| 摘要 |
The present invention relates to a method and an apparatus for diluting a liquid colorant. The method and apparatus are especially suitable for use in conjunction with the manufacture of colored concrete products. The method of spraying includes, providing a liquid colorant, diluting the liquid colorant with a diluting liquid, and spraying the diluted liquid colorant onto uncured concrete and/or on mold surfaces prior to filling with uncured concrete. The apparatus for spraying a diluted liquid colorant includes a flow path for a diluting liquid, a liquid colorant pump connected to the flow path, a mixer for mixing the diluting liquid with the liquid colorant, and a sprayer connected to the flow path. |
