Su Cheng spray drying equipment drying spray drying equipment in Jiangsu

Energy-saving measures spray 1) increasing the inlet temperature and outlet temperature is increased to reduce inlet temperature, can reduce heat consumption (production capacity constant). Dryer heat consumption is usually expressed as the ratio of calories consumed (calories needed for 1kg of water evaporated, and sometimes the heat required per kg product represented). Increase inlet temperature, can significantly reduce heat consumption. 2) increase the feed solution was spray-dried solids volatiles were evaporated expensive method, therefore, get the best conditions for thermal efficiency is always possible to improve the liquid feed solid content to the maximum. 3) increasing the feed temperature increase feed temperature (using waste heat or steam preheat indirect preheating), can reduce the amount of heat per unit mass of dry product consumption. Preheating feed liquid, to reduce the viscosity of feed solution, atomization performance improvement; prevent liquid crystalline material, clogging atomizer; high feed temperature, droplet evaporation in the dryer directly, there is no warm-up phase. 4) emissions will be part of the recycling process in open cycle, the exhaust gas overall emissions into the atmosphere, which is about to lose 10% to 40% of total calories. Especially dry air outlet temperature is particularly high, the greater the heat loss. If the outlet temperature exceeds 120 ℃, the use of part of the exhaust gas recirculation technology that can save up to 20% of dye. 5) the use of waste heat recovery heat exchanger using heat recovery of the exhaust gas can be significant savings in energy. There are two types of heat exchangers, the air - air and air - liquid - air, can be used. 6) the use of a secondary or tertiary drying using two or three drying has the following characteristics:??? In the last stage of drying, the product can achieve a lower moisture content; can obtain lower product temperature; by rating or reunion, you can change the powder particle size distribution; ④ improve the thermal efficiency of the drying process. Chinese medicine spray a fully enclosed, all parts are made of stainless steel, with three purification equipment, filtering the air of 100,000 request. Cylinder and topped with a cold wall means that the wall temperature <80 ℃, drying tower equipped with air brushing tower unit. After the aircraft is dried extract of Chinese medicine powder, coking deterioration phenomenon does not occur, greatly increasing the income powder rate (over 95%), but does not produce the phenomenon of mixed drugs and sticky wall phenomenon. Works medicine extract high-speed centrifugal spray device is centrifugal spray drying technology in particular drying material, is also using high-speed centrifugal atomization allows material dispersed into a mist, and the hot air full access, complete instant dry form drying apparatus powdery finished product. In recent years, the rapid development of drying equipment industry, but our current drying technology, the overall technical level is still lagging behind, it is difficult to meet because of the economic development of related industries and product structure optimization and new product development requirements. Therefore, the required amount of new drying technology is increasingly incremented. Over the years, the domestic drying machine processing methods and processing equipment has also taken a more traditional hand-made, whether the use of function, and are subject to certain influence on the appearance. Moreover, one-piece hand-manufactured components that the size does not guarantee a good interchangeability, to swap drying machine maintenance, wearing parts inconvenience. It is understood that most of China's pharmaceutical, biochemical, chemical and other industries to easily oxide material and containing a liquid organic solvent drying material production, the gap is still using the operating mode heating vacuum entrained production.