Papermaking filler vertical ultra-fine grinding, ultra-fine grinding machine, vertical grinding machine

Release time:

2024-11-01 09:10

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In the paper industry, in order to improve the quality of paper, reduce production costs and meet the different needs of the market for paper performance, it is often necessary to add a variety of water-insoluble solid particles to the pulp as fillers. These fillers can improve the properties of paper such as opacity, brightness, smoothness, printability, softness, uniformity and dimensional stability. As an efficient and accurate grinding equipment, the vertical grinder can grind various mineral fillers to the required fineness, so as to meet the high requirements of the papermaking process.

1.Filler grinding:

The vertical mill can grind mineral fillers such as kaolin, talc, calcium carbonate and titanium dioxide commonly used in the paper industry2000Ultra-fine particle size above the mesh. This ultra-fine particle size helps to increase the coverage and retention of the filler, thereby improving the quality of the paper. For example, as a new type of papermaking filler, wollastonite is ground into ultrafine powder, which is called"Mineral fiber" can be used to replace part of wood pulp, significantly reduce pulp consumption, save the amount of plant fiber, and indirectly reduce the use of forest resources. After grinding wollastonite into ultrafine powder below 1250 mesh, adding it to the pulp as a filler can significantly improve the whiteness, chemical stability and thermal stability of the paper, and improve itsHeat resistance,Corrosion resistanceCorrosion performance.

2. Improve paper performance：

The uniform particle size distribution and high purity of the filler ground by the vertical grinder make the paper perform better in printing, writing, etc. For example, the high dispersibility and plasticity of kaolin can significantly improve the printability and writeability of paper sheets.：Talcum powder can improve the uniformity, smoothness, gloss and ink absorption of the paper sheet.：Calcium carbonate and titanium dioxide can enhance the opacity, whiteness and printing performance of paper.

3. Reduce production costs：

The high-efficiency grinding capacity of the vertical grinder reduces the preparation cost of the filler, and the addition of the filler can reduce the amount of fiber, thereby reducing the cost of raw materials in the papermaking process. In addition, the addition of fillers can also improve the dewatering and drying of pulp and reduce energy consumption.

4. Environmental benefits：

The use of mineral fillers instead of part of wood pulp helps to reduce dependence on forest resources and cut down, thereby maintaining ecological balance. At the same time, relatively little waste is generated during the processing and use of mineral fillers, which helps reduce the environmental load of the paper industry.

The application of vertical grinding machine in papermaking filler not only improves the quality and performance of paper, but also reduces the production cost and environmental protection pressure. With the continuous improvement of the fineness and quality requirements of the paper industry, the vertical grinding machine will play a more important role in this field.

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