Apparatus and method for cooling of fresh concrete
AssigneeL'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
InventorMarcel BROUNS
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Abstract
An apparatus for cooling fresh concrete using a frame through which the fresh concrete can flow and at least one spoke arranged in the frame. Wherein the at least one spoke has at least one nozzle for discharging a coolant into the fresh concrete. The coolant may be liquid nitrogen or liquid carbon dioxide. The coolant may be introduced into fresh concrete in such a way that the coolant is enclosed by the fresh concrete. In this way, the fresh concrete can be cooled efficiently without large amounts of the coolant being released into the environment and without the fresh concrete becoming so cold in places that damage to, for example, the transport vehicle can occur. The apparatus may be used, in particular, when filling the transport vehicle.
Claims16
1-14. (canceled)
An arrangement for filling a mixer with cooled fresh concrete, comprising:
- a) a transfer element via which the fresh concrete can be introduced into the mixer, and
- b) an apparatus for cooling fresh concrete, comprising a frame surrounding an open section through which the fresh concrete can flow and an injection structure attached to the frame and extending inwardly from the frame, wherein the injection structure has at least one nozzle for discharge of a coolant into the fresh concrete flowing through the open section, each nozzle being in fluid connection with a coolant inlet of the apparatus,
- the apparatus being mounted on or in the transfer element so that fresh concrete introduced into the mixer via the transfer element flows through the open section of the apparatus.
Dependencies are inferred from the claim text.