Specifications

Gypsum Powder Production Line has advantages  as follow: 
Features of first grind and second bake:
    Compared with that of first grind and second bake, the largest advantage of this technique is great energy consumption reduction. The reason lies in: great plaster stones are ground into powders with diameter less than 0.2mm, which increases the specific surface when calcining, enlarges contact area with heat medium, improves calcining heat exchange efficiency and lowers energy consumption greatly; the disadvantages are three powder pollution positions in technical process, which shall be solved with dust-removing equipment.

Features of two other techniques:
First bake and second grind: due to high energy consumption and low production capability of this technique and that the quality of the products is hard to control and is unstable, at present, it is a kind of backward technique and is seldom adopted. Only a few small factories are still applying it.
Integration of grind and bake: this technique has good features: low energy consumption, small investment, high efficiency, stable quality of the products and small area coverage. Besides, the dust volume is concentrated and is easy for protecting environment. However, it is not mature at home and only BNBM imported from German one set of Peters-mill, which runs to manufacture thistle board. 

Introduction

With the development of gypsum industry, there is a large demand for quantity and high quality of

 gypsum powder. Therefore, the high level of gypsum powder production technology is required. 

In the process of gypsum powder production, drying and dewatering is the key link, which is also

 the most difficult one to control. In order to solve this problem, we develop a new type of drying 

and dewatering equipment---ebullience calciner, which is produced based on the exploring of the gypsum production filed. 

Following is the brief introduction of the gypsum production technology and ebullience calciner 

working principle.