Biological treatment equipment for concentrated pig feed

Abstract

This invention provides a biological treatment device for concentrated pig feed, including a fermenter, a buffer tank, a cap, and a purification component. The fermenter contains concentrated pig feed. The buffer tank is located on one side of the fermenter and is connected to the top of the fermenter via a first connecting pipe extending into the fermenter. The cap is located at the inlet end of the first connecting pipe to prevent liquid materials from entering. The purification component is located on one side of the buffer tank and is connected to the top of the buffer tank via a second connecting pipe for purifying gas. A vacuum pump is installed on the second connecting pipe, which draws gas from the fermenter through the buffer tank to the purification component. This biological treatment device for concentrated pig feed, through the cooperation of the cap and the buffer tank, effectively separates liquid materials from the gas, preventing corrosion and damage to the vacuum pump.

Description

Technical Field

[0001] This utility model belongs to the field of pig feed fermentation technology, and more specifically, it relates to a biological treatment device for concentrated pig feed. Background Technology

[0002] In modern pig farming, fermented concentrated feed is increasingly widely used due to its significant advantages, such as improved palatability, increased nutrient digestibility and absorption, degradation of anti-nutritional factors, and rich content of probiotics. This process typically involves anaerobic or aerobic fermentation of the concentrated feed in a sealed fermentation tank. During this process, the metabolic activities of microorganisms produce large amounts of gases, including carbon dioxide, methane, and some sulfur- and nitrogen-containing gases with pungent odors (such as ammonia and hydrogen sulfide).

[0003] To maintain a suitable pressure environment inside the fermenter, collect and treat these odorous gases to meet environmental protection requirements, and prevent odors from escaping and affecting the factory area and surrounding environment, vacuum pumps (or induced draft fans) are commonly used in production to construct a negative pressure collection system, continuously extracting the gas from the top of the fermenter and transporting it to a gas treatment device (such as a spray tower, biological filter, etc.).

[0004] However, during the gas collection process, a long-standing technical problem that seriously affects production stability and equipment lifespan has become increasingly prominent: while the vacuum pump is sucking up odorous gases, it often carries out liquid materials from the fermentation tank, leading to frequent damage to the vacuum pump. Utility Model Content

[0005] This utility model provides a biological treatment device for concentrated pig feed. Through the combination of a cap and a buffer tank, liquid materials can be effectively separated from gas, avoiding corrosion and damage to the vacuum pump.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A biological treatment device for concentrated pig feed is provided, comprising a fermenter, a buffer tank, a cap, and a purification component. The fermenter is used to contain concentrated pig feed; the buffer tank is disposed on one side of the fermenter, and the top of the buffer tank is connected to the fermenter via a first connecting pipe extending into the fermenter; the cap is disposed at the inlet end of the first connecting pipe to prevent liquid materials from entering the first connecting pipe; the purification component is disposed on one side of the buffer tank and connected to the top of the buffer tank via a second connecting pipe for purifying gas, and a vacuum pump is provided on the second connecting pipe, which can draw gas from the fermenter through the buffer tank to the purification component.

[0007] In one possible implementation, a first baffle plate extending downward is provided on the inner top wall of the buffer tank, and there is a gap between the lower edge of the first baffle plate and the buffer tank. The first baffle plate is located between the first connecting pipe and the second connecting pipe.

[0008] In some embodiments, a second baffle plate is provided on the inner bottom wall of the buffer tank, extending upward and located on the side of the first baffle plate away from the first connecting pipe.

[0009] In some embodiments, the upper edge of the second baffle plate has a bent portion that bends toward the side closer to the first baffle plate, the bent portion is connected to the first baffle plate, and a vent hole is provided through the bent portion.

[0010] In some embodiments, a horizontally arranged filter screen is provided above the bend, and the side edges of the filter screen are connected to the first baffle plate and the inner wall of the buffer tank, respectively.

[0011] In some embodiments, the purification component includes a purification box, a receiving box, and an activated carbon layer. The purification box is disposed on one side of the buffer tank, and a second connecting pipe is connected to the lower part of the purification box. An exhaust pipe is provided on the top of the purification box. The receiving box is disposed inside the purification box with its opening facing upward. A through hole is provided on the bottom wall of the receiving box, and the receiving box is located above the second connecting pipe. The activated carbon layer is disposed inside the receiving box for purifying the gas.

[0012] In some embodiments, the receiving box is disposed through one side wall of the purification box and is slidably connected to the purification box.

[0013] In some embodiments, the outer end of the container is provided with a protrusion that protrudes outward, and a sealing gasket is provided between the protrusion and the purification box. The container is locked inside the purification box by a locking member.

[0014] In some embodiments, the locking element includes a pivot and a rotating plate. The pivot is connected to the outer wall of the purification box and extends horizontally outward. The pivot is located above the boss. The rotating plate is rotatably connected to the pivot. The side of the rotating plate near the receiving box is provided with an arc-shaped platform for abutting against the outer wall of the receiving box. The rotating plate can be swung vertically upward to avoid the receiving box or swung vertically downward to press the arc-shaped platform against the outer wall of the receiving box.

[0015] In one possible implementation, the top of the fermenter is provided with a stirring component extending downward into the fermenter. The stirring component includes a stirring shaft and a stirring rod. The stirring shaft is rotatably connected to the top of the fermenter and extends downward into the fermenter. A rotary drive component is connected to the upper end of the stirring shaft. The stirring rod is connected to the outer peripheral wall of the stirring shaft and extends outward.

[0016] The concentrated feed biological treatment device for pigs provided in this embodiment, compared with the prior art, can effectively block liquid material foam or droplets that may be carried by the airflow due to vacuum pump suction through the umbrella cap, preventing these liquid materials from entering the first connecting pipe. In conjunction with the buffer tank, the remaining residual liquid material foam or droplets are further separated from the gas, thereby avoiding corrosion and damage to the vacuum pump. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a frontal cross-sectional view of the biological treatment device for concentrated pig feed provided in an embodiment of the present utility model. Figure 2 This is an embodiment of the present utility model. Figure 1 A magnified schematic diagram of the local structure at point I; Figure 3 This is an embodiment of the present utility model. Figure 1 A frontal sectional view of the second baffle plate and the bent section.

[0019] The following are the labeling elements in the figure: 10. Fermentation tank; 11. First connecting pipe; 12. Umbrella cap; 20. Buffer tank; 21. Second connecting pipe; 22. Vacuum pump; 23. First baffle plate; 24. Second baffle plate; 25. Bend; 26. Vent hole; 27. Filter screen; 30. Purification component; 31. Purification box; 32. Air outlet pipe; 33. Container box; 34. Through hole; 35. Activated carbon layer; 36. Boss; 40. Sealing gasket; 50. Locking component; 51. Rotating shaft; 52. Rotating plate; 53. Arc-shaped platform; 60. Stirring component; 61. Stirring shaft; 62. Rotation drive component; 63. Stirring rod. Detailed Implementation

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

[0021] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or indirectly on the other element. It should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a number" means two or more, unless otherwise explicitly specified.

[0022] Please see Figures 1 to 3 The present invention provides a biological treatment device for concentrated pig feed. The biological treatment device for concentrated pig feed includes a fermenter 10, a buffer tank 20, a cap 12, and a purification component 30. The fermenter 10 is used to contain concentrated pig feed. The buffer tank 20 is located on one side of the fermenter 10 and is connected to the top of the fermenter 10 via a first connecting pipe 11, which extends into the fermenter 10. The cap 12 is located at the inlet end of the first connecting pipe 11 and is used to prevent liquid materials from entering the first connecting pipe 11. The purification component 30 is located on one side of the buffer tank 20 and is connected to the top of the buffer tank 20 via a second connecting pipe 21. It is used to purify gas. A vacuum pump 22 is installed on the second connecting pipe 21, which can draw gas from the fermenter 10 through the buffer tank 20 into the purification component 30.

[0023] Furthermore, the fermenter 10 is equipped with a feed pipe at the top, and a cap is detachably connected to the feed pipe. The fermenter 10 is also equipped with a discharge pipe at the bottom.

[0024] Furthermore, a pressure gauge is installed on the top of the fermenter 10 to measure the internal pressure.

[0025] This application provides a biological treatment device for concentrated pig feed. In its actual use, the vacuum pump 22 provides a controllable micro-negative pressure to the fermentation tank 10. On the one hand, it can promptly remove carbon dioxide, methane, and some sulfur- and nitrogen-containing gases with pungent odors generated during fermentation, preventing these gases from accumulating in the tank and inhibiting beneficial fermentation bacteria (such as lactic acid bacteria), thereby promoting the activity of anaerobic or facultative anaerobic bacteria, accelerating the fermentation process, and improving the fermentation success rate. On the other hand, the negative pressure environment can lower the boiling point of water, saving energy when heating is required (such as pasteurization or heat preservation fermentation).

[0026] The upward arched shape of the umbrella cap 12 is located directly below the inlet end of the first connecting pipe 11. It effectively blocks liquid material foam or droplets that may be carried by the airflow due to the suction of the vacuum pump 22, preventing these liquid materials from entering the first connecting pipe 11. This avoids pipe blockage, corrosion of the vacuum pump 22, and contamination of the subsequent buffer tank 20 and purification component 30, ensuring the long-term unobstructed flow of the gas delivery channel and the stable operation of the system.

[0027] Buffer tank 20, serving as an intermediate container between fermenter 10 and purification unit 30, provides additional gas-liquid separation space. The gas from fermenter 10 (still containing a small amount of droplets) experiences a reduced flow rate in buffer tank 20, and some droplets settle due to gravity, achieving preliminary separation and reducing the processing load on subsequent purification unit 30. Purification unit 30 is ultimately responsible for treating harmful or odorous gases, ensuring that the gas finally released into the atmosphere is treated and meets environmental standards. This significantly reduces odor pollution and volatile organic compound emissions from the farm, improving the farm area and surrounding environment.

[0028] Compared with the prior art, the concentrated feed biological treatment device for pigs provided in this embodiment can effectively block liquid material foam or droplets that may be carried by the airflow due to the suction of the vacuum pump 22 by the umbrella cap 12, preventing these liquid materials from entering the first connecting pipe 11. In conjunction with the buffer tank 20, the remaining residual liquid material foam or droplets are further separated from the gas, thereby avoiding corrosion and damage to the vacuum pump 22.

[0029] In one possible implementation, the aforementioned buffer tank 20 adopts the following... Figure 1 The structure shown is described in the following document. Figure 1 The buffer tank 20 has a first baffle plate 23 extending downward on its inner top wall. There is a gap between the lower edge of the first baffle plate 23 and the buffer tank 20. The first baffle plate 23 is located between the first connecting pipe 11 and the second connecting pipe 21.

[0030] Specifically, after the gas containing droplets enters the buffer tank 20 from the first connecting pipe 11, it cannot flow directly horizontally towards the second connecting pipe 21. Instead, it is blocked by the first baffle plate 23 and forced to flow entirely towards the bottom wall of the buffer tank 20, bypassing the gap at the lower edge of the baffle plate before rising and flowing towards the second connecting pipe 21. This path greatly increases the residence time and flow path of the gas within the buffer tank 20.

[0031] When the airflow suddenly changes direction, because the mass and inertia of liquid droplets are much greater than those of gas molecules, they cannot follow the airflow sharply like gases. Instead, they continue to move downwards and collide with the bottom wall of the buffer tank 20, while some gas also collides with the first baffle plate 23. After the collision, the droplets on the first baffle plate 23 coalesce and flow downwards along the plate wall, eventually falling back to the bottom of the buffer tank 20, thus achieving highly efficient mechanical gas-liquid separation. This further protects the vacuum pump 22 and extends its service life.

[0032] In some embodiments, see Figure 1 and Figure 3 The inner bottom wall of the buffer tank 20 is provided with a second baffle plate 24 that extends upward and is located on the side of the first baffle plate 23 away from the first connecting pipe 11.

[0033] Specifically, the second baffle plate 24 causes the airflow to further impact the second baffle plate 24. After the impact, the droplets will coalesce and flow down the plate wall, eventually falling back to the bottom of the buffer tank 20, thereby further realizing gas-liquid separation.

[0034] Furthermore, the bottom of the buffer tank 20 is provided with two outlet pipes located on both sides of the second baffle plate 24.

[0035] In some embodiments, see Figure 1 and Figure 3 The upper edge of the second baffle plate 24 has a bent portion 25 that bends toward the side closer to the first baffle plate 23. The bent portion 25 is connected to the first baffle plate 23, and a vent hole 26 is provided through the bent portion 25.

[0036] Specifically, the design of the bend 25 connects the upper parts of the first baffle plate 23 and the second baffle plate 24, forming a structurally stable channel. This structure forces all gas coming from below the first baffle plate 23 to enter the purification component 30 through the specially opened vent 26 on the bend 25.

[0037] The vent 26 functions similarly to a simple demister. When gas passes through these small holes in a concentrated manner, the airflow velocity locally increases. Any remaining tiny droplets that may be carried in the gas collide with, are trapped, and condense against the hole walls as they pass through, thus being effectively captured in the final stage, ultimately enhancing the dryness of the gas. This results in a very high level of gas-liquid separation.

[0038] In some embodiments, see Figure 1 A horizontally arranged filter screen 27 is provided above the bent part 25, and the side edges of the filter screen 27 are connected to the first liquid baffle 23 and the inner wall of the buffer tank 20 respectively.

[0039] Specifically, a physical filtration layer is added to the mechanical baffle inertial separation. Filter 27 can intercept extremely fine droplets and aerosols that remain after the previous separation processes.

[0040] This greatly improves the system's reliability and the thoroughness of the separation effect. Even if a brief anomaly occurs in the preceding steps (such as a sudden increase in liquid droplets), filter 27 can act as a final safety barrier to ensure that no liquid enters the vacuum pump 22. It significantly enhances the stability and fault tolerance of the entire device.

[0041] In some embodiments, see Figure 1 and Figure 2 The purification component 30 includes a purification box 31, a receiving box 33, and an activated carbon layer 35. The purification box 31 is located on one side of the buffer tank 20, and the second connecting pipe 21 is connected to the lower part of the purification box 31. The top of the purification box 31 is provided with an exhaust pipe 32. The receiving box 33 is located inside the purification box 31 and its opening faces upward. A through hole 34 is provided through the bottom wall of the receiving box 33. The receiving box 33 is located above the second connecting pipe 21. The activated carbon layer 35 is located inside the receiving box 33 and is used to purify the gas.

[0042] Specifically, it is clarified that the core of the purification component 30 is activated carbon adsorption, which is a very mature and efficient waste gas treatment method that can effectively adsorb odor molecules (such as ammonia and hydrogen sulfide), a small amount of volatile organic compounds, and other harmful substances in fermentation gases.

[0043] The gas enters from the bottom of the purification chamber 31, rises naturally, must pass through the through hole 34 at the bottom of the receiving box 33, then diffuses evenly through the entire activated carbon layer 35, and finally exits from the top. This flow direction ensures that the gas has a sufficient and uniform contact area and contact time with the activated carbon, making the adsorption reaction more thorough, maximizing the purification efficiency, and avoiding airflow short-circuiting.

[0044] In some embodiments, see Figure 1 and Figure 2 The container 33 is installed through one side wall of the purification box 31 and is slidably connected to the purification box 31.

[0045] Specifically, the sliding connection design makes the container 33 resemble a drawer. When the activated carbon is saturated and needs to be replaced or regenerated, the operator can simply pull out the container 33 to replace it without disassembling any pipes or opening the entire top cover of the purification chamber 31.

[0046] This design greatly simplifies the maintenance process, saves manpower and time, makes routine maintenance quick and convenient, improves equipment availability and user experience, and is very suitable for farm environments that require regular maintenance.

[0047] In some embodiments, see Figure 1 and Figure 2 The outer end of the receiving box 33 is provided with a protrusion 36 that protrudes outward, and a sealing gasket 40 is provided between the protrusion 36 and the purification box 31. The receiving box 33 is locked inside the purification box 31 by the locking member 50.

[0048] Specifically, the combination of the boss 36 and the sealing gasket 40 forms a reliable sealing structure at the connection between the receiving box 33 and the purification chamber 31. This prevents unpurified, foul-smelling, and harmful gases from leaking out from the drawer gaps and contaminating the working environment, while ensuring that all gases are forced to pass through the activated carbon layer 35, maintaining purification efficiency.

[0049] The locking element 50 ensures that the housing 33 will not accidentally slide out during operation due to vibration or changes in internal air pressure, thus guaranteeing the safety and stability of the equipment operation.

[0050] Furthermore, a sealing gasket is provided between the inner wall of the container 33 and the purification box 31.

[0051] In some embodiments, see Figure 1 and Figure 2 The locking component 50 includes a rotating shaft 51 and a rotating plate 52. The rotating shaft 51 is connected to the outer wall of the purification box 31 and extends horizontally outward. The rotating shaft 51 is located above the boss 36. The rotating plate 52 is rotatably connected to the rotating shaft 51. The side of the rotating plate 52 near the receiving box 33 is provided with an arc-shaped platform 53 for abutting against the outer wall of the receiving box 33. The rotating plate 52 can be vertically swung upward to avoid the receiving box 33 or vertically swung downward to make the arc-shaped platform 53 press against the outer wall of the receiving box 33.

[0052] Specifically, the operator can unlock and pull out the receiving box 33 by simply flipping the rotating plate 52 upward; after replacement, push the receiving box 33 in, and then flip the rotating plate 52 downward. The arc-shaped platform 53 will press against the outer wall of the receiving box 33, using the lever principle to generate a clamping force to achieve locking.

[0053] The entire process can be completed by hand, without any tools (such as wrenches or screwdrivers), making it extremely convenient and quick, further optimizing the user experience and maintenance efficiency. The curved platform 53 design increases the contact area, resulting in more uniform clamping force and a more reliable seal.

[0054] In one possible implementation, the fermenter 10 described above adopts the following... Figure 1The structure shown is described in the following document. Figure 1 The top of the fermentation tank 10 is provided with a stirring component 60 extending downward into the fermentation tank 10. The stirring component 60 includes a stirring shaft 61 and a stirring rod 63. The stirring shaft 61 is rotatably connected to the top of the fermentation tank 10 and extends downward into the fermentation tank 10. The upper end of the stirring shaft 61 is connected to a rotary drive component 62. The stirring rod 63 is connected to the outer peripheral wall of the stirring shaft 61 and extends outward.

[0055] Specifically, the agitator 60 can break up material clumps, ensuring that the fermentation agent, moisture, materials, and temperature are evenly distributed, avoiding excessively high local acidity or uneven temperature, and ensuring that the materials in the entire tank are under consistent fermentation conditions.

[0056] Uniform stirring increases the contact area between microorganisms and materials, accelerates the biochemical reaction rate, and shortens the fermentation cycle. At the same time, stirring helps dissipate the heat generated during fermentation, preventing localized overheating from killing the fermenting bacteria.

[0057] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A biological treatment device for concentrated pig feed, characterized in that, include: Fermentation tanks are used to contain concentrated pig feed; A buffer tank is disposed on one side of the fermentation tank, and the buffer tank is connected to the top of the fermentation tank through a first connecting pipe, which extends into the fermentation tank. A cap is provided at the inlet end of the first connecting pipe to prevent liquid materials from entering the first connecting pipe; as well as A purification component is disposed on one side of the buffer tank and connected to the top of the buffer tank through a second connecting pipe. It is used to purify gas. A vacuum pump is provided on the second connecting pipe. The vacuum pump can draw gas from the fermenter through the buffer tank to the purification component.

2. The biological treatment device for concentrated pig feed as described in claim 1, characterized in that, The inner top wall of the buffer tank is provided with a first baffle plate extending downward, and there is a gap between the lower edge of the first baffle plate and the buffer tank. The first baffle plate is located between the first connecting pipe and the second connecting pipe.

3. The biological treatment device for concentrated pig feed as described in claim 2, characterized in that, The inner bottom wall of the buffer tank is provided with a second baffle plate that extends upward and is located on the side of the first baffle plate away from the first connecting pipe.

4. The biological treatment device for concentrated pig feed as described in claim 3, characterized in that, The upper edge of the second baffle plate has a bent portion that bends toward the side closer to the first baffle plate. The bent portion is connected to the first baffle plate, and a vent hole is provided through the bent portion.

5. The biological treatment device for concentrated pig feed as described in claim 4, characterized in that, A horizontally arranged filter screen is provided above the bent portion, and the side edges of the filter screen are connected to the first baffle plate and the inner wall of the buffer tank, respectively.

6. The biological treatment device for concentrated pig feed as described in claim 1, characterized in that, The purification component includes: A purification box is located on one side of the buffer tank, the second connecting pipe is connected to the lower part of the purification box, and an air outlet pipe is provided on the top of the purification box. A receiving box, disposed inside the purification chamber and with its opening facing upwards, has a through hole in its bottom wall, and is located above the second connecting pipe; and An activated carbon layer is disposed inside the container to purify the gas.

7. The biological treatment device for concentrated pig feed as described in claim 6, characterized in that, The container is disposed through one side wall of the purification box and is slidably connected to the purification box.

8. The biological treatment device for concentrated pig feed as described in claim 7, characterized in that, The outer end of the container is provided with a protrusion that protrudes outward, and a sealing gasket is provided between the protrusion and the purification box. The container is locked inside the purification box by a locking device.

9. The biological treatment device for concentrated pig feed as described in claim 8, characterized in that, The locking element includes: A rotating shaft, connected to the outer wall of the purification chamber and extending horizontally outward, is located above the boss; and A rotating plate is rotatably connected to the rotating shaft. The side of the rotating plate near the receiving box is provided with an arc-shaped platform for abutting against the outer wall of the receiving box. The rotating plate can be swung vertically upward to avoid the receiving box or swung vertically downward to make the arc-shaped platform press against the outer wall of the receiving box.

10. The biological treatment device for concentrated pig feed as described in claim 1, characterized in that, The top of the fermenter is provided with a stirring element extending downward into the fermenter, the stirring element comprising: A stirring shaft is rotatably connected to the top of the fermentation tank and extends downward into the fermentation tank; a rotary drive component is connected to the upper end of the stirring shaft; and A stirring rod is connected to the outer peripheral wall of the stirring shaft and extends outward.

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