Spray dryer

• Main Author: LIU ZUSONG
• Format: Patent
• Language: English
• Published: 29.04.2015
• Subjects: PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TRANSPORTING

The utility model relates to a spray dryer. The spray dryer comprises an air inlet volute and a hot air distributor which are arranged on a top cover of the spray dryer; the air inlet volute is connected with an air inlet by a flange; the bottom of a box body is in an inverted cone shape, a discharge hole is formed in the top of the inverted cone, and an air outlet is formed in the side of the box body; the air outlet is connected with a dust collector; the air inlet volute comprises an outer volute and an inner volute, and the part between the outer volute and the inner volute is filled with heat preservation cotton; an air distributing piece is arranged in the volute; the hot air distributor is fixed on the top cover by a puller bolt and is connected with the air inlet volute by a flange; the hot air distributor comprises an inner tapper pipe and an outer tapper pipe, and the part between the inner tapper pipe and the outer tapper pipe is filled with heat preservation cotton; the inner wall of the inner tapper pipe is provided with an air guide thread; the hot air distributor is connected with an atomizer; wet material is atomized into fog particles by the atomizer through a high-pressure pump and then enters the dryer together with hot air. After the spray dryer is used, solid-liquid mixed pulp is rapidly and efficiently dried into powder and granule products with low energy consumption. The spray dryer is environmentally friendly, free from pollution, simple in production process and easy to control.