CN111879100B - Drying method of efficient tea drying device - Google Patents

Drying method of efficient tea drying device Download PDF

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Publication number
CN111879100B
CN111879100B CN202010701902.3A CN202010701902A CN111879100B CN 111879100 B CN111879100 B CN 111879100B CN 202010701902 A CN202010701902 A CN 202010701902A CN 111879100 B CN111879100 B CN 111879100B
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branch pipe
hot air
pipe
inner box
outer box
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CN111879100A (en
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万在培
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Xuan'en County Yaopu Agricultural Development Co.,Ltd.
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Yuqing County Yulong Tea Co ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
    • F26B17/10—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by fluid currents, e.g. issuing from a nozzle, e.g. pneumatic, flash, vortex or entrainment dryers
    • F26B17/106—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by fluid currents, e.g. issuing from a nozzle, e.g. pneumatic, flash, vortex or entrainment dryers the drying enclosure, e.g. its axis, being substantially straight and horizontal, e.g. pneumatic drum dryers; the drying enclosure consisting of multiple substantially straight and horizontal stretches
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
    • F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
    • F16F15/067—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs using only wound springs
    • 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
    • F26B21/06—Controlling, e.g. regulating, parameters of gas supply
    • F26B21/12—Velocity of flow; Quantity of flow, e.g. by varying fan speed, by modifying cross flow area
    • 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
    • F26B25/06—Chambers, containers, or receptacles
    • F26B25/08—Parts thereof
    • F26B25/10—Floors, roofs, or bottoms; False bottoms
    • 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
    • F26B25/06—Chambers, containers, or receptacles
    • F26B25/08—Parts thereof
    • F26B25/12—Walls or sides; Doors

Abstract

The invention provides a high-efficiency tea leaf drying device which comprises an outer box, an inner box, a centrifugal fan, a hot air pipe, a flow dividing pipe, a first branch pipe, a second branch pipe and a third branch pipe, wherein the first branch pipe is connected with the first branch pipe; a top cover is arranged at the top of the outer box, the middle part of the top cover is connected with an air outlet pipe, and a damping spring is arranged on the inner wall of the outer box; the top of the inner box is provided with a hollow box cover, and the side wall and the bottom of the inner box are provided with a plurality of ventilation holes; the centrifugal fan is arranged outside the outer box and is communicated with the hot air device; the hot air pipe and the shunt pipe are both arranged at the bottom of the outer box; one end of the hot air pipe is communicated with the air outlet of the centrifugal fan, and the other end of the hot air pipe is communicated with the flow dividing pipe; the lower ends of the first branch pipe, the second branch pipe and the third branch pipe are sequentially communicated with the flow dividing pipe, the upper ends of the first branch pipe and the second branch pipe transversely extend into the outer box respectively, and the upper ends of the second branch pipe vertically extend into the outer box; a first gate valve is arranged on the first branch pipe; and a second gate valve is arranged on the third branch pipe. According to the tea leaf drying machine, the movement of tea leaves in the inner box is realized by controlling the air volume of the left branch pipe and the right branch pipe, so that the drying speed is accelerated, and the drying efficiency is improved.

Description

Drying method of efficient tea drying device
Technical Field
The invention belongs to the technical field of tea processing, and particularly relates to a drying method of a high-efficiency tea drying device.
Background
Drying and aroma raising are important operation procedures in green tea production, and are generally finished in a tea dryer, and the tea is dried by hot air. However, in the existing drying machine, since the tea leaves are stacked in the tea leaf drying machine for drying, the tea leaves are easily heated unevenly, and further, the drying time is prolonged, and the drying efficiency is low.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide a drying method for a tea leaf high-efficiency drying device with high drying speed and high drying efficiency.
The specific technical scheme is as follows:
a drying method of a tea high-efficiency drying device comprises an outer box, an inner box, a centrifugal fan, a hot air pipe, a flow dividing pipe, a first branch pipe, a second branch pipe and a third branch pipe; the outer box is a hollow box body with an opening at the top, a top cover is detachably arranged at the top of the outer box, the middle part of the top cover is in threaded connection with an air outlet pipe extending into the outer box, and a plurality of damping springs are uniformly arranged on the inner wall of the outer box; the inner box is a box body arranged in the outer box, the top of the inner box is provided with an opening and is detachably provided with a hollowed box cover, the side wall and the bottom of the inner box are provided with a plurality of ventilation holes with the calibers smaller than the tea leaves, and two sides of the bottom of the inner box are also provided with rollers; the centrifugal fan is arranged outside the outer box, and an air inlet of the centrifugal fan is communicated with the hot air device; the hot air pipe and the shunt pipe are both arranged at the bottom of the outer box; one end of the hot air pipe is communicated with the air outlet of the centrifugal fan, and the other end of the hot air pipe is communicated with the flow dividing pipe; the lower ends of the first branch pipe, the second branch pipe and the third branch pipe are sequentially communicated with the flow dividing pipe, the first branch pipe and the third branch pipe are the same in caliber and length, the upper end of the first branch pipe transversely penetrates through the left side wall of the outer box and then extends into the outer box and is opposite to the left side wall of the inner box, the upper end of the second branch pipe vertically penetrates through the bottom of the outer box and then extends into the outer box and is opposite to the bottom of the inner box, and the upper end of the third branch pipe transversely penetrates through the right side wall of the outer box and then extends into the outer box and is opposite to the right side wall of the inner box; a first gate valve is arranged on the first branch pipe; and a second gate valve is arranged on the third branch pipe.
Further, the bottom of the outer box is supported by a plurality of support columns.
Further, the top cover is detachably connected to the top of the outer box through bolts or threads; the box cover is detachably connected to the top of the inner box through bolts or threads.
Furthermore, the hot air device is a hot blast stove or an electric heating pipe arranged at an air inlet of the centrifugal fan.
Furthermore, the first gate valve and the second gate valve are electric butterfly valves.
Furthermore, the outside of the air outlet pipe is connected with a dust collector, and an air outlet of the dust collector is provided with an exhaust fan.
The drying method of the efficient tea drying device comprises the following steps:
s1, a plurality of inner boxes are arranged, and each inner box is filled with tea leaves to be dried; when drying, the top cover of the outer box is opened, the inner box filled with tea leaves is placed into the outer box, and the top cover is tightly covered.
S2, starting a centrifugal fan and a hot air device in sequence;
s3, controlling the first gate valve to be fully opened, controlling the second gate valve to be opened to one third to one half, blowing hot air generated by the hot air device into the outer box through the first branch pipe, the second branch pipe and the third branch pipe by the centrifugal fan and allowing the hot air to enter the inner box for drying tea leaves, wherein the air volume at the outlet of the first branch pipe is larger than that at the outlet of the third branch pipe, and the process lasts for 2-6 minutes; in the process, because the air volume of the first outlet of the branch pipe is larger than the air volume of the third outlet of the branch pipe, the left side of the inner box is pushed to move towards the right wall of the outer box by the wind thrust of the wind larger than the right side of the inner box, and the wind blown out by the first branch pipe transversely blows the left side wall of the inner box, until the right wall of the inner box contacts with the damping spring, under the action of the damping spring and the left and right wind forces, the movement is stopped after the left and right sides of the inner box are stressed in balance; at the moment, the outlets of the second branch pipes are over against the left side of the bottom of the inner box, tea leaves in the inner box are blown by hot air blown by the second branch pipes vertically to be lifted or suspended upwards, meanwhile, the tea leaves are blown by the hot air blown by the first branch pipes transversely to drift rightwards to make parabolic motion, finally, the tea leaves move to the right side of the inner box and are blown by the hot air blown by the third branch pipes transversely to move leftwards and downwards to fall to the left side of the bottom of the inner box, the tea leaves are blown by the hot air blown by the second branch pipes again to be lifted or suspended, and circular drying is carried out in the inner box; the water vapor in the tea is upwards brought out by the hot air through the air outlet pipe.
S4, controlling the first gate valve to be closed to one third to one half of opening, fully opening the second gate valve, blowing hot air generated by a hot air device into the outer box through the first branch pipe, the second branch pipe and the third branch pipe by a centrifugal fan, and enabling the hot air to enter the inner box for drying tea leaves, wherein the air volume of an outlet of the third branch pipe is larger than that of an outlet of the first branch pipe, and the process lasts for 2-6 minutes; in the process, because the air volume of the three outlets of the branch pipe is larger than that of the first outlet of the branch pipe, the right side of the inner box is pushed by the wind to be larger than the left side of the inner box, and the wind blown out by the three branch pipes transversely blows the right side wall of the inner box, the inner box is pushed to move towards the left wall of the outer box until the left wall of the inner box contacts with the damping spring, and under the action of the damping spring and the left and right wind forces, the movement is stopped after the left and right sides of the inner box are stressed in balance; at the moment, the outlets of the second branch pipes are over against the right side of the bottom of the inner box, tea leaves in the inner box are blown by hot air blown from the second branch pipes vertically to be lifted or suspended upwards, meanwhile, the tea leaves are blown by hot air blown from the third branch pipes transversely to drift leftwards to make parabolic motion, finally, the tea leaves move to the left side of the inner box, are blown by the hot air blown from the first branch pipes transversely to move rightwards and downwards to fall to the right side of the bottom of the inner box, are blown by the hot air blown from the second branch pipes to be lifted or suspended downwards again, and are circularly dried in the inner box; the water vapor in the tea is upwards brought out by the hot air through the air outlet pipe.
S5, circularly repeating the steps S3-S4 for two to five times, and drying the tea leaves.
S6, after drying is finished, sequentially closing the hot air device and the centrifugal fan, opening the top cover, lifting the inner box, opening the cover body of the inner box, and pouring out tea leaves; and repeating the steps S1-S5, and continuing the tea drying operation.
The other drying method of the efficient tea drying device comprises the following steps:
s1, a plurality of inner boxes are arranged, and each inner box is filled with tea leaves to be dried; when the tea is dried, the top cover of the outer box is opened, the inner box filled with the tea is placed into the outer box, the top cover is tightly covered, and the air outlet pipe is connected with the air inlet pipe of the dust collector.
And S2, sequentially starting the exhaust fan, the dust collector, the centrifugal fan and the hot air device.
S3, controlling the first gate valve to be opened fully, controlling the second gate valve to be opened to one third to one half, blowing hot air generated by the hot air device into the outer box through the first branch pipe, the second branch pipe and the third branch pipe and allowing the hot air to enter the inner box for drying tea leaves, wherein the air volume of the outlet of the first branch pipe is larger than that of the outlet of the third branch pipe, and the process lasts for 2-6 minutes; in the process, because the air volume of the first outlet of the branch pipe is larger than the air volume of the third outlet of the branch pipe, the left side of the inner box is pushed to move towards the right wall of the outer box by the wind thrust of the wind larger than the right side of the inner box, and the wind blown out by the first branch pipe transversely blows the left side wall of the inner box, until the right wall of the inner box contacts with the damping spring, under the action of the damping spring and the left and right wind forces, the movement is stopped after the left and right sides of the inner box are stressed in balance; at the moment, the outlets of the second branch pipes are over against the left side of the bottom of the inner box, tea leaves in the inner box are blown by hot air blown by the second branch pipes vertically to be lifted or suspended upwards, meanwhile, the tea leaves are blown by the hot air blown by the first branch pipes transversely to drift rightwards to make parabolic motion, finally, the tea leaves move to the right side of the inner box and are blown by the hot air blown by the third branch pipes transversely to move leftwards and downwards to fall to the left side of the bottom of the inner box, the tea leaves are blown by the hot air blown by the second branch pipes again to be lifted or suspended, and circular drying is carried out in the inner box; the water vapor in the tea and the generated dust are upwards brought out by hot air through the air outlet pipe, enter the dust collector, are dedusted by the dust collector and are discharged.
S4, controlling the first gate valve to be closed to one third to one half of opening, fully opening the second gate valve, blowing hot air generated by a hot air device into the outer box through the first branch pipe, the second branch pipe and the third branch pipe by a centrifugal fan, and enabling the hot air to enter the inner box for drying tea leaves, wherein the air volume of an outlet of the third branch pipe is larger than that of an outlet of the first branch pipe, and the process lasts for 2-6 minutes; in the process, because the air volume of the three outlets of the branch pipe is larger than that of the first outlet of the branch pipe, the right side of the inner box is pushed by the wind to be larger than the left side of the inner box, and the wind blown out by the three branch pipes transversely blows the right side wall of the inner box, the inner box is pushed to move towards the left wall of the outer box until the left wall of the inner box contacts with the damping spring, and under the action of the damping spring and the left and right wind forces, the movement is stopped after the left and right sides of the inner box are stressed in balance; at the moment, the outlets of the second branch pipes are over against the right side of the bottom of the inner box, tea leaves in the inner box are blown by hot air blown from the second branch pipes vertically to be lifted or suspended upwards, meanwhile, the tea leaves are blown by hot air blown from the third branch pipes transversely to drift leftwards to make parabolic motion, finally, the tea leaves move to the left side of the inner box, are blown by the hot air blown from the first branch pipes transversely to move rightwards and downwards to fall to the right side of the bottom of the inner box, are blown by the hot air blown from the second branch pipes to be lifted or suspended downwards again, and are circularly dried in the inner box; the water vapor in the tea leaves is upwards brought out by the hot air through the air outlet pipe; the water vapor in the tea and the generated dust are upwards brought out by hot air through the air outlet pipe, enter the dust collector, are dedusted by the dust collector and are discharged.
S5, circularly repeating the steps S3-S4 for two to five times, and drying the tea leaves.
S6, after drying is finished, closing the hot air device, the centrifugal fan, the dust collector and the exhaust fan in sequence, opening the top cover, lifting the inner box, opening the cover body of the inner box, and pouring out the tea leaves; and repeating the steps S1-S5, and continuing the tea drying operation.
According to the tea leaf drying machine, the movement of tea leaves in the inner box is realized by controlling the air volume of the left branch pipe and the right branch pipe, so that the drying speed is accelerated, and the drying efficiency is improved.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
FIG. 1 is a schematic structural diagram of the efficient tea drying device of the present invention;
FIG. 2 is a schematic view of the inner box of FIG. 1 shown in a right-hand position;
FIG. 3 is a schematic view of the inner box of FIG. 1 shown in a left-hand position;
shown in the figure: 1-outer box, 2-top cover, 3-air outlet pipe, 4-inner box, 5-cover, 6-roller, 7-centrifugal fan, 8-hot air pipe, 9-shunt pipe, 10-branch pipe I, 11-gate valve I, 12-branch pipe II, 13-pillar, 14-branch pipe III, 15-gate valve II and 16-damping spring.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
It should be understood that the structures, proportions, and dimensions shown in the drawings and described herein are for illustrative purposes only and are not intended to limit the scope of the present invention, which is defined by the claims, but rather by the claims. In addition, the terms such as "upper", "lower", "left", "right" and "middle" used in the present specification are for convenience of description only, and are not intended to limit the scope of the present invention, and changes or modifications of the relative relationship thereof may be regarded as the scope of the present invention without substantial changes in the technical contents.
The first embodiment is as follows:
as shown in fig. 1-3, a drying method of a tea leaf high-efficiency drying device, the tea leaf high-efficiency drying device comprises an outer box 1, an inner box 4, a centrifugal fan 7, a hot air pipe 8, a shunt pipe 9, a first branch pipe 10, a second branch pipe 12 and a third branch pipe 14; the outer box 1 is a hollow box (square or round box) with an opening at the top, a top cover 2 is detachably mounted at the top of the outer box 1, the middle part of the top cover 2 is in threaded connection with an air outlet pipe 3 extending into the outer box 1, a plurality of damping springs 16 are uniformly arranged on the inner wall of the outer box 1, and the bottom of the outer box 1 is supported by a plurality of support columns 13; the inner box 4 is a box body (square or round box body) arranged inside the outer box 1, the top of the inner box 4 is provided with an opening and is detachably provided with a hollowed box cover 5, the side wall and the bottom of the inner box 4 are provided with a plurality of ventilation holes with the caliber smaller than that of tea, and two sides of the bottom of the inner box 4 are also provided with rollers 6 (so that the inner box 4 can move in the outer box 1); the centrifugal fan 7 is arranged outside the outer box 1, and an air inlet of the centrifugal fan is communicated with a hot air device; the hot air pipe 8 and the shunt pipe 9 are arranged at the bottom of the outer box 1; one end of the hot air pipe 8 is communicated with the air outlet of the centrifugal fan 7, and the other end is communicated with the shunt pipe 9 (the middle part); the lower ends of the first branch pipe 10, the second branch pipe 12 and the third branch pipe 14 are sequentially communicated with the flow dividing pipe 9 (the first branch pipe 10 and the third branch pipe 14 are respectively connected to two ends of the flow dividing pipe 9, the second branch pipe 12 is connected to the middle part of the flow dividing pipe 9), the first branch pipe 10 and the third branch pipe 14 are identical in caliber and length, the upper end of the first branch pipe 10 transversely penetrates through the left side wall of the outer box 1 and then extends into the outer box 1 and is opposite to the left side wall of the inner box 4, the upper end of the second branch pipe 12 vertically penetrates through the bottom of the outer box 1 and then extends into the outer box 1 and is opposite to the bottom of the inner box 4, and the upper end of the third branch pipe 14 transversely penetrates through the right side wall of the outer box 1 and then extends into the outer box 1 and is opposite to the right side wall of the inner box 4; a first gate valve 11 is arranged on the first branch pipe 10; and a second gate valve 15 is arranged on the third branch pipe 14. The top cover 2 is detachably connected to the top of the outer box 1 through bolts or threads; the box cover 5 is detachably connected to the top of the inner box 4 through bolts or threads. The hot air device is a hot blast stove or an electric heating pipe arranged at an air inlet (or an air outlet) of the centrifugal fan 7. The first gate valve 11 and the second gate valve 15 are electric butterfly valves. Sealing rings are arranged at the joints of the first branch pipe 10, the second branch pipe 12 and the third branch pipe 14 and the outer box 1.
The steps of adopting this embodiment the high-efficient drying device of tealeaves stoving tealeaves are as follows:
s1, a plurality of inner boxes 4 are arranged, and each inner box is filled with tea leaves to be dried; during drying, the top cover 2 of the outer box 1 is opened, the inner box 4 filled with tea leaves is placed into the outer box 1, and the top cover 2 is tightly covered.
S2, the centrifugal fan 7 and the hot air device are sequentially started.
S3, controlling a first gate valve 11 to be fully opened, opening a second gate valve 15 to one third to one half, blowing hot air generated by a hot air device into the outer box 1 through a first branch pipe 10, a second branch pipe 14 and a third branch pipe 14 by a centrifugal fan 7, and enabling the hot air to enter the inner box 4 to dry tea leaves, wherein the air volume at an outlet of the first branch pipe 10 is larger than that at an outlet of the third branch pipe 14, and the process lasts for 2-6 minutes; in the process, because the air volume at the outlet of the first branch pipe 10 is greater than the air volume at the outlet of the third branch pipe 14, the thrust of the air borne by the left side of the inner box 4 is greater than the thrust of the air borne by the right side of the inner box 4, and the roller 6 is arranged, the air blown out from the first branch pipe 10 transversely blows the left side wall of the inner box 4, so that the inner box 4 is easily pushed to move towards the right wall of the outer box 1 until the right wall of the inner box 4 contacts the damping spring 16, and the movement is stopped when the left side and the right side of the inner box 4 are stressed in balance under the action of the damping spring 16 and left and right wind forces; at the moment, the outlet of the second branch pipe 12 is over against the left side of the bottom of the inner box 4, tea leaves in the inner box 4 are blown by hot air blown vertically from the second branch pipe 12 to be lifted or suspended upwards, and meanwhile, the tea leaves are blown by hot air blown transversely from the first branch pipe 12 to drift rightwards to perform parabolic motion, finally the tea leaves move to the right side of the inner box 4 and are blown by hot air blown transversely from the third branch pipe 14 to move leftwards and downwards, fall to the left side of the bottom of the inner box 4, are blown by hot air blown from the second branch pipe 12 again to be lifted or suspended, and are circularly dried in the inner box 4; the water vapor in the tea is upwards brought out by the hot air through the air outlet pipe 3.
S4, controlling a first gate valve 11 to be closed to one third to one half (one third, two fifths and one half) of opening degree, fully opening a second gate valve 15, blowing hot air generated by a hot air device into the outer box 1 through a first branch pipe 10, a second branch pipe 12 and a third branch pipe 14 by a centrifugal fan 7, enabling the hot air to enter the inner box 4 for drying tea leaves, wherein the air volume of an outlet of the third branch pipe 14 is larger than that of an outlet of the first branch pipe 10, and the process lasts for 2-6 minutes; in the process, because the air volume at the outlet of the branch pipe three 14 is greater than the air volume at the outlet of the branch pipe one 12, the thrust of the air on the right side of the inner box 4 is greater than the thrust of the air on the left side of the inner box 5, and because of the existence of the roller 6, the air blown out by the branch pipe three 25 transversely blows to the right side wall of the inner box 5, the inner box 4 is easily pushed to move towards the left wall of the outer box 1 until the left wall of the inner box 4 contacts the damping spring 16 on the left wall of the outer box 1, and under the action of the damping spring 16 and the left and right wind forces, the movement is stopped when the left and right sides of the inner box 4 are stressed in balance; at the moment, the outlet of the second branch pipe 12 is over against the right side of the bottom of the inner box 4, tea leaves in the inner box 4 are blown by hot air blown vertically from the second branch pipe 12 to be lifted or suspended upwards, meanwhile, the tea leaves are blown by hot air blown transversely from the third branch pipe 14 to float leftwards to make parabolic motion, finally, the tea leaves move to the left side of the inner box 4 and are blown by hot air blown transversely from the first branch pipe 10 to move rightwards and downwards to fall to the right side of the bottom of the inner box 4, and are blown by hot air blown from the second branch pipe 12 to be lifted or suspended again, and the tea leaves are circularly dried in the inner box 4; the water vapor in the tea is upwards brought out by the hot air through the air outlet pipe 3;
s5, circularly repeating the steps S3-S4 for two to five times to finish drying the tea leaves;
s6, after drying is finished, closing the hot air device and the centrifugal fan 7 in sequence, opening the top cover 2, lifting the inner box 4, opening the cover body 5 of the inner box 4 and pouring out tea leaves; and repeating the steps S1-S5, and continuing the tea drying operation.
Example two:
the difference between the embodiment and the first embodiment is that a dust collector is further connected to the outside of the air outlet pipe 3, and an exhaust fan is arranged at an air outlet of the dust collector.
The steps of drying the tea by adopting the high-efficiency tea drying device of the embodiment are as follows:
s1, a plurality of inner boxes 4 are arranged, and each inner box is filled with tea leaves to be dried; when drying, the top cover 2 of the outer box 1 is opened, the inner box 4 filled with tea leaves is placed in the outer box 1, the top cover 2 is tightly covered, and the air outlet pipe 3 is connected with an air inlet pipe of a dust collector;
and S2, sequentially starting the exhaust fan, the dust collector, the centrifugal fan 7 and the hot air device.
S3, controlling a first gate valve 11 to be fully opened, opening a second gate valve 15 to one third to one half, blowing hot air generated by a hot air device into the outer box 1 through a first branch pipe 10, a second branch pipe 14 and a third branch pipe 14 by a centrifugal fan 7, and enabling the hot air to enter the inner box 4 to dry tea leaves, wherein the air volume at an outlet of the first branch pipe 10 is larger than that at an outlet of the third branch pipe 14, and the process lasts for 2-6 minutes; in the process, because the air volume at the outlet of the first branch pipe 10 is greater than the air volume at the outlet of the third branch pipe 14, the thrust of the air borne by the left side of the inner box 4 is greater than the thrust of the air borne by the right side of the inner box 4, and the roller 6 is arranged, the air blown out from the first branch pipe 10 transversely blows the left side wall of the inner box 4, so that the inner box 4 is easily pushed to move towards the right wall of the outer box 1 until the right wall of the inner box 4 contacts the damping spring 16, and the movement is stopped when the left side and the right side of the inner box 4 are stressed in balance under the action of the damping spring 16 and left and right wind forces; at the moment, the outlet of the second branch pipe 12 is over against the left side of the bottom of the inner box 4, tea leaves in the inner box 4 are blown by hot air blown vertically from the second branch pipe 12 to be lifted or suspended upwards, and meanwhile, the tea leaves are blown by hot air blown transversely from the first branch pipe 12 to drift rightwards to perform parabolic motion, finally the tea leaves move to the right side of the inner box 4 and are blown by hot air blown transversely from the third branch pipe 14 to move leftwards and downwards, fall to the left side of the bottom of the inner box 4, are blown by hot air blown from the second branch pipe 12 again to be lifted or suspended, and are circularly dried in the inner box 4; the water vapor and the generated dust in the tea (under the suction action of the exhaust fan, the rotating speeds of the exhaust fan and the centrifugal extension are adjusted, the interior of the outer box 1 is set to be micro negative pressure, such as-0.01 to-0.03 Mpa, and the micro negative pressure needs to be ensured, the action of the first branch pipe 10 and the third branch pipe 14 on the inner box 4 and the tea in the inner box 4 still exists), the water vapor and the generated dust are upwards carried out by hot air through the air outlet pipe 3, enter the dust collector, are dedusted by the dust collector and are discharged.
S4, controlling a first gate valve 11 to be closed to a half (one third, two fifths or one half) of the opening degree, fully opening a second gate valve 15, blowing hot air generated by a hot air device into the outer box 1 through a first branch pipe 10, a second branch pipe 12 and a third branch pipe 14 by a centrifugal fan 7, enabling the hot air to enter the inner box 4 for drying tea leaves, wherein the air volume of an outlet of the third branch pipe 14 is larger than that of an outlet of the first branch pipe 10, and the process lasts for 2-6 minutes; in the process, because the air volume at the outlet of the branch pipe three 14 is greater than the air volume at the outlet of the branch pipe one 12, the thrust of the air on the right side of the inner box 4 is greater than the thrust of the air on the left side of the inner box 5, and because of the existence of the roller 6, the air blown out by the branch pipe three 25 transversely blows to the right side wall of the inner box 5, the inner box 4 is easily pushed to move towards the left wall of the outer box 1 until the left wall of the inner box 4 contacts the damping spring 16 on the left wall of the outer box 1, and under the action of the damping spring 16 and the left and right wind forces, the movement is stopped when the left and right sides of the inner box 4 are stressed in balance; at the moment, the outlet of the second branch pipe 12 is over against the right side of the bottom of the inner box 4, tea leaves in the inner box 4 are blown by hot air blown vertically from the second branch pipe 12 to be lifted or suspended upwards, meanwhile, the tea leaves are blown by hot air blown transversely from the third branch pipe 14 to float leftwards to make parabolic motion, finally, the tea leaves move to the left side of the inner box 4 and are blown by hot air blown transversely from the first branch pipe 10 to move rightwards and downwards to fall to the right side of the bottom of the inner box 4, and are blown by hot air blown from the second branch pipe 12 to be lifted or suspended again, and the tea leaves are circularly dried in the inner box 4; the water vapor in the tea and the generated dust are upwards brought out by the hot air through the air outlet pipe 3, enter the dust collector, are dedusted by the dust collector and are discharged;
s5, circularly repeating the steps S3-S4 for two to five times, and drying the tea leaves.
S6, after drying is finished, closing the hot air device, the centrifugal fan 7, the dust collector and the exhaust fan in sequence, opening the top cover 2, lifting the inner box 4, opening the inner box 4 and pouring out tea leaves by using the cover body 5; and repeating the steps S1-S5, and continuing the tea leaf drying operation.
It is to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The scope of the present invention is not limited to the technical solutions disclosed in the embodiments, and any modifications, equivalent substitutions, improvements, etc. made to the above embodiments according to the technical spirit of the present invention fall within the scope of the present invention.

Claims (7)

1. A drying method of a tea high-efficiency drying device is characterized by comprising an outer box, an inner box, a centrifugal fan, a hot air pipe, a flow dividing pipe, a first branch pipe, a second branch pipe and a third branch pipe; the outer box is a hollow box body with an opening at the top, a top cover is detachably arranged at the top of the outer box, the middle part of the top cover is in threaded connection with an air outlet pipe extending into the outer box, and a plurality of damping springs are uniformly arranged on the inner wall of the outer box; the inner box is a box body arranged in the outer box, the top of the inner box is provided with an opening and is detachably provided with a hollowed box cover, the side wall and the bottom of the inner box are provided with a plurality of ventilation holes with the calibers smaller than tea leaves, and two sides of the bottom of the inner box are also provided with rollers; the centrifugal fan is arranged outside the outer box, and an air inlet of the centrifugal fan is communicated with the hot air device; the hot air pipe and the shunt pipe are both arranged at the bottom of the outer box; one end of the hot air pipe is communicated with the air outlet of the centrifugal fan, and the other end of the hot air pipe is communicated with the flow dividing pipe; the lower ends of the first branch pipe, the second branch pipe and the third branch pipe are sequentially communicated with the flow dividing pipe, the first branch pipe and the third branch pipe are the same in caliber and length, the upper end of the first branch pipe transversely penetrates through the left side wall of the outer box and then extends into the outer box and is opposite to the left side wall of the inner box, the upper end of the second branch pipe vertically penetrates through the bottom of the outer box and then extends into the outer box and is opposite to the bottom of the inner box, and the upper end of the third branch pipe transversely penetrates through the right side wall of the outer box and then extends into the outer box and is opposite to the right side wall of the inner box; a first gate valve is arranged on the first branch pipe; a second gate valve is arranged on the third branch pipe;
the drying steps of the high-efficiency tea leaf drying device are as follows:
s1, a plurality of inner boxes are arranged, and each inner box is filled with tea leaves to be dried; when drying, opening the top cover of the outer box, putting the inner box filled with tea leaves into the outer box, and tightly covering the top cover;
s2, starting the centrifugal fan and the hot air device in sequence;
s3, controlling the first gate valve to be fully opened, controlling the second gate valve to be opened to one third to one half, blowing hot air generated by the hot air device into the outer box through the first branch pipe, the second branch pipe and the third branch pipe by the centrifugal fan and allowing the hot air to enter the inner box for drying tea leaves, wherein the air volume at the outlet of the first branch pipe is larger than that at the outlet of the third branch pipe, and the process lasts for 2-6 minutes; the water vapor in the tea leaves is upwards brought out by the hot air through the air outlet pipe;
s4, controlling the first gate valve to be closed to one third to one half of opening, fully opening the second gate valve, blowing hot air generated by the hot air device into the outer box through the first branch pipe, the second branch pipe and the third branch pipe and allowing the hot air to enter the inner box for drying tea leaves, wherein the air volume of the outlet of the third branch pipe is larger than that of the outlet of the first branch pipe, and the process lasts for 2-6 minutes; the water vapor in the tea leaves is upwards brought out by the hot air through the air outlet pipe;
s5, circularly repeating the steps S3-S4 for two to five times to finish drying the tea leaves;
s6, after drying is finished, closing the hot air device and the centrifugal fan in sequence, opening the top cover, lifting the inner box, opening the cover body of the inner box, and pouring out the tea leaves; and repeating the steps S1-S5, and continuing the tea drying operation.
2. The drying method of the tea leaf high-efficiency drying device according to claim 1, wherein the bottom of the outer box is supported by a plurality of support columns.
3. The drying method of the tea leaf high-efficiency drying device according to claim 1, wherein the top cover is detachably connected to the top of the outer box through bolts or threads; the box cover is detachably connected to the top of the inner box through bolts or threads.
4. The drying method of the tea leaf high-efficiency drying device according to claim 1, wherein the hot air device is a hot air furnace or an electric heating pipe arranged at an air inlet of a centrifugal fan.
5. The drying method of the efficient tea drying device according to claim 1, wherein the first gate valve and the second gate valve are electric butterfly valves.
6. The drying method of the efficient tea drying device according to claim 1, wherein a dust collector is connected to the outside of the air outlet pipe, and an exhaust fan is arranged at an air outlet of the dust collector.
7. The drying method of the tea leaf high-efficiency drying device according to claim 6, characterized by comprising the following steps:
s1, a plurality of inner boxes are arranged, and each inner box is filled with tea leaves to be dried; when drying, opening the top cover of the outer box, placing the inner box filled with tea leaves into the outer box, tightly covering the top cover, and connecting the air outlet pipe with the air inlet pipe of the dust collector;
s2, sequentially starting an exhaust fan, a dust collector, a centrifugal fan and a hot air device;
s3, controlling the first gate valve to be fully opened, controlling the second gate valve to be opened to one third to one half, blowing hot air generated by the hot air device into the outer box through the first branch pipe, the second branch pipe and the third branch pipe by the centrifugal fan and allowing the hot air to enter the inner box for drying tea leaves, wherein the air volume at the outlet of the first branch pipe is larger than that at the outlet of the third branch pipe, and the process lasts for 2-6 minutes; the water vapor in the tea and the generated dust are upwards brought out by hot air through an air outlet pipe, enter a dust collector, are dedusted by the dust collector and are discharged;
s4, controlling the first gate valve to be closed to one third to one half of opening, fully opening the second gate valve, blowing hot air generated by a hot air device into the outer box through the first branch pipe, the second branch pipe and the third branch pipe by a centrifugal fan, and enabling the hot air to enter the inner box for drying tea leaves, wherein the air volume of an outlet of the third branch pipe is larger than that of an outlet of the first branch pipe, and the process lasts for 2-6 minutes; the water vapor in the tea and the generated dust are upwards brought out by hot air through an air outlet pipe, enter a dust collector, are dedusted by the dust collector and are discharged;
s5, circularly repeating the steps S3-S4 for two to five times to finish drying the tea leaves;
s6, after drying is finished, sequentially closing the hot air device, the centrifugal fan, the dust collector and the exhaust fan, opening the top cover, lifting the inner box, opening the cover body of the inner box, and pouring out tea leaves; and repeating the steps S1-S5, and continuing the tea drying operation.
CN202010701902.3A 2020-07-21 2020-07-21 Drying method of efficient tea drying device Active CN111879100B (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN207280111U (en) * 2017-06-01 2018-04-27 广州达尔斯科生物科技有限公司 A kind of medicinal material drying unit
CN109125770A (en) * 2018-09-17 2019-01-04 郑州光之源电子科技有限公司 A kind of Medical appliance decontaminating apparatus
CN209689310U (en) * 2019-03-14 2019-11-26 闫亮 A kind of agricultural feed processing drying unit
CN209877562U (en) * 2019-03-11 2019-12-31 杭州思锐研磨制品有限公司 Drying device for spinning
CN209914944U (en) * 2019-03-15 2020-01-10 紫金县惠农客家茶产业研究所 Drying-machine of tea processing
CN210107909U (en) * 2019-04-26 2020-02-21 丘泰泉 Be used for gold thread lotus drying device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN207280111U (en) * 2017-06-01 2018-04-27 广州达尔斯科生物科技有限公司 A kind of medicinal material drying unit
CN109125770A (en) * 2018-09-17 2019-01-04 郑州光之源电子科技有限公司 A kind of Medical appliance decontaminating apparatus
CN209877562U (en) * 2019-03-11 2019-12-31 杭州思锐研磨制品有限公司 Drying device for spinning
CN209689310U (en) * 2019-03-14 2019-11-26 闫亮 A kind of agricultural feed processing drying unit
CN209914944U (en) * 2019-03-15 2020-01-10 紫金县惠农客家茶产业研究所 Drying-machine of tea processing
CN210107909U (en) * 2019-04-26 2020-02-21 丘泰泉 Be used for gold thread lotus drying device

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