Kin of bentonite flash dryer using natural gas direct-fired, using cyclone and bag filter on the collection and exhaust treatment products. The material, equipment and product contact parts are not Xiufang production. Clean air through the heat exchanger is heated by bubbling air inlet to the appropriate speed is screwed into the bottom of the drying chamber of the annulus, and then press the tangential direction into the drying chamber rotating flash drying, and spiraling rise: Also, the material is by a variable speed feeder dosed tower. In the drying tower, hot air with sufficient material, quality-heat conversion efficiency, the dried powder material conveyed together along with hot air to the separator, where the finished packaging and collection flash drying, and the exhaust gas is further treated by the dust removal means back empty. Our use of a flash dryer to dry vitamin B1 intermediates, this set of equipment may be a moisture content of 30% of the material is dried to 0.5% or less flash drying system, and the hourly output of 700Kg. Equipment inlet air temperature and the air temperature was 130 ℃ and 80 ℃ flash dryer airflow to protect while drying stable raw material activity. In terms of materials and equipment, and materials in contact with a stainless steel surface, the rest is carbon steel, making the device more difficult to use the economy. Finally, a cyclone and a bag filter to collect material. Flash drying system _ Kinder dry (certified) _ flash drying provided by Changzhou Drying Equipment Co., Kinder. Kinder Changzhou Drying Equipment Co. (www.jian-da.com) is an industry leader in Changzhou, Jiangsu, drying equipment, over the years, the company implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Kinder dry leadership with the staff warmly welcome all inquiries negotiations to create Kinder dry a better future.