Processing method of freeze-dried instant black tea

Abstract

The invention discloses a processing method of freeze-dried instant black tea, and belongs to the technical field of black tea processing, the freeze-dried instant black tea comprises an extraction cylinder, the top end of the extraction cylinder is provided with a crushing assembly, a second stirring shaft rod is connected with an auxiliary stirring assembly and a scraping assembly which are located in a concentration cylinder, and one side of the concentration cylinder is provided with a freeze dryer. Black tea raw materials are fully smashed through the smashing assembly, the smashed black tea raw materials enter the extraction barrel, a plurality of second stirring rods are driven by a second stirring shaft rod to stir black tea mixed liquid, the concentration speed of the mixed liquid is increased, the auxiliary stirring assembly is driven by the second stirring shaft rod to work, and the concentration efficiency of the mixed liquid is improved. A second stirring shaft rod drives a material scraping assembly to scrape off raw materials adhered to the inner side wall of the concentration barrel to participate in stirring, so that the stirring efficiency is improved, and the stirring efficiency is improved. The stirring sufficiency of the mixed liquid is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of black tea processing, and particularly relates to a processing method of freeze-dried instant black tea. Background Art

[0002] Black tea is a fully fermented tea. It is made from the buds and leaves of tea trees and refined through withering, rolling, fermentation, drying and other processes. Because the color of its dry tea and brewed tea soup is mainly red, it is called black tea. With the improvement of people's living standards and the update of tea deep processing technology, instant black tea powder has become a fast-selling product in the black tea series and is widely favored by consumers. The research on the processing technology of instant black tea powder has also become a hot topic for researchers. Especially in recent years, people have begun to pursue a higher quality of life and its products, and high-quality and personalized needs have gradually been stimulated.

[0003] Instant tea, also known as soluble tea, crystallized tea, tea essence, etc., is made from tea leaves through deep processing. It is a solid particle formed by extracting, filtering, concentrating and drying tea raw materials. Traditional instant black tea processing mostly uses black tea produced by solid-state fermentation of fresh leaves as raw materials and is processed using liquid plant extraction technology. There are problems such as long concentration processing time, low extraction efficiency and under-utilization of resources. Therefore, how to improve the quality of instant black tea while improving the concentration extraction efficiency has become a technical problem that needs to be solved urgently.

[0004] Therefore, a method for processing freeze-dried instant black tea is needed to solve the problems raised in the above background technology. Summary of the invention

[0005] The object of the present invention is to provide a processing method for freeze-dried instant black tea to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A processing method for freeze-dried instant black tea, the processing method is based on an extraction cylinder, a crushing component, an auxiliary stirring component and a scraping component, and the processing method comprises the following steps:

[0008] S1, the black tea raw material is put into the feed box through the top opening of the feed box, the two second crushing rollers at the bottom have a crushing fineness smaller than that of the two first crushing rollers at the top, so that the two first motors and the gear extraction cylinder cooperate to drive the two groups of first crushing rollers and second crushing rollers to fully crush the raw material, and the crushed black tea raw material enters the extraction cylinder;

[0009] S2, inserting the plug plate into the feed box, thereby closing the feed box through the provided plug plate, and preventing the black tea mixed liquid component from escaping through the opening of the feed box;

[0010] S3, delivering the solvent liquid into the extraction cylinder through the feed pipe, starting the first motor to work, thereby driving the vibration plate to vibrate at a high frequency through the first motor, so that the effective ingredients in the black tea raw material are fully dissolved in the solvent to form a mixed liquid;

[0011] S4, delivering the mixed liquid to the inside of the concentration cylinder through the first infusion pump and the first feeding pipe, heating the mixed liquid in the concentration cylinder through a plurality of electric heating plates, thereby evaporating water in the solution, and concentrating the black tea mixed liquid;

[0012] S5. The output end of the second motor drives the second stirring shaft to rotate, thereby driving multiple second stirring rods to stir the black tea mixed liquid through the second stirring shaft to increase the concentration speed of the mixed liquid, and the second stirring shaft drives the connecting plate to rotate, and the connecting plate drives the gear to rotate around the central axis of the second stirring shaft, thereby driving the first stirring shaft to rotate through the cooperation of the gear and the gear ring, so that the first stirring shaft rotates around the center of the second stirring shaft and rotates on its own at the same time, thereby supplementing the stirring of the mixed liquid inside the concentration cylinder near the side wall of the concentration cylinder through the first stirring rod, and the concentrated liquid is transported to the freeze dryer through the second infusion pump for freeze drying.

[0013] It should be noted in the scheme that a crushing assembly is provided on the top of the extraction cylinder, a sealing assembly is provided on the crushing assembly, a first bottom plate is fixed at the bottom of the extraction cylinder, a first motor is fixed on the top side of the first bottom plate, the output end of the first motor extends into the interior of the extraction cylinder and is fixed with a vibration plate, a feed pipe connected to the interior of the extraction cylinder is fixed on the outer wall of the extraction cylinder, a concentration cylinder is provided on one side of the extraction cylinder, a first infusion pump is provided between the extraction cylinder and the concentration cylinder, a first feed pipe connected to the interior of the concentration cylinder and the extraction cylinder is fixed on the output end and the input end of the first infusion pump, and a plurality of annular A distributed electric heating plate, a second bottom plate is fixed under the concentrating cylinder, a second stirring shaft is rotatably connected at the center of the bottom side wall of the concentrating cylinder, a second motor is fixed on the top side of the second bottom plate and the output end of the second motor is fixed to the bottom end of the second stirring shaft, a plurality of second stirring rods distributed in a ring are fixed on the side of the second stirring shaft, an auxiliary stirring assembly and a scraping assembly located inside the concentrating cylinder are connected to the second stirring shaft, a freeze dryer is arranged on one side of the concentrating cylinder, a second infusion pump is arranged between the concentrating cylinder and the freeze dryer, and a second delivery pipe connected to the freeze dryer and the inside of the concentrating cylinder is fixed on the output and input ends of the second infusion pump.

[0014] It should be noted in the scheme that the crushing assembly includes a feed box fixed to the top side of the extraction cylinder and connected to the inside of the extraction cylinder, two first crushing rollers that cooperate with each other are rotatably connected to the side wall of the feed box, and two second crushing rollers that cooperate with each other and are located below the first crushing roller are rotatably connected to the side wall of the feed box, one end of the first crushing roller and the second crushing roller are fixed with gears, and a first motor that drives the first crushing roller and the second crushing roller to rotate is fixed to the outer side wall of the feed box.

[0015] It is further worth mentioning that a feed hopper is fixed on the top of the feed box, and a material guide plate is fixed on the inner wall of the feed box. Two material guide plates are provided and the two material guide plates are symmetrically distributed.

[0016] It should be further explained that the closure assembly includes an insert plate that is slidably inserted into the feed box, a first convex plate is fixed to the outer wall of the feed box, and a second convex plate that fits with the first convex plate is fixed to the outer end of the insert plate.

[0017] Preferably, a second plug hole is provided on the side surface of the second protruding plate, a plug pin is inserted into the second plug hole, and two first plug holes for plugging with the plug pin are provided on the side surface of the first protruding plate.

[0018] Preferably, a handle is fixed on the outer end of the plug board, and two handles are provided and are symmetrically distributed.

[0019] Preferably, the auxiliary stirring assembly includes a connecting plate fixed on the top end of the second stirring shaft, the first stirring shaft is rotatably connected to the end of the connecting plate away from the second stirring shaft, a gear ring is fixed on the inner wall of the concentrator cylinder, a gear meshing with the gear ring is fixed on the top end of the first stirring shaft, and a plurality of first stirring rods distributed in a ring are fixed on the side of the first stirring shaft.

[0020] Preferably, the scraper assembly comprises a support rod fixed on the side of the second stirring shaft, a rubber block is fixed to one end of the support rod away from the second stirring shaft, and a scraper plate in contact with the inside of the concentration cylinder is fixed to one end of the rubber block away from the support rod.

[0021] Preferably, a plurality of third stirring rods are fixed on the second stirring rod.

[0022] Compared with the prior art, the processing method of freeze-dried instant black tea provided by the present invention has at least the following beneficial effects:

[0023] (1) The present invention uses a first motor to drive a pulverizing assembly to fully pulverize black tea raw materials. The pulverized black tea raw materials enter the interior of an extraction cylinder, and a solvent liquid is transported into the interior of the extraction cylinder through a feed pipe. The first motor is started to work, thereby driving a vibration plate to vibrate at a high frequency through the first motor, so that the effective ingredients in the black tea raw materials are fully dissolved in the solvent to form a mixed liquid.

[0024] (2) The present invention uses a second stirring shaft to drive multiple second stirring rods to stir the black tea mixed liquid, thereby increasing the concentration speed of the mixed liquid. The second stirring shaft drives the auxiliary stirring component to work, so that the auxiliary stirring component supplements the stirring of the mixed liquid near the side wall of the concentration cylinder, further improving the overall stirring adequacy and further improving the overall concentration efficiency. At the same time, the second stirring shaft drives the scraping component to scrape the raw materials adhered to the inner wall of the concentration cylinder to participate in the stirring, thereby further improving the stirring adequacy of the mixed liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall processing process of the present invention;

[0026] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 3 It is a schematic diagram of the partial structure of the closure assembly of the present invention;

[0028] Figure 4 for Figure 3 The enlarged structural diagram at A in the middle;

[0029] Figure 5 It is a schematic cross-sectional structural diagram of a crushing assembly of the present invention;

[0030] Figure 6 It is a schematic diagram of the internal structure of the concentrator cylinder of the present invention;

[0031] Figure 7 It is a schematic diagram of the partial structure of the auxiliary stirring component of the present invention;

[0032] Figure 8 It is a schematic diagram of the partial structure of the scraper assembly of the present invention;

[0033] Fig. 9 It is a schematic diagram of the local structure of the sealing component of the present invention.

[0034] In the figure:

[0035] 1. Crushing assembly; 101. First crushing roller; 102. Second crushing roller; 103. Feed box; 104. Feed hopper; 105. Guide plate; 2. Closing assembly; 201. First convex plate; 202. First plug hole; 203. Second convex plate; 204. Latch; 205. Latch plate; 206. Handle; 207. Second plug hole; 3. Auxiliary stirring assembly; 301. Gear ring; 302. Gear; 303. First stirring shaft; 304. First stirring rod; 305. Connecting plate ; 4. Scraper assembly; 401. Support rod; 402. Rubber block; 403. Scraper plate; 5. Extraction cylinder; 6. Feed pipe; 7. First motor; 8. First bottom plate; 9. First infusion pump; 10. First feed pipe; 11. Concentration cylinder; 12. Electric heating plate; 13. Second motor; 14. Second bottom plate; 15. Second feed pipe; 16. Second infusion pump; 17. Freeze dryer; 18. Vibration plate; 19. Second stirring shaft; 20. Second stirring rod; 21. Third stirring rod. DETAILED DESCRIPTION

[0036] The present invention will be further described below in conjunction with the embodiments.

[0037] See also Figure 1-9 The present invention provides a processing method for freeze-dried instant black tea. The processing method is based on an extraction tube 5, a crushing component 1, an auxiliary stirring component 3 and a scraping component 4. The processing method comprises the following steps:

[0038] S1, the black tea raw material is put into the feed box 103 through the top opening of the feed box 103, and the two second crushing rollers 102 at the bottom have a crushing fineness smaller than that of the two first crushing rollers 101 at the top, so that the two first motors 7 and the gear extraction cylinder 5 cooperate to drive the two groups of first crushing rollers 101 and second crushing rollers 102 to fully crush the raw material, and the crushed black tea raw material enters the extraction cylinder 5;

[0039] S2, inserting the insert plate 205 into the feed box 103, thereby sealing the feed box 103 through the insert plate 205, so as to prevent the black tea mixed liquid component from escaping through the opening of the feed box 103;

[0040] S3, delivering the solvent liquid into the extraction cylinder 5 through the feed pipe 6, starting the first motor 7 to work, thereby driving the vibration plate 18 to vibrate at a high frequency through the first motor 7, so that the effective ingredients in the black tea raw material are fully dissolved in the solvent to form a mixed liquid;

[0041] S4, the mixed liquid is transported to the inside of the concentration cylinder 11 through the first infusion pump 9 and the first feeding pipe 10, and the mixed liquid in the concentration cylinder 11 is heated by multiple electric heating plates 12, so as to evaporate the water in the solution and concentrate the black tea mixed liquid;

[0042] S5. The output end of the second motor 13 drives the second stirring shaft 19 to rotate, thereby driving the second stirring shaft 19 to drive multiple second stirring rods 20 to stir the black tea mixed liquid to increase the concentration speed of the mixed liquid, and the second stirring shaft 19 drives the connecting plate 305 to rotate, and the connecting plate 305 drives the gear 302 to rotate around the central axis of the second stirring shaft 19, thereby driving the first stirring shaft 303 to rotate through the cooperation of the gear 302 and the gear ring 301, so that the first stirring shaft 303 rotates around the center of the second stirring shaft 19 and rotates at the same time, so that the first stirring shaft 303 rotates around the center of the second stirring shaft 19 and rotates at the same time, so that the first stirring rod 304 is used to supplement the stirring of the mixed liquid inside the concentration cylinder 11 near the side wall of the concentration cylinder 11, and the concentrated liquid is transported to the freeze dryer 17 through the second infusion pump 16 for freeze drying.

[0043] Further as Figure 2 , Figure 3 and Figure 4As shown, it is worth specifically explaining that a crushing assembly 1 is arranged on the top of the extraction cylinder 5, a sealing assembly 2 is arranged on the crushing assembly 1, a first bottom plate 8 is fixed at the bottom of the extraction cylinder 5, a first motor 7 is fixed on the top side of the first bottom plate 8, the output end of the first motor 7 extends into the interior of the extraction cylinder 5 and is fixed with a vibration plate 18, a feeding pipe 6 connected with the interior of the extraction cylinder 5 is fixed on the outer wall of the extraction cylinder 5, a concentration cylinder 11 is arranged on one side of the extraction cylinder 5, a first infusion pump 9 is arranged between the extraction cylinder 5 and the concentration cylinder 11, a first feeding pipe 10 connected with the concentration cylinder 11 and the interior of the extraction cylinder 5 is fixed on the output end and the input end of the first infusion pump 9, and a plurality of electric heating plates 12 distributed in an annular shape are fixed on the outer wall of the concentration cylinder 11. A second bottom plate 14 is fixed below the concentrating cylinder 11, a second stirring shaft 19 is rotatably connected at the center of the bottom side wall of the concentrating cylinder 11, a second motor 13 is fixed on the top side of the second bottom plate 14, and the output end of the second motor 13 is fixed to the bottom end of the second stirring shaft 19, a plurality of second stirring rods 20 distributed in an annular shape are fixed on the side of the second stirring shaft 19, an auxiliary stirring assembly 3 and a scraping assembly 4 located inside the concentrating cylinder 11 are connected to the second stirring shaft 19, a freeze dryer 17 is arranged on one side of the concentrating cylinder 11, a second infusion pump 16 is arranged between the concentrating cylinder 11 and the freeze dryer 17, and a second delivery pipe 15 communicating with the freeze dryer 17 and the inside of the concentrating cylinder 11 is fixed to the output and input ends of the second infusion pump 16;When in use, black tea is put into the grinding component 1 from the top opening of the grinding component 1, and the first motor 7 is started to work. The grinding component 1 is driven by the first motor 7 to fully grind the black tea raw materials. The ground black tea raw materials enter the extraction cylinder 5, and the solvent liquid is transported to the extraction cylinder 5 through the feeding pipe 6. The first motor 7 is started to work, so that the vibration plate 18 is driven by the first motor 7 to vibrate at a high frequency, so that the effective ingredients in the black tea raw materials are fully dissolved in the solvent to form a mixed liquid. After the dissolution is completed, the grinding component 1 is closed by the provided sealing component 2 to prevent the liquid component from escaping through the opening of the grinding component 1, and then the mixed liquid is transported to the inside of the concentration cylinder 11 through the first infusion pump 9 and the first feeding pipe 10, and then through a plurality of electric heating plates. 12 heats the mixed liquid inside the concentration cylinder 11, thereby evaporating the water in the solution and concentrating the black tea mixed liquid, and starts the second motor 13 to work. The output end of the second motor 13 drives the second stirring shaft 19 to rotate, so that the second stirring shaft 19 drives multiple second stirring rods 20 to stir the black tea mixed liquid, thereby increasing the concentration speed of the mixed liquid. The second stirring shaft 19 drives the auxiliary stirring component 3 to work, so that the auxiliary stirring component 3 supplements the stirring of the mixed liquid near the side wall of the concentration cylinder 11 inside the concentration cylinder 11, further improving the overall stirring adequacy and further improving the overall concentration efficiency. At the same time, the second stirring shaft 19 drives the scraping component 4 to scrape the raw materials adhered to the inner wall of the concentration cylinder 11 to participate in the stirring, thereby further improving the stirring adequacy of the mixed liquid. ;

[0044] Further as Figure 2 , Figure 3 and Figure 4 As shown, it is worth specifically explaining that the crushing assembly 1 includes a feed box 103 fixed to the top side of the extraction cylinder 5 and connected to the inside of the extraction cylinder 5, two mutually matching first crushing rollers 101 are rotatably connected to the side wall of the feed box 103, and two mutually matching second crushing rollers 102 located below the first crushing roller 101 are rotatably connected to the side wall of the feed box 103, and gears are fixed at one end of the first crushing roller 101 and the second crushing roller 102, and a first motor 7 that drives the first crushing roller 101 and the second crushing roller 102 to rotate is fixed on the outer side wall of the feed box 103; the black tea raw material is put into the feed box 103 through the top opening of the feed box 103, and the two second crushing rollers 102 located below have a grinding fineness smaller than that of the two first crushing rollers 101 above, so that the two first motors 7 and the gear extraction cylinder 5 cooperate to drive the two groups of first crushing rollers 101 and the second crushing rollers 102 to fully grind the raw material, and the crushed black tea raw material enters the extraction cylinder 5.

[0045] Further as Figure 4As shown, it is worth explaining in detail that a feed hopper 104 is fixed on the top of the feed box 103, and a guide plate 105 is fixed on the inner wall of the feed box 103. Two guide plates 105 are provided and the two guide plates 105 are symmetrically distributed; during specific operation, the black tea raw materials are guided to the first crushing roller 101 for crushing through the two guide plates 105.

[0046] Further as Figure 3 , Figure 4 and Figure 5 As shown, it is worth explaining in detail that the closing component 2 includes an insert plate 205 which is slidably inserted into the feed box 103, a first convex plate 201 is fixed on the outer wall of the feed box 103, and a second convex plate 203 which is in contact with the first convex plate 201 is fixed on the outer end of the insert plate 205; by inserting the insert plate 205 into the feed box 103, the feed box 103 is closed by the set insert plate 205, so as to prevent the black tea mixed liquid component from escaping through the opening of the feed box 103.

[0047] Further as Figure 6 , Figure 7 and Figure 8 As shown, it is worth specifically explaining that the auxiliary stirring assembly 3 includes a connecting plate 305 fixed on the top end of the second stirring shaft 19, and the first stirring shaft 303 is rotatably connected to the end of the connecting plate 305 away from the second stirring shaft 19, a gear ring 301 is fixed on the inner side wall of the concentration cylinder 11, a gear 302 meshing with the gear ring 301 is fixed on the top end of the first stirring shaft 303, and a plurality of first stirring rods 304 distributed in an annular shape are fixed on the side of the first stirring shaft 303; the connecting plate is driven by the second stirring shaft 19 305 rotates, and the connecting plate 305 drives the gear 302 to rotate around the central axis of the second stirring shaft 19, thereby driving the first stirring shaft 303 to rotate through the cooperation of the gear 302 and the gear ring 301, so that the first stirring shaft 303 rotates around the center of the second stirring shaft 19 and rotates on itself at the same time, so that the mixed liquid inside the concentration cylinder 11 near the side wall of the concentration cylinder 11 is supplemented by the first stirring rod 304, thereby further improving the overall stirring sufficiency and further improving the overall concentration efficiency.

[0048] Further as Figure 7 and Figure 8As shown, it is worth explaining in detail that the scraper assembly 4 includes a support rod 401 fixed on the side of the second stirring shaft 19, a rubber block 402 is fixed on the end of the support rod 401 away from the second stirring shaft 19, and a scraper plate 403 in contact with the inside of the concentrator cylinder 11 is fixed on the end of the rubber block 402 away from the support rod 401; during specific operation, the rotating second stirring shaft 19 drives the scraper plate 403 to rotate, so that the raw materials adhered to the inner wall of the concentrator cylinder 11 are scraped off by the scraper plate 403 to participate in the stirring, thereby further improving the sufficient stirring of the mixed liquid.

[0049] The scheme has the following working process: the black tea raw material is put into the feed box 103 through the top opening of the feed box 103, and the two second crushing rollers 102 at the bottom have a crushing fineness smaller than that of the two first crushing rollers 101 at the top, so that the two first motors 7 and the gear extraction cylinder 5 cooperate to drive the two groups of first crushing rollers 101 and second crushing rollers 102 to fully crush the raw material, and the crushed black tea raw material enters the extraction cylinder 5, and the insert plate 205 is inserted into the feed box 103, so that the insert plate 205 is set 05 The feed box 103 is closed to prevent the black tea mixed liquid components from escaping through the opening of the feed box 103, and the solvent liquid is transported to the inside of the extraction cylinder 5 through the feed pipe 6, and the first motor 7 is started to work, so that the first motor 7 drives the vibration plate 18 to vibrate at a high frequency, so that the effective components in the black tea raw materials are fully dissolved in the solvent to form a mixed liquid. After the dissolution is completed, the mixed liquid is transported to the inside of the concentration cylinder 11 through the first infusion pump 9 and the first feed pipe 10, and the mixed liquid in the concentration cylinder 11 is heated by multiple electric heating plates 12. The second motor 13 is started to work, and the output end of the second motor 13 drives the second stirring shaft 19 to rotate, so that the second stirring shaft 19 drives the plurality of second stirring rods 20 to stir the black tea mixed liquid to increase the concentration speed of the mixed liquid, and the second stirring shaft 19 drives the connecting plate 305 to rotate, and the connecting plate 305 drives the gear 302 to rotate around the central axis of the second stirring shaft 19, so that the gear 302 and the gear ring 30 1 drives the first stirring shaft 303 to rotate, so that the first stirring shaft 303 rotates around the center of the second stirring shaft 19 and rotates at the same time, so that the mixed liquid inside the concentration cylinder 11 near the side wall of the concentration cylinder 11 is supplemented by the first stirring rod 304, and the rotating second stirring shaft 19 drives 404 to rotate, so that the raw materials adhered to the inner wall of the concentration cylinder 11 are scraped off by the scraper plate 403 to participate in stirring and concentration, and the concentrated liquid is transported to the freeze dryer 17 through the second infusion pump 16 for freeze drying.

[0050] Further as Figure 3 and Figure 4As shown, it is worth explaining in detail that a second plug hole 207 is provided on the side of the second protruding plate 203, a latch 204 is inserted into the second plug hole 207, and two first plug holes 202 that are plugged with the latch 204 are provided on the side of the first protruding plate 201; during specific operation, the plug plate 205 is locked and limited by inserting the latch 204 into the first plug hole 202.

[0051] Further as Fig. 9 As shown, it is worth explaining in detail that a handle 206 is fixed on the outer end of the plug board 205, and two handles 206 are provided and the two handles 206 are symmetrically distributed; during specific work, the plug board 205 is conveniently pulled by the two provided handles 206, which is convenient for operation.

[0052] Further as Figure 7 and Figure 8 As shown, it is worth to explain in detail that a plurality of third stirring rods 21 are fixed on the second stirring rod 20; during specific operation, the solution is supplemented and stirred by the plurality of third stirring rods 21, so as to further improve the concentration efficiency of the mixed solution.

[0053] In summary: put the black tea away from the top opening of the grinding component 1 into the grinding component 1, start the first motor 7 to work, and drive the grinding component 1 to fully grind the black tea raw material through the first motor 7. The ground black tea raw material enters the extraction cylinder 5, and the solvent liquid is transported to the extraction cylinder 5 through the feeding pipe 6. Start the first motor 7 to work, so that the vibration plate 18 is driven by the first motor 7 to vibrate at a high frequency, so that the effective ingredients in the black tea raw material are fully dissolved in the solvent to form a mixed liquid. After the dissolution is completed, the grinding component 1 is closed by the provided sealing component 2 to prevent the liquid component from escaping through the opening of the grinding component 1, and then the mixed liquid is transported to the inside of the concentration cylinder 11 through the first infusion pump 9 and the first feeding pipe 10, and then through multiple electric heating plates 1 2. The mixed liquid inside the concentration cylinder 11 is heated to evaporate the water in the solution, and the black tea mixed liquid is concentrated. The second motor 13 is started to work, and the output end of the second motor 13 drives the second stirring shaft 19 to rotate, so that the second stirring shaft 19 drives multiple second stirring rods 20 to stir the black tea mixed liquid, thereby increasing the concentration speed of the mixed liquid, and the second stirring shaft 19 drives the auxiliary stirring component 3 to work, so that the auxiliary stirring component 3 supplements the stirring of the mixed liquid near the side wall of the concentration cylinder 11 inside the concentration cylinder 11, further improving the overall stirring adequacy, and further improving the overall concentration efficiency. At the same time, the second stirring shaft 19 drives the scraping component 4 to scrape the raw materials adhered to the inner wall of the concentration cylinder 11 to participate in the stirring, and further improve the stirring adequacy of the mixed liquid.

Claims

1. A method for processing freeze-dried instant black tea, characterized in that: The processing method is based on an extraction cylinder (5), a crushing component (1), an auxiliary stirring component (3) and a scraping component (4), and comprises the following steps: S1, feeding the black tea raw material into the feed box (103) through the top opening of the feed box (103), the two second crushing rollers (102) located at the bottom have a crushing fineness smaller than the two first crushing rollers (101) located at the top, so that the two first motors (7) and the gear extraction cylinder (5) cooperate to drive the two groups of first crushing rollers (101) and second crushing rollers (102) to fully crush the raw material, and the crushed black tea raw material enters the extraction cylinder (5); S2, inserting the insert plate (205) into the feed box (103), thereby sealing the feed box (103) through the insert plate (205), thereby preventing the black tea mixed liquid component from escaping through the opening of the feed box (103); S3, delivering the solvent liquid into the extraction cylinder (5) through the feed pipe (6), starting the first motor (7) to work, thereby driving the vibration plate (18) to vibrate at a high frequency through the first motor (7), so that the effective ingredients in the black tea raw material are fully dissolved in the solvent to form a mixed liquid; S4, delivering the mixed liquid to the inside of the concentration cylinder (11) through the first infusion pump (9) and the first delivery pipe (10), heating the mixed liquid in the concentration cylinder (11) through a plurality of electric heating plates (12), thereby evaporating water in the solution and concentrating the black tea mixed liquid; S5. The output end of the second motor (13) drives the second stirring shaft (19) to rotate, thereby driving the second stirring shaft (19) to drive the plurality of second stirring rods (20) to stir the black tea mixed liquid, thereby increasing the concentration speed of the mixed liquid. The second stirring shaft (19) drives the connecting plate (305) to rotate, and the connecting plate (305) drives the gear (302) to rotate around the central axis of the second stirring shaft (19), thereby driving the first stirring shaft (303) to rotate through the cooperation of the gear (302) and the gear ring (301), so that the first stirring shaft (303) rotates around the center of the second stirring shaft (19) and rotates on its own at the same time, thereby supplementing the stirring of the mixed liquid near the side wall of the concentration cylinder (11) inside the concentration cylinder (11) through the first stirring rod (304), and the concentrated liquid is transported to the freeze dryer (17) through the second infusion pump (16) for freeze drying.

2. The method for processing freeze-dried instant black tea according to claim 1, characterized in that: A crushing assembly (1) is arranged on the top of the extraction cylinder (5), and a sealing assembly (2) is arranged on the crushing assembly (1). A first bottom plate (8) is fixed below the extraction cylinder (5), and a first motor (7) is fixed on the top side of the first bottom plate (8). The output end of the first motor (7) extends into the interior of the extraction cylinder (5) and is fixed with a vibration plate (18). A feeding pipe (6) connected to the interior of the extraction cylinder (5) is fixed on the outer wall of the extraction cylinder (5). A concentration cylinder (11) is arranged on one side of the extraction cylinder (5). A first infusion pump (9) is arranged between the extraction cylinder (5) and the concentration cylinder (11). A first feeding pipe (10) connected to the interior of the concentration cylinder (11) and the extraction cylinder (5) is fixed on both the output end and the input end of the first infusion pump (9). A plurality of electric heating plates (12) distributed in an annular shape are fixed on the outer wall of the concentration cylinder (11). A second bottom plate (14) is fixed below the concentrating cylinder (11); a second stirring shaft (19) is rotatably connected to the center of the side wall at the bottom end of the concentrating cylinder (11); a second motor (13) is fixed to the top side of the second bottom plate (14); the output end of the second motor (13) is fixed to the bottom end of the second stirring shaft (19); a plurality of second stirring rods (20) distributed in an annular shape are fixed to the side of the second stirring shaft (19); an auxiliary stirring assembly (3) and a scraping assembly (4) located inside the concentrating cylinder (11) are connected to the second stirring shaft (19); a freeze dryer (17) is arranged on one side of the concentrating cylinder (11); a second infusion pump (16) is arranged between the concentrating cylinder (11) and the freeze dryer (17); a second delivery pipe (15) communicating with the freeze dryer (17) and the inside of the concentrating cylinder (11) is fixed to the output end and the input end of the second infusion pump (16).

3. The processing method of freeze-dried instant black tea according to claim 2, characterized in that: The pulverizing assembly (1) comprises a feed box (103) fixed to the top side of the extraction cylinder (5) and connected to the inside of the extraction cylinder (5); two mutually matching first pulverizing rollers (101) are rotatably connected to the side wall of the feed box (103); two mutually matching second pulverizing rollers (102) located below the first pulverizing rollers (101) are rotatably connected to the side wall of the feed box (103); gears are fixed to one end of the first pulverizing roller (101) and the second pulverizing roller (102); and a first motor (7) for driving the first pulverizing roller (101) and the second pulverizing roller (102) to rotate is fixed to the outer side wall of the feed box (103).

4. The method for processing freeze-dried instant black tea according to claim 3, characterized in that: A feed hopper (104) is fixed on the top of the feed box (103), and a guide plate (105) is fixed on the inner wall of the feed box (103). Two guide plates (105) are provided and the two guide plates (105) are symmetrically distributed.

5. The method for processing freeze-dried instant black tea according to claim 4, characterized in that: The closure assembly (2) comprises an insert plate (205) which is slidably inserted into a feed box (103), a first convex plate (201) being fixed on an outer side wall of the feed box (103), and a second convex plate (203) which is in contact with the first convex plate (201) being fixed on an outer side end of the insert plate (205).

6. The method for processing freeze-dried instant black tea according to claim 5, characterized in that: A second plug hole (207) is provided on the side of the second convex plate (203), a plug pin (204) is inserted into the second plug hole (207), and two first plug holes (202) for plugging with the plug pin (204) are provided on the side of the first convex plate (201).

7. The method for processing freeze-dried instant black tea according to claim 5, characterized in that: A handle (206) is fixed on the outer end of the plug board (205), and two handles (206) are provided and the two handles (206) are symmetrically distributed.

8. The method for processing freeze-dried instant black tea according to claim 2, characterized in that: The auxiliary stirring assembly (3) comprises a connecting plate (305) fixed on the top end of the second stirring shaft (19); the first stirring shaft (303) is rotatably connected to the end of the connecting plate (305) away from the second stirring shaft (19); a gear ring (301) is fixed on the inner side wall of the concentrator cylinder (11); a gear (302) meshing with the gear ring (301) is fixed on the top end of the first stirring shaft (303); and a plurality of first stirring rods (304) distributed in an annular shape are fixed on the side surface of the first stirring shaft (303).

9. The method for processing freeze-dried instant black tea according to claim 8, characterized in that: The scraper assembly (4) comprises a support rod (401) fixed on the side of the second stirring shaft (19), a rubber block (402) being fixed on one end of the support rod (401) away from the second stirring shaft (19), and a scraper plate (403) contacting the inside of the concentrating cylinder (11) being fixed on one end of the rubber block (402) away from the support rod (401).

10. The method for processing freeze-dried instant black tea according to claim 2, characterized in that: A plurality of third stirring rods (21) are fixed on the second stirring rod (20).

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