Grinding is the separation of a material in the solid phase into smaller parts (fractions). This process is usually carried out mechanically. Grinding increases the specific surface area of a given solid substance, which accelerates a number of technological processes involving it. Grinding is also carried out to obtain a loose product, often with a precisely defined grain size. In the specialist literature, it is conventionally assumed that grinding (crushing) occurs when the finished product has a diameter greater than 1 mm, and milling when it has a diameter below 1 mm.
From a technological point of view, crushing consists in reducing the size of raw materials (e.g. in the form of lumps and agglomerates) of solid and wet materials in order to obtain their appropriate granulation or obtain the appropriate surface of the material / raw material. BIKO-SERWIS crushers enable crushing materials into various fractions (large, medium and low fractions). The solid body of the devices and the compact design ensure efficient operation and maintenance of functioning in a continuous work system. The crusher bodies can be made of carbon and stainless steel. The special design of the knives ensures more effective crushing and maximum crushing torque with the longest possible use of the devices. Our devices are designed to work in difficult conditions. They can work at both low and high temperatures, crush and grind materials and raw materials of very different hardness. BIKO SERWIS crushers have a sealed structure even with a larger number of shafts, which allows the processing of the widest range of bulk materials. The specialized design of crushers allows for the production of homogeneous mixtures from components that do not mix under normal conditions. Our solutions are based on the results of simulations of the actual behavior of bulk and lump materials using the discrete element method (DEM).
Whenever it is necessary to dissolve and break up lumpy agglomerates and lumps of raw materials in industry, crushers and shredders are sought. The starting products can be broken down from dry, friable and slightly moist to the desired final grain size by cutting and grinding.
Crushers are used at the outlets of bulk material tanks, e.g. cement, ash, flour and lime silos. Their task is to break up the material that has become lumpy during storage before its further processing or transport. There are two basic versions of crushers available, adapted to the capacity and size of the outlets.
The operation of a beater shredder is very simple. The material is shredded in the main chamber of the mill, to which it is fed by means of a feeder. The shredding is carried out by hitting the raw material with the beaters used in the mill and the raw material itself with the walls of the mill chamber. The size and regularity of the obtained fraction depends on the diameter of the holes in the sieve used in the mill. It is important that the materials entering the chamber are not contaminated. Otherwise, they can cause serious damage to the device.
Hammer mills can crush many raw materials. They improve the pellet and briquette production process, and thanks to their high efficiency, they contribute to reducing production costs. The replacement of beaters and sieves used in mills is very efficient, thanks to which beater mills can work almost without technological breaks. An undoubted advantage of mills is also the low level of vibration of the device, which ensures comfort during their operation. Beater mills manufactured by BIKO-SERWIS ensure optimal efficiency at record low operating costs.
Pressure mills ensure fast and effective grinding with minimal heat load and much higher throughput. The devices are ideal for ultra-fine grinding of temperature sensitive materials, for smooth pre-crushing and grinding of hard, brittle, soft and greasy materials or samples with residual moisture.
Used to increase the specific surface area of sorbents and grind flours.
