Dry rolling granulator

Characteristics of dry rolling granulatorprocess flow

1. Loading process: The material is intermittently placed into the vertical feeding bin.

2. Vertical feeding process: The dry powder enters the hopper through the feeding port, and under the action of the hollow vertical hinge, the powder is pushed into the horizontal screw feeder. During this process, some gas is discharged from the bottom of the hinge upwards through the hollow part of the hinge, so that the powder can be evenly fed into the horizontal screw feeding port. The feeding amount can be adjusted by frequency conversion to ensure that the screw is fully filled, uniform, not empty or blocked, and the density of the powder is preliminarily improved.

3. Horizontal feeding process: The degassed material enters the horizontal feeder, and through the rotation of the screw, the material is degassed again during the forward movement process, and the high-density material is forcibly fed into the tablet pressing system to complete the pre pressing work.

4. Tablet pressing process: The material after degassing has already reached the pre pressing state before rolling. After pre pressing, the friction between the material entering the bite zone and the surface of the pressure roller is increased, reducing the friction of the material and increasing the bite angle. The material after degassing makes the equipment run more smoothly during the rolling forming process, with uniform strength and stable quality. After forming, the tablet is crushed and granulated in the next process, and the pulverization rate is significantly controlled, ensuring the maximum final quality of the product. Water cooled pressure roller, with external joints, ensures that there is no possibility of water leakage and pollution in the working area, and is easy to clean.

5. Crushing process: The formed tablet is cut into small pieces that are easy to round by a knife toothed crusher.

6. Granulation process: In the granulation system, the crushed material enters the granulator. Under the pressure of the granulator blade, small particles can easily pass through the orifice plate of the granulator without damage, while large particles continue to be crushed into small particles in the granulator, completing the required number of particles for rounding. The whole pellet cutter rotates continuously with high efficiency, and the rotation speed is adjustable by frequency conversion. When the rotation speed of the sieve plate with the same aperture is high, the relative particles are smaller, thus completing the entire production process from dry powder to particles.

Characteristics of dry rolling granulatorProduct Features

1. The GZL260-200L dry granulation machine and the drug contact part (working chamber) are sealed independently, using a combination of two-stage or above seals and gas seals to ensure cleanliness requirements and safety;

2. Adopting imported machine technology, the tablet pressing system adopts a two roll four-wheel drive transmission and a biased feeding structure, with a more reasonable design and more stable tablet forming;

3. Add an isolation layer between the transmission area and the working area of the tablet pressing part for more reliable sealing; Other seals that come into contact with materials are sealed with air between two layers.

4. The pressure roller transmission system introduces foreign technology, with good sealing performance, multi-layer sealing, and gas filling sealing; Transmission structure design makes equipment maintenance easy to disassemble;

5. The horizontal feeding device can be moved separately for easy cleaning;

6. Mobile connection of the whole granule device, convenient for maintenance and cleaning;

7. The shaft between the horizontal feeding work area seal and the bearing seal is exposed, ensuring safe and reliable sealing;

8. Adopting a two-stage feeding and horizontal structure, the performance is superior to the commonly used single-stage feeding and vertical structure in China, which enables sufficient degassing of the powder, uniform and dense feeding, and further improves the density and yield of the product.

9. The GZL260-200L dry granulation machine adopts PLC system online control, LCD screen human-machine interface operation, and automatic feeding amount setting; Vertical feeding, horizontal feeding, tablet pressing, and variable frequency speed regulation settings; System pressure setting; Online control, parameter display, and query of the feeding to screening system.

10. The design of the floating roller adopts a structure with small contact surface, low friction, flexible floating, and no jerkiness. The follow-up of the pressure roller is improved, the performance is more stable, and the product has a good densification effect.

Dry rolling granulatorProduct performance parameters