CN114246228A - Tea roller uniform fixation machine and fixation method - Google Patents

Abstract

The invention discloses a tea roller uniform fixation machine, which comprises: the tea leaf storage device comprises a roller, a plurality of clamping pieces and a plurality of clamping pieces, wherein the roller is used for containing tea leaves, at least two spiral plates taking the axis of the roller as the center are arranged on the inner wall of the roller, a tea leaf storage cavity is formed between every two adjacent spiral plates, and a plurality of parting pieces are arranged on the inner wall of the roller in the direction of the axis of the roller in a surrounding mode in the circumferential direction of the inner wall of the roller; the cylinder is arranged on the outer side of the roller through a bearing and can keep the roller and the roller to rotate relatively, the tea leaf fixation method can fix tea leaves in different regions by arranging the spiral plates, accumulation is avoided, meanwhile, in the rotating process of the roller, tea leaves slide along the surfaces of the spiral plates, and the tea leaves are rubbed and rolled on the surfaces of the spiral plates by means of the hemispherical bulges and the weight of the tea leaves, so that the primary rolling effect is achieved, meanwhile, the roller rotates to enable the tea leaves to be fixed uniformly, the scorching condition cannot be generated, and the fixation effect is better.

Description

Tea roller uniform fixation machine and fixation method

Technical Field

The invention discloses a tea roller uniform fixation machine and a fixation method, and belongs to the technical field of tea production equipment.

Background

Tea is a favorite traditional beverage for people, especially green tea, and is particularly popular in the market because the fresh green appearance color and luster and natural nutrient components are kept. The green tea fixation process is an important step in the processing process and is a key step for forming and improving the quality of tea. The existing green tea manufacturing deactivation process in batch production comprises the following steps: the method adopts the processes of grading, spreading and then deactivating enzyme by a roller deactivating enzyme machine. The process can basically adapt to production, but has the following defects: 1. the roller fixation machine used in the fixation process has small fixation amount, so that the tea leaf amount produced in each batch is small, the process is only small-batch intermittent production, and the production efficiency is low. 2. Because the drum fixation machine has few tea leaves, occasional factors of retention, movement and thermal contact of the tea leaves are increased, the phenomena of fixation impermeability and non-uniformity also appear, the phenomena of tea leaf scorching, scorched leaves, red stems and red leaves often appear, the produced green-accumulating pan-fired quality has obvious difference with the quality of the traditional manual process production, and the main performance is that: the color is dark and uneven, the rope is loose, broken and broken, the tea dust is more, and the fragrance is dull and stuffy; this is similar to the reason that when the dry food is fried, the food is easily fried and burnt when the amount of the added food is too small.

The patent with publication number CN102106415B discloses a water-removing process in primary processing of green tea, and the key points of the technical scheme are as follows: after the prepared tea leaves are subjected to enzyme deactivation by using the roller enzyme deactivation machine, continuously conveying the tea leaves to the next roller enzyme deactivation machine for continuous enzyme deactivation, and dissipating heat and moisture of the tea leaves during continuous conveying; a screen drum is used between the two drums to dissipate hot and wet air; the screen drum is fixedly connected with the drum of the front side drum water-removing machine into a whole.

Although the above patent continuously conveys the tea leaves to the next roller fixation machine for continuous fixation after the fixation of the roller fixation machine is finished, the heat and moisture of the tea leaves are emitted during the continuous conveyance; namely, the rollers of the first roller fixation machine and the second roller fixation machine are utilized, and damp and hot gas is emitted when the two rollers are continuously conveyed, so that the problems of yellow tea leaves, red stems and red leaves in the rollers are solved. When the roller rotates, tea leaves can slide along the leaf guide plate, the sliding speed of the tea leaves is determined by the curvature of the leaf guide plate, and sliding friction is generated between the leaf guide plate and the leaf guide plate, so that the same side of the tea leaves at the bottom is heated for a long time, the situation of overheating and even burning is easily generated, meanwhile, the tea leaves are easy to stack, particularly the tea leaves covered in the tea leaves after stacking are in a covered state for a long time, even if the tea leaves roll along the leaf guide plate during rolling, the surface area of the stacked tea leaves is limited, and the phenomena of yellow, red stem and red leaf are easily generated, so that the green-removing of the tea leaves is not uniform.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides a tea roller uniform fixation machine and a fixation method.

The invention achieves the above-mentioned purpose through the following technical scheme, a tea drum uniform fixation machine, comprising:

the tea leaf storage device comprises a roller, a plurality of partition strips and a plurality of partition plates, wherein the roller is used for containing tea leaves, at least two spiral plates taking the axis of the spiral plates as the center are arranged on the inner wall of the roller, a tea leaf storage cavity is formed between every two adjacent spiral plates, the inner wall of the roller is provided with the plurality of partition strips in a surrounding mode in the circumferential direction of the inner wall of the roller, and the plurality of partition strips are arranged in the axis direction of the roller and form a plurality of partition areas with the spiral plates;

the drum is installed on the outer side of the drum through a bearing and can keep the drum and the drum to rotate relatively, two ends of the drum and the drum are closed, a heat conduction cavity is formed between the drum and the drum, an air inlet pipe and an air outlet pipe which are communicated with the heat conduction cavity are arranged on the drum, a hopper is arranged on the drum, and one end of the hopper extends into the inner cavity of the drum;

the rack is used for fixing the cylinder, and a motor and a rotating shaft for driving the roller to rotate relative to the cylinder are arranged on the rack.

Through adopting above-mentioned technical scheme, set up a plurality of spiral shells, make the even separation of tealeaves that adds from the hopper, the spiral shell makes tealeaves rotate in step under the drive of motor, and make tealeaves also can slide along the curved surface of spiral shell simultaneously, with avoid piling up tealeaves like traditional cylinder is unified and take place the condition of overheated scorching, and the spiral shell can also play the effect of spreading out tealeaves, thereby increase the heated area of tealeaves, tealeaves can receive blockking of parting bead when sliding simultaneously, the accumulational thickness of tealeaves is greater than the height of parting bead, partial tealeaves slides along the spiral shell under the action of gravity, and another part tealeaves slides after prolonging, so not only further increased tealeaves and spread out the area of being heated, it is more even to be heated simultaneously and fix out.

Preferably, the spiral plate is provided with a plurality of through holes which are 3-6 cm in diameter and distributed in an array.

Through adopting above-mentioned technical scheme, set up the through-hole, when tentatively completing, the surface area of tealeaves is big, can't pass the through-hole, can avoid tealeaves and spiral plate heated time overlength to lead to the condition of overheated scorching, and after completing between certain, tealeaves become soft, knead volume after rolling and reduce, partial tealeaves can fall to another spiral plate through the through-hole on, and the tealeaves that does not pass through continues to be heated with the spiral plate contact to it is even to guarantee to complete.

Preferably, one side of the spiral plate for supporting the tea leaves is provided with a plurality of hemispherical bulges distributed in an array manner.

Through adopting above-mentioned technical scheme, set up the hemisphere arch, can increase the frictional force of the two when tealeaves slides along the spiral plate, reduce sliding speed simultaneously to tealeaves can take place to roll in the big position of spiral plate camber, thereby reaches the effect of tentatively kneading.

Preferably, one side of the spiral plate for supporting the tea leaves is provided with a plurality of ribs distributed in an array manner, and the length direction of the ribs is consistent with the width direction of the spiral plate.

Through adopting above-mentioned technical scheme, tealeaves when sliding along the spiral plate, with the bead contact, can form the effect of rolling and rubbing to bottom tealeaves depending on the effect of tealeaves gravity to more be favorable to the completing of tealeaves.

Preferably, the roller and the spiral plate are both made of heat-conducting metal materials.

Through adopting above-mentioned technical scheme, the cylinder can be with heat conduction to the spiral plate to the heated area of increase tealeaves.

Preferably, the inner wall of the cylinder is provided with a spiral barrier strip for forming spiral guide for the gas in the heat conducting cavity.

Through adopting above-mentioned technical scheme, with cold air or hot-air leading-in to the heat conduction chamber, make the air can the unidirectional flow under the effect of spiral blend stop to guarantee that the cylinder is in required constant temperature state.

Preferably, the cylinder is provided with an air duct communicated with the inner cavity of the roller.

Through adopting above-mentioned technical scheme, set up the air duct, can be with the leading-in cylinder inner chamber of cold air to reach the inside and outside refrigerated effect simultaneously of cylinder.

Preferably, the drum comprises a drum body and a drum cover, the drum cover is hinged with the drum body, and the drum cover is in rotary sealing fit with one end of the drum.

Through adopting above-mentioned technical scheme, after the tea wrap, open the cover and rotate the cylinder, can make the tealeaves in the cylinder can realize automatic discharge, convenient operation is simple.

A fixation method of a tea roller uniform fixation machine comprises the following steps:

s1: introducing hot air from an air inlet pipe, preheating the temperature of the roller to 100-110 ℃, and keeping a constant temperature state;

s2: putting a proper amount of picked tea which meets the standard into a feed hopper, and meanwhile, driving a roller to pave the tea in a tea placing cavity at a rotating speed of 30-35 r/min through a motor;

s3: closing the feed hopper and the air duct to enable the roller to form a closed space, then raising the temperature of the roller to 110-120 ℃, and carrying out pressurization and enzyme deactivation for 8-12 min under the condition that the rotating speed is raised to 60-70 r/min;

s4: opening the feed hopper to discharge steam in the roller, reducing the temperature of the roller to 80-85 ℃, continuously rotating the roller, and keeping the state for 5-8 min;

s5: and introducing cold air from the air inlet pipe and the air guide pipe simultaneously, discharging steam in the inner cavity of the roller, reducing the rotating speed of the roller to 20-25 r/min, keeping the state for 10-15 min, reducing the temperature of the tea leaves by 30-40 ℃, opening the cover of the roller, discharging the tea leaves from the roller, and horizontally spreading and cooling the tea leaves to the normal temperature.

Through adopting above-mentioned technical scheme, tealeaves is at the in-process that completes, and moisture evaporation forms steam and is sealed in the cylinder inner chamber, atmospheric pressure and humidity increase to make tealeaves be heated at the in-process that the intensification tumbles evenly, and soften with higher speed, continue to complete to tealeaves under the condition of constant temperature and constant pressure afterwards, later adopt the inside and outside simultaneous cooling of cylinder, reduce steam and be adsorbed by tealeaves, in order to guarantee that the moisture content of tealeaves meets the requirements.

Compared with the prior art, the invention has the beneficial effects that:

set up a plurality of spiral shells, make the even separation of tealeaves from the hopper, the spiral shell makes tealeaves rotate in step under the drive of motor, and make tealeaves also can slide along the curved surface of spiral shell simultaneously, in order to avoid piling up tealeaves like traditional cylinder is unified and take place the overheated condition of singeing, and the spiral shell can also play the effect of spreading out tealeaves, thereby increase the heated area of tealeaves, tealeaves can receive stopping of parting bead when sliding simultaneously, the accumulational thickness of tealeaves is greater than the height of parting bead, partial tealeaves slides along the spiral shell under the action of gravity, and another part tealeaves slides after prolonging, so not only further increased the area that tealeaves spreads out and is heated, it is more even to be heated simultaneously and fix out.

Drawings

FIG. 1 is a schematic structural view of a tea roller uniform fixation machine according to the present invention;

FIG. 2 is a sectional view of the tea drum uniform de-enzyming machine of the present invention;

FIG. 3 is a schematic view of the structure of the drum according to the present invention;

FIG. 4 is a schematic structural view of a spiral plate according to the present invention;

reference numerals: 1. a frame; 2. an air inlet pipe; 3. a motor; 4. a cylinder; 5. a hopper; 6. an air duct; 7. an air outlet pipe; 8. a rotating shaft; 9. a drum; 10. a heat conducting cavity; 11. a barrel; 12. a parting strip; 13. a spiral plate; 14. a bearing; 15. a cylinder cover; 16. a spiral barrier strip; 17. a tea leaf placing cavity; 18. a separation zone; 19. a rib; 20. and a through hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

As shown in fig. 1-4, a tea roller uniform enzyme deactivating machine comprises a frame 1, a cylinder 4 and a roller 9, wherein the cylinder 4 is fixed on the frame 1, the roller 9 is rotatably mounted on the inner side of the cylinder 4 through a bearing 14, the frame 1 is provided with a motor 3 and a rotating shaft 8 for driving the roller 9 to rotate relative to the cylinder 4, a heat conducting cavity 10 is formed between the cylinder 4 and the roller 9, the cylinder 4 is provided with a hopper 5, when the roller 9 needs to be heated or cooled, only hot air or cold air needs to be introduced from an air inlet pipe 2, exchanged air can flow out from an air outlet pipe 7, when the air is introduced for a certain time, the constant temperature can be realized, meanwhile, the inner wall of the cylinder 4 is provided with a spiral barrier strip 16, which not only can ensure that the roller 9 is uniformly heated, but also has less heat loss, thereby achieving the energy-saving effect, after tea leaves are placed in the roller 9, the motor 3 and the rotating shaft 8 drive the roller 9 to rotate, so that the tea leaves can be de-enzymed.

Because the tea leaves are easy to accumulate at the bottom of the roller 9 in the de-enzyming process of the prior roller 9, the de-enzyming effect of the tea leaves is influenced, in order to solve the problem, a plurality of spiral plates 13 are fixedly arranged on the inner wall of the roller 9, a tea placing cavity 17 is formed between the adjacent spiral plates 13, meanwhile, the structure of the cylinder 4 comprises a cylinder body 11 and a cylinder cover 15, the cylinder cover 15 is hinged with the cylinder body 11, the cylinder cover 15 is in rotary sealing fit with one end of the roller 9, the hopper 5 is arranged on the cylinder cover 15, one end of the hopper 5 extends into the inner cavity of the roller 9, tea leaves are put into the hopper 5 and the roller 9 is rotated at a constant speed, so that the tea leaves can be flatly laid in each tea leaf placing cavity 17, the tea leaves in the two tea leaf placing cavities 17 are blocked by the spiral plate 13 and can not be mixed, therefore, the accumulation amount of the tea leaves is reduced, so that the heating area of the tea leaves is increased, and the fixation of the tea leaves is accelerated.

In this embodiment, a plurality of spiral plates 13 are arranged along the axial direction of the drum 9, when the spiral plates 13 rotate along with the drum 9, tea leaves can slide under the action of gravity because of the change of the curvature of the spiral plates 13, tea leaves in a single tea leaf placing cavity 17 can also gather at the lowest position of the spiral plates 13 due to the lack of blocking of the drum 9 and the spiral plates 13 to the sliding of the tea leaves, once the stacking amount is excessive, the surface covered by the tea leaves is limited, the tea leaves at the surface and at the bottom can be heated, the tea leaves in the middle can only be heated by rolling, and the heating time is very short, so that phenomena of yellow, red stems and red leaves are easy to occur, in order to improve the problem, the invention arranges a plurality of partition strips 12 around the inner wall of the drum 9 in the circumferential direction, the partition strips 12 are arranged at equal intervals along the axial direction of the drum 9, thereby dividing the tea leaf placing cavity 17 into a plurality of partition zones 18, because the tea placing cavity 17 is a space formed by the spiral plate 13 and the inner wall of the roller 9, when the tea is at the position of the lowest point of the roller 9, which is mainly tightly attached to the inner wall of the roller 9, however, during the rotation process, a part of tea slowly slides to the spiral plate 13 and slides along the spiral plate 13, the other small part of the tea leaves slides first due to the sliding speed of the former part of the tea leaves and is blocked by the parting strips 12, the tea leaves higher than the parting strips 12 slide later, the plurality of parting strips 12 sequentially have the same effect on the tea leaves, the tea leaves sliding later in the plurality of separating areas 18 are sequentially laid on the spiral plate 13 layer by layer according to time, the laying area of the tea leaves is effectively increased, the heating quantity of the tea leaves is further increased, the tea leaves are heated uniformly, the phenomena of yellow stuffiness, red stems and red leaves caused by excessive accumulation of the tea leaves are avoided, and the problems in the prior art are well solved.

Meanwhile, because the tea leaves slide on the spiral plate 13 by means of gravity, sliding friction occurs between the tea leaves and the spiral plate 13, and the same side of the tea leaves at the bottom is kept in contact with the spiral plate 13 for a long time, particularly, in order to accelerate the heating effect of the tea leaves, under the condition that the roller 9 and the spiral plate 13 are both made of heat-conducting metal materials, the tea leaves are easy to overheat and even scorch, in order to solve the problem, through holes 20 distributed in an array manner are added on the spiral plate 13, the diameter of each through hole 20 is 3-6 cm, when the tea leaves are subjected to primary enzyme deactivation, the surface area of the tea leaves is large, the tea leaves cannot pass through the through holes 20, heat dissipation is carried out through the through holes 20, the situation that the tea leaves and the spiral plate 13 are overheated and scorched due to overlong heating time can be avoided, after the enzyme deactivation is carried out for a certain time, the tea leaves become soft and the volume is reduced after the spiral kneading, part of the tea leaves can fall onto the other plate 13 through the through holes 20, and the tea leaves which are not passed through and are continuously contacted with the spiral plate 13, thereby playing a role of screening and ensuring the fixation to be uniform. In addition, be used for bearing the one side of tealeaves at spiral plate 13 and be provided with the bead 19 that a plurality of arrays distribute, the length direction of bead 19 keeps unanimous with the width direction of spiral plate 13, when tealeaves slides along spiral plate 13 surface, bead 19 can increase friction between them, under the not big condition of bead 19's height, rely on the accumulational gravity of part tealeaves to exert the effort and produce the effect of rolling to bottom tealeaves, so reach the effect of preliminary kneading, thereby more be favorable to the green-removing of tealeaves, when the structure of bead 19 is semi-cylindrical, the damage effect to tealeaves is minimum.

A fixation method of a tea roller uniform fixation machine comprises the following steps:

s1: introducing hot air from the air inlet pipe 2, preheating the temperature of the roller 9 to 100-110 ℃, and keeping a constant temperature state;

s2: putting a proper amount of picked tea leaves meeting the standard into a feed hopper 5, and simultaneously paving the tea leaves in a tea leaf placing cavity 17 at a rotating speed of 30-35 r/min by driving a roller 9 through a motor 3;

s3: closing the feed hopper 5 and the gas guide pipe 6 to enable the roller 9 to form a closed space, raising the temperature of the roller 9 to 110-120 ℃, and carrying out pressurization and enzyme deactivation for 8-12 min under the condition that the rotating speed is raised to 60-70 r/min;

s4: opening the feed hopper 5 to discharge steam in the roller 9, reducing the temperature of the roller 9 to 80-85 ℃, continuing to rotate the roller 9, and keeping the state for 5-8 min;

s5: introducing cold air from the air inlet pipe 2 and the air duct 6 simultaneously, discharging steam in the inner cavity of the roller 9, reducing the rotating speed of the roller 9 to 20-25 r/min, keeping the state for 10-15 min, reducing the temperature of the tea leaves by 30-40 ℃, opening the cover 15, discharging the tea leaves from the roller 9, and horizontally spreading and cooling the tea leaves to the normal temperature.

Example 2

The difference of this embodiment with embodiment 1 lies in the structure difference on spiral plate 13 surface, and in this embodiment, the one side that spiral plate 13 is used for bearing tealeaves is provided with the hemisphere arch of a plurality of array distributions, and it constitutes the bump structure, and it can produce the effect of buckling and kneading to tealeaves for the effect is better for tealeaves completes and kneads.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (9)

1. The utility model provides a tea roller machine of evenly completing which characterized in that includes:

the tea leaf storage device comprises a roller (9) for containing tea leaves, wherein at least two spiral plates (13) taking the axis as the center are installed on the inner wall of the roller (9), a tea leaf storage cavity (17) is formed between every two adjacent spiral plates (13), a plurality of partition strips (12) are arranged on the inner wall of the roller (9) in a surrounding mode in the circumferential direction of the inner wall, and the partition strips (12) are arranged in the axis direction of the roller (9) and form a plurality of partition areas (18) with the spiral plates (13);

the drum (4) is installed on the outer side of the roller (9) through a bearing (14) and can keep the roller and the roller to rotate relatively, two ends of the drum (4) and the roller (9) are closed, a heat conduction cavity (10) is formed between the two ends of the drum (4) and the roller, an air inlet pipe (2) and an air outlet pipe (7) communicated with the heat conduction cavity (10) are arranged on the drum (4), a hopper (5) is arranged on the drum (4), and one end of the hopper (5) extends into the inner cavity of the roller (9);

the drum fixing device comprises a rack (1) for fixing a drum (4), wherein a motor (3) and a rotating shaft (8) for driving a drum (9) to rotate relative to the drum (4) are arranged on the rack (1).

2. The tea roller uniform fixation machine as claimed in claim 1, wherein the spiral plate (13) is provided with a plurality of through holes (20) with a diameter of 3-6 cm and distributed in an array.

3. The tea roller uniform fixation machine as claimed in claim 1, wherein a face of the spiral plate (13) for supporting tea leaves is provided with a plurality of hemispherical protrusions distributed in an array.

4. The tea roller uniform fixation machine as claimed in claim 1, wherein a face of the spiral plate (13) for supporting tea leaves is provided with a plurality of ribs (19) distributed in an array, and the length direction of the ribs (19) is consistent with the width direction of the spiral plate (13).

5. The tea roller uniform fixation machine as claimed in claim 1, wherein the roller (9) and the spiral plate (13) are made of heat-conducting metal material.

6. The tea roller uniform fixation machine as claimed in claim 1, characterized in that the inner wall of the cylinder (4) is provided with a spiral barrier strip (16) for forming a spiral guide for the gas in the heat conducting chamber (10).

7. The tea roller uniform enzyme deactivating machine as claimed in claim 1, wherein the cylinder (4) is provided with an air duct (6) communicated with the inner cavity of the roller (9).

8. The tea roller uniform fixation machine as claimed in claim 1, characterized in that the cylinder (4) comprises a cylinder body (11) and a cylinder cover (15), the cylinder cover (15) is hinged with the cylinder body (11), and the cylinder cover (15) is in rotary sealing fit with one end of the roller (9).

9. A fixation method of a tea roller uniform fixation machine is characterized by comprising the following steps:

s1: introducing hot air from the air inlet pipe (2), preheating the temperature of the roller (9) to 100-110 ℃, and keeping a constant temperature state;

s2: putting a proper amount of picked tea leaves meeting the standard into a feed hopper (5), and simultaneously, driving a roller (9) to pave the tea leaves in a tea leaf placing cavity (17) at a rotating speed of 30-35 r/min by a motor (3);

s3: closing the feed hopper (5) and the air duct (6) to enable the roller (9) to form a closed space, then raising the temperature of the roller (9) to 110-120 ℃, and carrying out pressurization and enzyme deactivation for 8-12 min under the condition that the rotating speed is raised to 60-70 r/min;

s4: opening the feed hopper (5) to discharge steam in the roller (9), reducing the temperature of the roller (9) to 80-85 ℃, continuing to rotate the roller (9), and keeping the state for 5-8 min;

s5: introducing cold air from the air inlet pipe (2) and the air guide pipe (6) simultaneously, discharging steam in the inner cavity of the roller (9), reducing the rotating speed of the roller (9) to 20-25 r/min, keeping the state for 10-15 min, reducing the temperature of the tea leaves by 30-40 ℃, opening the barrel cover (15), discharging the tea leaves from the roller (9), horizontally spreading the tea leaves and cooling to the normal temperature.

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