Problem

Published: December 22nd 2021

The JK Lakshmi Cement plant in Northwestern India was experiencing excessive buildup in the clinker cooler, creating "snowmen" when molten clinker didn't flow properly from the kiln to the cooling conveyor. Such formations can slow the flow of material and lead to system clogging. To remedy this, the company installed large 300/150 L (92/39 gallon) air blasters with standard nozzles. But operators found that the large tanks put a significant burden on the compressed air system, without completely addressing the formation of snowmen. Due to the punishing high heat environment, the nozzles suffered buildup, clogging and back-flow. Switching them out required cutting out the old nozzles and repairing the refractory lining

The JK Lakshmi Cement Sirohi plant is one of four plants producing 18 mil. tons of cement per year.

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Solution

Published: December 22nd 2021

Leading up to a scheduled shutdown, managers invited the Martin Engineering India team to inspect the area and provide a solution. To offer more powerful performance with less draw on the compressed air system, technicians installed five 70L (19 gallon) Martin® Typhoon Air Cannons mounted on Y pipe assemblies with SMART™ Series Jet Nozzles. The Typhoon features a smaller tank delivering improved per-shot pressure and a back-facing valve for easy maintenance without tank removal. The Y pipe assembly offers permanent mounting for easy tank and nozzle replacement, with no shutdown required. The SMART Series Jet Nozzles are made to withstand high heat environments with a slotted head design for greater spread and no back-flow.

The old nozzles below had to be cut out, while the new orange ones simply slide out from the "Y" assembly.

Result

Published: December 22nd 2021

After a year of testing, operators report that the equipment has performed as specified, with less burden on the compressed air system and no evidence of snowman buildup over the entire test period. "We are very satisfied with the outcome," said an operator close to the project. "Also, cleaning efficiency has improved because of the greater blast force." Managers have indicated that, due to the improved performance and durability of the equipment, they intend to use the same technology in other parts of the plant.

The cannon configuration directs pressurized air toward critical areas to minimize accumulation.