The necessity of screw conveyor blade corrosion resistance

The screw conveyor is widely used by coal, building materials, chemical industry as a continuous conveyor department of food processing and machinery etc., suitable for horizontal or inclined conveying powder, granular and small bulk materials, such as coal, coal, cement, grain, EPC companies often with a belt conveyor, stacker reclaimer, apron feeder the use of with the use of heavy plate feeder, screw conveyor in life depends mainly on the spiral blade life. The spiral blade mainly stretch forming, rolling molding, die casting, extrusion molding, molding method for different section shape of spiral blade, large The majority of methods to obtain the same thickness of spiral blades, analysis and study of the working conditions of the spiral blade on the development of spiral blade forming methods, increase the wear resistance of the blade is essential.
The spiral conveyor leaf without wear, against the cylinder wall, the sealing ring for drive shaft support, keep the center position of the cylinder. The screw conveyor shaft rotating in the cylinder wall, the wall bound swing is small. Parts of the sealing force uniform screw conveyor drive, the drive box effective sealing. Blade wear, when rotating lost binding cylinder wall of the blade, the swing range increased. The helical blade abrasion of the shaft under the action of gravity to a certain tilt, the upper wall of the spiral shaft gap distance increase, the lower clearance decreases. That is the heart line screw shaft down tilt, resulting in the increase of the upper seal the ring cavity, the lower ring cavity gap Small, the sealing and oil ring driving sites caused certain extrusion. When rotating form grinding, lead to wear copper sleeve. And copper sleeve wear, to further increase the drive shaft center line. The magnitude of settlement and inclination of blade wear is exacerbated, and the gap between the upper wall of the cylinder is further increased. When the effective elastic range of the gap between the more than sealing in the seal cavity. It contains into the muck muck into the gravel and intensify the seal wear. Eventually driving box is polluted.
In order to prevent the problem of screw conveyor blade wear and driving box pollution, influence of the screw conveyor working efficiency and service life of the screw conveyor blade and other parts easy to wear resistant material spraying, it can not only protect the machine equipment materials by water erosion, cavitation erosion, can prevent the body from corrosion. It is the key to select the suitable wear resistant material with high wear resistance and wear resistance before the wear resistance of the material.