A methane production single-cell protein fermenter

Abstract

The utility model provides a kind of methane production single-cell protein is with fermentation tank.The methane production single-cell protein is with fermentation tank including fermentation tank, the top of the fermentation tank is provided with tank cover, the tank cover is provided with feeding pipe, the feeding pipe is used to put the material of methane production single-cell protein into fermentation tank;Sealing rotation is installed on the fermentation tank pipe, the pipe is provided with check valve, the top of the pipe is fixedly installed with cross pipe, the cross pipe is provided with multiple air jets;Sealing rotation is installed on the pipe sleeve, the two sides of the sleeve are provided with air inlet pipe.The methane production single-cell protein is with fermentation tank provided by the utility model solves the technical problem that the existing air-lift external circulation fermentation tank is not evenly distributed in use due to gas, leading to low methane utilization and insufficient mixing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of fermentation tank technology, and in particular to a fermentation tank for producing single-cell protein from methane. Background Technology

[0002] Methane-to-single-cell protein (SCP) production utilizes microorganisms such as methanophiles or methanogenic bacteria to metabolize methane as a carbon and energy source, converting it into protein-rich microbial cells. This process typically employs an airlift external circulation fermenter, which serves as the core equipment in the methane-to-single-cell protein production process. Through its unique gas-driven circulation mechanism, the fermenter achieves highly efficient methane conversion and large-scale production of single-cell proteins.

[0003] However, existing airlift external circulation fermenters have shortcomings. Their air inlet pipes can only exhaust gas at a fixed position, resulting in uneven gas entry, low methane utilization and insufficient mixing efficiency, which in turn affects the fermentation effect.

[0004] Therefore, it is necessary to provide a fermenter for producing single-cell protein from methane to solve the above-mentioned technical problems. Utility Model Content

[0005] To address the technical problems of uneven gas distribution, resulting in low methane utilization and insufficient mixing efficiency in existing airlift external circulation fermenters, this invention provides a fermenter for producing single-cell protein from methane.

[0006] The fermenter for producing single-cell protein from methane provided by this utility model includes: a fermenter, a lid on the top of which is provided with a feeding pipe for feeding materials for producing single-cell protein from methane into the fermenter; a through pipe rotatably and sealed on the fermenter, a one-way valve on the through pipe, a horizontal pipe fixedly installed at the top of the through pipe, and multiple air nozzles on the horizontal pipe; a sleeve rotatably and sealed on the through pipe, with air inlet pipes on both sides of the sleeve; a rotating mechanism mounted on the fermenter for rotating the through pipe; and a circulating cooling mechanism mounted on the fermenter for cooling the materials.

[0007] Preferably, the rotating mechanism includes: a servo motor fixedly installed at the bottom of the fermenter, with a drive gear fixedly sleeved on the output shaft of the servo motor; and a driven gear fixedly sleeved on the through pipe, the driven gear meshing with the drive gear.

[0008] Preferably, the circulating cooling mechanism includes: a circulating pump fixedly installed on one side of the fermenter, with a suction pipe fixedly installed on the feed end of the circulating pump, one end of the suction pipe extending into the interior of the fermenter; a cooling box fixedly installed on the outer wall of the fermenter, with a cooling pipe fixedly installed on the cooling box, one end of the cooling pipe being fixedly connected to the discharge end of the circulating pump, and the other end of the cooling pipe extending into the interior of the fermenter; and an inlet pipe and an outlet pipe fixedly installed on the cooling box.

[0009] Preferably, the fermenter is provided with an air outlet pipe, and the feed pipe is threaded with a cover.

[0010] Preferably, the bottom of the fermenter is fixedly equipped with multiple support legs, and the bottom ends of the multiple support legs are fixedly equipped with the same base plate.

[0011] Preferably, a discharge pipe is fixedly installed on the fermentation tank, and a valve is provided on the discharge pipe.

[0012] Preferably, a bracket is fixedly installed at the bottom of the fermenter, and one side of the bracket is fixedly connected to the sleeve.

[0013] Compared with related technologies, the fermenter for producing single-cell protein from methane provided by this utility model has the following beneficial effects:

[0014] This invention provides a fermenter for producing single-cell protein from methane. Compared with related technologies, this invention uses a rotating mechanism to achieve uniform dispersion of methane bubbles through a rotating gas distribution system. Combined with an external circulation cooling mechanism for precise temperature control, it significantly improves the overall methane utilization rate and single-cell protein yield. This effectively solves the technical problems of low methane utilization and insufficient mixing efficiency caused by uneven gas distribution in existing airlift external circulation fermenters. Attached Figure Description

[0015] Figure 1 A cross-sectional schematic diagram of a preferred embodiment of the fermenter for producing single-cell protein from methane provided by this utility model;

[0016] Figure 2 for Figure 1 An enlarged schematic diagram of part A is shown below;

[0017] Figure 3 This is a schematic diagram of the assembly structure of the support leg and the base plate in this utility model.

[0018] Numbered in the diagram: 1. Fermentation tank; 2. Tank lid; 3. Feeding pipe; 4. Through pipe; 5. Horizontal pipe; 6. Sleeve; 7. Air inlet pipe; 8. Servo motor; 9. Drive gear; 10. Driven gear; 11. Circulation pump; 12. Suction pipe; 13. Cooling box; 14. Cooling pipe; 15. Water inlet pipe; 16. Water outlet pipe; 17. Air outlet pipe; 18. Support leg; 19. Base plate; 20. Discharge pipe; 21. Support frame. Detailed Implementation

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the specification and the foregoing drawings are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification or the foregoing drawings are used to distinguish different objects, not to describe a specific order; the terms "inner," "outer," "left," and "right" indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0020] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0021] This utility model embodiment provides a fermenter for producing single-cell protein from methane, such as... Figure 1-3 As shown, the fermenter for producing single-cell protein from methane includes: a fermenter 1, with a lid 2 on top and a feeding pipe 3 on the lid 2 for feeding materials for producing single-cell protein from methane into the fermenter 1; a sealing and rotatable pipe 4 mounted on the fermenter 1, with a one-way valve on the pipe 4 and a horizontal pipe 5 fixedly mounted at the top of the pipe 4, with multiple air nozzles on the horizontal pipe 5; a sleeve 6 sealed and rotatably mounted on the pipe 4, with air inlet pipes 7 on both sides of the sleeve 6; a rotating mechanism mounted on the fermenter 1 for rotating the pipe 4; and a circulating cooling mechanism mounted on the fermenter 1 for cooling the materials.

[0022] In this embodiment, fermentation liquid and other materials are fed into fermenter 1 through feeding pipe 3 on tank cover 2. Methane gas and oxygen can be input from air inlet pipes 7 on both sides of sleeve 6 through corresponding pipes, and evenly sprayed into fermentation liquid through horizontal pipe 5 at the top of pipe 4 and jet nozzle. Rotation mechanism drives pipe 4 to rotate, which in turn drives horizontal pipe 5 to rotate, so that methane bubbles are dynamically dispersed at the bottom of fermenter 1, avoiding excessively high local concentration caused by fixed-position air intake. Jetting can also promote the reaction and mixing between materials. Circulating cooling mechanism can continuously extract the bottom material, which, after cooling, will be discharged into fermenter 1 from the top, which can effectively remove the heat generated in the entire fermentation process, remove fermentation heat to control a suitable fermentation temperature, and ensure efficient metabolism of methanophiles. The use of one-way valve can prevent material from entering sleeve 6 from pipe 4.

[0023] In a further preferred embodiment of the present invention, the rotating mechanism includes: a servo motor 8 fixedly installed at the bottom of the fermenter 1, with a drive gear 9 fixedly sleeved on the output shaft of the servo motor 8; and a driven gear 10 fixedly sleeved on the through pipe 4, the driven gear 10 meshing with the drive gear 9.

[0024] In this embodiment, after the servo motor 8 is started, it drives the drive gear 9 on the output shaft to rotate. The drive gear 9 will drive the driven gear 10 to rotate synchronously. Since the driven gear 10 is fixedly sleeved on the through pipe 4, it drives the through pipe 4 and the horizontal pipe 5 at the top to rotate as a whole, so that the jet nozzle on the horizontal pipe 5 forms a dynamic annular airflow distribution in the fermenter 1, realizing the uniform dispersion and efficient dissolution of methane gas.

[0025] In a further preferred embodiment of the present invention, the circulating cooling mechanism includes: a circulating pump 11 fixedly installed on one side of the fermentation tank 1, a suction pipe 12 fixedly installed on the feed end of the circulating pump 11, one end of the suction pipe 12 extending into the interior of the fermentation tank 1; a cooling box 13 fixedly installed on the outer wall of the fermentation tank 1, a cooling pipe 14 fixedly installed on the cooling box 13, one end of the cooling pipe 14 being fixedly connected to the discharge end of the circulating pump 11, and the other end of the cooling pipe 14 extending into the interior of the fermentation tank 1; and a water inlet pipe 15 and a water outlet pipe 16 fixedly installed on the cooling box 13.

[0026] In this embodiment, the circulating pump 11 draws out the fermentation liquid and other materials in the fermenter 1 through the suction pipe 12 and pumps them into the cooling pipe 14 in the cooling box 13. The cooling water flows into the cooling box 13 through the water inlet pipe 15 to exchange heat with the fermentation liquid in the cooling pipe 14. The cooled fermentation liquid flows back to the fermenter 1 through the other end of the cooling pipe 14, while the heated cooling water is discharged from the water outlet pipe 16, forming a continuous temperature control cycle. This mechanism achieves indirect heat exchange between the fermentation liquid and other materials and the cooling water through the external cooling box 13, avoiding direct contact contamination and effectively controlling the temperature stability of the fermentation system.

[0027] In a further preferred embodiment of the present invention, the fermenter 1 is provided with an air outlet pipe 17, and the feeding pipe 3 is threaded with a cover.

[0028] In this embodiment, the waste gas generated during fermentation is discharged through the gas outlet pipe 17 to maintain the gas pressure balance inside the tank. The feeding pipe 3 is sealed and opened and closed through the threaded cover. That is, by using the cover, the feeding pipe 3 can be blocked after feeding is completed.

[0029] In a further preferred embodiment of the present invention, a plurality of support legs 18 are fixedly installed at the bottom of the fermentation tank 1, and the bottom ends of the plurality of support legs 18 are fixedly installed with the same base plate 19.

[0030] In this embodiment, the device can be stably placed on the ground for use by the combined use of multiple support legs 18 and base plate 19.

[0031] In a further preferred embodiment of the present invention, a discharge pipe 20 is fixedly installed on the fermentation tank 1, and a valve is provided on the discharge pipe 20.

[0032] In this embodiment, by opening the valve, the fermentation material in the fermentation tank 1 can be discharged through the discharge pipe 20.

[0033] In a further preferred embodiment of the present invention, a bracket 21 is fixedly installed at the bottom of the fermentation tank 1, and one side of the bracket 21 is fixedly connected to the sleeve 6.

[0034] In this embodiment, the use of bracket 21 can fix the sleeve 6, so that the tube 4 will not rotate with the sleeve 6 when it rotates.

[0035] In summary, compared with related technologies, this utility model, through the use of a rotating mechanism, can achieve uniform dispersion of methane bubbles by using a rotating gas distribution system. Combined with the external circulation cooling mechanism for precise temperature control, it significantly improves the overall methane utilization rate and single-cell protein yield, effectively solving the technical problems of low methane utilization and insufficient mixing efficiency caused by uneven gas distribution in existing airlift external circulation fermenters.

[0036] It should be understood, in the several embodiments provided in this application, that the disclosed apparatus may be implemented in other ways.

[0037] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A methane production single-cell protein fermenter characterized by, Including: The fermentation tank is provided with a tank cover at the top, and a feeding pipe is arranged on the tank cover for feeding the material of methane production single-cell protein into the fermentation tank. A through pipe is sealingly and rotatably installed on the fermentation tank, a one-way valve is arranged on the through pipe, a cross pipe is fixedly installed at the top end of the through pipe, and a plurality of air injection nozzles are arranged on the cross pipe. A sleeve is sealingly and rotatably installed on the through pipe, and air inlet pipes are arranged on both sides of the sleeve. A rotating mechanism is assembled on the fermentation tank for rotating the through pipe. A circulating cooling mechanism is installed on the fermentation tank for cooling the material.

2. The methane-producing single-cell protein fermenter according to claim 1, wherein The rotating mechanism comprises: A servo motor is fixedly installed at the bottom of the fermentation tank, and a driving gear is fixedly sleeved on the output shaft of the servo motor. A driven gear is fixedly sleeved on the through pipe, and the driven gear is engaged with the driving gear.

3. The methane-producing single-cell protein fermenter according to claim 1, wherein The circulating cooling mechanism comprises: A circulating pump is fixedly installed on one side of the fermentation tank, a suction pipe is fixedly installed on the inlet end of the circulating pump, and one end of the suction pipe extends into the interior of the fermentation tank. A cooling box is fixedly installed on the outer wall of the fermentation tank, a cooling pipe is fixedly installed on the cooling box, one end of the cooling pipe is fixedly connected with the discharge end of the circulating pump, and the other end of the cooling pipe extends into the interior of the fermentation tank. A water inlet pipe and a water outlet pipe are fixedly installed on the cooling box.

4. The methane-producing single-cell protein fermenter according to claim 1, wherein An air outlet pipe is arranged on the fermentation tank, and a cover is threadedly installed on the feeding pipe.

5. The methane-producing single-cell protein fermenter according to claim 1, wherein A plurality of supporting legs are fixedly installed at the bottom of the fermentation tank, and a same bottom plate is fixedly installed at the bottom end of the supporting legs.

6. The methane-producing single-cell protein fermenter according to claim 1, wherein A discharge pipe is fixedly installed on the fermentation tank, and a valve is arranged on the discharge pipe.

7. The methane-producing single-cell protein fermenter according to claim 1, wherein A support is fixedly installed at the bottom of the fermentation tank, and one side of the support is fixedly connected with the sleeve.

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