CN105831296A - Energy-saving type tea leaf drying machine and tea leaf drying method - Google Patents
Energy-saving type tea leaf drying machine and tea leaf drying method Download PDFInfo
- Publication number
- CN105831296A CN105831296A CN201610242611.6A CN201610242611A CN105831296A CN 105831296 A CN105831296 A CN 105831296A CN 201610242611 A CN201610242611 A CN 201610242611A CN 105831296 A CN105831296 A CN 105831296A
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- China
- Prior art keywords
- baking oven
- drying
- energy
- folium camelliae
- camelliae sinensis
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- 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
Abstract
The invention discloses an energy-saving type tea leaf drying machine and a tea leaf drying method. The energy-saving type tea leaf drying machine comprises a first drying oven, a suction fan and a second drying oven, wherein an air inlet for introduction of hot air is formed in the first drying oven, the second drying oven is arranged at the top of the first drying oven, at least one group of heat transfer pipelines are arranged in the second drying oven, medium in the heat transfer pipelines is isolated from an inner cavity of the second drying oven, one end of the heat transfer pipeline is communicated with an inner cavity of the first drying oven, and the other end of the heat transfer pipeline extends to the inner cavity of the second drying oven and is connected with an air suction hole of the suction fan. The energy-saving type tea drying machine disclosed by the invention has the advantages that residual damp and hot tail gas after initial drying of tea is fully utilized as a heat source for secondary drying, so that the damp and hot tail gas is repeatedly utilized, energy is saved, and the production cost is reduced; the tea is convenient to convey during the initial drying and secondary drying, so that conveying energy consumption in production process is reduced; besides, the tea drying method has an energy-saving and environment-friendly effects, and colour, fragrance and taste of the tea can become more perfect.
Description
Technical field
The invention belongs to Tea Production technical field, be specifically related to a kind of energy-saving tea drier and Folium Camelliae sinensis dries
Drying method.
Background technology
Containing compositions such as catechin, cholestenone, caffeine, inositol, folic acid, pantothenic acid in Folium Camelliae sinensis, permissible
Promote health.Tea be Chinese from ancient times with regard to beverage raw material prevailing, tea is described as " the big beverage in the world three
One of ", Tea Processing needs multiple working procedure to realize, and dry be all kinds of tea quality-improving critical process it
One, its purpose one is to make Folium Camelliae sinensis be dehydrated, thus reaches certain water content, it is simple to the storage of Folium Camelliae sinensis；Two are
In drying course, Folium Camelliae sinensis can occur the thermal chemical reaction of complexity so that Folium Camelliae sinensis color has more they tended to
Kind.
Along with the development of modern automation, wherein tea-manufacturing technology has obtained the biggest also with the development in epoch
Development, tea leaf conveying, when being dried by Folium Camelliae sinensis, is generally delivered to be dried for the first time in baking oven (just drying),
After being dried for the first time, after treating Folium Camelliae sinensis cooling, also need to deliver to tea leaf conveying the baking oven that temperature is relatively low enters
Row redrying (dries Titian) again.
At present in Tea Production, commonly used baking oven is turnover plate type baking oven, and turnover plate type baking oven is hot air drying
The one of dry machine, turnover plate type baking oven has various structures form, but ultimate principle is identical.Such as Publication No.
The patent documentation of 2569063Y discloses a kind of crawler slat low temp dying machine, including casing, casing carries
Having air inlet, air outlet, charging aperture and discharging opening, be provided with multilamellar crawler belt panel turnover mechanism in casing, these are many
Layer crawler belt panel turnover mechanism includes rotary sprocket wheel and is arranged on sprocket wheel by the crawler belt of chain wheel drive, this shoe
Band includes the tape base being together in series by turnover panel and the turnover panel being hinged on tape base, with through hole on turnover panel, mechanism
On turnover panel when forward to above sprocket wheel end to end overlaping constitute the conveyer belt of acknowledgement of consignment material, heat
After the hot blast that wind furnace produces enters casing by the ventilation shaft of the air inlet of bottom of shell, by turnover panel
Gap between through hole and crawler belt is gradually increasing, and the most up temperature is the lowest, is dried by material during rising
Dry.Material, after charging aperture enters, first falls on the crawler belt panel turnover mechanism of the superiors, above sprocket wheel
Turnover panel on crawler belt covers under gravity in base band, plays the effect accepting material, and material is with crawler belt
Motion move to the end of crawler belt panel turnover mechanism, fall on next layer of crawler belt panel turnover mechanism, turnover panel now
Forwarding to the most therewith below sprocket wheel, under gravity, turnover panel is only hung in base band by hinged end, favorably
Pass through in hot blast.
The feature that visible turnover plate type baking oven has simple in construction, working ability is the strongest, and at running
In overturn due to material successively blanking, thus the product quality being dried is especially uniformly reliable.But turnover plate type dries
Case, in the drying course to material, can produce substantial amounts of damp and hot tail gas, in order to promote follow-up dry process,
Dry run needs constantly discharge damp and hot tail gas, and hot rich in a large amount of tails in the damp and hot tail gas discharged,
In existing production, generally by the directly discharge of damp and hot tail heat, cause the waste of a large amount of thermal source.
Summary of the invention
The invention provides a kind of energy-saving tea drier, the damp and hot tail gas that will remain during drying tea leaves
Recycling, it is to avoid the waste of the energy.
The technical scheme is that a kind of energy-saving tea drier, including the first baking oven, described first
Baking oven is provided with the air inlet that hot wind supply enters, and also includes induced-draught fan and is stacked and placed on the of the first baking oven top
Two baking ovens, are provided with least one set heat transfer pipe in described second baking oven, and the medium and second in heat transfer pipe dries
Box cavity completely cuts off, one end of described heat transfer pipe and the inner space of the first baking oven, the other end of heat transfer pipe
Extend to the second oven ncavity and be connected with the inlet scoop of induced-draught fan.
The present invention in use, carries out in tea leaf conveying is delivered to the first baking oven just drying, is passed through hot blast from air inlet
Folium Camelliae sinensis in first baking oven is carried out hot air drying, after tea primary drying is complete, obtains half-dried tea.The present invention will
Half-dried tea carries out multiple baking in being delivered to the second baking oven, a large amount of owing to will produce when Folium Camelliae sinensis just dries in the first baking oven
Damp and hot tail gas, the present invention can open induced-draught fan, and the damp and hot tail gas produced in the first baking oven will be inhaled into the
In heat transfer pipe in two baking ovens.And owing to sucking substantial amounts of damp and hot tail gas in heat transfer pipe, therefore will produce
Substantial amounts of heat, and the Folium Camelliae sinensis in the second baking oven and heat transfer pipe will occur heat exchange, thus realize Folium Camelliae sinensis
Multiple drying dry.
The present invention using during tea primary drying produce damp and hot tail gas as Folium Camelliae sinensis dry again time origin of heat, by with
The form of heat transfer pipe heat exchange carries out multiple baking, not only so that the damp and hot tail gas produced when just drying obtains weight
Multiple utilization, saves the energy, and when drying again, owing to damp and hot tail gas is positioned at heat transfer pipe, damp and hot tail gas is not
Can directly contact with Folium Camelliae sinensis, the quality of Folium Camelliae sinensis will not be impacted, and due to when Folium Camelliae sinensis bakees dry again
Temperature when temperature is relatively just dried is low, and this drying mode can also ensure that the multiple baking of Folium Camelliae sinensis keeps relatively low
Temperature, the multiple baking being suitable for Folium Camelliae sinensis is done.
As preferably, it is provided with least one set between the first baking oven and the second baking oven for by the first baking oven and second
The medium channel of the intracavity inter-connection of baking oven, the connectivity part of medium channel and the first baking oven is provided with every air door.
Medium passage of the present invention can be arranged at a lot of position, such as may be located at the first baking oven top and
Between the bottom of the second baking oven, it is also possible to be arranged at the first baking oven and the outside of the second baking oven.Folium Camelliae sinensis is first
The damp and hot tail gas produced during drying in oven fully enters in heat transfer pipe, when Folium Camelliae sinensis is in the first baking oven
Just drying complete and after discharging the first baking oven, now the damp and hot tail gas in the first baking oven the most all enters biography
In hot channel, but in the first baking oven, also remain part hot blast, therefore can open every air door so that residual
Stay the hot blast in the first baking oven directly to contact with Folium Camelliae sinensis in entering the second baking oven, Folium Camelliae sinensis is carried out multiple drying
Dry.Dehydrator of the present invention is so that thermal source is fully utilized, it is to avoid the waste of the energy, beneficially environmental protection,
And greatly reduce production cost.
As preferably, described first baking oven is turnover plate type baking oven, the charging aperture of described first baking oven and discharging opening
Laying respectively at the upper and lower of the first baking oven, described air inlet is positioned at and the first baking oven charging aperture opposite side
Bottom, described energy-saving tea drier also includes:
Feed pipe, is connected with the charging aperture of the first baking oven,
Ajutage, one end of ajutage is connected with the air inlet of the first baking oven, the other end and an air stove
Exhaust outlet is connected.
It is equipped with even leaf device at the charging port of described feed pipe and the charging aperture of the second baking oven.In order to make
Obtain Folium Camelliae sinensis to be uniformly distributed, it is simple to the baking of Folium Camelliae sinensis, when just drying when using the present invention that Folium Camelliae sinensis is carried out, by Folium Camelliae sinensis
When being delivered in the first baking oven via feed pipe, it is provided with even leaf device in the charging port of feed pipe so that
The Folium Camelliae sinensis entered in feed pipe is uniformly distributed.When Folium Camelliae sinensis carries out multiple baking, when entering the second baking oven, due to the
It is also provided with even leaf device at the charging aperture of two baking ovens, the most also Folium Camelliae sinensis can be carried out even leaf, the even leaf of the present invention
Device can be there to be employing various structures form of the prior art.
When first baking oven of the present invention is turnover plate type baking oven, owing to being provided with multilamellar crawler belt turnover panel in turnover plate type baking oven
Mechanism, when Folium Camelliae sinensis is after charging aperture enters, first falls on the crawler belt panel turnover mechanism of the superiors, now turns over
Plate plays the effect accepting Folium Camelliae sinensis, after Folium Camelliae sinensis moves to the end of crawler belt panel turnover mechanism with the motion of crawler belt,
Folium Camelliae sinensis will be fallen on next layer of crawler belt panel turnover mechanism, and turnover panel now forwards to below sprocket wheel the most therewith, at weight
Under power effect, turnover panel is only hung in base band by hinged end, and beneficially hot blast passes through.Folium Camelliae sinensis is carried out through multilamellar
After band panel turnover mechanism, finally discharge via discharging opening.
The second baking oven in the present invention can also be the baking oven of various structures form, as preferably, and described second
Baking oven is turnover plate type baking oven, and the charging aperture of described second baking oven and discharging opening lay respectively at the top of the second baking oven
And bottom, it being provided with multilamellar crawler belt panel turnover mechanism in described second baking oven, described gas pipeline is roundabout to be wound on respectively
Between layer crawler belt panel turnover mechanism.
In the present invention, the second baking oven is turnover plate type baking oven, is also equipped with multilamellar crawler belt panel turnover machine in the second baking oven
Structure, Folium Camelliae sinensis operation principle in turnover plate type baking oven is shown in above-mentioned, and the second baking oven is set to turnover plate type by the present invention
During baking oven, with Folium Camelliae sinensis, effective heat exchange occurring for the ease of heat transfer pipe, the present invention is roundabout by heat transfer pipe
Being wound between each layer crawler belt panel turnover mechanism, the damp and hot tail gas in heat transfer pipe will enter biography in the first baking oven
In hot channel, then under the suction of the first baking oven induced-draught fan, circuitous along heat transfer pipe of damp and hot tail gas
Return direction flowing, be covered with in heat transfer pipe, and heat transfer pipe roundabout be wound on each layer crawler belt panel turnover mechanism it
Between so that each layer crawler belt panel turnover mechanism is all corresponding with the position of heat transfer pipe so that each layer crawler belt panel turnover mechanism
On Folium Camelliae sinensis and heat transfer pipe there is uniform heat exchange so that tea-drying is uniform.
The mode that in the present invention, gas pipeline is roundabout has multiple, and as preferably, described gas pipeline includes many
It is arranged in vertical pipeline and the many horizontal pipes being arranged in the second oven interior, the phase of the second baking oven outer wall
It is provided with a horizontal pipe between two adjacent vertical pipelines, is provided with one between adjacent horizontal pipe vertically
Pipeline, described crawler belt panel turnover mechanism is in the space surrounded by two horizontal pipes and vertical pipeline.
When the damp and hot tail gas in the first baking oven is discharged, then damp and hot tail gas will dry from vertical pipeline and first
The connectivity part of case enters in vertical pipeline, and the suction at induced-draught fan is made by the damp and hot tail gas entered in vertical pipeline
Under with, damp and hot tail gas overcomes resistance so that damp and hot tail gas can flow along horizontal pipe, and is evenly arranged
In horizontal pipe.
Can be according to the quantity of baking oven size design gas pipeline, gas pipeline can have many groups, as preferably,
Described gas pipeline is many groups, and many group gas pipelines are arranged the most parallel.
In the present invention, the version of gas pipeline can have multiple, and such as gas pipeline can be pipe, square
Shape pipe or rectangular tube, as preferably, the circular in cross-section of described gas pipeline, rectangle or square.Make
For preferably, the cross section of described gas pipeline is rectangle.By surface maximum for rectangular tube area and crawler belt turnover panel
Mechanism's layer surface is corresponding, so so that the heat exchange of Folium Camelliae sinensis on crawler belt panel turnover mechanism and gas pipeline
Area is relatively big, the beneficially rapid draing of Folium Camelliae sinensis.
As preferably, being provided with auxiliary point wind mechanism between described first baking oven and the second baking oven, described auxiliary is divided
Wind mechanism includes:
Guide duct, the axial direction of described guide duct is provided with multiple respectively and between multiple crawler belt panel turnover mechanism
The connection joint of position correspondence connection；
Dividing airduct, two ports of described point of airduct are connected with ajutage and guide duct respectively.
If the temperature of heat transfer pipe is relatively low, the present invention can be provided in the second baking oven by auxiliary point wind mechanism
Hot blast, the present invention connects one point of airduct on ajutage, and the part hot blast in ajutage can branch to a point airduct
In, the hot blast in point airduct is transferred to guide duct again, is finally transferred in the second baking oven via connection joint.
Entering in point airduct for the ease of the hot blast in ajutage, as preferably, described point of airduct is towards air-supply
The Way out of pipe tilts.Owing to the hot blast in ajutage flows towards Way out, and point airduct is towards sending
When wind tube outlet direction tilts so that the import direction of point airduct is maintained at same side with the flow direction of hot blast
Position, when the hot blast in ajutage enters in point airduct, suffered resistance is less, it is not necessary to exogenous power is i.e.
Can enter in point airduct.
There is very important impact at the inclination angle of point airduct for the flow velocity of hot blast, as preferably, and described point
The inclination angle of airduct is 30～60 degree.
As preferably, the connectivity part of described point of airduct and ajutage is provided with regulation valve.Temperature in the second baking oven
When spending suitable, now need not supply hot blast in point airduct, in order to reduce the loss of the energy, the present invention exists
Airduct is divided to be provided with regulation valve with the connectivity part of ajutage, when needs supply heat in point airduct in heat transfer pipe
During wind, open regulation valve, and can be by regulating the uninterrupted of valve scalable hot blast；When need not
To when supplying hot blast in heat transfer pipe in point airduct, close regulation valve.
Present invention Folium Camelliae sinensis after drying at the beginning of the first baking oven, when being delivered to multiple baking operation, owing to the second baking oven is (multiple
Sound of a roaring fire case) be positioned at the top of the first baking oven, as preferably, described energy-saving tea drier also include for
The tea leaf conveying that first baking oven discharge outlet is discharged is delivered to the conveyer at the second baking oven charging aperture.As preferably,
Described conveyer is vertical conveyer.
Present invention also offers the method that above-mentioned energy-saving tea drier dries Folium Camelliae sinensis, comprise the following steps:
First, in the first baking oven and the second baking oven, it is passed through hot blast preheats；
Second, stop being passed through hot blast in the second baking oven, continue in the first baking oven, be continuously passed through heat
Wind, and carry out in Folium Camelliae sinensis is delivered to the first baking oven via the charging aperture of the first baking oven just drying, wherein hot blast temperature
Degree is 120～140 DEG C, after drying 20～40min, obtains half-dried tea；
3rd, open induced-draught fan so that the heat transfer that the damp and hot tail gas produced when just drying will enter in the second baking oven
In pipeline, the damp and hot tail gas entered in heat transfer pipe completely cuts off with the second oven ncavity, then by half-dried tea from the
The discharging opening of one baking oven is discharged, and stops heat air delivery in the first baking oven；
4th, after the cooling of half-dried tea, half-dried tea is delivered to the second baking oven via the charging aperture of the second baking oven
Inside carrying out drying multiple baking, the half-dried tea in the second baking oven is by carrying out drying again with heat transfer pipe generation heat exchange
Dry, dry multiple baking and obtain dry tea.
When Folium Camelliae sinensis carries out just drying in the present invention, use the mode of hot air drying that Folium Camelliae sinensis is dried, work as Folium Camelliae sinensis
Just drying complete, when carrying out multiple baking, use the mode dried, temperature is low when relatively just drying.The present invention is by adopting
With thermal source when the damp and hot tail gas of residual dries again as Folium Camelliae sinensis in baking oven during tea primary drying, damp and hot tail gas is passed through
In heat transfer pipe, carry out heat exchange, when the Folium Camelliae sinensis in the first baking oven is all arranged by heat transfer pipe and half-dried tea
After going out, stop in the first baking oven heat air delivery, Folium Camelliae sinensis carry out in the second baking oven multiple dry time, by with
The form of heat transfer pipe heat exchange is dried, and owing to directly not contacting with damp and hot tail gas, the present invention repeats profit
While damp and hot tail gas, do not interfere with the quality of Folium Camelliae sinensis.
As preferably, when preheating the first baking oven and the second baking oven, opening every air door, air stove is discharged
Hot blast enter in the first baking oven via ajutage, the part hot blast in the first baking oven via medium channel enter
In second baking oven；Preheat complete after, close every air door.
As preferably, after half-dried tea is all discharged via the discharging opening of the first baking oven, stop drying to first
In case while heat air delivery, open every air door so that in the first baking oven, the hot blast of residual is via medium channel
Enter in the second baking oven.
The present invention is when Folium Camelliae sinensis bakees dry again, after half-dried tea all discharges the first baking oven, in the first baking oven
Damp and hot tail gas also fully enter in heat transfer pipe, now can also open every air door, by residual in the first baking oven
The hot blast stayed is delivered in the second baking oven via medium channel so that Folium Camelliae sinensis is directly done by the hot blast of residual
Dry, therefore the present invention when carrying out multiple baking and doing to Folium Camelliae sinensis, can use and carry out heat exchange with heat transfer pipe
Form is dried, it would however also be possible to employ while heat transfer pipe heat exchange method, the side of additional hot air drying
Formula.
When Folium Camelliae sinensis dries again, use the mode dried, primarily serve the effect of Titian, therefore its temperature relatively at the beginning of
During baking low, as preferably, the temperature in the second baking oven is 80～100 DEG C, again dry the time be 30～40min.If
When temperature in second baking oven needs to adjust, it is also possible to be passed through heat by auxiliary point wind mechanism in the second baking oven
Wind.
Compared with prior art, beneficial effects of the present invention is embodied in:
(1) present invention makes full use of the damp and hot tail gas of tea primary drying residual, heat when drying again as Folium Camelliae sinensis
Amount source so that damp and hot tail gas obtains repeating recycling, saves the energy, reduces production cost；
(2) the first baking operation of Folium Camelliae sinensis of the present invention and to dry operation conveying again convenient, reduce in production process is defeated
Send energy consumption；
(3) the drying tea leaves method energy-conserving and environment-protective of the present invention, and enable to Folium Camelliae sinensis color and more become
In perfect；
(4), compared with existing tea drying oven, when consuming the identical energy, dehydrator of the present invention makes baking oven
Effectively dry area and improve twice.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the structural representation of the first embodiment of the present invention.
Fig. 3 is the structural representation of the second embodiment of the present invention.
Fig. 4 is the lateral structural representation of Fig. 2.
Detailed description of the invention
As it is shown in figure 1, the present invention includes that the first baking oven 1, the first baking oven 1 are provided with the air intake that hot wind supply enters
Mouth 11, is provided with every air door 12 at the top of the first baking oven 1, also includes induced-draught fan 3 and be stacked and placed on the first baking
Second baking oven 2 at case 1 top, is provided with least one set heat transfer pipe 21, heat transfer pipe 21 in the second baking oven 2
Interior medium and the isolation of the second baking oven 2 inner chamber, one end of described heat transfer pipe 21 and the inner chamber of the first baking oven 1
Connection, the other end of heat transfer pipe 21 extends to the second baking oven 2 inner chamber and the inlet scoop phase with induced-draught fan 3
Connect.
As in figure 2 it is shown, be provided with least one set for by the first baking oven 1 between the first baking oven 1 and the second baking oven 2
With the medium channel 14 of the intracavity inter-connection of the second baking oven 2, medium channel 14 and the connectivity part of the first baking oven 1
It is provided with every air door 12.
As shown in Figure 1 and Figure 4, present invention Folium Camelliae sinensis after the first baking oven 1 just dries, it is delivered to multiple baking work
During sequence, owing to the second baking oven 2 (multiple sound of a roaring fire case) is positioned at the top of the first baking oven 1, present invention additionally comprises for
The tea leaf conveying that first baking oven 1 discharge outlet is discharged is delivered to the conveyer 9 at the second baking oven 2 charging aperture.Typically
In the case of, conveyer 9 is vertical conveyer.
The present invention in use, carries out in tea leaf conveying is delivered to the first baking oven 1 just drying, is passed through from air inlet 11
Hot blast carries out hot air drying to the Folium Camelliae sinensis in the first baking oven 1, obtains half-dried tea after tea primary drying is complete.This
Invention carries out multiple baking in half-dried tea is delivered to the second baking oven 2, when just drying in the first baking oven 1 due to Folium Camelliae sinensis
To produce substantial amounts of damp and hot tail gas, the present invention can open induced-draught fan 3, the damp and hot tail that will produce in the first baking oven 1
Aspiration enters in the gas pipeline 21 in the second baking oven 2 so that a large amount of damp and hot tail gas in the first baking oven 1 is complete
Enter in gas pipeline 21.And owing to sucking substantial amounts of damp and hot tail gas in gas pipeline 21, therefore will produce
Substantial amounts of heat so that the Folium Camelliae sinensis in the second baking oven 2 and gas pipeline 21 will occur heat exchange, thus realize
Multiple drying to Folium Camelliae sinensis is dry, and when multiple drying is dry, damp and hot tail gas directly will not contact with Folium Camelliae sinensis, will not be to tea
The quality of leaf impacts.
In the present invention, the first baking oven 1 and the second baking oven 2 all have various structures form, as in figure 2 it is shown, this
In invention, the first baking oven 1 is turnover plate type baking oven, and charging aperture and the discharging opening of the first baking oven 1 lay respectively at first
The upper and lower of baking oven 1, air inlet 11 is positioned at and the bottom of the first baking oven 1 charging aperture opposite side, joint
Can also include by type tea drier:
Feed pipe 4, is connected with the charging aperture of the first baking oven 1,
Ajutage 5, one end of ajutage 5 is connected with the air inlet of the first baking oven, the other end and an air stove
The exhaust outlet of 51 is connected；；
It is equipped with even leaf device 6 at the charging port of feed pipe 4 and the charging aperture of the second baking oven 2.
In the present invention, the second baking oven 2 can be polytype baking oven, and in present embodiment, the second baking oven 2 is
Turnover plate type baking oven, the charging aperture of the second baking oven 2 and discharging opening lay respectively at the upper and lower of the second baking oven 2,
Being provided with multilamellar crawler belt panel turnover mechanism 22 in second baking oven 2, gas pipeline 21 is roundabout is wound on each layer crawler belt turnover panel
Between mechanism 22.
When first baking oven 1 of the present invention is turnover plate type baking oven, turn over owing to being provided with multilamellar crawler belt in turnover plate type baking oven
Trigger structure, when Folium Camelliae sinensis is after charging aperture enters, first falls on the crawler belt panel turnover mechanism of the superiors, now
Turnover panel plays the effect accepting Folium Camelliae sinensis, after Folium Camelliae sinensis moves to the end of crawler belt panel turnover mechanism with the motion of crawler belt,
Folium Camelliae sinensis will be fallen on next layer of crawler belt panel turnover mechanism, and turnover panel now forwards to below sprocket wheel the most therewith, at weight
Under power effect, turnover panel is only hung in base band by hinged end, and beneficially hot blast passes through.Folium Camelliae sinensis is carried out through multilamellar
After band panel turnover mechanism, finally discharge via discharging opening.
First baking oven 1 discharging opening Folium Camelliae sinensis out, is transported in the second baking oven 2, and the present invention dries second
When case 2 is set to turnover plate type baking oven, Folium Camelliae sinensis operation principle in the second baking oven 2 is shown in above-mentioned, for the ease of
There is effective heat exchange with Folium Camelliae sinensis in gas pipeline 21, the present invention is wound on each layer by roundabout for gas pipeline 21
Between crawler belt panel turnover mechanism 22, the damp and hot tail gas in gas pipeline 21 will enter gas in the first baking oven 1
In pipeline 21, then under the suction of induced-draught fan 3, damp and hot tail gas is roundabout along gas pipeline 21
Flowing in direction, is covered with in gas pipeline 21, and gas pipeline 21 is roundabout is wound on each layer crawler belt panel turnover machine
Between structure 22 so that each layer crawler belt panel turnover mechanism 22 is all corresponding with the position of gas pipeline 21 so that each layer
There is uniform heat exchange in the Folium Camelliae sinensis on crawler belt panel turnover mechanism 22 and gas pipeline 21 so that tea-drying is equal
Even.
The mode that in the present invention, gas pipeline 21 is roundabout has multiple, and the first of gas pipeline 21 of the present invention is real
Execute mode, as in figure 2 it is shown, gas pipeline 21 includes that many are arranged in the second baking oven 2 outer wall in the present embodiment
Vertical pipeline 211 and the many horizontal pipes 212 being arranged within the second baking oven 2, adjacent two erect
It is provided with a horizontal pipe 212 between straight pipeline 211, is provided with one between adjacent horizontal pipe 212 vertically
Pipeline 211, crawler belt panel turnover mechanism 22 is in and is surrounded by two horizontal pipes 212 and a vertical pipeline 211
Space in.
When the damp and hot tail gas in the first baking oven 1 is discharged, then damp and hot tail gas will from vertical pipeline 211 with
The connectivity part of the first baking oven 1 enters in vertical pipeline 211, and entering the damp and hot tail gas in vertical pipeline 211 will
Under the suction of induced-draught fan 3, damp and hot tail gas overcomes resistance so that damp and hot tail gas can be along horizontal tube
Road 212 flows, and is evenly arranged in horizontal pipe 212.
The second embodiment of gas pipeline 21 of the present invention, as it is shown on figure 3, this kind of embodiment is with above-mentioned
The difference of embodiment is, in present embodiment, gas pipeline 21 is the most roundabout is wound on the second baking oven
2 is internal, and compared with the second embodiment, the first embodiment takies the space within the second baking oven 2 relatively
Few, save the second baking oven 2 inner space.
The present invention can be according to the quantity of baking oven size design gas pipeline 21 and version, gas pipeline 21
Can have many groups, gas pipeline 21 is many groups, and many group gas pipelines 21 are the most parallel to be arranged.In the present invention
Gas pipeline 21 can be multiple, and multiple gas pipelines 21 are the most parallel to be arranged, the cross section of gas pipeline 21
Rounded, rectangle or square.Generally, the cross section of gas pipeline 21 is rectangle, by rectangular tube face
Long-pending maximum surface is positioned opposite with crawler belt panel turnover mechanism layer surface, so so that crawler belt panel turnover mechanism 22
On the heat exchange area of Folium Camelliae sinensis and gas pipeline 21 relatively big, the beneficially rapid draing of Folium Camelliae sinensis.
As shown in Figure 1, Figure 2 and Figure 3, auxiliary point wind mechanism it is provided with between the first baking oven 1 and the second baking oven 2
7, auxiliary point wind mechanism 7 includes:
Guide duct 71, the axial direction of guide duct 71 is provided with multiple respectively and between multiple crawler belt panel turnover mechanism
The connection joint 711 of position correspondence connection；
Dividing airduct 72, two ports of point airduct 72 are connected with ajutage 5 and guide duct 71 respectively.
If the temperature of gas pipeline is relatively low, the present invention can be by auxiliary point wind mechanism 7 in gas pipeline 21
Thering is provided hot blast, the present invention connects one point of airduct 72 on ajutage 5, and the part hot blast in ajutage 5 can divide
Flowing in point airduct 72, the hot blast in point airduct 72 is transferred to guide duct 71 again, finally via connection joint
711 are transferred in the second baking oven 2.
Enter in point airduct 72 for the ease of the hot blast in ajutage 5, generally, point airduct 72 court
Tilting to the Way out of ajutage 5, point airduct 72 is provided with regulation valve 8 with the connectivity part of ajutage 5.By
Hot blast in ajutage 5 flows towards Way out, and a point airduct 72 inclines towards ajutage 5 Way out
Time tiltedly so that the import direction of point airduct 72 is maintained at same orientation with the flow direction of hot blast, works as ajutage
Time in hot blast entrance point airduct in 5, suffered resistance is less, it is not necessary to exogenous power can enter a point airduct
In 72.There is very important impact at the inclination angle of point airduct 72 for the flow velocity of hot blast, point wind in the present invention
When the inclination angle of pipe 72 is 30～60 degree, point wind effect is preferable.
As shown in Figures 2 and 3, when proper temperature in gas pipeline 21, now need not from a point airduct
Supply hot blast in 72, in order to reduce the loss of the energy, the present invention is in the connectivity part of point airduct 72 with ajutage 5
Be provided with regulation valve 8, when needs in point airduct 72 to supply hot blast in gas pipeline 21 time, open regulation valve
8, and can be by regulating the uninterrupted of valve 8 scalable hot blast；When need not in point airduct 72
When supplying hot blast in gas pipeline 21, close regulation valve 8.
Above-mentioned tea drier dries the method for Folium Camelliae sinensis, comprises the following steps:
First, when the first baking oven 1 and the second baking oven 2 are preheated, open every air door 12, air stove 51
The hot blast discharged enters in the first baking oven 1 via ajutage 5, and the part hot blast in the first baking oven 1 is via Jie
Matter passage 14 enters in the second baking oven 2, is passed through hot blast and preheats in the first baking oven 1 and the second baking oven 2,
Preheat complete after, close every air door 12；
Second, stop being passed through hot blast in the second baking oven 2, continue continuously to lead in the first baking oven 1
Enter hot blast, and carry out just drying in Folium Camelliae sinensis is delivered to the first baking oven 1 via the charging aperture of the first baking oven 1, its
Middle hot blast temperature is 120～140 DEG C, after drying 20～40min, obtains half-dried tea；
3rd, open induced-draught fan 3 so that the damp and hot tail gas produced when just drying enters the via medium channel 14
In heat transfer pipe 21 in two baking ovens 2, enter in the damp and hot tail gas in heat transfer pipe 21 and the second baking oven 2
Chamber completely cuts off, and is then discharged from the discharging opening of the first baking oven 1 by half-dried tea, stops carrying in the first baking oven 1
Hot blast；
4th, after half-dried tea is all discharged via the discharging opening of the first baking oven 1, stop to the first baking oven 1
While interior heat air delivery, open every air door so that in the first baking oven 1, the hot blast of residual is via medium channel
14 enter in the second baking oven 2.After the cooling of half-dried tea, half-dried tea is defeated via the charging aperture of the second baking oven 2
Carry out drying multiple baking in delivering to the second baking oven 2, the half-dried tea in the second baking oven 2 by with heat transfer pipe 21
Heat exchange carries out drying multiple baking, directly can carry out contacting with the hot blast of residual in the first baking oven 1 simultaneously and do
Dry, the temperature in the second baking oven is generally 80～100 DEG C, if the temperature of 2 needs to adjust in the second baking oven,
Hot blast can also be passed through in the second baking oven 2 by auxiliary point wind mechanism, after drying 30～40min the most again,
Dry multiple baking and obtain dry tea.
When Folium Camelliae sinensis carries out just drying in the present invention, the mode of hot air drying is used Folium Camelliae sinensis to be dried, when at the beginning of Folium Camelliae sinensis
Drying complete, when carrying out multiple baking, use the mode dried, temperature is low when relatively just drying.The present invention is by using
Thermal source when the damp and hot tail gas of residual dries again as Folium Camelliae sinensis in baking oven during tea primary drying, is passed through biography by damp and hot tail gas
In hot channel 21, carry out heat exchange by heat transfer pipe 21 and half-dried tea, the Folium Camelliae sinensis in the first baking oven 1
After all discharging, stopping heat air delivery in the first baking oven 1, Folium Camelliae sinensis carries out multiple baking in the second baking oven 2
Time, by being dried with the form of heat transfer pipe 21 heat exchange, owing to directly not contacting with damp and hot tail gas,
While the present invention reuses damp and hot tail gas, do not interfere with the quality of Folium Camelliae sinensis.The present invention bakees again at Folium Camelliae sinensis
Time dry, after half-dried tea all discharges the first baking oven 1, the damp and hot tail gas in the first baking oven 1 the most all enters
Enter in heat transfer pipe 21, now can also open every air door, by the hot blast of residual in the first baking oven 1 via Jie
Matter passage 14 is delivered in the second baking oven 2 so that Folium Camelliae sinensis is directly dried by the hot blast of residual, therefore originally
Invention, can be to use and heat transfer pipe 21 carries out the form of heat exchange and carries out when Folium Camelliae sinensis carrying out multiple baking and doing
Dry, it would however also be possible to employ while heat transfer pipe 21 heat exchange method, the mode of additional hot air drying.
Claims (10)
1. an energy-saving tea drier, including the first baking oven (1), described first baking oven (1) sets
There is the air inlet (11) that hot wind supply enters, it is characterised in that also include induced-draught fan (3) and be stacked and placed on
Second baking oven (2) at one baking oven (1) top, is provided with least one set heat-transfer pipe in described second baking oven (2)
Road (21), the medium in heat transfer pipe (21) and the isolation of the second baking oven (2) inner chamber, described heat transfer pipe
(21) inner space of one end and the first baking oven (1), the other end of heat transfer pipe (21) extends to the
Two baking ovens (2) inner chamber and the inlet scoop with induced-draught fan (3) are connected.
Energy-saving tea drier the most as claimed in claim 1, it is characterised in that the first baking oven (1)
With second be provided with interior for by the first baking oven (1) and the second baking oven (2) of least one set between baking oven (2)
The medium channel (14) that chamber is connected, the connectivity part of medium channel and the first baking oven (1) is provided with every air door (12).
Energy-saving tea drier the most as claimed in claim 1, it is characterised in that described first baking oven (1)
For turnover plate type baking oven, charging aperture and the discharging opening of described first baking oven (1) lay respectively at the first baking oven (1)
Upper and lower, described air inlet (11) is positioned at and the bottom of the first baking oven (1) charging aperture opposite side,
Described energy-saving tea drier also includes:
Feed pipe (4), is connected with the charging aperture of the first baking oven (1),
Ajutage (5), one end of ajutage is connected with the air inlet of the first baking oven (1), the other end with
The exhaust outlet of one air stove (51) is connected.
Energy-saving tea drier the most as claimed in claim 3, it is characterised in that described second baking oven (2)
For turnover plate type baking oven, charging aperture and the discharging opening of described second baking oven (2) lay respectively at the second baking oven (2)
Upper and lower, be provided with multilamellar crawler belt panel turnover mechanism (22), described gas in described second baking oven (1)
Pipeline (21) is roundabout to be wound between each layer crawler belt panel turnover mechanism (22).
Energy-saving tea drier the most as claimed in claim 4, it is characterised in that described gas pipeline (21)
It is arranged in the second baking including the many vertical pipelines (211) being arranged in the second baking oven (2) outer wall and many
The horizontal pipe (212) that case (2) is internal, is provided with a water between two adjacent vertical pipelines (211)
Flat pipeline (212), is provided with a vertical pipeline (211) between adjacent horizontal pipe (212), described
Crawler belt panel turnover mechanism (22) is in and is surrounded by two horizontal pipes (212) and a vertical pipeline (211)
Space in.
6. Folium Camelliae sinensis energy-saving dryer as claimed in claim 5, it is characterised in that described gas pipeline (21)
For many groups, organize the most parallel layout of gas pipeline (21) more.
7. utilize the method that the arbitrary described energy-saving tea drier of claim 1～6 dries Folium Camelliae sinensis,
It is characterized in that, comprise the following steps:
First, in the first baking oven (1) and the second baking oven (2), it is passed through hot blast preheats；
Second, stop being passed through hot blast in the second baking oven (2), continue in the first baking oven (1) successive
Be passed through hot blast, and enter in Folium Camelliae sinensis is delivered to the first baking oven (1) via the charging aperture of the first baking oven (1)
Row just dries, and wherein hot blast temperature is 120～140 DEG C, after drying 20～40min, obtains half-dried tea；
3rd, open induced-draught fan (3) so that the damp and hot tail gas produced when just drying will enter the second baking oven (2)
In interior heat transfer pipe (21), enter in the damp and hot tail gas in heat transfer pipe (21) and the second baking oven (2)
Chamber completely cuts off, and is then discharged from the discharging opening of the first baking oven (1) by half-dried tea, stops to the first baking oven (1)
Interior heat air delivery；
4th, after the cooling of half-dried tea, half-dried tea is delivered to second via the charging aperture of the second baking oven (2)
Carry out drying multiple baking in baking oven (2), the half-dried tea in the second baking oven (2) by with heat transfer pipe (21)
Occur heat exchange to carry out drying multiple baking, dry multiple baking and obtain dry tea.
8. the method that Folium Camelliae sinensis energy-saving dryer as claimed in claim 7 dries Folium Camelliae sinensis, it is characterised in that
When first baking oven (1) and the second baking oven (2) are preheated, open every air door (12), air stove (51)
The hot blast discharged enters in the first baking oven (1) via ajutage (5), the part heat in the first baking oven (1)
Wind enters in the second baking oven (2) via medium channel (14)；Preheat complete after, close every air door (12).
9. the method that Folium Camelliae sinensis energy-saving dryer as claimed in claim 8 dries Folium Camelliae sinensis, it is characterised in that
After half-dried tea is all discharged via the discharging opening of the first baking oven (1), stop in the first baking oven (1)
While heat air delivery, open every air door (12) so that in the first baking oven (1), the hot blast of residual is via Jie
Matter passage (14) enters in the second baking oven (2).
10. the method that Folium Camelliae sinensis energy-saving dryer as claimed in claim 9 dries Folium Camelliae sinensis, it is characterised in that
Temperature in second baking oven is 80～100 DEG C, and the time of drying again is 30～40min.
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| CN105831296B (en) | 2023-03-24 |
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