AFR Burning Made Easy

With the rise in global warming due to the extensive usage of non-renewable fossil fuels, considerable focus is now being placed on reducing the global carbon footprint. One of the major consumers of fossil fuels is the cement industry, which also is a major pillar of the global economy and its infrastructure. In the developing world the demand for cement is growing extensively along with fossil fuel usage.

Now almost all cement groups are focussing on the usage of Alternate Fuel and Raw materials (AFR) which predominantly consists of biomass, plastic, rejected clothes, waste rubber, drugs, old currency notes, waste fuel, and industrial waste. The average present usage of AFR in India is in the range of 2 – 4%, which is also very close to the global average.

Methodology

Saiphia Technology has viewed the above usage data and also had extensive consultations with different clients, and has found that some of the main reasons that AFR usage has not been increased are as follows:

• Project cost, normally the payback time for project cost is in a range of 7 to 11 years.
• Availability of material with consistent heat values.
• Preparation of waste.
• Moisture.
• Waste size.
• Weighing of waste material.

Saiphia engineers considered all these challenges in system design and developed the Saiphia Fludo System,which was successfully implemented in one plant for trials. The Fludo system has the following advantages:

• No restriction of shape, size, and type of fuel through air-sealed gate.
• No reduction or shredding of AFR is required.
• No preparation of AFR is required.
• No restriction on AF filling.
• Ground floor material feed – low civil structure cost.
• Gate valve for reject.
• C4 Meal chute for temperature control.
• Provision for burner.
• TAD damper operation for Oxidising and NOx control.
• High efficiency and flexibility.
• Low maintenance.
• Low Investment needed on feeding system.
• Low investment cost as Fludo calciner is installed on ground.
• System can be made online and off-line as per operator requirements without disturbing the operation.

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Read the article online at: https://www.worldcement.com/special-reports/24102022/afr-burning-made-easy/