Harsco Metals: Slag Processing

By efficiently screening and removing metal rebars and oversized contaminants, Harsco minimizes conveyor belt damage, reduces downtime, and repurposes slag into valuable materials for construction and road applications.
Case study

Harsco Metals: Slag Processing with ALLU

Laverton, Melbourne, Australia

Material Slag with embedded metal rebars and oversized contaminants

Industry Construction, Waste material handling

Application Slag processing and material screening

Function Screening slag, separating contaminants

Model ALLU DN 2-12, ALLU DH 3-17 with X75 drums

Harsco Metals and ALLU – A Partnership for Operational Excellence

Harsco Environmental is a global leader in providing sustainable solutions for the steel and metals industries. At its Laverton branch in Melbourne, Australia, the team specializes in slag processing, repurposing industrial byproducts into valuable products like aggregates for the road and civil industries. However, recurring operational challenges threatened efficiency and productivity, prompting the need for an innovative solution.

The Challenge: Conveyor Belt Tearing

At Harsco’s Laverton branch, the conveyor belts were frequently damaged during slag processing. The issue arose from the fact that the slag collected from the caster pit contained metal rebars and other oversized contaminants that were not effectively screened out using the existing equipment. These materials were not properly filtered using a skeletal bucket, leading to sharp items damaging the downstream conveyor belts during transfer to the crushing line. This caused increased downtime due to frequent maintenance, high operational costs from repairs and inefficiencies, as well as safety risks and disruptions in the overall slag processing operations.

Impact:

  • Increased downtime due to frequent maintenance.
  • High operational costs from repairs and inefficiencies.
  • Safety risks and disruptions in slag processing.

The Solution: ALLU Transformer Bucket

Recognizing the need for a more efficient and robust screening solution, Harsco Metals’ maintenance team contacted Walkers Hammers, the ALLU dealer in Melbourne, Victoria.

  • Site Study and Demo:
    On 12th April 2024, Sami Rahman, ALLU area sales manager conducted a site study and recommended the ALLU DN 2-12  Transformer bucket with specialized X75 drums. Carlo Costanzo, Walkers Hammers’ service technician, prepared the equipment by fitting a head bracket for a CAT excavator.
  • Key Stakeholders at the Demo:
    The demo was attended by General Manager Andrew Hayes, site supervisor Nazz, and Dan from the maintenance team. The ALLU bucket demonstrated its ability to screen slag efficiently, removing metal rebars and oversized contaminants while protecting downstream equipment.
  • Extended Testing:
    Impressed by the demo, Harsco Metals rented the ALLU DN 2-12 bucket for two weeks to test it with their operators across multiple shifts. This ensured operator familiarity and confidence in the equipment’s performance.

The Result: Quick Decision and Seamless Delivery

At the conclusion of the rental period, Walkers Hammers presented a sales offer tailored to Harsco’s needs.

Bucket Selection:
Considering the continuous-duty operation and need for a robust solution, the ALLU DH 3-17 with X75 drums was proposed.

  • Features:
    • Two hydraulic motors for enhanced torque.
    • Heavy-duty frame for durability in demanding conditions.
    • X drums with Changeable blades  to easily replace when they wear out

Approval and Delivery:
Harsco’s management swiftly approved the purchase, thanks to the proven performance during trials and Walkers Hammers’ prompt service. The equipment was ordered and delivered in July 2024, ensuring minimal disruption to operations.

Conclusion: A Partnership for Productivity

The collaboration between Harsco Metals and Walkers Hammers highlights the value of effective problem-solving and reliable dealer support. The ALLU DH 3-17 bucket not only resolved a critical challenge but also set new standards for efficiency, productivity, and sustainability in the metals recycling industry.

With ALLU’s robust solution and the dealer network’s readiness, Harsco Metals reinforced its commitment to operational excellence and sustainable processing—setting a benchmark for efficiency in the metals recycling industry.

Timeline:

  • April 2024: Problem identified and demo conducted.
  • April–May 2024: Two-week rental period for extended testing.
  • July 2024: Delivery and implementation of the ALLU DH 3-17 bucket.

Screening Bucket – D-Series

Carriers 6 – 45 t
Versatile DN-, DS- and DH-Series Screening Buckets serve in a wide range of applications ensuring high-quality material processing on-site.

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Recycling of Asphalt: ALLU & MRD Plant

MRD Plant uses ALLU screening buckets to recycle asphalt, PFA, and more—cutting costs and boosting productivity on-site.
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Recycling of Asphalt, PFA, and More: ALLU & MRD Plant

Leicestershire, United Kingdom

Material Asphalt, Pulverised Fuel Ash (PFA), Road Planings

Industry Asphalt, Waste material handling

Application Recycling

Function Cost-Effective Processing, On-Site Recycling

Model ALLU DH 4-17 and DS 3-23

COST EFFECTIVE CRUSHING
ALLU screening buckets transform contract crushing & screening business

When Leicestershire-based MRD Plant, which provides nationwide services to the UK recycling, construction, quarrying & mining sectors, first invested in a second-hand ALLU screening bucket just over a year ago, they quickly realised the benefits of this innovative Finnish-manufactured hydraulic attachment. Since then, they have added three new models to their machinery fleet, all supplied by dealers Blue Group.

“The ALLU screening bucket is so much more efficient, productive and less expensive than bringing a mobile crushing plant on to the work site…”

They were initially attracted to the ALLU DS 3-23 screening bucket after securing a series of relatively small crushing and screening contracts, as it was more cost-effective for their clients than employing an expensive mobile crusher on the job site. Earlier this year, they took delivery of a brand-new ALLU DH 4-17 model, primarily to process asphalt road planings that would otherwise end up in a landfill.

MRD Plant’s Managing Director, Tom Chapman, has nothing but praise for the ALLU transformer buckets, which can screen, crush, pulverize, mix, and separate a wide range of materials. If the material is particularly wet or dirty, they are far more efficient at processing it than a standard mobile screener.

Using the machine’s hydraulic system, the ALLU screening buckets—virtually converting your excavator or loading shovel into a mobile processing plant—are user-friendly and allow for quick attachment, ensuring easy control and operation. With interchangeable blades and spacings of various sizes, you can easily adjust the particle size to meet the different requirements of job sites.

“In many cases, an ALLU screening bucket is much more efficient, productive, and less expensive than transporting a mobile crushing plant to the work site. That’s something we began to realize when we invested in that second-hand model last year. Some of the contracts we secure now involve processing just a few hundred tonnes of material over a couple of days, and it would have been inefficient to set up a standard mobile crusher on-site.

Had we done that, we would still have to use a loading shovel to feed the crusher. The fact that we can fit an ALLU screening bucket to the shovel means we are literally halving our fuel costs and using less labour on-site,” said Tom. “As a result, we can pass those cost savings on to our clients, which they appreciate.”

The ALLU DH 4-17 screening bucket, one of the largest in the D-Series range, is specifically used by MRD Plant to process road planings. However, it can also screen and separate various other materials, including different soil types, sand, gravel, topsoil, compost, demolition waste, biomass, processing, and products of different fractions. This makes the D-Series suitable for various applications, including construction, excavation, recycling, landscaping, and agriculture.

DOING MORE FOR LESS


More or less permanently fitted to a 35-tonne Hitachi Zaxis 350-7 excavator, the ALLU DH 4-17 screening bucket is in constant use.

“It essentially does the same job for less than a top-of-the-range mobile crusher,”

added Tom, who established MRD Plant in 2022 after working alongside his father in a similar business before it was sold in 2019.

Tom Chapman, Managing Director, MRD Plant

“Apart from the versatility of the ALLU screening buckets, I was also attracted to them because of their simplicity. They are easy to use and much easier to maintain compared to a standard mobile crusher. Plus, being fitted to an excavator or loading shovel, they enable us to access restricted sites where we might not be able to bring in a separate crusher unit.”

The other three ALLU buckets in the MRD Plant crushing and screening division are fitted to two JCB loading shovels and a smaller Hitachi excavator. They are easily interchangeable to suit various applications. One of the ALLU transformer buckets has been used to break up and screen Pulverised Fuel Ash (PFA), also known as fly ash, which can then be partly used as a cement substitute in the manufacture of concrete blocks. Extremely wet PFA would be impossible to screen using a conventional mobile screener, and this material would normally end up going to landfill.

In just a few short years, Tom Chapman has built MRD Plant into a successful and growing contract crushing and screening operation that can take on projects ranging from small-scale work to larger, long-term contracts. In addition to the ALLU buckets, he currently operates two mobile crushers, three excavators, and five loading shovels.

PLANT HIRE DIVISION


The business also includes a plant hire division with an expanding fleet of excavators, loading shovels, mobile jaw crushers, and screeners, all available on either an operator or self-drive rental basis.

The plant hire division also offers a variety of ALLU transformer buckets, which are not only limited to aggregate processing but can also be used to meet the requirements of almost any application—from pipeline filling and compact soil processing to highway construction and asphalt recycling. These buckets serve a range of sectors, including quarrying and mining, and wood chip & biomass production.

Since starting the company, Tom has enjoyed a highly successful working relationship with both Blue Group and ALLU.

“They have been very supportive and have put in a lot of effort to ensure we have screening buckets that work for us, especially with the DH 4-17, which we primarily use for processing asphalt. Any issues or queries we have are dealt with promptly and efficiently, and we look forward to building on that relationship going forward.”

Credit: Originally published by The Awesome Earthmovers Magazine

For more information, visit: https://blue-group.com/products/screening-buckets/

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Case study

Making construction recycling easy

France

Material Construction waste

Industry Construction, Waste material handling

Application Construction and Demolition

Function Construction and Demolition

Model ALLU D-Series

Problem

Having to transport waste from a construction site to a waste center. This increases costs due to transportation and material purchases.

Solution

ALLU Screening Bucket is an ideal choice whenever you need to screen, crush, mix, separate, sort, pulverize, or load these materials to the desired fragment size. Reducing the waste to smaller or more uniform fragment sizes makes it easier and faster to reuse them. The debris that is generated in construction and demolition sites is bulky and heavy to handle, traditionally increasing your transportation costs and double handling operational costs. ALLU takes these issues away, increasing your operational efficiency. The ALLU recycling bucket sorts materials from actual waste. Doing this lowers the transportation and landfill costs, increasing your efficiency and productivity at the work site along with your sustainability credentials. Helping you to increase your sustainability ALLU enables you to recycle construction and demolition debris in an environmental way. Turning waste material into profit by producing aggregates and reusable materials such as bricks, concrete, metals, wood, cardboard, and bitumen. Bringing your waste to life!

Benefit

Increased the sustainability of the business, reducing costs and time yet increasing the business profits and efficiency.

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ALLU Transformer Screener Crusher Screening and Recycling Demolition Waste

Finland

Material Demolition waste

Industry Crushing, Screening, Waste material handling

Application Crushing

Function Crushing, Screening, Waste material handling

Model ALLU Transformer DN 3-17 screener crusher with TS 25 crushing Axe blade setup

Problem

On a site set aside for construction, demolition waste, including concrete, wood, metal and fines cannot be processed further, with the area needing to be cleaned and the material dealt with before any new buildings could be built. 

Solution

The waste was processed with an ALLU Transformer screener crusher. About 30% of the material could be reused as a construction material, with about 10%, including the wood and metal, being separated and recycled properly. The rest of the material comprised of concrete which was crushed and reused as sub base and for foundations.

Benefit

By processing the waste with the ALLU Transformer screener crusher, there were considerable savings made in landfill fees and transportation costs as only about 10% was transported to landfill. The rest of the material was reutilized on the new construction site.   TRANSFORMING YOUR GREEN CREDENTIALS.

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ALLU Transformer Screener Crusher Crushing Bricks

Finland

Material Defective bricks

Industry Crushing, Industrial Applications, Screening, Waste material handling

Application Crushing

Function Crushing, Screening, Waste material handling, Industrial applications

Model ALLU Transformer DH 4-17 screener crusher with X75 blades

Problem

A certain amount of waste and rejects is endemic in the production of bricks, requiring an effective solution for the recycling of any found to be defective.

Solution

The defective bricks were crushed with an ALLU Transformer screener crusher with the crushed material being reused in brick production.

Benefit

By processing the material with an ALLU Transformer screener crusher, any defective bricks can be reused in the production process. The ALLU Transformer screening bucket is a mobile solution, which in this instance replaced a large and ineffective stationary crusher on site.   TRANSFORMING YOUR MACHINES.

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Case study

ALLU Transformer Screener Crusher Separating Topsoil from Tree Stumps

Finland

Material Tree stumps, sawdust and topsoil

Industry Crushing, Industrial Applications, Recycling, Screening, Waste material handling

Application Crushing

Function Crushing, Screening, Recycling, Waste material handling, Industrial applications

Model ALLU Transformer DSB 2-12 screener crusher

Problem

Topsoil and sawdust needed to be separated from tree stumps so that both can be effectively recycled.

Solution

The tree stumps were screened with an ALLU Transformer screening bucket. This process separates the topsoil from the stumps making both materials reusable. In addition, the stumps are shredded with an ALLU Transformer screener crusher with the material turned into compost.

Benefit

The use of the ALLU Transformer screener crusher meant that all the materials can be reused, with the topsoil and saw dust being sold as valuable products, whilst the tree stumps were shredded for use as compost, thereby reducing both transport and landfill costs.   TRANSFORMING YOUR GREEN CREDENTIALS.

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Case study

ALLU Transformer Screener Crusher Shredding Insulation Wool

Finland

Material Waste stone wool

Industry Composting, Industrial Applications, Waste material handling

Application Composting

Function Composting, Waste material handling, Industrial applications

Model ALLU Transformer DN 3-17 screener crusher with TS16 Axe blades

Problem

The removal of contaminants in waste stone wool was proving to be problematic meaning that it could not be used in compost.

Solution

Stone wool used for insulation is an organic material as it is made from stones and naturally occurring materials. This means that it can be composted if processed correctly, being shredded with an ALLU Transformer screener crusher.

Benefit

The shredding process filters the glue and other waste materials from the wool meaning that there are no harmful contaminants left. The ALLU Transformer screening bucket is also able to work efficiently and is a fully mobile solution, ideal for working in limited spaces as found in this instance. The efficient working capabilities of the Transformer further adds to the green credentials of the mineral wool plant’s composting operation.   TRANSFORMING YOUR GREEN CREDENTIALS.

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Case study

ALLU Transformer Screener Crusher Screening and Mixing Construction Waste

Italy

Material Construction waste

Industry Crushing, Screening, Waste material handling

Application Crushing

Function Crushing, Screening, Waste material handling

Model ALLU Transformer DSB 2-17 screener crusher with TS25 blade setup

Problem

Construction waste comprising of concrete, metal and other construction materials requires processing before reuse. If left unprocessed, the material cannot be further utilized meaning that the contractor is subject to expensive transportation costs and landfill fees.

Solution

The material was processed with an ALLU Transformer screener crusher. The concrete was crushed and then recycled; the metal pieces were separated from the material and further recycled with the fines being used as fill and sub base.

Benefit

By processing the waste with an ALLU Transformer screener crusher, there wasn’t a need for expensive transportation costs and no landfill fees. The fines material was reused and all the materials were recycled correctly.   TRANSFORMING YOUR GREEN CREDENTIALS.

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ALLU Transformer screener crusher removing a non-native species in a nature reserve

Finland

Material Soil contaminated with invasive plants

Industry Screening, Soil processing, Waste material handling

Application Screening

Function Screening, Soil Processing, Waste material handling

Model ALLU Transformer DL 2-17 screening bucket with TS25 blade setup

Problem

Non-native species, which could destroy native fauna and flora, were found growing in a nature reserve. In order to keep the nature reserve intact and to preserve its biodiversity, the invasive plants had to be separated from the soil which would then be returned to the ground.

Solution

The surface layer of the earth was removed using a backhoe bucket, which removed the non-native species with their roots intact. The ALLU Transformer screening bucket was then used to screen the material and to separate the soil from the contaminants which was then reinserted into the ground and plant residue removed.

Benefit

The ALLU Transformer screening bucket was an effective solution for removing the non-native species, proving in a limited space to be a highly mobile space-saving solution.   TRANSFORMING YOUR GREEN CREDENTIALS.

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ALLU Screener Crusher Crushing Field Bark

Finland

Material Field bark from logs at a sawmill

Industry Crushing, Industrial Applications, Screening, Waste material handling

Application Crushing

Function Crushing, Screening, Waste material handling, Industrial applications

Model ALLU Transformer DS 4-23 screener crusher with crushing XHD blade setup

Problem

Field bark that has gathered at a sawmill’s field from processed logs has become a problem. If it is treated as waste the sawmill will be liable to both transport and landfill costs.

Solution

The material is fine screened with an ALLU Transformer screener crusher and then used at a local power plant. The quality is important, as if it is to be used as a power source, the material cannot include stones, metal or any other contaminants.

Benefit

An ALLU Transformer screener crusher bucket is a one-step process where the crushing of field bark and loading can be done simultaneously. When attached to a wheel loader for instance, both mobility and processing efficiency are maximized.   TRANSFORMING YOUR MACHINES.

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