In the food processing industry, maintaining impeccable cleanliness of filling machines is essential. During production cycles, particularly when rinsing waterpasses through, it is common to see limestone and scale depositsappear. These deposits can disrupt the quality of the finished product and complicate equipment maintenance. Today, cryogenic cleaning is establishing itself as a particularly effective method forscale removal. This process appeals for its speed, its non-abrasive and because it offers an eco-friendly alternative to conventional industrial cleaning.
Why does scale form on food processing filling machines?
The repetition of rinsing operations with waternecessary to guarantee food safety, paradoxically constitutes a major factor in the appearance of scale and limestone on the internal and external surfaces of machines. As water evaporates or simply remains stagnant, it leaves behind mineral residues that accumulate in the form of hard deposits.
This effect is even more pronounced in regions where the water used has a high content of calcium and magnesium. Thus, each rinsing cycle progressively contributes to the deposit of successive layers, making descaling mandatory at regular intervals to maintain performance and hygiene in the industrial environment.
How does dry ice blasting work for scale removal?
Le cryogenic cleaning relies on the projection of dry ice (solid CO2) directly onto the surfaces to be treated. This innovative method makes it possible to effectively remove tartar without altering or wearing sensitive materials, unlike traditional mechanical processes that can sometimes be too aggressive. To learn more about this professional technique, it is possible to consult specialized resources dedicated to cryogenic cleaning.
The action of CO2 operates according to two major effects: first, the thermal shock caused by extremely cold dry ice weakens the scale deposit and causes it to crack. Next, the mechanical blast generated by the compressed air amplifies this phenomenon, enabling therapid elimination of residueseven in hard-to-reach areas.
Typical stages of dry ice blasting
Performing industrial cleaning with dry ice follows a precise protocol to optimize each intervention on a food processing filling machine. Here is generally how an operation proceeds:
- Preparation of the surface to be cleaned (shutting down power if necessary)
- Loading the solid CO2 projection machine
- Adjustment of pressure and flow according to the level of contamination
- Application of the jet to the scaled areas
- Visual inspection and post-operation check
This method completely excludes the use of chemical productswhich significantly limits any reintroduction of pollution into the food production chain.
Practical advantages of dry ice blasting
Choosing CO2 projection for scale removal offers a range of benefits that go well beyond the simple aesthetics of installations. Many professionals particularly appreciate the speed of execution of the process as well as the significant reduction in machine downtime. This promotes better profitability of production lines.
Furthermore, there is no secondary residues to manage, unlike other techniques requiring chemical baths or solvents, whose disposal requires a rigorous procedure. The absence of dust or polluting effluents perfectly addresses the issues of eco-friendly cleaning and sustainability in the food processing sector.
What are other applications of dry ice blasting in industry?
While it excels at combating tartar, cryogenic cleaning also applies to theremoval of multiple residues that regularly appear on industrial machinery. It will be effective against stubborn greasesticky food oils, or even certain adhesives or dust from packaging.
Here are some concrete examples where Carbon dioxide ice proves its full relevance:
- Descaling of tanks, pumps and valves after intensive use.
- Stripping of metal surfaces soiled by grease or operational oils.
- Cleaning of conveyors and accessories exposed to dust or labeling adhesive.
Comparison with other industrial stripping methods
To visualize the strengths of cryogenic cleaning against conventional techniques, one can use a comparative table. This synthetic presentation helps identify the type of contaminants eliminated and compatibility with different materials.
| capacity | Dry ice blasting | Chemical cleaning | Mechanical brushing |
|---|---|---|---|
| Materials eliminated | Scale, limestone, grease, oil, adhesive, dust | Scale, grease (depending on solvent used) | Scale, limestonecertain hard deposits |
| Aggressiveness on supports | Non-abrasive process | Potentially damaging certain materials | Possible abrasion on delicate surfaces |
| Environmental impact | Eco-friendly / no liquid discharge | Wastewater and toxic discharge | Production of dust and shavings |
| Time to restore service | Fast, no drying step | Drying / decontamination after treatment | Often requires manual finishing |
This table highlights why dry ice blastingadapts perfectly to the specific requirements of food processing companies.
FAQ on dry ice blasting of scale in food processing
Is dry ice blasting really suitable for all types of filling machines?
Yes, the majority of food processing filling machines work very well with this process, as dry ice projection causes no mechanical wear or alteration of sensitive components. However, pressure and settings should be adjusted according to the technical configuration to preserve delicate elements.
This process applies equally well to surfaces in stainless steeltechnical plastic or aluminum, as long as the operator assesses the material specifications in advance to guarantee optimal and safe scale removal.
Do you need to completely stop production to perform dry ice blasting scale removal?
Le cryogenic cleaning does require the momentary shutdown of the targeted machine. However, the intervention is much shorter than that of conventional processes thanks to the absence of additional rinsing or drying phases. Restart is thus significantly accelerated.
Smart planning of these operations thus makes it possible to maximize the limitation of productivity losses on the line.
What environmental benefits does industrial cleaning with dry ice provide?
This process uses only recycled CO2generates no liquid effluent and does not release solvents or chemical waste into the environment. After application, dry ice sublimates naturally without leaving any contamination.
Here are some environmental benefits:
- No additional water consumption
- Zero toxic emissions in air or wastewater
- Reduced health risks for operators
Can dry ice blasting be combined with other methods to optimize removal of stubborn residues?
Absolutely, it sometimes happens that certain deposits combine scale, thick grease or complex organic residues. CO2 projection can then precede or complete gentle mechanical treatment or manual finishing.
A combination often seen in food processing groups dry ice blastingfollowed by inspection and targeted rework on remaining areas. This combination maximizes total effectiveness while maintaining an excellent level of eco-design in the approach.
Discover our dry ice blasting solutions: equipment, services and training by contacting us at +33 (0) 4 81 61 02 75 or by filling out the form below
