Carbonated suspension production system

Abstract

The invention proposes a suspension production system capable of continuously and efficiently immobilizing carbon dioxide in a suspension formed from calcium-containing powder and water, while also allowing for easy and stable control of the average suspension retention time. The carbonation suspension production system 1 includes: suspension storage tank 2 with the first suspension storage section lOa, lOb for contacting the suspension with carbon dioxide-containing gas; suspension supply device 3 to supply the suspension containing calcium powder and water; carbon dioxide-containing gas supply device 4 to supply carbon dioxide-containing gas at a pressure greater than atmospheric pressure to the gas phases 9a, 9b formed from the carbon dioxide-containing gas in the first suspension storage section; Suspension dispensing device 5 for dispensing the suspension; liquid surface measuring devices 6a, 6b, 6c for measuring the height of the liquid surface; and suspension control device 7 for controlling the average suspension retention time based on the height of the first liquid surface 8a, 8b and the second liquid surface 1a, 1lb, 1lc.