Gravity-Free Mixer

Gravity-Free Mixers are divided into Horizontal Gravity-Free Mixers and Dual-Shaft Gravity-Free Mixers, and they are a type of 3D Mixer. Multifunctional Gravity-Free Mixers are equipped with additional components such as flying knives.A Gravity-Free Mixer is fitted with two parallel shafts that rotate in opposite directions, and these shafts are equipped with blades set at different preset angles.When the blades rotate, the linear speed at which they agitate the materials exceeds the critical speed, allowing the materials to reach the highest point of a parabola. This point is what we call the gravity-free point, which is why the Gravity-Free Mixer is also known as the Dual-Shaft Blade Mixer.

The Gravity-Free Mixer adopts a horizontal W-shaped cylinder, with two sets of parallel shafts rotating in opposite directions inside. The two shafts are equipped with blades at opposite angles (referred to as dual horizontal shafts). During operation, the shafts drive the materials to reach the highest point of a parabola, causing the materials to be in a state of instantaneous weightlessness, which is called the gravity-free point. At this point, materials with different particle sizes and densities can achieve uniform mixing, so it is also called the Gravity-Free Dual-Shaft Blade Mixer. The materials on both sides move in opposite directions, falling into each other's areas, and a convection current is formed in the central part. This ensures that the materials undergo three-dimensional throwing movement in the radial, circumferential, and axial directions, forming a composite cycle to quickly achieve uniform mixing. The designed mixing time is 1-3 minutes, and after mixing, the materials are discharged from the bottom.

Compared with other mixers, the Gravity-Free Mixer has the advantages of short mixing time, wide adaptability, and no damage to the mixed materials. It will not crush or grind the materials and has good adaptability for mixing coarse and fine materials.Without damaging the mixture, the Gravity-Free Mixer generates composite movements such as transverse staggered convection, blending, and diffusion inside the mixer body, enabling the materials to achieve a good mixing effect in a short time.

Working Principle:

The Gravity-Free Mixer has a set of main shafts rotating relative to each other, which drive the blades to rotate. The blades throw the materials to the spatial level along the axial and radial directions at a certain angle, and circulate and stir the materials. The materials in the spatial flow layer experience instantaneous weightlessness, where centrifugal force and gravity offset each other (in the weightless state, the difference in material density has no impact on the mixing uniformity). The materials mix into each other's areas, forming a fluidized weightless zone (i.e., gravity-free zone, also called instantaneous weightless zone) in the middle layer, and a rotating vortex is formed around the main shafts.A material translation flow layer is formed at the bottom of the Gravity-Free Mixer, and the materials move axially at the bottom.Driven by both radial and axial forces, the materials undergo three-dimensional composite movement, forming a composite cycle to quickly achieve the purpose of uniform mixing. This greatly improves the mixing efficiency and shortens the mixing time.An atomizing nozzle installed on the cylinder cover can meet the needs of solid-liquid mixing.

Applications:

• Applicable Industries: Chemical industry, biological industry, electronic battery industry, construction mortar industry, mining industry, agricultural industry, building materials industry, etc.
• Applicable Materials: Matching materials such as granular, fibrous, flaky, viscous, and puffed materials.
• Purpose of Use: Mixing materials with large differences in physical properties such as specific gravity, fineness, and fluidity. It is used for fast, large-capacity mixing of dry bulk solids or solid-liquid mixtures without segregation, and the mixing process is gentle.
• Applicable Materials: It is used for mixing materials such as chemical products, lithium battery positive and negative electrode powders, cosmetics, detergents, pharmaceuticals, monosodium glutamate, milk powder, spices, and additives. It is also suitable for mixing and drying operations under vacuum. In addition, it is applicable to products such as dry-mixed mortar, admixtures, cosmetics, detergents, pesticides, pharmaceuticals, food products, dyes, brewing materials, feed, building materials, ceramics, coatings, resins, fine chemicals, rubber, electronic materials, dry-mixed mortar, vitrified microsphere thermal insulation mortar, rubber powder polystyrene particle thermal insulation mortar, bonding mortar, plastering mortar, floor mortar, putty powder, concrete admixtures, glass silicon, and powder coatings.