3results about How to "Extended supply time" patented technology

The utility model relates to the technical field of steel belt storage, and provides a steel belt storage rack which comprises a rack, a conveying device, a conveying device and a conveying device. A plurality of first guide wheels are arranged on the rack; a plurality of second guide wheels are arranged on the rack; the first guide wheel and the second guide wheel cooperatively work to provide a continuous guide path and storage for the steel belt entering the rack; when an existing steel strip coil and a new coil are welded, the second guide wheel gets close to the first guide wheel, the supply time of the remaining steel strips in the machine frame is prolonged to the maximum extent, and therefore it is ensured that in the welding period of the new and old steel strips, the steel strip storage frame can continuously provide the steel strips for a machining equipment production line by prolonging the use of the remaining steel strips in the machine frame, and the production efficiency is improved. And continuous feeding is maintained, it is ensured that the production process of machining equipment is continuously conducted, and production stagnation caused by steel belt replacement is avoided.

The invention discloses a slow-release synergistic nitrogen-phosphorus-potassium compound fertilizer and a preparation method thereof, and relates to the technical field of compound fertilizer preparation. The compound fertilizer comprises 35-50 parts of nitrogen fertilizer, 30-45 parts of phosphate fertilizer, 20-35 parts of potash fertilizer, 8-18 parts of slow release agent and 5-9 parts of synergist. The slow-release fertilizer has the beneficial technical effects that through slow-release components such as the coated urea, nutrients can be slowly released in a relatively long time, so that crops can continuously obtain required nutrients in the whole growth cycle, and the problems of excessive nutrient supply in the early stage and insufficient nutrients in the later stage of a common compound fertilizer are avoided; the slow release of the nutrients can also reduce loss and waste caused by rapid release of the nutrients, and the utilization rate of the fertilizer is improved.

The present application belongs to the technical field of shaft flow pump seal flushing, and particularly relates to a machine seal flushing self-adaptive compensation system for a polyethylene shaft flow pump. The present application comprises a pump body with a pump cavity, and a front end bearing arranged in the pump body. The present application is characterized in that it comprises a compensation type piston cylinder with an axis arranged vertically, and a return cavity of the compensation type piston cylinder is located above a feed cavity. An oil inlet compensation pipeline is connected to the return cavity at one end and to a front end flushing pipeline where a high speed pump is located at the other end. A balance pipeline is connected to the feed cavity at one end and to a lubricating cavity where the front end bearing is located at the other end. The present application realizes an instant online compensation function of flushing liquid after interruption of flushing, thereby ensuring continuous lubrication and cooling effect of the bearing in the pump cavity and ensuring safety and continuity of high density polyethylene production.