1.6 pulsed fluidized bed for a number of easy flow of materials and the drying temperature must not exceed the crystalline drug 50 ~ 80 ℃, the development of the pulsed fluidized bed. Pulsed fluidized bed changed the traditional air fluidized bed constant periodic air fluidized bed dryer Which is strong, by adjusting the air flow pulse frequency or pulse airflow conduction rate, the gas flow through the orifice or fluidized zone change periodically, the material is dried. The main structure is characterized by drying the wet around the bottom of the hot air inlet tube fitted with a few fitted with pulse valve on each of the hot air pipe, they open at a certain frequency and order, on time and bed thickness and material properties related made a fluidized bed dryer, when the gas suddenly introduce a fluidized bed drying machine factory in Changzhou, in a short time to form a pulse, intense fluidizing the particles, prompting conduct intense heat and mass transfer between the material, When the valve is closed, fluidized bed state gradually disappears, the material is in a stationary state, while still pass into the portion of the gas through the bed so that the next pulse can be effectively transmitted in the bed. The advantages: high heat transfer coefficient, drying time is short, reducing air consumption, power consumption is low. Pulsed fluidized bed can overcome channeling dead zones and local overheating of the drawbacks of traditional common fluidized bed, which can be used to handle viscous, easy agglomeration and heat-sensitive materials, such as tetracycline antibiotics. Energy use is not sufficiently fluidized bed drying equipment exists the problem of insufficient energy use, leading to the drying efficiency is not ideal, increase energy consumption. If the material in a fluidized drying process and close contact of hot air, there is the problem of incomplete heat exchange, not only reduces the drying efficiency, and increased energy consumption. GEA Group, a subsidiary of Germany [1] specially designed intake air more evenly and smooth the sieve, sieve allows the flow of heat exchange in the drying process more fully and reasonable, and reducing the energy consumption of heated air generated fluid bed dryers, can significantly enhance the economic efficiency. Sulzer of Switzerland and Japan Nara Machinery [2] Production of built-in heat pipe fluid bed dryer, fluidized bed heat all changed in the past by the hot air into the method, it will tubular heat exchanger immersed in the stream State of the dried material, the material required heat of dehydration are supplied with hot air from the heat exchanger and the fluidizing pipe, with a smaller amount of air drying to meet the requirements of the stream, since some of the heat from the heat transfer tube heat medium conducting , thus greatly improving the thermal efficiency, and the heat medium is usually steam, oil and so on. In addition, we can also use a new heating technology or new energy to improve the thermal efficiency of the equipment. As the heat transfer tubes implanted in the bottom of the bed, spray a liquid latent heat heat exchange, the use of microwave heating and other forms of further improve the thermal efficiency of the fluidized bed drying equipment, thereby reducing energy consumption, to achieve the purpose of the economic environment. Factory Changzhou fluidized bed drying | fluidised bed dryers | drying step by step Drying Equipment Co. Changzhou. Drying Equipment Co. Changzhou step (www.yibu.com) strong, credible, in Changzhou, Jiangsu drying equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improve further dried innovative ideas will lead into the brilliant and you work for a better future!