Equal-diameter roller type fresh tea grading device and method

A grading device and technology of fresh tea leaves, applied in chemical instruments and methods, solid separation, tea treatment before extraction, etc., can solve problems such as extensive working methods, low grading efficiency, and non-adjustable drum speed, and reduce labor intensity of workers , Improving the degree of mechanization and improving the utilization rate of the drum

Inactive Publication Date: 2016-05-11
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] After retrieving the invention patent 200810059580.6, the drum of the classifier is designed as a cone-shaped cylinder to facilitate the discharge of fresh tea leaves, but the diameter of the feed port of the drum is small, which limits the classification output of the classifier; the sieve aperture is fixed at 0.5cm, 1.5 cm, 2.0cm, so that the first level is mainly used for the classification of fine broken leaves. The fresh tea leaves can only be divided into 3 levels by the two sizes of 1.5cm and 2.0cm. The drum speed and drum inclination angle are fixed during classification , can only manually control the feed rate to ensure the overall classification rate, the working method is extensive, the feed rate is difficult to control, and the classification efficiency is low
Invention patent 201210037886.8 uses multi-layer screens to achieve grading, but the smallest fresh tea leaves need to be graded multiple times, causing greater damage; the drum inclination and feed rate can be adjusted manually, but it is time-consuming, laborious, imprecise, and complex in mechanical structure
In the invention patent 2013100339166.1, the drum inclination and drum speed are still not adjustable, and the feed rate can only be controlled manually, which results in extensive work and low efficiency
Invention patent 201210273704.7 uses flat sieve vibration to classify fresh tea leaves, because the fresh tea leaves collide with the grading sieve continuously during the grading process, the final fresh tea leaves are seriously damaged
In the utility model patent 201120157386.9, fresh tea leaves are classified by mea

Method used

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  • Equal-diameter roller type fresh tea grading device and method

Examples

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example 1

[0050] Grading of fresh hand-picked tea leaves: Before grading the fresh tea leaves, first select 3 sections of screens according to the size and grade quantity of the target fresh tea leaves, the sizes are: 6mm×6mm, 10mm×10mm, 13mm×13mm, and install them on the drum frame 7-1. According to the kind of the fresh tea leaves and the composition of the fresh tea leaves at all levels, the drum inclination angle when setting the classification is 6°, the drum rotating speed is 8r / min, and the feed rate is 2.0kg / min by the controller 5. After setting, the lifting mechanism 3 starts to adjust the inclination angle of the drum to the set value; after a 10s delay, the power source 2 starts to accelerate the drum 7 to the set value; After the conveying speed of belt 4-3 accelerates to the set value, air separation fan 4-4 and cleaning fan 8 start. After a delay of 10s, the controller gives an alarm, and the workers start loading materials. The worker puts the fresh tea leaves on the ...

example 2

[0052] Grading of machine-picked fresh tea leaves: Before grading the fresh tea leaves, first select 3 sections of screens according to the size and grade quantity of the target fresh tea leaves, the sizes are: 10mm×10mm, 15mm×15mm, 20mm×20mm, and install them on the drum frame 7-1. According to the kind of the fresh tea leaves and the composition of the fresh tea leaves of all levels, the drum inclination angle 6°, the drum rotating speed 16r / min, and the feed rate 1.5kg / min when setting the classification are set by the controller 5. After setting, the lifting mechanism 3 starts to adjust the inclination angle of the drum to the set value; after a 10s delay, the power source 2 starts to accelerate the drum 7 to the set value; After the conveying speed of belt 4-3 accelerates to the set value, air separation fan 4-4 and cleaning fan 8 start. After a delay of 10s, the controller gives an alarm, and the workers start loading materials. Workers put the fresh tea leaves on the...

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Abstract

The invention discloses an equal-diameter roller type fresh tea grading device and method, and belongs to the field of agricultural machinery and equipment. According to the equal-diameter roller type fresh tea grading device, a roller is installed in an inclined manner, each segment of the roller is equal in diameter and length, working parameters can be displayed and adjusted, an air outlet of an air separation fan is located below a feeding belt of a feeding mechanism, and an air outlet of a screen cleaning fan is located above the roller. Due to the equal-diameter structural design, the grading rate and grading speed are improved; and a controller is used for monitoring the working process, so that the grading precision is improved, and the labor intensity is reduced. The air separation fan is used for separating leaves and buds to realize primary grading; the screen cleaning fan is used for blowing the fresh tea leaves blocking the meshes to the roller, so that the screen blockage rate is reduced, and the grading rate and grading speed are increased. The screen mesh can be replaced so as to adapt to different grading requirements. The equal-diameter roller type fresh tea grading device can realize regulation and control of the roller inclination angle, the roller rotation speed and the feeding rate.

Description

technical field [0001] The invention belongs to the field of agricultural machinery equipment, and in particular relates to a method for grading fresh tea leaves. Background technique [0002] The fresh tea leaf classifier is an important tea processing machine in modern agriculture. The fresh tea leaves are classified by the classifying device before processing, which can improve the quality of the finished tea leaves. At present, the working principle of the main fresh tea classifiers at home and abroad is basically the same. They all use sieve holes with different apertures to separate different grades of fresh tea leaves, so as to achieve the purpose of classification. [0003] After retrieving the invention patent 200810059580.6, the drum of the classifier is designed as a cone-shaped cylinder to facilitate the discharge of fresh tea leaves, but the diameter of the feed port of the drum is small, which limits the classification output of the classifier; the sieve apertu...

Claims

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Application Information

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IPC IPC(8): B07B9/00B07B1/22B07B1/42B07B1/46B07B1/55B07B4/02
CPCA23F3/06B07B1/22B07B1/42B07B1/55B07B4/06B07B9/00B07B1/4609B07B4/02
Inventor 胡永光李建钢杨叶成田金涛江丰王升刘建锋
Owner JIANGSU UNIV
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