Local fluidization aerobic fermentation system

Abstract

The invention discloses a local fluidization aerobic fermentation system which comprises a fermentation tank, an exhaust fan is arranged at the top of the fermentation tank, a plurality of ventilation pipes are arranged in the fermentation tank, ventilation valves are arranged at the top ends of the ventilation pipes, a water inlet pipe and an inner air inlet pipe are arranged in the fermentation tank, the ventilation pipes are connected and communicated with the water inlet pipe at the same time, and a water inlet valve is arranged on the water inlet pipe. The bottom ends of the ventilation pipes are simultaneously connected and communicated with the inner air inlet pipe, the outer air inlet pipe is provided with an air inlet valve and connected with an air inlet fan, the inner air inlet pipe is provided with a drainage hole, the drainage hole is connected with the water collecting tank through a pipeline, the water collecting tank is connected with a drainage pipe, and the drainage pipe is provided with a drainage valve. A plurality of first ventilation holes are formed in the ventilation pipe, check blocks are arranged at the first ventilation holes, second ventilation holes are formed in the bottom walls of the check blocks, and the top ends of the second ventilation holes bend and extend to be communicated with the first ventilation holes. The structure can solve the problem of condensing and rewetting materials, can realize multiple ventilation modes, and improves the fermentation effect.

Description

Technical Field

[0001] The present invention relates to the technical field of fermentation systems, in particular to a local fluidized aerobic fermentation system. Background Art

[0002] With the development of society and the improvement of civilization, the requirements for the treatment of organic solid waste are becoming increasingly higher. Traditional stacking fermentation and tank fermentation are being replaced by various vertical fermentation tanks due to their large footprint, poor environmental conditions and low efficiency. Compared with traditional stacking and tank fermentation, vertical fermentation tanks have the following advantages:

[0003] 1. High degree of automation: The combination of PLC and host computer can realize remote control. One person can complete the entire fermentation process, reducing manual intervention and the risk of human error.

[0004] 2. High fermentation efficiency: By precisely controlling parameters such as temperature, humidity, and oxygen content, an optimal growth environment is created for microorganisms, which can effectively accelerate the fermentation process.

[0005] 3. High degree of harmlessness: By controlling the temperature between 65℃-80℃, harmful substances such as pathogens, parasite eggs and weed seeds in the material can be effectively killed to achieve harmless treatment.

[0006] 4. Good environmental performance: The fully enclosed structure allows the material to ferment in the tank without direct contact with the ambient air, reducing odor and mosquito and fly breeding. The equipped exhaust gas treatment device can purify the small amount of exhaust gas generated, meeting environmental protection requirements.

[0007] 5. Small footprint: Vertical structure design, small footprint, suitable for use in places with limited space such as farms and waste treatment centers.

[0008] 6. Stable product quality: In a sealed, controlled environment, microorganisms can evenly and fully decompose organic materials.

[0009] The following problems are common in the application of vertical fermentation silos:

[0010] The equipment cost is relatively high: the vertical structure design is complex, and the supporting components such as the automatic control system, stirring device and sealing system are expensive.

[0011] Difficulty in repair and maintenance: The internal structure is compact. If the stirring shaft, aeration device and other components fail, the tank needs to be shut down and disassembled. The repair process is cumbersome and the maintenance cost is high.

[0012] Limited material adaptability: Stringent requirements are placed on the moisture content and particle size of the material. A high moisture content can easily cause the material to adhere to the tank wall, affecting mixing efficiency; a low moisture content can cause material agglomeration, uneven ventilation, and reduced fermentation efficiency.

[0013] Relatively high energy consumption: To maintain stable parameters such as temperature and oxygen in the tank, the heating, ventilation and stirring systems need to be continuously operated. Especially in winter or low temperature environments, energy consumption costs will further increase.

[0014] Challenges in mixing uniformity: Materials at different heights in the tank are affected differently by the stirring force, and the materials at the bottom are easily compacted. If the stirring speed or paddle design is unreasonable, the fermentation progress of the materials in the upper and lower layers may be inconsistent, affecting the overall maturity.

[0015] Material rewetting: The hot and humid exhaust gas in the material can only escape from the top. The condensed water in the process of the hot and humid air passing upward in the material causes the upper material to rewet, affecting the fermentation effect.

[0016] Gas emissions and odor control: If gases such as ammonia and hydrogen sulfide produced during the fermentation process are not handled in a timely manner, they may accumulate in the tank, which will not only affect the activity of microorganisms, but also require the additional configuration of high-efficiency waste gas treatment equipment, increasing environmental protection costs.

[0017] For example, the patent document application No. 201410312046.7 provides a "vertical fermentation tank". This design combines vertical stirring in the center of the fermentation tank with ventilation around the fermentation tank. However, the problem is that the stirring power consumption is large, the distribution of ventilation points makes it difficult to achieve uniform aeration in the tank, and the hot and humid exhaust gas in the material can only escape from the top. The condensed water formed in the process of the hot and humid air passing upward in the material causes the upper material to rehumidify, affecting the fermentation effect.

[0018] For example, the patent document with application number 201810446640.3 provides an "automatic premixed compost fermentation method and device", proposing a fermentation tank combining a spiral lifting device with a hollow ventilation stirring blade. The problem is that when the shaft spiral lifting device is directly used to lift wet materials, it is easy to cause "shaft sticking" failure. The mixing of new materials and clinker depends on the circulating mixing of the materials in the entire fermentation bin. The power consumption is large and the mixing efficiency is low. The wet materials and the hot and humid exhaust in the materials can only escape from the top. The condensed water formed in the process of the hot and humid air passing upward in the material causes the upper material to re-wet, affecting the fermentation effect. Summary of the Invention

[0019] In view of the defects in the prior art, the present invention provides a local fluidized aerobic fermentation system. This structure can solve the problem of condensed and rehumidified materials, and can realize multiple ventilation modes to improve the fermentation effect.

[0020] A local fluidized aerobic fermentation system comprises a fermentation tank, an exhaust fan is provided on the top of the fermentation tank, a plurality of ventilation pipes are provided in the fermentation tank, the ventilation pipes are arranged longitudinally, the top ends of the ventilation pipes are provided with ventilation valves, a water inlet pipe and an inner air inlet pipe are provided in the fermentation tank, the plurality of ventilation pipes are simultaneously connected and communicated with the water inlet pipe, the water inlet pipe is provided with a water inlet valve, the bottom ends of the plurality of ventilation pipes are simultaneously connected and communicated with the inner air inlet pipe, the inner air inlet pipe is connected to the outer air inlet pipe, the outer air inlet pipe is provided with an air inlet valve, the outer air inlet pipe is connected to the air inlet fan, the inner air inlet pipe is provided with a drainage hole, the drainage hole is connected to a water collecting box through a pipe, the water collecting box is connected to a drainage pipe, and the drainage pipe is provided with a drainage valve;

[0021] Several ventilation holes are provided on the ventilation pipe, and a water retaining device is provided at one of the ventilation holes. The water retaining device can prevent water in the ventilation pipe from flowing out, and the water retaining device can allow the ventilation hole to circulate air inside and outside the ventilation pipe.

[0022] Preferably, the water retaining device is a retaining block, a bottom wall of the retaining block is provided with a second ventilation hole, and a top end of the second ventilation hole is bent and extended to communicate with the first ventilation hole.

[0023] Preferably, it also includes a horizontal screw conveyor and a vertical screw conveyor;

[0024] The vertical screw conveyor includes a lower pipe section, an upper pipe section, a vertical screw conveying rod and a vertical screw rod driving motor. The lower pipe section is installed at the bottom end of the fermentation tank, the upper pipe section is located in the fermentation tank, the output shaft of the vertical screw rod driving motor is connected to the vertical screw conveying rod, and the vertical screw conveying rod passes through the lower pipe section and the upper pipe section;

[0025] The material conveying pipe of the horizontal screw conveyor is connected to the lower pipe section. The horizontal screw conveyor can convey the material to the lower pipe section and then convey it to the fermentation tank through the vertical screw conveying rod.

[0026] Preferably, the top end of the vertical spiral conveying rod is connected to two or more rotating distribution rods.

[0027] Preferably, the side wall of the lower pipe section is provided with an air inlet hole 1 and an air inlet hole 2, and both the air inlet hole 1 and the air inlet hole 2 are connected to a fan. When the vertical screw conveyor rod rotates to make the material rise, the air inlet direction of the air inlet hole 1 is opposite to the rotation direction of the vertical screw conveyor rod.

[0028] When the vertical screw conveyor rod rotates to cause the material to descend, the air inlet direction of the second air inlet hole is opposite to the rotation direction of the vertical screw conveyor rod.

[0029] Preferably, it also includes an aging bin and a feeding device, wherein the feeding device can feed the material processed in the fermentation tank to the aging bin, and a suction aeration head is provided in the aging bin.

[0030] The suction aeration head includes an outer tube and an inner tube, the inner tube is connected to the outer tube through a connecting rod, the outer tube is connected to an air inlet pipe, the air inlet pipe is connected to an air inlet pipe, and the air inlet pipe is connected to an air outlet of a conveying fan.

[0031] One end of the inner tube is connected to the discharge pipe, the discharge pipe is connected to the cyclone separator, the bottom end of the cyclone separator is connected to the air shut-off discharger, the cyclone separator can absorb the material and discharge the material to the air shut-off discharger, the top of the cyclone separator is connected to the separator exhaust pipe, the air inlet pipe of the conveying fan 1 is connected to the separator exhaust pipe and the external air pipe at the same time, the separator exhaust pipe is provided with a separator exhaust valve, and the external air pipe is provided with an external air valve;

[0032] The bottom end of the air-locking unloader is provided with a discharge pipe, and a discharge valve is arranged at the discharge pipe.

[0033] Preferably, it also includes a suction aeration head traction mechanism, which can pull the suction aeration head to move in the aging bin. The discharge pipe and the air inlet pipe are both hoses, and both the discharge pipe and the air inlet pipe are movable through the side wall of the aging bin.

[0034] Preferably, the suction aeration head traction mechanism includes more than two traction winches, which are distributed around the aging bin. The traction winches are connected with ropes, which pass through the side wall of the aging bin and are connected to the suction aeration head.

[0035] Preferably, a hanging ring is connected to the outer tube of the suction aeration head, and the rope is connected to the hanging ring.

[0036] Preferably, an input hole and a discharge hole are provided on the discharge pipe, the input hole is connected to the second conveying fan, the discharge hole is connected to the feed pipe, and the feed pipe is connected to the aging bin.

[0037] Preferably, it also includes an aging bin and a feeding device, the feeding device can transport the material processed by the fermentation tank to the aging bin, the aging bin is provided with a material fluidization device, the material fluidization device includes a blowing pipe and a material extraction pipe, the blowing pipe is connected to the hair dryer, the material extraction pipe is connected to the extraction device,

[0038] The blowing main pipe is connected to at least one blowing branch pipe, and the blowing branch pipe has more than one blowing hole. The material extraction main pipe is connected to at least one material extraction branch pipe, and the material extraction branch pipe has more than one material extraction hole.

[0039] A blowing branch pipe and a material extraction branch pipe constitute a branch pipe unit, and a material extraction hole and an air blowing hole in a branch pipe unit constitute a fluidization unit. In a fluidization unit, the gas discharged from the air blowing hole can fluidize the material, and the material extraction hole can suck in the fluidized material.

[0040] The beneficial effects of the present invention are embodied in:

[0041] This technical solution has multiple operating modes such as aeration mode, exhaust mode, breathing mode, natural ventilation mode and cooling mode to improve the fermentation effect.

[0042] In this technical solution, the material transportation process has a fluidization function to ensure smooth material transportation.

[0043] In this technical solution, a number of longitudinal ventilation pipes are provided to achieve all-round aeration and exhaust under fermentation conditions with powered ventilation and without powered ventilation, eliminating the problem of condensation and rehumidification of fermentation materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly describes the drawings required for the specific embodiments or the description of the prior art. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. Elements or parts in the drawings are not necessarily drawn to scale.

[0045] Figure 1 Schematic cross-section of a fermentation tank according to an embodiment of the present invention;

[0046] Figure 2 is a schematic cross-sectional view of the ventilation pipe of the present invention;

[0047] Figure 3 for Figure 2 A schematic diagram of the enlarged structure of position A in the middle;

[0048] Figure 4 This is a cross-sectional schematic diagram of multiple fermentation tanks used in series in the present invention;

[0049] Figure 5 This is a schematic diagram of the structure of the aging bin and related components in the present invention;

[0050] Figure 6 This is a schematic diagram of the overall structure of the suction aeration head of the present invention;

[0051] Figure 7 It is a rear cross-sectional view of the material fluidization device in Example 5 of the present invention.

[0052] In the accompanying drawings,

[0053] 1-Fermentation tank, 2-Ventilation pipe, 3-Ventilation valve, 4-Inner air inlet pipe, 5-External air inlet pipe, 6-Water collecting tank, 7-Drain pipe, 8-Water inlet pipe, 9-Exhaust fan, 10-Inlet fan, 11-Block, 12-Ventilation hole 1, 13-Ventilation hole 2, 14-Vertical screw conveyor, 15-Rotating distribution boom, 16-Horizontal screw conveyor;

[0054] 141-lower pipe section, 142-upper pipe section, 143-vertical screw conveying rod, 144-vertical screw rod driving motor;

[0055] 161-feeding pipe, 162-horizontal screw drive motor, 163-feeding hopper, 164-discharge pipe;

[0056] 21-Aging bin, 22-Conveying device, 23-Cyclone separator, 24-Air shut-off unloader, 25-Suction aeration head, 26-Discharge pipe, 27-Air inlet pipe, 28-Conveying fan 1, 29-Separator exhaust pipe, 30-External air pipe, 31-Traction winch, 32-Rope, 33-Conveying fan 2, 34-Feed pipe, 35-Blowing main pipe, 36-Blowing branch pipe, 37-Extraction main pipe, 38-Extraction branch pipe, 39-Blowing hole, 40-Extraction hole;

[0057] 251-outer pipe, 252-inner pipe, 253-intake pipe;

[0058] 1411-Air inlet 1, 1412-Air inlet 2. DETAILED DESCRIPTION

[0059] The following embodiments of the technical solution of the present invention will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are therefore only examples and are not intended to limit the scope of protection of the present invention.

[0060] It should be noted that, unless otherwise specified, the technical or scientific terms used in this application should have the common meanings understood by those skilled in the art to which the present invention belongs.

[0061] Example 1

[0062] like Figure 1-Figure 3 As shown, the present embodiment provides a local fluidized aerobic fermentation system, including a fermentation tank 1, an exhaust fan 9 is provided on the top of the fermentation tank 1, a plurality of ventilation pipes 2 are provided in the fermentation tank 1, the ventilation pipes 2 are arranged longitudinally, and a ventilation valve 3 is provided at the top of the ventilation pipe 2, a water inlet pipe 8 and an inner air inlet pipe 4 are provided in the fermentation tank 1, the plurality of ventilation pipes 2 are connected and communicated with the water inlet pipe 8 at the same time, the water inlet pipe 8 is provided with a water inlet valve, the bottom ends of the plurality of ventilation pipes 2 are connected and communicated with the inner air inlet pipe 4 at the same time, the inner air inlet pipe 4 is connected to the outer air inlet pipe 5, the outer air inlet pipe 5 is provided with an air inlet valve, the outer air inlet pipe 5 is connected to the air inlet fan 10, the inner air inlet pipe 4 is provided with a drainage hole, the drainage hole is connected to the water collecting box 6 through a pipe, the water collecting box 6 is connected to a drain pipe 7, and the drain pipe 7 is provided with a drainage valve;

[0063] The ventilation pipe 2 is provided with a plurality of ventilation holes 12, and a water retaining device is provided at the ventilation hole 12. The water retaining device can prevent the water in the ventilation pipe 2 from flowing out, and the water retaining device can allow the ventilation hole 12 to allow air to circulate inside and outside the ventilation pipe 2.

[0064] In this embodiment, the water retaining device is a retaining block 11 , and a second ventilation hole 13 is formed on the bottom wall of the retaining block 11 . The top end of the second ventilation hole 13 bends and extends to communicate with the first ventilation hole 12 .

[0065] Through the cooperation of various components, this embodiment has multiple operating modes, including aeration mode, suction mode, breathing mode, natural ventilation mode and cooling mode.

[0066] Aeration mode: the ventilation valve 3 is closed, the air inlet valve is opened, the air inlet fan 10 is started, and the air enters the surrounding fermentation material through the holes on the ventilation pipe 2.

[0067] Exhaust mode: The ventilation valve 3 is opened, the air inlet valve is opened, and the air inlet fan 10 is started. The air flows at a high speed in the ventilation pipe 2, forming a negative pressure due to the Venturi effect, and sucking out the hot and humid air of the materials around the ventilation pipe 2.

[0068] Breathing mode: a portion of the ventilation valves 3 are opened, a portion of the ventilation valves 3 are closed, the air inlet valve is opened, the air inlet fan 10 is started, a portion of the fermentation tank 1 is aerated, and a portion is exhausted, forming a breathing dynamic aerobic fermentation system.

[0069] Natural ventilation mode: the ventilation valve 3 is opened, the air inlet valve is closed, and the air inlet fan 10 is turned off. The hot and humid air generated by the heat of the fermentation material overflows into the ventilation pipe 2. The hot air flows upward and enters the top of the fermentation tank 1. It is drawn into the exhaust gas treatment system through the exhaust fan 9 and discharged after treatment to meet the standards. The condensed water flows downward along the ventilation pipe 2 into the inner air inlet pipe 4 and then into the water collecting tank 6, and then into the drain pipe 7. The drain valve is opened when draining.

[0070] Cooling mode: In natural ventilation mode, water is passed through the water inlet pipe 8 at the top of the ventilation pipe 2, and the material is cooled by heat exchange between the ventilation pipe 2 and the fermentation material to meet the cooling requirements of the fermentation process.

[0071] In this embodiment, a plurality of blocks 11 are provided on the inner wall of ventilation tube 2. The bottom wall of each block 11 defines a second ventilation hole 13. The top of second ventilation hole 13 curves and extends to connect with first ventilation hole 12. Because ventilation tube 2 is arranged longitudinally, the bottom of second ventilation hole 12 is at a height difference from first ventilation hole 11. This prevents water from flowing into the fermented product from ventilation tube 2, thus resolving the problem of condensation and rewetting of the product.

[0072] In this embodiment, the ventilation pipe 2 can be configured as a circular pipe, a rectangular pipe, a triangular pipe, etc., and can be selected according to actual needs.

[0073] This embodiment also includes a horizontal screw conveyor 16 and a vertical screw conveyor 14;

[0074] The vertical screw conveyor 14 includes a lower pipe section 141, an upper pipe section 142, a vertical screw conveying rod 143 and a vertical screw rod driving motor 144. The lower pipe section 141 is installed at the bottom end of the fermentation tank 1, and the upper pipe section 142 is located in the fermentation tank 1. The output shaft of the vertical screw rod driving motor 144 is connected to the vertical screw conveying rod 143, and the vertical screw conveying rod 143 passes through the lower pipe section 141 and the upper pipe section 142.

[0075] The conveying pipe 161 of the horizontal screw conveyor 16 is connected to the lower pipe section 141 . The horizontal screw conveyor 16 can convey the material to the lower pipe section 141 and then convey it into the fermentation tank 1 through the vertical screw conveying rod 143 .

[0076] In this embodiment, a vertical screw conveyor 14 and a horizontal screw conveyor 16 are provided. When material enters the fermenter 1, the horizontal screw conveyor 16 conveys the material into the lower pipe section 141. The vertical screw conveyor rod 143 drives the material upward, passes through the lower pipe section 141 and the upper pipe section 142, and is discharged from the top of the upper pipe section 142, thus completing the loading of the material into the fermenter 1. When the material is discharged, the vertical screw conveyor rod 143 reverses, and the material enters the lower pipe section 141 from the space between the upper pipe section 142 and the lower pipe section 141, completing the discharge of the material.

[0077] In this embodiment, the top of the vertical spiral conveying rod 143 is connected to two or more rotating distribution rods 15. In this embodiment, the rotating distribution rods 15 are provided to further crush the lifted materials and distribute them to the surroundings.

[0078] In this embodiment, the side wall of the lower pipe section 141 is provided with an air inlet hole 1411 and an air inlet hole 2 1412. Both the air inlet hole 1411 and the air inlet hole 2 1412 are connected to fans. When the vertical spiral conveying rod 143 rotates to make the material rise, the air inlet direction of the air inlet hole 1411 is opposite to the rotation direction of the vertical spiral conveying rod 143.

[0079] When the vertical spiral conveying rod 143 rotates to cause the material to descend, the air inlet direction of the second air inlet hole 1412 is opposite to the rotation direction of the vertical spiral conveying rod 143 .

[0080] In this embodiment, an air inlet hole 1411 and an air inlet hole 2 1412 are opened on the side wall of the lower pipe section 141, and both the air inlet hole 1411 and the air inlet hole 2 1412 are connected to fans.

[0081] When the vertical screw conveyor rod 143 rotates to make the material rise, the fan connected to the air inlet hole 1411 is turned on, and the air inlet direction of the air inlet hole 1411 is opposite to the rotation direction of the vertical screw conveyor rod 143. Air is injected to form a fluidized body, which can accelerate the upward movement of the material, reduce the material density, prevent blockage, accelerate dehydration, fully stir, and crush the material.

[0082] When the vertical spiral conveying rod 143 rotates in the opposite direction to cause the material to descend, the fan connected to the second air inlet hole 1412 is turned on, and the air inlet direction of the second air inlet hole 1412 is opposite to the rotation direction of the vertical spiral conveying rod 143. Air is injected to form a fluidized body, which can accelerate the downward movement of the material, empty the residual material in the pipe, reduce the material density, prevent blockage, and ensure smooth discharge.

[0083] Example 2

[0084] This embodiment further defines Example 1 and utilizes a single fermentation tank 1. A horizontal screw conveyor 16 includes a feed pipe 161, a horizontal screw drive motor 162, and a horizontal screw conveyor rod. The horizontal screw drive motor 162 is connected to the horizontal screw conveyor rod, which enters the feed pipe 161. Feed pipe 161 is connected to a feed hopper 163 and a discharge pipe 164, with discharge pipe 164 located to the left of feed hopper 163.

[0085] When loading, materials are added through the feed hopper 163 , and the materials are transported to the lower pipe section 141 by the horizontal screw conveying rod, and are transported upward by the vertical screw conveying rod 143 .

[0086] During discharge, the vertical screw conveying rod 143 and the horizontal screw conveying rod are reversed, and the material is discharged from the discharge pipe 164.

[0087] Example 3

[0088] like Figure 4 As shown, this embodiment further defines the structure of Example 1. Three fermentation tanks 1 are connected in series. A horizontal screw conveyor 16 includes a feed pipe 161, a horizontal screw drive motor 162, and a horizontal screw conveyor rod. The horizontal screw drive motor 162 is connected to the horizontal screw conveyor rod, which enters the feed pipe 161. The feed pipe 161 is connected to the lower pipe sections 141 of the three vertical screw conveyors 14. A feed hopper 163 is located to the left of the feed pipe 161.

[0089] When loading the first fermentation tank 1, the horizontal screw drive motor 162 and the vertical screw drive motor 144 rotate forward, and the material enters the first fermentation tank 1. When the material flows from the first fermentation tank 1 to the second fermentation tank 1, the vertical screw drive motor 144 on the first fermentation tank 1 rotates reversely. The vertical screw drive motor 144 on the second fermentation tank 1 rotates forward, and the material is discharged from the first fermentation tank 1 into the second fermentation tank 1. This process is repeated in this order, so that multiple fermentation tanks 1 can be used in series.

[0090] Example 4

[0091] like Figure 5-Figure 6 As shown, this embodiment is further limited on the basis of embodiment 1. In this embodiment, it also includes an aging bin 21 and a feeding device 22. The feeding device 22 can transport the material processed by the fermentation tank 1 to the aging bin 21. The aging bin 21 is provided with a suction aeration head 25.

[0092] The suction aeration head 25 includes an outer tube 251 and an inner tube 252. The inner tube 252 is connected to the outer tube 251 through a connecting rod. The outer tube 251 is connected to an air inlet pipe 253. The air inlet pipe 253 is connected to an air inlet pipe 27. The air inlet pipe 27 is connected to the air outlet of a conveying fan 28.

[0093] One end of the inner tube 252 is connected to the discharge pipe 26, and the discharge pipe 26 is connected to the cyclone separator 23. The bottom end of the cyclone separator 23 is connected to the air shut-off discharger 24. The cyclone separator 23 can absorb materials and discharge them to the air shut-off discharger 24. The top of the cyclone separator 23 is connected to the separator exhaust pipe 29. The air inlet pipe of the conveying fan 28 is connected to the separator exhaust pipe 29 and the external air pipe 30 at the same time. The separator exhaust pipe 29 is provided with a separator exhaust valve, and the external air pipe 30 is provided with an external air valve.

[0094] The air-locking unloader 24 is provided with a discharge pipe, and a discharge valve is provided at the discharge pipe.

[0095] In this embodiment, the aging bin 21 is used to store materials processed in the fermentation tank 1. By providing a suction aeration head 25, when aeration is performed, the separator exhaust valve is closed and the external air valve is opened. Air enters the air inlet pipe 27 through the conveying fan 28, then enters the air inlet pipe 253 from the air inlet pipe 27, and then enters the outer pipe 251, thereby achieving aeration in the aging bin 21.

[0096] When discharging the material from the aging bin 21, open the separator exhaust valve, close the external air valve, and open the cyclone separator 23. The material enters the cyclone separator 23 from the inner tube 252 and the discharge pipe 26, and falls to the air shut-off unloader 24 to be discharged from the cyclone separator 23. The gas enters the conveying fan 28 through the separator exhaust pipe 29, and is then transported to the air inlet pipe 27, and enters the air inlet pipe 253 from the air inlet pipe 27, and enters the outer tube 251 from the air inlet pipe 253 to fluidize the material, making it easier for the inner tube 252 to absorb the material.

[0097] This embodiment also includes a suction aeration head traction mechanism that can pull the suction aeration head 25 to move within the aging bin 21. The discharge pipe 26 and the air inlet pipe 27 are both flexible hoses that flexibly extend through the side wall of the aging bin 21. This suction aeration head traction mechanism is provided in this embodiment to drive the suction aeration head 25 to move around, achieving roving aeration within the aging bin 21 and improving the aeration effect.

[0098] In this embodiment, the suction aeration head traction mechanism includes more than two traction winches 31, which are distributed around the aging bin 21. The traction winches 31 are connected to ropes 32, and the ropes 32 pass through the side walls of the aging bin 21 and are connected to the suction aeration head 25.

[0099] In this embodiment, the traction mechanism of the suction aeration head includes at least one traction winch 31 . The traction winch 31 is connected to a rope 32 , and the rope 32 is connected to the suction aeration head 25 .

[0100] For example, in this embodiment, two traction hoists 31 or four traction hoists 31 may be provided.

[0101] Specifically, when there are two traction winches 31 , the two traction winches 31 are located on the left and right sides of the aging bin 21 . The two traction winches 31 pull the ropes 32 to move, thereby driving the suction aeration head 25 to perform linear motion.

[0102] Specifically, when there are four traction winches 31 , the four traction winches 31 are distributed in the front, back, left and right of the aging bin 21 , and the ropes 32 are pulled to move, thereby driving the suction aeration head 25 to move.

[0103] In this embodiment, a hanging ring is connected to the outer tube 251 of the suction aeration head 25, and the rope 32 is connected to the hanging ring. In this embodiment, a hanging ring is provided for connecting the rope 32.

[0104] In this embodiment, an input hole and a discharge hole are provided on the discharge pipe at the bottom of the air-locking discharger. The input hole is connected to the conveying fan 33, and the discharge hole is connected to the feed pipe 34, and the feed pipe 34 is connected to the aging bin 21.

[0105] The bottom of the air-off unloader has a discharge pipe with a discharge valve. When unloading, the discharge valve is opened and the material is discharged from the discharge pipe. When it is found that the discharged material does not meet the requirements, the discharge valve is closed and the conveying fan 2 33 is started to blow the material back into the aging bin 21 through the feed pipe 34.

[0106] Example 5

[0107] like Figure 7 As shown, this embodiment is further limited on the basis of Example 1. In this embodiment, it also includes an aging bin 21 and a feeding device 22. The feeding device 22 can transport the material processed by the fermentation tank 1 to the aging bin 21. The aging bin 21 is provided with a material fluidizing device. The material fluidizing device includes a blowing pipe 35 and a material extraction pipe 37. The blowing pipe 35 is connected to the hair dryer, and the material extraction pipe 35 is connected to the extraction device.

[0108] The blowing main pipe 35 is connected to at least one blowing branch pipe 36, and the blowing branch pipe 36 has one or more blowing holes 39. The material extraction main pipe 37 is connected to at least one material extraction branch pipe 38, and the material extraction branch pipe 38 has one or more material extraction holes 40.

[0109] A blowing branch pipe 36 and a material extraction branch pipe 38 constitute a branch pipe unit, and a material extraction hole 40 and an air blowing hole 39 in a branch pipe unit constitute a fluidization unit. In a fluidization unit, the gas discharged from the air blowing hole 39 can fluidize the material, and the material extraction hole 40 can suck in the fluidized material.

[0110] This embodiment is a technical solution parallel to embodiment 4, which provides a new material fluidization method. Figure 5 In this embodiment, the pumping device is a negative pressure pumping device.

[0111] During operation, a blower is used to blow air into the main blower pipe 35. The air enters the branch blower pipe 36 and is discharged through the blower holes 39, thereby dispersing and fluidizing the material. The dispersed and fluidized material is then drawn through the extraction holes 40 into the extraction pipe 38, then into the main extraction pipe 37 and into the extraction device. This fluidization reduces the material density, prevents clogging, and facilitates discharge. The discharged material can be directly discharged, returned to the mixing system for remixing with new material, or returned to the fermentation tank for recirculation and fermentation.

[0112] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

Claims

1. A local fluidized aerobic fermentation system, characterized in that: The fermentation tank (1) comprises a fermentation tank (1), wherein an exhaust fan (9) is provided on the top of the fermentation tank (1), a plurality of ventilation pipes (2) are provided in the fermentation tank (1), the ventilation pipes (2) are arranged longitudinally, and a ventilation valve (3) is provided at the top of the ventilation pipes (2), a water inlet pipe (8) and an inner air inlet pipe (4) are provided in the fermentation tank (1), the plurality of ventilation pipes (2) are connected to and communicated with the water inlet pipe (8) at the same time, the water inlet pipe (8) is provided with a water inlet valve, the bottom ends of the plurality of ventilation pipes (2) are connected to and communicated with the inner air inlet pipe (4) at the same time, the inner air inlet pipe (4) is connected to an outer air inlet pipe (5), an air inlet valve is provided on the outer air inlet pipe (5), the outer air inlet pipe (5) is connected to an air inlet fan (10), a drainage hole is provided on the inner air inlet pipe (4), the drainage hole is connected to a water collecting box (6) through a pipeline, the water collecting box (6) is connected to a drainage pipe (7), and the drainage pipe (7) is provided with a drainage valve; The ventilation pipe (2) is provided with a plurality of ventilation holes (12), each of which is provided with a water retaining device. The water retaining device can prevent water in the ventilation pipe (2) from flowing out, and can allow the ventilation holes (12) to allow air to circulate inside and outside the ventilation pipe (2).

2. A local fluidized aerobic fermentation system according to claim 1, characterized in that: Also includes a horizontal screw conveyor (16) and a vertical screw conveyor (14); The vertical screw conveyor (14) comprises a lower pipe section (141), an upper pipe section (142), a vertical screw conveying rod (143) and a vertical screw rod driving motor (144); the lower pipe section (141) is installed at the bottom end of the fermentation tank (1); the upper pipe section (142) is located in the fermentation tank (1); the output shaft of the vertical screw rod driving motor (144) is connected to the vertical screw conveying rod (143); and the vertical screw conveying rod (143) passes through the lower pipe section (141) and the upper pipe section (142); The material delivery pipe (161) of the horizontal screw conveyor (16) is connected to the lower pipe section (141), and the horizontal screw conveyor (16) can deliver the material to the lower pipe section (141) and then deliver it to the fermentation tank (1) through the vertical screw conveying rod (143).

3. A local fluidized aerobic fermentation system according to claim 2, characterized in that: The top end of the vertical spiral conveying rod (143) is connected to two or more rotating material distribution rods (15).

4. A local fluidized aerobic fermentation system according to claim 2, characterized in that: The side wall of the lower pipe section (141) is provided with an air inlet hole 1 (1411) and an air inlet hole 2 (1412), and both the air inlet hole 1 (1411) and the air inlet hole 2 (1412) are connected to fans. When the vertical spiral conveying rod (143) rotates to make the material rise, the air inlet direction of the air inlet hole 1 (1411) is opposite to the rotation direction of the vertical spiral conveying rod (143). When the vertical spiral conveying rod (143) rotates to cause the material to descend, the air inlet direction of the second air inlet hole (1412) is opposite to the rotation direction of the vertical spiral conveying rod (143).

5. A local fluidized aerobic fermentation system according to claim 1, characterized in that: The fermentation tank (1) further comprises an aging bin (21) and a feeding device (22), wherein the feeding device (22) is capable of feeding the material processed in the fermentation tank (1) to the aging bin (21), and a material suction aeration head (25) is provided in the aging bin (21). The suction aeration head (25) includes an outer tube (251) and an inner tube (252), wherein the inner tube (252) is connected to the outer tube (251) via a connecting rod, and the outer tube (251) is connected to an air inlet pipe (253), wherein the air inlet pipe (253) is connected to an air inlet pipe (27), and the air inlet pipe (27) is connected to an air outlet of a conveying fan (28). One end of the inner tube (252) is connected to the discharge pipe (26), and the discharge pipe is connected to the cyclone separator (23). The bottom end of the cyclone separator (23) is connected to the air shut-off discharger (24). The cyclone separator (23) can absorb materials and discharge them to the air shut-off discharger (24). The top of the cyclone separator (23) is connected to the separator exhaust pipe (29). The air inlet pipe of the conveying fan (28) is connected to the separator exhaust pipe (29) and the external air pipe (30) at the same time. The separator exhaust pipe (29) is provided with a separator exhaust valve, and the external air pipe (30) is provided with an external air valve. The air-off discharger (24) is provided with a discharge pipe, and a discharge valve is provided at the discharge pipe.

6. A local fluidized aerobic fermentation system according to claim 5, characterized in that: The invention also includes a material suction aeration head traction mechanism, which can pull the material suction aeration head (25) to move in the aging bin (21). The discharge pipe (26) and the air inlet pipe (27) are both hoses, and both the discharge pipe (26) and the air inlet pipe (27) are movable through the side wall of the aging bin (21).

7. A local fluidized aerobic fermentation system according to claim 6, characterized in that: The material suction aeration head traction mechanism includes more than two traction winches (31), which are distributed around the aging bin (21). The traction winches (31) are connected to ropes (32), and the ropes (32) pass through the side walls of the aging bin (21) and are connected to the material suction aeration head (25).

8. A local fluidized aerobic fermentation system according to claim 7, characterized in that: A hanging ring is connected to the outer tube (251) of the material suction aeration head (25), and the rope (32) is connected to the hanging ring.

9. A local fluidized aerobic fermentation system according to claim 5, characterized in that: The discharge pipe is provided with an input hole and a discharge hole, the input hole is connected to the second conveying fan (33), the discharge hole is connected to the feed pipe (34), and the feed pipe (34) is connected to the aging bin (21).

10. The local fluidized aerobic fermentation system according to claim 1, characterized in that: The fermentation tank (1) further comprises an aging bin (21) and a feeding device (22), wherein the feeding device (22) is capable of feeding the material processed by the fermentation tank (1) to the aging bin (21), and a material fluidizing device is provided in the aging bin (21), wherein the material fluidizing device comprises a blowing pipe (35) and a material extraction pipe (37), wherein the blowing pipe (35) is connected to a blower, and the material extraction pipe (35) is connected to the material extraction device. The blowing main pipe (35) is connected to at least one blowing branch pipe (36), and the blowing branch pipe (36) has one or more blowing holes (39). The material extraction main pipe (37) is connected to at least one material extraction branch pipe (38), and the material extraction branch pipe (38) has one or more material extraction holes (40). A blowing branch pipe (36) and a material extraction branch pipe (38) constitute a branch pipe unit, and a material extraction hole (40) and an air blowing hole (39) in a branch pipe unit constitute a fluidization unit. In a fluidization unit, the gas discharged from the air blowing hole (39) can fluidize the material, and the material extraction hole (40) can suck in the fluidized material.

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