CN214290814U

CN214290814U - Novel torpedo jar of resistant erosion

Info

Publication number: CN214290814U
Application number: CN202022795777.5U
Authority: CN
Inventors: 李天学; 侯春玲; 贾博; 李纪伟; 巴涛涛
Original assignee: Henan Higer Refractories Co ltd
Current assignee: Henan Higer Refractories Co ltd
Priority date: 2020-11-27
Filing date: 2020-11-27
Publication date: 2021-09-28
Anticipated expiration: 2030-11-27

Abstract

The utility model discloses a novel torpedo jar of resistant erosion, including a jar body and build by laying bricks or stones at the internal portion of jar firebrick layer, be close to the fixed pouring bed of material that is provided with of inner wall department of jar mouth on firebrick layer, the utility model relates to a simple structure, it is convenient to use, and the one deck Al of knoing is surperficial to be able to bear or endure the firebrick of slag line portion in torpedo jar₂O₃the-SiC-C castable is used for preventing the erosion phenomenon of the refractory bricks caused by the iron slag on the surface of the molten iron, prolonging the service life of a slag line area in the torpedo ladle and reducing the cost investment of enterprises.

Description

Novel torpedo jar of resistant erosion

Technical Field

The utility model belongs to the technical field of torpedo jar structural design, concretely relates to novel torpedo jar of resistant erosion.

Background

Torpedo cars (also known as torpedo cars) are a type of apparatus used in steel production to transport molten iron produced in blast furnaces to steel or cast iron plants. Generally, the torpedo car is provided with a horizontal long cylinder for containing molten iron on a trolley; because the external shape is similar to torpedo, the torpedo tank is called. The torpedo car is widely applied in developed industrial countries such as Europe, America, Japan and the like, and is developed into movable molten iron pretreatment equipment. In recent years. Large and medium-sized iron and steel enterprises in China also gradually popularize and apply. The lining of the torpedo tank car has the functions of heat preservation and insulation and preventing the erosion of high-temperature molten metal and slag to the tank body.

At present, Al is built in the existing torpedo tank₂O₃the-SiC-C brick generally needs to be baked in a torpedo tank in the using process, the baking temperature reaches 1000-1200 ℃, so that a certain degree of oxidation is caused on the surface of the refractory bricks built in the torpedo tank, and the molten iron causes abnormal erosion on a slag line part in the torpedo tank due to the fact that the conventional molten iron is subjected to three-step stripping treatment or slag melting agent is added into the molten iron, and the refractory bricks at the slag line part cannot be repaired due to the fact that the graphite is contained in the refractory bricks, so that the service life of the slag line part of the torpedo tank is shortened, the matching degree with the surrounding refractory bricks cannot meet the using requirement, and waste is serious.

Disclosure of Invention

The utility model aims to solve the technical problem, a novel torpedo jar of resistant erosion is provided, its structural design is simple reasonable, it is convenient to use, the one deck Al of knoing on the resistant firebrick surface of slag line portion in the torpedo jar₂O₃the-SiC-C castable is used for preventing the erosion phenomenon of the refractory bricks caused by the iron slag on the surface of the molten iron, prolonging the service life of a slag line area in the torpedo ladle and reducing the cost investment of enterprises.

The utility model adopts the technical proposal that: the utility model provides a novel torpedo jar of resistant erosion, includes a jar body and builds by laying bricks or stones at the internal portion of jar firebrick layer, is provided with the pouring material layer at the fixed inner wall department that is close to the jar mouth on firebrick layer.

The firebrick layer is including the impact zone brick that is located jar internal bottom position, the furring brick of setting in jar internal side face position, the slag line district brick that is located jar internal portion and leans on the upper position and the top brick that is located jar body jar mouth position.

The castable layer is fixedly arranged on the inner wall of the slag line area brick.

And the surface of one side, close to molten iron, of the brick body of the slag line area brick is provided with transverse and longitudinal crossed grooves.

The groove is of a rectangular structure.

The groove is of a V-shaped structure.

The casting material layer is made of Al₂O₃-SiC-C。

The novel anti-corrosion torpedo tank is characterized in that a layer of Al is knotted on the surface of the slag line brick in the torpedo tank₂O₃the-SiC-C castable is used for preventing iron slag on the surface of molten iron from corroding refractory bricks in a slag line area, preventing the reduction of the local service life of a refractory brick layer, avoiding the problem of low matching degree with surrounding refractory bricks due to corrosion of the slag line area bricks and reducing the occurrence of waste.

A castable layer is fixedly arranged on the inner wall of the refractory brick layer close to the tank opening; the purpose of this is: is used for locally protecting the bricks in the slag line area, and a layer of Al is knotted on the surfaces of the bricks in the slag line area₂O₃the-SiC-C castable avoids the problem that bricks in a slag line area are abnormally corroded, so that the service life of the whole torpedo tank is prolonged.

The utility model has the advantages that:

the utility model has the advantages of simple structure and convenient use, and the surface of the refractory brick at the slag line part in the torpedo ladle is knotted with one layer of Al₂O₃the-SiC-C castable is used for preventing the erosion phenomenon of the refractory bricks caused by the iron slag on the surface of the molten iron, prolonging the service life of a slag line area in the torpedo ladle and reducing the cost investment of enterprises.

Drawings

FIG. 1 is a cross-sectional view of the torpedo of the present invention;

FIG. 2 is a longitudinal cross-sectional view of the torpedo of the present invention;

FIG. 3 is a block diagram of a slag line zone of the first embodiment of the present invention;

fig. 4 is a brick structure diagram of a slag line area in the second embodiment of the present invention.

The labels in the figure are: 1. a tank body; 2. a refractory brick layer; 201. impact area bricks; 202. pasting the face brick; 203. bricks in the slag line area; 204. a top brick; 3. pouring a material layer; 4. and (4) a groove.

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.

The first embodiment,

As shown in figures 1-3, the novel anti-corrosion torpedo tank comprises a tank body 1 and a refractory brick layer 2 built inside the tank body 1, wherein a castable layer 3 is fixedly arranged on the inner wall of the refractory brick layer 2 close to a tank opening.

The refractory brick layer 2 comprises an impact area brick 201 positioned at the bottom in the tank body 1, a facing brick 202 arranged at the inner side surface of the tank body 1, a slag line area brick 203 positioned at the upper position in the tank body 1, and a top brick 204 positioned at the tank opening of the tank body 1.

The fixed inner wall position that sets up at slag line district brick 203 in the castable layer 3, at the during operation, the molten iron upper surface in the torpedo jar is located the position at slag line district brick 203 place, sets up the iron slag that the castable layer 3 can avoid the molten iron to lead to the fact the erosion to slag line district brick 203, can prolong the life of slag line district brick 203, because slag line district brick 203 and whole firebrick layer 2 adopt Al₂O₃the-SiC-C bricks contain graphite in the material, and cannot be repaired after being corroded, so the pouring material layer 3 is arranged to protect the bricks 203 in the slag line area.

The surface of one side, close to molten iron, of the brick body of the slag line area brick 203 is provided with transverse and longitudinal crossed grooves 4, the grooves 4 are of rectangular structures, and the casting material layer 3 is made of Al₂O₃And because the surface of one side, close to molten iron, of the refractory brick layer 2 made of the material is a smooth surface after the masonry is completed, in order to prevent the castable layer 3 from falling off in use, the grooves 4 which are transversely and longitudinally crossed are arranged, so that the bonding strength of the castable layer 3 and the slag line area bricks 203 can be improved, the bonding area of the castable layer 3 and the slag line area bricks 203 is improved, and the risk of falling off is reduced.

The novel anti-corrosion torpedo tank is characterized in that a layer of Al is knotted on the surface of the slag line brick in the torpedo tank₂O₃the-SiC-C castable is used for preventing iron slag on the surface of molten iron from corroding refractory bricks in a slag line area, preventing the local service life of the refractory brick layer 2 from being reduced, avoiding the problem of low matching degree with surrounding refractory bricks due to corrosion of the slag line area bricks 203 and reducing the occurrence of waste.

Example II,

As shown in fig. 1, 2 and 4, the difference between this embodiment and the above embodiments is that the groove 4 is a V-shaped structure, and the effect of the groove 4 is the same as that of the groove 4 with a rectangular structure, both of which are to increase the bonding strength between the castable layer 3 and the slag line area bricks 203, so as to avoid the problem of easy falling.

Claims

1. The utility model provides a novel torpedo jar of resistant erosion which characterized in that: the pouring material layer is fixedly arranged on the inner wall of the refractory brick layer close to the tank opening; the refractory brick layer comprises an impact area brick positioned at the bottom in the tank body, a facing brick arranged at the inner side surface of the tank body, a slag line area brick positioned at the upper position in the tank body and a top brick positioned at the tank opening of the tank body.

2. The new type of corrosion resistant torpedo in accordance with claim 1 wherein: the casting material layer is fixedly arranged on the inner wall of the brick in the slag line area.

3. The new type of corrosion resistant torpedo in accordance with claim 2 wherein: the surface of one side of the brick body of the slag line area brick, which is close to the molten iron, is provided with transverse and longitudinal crossed grooves.

4. The new type of corrosion resistant torpedo in accordance with claim 3 wherein: the groove is of a rectangular structure.

5. The new type of corrosion resistant torpedo in accordance with claim 3 wherein: the groove is in a V-shaped structure.

6. The new type of corrosion resistant torpedo in accordance with claim 1 wherein: the material of the casting material layer is Al₂O₃-SiC-C。