kneader mixer working principle
Sigma Kneading machine is a pair of interrelated and rotating Σ paddle produced by the strong shear effect of the semi-dry state or rubbery viscous plastic materials can make the material quickly react to obtain uniform mixing. Kneader has two Σ-type blades, the speed of the two blades are different, according to different processes can be set to different speeds, the most common speed is 42/28 rpm.
Kneading machine can be designed according to the needs of heating and not heating form, heat exchange methods are usually: electric heating, steam heating, circulating hot oil heating, circulating water cooling. Kneading out of a hydraulic dumping dumping, ball valve discharge, such as screw extrusion. Cylinder and pulp and material contact parts are made of SUS304 stainless steel to ensure product quality.
Kneading machine has many functions, such as wide range of functions, wide variety of applications, especially for chewing gum, bubble gum, toothpaste, plastic, rubber, silicone rubber, dye, pigment, ink, food gum base, pharmaceutical agent, architectural coating, carbon, , High viscosity sealant, neutral glass glue, aluminum silver paste, silica gel, pulp, cellulose, battery paste, dye, silicone resin, cosmetics and other industries.
Working Principle of Sigma Mixer
Mixing is the main activity in any industrial blending process. Homogeneous mixing ensure quality of final product which is key for quality finish product. Sigma Mixer perform tangential action kneading through its Z shapes blades. These Z shaped blades rotates in opposite direction to each other which makes mixing really easy. Through option of adjusting RPM of blades one can achieve quality mixing. As some products required slow speed mixing when adding liquid to avoid foaming & overflowing. For discharge of product tilting and screw extruder system can be offered.
Mixing action is combination of various activities which generate vertex for homogeneous mixing operations. Shearing action between blades and side walls resulting reduction of solid product. Ratio of front and rear blade usually is 3:2 for mixing of heavily viscous products.
In case of overlapping mechanism blades overlap one saddle of the bowl. In overlapping action it is essential that the relative position of the two blades are unchanged. Both the blades rotate with equal speed. Product flow freely into the blades are mixed by overlapping blade action.
Discharge mechanism are two types – one is hydraulic tilting through pneumatic operated power pack system and second is mechanism tilting through induction & gearbox. Suppose if after kneading product is needed to be in specific form then side discharge screw system offered.