CN111587936A

CN111587936A - Steamed green tea production equipment and production method

Info

Publication number: CN111587936A
Application number: CN202010594056.XA
Authority: CN
Inventors: 袁少华; 袁智洋; 潘丽英; 陈小红; 章飞华
Original assignee: Hangzhou Lin'an Oriental Tea Application Technology Research Institute
Current assignee: Hangzhou Zhiqinghe Tea Industry Technology Co ltd
Priority date: 2020-01-15
Filing date: 2020-06-28
Publication date: 2020-08-28
Also published as: CN111567639A; CN212937695U

Abstract

The invention discloses a steamed green tea production device, which comprises: the tea leaf fixation device is provided with a steam heating assembly and is used for heating and fixation of tea leaves; the first dehydration device is used for heating and dehydrating the tea leaves after the fixation; the leaf beating device is used for drying and conveying the tea leaves; the at least one second dehydration device is provided with a second heating component and a second conveying component and is used for heating, dehydrating and conveying the tea leaves; at least one first drying device for drying the dehydrated tea; the cooling device is used for cooling the dried tea leaves at normal temperature; and the at least one second drying device is used for drying the cooled tea leaves. Also discloses a method for producing the steamed green tea, which comprises the following steps: steaming, primary dehydration, threshing, at least one-time heating dehydration and at least one-time drying treatment. The production equipment and the production method of the steamed green tea realize the whole process from picking to packaging, and can effectively reduce the moisture content of the tea leaves while ensuring the quality of the tea leaves through devices such as dehydration, leaf beating, drying and the like.

Description

Steamed green tea production equipment and production method

Technical Field

The invention relates to industrial equipment, in particular to steamed green tea production equipment and a production method.

Background

Green tea is one of the main tea types in China, and is a beverage prepared by taking new leaves or buds of tea trees, and carrying out processes of enzyme deactivation, shaping, drying and the like without fermentation. The color of the finished product and the tea soup after brewing are more, and the green style of the fresh tea is preserved. The green tea can prevent cancer, reduce fat and lose weight after being drunk frequently, and can also reduce the harm of nicotine to smokers. The green tea is prepared by fermenting, retains natural substances of fresh leaves, and contains more nutrients such as tea polyphenols, catechin, chlorophyll, caffeine, amino acids, vitamins, etc. The natural nutrient components in the green tea have special effects of anti-aging, cancer prevention, cancer resistance, sterilization, inflammation diminishing and the like, and are beyond the reach of other tea. The color of the dry tea and the tea soup and the tea bottom after being brewed are mainly green, so the tea is named as green tea. The green tea is prepared by first deactivating enzymes at high temperature in picked fresh leaves to kill various oxidases and keep the green color of the tea leaves, and then rolling and drying the leaves, wherein the green leaves in clear soup are the common characteristics of the green tea quality. The more famous green tea varieties are: west lake Longjing, Dongting Biluochun, Xinyang Maojian, etc. The advantages of green tea are: green tea is unfermented tea, and due to its characteristics, it retains more of the natural substances in the fresh leaves. Wherein, the tea polyphenol and the caffeine keep more than 85 percent of fresh leaves, the chlorophyll keeps about 50 percent, and the vitamin loss is less, thereby forming the characteristics of green tea, namely green leaves with clear soup and strong taste astringency. Has special effects on aging prevention, cancer resistance, sterilization, inflammation elimination and the like, and is not good enough for fermented tea and the like. The green tea is prepared from tea shoots as raw materials by typical processes of de-enzyming, rolling, drying and the like.

The existing green tea steaming production equipment has the disadvantages that tea leaves are dried in the air and are de-enzymed, then are directly dried at high temperature for a few times, and large tea leaves are dried at high temperature for a short time.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a steamed green tea production device and a production method, wherein the device is provided with a cutting device, a leaf beating device, a dehydration device and a drying device, so that the moisture content in tea leaves can be effectively reduced while the quality of the tea leaves is ensured.

The following technical scheme is adopted:

a steamed green tea production apparatus comprising:

the tea leaf fixation device is provided with a steam heating assembly and is used for heating and fixation of tea leaves;

the first dehydration device is used for heating and dehydrating the tea leaves after fixation;

the leaf beating device is used for drying and conveying the tea leaves;

the at least one second dehydration device is provided with a second heating component and a second conveying component and is used for heating, dehydrating and conveying the tea leaves;

at least one first drying device for drying the dehydrated tea;

the cooling device is used for cooling the dried tea leaves at normal temperature;

and the at least one second drying device is used for drying the cooled tea leaves.

Preferably, the steam heating assembly comprises a rack, a conveying unit, a fixation chamber for containing tea leaves and a steam unit for fixing the tea leaves, wherein the rack is used for supporting the conveying unit, the fixation chamber and the steam unit, and the conveying unit is used for driving the tea leaves to be input and output along an inlet and an outlet of the fixation chamber.

Preferably, the first dehydration apparatus includes:

the first support cylinder is provided with a first cavity for containing tea;

the first ventilation assembly is arranged on the supporting cylinder, communicated with the first cavity and used for providing air guide for the interior of the first cavity;

the first heating assembly is communicated with the first cavity and is used for providing a heating source for the first cavity;

and the first conveying assembly is arranged in the first cavity and can be rotationally connected with the first support cylinder as a whole relative to the rack.

First conveyor components is including a plurality of rotating vane one, a blade is the interval setting along the inner wall that supports a section of thick bamboo one, a blade is the angle setting with the length direction that supports a section of thick bamboo one, through power supply driving vane one with support a section of thick bamboo one and produce the drive power along direction of feed, drive power is used for driving tealeaves and carries along the transport route of cavity one.

Preferably, the threshing device comprises:

the supporting box body is internally provided with a first cavity, and the outside of the first cavity is provided with an opening part;

the door body structure is connected with the supporting box body and is used for opening and/or closing the opening part;

the leaf beating assembly is connected with the supporting box body, is arranged at an angle with the horizontal direction and is used for providing power for decomposition and conveying of the tea leaves;

and the first cooling unit is connected with the supporting box body and used for conveying a cooling medium in the supporting box body and cooling the tea leaves in the box body.

Preferably, the threshing assembly comprises:

a rotating shaft driven by a power source;

the leaf of multiunit is beaten the unit, rotates with the axis of rotation synchronous, the leaf that the unit and axis of rotation enclose into semi-enclosed circumference form beats the guide way for the transport of tealeaves, the leaf is beaten the unit and is included:

the first blade knot structure is used for being connected with the rotating shaft;

the second threshing structure is connected with the rotating shaft and arranged at an angle with the rotating shaft;

the leaf beating guide channel is formed by a space enclosed between a leaf beating structure I and a leaf knotting structure II;

and the second leaf beating structure is driven by the power source to generate driving force along the feeding direction, and the driving force is used for driving the tea leaves to be conveyed along the conveying path of the leaf beating guide channel.

Preferably, the second dehydration apparatus comprises:

the second supporting cylinder is provided with a second cavity for containing tea;

the second heating assembly is communicated with the second cavity and is used for providing a heating source for the second cavity;

and the second conveying assembly is arranged in the second cavity and can be rotationally connected with the second support cylinder as a whole relative to the rack.

The second conveying assembly comprises a plurality of rotating blades II, the blades II are arranged at intervals along the inner wall of the supporting barrel II, the blades II and the length direction of the supporting barrel II are arranged at angles, driving force along the feeding direction is generated by the power source driving blades II and the supporting barrel II, and the driving force is used for driving tea leaves to be conveyed along the forward direction.

Preferably, the tea leaf cutting device further comprises a cutting device arranged at the upstream of the green removing device and used for cutting tea leaves, the cutting device comprises a blade unit used for cutting the tea leaves, a connecting unit used for supporting the blade unit and a transmission assembly used for driving the blade unit to rotate, and the blade unit is arranged in a rotary structure.

Preferably, the crushing and screening device further comprises a crushing and screening device, and the crushing and screening device comprises:

the crushing assembly is used for crushing the dried tea leaves;

the first screening component is used for screening the tea stalks and the leaves of the crushed tea leaves, and is provided with a first blanking component for containing the tea stalks;

the sorting assembly is used for removing sweaters from the screened blades;

and the second screening component is used for qualified screening of the sorted tea leaves, is connected with the crushing component through the screening connecting component and is used for conveying the screened defective products into the crushing component to be crushed.

Preferably, be provided with the induction element on the crushing subassembly for the full storehouse of tealeaves in the chamber is placed in the response crushing, induction element is connected with the conveying unit electricity of tealeaves for control conveying unit's conveying speed.

A method for producing steamed green tea comprises:

1) steaming the tea leaves;

2) primarily dehydrating the tea leaves subjected to the steaming treatment, threshing the tea leaves after the primary dehydration, and heating and dehydrating the tea leaves for at least one time after the threshing treatment;

3) and (3) drying the tea leaves subjected to heating dehydration for at least one time to obtain steamed green tea.

In the method, after the tea leaves are steamed, the tea leaves are subjected to primary dehydration, threshing and heating dehydration treatment, and the mode of matching multiple dehydration treatments with threshing treatments is adopted, so that the tea leaves are slowly and uniformly dehydrated, the influence of continuous dehydration on the sensory quality of the tea leaves is prevented, meanwhile, the threshing is also beneficial to liquefying the moisture in the stems of the tea leaves onto the leaves, the drying temperature is controlled, and the drying efficiency is improved. And then, the steamed green tea with good sensory quality, low and uniform water content and higher nutrition cost retention rate can be obtained by drying treatment.

As a preference, the first and second liquid crystal compositions are,

step 1) before steaming the tea leaves, spreading and drying the tea leaves until the tea leaves are withered and broken.

Spread and dry in the air to tealeaves before steaming green and handling, the initial water content when can effectively reducing tealeaves and handling improves steaming green's efficiency and effect, and broken leaf can be beaten into the scattered multi-disc with tealeaves, ensures that each position of tealeaves all can obtain comprehensive even drying and dehydration.

As a preference, the first and second liquid crystal compositions are,

the spreading and drying thickness of the tea is controlled to be less than or equal to 10.5cm, and the spreading and drying time is 6-12 hours.

When spreading and airing, the spreading thickness is too large, so that the spreading and airing effect of the lower-layer tea leaves is poor, the spreading and airing effect of the tea leaves is also poor easily due to too short spreading and airing time, the water content in the tea leaves is kept high, and steaming is not facilitated. And if the spreading and drying time is too long, the tea leaves are easily over-dehydrated to cause withering and yellow.

As a preference, the first and second liquid crystal compositions are,

the set temperature of the steaming treatment in the step 1) is 95-105 ℃, and the steaming treatment lasts for 80-120 s.

The green steaming is carried out under the conditions, so that the green color quality of the tea can be more effectively maintained, the oxidase activity in the fresh tea can be effectively destroyed and passivated under the temperature condition, the enzymatic oxidation of tea polyphenol and other nutrient components in the fresh tea is inhibited, meanwhile, the green steaming treatment can effectively soften the tea and facilitate the forming, simultaneously, the green odor of the fresh tea is emitted, and the formation of good fragrance is promoted. After the temperature reaches about 110 ℃, the retention rate of the nutrient components in the fresh tea leaves can be obviously influenced, and the nutrient components in the tea leaves can be reduced. And when the temperature is lower than 90 ℃, the steaming treatment cannot be effectively carried out.

As a preference, the first and second liquid crystal compositions are,

step 2), setting the initial dehydration temperature to be 90-120 ℃, and continuing the initial dehydration for 30-60 s;

and 2) heating and dehydrating at the set temperature of 90-120 ℃, and continuously dehydrating for 90-150 s in a single heating process.

Under the conditions, residual moisture on the leaf surfaces of the tea leaves can be effectively removed by performing primary dehydration, and partial moisture in the tea leaves can be removed mildly by performing multiple times of heating dehydration. The method mainly controls the temperature of primary dehydration to be lower, the duration time to be shorter, ensures that the surface moisture of the tea can be effectively removed, avoids the dehydration of the tea leaves during the primary dehydration, and heats the tea leaves for dehydration after threshing, and can effectively realize the equilibrium of the dehydration. The heating dehydration is to control the dehydration of the tea, simultaneously, not to lose excessive nutrient components, improve the retention rate of the nutrient components, avoid the problems of withered yellow tea, loss of fragrance and the like caused by single dehydration too vigorously and ensure the nutrient quality and the sensory quality of the tea.

As a preference, the first and second liquid crystal compositions are,

step 2) performing dehumidification treatment by matching the primary dehydration;

the dehumidification treatment comprises any physical dehumidification mode of ventilation treatment or water vapor adsorption treatment.

The main purpose of dehumidification processing is to reduce the water vapor content in the primary dehydration processing environment so as to ensure that the water vapor is not condensed on the surface of the tea again due to temperature reduction in the cooling process after primary dehydration is finished.

As a preference, the first and second liquid crystal compositions are,

and 2) when heating dehydration is carried out for multiple times, cooling treatment is carried out after each heating dehydration until the temperature is less than or equal to 20 ℃.

The heating dehydration is matched with the cooling, so that the water balance and the buffering inside the tea can be realized, and the problems that the outer layer of the tea is dry and the inner layer still keeps higher water content due to excessive single dehydration amount are avoided. Meanwhile, the retention rate of the nutrient components can be further improved by cooling to less than or equal to 20 ℃, and the retention amount of the nutrient components can be improved by more than 10% compared with the temperature of cooling to 25 ℃.

As a preference, the first and second liquid crystal compositions are,

step 2) introducing cooling air to the tea leaves during or before the threshing treatment;

the temperature of the cooling air is less than or equal to 35 ℃.

The cooling air can rapidly cool the primarily dehydrated tea leaves and can take away the water vapor in the primarily dehydrated environment. Further control cooling air temperature is 20 ~ 35 ℃ cooling air, improves the effect of taking away steam when can effectively cooling down, further avoids the steam to condense.

As a preference, the first and second liquid crystal compositions are,

step 3), setting the drying treatment temperature to be 90-140 ℃;

and 3) when multiple drying treatments are carried out, cooling treatment is carried out after each drying treatment, and the cooling is carried out until the temperature is less than or equal to 20 ℃.

The drying treatment is carried out at least twice, the temperature of the first drying treatment is set to be 120-140 ℃, pre-drying can be effectively and quickly realized, the first drying time is 60-120 s, the temperature of the subsequent drying treatment is 90-110 ℃, the single continuous time is not more than 60s, and the tea is dried until the water content of the tea is 5.5-6.5%. Cooling is alternated in the gaps of the drying treatment, so that the drying uniformity of the tea can be ensured, the problems of partial withering and yellowing of the tea and the like are avoided, and the sensory quality and the nutritive value of the tea are ensured.

As a preference, the first and second liquid crystal compositions are,

and 3) carrying out at least one screening treatment after the drying treatment, wherein the screening treatment sequentially comprises crushing, screening and sorting.

The leaf stalk can effectively be peeled off to the branch sieve after smashing, follows the sweater in the tealeaves is got rid of to the mode of electricity letter sorting, can carry out further secondary after the electricity letter sorting and divide the sieve, and the secondary divides the sieve to divide into according to the production demand, is greater than the tealeaves of production demand size, smashes, divides the sieve and the electricity letter sorting with next batch tealeaves once more, satisfies the tealeaves of production demand size and packs as the finished product, and minimum tealeaves is handled as the tea ash.

The invention achieves the following beneficial effects:

(1) the green tea steaming production equipment is provided with a plurality of groups of dehydration devices, tea leaves are dried by the internal heating assembly of the device, and in the drying gap conveying process, a part of tea leaf vapor can be liquefied by utilizing liquefaction and moisture regaining, so that the moisture in the tea leaves is efficiently removed, and the problems that the existing green tea production equipment does not adopt a dehydration device, is directly dried at high temperature and has lower tea leaf quality are solved;

(2) the green tea steaming production equipment is provided with the cutter device, tea leaves are cut into multiple sections of small pieces by the cutter device and then are subjected to enzyme deactivation and drying treatment, so that uniform drying and dehydration of all parts of the tea leaves can be ensured, and the problems that the existing green tea production equipment only performs single-cutter cutting, tea leaves are relatively large and stacked together, and the drying efficiency is low are solved;

(3) the green tea steaming production equipment is provided with the leaf beating device, the leaf beating device comprises a leaf beating structure and a bearing structure, a semi-closed circumference is formed between the leaf beating structure and the bearing structure, a certain angle is formed between the leaf beating structure and a rotating shaft, the forward feeding is realized while the moisture in the leaf stalks is beaten out of the leaves, and the defect that the moisture in the leaf stalks cannot be fed and scattered by the existing green tea steaming production equipment is overcome;

(4) the green tea steaming production equipment comprises a plurality of groups of drying devices, and is used for drying for multiple times, and the cooling device is additionally arranged in the drying devices, so that the moisture content in tea leaves is reduced while the color and the taste of the tea leaves are ensured, and the problem that the quality of the tea leaves is influenced by direct high-temperature drying of the existing green tea production equipment is solved.

(5) According to the production method of the steamed green tea, multiple dehydration and threshing are adopted for matching, so that the produced tea has good sensory quality, green and moist color, yellow green and bright liquor color, strong aroma, mellow taste and balanced water content, is favorable for storage and transportation, has higher nutrient content and higher nutritive value.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

FIG. 1 is a schematic structural view of an embodiment of a steamed green tea manufacturing apparatus according to the present invention;

FIG. 2 is a cross-sectional view of an embodiment of the cutting device of the present invention;

FIG. 3 is a top view of an embodiment of the cutting device of the present invention;

FIG. 4 is a schematic structural diagram of an embodiment of the water-removing device of the present invention;

FIG. 5 is a schematic structural view of a first embodiment of the dehydration apparatus of the present invention;

FIG. 6 is a cross-sectional view of a first embodiment of the dehydration engine of this invention;

FIG. 7 is a schematic structural diagram of an embodiment of the threshing device of the present invention;

FIG. 8 is a schematic view of a portion of a threshing apparatus according to an embodiment of the present invention;

FIG. 9 is a schematic structural view of an embodiment of a threshing assembly according to the present invention;

FIG. 10 is a side view of an embodiment of the present invention;

FIG. 11 is a schematic structural view of a second embodiment of the dehydration apparatus of this invention;

FIG. 12 is a cross-sectional view of a second embodiment of the dehydration engine of this invention;

FIG. 13 is a schematic view of the structure of the pulverizing sieve device of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention without any inventive step, are within the scope of protection of the invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and claims of the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one.

As shown in fig. 1, as an embodiment of the present invention, a steamed green tea production apparatus includes a water-removing device 1, a first dehydration device 2, a leaf beating device 3, a second dehydration device 4, a first drying device 5, a cooling device 6, a second drying device 7, and a cutter device 8, wherein the first dehydration device 2, the leaf beating device 3, the second dehydration device 4, etc. may be provided in plurality, and particularly, provided and assembled as required, in this embodiment, the water-removing device 1 is provided with a steam heating assembly 11, the first dehydration device 2 is additionally provided with a first ventilation assembly 22, the second dehydration device 4 is provided with a second heating assembly 42 and a second conveying assembly 43, the first drying device 5 is provided behind the second dehydration device 4, and the second drying device 7 is provided behind the cooling device 6. The steam heating component 11 is used for heating and de-enzyming the tea leaves; the oxidase activity in the fresh tea leaves is destroyed and passivated by the enzyme deactivating high temperature, the enzymatic oxidation of tea polyphenol and the like in the fresh tea leaves is inhibited, the water in the fresh tea leaves is evaporated, the tea leaves are softened and are convenient to form, simultaneously, the green odor is emitted, and the formation of good fragrance is promoted. The enzyme deactivation mode comprises the following steps: parching, steaming, baking, soaking and radiating. In the embodiment, the water-removing is performed by heating steam, in other embodiments, water-removing methods such as baking, pan-frying and the like can be adopted, and the same water-removing effect can be achieved. The tea leaves after being steamed and de-enzymed contain more water, and the tea leaves after being de-enzymed are heated and dehydrated through the first dehydrating device 2. The tea leaves are subjected to steam de-enzyming and not subjected to drying treatment, the water content is high, the first ventilation assembly 22 is adopted to facilitate air circulation, and steam in the first dehydration device 2 is discharged. The leaf beating device 3 is used for cooling and conveying tea leaves, after primary dehydration is carried out through the first dehydration device 2, more moisture is still contained in the tea leaves, particularly, the water content in tea leaf stalks is higher, if independent processing is not carried out, moisture in the tea leaf stalks flows in the subsequent processing process, so that the quality of the tea leaves cannot be guaranteed, therefore, the leaf beating device 3 is adopted to break up the moisture in the tea leaf stalks onto leaves, and the drying speed is favorably improved and the quality of the tea leaves is guaranteed. In the production process of the green tea, in order to ensure the freshness and the mellow taste of the tea, the drying treatment at a lower temperature is adopted, so that the water content is only slightly reduced after the first dehydration, and the subsequent dehydration operation is carried out. The second heating assembly 42 and the second conveying assembly 43 are used for heating, dehydrating and conveying the tea leaves, at least one second dehydrating device 4 is provided, in the embodiment, two second dehydrating devices are provided, in other embodiments, other numbers of second dehydrating devices can be set, and the same dehydrating effect can be achieved according to the water content to be remained after the processing of the dehydrating devices. After the first dehydration in the first dehydration device, the water vapor content in the second dehydration device is reduced to a certain degree, so that the ventilation assembly does not need to be arranged on the dehydration device. In the present embodiment, the first drying device 5 is used for drying the dehydrated tea leaves; in the drying process, the drying is carried out in a multi-time drying mode, a cooling process is mixed in the drying process, the drying is carried out through a cooling device, in the embodiment, the cooling process adopts normal-temperature cooling, a group of drying devices which are not heated are used as the cooling device, and in other embodiments, devices which are communicated with the outside air, such as a conveyor belt, can also be used as the cooling device. The cooling device is used for dampening the primarily dried tea leaves, centralizes the moisture of the tea leaves by utilizing liquefaction, is convenient for removing the moisture, and can avoid long-time drying treatment from influencing the quality of the tea leaves; the second drying device is used for drying the cooled tea leaves. The steaming green tea production equipment is provided with a plurality of groups of dehydration devices, tea leaves are dried by an internal heating assembly of the device, and in the process of drying interval conveying, partial tea leaf vapor can be liquefied by utilizing liquefaction and moisture regaining, so that the moisture in the tea leaves is efficiently removed, and the problems that the existing green tea production equipment does not adopt a dehydration device, is directly dried at high temperature and has lower tea leaf quality are solved; the leaf beating device realizes forward feeding while beating water in the leaf stalks out of the leaves, and solves the defect that the existing green tea steaming production equipment cannot feed and break up the water in the leaf stalks; still include multiunit drying device in addition, divide and dry many times, be provided with a cooling device in addition among the drying device, be favorable to guaranteeing the moisture content in the tealeaves when tealeaves color and luster, taste, solved the problem that the direct high temperature of current green tea production facility is dried and is influenced the tealeaves quality.

According to the embodiment of the invention, before the tea leaves are subjected to enzyme deactivation by the enzyme deactivation device, the tea leaves are cut by the cutter device 8, the picked tea leaves are subjected to primary thinning for the first time, namely, the tea leaves are cut into small blocks by the cutter, so that the cutter device 8 of the embodiment is arranged at the upstream of the enzyme deactivation device 1, and the tea leaves are cut before the enzyme deactivation, thereby being more convenient for the enzyme deactivation of the tea leaves. The cutting means of the sword of this embodiment 8 preferred is the rotation type, to tealeaves cut into slices before drying in the air after cooling out in the stand, traditional sword is cut the device and is just cut tealeaves list sword, it is still great to handle back tealeaves blade, great tealeaves blade is piled up and is unfavorable for subsequent drying process together, in this embodiment, sword is cut the device and is set the rotation type cutting, increase the number of times that tealeaves is cut, it is used for cutting tealeaves into the multistage piece, make tealeaves can thermally equivalent in drying process, guarantee tealeaves quality and improvement drying efficiency.

According to an embodiment of the present invention, as shown in fig. 2 and 3, the knife cutting device 8 comprises a blade unit 81, a connecting unit 82 and a transmission assembly 83, wherein the blade unit 81 is used for cutting tea leaves, the blade unit of the present embodiment is configured in a rotary structure, the connecting unit 82 is used for supporting the blade unit 81, the transmission assembly 83 is used for driving the blade unit to rotate through the support of the connecting unit 82, in this embodiment, the blade unit includes a shaft unit 811, by which the blade is mounted by the connection unit 82, and a blade 812, which is disposed around the shaft unit, the blade rotates around the shaft unit, the tea leaves enter the cutter-cutting device and then are cut by the blade in a rotating way, the shaft unit is used as a rotating shaft and is rotated by inputting power through the transmission component, therefore, the tea leaves are cut into a plurality of pieces by the blade in the process of quick rotation, and the primary cutting of the tea leaves is completed. The tea leaves are cut into a plurality of sections of small pieces by the cutter cutting device and then are subjected to enzyme deactivation and drying treatment, so that the uniform drying and dehydration of all parts of the tea leaves can be ensured, and the problems that the existing cutter cutting device of green tea production equipment only performs single-cutter cutting, the tea leaves are greatly stacked together, and the drying efficiency is low are solved;

according to an embodiment of the present invention, as shown in fig. 4, the steam heating assembly 11 includes a conveying unit 111, a frame 112, a de-enzyming chamber 113 and a steam unit 114, wherein the de-enzyming chamber is used for containing tea leaves, the steam unit is used for heating and generating steam to de-enzyme the tea leaves, the tea leaves are contacted with the steam generated by heating in the de-enzyming chamber to de-enzyme the tea leaves, the texture and color of the tea leaves can be well maintained by the de-enzyming of the embodiment with the steam, the de-enzyming chamber, the steam unit and the conveying unit of the embodiment are supported by the frame and jointly constitute the steam heating assembly, the conveying unit of the embodiment has a power source, and the purpose of inputting and outputting the tea leaves from the inlet and the outlet of the de-enzyming chamber is achieved, and.

According to the embodiment of the invention, as shown in fig. 5 and 6, the first dewatering device 2 comprises a first supporting cylinder 21, a first ventilation assembly 22, a first heating assembly 23 and a first conveying assembly 24, wherein the first supporting cylinder 21 is provided with a first cavity 211 for accommodating tea leaves, and the first cavity 211 is provided with a sufficient length and a sufficient width to facilitate the tea leaves to be completely scattered along the first cavity 211 for dewatering; the first ventilation assembly 22 is arranged on the first support cylinder 21, and a plurality of fan structures are arranged along the inner wall of the first cavity 211; the first heating assembly 23 is communicated with the first cavity and is used for providing a heating source for the first cavity to carry out preliminary dehydration treatment; the first conveying assembly 24 serves as a power source for tea leaves in the treatment process, and is used for conveying the tea leaves from the inlet of the first cavity 211 to the outlet of the first cavity 211 along the body of the first cavity 211 and sending the tea leaves to the next working unit for treatment. The tea leaf has higher water content after being de-enzymed, and when the tea leaf is treated in the first dewatering device, a large amount of water vapor can be contained in the first supporting barrel, and the drying efficiency can be reduced if the tea leaf is not discharged in time, so that the first ventilation assembly 22 is adopted for removing the large amount of water vapor in the first supporting barrel.

According to the embodiment of the invention, as shown in fig. 6, the first conveying assembly 24 includes a plurality of first rotating blades 241, the first rotating blades 241 of this embodiment are arranged along the inner wall of the first supporting cylinder at intervals, the first rotating blades 241 are arranged at an angle with the length direction of the first supporting cylinder 21, the arrangement direction of the first rotating blades is arranged along the feeding direction and is used for driving the tea leaves to be conveyed along the feeding direction, the first rotating blades of this embodiment drive the first rotating blades and the first supporting cylinder through a power source to generate a driving force along the feeding direction, the driving direction of the driving force is consistent with the feeding direction of the tea leaves, the tea leaves are synchronously rotated and rolled along the first supporting cylinder 21 to be dewatered, and the tea leaves after being rotated and dewatered are conveyed along the conveying path of the first cavity to the next working unit to be processed under the driving force. The first dewatering device of this embodiment, tealeaves is at the rotatory in-process of dehydration, and this drive power drive of rethread guarantees that tealeaves can realize again feeding forward when can fully contact with the air.

According to the embodiment of the present invention, as shown in fig. 7 and 8, the leaf beating device 3 includes a supporting box 31, a door structure 32 and a leaf beating assembly 33, wherein a first chamber 311 is formed in the supporting box 31, an opening 3111 is arranged outside the first chamber and located at an upper position of the supporting box 31, the door structure and the leaf beating assembly are both connected with the supporting box, the door structure is arranged at an upper position of the supporting box, and the leaf beating assembly is arranged in the first chamber of the present embodiment. In this embodiment, the chamber i serves as a processing space for tea leaves, and the opening is used as a device for connecting the chamber i with the outside, so that the user can clean and maintain the inside of the leaf threshing device. The door structure can be used for opening and/or closing the opening part of the first chamber, the door structure can be set to be a rotatable plate, the door structure can be arranged inside or outside the first chamber, and whether the door structure is arranged inside or outside, the door structure can be shifted towards the opening part to close the opening part. In this embodiment, the leaf beating component is arranged at an angle to the horizontal direction and is used for providing power for the decomposition and the conveying of the tea leaves. The leaf beating component can beat the moisture in the tea leaf stalk to scatter to the blade when overturning tea to realize feeding forward, carry out the threshing next time, solved current leaf beating device and can only realize the upset of tealeaves, scatter tealeaves and carry out the drying, and can't beat the problem of moisture in the scattered leaf stalk, drying efficiency is low.

According to the embodiment of the invention, the threshing device further comprises a first cooling unit 34 connected with the supporting box body and used for conveying a cooling medium into the supporting box body to cool the tea leaves in the box body. Tea leaves are beaten the device and are handled before getting into the leaf, carry out the preliminary treatment after picking, wherein include to carry out steam to tea leaves and fix green, contain more vapor in the tea leaves this moment, it is comparatively inconvenient to concentrate moisture and pat under this condition, utilize the moisture liquefaction of first cooling unit in with tea leaves, help handling the moisture in the leaf stalk, a part of vapor can liquefy on the blade simultaneously, in-process is beaten to the leaf, can beat the drop of water that the liquefaction formed on the tea leaves after the processing of beating machine. After the tea leaves are subjected to enzyme deactivation, the contained moisture comprises steam and internal liquid water, the temperature of the tea leaves is higher at the moment, therefore, in the embodiment, the first cooling unit does not need to be cooled by adopting special cooling measures deliberately, and natural wind is introduced into the tea leaf beating device. In this embodiment, the first cooling unit adopts a fan, blows natural wind into the tea leaf beating device through the fan, and the tea leaves at higher temperature encounter natural wind at lower temperature and liquefy. First cooling unit sets up and beats the subassembly at the inside leaf of frame after, and this kind of design is convenient for increase the area of contact of natural wind and tealeaves, improves the efficiency of liquefaction. The first cooling unit is used for liquefying moisture in the tea leaves, so that the tea leaf beater can beat and disperse moisture in the tea stems conveniently. Through this first cooling unit, cool off tealeaves, avoid continuously carrying out the drying to tealeaves, influence tealeaves quality, can adopt the lower temperature to make partly steam liquefaction in the tealeaves simultaneously, the leaf of being convenient for is beaten the machine and is clapped and scatter to at the in-process that the leaf was beaten, can beat the drop of water that the liquefaction formed on the blade surface. The defects that the existing leaf beating device directly adopts a heat source to dry, cannot beat water in leaf stalks, has low drying efficiency and cannot well give consideration to the quality of tea leaves are overcome.

According to an embodiment of the present invention, as shown in fig. 9, the paddle assembly 33 includes a rotating shaft 331 and a paddle unit 332, the rotating shaft 331 is disposed in the first chamber 311, the paddle unit 332 is connected to the rotating shaft 331, the paddle unit is disposed in at least one, in this embodiment, three paddle units are disposed, and in other embodiments, more paddle units may be disposed. The reason for setting the leaf beating units into a plurality of units is that the time for processing the tea leaves in the leaf beating machine is prolonged, the tea leaves are turned and beaten for a plurality of times, meanwhile, the time for cooling in the first chamber can be prolonged, steam can be liquefied, and the moisture in the tea leaves can be beaten away and water drops on the leaf surfaces can be beaten away conveniently. The rotating shaft is driven by a power source, the leaf beating unit runs under the driving of the rotating shaft, the leaf beating unit takes the rotating shaft as a central axis to form a semi-closed cylindrical leaf beating guide channel, tea leaves move in the leaf beating guide channel in the processing process, and the leaf beating guide channel is used for conveying the tea leaves. Different from the traditional tea leaf beating machine which can only overturn tea leaves and can not realize the feeding function to complete the conveying of the tea leaves.

According to the embodiment of the present invention, as shown in fig. 9, the leaf beating unit 332 includes a receiving structure 3321 and a leaf beating structure 3322, each leaf beating unit includes at least one set of receiving structure and leaf beating structure, in this embodiment, each leaf beating unit includes two sets of receiving structure and leaf beating structure, the receiving structure and leaf beating structure are uniformly arranged around the rotating shaft, such an arrangement can ensure that the tea leaves can effectively beat in the operation process while the tea leaves fall into the leaf beating guide channel, the tea leaves beated by the leaves are received and fed to the next step, the receiving structure is connected with the rotating shaft, the leaf beating structure is connected with the rotating shaft, and the angle between the leaf beating structure and the rotating shaft is arranged. In the embodiment, the blade beating guide channel is formed by a space enclosed between the bearing structure and the blade knotting structure, and when the blade beating device operates; the bearing structure and the blade knotting mechanism move around the rotating shaft, and the tracks of the bearing structure and the blade knotting mechanism when running around the rotating shaft form a blade beating guide channel. In the leaf beating process, tealeaves is beaten the direction passageway upset at the leaf, make tealeaves piled up originally and can scatter together, tealeaves enters into the leaf and beats inside the direction passageway, it is rotatory along with the axis of rotation, the structure is beaten tealeaves to accepting the structure to the leaf, it beats structurally to continue to enter into another leaf on this leaf beating unit through the rotation, because the leaf is beaten and is certain angle between structure and the axis of rotation, to the direction of feed slope, beat the holding power that the structure produced the slope through power supply drive leaf, this holding power is as the drive power along direction of feed, make tealeaves can enter into next leaf and beat on the unit, carry out the next leaf and beat.

According to an embodiment of the present invention, the receiving structure 3321 includes a receiving arm 3323 and a receiving arm 3324, one end of the receiving arm is connected to the rotating shaft, and the other end of the receiving arm is connected to the receiving arm, in this embodiment, the end of the receiving arm connected to the receiving arm is disposed in a curved manner and is bent in a direction close to the rotating shaft, in this embodiment, the direction of the receiving arm and/or the receiving arm is substantially parallel to the radial direction of the rotating shaft, the receiving arm is used for supporting the tea leaves, and the receiving arm drives the receiving arm to rotate around the rotating shaft under the action of the rotating shaft. The bearing hand and the bearing arm are arranged in a bending way, so that each leaf beating unit can form a semi-closed circumferential space, and the tea leaves are prevented from being thrown out of the leaves and beating the guide channel under the action of centrifugal force.

According to an embodiment of the present invention, the leaf knotting mechanism 3322 comprises a leaf beater 3325 and a leaf beater arm 3326, wherein one end of the leaf beater arm 3226 is connected to the rotating shaft, and the other end of the leaf beater arm is connected to the leaf beater, wherein the leaf beater arm is used for stirring the tea leaves, and the leaf beater arm is used for being connected to the leaf beater to transmit power to the leaf beater arm. The leaf beater and/or the supporting surface formed by the leaf beater and/or the leaf beating arm are/is arranged at an angle with the axial direction of the rotating shaft, the leaf beater generates a driving force along the feeding direction through a power source, and the driving force is used for driving tea leaves to be conveyed along the feeding direction of the leaf beating guide channel.

According to the embodiment of the present invention, as shown in fig. 7 and 10, the leaf beating device further includes a frame unit 35, on which a feeding assembly 351 and a discharging assembly 352 are further disposed, wherein the feeding assembly is located above the first group of leaf knotting mechanisms arranged in the feeding direction, the discharging assembly is located below the last group of leaf knotting mechanisms arranged in the feeding direction, the frame unit is used for carrying and supporting the box body, the feeding assembly is used as an assembly for inputting tea leaves into the tea leaf beating device, and the discharging assembly is used as an assembly for outputting tea leaves outwards. In this embodiment, the tea leaves enter the leaf beating device through the feeding assembly, are beaten by the first leaf beating mechanism, are beaten for several times, and are then conveyed out of the leaf beating device through the last leaf beating unit.

According to an embodiment of the present invention, as shown in fig. 10, the discharging assembly 352 includes a conveying member 3521 and a discharging port 3522, wherein the conveying member is disposed at the bottom of the frame, and the discharging port is disposed above the conveying member. After the tea leaves are beaten, the tea leaves are conveyed to the position of the discharge port through the last group of tea leaf knotting mechanisms, then enter the conveying member through the discharge port, and are conveyed to other equipment through the conveying member for further processing. In this embodiment, the discharge port is used for discharging the tea leaves after the tea leaves are beaten, and the conveying member is used for conveying the tea leaves after the tea leaves are beaten to other equipment.

According to an embodiment of the present invention, as shown in fig. 7, the leaf beating device further includes a heat dissipation structure 36, in this embodiment, the heat dissipation structure is configured as a mesh opening structure, and is disposed above the rack. Under operating condition, the door body structure is sealed, and the frame of device is made to the tealeaves this moment is sealed relative the external world, if want to carry out the air exchange with the outside, need be provided with heat radiation structure in addition. The tea leaves are subjected to steam enzyme deactivation operation and primary heating dehydration before entering the leaf beating device, the tea leaves are higher in temperature when entering the leaf beating machine, and the tea leaves still contain more water vapor.

According to an embodiment of the present invention, as shown in fig. 11 and 12, the second dehydration device 4 includes a second support cylinder 41, a second heating assembly 42, and a second conveying assembly 43. The second supporting cylinder 41 is provided with a second cavity 411 for accommodating tea leaves, and the second cavity 411 has enough length and width, so that the tea leaves can be completely dispersed along the second cavity 411 for dehydration; the second heating component 42 is communicated with the second cavity and is used for providing a heating source for the second cavity to carry out dehydration treatment again; the second conveying assembly 43 serves as a power source for the tea leaves in the treatment process, and the tea leaves are conveyed from the inlet of the second cavity 411 to the outlet of the second cavity 411 along the body of the second cavity 411 and sent to the next working unit for treatment. At least one second dewatering device 4 is provided, in this embodiment two second dewatering devices are included. At the moment, the tea leaves are subjected to primary dehydration treatment, and the steam content in the second supporting cylinder 41 is not as high as that in the first dehydration device, so that the dehydration efficiency can be ensured without arranging a ventilation assembly in the second dehydration device.

Similar to the first conveying assembly, the second conveying assembly 43 includes a plurality of rotating blades 431, the blades 431 of this embodiment are arranged along the inner wall of the supporting cylinder two 41 at intervals, the blades 431 are arranged at an angle with the length direction of the supporting cylinder two 41, the arrangement direction of the blades is arranged along the feeding direction, and is used for driving the tea leaves to be conveyed along the feeding direction. The second dewatering device of this embodiment, tealeaves is at the rotatory in-process of dehydration, and this drive power drive of rethread guarantees that tealeaves can realize again feeding forward when can fully contact with the air.

According to the embodiment of the invention, as shown in fig. 13, the green tea steaming production equipment further comprises a smashing and screening device 9, the smashing and screening device comprises a smashing component 91, a first secondary screening component 92, an electric sorting component 93 and a second secondary screening component 94, the first secondary screening component 92 is provided with a first blanking component, and the second secondary screening component is connected with the smashing component through a screening connecting component. After the tea leaves are subjected to the drying treatment, the water content of the tea leaves is reduced to the standard of a finished product, the tea leaves are not subjected to the processes of stripping tea stalks and removing sweats, and the sizes of the tea leaves are also uneven, so that the tea leaves need to be crushed and screened by a crushing and screening device. After the tea leaves are dried, the tea leaves are still large at this time, the tea leaves are required to be continuously crushed, and the crushing assembly 91 is used for crushing the dried tea leaves; after the treatment, the tea stalks of the tea leaves are not removed yet and still mixed with the tea leaves, and the tea leaves need to be treated by the screening component, wherein the primary screening component is used for screening the crushed tea leaves by the tea stalks and the leaves; the electric sorting component 93 is used for removing sweater from the screened blades; after the sweater is removed, the tea leaves of different sizes are still mixed together, and a second screening is required. The second screening component is used for screening qualified tea leaves after sorting, in the embodiment, the second screening component divides the tea leaves into 3 different specifications according to the sizes, the largest tea leaves are sent to the crushing component to be continuously crushed, the medium tea leaves are used as finished products, and the smallest tea leaves are used as tea residues.

According to the embodiment of the invention, the crushing assembly 91 is provided with a sensing unit which is electrically connected with the tea conveying unit and is used for sensing the full bin of the tea in the crushing placing cavity and controlling the conveying speed of the conveying unit. When the sensing unit senses that tea leaves in the crushing and placing cavity are less, the speed of conveying the tea leaves to the sensing unit is increased, and when the sensing unit senses that the tea leaves in the crushing and placing cavity are more, the speed of conveying the tea leaves to the sensing unit is properly reduced.

According to the embodiment of the invention, the steamed green tea production equipment further comprises a foreign matter detection device, a weighing device and a packaging device. The tea after the treatment reaches the standard of a finished product, but the tea possibly contains metal and other foreign matters, the foreign matter detection device is used for detecting and removing the foreign matters in the tea, and weighing and packaging can be carried out after the treatment of the foreign matter detection device is finished.

According to the embodiment of the invention, the green tea package is divided into large and small packages, after the tea leaves are packed by the small packages, the large packages are continuously packed, and after the tea leaves are packed, whether the condition of multiple packages or missing packages exists is detected by a weighing device.

Example 1

A method for producing steamed green tea comprises steaming green tea,

the method comprises the following steps:

1) airing the picked tea leaves for 12 hours in a spreading way with the thickness of 10 +/-0.5 cm, crushing the tea leaves by a cutter, cutting one tea leaf into a plurality of tea leaves after crushing the tea leaves, and steaming the tea leaves for 100 seconds at 100 ℃;

2) carrying out primary dehydration at 120 ℃ for 30s on tea leaves subjected to green steaming treatment, simultaneously carrying out ventilation treatment, introducing cooling air at 30 +/-5 ℃ after primary dehydration to cool the tea leaves to be less than or equal to 35 ℃, then carrying out threshing treatment, liquefying steam by a first cooling unit in a threshing device, then using a beating piece to break up moisture in leaf stalks to the leaves, then using a receiving piece in the threshing device to convey the leaves forwards, beating the leaves to break up the moisture in the leaf stalks and realize forward feeding, carrying out heating dehydration at 90 ℃ for at least multiple times after threshing treatment, carrying out cooling treatment after each heating dehydration for 90s, cooling to the temperature of less than or equal to 20 ℃, and carrying out heating dehydration until the water content in the tea leaves is about 45-50%;

3) drying the tea leaves subjected to heating dehydration, setting the temperature of the first drying treatment at 140 ℃ for 60s, setting the temperature of the subsequent drying treatment at 90 ℃ for 60s, cooling treatment is carried out after each drying treatment, the temperature is cooled to be less than or equal to 20 ℃, the drying treatment is carried out until the water content of the tea is 5.5-6.5%, crushing, screening and electric sorting are finally carried out, the broken screening can effectively peel off the leaf stalks, then, the sweater in the tea is removed in an electric sorting mode, further secondary screening can be carried out after the electric sorting, the secondary screening is divided into the tea with the size larger than the production requirement according to the production requirement, the tea with the production requirement size is crushed, screened and electrically sorted with the next batch of tea again, the tea with the production requirement size is packaged as a finished product, the smallest tea is treated as tea ash, and the green tea packaged as a finished product is steamed green tea.

Example 2

A method for producing steamed green tea comprises steaming green tea,

the method comprises the following steps:

1) airing the picked tea leaves for 6 hours in a spreading way with the thickness of 6 +/-0.5 cm, crushing the tea leaves by a cutter, cutting one tea leaf into a plurality of tea leaves after crushing the tea leaves, and steaming the tea leaves for 100 seconds at 100 ℃;

2) primarily dehydrating the tea leaves subjected to green steaming treatment for 30s at 120 ℃, simultaneously performing ventilation treatment, introducing cooling air at 25 +/-5 ℃ after primary dehydration to cool the tea leaves to be less than or equal to 30 ℃, performing threshing treatment, liquefying the steam by a first cooling unit in a threshing device, then scattering water in leaf stalks to the leaves by using a beating piece, then conveying the leaves forwards by using a receiving piece in the threshing device, beating the leaves by using the beating piece to not only disperse the water in the leaf stalks but also realize forward feeding, performing heating dehydration at 90 ℃ for at least multiple times after threshing treatment, continuing for 120s each time, performing cooling treatment after heating dehydration each time, cooling to the temperature of less than or equal to 20 ℃, and performing heating dehydration until the water content in the tea leaves is about 45-50%;

3) drying the tea leaves subjected to heating dehydration, setting the temperature of the first drying treatment at 130 ℃ for 90s, setting the temperature of the subsequent drying treatment at 90 ℃ for 60s, cooling treatment is carried out after each drying treatment, the temperature is cooled to be less than or equal to 20 ℃, the drying treatment is carried out until the water content of the tea is 5.5-6.5%, crushing, screening and electric sorting are finally carried out, the broken screening can effectively peel off the leaf stalks, then, the sweater in the tea is removed in an electric sorting mode, further secondary screening can be carried out after the electric sorting, the secondary screening is divided into the tea with the size larger than the production requirement according to the production requirement, the tea with the production requirement size is crushed, screened and electrically sorted with the next batch of tea again, the tea with the production requirement size is packaged as a finished product, the smallest tea is treated as tea ash, and the green tea packaged as a finished product is steamed green tea.

Example 3

A method for producing steamed green tea comprises steaming green tea,

the method comprises the following steps:

1) airing the picked tea leaves for 12 hours in a spreading way with the thickness of 10 +/-0.5 cm, crushing the tea leaves by a cutter, cutting one tea leaf into a plurality of tea leaves after crushing the tea leaves, and steaming the tea leaves at 95 ℃ for 120 s;

2) carrying out primary dehydration at 90 ℃ for 60s on tea leaves subjected to green steaming treatment, simultaneously carrying out ventilation treatment, introducing cooling air at 30 +/-5 ℃ after primary dehydration to cool the tea leaves to be less than or equal to 35 ℃, then carrying out threshing treatment, liquefying steam by a first cooling unit in a threshing device, then using a beating piece to break up moisture in leaf stalks to the leaves, then using a receiving piece in the threshing device to convey the leaves forwards, beating the leaves to break up the moisture in the leaf stalks and realize forward feeding, carrying out heating dehydration at 90 ℃ for at least multiple times after threshing treatment, carrying out cooling treatment after each heating dehydration for 90s, cooling to the temperature of less than or equal to 20 ℃, and carrying out heating dehydration until the water content in the tea leaves is about 45-50%;

3) drying the tea leaves subjected to heating dehydration, setting the temperature of the first drying treatment at 120 ℃ for 120s, setting the temperature of the subsequent drying treatment at 110 ℃, setting the single-time duration at 30s, cooling treatment is carried out after each drying treatment, the temperature is cooled to be less than or equal to 20 ℃, the drying treatment is carried out until the water content of the tea is 5.5-6.5%, crushing, screening and electric sorting are finally carried out, the broken screening can effectively peel off the leaf stalks, then, the sweater in the tea is removed in an electric sorting mode, further secondary screening can be carried out after the electric sorting, the secondary screening is divided into the tea with the size larger than the production requirement according to the production requirement, the tea with the production requirement size is crushed, screened and electrically sorted with the next batch of tea again, the tea with the production requirement size is packaged as a finished product, the smallest tea is treated as tea ash, and the green tea packaged as a finished product is steamed green tea.

Example 4

A method for producing steamed green tea comprises steaming green tea,

the method comprises the following steps:

1) airing the picked tea leaves for 12 hours in a spreading way with the thickness of 10 +/-0.5 cm, crushing the tea leaves by a cutter, cutting one tea leaf into a plurality of tea leaves after crushing the tea leaves, and steaming the tea leaves at 105 ℃ for 90 s;

2) carrying out primary dehydration at 120 ℃ for 30s on tea leaves subjected to green steaming treatment, simultaneously carrying out ventilation treatment, introducing cooling air at 30 +/-5 ℃ after primary dehydration to cool the tea leaves to be less than or equal to 35 ℃, then carrying out threshing treatment, liquefying steam by a first cooling unit in a threshing device, then using a beating piece to break up moisture in leaf stalks to the leaves, then using a receiving piece in the threshing device to convey the leaves forwards, beating the leaves to break up the moisture in the leaf stalks and realize forward feeding, carrying out heating dehydration at 90 ℃ for at least multiple times after threshing treatment, continuing for 150s each time, carrying out cooling treatment after heating dehydration each time, cooling to the temperature of less than or equal to 20 ℃, and carrying out heating dehydration treatment until the moisture content in the tea leaves is about 45-50%;

Example 5

A method for producing steamed green tea comprises steaming green tea,

the method comprises the following steps:

1) airing the picked tea leaves for 12 hours in a spreading way with the thickness of 10 +/-0.5 cm, crushing the tea leaves by a cutter, cutting one tea leaf into a plurality of tea leaves after crushing the tea leaves, and steaming the tea leaves at 105 ℃ for 80 s;

2) carrying out primary dehydration at 120 ℃ for 30s on tea leaves subjected to green steaming treatment, simultaneously carrying out ventilation treatment, introducing cooling air at 30 +/-5 ℃ after primary dehydration to cool the tea leaves to be less than or equal to 35 ℃, then carrying out threshing treatment, liquefying steam by a first cooling unit in a threshing device, then using a beating piece to break up moisture in leaf stalks to the leaves, then using a receiving piece in the threshing device to convey the leaves forwards, beating the leaves to break up the moisture in the leaf stalks and realize forward feeding, carrying out heating dehydration at 120 ℃ for at least multiple times after threshing treatment, continuing for 90s each time, carrying out cooling treatment after heating dehydration each time, cooling to the temperature of less than or equal to 20 ℃, and carrying out heating dehydration treatment until the moisture content in the tea leaves is about 45-50%;

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

In summary, the above-mentioned embodiments are only preferred embodiments of the present invention, and all equivalent changes and modifications made in the claims of the present invention should be covered by the claims of the present invention.

Claims

1. A steamed green tea production facility which is characterized by comprising:

the leaf beating device is used for drying and conveying the tea leaves;

at least one first drying device for drying the dehydrated tea;

2. The steamed green tea production apparatus according to claim 1, characterized in that: the steam heating subassembly includes frame, conveying unit and the steam unit that is used for the chamber that completes of splendid attire tealeaves and is used for carrying out the deactivation of enzymes to tealeaves, the frame is used for supporting conveying unit and the chamber and the steam unit that completes, conveying unit is used for driving tealeaves to carry out input and output along the import and the export of the chamber that completes.

3. The steamed green tea production apparatus according to claim 1 or 2, characterized in that: the first dehydration device includes:

the first support cylinder is provided with a first cavity for containing tea;

4. The steamed green tea production apparatus according to claim 1, characterized in that: the leaf beating device comprises:

5. The steamed green tea production apparatus according to claim 4, wherein the leaf beating assembly includes:

a rotating shaft driven by a power source;

6. The steamed green tea production apparatus according to claim 1, characterized in that: the second dehydration device includes:

7. The steamed green tea production apparatus according to any one of claims 1 to 6, characterized in that: still include the sword and cut the device, the sword cuts the device and sets up in the upper reaches of the device that completes for cut tealeaves, the sword cuts the device including the blade unit that is used for cutting tealeaves, the coupling unit that is used for supporting the blade unit and be used for driving the pivoted transmission assembly of blade unit, the blade unit is set up to rotation type structure.

8. The steamed green tea production apparatus according to claim 7, characterized in that: still including smashing and dividing the sieve device, it includes to smash and divide the sieve device:

the crushing assembly is used for crushing the dried tea leaves;

the sorting assembly is used for removing sweaters from the screened blades;

9. The steamed green tea production apparatus according to claim 8, characterized in that: the crushing component is provided with an induction unit for inducing crushing of the full bin for placing tea in the cavity, and the induction unit is electrically connected with the conveying unit of the tea and used for controlling the conveying speed of the conveying unit.

10. A method for producing steamed green tea using the production apparatus according to any one of claims 1 to 9, comprising:

1) steaming the tea leaves;