A method of processing a distillers grain

By using disinfection equipment and multiple steaming processes, the problems of uneven disinfection of moldy lees and waste of resources have been solved, achieving complete removal of moldy odor and improvement of wine quality, thereby increasing resource utilization and wine production rate.

CN117653757BActive Publication Date: 2026-06-23JING BRAND MOUTAI TOWN LIQUOR CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
JING BRAND MOUTAI TOWN LIQUOR CO LTD
Filing Date
2023-11-13
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

In existing technologies, slightly moldy mash that is not thoroughly treated can easily contaminate the raw wine, leading to a deterioration in wine quality. Furthermore, the moldy smell is not completely removed, resulting in low resource utilization and uneven disinfection, which leads to resource waste.

Method used

The mold trough is treated with a disinfection device, including a vertical vibrating elevator and a water supply assembly. The mold trough is disinfected evenly through a spiral conveyor and nozzles. Combined with multiple steaming treatments, the musty smell is completely removed and the mold is killed.

Benefits of technology

It improves the uniformity and efficiency of mold and lees disinfection, increases resource utilization, reduces production costs, improves wine quality, and increases wine yield.

✦ Generated by Eureka AI based on patent content.

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    Figure CN117653757B_ABST
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Abstract

The scheme discloses a mildewy dregs treatment method in the technical field of brewing, which comprises the following steps: step one, using hot water above 95 DEG C to disinfect and kill the mildewy dregs with 95 DEG C; step two, putting the disinfected and killed mildewy dregs into a retort to steam for 20-40 min, taking out the steamed mildewy dregs to spread and air, to thresh, and to fold after the mildewy dregs are cooled; step three, putting the folded mildewy dregs into the retort to steam for 20-40 min after 5-8 h, taking out the steamed mildewy dregs to spread and air, to thresh, and to fold after the mildewy dregs are cooled; step four, repeating the operation of step three for 1-3 times to obtain the treated mildewy dregs. Through the mildewy dregs treatment method, the mildewy dregs can be effectively removed, and the mildew can be completely killed.
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Description

Technical Field

[0001] This invention belongs to the field of brewing technology, and specifically relates to a method for treating moldy lees. Background Technology

[0002] The current method for handling moldy mash involves separating severely moldy mash from slightly moldy mash. Severely moldy mash is completely unusable and is simply processed before being piled up and centrally processed at a unified management point. Slightly moldy mash is used as raw material for the final distillation of the liquor. However, untreated slightly moldy mash can easily contaminate the original liquor, causing off-flavors and other problems. Furthermore, the moldy smell in the mash is not completely removed, resulting in a deterioration in the overall quality of the liquor. Summary of the Invention

[0003] The present invention aims to provide a method for treating moldy residue, so as to reduce the adverse effects of moldy residue on the overall quality of wine.

[0004] One method for treating moldy residue in this solution includes the following steps:

[0005] Step 1: Use hot water above 95℃ to disinfect the slightly moldy residue;

[0006] Step 2: Place the disinfected moldy residue into a steamer and steam for 20-40 minutes. Remove the steamed moldy residue, spread it out to cool, and roughen it. After the moldy residue has cooled, collect it.

[0007] Step 3: Place the collected moldy residue for 5-8 hours, then put it into a steamer and steam for 20-40 minutes. Take out the steamed moldy residue, spread it out to cool and roughen it. After the moldy residue has cooled, collect it.

[0008] Step 4: Repeat the operation in Step 3 1 to 3 times to obtain the treated moldy residue.

[0009] The beneficial effects of this method are as follows: By disinfecting the moldy mash with hot water and then steaming it 3-5 times, the musty smell of the mash can be completely removed and the mold can be thoroughly killed. This method allows slightly moldy mash to be treated and then reintroduced into the fermentation pits for alcohol production, greatly increasing the rational utilization rate of resources, reducing production costs, increasing alcohol yield, and improving alcohol quality.

[0010] Furthermore, during the steaming process of the moldy lees, the lid of the still is removed. Removing the lid helps to fully remove the musty smell of the lees and prevents it from accumulating inside the still.

[0011] Furthermore, when steaming the moldy residue, the steaming time is 30 minutes.

[0012] Furthermore, in the process of eliminating mold, the mold is mainly loaded into a container with an opening at the top, and water holes are evenly distributed on the wall of the container to allow hot water to flow out normally after the mold has been eliminated. Because the hot water mainly acts on the mold at the top, the elimination effect on the mold at the bottom and middle is poor, resulting in uneven elimination of the mold. To achieve complete elimination of the mold, more hot water is needed, which leads to waste of resources.

[0013] To further improve the efficiency of disinfection of moldy lees and increase the utilization rate of hot water, this application employs a disinfection device to treat the moldy lees. The disinfection device includes a vertical vibrating elevator and a water supply component fixed to the top of the vertical vibrating elevator. The vertical vibrating elevator is equipped with a feeding tray and a spiral conveying trough. Water outlet holes are evenly distributed at the bottom of the spiral conveying trough, and the feeding tray is connected to a water outlet pipe. The water supply component includes a water storage tray and multiple nozzles connected to the bottom of the water storage tray. The nozzles are evenly distributed in a ring, and the multiple nozzles are located directly above the top of the spiral conveying trough. When using the disinfection device to disinfect the moldy lees, the moldy lees are placed in the feeding tray, and the vertical vibrating elevator conveys the moldy lees to the discharge port of the vertical vibrating elevator, and then enters the still through the discharge port. During this process, the water storage tray is connected to external hot water, and the hot water disinfects the lees in the spiral conveying trough through the nozzles.

[0014] The beneficial effects of this solution are as follows: A disinfection device is used to disinfect the moldy residue. During the disinfection process, hot water first contacts the top layer of moldy residue. After disinfecting the top layer, the hot water passes through the outlet at the bottom of the spiral conveyor trough, ensuring that the moldy residue entering the still is always disinfected by the highest temperature hot water before entering the next layer of the spiral conveyor trough. This process effectively disinfects the moldy residue throughout the entire spiral conveyor trough, with the disinfection temperature increasing as you go up. This improves disinfection efficiency while ensuring that all moldy residue receives maximum disinfection, avoiding the problem of insufficient heating and sterilization effect in the middle and bottom layers of moldy residue when using a carrying frame in existing technologies.

[0015] Furthermore, a guide plate coaxial with the water storage pan is fixedly connected inside the water storage pan, and the guide plate is connected to a water inlet pipe. The nozzle is connected between the guide plate and the water storage pan. Due to the guide plate, hot water first enters the guide plate. Since the water storage pan and the guide plate are coaxial, the hot water first fills the guide plate before entering the water storage pan, thus ensuring a consistent water output from each nozzle.

[0016] Furthermore, a protective cover is detachably attached to the top of the water storage pan. This protective cover prevents heat loss.

[0017] Furthermore, a protective sleeve is fitted onto the vertical vibrating elevator, and the spiral conveying trough is located inside the protective sleeve. The protective sleeve helps reduce heat exchange between the hot water and the outside air. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a disinfection device according to Embodiment 1 of the present invention. Detailed Implementation

[0019] The following detailed description illustrates the specific implementation method:

[0020] The reference numerals in the accompanying drawings include: 1. Vertical vibrating elevator, 11. Feed tray, 12. Spiral conveyor trough, 13. Discharge port, 2. Water outlet pipe, 3. Protective cover, 4. Water storage tray, 5. Guide plate, 6. Water inlet pipe, and 7. Nozzle.

[0021] Example 1 is basically as shown in the appendix. Figure 1 The image shows a disinfection device comprising a vertical vibrating elevator and a water supply assembly fixed to the top of the vertical vibrating elevator. The vertical vibrating elevator is equipped with a feeding plate and a spiral conveying trough. Water outlet holes are evenly distributed at the bottom of the spiral conveying trough, and the feeding plate is connected to a water outlet pipe. The water supply assembly includes a guide plate, a water storage plate, and multiple nozzles connected to the bottom of the water storage plate. The nozzles are evenly distributed in a ring, and the multiple nozzles are located directly above the top of the spiral conveying trough. The guide plate is fixedly connected to the water storage plate, and the two are coaxial. A protective cover is fastened to the water storage plate, covering both the water storage plate and the guide plate to reduce heat loss from the hot water. A water inlet pipe is connected to the protective cover, with one end of the water inlet pipe inside the protective cover located inside the guide plate. The nozzles are connected between the guide plate and the water storage plate.

[0022] The only difference between Example 2 and Example 1 is that a protective cylinder is fitted on the vertical vibrating elevator, and the spiral conveying groove is located inside the protective cylinder.

[0023] The method for treating moldy residue using the disinfection device of Example 1 includes the following steps:

[0024] Step 1: Place the moldy lees into the feeding tray. The vertical vibrating elevator will transport the moldy lees to the discharge port of the vertical vibrating elevator. The lees will then enter the still through the discharge port. During this process, the water inlet pipe is connected to external hot water. The hot water temperature is above 95℃. After the hot water enters the guide plate, it will flow into the water storage tray through the opening of the guide plate. Then, the spray nozzle will disinfect the lees in the spiral conveying trough.

[0025] Step 2: After disinfection, the moldy lees are fed into the still via a vertical vibrating elevator. They are steamed in the still for 20-40 minutes. The steamed moldy lees are then taken out, spread out to cool, and roughened. After the moldy lees have cooled, they are collected.

[0026] Step 3: Place the collected moldy residue for 5-8 hours, then put it into a steamer and steam for 20-40 minutes. Take out the steamed moldy residue, spread it out to cool and roughen it. After the moldy residue has cooled, collect it.

[0027] Step 4: Repeat the operation in Step 3 to obtain the treated moldy residue.

[0028] Using a disinfection device to disinfect the moldy residue can significantly improve the efficiency and uniformity of disinfection. After disinfection, the residue undergoes three steaming processes to effectively kill the mold and remove the musty odor.

[0029] The above descriptions are merely embodiments of the present invention, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A method for treating moldy residue, characterized in that: Includes the following steps: Step 1: Disinfect the moldy lees using a disinfection device. The disinfection device includes a vertical vibrating elevator and a water supply assembly fixed to the top of the vertical vibrating elevator. The vertical vibrating elevator is equipped with a feeding tray and a spiral conveying trough. Water outlets are evenly distributed at the bottom of the spiral conveying trough, and the feeding tray is connected to a water outlet pipe. The water supply assembly includes a water storage tray and multiple nozzles connected to the bottom of the water storage tray. The nozzles are evenly distributed in a ring, and the multiple nozzles are located directly above the top of the spiral conveying trough. When using the disinfection device to disinfect the moldy lees, the moldy lees are placed in the feeding tray. The vertical vibrating elevator conveys the moldy lees to the discharge port of the vertical vibrating elevator, and then enters the still through the discharge port. During this process, the water storage tray is connected to external hot water at a temperature above 95°C. The hot water disinfects the slightly moldy lees in the spiral conveying trough through the nozzles. Step 2: Place the disinfected moldy residue into a steamer and steam for 20-40 minutes. Remove the steamed moldy residue, spread it out to cool, and roughen it. After the moldy residue has cooled, collect it. Step 3: Place the collected moldy residue for 5-8 hours, then put it into a steamer and steam for 20-40 minutes. Take out the steamed moldy residue, spread it out to cool and roughen it. After the moldy residue has cooled, collect it. Step 4: Repeat the operation in Step 3 1 to 3 times to obtain the treated moldy residue.

2. The method for treating moldy residue according to claim 1, characterized in that: During the steaming process of the moldy lees, the lid of the still is removed.

3. The method for treating moldy residue according to claim 2, characterized in that: When steaming the moldy residue, the steaming time is 30 minutes.

4. A method for treating moldy residue according to claims 1 to 3, characterized in that: A guide plate coaxial with the water storage pan is fixedly connected inside the water storage pan. The guide plate is connected to a water inlet pipe. The nozzle is connected between the guide plate and the water storage pan.

5. The method for treating moldy residue according to claim 4, characterized in that: The top of the water storage tray is detachably connected to a protective cover.

6. The method for treating moldy residue according to claim 5, characterized in that: The vertical vibrating elevator is fitted with a protective cylinder, and the spiral conveying trough is located inside the protective cylinder.