A simulated intestinal high-solid anaerobic digestion reactor with real-time solid-liquid separation function

Abstract

The present invention discloses a simulated intestinal high-solid anaerobic digestion reactor with a real-time solid-liquid separation function, comprising a plurality of reaction cylinders arranged in sequence along the vertical direction, the axis of each reaction cylinder being roughly arranged along the left-right direction and having an upward tilt angle, and the tilt angles of any two adjacent reaction cylinders are opposite, and in any two adjacent reaction cylinders, the feed port of the relatively lower reaction cylinder is connected to the discharge port of the relatively upper reaction cylinder through a connecting pipe, and the axial end cover of the feed end of each reaction cylinder is connected to a solid-liquid separation device. The semi-solid materials produced by liquefaction in the reaction cylinders of each stage automatically enter the solid-liquid separation device in the opposite direction under the action of gravity for solid-liquid separation, and the liquid produced by hydrolysis and liquefaction can be discharged from the reaction cylinder in time, so that the anaerobic digestion reactor always maintains a high solid content material level, is conducive to the turning of the solid material, and improves the utilization efficiency of the reactor.

Description

Technical Field

[0001] The present invention relates to the technical field of reactors, and in particular to a simulated intestinal high-solid anaerobic digestion reactor with a real-time solid-liquid separation function. Background Art

[0002] Anaerobic digestion is a relatively effective method for treating organic waste, addressing environmental pollution while also producing clean energy (biogas). Anaerobic digestion can be categorized as dry anaerobic digestion (TS>15%) or wet anaerobic digestion (TS<15%) based on total solids (TS) content. Compared to wet anaerobic digestion, dry fermentation offers advantages such as a higher load capacity per unit volume, lower energy consumption, higher efficiency of anaerobic fermentation biogas production, lower biogas slurry yields, and reduced secondary pollution. Currently, the main reactor types for anaerobic digestion of high-organic waste (dry anaerobic digestion) are vertical and horizontal. Pneumatic agitation in vertical reactors is difficult, complex, and requires high power. Single-shaft vertical mechanical agitation consumes a lot of energy and is extremely difficult to achieve. Horizontal reactors occupy a large floor space and have a low volume ratio. Furthermore, the reactors are long, leading to significant differences in the solids content of the materials before and after the reactor during fermentation. This results in significant differences in stirring resistance and torque, necessitating high agitator shaft strength.

[0003] In response to the problems existing in horizontal and vertical high-solid anaerobic digestion reactors, the Chinese patent CN113462536A applied by the applicant discloses a simulated intestinal high-solid organic material anaerobic digestion reactor. This new reactor has the appearance characteristics of being "vertical" as a whole and "horizontal" in part, simulating the digestive function of the intestine. The material can undergo different reaction stages in different reaction chambers during the process from feeding to discharging. According to the water content and viscosity of the material in each reaction stage, each reaction chamber is equipped with an independent stirring device to control the movement of the material. By combining the reaction chambers to form a simulated intestinal vertical reactor, the reaction time of the material in the reactor can be increased, the material can be fully reacted, and the requirements for the stirring device configured in each reaction chamber can be reduced. It has the advantages of high stirring efficiency, convenient discharging, and small footprint.

[0004] However, during the anaerobic digestion process, the material in the reactor continues to hydrolyze and liquefy, and the solid content gradually decreases, which will make it difficult to turn over the solid material. As the solid content continues to decrease, the solid content of the material will not reach more than 15%. At this time, the inside of the reactor is no longer dry anaerobic fermentation, which reduces the efficiency of the reactor. Summary of the Invention

[0005] An embodiment of the present invention provides a simulated intestinal high-solid content anaerobic digestion reactor with real-time solid-liquid separation function, which is used to solve the technical problem of the solid content gradually decreasing due to the continuous hydrolysis and liquefaction of the material during the anaerobic digestion process. The anaerobic digestion reactor can always maintain a high solid content material level, which is conducive to the turnover of the solid material and improves the utilization efficiency of the reactor.

[0006] In order to achieve the above-mentioned purpose of the invention, the present invention provides a simulated intestinal high-solid anaerobic digestion reactor with real-time solid-liquid separation function, comprising a plurality of reaction cylinders arranged in sequence along the vertical direction, wherein the axis of each reaction cylinder is roughly arranged in the left-right direction and has an upward tilt angle, that is, one of the left end and the right end of each reaction cylinder has a higher height than the other end, that is, the height of the left end of each reaction cylinder is higher than the height of its right end or the height of its right end is higher than the height of its left end, and the tilt angles of any two adjacent reaction cylinders are opposite, that is, in any two adjacent reaction cylinders, When the left end of the reaction cylinder located relatively above is higher than the right end, the right end of the reaction cylinder located relatively below is higher than the left end, or when the right end of the reaction cylinder located relatively above is higher than the left end, the left end of the reaction cylinder located relatively below is higher than the right end, the higher end of the left and right ends of each reaction cylinder is used as the discharge end, and the lower end is used as the feed end. A feed port is provided on the cylindrical side wall of the feed end, and a discharge port is provided on the cylindrical side wall of the discharge end. In any two adjacent reaction cylinders, the feed port of the reaction cylinder located relatively below is connected to the discharge port of the reaction cylinder located relatively above through a connecting pipe.

[0007] The axial end cap of the feed end of each reaction cylinder is connected to a solid-liquid separation device, which includes a solid-liquid separation press and a screw conveying device. The axial end cap of the feed end is provided with a solid-liquid separation discharge port and a solid-liquid separation return port. The solid-liquid separation discharge port is located at the lower part of the axial end cap. The feed port of the solid-liquid separation press is connected to the solid-liquid separation discharge port. The solid material discharge port of the solid-liquid separation press is connected to the solid-liquid separation return port via a screw conveying device. The liquid material discharge port of the solid-liquid separation press is used to discharge the liquid material after solid-liquid separation. The location of the solid-liquid separation return port on the axial end cap is not limited. It can be provided at the upper part of the axial end cap, or it can be provided at the lower part or middle part of the axial end cap.

[0008] Under the action of gravity, the semi-solid material in the reaction cylinder flows through the solid-liquid separation outlet into the solid-liquid separation press. After the non-uniform material passes through the solid-liquid separation device, the liquid portion is discharged through the liquid material outlet of the solid-liquid separation press, while the solid portion is returned to the reaction cylinder through the solid-liquid separation return port via a screw conveyor. This increases the solid content of the material in the reaction cylinder and effectively stirs the material. It is understood that not all material passes through the press for solid-liquid separation; only the semi-solid material that flows into the press by gravity is squeezed. Compared to large-scale presses, this solid-liquid separation device consumes less energy.

[0009] Optionally, the angle between the axis of each reaction cylinder and the horizontal plane is α, 0°<α≤10°. The angle α is adjusted according to the fluid properties of the material. When the solid content of the material is low, the inclination angle is small, and vice versa.

[0010] Preferably, each reaction cylinder is provided with a stirring device. Further optionally, the stirring device includes a stirring motor and a stirring shaft, a stirring paddle is provided on the stirring shaft, the stirring shaft is coaxially arranged with the reaction cylinder, both ends of the stirring shaft are rotatably mounted on the reaction cylinder via bearings, the stirring motor is fixedly mounted on the outer wall of the reaction cylinder, and the output shaft of the stirring motor is mechanically connected to one end of the stirring shaft, such as by a coupling or a gear transmission connection. Further optionally, the stirring paddle is configured as a rod and fixedly mounted on the circumferential side wall of the stirring shaft, or in other embodiments, the stirring paddle is configured as a spiral blade.

[0011] Further preferably, the reaction cylinder is equipped with a rotating scraper, which is also fixedly mounted on the stirring shaft and driven to rotate by the stirring shaft. The rotating scraper is close to the inner wall of the axial end cover of the feed end. During the rotation process, it passes through the solid-liquid separation discharge port and the solid-liquid separation return port to scrape the solid-liquid separation discharge port and the solid-liquid separation return port to prevent the material from clogging the solid-liquid separation discharge port and the solid-liquid separation return port.

[0012] The above structure of the present invention enables the multiple reaction cylinders to be connected in series in sequence along the material conveying direction, and the reaction cylinders are staggered in the head and tail directions, so that all the reaction cylinders are connected in series in a "bow" or "Z" shape.

[0013] Preferably, the connecting pipe extends in a vertical direction to facilitate material discharge.

[0014] Optionally, the reaction cylinder is a cylindrical structure made of rolled metal, and the stirring device inside the reaction cylinder has no dead angle during the stirring process.

[0015] Alternatively, the reaction cylinder is a square cylindrical structure. Specifically, the square cylindrical structure can be made of a metal material. Alternatively, the square cylindrical structure is made of other materials (such as building materials) and a resin lining coating is provided on its inner surface.

[0016] In operation, material is added through the feed port of the top reaction cylinder. It enters the reactor through the feed port and, driven by the agitator, the accumulation and compression of the newly added material, or by the rotation of the paddles, propels it horizontally forward. As the material fully reacts, it also flows toward the discharge port and, through a connecting pipe, into the next reaction cylinder. While the reaction continues in the next reaction cylinder, the agitator also flows toward the discharge port of that next reaction cylinder, where it continues to react, and so on, until the residue after the reaction flows out of the discharge port of the bottom reaction cylinder. The agitator ensures full contact between the material and the anaerobic microorganisms and propels the material along the reaction cylinder toward the discharge port. The agitator's speed varies depending on the reaction stage of the material within the local reaction zone and can be individually controlled to suit the material properties and fermentation requirements of each tank. After the reaction is complete, the material is discharged through the discharge port. The material follows a "bow" motion throughout the reactor, flowing through each reaction cylinder in sequence.

[0017] Each stirring device is set independently of each other, so it is easy to configure the power and size. According to the water content and viscosity of the material in each reaction stage, a suitable stirring device can be configured, the rotation speed can be adjusted separately, and the material movement cycle can be controlled. At the same time, since the reaction space is divided into multiple reaction cylinders, the size of each reaction cylinder is reduced, and the requirements for the stirring device configured for it are also reduced, thereby achieving cost reduction and efficiency improvement. In addition, the setting of multiple reaction cylinders also allows the reaction stages of the material to be reasonably distributed in different reaction cylinders, and different reaction stages are experienced in different reaction cylinders. Therefore, the material flows through each reaction cylinder in turn, allowing the material to stay in the device for a sufficient time, making the material reaction more sufficient.

[0018] One or more technical solutions in the embodiments of the present invention have at least the following technical effects or advantages:

[0019] Each reaction cylinder of the simulated intestinal-type anaerobic digestion reactor for high-organic-content materials is tilted along the direction of material movement. Under the action of gravity, the semi-solid material produced by liquefaction in each reaction cylinder automatically enters the solid-liquid separation device for solid-liquid separation in the opposite direction of the solid material movement. The system has low energy consumption, simple operation, and low cost. Liquid produced by hydrolysis and liquefaction can be promptly discharged from the reaction cylinder, ensuring that the anaerobic digestion reactor always maintains a high solids content, facilitating solid material turnover and improving reactor utilization efficiency.

[0020] The solid-liquid separation device provided by the present invention returns the separated solid part to the reactor nearby, which reduces energy consumption compared with transporting the separated solid material over a long distance to the front end for return.

[0021] At the feed end of each reaction cylinder of the reactor, each reaction cylinder is individually equipped with a small solid-liquid separation press. Each solid-liquid separation press independently separates the solid and liquid of the material, and effectively improves the solid content according to the different properties of the materials in each reaction cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 Schematic diagram of the structure of the simulated intestinal anaerobic digestion reactor with high content of organic matter and solid-liquid separation function of the present invention;

[0023] Figure 2 This is a side view of the structure schematic diagram of the solid-liquid separation device of the present invention installed in a simulated intestinal anaerobic digestion reactor with high content of inherent organic matter;

[0024] Figure 3 This is another side view of a structural schematic diagram of the solid-liquid separation device of the present invention installed in a simulated intestinal anaerobic digestion reactor with high content of inherent organic matter. DETAILED DESCRIPTION

[0025] 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. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0026] An embodiment of the present invention provides a simulated intestinal high-solid content anaerobic digestion reactor with real-time solid-liquid separation function, which is used to solve the technical problem of the solid content gradually decreasing due to the continuous hydrolysis and liquefaction of the material during the anaerobic digestion process. The anaerobic digestion reactor can always maintain a high solid content material level, which is conducive to the turnover of the solid material and improves the utilization efficiency of the reactor.

[0027] Specifically, such as Figure 1 、 Figure 2 As shown, the simulated intestinal high-solid anaerobic digestion reactor with real-time solid-liquid separation function includes a plurality of reaction cylinders 1.1 arranged in sequence along the vertical direction, and the axis of each reaction cylinder 1.1 is roughly arranged along the left-right direction and has an upward tilt angle, that is, the height of one of the left end and the right end of each reaction cylinder 1.1 is higher than the height of the other end, that is, the height of the left end of each reaction cylinder 1.1 is higher than the height of its right end or the height of its right end is higher than the height of its left end, and the tilt angles of any two adjacent reaction cylinders 1.1 are opposite, that is, among any two adjacent reaction cylinders 1.1, when the height of the reaction cylinder 1.1 located relatively above is When the left end is higher than the right end, the right end of the reaction cylinder 1.1 located relatively below is higher than the left end, or when the right end of the reaction cylinder 1.1 located relatively above is higher than the left end, the left end of the reaction cylinder 1.1 located relatively below is higher than the right end. The higher end of the left and right ends of each reaction cylinder 1.1 is used as the discharge end, and the lower end is used as the feed end. A feed port 1.4 is provided on the cylindrical side wall of the feed end, and a discharge port 1.5 is provided on the cylindrical side wall of the discharge end. In any two adjacent reaction cylinders 1.1, the feed port 1.4 of the reaction cylinder 1.1 located relatively below is connected to the discharge port 1.5 of the reaction cylinder 1.1 located relatively above via a connecting pipe 1.2.

[0028] The axial end cover of the feed end of each reaction cylinder 1.1 is connected to a solid-liquid separation device, and the solid-liquid separation device includes a solid-liquid separation press 2.2 and a screw conveying device 2.4. The axial end cover of the feed end is provided with a solid-liquid separation discharge port and a solid-liquid separation return port. The solid-liquid separation discharge port is located at the lower part of the axial end cover. The feed port of the solid-liquid separation press 2.2 is connected to the solid-liquid separation discharge port. The solid material discharge port of the solid-liquid separation press 2.2 is connected to the solid-liquid separation return port through the screw conveying device 2.4. The liquid material discharge port 2.3 of the solid-liquid separation press 2.2 is used to discharge the liquid material after solid-liquid separation. The setting position of the solid-liquid separation return port on the axial end cover is not limited. Figure 2 As shown, it can be set on the upper part of the axial end cover, or as shown in Figure 3 As shown, it can be arranged at the lower part of the axial end cover, and of course it can also be arranged at the middle part of the axial end cover.

[0029] Each reaction cylinder 1.1 is fixedly installed by a supporting device, and the supporting device can be a frame, a support, a connecting frame and other structures, which are not limited.

[0030] The semi-solid material in the reaction cylinder 1.1 flows by gravity through the solid-liquid separation outlet into the solid-liquid separation press 2.2 for solid-liquid separation. After the non-uniform material passes through the solid-liquid separation device, the liquid portion is discharged from the liquid material outlet 2.3 of the solid-liquid separation press 2.2 for separate treatment, and the solid portion is returned to the reaction cylinder 1.1 through the solid-liquid separation return port via the screw conveying device 2.4. In some embodiments, the screw conveying device 2.4 is connected to the solid-liquid separation return port via the solid return pipe 2.5. As a result, the solid content of the material in the reaction cylinder 1.1 is increased, and the material stirring effect is sufficient. It is understandable that not all materials pass through the press for solid-liquid separation. Only the semi-solid material that flows into the press by gravity is squeezed. Compared with large presses, the energy consumption of this set of solid-liquid separation devices is relatively low.

[0031] Optionally, the angle between the axis of each reaction cylinder 1.1 and the horizontal plane is α, 0°<α≤10°. The angle α is adjusted according to the fluid properties of the material. When the solid content of the material is low, the tilt angle is small, and vice versa.

[0032] Preferably, each reaction cylinder 1.1 is provided with a stirring device 1.3. Further optionally, the stirring device 1.3 includes a stirring motor and a stirring shaft, a stirring paddle is provided on the stirring shaft, the stirring shaft is coaxially arranged with the reaction cylinder 1.1, both ends of the stirring shaft are rotatably mounted on the reaction cylinder 1.1 through bearings, the stirring motor is fixedly mounted on the outer wall of the reaction cylinder 1.1, and the output shaft of the stirring motor is mechanically connected to one end of the stirring shaft, such as a coupling or a gear transmission connection. Further optionally, the stirring paddle is configured as a rod and fixedly mounted on the circumferential side wall of the stirring shaft, or in other embodiments, the stirring paddle is configured as a spiral blade.

[0033] Further preferably, the reaction cylinder 1.1 is equipped with a rotating scraper 2.1, which is also fixedly mounted on the stirring shaft and driven to rotate by the stirring shaft. The rotating scraper 2.1 is close to the inner wall of the axial end cover of the feed end. During the rotation process, it passes through the solid-liquid separation discharge port and the solid-liquid separation return port to scrape the solid-liquid separation discharge port and the solid-liquid separation return port to prevent the material from clogging the solid-liquid separation discharge port and the solid-liquid separation return port.

[0034] The above structure of the present invention enables the multiple reaction cylinders 1.1 to be connected in series in sequence along the material conveying direction, and the reaction cylinders 1.1 are staggered in the head and tail directions, so that all the reaction cylinders 1.1 are connected in series in a "bow" or "Z" shape.

[0035] Preferably, the connecting pipe 1.2 is in a vertical position to facilitate material discharge.

[0036] Optionally, the reaction cylinder 1.1 is a cylindrical structure made of rolled metal, and there is no dead angle in the stirring process inside the reaction cylinder 1.11.

[0037] Alternatively, the reaction cylinder is a square cylindrical structure. Specifically, the square cylindrical structure can be made of a metal material. Alternatively, the square cylindrical structure is made of other materials (such as building materials) and a resin lining coating is provided on its inner surface.

[0038] During use, the material is added from the feed port 1.4 of the top reaction cylinder 1.1, and the material enters the reactor from the feed port. Under the action of the stirring device 1.3, the material is pushed forward in the horizontal direction by the accumulation and extrusion of the newly added material or by the rotation of the blades. While the material is fully reacted, it also flows toward the side of the discharge port and enters the reaction cylinder 1.1 of the next layer through the connecting pipe 1.2; while continuing to react in the next layer of reaction cylinder 1.1, it also flows toward the discharge port of the reaction cylinder 1.1 under the action of the stirring device 1.3 configured for the next layer of reaction cylinder 1.1, and enters the reaction cylinder 1.1 of the next layer to continue to react, and so on, until the residue after the reaction of the material flows out from the discharge port 1.5 of the bottom reaction cylinder 1.1. Stirring device 1.3 ensures full contact between the material and the anaerobic microorganisms, pushing the material along reaction cylinder 1.1 toward the discharge port. Stirring device 1.3 is set to different speeds based on the reaction stage of the material within the local reaction zone and can be individually controlled to suit the material properties and fermentation requirements of each tank. After the reaction is complete, the material is discharged from the discharge port. The material moves in a "bow" pattern throughout the reactor, flowing through each reaction cylinder 1.1 in sequence.

[0039] Each stirring device 1.3 is independently configured, making it easy to configure the power and size. According to the moisture content and viscosity of the material in each reaction stage, a suitable stirring device 1.3 can be configured, and the rotation speed can be adjusted individually to control the material movement cycle. At the same time, since the reaction space is divided into multiple reaction cylinders 1.1, the size of each reaction cylinder 1.1 is reduced, and the requirements for the stirring device 1.3 configured for it are also reduced, thereby achieving cost reduction and efficiency improvement. In addition, the provision of multiple reaction cylinders 1.1 also allows the reaction stages of the material to be reasonably distributed among different reaction cylinders 1.1, and different reaction cylinders 1.1 undergo different reaction stages, so that the material flows through each reaction cylinder 1.1 in turn, allowing the material to remain in the device for a sufficient time, making the material reaction more complete.

[0040] It should be noted that the above embodiments illustrate rather than limit the present invention, and that those skilled in the art may devise alternative embodiments without departing from the scope of the appended claims. In the claims, any reference symbols placed between brackets should not be construed as limiting the claims. The words "comprise" or "include" do not exclude the presence of elements or steps not listed in the claims. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The use of the words first, second, and third, etc. does not indicate any order and these words may be interpreted as names.

[0041] One or more technical solutions in the embodiments of the present invention have at least the following technical effects or advantages:

[0042] Each reaction cylinder of the simulated intestinal-type anaerobic digestion reactor for high-organic-content materials is tilted along the direction of material movement. Under the action of gravity, the semi-solid material produced by liquefaction in each reaction cylinder automatically enters the solid-liquid separation device for solid-liquid separation in the opposite direction of the solid material movement. The system has low energy consumption, simple operation, and low cost. Liquid produced by hydrolysis and liquefaction can be promptly discharged from the reaction cylinder, ensuring that the anaerobic digestion reactor always maintains a high solids content, facilitating solid material turnover and improving reactor utilization efficiency.

[0043] The solid-liquid separation device provided by the present invention returns the separated solid part to the reactor nearby, which reduces energy consumption compared with transporting the separated solid material over a long distance to the front end for return.

[0044] At the feed end of each reaction cylinder of the reactor, each reaction cylinder is individually equipped with a small solid-liquid separation press. Each solid-liquid separation press independently separates the solid and liquid of the material, and effectively improves the solid content according to the different properties of the materials in each reaction cylinder.

[0045] All features disclosed in this specification, except mutually exclusive features, can be combined in any way.

[0046] Any feature disclosed in this specification (including any appended claims, abstract and drawings), unless otherwise stated, may be replaced by other equivalent or similar features. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0047] The present invention is not limited to the aforementioned specific embodiments, but extends to any new features or any new combination disclosed in this specification, as well as any new method or process steps or any new combination disclosed.

Claims

1. A simulated intestinal anaerobic digestion reactor with real-time solid-liquid separation function for high-content organic matter, characterized in that: It comprises a plurality of reaction cylinders arranged in sequence along the vertical direction, the axis of each reaction cylinder is arranged in the left-right direction and has an upward inclination angle, and the inclination angles of any two adjacent reaction cylinders are opposite, the left end and the right end of each reaction cylinder having a higher height are used as the discharge end, and the lower end is used as the feed end, a feed port is provided on the cylindrical side wall of the feed end, and a discharge port is provided on the cylindrical side wall of the discharge end, and in any two adjacent reaction cylinders, the feed port of the reaction cylinder located relatively below is connected to the discharge port of the reaction cylinder located relatively above through a connecting pipe, and the angle between the axis of each reaction cylinder and the horizontal plane is α, 0°<α≤10°; The axial end cover of the feed end of each reaction cylinder is connected to a solid-liquid separation device, which includes a solid-liquid separation press and a screw conveying device. The axial end cover of the feed end is provided with a solid-liquid separation discharge port and a solid-liquid separation return port. The solid-liquid separation discharge port is located at the lower part of the axial end cover. The feed port of the solid-liquid separation press is connected to the solid-liquid separation discharge port. The solid discharge port of the solid-liquid separation press is connected to the solid-liquid separation return port via the screw conveying device. The liquid material discharge port of the solid-liquid separation press is used to discharge the liquid after solid-liquid separation; Each reaction cylinder is equipped with a stirring device; the stirring device includes a stirring motor and a stirring shaft, and a stirring paddle is provided on the stirring shaft; the stirring shaft is coaxially arranged with the reaction cylinder, and both ends of the stirring shaft are rotatably mounted on the reaction cylinder through bearings, the stirring motor is fixedly mounted on the outer wall of the reaction cylinder, and the output shaft of the stirring motor is mechanically connected to one end of the stirring shaft.

2. The simulated intestinal anaerobic digestion reactor for high-inherent organic matter with real-time solid-liquid separation function according to claim 1, characterized in that: The reaction cylinder is equipped with a rotating scraper, which is fixedly mounted on the stirring shaft and driven to rotate by the stirring shaft. The rotating scraper is close to the inner wall of the axial end cover at the feed end, and passes through the solid-liquid separation discharge port and the solid-liquid separation return port during rotation.

3. A simulated intestinal high-organic material anaerobic digestion reactor with real-time solid-liquid separation function according to any one of claims 1 to 2, characterized in that: The connecting pipe extends in a vertical direction.

4. A simulated intestinal high-organic material anaerobic digestion reactor with real-time solid-liquid separation function according to any one of claims 1 to 2, characterized in that: The reaction cylinder is a cylindrical structure formed by rolling metal.

5. A simulated intestinal high-inherent organic matter anaerobic digestion reactor with real-time solid-liquid separation function according to any one of claims 1 to 2, characterized in that: The reaction cylinder is a square cylinder structure. The square cylindrical structure is made of metal material. Or the square cylindrical structure is made of building materials, and a resin lining coating is provided on its inner surface.

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