CN212971519U

CN212971519U - Production system of jasmine tea

Info

Publication number: CN212971519U
Application number: CN202021688737.4U
Authority: CN
Inventors: 芦坤; 曹卫; 吴雪原; 张根; 穆永超; 张勇; 赵和涛
Original assignee: Huangshan Xiao Guan Tea Co ltd
Current assignee: Huangshan Xiao Guan Tea Co ltd
Priority date: 2020-08-13
Filing date: 2020-08-13
Publication date: 2021-04-16
Anticipated expiration: 2030-08-13

Abstract

The utility model discloses a jasmine tea's production system, tremble the sieve machine, spread out the flower machine, double-deck sieve machine, electric heat drying-machine, mix the flower machine, intelligent basement fragrance machine, tremble the sieve and carry tea machine and microwave hot air drying-machine, photoelectricity look selection machine, anion wind shaker, microwave light wave sterilization machine, intelligent packagine machine including the three-layer that sets gradually. Three-layer trembles the sieve machine through this system, the double-deck sieve machine of trembling, trembles the sieve and carries tea machine, photoelectricity look selection machine, anion wind shaker, microwave light wave sterilization machine, intelligent packagine machine's cooperation and use, guarantees the cleanliness and the fresh-keeping degree of tealeaves. Through the cooperation of the three-layer shaking and screening machine, the flower spreading machine and the double-layer shaking and screening machine, the grading of the jasmine is realized, the quality of the cultivated flower is ensured, the scenting effect is ensured through the scenting of the intelligent scenting machine, and the using amount of the jasmine is reduced, so that the jasmine tea with good fragrance and high cleanliness of the jasmine can be obtained through the system.

Description

Production system of jasmine tea

Technical Field

The utility model belongs to the technical field of the tea processing technique and specifically relates to a production system of jasmine tea is related to.

Background

The production history of the jasmine tea has been over 1000 years so far, and the jasmine tea is traditional popular drinking tea in China and is also very popular tea in China because of the effects of soothing the nerves, relieving depression, strengthening the spleen, regulating qi, resisting aging, improving the immunity of organisms and the like, and particularly has a wide consumption market in the north.

Currently, regarding the production of jasmine tea, the processes of tea embryo treatment (drying and cooling), fresh flower treatment (spreading and cooling, fresh flower maintenance and flower screening), blending, scenting (generally scenting for 4-5 times), flower ventilation, flower formation, baking, jacquard, uniform stacking and boxing and the like are required, so that the processes are various, manual operation is mostly adopted, the work efficiency is low, the production cost is high, and the product quality is not easy to control. Therefore, how to select and configure advanced tea making equipment to form a set of more perfect and efficient processing system is a difficult problem to be solved urgently by current jasmine tea manufacturing enterprises.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a jasmine tea's production system solves the loaded down with trivial details problem of current jasmine tea preparation technology.

The utility model provides a technical scheme that its technical problem adopted is: a production system of jasmine tea comprises a three-layer shaking and screening machine for screening fresh flowers, a flower spreading machine for growing flowers, a double-layer shaking and screening machine for screening flowers, an electric heating dryer for drying tea embryos to be subjected to scenting again, a flower mixing machine for mixing jasmine flowers and tea leaves uniformly according to a proportion, an intelligent scenting machine for scenting flowers, a shaking and screening tea lifting machine for removing flowers, flower dust, flower stalks and broken tea and a microwave hot air dryer for drying tea leaves, which are arranged in sequence; the flower stirring machine, the intelligent scenting machine and the tea shaking and extracting machine are repeatedly arranged for 2, namely the flower stirring machine, the intelligent scenting machine and the tea shaking and extracting machine are arranged behind the first tea shaking and extracting machine, and the microwave hot air dryer is arranged behind the second tea shaking and extracting machine;

the three-layer shaking screen machine is provided with three layers of screen meshes, namely a first layer of screen mesh, a second layer of screen mesh and a third layer of screen mesh from top to bottom, wherein the first layer of screen mesh and the second layer of screen mesh are round-hole screens, the diameter of a round hole of the first layer of screen mesh is 2.5mm, the diameter of a round hole of the second layer of screen mesh is 2mm, the third layer of screen mesh is a square-hole screen, and the mesh number of the screen meshes is 10 meshes;

the two flower spreading machines are respectively connected with a discharge port of a second layer screen mesh and a discharge port of a third layer screen mesh of the three-layer shaking screen machine; the double-layer shaking and screening machine is also provided with two double-layer shaking and screening machines which are respectively connected with the two flower spreading machines, the double-layer shaking and screening machine is provided with two layers of screen meshes in total, the first layer of screen mesh and the second layer of screen mesh are respectively arranged from top to bottom, and the mesh holes of the first layer of screen mesh and the second layer of screen mesh are both in circular hole structures; the double-layer shaking and screening machine is arranged behind the flower spreading machine connected with a discharge port of a second layer of screen mesh of the three-layer shaking and screening machine, the diameter of a round hole of the first layer of screen mesh is 2.7mm, and the diameter of a round hole of the second layer of screen mesh is 1 mm; the double-deck screen (ing) machine of trembling of setting behind the machine of making a fancy of spreading out that is connected with the third layer screen cloth discharge gate of three-layer screen (ing) machine is trembled, and the round hole diameter of first layer screen cloth is 2.5mm, and the round hole diameter of second layer screen cloth is 0.8 mm.

Further improving the purity of the tea, and a photoelectric color selector, an anion wind impurity remover, a microwave light wave sterilizer and an intelligent packaging machine are sequentially arranged behind the microwave hot air dryer.

For guaranteeing tealeaves and flower misce bene, simultaneously, can get rid of garrulous end when mixing flowers, mix flowers machine and include the cell body, the cell body is network structure, is provided with the vibrator that drives the cell body vibration below the cell body, be provided with the axis of rotation that sets up along cell body length direction in the cell body, the interval is provided with a set of stirring and copies the hand in the axis of rotation, the stirring copies the hand including a set of piece that turns over along the setting of axis of rotation circumferencial direction, the cladding has one deck nanofiber cloth on the piece of turning over.

Further, be provided with the batching jar that mixes the tea embryo that dries by the fire again of electric dryer and the jasmine among the double-deck sieve machine of trembling in the same place before mixing the flower machine, vertically be provided with a (mixing) shaft in the batching jar 5, be provided with spiral stirring vane on the (mixing) shaft, the last cladding of spiral stirring vane has one deck nanofiber cloth.

In order to ensure the scenting effect of the intelligent scenting machine, the intelligent scenting machine comprises a closed box body and a multi-layer rotary scenting conveying belt arranged in the box body, wherein a feeding hole is formed in the box body, which is positioned above the bottom rotary scenting conveying belt, a discharging hole is formed in the lower part of one side of the uppermost rotary scenting conveying belt, a lifting device for lifting tea and flowers in the next rotary scenting conveying belt to the upper rotary scenting conveying belt is further arranged on one side of the multi-layer rotary scenting conveying belt, the rotary scenting conveying belt is of a mesh structure, a material turning mechanism is further arranged above each rotary scenting conveying belt, a scent collecting cover is arranged at the top of the box body, a circulating air pipe is connected to the top of the scent collecting cover, a group of air inlet pipes blowing upwards are uniformly distributed at the bottom of the box body, one end of each air inlet pipe is communicated with the circulating air pipe, a fan is also arranged in the circulating air pipe;

an oxygen sensor is arranged in the box body, an air inlet branch pipe communicated with the outside atmosphere is arranged on the circulating air pipe, an air inlet valve is arranged on the air inlet branch pipe, an air outlet is also arranged at the top of the box body, and an exhaust valve is arranged on the air outlet; a humidity sensor and a humidifier matched with the humidity sensor are also arranged in the box body; and a temperature sensor and a temperature control device for heating and cooling in the box body are also arranged in the box body.

In order to facilitate lifting of the tea leaves and the flowers, the lifting device comprises a lifting screw rod and a group of screw nuts arranged on the lifting screw rod, wherein a feeding hopper is fixedly connected to the screw nuts and is matched with the rotary scenting conveying belt; the bottom of the feeding hopper is provided with a movable bottom plate for controlling the size of the bottom opening.

Preferably, the shaking, screening and tea extracting machine is provided with two layers of screen meshes, wherein the first layer of screen mesh is a round hole, the diameter of the round hole is 2.7mm, the second layer of screen mesh is a square hole, and the mesh number of the second layer of screen mesh is 10 meshes.

In order to further remove impurities such as dust and the like adhered to the surfaces of the tea leaves, the negative ion wind impurity removing machine comprises a vibration groove, the vibration groove is of a mesh structure, the mesh number of the mesh is 10-12 meshes, and a group of negative ion fans and impurity recovery covers blowing downwards to the vibration groove are arranged above the vibration groove at intervals.

The utility model has the advantages that: through the utility model discloses a system configuration can effectively improve the effect of basement fragrance, reduces the quantity of jasmine simultaneously, can also guarantee the cleanliness of tealeaves to obtain a tealeaves clean even, the full-bodied jasmine tea of jasmine fragrance. Specifically, picked jasmine flowers are screened by a three-layer shaking and screening machine, so that opened jasmine flowers, branches and leaves and broken pieces are removed, unopened flowers are reserved, and the cleanliness of the jasmine flowers is improved; and grading the flowers, growing the graded jasmine flowers through the two flower spreading machines, wherein the two flower spreading machines have different parameter settings according to different bud opening degrees of the jasmine flowers, so that the uniformity of the opening degree of the jasmine flowers is controlled, the flower fragrance degree required by scenting is obtained, and the subsequent scenting effect is improved. The flower stirring machine replaces the traditional manual flower stirring, is clean and sanitary, has no dust and impurity pollution, is uniform in flower stirring, can improve the work efficiency by 3-4 times, reduces the production cost by 80%, and can reduce the breakage rate of jasmine flowers and tea embryos by 20-30% by using a turnover sheet and a spiral stirring blade which are coated by nano-fiber cloth. The intelligent scenting machine changes the traditional conveying mode of tea and jasmine, the tea and the jasmine are conveyed from the bottom upwards, fresh jasmine and tea are continuously conveyed from the bottom, jasmine fragrance of the bottom layer is continuously blown upwards through the circulating air pipe, so that tea on the upper layer is fully scented, single-layer tea scenting is avoided, volatilization of jasmine fragrance is reduced along with the passage of time, fragrance absorption of tea embryos is uneven, and the scenting effect is reduced. Meanwhile, the intelligent scenting machine ensures the temperature, humidity and oxygen content required during scenting through the devices for controlling temperature, humidity and oxygen, and ensures the scenting effect. The microwave dryer is used, high-frequency microwaves penetrate through the interior of the jasmine tea and heat and dry the inside and the outside of the jasmine tea with hot air, so that the jasmine tea is good in drying quality and free of smoke and scorched smell, the strong and lasting fragrance of the jasmine tea is facilitated, and the technical problem that the fragrance of the jasmine tea is easy to volatilize and lose due to external heating conduction drying of hot air, electric heat, steam and the like is solved. The color selector is used together with the negative ion air impurity removal machine, so that not only can impurities such as tea stems, flowers, grass leaves, stem shells, fibers and hairs be effectively removed, but also the technical obstacle that micro insects and dust foreign matters adhered to the surfaces of the tea leaves are difficult to remove is solved, and the color selector plays an important role in ensuring the quality safety of jasmine tea products.

The present invention will be described in more detail with reference to the accompanying drawings and examples.

Drawings

Fig. 1 is a system block diagram of the present invention.

Fig. 2 is the utility model discloses well three-layer trembles the structural schematic diagram of sieve machine.

Fig. 3 is a schematic structural view of the flower spreading machine of the present invention.

Fig. 4 is the utility model discloses well double-deck structural schematic that trembles the sieve machine.

Fig. 5 is a schematic structural view of the dispensing tank of the present invention.

Fig. 6 is a schematic structural view of the middle trough type flower mixing machine of the present invention.

Fig. 7 is a schematic structural view of the intelligent scenting machine of the present invention.

Fig. 8 is a front view of the material turning mechanism in the intelligent scenting machine.

Fig. 9 is a side view of the material turning mechanism in the intelligent scenting machine of the utility model.

Fig. 10 is the structural schematic diagram of the middle shaking sieve tea extracting machine of the utility model.

Fig. 11 is a schematic structural view of the negative ion wind impurity removing machine of the present invention.

Detailed Description

In an embodiment, as shown in fig. 1, a production system of jasmine tea is used for preparing jasmine tea so as to improve the fragrance of the jasmine tea, reduce the usage amount of the jasmine tea and improve the cleanliness of the jasmine tea. The system comprises a three-layer shaking and screening machine 1, a flower spreading machine 2, a double-layer shaking and screening machine 3, an electric heating dryer 4, a flower mixing machine 6, an intelligent scenting machine 7 and a shaking and screening tea extracting machine 8 which are arranged in sequence; the flower mixing machine 6, the intelligent scenting machine 7 and the tea shaking and screening machine 8 are repeatedly arranged by 2, namely the flower mixing machine 6, the intelligent scenting machine 7 and the tea shaking and screening machine 8 are arranged behind the first tea shaking and screening machine 8, and the microwave hot air dryer 9 is arranged behind the second tea shaking and screening machine 8; the flower mixing machine 6, the intelligent scenting machine 7 and the shaking sieve tea extracting machine 8 can be arranged, the microwave hot air dryer 9 is configured after the tea extracting machine 8 is shaken and sieved, a tea leaf discharge port of the tea extracting machine 8 is connected back to the flower mixing machine 6 through a pipeline, secondary flower mixing and secondary scenting are carried out, tea is shaken and sieved again, and then the tea is sent into the microwave hot air dryer 9, so that the using amount of equipment is reduced, and the investment cost is reduced. The microwave hot air dryer 9 is sequentially provided with a photoelectric color selector 10, an anion air impurity remover 11, a microwave light wave sterilizer 12 and an intelligent packaging machine 13.

Specifically, the method comprises the following steps: as shown in fig. 2, the three-layer shaking and screening machine 1 is used for screening picked jasmine flowers, and has three layers of screens, namely a first layer screen 101, a second layer screen 102 and a third layer screen 103 from top to bottom, wherein the first layer screen 101 and the second layer screen 102 are circular hole screens, the diameter of a circular hole of the first layer screen 101 is 2.5mm, the diameter of a circular hole of the second layer screen 102 is 2mm, the third layer screen 103 is a square hole screen, and the mesh number of the screens is 10; flowers, branches and leaves which are not high in flower fragrance are screened out through the first layer of screen 101, fresh buds with the diameter smaller than 2.5mm enter the second layer of screen 102, larger fresh buds are obtained through the second layer of screen 102, broken flower powder and insect egg sundries are screened out through the third layer of screen 103, and slightly smaller fresh buds are reserved; by adopting the three layers of screens, large impurities and fine powder can be removed by a step-by-step screening mode, fresh buds with approximate sizes are obtained, and the later-stage flower bud cultivation treatment on the buds with different openness degrees is facilitated, so that the jasmine flowers can better perfume. Simultaneously, adopt three-layer screen cloth, can avoid current shale shaker to adopt two-layer screen cloth structure, when the sieve removes garrulous end, when big or small fresh flower bud all gets into lower floor's screen cloth through a mesh, mutual extrusion causes the problem of mesh jam between the flower bud, and current two-layer screen cloth structure can cause debris such as garrulous end of flower and worm's ovum to stop on fresh flower bud, the poor problem of separation effect.

The flower spreading machine 2 is provided with two, the two flower spreading machines are respectively connected with a discharge port of a second layer screen 102 and a discharge port of a third layer screen 103 of the three-layer shaking and screening machine 1, and flower spreading is respectively carried out on jasmine buds with different sizes. The big and small buds are divided into two stages according to the different degrees of openness of the buds, and the flower spreading temperature and time are set according to the degrees of openness of the buds so as to ensure the flower spreading quality. As shown in fig. 3, the flower spreader 2 is a box structure, the length of the flower spreader is 6 meters, the width of the flower spreader is 2.6 meters, and the height of the flower spreader is 2.8 meters, and the flower spreader comprises a flower spreader box 201 and a plurality of layers of conveyor belts 202 arranged in the flower spreader box 201, wherein a leaf evener 203 is arranged at the feed end of each layer of conveyor belts 202, and the height of the leaf evener 203 is adjustable, so that the fresh buds can be smoothly conveyed by adjusting the conveying thickness of the fresh buds. The fresh buds enter from the conveying belt 202 at the top layer and exit from the conveying belt 202 at the bottom layer, and in order to realize better ventilation, fine ventilation meshes are uniformly distributed on the conveying belt 202. The cotton spreading machine is characterized in that a cold and hot air temperature controller 204 is arranged in the cotton spreading machine box body 201, the temperature in the cotton spreading machine is monitored through the cold and hot air temperature controller 204, and a fan is controlled to blow cold and hot air and control the air speed. Still be provided with ultrasonic humidifier 205, through the humidity in the humidity transducer control stand flower machine to carry out the humidification through ultrasonic humidifier 205, ultrasonic humidifier 205 has the atomizing effectual, the high advantage of humidification homogeneity, thereby guarantees the humidity requirement of every bright bud, makes it fresh and live. The speed of the conveyor belt 202 is adjustable, which may be based on the amount of time spent.

The two flower spreading machines 2 are respectively connected with a double-layer shaking screen machine 3 in a butt joint mode, as shown in fig. 4, the double-layer shaking screen machine 3 is provided with two layers of screen meshes, from top to bottom, a first layer of screen mesh 301 and a second layer of screen mesh 302 are respectively arranged, and the meshes of the first layer of screen mesh 301 and the second layer of screen mesh 302 are both of circular hole structures. The size of the screen of the double-layer shaking and screening machine 3 is limited according to the size of buds on the two flower spreading machines 2, wherein the double-layer shaking and screening machine 3 is arranged behind the flower spreading machine 2 connected with the discharge hole of the second layer screen 102 of the three-layer shaking and screening machine 1, the diameter of a circular hole of the first layer screen 301 is 2.7mm, and the diameter of a circular hole of the second layer screen 302 is 1 mm; the double-deck screen (3) of trembling behind the machine of spending 2 that the setting is connected with the third layer screen cloth 103 discharge gate of three-layer screen (1), the round hole diameter of first layer screen cloth 301 is 2.5mm, and the round hole diameter of second layer screen cloth 302 is 0.8 mm. Flower branches and stems, receptacle leaves and big flowers are screened out by the first layer screen 301 of the double-layer shaking screening machine 3, and sundries such as flowers, receptacles and the like are screened out by the second layer screen 302, so that purer jasmine flowers are extracted from the discharge hole of the second layer screen 302.

The electric heating dryer 4 is used for drying tea blanks to be scented again, the electric heating dryer 4 is a 6CHCDL-20 type electric heating dryer, a manufacturer is Zhejiang Hangzhou Touchai machinery limited company, the dryer comprises a box body, a rotary louver board which is arranged in the box body and used for carrying materials, the tea blanks can be uniformly paved on the louver board, the drying temperature and time are intelligently set, and automatic drying is carried out.

Mix flower machine 6 and be arranged in mixing the jasmine flower and tealeaves proportionally, tealeaves and two bilayers in the electric heat drying-machine 4 are trembled the jasmine flower in 3 second floor screens 302 of sieve machine and are carried together according to certain proportion through the conveyer belt and mix the flower in mixing flower machine 6, still are provided with batching jar 5 before getting into mixing flower machine 6, tealeaves and jasmine flower get into together through the conveyer belt earlier and mix the batching and just mix in batching jar 5, as shown in fig. 5, batching jar 5 is vertical to be placed, and the top is provided with the feed inlet, and the bottom is provided with the discharge gate, vertically is provided with a (mixing) shaft 501 in batching jar 5, is provided with helical mixing blade 502 on the (mixing) shaft 501, the cladding has one deck nanofiber cloth on the helical mixing blade 502.

The tea leaves and the jasmine flowers which are stirred by the batching tank 5 are sent to a flower stirring machine 6 for further flower stirring. As shown in fig. 6, the flower mixer 6 comprises a tank body 601, wherein the tank body is 9 meters long, 0.8 meter wide and 0.6 meter deep. The tank body 601 is of a net-shaped tank body structure, a vibrator for driving the tank body 601 to vibrate is arranged below the tank body 601, a rotating shaft 602 arranged along the length direction of the tank body 601 is further arranged in the tank body 601, a group of material turning hands 603 are arranged on the rotating shaft 602 at intervals, and the interval between the material turning hands 603 is 1.2-1.5 m. The stirring handle 603 comprises a group of stirring pieces 604 arranged along the circumferential direction of the rotating shaft 602, and one side of each stirring piece 604 is matched with the tank body 601, so that tea leaves and jasmine flowers in the tank body 601 are stirred up and scattered in the tank body 601 along with the rotation of the rotating shaft 602. The tea and the jasmine flowers can be further uniformly mixed through the material turning hand 603, meanwhile, in the process of turning, insect eggs, dust and other impurities carried in the tea and the jasmine flowers can be separated from the tea and the jasmine flowers, and then the tea and the jasmine flowers are vibrated through the groove body, so that fine impurities fall from meshes of the groove body, and the cleanliness and the purity of the tea and the jasmine flowers are further improved. In order to reduce the breakage rate of tea leaves and jasmine flowers in the throwing process, the turning piece 604 is coated with a layer of nano-fiber cloth. The tea leaves enter from one end of the tank body 601, are continuously conveyed forwards and stirred, and then are discharged from the other end of the tank body 601, so that the processes of flower mixing and impurity removal are realized.

The tail end of the groove type flower mixing machine 6 conveys the tea leaves and the jasmine flowers to a feeding hole of the intelligent scenting machine 7 through a conveying belt. As shown in fig. 7 to 9, the intelligent scenting machine 7 is a closed box structure, and includes a machine case 701, and a multi-layer rotary scenting conveyer belt 71 disposed in the machine case 701, a feed inlet 702 is disposed above the bottom layer rotary scenting conveyer belt 71 of the machine case 701, a lifting device 72 for lifting tea and jasmine to the upper layer rotary scenting conveyer belt 71 is disposed on the other side of the rotary scenting conveyer belt 71 opposite to the feed inlet 702, the lifting device 72 includes a feed hopper 721 disposed at intervals and adapted to the rotary scenting conveyer belt 71, a screw 722 for driving the feed hopper 721 to move up and down, a screw nut 723 is disposed on the screw 722, a mounting bracket 724 is disposed on the screw nut 723, and the feed hopper 721 is fixedly mounted on the mounting bracket 724. The feeding hopper 721 is of an open structure, a movable bottom plate 725 is arranged at the bottom of the feeding hopper 721, one end of the movable bottom plate 725 is hinged to the mounting support 724, the other end of the movable bottom plate is fixedly provided with a movable end of the discharging cylinder 726, a fixed end of the discharging cylinder 726 is mounted on the support 724, and the amount of tea and jasmine discharged materials is controlled by controlling the stretching of the discharging cylinder 726. A discharge hole 703 is arranged below the uppermost rotary scenting conveyer belt 71. The tea leaves and the jasmine flowers are firstly conveyed to the bottom layer rotary scenting conveying belt 71, after the bottom layer rotary scenting conveying belt 71 is scented for 3-4min, the rotary scenting conveying belt 71 rotates to convey the tea leaves to the feeding hopper 721, the feeding hopper 721 is driven by the lead screw 722 to move upwards to be conveyed above the upper layer rotary scenting conveying belt 71, then the layer of rotary scenting conveying belt 71 is controlled to rotate reversely, the movable bottom plate 725 at the bottom of the feeding hopper 721 is opened through the discharging cylinder 726, the tea leaves and the jasmine flowers are conveyed to the layer of rotary scenting conveying belt 71 at a certain speed and flow rate, and the tea leaves and the jasmine flowers are uniformly spread on the layer of rotary scenting conveying belt 71 to continue scenting by matching with the rotating speed of the rotary scenting conveying belt 71. Meanwhile, the bottom layer rotary scenting conveyer belt 71 continues to feed materials, and fresh tea leaves and jasmine flowers are fed in. By analogy, after scenting for a period of time, the tea leaves and the jasmine flowers are conveyed out through the outlet 703 until the scenting is finished by conveying the tea leaves to the top layer rotary scenting conveying belt 71, and then one scenting is finished.

The top of the scenting machine case 701 is also provided with an air suction opening 704, the bottom of the scenting machine case 701 is provided with an air inlet 705, an air pipe 73 is arranged between the air suction opening 704 and the air inlet 705, a fan 74 is arranged in the air pipe 73, the air pipe 73 is also provided with an air inlet branch pipe 731, an air inlet of the air inlet branch pipe 731 is communicated with the outside, the air inlet branch pipe 731 is also provided with an air inlet valve 732, and the air inlet valve 732 is used for controlling the opening and closing. The top of the box body 701 is also provided with an exhaust port 706, and an exhaust valve 707 is arranged on the exhaust port 706. In order to control the temperature, humidity and oxygen content in the box 701, a temperature sensor 75, a humidity sensor 76 and an oxygen sensor 77 are further arranged in the box 701, and the controller intelligently monitors the operation of each sensor and corresponding devices thereof, such as a humidifier matched with the humidity sensor, a temperature control device matched with the temperature sensor 75 and the like, so that the temperature, the humidity and the oxygen content in the box 701 are ensured, and the quality of scenting is improved. When scenting, setting the thickness of spread flowers at 25-30cm, the scenting temperature at 32-37 ℃, the scenting humidity at 80-85%, the scenting time at 13-15h, and exhausting and supplying oxygen for 1 time every 10-15 min. Meanwhile, the jasmine flowers and the tea leaves on the rotary scenting conveying belt 71 are turned once every 8-10min, and a material turning mechanism 78 is arranged above each layer of rotary scenting conveying belt 71 for facilitating the turning, so that the tea leaves and the tea leaves are turned intermittently in the scenting time.

The turning mechanism 78 comprises a horizontal lead screw 7801 and a group of horizontal lead screw nuts 7802 arranged on the horizontal lead screw 7801, a fixing seat 7803 is mounted on the horizontal lead screw nuts 7802, a sliding block 7804 moving up and down is mounted on the fixing seat 7803, a supporting rod 7805 is arranged below the sliding block 7804, a turning shaft 7806 transversely arranged above the rotary scenting conveying belt 71 is rotatably mounted on the supporting rod 7805, a group of turning claws 7807 are arranged on the turning shaft 7806 side by side, a turning motor 7808 for driving the turning shaft 7806 to rotate is further arranged on the supporting rod 7805, and a sliding block cylinder 7809 for controlling the sliding block 7804 to move up and down is further arranged on the fixing seat 7803. The tea and the flowers on the whole rotary scenting conveyer belt are turned by the rotation and the back and forth movement of the turning claw 7807. Meanwhile, the structure can also be used for adjusting the spreading thickness of the tea and the flower on the rotary scenting conveyer belt, so that the thickness of the tea and the flower at each position on the rotary scenting conveyer belt 71 is kept uniform and consistent.

Tea leaves and jasmine flowers from a discharge port 703 of the intelligent scenting machine are conveyed to a shaking-screening tea extracting machine 8 through a conveying belt to extract tea, and impurities such as flowers, flower dust, flower stalks, broken tea and the like are screened out to obtain the jasmine tea. As shown in fig. 10, the tea shaking and extracting machine 8 is provided with two layers of screens, wherein the first layer of screen 801 is a round hole with a diameter of 2.7mm, the second layer of screen 802 is a square hole, and the mesh number of the second layer of screen 802 is 10 meshes.

The microwave dryer 9 is a tunnel type microwave dryer, a model of an HTWS-48 tunnel microwave dryer produced by Nanjing Limited company is selected from Runhao intelligent equipment, the length of the external model of the tunnel microwave dryer is 13800mm, the width of the external model is 1140mm, the height of the external model is 1700mm, the microwave power is 40KW, and the hot air temperature is 50-120 ℃. The method is mainly characterized in that microwave and hot air heating are controlled through a PCL human-computer interface, microwave penetrates through the interior of the scented tea and the hot air with the set temperature of 90-110 ℃ at a frequency of 2450MHZ, and the scented tea is dried inside and outside, so that the method is favorable for promoting the fragrance of the jasmine flowers to be rich and lasting, is low in energy consumption and high in thermal efficiency, does not have scorched tea and smoke scorched flavor, and solves the technical problems that the fragrance of the jasmine flowers is easy to volatilize and lose due to external heat conduction drying of hot air, electric heat, steam and the like.

The photoelectric color selector 10 preferably adopts an intelligent photoelectric color selector of model number TTW6R, which is manufactured by anshuizhan photoelectric technology limited company, and recognizes and removes impurities such as tea stems, flower and grass leaves, stem shells, fibers, hairs and the like by using the picking function of an intelligent recognition system.

As shown in fig. 11, the anion wind impurity removing machine 11 includes a vibration tank 1101, the vibration tank 1101 is a mesh structure, the mesh number of the mesh is 10-12 meshes, the vibration tank 1101 is 3 meters in length, 0.45 meter in width and 0.5 meter in depth, a group of anion fans 1102 blowing downward to the vibration tank 1101 is arranged above the vibration tank 1101 at intervals of 10-12 cm, the interval between adjacent anion fans 1102 is 1 meter, and a impurity recovery cover 1103 made of polyester fiber material is arranged above the anion fans 1102. The polyester fiber is a fiber formed by condensation polymerization of organic dibasic acid and dihydric alcohol, belongs to a high molecular compound, and has the characteristics of fastness, durability, wrinkle resistance, no iron burn, no hair stick, and high-efficiency recovery of floating dust and insect eggs. After the tea leaves are conveyed to the vibration tank 1101, the vibration tank 1101 bounces the tea leaves and simultaneously removes fine insect bodies and dust and foreign matters adhered to the surfaces of the tea leaves by positive and negative electric charge air flows of the negative ion fan 1102. The used technical parameters comprise that firstly, the broken flower tea dust is screened out through a vibration groove, then the air quantity of a negative ion fan is set to be 20-25 cubic meters per second, the time is 3-4min, and the positive and negative charge air flow of the negative ion fan arranged above a groove body is utilized to remove the flower worms and the dust foreign matters, so that the cleanliness of the flower worms and the dust foreign matters reaches more than 99.8%.

The microwave and light wave sterilizer 12 is a YV-3 type microwave and light wave sterilizer manufactured by Siemens. The machine utilizes the strong radiation action of microwave and light wave to comprehensively kill harmful organisms and germs.

The intelligent packaging machine 13 is an integrated intelligent packaging machine for feeding, weighing, filling, nitrogen filling, film sealing, boxing, bagging, plastic packaging, boxing and the like. The machine is characterized in that scented tea is filled into a small tank with the height of 33 mm and a multi-bubble filling tank with the height of 103 mm through an intelligent manipulator, and each tank is filled with 18-32 ml of nitrogen in time, so that oxygen-free vacuum preservation of the small tank of jasmine tea is realized, and the small tank of jasmine tea can be stored for 2 years in a normal temperature environment, and the emerald green color and rich fragrance of the jasmine tea can be kept.

The production system for preparing the jasmine tea comprises the following steps:

1) picking fresh flowers, namely picking fresh buds which are large in flower buds, free of diseases and insect pests and free of stems and leaves in afternoon in sunny days;

2) inputting the fresh flower buds into a three-layer shaking and screening machine 1 through a lifter to screen flowers; by adopting the three layers of screens, large impurities and broken powder can be removed by a step-by-step screening mode, fresh buds with approximate sizes are obtained, and the later-stage flower bud cultivation treatment on the buds with different openness degrees is facilitated, so that the jasmine flowers can better perfume. Passing through a three-layer shaking and screening machine 1 to obtain larger fresh buds from a second layer of screen and slightly smaller fresh buds from a third layer of screen;

3) inputting the larger fresh buds screened by the second layer of screen cloth and the slightly smaller fresh buds screened by the third layer of screen cloth into two flower spreading machines 2 which are provided with a cold and hot air temperature controller and an ultrasonic humidifier respectively, and performing temperature-controlled humidifying flower growing respectively; the flower spreading machine for growing the fresh buds is set to be 10-13 cm in flower spreading thickness, the flower growing temperature is 36-38 ℃, the flower growing humidity is 75-82%, and the flower growing time is 2.5-2.8 hours, so that the flower spreading machine can be recovered to promote blooming and fragrance; the flower spreading machine 2 for cultivating the small flower buds is set to be 13-15 cm in flower spreading thickness, the flower cultivating temperature is 36-38 ℃, the flower cultivating humidity is 75-82%, and the flower cultivating time is 2.8-3 h, so that the flower spreading machine can recover the vitality to promote blooming and fragrance.

4) Screening and jacquard weaving, namely conveying the jasmine flowers maintained by the two flower spreading machines to a double-layer shaking and screening machine 3 respectively, screening out unopened flowers, identifying broken flowers, withering the flowers, and extracting the opened jasmine flowers;

5) re-drying the tea blank, namely conveying the tea blank to be scented to an electric heating dryer 4, setting the temperature to be 80-85 ℃, and re-drying for 3-5 min to enable the water content to be 5.5-6%; the re-drying of green tea embryo is the green tea embryo prepared through the processes of tea leaf picking → electric heating water-removing → mechanical rolling → rolling and shaping → electric heating baking → shaking and sieving to remove powder and the like.

6) And (3) performing primary flower mixing, namely inputting the redried tea blank and the jasmine obtained in the step 4) into a mixing tank 5 from discharge ports of second-layer screens of the electric heating dryer and the 2 screen shaking machines respectively in a weight ratio of 1: 1-1.5 through a conveying belt for mixing and stirring, and then performing flower mixing and forward conveying through a groove type flower mixer 6 below the mixing tank 5.

7) And (3) scenting the flowers once, namely conveying the uniformly mixed jasmine flowers and tea leaves to an intelligent scenting machine 7 for scenting the flowers. Setting the spreading thickness at 25-30cm, the scenting temperature at 32-37 deg.C, the scenting humidity at 80-85%, the scenting time at 13-15h, and exhausting and supplying oxygen for 1 time every 10-15 min. Meanwhile, the jasmine flowers and the tea leaves on the rotary scenting conveyer belt 71 are turned once every 8-10 min.

8) And (3) carrying out primary flower screening and tea extraction, wherein the tea leaves and the jasmine flowers from the discharge port 703 of the intelligent scenting machine are conveyed to a shaking and screening tea extracting machine 8 through a conveying belt to carry out tea extraction, and impurities such as flowers, flower dust, flower stalks, broken tea and the like are screened out to obtain the primarily-prepared jasmine tea.

9) And (3) secondary flower accompanying, namely, conveying the primarily-made jasmine tea and the jasmine obtained in the step 4) into a mixing tank 5 with the same in the step 6) together through a conveying belt according to the weight ratio of 1: 1-1.2 for mixing and stirring, and then mixing flowers through a groove type flower mixer 6 below the mixing tank 5 and conveying forwards.

10) Secondary scenting, namely conveying the uniformly mixed jasmine and tea to the same intelligent scenting machine in the step 7) for secondary scenting; setting the thickness of spreading flowers to be 25-28 cm, the scenting temperature to be 35-37 ℃, the scenting humidity to be 80-85%, the scenting time to be 10-11 h, and exhausting and supplying oxygen for 1 time every 12-15 min; the secondary intelligent scenting process has the advantages that a good temperature and humidity and oxygen supply environment is created for the whole scenting process, a large amount of jasmine fragrance is promoted to be absorbed, fused and reserved, the change of moisture and tea color can be controlled in time through the moisture detector and the video monitor, and the problems that the traditional process completely depends on manual control of the scenting process, some unexpected technical obstacles and quality problems can occur can be solved.

11) And (3) carrying out secondary flower screening and tea extraction, namely conveying the scented jasmine and the tea to the same shaking and screening tea extractor 8 in the step 8), and screening out flowers, flower dust, flower stalks and broken tea to obtain the 2-time scented jasmine tea.

12) And (3) microwave drying, namely conveying the jasmine tea obtained in the step 11) to a microwave dryer 9, setting the temperature of hot air to be 90-110 ℃, drying for 5-8min, and drying until the water content is less than or equal to 7.5% to obtain the jasmine tea.

13) And (3) color sorting and purifying, namely inputting the dried jasmine tea into a photoelectric color sorting machine 10, and identifying and removing impurities such as tea stems, flowers, stem bark, fibers and the like by using the sorting and removing functions of an intelligent identification system.

14) Removing foreign matters by ion wind, conveying the color-selected jasmine tea to a negative ion wind impurity remover 11, and removing foreign matters and impurities adsorbed on the tea leaves, including dust, insect eggs and the like.

15) Microwave light wave sterilization, namely inputting the purified jasmine tea into a microwave light wave sterilizer, setting the sterilization temperature to be 100-.

16) And (3) filling nitrogen for freshness keeping packaging, namely inputting the sterilized jasmine tea into an integrated intelligent packaging machine, filling small cans with the height of 33 mm and the diameter of 48 mm and large cans with the height of 103 mm and the diameter of 64 mm, filling 18-20 ml of nitrogen into each can through nitrogen filling, sealing films, boxing, bagging, plastic packaging and boxing, and performing nitrogen filling for freshness keeping packaging.

The invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited by the above-described manner. Various insubstantial improvements are made by adopting the method conception and the technical proposal of the utility model; or without improvement, the above conception and technical solution of the present invention can be directly applied to other occasions, all within the protection scope of the present invention.

Claims

1. A jasmine tea's production system which characterized in that: the flower scenting machine comprises a three-layer shivering screen machine for screening fresh flowers, a flower spreading machine for growing flowers, a double-layer shivering screen machine for screening flowers, an electric heating dryer for re-drying tea embryos to be scented, a flower mixing machine for uniformly mixing jasmine flowers and tea leaves according to a proportion, an intelligent scenting machine for scenting flowers, a shivering screen tea lifter for removing flowers, flower dust, flower stalks and broken tea and a microwave hot air dryer for drying the tea leaves, which are sequentially arranged; the flower stirring machine, the intelligent scenting machine and the tea shaking and extracting machine are repeatedly arranged for 2, namely the flower stirring machine, the intelligent scenting machine and the tea shaking and extracting machine are arranged behind the first tea shaking and extracting machine, and the microwave hot air dryer is arranged behind the second tea shaking and extracting machine;

2. The jasmine tea production system of claim 1, wherein: a photoelectric color selector, an anion air impurity remover, a microwave light wave sterilizer and an intelligent packaging machine are sequentially arranged behind the microwave hot air dryer.

3. The jasmine tea production system of claim 1, wherein: the flower stirring machine comprises a tank body, wherein the tank body is of a net structure, a vibrator for driving the tank body to vibrate is arranged below the tank body, a rotating shaft arranged along the length direction of the tank body is arranged in the tank body, a set of stirring hands are arranged on the rotating shaft at intervals, each stirring hand comprises a set of stirring pieces arranged along the circumferential direction of the rotating shaft, and one layer of nanofiber cloth is wrapped on each stirring piece.

4. The jasmine tea production system of claim 3, wherein: the tea embryo in the electric heating dryer and the jasmine flower in the double-layer shaking and screening machine are mixed together in a batching tank which is arranged in front of the flower stirring machine, a stirring shaft is vertically arranged in the batching tank, a spiral stirring blade is arranged on the stirring shaft, and a layer of nano-fiber cloth is coated on the spiral stirring blade.

5. The jasmine tea production system of claim 1, wherein: the intelligent scenting machine comprises a closed box body and a multi-layer rotary scenting conveying belt arranged in the box body, wherein a feeding hole is formed in the box body and positioned above the bottom rotary scenting conveying belt, a discharging hole is formed in the lower portion of one side of the uppermost rotary scenting conveying belt, a lifting device for lifting tea and flowers in the next rotary scenting conveying belt to the upper rotary scenting conveying belt is further arranged on one side of the multi-layer rotary scenting conveying belt, the rotary scenting conveying belt is of a mesh structure, a material turning mechanism is further arranged above each rotary scenting conveying belt, a fragrance collecting cover is arranged at the top of the box body, a circulating air pipe is connected to the top of the fragrance collecting cover, a group of air inlet pipes blowing upwards is uniformly distributed below the rotary scenting conveying belt at the bottom of the box body, and one end of each air inlet pipe is communicated with the circulating air, a fan is also arranged in the circulating air pipe;

6. The jasmine tea production system of claim 5, wherein: the lifting device comprises a lifting screw rod and a group of screw rod nuts arranged on the lifting screw rod, wherein a feeding hopper is fixedly connected to the screw rod nuts and is matched with the rotary scenting conveying belt; the bottom of the feeding hopper is provided with a movable bottom plate for controlling the size of the bottom opening.

7. The jasmine tea production system of claim 1, wherein: tremble sieve and carry tea machine and be provided with two-layer screen cloth, wherein the first layer screen cloth is the round hole, and the round hole diameter is 2.7mm, and the second layer screen cloth is the square hole, and the mesh number of second layer screen cloth is 10 meshes.

8. The jasmine tea production system of claim 2, wherein: the negative ion wind impurity removing machine comprises a vibration groove, the vibration groove is of a mesh structure, the mesh number of the meshes is 10-12 meshes, and a group of negative ion fans blowing downwards to the vibration groove and impurity recovery covers made of polyester fiber materials are arranged above the vibration groove at intervals.