— Vertical roller mills (VRM) are widely used to grind, dry, and select powders from various materials in the cement, electric power, metallurgical, chemical, and nonmetallic ore industries. For the sectors above, the VRM is a powerful and energy-intensive grinding field [1], [2].

In a VRM the grinding takes place by pressure and shear force. The clinker passes within seconds between roller and table. The energy input to the material during one passage between grinding rollers and grinding track is relatively low. The thick-ness of the material bed between roller and table is a multiple of the particle size.

In the cement clinker grinding circuit, the residence time distribution in a VRM was measured by applying the dispersion model, the tank-in-series model, and the perfect mixer with a bypass...

In addition, the use of a suitable grinding aid can improve the particle size distribution of cement and positively influence clinker hydration, thus improving the cement quality. Here we describe in details the positive effects of the use of a cement additive during slag cement grinding in VRM.

 — Vertical Roller Mill (VRM): Vertical roller mills are increasingly popular in modern cement plants. They use rollers and a table to grind clinker, offering greater energy efficiency and finer particle size control compared to traditional ball mills.

As a case study of a clinker grinding VRM equipped with previously mentioned 2-Way System and the latest separator, UBE introduces the data from the No.5 Clinker Mill at Chinfon Cement in Vietnam, which was commissioned earlier this year (Table 1). In Chinfon Cement's plant, UBE

 — This study investigated a mathematical model for an industrial-scale vertical roller mill(VRM) at the Ilam Cement Plant in Iran. The model was calibrated using the initial survey's data, and the breakage rates of clinker were then back-calculated.

a vertical roller mill (VRM) • Surpasses the classic methods if the controlled process demonstrates significant disturbances • A high degree of attention to the process states is required in order to make punctual corrections • Process states are displayed and controlled continu-ously for real-time optimisation

 — Grinding systems in the cement industry play a crucial role in particle size distribution and particle shape. This affects the reaction of the clinker and the temperature dependence of the dehydrated gypsum which is also ground together with the clinker.

Grinding of cement clinker and granulated blast furnace slag in roller grinding mills (vertical airswept grinding mills) is a technology introduced by Loesche.