process of coal processing in cement plant

Coal Processing in Cement Plants: Crushing & Grinding Systems

In cement production, coal serves as a key fuel for kilns. The processing involves crushing, drying, and grinding to achieve optimal combustion efficiency. A typical system includes:

1. Primary Crusher: Jaw crushers (e.g., Model JC3630 with 300TPH capacity) reduce raw coal to ≤150mm.
2. Secondary Crusher: Hammer crushers (Model PCΦ800×600, output size ≤25mm) further pulverize coal.
3. Drying & Grinding: Vertical roller mills (LM1900, moisture reduction from 15% to 1%) prepare fine coal powder (80μm residue ≤12%).

Key Equipment Parameters

Equipment	Model	Capacity	Power
Jaw Crusher	JC3630	300TPH	160kW
Hammer Crusher	PCΦ800×600	50TPH	132kW
VRM Mill	LM1900	25TPH	450kW

Screening & Conveying Solutions

Screens (e.g., circular vibrating screen Model 3YK2160) separate oversized particles, while belt conveyors (B1000×20m) transport crushed coal to storage silos. Dust collectors (PPC96-6) maintain emission levels below 30mg/Nm³.

Cement Plant FAQs on Coal Processing:

A:

• *Q: How to reduce moisture in high-humidity coal?*
  A: Pre-dryers or hot gas injection systems in VRMs.
• *Q: Optimal fineness for kiln combustion?*
  A: 80-90% passing 200 mesh (74μm).
• *Q: Dust control measures?*
  A: Bag filters + sealed conveyor systems.
• *Q: