Straw-bacterial population electricity production fermentation device

Abstract

The utility model relates to the technical field of bacteria population electricity generation device, concretely is a kind of straw-bacteria population electricity generation fermentation device, including fermentation tank, the proton exchange membrane is fixed in fermentation tank interior, the proton exchange membrane divides fermentation tank into two parts of anode pool and cathode pool, the anode pool is equipped with a plurality of for holding alkaline material storage parts, the storage part is located in different height in anode pool;The support rod bottom end is fixedly connected with the fermentation tank bottom;The utility model is through setting the storage box of different height, along with the acid liquid in anode pool constantly accumulation, the liquid level of acid liquid constantly changes high, can and the sodium bicarbonate in the storage box of different height place contact neutralization, and by setting fan blade in storage part inside, by the rotation of fan blade to speed up the flow of liquid inside and outside storage box, more acidic solution contacts the sodium bicarbonate in storage box, speeds up neutralization speed, to can promote pH value, effectively avoid the inhibitory influence of acid liquid to the activity of microorganism.

Description

Technical Field

[0001] This utility model relates to the technical field of microbial power generation devices, and in particular to a straw-microbial power generation fermentation device. Background Technology

[0002] Farmers commonly dispose of agricultural waste such as straw by burning it, which produces large amounts of dense smoke and carbon dioxide, polluting the environment. To achieve efficient, clean, and value-added utilization of agricultural waste, a straw-microbial co-electrolytic fermentation device is now being used to treat this type of agricultural waste, promoting sustainable agriculture and low-carbon energy development.

[0003] The straw-microbial fermentation device generates electricity by utilizing the principle of microbial fermentation. When microorganisms decompose organic matter such as cellulose and hemicellulose in straw under anaerobic conditions, they produce short-chain organic acids such as acetic acid and propionic acid through fermentation. The accumulation of organic acids will lower the pH value of the solution in the anode chamber, thereby inhibiting the activity of microorganisms and reducing the power generation speed of the device. Utility Model Content

[0004] The main objective of this invention is to provide a straw-microbial co-electrolytic fermentation device to solve the problems raised in related technologies.

[0005] To achieve the above objectives, according to one aspect of the present invention, a straw-microbial coexistence electrogenic fermentation device is provided, comprising a fermentation chamber, wherein a proton exchange membrane is fixedly installed inside the fermentation chamber, the proton exchange membrane dividing the fermentation chamber into an anode pool and a cathode pool, wherein the anode pool is provided with a plurality of storage sections for holding alkaline substances, the storage sections being located at different heights within the anode pool.

[0006] Furthermore, the storage section includes several storage boxes, which are vertically stacked and fixed together, and the length of the storage boxes decreases sequentially from bottom to top to form a stepped shape.

[0007] Furthermore, each of the storage boxes is fixedly provided with a partition net in the middle, and the partition nets are all aligned vertically.

[0008] Furthermore, a motor is fixedly installed on the top of the top storage box, and a central shaft is fixedly installed on the output shaft of the motor. The central shaft passes through all the storage boxes and is rotatably connected to the bottom surface of the bottom storage box.

[0009] Furthermore, a number of fan blades are fixedly mounted on the central shaft.

[0010] Furthermore, the storage box is equipped with several sodium bicarbonate placement meshes inside, and the outer wall of the storage box is provided with several holes.

[0011] Furthermore, the fermentation tank is detachably equipped with a lid, and the upper surface of the lid is fixedly provided with an anode terminal and a cathode terminal.

[0012] Furthermore, an anode plate and a cathode plate are fixedly provided on the lower surface of the box cover.

[0013] Compared with the prior art, the present invention has the following beneficial effects: This invention features storage boxes at different heights. As acid accumulates in the anode tank, the acid level rises, allowing it to contact and neutralize the sodium bicarbonate in the storage boxes at different heights. Furthermore, fan blades inside the storage compartments accelerate the flow of liquid inside and outside the boxes, ensuring more acidic solution comes into contact with the sodium bicarbonate, thus speeding up neutralization and increasing the pH value. This effectively prevents the acid from inhibiting the activity of microorganisms. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall design of this utility model; Figure 2 This is a schematic diagram of the internal structure of this utility model; Figure 3 This is a schematic diagram of the material storage section of this utility model.

[0015] Figure label: 1. Fermentation chamber; 2. Chamber lid; 3. Anode terminal; 4. Cathode terminal; 5. Anode pool; 6. Anode plate; 7. Cathode pool; 8. Cathode plate; 9. Storage compartment; 10. Proton exchange membrane; 11. Anode feed port; 12. Cathode feed port; 13. Exhaust port; 91. Storage box; 92. Separator mesh; 93. Sodium bicarbonate storage mesh; 94. Central shaft; 95. Fan blade; 96. Motor; 97. Hole. Detailed Implementation

[0016] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0017] This embodiment provides a straw-microbial co-electrostatic fermentation device, such as... Figure 1 As shown, the fermentation tank includes a fermentation chamber 1. A proton exchange membrane 10 is fixedly installed inside the fermentation chamber 1. The proton exchange membrane 10 divides the fermentation chamber 1 into two parts: an anode pool 5 and a cathode pool 7. The anode pool 5 is provided with several storage sections 9 for holding alkaline substances. The storage sections 9 are located at different heights inside the anode pool 5.

[0018] like Figure 3As shown, the storage section 9 includes several storage boxes 91, which are vertically stacked and fixed together, with their lengths decreasing from bottom to top to form a stepped shape. The storage boxes 91 are fixed inside the anode pool 5, and the different storage boxes 91 raise the sodium bicarbonate inside to different positions. As the acid in the anode pool 5 continuously accumulates, the liquid level of the acid continuously rises, allowing it to contact and neutralize the sodium bicarbonate in the storage boxes 91 at different heights.

[0019] Each storage box 91 is fixedly equipped with a partition net 92 in the middle, and the partition nets 92 are aligned vertically. The partition net 92 protects the fan blades 95, preventing them from directly contacting the sodium bicarbonate when rotating. This causes the sodium bicarbonate to be stirred out of the storage box 91 and settle at the bottom of the tank, reducing the neutralization speed.

[0020] A motor 96 is fixedly mounted on the top of the top storage box 91. The motor 96 is surrounded by a waterproof protective cover. A central shaft 94 is fixedly mounted on the output shaft of the motor 96. The central shaft 94 passes through all the storage boxes 91 and is rotatably connected to the bottom surface of the bottom storage box 91. The motor 96 drives the central shaft 94 to rotate, and the central shaft 94 drives the fan blades 95 to rotate.

[0021] The storage box 91 has a large enough capacity, and the sodium bicarbonate inside can neutralize the acid produced during fermentation of the substrate added to the anode pool 5 at one time.

[0022] Several fan blades 95 are fixedly installed on the central shaft 94. Each partition net 92 has a fan blade 95. The rotating fan blades 95 agitate the liquid in the partition net 92, accelerate the flow of liquid inside and outside the storage box 91, and allow more acidic solution to come into contact with the sodium bicarbonate in the storage box 91, thereby accelerating the neutralization speed.

[0023] The storage box 91 has several sodium bicarbonate placement meshes 93 fixedly installed inside, and several holes 97 on its outer wall. The sodium bicarbonate placement meshes 93 are used to place sheet-like sodium bicarbonate, spreading it out in layers to increase its contact area with the acid solution and accelerate the neutralization process. The acid solution flows into the storage box 91 through the holes 97 to undergo a neutralization reaction, and the neutralized solution then flows out through the holes 97.

[0024] The fermentation chamber 1 is equipped with a detachable cover 2 on top. An anode terminal 3 and a cathode terminal 4 are fixedly mounted on the upper surface of the cover 2. The anode terminal 3 and the cathode terminal 4 are connected to an external circuit to store the current generated inside the fermentation chamber 1.

[0025] An anode plate 6 and a cathode plate 8 are fixedly mounted on the lower surface of the box cover 2. For example... Figure 2As shown, cathode plate 8 is located inside cathode pool 7 and is electrically connected to cathode terminal 4; anode plate 6 is located inside anode pool 5 and is electrically connected to anode terminal 3. The cover 2 facing anode plate 6 is equipped with an anode feed port 11 and an exhaust port 13. Straw, microorganisms, electrolytes, and other substances can be added to anode pool 5 through anode feed port 11. Sodium bicarbonate in storage box 91 undergoes a neutralization reaction with short-chain organic acids such as acetic acid and propionic acid in the anode pool 5 solution, and the generated carbon dioxide is discharged through exhaust port 13. Electrolytes and other substances can be added to cathode pool 7 through cathode feed port 12. Both anode feed port 11 and cathode feed port 12 are equipped with sealing plugs to ensure a sealed environment for anode pool 5 and cathode pool 7. Exhaust port 13 is equipped with a one-way valve, allowing only gas to exit from anode pool 5 and preventing air from entering anode pool 5 through exhaust port 13, thus ensuring a sealed state for anode pool 5.

[0026] In this embodiment, sodium bicarbonate is used as a neutralizing agent because it is a weakly alkaline substance, and its neutralization reaction with organic acids is relatively mild, avoiding a sudden increase in pH that could impact microorganisms. Moreover, sodium bicarbonate has no toxic side effects on microorganisms and will not inhibit their growth.

[0027] When in use, open the box cover 2, put the storage box 91 containing sodium bicarbonate into the anode pool 5, add the treated straw, microorganisms, electrolytes and other substrates into the anode pool 5, add electrolytes and other substances into the cathode pool 7, close the box cover 2, and under the action of microorganisms, the straw begins to ferment. The generated current is connected to the external circuit through the anode terminal 3 and the cathode terminal 4 and stored.

[0028] As fermentation progresses, microbial metabolism produces a significant amount of short-chain organic acids such as acetic acid and propionic acid, leading to a decrease in the pH value of the electrolyte in the anode tank 5. This electrolyte flows into the storage box 91 through the hole 97, where it undergoes a neutralization reaction with the sodium bicarbonate, causing the pH value of the electrolyte in the anode tank 5 to slowly increase. This prevents excessive acidity of the electrolyte from inhibiting the activity of microorganisms and ensures the normal operation of the fermentation and electricity generation process.

[0029] By setting storage boxes 91 at different heights, as the acid in the anode pool 5 continuously accumulates, the acid level continuously rises, allowing it to contact and neutralize the sodium bicarbonate in the storage boxes 91 at different heights. Since the acid will first neutralize the sodium bicarbonate in the bottom storage box 91, after some of the acid is neutralized, the overall acidity of the solution will decrease. At the same time, as the acid continues to accumulate, it will slowly contact the sodium bicarbonate in the storage boxes 91 at different heights and neutralize it. During this process, the overall acidity of the solution continuously decreases, so the required sodium bicarbonate will also decrease. Therefore, the storage boxes 91 are set in a stepped shape with the length decreasing from bottom to top.

[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A straw-microbial co-electrostatic fermentation device, comprising a fermentation chamber (1), wherein a proton exchange membrane (10) is fixedly installed inside the fermentation chamber (1), the proton exchange membrane (10) dividing the fermentation chamber (1) into an anode pool (5) and a cathode pool (7), characterized in that, The anode pool (5) is provided with several storage sections (9) for holding alkaline substances, and the storage sections (9) are located at different heights within the anode pool (5).

2. The straw-microbial cocoon electrogenic fermentation device according to claim 1, characterized in that, The storage section (9) includes several storage boxes (91), which are vertically stacked and fixed together, and the length of the storage boxes (91) decreases from bottom to top to form a stepped shape.

3. The straw-microbial cocoon electrogenic fermentation device according to claim 2, characterized in that, Each of the storage boxes (91) is fixedly provided with a partition net (92) in the middle, and the partition nets (92) are aligned vertically.

4. The straw-microbial co-electrolysis fermentation device according to claim 3, characterized in that, A motor (96) is fixedly installed on the top of the storage box (91). A central shaft (94) is fixedly installed on the output shaft of the motor (96). The central shaft (94) passes through all the storage boxes (91) and is rotatably connected to the bottom surface of the storage box (91) at the bottom.

5. The straw-microbial co-electrolysis fermentation device according to claim 4, characterized in that, Several fan blades (95) are fixedly provided on the central shaft (94).

6. The straw-microbial cocoon electrogenic fermentation device according to claim 2, characterized in that, The storage box (91) is provided with several sodium bicarbonate placement nets (93) inside, and the outer wall of the storage box (91) is provided with several holes (97).

7. The straw-microbial fermentation device for generating electricity according to claim 1, characterized in that, The fermentation tank (1) is detachably equipped with a lid (2) on the top, and the upper surface of the lid (2) is fixedly equipped with an anode terminal (3) and a cathode terminal (4).

8. The straw-microbial co-electrolysis fermentation device according to claim 7, characterized in that, The lower surface of the box cover (2) is fixedly provided with an anode plate (6) and a cathode plate (8).

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