2results about How to "Reduced separation loss" patented technology

This invention discloses a low-loss, high-efficiency grain threshing device, relating to the field of agricultural machinery and equipment technology. It includes a threshing drum, a concave screen, a forced-feed auger, and a flow guide hood. The concave screen is fitted around the outside of the threshing drum, the forced-feed auger is located at the feed end of the threshing drum, and the flow guide hood is fitted around the forced-feed auger and connected to the front end of the concave screen. The threshing drum is equipped with threshing elements. The threshing rods on the front, middle, and rear of the threshing drum are respectively a first threshing rod group, a second threshing rod group, and a third threshing rod group. The first threshing rod group consists of 3-4 rods per group, the second threshing rod group consists of 4-6 rods per group, and the third threshing rod group consists of 2-3 rods per group. The height of the second and third threshing rods is twice the height of the first threshing rod. The gap between the first and third threshing rods in the same group is greater than the gap between the second threshing rods in the same group. This invention is beneficial for improving threshing efficiency, reducing threshing losses, and achieving high-efficiency grain threshing with low loss.

The utility model provides a kind of animal serum sample collection device with precooling pipetting function, it is related to blood detection technical field, mainly for solving the problem of large blood sample separation loss in prior art. The animal serum sample collection device includes blood collection tube, pipette, cooling water jacket and pipette plunger, wherein, cooling water jacket is sleeved on blood collection tube, for cooling the blood in blood collection tube;Transparent pipette plunger can be sealingly inserted into blood collection tube, through the step hole is arranged in pipette plunger, small hole is slender in lower part, large hole in upper part can be inserted into pipette.The utility model separates serum, only about 1-3% of total serum is left in slender small hole, which greatly reduces the separation loss of serum sample.In addition, the utility model can also accurately remove gel layer to obtain pure blood cells, and the blood can be cooled to 2-8℃ within 3 minutes, to avoid blood clotting and other problems.