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How is the ultrafine grinding mill used in pyrophyllite processing?

Date:2021-01-12 14:23:37    From:    Click:
Pyrophyllite is generally white, slightly yellowish or light green, with white streaks, ranging from glass luster, pearl luster, waxy luster to dull, soft and slippery.

Pyrophyllite synthesis method

The beneficiation of pyrophyllite is still dominated by hand selection. Pyrophyllite has many uses, and different industrial sectors have requirements for pyrophyllite. For example, the hand-selected ore can be directly used for refractory materials, ceramics, cement, etc. However, for the ultrafine pyrophyllite powder with a fineness of less than 5μm used in papermaking and other industries with higher requirements, in addition to the aforementioned coarse crushing, medium crushing, fine crushing and grinding, the fine waxstone powder must be ultrafine grinding equipment for fine grinding. Or the aforementioned ground powder is sorted by hydrocyclone and other equipment, dehydrated, filtered and dried.

Pyrophyllite ultrafine grinding equipment-HGM ultrafine grinding mill

HGM ultrafine grinding mill is mainly suitable for processing ultrafine powder of non-flammable and explosive brittle materials with medium and low hardness, Mohs hardness ≤6, such as calcite, chalk, limestone, dolomite, carbon black, kaolin, Bentonite, talc, mica, magnesite, illite, pyrophyllite, vermiculite, sepiolite, attapulgite, rectorite, diatomaceous earth, barite, gypsum, alunite, graphite, fluorite, phosphate rock There are more than 100 kinds of materials such as stone, potash ore and pumice. The granularity of the fine powder can be adjusted between 325-3000 mesh, and the output can reach 0.4-4.5 tons per hour.
The mill production line usually includes hammer crusher, bucket elevator, storage bin, vibrating feeder, micro-powder mill host, frequency conversion classifier, double cyclone powder collector, pulse dust removal system, high pressure fan, air compressor , Electrical control system, etc. The bulk material is crushed by the hammer crusher into the feed size (about 1cm) suitable for the work of the ultra-fine mill, and then the speed of the mill analyzer is adjusted to achieve the fineness suitable for the production requirements, and the bags are manually packed into bags , Can also be equipped with automatic micro powder packing machine and choose different types of milling machines according to needs.

Performance characteristics of HGM ultrafine grinding mill

advantages of HGM ultrafine grinding mill
1. High efficiency and energy saving: Under the condition of the same fineness of the finished product and the same motor power, the output is more than times higher than that of jet mill, stirring mill and ball mill.

2. Long service life of wearing parts: the grinding roller and grinding ring are forged with special materials, which greatly improves the utilization. In the case of the same fineness of the materials and finished products, the service life of the wear parts of the impact crusher and turbo crusher is 2-5 times longer, generally up to more than years. When processing calcium carbonate and calcite, the service life can reach 2 5 years.

3. High safety and reliability: Because there are no rolling bearings and no screws in the grinding cavity, there is no problem that the bearings and their seals are easily damaged, and there is no problem that the screws are easy to loosen and damage the machine.

4. High product fineness: The fineness of three-ring medium-speed ultra-fine grinding products can reach D97≤5μm.

5. Environmental protection and cleanness: The pulse dust collector is used to capture dust, and the muffler is used to reduce noise, which is environmentally friendly and clean.

Main uses of pyrophyllite


Pyrophyllite contains silicon dioxide and aluminum oxide, does not melt when heated, and is a raw material for the manufacture of aluminum silicate refractories. Due to the wide range of refractory materials, it is necessary to add some other characteristic minerals to pyrophyllite mineral materials to form new refractory materials; if mullite mineral materials are added, the product can improve the impact strength, density and resistance of the product. Heat resistance, refractoriness, corrosion resistance and slag resistance; zircon mineral is added as a refractory material, this refractory material has good durability, and has strong corrosion resistance to metals and slag.

Ceramic industry

Pyrophyllite mineral material has high mechanical strength, good heat resistance, high whiteness, and small shrinkage at high temperatures. Adding pyrophyllite to the ceramic blank can reduce the firing temperature, shorten the drying time, increase the firing strength, and reduce glaze defects , Make ceramics perfect, it is a good raw material for making ceramics.


Pyrophyllite powder has the characteristics of high whiteness, mostly flaky particles, small bulk density, good fluidity, medium adsorption, low moisture absorption, dispersibility, general wettability, good suspension and partial acidity. It can meet the requirements of pesticides and insecticides for bulk density, adsorption, suspension and acidity of fillers (carriers).

Paint industry

Pyrophyllite can meet the requirements of paint for filler color, hiding power, reinforcement and suspension; at the same time, it can also meet the reinforcement performance of composite plastics for fillers and give special functions (such as stagnation) requirements.
pyrophyllite used for paint industry

Solid sealing and pressure transmission materials

Pyrophyllite molecules are easy to slide between layers to cause creep, and their hardness is low, and they have relatively low shear strength and good electrical and thermal insulation. They are cheap and easy to obtain. They are often used as pressure transmission and sealing media in the high-pressure synthesis industry. The raw material is widely used.


The translucent pyrophyllite with beautiful color and pattern, waxy or pearly luster, is a valuable raw material for carving crafts, such as Shoushan stone, Qingtian stone, blood stone, frozen stone, etc. The handicrafts include incense burners, smoking sets, prayer beads, seals, stone figurines, vases, decorative stones, etc., with bright colors, dazzling brilliance, no cracks, high strength, moderate hardness, good transparency, and less impurities.

Paper industry

Pyrophyllite is used as a paper-making filler to increase the density, smoothness, uniformity, softness and printability of paper.


Pyrophyllite can also be used for plastic and rubber fillers; fillers and brighteners for white cotton cloth and fireproof cloth; fillers and lubricants for candy and medicine; cosmetic ingredients; raw materials for enamel glaze; admixtures for welding rods; colored pencil cores with pyrophyllite, Can increase the slippery while writing.

If you want to know the Pyrophyllite ultrafine grinding mill price or have any questions about limestone ultra fine grinding mill, please do not hesitate to contact us.

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