Industry News
High-Efficiency Magnesium Hydroxide Grinding Solutions for Saudi Arabia's Chemical Industry
2026-01-20 10:56:01
We are Liming Heavy Industry, a manufacturer of various types of industrial crushers, such as Raymond Mill, Trapezoidal Mill, Vertical Mill, Ultrafine Mill, Ball Mill, etc.
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limestone, quicklime, kaolin, talc, barite, bentonite, calcium carbonate, dolomite, coal, gypsum, clay, carbon black, slag, cement raw materials, cement clinker, etc.
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Saudi Arabia is rapidly diversifying its industrial base under the Vision 2030 initiative, with a significant focus on specialty chemicals and advanced manufacturing. Magnesium hydroxide () has become a critical mineral in this shift, serving as an eco-friendly flame retardant, a wastewater treatment agent, and a precursor for pharmaceutical-grade magnesium compounds. To meet the stringent quality standards of the global chemical market, Saudi processors require grinding technology that ensures high purity and precise particle size distribution. Liming Heavy Industry's MTW European Type Trapezium Mill and LUM Ultrafine Vertical Roller Mill have become the benchmarks for excellence in the Kingdom's industrial sector.
The processing of magnesium hydroxide—whether derived from brucite ore or precipitated from brine—presents unique challenges. The material must be ground to a fine or ultra-fine state without metallic contamination or excessive heat buildup, which could alter its chemical properties. Liming's specialized grinding mills are engineered to address these specific regional and material requirements.
Advanced Grinding Technologies for Magnesium Hydroxide
1. MTW European Type Trapezium Mill: The Industrial Standard
The MTW series is the evolution of the traditional Raymond mill, specifically redesigned for the efficiency levels demanded by Saudi chemical plants. It is the ideal choice for producing industrial-grade magnesium hydroxide used in flue gas desulfurization and acidic wastewater neutralization.
Bevel Gear Integral Drive: Unlike traditional belt-driven mills, the MTW uses an integral bevel gear system, which provides higher transmission efficiency and reduces energy consumption in high-temperature environments.
Internal Thin-Oil Lubrication: To combat the extreme heat of the Saudi desert, the MTW features an internal oil pump that lubricates the main shaft and components without requiring a shutdown, ensuring 24/7 operational continuity.
Curved Non-Resistance Air Duct: This design reduces air resistance and turbulence, facilitating smoother material flow and more precise classification of the powder.
2. LUM Ultrafine Vertical Roller Mill: For High-End Chemical Applications
When the application requires magnesium hydroxide for flame retardants in plastics or cables, particle size must often reach the sub-micron or low-micron level. The LUM Ultrafine Vertical Roller Mill is Liming's premier solution for this high-value market.
Multi-Head Classifier: The LUM mill utilizes a specialized multi-wheel classification system. This allows operators to achieve a high fineness (up to 2500 mesh) while maintaining a narrow particle size distribution, which is critical for the mechanical properties of polymer composites.
Low Wear, High Purity: The grinding rollers do not come into direct contact with the table, significantly reducing metal-to-metal friction. When equipped with ceramic or specialized alloy liners, the LUM mill prevents iron contamination, preserving the white color and purity of the magnesium hydroxide.
Automated Control: Equipped with PLC systems, these mills allow for remote monitoring and precise adjustment of grinding pressure and air volume, fitting perfectly into the "Smart Factory" models being adopted in Jubail and Yanbu industrial cities.
Technical Comparison: Choosing the Right Mill for Your Saudi Project
The following table compares the two primary systems offered by Liming Heavy Industry to help Saudi investors select the most suitable equipment based on their production goals.
| Feature | MTW European Trapezium Mill | LUM Ultrafine Vertical Mill |
|---|---|---|
| Input Size | < 30 - 50 mm | < 10 mm |
| Final Fineness | 80 - 425 mesh (typical) | 400 - 2500 mesh (ultrafine) |
| Moisture Content | < 6% | < 3% (integrated drying available) |
| Primary Application | Wastewater treatment, general chemicals | Flame retardants, pharmaceuticals, fillers |
| Lubrication System | Thin-oil station | External forced lubrication |
| Automation Level | High (Standard Controls) | Advanced (Full PLC/DCS Integration) |
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Strategic Advantages for the Saudi Arabian Market
Operating industrial machinery in Saudi Arabia requires more than just a powerful motor; it requires a design that accounts for the local ecosystem. Liming Heavy Industry has optimized its magnesium hydroxide grinding lines for the Middle East through:
High-Temperature Resistance: All motors, bearings, and electronic components are rated for high ambient temperatures, ensuring the mill does not overheat during summer peaks.
Dust Control: Environmental protection is a key pillar of Saudi industrial regulations. Liming mills operate under negative pressure and are equipped with high-efficiency pulse bag filters that capture 99.9% of dust.
Scalability: From pilot plants for R&D to massive production facilities, Liming provides modular designs that can be expanded as market demand for magnesium-based products grows.
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Frequently Asked Questions (FAQ)
1. Can Liming mills grind both natural brucite and synthetic magnesium hydroxide?
Yes. The MTW and LUM mills are versatile enough to handle natural brucite ore (which is harder) and synthetic, precipitated magnesium hydroxide cakes. The grinding pressure can be adjusted to suit the specific hardness of the feed material.
2. How is iron contamination prevented in the grinding process?
For high-purity chemical applications, we provide specialized liners and grinding media, such as high-alumina ceramics or high-chromium alloys, along with magnetic separators at the discharge point to ensure the final powder meets pharmaceutical or electronic-grade specifications.
3. Does the mill include a drying function for wet filter cakes?
The LUM Ultrafine Vertical Mill can be equipped with a hot air furnace. This allows the mill to dry and grind the material simultaneously, which is highly efficient for processing magnesium hydroxide that has been precipitated from sea water or brine and still contains residual moisture.
4. What is the expected lifespan of the wear parts in a Saudi environment?
Due to the use of high-quality alloys, grinding rollers and rings typically last between 8,000 to 12,000 hours depending on the abrasiveness of the magnesium source. Liming maintains a stock of spare parts specifically for Middle Eastern clients to ensure rapid delivery.
5. Can these mills produce the D50 < 1.0 micron size required for some flame retardants?
The LUM Ultrafine Vertical Mill, when configured with a high-speed multi-wheel classifier, can achieve a D97 of 5 microns or smaller. For sub-micron requirements, the LUM mill is often used as the primary grinding stage followed by a specialized stirred mill.
6. Is technical support available locally in Saudi Arabia?
Liming provides comprehensive technical support, including site foundation planning, installation supervision, and operator training. We have extensive experience working with industrial partners in major hubs like Riyadh, Jeddah, and Dammam.
7. What are the power requirements for a 10-ton per hour magnesium hydroxide plant?
Power requirements vary by fineness. Generally, for a standard 325-mesh product, the MTW mill system consumes significantly less power per ton than traditional ball mills. A detailed power consumption analysis can be provided based on your specific capacity requirements.
8. Are the mills compliant with Saudi industrial safety standards?
Yes, all Liming equipment exported to Saudi Arabia meets international CE standards and can be configured to comply with SASO (Saudi Standards, Metrology and Quality Organization) requirements, including explosion-proof motors if required for specific chemical environments.
