CN110982975A

CN110982975A - Combined brick for preventing deformation and damage of thermocouple

Info

Publication number: CN110982975A
Application number: CN201911195443.XA
Authority: CN
Inventors: 杜友尧; 陆益飞; 黄军; 陆照彬; 高伟国; 常李
Original assignee: Jiangsu Shagang Group Co Ltd; Zhangjiagang Hongchang Steel Plate Co Ltd
Current assignee: Jiangsu Shagang Group Co Ltd; Zhangjiagang Hongchang Steel Plate Co Ltd
Priority date: 2019-11-28
Filing date: 2019-11-28
Publication date: 2020-04-10

Abstract

The invention relates to a combined brick for preventing deformation and damage of a thermocouple, belonging to the field of thermocouple combined bricks. The combined brick of the deformation damage prevention thermocouple is formed by splicing two thermocouple brick bodies; the two thermocouple brick bodies are arranged in an upper row and a lower row and are spliced with each other. According to the combined brick for preventing deformation and damage of the thermocouple, the combined brick with the oval slotted hole replaces the original reserved square hole, and the oval hole is prefabricated in the middle when the square brick is fired and used for mounting the thermocouple.

Description

Combined brick for preventing deformation and damage of thermocouple

Technical Field

The invention relates to a combined brick for preventing deformation and damage of a thermocouple, belonging to the field of thermocouple combined bricks.

Background

The air supply system of hot blast stove, blast furnace, generally comprises 4 hot blast stoves, 2 send 2 to burn. The detection of the thermocouple temperature is crucial to the hot blast stove in the using process, the temperature change of each position of the hot blast stove can reflect the using conditions of the hot blast stove in two stages of burning and air supply, and the problem can be timely fed back through the abnormal change of the temperature. And the temperature point is connected into the PLC system to play the interlocking role, and the thermocouple is the eye of the process production. Traditional mounting means builds the quad slit for prefabrication, what use is the square brick, the small (20 x 10 cm) brick of brick is built by laying bricks or stones with the brick material, the quad slit is reserved in the centre for the installation thermocouple, there are a lot of drawbacks in this kind of combination brick building means, along with the increase of hot-blast furnace age, the brick of the inside is at high temperature (12000), the high pressure (400 kp) air current flows down, the brick takes place to warp easily, owing to be the square brick, four sides edges and corners, the atress area is big, interact between brick and the brick, the wide range, long-term accumulation causes the whole piece of brick to drop, directly damage the thermocouple like this.

Disclosure of Invention

The invention provides a combined brick for preventing deformation and damage of a thermocouple aiming at the defects.

The invention adopts the following technical scheme:

the combined brick of the deformation damage prevention thermocouple is formed by splicing two thermocouple brick bodies; the two thermocouple brick bodies are arranged in an upper row and a lower row and are spliced with each other.

According to the combined brick for the deformation-damage-preventing thermocouple, the arc groove is formed in the opposite surface between the upper thermocouple brick body and the lower thermocouple brick body; the arc groove between the upper thermocouple brick body and the lower thermocouple brick body which are mutually spliced forms a through hole.

According to the combined brick for the deformation-damage-preventing thermocouple, the through hole formed by the arc groove between the upper thermocouple brick body and the lower thermocouple brick body is an oval through hole.

According to the combined brick for the deformation-damage-preventing thermocouple, the grooves or the convex grooves on the splicing surfaces of the upper thermocouple brick body and the lower thermocouple brick body are formed; the convex groove is embedded in the groove.

According to the combined brick for the deformation and damage prevention thermocouple, the shapes of the groove and the convex groove are matched with each other, and the groove and the convex groove are circular or square.

According to the combined brick for preventing deformation and damage of the thermocouple, the grooves or the convex grooves on the upper thermocouple brick body or the lower thermocouple brick body are respectively positioned on two sides of the arc groove and are parallel to the extending direction of the arc groove.

According to the combined brick for the deformation-damage-preventing thermocouple, the same convex groove or groove is arranged on the upper thermocouple brick body, or the convex groove and the groove are independently arranged; the lower thermocouple brick body is provided with the same convex groove or is provided with the convex groove and the groove independently

Advantageous effects

According to the combined brick for preventing deformation and damage of the thermocouple, the combined brick with the oval slotted hole replaces the original reserved square hole, and the oval hole is prefabricated in the middle when the square brick is fired and used for mounting the thermocouple.

The oval edges in the combined brick adopting the oval holes are smooth, have no edges and corners, and have uniform stress points and small deformation.

The process of the thermocouple combined brick is suitable for a large-scale hot blast furnace system in the metallurgical industry.

Drawings

FIG. 1 is a schematic view of a hot blast stove according to the present invention;

FIG. 2 is an exploded view of the composite tile of the present invention;

fig. 3 is a side view of the composite brick of the present invention.

In the figure, 1 is an upper thermocouple brick body, 2 is a lower thermocouple brick body, 3 is an arc groove, 4 is an oval through hole, 5 is a groove, and 6 is a convex groove.

Detailed Description

In order to make the purpose and technical solution of the embodiments of the present invention clearer, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention without any inventive step, are within the scope of protection of the invention.

As shown in the figure: the combined brick of the thermocouple of deformation damage prevention, this combined brick is made up of two thermocouple brick bodies; the two thermocouple brick bodies are arranged in an upper row and a lower row and are spliced with each other. The opposite surface between the upper thermocouple brick body 1 and the lower thermocouple brick body 2 is provided with an arc groove 3; the arc groove 3 between the upper thermocouple brick body 1 and the lower thermocouple brick body 2 which are spliced mutually forms a through hole. The through hole formed by the arc groove 3 between the upper thermocouple brick body 1 and the lower thermocouple brick body 2 is an oval through hole 4. A groove 5 or a convex groove 6 is arranged on the splicing surface between the upper thermocouple brick body 1 and the lower thermocouple brick body 2; the tongue 6 is fitted into the groove 5.

According to the elliptical hole combined brick masonry method, even under high-pressure and high-temperature airflow, due to the fact that the elliptical hole is reserved in the middle when bricks are fired, the thermocouple is installed inside the square bricks, the bricks are mutually matched and tightly connected through the tenon-and-mortise structure, and the protection effect is achieved without loosening. Under the combined masonry of the elliptical trough bricks, the stability and the accuracy of thermocouple detection data are improved, the service life is prolonged, and the safe and stable operation of the hot blast stove is ensured.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a combined brick of thermocouple is damaged in preapring for an unfavorable turn of events shape which characterized in that: the combined brick is formed by splicing two thermocouple brick bodies; the two thermocouple brick bodies are arranged in an upper row and a lower row and are spliced with each other.

2. The combination brick of the deformation and damage prevention thermocouple according to claim 1, wherein: the opposite surface between the upper thermocouple brick body and the lower thermocouple brick body is provided with an arc groove; the arc groove between the upper thermocouple brick body and the lower thermocouple brick body which are mutually spliced forms a through hole.

3. The combination brick of the deformation and damage prevention thermocouple according to claim 2, wherein: the through hole formed by the arc grooves between the upper thermocouple brick body and the lower thermocouple brick body is an oval through hole.

4. The combination brick of the deformation and damage prevention thermocouple according to claim 2, wherein: the upper thermocouple brick body and the lower thermocouple brick body are spliced into a groove or a convex groove; the convex groove is embedded in the groove.

5. The combination brick of the deformation and damage prevention thermocouple according to claim 4, wherein: the shapes of the groove and the convex groove are mutually matched, and the groove and the convex groove are circular or square.

6. The combination brick of the deformation and damage prevention thermocouple according to claim 4, wherein: the upper thermocouple brick body or the lower thermocouple brick body is provided with a groove or a convex groove which is respectively positioned at two sides of the arc groove and is parallel to the extending direction of the arc groove.

7. The combination brick of the deformation and damage prevention thermocouple according to claim 4, wherein: the upper thermocouple brick body is provided with the same convex groove or is provided with the convex groove and the groove independently; the lower thermocouple brick body is provided with the same convex groove or is provided with the convex groove and the groove independently.