Automatic walnut shell and kernel mixture airflow sorting machine

Abstract

The invention discloses an automatic movable walnut shell and kernel mixture airflow sorting machine. The sorting machine comprises a vibratory feeding machine, an automatic material limiting and air adjusting device, a negative pressure fan, a diaphragma juglandis settling box, a cyclone dust collector, a walnut kernel discharging port automatic height adjusting device, a control cabinet and a walnut shell collecting device. The sorting machine is characterized in that a frequency converter controls the amplitude and frequency of a vibrating motor so as to control the material flow of walnut shell and kernel mixtures of different grades, the automatic material limiting and air adjusting device mounted at a feeding port controls the size and the air speed of inlets of materials of different grades, the materials flow into a shell and kernel separation cavity through an impurity removing system and a slide carriage and pass through the negative pressure fan, and walnut kernels are collected from the lower end of the discharging port, and walnut shells pass through the separation cavity and enter an unloading box to be collected. According to the sorting machine, automatic control over the material flow of the shell and kernel mixtures of different grades and the required air speed and air quantity is realized, and the sorting machine is suitable for separation and collection of the shells, the kernels and diaphragma juglandis of different grades generated after mechanical walnut shell breaking.

Description

technical field [0001] The invention relates to an agricultural product processing machine, in particular to a device for separating shells, kernels and heartwood from walnut mechanically broken shells and kernels, and belongs to the technical field of agricultural machinery. Background technique [0002] China is the world's largest producer of walnuts, with the largest planting area and output. There are two main ways to sell walnuts: nut sales and intensively processed products, and walnut intensively processed products can better meet the needs of the market and bring more economic benefits. In the process of deep processing of walnuts, walnut shelling to extract kernels is the basis of walnut intensive processing. At present, there are mainly two types of manual shelling and machine shelling and sorting. Existing artificial cracking of shells to extract kernels has problems such as high labor intensity, low efficiency, high production cost, poor sanitation, and inabili...

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Problems solved by technology

[0003] At present, the airflow separation method is mainly used in the separation of agricultural grain materials, and the effect of airflow separation on the mixed material of walnut shells and kernels after shelling is not good.

The separation devices used in the market for the mixture of walnut shell and kernel mainly have the following disadvantages: 1. Most of the existing separation equipment for the mixture of walnut shell and kernel is designed by referring to the theoretical method of wind selection of grain materials, and the use effect of the equipment is poor, mainly reflected in the shell The rate of kernels, the rate of shells in the kernels is higher

2. At present, the airflow separation device is mainly divided into two types, namely, positive pressure airflow separation and negative pressure airflow separation. The main disadvantage of the equipment using positive pressure airflow separation is that the equipment has a single structure, poor separation efficiency and results, and lack of dust removal device, which makes The environmental sanitation of the working space is poor, and the equipment and equipment using negative pressure airflow separation are high in manufacturing cost, complex in structure, bulky in size, high in space occupancy rate and low in automation

3. The current sorting equipment for walnut walnut shell kernel mixture cannot meet the separation of different grades of shell kernel mixture in a single channel. The main reason is that different grades of shell kernel mixture correspond to different feed volumes and air volumes. Precise control of the feed volume and the required air volume and wind speed requires manual adjustment of the size of the feed inlet and the air volume and wind speed required for the separation of shells and kernels

4. In the actual production process, it is found that the sorting effect of different grades of walnut shell kernel materials has a great relationship with the geometric length of the separation chamber, the relative position of the inlet of the separation chamber and the air inlet of the lower end of the separation chamber, but now Some equipment is a rigid structure and cannot be adjusted, which affects the separation effect

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