Modular Cement Silo Transfer for Mining Machine Maintenance

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Solution Overview

Problem

The existing cement silo structures for mining machines are difficult to charge and maintain due to their elevated position, requiring a separate working platform and manual lifting of cement sacks, which complicates the filling and replacement process.

Innovation Solution

A separate cassette/box-type cement silo that can be transferred between a use position on top of the mining machine and a filling position at a lower level, allowing for easy filling and replacement, with optional integration of a transfer screw coupled to the mining machine's control system and a feed screw mechanism for efficient cement transfer.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the cement silo is located on top of the mining machine to enable cement feeding to the mixer, then the cement feeding function is achieved, but the charging and maintenance becomes difficult and complicated

Engineering Contradiction:
Improvecement feeding operationVSAvoidsilo charging and maintenance
Core Design Contradiction:
Ease of operationVSEase of manufacture

Solution Approach 1:

The cement silo is divided into a modular unit that can be separated from the mining machine. The silo becomes an independent interchangeable component that can be easily removed, charged, and reattached, resolving the contradiction between maintaining elevated position for feeding and enabling easy charging/maintenance.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The cement silo is made movable between a use position (on top of the mining machine) and a filling position (at ground level). This dynamic repositioning allows the silo to be easily charged and maintained at ground level while still being able to feed cement from an elevated position during operation.

Inventive Principle:
Principle #15Dynamics

2Productivity

If the cement silo is located high on the mining machine to feed cement to the mixer, then the cement delivery function is achieved, but a separate working platform and manual lifting equipment are required

Engineering Contradiction:
Improvecement delivery to mixerVSAvoidworking platform and lifting equipment
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The cement silo is segmented as a separate modular unit with its own support structure. This eliminates the need for a separate working platform and manual lifting equipment, as the silo can be independently positioned and handled as a complete unit.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The transfer means serves multiple functions: it positions the silo during operation, enables easy charging at ground level, and facilitates silo replacement. This multi-functional approach eliminates the need for separate working platforms and lifting equipment.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Ease of manufacture

If the cement silo is made as a separate interchangeable unit to simplify charging, then the filling and replacement process becomes easier, but transfer mechanisms are required

Engineering Contradiction:
Improvesilo filling and replacementVSAvoidtransfer means
Core Design Contradiction:
Ease of manufactureVSDevice complexity

Solution Approach 1:

The transfer means is designed as a multi-functional mechanism that not only moves the silo between positions but also supports the silo during charging, enables quick attachment/detachment, and facilitates replacement. This consolidates multiple functions into a single mechanism, minimizing added complexity while achieving easy filling and replacement.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Simplifies the charging and maintenance of the cement silo by enabling easy filling and replacement without the need for a separate working platform, improving operational efficiency and safety by reducing manual labor and enhancing the overall usability of the cement feeding system.

Implementation Method 1

a feed apparatus for feeding cement from a lower end of the cement silo to the mixer

Methodology Applied
Scientific EffectScrew: Screw

Implementation Method 2

the mining machine is provided with transfer means by which the cement silo may be moved between a use position on top of the mining machine and a filling position differing from the use position

Methodology Applied
Scientific EffectMechanical Force: Mechanical Force

Data Source

PatentEP2078135B1Cement silo structure for mining machine
Publication Date: 2015.08.26 SANDVIK MINING & CONSTR OY
  • EP2078135B1 patent drawingFigure 1~2b
  • EP2078135B1 patent drawingFigure 3a~4b
  • EP2078135B1 patent drawingFigure 5~6

AI summary

The invention relates to a cement silo structure for a mining machine comprising a mixer (9), a cement silo (10) for cement and a feed apparatus (11) for feeding cement to the mixer (9). The cement silo (10) is a separate unit that may be transferred by means of transfer means between a use position on top of the mining machine and a filling position that differs from the use position.