The principle and characteristics of the roller dry granulation machine
Date: 2022-04-21Read: 4
Roll dry granulation machineUsing two rollers in relative motion for extrusion molding, with a certain gap (adjustable) between the two rollers, they rotate relative to each other at the same speed. One set of roller shaft seats is fixed, while the other set of roller shaft seats slides to help the hydraulic cylinder apply pressure to each other. The surface of the rolling mill is regularly arranged with many arc grooves of the same shape and size. The two rolling mills are in a horizontal parallel state, and the powder and granular materials are continuously and uniformly pressed between the rolling mills by their own weight and forced feeders, and formed under the high pressure of the two rolling mills. Next, it enters the shredding device for particle breakage, and then the finished particles are screened out by the screening machine. The screened defective products can be put back into the feeding port for secondary granulation. The particle shape depends on the arc groove shape on the surface of the roller (such as elliptical, sheet-like, or strip-shaped).
Equipment characteristics of roller dry granulation machine:
1. Dry powder is directly compressed and formed under high pressure without adding water, adhesives, or wetting agents. It does not require subsequent drying, does not damage the chemical properties of the material, and does not reduce the effective content of the product. The purity of the product is guaranteed.
2. The process flow is short, the energy consumption is low, the output is large, the production process is fully automated, and one person can operate it, which is suitable for large-scale continuous production.
3. The hardness of the particles can be adjusted, and the increase in bulk density is more significant than other granulation methods. Especially suitable for increasing the density of product stacking.
4. Wide adaptability, the magnitude of extrusion force can be adjusted through hydraulic pressure.
5. The entire process is completely enclosed, with no dust flying and causing environmental pollution, and can be used in a dust-free workshop.
6. The entire equipment is made of stainless steel or titanium alloy steel, with good anti-corrosion performance, will not cause material pollution, and meets the hygiene standards of various industries.