References

Cellulose processing plant

McAirlaid’s, one of the leading producers of nonwovens and a specialist in absorption; Location: Berlingerode, Germany

Cellulose processing plant

Cellulose is a product of nature. It is the main component of plants and trees, where it stabilizes the cell walls. Without cellulose there would be no trees, without trees there would be no paper. And without cellulose there would be no hygiene products such as bed pads, medical products such as surgical masks or biodegradable cigarette filters. Our customer McAirlaid’s manufactures all of these products. Dreiling Maschinenbau GmbH has designed and manufactured a cellulose processing plant for them.

Our client:

McAirlaid’s, one of the leading producers of nonwovens and a specialist in absorption; Location: Berlingerode, Germany

The mission

Design, manufacture, assemble and commission a processing plant for cellulose as the start of the production chain. The machine is to transform a firmly pressed block of cellulose into fluffy, cotton wool-like material and feed it for further processing.

The challenge

The main challenge with this order was the standard-compliant implementation with regard to fire and explosion protection. Similar to flour in a flour dust explosion, the flaky cellulose material can also deflagrate under certain conditions or a dust explosion can occur, for example when a certain level of fine dust saturation is reached and sparks then form. A worst-case scenario that had to be taken into account for this order. We planned appropriate protective measures and obtained fire protection reports.

Our solution

The machine went into operation within 12 months. The cellulose blocks are manually unpacked at the blue roller conveyor as a feeder (front) and then enter the elevator / shaft (grey), which feeds them to the shredder. There, the material is first shredded and then enters special agitators and defibering units. The now flaked material is then extracted and sent for further processing.

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