Processing technology of tea aroma-increasing impurity-removing baking machine

Abstract

The invention relates to a processing technology of a tea leaf aroma-enhancing and impurity-removing baking machine, and mainly solves the problems of low tea leaf baking efficiency and poor baking quality in the prior art, and the tea leaf aroma-enhancing and impurity-removing baking machine comprises a baking machine body, the processing technology of the baking machine body comprises the following steps: 1) starting a far infrared quartz heating tube for heating, starting a driving motor to drive a turnover box to rotate, and preheating the turnover box and a turnover cover; (2) tea leaves to be processed are placed in the overturning box, and the bamboo weaving cover is taken away, so that the air holes are opened; (3) the far infrared quartz heating pipe is started again for heating, and the driving motor is started to drive the overturning box to rotate; (4) taking out the tea leaves in the turnover box, packaging the tea leaves into balls, and rolling the tea leaves on a flat plate for 3-6 minutes; (5) putting the tea leaves in the step (4) into the overturning box again, and covering the air holes with bamboo woven covers; and (6) the far infrared quartz heating pipe is started again for heating, the driving motor is started to drive the overturning box to rotate, the rotating speed of the overturning box is 15-30 r / min, and packaging is conducted after the overturning box is taken out.

Description

Technical Field

[0001] The invention relates to a processing technology of a tea aroma-enhancing and impurity-removing roasting machine. Background Art

[0002] Tea leaf roasting is the last step in the tea making process. Its purpose is to evaporate the excess water in the tea leaves, promote the heating and aroma formation of the tea leaves, improve and fix the quality, and facilitate the storage of the tea leaves.

[0003] Traditional tea baking uses charcoal to bake, which removes the green taste of tea and gives the tea a charcoal aroma, which helps improve the taste and mouthfeel of tea. However, it is inefficient, requires high skills from the production staff, and has high production costs. Moreover, when baking tea in a charcoal oven, it is difficult to accurately control the temperature during the baking process, which can easily cause the temperature to be too high, resulting in over-baking of the tea. In addition, since the temperature is difficult to control during the charcoal baking process, the quality of tea produced in different batches will vary greatly.

[0004] Authorization announcement number CN215638577U discloses a tea roasting machine, including an oven, a drying chamber arranged in the oven, and an air supply device for supplying air to the oven, and also includes an air inlet channel for introducing the airflow of the air supply device into the oven, an air supply pipe connected to the air inlet channel, and a heating channel connected to the air supply pipe, the heating channel is provided with a heating device for heating the airflow, and is used to introduce the heated airflow into the drying chamber, the oven is provided with an air outlet, a return air channel is formed between the drying chamber and the air outlet, the airflow in the drying chamber flows out from the air outlet through the return air channel, and the air inlet pipe is arranged in the return air channel. It introduces the airflow of the air supply device into the oven through the air inlet channel, and introduces the airflow into the heating channel through the air supply pipe for heating, the heated airflow enters the drying chamber to roast the tea leaves, and the hot airflow after roasting is discharged from the return air channel and the air outlet, thereby reducing energy consumption and improving the utilization rate of the hot airflow energy, and reducing costs.

[0005] However, when in use, the tea leaves are stacked on a rotating rack in a drying room, and a heated air flow is introduced into the drying room to dry the tea leaves. The rotation of the rotating rack can achieve uniformity of the tea leaves to a certain extent. However, most of the heated air flow blows on the surface of the stacked tea leaves, and the tea leaves in the middle are difficult to contact with the heated air flow, and the formed steam is difficult to evaporate. Manual stirring is required at regular intervals, which not only reduces the efficiency but also causes a relative price difference in the baking quality. Summary of the invention

[0006] Therefore, in view of the above problems, the present invention provides a processing technology of a tea aroma-enhancing and impurity-removing roasting machine, which mainly solves the problems of low efficiency and poor roasting quality of tea in the prior art.

[0007] To achieve the above object, the present invention adopts the following technical solutions:

[0008] A processing technology of a tea aroma-enhancing and impurity-removing roasting machine, comprising a roasting machine body, wherein the roasting machine body comprises a box body, a box cover, a control device, a driving motor, a reducer, a flip box, a flip cover, a connecting device and a heating device;

[0009] The box body is provided with a drying chamber and a first opening connected to the drying chamber, the box cover can be flipped to cover the first opening of the box body, the box cover is provided with air holes, the air hole cover is provided with a bamboo cover, the flip box can be rotated up and down in the drying chamber, the flip box is a rectangular parallelepiped structure, the flip box is provided with a second opening, the flip cover is covered at the second opening through a connecting device, the driving motor is provided on the box body and located outside the drying chamber, the driving motor is connected to the flip box through a reducer, and is used to drive the flip box to rotate;

[0010] The heating device is arranged in the drying chamber and at the lower side of the turning box, and the heating device comprises at least three far-infrared quartz heating tubes, and each of the far-infrared quartz heating tubes is laid side by side on the lower surface of the drying chamber;

[0011] The control device includes a controller, a temperature sensor, a speed sensor, a rotary switch and a heating switch arranged in the drying chamber, wherein the temperature sensor and the speed sensor are electrically connected to the input end of the controller respectively, and the driving motor and the heating device are electrically connected to the output end of the controller via the rotary switch and the heating switch respectively;

[0012] The processing technology of the roasting machine body comprises the following steps:

[0013] 1) Start the far-infrared quartz heating tube for heating and start the driving motor to drive the turning box to rotate, preheat the turning box and the turning cover, and heat the air temperature in the drying room. When the temperature in the drying room is heated to 60-70°C by the temperature sensor, keep the temperature in the drying room constant for 5-8 minutes, and turn off the far-infrared quartz heating tube and the driving motor;

[0014] 2) Open the box body and the flip cover, place the tea leaves to be processed in the flip box, and place the flip cover on the flip box, connect the flip cover to the flip box cover through a connecting device, the ratio of the volume of the tea leaves in the flip box to the volume of the flip box is 2-4:6, then close the box cover, remove the bamboo cover, and open the air holes;

[0015] 3) Start the far-infrared quartz heating tube again, and when the temperature in the drying room is heated to 100-110°C by the temperature sensor, keep the temperature in the drying room constant for 30-40 minutes, and start the driving motor to drive the turning box to rotate, and the speed of the turning box is 25-45 rpm;

[0016] 4) Take out the tea leaves in the flipping box, pack them into balls, and knead them on a flat plate for 3 - 6 minutes.

[0017] 5) Put the tea leaves from step 4) back into the flipping box, cover the flipping lid on the flipping box, then close the box lid, and cover the bamboo lid at the air vent.

[0018] 6) Start the far - infrared quartz heating tube to heat again. When the temperature in the drying chamber is heated to 70 - 80 °C by detecting the temperature with the temperature sensor, keep the temperature in the drying chamber constant for 1 - 2 hours, and start the driving motor to drive the flipping box to rotate. The rotation speed of the flipping box is 15 - 30 revolutions per minute. Take it out for packaging.

[0019] Further, the temperature sensor includes three first temperature sensors respectively arranged on three side surfaces of the box body, one second temperature sensor arranged on the box lid, and one third temperature sensor arranged inside the flipping box. The first temperature sensor, the second temperature sensor, and the third temperature sensor are respectively electrically connected to the input end of the controller.

[0020] Further, the method of detecting the temperature in the drying chamber by the temperature sensor and keeping the temperature in the drying chamber constant in steps 1), 3), and 6) includes the following steps:

[0021] a. Set the constant temperature value A in the drying chamber and the rotation speed C of the flipping box.

[0022] b. Real - time monitor the temperature values B1, B2, B3 through each first temperature sensor, real - time monitor the temperature value B4 through the second temperature sensor, real - time monitor the temperature value B5 through the third temperature sensor, and real - time monitor the rotation speed value R of the flipping box through the rotation speed sensor.

[0023] c. Process the data transmitted in step b by the controller, and calculate the values of D1 and D2 through the formula D2 = ((B1 + B2 + B3 + B4) / 4) / B5.

[0024] d. Judge the values of D1 and D2 obtained in step c by the controller. When B5 < A, and judge D2 = [1, 1.1]. When D2 = 1, continuously heat through the far - infrared quartz heating tube. When D2 = 1.1, stop heating. At the same time, judge D1 = [-1, 1]. When D1 is in the interval [-1, 0] or [0, 1], increase the rotation speed of the flipping box to enhance the air flow in the drying chamber, so that the value of D1 tends to 0. When D1 = 0, the rotation speed of the flipping box remains at the rotation speed C.

[0025] Furthermore, the turnover box includes a metal mesh frame and a bamboo frame fixed in the metal mesh frame.

[0026] Furthermore, the flip cover includes a metal mesh frame cover and a bamboo frame cover fixed on the metal mesh frame cover.

[0027] Furthermore, the connecting device includes two connecting plates, a crossbeam and at least one screw, the two connecting plates are respectively arranged on the two lateral sides of the flip box, the two connecting plates are provided with a slot, the crossbeam is cross-mounted on the two connecting plates, and the lateral ends of the crossbeam are respectively clamped in the slot, the crossbeam is provided with a threaded hole, and each screw is threadedly connected to the threaded hole, and the free end of the screw is abutted against the flip cover to realize the covering connection between the flip box and the flip cover.

[0028] By adopting the above-mentioned technical scheme, the beneficial effects of the present invention are as follows: the processing technology of the tea aroma-enhancing and impurity-removing roasting machine places the tea leaves in a turning box, and sets the turning cover on the turning box, connects the turning cover to the turning box cover through a connecting device to prevent the tea leaves from leaking out during the rotation of the turning box, and then closes the box cover, controls the driving motor to drive the turning box to rotate and controls the far-infrared quartz heating tube on the heating device through a control device, and because the turning box is a rectangular parallelepiped structure, during the turning of the turning box, the tea leaves inside can turn and roll, and the distance from the far-infrared quartz heating tube can change, and the flow of air in the drying chamber driven by the turning process can make the tea leaves fully contact with the heated air flow, accelerate the drying speed, and thus improve the drying efficiency, and the bamboo frame, bamboo frame cover and bamboo cover are environmentally friendly and hygienic, and can fully enhance the aroma, sterilize and remove impurities, ensure the fragrance of the tea leaves, and improve the baking quality of the tea leaves. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a front view structural schematic diagram of an embodiment of the present invention when the box cover is opened;

[0030] Figure 2 is a rear perspective view of the case cover in a closed state in an embodiment of the present invention;

[0031] Figure 3 is a top perspective view of the box cover in a closed state in an embodiment of the present invention;

[0032] Figure 4 It is a right perspective view of the case cover in a closed state in an embodiment of the present invention;

[0033] Figure 5 It is a schematic diagram of the three-dimensional structure of the flip box and the flip cover in an embodiment of the present invention;

[0034] Figure 6 It is a circuit module diagram of an embodiment of the present invention. DETAILED DESCRIPTION

[0035] The present invention will now be further described with reference to the accompanying drawings and specific implementation methods.

[0036] The embodiments of the present invention are:

[0037] It should be noted that the equipment temperature of traditional tea roasting machines is above 125°C, while the temperature used by this equipment needs to be below 125°C. In order to distinguish it from traditional equipment, it is named a tea aroma-enhancing and impurity-removing roasting machine.

[0038] refer to Figures 1 to 6 As shown, a tea aroma and impurity removal roasting machine includes a roasting machine body, the roasting machine body includes a box body 1, a box cover 2, a control device 3, a drive motor 4, a reducer (not shown in the figure), a flip box 5, a flip cover 6, a connecting device 7 and a heating device 8, the box body 1 and the box cover 2 include a galvanized frame, a stainless steel sheet laid on the galvanized frame and asbestos sandwiched between the stainless steel sheets, which are used to improve the strength of the box body 1 and the box cover 2 and play a role in heat preservation, the length of the box body 1 is 1.34 meters, the width of the box body 1 is 0.95 meters, and the height of the box body 1 is 1 meter. The box body 1 is provided with a drying chamber 11 and a first opening 12 connected to the drying chamber 11, the box cover 2 can be flipped to cover the first opening 12 of the box body 1, the box cover 2 is provided with an air vent 9, the diameter of the air vent 9 is 0.4 meters, the air vent 9 is covered with a bamboo cover (not shown in the figure), and the box cover 2 is provided with a pull handle 1 0, the flip box 5 can be rotated up and down in the drying chamber 11, the flip box 5 is a rectangular structure, the length of the flip box 5 is 1.26 meters, the width of the flip box 5 is 0.77 meters, and the height of the flip box 5 is 0.2 meters. The flip box 5 has a second opening 13, and the flip cover 6 is covered at the second opening 13 through a connecting device 7. The drive motor 4 is provided on the box body 1 and is located outside the drying chamber 11. The drive motor 4 is connected to the flip box 5 through a reducer to drive the flip box 5 to rotate. The heating device 8 is provided in the drying chamber 11 and is located at the lower side of the flip box 5. The drive motor 4 and the heating device 8 are electrically connected to the control device 3 respectively. The heating device 8 includes at least three far-infrared quartz heating tubes 81, preferably seven, and each of the far-infrared quartz heating tubes 81 is laid side by side on the lower surface of the drying chamber 11, and the distance from the lower surface of the drying chamber 11 is 10 cm.

[0039] Furthermore, the flip box 5 includes a metal mesh frame 51 and a bamboo frame 52 fixedly arranged in the metal mesh frame 51 , and the flip cover 6 includes a metal mesh frame cover 61 and a bamboo frame cover 62 fixedly arranged on the metal mesh frame cover 61 .

[0040] Furthermore, the control device 3 includes a controller 31, a temperature sensor, a speed sensor 33, a rotary switch 34 and a heating switch 35 arranged in the drying chamber 11, the temperature sensor includes three first temperature sensors 36 respectively arranged on the three sides of the box body 1, a second temperature sensor 37 arranged on the box cover 2 and a third temperature sensor 38 arranged in the turning box 5, the first temperature sensor 36, the second temperature sensor 37, the third temperature sensor 38 and the speed sensor 33 are respectively electrically connected to the input end of the controller 31, the driving motor 4 and the heating device 8 are respectively electrically connected to the output end of the controller 31 through the rotary switch 34 and the heating switch 35, the controller 31 is a programmable PLC controller sold on the market, and when in use, the rotation speed, heating temperature and heating time of different varieties of tea in the baking process are pre-input, thereby realizing automatic control of baking, further improving baking efficiency and baking quality.

[0041] Specifically, the processing technology of the roasting machine body includes the following steps:

[0042] 1) Start the far-infrared quartz heating tube 81 for heating and start the driving motor 4 to drive the turning box 5 to rotate, preheat the turning box 5 and the turning cover 6, and heat the air temperature in the drying chamber 11. When the temperature in the drying chamber 11 is heated to 60-70° C. by the temperature sensor, keep the temperature in the drying chamber 11 constant for 5-8 minutes, and turn off the far-infrared quartz heating tube 81 and the driving motor 4;

[0043] 2) Open the box body 1 and the flip cover 6, place the tea leaves to be processed in the flip box 5, and cover the flip cover 6 on the flip box 5, and connect the flip cover 6 to the flip box 5 through the connecting device 7, the ratio of the volume of the tea leaves in the flip box 5 to the volume of the flip box 5 is 2-4:6, then close the box cover 2, remove the bamboo cover, and open the air vents 9;

[0044] 3) Start the far-infrared quartz heating tube 81 again for heating. When the temperature in the drying chamber 11 is heated to 100-110° C. by the temperature sensor, keep the temperature in the drying chamber 11 constant for 30-40 minutes, and start the driving motor 4 to drive the turning box 5 to rotate. The speed of the turning box 5 is 25-45 rpm;

[0045] 4) Take out the tea leaves in the turning box 5, pack them into balls, and knead them on a flat plate for 3 to 6 minutes;

[0046] 5) Put the tea leaves from step 4) into the reversible box 5 again, and cover the reversible cover 6 on the reversible box 5, then close the box cover 2, and cover the bamboo cover on the air holes 9;

[0047] 6) Restart the far-infrared quartz heating tube 81 for heating. When the temperature in the drying chamber 11 is detected by the temperature sensor and heated to 70 - 80 °C, keep the temperature in the drying chamber 11 constant for 1 - 2 h, and start the drive motor 4 to drive the flipping box 5 to rotate. The rotation speed of the flipping box 5 is 15 - 30 revolutions per minute. After taking it out, it is packaged.

[0048] Through the above processing technology, the tea is fully aromatized, sterilized to remove miscellaneous flavors, ensuring the fragrance of the tea and improving the baking quality of the tea.

[0049] Further, the method of detecting the temperature in the drying chamber 11 by the temperature sensor and heating to keep the temperature in the drying chamber 11 constant in the above steps 1), 3), and 6) includes the following steps:

[0050] a. Set the constant temperature value A in the drying chamber 11 and the rotation speed C of the flipping box 5;

[0051] b. Real-time monitor the temperature values B1, B2, B3 through each first temperature sensor 36, real-time monitor the temperature value B4 through the second temperature sensor 37, real-time monitor the temperature value B5 through the third temperature sensor 38, and real-time monitor the rotation speed value R of the flipping box 5 through the rotation speed sensor 33;

[0052] c. Process the transmitted data in step b by the controller 31, and calculate the values of D1 and D2 through the formula D2 = ((B1 + B2 + B3 + B4) / 4) / B5;

[0053] d. Judge the values of D1 and D2 obtained in step c by the controller 31. When B5 < A and it is judged that D2 = [1, 1.1], when D2 = 1, continuously heat through the far-infrared quartz heating tube 81. When D2 = 1.1, stop heating. At the same time, judge that D1 = [-1, 1]. When D1 is in the interval [-1, 0] or [0, 1], increase the rotation speed of the flipping box 5 to increase the air flow in the drying chamber 11, so that the value of D1 tends to 0. When D1 = 0, the rotation speed of the flipping box 5 remains at the rotation speed C.

[0054] Through the above heating method, the temperature in the drying chamber 11 is made uniform, improving the quality of tea processing, and the temperature in the drying chamber 11 is increased rapidly, improving the processing efficiency.

[0055] During use, the tea leaves are placed in the turning box 5, and the turning cover 6 is placed on the turning box 5. The turning cover 6 is connected to the turning box 5 by the connecting device 7 to prevent the tea leaves from leaking out during the rotation of the turning box 5. Then the box cover 2 is closed, and the driving motor 4 is controlled by the control device 3 to drive the turning box 5 to rotate and control the far-infrared quartz heating tube 81 on the heating device 8. Since the turning box 5 is a rectangular parallelepiped structure, the tea leaves inside can be turned and rolled during the turning of the turning box 5, and the distance from the far-infrared quartz heating tube 81 changes. In addition, the flow of air in the drying chamber 11 driven by the turning process can make the tea leaves fully contact with the heated air flow, accelerate the drying speed, and thus improve the drying efficiency. At the same time, the bamboo frame 52, the bamboo frame cover 62 and the bamboo cover are arranged, and are combined with the far-infrared quartz heating tube 81, which is environmentally friendly and hygienic, and can decompose the macromolecules in the tea leaves into small molecules, fully enhance the fragrance, sterilize and remove the impurities, ensure the fragrance of the tea leaves, and improve the baking quality of the tea leaves.

[0056] When the lock is in the locked state, the locking nut 74 is fixed on the locking nut 76, and the locking nut 76 is fixed on the locking nut 76 to lock the locking nut 76. When the lock is in the locked state, the locking nut 74 is fixed on the locking nut 76.

[0057] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0058] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0060] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, it should be understood by those skilled in the art that various changes may be made to the present invention in form and details without departing from the spirit and scope of the present invention as defined by the appended claims, all of which are within the scope of protection of the present invention.

Claims

1. A processing technology of a tea aroma-enhancing and impurity-removing roasting machine, characterized in that: The invention comprises a baking machine body, wherein the baking machine body comprises a box body, a box cover, a control device, a driving motor, a reducer, a flip box, a flip cover, a connecting device and a heating device; The box body is provided with a drying chamber and a first opening connected to the drying chamber, the box cover can be flipped to cover the first opening of the box body, the box cover is provided with air holes, the air hole cover is provided with a bamboo cover, the flip box can be rotated up and down in the drying chamber, the flip box is a rectangular parallelepiped structure, the flip box is provided with a second opening, the flip cover is covered at the second opening through a connecting device, the driving motor is provided on the box body and located outside the drying chamber, the driving motor is connected to the flip box through a reducer, and is used to drive the flip box to rotate; The heating device is arranged in the drying chamber and at the lower side of the turning box, and the heating device comprises at least three far-infrared quartz heating tubes, and each of the far-infrared quartz heating tubes is laid side by side on the lower surface of the drying chamber; The control device includes a controller, a temperature sensor, a speed sensor, a rotary switch and a heating switch arranged in the drying chamber, wherein the temperature sensor and the speed sensor are electrically connected to the input end of the controller respectively, and the driving motor and the heating device are electrically connected to the output end of the controller via the rotary switch and the heating switch respectively; The processing technology of the roasting machine body comprises the following steps: 1) Start the far-infrared quartz heating tube for heating and start the driving motor to drive the turning box to rotate, preheat the turning box and the turning cover, and heat the air temperature in the drying room. When the temperature in the drying room is heated to 60-70°C by the temperature sensor, keep the temperature in the drying room constant for 5-8 minutes, and turn off the far-infrared quartz heating tube and the driving motor; 2) Open the box body and the flip cover, place the tea leaves to be processed in the flip box, and place the flip cover on the flip box, connect the flip cover to the flip box cover through a connecting device, the ratio of the volume of the tea leaves in the flip box to the volume of the flip box is 2-4:6, then close the box cover, remove the bamboo cover, and open the air holes; 3) Start the far-infrared quartz heating tube again, and when the temperature in the drying room is heated to 100-110°C by the temperature sensor, keep the temperature in the drying room constant for 30-40 minutes, and start the driving motor to drive the turning box to rotate, and the speed of the turning box is 25-45 rpm; 4) Take out the tea leaves from the turning box, pack them into balls, and knead them on a flat plate for 3 to 6 minutes; 5) Put the tea leaves from step 4) into the flip box again, and put the flip cover on the flip box, then close the box cover, and put the bamboo cover on the air holes; 6) Start the far-infrared quartz heating tube again, and when the temperature in the drying room is heated to 70-80°C by the temperature sensor, keep the temperature in the drying room constant for 1-2 hours, and start the drive motor to drive the turning box to rotate at a speed of 15-30 rpm, and take out and package.

2. The processing technology of the tea aroma-enhancing and impurity-removing roasting machine according to claim 1 is characterized in that: The temperature sensors include three first temperature sensors respectively disposed on three side surfaces of the box body, one second temperature sensor disposed on the box cover, and one third temperature sensor disposed inside the turnover box. The first temperature sensor, the second temperature sensor, and the third temperature sensor are respectively electrically connected to the input end of the controller.

3. The processing technology of the tea aroma-enhancing and impurity-removing roasting machine according to claim 2 is characterized in that: The method for detecting the temperature in the drying chamber by the temperature sensor and heating and maintaining the temperature in the drying chamber constant in the above steps 1), 3), and 6) includes the following steps: a. Set the constant temperature value A in the drying chamber and the rotation speed C of the turnover box; b. Real-time monitor the temperature values B1, B2, and B3 through each first temperature sensor, real-time monitor the temperature value B4 through the second temperature sensor, real-time monitor the temperature value B5 through the third temperature sensor, and real-time monitor the rotation speed value R of the turnover box through the rotation speed sensor; c. The controller processes the data transmitted in step b and uses the formula 3 +(B2-B5) 3 +(B3-B5) 3 +(B4-B5) 3 ) / 4), D2=((B1+B2+B3+B4) / 4) / B5, calculate the values ​​of D1 and D2; d. The controller judges the values of D1 and D2 obtained in step c. When B5 < A and it is judged that D2 = [1, 1.1], when D2 = 1, continuously heat through the far-infrared quartz heating tube, and when D2 = 1.1, stop heating. At the same time, judge that D1 = [-1, 1]. When D1 is in the interval [-1, 0] or [0, 1], increase the rotation speed of the turnover box to improve the air flow in the drying chamber, so that the value of D1 tends to 0. When D1 = 0, the rotation speed of the turnover box remains at the rotation speed C.

4. The processing technology of the tea aroma-enhancing and impurity-removing roasting machine according to claim 1 is characterized in that: The turnover box includes a metal mesh frame and a bamboo woven frame fixedly arranged inside the metal mesh frame.

5. The processing technology of the tea aroma-enhancing and impurity-removing roasting machine according to claim 1 is characterized in that: The turnover cover includes a metal mesh frame cover and a bamboo woven frame cover fixedly arranged on the metal mesh frame cover.

6. The processing technology of the tea aroma-enhancing and impurity-removing roasting machine according to any one of claims 1 to 5, characterized in that: The connecting device includes two connecting plates, a cross beam, and at least one screw rod. The two connecting plates are respectively arranged on the two transverse sides of the turnover box. Card slots are provided on both connecting plates. The cross beam is horizontally arranged on the two connecting plates, and the two transverse ends of the cross beam are respectively clamped in the card slots. Threaded holes are provided on the cross beam. Each screw rod is threadedly connected to the threaded hole. The free end of the screw rod abuts against the turnover cover to realize the covering connection between the turnover box and the turnover cover.

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