Preparation process of liquorice granules

Abstract

The invention discloses a preparation process of liquorice granules, and belongs to the technical field of Chinese herbal medicine preparation processes, and the preparation process comprises the following steps: S1.1, preparing 500-1000 parts of raw liquorice, firstly heating honey to 115-120 DEG C until the honey is light red and has small bubbles, cutting half of the raw liquorice into slices, then putting the slices into the heated honey to be soaked for 4 hours, and taking out the slices; soaking the heart of the liquorice with the honey; s1.2, putting the soaked liquorice into a frying pan, adding water, slowly frying with slow fire, controlling the temperature of the frying pan to be 160-180 DEG C, and frying to obtain honey-fried liquorice; and S1.3, putting the other half of raw liquorice and honey-fried liquorice into the tank body, and decocting for three times at the temperature of 90-105 DEG C. The technical problem that if a concentrated extracting solution cannot be in sufficient, effective and uniform contact with heat after atomization, the subsequent drying and forming quality can be directly influenced, and the subsequent granulation procedure is not facilitated can be solved.

Description

Technical Field

[0001] The invention belongs to the technical field of Chinese herbal medicine preparation technology, and specifically relates to a preparation technology of liquorice granules. Background Art

[0002] Licorice is a perennial herbaceous plant of the genus Glycyrrhiza in the Leguminosae family. It is also known as Ural licorice, sweet root, sweet grass, and Guolao. Its roots and rhizomes are thick, with brown skin and sweet taste. Odd-pinnate compound leaves, both sides of the leaflets are densely covered with yellow-brown glandular dots and short soft hairs, and the edges are entire or slightly wavy. The racemes are axillary, the calyx is bell-shaped; the corolla is purple, white or yellow; the pods are curved in a sickle shape or ring shape, densely balled, and densely covered with tumor-like protrusions and spiny glands. The flowering period is from June to August, and the fruiting period is from July to October.

[0003] Licorice granules are a kind of traditional Chinese medicine preparation, the main ingredient of which is licorice fluid extract. They are used to treat many system failure syndromes and other diseases, eliminate metabolic toxins, mycotoxins and bacterial toxins in the body, and relieve heat stress. When used in combination with drugs, they can quickly improve the efficacy, accelerate disease recovery, and increase the cure rate.

[0004] During the preparation process of licorice granules, the preparation process is relatively complicated and difficult to control, which can easily affect the efficacy and quality of the licorice granules. At the same time, during the atomization and drying process of the material, if the concentrated extract cannot be fully and effectively and evenly contacted with the heat after atomization, it will directly affect the subsequent drying and molding quality, which is not conducive to the subsequent granulation process. At the same time, the heating and flow guidance equipment and the stirring mechanism generally require independent power supply to drive. From a design perspective, the energy consumption is large, which is not conducive to saving resources and environmental protection. Summary of the invention

[0005] The purpose of the present invention is to provide a preparation process for licorice granules to solve the technical problem that if the concentrated extract cannot be fully and effectively uniformly contacted with heat after atomization, it will directly affect the subsequent drying and molding quality, thereby being detrimental to the subsequent granulation process.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A preparation process of liquorice granules comprises the following steps:

[0008] S1.1, prepare 500-1000 portions of raw licorice, first heat the honey to between 115-120℃, the color is light red and bubbles appear, and then cut half of the raw licorice into thin slices, and then soak them in the heated honey for 4 hours, so that the licorice is soaked in honey;

[0009] S1.2, put the soaked licorice into a wok, add water, and slowly fry over low heat, controlling the wok temperature at 160-180°C until the licorice turns dark yellow and is not sticky. After frying, take out the licorice and let it cool to obtain roasted licorice;

[0010] S1.3, put the other half of the raw licorice and the roasted licorice into the tank, decoct for 3 times, the decoction temperature is 90-105℃, each decoction time is 2h, and the decoction extract flows into the precipitation tank to precipitate and stand overnight;

[0011] S1.4. The extract processed in step S1.3 is heated and concentrated by a concentrator, and the concentrated material is put into a spray dryer for atomization and drying to form a licorice extract. Sucrose, licorice extract and dextrin are put into a high-speed mixer in the order of 3:1:1 by weight and stirred. The stirred mixture is passed through a granulator to obtain licorice granules and packaged.

[0012] Furthermore, the spray dryer includes an atomizer placed on the top of the box, one end of the atomizer is connected to an external adapter tube, and the other end passes through the box and extends to the first conduit, the first conduit and the second conduit are connected by a bearing, the fixing rods at both ends of the bearing are connected to the side wall of the box, and the bottom of the second conduit is connected to the beam through a telescopic tube, and the bottom end of the beam is equipped with an atomizing nozzle connected to the telescopic tube.

[0013] Furthermore, a driving motor is fixedly installed at the center of the bottom end of the box body, and the output shaft of the driving motor passes through the box body and extends to the stirring assembly, and the output shaft of the driving motor and the first transmission wheel are connected by a conveyor belt transmission, and both ends of the first transmission wheel are placed in the rolling groove of the inner wall of the cover body, and one end of the cover body is fixed to the outer wall of the box body by a bracket.

[0014] Furthermore, the outer wall of the first transmission wheel is fixed on the first bidirectional bevel gear, and the upper and lower ends of the outer wall of the first bidirectional bevel gear are respectively meshed and transmitted with the second bidirectional bevel gear and the first bevel gear, and one end of the second bidirectional bevel gear is meshed and transmitted with the second bevel gear fixed on the second guide tube, and the rotating shaft at the center of the second bidirectional bevel gear is fixedly installed on the cam, and the outer wall of the cam contacts and fits the resistance wheel fixed on the lifting rod, and the extensions at both ends of the lifting rod are connected to the panel of the inner wall of the box through compression springs.

[0015] Among them, the center of the first bevel gear is fixed on the second transmission wheel, one end of the second transmission wheel extends to the rotating blade inside the third duct, and the two ends of the third duct are respectively connected to the inlet pipe and the outlet pipe placed on the two ends of the inner wall of the box, and a heater adapted to it is fixedly installed on the inlet pipe.

[0016] Furthermore, a spiral tube extending upward from the inside of the box is provided between the air inlet pipe and the air outlet pipe, and a one-way valve is connected to each of the air inlet pipe and the air outlet pipe respectively, and a sealing gasket is connected to the second transmission wheel near the corner of the third conduit.

[0017] Furthermore, a flow guide cavity is formed between the sealing gasket and the inner wall of the third conduit, and a movable opening connected to the second transmission wheel is opened on the sealing gasket.

[0018] Furthermore, rollers are movably connected to both ends of the center of the lifting rod, the rollers are in contact with and fit with a rotating ring fixed on the telescopic tube, and an annular groove connected to the rollers is provided on the edge of the outer wall of the rotating ring.

[0019] Furthermore, the stirring assembly includes a third bevel gear connected to the output shaft of the driving motor, and the outer wall of the third bevel gear is meshed with a fourth bevel gear fixed on the transmission shaft. The transmission shaft is provided with a through hole arranged on the inner wall of the shell, and the outer wall of the transmission shaft is installed with a stirring rod arranged between the shell and the inner wall of the box body by plugging.

[0020] Furthermore, the weight of each portion of the raw licorice is 0.3kg-0.6kg.

[0021] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0022] The invention prepares the product by processing half of the raw licorice and then decocting and filtering the product with other raw licorice. The product has the advantages of simple processing technology, easy control, high product bioavailability, good medicinal effect and rapid therapeutic effect.

[0023] (2) A spray dryer is provided. The atomizer disperses the concentrated extract into very fine particles through mechanical action and discharges the concentrated extract through the atomizing nozzle. At this time, the driving motor is started, and the second conduit on the second bevel gear rotates on the bearing through the transmission action of the conveyor belt, thereby playing a role of rotating spray to the atomizing nozzle. At the same time, a cam and a resistance wheel are provided, which can convert the rotational motion of the cam into the linear motion of the lifting rod, and drive the telescopic tube to move synchronously up and down. The spiral tube for heat transmission can expand the contact area between the material and the heat, and improve the drying and forming effect of the licorice. In addition, the starting of the driving motor can drive the rotation of the second transmission wheel under the action of mechanical transmission, and then the rotating blades in the third conduit rotate, thereby playing a role of conveying and guiding. Corresponding one-way valves are also provided on the air inlet pipe and the air outlet pipe, which can effectively prevent the heat from flowing back or accumulating, thereby being not conducive to the stable heat transmission inside the heater. Moreover, the heat transmitted in this way can be recycled, and no additional power source is required to drive the rotating blades, which effectively saves resources and is beneficial to environmental protection.

[0024] (3) A stirring assembly is provided. After the driving motor is started, the third bevel gear can drive the fourth bevel gear to rotate, thereby driving the stirring rods on the surrounding transmission shafts to rotate simultaneously, thereby further ensuring that the material can be fully and evenly contacted with the heat, preventing the material at the bottom from being unable to contact with the heat due to accumulation, thereby affecting the thermoforming effect of the licorice. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is a schematic flow chart of a preparation process of liquorice granules of the present invention;

[0027] Figure 2 It is a structural schematic diagram of the spray dryer of the present invention;

[0028] Figure 3 is an internal schematic diagram of the spray dryer of the present invention;

[0029] Figure 4 The present invention Figure 3 A front view of

[0030] Figure 5 is a schematic diagram of the meshing transmission of the first bidirectional bevel gear of the present invention;

[0031] Figure 6 The present invention Figure 3 A magnified image of point A;

[0032] Figure 7 The present invention Figure 3 A magnified view of point B;

[0033] Figure 8 is a schematic diagram of the connection between the second driven wheel and the rotating blade of the present invention;

[0034] Fig. 9 It is a schematic diagram of the meshing transmission of the third bevel gear and the fourth bevel gear of the present invention.

[0035] Figure numerals: 1, spray dryer; 2, atomizer; 3, first conduit; 4, second conduit; 5, bearing; 6, telescopic tube; 7, crossbeam; 8, atomizing nozzle; 9, drive motor; 10, stirring assembly; 11, first transmission wheel; 12, conveyor belt; 13, first bidirectional bevel gear; 14, second bidirectional bevel gear; 15, first bevel gear; 16, second bevel gear; 17, cam; 18, lifting rod; 19, resistance wheel; 20, compression spring; 21, panel; 22, second transmission wheel; 23, third conduit; 24, rotating blade; 25, air inlet pipe; 26, air outlet pipe; 27, heater; 28, spiral tube; 29, one-way valve; 30, sealing gasket; 31, roller; 32, rotating ring; 33, annular groove; 34, third bevel gear; 35, transmission shaft; 36, fourth bevel gear; 37, stirring rod. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Example 1: Refer to the attached manual Figure 1 As shown, a preparation process of liquorice granules comprises the following steps:

[0038] S1.1, prepare raw licorice: 850 parts, first heat the honey to 116℃, the color is light red and bubbles appear, and cut half of the raw licorice into thin slices, and then soak it in the heated honey for 4 hours, so that the licorice is soaked in honey;

[0039] S1.2, put the soaked licorice into a wok, add water, and slowly fry over low heat, controlling the wok temperature at 170°C until the licorice turns dark yellow and is not sticky. After frying, take out the licorice and let it cool to obtain roasted licorice;

[0040] S1.3, put the other half of the raw licorice and the roasted licorice into the tank, decoct for 3 times, the decoction temperature is 100℃, each decoction time is 2h, and the decoction extract flows into the precipitation tank to precipitate and stand overnight;

[0041] S1.4. The extract processed in step S1.3 is heated and concentrated by a concentrator, and the concentrated material is put into a spray dryer 1 for atomization and drying to form a licorice extract. Sucrose, licorice extract and dextrin are put into a high-speed mixer in the order of a weight ratio of 3:1:1, and the stirred mixture is passed through a granulator to obtain licorice granules and packaged.

[0042] Specifically, before processing and production, the weight of licorice is confirmed by an electronic scale, and the name, quantity and other information of the medicinal material are checked to see if they are consistent with the production prescription. During the frying process, the weight ratio of the added water to the licorice is between 1:(10-12). During the three decoctions, the weight ratios of the total weight of the other half of the raw licorice and the roasted licorice to the water are 1:8, 1:6 and 1:6 respectively.

[0043] The specific working principle of the concentrator is as follows:

[0044] Open the condenser cooling water valve to start the concentrator vacuum, open the feed valve, and suck the supernatant of the extract in the sedimentation tank to the position just out of the concentrator sight glass. Stop feeding, open the heater steam valve, and adjust the steam valve opening after the liquid boils. Maintain the vacuum degree within the required range for stable concentration, open the feed valve appropriately to feed continuously, and maintain the liquid level in the middle of the concentrator sight glass. After all the extract has been fed, continue to concentrate until the moisture content of the concentrate is ≤60%, stop concentrating, close the steam valve, close the vacuum valve and empty it, and pump the concentrated material into the concentrate storage tank of the spray dryer.

[0045] After drying and forming, the granulator can choose a rotary granulator or add the high-speed mixed material into the rotary granulator in appropriate amounts for multiple times, and the prepared granules are discharged into a clean container. Finally, they can be selectively dried twice through a dryer.

[0046] Use fluidized bed dryer, start induced draft fan, open air heater steam valve, set inlet air temperature to 100℃, outlet air temperature to 60℃ (target is to control material temperature to 60±5℃), put granules into rotary granulation process and start drying, control material moisture content not to exceed 5% (detected by on-site rapid moisture meter), after moisture meets the standard, discharge into clean stainless steel barrel, cover and seal, mark, notify QA to take samples, conduct semi-finished product inspection according to semi-finished product inspection standard for liver and gallbladder granules, after qualified inspection, issue semi-finished product inspection qualified report to workshop, then enter next process for packaging.

[0047] Finally, the licorice granules are effectively sealed and packaged in the form of inner and outer packaging. The licorice granules in the stainless steel barrel are collected in the temporary material storage room and put into the cleaned granule packaging machine. According to the 500g / bag weight specified in the packaging instruction, the granule packaging machine packaging weight is set to 502g / bag. Check whether the printed information on the packaging bag is correct. After verification, the sub-packaging is carried out. The sub-packed product bags are placed in the sealing machine for sealing at a temperature between 205 and 210℃. Be careful not to make the aluminum-plastic bag misaligned or wrinkled after heating, and the sealing should be tight. The sub-packaged licorice granules are transferred to the outer packaging room through the transfer window.

[0048] Example 2: Refer to the attached manual Figure 1 As shown, a preparation process of liquorice granules comprises the following steps:

[0049] S1.1, prepare 980 portions of raw licorice, heat honey to 120℃, the color is light red and bubbles appear, cut half of the raw licorice into thin slices, and then soak it in the heated honey for 4 hours, so that the licorice is soaked in honey;

[0050] S1.2, put the soaked licorice into a wok, add water, and slowly fry over low heat, controlling the wok temperature at 178°C until the licorice turns dark yellow and is not sticky. After frying, take out the licorice and let it cool to obtain roasted licorice;

[0051] S1.3, put the other half of the raw licorice and the roasted licorice into the tank, decoct for 3 times, the decoction temperature is 105℃, each decoction time is 2h, and the decoction extract flows into the precipitation tank to precipitate and stand overnight;

[0052] S1.4. The extract processed in step S1.3 is heated and concentrated by a concentrator, and the concentrated material is put into a spray dryer 1 for atomization and drying to form a licorice extract. Sucrose, licorice extract and dextrin are put into a high-speed mixer in the order of a weight ratio of 3:1:1, and the stirred mixture is passed through a granulator to obtain licorice granules and packaged.

[0053] Example 3: Refer to the attached manual Figure 1 As shown, a preparation process of liquorice granules comprises the following steps:

[0054] S1.1, prepare 530 portions of raw licorice, first heat the honey to between 116°C, the color is light red and bubbles appear, cut half of the raw licorice into thin slices, and then soak it in the heated honey for 4 hours, so that the licorice is soaked in honey;

[0055] S1.2, put the soaked licorice into a wok, add water, and slowly fry over low heat, controlling the wok temperature at 163°C until the licorice turns dark yellow and is not sticky. After frying, take out the licorice and let it cool to obtain roasted licorice;

[0056] S1.3, put the other half of the raw licorice and the roasted licorice into the tank, decoct for 3 times, the decoction temperature is 93℃, each decoction time is 2h, and the decoction extract flows into the sedimentation tank to precipitate and stand overnight;

[0057] S1.4. The extract processed in step S1.3 is heated and concentrated by a concentrator, and the concentrated material is put into a spray dryer 1 for atomization and drying to form a licorice extract. Sucrose, licorice extract and dextrin are put into a high-speed mixer in the order of a weight ratio of 3:1:1, and the stirred mixture is passed through a granulator to obtain licorice granules and packaged.

[0058] Example 4: Reference Figure 2 , Figure 3 and Figure 4 The spray dryer 1 includes an atomizer 2 placed on the top of a box body, one end of the atomizer 2 is connected to an external adapter tube, and the other end passes through the box body and extends to a first conduit 3. The first conduit 3 and the second conduit 4 are connected through a bearing 5. The fixing rods at both ends of the bearing 5 are connected to the side wall of the box body, and the bottom of the second conduit 4 is connected to a crossbeam 7 through a telescopic tube 6. The bottom end of the crossbeam 7 is equipped with an atomizing nozzle 8 connected to the telescopic tube 6. The function of the atomizer 2 is essentially to disperse the material to be dried into fine particles through mechanical action, and then contact with hot air to remove most of the moisture in an instant, so that the solid matter in the material is dried into powder.

[0059] A driving motor 9 is fixedly installed at the center of the bottom end of the box body. The output shaft of the driving motor 9 passes through the box body and extends to the stirring assembly 10. The output shaft of the driving motor 9 and the first transmission wheel 11 are connected through a conveyor belt 12. Both ends of the first transmission wheel 11 are placed in the rolling groove of the inner wall of the cover body, and one end of the cover body is fixed to the outer wall of the box body through a bracket.

[0060] Specifically, after the driving motor 9 is started, it can drive the first bidirectional bevel gear 13 on the first transmission wheel 11 to rotate through the conveyor belt 12. The first bidirectional bevel gear 13, as a transmission medium, can drive the synchronous movement of the lifting component and the guide component. In this way, during the lifting and lowering process of the atomizing nozzle 8, the licorice material can be fully in vibration contact with the heat as much as possible, thereby ensuring the subsequent drying effect. In addition, the setting of the guide component can recycle the heat, so that there is no need to rely on an additional power source for guide drive, saving resources.

[0061] refer to Figure 5 , Figure 6 , Figure 7 and Figure 8 The outer wall of the first transmission wheel 11 is fixed on the first bidirectional bevel gear 13, and the upper and lower ends of the outer wall of the first bidirectional bevel gear 13 are respectively meshed and transmitted with the second bidirectional bevel gear 14 and the first bevel gear 15, and one end of the second bidirectional bevel gear 14 is meshed and transmitted with the second bevel gear 16 fixed on the second conduit 4, and the rotating shaft at the center of the second bidirectional bevel gear 14 is fixedly installed on the cam 17, and the outer wall of the cam 17 contacts and fits with the resistance wheel 19 fixed on the lifting rod 18, and the extensions at both ends of the lifting rod 18 are connected to the panel 21 on the inner wall of the box through compression springs 20.

[0062] Specifically, the center of the first bevel gear 15 is fixed on the second transmission wheel 22, one end of the second transmission wheel 22 extends to the rotating blade 24 inside the third duct 23, and the two ends of the third duct 23 are respectively connected to the inlet pipe 25 and the outlet pipe 26 placed on the two ends of the inner wall of the box body, and a heater 27 adapted to it is fixedly installed on the inlet pipe 25.

[0063] Both ends of the telescopic tube 6 are actually provided with protrusions extending into the limiting groove of the second guide tube 4, so that the second guide tube 4 can not only drive the telescopic tube 6 to rotate normally, but also allow the telescopic tube 6 to move up and down accordingly. At the same time, the telescopic tube 6 is provided with a rotating ring 32 connected to the roller 31, and the rotating ring 32 is fixed on the telescopic tube 6. In this way, the lifting rod 18 can move up and down normally by rolling friction, and the rotating ring 32 can also be rotated, avoiding interference between structural parts. Moreover, the connection by rolling friction can effectively reduce friction and reduce friction damage, thereby increasing the service life of the device.

[0064] A spray dryer 1 is provided, and an atomizer 2 disperses the concentrated extract into very fine particles through mechanical action and discharges the concentrated extract through an atomizing nozzle 8. At this time, the driving motor 9 is started, and the second guide tube 4 on the second bevel gear 16 rotates on the bearing 5 through the transmission action of the conveyor belt 12, thereby playing a role of rotating spray to the atomizing nozzle 8. At the same time, a cam 17 and a resistance wheel 19 are provided, which can convert the rotational motion of the cam 17 into the linear motion of the lifting rod 18, and drive the telescopic tube 6 to move synchronously up and down, and cooperate with the spiral tube 28 for heat transmission, which can expand the contact area between the material and the heat, thereby improving The drying and molding effect of licorice. In addition, the start-up of the driving motor 9 can drive the rotation of the second transmission wheel 22 under the action of mechanical transmission, and then the rotating blades 24 in the third conduit 23 rotate, thereby playing a role in conveying and guiding. Corresponding one-way valves 29 are also provided on the air inlet pipe 25 and the air outlet pipe 26, which can effectively prevent the heat from flowing back or accumulating, thereby being detrimental to the stable heat delivery inside the heater 27. Moreover, the heat delivered in this way can be recycled, and there is no need to consume additional power source to drive the rotating blades 24, which effectively saves resources and is beneficial to environmental protection.

[0065] When the second bidirectional bevel gear 14 rotates, it can drive the second conduit 4 on the second bevel gear 16 to rotate together. Since the second conduit 4 is movably connected to the first conduit 3 through the bearing 5, the second conduit 4 can not only maintain free rotation, but also effectively and stably transport the licorice material to prevent the pipe body connection from being separated. In addition, when the second conduit 4 drives the telescopic tube 6 to rotate, since the lifting rod 18 is connected to the telescopic tube 6, in order to ensure that the telescopic tube 6 can rotate freely, the lifting rod 18 can also drive the telescopic tube 6 to move up and down normally.

[0066] refer to Figure 3 and Fig. 9 A spiral tube 28 extending upward from the inside of the box is provided between the air inlet pipe 25 and the air outlet pipe 26, and a one-way valve 29 is connected to each of the air inlet pipe 25 and the air outlet pipe 26, a sealing gasket 30 is connected to the second transmission wheel 22 near the corner of the third conduit 23, a guide cavity is formed between the sealing gasket 30 and the inner wall of the third conduit 23, and a movable opening connected to the second transmission wheel 22 is opened on the sealing gasket 30.

[0067] Specifically, rollers 31 are movably connected at both ends of the center of the lifting rod 18, the roller 31 is in contact with a rotating ring 32 fixed on the telescopic tube 6, and the outer wall edge of the rotating ring 32 is provided with an annular groove 33 connected to the roller 31, the stirring assembly 10 includes a third bevel gear 34 connected to the output shaft of the driving motor 9, the outer wall of the third bevel gear 34 is meshed and driven with a fourth bevel gear 36 fixed on the transmission shaft 35, the transmission shaft 35 is provided with a through hole arranged on the inner wall of the shell, and the outer wall of the transmission shaft 35 is installed with a stirring rod 37 arranged between the shell and the inner wall of the box body by plugging, and the weight of each portion of raw licorice is 0.3kg-0.6kg.

[0068] The stirring assembly 10 actually rotates synchronously under the action of the drive motor 9, and cooperates with the third bevel gear 34 and the fourth bevel gear 36 to drive the surrounding transmission shafts 35 to rotate, thereby causing the stirring rod 37 to rotate, stir and mix, so that the material can further contact with the heat, thereby improving the drying and molding effect. At the same time, the shell setting on the inner wall of the box can provide support and activity space for the transmission shaft 35, and can also play a certain protective role for the internal third bevel gear 34 and the fourth bevel gear 36 to prevent the transmission shaft 35 from being out of position during rotation. Moreover, the transmission shaft 35 is connected to the stirring rod 37 by plugging and fixing, which can facilitate the installation and disassembly of the structural parts, facilitate personnel operation and improve work efficiency.

[0069] A stirring assembly 10 is provided. After the driving motor 9 is started, the fourth bevel gear 36 can be driven to rotate through the third bevel gear 34, and then the stirring rods 37 on the surrounding transmission shafts 35 can be driven to rotate simultaneously, thereby further ensuring that the material can be fully and evenly contacted with the heat, preventing the material at the bottom from being unable to contact with the heat due to accumulation, thereby affecting the thermoforming effect of the licorice.

[0070] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

[0071] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A process for preparing liquorice granules, characterized in that: The steps include: S1.1, prepare 500-1000 portions of raw licorice, first heat the honey to between 115-120℃, the color is light red and bubbles appear, and then cut half of the raw licorice into thin slices, and then soak them in the heated honey for 4 hours, so that the licorice is soaked in honey; S1.2, put the soaked licorice into a wok, add water, and slowly fry over low heat, controlling the wok temperature at 160-180°C until the licorice turns dark yellow and is not sticky. After frying, take out the licorice and let it cool to obtain roasted licorice; S1.3, put the other half of the raw licorice and the roasted licorice into the tank, decoct for 3 times, the decoction temperature is 90-105℃, each decoction time is 2h, and the decoction extract flows into the precipitation tank to precipitate and stand overnight; S1.

4. The extract processed in step S1.3 is heated and concentrated by a concentrator, and the concentrated material is put into a spray dryer (1) for atomization and drying to form a licorice extract. Sucrose, licorice extract and dextrin are put into a high-speed mixer in the order of 3:1:1 by weight and stirred. The stirred mixture is passed through a granulator to obtain licorice granules and packaged.

2. The preparation process of liquorice granules according to claim 1, characterized in that: The spray dryer (1) comprises an atomizer (2) placed on the top of a box body, one end of the atomizer (2) is connected to an external adapter tube, and the other end thereof penetrates the box body and extends to a first conduit (3), the first conduit (3) and the second conduit (4) are connected via a bearing (5), the fixing rods at both ends of the bearing (5) are connected to the side wall of the box body, and the bottom of the second conduit (4) is connected to a crossbeam (7) via a telescopic tube (6), and an atomizing nozzle (8) connected to the telescopic tube (6) is installed at the bottom end of the crossbeam (7).

3. The preparation process of liquorice granules according to claim 2, characterized in that: A driving motor (9) is fixedly mounted at the center of the bottom end of the housing, the output shaft of the driving motor (9) passes through the housing and extends to the stirring assembly (10), and the output shaft of the driving motor (9) and the first transmission wheel (11) are connected by a conveyor belt (12), both ends of the first transmission wheel (11) are placed in rolling grooves on the inner wall of the housing, and one end of the housing is fixed to the outer wall of the housing through a bracket.

4. The preparation process of liquorice granules according to claim 3, characterized in that: The outer wall of the first transmission wheel (11) is fixed on the first bidirectional bevel gear (13); the upper and lower ends of the outer wall of the first bidirectional bevel gear (13) are respectively meshed with the second bidirectional bevel gear (14) and the first bevel gear (15); one end of the second bidirectional bevel gear (14) is meshed with the second bevel gear (16) fixed on the second conduit (4); and the rotating shaft at the center of the second bidirectional bevel gear (14) is fixedly mounted on the cam (17); the outer wall of the cam (17) contacts and fits with the abutment wheel (19) fixed on the lifting rod (18); and the extensions at both ends of the lifting rod (18) are connected to the panel (21) on the inner wall of the box body through compression springs (20); The center of the first bevel gear (15) is fixed on the second transmission wheel (22), one end of the second transmission wheel (22) extends to the rotating blade (24) inside the third conduit (23), and the two ends of the third conduit (23) are respectively connected to an air inlet pipe (25) and an air outlet pipe (26) arranged at the two ends of the inner wall of the box body, and a heater (27) adapted thereto is fixedly mounted on the air inlet pipe (25).

5. The preparation process of liquorice granules according to claim 4, characterized in that: A spiral tube (28) is arranged between the air inlet pipe (25) and the air outlet pipe (26) and extends upwards from the inside of the box, and a one-way valve (29) is connected to each of the air inlet pipe (25) and the air outlet pipe (26) respectively, and a sealing pad (30) is connected to the second transmission wheel (22) near the corner of the third guide tube (23).

6. The preparation process of liquorice granules according to claim 5, characterized in that: A flow guide cavity is formed between the sealing pad (30) and the inner wall of the third conduit (23), and a movable opening connected to the second transmission wheel (22) is provided on the sealing pad (30).

7. The preparation process of liquorice granules according to claim 4, characterized in that: The lifting rod (18) is movably connected to rollers (31) at both ends of the center, and the rollers (31) are in contact with and fit with a rotating ring (32) fixed on the telescopic tube (6), and an annular groove (33) connected to the rollers (31) is provided on the outer wall edge of the rotating ring (32).

8. The preparation process of liquorice granules according to claim 3, characterized in that: The stirring assembly (10) comprises a third bevel gear (34) connected to the output shaft of the driving motor (9); the outer wall of the third bevel gear (34) is meshed with a fourth bevel gear (36) fixed on a transmission shaft (35); the transmission shaft (35) is provided with a through hole disposed on the inner wall of the shell; and the outer wall of the transmission shaft (35) is installed with a stirring rod (37) disposed between the shell and the inner wall of the box by plugging.

9. The process for preparing the liquorice granules according to any one of claims 1 to 8, characterized in that: The weight of each portion of the raw licorice is 0.3kg-0.6kg.

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