CN115886087A - Processing method for improving color and luster quality of needle-type tea - Google Patents

Processing method for improving color and luster quality of needle-type tea Download PDF

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CN115886087A
CN115886087A CN202211441224.7A CN202211441224A CN115886087A CN 115886087 A CN115886087 A CN 115886087A CN 202211441224 A CN202211441224 A CN 202211441224A CN 115886087 A CN115886087 A CN 115886087A
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China
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spreading
tea leaves
tea
color
belt
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张莹
王杰
陈正明
钟应富
徐泽
邬秀宏
吴全
罗红玉
杨娟
吴雅丽
贺鼎
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Chongqing Academy of Agricultural Sciences
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Chongqing Academy of Agricultural Sciences
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    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/90Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in food processing or handling, e.g. food conservation

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Abstract

The invention provides a processing method for improving the color and luster quality of needle-type tea, which comprises the following steps: s1, selecting raw materials; s2, spreading; s3, deactivating enzyme; s4, rolling; s5, arranging the strips; s6, baking; s7, cold treatment; and S8, packaging. The method provided by the invention can ensure the color of the tea as much as possible in the enzyme deactivating process, promote the reaction of the tea and release fragrance, enable the processing of the needle-shaped tea to be more controllable, and ensure the quality of the tea, particularly the color effect, to be improved by improving the process.

Description

Processing method for improving color and luster quality of needle-type tea
Technical Field
The invention relates to the technical field of agriculture, in particular to the field of tea processing, and specifically relates to a processing method for improving the color and luster quality of needle tea.
Background
Tea is an important component of daily drinks in China, and shape remodeling is mostly finished after fresh tea leaves are picked through a series of processing, so that appearance performance is different. According to the appearance characteristics of dry tea, flat tea such as dragon well, spiral tea such as Biluochun tea, hemispherical tea such as Tieguanyin tea and the like is provided, needle-shaped tea such as needle, such as Junshan silver needle (yellow tea) and pekoe silver needle (white tea) are typical representatives of needle tea, in the process of processing needle tea, the steps of spreading, de-enzyming, rolling, carding, baking and the like are generally needed to be adopted, the prepared tea needs to keep color, fragrance, taste and shape on the aspect of the product so as to maintain the quality of the product, wherein the color is the most visual feedback in the appearance of the tea, and is closely related to the tenderness of raw materials and processing technology; the good tea is required to have consistent color, bright luster, oil, fresh and alive, and the color is often deteriorated due to improper technology in the tea making process except for the factors of the raw materials. Such as spreading environment, enzyme deactivating process, twisting force, strip tidying temperature and the like.
In the step of spreading, the fresh leaves which are picked and transported home are placed for a period of time with certain thickness. The life activity of the tea leaves is carried out within a certain time after the fresh leaves are picked from the tea trees, the respiration of the fresh leaves is strengthened, the compounds are continuously decomposed, and carbon dioxide, water and heat are generated; the fresh leaves can be spread in time, so that the temperature of the fresh leaves can be reduced, and the fresh leaves can be prevented from being covered by the fresh leaves to generate a large number of red stems and red leaves. Partial water in the fresh leaves is dissipated by spreading, the fresh leaves become dark in color and luster, the leaf quality becomes soft, the plasticity of the tea is enhanced, and the shaping of the tea is facilitated; the green removing is a tea making step which destroys and passivates the activity of oxidase in fresh tea leaves at high temperature, inhibits the enzymatic oxidation of tea polyphenol and the like in the fresh tea leaves, prevents the leaves from changing into red, evaporates partial water in the fresh tea leaves, softens the tea leaves, is convenient for rolling and shaping, simultaneously disperses green odor and promotes the formation of good aroma. The tea leaves keep emerald green color, and the finished product has strong fragrance and mellow taste. But the microwave enzyme deactivation heat effect is not fully performed, the volatilization of low-boiling-point aroma substances is not enough, and the purpose of establishing the basic product characteristics of tea flavor, aroma and the like by enzyme deactivation is not achieved; kneading is a process of kneading the fresh leaves which are subjected to water removing or withering into shapes of strips, needles, granules, sheets and the like by hands or machines; the strip treatment is a shaping process of the strip-shaped green tea, and is used for shaping, losing water, showing hair and improving fragrance.
In the prior art, the devices are manufactured respectively, series connection is realized through modes such as transfer personnel or transfer belts, each device can operate tea leaves to be processed independently, and semi-automatic assembly line operation is realized. However, because the existing equipment cannot adopt a better process to match with the existing equipment due to the combination relationship, intelligent blending operation is difficult to form, and the color of the processed tea is not good, so that the better operation process and equipment matched with the process need to be found, for example, the technical scheme of 202111526524.0 provides a scheme capable of improving the color, but the technical scheme mainly adopts a steam green removing machine to avoid scorched leaves, has no better effect on other common tea, and cannot be improved and matched with the existing conventional scheme, and therefore, the process and equipment matched with the existing operation scheme need to be further found.
Disclosure of Invention
Aiming at the problems, the processing method for improving the color and luster quality of the needle-shaped tea is provided, and the needle-shaped tea can ensure the colleague of continuous processing and improve the color and luster quality of the needle-shaped tea by setting a unique processing technology and designing required equipment for the technology.
The technical scheme of the invention is as follows:
a processing method for improving the color quality of needle tea comprises the following steps:
s1: selecting raw materials: the raw material picking requirement is that the raw material is picked from a pollution-free ecological tea garden with the altitude of 500-1000 m; picking time is three months in the lunar calendar, the temperature is 5-20 ℃, and the weather is fine; picking fresh leaves with standard of one bud and one leaf, wherein the length of the bud and the leaf is 0.8-2.5cm; the bud leaves are complete and uniform, and purple leaves, fish leaves and insect pests do not exist;
s2, spreading: spreading freshly picked needle-shaped tea leaves for 4.5h, keeping the ambient temperature at 15-25 ℃, and adopting mesh cloth as a plane for bearing the tea leaves by spreading equipment (1); the plane is of an inclinable structure, and when the moisture content is 55-60%, the tea leaves are gathered and sent to the next step;
s3, fixation: carrying out microwave enzyme deactivation on the fed tea leaves, wherein the microwave enzyme deactivation time is 30s, the tea leaves are required to be turned over integrally in the process, and finally the water content is 45-50%; the green removing equipment is provided with a returning mechanism and a detecting device, and when the color of the tea leaves is found not to meet the requirements, the tea leaves are returned to the green removing inlet for operation again;
s4, rolling: rolling the fed tea leaves by using rolling equipment, and feeding the tea leaves to the next step when the water content is 20-30%;
if the color is not bright enough in S3, abandoning S4 and directly sending to the step S5;
s5, arranging strips: in the step, a reciprocating mechanism is adopted to tidy the needle-shaped tea, the operation time is 1-2min, and when the water content is 15-18%, the next step is carried out;
s6, baking: drying and baking with hot air to reduce the water content of the tea leaves to 4.5-5.5%, wherein the operation time is 3-5min, and selectively feeding the tea leaves into S7 or S8 according to the requirement after the step;
s7, cold treatment: when the color is dark after S6, rapidly cooling through strong cooling equipment and keeping for the required time;
s8, packaging: spreading the tea again for 30-60min to restore to normal temperature, and if the water content is not 4.5-5.5%, packaging into packaging bag and sealing for storage.
Further, the method also comprises a step S2-1 between the step S2 and the step S3, wherein the enzymolysis solution is: uniformly distributing the tea leaves fed from the spreading device (1), uniformly wetting the enzymolysis liquid on the tea leaves, slightly shaking the tea leaves for many times in the process to realize secondary distribution of the liquid, and then feeding the tea leaves to the next step;
further, the step S7 can be repeated for 1-2 times, and before the tea leaves are sent, the color protection liquid is sprayed, and the tea leaves are placed in a refrigerator with the temperature of 5 ℃ for balancing for 30min until the water content of the tea leaves reaches 6-6.5%; and then S8 is sent, the water content is restored to 4.5-5.5% through S8, when the color requirement cannot be met by one-time freezing, the color protection liquid is sprayed again, the color protection liquid is placed in a freezing device with the temperature of 12-15 ℃ below zero and kept at 2h, the temperature is slowly raised to-5 ℃ in the process of 2 hours until the water content is 6-6.5%, and then S8 is sent, and the water content is restored to 4.5-5.5% through S8.
Furthermore, automatic equipment is adopted to carry out automatic operation steps, and because the time used in each step is different, if the time consumption of the spreading step is long, and the time consumed in the subsequent other steps is short, in order to improve the continuity of each step, the processing amount of the spreading equipment (1), the enzymolysis liquid moistening equipment (2), the enzyme-deactivating equipment (3), the rolling equipment (5), the strip tidying equipment (6), the baking equipment (7), the cold processing equipment (8) and the packaging equipment (9) is matched with the processing amount of the other equipment;
a rolling conveyor (4) is arranged in front of the rolling equipment (5), a conveyor feeding port (401) is formed in the top of the rolling conveyor (4), and a flexible conveying pipe (402) is arranged at the tail end of the lower end of the conveyor feeding port (401); when the rolling equipment is used for rolling movement, the flexible delivery pipe (402) is adopted, so that the filling of tea leaves is not hindered, and the continuous processing is convenient.
Furthermore, the spreading device is provided with a plurality of parallel spreading layers, each spreading layer is provided with a plurality of spreading channels, the plurality of spreading channels are spliced together to form a fan-shaped structure, and the output ends of the plurality of spreading channels are converged to a narrow position; all the layer is put on being located same vertical line in the stand, and the entry end is equipped with the vertical transport ware that the passageway is the same is put in the stand of quantity and every layer, vertical transport ware is installed on being used for prescribing a limit to the lift gag lever post that reciprocates, is equipped with the slant stopper of a slope at the lift gag lever post top, and the tealeaves of putting in the passageway in the stand of every layer all is exported at the end and falls on vertical transport ware, then vertical transport ware is by the slope after spacing fast spacing emergence slope of slant after lifting to the top, makes its inside tealeaves along the inclined plane landing in moist enzymolysis liquid equipment.
Further, the spreading channel of the spreading equipment is a spreading conveyor belt with a conveyor belt structure, the side surface of the spreading conveyor belt is fixed on the inner wall of the spreading shell, a rotating shaft used at the input end of the spreading conveyor belt is larger than a rotating shaft used at the output end of the spreading conveyor belt, so that the spreading conveyor belt forms a trapezoidal structure, and a plurality of spreading conveyor belts are spliced into a layer to form a fan-shaped structure; the belt body of the spreading conveying belt is elastic mesh cloth, two metal wires are arranged on the side face of the spreading conveying belt along the moving direction, grooves used for clamping the metal wires are formed in two rotating shafts of the input end and the output end, the mesh cloth can be gradually widened in the process of moving to the input end and gradually narrowed in the process of moving to the output end in the rotating process, and when the mesh cloth is stretched to the widest, the mesh size of the mesh cloth is smaller than the diameter of needle-shaped tea leaves, so that the tea leaves are prevented from falling.
The material feeding device is arranged at the inlet end of the spreading equipment and comprises a lifting column, a material storage box capable of moving up and down is arranged on the side face of the lifting column, a material storage box discharging port is arranged on one side, close to the spreading conveying belt, of the material storage box, two discharging shovels are arranged at the lower end of the material storage box discharging port, two sides of each discharging shovel are fixed on the material storage box and are fixedly connected through a shovel rotating shaft to realize rotation, a torsion spring is arranged in each shovel rotating shaft, and a shovel blocking block used for limiting the discharging shovels is arranged at the bottom of the material storage box;
one or two longitudinal friction limiting block mounting rods are arranged on the inner wall of the spreading and placing machine shell close to the unloading shovel, a plurality of friction limiting blocks are arranged on the surfaces of the friction limiting block mounting rods, and the distance between every two friction limiting blocks is the same as the layer height between the spreading and placing conveyor belts in the longitudinal direction; the friction limiting block is an arc-shaped block made of rubber materials, an arc-shaped structure corresponding to the friction limiting block is arranged on the side face of the unloading shovel, when the unloading shovel moves downwards to the friction limiting block, the position of the unloading shovel is suitable for feeding the spreading conveyer belt at the moment, the unloading shovel is in contact with the friction limiting block and limited, when the feeding device finishes conveying and needs to feed other spreading conveyer belts on the lower side, the feeding device continues to move downwards, the unloading shovel rotates upwards due to limitation, the torsion spring is stressed at the moment, when the torsion spring rotates to the limit of the force of the torsion spring, the friction force between the unloading shovel and the friction limiting block is not enough to block the downward movement of the unloading shovel, and the unloading shovel strides over the friction limiting block and restores to incline downwards under the action of the torsion spring until the unloading shovel is limited by the shovel blocking block; when the feeding device moves upwards, the shovel block is directly arranged, so that the friction limiting block can be directly broken after being limited; in use, each feeding is from bottom to top, and the feeding is convenient for personnel to feed the feeder.
Furthermore, the longitudinal transfer device comprises a transfer tray, a telescopic device is arranged below the transfer tray, and the telescopic device is used for realizing the up-and-down movement of the whole transfer tray;
the transport tray is under initial condition, and its height of empting the side is less than and is close to the stand and puts conveyer belt one side, and is close to the stand and puts one side of conveyer belt and be equipped with and enclose the fender, should enclose the fender and make for the flexible glue material.
Furthermore, the enzymatic hydrolysate moistening equipment comprises an enzymatic hydrolysate casing, a sprayer moving shaft is installed on the upper side inside the enzymatic hydrolysate casing, at least one sprayer is installed on the sprayer moving shaft, each sprayer can move on the sprayer moving shaft, an enzymatic hydrolysate conveying belt is arranged below the enzymatic hydrolysate casing, a spraying cavity is formed in the area between the enzymatic hydrolysate conveying belt and the sprayer, when tea leaves are conveyed to the enzymatic hydrolysate conveying belt from a longitudinal transporter, the enzymatic hydrolysate conveying belt is driven to run, tea She Pingpu is uniform and starts to spray enzymatic hydrolysate, a belt body of the enzymatic hydrolysate conveying belt is of a fence structure, a vibrating head is arranged on the inner side of the enzymatic hydrolysate conveying belt and used for vibrating the upper side of the enzymatic hydrolysate conveying belt, the tea leaves can vibrate and turn over in the process, so that the enzymatic hydrolysate can be dispersed and wetted, and the surface coverage rate of the enzymatic hydrolysate on the tea leaves is improved;
the vibration head comprises a vibration head mounting plate, two rows of small holes which are arranged at equal intervals are arranged on the vibration head mounting plate along the movement direction of the enzymatic hydrolysate conveying belt and serve as vibration head movable holes, the vibration head movable holes are divided into two sections with the upper part being large and the lower part being small, a vibration head rod body is placed in the vibration head movable holes, the vibration head rod body is divided into a vibration head rod body upper section, a vibration head limiting section and a vibration head rod body lower section from top to bottom, a vibration head connecting rod is arranged between the two adjacent vibration head rod body upper sections which are perpendicular to the movement direction of the enzymatic hydrolysate conveying belt, vibration blocks are arranged at positions close to two sides in the inner side of the enzymatic hydrolysate conveying belt, each vibration block is of an arc structure with straight line sections, and the bottom of the vibration head rod body lower section is of an arc structure; when the rod body of the vibration head is placed into the movable hole of the vibration head, the limit section of the vibration head is limited by the step, a certain gap is formed between the upper section of the rod body of the vibration head and the inner side of the vibration belt body at the upper part, the lower section of the rod body of the vibration head is attached to the inner side of the vibration belt body at the lower part, the width of the rotating shaft body is smaller than that of the vibration belt body, and the shaft body is connected and fixed on the enzymolysis liquid shell through the rotating shaft connecting rod; in the course of working, when the enzymolysis liquid conveyer belt rotated, the vibrations piece striking vibrations head rod body hypomere of the inboard vibrations area body of lower part, vibrations head was whole to be shifted up and promoted vibrations area body and shift up this moment, because the motion of the vibrations area body, can let the tealeaves on upper portion take place slightly to rock this moment, after the straightway that the vibrations piece was moved to the vibrations head and lost external force, then quick tenesmus, tealeaves can overturn and vibrations because the tenesmus of the vibrations area body this moment.
The green removing equipment is a microwave green removing device and comprises a green removing machine shell, a microwave device moving rod is arranged in the green removing machine shell, a microwave generator capable of moving along the microwave device moving rod is arranged on the microwave device moving rod, two rows of conveying belts are arranged on the lower side in the green removing shell, a green removing conveying belt rotating from an input port to an output port is arranged on the upper portion of the green removing conveying belt, a green removing returning conveying belt is arranged on the lower portion of the green removing conveying belt, a color identification device is arranged above the output end of the green removing conveying belt, two branch plates are arranged below the output end of the green removing conveying belt and are respectively a discharging branch plate I and a discharging branch plate II, the discharging branch plates I and the discharging branch plates II are fixed on the green removing machine shell through shafts, the discharging branch plates I and the discharging branch plates II are kept close to the end faces to be attached when being in butt joint, so that an integral plate can be independently rotated, the discharging branch plates I and the discharging branch plates II are respectively conveying belts, and can be rotated along the direction vertical to the green removing conveying belt, and tea leaves sent out from the green removing conveying belt are laterally to other transverse transporters;
when the first discharging distribution plate and the second discharging distribution plate both rotate downwards, tea leaves of the enzyme-deactivating conveying belt directly fall into the oblique transporters arranged below the first discharging distribution plate and the second discharging distribution plate, so that the oblique transporters can convey the tea leaves into the longitudinal transporters, and subsequent rolling equipment can be conveniently input;
when the color recognition device judges that the color of a certain section of water-removed tea does not meet the requirement and needs to prolong the water-removing time, the discharged material is upwards rotated towards the first plate, the tea leaves are made to fall onto a water-removing returning belt along the sliding direction, and the purpose of returning the tea leaves to the water-removing conveying belt is realized through a longitudinal transporter arranged in front of the water-removing equipment.
Further, a rolling conveyor is arranged in front of the rolling equipment, a conveyor feeding port is formed in the top of the rolling conveyor, and a flexible conveying pipe is arranged at the tail end of the lower end of the conveyor feeding port; when the rolling equipment is used for rolling, the adopted flexible conveying pipe does not obstruct the filling of tea leaves, and the continuous processing is convenient.
The invention has the advantages that:
the method provided by the invention can adopt enzymolysis liquid in the early stage by improving the process, ensure the color of the tea leaves as much as possible in the enzyme deactivating process, promote the reaction of the tea leaves and release the fragrance, reduce the difficulty in subsequent processing, meet the requirement of continuous processing by improving and adjusting the adaptability of equipment, and is particularly suitable for the tea leaves with relatively small size, such as the needle tea.
Drawings
FIG. 1 is a process flow diagram of the present invention;
FIG. 2 is a flow chart of the structure of the present invention;
FIG. 3 is a schematic view of the internal structure of the spreading apparatus;
FIG. 4 is a schematic view of the longitudinal transporter of FIG. 3 in a changed state;
FIG. 5 is a front view of the feed bin;
FIG. 6 is a view of the variation of FIG. 5;
FIG. 7 is a right side view of FIG. 5;
FIG. 8 is a schematic view of the internal structure of an enzymatic hydrolysate moistening device;
FIG. 9 isbase:Sub>A cross-sectional view taken along the line A-A in FIG. 8;
FIG. 10 is a schematic view of the variation of FIG. 9;
FIG. 11 is an enlarged view of area B of FIG. 9;
FIG. 12 is a schematic view of the internal structure of the water-removing apparatus;
FIG. 13 is an enlarged view of the right side of FIG. 12;
FIG. 14 is a schematic view of the changed state of FIG. 13;
FIG. 15 is a schematic diagram showing the positional relationship of the oblique transfer device, the lateral transfer device, the discharging diversion plate, etc. in the right side view of FIG. 12;
fig. 16 is a schematic view showing the connection of the kneading conveyor and the kneading apparatus.
In the figure: 1 spreading equipment, 2 enzyme moistening equipment, 3 enzyme deactivating equipment, 4 rolling conveyors, 5 rolling equipment, 6 strip tidying equipment, 7 baking equipment, 8 cold treatment equipment, 9 bagging equipment, 10 transverse conveyors, 11 longitudinal conveyors, 12 oblique conveyors, 13 fans, 101 spreading machine shells, 102 spreading conveyor belts, 103 spreading scraper blade supports, 1031 spreading scraper blades, 104 ceilings, 105 friction limiting block mounting rods, 1051 friction limiting blocks, 106 feeders, 201 enzyme hydrolyzing machine shells, 202 vibrating shaft moving shafts, sprayers, 204 enzyme hydrolyzing conveyor belts, 2041 vibrating belt bodies, 20411 vibrating blocks, 2042 rotating shaft connecting rods, 2043 rotating shaft bodies, 205 vibrating heads, 2051 vibrating head mounting plates, 20511 vibrating head moving holes, 2052 vibrating head rod bodies, 20521 vibrating head rod body upper sections, 20522 vibrating head limiting sections, vibrating head rod body lower sections, 20523 vibrating head rod body sections, 2053 vibrating head connecting rods, 301 rotating shaft rotating shafts, 302 microwave moving rods, 20513 vibrating head conveying belts, 306, 304 vibrating brush horizontal brush conveyor belts, 306, 10663 horizontal brush return conveyor belts, 1063 oblique pan recognition device, 1064 lifting and baffle plate conveying devices for a 1062, 1063 lifting baffle plate, 1062 lifting baffle plate, 1063 and 1062.
Detailed Description
In the following description of the present invention, it should be noted that terms such as "upper" and "lower" are used herein only for convenience of description of the drawings, and are not intended to limit the direction in actual use, and do not necessarily require or imply any actual relationship or order between such entities or operations. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus; the driving mechanisms of partial hydraulic, electric and wind power, etc. in the invention, which do not explain the concrete connection or movement mode, belong to the conventional prior art scheme.
As shown in fig. 1-2, a processing method for improving the color quality of needle tea comprises the following steps:
s1: selecting raw materials: selecting the raw material varieties of Nanjiang No. 1, zao Baijian No. 5 or Fuding Dabai tea; the raw material picking requirement is that the raw material is picked from a pollution-free ecological tea garden with the altitude of 500-1000m, preferably within the altitude range of 550-650 m; the picking time is the best in sunny days in the middle ten days of March of the sunny calendar, the air temperature is 5-20 ℃, and the weather is fine; picking fresh leaves with standard of one bud and one leaf, wherein the length of the bud and the leaf is 0.8-2.5cm; the bud leaves are complete and uniform, and purple leaves, fish leaves and insect pests do not exist;
s2, spreading: spreading freshly picked needle-type tea leaves for 4.5h, wherein the spreading thickness is preferably 3-5cm, the ambient temperature is kept at 15-25 ℃, and the spreading equipment 1 adopts grid cloth as a plane for bearing the tea leaves; the plane is of an inclinable structure, and when the moisture content is 55-60%, the tea leaves are gathered and sent to the next step;
s2-1, moistening enzymolysis liquid: uniformly distributing the tea leaves fed from the spreading equipment 1, uniformly wetting the enzymolysis liquid on the tea leaves, slightly shaking the tea leaves for many times in the process to realize secondary distribution of the liquid, and then feeding the tea leaves to the next step;
the step is a preferable step, and in some cases, the step can be omitted and directly enters S3;
s3, fixation: carrying out microwave enzyme deactivation on the fed tea leaves, wherein the microwave enzyme deactivation time is 30s, the tea leaves are required to be turned over integrally in the process, and finally the water content is 45-50%; the green removing equipment is provided with a returning mechanism and a detecting device, and when the color of the tea leaves is found not to meet the requirements, the tea leaves are returned to the green removing inlet for operation again;
in some cases, in order to increase the effect after enzyme deactivation, the mixture can be independently spread for cooling for 30min, and the step can be realized by additionally arranging the spreading device 1 used in the step S1 after the enzyme deactivation device 3;
s4, rolling: rolling the fed tea leaves by using rolling equipment 5, and feeding the tea leaves to the next step when the water content is 20-30%;
if the color is not bright enough in S3, abandoning S4 and directly sending to the step S5;
s5, arranging strips: in the step, a reciprocating mechanism is adopted to tidy the needle-shaped tea, the operation time is 1-2min, and when the water content is 15-18%, the next step is carried out;
s6, baking: drying and baking with hot air to reduce the water content of the tea leaves to 4.5-5.5%, wherein the operation time is 3-5min, and selectively feeding the tea leaves into S7 or S8 according to the requirement after the step;
s7, cold treatment: when the color is dark after S6, rapidly cooling through strong cooling equipment and keeping for the required time; the step S7 can be repeated for 1-2 times, and before feeding, the color protection liquid is sprayed, and the tea leaves are placed in a refrigerator with the temperature of 5 ℃ for balancing for 30min until the water content of the tea leaves reaches 6-6.5%; and then S8 is sent, the water content is restored to 4.5-5.5% through S8, when the color requirement cannot be met by one-time freezing, the color protection liquid is sprayed again, the color protection liquid is placed in a freezing device with the temperature of 12-15 ℃ below zero and kept at 2h, the temperature is slowly raised to-5 ℃ in the process of 2 hours until the water content is 6-6.5%, and then S8 is sent, and the water content is restored to 4.5-5.5% through S8.
S8, packaging: spreading the tea again for 30-60min to restore to normal temperature, and if the water content is not 4.5-5.5%, packaging into packaging bag and sealing for storage.
Particularly, automatic equipment is adopted to carry out automatic operation steps, the spreading and placing steps are long in time consumption due to different time used in each step, and other subsequent steps are short in time, so that the processing amount of the spreading and placing equipment 1, the enzyme moistening and hydrolyzing equipment 2, the enzyme deactivating equipment 3, the rolling and twisting equipment 5, the strip tidying equipment 6, the baking equipment 7, the cold processing equipment 8 and the bagging equipment 9 is matched with other equipment for improving the continuity of each step, and the spreading and placing time is long, so that the spreading and placing equipment 1 needs to be specially designed, the spreading and placing area is increased, multi-region spreading can be met, and the spread tea leaves can be sent to the next step for processing.
As shown in fig. 3-7, the spreading device 1 is provided with a plurality of parallel spreading layers, each spreading layer is provided with a plurality of spreading channels, the plurality of spreading channels are spliced together to form a fan-shaped structure, and the output end of the spreading channel converges to a narrow position; all the layers of putting on the same perpendicular line, the entry end is equipped with the same vertical transport ware 11 of passageway is put with the exhibition of each layer in quantity, vertical transport ware 11 is installed on the lift gag lever post 1101 that is used for injecing and reciprocates, is equipped with the slant stopper 1104 of an slope at lift gag lever post 1101 top, and the tealeaves of putting in the passageway all is exported at the end and falls on vertical transport ware 11 at the institute, then vertical transport ware 11 is after lifting to the top by the spacing fast 1104 spacing emergence slope of slant, makes its inside tealeaves slide along the inclined plane and falls in moist enzymolysis liquid equipment 2. The spreading channel of the spreading device 1 is a spreading conveyor belt 102 with a conveyor belt structure, the side surface of the spreading conveyor belt 102 is fixed on the inner wall of a spreading machine shell 101, a rotating shaft used at the input end of the spreading conveyor belt 102 is larger than a rotating shaft used at the output end, so that a trapezoidal structure is formed, and a plurality of spreading conveyor belts 102 are spliced into a layer to form a fan-shaped structure; the spreading conveying belt 102 is made of elastic mesh cloth, two metal wires are arranged on the side face of the spreading conveying belt in the moving direction, grooves for clamping the metal wires are formed in two rotating shafts of the input end and the output end, the mesh cloth can be gradually widened in the process of moving to the input end and gradually narrowed in the process of moving to the output end in the rotating process, and when the mesh cloth is stretched to the widest, the mesh size of the mesh cloth is smaller than the diameter of needle-shaped tea leaves, so that the needle-shaped tea leaves are prevented from vertically falling from holes, and the thickness of the laid tea leaves can be controlled by controlling the rotating speed. As shown in fig. 5-7, a material feeder 106 is further provided, the material feeder 106 is disposed at an inlet end of the spreading device 1, the material feeder 106 includes a lifting column, a material storage box 1061 capable of moving up and down is disposed on a side surface of the lifting column, a material storage box discharge port 10611 is disposed on one side of the material storage box 1061 close to the spreading conveyor 102, two discharging shovels 1062 are disposed at lower ends of the material storage box discharge port 10611, two sides of each discharging shovel 1062 are fixed on the material storage box 1061 and are fixedly connected and rotated by a shovel rotating shaft 1064, a torsion spring is disposed in the shovel rotating shaft 1064, and a shovel stopper 1063 for limiting the discharging shovel 1062 is disposed at a bottom of the material storage box 1061; one or two longitudinal friction limiting block mounting rods 105 are arranged on the inner wall of the spreading machine shell 101 close to the unloading shovel 1062, a plurality of friction limiting blocks 1051 are arranged on the surfaces of the friction limiting block mounting rods 105, and the distance between every two friction limiting blocks 1051 is the same as the layer height between the longitudinal directions of the spreading conveyor belt; the friction limiting block 1051 is an arc-shaped block made of rubber materials, an arc-shaped structure corresponding to the friction limiting block 1051 is arranged on the side face of the discharge shovel 1062, when the discharge shovel 1062 moves downwards to the friction limiting block 1051, the position of the discharge shovel 1062 is just suitable for feeding the spreading and placing conveyor belt 102, the discharge shovel contacts with the friction limiting block 1051 and is limited, when the feeding device 106 finishes conveying and other spreading and placing conveyor belts 102 on the lower side are required to feed, the feeding device 106 continues to move downwards, the discharge shovel 1062 rotates upwards due to limiting, at the moment, the torsion spring is stressed, when the torsion spring is rotated to the limit of the force, the friction force between the discharge shovel 1062 and the friction limiting block 1051 is insufficient to block the downward movement of the discharge shovel 1062, and at the moment, the discharge shovel 1062 crosses over the friction limiting block 1051 and is restored to tilt downwards under the action of the torsion spring until being limited by the blocking shovel block 1053; when the feeder 106 moves upwards, the shovel block 1063 is directly arranged, so that the friction limiting block 1051 can be directly broken after being limited; in use, each feeding is from bottom to top, and the feeding device 106 is convenient for personnel to feed materials.
In some embodiments, a spreading scraper support 103 and a spreading scraper 1031 may be further disposed above the spreading conveyor 102 of each layer for spreading out the tea leaves fed to the spreading conveyor 102 to ensure that the thickness of the spread tea leaves is 3-5cm optimal for avoiding errors in the calculation of the spreading time.
As shown in fig. 3-4, the longitudinal transfer device 11 includes a transfer tray 1102, and a telescopic device 1103 is disposed below the transfer tray 1102, and the telescopic device 1103 is used to move the entire transfer tray 1102 up and down; expansion bend 1103 can be the flexible pipe of inflatable ripple, lets the flexible pipe of ripple rise and drive the motion of transportation tray 1102 after aerifing the inside, transportation tray 1102 is under initial condition, and its height of empting the side is less than and is close to the stand and puts conveyer belt 102 one side, and is close to the stand and puts one side of conveyer belt 102 and be equipped with and enclose the fender, should enclose the fender and make for the flexible glue material, and the position that encloses the fender is ensured at the terminal inboard of putting conveyer belt 102 at the stand with technical skill like this to avoid tealeaves to drop, can ensure when the rebound again, enclose the fender can not cause the damage and can not move the condition such as target in place because hit the stand and put conveyer belt 102, can easily let whole transportation tray 1102 put conveyer belt 102 through the stand through deformation when touchhing.
It should be noted that, the quantity of vertical translator 11 can be a plurality of, can all set up vertical translator between a plurality of equipment moreover, and prior art all generally adopts the area body that the slant was carried when solving vertical transportation, and its occupation space is great, and the cost is higher, adopts vertical translator 11 can solve this problem with less space, and makes things convenient for a large amount of filling materials once only.
As shown in fig. 8-11, the enzymatic hydrolysate moistening device 2 can be improved on the basis of LPG-1000, and includes an enzymatic hydrolysate casing 201, and the preferred formula of the enzymatic hydrolysate is: the composition is prepared by mixing the following raw materials in parts by weight: 0.5-1% of tannase, 0.1-0.3% of lipase and 0.4-0.6% of cellulase. 1-1.2% of citric acid and the balance of water. Of course, other formulations may be employed where desired. A sprayer moving shaft 202 is arranged on the upper side in the enzymatic hydrolysate casing 201, at least one sprayer 203 is arranged on the sprayer moving shaft 202, each sprayer 203 can move on the sprayer moving shaft 202, an enzymatic hydrolysate conveying belt 204 is arranged below the enzymatic hydrolysate casing 201, a spraying cavity is arranged in the area between the enzymatic hydrolysate conveying belt 204 and the sprayer 203, when tea leaves are conveyed to the enzymatic hydrolysate conveying belt 204 from the longitudinal transporter 11, the enzymatic hydrolysate conveying belt 204 is driven to run, tea She Pingpu is uniform and starts to spray enzymatic hydrolysate, the belt body of the enzymatic hydrolysate conveying belt 204 is of a fence structure, namely a structure similar to a crawler belt is formed by combining relatively hard strips or sheets, a vibration head 205 is arranged on the inner side of the enzymatic hydrolysate conveying belt 204 and used for vibrating the upper side of the enzymatic hydrolysate conveying belt 204, so that the tea leaves can vibrate and turn in the process, the enzymatic hydrolysate can be dispersed and wetted, and the surface coverage rate of the enzymatic hydrolysate on the tea leaves is improved; the vibration head 205 comprises a vibration head mounting plate 2051, two rows of small holes which are arranged at equal intervals are arranged on the vibration head mounting plate 2051 along the movement direction of the enzymatic hydrolysate conveying belt 204 and serve as a vibration head movable hole 20511, the vibration head movable hole 20511 is divided into two sections which are large at the top and small at the bottom, a vibration head rod body 2052 is placed in the vibration head movable hole 20511, the vibration head rod body 2052 is divided into a vibration head rod body upper section 20521, a vibration head limiting section 20522 and a vibration head rod body lower section 20523 from top to bottom, a vibration head connecting rod 2053 is arranged between two adjacent vibration head rod body upper sections 20521 which are perpendicular to the movement direction of the enzymatic hydrolysate conveying belt 204, vibration blocks 20411 are arranged at positions close to two sides of the inner side of the enzymatic hydrolysate conveying belt 204, the vibration blocks 20411 are of arc-shaped structures with straight line segments, and the bottoms of the vibration head rod body lower sections 20523 are of arc-shaped structures; after the vibrating head rod body 2052 is placed into the vibrating head moving hole 20511, the vibrating head limiting section 20522 is limited by a step, a certain gap is formed between the upper section 20521 of the vibrating head rod body and the inner side of the vibrating belt body 2041 at the upper part, the lower section 20523 of the vibrating head rod body is attached to the inner side of the vibrating belt body 2041 at the lower part, the width of the rotating shaft body 2043 is smaller than that of the vibrating belt body 2041, so that two sides of the vibrating belt body 2041 are suspended, but because the vibrating belt body 2041 is of a hard fence structure, two sides cannot sag, and the shaft body 2043 is fixedly connected to the enzymolysis liquid shell 201 through the rotating shaft connecting rod 2042; in the processing process, when the enzymolysis liquid conveying belt 204 rotates, the vibrating block 20411 inside the vibrating belt 2041 on the lower portion impacts the lower vibrating head rod segment 20523, at this time, the vibrating head 205 moves up integrally and pushes the vibrating belt 2041 to move up, at this time, the tea leaves on the upper portion slightly shake due to the movement of the vibrating belt 2041, and when the vibrating head 205 moves to the straight line segment of the vibrating block 20411 and loses external force, the tea leaves quickly fall down, and at this time, the tea leaves turn over and vibrate due to the falling of the vibrating belt 2041.
As shown in fig. 12-15, the de-enzyming apparatus is a microwave de-enzyming device, and any prior art de-enzyming apparatus such as a QX-20HM3 type de-enzyming machine includes a de-enzyming housing 301, a microwave moving rod 302 is arranged in the de-enzyming housing 301, a microwave generator 303 capable of moving along the microwave moving rod 302 is arranged on the microwave moving rod 302, two rows of conveyor belts are arranged at the lower side of the interior of the de-enzyming housing 301, a de-enzyming conveyor belt 305 rotating from an input port to an output port is arranged at the upper part, a de-enzyming return belt 306 is arranged at the lower part, and a Color recognition device 307 such as a Color detector Color Pix is arranged above the output end of the de-enzyming conveyor belt 305; two branch plates are arranged below the output end of the green removing conveying belt 305, namely a first discharging branch plate 308 and a second discharging branch plate 309 respectively, the first discharging branch plate 308 and the second discharging branch plate 309 are fixed on the green removing machine shell 301 through shafts, the end faces of the first discharging branch plate 308 and the second discharging branch plate 309 are kept close to and attached to each other when the first discharging branch plate 308 and the second discharging branch plate 309 are in butt joint, a whole plate is formed and can also rotate independently, the first discharging branch plate 308 and the second discharging branch plate 309 are respectively provided with conveying belts which can rotate along the direction vertical to the green removing conveying belt 305, and tea leaves sent out from the green removing conveying belt 305 are laterally conveyed to other transverse transporters 10;
when the first discharging diversion plate 308 and the second discharging diversion plate 309 rotate downwards, tea leaves on the de-enzyming conveying belt 305 directly fall into the inclined transporters 12 arranged below the first discharging diversion plate 308 and the second discharging diversion plate 309, so that the inclined transporters 12 can convey the tea leaves into the longitudinal transporters 11, and the subsequent rolling equipment 5 can be conveniently input;
when the color recognition device 307 judges that the color of a certain section of water-removed tea leaves does not meet the requirement and needs to prolong the water-removing time, the discharged material is upwards rotated towards the first plate 308, so that the tea leaves slide onto the water-removing conveyer belt 306, and the tea leaves are conveyed back to the water-removing conveyer belt 305 through the longitudinal transporter 11 arranged in front of the water-removing equipment 3.
The above returning mode is mainly used when part of tea leaves need to be returned, when the whole color does not reach the standard, the green removing conveyer belt 305 is directly rotated by itself and returned to the position where the microblog generator 303 processes, and the time set in the step S3 can be independently adjusted according to the requirement of the tea leaves so that the tea leaves can be processed again at the shortest processing time, so that the tea leaves can be processed again when the tea leaves are insufficient, but the tea leaves cannot be excessive.
As shown in fig. 16, the rolling device 5 is a rolling machine commonly used in the prior art, such as a tea rolling machine of the thirty-nine 6CR series, and is provided with a rolling conveyor 4 at the front, a conveyor feeding port 401 is provided at the top of the rolling conveyor 4, and a flexible conveying pipe 402 is provided at the lower end of the conveyor feeding port 401; when the rolling device 5 executes rolling movement, the upper barrel body can be integrally wound along the clockwise direction or the anticlockwise direction, the adopted flexible conveying pipe 402 cannot cause incapability of feeding materials due to winding, so that tea filling is not hindered, continuous processing is facilitated, at the moment, only the stopping at any position and the lifting of the pressing plate in the rolling device 5 are needed, and the operation can be implemented again after filling is finished.
The baking apparatus 7 may be a prior art tea dryer such as the kewei65 model, with a mechanism behind the baking apparatus similar to the first 308 and second 309 discharge diverter plates to ensure that when direct access to the bagging apparatus is required, the tea is opened directly to drop onto the transverse conveyor 10 for input to the bagging apparatus 9, or to the cold treatment apparatus 8 by diverting the plate sideways through a plurality or one L-shaped transverse conveyor 10,
the cold treatment device 8 is any existing freezing line conveyor, such as RG-201 type, and a shell is additionally arranged outside the cold treatment device, an opening and closing door is arranged at an inlet and an outlet, and the external transverse conveyor belt 10 can be temporarily used as a storage place under the condition of not being full to wait for the next cooling processing.
The bagging device 9 can be a KST-160D-06 tea packaging machine in the prior art, and a tea frying machine can be additionally arranged under the condition of requirement to ensure that the tea before being packaged meets the requirements of moisture content and the like.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. A processing method for improving the color quality of needle tea is characterized by comprising the following steps:
s1: selecting raw materials: the raw material picking requirement is that the raw material is picked from a pollution-free ecological tea garden with the altitude of 500-1000 m; picking time is three months in the lunar calendar, the temperature is 5-20 ℃, and the weather is fine; picking fresh leaves with standard of one bud and one leaf, wherein the length of the bud and the leaf is 0.8-2.5cm; the bud leaves are complete and uniform, and purple leaves, fish leaves and insect pests do not exist;
s2, spreading: spreading freshly picked needle-shaped tea leaves for 4.5h, keeping the ambient temperature at 15-25 ℃, and adopting mesh cloth as a plane for bearing the tea leaves by spreading equipment (1); the plane is of an inclinable structure, and when the moisture content is 55-60%, the tea leaves are gathered and sent to the next step;
s3, fixation: carrying out microwave enzyme deactivation on the fed tea leaves, wherein the microwave enzyme deactivation time is 30s, the tea leaves are required to be turned over integrally in the process, and finally the water content is 45-50%; the green removing equipment is provided with a returning mechanism and a detecting device, and when the color of the tea leaves is found not to meet the requirements, the tea leaves are returned to the green removing inlet for operation again;
s4, rolling: rolling the fed tea leaves by using rolling equipment, and feeding the tea leaves to the next step when the water content is 20-30%;
if the color is not bright enough in S3, abandoning S4 and directly sending to the step S5;
s5, arranging strips: in the step, a reciprocating mechanism is adopted to tidy the needle-shaped tea, the operation time is 1-2min, and when the water content is 15-18%, the next step is carried out;
s6, baking: drying and baking with hot air to reduce the water content of the tea leaves to 4.5-5.5%, wherein the operation time is 3-5min, and selectively feeding the tea leaves into S7 or S8 according to the requirement after the step;
s7, cold treatment: when the color is dim after S6, rapidly cooling the color through forced cooling equipment, and keeping the color for a required time;
s8, packaging: spreading the tea again for 30-60min to restore to normal temperature, and if the water content is not 4.5-5.5%, packaging into packaging bag and sealing for storage.
2. The processing method for improving the color quality of needle tea as claimed in claim 1, further comprising a step S2-1 between the steps S2 and S3, wherein the step of moistening the enzymolysis solution comprises: the tea leaves fed from the spreading device (1) are uniformly distributed, the enzymolysis liquid is uniformly wetted on the tea leaves, the tea leaves are slightly shaken for a plurality of times in the process, the secondary distribution of the liquid can be realized, and then the tea leaves are fed to the next step.
3. The processing method for improving the color quality of needle tea as claimed in claim 2, wherein the step S7 can be repeated 1-2 times, and before feeding, the color protection liquid is sprayed, and the tea is placed in a refrigerator at 5 ℃ for 30min to be balanced until the water content of the tea is 6-6.5%; and then sending to S8, recovering the water content to 4.5-5.5% through S8, when the color requirement cannot be met by one-time freezing, spraying the color protection liquid again, placing the color protection liquid in a freezing device with the temperature of 12-15 ℃ below zero, keeping the temperature of 2h, slowly raising the temperature to-5 ℃ in the process of 2 hours until the water content is 6-6.5%, and then sending to S8, and recovering the water content to 4.5-5.5% through S8.
4. The processing method for improving the color quality of the needle tea according to claim 3, wherein the steps are all automated by using automated equipment, and because the time used in each step is different, if the time consumed in the spreading step is long, and the time consumed in the other subsequent steps is relatively short, in order to improve the continuity of each step, the required processing amount of the spreading equipment (1), the enzymatic hydrolysate moistening equipment (2), the enzyme deactivating equipment (3), the rolling equipment (5), the strip tidying equipment (6), the baking equipment (7), the cold processing equipment (8) and the bagging equipment (9) is matched with the processing amount of the other equipment;
a rolling conveyor (4) is arranged in front of the rolling equipment (5), a conveyor feeding port (401) is formed in the top of the rolling conveyor (4), and a flexible conveying pipe (402) is arranged at the tail end of the lower end of the conveyor feeding port (401); when the rolling equipment is used for rolling movement, the flexible delivery pipe (402) is adopted, so that the filling of tea leaves is not hindered, and the continuous processing is convenient.
5. The processing method for improving the color and luster quality of the needle-shaped tea as claimed in claim 4, wherein the spreading device (1) is provided with a plurality of parallel spreading layers, each spreading layer is provided with a plurality of spreading channels, the plurality of spreading channels are spliced together to form a fan-shaped structure, and the output ends of the plurality of spreading channels converge to a narrower position; all the layers of putting on the same perpendicular line, the entry end is equipped with the vertical transport ware (11) that the passageway is the same is put on the share of quantity and each layer, vertical transport ware (11) are installed and are used for injecing lift gag lever post (1101) that reciprocates, are equipped with the slant stopper (1104) of an slope at lift gag lever post (1101) top, and the tealeaves of putting in the passageway on the share of each layer all exports at the end and falls on vertical transport ware (11), then vertical transport ware (11) take place the slope after being spacing fast (1104) of slant after lifting to the top, make its inside tealeaves slide along the inclined plane in moist enzymolysis liquid equipment (2).
6. The processing method for improving the color and luster quality of the needle-shaped tea according to claim 5, wherein the spreading channel of the spreading device (1) is a spreading conveyor belt (102) with a conveyor belt structure, the side surface of the spreading conveyor belt (102) is fixed on the inner wall of a spreading machine shell (101), the rotating shaft used at the input end of the spreading conveyor belt (102) is larger than the rotating shaft used at the output end, so that a trapezoidal structure is formed, and a plurality of spreading conveyor belts (102) are spliced into a layer to form a fan-shaped structure; the spreading conveying belt (102) is made of elastic mesh cloth, two metal wires are arranged on the side face of the spreading conveying belt along the moving direction, grooves used for clamping the metal wires are formed in two rotating shafts of the input end and the output end, the mesh cloth can be gradually widened in the process of moving to the input end and gradually narrowed in the process of moving to the output end in the rotating process, and when the mesh cloth is stretched to the widest, the mesh size of the mesh cloth is smaller than the diameter of needle-shaped tea leaves, so that the tea leaves are prevented from falling.
7. The processing method for improving the color and luster quality of the needle-type camellia is characterized in that a material feeder (106) is further arranged, the material feeder (106) is arranged at the inlet end of the spreading device (1), the material feeder (106) comprises a lifting column, a material storage box (1061) capable of moving up and down is arranged on the side surface of the lifting column, a material storage box outlet (10611) is arranged on one side of the material storage box (1061) close to the spreading conveyor belt (102), unloading shovels (1062) are arranged at the lower ends of the material storage box outlet (10611), two sides of each unloading shovel (1062) are fixed on the material storage box (1061) and are fixedly connected and rotate through a shovel rotating shaft (1064), a torsion spring is arranged in each shovel rotating shaft (1064), and a shovel block (1063) for limiting the unloading shovels (1062) is arranged at the bottom of the material storage box (1061);
one or two longitudinal friction limiting block mounting rods (105) are arranged on the inner wall of the spreading machine shell (101) close to the unloading shovel (1062), a plurality of friction limiting blocks (1051) are arranged on the surfaces of the friction limiting block mounting rods (105), and the distance between every two friction limiting blocks (1051) is the same as the layer height between the longitudinal directions of the spreading conveyor belt; the friction limiting block (1051) is an arc-shaped block made of rubber materials, an arc structure corresponding to the friction limiting block (1051) is arranged on the side face of the unloading shovel (1062), when the unloading shovel (1062) moves downwards to the friction limiting block (1051), the position of the unloading shovel (1062) is suitable for feeding the spreading conveyor belt (102), the spreading conveyor belt is contacted with the friction limiting block (1051) and is limited, when the feeding device (106) finishes conveying, and other spreading conveyor belts (102) on the lower side need to feed, the feeding device (106) continues to move downwards, the unloading shovel (1062) rotates upwards due to limiting, the torsion spring is stressed, when the torsion spring is rotated to the limit, the friction force between the unloading shovel (1062) and the friction limiting block (1051) is not enough to block the downward movement of the unloading shovel (1062), and the unloading shovel (1062) crosses the friction limiting block (1051) and returns to tilt downwards under the action of the torsion spring until the limiting block (1063); when the material feeder (106) moves upwards, the material stopper (1063) is directly arranged, so that the material feeder can be directly limited and then break the friction limiting block (1051); in use, each feeding is performed from bottom to top in sequence, and the feeding of the material feeder (106) is facilitated for personnel.
8. The processing method for improving the color quality of needle-shaped tea according to claim 5, wherein the longitudinal transporter (11) comprises a transporting tray (1102), a telescopic device (1103) is arranged below the transporting tray (1102), and the telescopic device (1103) is used for realizing the up-and-down movement of the whole transporting tray (1102);
the transfer tray (1102) is in an initial state, the height of the dumping side of the transfer tray is smaller than that of one side of the spreading conveying belt (102), a surrounding baffle is arranged on one side of the spreading conveying belt (102), and the surrounding baffle is made of a soft rubber material.
9. The processing method for improving the color quality of needle tea as claimed in claim 5, wherein the moistening device (2) comprises an enzymatic housing (201), a sprayer moving shaft (202) is installed at the upper side inside the enzymatic housing (201), at least one sprayer (203) is installed on the sprayer moving shaft (202), each sprayer (203) can move on the sprayer moving shaft (202), an enzymatic conveyer belt (204) is installed below the enzymatic housing (201), the area between the enzymatic conveyer belt (204) and the sprayer (203) is a spraying cavity, when tea leaves are sent onto the enzymatic conveyer belt (204) from the longitudinal transporter (11), the enzymatic conveyer belt (204) is driven to run, tea She Pingpu is uniform, spraying of the enzymatic is started, the belt body of the enzymatic conveyer belt (204) is in a fence structure, a vibrating head (205) is arranged at the inner side of the enzymatic conveyer belt (204) and is used for vibrating the upper side of the enzymatic conveyer belt (204) to enable the tea leaves to vibrate and moisten the tea leaves in the process, so as to facilitate dispersion and wetting and improving the surface coverage rate of the enzymatic conveyer belt (204);
the vibration head (205) comprises a vibration head mounting plate (2051), two rows of small holes which are arranged at equal intervals are formed in the vibration head mounting plate (2051) along the movement direction of the enzymatic hydrolysate conveying belt (204) and serve as vibration head movable holes (20511), the vibration head movable holes (20511) are divided into two sections which are large at the top and small at the bottom, a vibration head rod body (2052) is placed in each vibration head movable hole (20511), the vibration head rod body (2052) is divided into a vibration head rod body upper section (20521), a vibration head limiting section (20522) and a vibration head rod body lower section (20523) from top to bottom, a vibration head connecting rod (2053) is arranged between the two adjacent vibration head rod body upper sections (20521) which are perpendicular to the movement direction of the enzymatic hydrolysate conveying belt (204), vibration blocks (20411) are arranged at positions, close to two sides, of the inner side of the enzymatic hydrolysate conveying belt (204), each vibration block (20411) is of an arc-shaped structure with straight line segments, and the bottom of each vibration head rod body (20523) is of an arc-shaped structure; after the vibrating head rod body (2052) is placed into the vibrating head movable hole (20511), the vibrating head limiting section (20522) is limited by the step, a certain gap is formed between the upper section (20521) of the vibrating head rod body and the inner side of the vibrating belt body (2041) at the upper part, the lower section (20523) of the vibrating head rod body is attached to the inner side of the vibrating belt body (2041) at the lower part, the width of the rotating shaft body (2043) is smaller than that of the vibrating belt body (2041), and the shaft body (2043) is fixedly connected with the enzymatic hydrolysate casing (201) through the rotating shaft connecting rod (2042); in the processing process, when the enzymolysis liquid conveying belt (204) rotates, the vibration block (20411) on the inner side of the vibration belt body (2041) on the lower portion impacts the lower section (20523) of the vibration head rod body, at the moment, the vibration head (205) integrally moves upwards and pushes the vibration belt body (2041) to move upwards, at the moment, tea leaves on the upper portion slightly shake due to the movement of the vibration belt body (2041), and when the vibration head (205) moves to the straight line section of the vibration block (20411) and loses external force, the tea leaves quickly fall down, and at the moment, the tea leaves overturn and vibrate due to the falling of the vibration belt body (2041).
10. The processing method for improving the color quality of needle-type tea according to claim 4, wherein the de-enzyming equipment is a microwave de-enzyming device comprising a de-enzyming shell (301), a microwave moving rod (302) is arranged in the de-enzyming shell (301), a microwave generator (303) capable of moving along the microwave moving rod (302) is arranged on the microwave moving rod (302), two rows of conveyor belts are arranged at the lower side of the inner input port of the de-enzyming shell (301), a de-enzyming conveyor belt (305) rotating from the upper part to the output port is arranged at the upper part, a de-enzyming conveyor belt (306) is arranged at the lower part, a color recognition device (307) is arranged above the output end of the de-enzyming conveyor belt (305), two branch plates are arranged below the output end of the green removing conveying belt (305), namely a first discharge branch plate (308) and a second discharge branch plate (309), the first discharge branch plate (308) and the second discharge branch plate (309) are fixed on the green removing machine shell (301) through shafts, the end faces of the first discharge branch plate (308) and the second discharge branch plate (309) are kept close to and attached to each other when the first discharge branch plate and the second discharge branch plate are in butt joint to form a whole plate, the whole plate can also be rotated independently, the first discharge branch plate (308) and the second discharge branch plate (309) are respectively conveying belts, the conveying belts can be rotated along the direction vertical to the green removing conveying belt (305), and tea leaves sent out from the green removing conveying belt (305) are laterally conveyed to other transverse transporters (10);
when the first discharging branch plate (308) and the second discharging branch plate (309) rotate downwards, tea leaves on the enzyme-deactivating conveying belt (305) directly fall into the inclined transporter (12) arranged below the first discharging branch plate (308) and the second discharging branch plate (309), so that the inclined transporter (12) can convey the tea leaves into the longitudinal transporter (11), and subsequent rolling equipment (5) can be conveniently input;
when the color recognition device (307) judges that the color of a certain section of water-removed tea leaves does not meet the requirement and needs to prolong the water-removing time, the discharged material is upwards rotated towards the first plate (308), so that the tea leaves slide onto the water-removing conveyer belt (306), and the tea leaves are conveyed back to the water-removing conveyer belt (305) through the longitudinal transporter (11) arranged in front of the water-removing equipment (3).
CN202211441224.7A 2022-11-17 2022-11-17 Processing method for improving color and luster quality of needle-type tea Withdrawn CN115886087A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211441224.7A CN115886087A (en) 2022-11-17 2022-11-17 Processing method for improving color and luster quality of needle-type tea

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211441224.7A CN115886087A (en) 2022-11-17 2022-11-17 Processing method for improving color and luster quality of needle-type tea

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CN115886087A true CN115886087A (en) 2023-04-04

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Application publication date: 20230404