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Roller mill with synchronizing device

A synchronous device, technology of roller mills, applied in the field of roller mills, can solve the problems of edge element damage, misalignment of grinding rollers, increase of uneven wear of grinding rollers, damage of grinding rollers, etc.

Active Publication Date: 2022-03-11
THYSSENKRUPP IND SOLUTIONS AG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This uneven loading results in a misalignment of the grinding rolls, where the grinding rolls are not arranged parallel to each other
Increased misalignment leads to uneven wear of the grinding roll or damage to the grinding roll, wherein in particular the edge elements mounted at the roll ends are damaged or destroyed

Method used

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  • Roller mill with synchronizing device
  • Roller mill with synchronizing device
  • Roller mill with synchronizing device

Examples

Experimental program
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Effect test

Embodiment Construction

[0027] figure 1 A roller mill 10 is shown having a first grinding roller 12 and a second grinding roller 14 , wherein the grinding rollers 12 , 14 are arranged opposite each other and can rotate in opposite directions. A grinding gap 16 is formed between the grinding rollers 12 , 14 . The grinding rolls 12, 14 each have a substantially cylindrical roll base body 18, 20 and a drive shaft 22, 24 arranged coaxially with the grinding rolls 12, 14, the ends of the drive shafts 22, 24 being preferably Extends beyond the respective roller base body 18 , 20 . Each of the grinding rollers 12, 14 is held in a bearing unit, wherein the bearing unit is supported, for example, on a frame 29 on a figure 1 not fully shown. The first grinding roller 12 is held in a floating bearing unit 26 , wherein the second grinding roller 14 is held in a fixed bearing unit 28 . The stationary bearing unit 28 includes two bearings 30 , 32 each disposed at opposite roller ends and holding the drive shaf...

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PUM

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Abstract

The invention relates to a roller mill (10) for comminuting bulk material, comprising a first grinding roller (12) and a second grinding roller (14), which are arranged opposite one another and can be driven in opposite directions, and a fixed bearing unit (28) and a floating bearing unit (26), a grinding gap (16) being formed between the grinding rollers (12, 14), the invention relates to a grinding machine (10) comprising a fixed bearing unit (26) for receiving a second grinding roller (14) and a floating bearing unit (26) for receiving a first grinding roller (12), in which: a plurality of hydraulic actuators (38, 40) for applying a force to the floating bearing unit are attached to the floating bearing unit (26); the hydraulic actuators (38, 40) are hydraulically connected to a synchronization device (42), the synchronization device (42) having a plurality of hydraulic cylinders (50, 52, 54, 56) each having a piston (58, 60), the pistons (58, 60) being connected to each other by a mechanical coupling (62) such that the movement of the pistons (58, 60) is coupled.

Description

technical field [0001] The invention relates to a roller mill for comminuting bulk materials, wherein the roller mill has two grinding rollers connected to a synchronization device. Background technique [0002] Roller mills are commonly used to crush material to be ground such as limestone, clinker, ore or similar rocks. Roller mills usually have two grinding rollers which are arranged parallel to one another and can rotate in opposite directions, wherein a grinding gap for comminution of the material is formed between the grinding rollers. DE 39 30 773 A1 discloses a roller mill with a stationary mounted grinding roll and a floating mounted grinding roll, wherein the floating bearing is in each case connected to a hydraulic cylinder. [0003] During operation of a roller mill, the grinding rolls are often loaded unevenly due to, for example, uneven wear of the surface of the grinding rolls or due to materials having different properties and grain sizes. This uneven loadi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B02C4/02B02C4/28B02C4/32B02C23/04
CPCB02C4/02B02C4/28B02C4/32B02C23/04B02C25/00
Inventor 佩德罗·格雷罗帕尔马亚历山大·彼得斯
Owner THYSSENKRUPP IND SOLUTIONS AG