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Application development of fly ash ---- ultra-fine grinding

From:www.ultra-mill.com   Time:2021-04-19 08:45   Click:

What is fly ash?

Fly ash refers to the fine ash collected from the flue gas after coal combustion, and is the main solid waste discharged from coal-fired power plants.
If a large amount of fly ash is not treated, it will generate dust and pollute the atmosphere; if it is discharged into the water system, it will cause river siltation, and the toxic chemicals in it will also cause harm to humans and organisms. However, fly ash can be used as a resource. For example, as an admixture for concrete.

Fly ash ultrafine grinding:

Because the microbeads (ultra-fine fly ash) particles are extremely small, they can be added to the concrete to fill the gaps between the cement particles, so that free water can be discharged, and the fluidity of the cement slurry can be increased. Therefore, it can be used to prepare self-compacting concrete. The strength and durability of concrete are greatly improved compared with ordinary concrete.

The development of fly ash-based inorganic fillers is an important direction for the future green and high-value utilization of fly ash and further increase the utilization rate. Especially in recent years, it has become the focus of research in universities and research institutes. However, due to the fine particle size requirements of inorganic fillers, the energy consumption of ultra-fine fly ash grinding is too high, it is not economical, and there is no good modification technology to enable fly ash to achieve the high value of functionalization of various inorganic fillers. Therefore, for many years There has been no industrialization since. After years of research and development, we have taken the lead in breaking through the low-cost ultra-fine grinding mill, grading and functional high-value-added modification of fly ash in the world, and have taken the lead in realizing industrialized operations. With the in-depth improvement and development of this series of technologies, fly ash-based inorganic fillers will have huge market potential.

fly ash

Market applications of fly ash:

1. Replace a large number of inorganic non-metallic mineral fillers
Mainly replace a large number of inorganic non-metallic mineral fillers, such as calcium carbonate, kaolin, talc, quartz, feldspar, wollastonite, limestone, carbon black, phosphorous flame retardants, etc.

2. As a green high-performance superfine admixture or mineral admixture or water reducer
It mainly replaces cement, mineral powder, silica fume, ultra-fine silica powder, ultra-fine limestone powder, etc., and is used in various building materials such as cement and commercial mix to reduce costs and improve performance. Especially in large-volume, self-compacting, high-strength, high-performance, special concrete, the effect is more obvious.

3. Applications in other high value-added fields
The use of fly ash microbeads instead of alumina powder to manufacture ceramic membranes, and the use of spherical microbeads as porogens can achieve better filtration effects and greatly reduce the cost of raw materials.

4.Utilizing the hollow, microporous and spherical features of fly ash microbeads, it can be used for heat preservation, noise reduction, light weight, adsorption material or carrier, etc.
As a chemical filler, it mainly replaces a large number of inorganic non-metallic mineral fillers, such as calcium carbonate, kaolin, talc, quartz, feldspar, wollastonite, limestone, alumina, magnesium oxide, magnesium hydroxide, aluminum hydroxide, white Carbon black, carbon black, phosphorous flame retardant, etc., used in the following materials:
  • Polymer Materials
Such as various plastics, rubbers, plastic elastomers, polyurethane elastomers, wires and cables, synthetic leather, adhesives, etc.
  • Coating, paint
Such as anti-corrosion paint, wear-resistant floor paint, wear-resistant, corrosion-resistant and high-temperature resistant coatings, etc.
  • Composite material
Such as FRP, wood plastic, linoleum waterproof, etc.
  • Papermaking materials
Such as a variety of fire-resistant, corrosion-resistant, abrasion-resistant, water-resistant, tear-resistant, high-stiffened specialty paper, packaging paper, corrugated paper, cartons, etc.
  • Ceramic material
Such as artificial wear-resistant and corrosion-resistant marble, granite, floor tiles, etc.

The use of fly ash microbeads instead of alumina powder to manufacture ceramic membranes, and the use of spherical microbeads as porogens can achieve better filtration effects and greatly reduce the cost of raw materials. Utilizing the hollow, microporous and spherical features of fly ash microbeads, it can be used for heat preservation, noise reduction, light weight, adsorption material or carrier, etc.

ultra fine grinding mill

CLIRIK fly ash ultra-fine grinding mill, the fineness of the material can be adjusted between 325-3000mesh, large processing capacity, wear resistance and long service life. The wear-prone parts inside the sorting machine are made of ceramic lining, and the grading rotor is made of wear-resistant alloy materials. It is intelligently controlled, easy to operate, and one-key start. Operators can start working with simple training.

If you are interested in our product, welcome to contact us, we will provide you with professional solutions.


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