CN217785748U

CN217785748U - Tea leaf drying machine

Info

Publication number: CN217785748U
Application number: CN202221902094.8U
Authority: CN
Inventors: 莫莎莎; 蔡成旺; 李易霖; 官祥
Original assignee: Yuxi Xintianli Agricultural Equipment Manufacturing Co ltd
Current assignee: Yuxi Xintianli Agricultural Equipment Manufacturing Co ltd
Priority date: 2022-07-21
Filing date: 2022-07-21
Publication date: 2022-11-11
Anticipated expiration: 2032-07-21

Abstract

The utility model discloses a tea leaf drying machine, including circulating fan, the hydrofuge fan, electric heating pipe, the heat transfer core, the fresh air window, conveying mesh belt, the drying chamber, the mode that returns under the air current circulation mode adopted the top feed, more accord with tea leaf drying process, there is the air equalizing plate in the air inlet duct, it is more even to ensure wind field in the drying chamber, toast whole hot-air circulation, the hydrofuge process carries out the heat exchange through the heat transfer core, the waste heat obtains retrieving and recycles, compare with traditional tea leaf drying machine, drying process is more reasonable, hot-air circulation and increase the heat transfer core and carry out waste heat recovery, the efficiency ratio is high, it is unreasonable to have solved traditional tea leaf drying machine air supply mode, the wind field is inhomogeneous, there is the problem that the tealeaves quality differs after drying, do not take air current circulation system and heat recovery, there is the problem of high energy consumption.

Description

Tea leaf drying machine

Technical Field

The utility model relates to a stoving technical field specifically indicates a tealeaves drying-machine.

Background

After the black tea is fermented, a tea dryer is used for drying. The drying process is different, the traditional tea dryer has unreasonable air supply mode and uneven wind field, and has the problems of different tea quality after drying, no air circulation system and heat recovery, and high energy consumption.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome above technical defect, provide a tealeaves drying-machine, take air current circulation system and heat recovery, the energy consumption is low, the thermal efficiency is high, improves tealeaves stoving quality.

In order to solve the technical problem, the utility model provides a technical scheme does: the utility model provides a tealeaves drying-machine, includes the drying chamber, be equipped with in the drying chamber and be no less than the one deck by motor drive's conveying mesh belt, the last lower extreme that lies in conveying mesh belt in the drying chamber is equipped with air inlet duct and return air duct respectively, be equipped with the board of equalizing wind between air inlet duct and the conveying mesh belt, one side of drying chamber is equipped with vertical arrangement and the equipment room with air inlet duct, return air duct intercommunication, the equipment room lower part is equipped with and returns air duct complex heat transfer core, electric heating pipe, equipment room upper portion is equipped with the circulating fan that corresponds with the air inlet duct, the lower extreme of equipment room is equipped with the fresh air window, one side of equipment room is equipped with the hydrofuge fan, one side that the drying chamber is relative with the equipment room is equipped with material conveyer belt and material output conveyer belt, the output of material conveyer belt with be located the input cooperation of the superiors conveying mesh belt, material output conveyer belt is located the output of lower floor conveying mesh belt.

Compared with the prior art, the utility model the advantage lie in: the drying chamber is internally provided with a plurality of layers of vertically arranged conveying mesh belts for bearing tea leaves, the tea leaves are conveyed from the uppermost layer to the lowermost layer after entering the drying chamber, hot air firstly contacts with the tea leaves at the uppermost layer after entering the drying chamber, enters the next layer after penetrating through the material at the layer 1, enters the next layer after penetrating through the next layer, and finally enters the air return duct by analogy, so that the tea leaves are heated from high temperature to low temperature, and the quality of the dried tea leaves can be improved;

the dried gas is discharged by a moisture discharging fan after heat exchange through a heat exchange core, low-temperature low-humidity air in the environment enters a drying chamber through a fresh air window and the heat exchange core, the supplemented fresh low-temperature low-humidity air and the discharged medium-temperature high-humidity air exchange heat through the heat exchange core, the low-temperature low-humidity air is converted into medium-temperature low-humidity air, the medium-temperature low-humidity air is converted into high-temperature low-humidity air after being heated by an electric heating pipe, and the high-temperature low-humidity air is sent into an air inlet duct through a circulating fan to form an air flow circulating system, so that the energy consumption is low, the heat efficiency is high, and the purpose of saving the energy consumption is achieved.

As an improvement, the airflow circulation mode in the drying chamber is an up-feeding and down-returning mode, the conveying mesh belts are provided with 4 layers, the first layer and the third layer of conveying mesh belts are driven by a first belt, the second layer and the fourth layer of conveying mesh belts are driven by a second belt, the transmission mode is simple, the structure is simple, and the realization is easy.

As an improvement, the air equalizing plate is composed of 3 porous plates with different apertures, the aperture size depends on the air volume of the circulating fan, and the air equalizing plate uniformly sends hot air into the drying chamber, so that each layer of tea in the drying chamber can be uniformly heated.

As the improvement, the one end of material conveyer belt is equipped with the collecting hopper, be equipped with on the collecting hopper with material conveyer belt complex sawtooth scraper blade, make things convenient for the transport of tealeaves, the tealeaves that simultaneously the sawtooth scraper blade can cross on the conveyer belt is shakeout, is favorable to drying.

Drawings

Fig. 1 is a schematic structural view of the tea dryer of the present invention.

Fig. 2 is an internal structure schematic diagram of the tea dryer of the present invention.

As shown in the figure: 1. a circulating fan; 2. a moisture removal fan; 3. an electric heating tube; 4. a heat exchange core body; 5. a fresh air window; 6. a conveying mesh belt; 7. an air inlet duct; 8. a wind equalizing plate; 9. an air return duct; 10. a drying chamber; 11. a material output conveyer belt; 12. a material conveying belt; 13. a collection hopper; 14. a saw-tooth scraper; 15. and an equipment room.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The utility model provides a tea leaf drying machine, includes drying chamber 10, it is no less than the one deck by motor drive's conveying mesh belt 6 to be equipped with in the drying chamber 10, the last lower extreme that lies in conveying mesh belt 6 in drying chamber 10 is equipped with air inlet duct 7 and return air duct 9 respectively, be equipped with air-equalizing plate 8 between air inlet duct 7 and the conveying mesh belt 6, one side of drying chamber 10 is equipped with vertical arrangement and the equipment room 15 of air inlet duct 7, return air duct 9 intercommunication, equipment room 15 lower part is equipped with and returns air duct 9 complex heat transfer core 4, electric heating pipe 3, equipment room 15 upper portion is equipped with the circulating fan 1 that corresponds with air inlet duct 7, equipment room 15's lower extreme is equipped with new wind window 5, one side of equipment room 15 is equipped with hydrofuge fan 2, one side that drying chamber 10 and equipment room 15 are relative is equipped with material conveyer belt 12 and material output conveyer belt 11, the output of material conveyer belt 12 with lie in the input cooperation of conveying mesh belt 6, material output conveyer belt 11 lies in the output of lower floor conveying mesh belt 6, the one end of material 12 is equipped with collection hopper 13, be equipped with the sawtooth cooperation of the superiors of scraper blade and

material

12 and 14 on the most superior layer of collection hopper 13.

The air circulation mode in the drying chamber 10 is an up-feeding and down-returning mode, the conveying mesh belts 6 are provided with 4 layers, the first layer and the third layer of the conveying mesh belts 6 are driven by a first belt, and the second layer and the fourth layer of the conveying mesh belts 6 are driven by a second belt.

The air equalizing plate 8 is composed of 3 porous plates with different apertures, the aperture size depends on the air volume of the circulating fan, and the air volume of the circulating fan 1 is 8000m through theoretical calculation and practical experiment results ³ The number and the aperture of the 3 air-equalizing plates 8 are respectively 216-phi 30, 300-phi 20 and 400-phi 10, so that the design aims to ensure the uniformity of the air quantity of each point in the drying chamber, and 9 air-equalizing plates 8 are respectively selected from the 3 air-equalizing plates 8And air quantity detection is carried out at each point, and as a result, the air quantity difference of each point is within a reasonable range, so that hot air can be uniformly sent into the drying room to contact with the tea leaves on the premise that the thickness of the spread material is 1cm-2 cm.

When the utility model is implemented specifically, the air current circulation mode in the drying chamber 10 is a mode of feeding from top to bottom and the cold air is heated by the electric heating pipe 3 to form hot air, the hot air is fed into the air inlet duct 7 by the circulating fan 1 and then is uniformly fed into the drying chamber 10 by the air-equalizing

plate

8, 4 layers of conveying mesh belts 6 for bearing tea leaves are arranged in the drying chamber 10, the tea leaves are conveyed from the uppermost layer to the lowermost layer after entering the drying chamber 10 through the external material conveying belt 12, the inlet air temperature and humidity in the drying chamber 10 are set through the dryer control system, the hot air firstly contacts with the tea leaves on the uppermost layer after entering the drying chamber 10, the hot air enters the 2 nd layer after passing through the 1 st layer, the hot air enters the 3 rd layer after passing through the 3 rd layer, the hot air enters the return air duct after passing through the 4 th layer, the hot air entering the return air duct takes away the moisture contained in the 4 layers of materials and then is converted into the intermediate temperature high humidity air, the moisture exhausting fan 2 discharges after heat exchange by the heat exchange core 4, at this time, a negative pressure is formed in a drying room inside the drying machine, low-temperature low-humidity air in the environment enters the drying room 10 after passing through the fresh air window 5 and the heat exchange core 4, the pressure balance between the inside of the drying room 10 and the external environment is kept, the supplemented fresh low-temperature low-humidity air and the discharged medium-temperature high-humidity air exchange heat through the heat exchange core 4, the low-temperature low-humidity air is converted into medium-temperature low-humidity air which is heated by the electric heating pipe 3 and then converted into high-temperature low-humidity air, the high-temperature low-humidity air is sent into an air inlet duct through the circulating fan 1 to form an air flow circulating system, the drying mode aims to heat tea from high temperature to low temperature, the quality of the dried tea is improved, the air flow circulating system and a heat recovery device are added at the same time, the purpose of saving energy consumption is achieved, the dried tea falls onto the material output conveyer belt 11 through the 4-layer conveying net belt 6, and then output.

The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.

Claims

1. A tealeaves drying-machine which characterized in that: including drying chamber (10), be equipped with in drying chamber (10) and be no less than the one deck by motor drive's conveying mesh belt (6), the upper and lower end that lies in conveying mesh belt (6) in drying chamber (10) is equipped with air inlet duct (7) and return air duct (9) respectively, be equipped with between air inlet duct (7) and the conveying mesh belt (6) air-equalizing board (8), one side of drying chamber (10) is equipped with vertical arrangement and with air inlet duct (7), return air duct (9) the equipment room (15) intercommunication, equipment room (15) lower part is equipped with and returns air duct (9) complex heat transfer core (4), electric heating pipe (3), equipment room (15) upper portion is equipped with circulating fan (1) that correspond with air inlet duct (7), the lower extreme of equipment room (15) is equipped with new trend window (5), one side of equipment room (15) is equipped with hydrofuge fan (2), one side that drying chamber (10) and equipment room (15) are relative is equipped with material output belt (12) and material output conveyer belt (11), the output terminal of conveyer belt (12) and the superiors conveying mesh belt (6) and is located the most lower floor of conveying mesh belt (6) output terminal (11).

2. The tea dryer of claim 1, wherein: the air circulation mode in the drying chamber (10) is an up-feeding and down-returning mode, the conveying mesh belts (6) are provided with 4 layers, the first layer and the third layer of conveying mesh belts (6) are driven by a first belt, and the second layer and the fourth layer of conveying mesh belts (6) are driven by a second belt.

3. The tea dryer of claim 1, wherein: the air equalizing plate (8) is composed of 3 porous plates with different apertures, and the size of the apertures depends on the size of the air volume of the circulating fan.

4. The tea dryer of claim 1, wherein: one end of the material conveying belt (12) is provided with a material collecting hopper (13), and the material collecting hopper (13) is provided with a sawtooth scraper (14) matched with the material conveying belt (12).