It is a complex process of engineering. One cannot just make an incinerator at the drop of a hat. Lots of information, data – present and past, ideas through brain storming, design criteria, waste type, shape, calorific value and other characteristics are required to be collected. Only then it is possible to prepare the mass flow with equipment configuration.

In short the following considerations are a must:

•                 Information and data: Basic information about the manufacturing process, of which waste is a by-product, its characteristics, form and calorific value, what were the earlier and current practices of waste disposal and their results.

•                 Design criteria: Incineration temperatures, gas residence time, inputs from clients and one’s own experience in sizing of various equipment and components, preferred pollution control equipment for acceptable emissions.

•                 Brain storming: Most of the projects need customised incineration systems. There are, therefore, many challenges to face. Take for example mechanised de-ashing systems. This calls for ideas, opinions and thoughts from all the people involved, such as Design, Production, Projects, etc. Even then, more than one trial may be required before the design is frozen.

•                 Waste type, shape and characteristics: The waste may be solid, semi-solid or liquid, which calls for different loading and treatment methods. How does the waste react to burning? Does it release any toxic gases? If so how to treat them? For example some pesticide by-product waste will produce HCl during burning. The refractory and downstream air pollution control equipment must be able to take care of this. Based on this vital information, the entire design, including MOC of equipment, type of refractory, etc.  may undergo a complete change.

Once all the data is collected, a mass flow calculation helps in determining process flow, equipment configuration, temperatures at various locations, MOC of materials required and projected emissions. This also enables preparation of the General Arrangement and Piping & Instrumentation drawings.

So, you see it is a complex exercise posing challenges which are happily met and resolved by the entire team members of Haat. Be rest assured, the final output will meet and exceed the requirements in terms of capacity, emissions and others.