What are the technologies to manufacture fly ash bricks?
Fly ash bricks
Q Green Techcon describes two primary technologies for manufacturing fly ash bricks and related products such as blocks and pavers.
Technology 1: hydraulic system
The hydraulic approach uses a hydraulic cylinder, and the raw material is compressed in a steel mould. This method works best with high powder content materials and typically uses particles no larger than 5 mm.
Key advantages:
A budget friendly entry point, starting at around Rs. 13 lakh.
Minimal labour requirement, around 5 to 6 workers.
An optional batching plant for higher production volumes.
Q Green machine models using hydraulic technology:
QGH Smart: around 7,000 bricks per 8 hour shift.
QGH 17: around 10,000 bricks per 8 hour shift, priced at around Rs. 18.5 lakh.
QGH 25: includes mixer and gate automation.
QGH 25 Twin: a dual system with a single batching plant.
Technology 2: vibration system
The vibration technology uses variable vibration that prevents the settling of larger particles, giving superior quality bricks. This approach also suits concrete products, including pavers, blocks and hollow blocks.
Key advantages:
Higher production volumes, with 20 to 22 bricks per stroke possible.
Full automation capability with reduced labour needs.
Suitability for large scale projects of 50,000 or more units.
Better economic viability for handling systems.
Q Green partners with REIT, a Chinese technology pioneer, and manufactures these machines in India.
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