A fermenter lid, a fermenter and a method of using a fermenter

Abstract

The application discloses a fermentation tank cover, a fermentation tank and a use method of the fermentation tank, relates to the technical field of fermentation equipment and methods, and discloses the fermentation tank cover which comprises a cover body, a sealed storage cavity is arranged in the cover body, a ventilation structure is arranged on the cover body and is connected between the storage cavity and the outside, and gas can enter the storage cavity through the ventilation structure. The fermentation tank comprises the fermentation tank cover. The method comprises seven steps. The application prevents gas from gathering at the fermentation material, enables the gas to be discharged in time, reduces the influence of the gas on the fermentation quality, and in addition, does not require an operator to observe the generation of the gas in real time, reduces the manual labor intensity, and saves the labor cost. The application prevents the condensed water from directly dropping into the fermentation material, reduces the possibility that the growth environment of microorganisms in the fermentation material is deteriorated and the fermentation material is mildewed due to the influence of the condensed water, and reduces the influence of the condensed water on the fermentation quality.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fermentation equipment and methods, in particular to a fermentation tank cover, a fermentation tank and a use method of the fermentation tank. BACKGROUND

[0002] In the food industry, fermentation is a common process, and the process methods are similar. For example, part of the wine fermentation: the fermentation material such as grain is placed in a pottery jar or a pottery jar, and the jar opening is sealed with a plastic film. In order to provide a low-temperature anaerobic fermentation environment, the traditional fermentation method generally places the pottery jar or pottery jar in the basement or other low-temperature environment for natural fermentation.

[0003] During the wine fermentation process, the grain fermentation material will produce a large amount of gas. Using the above method for fermentation, only the operator can observe during the gas production peak period. After finding that the plastic film has a bulge phenomenon, the plastic film can be loosened to smoothly discharge the gas. If the gas is not discharged in time, the fermentation temperature will rise rapidly, directly affecting the fermentation quality. In addition, since the fermentation material produces heat while producing gas, there is a large temperature difference between the hot gas and the ambient air. When the hot gas contacts the plastic film, condensation occurs, and condensate accumulates on the inner surface of the plastic film. After a period of accumulation, the condensate quality increases, and cannot continue to adhere to the inner surface of the plastic film, and will drip into the fermentation material under the action of gravity, causing the growth environment of microorganisms in the fermentation material to deteriorate, the fermentation material to mold, and directly affecting the fermentation quality. SUMMARY

[0004] The purpose of the present application is to provide a fermentation tank cover, a fermentation tank and a use method of the fermentation tank to replace the plastic film, prevent the gas in the fermentation material from accumulating in the internal environment of the fermentation material, and prevent the gas in the fermentation material from condensing to form condensate and dripping into the fermentation material, affecting the quality of the fermentation material.

[0005] The technical solution adopted by the present application is as follows:

[0006] A fermentation tank cover, comprising a cover body, a closed storage cavity is arranged in the cover body, a ventilation structure is arranged on the cover body and communicates the storage cavity with the outside, and gas can enter the storage cavity through the ventilation structure; when the storage cavity is in a non-closed state, gas and / or liquid are discharged from the storage cavity.

[0007] The gas produced by the fermentation covered by the cover moves towards the cover and gathers at the cover. When the gas pressure produced by the gathering is greater than the gas pressure in the storage cavity, the gas enters the storage cavity through the ventilation structure. The storage cavity provides space for the gas, preventing the gas from gathering above the fermentation for a long time and affecting the fermentation quality, and preventing the gas from condensing on the cover and forming condensate droplets that fall into the fermentation and affect the fermentation quality.

[0008] Preferably, the cover is provided with a discharge structure that communicates the storage cavity with the outside. The discharge structure can make the storage cavity in a closed state or in an unclosed state. When the discharge structure makes the storage cavity in the unclosed state, the storage cavity discharges gas and / or liquid.

[0009] Preferably, the discharge structure is provided with a liquid discharge structure and / or a gas discharge structure. When the gas discharge structure makes the storage cavity in the unclosed state, the storage cavity discharges gas through the gas discharge structure. When the liquid discharge structure makes the storage cavity in the unclosed state, the storage cavity discharges liquid through the liquid discharge structure.

[0010] When the space of the storage cavity is filled with gas and / or liquid and cannot enter gas again, the gas discharge structure is opened to release the gas from the storage space, and the liquid discharge structure is opened to discharge the liquid from the storage space. The storage space is provided for subsequent gas and / or liquid to ensure that the gas produced by the fermentation can enter the storage cavity, thereby reducing the accumulation of gas and the dripping of condensate on the fermentation.

[0011] Preferably, the ventilation structure is located on the lower surface of the cover to allow the gas below the cover to enter the storage cavity. The gas discharge structure is located on the upper surface of the cover to allow the gas in the storage cavity to be discharged from above the cover. The liquid discharge structure is located on the lower surface of the cover to allow the liquid in the storage cavity to be discharged from the liquid discharge structure.

[0012] The gas produced by the fermentation generally has heat, and hot gas moves upward. The lower surface of the cover is located above and close to the fermentation, so the gas produced by the fermentation moves towards the lower surface of the cover. The ventilation structure is provided on the lower surface of the cover to allow the gas to enter the storage cavity as soon as possible. The gas in the storage cavity also moves upward. The gas discharge structure is provided on the upper surface of the cover to release the gas accumulated inside the upper surface of the cover as soon as possible and free up space in the storage cavity. The liquid in the storage cavity falls downward under the action of gravity and accumulates inside the lower surface of the cover. The liquid discharge structure is provided on the lower surface of the cover to discharge the liquid accumulated therein as soon as possible and free up space in the storage cavity.

[0013] Preferably, the cover body is provided with a liquid collecting area, which is in communication with the storage cavity, and the liquid collecting area is lower than the storage cavity, so that the liquid in the storage cavity can flow into the liquid collecting area; the liquid discharging structure is in communication with the liquid collecting area, so that the liquid in the liquid collecting area and / or the storage cavity can be discharged.

[0014] Preferably, the storage cavity of the cover body is provided with an inclined surface, which is arranged around the center of the cover body, so that a conical surface structure with a high middle and a low side is formed in the storage cavity, and the liquid collecting area is located in the lower area of the conical surface structure, and the liquid in the storage cavity can flow into the liquid collecting area along the conical surface structure.

[0015] The liquid has mass and will drip downward and flow to a lower place under the influence of gravity, the liquid collecting area is used to provide a space for the liquid to gather, and the liquid discharging structure is arranged at this position to facilitate the discharge of the liquid in the liquid collecting area and / or the storage cavity.

[0016] Preferably, the cover body is provided with a gas collecting area, which is in communication with the storage cavity, and the gas collecting area is higher than the storage cavity, so that the gas in the storage cavity can flow into the gas collecting area; the gas discharging structure is in communication with the gas collecting area, so that the gas in the gas collecting area and / or the storage cavity can be discharged.

[0017] Preferably, the storage cavity of the cover body is provided with an inclined surface, which is arranged around the center of the cover body, so that a conical surface structure with a high middle and a low side is formed in the storage cavity, and the gas collecting area is located in the middle area of the conical surface structure, and the gas in the storage cavity can flow into the gas collecting area along the conical surface structure.

[0018] The gas will move upward and gather at a high place when heated, the gas collecting area is used to provide a space for the gas to gather, and the gas discharging structure is arranged at this position to facilitate the discharge of the gas in the gas collecting area and / or the storage cavity.

[0019] Preferably, the cover body comprises an inner liner and an outer shell, the inner liner and the outer shell are sealed with each other to form the storage cavity; the inner liner and the outer shell are in a non-closed state, the opening of the liquid discharging structure and / or the opening of the gas discharging structure, so that the storage cavity is in a non-closed state.

[0020] The inner liner and the outer shell facilitate the manufacture of the cover body and the formation of the storage space.

[0021] Preferably, the lower surface of the cover body is made of a material that can be expanded and deformed, and the amount of gas entering the storage space increases, the lower surface of the cover body expands, and the cover body provides a larger storage space for the gas; the upper surface of the cover body is made of a material with small specific heat capacity, which is easily affected by the temperature outside the cover body, and the temperature difference between the gas entering the storage space and the gas is large, so that the gas in the storage space is easy to condense when contacting the upper surface of the cover body.

[0022] A fermentation tank, comprising a tank body and a tank cover, the tank cover being arranged on the upper part or inside of the tank body, and a sealing relationship being formed between the tank cover and the tank body so as to isolate the inside of the tank body from the outside environment; the tank cover comprises a cover body provided with a sealed storage cavity, and a ventilation structure is arranged on the cover body and communicates the storage cavity with the outside, and gas can enter the storage cavity through the ventilation structure; when the storage cavity is in a non-sealing state, gas and / or liquid is discharged from the storage cavity.

[0023] Preferably, a discharge structure is arranged on the cover body and communicates the storage cavity with the outside, and the discharge structure can make the storage cavity in a sealing state or in a non-sealing state; when the discharge structure makes the storage cavity in a non-sealing state, gas and / or liquid is discharged from the storage cavity.

[0024] Preferably, the bottom of the tank body is provided with a liquid accumulation area, and a filter structure is arranged in the tank body and located above the liquid accumulation area; the fermentation material is placed on the filter structure and is subjected to solid-liquid separation, and the separated liquid is collected in the liquid accumulation area.

[0025] The fermentation material in the inside of the tank body will generate liquid during the fermentation process, and the fermentation material cannot be soaked in the liquid for a long time; the filter structure is used to separate the fermentation material from the liquid, reduce the time for which the fermentation material is soaked in the liquid, and further reduce the influence of the liquid on the fermentation quality of the fermentation material.

[0026] Preferably, a sealing member is arranged at the contact position of the inner wall of the tank body and / or the outer wall of the cover body, so as to form a sealing relationship between the cover body and the tank body.

[0027] The sealing member is used to seal the tank body and the cover body, and provides help for the anaerobic environment required by the fermentation process of the fermentation material.

[0028] Preferably, the discharge structure is arranged as a liquid discharge structure and / or a gas discharge structure; the cover body comprises an inner liner and an outer shell, and the inner liner and the outer shell are sealed with each other to form the storage cavity; the inner liner and the outer shell are in a non-sealing state, the liquid discharge structure is opened, and / or the gas discharge structure is opened, so as to discharge the gas and / or liquid in the storage cavity.

[0029] A fermentation method of a fermentation tank, characterized in that the fermentation tank is used to complete the method, and the method comprises the following steps:

[0030] S01, placing the fermentation material on the filter structure in the inside of the tank body;

[0031] S02, the liquid formed by the fermentation material is filtered through the filter structure to the liquid accumulation area;

[0032] S03, the gas produced by the fermentation product flows upward and gathers at the lower surface of the cover, when the air pressure generated by the gas gathering is greater than the air pressure in the storage cavity, the gas enters the storage cavity along the ventilation structure;

[0033] S04, when the temperature of the inner wall of the upper surface of the cover is less than the temperature of the gas in the storage cavity, the gas in the storage cavity condenses and forms a condensate on the inner wall of the upper surface of the cover, which drips into the storage cavity;

[0034] S05, when the gas in the storage cavity exceeds the threshold value, i.e. the space in the storage cavity is filled with gas, the exhaust structure is opened to release the gas in the storage cavity;

[0035] S06, after the fermentation is completed, the cover is removed, the liquid discharge structure is opened, and the gas and / or liquid in the storage cavity is released.

[0036] During the fermentation process, the fermentation product and the liquid produced by it are separated by the filter structure, the gas produced by the fermentation product enters the storage cavity along the ventilation structure, and condensation occurs in the storage cavity. The gas does not accumulate at the location of the fermentation product for a long time, and the condensate formed by the condensation of the gas also does not drip into the fermentation product in large quantities. The fermentation tank and the corresponding fermentation method make the fermentation product not affected by the liquid and gas produced by itself during the entire fermentation process, thereby reducing the influence of the fermentation quality of the fermentation product.

[0037] As described above, due to the adoption of the above technical solutions, the beneficial effects of the present application are: the gas produced by the fermentation product during the fermentation process rises and enters the storage cavity from the ventilation structure. The present application prevents the gas from accumulating at the fermentation product, so that the gas can be discharged in time, reducing the influence of the gas on the fermentation quality. In addition, it is not necessary for the operator to observe the production of the gas in real time, reducing the labor intensity and saving labor costs.

[0038] The gas entering the storage cavity condenses to form condensed water, which accumulates and drips into the storage cavity. The present application prevents the condensed water from directly dripping into the fermentation product, reduces the possibility of the growth environment of the microorganisms in the fermentation product being deteriorated and the fermentation product being mildewed due to the influence of the condensed water, and reduces the influence of the condensed water on the fermentation quality. BRIEF DESCRIPTION OF DRAWINGS

[0039] Figure 1 It is a longitudinal sectional view of the fermentation tank cover of Example 1 along the width direction.

[0040] Figure 2 It is a longitudinal sectional view of the fermentation tank cover of Example 2 along the length direction.

[0041] Figure 3 It is Figure 1 and Figure 2 the partial enlarged view of A in

[0042] Figure 4 for Figure 1 and Figure 2 A partial enlarged view of B.

[0043] Figure 5 This is a schematic diagram of the structure of the fermentation tank cover shell and the fixing frame in Example 1.

[0044] Figure 6 Schematic diagram of the structure of the fermentation tank cover of Example 1.

[0045] Figure 7 This is a longitudinal cross-sectional view of the fermentation tank cover of Example 2 along the width direction.

[0046] Figure 8 for Figure 7 A partial enlarged view of C in the middle.

[0047] Figure 9 This is a longitudinal cross-sectional view of the fermentation tank cover of Example 2 along the length direction.

[0048] Figure 10 for Figure 9 A partial enlarged view of D in the middle.

[0049] Figure 11 This is a bottom view of the fermentation tank cover of Example 2.

[0050] Figure 12 for Figure 11 A partial enlarged view of E in the middle.

[0051] Figure 13 Schematic diagram of the structure of the fermentation tank cover of Example 2.

[0052] Figure 14 Schematic diagram of the structure of the fermentation tank in Example 3.

[0053] Figure 15 This is a longitudinal cross-sectional view of the fermentation tank in Example 3 along the length direction.

[0054] Figure 16 This is a longitudinal cross-sectional view of the fermentation tank in Example 3 along the width direction.

[0055] Figure 17 This is a schematic diagram of the structure of the fermentation tank in Example 4.

[0056] Figure 18 This is a longitudinal cross-sectional view of the fermentation tank in Example 4 along the length direction.

[0057] Figure 19 This is a longitudinal cross-sectional view of the fermentation tank in Example 4 along the width direction.

[0058] Markings in the figure: cover body -1, shell -11, check valve -111, one-way exhaust valve -112, lining -12, ventilation structure -121, mounting hole -122, fixing frame -13, fixing hole -131, seal -14, handle -15, trough body -2, filter structure -21, drain pipe -22, valve -23, temperature measuring tube -24, stabilizing frame -3. DETAILED DESCRIPTION

[0059] The present invention will be described in detail below with reference to the accompanying drawings.

[0060] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention 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 only used to explain the present invention and are not intended to limit the present invention.

[0061] Take wine fermentation as an example:

[0062] Example 1:

[0063] Please see Figure 1 、 Figures 3 to 6 A fermentation tank cover includes a rectangular cover body, wherein the four edges of the cover body 1 are bent downward, the middle portion is horizontal, and the edges and the middle portion form an angle of 100° to 150°, preferably 131°.

[0064] The cover body 1 includes a stainless steel outer shell 11 and a silicone membrane lining 12. A mesh fixing frame 13 is fixed inside the outer shell 11. The edge of the fixing frame 13 is sealed and welded to the edge of the outer shell 11, forming a gap between the fixing frame 13 and the outer shell 11. A fixing hole 131 is provided on the fixing frame 13, and a docking hole adapted to the fixing hole 131 is also provided on the lining 12. The lining 12 fits the fixing frame 13, and the docking hole and the fixing hole 131 are coaxial and concentric. Both are threaded holes. The lining 12 is fixed to the fixing frame 13 by means of bolts passing through the docking hole and the fixing hole 131. The fixing frame 13 is located between the lining 12 and the outer shell 11, and a storage cavity is formed between the lining 12 and the outer shell 11. The lining 12 is a soft food-grade silicone membrane with a thickness of 0.5 to 1.5 mm, preferably 1 mm.

[0065] The inner liner 12 is provided with a ventilation structure 121 at the bending portion, which is a ventilation hole, and the inner liner 12 is formed with an inclined surface from the bending portion to the edge, and the lowest point of the inclined surface is a liquid collecting area, and the ventilation structure 121 is located at the highest point of the inclined surface. The hot carbon dioxide gas enters the storage cavity through the ventilation structure 121, and condenses on the outer shell 11, and the condensed water vertically falls due to gravity, and the condensed water slides along the inclined surface formed by the bending portion of the inner liner 12 to the liquid collecting area due to the design of the position of the bending portion of the inner liner 12 and the ventilation structure 121. The condensed water is prevented from entering the fermentation material again through the ventilation structure 121. In another preferred embodiment, the ventilation structure 121 is a hole through which only gas can pass, and only carbon dioxide in the form of gas can pass, and condensed water cannot pass, so as to prevent the condensed water in the storage cavity from entering the fermentation material again through the ventilation structure 121. The design of the bending portion of the cover 1 makes it convenient to collect and discharge the condensed water collected in the liquid collecting area after the cover 1 is removed after the completion of the entire fermentation process. In addition, the stainless steel material of the outer shell 11 is easily affected by the external temperature, so as to facilitate the formation of a large temperature difference with the fermentation material, so that the hot carbon dioxide is more likely to condense on the outer shell 11 to form condensed water, thereby providing a space for the carbon dioxide continuously entering the storage cavity to be collected. The silica gel film material of the inner liner 12 facilitates the formation of a small temperature difference with the fermentation material, so that when the hot carbon dioxide touches the inner liner 12, a large amount of condensed water is not formed, thereby preventing the condensed water from being formed on the inner liner 12 and dropping into the fermentation material. In addition, the inner liner 12 is also facilitated to swell and deform, thereby providing a larger storage space for the carbon dioxide gas.

[0066] The outer shell 11 is provided with a liquid discharge structure, which is a liquid discharge hole, and a one-way valve 111 is fixedly arranged in the liquid discharge structure, which is arranged in a sealing manner and communicates the storage cavity with the external environment, and the one-way valve 111 is a steel ball type one-way valve. The bending portion of the outer shell 11 is also formed with an inclined surface, and the liquid discharge structure is arranged at a position close to the liquid collecting area and communicates with the liquid collecting area. Since the condensed water is collected in the liquid collecting area, the liquid discharge structure arranged at the position facilitates the discharge of the condensed water after the fermentation is completed.

[0067] The top of the edge of the horizontal portion of the outer shell 11 is the highest point of the inclined surface, and a gas collecting area is formed at the position, and a gas discharge structure is arranged at each of the four corners of the horizontal portion of the outer shell 11, which is a gas overflow hole, and a one-way gas valve 112 is fixedly arranged in the gas discharge structure in a sealing manner, and the direction is from the storage cavity to the external environment. In the case that the generation rate of the carbon dioxide gas is high, the one-way gas valve 112 is opened, and the carbon dioxide in the storage cavity is discharged along the gas discharge structure, thereby providing a space for other carbon dioxide generated by the fermentation material.

[0068] Embodiment 2:

[0069] Please refer to Figures 2 to 4 , Figures 7 to 13The application discloses a fermenter cover, which comprises a cover body 1 shaped as a rectangular flat plate.

[0070] The cover body 1 comprises a stainless steel shell 11 and a silica gel membrane lining 12. The center of the inner wall of the shell 11 is downwardly protruded, and a mounting hole is formed at the protruded position. The four sides of the inner wall of the shell 11 are downwardly protruded, and a plurality of mounting holes are uniformly formed at the protruded positions. The center of the lining 12 is provided with a counter mounting hole 122 matched with the mounting hole of the center of the inner wall of the shell 11. The four sides of the lining 12 are also uniformly provided with a plurality of counter mounting holes 122 matched with the mounting holes of the four sides of the inner wall of the shell 11. The mounting holes and the counter mounting holes 122 are all threaded holes, and are aligned. The lining 12 is fixed on the shell 11 by means of bolts penetrating through the mounting holes and the counter mounting holes 122. The lining 12 and other parts at the edge of the shell 11 can be fixed by sealing and bonding, or can not be additionally fixed.

[0071] The length of the downward protrusion of the center of the inner wall of the shell 11 is shorter than the length of the downward protrusion of the four sides of the inner wall of the shell 11, so that a storage cavity is formed between the lining 12 and the shell 11, and the height of the center of the lining 12 is higher than the height of the four sides of the lining 12, thereby forming an inclined surface of the lining 12 with the center being the highest and the four sides being lower. The lowest point of the inclined surface is a liquid collecting area, and the highest point is a gas collecting area. The lining 12 is a soft food-grade silica gel membrane with a thickness of 0.5-1.5 mm, preferably 0.5 mm.

[0072] A plurality of ventilation structures 121 are uniformly and penetratively formed around the counter mounting hole 122 of the center of the lining 12, and the ventilation structures 121 are ventilation holes. Hot carbon dioxide gas enters the storage cavity through the ventilation structures 121, and condenses on the shell 11. The condensed water vertically falls under the action of gravity, and slides along the inclined surface of the lining 12 to the liquid collecting area. The condensed water is prevented from penetrating through the ventilation structures 121 into the fermenting material. In another preferable embodiment, the ventilation structures 121 are holes through which only gas can pass, so that only carbon dioxide gas can pass, and the condensed water cannot pass. The installation form of the lining 12 is designed so that after the whole fermentation process is completed, the cover body 1 is removed, and the condensed water collected in the liquid collecting area can be conveniently discharged. In addition, the stainless steel material of the shell 11 is easily affected by external temperature, so that a large temperature difference is formed between the shell 11 and the inside of the fermenter, so that the hot carbon dioxide gas is more easily condensed on the shell 11 to provide a space for the carbon dioxide gas entering the storage cavity to be collected. The silica gel membrane material of the lining 12 is designed so that a small temperature difference is formed between the lining 12 and the fermenting material, so that when the hot carbon dioxide gas contacts the lining 12, a large amount of condensed water is not formed, and the condensed water formed on the lining 12 is prevented from being gathered and falling into the fermenting material. The silica gel membrane material is also convenient for swelling and deforming, so as to provide a larger storage space for the carbon dioxide gas.

[0073] A drain structure is provided on the shell 11 and penetrates the shell 11 to communicate with the storage cavity. The drain structure is a drain hole. A check valve 111 is fixed in the drain structure to communicate the storage cavity with the external environment in one direction. The check valve 111 is a steel ball type check valve. The drain structure is provided at the liquid collecting area of the edge of the shell 11 and communicates with the liquid collecting area. Since the condensed water is collected at the liquid collecting area, the drain structure is provided at this position to facilitate the discharge of the condensed water after the fermentation is completed.

[0074] The top edge of the shell 11 is the highest point of the inclined surface, i.e. the gas collecting area. A gas discharge structure is provided at each corner of the top edge of the shell 11. The gas discharge structure communicates with the gas collecting area and is an overflow hole. A one-way gas discharge valve 112 is fixed in the gas discharge structure to communicate the storage cavity with the external environment in one direction. In the case that the carbon dioxide gas is generated at a high rate, the one-way gas discharge valve 112 is opened, and the carbon dioxide in the storage cavity is discharged along the gas discharge structure to provide space for other carbon dioxide generated by the fermentation material.

[0075] The same scheme as in Example 1 and Example 2:

[0076] A handle 15 is fixed at each of the opposite sides of the outer top of the horizontal part of the shell 11 to facilitate the lifting and placing of the cover body 1 by the operator.

[0077] Example 3:

[0078] Please refer to Figures 14 to 16 A fermentation tank includes a tank body 2 and the fermentation tank cover as described in Example 1. The cover body 1 is located inside the tank body 2 and presses on the fermentation material in the tank body 2.

[0079] A sealing member 14 is fixed around the periphery of the side wall of the cover body 1. The sealing member 14 is an elastic silica gel sealing strip. The sealing member 14 tightly abuts against the inner wall of the tank body 2. The tank body 2 and the cover body 1 are sealed by the sealing member to isolate the inside of the fermentation tank from the external environment and to provide a help for the anaerobic environment required in the fermentation process of the fermentation material.

[0080] Example 4:

[0081] Please refer to Figures 17 to 19 A fermentation tank includes a tank body 2 and the fermentation tank cover as described in Example 2. The cover body 1 covers the top of the tank body 2 to close the opening of the top of the tank body 2.

[0082] A sealing member 14 is fixed around the periphery of the bottom of the cover body 1. The sealing member 14 is an elastic silica gel sealing strip. The sealing member 14 tightly abuts against the inner wall of the tank body 2. The tank body 2 and the cover body 1 are sealed by the sealing member to isolate the inside of the fermentation tank from the external environment and to provide a help for the anaerobic environment required in the fermentation process of the fermentation material.

[0083] The same scheme as in Example 3 and Example 4:

[0084] The bottom of the groove body 2 is a horizontal semi-cylindrical structure, and a filtering structure 21 capable of only passing liquid is fixed in the groove body 2. The filtering structure 21 is a filter plate, and the filtering structure 21 and the bottom of the groove body 2 form a liquid accumulation area. The fermentation material in the interior of the groove body 2 is placed on the filtering structure 21 and cannot fall to the bottom of the groove body 2 through the filtering structure 21. In the fermentation of wine, part of the yellow water is generated in the fermentation process due to the moisture contained in the grain fermentation material. The design of the filtering structure 21 enables the yellow water to pass through and slide along the arc inner wall of the groove body 2 to the liquid accumulation area at the bottom of the groove body 2, thereby isolating the fermentation material from the yellow water, enabling the yellow water to directly separate from the fermentation material in the fermentation process, preventing part of the fermentation material from being soaked in the yellow water and being unable to be separated, and affecting the fermentation quality. The bottom of the liquid accumulation area is connected with a drainage mechanism. The drainage mechanism includes a drainage pipe 22 and a valve 23 matched with the drainage pipe. After the fermentation is completed, the valve 23 is opened, and the yellow water accumulated in the liquid accumulation area is discharged along the drainage pipe 22.

[0085] A temperature measuring pipe 24 is sealingly fixed in a temperature measuring opening formed in the side wall of the groove body 2.

[0086] The stability frame 3 is further provided with movable wheels at the bottom according to actual needs, so as to facilitate the movement of the groove body 2 and reduce the labor intensity of manual carrying.

[0087] The groove body 2 is made of stainless steel material, which is different from the traditional ceramic jar or ceramic jar made of fragile material, and is convenient for realizing automatic transfer and transportation, and does not need to be completely transferred by manual labor in the production process.

[0088] The fermentation tank cover replaces the plastic film. The sealing method of the plastic film requires high quality of the operator, and the plastic film cannot achieve the condition of automatic production.

[0089] Embodiment 5:

[0090] A fermentation method of a fermentation tank, which is completed by using the fermentation tank of embodiment 3 or embodiment 4, and includes the following steps:

[0091] S01, the fermentation material is placed on the filtering structure 21 in the interior of the groove body 2 and is compacted to discharge the gas in the fermentation material;

[0092] S02, the yellow water generated in the fermentation process of the fermentation material passes through the filtering structure 21 and is filtered into the liquid accumulation area;

[0093] S03, the carbon dioxide gas generated by the fermentation material flows upward and is gathered at the lower surface of the inner lining 12. When the gas pressure generated by the gathering of the carbon dioxide gas is greater than the gas pressure in the storage cavity, the carbon dioxide gas enters the storage cavity through the ventilation structure 121;

[0094] S04, when the temperature of the inner wall of the shell 11 is less than the temperature of the carbon dioxide gas in the storage cavity, the carbon dioxide gas in the storage cavity contacts the shell 11, condensation occurs, and condensed water is formed on the inner wall of the shell 11, which continuously accumulates until it drips into the storage cavity under the action of gravity;

[0095] S05, when the carbon dioxide gas in the storage cavity exceeds a threshold value, i.e., the space in the storage cavity is filled with gas, the exhaust structure is opened to release the carbon dioxide gas in the storage cavity;

[0096] S06, after the fermentation is completed, the cover 1 is removed, the liquid discharge structure is opened, and the carbon dioxide gas and / or condensed water in the storage cavity is released;

[0097] S07, the valve 23 is opened to discharge the yellow water in the accumulated liquid area.

[0098] The principles and implementation modes of the present application are described by applying specific embodiments in the present application, and the above embodiment descriptions are only used to help understand the method of the present application and its core idea. It should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, the present application can be improved and modified in several ways, and these improvements and modifications also fall within the protection scope of the claims of the present application. In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "vertical", "horizontal", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, or the orientations or positional relationships of the product of the present application when it is usually placed, and are only used to facilitate the description of the present application and simplify the description, and therefore cannot be understood as indicating or implying that the indicated mechanisms or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

Claims

1. A fermenter lid comprising a lid body, characterised in that, The cover is provided with a closed storage cavity, and the cover is provided with a ventilation structure communicating the storage cavity with the outside, and gas can enter the storage cavity through the ventilation structure; when the storage cavity is in a non-closed state, gas and / or liquid is discharged from the storage cavity; The cover is provided with a discharge structure communicating the storage cavity with the outside, and the discharge structure can make the storage cavity in a closed state or a non-closed state; when the discharge structure makes the storage cavity in a non-closed state, gas and / or liquid is discharged from the storage cavity; The discharge structure is provided with a liquid discharge structure and / or a gas discharge structure; when the gas discharge structure makes the storage cavity in a non-closed state, the storage cavity discharges gas through the gas discharge structure; when the liquid discharge structure makes the storage cavity in a non-closed state, the storage cavity discharges liquid through the liquid discharge structure; The ventilation structure is located on the lower surface of the cover, and gas below the cover can enter the storage cavity; The gas discharge structure is located on the upper surface of the cover, and gas in the storage cavity can be discharged from above the cover; the liquid discharge structure is located on the lower surface of the cover, and liquid in the storage cavity can be discharged from the liquid discharge structure; the cover comprises an inner liner and an outer shell, and the inner liner and the outer shell are sealed from each other to form the storage cavity; The inner liner and the outer shell are in a non-closed state, and the opening of the liquid discharge structure and / or the opening of the gas discharge structure can make the storage cavity in a non-closed state; The cover comprises a stainless steel outer shell and a silica gel membrane inner liner, the inner shell is fixed with a reticular fixed frame, the edge of the fixed frame is sealed and welded with the edge of the outer shell, and a gap is formed between the fixed frame and the outer shell; the lower surface of the cover is made of a material capable of swelling and deforming, the amount of gas entering the storage space increases, the lower surface of the cover swells, and a larger storage space is provided for the gas; the upper surface of the cover is made of a material with small specific heat capacity, which is easily affected by the temperature outside the cover, and the temperature difference between the gas entering the storage space and the gas is large, so the gas in the storage space is easily condensed when contacting the upper surface of the cover.

2. The fermenter lid of claim 1, wherein, The cover is provided with a liquid collecting area, the liquid collecting area is communicated with the storage cavity, and the liquid collecting area is lower than the storage cavity, so that liquid in the storage cavity can flow into the liquid collecting area; The liquid discharge structure is communicated with the liquid collecting area, and liquid in the liquid collecting area and / or the storage cavity can be discharged.

3. The fermenter lid of claim 2, wherein, The storage cavity of the cover is provided with an inclined surface, the inclined surface is arranged around the center of the cover, so that a conical surface structure with high middle and low edges is formed in the storage cavity, the liquid collecting area is located in the lower area of the conical surface structure, and liquid in the storage cavity can flow into the liquid collecting area along the conical surface structure.

4. The fermenter lid of claim 1, wherein, The cover is provided with a gas collecting area, the gas collecting area is communicated with the storage cavity, and the gas collecting area is higher than the storage cavity, so that gas in the storage cavity can flow into the gas collecting area; The gas discharge structure is communicated with the gas collecting area, and gas in the gas collecting area and / or the storage cavity can be discharged.

5. The fermenter lid of claim 4, wherein, The storage cavity of the cover is provided with an inclined surface, the inclined surface is arranged around the center of the cover, so that a conical surface structure with high middle and low edges is formed in the storage cavity, the gas collecting area is located in the middle area of the conical surface structure, and gas in the storage cavity can flow into the gas collecting area along the conical surface structure.

6. A fermenter comprising a tank body and the fermenter lid according to any one of claims 1 to 5, characterized in that, The fermentation tank cover can be placed on the upper part or inside of the tank body, and a sealed relationship can be formed between the fermentation tank cover and the tank body, so that the inside of the tank body is isolated from the external environment; the tank body bottom is provided with a liquid accumulation area, and the tank body is provided with a filter structure, and the filter structure is located above the liquid accumulation area; the fermentation material is placed on the filter structure and is subjected to solid-liquid separation, and the separated liquid is collected in the liquid accumulation area; the tank body inner wall and / or the cover body outer wall are provided with a sealing element at the contact position, so that a sealed relationship is formed between the cover body and the tank body.

7. A fermentation method of a fermenter, characterized by, The fermentation tank is completed by using the fermentation tank as claimed in claim 6, including the following steps: S01, placing the fermentation material on the filter structure inside the tank body; S02, the liquid formed by the fermentation material is filtered into the liquid accumulation area through the filter structure; S03, the gas generated by the fermentation material flows upward and gathers at the lower surface of the cover body, when the air pressure generated by the gas gathering is greater than the air pressure in the storage cavity, the gas enters the storage cavity along the ventilation structure; S04, when the temperature of the inner wall of the upper surface of the cover body is less than the temperature of the gas in the storage cavity, the gas in the storage cavity condenses and forms a condensed liquid on the inner wall of the upper surface of the cover body, which drips into the storage cavity; S05, when the gas in the storage cavity exceeds the threshold value, that is, the space in the storage cavity is filled with gas, the exhaust structure is opened to release the gas in the storage cavity; S06, after the fermentation is completed, the cover body is removed, the liquid discharge structure is opened, and the gas and / or liquid in the storage cavity is released.

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