Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method, control device and drive device for detaching a charge stuck to the inner wall of a grinding pipe

A technology of driving device and control device, applied in the direction of grain processing, etc., can solve the problem of time-consuming and so on

Inactive Publication Date: 2007-07-04
SIEMENS AG
View PDF1 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Removal of stuck charges is subject to extremely high and mostly manual labor overhead and is very time consuming

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method, control device and drive device for detaching a charge stuck to the inner wall of a grinding pipe
  • Method, control device and drive device for detaching a charge stuck to the inner wall of a grinding pipe
  • Method, control device and drive device for detaching a charge stuck to the inner wall of a grinding pipe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] Figure 1 shows the schematic construction of a tube mill, eg for grinding ore. The tube mill has a grinding tube 1 connected to a drive 2 . Furthermore, there is a control device 3 which sends control or regulating signals to the drive device 2 . The control device 3 can also receive and process signals, for example measurement signals from the drive device 2 or other components of the tube mill. The grinding tube 1 is preferably formed in the form of a drum. The tube mill has a support device (not shown in detail in the drawing) for grinding the tube 1 .

[0029] The drive 2 of the tube mill has at least one electric motor, for example designed as a ring motor. The electric motor is coupled to a converter, not shown in detail. The characteristic of the electric motor as a ring motor is that it can drive the grinding tube 1 without a gear and thus enables a particularly robust operation of the tube mill.

[0030] The drive 2 is preferably designed as a field-orient...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a method for detaching a charge (5) which is stuck to the inner wall of a grinding pipe (1), wherein the drive device (2) of the grinding pipe (1) is controlled by a control device (3) for targeted removal of the charge (5) that is stuck. The grinding pipe (1) is rotated in a targeted manner such that the charge (5) that is stuck is removed from the inner wall of the grinding pipe (1) as a result of multiple modification of the rotational speed of the grinding pipe (1) and, optionally, as a result of abrupt braking of the grinding pipe (1). Generally speaking, the material-dependent maximum angle of rotation F of the grinding pipe is not exceeded in order to avoid the charge that is stuck from falling in an uncontrolled manner. The invention supercedes labour-intensive and protracted methods for detaching such charges (5) since the tasks can be carried out by the same motor of the drive device (2) which is used to drive the grinding pipe (1) during the grinding process.

Description

technical field [0001] The invention relates to a method for removing adhering material from the inner wall of a grinding tube, in particular of a tube mill, a control device for a grinding tube drive and a grinding tube drive. Background technique [0002] Tube mills are mainly used for grinding materials such as ores. It is not uncommon for the operation of the tube mill to be interrupted for a longer period of time and the tube mill to be shut down. This is the case, for example, for maintenance reasons. During tube mill shutdown, material within the grinding tube of the tube mill may solidify and stick to the inner wall of the grinding tube. This cohesive cured material attached to the inner wall of the grinding tube is referred to as cohesive charges or also "frozen charges". If the tube mill is restarted after a prolonged shutdown, there is the risk that the adhered charge falls off the grinding tube at a great height, falls and causes serious damage to the tube mil...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B02C17/18B02C17/24B02C23/04B02C25/00
CPCB02C23/04B02C17/24B02C17/1805B02C25/00Y10T29/53687Y10T29/49817
Inventor 诺伯特·贝克斯蒂芬·斯米茨库尔特·蒂施勒
Owner SIEMENS AG
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com