RDPreheating water jackets

An apparatus for producing slaked lime slurry comprising:

• a programmable control system;
• a slaking vessel having at least one support location that is provided with at least one load cell, wherein the load cell provides a load cell signal indicative of a total weight of the slaking vessel and its contents, said load cell communicating with said programmable control system such that said load cell signal can be received by said programmable control system;
• slaking vessel temperature sensing means for sensing the temperature of the contents of said slaking vessel, wherein said slaking vessel temperature sensing means provides a slaking vessel temperature signal indicative of the temperature of the contents of said slaking vessel, said slaking vessel temperature sensing means communicating with said programmable control system such that said slaking vessel temperature signal can be received by said programmable control system;
• means for charging water into the slaking vessel, said programmable control system communicating with said means for charging water into the slaking vessel, said programmable control system stopping the charging of water into said slaking vessel when said load cell signal indicates that a predetermined weight of water has been charged into said slaking vessel, wherein the water charged into said slaking vessel has a temperature;
• means for mixing the content of said slaking vessel;
• water temperature control means for controlling the temperature of the water charged into said slaking vessel, said water temperature control means communicating with said programmable control system, said programmable control system controlling said water temperature control means such that the temperature of the water charged into said slaking vessel is within a predetermined water temperature range;
• means for charging lime feed stock into the slaking vessel, said programmable control system communicating with said means for charging lime feed stock into the slaking vessel, said programmable control system stopping the charging of lime feed stock into said slaking vessel when said load cell signal indicates that a predetermined weight of lime feed stock has been charged into said slaking vessel, thereby allowing a slaking reaction to take place;
• and
• means for discharging the contents of said slaking vessel;
• said programmable control system communicating with said means for discharging the contents of said slaking vessel, said programmable control system monitoring the temperature of the contents of said slaking vessel using said slaking vessel temperature signal, said programmable control system operating said means for discharging the contents of said slaking vessel to discharge the contents of said slaking vessel when the temperature of the contents of said slaking vessel remains within a predetermined temperature range for a predetermined period of time.