CN104738220B - The instant drawing method that makes moist of spraying of compacting pressing Pu'er cooked tea - Google Patents

Abstract

The invention discloses a kind of instant drawing methods that makes moist of spraying of compacting pressing Pu'er cooked tea, including tealeaves siccative is carried out tidewater, steam softening, compacting and bakes process, the hot water that temperature is 60-80 DEG C is sprayed to the tealeaves siccative upper surface steamed in tea bucket by tidewater process by automated spray tidewater device in mist, without impregnation process, steam softening is carried out after tidewater immediately 5-6 seconds or carries out spraying while steam softens to make moist, pressed baking time is shorten to 3 hours.The technique substantially reduces the production cycle, and process time shortens 50%-80%, and production process is controllable, and product quality, the stability of different batches are consistent, and product safety health complies with standard the requirement of metaplasia production；Meanwhile product also maintains the quality of Pu'er tea.Production cycle shortening of the invention, cost reduction, efficiency improve, processing technology specification, easy to operate, can be widely used in scale and the standardization production of compacting pressing Pu'er cooked tea.

Description

The instant drawing method that makes moist of spraying of compacting pressing Pu'er cooked tea

Technical field

The invention belongs to the forming processing technology fields that ripe tea is pressed in Pu'er, more particularly to a kind of compacting pressing Pu'er cooked tea " immediately spraying make moist compacting " technique, mainly for the improvement to tidewater process in compacting pressing Pu'er cooked tea preparation process.

Background technology

As the good healthcare function of Pu'er tea and reserve value are constantly recognized and received by consumer, Pu'er tea is gradual to be obtained To the favor of domestic and international consumer, output has also obtained quick raising.2008, Pu'er tea yield was 5.28 ten thousand tons, accounts for cloud South saves the 31.1% of annual Tea Production total amount.In recent years, yunnan puer tea producing region made full use of Yunnan Tea area tea tree breed The advantages such as resourceful, ecological environment is superior, Pu'er tea process technology maturation, have developed a row Pu'er and press tea product, production Product are launched to domestic and international market, and liking and approving for consumers in general has been obtained.

Pu'er compressed tea is to meet the high-quality large leaf solar dried green tea in Yunnan by processing flows, first outputs such as pile-fermentations The Puer Bulk Tea of quality requirements, then carry out tidewater, infiltration and steam softening after, be pressed into agglomerate tea of different shapes.Pu'er is tight Pressure tea is formed by Puer Bulk Tea through autoclave at high temperature is moulding, and shape is rectified, elastic appropriateness, there is the Tuo tea in bowl mortar shape, rectangular Pu'er compressed tea of brick tea, the square tea of square, the tea cake of patty, cordate tight tea and other special appearance.Pu'er is tight It presses tea shape neat, spills face and uniformly show milli, color and luster is glossy, has mellow time Chen Xiang strong persistently, soup look glow, flavour sweet, leaf The reddish brown qualitative characteristics in bottom.Under suitable storage condition, the quality characteristic with more Chen Yue perfume.

Though Pu'er compressed tea shape has evolved into diversification, compressed tea continues to use always following traditional work in process of production Skill flow, i.e.,：First tidewater, infiltration, then compression moulding is matched, it finally bakes, pack（《Crop Diseases in Yunnan science and technology》01st phase in 2011 Author：Gu Honghui）, technological process is as shown in Figure 1, wherein：

Tidewater is also known as sprinkled water, it is therefore an objective to be promoted Pu'er cooked tea to suppress tight knot, be promoted soup look, make flavour Hui Tian；Tidewater quantity It is how many to want adaptation to local conditions, depending on air humidity size, water 4-8%, dry day is added to add water 6-10% as Menhai rainy season, sprinkled water Accumulation infiltration 4 hours or more after mixing thoroughly, you can pay system.Raw material after tidewater cannot have deterioration, cannot generate the sour taste of black mould, acid Deng；Followed by increase even heap feed moisture content, tea item is made to soften, prevent tealeaves broken in compacting, when tidewater should be according to tealeaves Always tender to consider tidewater, rainy season cuts down according to the circumstance.Tidewater average moisture content, which is 13-17% or so, to be advisable.Using should not be stood after this tidewater That is steam pressure, otherwise tealeaves may due to being not wetted by the time, and cause the product that the raw material at each position suppresses moisture content, Net content etc. causes larger difference.Meanwhile it being not wetted by the time, the product of compacting is in the side such as cake type, appearance, elasticity Particular requirement is not achieved in face.

The position of damp hypervolia, pressed ripe cake baking time is long, tealeaves yellow maturity, and fragrance reduces.Tidewater amount is not Uniformly, it is uneven to be easy to cause baking, goes mouldy so as to cause portioned product.Tidewater amount is very little, and the food value of leaf is not easy to soften, and molding is more Difficulty, easy tos produce that scarce side, surface portion position is loose, phenomena such as falling off.

The main purpose of ripe tea tidewater, be for that can promote to have better cohesiveness between tealeaves bar rope in compression moulding, The aesthetics of the degree of packing and cake face in cake face after guarantee tea-leaf forming, is convenient for the transport and storage in later stage, but the above traditional handicraft, The factors such as long and many technological parameters are uncontrollable are taken with production, it is specific as follows：

1. tidewater process human factor is affected, rule of thumb tidewater has individual difference to employee, and tidewater amount is uncontrollable, And tidewater is uneven, each region moisture content deviation of heap is big；

2. infiltrating time is longer after watering, infiltration is put about 4 hours or more, seriously delays manufacturing schedule, extends life It produces the period, and since impregnation process moisture such as volatilizees at the factors naturally, causes moisture uncontrollable；

3. after ripe tea tidewater compacting, due to moisture height, baking time is up to 13 hours, bakes excessive cycle, is occupied Drying chamber resource and energy consumption are serious；

4. hand labor intensity is larger, technological process is cumbersome, is not easy to realize online production etc..

However, though prevailing technology of the above processing technology for current Pu'er compressed tea, even entire by numerous manufacturers Pu'er tea circle is adopted, is applied.But many drawbacks existing for the technique seriously affect and restrict the expansion of Pu'er tea yield：

1. labor intensity is big：Tidewater process need it is artificial turning on one side sprinkle water while, mixing.

2. human factor is larger, tidewater is uneven：Tidewater process is extremely difficult to uniform tidewater, and main cause has：

（1）Human factor is larger in the control of water when watering；

（2）It is difficult to ensure that the tealeaves at each position reaches consistency when turning, mixing；

（3）It in impregnation process, is influenced by ambient wind velocity, temperature, humidity etc., causes each portion in impregnation process The windage of position Measuring Moisture Content of Tea differs, so that making a difference in subsequent title tea, baking, net content etc., some are aqueous Larger tealeaves is measured after making product and putting goods on the market, extremely easy generation is gone mouldy.

3. food hygiene and safety degree is not high：Currently, Pu'er cooked tea is before compression moulding, due to needing tidewater, infiltration, and The mechanization difficult to realize of this two procedures, therefore essentially manual operation is completed, food hygiene and safety standard hardly results in as a result, It ensures.

4. process takes longer：After ripe tea tidewater, being required to, which makes it infiltrate naturally 4 hours or more, to be pressed into Type not only extends the process-cycle of compressed tea, but also largely occupies factory resource, increases production cost.

5. cannot achieve online production：With the good development of Pu'er compressed tea yield being continuously increased with market, each life Producer is produced in order to save labor cost, increases production efficiency, in industrialization, the mechanization production pattern for carrying out oneself, but Since there are 4 hours or more infiltrating times after tidewater for Pu'er cooked tea, therefore online production is cannot achieve, becomes pipelining Maximum bottleneck.

6. after ripe tea tidewater compacting, due to moisture height, baking time is up to 13 hours, bakes excessive cycle, is occupied Drying chamber resource, and energy consumption is serious.

It can be seen that existing compacting pressing Pu'er cooked tea needs to improve in the production of pressing molding procedure, processing technology there are many Place.

Invention content

In view of the above compacting pressing Pu'er cooked tea many drawbacks present in traditional tidewater technique, the purpose of the present invention is carry For a kind of instant drawing method that makes moist of spraying producing time-consuming compacting pressing Pu'er cooked tea short, technological parameter is controllable.

The instant drawing method that makes moist of spraying of compacting pressing Pu'er cooked tea provided by the present invention, it may include following steps：

A kind of instant drawing method that makes moist of spraying of compacting pressing Pu'er cooked tea, including compacting pressing Pu'er cooked tea raw material is matched The tealeaves siccative of system carries out tidewater, steam softening, compacting and bakes process, and in the present invention, the tidewater process is sprayed by automation Mist tidewater device is completed, and the hot water that temperature is 60-80 DEG C is sprayed to the tealeaves siccative upper surface steamed in tea bucket, sprinkling in mist Amount is the 1%-3% of tealeaves siccative quality, without the impregnation process after tidewater, even will be steamed simultaneously with tidewater process after tidewater process Tea bucket carries out steam and softens 5-6 seconds, and the water content of tealeaves is not higher than 10wt%, pressed baking time after control steam softening No more than 5 hours.

The instant spraying of the compacting pressing Pu'er cooked tea is made moist in drawing method, and hot water is sprayed by spray nozzle device in misty Spray rate be less than 30Kg/h, preferably water/5 second 8-12g, spraying time is no more than 8s, and mist particle diameter size is 20-100 μ m.Steam softening refers to steaming tea bucket and steaming at 110-116 DEG C to be softened by steam on Tea Service.

Specifically, the instant spraying of the compacting pressing Pu'er cooked tea is made moist, drawing method includes the following steps：

1）Stock：It is ready to prepare the required raw material of compacting pressing Pu'er cooked tea, that is, spreads three kinds of point, core tea or lid tea differences The tealeaves siccative of model；

2）Assorted barrelling：As needed, the tealeaves siccative of different model is fitted by product design requirement and is steamed in tea bucket；

3）Fly in being placed to the tealeaves siccative upper surface for steaming tea bucket；

4）Spraying tidewater：Hot water is sprayed onto in 8s in mist to the tealeaves siccative upper surface steamed in tea bucket；

5）Steam tea：With i.e. by step 4）Treated, and steaming tea bucket is placed on steaming Tea Service, is steamed at 110-116 DEG C 5-6 seconds, Control water content of tea is 7wt%；

6）Type is made in pack：The tealeaves for steaming steamed in tea caddy is put into cloth bag or mold, is manually rubbed the tealeaves in cloth bag At required shape（Such as cheese, brick shape, a small bay in a river shape）；

7）Compression moulding：By equipped with tealeaves cloth bag or mold be placed on pressure tea machine on be pressed；

8）It is dried in spreading for cooling, solution bag：By the pressed tea after compression moulding under refrigeration fan or natural conditions spreading for cooling about 10-20 Minute, then by hand release sack；

9）It bakes：Pressed tea is baked in 40-80 DEG C of drying chamber, the time is 3 hours, and it is ripe to obtain compacting pressing Pu'er Tea.

It can also be by step 4）With 5）Operation simultaneously — that is, tide steam：Tea bucket will be steamed and be placed on and steamed on Tea Service, according to quantity by hot water The tealeaves siccative upper surface steamed in tea bucket is sprayed onto in mist in 8s, while steaming tea bucket and being steamed at 110-116 DEG C.

In approach described above, step 2）In spread point, core tea, lid tea can be by quality with 15：43：42 ratio assembles.

Step 4）In spraying tidewater process completed by automated spray tidewater device, automated spray tidewater device includes Constant temperature control water unit, compressed air supply unit, nozzle unit and central control unit, it is constant that constant temperature control water unit provides temperature Temperature and the constant hot water in 3bar of pressure one of within the scope of 60 DEG C -80 DEG C, it is permanent that compressed air supply unit provides pressure The compressed air of 7bar is positioned, hot water and compressed air mix in nozzle unit, and mixing aqueous vapor is controlled by central control unit Ejection forms the i.e. described tidewater of spray water.

Step 5）It steams tea process to complete using existing steaming tea equipment, jet chimney installs solenoid valve for steam additional.Tide is shortly In steaming mode, which connect with the central control unit in automated spray tidewater device.

The instant spraying of compacting pressing Pu'er cooked tea is made moist in drawing method each component in automated spray tidewater device used For：

The constant temperature control water unit includes water source, water tank, thermostat, filter, pressue device and aqueduct, water source It is connected to water tank after the filter, water tank maintains water temperature at 60 DEG C -80 DEG C under the control of thermostat, and water tank is discharged in pipeline Constant pressure 3bar is boosted under the action of booster pump, enters nozzle unit by aqueduct；

The compressed air supply unit includes air-source, pressue device, air source processing two element and gas pipeline, air Source is provided by air compressor machine, and the compressed air of constant pressure 7bar is obtained by pressue device, then is connect air source processing two element and passed through defeated Feed channel is connected to nozzle unit；Air source processing two element by filter and reducer unit at；

The nozzle unit includes nozzle, flow control valve, pressure gauge and conveyance conduit, and flow control valve and pressure gauge are pacified On conveyance conduit, conveyance conduit end terminating nozzles；The nozzle unit is one or more；

The central control unit includes nozzle solenoid valve and electromagnetic valve of gas circuit, is separately mounted to aqueduct and appendix On road.

In above-mentioned automated spray tidewater device, spray amount is set according to different tea product, and combines pressure tea equipment Wire body disposably single nozzle or more nozzles can concentrate atomized water spray, reach Measuring Moisture Content of Tea content requirement, also decomposable asymmetric choice net single nozzle is interrupted Property multiple atomized water spray do not influence the normal operating for steaming link with auto instrument automatic needle press precise coordination, ensure tidewater, steam tea step with It produces wire body to synchronize, while coordinating automation pressure tea equipment, realize the assembly line compacting production of compacting pressing Pu'er cooked tea, and device It is easily assembled, dismantles and moves.

The present invention provides a kind of instant sprayings producing time-consuming compacting pressing Pu'er cooked tea short, technological parameter is controllable to make moist Drawing method.The method of the present invention compared with conventional method, have product quality is more stable, process time shortens 50%-80%, Production cost reduction, efficiency raising, processing technology specification, advantage easy to operate, can be widely used in compacting pressing Pu'er cooked tea Scale and standardization production.The present invention has the following advantages：

1. alleviate labor intensity, banned in conventional machining process on one side sprinkle water, while turning the process of mixing；

2. otherness caused by eliminating traditional tidewater improves the uniformity of tidewater, tidewater manual intervention degree is reduced, Banned infiltrating time, when avoiding infiltration caused by environment temperature, humidity, demeanour etc. the non-uniform situation of moisture loss, Improve the moisture content consistency of same batch Pu'er compressed tea.

3. improving food hygiene and safety：New technological flow and technical solution change the mode of traditional tidewater, keep away completely Artificial directly operation is exempted from, to keep food hygiene and safety more secure.

4. shortening, having banned infiltrating time, the process-cycle of Pu'er compressed tea is shortened, the occupancy of workshop resource is reduced Rate.

5. tidewater can be steamed to the water content control of tealeaves after tea in reduced levels（No more than 10wt%）, do not reducing tradition Under the premise of handicraft product quality, baking time is shortened to 3-5 hours/batches.

6. realizing the pipelining pattern of automation, mechanization, labor intensity is reduced, productivity effect is increased, Production process, process, product form, the product quality of Pu'er compressed tea is set to have reached consistency and standardization.

The present invention is described in further details with reference to specific embodiment.

Description of the drawings

Fig. 1 is the traditional processing technology flow of Pu'er compressed tea

Fig. 2 is the technological process of production of Pu'er compressed tea of the present invention

Fig. 3 is a kind of structural schematic diagram of tealeaves spraying tidewater device in Pu'er compact tea production technology of the present invention

Specific implementation mode

It comes with some shortcomings in traditional tidewater technique in view of compacting pressing Pu'er cooked tea, for that can release or reduce traditional handicraft Middle manual intervention degree, to realize that mechanization or automation manipulation, the present inventor to tidewater technique break through normal The exploration of rule, by designing and implementing " experiment of warm water tidewater ", " experiment of sealed steam humidification " and " the wet softening of high temperature speed is tested ", Compacting pressing Pu'er cooked tea different phase and in different ways carry out tidewater technique further investigation, eventually by compare, Analysis and adjustment, it is determined that the technical solution based on " the wet softening experiment of high temperature speed ", this solution simplifies compacting pressing Pu'er cooked teas Tidewater technique, compacting pressing Pu'er cooked tea " i.e. tide i.e. press " is become a reality, while can also to meet classical compacting pressing general for product The flavor and quality of the ripe tea of Pu'er tea.

Below with embodiment the present invention will be described in detail technical solution.Embodiment under based on the technical solution of the present invention into Row implement, give detailed embodiment and specific operating process, will be helpful to understand the present invention, but the present invention Protection domain is not limited to following embodiments.

Capital equipment used such as steams tea bucket, steams Tea Service, pressure tea machine, drying equipment, skill commercially available or according to routine It is prepared by art and method.

The unit that may be contacted with tealeaves in equipment need to ensure the requirement for meeting food hygiene and safety with material.

Production environment and operating process are configured and operate according to food hygiene regulation.

The instant drawing method that makes moist of spraying of embodiment, compacting pressing Pu'er cooked tea

Referring to Fig. 2 shows the instant spraying of compacting pressing Pu'er cooked tea make moist compacting（" i.e. tide is pressed "）Flow includes Following steps（Listed serial number distinguishes step for convenience, not natural representative's operation order）：

1）Stock：It is ready to prepare the required raw material of compacting pressing Pu'er cooked tea（Or tealeaves, dry tea, tealeaves siccative）. Tealeaves siccative for Pu'er cooked tea is divided into there are three types of different model and spreads point, core tea and lid tea（Lid tea is divided into shuttle brick tea, cover Tea and spread bottom tea）, tealeaves siccative can select on demand, and the present embodiment only provides a kind of example, and present invention process is not dry by tealeaves Expect the influence of variation.

2）Assorted barrelling：As needed（Mouthfeel, soup look, tea residue etc. as required by ripe tea finished product）, by different model Siccative spreads point, core tea, lid tea are fitted into steam in tea bucket from top to bottom in proportion, and ratio can match as needed, be in the present embodiment 15：43：42（Mass ratio）.For conventional 357g（Tealeaves siccative is identical as final product quality）The ripe tea cake in Pu'er, specific to each The dosage of different dry teas is respectively to spread sharp tea 53g, core tea 154g, spread bottom tea 50g, shuttle brick tea 50g, cover tea 50g.

3）Fly in placing：Fly in the placement of tealeaves siccative upper surface to steaming in tea bucket.Inside fly to be the band mark for meeting food standard The small pieces of the papery of knowledge or other quality are compressed on tea cake surface when tealeaves is suppressed together, the identity mark as this tea cake leaf Know, there is height anti-fake effect.

4）Spraying tidewater：The 10g hot water for being 60-80 DEG C by temperature（For 357g tea cakes）It is sprayed onto the Pu'er steamed in tea bucket On the upper surface of ripe tea siccative, spray rate is water/5 second 8-12g（Adapt to steam between the tea time preferably 10g water/5-6 seconds）, when sprinkling Between be 2-8 seconds（Adapt to steam between the tea time preferably 10g water/5-6 seconds）.The fountain height of the step hot water typically constitutes from tea cake siccative quality 1% -3%, the step can make upper surface tealeaves siccative uniformly, fully absorb moisture, in addition, tealeaves siccative upper surface is uniformly moistened It is wet, make moist, steam tea bucket inner wall and have a small amount of condensed water, spraying cannot tealeaves siccative, it is interior fly to blow, influence finished product tea cake appearance Quality；

5）Steam tea：The steaming tea bucket of tealeaves after making moist equipped with spraying is placed on and is steamed on Tea Service, 5- is steamed at 110-180 DEG C 6 seconds, which can be such that lower surface tealeaves softens；Water content of tea is to be no more than 10% in 7wt% or so after tea is steamed in this example control Preferably.

6）Type is made in pack：The tealeaves for steaming steamed in tea bucket is put into cloth bag, is manually kneaded into the tealeaves in cloth bag required Shape（Such as cheese, brick shape, a small bay in a river shape）；

7）Compression moulding：The tealeaves for carrying out shape is placed in pressure tea machine and is suppressed, during pressing tea, equipped with tealeaves Cloth bag should be placed on the middle of pressure tea machine mold, ensure that the cake type suppressed is neat, appearance is beautiful；

8）It is dried in spreading for cooling, solution bag：By the tealeaves suppressed under refrigeration fan or natural conditions spreading for cooling about 10-20 minutes, Sack is released for baking by hand again；

9）Lower baking：Pressed tea is carried in 40-80 DEG C of drying chamber and is baked, this example baking time is 3 hours, visually Water content of tea and baked temperature adjust baking time, typically not greater than 5 hours, obtain compacting pressing Pu'er cooked tea.

It makes moist in drawing method in the instant spraying of above-mentioned compacting pressing Pu'er cooked tea, steams tea after first tidewater can be taken, or Person is sprayed and is steamed（Tidewater is carried out at the same time with tea is steamed）Mode can reach identical effect of making moist, so that tealeaves is made moist uniformly, it is fast Speed softening, reaches the technological requirement of compacting link.

In the present invention, step 4）In spraying tidewater process can be completed by automated spray tidewater device.For example, can be used Automated spray tidewater device as shown in Figure 3.It is made of five structural units：Constant temperature control water unit, compressed air conveying Unit, nozzle unit, center（Equipment）Control unit and conveyance conduit（Line）, the structure and connection relation of each structural unit are such as Under：Constant temperature control water unit：Including water source, water tank, thermostat, filter, pressue device and aqueduct, wherein water source passes through It crosses filter and is followed by water tank, water tank maintains water temperature at 60 DEG C -80 DEG C under the control of thermostat, water tank（Constant temperature water tank）Go out Water is in pressue device（Pipeline supercharging pumps）Under the action of boost to constant pressure 3bar, enter nozzle unit by aqueduct, Final spray forms spray water.

Compressed air supply unit：Including air-source, pressue device, air source processing two element and gas pipeline, wherein empty Air source is provided by air compressor machine, and the compressed air of constant pressure 7bar is obtained by pressue device, then connects air source processing two element（At air source Two element is managed by filter and reducer unit at for being filtered to compressed air, pressure reducing valve is used for empty to compression filter Gas is depressurized）, and it is connected to nozzle unit by gas pipeline.

Nozzle unit：Including nozzle, flow control valve, pressure gauge and conveyance conduit, wherein flow control valve（For adjusting Save the flow of compressed air）And pressure gauge（For monitor air pressure, pressure should be in 5bar or more）It is installed in series in delivery pipe On road, conveyance conduit end terminating nozzles.Nozzle unit separately sets light eye（Photoinduction device）For incuding the position for steaming tea bucket, will feel Induction signal is transmitted to center（Equipment）Control unit.

The quantity of nozzle unit according to steam tea bucket diameter and tea amount set, each nozzle unit respectively and pressurization The humidification amount of aqueduct, the connection of compressed air gas pipeline, single-nozzle is less than 30Kg/h, and most preferably every five seconds for example clock sprays 8- 12g（It is preferred that 10g）Water, mist particle diameter size are 20-100 μm, it is desirable that jeting effect is good, and spray regime is sprayed using positive pressure, and The jetting height of nozzle can be adjusted.

Center（Equipment）Control unit：Including waterway electromagnetic valve（Nozzle solenoid valve）And electromagnetic valve of gas circuit, it is separately mounted to On aqueduct and gas pipeline, parallel relationship, the pressure of the water and constant pressure 7bar of -80 DEG C of constant pressure 3bar temperature 60 Cs are formed Contracting air is finally mixed in nozzle unit.Waterway electromagnetic valve（Nozzle solenoid valve）Liquid injection amount for accurately controlling nozzle, And can keep constant, and leaving water temperature control can be made to be 60-80 DEG C, it can arbitrarily be adjusted in this temperature range, precision+2 DEG C, it can displays temperature reading；Electromagnetic valve of gas circuit is used to accurately control the jet amount of nozzle, and can keep constant.

The automated spray tidewater device course of work：Constant temperature control water unit by the tidewater of constant temperature with water under pressure It is transported to nozzle unit, while compressed air is also transported to nozzle unit by compressed air supply unit under pressure, is added Pressure water and forced air converge at nozzle, and nozzle is sprayed in misty tidewater water, and in center（Equipment）Control unit Regulation and control under, the liquid injection amount and gas emitted dose of nozzle are adjustable.

In the present invention, step 5）It steams tea process and existing steaming tea equipment can be used, but the present invention is electric using steam to steam Magnet valve controls, that is, steams and open, stop after steaming, and it is consistent to reach every tea cake quantity of steam, realizes water content Precise control.It " is spraying That is under steaming " mode, which can be with step 4）Center in automated spray tidewater device used（Equipment）Control is single Member connection, realization automation control synchronous with spraying tidewater flow.

It is illustrated above with specific embodiment, the instant drawing method that makes moist of spraying of die mould Pu'er cooked tea proposed by the present invention, The process that control and time-consuming longer independent tidewater, infiltration are not easy in traditional handicraft is banned, instead controllable spraying tidewater Promote the fluency of ripe tea production to realize " i.e. tide is pressed " of ripe tea with steaming tea process, and improves the baking more than four times Efficiency processed, effects of energy saving and emission reduction is apparent, new process of the present invention（Fig. 2）With traditional handicraft（Fig. 1）Difference it is as follows：

1, the tealeaves siccative direct matching after even heap is packed into steaming kier, by tidewater and the steaming tea operation of spraying, eliminates original Independent tidewater, infiltration process, save nearly 4 hours tidewater infiltrating times, strong improves manufacturing schedule, promotes production capacity Promotion.

2, step 4）Spraying tidewater and step 5）Steaming tea（" hot water spray is made moist "）Link is present invention process difference Tea is steamed, or i.e. spray is steamed after can taking first tidewater according to the requirement of different category tealeaves in the key link of traditional handicraft （Tidewater is carried out at the same time with tea is steamed）Mode, so that tealeaves is made moist uniformly, it is rapid to soften, reach the technological requirement of compacting link, tool Body technology feature is as follows：

2.1 hot water spray to tealeaves upper surface in steaming kier, between 60-80 DEG C of water temperature, accelerate tealeaves using water temperature and inhale Wet softening ensures that tealeaves makes moist uniformly using mist；

2.2 combine spraying control system, reach constant temperature, timing, quantitative spraying automation control, make Measuring Moisture Content of Tea content Controllably, the consistency of tea processing moisture is ensured；

2.3 spray amounts are set according to different tea product, and combine pressure tea equipment wire body, can disposable single nozzle or more sprays Head（Nozzle）Atomized water spray is concentrated, reaches Measuring Moisture Content of Tea content requirement, also the multiple atomized water spray of decomposable asymmetric choice net single nozzle discontinuity, with flowing water Wire body precise coordination does not influence the normal operating for steaming link, ensures that tidewater, steaming tea step are synchronous with production wire body, matches simultaneously Automation pressure tea equipment is closed, realizes the assembly line compacting production of compacting pressing Pu'er cooked tea, and device is easily assembled, dismantles and moves；

The timing that the metered dose of 2.4 upper surfaces makes moist with lower surface steams softening and cooperates, and the entirety of tealeaves is made to contain For water rate control in critical field, the moisture deviation between each compressed tea individual is smaller, uniform convenient for baking, and moisture is main It is attached to compressed tea surface, heart tea（Tealeaves inside compressed tea）Partial moisture content is relatively low, this is also new process The compressed tea of production bakes efficient reason, this feature, is not only convenient for post storage, and reduce compressed tea go mouldy it is general Rate.

3, conventional steaming time is consistent with traditional handicraft, but steams control mode and change, and traditional handicraft steams process Steam is in normally open, is unfavorable for energy conservation and environmental protection, and steam uses solenoid valve control in new process, and same with spraying tidewater flow Automation control is walked, that is, steams and opens, stop after steaming, it is consistent to reach every tea cake quantity of steam, promotes water content Precise control.

4, pack makees type and continues to use conventional processes, but according to the improvement of production technology, " spraying is made moist " and " steaming " process can Coordinate with one-time-shaped mould, realizes the automation Production line of compacting link.

5, compacting, spreading for cooling and upper baking, it is consistent with traditional handicraft, it is both using hydraulic test compression moulding.

6, another big feature of new process is embodied in the efficiency for baking link and energy saving aspect, due to being made moist using spraying, Instead of original tidewater technique, the moisture of tealeaves is greatly reduced, water content of tea is left by original 21% before baking Bottom right drops to 7% or so, make baking link from original 13 it is small at present dry become 3 it is small dry at present, not only bake efficiency improve More than four times, and energy conservation and consumption reduction effects are apparent.

To with new process of the present invention（Fig. 2）With with traditional handicraft（Fig. 1）The compacting pressing Pu'er cooked tea product of preparation is examined It surveys：

Product is subjected to sensory evaluation according to GB/T2111-2008 and measures tea polyphenols, coarse-fibred content；According to GB/ T4789.3 and GB/T4789.21 is detected coliform, pathogenic bacteria；And carry out tea polysaccharide, theabrownin, theaflavin and tea The assay of red pigment.

As a result：Sensory evaluation：Bar rope is uniform, and color and luster is reddish brown uniformly, and soup look is red dense bright, and aromatic flavour, flavour is dense, leaf Bottom is reddish brown；Coliform and various pathogenic bacteria, tea polyphenols, crude fibre, tea polysaccharide, theabrownin, theaflavin and thearubigin is not detected Detection is up to standard.

In addition, the product to different batches is detected, as a result the quality, stability and homogeneity of finished product are consistent.It can See that production technology and manufacturing process of the present invention is fully controllable, product safety health complies with standard the requirement of metaplasia production.From technique Compare, process of the present invention not only substantially reduces the production cycle, due also to the drawbacks of reject manual operation（Such as individual difference band Unstability, sanitary condition for going out etc.）, stability, wholesomeness and the safety of tea product are greatly improved, is pressed with tradition Type Pu'er cooked tea produces incomparable advance and science.

Claims (5)

1. The drawing method 1. a kind of instant spraying of compacting pressing Pu'er cooked tea is made moist, including compacting pressing Pu'er cooked tea raw material is prepared Tealeaves siccative carry out tidewater, steam softening, compacting and bake process, it is characterised in that：The tidewater process is sprayed by automation Mist tidewater device is completed, and the hot water that temperature is 60-80 DEG C is sprayed to the tealeaves siccative upper surface steamed in tea bucket, sprinkling in mist Amount is the 1%-3% of tealeaves siccative quality；Without the impregnation process after tidewater, even simultaneously will with tidewater process after tidewater process It steams tea bucket and carries out steam softening 5-6 seconds, the water content of tealeaves is not higher than 10wt% after control steam softening；When pressed baking Between be no more than 5 hours；

   Hot water is less than 30Kg/h by spray nozzle device in the spray rate of misty sprinkling, and spraying time is no more than 8s, mist particle diameter Size is 20-100 μm；

   Include the following steps：

   1) it stocks up：It is ready to prepare the required raw material of compacting pressing Pu'er cooked tea, that is, spreads three kinds of point, core tea or lid tea different models Tealeaves siccative；

   2) assorted barrelling：As needed, the tealeaves siccative of different model is fitted by product design requirement and is steamed in tea bucket；

   3) fly in being placed to the tealeaves siccative upper surface for steaming tea bucket；

   4) spraying tidewater：Hot water is sprayed onto in 8s in mist to the tealeaves siccative upper surface steamed in tea bucket；

   5) tea is steamed：With i.e. by step 4) treated steam tea bucket be placed on steam Tea Service on, steamed at 110-116 DEG C 5-6 second, control The water content of tealeaves is 7wt%；

   6) type is made in pack：The tealeaves for steaming steamed in tea caddy is put into cloth bag or mold, the tealeaves in cloth bag is manually kneaded into institute Need shape；

   7) compression moulding：By equipped with tealeaves cloth bag or mold be placed on pressure tea machine on be pressed；

   8) spreading for cooling, solution bag on dry：By the pressed tea after compression moulding spreading for cooling 10-20 minutes under refrigeration fan or natural conditions, Sack is released by hand again；

   9) it bakes：Pressed tea is baked in 40-80 DEG C of drying chamber, the time is to obtain compacting pressing Pu'er cooked tea in 3 hours；

   Spraying tidewater process in the step 4) is completed by automated spray tidewater device, and automated spray tidewater device includes Constant temperature control water unit, compressed air supply unit, nozzle unit and central control unit, it is constant that constant temperature control water unit provides temperature Temperature and the constant hot water in 3bar of pressure one of within the scope of 60 DEG C -80 DEG C, it is permanent that compressed air supply unit provides pressure The compressed air of 7bar is positioned, hot water and compressed air mix in nozzle unit, and mixing aqueous vapor is controlled by central control unit Ejection forms the i.e. described tidewater of spray water.
2. 2. the instant drawing method that makes moist of spraying of compacting pressing Pu'er cooked tea according to claim 1, it is characterised in that：Hot water is logical It is 5.76-8.64Kg/h that spray nozzle device, which is crossed, in the spray rate of misty sprinkling.
3. 3. the instant drawing method that makes moist of spraying of compacting pressing Pu'er cooked tea according to claim 2, it is characterised in that：Steam is soft Change refers to steaming tea bucket and steaming at 110-116 DEG C to be softened by steam on Tea Service.
4. The drawing method 4. the instant spraying of compacting pressing Pu'er cooked tea according to claim 1 or 2 or 3 is made moist, feature exist In：Point, core tea, lid tea are spread in the step 2) by quality with 15：43：42 ratio assembles.
5. The drawing method 5. the instant spraying of compacting pressing Pu'er cooked tea according to claim 4 is made moist, it is characterised in that：It is described Spraying tidewater process in step 4) is completed by automated spray tidewater device, and automated spray tidewater device includes permanent temperature control water Unit, compressed air supply unit, nozzle unit and central control unit, constant temperature control water unit provide temperature it is constant 60 DEG C- Temperature and the constant hot water in 3bar of pressure one of within the scope of 80 DEG C, compressed air supply unit provide pressure constant position 7bar Compressed air, hot water and compressed air mix in nozzle unit, goes out to be formed by central control unit control mixing water gas blowout Spray water, that is, the tidewater.