Vertical roller mill

High-quality ultra fine powder vertical roller mill manufacturer

Tongli Ultrafine Powder Vertical Mill is particularly suitable for ultrafine grinding of non-metallic minerals, including ultrafine calcium carbonate powder (fineness can reach 2-5 microns), limestone, barite, calcite, kaolin, gypsum, bauxite and graphite. Its production capacity can reach 10-30 tons per hour to meet the production needs of different scales. Through ultrafine grinding, the equipment can provide high-quality fillers and additives for industries such as papermaking, plastics, coatings, rubber inks and chemicals. Tongli Ultrafine Powder Vertical Mill has mature and stable technology and excellent grinding performance.

ultra fine powder grinding vertical roller mill profile picture1 by tongli heavy machinery

TONGLIVRM

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Ultrafine powder vertical mill has finely adjusted grinding disc and grinding roller design, which is suitable for grinding ultrafine powder materials. Its efficient grading system and precise material handling ability are widely used in chemical, mining and new materials industries to produce high-quality ultrafine powders.

Precision powder selection technology:

The ultrafine vertical mill has a built-in classifier with highly accurate fineness control function. It consists of 8 high-power fans and is particularly suitable for industry applications that require precise particle size distribution, such as high-end coatings and pharmaceutical industries. Through the adjustable classifying rotor, the fineness fluctuation range of the powder is less than 1 micron, ensuring the quality stability of the finished particles.

Strong adaptability:

Strong adaptability to non-metallic minerals: Tongli Ultrafine Powder Vertical Mill has designed special grinding solutions for different types of non-metallic minerals. For example, for materials with strong viscosity such as kaolin, talc, and graphite, the equipment is equipped with a unique anti-adhesion system to prevent the materials from agglomerating during the grinding process, thereby maintaining stable grinding efficiency.

Shock absorption system:

Tongli Ultrafine Powder Vertical Mill uses a new double-layer vibration isolation base design, with a vibration reduction of up to 15%, and with advanced fan noise control technology, the operating noise is reduced to below 85 decibels, which is particularly suitable for production environments with strict noise control requirements, such as urban industrial parks.

Specification≤ 2μm = 30% (t/d)≤ 2μm = 45% (t/d)≤ 2μm = 60% (t/d)Main Unit Power (kW)Blower Power (kW)ClassifierClassifier Power (kW)
ZJTL15009-125.5-7.53-4220-250180-20066 x 15
ZJTL165012-167-94-5.5315-355250-28066 x 22
ZJTL180014-1810-127-9355-410325-35588 x 22

FAQ

1. What are the advantages of Tongli ultrafine vertical mill?

ZJTL ultrafine vertical mill integrates five processes of crushing, grinding, grading, drying and conveying into one device, which greatly simplifies the process flow. Secondly, the equipment layout is compact, occupies a small area, and has excellent sealing performance. The internal oxygen content of the vertical mill is low, and it has excellent explosion-proof performance. The ultrafine vertical mill is equipped with a high-efficiency pulse dust collector with a dust removal efficiency of up to 90%.

2. How to improve the grinding efficiency of the vertical mill?

The structural design, scraper, hydraulic system, material characteristics and pressure difference of the equipment will affect the grinding efficiency. Tongli will formulate corresponding parameters according to the hardness, composition, viscosity, humidity and particle size of the grinding material. However, in actual operation, the owner should ensure that the feed is uniform and stable, reasonably control the grading efficiency, regularly check and maintain the wear parts, hydraulic system and other equipment, and keep them in good operating condition.

3. How can the ultrafine vertical mill achieve 24-hour continuous production?

The roller bearings and reducers of ZJTL ultrafine vertical mill adopt a stable and reliable thin oil lubrication system, which can support 24-hour uninterrupted production of the equipment. Thin oil lubrication can not only effectively reduce wear, but also simplify the complexity of equipment maintenance, reduce maintenance frequency, and thus extend the continuous working time of the equipment.

4. How does the ultrafine vertical mill achieve low energy consumption?

The ultrafine vertical mill uses a unique grinding method that the roller and the grinding disc do not directly contact during the working process, which prolongs the service life of the roller and the liner, and reduces the friction loss during the production process, thereby reducing energy consumption and production costs. The ultrafine vertical mill adopts a special grinding curve design for different materials, which reduces the residence time of the material in the mill and avoids repeated grinding.

5. What is the difference between the ultrafine grinding mill and the ordinary vertical mill?

The ultrafine powder vertical mill is designed for the production of ultrafine powders and can grind the material to a smaller particle size, usually reaching ultrafine particles below 2 microns. This makes the ultrafine powder mill have a clear advantage in industries that need to produce extremely fine materials, such as papermaking, coatings, plastics and chemical industries, which require high-quality ultrafine fillers and additives. In contrast, ordinary vertical mills are mainly used to grind coarse particles of materials, and the powder particles produced are usually around 20 to 50 microns, which are suitable for traditional industrial applications such as cement and coal powder. Although ordinary vertical mills have good grinding efficiency, they are not as effective as specially designed ultrafine powder mills in processing ultrafine materials.

6. What is the structural difference between ultrafine grinding mills and ordinary vertical mills?

The design of the grinding roller and grinding disc of ordinary vertical mills is relatively simple, and they are mainly used to process coarse particles. The gap between the grinding roller and the grinding disc is larger, which is more suitable for grinding coarse particles such as cement raw materials.

Ordinary vertical mills usually use single-stage classifiers, which are mainly used to separate larger particles of materials, so they are not as good as ultrafine grinding classifiers in terms of fineness control.

In terms of grinding pressure, the pressure level of ordinary vertical mills is relatively low, which is suitable for general grinding processes, and the hydraulic system is relatively simple. The longer residence time of the material in the mill helps to fully crush the coarse particles, but this also limits its application in the field of ultrafine grinding. The discharge system of ordinary vertical mills is relatively simple and is suitable for discharging coarse particles. In terms of wear-resistant materials and liner design, the selection of ordinary vertical mills is relatively standardized, which is sufficient to meet the wear-resistant requirements of conventional grinding.

Ultrafine grinding is different. Its grinding roller and grinding disc design have a special surface structure that can effectively reduce the retention time of materials and prevent repeated grinding. The grinding roller design is more refined and suitable for handling smaller particles to ensure that the ultrafine particles discharged are evenly distributed.

Ultrafine grinding is equipped with an efficient multi-stage grading system that can accurately control the fineness of the finished particles to ensure that the particles reach the micron level. The grinding pressure is usually high, which requires a more powerful hydraulic system to provide stable high pressure to achieve ultrafine grinding. The material path design is more complex, aiming to reduce the residence time of the material in the mill, prevent over-grinding, and ensure the uniformity and stability of the product particles.

The discharge system is precisely designed to discharge ultrafine powder in time to avoid material retention. In order to meet the high precision requirements of ultrafine grinding, grinding rollers and liners are usually made of higher performance wear-resistant materials to extend equipment life and reduce wear.

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APPLICATION

Barite

Barite

Baryte is a high-density mineral widely used in oil drilling and filling. Its ultrafine powder can improve fluidity and dispersibility, and is suitable for coating and plastic industries.

Kaolin

Kaolin

Kaolin is a high-quality ceramic raw material. After ultrafine grinding, it can improve its application performance in ceramics and coatings and improve the smoothness and fineness of the product.

Bentonite

Bentonite

Bentonite is a high-performance clay mineral. After ultrafine grinding, it can be used in casting, oil drilling and environmental protection materials to improve its adsorption and adhesion.

Quartz sand

Quartz sand

Quartz sand is an important industrial raw material. Ultrafine ground quartz powder is widely used in glass, ceramics and building materials to improve the strength and transparency of products.

Calcium powder

Calcium powder

Heavy calcium powder is used in filling and coating materials to improve the gloss and whiteness of products. Ultrafine powder can improve its fluidity and enhance its application in plastics and coatings.

Potassium feldspar

Potassium feldspar

Potassium feldspar is a commonly used ceramic raw material. Ultrafine grinding can improve its formability and strength in ceramic products and improve the quality of the final product.

Calcium carbonate

Calcium carbonate

Calcium carbonate is widely used in plastics, coatings and food industries. Ultrafine calcium carbonate can improve the fluidity and filling performance of products and is an important industrial filler.

Talc

Talc

Talc has good lubricity and anti-adhesion properties and is often used in cosmetics, plastics and rubber products. Ultrafine grinding can enhance its whiteness and fineness.

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