Enzyme catalytic equipment for treating yellow water of baijiu

Abstract

The utility model discloses an enzyme catalysis equipment for liquor yellow water treatment belongs to enzyme catalysis technical field. The enzyme catalysis equipment of preceding article includes reation kettle, the reation kettle is divided into first jar body, second jar body and third jar body, the inside of first jar body is equipped with filter assembly, the inside of second jar body is equipped with catalytic component, the inside of third jar body is equipped with activated carbon plate, the inner wall of first jar body and second jar body is equipped with interlayer, the inside of interlayer is equipped with helical temperature -controlled tube, the temperature of temperature -controlled tube inside medium is forty -five degrees. The enzyme catalysis equipment of the utility model, through setting helical temperature -controlled tube cooperation filter assembly, not only can quick maintenance lipase optimum reaction temperature, and can carry out preliminary filtration separation to liquor yellow water, in addition, still has promoted catalytic efficiency and resource utilization rate.

Description

Technical Field

[0001] This utility model belongs to the field of catalytic technology for treating yellow water in baijiu (Chinese liquor), specifically relating to an enzyme catalytic device for treating yellow water in baijiu. Background Technology

[0002] The yellow liquid in Baijiu (Chinese liquor) is an acidic liquid formed at the bottom of the fermentation pit during solid-state fermentation and distillation. It is rich in organic acids (such as lactic acid and acetic acid), alcohols (ethanol and higher alcohols), and functional polysaccharides. In traditional processes, the yellow liquid is difficult to utilize directly due to its high acidity (pH 3.5-4.5), high ethanol content (8%-12%), and complex impurities (such as grain residue, microbial remains, and protein flocculants). It is usually discharged as wastewater or simply reused, resulting in resource waste and environmental pollution. In recent years, studies have shown that the polysaccharide components in the yellow liquid can produce beneficial substances such as short-chain fatty acids through intestinal flora metabolism, which have antioxidant and immunomodulatory potential. At the same time, the free fatty acids in the yellow liquid and ethanol can generate key flavor substances such as ethyl hexanoate and ethyl octanoate under the catalysis of lipase, which significantly improves the aroma complexity of Baijiu. However, natural lipases are easily deactivated in the extreme environment of yellow water, resulting in low catalytic efficiency. Furthermore, traditional immobilization technologies suffer from problems such as low enzyme loading and high mass transfer resistance. Therefore, this invention provides a catalytic treatment device for yellow water from baijiu (Chinese liquor). Utility Model Content

[0003] The purpose of this invention is to provide an enzyme catalytic device for treating yellow water in baijiu (Chinese liquor) to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an enzyme catalytic device for treating yellow water in baijiu (Chinese liquor), comprising a reaction vessel, the reaction vessel being divided into a first tank, a second tank, and a third tank. The first tank is equipped with a filter assembly inside, the second tank is equipped with a catalytic assembly inside, and the third tank is equipped with an activated carbon plate inside. An interlayer is formed in the inner wall of the first and second tanks, and a spiral temperature control tube is provided inside the interlayer. The temperature of the medium inside the temperature control tube is 45 degrees Celsius.

[0005] In a preferred embodiment, the filter assembly includes a multi-stage filter plate bolted inside a first tank. The multi-stage filter plate is divided into three sieve plates, with the diameter of the sieve holes decreasing progressively from top to bottom. A filler material, which is unmodified diatomaceous earth, is filled between every two sieve plates.

[0006] In a preferred embodiment, the first tank is provided with through pipes on both sides, and each through pipe is provided with a pressure valve. The two through pipes are respectively provided with a flushing plate and a discharge plate at one end of the first tank, and the flushing plate and discharge plate are respectively located at both ends of the three sieve plates.

[0007] In a preferred embodiment, the top of the first tank is provided with an inlet pipe, the bottom of the third tank is provided with a discharge pipe, the bottom of the first tank is fixedly connected to the top of the second tank through a guide section, and the bottom of the second tank is fixedly connected to the top of the third tank through a connecting pipe.

[0008] In a preferred embodiment, the catalytic assembly includes a lipase addition tube disposed at the top of the second tank, the other end of which is located inside the second tank. The second tank has a first carrier, a second carrier, and a third carrier arranged sequentially from top to bottom, and the cross-sections of the first carrier and the second carrier are arc-shaped.

[0009] In a preferred embodiment, the lipase addition tube is provided with a primary discharge section, a secondary discharge section and a tertiary discharge section on the outside of one end inside the second tank. The aperture values ​​of the discharge sections decrease sequentially, and the primary discharge section, the secondary discharge section and the tertiary discharge section are respectively located above the first carrier, the second carrier and the third carrier.

[0010] In a preferred embodiment, a conical diversion plate is provided inside the third tank above the activated carbon plate.

[0011] Compared with the prior art, the beneficial effects of this utility model are: This enzyme catalysis device, by setting up a spiral temperature control tube in conjunction with a filtration component, can not only quickly maintain the optimal reaction temperature for lipase, but also perform preliminary filtration and separation of the yellow water from baijiu. This enzyme catalysis device, through the setting of a graded catalytic component, achieves efficient and full contact between the filtered yellow liquor and lipase, significantly improving catalytic efficiency and resource utilization rate. Attached Figure Description

[0012] Figure 1 This is a front view of the structure of this utility model; Figure 2 This is a cross-sectional view of the structure of this utility model; Figure 3 This is a flowchart illustrating the working process of the present invention.

[0013] In the diagram: 1. First tank; 101. Inlet pipe; 102. Flow guide; 2. Second tank; 201. First carrier; 202. Second carrier; 203. Third carrier; 204. Connecting pipe; 3. Third tank; 301. Discharge pipe; 302. Activated carbon plate; 303. Conical flow divider; 4. Temperature control pipe; 5. Pressure valve; 6. Washing plate; 7. Discharge plate; 8. Multi-stage filter plate; 9. Packing material; 10. Lipase addition pipe; 1001. Primary discharge section; 1002. Secondary discharge section; 1003. Tertiary discharge section. Detailed Implementation

[0014] The present invention will be further described below with reference to the embodiments.

[0015] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0016] Please see Figure 1-3 This utility model provides an enzyme catalytic device for treating yellow water in baijiu (Chinese liquor), including a reaction vessel. The reaction vessel is divided into a first tank 1, a second tank 2, and a third tank 3. The first tank 1 has an internal filtration assembly, which includes a multi-stage filter plate 8 bolted to the inside of the first tank 1. The multi-stage filter plate 8 is divided into three sieve plates, with the sieve aperture diameter decreasing progressively from top to bottom. A filler 9, which is unmodified diatomaceous earth, is placed between every two sieve plates. Through-pipelines are provided on both sides of the first tank 1, and pressure valves 5 are installed on the outside of each through-pipeline. A flushing plate 6 and a discharge plate 7 are respectively located at one end of each of the two through-pipelines in the first tank 1. At both ends of the three sieve plates, the yellow water enters the reactor through the input pipe 101 at the top of the first tank 1. It first contacts the upper sieve plate, intercepting large particles of impurities (such as grain residue and bacterial remains). The small particles that are not intercepted enter the middle sieve plate, where they are combined with the unmodified diatomaceous earth filling layer to adsorb colloidal substances such as protein flocculants. The remaining particles pass through the lower sieve plate, where the microporous structure of the diatomaceous earth further intercepts nano-sized particles. After a certain period of time, compressed air (0.5MPa) enters the flushing plate 6 through the through pipe, impacting the impurities in the sieve plates and diatomaceous earth pores. The detached impurities are discharged from the discharge plate 7 with the airflow. The filtered yellow water enters the second tank 2 through the guide section 102 to carry out the enzyme catalytic reaction. The three-stage sieve plate gradually reduces the pore size, which, combined with the adsorption effect of diatomaceous earth, improves the removal rate of suspended solids, which is much higher than that of a single-stage sieve plate. The silanol groups on the surface of unmodified diatomaceous earth adsorb negatively charged impurities through hydrogen bonding, thus delaying sieve plate clogging.

[0017] In this embodiment, a catalytic assembly is provided inside the second tank 2, an inlet pipe 101 is provided at the top of the first tank 1, and an outlet pipe 301 is provided at the bottom of the third tank 3. The bottom of the first tank 1 is fixedly connected to the top of the second tank 2 through a guide part 102, and the bottom of the second tank 2 is fixedly connected to the top of the third tank 3 through a connecting pipe 204. The catalytic assembly includes a lipase addition pipe 10 disposed at the top of the second tank 2, with the other end of the lipase addition pipe 10 located inside the second tank 2. Inside the second tank 2, a first carrier 201, a second carrier 202, and a third carrier 203 are arranged sequentially from top to bottom. The cross-sections of the first carrier 201 and the second carrier 202 are arc-shaped. The outer side of the end of the lipase addition pipe 10 located inside the second tank 2 is provided with a primary outlet 1001 and a secondary outlet 1001. The discharge section 1002 and the tertiary discharge section 1003 have successively decreasing aperture values. The primary discharge section 1001, the secondary discharge section 1002, and the tertiary discharge section 1003 are located above the first carrier 201, the second carrier 202, and the third carrier 203, respectively. The filtered yellow water enters the top of the second tank 2 through the guide section 102. The fluid is evenly dispersed along the arc-shaped surface of the first carrier 201 to avoid local overload. The lipase solution is pumped into the tank through the lipase addition tube 10. The primary discharge section 1001, the secondary discharge section 1002, and the tertiary discharge section 1003 spray enzyme solution onto the surfaces of the first carrier 201, the second carrier 202, and the third carrier 203 in sequence. The first carrier 201 is a lipase with covalently bound surface epoxy groups, which catalyzes the hydrolysis of macromolecular substrates to generate free fatty acids. The second carrier 202 is a carrier doped with nano-iron oxide. The sedimentation position is controlled by an external magnetic field to ensure uniform distribution of the enzyme layer. The lipase further catalyzes the esterification reaction of fatty acids and ethanol. The third carrier 203 is a hydrophobically modified carrier that promotes the "interfacial activation" of the lipase. The lipase specifically synthesizes high-value-added flavor substances. The yellow water after the catalytic reaction (containing the target product) enters the third tank 3 through the connecting tube 204. Unreacted enzyme molecules are fixed on the carrier surface and can be reused. In this embodiment, the interior of the third tank 3 is provided with an activated carbon plate 302, and a conical diversion plate 303 is provided above the activated carbon plate 302 inside the third tank 3. The catalyzed material is guided to the surface of the activated carbon plate 302 through the conical diversion plate 303, thereby achieving uniform filtration.

[0018] In this embodiment, a jacket is formed in the inner wall of the first tank 1 and the second tank 2. A spiral temperature control pipe 4 is provided inside the jacket. The temperature of the medium inside the temperature control pipe 4 is 45 degrees. The spiral heat-conducting oil pipe (45℃±0.5℃) in the temperature control jacket maintains the temperature inside the tank through heat conduction, ensuring that the lipase is in the optimal reaction conditions.

[0019] The working principle and usage process of this utility model are as follows: First, the yellow water enters the reaction vessel through the input pipe 101 at the top of the first tank 1. It first contacts the upper sieve plate, intercepting large particles of impurities (such as grain residue and bacterial remains). Small particles that are not intercepted enter the middle sieve plate, where they are combined with the unmodified diatomaceous earth filling layer to adsorb colloidal substances such as protein flocculants. Residual particles pass through the lower sieve plate, where the microporous structure of the diatomaceous earth further intercepts nano-sized particles. After a certain period of use, compressed air (0.5MPa) enters the flushing plate 6 through the through-pipe, impacting the impurities in the sieve plate and diatomaceous earth pores. The detached impurities are discharged from the discharge plate 7 with the airflow. The filtered yellow water enters the second tank 2 through the guide section 102 to carry out the enzyme catalytic reaction. The spiral heat-conducting oil pipe (45℃±0.5℃) in the temperature control jacket maintains a stable temperature inside the tank through heat conduction, ensuring that the lipase is in the optimal reaction conditions. The filtered yellow water enters the top of the second tank 2 through the guide section 102, and the fluid is evenly dispersed along the arc-shaped surface of the first carrier 201 to avoid local over-dispersion. Lipase solution is pumped into the tank through lipase addition tube 10. The enzyme solution is sprayed sequentially onto the surfaces of the first carrier 201, second carrier 202, and third carrier 203 via primary discharge section 1001, secondary discharge section 1002, and tertiary discharge section 1003. Lipase, covalently bound to epoxy groups on the surface of the first carrier 201, catalyzes the hydrolysis of macromolecular substrates to generate free fatty acids. The second carrier 202, a carrier doped with nano-iron oxide, has its sedimentation position controlled by an external magnetic field to ensure uniform enzyme layer distribution. The lipase further catalyzes the esterification reaction of fatty acids and ethanol. The third carrier 203, a hydrophobically modified carrier, promotes the "interfacial activation" of the lipase, enabling the specific synthesis of high-value-added flavor substances. The resulting yellow water (containing the target product) enters the third tank 3 through connecting tube 204. Unreacted enzyme molecules are fixed on the carrier surface for reuse. The catalyzed water is guided to the surface of activated carbon plate 302 through conical diversion plate 303 for uniform filtration before being discharged through discharge tube 301.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An enzyme catalytic device for treating yellow water from baijiu (Chinese liquor), comprising a reaction vessel, characterized in that: The reactor is divided into a first tank (1), a second tank (2) and a third tank (3). The first tank (1) is equipped with a filter assembly, the second tank (2) is equipped with a catalyst assembly, and the third tank (3) is equipped with an activated carbon plate (302). The inner walls of the first tank (1) and the second tank (2) are provided with a jacket, and the jacket is equipped with a spiral temperature control tube (4). The temperature of the medium inside the temperature control tube (4) is 45 degrees.

2. The enzyme catalysis device according to claim 1, characterized in that: The filter assembly includes a multi-stage filter plate (8) bolted inside the first tank (1). The multi-stage filter plate (8) is divided into three sieve plates. The diameter of the sieve holes in the sieve plates decreases from top to bottom. A filler (9) is filled between every two sieve plates. The filler (9) is unmodified diatomaceous earth.

3. The enzyme catalysis device according to claim 2, characterized in that: The first tank (1) has through pipes on both sides, and each through pipe is equipped with a pressure valve (5). The two through pipes are respectively equipped with a flushing plate (6) and a discharge plate (7) at one end of the first tank (1). The flushing plate (6) and the discharge plate (7) are respectively located at both ends of the three sieve plates.

4. The enzyme catalysis device according to claim 3, characterized in that: The first tank (1) is provided with an inlet pipe (101) at the top, and the third tank (3) is provided with an outlet pipe (301) at the bottom. The bottom of the first tank (1) is fixedly connected to the top of the second tank (2) through a guide part (102), and the bottom of the second tank (2) is fixedly connected to the top of the third tank (3) through a connecting pipe (204).

5. The enzyme catalysis device according to claim 1, characterized in that: The catalytic assembly includes a lipase addition tube (10) disposed on the top of the second tank (2), the other end of which is located inside the second tank (2). The second tank (2) is provided with a first carrier (201), a second carrier (202) and a third carrier (203) from top to bottom. The cross-sections of the first carrier (201) and the second carrier (202) are arc-shaped.

6. The enzyme catalysis device according to claim 5, characterized in that: The lipase addition tube (10) is located on the outside of one end inside the second tank (2) and is provided with a primary discharge section (1001), a secondary discharge section (1002) and a tertiary discharge section (1003). The aperture values ​​of the discharge sections decrease sequentially. The primary discharge section (1001), the secondary discharge section (1002) and the tertiary discharge section (1003) are located above the first carrier (201), the second carrier (202) and the third carrier (203), respectively.

7. The enzyme catalysis device according to claim 1, characterized in that: The third tank (3) has a conical diversion plate (303) located above the activated carbon plate (302).

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