When developing a technological scheme of a concrete plant (or installation), it is necessary to take into account:
The feasibility of using the gravity of the materials so that in the process of moving them from top to bottom, the necessary operations associated with the preparation of concrete (bunker storage, dosage, mixing, issuing concrete) are performed along the way.
The supply of materials to the plant can be carried out vertically using various lifting devices (nori, mine lifts, etc.) or inclined with a conveyor, Femsberg. When the concrete plant is located on the slope, the rise of materials for supply to the plant is made by horizontal supply, as indicated on the diagram.
The location of concrete mixers determines the placement of all technological equipment in all floors of the plant and the supply of transportation funds under the load (car, trolley, etc.).
The location of concrete mixers in the plan is usually single -row and less often two -row.
The use of three or four concrete mixers causes an increase in the construction part of the plant, as well as complications in the dosage and bunker devices.
The device of dispenser equipment of bunker tanks should ensure the design operation of concrete mixers, a quick transition to concrete of another composition (brand), automation of control, control over the dosage and mixing of concrete. For dosage cement, weight dispenser is used.
For the dosage of sand and gravel to concrete mixers with a capacity of up to 425 liters, there are volumetric dispensers consisting of telescopic measuring vessels with flat graduation gaps that open with a lever. The dosage change is carried out by lifting or lowering on the bolts of the lower mobile part of the vessel. On the wall of the vessel is indicated by the graduation of its volume. In dosages for gravel, the exhaust sector shutters are equipped with articulated fists, automatically preventing stones when closing the shutter. There are no such cams in sand dosages.
