A device for uniform and rapid cooling of distiller's grains

By using a device for even and rapid cooling of distiller's grains, which combines natural wind and a cold air blower, the problems of wet clumps and high energy consumption caused by direct cold air blowing during the distiller's grains cooling process are solved, and the uniform cooling of distiller's grains and the improvement of fermentation effect are achieved.

CN224548368UActive Publication Date: 2026-07-24QIANJIANG FANGGU LIQUOR CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QIANJIANG FANGGU LIQUOR CO LTD
Filing Date
2025-08-22
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

In the process of brewing baijiu, the cold air blowing directly on the surface of the lees during the cooling process in the existing technology causes the moisture to evaporate too quickly, forming wet clumps, which affects uniform fermentation and consumes a lot of energy.

Method used

A device for evenly spreading and rapidly cooling distiller's grains is adopted, which combines natural wind and a cooling fan. A mesh belt conveyor mechanism is used to achieve stepped cooling, and a dispersing and screening mechanism is used to prevent clumping and improve heat dissipation.

Benefits of technology

It achieves uniform cooling of the lees, improves fermentation effect, reduces energy consumption, avoids lees crusting, and saves the running time of the air cooler.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of liquor brewing discloses a kind of uniform and fast cooling device of distiller's grains spreading, including shell, the web belt type conveying mechanism being installed in the shell, fan and air cooler being installed on shell and being communicated with its inner bottom wall through-hole.This utility model has the following advantages and effects: fan first outside natural wind is sent to the preliminary cooling of distiller's grains in shell interior, then web belt type conveying mechanism continues to send distiller's grains to high position, cold air is sent into shell interior by air cooler at this time, and distiller's grains are further cooled, and the realization of ladder type cooling is realized to distiller's grains, fan first precooling is carried out to distiller's grains, temperature gradient is moderated, and crust is avoided, improve distiller's grains fermentation effect, subsequent cold air can be more evenly penetrated inside, and fan first uses natural wind (ambient temperature) to take away distiller's grains surface sensible heat, air cooler operating time is shortened, and subsequent cold air load is reduced, and comprehensive energy consumption is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of liquor brewing technology, and in particular to a device for evenly spreading and rapidly cooling distiller's grains. Background Technology

[0002] In the process of brewing baijiu (Chinese liquor), spreading and cooling the mash are necessary steps to cool the mash after high-temperature cooking to a certain temperature.

[0003] Currently, during the cooling process of baijiu mash, cold air is used directly to cool the mash. Strong cold air accelerates the evaporation of moisture on the surface of the mash, resulting in an increased humidity gradient between the inside and outside of the mash. The surface of the mash dries and forms a crust quickly, which hinders the dissipation of internal heat. The internal moisture may form high-temperature wet clumps due to the obstruction of evaporation, affecting uniform fermentation. In addition, the direct blowing of cold air requires a continuous low-temperature wind speed, which consumes a lot of energy. Therefore, we propose a device for uniform and rapid cooling of baijiu mash. Utility Model Content

[0004] The purpose of this invention is to provide a device for evenly spreading and rapidly cooling distiller's grains, which utilizes natural wind to achieve stepped cooling, thereby improving the fermentation effect of the distiller's grains and saving energy.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a device for uniformly cooling and rapidly distributing distiller's grains, comprising a shell, a mesh belt conveyor installed inside the shell, a fan and a cooling fan installed on the shell and connected to a through hole in its bottom wall, an exhaust fan installed on the shell and connected to a through hole in the top wall of the shell, a discharge hopper connected to a through hole in the bottom wall of the shell, and a feed hopper connected to a through hole in the top wall of the shell. The feed hopper is composed of a dispersing hopper and a sieving hopper that are interconnected vertically. Both the dispersing hopper and the sieving hopper are pyramidal in shape, wider at the top and narrower at the bottom. The lower opening of the dispersing hopper is smaller than the upper opening of the sieving hopper. The dispersing hopper is provided with a dispersing mechanism, and the sieving hopper is provided with a sieving mechanism. The dispersing mechanism is provided with a rotating pressure rod for an intermittently pressing sieving mechanism.

[0006] By adopting the above technical solution, the lees enter the shell through the feed hopper and are conveyed by the mesh belt conveyor. The blower first sends external natural air into the shell to initially cool the lees. Then, the mesh belt conveyor continues to transport the lees to a higher position. At this time, the air cooler sends cold air into the shell to further cool the lees, achieving a stepped cooling effect. When the blower and air cooler are blowing air, the exhaust fan can remove heat from the shell, accelerating the heat outflow. The blower pre-cools the lees, easing the temperature gradient, preventing crust formation, and improving the fermentation effect. The subsequent cold air can penetrate the interior more evenly. At the same time, the blower first uses the ambient temperature of the natural wind to remove the sensible heat on the surface of the lees, shortening the air cooler's operating time, reducing the subsequent cold air load, and lowering the overall energy consumption.

[0007] By adopting the above technical solution, when the lees enter the shell from the feed hopper, they are first dispersed by the dispersing mechanism in the dispersing hopper to avoid lees clumping and improve the heat dissipation effect of the lees. At the same time, in order to avoid uneven distribution of the dispersed lees when they fall under gravity, the screening mechanism in the screening hopper is used to make the lees fall more evenly onto the mesh belt conveyor, which makes it easier for the air blown by the fan and the cooler to penetrate the lees and further improve the cooling effect of the lees.

[0008] A further feature of this invention is that the dispersing mechanism includes a rotating shaft that passes through the left and right sides of the inner wall of the dispersing bucket and is rotatably connected to the inner wall of the dispersing bucket, a dispersing rod mounted on the rotating shaft, a gear one mounted on the outside of the rotating shaft, a drive motor mounted on the dispersing bucket, and a gear two connected to the output shaft of the drive motor, wherein the gear two meshes with the gear one.

[0009] By adopting the above technical solution, the drive motor starts and drives gear two to rotate. Gear two meshes with gear one, causing gear one to drive the rotating shaft to rotate, which in turn causes the dispersing rod to rotate, breaking up the lees that have entered the dispersing hopper, preventing the lees from clumping together and improving the heat dissipation effect of the lees.

[0010] A further feature of this invention is that the screening mechanism includes a base plate installed on the screening hopper, a screening plate that penetrates the left and right sides of the inner wall of the screening hopper and can move up and down inside it, a support spring connecting the base plate and the screening plate, and a baffle and a pad installed on the screening plate.

[0011] The present invention is further configured such that: there are two pads, located on the left and right sides of the sieving hopper respectively; there are two rotating pressure rods, located on the left and right sides of the dispersing hopper respectively; when the rotating shaft rotates, the rotating pressure rods can intermittently squeeze the pads.

[0012] By adopting the above technical solution, when the rotating shaft rotates, it drives the two rotating pressure rods on the rotating shaft to intermittently squeeze the pads. The connecting spring is then compressed or reset, causing the screening plate to shake up and down. This allows the dispersed lees to be distributed more evenly when they fall under gravity, making it easier for the air blown by the fan and the cooler to penetrate the lees and further improve the cooling effect of the lees.

[0013] A further feature of this invention is that the enclosure is a trumpet-shaped enclosure with its upper edge sloping outwards, and the lateral dimension of the upper edge of the enclosure is greater than the lateral dimension of the lower opening of the scattering bucket.

[0014] By adopting the above technical solution, the broken-down lees can be guided so that they can fall onto the screening plate. At the same time, when the lees are shaken up and down for screening, the lees can be prevented from moving outward and getting stuck at the connection between the screening plate and the screening bucket.

[0015] A further feature of this invention is that the mesh belt conveyor mechanism includes two or more conveying rollers rotatably connected inside the housing, a stainless steel mesh belt that drives the conveying rollers, and a conveying motor mounted on the housing to drive the conveying rollers to rotate.

[0016] By adopting the above technical solution, when the conveyor motor starts and drives one of the conveyor rollers to rotate, the stainless steel mesh belt drives the other conveyor roller to rotate, thereby causing the entire stainless steel mesh belt to rotate and convey the lees that have entered the shell.

[0017] A further feature of this invention is that the housing is inclined, the feed hopper is located on the top wall at the lower end of the housing, the discharge hopper is located on the bottom wall at the upper end of the housing, the fan is located on the bottom wall of the housing near the feed hopper, and the cooling fan is located on the bottom wall of the housing near the discharge hopper.

[0018] By adopting the above technical solution, the blower first sends external natural air into the shell to initially cool the lees. Then, the mesh belt conveyor continues to transport the lees to a higher position. At this time, the air cooler sends cold air into the shell to further cool the lees, achieving a stepped cooling effect. The blower pre-cools the lees, easing the temperature gradient and preventing crust formation. Subsequent cold air can penetrate the interior more evenly, improving the fermentation effect of the lees. At the same time, the blower first uses natural air (ambient temperature) to remove the sensible heat from the surface of the lees, shortening the air cooler's operating time, reducing the subsequent cold air load, and lowering overall energy consumption.

[0019] A further feature of this invention is that the housing is provided with multiple manhole doors.

[0020] By adopting the above technical solution, it is convenient to open the manhole door to inspect the inside of the housing.

[0021] The beneficial effects of this utility model are: 1. The blower first sends external natural air into the shell to initially cool the lees. Then, the mesh belt conveyor continues to transport the lees to a higher position. At this time, the air cooler sends cold air into the shell to further cool the lees, achieving a stepped cooling effect. When the blower and air cooler are blowing air, the exhaust fan can remove the heat from inside the shell, accelerating the heat outflow. The blower pre-cools the lees, easing the temperature gradient, preventing crust formation, and improving the fermentation effect. The subsequent cold air can penetrate the interior more evenly. At the same time, the blower first uses natural air (ambient temperature) to remove the sensible heat from the surface of the lees, shortening the air cooler's operating time, reducing the subsequent cold air load, and lowering the overall energy consumption.

[0022] 2. When the lees enter the shell from the feed hopper, they are first dispersed by the dispersing mechanism in the dispersing hopper to prevent the lees from clumping and improve the heat dissipation effect of the lees. At the same time, in order to avoid uneven distribution of the dispersed lees when they fall under gravity, the screening mechanism in the sieving hopper is used to make the lees fall more evenly onto the mesh belt conveyor, so that the air blown by the fan and the air cooler can penetrate the lees and further improve the cooling effect of the lees. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic cross-sectional view of the present invention; Figure 3 This is a schematic diagram of the dispersing mechanism of this utility model.

[0025] In the diagram: 1. Shell; 2. Fan; 3. Mesh belt conveyor mechanism; 31. Conveyor roller; 32. Stainless steel mesh belt; 33. Conveyor motor; 4. Air cooler; 5. Exhaust fan; 6. Discharge hopper; 7. Feed hopper; 71. Dispersing hopper; 72. Screening hopper; 8. Dispersing mechanism; 81. Rotating shaft; 82. Spreading rod; 83. Gear 1; 84. Drive motor; 85. Gear 2; 9. Screening mechanism; 91. Base plate; 92. Screening plate; 93. Support spring; 94. Pad; 95. Enclosure; 10. Rotating pressure rod; 11. Manhole. Detailed Implementation

[0026] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0027] Please see Figure 1-3This utility model provides a device for evenly cooling and rapidly cooling distiller's grains, including a housing 1, a mesh belt conveyor 3 installed inside the housing 1, a fan 2 and a cooling fan 4 installed on the housing 1 and connected to its bottom wall through hole, an exhaust fan 5 installed on the housing 1 and connected to its top wall through hole, a discharge hopper 6 connected to the bottom wall through hole of the housing 1, and a feed hopper 7 connected to the top wall through hole of the housing 1. The feed hopper 7 is composed of a dispersing hopper 71 and a sieving hopper 72 that are interconnected vertically. Both the dispersing hopper 71 and the sieving hopper 72 are pyramidal in shape, wider at the top and narrower at the bottom. The lower opening of the dispersing hopper 71 is smaller than the upper opening of the sieving hopper 72. The dispersing hopper 71 is provided with a dispersing mechanism 8, and the sieving hopper 72 is provided with a sieving mechanism 9. The dispersing mechanism 8 is provided with a rotating pressure rod 10 for the intermittently pressing sieving mechanism 9.

[0028] The lees enter the shell 1 through the feed hopper 7 and are conveyed by the mesh belt conveyor 3. The blower 2 first sends the external natural air into the shell 1 to initially cool the lees. Then, the mesh belt conveyor 3 continues to convey the lees to a higher position. At this time, the air cooler 4 sends cold air into the shell 1 to further cool the lees, achieving a stepped cooling effect. When the blower 2 and the air cooler 4 are blowing air, the exhaust fan 5 can remove the heat from the inside of the shell 1, accelerating the heat outflow. The blower 2 pre-cools the lees, easing the temperature gradient, preventing crust formation, and improving the fermentation effect of the lees. The subsequent cold air can penetrate the interior more evenly. At the same time, the blower 2 first uses the natural air (ambient temperature) to remove the sensible heat on the surface of the lees. The running time of the air cooler 4 is shortened, reducing the subsequent cold air load and lowering the overall energy consumption.

[0029] When the lees enter the housing 1 from the feed hopper 7, they are first dispersed by the dispersing mechanism 8 through the dispersing hopper 71 to prevent the lees from clumping and improve the heat dissipation effect of the lees. At the same time, in order to avoid uneven distribution of the dispersed lees when they fall under gravity, the screening mechanism 9 in the screening hopper 72 is used to make the lees fall more evenly onto the mesh belt conveyor 3, so that the air blown by the fan 2 and the air cooler 4 can penetrate the lees and further improve the cooling effect of the lees.

[0030] Specifically, the dispersing mechanism 8 includes a rotating shaft 81 that passes through the left and right sides of the inner wall of the dispersing hopper 71 and is rotatably connected to the inner wall of the dispersing hopper 71, a dispersing rod 82 mounted on the rotating shaft 81, a gear 83 mounted on the outside of the rotating shaft 81, a drive motor 84 mounted on the dispersing hopper 71, and a gear 85 connected to the output shaft of the drive motor 84. The gear 85 meshes with the gear 83. When the drive motor 84 starts, it drives the gear 85 to rotate. The gear 85 meshes with the gear 83, causing the gear 83 to drive the rotating shaft 81 to rotate, which in turn causes the dispersing rod 82 to rotate, thus dispersing the lees that have entered the dispersing hopper 71, preventing the lees from clumping together and improving the heat dissipation effect of the lees.

[0031] Specifically, the screening mechanism 9 includes a base plate 91 mounted on the screening hopper 72, a screening plate 92 penetrating the left and right sides of the inner wall of the screening hopper 72 and movable up and down inside it, a support spring 93 connecting the base plate 91 and the screening plate 92, and a retaining wall 95 and a pad 94 mounted on the screening plate 92. There are two pads 95 and 94, located on the left and right sides of the sieve hopper 72 respectively; there are two rotating pressure rods 10, located on the left and right sides of the dispersing hopper 71 respectively; when the rotating shaft 81 rotates, the rotating pressure rods 10 can intermittently squeeze the pads 94. When the rotating shaft 81 rotates, it drives the two rotating pressure rods 10 on the rotating shaft 81 to intermittently squeeze the pads 94. The connecting spring 93 is compressed or reset accordingly, causing the sieve plate 92 to shake up and down, so that the dispersed lees can be more evenly distributed when they fall under gravity, making it easier for the air blown by the fan 2 and the cold air fan 4 to penetrate the lees and further improve the cooling effect of the lees.

[0032] Specifically, the enclosure 95 is a trumpet-shaped enclosure with its upper edge sloping outwards. The lateral dimension of the upper edge of the enclosure 95 is larger than the lateral dimension of the lower opening of the dispersing hopper 71. This can guide the dispersed lees as they fall, allowing them to fall into the sieving holes 94 on the sieving plate 92. At the same time, when the lees are shaken up and down for sieving, it can prevent the lees from moving outwards and getting stuck at the connection between the sieving plate 92 and the sieving hopper 72.

[0033] Specifically, the outer side of the enclosure 95 can also be connected to a rubber strip (not shown in the figure) that connects to the inner wall of the sieve hopper 72, sealing the outer side of the enclosure 95 with the inner wall of the sieve hopper 72, thereby reducing the possibility of the lees falling and moving outward during sieving, and preventing the lees from moving outward and getting stuck at the connection between the sieve plate 92 and the sieve hopper 72.

[0034] Specifically, the mesh belt conveyor mechanism 3 includes two or more conveying rollers 31 rotatably connected inside the housing 1, a stainless steel mesh belt 32 driving the conveying rollers 31, and a conveying motor 33 mounted on the housing 1 to drive the conveying rollers 31 to rotate. When the conveying motor 33 starts and drives one of the conveying rollers 31 to rotate, the stainless steel mesh belt 32 drives the other conveying roller 31 to rotate, thereby causing the entire stainless steel mesh belt 32 to rotate and convey the lees that enter the housing 1.

[0035] Specifically, the shell 1 is inclined, the feed hopper 7 is located on the top wall at the lower end of the shell 1, the discharge hopper 6 is located on the bottom wall at the upper end of the shell 1, the fan 2 is located on the bottom wall of the shell 1 near the feed hopper 7, and the cooler 4 is located on the bottom wall of the shell 1 near the discharge hopper 6. This allows the fan 2 to first send external natural air into the shell 1 to pre-cool the lees. Then, the mesh belt conveyor 3 continues to transport the lees to a higher position. At this time, the cooler 4 sends cold air into the shell 1 to further cool the lees, achieving a stepped cooling effect. The fan 2 pre-cools the lees first, easing the temperature gradient and preventing crust formation. The subsequent cold air can penetrate the interior more evenly, improving the fermentation effect of the lees. At the same time, the fan 2 first uses natural air (ambient temperature) to remove the sensible heat from the surface of the lees, shortening the running time of the cooler 4, reducing the subsequent cold air load, and lowering the overall energy consumption.

[0036] Specifically, the housing 1 is provided with multiple manhole doors 11 to facilitate the opening of the manhole doors 11 for inspection of the interior of the housing 1.

[0037] In this application, during use, the material is first dispersed by the dispersing bucket 71 in the feed hopper 7 and then falls into the screening bucket 72. After being screened by the screening mechanism 9, it falls evenly onto the stainless steel mesh belt 32. When the conveying motor 33 starts and drives one of the conveying rollers 31 to rotate, the stainless steel mesh belt 32 drives the other conveying roller 31 to rotate, thereby causing the entire stainless steel mesh belt 32 to rotate. The lees entering the shell 1 are conveyed from right to left. During the conveying process, the fan 2 on the bottom right side of the shell 1 first blows natural air (ambient temperature) into the shell 1 to initially cool the lees. Then, when it continues to be conveyed to the left and reaches the top of the cooling fan 4, the cooling fan 4 blows cold air into the lees to further cool them. When the fan 2 and the cooling fan 4 are blowing air, the exhaust fan 5 works in conjunction with them to remove the heat inside the shell 1 more quickly.

Claims

1. A device for evenly spreading and rapidly cooling distiller's grains, comprising a housing (1), a mesh belt conveyor (3) installed inside the housing (1), a fan (2) and a cool air fan (4) installed on the housing (1) and communicating with a through hole in its bottom wall, an exhaust fan (5) installed on the housing (1) and communicating with a through hole in the top wall of the housing (1), a discharge hopper (6) communicating with a through hole in the bottom wall of the housing (1), and a feed hopper (7) communicating with a through hole in the top wall of the housing (1), characterized in that, The feed hopper (7) consists of a dispersing hopper (71) and a sieving hopper (72) that are connected vertically. Both the dispersing hopper (71) and the sieving hopper (72) are pyramidal shapes that are wider at the top and narrower at the bottom. The lower opening of the dispersing hopper (71) is smaller than the upper opening of the sieving hopper (72). The dispersing hopper (71) is provided with a dispersing mechanism (8), and the sieving hopper (72) is provided with a sieving mechanism (9). The dispersing mechanism (8) is provided with a rotating pressure rod (10) of the intermittent extrusion sieving mechanism (9).

2. The device for evenly spreading and rapidly cooling distiller's grains according to claim 1, characterized in that: The dispersing mechanism (8) includes a rotating shaft (81) that passes through the left and right sides of the inner wall of the dispersing bucket (71) and is rotatably connected to the inner wall of the dispersing bucket (71), a dispersing rod (82) installed on the rotating shaft (81), a gear one (83) installed on the outside of the rotating shaft (81), a drive motor (84) installed on the dispersing bucket (71), and a gear two (85) connected to the output shaft of the drive motor (84), the gear two (85) meshing with the gear one (83).

3. The device for evenly spreading and rapidly cooling distiller's grains according to claim 1, characterized in that: The screening mechanism (9) includes a base plate (91) installed on the screening bucket (72), a screening plate (92) that runs through the left and right sides of the inner wall of the screening bucket (72) and can move up and down inside it, a support spring (93) connecting the base plate (91) and the screening plate (92), and a barrier (95) and a pad (94) installed on the screening plate (92).

4. The device for evenly spreading and rapidly cooling distiller's grains according to claim 3, characterized in that: The enclosure (95) is a trumpet-shaped enclosure with the upper edge sloping outwards. The lateral dimension of the upper edge of the enclosure (95) is greater than the lateral dimension of the lower opening of the scattering bucket (71).

5. The device for evenly spreading and rapidly cooling distiller's grains according to claim 3, characterized in that: There are two pads (94), located on the left and right sides of the sieve hopper (72); there are two rotating pressure rods (10), located on the left and right sides of the dispersing hopper (71); when the rotating shaft (81) rotates, the rotating pressure rods (10) can intermittently squeeze the pads (94).

6. The device for uniformly spreading and rapidly cooling distiller's grains according to claim 1, characterized in that: The mesh belt conveyor (3) includes two or more conveying rollers (31) rotatably connected inside the housing (1), a stainless steel mesh belt (32) drivingly connected to the conveying rollers (31), and a conveying motor (33) installed on the housing (1) to drive the conveying rollers (31) to rotate.

7. The device for evenly spreading and rapidly cooling distiller's grains according to claim 1, characterized in that: The shell (1) is inclined, the feed hopper (7) is located on the top wall at the lower end of the shell (1), the discharge hopper (6) is located on the bottom wall at the upper end of the shell (1), the fan (2) is located on the bottom wall of the shell (1) near the feed hopper (7), and the air cooler (4) is located on the bottom wall of the shell (1) near the discharge hopper (6).

8. The device for evenly spreading and rapidly cooling distiller's grains according to claim 1, characterized in that: The shell (1) also has multiple manhole doors (11).