Safe integral air brick

Abstract

The utility model belongs to the technical field of metallurgical refractory materials, and particularly discloses a safety type integral air brick which comprises a brick core and a seat brick formed outside the brick core in a pouring mode, at least one annular tightening piece is embedded outside the seat brick, and the tightening piece is arranged on the periphery of the seat brick in a surrounding mode and makes contact with the outer side wall of the seat brick in an abutting mode. A bottom supporting plate matched with the seat brick is arranged at the bottom of the seat brick, a tail pipe is arranged in the center of the bottom of the brick core, the tail end of the tail pipe penetrates through the seat brick and the bottom supporting plate to extend downwards, and when the seat brick generates longitudinal cracks, the binding force of the tightening piece and the jacking force of the bottom supporting plate can prevent the seat brick from generating relative displacement at the cracks, so that the cracks are prevented from being further damaged. The purpose of avoiding accidents such as steel dripping or steel leakage caused by further expansion of displacement cracks of the seating brick at the longitudinal crack position is achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to metallurgical refractory material technical field, specifically discloses a safe integral type air brick. BACKGROUND

[0002] Air brick is important functional element in steelmaking process, and inert gas is blown into from the bottom of the ladle through the air brick, a large number of bubbles are formed in the molten steel, and the molten steel can be stirred and impurities in the molten steel can be promoted to float in the process of bubble rising, so that the composition and temperature of the molten steel are uniform, and therefore the dependence of modern steelmaking process on the air brick is very high.

[0003] Air brick can be divided into integral type and split type according to assembly mode, the split type air brick can realize hot replacement of air core of the ladle, so that the ladle age is easily matched, but the installation operation requirement is relatively high, professional personnel and tools need to be configured to complete the hot replacement work, otherwise there is the security risk of leakage of steel, therefore, the integral type air brick is adopted in most domestic steel plants at present, but the existing integral type air brick is not absolutely safe, and in the actual use process, there is also the risk that the seat brick tail part is longitudinally cracked due to the production quality of the seat brick or improper on-site operation, if the seat brick produces displacement at the longitudinal crack, the crack is further enlarged, the molten steel can be invaded into the crack, the air brick steel sleeve in contact with the seat brick is melted, the steel dripping or leakage accident is caused, and the safety of on-site workers is seriously endangered. SUMMARY

[0004] In order to solve the problems in the background art, the utility model discloses a safe integral type air brick, which can effectively prevent the seat brick from further displacement after cracking, and prevent the leakage accident caused by crack development.

[0005] In order to achieve the above-mentioned purposes, the utility model adopts the following technical scheme:

[0006] A safe integral type air brick, which comprises a brick core and a seat brick formed by pouring outside the brick core, at least one annular clamping member is embedded outside the seat brick, the clamping member is arranged around the periphery of the seat brick and tightly contacts the outer sidewall of the seat brick, a bottom supporting plate is arranged at the bottom of the seat brick, a tail pipe is arranged at the bottom center of the brick core, and the tail pipe extends downward through the seat brick and the bottom supporting plate.

[0007] Further, the safe integral type air brick is provided with two clamping members which are arranged at the two ends of the seat brick near the tail pipe along the axial direction of the seat brick.

[0008] Further, the safe integral type air brick is provided with a pressure sensor on the side of each clamping member facing the seat brick, the pressure sensor is used for measuring the pressure between the seat brick and the clamping member, and the pressure sensor has an alarm function.

[0009] Further, the safety type integral type gas permeable brick is uniformly provided with a plurality of anchoring hooks on the side of the bottom supporting plate facing the seat brick.

[0010] Further, the safety type integral type gas permeable brick is provided with a pipe hole matched with the tail pipe in the middle of the bottom supporting plate, and a sealing element is arranged between the pipe hole and the tail pipe.

[0011] Further, the safety type integral type gas permeable brick, the brick core is a diffuse type, a slit type or a sheet type gas permeable brick core.

[0012] Compared with the prior art, the safety type integral type gas permeable brick has the beneficial effects that:

[0013] The safety type integral type gas permeable brick comprises a brick core and a seat brick formed by pouring outside the brick core, at least one annular clamping element is embedded outside the seat brick, the clamping element is arranged around the periphery of the seat brick and tightly contacts the outer side wall of the seat brick, a bottom supporting plate is arranged at the bottom of the seat brick, a tail pipe is arranged at the bottom center of the brick core, the tail pipe extends downward through the seat brick and the bottom supporting plate, when the seat brick is longitudinally cracked, the binding force of the clamping element and the supporting force of the bottom supporting plate can prevent the seat brick from relatively displacing at the crack, thereby preventing the crack from further expanding, and the purpose of avoiding accidents such as steel dripping or steel leakage caused by the displacement of the seat brick at the longitudinal crack is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a sectional structure schematic view of the safety type integral type gas permeable brick of the utility model;

[0015] Figure 2 is a top view structure schematic of the bottom supporting plate in the utility model Figure One ;

[0016] Figure 3 is a top view structure schematic of the bottom supporting plate in the utility model Figure Two ;

[0017] In the above figures: 1-brick core; 2-seat brick; 3-clamping element A; 4-pressure sensor; 5-clamping element B; 6-bottom supporting plate; 6.1-supporting plate body; 6.2-pipe hole; 6.3-anchoring hook; 7-tail pipe. DETAILED DESCRIPTION

[0018] In order to better understand the utility model, the contents of the utility model will be further illustrated below in combination with embodiments, but the contents of the utility model are not limited to the following embodiments.

[0019] In combination with the drawings Figures 1-3The utility model discloses a safe integral type air brick, which comprises a brick core 1 and a seat brick 2 formed by pouring outside the brick core 1, at least one annular clamping member is embedded outside the seat brick 2, the clamping member is arranged around the periphery of the seat brick 2 and tightly contacts the outer side wall of the seat brick 2, a bottom supporting plate 6 is arranged at the bottom of the seat brick 2, a tail pipe 7 is arranged at the bottom center of the brick core 1, the tail pipe 7 extends downward through the seat brick 2 and the bottom supporting plate 6, when the seat brick 2 is longitudinally cracked, the binding force of the clamping member and the top supporting force of the bottom supporting plate 6 can prevent the seat brick 2 from relatively moving at the crack, thereby preventing the crack from further expanding, and the purpose of avoiding accidents such as steel dripping or steel leakage caused by the displacement of the seat brick 2 at the longitudinal crack is achieved.

[0020] As an optional design, preferably, the safe integral type air brick, two clamping members are arranged outside the seat brick 2 along the axial direction of the seat brick 2, the clamping members are clamping member A3 and clamping member B5 respectively, the clamping member A3 and the clamping member B5 are arranged at one end of the seat brick 2 close to the tail pipe 7, it should be noted that, preferably, the distance between the clamping member A3 and the tail of the seat brick 2 is 200-250mm, and the distance between the clamping member B5 and the tail of the seat brick 2 is 50-100mm.

[0021] As an optional design, preferably, the safe integral type air brick, a pressure sensor 4 is arranged on the side of the clamping member facing the seat brick 2, the pressure sensor 4 is used for measuring the pressure between the seat brick 2 and the clamping member, the pressure sensor 4 has an alarm function, the pressure sensor 4 is prior art, so the structure thereof will not be described in detail, in working, first, the interval value of the pressure is set on the control panel of the pressure sensor 4, when the measured value of the pressure sensor 4 corresponding to the clamping member A3 and the clamping member B5 is lower than the lowest value of the interval value or higher than the highest value of the interval value, the alarm function of the pressure sensor 4 is automatically started, and the on-site staff is reminded.

[0022] As an optional design, preferably, the safe integral type air brick, the bottom supporting plate 6 comprises a circular or square supporting plate body 6.1 matched with the seat brick 2, a plurality of anchor hooks 6.3 are uniformly distributed on the side of the supporting plate body 6.1 facing the seat brick 2, and stable connection between the bottom supporting plate 6 and the seat brick 2 is ensured.

[0023] As an optional design, preferably, the safe integral type air brick, a pipe hole 6.2 matched with the tail pipe 7 is arranged in the middle of the supporting plate body 6.1, and a sealing member is arranged between the pipe hole 6.2 and the tail pipe 7, so that the tail pipe 7 can be inserted into the pipe hole 6.2 in a stable posture, and the length of the tail pipe 7 between the brick core 1 and the pipe hole 6.2 is ensured.

[0024] As an optional design, preferably, the safe integral type air brick, the brick core 1 is a diffuse type, a slit type or a sheet type air brick core 1, and the application range is wide.

[0025] The preparation process of the safety type integral venting brick is as follows:

[0026] Four metal cylinders with a diameter and height of 5mm are welded at the positions of 100mm and 200mm from the tail of the integral venting brick on the inner side of the integral venting brick mold, and every four cylinders are located on the same horizontal plane and are uniformly distributed, the top end of the cylinder is polished to be arc-shaped, so that the metal cylinder serves as a positioning device for placing the clamping member, the closed-loop clamping member A3 and the clamping member B5 are welded by steel bands according to the size of the seat brick 2, the clamping member A3 and the clamping member B5 are circular rings or square rings matched with the seat brick 2, and the side of the clamping member A3 and the clamping member B5 facing the seat brick 2 is respectively provided with a pressure sensor 4, and the interval value of the pressure is set on the control panel of the pressure sensor 4; a steel plate is cut according to the size of the seat brick 2, a pipe hole 6.2 is reserved in the center of the steel plate, and an anchor hook 6.3 is welded at four corner positions of the steel plate to manufacture a bottom support plate 6; the bottom support plate 6 with the anchor hook 6.3 is placed on the bottom of the integral brick mold with the side with the anchor hook 6.3 upward, the venting brick core 1 is placed in the integral brick mold, the tail pipe 7 passes through the tail pipe hole 7, the clamping member A3 and the clamping member B5 are placed on the metal cylinders at the specified positions, and the seat brick 2 is cast into shape, so that the clamping member A3, the clamping member B5 and the bottom support plate 6 are pre-buried in the seat brick 2 after demolding;

[0027] In the use of the integral venting brick, if longitudinal cracks appear at the tail of the seat brick 2, the restraining force of the clamping member A3 and the clamping member B5 and the jacking force of the bottom support plate 6 can prevent the relative displacement of the seat brick 2 at the crack, effectively prevent the expansion of the crack, and thus prevent the molten steel from invading the steel sleeve of the venting brick core 1 through the large crack, so that the steel dripping or leakage accident is effectively avoided;

[0028] In the later stage of the use of the integral venting brick, if longitudinal cracks appear at the tail of the seat brick 2, the restraining force of the clamping member A3 and the clamping member B5 and the jacking force of the bottom support plate 6 cannot prevent the relative displacement of the seat brick 2 at the crack, when the measured value of the pressure sensor 4 corresponding to the clamping member A3 and the clamping member B5 is higher than the highest value of the interval value, the alarm function of the pressure sensor 4 is automatically started to remind the on-site staff to replace the venting brick as soon as possible, and when the measured value of the pressure sensor 4 corresponding to the clamping member A3 and the clamping member B5 is lower than the lowest value of the interval value, it indicates that the clamping member A3 or the clamping member B5 is broken, the crack at the tail of the seat brick 2 will further expand, the molten steel will invade the crack, so that the venting brick steel sleeve in contact with the seat brick is melted, the steel dripping or leakage accident is caused, and the safety of the on-site staff is seriously endangered, the alarm function of the pressure sensor 4 continues to alarm, and the on-site staff must replace the venting brick.

[0029] The above description is only the application implementation mode of the utility model, but the protection scope of the utility model is not limited to this, and the right scope of the utility model cannot be limited by this, and any equivalent change according to the technical scheme of the utility model should be covered in the protection scope of the utility model.

Claims

1. A safety monolithic air brick, characterized by: The seat brick is formed by pouring outside the brick core and at least one annular clamping member is embedded outside the seat brick, the clamping member is arranged around the periphery of the seat brick and tightly contacts with the outer side wall of the seat brick, a bottom supporting plate is arranged at the bottom of the seat brick, and a tail pipe is arranged at the bottom center of the brick core, the end of the tail pipe extends downward through the seat brick and the bottom supporting plate.

2. The safety integral air brick as claimed in claim 1, wherein: Two clamping members are arranged outside the seat brick and spaced along the axial direction of the seat brick, and the clamping members are arranged at the ends of the seat brick near the tail pipe.

3. The safety-type monolithic air brick according to claim 1 or 2, wherein Pressure sensors are arranged on the side of the clamping members facing the seat brick, the pressure sensors are used for measuring the pressure between the seat brick and the clamping members, and the pressure sensors have an alarm function.

4. The safety integral air brick as claimed in claim 3, wherein: A plurality of anchoring hooks are uniformly arranged on the side of the bottom supporting plate facing the seat brick.

5. The safety integral air brick as claimed in claim 3, wherein: A pipe hole is arranged in the middle of the bottom supporting plate and matches the tail pipe, and a sealing member is arranged between the pipe hole and the tail pipe.

6. The safety integral air brick as claimed in claim 3, wherein: The brick core is a diffuse type, a slit type or a sheet type air-permeable brick core.

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