A ripening device with stirring for esterification
By designing a composite stirring system and a magnetic plate to fix lipase, the problems of uneven stirring and low lipase utilization in baijiu aging devices were solved. This achieved uniform stirring of baijiu and repeated use of lipase, improving the efficiency of esterification reaction and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI WEILAN BIOTECHNOLOGY CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-05-29
AI Technical Summary
Existing baijiu aging devices suffer from uneven stirring and low lipase utilization, leading to increased costs and decreased liquor quality.
A composite stirring system is adopted, including a motor-driven sun gear and planetary gear structure, combined with a magnetic sheet to fix lipase, forming multi-directional shear force, and using macroporous adsorption resin to fix lipase, so as to achieve uniform stirring and reuse.
This process achieves thorough mixing of the liquor, improves the efficiency of the esterification reaction, reduces the loss rate of lipase, and lowers the cost of ripening.
Smart Images
Figure CN224299193U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of liquor ripening technology, and in particular to a stirring ripening device for esterification. Background Technology
[0002] During the esterification process of baijiu, lipase catalyzes the reaction between free organic acids in the mash and ethanol to produce fatty acid esters, which makes the aroma of baijiu more intense and the taste more mellow. This effectively shortens the aging time of baijiu, improves production efficiency, and enhances the quality and flavor of baijiu.
[0003] The utility model patent CN220485658U describes a baijiu (Chinese liquor) ripening device. It employs a movable disc to push a movable rod to extend and retract within a fixed tube, changing the position of the stirring rod during this movement. This solves the problem of some existing baijiu ripening devices failing to achieve layer-by-layer mixing of the liquid inside the tank. However, the aforementioned technical solution has the following problems in actual operation:
[0004] 1. Although the baijiu aging device can mix the liquid inside the tank layer by layer, the rotation of the crossbar and stirring components driven by the power mechanism means that the stirring plate can only follow the circular motion of the crossbar and cannot rotate on its own. The single motion trajectory, limited to a spiral circular motion, causes the liquid to rotate coaxially with the stirring plate without mixing, resulting in uneven mixing. 2. The method of using baijiu aging accelerators to spray into the baijiu under pressure to catalyze esterification is problematic. The aging accelerators flow with the baijiu, making recycling inconvenient. Furthermore, adding too much aging accelerator will reduce the quality of the baijiu. The spraying method requires strict control of the amount added, increasing the cost of baijiu aging. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a stirring and ripening device for esterification.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] An esterification stirring and ripening apparatus includes a reaction vessel; the stirring and ripening apparatus further includes:
[0008] A stirring box, which is detachably mounted on the top of the reactor;
[0009] A stirring mechanism, which is mounted on the stirring box; and
[0010] A fixing mechanism is installed inside the reactor and connected to a stirring mechanism; wherein the fixing mechanism includes a connecting box, a reaction box, magnet I and magnet II; the reaction box is filled with macroporous adsorption resin, on which lipase is adsorbed and fixed.
[0011] As a further improvement to the above solution, the stirring mechanism includes a motor fixed at the top of the stirring box, a gear ring fixedly installed on the inner wall of the stirring box, a sun gear fixedly installed at the output end of the motor, a planetary carrier located below the sun gear and rotatably connected to the output end of the motor, three stirring rods vertically rotatably connected to the planetary carrier, planetary gears fixedly sleeved on the corresponding stirring rods and meshing with the sun gear, and a baffle.
[0012] As a further improvement to the above scheme, three stirring rods are arranged around the sun gear, and the planetary gears and the ring gear mesh with each other.
[0013] As a further improvement to the above solution, the baffle is located below the planetary carrier, and the stirring rod is arranged vertically through the baffle.
[0014] As a further improvement to the above solution, the end of the stirring rod facing away from the motor output end is provided with stirring blades, and the connecting box is fixedly connected to the stirring blades of the stirring rod.
[0015] As a further improvement to the above solution, the magnet II is embedded in the connecting box, and the magnet I is fixedly installed on the reaction box.
[0016] As a further improvement to the above scheme, when the reaction box is placed in the connecting box, magnet I and magnet II are magnetically attracted to each other.
[0017] As a further improvement to the above solution, the connecting box and the reaction box are provided with a number of holes evenly distributed on them.
[0018] As a further improvement to the above solution, the stirring and ripening device also includes a drain pipe fixedly connected to the drain port of the reactor, a valve installed on the drain pipe and located below the reactor, and a bracket fixedly installed at the bottom of the reactor.
[0019] As a further improvement to the above solution, the top of the reactor is an open structure, and an inlet pipe is fixedly connected to the liquid inlet of the reactor. The angle between the inlet pipe and the reactor is 45º, and a pipe cap is provided at the liquid inlet end of the inlet pipe.
[0020] Compared with the prior art, the beneficial effects of this utility model are: it constructs a composite stirring system that can generate multi-directional shear force, break the laminar flow state of the liquid, and form a strong and uniform flow field, so that the liquor is fully stirred and mixed, improving the aging effect of the liquor. In addition, it has the function of adsorbing and fixing lipase, avoiding the loss of lipase with the liquor, realizing reuse, and reducing the aging cost. Attached Figure Description
[0021] Figure 1 The diagram shown is a structural illustration of a stirring and ripening device for esterification proposed in this utility model.
[0022] Figure 2 As shown Figure 1 Longitudinal section view.
[0023] Figure 3 As shown Figure 2 A partial 3D view.
[0024] Figure 4 As shown Figure 3 A structural diagram of the stirring mechanism.
[0025] Figure 5 The image shown is an exploded view of the stirring mechanism.
[0026] Figure 6 As shown Figure 5 Enlarged view of point A in the middle.
[0027] Figure 7 As shown Figure 6 Exploded view.
[0028] Explanation of main component symbols
[0029] 1. Reactor; 2. Stirring box; 3. Stirring mechanism; 301. Motor; 302. Gear ring; 303. Sun gear; 304. Planetary gear; 305. Planetary carrier; 306. Stirring rod; 307. Baffle; 4. Valve; 5. Support; 6. Fixing mechanism; 601. Connecting box; 602. Reactor box; 603. Magnet plate I; 604. Magnet plate II.
[0030] The above description of the main component symbols, together with the accompanying drawings and specific embodiments, provides a further detailed explanation of this utility model. Detailed Implementation
[0031] The specific embodiments of this utility model are described in detail below.
[0032] Please see Figure 1-3This embodiment provides a stirring and ripening device for esterification, which includes a reaction vessel 1, a stirring box 2 detachably installed at the top of the reaction vessel 1, a stirring mechanism 3 installed on the stirring box 2, a bracket 5 fixedly installed at the bottom of the reaction vessel 1, and a fixing mechanism 6 installed inside the reaction vessel 1 and connected to the stirring mechanism 3.
[0033] The top of the reactor 1 is open, and a drain pipe is fixedly connected to the drain port of the reactor 1. A valve 4 is installed on the drain pipe, and the valve 4 is located below the reactor 1. An inlet pipe is fixedly connected to the liquid inlet of the reactor 1, and the angle between the inlet pipe and the reactor 1 is 45°. A pipe cap is installed at the liquid inlet end of the inlet pipe.
[0034] The stirring mechanism 3 designed in this embodiment optimizes the traditional structure that uses circumferential rotation for stirring. It constructs a three-dimensional composite stirring system within the reactor 1, increasing radial and axial shear forces, thereby improving the uniformity of mixing. Please refer to [reference needed]. Figure 4-5 The stirring mechanism 3 includes a motor 301 fixed to the top of the stirring box 2, a gear ring 302 fixedly installed on the inner wall of the stirring box 2, a sun gear 303 fixedly installed at the output end of the motor 301, a planetary carrier 305 located below the sun gear 303 and rotatably connected to the output end of the motor 301, three stirring rods 306 vertically rotatably connected to the planetary carrier 305, planetary gears 304 fixedly sleeved on the corresponding stirring rods 306 and meshing with the sun gear 303, and a baffle 307.
[0035] Three stirring rods 306 are arranged around the sun gear 303, and the planetary gear 304 meshes with the ring gear 302. A baffle 307 is located below the planetary carrier 305, and the stirring rods 306 are arranged vertically through the baffle 307. In this embodiment, the baffle 307 is designed to prevent liquor from splashing into the meshing transmission area of the stirring mechanism 3. To better prevent splashing, the diameter of the baffle 307 is the same as the inner diameter of the reactor 1. Furthermore, the baffle 307 is fixed to the stirring box 2 by means of a rod (not shown). In this way, the baffle 307 is suspended in the reactor 1 to provide a shielding effect without affecting the installation and removal of the fixing mechanism 6.
[0036] The stirring rod 306 has stirring blades at the end facing away from the output end of the motor 301. In this embodiment, the stirring mechanism 3 stirs the liquor in the reaction vessel 1 to promote the esterification reaction. Specifically, the motor 301 is started, and the output end of the motor 301 drives the sun gear 303 to rotate. Since the gear ring 302 is fixed in the stirring box 2, under the drive of the sun gear 303, the planetary gear 304 meshing with it revolves around the axis of the sun gear 303 and rotates around its own axis. At the same time, the stirring rod 306, which is fixedly connected to the planetary gear 304, moves synchronously with the planetary gear 304. The baffle 307 prevents the liquor from splashing into the meshing transmission area of the stirring mechanism 3. In this way, the liquor in the reaction vessel 1 can be stirred in all directions without dead angles, accelerating the mixing of lipase and liquor, promoting the esterification reaction, increasing the stirring range and intensity, promoting the full progress of the reaction, and improving the aging effect of liquor.
[0037] To better utilize lipase, this embodiment includes a fixation mechanism 6 to adsorb and fix the lipase. Please refer to [further details]. Figure 6-7 The fixing mechanism 6 includes a connecting box 601, a reaction box 602, a magnetic plate I 603, and a magnetic plate II 604. The connecting box 601 is fixedly connected to the stirring blade of the stirring rod 306. The magnetic plate II 604 is embedded in the connecting box 601, and the magnetic plate I 603 is fixedly installed on the reaction box 602. When the reaction box 602 is placed in the connecting box 601, the magnetic plates I 603 and II 604 are magnetically attracted to each other. In this embodiment, the magnetic attraction properties of the magnetic plates I 603 and II 604 make it easy to disassemble the reaction box 602 for washing and replacing the macroporous adsorption resin.
[0038] The reaction chamber 602 is filled with macroporous adsorption resin, on which lipase is adsorbed and immobilized. Several holes are evenly distributed on the connecting box 601 and the reaction chamber 602, allowing liquor to pass through, thus enabling the lipase immobilized by the macroporous adsorption resin in the reaction chamber 602 to fully exert its catalytic effect on the liquor.
[0039] In this embodiment, when the stirring rod 306 rotates, it drives the connecting box 601 and the reaction box 602 to move synchronously. The liquor seeps into the box through the pores, and the lipase fixed in the macroporous adsorption resin catalyzes the esterification reaction of the liquor. This embodiment employs a magnetic structure combined with macroporous adsorption resin to immobilize the lipase, ensuring the lipase remains stable in the stirring and ripening system, thus better exerting its catalytic effect. Furthermore, because the lipase is immobilized by the macroporous adsorption resin, the loss rate is low. The macroporous resin can be easily removed for washing and impurity removal, facilitating reuse and reducing the cost of liquor ripening. It should be noted that, to facilitate the filling and removal of the macroporous adsorption resin for washing, the lid of the reaction box 602 in this embodiment is detachable, which will not be described in detail here.
[0040] The stirring and ripening device in this embodiment is used as follows:
[0041] First, remove the fixing mechanism 6 and load a certain amount of macroporous adsorption resin containing lipase into the reaction box 602, then reinstall the fixing mechanism 6. Next, send the liquor into the reaction vessel 1 through the inlet pipe and cover the pipe to prevent the loss of aroma during subsequent aging. Then, start the stirring mechanism 3. While stirring the liquor, the stirring mechanism 3 drives the fixing mechanism 6 to rotate, so that the lipase can fully contact the liquor to catalyze the reaction between free organic acids and ethanol in the mash, thus aging the liquor. Finally, open the valve 4, and the aged liquor, rich in fatty acid esters and with a strong aroma, is discharged in a specific direction along the drain pipe.
[0042] In summary, the stirring and ripening device of this embodiment has the following advantages compared with the traditional stirring and ripening method for baijiu: it constructs a composite stirring system that can generate multi-directional shear force, break the laminar flow state of the liquid, and form a strong and uniform flow field, so that the baijiu is fully stirred and mixed, improving the ripening effect of baijiu. In addition, it has the function of adsorbing and fixing lipase, avoiding the loss of lipase with the liquor, realizing reuse, and reducing ripening cost.
[0043] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A stirring and ripening apparatus for esterification, comprising a reaction vessel (1); Its features are, The stirring and ripening device also includes: A stirring box (2) is detachably mounted on the top of the reactor (1); A stirring mechanism (3) is mounted on the stirring box (2); and The fixing mechanism (6) is installed inside the reactor (1) and is connected to the stirring mechanism (3); wherein the fixing mechanism (6) includes a connecting box (601), a reaction box (602), a magnet I (603) and a magnet II (604); the reaction box (602) is filled with macroporous adsorption resin, on which lipase is adsorbed and fixed.
2. The stirring and ripening apparatus for esterification according to claim 1, characterized in that, The stirring mechanism (3) includes: The motor (301) is fixed to the top of the mixing box (2); A toothed ring (302) is fixedly installed on the inner wall of the mixing box (2); The sun gear (303) is fixedly installed at the output end of the motor (301); The planetary carrier (305) located below the sun gear (303) is rotatably connected to the output end of the motor (301); Three stirring rods (306) connected vertically to the planetary carrier (305) rotate through the shaft. A planetary gear (304) is fixedly sleeved on the corresponding stirring rod (306), which meshes with the sun gear (303); and Baffle (307).
3. The stirring and ripening apparatus for esterification according to claim 2, characterized in that, Three stirring rods (306) are arranged around the sun gear (303), and the planetary gear (304) and the gear ring (302) mesh with each other.
4. The stirring and ripening apparatus for esterification according to claim 3, characterized in that, The baffle (307) is located below the planetary carrier (305), and the stirring rod (306) is arranged vertically through the baffle (307).
5. The stirring and ripening apparatus for esterification according to claim 4, characterized in that, The stirring rod (306) has a stirring blade at the end facing away from the output end of the motor (301), and the connecting box (601) is fixedly connected to the stirring blade of the stirring rod (306).
6. The stirring and ripening apparatus for esterification according to claim 1, characterized in that, The magnet II (604) is embedded in the connecting box (601), and the magnet I (603) is fixedly installed on the reaction box (602).
7. The stirring and ripening apparatus for esterification according to claim 6, characterized in that, When the reaction box (602) is placed in the connecting box (601), the magnet I (603) and the magnet II (604) are magnetically attracted to each other.
8. The stirring and ripening apparatus for esterification according to claim 1, characterized in that, The connecting box (601) and the reaction box (602) are evenly provided with a number of holes.
9. The stirring and ripening apparatus for esterification according to claim 1, characterized in that, The stirring and ripening device also includes: A drain pipe is fixedly connected to the drain port of the reactor (1); A valve (4) is installed on the drain pipe, located below the reactor (1); and A bracket (5) is fixedly installed at the bottom of the reactor (1).
10. The stirring and ripening apparatus for esterification according to claim 1, characterized in that, The top of the reactor (1) is an open structure, and an inlet pipe is fixedly connected to the liquid inlet of the reactor (1). The angle between the inlet pipe and the reactor (1) is 45º, and a pipe cap is provided at the liquid inlet end of the inlet pipe.