Powder drying system and method based on membrane method dust collecting technology

一种基于膜法收尘技术的粉体干燥系统及方法

Abstract

本发明涉及一种基于膜法收尘技术的粉体干燥系统及方法,该粉体干燥系统由对流干燥器(Ⅰ)、膜法收尘器(Ⅱ)、引风机(Ⅲ)、鼓风机(Ⅳ)、预热器(Ⅴ)、换热器(Ⅵ)组成,并通过管道进行连接。其步骤包含:湿粉体(c)进入对流干燥器(Ⅰ),自然空气(a)经过预热器(Ⅴ)预热后进入换热器(Ⅵ),成为高温空气(f),再由底部进入对流干燥器(Ⅰ),对湿粉体进行干燥,干燥后的成品粉体由冷却空气(m)冷却后,排出对流干燥器(Ⅰ);干燥粉体后的气体(g)在引风机(Ⅲ)作用下携带部分粉尘进入膜法收尘器(Ⅱ),粉尘被膜截留得到成品粉体(k),透过膜的高温洁净气体(j)进入预热器(Ⅴ)对空气(a)进行预热。
The invention relates to a powder drying system and a method based on a membrane method dust collecting technology. The powder drying system is formed by a convection dryer (I), a membrane method dust collecting device (II), an induced draft fan (III), an air blower (IV), a preheater (V) and a heat exchanger (VI), which are connected through a pipeline. The method comprises the following steps that a wet powder body (c) enters into the convection dryer (I); natural air (a) enters into the heat exchanger (VI) through the preheater (V) to form high-temperature air (f) and enters into the convection dryer (I) from the bottom part to dry the wet powder body; the dried finished powder body is discharged out of the convection dryer (I) after being cooled by cold air (m); gas (g) used for drying the powder body carries part of dust to enter into the membrane method dust collecting device (II) under the action of the induced draft fan (III); the dust is intercepted by a membrane to obtain a finished powder body (k), and high-temperature clean gas (j) penetrating through the membrane enters into the preheater (V) to preheat the air (a).

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Cited By (1)

    Publication numberPublication dateAssigneeTitle
    CN-105115283-ADecember 02, 2015南京大学环境规划设计研究院有限公司一种气流节能干燥设备与气流节能干燥方法