A fermentation reactor for treating livestock manure by using thermophilic bacteria

Abstract

The utility model relates to excrement treatment technical field especially utilizes a kind of fermentation reactor for treating livestock and poultry excrement by thermophilic bacteria group. For the technical problem that the decomposition speed of thermophilic bacteria group to organic matter in excrement is reduced due to insufficient temperature in reactor. A kind of fermentation reactor for treating livestock and poultry excrement by thermophilic bacteria group, including ladder stand, the front of ladder stand is provided with reactor, the upper side of reactor is detachably installed with cover plate, cover plate is communicated with feed pipe and exhaust pipe, the side wall of reactor is communicated with liquid discharge pipe and discharge pipe, filter screen is installed in reactor, and the side wall in reactor is installed with electric heating tube. The utility model heats excrement in reactor by electric heating tube, activates thermophilic bacteria group in reactor, speeds up the decomposition speed of organic matter in excrement, and reduces excrement volume, convenient for subsequent processing, and the temperature of excrement is improved simultaneously, and parasitic egg and pathogenic bacteria in excrement are killed.

Description

Technical Field

[0001] This utility model relates to the field of manure treatment technology, and in particular to a fermentation reactor for treating livestock and poultry manure using thermophilic bacteria. Background Technology

[0002] Livestock and poultry manure is a mixture of feces, urine, and flushing water produced during the livestock and poultry breeding process. It is a resource that has been misplaced and has the dual characteristics of being both a pollution and a resource. That is, after recycling and treatment, it can be transformed from waste into a valuable and reusable resource.

[0003] The core step in the current treatment of fecal waste involves fermenting the fecal waste with thermophilic bacteria in a reactor to decompose the organic matter in the fecal waste. These thermophilic bacteria grow and reproduce by feeding on feces and consuming oxygen. However, these thermophilic bacteria can only exert their metabolic activity at a certain temperature. If the temperature of their environment is not high enough, their decomposition rate of organic matter in the fecal waste will decrease significantly, thus affecting the speed of fecal waste treatment. Utility Model Content

[0004] In order to overcome the technical problem that insufficient temperature in the reactor leads to a decrease in the decomposition rate of organic matter in manure by thermophilic bacteria, thus reducing the rate of manure treatment by thermophilic bacteria, this utility model provides a fermentation reactor for treating livestock and poultry manure using thermophilic bacteria.

[0005] The technical implementation scheme of this utility model is as follows: a fermentation reactor for treating livestock and poultry manure using thermophilic bacteria, including a ladder frame, a reactor set at the front of the ladder frame, a cover plate detachably installed on the upper side of the reactor, the cover plate being connected to a feed pipe and an exhaust pipe, a drain pipe and a discharge pipe being connected to the side wall of the reactor, a filter screen installed inside the reactor, the filter screen being located between the drain pipe and the discharge pipe, and an electric heating tube installed on the side wall inside the reactor.

[0006] Furthermore, it is particularly preferred that the filter screen is arranged at an angle inside the reactor, and the discharge pipe is located above the lowest point of the filter screen.

[0007] Furthermore, it is particularly preferred that the bottom of the reactor is truncated cone-shaped, with the side with the smaller diameter located on the top.

[0008] Furthermore, it is particularly preferred that a drive motor is mounted on the upper side of the cover plate via a bracket, and the reactor and the cover plate are connected to a rotating shaft for rotation. Two sets of circumferentially evenly distributed stirring blades are mounted on the rotating shaft, with the stirring blades located on the upper side of the filter screen.

[0009] Furthermore, it is particularly preferred that the two sets of circumferentially evenly distributed stirring blades are arranged at an angle on the rotating shaft, and the two angles are in opposite directions.

[0010] Furthermore, it is particularly preferred that the cover plate is equipped with circumferentially evenly distributed electric telescopic rods, the telescopic ends of which are equipped with connectors, the connectors are rotatably connected to rotating rods, and the rotating rods are fixedly connected to a stirring plate, which is located on the upper side of the filter screen.

[0011] Furthermore, it is particularly preferred that the stirring plate has evenly distributed conical through holes, with the side with the smaller diameter located on the upper side.

[0012] Furthermore, it is particularly preferred that the rotating rod is equipped with a one-way gear and the electric heating tube is equipped with circumferentially evenly distributed toothed plates, with the one-way gear meshing with the adjacent toothed plates.

[0013] Furthermore, it is particularly preferred that a connecting ring is installed at the bottom of the reactor, the connecting ring is rotatably connected to the rotating shaft, the connecting ring is arranged at an angle inside the reactor, and the angle and direction of the angle of the connecting ring are consistent with the filter screen. The connecting ring is slidably connected to circumferentially evenly distributed sliding blocks, and a spring is connected between the sliding blocks and the connecting ring. The circumferentially evenly distributed sliding blocks are all connected to the filter screen. A fixing plate is installed on the rotating shaft, the fixing plate is located below the connecting ring, and a fixing rod is installed on the upper side of the fixing plate. A ball is ball-connected to the upper end of the fixing rod, and the ball contacts the lower side of the connecting ring.

[0014] The beneficial effects of this invention are: This invention heats the fecal waste in the reactor using an electric heating tube, which activates the thermophilic bacteria in the reactor, accelerates the decomposition of organic matter in the fecal waste, and reduces the volume of the fecal waste, making it easier for subsequent treatment. At the same time, by increasing the temperature of the fecal waste, it kills parasite eggs and pathogens in the fecal waste.

[0015] This invention uses the telescopic end of an electric telescopic rod to move the connecting parts up and down, causing the fecal matter inside the reactor to be in a disordered state. This ensures that the bacteria and fecal matter in the reactor come into uniform contact, preventing the decomposition rate of organic matter in the fecal matter from decreasing due to uneven contact. It also prevents some bacteria from becoming inactive due to excessively high temperatures caused by constant contact with the electric heating element.

[0016] This invention uses the output shaft of a drive motor to drive two sets of stirring blades to rotate clockwise, stirring the fecal matter in the reactor and further ensuring that the bacteria and fecal matter in the reactor come into uniform contact.

[0017] This invention uses a ball bearing to compress the connecting ring, causing the connecting ring to move up and down repeatedly, thereby causing the filter screen to vibrate and preventing solid waste in the sewage from clogging the filter screen. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0019] Figure 2This is a three-dimensional structural diagram of the reaction vessel, cover plate, and feed pipe of this utility model.

[0020] Figure 3 This is a three-dimensional structural diagram of the drive motor, rotating shaft, and stirring blade of this utility model.

[0021] Figure 4 This is a three-dimensional structural diagram of the connector, rotating rod, and stirring plate of this utility model.

[0022] Figure 5 This is a three-dimensional structural diagram of the rotating shaft, connecting ring, and sliding block of this utility model.

[0023] Figure 6 This is a three-dimensional structural diagram of the fixing plate, fixing rod, and rolling ball of this utility model.

[0024] The components in the diagram are labeled as follows: 1-ladder frame, 2-reactor, 3-cover plate, 4-feed pipe, 5-exhaust pipe, 6-drain pipe, 7-discharge pipe, 8-filter screen, 9-electric heating element, 10-drive motor, 11-rotating shaft, 12-stirring blade, 13-electric telescopic rod, 14-connector, 15-rotating rod, 16-stirring plate, 17-one-way gear, 18-tooth plate, 19-connecting ring, 20-sliding block, 21-fixed plate, 22-fixed rod, 23-rolling ball. Detailed Implementation

[0025] The preferred technical solution of this utility model will be described in detail below with reference to the accompanying drawings.

[0026] A fermentation reactor that utilizes thermophilic bacteria to treat livestock and poultry manure, such as Figure 1 and Figure 2As shown, the reactor includes a ladder frame 1, with a reactor 2 located at the front of the ladder frame 1. A cover plate 3 is detachably installed on the upper side of the reactor 2. The cover plate 3 is connected to an inlet pipe 4 and an exhaust pipe 5. The inlet pipe 4 allows manure to enter the reactor 2, while the exhaust pipe 5 discharges the gases (mainly methane and carbon dioxide) produced by the thermophilic bacteria in the reactor 2 after treating the manure. The exhaust pipe 5 is connected to a gas treatment device (an existing device, not part of the reactor 2). A drain pipe 6 and a discharge pipe 7 are connected to the side wall of the reactor 2. The drain pipe 6 discharges the remaining liquid after fermentation in the reactor 2. The feed pipe 7 is used to discharge the solids remaining in the reactor 2 after fermentation. A filter screen 8 is installed in the reactor 2. The filter screen 8 is used to separate the solids and liquids remaining in the reactor 2 after fermentation. The filter screen 8 is arranged at an angle in the reactor 2, and the feed pipe 7 is located above the lowest point of the filter screen 8, so as to facilitate the discharge of solids by the feed pipe 7. The filter screen 8 is located between the liquid discharge pipe 6 and the feed pipe 7. The bottom of the reactor 2 is set as a frustum, and the side with the smaller diameter is located on the upper side, so as to facilitate the discharge of liquid by the liquid discharge pipe 6. An electric heating tube 9 is installed on the side wall of the reactor 2. The electric heating tube 9 is used to heat the manure in the reactor 2.

[0027] like Figure 2 and Figure 3 As shown, a drive motor 10 is mounted on the center of the upper side of the cover plate 3 via a bracket. The center of the reactor 2 and the cover plate 3 are connected to a rotating shaft 11. Two sets of stirring blades 12 are mounted on the rotating shaft 11, each set containing four stirring blades. The stirring blades 12 are located on the upper side of the filter screen 8. The two sets of circumferentially evenly distributed stirring blades 12 are arranged at an angle on the rotating shaft 11, and their angles are opposite. Specifically, in the clockwise direction (from the perspective of the top view), the lower set of stirring blades 12 is further forward than the upper set, while the upper set of stirring blades 12 is the opposite.

[0028] like Figures 2-4 As shown, the cover plate 3 is equipped with four circumferentially evenly distributed electric telescopic rods 13. The telescopic ends of the electric telescopic rods 13 are located inside the reactor 2. The telescopic ends of the electric telescopic rods 13 are equipped with connectors 14. Connectors 14 are rotatably connected to rotating rods 15. Stirring plates 16 are fixedly connected to rotating rods 15. Stirring plates 16 have evenly distributed conical through holes, with the smaller diameter side located on the upper side, which is used to assist the stirring plates 16 in rotating and resetting. Stirring plates 16 are located on the upper side of the filter screen 8.

[0029] like Figure 3 and Figure 4 As shown, the rotating rod 15 is equipped with a one-way gear 17, and the electric heating tube 9 is equipped with four toothed plates 18 evenly distributed in the circumference. The one-way gear 17 meshes with the adjacent toothed plates 18. The one-way gear 17 will only rotate when it meshes with the toothed plates 18 during the downward movement of the stirring plate 16.

[0030] like Figure 3 , Figure 5 and Figure 6 As shown, a connecting ring 19 is installed at the bottom of the reactor 2. The connecting ring 19 is rotatably connected to the rotating shaft 11. The connecting ring 19 is arranged at an angle inside the reactor 2, and the angle and direction of the angle of the connecting ring 19 are consistent with those of the filter screen 8. The connecting ring 19 is slidably connected to four circumferentially evenly distributed sliding blocks 20, and a spring is connected between the sliding blocks 20 and the connecting ring 19. The circumferentially evenly distributed sliding blocks 20 are all connected to the filter screen 8. The rotating shaft 11 is equipped with a fixing plate 21, which is located below the connecting ring 19. A fixing rod 22 is installed on the upper side of the fixing plate 21. A ball bearing 23 is ball-connected to the upper end of the fixing rod 22, and the ball bearing 23 contacts the lower side of the connecting ring 19.

[0031] When treating livestock manure, manure is added to the reactor 2 through the feed pipe 4, and the electric heating tube 9, drive motor 10 and four electric telescopic rods 13 are activated.

[0032] The electric heating tube 9 heats the fecal waste in the reactor 2, raising the temperature of the fecal waste to 40° to 60°, thereby activating the thermophilic bacteria in the reactor 2, accelerating the decomposition of organic matter in the fecal waste, and reducing the volume of the fecal waste for easier subsequent treatment. At the same time, by increasing the temperature of the fecal waste, parasite eggs and pathogens in the fecal waste are killed.

[0033] The telescopic end of the electric telescopic rod 13 drives the connecting piece 14 to move up and down. During the upward movement, due to the resistance of the liquid in the sewage, the stirring plate 16 is in a horizontal state (the one-way gear 17 does not drive the rotating rod 15 to rotate). The stirring plate 16 pushes the sewage on its upper side upward, while sewage in other positions moves towards the position passed by the stirring plate 16, replenishing the sewage pushed away by the stirring plate 16. This makes the sewage in the reaction vessel 2 chaotic, so that the bacteria and sewage in the reaction vessel 2 are in uniform contact. This prevents the bacteria from not being in uniform contact with the sewage, which would reduce the decomposition rate of organic matter in the sewage. It also prevents the bacteria in the reaction vessel 2 from always being in the same position, which would cause some bacteria in the reaction vessel 2 to be in constant contact with the electric heating tube 9. The agitator plate 16 deactivates due to excessive heat. During its downward movement, the resistance of the liquid in the sewage causes the agitator plate 16 to rotate 90° upwards and become vertical. This prevents damage to the electric telescopic rod 13 caused by excessive resistance from the liquid in the sewage. When the agitator plate 16 moves downwards until the one-way gear 17 meshes with the toothed plate 18, the one-way gear 17 drives the agitator plate 16 to rotate downwards and reset via the rotating rod 15. This stirs the sewage in the reactor 2. Simultaneously, the liquid in the sewage can pass through the conical through-hole on the agitator plate 16 as it rotates, thereby reducing the resistance of the liquid in the sewage to the agitator plate 16 when it rotates downwards and resets. This cycle repeats, ensuring that the bacteria and sewage in the reactor 2 come into full and uniform contact.

[0034] The output shaft of the drive motor 10 drives two sets of stirring blades 12 to rotate clockwise via the rotating shaft 11, stirring the fecal matter in the reaction vessel 2 and further ensuring that the bacteria and fecal matter in the reaction vessel 2 are in uniform contact. The shape of the two sets of stirring blades 12 also allows the lower stirring blade 12 to push the fecal matter upwards and the upper stirring blade 12 to push the fecal matter downwards, further ensuring uniform contact between the bacteria and fecal matter in the reaction vessel 2. Simultaneously, the rotating shaft 11 drives the fixed plate 21 to rotate. The fixed plate 21, through the fixed rod 22, causes the rolling ball 23 to revolve around the rotating shaft 11. During this process, the rolling ball 23 compresses the connecting ring 19, causing the connecting ring 19 to move up and down reciprocally. When the connecting ring 19 moves upwards, under the restraint of the filter screen 8, the four sliding blocks 20 move away from each other and compress the adjacent springs. When the connecting ring 19 moves downwards, the springs cause the four sliding blocks 20 to move closer together and reset. This causes the filter screen 8 to vibrate, thereby preventing solid fecal matter in the fecal matter from clogging the filter screen 8.

[0035] When using thermophilic bacteria to treat fecal waste, the generated gaseous products such as methane and carbon dioxide are discharged through exhaust pipe 5. After the fecal waste is treated, the staff opens the drain pipe 6 and the discharge pipe 7. The drain pipe 6 discharges the liquid in the reactor 2, and the discharge pipe 7 discharges the solid in the reactor 2. During this process, the electric heating tube 9 and the four electric telescopic rods 13 stop working, while the drive motor 10 continues to work and repeats the above process repeatedly, thereby assisting the discharge pipe 7 in discharging the solid in the reactor 2 and preventing solid fecal waste from getting stuck on the filter screen 8. The drive motor 10 stops working after the solid in the reactor 2 is discharged.

[0036] Although the present invention has been described with reference to exemplary embodiments, it should be understood that the present invention is not limited to the disclosed exemplary embodiments. The scope of the following claims should be given the broadest interpretation in order to cover all variations and equivalent structures and functions.

Claims

1. A fermentation reactor for treating livestock and poultry manure using thermophilic bacteria, characterized in that: It includes a ladder frame (1), a reaction vessel (2) is set at the front of the ladder frame (1), a cover plate (3) is detachably installed on the upper side of the reaction vessel (2), the cover plate (3) is connected to the feed pipe (4) and the exhaust pipe (5), the side wall of the reaction vessel (2) is connected to the drain pipe (6) and the discharge pipe (7), a filter screen (8) is installed inside the reaction vessel (2), the filter screen (8) is located between the drain pipe (6) and the discharge pipe (7), and an electric heating tube (9) is installed on the side wall inside the reaction vessel (2).

2. The fermentation reactor for treating livestock and poultry manure using thermophilic bacteria as described in claim 1, characterized in that: The filter screen (8) is arranged at an angle inside the reactor (2), and the discharge pipe (7) is located above the lowest point of the filter screen (8).

3. The fermentation reactor for treating livestock and poultry manure using thermophilic bacteria as described in claim 2, characterized in that: The bottom of the reactor (2) is set in a frustum shape, with the side with the smaller diameter located on the top.

4. The fermentation reactor for treating livestock and poultry manure using thermophilic bacteria as described in claim 3, characterized in that: A drive motor (10) is mounted on the upper side of the cover plate (3) via a bracket. The reactor (2) and the cover plate (3) are connected by a rotating shaft (11). Two sets of circumferentially evenly distributed stirring blades (12) are mounted on the rotating shaft (11). The stirring blades (12) are located on the upper side of the filter screen (8).

5. The fermentation reactor for treating livestock and poultry manure using thermophilic bacteria as described in claim 4, characterized in that: Two sets of circumferentially evenly distributed stirring blades (12) are arranged at an angle on the rotating shaft (11), and the two are in opposite directions of inclination.

6. The fermentation reactor for treating livestock and poultry manure using thermophilic bacteria as described in claim 4, characterized in that: The cover plate (3) is equipped with circumferentially evenly distributed electric telescopic rods (13). The telescopic end of the electric telescopic rod (13) is equipped with a connector (14). The connector (14) is rotatably connected to a rotating rod (15). The rotating rod (15) is fixedly connected to an agitator (16). The agitator (16) is located on the upper side of the filter screen (8).

7. The fermentation reactor for treating livestock and poultry manure using thermophilic bacteria as described in claim 6, characterized in that: The stirring plate (16) has evenly distributed conical through holes, with the side with the smaller diameter located on the upper side.

8. The fermentation reactor for treating livestock and poultry manure using thermophilic bacteria as described in claim 6, characterized in that: The rotating rod (15) is equipped with a one-way gear (17), and the electric heating tube (9) is equipped with circumferentially evenly distributed toothed plates (18). The one-way gear (17) meshes with the adjacent toothed plates (18).

9. The fermentation reactor for treating livestock and poultry manure using thermophilic bacteria as described in claim 4, characterized in that: A connecting ring (19) is installed at the bottom of the reactor (2). The connecting ring (19) is rotatably connected to the rotating shaft (11). The connecting ring (19) is arranged at an inclination in the reactor (2). The inclination direction and inclination angle of the connecting ring (19) are consistent with those of the filter screen (8). The connecting ring (19) is slidably connected to a circumferentially evenly distributed sliding block (20). A spring is connected between the sliding block (20) and the connecting ring (19). The circumferentially evenly distributed sliding block (20) is connected to the filter screen (8). A fixing plate (21) is installed on the rotating shaft (11). The fixing plate (21) is located on the lower side of the connecting ring (19). A fixing rod (22) is installed on the upper side of the fixing plate (21). A ball bearing (23) is ball-connected to the upper end of the fixing rod (22). The ball bearing (23) is in contact with the lower side of the connecting ring (19).

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