Pig feed producing, processing and fermenting device and method

Abstract

The invention belongs to the technical field of biological fermentation equipment, and particularly relates to a pig feed producing, processing and fermenting device and method.The pig feed producing, processing and fermenting device comprises a base, a fixing ring is fixedly connected to the upper surface of the base, and two first sealing bearings are fixedly connected to the inner wall of the fixing ring; the inner walls of the inner rings of the two first sealing bearings are fixedly connected with a fermentation tank, and an opening of the fermentation tank is in sealed connection with a sealing mechanism through bolts. The fermentation device for producing and processing the pig feed has the function of quickly forming an anaerobic environment in the fermentation tank, the content of anaerobic microorganisms in the initial stage of fermentation processing is increased by retaining a fermentation substrate of the pig feed, the hysteresis stage of proliferation of the anaerobic microorganisms is shortened, the fermentation processing efficiency of the pig feed is improved, and the production cost of the pig feed is reduced. And the device also has an anti-blocking function in the process of automatically discharging the pig feed, so that the use reliability of the device is improved, and the labor intensity of workers is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of biological fermentation equipment, and in particular relates to a pig feed production, processing and fermentation device and method. Background Art

[0002] In the current pig farming industry, finished pig feed has become the main source of pig feed due to its advantages such as balanced nutritional components and convenient storage and transportation. However, during the production process of finished pig feed, some nutrients (such as vitamins and enzymes) are destroyed due to high-temperature granulation and long-term storage. In addition, the high cost makes it difficult to meet the diverse nutritional needs of pigs at different growth stages. In addition, preservatives, antibiotics and other substances that may be added to finished pig feed not only increase the metabolic burden of pigs, but may also cause drug residues, affecting pork quality and food safety. Therefore, on the basis of feeding finished pig feed, the combination of freshly fermented pig feed from crops has become an important supplementary means to improve breeding efficiency and pork quality. Freshly fermented pig feed from crops is feed made from fresh crops (such as corn stalks, sweet potato vines, silage corn, etc.) through a microbial fermentation process. For example, the patent with authorization announcement number CN117801929B discloses a pig feed fermentation device.

[0003] When using current pig feed fermentation equipment, it takes a long time for crops to ferment into pig feed in the fermentation tank. This is because after the fermentation tank is sealed, it relies on the natural oxygen consumption of microorganisms to create an anaerobic environment. This process usually takes several hours or even longer, greatly delaying the metabolic initiation of anaerobic microorganisms. At the same time, anaerobic microorganisms need to go through the process of adapting to the environment and then proliferating in large quantities in the initial stage. Their slow growth cycle further prolongs the overall fermentation time, which in turn seriously affects the efficiency of pig feed processing based on crop fermentation. In addition, when the existing pig feed fermentation device discharges the fermented pig feed, since the fermented pig feed contains a high proportion of solid matter and is often accompanied by viscous fermentation products (such as polysaccharides), it is very easy to accumulate and compact at the outlet during the discharge process, thereby causing blockage. Once blockage occurs, it needs to be cleared in time by staff, which not only affects the reliability of the pig feed production and processing fermentation device, but also increases the labor intensity of the staff.

[0004] To this end, we propose a pig feed production, processing and fermentation device and method to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a pig feed production, processing and fermentation device and method in response to the above problems.

[0006] To achieve the above objectives, the present invention adopts the following technical solutions: A pig feed production, processing and fermentation device, comprising a base, a fixing ring fixedly connected to the upper surface of the base, two first sealed bearings fixedly connected to the inner wall of the fixing ring, a fermentation tank fixedly connected to the inner walls of the inner rings of the two first sealed bearings, and a sealing mechanism sealed at the opening of the fermentation tank via bolts; The outer wall of the fermentation tank located inside the fixed ring is provided with a plurality of through holes, and the hole walls of the through holes are fixedly connected to ceramic breathable blocks, and the outer walls of the fermentation tank and the plurality of ceramic breathable blocks are jointly fixedly sleeved with a waterproof breathable membrane sleeve; A discharge mechanism is fixedly connected to the side wall of the fermentation tank; The bottom end of the base is fixedly connected to a driving motor, and the output end of the driving motor passes through the base and is fixedly connected to an auxiliary mechanism; The top outer wall of the fixing ring is fixedly connected with a positioning mechanism.

[0007] In the above-mentioned pig feed production, processing and fermentation device, the sealing mechanism includes a first end cover that is sealed with the open end of the fermentation tank, the side end of the first end cover is threadedly and sealed with the second end cover, the inner wall of the second end cover is provided with an air intake groove, the groove wall of the air intake groove is fixedly connected with a plurality of air intake one-way valves, the groove wall of the air intake groove is fixedly connected with an air permeable plate, the outer wall of the air permeable plate is fixedly connected with a carbon dioxide air permeable membrane, and the outer wall of the second end cover is fixedly connected with a rotating handle.

[0008] In the above-mentioned pig feed production, processing and fermentation device, the discharge mechanism includes a bevel gear ring fixedly connected to the side wall of the fermentation tank and a second sealed bearing, the inner wall of the inner ring of the second sealed bearing is fixedly connected to the outer cylinder, the side wall of the fermentation tank is provided with a movable through hole, and the hole wall of the movable through hole is sealed and slidably connected to the inner cylinder, and the side end of the inner cylinder is fixedly connected to the push plate.

[0009] In the above-mentioned pig feed production, processing and fermentation device, a circular hole is opened on the side wall of the inner cylinder, and the hole wall of the circular hole is sealed and movably connected to a guide rod, one end of the guide rod is fixedly connected to the inner wall of the outer cylinder, and the other end of the guide rod is in movably contact with the side wall of the push plate.

[0010] In the above-mentioned pig feed production, processing and fermentation device, the auxiliary mechanism includes a rotating rod fixedly connected to the output end of the driving motor, the top of the rotating rod is fixedly installed with a helical gear meshing with the helical gear ring through an overload protection coupling, the rod wall of the rotating rod is fixedly sleeved with an air guide volute, the rod wall of the rotating rod is fixedly sleeved with an air suction impeller matching the air guide volute, the bottom end of the air guide volute is fixedly connected to the upper surface of the base, the upper surface of the base is provided with an annular groove for air intake at the air inlet end of the air guide volute, and the annular groove The groove wall is fixedly connected to a first air pipe, the air inlet end of the first air pipe passes through the lower surface of the base and is fixedly connected to a first control valve, the air outlet end of the air guide volute is fixedly connected to a third air pipe, the air outlet end of the third air pipe is fixedly connected to an air outlet three-way reversing solenoid valve, the top port of the air outlet three-way reversing solenoid valve is fixedly connected to the outer cylinder, the outer wall of the outer cylinder is fixedly connected to a second control valve, the air outlet end of the second control valve is fixedly connected to a fourth air pipe, and the groove wall of the annular groove at the bottom end of the fourth air pipe is fixedly connected.

[0011] In the above-mentioned pig feed production, processing and fermentation device, the wall of the first air pipe is fixedly connected to the second air pipe, and the air inlet end of the second air pipe is fixedly connected to the exhaust three-way reversing solenoid valve, and the top air inlet end of the exhaust three-way reversing solenoid valve passes through the base and the inner wall of the fixed ring.

[0012] In the above-mentioned pig feed production, processing and fermentation device, the positioning mechanism includes a PLC controller fixedly connected to the outer wall of the fixed ring, the outer wall of the fixed ring is fixedly embedded with an electric push rod, the bottom end of the electric push rod is fixedly connected to a rubber block, and the bottom end of the rubber block is provided with an arc groove.

[0013] A fermentation method for a pig feed production and processing fermentation device, the method comprising the following steps: Step S1: During the pig feed fermentation production process, the second end cover is first opened, and the raw materials for pig feed fermentation processing are fed into the fermentation tank. Then, the second end cover is closed, and oxygen-containing air in the fermentation tank is sucked out through the auxiliary mechanism, the discharge mechanism, and the drive motor. At the same time, the negative pressure environment in the fermentation tank sucks gas through the carbon dioxide breathable membrane and the air inlet one-way valve to balance the air pressure. The carbon dioxide breathable membrane can preferentially allow carbon dioxide to enter, thereby diluting the oxygen content in the fermentation tank, so that the fermentation tank quickly achieves an anaerobic environment; Step S2: While reducing the oxygen content in the fermentation tank in step S1, the fermentation tank is also controlled to rotate. The rotation of the fermentation tank can prevent the internal raw materials from being compacted and inconvenient for fermentation processing, thereby increasing the fermentation processing speed of the microorganisms and raw materials; Step S3: When the fermentation of the pig feed in the fermentation tank is completed, the second end cover is first opened, and the auxiliary mechanism, the positioning mechanism, and the discharge mechanism are controlled by the PLC controller. The movable end of the electric push rod in the positioning mechanism moves downward to push the rubber block to squeeze the fermentation tank, so that the rotation of the fermentation tank is paused to prevent the rotation of the fermentation tank from interfering with the discharge of the pig feed. Then, the auxiliary mechanism injects air into the outer cylinder, and the air pushes the inner cylinder and the push plate to move. The push plate pushes the fermented pig feed in the fermentation tank to be discharged smoothly. Step S4: In step S3, due to the size limitation of the pusher plate, the pig feed at the bottom of the fermentation tank is not discharged and serves as the fermentation substrate for the next raw material fermentation; Step S5: In step S4, the retention period of the fermentation substrate can be set according to the specific fermentation process. After one retention period is completed, the first end cover needs to be opened to fully clean the fermentation tank.

[0014] Compared with existing technologies, the advantages of a pig feed production, processing and fermentation device and method are: Through the provided drive motor, sealing mechanism, waterproof breathable membrane cover and fermentation tank, during the pig feed fermentation production process, the second end cover is first opened, and the raw materials for pig feed fermentation processing are fed into the fermentation tank, and then the second end cover is closed. At this time, the PLC controller controls the drive motor and the exhaust three-way reversing solenoid valve to work. After the exhaust three-way reversing solenoid valve is energized, the position of the exhaust end changes, so that the exhaust three-way reversing solenoid valve can be connected to the inside of the fixed ring. Then, the oxygen-containing air in the fermentation tank is sucked through the drive motor, waterproof breathable membrane cover and auxiliary mechanism, and the fermentation tank is in a negative pressure environment. Then, the carbon dioxide breathable membrane in the fermentation tank sucks carbon dioxide-rich air to balance the air pressure in the fermentation tank, and the oxygen content of the air in the fermentation tank is diluted by carbon dioxide, so that an anaerobic environment is quickly achieved in the fermentation tank, thereby promoting the proliferation of anaerobic microorganisms and improving the efficiency of raw material fermentation processing.

[0015] By providing the second end cover, drive motor, auxiliary mechanism and discharge mechanism, when the fermentation of the pig feed in the fermentation tank is completed, the second end cover is first opened, and the drive motor and auxiliary mechanism are controlled by the PLC controller to inject air into the outer cylinder. The increase in air in the outer cylinder will push the inner cylinder to move into the fermentation tank, and at the same time, the inner cylinder pushes the push plate to move, and the push plate pushes the fermented pig feed in the fermentation tank to be discharged. Due to the thrust of the push plate, the blockage of the pig feed at the first end cover can be avoided, and there is no need for staff to clear the blockage, which saves time and effort. This mechanism enables the device to not only have the function of automatically discharging pig feed, but also has the function of preventing pig feed from being blocked, thereby improving the reliability of the device and reducing the labor intensity of the staff.

[0016] By setting the auxiliary mechanism, fermentation tank and push plate, due to the size limitation of the push plate, the pig feed at the bottom of the fermentation tank is not discharged and serves as the fermentation substrate for the next raw material fermentation. This is because there are a large number of anaerobic microorganisms inside the fermentation substrate, which can effectively reduce the proliferation time required for anaerobic microorganisms during the initial fermentation of the raw materials and reduce the lag period of anaerobic microorganism proliferation. In addition, the retention period of the fermentation substrate can be set according to the specific fermentation process. After a retention period is completed, it is necessary to open the first end cover to fully clean the fermentation tank to avoid the fermentation substrate from drying out due to the deterioration of the fermentation environment after multiple retentions. The activity of anaerobic microorganisms is disturbed, thereby affecting the efficiency of pig feed fermentation processing. When the pig feed in the fermentation tank is discharged and new raw materials are added, the PLC controller controls the drive motor and auxiliary mechanism to suck the air in the outer cylinder, so that a negative pressure environment is formed in the outer cylinder. The negative pressure suction force causes the inner cylinder to retract. The retraction process can expose the space in the fermentation tank, so that the raw materials can be easily stored in the fermentation tank. This mechanism enables the device to increase the content of anaerobic microorganisms in the early stage of fermentation processing by retaining the pig feed fermentation substrate, shorten the lag period of anaerobic microorganism proliferation, and further improve the efficiency of pig feed fermentation processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a pig feed production, processing and fermentation device and method provided by the present invention; Figure 2 yes Figure 1 Schematic diagram of the cross-sectional structure; Figure 3 yes Figure 2 Schematic diagram of the structure of the auxiliary mechanism; Figure 4 yes Figure 2 Schematic diagram of the structure of the middle sealing mechanism; Figure 5 yes Figure 2 Structural diagram of the positioning mechanism; Figure 6 yes Figure 2 Schematic diagram of the structure of the carbon dioxide breathable membrane part.

[0018] In the figure: 1 base, 2 fixing ring, 3 first sealing bearing, 4 fermentation tank, 5 sealing mechanism, 51 first end cover, 52 second end cover, 53 air inlet groove, 54 air inlet one-way valve, 55 breathable plate, 56 carbon dioxide breathable membrane, 57 rotating handle, 6 ceramic breathable block, 7 discharge mechanism, 71 helical gear ring, 72 second sealing bearing, 73 outer cylinder, 74 inner cylinder, 75 push plate, 8 auxiliary mechanism, 81 rotating rod, 82 helical gear, 83 air guide volute, 84 suction impeller, 85 annular groove, 86 first air pipe, 87 first control valve, 88 third air pipe, 89 outlet three-way reversing solenoid valve, 810 second control valve, 811 fourth air pipe, 9 positioning mechanism, 91 PLC controller, 92 electric push rod, 93 rubber block, 94 arc groove, 10 waterproof breathable membrane sleeve, 11 drive motor, 12 guide rod, 13 second air pipe, 14 exhaust three-way reversing solenoid valve. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] like Figures 1-6 As shown, a pig feed production, processing and fermentation device includes a base 1, a fixing ring 2 is fixedly connected to the upper surface of the base 1, two first sealing bearings 3 are fixedly connected to the inner wall of the fixing ring 2, a fermentation tank 4 is fixedly connected to the inner wall of the inner ring of the two first sealing bearings 3, the opening of the fermentation tank 4 is sealed with a sealing mechanism 5 by bolts, the sealing mechanism 5 includes a first end cover 51 that is sealed with the open end of the fermentation tank 4, the side end of the first end cover 51 is threadedly sealed with the second end cover 52, an air intake groove 53 is opened on the inner wall of the second end cover 52, a plurality of air intake one-way valves 54 are fixedly connected to the groove wall of the air intake groove 53, an air permeable plate 55 is fixedly connected to the groove wall of the air intake groove 53, a carbon dioxide breathable membrane 56 is fixedly connected to the outer wall of the air permeable plate 55, and a rotating handle 57 is fixedly connected to the outer wall of the second end cover 52.

[0021] The outer wall of the fermentation tank 4 located inside the fixed ring 2 is provided with a plurality of through holes, and the hole walls of the through holes are fixedly connected to a ceramic breathable block 6. The outer walls of the fermentation tank 4 and the plurality of ceramic breathable blocks 6 are fixedly sleeved with a waterproof breathable membrane sleeve 10. The ceramic breathable block 6 is breathable and prevents pig feed from damaging the waterproof breathable membrane sleeve 10, thereby improving the protection of the waterproof breathable membrane sleeve 10. The side wall of the fermentation tank 4 is fixedly connected to a discharge mechanism 7. The discharge mechanism 7 includes a bevel gear ring 71 fixedly connected to the side wall of the fermentation tank 4 and a second sealed bearing 72. The inner ring inner wall of the second sealed bearing 72 is fixedly connected to an outer cylinder 73. A movable through hole is provided on the side wall of the fermentation tank 4, and the hole wall of the movable through hole is sealed and slidably connected to the inner cylinder 74, and the side end of the inner cylinder 74 is fixedly connected to the push plate 75. A circular hole is provided on the side wall of the inner cylinder 74, and the hole wall of the circular hole is sealed and movably connected to the guide rod 12. One end of the guide rod 12 is fixedly connected to the inner wall of the outer cylinder 73, and the other end of the guide rod 12 is movably contacted with the side wall of the push plate 75. This mechanism increases the content of anaerobic microorganisms in the initial stage of fermentation processing by retaining the fermentation substrate of pig feed, shortens the lag period of anaerobic microorganism proliferation, and improves the efficiency of pig feed fermentation processing.

[0022] The bottom end of the base 1 is fixedly connected to a drive motor 11, the output end of the drive motor 11 passes through the base 1 and is fixedly connected to an auxiliary mechanism 8, the auxiliary mechanism 8 includes a rotating rod 81 fixedly connected to the output end of the drive motor 11, the top of the rotating rod 81 is fixedly installed with a helical gear 82 meshing with the helical gear ring 71 through an overload protection coupling, the rod wall of the rotating rod 81 is fixedly sleeved with an air guide volute 83, the rod wall of the rotating rod 81 is fixedly sleeved with an intake impeller 84 that cooperates with the air guide volute 83, the bottom end of the air guide volute 83 is fixedly connected to the upper surface of the base 1, the upper surface of the base 1 is provided with an annular groove 85 for air intake at the air intake end of the air guide volute 83, and the groove wall of the annular groove 85 is fixedly connected to a first air pipe 86, the air inlet end of the first air pipe 86 passes through the lower surface of the base 1, and is fixedly connected to a first control valve 87, the air outlet end of the air guide volute 83 is fixedly connected to a third air pipe 88, and the third air pipe 88 The air outlet end is fixedly connected to an air outlet three-way reversing solenoid valve 89, the top port of the air outlet three-way reversing solenoid valve 89 is fixedly connected to the outer cylinder 73, the outer wall of the outer cylinder 73 is fixedly connected to the second control valve 810, the air outlet end of the second control valve 810 is fixedly connected to the fourth air pipe 811, the groove wall of the bottom annular groove 85 of the fourth air pipe 811 is fixedly connected, the pipe wall of the first air pipe 86 is fixedly connected to the second air pipe 13, the air inlet end of the second air pipe 13 is fixedly connected to the exhaust three-way reversing solenoid valve 14, the top air inlet end of the exhaust three-way reversing solenoid valve 14 passes through the base 1 and the inner wall of the fixed ring 2. This mechanism enables the pig feed production and processing fermentation device to not only have the function of quickly forming an anaerobic environment in the fermentation tank 4, thereby improving the efficiency of pig feed fermentation processing, but also has an anti-blocking function during the automatic discharge of pig feed by the device, thereby improving the reliability of the device and reducing the labor intensity of the staff.

[0023] A positioning mechanism 9 is fixedly connected to the outer wall of the top end of the fixed ring 2. The positioning mechanism 9 includes a PLC controller 91 fixedly connected to the outer wall of the fixed ring 2. An electric push rod 92 is fixedly embedded in the outer wall of the fixed ring 2. A rubber block 93 is fixedly connected to the bottom end of the electric push rod 92. An arc groove 94 is provided at the bottom end of the rubber block 93. This mechanism can improve the reliability of the device in automatically discharging pig feed.

[0024] The first control valve 87, the outlet three-way reversing solenoid valve 89, the second control valve 810, the electric push rod 92, the drive motor 11 and the exhaust three-way reversing solenoid valve 14 are all electrically connected to the output end of the PLC controller 91 through wires. The input end of the PLC controller 91 can also be connected to an external control panel for easy control of the device. The above-mentioned power-on devices and electrical connections are all existing technologies and will not be repeated here.

[0025] The operating principle of the present invention is described as follows: During the pig feed fermentation production process, the second end cover 52 is first opened, and the raw materials for pig feed fermentation processing (such as corn stalks, sweet potato vines and silage corn) are fed into the fermentation tank 4, and then the second end cover 52 is closed. At this time, the PLC controller 91 controls the drive motor 11 and the exhaust three-way reversing solenoid valve 14 to work. At the same time, the power-on time of the exhaust three-way reversing solenoid valve 14 can be set to 3 minutes. After the exhaust three-way reversing solenoid valve 14 is energized, the position of the air outlet end changes, so that the exhaust three-way reversing solenoid valve 14 can be connected to the inside of the fixed ring 2, and the drive motor 11 drives the rotation The rod 81 rotates, and the rotating rod 81 not only drives the bevel gear 82 to rotate, but also drives the suction impeller 84 to rotate. The bevel gear 82 drives the fermentation tank 4 to rotate slowly in the two first sealed bearings 3 through the bevel gear ring 71. The rotation of the fermentation tank 4 can avoid the internal raw materials from being compacted and inconvenient for fermentation processing, thereby improving the fermentation processing speed of microorganisms and raw materials. After the suction impeller 84 rotates, it cooperates with the air guide volute 83 to suck the gas in the annular groove 85. The sucked gas is discharged through the third air pipe 88 and the lateral port of the air outlet three-way reversing solenoid valve 89, so that the annular groove 85 forms a negative pressure environment. The annular groove 85 in the negative pressure environment is discharged through the first air pipe 86 and the third air pipe 87. The two air pipes 13 and the exhaust three-way reversing solenoid valve 14 suck the air in the fixed ring 2, and the fixed ring 2 in the negative pressure environment sucks the oxygen-containing air in the fermentation tank 4 through the waterproof breathable membrane and the ceramic breathable block 6, and the fermentation tank 4 is in a negative pressure environment. Then the negative pressure environment in the fermentation tank 4 sucks the carbon dioxide-rich air through the air inlet one-way valve 54, the air inlet groove 53, the breathable plate 55 and the carbon dioxide breathable membrane 56 to balance the air pressure in the fermentation tank 4. The carbon dioxide breathable membrane 56 can preferentially allow carbon dioxide to pass through the air inlet groove 53, and dilute the oxygen content of the air in the fermentation tank 4 through carbon dioxide, so that the fermentation tank 4 quickly achieves an anaerobic environment, promoting The proliferation of anaerobic microorganisms improves the efficiency of raw material fermentation processing. After 3 minutes, the exhaust three-way reversing solenoid valve 14 is powered off by the PLC controller 91 and restored to its original outlet direction. At this time, the lateral port of the exhaust three-way reversing solenoid valve 14 can be connected to the waste gas treatment equipment, so that the waste gas generated during the pig feed fermentation process is discharged into the waste gas treatment equipment through the ceramic breathable block 6, the waterproof breathable membrane sleeve 10 and the exhaust three-way reversing solenoid valve 14, thereby avoiding the occurrence of waste gas indiscriminate discharge and pollution of the environment. This mechanism enables the pig feed production and processing fermentation device to quickly form an oxygen-free environment in the fermentation tank 4, thereby improving the efficiency of pig feed fermentation processing; When the fermentation of the pig feed in the fermentation tank 4 is completed, the second end cover 52 is first opened, and the first control valve 87, the electric push rod 92 and the air outlet three-way reversing solenoid valve 89 are energized through the PLC controller 91. After the electric push rod 92 is energized, the moving end pushes the rubber block 93 to squeeze the rotating fermentation tank 4. The fermentation tank 4 stops rotating due to the squeezing force, and at this time the bevel gear 82 and the bevel gear ring 71 no longer rotate, but the rotating rod 81 can still rotate normally with the cooperation of the overload protection coupling. After the air outlet three-way reversing solenoid valve 89 is energized, the position of the air outlet end is changed and gas is injected into the outer cylinder 73. At this time, the driving motor 11 drives the rotating rod 81, the suction impeller 84, the air guide volute 83, the first The air pipe 86 and the first control valve 87 draw in external air, and the air is injected into the outer cylinder 73 through the third air pipe 88 and the top port of the air outlet three-way reversing solenoid valve 89. The increase in air in the outer cylinder 73 pushes the inner cylinder 74 to move into the fermentation tank 4. At the same time, the inner cylinder 74 pushes the push plate 75 to move, and the push plate 75 pushes the fermented pig feed in the fermentation tank 4 to discharge. Due to the thrust of the push plate 75, the pig feed at the first end cover 51 can be prevented from being blocked when being discharged, and there is no need for staff to clear the blockage, saving time and effort. This mechanism enables the device to not only have the function of automatically discharging pig feed, but also has the function of preventing pig feed from being blocked, thereby improving the reliability of the device and reducing the labor intensity of staff. Due to the size limitation of the push plate 75, the pig feed at the bottom of the fermentation tank 4 is not discharged and serves as the fermentation substrate for the next raw material fermentation (the amount of the fermentation substrate can be one-fifth of the total amount of pig feed in the fermentation tank 4. This amount of fermentation substrate will not excessively affect the fermentation processing volume of the pig feed, and also ensures that the next batch of pig feed fermentation has sufficient anaerobic microorganisms). This is because the fermentation substrate contains a large number of anaerobic microorganisms, which can effectively reduce the proliferation time required for anaerobic microorganisms during the initial fermentation of the raw materials and reduce the lag period of anaerobic microorganism proliferation. In addition, the retention period of the fermentation substrate can be set according to the specific fermentation process (such as 10 days). After a retention period is completed, the first end cover 51 needs to be opened to thoroughly clean the fermentation tank 4 to avoid interference with the activity of anaerobic microorganisms due to deterioration of the fermentation environment (such as unqualified pH and breeding of other harmful bacteria) after the fermentation substrate is retained for multiple times, thereby affecting the efficiency of the pig feed fermentation processing; When the pig feed in the fermentation tank 4 is discharged and new raw materials are added, the PLC controller 91 de-energizes and closes the first control valve 87 and the outlet three-way reversing solenoid valve 89, and controls the second control valve 810 to open. Then, the rotating suction impeller 84 cooperates with the air guide volute 83 to suck the air in the outer cylinder 73 through the annular groove 85, the fourth air pipe 811 and the second control valve 810. At this time, the air is discharged through the third air pipe 88 and the lateral port of the outlet three-way reversing solenoid valve 89, and the outer cylinder 73 is in a negative pressure environment. The inner cylinder 74 is reset under the suction of the negative pressure environment. The reset process can expose the space inside the fermentation tank 4, so that the raw materials can be easily stored in the fermentation tank 4. When the raw materials are replenished and the second end cover 52 is sealed, the PLC controller 91 controls the second control valve 810 to be de-energized and closed, and the fermentation processing step of the pig feed is carried out. This mechanism enables the device to increase the content of anaerobic microorganisms in the initial stage of the fermentation process by retaining the pig feed fermentation substrate, shorten the lag period of anaerobic microorganism proliferation, and further improve the efficiency of the pig feed fermentation process.

[0026] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A pig feed production, processing and fermentation device, comprising a base (1), characterized in that: The upper surface of the base (1) is fixedly connected to a fixing ring (2), the inner wall of the fixing ring (2) is fixedly connected to two first sealing bearings (3), the inner ring inner walls of the two first sealing bearings (3) are fixedly connected to a fermentation tank (4), and the opening of the fermentation tank (4) is sealed and connected to a sealing mechanism (5) via bolts; The outer wall of the fermentation tank (4) located inside the fixed ring (2) is provided with a plurality of through holes, and the hole walls of the through holes are fixedly connected to ceramic breathable blocks (6), and the outer walls of the fermentation tank (4) and the plurality of ceramic breathable blocks (6) are fixedly sleeved with a waterproof breathable membrane sleeve (10); A discharge mechanism (7) is fixedly connected to the side wall of the fermentation tank (4); The bottom end of the base (1) is fixedly connected to a driving motor (11), and the output end of the driving motor (11) passes through the base (1) and is fixedly connected to an auxiliary mechanism (8); A positioning mechanism (9) is fixedly connected to the outer wall of the top end of the fixing ring (2).

2. A pig feed production, processing and fermentation device according to claim 1, characterized in that: The sealing mechanism (5) comprises a first end cap (51) sealedly connected to the open end of the fermentation tank (4); the side end of the first end cap (51) is threadedly and sealedly connected to the second end cap (52); the inner wall of the second end cap (52) is provided with an air inlet groove (53); the groove wall of the air inlet groove (53) is fixedly connected to a plurality of air inlet one-way valves (54); the groove wall of the air inlet groove (53) is fixedly connected to a breathable plate (55); the outer wall of the breathable plate (55) is fixedly connected to a carbon dioxide breathable membrane (56); and the outer wall of the second end cap (52) is fixedly connected to a rotating handle (57).

3. A pig feed production, processing and fermentation device according to claim 2, characterized in that: The discharge mechanism (7) comprises a bevel gear ring (71) and a second sealed bearing (72) fixedly connected to the side wall of the fermentation tank (4); the inner wall of the inner ring of the second sealed bearing (72) is fixedly connected to an outer cylinder (73); a movable through hole is opened in the side wall of the fermentation tank (4); and the hole wall of the movable through hole is sealingly and slidably connected to an inner cylinder (74); and a side end of the inner cylinder (74) is fixedly connected to a push plate (75).

4. A pig feed production, processing and fermentation device according to claim 3, characterized in that: A circular hole is formed in the side wall of the inner cylinder (74), and a guide rod (12) is movably connected to the hole wall of the circular hole in a sealed manner. One end of the guide rod (12) is fixedly connected to the inner wall of the outer cylinder (73), and the other end of the guide rod (12) is in movably contact with the side wall of the push plate (75).

5. The pig feed production, processing and fermentation device according to claim 4, characterized in that: The auxiliary mechanism (8) includes a rotating rod (81) fixedly connected to the output end of the driving motor (11), a helical gear (82) meshing with the helical gear ring (71) is fixedly installed on the top of the rotating rod (81) through an overload protection coupling, a rod wall of the rotating rod (81) is fixedly sleeved with an air guide volute (83), a rod wall of the rotating rod (81) is fixedly sleeved with an air suction impeller (84) matched with the air guide volute (83), the bottom end of the air guide volute (83) is fixedly connected to the upper surface of the base (1), the upper surface of the base (1) is provided with an annular groove (85) for air intake of the air intake end of the air guide volute (83), and the groove wall of the annular groove (85) is fixedly connected with a first air intake. The air inlet end of the first air pipe (86) passes through the lower surface of the base (1) and is fixedly connected to the first control valve (87). The air outlet end of the air guide volute (83) is fixedly connected to the third air pipe (88). The air outlet end of the third air pipe (88) is fixedly connected to the air outlet three-way reversing solenoid valve (89). The top port of the air outlet three-way reversing solenoid valve (89) is fixedly connected to the outer cylinder (73). The outer wall of the outer cylinder (73) is fixedly connected to the second control valve (810). The air outlet end of the second control valve (810) is fixedly connected to the fourth air pipe (811). The bottom end of the fourth air pipe (811) is fixedly connected to the groove wall of the annular groove (85).

6. The pig feed production, processing and fermentation device according to claim 5, characterized in that: The wall of the first air pipe (86) is fixedly connected to the second air pipe (13), the air inlet end of the second air pipe (13) is fixedly connected to the exhaust three-way reversing solenoid valve (14), and the top air inlet end of the exhaust three-way reversing solenoid valve (14) passes through the base (1) and the inner wall of the fixed ring (2).

7. The pig feed production, processing and fermentation device according to claim 6, characterized in that: The positioning mechanism (9) comprises a PLC controller (91) fixedly connected to the outer wall of the fixing ring (2); an electric push rod (92) is fixedly embedded in the outer wall of the fixing ring (2); a rubber block (93) is fixedly connected to the bottom end of the electric push rod (92); and an arc groove (94) is formed at the bottom end of the rubber block (93).

8. A fermentation method applied to the pig feed production and processing fermentation device according to claim 7, characterized in that: The method comprises the following steps: Step S1: During the pig feed fermentation production process, the second end cover (52) is first opened, and the raw materials for pig feed fermentation processing are fed into the fermentation tank (4), and then the second end cover (52) is closed. Thereafter, the oxygen-containing air in the fermentation tank (4) is sucked out through the auxiliary mechanism (8), the discharge mechanism (7) and the drive motor (11). At the same time, the negative pressure environment in the fermentation tank (4) is balanced by sucking gas through the carbon dioxide breathable membrane (56) and the air inlet one-way valve (54). The carbon dioxide breathable membrane (56) can preferentially allow carbon dioxide to enter, thereby diluting the oxygen content in the fermentation tank (4), so that the fermentation tank (4) quickly achieves an anaerobic environment; Step S2: while reducing the oxygen content in the fermentation tank (4) in step S1, the fermentation tank (4) is also controlled to rotate. The rotation of the fermentation tank (4) can prevent the internal raw materials from being compacted and inconvenient for fermentation processing, thereby increasing the fermentation processing speed of the microorganisms and raw materials; Step S3, when the fermentation of the pig feed in the fermentation tank (4) is completed, the second end cover (52) is first opened, and the auxiliary mechanism (8), the positioning mechanism (9) and the discharge mechanism (7) are controlled by the PLC controller (91), the moving end of the electric push rod (92) in the positioning mechanism (9) moves downward to push the rubber block (93) to squeeze the fermentation tank (4), so that the rotation of the fermentation tank (4) is suspended, and the rotation of the fermentation tank (4) is prevented from interfering with the discharge of the pig feed. Then, the auxiliary mechanism (8) injects air into the outer cylinder (73), and the air pushes the inner cylinder (74) and the push plate (75) to move, and the push plate (75) pushes the fermented pig feed in the fermentation tank (4) to be discharged smoothly; Step S4: In step S3, due to the size limitation of the pusher plate (75), the pig feed at the bottom of the fermentation tank (4) is not discharged and serves as the fermentation substrate for the next raw material fermentation; Step S5. In step S4, the fermentation substrate retention period can be set according to the specific fermentation process. After one retention period is completed, the first end cover (51) needs to be opened to fully clean the fermentation tank (4).

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