Immersion Device Slag Sampling Top Area Conduit

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Solution Overview

Problem

Conventional methods for collecting slag samples from steelmaking converters face challenges due to the converter slag's poor fluidity and gas components, making it difficult to obtain reliable samples without interfering with molten metal parameter measurements.

Innovation Solution

An immersion device with an inflow conduit and measuring element arranged in the top area of the immersion end, allowing molten slag to enter the conduit and direct it to a sample chamber while the measuring element is exposed to the molten metal, enabling reliable slag collection and measurement without hindering the molten metal parameter measurement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the inflow conduit is positioned to collect slag samples, then slag collection reliability is improved, but interference with molten metal parameter measurement increases

Engineering Contradiction:

Improveslag collection reliabilityVSAvoidmolten metal parameter measurement precision

Core Design Contradiction:

ReliabilityVSMeasurement precision

Solution Approach 1:

The device head is segmented into distinct functional zones: the top area contains the inflow conduit for slag collection, while the bottom area houses the measuring element for molten metal measurement. This spatial segmentation allows both functions to operate simultaneously without significant interference, resolving the contradiction between reliable slag collection and accurate measurement.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The inflow conduit is oriented to face the immersion direction (top area), while the measuring element is positioned at the bottom area, creating a vertical dimensional separation. This dimensional arrangement allows slag to enter the top of the device head while the measuring element remains positioned to accurately measure molten metal parameters without direct interference from the inflow conduit.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Productivity

If the inflow conduit faces the immersion direction for efficient slag entry, then slag collection efficiency is improved, but contamination of the sample increases

Engineering Contradiction:

Improveslag collection efficiencyVSAvoidsample purity

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The potential contamination source (inflow conduit) is extracted and positioned in the top area of the device head, separated from the measuring element in the bottom area. This extraction allows the inflow conduit to face the immersion direction for efficient slag collection while the measuring element remains in a cleaner zone, maintaining sample purity.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The device head structure acts as an intermediary between the inflow conduit and the measuring element. The top area where slag enters serves as an intermediate zone, allowing efficient slag collection while the bottom area provides a protected measurement zone, thus mediating between collection efficiency and sample purity requirements.

Inventive Principle:

Principle #24Intermediary (Mediator)

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

The solution allows for precise and pure slag sampling and measurement, reducing contamination and interference from the inflow conduit, and enabling high-precision analysis of molten metal parameters.

Implementation Method 1

the molten slag enters the external portion of the inflow conduit and is directed through the inner portion of the inflow conduit to the slag sample chamber

Methodology Applied

Scientific EffectGravity: Gravitation

Implementation Method 2

molten slag enters the external portion of the inflow conduit and is directed through the inner portion

Methodology Applied

Scientific EffectPressure gradient: Pressure Gradient

Implementation Method 3

a measuring element for measuring a parameter of the molten metal

Methodology Applied

Scientific EffectThermal energy detection: Thermocouple

Data Source

PatentUS10359343B2Immersion device for slag sample collection

Publication Date: 2019.07.23 HERAEUS ELECTRO NITE INT NV

AI summary

An immersion device for collecting a slag sample and measuring a molten metal parameter is provided. The immersion device includes an inflow conduit for directing the molten slag to a slag sample chamber and a measuring element for measuring the parameter of the molten metal. The inflow conduit and the measuring element are arranged in the top area of an immersion end of the immersion device and/or are facing towards an immersion direction. During immersion in the immersion direction into the molten slag and then the molten metal, the molten slag enters an external portion of the inflow conduit and is directed through an inner portion of the inflow conduit to the slag sample chamber. Reliable slag collection and molten metal measurement also in a converter can thereby be achieved. A method of collecting a slag sample and measuring a molten metal parameter is also provided.