News to Rotary Kiln Delacquering Plants for thermal Recycling

Rotary Kiln Delacquering Plant UBC for HYDRO ALUMINIUM in Neuss

Process Description:

• Rotary Kiln Delacquering Plant for delacquering and removal of organic compounds and contaminants from used beverage cans (UBC) of aluminium, such as lacquers, stickers, contents residues, etc.
• The delacquering takes place in the rotary tube, which is heated by hot flue gas.
• The delacquered UBC material is led into the aluminium melting furnace for recycling.
• The process gas leaving the rotary tube is oxidised with process gas burners in the thermal post-combustion chamber (TPC).
• In the air preheater (LuVo) there is a partial heat recovery.
• The flue gas is used as necessary for heating the rotary tube.
  The remaining part of the flue gas enters the downstream arranged gas cleaning system.
• The selected process represents in conjunction with UBC from the waste stream and the shredder and sorting plant a new development in the recycling of aluminium beverage cans.

Technical Main Data:

• Feedstock / Material:

UBC material from waste stream / deposits

• Throughput rate of wet feedstock UBC:

max. 7,1 t/h

• Operating time:

24 h/d und 7 d/w

• Expected availability without off-line cleaning:

> 97 %

Project Scope:

• Planning, Engineering, Design, Delivery, Erection and Commissioning of a complete Rotary Kiln Delacquering Plant with thermal post-combustion chamber, natural gas burner, air preheater, fans, ducts, piping and valves, instrumentation, electrical systems with LV switchgear, distributed control system, steel structure and platforms.

HUTTER FREI POWER Scope of Services:

• Within the context of a restructuring, the company VSH, subsidiary of the company VOLKER WESSELS, has contracted the company HUTTER FREI POWER (HFP) for the further project execution with project management, process engineering, mechanical engineering, commissioning management and commissioning. Until the first operation, HUTTER FREI POWER identified and executed numerous modifications and improvements. With the first operating experiences the explosion concept has been further developed as well. For this detailled measurements have been executed and evaluated by University and measurement institutes and together with the company HYDRO ALUMINIUM as end-customer. The clarifications with the explosion protection appraiser have led at first to the release of the operation with a UBC mass flow of 4 t/h.
• In August 2016 it has been agreed between the contract parties, that the company HYDRO ALUMINIUM can use the support services of the company HUTTER FREI POWER as well. This contract includes for the delacquering plant the training of the operating personnel, analysis of the operating results, support to the operating engineers, participation at the joint task force and support at future plant modifications.
• In the dual contractor role, further trials have been executed on the supplier-side for the collection and development of fundamentals. The plant modifications, derived from the trial evaluations, have led to the release of the plant full load by the explosions protection appraiser. Furthermore remaining points have been worked-off and after the highly reliable two-week trial run with an availability of 98 %, the contractual hand-over could be achieved.  In the role on the operator side, we have supported at various optimisations, the superintendent commissioning management executed, the operating characteristic further analysed and instructions prepared for the operation. Since September 2017, the delacquering plant can be operated continuously with the full UBC mass flow.

Customers:

• VSH (current TrappInfra Services), Wesel, Germany
• HYDRO ALUMINIUM Rolled Products, Neuss, Germany