Granulation is used to obtain a convenient, user-acceptable final form of the product, often raw materials or semi-finished products are granulated to facilitate or even enable their use in appropriate technologies. An example is the granulation of raw materials or municipal or mining waste before their processing, as well as solid biofuels. Granulation, or controlled agglomeration of powders with a high degree of dispersion, is a technique carried out in various ways, but its purpose is either to prepare the powder for further technological operations or to give it the shape and properties characteristic of the final product (catalysts, pharmaceutical industry products).
Process and apparatus granulation can be carried out: pressureless or pressureless. Pressureless granulation can be carried out in a fluidized bed or in a freely flowing layer of granulated material (dynamic granulators, drum, plate, vibrating granulators). If powder raw materials are granulated, regardless of whether it is pressure or pressureless granulation, a binding liquid is used in the agglomeration process.
Granulation of products is used in many manufacturing technologies. Due to the volume of production, the chemical industry dominates, but granulation is also often used in food processing, as well as in many technologies related to environmental engineering. In the chemical industry, formed granules of fertilizers make it possible to obtain special properties regarding the speed of their dissolution. Classic methods of non-pressure granulation are also used to produce multi-component granules in such a form that the individual components are applied in the form of surface layers, which determines their subsequent release as a result of dissolution.
Granulation, also known as agglomeration, pelletization, lumping, is the process of combining small particles, such as dusts, powders into larger aggregates (granules), with a specific mechanical strength and a granule size of more than 1 mm. The agglomeration or granulation process itself is carried out by means of wet granulation with the addition of liquid or alternatively by means of hot granulation.
Microgranulation is a process of producing granulates with a granule size of less than 1 mm. This type of granulation was until recently the domain of spray dryers and fluidized bed granulators.
The production of microgranules can be carried out in dynamic granulators, where high material displacement speeds within the rotor (turbine) also enable the production of microgranules. The use of special rotors supports this process and in industrial conditions, obtaining granulates in the size range of 0.1 to 0.7 mm is achievable. These granule grain sizes are, for example, desirable in the production of proppants and granulates for pressure molding of ceramic products, etc.
The pressureless granulation process can be carried out in plate granulators, which are made in various sizes and capacities. They can differ in additional equipment, such as: a material heating system, control and measurement systems for temperature and humidity of the granulated material, and various types of liquid and bulk material dosing systems.
The disc granulators manufactured by BIKO-SERWIS have been used in many non-pressure granulation processes, the main areas of application include: building materials, ceramics, energy, municipal waste, refractory materials, artificial fertilizers, glass industry, foundry, environmental protection, powder metallurgy. We have many years of experience in the field of industrial mixing and granulation technology; we are experts in bulk materials. We make the devices from both carbon and stainless steel. The disc granulators can be equipped with a freely programmable controller, which allows for the implementation of various functions: such as setting technological parameters, visualization of the mixing process and data archiving.
Pipe granulators are used for pelletizing, micropelletizing and homogenizing many types of bulk materials using high-speed pins arranged in the form of a screw. The device operates continuously, achieving much higher efficiency than batch granulators. Compared to disk granulation, lower product moisture is required (lower demand for binder), higher density and mechanical strength of granules are obtained and a higher share of the desired fraction, up to 98%. The diameter of granules is adjustable and is 2-12 mm. The device is also used for mixing materials that are difficult to homogenize.
BKSG granulators are batch devices for obtaining round agglomerates with a diameter of 1-10 mm. Thanks to the use of the high-speed shear phenomenon, the obtained particles have high density and mechanical strength and the demand for liquid additives is reduced.
Thanks to the use of high-speed shearing, the obtained particles have high density and mechanical strength and the need for liquid additives is reduced.
