
Dissolution and Mixing Techniques
Reliable processing of structurally complex substrates for a stable material flow and efficient feeding
Not every substrate can be conveyed directly. Fibrous, highly structured, or highly variable material compositions often lead to blockages, uneven feeding, and increased wear. Targeted disintegration and mixing technology homogenizes substrates and optimally prepares them for further conveying.
If substrates are not properly prepared, the material flow comes to a standstill
Inadequately prepared materials often lead to malfunctions, uneven feeding, and increased wear throughout the feeding system. These problems usually arise when substrates are not adequately prepared before feeding.
Substrates that are difficult to pump
Fibrous or textured materials block the flow of material
Blockages in the intake system
Downtime and manual interventions
Inconsistent substrate quality
Unstable fermenter feeding and fluctuating processes
Increased wear and tear
Unprocessed material puts a strain on the augers and components
Having trouble handling difficult-to-convey substrates? We're here to help.
Proper preparation is key to ensuring a steady material flow and optimal plant performance
Targeted dissolution and mixing homogenize the substrate structure—ensuring reliable further processing and smooth plant operation. An overview of our substrate preparation solutions.

PRÄZI Dissolving & Mixing Technology
| Sizes & Variants | • Various designs for different applications • Combination of dissolving, mixing, and conveying possible |
| System design | Customized to the substrate structure, throughput, and system design |
| Length ranges & models | • Standard and custom lengths depending on the installation situation • Customization for retrofits and new installations |
| Drive Technology | • Power range: approx. 1.5 kW to 15 kW • Various speeds depending on the application • Manufacturer: NORD / SEW |
| Materials & Wear Protection | • Stainless steel (V2A) for high corrosion resistance • Wear-optimized components • Optional: Hardfacing for extreme loads |
| System variants | • Left- and right-hand versions • Various geometries |
| System Integration | • Can be retrofitted into existing systems • Can be adapted to existing conveyor systems • Ideal for retrofit and optimization projects |
| Upgrades & Modifications | • Compatible with various mixer systems • Custom adaptations to existing systems |
Optimizing substrate preparation in a targeted manner
We analyze your equipment and show you how material flow, blockages, and wear can be sustainably improved through targeted dissolution and mixing.
Your expert in dissolution and mixing technology

FAQ
Here you will find answers to frequently asked questions.
Why is dissolution and mixing technology important in biogas plants?
Dissolving and mixing technology ensures that high-structure and fibrous substrates are homogenized. This stabilizes the material flow, reduces clogging, and makes downstream conveying significantly more reliable.
Which substrates require specific treatment before being transported?
Fibrous, coarse-textured, or highly variable substrates—such as grass, solid manure, or whole-plant silage (GPS)—benefit particularly from shredding and mixing technology. Without pre-treatment, blockages and uneven feeding often occur.
What problems arise if the substrate is not properly prepared?
Untreated substrates often lead to blockages in the feed system, inconsistent fermenter feeding, increased wear on the augers, and overall unstable plant operation.
Can dissolution and mixing technology be integrated into existing systems?
Yes, many systems can be retrofitted in a targeted manner and adapted to existing feeding technology. This allows for improvements in material flow, operational safety, and efficiency—without the need for a complete system overhaul.