CN108991200B

CN108991200B - Highland barley milk tea production system

Info

Publication number: CN108991200B
Application number: CN201810904614.0A
Authority: CN
Inventors: 管新飞
Original assignee: Tibet Zangyuan Highland Barley Technology Co ltd
Current assignee: Tibet Zangyuan Highland Barley Technology Co ltd
Priority date: 2018-08-09
Filing date: 2018-08-09
Publication date: 2021-10-15
Anticipated expiration: 2038-08-09
Also published as: CN108991200A

Abstract

The invention relates to a highland barley milk tea production system, which belongs to the technical field of food engineering and comprises the following steps: pretreatment → solid state fermentation → primary filtration → liquid state fermentation → secondary filtration → sterilization → product filling. The technical scheme adopts a process combining solid fermentation and liquid fermentation to prepare the highland barley ferment, adopts a liquid fermentation tank with a unique structural design to well inhibit bubbles generated in the fermentation process, designs an oblique flow control pipe to quantitatively control the addition of the defoaming agent, ensures the smooth fermentation process, can be directly brewed and drunk as a tea product, can also be mixed with other components to form a milk tea product, and has wide market prospect.

Description

Highland barley milk tea production system

Technical Field

The invention relates to a highland barley milk tea production system, and belongs to the technical field of food engineering.

Background

The highland barley is a cereal crop of the genus barley of the family Gramineae, and is also called naked barley, highland barley and rice barley because the inner and outer glumes are separated and the grains are naked. Mainly produced in Tibet, Qinghai, Sichuan and Yunnan provinces in China, and is the main food for Tibetan people. The highland barley has about 3500 years of history of being planted on the Qinghai-Tibet plateau, extends from the material culture to the mental culture field, and forms highland barley culture with rich connotation and extremely rich national characteristics on the Qinghai-Tibet plateau. Has wide medicinal and nutritional value, and has introduced highland barley products such as highland barley fine dried noodles, highland barley steamed bread, highland barley nutritional powder, etc.

The highland barley contains vitamins far higher than fruits such as grapes, is rich in proteins, fat, carbohydrates, starch, calcium, phosphorus, iron and other trace elements, contains various amino acids and dietary fibers, and has the functions of clearing intestines, regulating blood sugar and enhancing immunity. The protein content of the highland barley is 1.6 to 2.2 times higher than that of the rice and the flour, the fat content is 2 to 2.5 times higher than that of the rice and the flour, and the linoleic acid in the highland barley fat component has more content and is easy to be absorbed by a human body, so that the highland barley tea has the function of reducing cholesterol in blood of the human body. The highland barley contains less sugar and is an ideal food for diabetics.

The highland barley milk tea is prepared by using highland barley grains which are byproducts of deep processing of highland barley by the company, the nutritive value and the health care function of highland barley are searched, the purposes of changing waste into valuable and improving the added value of highland barley are achieved, the traditional fermentation process is combined with modern equipment, in order to meet regional production requirements, the production chain of products is prolonged, the resource advantages are fully exerted, the agricultural industrial structure and the development economy of scale are met, and the local economic development is driven.

Disclosure of Invention

In order to solve the problems in the prior art, the invention provides a highland barley milk tea production system, which adopts a fermentation method combining solid fermentation and liquid fermentation to obtain a final highland barley milk tea product. The specific technical scheme is as follows:

the highland barley milk tea production system is characterized by comprising the following steps: pretreatment → solid state fermentation → primary filtration → liquid state fermentation → secondary filtration → sterilization → product filling;

the liquid fermentation step is carried out in a liquid fermentation tank, the liquid fermentation tank comprises a cover body, a sleeve is arranged below the cover body, an omega-shaped drainage cover is fixedly connected below the sleeve, the drainage cover is provided with an arc-shaped inner wall, the bottom of the arc-shaped inner wall extends towards the inner wall of the liquid fermentation tank to form a connecting plate, and the connecting plate is fixedly connected to the inner side surface of the liquid fermentation tank; the liquid fermentation tank is characterized in that a driving motor is arranged on the cover body, a transmission shaft extending into the liquid fermentation tank is arranged below the driving motor, a rotating shaft assembly is fixedly connected below the transmission shaft, fan blades are arranged on the rotating shaft assembly and positioned in the drainage cover, a stirring paddle is arranged at the bottom of the rotating shaft assembly, a liquid storage container is arranged between the rotating shaft assembly and the stirring paddle, a liquid storage cavity is formed in the liquid storage container, an antifoaming agent is stored in the liquid storage cavity, a fluid channel communicated with the liquid storage cavity is formed in the stirring paddle, and a plurality of capillary tubes communicated with the fluid channel are arranged on the surface of the stirring paddle;

an antifoaming agent adding tank is arranged on the outer side of the liquid fermentation tank, an antifoaming agent adding pipeline is led out from the bottom end of the interior of the antifoaming agent adding tank to the outside of the tank, an antifoaming agent temporary storage cavity is formed between the sleeve and the transmission shaft, one end, far away from the antifoaming agent adding tank, of the antifoaming agent adding pipeline extends into the antifoaming agent temporary storage cavity, an in-shaft conveying pipeline is arranged in the transmission shaft, one end of the in-shaft conveying pipeline is communicated with the antifoaming agent temporary storage cavity, and the other end of the in-shaft conveying pipeline extends into the rotating shaft assembly and is finally communicated with the liquid storage cavity;

an inner supporting frame is arranged on the lower side in the liquid fermentation tank, a buffering supporting assembly is arranged between the inner supporting frame and the stirring paddle, a piston cavity is formed in the buffering supporting assembly, a piston rod is arranged in the piston cavity, an elastic component is arranged below the piston rod, a fixed seat is arranged above the piston rod, a supporting bearing is arranged between the fixed seat and the stirring paddle, an elastic corrugated sealing sleeve is arranged between the fixed seat and the buffering supporting assembly, and a pressure conveying pipeline which is communicated with each other is arranged between the bottom of the piston cavity and the defoaming agent additional tank;

the stirring paddle middle section is connected with an oblique flow control tube, the oblique flow control tube is provided with a control tube inlet and a control tube outlet which are communicated with a fluid channel, a counterweight plug is arranged in the oblique flow control tube, a control tube seal is arranged at a position, close to the control tube inlet, on the counterweight plug, a counterweight plug spring is arranged between the counterweight plug and the control tube outlet, a counterweight plug annular groove is circumferentially formed in the counterweight plug, soft rubber is arranged in the counterweight plug annular groove, a microflow guide tube communicated with the oblique flow control tube is arranged on the lateral surface of the oblique flow control tube, the microflow guide tube is provided with a microflow guide tube inlet and a microflow guide tube outlet, when the stirring paddle rotates, the counterweight plug annular groove carries the soft rubber to slide along the inner wall of the oblique flow control tube and gradually seals the microflow guide tube outlet, when the stirring paddle stops rotating, the counterweight plug annular groove carries the soft rubber to slide along the inner wall of the oblique flow control tube and gradually opens the microflow guide tube outlet, And at the moment, the control tube seal is gradually attached to the inner side of the control tube inlet to realize sealing, and the capillary tubes on the stirring paddle are distributed at one end close to the control tube outlet.

As an improvement of the technical scheme, two ends of the oblique flow control pipe extend outwards to form control pipe flanges, and the control pipe flanges are fixedly connected with the stirring paddle through locking bolts.

As an improvement of the above technical solution, the inner wall of the oblique flow control pipe is provided with a control pipe inner protrusion, and the counterweight plug is provided with a counterweight plug protrusion matched with the control pipe inner protrusion.

As an improvement of the technical scheme, the transmission shaft extends into the sleeve, and the transmission shaft is connected with the sleeve through a bearing.

As an improvement of the technical scheme, the connecting plate extends to one side of the rotating shaft assembly to form a guide plate, a through hole for the rotating shaft assembly to pass through is formed in the center of the guide plate, a plurality of guide holes for the foam to pass through are formed in the guide plate in a penetrating mode, and the fan blades rotate along with the rotating shaft assembly and throw liquid drops obtained after the foam is ground to the surface of the arc-shaped inner wall.

As an improvement of the technical scheme, a top opening is formed in the upper portion of the drainage cover, and the lower portion of the top opening corresponds to the fan blades.

As an improvement of the technical scheme, the drainage cover is provided with a locking buckle.

As an improvement of the technical scheme, a thread groove is formed in the lower end of the rotating shaft assembly, a threaded connecting end is arranged on the upper side of the liquid storage container, the thread groove is in threaded fit with the threaded connecting end, and a liquid adding hole communicated with the liquid storage cavity is formed in the threaded connecting end.

As an improvement of the technical scheme, a cavity wall hole communicated with the fluid channel is formed in the inner wall of the liquid storage cavity, and the liquid level of the defoaming agent is lower than that of the cavity wall hole when the rotating shaft assembly is static.

As an improvement of the technical scheme, an external pressurizing pipeline is further arranged on the defoaming agent additional tank.

According to the technical scheme, the highland barley ferment is prepared by adopting a process combining solid fermentation and liquid fermentation, bubbles generated in the fermentation process are well inhibited by adopting a liquid fermentation tank with a unique structural design, the addition of the defoaming agent is quantitatively controlled by designing the oblique flow control pipe, the smooth fermentation process is ensured, the prepared highland barley ferment can be directly brewed and drunk as a tea product, and can also be mixed with other components to form a milk tea product, so that the market prospect is wide.

Drawings

Fig. 1 is a schematic diagram of a production line of the highland barley milk tea production system.

FIG. 2 is a schematic view of a liquid fermentation tank in the liquid fermentation step of the present invention.

FIG. 3 is a schematic diagram of the components of the liquid fermentation tank near the drainage hood.

FIG. 4 is a schematic view of the internal structure of a liquid storage container in a liquid fermentation tank according to the present invention.

FIG. 5 is a schematic structural diagram of another embodiment of a liquid fermentation tank in the present invention.

FIG. 6 is a schematic diagram of the components in the vicinity of the temporary defoaming agent storage chamber in the liquid fermentation tank according to the present invention.

FIG. 7 is a schematic view of the components of the liquid fermentation tank of the present invention in the vicinity of the buffer support assembly.

FIG. 8 is a schematic view of the internal structure of the inclined flow control tube in the liquid fermentation tank of the present invention.

Detailed Description

The invention provides a highland barley milk tea production system, which comprises the following steps: pretreatment → solid state fermentation → primary filtration → liquid state fermentation → secondary filtration → sterilization → product filling;

in the pretreatment step, crushing highland barley grains, adding glucose, adding a certain amount of water, adding saccharifying enzyme, saccharifying at low temperature, adjusting the sugar degree to 8-15%, wherein the material-water ratio is 3: 1-8: 1, performing aseptic treatment on the raw material components in the step, crushing the highland barley grains by using a roller type crusher, and stirring and uniformly mixing the crushed highland barley grains to obtain a pretreatment mixture, wherein the smaller the powder is, the better the powder is;

in the solid fermentation step, inoculating yeast strains to the pretreated mixture, wherein the inoculation proportion of the yeast strains is 1 per mill-4%, uniformly stirring, and obtaining a solid fermentation product after solid fermentation, wherein the solid fermentation temperature is 27-33 ℃, and the fermentation time is 5-15 days;

in the primary filtering step, diluting the solid fermentation product, pulping, centrifuging and filtering to obtain primary filtering supernatant;

in the step of liquid fermentation, inoculating probiotic strains into the primary filtered supernatant, adding cold boiled water, uniformly stirring, and fermenting at the temperature of 20-30 ℃ for 1-7 days to obtain a liquid fermentation product, wherein the probiotic in the step can be a mixed strain composed of lactic acid bacteria, yeast and mould;

in the secondary filtering step, the liquid fermentation product is clarified after being subjected to filter pressing, wherein the clarification in the step aims to precipitate part of macromolecular substances such as protein, starch and the like which are not completely reacted in the fermentation process, and then highland barley enzyme liquid is obtained;

after the sterilization step, the product is filled, the product can be prepared into a beverage or concentrated and dried to obtain highland barley ferment powder, and the highland barley ferment powder can be directly used as a tea product for brewing and drinking and can also be mixed with other components to form milk tea products with various tastes.

As shown in fig. 1, the present invention further provides a highland barley ferment production line matched with the highland barley ferment production process, which comprises a workbench 10, a solid state fermentation tank 30, a liquid state fermentation tank 40 and an auxiliary material adding tank 50. The workbench 10 is provided with a plurality of raw material storage tanks 20, the raw material storage tanks 20 can be used for storing and pretreating highland barley grains and other raw materials in an earlier stage, and the solid-state fermentation tank 30, the liquid-state fermentation tank 40 and the auxiliary material adding tank 50 are connected through a liquid material conveying pipeline 43. In this production line, one solid-state fermenter 30 may be used in combination with two or more liquid fermenters 40 in one production line, since the solid-state fermentation period is longer than that of the liquid fermentation.

As shown in fig. 2, fig. 3, and fig. 4, fig. 2 is a schematic structural diagram of the liquid fermentation tank 40, the liquid fermentation tank 40 includes a cover body 41, a sleeve 411 is disposed below the cover body 41, an "Ω" shaped drainage cover 46 is fixedly connected below the sleeve 411, the drainage cover 46 has an arc inner wall 464, a connecting plate 463 is formed by extending the bottom of the arc inner wall 464 to the inner wall of the liquid fermentation tank 40, and the connecting plate 463 is fixedly connected to the inner side surface of the liquid fermentation tank 40; be provided with driving motor 45 on lid 41, driving motor 45 below is provided with the transmission shaft 451 that stretches into liquid fermentation tank 40 inside, transmission shaft 451 below fixedly connected with rotating shaft subassembly 47, the position that lies in drainage cover 46 inside on rotating shaft subassembly 47 is provided with the flabellum 471, rotating shaft subassembly 47 bottom is provided with stirring rake 49, rotating shaft subassembly 47 bottom is provided with between the stirring rake 49 and is provided with stock solution container 48, stock solution chamber 481 has in the stock solution container 48, stock solution chamber 481 has the defoaming agent 482 in the storage, be provided with the fluid passage 491 with stock solution chamber 481 intercommunication in the stirring rake 49, stirring rake 49 surface is provided with the capillary 492 that a plurality of fluid passages 491 communicate.

The bottom of the liquid fermentation tank 40 is connected with a liquid drainage pipeline 44, and the main structure of the liquid fermentation tank 40 is supported on a bracket 42.

When the driving motor 45 rotates, the transmission shaft 451 drives the rotating shaft assembly 47, the transmission shaft 451 extends into the sleeve 411, the transmission shaft 451 is connected with the sleeve 411 through a bearing, the sleeve 411 is fixedly connected with the drainage cover 46, the fan blade 471 also rotates along with the rotation of the rotating shaft assembly 47, and the drainage cover 46 covers the outer side of the fan blade 471.

During the liquid fermentation, as the rotating shaft assembly 47 rotates and stirs, foam is generated inside the liquid fermentation tank 40, and the foam causes many disadvantages such as reduction of the charging factor of the fermentation tank, reduction of the oxygen transfer system, and the like. When the foam is too much, the influence is more serious, a large amount of liquid escapes, fermentation liquid escapes from an exhaust pipeline or a shaft seal to increase the possibility of bacteria contamination, and the like, and when the foam is serious, aeration and stirring cannot be carried out, and the respiration of thalli is blocked, so that abnormal metabolism or thalli autolysis is caused. Because whole liquid fermentation tank 40 generally is in inclosed state, the existence of more foam can reduce fermentation efficiency, the structure of a mechanical defoaming has been constituteed to drainage cover 46 and flabellum 471 of this scheme adoption, rotate through flabellum 471, inhale in drainage cover 46 with the bubble of liquid fermentation tank 40 liquid level, then smash the bubble through flabellum 471, the broken liquid drop of bubble gets rid of and falls on arc inner wall 464, in falling liquid fermentation tank 40 along with arc inner wall 464 subsurface, reach the function of defoaming.

Meanwhile, in the fermentation process, the bubbles are also present in the mixed liquid of the liquid fermentation tank 40 or adhered to the inner wall of the liquid fermentation tank 40, the bubbles are not large in volume, but the bubbles are stable in shape, and the bubbles can deteriorate the uniformity of the mixed liquid along with the accumulation of the fermentation time, so that the problem of uneven fermentation is caused. For this reason, it is also necessary to eliminate this portion of bubbles.

In order to solve the problem of bubbles in the liquid, the liquid storage container 48 and the stirring paddle 49 are connected, wherein the defoaming agent 482 is stored in the liquid storage container 48, and the defoaming agent 482 can be mineral oil type defoaming agent, silicone type defoaming agent or polyether type defoaming agent in the prior art. Mineral oil type defoamers generally consist of a carrier, an active agent, and the like. The carrier is a substance with low surface tension, and has the functions of carrying and diluting, and the common carrier is water, fatty alcohol and the like; the active agent is effective in inhibiting and eliminating foam, and is usually wax, fatty amide, fat, etc. The silicone-based antifoaming agent generally includes polydimethylsiloxane and the like. The organic silicon defoaming agent has poor solubility, and has the characteristics of high defoaming speed and good foam inhibition at normal temperature, but layering at high temperature, low defoaming speed, poor foam inhibition and the like. The polyether defoaming agent includes polyoxypropylene ethylene oxide glyceryl ether and the like. The polyether defoamer has the characteristics of long foam inhibition time, good effect, high defoaming speed, good thermal stability and the like.

The inner wall of the liquid storage cavity 481 is provided with a cavity wall hole 483 communicated with the fluid channel 491, the liquid level of the defoaming agent 482 is lower than the cavity wall hole 483 when the rotating shaft assembly 47 is static, and when the rotating shaft assembly 47 rotates, the defoaming agent 482 in the liquid storage container 48 enters the fluid channel 491 of the stirring paddle 49. When the rotating shaft assembly 47 rotates rapidly, the defoaming agent in the fluid passage 491 enters the liquid fermentation tank 40 through the capillary 492, the defoaming agent is dispersed to various positions in the tank along with the stirring, when the defoaming agent contacts with bubbles, the defoaming agent is dissolved into the foam liquid, the surface tension of the foam is obviously reduced, because the substances generally have low solubility to water, the reduction of the surface tension is limited to the local part of the foam, the surface tension around the foam is almost not changed, and the part with the reduced surface tension is strongly pulled and extended all around, finally is broken, so that the purpose of defoaming is achieved.

An alternative embodiment of the liquid fermenter 40 can be designed on the basis of the above-described solution.

As shown in fig. 5 and 6, the anti-foaming agent 482 stored in the liquid storage container 48 in the above-mentioned technical solution can be supplemented by a method that requires the addition of an anti-foaming agent addition tank 60 and the design of a corresponding charging pipeline structure. The concrete structure is as follows: the outer side of the liquid fermentation tank 40 is provided with an additional defoaming agent tank 60, the additional defoaming agent tank 60 is further provided with an external pressurizing pipeline 61, an additional defoaming agent pipeline 63 is led out from the bottom end inside the additional defoaming agent tank 60 to the outside of the tank, a temporary defoaming agent storage cavity 412 is formed between the sleeve 411 and the transmission shaft 451, one end, far away from the additional defoaming agent tank 60, of the additional defoaming agent pipeline 63 extends into the temporary defoaming agent storage cavity 412, an in-shaft conveying pipeline 452 is arranged in the transmission shaft 451, one end of the in-shaft conveying pipeline 452 is communicated with the temporary defoaming agent storage cavity 412, and the other end of the in-shaft conveying pipeline 452 extends into the rotating shaft assembly 47 and is finally communicated with the liquid storage cavity 481.

The liquid feeding pipeline structure sequentially passes through the following parts according to the flowing direction of fluid: the defoaming agent temporary storage cavity 412 → the in-shaft conveying pipeline 452 → the liquid storage cavity 481 is surrounded by the sleeve 411, the sleeve 411 is connected with the transmission shaft 451 through a sealing bearing assembly, and the defoaming agent is temporarily stored in the defoaming agent temporary storage cavity 412 and conveyed into the liquid storage cavity 481 through the in-shaft conveying pipeline 452.

As shown in fig. 7, in order to improve the stability of the rotating shaft assembly 47 and the stirring paddle 49 during rotation, the present invention further designs a buffering support assembly 70, an inner support frame 421 is disposed at the lower side inside the liquid fermentation tank 40, the buffering support assembly 70 is disposed between the inner support frame 421 and the stirring paddle 49, and the specific structure of the buffering support assembly 70 includes: the defoaming agent filling machine comprises a piston cavity 71, a piston rod 73 is arranged in the piston cavity 71, an elastic part 72 is arranged below the piston rod 73, a fixed seat 731 is arranged above the piston rod 73, a supporting bearing 75 is arranged between the fixed seat 731 and a stirring paddle 49, an elastic corrugated sealing sleeve 74 is arranged between the fixed seat 731 and a buffering supporting component 70, and a pressure feeding pipeline 62 which is communicated with each other is arranged between the bottom of the piston cavity 71 and a defoaming agent addition tank 60.

The above-mentioned buffering support assembly 70 has three functions: firstly, the buffering support assembly 70 can improve the stability of the rotation shaft assembly 47 and the stirring paddle 49 during rotation, because the stirring paddle 49 can rotate relative to the fixed seat 731 in the support bearing 75 due to the existence of the support bearing 75; secondly, the piston cavity 71 and the piston rod 73 are designed to be capable of generating axial displacement in axial movement when the rotating shaft assembly 47 and the stirring paddle 49 rotate, and the piston rod 73 can move in the piston cavity 71 when the displacement is generated, so that a buffering effect is achieved; thirdly, when the piston rod 73 can move in the piston cavity 71, the pressure value in the piston cavity 71 changes, when the pressure increases, that is, the piston rod 73 moves downwards, the pressure enters the defoaming agent applying tank 60 through the pressure feeding pipeline 62, the defoaming agent stored in the defoaming agent applying tank 60 is pressed into the defoaming agent applying pipeline 63, and finally the defoaming agent is pressed into the liquid state fermentation tank 40.

Because the defoaming agent is continuously thrown out of the capillary 492 during the rotation of the stirring paddle 49, the dosage of the defoaming agent is not easy to control, and therefore, the application also designs a defoaming agent flow control method which is mainly realized by the inclined flow control tube 90.

As shown in fig. 8, an oblique flow control tube 90 is connected to the middle section of the stirring paddle 49, the oblique flow control tube 90 has a control tube inlet 903 and a control tube outlet 904 communicated with the fluid passage 491, a counterweight plug 91 is disposed in the oblique flow control tube 90, a control tube seal 911 is disposed on the counterweight plug 91 near the control tube inlet 903, a counterweight plug spring 93 is disposed between the counterweight plug 91 and the control tube outlet 904, a counterweight plug annular groove 913 is disposed on the circumference of the counterweight plug 91, a soft rubber 92 is disposed in the counterweight plug annular groove 913, a microflow conduit 901 communicated with the inside of the oblique flow control tube 90 is disposed on the side of the oblique flow control tube 90, the microflow conduit 901 has a microflow conduit inlet 901a and a microflow conduit outlet 901b, when the stirring paddle 49 rotates, the microflow conduit outlet 901b is gradually closed by the counterweight plug annular groove 913 carrying the soft rubber 92 along the inner wall of the oblique flow control tube 90, when the stirring paddle 49 stops rotating, the counterweight plug annular groove 913 carries the soft rubber 92 to slide along the inner wall of the oblique flow control tube 90 and gradually opens the microflow conduit outlet 901b, and at the moment, the control tube seal 911 gradually fits the inner side of the control tube inlet 903 to realize sealing, and the capillary tubes 492 on the stirring paddle 49 are distributed at one end close to the control tube outlet 904.

The counterweight plug 91 is made of steel, and the defoaming agent flow control principle of the oblique flow control tube 90 in the above scheme is that when the stirring paddle 49 rotates, the counterweight plug 91 will move obliquely downward along the oblique flow control tube 90 due to inertia, and further compress the counterweight plug spring 93, along with the movement of the counterweight plug 91, the soft rubber 92 will gradually close the outlet 901b of the microflow conduit, the control tube seal 911 will gradually open the inlet 903 of the control tube along with the movement of the counterweight plug 91, at this time, the defoaming agent in the fluid channel 491 of the stirring paddle 49 will enter between the counterweight plug 91 and the inlet 903 of the control tube through the inlet 903 of the control tube, and because the outlet 901b of the microflow conduit is in a closed state, at this time, the defoaming agent cannot continuously flow downward through the microflow conduit 901. When the rotation speed of the stirring paddle 49 is reduced or the rotation is stopped, the counterweight plug 91 will move obliquely upward along the oblique flow control pipe 90 due to the elastic force of the counterweight plug spring 93 and return to the initial state, the soft rubber 92 will gradually open the micro-flow conduit outlet 901b along with the movement of the counterweight plug 91, the control pipe seal 911 also gradually closes the control pipe inlet 903 along with the movement of the counterweight plug 91, and at this time, the defoaming agent between the counterweight plug 91 and the control pipe inlet 903 will continue to flow to the position of the control pipe outlet 904 through the micro-flow conduit 901, because the capillary 492 is distributed at the end close to the control pipe outlet 904, and the defoaming agent continuing to flow downward enters into the liquid fermentation tank 40 through the capillary 492. The design can control the motion state of the counterweight plug 91 by adjusting the rotating speed of the stirring paddle 49, so that the quantitative addition of the defoaming agent is realized, and the consumption of the defoaming agent is less.

Moreover, the inclined flow control tube 90 with the structure of the counterweight plug 91 also has an effect that when the counterweight plug 91 moves obliquely downward along with the rotation of the stirring paddle 49, the counterweight plug 91 is tightly attached to the inner wall of the inclined flow control tube 90, and negative pressure is generated inside the inclined flow control tube 90, so that the defoaming agent can enter the liquid fermentation tank 40 from the defoaming agent adding tank 60.

The two ends of the oblique flow control pipe 90 extend outwards to form control pipe flanges 905, the control pipe flanges 905 are fixedly connected with the stirring paddles 49 through locking bolts 906, and the control pipe flanges 905 are required to be connected with the stirring paddles 49 in a sealing mode. The inner wall of the oblique flow control pipe 90 is provided with a control pipe inner protrusion 902, the counterweight plug 91 is provided with a counterweight plug protrusion 912 matched with the control pipe inner protrusion 902, and the control pipe inner protrusion 902 is used for limiting the moving track of the counterweight plug 91.

Of course, in addition to the method of feeding the defoaming agent under pressure through the pressure-feed line 62, the defoaming agent in the defoaming agent application tank 60 may be directly fed under pressure through the external pressurizing line 61. When the defoaming agent addition tank 60 is pressurized from the external pressurizing pipe 61 by, for example, an adding device, there may be a flow of air entering the piston chamber 71 through the pressurizing pipe 62, which pushes the piston rod 73, thereby pressing the piston rod 73 to the position of the support bearing 75, and further improving the stability of the rotating shaft assembly 47 and the stirring paddle 49 during rotation.

The elastic bellows seal 74 is capable of ensuring that the piston rod 73 and the piston chamber 71 are in an airtight state, and the elastic bellows seal 74 has a certain elastic deformation capacity and can deform along with the piston movement of the piston rod 73.

Further, connecting plate 463 extends to rotation axis subassembly 47 one side and forms guide plate 461, and the through-hole 467 that supplies rotation axis subassembly 47 to pass is seted up at the guide plate 461 center, and the guide plate 461 is gone up to run through and is had a plurality of water conservancy diversion holes 462 that supply the foam to pass, and flabellum 471 rotates along with rotation axis subassembly 47, and throws the liquid drop after the foam grinding to arc inner wall 464 surface. Through-hole 467's effect is dodge the rotation orbit of axis of rotation subassembly 47 among this preferred scheme, and the bubble that can adsorb the liquid level to a certain extent of guide plate 461 because the bubble of liquid level floats on the liquid level, therefore the existence of guide plate 461 can be attached to for the bubble, makes the liquid level bubble concentrate to improve the mechanical defoaming efficiency of flabellum 471.

Further, a top opening 465 is formed above the drainage cover 46, the lower portion of the top opening 465 corresponds to the fan blade 471, and a locking buckle 466 is arranged on the drainage cover 46. The top opening 465 is used to form an air flow channel above and below the flow-guiding hood 46, so as to avoid turbulence in the flow-guiding hood 46 when the fan blade 471 rotates.

The above solution for the improvement of the production system focuses on the part of the liquid fermentation tank 40, which provides the liquid fermentation tank 40 to mainly solve the problem of bubbles generated during the fermentation process. The device comprises a bubble inhibition structure designed above and below the liquid level in the fermentation tank and a defoaming agent quantitative adding structure designed aiming at the bubble inhibition structure. The structure of the oblique flow control pipe is a defoaming agent quantitative adding structure, the adding amount of the defoaming agent is selectively controlled, the flow control in the oblique flow control pipe is related to the rotation state of the stirring paddle, and the monitoring system is not required to specially control the flow control. Rely on stirring rake 49 to rotate alone and make counter weight stopper 91 take place the skew, and then the selective joining of control defoaming agent along with stirring rake 49 rotation state difference, as long as monitor a parameter of stirring speed can realize that rotational speed and defoaming agent selectivity join two actions, convenient and practical.

In the present invention, unless otherwise expressly stated or limited, the terms "disposed," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the present invention, the multicomponent solution is mixed in mass percent unless otherwise specified.

Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. The highland barley milk tea production system is characterized by comprising the following steps: pretreatment → solid state fermentation → primary filtration → liquid state fermentation → secondary filtration → sterilization → product filling;

the liquid fermentation step is carried out in a liquid fermentation tank (40), the liquid fermentation tank (40) comprises a cover body (41), a sleeve (411) is arranged below the cover body (41), an omega-shaped drainage cover (46) is fixedly connected below the sleeve (411), the drainage cover (46) is provided with an arc-shaped inner wall (464), the bottom of the arc-shaped inner wall (464) extends towards the inner wall of the liquid fermentation tank (40) to form a connecting plate (463), and the connecting plate (463) is fixedly connected to the inner side surface of the liquid fermentation tank (40); a driving motor (45) is arranged on the cover body (41), a transmission shaft (451) extending into the liquid fermentation tank (40) is arranged below the driving motor (45), a rotating shaft assembly (47) is fixedly connected below the transmission shaft (451), fan blades (471) are arranged on the rotating shaft assembly (47) at the position inside the drainage cover (46), a stirring paddle (49) is arranged at the bottom of the rotating shaft assembly (47), a liquid storage container (48) is arranged between the rotating shaft assembly (47) and the stirring paddle (49), the liquid storage container (48) is internally provided with a liquid storage cavity (481), the liquid storage cavity (481) is internally stored with an antifoaming agent (482), a fluid channel (491) communicated with the liquid storage cavity (481) is arranged in the stirring paddle (49), the surface of the stirring paddle (49) is provided with a plurality of capillary tubes (492) communicated with the fluid channel (491);

an antifoaming agent adding tank (60) is arranged on the outer side of the liquid fermentation tank (40), an antifoaming agent adding pipeline (63) is led out from the bottom end inside the antifoaming agent adding tank (60) to the outside of the tank, an antifoaming agent temporary storage cavity (412) is formed between the sleeve (411) and the transmission shaft (451), one end, far away from the antifoaming agent adding tank (60), of the antifoaming agent adding pipeline (63) extends into the antifoaming agent temporary storage cavity (412), an in-shaft conveying pipeline (452) is arranged in the transmission shaft (451), one end of the in-shaft conveying pipeline (452) is communicated with the antifoaming agent temporary storage cavity (412), and the other end of the in-shaft conveying pipeline (452) extends into the rotating shaft assembly (47) and is finally communicated with the liquid storage cavity (481);

an internal support frame (421) is arranged on the lower side in the liquid fermentation tank (40), a buffering support assembly (70) is arranged between the internal support frame (421) and the stirring paddle (49), a piston cavity (71) is arranged in the buffering support assembly (70), a piston rod (73) is arranged in the piston cavity (71), an elastic part (72) is arranged below the piston rod (73), a fixed seat (731) is arranged above the piston rod (73), a support bearing (75) is arranged between the fixed seat (731) and the stirring paddle (49), an elastic corrugated sealing sleeve (74) is arranged between the fixed seat (731) and the buffering support assembly (70), and a pressure feed pipeline (62) which is communicated with each other is arranged between the bottom of the piston cavity (71) and the defoaming agent additional tank (60);

an oblique flow control pipe (90) is connected to the middle section of the stirring paddle (49), the oblique flow control pipe (90) is provided with a control pipe inlet (903) and a control pipe outlet (904) which are communicated with the fluid channel (491), a counterweight plug (91) is arranged in the oblique flow control pipe (90), a control pipe seal (911) is arranged on the counterweight plug (91) close to the control pipe inlet (903), a counterweight plug spring (93) is arranged between the counterweight plug (91) and the control pipe outlet (904), a counterweight plug annular groove (913) is circumferentially arranged on the counterweight plug (91), soft rubber (92) is arranged in the counterweight plug annular groove (913), a microflow conduit (901) communicated with the interior of the oblique flow control pipe (90) is arranged on the side surface of the oblique flow control pipe (90), and the microflow conduit (901) is provided with a microflow conduit inlet (901a) and a microflow conduit outlet (901b), when the stirring paddle (49) rotates, the counterweight plug annular groove (913) carries soft rubber (92) to slide along the inner wall of the inclined flow control tube (90) and gradually seals the microfluidic conduit outlet (901b), when the stirring paddle (49) stops rotating, the counterweight plug annular groove (913) carries soft rubber (92) to slide along the inner wall of the inclined flow control tube (90) and gradually opens the microfluidic conduit outlet (901b), and at the moment, the control tube seal (911) is gradually attached to the inner side of the control tube inlet (903) to realize sealing, and capillary tubes (492) on the stirring paddle (49) are distributed at one end close to the control tube outlet (904).

2. The highland barley milk tea production system according to claim 1, wherein both ends of the oblique flow control pipe (90) extend outwards to form a control pipe flange (905), and the control pipe flange (905) is fixedly connected with the stirring paddle (49) through a locking bolt (906).

3. The highland barley milk tea production system according to claim 1, wherein the inner wall of the oblique flow control pipe (90) is provided with a control pipe inner protrusion (902), and the counterweight plug (91) is provided with a counterweight plug protrusion (912) matched with the control pipe inner protrusion (902).

4. The highland barley milk tea production system according to claim 1, wherein the transmission shaft (451) extends into the sleeve (411), and the transmission shaft (451) is connected with the sleeve (411) through a bearing.

5. The highland barley milk tea production system according to claim 1, wherein the connecting plate (463) extends to one side of the rotating shaft assembly (47) to form a guide plate (461), a through hole (467) for the rotating shaft assembly (47) to pass through is formed in the center of the guide plate (461), a plurality of guide holes (462) for the foam to pass through are formed in the guide plate (461), and the fan blades (471) rotate along with the rotating shaft assembly (47) and throw the liquid drops after the foam is ground to the surface of the arc-shaped inner wall (464).

6. The highland barley milk tea production system according to claim 5, wherein a top opening (465) is formed above the drainage cover (46), and the lower part of the top opening (465) corresponds to the fan blade (471).

7. The highland barley milk tea production system according to claim 6, wherein the drainage cover (46) is provided with a locking buckle (466).

8. The highland barley milk tea production system according to claim 1, wherein a thread groove (472) is formed at the lower end of the rotating shaft assembly (47), a thread connecting end is arranged at the upper side of the liquid storage container (48), the thread groove (472) is in thread fit with the thread connecting end, and a liquid charging hole communicated with the liquid storage cavity (481) is formed in the thread connecting end.

9. The highland barley milk tea production system according to claim 8, wherein the inner wall of the liquid storage cavity (481) is provided with a cavity wall hole (483) communicated with the fluid channel (491), and the liquid level of the defoaming agent (482) is lower than the cavity wall hole (483) when the rotating shaft assembly (47) is at rest.

10. The highland barley milk tea production system according to claim 1, wherein an external pressurizing pipeline (61) is further arranged on the defoaming agent adding tank (60).