New technology tower compound fertilizer optimization of new technologies

Fertilizer production of high-end energy-efficient new technologies - acid spray granulation pipe reactor technology Xinxiang City Weiyuan Chemical Technology Co., Ltd. based on the characteristics of domestic and urea-based compound fertilizer plants and problems, bold innovation, After several years of continuous improvement, the development of a suitable urea, urea-based compound fertilizer production of new technology - acid pipe reactor spray granulation of new technology, which solves the urea-based compound fertilizer production prevalent scarring of equipment, the production environment is poor, poor adaptation of raw materials, even poor product appearance and nutrients, caking, long-term stable operation and poor, take advantage of the process steam urea, urine, ammonia gas, air, public works circulating water, electricity, etc., can greatly reduce fixed asset investment and operating costs. First, the main features of acid spray granulation fertilizer production of new technology: 1, the use of a tubular reactor and gas ammonia ammoniated technology to improve material properties and granulation granulation conditions, granulation temperature of 70-80 ℃, making grain into a ball rate of 70-80%. 2, the use of some efficient drying technology, improve dry strength, product moisture reaches ≤1.5%. 3, stove using clean fluidized bed combustion technology, improve the heating effect, tons of fat coal consumption ≤15kg. 4, the system returns the screening material to use hot, hot big grain crushing technology, make full use of the system heat. 5, screening equipment and efficient self-cleaning screening using new technology to improve screening efficiency and product particle uniformity, φ2.0-φ4.0mm particles ≥98%. 6, cooling using a unique new technology and efficient cooling, reducing packaging as much as possible temperature. Second, the acid spray granulation fertilizer production run features of the new technology: 1, the product does not cake. Product moisture ≤1.5%, product packaging temperature ≤40 ℃, product particle strength ≥25N, smooth and rounded appearance, uniform particles φ2.0-φ4.0mm particles ≥98%, the product through a simple anti-caking coating treatment can be achieved six months does not agglomerate. 2, adjust the nitrogen content of the product range, the nitrogen content can reach ≥30%, can produce NPK (such as 30: 5: 5), but also fertilizer production units (such as grain nitrogen 25: 0: 0) and two Yuan fertilizer (such as 30: 0: 5). 3, convenient switching product variety, can produce many types of fertilizer products and more varieties, can produce urea-based type, but also the production of chlorine-based model, also produce sulfur-type and Nitro. 4, the production system flexibility, adaptability of raw materials. 5, expanding variety of raw materials, wet ammonium chloride, wet potassium chloride, calcium superphosphate, calcium magnesium phosphate, calcium hydrogen phosphate and other low-cost raw materials are heavily used. 6, the device does not scarring, non-blocking, can achieve long period of continuous and stable operation. 7, the process is simple and convenient maintenance operations and production management, good production environment, it can achieve discharge standards and clean and civilized production. 8, investment, the most economical operation. Compared with the same type of investment in fixed assets was reduced by 30% to 50% smaller footprint, reduce coal consumption by 50%, reduce power consumption by 25%, reduce the cost 50-75 yuan tons of fertilizer. Third, the practical situation in the process most of the technology has been successfully put into operation on multiple sets of domestic urea-based compound fertilizer plants, and highlights the unique obvious advantage. The process is very suitable for the new urinary urea-based compound fertilizer project, but also for upgrading existing enterprises as well as non-urea fertilizer production plant.