DRANNIKOV ALEKSEJ VIKTOROVICH,Дранников Алексей Викторович
申请号：
RU2012109362/13
公开号：
RU0002489030C1
申请日:
2012.03.12
申请国别(地区):
RU
年份:
2013
代理人:
摘要：
FIELD: chemistry.SUBSTANCE: invention relates to a method of producing a free-running form of powdered choline chloride from an aqueous solution thereof. Squeezed beet pulp with moisture content of 82…84% is preheated in a heating chamber to temperature of 80…90°C, and then dried in a vibration drier which is superheated with steam at atmospheric pressure with temperature of 135…140°C and speed of 1.5 m/s. Drying is carried out in a pulsed vibrofluidised bed to moisture content of 12…13%, wherein in the working chamber of the vibration drier, the layer of the product is brought into a vibrofluidised state for 3 s every 60 s by a gas-distributing array. The array has amplitude and frequency of vibration of 7 mm and 12.5 Hz, respectively. Spent superheated steam at temperature of 105…110°C from the vibration drier is first fed into a cyclone purifier for purification from a fine fraction which is combined with dried beet chips, and the purified spent superheated steam is then divided into two streams. One stream, formed when drying the product, is fed into a calorifier, where it is condensed and atmospheric air is heated through the separating wall of the calorifier to temperature of 65…70°C. The other stream is fed by a fan into a steam superheater in order to be superheated to temperature of 13.5…140°C with heating steam obtained in a steam generator at temperature of 150…155°C, and then into the vibration drier to form a recirculation loop. The condensate of the heating steam at temperature of 140…145°C, after the steam superheater, is combined with the condensate of the spent superheated steam at temperature of 95…100°C after the calorifier and fed into a condensate collecting tank. The obtained condensate mixture at temperature of 120…125°C from the condensate collecting tank is fed into the heating chamber for preliminary heating of the squeezed beet pulp, followed by returning into the steam generator to form a recirculation loop and removing excess condensate
