CN219200932U

CN219200932U - TSO probe

Info

Publication number: CN219200932U
Application number: CN202223069933.5U
Authority: CN
Inventors: 潘刘峰; 徐国龙; 李阳
Original assignee: Jiangyin Xingcheng Special Steel Works Co Ltd
Current assignee: Jiangyin Xingcheng Special Steel Works Co Ltd
Priority date: 2022-11-18
Filing date: 2022-11-18
Publication date: 2023-06-16
Anticipated expiration: 2032-11-18

Abstract

The utility model relates to a TSO probe, and belongs to the technical field of steel. The device comprises a sleeve, a measuring head is arranged at one end of the sleeve, a sampler is arranged in an inner cavity of the sleeve, a sampling port is arranged on the side face of the sleeve, the sampling port is communicated with the sampler through a combustion chamber, and a protective cap is arranged on the sampling port. The measuring head comprises a mud head and a cover cap, wherein the mud head is arranged at the end part of the sleeve, the mud head is provided with an oxygen determination couple head and a temperature measurement couple head, and the cover cap is provided with the mud head, so that the oxygen determination couple head and the temperature measurement couple head are arranged in the cover cap. The sampler is wrapped with a refractory mud layer, and the sampler is close to the mud head. The protective cap is made of metal materials, and the thickness of the protective cap is larger than 0.8mm. The method and the device avoid the occurrence of bad samples or empty samples during sampling, and improve the sampling success rate; and reduces labor intensity and cost.

Description

TSO probe

Technical Field

The utility model relates to a TSO probe, and belongs to the technical field of steel.

Background

Steelmaking automation is one of important marks of the advancement of modern steelworks, and is also the development trend of modern steelmaking. In the process of fully-automatic steelmaking of the converter, parameters such as actual temperature, carbon content, oxygen content and the like of molten steel in the converter are required to be obtained. Automatic steelmaking based on sublance equipment technology, the sublance probe can directly measure the temperature, carbon or oxygen of molten steel in the converter, sample and measure the liquid level of the molten steel in the converter in the smelting process, and has the advantages of rapidness, accuracy, stability, automatic control and the like.

The common sublance TSO probe is used for measuring temperature, sampling, oxygen and carbon of molten steel in the converter smelting process. In actual operation, because the prior TSO probe has limitation in structural design, molten steel entering into a sampling drainage cavity from the front surface enters into the sampler from bottom to top, and the sample formed in the sampler is easy to have air holes, so that bad samples mixed with the air holes are formed. In addition, when smelting medium-high carbon steel, the steel slag layer in the terminal furnace is thickened, the fluidity is increased, and at the moment, the TSO (temperature measuring sampling oxygen determining converter sublance composite probe) measurement is carried out, so that the metal protective cap is melted in advance before the metal protective cap passes through the steel slag layer, and only steel slag enters the sampling drainage hole from the front, thereby forming an empty sample. These all affect the success rate of sampling, require subsampling, and increase labor intensity and cost of personnel.

Disclosure of Invention

The utility model aims to solve the technical problems of providing a TSO probe aiming at the prior art, avoiding bad samples or empty samples during sampling, improving the sampling success rate and reducing the labor intensity and the cost.

The utility model solves the problems by adopting the following technical scheme: the TSO probe comprises a sleeve, a measuring head is arranged at one end of the sleeve, a sampler is arranged in an inner cavity of the sleeve, a sampling port is arranged on the side face of the sleeve, the sampling port is communicated with the sampler through a combustion chamber, and a protective cap is arranged on the sampling port.

The measuring head comprises a mud head and a cover cap, wherein the mud head is arranged at the end part of the sleeve, the mud head is provided with an oxygen determination couple head and a temperature measurement couple head, and the cover cap is provided with the mud head, so that the oxygen determination couple head and the temperature measurement couple head are arranged in the cover cap.

The sampler is wrapped with a refractory mud layer, and the sampler is close to the mud head.

The protective cap is made of metal materials, and the thickness of the protective cap is larger than 0.8mm.

Compared with the prior art, the utility model has the advantages that: the TSO probe has the advantages that molten steel enters the combustion chamber from the sampling port on the side face of the sleeve and then enters the sampler, and because the molten steel flows from top to bottom, the molten steel enters the sampler through the static pressure of the molten steel, so that bubbles caused by gas in the sampler are avoided, bad samples or empty samples are avoided during sampling, and the sampling success rate is improved; and reduces labor intensity and cost.

Drawings

FIG. 1 is a schematic diagram of a TSO probe according to an embodiment of the present utility model;

in the figure, a cap 1, a oxygen determination coupling head 2, a sleeve 3, a sampler 4, a sampling port 5, a protective cap 6, a temperature measurement coupling head 7 and a mud head 8 are arranged.

Detailed Description

The utility model is described in further detail below with reference to the embodiments of the drawings.

As shown in fig. 1, a TSO probe in this embodiment includes a sleeve 3, a measuring head is disposed at one end of the sleeve 3, a sampler 4 is disposed in an inner cavity of the sleeve 3, a sampling port 5 is disposed on a side surface of the sleeve 3, the sampling port 5 is communicated with the sampler 4 through a combustion chamber, a protective cap 6 made of metal is covered on the sampling port 5, and a thickness of the protective cap 6 is greater than 0.8mm. After the probe enters molten steel, the thickness of the protective cap 6 can avoid that the probe is melted in advance before the probe passes through the steel slag layer, so that the probe can smoothly pass through the steel slag layer, and basic assurance is provided for sampling. The molten steel enters the combustion chamber from the sampling port on the side surface of the sleeve and then enters the sampler, and the molten steel flows from top to bottom and enters the sampler through the static pressure of the molten steel, so that bubbles caused by gas in the sampler are avoided, and the sampling success rate is improved.

The measuring head comprises a mud head 8 and a cover cap 1, wherein the mud head 8 is arranged at the end part of the sleeve 3, the mud head 8 is provided with an oxygen determination coupling head 2 and a temperature measurement coupling head 7, and the cover cap 1 is covered with the mud head 8, so that the oxygen determination coupling head 2 and the temperature measurement coupling head 7 are covered in the cover cap 1.

The sampler 4 is wrapped with a refractory mortar layer, and the sampler 4 is close to the mortar head 8.

The sampling device and the sampling method avoid bad samples or empty samples during sampling, improve sampling success rate and reduce labor intensity and cost.

In addition to the above embodiments, the present utility model also includes other embodiments, and all technical solutions that are formed by equivalent transformation or equivalent substitution should fall within the protection scope of the claims of the present utility model.

Claims

1. A TSO probe, characterized by: the device comprises a sleeve, a measuring head is arranged at one end of the sleeve, a sampler is arranged in an inner cavity of the sleeve, a sampling port is arranged on the side face of the sleeve, the sampling port is communicated with the sampler through a combustion chamber, and a protective cap is arranged on the sampling port.

2. A TSO probe according to claim 1, characterized in that: the measuring head comprises a mud head and a cover cap, wherein the mud head is arranged at the end part of the sleeve, the mud head is provided with an oxygen determination couple head and a temperature measurement couple head, and the cover cap is provided with the mud head, so that the oxygen determination couple head and the temperature measurement couple head are arranged in the cover cap.

3. A TSO probe according to claim 2, characterized in that: the sampler is wrapped with a refractory mud layer, and the sampler is close to the mud head.

4. A TSO probe according to claim 1, characterized in that: the protective cap is made of metal materials, and the thickness of the protective cap is larger than 0.8mm.