CN113587626A - Combined drying equipment and combined drying method for black tea - Google Patents
Combined drying equipment and combined drying method for black tea Download PDFInfo
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- CN113587626A CN113587626A CN202110933858.3A CN202110933858A CN113587626A CN 113587626 A CN113587626 A CN 113587626A CN 202110933858 A CN202110933858 A CN 202110933858A CN 113587626 A CN113587626 A CN 113587626A
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- 238000001035 drying Methods 0.000 title claims abstract description 110
- 244000269722 Thea sinensis Species 0.000 title claims abstract description 93
- 235000006468 Thea sinensis Nutrition 0.000 title claims abstract description 33
- 235000020279 black tea Nutrition 0.000 title claims abstract description 33
- 230000005540 biological transmission Effects 0.000 claims abstract description 90
- 239000000463 material Substances 0.000 claims abstract description 60
- 235000013616 tea Nutrition 0.000 claims abstract description 60
- 238000007602 hot air drying Methods 0.000 claims abstract description 34
- 230000001965 increasing effect Effects 0.000 claims abstract description 5
- 238000010438 heat treatment Methods 0.000 claims description 18
- 238000005096 rolling process Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 4
- 239000007779 soft material Substances 0.000 claims description 4
- 239000003205 fragrance Substances 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000007605 air drying Methods 0.000 abstract description 2
- 238000010981 drying operation Methods 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002036 drum drying Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B20/00—Combinations of machines or apparatus covered by two or more of groups F26B9/00 - F26B19/00
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23F—COFFEE; TEA; THEIR SUBSTITUTES; MANUFACTURE, PREPARATION, OR INFUSION THEREOF
- A23F3/00—Tea; Tea substitutes; Preparations thereof
- A23F3/06—Treating tea before extraction; Preparations produced thereby
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B11/00—Machines or apparatus for drying solid materials or objects with movement which is non-progressive
- F26B11/02—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles
- F26B11/04—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis
- F26B11/0445—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis having conductive heating arrangements, e.g. heated drum wall
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B15/00—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form
- F26B15/10—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions
- F26B15/12—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all horizontal or slightly inclined
- F26B15/14—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all horizontal or slightly inclined the objects or batches of materials being carried by trays or racks or receptacles, which may be connected to endless chains or belts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B23/00—Heating arrangements
- F26B23/04—Heating arrangements using electric heating
- F26B23/06—Heating arrangements using electric heating resistance heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/001—Handling, e.g. loading or unloading arrangements
- F26B25/002—Handling, e.g. loading or unloading arrangements for bulk goods
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/04—Agitating, stirring, or scraping devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B2200/00—Drying processes and machines for solid materials characterised by the specific requirements of the drying good
- F26B2200/20—Teas, i.e. drying, conditioning, withering of tea leaves
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Chemical & Material Sciences (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Tea And Coffee (AREA)
Abstract
The invention relates to a combined drying device of black tea and a combined drying method thereof, which comprises a transmission device, wherein a roller drying device, an open type hot air drying device and a drying device are sequentially arranged above the transmission device, the transmission device comprises a transmission frame, transmission rollers are respectively arranged at two ends and the middle part of the transmission frame, a transmission belt is matched on the transmission rollers, transmission motors are respectively connected on the transmission rollers at the two ends in a shaft manner, a material containing frame is arranged on the transmission belt, a control device for controlling the roller drying device, the open type hot air drying device, the drying device and the transmission motors to move is arranged at one side of the transmission frame, the combined drying operation of drying, air drying and drying is carried out on the tea leaves by sequentially arranging the roller drying device, the open type hot air drying device and the drying device on the transmission frame and controlling the transmission belt and the material containing frame to be matched for use through the transmission motors, therefore, the peculiar smell in the drying process of the tea leaves can be removed, the aroma can be increased and purified, and the mellow degree of the black tea can be effectively improved.
Description
Technical Field
The invention relates to the technical field of black tea production, in particular to combined drying equipment and a combined drying method for black tea.
Background
Drying of black tea is one of the important steps in the black tea manufacturing process. Traditional dry tea technique is exactly the hotly fry, so not only waste time and energy and can also reduce the content of the nutrient composition in the black tea, in the prior art, the mode that dry black tea was used commonly generally adopts hot air dryer drying, adopt automatic chain drying-machine and roll fluidized bed drying-machine drying, adopt the roasting-machine to fry futilely in addition, although these drying equipment homoenergetic of several kinds of types is dry, but when adopting hot air dryer drying and adopting automatic chain drying-machine and roll fluidized bed drying-machine drying, because the black tea piles up, lead to the black tea drying incomplete, be located and pile up the unable rapid draing of the inside black tea of material, and lie in outer black tea then can cause the excessive problem of drying after long-time drying, current equipment such as fry futilely, stoving, hot air drying in addition, after drying, can not reach the promotion effect to the performance of tealeaves.
Disclosure of Invention
The invention aims to provide combined drying equipment and a combined drying method for black tea, which have the characteristics of removing peculiar smell in the drying process of tea leaves, increasing aroma, purifying and effectively improving the mellow degree of the black tea in a combined drying mode.
In order to solve the technical problem, the invention is solved by the following technical scheme:
the utility model provides a combination formula drying equipment of black tea, includes transmission, the transmission top is equipped with the cylinder in proper order and fries dry device, open-type hot air drying device and drying device, transmission includes the driving frame, driving frame both ends and middle part all are equipped with the driving roller, and the cooperation is equipped with the drive belt on the driving roller, all has the coupling to have driving motor on the driving roller at both ends, be equipped with flourishing material frame on the drive belt, driving frame one side is equipped with the controlling means who is used for controlling cylinder to fry dry device, open-type hot air drying device, driving motor motion.
Preferably, the roller stir-frying device comprises a support frame arranged above the transmission frame, a roller is rotatably connected onto the support frame, a feed hopper is arranged at one end of the roller, a rolling motor is connected to the other end of the roller in a shaft-to-shaft manner, a heating pipe is arranged on the inner wall of the roller, a heat conduction layer is arranged outside the heating pipe, and a discharge hole is formed in the middle of the outer edge of the roller.
Preferably, the open-type hot air drying device comprises first supporting plates arranged on two sides of the transmission frame, a first lifting plate is arranged on the first supporting plates, a first lifting moving groove is formed in the first lifting plate, a first lifting moving shaft is arranged in the first lifting moving groove, an open-type hot air cavity is formed in the first lifting moving shaft, a first lifting cylinder is arranged on the outer side of the first lifting plate, an air heater is arranged at the output end of the first lifting cylinder, the air heater is connected with the open-type hot air cavity through a hot air pipe, and a first lifting rod connected with the first lifting moving shaft is arranged at the upper end of the air heater.
Preferably, the open hot air cavity comprises at least two layers of cavities arranged up and down, the hot air pipes are arranged on one side of each cavity, the cross sections of the hot air pipes are rectangular, and rectangular grooves convenient for the hot air pipes to be inserted are formed in the upper ends of the material containing frames.
Further preferably, drying device is including locating the second backup pad of driving frame both sides is equipped with the second lifter plate in the second backup pad, seted up second lift shifting groove on the second lifter plate, be equipped with second lift shifting axle in the second lift shifting groove, and the epaxial closed type stoving case that is equipped with is moved in the second lift, and the second lifter plate outside is equipped with second lift cylinder, the output of second lift cylinder be equipped with the second lifter that second lift shifting axle is connected, the closed type stoving case outside is equipped with sealed cylinder, and closed type stoving incasement wall is equipped with sealed deckle board.
Preferably, the control device comprises a control box arranged on the transmission frame, a circuit board is arranged in the control box, control keys used for controlling the roller drying device, the open type hot air drying device, the drying device and the transmission motor and a display screen used for displaying the temperature in the roller drying device, the open type hot air drying device and the drying device are arranged outside the control box, and temperature sensors are arranged in the roller drying device, the open type hot air drying device and the drying device.
Preferably, the bottom end in the material containing frame is provided with a plurality of rotating shafts driven by chains or gears, one of the rotating shafts is connected with a rotating motor in a shaft mode, and the rotating shafts are provided with soft material homogenizing sheets.
A combined drying method of black tea comprises the following process steps:
firstly, putting tea leaves into a roller frying device, controlling the roller frying device through a control device to roll and heat the tea leaves, wherein the heating temperature is 70-80 ℃, and obtaining the tea leaves with high alcohol thickness;
secondly, the control device controls the transmission motor to drive the transmission belt to move, simultaneously, the material containing frame moves to the position below the roller drying device, the dried tea leaves fall into the material containing frame, and then the material containing frame and the dried tea leaves are conveyed to the position below the open type hot air drying device through the transmission belt;
thirdly, the control device controls the open type hot air drying device to press downwards, the whole body covers the material containing frame and the fried tea leaves, hot air is blown to the tea leaves of each layer of the material containing frame through a hot air pipe, a plurality of rotating shafts at the bottom end of the material containing frame are driven to rotate through a rotating motor, the material homogenizing sheet controls each layer of the tea leaves to rotate uniformly, so that each layer of the tea leaves are heated uniformly, the heating temperature is 100-105 ℃, peculiar smell in the tea leaves is removed, aroma is increased and purified, and then the material containing frame and the air-dried tea leaves are conveyed to the lower part of the drying device through a driving belt;
and fourthly, controlling the drying device to press downwards by the control device, coating the material containing frame and the air-dried tea leaves, heating by the closed drying device at the temperature of 65-75 ℃ to ensure that the air-dried tea leaves are fully dried, and raising fragrance again while keeping the mellow thickness of the tea leaves to obtain the dried black tea.
The invention has the beneficial effects that: the invention comprises a transmission device, a roller drying device, an open type hot air drying device and a drying device are sequentially arranged above the transmission device, the transmission device comprises a transmission frame, transmission rollers are respectively arranged at two ends and the middle part of the transmission frame, transmission belts are matched and arranged on the transmission rollers, transmission motors are respectively connected on the transmission rollers at the two ends, a material containing frame is arranged on the transmission belts, and a control device for controlling the roller drying device, the open type hot air drying device, the drying device and the transmission motors to move is arranged at one side of the transmission frame. And effectively improves the mellow degree of the black tea.
Drawings
Fig. 1 is a schematic structural view of the present invention.
FIG. 2 is a schematic view of the drum drying apparatus of the present invention.
Fig. 3 is a schematic view of a material containing frame in the present invention.
Reference numerals
1. A transmission device, 2, a roller frying device, 3, an open type hot air drying device, 4, a drying device, 5, a transmission frame, 6, a transmission belt, 7, a transmission motor, 8, a material containing frame, 21 and a support frame,
22. a roller 23, a feed hopper 24, a rolling motor 25, a heating pipe 26, a heat conducting layer,
27. a discharge port 31, a first supporting plate 32, a first lifting plate 33, a first lifting moving groove 34, a first lifting moving shaft 35, an open type hot air cavity 36, a first lifting cylinder,
37. a hot air blower 38, a first lifting rod 41, a second supporting plate 42, a second lifting plate,
43. a second lifting moving groove 44, a second lifting moving shaft 45, a closed drying box,
46. second lifting cylinder 47, second lifting rod 48, sealing cylinder 49 and sealing frame plate.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
As shown in fig. 1-3, a combined drying device for black tea comprises a transmission device 1, a drum 22 parching device 2, an open type hot air drying device 3 and a drying device 4 are sequentially arranged above the transmission device 1, the transmission device 1 comprises a transmission frame 5, transmission rollers are respectively arranged at two ends and in the middle of the transmission frame 5, a transmission belt 6 is cooperatively arranged on the transmission rollers, the transmission rollers at two ends are respectively connected with a transmission motor 7 through a shaft, a material containing frame 8 is arranged on the transmission belt 6, a control device for controlling the drum 22 parching device 2, the open type hot air drying device 3, the drying device 4 and the transmission motor 7 to move is arranged at one side of the transmission frame 5, the drum 22 parching device 2, the open type hot air drying device 3 and the drying device 4 are sequentially arranged on the transmission frame 5, and the transmission belt 6 and the material containing frame 8 are controlled to be cooperatively used through the transmission motor 7, the combined drying operation of stir-frying, air-drying and drying is carried out on the tea leaves, so that the peculiar smell in the drying process of the tea leaves can be removed, the aroma can be increased and purified, and the mellow degree of the black tea can be effectively improved.
In this embodiment, the drying device 2 of the roller 22 includes a supporting frame 21 disposed above the transmission frame 5, the supporting frame 21 is rotatably connected with a roller 22, one end of the roller 22 is provided with a feed hopper 23, the other end of the roller 22 is connected with a rolling motor 24 in a shaft mode, the inner wall of the roller 22 is provided with a heating pipe 25, a heat conduction layer 26 is arranged outside the heating pipe 25, the middle part of the outer edge of the roller 22 is provided with a discharge port 27, the discharge port 27 is provided with a baffle plate, one end of the baffle plate is controlled by a pushing cylinder electrically connected with a control device, when in use, the rolling motor 24 drives the roller 22 to rotate and the control device controls the heating pipe 25 to heat, after the tea leaves are heated and fried to be dry, the roller 22 stops rotating, the baffle plate of the discharge port 27 is opened to enable the fried tea leaves to fall into the material containing frame 8, then the transmission motor 7 controls the transmission belt 6 to be matched with the material containing frame 8, and the material containing frame 8 filled with the fried tea leaves is moved to the position below the open type hot air drying device 3.
In this embodiment, the open type hot air drying device 3 includes first supporting plates 31 disposed at two sides of the transmission frame 5, a first lifting plate 32 is disposed on the first supporting plate 31, a first lifting moving groove 33 is disposed on the first lifting plate 32, a first lifting moving shaft 34 is disposed in the first lifting moving groove 33, an open type hot air cavity 35 is disposed on the first lifting moving shaft 34, a first lifting cylinder 36 is disposed at an outer side of the first lifting plate 32, a hot air blower 37 is disposed at an output end of the first lifting cylinder 36, the hot air blower 37 is connected to the open type hot air cavity 35 through a hot air pipe, a first lifting rod 38 connected to the first lifting moving shaft 34 is disposed at an upper end of the hot air blower 37, the open type hot air cavity 35 includes at least two layers of cavities disposed up and down, the hot air pipe is disposed at one side of the cavity, the cross section of the hot air pipe is rectangular, a rectangular groove 81 for facilitating insertion of the hot air pipe is disposed at an upper end of the material containing frame 8, when the tea drying device is used, the first lifting moving shaft 34, the open hot air cavity 35 and the hot air blower 37 are driven to integrally move downwards through the first lifting cylinder 36, the hot air pipe is aligned to the rectangular groove 81 of the material containing box, then the hot air blower 37 is started, the open hot air cavity 35 conveys hot air between the material containing frames 8, and the hot air uniformly falls onto the fried tea leaves in the material containing frames 8 to be dried through the hot air. In addition, can place a plurality of material frames 8 superposes of holding, and the hot-blast main of corresponding quantity is connected to air heater 37, and in the rectangle recess 81 of the corresponding workbin of every hot-blast main connection, carry out the drying of multilayer simultaneously to improve hot air drying efficiency.
In this embodiment, the drying device 4 includes a second supporting plate 41 disposed on both sides of the transmission frame 5, a second lifting plate 42 is disposed on the second supporting plate 41, a second lifting moving groove 43 is disposed on the second lifting plate 42, a second lifting moving shaft 44 is disposed in the second lifting moving groove 43, a closed drying box 45 is disposed on the second lifting moving shaft 44, a second lifting cylinder 46 is disposed on an outer side of the second lifting plate 42, a second lifting rod 47 connected to the second lifting moving shaft 44 is disposed at an output end of the second lifting cylinder 46, a sealing cylinder 48 is disposed on an outer side of the closed drying box 45, a sealing frame plate 49 is disposed on an inner wall of the closed drying box 45, the second lifting moving shaft 44 and the closed drying box 45 are driven to move down integrally by the second lifting cylinder 46, so that the closed drying box 45 completely covers the material containing frame 8, and then the sealing frame plate 49 is driven by the sealing cylinder 48 to abut against the closed drying box 45, therefore, the closed drying box 45 and the material containing frame 8 are completely sealed, and the drying effect can be effectively improved.
In this embodiment, the control device includes a control box disposed on the transmission frame 5, a circuit board is disposed in the control box, control keys for controlling the drum 22 drying device 2, the open hot air drying device 3, the drying device 4 and the transmission motor 7, and display screens for displaying the temperatures in the drum 22 drying device 2, the open hot air drying device 3 and the drying device 4 are disposed outside the control box, temperature sensors are disposed in the drum 22 drying device 2, the open hot air drying device 3 and the drying device 4, when the temperature sensors are used, the temperatures in the drum 22, the open hot air cavity 35 and the closed drying box 45 are transmitted to the display screens for displaying, and the temperature is flexibly adjusted according to the displayed temperature, so that the control is convenient and the overall drying quality of the tea leaves is facilitated.
In this embodiment, the inner bottom end of the material containing frame 8 is provided with a plurality of rotating shafts 82 driven by chains or gears, one of the rotating shafts 82 is connected with a rotating motor 83, a plurality of rotating shafts 82 are provided with soft material homogenizing sheets 84, and the plurality of rotating shafts 82 are provided with the soft material homogenizing sheets 84 through the inner bottom end of the material containing frame 8 and the plurality of rotating shafts 82, so that when the tea leaves are heated in the open hot air cavity 35 and the closed drying box 45, the tea leaves can be turned over while being heated, thereby enabling the tea leaves to be dried uniformly and improving the quality of each tea leaf.
A combined drying method of black tea comprises the following process steps:
firstly, putting tea leaves into a roller 22 frying device 2, controlling a rolling motor 24 to drive the roller 22 to rotate through a control device, controlling a heating pipe 25 to roll and heat the tea leaves by the control device, wherein the heating temperature is 70-80 ℃, the roller 22 stops rotating after the tea leaves are heated and fried, and a baffle plate of a discharge port 27 is opened to enable the fried tea leaves to fall into a material containing frame 8, so that the tea leaves with high alcohol thickness are obtained;
secondly, the control device controls the transmission motor 7 to drive the transmission belt 6 to move, simultaneously, the material containing frame 8 moves to the position below the roller 22 stir-drying device 2, the stir-dried tea leaves fall into the material containing frame 8, and then the material containing frame 8 and the stir-dried tea leaves are conveyed to the position below the open type hot air drying device 3 through the transmission belt 6;
thirdly, the control device controls the first lifting cylinder 36 to drive the first lifting moving shaft 34, the open type hot air cavity 35 and the hot air blower 37 to integrally move downwards to enable the hot air pipes to be aligned with the rectangular groove 81 of the material containing box, then the hot air blower 37 is started to convey hot air between the material containing frames 8 to the open type hot air cavity 35, in addition, a plurality of material containing frames 8 can be stacked, the hot air blower 37 is connected with a corresponding number of hot air pipes, each hot air pipe is connected with the corresponding rectangular groove 81 of the material containing box, multi-layer drying is simultaneously carried out, the hot air drying efficiency is improved to integrally cover the material containing frames 8 and the fried tea leaves, hot air is blown to the tea leaves of each layer of material containing frame 8 through the hot air pipes, a plurality of rotating shafts 82 at the bottom end of the material containing frame 8 are driven to rotate through the rotating motor 83, each layer of tea leaves is controlled to uniformly rotate by the uniform material sheets 84, each layer of tea leaves are uniformly heated, the heating temperature is 100-, removing peculiar smell in the tea leaves, enhancing fragrance and purifying, and then conveying the material containing frame 8 and the air-dried tea leaves to the lower part of the drying device 4 through a transmission belt 6;
fourthly, the control device controls a second lifting cylinder 46 to drive a second lifting moving shaft 44 and the closed type drying box 45 to integrally move downwards, the closed type drying box 45 completely covers the material containing frame 8, then a sealing cylinder 48 drives a sealing frame plate 49 to abut against the closed type drying box 45, so that the closed type drying box 45 and the material containing frame 8 are completely sealed, the material containing frame 8 and the air-dried tea leaves are completely coated, then the air-dried tea leaves are heated by the closed type drying device 4 at the heating temperature of 65-75 ℃ to be fully dried, the alcohol thickness of the tea leaves is kept while aroma is extracted again, the dried black tea is obtained, and the enzyme activity can be rapidly passivated by the combined type drying method.
The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.
Claims (8)
1. The combined drying equipment for the black tea is characterized in that: the automatic drying device is characterized by comprising a transmission device, wherein a roller frying device, an open type hot air drying device and a drying device are sequentially arranged above the transmission device, the transmission device comprises a transmission frame, transmission rollers are arranged at two ends and at the middle of the transmission frame, transmission belts are arranged on the transmission rollers in a matching mode, transmission motors are connected to the transmission rollers at two ends in a shaft mode, material containing frames are arranged on the transmission belts, and a control device used for controlling the roller frying device, the open type hot air drying device, the drying device and the transmission motors to move is arranged on one side of the transmission frame.
2. A black tea combined drying apparatus as claimed in claim 1, wherein: the roller stir-frying device comprises a support frame arranged above the transmission frame, a roller is rotatably connected onto the support frame, a feed hopper is arranged at one end of the roller, a rolling motor is connected to the other end of the roller in a shaft coupling mode, a heating pipe is arranged on the inner wall of the roller, a heat conduction layer is arranged outside the heating pipe, and a discharge port is formed in the middle of the outer edge of the roller.
3. A black tea combined drying apparatus as claimed in claim 1, wherein: the open type hot air drying device comprises first supporting plates arranged on two sides of the transmission frame, a first lifting plate is arranged on each first supporting plate, a first lifting moving groove is formed in each first lifting plate, a first lifting moving shaft is arranged in each first lifting moving groove, an open type hot air cavity is formed in each first lifting moving shaft, a first lifting cylinder is arranged on the outer side of each first lifting plate, an air heater is arranged at the output end of each first lifting cylinder, the air heater is connected with the open type hot air cavity through a hot air pipe, and a first lifting rod connected with the first lifting moving shaft is arranged at the upper end of the air heater.
4. A black tea combined drying apparatus according to claim 3, further comprising: the open type hot air cavity comprises at least two layers of cavities which are arranged up and down, the hot air pipes are arranged on one side of each cavity, the sections of the hot air pipes are rectangular, and rectangular grooves which are convenient for the hot air pipes to be inserted are formed in the upper ends of the material containing frames.
5. A black tea combined drying apparatus as claimed in claim 1, wherein: drying device is including locating the second backup pad of driving frame both sides is equipped with the second lifter plate in the second backup pad, seted up second lift shifting groove on the second lifter plate, be equipped with second lift shifting axle in the second lift shifting groove, and the epaxial closed type stoving case that is equipped with is removed in the second lift, and the second lifter plate outside is equipped with second lift cylinder, the output of second lift cylinder be equipped with the second lifter that second lift shifting axle is connected, the closed type stoving case outside is equipped with sealed cylinder, and closed type stoving incasement wall is equipped with sealed deckle board.
6. A black tea combined drying apparatus as claimed in claim 1, wherein: the control device comprises a control box arranged on the transmission frame, a circuit board is arranged in the control box, control keys used for controlling the roller drying device, the open type hot air drying device, the drying device and the transmission motor and display screens used for displaying the temperature in the roller drying device, the open type hot air drying device and the drying device are arranged outside the control box, and temperature sensors are arranged in the roller drying device, the open type hot air drying device and the drying device.
7. A black tea combined drying apparatus as claimed in claim 1, wherein: the bottom end in the material containing frame is provided with a plurality of rotating shafts driven by chains or gears, one of the rotating shafts is connected with a rotating motor in a shaft mode, and the plurality of rotating shafts are provided with soft material homogenizing sheets.
8. A combined drying process of black tea according to claim 1 wherein: the method comprises the following process steps:
firstly, putting tea leaves into a roller frying device, controlling the roller frying device through a control device to roll and heat the tea leaves, wherein the heating temperature is 70-80 ℃, and obtaining the tea leaves with high alcohol thickness;
secondly, the control device controls the transmission motor to drive the transmission belt to move, simultaneously, the material containing frame moves to the position below the roller drying device, the dried tea leaves fall into the material containing frame, and then the material containing frame and the dried tea leaves are conveyed to the position below the open type hot air drying device through the transmission belt;
thirdly, the control device controls the open type hot air drying device to press downwards, the whole body covers the material containing frame and the fried tea leaves, hot air is blown to the tea leaves of each layer of the material containing frame through a hot air pipe, a plurality of rotating shafts at the bottom end of the material containing frame are driven to rotate through a rotating motor, the material homogenizing sheet controls each layer of the tea leaves to rotate uniformly, so that each layer of the tea leaves are heated uniformly, the heating temperature is 100-105 ℃, peculiar smell in the tea leaves is removed, aroma is increased and purified, and then the material containing frame and the air-dried tea leaves are conveyed to the lower part of the drying device through a driving belt;
and fourthly, controlling the drying device to press downwards by the control device, coating the material containing frame and the air-dried tea leaves, heating by the closed drying device at the temperature of 65-75 ℃ to ensure that the air-dried tea leaves are fully dried, and raising fragrance again while keeping the mellow thickness of the tea leaves to obtain the dried black tea.
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CN111167678A (en) * | 2019-12-25 | 2020-05-19 | 扬州工业职业技术学院 | Baking varnish drying device and method for automobile part maintenance |
CN112167380A (en) * | 2020-10-16 | 2021-01-05 | 金寨县益农农业科技开发有限公司 | Baking device for tea processing and using method thereof |
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CN102499295A (en) * | 2011-12-08 | 2012-06-20 | 黄山毛峰茶业集团有限公司 | Organic flat tea (Houkui) and preparation technique thereof |
CN204444014U (en) * | 2014-12-12 | 2015-07-08 | 福州丰蓝春茶业有限公司 | A kind of tea processing machine |
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Application publication date: 20211102 Assignee: Hunan Ziquejie Jingzhu Ecological Park Development Co.,Ltd. Assignor: Xinhua Tianqu Tea Industry Co.,Ltd. Contract record no.: X2024980007368 Denomination of invention: A combined drying equipment for black tea and its combined drying method Granted publication date: 20230523 License type: Common License Record date: 20240618 |