In which of the processes of manufacturing of cement is the limestone brought from the quarries first crushed into smaller fragments?

Question

Question

This question was previously asked in

SSC JE Civil 05 Jun 2024 Shift 1 Official Paper - 1

Answer 1

Explanation:

Difference between dry and wet manufacturing process of cement is as follows:

Dry process	Wet process
1. Mixing of raw material in dry state in blenders.	1. Mixing of Raw materials in wash mill with 35 to 50% water.
2. The dry materials exiting the mill are called “kiln feed”.	2. Materials exiting the mill are called “slurry” and have flowability characteristics.
3. Fuel consumption is low	3. Fuel consumption is high
4. Cost of production is less	4. Cost of production is high
5. Capital cost is high due to blenders	5. Capital cost (Cost of establishment) is comparatively less
6. Size of the kiln needed for the manufacturing of cement is smaller.	6. Size of the kiln needed for the manufacturing of cement is bigger.
7. Difficult to control the mixing of Raw materials, so it is difficult to obtain a better homogeneous material.	7. Raw material can be mixed easily, so a better homogeneous material can be obtained
8. The cost of excavating and grinding raw materials is high.	8. The cost of excavating and grinding raw materials is low.