The dry roll press granulator is a dry granulation equipment developed by our factory to absorb foreign advanced powder granulation technology. It is improved and improved on the basis of foreign technology. The structure is more reasonable and compact, the process is simple, and the operation is convenient. Good performance. The powder material can be directly formed into uniform particles required by the user without adding any binder, and the particle density is large, no further processing is required, the process flow is reduced, and the granulation cost is not reduced, and Reduce dust pollution and improve the working environment of workers.
Granulation principle
Various dry powder materials are added from the top of the equipment, and are degassed and spirally pressed into the opposite roller, and the material is plastically deformed under the action of the pressing force of the roller to be compressed into a sheet shape. The flaky material is subjected to a process of crushing, sizing, sieving, etc. to obtain a granulated product. By changing the groove surface groove method, a sheet-like, strip-shaped, flat spherical material can be obtained. The amount of squeezing force can be adjusted by the pressure of the hydraulic cylinder as needed for the granulation operation.
The powdery material is sent from the vibrating hopper to the main feeder through the quantitative feeder, degassed under the action of the main feeder stirring screw and pre-pressed into the arc grooves of the two left and right rolls, and the two rolls are A pair of intermeshing gears rotate in opposite directions at opposite speeds, and the powder is rolled into a dense web at the moment of passing through the rolls. After the rolls pass through the rolls, they fall off the rolls under the action of elastic recovery, and a small amount of unshed pieces are removed. Scrape off by a scraper. A strip-like groove uniformly distributed on the surface axes of the two rolls prevents slippage of the powder when it is bitten by the rolls. After the material falls into the crushing and granulating machine, it enters the vibrating screen and is sieved and classified to obtain the granular product that meets the requirements. The sieved shaft powder is returned to the vibrating hopper for recycling.
Dry roll pressing machine features
1. The material is forced to be compression-molded by mechanical pressure. Without adding any wetting agent, it does not damage the chemical properties of the material, and does not reduce the effective content of the product, and 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 automated, and the cycle operation is suitable for large-scale continuous production.
3. Direct granulation of dry powder does not require subsequent drying process, which is more conducive to the connection and transformation of existing production processes.
4. The particle strength is high, and the increase of the bulk specific gravity is more significant than other granulation methods. Especially suitable for increasing the proportion of product bulk, the particle strength can be adjusted, and the strength of the finished product can be controlled by adjusting the pressure of the roll.
5, the operation flexibility is large, the scope of application is wide, the size of the pressing force can be adjusted by the hydraulic pressure.
6. The whole process is completely closed, no additives are needed, the dry powder is directly granulated, the product purity is high, and the product has no pollution to the environment.
7. The whole set of equipment, all parts of the contact materials, are made of stainless steel or titanium alloy steel, and have good anti-corrosion performance.
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Zhuhai Mingke Electronics Technology Co., Ltd , https://www.zhmkdz-electronics.com