A feed fermentation tank

Abstract

The utility model provides a kind of feed fermentation tank, it is related to feed processing equipment technical field, including ontology, the top of ontology is welded with upper jar body, the top of upper jar body is welded with sealing cover, sealing cover includes lower lid body and upper lid body, cavity is formed between lower lid body and upper lid body, lower lid body includes shell, inner body and lower seal cover, the lower seal cover is threadedly connected in inner body, annular convex rib is formed with the inside of the section of shell close to upper jar body and extends inward, the inner body extends convex ring along axial direction, liquid storage bin is formed between convex ring, shell and upper lid body, liquid storage bin is used for storing sealing liquid, and liquid storage bin is communicated with cavity, cavity is used for filling sealing liquid and protective gas, the pressure transformation of sealing layer caused by waste gas is effectively buffered by internal filling liquid and protective gas, prevent miscellaneous bacteria and oxygen from entering, improve fermentation quality.

Description

Technical Field

[0001] This application relates to the field of feed processing equipment technology, and in particular to a feed fermentation tank. Background Technology

[0002] Feed fermentation is a process that transforms feed ingredients into high-quality feed through microbial metabolism. It can improve the nutritional value, palatability, and digestibility of feed, while reducing pathogens. The fermentation process usually uses specialized fermentation facilities, typically a closed or semi-closed container equipped with ventilation, stirring, and temperature control devices to process the feed to be fermented.

[0003] Traditional feed fermentation tanks have poor sealing properties, making them susceptible to external contamination and affecting fermentation efficiency. Their single-layer sealing structure cannot effectively buffer pressure fluctuations caused by temperature changes and microbial metabolism during fermentation, leading to seal failure. Adopting a double-layer sealing structure, such as a water seal layer and a protective gas layer, significantly improves sealing performance, effectively isolates external contaminants, and buffers pressure changes, solving the problems of poor sealing and insufficient pressure buffering in traditional fermentation tanks, thus improving fermentation quality and stability.

[0004] Therefore, we provide a feed fermentation tank to solve the above problems. Utility Model Content

[0005] The purpose of this application is to provide a feed fermentation tank that can effectively buffer the pressure changes in the sealing layer caused by exhaust gas through a double-layer sealing structure, using the liquid and protective gas filled inside, to prevent the entry of miscellaneous bacteria and oxygen, thereby improving the fermentation quality.

[0006] The first aspect of this utility model relates to a feed fermentation tank, comprising a body, a first pressure gauge disposed on the surface of the body, a base circumferentially distributed at the bottom end of the body, a fixed shaft disposed inside the body, a stirring shaft rotatably connected to the fixed shaft, one end of the stirring shaft meshing with the output shaft of a motor via a gear, an upper tank body welded to the top of the body, a sealing cap welded to the top of the upper tank body, the sealing cap comprising a lower cap body and an upper cap body, a cavity formed between the lower cap body and the upper cap body, the lower cap body comprising an outer shell, an inner body and a lower sealing cap, the lower sealing cap being internally threaded to the inner body, an annular rib extending inward from the inner side of the section of the outer shell near the upper tank body, a convex ring extending axially from the inner body, a liquid storage chamber formed between the convex ring, the outer shell and the upper cap body, the liquid storage chamber being used to store a sealing liquid and communicating with the cavity, the cavity being used to fill the sealing liquid and protective gas.

[0007] In some embodiments, the height of the convex ring is greater than the height of the lower cover.

[0008] In some embodiments, the lower cover further includes a sealing block and an inner cover. The sealing block is formed by the inner body extending radially and is disposed inside the convex ring. The lower cover is threadedly connected to the inner body through an inner cover disposed at the bottom end. The inner cover is made of elastic natural rubber.

[0009] In some embodiments, the lower cover further includes a handle and a buckle, the handle being disposed at the top of the lower cover, and the buckles being distributed circumferentially on the outer side of the outer shell.

[0010] In some embodiments, a level gauge is embedded inside the housing for measuring the liquid level in the cavity and / or the storage tank.

[0011] In some embodiments, the upper cover includes a top cover and a sealing block. The top cover is rotatably disposed at the top of the outer shell, and the sealing block is disposed at the bottom of the top cover. A sealing structure is formed between the sealing block and the outer shell. The sealing block is made of natural rubber.

[0012] In some embodiments, the upper cover also includes a one-way valve passing through the top cover and the sealing block, with a valve cover threaded to one end of the one-way valve near the top cover, and the one-way valve is used to inject liquid and protective gas into the cavity.

[0013] In some embodiments, the outer side of the upper cover is provided with a locking block corresponding to the buckle, and multiple sets of locking blocks and buckles are provided.

[0014] In some embodiments, the upper cover further includes a second pressure gauge disposed on the side of the top cover, the second pressure gauge being used to detect the pressure of the cavity.

[0015] Based on the above technical solution, this utility model has at least the following beneficial effects: The top cover and the bottom cover together form a double seal for the main body. Then, liquid and gas are injected into the cavity between the top cover and the bottom cover through a one-way valve to form a liquid and gas sealing layer. During fermentation, some waste gas will escape into the cavity, thereby increasing the pressure in the cavity. This will force the liquid in the cavity into the liquid storage tank. Through the flow of liquid in the liquid storage tank and the cavity, as well as the compression of the protective gas, the pressure change of the sealing structure is buffered, thereby protecting the sealing structure. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the appearance structure of this utility model from a frontal view. Figure 2 This is a schematic diagram of the external structure of the upper tank of this utility model; Figure 3 This is a cross-sectional structural diagram of the present invention; Figure 4 This is a cross-sectional structural diagram of the sealing cap of this utility model.

[0017] The labels in the attached diagram are explained as follows: 1. Main body; 11. First pressure gauge; 2. Base; 3. Fixed shaft; 4. Stirring shaft; 5. Motor; 6. Upper tank; 7. Sealing cover; 80. Lower cover; 81. Outer shell; 811. Level gauge; 82. Inner body; 83. Sealing block; 84. Protruding ring; 85. Lower cover; 86. Inner cover; 87. Handle; 88. Liquid storage tank; 89. Buckle; 90. Upper cover; 91. Top cover; 92. Sealing block; 93. One-way valve; 94. Valve cover; 95. Clamping block; 96. Cavity; 97. Second pressure gauge.

[0018] It should be understood that the dimensions of the various parts shown in the accompanying drawings are not drawn to actual scale. Furthermore, the same or similar reference numerals denote the same or similar components. Detailed Implementation

[0019] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this application or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0020] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the accompanying drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0021] In related technical fields, fermentation tanks include an inner top cover and an outer top cover at the top of the tank. A multi-layer sealing structure is achieved by injecting liquid between the inner and outer top covers, thereby enhancing the sealing at the tank opening, preventing the entry of miscellaneous bacteria and outside air, and improving the sealing effect.

[0022] During the research process, the inventors discovered that the fermentation of feed inside the tank produces gases such as methane and carbon dioxide. The resulting pressure changes caused by these gases allow some of the waste gas to enter between the multiple sealing layers through the gaps in the inner sealing layer. This increases the pressure in the multiple sealing layers, causing the outermost cover to be lifted, creating gaps and damaging the sealing layer structure. This allows external bacteria to enter between the sealing layers and contaminate the feed inside the tank.

[0023] Based on the above findings, this application proposes a feed fermentation tank that forms multiple sealing layers through an upper cover, a lower cover, and the space between the upper and lower covers. Liquid and protective gas are filled into the sealing layers for sealing. The filled protective gas can effectively isolate outside air and create a certain pressure difference at the sealing opening, preventing outside air, microorganisms, and oxygen from entering the fermentation tank through the liquid sealing layer, thus maintaining a sterile environment inside the fermentation tank. The injected liquid can flow when the pressure changes within the cavity, buffering the pressure changes of the sealing structure and better protecting the sealing structure and the fermentation process of the feed inside the tank.

[0024] The following is for reference. Figures 1 to 4This application provides a detailed description of a feed fermentation tank according to some embodiments. One embodiment of the feed fermentation tank includes: a main body 1; a first pressure gauge 11 disposed on the surface of the main body 1; a base 2 circumferentially distributed at the bottom of the main body 1; a fixed shaft 3 disposed inside the main body 1; a stirring shaft 4 rotatably connected to the fixed shaft 3; one end of the stirring shaft 4 meshing with the output shaft of a motor 5 via a gear; an upper tank 6 welded to the top of the main body 1; and a sealing cover 7 welded to the top of the upper tank 6. The sealing cover 7 includes a lower cover 80 and an upper cover 90. A cavity 96 is formed between the lower cover 80 and the upper cover 90. The lower cover 80 includes an outer shell 81, an inner body 82 and a lower cap 85. The lower cap 85 is internally threaded to the inner body 82. The outer shell 81 extends inward from the inner side of the section near the upper tank 6 to form an annular rib. The inner body 82 extends in the axial direction with a convex ring 84. A liquid storage chamber 88 is formed between the convex ring 84, the outer shell 81 and the upper cover 90. The liquid storage chamber 88 is used to store sealing liquid and is connected to the cavity 96. The cavity 96 is used to fill sealing liquid and protective gas.

[0025] In this embodiment, the top cover 91 is rotatably connected to the outer shell 81. When the top cover 91 and the outer shell 81 are closed, a cavity 96 is formed between the sealing block 92, the outer shell 81, and the lower cover 85. A sealing block 83 and a convex ring 84 extend from the top of the inner body 82. The outer shell 81 is connected to the inner body 82 via an inwardly extending rib. A liquid storage chamber 88 is formed between the outer shell 81 and the convex ring 84. The height of the lower cover 85 is lower than that of the convex ring 84. The lower cover 85 is connected to the outer shell through the inner cover 86. The 81 are sealed together to form a mechanical seal structure. A cavity is formed inside the convex ring 84 of the outer shell 81 and at the top of the lower cover 85. This cavity is connected to the liquid storage tank 88. After the lower cover 85 is screwed into the inner body 82, liquid is injected into the cavity 96 through the one-way valve 93. When the liquid level is higher than the convex ring 84, it flows into the liquid storage tank 88, forming a liquid sealing layer. Subsequently, protective gas is injected into the cavity 96 through the one-way valve 93 to form a gas sealing layer. Liquid is injected into cavity 96 to liquid seal the lower cover 85 and inner body 82. When liquid is filled into cavity 96 and then protective gas is applied, the pressure inside cavity 96 increases. The channel between liquid storage chamber 88 and cavity 96 is sealed by the liquid, and the gas pressure inside liquid storage chamber 88 is relatively low. That is, there is a pressure difference between liquid storage chamber 88 and cavity 96. Liquid has low compressibility, while gas has high compressibility. This allows the liquid in cavity 96 to be forced into liquid storage chamber 88 for storage. At the same time, the air inside liquid storage chamber 88 is compressed. The liquid sealing layer can fill tiny gaps, further preventing the penetration of bacteria and spores and improving the reliability of the seal. At the same time, the liquid in the liquid sealing layer will exhibit a certain degree of compressibility under certain pressure, and its volume will decrease slightly, thereby absorbing some pressure. The gas sealing layer can buffer pressure changes through the compression and expansion of gas. At the same time, the gas sealing layer can also reduce the evaporation of the liquid sealing layer and prevent microbial contamination.

[0026] In this embodiment, during fermentation, when a portion of the liquid in cavity 96 evaporates, the pressure inside cavity 96 decreases, allowing liquid from storage chamber 88 to be squeezed into cavity 96 to replenish it. When waste gas from the fermentation process enters cavity 96, it causes the pressure inside cavity 96 to rise. Since the pressure in cavity 96 is greater than the pressure in storage chamber 88, the liquid in cavity 96 is forced into storage chamber 88. Through the pressure difference between storage chamber 88 and cavity 96, liquid flows between storage chamber 88 and cavity 96. Combined with the compression and expansion of gas and liquid, pressure changes between the sealing layers are buffered, reducing damage to the sealing structure.

[0027] refer to Figure 4In some embodiments, the height of the convex ring 84 is higher than the height of the lower cover 85, which allows the liquid contained between the convex ring 84 and the lower cover 85 to liquid seal the inner body 82 and the lower cover 85. At the same time, a liquid storage chamber 88 is formed between the convex ring 84 and the outer shell 81. The liquid will flow into the liquid storage chamber 88 only after the liquid between the convex ring 84 and the lower cover 85 is full. When protective gas is injected into the cavity 96, the liquid in the liquid storage chamber 88 can buffer the pressure change generated during the injection of protective gas. At the same time, when the waste gas generated by fermentation in the body 1 enters the cavity 96 from the gap between the inner body 82 and the inner cover 86, the pressure change generated during this period is buffered.

[0028] refer to Figure 4 In some embodiments, the lower cover 80 further includes a sealing block 83 and an inner cover 86. The sealing block 83 is formed by the inner body 82 extending radially and is disposed inside the convex ring 84. The lower cover 85 is threadedly connected to the inner body 82 through the inner cover 86 disposed at the bottom end. The inner cover 86 is an elastic natural rubber product. The sealing block 83 is the part of the inner body 82 that extends into the inner cover 86, which can prolong the path for bacteria to enter the body 1, increase the sealing effect on the body 1, and avoid contamination by bacteria.

[0029] In some embodiments, the lower cover 80 further includes a handle 87 and a buckle 89. The handle 87 is disposed at the top of the lower cover 85, and the buckle 89 is distributed circumferentially on the outer side of the outer shell 81. The handle 87 is connected to the lower cover 85, so that the operator can easily remove the lower cover 85 through the handle 87. The buckle 89 is connected to the locking block 95, which can press the top cover 91 to enhance the sealing effect.

[0030] refer to Figure 2 and Figure 4 In some embodiments, a level gauge 811 is embedded inside the housing 81, which is used to measure the liquid level in the cavity 96 and / or the liquid storage tank 88.

[0031] In some embodiments, the upper cover 90 includes a top cover 91 and a sealing block 92. The top cover 91 is rotatably disposed at the top of the outer shell 81, and the sealing block 92 is disposed at the bottom of the top cover 91. A sealing structure is formed between the sealing block 92 and the outer shell 81. The sealing block 92 is made of natural rubber. When the top cover 91 and the outer shell 81 are closed, compression is generated between the sealing block 92 and the outer shell 81 to enhance the sealing effect between the top cover 91 and the outer shell 81.

[0032] In some embodiments, the upper cover 90 further includes a one-way valve 93 that passes through the top cover 91 and the sealing block 92. The end of the one-way valve 93 near the top cover 91 is threadedly connected to a valve cover 94. The one-way valve 93 is used to inject liquid and protective gas into the cavity 96. The one-way valve 93 only allows fluid to flow in one direction. The flow direction of the one-way valve 93 is from the outside of the top cover 91 to the inside of the cavity 96. Gas and liquid can be injected into the cavity 96 through the one-way valve 93 to fill the cavity 96. The valve cover 94 is used to encapsulate the external interface of the one-way valve 93.

[0033] refer to Figure 2 and Figure 4 In some embodiments, the outer side of the upper cover 90 is provided with a latch 95 corresponding to the latch 89, and multiple sets of latches 95 and latches 89 are provided.

[0034] In some embodiments, the upper cover 90 further includes a second pressure gauge 97 disposed on the side of the top cover 91, the second pressure gauge 97 being used to detect the pressure of the cavity 96.

[0035] In this embodiment of the feed fermentation tank, feed and fermentation materials are poured into the main body 1, and the lower cover 85 is screwed into the inner body 82. At this time, the sealing block 83 of the inner body 82 is squeezed into the inner cover 86, extending the path for bacteria and gas to enter the main body 1, avoiding interference with the feed fermentation process in the main body 1 and affecting the quality of the fermentation product. Then, the top cover 91 is closed to further seal the main body 1. Subsequently, liquid is injected between the sealing block 92 and the lower cover 85 through the one-way valve 93. When the liquid level is higher than the height of the convex ring 84, the liquid enters the storage tank 88 to form a liquid level sealing layer. At this time, the liquid level in the storage tank 88 and the cavity 96 can be measured by the liquid level gauge 811 so that the operator can adjust the liquid level in time. Then, protective gas is injected into the cavity 96 through the one-way valve 93. The protective gas will fill the space between the liquid level sealing layer and the sealing block 92. At this time, the protective gas in the cavity 96 can be monitored by the second pressure gauge 97. The air pressure is monitored and adjusted to a suitable level. When the feed in the main body 1 is fermenting, the motor 5 drives the stirring shaft 4 to rotate through the gear on the output shaft, so that the stirring shaft 4 stirs the material in the main body 1, making the feed and material mix evenly and the fermentation more uniform. During this process, waste gas is generated during the fermentation of the feed in the main body 1. The pressure caused by the waste gas generated in the main body 1 can be monitored by the first pressure gauge 11. Some of the waste gas generated in the main body 1 will enter the cavity 96 through the gap between the inner body 82 and the inner cover 86. At this time, the liquid sealing layer and the gas sealing layer will be affected by the waste gas, which will compress the protective gas in the gas sealing layer. At the same time, the liquid in the liquid sealing layer can also absorb the pressure change, so that the pressure is evenly distributed in the liquid sealing layer and the gas sealing layer. The pressure change will also help to cope with the pressure change caused by the waste gas entering the cavity 96, effectively reducing the impact of pressure change on the sealing system.

[0036] Based on the above embodiments of the present invention, in the absence of explicit denial or conflict, the technical features of one embodiment can be advantageously combined with one or more other embodiments.

[0037] Although this application has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of this application. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A feed fermentation tank, comprising: The body (1), a first pressure gauge (11) disposed on the surface of the body (1), and a base (2) circumferentially distributed at the bottom end of the body (1) (1) has a fixed shaft (3) inside, and the fixed shaft (3) is rotatably connected to a stirring shaft (4). One end of the stirring shaft (4) is meshed with the output shaft of the motor (5) through a gear. The top of the body (1) is welded with an upper tank (6), and the top of the upper tank (6) is welded with a sealing cap (7). The sealing cap (7) is characterized in that it includes a lower cap (80) and an upper cap (90), and a cavity (96) is formed between the lower cap (80) and the upper cap (90). The lower cap (80) includes an outer shell (81), an inner body (82) and a lower cover (85). The lower cover (85) is internally threaded to the inner body (82). The outer shell (81) extends inward to form an annular rib in the section near the upper tank (6). The inner body (82) extends in the axial direction with a protruding ring (84). A liquid storage chamber (88) is formed between the protruding ring (84), the outer shell (81) and the upper cap (90). The liquid storage chamber (88) is used to store sealing liquid and is connected to the cavity (96). The cavity (96) is used to fill sealing liquid and protective gas.

2. The feed fermentation tank according to claim 1, characterized in that, The height of the convex ring (84) is higher than the height of the lower cover (85).

3. A feed fermentation tank according to claim 1, characterized in that, The lower cover (80) also includes a sealing block (83) and an inner cover (86). The sealing block (83) is formed by the inner body (82) extending radially and is located inside the convex ring (84). The lower cover (85) is threadedly connected to the inner body (82) through the inner cover (86) located at the bottom end. The inner cover (86) is made of elastic natural rubber.

4. A feed fermentation tank according to claim 1, characterized in that, The lower cover (80) also includes a handle (87) and a buckle (89). The handle (87) is located at the top of the lower cover (85), and the buckle (89) is distributed circumferentially on the outer side of the outer shell (81).

5. A feed fermentation tank according to claim 1, characterized in that, A level gauge (811) is embedded inside the housing (81), and the level gauge (811) is used to measure the cavity (96). The liquid level height of the inner and / or the liquid storage tank (88).

6. A feed fermentation tank according to claim 1, characterized in that, The upper cover (90) includes a top cover (91) and a sealing block (92), the top cover (91) being rotatably mounted on the outer casing. The top of the cover (91) is provided with the sealing block (92) at the bottom of the cover (91). The sealing block (92) and the outer shell (81) form a sealing structure. The sealing block (92) is a natural rubber product.

7. A feed fermentation tank according to claim 6, characterized in that, The upper cover (90) also includes a one-way valve (93) passing through the top cover (91) and the sealing block (92). A valve cover (94) is threadedly connected to one end of the one-way valve (93) near the top cover (91). (93) is used to inject liquid and protective gas into the cavity (96).

8. A feed fermentation tank according to claim 4, characterized in that, The outer side of the upper cover (90) is provided with a locking block (95) corresponding to the buckle (89), and multiple sets of locking blocks (95) and buckles (89) are provided.

9. A feed fermentation tank according to claim 6, characterized in that, The upper cover (90) also includes a second pressure gauge (97) disposed on the side of the top cover (91), the second pressure gauge (97) being used to detect the pressure of the cavity (96).

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