ENGINEERED CLEANING SOLUTIONS FOR POLYETHYLENE PLANTS
Polymer materials are difficult to remove and polyethylene plant cleaning projects are considered to be some of the most challenging jobs in the industrial cleaning industry. By applying specialized technology and procedures, DeBusk makes polyethylene cleaning projects consistently successful.
DeBusk uses specially designed high-pressure hydro blasting/cutting tools to mechanically clean lines, loop reactors, vessels and heat exchangers in polyethylene plants. (For a chemical cleaning solution, see PEP™ Polymer Extraction Process)
DeBusk successfully increases cleaning efficiency through basic engineering:
- Increasing the volume of water used in cleaning to the maximum capacity of the hoses
- Specifying the largest hoses possible
- Employing nozzle rotation to enhance effectiveness
- Adding multiple cleaning heads and multiple lances whenever possible
- Utilizing the latest technology in nozzle design to generate the fine, high-precision water stream needed to cut plastic
To carry out these procedures, polyethylene cleaning jobs are performed by specially trained crews led by experienced project managers.
Lines and Loop Reactor Cleaning
Process lines and loop reactors are cleaned with the DeBusk line-cleaning system. This system is designed for large-diameter piping and effectively dislodges the thin layer of hard-to-remove plastic that adheres to the wall ID.
These photos show piping before (left) when pipe walls were coated with a thin layer of white plastic and after (right), when it was cleaned to bare metal.
For heat exchangers in polyethylene plants, DeBusk uses multiple lances whenever possible.
These photos show a triple rotary lancing machine operating at a polyethylene plant. The exchanger was plugged solid with plastic. The DeBusk crew used a 70-foot long tube lancer operating at 40,000 psi to clean the exchanger. Reducing the cleaning time was critical and the DeBusk team completed the job and allowed the exchanger to return to service as quickly as possible.
In polyethylene units, vessels can become filled with plastic. To clean them, DeBusk uses automated hydro blasting equipment and the most technically advanced nozzle designs that efficiently remove polymer material.
Extremely high water volumes and pressures minimize cleaning time. Standard cleaning involves using 40,000 psi pressure with hydro blasting specialists entering the vessel to perform the cleaning. Projects can also be completed using rotating 3D nozzles that eliminate hand cleaning and allow continuous operation. To achieve the high volumes and pressures necessary, DeBusk uses 605 hp pumps.