Roller drying machine

The technology of rolling drying and rolling is applied in the field of tea processing devices, which can solve the problems of low aroma and easy gray color, and achieve the effects of promoting green color, good color and high aroma.

Inactive Publication Date: 2014-12-10
宁波市姚江源机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Studies have shown that during the frying and drying process, the friction between the finished product and the iron pot wall (tube wall) is severe, which helps to form a sharp aroma quality, but the color tends to be dark; the drying process has a relatively better color and is more green. but low aroma

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] As shown in the figure, a tumble dryer includes a main frame 1 on which a closed structure is formed by fixed side plates 2 and a top plate 13 . The main frame 1 is provided with a drum 8 , and the inner wall of the drum 8 is provided with a spiral guide vane 801 , and the guide vane 801 helps the tea leaves to move evenly in the drum 8 . A heat source exchange chamber 5 is arranged below the drum 8, an axial flow fan 3 is arranged on one side of the heat source exchange chamber 5, a burner 4 is arranged on the heat source exchange chamber 5, and the heat source exchange chamber 5 is composed of a hot runner. The burner 4 heats to generate heat, and the air in the tumble dryer body exchanges heat with the heat source exchange chamber 5. After the exchange, the waste gas in the heat source exchange chamber 5 is discharged from the chimney 17, and the exchanged hot air is discharged under the action of the axial flow fan 3 for heating.

[0018] The drum 8 is covered with...

Embodiment 2

[0023] When the device of the present invention is used for operation, the drum temperature and the hot air temperature are set by controlling the operation of the electromagnetic heating jacket 7 and the hot air pipe 6 through the control of the electrical box 12, wherein the drum temperature is set to 85°C, and the hot air temperature is set to 125°C , and adjust the rotating speed of drum 8 to be 700rpm, and the wind speed to be 10m / s. After the temperature reaches the set value, the curly-shaped green tea in-process with a moisture content of 18% is put in from the feed end, and the in-process product advances with the guide vanes 801 in the cylinder of the drum 8, while rubbing against the cylinder wall to accept the pressure of the cylinder wall. The high heat evaporates the water, and the other side is wrapped by the high-temperature hot air input from 6 hot air pipes. The water is evaporated by the hot air, and finally the goal of dryness is achieved.

Embodiment 3

[0025] When the device of the present invention is used for operation, the drum temperature and the hot air temperature are set by controlling the operation of the electromagnetic heating jacket 7 and the hot air pipe 6 through the control of the electrical box 12, wherein the drum temperature is set to 95°C, and the hot air temperature is set to 115°C , and adjust the rotating speed of the drum to 700rpm and the wind speed to 10m / s. After the temperature reaches the set value, the curly-shaped green tea product in process with a moisture content of 13% is put in from the feed end, and the product in process advances with the guide vanes in the drum 8, while rubbing against the wall of the drum to receive the high heat of the wall While evaporating water, the other side is wrapped by high-temperature hot air input from 6 hot air pipes at the same time, and the water is evaporated through the hot air to finally achieve the goal of dryness.

[0026] Table 1 Sensory evaluation re...

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PUM

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Abstract

The invention discloses a roller drying machine, and belongs to the technical field of tea processing devices. The roller drying machine comprises a main frame, wherein a side plate and a top plate are fixedly arranged on the main frame, a roller is arranged in the main frame, and driven by a transmission mechanism arranged on the main frame, a heat source exchange chamber is arranged below the roller, an axial flow fan is arranged on one side of the heat source exchange chamber, a hot air pipe is arranged in the roller, the roller is sheathed with an electromagnetic heating jacket, a perforated closed plate is fixedly arranged at the feed end of the roller, a wet exhaust hood is sheathed at the discharging end of the roller, a wet exhaust fan is arranged at the upper end of the wet exhaust hood, a hot air inlet is formed in the lower end of the wet exhaust hood, the hot air pipe is connected with a hot air pipe interface arranged in the wet exhaust hood, the hot air pipe interface is communicated with the hot air inlet, and the hot air inlet faces to the axial flow fan. The roller drying machine disclosed by the invention simultaneously has the functions of green removing, roll drying and stir-frying, a product obtained by using the roller drying has jade green color and high fragrance which are better than that of the traditional stir-frying product and higher than that of a hot air dried product respectively.

Description

technical field [0001] The invention belongs to the technical field of tea processing devices, and in particular relates to a tumble dryer. Background technique [0002] The drying process is a key stage to promote the formation of tea taste, aroma and other endogenous substances. Tea drying has the characteristics of staged and staged drying, which can generally be divided into three stages. The first stage is mainly to evaporate water and stop residual enzyme activity; the second stage is the moisture content of the product in process is about 20%, and the plasticity of the product is better at this time, which is the best time for solidification; the third stage is to form tea aroma The main period of quality is the key stage of doing fire exercises. [0003] At present, the drying methods used in production mainly include drying, frying, drying, etc. Among them, the drying operation has the longest history, but it has been gradually eliminated due to the shortcomings o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23F3/06
Inventor 王岳梁罗列万袁海波金晶尹军峰邓余良
Owner 宁波市姚江源机械有限公司
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