A continuous production line for primary processing of Dahongpao tea

Abstract

The present invention discloses a continuous production line for the primary processing of Dahongpao tea, including a sun-drying, withering and spreading machine, a light-heat intelligent shaking machine, a fixing machine unit and a rolling enzymatic drying machine unit connected sequentially by a conveying device. The present invention improves and connects the sun-drying, withering and spreading machine, the light-heat intelligent shaking machine, the fixing machine unit and the rolling enzymatic drying machine unit, so that it can realize the continuous and automatic primary processing of Dahongpao tea, and can not only make the appearance green-brown fresh and moist, the strip is thick and tight, the soup color is orange-yellow and clear, the taste is rich and sweet, the leaf bottom is red and green, and the Dahongpao tea with rich orchid fragrance can be made, but also the primary processing process is simplified, the work efficiency can be improved by 1-1.5 times, and the production cost can be saved by about 30-40%. It can be widely used in the processing field of Dahongpao.

Description

Technical Field

[0001] The invention relates to the field of tea processing, in particular to a continuous production line for primary processing of Dahongpao tea. Background Art

[0002] The current primary processing procedures of Da Hong Pao tea mainly include: picking → spreading → sun drying → withering → making green → killing green → rolling → baking → aroma enhancement. In these production processes, most of them are operated by a single machine, and some processes such as sun drying, spreading, baking, aroma enhancement are still done manually, so the mechanical equipment is simple, the degree of continuity is low, the labor load is large, the operation is complicated, the work efficiency is low, and the primary processing cost is high. Therefore, my country's Da Hong Pao tea producing areas urgently need a continuous primary processing production line to solve the above problems. Summary of the invention

[0003] The purpose of the present invention is to provide a continuous production line for the primary processing of Dahongpao tea, so as to solve the problems that most of the existing primary processing procedures of Dahongpao tea adopt single machine operation and manual operation, and the mechanical equipment is simple, the degree of continuity is low, the labor workload is large, the operation is complicated, the work efficiency is low, and the tea making cost is high.

[0004] The technical solution adopted by the present invention to solve the technical problem is: a continuous production line for primary processing of Dahongpao tea, comprising a sun-drying, withering and spreading machine, a light-heat intelligent shaking machine, a continuous withering unit and a rolling, enzymatic hydrolysis and drying unit connected in sequence through a conveying device;

[0005] The sun drying, withering and spreading machine comprises a box body, on which a sun drying layer, a withering layer and a spreading layer are arranged in sequence from top to bottom; a foldable movable frame is arranged on the top of the sun drying layer, a photovoltaic panel is laid on the top of the movable frame, and an infrared light source for irradiating the sun drying layer is installed below the movable frame; an orange light source is arranged on the top of the withering layer, and a hot and cold air unit is also arranged, and the temperature of the sun drying layer, the withering layer and the spreading layer is adjusted by the hot and cold air unit;

[0006] The continuous tea-fixing unit comprises an electromagnetic tea-fixing drum and a hot air tea-fixing tank connected to the discharge port of the electromagnetic tea-fixing drum;

[0007] The kneading enzymatic hydrolysis and drying machine group includes a group of kneading machines arranged side by side, a deblocking enzymatic hydrolysis machine arranged below the kneading machines and a double hot air dryer connected to the discharge end of the deblocking enzymatic hydrolysis machine. The kneading machine includes a kneading tea barrel, a kneading plate, and a kneading cover; the kneading cover is connected to a first hot air branch pipe that blows hot air into the kneading tea barrel.

[0008] In order to facilitate the blanking and ensure the uniformity of the blanking, the sun-drying layer is an open box structure on the top, and a group of openable flaps are arranged at the bottom of the sun-drying layer, and two adjacent flaps are overlapped with each other; the bottom of the withering layer is provided with a flap plate identical to the bottom of the sun-drying layer.

[0009] In order to further improve the utilization rate of light source and the uniformity of sun drying, the inner walls of the sun drying layer and the withering layer are provided with reflective glass of stainless steel color; further, a group of serrated agitators which can be reversed are arranged at intervals on the withering layer and the spreading layer.

[0010] Specifically, the photothermal intelligent shaking machine includes a shaking drum, which is also provided with an infrared lamp and an illumination lamp. The infrared lamp and the illumination lamp are connected with an adjustment switch for adjusting their power. The feed end is also provided with a hair dryer for blowing air to the shaking drum. The shaking drum is provided with a temperature sensor and a humidity sensor, and is also provided with a control display screen. The control display screen receives signals from the temperature sensor and the humidity sensor, and controls the operation of the adjustment switch and the hair dryer.

[0011] Furthermore, the electromagnetic killing drum includes a killing drum and an electromagnetic heater for heating the killing drum; the feeding end of the killing drum is high, the discharging end is low, and the overall arrangement is inclined at 3-5°; the hot air killing trough includes a trough body, the feeding end of the trough body is high, the discharging end is low, and the overall arrangement is inclined at 6-7°, an auger leaf turning device is arranged in the trough body, the auger leaf turning device is arranged along the length direction of the trough body, and a group of leaf turning claws are arranged at intervals on the auger leaf turning device; a trough cover is arranged above the trough body, the trough cover is connected to a suction fan, and the suction fan is connected to a humid hot air recovery, heating and purification device.

[0012] Furthermore, the wet hot air recovery, heating and purification device is provided with a group of hot air output pipes, including a first hot air output pipe whose air outlet is located at the discharge end of the withering drum and blows toward the inner wall of the withering drum, a second hot air output pipe whose air outlet is located on both sides of the feeding end of the trough body and blows toward the two side walls of the trough body, and a third hot air output pipe connected to one end of the auger leaf turning device; a hot air cavity connected to the third hot air output pipe is provided in the auger leaf turning device, and a group of air outlet holes connected to the hot air cavity are evenly distributed on the auger leaf turning device.

[0013] Preferably, the killing roller has a two-layer structure, with an inner layer made of stainless steel material and an outer layer made of composite titanium steel material.

[0014] Further, the deblocking enzymolysis machine includes a deblocking enzymolysis tank, a vibrating screen arranged at the bottom of the deblocking enzymolysis tank, a second hot air branch pipe for blowing hot air to the deblocking enzymolysis tank is arranged at both ends of the deblocking enzymolysis tank, a group of third hot air branch pipes are staggered and arranged at intervals on both sides of the deblocking enzymolysis tank, and a group of fourth hot air branch pipes are arranged at intervals at the bottom of the deblocking enzymolysis tank;

[0015] The dual hot air dryer includes a drying box, an electric heating device arranged at the bottom of the drying box, and 5 layers of circulating chain plates are arranged in the drying box, which are the 1st to 5th layers from bottom to top. A fifth hot air branch pipe for blowing hot air upwards is arranged above the third layer of circulating chain plates.

[0016] In order to recycle and reuse the hot air, the dual hot air dryer is provided with a wet hot air recovery, heating and purification device; the wet hot air recovery, heating and purification device includes a recovery cover located on the top of the drying box, the recovery cover is connected to a heating and purification cabin, the heating and purification cabin is connected to a hot air output device, and the hot air output device is connected to the first hot air branch pipe, the second hot air branch pipe, the third hot air branch pipe, the fourth hot air branch pipe and the fifth hot air branch pipe.

[0017] In order to improve the uniformity of enzyme addition, a weighing and conveying device and an enzyme dosing machine are arranged at the feeding end of the kneading machine; a drip irrigation enzyme doser is arranged on the kneading cover, and the liquid outlet of the drip irrigation enzyme doser is located below the air outlet of the first hot air branch pipe.

[0018] Beneficial effects of the invention: The invention improves and connects the sun-drying and withering machine, the light-heat intelligent shaking machine, the killing machine, and the rolling and enzymatic drying machine, so that the continuous and automated primary processing of Da Hong Pao tea can be realized. Not only can the Da Hong Pao tea with fresh green-brown color, thick and tight strips, clear orange-yellow soup color, rich and sweet taste, red and green leaf bottom, and rich orchid fragrance be produced, but also the primary processing process is simplified, the work efficiency is improved by 1-1.5 times, and the production cost is saved by 30-40%.

[0019] The sun-drying, withering and spreading machine adopts a three-layer structure design. The tea leaves are sun-dried, withered and spread in sequence. The degree of automation is high, the labor is reduced by 50-60%, the work efficiency is improved by 1-2 times, and the cost of tea making is reduced by 45-55%, which improves the favorable prerequisite for the automatic and continuous processing of Dahongpao tea. The present invention adopts a combination of sunlight sun-drying and light sun-drying, which can solve the problem that the conventional sunlight sun-drying is easy to burn the buds and leaves due to direct sunlight, resulting in browning of color and affecting the quality of sun-drying, and uses infrared light to simulate the sunlight sun-drying in the early morning and evening, so as to promote the wilt and reddening of the leaf stems and make the leaf quality soft, and at the same time enhance the activity of polyphenol oxidizing enzymes in the buds and leaves, promote the decomposition and conversion of the starch, protein, insoluble protopectin and other substances contained therein, form tea polysaccharides, amino acids, aromatic substances, soluble pectin, and further optimize the quality of Dahongpao tea.

[0020] The continuous tea-fixing unit adopts the combination of electromagnetic tea-fixing drum and hot air tea-fixing trough, firstly uses the electromagnetic radiation heat energy of the electromagnetic tea-fixing drum to penetrate into the inner layer of tea leaves for steaming tea-fixing, quickly kills the polyphenol oxidase activity in the inner layer of tea leaves, and prevents the red change reaction, and then uses the hot air tea-fixing trough for secondary permeation tea-fixing, which efficiently volatilizes the moist hot gas, promotes the volatilization of aromatic substances and improves the aroma, and can overcome the technical limitation of the existing drum-type tea-fixing machine that is difficult to quickly emit and eliminate the moist hot gas that affects the tea-fixing quality. The moist hot gas recovery, heating and purification device recycles and reuses the moist hot gas in the hot air tea-fixing trough, which can improve the heat utilization rate and achieve energy saving and emission reduction.

[0021] The kneading enzymatic hydrolysis and drying unit adds bromelain through a traveling spray enzyme feeder and a drip irrigation enzyme feeder on a kneading cover, and kneads the tea using a wood and bamboo kneading unit, thereby avoiding adverse antagonistic reactions between exogenous biological enzyme solutions and metal ions. In particular, the use of a hot air deblocking enzymatic hydrolysis tank is beneficial to strengthening the oxygenation enzymatic hydrolysis reaction of bromelain, thereby efficiently hydrolyzing substances such as protein, cellulose, polypeptide, fat, and amide in tea leaves, converting them into a large amount of enzymatic hydrolysis products to optimize the color, aroma, and taste quality, and even adding the aroma of pineapple.

[0022] The photothermal intelligent shaking machine can increase the degree of destruction of leaf edge cells, making its shaking progress 25-30% faster than the traditional shaking process. Only two photothermal shakings are needed to replace 7-8 shakings in the traditional process, which greatly simplifies the shaking procedure, shortens the shaking time, and can quickly form the quality characteristics of "green leaves with red edges and floral fragrance".

[0023] The present invention will be described in more detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is the front view of the present invention.

[0025] Figure 2 It is a front view of the green sun drying, withering and spreading machine in the present invention.

[0026] Figure 3 It is a structural schematic diagram of the flap plate in the present invention.

[0027] Figure 4 It is a structural schematic diagram of the movable frame in the present invention.

[0028] Figure 5 It is a left view of the nano plastic soft groove edge in the present invention.

[0029] Figure 6 It is a structural schematic diagram of the sawtooth stirrer in the present invention.

[0030] Figure 7 It is a schematic diagram of the structure of the infrared light irradiation light source in the present invention.

[0031] Figure 8 It is a schematic diagram of the structure of the orange light irradiation light source in the present invention.

[0032] Fig. 9 It is the front view of the photothermal intelligent shaking machine in the present invention.

[0033] Fig.10 It is the front view of the green shaking drum in the present invention.

[0034] Fig.11 It is a right side view of the driving device in the present invention.

[0035] Fig.12 The figure is a schematic diagram of the structure of the quartz cover on the illumination lamp of the present invention.

[0036] Fig.13 It is the front view of the fixing unit in the present invention.

[0037] Fig.14 It is a front view of the feeding and impurity removing conveyor belt in the present invention.

[0038] Fig.15 It is the front view of the electromagnetic killing roller in the present invention.

[0039] Fig.16 It is a side view of the electromagnetic heater in the present invention.

[0040] Fig.17 It is a front view of the hot air fixing tank in the present invention.

[0041] Fig.18 It is a cross-sectional view of the auger leaf turning device in the present invention.

[0042] Fig.19 It is a schematic diagram of the structure of the wet hot gas recovery, heating and purification device in the present invention.

[0043] Fig. 20 It is a front view of the kneading enzymolysis and drying unit in the present invention.

[0044] Fig.21 It is the front view of the weighing and conveying device in the present invention.

[0045] Fig. 22 It is a front view of the rolling machine and the deblocking enzymatic hydrolyzer in the present invention.

[0046] Fig.23 for Fig. 22 A magnified schematic diagram of part A in the figure.

[0047] Fig.24 It is an assembly cross-sectional view of the drip irrigation enzyme doser and the first hot air branch pipe on the kneading cover of the present invention.

[0048] Fig.25It is a three-dimensional diagram of the deblocking robot in the present invention.

[0049] Fig.26 It is the front view of the double hot air drying machine in the present invention. DETAILED DESCRIPTION

[0050] Examples, such as Figure 1 As shown, a continuous production line for the primary processing of Dahongpao tea includes a sun-drying, withering and spreading machine 1, a photothermal intelligent shaking machine 2, a withering unit 3 and a rolling, enzymatic hydrolysis and drying unit 4, which are connected in sequence through a conveying device.

[0051] Specific: such as Figures 2 to 8 As shown, the sun drying, withering and spreading machine 1 comprises a housing 11, and the housing 1 is provided with a sun drying layer 111, a withering layer 112 and a spreading layer 113 in sequence from top to bottom.

[0052] The sun-drying layer 111 is provided with an open box structure with a depth of 60 cm. A group of openable leaf flaps 12 are arranged at the bottom of the sun-drying layer 111, and two adjacent leaf flaps 12 overlap each other to ensure the reliability of the cooperation. In order to ensure the air permeability of the bottom, mesh holes are evenly distributed on the leaf flaps 12. In order to control the opening and closing of the leaf flaps 12, a rotating support shaft 121 is arranged on one side of the leaf flaps 12, and both ends of the rotating support shaft 121 are rotatably supported on the box body 11, and a rotating gear 122 is arranged at one end of the rotating support shaft 121. A push-pull rod 123 is arranged on the outside of the box body 11, and a rack 124 cooperating with the rotating gear 122 is arranged on the push-pull rod 123. The push-pull rod 123 moves back and forth to drive the rotating support shaft 121 to rotate, thereby controlling the flipping of the leaf flaps 12. When opened, the tea leaves can fall smoothly to the withering layer 112.

[0053] The height of the withering layer 112 is 55 cm, and the bottom of the withering layer is provided with a leaf-turning plate 12 which is the same as the bottom of the sun-drying layer 111. When it is opened, the tea leaves can smoothly fall to the spreading layer 113. The height of the spreading layer 113 is 45 cm, and the bottom of the spreading layer 113 is provided with a 16-mesh screen conveyor belt 18 to spread the buds and leaves with cold air. After spreading, the buds can be discharged through the screen conveyor belt 18. In order to reduce the phenomenon of buds colliding and breaking with the trough edge during the discharging process, the spreading layer 13 is provided with nano-plastic soft trough edges 1131 inclined inward by 7-9 degrees on both sides of the screen conveyor belt 18, so that the buds and leaves after spreading can be gathered and discharged in a soft contact manner.

[0054] A foldable movable frame 13 is provided on the top of the sun drying layer 111, and the movable frame 13 includes a group of mounting beams 131 located above the sun drying layer 111 and support rods 132 located on both sides of the mounting beams 131. The mounting beams 131 are arranged 20-30cm above the sunlight sun drying layer, and photovoltaic panels 14 can be laid on the mounting beams 131 to generate electricity and store electricity, and to block strong light for sun drying of tea leaves. The photovoltaic panels 14 adopt a double-layer light-transmitting structure, including an upper layer of 3.2MM thick ultra-white cloth-textured tempered glass and a lower layer of EVA red film layer. It is preferred to use S3Y-80-DBML double-glass layer solar panels for shading sun drying and photovoltaic power generation and storage. The technical effect produced by using this double-glass layer solar panel is that its light transmittance is good, which is conducive to shading and sun drying of tea leaves. At the same time, the solar panel has high power generation and storage efficiency, and can make full use of solar clean energy. A group of infrared light sources 15 are installed at intervals of 1.5-1.6m below the installation beam 131 for light drying. Orange light sources 16 are arranged at intervals on the top of the withering layer 112, and light withering is performed by the orange light sources 16. In order to improve the utilization rate of the light source and the uniformity of drying, the inner walls of the drying layer 111 and the withering layer 112 are also paved with reflective glass 110 with a stainless steel color. 20-30% of the light can be reflected to the tea leaves in the box for drying and light-heat withering, so that the light source can be further efficiently utilized.

[0055] The photovoltaic panel 14 is connected to a storage battery 17, and the storage battery 17 is electrically connected to the infrared light source 15 and the orange light source 16. Five S3Y-80-DBML double-glass solar panels are arranged on the mounting beam 131 at intervals of 15-20 cm to receive sunlight for power generation and storage, while blocking strong light to avoid burning the buds and leaves, and using the weak light transmitted through the intervals to dry the tea leaves in the sun. The controller, storage battery 17, and inverter are installed on the outside of the box 11, and the unstable current generated by the photovoltaic panel 14 is converted into a current with stable voltage by using the controller and the inverter, and then transmitted to the storage battery 17 for storage and standby.

[0056] The infrared light source includes a first aluminum-based lamp panel 151, two IP-8 type U-shaped carbon fiber ruby ​​quartz heating tubes 152 fixedly arranged on the first aluminum-based lamp panel 151, and a white tempered glass lampshade 153 covering the IP-8 type U-shaped heating tube 152. The technical effect of adding the white tempered glass lampshade 153 to the quartz heating tube 152 is that some infrared light can be filtered to prevent direct infrared light from burning the buds and leaves, and at the same time, the humid hot steam emitted during sun drying can be blocked from damaging the carbon fiber heating tube 52, and the heating tube can be protected to prevent natural bursting.

[0057] The orange light irradiation source 16 includes a second aluminum-based lamp panel 161, two IPCH-8 circular carbon fiber ruby ​​quartz heating tubes 162 fixedly arranged on the second aluminum-based lamp panel 161, and a yellow tempered glass lampshade 163 covering the IPCH-8 heating tubes 162, so as to convert infrared light into orange light to irradiate the light source 16. The three orange light irradiation sources 16 are arranged above the photothermal withering layer 112 in the middle layer at an interval of 1.8 m, so as to simulate the morning sunlight for photothermal withering indoors.

[0058] The outer side of the box body 11 is also provided with a hot and cold air unit 19, which provides hot and cold air for the sun drying layer 111 and the withering layer 112, and provides cold air for the spreading layer 113. The hot and cold air unit 19 includes a hot and cold air blower 196, a temperature and humidity detector 197, and an intelligent controller 198. The hot and cold air blower 196 is a YDM-P50Y-D hot and cold air blower, which can provide hot air of 40-50°C; and can also provide cold air of 8-10°C through its refrigeration device. In order to achieve classified blowing, the hot and cold air unit 19 is provided with a first cold air duct 191, a second cold air duct 192 and a third cold air duct 193, and is also provided with a first hot air duct 194 and a second hot air duct 195. The first cold air pipe 191 is provided with two outlets, and the outlets are arranged at the front and rear ends of the sun drying layer 111, respectively. The temperature of the sun drying layer is adjusted by blowing cold air convection to prevent the buds and leaves from turning red due to excessive heat. The outlet of the first hot air pipe 194 is arranged at the front end of the sun drying layer, and is opened when the sun drying layer needs to be heated to solve the problem of too low temperature of the sun drying layer.

[0059] The air outlets of the second cold air duct 192 and the second hot air duct 195 are arranged at the front end of the withering layer 112. The hot air duct is used for heating and the cold air duct is used for cooling to adjust the temperature and humidity of the light-heat withering, so that the buds and leaves are in a suitable withering environment, which makes the leaves soft, and at the same time enhances the activity of the biological enzymes in the buds and leaves, which promotes the decomposition and transformation of the starch, protein, insoluble protopectin and other substances contained therein, and further optimizes the quality of tea leaves. The third cold air duct 193 is provided with two, and its air outlets are arranged at the rear end of the green layer 113 respectively. By blowing cold air to reduce the leaf temperature, the sunlight and hot air are emitted, and the yellowing and reddening of the buds and leaves are prevented. It can also be used to blow cold air from the rear end to promote the smooth discharge of the buds and leaves. The hot and cold air unit 19 is preferentially connected to the battery 17, and the electricity generated by the photovoltaic panel 14 is used to drive the motor to produce hot and cold air. When the electricity generated by the solar panel is insufficient, an external power supply is used to drive the motor to produce hot and cold air. The temperature and humidity detector 197 is a JT-M300 three-in-one air temperature, humidity and oxygen sensor. The three sensor probes are installed in the middle of each layer so as to be connected to the intelligent controller for control. The intelligent controller 198 is a PLC intelligent control device. The hot air temperature, hot air volume, cold air temperature and cold air volume can be set by the program control cabinet and touch screen, and intelligent control can be performed according to the signal detected by the temperature, humidity and oxygen three-in-one sensor.

[0060] A set of sawtooth stirrers 114 that can rotate forwards or backwards are arranged at intervals on the withering layer 112 and the spreading layer 113. The sawtooth stirrers 114 are made of pine wood. By rotating forwards or backwards, the buds and leaves are stirred manually to make them wither and spread evenly. The benefits of using pine wood stirrers are that they can reduce the breakage of buds and leaves and add pine wood fragrance to optimize quality.

[0061] The discharging end of the green layer 113 is connected to the photothermal intelligent green shaking machine 2. Figures 9 to 12As shown, the feed end of the photothermal intelligent tea-shaking machine 2 is provided with a weighing conveyor 212, and the weighing conveyor 212 includes a feed hopper 2126 located below the discharge end of the tea-spreading layer 113 for receiving the tea leaves coming out of the tea-spreading layer 113, a weighing conveying trough 2123 located below the feed hopper 2126, and a mesh conveyor belt 2121 docked with the discharge end of the weighing conveying trough 2123. A weighing device 2124 is provided at the bottom of the weighing conveying trough 2123, and a weighing conveyor belt 2125 is provided in the weighing conveying trough 2123. The weighing is completed by the weighing device 2124 and the weighed tea leaves are output through the weighing conveyor belt 2125. The weighing conveyor 212 includes a screen conveyor belt 2121, which is a 10-12 mesh stainless steel screen conveyor belt and conveys tea leaves upward at an inclined angle of 30-32 degrees. An exciter 2122 is provided below the screen conveyor belt 2121. The screen conveyor belt 2121 vibrates while conveying tea leaves upward, and uses the stainless steel screen to screen out mud, dust, insect bodies and other debris entrained in the tea leaves, and inputs the dry and clean buds and leaves into the shaking drum.

[0062] The photothermal intelligent shaking machine 2 includes a shaking machine frame 21, a shaking drum 22 rotatably installed on the shaking frame 21, a driving device 213 for driving the shaking drum 22 to rotate, an infrared lamp 23 and an illumination lamp 24 arranged in the shaking drum 22, a temperature sensor 27, a humidity sensor 28, and a control display screen 29 and a timing device 210.

[0063] The green shaking drum 22 is 2.8M long and 0.8M in diameter. One end of the green shaking drum 22 is a feeding end 225, and the other end is a discharging end 226. The green shaking drum 22 is a two-layer structure, with an inner layer of a bamboo strip layer 221 and an outer layer of a stainless steel layer 222. Laser micropores 2221 with an aperture of 100 mesh are evenly distributed on the stainless steel layer 222. The use of bamboo strips and laser microporous stainless steel drum bodies can not only utilize the "shaking cage" of the bamboo inner wall to destroy the cell structure of the leaf edge for efficient green shaking, but also utilize the laser microporous stainless steel outer wall to emit green moisture, and can also solve the problem that the drum is easily deformed by light and heat high temperature.

[0064] The shaking drum 22 is provided with a central axis 223, and both ends of the central axis 223 are fixedly supported on the shaking frame 21. In order to allow the shaking buds and leaves to receive balanced light, three finger-shaped leaf-turning claws 224 are also installed on the central axis to turn the buds and leaves for light-transmitting shaking. In order to enable the shaking drum to discharge tea smoothly, the shaking frame 21 includes a front support leg 2101 and a rear support leg 2102. The middle position of the front support leg 2101 is provided with an adjustment cylinder 2103 for adjusting the height of the front support leg 2101. The tilt angle of the shaking drum 22 is adjusted by adjusting the cylinder 2103, thereby facilitating discharge.

[0065] The driving device 213 includes a stepless speed regulating motor 2131, a driving gear 2132, and a driven gear 2133. The stepless speed regulating motor 2131 drives the driving gear 2132 to rotate, and drives the green shaking cylinder 22 to rotate under the action of the driven gear 2133. The stepless speed regulating motor 2131 is convenient for speed adjustment, so as to shake the green tea at different speeds.

[0066] The infrared lamp 23 is a far-infrared carbon fiber electric heating lamp tube, which is embedded in the middle part of the central axis 223. The illumination lamp 24 is a GE infrared lamp, and there are two of them, which are installed on the central axis 223 and located on both sides of the infrared lamp 23, one is 50 cm away from the feed port, and the other is 60 cm away from the discharge port. Together with the infrared lamp 23 on the central axis, they form a three-dimensional light and heat space to provide light and heat for the tea leaves to shake. In order to prevent the infrared lamp 23 and the illumination lamp 24 from being damaged by collision, they are also wrapped with a layer of quartz cover 214 for protection to ensure normal light and heat generation. In order to facilitate the adjustment of the functions of the infrared lamp 23 and the illumination lamp 24, so as to achieve different temperatures and light intensities, the infrared lamp 23 and the illumination lamp 24 are connected with an adjustment switch 25 for adjusting the power to meet the needs of shaking various buds and leaves with different brightness and temperature.

[0067] In order to discharge the hot and humid air in the shaking drum 22 in time, the feed end 221 is also provided with a variable frequency blower 26 for blowing air to the shaking drum 22. The trumpet-shaped air outlet of the blower 26 is installed 15-20 cm below the central axis 223 of the shaking drum 22 and blows air in the shaking drum 22 in a forward direction at a wind volume of 100-125 cubic meters / min. On the one hand, it blows the buds and leaves to dissipate heat, and at the same time, it also discharges the green humid air generated during the light and heat shaking. A wind speed sensor 211 is also provided. The wind speed sensor 211 is installed in the middle of the trumpet-shaped air outlet. Its function is to detect the wind speed and transmit the detected wind speed signal to the control display screen 29, and the air volume is controlled by the program-controlled fan speed.

[0068] The temperature sensor 27 is an STT-R type temperature sensor, which is installed in the middle part of the shaking drum and connected to the control display screen 29 to adjust the temperature inside the shaking drum. The humidity sensor 28 is an MH-8823L type humidity sensor, which is installed in the middle part of the shaking drum corresponding to the temperature sensor, and connected to the control display screen 29 to adjust the humidity inside the shaking drum. The timing device 210 is an OHR-B200-AX / 1 / X / XA type intelligent digital display timer to perform timed shaking operations. The control display screen 29 is an LED display screen controller, which is respectively connected to the weighing device 2124, the driving device 213, the wind speed sensor 211, the temperature sensor 27, the humidity sensor 28, and the timer 210, which sets the weighing weight of the tea leaves, the rotation speed of the shaking drum, the shaking time, the temperature, humidity, dehumidification air volume and other technical parameters inside the shaking drum, so as to perform intelligent light and heat shaking.

[0069] like Figures 13 to 19 As shown, the tea-fixing unit 3 includes an electromagnetic tea-fixing drum 31 and a hot air tea-fixing slot 32 connected to the discharge port of the electromagnetic tea-fixing drum 31, and tea leaves are fixed by the electromagnetic tea-fixing drum 31 and the hot air tea-fixing slot 32, respectively. A feeding impurity removal conveyor belt 33 connected to the discharge end of the shaking drum 22 is also provided at the feeding end of the electromagnetic tea-fixing drum 31 to remove impurities from the tea leaves. An intelligent control device 34 is also provided for intelligent control. A humid hot steam recovery heating and purification device 325 is also provided on the hot air tea-fixing slot 32, and the humid hot steam recovery heating and purification device 325 quickly absorbs humid hot gas and recycles it.

[0070] Specifically, the feeding and impurity removal conveyor belt 33 is a 10-12 mesh stainless steel mesh conveyor belt, which is tilted upward at 8-10 degrees as a whole, and a stainless steel trumpet-shaped feeding hopper 333 is arranged above the feeding end. An exciter 331 is also arranged below the feeding and impurity removal conveyor belt 33, and the feeding and impurity removal conveyor belt 33 is driven to vibrate by the exciter 331, so as to screen out the insect eggs, fibers, broken tea powder, dust and other debris entrained in the inclined buds and leaves.

[0071] The feeding impurity removal conveyor belt 33 is also provided with two magnetic bars 332, one of which is horizontally arranged at the feeding end of the feeding impurity removal conveyor belt 33, and the other magnetic bar 332 is horizontally arranged at the discharge port of the feeding impurity removal conveyor belt 33, and rotates at 25-30r / min, and removes the magnetic metal rust impurities entrained in the tea leaves through two magnetic suction actions. At the same time, the vibration action of the conveyor belt 33 is also used to screen out the insect eggs, fibers, broken tea powder, dust and other debris entrained in the buds and leaves, and finally the cleaned buds and leaves are input into the electromagnetic tea-killing drum 31 for tea-killing.

[0072] The electromagnetic killing roller 31 includes a killing roller 311 and an electromagnetic heater 312 for heating the killing roller 311 .

[0073] The green-fixing drum 311 is a cylindrical conical structure with a length of 1.2-1.5m and a diameter of 60cm, with a cylindrical front end and a conical rear end, so as to collect the moist and hot air and the green-fixing leaves for centralized output through the conical structure of the rear end. In order to make the buds and leaves fix green evenly, the green-fixing drum 311 is designed as a double-layer structure, the inner layer of which is made of stainless steel material, and the advantage of fast thermal conductivity is used to promote the green-fixing of the buds and leaves, and the outer layer is made of composite titanium steel material, and the advantage of good thermal insulation is used to prevent the heat and temperature in the drum from being dissipated, so that the buds and leaves are kept warm and fixed. In order to promote the smooth input of the buds and leaves into the hot air fixing groove 32 after electromagnetic fixing, the green-fixing drum 311 is arranged with a downward tilt of 3-5° as a whole, and the clockwise rotation force of the drum body is used to push the tea leaves and the moist and hot air into the hot air fixing groove 32 together.

[0074] The electromagnetic heater 312 includes a U-shaped heating groove 3121 supported below the green-fixing roller 311, and an electromagnetic coil 3122 arranged in the U-shaped heating groove 3121. The electromagnetic coil 3122 is divided into two groups, which are laid at the bottom of the U-shaped heating groove 3121 with an interval of 4.5-5.5 cm. The electromagnetic heat energy generated is used to directly radiate and heat the green-fixing roller, which can overcome the technical limitations of conventional electric heating tube heaters that easily lose heat energy, and can increase the heat energy conversion rate by 5-7%, and the heat energy utilization rate by about 10%. The U-shaped heating groove 3121 is a double-layer structure, the inner layer is made of composite titanium steel material, and the outer layer is wrapped with silicate fiber asbestos material. One-third of the green-fixing roller body 311 is embedded in the U-shaped heating groove 3121, which can prevent the electromagnetic radiation heat energy from expanding outward, so as to reduce heat loss and improve thermal efficiency.

[0075] The hot air sterilization tank 32 includes a tank body 321 and an auger leaf turner 322 disposed in the tank body 321. The tank body 321 is made of cast iron material, with a tank length of 2.8 meters, a tank width of 0.65 meters, a tank height of 1.5 meters, and a tank depth of 0.8 meters. The bottom of the tank body 321 is a 10-12 mesh stainless steel screen, which carries the buds and leaves for hot air sterilization. At the same time, the vibrator 331 is used to drive the stainless steel screen to vibrate to screen out the burnt tea powder and tea ash debris produced during sterilization. In order to facilitate the smooth output of the buds and leaves after hot air sterilization, the tank body 321 is tilted downward at 6-7 degrees as a whole, and the vibration of the tank bottom and the thrust of the auger leaf turner 322 are used to move the tea leaves toward the discharge port for discharge.

[0076] A slot cover 323 is provided above the slot body 321, which is made of transparent quartz glass and has the same length and width as the tea-fixing slot body. A suction fan 324 is connected to the slot cover 323, and a wet hot gas recovery, heating and purification device 325 is connected to the suction fan 324. When hot air is used for tea-fixing, the slot body 321 is covered so that the wet hot gas can be sucked into the wet hot gas recovery, heating and purification device 325 through the suction fan 324 for heating, conversion, purification and recycling, so as to save energy, reduce emissions, improve thermal efficiency and optimize tea quality. At the same time, the color change of the tea leaves in hot air tea-fixing can be observed through the transparent slot cover 323, so as to better control the tea-fixing quality.

[0077] The auger leaf turner 322 is made of stainless steel, 2.6 meters long, and has a hollow cylindrical microporous air cavity structure, that is, a hot air cavity 3222 is provided in the auger leaf turner 322, and a group of air outlet holes 3223 connected to the hot air cavity 3222 are evenly distributed on the auger leaf turner 322, and the air outlet holes 3223 are 80-100 mesh micropores. The auger leaf turner 322 is arranged along the length direction of the tank body 321, arranged in the center of the tank body 321, and its cylindrical diameter is 6-8cm. One end of the hot air cavity 3222 is connected to the hot air output pipe of the moist hot gas recovery heating and purification device 325, and the hot air is blown into the fixing tank through the air outlet holes 3223 to perform hot air fixing.

[0078] The auger leaf turning device 322 is provided with 6 leaf turning claws 3221 at intervals. The leaf turning claws 3221 adopt a tooth structure, are arranged at intervals of 35-40cm, and are cross-arranged on the auger leaf turning device 322. Driven by the servo motor, the leaf turning claws rotate clockwise to turn the tea leaves for hot air withering. At the same time, the moist hot air is also lifted up and volatilized, so that the suction fan can suck it into the moist hot air recovery, heating and purification device 325 for heating, conversion, purification and recycling.

[0079] The wet hot gas recovery heating and purification device 325 includes a cylindrical shell 3251, a heating chamber 3252 and a purification chamber 3253 arranged in the shell 3251, and a hot air output device 3257. The shell 3251 is a cylinder made of titanium steel with a length of 1.5-1.8 meters and a diameter of 50-55 cm. The heating chamber 3252 and the purification chamber 3253 are placed in the shell 3251 to recover the wet hot gas generated during the electromagnetic hot air killing. First, it is converted into hot air through the electric heating pipe of the heating chamber 3252, and then the odor impurities are eliminated by the purification chamber 3253, and then the cleaned hot air is returned to the electromagnetic killing drum 31 and the hot air killing tank 32 for heating and killing, so as to achieve energy saving, emission reduction and recycling.

[0080] The slot cover 323 is provided with three suction ducts 3241, which are arranged at intervals of 60-70 cm. The other end of the suction duct 3241 is connected to the suction fan 324. The suction force of the suction motor 324 is used to make the hot and humid air in the slot body 321 enter the heating chamber 3252 and convert it into hot air.

[0081] The heating chamber 3252 is a small cylinder with a length of 0.5-0.6 meters and a diameter of 20-30 cm, arranged at the front end of the housing 3251, and is provided with a group of electric heating pipes 32521, which can convert the moist hot steam into hot air above 95°C and then input it into the purification chamber 3253. In order to prevent the heat energy from dissipating and improve the thermal efficiency, a heat-insulating layer 32522 of asbestos fiber material is also wrapped outside the heating chamber 3252.

[0082] The purification cabin 3253 is a conical cylinder with a length of 0.4-0.5 meters and a diameter of 15-20 cm, which is arranged at a distance of 10-15 cm from the heating cabin 3252. The purification cabin 3253 is equipped with two impurity and odor removal purifiers, namely, fine filtration and ultrafiltration. The fine filtration impurity removal purifier 32531 is a stainless steel laser microporous filter, which first filters the fine impurities entrained in the hot air. The ultrafiltration odor removal purifier 32532 is a silicon carbide ceramic filter, which is arranged at a distance of 8-10 cm in front of the conical cylinder. The conical cylinder can be used to collect hot air, and then it can be used to filter and remove the entrained smoke and burnt odor.

[0083] The hot air output device 3257 includes a blower 32571, a flow valve 32572 and a group of hot air output pipes. The blower 32571 is a high-pressure vortex blower, which is arranged between the heating chamber 3252 and the purification chamber 3253. It blows the converted hot air into the purification chamber 3253, and outputs it after being purified by the stainless steel laser microporous filter and the silicon carbide ceramic filter. There are 4 flow valves 32572 arranged at the outlet of the purification chamber 3253, which are respectively connected to 4 hot air output pipes, which distribute and control the flow of hot air and output it to the electromagnetic killing green drum 31 and the hot air killing green tank 32.

[0084] The hot air output pipe includes a first hot air output pipe 3254 whose air outlet is located at the discharge end of the fixing drum 311 and blows toward the inner wall of the fixing drum 311, a second hot air output pipe 3255 whose air outlet is located at both sides of the feeding end of the trough body 321 and blows toward the two side walls of the trough body 321, and a third hot air output pipe 3256 connected to one end of the auger leaf turner 322; the first hot air output pipe 3254 blows hot air in the reverse direction toward the inner wall of the fixing drum 311 to blow away the buds and leaves stuck on the drum wall; the third hot air output pipe 3256 is connected to the hot air chamber 3222 of the auger leaf turner 322, and blows hot air into the fixing trough through the air outlet 3223 to perform hot air fixing; the two second hot air output pipes 3255 blow hot air in the forward direction toward the left and right sides of the trough wall, which not only forms a three-dimensional hot air space for fixing, but also can blow away the buds and leaves stuck on the trough wall to prevent carbonization from affecting the fixing quality.

[0085] The intelligent control device 34 is a PLC program-controlled touch screen, which is connected to the feeding and impurity removal conveyor 33, the electromagnetic killing drum 31, the hot air killing trough 32, and the moist hot air recovery and purification heating device 325. It can intelligently set the rotation speed of the magnetic bar, the vibration frequency of the vibrating screen, the rotation speed of the killing drum, the electromagnetic killing temperature, the electromagnetic killing time, the rotation speed of the "auger leaf turner", the hot air killing temperature, the hot air blowing volume, the vibration frequency of the impurity removal vibrating screen, and the hot air killing time, so as to perform intelligent electromagnetic hot air killing and vibration impurity removal and transportation.

[0086] like Figures 20 to 26 As shown, the kneading enzymatic hydrolysis and drying machine group 4 includes a group of kneading machines 41 arranged side by side, a deblocking enzymatic hydrolysis machine 42 arranged below the kneading machine 41, and a double hot air dryer 43 connected to the discharge end of the deblocking enzymatic hydrolysis machine 42, and the double hot air dryer 43 is provided with a moist hot air recovery, heating and purification device 44.

[0087] The feeding end of the kneading machine 41 is provided with a weighing and conveying device 45 and an enzyme dosing machine 46. The weighing and conveying device 45 includes a feed hopper 451, and the feed hopper 451 and the discharge end of the hot air fixing tank 32 are provided with an elevator 5. A weighing platform 452 is provided below the feed hopper 451, and a lifting conveyor belt 453 is docked with the weighing platform 452, and the lifting conveyor belt 453 is a 10-mesh stainless steel screen inclined conveyor belt. The feed hopper 451 is a stainless steel cylinder, arranged above the feed port of the lifting conveyor belt 453, and the discharge port of the feed hopper 451 is provided with a discharge valve 4511 for controlling the falling of the material, and the weighing platform 452 includes a weighing device 4521 and a weighing conveyor belt 4522 provided above the weighing device 4521. When the weighing device 4521 senses that the weight of the tea leaves on the weighing conveyor belt 4522 meets the weight set by the rolling machine, the discharge valve 4511 is closed, and the weighing conveyor belt 4522 moves to deliver the tea leaves to the lifting conveyor belt 453.

[0088] At the front of the feed hopper 451 of the lifting conveyor belt 453, there is an EJH-321 type food metal debris detection and removal machine 454. The metal debris detection and removal machine 454 includes an automatic metal detection and removal device 4541 and an ion wind suction device 4542, which can automatically remove metal, hair, dust and debris entrained in the buds and leaves, so that clean and hygienic tea leaves can be input into the enzyme batching machine 6 for spray enzyme addition.

[0089] The enzyme adding and batching machine 46 comprises a conveying carriage 461 arranged above the kneading machine 41 , a batching conveyor belt 462 , an enzyme adding device 464 , a stirrer 465 , a feeder 463 , and a distributor 466 .

[0090] The conveying carriage 461 is a trough structure with a length of 3.2m, a width of 0.8m and a depth of 0.6m, installed above the rolling machine 41, and conveys the buds and leaves in a linear motion. The batching conveyor belt 462 is a 12-14 mesh stainless steel screen, which is installed at the bottom of the conveying carriage 461, and feeds the buds and leaves into the feeder 463.

[0091] The enzyme adding device 464 is an XD-10 type liquid sprayer, which is arranged at the feed port of the conveying carriage 461, and can spray the added biological enzyme solution into the buds and leaves in a cloud-like manner. The agitator 465 is provided with two, one is pine tooth-shaped, and the other is pine five-finger-shaped, which are arranged horizontally on the conveying carriage 461 with a front and rear interval of 70-80cm. The tooth-shaped agitator 465 located in the front turns the leaves in a clockwise direction, and the five-finger-shaped agitator 465 at the rear turns the leaves in a counterclockwise direction, so that the biological enzyme solution and the buds and leaves can be better contacted together. The feeder 463 is cylindrical and arranged at the discharge end of the batching conveyor belt 462, and the buds and leaves are sent to the kneading barrel by it. The distributor 466 is pine fan-shaped, arranged below the feeder 463, and the enzyme-added buds and leaves are evenly scattered into the kneading barrel in a "spreading" manner.

[0092] The kneading machine 41 is arranged in parallel with 5 units, which are 6CR-55 type CNC kneading machines. In order to avoid the adverse antagonistic reaction between the exogenous biological enzyme solution and the metal ions, the metal kneading tea barrel 411, the kneading plate 412, and the kneading cover 413 are changed to maple wood, and the copper "ribs" are changed to bamboo. In order to facilitate the biological enzyme solution and the hot air to enter the kneading tea barrel 411 for secondary enzyme hot air kneading, a drip irrigation enzyme adder 415 is set on the kneading cover 413 to add the biological enzyme solution, and a first hot air branch pipe 414 is also connected. The liquid outlet of the drip irrigation enzyme adder 415 is located below the air outlet of the first hot air branch pipe 414, so as to blow away the exogenous enzyme and sprinkle it more evenly on the tea leaves in the kneading barrel 411.

[0093] In order to facilitate the distribution of hot air to each kneading barrel, a hot air heating distribution box 47 is arranged beside the kneading machine 41. The hot air heating distribution box 47 consists of a rectangular stainless steel box 471 and an electric heating pipe 472 arranged in the stainless steel box 471, and is connected to the air outlet main pipe of the wet hot air recovery heating purification device 44. There are 4 air outlets on the front of the box, each of which is equipped with a first hot air branch pipe 414 connected to the 5 kneading covers. The first hot air branch pipe 414 is provided with a control valve.

[0094] The hot air is input into the five tea kneading barrels through the control valve on the first hot air branch pipe 414. In order to solve the problem that the moist hot air recovery heating and purification device cannot provide hot air in time or the hot air temperature is too low, the electric heating pipe 472 in the hot air heating distribution box 47 can be started to heat up to ensure that high-temperature hot air is provided for enzyme kneading.

[0095] The deblocking enzymolysis machine 42 comprises a deblocking enzymolysis tank 421 and a vibrating screen 422 arranged at the bottom of the deblocking enzymolysis tank 421. The deblocking enzymolysis tank 421 has a shell made of cast iron and an inner wall made of maple wood. The tank body is 3.8 m long, 1.1 m wide and 0.8 m deep. In order to achieve efficient hot air deblocking and enzymolysis reaction, a second hot air branch pipe 423 is arranged at the front end of the deblocking enzymolysis tank 421, a second hot air branch pipe 423 is arranged at the rear end of the tank body, three third hot air branch pipes 424 are arranged crosswise at intervals of 70 cm on the left side of the deblocking enzymolysis tank 421, and three third hot air branch pipes 424 are arranged crosswise at intervals of 80 cm on the right side of the tank body, and three fourth hot air branch pipes 425 are arranged at intervals of 75 cm below the vibrating screen 422 at the bottom of the deblocking enzymolysis tank 421. The second hot air branch pipe 423, the third hot air branch pipe 424 and the fourth hot air branch pipe 425 are all connected to the hot air heating distribution box 47, and the hot air heating distribution box 47 is connected to the air outlet main pipe of the wet hot air recovery heating purification device 44. The hot air is distributed through the hot air heating distribution box 47 to form a three-dimensional hot air space for deblocking and enzymolysis reaction of tea leaves. The deblocking enzymatic hydrolysis tank 421 is arranged below the rolling machine 41 so that the rolled tea leaves can automatically fall into the tank. The concave and convex vibration force of the vibrating screen 422 at the bottom of the tank, the forward and reverse turning force of the deblocking robot 426 arranged in the deblocking enzymatic hydrolysis tank 421, and the blowing force of the three-dimensional hot air are used to first break up the tea lumps, loosen the tea leaves, emit moist heat, dry some moisture, and then carry out the hot air enzymatic hydrolysis reaction.

[0096] Further, the vibrating screen 422 is a 14-mesh stainless steel screen, which is arranged at the bottom of the deblocking enzymolysis tank 421. The vibrating screen 422 is connected to a vibrator 427, which is used to generate a frequency of 300-400 times / min to make it a vibrating screen, dissolve the rolled tea balls, and remove the broken tea powder. In order to improve the efficiency of deblocking and enzymolysis reaction, the vibrating screen 422 is also made into an uneven wavy structure, and the vibration of the convex and concave waves is used to promote the bouncing movement of the rolled tea balls to deblock, and to screen out the broken tea powder generated during the rolling, or in a slow vibration mode, the deblocked tea leaves are subjected to a dynamic enzymolysis reaction on the screen.

[0097] Further, the deblocking robot 426 includes a rotating shaft 4261, a group of serrated turning pieces 4262 arranged on the rotating shaft 4261, and a total of three groups of deblocking robots 426 are installed in the deblocking enzymatic hydrolysis tank 421 at intervals of 1.1m, and turn over the kneaded mass on the vibrating screen 422 in a forward and reverse rotation manner at 28-30 times / min. In order to reduce the gripping force of the deblocking robot 426 on the tea leaves when it is rotated forward and reversely, it is made of pine wood and wrapped with latex gloves, so as to reduce the breakage of the buds by a soft turning manner.

[0098] One end of the deblocking enzymolysis tank 421 is provided with a fixed support leg 4211, and the other end is provided with a movable support leg 4212 that can be lifted and lowered. The inclination angle of the deblocking enzymolysis tank 421 is adjusted by the up and down movement of the movable support leg 4212. The movable support leg 4212 is preferably driven and adjusted by a lifting hydraulic cylinder. When deblocking and screening tea powder, the movable support leg 4212 is used to lower the rear end of the tank body so that the tank body is inclined upward at a slope of 3-4°, forcing the tea group to deblock and screen the powder in a climbing and bouncing manner. During the enzymolysis reaction, the tank body is laid flat using the movable support leg 4212 so as to perform a horizontal dynamic enzymolysis reaction. When discharging, the rear end is lifted using the movable support leg 4212 so that the tank body is inclined downward at 5-6°, which promotes the smooth discharge of tea leaves on the vibrating screen.

[0099] The dual hot air dryer 43 includes a drying box 431 and an electric heating device 432. The drying box 431 is a box of a 6CH-20 tea drying machine, and a 5-layer circulating chain plate 433 from bottom to top is arranged in the drying box 431. In order to realize dual hot air drying of tea leaves, two hot air inlets are arranged on the drying box 431. The first hot air inlet is the electric hot air inlet of the machine, which is arranged below the first layer of circulating chain plate 433 at the bottom of the drying box 431 to blow hot air to the upper 2-5 layers of circulating chain plates to dry the tea leaves; the second hot air inlet is connected to the fifth hot air branch pipe 434, which is a recycling and purification hot air inlet, and is arranged at the third layer of circulating chain plates of the drying box 431 to blow hot air to the upper 4-5 layers of circulating chain plates to dry the tea leaves. The problem of low temperature of the upper hot air and slow drying speed is solved by supplementing hot air. The deblocked tea leaves are fed to the feeding port of the fifth-layer circulating chain plate by the inclined conveyor belt 48, and then run upward layer by layer to dry the internal and external water in the tea leaves, and at the same time, the volatilized wet hot water vapor is recovered, heated, purified and reused.

[0100] The electric heating device 432 is further composed of an electric heating pipe 4321, a hot air chamber 4322, a hot air pump 4323, and a controller 4324. The hot air chamber 4322 is a rectangular chamber made of composite steel, arranged below the drying box 431, and uses the electric heating pipe 4321 in the chamber to heat it to a high temperature of 150-250°C, and then the high temperature hot air is input into the first hot air inlet of the closed box through the hot air pump 4323 to dry the tea leaves. The controller 4324 includes a temperature sensor and a controller, and the hot air temperature is set by the controller, and the actual temperature detected by the temperature sensor arranged on the third layer of the circulating chain plate is used for regulation to ensure that the temperature of the dried tea leaves is the same as the set hot air temperature.

[0101] The wet hot air recovery, heating and purification device 44 includes a recovery cover 441 located on the top of the drying box 431 , a heating and purification cabin 442 , and a hot air output device 443 .

[0102] The recovery cover 441 is a long trumpet-shaped tempered glass, which covers the top of the drying box 431 to prevent the humid hot gas from radiating and losing, and at the same time recovers it and transports it to the heating purification cabin 442 for heating and purification and reuse. In order to prevent the dried tea ash from mixing into the humid hot gas recovery and purification heating device 44 and deteriorating into a smoky smell that affects the quality of tea leaves, a cylindrical impurity removal filter chamber 444 is connected to the outlet of the recovery cover 441, and an 80-100 mesh stainless steel filter screen is provided in the impurity removal filter chamber 444 to prevent the tea ash from passing through, so that it becomes impurity-free humid hot gas and enters the heating purification cabin 442.

[0103] A dual-purpose blower 445 is provided between the impurity removal filter chamber 444 and the heating purification chamber 442, which can be switched to a blowing mode or a suction mode by adjusting a valve to perform suction or blowing operations. One end of the air inlet pipe is connected to the air outlet of the impurity removal filter chamber 444, and by switching the suction valve, the wet hot water vapor after impurity removal in the filter chamber is sucked into the heating purification chamber 442 for heating and purification to form clean hot air.

[0104] The heating purification cabin 442 is a titanium steel cylinder with a length of 1.2 m and a diameter of 40 cm. A group of electric heating pipes 4421 is provided 30 cm at the rear of the cylinder to convert the moist heat vapor into high-temperature hot air of 80-90°C, which is then finely filtered and purified through a 300-mesh stainless steel laser microporous filter 4422 provided 45 cm at the front of the cylinder to become clean hot air.

[0105] The hot air output device 443 is a stainless steel spherical tank, which is connected to the heating and purification cabin 442 to receive and store clean hot air. Three hot air output pipes 4431 are set on the spherical tank, and the No. 1 hot air output pipe 4431 is connected to the fifth hot air branch pipe 434, leading to the second hot air inlet at the third layer of the circulating chain plate of the drying box for hot air heating. The No. 2 hot air output pipe 4431 is connected to the hot air heating distribution box 47 of the kneading machine to provide hot air for hot air kneading. The No. 3 hot air output pipe 4431 is connected to the hot air heating distribution box 47 of the deblocking enzymolysis tank to provide hot air for three-dimensional hot air deblocking sieve powder and enzymolysis reaction. In order to make the clean hot air in the spherical tank heat-insulating and output, a layer of asbestos fiber insulation layer is also wrapped outside the tank to prevent the heat and temperature in the spherical tank from leaking out.

[0106] The present invention is described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-mentioned methods. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention; or the above concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A continuous production line for primary processing of Da Hong Pao tea, characterized by: It comprises a sun-drying, withering and spreading machine (1), a light-heat intelligent shaking machine (2), a fixing machine unit (3) and a rolling, enzymatic hydrolysis and drying machine unit (4) which are connected in sequence through a conveying device; The sun drying, withering and spreading machine (1) comprises a box (11), wherein the box (11) is provided with a sun drying layer (111), a withering layer (112) and a spreading layer (113) in sequence from top to bottom; a foldable movable frame (13) is provided on the top of the sun drying layer (111), a photovoltaic panel (14) is laid on the top of the movable frame (13), and an infrared light source (15) for irradiating the sun drying layer (111) is installed below the movable frame (13); an orange light source (16) is provided on the top of the withering layer (112), and a hot and cold air unit (19) is also provided, and the temperature of the sun drying layer (111), the withering layer (112) and the spreading layer (113) is adjusted by the hot and cold air unit (19); The fixing unit (3) comprises an electromagnetic fixing drum (31) and a hot air fixing tank (32) connected to the discharge port of the electromagnetic fixing drum (31); The kneading enzymatic hydrolysis drying machine group (4) comprises a group of kneading machines (41) arranged side by side, a deblocking enzymatic hydrolysis machine (42) arranged below the kneading machines (41) and a double hot air drying machine (43) connected to the discharge end of the deblocking enzymatic hydrolysis machine (42), the kneading machine (41) comprises a kneading barrel (411), a kneading plate (412) and a kneading cover (413); the kneading cover (413) is connected to a first hot air branch pipe (414) for blowing hot air into the kneading barrel (411).

2. The continuous production line for primary processing of Da Hong Pao tea as claimed in claim 1, characterized in that: An open box structure is provided above the sun drying layer (111); a group of openable leaf flaps (12) are provided at the bottom of the sun drying layer (111); two adjacent leaf flaps (12) are overlapped with each other; and a leaf flap (12) identical to the bottom of the sun drying layer (111) is provided at the bottom of the withering layer (112).

3. The continuous production line for primary processing of Da Hong Pao tea according to claim 1, characterized in that: The inner walls of the sun drying layer (111) and the withering layer (112) are provided with reflective glass (110) of stainless steel color; and a group of sawtooth agitators (114) that can rotate forward and backward are also arranged at intervals on the withering layer (112) and the spreading layer (113).

4. The continuous production line for primary processing of Da Hong Pao tea according to claim 1, characterized in that: The photothermal intelligent shaking machine (2) includes a shaking drum (22), and an infrared lamp (23) and an illumination lamp (24) are also arranged in the shaking drum (22). The infrared lamp (23) and the illumination lamp (24) are connected to an adjustment switch (25) for adjusting the power of the infrared lamp (23) and the illumination lamp (24). The feed end (221) is also provided with a hair dryer (26) for blowing air to the shaking drum (22). A temperature sensor (27) and a humidity sensor (28) are arranged in the shaking drum (22), and a control display screen (29) is also provided. The control display screen (29) receives signals from the temperature sensor (27) and the humidity sensor (28), and controls the operation of the adjustment switch (25) and the hair dryer (26).

5. The continuous production line for primary processing of Da Hong Pao tea according to claim 1, characterized in that: The electromagnetic killing drum (31) comprises a killing drum (311) and an electromagnetic heater (312) for heating the killing drum (311); the feeding end of the killing drum (311) is high, the discharging end is low, and the whole is inclined at 3-5 degrees; the hot air killing trough (32) comprises a trough body (321); the feeding end of the trough body (321) is high, the discharging end is low, and the whole is inclined at 6-7 degrees; an auger leaf turning device (322) is arranged in the trough body (321), the auger leaf turning device (322) is arranged along the length direction of the trough body (321), and a group of leaf turning claws (3221) are arranged at intervals on the auger leaf turning device (322); a trough cover (323) is arranged above the trough body (321), and a suction fan (324) is connected to the trough cover (323), and a wet hot air recovery, heating and purification device (325) is connected to the suction fan (324).

6. The continuous production line for primary processing of Da Hong Pao tea as claimed in claim 5, characterized in that: The wet hot gas recovery, heating and purification device (325) is provided with a group of hot air output pipes, including a first hot air output pipe (3254) whose air outlet is located at the discharge end of the killing drum (311) and blows toward the inner wall of the killing drum (311), a second hot air output pipe (3255) whose air outlet is located on both sides of the feeding end of the tank body (321) and blows toward the two side walls of the tank body (321), and a third hot air output pipe (3256) connected to one end of the auger leaf turning device (322); a hot air cavity (3222) connected to the third hot air output pipe (3256) is provided in the auger leaf turning device (322), and a group of air outlet holes (3223) connected to the hot air cavity (3222) are evenly distributed on the auger leaf turning device (322).

7. The continuous production line for primary processing of Da Hong Pao tea as claimed in claim 1, characterized in that: The killing roller (311) is a two-layer structure, the inner layer is made of stainless steel material, and the outer layer is made of composite titanium steel material.

8. The continuous production line for primary processing of Da Hong Pao tea as claimed in claim 1, characterized in that: The deblocking enzymatic hydrolysis machine (42) comprises a deblocking enzymatic hydrolysis tank (421), a vibrating screen (422) arranged at the bottom of the deblocking enzymatic hydrolysis tank (421), second hot air branch pipes (423) for blowing hot air toward the deblocking enzymatic hydrolysis tank (421) are arranged at both ends of the deblocking enzymatic hydrolysis tank (421), a group of third hot air branch pipes (424) are arranged at intervals on both sides of the deblocking enzymatic hydrolysis tank (421), and a group of fourth hot air branch pipes (425) are arranged at intervals at the bottom of the deblocking enzymatic hydrolysis tank (421); The dual hot air dryer (43) comprises a drying box (431), an electric heating device (432) arranged at the bottom of the drying box (431), and 5 layers of circulating chain plates (433) are arranged in the drying box (431), which are the 1st to 5th layers from bottom to top, and a fifth hot air branch pipe (434) for blowing hot air upwards is arranged above the third layer of circulating chain plates (433).

9. The continuous production line for primary processing of Da Hong Pao tea as claimed in claim 8, characterized in that: The dual hot air dryer (43) is provided with a wet hot air recovery, heating and purification device (44); the wet hot air recovery, heating and purification device (44) comprises a recovery cover (441) located at the top of the drying box (431), the recovery cover (441) is connected to a heating and purification cabin (442), the heating and purification cabin (442) is connected to a hot air output device (443), and the hot air output device (443) is connected to the first hot air branch pipe (414), the second hot air branch pipe (423), the third hot air branch pipe (424), the fourth hot air branch pipe (425) and the fifth hot air branch pipe (434).

10. The continuous production line for primary processing of Da Hong Pao tea according to claim 1, characterized in that: The feeding end of the kneading machine (41) is provided with a weighing and conveying device (45) and an enzyme dosing machine (46); the kneading cover (413) is provided with a drip irrigation enzyme dosing device (415), and the liquid outlet of the drip irrigation enzyme dosing device (415) is located below the air outlet of the first hot air branch pipe (414).

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