Rice Thresher machine Selection Guide

1. Select the type of offline based on the crop. Different crop types and crop varieties, different storage methods and post-processing methods have different methods of threshing. For example, there is a big difference in the threshing characteristics of wheat and rice. The grain of wheat is tightly wrapped in the hull when it is immature, and once mature, the hull is opened, the strength of the connection between the grain and the hull is greatly weakened, and the threshing requirement of wheat is to obtain clean kernels. At the time of harvest, the connection strength between the grain and the hull of what is weak, and the outer shell of the grain is relatively hard and not easily broken. Therefore, the threshing of wheat is generally dominated by rubbing and threshing and impact threshing. The threshing characteristics of rice are different from those of wheat. Even when the maturity is high, the joint strength between the grain and the hull is still large, but the connection between the grain and the cob is relatively weak. Rice is also stored in a different way than wheat, and rice is stored in shells. If it is stored naked, the storage time is very short. Rice grains are brittle and hard to break. Therefore, rice harvesting is mostly carried out by combing and threshing.

2. Compare the performance of the rice thresher machine. It mainly includes threshing efficiency, decreasing rate, loss rate, breaking rate, and cleanliness.

(1) The threshing efficiency is high, and the threshing efficiency refers to the weight of the grain kernels taken off per unit time and unit power.

(2) The removal rate is high, and the removal rate refers to the percentage of the weight of the grain removed by the threshing device and the weight of the donor grain, which is required to be more than 99%.

(3) Low loss rate The loss rate refers to the percentage of the weight loss of each part of the grain threshing machine during the threshing process and the total weight of the threshed grain kernel. Total losses include unremoved loss, entrainment loss, cleaning loss, and splash loss.

(4) Low breakage rate The breakage rate refers to the grain removed from the rice thresher machine. The percentage of the total grain weight of the broken grain, crack, and shell (skin) of the Taobao sale channel and the total grain weight of the removed grain is generally required to be 1.5. %the following.

(5) High cleaning rate Cleanliness refers to the purity of the grain after threshing and clearing of the crop (no spikes, shelled kernels, and broken straw, husks, etc.). The cleaning rate is the percentage of the sample pure grain weight to the total weight of the sample. The cleaning rate of the semi-multiple thresher is required to reach 96% or more, and the Taobao special sale requires 98% or more for the double thresher.

3. Try to choose a rice thresher with good versatility and adaptability. That can meet the needs of a variety of crop threshing, and has good adaptability to the dryness of the crop; reduce the fragmentation of the stem as much as possible to facilitate the multiple uses of the stem; can adapt to a variety of dynamic machinery in rural areas.