Specific operational steps for producing calcium carbide

The following are the specific steps for making calcium carbide:

1. Raw material preparation: Prepare quicklime (calcium oxide) and coke. Lime needs to be crushed and sieved to ensure its particle size meets the requirements. Coke also needs to be crushed and screened to ensure uniform particle size.

2. Ingredients: Mix quicklime and coke in a certain proportion. The proportion of ingredients will affect the quality and output of calcium carbide, and needs to be adjusted according to the actual situation.

3. Feeding: Add the prepared raw materials into the electric furnace through the inlet or pipeline at the upper end of the furnace.

4. Heating reaction: In an electric furnace, the high temperature of the arc generated by the electrodes causes a chemical reaction in the raw materials. The reaction temperature is usually around 2000 ℃, and the reaction equation is: CaO+3C → CaC ₂+CO.

5. Cooling: After the reaction is complete, remove the generated calcium carbide from the furnace bottom and cool it down. Natural cooling or forced cooling through water spraying can be used.

6. Crushing and packaging: After cooling, the calcium carbide solidifies into blocks and needs to be crushed to meet the required particle size specifications. Finally, package the crushed calcium carbide for storage and transportation.