Tag Archives: mechanical process engineering

Environment Energy

IFAT premiere: New ball shaper for fine fractions containing metal reclaims more recyclable materials

Reclamation of recyclable materials from e-scrap, shredder residues and slag

IFAT premiere: New ball shaper for fine fractions containing metal reclaims more recyclable materials

BHS rotor impact mills of type RPMV/RPMX are high-performance crushers

At IFAT 2016, BHS-Sonthofen unveiled the new rotor impact mill of type RPMX for separating composite parts and shaping metals from recycling products such e-scrap, shredder residues (ASR) and slag into balls. The new RPMX is a further development of the established rotor impact mill of type RPMV and generates finer fractions from which recyclable materials can be reclaimed more effectively. It enables the efficient reclamation of materials such as stainless steel and cable strands, which were previously considered problematic.

The rotor impact mill of type RPMV is an established recycling machine used for separating composites, crushing brittle components and shaping ductile components into balls in a wide variety of applications. The new rotor impact mill of type RPMX from BHS-Sonthofen is a valuable addition to the existing range of systems for recycling residual materials.

The gap between the grinding tools and the anvil ring on the new machines is much smaller: The gap width is only 5 mm. In combination with higher circumferential speeds, they generate finer fractions and intensify the ball-shaping effect, whereby a much higher proportion of materials is reclaimed than before.

One application example is the disaggregation and shaping of wires and strands into balls. Previously, conventional sorting systems were not able to separate these wires and strands because long thin parts evaded the separation process in air separator tables or non-ferrous separators. The RPMX compacts and shapes individual parts into balls so that they can then be separated cleanly. The machine is also suitable for handling pure cable fractions.

The „Zurik“ fraction of mixed shredder residues containing between 30 and 85% metal (predominantly stainless steel but also copper and aluminum) can now be efficiently separated into individual components after being processed in the RSMX.

The technology in detail

The input material is fed into the machine from above by means of the central input tube. When it hits the cover plate of the rotor, it is accelerated outwards by the centrifugal forces and falls into the grinding gap between the horseshoe-shaped impact hammers and the anvil ring. Here, it is struck by the impellers and thrown against the outer wall. The material passes from top to bottom all the way through the gap between the impact hammers and the stationary ribs on the anvil ring. During this process, it is highly stressed by impact, shock and shearing forces that cause the composite parts to separate. The brittle components are crushed while multiple stresses shape the ductile components into balls. The material leaves the rotor through the gap between the rotor and the anvil ring and falls downwards through the two discharge chutes.

The new rotor impact mill from BHS-Sonthofen is available in two versions: the RPMX 1116 with a diameter of 1.10 m, eight impact hammers and a maximum drive power of 200 kW, and the larger RPMX 1516 with a diameter of 1.50 m, twelve impact hammers and a maximum drive power of 315 kW.

Pre-shredding

Object fractions between 300 and 500 mm in size are pre-shredded by an BHS Rotorshredder of type RS, which generates fractions smaller than 30 mm suitable for the rotor impact mill. Before the material can be further processed in the RPMX, an air sifter removes any potentially harmful components.

Background: BHS rotor impact mills

Also known as „ball shapers“ in the industry, the BHS rotor impact mills from the RPMV series are high-performance crushers with a vertical shaft for applications in the recycling industry. The ring-shaped rotor is fitted with horseshoe-shaped hammers. In combination with the toothed anvil ring, this unique impeller rotor is able to selectively crush composite parts.

Materials that have different physical properties are separated from one another in the machine and entangled materials are singled out. At the same time, the machine shapes the ductile metals into balls and cleans them. In the subsequent process steps, they are much easier to separate than elongated metal parts, which can become entangled and matted.

About BHS-Sonthofen

BHS-Sonthofen is an owner-operated group of companies in the machinery and plant engineering field, based in Sonthofen, Germany. The company offers technical solutions for mechanical process engineering, concentrating primarily on mixing, crushing, recycling and filtration. With more than 350 employees and several subsidiaries, BHS-Sonthofen has a global presence.

The Recycling Technology division offers a wide range of machines and systems for the recycling industry. The product spectrum covers the processing of brittle-hard waste materials such as electronic waste, slag, shredder residual fractions etc., as well as resilient materials such as tires, cables, and refuse-derived fuels.

For more information, see www.bhs-sonthofen.de.

Firmenkontakt
BHS-Sonthofen GmbH
Roland Schmid
An der Eisenschmelze 47
D-87527 Sonthofen, Germany
+49 8321 6099-231
press@bhs-sonthofen.de
http://www.bhs-sonthofen.de

Pressekontakt
VIP Kommunikation
Regina Reinhardt
Dennewartstr. 25-27
52068 Aachen / Germany
+49.241.89468-24
reinhardt@vip-kommunikation.de
www.vip-kommunikation.de

English Press Releases

BHS-Sonthofen implements largest ever candle filter plant for lean amine solution

BHS-Sonthofen implements largest ever candle filter plant for lean amine solution

Erection of the new gas processing plant at the South Ýolöten natural gas field in Turkmenistan

Filtration of amine solution in cleaning of natural gas: Sonthofen machine manufacturer expands its product range with the construction of complete plants.

BHS-Sonthofen delivered a compact candle filter plant to Turkmenistan in 2011. With an hourly capacity of 300 m³ of lean amine solution, it is the largest filter plant that BHS has ever built for this application. The project demonstrates once again that BHS has successfully accomplished the evolution from a manufacturer of individual filter components to a supplier of complete plants.

BHS has supplied the filter plant of modular design as part of the crude gas cleaning stage for natural gas production in the South Yoloten gas field, one of the world“s largest natural gas fields in the South East of Turkmenistan. It is used for cleaning and refining the crude gas in the „amine sweetening“ process step.

For Jürgen Maurer, sales director for the filtration technology division at BHS-Sonthofen, the order represents a milestone in the company“s history: „Whereas we previously used to supply mostly individual filter plants, we now additionally offer our customers the entire spectrum of plant construction from design through to commissioning – including the piping and steel structure, for example, as well as the complete process control engineering. We are thus opening up new market segments as we are now addressing a broader range of customers.“

Featuring a filter area of about 80 m2 each, the candle filters remove impurities such as piping debris from the lean amine, thereby protecting the actual core of the plant – the activated carbon filters, also supplied by BHS – from foreign matter. The candle filters regenerate approximately 150 m3 of lean amine solution per filter unit every hour.

The scope of supply also includes the pre-coat station, the activated carbon filter units, a downstream polishing filter, all pumps and fittings as well as the entire measuring and control technology. The plant is integrated into the customer“s process control system.

In the amine sweetening process, the sour gas contains impurities such as carbon dioxide (CO2) and hydro sulfide (H2S) are absorbed in an amine scrubber and adsorbed by an activated carbon filter. The amine suspension is clarified by the BHS filter systems. They filter solid particles – piping abrasion and dust for example – and thus considerably lengthen the life of the amine solution.

The plant was shipped to Turkmenistan in 2011 in fifteen 40-foot containers. The modular construction principle enabled the plant to be erected in a minimum of time.

Background: BHS candle filters

BHS candle filters are batch-operated filters with vertically arranged, candle-shaped filter elements. They are used for residue filtration, particularly for suspensions with a low solids content or with very fine, amorphous particles that are hard to separate.

BHS candle filters can be used in a very wide range of applications on account of their diverse modification potential; primarily in batch operation with dry discharge but also as slurry or wet-discharge filters in quasi-continuous operation.

The filter candles essentially consist of the perforated support grid with evenly spaced welded rods, a textile filter cloth selected to meet the individual requirements, and the internal filtrate discharge pipe. The unique design and the large, open cross-sections of the support grid and discharge pipes ensure good adhesion of the particles during filtration, a high filtrate flow rate and reliable cake discharge by gas blowback or backflushing from the filtrate side.

The candles are mounted on individual collection registers. This allows selected registers to be isolated from the filtration process without interrupting operation. It is also possible for the residue to be removed from specific registers or discharged in portions.

About BHS-Sonthofen GmbH

BHS-Sonthofen develops and manufactures machines and plants for mixing, crushing, recycling and filtration applications in the field of mechanical process engineering. The company focuses on customized solutions tailored to the specific requirements of individual industries.

For over 50 years, BHS has manufactured a wide range of filtration plants for solid-liquid separation in batch and continuous processes. These plants are used on a daily basis by over 1000 customers for highly diverse applications and are regarded as innovative, state-of-the-art solutions. A common feature of all BHS filters is that they work with a comparatively thin cake.

Well-known customers in the construction and building materials, mining, chemicals, pharmaceuticals and food processing industries as well as the environmental and waste management sectors and other major industries have been relying on machines and plants from BHS-Sonthofen for many decades.

BHS-Sonthofen GmbH has been an independent group of companies since 1996. Its history stretches back to an iron-smelting works founded 400 years ago on the site of the present-day company premises. Today, BHS-Sonthofen is a mid-sized global player with over 300 employees, 210 of whom work in Sonthofen. The group of companies is headquartered in Sonthofen, Germany, and has subsidiaries in the US, China and India.

For more information, visit www.bhs-sonthofen.de.

Kontakt:
BHS-Sonthofen GmbH
Roland Schmid
An der Eisenschmelze 47
D-87527 Sonthofen, Germany
+49 8321 6099-231
press@bhs-sonthofen.de
http://www.bhs-sonthofen.de

Pressekontakt:
VIP-Kommunikation
Regina Reinhardt
Süsterfeldstrasse 83
52072 Aachen, Germany
+49.241.89468-24
reinhardt@vip-kommunikation.de
http://www.vip-kommunikation.de