Solid axial flow model in a new type reactor is studied in this paper,Single particle is deduced by using the vector analysis under the effection of spiral flight and gravity separately.

The cold rolling with aces of two taper rollers in different planes is so far the most advanced process for the forming spiral flights in the world.

It makes possible and practicaI the manu-facture of spiral flight and other products with good flexibiiity, high efficiency,and Iow consumptiOn,In this paper,the theoretical study on the processes of cold-rolling with conical rollers.

Finite element analysis of stress field for spiral vane of newly developed reactor;

The spiral vane is a basic component of spiral machine.

When the spiral vane spreads on a lead which is less than one,an expansion map for the whole lead must be drawn and the expansion map must be accurately segmented.

Pulling forming method of helical vane;

Cold-drawing forming method of helical vane combination;

Shearer drum helical vane's figuration includes cutting, pressing and sealing, at the same time the cutting is one of the most important procedure.

According to the characteristics of the wear failure of the screw blade, this articlemakees a detailed analysis about the blade operations, qear conditions, wear mechanism and themam factors affecting the blade wear.

It emphatically introduced a design process of two important parameters-the screwing up angle of the screw blade and the pitch.

Analysis of the working performance of helical blade hydraulic pump;

In order to meet the demands of production technology and achieve rational filling quantity and rate, stabilize the filling process,the author described the following items to be improved:thread pitch,diameter of helical blade, diameter of belt roller,cone belt of charge