Double-membrane fermentation tank for efficient biogas fermentation

Abstract

The utility model relates to biogas fermentation tank technical field especially relates to a kind of double-membrane fermentation tank of high-efficiency biogas fermentation, the utility model discloses fermentation tank body, the inside rotation of fermentation tank body is connected with lifting cylinder, the inboard of lifting cylinder is fixed with several lifting slurry, the inside of fermentation tank body and located the inboard rotation of lifting cylinder is connected with transmission rod, the outboard of transmission rod is fixed with several stirring vane, the top end of stirring vane inside is provided for the drive mechanism of the reverse rotation of lifting cylinder and transmission rod, the utility model provides a kind of double-membrane fermentation tank of high-efficiency biogas fermentation, by starting drive mechanism to drive lifting cylinder and stirring vane to carry out reverse rotation, and lifting cylinder drives lifting slurry to be deposited organic matter in the bottom end inside fermentation tank body to be lifted upwards, deposited organic matter re-enters tank body, to effectively mix the organic matter and biogas slurry inside fermentation tank body, and the progress of fermentation reaction is accelerated.

Description

Technical Field

[0001] This utility model relates to the field of biogas fermentation tank technology, and in particular to a double-membrane fermentation tank for high-efficiency biogas fermentation. Background Technology

[0002] After various organic materials are added to the biogas digester, various microorganisms inside the digester ferment and produce combustible mixed gases such as methane and carbon dioxide, which is energy-saving and environmentally friendly.

[0003] When using the above technology, the following technical problems were found in the existing technology: The existing technology mixes the materials inside the fermenter through a stirring shaft to achieve a good fermentation effect. However, the materials inside the fermenter tend to settle at the bottom, making it difficult to transport and drop the materials from the bottom of the fermenter upwards for circulation, thus hindering the effective increase of contact between the solid materials and the microorganisms in the biogas slurry. This affects the overall fermentation rate. Furthermore, most existing technologies use a unidirectional rotating stirring method, which is not conducive to effectively increasing the mixing and fermentation effect. Therefore, we designed a high-efficiency biogas fermentation double-membrane fermenter to provide an alternative technical solution to the above technical problems. Utility Model Content

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A high-efficiency biogas fermentation double-membrane fermenter includes a fermentation tank body, a lifting cylinder rotatably connected inside the fermentation tank body, a plurality of lifting slurries fixed on the inner side of the lifting cylinder, a transmission rod rotatably connected inside the fermentation tank body and located inside the lifting cylinder, a plurality of stirring blades fixed on the outer side of the transmission rod, and a drive mechanism for reversing the rotation of the lifting cylinder and the transmission rod is provided at the top of the inner side of the stirring blades.

[0006] As a preferred embodiment of the double-membrane fermenter for high-efficiency biogas fermentation provided by this utility model, the top of the fermenter body is fixed with an outlet pipe and a feed pipe, and the bottom of the fermenter body is fixed with a slag outlet pipe.

[0007] As a preferred embodiment of the efficient biogas fermentation double-membrane fermenter provided by this utility model, the driving mechanism includes a servo motor, an auxiliary gear, a transmission gear, and an internal gear. The top end of the lifting cylinder is fixed with an internal gear, the outer side of the internal gear is rotatably connected to the fermentation tank body, the top end of the fermentation tank body is fixed with a servo motor, the inner side of the internal gear is meshed with a transmission gear, and the output end of the servo motor passes through the fermentation tank body and is fixed with the transmission gear.

[0008] In a preferred embodiment of the efficient biogas fermentation double-membrane fermenter provided by this utility model, an auxiliary gear is fixed at the top of the transmission rod, and the outer side of the transmission gear meshes with the auxiliary gear.

[0009] In a preferred embodiment of the high-efficiency biogas fermentation double-membrane fermenter provided by this utility model, the lifting cylinder rotates in the opposite direction to the stirring blade.

[0010] As a preferred embodiment of the efficient biogas fermentation double-membrane fermenter provided by this utility model, the bottom end of the fermenter body is fixed with several support frames.

[0011] It is clear without a doubt that the technical solution described above in this application can solve the technical problem that this application aims to address.

[0012] At the same time, through the above technical solutions, this utility model has at least the following beneficial effects:

[0013] This utility model provides a high-efficiency biogas fermentation double-membrane fermenter. By starting the drive mechanism, the lifting cylinder and stirring blades rotate in opposite directions. The lifting cylinder drives the lifting slurry to lift the organic matter settled at the bottom of the fermenter body upwards, allowing the settled organic matter to re-enter the tank body. The stirring blades and the lifting cylinder rotate in opposite directions to stir the settled organic matter, so as to promote the organic matter to fully contact and react with the microorganisms in the biogas slurry, reduce the formation of sediment, accelerate the fermentation reaction, and greatly improve the fermentation reaction effect of the device. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure between the fermentation tank and the lifting cylinder of this utility model;

[0017] Figure 3 This is a schematic diagram of the drive mechanism structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure between the stirring blade and the servo motor of this utility model.

[0019] In the diagram: 1. Fermentation tank; 2. Servo motor; 3. Gas outlet pipe; 4. Feed pipe; 5. Support frame; 6. Lifting cylinder; 7. Auxiliary gear; 8. Transmission gear; 9. Internal gear; 10. Stirring blade; 11. Lifting slurry; 12. Slag outlet pipe; 13. Transmission rod. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0021] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0022] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0023] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0024] Example 1

[0025] Please refer to Figures 1-4 A high-efficiency biogas fermentation double-membrane fermenter includes a fermenter body 1. An outlet pipe 3 and a feed pipe 4 are fixed to the top of the fermenter body 1, and a slag outlet pipe 12 is fixed to the bottom of the fermenter body 1. A lifting cylinder 6 is rotatably connected inside the fermenter body 1. Several lifting slurries 11 are fixed to the inner side of the lifting cylinder 6. A transmission rod 13 is rotatably connected inside the fermenter body 1 and located inside the lifting cylinder 6. Several stirring blades 10 are fixed to the outer side of the transmission rod 13. Several support frames 5 are fixed to the bottom of the fermenter body 1. A drive mechanism for reversing the rotation of the lifting cylinder 6 and the transmission rod 13 is provided at the top of the stirring blades 10.

[0026] During use, organic matter is placed in the lifting cylinder 6 along the feed pipe 4, allowing the organic matter to fully react with the microorganisms in the biogas slurry. The biogas fermented inside the fermentation tank 1 is discharged from the gas outlet pipe 3. The drive mechanism is activated to drive the lifting cylinder 6 and the stirring blade 10 to rotate in opposite directions. The lifting cylinder 6 drives the lifting slurry 11 to lift the organic matter settled at the bottom of the fermentation tank 1 upwards, allowing the settled organic matter to re-enter the tank. This effectively mixes the organic matter and biogas slurry inside the fermentation tank 1, accelerating the fermentation reaction and promoting the fermentation effect.

[0027] The drive mechanism includes a servo motor 2, an auxiliary gear 7, a transmission gear 8, and an internal gear 9. The top of the lifting cylinder 6 is fixed with the internal gear 9, and the outer side of the internal gear 9 is rotatably connected to the fermentation tank 1. The top of the fermentation tank 1 is fixed with the servo motor 2, and the inner side of the internal gear 9 is meshed with the transmission gear 8. The output end of the servo motor 2 passes through the fermentation tank 1 and is fixed with the transmission gear 8. The top of the transmission rod 13 is fixed with the auxiliary gear 7, and the outer side of the transmission gear 8 is meshed with the auxiliary gear 7. The lifting cylinder 6 and the stirring blade 10 rotate in opposite directions.

[0028] Specifically, when it is necessary to promote the fermentation effect inside the fermentation tank 1, the servo motor 2 is started to drive the transmission gear 8 to rotate. The transmission gear 8 drives the internal gear 9 and the lifting cylinder 6 to rotate. At this time, the lifting cylinder 6 drives the lifting slurry 11 to lift the precipitated organic matter and put it back into the tank. Then, the transmission gear 8 drives the transmission rod 13 and the stirring blade 10 to rotate. At this time, the lifting cylinder 6 and the lifting slurry 11 rotate in the opposite direction to the transmission rod 13, so that the lifting slurry 11 lifts the precipitated organic matter. At the same time, the stirring blade 10 rotates in the opposite direction to the lifting slurry 11 to stir the precipitated organic matter, so as to promote the organic matter to fully contact and react with the microorganisms in the biogas slurry, reduce the formation of sediment, accelerate the fermentation reaction, and greatly improve the fermentation effect of the device.

[0029] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. The present utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A high-efficiency biogas fermentation double-membrane fermenter, characterized in that, The fermentation tank (1) includes a fermentation tank body (1), a lifting cylinder (6) is rotatably connected inside the fermentation tank body (1), a number of lifting slurries (11) are fixed inside the lifting cylinder (6), a transmission rod (13) is rotatably connected inside the fermentation tank body (1) and located inside the lifting cylinder (6), a number of stirring blades (10) are fixed outside the transmission rod (13), and a drive mechanism for reversing the rotation of the lifting cylinder (6) and the transmission rod (13) is provided at the top of the stirring blades (10).

2. The double-membrane fermenter for high-efficiency biogas fermentation according to claim 1, characterized in that, The top of the fermentation tank (1) is fixed with an air outlet pipe (3) and a feed pipe (4), and the bottom of the fermentation tank (1) is fixed with a slag outlet pipe (12).

3. The double-membrane fermenter for high-efficiency biogas fermentation according to claim 1, characterized in that, The drive mechanism includes a servo motor (2), an auxiliary gear (7), a transmission gear (8), and an internal gear (9). The top end of the lifting cylinder (6) is fixed with an internal gear (9). The outer side of the internal gear (9) is rotatably connected to the fermentation tank (1). The top end of the fermentation tank (1) is fixed with a servo motor (2). The inner side of the internal gear (9) is meshed with the transmission gear (8). The output end of the servo motor (2) passes through the fermentation tank (1) and is fixed with the transmission gear (8).

4. The double-membrane fermenter for high-efficiency biogas fermentation according to claim 3, characterized in that, The auxiliary gear (7) is fixed at the top of the transmission rod (13), and the outer side of the transmission gear (8) is meshed with the auxiliary gear (7).

5. The double-membrane fermenter for high-efficiency biogas fermentation according to claim 3, characterized in that, The lifting cylinder (6) rotates in the opposite direction to the stirring blade (10).

6. The double-membrane fermenter for high-efficiency biogas fermentation according to claim 1, characterized in that, Several support frames (5) are fixed at the bottom of the fermentation tank (1).

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