Livestock Feed Air Circulation Fermenter

Abstract

The present invention relates to an air circulation fermentation machine for livestock feed. In the existing fermentation machine of this device, there are problems such as high temperatures generated at the bottom layer and inside of the feed in the fermentation liquid, as well as the problem of being unable to quickly enter the anaerobic environment. It includes a fermentation cylinder, inside which a rotating rod is rotatably installed, and a driving rod is rotatably installed on one side of the bottom of the rotating rod. A number of fixing rods are evenly distributed around the circumference of the bottom of the driving rod, and a number of screw rods are rotatably installed inside the fixing rods. A driving gear is coaxially and fixedly installed at the top of the screw rod, and a cavity is provided inside the screw rod. A number of temperature sensors are installed on the side wall at the spiral position of the screw rod. Through the screw rod, the feed is turned up and down through the spiral blades, and is cooled through the ventilation pipe. When the fixing rod rotates, it drives the driving ring to rotate, and the internal air enters the bottom of the feed through the first slot holes, making the feed contact the air more evenly and having a faster fermentation rate.

Description

Technical Field

[0001] The present invention relates to the technical field of feed processing, and particularly relates to an air circulation fermentation machine for livestock feed. Background Art

[0002] Existing livestock feed is generally obtained by microbial fermentation of natural raw materials such as plant straws. However, during the fermentation process, some fermentation liquids will be produced. Due to the influence of their own weight, the fermentation liquids will flow to the lower-layer raw materials. At this time, the upper-layer raw materials will be too dry. The inconsistent humidity of the upper and lower-layer fermented raw materials will lead to inconsistent feed fermentation and affect the quality of the feed. Secondly, high temperatures will be generated during feed fermentation, causing the feed to burn out. Existing microbial fermentation is generally carried out in an anaerobic environment, and it is not convenient to directly ventilate for cooling. Thirdly, when the lower-layer materials are stirred and mixed, due to the large depth of the fermentation tank, the oxygen in the upper layer cannot quickly flow to the lower layer, and the aerobic bacteria inside the tank cannot consume oxygen and enter the anaerobic environment.

[0003] In view of the above, we provide an air circulation fermentation machine for livestock feed to solve the above problems. Summary of the Invention

[0004] In view of the above situation, to overcome the defects of the prior art, the present invention provides an air circulation fermentation machine for livestock feed. The device makes the feed turn up and down through the spiral blades by eccentrically arranging the driving rod and cooperating with the spiral rod, making the feed fermentation more rapid. And it cools down through the ventilation pipe. At the same time, when the fixed rod rotates, it drives the driving ring to rotate, so that the internal air and oxygen enter the bottom of the feed through the first slot holes, enabling more oxygen to contact the feed and quickly enter the anaerobic environment for feed fermentation.

[0005] An air circulation fermentation machine for livestock feed, characterized in that it includes a fermentation cylinder. A rotating rod is rotatably installed inside the fermentation cylinder, and a driving rod is rotatably installed on one side of the bottom of the rotating rod. A plurality of fixed rods are circumferentially and evenly installed at the bottom of the driving rod, and a plurality of spiral rods are rotatably installed inside the fixed rods. A driving gear is coaxially and fixedly installed at the top of the spiral rod, and a cavity is provided inside the spiral rod. A driving rack is slidably installed inside the fixed rod, and the driving rack is connected to the inside of the driving rod through a first spring. A plurality of temperature sensors are installed on the side wall of the spiral position of the spiral rod. An air intake slot hole is opened inside the driving rod, an air intake hole is opened inside the rotating rod, and the air intake slot hole is communicated with the air intake hole. An air supply pipe is fixedly installed at the top of the fixed rod, and the air supply pipe is connected to the top of the spiral rod. The other side of the air supply pipe is connected to the air intake slot hole.

[0006] Preferably, the air delivery pipe includes a first ventilation pipe fixedly installed at the top of the fixed rod, and the first ventilation pipe is rotatably connected to the top wall of the screw rod. A second ventilation pipe is coaxially and fixedly installed inside the first ventilation pipe, and the second ventilation pipe is provided with a third ventilation pipe cooperating with the cavity. The first ventilation pipe is communicated with the air inlet slot hole, and the second ventilation pipe is connected to the air blower at the top of the fermentation cylinder through the air inlet slot hole and the air inlet hole.

[0007] Preferably, a driving ring is rotatably installed on the inner wall of the fermentation cylinder, and a ring gear is installed at the bottom of the driving ring. A fixed gear is fixedly installed at a position of the driving rack close to the ring gear. A reciprocating thread is provided at the top of the driving ring, and an extrusion cover plate slidably installed in the fermentation cylinder is threadedly fitted with the reciprocating thread. A spiral blade is arranged on the outer side of the screw rod, and a first slot hole is opened inside the spiral blade. A first pressure valve is fixedly installed at the top of the spiral blade, and a plurality of one-way valves are arranged on the surface of the spiral blade.

[0008] Preferably, a plurality of rubber strips are fixedly installed on the side wall of the spiral blade, and the rubber strips rotate as the screw rod rotates.

[0009] Preferably, the driving gear is a one-way gear.

[0010] Preferably, the rotating rod is arranged in an L shape.

[0011] Preferably, the third ventilation pipe is close to the bottom wall of the cavity.

[0012] Preferably, a discharge hole is opened at the bottom of the fermentation cylinder.

[0013] The beneficial effects of the above technical solutions are as follows:

[0014] (1) The device is provided with a rotating rod cooperating with a driving rod, so that the driving rod rotates eccentrically. While being eccentric, the driving rod contacts the side wall of the fermentation cylinder through the driving rack and extrudes, driving the screw rod to rotate. The rotation of the screw rod drives the spiral blade to rotate, so that the feed at the bottom is conveyed to the upper part. Under the rotation of the rotating rod and the screw rod, the fermented feed is stirred and the feed in the lower layer and the upper layer are mixed more evenly. Through the temperature sensor inside the spiral blade, the air blower and the cooler are controlled to supply air for cooling. The cold air is conveyed through the second ventilation pipe, and then conveyed to the bottom of the cavity through the third ventilation pipe. The air contacts the side wall of the screw rod and flows through air pressure, and is discharged through the first ventilation pipe, the air inlet slot hole and the air inlet hole, so as to circulate and continuously cool down;

[0015] (2) By means of the rotation rod and the driving rod, the rotational speed difference of the fixed rod is driven. The driving rack inside the fixed rod and the fixed gear contact the driving ring and drive the driving ring to rotate. The rotation of the driving ring causes the extrusion cover plate to slide up and down inside the fermentation cylinder. When sliding down, the air inside the fermentation cylinder is extruded, so that the air enters the first slot inside the spiral blade under pressure for storage. When the extrusion cover plate slides up, the gas pressure inside the fermentation cylinder decreases, while the gas pressure inside the first slot is relatively large. The air inside the first slot is discharged through the one-way valve on the surface of the spiral blade, so that the bottom and middle regions of the fermented feed are filled with air and oxygen, accelerating the fermentation of the feed.

[0016] (3) Rubber strips are arranged on the side wall of the spiral blade. Under the rotation of the spiral blade, the rubber strips rotate under the action of centrifugal force. The rotation of the rubber strips can break up the lumpy feed, preventing the slow fermentation and high temperature generation inside the lumpy feed, which may cause damage. Secondly, after the fermented feed is discharged from the inside of the fermentation cylinder, a lot of feed will adhere to the inner side wall of the fermentation cylinder, which is difficult to clean. Since the fermentation cylinder is relatively deep and large, it is not convenient for manual cleaning. Through the rotation of the rubber strips, the rubber strips clean the side wall of the fermentation cylinder, which is simple, labor-saving and time-saving. Brief Description of the Drawings

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the internal structure of the fermentation cylinder of the present invention;

[0019] Figure 3 It is a schematic diagram of the rotation rod structure of the present invention;

[0020] Figure 4 It is a schematic diagram of the driving rack structure of the present invention;

[0021] Figure 5 It is a schematic diagram of the enlarged structure of the local part A of the present invention;

[0022] Figure 6 It is a schematic diagram of the cavity structure of the present invention;

[0023] Figure 7 It is a schematic diagram of the screw rod structure of the present invention;

[0024] Figure 8 It is a schematic diagram of the enlarged structure of the local part B of the present invention;

[0025] Figure 9 It is a schematic diagram of the internal structure of the driving rack of the present invention;

[0026] Figure 10 It is a schematic diagram of the air supply pipe structure of the present invention. Detailed Embodiment

[0027] Regarding the foregoing and other technical contents, features and effects of the present invention, they will be clearly presented in the following detailed description of the embodiments with reference to the attached drawings Figure 1 to the attached Figure 10 drawings. The structural contents mentioned in the following embodiments are all referenced to the drawings of the specification.

[0028] The exemplary embodiments of the present invention will be described below with reference to the drawings.

[0029] This embodiment provides a livestock feed air circulation fermentation machine. Referring to the attached Figure 1 and the attached Figure 2 drawings, it includes a fermentation cylinder 1. Inside the fermentation cylinder 1, a rotating rod 2 is rotatably installed, and on one side of the bottom of the rotating rod 2, a driving rod 3 is rotatably installed. The rotating rod 2 is cooperatively installed with a first motor fixedly installed on the top of the fermentation cylinder 1, and the first motor is electrically connected to a microcontroller. The first motor can drive the rotating rod 2 to rotate through belt drive, gear drive, and shaft connection drive methods. The rotating rod 2 is arranged in an L shape, causing the driving rod 3 to rotate eccentrically. A number of fixing rods 4 are evenly distributed around the circumference of the bottom of the driving rod 3, and a number of screw rods 5 are rotatably installed inside the fixing rods 4. A driving gear 6 is coaxially and fixedly installed at the top of the screw rod 5, and a cavity 7 is arranged inside the screw rod 5. The cavity 7 is used to store cold air to cool the feed inside. A driving rack 8 is slidably installed inside the fixing rod 4, and the driving rack 8 is connected to the inside of the driving rod 3 through a first spring 9. The driving rack 8 is meshed with the driving gear 6, and the driving gear 6 is a one-way gear; a number of temperature sensors are installed on the side wall of the screw position of the screw rod 5, and the temperature sensors are electrically connected to the microcontroller. An air intake slot hole is opened inside the driving rod 3, an air intake hole 10 is opened inside the rotating rod 2, and the air intake slot hole is communicated with the air intake hole 10. A air supply pipe 11 is fixedly installed at the top of the fixing rod, and the air supply pipe 11 is connected to the top of the screw rod 5. The other side of the air supply pipe 11 is connected to the air intake slot hole. A discharge hole is opened at the bottom of the fermentation cylinder 1, and the discharge hole facilitates the discharge of the fermented feed. During fermentation, it is in a closed and sealed state;

[0030] A second motor is coaxially and fixedly installed on the driving rod 3, and the second motor is fixed inside the rotating rod 2. The second motor is electrically connected to the microcontroller. Under the action of the first spring 9, the driving rack 8 is in a state of extending out of the inside of the fixing rod 4, and the driving gear 6 is a one-way gear. When the driving rack 8 slides into the inside of the fixing rod 4, the driving rack 8 drives the driving gear 6 and the screw rod 5 to rotate together. When the driving rack 8 slides away from the fixing rod 4, the driving rack 8 drives the driving gear 6 to rotate in the reverse direction and will not drive the screw rod 5 to rotate in the reverse direction;

[0031] During operation, when the temperature sensor detects that the temperature is too high, the microcontroller controls the first motor and the second motor to rotate. The first motor and the second motor can also be set to start synchronously at a fixed time to periodically stir the feed inside the fermentation cylinder 1. The first motor drives the rotating rod 2 to rotate, and the rotating rod 2 drives the driving rod 3 to rotate. The driving rod 3 rotates around the rotating rod 2. The rotation speed of the second motor is less than that of the first motor. When the first motor drives the rotating rod 2 to rotate one circle, the screw rod 5 stirs the feed. At the same time, the second motor drives the driving rod 3 and the fixed rod 4 to rotate. While the driving rod 3 rotates, the driving racks 8 inside different fixed rods 4 come into contact with the inner wall of the fermentation cylinder 1. When the driving rack 8 inside a fixed rod 4 contacts the fermentation cylinder 1 and under the rotation of the driving rod 3, the fermentation cylinder 1 squeezes the driving rack 8 to slide into the fixed rod 4. The driving rack 8 drives the driving gear 6 to rotate, and the driving gear 6 drives the screw rod 5 to rotate. The screw rod 5 conveys the feed in the lower layer through the helix. Under the action of the screw mechanism and the rotation of the rotating rod 2 driving the driving rod 3, the feed inside the fermentation cylinder 1 is mixed, and the upper and lower layers of feed are mixed. At the same time, while the first motor and the second motor are rotating, the external air blower 15 is connected to the air supply pipe 11 through a pipe. Cold air is blown into the cavity 7 inside the screw rod 5 through the air supply pipe 11. The cold air inside the cavity 7 can be discharged through the air intake slots and the air intake holes 10, achieving air replacement inside the cavity 7 and quickly reducing the temperature inside the fermentation cylinder 1 to ensure the feed fermentation temperature. After fermentation is completed, the fermented feed is discharged through the discharge hole.

[0032] The air supply pipe 11 includes a first ventilation pipe 12 fixedly installed at the top of the fixed rod 4, and the first ventilation pipe 12 is rotatably connected to the top wall of the screw rod 5. A second ventilation pipe 13 is coaxially and fixedly installed inside the first ventilation pipe 12, and the second ventilation pipe 13 is provided with a third ventilation pipe 14 that cooperates with the cavity 7. The first ventilation pipe 12 is communicated with the air intake slots. The second ventilation pipe 13 is connected to the air blower 15 at the top of the fermentation cylinder 1 through the air intake slots and the air intake holes 10. A refrigeration device is provided inside the air blower 15, and the air blower 15 is electrically connected to the microcontroller. The second ventilation pipe 13 is rotatably installed at the position of the air intake slots and the air intake holes 10, so that the second ventilation pipe 13 will not be wound under the action of the second motor. The third ventilation pipe 14 is close to the bottom wall of the cavity 7, so that the blown cold air flows upward from the bottom of the cavity 7 for more effective cooling.

[0033] During operation, when the temperature sensor detects that the temperature is too high, the rotating rod 2 and the driving rod 3 rotate, causing the screw rod 5 to rotate around the rotating rod 2 and rotate on its own under the action of the driving rack 8, driving the fermented feed to be flipped and mixed. At the same time, the air blower 15 is started. The air blower 15 conveys cold air to the bottom of the cavity 7 of the screw rod 5 through the second ventilation pipe 13. Then, the cold air flows from the bottom to the top of the cavity 7. While flowing, the fermented feed in contact with the side wall of the screw rod 5 is cooled. Then, the cold air enters the inside of the first ventilation pipe 12 through the cavity 7 of the rotating rod and is discharged through the air intake slot holes and the air intake holes 10. The feed inside the fermentation cylinder 1 is cooled through the second ventilation pipe 13, the third ventilation pipe 14, and the first ventilation pipe 12. At the same time, it is ensured that the inside of the fermentation cylinder 1 is in a closed state, and the fermentation environment inside the fermentation cylinder 1 does not change. When the temperature sensor detects that the temperature returns to normal, it is only necessary to stop the operation of the air blower 15.

[0034] A driving ring 16 is rotatably installed on the inner wall of the fermentation cylinder 1, and a ring gear 17 is installed at the bottom of the driving ring 16. A fixed gear 18 is fixedly installed at a position of the driving rack 8 close to the ring gear 17. The fixed gear 18 does not rotate. A reciprocating thread is provided at the top of the driving ring 16, and a pressing cover plate 19 slidably installed in the fermentation cylinder 1 is threadedly engaged with the reciprocating thread. The pressing cover plate 19 can be connected to the inner top wall of the fermentation cylinder 1 through a telescopic rod to prevent the driving ring 16 from driving the pressing cover plate 19 to rotate together. The pressing cover plate 19 does not slide up and down. Through the rotation of the driving ring 16, under the action of the reciprocating thread, the pressing cover plate 19 slides up and down reciprocally. A spiral blade 20 is provided on the outside of the screw rod 5, and a first slot hole 21 is opened inside the spiral blade 20. A first pressure valve 22 is fixedly installed at the top of the spiral blade 20, and a number of one-way valves are provided on the surface of the spiral blade 20. A pressure valve is opened at the top of the pressing cover plate 19 to prevent a large amount of gas from being generated inside the tank during fermentation and causing the cylinder body to crack. The pressure value of the pressure valve is at the dangerous value at which the cylinder body cracks under internal pressure. When the internal pressure inside the fermentation cylinder 1 is about to reach the rupture of the fermentation cylinder 1, the internal gas is exhausted through the pressure valve. A one-way valve is opened at the top of the fermentation cylinder 1 for exhausting the gas passing through the pressure valve.

[0035] During operation, the rotating rod 2 and the driving rod 3 rotate simultaneously, and the rotational speed of the second motor is less than that of the first motor. At this time, when the rotating rod 2 rotates one full circle, the driving rod 3 rotates less than one full circle. However, the rotating rod 2 drives the fixed rod 4 at the bottom of the driving rod 3 to form the circumferential length of the inner circle of the moving drive ring 16. But the circumference of the circle that the driving rod 3 drives the fixed rod 4 to rotate one full circle is less than the circumferential length of the inner circle of the drive ring 16, indicating that when the fixed rod 4 contacts or does not contact the drive ring 16 during the rotation of the driving rod 3, the fixed rod 4 drives the ring teeth 17 to move synchronously through the fixed gear 18, rather than the fixed gear 18 meshing with the ring teeth 17 to perform circular motion under the action of the driving rod 3. Under the continuous rotation of the rotating rod 2 and the driving rod 3, the ring teeth 17 and the drive ring 16 are driven to rotate through the fixed gear 18. The drive ring 16 drives the extrusion cover plate 19 to slide up and down reciprocally through the reciprocating thread. When the extrusion cover plate 19 slides towards the bottom of the fermentation cylinder 1, the extrusion cover plate 19 squeezes the air and oxygen inside the fermentation cylinder 1, increasing the internal gas pressure. At this time, the gas pressure inside the first slot 21 inside the screw rod 5 is less than the air pressure inside the fermentation cylinder 1. At this time, under the action of the internal gas pressure of the fermentation cylinder 1, it enters the first slot 21 through the first pressure valve 22, making the internal pressure of the first slot 21 the same as the internal pressure of the fermentation cylinder 1. Under the rotation of the drive ring 16, the extrusion cover plate 19 rotates towards the top of the fermentation cylinder 1. At this time, the internal space of the fermentation cylinder 1 increases and the internal pressure is smaller. At this time, the internal pressure of the first slot 21 is greater than the external pressure, and the gas inside the first slot 21 is discharged through the one-way valve. The one-way valve is arranged on the surface of the spiral blade 20 of the screw rod 5, and several are arranged from the top to the bottom of the spiral blade 20, so that the air and oxygen inside the first slot 21 can be discharged to the bottom and inside of the feed, enabling the oxygen gas inside the fermentation cylinder 1 to come into full contact with the feed, accelerating the consumption of oxygen, quickly entering an anaerobic environment inside the tank. At the same time, through the continuous rotation of the drive ring 16, the extrusion cover plate 19 continuously slides up and down, continuously transporting the air at the top to the inside and bottom of the feed. The purpose is to enable more oxygen in the air to contact the aerobic bacteria inside the tank, thereby quickly consuming oxygen and making the inside of the tank reach an anaerobic state for the feed to ferment.

[0036] A plurality of rubber strips 23 are fixedly mounted on the side wall of the spiral blade 20, and the rubber strips 23 rotate as the spiral rod 5 rotates; when the spiral blade 20 rotates, the rubber strips 23 rotate as the spiral blade 20 rotates, and at the same time, under the action of centrifugal force, the rubber strips 23 swing and rotate to one side. When the fermented feed is not stirred and mixed for a long time, some lumps of fermented feed will be produced. The lumps of feed will not only affect the contact of the internal feed with the air, but also easily generate high temperatures, and the efficiency of cooling by the spiral rod 5 will also decrease. At this time, the lumps of feed are knocked and broken by the rotating rubber strips 23; at the same time, when the fermented feed is discharged from the fermentation cylinder 1 through the discharge hole, the fermented feed will be fixed on the surface of the side wall of the fermentation cylinder 1 due to contact with the side wall of the fermentation cylinder 1, and it is difficult to clean it by spray cleaning, which will affect the fermentation of the fermented feed next time. At this time, the spiral rod 5 drives the rubber strips 23 to rotate. Due to the action of the spiral blades 20 of the spiral rod 5, the rubber strips 23 rotate and rise, and the rubber strips 23 can contact the side wall of the fermentation cylinder 1. The side wall of the fermentation cylinder 1 is cleaned by the rubber strips 23, which is simple and convenient.

[0037] The above is only for illustrating the present invention. It should be understood that the present invention is not limited to the above embodiments, and various variations that conform to the concept of the present invention are within the protection scope of the present invention.

Claims

1. Livestock feed air circulation fermentation machine, characterized in that, It includes a fermentation cylinder (1). Inside the fermentation cylinder (1), a rotating rod (2) is rotatably installed, and a driving rod (3) is rotatably installed on one side of the bottom of the rotating rod (2). A number of fixing rods (4) are evenly distributed circumferentially at the bottom of the driving rod (3), and a number of screw rods (5) are rotatably installed inside the fixing rods (4). A driving gear (6) is coaxially and fixedly installed at the top of the screw rod (5), and a cavity (7) is arranged inside the screw rod (5). A driving rack (8) is slidably installed inside the fixing rod (4), and the driving rack (8) is connected to the inside of the driving rod (3) through a first spring (9); a number of temperature sensors are installed on the side wall at the spiral position of the screw rod (5). An air inlet slot hole is opened inside the driving rod (3), an air inlet hole (10) is opened inside the rotating rod (2), and the air inlet slot hole is communicated with the air inlet hole (10). A air supply pipe (11) is fixedly installed at the top of the fixing rod (4), and the air supply pipe (11) is connected to the top of the screw rod (5). The other side of the air supply pipe (11) is connected to the air inlet slot hole; A driving ring (16) is rotatably installed on the inner wall of the fermentation cylinder (1), and a ring gear (17) is installed at the bottom of the driving ring (16). A fixing gear (18) is fixedly installed at the position of the driving rack (8) close to the ring gear (17). A reciprocating thread is arranged at the top of the driving ring (16), and a pressing cover plate (19) slidably installed in the fermentation cylinder (1) is threadedly fitted with the reciprocating thread. A spiral blade (20) is arranged on the outside of the screw rod (5), and a first slot hole (21) is opened inside the spiral blade (20). A first pressure valve (22) is fixedly installed at the top of the spiral blade (20), and a number of one-way valves are arranged on the surface of the spiral blade (20).

2. The livestock feed air circulation fermentation machine according to claim 1, characterized in that, The air supply pipe (11) includes a first ventilation pipe (12) fixedly installed at the top of the fixing rod (4), and the first ventilation pipe (12) is rotatably connected to the top wall of the screw rod (5). A second ventilation pipe (13) is coaxially and fixedly installed inside the first ventilation pipe (12), and a third ventilation pipe (14) cooperating with the cavity (7) is arranged on the second ventilation pipe (13). The first ventilation pipe (12) is communicated with the air inlet slot hole. The second ventilation pipe (13) is connected to a blower (15) at the top of the fermentation cylinder (1) through the air inlet slot hole and the air inlet hole (10).

3. The livestock feed air circulation fermentation machine according to claim 1, characterized in that, A number of rubber strips (23) are fixedly installed on the side wall of the spiral blade (20), and the rubber strips (23) rotate as the screw rod (5) rotates.

4. The livestock feed air circulation fermentation machine according to claim 1, characterized in that, The driving gear (6) is a one-way gear.

5. The livestock feed air circulation fermentation machine according to claim 1, characterized in that, The rotating rod (2) is arranged in an L shape.

6. The livestock feed air circulation fermentation machine according to claim 2, characterized in that, The third ventilation pipe (14) is close to the bottom wall of the cavity (7).

7. The livestock feed air circulation fermentation machine according to claim 1, characterized in that, A discharge hole is opened at the bottom of the fermentation cylinder (1).

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