Focus on fine processing of metal containing residues and battery recycling

Published 4/7, 2022 at 09:13

As a leading provider of technology for the recycling of metalliferous composites and industrial waste, BHS-Sonthofen was focusing on the fine processing of metal containing residues, such as those derived from automotive recycling or electrical and electronic scrap, at this year's Ifat (booth B4-351/450).

A second focus for the company was the process for recycling lithium ion batteries, which has been tested in various reference cases. BHS presented exhibits related to this process, such as a rotor impact mill with a new hammer design, a horizontal dryer, and a separating table.

The company’s goal is to recover valuable resources. To this end, the Sonthofen based group of companies continuously invests in future oriented technologies and novel process solutions that enable customers to extract maximum value, especially when recycling metalliferous composites and industrial waste. At BHS’ appearance at Ifat 2022, the focus was on the fine processing of various metal containing residues, such as automotive shredder residue (ASR), e-scrap, and incinerator bottom ash (IBA). “BHS-Sonthofen has further developed its fine preparation process with extensive tests, thus further improving output quality,” explains Daniel Weber, head of the Recycling & Environment division. “The process works just as well for ASR, taking into account material specific requirements, as it does for the fine processing of all other metal containing materials such as electrical and electronic scrap or cable remnants.”


New hammer design

The heart of the fine preparation process is the rotor impact mill, which BHS was presenting with a new hammer design at the trade show. The RPMX type rotor impact mill is a high performance crusher said to be unique in its field, setting standards in fine processing and metal recovery with its impeller rotor and special anvil ring. The machine reliably separates material composites and removes cable sheathing and other substances that adhere to metals. The new hammer design of the rotor impact mill significantly optimises disaggregation and shaping of the output while simultaneously reducing wear. Due to the improved output quality, fewer or shorter passes are required, which results in higher throughput. In addition, BHS was presenting a new maintenance concept for the machine that simplifies maintenance and inspection work by the operator and, in combination with the new hammer design, ensures high machine availability.


Proven, innovative recycling process

The company’s second focus is on the recycling of lithium ion batteries. For this purpose, BHS has developed a complete mechanical solution that focuses on a high recovery rate of the resources it contains. The process has already been tested worldwide in existing reference plants run by customers. Thanks to the consistently inert process, from the crusher to the dryer, hazards such as fires or the escape of toxic gases can be avoided. Trade show visitors could expect to see the HTC 140 type horizontal dryer used in this process at Ifat. In the process, the dryer applies a vacuum and heats the pre crushed batteries to safely evaporate potentially toxic components. The crushed batteries are no longer hazardous after the drying phase.


Separation technology and pre shredder

From the new technological field of separating, sorting and classifying technology, a separating table from BHS and RW Recycling World was on display at the show. BHS-Sonthofen has held a stake in the Swiss company since 2021. This cooperative venture allows products for separation, sorting, and classification technology to be integrated into processes from BHS in order to offer solutions from a single source, for example, in the fine preparation process. With the depth of added value and process competence thus expanded, the Sonthofen based group of companies has further strengthened its position as a technology leader for the recycling of metalliferous composites and industrial waste.

BHS rounds off its trade show presence with the virtually exhibited ‘Rapax’ pre shredder. The powerful machine, which was launched last year, can be used universally. In its various designs, it is suitable for processing metal fractions, commercial and industrial waste as well as construction waste. With this machine, BHS combines design and function and aims to take pre crushing to a new level.

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