CN205757056U

CN205757056U - A kind of device removing Caffeine from Tea

Info

Publication number: CN205757056U
Application number: CN201521141033.4U
Authority: CN
Inventors: 王黎明; 郭晓娜; 孙哲浩; 王春玲
Original assignee: China National Native Produce And Animal By-Products Import And Export Corp
Current assignee: China National Native Produce And Animal By-Products Import And Export Corp
Priority date: 2015-12-31
Filing date: 2015-12-31
Publication date: 2016-12-07
Anticipated expiration: 2025-12-31

Abstract

This utility model belongs to Tea Processing technical field, is specifically related to a kind of device removing Caffeine from Tea.Device described in the utility model, including removing unit and hot air drying unit, described removing unit is connected by conveyer belt with described drying unit, it is achieved the continuous treatment of Folium Camelliae sinensis.Device described in the utility model utilizes described spray equipment to carry out caffeine removing process in the way of heat water-spraying, compared with in the way of the equipment process removing caffeine in prior art by hot water extraction, the device of removing caffeine described in the utility model, contribute to further increasing the removal efficiency of caffeine, whole device is up to 85% for caffeine removing rate, effectively reduces Folium Camelliae sinensis to the stimulation of stomach and the impact on sleep；Meanwhile, Tea Polyphenols in Tea, catechin, amino acid whose retention rate are all more than 85%, less on the impact of Folium Camelliae sinensis organoleptic quality so that it is remain to keep the style of Chinese tradition Folium Camelliae sinensis.

Description

A kind of device removing Caffeine from Tea

Technical field

This utility model belongs to Tea Processing technical field, is specifically related to a kind of removing Caffeine from Tea Device.

Background technology

Along with fast development and the raising of living standards of the people of China's economy, the health care of people Consciousness constantly strengthens, and Folium Camelliae sinensis is as the most popular health promoting beverage, and its social need is the most gradually Develop to diversification direction.But, Folium Camelliae sinensis contains the caffeine of about 2%-5%, and studies and show less Amount takes in caffeine can play the effects such as stimulating central nervous system system, refreshment, promotion the intestines and stomach secretion, Heart beating then can be caused when but intake is more to overrun, have a sleepless night, the untoward reaction such as anxiety, especially The special populations such as child, climacteric women, anemia of pregnant woman, heart patient, patients w ith peptic ulcer disease, neurastheniac Too much caffeine should not be taken in.And current research shows, if the content of caffeine in Folium Camelliae sinensis is reduced to Less than 1%, above-mentioned drunk by people after then will not produce above-mentioned ill symptoms, therefore low caffeinum green tea is more Get over by consumers welcomed, also become child, anemia of pregnant woman, heart patient, neurastheniac etc. specific The preferable beverage of crowd.

The main method of processing Low caffeine tea is to use supercritical carbon dioxide extraction method at present, but by , technology expensive in supercritical equipment price requires that high limiting factor, only external minority enterprise give Using, more domestic general tea enterprise is then difficult to bear.And the side of some supercritical extraction existing Method needs to use certain organic solvent, there is more potential safety hazard.

Disclosing the preparation method of a kind of low caffeinum green tea in prior art, it mainly uses heat Water extract method makes low caffeinum green tea, specifically includes: fresh leaf spreads → Hot water immersion → centrifuge dehydration The steps such as → hot-air dewatering → knead → dry → refined processing.The principle of the method is, in Folium Camelliae sinensis Caffeine is soluble in the hot water of more than 80 DEG C especially, and this allows for caffeine energy under hot water extraction processes Enough Fast Strippings, and the quality components such as other the tea polyphenols contained in Folium Camelliae sinensis, tea polysaccharide, aminoacid Dissolution rate the slowest, can preferably be retained.The method can make Caffeine from Tea Removal efficiency reaches 50%-70%, the content of caffeine of obtained low caffeinum green tea be smaller than 1.0% with Under, polyphenol content is then more than 18%, and other effective ingredient also can retain about 85%；And preparation Process without any organic solvent, it is ensured that become the food safety sampled tea.But, this technique is adopted By the mode of hot water extraction, the on the one hand large usage quantity of hot water, cause follow-up dehydration procedure the most multiple Miscellaneous, prior, this technique is the most very good for the clearance of Caffeine from Tea.

Chinese patent CN101040621A discloses a kind of device reducing the content of caffeine in tealeaf, It is also based on the above-mentioned principle with Hot water immersion removing caffeine and carries out caffeine process.Described device Mainly it is made up of running part and working portion, including motor, bracket be inclined on bracket Cylindrical housings；The inner chamber of described housing is provided with and the spiral propeller of inner walls cooperating； The top, top of described tubular shell is provided with water inlet, bottom is provided with tea export；Described shell The top, bottom of body is provided with Folium Camelliae sinensis import, bottom is provided with outlet.Described device utilizes hot water to soak The principle of stain, well achieves the removing of caffeine.But owing to caffeine is molten to after in hot water, Hot water containing caffeine can affect the further dissolution of Caffeine from Tea, so caffeine removing rate The most very good.And described decaffeinated equipment uses separate unit set-up mode, after decaffeination Tea raw material moisture content the highest, in addition it is also necessary on a dead lift to drying equipment be dried dehydration to enter Row following process, and dry run typically requires by tea making master worker's experience control Folium Camelliae sinensis moisture content, Waste time and energy and constant product quality is difficult to ensure that, it is difficult to realize integration, standardization and clean Produce continuously.

Utility model content

To this end, technical problem to be solved in the utility model be provide one be capable of seriality, The device of integration removing Caffeine from Tea.

For solving above-mentioned technical problem, the device of removing Caffeine from Tea described in the utility model, Pass through to transmit including removing unit and hot air drying unit, described removing unit and described drying unit Band is connected, it is achieved the continuous treatment of Folium Camelliae sinensis；

Described removing unit includes leaf feeding bucket, the first conveyer belt being connected with described leaf feeding bucket；Described Heat water-spraying's equipment and cold water sprinkling equipment sequentially it is set side by side with above first conveyer belt, described first Hot-water collection pond and cold water collecting pit it is correspondingly arranged on respectively below conveyer belt；

Described hot air drying unit includes hot air drier, the Folium Camelliae sinensis warp after described removing cell processing Described first conveyer belt is transported in described hot air drier, and carries out under the transmission of the second conveyer belt Dried, the Folium Camelliae sinensis after process is transported to leaf outlet through the 3rd conveyer belt and is collected.

Described first conveyer belt, described second conveyer belt and/or the 3rd conveyer belt are net formula conveyer belt, and Be connected with each other logical setting, it is achieved the serialization transmission of Folium Camelliae sinensis.

Described heat water-spraying's equipment includes hot-water nozzle and HWS, and by hot water inlet valve The spray flow of door regulation hot water；

Described cold water sprinkling equipment includes cold water shower nozzle and cold water flow pipe, and passes through temperature sensor The chilling temperature of detection blade.

Described first conveyer belt is provided with roller brush with the connectivity part of described second conveyer belt, for gluing Under wet blade brush on described first conveyer belt.

Described device also includes that boiler, described boiler are connected to provide spray with described HWS Required hot water, described boiler also warm-air pipe with described hot air drier is connected, and is dried to provide Required hot blast.

Described device also includes water cooling pond, and described water cooling pond provides cold water by cold water pipe to described boiler, And be connected to provide spray required cold water with described cold water flow pipe；Cold water in described water cooling pond leads to Cross drain pipe and enter cold water gutter.

Described device also includes:

With described hot-water collection pond and the hot water drain pipe that is connected, for by described hot-water collection pond The hot water collected enters hot water gutter；And

The cold water drain pipe being connected with described cold water collecting pit, described cold water drain pipe is by described cold water The cold water collected in collecting pit is discharged, and is optionally entered cold water collecting pipe gone forward side by side by Valve controlling Enter described water cooling pond, or enter described hot water drain pipe and enter described hot water gutter.

Described device also includes the spray agitating unit for spraying assisted solution；

Described spray agitating unit includes the cylinder being connected with described leaf outlet, arranges in described cylinder There are liquid sprinkling equipment, and the stator muscle that drive Folium Camelliae sinensis moves, the Folium Camelliae sinensis after spray stir process It is collected through discharging opening.

Described liquid sprinkling equipment includes holding the liquid storage tank of assisted solution, catheter, and liquid spray Head, the assisted solution in described liquid storage tank is sprayed on Folium Camelliae sinensis leaf through described catheter and described fluid jetting head Process on face.

Described fluid jetting head is arranged at the center of described cylinder.

The device of removing Caffeine from Tea described in the utility model, utilizes described spray equipment with hot water The mode of spray carries out caffeine removing process, removes caffeine with hot water extraction in prior art The mode that equipment processes is compared, the device of removing caffeine described in the utility model, contributes to further Improve the removal efficiency of caffeine, whole device is up to 85% for caffeine removing rate, effectively reduces Folium Camelliae sinensis is on the stimulation of stomach and the impact on sleep；Meanwhile, Tea Polyphenols in Tea, catechin, ammonia The retention rate of base acid is all more than 85%, less on the impact of Folium Camelliae sinensis organoleptic quality so that it is in remaining to keep The style of state's traditional tea.

The device of removing Caffeine from Tea described in the utility model, is further provided with carrying out at enzyme liquid The unit of reason, the Folium Camelliae sinensis after enzyme liquid processes, its tea polyphenols, free amino acid, soluble sugar etc. become Point retention rate then higher than the method for prior art, and ester catechin and the ratio of non-ester catechin Value also decreases, and its fragrance and mouthfeel significantly strengthen.

The device of removing Caffeine from Tea described in the utility model, uses in described cold water cooling step Cooling water can reuse directly as spray hot water after the heating, reduce water consumption, reduce raw Produce cost.

Accompanying drawing explanation

In order to make content of the present utility model be more likely to be clearly understood, below according to this utility model Specific embodiment and combine accompanying drawing, this utility model is described in further detail, wherein,

Fig. 1 is the structural representation removing caffeine device described in this utility model embodiment 1；

Fig. 2 is the structural representation removing caffeine device described in this utility model embodiment 2；

In figure, reference is expressed as: 1-leaf feeding bucket, 2-leaf-leveling machine, 3-the first conveyer belt, and 4-hot water sprays Head, 5-heat hydraulic pressure counts, 6-hot water temperature sensor, 7-cold water shower nozzle, 8-cold water pressure meter, 9-leaf Sheet temperature sensor, 10-roller brush, 11-hot air drier, 12-ventilation fan, 13-HWS, 14-cold water flow pipe, 15-the 3rd conveyer belt, 16-hydrojet piezometer, 17-cylinder, 18 stator muscle, 19- Fluid jetting head, 20-expects mouth, 21-boiler, 22-overflow pipe, 23-the first water supply pump, 24-cold water draining Valve, 25-drain pipe, 26-cold water gutter, 27-water cooling pond, 28-the second water supply pump, 29-cold water pipe, 30-warm-air pipe, 31-liquid storage tank, 32-liquid pump, 33-catheter, 34-leaf mouth, 35-fan, 36- Moisture test apparatus, 37-the second conveyer belt, 38-blower fan, 39-cold water collecting pipe, 40-the first cold water draining Valve, 41-the second cold water water discharging valve, 42-hot water gutter, 43-hot water water discharging valve, 44-cold water Collecting pit, 45-hot water drain pipe, 46-hot-water collection pond, 47-hot water inlet valve.

Detailed description of the invention

Embodiment 1

As it is shown in figure 1, remove the device of Caffeine from Tea described in the present embodiment, including removing unit And hot air drying unit, described removing unit is connected by conveyer belt with described drying unit, real The continuous treatment of existing Folium Camelliae sinensis.

Described removing unit includes leaf feeding bucket 1, the first conveyer belt 3 being connected with described leaf feeding bucket 1； Described Folium Camelliae sinensis transmits through described first conveyer belt 3 and carries out spray process.It is provided with in described leaf feeding bucket 1 Leaf-leveling machine 2, described leaf-leveling machine 2 is Height Adjustable apart from described first conveyer belt 3, in order to regulation tea Leaf raw material enter leaf amount.Sequentially be set side by side with above described first conveyer belt 3 heat water-spraying's equipment and Cold water sprinkling equipment, is correspondingly arranged on hot-water collection pond 46 and cold respectively below described first conveyer belt 3 Water collecting pit 44.Described heat water-spraying's equipment and cold water sprinkling equipment can be selected for routine in prior art to be made The equipment of realized spray, and be advisable so that the equipment of spray flow can be controlled.

In the present embodiment, described heat water-spraying's equipment includes hot-water nozzle 4 and HWS 13, And the spray flow of hot water is regulated by hot water inlet valve 47.Arrange on described HWS 13 Have heat hydraulic pressure count 5 with monitor hot water pressure condition, be provided with hot water near described hot-water nozzle 4 Temperature sensor 6, with the temperature of monitoring spray hot water, controls the temperature of described spray hot water in the present embodiment Degree, for 92-100 DEG C, controls in the unit interval (min), and described Folium Camelliae sinensis with the weight ratio of described hot water is 1:0.3-2.5, spray time controls as 2-5min.Tea raw material puts into 1 leaf feeding bucket, after at 2 leaf-leveling machines Effect under evenly laid out be transported to below hot-water nozzle 4 on the first conveyer belt 3, Folium Camelliae sinensis is through hot water Spray decaffeinated.The transfer rate of described first conveyer belt 3 and the water spray of described hot-water nozzle 4 Measure adjustable, to ensure decaffeination effect.

Described cold water sprinkling equipment includes cold water shower nozzle 7 and cold water flow pipe 14, and is passed by temperature Sensor 9 detects the chilling temperature of blade, and described cold water flow pipe 14 is additionally provided with cold water pressure meter 8 The pressure condition of monitoring cold water.The present embodiment controls fresh tea leaf cooling processed to leaf temperature extremely 25-35℃.Folium Camelliae sinensis after heat water-spraying processes is transported to cold water shower nozzle 7 through the first conveyer belt 3 Lower section, reduces rapidly leaf temperature with cold water spray, prevents blade xanthochromia under hyther.Temperature sensing Device 9 detectable blade cooling temperature, in order to regulate the injection flow rate of 7 cold water shower nozzles in time, controls cooling Rear blade temperature.

Described hot-water collection pond 46 is arranged at the lower section of described hot-water nozzle 4, and with hot water drain pipe 45 It is connected, by controlling hot water water discharging valve 43, the hot water collected in described hot-water collection pond 46 is arranged Enter hot water gutter 42.

Described cold water collecting pit 44 is arranged at the lower section of described cold 7 sprinkler heads 4, and with cold water drain pipe It is connected, discharges for the cold water will collected in described cold water collecting pit 44.Described cold water drain pipe 44 It is connected with cold water collecting pipe 39 and described hot water drain pipe 45 respectively by three-way valve；It is accumulated in cold In water collecting pit 44 cooling water selective through first cold water water discharging valve 41 control be discharged into hot water In gutter 42, or control through described cold water collecting pipe 39 defeated through the second cold water water discharging valve 40 Deliver to water cooling pond 27 reuses.

Described hot air drying unit includes hot air drier 11, is provided with in described hot air drier 11 Two conveyer belts 37, the Folium Camelliae sinensis after described removing unit cooling processes transports through described first conveyer belt 3 To carrying out hot air drying in described hot air drier 11 to desired moisture content, and at the second conveyer belt 37 Transmission under be dried process, being dried to leaf water content is 60-65%, and the Folium Camelliae sinensis after process is through the 3rd Conveyer belt 15 is transported to leaf outlet 34 and is collected, and is directly transported to Folium Camelliae sinensis carry out on other equipment Following process.If the Folium Camelliae sinensis processed is green tea, then the tea raw material sent through leaf mouth 34 can be direct Knead, it is not necessary to be dried regulation moisture content again.

Preferably, described first conveyer belt 3 and described second conveyer belt 37 are preferably net formula conveyer belt, Described 3rd conveyer belt 15 is conventional conveyer belt or for net formula conveyer belt, described first, second, the Be connected with each other between three conveying belts logical setting, it is possible to achieve the serialization transmission of Folium Camelliae sinensis.And described First conveyer belt 3 is provided with roller brush 10 with the connectivity part of described second conveyer belt 37, for being bonded at Under wet blade brush on described first conveyer belt 3.

It is provided with moisture test apparatus 36 in described hot air drier 11, can measure and monitor dried tea The water content of leaf, in order to the transfer rate and the warm-air pipe 30 that regulate described 3rd conveyer belt 37 in time are defeated The temperature of the hot blast sent and air quantity, the temperature controlling hot blast in the present embodiment is 120-200 DEG C, to reach Control Folium Camelliae sinensis to target moisture content.Described hot air drier 11 is additionally provided with ventilation fan 12, can will be dried Damp-heat air in case is discharged, and plays blade and protects color effect.Also set up bottom described hot air drier 11 There is blower fan 38, contribute to the incoming described hot air drier 11 of hot blast transmitted by warm-air pipe 30.Described The lower section of the 3rd conveyer belt 15 is provided with fan 35, it is possible to decrease the leaf temperature after hot air drying.

Remove the device of Caffeine from Tea described in the present embodiment and also include boiler 21, described boiler 21 with Described HWS 13 is connected to provide the hot water needed for spray, and described boiler 21 is also with described The warm-air pipe 30 of hot air drier 11 is connected, and is dried required hot blast to provide.

The device removing Caffeine from Tea described in the present embodiment also includes water cooling pond 27, described water cooling pond 27 are connected with described boiler 21 by cold water pipe 29, and by the second water supply pump 28 to boiler 21 Cold water is provided.Described water cooling pond 27 is also connected with described cold water flow pipe 14, and cold by first Water pump 23 provides spray required cold water to described cold water sprinkling equipment.Described water cooling pond 27 is also with described Cold water collecting pipe 39 is connected, and the circulating chilled water collected in collecting described cold water collecting pit 44 makes With.The cold water collected in described water cooling pond 27 can be by controlling cold water water discharging valve 24, via draining Pipe 25 enters cold water gutter 26；It is too high for water level that described water cooling pond 27 is additionally provided with overflow pipe 22 It it is the discharge of cold water.

The device removing Caffeine from Tea described in the present embodiment is utilized to carry out Folium Camelliae sinensis decaffeination process Technique includes: the fresh tea leaf taking fresh harvesting enters described device through leaf feeding bucket 1, and Folium Camelliae sinensis is at even leaf Under the effect of device 2 evenly laid out at described first conveyer belt 3, and its drive under enter follow-up spray step Suddenly.

Described Folium Camelliae sinensis is first delivered to below described hot-water nozzle 4 through heat water-spraying's decaffeinated, passes through It is about 96 DEG C that hot water temperature sensor 6 controls the temperature of described spray hot water, and passes through hot water inlet Valve 47 regulates the spray flow of hot water, controls in the unit interval (min), and described Folium Camelliae sinensis is with described The weight ratio of hot water is 1:1, and spray time controls as 3min.Hot water after spray processes enters described the Hot-water collection pond 46 below one conveyer belt 3, described hot-water collection pond 46 and hot water drain pipe 45 phase Connection, enters the hot water collected in described hot-water collection pond 46 by controlling hot water water discharging valve 43 Hot water gutter 42.

Folium Camelliae sinensis after heat water-spraying processes is delivered to described cold water shower nozzle 7 by described first conveyer belt 3 Lower section carries out blade face cooling, prevents blade xanthochromia under hyther.And examined by temperature sensor 9 The temperature surveying blade is cooled to 25-35 DEG C.Cold water after spray processes enters described first conveyer belt 3 times The cold water collecting pit 44 of side, described cold water collecting pit 44 is connected with cold water drain pipe, for by described The cold water collected in cold water collecting pit 44 is discharged.The cooling wet concentration being accumulated in cold water collecting pit 44 is selected Property control to be discharged in hot water gutter 42 through the first cold water water discharging valve 41, or cold through second Water water discharging valve 40 controls to be transported in water cooling pond 27 recycling through described cold water collecting pipe 39.

Folium Camelliae sinensis after described removing cell processing is transported to described hot air drying through described first conveyer belt 3 In dry case 11, and carry out under the transmission of the second conveyer belt 37 arranged in described hot air drier 11 Dried, can be measured by moisture test apparatus 36 and monitor the water content of dried Folium Camelliae sinensis, and lead to Overregulate the transfer rate of described 3rd conveyer belt 37, the hot blast air quantity of warm-air pipe 30 conveying and control Heating air temperature is 150 DEG C, makes the water content on dried blade face reach 60-65%, the Folium Camelliae sinensis after process It is transported to leaf outlet 34 through the 3rd conveyer belt 15 be collected, directly Folium Camelliae sinensis is transported to other equipment On carry out following process.

Folium Camelliae sinensis after the removing of this device and hot air drying is placed the laggard row that eases back and kneads process, tender Leaf carries out kneading 10min-25min, Lao Ye and carries out kneading 30min-50min；Deblock in centre, pressurize 1-2 Secondary process, rubs to rolled twig rate and reaches 60-80%；Take the Folium Camelliae sinensis after kneading subsequently to enter at a temperature of 120 DEG C Row is dried, and is 35-40% to moisture content, then by frying pan parch moulding or direct fried dry；After parch Folium Camelliae sinensis is dried Titian with fragrance extracting machine and is processed, and controlling fragrance extracting machine temperature is that 100 DEG C of drying to moisture content are less than 8%；Folium Camelliae sinensis after processing is screened, cut and roll, selecting crude drugs with winnower, pick and pick and the roasting normal process steps such as Titian essence again System, forms specification tea, in order to packs according to one-tenth requirement of sampling tea, to obtain final product.

Embodiment 2

As in figure 2 it is shown, remove the device of Caffeine from Tea described in the present embodiment, including removing unit, Hot air drying unit and spray agitating unit, described removing unit, described drying unit and described spray Drench and be connected by conveyer belt between agitating unit, it is achieved the continuous treatment of Folium Camelliae sinensis.

Unit, hot air drying unit is removed identical with structure in embodiment 1 described in the present embodiment, described Removing unit includes leaf feeding bucket 1, the first conveyer belt 3 being connected with described leaf feeding bucket 1；Described Folium Camelliae sinensis Transmit through described first conveyer belt 3 and carry out spray process.It is provided with leaf-leveling machine 2 in described leaf feeding bucket 1, Described leaf-leveling machine 2 is Height Adjustable apart from described first conveyer belt 3, in order to regulation tea raw material Enter leaf amount.Heat water-spraying's equipment and cold water spray sequentially it is set side by side with above described first conveyer belt 3 Equipment, is correspondingly arranged on hot-water collection pond 46 and cold water collecting pit below described first conveyer belt 3 respectively 44.Described heat water-spraying's equipment and cold water sprinkling equipment can be selected for conventional use of in prior art can be real The equipment now sprayed, and be advisable so that the equipment of spray flow can be controlled.

Described spray agitating unit is used for spraying assisted solution, and described assisted solution includes enzyme liquid or carries Take thing solution.Folium Camelliae sinensis after described hot air drying cell processing enters described spray through leaf outlet 34 and stirs Mix unit to process.

Described spray agitating unit includes the cylinder 17 being connected with described leaf outlet 34, described cylinder The stirring rotating the described Folium Camelliae sinensis of drive of 17, and the spray of enzyme liquid or extract solution is more uniformly distributed. Liquid sprinkling equipment, and the stator muscle 18 that drive Folium Camelliae sinensis moves it is provided with in described cylinder 17, described Folium Camelliae sinensis, under the drive of stator muscle 18, sprays the most abundant thorough, after spray stir process Folium Camelliae sinensis It is collected through discharging opening 20.

In the present embodiment, described liquid sprinkling equipment includes holding the liquid storage tank 31, therewith of assisted solution The catheter 33 being connected, and fluid jetting head 19, described fluid jetting head 19 is arranged at described cylinder The center of 17 and its spouting liquid are adjustable so that spray the most abundant.Described enzyme liquid or extract are molten Liquid is stored in described liquid storage tank 31, under the effect of pump 32, through described catheter 33 and described liquid Body shower nozzle 19 is sprayed on tea leaf surface and processes, hydrojet fully mix with Folium Camelliae sinensis in cylinder after warp Discharging opening 20 is sent and is carried out subsequent technique process.Described catheter 33 position is provided with hydrojet pressure Meter 16, in order to detect the pressure condition of hydrojet.

Folium Camelliae sinensis after described removing cell processing is transported to described hot air drying through described first conveyer belt 3 In dry case 11, and carry out under the transmission of the second conveyer belt 37 arranged in described hot air drier 11 Dried, can be measured by moisture test apparatus 36 and monitor the water content of dried Folium Camelliae sinensis, and lead to Overregulate the transfer rate of described 3rd conveyer belt 37, the hot blast air quantity of warm-air pipe 30 conveying and control Heating air temperature is 150 DEG C, makes the water content on dried blade face reach 45-50%, the Folium Camelliae sinensis after process It is transported to leaf outlet 34 through the 3rd conveyer belt 15 be collected.

The Folium Camelliae sinensis that leaf outlet 34 is collected is sent directly in described cylinder 17, under the drive of cylinder 17 And under the effect of stator muscle 18, Folium Camelliae sinensis moves and Stirring along cylinder wall, need the enzyme sprayed Liquid or extract solution, under the effect of pump 32, spray through described catheter 33 and described fluid jetting head 19 Spilling and process on tea leaf surface, hydrojet is sent through discharging opening 20 after fully mixing with Folium Camelliae sinensis in cylinder Go out, Folium Camelliae sinensis is transported on other equipment carry out following process.

Enzyme liquid extracting cellulose enzyme, pectase, tannase, beta-glucosidase and wood described in the present embodiment Melon protease is made, and according to enzyme liquid: the weight ratio of Folium Camelliae sinensis is the ratio of 1:5, by equal for described enzyme liquid Even it is sprayed on the Folium Camelliae sinensis surface after processed mix homogeneously.In described enzyme liquid, described cellulase Concentration be 0.2 ten thousand u/mL, the concentration of described pectase be 0.12 ten thousand u/mL, described tannase dense Degree is 200u/mL, the concentration of described beta-glucosidase is 3000u/mL, described papain Concentration be 20,000 u/mL.

Comparative example

Utilize the dress reducing the content of caffeine in tealeaf disclosed in CN101040621A in background technology Put and carry out removing caffeine process, in the step of described removing caffeine, by fresh for the green tea of fresh harvesting Leaf directly processes by 95-96 DEG C of Hot water immersion, and described fresh tea leaf is 1:3 with the weight ratio of hot water, leaching The stain time is 3min.

Effect example

Conventional method (caffeine: GB/T 8312-2013, tea polyphenols: the GB/T recorded according to GB 8313-2008, catechin: GB/T 8313-2008, aminoacid: GB/T 8314-2013, solubility Sugar: GB/T 5009.7-2008) to the Folium Camelliae sinensis treatment effect in above-described embodiment 1-4 and comparative example 1-3 Detecting, detection data include the content of caffeine of Folium Camelliae sinensis, the removal efficiency of caffeine, tea polyphenols, The content of the composition such as catechin, aminoacid and retention rate, and record see table 1.

Through inspection, this utility model above-described embodiment processes in the green tea of use original containing coffee Because content is 3.79wt%, the content of tea polyphenols is 22.4wt%, and the content of catechin is 15.5wt%, The content of free amino acid is 4.2wt%, and soluble sugar content is 4.4%, ester catechin/non-ester-type The ratio of catechin is 3.27.

The component content detection of Folium Camelliae sinensis after table 1 process

Above-mentioned data understand, and remove, with hot water extraction, the side that the equipment of caffeine processes in prior art Formula is compared, the device of removing caffeine described in the utility model, contributes to further increasing caffeine Removal efficiency；Meanwhile, the Folium Camelliae sinensis after enzyme liquid processes, its tea polyphenols, free amino acid, solubility The retention rate of the compositions such as sugar is then higher than the method for prior art, and ester catechin and non-ester-type catechu The ratio of element also decreases, and its fragrance and mouthfeel significantly strengthen.

Obviously, above-described embodiment is only for clearly demonstrating example, and not to embodiment party The restriction of formula.For those of ordinary skill in the field, the most also may be used To make other changes in different forms.Here without also all of embodiment being given With exhaustive.And the obvious change thus extended out or variation are still in the guarantor of the invention Protect among scope.

Claims

1. remove a device for Caffeine from Tea, including removing unit and hot air drying unit, it is characterised in that:

Described removing unit is connected by conveyer belt with described drying unit, it is achieved the continuous treatment of Folium Camelliae sinensis；

Described removing unit includes leaf feeding bucket (1), the first conveyer belt (3) being connected with described leaf feeding bucket (1)；Described first conveyer belt (3) top is sequentially set side by side with heat water-spraying's equipment and cold water sprinkling equipment, and described first conveyer belt (3) lower section is correspondingly arranged on hot-water collection pond (46) and cold water collecting pit (44) respectively；

Described hot air drying unit includes hot air drier (11), Folium Camelliae sinensis after described removing cell processing is transported in described hot air drier (11) through described first conveyer belt (3), and under the transmission of the second conveyer belt (37), it being dried process, the Folium Camelliae sinensis after process is transported to leaf outlet (34) through the 3rd conveyer belt (15) and is collected.

The device of removing Caffeine from Tea the most according to claim 1, it is characterized in that, described first conveyer belt (3), described second conveyer belt (37) and/or the 3rd conveyer belt (15) are net formula conveyer belt, and logical setting that be connected with each other, it is achieved the serialization transmission of Folium Camelliae sinensis.

The device of removing Caffeine from Tea the most according to claim 2, it is characterised in that:

Described heat water-spraying's equipment includes hot-water nozzle (4) and HWS (13), and by the spray flow of hot water inlet valve (47) regulation hot water；

Described cold water sprinkling equipment includes cold water shower nozzle (7) and cold water flow pipe (14), and by the chilling temperature of temperature sensor (9) detection blade.

The device of removing Caffeine from Tea the most according to claim 3, it is characterized in that, described first conveyer belt (3) is provided with roller brush (10) with the connectivity part of described second conveyer belt (37), for being bonded under the wet blade brush on described first conveyer belt (3).

5. according to the device of the arbitrary described removing Caffeine from Tea of claim 1-4, it is characterized in that: described device also includes boiler (21), described boiler (21) is connected with described HWS (13) to provide the hot water needed for spray, described boiler (21) is also connected with the warm-air pipe (30) of described hot air drier (11), is dried required hot blast to provide.

The device of removing Caffeine from Tea the most according to claim 5, it is characterized in that: described device also includes water cooling pond (27), described water cooling pond (27) provides cold water by cold water pipe (29) to described boiler (21), and is connected with described cold water flow pipe (14) to provide spray required cold water；Cold water in described water cooling pond (27) enters cold water gutter (26) by drain pipe (25).

The device of removing Caffeine from Tea the most according to claim 6, it is characterised in that described device also includes:

With described hot-water collection pond (46) and the hot water drain pipe (45) that is connected, for the hot water collected in described hot-water collection pond (46) is entered hot water gutter (42)；And

The cold water drain pipe being connected with described cold water collecting pit (44), the cold water collected in described cold water collecting pit (44) is discharged by described cold water drain pipe, and optionally enter cold water collecting pipe (39) by Valve controlling and enter described water cooling pond (27), or enter described hot water drain pipe (45) and enter described hot water gutter (42).

The device of removing Caffeine from Tea the most according to claim 7, it is characterised in that described device also includes the spray agitating unit for spraying assisted solution；

Described spray agitating unit includes the cylinder (17) being connected with described leaf outlet (34), described cylinder is provided with liquid sprinkling equipment in (17), and the stator muscle (18) that drive Folium Camelliae sinensis moves, the Folium Camelliae sinensis after spray stir process is collected through discharging opening (20).

The device of removing Caffeine from Tea the most according to claim 8, it is characterized in that, described liquid sprinkling equipment includes holding the liquid storage tank (31) of assisted solution, catheter (33), and fluid jetting head (19), the assisted solution in described liquid storage tank (31) is sprayed on tea leaf surface processes through described catheter (33) and described fluid jetting head (19).

The device of removing Caffeine from Tea the most according to claim 9, it is characterised in that described fluid jetting head (19) is arranged at the center of described cylinder (17).