4results about How to "Won't waste" patented technology

This application relates to a cementing device and control method. The cementing device includes a centrifugal pump, a plunger pump, and a lubrication system. The lubrication system includes: a lubricating oil pump with a first lubricating oil outlet and a second lubricating oil outlet; a first distribution valve with a first inlet, at least one first outlet, and a third outlet, wherein the first outlet is connected to the packing lubrication end of the centrifugal pump, and the first lubricating oil outlet is connected to the first inlet; and a second distribution valve with a second inlet and at least one second outlet, wherein the second outlet is connected to the packing lubrication end of the plunger pump, and the second lubricating oil outlet is connected to the second inlet, or the second lubricating oil outlet is connected to the first inlet, and the second inlet is connected to the third outlet. According to the cementing device of the present invention, it is possible to separately control the supply of lubricating oil to the plunger pump packing or to the centrifugal pump packing, thus avoiding both lubricating oil waste and insufficient lubrication of either the centrifugal pump packing or the plunger pump packing.

The present application relates to a kind of tailings classification scanning device, belong to mineral separation technical field.The device includes: tailings separation unit, with the separation cylinder upper end of mineral separation equipment is connected or with separation cylinder, including tailings overflow weir, configured to discharge tailings in the separation cylinder from the tailings overflow weir;Tailings classification unit is arranged in the periphery of the tailings separation unit, including tailings classification overflow weir, configured to discharge the tailings classified processing, to obtain tailings of different levels;The height value of the tailings classification overflow weir is less than the height value of the tailings overflow weir.The present application can realize the multistage separation of tailings, to obtain different grade and the stable component content of tailings, to reduce the waste of mineral resources, improve the component content qualified rate of each grade product.

This invention relates to an abalone active peptide with the amino acid sequence DYPRPW. The preparation method is as follows: Abalone viscera are enzymatically hydrolyzed using alkaline protease to obtain an enzymatic hydrolysate; the enzyme is then inactivated after hydrolysis. The hydrolysate is centrifuged, coarsely filtered, and ultrafiltered to collect multiple polypeptides with a molecular weight less than 1 kDa, which are then freeze-dried into powder. The freeze-dried polypeptide powders are sequenced to obtain multiple polypeptide sequences; repetitive sequences are deleted, and multiple non-repetitive polypeptides are screened. Using the protein HMGR as a receptor, the obtained polypeptides are virtually screened using docking software, and the polypeptides with the highest docking scores are selected for solid-phase synthesis to obtain the abalone active peptide. This invention's abalone active peptide can effectively inhibit the accumulation of total cholesterol and total triglycerides in cells, exhibits a high inhibition rate of cholesterol micelle solubility, and has lipid-lowering effects. It can be used to prepare adjuvant lipid-lowering drugs, and compared with traditional lipid-lowering drugs, it has the advantages of high specificity and fewer toxic side effects.