Executor of Nab Andish Company -Turbo Vacuum

 Employer:  Iranian Ghadir Iron and Steel

 Date: August 2015

Seal leg next to the reformer:

about one and a half meters from its bottom of the sludge, along with a small amount of pellets or sponge iron was collected. This seal leg was completely cleaned in three steps.

Compressor seal leg of the first step of processing:

Due to the proximity of this seal leg with the furnace and cross-sectional falls during cleaning, etc. this seal leg was filled from sponge iron so that about 8 meters from the floor of seal leg was filled with a mixture of sludge and sponge iron, and in the first step, the Turbo Dredger machine sank in the sludge of the well floor and had a performance problem. By changing the settings of the machine, we managed to pump the sludge and waste of the well floor. The cleaning operation was executed in 7 steps of washing completely.

 

seal leg
Two Step of Compressor Seal Leg:

After preliminary inspection and determining the depth of the seal leg, it was determined that about 3.5 meters from the floor of the seal leg are filled with sludge and sponge iron. This sea legl was completely cleaned with 4 steps of washing.

Cooling Compressor Seal Leg:

This seal leg also had about 3 meters of sediment, which we reached the standard depth with 4 steps of washing.

Cooling Compressor Seal Leg:

This seal leg also had about 3 meters of sediment, which we reached the standard depth with 4 steps of washing. The point to consider in clearing this seal leg was the presence of a lot of oil in it, so it seems that this compressor has an oil leak and the cases are referred for further investigation.

Reform Cooler Seal Leg:

Due to the drastic change in the depth of this seal leg with other seal legs, the height of the machine was changed and the length of the machine was set based on this seal leg.

Obstacles and problems of carrying out the activity: 

Restrictions on having a crane was mentioned as main problem of the executive team for carrying out the activity that the design team intends to meet the need for a crane in the future years by making changes in the machine. Also, the presence of a 90-ton crane with a higher canvas significantly helped to transfer the machine for cooling compressor seal leg.

Suggestions:

Protecting the seal legs, especially the seal legs next to the furnace and covering them with lids, and using suction vacuum cleaners instead of washing with water under the furnace and accuracy at non conduction the pellet towards the seal legs will significantly help to reduce sediments in these seal legs . Also, cleaning seal legs with Turbo Dredger can be easily done in short-term and monthly repairs and there is no need for annual repairs to clean them. The company has the ability to completely cleaning the seal leg or seal legs desired by the employer along with evacuation and piping the connector pipes in monthly repairs.

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