Pennisetum forage silage fermentation system

Abstract

The present invention relates to the technical field of Pennisetum silage, and in particular to a Pennisetum forage silage fermentation system, comprising a fermentation container, a gas sampling mechanism and a controller. During the rotation of the rotating ring of the gas sampling mechanism, when the telescopic rod, the matching cylinder and the matching column are coaxially arranged, the telescopic rod can push the pusher into the matching cylinder, thereby increasing the air pressure in the matching cylinder, and then opening the one-way valve, so that the gas in the matching cylinder enters the collection cavity. A distance sensor for detecting the distance between the pusher and the end face of the matching column is provided on the side of the pusher close to the matching column. The distance sensor and the detection component are both electrically connected to the controller, and the controller is used to determine the air pressure in the fermentation container according to the distance between the pusher and the end face of the matching column when the one-way valve is opened. It can realize continuous sampling and monitoring of the fermentation system during the silage process to ensure the smooth progress of the silage fermentation process.

Description

Technical Field

[0001] The invention relates to the technical field of Pennisetum silage, in particular to a Pennisetum forage silage fermentation system. Background Art

[0002] Forage silage is an effective means of extending forage shelf life and improving forage feeding efficiency. However, traditional forage silage practices often result in silage failure (rot and deterioration). Since silage is typically stored in large batches, this can easily lead to significant forage waste.

[0003] Since silage is usually carried out in batches and on a large scale, traditional manual monitoring is no longer applicable and it is easy for inadequate monitoring to occur.

[0004] In view of this, this application is hereby filed. Summary of the Invention

[0005] The object of the present invention is to provide a Pennisetum forage silage fermentation system, which can realize continuous sampling and monitoring of the fermentation system during the silage process to ensure the smooth progress of the silage fermentation process, facilitate timely treatment of the fermentation system with fermentation abnormalities, further reduce the loss of forage, and improve the utilization rate of forage.

[0006] The embodiment of the present invention is achieved as follows:

[0007] A Pennisetum forage silage fermentation system includes a fermentation container, a gas sampling mechanism, and a controller. The fermentation container has an opening at the top and a removable cover. The gas sampling mechanism is located inside the cover. The gas sampling mechanism includes a rotating ring, a mating cylinder, a telescopic assembly, and a mating column.

[0008] The rotating ring is rotatably coupled to the sealing cap and driven by a driver, wherein the rotating ring has an axis radially extending from the opening of the fermentation container. The axis of the matching cylinder is parallel to the axis of the rotating ring and is fixedly connected to the inner ring wall of the rotating ring.

[0009] The telescopic assembly and the mating column are located on opposite sides of the rotating ring. The telescopic rod of the telescopic assembly is arranged parallel to the rotating ring's axis of rotation and is fixedly connected to a pusher, the diameter of which matches the inner diameter of the mating cylinder. The mating column is coaxially arranged with the telescopic rod and has a collection cavity extending along its length. A collection hole is defined on the end wall of the mating column near the rotating ring, connected to the collection cavity. The collection hole is equipped with a one-way valve and a detection component for detecting whether the one-way valve is open.

[0010] During the rotation of the rotating ring, the mating cylinder is in a mating state. When the mating cylinder is in the mating state, the telescopic rod, mating cylinder, and mating column are coaxially arranged, and the end faces of the mating cylinder and mating column are in contact, so that the telescopic rod can push the pusher into the mating cylinder, thereby increasing the air pressure in the mating cylinder, thereby opening the one-way valve and allowing the gas in the mating cylinder to enter the collection cavity.

[0011] A distance sensor is provided on the side of the pusher adjacent to the mating column to detect the distance between the pusher and the end surface of the mating column. Both the distance sensor and the detection assembly are electrically connected to a controller, which determines the air pressure within the fermentation container based on the distance between the pusher and the end surface of the mating column when the one-way valve is open.

[0012] Furthermore, the one-way valve includes: a core body, a support bar and a baffle.

[0013] The support bars are fixedly connected to the outer wall of the core and extend along its length. Multiple support bars are evenly spaced along the circumference of the core. The core slides into the collection hole, abutting the wall of the collection hole via the support bars. A baffle is positioned perpendicular to the core and fixedly connected to the end of the core away from the rotating ring. The baffle is located within the collection cavity and has a diameter greater than that of the collection hole.

[0014] The detection component includes: a reference column, a conductive core and a detection circuit.

[0015] The reference post is positioned within the collection cavity and fixedly connected to the inner wall of the mating post. It is positioned axially along the collection hole. A gap is left between the reference post and the collection hole. A mating blind hole is defined on the end wall of the reference post near the collection hole, extending along its length. A conductive core slides within the mating blind hole. An elastic member abuts the conductive core against the bottom wall of the mating blind hole, and the conductive core abuts against the baffle.

[0016] A conductive contact is provided on the sidewall of the mating blind hole, positioned near the opening of the mating blind hole. The conductive contact is in contact with and electrically connected to the conductive core. The conductive contact is connected to one terminal of a detection circuit via a first wire, and the end of the conductive core away from the baffle is connected to the other terminal of the detection circuit via a second wire.

[0017] Furthermore, a sliding member is provided in the collection cavity, and a clearance hole is provided in the sliding member for the reference post to pass through. The sliding member slides and fits in the collection cavity along the length direction of the mating post, and a sliding seal is formed between the sliding member and the inner side wall of the mating post, and between the sliding member and the reference post.

[0018] A cylindrical collection liner is disposed on the side of the slider near the collection hole. One end of the collection liner is fixedly connected to the slider, and the end of the collection liner near the slider is sealed by the slider. The other end of the collection liner is fixedly connected to the inner end wall of the collection cavity near the collection hole, and the end of the collection liner away from the slider is sealed by the inner end wall of the collection cavity.

[0019] The slider is also equipped with a collection tube, located on the side of the slider away from the collection liner. The collection tube passes through the slider and is fixedly connected to the slider, communicating with the interior space of the collection liner. The collection tube is made of a flexible material. The end of the collection tube away from the slider is led out from the end of the mating post away from the rotating ring and further extends outside the cover.

[0020] Furthermore, the thickness of the sliding member is greater than the distance between the reference column and the collecting hole.

[0021] Furthermore, a groove is provided on the inner end wall of the collecting cavity near the rotating ring, the collecting hole is provided in the groove, and the diameter of the groove is larger than the diameter of the baffle. When the one-way valve is closed, the baffle fits into the bottom of the groove.

[0022] Furthermore, the controller is used to determine the molar amount of the sample gas collected this time according to the distance between the pusher and the end surface of the matching column when the one-way valve is opened.

[0023] The Pennisetum forage silage fermentation system further includes: an air supply component for supplying a corresponding amount of inert gas into the fermentation container according to the molar amount of the sample gas.

[0024] Furthermore, the Pennisetum forage silage fermentation system further includes: a pressing plate and a stop block.

[0025] The pressing plate is a mesh plate, which is placed in the fermentation container to compact the silage raw materials in the fermentation container.

[0026] The stop block is detachably fitted to the inner wall of the fermentation container and has a distance therebetween from the mouth of the fermentation container. The stop block abuts against one side of the pressing plate close to the mouth of the fermentation container to limit the pressing plate within the fermentation container.

[0027] The beneficial effects of the technical solutions of the embodiments of the present invention include:

[0028] The Pennisetum forage silage fermentation system provided in the embodiment of the present invention can not only determine whether the silage process is qualified by automatically sampling the gas in the fermentation container, but also verify and validate the gas pressure in the fermentation container to ensure the safety of the silage process.

[0029] In general, the Pennisetum forage silage fermentation system provided in the embodiments of the present invention can realize continuous sampling and monitoring of the fermentation system during the silage process to ensure the smooth progress of the silage fermentation process, facilitate timely processing of fermentation systems with fermentation abnormalities, further reduce forage losses, and improve forage utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0031] Figure 1 A schematic diagram of the overall structure of a Pennisetum forage silage fermentation system provided in an embodiment of the present invention;

[0032] Figure 2 This is a schematic diagram of the external structure of the gas sampling mechanism;

[0033] Figure 3 Schematic diagram of the internal structure of the gas sampling mechanism;

[0034] Figure 4 It is a structural diagram of the rotating ring and the matching cylinder;

[0035] Figure 5 A schematic diagram of the structure of the matching column;

[0036] Figure 6 Schematic diagram of the cooperation between the core and support bar of the one-way valve.

[0037] Description of reference numerals:

[0038] Fermentation container 100; cover 110; gas sampling mechanism 200; rotating ring 210; matching cylinder 220; telescopic assembly 230; telescopic rod 231; pushing member 232; matching column 240; collecting cavity 241; collecting hole 242; extension port 243; one-way valve 300; core 310; support bar 320; baffle 330; detection assembly 400; reference column 410; matching blind hole 420; conductive contact 430; conductive core 440; elastic member 450; first wire 460; second wire 470; sliding member 500; collecting liner 510; collecting tube 520; pressing plate 600; stop block 700. DETAILED DESCRIPTION

[0039] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0040] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0041] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0042] The terms “first”, “second”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0043] Furthermore, the terms "parallel" and "perpendicular" do not necessarily mean that the components must be absolutely parallel or perpendicular, but rather that they can be slightly tilted. For example, "parallel" simply means that the direction is more parallel than "perpendicular," not that the structure must be completely parallel, but rather that it can be slightly tilted.

[0044] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0045] In order to overcome the defects in the prior art, please refer to Figures 1-6 This embodiment provides a Pennisetum forage silage fermentation system, which includes: a fermentation container 100, a gas sampling mechanism 200 and a controller (not shown in the figure).

[0046] The fermentation container 100 is used to place silage raw materials for silage fermentation.

[0047] The top of the fermentation container 100 has an opening and is detachably fitted with a sealing cover 110 . The gas sampling mechanism 200 is disposed inside the sealing cover 110 .

[0048] The gas sampling mechanism 200 includes a rotating ring 210 , a matching cylinder 220 , a telescopic assembly 230 and a matching column 240 .

[0049] The rotating ring 210 is rotatably coupled to the sealing cap 110 and is driven by a driver (not shown). The rotation axis of the rotating ring 210 is radially aligned with the opening of the fermentation container 100. The axis of the mating cylinder 220 is parallel to the rotation axis of the rotating ring 210 and is fixedly connected to the inner wall of the rotating ring 210.

[0050] The rotation axis of the rotating ring 210 coincides with the central axis thereof. Along the length direction of the central axis of the rotating ring 210 , the telescopic assembly 230 and the matching column 240 are disposed on opposite sides of the rotating ring 210 .

[0051] The telescopic rod 231 of the telescopic assembly 230 is arranged parallel to the rotation axis of the rotating ring 210 and is fixedly connected to a pusher 232. The shape of the pusher 232 is the same as the cross-sectional shape of the internal space of the matching cylinder 220, and the diameter of the pusher 232 is adapted to the inner diameter of the matching cylinder 220.

[0052] The mating column 240 is coaxially arranged with the telescopic rod 231 and defines a collection cavity 241 extending along the length of the mating column 240. A collection hole 242 is defined on the end wall of the mating column 240, near the rotating ring 210, and communicates with the collection cavity 241. The collection cavity 242 houses a one-way valve 300 and a detection assembly 400 for detecting whether the one-way valve 300 is open. The one-way valve 300 is normally closed and can be opened from the collection cavity 241 toward the collection cavity 241, thereby connecting the collection cavity 242 with the collection cavity 241.

[0053] In this embodiment, when the telescopic rod 231 is in the retracted state, the distance between the pushing member 232 and the engaging post 240 is greater than or equal to the length of the engaging cylinder 220. Optionally, the distance between the pushing member 232 and the engaging post 240 is equal to the length of the engaging cylinder 220. In other words, a space is left between the pushing member 232 and the engaging post 240 for the engaging cylinder 220 to pass through.

[0054] During the rotation of the rotating ring 210 , the matching cylinder 220 moves along with the rotation of the rotating ring 210 . During the movement of the matching cylinder 220 , the matching cylinder 220 periodically enters a matching state.

[0055] When the mating cylinder 220 is in the mating state, the telescopic rod 231, the mating cylinder 220, and the mating post 240 are coaxially arranged, and the end faces of the mating cylinder 220 and the mating post 240 are in contact, i.e., the mating post 240 now seals the end of the mating cylinder 220 away from the telescopic mechanism. At this point, the telescopic mechanism controls the telescopic rod 231 to extend, causing the telescopic rod 231 to push the pusher 232 into the mating cylinder 220. A sliding seal is formed between the pusher 232 and the mating cylinder 220. As the pusher 232 passes through the mating cylinder 220 and approaches the mating post 240, the gas within the mating cylinder 220 is continuously compressed, and the air pressure within the mating cylinder 220 continuously increases. When the air pressure reaches a threshold that allows the one-way valve 300 to open, the one-way valve 300 is successfully pushed open, allowing the gas within the mating cylinder 220 to enter the collection cavity 241 through the collection hole 242. When the gas in the matching cylinder 220 is fully delivered to the collecting cavity 241, the one-way valve 300 is reset, and the gas is sealed in the collecting cavity 241. In this way, a sampling of the gas in the fermentation container 100 is completed.

[0056] The gas collected in the collection cavity 241 can be discharged through a pipeline for detection and analysis, so that technicians can judge whether the silage process is qualified by analyzing the changes in gas components during the silage process, and facilitate timely detection of abnormal conditions in the fermentation process.

[0057] A distance sensor (not shown) is provided on the side of the pusher 232 near the mating post 240 for detecting the distance between the pusher 232 and the end surface of the mating post 240. Both the distance sensor and the detection assembly 400 are electrically connected to a controller, which determines the air pressure within the fermentation container 100 based on the distance between the pusher 232 and the end surface of the mating post 240 when the one-way valve 300 is open.

[0058] Specifically, since the pressure required to open the one-way valve 300 is constant, when the one-way valve 300 is first pushed open, the gas pressure within the mating cylinder 220 is immediately equal to the threshold pressure. At this point, based on the current spacing between the pusher 232 and the end surface of the mating column 240, as well as the initial spacing between the pusher 232 and the end surface of the mating column 240, the degree of compression (compression ratio) of the gas within the mating cylinder 220 when the threshold pressure is reached can be determined. This can then be used to reversely calculate the pressure of the gas within the mating cylinder 220 when it is uncompressed, which is equal to the gas pressure within the fermentation vessel 100.

[0059] Through the above design, not only can the gas in the fermentation container 100 be automatically sampled to determine whether the ensiling process is qualified, but the gas pressure in the fermentation container 100 can also be verified and validated to ensure the safety of the ensiling process.

[0060] Optionally, the distance sensor may be a laser ranging sensor, but is not limited thereto.

[0061] It should be noted that during the silage fermentation process, the time interval for gas sampling can be flexibly adjusted according to actual needs. In the interval between each sampling, the rotating ring 210 can be controlled to rotate continuously, which is conducive to disturbing the gas in the fermentation container 100 with the help of the matching cylinder 220, ensuring the uniformity of the gas, thereby improving the reliability of the sampling, and also helping the gas in the matching cylinder 220 to maintain a high degree of consistency with the gas in the fermentation container 100, thereby reducing the sampling error.

[0062] In general, the Pennisetum forage silage fermentation system provided in this embodiment can realize continuous sampling and monitoring of the fermentation system during the silage process to ensure the smooth progress of the silage fermentation process, facilitate timely treatment of fermentation systems with fermentation abnormalities, further reduce forage losses, and improve forage utilization.

[0063] The Pennisetum forage silage fermentation system further includes a pressing plate 600 and a stop block 700 .

[0064] The pressing plate 600 is a mesh plate, and is used to be placed in the fermentation container 100 to compact the silage material in the fermentation container 100 .

[0065] The stopper 700 is detachably fitted to the inner wall of the fermentation container 100 and is spaced apart from the opening of the fermentation container 100. The stopper 700 abuts against a side of the pressing plate 600 near the opening of the fermentation container 100 to restrict the pressing plate 600 within the fermentation container 100.

[0066] The gas sampling mechanism 200 is spaced apart from the pressing plate 600 .

[0067] Specifically in this embodiment, the one-way valve 300 includes a core 310 , a support bar 320 and a baffle 330 .

[0068] The support bars 320 are fixedly connected to the outer wall of the core 310 and extend along the length of the core 310. Multiple support bars 320 are evenly spaced along the circumference of the core 310. The core 310 slides into the collection hole 242, and the core 310 is in contact with the hole wall of the collection hole 242 through the support bars 320.

[0069] The baffle 330 is arranged perpendicular to the core 310 and fixedly connected to one end of the core 310 away from the rotating ring 210 . The baffle 330 is located in the collection cavity 241 . The diameter of the baffle 330 is larger than the diameter of the collection hole 242 .

[0070] The detection assembly 400 includes a reference post 410 , a conductive core 440 and a detection circuit (not shown).

[0071] The reference post 410 is disposed in the collection cavity 241 and fixedly connected to the inner wall of the matching post 240. The reference post 410 is disposed axially along the collection hole 242. The collection hole 242, matching post 240, collection cavity 241 and reference post 410 are coaxially disposed.

[0072] A gap is left between the reference post 410 and the collection hole 242. A matching blind hole 420 is defined on the end wall of the reference post 410, near the collection hole 242. The matching blind hole 420 extends along its length. A conductive core 440 slidably fits within the matching blind hole 420. The diameter of the conductive core 440 matches the aperture of the matching blind hole 420. An elastic member 450 abuts the bottom wall of the conductive core 440 and the matching blind hole 420. In its natural state, the elastic member 450 forces the conductive core 440 to abut against the baffle 330, which in turn abuts against the inner end wall of the collection cavity 241, thereby keeping the one-way valve 300 in a normally closed state.

[0073] A conductive contact 430 is provided on the sidewall of the mating blind hole 420. The conductive contact 430 is positioned near the opening of the mating blind hole 420 and is in contact with and electrically connected to the conductive core 440. The conductive contact 430 is connected to one terminal of the detection circuit via a first wire 460. The end of the conductive core 440, away from the baffle 330, is connected to the other terminal of the detection circuit via a second wire 470.

[0074] The baffle 330 , the elastic member 450 , and the reference column 410 are all made of insulating materials.

[0075] When the one-way valve 300 is open, the baffle 330 pushes the conductive core 440 into the mating blind hole 420, causing the conductive contact 430 to move relatively closer to the end of the conductive core 440 that is closest to the baffle 330. This increases the length of the conductive core 440 actually connected to the detection circuit, thereby increasing the resistance. Therefore, the openness of the one-way valve 300 can be determined by monitoring the current or total resistance of the detection circuit, but the present invention is not limited thereto.

[0076] Furthermore, a sliding member 500 is disposed within the collection cavity 241. The sliding member 500 defines a clearance hole for the reference post 410 to pass through. The sliding member 500 slidably fits within the collection cavity 241 along the length of the mating post 240, creating a sliding seal between the sliding member 500 and the inner sidewall of the mating post 240, and between the sliding member 500 and the reference post 410.

[0077] A collection liner 510 is located on the side of the slider 500 near the collection hole 242. This liner 510 is made of a flexible material and, in its natural state, is cylindrical. One end of the liner 510 is fixedly connected to the slider 500, and the end of the liner 510 near the slider 500 is sealed by the slider 500. The other end of the liner 510 is fixedly connected to the inner end wall of the collection cavity 241 near the collection hole 242, and the end of the liner 510 away from the slider 500 is sealed by the inner end wall of the collection cavity 241.

[0078] The collecting liner 510 can be compressed by sliding the sliding member 500 toward the end where the collecting hole 242 is located.

[0079] The sliding member 500 is also equipped with a collecting pipe 520. The collecting pipe 520 is located on a side of the sliding member 500 away from the collecting liner 510. The collecting pipe 520 passes through the sliding member 500 and is fixedly connected to the sliding member 500. The collecting pipe 520 is communicated with the inner space of the collecting liner 510.

[0080] The collection tube 520 is made of a flexible material. The end of the collection tube 520, away from the slider 500, is led out from the end of the mating post 240 away from the rotating ring 210 and further extends outside the cover 110 (when leading outside the cover 110, airtightness must be ensured). The outer end of the collection tube 520 can be connected to a gas collector or gas analysis device to collect and analyze the collected gas samples.

[0081] The collecting hole 242 is also connected to the inner space of the collecting liner 510. The end surface of the mating column 240 away from the collecting hole 242 is provided with an extension port 243 for the collecting tube 520 to extend out. The diameter of the extension port 243 is larger than the diameter of the collecting tube 520.

[0082] When the gas in the matching cylinder 220 is pushed into the collection cavity 241 from the collection hole 242, the gas enters the collection liner 510, the collection liner 510 expands and pushes the sliding member 500 to the end away from the collection hole 242, thereby realizing gas collection.

[0083] After the gas is collected, the one-way valve 300 returns to its original position and closes, trapping the gas in the collection liner 510. The gas can then be extracted directly through the collection tube 520. During this extraction process, as the gas is extracted, the pressure in the collection liner 510 decreases, causing the slider 500 to gradually slide toward the collection hole 242 and return to its original position.

[0084] Optionally, the thickness of the sliding member 500 is greater than the distance between the reference column 410 and the collecting hole 242 .

[0085] Optionally, the collecting cavity 241 is provided with a groove near the inner end wall of the rotating ring 210, and the collecting hole 242 is provided in the groove, and the diameter of the groove is larger than the diameter of the baffle 330. When the one-way valve 300 is closed, the baffle 330 is attached to the bottom of the groove.

[0086] Furthermore, the controller is used to determine the molar amount of the sample gas collected this time (calculated based on the gas pressure and the volume of the matching cylinder 220 ) according to the distance between the pusher 232 and the end surface of the matching column 240 when the one-way valve 300 is opened.

[0087] The Pennisetum forage silage fermentation system further includes: an air supply component (not shown in the figure) for supplying a corresponding amount of inert gas into the fermentation container 100 according to the molar amount of the sample gas.

[0088] In this way, the air pressure in the fermentation container 100 can be kept stable, and even if sampling is performed multiple times, the internal air pressure will not be affected, which is conducive to maintaining the safety of the fermentation container 100.

[0089] In summary, the Pennisetum forage silage fermentation system provided in the embodiment of the present invention can realize continuous sampling and monitoring of the fermentation system during the silage process to ensure the smooth progress of the silage fermentation process, facilitate timely processing of the fermentation system with fermentation abnormalities, further reduce the loss of forage, and improve the utilization rate of forage.

[0090] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A Pennisetum forage silage fermentation system, characterized in that: include: A fermentation container, a gas sampling mechanism, and a controller; the top of the fermentation container has an opening and is detachably fitted with a sealing cover, and the gas sampling mechanism is disposed inside the sealing cover; the gas sampling mechanism comprises: a rotating ring, a fitting cylinder, a telescopic assembly, and a fitting column; The rotating ring is rotatably coupled to the sealing cover and driven by a driver, and the rotation axis of the rotating ring is arranged along the radial direction of the opening of the fermentation container; the axis of the mating cylinder is arranged parallel to the rotation axis of the rotating ring, and the mating cylinder is fixedly connected to the inner ring wall of the rotating ring; The telescopic assembly and the matching column are respectively arranged on opposite sides of the rotating ring; the telescopic rod of the telescopic assembly is arranged parallel to the rotation axis of the rotating ring and is fixedly connected to a pusher, the diameter of the pusher is adapted to the inner diameter of the matching cylinder; the matching column is coaxially arranged with the telescopic rod, and the matching column has a collecting inner cavity, which extends along the length direction of the matching column; the end wall of the matching column close to the rotating ring is provided with a collecting hole connected to the collecting inner cavity, and the collecting hole is equipped with a one-way valve and a detection component for detecting whether the one-way valve is open; During the rotation of the rotating ring, the mating cylinder is in a mating state; when the mating cylinder is in the mating state, the telescopic rod, the mating cylinder, and the mating post are coaxially arranged, and the end surfaces of the mating cylinder and the mating post are in contact with each other, so that the telescopic rod can push the pushing member into the mating cylinder, thereby increasing the air pressure in the mating cylinder, thereby opening the one-way valve, and allowing the gas in the mating cylinder to enter the collecting cavity; A distance sensor for detecting the distance between the pushing member and the end face of the matching column is provided on the side of the pushing member close to the matching column; the distance sensor and the detection component are both electrically connected to the controller, and the controller is used to determine the air pressure in the fermentation container based on the initial distance between the pushing member and the end face of the matching column, the distance between the pushing member and the end face of the matching column when the one-way valve is opened, and the threshold pressure when the one-way valve is just pushed open.

2. The Pennisetum forage silage fermentation system according to claim 1, characterized in that: The one-way valve comprises: a core, a support bar and a baffle; The support bars are fixedly connected to the outer wall of the core body and extend along the length direction of the core body, and a plurality of the support bars are evenly spaced along the circumference of the core body; the core body is slidably fitted into the collection hole, and the core body is in contact with the hole wall of the collection hole through the support bars; the baffle is arranged perpendicular to the core body and fixedly connected to the end of the core body away from the rotating ring, the baffle is located in the collection cavity, and the diameter of the baffle is larger than the diameter of the collection hole; The detection assembly includes: a reference column, a conductive core and a detection circuit; The reference post is arranged in the collection cavity and fixedly connected to the inner wall of the matching post. The reference post is arranged along the axial direction of the collection hole. A gap is left between the reference post and the collection hole. A matching blind hole is opened on the end wall of the reference post close to the collection hole. The matching blind hole extends along its length. The conductive core is slidably fitted in the matching blind hole. An elastic member abuts between the conductive core and the bottom wall of the matching blind hole. The conductive core abuts against the baffle. A conductive contact is provided on the side wall of the mating blind hole, and the conductive contact is provided near the mouth of the mating blind hole. The conductive contact is in contact with and electrically connected to the conductive core; the conductive contact is connected to one pole of the detection circuit by a first wire, and the end of the conductive core away from the baffle is connected to the other pole of the detection circuit by a second wire.

3. The Pennisetum forage silage fermentation system according to claim 2, characterized in that: A sliding member is provided in the collecting inner cavity, and a clearance hole is provided on the sliding member for the reference column to pass through; along the length direction of the matching column, the sliding member is slidably fitted in the collecting inner cavity, and a sliding seal is formed between the sliding member and the inner side wall of the matching column, and between the sliding member and the reference column; A collecting liner is provided on one side of the sliding member close to the collecting hole, and the collecting liner is cylindrical; one end of the collecting liner is fixedly connected to the sliding member, and the end of the collecting liner close to the sliding member is closed by the sliding member; the other end of the collecting liner is fixedly connected to the inner end wall of the collecting cavity close to the collecting hole, and the end of the collecting liner away from the sliding member is closed by the inner end wall of the collecting cavity; The sliding member is also equipped with a collection tube, which is located on the side of the sliding member away from the collection liner. The collection tube passes through the sliding member and is fixedly connected to the sliding member. The collection tube is communicated with the internal space of the collection liner; the collection tube is made of flexible material, and the end of the collection tube away from the sliding member is led out by the end of the matching column away from the rotating ring, and further extends to the outside of the cover.

4. The Pennisetum forage silage fermentation system according to claim 3, characterized in that: The thickness of the sliding member is greater than the distance between the reference column and the collecting hole.

5. The Pennisetum forage silage fermentation system according to claim 3, characterized in that: The collecting cavity is provided with a groove near the inner end wall of the rotating ring, the collecting hole is provided in the groove, and the diameter of the groove is larger than the diameter of the baffle; when the one-way valve is closed, the baffle is attached to the bottom of the groove.

6. The Pennisetum forage silage fermentation system according to claim 3, characterized in that: The controller is used to determine the molar amount of the sample gas collected this time according to the distance between the pusher and the end surface of the matching column and the gas pressure when the one-way valve is opened; The Pennisetum forage silage fermentation system further includes: an air supply component; the air supply component is used to supply a corresponding amount of inert gas into the fermentation container according to the molar amount of the sample gas.

7. The Pennisetum forage silage fermentation system according to claim 1, characterized in that: The Pennisetum forage silage fermentation system further includes: a pressing plate and a stop block; The pressing plate is a mesh plate, and the pressing plate is used to be placed in the fermentation container to compact the silage material in the fermentation container; The stop block is detachably fitted to the inner wall of the fermentation container and has a distance between it and the mouth of the fermentation container; the stop block abuts against the side of the pressing plate close to the mouth of the fermentation container to limit the pressing plate within the fermentation container.

Images