Plant engineering and processing technology for soil processing - Stones and soils
Mineral raw materials are at the beginning of the value chain - currently around 90% go to the construction industry. Sustainable raw material extraction has the following framework conditions:
- Using existing, finite resources as efficiently as possible
- The duration of a permit to expand the area of a quarry extends over many years
- The duration of the already approved quarry area must be extended
- Existing spoil heaps contain valuable raw materials and block or take up space within the quarry
The all-rounder SPLITTER in use:
The actors
- Operators of quarries (raw material suppliers)
- Disposers of mineral construction waste
- Earthworks and civil engineering companies
- Deconstruction companies
- Top spoil (mixture of roots, soil, clay and stones)
- Contaminated excavated soil
The challenge
- Classic screens (usually 3 fractions) work well with dry material without impurities (rootstocks, reinforcing bars, loam/clay, cohesive and loose materials)
- Depending on the nature of the material (wet, impurities), screen gaps become clogged > manual cleaning necessary
Reconditioning with the SPLITTER TWIN WAVE
- Mixture of earth, clay and stones (dry, moist and wet condition)
- Grain size up to approx. 400 mm
- Screening cut approx. 50 / 80 mm
- Output
- Clean oversize grain for further processing
- Undersize from clay, earth and stones < 50 mm
- Thanks to its unique screen deck shape, the SPLITTER TWIN WAVE enables ideal processing - without the consistency of the material affecting the screening result.
- The clay, which is more like plasticine in its consistency, is peeled off by the spiral waves and repeatedly deformed and separated by the dynamics of the stones on the screen deck.
- The trough-shaped screen deck collects the material via the counter-rotating spiral shafts. The operator can influence the dwell time on the screen deck via the individual inclination adjustment.
Practical examples for the efficient separation of stones and soils
Sieving topsoil, clay and stones with the SPLITTER H3
The aim here is to break down the material, a previously unusable mixture of materials, into 3 fractions. The impurities (oversized particles) are to be separated so that the topsoil can be reused
Feed material: Loamy soil with impurities (sticks and stones)
Target material: Topsoil free of sticks and stones
Processing of excavated soil and loamy material
The mobile SPLITTER X2 is used by Max Wild GmbH to process excavated soil and loamy material.
The robust tracked vehicle is designed for uneven ground. With its stable and robust SPLITTER TWIN WAVE screen deck, the SPLITTER X2 is perfect for this heavy and sticky material. The flexible adjustment options of the SPLITTER X2 ensure reliable material flow throughout the entire process.
The use of modern motor technology delivers a throughput rate of up to 200 t/h.
Practical use of contaminated soil
The aim here is to break down the material, a previously unusable mixture of materials, into 2 fractions. The usable rock (oversize grain) is made available for further processing and the undersize grain, a mixture of stone and earth, can be deposited.
Feed material: Clay/earth mixture with a grain size of up to 400 mm
Target material: Stones with a grain size greater than 100 mm
The SPLITTER as a solution
- Consistency of the material (dry, wet, with or without impurities) has no influence on the screening result
- Can also be used with untreated material
- Inclination adjustment allows you to react to different material properties
- Machine running time/availability multiplied through year-round use
- Self-cleaning system due to an active screen gap
- Separation by type reduces space requirements, e.g. within quarries > Conservation of resources/optimized raw material yield
- Pre-separation/dosing for subsequent processes
Practical application example - Upper soil
The aim here is to break down the material from a spoil tip, a previously unusable mixture of materials, into 2 fractions. The usable rock (oversize grain) is made available for further processing and the undersize grain (smaller than 50 / 80 mm), a mixture of stone and earth, can be deposited.
Feed material: Stockpile material with a grain size of up to 400 mm / oversized material is separated via the grid
Target material: Stones / unmixed oversize grain with a grain size of 80 / 400 mm
Task definition
- Separate material from a spoil tip, i.e. previously useless and space-consuming material, into 2 fractions
- Separate usable rock (oversize) for further processing from soil, clay and stone mixture (undersize < 50 / 80 mm)
Conditions on site
- In dry condition and after approx. 120 l/sqm of rain within 2 days
- The system was loaded using a 40 t crawler excavator
Advantages of reconditioning with the SPLITTER TWIN WAVE
- Constant screening performance due to active screen gap
- Self-cleaning screen system
- Problem-free processing even with impurities
- Can also be used with non-pretreated material
- Interchangeable screen deck for different grain sizes
- 100 % diesel-electric, low diesel consumption
- Low drive power
Conclusion
- Throughput 150-300 t/h (depending on material properties and consistency)
- According to the material distribution of the weighing slip, this results in an additional raw material extraction of approx. 75%
- The stockpile volume within the quarry is significantly reduced to only approx. ¼ of the previous space requirement/volume
SPLITTER TWIN WAVE
Thanks to its unique screen deck shape, the SPLITTER TWIN WAVE enables the processing of heavy and sticky material with an impurity content (e.g. clay and stone mixtures).
SPLITTER X2
The track-mounted SPLITTER X2 with its robust SPLITTER TWIN WAVE screening deck is the expert for heavy, sticky and partly unshredded material (stones, clay, contaminated soil for landfill).
SPLITTER H3
The SPLITTER H3 hook-lift mobile 3-fraction special separator combines the latest technology with tried-and-tested technology in one machine. It is the expert for heavy and sticky materials in the tightest of spaces.
Your contact person
Andreas Nitzsche
Sales and partner management
+49 (0) 66 41 / 96 54-802 +49 (0) 160 / 884 444 6 a.nitzsche(at)albg.euFAQs about stones and soils
The stones and soils category includes various non-metallic, mineral raw materials that are primarily used in the construction industry, in the extraction of raw materials and in soil preparation. In particular, this includes gravel, sand, natural stone, limestone, dolomite, clay and loam. These materials are often generated during construction projects, excavation or demolition work and can be efficiently sorted, processed and reused with the appropriate technology.
Raw materials from the “stones and soils” group, such as excavated soil, sand, gravel or construction waste, generally have to be processed before they can be recycled or further processed. The aim of processing is to remove unwanted components such as foreign matter, organic impurities or coarse materials and to improve the material quality. Depending on the application, mechanical or thermal processes are used. The processed materials can then be reused, for example, in road or landfill construction, in the construction industry or in gardening and landscaping.
Processed stone and soil are used in various sectors - above all in the building materials industry. There they are used to produce concrete, cement and other building materials. They are also used in the glass and chemical industries, in gardening and landscaping and in agriculture. The recycling of mineral raw materials makes a significant contribution to the conservation of resources and sustainability in the construction industry.
Anlagenbau Günther GmbH offers specialized machines and complete solutions for the efficient processing of mineral materials such as stone, earth and excavated soil. With high-performance dosing, screening and conveying systems as well as integrated NE/FE separators, the company enables precise sorting, separation and classification of materials directly on site. The systems are modular, flexibly adaptable and designed for sustainable, economical further processing - ideal for building yards, landfill operations and companies in civil engineering or earthworks.
The SPLITTER from Anlagenbau Günther plays a central role in the processing of mineral building rubble, excavated soil, stones and earth. The delivered material is efficiently separated according to grain size: fines such as soil or sand are discharged directly for further processing. Larger components such as stones or rock fragments are sent to the next process step with the oversized particles. There, they can be further crushed depending on their intended use and then classified again by the SPLITTER - for precise and economical material separation.
Yes, the SPLITTER in the TWIN WAVE design is designed precisely for this demanding application. This special screen deck is not flat, but curved upwards at the sides. As a result, the stones are automatically freed from adhering clay and soil material as they roll over the deck - without any additional cleaning mechanism. For particularly difficult material, efficiency can be further improved by adjusting the angle of inclination. This makes the SPLITTER an ideal solution for processing excavated soil, clayey soil and mixed stone/soil fractions.
Yes, the use of conveyor technology is essential in the processing of stone, earth and excavated soil. After each process step - whether screening, crushing or sorting - the material must be transported efficiently to the next processing unit. High-performance conveyor belts are used here to ensure a continuous flow of material and thus ensure smooth operation. Anlagenbau Günther supplies robust conveyor technology that has been specially developed for demanding applications in the processing of building materials.
No, in principle, stone and soil can also be processed using stationary plants. In practice, however, mobile plant technology is often used, as transporting the heavy material is cost-intensive. In many cases, mobile processing directly at the excavation site is more economical and logistically sensible - especially for large quantities of excavated soil, building rubble or mineral material.