Tea winnower

Abstract

The invention provides a tea winnower. The tea winnower comprises a winnowing channel and a feeding device. The feeding device comprises a negative-pressure case, a uniformizing device and a conveying belt. The negative-pressure case comprises a negative-pressure dust removing chamber. A rotation cylinder is sleeved with the negative-pressure dust removing chamber in a rotary mode, and the end, close to the conveying belt, of the rotation cylinder inclines downwards. Multiple screen holes are formed in the position, in the negative-pressure dust removing chamber, of the wall of the rotation cylinder uniformly. A rotation gear ring is arranged at one end of the rotation cylinder, and a stirring device is arranged in the rotation cylinder in a rotary mode. The uniformizing device comprises multiple horizontal tooth brushes and a lead screw. The horizontal tooth brushes are fixed to the lead screw. The axial direction of the lead screw is perpendicular to the length direction of the conveying belt, and the lead screw is arranged on first supports on the two sides of the conveying belt in a rotating mode. The uniformizing device further comprises a longitudinal tooth brush fixed on a second support on the front side of the horizontal tooth brushes. The tea winnower is ideal in air flowing field, high in winnowing quality, free of waste and pollution and particularly applicable to winnowing of tea.

Description

technical field [0001] The invention relates to winnowing equipment, in particular to a tea winnowing machine. Background technique [0002] The winnowing machine is an important piece of equipment in tea processing. The principle of the tea winnowing machine is to use the particles with different endoplasms to have different aerodynamic characteristics. Impurities such as sand, dust, and green and yellow floating leaves in the tea are classified according to the particle size. It is the key equipment in commercial tea processing equipment to distinguish the quality of tea according to the position of tea drift. The air-selected tea requires that the aerodynamic characteristic parameter-drift coefficient of the tea flowing out from the same tea outlet of the air-selector is within the specified range, and if it exceeds this range, the separation is unclear. The main factors affecting the quality of tea winnowing are the wind speed distribution of the wind channel outlet of...

AI Technical Summary

Problems solved by technology

The original tea winnowing machine in our country adopts an open structure, and the wind flow field in the winnowing room is relatively ideal, but with the continuous improvement of environmental protection and dust removal requirements, the original model can no longer meet the needs of the society

However, the quality of air selection of today's environment-friendly tea winnowing machines is generally not as good as that of the open type. The vortex above the tea mouth should be one of the main reasons affecting the quality of its winnowing

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