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Vertical roller mill and method for operating a vertical roller mill

A technology of vertical roller mill and grinding plate, applied in grain processing and other directions, can solve the problems of the influence of binder characteristics and low content of fine particles, and achieve the effect of increasing grinding efficiency

Inactive Publication Date: 2016-08-24
THYSSENKRUPP IND SOLUTIONS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] However, the fines content of the material to be ground that can be obtained with vertical roller mills is lower than that obtained with other grinding systems such as tube mills, which can have a negative impact on the properties of the binder during the production of the binder

Method used

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  • Vertical roller mill and method for operating a vertical roller mill
  • Vertical roller mill and method for operating a vertical roller mill
  • Vertical roller mill and method for operating a vertical roller mill

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Embodiment Construction

[0033] in accordance with Figure 4 In the exemplary embodiment of the two grinding rollers 2 , 5 are driven by associated grinding roller drives 6 , 7 . The grinding plate 1 is drawn through the grinding bed 3 and is operatively connected to a braking unit 8 for regulating the slippage between the grinding plate 1 and the grinding rollers 2,5. Furthermore, a regulator unit 9 is provided which is connected to the grinding roller drives 6 , 7 and to the braking unit 8 . The actual slippage can be determined by means of sensors, in particular sensors for detecting the rotational speed of the grinding plate 1 and, for example, the grinding rollers 2 , 5 .

[0034] The braking unit 8 here is configured as a generator in order to generate energy when the grinding plate 1 is braked, which energy can be used for the grinding roller drives 6 and / or 7 via the usual intermediate energy storage device 14 .

[0035] according to Figure 4 , if grinding plate 1 is not additionally brake...

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Abstract

The invention relates to a vertical roller mill and a method for operating the vertical roller mill, wherein its grinding assembly comprises a grinding plate and at least one grinding roller, which interact so that the material to be ground is ground between the grinding plate and at least one grinding roller. is comminuted in a grinding bed between rollers, wherein at least one grinding assembly is driven and at least one grinding assembly is trailed, and the trailing grinding assembly is braked so as to increase passage between the grinding plate and the at least one grinding roller The energy flow of the grinding bed.

Description

technical field [0001] The invention relates to a vertical roller mill and a method for operating the vertical roller mill, wherein a grinding assembly consisting of a grinding plate and at least one grinding roller interacts in such a way that the material to be ground is and at least one grinding roll, wherein at least one grinding assembly is driven and at least one grinding assembly is trailed. Background technique [0002] Vertical roller mills, which allow significant energy savings compared to other grinding systems such as tube mills, are increasingly being used to prepare powder-type materials for the binder industry. [0003] DE 10 2007 033 256 A1 discloses a vertical roller mill with driven grinding plates, wherein the grinding plates drive the grinding rollers via the grinding bed. However, this would lead to a high degree of variation in performance, which in turn would lead to high loads on the drive train, thus requiring a correspondingly high safety factor i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B02C15/06
CPCB02C15/14B02C15/006B02C15/00
Inventor 马库斯·伯格
Owner THYSSENKRUPP IND SOLUTIONS AG