Lime slakers should be equipped with a _______ that will stop the lime feed before _______.

Lime slakers should be equipped with a _______ that will stop the lime feed before _______.

• A. Temperature override device, freezing occurs
• B. Water flow gauge, the lime is over-diluted
• C. Temperature override device, dangerous temperatures are reached
• D. Scale, it overfeeds the lime

Answer: (C)

Lime slaking is highly exothermic, so heat buildup as lime is fed into water can push temperatures into unsafe ranges. Having a temperature override device that automatically stops the lime feed before dangerous temperatures are reached creates a critical safety interlock—it cuts off the feed when the slurry gets too hot, preventing overheating and potential equipment damage or hazards. The other options don’t address this key safety risk. Stopping feed to prevent freezing isn’t a common concern in lime slaking, since temperatures near freezing are unlikely in normal operation. A water flow gauge affects dilution but doesn’t control heat generation, so it won’t prevent dangerous temperatures. A scale sensor would manage overfeeding issues related to buildup, not the immediate safety risk from heat.

Lime slaking is highly exothermic, so heat buildup as lime is fed into water can push temperatures into unsafe ranges. Having a temperature override device that automatically stops the lime feed before dangerous temperatures are reached creates a critical safety interlock—it cuts off the feed when the slurry gets too hot, preventing overheating and potential equipment damage or hazards.

The other options don’t address this key safety risk. Stopping feed to prevent freezing isn’t a common concern in lime slaking, since temperatures near freezing are unlikely in normal operation. A water flow gauge affects dilution but doesn’t control heat generation, so it won’t prevent dangerous temperatures. A scale sensor would manage overfeeding issues related to buildup, not the immediate safety risk from heat.