Double-core air brick

Abstract

The utility model discloses a double-core air brick which comprises a brick body, two containing grooves are formed in the inner side of the brick body, brick cores are arranged on the inner sides of the two containing grooves, a conveying unit is arranged on the inner side of the brick body, the conveying unit comprises a rectangular hole, the rectangular hole is formed in the front side of the brick body, and the brick cores are arranged in the rectangular hole. And a supporting block is arranged on the inner side of the rectangular hole, two conveying cylinders are fixedly connected to the middle of the supporting block, a plurality of air holes are formed in the upper sides of the conveying cylinders, and connecting pipes are fixedly connected to the front side and the rear side between the two conveying cylinders. By arranging the supporting block, the two conveying cylinders, the connecting pipe, the air source pipes, the electromagnetic valve and the air pressure sensor, when one air source is unstable, the other air source pipe conveys air into the air brick, so that the air pressure during air conveying is stable, and the influence on the quality of molten steel is avoided.

Description

Technical Field

[0001] The utility model relates to the field of air-permeable bricks, in particular to a double-core air-permeable brick. Background Art

[0002] The main reason for using air bricks in the ladle is to improve the quality of molten steel and increase production efficiency. First of all, argon blowing at the bottom of the ladle is an important part of the molten steel refining process, and bottom blowing air bricks are the most important functional components of this process. By blowing argon into the molten steel to stir the molten steel, the temperature and composition of the molten steel are uniform, thereby improving the quality of the molten steel.

[0003] After searching, the application number is "202122861639.7", which provides a double-core breathable brick. The inert gas passes through the second gas source pipe 6 through the first gas source pipe 5, and part of it enters the second core brick 3, and the other part enters the ladle through the first core brick 2. If an accident occurs and the external gas source suddenly stops supplying gas, the molten steel may seep downward from the first core brick 2. When the molten steel moves downward along the internal gap of the first core brick 2, it will compress the gas in the second core brick 3. The gas pressure buffering effect can prevent part of the molten steel from seeping downward. At the same time, when the molten steel enters the first gas source pipe 5, due to its tortuous design, the molten steel will gradually cool down and solidify while flowing, thereby preventing the molten steel from leaking downward.

[0004] The gas is introduced into the second gas source pipe through the box, so that the gas is discharged into the ladle from the gap of the brick core. When a single gas source pipe is used, when the external gas supply is unstable, the molten steel in the ladle can easily penetrate into the brick core, so that the gap inside the brick core is blocked, affecting the gas supply, and new air permeable bricks need to be replaced, which increases the workload of the staff. Utility Model Content

[0005] In order to overcome the shortcoming in the prior art that a single gas source easily causes molten steel to penetrate into the air brick when the gas pressure is unstable, one of the purposes of the utility model is to provide a double-core air brick.

[0006] One of the purposes of the utility model is achieved by the following technical solution: a double-core air-permeable brick, comprising a brick body: two placement grooves are provided on the inner side of the brick body, brick cores are provided on the inner sides of the two placement grooves, and a conveying unit is provided on the inner side of the brick body;

[0007] The conveying unit includes a rectangular hole, which is opened on the front side of the brick body. A support block is arranged on the inner side of the rectangular hole. Two conveying cylinders are fixedly connected to the middle part of the support block. A plurality of air holes are opened on the upper side of the conveying cylinder. A connecting pipe is fixedly connected between the two conveying cylinders and on both the front and rear sides. An air source pipe is fixedly connected to the middle part of the connecting pipes on both the front and rear sides. Solenoid valves are arranged on the outer sides of the left and right ends of the connecting pipes on both the front and rear sides. An air pressure sensor is fixedly connected to the bottom of the inner side of the conveying cylinder.

[0008] According to the double-core air-permeable brick, a mounting hole is provided on the upper side of the support block, so as to facilitate the installation of the solenoid valve.

[0009] According to the double-core air-permeable brick, the connecting pipe is arranged in a U-shaped structure.

[0010] According to the double-core breathable connected brick described in the claim, a connecting rod is provided between the support block and the brick body, so as to facilitate the positioning of the support block.

[0011] According to the double-core air-permeable brick, the support block is slidably connected to the rectangular hole.

[0012] According to the double-core air-permeable brick, the outer end of the air source pipe passes through the outer side of the supporting block.

[0013] Beneficial effects:

[0014] By providing a support block, two conveying tubes, a connecting pipe, a gas source pipe, a solenoid valve and a pressure sensor, when one gas source is unstable, the other gas source pipe can convey gas into the air brick to make the gas pressure stable during gas conveying and avoid affecting the quality of molten steel.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0017] Figure 1 This is an overall three-dimensional structural diagram of a double-core air-permeable brick of the utility model;

[0018] Figure 2 This is a sectional three-dimensional structural diagram of a double-core air-permeable brick of the utility model;

[0019] Figure 3 This is a partial three-dimensional structural diagram of a conveying unit in a double-core air-permeable brick of the utility model;

[0020] Figure 4It is a three-dimensional structural diagram of a conveying unit in a double-core air-permeable brick of the utility model.

[0021] Legend:

[0022] 1. Brick body; 2. Placement groove; 3. Brick core; 4. Conveying unit; 401. Rectangular hole; 402. Support block; 403. Conveying cylinder; 404. Connecting rod; 405. Air vent; 406. Connecting pipe; 407. Solenoid valve; 408. Air source pipe; 409. Mounting hole; 410. Air pressure sensor. DETAILED DESCRIPTION

[0023] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0024] Reference Figure 1-4 A double-core breathable brick comprises a brick body 1: two placement grooves 2 are provided on the inner side of the brick body 1, brick cores 3 are provided on the inner side of the two placement grooves 2, and a conveying unit 4 is provided on the inner side of the brick body 1, wherein two brick cores 3 are provided to facilitate conveying inert gas on both sides.

[0025] The conveying unit 4 includes a rectangular hole 401, which is opened on the front side of the brick body 1. A support block 402 is arranged on the inner side of the rectangular hole 401. Two conveying cylinders 403 are fixedly connected to the middle of the support block 402. A plurality of air holes 405 are opened on the upper side of the conveying cylinder 403. A connecting pipe 406 is fixedly connected between the two conveying cylinders 403 and on both the front and rear sides. The middle of the connecting pipes 406 on both the front and rear sides are fixedly connected to an air source pipe 408. Solenoid valves 407 are arranged on the outer sides of the left and right ends of the connecting pipes 406 on both the front and rear sides. An air pressure sensor 410 is fixedly connected to the bottom of the inner side of the conveying cylinder 403. The connecting pipe 406 is arranged in a U-shaped structure. The outer end of the air source pipe 408 passes through the support The outside of block 402, wherein the air pressure sensor 410 and the solenoid valve 407 are electrically connected to the external controller, the air pressure sensor 410 is used to detect the air pressure inside the conveying cylinder 403, when in use, the air source pipes 408 on the front and rear sides are connected to the external air pump, when the air pressure is stable, a single air source pipe 408 conveys gas, when the air pressure is unstable, the external controller controls another solenoid valve 407 to start, so that another air pump is started to convey gas to the conveying cylinder 403, so that the falling air pressure tends to be stable, to avoid molten steel from penetrating into the breathable brick when the air pressure drops, affecting the gas conveying effect of the breathable brick, wherein the multiple air holes 405 are distributed in a circular array, and there is a gap between the brick core 3 and the placement groove 2.

[0026] A mounting hole 409 is provided on the upper side of the support block 402 . The mounting hole 409 is a passage for mounting the solenoid valve 407 , which is convenient for later disassembly.

[0027] A connecting rod 404 is provided between the support block 402 and the brick body 1, and the support block 402 is slidably connected to the rectangular hole 401. When in use, the support block 402 is limited by the connecting rod 404. When the brick core 3 of the air-permeable brick is damaged, the connecting rod 404 is removed, and then the support block 402 is pulled out to remove the conveying unit 4 for easy maintenance.

[0028] Working principle: When in use, the staff first connects the two air pumps to the front and rear air source pipes 408, starts a single air pump, and allows the inert gas to pass into the gap of the brick core 3 through the air source pipe 408 and the connecting pipe 406, which is convenient for the transportation of the inert gas. When the air pressure is unstable, the air pressure sensor 410 and the external controller control the solenoid valve 407 to start, so that the other air pump is started, which is convenient for continuing to fill the gas, so that the air pressure is stable and the penetration of molten steel is avoided.

[0029] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A double-core air-permeable brick, characterized in that: It comprises a brick body (1): two placement grooves (2) are provided on the inner side of the brick body (1), a brick core (3) is provided on the inner side of the two placement grooves (2), and a conveying unit (4) is provided on the inner side of the brick body (1); The conveying unit (4) comprises a rectangular hole (401), the rectangular hole (401) is provided on the front side of the brick body (1), a support block (402) is provided inside the rectangular hole (401), two conveying cylinders (403) are fixedly connected to the middle of the support block (402), a plurality of air holes (405) are provided on the upper side of the conveying cylinder (403), a connecting pipe (406) is fixedly connected between the two conveying cylinders (403) and on both the front and rear sides, a gas source pipe (408) is fixedly connected to the middle of the connecting pipes (406) on both the front and rear sides, solenoid valves (407) are provided on the outer sides of both the left and right ends of the connecting pipes (406) on both the front and rear sides, and a pressure sensor (410) is fixedly connected to the bottom of the inner side of the conveying cylinder (403).

2. A double-core air-permeable brick according to claim 1, characterized in that: A mounting hole (409) is provided on the upper side of the support block (402).

3. A double-core air-permeable brick according to claim 1, characterized in that: The connecting pipe (406) is arranged in a U-shaped structure.

4. A double-core air-permeable brick according to claim 1, characterized in that: A connecting rod (404) is provided between the support block (402) and the brick body (1).

5. A double-core air-permeable brick according to claim 1, characterized in that: The support block (402) is slidably connected to the rectangular hole (401).

6. A double-core air-permeable brick according to claim 1, characterized in that: The outer end of the gas source pipe (408) passes through the outer side of the support block (402).

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