Probe core body with high-performance structure

Abstract

The invention relates to a probe core body of a high efficiency structure. The front end of the probe core body is a frustum of a cone, and the rear end thereof is a cylindrical boss; two mounting holes are formed on the front end surface in the axial direction, and the cross section shapes of the two mounting holes are respectively matched with a temperature sensor and an oxygen measuring element; a molten steel channel is shaped inside the cylindrical boss of the probe core body; a sampling box containing cavity and a carbon determining chamber are arranged in the axial direction inside thecylindrical boss of the probe core body; a liquid inlet hole is formed on the boss and communicates with the molten steel channel; and the temperature sensor, the oxygen measuring element and a wire chase of a guide line of a carbon determining thermocouple are embedded in the boss of the probe core body. The mould cavities shaped in the probe body of the high efficiency structure form the carbonmeasuring chamber, a sampling chamber, a temperature measuring opening, an oxygen measuring opening and a liquid opening, thus eliminating a steel carbon measuring cup, a steel sampling cup, a front plug and a back plug and numerous other parts, thereby resulting in simpler structure and lower price. The probe core body is made from resin sand, so that the probe is automatically broken into pieceswhen the probe falls on a platform hopper arranged twenty meters below. Therefore, sampling blocks can be directly sent for spectroscopic analysis without the need of being beaten by a worker with ahammer, thus reducing the labor intensity of the worker, shortening the detecting time, and improving steel-making speed.

Description

technical field [0001] The invention relates to a probe core body with a high-efficiency structure for fixing temperature measuring, sampling and oxygen-fixing elements in a multi-functional auxiliary gun compound probe. Background technique [0002] There are many kinds of multi-functional secondary gun composite probes, such as TCS (ie temperature measurement, carbon determination and sampling) type, TSO (ie temperature measurement, sampling and oxygen determination) type, TCSO (ie temperature measurement, carbon determination, sampling and fixed oxygen) type and so on. Among them, the TCSO (that is, temperature measurement, carbon determination, sampling and oxygen determination) type multi-functional sub-lance compound probe has the most complete functions and the most complex structure. Its basic structure usually includes the probe body part and pottery head, temperature sensor, oxygen determination element (zirconia tube) and its high temperature resistant protection...

AI Technical Summary

Problems solved by technology

[0003] The existing multi-functional auxiliary gun compound probe also exposed some defects in the application process: 1. Since the pottery head is made of strong refractory material, it is very difficult for workers to break the pottery head with a hammer to take out the sample block, Therefore, it takes time to demould the sampling block, usually 3-4 minutes, and it only takes 30 minutes to smelt a furnace of steel, which greatly restricts the efficiency of steelmaking and hinders the improvement of production.

2. There are many parts, complex structure, and difficult assembly, resulting in high production and material costs of the multi-functional sub-gun composite probe

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