Jaw Crusher 1.docx

Jaw Crusher 1 Limestone Loss (LJ1) 147.29 kg/hr Limestone (FL) 294,578.67 kg/hr Dp= 90 mm

Crushed Limestone (J1) 294,431.38 kg/hr Dp= 10 mm

Power Requirement Limestone size ranges from 10 to 200 mm but the average size of limestone feed in a jaw crusher is 90 mm. In the primary crushing stage, the feed is reduced to less than 20 mm for the next crushing stage which is milling (Alsop et.al, 2007). Bond’s crushing law was used to calculate the power requirement of the jaw crusher. 𝑃 1 1 = √100 × 10−3 𝑊𝑖 [ − ] 𝑚 √𝐷𝑝𝑏 √𝐷𝑝𝑎 𝑚 = 294,578.67

𝑘𝑔 1 𝑡𝑜𝑛 𝑡𝑜𝑛𝑠 × = 294.57867 ℎ𝑟 1000 𝑘𝑔 ℎ𝑟

𝑃 = √100 × 10−3 (12.74) [

1 √10

−

1 √90

𝑃 = 250.20 𝑘𝑊

] × 294.57867

Blending Silo Sand (FS) 6,924.33 kg/hr Clay (FC) 45,008.17 kg/hr

Raw Mix (RM) 346,216.66 kg/hr

Fine Limestone (H1) 294,284.16 kg/hr

Power Requirement According to Alsop et. Al (2007), the power consumption of a blending silos to homogenize the raw mill is 0.5 kWh/ton. 0.5

𝑘𝑊ℎ 1 𝑡𝑜𝑛 346,216.66 𝑘𝑔 × × = 173.11 𝑘𝑊 𝑡𝑜𝑛 1000 𝑘𝑔 ℎ𝑟 𝑃 = 173.11 𝑘𝑊

Blending Silo

PET Fines (H2) 1,157.41 kg/hr

Cement (B2) 230,324.07 kg/hr

Cement (CM) 231,481.48 kg/hr

Power Requirement According to Alsop et. Al (2007), the power consumption of a blending silos to homogenize the raw mill is 0.5 kWh/ton. 0.5

𝑘𝑊ℎ 1 𝑡𝑜𝑛 231,481.48 𝑘𝑔 × × = 115.74 𝑘𝑊 𝑡𝑜𝑛 1000 𝑘𝑔 ℎ𝑟

𝑃 = 115.74 𝑘𝑊

Alsop, P. A., Chen, H. & Tseng, H. (2007). The cement plant operations handbook. Surrey, UK: International Cement Review Limestone – Its processing and application in iron and steel industry. Retrieved March 2, 2019 from http://ispatguru.com/limestone-its-processing-and-application-in-iron-and-steel-industry/