What equipment is needed to build a small cement plant with a production capacity of 30 tons/hour?

Given the current demand in the construction industry, building a small cement plant is an investment project with market potential. This article will detail the equipment configuration required to build a small cement plant with a production capacity of 30 tons/hour, helping investors fully understand the relevant equipment and its functions.

1. Raw Material Crushing Equipment

The first step in cement production is to crush raw materials (such as limestone and clay) into small pieces. This process primarily relies on the following equipment:

Jaw crusher: Used for coarse crushing, breaking large raw materials to 50-100mm.

Impact crusher: Used for fine crushing, further crushing raw materials to less than 25mm.

2. Raw Material Grinding Equipment

The crushed raw materials need to be ground into a fine powder to form raw meal. Key equipment includes:

Ball mill: Used for raw meal grinding. Models with a 30-ton hourly production capacity include Φ2.2×7m (production capacity 22-30 tons/hour) or Φ2.7×6.0m (production capacity 30-40 tons/hour). Vertical mill: Another highly efficient grinding equipment suitable for small production lines with low energy consumption.

3. Calcination Equipment
Raw materials are calcined at high temperatures to form clinker. Key equipment includes:
Rotary kiln: Small production lines can use rotary kilns with a diameter of 2.5-3.0 meters, with a calcination temperature of approximately 1450°C.
Preheater and calciner: Improve calcination efficiency and reduce energy consumption.

4. Cooling Equipment
Calcinated clinker requires rapid cooling. Commonly used equipment includes:
Grate cooler: Cools hot clinker to below 100°C for easier processing.

5. Cement Grinding Equipment
Clinker is mixed with gypsum and other materials and then ground to produce cement. Key equipment includes:
Cement mill: Models such as Φ3.2×13m can achieve an hourly output of up to 120 tons/hour, but this needs to be adjusted based on actual needs.

6. Typical Configuration Example
Crushing System: Jaw crusher (30 tons/hour) + impact crusher. Grinding System: Φ2.7×6.0m ball mill (30-40 t/h) or 30 t/h vertical mill.
Calcination System: 3.0m diameter rotary kiln + five-stage preheater.
Cooling System: Grate cooler (SCH315R).
Grinding System: Φ3.2×13m cement mill.

7. Summary
Constructing a small cement plant with a production capacity of 30 t/h requires comprehensive consideration of equipment configuration for raw material crushing, grinding, calcination, and cooling, ensuring that each stage has optimal capacity and operates efficiently. Appropriate equipment selection not only improves production efficiency but also reduces energy consumption and operating costs, resulting in higher economic returns for investors.