Tea leaf fixing equipment

Abstract

The disclosed embodiment provides a tea-withering device, comprising: a chassis, comprising a first chamber and a second chamber separated by a partition, a first discharge port that can be opened and closed is provided at the bottom of the second chamber, and a first exhaust port is provided at the top; a driving device of a hollow main shaft pivotally mounted on the chassis; a tea-withering roller, located in the second chamber, comprising a tank body fixedly connected to the hollow main shaft, and a plurality of exhaust branch pipes connected and communicated with the hollow main shaft, each exhaust branch pipe having a plurality of exhaust holes, the tank body having an openable and closable feed port, an openable and closable second discharge port, and a second exhaust port; a feeding device, comprising a feed hopper arranged at the top of the first chamber and a conveying mechanism connected to the feed hopper; a steam boiler, located in the first chamber and communicated with the hollow main shaft through a steam pipe; when the tea-withering roller is in a non-withering state, the feed port is docked with the conveying end of the conveying mechanism, and the second discharge port is opposite to the first discharge port.

Description

Technical Field

[0001] The present invention relates to the technical field of tea processing, and in particular to a tea withering device. Background Art

[0002] Tea is one of the three major beverages in the world, with more than 60 tea-producing countries and regions and more than 2 billion tea-drinking people. Tea contains tea polyphenols, tea polysaccharides, theanine, vitamins and minerals, and has the functions of refreshing the mind, aiding digestion and anti-oxidation, and is loved by consumers all over the world. In December 2019, the United Nations General Assembly announced that May 21 of each year will be designated as "International Tea Day" to praise the economic, social and cultural value of tea and promote the sustainable development of global agriculture.

[0003] The production processes of different types of tea are different. Taking green tea as an example, its production process mainly includes three steps: withering, rolling and drying. The withering process is particularly important. High temperature withering destroys and passivates the oxidase activity in the tea leaves, inhibits the enzymatic oxidation of various enzymes in the fresh leaves, such as tea polyphenol enzymes, and evaporates part of the moisture in the fresh leaves, making the tea leaves softer and easier to roll and shape, while promoting the formation of tea aroma.

[0004] In the related technologies, the methods of tea leaf killing mainly include pot-type killing, drum-type killing, steam-type killing, hot air-type killing, microwave-type killing, ultra-high frequency-type killing, electromagnetic wave-type killing, etc. Among them, drum-type killing often uses metal conduction to directly heat the drum, which is simple to operate, convenient and fast, but will cause uneven heating temperature of the equipment, making the tea leaves unevenly heated, affecting the quality of the tea leaves; and the steam heat conduction type uses saturated steam as a medium to heat the tea leaves, which can solve some problems, but there will still be a phenomenon that the tea leaves and steam cannot fully contact, and the tea leaves remain in the steam exhaust hole, making the tea leaf killing efficiency low and the killing effect poor. Summary of the invention

[0005] The purpose of the embodiment of the present disclosure is to provide a tea leaf withering device to improve the tea leaf withering effect and efficiency. The specific technical solution is as follows:

[0006] In order to achieve the above-mentioned purpose, the embodiment of the present disclosure provides a tea leaf withering device, the tea leaf withering device comprising:

[0007] The chassis comprises a first chamber and a second chamber separated by a partition, the second chamber is provided with a first discharge port which can be opened and closed at the bottom, and a first steam exhaust port at the top;

[0008] A hollow main shaft pivotally mounted on the chassis and a driving device for driving the hollow main shaft to rotate;

[0009] The killing drum is located in the second chamber, comprising a tank body penetrated by the hollow main shaft and fixedly connected to the hollow main shaft, and a plurality of exhaust branch pipes located in the tank body and connected and communicated with the hollow main shaft, wherein each exhaust branch pipe has a plurality of exhaust holes, and the tank body has an openable and closable feeding port, an openable and closable second discharge port, and a second exhaust port;

[0010] A feeding device, comprising a feeding hopper disposed on the top of the first chamber and a conveying mechanism connected to the feeding hopper and extending into the second chamber

[0011] a steam boiler located in the first chamber and connected to the hollow main shaft through a steam pipe;

[0012] When the killing drum is in a non-killing state, the feed port is connected to the conveying end of the conveying mechanism, and the second discharge port is opposite to the first discharge port.

[0013] In some embodiments, the working state of the tea leaf fixing device includes a feeding state, a fixing state and a discharging state, and the tea leaf fixing device also includes a controller for

[0014] In the feeding state, the feeding port is controlled to be opened, and the driving device, the first discharge port and the second discharge port are controlled to be closed;

[0015] In the finishing state, the driving device is controlled to be turned on, and the feed port, the first discharge port and the second discharge port are controlled to be closed;

[0016] In the discharging state, the first discharging port and the second discharging port are controlled to be opened, and the driving device and the feeding port are controlled to be closed.

[0017] In some embodiments, each exhaust branch pipe is hinged to the hollow main shaft via a pin, and the axis of the pin is orthogonal to the axis of the hollow main shaft.

[0018] In some embodiments, the plurality of exhaust branch pipes are divided into two groups symmetrically distributed relative to the hollow main axis, and a swing angle range of each exhaust branch pipe relative to the pin shaft is 120° to 150°.

[0019] In some embodiments, the tea leaf fixing device further includes a cooling device, which includes: a water inlet pipeline connected to a water supply device outside the chassis, and a first cooling pipeline, a second cooling pipeline, a plurality of connecting pipelines and a return water pipeline, wherein:

[0020] The water inlet pipeline is connected to the first cooling pipeline;

[0021] The first cooling pipeline is an annular pipeline and is arranged around the outer side of one end of the tank body close to the steam boiler;

[0022] The second cooling pipeline is an annular pipeline and is arranged around the outer side of the end of the tank body away from the steam boiler;

[0023] The plurality of connecting pipelines are evenly arranged along the circumference of the tank body and connect the first cooling pipeline and the second cooling pipeline;

[0024] The return water pipeline is connected to the first cooling pipeline and the steam boiler.

[0025] In some embodiments, the tea withering device further comprises a water pump disposed on the water inlet pipeline, and a solenoid valve disposed on the water return pipeline, wherein the solenoid valve is provided with a temperature sensor for detecting the water temperature in the water return pipeline;

[0026] The working state of the tea-withering device further includes a cooling state, and the cooling state includes a first preset time period and a second preset time period which are sequentially set;

[0027] The controller is further used to control the water pump to turn on and the solenoid valve to turn off within the first preset time period;

[0028] During the second preset time period, the water pump is controlled to be closed, and when the water temperature in the return water pipeline is greater than or equal to the preset temperature value, the solenoid valve and the water pump are controlled to be opened, and when the water level in the water tank in the steam boiler is greater than or equal to the preset water level value, the water pump and the solenoid valve are controlled to be closed.

[0029] In some embodiments, the conveying mechanism includes a conveyor belt or a screw conveyor.

[0030] In some embodiments, the killing drum is provided with a discharge bin door at the second discharge port, and the discharge bin door includes two baffles symmetrically arranged on both sides of the second discharge port and two electric connecting rods controlled by the controller, one end of each electric connecting rod is hinged to the inner wall of the killing drum, and the other end is hinged to a baffle.

[0031] In some embodiments, the tea leaf withering device further comprises an electronic screen disposed on the outer surface of the chassis, wherein the electronic screen is connected to the controller and is used to display the working status of the tea leaf withering device.

[0032] In some embodiments, the drive device is located outside the chassis.

[0033] Beneficial effects of the embodiments of the present disclosure:

[0034] When the tea-leaf-withering device provided by the embodiment of the present disclosure is used to wither tea leaves, the tea leaves are transported to the inside of the tank body through the feeding device, and the steam boiler is heated. When the water temperature in the steam boiler reaches the evaporation temperature, the steam in the steam boiler is input into the hollow main shaft through the steam pipe, and the steam enters the exhaust branch pipe connected to the hollow main shaft through the hollow main shaft, and then enters the tank body through the exhaust hole on the exhaust branch pipe, and the tea leaves in the tank body are withered. When the tea-leaf-withering device is used to wither tea leaves, the driving device drives the hollow main shaft and the tank body fixedly connected to the hollow main shaft to rotate, and drives the multiple exhaust branch pipes connected thereto to rotate around the axis of the hollow main shaft, so that the steam is fully in contact with the tea leaves in the tank body, and the exhaust branch pipe rotates under the drive of the driving device, avoiding the tea leaves blocking the exhaust holes on the exhaust branch pipe, thereby improving the withering effect and efficiency of the tea leaves.

[0035] Of course, it is not necessary to achieve all the advantages described above at the same time to implement any product or method of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other embodiments can be obtained based on these drawings without paying any creative work.

[0037] Figure 1 Schematic diagram of the internal structure of tea withering equipment according to some embodiments of the present disclosure;

[0038] Figure 2 It is a schematic diagram of the three-dimensional structure of the tea withering equipment according to some embodiments of the present disclosure;

[0039] Figure 3 It is a schematic diagram of the connection between the exhaust branch pipe and the hollow main shaft connection part in some embodiments of the present disclosure;

[0040] Figure 4 It is a schematic diagram of the structure of the cooling device in some embodiments of the present disclosure;

[0041] Figure 5 It is a schematic cross-sectional view of the tea withering equipment according to some embodiments of the present disclosure in a direction perpendicular to the hollow main axis. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present disclosure.

[0043] In order to improve the withering effect and efficiency of tea leaves, the embodiment of the present disclosure provides a tea leaf withering device. The tea leaf withering device provided by the embodiment of the present disclosure will be described in detail below in conjunction with the accompanying drawings.

[0044] refer to Figure 1 and Figure 2 The tea-tea-withering device provided in the embodiment of the present disclosure includes:

[0045] The chassis 1 comprises a first chamber 101 and a second chamber 102 separated by a partition 104, the second chamber 102 is provided with a first discharge port 103 which can be opened and closed at the bottom, and a first exhaust port 106 at the top;

[0046] A hollow main shaft 402 pivotally mounted on the chassis 1 and a driving device 8 for driving the hollow main shaft 402 to rotate;

[0047] The killing drum 4 is located in the second chamber 102, and includes a tank body 401 penetrated by a hollow main shaft 402 and fixedly connected to the hollow main shaft 402, and a plurality of exhaust branch pipes 403 located in the tank body 401 and connected and communicated with the hollow main shaft 402, wherein each exhaust branch pipe 403 has a plurality of exhaust holes 404, and the tank body has an openable and closable feeding port 406, an openable and closable second discharge port 405, and a second exhaust port 5;

[0048] The feeding device 3 includes a feeding hopper 301 disposed on the top of the first chamber 101 and a conveying mechanism 302 connected to the feeding hopper 301 and extending into the second chamber 102;

[0049] The steam boiler 6 is located in the first chamber 101 and is connected to the hollow main shaft 402 through the steam pipe 7;

[0050] When the fixing drum 4 is in a non-fixing state, the feed port 406 is connected to the conveying end of the conveying mechanism 302 , and the second discharge port 405 is opposite to the first discharge port 103 .

[0051] In the embodiments of the present disclosure, Figure 1As shown, the partition 104 is placed in the chassis 1, isolating the chassis 1 into two chambers, wherein the first chamber 101 is mainly used to accommodate the steam boiler 6, and the second chamber 102 is mainly used to accommodate the withering drum 4. The space design in the second chamber 102 is compact, so that the temperature rise speed in the second chamber 102 is accelerated, which is conducive to improving the insulation effect of the withering drum 4 during the withering process. Since the tea leaves need to be withered in the withering drum 4, and the withering drum 4 is placed in the second chamber 102, the first discharge port 103 is set below the second chamber 102, that is, below the withering drum 4. When the second discharge port 405 and the first discharge port 103 are opposite and opened at the same time, the discharge after withering can be carried out.

[0052] In the embodiment of the present disclosure, the tea withering device may further include at least two supporting feet 2, which are fixedly connected to the chassis 1 and used to support the chassis 1. To ensure the balance of the chassis 1, a supporting foot 2 is provided at each end of the chassis 1. In addition, to ensure the stability of the chassis 1, the number of supporting feet 2 may be increased according to actual needs, such as 4, etc., and the embodiment of the present disclosure does not specifically limit this.

[0053] In the disclosed embodiment, the feeding device 3 is used to add unprocessed tea leaves into the withering drum 4 through the conveying mechanism 302. Therefore, when adding tea leaves into the tank body 401, the feeding port 406 on the tank body 401 is opened, and the conveying end of the conveying mechanism 302 is docked with the feeding port 406 to transport the tea leaves from the conveying mechanism 302 to the tank body 401. Figure 1 As shown, the conveying mechanism 302 can be tilted, and the conveying end of the conveying mechanism 302 is lower than the conveying start end, so that the tea leaves to be processed can be moved into the tank body 401 under the action of gravity. The length and tilt angle of the conveying mechanism 302 can be adjusted based on the distance between the feed hopper 301 and the tank body 401.

[0054] In addition, a second discharge port 405 is provided on the tank body 401. After the tea leaves are withered, the second discharge port 405 is opened, so that the tea leaves withered are transported to the first discharge port 103 below the second discharge port 405 through the second discharge port 405. Then, the staff opens the first discharge port 103 to obtain the tea leaves withered. The first discharge port 103 can be opened manually or electrically.

[0055] In the embodiment of the present disclosure, the hollow main shaft 402 passes through the tank body 401 and is fixedly connected to the tank body 401. One end of the hollow main shaft 402 passes through the side of the chassis 1 away from the steam boiler 6, and the other end passes through the mounting plate 105 in the chassis 1 and is pivotally mounted on the chassis 1. Figure 1There are many ways to make the hollow main shaft 402 axially rotatable relative to the chassis 1. For example, a bearing can be installed at the connection between the hollow main shaft 402 and the chassis 1. The hollow main shaft 402 can also be axially rotatable relative to the chassis 1 in other ways. The embodiments of the present disclosure do not specifically limit this.

[0056] In addition, the hollow main shaft 402 is provided with a plurality of exhaust branch pipes 403 connected to the hollow main shaft 402, and a plurality of exhaust holes 404 are provided on the exhaust branch pipes 403. When steam for decolorizing the tea leaves is introduced into the hollow main shaft 402, the steam enters each exhaust branch pipe 403 through the hollow main shaft 402 and then enters the tank body 401 through the exhaust holes 404 on the exhaust branch pipes 403 to decolorize the tea leaves. The number of exhaust branch pipes 403 and the number of exhaust holes 404 on the exhaust branch pipes 403 can be set according to actual conditions, and the embodiments of the present disclosure do not specifically limit this. In order to make the steam distribution in the tank body 401 more uniform, the plurality of exhaust branch pipes 403 can be distributed on the hollow main shaft 402 at the same spacing.

[0057] In the embodiment of the present disclosure, the second steam exhaust port 5 is arranged on the tank body 401, and the first steam exhaust port 106 is arranged on the chassis 1. During the withering process, the first steam exhaust port 106 and the second steam exhaust port 5 are used to discharge part of the steam in the tank body 401 to prevent the air pressure in the tank body 401 from being too high, and also to prevent the staff from being scalded by steam when taking the tea leaves after withering.

[0058] The driving device 8 is used to drive the hollow main shaft 402 and the tank body 401 fixedly connected to the hollow main shaft 402 to rotate axially. The transmission mode of the driving device 8 can be gear transmission, such as Figure 2 As shown, other transmission modes such as chain transmission can also be used, and no specific limitation is made to this.

[0059] When the tea withering device of the disclosed embodiment is used for withering, the tea leaves to be withered are first fed into the tank body 401 from the feed port 406 through the feed device 3, and then the water in the steam boiler 6 is heated, and the drive device 8 is started to drive the hollow main shaft 402 and the tank body 401 to rotate axially. When the water in the steam boiler 6 reaches the evaporation temperature (such as 100°C), the steam in the steam boiler 6 is passed through the steam pipe 7 into the rotating hollow main shaft 402, and then discharged into the tank body 401 through the exhaust hole 404 to wither the tea leaves. After the withering is completed, the second discharge port 405 and the first discharge port 103 are opened to obtain the withered tea leaves.

[0060] In the disclosed embodiment, when the above-mentioned tea withering equipment is steam-withering the tea leaves, the driving device 8 drives the hollow main shaft 402 and the tank body 401 to rotate axially, driving the multiple exhaust branch pipes 403 connected thereto to rotate around the axis of the hollow main shaft 402, so that the steam is in full contact with the tea leaves in the tank body 401, and the exhaust branch pipes 403 rotate axially, thereby preventing the tea leaves from blocking the exhaust holes 404 on the exhaust branch pipes 403, thereby improving the withering effect and efficiency of the tea leaves.

[0061] In some embodiments of the present disclosure, the working state of the tea-tea-withering device includes a feeding state, a withering state, and a discharging state. The tea-tea-withering device also includes a controller for

[0062] In the feeding state, the feeding port 406 is controlled to be opened, and the driving device 8, the first discharge port 103 and the second discharge port 405 are controlled to be closed;

[0063] In the killing state, the driving device 8 is controlled to be turned on, and the feed port 406, the first discharge port 103 and the second discharge port 405 are controlled to be closed;

[0064] In the discharging state, the first discharging port 103 and the second discharging port 405 are controlled to be opened, and the driving device 8 and the feeding port 406 are controlled to be closed.

[0065] In some embodiments of the present disclosure, Figure 3 As shown, each exhaust branch pipe 403 is hinged to the hollow main shaft 402 via a pin 407 , and the axis of the pin 407 is orthogonal to the axis of the hollow main shaft 402 .

[0066] In this embodiment, the exhaust branch pipe 403 is hinged to the hollow main shaft 402, so that the exhaust branch pipe 403 can swing in a direction parallel to the axis of the hollow main shaft 402, thereby increasing the exhaust space of the exhaust hole 404, thereby making the contact between the tea leaves and the steam more complete, thereby improving the withering effect of the tea leaves.

[0067] Part of the exhaust branch pipes 403 among the multiple exhaust branch pipes 403 can be hinged to the hollow main shaft 402, for example, one of two adjacent exhaust branch pipes 403 can be hinged to the hollow main shaft 402, and the other can be fixedly connected to the hollow main shaft 402; or all the exhaust branch pipes can be hinged to the hollow main shaft 402. In order to prevent the exhaust branch pipes 403 from colliding with each other during the swinging process, resulting in damage to the exhaust branch pipes 403, when the exhaust branch pipes 403 are hinged to the hollow main shaft 402, the distance between the two adjacent exhaust branch pipes 403 is correspondingly increased. In addition, in order to prevent steam from leaking from the hinge between the exhaust branch pipe 403 and the hollow main shaft 402, leather products or rubber products are used to wrap the hinge between the hollow main shaft 402 and the exhaust branch pipe 403.

[0068] In some embodiments of the present disclosure, the plurality of exhaust branch pipes 403 are divided into two groups symmetrically distributed relative to the hollow main shaft 402, and the swing angle range of each exhaust branch pipe 403 relative to the pin shaft 407 is 120° to 150°, for example, 135°.

[0069] In the disclosed embodiment, the plurality of exhaust branch pipes 403 are divided into two groups and are symmetrically arranged relative to the hollow main axis 402, so that the distribution of the exhaust branch pipes 403 is more uniform, and the steam is more evenly discharged into the tank body 401, further improving the withering effect of the tea leaves.

[0070] In some embodiments of the present disclosure, the tea withering device further includes a cooling device 9, which includes: a water inlet pipeline 901 for connecting to a water supply device outside the chassis 1, and a first cooling pipeline 902, a second cooling pipeline 903, a plurality of connecting pipelines 904 and a return water pipeline 905, wherein:

[0071] The water inlet pipeline 901 is connected to the first cooling pipeline 902;

[0072] The first cooling pipeline 902 is arranged around the outer side of the tank body 401 at one end close to the steam boiler 6;

[0073] The second cooling pipeline 903 is arranged around the outer side of the end of the tank body 401 away from the steam boiler 6;

[0074] A plurality of connecting pipes 904 are evenly arranged along the circumference of the tank body 401 and connect the first cooling pipe 902 and the second cooling pipe 903;

[0075] The return water pipeline 905 connects the first cooling pipeline 902 and the steam boiler 6 .

[0076] In this embodiment, a plurality of pipelines in the cooling device 9 are distributed around the tank body 401, and are used to cool the tank body 401 after the fixing is completed. When cooling the tank body 401, Figure 4As shown, the cooling water enters the water supply pipeline 901 from the water supply device, then enters the first cooling pipeline 902 connected to the water supply pipeline 901, then enters the second cooling pipeline 903 through multiple connecting pipelines 904, and finally returns to the steam boiler 6 through the return pipeline 905. The cooling device 9 absorbs the heat in the tank body 401 through the cooling water in each pipeline, the temperature in the tank body 401 gradually decreases, and the temperature of the cooling water in each pipeline increases. After the temperature of the tank body 401 drops to a preset temperature, the heated cooling water returns to the steam boiler 6 through the return pipeline 905. Since the cooling water absorbs heat during the cooling process, the cooling water after absorbing heat has a certain temperature. Therefore, in the next tea-fixing process, the steam boiler 6 can use less time to boil the water in the steam boiler 6 to the evaporation temperature, which not only prevents water waste, but also improves the working efficiency of the tea-fixing equipment.

[0077] Among them, multiple connecting pipes 904 are evenly distributed around the tank body 401, which speeds up the cooling of the tank body 401. The number of connecting pipes 904 can be set according to actual conditions, such as 3, 4 or 5, etc., and this embodiment of the disclosure does not specifically limit this.

[0078] In some embodiments of the present disclosure, the tea withering device further includes a water pump 10 provided on the water inlet pipeline 901, and a solenoid valve 11 provided on the water return pipeline 905, wherein the solenoid valve 11 is provided with a temperature sensor for detecting the water temperature in the water return pipeline 905;

[0079] The working state of the tea withering device also includes a cooling state, and the cooling state includes a first preset time period and a second preset time period which are set in sequence;

[0080] The controller is further used to control the water pump 10 to turn on and the solenoid valve 11 to turn off within a first preset time period;

[0081] During the second preset time period, the water pump 10 is controlled to be closed, and when the water temperature in the return pipe 905 is greater than or equal to the preset temperature value, the solenoid valve 11 and the water pump 10 are controlled to be opened, and when the water level in the water tank in the steam boiler 6 is greater than or equal to the preset water level value, the water pump 10 and the solenoid valve 11 are controlled to be closed.

[0082] In this disclosed embodiment, the water pump 10 is used to pump cooling water from the water supply device into the water inlet pipe 901. After the solenoid valve 11 is opened, the water in the return pipe 905 can enter the steam boiler 6, and the temperature sensor provided on the solenoid valve 11 is used to detect the temperature of the cooling water in the return pipe 905. The controller is connected to the water pump 10, the solenoid valve 11 and the temperature sensor in the solenoid valve 11 to control the working state of the water pump 10, the solenoid valve 11 and the temperature sensor. Among them, the working state includes whether the water pump 10, the solenoid valve 11 and the temperature sensor are turned on or off, and the working state includes the water pump 10, the solenoid valve 11 and the opening time and closing time of the solenoid valve 11.

[0083] The cooling state is used to cool the tank body 401 after the fixing state. The first preset time period is used to pump cooling water into each pipeline of the cooling device 9 so that each pipeline is filled with water. The second preset time period is used to stop the water pump 10 after each pipeline is filled with water, so that the water in each pipeline absorbs the heat in the tank body 401. When the water in each pipeline absorbs enough heat, that is, the water temperature in each pipeline (such as the return water pipeline 905) is greater than or equal to the preset temperature value, the solenoid valve 11 is controlled to open, so that the heated cooling water returns to the steam boiler 6, and the water pump 10 is turned on at the same time to continue adding cooling water to each pipeline. Since the water in the steam boiler 6 is consumed during the killing process, the water returned to the steam boiler 6 in the early stage of the second preset time period is less than the water consumed in the killing process. Therefore, in the late stage of the second preset time period, the water pump 10 and the solenoid valve 11 are still kept open, and the water pumped into each pipeline continues to return to the steam boiler 6 through the return pipe 905, and the water is added to the steam boiler 6 while further cooling the tank body 401, until the water level of the water tank in the steam boiler 6 is greater than or equal to the preset water level value, the water pump 10 and the solenoid valve 11 are controlled to be closed, and the cooling state is completed. Among them, the preset temperature value, the first preset time period, the second preset time period and the preset water level value can all be set according to actual conditions, and the embodiments of the present disclosure do not make specific restrictions on this. In addition, the solenoid valve 11 can be closed at the end of the cooling state, and can also be closed before the cooling state of the next working cycle begins, and the embodiments of the present disclosure do not make specific restrictions on this.

[0084] In some embodiments of the present disclosure, the conveying mechanism 302 includes a conveyor belt or a screw conveyor.

[0085] In this embodiment, a conveyor belt or a screw conveyor is provided in the conveying mechanism 302, which moves from the feed hopper 301 to the tank body 401. The tea leaves to be processed are conveyed into the tank body 401 by the conveyor belt or the screw conveyor, which not only increases the tea leaves conveying efficiency, but also prevents the tea leaves from being blocked in the conveying mechanism 302 when they cannot move due to gravity alone.

[0086] In some embodiments of the present disclosure, Figure 5 As shown, the killing drum 4 is provided with a discharge bin door at the second discharge port 405, and the discharge bin door includes two baffles 4051 symmetrically arranged on both sides of the second discharge port 405 and two electric connecting rods 4052 controlled by the controller, one end of each electric connecting rod 4052 is hinged to the inner wall of the killing drum 4, and the other end is hinged to a baffle 4051.

[0087] In this embodiment, since the second discharge port 405 is provided on the tank body 401, in order to facilitate the acquisition of the tea leaves after withering, the second discharge port 405 is provided as an electric mechanism. When the tea leaves are withered, the controller controls the two electric connecting rods 4052 to move away from each other, thereby driving the baffles 4051 hinged thereto to separate from each other, so that the second discharge port 405 on the tank body 401 is opened. Figure 5 As shown, the withered tea leaves fall out of the second discharge port 405 under the action of gravity and land on the first discharge port 103 on the chassis 1. The staff opens the first discharge port 103 to obtain the withered tea leaves.

[0088] In some embodiments of the present disclosure, the tea withering device further includes an electronic screen 12 disposed on the outer surface of the chassis 1, and the electronic screen 12 is connected to the controller for displaying the working status of the tea withering device.

[0089] In this embodiment, the electronic screen 12 is arranged on the outer wall of the chassis 1, and the electronic screen 12 can be used to display various working states of the tea-tea-fixing device, and can also be used to display parameters of electrical components such as the steam boiler 6, such as the temperature or water level of the water in the steam boiler 6, so that the staff can observe the various parameters and working conditions of the electrical components in the tea-tea-fixing device. In addition, the controller is connected to the electrical components and the electronic screen, and the staff can also control the working state of each electrical component in the tea-tea-fixing device through the electronic screen, such as turning the electrical components on or off.

[0090] In some embodiments of the present disclosure, the driving device 8 is located outside the chassis 1, which saves the internal space of the chassis 1, reduces the volume of the chassis 1, makes the space of the second chamber 102 more compact, further accelerates the heating speed in the second chamber 102, and improves the insulation effect of the withering drum 4 during the withering process.

[0091] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0092] The above description is only a preferred embodiment of the present disclosure and is not intended to limit the protection scope of the present disclosure. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure are included in the protection scope of the present disclosure.

Claims

1. A tea leaf fixing device, characterized in that: include: The chassis comprises a first chamber and a second chamber separated by a partition, the second chamber is provided with a first discharge port which can be opened and closed at the bottom, and a first steam exhaust port at the top; A hollow main shaft pivotally mounted on the chassis and a driving device for driving the hollow main shaft to rotate; The killing drum is located in the second chamber, comprising a tank body penetrated by the hollow main shaft and fixedly connected to the hollow main shaft, and a plurality of exhaust branch pipes located in the tank body and connected and communicated with the hollow main shaft, wherein each exhaust branch pipe has a plurality of exhaust holes, and the tank body has an openable and closable feeding port, an openable and closable second discharge port, and a second exhaust port; A feeding device, comprising a feeding hopper disposed on the top of the first chamber and a conveying mechanism connected to the feeding hopper and extending into the second chamber; a steam boiler located in the first chamber and connected to the hollow main shaft through a steam pipe; When the fixing drum is in a non-fixing state, the feed port is butted against the conveying end of the conveying mechanism, and the second discharge port is opposite to the first discharge port; A cooling device, the cooling device comprising: a water inlet pipeline connected to a water supply device outside the chassis, a first cooling pipeline, a second cooling pipeline, a plurality of connecting pipelines and a return water pipeline, wherein: The water inlet pipeline is connected to the first cooling pipeline; The first cooling pipeline is an annular pipeline and is arranged around the outer side of one end of the tank body close to the steam boiler; The second cooling pipeline is an annular pipeline and is arranged around the outer side of the end of the tank body away from the steam boiler; The plurality of connecting pipelines are evenly arranged along the circumference of the tank body and connect the first cooling pipeline and the second cooling pipeline; The return water pipeline is connected to the first cooling pipeline and the steam boiler.

2. The tea leaf fixing device according to claim 1, characterized in that: The working states of the tea-tea-withering device include a feeding state, a withering state and a discharging state. The tea-tea-withering device also includes a controller for In the feeding state, the feeding port is controlled to be opened, and the driving device, the first discharge port and the second discharge port are controlled to be closed; In the finishing state, the driving device is controlled to be turned on, and the feed port, the first discharge port and the second discharge port are controlled to be closed; In the discharging state, the first discharging port and the second discharging port are controlled to be opened, and the driving device and the feeding port are controlled to be closed.

3. The tea leaf fixing device according to claim 1, characterized in that: Each exhaust branch pipe is hinged to the hollow main shaft via a pin, and the axis of the pin is orthogonal to the axis of the hollow main shaft.

4. The tea leaf fixing device according to claim 3, characterized in that: The multiple exhaust branch pipes are divided into two groups symmetrically distributed relative to the hollow main axis, and the swing angle range of each exhaust branch pipe relative to the pin shaft is 120°~150°.

5. The tea leaf fixing device according to claim 2, characterized in that: It also includes a water pump arranged on the water inlet pipeline and a solenoid valve arranged on the water return pipeline, wherein the solenoid valve is provided with a temperature sensor for detecting the water temperature in the water return pipeline; The working state of the tea-withering device further includes a cooling state, and the cooling state includes a first preset time period and a second preset time period which are sequentially set; The controller is further used to control the water pump to turn on and the solenoid valve to turn off within the first preset time period; During the second preset time period, the water pump is controlled to be closed, and when the water temperature in the return water pipeline is greater than or equal to the preset temperature value, the solenoid valve and the water pump are controlled to be opened, and when the water level in the water tank in the steam boiler is greater than or equal to the preset water level value, the water pump and the solenoid valve are controlled to be closed.

6. The tea leaf fixing device according to claim 1, characterized in that: The conveying mechanism includes a conveyor belt or a screw conveyor.

7. The tea leaf fixing device according to claim 2, characterized in that: The killing drum is provided with a discharge bin door at the second discharge port, and the discharge bin door includes two baffles symmetrically arranged on both sides of the second discharge port and two electric connecting rods controlled by the controller, one end of each electric connecting rod is hinged to the inner wall of the killing drum, and the other end is hinged to a baffle.

8. The tea leaf fixing device according to claim 2, characterized in that: It also includes an electronic screen arranged on the outer surface of the chassis, and the electronic screen is connected to the controller and is used to display the working status of the tea withering equipment.

9. The tea leaf fixing device according to claim 1, characterized in that: The driving device is located outside the chassis.

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