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Lane Launches New De-icing Salt Granule Production Line

10-14 2025

author: Zero Shen

from: LANE Machinery Groups

De-icing salt are indispensable in winter road maintenance. An advanced deicing agent production line not only serves as the foundation for large-scale manufacturing but also plays a crucial role in enhancing product performance and reducing environmental impact.

Recently, Lane launched a de-icing salt granule production line centered on twin-roll extrusion granulation technology. This upgrade to core processes improves adaptability to diverse raw materials, enabling the production of high-quality de-icing salt granules.

De-icing Salt Granule Production Line

1. Overview of the De-icing Salt Granule Production Line: Efficient Integration of Automation and Intelligence

A complete de-icing salt granule production line constitutes a highly automated system engineering solution designed to transform powdered raw materials into high-strength, dust-free, uniform granules. Its standard process flow includes: raw material pretreatment → precise mixing → double roller extrusion granulation → grading and screening → finished product packaging.

The entire system seamlessly integrates six major modules—automatic batching, mixing, granulation, screening, packaging, and electrical control—enabling continuous operation from feedstock input to finished product. This ensures stable production efficiency and consistent product quality.

2. Core Process Analysis: Double Roller Extrusion Granulation Technology

The double roller granulator is the ‘heart’ of the de-icing salt granule production line. It employs a unique dry extrusion molding principle, eliminating the need for water or binders and requiring no subsequent drying.

Working Principle: Uniformly mixed dry powder feedstock is forcibly fed by a screw conveyor between two counter-rotating rollers. Under immense hydraulic pressure, the material undergoes plastic deformation and is extruded through die holes on the roller surfaces, forming dense flakes or flattened pellets. These flakes are then crushed, rounded, and screened to produce uniformly sized final granules.

De-icing Salt Granule Production Line

Process Advantages:

  • Energy-efficient and eco-friendly: Eliminates drying stages, reducing energy consumption; produces no wastewater or exhaust emissions throughout production.
  • Guaranteed purity: No introduction of external liquids ensures stable chemical composition of the final product.
  • High forming efficiency: Yields particles with high strength and bulk density, minimizing powdering during transport and storage while maintaining excellent flowability.

3. Raw Material Selection: Universal Production Across Formulations

LANE’s de-icing salt granule production lines offer flexible adaptation to diverse raw materials. By adjusting ingredient ratios, they produce products tailored to varying market demands.

Economical & Efficient Option – Chloride Salts

  • Sodium Chloride: Industrial salt is the most widely used and lowest-cost raw material, highly suitable for roller extrusion granulation and serving as the primary solid granule component.
  • Calcium Chloride: Exhibits excellent low-temperature performance (freezing point down to -50°C), often blended with sodium chloride to enhance effectiveness. Note its hygroscopic nature; environmental humidity must be controlled during production.
  • Magnesium Chloride: Offers intermediate performance and cost between the two, but exhibits extremely high hygroscopicity, demanding stringent storage and packaging requirements.

Environmentally Friendly Premium Type – Organic Salts

  • Potassium Acetate/Potassium Formate: Truly eco-friendly de-icing agents with minimal corrosivity, commonly used in critical areas like airports and bridges. However, due to high costs, they are primarily employed in liquid production lines.

Market Trend – Composite Formulations

The current market mainstream is composite de-icing agents. By scientifically blending the aforementioned chloride salts and adding functional additives like corrosion inhibitors and anti-caking agents, the following are achieved:

  • Performance Optimization: Balances de-icing speed and effective temperature range.
  • Reduced Corrosion: Corrosion inhibitors effectively protect roads, bridges, and vehicles.
  • Process Improvement: Anti-caking agents enhance granulation and storage stability.

De-icing Salt Granule Production Line and Raw Material Synergy: The double roller extrusion process imposes strict requirements on raw material moisture content (typically <5%) and particle size. Consequently, production lines are often equipped with drying, crushing, and high-efficiency mixing equipment at the front end to ensure stable and efficient formulation processing.

De-icing Salt Granule Production Line

4. Final Product: A Quantum Leap from Powder to Granules

The granular de-icing salt produced by this De-icing Salt Granule Production Line offers significant advantages over traditional powdered products:

  • Dust-Free and Eco-Friendly: Generates minimal dust during spreading, greatly improving the working environment for operators while reducing material waste and pollution to surrounding vegetation.
  • Precise and Uniform Application: Excellent flowability and uniform particle shape enable precise, even distribution via mechanical spreaders, preventing over- or under-application.
  • Controlled-Release and Slow-Dissolution: Granular formulations regulate dissolution rates on surfaces, extending effective duration and enhancing utilization efficiency.
  • Convenient Storage and Transportation: Resistant to moisture absorption and caking, with high bulk density, these granules save substantial storage space and reduce shipping costs.

Ready to launch your de-icing salt granule production project?

Modern de-icing salt granule production lines, especially those centered on twin-roll extrusion granulation technology, are no longer mere processing equipment. They represent integrated solutions that blend mechanical engineering, materials science, and environmental sustainability.

By transforming inexpensive, dust-prone powdered raw materials into efficient, eco-friendly, high-value granular products, it not only generates significant economic returns for investors but also provides robust technical support for advancing winter road safety maintenance toward greater efficiency, environmental sustainability, and intelligent operation.

Contact us for 2D/3D designs & quotes on de-icing salt granule production lines!

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De-icing Salt Granule Production Line

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