Fail-safe PLC system is used in critical safety applications in refineries, petrochemical/chemical plants (Picture: ABB)
Risk Detection

How PLCs Help to Avoid Hazards and Increase Plant Safety

In the present times, when strategies to ascertain workplace safety and environment conservation have become a necessity, fail-safe PLC systems can work wonders. These systems minimize the risks involved in critical applications where the possibility of hazards is high. The fault-tolerant architecture ensures that the failure of a component does not interrupt the process operation, thus ensuring safety.

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Industry 4.0 is a vision of tomorrow’s manufacturing. It includes concepts such as ‘ConnectedFactory’ and ‘Industrial Internet of Things’ (IIoT). (Source: depositphotos.com/SergeyNivens)
Industrial Internet of Things

The Next Industrial Revolution: How Future–Ready is India's Process Industry ?

A feature on the Indian process sector’s ability to conform to Industry 4.0 – Industry 4.0 has become a keyword for the engineering world as a whole. However, it is a challenging leap that comes along with various challenges. With industry experts’ views on the several challenges and possible solutions, we have tried to find out whether the Indian process sector is ready to embrace Industry 4.0.

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Compared to a conventional screw heat exchanger the new design, a 2:1 screw pitch ratio — and a corresponding 1:2 speed ratio between the two shafts —  provides self-cleaning operation, aided by narrow gaps between the screw flights. (Picture: Köllemann)
Modified Screw Heat Exchanger

Screw Heat Exchanger Keeping Itself Clean

For many industries that produce, process, or handle bulk solids, the screw heat exchanger is a well-known piece of equipment for heating, drying and cooling. With the same working principle as a conventional screw conveyor, however, most screw heat exchangers rely on the flowability of the bulk solid for good mixing and to keep their heat transfer surfaces clean. As a result, these standard screw heat exchangers cannot be used for sticky, pasty or adhesive materials or slurries.

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