A rock tea carbonization device and a carbonization process

Abstract

The application discloses a rock tea carbon baking equipment and a carbon baking process, and relates to the technical field of tea processing. The rock tea carbon baking equipment comprises a base, a baking cage, a cover and an agitating device. The base is internally provided with a cavity, and a plurality of first heat dissipation openings are formed in the top of the base. The baking cage is arranged above the base and detachably connected with the base. The baking cage is internally provided with a containing cavity, the top of the baking cage is provided with a feeding opening, and a plurality of air permeation holes are formed in the baking cage. The cover covers the feeding opening and is detachably connected with the baking cage. The agitating device comprises a driving shaft and a plurality of first agitating pieces. The driving shaft is rotationally connected with the cover, and the first agitating pieces are arranged on the circumferential side of the driving shaft. When the cover is connected with the baking cage, the first agitating pieces are located in the containing cavity. The application can make the carbon baking effect of rock tea more uniform, thereby improving the quality of rock tea after carbon baking.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tea processing, in particular to a rock tea carbon roasting equipment and a carbon roasting process. BACKGROUND

[0002] Carbon roasting is one of the more important links in the traditional processing technology of rock tea. In order to improve the quality of rock tea, the rock tea tea leaves are usually carbon roasted after primary processing.

[0003] The carbon roasting process has the following effects on rock tea: 1. Providing heat energy to improve the activity of the contents in rock tea and accelerate the oxidation-reduction reaction of the contents. 2. Providing carbon elements so that catechins, caffeine and other oxidation processes do not compete for trace elements in tea sugar substances, reducing the consumption of tea polysaccharides and other substances. 3. Promoting the formation of new complexes of theanine, tea polyphenols, theaflavins and caffeine, making the tea soup more thick and fresh, so as to reduce the bitterness of catechins and caffeine. 4. Promoting the drying of tea leaves, so that the moisture content of tea leaves is controlled below 5%. When the moisture content in tea leaves is 3%-5%, the water in tea plays a role in isolating oxygen. Exceeding or being insufficient can only promote oxidation. This is one of the factors that allows qualified rock tea roasted by fire to be stored at room temperature for a long time.

[0004] For the carbon roasting process of rock tea, the traditional method is to use charcoal to roast. Usually, the rock tea to be carbon roasted is placed in a roasting cage with good air permeability, and then the charcoal at the bottom of the roasting cage enters the roasting cage through hot gas to contact the rock tea tea leaves, thereby carbon roasting the rock tea in the roasting cage.

[0005] However, the quality of rock tea obtained by the traditional carbon roasting method is difficult to control. The reason is usually that the rock tea in the roasting cage is not uniformly contacted with the hot gas (uneven heating), resulting in uneven quality of rock tea carbon roasted in the same roasting cage (such as inconsistent tea aroma, insufficient tea aroma in some rock tea, and excessive tea aroma in some rock tea).

[0006] In view of the above situation, there is an urgent need for a rock tea carbon roasting equipment that can more evenly carbon roast rock tea. SUMMARY

[0007] The present application provides a rock tea carbon roasting equipment and a carbon roasting process, which can make the carbon roasting effect of rock tea more uniform, thereby improving the quality of rock tea after carbon roasting.

[0008] In one aspect, the present application provides a rock tea carbon roasting equipment, which adopts the following technical solution:

[0009] The utility model provides a kind of rock tea carbon baking equipment, including base, baking cage, cover and agitating device, the inside of the base has the cavity for charcoal placement, the top of the base is equipped with a plurality of first heat dissipation port, and the first heat dissipation port is communicated with the cavity;The baking cage is arranged above the base, and the baking cage is detachably connected with the base;The inside of the baking cage has the cavity for storing rock tea, the top of the baking cage has feed port, and the bottom and the periphery of the baking cage are equipped with a plurality of air holes, and the feed port and the air hole are communicated with the cavity;The cover is arranged on the top of the baking cage and covers the feed port, and the cover is detachably connected with the baking cage;The agitating device includes drive shaft and a plurality of first stirring pieces, the drive shaft is arranged through the cover and is rotatably connected with the cover, and the first stirring piece is arranged on the periphery of the drive shaft;When the cover is connected with the baking cage, a plurality of first stirring pieces are located in the cavity, and a plurality of first stirring pieces drive rock tea to move in a circle along with the rotation of the drive shaft and turn upward.

[0010] By adopting the above technical scheme, during the process of rock tea carbon baking, the hot gas generated by the heat release of charcoal will pass through the first heat dissipation port, the air holes in the bottom of the baking cage and enter the cavity to contact with rock tea, at this time, controlling the rotation of the drive shaft can make rock tea move in a circle in the cavity with the rotation axis of the drive shaft as the axis, so that rock tea can exchange positions in the horizontal direction in the cavity;At the same time, rock tea in contact with the first stirring piece can be turned upward, so that rock tea can exchange positions in the vertical direction in the cavity;Thus, the effect of carbon baking of rock tea in the cavity is more uniform, and the quality of rock tea after carbon baking can be improved.

[0011] Optionally, the agitating device further includes a control unit for controlling the rotation of the drive shaft, and the control unit is arranged on the cover and connected with the drive shaft.

[0012] By adopting the above technical scheme, the control unit can control the rotation of the drive shaft according to the program, without manual operation, so that the operation difficulty of carbon baking can be reduced, and the efficiency of rock tea carbon baking can be improved.

[0013] Optionally, the agitating device further includes a rotating ring and a plurality of second stirring pieces, the rotating ring is arranged inside the cover and surrounds the drive shaft, the rotating ring is rotatably connected with the cover, the rotating axis of the rotating ring is parallel to the rotating axis of the drive shaft, and the drive shaft drives the rotating ring to rotate in the opposite direction;The second stirring piece is arranged on the rotating ring and located on the side away from the drive shaft of the first stirring piece;When the cover is connected with the baking cage, a plurality of second stirring pieces are located in the cavity, and a plurality of second stirring pieces drive rock tea to move in a circle along with the rotation of the rotating ring.

[0014] By adopting the technical scheme, in the process of rotating the driving shaft to drive the first stirring pieces to stir the rock tea, the rotating ring rotates with the driving shaft to drive the second stirring pieces to stir the rock tea in the opposite direction, so that the frequency of the rock tea exchanging positions in the horizontal direction in the cavity is increased, the effect of the rock tea exchanging positions in the horizontal direction is improved, and the rock tea in the cavity can be further carbonized more uniformly.

[0015] Optionally, a plurality of stirring impellers are further included, the stirring impellers are arranged on the cover and are rotationally connected with the cover, and rotation axes of the stirring impellers are parallel to the rotation axis of the driving shaft; the first stirring pieces and the second stirring pieces have a space for accommodating the stirring impellers, and when the cover is connected with the roasting cage, the stirring impellers are located in the cavity and in the space for accommodating the stirring impellers.

[0016] By adopting the technical scheme, in the process of rotating the driving shaft to drive the first stirring pieces to stir the rock tea, the rotating ring rotates with the driving shaft to drive the second stirring pieces to stir the rock tea in the opposite direction, so that the frequency of the rock tea exchanging positions in the horizontal direction in the cavity is increased, the effect of the rock tea exchanging positions in the horizontal direction is improved, and the rock tea in the cavity can be further carbonized more uniformly.

[0017] Optionally, the top of the base has a heat preservation cover, the heat preservation cover is enclosed to form an installation groove matched with the roasting cage, and the installation groove is communicated with the cavity through the first heat dissipation opening.

[0018] By adopting the technical scheme, the heat preservation cover can conveniently position the roasting cage above the base, and the probability of the roasting cage falling due to external force is reduced; meanwhile, the heat preservation cover can heat the roasting cage, so that hot air entering the cavity can maintain high temperature for a longer time, thereby improving the carbonization effect of the hot air on the rock tea.

[0019] Optionally, the heat preservation cover has an air passage inside, and the air passage is communicated with the cavity; a plurality of second heat dissipation openings are formed in the heat preservation cover, and two ends of each of the second heat dissipation openings are respectively communicated with the air passage and the heat preservation cover.

[0020] A plurality of filter screens are further included, and the filter screens are respectively arranged at the first heat dissipation openings and at the junctions of the cavity and the air passage.

[0021] By adopting the technical scheme, the hot gas generated by the heat release of the charcoal can also enter the cavity through the second heat dissipation openings, so that the hot gas can contact the rock tea at different positions in the cavity at the same time, thereby further making the rock tea in the cavity be evenly carbonized by the charcoal; in addition, the filter screen can filter the hot gas and intercept the charcoal dust and other impurities mixed in the hot gas, thereby reducing the probability of the charcoal dust and other impurities entering the cavity with the hot gas and contacting the rock tea, and further improving the quality of the rock tea after carbonization.

[0022] Optionally, the carbonization cage is flared towards the direction close to the feeding opening, and the carbonization cage is provided with a condensate groove on the cavity wall of the cavity close to the feeding opening, and the top of the condensate groove is communicated with a plurality of air permeable holes located on the carbonization cage close to the feeding opening.

[0023] The carbonization cage is also provided with a plurality of drainage holes, and the two ends of the drainage holes are respectively communicated with the outside space of the carbonization cage and the bottom of the condensate groove.

[0024] By adopting the technical scheme, the water in the rock tea in the cavity evaporates during the carbonization process, and the water vapor formed by the evaporation of the water is discharged through the air permeable holes on the carbonization cage close to the feeding opening. During the process of discharging the water vapor, the condensate groove guides the water vapor to be liquefied on the groove wall, and the water formed after being liquefied is discharged through the drainage hole, thereby reducing the probability of the water vapor flowing back into the cavity after being liquefied and contacting the rock tea, and further improving the quality of the rock tea after carbonization.

[0025] Optionally, the heat preservation cover is also provided with a plurality of water inlet holes, the two ends of the water inlet holes are respectively communicated with the drainage hole and the ventilation cavity, the base is provided with a water storage groove on the circumferential side of the cavity wall at the bottom of the cavity, and the water storage groove is located below the communication position of the cavity and the ventilation cavity.

[0026] By adopting the technical scheme, the water formed by the liquefaction of the water vapor is discharged and then enters the ventilation cavity through the water inlet hole, the water flows through the filter screen along the ventilation cavity, and finally falls into the water storage groove for collection; the water flowing through the filter screen can clean the filter screen, thereby reducing the probability of the filter screen being blocked by the charcoal dust and other impurities; and the water is collected in the water storage groove, thereby reducing the probability of the water flowing out and polluting the surrounding environment.

[0027] Optionally, it further comprises a heat insulation cover, the heat insulation cover is arranged in the cavity, and the inside of the heat insulation cover has a heat gathering space; the base is provided with a charcoal placing groove at the middle position of the cavity wall at the bottom of the cavity, the heat insulation cover is located above the charcoal placing groove, and the heat insulation cover and the cavity wall at the bottom of the cavity have a heat dissipation space therebetween.

[0028] By adopting the above technical scheme, after the charcoal releases heat to generate hot gas, the heat shield can prevent the hot gas from immediately contacting the rock tea at the bottom of the cavity through the first heat dissipation opening, thereby reducing the probability that the rock tea is overheated and the quality is affected. The hot gas will pass through the heat dissipation space from above the water storage tank, and then enter the cavity through the first heat dissipation opening and the plurality of second heat dissipation openings under the guidance of the heat shield. After the hot gas contacts the water in the hot water tank, the content of impurities such as charcoal dust mixed in the hot gas can be further reduced, thereby further reducing the probability that the impurities such as charcoal dust adhere to the rock tea, and further improving the quality of the rock tea after carbon roasting.

[0029] In another aspect, the present application provides a carbon roasting process, which adopts the following technical scheme:

[0030] A carbon roasting process based on the above-mentioned rock tea carbon roasting equipment, the specific steps are as follows:

[0031] Placing the rock tea to be carbon roasted into the cavity of the roasting cage;

[0032] Connecting the cover with the roasting cage;

[0033] Installing the roasting cage above the base;

[0034] Placing the exothermic charcoal into the cavity of the base;

[0035] Controlling the rotation of the drive shaft to drive the plurality of first stirring pieces to stir the rock tea, so that the rock tea is uniformly heated in the cavity.

[0036] In summary, the present application includes at least one of the following beneficial effects:

[0037] 1. The rock tea can be uniformly exchanged in the carbon roasting process, thereby making the carbon roasting effect of the rock tea more uniform, and further improving the quality of the rock tea after carbon roasting;

[0038] 2. The probability of contact between the impurities such as charcoal dust and the rock tea during the carbon roasting process can be reduced, thereby further improving the quality of the rock tea after carbon roasting;

[0039] 3. The probability of backflow of water vapor after liquefaction during the carbon roasting process of the rock tea can be reduced, thereby reducing the influence of the backflow of water on the carbon roasting of the rock tea;

[0040] 4. The water formed after the liquefaction of water vapor can be collected, and the filter screen can be cleaned by using the water, thereby reducing the probability of clogging of the filter screen by impurities such as charcoal dust. BRIEF DESCRIPTION OF DRAWINGS

[0041] Figure 1 is a structural schematic view of a rock tea carbon roasting equipment according to Embodiment 1;

[0042] Figure 2is Figure 1 is a sectional view along the direction of line A-A in the middle;

[0043] Figure 3 is a sectional view of a rock tea carbon baking equipment according to embodiment 2;

[0044] Figure 4 is a sectional view of a rock tea carbon baking equipment according to embodiment 3;

[0045] Figure 5 is a sectional view of a rock tea carbon baking equipment according to embodiment 4;

[0046] Figure 6 is a sectional view of a rock tea carbon baking equipment according to embodiment 5;

[0047] Figure 7 is Figure 6 is an enlarged view of B in the middle.

[0048] BRIEF DESCRIPTION OF DRAWINGS 1, base; 11, cavity; 12, first heat dissipation opening; 13, feeding opening; 14, cover; 15, carbon placing groove; 16, water storage groove; 2, baking cage; 21, containing cavity; 22, feeding opening; 23, condensate groove; 24, drain hole; 3, cover; 31, observation opening; 32, glass sheet; 4, stirring device; 41, driving shaft; 42, first stirring sheet; 43, control unit; 44, rotating ring; 45, second stirring sheet; 46, stirring impeller; 5, heat preservation cover; 51, mounting groove; 52, ventilation cavity; 53, second heat dissipation opening; 54, water inlet hole; 6, filter screen; 7, heat insulation cover; 101, air vent; 102, temperature sensing element; 103, accommodation space; 104, heat dissipation space. DETAILED DESCRIPTION

[0049] The following will be described in detail in combination with the accompanying drawings. Figures 1-7 The present application will be described in further detail.

[0050] Embodiment 1:

[0051] With reference to the drawings Figure 1 and Figure 2 , the present embodiment discloses a rock tea carbon baking equipment, which carbon bakes rock tea by burning charcoal, and comprises a base 1, a baking cage 2, a cover 3 and a stirring device 4. The baking cage 2 is used for storing rock tea to be carbon baked. The base 1 is used for storing burning charcoal and simultaneously for installing and placing the baking cage 2, so as to facilitate the carbon baking of rock tea in the baking cage 2 by the burning charcoal. The cover 3 is used for increasing the sealing property of the baking cage 2, thereby improving the carbon baking effect of rock tea. The stirring device 4 is used for stirring rock tea in the baking cage 2, so as to make the carbon baking effect of rock tea more uniform, thereby improving the quality of carbon baked rock tea.

[0052] The base 1 has a cavity 11 inside for placing charcoal in combustion, and the upper portion of the base 1 is provided with a first heat dissipation opening 12 for dissipating hot gas generated by the heat of the charcoal, and the first heat dissipation opening 12 is communicated with the cavity 11.

[0053] In this embodiment, it is preferred that the base 1 is a circular truncated cone as a whole, and the base 1 is tapered towards the direction close to the first heat dissipation opening 12, so that the base 1 has a heat gathering effect, and can gather the hot gas generated by the heat of the charcoal and make it dissipate through the first heat dissipation opening 12.

[0054] In this embodiment, it is preferred that the base 1 is provided with a feeding opening 13 on one side, and the feeding opening 13 is communicated with the cavity 11, so that the user can place the charcoal into the cavity 11. In other embodiments, the charcoal can also be placed into the cavity 11 through the first heat dissipation opening 12.

[0055] Further, the base 1 is further hinged with a cover 14 on one side for controlling the opening and closing of the feeding opening 13, and the cover 14 can be controlled to cover the feeding opening 13 by rotating relative to the base 1. In this embodiment, since the cover 14 is a common prior art, it will not be described here.

[0056] Further, it is preferred that a plurality of air holes 101 are provided on the periphery of the base 1, so that the cavity 11 is communicated with the space on the periphery of the base 1, promoting air circulation, so that the charcoal in the cavity 11 can be more fully combusted and heated.

[0057] The roasting cage 2 is detachably connected with the base 1, and the roasting cage 2 is located above the base 1 after being connected with the base 1. In this embodiment, it is preferred that the roasting cage 2 is directly placed above the base 1 to achieve detachable connection with the base 1; in other embodiments, the roasting cage 2 can also be connected with the base 1 in a clamping manner.

[0058] The roasting cage 2 has a container cavity 21 inside for storing rock tea to be carbon-roasted, and the top of the roasting cage 2 has a feeding opening 22 for feeding the rock tea into the container cavity 21, and the periphery and the bottom of the roasting cage 2 are also provided with a plurality of air holes 101 communicated with the container cavity 21. After the roasting cage 2 is installed above the base 1, the hot gas generated by the heat of the charcoal in the cavity 11 can enter the container cavity 21 through the first heat dissipation opening 12 and the plurality of air holes 101 on the bottom of the roasting cage 2 in sequence to contact the rock tea in the container cavity 21, and the excess hot gas and the water vapor generated by the heat of the rock tea can be dissipated to the outside through the plurality of air holes 101 on the periphery of the roasting cage 2.

[0059] Further, it is preferred that the roasting cage 2 also has a circular truncated cone structure, and the roasting cage 2 is flared towards the direction close to the feeding opening 22, and the radial dimension of the bottom of the roasting cage 2 is matched with the radial dimension of the top of the base 1; after the roasting cage 2 is installed above the base 1, the axis of the roasting cage 2 coincides with the axis of the base 1, facilitating the installation and balance of the roasting cage 2 above the base 1.

[0060] Correspondingly, the cover 3 is preferably in a whole circular plate structure, the cover 3 is detachably connected with the roasting cage 2, and is installed on the top of the roasting cage 2 for covering the feeding port 22, so that the container cavity 21 has a certain air tightness, thereby improving the carbon roasting effect of the rock tea in the container cavity 21. In the embodiment, the detachable connection between the cover 3 and the roasting cage 2 is preferably achieved by a clamping fit; in other embodiments, the detachable connection between the cover 3 and the roasting cage 2 can also be achieved by a threaded fit of a plurality of bolts.

[0061] Further, the cover 3 is preferably provided with an observation port 31 for a user to observe the carbon roasting condition of the rock tea in the container cavity 21, and a glass sheet 32 is installed on the cover 3 to cover the observation port 31, so that the user can clearly observe the rock tea in the container cavity 21 through the glass sheet 32. In the embodiment, since the observation port 31 and the glass sheet 32 are both common prior art, no further description is given here.

[0062] The stirring device 4 includes a driving shaft 41 and a plurality of first stirring sheets 42. The driving shaft 41 is in a whole cylindrical structure, the driving shaft 41 penetrates the cover 3 and is rotationally connected with the cover 3, and the axis of the driving shaft 41, the rotation axis and the axis of the cover 3 all coincide; the two ends of the driving shaft 41 are respectively located on the two sides of the cover 3, after the cover 3 is installed on the roasting cage 2, one end of the driving shaft 41 is located in the container cavity 21 and close to the cavity wall at the bottom of the container cavity 21, and the other end of the driving shaft 41 is located on the side of the cover 3 away from the container cavity 21, so as to facilitate the user to control the rotation of the driving shaft 41 relative to the cover 3.

[0063] The first stirring sheet 42 is in a whole rectangular sheet structure, and one length side of the first stirring sheet 42 is fixedly connected with the circumferential side of the driving shaft 41. In the embodiment, the stirring device 4 preferably includes four first stirring sheets 42, and the four first stirring sheets 42 are distributed in a circumferential array with the axis of the driving shaft 41 as the axis.

[0064] Further, the first stirring sheet 42 is installed obliquely relative to the axis of the driving shaft 41, and there is a spacing between the first stirring sheet 42 and the circumferential cavity wall of the container cavity 21. When the driving shaft 41 rotates to drive the first stirring sheet 42 to stir the rock tea, the first stirring sheet 42 can drive the rock tea in contact therewith to make a circular motion with the axis of the driving shaft 41 as the axis; when the driving shaft 41 rotates in a certain direction to drive the first stirring sheet 42 to stir the rock tea, the first stirring sheet 42 can also drive the rock tea in contact therewith to be flipped upward; after the rock tea at the bottom of the container cavity 21 is flipped upward, the rock tea located at the circumferential side of the container cavity 21 will slide down along the inclined surface at the circumferential side of the container cavity 21, thereby simultaneously achieving the position exchange between the rock tea at the bottom of the container cavity 21 and the rock tea at the top of the container cavity 21, and the position exchange between the rock tea at the center of the container cavity 21 and the rock tea at the circumferential side of the container cavity 21.

[0065] The implementation principle of the rock tea carbonization equipment embodiment of the present application is as follows:

[0066] During the process of placing the rock tea into the cavity 21 of the roasting cage 2, installing the roasting cage 2 on the base 1, installing the cover 3 on the roasting cage 2, and carbonizing the rock tea with the charcoal in the cavity 11, the user can observe the carbonization of the rock tea in the cavity 21 through the glass sheet 32, and control the rotation of the driving shaft 41 to drive the first stirring pieces 42 to stir the rock tea in the cavity 21, so that the rock tea is uniformly exchanged in the cavity 21, and the heat generated by the charcoal is more uniformly distributed to the rock tea in the cavity 21, thereby improving the quality of the rock tea after carbonization.

[0067] The rock tea carbonization process embodiment of the present application is also disclosed, which is used for carbonizing rock tea and based on the above-mentioned rock tea carbonization equipment. The specific steps are as follows:

[0068] S1, placing the rock tea to be carbonized into the cavity 21 of the roasting cage 2.

[0069] After the cover 3 is removed from the roasting cage 2 together with the stirring device 4, the rock tea to be carbonized is placed into the cavity 21 of the roasting cage 2.

[0070] S2, connecting the cover 3 with the roasting cage 2.

[0071] The cover 3 is installed on the top of the roasting cage 2, and at the same time, the stirring device 4 partially enters the cavity 21 and extends into the rock tea.

[0072] S3, installing the roasting cage 2 above the base 1.

[0073] The roasting cage 2 with the rock tea to be carbonized stored in the inner cavity and the feeding port 22 covered by the cover 3 is moved to the upper side of the base 1, and the roasting cage 2 is installed and positioned with the base 1.

[0074] S4, placing the heat-generating charcoal into the cavity 11 of the base 1.

[0075] The cover body 14 is opened, the heat-generating charcoal is placed into the cavity 11 through the feeding port 13, and the charcoal is located at the center position of the cavity 11, so that the carbonization effect of the charcoal on the rock tea above is more uniform.

[0076] S5, controlling the rotation of the driving shaft 41 to drive the first stirring pieces 42 to stir the rock tea, so that the rock tea is uniformly heated in the cavity 21.

[0077] During the process of carbonizing the rock tea, the transparent glass sheet 32 observes the carbonization of the rock tea in the cavity 21, and controls the rotation of the driving shaft 41 according to the carbonization of the rock tea, so that the rock tea in the cavity 21 is exchanged, and the rock tea in the cavity 21 is more uniformly contacted with the heat generated by the charcoal, thereby making the carbonization effect of the rock tea in the cavity 21 more uniform.

[0078] In other embodiments, the step of S4 can also be located before any one of S1, S2 and S3, and the step of S4 in advance does not affect the effect of the dark roasting of the tea.

[0079] Embodiment 2:

[0080] With reference to Figure 2 and Figure 3 The difference between this embodiment and Embodiment 1 is the stirring device 4.

[0081] With reference to Figure 3 The stirring device 4 further comprises a control unit 43 for controlling the rotation of the driving shaft 41, the control unit 43 is fixedly installed on the side of the cover 3 away from the first stirring blade 42, and the control unit 43 is fixedly connected with the end of the driving shaft 41 away from the first stirring blade 42.

[0082] In this embodiment, the control unit 43 is preferably composed of a servo motor and a computer, the servo motor is controlled by the computer and the output shaft is fixedly connected with the driving shaft 41, and the computer controls the servo motor according to the input program, so that the user does not need to manually rotate the driving shaft 41, which is convenient for the use of the dark roasting equipment of the tea.

[0083] Further, it is preferred that the roasting cage 2 is fixedly installed with a plurality of temperature sensing elements 102 at different positions of the cavity wall of the cavity 21, for detecting the temperature of the tea at different positions in the cavity 21, and the plurality of temperature sensing elements 102 are signal connected with the control unit 43.

[0084] When the temperature sensing element 102 detects that the temperature of the tea around it will be higher than a certain value, the computer will receive the data detected by each temperature sensing element 102, so as to control the servo motor to drive the driving shaft 41 to rotate at a certain speed for a certain time, so as to make the tea in the cavity 21 evenly heated.

[0085] In this embodiment, since the temperature sensing element 102, the servo motor and the computer with the above functions are all common prior art, they will not be described again, and only a brief representation is made in the drawings.

[0086] The implementation principle of the dark roasting equipment of the tea in the embodiment of the application is:

[0087] During the process of dark roasting of the tea, the control unit 43 can timely control the rotation of the driving shaft 41 according to the dark roasting condition of the tea in the cavity 21, drive the plurality of first stirring blades 42 to stir the tea, so that the dark roasting effect of the tea is more uniform, and the quality of the tea after dark roasting is improved.

[0088] The carbon roasting process of the embodiment of the present application is different from the carbon roasting process disclosed in the embodiment 1 in that the step S5 is automatically operated by the control unit 43 without the user operating the stirring device 4 according to the carbon roasting condition of the rock tea in the cavity 21, further facilitating the use of the rock tea carbon roasting equipment.

[0089] Embodiment 3:

[0090] With reference to Figure 2 and Figure 4 , the embodiment is different from the embodiment 1 in that the stirring device 4.

[0091] With reference to Figure 4 , the stirring device 4 further comprises a rotating ring 44 and a plurality of second stirring pieces 45.

[0092] The rotating ring 44 is in the form of a circular ring plate, is installed in the interior of the cover 3, is rotationally connected with the cover 3, and the rotation axis of the rotating ring 44 coincides with the axis of the rotating ring 44 and the axis of the cover 3; the rotating ring 44 surrounds the drive shaft 41, and the rotation of the drive shaft 41 can drive the rotating ring 44 to rotate in the opposite direction synchronously. In the embodiment, the rotation of the drive shaft 41 drives the rotating ring 44 to rotate in the opposite direction synchronously through gear transmission, the gear is installed in the interior of the cover 3 between the rotating ring 44 and the drive shaft 41, is rotationally connected with the cover 3, and the rotation axis of the gear is parallel to the rotation axis of the drive shaft 41; the circumferential side of the drive shaft 41 in the cover 3 has a gear structure meshing with the gear, and the inner side of the rotating ring 44 also has a gear structure meshing with the gear, and the gear meshes with the drive shaft 41 and the rotating ring 44 at the same time, thereby achieving the above effect.

[0093] The second stirring piece 45 is in the form of a trapezoidal plate, the lower side of the second stirring piece 45 is fixedly connected with the rotating ring 44, the plane on which the second stirring piece 45 is located is parallel to the rotation axis of the rotating ring 44, and the plurality of second stirring pieces 45 are respectively arranged in a circumferential array with the rotation axis of the rotating ring 44 as the axis. In the embodiment, the stirring device 4 preferably comprises four second stirring pieces 45.

[0094] After the cover 3 is installed on the roasting cage 2, the four second stirring pieces 45 are also located in the cavity 21, the side of the second stirring piece 45 away from the drive shaft 41 is adapted to the circumferential side of the cavity 21 with a spacing; and there is also a spacing between the side of the second stirring piece 45 close to the drive shaft 41 and the first stirring piece 42 in the rotation process of the first stirring piece 42 and the second stirring piece 45.

[0095] The user controls the rotation of the driving shaft 41, which can drive the four first stirring pieces 42 to make circular motion with the rotation axis of the driving shaft 41 as the axis, and can drive the four second stirring pieces 45 to make synchronous and reverse circular motion with the rotation axis of the driving shaft 41 as the axis, so that the rock tea in the cavity 21 can be more evenly distributed after being stirred by the stirring device 4, and the effect of carbon roasting of the rock tea in the cavity 21 under the action of the stirring device 4 is more uniform.

[0096] The implementation principle of the rock tea carbon roasting equipment in the embodiment of the present application is as follows:

[0097] During the process of rock tea carbon roasting, when the rock tea in the cavity 21 needs to be stirred, the rotation of the driving shaft 41 can drive the first stirring pieces 42 and the second stirring pieces 45 to stir the rock tea at the same time, so that the rock tea in the cavity 21 is more evenly distributed after being stirred, and the effect of carbon roasting of the rock tea in the cavity 21 is more uniform, thereby further improving the quality of the rock tea after carbon roasting.

[0098] The corresponding carbon roasting process of the embodiment of the present application is the same as the carbon roasting process disclosed in Embodiment 1.

[0099] Embodiment 4:

[0100] Referring to Figure 4 and Figure 5 , the difference between the present embodiment and Embodiment 3 is the stirring device 4.

[0101] Referring to Figure 5 , the stirring device 4 further comprises a plurality of stirring impellers 46.

[0102] The stirring impeller 46 is composed of a rod body and a plurality of blades. One end of the rod body in the length direction is rotationally connected with the cover 3, and the rotation axis of the rod body coincides with the axis of the rod body and is parallel to the axis of the cover 3. One side of the blade is fixedly connected with the peripheral side of the rod body, and the plane in which the blade is located is parallel to the axis direction of the rod body. In the present embodiment, the blade is preferably a rectangular plate structure, the length side of the blade is fixedly connected with the rod body, and the plurality of blades are distributed in a circular array with the axis of the rod body as the axis.

[0103] After the cover 3 is installed on the roasting cage 2, the end of the stirring impeller 46 away from the cover 3 is close to the cavity wall of the bottom of the cavity 21. During the process of stirring the rock tea by the first stirring piece 42 and the second stirring piece 45, there is a space 103 between the first stirring piece 42 and the second stirring piece 45, and the stirring impeller 46 is located in the space 103 (i.e., when the first stirring piece 42 and the second stirring piece 45 are rotated, the stirring impeller 46 remains between the first stirring piece 42 and the second stirring piece 45).

[0104] In the embodiment, the stirring device 4 preferably comprises four stirring impellers 46, and the four stirring impellers 46 are distributed in a circumferential array on the cover 3 with the axis of the cover 3 as the axis. During the process that the first stirring blades 42 stir the rock tea and the second stirring blades 45 stir the rock tea in the opposite direction, the movement of the rock tea in the cavity 21 will drive the stirring impellers 46 to rotate relative to the cover 3, so as to guide the rock tea close to the center of the cavity 21 to move and exchange positions with the rock tea close to the edge of the cavity 21, thereby further improving the stirring effect of the stirring device 4.

[0105] The implementation principle of the rock tea carbonization equipment in the embodiment of the present application is as follows:

[0106] During the process of rock tea carbonization, the rock tea in the cavity 21 needs to be stirred, and the rotation of the driving shaft 41 can drive the first stirring blades 42 and the second stirring blades 45 to stir the rock tea at the same time. At this time, the stirring impellers 46 will rotate under the action of the exchange of positions of the rock tea, so as to guide the rock tea close to the center of the cavity 21 to move and exchange positions with the rock tea close to the edge of the cavity 21, thereby further making the rock tea in the cavity 21 be stirred and distributed more uniformly, so as to further make the rock tea in the cavity 21 be carbonized more uniformly, and thereby further improve the quality of the rock tea after carbonization.

[0107] The corresponding carbonization process of the embodiment of the present application is the same as the carbonization process disclosed in Embodiment 1.

[0108] Embodiment 5:

[0109] Referring to Figure 5 and Figure 6 , the difference between the present embodiment and Embodiment 4 is the base 1 and the carbonization cage 2.

[0110] Referring to Figure 6 and Figure 7 , the top of the base 1 has a protective cover with a heat preservation effect, and the heat preservation cover 5 preferably has a whole flared structure, and the heat preservation cover 5 is flared upward along the axis direction of the base 1. In the embodiment, the heat preservation cover 5 is preferably made of aluminum oxide, and in other embodiments, the heat preservation cover 5 can also be made of other heat preservation materials.

[0111] The inside of the heat preservation cover 5 is surrounded to form a mounting groove 51 matched with the carbonization cage 2, and the mounting groove 51 is communicated with the cavity 11 through the first heat dissipation opening 12. The mounting groove 51 facilitates the installation and positioning of the carbonization cage 2 on the base 1, and the relative position of the carbonization cage 2 to the base 1 is fixed after the carbonization cage 2 is installed in the mounting groove 51. After the carbonization cage 2 is installed in the mounting groove 51, the row of air holes 101 close to the top of the carbonization cage 2 are exposed, and the remaining air holes 101 are covered by the heat preservation cover 5.

[0112] The inner part of the heat preservation cover 5 has a ventilation cavity 52 which is open to the cavity 11 at one end of the base 1, and a plurality of second heat dissipation openings 53 are formed on the heat preservation cover 5 and communicated with the mounting groove 51; after the baking cage 2 is mounted in the mounting groove 51, the ventilation cavity 52 can be communicated with the containing cavity 21 through the plurality of second heat dissipation openings 53 and the plurality of air permeable holes 101 on the side of the baking cage 2, so that the hot gas generated by the charcoal can also enter the containing cavity 21 from the ventilation cavity 52 and contact the rock tea close to the side cavity wall in the containing cavity 21, further making the rock tea contact the hot gas more evenly.

[0113] After the charcoal generates hot gas by heat release, the hot gas is easy to mix with a certain amount of carbon dust and other impurities, in order to reduce the carbon dust and other impurities mixed with the hot gas and contacted with the rock tea, a plurality of filter screens 6 for filtering and intercepting carbon dust and other impurities are fixedly mounted on the base 1.

[0114] In the embodiment, two filter screens 6 are fixedly mounted on the base 1, and the shapes of the two filter screens 6 are different. One filter screen 6 is located between the cavity 11 and the mounting groove 51, is matched with the first heat dissipation opening 12 and covers the first heat dissipation opening 12; the other filter screen 6 is located at the communication position between the cavity 11 and the ventilation cavity 52, is matched with the opening of the ventilation cavity 52 and covers the opening. In the embodiment, since the filter screen 6 is a common prior art, it will not be described here.

[0115] Further, the base 1 is provided with a charcoal placing groove 15 on the cavity wall at the bottom of the cavity 11 for placing charcoal, so as to facilitate the user to determine the position of the charcoal placed in the cavity 11, and the charcoal placing groove 15 is centrally located on the cavity wall at the bottom of the cavity 11, so that the charcoal baking effect on the rock tea in the baking cage 2 is more uniform.

[0116] Further, the base 1 is provided with a heat insulation cover 7 fixedly mounted in the cavity 11, and the heat insulation cover 7 is located above the charcoal placing groove 15. In the embodiment, the heat insulation cover 7 is preferably an arc-shaped shell structure, the heat insulation cover 7 is aligned with the charcoal placing groove 15 in the vertical direction, the opening of the heat insulation cover 7 faces the charcoal placing groove 15, and the heat insulation cover 7 covers the charcoal placing groove 15 above. In the embodiment, the heat insulation cover 7 is also preferably made of alumina.

[0117] The heat insulation cover 7 has a heat dissipation space 104 between one end close to the charcoal placing groove 15 and the cavity wall at the bottom of the cavity 11, when the charcoal generates heat in the charcoal placing groove 15, the heat insulation cover 7 has a gathering effect on the hot gas generated by the charcoal, and the heat insulation cover 7 prevents the hot gas from directly rising through the first heat dissipation opening 12 into the containing cavity 21, but guides the hot gas to pass through the heat dissipation space 104 and then pass through the corresponding filter screen 6, and then pass through the corresponding first heat dissipation opening 12 and second heat dissipation opening 53 to enter the containing cavity 21.

[0118] Further, the baking cage 2 is provided with a condensate groove 23 for liquefaction of water vapor near the position of the material inlet 22 on the cavity wall of the cavity 21. The condensate groove 23 is in communication with the cavity 21 and a row of air vents 101 on the end of the baking cage 2 near the material inlet 22. The air vents 101 are in communication with the top of the condensate groove 23.

[0119] During the carbon baking process of the rock tea, water vapor is formed by evaporation of water in the rock tea. The water vapor is discharged through the air vents 101. The water vapor contacts the end surface of the cavity wall or the cover 3 and is likely to be liquefied to form water droplets. The condensate groove 23 can guide the water vapor to be concentrated on the groove wall to be liquefied, thereby reducing the probability of backflow of the water droplets after liquefaction of the water vapor affecting the carbon baking effect of the rock tea.

[0120] Further, a plurality of drainage holes 24 are provided on the position of the baking cage 2 near the material inlet 22. The two ends of the drainage holes 24 are in communication with the bottom of the condensate groove 23 and the outside of the baking cage 2, respectively. The drainage holes 24 are inclined outward and downward, thereby facilitating the discharge of the water droplets.

[0121] The end of the heat preservation cover 5 away from the base 1 is also provided with a plurality of water inlet holes 54. The two ends of the water inlet holes 54 are in communication with the air chamber 52 and the mounting groove 51, respectively. The water inlet holes 54 are located above the plurality of second heat dissipation openings 53.

[0122] In the embodiment, the plurality of drainage holes 24 and the plurality of water inlet holes 54 are preferably one-to-one corresponding. After the baking cage 2 is mounted in the mounting groove 51, the drainage hole 24 is in communication with the corresponding water inlet hole 54. At this time, the water droplets liquefied on the condensate groove 23 can enter the air chamber 52 through the drainage hole 24 and the water inlet hole 54 in sequence. After the water droplets enter the air chamber 52, they slide along the cavity wall of the air chamber 52 away from the second heat dissipation opening 53, pass through the filter screen 6 between the air chamber 52 and the cavity 11, and finally fall to the bottom of the cavity 11. In the embodiment, it is further preferred that the mounting state of the baking cage 2 and the base 1 is fixed, and after the baking cage 2 is mounted, the drainage hole 24 is aligned with the corresponding water inlet hole 54, thereby facilitating the mounting of the baking cage 2.

[0123] Further, the base 1 is also provided with a water storage groove 16 on the cavity wall at the bottom of the cavity 11 for collecting water droplets. The water storage groove 16 is provided on the position of the cavity wall at the bottom of the cavity 11, and the water storage groove 16 is located below the heat insulation cover 7. It is preferred that the water droplets enter the cavity 11, fall to the surface of the heat insulation cover 7, flow down along the surface of the heat insulation cover 7, and finally fall into the water storage groove 16.

[0124] During the carbon baking process of the rock tea, hot gas passes above the water storage groove 16 after passing through the heat dissipation space 104. If water is collected in the water storage groove 16, the contact between the hot gas and the water in the water storage groove 16 can further reduce the amount of impurities such as carbon dust mixed in the hot gas.

[0125] The implementation principle of the rock tea carbon roasting equipment according to an embodiment of the present application is as follows:

[0126] During the rock tea carbon roasting process, the hot gas generated by the heat release of the charcoal will first pass through the heat dissipation space 104 under the guidance of the heat shield 7, then pass through the corresponding filter screen 6 through the corresponding first heat dissipation port 12 or the corresponding second heat dissipation port 53 into the cavity 21 to contact the rock tea, so that the rock tea in the cavity 21 is more evenly carbon roasted.

[0127] At the same time, during the rock tea carbon roasting process, the water vapor formed by the evaporation of the water contained in the rock tea will be discharged through the air hole 101 located at the top of the roasting cage 2, and the water vapor liquefaction mainly occurs in the condensate tank 23. The water droplets formed by the liquefaction will successively pass through the water drainage hole 24 and the water inlet hole 54 into the air cavity 52, then flow down into the cavity 11, and finally collect in the water storage tank 16, reducing the influence of the water vapor liquefaction backflow on the quality of the carbon roasted rock tea.

[0128] The embodiment of the present application also discloses a carbon roasting process, which is different from the carbon roasting process disclosed in the embodiment 1 in the steps S3 and S4.

[0129] When the step S3 is performed, the mounting groove 51 formed by the heat preservation cover 5 can assist the user to install and position the roasting cage 2 above the base 1.

[0130] When the step S4 is performed, the exothermic charcoal needs to be placed in the charcoal groove 15, and at the same time of replacing the charcoal, the water about to overflow in the water storage tank 16 needs to be cleaned.

[0131] The above are the preferred embodiments of the present application, which do not limit the protection scope of the present application, so: any equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. A rock tea carbonization apparatus, characterized by comprising: The utility model provides a charcoal roasting device, including base (1), roasting cage (2), cover (3) and agitating unit (4), the inside of base (1) has the cavity (11) for charcoal to place, the top of base (1) is equipped with a plurality of first heat dissipation mouth (12), and first heat dissipation mouth (12) with the cavity (11) is communicated, roasting cage (2) is set up in the top of base (1), and roasting cage (2) with base (1) is detachably connected, the inside of roasting cage (2) has the cavity (21) for storing rock tea, the top of roasting cage (2) has the feed inlet (22), and the bottom and the circumferential side of roasting cage (2) are equipped with a plurality of air holes (101), and the feed inlet (22) with air holes (101) are communicated with the cavity (21), cover (3) is set up in the top of roasting cage (2) and covers feed inlet (22), cover (3) with roasting cage (2) is detachably connected, agitating unit (4) includes drive shaft (41) and a plurality of first agitating piece (42), drive shaft (41) passes cover (3) and is rotatably connected with cover (3), and first agitating piece (42) is set up in the circumferential side of drive shaft (41), when cover (3) is connected with roasting cage (2), a plurality of first agitating piece (42) is located in the cavity (21), and a plurality of first agitating piece (42) is driven to rotate with drive shaft (41) and drives rock tea to move in a circle and to turn up to the upward; The top of base (1) has heat preservation cover (5), heat preservation cover (5) is enclosed and forms the installation groove (51) that is adapted with roasting cage (2), and the installation groove (51) is communicated with the cavity (11) through first heat dissipation mouth (12); The inside of heat preservation cover (5) has aeration chamber (52), and the aeration chamber (52) is communicated with the cavity (11);Second heat dissipation mouth (53) is opened on heat preservation cover (5), and the two ends of second heat dissipation mouth (53) are communicated with aeration chamber (52) and heat preservation cover (5) respectively; It further includes a plurality of filter screens (6), and a plurality of filter screens (6) are respectively arranged at first heat dissipation mouth (12) and the junction of cavity (11) and aeration chamber (52); The roasting cage (2) is flared towards the direction close to the feed inlet (22), and the roasting cage (2) is provided with a condensate groove (23) on the cavity wall close to the feed inlet (22) in the cavity (21), and the top of the condensate groove (23) is communicated with a plurality of air holes (101) close to the feed inlet (22) on the roasting cage (2); A plurality of drain holes (24) are further provided on the roasting cage (2), and the two ends of the drain holes (24) are communicated with the outside space of the roasting cage (2) and the bottom of the condensate groove (23) respectively. The heat preservation cover (5) is further provided with a plurality of water inlet holes (54), both ends of the water inlet holes (54) are communicated with the water outlet holes (24) and the air cavity (52) respectively, the base (1) is provided with a water storage groove (16) on the side of the cavity wall at the bottom of the cavity (11), and the water storage groove (16) is located below the communication position of the cavity (11) and the air cavity (52). Further comprising a heat insulation cover (7), the heat insulation cover (7) is arranged in the cavity (11), and the inside of the heat insulation cover (7) has a heat gathering space; the base (1) is provided with a charcoal placing groove (15) at the middle position of the cavity wall at the bottom of the cavity (11), the heat insulation cover (7) is located above the charcoal placing groove (15), and the heat insulation cover (7) and the cavity wall at the bottom of the cavity (11) have a heat dissipation space (104).

2. The rock tea carbonization apparatus according to claim 1, wherein The stirring device (4) further comprises a control unit (43) for controlling the rotation of the drive shaft (41), and the control unit (43) is arranged on the cover (3) and connected with the drive shaft (41).

3. The rock tea carbonization apparatus according to claim 1, wherein The stirring device (4) further comprises a rotating ring (44) and a plurality of second stirring pieces (45), the rotating ring (44) is arranged inside the cover (3) and surrounds the drive shaft (41), the rotating ring (44) is rotationally connected with the cover (3), the rotating axis of the rotating ring (44) is parallel to the rotating axis of the drive shaft (41), and the drive shaft (41) drives the rotating ring (44) to rotate in the opposite direction; the second stirring pieces (45) are arranged on the rotating ring (44) and located on the side away from the drive shaft (41) of the first stirring piece (42); when the cover (3) is connected with the roasting cage (2), a plurality of second stirring pieces (45) are located in the cavity (21), and a plurality of second stirring pieces (45) drive the rock tea to move in a circle along with the rotation of the rotating ring (44).

4. The rock tea carbonization apparatus according to claim 3, wherein Further comprising a plurality of stirring impellers (46), the stirring impellers (46) are arranged on the cover (3) and rotationally connected with the cover (3), and the rotating axis of the stirring impellers (46) is parallel to the rotating axis of the drive shaft (41); the first stirring piece (42) and the second stirring piece (45) have a space (103) adapted to the stirring impellers (46), and when the cover (3) is connected with the roasting cage (2), the stirring impellers (46) are located in the cavity (21) and in the space (103).

5. A carbon baking process, characterized by, Based on the rock tea carbonization equipment according to any one of claims 1-4, the specific steps are as follows: Put the rock tea to be carbonized into the cavity (21) of the roasting cage (2); Connect the cover (3) with the roasting cage (2); Install the roasting cage (2) above the base (1); Put the exothermic charcoal into the cavity (11) of the base (1); The driving shaft (41) is controlled to rotate and drive the first stirring pieces (42) to stir the rock tea, so that the rock tea is uniformly heated in the container cavity (21).

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