Technology

TECHNOLOGICAL LINE

The technological line represents a complex of integrated equipments that function according to a predefined flux of production. In order to maintain a special flexibility which should not affect productivity, automatism of the entire production line requires being digitally programmable.

Furthermore, even the technological line has to stand technological processes, both in the completely automatized system (in exploitation) and manually (technological initial adjustment and/or operation).

The technological line for the manufacturing of vibro-compressed paving stones and kerbstones is divided in the following subsystems:

Indoor aggregate yards;
Front end loaders;
Storage bunkers for aggregate, sand;
Bulk cement plants;
Coloring agent tanks, water reservoirs, additives;
Conveyance systems comprised of belt carriers, screwconveyors, pipes, etc.;
Automatic proportioning systems for color agents, water, additives, cement;
Mixture stations;
Blockmachine;
Lifting system-Crane type;
Drying chamber;
Cubing Systems with Pallet Feeder;
Pallet recirculation system;
Plastics foil wrapping system;
Forklift operators;
Finished products storage yard;
Compressed air equipment.

TECHNOLOGICAL FLUX

Due to the maximum flexibility concept applied in the achievement of the technological line, the technological flux, though the same for upper rated vibro-pressed products, may be easily programmed/planned within the large limits of the technological parameters for the sustaining of the diversified strategies of production management (quality, productivity, money savings, etc.).

Generally speaking, the technological flux contains the following operations and phases:

Reception, checking and storage, based on diverse types of aggregate and sand.
Reception, loading and storage of cement supplies in special storage bunkers.
Feeding of storage bunkers with sand and different sorts of aggregate by the agency of front end loaders.
Feeding of the coloring agent tanks, additives and water reservoirs.
Calibration of aggregate minerals. This operation is performed right at the initial adjustment of the production cycle and consists of different measurements which qualify by the instrumentality of weigh hopper the exact quantity of aggregate amassed by the belt carriers in a certain time unit.
Testing and calibration of the cement weigh hopper.
Usage of the data obtained in the automatic proportioning systems for a perfect match of recipes.

PREPARATION OF THE RAW STOCK

Feeding of mixture stations with sand and aggregate by the means of a system of belt carriers. The quantity is determined by the speed of the feeding belt carriers as well as by the size of the outlets.
Feeding of mixture stations with cement. This is carried from the cement bunker by the agency of screw conveyer and an automatic system of filling valves into the weigh hopper, weighed and later transferred into the mixer.
Feeding of the mixture stations with water, color agents and additives are achieved according to the recipes of production. Dosage of the quantities is carefully performed by the instrumentality of most up-to date tools and equipments.
Homogenization of the raw stock, evacuated from the mixer and their transfer by the belt carriers into the feeding bunkers of the blockmachine.

OBTAINING OF THE FINISHED PRODUCT IN THE BLOCKMACHINE, DRYING

Feeding of the cart with raw stock by opening the bunker outlet.
Feeding of the mould by horizontal movement of the cart. The mould, which is made of several empty metallic shapes of the final product, is placed on a pressing wooden or plastic pallet.
Vibration of the mould followed by a primary compression.
The second feeding of the mould with the mixture from the second bunker of the blockmachine in order to obtain a wearing layer, vibration and compression.
Withdrawing of both the hobs and the mould, evacuation of the finished product in a raw state. The shape and dimensions of the finished product depend on the shape and sizes of the moulds and hobs as well as on certain functional parameters of the blockmachine.
Checking of the size, aspect and density.
Conveyance of the pallets carrying raw finished products into the drying chamber, by the agency of belt carriers.
Lifting of the pallets and piling-up for drying using a special device of lifting and conveyance.

PALLET OPERATION - STORAGE FINISHED PRODUCT

Lifting of the pallets of dry finished products, seating them on a belt carrier and their conveyance to the cubing area.
Visual checking of the products and replacement of those which do not fit to the norms.
Collecting and lifting from pallets of the products, piling-up of the products on euro-pallets. This operation is performed by a special device, completely automatized, called pallet-maker. The remaining empty pallets are included again in the technological process of production after having been cleaned-up and introduced again into the pallet storage room of the blockmachine by the agency of a system of carrier belts and devices that can change their direction. The euro-pallets used for wrapping the finished products are loaded by forklift operators into an automatic feeder. From here by the instrumentality of a carrier belt they get back into the cubing area.
Plastics wrapping and labeling by the agency of an automatic wrapping device. The conveyance of the euro-pallets with piled-up paving stones to the wrapping device and back, are made possible by the means of the carrier belt of the finished product.
Lifting of the wrapped euro-pallets and storage according to each one’s type in special disposed areas by the agency of forklift operators.







Technology TECHNOLOGICAL LINE The technological line represents a complex of integrated equipments that function according to a predefined flux of production. In order to maintain a special flexibility which should not affect productivity, automatism of the entire production line requires being digitally programmable. Furthermore, even the technological line has to stand technological processes, both in the completely automatized system (in exploitation) and manually (technological initial adjustment and/or operation). The technological line for the manufacturing of vibro-compressed paving stones and kerbstones is divided in the following subsystems: Indoor aggregate yards; Front end loaders; Storage bunkers for aggregate, sand; Bulk cement plants; Coloring agent tanks, water reservoirs, additives; Conveyance systems comprised of belt carriers, screwconveyors, pipes, etc.; Automatic proportioning systems for color agents, water, additives, cement; Mixture stations; Blockmachine; Lifting system-Crane type; Drying chamber; Cubing Systems with Pallet Feeder; Pallet recirculation system; Plastics foil wrapping system; Forklift operators; Finished products storage yard; Compressed air equipment. TECHNOLOGICAL FLUX Due to the maximum flexibility concept applied in the achievement of the technological line, the technological flux, though the same for upper rated vibro-pressed products, may be easily programmed/planned within the large limits of the technological parameters for the sustaining of the diversified strategies of production management (quality, productivity, money savings, etc.). Generally speaking, the technological flux contains the following operations and phases: Reception, checking and storage, based on diverse types of aggregate and sand. Reception, loading and storage of cement supplies in special storage bunkers. Feeding of storage bunkers with sand and different sorts of aggregate by the agency of front end loaders. Feeding of the coloring agent tanks, additives and water reservoirs. Calibration of aggregate minerals. This operation is performed right at the initial adjustment of the production cycle and consists of different measurements which qualify by the instrumentality of weigh hopper the exact quantity of aggregate amassed by the belt carriers in a certain time unit. Testing and calibration of the cement weigh hopper. Usage of the data obtained in the automatic proportioning systems for a perfect match of recipes. PREPARATION OF THE RAW STOCK Feeding of mixture stations with sand and aggregate by the means of a system of belt carriers. The quantity is determined by the speed of the feeding belt carriers as well as by the size of the outlets. Feeding of mixture stations with cement. This is carried from the cement bunker by the agency of screw conveyer and an automatic system of filling valves into the weigh hopper, weighed and later transferred into the mixer. Feeding of the mixture stations with water, color agents and additives are achieved according to the recipes of production. Dosage of the quantities is carefully performed by the instrumentality of most up-to date tools and equipments. Homogenization of the raw stock, evacuated from the mixer and their transfer by the belt carriers into the feeding bunkers of the blockmachine. OBTAINING OF THE FINISHED PRODUCT IN THE BLOCKMACHINE, DRYING Feeding of the cart with raw stock by opening the bunker outlet. Feeding of the mould by horizontal movement of the cart. The mould, which is made of several empty metallic shapes of the final product, is placed on a pressing wooden or plastic pallet. Vibration of the mould followed by a primary compression. The second feeding of the mould with the mixture from the second bunker of the blockmachine in order to obtain a wearing layer, vibration and compression. Withdrawing of both the hobs and the mould, evacuation of the finished product in a raw state. The shape and dimensions of the finished product depend on the shape and sizes of the moulds and hobs as well as on certain functional parameters of the blockmachine. Checking of the size, aspect and density. Conveyance of the pallets carrying raw finished products into the drying chamber, by the agency of belt carriers. Lifting of the pallets and piling-up for drying using a special device of lifting and conveyance. PALLET OPERATION - STORAGE FINISHED PRODUCT Lifting of the pallets of dry finished products, seating them on a belt carrier and their conveyance to the cubing area. Visual checking of the products and replacement of those which do not fit to the norms. Collecting and lifting from pallets of the products, piling-up of the products on euro-pallets. This operation is performed by a special device, completely automatized, called pallet-maker. The remaining empty pallets are included again in the technological process of production after having been cleaned-up and introduced again into the pallet storage room of the blockmachine by the agency of a system of carrier belts and devices that can change their direction. The euro-pallets used for wrapping the finished products are loaded by forklift operators into an automatic feeder. From here by the instrumentality of a carrier belt they get back into the cubing area. Plastics wrapping and labeling by the agency of an automatic wrapping device. The conveyance of the euro-pallets with piled-up paving stones to the wrapping device and back, are made possible by the means of the carrier belt of the finished product. Lifting of the wrapped euro-pallets and storage according to each one’s type in special disposed areas by the agency of forklift operators.