(846) 267-38-10 THE MAIN PRODUCTS AND SERVICES PHOTO GALLERY FEEDBACK CONTACTS Salt-Pepper Collection MONOCOLOR collection Steps and reliefs Technical and operational characteristics Electrical safety of Piastrella porcelain stoneware Porcelain stoneware loading rate Recommendations for the care of Piastrella porcelain stoneware the main/Products and services/Piastrella porcelain stoneware PORCELAIN STONE PRODUCTION TECHNOLOGY Ceramic granite is an excellent building material with high technical characteristics and a wide area of application (covering floors, walls, entrance groups and ventilation facades). The main raw materials for the production of this product are natural, environmentally friendly materials: feldspar, clay, kaolin and quartz sand, and special natural additives and dyes are used for partial coloring. MANUFACTURING PROCESS Stage I: acceptance and primary processing of raw materials The chain of the technological process begins with high-quality acceptance, sorting and storage of production raw materials. After determining the moisture content and chemical composition of the raw material, the components of the mass are weighed according to the charge composition. To tint the mass, various additives are used, which are introduced into the base. The weighed material is fed to the conveyor, through which it enters the slip preparation shop. Stage II: preparation of the slip For the production of ceramic granite by pressing from semi-dry powders, a slip technology for preparing the mass is adopted. The main task of this technological redistribution is the destruction of the natural structure of clays, its disaggregation, the removal of harmful impurities from natural raw materials, the correct dosage of charge components according to a given recipe and imparting sufficient density and uniformity to the mass by fine grinding of the components and their thorough mixing. All components are finely ground in wet ball mills. Uralite balls are used as grinding bodies. Further, the finished slip through a vibrating sieve with the help of a membrane pump is drained into slow speed agitators, where it must be kept for at least 12 hours for averaging. After holding, the slip is fed through pipes to the receiving mixers of the spray workshop. Stage III: spraying Slurry dehydration is carried out in this shop. The drying principle is as follows: a jet of ceramic suspension is supplied by a piston pump under pressure through a mesh filter and nozzles into the drying chamber. Due to the centrifugal force, the flow swirls and flies out through the nozzle in the form of a conical plume of slip droplets, which, falling into the heated working space, quickly release moisture and in the form of balls settle in the conical part of the tower spray dryer, from where they are poured out onto the belt conveyor through the sector gate and vibrating screen. The finished press powder is transported by conveyors and a bucket elevator to the silos for storage and aging. Stage IV: pressing and drying From the aging silos, the base powder and the colored mass in a given proportion are fed through a conveyor to the mixer, where they are thoroughly mixed. Further, along the conveyor and the elevator, the mass is fed into the steel press funnel through the control sieve. The press powder is poured from a steel hopper into the device for feeding the powder to the press. Semi-dry pressing takes place in three stages: primary pressure, holding (for air release), secondary pressure. Specific pressing pressure 350 kgf / cm2 Maximum pressing pressure - 2500 tons. Further, the pressed raw tile is pushed by the press carriage onto the collection near the press and is fed through conveyors to a horizontal dryer to completely remove moisture. Drying is carried out using air preheated with a gas burner. After the horizontal dryer, the tiles are fed to the dryer to unload the dryer. Stage V: Glazing The tiles are transported from the dryer to the oven by the connecting line between the dryer and the oven, at this time engobe is applied to the back side of the tiles and, if necessary, the "rustic" effect on the brushing machine. Stage VI: firing In the firing process, the product is completely sintered and it acquires all its physical and mechanical properties. The maximum firing temperature is 1250 ° C. VII stage: sorting and packing The finished tiles go to the sorting line, where, after automatic geometry control and visual inspection, they are automatically packed and stacked on a pallet. Website development and promotion - Rassvet Media, © 2011 Our address: Samara, Kirov ave., 26, of. 51 (846) 267-38-10, 267-38-00