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What is The Application of Diatomite and Diatomite Grinding Mill?

Date:2023-08-29 13:36:11    From:    Click:
Diatomite, also known as kieselguhr, is a distinctive sedimentary rock of significant importance across various industries. It primarily consists of the fossilized remains of microscopic aquatic plants called diatoms, which flourished in freshwater and marine environments millions of years ago. The distribution of diatomaceous earth spans several countries including China, the United States, Japan, Denmark, France, Romania and others. Each region possesses unique geological formations and characteristics that contribute to the quality and properties of the diatomaceous earth found there.
From a chemical perspective, diatomaceous earth mainly comprises silicon dioxide (SiO2), represented by SiO2·nH2O. This composition grants it exceptional absorbent qualities and renders it highly valuable for diverse applications. The mineral composition predominantly encompasses opal and its variants. Due to its porous nature and high silica content, diatomaceous earth finds extensive utilization in filtration systems for water purification purposes as its intricate structure effectively entraps impurities such as bacteria, algae or debris particles from liquids or gases passing through it.


About Diatomite


Diatomite, typically light yellow or gray in color, is a soft and porous material widely utilized in various industries as insulation materials, filter media, fillers, abrasives, water glass raw materials, decolorizing agents, diatomite filter aids and catalyst carriers. The unique microporous structure of natural diatomite can be observed under a microscope and is responsible for its distinctive physical and chemical properties.

Raw Ore Property

Diatomite typically contains a small amount of Al2O3, Fe2O3, CaO, MgO, K2O, Na2O, P2O5 and organic matter. SiO2 usually accounts for more than 80%, reaching up to 94%. The iron oxide content in high-quality diatomite generally ranges from 1% to 1.5%, while the alumina content ranges from 3% to 6%. The mineral composition of diatomite primarily consists of opal and its varieties, followed by clay minerals such as hydromica and kaolinite. Mineral detritus includes quartz, feldspar, biotite and organic matter. Organic content varies from trace amounts to over 30%. Diatomite exhibits colors ranging from white to grayish white or gray with light grayish brown tones. It possesses properties such as delicacy, looseness, lightweightness porosity water absorption and strong permeability. Most of the silica in diatomite is amorphous with soluble silicic acid content ranging from 50% to 80% in the base material. Amorphous SiO2 crystallizes when heated between temperatures of 800°C and 1000°C while reducing the soluble silicic acid content in the base material to around 20-30%.

Physical Property

The density of diatomite ranges from 1.9 to 2.3 g/cm3, with a bulk density ranging from 0.34 to 0.65 g/cm3. It possesses a specific surface area of 40-65㎡/g and a pore volume of 0.45-0.98 cm³/g, enabling it to absorb water up to two to four times its own volume. Additionally, it exhibits a unique porous structure that can be observed under an electron microscope and has a melting point between 1650℃ and 1750 ℃.

Application of Diatomite


For Soil Improvement

The pH value of the substance is neutral, indicating that it is neither acidic nor alkaline. This characteristic makes it non-toxic and safe to use in various applications.
When used in agricultural machinery pipelines, this substance demonstrates excellent mixing uniformity without causing blockages. This ensures smooth flow throughout the system and prevents any disruptions during operations. In soil applications, this substance plays a crucial role in enhancing moisture retention within the soil matrix. By retaining moisture effectively, it helps plants access water for longer periods between irrigation cycles. Additionally, by improving soil structure through increased porosity and aggregation of particles, this substance promotes better root development and nutrient uptake by plants. Moreover, when applied alongside fertilizers or nutrients in agriculture practices, this substance extends their efficacy by preventing leaching or runoff into groundwater sources. It acts as a carrier for these essential elements while slowly releasing them over time for plant utilization.


For Paper Making

It boasts excellent extensibility, high impact strength, tensile strength, tear strength, light and soft internal abrasion resistance, good compression strength, and other high-quality features. In the paper industry, it is used for office paper, industrial paper, and other types of paper. Diatomite has advantages such as a lightweight and fine body with fineness ranging from 120 mesh to 1200 mesh. Adding diatomite can make the paper smooth and lightweight while improving its strength. It also reduces expansion caused by humidity changes and can adjust the burning rate in cigarette papers without any toxic side effects. In filter papers, it improves filtrate clarification and speeds up filtration.


For Animal Feed

The fineness of diatomaceous earth feed ranges from 120 mesh to 1200 mesh, exhibiting a light and delicate texture. It finds application in the feed industry for various animals including pigs, chickens, ducks, geese, fish, birds, and aquatic species. Diatomaceous earth feed offers numerous advantages: it possesses a neutral pH value and is non-toxic; the unique pore structure of diatomite mineral powder renders it lightweight and soft; it exhibits high porosity and strong adsorption capabilities. Upon addition to feed, it forms a light and softly colored mixture that disperses evenly without separation. It aids digestion in livestock and poultry by absorbing bacteria from their gastrointestinal tracts while also promoting physical fitness through the strengthening of tendons and bones. In fish ponds, diatomaceous earth enhances water quality by providing clarity with good permeability which ultimately leads to increased survival rates of aquatic products.

Diatomite Mill Grinding Recommended


YGM Raymond Mill

Capacity: 1-50 t/h
Feed Size: 35 mm
Powder Fineness: 80-325 mesh

Mill Advantages
  1. 1. The new structural design of the Raymond mill enhances durability by extending the lifespan of its components, such as the grinding roller and grinding ring. This not only reduces maintenance costs but also eliminates the inconvenience of frequently replacing parts that is commonly associated with centrifugal grinders.
  1. 2. The PLC electrical automation control system in the Raymond mill improves operational efficiency by minimizing manual intervention and reducing human error. This leads to enhanced productivity and lower labor costs, making it an ideal choice for businesses seeking to optimize their operations.
  1. 3. The space-saving design of the Raymond mill enables easy installation even in small spaces. Its reduced area requirement facilitates transportation and simplifies setup procedures, ultimately saving time and effort for operators.
  1. 4. The Raymond mill is a cost-effective solution due to its high yield capabilities and long-lasting key components like grinding rollers and rings. It offers reliable performance, ensuring consistent product quality while reducing downtime caused by maintenance or part replacements.

HGM Ultrafine Grinding Mill

Capacity: 0.2-45 t/h
Feed Size: ≤20 mm
Powder Fineness: 325-3000 mesh

Mill Advantages
  1. 1. Our mill's yield surpasses that of other mills by 40%, indicating a significantly higher production capacity compared to its counterparts. This not only enhances productivity but also optimizes resource utilization, leading to greater efficiency.
  1. 2. Our mill boasts exceptional wear material utilization with a lifespan ranging from 2 to 5 years, ensuring uninterrupted operation without frequent replacement or maintenance requirements. This durability saves users valuable time and costs.
  1. 3. One key advantage of our mill lies in its adjustable particle size capability, spanning from 325 to 3000 mesh. This flexibility empowers users to tailor their product specifications according to specific requirements or market demands.
  1. 4. Safety and reliability are paramount considerations in the design of our mill, adhering rigorously to engineering standards that eliminate potential risks such as screw loosening during operation which could damage the machine. Users can trust in the stability and longevity of our equipment.
  1. 5. In addition to its technical features, our mill operates within a closed system, making it an environmentally friendly choice for production processes by minimizing emissions and preventing pollution leakage. It aligns seamlessly with green initiatives while contributing positively towards environmental protection efforts.
Clirik  is a reputable manufacturer of mining machinery and equipment, renowned for their global popularity. If you have any interest in our top-notch equipment, please feel free to contact us using the information provided on this page. Moreover, we boast a team of highly skilled engineers and technicians who are capable of tailoring machinery and equipment to meet your specific requirements, ensuring that they perfectly suit your needs. We eagerly await your call!