Anaerobic fermentation biogas production device

Abstract

The utility model relates to the technical field of anaerobic fermentation, in particular to an anaerobic fermentation biogas production device which comprises a base, sleeves are symmetrically arranged above the base, the sleeves are sequentially provided with a hydrolysis assembly and a fermentation assembly from left to right, the hydrolysis assembly comprises a hydrolysis cylinder and a first top cover arranged at the top of the hydrolysis cylinder, and a transverse plate is arranged on the inner wall of the hydrolysis cylinder close to the top. Motors are arranged on the upper surfaces of the transverse plates; according to the anaerobic fermentation biogas production device, by arranging the base with the sleeve, rapid insertion and installation of the hydrolysis cylinder and the fermentation cylinder are facilitated, the top of the hydrolysis cylinder is matched with the first top cover with the conveying pump, the side wall of the fermentation cylinder is provided with the connecting pipe with the one-way valve, and the conveying pump is connected with the connecting pipe through the extraction pipe; hydrolysate in the hydrolysis cylinder and biogas are conveyed into the fermentation cylinder, the temperature in the hydrolysis cylinder is detected in real time under the cooperation of the first temperature sensor, and the temperature in the fermentation cylinder is detected under the cooperation of the second temperature sensor.

Description

Technical Field

[0001] This utility model relates to the field of anaerobic fermentation technology, specifically to an anaerobic fermentation biogas production device. Background Technology

[0002] The pollution caused by livestock and poultry manure is becoming increasingly serious. If a large amount of livestock and poultry manure is not treated in time, it can easily cause pollution of soil, water and air. Livestock and poultry manure can be used as raw material to produce biogas through anaerobic fermentation. Biogas can be used to generate electricity or purified into biogas for vehicle, residential or corporate use. At the same time, biogas residue and biogas liquid can also be used to prepare good organic fertilizer.

[0003] Utility model patent CN215050185U discloses a biogas production device for microbial anaerobic fermentation, comprising: a tank; a feeding device connected to the tank for feeding; a gas collecting device connected to the tank for collecting gas; a discharging device connected to the tank for discharging; a stirring device including a stirring motor disposed on the top of the tank, a metal stirring rod connected to the stirring motor and extending into the tank body, and an impeller disposed on the metal stirring rod; and a power supply device including a constant voltage power supply and a conductive device disposed in the tank body, wherein the positive terminal of the constant voltage power supply is connected to the metal stirring rod, and the negative terminal is connected to the conductive device.

[0004] The above-mentioned technical solutions enhance the activity of functional microorganisms during anaerobic fermentation, thereby increasing the methane yield and purity of anaerobic fermentation, promoting the degradation efficiency of organic matter, and effectively shortening the reaction cycle and reducing operating costs. However, they cannot be used for multi-stage anaerobic fermentation to produce biogas, and it is not convenient to monitor the stable changes inside the fermenter in real time, nor is it convenient to maintain the fermentation and biogas production within a constant temperature range. Utility Model Content

[0005] The purpose of this invention is to provide an anaerobic fermentation biogas production device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An anaerobic fermentation biogas production device includes a base, with sleeves symmetrically arranged above the base. A hydrolysis component and a fermentation component are sequentially installed on the sleeves from left to right. The hydrolysis component includes a hydrolysis cylinder and a first top cover installed on the top of the hydrolysis cylinder. A horizontal plate is provided on the inner wall of the hydrolysis cylinder near the top. A motor is provided on the upper surface of the horizontal plate, and a main shaft is provided at the end of the output shaft of the motor. Several stirring rods are provided on the main shaft. A first display screen is provided on the front end face of the first top cover, and a first temperature sensor is provided at the rear end of the first display screen. A delivery pump is provided on the top of the first top cover, and one end of the extraction pipe of the delivery pump extends into the interior of the hydrolysis cylinder. A first heating rod is also provided at the rear end of the first top cover. The fermentation component includes a fermentation cylinder and a second top cover inserted into the top of the fermentation cylinder.

[0008] Preferably, a connecting pipe is provided on one side of the fermentation tank, and a one-way valve is provided on the connecting pipe. The top of the connecting pipe is inserted into the bottom of the extraction pipe.

[0009] In this invention, the connection pipe and the one-way valve help guide the hydrolysis products and biogas extracted from the hydrolysis cylinder into the fermentation cylinder for continuous fermentation. With the help of the one-way valve, the backflow inside the fermentation cylinder is reduced.

[0010] Preferably, the sleeve is cylindrical, the inside of the sleeve is a hollow cone, and the width of the inner wall of the sleeve is adapted to the width of the outer wall of the hydrolysis cylinder and the fermentation cylinder, respectively.

[0011] In this invention, the sleeve facilitates the quick connection and installation of the hydrolysis cylinder and the fermentation cylinder.

[0012] Preferably, the two ends of the horizontal plate are welded and fixed to the hydrolysis cylinder, the motor is fixedly connected to the horizontal plate by screws, the output shaft of the motor is welded and fixed to the main shaft, the stirring rods are evenly distributed, the bottom of the main shaft is provided with a scraper, and the outer wall of the scraper is in close contact with the inner wall of the hydrolysis cylinder.

[0013] In this invention, the motor is connected to an external power source and the control switch is activated. With the cooperation of the main shaft, it drives multiple stirring rods to rotate, stirring the mixture of poultry and livestock manure inside. With the cooperation of the scraper, the sticking to the inner wall of the hydrolysis cylinder is reduced, which would affect the uniform fermentation process.

[0014] Preferably, the first display screen and the first top cover are fixedly connected by screws, the first temperature sensor and the first display screen are fixedly connected by screws, the first top cover is also provided with a conveying pipe, the first heating rod is fixedly connected to the first top cover by screws, the bottom of the first top cover is also provided with a first limiting ring, and the top of the first limiting ring is bonded and fixed to the first top cover.

[0015] In this invention, with the cooperation of the first display screen and the first temperature sensor, the stable changes inside the hydrolysis cylinder can be monitored in real time, and the internal temperature can be displayed on the first display screen. With the cooperation of the first heating rod, the internal temperature of the hydrolysis cylinder can be heated. When the temperature is between 25-28℃, the first heating rod stops heating. When the temperature is below 25℃, the heating rod starts to rise. With the cooperation of the first limiting ring, the first top cover can be stably inserted and connected to the hydrolysis cylinder.

[0016] Preferably, the delivery pump is fixedly connected to the first top cover by screws, and the water-drawing end of the extraction pipe passes through the horizontal plate and extends into the hydrolysis cylinder.

[0017] In this invention, the delivery pump is connected to an external power source, and with the help of a control switch, it controls the continuous delivery of hydrolysis products and biogas from inside the hydrolysis cylinder to the fermentation cylinder. The extraction pipe extends into the hydrolysis cylinder without contacting the scraper or stirring rod, thus reducing the impact of contact.

[0018] Preferably, the second top cover is provided with an exhaust pipe at the top, a second display screen is provided on the front end face of the second top cover, a second temperature sensor is provided inside the second top cover, the second temperature sensor is fixedly connected to the second display screen by screws, and a second heating rod is provided on the rear side of the second top cover.

[0019] In this invention, the exhaust pipe helps to transport the biogas generated inside the fermentation tank to where it is needed. With the cooperation of the second display screen and the second temperature sensor, the inside of the fermentation tank is monitored in real time. The second heating rod is connected to an external power source to continuously heat the inside of the fermentation tank. When the internal temperature is between 35 and 40°C, the second heating rod stops starting. When the temperature inside the fermentation tank is below 35°C, the second heating rod starts heating.

[0020] Preferably, the bottom of the second top cover is provided with a second limiting ring, and the second limiting ring is bonded and fixed to the second top cover.

[0021] In this invention, the second limiting ring helps to ensure a tight connection between the second top cover and the fermentation cylinder, thereby increasing the stability of the overall assembly.

[0022] Compared with the prior art, the beneficial effects of this utility model are:

[0023] 1. This utility model, by setting a base with a sleeve, facilitates the quick insertion and installation of the hydrolysis cylinder and the fermentation cylinder. The top of the hydrolysis cylinder is fitted with a first top cover with a delivery pump, and the side wall of the fermentation cylinder has a connecting pipe with a one-way valve. The delivery pump is connected to the connecting pipe through an extraction pipe. With the help of the extraction pipe, the hydrolysis products and biogas in the hydrolysis cylinder are delivered to the fermentation cylinder. With the help of a first temperature sensor, the internal temperature of the hydrolysis cylinder is detected in real time, and with the help of a first heating rod, the internal temperature of the hydrolysis cylinder is controlled. With the help of a second temperature sensor, the internal temperature of the fermentation cylinder is detected, and with the help of a second heating rod, the internal temperature of the fermentation cylinder is controlled.

[0024] 2. This utility model, by incorporating a horizontal plate with a motor and several stirring rods on the motor's output shaft, uniformly mixes the poultry and livestock manure mixture inside the hydrolysis cylinder. With the aid of a scraper, sediment is reduced, minimizing its impact on the overall hydrolysis and fermentation process. The conveying pipe facilitates the continuous addition of external poultry and livestock manure mixture. A first limiting ring facilitates the insertion and installation of the first top cover into the hydrolysis cylinder, and a second limiting ring facilitates the insertion and installation of the second top cover into the fermentation cylinder. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0026] Figure 2 This is a schematic diagram of the base structure of this utility model;

[0027] Figure 3 This is a schematic diagram of the hydrolysis component structure of this utility model;

[0028] Figure 4 This is a bottom view of the hydrolysis component of this utility model;

[0029] Figure 5 This is a schematic diagram of the fermentation component structure of this utility model;

[0030] Figure 6 This is a bottom view of the fermentation component of this utility model;

[0031] Figure 7 This is a schematic diagram of the overall cross-sectional structure of this utility model.

[0032] The meanings of the labels in the diagram are as follows:

[0033] 1. Base; 10. Sleeve;

[0034] 2. Hydrolysis assembly; 20. Hydrolysis cylinder; 21. Horizontal plate; 22. Motor; 220. Main shaft; 2200. Stirring rod; 221. Scraper; 23. First top cover; 230. First display screen; 2300. First temperature sensor; 231. Conveying pipe; 232. First heating rod; 233. First limiting ring;

[0035] 3. Fermentation components; 30. Fermentation cylinder; 31. Connecting pipe; 310. One-way valve; 32. Second top cover; 320. Exhaust pipe; 33. Second display screen; 330. Second temperature sensor; 34. Second heating rod; 35. Second limiting ring;

[0036] 4. Transfer pump; 40. Extraction pipe. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0038] Please see Figures 1-7 This embodiment provides a technical solution:

[0039] An anaerobic fermentation biogas production device includes a base 1, with sleeves 10 symmetrically arranged above the base 1. The sleeves 10 are cylindrical and have a hollow conical interior. The width of the inner wall of the sleeves 10 is adapted to the width of the outer walls of the hydrolysis cylinder 20 and the fermentation cylinder 30, respectively.

[0040] In this invention, the sleeve 10 facilitates the quick connection and installation of the hydrolysis cylinder 20 and the fermentation cylinder 30.

[0041] It should be noted that the sleeve 10 is equipped with a hydrolysis component 2 and a fermentation component 3 from left to right. The hydrolysis component 2 includes a hydrolysis cylinder 20 and a first top cover 23 installed on the top of the hydrolysis cylinder 20. A horizontal plate 21 is provided on the inner wall of the hydrolysis cylinder 20 near the top. A motor 22 is provided on the upper surface of the horizontal plate 21. A main shaft 220 is provided at the end of the output shaft of the motor 22. Several stirring rods 2200 are provided on the main shaft 220. The two ends of the horizontal plate 21 are welded and fixed to the hydrolysis cylinder 20 respectively. The motor 22 is fixedly connected to the horizontal plate 21 by screws. The output shaft of the motor 22 is welded and fixed to the main shaft 220. The stirring rods 2200 are evenly distributed. A scraper 221 is provided at the bottom of the main shaft 220. The outer wall of the scraper 221 is tightly attached to the inner wall of the hydrolysis cylinder 20.

[0042] In this invention, the motor 22 is connected to an external power source and the control switch is activated. With the cooperation of the main shaft 220, it drives multiple stirring rods 2200 to rotate, stirring the mixture of poultry and livestock manure inside. With the cooperation of the scraper 221, the sticking to the inner wall of the hydrolysis cylinder 20 is reduced, which affects the uniform fermentation.

[0043] Furthermore, a first display screen 230 is provided on the front end surface of the first top cover 23, and a first temperature sensor 2300 is provided at the rear end of the first display screen 230. The first display screen 230 and the first top cover 23 are fixedly connected by screws, and the first temperature sensor 2300 and the first display screen 230 are fixedly connected by screws. The first top cover 23 is also provided with a conveying pipe 231, and a first heating rod 232 is fixedly connected to the first top cover 23 by screws. The bottom of the first top cover 23 is also provided with a first limiting ring 233, and the top of the first limiting ring 233 is bonded and fixed to the first top cover 23.

[0044] In this invention, with the cooperation of the first display screen 230 and the first temperature sensor 2300, the stable changes inside the hydrolysis cylinder 20 can be monitored in real time, and the internal temperature can be displayed on the first display screen 230. With the cooperation of the first heating rod 232, the internal temperature of the hydrolysis cylinder 20 can be heated. When the temperature is between 25-28℃, the first heating rod 232 stops heating. When the temperature is below 25℃, the heating rod 232 starts to rise. With the cooperation of the first limiting ring 233, the first top cover 23 and the hydrolysis cylinder 20 can be stably inserted and connected.

[0045] Specifically, the top of the first top cover 23 is equipped with a delivery pump 4. One end of the extraction pipe 40 of the delivery pump 4 extends into the hydrolysis cylinder 20. The delivery pump 4 is fixedly connected to the first top cover 23 by screws. The water-drawing end of the extraction pipe 40 passes through the horizontal plate 21 and extends into the hydrolysis cylinder 20.

[0046] In this invention, the delivery pump 4 is connected to an external power source. With the help of a control switch, it controls the continuous delivery of hydrolysis products and biogas inside the hydrolysis cylinder 20 to the fermentation cylinder 30. The extraction pipe 40 extends into the hydrolysis cylinder 20 and does not come into contact with the scraper 221 or the stirring rod 2200, thus reducing the impact of contact.

[0047] Secondly, a first heating rod 232 is provided at the rear end of the first top cover 23, and the fermentation component 3 includes a fermentation cylinder 30 and a second top cover 32 that is inserted and installed on the top of the fermentation cylinder 30.

[0048] It is worth adding that the second top cover 32 is provided with an exhaust pipe 320 at the top, a second display screen 33 is provided on the front surface of the second top cover 32, a second temperature sensor 330 is provided inside the second top cover 32, the second temperature sensor 330 is fixedly connected to the second display screen 33 by screws, and a second heating rod 34 is provided on the rear side of the second top cover 32.

[0049] In this invention, the exhaust pipe 320 helps to transport the biogas generated inside the fermentation cylinder 30 to where it is needed. The second display screen 33 and the second temperature sensor 330 work together to monitor the stability inside the fermentation cylinder 30 in real time. The second heating rod 34 is connected to an external power source to continuously heat the inside of the fermentation cylinder 30. When the internal temperature is between 35 and 40°C, the second heating rod 34 stops starting. When the temperature inside the fermentation cylinder 30 is below 35°C, the second heating rod 34 starts heating.

[0050] Furthermore, a connecting pipe 31 is provided on one side of the fermentation tank 30, and a one-way valve 310 is provided on the connecting pipe 31. The top of the connecting pipe 31 is inserted into the bottom of the extraction pipe 40.

[0051] In this invention, the connection pipe 31 and the one-way valve 310 are provided to help guide the hydrolysis products and biogas extracted from the hydrolysis cylinder 20 into the fermentation cylinder 30 for continuous fermentation. With the cooperation of the one-way valve 310, the backflow inside the fermentation cylinder 30 is reduced.

[0052] In addition, a second limiting ring 35 is provided at the bottom of the second top cover 32, and the second limiting ring 35 is bonded and fixed to the second top cover 32.

[0053] In this invention, the second limiting ring 35 helps to tightly connect the second top cover 32 and the fermentation cylinder 30, increasing the stability of the overall assembly.

[0054] In this embodiment of the anaerobic fermentation biogas production device, the user first installs the hydrolysis cylinder 20 and fermentation cylinder 30 correspondingly in the sleeve 10. Then, the horizontal plate 21 with motor 22 is fixed in the hydrolysis cylinder 20, and the scraper 221 is connected to the main shaft 220. Then, the first top cover 23 with conveying pipe 231 is inserted and connected to the hydrolysis cylinder 20 through the first limiting ring 233. The first display screen 230 with first temperature sensor 2300 is connected to the first top cover 23, and the first heating rod 232 is fixed in place. The first top cover 23 is then fixed on the top of the first top cover 23. The second display screen 33 with the second temperature sensor 330 is then combined and installed with the second top cover 32, and the second heating rod 34 is combined and connected with the second top cover 32. Then, the second top cover 32 is inserted and installed with the fermentation cylinder 30 through the second limiting ring 35. The end of the extraction pipe 40 is connected to the top of the connecting pipe 31 with the one-way valve 310, so that the hydrolysis products and biogas at the bottom of the hydrolysis cylinder 20 are pumped into the fermentation cylinder 30.

[0055] When fermentation is required, the mixture of external poultry and livestock manure is manually added to the hydrolysis cylinder 20 through the conveying pipe 231. Then, the motor 22 is connected to an external power source, and the stirring rod 2200 continuously mixes and stirs the internal components. The first heating rod 232 is connected to a power source to continuously heat the internal components. The first display screen 230 is connected to a power source to display the temperature detected by the first temperature sensor 230 in real time. When the temperature is between 25-28℃, the first heating rod 232 stops heating. When the temperature is below 25℃, it starts heating again. Then, the conveying pump 4 is connected to a power source to continuously pump the hydrolysis products and biogas into the fermentation cylinder 30. The second heating rod 34 is connected to a power source to continuously heat the inside of the fermentation cylinder 30. The second display screen 33 is connected to a power source to display the temperature detected by the second temperature sensor 330 in real time. When the internal temperature is between 35-40℃, the second heating rod 34 stops heating. When the temperature in the fermentation cylinder 30 is below 35℃, the second heating rod 34 starts heating again. Finally, the biogas produced is discharged from the exhaust pipe 320 to the location where it is needed. The overall assembly is convenient to install and operate.

Claims

1. An anaerobic fermentation biogas production device, comprising a base (1), wherein sleeves (10) are symmetrically arranged above the base (1), and a hydrolysis component (2) and a fermentation component (3) are sequentially installed on the sleeves (10) from left to right, characterized in that: The hydrolysis assembly (2) includes a hydrolysis cylinder (20) and a first top cover (23) installed on the top of the hydrolysis cylinder (20). A horizontal plate (21) is provided on the inner wall of the hydrolysis cylinder (20) near the top. A motor (22) is provided on the upper surface of the horizontal plate (21). A main shaft (220) is provided at the end of the output shaft of the motor (22). A plurality of stirring rods (2200) are provided on the main shaft (220). A first display screen (230) is provided on the front end face of the first top cover (23). A first temperature sensor (2300) is provided at the rear end of the first display screen (230). A delivery pump (4) is provided on the top of the first top cover (23). One end of the extraction pipe (40) of the delivery pump (4) extends into the interior of the hydrolysis cylinder (20). A first heating rod (232) is also provided at the rear end of the first top cover (23). The fermentation assembly (3) includes a fermentation cylinder (30) and a second top cover (32) inserted and installed on the top of the fermentation cylinder (30).

2. The anaerobic fermentation biogas production device according to claim 1, characterized in that: A connecting pipe (31) is also provided on one side of the fermentation tank (30). A one-way valve (310) is provided on the connecting pipe (31). The top of the connecting pipe (31) is inserted into the bottom of the extraction pipe (40).

3. The anaerobic fermentation biogas production device according to claim 1, characterized in that: The sleeve (10) is cylindrical, and the inside of the sleeve (10) is hollow conical. The width of the inner wall of the sleeve (10) is adapted to the width of the outer wall of the hydrolysis cylinder (20) and the fermentation cylinder (30).

4. The anaerobic fermentation biogas production device according to claim 1, characterized in that: The two ends of the horizontal plate (21) are welded and fixed to the hydrolysis cylinder (20). The motor (22) is fixedly connected to the horizontal plate (21) by screws. The output shaft of the motor (22) is welded and fixed to the main shaft (220). The stirring rods (2200) are evenly distributed. The bottom of the main shaft (220) is provided with a scraper (221). The outer wall of the scraper (221) is tightly attached to the inner wall of the hydrolysis cylinder (20).

5. The anaerobic fermentation biogas production device according to claim 1, characterized in that: The first display screen (230) is fixedly connected to the first top cover (23) by screws. The first temperature sensor (2300) is fixedly connected to the first display screen (230) by screws. The first top cover (23) is also provided with a conveying pipe (231). The first heating rod (232) is fixedly connected to the first top cover (23) by screws. The bottom of the first top cover (23) is also provided with a first limiting ring (233). The top of the first limiting ring (233) is bonded and fixed to the first top cover (23).

6. The anaerobic fermentation biogas production device according to claim 1, characterized in that: The delivery pump (4) is fixedly connected to the first top cover (23) by screws. The end of the extraction pipe (40) that draws water passes through the horizontal plate (21) and extends into the hydrolysis cylinder (20).

7. The anaerobic fermentation biogas production device according to claim 1, characterized in that: The second top cover (32) is provided with an exhaust pipe (320) at the top, a second display screen (33) is provided on the front surface of the second top cover (32), a second temperature sensor (330) is provided inside the second top cover (32), the second temperature sensor (330) is fixedly connected to the second display screen (33) by screws, and a second heating rod (34) is provided on the rear side of the second top cover (32).

8. The anaerobic fermentation biogas production device according to claim 1, characterized in that: The bottom of the second top cover (32) is provided with a second limiting ring (35), and the second limiting ring (35) is bonded and fixed to the second top cover (32).

Images