting oxygen, when the air inlet flow is required to be regulated, the regulating baffle 317 can be stirred to move, the size of the air outlet flow of the air inlet hole 314 can be regulated through the movement of the regulating baffle 317, then the motor 322 is started to rotate to stir and drive the first connecting rod 3110 to rotate, the rotating plate 315 can be driven to rotate through the rotation of the first connecting rod 3110, and the air jet pipe 316 can be driven to rotate through the rotation of the rotating plate 315, so that the fermentation liquor in the fermentation tank 1 can be fully jetted.

Further, the number of the air nozzles 316 is a plurality, the air nozzles 316 are uniformly distributed on the inner wall of the rotating plate 315, the number of the first connecting rods 3110 is two, the first connecting rods 3110 are symmetrically distributed on the top end of the rotating plate 315, and the two left and right ends of the rotating plate 315 can be connected and supported through the two first connecting rods 3110, so that stability of the rotating plate 315 is guaranteed.

Further, the outer wall of the rotating plate 315 is suitably matched with the inner wall of the groove 312 formed on the inner wall of the fermentation tank 1, and the rotating stability can be ensured by suitably matching the outer wall of the rotating plate 315 with the inner wall of the groove 312, and meanwhile, fermentation liquor is prevented from penetrating into the groove 312.

Example 2

On the basis of the embodiment 1, the preferred embodiment of the annular spraying device provided by the invention comprises: the rabbling mechanism 32 includes fixed frame 321 of fixed frame 321 bottom fixedly connected with motor 322 on fermentation cylinder 1 top, motor 322 output fixedly connected with telescopic link 323, telescopic link 323 outer wall and first connecting rod 3110 keep away from rotor plate 315 one end fixedly connected with, telescopic link 323 top outer wall fixedly connected with first puddler 324, screw groove 325 has been seted up to telescopic link 323 bottom outer wall, screw groove 325 inner wall threaded connection has thread bush 326, thread bush 326 bottom fixed connection is in fermentation cylinder 1 inner wall bottom, telescopic link 323 bottom outer wall fixedly connected with second connecting rod 327, second connecting rod 327 bottom fixedly connected with second puddler 328.

In this embodiment, the telescopic rod 323 is driven to rotate by the forward and reverse rotation of the starting motor 322, and meanwhile, the first stirring rod 324 and the second stirring rod 328 are driven to rotate, so that the fermentation liquid is stirred, when the telescopic rod 323 rotates, the threaded groove 325 at the bottom of the telescopic rod 323 can rotate with the threaded sleeve 326 in a threaded manner, so that the telescopic rod 323 is driven to move up and down, the second stirring rod 328 is driven to move up and down, the stirring range of the second stirring rod 328 is enlarged, and the stirring effect is improved.

Further, the number of the first stirring rods 324 is two, the two stirring rods are symmetrically distributed on the left side and the right side of the telescopic rod 323, the number of the second stirring rods 328 is four, the two second stirring rods 328 are symmetrically distributed at the bottom end of the second connecting rod 327, fermentation liquor at the top position of the fermentation tank 1 can be stirred through the two first stirring rods 324, and the second stirring rods 328 can stir the middle lower portion of the fermentation tank 1.

Example 3

On the basis of the embodiment 1, the preferred embodiment of the annular spraying device provided by the invention comprises: the cleaning mechanism 33 comprises a third connecting rod 331 fixedly connected to the outer wall of the telescopic rod 323, a first round hole is formed in one end, far away from the telescopic rod 323, of the third connecting rod 331, a spring 332 is fixedly connected to the inner wall of the round hole, a connecting sliding rod 333 is fixedly connected to one end, far away from the round hole, of the spring 332, a scraping plate 334 is fixedly connected to one end, far away from the spring 332, of the connecting sliding rod 333, and a lug 335 is fixedly connected to the inner wall of the fermentation tank 1.

In this embodiment, the third connecting rod 331 is driven to rotate through the rotation of the telescopic rod 323, the scraper 334 is driven to rotate through the rotation of the third connecting rod 331, so that the residue cleaning work can be performed on the inner wall of the fermentation tank 1, the scraper 334 can be tightly attached to the inner wall of the fermentation tank 1 through the resilience force of the spring 332, the cleaning effect is improved, when the scraper 334 rotates to contact with the protruding block 335, the extrusion effect of the protruding block 335 can be received, thereby the first round hole inner wall of the connecting slide rod 333 at one end of the third connecting rod 331 is driven to move, then the spring 332 is extruded and compressed, when the connecting slide rod is not contacted with the protruding block 335 any more, the spring 332 can rebound, the scraper 334 is driven to rebound, then vibration force is generated, and accordingly the residue on the scraper 334 can be vibrated and shaken off, and therefore the scraper 334 is not required to be cleaned frequently.

Further, the inclined plane setting has been seted up to scraper 334 outer wall one end, and the height of lug 335 is less than the clearance between inclined plane that scraper 334 set up and the fermentation cylinder 1 inner wall, highly is less than the clearance through the lug 335, alright make scraper 334 at the removal in-process, receive the extrusion of lug 335 more easily, can not cause spacing fixed between the two.

Example 4

On the basis of the embodiment 1, the preferred embodiment of the annular spraying device provided by the invention comprises: the adjusting and moving mechanism 34 comprises a supporting ring 341 fixedly connected to the outer wall of the fermentation tank 1, supporting legs 342 are fixedly connected to the outer wall of the supporting ring 341, a second round hole is formed in the bottom end of each supporting leg 342, a hydraulic cylinder 343 is fixedly connected to the bottom end of the outer wall of the fermentation tank 1, a fourth connecting rod 344 is fixedly connected to the outer wall of the output end of each hydraulic cylinder 343, a universal wheel 345 is fixedly connected to one end, away from the hydraulic cylinder 343, of each fourth connecting rod 344, and the outer wall of each universal wheel 345 is slidably connected to the inner wall of each second round hole.

In this embodiment, when the fermenter 1 needs to be moved, the hydraulic cylinder 343 is started, the output end of the hydraulic cylinder will drive the fourth link 344 to move downward, and the universal wheel 345 is driven to move downward by the movement of the fourth link 344 until the second round hole at the bottom end of the supporting leg 342 is exposed, and then the hydraulic cylinder contacts the ground, and then the fermenter 1 is supported up, so that the hydraulic cylinder can move through the universal wheel 345.

Further, the inner wall of the second round hole formed at the bottom end of the supporting leg 342 is suitably matched with the outer wall of the universal wheel 345, and the transverse stability of the universal wheel 345 can be maintained in the moving process through the suitable matching of the inner wall of the second round hole and the outer wall of the universal wheel 345.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An annular spraying device comprises a fermentation tank (1);

a feed pipe (2) communicated with the top end of the fermentation tank (1);

and including setting up in the inside and the outer adjusting ring of outside bottom of fermentation cylinder (1) spouts rabbling mechanism (3), its characterized in that: the regulating ring spraying stirring mechanism (3) comprises a regulating ring spraying mechanism (31) arranged inside the fermentation tank (1), a stirring mechanism (32) is arranged on one side of the regulating ring spraying mechanism (31), a cleaning mechanism (33) is arranged on one side of the stirring mechanism (32), and a regulating moving mechanism (34) is arranged below the cleaning mechanism (33).

2. A loop spraying device according to claim 1, characterized in that: the utility model provides a fermentation cylinder, including the inlet valve (311) that the mechanism (31) was spouted to the adjusting ring, fermentation cylinder (1) inner wall is offered flutedly (312) including the intercommunication setting at fermentation cylinder (1) outer wall, inner wall fixedly connected with inlet ring board (313) about flutedly (312), inlet port (314) have been offered to inlet ring board (313) outer wall, recess (312) inner wall is located inlet ring board (313) one side rotation and is connected with rotor plate (315), rotor plate (315) inner wall fixedly connected with fumarole (316), gap inner wall sliding connection between inlet ring board (313) and rotor plate (315) has regulating baffle (317), regulating baffle (317) top fixedly connected with adjusts pole (318), the rotary tank has been offered to fermentation cylinder (1) outer wall, regulating rod (318) outer wall sliding connection is at this rotary tank inner wall, regulating rod (318) outer wall fixedly connected with sealing baffle (319), sealing baffle (319) outer wall hugs closely and seals at fermentation cylinder (1) outer wall, rotor plate (315) top fixedly connected with first connecting rod (3110).

3. A loop spraying device according to claim 1, characterized in that: stirring mechanism (32) are including fixed frame (321) of fixed connection on fermentation cylinder (1) top, fixed frame (321) bottom fixedly connected with motor (322), motor (322) output fixedly connected with telescopic link (323), telescopic link (323) outer wall and first connecting rod (3110) keep away from rotor plate (315) one end fixedly connected with, first puddler (324) of telescopic link (323) top outer wall fixedly connected with, screw thread groove (325) have been seted up to telescopic link (323) bottom outer wall, screw thread groove (325) inner wall threaded connection has screw thread sleeve (326), screw thread sleeve (326) bottom fixedly connected with is in fermentation cylinder (1) inner wall bottom, telescopic link (323) bottom outer wall fixedly connected with second connecting rod (327), second connecting rod (327) bottom fixedly connected with second puddler (328).

4. A loop spraying device according to claim 1, characterized in that: the cleaning mechanism (33) comprises a third connecting rod (331) fixedly connected to the outer wall of the telescopic rod (323), a first round hole is formed in the end, away from the telescopic rod (323), of the third connecting rod (331), a spring (332) is fixedly connected to the inner wall of the round hole, a connecting sliding rod (333) is fixedly connected to the end, away from the round hole, of the spring (332), a scraping plate (334) is fixedly connected to the end, away from the spring (332), of the connecting sliding rod (333), and a convex block (335) is fixedly connected to the inner wall of the fermentation tank (1).

5. A loop spraying device according to claim 1, characterized in that: the adjusting and moving mechanism (34) comprises a supporting ring (341) fixedly connected to the outer wall of the fermentation tank (1), supporting legs (342) are fixedly connected to the outer wall of the supporting ring (341), second round holes are formed in the bottom ends of the supporting legs (342), hydraulic cylinders (343) are fixedly connected to the bottom ends of the outer walls of the fermentation tank (1), fourth connecting rods (344) are fixedly connected to the outer walls of the output ends of the hydraulic cylinders (343), universal wheels (345) are fixedly connected to one ends of the fourth connecting rods (344) away from the hydraulic cylinders (343), and the outer walls of the universal wheels (345) are slidably connected to the inner walls of the second round holes.

6. A loop spraying device according to claim 2, characterized in that: the number of the air ejector pipes (316) is a plurality of, the air ejector pipes (316) are uniformly distributed on the inner wall of the rotating plate (315), the number of the first connecting rods (3110) is two, and the first connecting rods (3110) are symmetrically distributed on the top end of the rotating plate (315).

7. A loop spraying device according to claim 3, characterised in that: the number of the first stirring rods (324) is two, the first stirring rods are symmetrically distributed on the left side and the right side of the telescopic rods (323), the number of the second stirring rods (328) is four, and the two second stirring rods (328) are symmetrically distributed at the bottom end of the second connecting rod (327).

8. The annular spraying device according to claim 4, wherein: one end of the outer wall of the scraping plate (334) is provided with an inclined plane, and the height of the protruding block (335) is smaller than the gap between the inclined plane provided by the scraping plate (334) and the inner wall of the fermentation tank (1).

9. A loop spraying device according to claim 5, characterized in that: the inner wall of the second round hole formed at the bottom end of the supporting leg (342) is suitably matched with the outer wall of the universal wheel (345).

10. A loop spraying device according to claim 2, characterized in that: the outer wall of the rotating plate (315) is matched with the inner wall of the fermentation tank (1) with a groove (312).