Carbon dioxide explosion-proof device for fermentation production

Abstract

The utility model relates to the technical field of fermentation, in particular to a carbon dioxide explosion-proof device for fermentation production, which comprises an output pipe communicated with a fermentation tank, a plurality of branch pipes are arranged at the tail end of the output pipe, each branch pipe is respectively communicated with an adsorption tank filled with a filter solution, and the filter solution is arranged in the adsorption tank. A breather pipe communicated with the branch pipe is arranged in the adsorption tank, a gas distribution device is arranged at the output end of the breather pipe, and the gas distribution device comprises a plurality of gas distribution heads arranged in the filtering solution, so that the contact time of mixed gas and the filtering solution is prolonged, the content of ethanol is further reduced, and the filtering effect of carbon dioxide is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of fermentation, in particular to a carbon dioxide explosion-proof device during the fermentation process of alcohol. Background Art

[0002] In the process of producing ethanol by fermenting corn raw materials, a mixture of carbon dioxide, alcohol substances and water vapor will be produced in the fermentation tank. For large and medium-sized alcohol production enterprises, the amount of carbon dioxide released is obviously considerable. Liquid carbon dioxide and solid dry ice are important industrial raw materials, widely used in many fields, and have broad market prospects. If these mixed gases are produced and directly discharged, it will cause a huge waste of resources. The existing treatment method is to collect these gases, but during the collection process, a part of ethanol will be mixed into the carbon dioxide. If it is collected directly, it will not only increase the difficulty of subsequent carbon dioxide purification, but also increase the risk of explosion during the collection process due to the flammability of ethanol. The existing treatment method is to directly pass the mixed gas into water and absorb ethanol through water. However, due to the short contact time between the mixed gas and the water, the ethanol is not completely absorbed, and there is still a certain risk during collection. Therefore, this technical solution is proposed for improvement. Utility Model Content

[0003] The purpose of the utility model is to overcome the disadvantage of the prior art that there is a high risk of explosion when collecting carbon dioxide in alcohol production, and to provide a carbon dioxide explosion-proof device for fermentation production.

[0004] In order to achieve the above-mentioned purpose, the embodiment of the utility model specifically adopts the following technical scheme: a carbon dioxide explosion-proof device for fermentation production, including an output pipe connected to a fermentation tank, a plurality of branch pipes are arranged at the end of the output pipe, each of the branch pipes is respectively connected to an adsorption tank filled with a filtered solution, a ventilation pipe connected to the branch pipe is arranged inside the adsorption tank, and an air distribution device is arranged at the output end of the ventilation pipe, and the air distribution device includes a plurality of air distribution heads arranged inside the filtered solution.

[0005] Furthermore, the branch pipe is connected to the ventilation pipe through a flange, and a collecting pipe is provided on the top of the adsorption tank, and the collecting pipe is connected to the carbon dioxide collecting tank.

[0006] Furthermore, a circulation pipe is provided on the side wall of the adsorption tank, and the circulation pipe is connected to a water tank.

[0007] Furthermore, a baffle for condensing water is arranged above the air distribution head, a plurality of through holes are arranged in the middle of the baffle, and a movable cover is hinged at the top of the through hole.

[0008] Furthermore, the air distribution head is connected to the ventilation pipe through a bend pipe, the air distribution head is cylindrical, and the air outlet of the air distribution head is arranged on the bottom surface.

[0009] Furthermore, the bottom of the air distribution head is lower than the water inlet of the circulation pipe.

[0010] The beneficial effects of the embodiment of the utility model are as follows: a baffle for condensing water is arranged above the air distribution head, the baffle is arranged horizontally to block the upper part of the adsorption tank, a plurality of through holes are arranged in the middle position of the baffle, and a movable cover is arranged on the top of the through hole. When the carbon dioxide gas is released into the filtration solution through the air distribution head, the moisture carried away by the rising gas will condense on the baffle and flow back downward, thereby reducing the water vapor content in the carbon dioxide and improving the collection effect, so that the carbon dioxide will be collected upward only when it has a certain pressure. At the same time, it also increases the contact time between the mixed gas and the filtration solution, further reduces the ethanol content, and ensures the filtration effect of the carbon dioxide. The design of multiple air distribution heads can ensure that the carbon dioxide gas is evenly distributed in the filtration solution, increase the distribution area of ​​the mixed gas in the filtration solution, and improve the filtration effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall connection structure of the utility model;

[0012] Figure 2 This is a schematic diagram of the structure of the air distribution device of the utility model;

[0013] Figure 3 This is a schematic structural diagram of the air distribution device of the utility model from another angle;

[0014] Figure 4 This is a schematic diagram of the structure of the air distribution head of the utility model when viewed from above;

[0015] In the figure: 1. fermentation tank; 101. output pipe; 102. collection pipe; 2. adsorption tank; 201. ventilation pipe; 202. air distribution head; 3. water tank; 301. circulation pipe. DETAILED DESCRIPTION

[0016] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0017] See also Figures 1 to 4The embodiment of the utility model is a carbon dioxide explosion-proof device for fermentation production, which mainly includes an output pipe 101 connected to the fermentation tank 1, and a plurality of branch pipes are arranged at the end of the output pipe 101. These branch pipes are respectively connected to the adsorption tank 2 filled with the filtered solution. The adsorption tank 2 is provided with a ventilation pipe 201 connected to the branch pipe. The output end of the ventilation pipe 201 is provided with a gas distribution device, and the gas distribution device includes a plurality of gas distribution heads 202 arranged inside the filtered solution. The branch pipe is firmly and tightly connected to the ventilation pipe 201 through a flange. Such a design can ensure that the carbon dioxide mixed gas will not leak during the transmission process. A collecting pipe 102 is arranged on the top of the adsorption tank 2, and the collecting pipe 102 is connected to the carbon dioxide collecting tank. The filtered solution is water, which mainly absorbs the ethanol contained inside. When the carbon dioxide gas passes through the filtered solution in the adsorption tank 2, the ethanol and water-soluble components therein are filtered out, and the relatively pure carbon dioxide gas enters the carbon dioxide collecting tank through the collecting pipe 102 for collection, thereby ensuring the filtering effect.

[0018] In order to maintain the cleanliness and filtering effect of the filtered solution, a circulation pipe 301 is arranged on the side wall of the adsorption tank 2. The circulation pipe 301 is connected to the water tank 3. The clean water in the water tank 3 can flow into the adsorption tank 2 through the circulation pipe 301 to clean and update the inside of the adsorption tank 2. This circulation method can ensure that the filtered solution always maintains a high-efficiency filtering ability. At the same time, a sampling port is arranged in the water tank 3 to regularly sample the water after adsorption in the water tank 3 to detect the ethanol content, and regularly replace the water in the water tank 3 to ensure a high adsorption effect.

[0019] A baffle for condensing water is arranged above the gas distribution head 202. The baffle is arranged horizontally to block the upper part of the adsorption tank 2. A plurality of through holes are arranged in the middle position of the baffle. A movable cover is arranged on the top of the through hole. When the carbon dioxide gas is released into the filtration solution through the gas distribution head 202, the moisture carried away by the rising gas will condense on the baffle and flow back downward, thereby reducing the water vapor content in the carbon dioxide and improving the collection effect. The movable cover is pushed open when the bottom pressure is relatively high, so that the carbon dioxide will be collected upward only when there is a certain pressure. At the same time, the contact time between the mixed gas and the filtration solution is also increased, thereby further reducing the ethanol content and ensuring the filtration effect of the carbon dioxide.

[0020] The air distribution head 202 is connected to the ventilation pipe 201 through a bent pipe. The air distribution head 202 is cylindrical, and its air outlet is arranged on the bottom. Such a design of multiple air distribution heads 202 can ensure that the carbon dioxide gas is evenly distributed in the filtered solution, increase the distribution area of ​​the mixed gas in the filtered solution, and improve the filtering effect. At the same time, the bottom of the air distribution head 202 is lower than the water inlet of the circulation pipe 301 to prevent the water flow from causing impact and damage to the air distribution head 202 during the circulating cleaning process.

[0021] Working principle: During the fermentation process, carbon dioxide gas enters the branch pipe through the output pipe 101, and then enters the adsorption tank 2 through the ventilation pipe 201. In the adsorption tank 2, the carbon dioxide gas is uniformly released into the filtered solution through the air distribution device. After filtering, the pure carbon dioxide gas enters the carbon dioxide collection tank through the collection pipe 102 for collection. At the same time, the circulation pipe 301 introduces the clean water in the water tank 3 into the adsorption tank 2 to clean and update the filtered solution to maintain its efficient filtering ability. It should be noted that in the description of the present utility model, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and other terms indicating direction or position relationship are based on the direction or position relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0022] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0023] The term "comprise" or any other similar term is intended to cover a non-exclusive inclusion, such that a process, article, or apparatus / device that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, article, or apparatus / device.

[0024] So far, the technical solution of the utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings, but it is easy for those skilled in the art to understand that the protection scope of the utility model is obviously not limited to these specific embodiments. Without departing from the principle of the utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the utility model.

Claims

1. A carbon dioxide explosion-proof device for fermentation production, comprising an output pipe (101) connected to a fermentation tank (1), characterized in that: A plurality of branch pipes are arranged at the end of the output pipe (101), each of the branch pipes being respectively connected to an adsorption tank (2) filled with a filtered solution, a ventilation pipe (201) connected to the branch pipe is arranged inside the adsorption tank (2), and an air distribution device is arranged at the output end of the ventilation pipe (201), the air distribution device comprising a plurality of air distribution heads (202) arranged inside the filtered solution.

2. The carbon dioxide explosion-proof device for fermentation production according to claim 1, characterized in that: The branch pipe is connected to the ventilation pipe (201) via a flange, and a collecting pipe (102) is provided on the top of the adsorption tank (2), and the collecting pipe (102) is connected to a carbon dioxide collection tank.

3. The carbon dioxide explosion-proof device for fermentation production according to claim 1, characterized in that: A circulation pipe (301) is provided on the side wall of the adsorption tank (2), and the circulation pipe (301) is connected to a water tank (3).

4. The carbon dioxide explosion-proof device for fermentation production according to claim 1, characterized in that: A baffle plate for condensing water is arranged above the air distribution head (202), a plurality of through holes are arranged in the middle of the baffle plate, and a movable cover is hinged on the top of the through hole.

5. The carbon dioxide explosion-proof device for fermentation production according to claim 1, characterized in that: The air distribution head (202) is connected to the ventilation pipe (201) through a curved pipe, the air distribution head (202) is cylindrical, and the air outlet of the air distribution head (202) is arranged on the bottom surface.

6. The carbon dioxide explosion-proof device for fermentation production according to claim 3, characterized in that: The bottom of the air distribution head (202) is lower than the water inlet of the circulation pipe (301).

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