The New Electrosteel Planet-Friendly Slag Filtration Process

When it comes to exploring planet-friendly manufacturing processes, the #ElectrosteelGroup shows the way.
#SrikalahasthiPipesLtd, an Electrosteel Group company has created a new Filtration process of granulated slag, a critical part of the blast operation (used to make DI Pipes).

In this new process, the chances of slag entering the clean water sump, is very minimal — thus enhancing the life of the pump and the pipeline.

Technical details: When the concept of new blast furnace was conceived, the slag pit of the 250 m3 existing furnace was to give way for the dust catcher and Gas Cleaning Plant (GCP) of the new furnace.

Hence the new Slag Granulation Plant (SGP) was to be commissioned much more in advance so that the slag from the operating furnace could be diverted to the new SGP.
Taking this as a challenge the Srikalahasthi Pipes Limited (SPL) MBF team started this SGP Project in September 2019.

This is a new concept of filtering granulated slag from water by siphoning & sedimentation method.

The slag, after granulation, gets into the main sump from where the water overflows to the second pump by siphoning which in turn flows into the clean water sump thru a filter mesh.

Granulated Slag that gets settled in the first two sedimentation sumps is taken out through an overhead grab bucket crane.

The volume of the sedimentation sump is 38 x 12 x 6 and the clear water sump is 4 x 12 x 4.

Amount of construction steel used in the system is 150 tons and the amount of concrete is 1200 m3.

The overhead crane used for removing of slag is 10T grab bucket with a span of 19 meters.

The new system was completed and went into operation recently.

At Electrosteel, we call this #AatmaNirbharBharat!