A fermented feed drying system

Abstract

The application discloses a kind of fermented feed drying systems, belong to fermented feed drying equipment technical field, including stirring mechanism, temperature control mechanism, gas exchange mechanism, temperature sensor, humidity sensor, controller, wherein, the stirring rod in stirring mechanism can multidirectional stirring to fermented feed, increase the contact of fermented feed and air, improve drying efficiency, and by gas exchange mechanism, accelerate the removal of water vapor in stirring barrel, further improve drying efficiency, and can pass through high-temperature drying, low-temperature drying two stages, greatly protect the product activity of fermented feed, and can shorten drying required time again, improve production efficiency.

Description

Technical Field

[0001] This invention belongs to the technical field of fermented feed drying equipment, and specifically relates to a fermented feed drying system. Background Technology

[0002] Bio-fermented feed utilizes the bio-fermentation process of microorganisms and complex enzymes to eliminate anti-nutritional factors in feed and feed ingredients, and to decompose and transform substances that are difficult for monogastric animals to digest and absorb, thereby improving feed digestibility and utilization efficiency. However, wet fermented feed contains a certain amount of moisture, which has disadvantages in production, transportation, feed processing, and animal feeding, hindering labor efficiency. Furthermore, the application range of wet fermented feed is limited. To improve the convenience and versatility of fermented feed application, the fermented feed substrate is usually dried.

[0003] Among existing drying technologies, equipment that can be used to dry feed and feed ingredients includes tower dryers, tube dryers, fluidized bed dryers, and tunnel dryers. The main principle of these devices is to increase the core temperature of the material being dried, causing moisture to evaporate and reducing the moisture content.

[0004] Fermented feed produces a large number of bioactive substances such as enzymes after fermentation. These bioactive substances are heat-sensitive, and their content determines the quality of the fermented feed. During the drying process, if the drying temperature of the fermented feed is kept above a certain value for an extended period (e.g., 60-70℃, depending on the temperature tolerance of different bioactive substances), the heat-sensitive bioactive substances such as enzymes and vitamins in the fermented feed will gradually lose their activity. This results in quality problems such as low bioactive substance content, product denaturation, and reduced quality in the dried fermented feed product.

[0005] However, adjusting the drying temperature of fermented feed materials to use low temperatures that prevent the inactivation of heat-sensitive active substances for dehydration and drying results in a long drying time and very low production efficiency, which is completely unsuitable for the development of the fermented feed industry. Therefore, it is urgent to find a new drying system to solve the current technical bottleneck. Summary of the Invention

[0006] To address the aforementioned drawbacks, this invention provides a fermented feed drying system that can greatly protect the product activity of fermented feed, shorten the drying time, and improve production efficiency.

[0007] The objective of this invention is achieved through the following technical solution: a fermented feed drying system, comprising:

[0008] A mixing mechanism for mixing fermented feed includes a mixing tank with an inlet and an outlet. A support base is fixedly located at the center of the bottom of the mixing tank's inner cavity. A top seat is fixedly located above the support base at the upper end of the mixing tank's inner cavity. Both the upper end of the support base and the lower end of the top seat have spherical support surfaces. The top seat has a through groove. A central sphere that fits against the spherical support surface is located between the support base and the top seat. Several stirring rods extending outwards are fixedly mounted on the central sphere, and stirring blades are fixedly distributed on the stirring rods. A central shaft is also fixedly mounted on the central sphere and arranged radially along the central sphere. A first motor is fixedly mounted outside the mixing tank. A connector is fixedly connected to the shaft of the first motor. The connector has a connecting hole, the centerline of which passes through the center of the central sphere. The central shaft passes through the through groove and is only rotatable within the connecting hole. The central shaft is inclined relative to the shaft of the first motor. A second motor for driving the central shaft to rotate within the connecting hole is also fixedly mounted on the connector.

[0009] The temperature control mechanism is used to regulate the working temperature of the stirring mechanism, so that the stirring mechanism can work at high or low temperatures.

[0010] A gas exchange mechanism is used to replace the gas in the mixing mechanism and improve the drying speed of fermented feed. It includes an air inlet and an air outlet set on the mixing tank, and an air extraction device is connected to the air outlet.

[0011] A temperature sensor is installed inside the mixing tank to detect the internal temperature of the mixing tank.

[0012] A humidity sensor is installed inside the mixing tank to detect the humidity inside the tank.

[0013] The controller is electrically connected to the first motor, the second motor, the temperature control mechanism, the air extraction device, the temperature sensor, and the humidity sensor. When the humidity sensor detects that the humidity of the fermented feed in the mixing tank is higher than a set value, the controller can control the temperature control mechanism to increase the temperature, maintaining a high-temperature state within the mixing mechanism. Conversely, when the humidity sensor detects that the humidity of the fermented feed in the mixing tank is lower than a set value, the controller can also control the temperature control mechanism to decrease the temperature, maintaining a low-temperature state within the mixing mechanism. The terms "high-temperature state" and "low-temperature state" are relative.

[0014] Preferably, the mixing tank is tilted, and a support frame is fixed on the mixing tank to support the mixing tank in a tilted state; the feed inlet is located at the higher part of the mixing tank, and the discharge outlet is located at the lowest part of the mixing tank, with the higher part being relative to the lowest part; both the feed inlet and the discharge outlet are provided with baffles that can be opened and closed.

[0015] Preferably, the baffle is slidably disposed on the mixing tank, and a baffle bar is fixedly provided on the mixing tank for supporting the baffle. When the baffle contacts the baffle bar, the baffle is in a closed state.

[0016] Preferably, the temperature control mechanism includes a first flow channel and a second flow channel spirally wound on the mixing tank. A hot water tank is provided between the two ends of the first flow channel. A heating device and a first water pump for circulating water between the first flow channel and the hot water tank are provided in the hot water tank. A room temperature water tank is provided between the two ends of the second flow channel. A second water pump for circulating water between the second flow channel and the room temperature water tank is provided in the room temperature water tank. The heating device, the first water pump, and the second water pump are electrically connected to the controller.

[0017] Preferably, the air inlet is located at the bottom of the mixing tank, and an air pump for supplying air into the mixing tank is provided at the air inlet location. The air pump is electrically connected to the controller.

[0018] Preferably, the controller is a PLC controller, which has a built-in display screen for displaying the temperature detected by the temperature sensor and the humidity detected by the humidity sensor.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. In this invention, the controller can control the temperature control mechanism to increase the temperature when the humidity sensor detects that the humidity of the fermented feed in the mixing tank is higher than the set value, so that the mixing mechanism is kept at a high temperature. High temperature is beneficial to accelerate the drying efficiency of the fermented feed. When the humidity of the fermented feed is high, a large amount of heat can be carried away as the water evaporates. At this time, as long as the humidity of the fermented feed is greater than a certain value, the relatively high temperature will not cause the bio-enzymes and other active substances in the fermented feed to lose their activity. The controller can also control the temperature control mechanism to decrease the temperature when the humidity sensor detects that the humidity of the fermented feed in the mixing tank is lower than the set value, so that the mixing mechanism is kept at a low temperature. This can prevent the bio-enzymes and other active substances in the fermented feed from losing their activity due to high temperature after the humidity of the fermented feed decreases.

[0021] 2. In this invention, the stirring rod can not only rotate around the central axis, but also swing up and down, so that the stirring mechanism can better stir the fermented feed in the stirring tank.

[0022] 3. By setting up a gas exchange mechanism, the air with high humidity in the mixing tank can be extracted in a timely manner, while air with low humidity is injected into the mixing tank. This continuous circulation can accelerate the drying speed of fermented feed.

[0023] 4. When the stirring rod in the stirring mechanism swings up and down, it can cause the fermented feed to be stirred longitudinally in the stirring tank, thereby creating more space between the fermented feed. This allows the lower humidity air injected into the stirring tank by the gas exchange mechanism to enter the space, greatly increasing the contact area between the fermented feed and the low humidity air in the limited space of the stirring tank, thereby further improving the drying speed of the fermented feed. Attached Figure Description

[0024] Figure 1 This is a perspective view of the present invention;

[0025] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0026] Figure 3 A schematic diagram of the connection structure between the central ball, central shaft, connecting parts, and first motor;

[0027] Figure 4 This is a schematic diagram of the electrical connections of the components in this invention;

[0028] The diagram is labeled as follows: 1. Mixing tank, 2. Tank body, 3. Tank lid, 4. Feed inlet, 5. Discharge outlet, 6. Support base, 7. Top base, 8. Central ball, 9. Through groove, 10. Stirring rod, 11. Stirring blade, 12. Central shaft, 13. First motor, 14. Connector, 15. Connecting hole, 16. Second motor, 17. Support frame, 18. Baffle, 19. Baffle bar, 20. First flow channel, 21. Second flow channel, 22. Heating device, 23. First water pump, 24. Second water pump, 25. Air inlet, 26. Air outlet, 27. Air pump, 28. Air extraction device, 29. Temperature sensor, 30. Humidity sensor, 31. Controller. Detailed Implementation

[0029] The present invention will be further described below with reference to the embodiments illustrated in the accompanying drawings:

[0030] Example 1

[0031] like Figures 1-4 As shown, a fermented feed drying system includes:

[0032] A mixing mechanism for mixing fermented feed includes a mixing tank 1, which comprises a tank body 2 and a tank cover 3. The tank body 2 and the tank cover 3 are detachably connected by bolts. The mixing tank 1 has an inlet 4 and an outlet 5. A support base 6 is fixedly located at the center of the bottom of the mixing tank 1's inner cavity. A top seat 7 is fixedly located directly above the support base 6 at the upper end of the mixing tank 1's inner cavity. Both the upper end of the support base 6 and the lower end of the top seat 7 have spherical support surfaces. The top seat 7 has a through groove 9. A central sphere 8, which fits against the spherical support surface, is located between the support base 6 and the top seat 7. Several stirring rods 10 extending outwards are fixedly mounted on the central sphere 8. Stirring blades 11 are fixedly distributed on the stirring rods 10. The central sphere 8 also has... A central shaft 12 is provided along the radial direction of the central sphere 8. A first motor 13 is fixedly provided outside the mixing tank 1. A connector 14 is fixedly connected to the rotating shaft of the first motor 13. A connecting hole 15 is provided on the connector 14. The center line of the connecting hole 15 passes through the center of the central sphere 8. The central shaft 12 passes through the through groove 9 and is set in the connecting hole 15, which can only rotate on its own axis. The central shaft 12 is inclined relative to the rotating shaft of the first motor 13. A second motor 16 for driving the central shaft 12 to rotate in the connecting hole 15 is also fixedly provided on the connector 14.

[0033] The mixing tank 1 is tilted, and a support frame 17 is fixedly provided on the mixing tank 1 to support the mixing tank 1 and maintain its tilted state. The feed inlet 4 is located at the higher part of the mixing tank 1, and the discharge outlet 5 is located at the lowest part of the mixing tank 1. Both the feed inlet 4 and the discharge outlet 5 are provided with baffles 18 that can be opened and closed. The baffles 18 are slidably disposed on the mixing tank 1, and a baffle strip 19 is fixedly provided on the mixing tank 1 to support the baffles 18. When the baffles 18 are in contact with the baffle strip 19, the baffles 18 are in a closed state.

[0034] A temperature control mechanism is used to adjust the working temperature of the stirring mechanism, enabling it to operate at high or low temperatures. The temperature control mechanism includes a first flow channel 20 and a second flow channel 21 spirally wound onto the stirring tank 1. A hot water tank is located between the two ends of the first flow channel 20, containing a heating device 22 and a first water pump 23 for circulating water between the first flow channel 20 and the hot water tank. A room temperature water tank is located between the two ends of the second flow channel 21, containing a second water pump 24 for circulating water between the second flow channel 21 and the room temperature water tank.

[0035] A gas exchange mechanism, used for gas replacement within the mixing mechanism to improve the drying speed of fermented feed, includes an air inlet 25 and an air outlet 26 located on the mixing tank 1. The air inlet 25 is situated at the bottom of the mixing tank 1, and an air pump 27 is installed at the air inlet 25 to supply air into the mixing tank 1, allowing external gas to enter the mixing tank 1 through the air inlet 25 and preventing the air inlet 25 from being blocked by the fermented feed inside the mixing tank 1. An air extraction device 28 is connected to the air outlet 26 to extract air from the mixing tank 1, thereby improving the drying speed of the fermented feed.

[0036] Temperature sensor 29 is installed inside the mixing tank 1 to detect the internal temperature of the mixing tank 1.

[0037] A humidity sensor 30 is installed inside the mixing tank 1 to detect the humidity inside the mixing tank 1.

[0038] The controller 31 is electrically connected to the first motor 13, the second motor 16, the heating device 22, the first water pump 23, the second water pump 24, the air pump 27, the air extraction device 28, the temperature sensor 29, and the humidity sensor 30. The controller 31 can control the temperature control mechanism to increase the temperature when the humidity sensor 30 detects that the humidity of the fermented feed in the mixing tank 1 is higher than a set value, thus maintaining a high temperature state within the mixing mechanism. The controller 31 can also control the temperature control mechanism to decrease the temperature when the humidity sensor 30 detects that the humidity of the fermented feed in the mixing tank 1 is lower than a set value, thus maintaining a low temperature state within the mixing mechanism. The high and low temperatures are relative terms. The controller 31 is a PLC controller 31, and it has a built-in display screen for showing the temperature detected by the temperature sensor 29 and the humidity detected by the humidity sensor 30.

[0039] The working principle of this invention is as follows:

[0040] Fresh, moist fermented feed is poured into the mixing tank 1 through the feed inlet 4. The baffle 18 is closed, and the controller 31 controls the first motor 13, the second motor 16, the heating device 22, the first water pump 23, the air pump 27, and the air extraction device 28 to start working. At this time, the first motor 13 drives the connecting piece 14 to drive the central shaft 12 to rotate around the shaft of the first motor 13. This, in turn, drives the stirring rod to swing up and down through the central ball 8. The second motor 16 on the connecting piece 14 drives the central shaft 12 to rotate within the connecting hole 15, thereby driving the stirring rod to rotate around the central shaft 12. This allows the mixing mechanism to not only stir the fermented feed in the mixing tank 1 laterally but also longitudinally, thereby creating more space between the fermented feed and better stirring the feed. This greatly increases the contact area between the fermented feed and the air, thus improving the drying speed of the fermented feed.

[0041] The heating device 22 and the first water pump 23 operate, enabling hot water to circulate through the first flow channel 20 and be used to heat the mixing tank 1, maintaining a high temperature inside the mixing tank 1. In this embodiment, the heating device 22 maintains the temperature in the hot water pool at around 80°C, thereby enabling the temperature inside the mixing tank 1 to reach between 70-80°C. Maintaining a high temperature for drying the fermented feed significantly improves the drying efficiency. When the fermented feed first begins drying, its humidity is high, and the evaporation of water absorbs a large amount of heat, thus preventing the actual temperature inside the mixing tank 1 from becoming too high and causing the fermented feed to lose its activity. The temperature sensor 29 monitors the temperature inside the mixing tank 1 in real time, and the humidity sensor 30 monitors the humidity inside the mixing tank 1 in real time. Both the temperature sensor 29 and the humidity sensor 30 can feed back the detected information to the controller 31.

[0042] The operation of air pump 27 allows relatively dry outside air to enter the mixing tank 1 through air inlet 25, preventing air inlet 25 from being blocked by the fermenting feed inside the mixing tank 1. An air extraction device 28 is connected to air outlet 26 to extract the high-humidity air from the mixing tank 1, thereby increasing the drying speed of the fermenting feed. The gas exchange mechanism, in conjunction with the mixing mechanism, greatly enhances the contact between the fermenting feed and the relatively dry air, thus significantly improving the drying speed of the fermenting feed. Furthermore, the air injected into the mixing tank 1 by air pump 27 and the air extracted from the mixing tank 1 by air extraction device 28 both remove some heat from the mixing tank 1, preventing excessively high temperatures inside the mixing tank 1 from affecting the activity of the fermenting feed.

[0043] When the humidity sensor 30 detects that the humidity inside the mixing tank 1 is lower than the set value and sends feedback to the controller 31, the controller 31 controls the heating device 22 and the first water pump 23 to stop working, and at the same time controls the second water pump 24 to work, so that the water in the room temperature water tank passes through the second flow channel 21 in time, quickly reducing the temperature inside the mixing tank 1. At this time, the temperature of the fermented feed will also gradually decrease, keeping it low-temperature and dry. When the humidity sensor 30 detects that the humidity inside the mixing tank 1 reaches the requirements of the finished fermented feed, the controller 31 controls the first motor 13, the second motor 16, and the second water pump 24 to work, and the air pump 27 and the air extraction device 28 to stop working. At this time, the fermented feed in the mixing tank 1 can be taken out through the discharge port 5. In order to facilitate the removal of the fermented feed, the mixing tank 1 is set at an angle. At this time, the controller 31 controls the first motor 13 and the second motor 16 to work, and continues to control the operation of the mixing mechanism, which will cause the fermented feed in the mixing tank 1 to fall out from the discharge port 5 on the mixing tank 1.

[0044] It should be understood that in the claims and description of this invention, all instances of "comprising..." should be understood as having an open meaning, that is, their meaning is equivalent to "containing at least...", and should not be understood as having a closed meaning, that is, their meaning should not be understood as "containing only...".

[0045] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A method for drying feed using a fermented feed drying system, characterized in that, include: The fermented feed drying system includes: A mixing mechanism for mixing fermented feed includes a mixing tank with an inlet and an outlet. A support base is fixedly located at the center of the bottom of the mixing tank's inner cavity. A top seat is fixedly located above the support base at the upper end of the mixing tank's inner cavity. Both the upper end of the support base and the lower end of the top seat have spherical support surfaces. The top seat has a through groove. A central sphere that fits against the spherical support surface is located between the support base and the top seat. Several stirring rods extending outwards are fixedly mounted on the central sphere, and stirring blades are fixedly distributed on the stirring rods. A central shaft arranged radially along the central sphere is also fixedly mounted on the central sphere. A first motor is fixedly mounted outside the mixing tank, and a connecting piece is fixedly connected to the shaft of the first motor. The device has a connecting hole with its center line passing through the center of the central sphere. The central shaft passes through the through slot and is rotatably mounted in the connecting hole. The central shaft is inclined relative to the shaft of the first motor. A second motor for driving the central shaft to rotate within the connecting hole is also fixed on the connecting member. The mixing tank is inclined and a support frame for supporting the mixing tank to maintain its inclined state is fixed on the mixing tank. The feed inlet is located at the higher part of the mixing tank, and the discharge outlet is located at the lowest part of the mixing tank. Both the feed inlet and the discharge outlet are equipped with openable and closable baffles. The baffles are slidably mounted on the mixing tank, and a baffle bar is fixed on the mixing tank for supporting the baffles. When the baffles contact the baffle bar, the baffles are in a closed state. The temperature control mechanism is used to adjust the working temperature of the stirring mechanism so that the stirring mechanism can work at high or low temperatures. The temperature control mechanism includes a first flow channel and a second flow channel spirally wound on the stirring tank. A hot water tank is provided between the two ends of the first flow channel. A heating device and a first water pump are provided in the hot water tank to circulate the water between the first flow channel and the hot water tank. A room temperature water tank is provided between the two ends of the second flow channel. A second water pump is provided in the room temperature water tank to circulate the water between the second flow channel and the room temperature water tank. A gas exchange mechanism is used for gas exchange within the mixing mechanism to improve the drying speed of fermented feed. It includes an air inlet and an air outlet on the mixing tank. The air inlet is located at the bottom of the mixing tank, and an air pump is provided at the air inlet for supplying air into the mixing tank. An air extraction device is connected to the air outlet. A temperature sensor is installed inside the mixing tank to detect the internal temperature of the mixing tank. A humidity sensor is installed inside the mixing tank to detect the humidity inside the tank. The controller is electrically connected to the first motor, the second motor, the heating device, the first water pump, the second water pump, the air pump, the air extraction device, the temperature sensor, and the humidity sensor, respectively. The controller can control the heating device, the first water pump, and the second water pump in the temperature control mechanism by the temperature detected by the temperature sensor. The method for drying feed includes: Fresh, moist fermented feed is poured into the mixing tank through the feed inlet. The baffle is closed, and the controller starts the first motor, the second motor, the heating device, the first water pump, the air pump, and the air extraction device. The first motor drives the connecting piece to make the central shaft rotate around the first motor's shaft. The second motor on the connecting piece drives the central shaft to rotate within the connecting hole, which in turn drives the mixing rod to rotate around the central shaft. The heating device and the first water pump work to circulate hot water through the first flow channel to raise the temperature inside the mixing tank and improve the drying efficiency of the fermented feed. The temperature sensor monitors the temperature inside the mixing tank in real time, and the humidity sensor monitors the humidity inside the mixing tank in real time. The temperature sensor and humidity sensor feed back the detected information to the controller. The air pump works to allow dry outside air to enter the mixing tank through the air inlet, while the air extraction device at the air outlet works to extract the humid air inside the mixing tank, thereby increasing the drying speed of the fermented feed and removing some of the heat from the mixing tank. When the humidity sensor detects that the humidity inside the mixing tank is lower than the set value and sends feedback to the controller, the controller stops the heating device and the first water pump, and simultaneously controls the second water pump to operate. This allows water from the room temperature water tank to flow through the second channel to lower the temperature inside the mixing tank. At this time, the temperature of the fermented feed will also gradually decrease, maintaining a low temperature and dryness. When the humidity sensor detects that the humidity inside the mixing tank reaches the required level for the finished fermented feed, the controller controls the first motor, the second motor, and the second water pump to operate, while the air pump and the suction device stop operating. At this point, the fermented feed can be removed from the mixing tank through the discharge port. The mixing tank is tilted, and by controlling the first motor and the second motor to continue operating the mixing mechanism, the fermented feed inside the mixing tank can be made to fall out from the discharge port on the mixing tank.

2. The method for drying feed using a fermented feed drying system according to claim 1, characterized in that... The controller is a PLC controller.

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