Products

Hollow blade dryer

Yongbang company is a professional manufacturer of blade drying machine. The blade drying machine with wedge-shaped structure is the first generation of traditional products in China. It is a low-speed stirring drying machine with conduction heating. A jacket is arranged on the dryer cylinder, and a hollow paddle is arranged on the hollow shaft, in which a heat carrier is introduced. Under the agitation of the stirring paddle, the wet material conducts sufficient heat and mass transfer with the cylinder and the hot surface of the paddle to achieve the purpose of drying. The structure is generally horizontal, biaxial or four-axis form.

Category: Sludge dryer series

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Description

Working principle

The company has made a series of improvements and optimizations especially for transmission, thermal expansion, blade structure, welding process, sealing, etc., which greatly improves the performance and service life.

Features

The heat required for drying is mainly provided by the hollow blade wall surface arranged on the hollow shaft, and the heat transfer of the jacket wall surface only accounts for a small part, so the heat transfer area per unit volume equipment is large and the area is small.

The machine adopts conduction heating method for heating, and all heat transfer surfaces are covered by materials, which reduces heat loss; the heat utilization rate is high.

The blade adopts the size head inclined surface structure, which has a certain extrusion dispersion ability and can improve the heat transfer effect of the blade. The dispersion force generated by the joint movement of the inclined face filter cake or powder particles of the rotating blade makes the material attached to the heating surface easy to fall off; in addition, due to the reverse rotation of the two-axis blade, the alternately segmented extrusion expansion has the function of stirring and shearing, thus improving the drying efficiency.

Can achieve continuous, fully enclosed operations, reduce labor and dust emissions.

Exhaust gas treatment system generally adopts the form of negative pressure, optional cyclone separator, bag or water film dust collector, in order to reduce the exhaust air volume and dust.

Because the blade is a large and small head splicing structure, the upper and lower distribution design; The scraper angle is small, and the pushing force is not enough; The welding gravity of the blade is prone to corrosion, leakage and other problems. Moreover, the whole equipment needs to be tilted, and the equipment has uneven stress, large resistance and high maintenance rate, so the equipment is not easy to be enlarged. The single unit area of the double-shaft paddle drying machine is generally designed to be less than 150 m2.

Technical parameters

Configuration	Dual Axis										four-axis
Model	Type 5	Type 15	Type 20	Type 40	Type 60	Type 90	100 type	120 type	150 type	200 type	300 type
heat transfer area	5	15	20	40	60	90	100	120	150	200	300
Host Power	4	15	18.5	30	45	55	75	90	110	132	220
Remarks	Use different materials and configurations according to different characteristics and requirements

DYG horizontal disc dryer

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