CN216205083U

CN216205083U - Hot air dryer for Taiping Houkui

Info

Publication number: CN216205083U
Application number: CN202122958869.5U
Authority: CN
Inventors: 周伟
Original assignee: Huangshan Huangshan Weiyu Machinery Sales Co ltd
Current assignee: Huangshan Huangshan Weiyu Machinery Sales Co ltd
Priority date: 2021-11-25
Filing date: 2021-11-25
Publication date: 2022-04-05
Anticipated expiration: 2031-11-25

Abstract

The utility model discloses a Taiping Houkui hot air dryer which comprises a rack, wherein a conveying device used for clamping tea leaves and conveying the tea leaves forwards is arranged on the rack, a cover which covers the conveying device is also arranged on the rack, at least one suction fan is arranged on the cover, and an air inlet of the suction fan is positioned on the cover; at least one heating cavity matched with the suction fan is arranged below the conveying device, an air supply pipeline is arranged between the heating cavity and an air outlet of the suction fan, and the heating cavity and the suction fan are arranged in an oblique angle; the cover is also provided with a group of moisture exhaust holes. The utility model can effectively solve the problems of low tea drying speed, poor drying effect and yellowing of tea. The utility model has simple structure and can be widely applied to the field of processing of Taiping Houkui.

Description

Hot air dryer for Taiping Houkui

Technical Field

The utility model relates to the technical field of tea machinery, in particular to a Taiping Houkui hot air dryer.

Background

Taiping Houkui, one of the traditional famous tea and the historical famous tea in China, belongs to the green tea category, is produced in Taiping county (yellow mountain area in yellow mountain city instead of Taiping county) in Anhui, is the best product of Jian tea, and is well-known for a long time. The appearance of the mask has the characteristic of flatness and straightness, and has the name of 'Houkui with two sharp ends, no scattering, no upwarping and no curling'. In the process of making taiping houkui, the tea leaves after being processed by the procedures of frying, flattening and the like need to be dried. At present, hot air drying is mostly adopted in tea leaf production. The traditional hot air dryer is of a single-layer sieve plate type structure, tea leaves are spread on a sieve plate one by one and then placed into the dryer for drying, and the tea leaves are taken out after being dried. The traditional geothermal air dryer has the advantages of low drying speed, poor quality of dried tea leaves and yellow color.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a Taiping Houkui hot air dryer which solves the problems that the appearance of an existing Taiping Houkui dryer is easy to deform during drying, the drying efficiency is low, and the effect is poor.

The technical scheme adopted by the utility model for solving the technical problems is as follows: a Taiping Houkui hot air dryer comprises a rack, wherein a conveying device used for clamping tea leaves and conveying the tea leaves forwards is arranged on the rack, a cover which covers the conveying device is further arranged on the rack, at least one suction fan is arranged on the cover, and an air inlet of the suction fan is positioned on the cover; at least one heating cavity matched with the suction fan is arranged below the conveying device, an air supply pipeline is arranged between the heating cavity and an air outlet of the suction fan, and the heating cavity and the suction fan are arranged in an oblique angle; the cover is also provided with a group of moisture exhaust holes.

In order to ensure that the tea leaves are clamped and cannot shift in the tea leaf drying process, the conveying device comprises an upper rotary conveying belt and a lower rotary conveying belt, and the upper rotary conveying belt and the lower rotary conveying belt are of ventilated net structures.

In order to avoid direct radiation of heat of the heating pipe on the conveying device, a group of heating pipes are arranged in the heating cavity, a partition plate is arranged between the upper portion of the heating pipe and the conveying device, one side of the heating cavity is communicated with the air supply pipeline, an air outlet with an upward opening is formed in the other side of the heating cavity, and the air outlet is located above the side of the heating pipe.

In order to ensure that hot air obliquely and upwards enters the conveying device along the tea conveying direction to prevent the hot air from entering the heating cavity, the air outlet is provided with an air deflector which is inclined towards the tea conveying direction.

In order to discharge the moisture generated by drying out of the cover along the moisture discharge hole, a bottom plate is arranged below the conveying device and on one side of the heating cavity, and a group of air guide holes are formed in the bottom plate.

The utility model has the beneficial effects that: according to the utility model, the tea leaves are clamped by the conveying device and conveyed forwards, so that the tea leaves cannot shift in the drying process, and the processing shape of the Taiping Houkui is well ensured. Drying structure adopts the heating chamber and the suction fan cooperation of a set of relative setting, and the heating temperature when tealeaves just got into conveyor is high, and along with the distance increase of carrying forward, the temperature reduces gradually, is favorable to the stoving of tealeaves, and simultaneously, the hydrofuge hole of top in time discharges the moisture, and the induced air hole of reunion below drives the air and upwards walks, consequently, can accelerate the evaporation of tealeaves moisture, improves the drying efficiency of tealeaves. The heating cavity structure avoids the problem that the tea leaves are burnt due to overhigh local temperature caused by the fact that the heat of the heating pipe is directly radiated on the conveying device. The air deflector can guide hot air to obliquely and upwards enter the conveying device along the tea conveying direction, hot air circulation is facilitated, and uneven heat distribution caused by turbulent flow is avoided. In addition, the heating cavity is matched with the suction fan, so that the heat recycling can be improved, the energy consumption of equipment is reduced, and the production cost is reduced.

The utility model will be explained in more detail below with reference to the drawings and examples.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Figure 2 is a side view of the present invention employing a single suction fan and heating chamber.

Fig. 3 is a schematic structural view of a heating chamber according to the present invention.

Fig. 4 is a schematic diagram of the position of the bottom plate of the present invention.

Detailed Description

Embodiment, as shown in fig. 1 to 4, a taiping houkui hot air dryer comprises a frame 1, a conveying device 3 for clamping tea leaves and conveying the tea leaves forward is arranged on the frame 1, the conveying device 3 comprises an upper rotary conveying belt 31 and a lower rotary conveying belt 32, and the upper rotary conveying belt 31 and the lower rotary conveying belt 32 are both of a ventilated net structure. The upper slewing belt 31 rotates counterclockwise, and the lower slewing belt 32 rotates clockwise. Tea leaves are clamped between the upper rotary conveying belt 31 and the lower rotary conveying belt 32 to be conveyed forwards, and the tea leaves can be prevented from being blown by wind and shifted in the drying process, so that the flat and straight characteristics of the Taiping Houkui are guaranteed.

The frame 1 is also provided with a cover 2 covering the conveying device 3, and the cover 2 is provided with a group of moisture exhaust holes 21. The cover cap 2 can play a role in heat preservation, so that the drying efficiency is improved; the moisture exhausting holes 21 can exhaust the moisture evaporated from the tea leaves out of the cover cap 2.

The cover cap 2 is provided with a suction fan 4, the suction fan 4 is arranged at one end of the discharge hole, and an air inlet of the suction fan 4 is positioned on the cover cap 2. A heating cavity 5 matched with the suction fan 4 is arranged below the conveying device 3, and the heating cavity 5 is arranged at one end of the tea feeding hole, so that the heating cavity 5 and the suction fan 4 are arranged in an oblique angle. An air supply pipeline 41 is arranged between the heating cavity 5 and an air outlet of the suction fan 4. Meanwhile, in order to overcome the problem that a single set of suction fans 4 and heating chambers 5 cannot dry tea leaves, a plurality of heating chambers 5 and suction fans 4 can be arranged on the conveying device 3 in the above arrangement manner.

The suction fan 4 sucks the gas in the cover 2, transmits the gas to the heating cavity 5 for heating through the air supply pipeline 41, and blows hot air into the cover 2 to dry the tea leaves. The heating chamber 5 is located below the feed end 33 of the conveyor 3, and the suction fan 4 is arranged away from the feed end 33.

A group of heating pipes 51 are arranged in the heating cavity 5, a partition plate 52 is arranged between the upper part of each heating pipe 51 and the conveying device 3, one side of the heating cavity 5 is communicated with the air supply pipeline 41, an air outlet 53 with an upward opening is formed in the other side of the heating cavity 5, and the air outlet 53 is positioned above the side of each heating pipe 51; the air outlet 53 is provided with an air deflector 54 inclined in the tea conveying direction. The air deflector 54 can guide hot air to obliquely and upwards enter the conveying device 3 along the tea conveying direction, so that hot air circulation is facilitated, and uneven heat distribution caused by turbulent flow is avoided.

A bottom plate 11 is arranged below the conveying device 3 and on one side of the heating cavity 5, and a group of air inducing holes 111 are arranged on the bottom plate 11. Fresh air can move upwards through the air inducing holes 111, and the rate of discharging water vapor from the moisture discharging holes 21 can be increased, so that the tea leaf drying efficiency is further improved.

In the actual drying process, tea leaves are continuously conveyed forwards from the feeding end 33 into the conveying device, hot air is obliquely blown to the conveying device 3 from the air outlet 53, the hot air can directly penetrate through the conveying device 3 to be blown to the tea leaves, then the hot air obliquely upwards moves to the direction away from the feeding end 33 along the cover 2 to the position close to the air inlet of the suction fan 4, then the air with heat is pumped out by the suction fan 4 and then is heated by the heating cavity 5 to be blown to the tea leaves, and therefore the repeated circulation can be realized, the energy consumption is saved, and the production cost is reduced.

The utility model is described above with reference to the accompanying drawings. It is to be understood that the specific implementations of the utility model are not limited in this respect. Various insubstantial improvements are made by adopting the method conception and the technical scheme of the utility model; the present invention is not limited to the above embodiments, and can be modified in various ways.

Claims

1. The utility model provides a taiping kowkui hot air dryer, includes frame (1), its characterized in that: the tea leaf conveying device is characterized in that a conveying device (3) used for clamping tea leaves and conveying the tea leaves forwards is arranged on the rack (1), a cover (2) covering the conveying device (3) is further arranged on the rack (1), at least one suction fan (4) is arranged on the cover (2), and an air inlet of the suction fan (4) is located on the cover (2); at least one heating cavity (5) matched with the suction fan (4) is arranged below the conveying device (3), an air supply pipeline (41) is arranged between the heating cavity (5) and an air outlet of the suction fan (4), and the heating cavity (5) and the suction fan (4) are arranged in an inclined diagonal manner; the cover cap (2) is also provided with a group of moisture discharging holes (21).

2. The taiping houkui hot air dryer of claim 1, wherein: the conveying device (3) comprises an upper rotary conveying belt (31) and a lower rotary conveying belt (32), and the upper rotary conveying belt (31) and the lower rotary conveying belt (32) are of ventilated net structures.

3. The taiping houkui hot air dryer of claim 1, wherein: be provided with a set of heating pipe (51) in heating chamber (5), be provided with between the top of heating pipe (51) and conveyor (3) baffle (52), one side and supply-air duct (41) intercommunication of heating chamber (5), the opposite side of heating chamber (5) is provided with opening air outlet (53) up, air outlet (53) are located the side top of heating pipe (51).

4. A taiping houkui hot air dryer as claimed in claim 3, wherein: and the air outlet (53) is provided with an air deflector (54) inclined towards the tea conveying direction.

5. The taiping houkui hot air dryer of claim 1, wherein: a bottom plate (11) is arranged below the conveying device (3) and on one side of the heating cavity (5), and a group of air inducing holes (111) are formed in the bottom plate (11).