Steelmaking tundish wall dry material fixing and supporting device

Abstract

The steel-making tundish wall dry material fixing and supporting device comprises a first supporting side plate and a second supporting side plate, a first supporting cross rod is fixedly installed between the first supporting side plate and the second supporting side plate, and the first supporting side plate and the second supporting side plate are symmetrically arranged along the center line of the first supporting cross rod. The first supporting side plate and the second supporting side plate are arranged in an inclined mode, and the included angle between the first supporting side plate and the first supporting cross rod and the included angle between the second supporting side plate and the first supporting cross rod are 140-150 degrees. And a second supporting cross rod is fixedly mounted between the first supporting side plate and the second supporting side plate. The first supporting side plate and the second supporting side plate are attached to the surface of the tundish wall dry material. And a tundish wall permanent layer and a tundish shell are arranged on the side wall of the tundish wall dry material. The tundish wall dry material supporting device has the advantages of being reasonable in structural design, convenient and fast to operate, low in machining and manufacturing cost and capable of fixing and supporting tundish wall dry materials, improving the use safety of the tundish wall dry materials and prolonging the service life of the tundish wall dry materials.

Description

Technical Field

[0001] The utility model relates to the technical field of steelmaking tundish wall construction auxiliary devices, in particular to a steelmaking tundish wall dry material fixing and supporting device. Background Art

[0002] The tundish wall is built with dry materials, which have good high temperature performance, convenient construction, easy separation from the permanent layer, long continuous pouring time and other advantages. It is the most widely used refractory material for the working lining of the tundish at this stage. With the development of high-purity clean steel smelting, people hope that the tundish dry materials will not pollute the molten steel, and it is best to have a certain ability to clean the molten steel. At present, the more commonly used dry materials are magnesium, magnesium calcium and forsterite materials; after the dry material of the tundish wall is vibrated and baked, it shrinks rapidly due to the decrease in temperature of the dry material after demolding, resulting in a large gap between the dry material of the tundish wall and the permanent layer, which is easy to cause the tundish wall to collapse. This problem is more prominent when the tundish has a large inclination angle. Due to the influence of the tundish shape and the shrinkage properties of the dry material after baking, cracks appear in the dry material after demolding after construction is completed, and the gap between it and the permanent layer is large, causing the dry material of the tundish wall to collapse when used online, or steel seeping from the cracks and bulging during the online pouring of the tundish, which seriously affects the masonry quality of the tundish and the online safe turnover, especially when the inclination angle of the tundish wall is large. This problem is more prominent.

[0003] After the dry material construction is completed, if no corresponding fixing and supporting protection is taken, cracks are likely to occur in the working layer. During the pouring process, due to the expansion of the cracks, molten steel seeps in and causes steel to be added between the wall of the tundish and the permanent layer. The tundish, as a container for holding liquid steel, is prone to safety risks such as leakage, posing a greater safety hazard to online use.

[0004] At present, domestic steel mills have increasingly stringent requirements on the continuous production of tundishes, purification of molten steel and leakage of molten steel. The quality stability of the dry material on the tundish wall directly affects the safe production of each steel mill. It is very necessary to adopt fixed support for the dry material on the tundish wall to stabilize the stability and safety of the tundish on-line use. Utility Model Content

[0005] The utility model aims to provide a steelmaking tundish wall dry material fixing and supporting device which has reasonable structural design, convenient operation, low processing and manufacturing cost, can fix and support the dry material on the tundish wall, and improve the safety and service life of the dry material on the tundish wall.

[0006] The utility model discloses a steelmaking tundish wall dry material fixed support device, comprising a first support side plate 1 and a second support side plate, a first support cross bar is fixedly installed between the first support side plate and the second support side plate, and the first support side plate and the second support side plate are symmetrically arranged along the center line of the first support cross bar.

[0007] The first supporting side plate and the second supporting side plate are capable of contacting with the dry material on the intermediate bag wall, and can support the dry material on the intermediate bag wall. The first supporting cross bar arranged between the first supporting side plate and the second supporting side plate can fix the dry material on the intermediate bag wall. The device is easy to operate, flexible to use, and has good supporting and fixing effects. It can effectively avoid the problem of cracks appearing on the dry material on the intermediate bag wall after demolding after the construction is completed, and a large gap is separated from the permanent layer, thereby preventing the occurrence of bulging problems, thereby improving the service life of the dry material on the intermediate bag wall.

[0008] The first supporting side plate and the second supporting side plate are arranged obliquely, and the angle between the first supporting side plate, the second supporting side plate and the first supporting cross bar is 140°-150°.

[0009] The first supporting side plate and the second supporting side plate are tilted to make the first supporting side plate and the second supporting side plate better fit with the surface of the dry material on the intermediate bag wall, and the fit is tighter, so that the first supporting side plate and the second supporting side plate can better play the supporting and fixing role; the angle between the first supporting side plate, the second supporting side plate and the first supporting cross bar is 140°-150°, and the angle between the first supporting side plate, the second supporting side plate and the dry material on the intermediate bag wall can be adjusted according to the inclination of the surface of the dry material on the intermediate bag wall, and can adapt to the support and fixation of the dry material on the intermediate bag wall with various inclinations, and has a wide range of applications.

[0010] A second supporting cross bar is fixedly installed between the first supporting side plate and the second supporting side plate.

[0011] The second supporting cross bar can further strengthen the fixing support effect of the first supporting cross bar on the first supporting side plate and the second supporting side plate, making the support and fixation more firm, improving the stability of the entire device, and making it safer and more reliable.

[0012] The first supporting side plate and the second supporting side plate are arranged in contact with the surface of the intermediate bag wall dry material; the side wall of the intermediate bag wall dry material is provided with a permanent layer of the intermediate bag wall and a cladding.

[0013] Beneficial effects of the utility model:

[0014] 1) The first supporting side plate and the second supporting side plate are capable of contacting with the dry material on the tundish wall, and can support the dry material on the tundish wall. The first supporting cross bar arranged between the first supporting side plate and the second supporting side plate can fix the dry material on the tundish wall. The device is convenient to operate, flexible to use, and has good supporting and fixing effects. It can effectively avoid the problem of cracks appearing on the dry material on the tundish wall after demolding after the construction is completed, and the gap between the dry material and the permanent layer is large, thereby improving the service life of the dry material on the tundish wall.

[0015] 2) The first supporting side plate and the second supporting side plate are tilted to make the first supporting side plate and the second supporting side plate better fit with the surface of the dry material on the intermediate bag wall, and fit more tightly, so that the first supporting side plate and the second supporting side plate can better play a supporting and fixing role; the angle between the first supporting side plate, the second supporting side plate and the first supporting cross bar is 140°-150°, and the angle between the first supporting side plate, the second supporting side plate and the dry material on the intermediate bag wall can be adjusted according to the inclination of the surface of the dry material on the intermediate bag wall, and can adapt to the support and fixation of the dry material on the intermediate bag wall with various inclinations, and has a wide range of applications.

[0016] 3) The second support cross bar can further strengthen the fixing support of the first support cross bar on the first support side plate and the second support side plate, making the support and fixation more firm, improving the stability of the entire device, and making it safer and more reliable.

[0017] 4) The device has a reasonable structural design, convenient operation, low processing and manufacturing cost, and is easy to process. It has been put into use with good results. It is economical and environmentally friendly, can increase the service life of the dry material on the wall of the intermediate bag, and is worthy of large-scale promotion and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a usage state diagram of the utility model.

[0020] In the figure: a first supporting side plate 1, a first supporting cross bar 2, a second supporting cross bar 3, a second supporting side plate 4, a permanent layer of the middle bag wall and a cladding 5, and dry material 6 of the intermediate bag wall. DETAILED DESCRIPTION

[0021] Example 1.

[0022] The following will be combined with the attached Figure 1 , 2 The utility model is further described.

[0023] The utility model includes a first supporting side plate 1, a first supporting cross bar 2, and a second supporting side plate 4. The specific structure includes the first supporting side plate 1 and the second supporting side plate 4, the first supporting cross bar 2 is fixedly installed between the first supporting side plate 1 and the second supporting side plate 4, and the first supporting side plate 1 and the second supporting side plate 4 are symmetrically arranged along the center line of the first supporting cross bar 2.

[0024] The first supporting side plate 1 and the second supporting side plate 4 are arranged tilted, and the angle between the first supporting side plate 1, the second supporting side plate 4 and the first supporting cross bar 2 is 140°.

[0025] The first supporting side plate 1 and the second supporting side plate 4 are arranged in contact with the surface of the intermediate bag wall dry material 6; the side wall of the intermediate bag wall dry material 6 is provided with a permanent layer of the intermediate bag wall and a cladding 5.

[0026] The first supporting side plate 1 and the second supporting side plate 4 are made of steel plates with a thickness of 10 mm and a size of 200 mm×300 mm; the first supporting cross bar 2 is made of steel pipes with a diameter of 30-40 mm and a wall thickness of 3-5 mm.

[0027] Usage: First, use steel pipes and steel plates to make according to the size of the drawing; make the first supporting side panel 1, the second supporting side panel 4; the first supporting cross bar 2; after making, manually install the first supporting side panel 1 and the second supporting side panel 4 on the surface of the dry material 6 of the middle bag wall. It must be ensured that they are installed 300-500mm down from the middle bag. 1-2 fixed support devices can be arranged on the surface of the dry material of the middle bag wall. When installing, place them vertically from top to bottom until the fixed support device squeezes the dry material of the middle bag wall.

[0028] Example 2.

[0029] The following will be combined with the attached Figure 1 , 2 The utility model is further described.

[0030] The utility model includes a first supporting side plate 1, a first supporting cross bar 2, a second supporting cross bar 3, and a second supporting side plate 4. The specific structure includes the first supporting side plate 1 and the second supporting side plate 4, the first supporting cross bar 2 is fixedly installed between the first supporting side plate 1 and the second supporting side plate 4, and the first supporting side plate 1 and the second supporting side plate 4 are symmetrically arranged along the center line of the first supporting cross bar 2.

[0031] The first supporting side plate 1 and the second supporting side plate 4 are arranged tilted, and the angle between the first supporting side plate 1, the second supporting side plate 4 and the first supporting cross bar 2 is 150°.

[0032] A second supporting cross bar 3 is fixedly installed between the first supporting side plate 1 and the second supporting side plate 4 .

[0033] The first supporting side plate 1 and the second supporting side plate 4 are made of steel plates with a thickness of 10 mm and a size of 200 mm×300 mm; the first supporting cross bar 2 is made of steel pipes with a diameter of 30-40 mm and a wall thickness of 3-5 mm.

[0034] How to use: First, use steel pipes and steel plates to make according to the size of the drawing; make the first support side plate 1, the second support side plate 4; the first support cross bar 2; after making, manually install the first support side plate 1 and the second support side plate 4 on the surface of the dry material of the middle bag wall. It must be ensured that they are installed 300-500mm down from the middle bag. 1-2 fixed support devices can be arranged on the surface of the dry material of the middle bag wall. When installing, place them vertically from top to bottom until the fixed support device squeezes the dry material of the middle bag wall. The second support cross bar 3 can further strengthen the role of the first support cross bar 2 in fixing and supporting the first support side plate 1 and the second support side plate 4, making the support and fixation more secure, improving the stability of the entire device, and making it safer and more reliable.

Claims

1. A steelmaking tundish wall dry material fixing and supporting device, characterized in that: The invention comprises a first supporting side plate (1) and a second supporting side plate (4), wherein a first supporting cross bar (2) is fixedly mounted between the first supporting side plate (1) and the second supporting side plate (4), and the first supporting side plate (1) and the second supporting side plate (4) are symmetrically arranged along the center line of the first supporting cross bar (2).

2. A steelmaking tundish wall dry material fixing and supporting device as claimed in claim 1, characterized in that: The first supporting side plate (1) and the second supporting side plate (4) are arranged obliquely, and the included angle between the first supporting side plate (1), the second supporting side plate (4) and the first supporting cross bar (2) is 140°-150°.

3. A steelmaking tundish wall dry material fixing and supporting device as claimed in claim 2, characterized in that: A second supporting cross bar (3) is fixedly mounted between the first supporting side plate (1) and the second supporting side plate (4).

4. A steelmaking tundish wall dry material fixing and supporting device as claimed in claim 3, characterized in that: The first supporting side plate (1) and the second supporting side plate (4) are arranged in contact with the surface of the intermediate bag wall dry material (6); the side wall of the intermediate bag wall dry material (6) is provided with a permanent layer of the intermediate bag wall and a bag shell (5).

Images