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ROHREX VSK MINI CEMENT PLANT PROCESS FLOW


 

 
Mini Cement Plants 50 TPD – 300 TPD

Cement manufacture can finally be brought within the financial reach of rural development authorities and local enterprise by implementing our VSK (Vertical Shaft Kiln) technology.
Traditionally, purchasing cement from large-scale manufacturers can incur substantial premiums, particularly if the product is transported to rural areas.
A Rohrex VSK Mini Plant transfers control of the cement industry from major producers and places it firmly in the hands of local enterprise.
We provide detailed engineering and project management. Supervision of installation, training and management assistance

Significant advantages:
  • Cement industry brought within the reach of small enterprise and local communities.
  • Quick return on capital investment.
  • Regeneration and development of rural areas and uplift of local economy.
  • Low capital investment costs and minimum infrastructure facilities.
  • Making full use of small scattered limestone deposits.
  • Indigenous self-sufficient profitable enterprise without continued reliance on imported technology and equipment.
  • Portland cement produced is comparable with large manufacturing plants and is to international standards.
   
   
 
 

Manufacturing Process

1. Crushing Section:- Raw materials including limestone, clay, coke etc are crushed in separate crushers and stored automatically in separate silos.
2. Storage & Proportioning:- The raw materials are extracted in required proportions from the silos by table feeders and conveyed to the raw milling section.

3. Raw Milling :- The raw mix is ground into a Ball Mill (or other) to the required fineness producing Raw Meal, this is transported for Homogenizing

4. Blending & Homogenization :- The raw meal is homogenized in the blending silos, and is stored automatically in storage silos for feeding to the kiln.

5. Palletizing & Burning:- The nodules are made into a nodulisers and charged into the kiln for burning. The clinker after discharge is stored in the clinker yard through deep Bucket Elevator.

6 . Clinker / gypsum crushing, storage & proportioning: - Clinker & Gypsum after crushing stored into the hoppers and extracted in the desired proportion with the help of table feeders and transported to the Cement mill Hopper.

7. Cement Milling: - The clinker & Gypsum mix is ground in the cement mill to produce cement.

8. Storage & Packing:- The cement is stored in cement silos and aerated, tested and packed for dispatch.

Raw Materials
1. Limestone T.C.-90%, CaO - 50% min. (MgCO3 < 5%)
2. Clay Al2O3 - 14-18% (SiO2 - 60% max.)
3. Coke Calorific value: 4000 K Cal/Kg min.
4. Gypsum CaSO4.2H20- 75% min

Project Brief

Plants Supplied TPD 50 100 200 300
Land (Sq. M) 8000 10000 12000 16000
Power (KW) 375 750 1500 23000
Time scale (months) 6 - 8 6 - 8 10 - 12 10-12
 
Raw Material TPD
Lime Stone 65.00 130.00 260.00 390.00
Clay 10.00 20.00 40.00 60.00
Additive 0.50 1.00 2.00 3.00
Coal (4500 kcal/kg) 10 30 45 60
Gypsum 2.50 5.00 10.00 15.00
Manpower (for 3-8 hr shifts)
Administrative 3 3 3 6
Technical 9 9 9 12
Skilled Workers 9 9 12 15
Unskilled Workers 18 18 24 30
 
Utilities
Power (KWH/T)

85 - 90

85- 90

85 - 90

85 - 90

Fuel (kcal/kg)

800 - 950

800 - 950

800 - 950

800 - 950


 



       



 
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