Constant-temperature drying device for green tea processing

Abstract

The utility model discloses a constant-temperature drying device for green tea processing, which comprises a drying bin provided with a temperature sensor, a heating disc provided with a snakelike electric heating wire and arranged on the bin wall, an electric heating rod arranged in the middle, and a rotary base station sleeved on the outer side of the electric heating rod, so that heat in the middle can be conveniently transferred to tea leaves in the middle in time; equidistant heat conduction through holes and a plurality of layers of filter screens are arranged on the rotary base station; and an inclined water guide plate is arranged at the bottom of each layer of filter screen. During working, the temperature sensor regulates and controls a three-dimensional heating system formed by the electric heating rod and the electric heating disc, the rotary base table drives tea leaves to be centrifugally dispersed, separated water is directionally discharged through the water guide plate, and preheating airflow accelerates the drying process. The device realizes balanced control of a temperature field, effectively improves the drying effect and efficiency, prevents the green tea from being affected with damp for the second time, and effectively improves the tea quality.

Description

TECHNICAL FIELD

[0001] The utility model relates to tea processing equipment field especially relates to a constant temperature drying device for green tea processing. BACKGROUND

[0002] The existing green tea constant temperature drying equipment adopts single heat source heating mode, and local overheating or insufficient drying often occurs, temperature distribution is uneven, moisture is accumulated, and drying efficiency is low; at the same time, the dynamic heat cycle mechanism is lacked, humid hot air is accumulated in the drying bin, tea is easily re-moistened, and the quality of tea is affected.

[0003] Therefore, the utility model provides a constant temperature drying device for green tea processing. UTILITY MODEL CONTENT

[0004] In order to overcome the defects of prior art, the utility model solves the technical problem of the constant temperature drying device for green tea processing to solve the above problems.

[0005] In order to achieve the purpose, the utility model adopts the following technical scheme:

[0006] The utility model provides a constant temperature drying device for green tea processing, including drying bin, the one side inner wall of drying bin is equipped with temperature sensor, the bin wall of drying bin is equipped with electric heating disc, and the middle part is equipped with electric heating rod, the electric heating rod sleeve is connected in the center of rotating base, the rotating base is hollow, and the wall is equipped with a plurality of equidistance distribution for heat conduction through hole, the rotating base is fixedly installed with more than two layers of filter screen, and the bottom of each filter screen is installed with water guide plate, the length that water guide plate extends outward is greater than the length of the filter screen on the same side, and the rotating base is driven by the second motor when being used;

[0007] The outside of drying bin is equipped with air inlet chamber, the outside of air inlet chamber is equipped with the object chamber, and the air inlet pipe is equipped between object chamber and air inlet chamber, the fan blade rotating is equipped in object chamber, the first rotation axis of fan blade is outward, and the first rotation axis is connected with first motor.

[0008] Further, the electric heating disc is equipped with the electric heating wire of serpentine setting.

[0009] Further, the middle part of water guide plate is closely arranged on the middle part of filter screen above, and the edge of water guide plate is inclined and arranged downward.

[0010] Further, the rotating base, filter screen and water guide plate are all processed from 304 food grade stainless steel material.

[0011] Further, the bottom of the rotating base is equipped with a first rotating gear, and the rotating base is rotatably installed on a supporting base;

[0012] The output shaft of the second motor is connected with a second rotating shaft upward, and the top of the second rotating shaft is equipped with a second rotating gear;

[0013] The first rotating gear and the second rotating gear are engaged with each other.

[0014] Further, the bottom of the drying bin is equipped with a water outlet pipe, and the water outlet pipe is equipped with a solenoid valve.

[0015] Further, the drying bin wall is equipped with two electric heating discs, and the two electric heating discs are oppositely arranged.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. A three-dimensional heat field is formed by the electric heating disc and the center electric heating rod, so that the situation that the tea is unevenly heated due to uneven distribution of heat sources is avoided, and the temperature sensor is used to realize accurate temperature control, so that the green tea can be controlled at a constant temperature during the drying process, the heat of the electric heating rod is transmitted to the tea in the middle through the through hole in the rotating base, and the situation that the tea in the middle is unevenly heated is reduced.

[0018] 2. The rotating base and the multi-layer filter screen structure generate a centrifugal field, accelerate the separation of water, prevent the accumulation of tea, and the through hole arranged on the rotating base facilitates the electric heating rod in the middle to directly transmit heat to the tea on the filter screen, facilitates the heat to radiate from the middle, and the green tea can also receive the heat radiated from the outside, so that the drying is more uniform.

[0019] 3. The water guide plate extension design combined with the inclined structure realizes directional water guide and rapid discharge of liquid water, and avoids that the water stays on the tea or in the drying bin all the time.

[0020] 4. The air inlet system and the heating assembly work together to establish a forced convection heat cycle to improve the drying efficiency, and facilitate the rotation of the fan blade to radiate heat into the drying bin.

[0021] 5. The 304 food-grade stainless steel structure in the scheme ensures hygiene and safety, prevents metal pollution, and reduces the influence on the quality of green tea during the drying process. DRAWINGS

[0022] Figure 1 is the internal structure section view of the utility model;

[0023] Figure 2 is the structure enlarged view of the electric heating disc in the utility model.

[0024] In the drawings:

[0025] dry bin (100), water outlet pipe (101), electromagnetic valve (102), temperature sensor (103), air inlet cavity (104), air inlet pipe (105), storage cavity (106);

[0026] first motor (200), first rotating shaft (201), fan blade (203);

[0027] rotary base (300), through hole (301), first rotating tooth (302), support base (303), filter screen (304), water guide plate (305);

[0028] second motor (400), second rotating shaft (401), second rotating tooth (402);

[0029] electric heating disc (500);

[0030] electric heating rod (600). DETAILED DESCRIPTION

[0031] The technical solutions of the utility model are further illustrated in the following with reference to the drawings and specific embodiments.

[0032] As Figures 1-2 shown, the constant-temperature drying device for green tea processing provided in the embodiment includes a dry bin 100, the bottom of the dry bin 100 is provided with a water outlet pipe 101, the water outlet pipe 101 is provided with an electromagnetic valve 102, the inner wall of one side of the dry bin 100 is provided with a temperature sensor 103, the wall of the dry bin 100 is provided with an electric heating disc 500, in order to facilitate better radiation of heat, two electric heating discs 500 are arranged on the wall of the dry bin 100, and the two electric heating discs 500 are arranged on opposite sides; the electric heating disc 500 is provided with electric heating wires arranged in a serpentine shape, which facilitates the improvement of the drying temperature and the improvement of the heating efficiency, the middle part is provided with an electric heating rod 600, the electric heating rod 600 is sleeved on the center of a rotary base 300, the rotary base 300 is hollow, the wall of the rotary base 300 is provided with a plurality of through holes 301 for heat conduction, the rotary base 300 is fixedly installed with two or more layers of filter screens 304, the bottom of each filter screen 304 is installed with a water guide plate 305, the water guide plate 305 extends outward by a length greater than that of the filter screen 304 on the same side, in order to facilitate installation, the middle part of the water guide plate 305 is arranged close to the middle part of the filter screen 304 above it, the edge part of the water guide plate 305 is arranged in an inclined downward manner, which facilitates the guiding of water to the water outlet pipe 101 and the outflow of water in the dry bin 100, and the rotary base 300 is driven by a second motor 400 during use, and specific details are shown in Figure 1The bottom of the rotating base 300 is equipped with a first rotating tooth 302, the rotating base 300 is rotatably installed on a supporting base 303, the output shaft of the second motor 400 is upwardly connected with a second rotating shaft 401, the top of the second rotating shaft 401 is equipped with a second rotating tooth 402, and the first rotating tooth 302 and the second rotating tooth 402 are in meshing engagement.

[0033] The outer side of the drying bin 100 is equipped with an air inlet cavity 104, the outer side of the air inlet cavity 104 is equipped with a storage cavity 106, an air inlet pipe 105 is arranged between the storage cavity 106 and the air inlet cavity 104, and a rotating fan blade 203 is arranged in the storage cavity 106.

[0034] In order to reduce pollution to green tea in the drying process, the rotating base 300, the filter screen 304 and the water guide plate 305 are all made of 304 food-grade stainless steel material.

[0035] The working principle of the utility model is as follows:

[0036] Before use, the tea leaves are placed flat on each layer of the filter screen, then the bin door is closed, the electric heating disc and the electric heating rod are turned on, the tea leaves are heated and dried in the three-dimensional heating space formed by the electric heating disc and the electric heating rod, during which, the second motor drives the rotating machine table to rotate the filter screen, and the first motor drives the fan blade to blow air into the drying bin; the temperature sensor arranged on the bin body monitors the internal temperature of the drying bin in real time, controls the electric heating disc and the electric heating rod to work cooperatively, ensures that the temperature in the drying bin is not too high, and maintains a constant temperature for drying; the second motor drives the rotating base to rotate the filter screen layer, so that the tea leaves that are too concentrated are uniformly dispersed under the action of centrifugal force, and the liquid water separated out in the drying process enters the water guide plate through the gap on the filter screen, is collected to the water outlet pipe along the inclined edge of the water guide plate, and is discharged by controlling the water outlet pipe; the first motor drives the fan blade to generate airflow, and the external air is preheated to form circulating hot air, so as to accelerate water evaporation.

[0037] The utility model is described through preferred embodiments, and those skilled in the art know that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the utility model. The utility model is not limited by the specific embodiments disclosed herein, and other embodiments falling within the claims of the present application all belong to the protection scope of the utility model.

Claims

1. A constant temperature drying device for green tea processing, characterized in that: The device includes a drying chamber (100), on one inner wall of which a temperature sensor (103) is provided. An electric heating plate (500) is provided on the wall of the drying chamber (100), and an electric heating rod (600) is provided in the middle. The electric heating rod (600) is sleeved in the center of a rotating base (300). The rotating base (300) is hollow and has several equidistant through holes (301) for heat conduction on its wall. Two or more layers of filter screens (304) are fixedly installed on the periphery of the rotating base (300). A water guide plate (305) is installed at the bottom of each filter screen (304). The outward extension length of the water guide plate (305) is greater than the length of the filter screen (304) on the same side. The rotating base (300) is driven by a second motor (400) during use. The drying chamber (100) has an air inlet cavity (104) on its outer side, and a storage cavity (106) is provided on the outer side of the air inlet cavity (104). An air inlet pipe (105) is provided between the storage cavity (106) and the air inlet cavity (104). A rotating fan blade (203) is provided inside the storage cavity (106). The first rotating shaft (202) of the fan blade (203) is arranged outward, and the first rotating shaft (202) is connected to the first motor (200).

2. The constant temperature drying device for green tea processing according to claim 1, characterized in that, The electric heating plate (500) is equipped with a serpentine electric heating wire.

3. The constant temperature drying device for green tea processing according to claim 1, characterized in that, The water guide plate (305) is positioned close to the center of the filter screen (304) above it, and the edges of the water guide plate (305) are inclined downwards.

4. The constant temperature drying device for green tea processing according to claim 1, characterized in that, The rotating base (300), filter screen (304), and water guide plate (305) are all made of 304 food-grade stainless steel.

5. The constant temperature drying device for green tea processing according to claim 1, characterized in that, The bottom of the rotating base (300) is equipped with a first rotating tooth (302), and the rotating base (300) is rotatably mounted on the support base (303); The output shaft of the second motor (400) is connected to the second rotating shaft (401) with its shaft facing upwards. The top of the second rotating shaft (401) is provided with a second rotating tooth (402). The first rotating tooth (302) and the second rotating tooth (402) mesh with each other.

6. The constant temperature drying apparatus for green tea processing according to claim 1, characterized in that, The bottom of the drying chamber (100) is provided with a water outlet pipe (101), and a solenoid valve (102) is provided on the water outlet pipe (101).

7. The constant temperature drying apparatus for green tea processing according to claim 1, characterized in that, The drying chamber (100) has two electric heating plates (500) on its walls, with the two electric heating plates (500) facing each other.

Images