From a long experience of design and construction of double roll presses, SAHUT-CONREUR has developed a roller press specifically adapted for grinding. This machine can crush materials of variable size range. The material fed between the rollers is ground and comes out as friable flakes.
Compared with traditional techniques, the use of this process means:
- Energy savings up to 30% for some materials
- Throughput increases of crushed end-product from 30 to 100% when the process is fitted into an existing grinding circuit
- A cost decrease of production and maintenance of these installations
The grinding with Roller Press can be installed either in a new plant or an existing one by replacing old technologies.
Fields of application:
- Cement raw materials (limestone, clay)
- SlagTitanium oxide
- Synthetic fibers
Today, SAHUT-CONREUR could offer 7 different types of granulator grinders, thanks to which, you can successfully select a grinder for each specific task.
It consists of two rotors fitted with toothed discs rotating at the same speed and in reverse direction: the flakes produced by the compactor run through the toothed discs and are reduced in size. This equipment is usually placed between the compactor and the granulator/crusher in order to reduce the flake size and so facilitate granulations.
It consists of a rotor fitted with mobile hammers and a screen installed under the rotor; the rotor speed and screen hole size are determined by the product to process and the end size range required. The single-deck grid granulator will be installed as primary or secondary granulator.
The granulator is equipped with a rotor fitted with several arms; the product is crushed when running through the screen installed under the rotor. This equipment is particularly adapted for producing a fine particle size range in small throughput plants.
It consists of two rotors, the working surface of which is machined to obtain either vertical knives or horizontal knives. The product running through the rotors is crushed by the knives. The size range of the crushed material (between 2 and 20 mm) is conditioned by the gap between rotors and the distance between knives.
Smooth roll crusher
It is well adapted for finer particle size range with an average diameter between 0.3 and 2 mm. With this crusher, the size range can be perfectly targeted while reaching crushing yields vastly superior to the usual yields for such a fine particle size range.
Single-deck grid granulator
It is equipped with a rotor fitted with several blades. A perforated grid is placed under the rotor. The rotor rotates at low speeds and pushes material through perforation. Thanks to this grinding technique, the granules have a rounder shape. Besides, the crushing/ granulation yield is higher than the one obtained with the hammer-mill. The single-deck grid granulator will be installed as primary or secondary granulator.
Double-deck grid granulator
It includes a primary granulator and two secondary granulators. Taking the throughput of the grid of the secondary granulator into account, the flow of product from the primary granulator is distributed among both secondary granulators mounted in parallel. The perforation of the grid of the secondary granulators can correspond to the upper size requested for the marketable granules: in that case, the upper cloth can be removed and the circulating load in the handling equipment reduced.
The process of increasing the particle size of a material in a dry process, in which dust and powders take shape and bulk structure. Product compaction is achieved by mechanical compression through a two-roll roller press.
Dry process for converting powder into granules of various shapes and sizes.