Compact high-efficiency degumming and washing device for coffee fresh fruits

Abstract

The invention discloses a compact high-efficiency degumming and washing device for coffee fresh fruits. A main shaft is vertically arranged on a base, and is connected with a driving mechanism; a transporting part, a degumming part and a washing part are arranged along the main shaft I; a feeding opening is formed in the lower wall of the transporting part; a housing I of the transporting part isfixedly arranged on the base; spiral blades I are coaxially and fixedly arranged on the main shaft, and are in clearance fit with the housing I; a stirrer of the degumming part is protruded, and two ends of the stirrer are fixedly arranged on the main shaft; a filter net is coaxially arranged on the stirrer; a housing II is coaxially arranged on the outer side of the filter net; a gum outlet is fixedly formed in the lower side wall of the housing II; a bracket of the washing part is rotatably connected with the upper part of the main shaft I; a housing III is fixedly arranged on the bracket; spiral blades II are coaxially and fixedly arranged on the main shaft I, and are in clearance fit with the housing III; an inlet of the washing part is formed in the side wall of a housing III, at theupper parts of the spiral blades II; a water spraying pipe is arranged at the upper part of the spiral blades II, on the housing III; and the discharging part is fixedly arranged on the side wall of the housing III. The compact high-efficiency degumming and washing device for coffee fresh fruits disclosed by the invention has the characteristics of being compact in structure, high in degumming andwashing efficiency, free from being blocked during working, and free from breaking of fresh fruits.

Description

technical field [0001] The invention belongs to the technical field of agricultural machinery, and specifically relates to a compact and efficient fresh coffee fruit degumming cleaning device with compact structure, high degumming and cleaning efficiency, no jamming in work, and no broken fresh fruit. Background technique [0002] Coffee is the world's three major beverages and one of the agricultural products with the largest trade volume in the world. It is also the third largest primary product in world trade after petroleum and wheat. [0003] Factors Affecting Coffee Quality In addition to variety, cultivation management level and ecological climate, post-harvest treatment is a very important factor affecting coffee quality. Therefore, in the widely used wet processing, the fresh coffee fruit should be peeled in time after picking, but the surface of the peeled coffee beans will still be covered with a mucus-like pectin substance, which is composed of sugar, enzymes, an...

AI Technical Summary

Problems solved by technology

However, the method of washing with water after natural fermentation needs to be cleaned and degummed after 12 to 36 hours of fermentation. Since fermentation tanks and cleaning tanks are mostly set up in the open air, not only the production environment is relatively poor, but also due to factors such as weather changes and inability to turn over in time, it is easy to The degree of fermentation of coffee cherries in the fermentation tank is different, that is, over-fermentation and under-fermentation, which will greatly affect the quality of coffee beans

In addition, although the method of alkali treatment (10% NaOH) has a fast degumming speed and is easy to control, alkali washing will have a negative impact on the flavor of coffee beans, and it is generally only used for the treatment of low-end coffee cherries

There are also horizontal or vertical mechanical degumming devices, which achieve the purpose of degumming by rubbing coffee beans against each other. However, the horizontal degumming machine occupies a large area and the degumming effect is poor. The vertical degumming machine adopts a two-stage vertical structure of the conveying section and the degumming section. , because the discharge port is located in the degumming section, it is easy to cause some coffee beans to flow out of the discharge port before the degumming is completely degummed under the condition of high-speed degumming rotation, resulting in incomplete degumming and accumulation of coffee beans in the upper part of the degumming section However, increasing the pressure of mutual extrusion will cause a high breakage rate of coffee beans, and the horizontal and vertical degumming machines not only need matching cleaning devices in the later stage to clean the degummed coffee beans, but also generally have low degumming efficiency and low degumming during the degumming process. The problem of easy jamming affecting efficiency

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